INDUSTRIAL COOLING SYSTEM TO CONTROL THE WATER TEMPERATURE OF THE PROCESS USING A HYBRID OF AIR-COOLED AND WATER-COOLED PHASES

Abstract

The invention is an industrial cooling system to control the temperature of the water coming back from the process using a hybrid of air-cooled and water-cooled phases related to the cooling systems, including heat exchangers to reduce and control the temperature of the fluids. This invention is also a hybrid system of air-cooled and water-cooled heat exchangers and heat exchangers immersed in water, and features intelligent control of the fluids entering the process reactors. The invention is a type of cooling tower based on heat exchanges between the hot fluid and ambient air as a cooling fluid and also heat transfer from hot fluid passageways with cooler fluids such as water or cooled air with the help of water. The fluid enters a round trip cycle by entering the tube network and finned tubes of the main heat exchanger.

Claims

1. The invention of industrial cooling system to control the water temperature of the process using hybrid of air cooled and water cooled phases which contains at least one heat exchanger equipped with triple axial fans and at least one zoned water spraying system and at least one water-cooled and air-cooled middle coil and at least one section to prevent freezing of cooling water in the floor section of the equipment and at least one coil in the cooling water freezing prevention section and at least one electric valve for each section to control the water flow of the process and cooling water and also at least one bypass system for each process water cooling zone and at least a fan equipped with an inverter and remote control drive from triple axial fans.

2. The cooling system of claim 1 which is a type of cooling tower based on the heat exchange between the hot fluid and the ambient air as a cooling fluid, as well as heat transfer from the passageways of the hot fluid with cooler fluids such as water or air cooled with the help of water.

3. The cooling system of claim 1 in which the existence of axial fans in the upper part of the finned tubes of the main heat exchanger causes that, if necessary, by turning on each fan and adding these fans to the system, the air flow from the lower part of the heat exchanger to the upper part is increased and if there is a need to increase the cooling efficiency, the following fans are also turned on and help to increase the flow rate of passing air.

4. The cooling system of claim 1 in which the presence of a set of zoned water spray nozzles can spray water in sequence.

5. The cooling system of claim 1 in which the entrance of fine water particles into the air passing through the heat exchanger section through the upward air flow created by the axial fans has causes to increase the cooling efficiency due to the increase in the relative humidity of the passing air and also the drop in the temperature of the air fluid and totally the temperature of the passing fluid will show a further decrease.

6. The cooling system of claim 1 in which the existed nozzles make it possible to add fine water particles to the cooling air and cause evaporation on the surface of the middle layer tubes.

7. The cooling system of claim 1 in which the existing fans on the heat exchanger system can also enter the cooling cycle in order and by increasing the number of fans, it will cause a greater temperature drop in the cooling system.

8. The cooling system of claim 1 in which the existence of a separate network of tubes equipped with a surface heat exchange system in the lower part of the heat exchanger system makes it possible to use as many spray nozzles on the cooling water coil as possible if heat exchange is needed or by directly pouring water on this coil, the heat exchange between the hot fluid and the cooling water is done in the evaporative form.

9. The cooling system of claim 1 in which the middle coil is connected in series to the main tubes of the cooling system.

10. The cooling system of claim 1 in which after passing through the main circuit, the hot fluid continues to pass through this network of pipes, which allows the air flow created by axial fans to evaporate and cool these pipes.

11. The cooling system of claim 1 in which the existence of a water collecting basin provides the possibility for the used water to drawn down and collect in this basin.

12. The cooling system of claim 1 in which the heat exchanging system in the lower basin of the equipment will increase the cooling efficiency and further decrease the temperature of the passing fluid.

13. The cooling system of claim 1 in which each of the elements in the said cooling tower is equipped with an electric valve to control the flow or non-flow of cooling water.

14. The cooling system of claim 1 in which the presence of thermal sensors, including thermocouples in the processing fluid path as well as the passing air path, provides the possibility that by adjusting the temperature of the cooled processing fluid output on the electronic controller system, the entry of each fan into the circuit, starting the process of the spraying water and humidification of the passing air, entering the water spraying system on the auxiliary cooling coil or passing the fluid flow through the network of cooling pipes on the bottom of the lower basin, respectively and according to the need to increase the cooling efficiency enters the system or exits the system.

