Buffered balanced type mobile primary-secondary air conditioner system

Abstract

A buffered balanced type mobile primary-secondary air conditioner system wherein three working media are used in primary-secondary air conditioner system. The first working medium is a compressor refrigeration working medium, the second working medium is an energy storage and heat transfer working medium shared by the primary machine and the secondary machine, and the third working medium is a secondary machine energy storage and heat transfer working medium. This scheme establishes a buffer balance zone between the primary machine and the secondary machine to store the second working medium.

Claims

1. A mobile primary-secondary air conditioner system, comprising: a fixed or mobile primary machine; and at least one mobile secondary machine; wherein: the primary machine comprises: a compressor, a condenser, a throttling device, an evaporator, a pipeline that connects the compressor, the condenser, the throttling device, and the evaporator, and is configured to circulate a first working medium, an energy storage buffer box that is a closed container, the evaporator being immersed in the energy storage buffer box, the energy storage buffer box being configured to hold a second working medium in isolation from the first working medium, and a plurality of primary machine interfaces; and each secondary machine of the at least one mobile secondary machine comprises: a liquid storage tank inside the secondary machine, an energy storage heat exchanger immersed in the liquid storage tank, a secondary machine fan inside the secondary machine, a secondary machine heat exchanger inside the secondary machine and outside the liquid storage tank, and a delivery pump inside the secondary machine; wherein: the liquid storage tank is a closed container and is configured to hold a third working medium in isolation from the first working medium and the second working medium; the secondary machine heat exchanger is connected to the third working medium in the liquid storage tank through the delivery pump and a connecting pipe, and the secondary machine fan acts on the secondary machine heat exchanger inside the secondary machine; a detachable connector is arranged between the primary machine and a respective one of the at least one mobile secondary machine; each detachable connector comprises (i) a primary machine interface among the plurality of primary machine interfaces and (ii) a secondary machine interface, and each primary machine interface comprises a primary machine output joint and a primary machine input joint; the second working medium in the energy storage buffer box is connected to the primary machine output joint through a water pump and a conduit, and the primary machine input joint is connected with the energy storage buffer box through a conduit; the secondary machine interface comprises a secondary machine output joint and a secondary machine input joint; the secondary machine input joint is connected to one end of the energy storage heat exchanger in the secondary machine through a conduit, and the other end of the energy storage heat exchanger is connected to the secondary machine output joint through a conduit; when the secondary machine is connected to the primary machine through the detachable connector, the primary machine output joint is docked and connected to the secondary machine input joint, while the secondary machine output joint is docked and connected to the primary machine input joint, and the second working medium flows between the energy storage buffer box in the primary machine and the energy storage heat exchanger that is immersed in the liquid storage tank in the secondary machine; and the secondary machine is structured such that, when the secondary machine is disconnected from the primary machine through the detachable connector, the secondary machine is a mobile air conditioner that performs air conditioning without being connected to the primary machine.

2. The mobile primary-secondary air conditioner system according to claim 1, wherein: the first working medium is a compressor refrigeration working medium, the second working medium is an energy storage and heat transfer working medium shared by the primary machine and the secondary machine, the third working medium is an energy storage and heat transfer working medium of the secondary machine, and the freezing point temperature of the second working medium is lower than the freezing point temperature of the third working medium.

3. The mobile primary-secondary air conditioner system according to claim 1, wherein each primary machine interface forms a parallel connection with the other primary machine interfaces.

4. The mobile primary-secondary air conditioner system according to claim 1, wherein: the primary machine is equipped with a primary machine heat exchanger and a primary machine fan; the second working medium in the energy storage buffer box is connected to one end of the primary machine heat exchanger through the water pump and the conduit, and the other end of the primary machine heat exchanger is connected to the second working medium in the energy storage buffer box through another conduit; and the primary machine fan acts on the primary machine heat exchanger.

5. The mobile primary-secondary air conditioner system according to claim 1, wherein: the primary machine is equipped with a four-way reversing valve, and the compressor in the primary machine is connected to the condenser and evaporator through the four-way reversing valve, forming a dual purpose refrigeration system for heating and cooling.

6. The mobile primary-secondary air conditioner system according to claim 1, wherein: the energy storage buffer box is equipped with an icing zone and a non-icing zone, and the icing zone is connected to the non-icing zone, the evaporator is placed in the icing zone, and the primary machine output joint and primary machine input joint are connected to the non-icing zone.

7. The mobile primary-secondary air conditioner system according to claim 1, wherein: the liquid storage tank is provided with an icing zone and a non-icing zone, and the icing zone is connected to the non-icing zone, the energy storage heat exchanger is arranged in the icing zone, and the secondary machine heat exchanger is connected to the non-icing zone.

8. The mobile primary-secondary air conditioner system according to claim 1, wherein the primary-secondary air conditioner system is operable in a state in which one or more of the primary machine interfaces has no secondary machine connected thereto.