15. The cooling system of claim 1 in which the intelligent entry or exit of each element into the circuit minimizes the consumption energy.

16. The cooling system of claim 1 in which water spraying in this device is non-continuous and only when the temperature needs to decrease further, water spraying enters the circuit as a non-permanent auxiliary factor.

17. The cooling system of claim 1 in which heat exchange of the hot fluid inside the closed cycle with the ambient air considered as the first stage of the cooling.

18. The cooling system of claim 1 in which heat exchange between the hot fluid inside the closed cycle with the cooled air by humidification method (adiabatic) considered as the second stage of the cooling.

19. The cooling system of claim 1 in which heat exchange between the hot fluid inside the closed cycle with the surface evaporation of water from the outer wall of the tubes considered as the third stage of the cooling.

20. The cooling system of claim 1 in which heat exchange between the hot fluid inside the closed cycle and the water inside the basin in contact with the outer wall of the submerged pipes in the basin considered as the fourth stage of the cooling.

21. The cooling system of claim 1 in which a network of tubes which transfer the heat from hot fluid to the basin water prevent from the basin water to be freeze in the cold time of the day.

22. The cooling system of claim 1 in which each of the existing water spraying networks in the cooling package is equipped with an automatic electric valve to control water spraying on different zones of the machine.

23. The cooling system of claim 1 in which each of the electromotor of the fans on the device can be turned off and on or remotely controlled.

Description

DESCRIPTION OF THE INVENTION

[0031] The presented invention is a type of cooling tower based on heat exchange between the hot fluid and ambient air as a cooling fluid and also heat transfer from hot fluid passageways to cooler fluids such as water or air cooled with the help of water.

[0032] In this invention, the fluid enters a round trip cycle by entering the tube network and fin tubes of the main heat exchanger (FIG. 1, part 1). The heat in the hot fluid is transferred to the heat transfer tubes, which can generally be made of copper, steel or other metals with high heat transfer coefficient, and with the help of the fin tubes on the main heat exchanger tubes, the cooling process is done. The placement of axial fans (FIG. 1, part 2) in the upper part of the fin tubes of the main heat exchanger ensures, if necessary, that by turning on each of the fans and adding these fans to the air flow system from the lower part of the heat exchanger to the upper part is increased and the collision of passing air with fin tubes of the heat exchanger causes heat transfer from the passage of the fluid and the body of the tubes to the passing air. If there is a need to increase the cooling efficiency the following fans are also turned on and help to increase the air flow rate.

[0033] If the heat exchange does not make the required reduction in the temperature of the passing fluid, in the lower part of the heat exchanger, a set of water spraying nozzles (FIG. 1, part 3) in a zoned manner can spray water and enter the fine particles of water to the air passing through the heat exchanger section due to the upward air flow created by the axial fans, which causes the cooling efficiency to increase due to the increase in the relative humidity of the passing air and also the reduction of the temperature of the air fluid, and in total the temperature of passing fluid shows a further reduction. The spray nozzles in each of the water spray zones have the possibility of adding small particles of water to the cooling air, just like the fans on the heat exchanger system, the water spray nozzles can also enter the cooling cycle and by increasing the number of nozzles, a greater temperature reduction will be observed in the device system. The existence of a separate network of tubes equipped with a surface heat exchange system in the lower part of the heat exchanger system makes it possible to use as many spray nozzles on the cooling water coil as possible if heat exchange is needed or by directly pouring water on this coil, the heat exchange between the hot fluid and the cooling water is done in the form of evaporation. This coil (FIG. 1, part 4) is connected in series to the main tubes of the cooling system. After passing through the main circuit, the hot fluid continues to pass through this network of tubes. The air flow created by the axial fans of the evaporation and cooling process on these tubes also continues the heat exchange of the cooling water with the said coil, and increases the cooling rate as well as increasing the cooling capacity of the system. In the lower part of the device, there is a basin (FIG. 1, part 5) for collecting sprayed water, which allows the water to be drawn down and collected in this basin. The existence of a third network of tubes (FIG. 1, part 6) of the heat exchange system in the lower basin of the mentioned tower will increase the cooling efficiency and subsequently decrease the temperature of the passing fluid.

[0034] Each of the elements in the said cooling tower is equipped with an electric valve to control the passage or non-passage of cooling water (FIG. 1, part 7). The presence of thermal sensors, including thermocouples in the processing fluid path as well as the passing air path, provides the possibility that by adjusting the temperature of the cooled processing fluid output on the electronic controller system, the entry of each fan into the circuit, starting the process of the spraying water and humidification of the passing air, entering the water spraying system on the auxiliary cooling coil or passing the fluid flow through the network of cooling pipes on the bottom of the lower basin, respectively and according to the need to increase the cooling efficiency enters the system or exits the system. The intelligent entry or exit of each element into the circuit minimizes the energy consumption. Also, water spraying in this device is non-continuous and only when the temperature needs to decrease further, water spraying enters the circuit as a non-permanent auxiliary factor. This important point minimizes the amount of water consumption and has much less consumption compared to the existing technologies that use water continuously for the cooling process. In the same conditions of the mentioned invention, with the consumption of generally one tenth of the water consumption of the wet cooling tower, which will have the ability to cool the passing fluid to the same operating temperature as the previous examples of technology. In other words, it can be considered that the present invention is a four-stage hybrid cooling tower device that is based on:

[0035] 1. Heat exchange of the hot fluid inside the closed cycle with the ambient air, as the first stage of cooling;

[0036] 2. Heat exchange between the hot fluid inside the closed cycle with the cooled air by humidification method (adiabatic) as the second stage of cooling;

[0037] 3. Heat exchange between the hot fluid inside the closed cycle with the surface evaporation of water from the outer wall of the tubes, as the third stage of cooling;

[0038] 4. Heat exchange between the hot fluid inside the closed cycle and the water inside the basin in contact with the outer wall of the submerged pipes in the basin

First Stage of Cooling

[0039] In this invention, the fluid initially enters the fin tube bundle. By entering the fluid to the fin tube bundle, it enters a circulation cycle (FIG. 3, part 1). The heat is transferred from the hot fluid to the tubes, and with the help of the existing fins on the tubes, the process of cooling the fluid and transferring heat to the air is done. The presence of axial fans (FIG. 3, part 2) in the upper part of the fin tube bundle ensures, if necessary, that by turning on each of the fans and adding these fans to the system, the flow rate of air passing from the lower part of the heat exchanger to the upper part to be increased and the contact of passing air with fin tubes of the heat exchanger causes heat transfer from the body of the tubes to the passing air. If the ambient air temperature increases, the following fans are also turned on and help to increase the air flow rate.

Second Stage of Cooling

[0040] If the heat exchange does not make the required reduction in the temperature of the passing fluid, in the lower part of the fin tube bundle, there is a set of water spraying nozzles (FIG. 3, part 3) in a zoned manner that can proceed to spray the water on filling packing (FIG. 3, part 4) and the packing level of each zone becomes wet. The upward air induced by the fans passes over the wet packing and the relative humidity of the air increases in contact with the water surface and the air temperature decreases.

[0041] By increasing the temperature of ambient air, the water spraying network of the next zones will start spraying water on the filling packing of that zone and cause a larger volume of air to cool down and heat exchange will increase between the surface of the finned tubes and the air. Therefore, by increasing the number of water spraying nozzles, the more temperature reduction happens in the system of the device.

Third Stage of Cooling

[0042] If the ambient air continues to increase in such a way that the cooling of the second stage does not cool enough the hot fluid inside the closed cycle, the spraying network of the fourth zone is activated and makes the surface of the evaporative bundle wet. By activating the spraying nozzles of this zone, the outer surface tubes of this network become wet and therefore the surface evaporation of water occurs on the tubes. Calculations related to heat transfer in thin film surface evaporation show that the heat transfer coefficient increases significantly. With the help of this feature, the desired temperature reduction in the hot fluid is achieved.

[0043] This bundle is connected to the finned tube bundle in series. The hot fluid will pass from this bundle of tubes after passing through the main circuit. Heat exchange due to the flow of wet and cool air created by fans and water spraying system in the zone of the main heat exchanger, along with the heat exchange caused by the process of surface evaporation from the wet pipes in the zone of the third stage tube network increase the amount of cooling and rise the cooling capacity of the system.

Fourth Stage of Cooling

[0044] In the lower part of the device, there is a water storage basin (FIG. 3, part 5) which makes it possible for the cycle water to drip down again and collect in this basin. The existence of the third bundle of tubes (FIG. 3, part 6) of the heat exchange system in the basement of the mentioned tower will increase the efficiency of cooling and furthermore reduce the temperature of passing fluid.

[0045] The significant feature of this network of tubes is that the heat transfer from hot fluid to the basin water prevents the basin water from freezing in the cold time of the day (Anti freezing).

[0046] Each of the existing water spraying networks in the cooling package is equipped with an automatic electric valve to control water spraying on different zones of the machine. Also, each of the electromotors of the fans on the device can be turned off and on or remotely controlled. By using these control facilities, the cooling device is controlled in different climatic conditions so that the required heat exchange capacity of the device is provided with the lowest amount of water and energy consumption.

[0047] The presence of temperature sensors, including thermocouples in the fluid path as well as the passing air path makes it possible to regulate the temperature of the outgoing cooled fluid on the electronic controller system and the entry of each of the fans into the circuit, starting the process of spraying water and humidifying the passing air, entrance of the water spraying system on the evaporative bundle or the passage of the flow of the fluid through the antifreeze bundle of the water storage basin and by different climatic conditions enters to the system or exit from it. The intelligent entry or exit of each of the elements into the circuit minimizes the amount of water and energy consumption. Also, the water spraying in this device is not continuous and it is activated only when the ambient air is warmer and the previous cooling stage of the device is not required for cooling by the process, and the water spraying enters the circuit as a non-permanent auxiliary factor. This important thing will minimize the amount of water consumption and consume much less water than the existing technologies which are using water continuously for the cooling process.

[0048] The device works in different climatic conditions as follows:

[0049] The finned tube bundle of the device at temperatures lower than T0 is responsible for providing the heat exchange capacity of the entire device. In this condition, the amount of water consumption for cooling is zero and the device works completely dry without water consumption.

[0050] By increasing the air temperature until T1, the electric automatic valve opens on the water spraying network of adiabatic zone 1 and this zone becomes wet. So about one third of the passing air from the device becomes wet and cool (FIG. 7, part 1). In the air mixing chamber, this cool air mixes with the passing air of other zones and an air with monotonous temperature lower than T0 enters the finned tube bundle. Under these conditions, the finned tube bundle is again able to make the required amount of hot fluid cool.

[0051] By increasing the air temperature until T2, the electric automatic valve opens on the water spraying network of adiabatic zone 2 and further to adiabatic zone 1, zone 2 becomes wet too. So about two thirds of the passing air from the device becomes wet and cool. In the air mixing chamber, this cool air mixes with passing air of other zones and air with monotonous temperature lower than T0 enters the finned tube bundle. Under these conditions, the finned tube bundle is again able to make the required amount of hot fluid cool.

[0052] By increasing the air temperature until T3, the electric automatic valve opens on the water spraying network of adiabatic zone 3 and further to adiabatic zone 1 and 2, the zone 3 becomes wet too. So the whole passing air from the device becomes wet and cool. In the air mixing chamber, this cool air mixes with passing air of other zones and an air with monotonous temperature lower than T0 enters the finned tube bundle. Under this condition, the finned tube bundle again is able to make the hot fluid cool in the required amount. Generally the increase in the number of adiabatic zones causes a reduction in the consumption of water and an increase in the consumption of energy.

[0053] If the air temperature continues to rise, it is no longer possible to obtain cool air with a temperature lower than T0 by adiabatic method, or the volume of air required to pass through the device is calculated so high that the amount of water required to cool this volume of air will be very large. In this situation, the automatic electric valve on the spraying network of zone 4 is open and the surface of the evaporative bundle is wet, and the surface evaporation of the thin film occurs on the surface of the evaporative bundle. The heat exchange resulting from the surface evaporation of the thin film in this bundle provides a small part of the temperature reduction of the hot fluid. This amount of temperature reduction makes the finned tube bundle able to provide the rest of the required temperature reduction of the hot fluid.

[0054] Cooling systems that do not have an evaporative bundle are not able to provide heat transfer in very hot climatic conditions. Also, these systems are not able to cool the hot fluid close to the wet bulb temperature. By adding the evaporative bundle, the cooling system is able to meet the consumer's demand and perform under these conditions, providing the required cooling.

[0055] The final part of the heat exchange takes place in the antifreeze bundle. In a situation where the ambient air temperature becomes very cold and there is a possibility of freezing the water in the basin, the warm fluid passes through the antifreeze bundle and prevents the freezing of water in the basin. The required heat transfer to prevent freezing of the storage water basin provides part of the reduction in the temperature of the hot fluid and reduces the cooling load of the finned tube bundle and in the same ratio will result in a reduction in the energy consumption of the device.

Axial Fan

[0056] The required air flow is provided by the fan installed on the device. According to the structure and relatively high static pressure required by the device, this fan must be of axial type and also must be installed at the outlet or inlet of the device. Since the installation of the fan in the air intake causes the device to occupy a larger zone (Footprint Zone), it is recommended to use an induced fan at the outlet. The number and size of the fan is determined according to the dimensions of the device and the amount of air required by the device. The material of the fan can be steel, aluminum or plastic (FRP).

Electro-Motor

[0057] Required drives for the fans and pumps of the hybrid cooling device are provided by the electromotors.

Fan Stack

[0058] The air coming out of the device is hot and it should not be possible for it to re-enter the device through the air intake. The fan stack helps in this matter and causes hot air to be thrown to a higher distance. Another function of the fan stack is to increase the flow of air through the device in a natural way (natural draft).

Finned Tube Bundle

[0059] The finned tube bundle is the main heat exchanger of the device and it is in service during the whole time of operation of the cooling device. This bundle consists of inlet header box, outlet header box and tubes whose outer surface is covered with aluminum fins and provides the required heat exchange duty.

Drift Eliminator

[0060] By spraying water on adiabatic packing with adiabatic water spraying networks, there is the possibility for the water droplets to exist in passing air. Since these drops have no effect on reducing the water temperature of the closed cycle, it is considered as the water waste and reduces the efficiency of the device. Installing a drift eliminator before the finned tube bundle prevents water droplets from escaping out of the device. The water droplets stick to the mist eliminator wall and may evaporate and cause a slight decrease in the temperature of the air entering the finned tube bundle, or may fall down in the form of larger droplets and enter the adiabatic packing. The mist eliminator is usually made of plastic.

Adiabatic Zone 1 Water Spray Cycle

[0061] In order to reduce and optimize the water consumption of the device, the air temperature range in which the device performs in adiabatic mode is divided into three almost equal ranges. As the air temperature increases, the device enters the adiabatic operating mode from the dry operating mode. The adiabatic zone 1 water spray network has a control valve at the entrance, a tube network and a sufficient number of spray nozzles. Upon entering the first adiabatic mode, the control system of the device orders the opening of the control valve of this network and sprays water on the adiabatic packing relevant to this zone. In this way, the adiabatic packing surfaces of this zone get wet and one third of the air passing through the device gets wet and cooled. Reducing the temperature of this amount of air and mixing it in the mixing chamber causes the cool air to enter monotonously into the finned tube bundle.

Adiabatic Zone 2 Water Spray Cycle

[0062] If the air temperature continues to increase and the amount of air temperature reduction during the operation of the adiabatic zone 1 spraying cycle is not enough, the adiabatic zone 2 water spraying cycle is activated and causes the temperature of the air entering the finned tube bundle to decrease. The activation and deactivation of this cycle is similar to the adiabatic zone 1 cycle.

Adiabatic Zone 3 Water Spray Cycle

[0063] If the air temperature continues to increase and the amount of air temperature reduction during the operation of the adiabatic zone 2 spraying cycle is not enough, the adiabatic zone 3 water spraying cycle is activated and causes a decrease in the temperature of the air entering the finned tube bundle. The activation and deactivation of this cycle is similar to the adiabatic zone 1 cycle.

Evaporator Zone Water Spray Cycle

[0064] When the control system of the device detects that the evaporating bundle section enters the service, the control valve installed at the entrance of the water spraying cycle of this zone is opened and the surface of the evaporating bundle is wet by activating the spray nozzles of this zone and surface evaporation of this zone starts. When the control system of the device detects that there is no need for the evaporation bundle to be active anymore, the command to close the control valve of this network and stop spraying water is issued.

Air Mixing Chamber

[0065] After the air exits the adiabatic packing area and the air temperature in direct contact with the water is reduced, it is necessary to make the air temperature uniform and steady by passing through the mixing chamber in order to exchange heat in the finned tube bundle. Sizing this chamber less than the required amount will cause incomplete air mixing, and sizing it more than the required amount will cause an unnecessary increase in the height and weight of the device.

Adiabatic Packing

[0066] In order to reduce the air temperature with the moisturizing method, it is required that the contact time of air with water is calculated correctly; otherwise the adiabatic is not performed completely and the temperature of the air entering the device is not reduced to the required amount and there will be a disturbance in the operation of the device. In order to ensure sufficient contact time, the appropriate type and volume of the packing should be calculated and selected. If the contact time is less than the appropriate amount, the temperature of the incoming air will not decrease sufficiently, and if it is more than the appropriate amount, the air pressure will drop too much and the energy consumption of the device will increase.

Evaporating Bundle

[0067] This bundle performs the second stage in the operation of cooling the processing water in the closed cycle. If the operation of the device in adiabatic mode does not achieve sufficient cooling load, the load will be provided by the evaporating bundle. The evaporating bundle is only used in the condition of maximum ambient air temperature, so it is in service for a short period of time per year and is possible to bypass automatically or manually for a long period of time, although this is not recommended. This section has an independent water spraying network and the start and end of its operation is determined by the control system. Generally, the provision of the cooling load through evaporation leads to higher water consumption than the adiabatic method; however, the hybrid cooling device that is the subject of this invention is designed in such a way that the cooling load resulting from the evaporation bundle reduces the water and electricity consumption of the whole device (compared to providing the same cooling load by the adiabatic part of the device). Since this bundle is in direct contact with the evaporating water, it is subject to severe corrosion; in order to prevent this, it must be covered with a suitable coating such as galvanized or stainless steel. The phenomenon of thin film surface evaporation causes a significant increase in the heat transfer coefficient from the outer wall of the bundle, and in this way, the heat transfer surface of the evaporative bundle can be greatly reduced; on the other hand, the linear velocity of the closed cycle water inside increases. The bundle increases both the drop in water pressure and the erosion of the inner surface of the evaporation bundle tubes. Therefore, the bundle should be designed in such a way that in addition to providing the required cooling load, internal erosion and external corrosion are prevented.

Intake Air Uniformity Chamber

[0068] Between the air intake section and the adiabatic packing and evaporation bundle sections, there is an intake air uniformity chamber. This space causes the incoming air to enter the next sections with upward uniform linear velocity. Failure to create such uniformity in the air flow will reduce the efficiency of the device and increase water and energy consumption.

Air Intake

[0069] Regardless of under what conditions and in what mode the device works, air flow is always needed. The required air is sucked from the opening located on the walls and enters the device. The dimensions, location and design of this valve are very important in guiding the air flow and drop in air pressure inside the device; improper design of this part will reduce the efficiency and increase the power consumption of the device. Openings must have the ability for a filter to be installed to remove dust from the air before it enters the device.

Water Storage Basin

[0070] This basin is installed to store the water required for the open cycle of the device. The water used in all parts of the device is poured into this basin. The volume of water stored in this basin should be selected in such a way that in case of cutoff the make-up water, it will supply the water consumed by the device for a suitable period of time without disrupting the device's performance. The body of the basin can be made of steel or fiberglass. Considering that the make-up water has hardness and salts and the water inside the basin is consumed through evaporation, the hardness of the water inside the basin is always increasing and it is necessary to monitor and control the hardness of this water. If the hardness of the water exceeds the permissible limit, the hardness measuring devices installed on the basin send a signal to the control system, which opens the blow down device, and part of water in the basin is discharged and replaced by make-up water. The design of the basin should be such that the water which is falling from its upper parts does not increase the level of noise in the device. The basin can be designed as a single section or multiple sections. In case of a multi-part design, the water in all parts must be connected so that the passage of water flow between the parts is possible.

Anti-Freezing Bundle

[0071] This part of the device has two main functions. The main function of the bundle is to prevent the water in the storage basin from freezing in cold weather. When the ambient air has a lower temperature than that of freezing water, there is a possibility of freezing in the water inside the basin. Under these conditions, all or part of the closed cycle hot water enters this bundle, and by transferring heat from the hot water to the basin water, it prevents freezing. The side effects of the bundle include increasing the efficiency of the device, since part of the cooling load of the whole device is carried out by this part and it reduces the cooling load of other parts of the device. Considering that the transfer of heat in other parts of the device requires energy consumption, providing the cooling load by the antifreeze bundle reduces energy consumption. This bundle performs the third stage of the water cooling operation of the closed cycle process.

Control Panel

[0072] The device has a specially-made control panel that includes all the control measures of the device. Considering that the device is pre-made (Skid Mounted) and should be able to be installed and set up quickly and easily, the control system of the device should meet all functional needs. The control system is designed in such a way that in the absence of any controlling infrastructure in the factory, it can guide and control the device in the best way possible. Although this panel is designed to control a cooling device, its structure can be controlled synchronously with adjacent and parallel hybrid cooling devices, and the operational sequence of each of the hybrid cooling devices and components and the main parts of them can be easily adjusted and programmed by the device operator.

Power Panel

[0073] The main power cable is connected to the main electrical panel and is distributed to all the electrical equipment of the device. In order to exchange signals, this panel is also connected to the control board.

Cover Casing

[0074] Considering that open cycle air and water flow in the device and the movement path of these two fluids is very important, the outer cover plays a very important role in the device's performance. In addition to separating the internal environment from the external environment of the device to guide air and water fluids, the outer cover also accounts for the appearance of the device and should be designed in such a way that is appealing.

Main Structure

[0075] All parts of the device are held by the main structure. The main structure has several columns and each of these columns must be placed on the foundation so that the total weight of the device is transferred to the foundation.

Internal Supports

[0076] All parts and equipment of the device are supported by internal supports. Supports are connected to the device body and chassis with the help of screws and welding.

Open Cycle Circulation Pump

[0077] The water required for adiabatic sprinkler networks and evaporation bundles is provided by an open cycle water pump. The inlet of this pump is connected to the water storage basin and transfers the water from the basin to the water spraying networks. This pump can be centrifugal.

DESCRIPTION OF DRAWINGS

[0078] FIG. 1 shows the side view of the device.

[0079] FIG. 2 includes the following sections: [0080] 1) Axial Fan [0081] 2) Electro-motor [0082] 3) Fan Stack [0083] 4) Fin-Tube Bundle [0084] 5) Mist Eliminator [0085] 6) Adiabatic Zone 1 Water Spray Cycle [0086] 7) Adiabatic Zone 2 Water Spray Cycle [0087] 8) Adiabatic Zone 3 Water Spray Cycle [0088] 9) Evaporator Zone Water Spray Cycle [0089] 10) Air Mixing Chamber [0090] 11) Adiabatic Packing [0091] 12) Evaporating Bundle [0092] 13) Air Uniform Chamber [0093] 14) Air Intake [0094] 15) Basin [0095] 16) Anti-Freezing Bundle [0096] 17) Control Panel [0097] 18) Power Panel [0098] 19) Cover Casing [0099] 20) Main Structure [0100] 21) Internal Supports [0101] 22) Open Cycle Circulation Pump

[0102] FIG. 3 which shows the side view of the device.

[0103] FIG. 4 which shows the upper view of the heat exchanger.

[0104] FIG. 5 which shows the side view of the water nozzle.

[0105] FIG. 6 which shows the exploded view of the device.

[0106] FIG. 7 which shows the view of different zones of water spray.

[0107] FIG. 8 which shows the amount of water consumption in different zones.

[0108] FIG. 9 which shows the amount of consumption in the adiabatic zones.

[0109] FIG. 10 which shows the amount of saved water in the mentioned device.

[0110] FIG. 11 which shows the amount of water consumption in different zones.

[0111] FIG. 12 which shows the amount of water consumption in the adiabatic zones.

[0112] FIG. 13 which shows the amount of saved water in different months and by percentage.

[0113] FIG. 14 which shows the amount of saved water in different months of the year by cubic meter.