Description

DESCRIPTION OF FIGURES

(1) FIG. 1 is a structural schematic diagram of embodiment of this utility model;

(2) FIG. 2 is a structural schematic of secondary machine in FIG. 1 of embodiment of this utility model.

(3) In above figures: 1. primary machine, 2. secondary machine; 3. compressor; 4. condenser; 5. throttling device; 6. evaporator, 7. four-way reversing valve; 8. drying filter; 9. energy storage buffer box; 10. water pump; 11. liquid storage tank; 12. condenser fan; 13. primary machine fan; 14. first working medium; 15. second working medium; 16. third working medium; 17. primary in machine heat exchanger; 18. energy storage heat exchanger, 19. secondary machine fan; 20. secondary machine heat exchanger; 21. pipeline; 22. detachable connector; 23. primary machine interface; 24. secondary machine interface; 25. connecting pipe; 26. delivery pump.

MODE OF CARRYING OUT THE INVENTION OR UTILITY MODEL

(4) The following is a further description of the utility model in conjunction with the accompanying drawings and embodiments:

Embodiment: A Buffered Balanced Type Mobile Primary-Secondary Air Conditioner System

(5) As shown in FIGS. 1-2, the buffered balanced type mobile primary-secondary air conditioner system, consisting of a fixed or mobile primary machine 1 and at least one mobile secondary machine 2 (see FIG. 1); The primary machine 1 is a dual purpose refrigeration system for heating and cooling, composed of compressor 3, four-way reversing valve 7, drying filter 8, condenser 4, condenser fan 12, throttling device 5, and evaporator 6 connected through pipeline 21 according to the relationship shown in the left part of FIG. 1 (as the connection relationship between the components of the dual purpose refrigeration system is a prior art, and the left part of FIG. 1 is clearly illustrated, it will not be described in detail here). In working state, the first working medium 14 is added to the pipeline 21 of the primary machine 1 (see FIG. 1). In this embodiment, the first working medium 14 may use commonly used refrigerants in existing air conditioners.

(6) In order to better illustrate the content of this embodiment; the refrigeration cycle is now used as the basis for explanation. In this embodiment, an energy storage buffer box 9 (see FIG. 1) is provided for evaporator 6 in the primary machine 1. The energy storage buffer box 9 is a closed container, and the evaporator 6 is immersed in the energy storage buffer box 9. In working state, a second working medium 15 is added to the energy storage buffer box 9 (see FIG. 1). In this embodiment, the second working medium 15 uses automotive antifreeze (such as ethylene glycol).

(7) The secondary machine 2 is mainly composed of a liquid storage tank 11, an energy storage heat exchanger 18, a secondary machine fan 19, a secondary machine heat exchanger 20, and a delivery pump 26 (see FIG. 2). The liquid storage tank 11 is a closed container, and the energy storage heat exchanger 18 is immersed in the liquid storage tank 11, and a third working medium 16 is added to the liquid storage tank 11 in working state (see FIG. 2). In this embodiment, the third working medium 16 uses water or ethylene glycol. The secondary machine heat exchanger 20 is connected to the third working medium in the storage tank 11 through a delivery pump 26 and a connecting pipe 25, and the secondary machine fan 19 acts on the secondary machine heat exchanger 20 (see FIG. 2).

(8) A detachable connector 22 is arranged between the primary machine 1 and the secondary machine 2 (see FIG. 1). The detachable connector 22 consists of a primary interface 23 (see FIG. 1) and a secondary interface 24 (see FIG. 2). The primary interface 23 is composed of a primary output joint and a primary input joint (not labeled, but clearly visible in FIG. 1). The second working medium 15 in the energy storage buffer box 9 is connected to the primary output joint through a water pump 10 and a conduit, and the primary input joint is connected to the energy storage buffer box 9 through a conduit (see FIG. 1) The secondary machine interface 24 is composed of a secondary machine output joint and a secondary machine input joint (see FIG. 2). The secondary machine input joint is connected to one end of the energy storage heat exchanger 18 in secondary machine 2 through a conduit, and the other end of the energy storage heat exchanger 18 is connected to the secondary machine output joint through a conduit (see FIG. 2). In the state where the secondary machine 2 is connected to the primary machine 1 through the detachable connector 22, the primary machine output joint is docked and connected to the secondary machine input joint, while the secondary machine output joint is docked and connected to the primary machine input joint. (see FIG. 1).

(9) Regarding the detachable connector 22 between primary machine 1 and secondary machine 2, existing technology may be used for detachable pipeline connectors, or special detachable pipeline connectors can be specially designed. This is known to the person having ordinary skill in the art.

(10) Three mutually isolated working media are used in the primary-secondary air conditioner system of the utility model. The first working medium 14 is a compressor refrigeration working medium, the second working medium 15 is an energy storage and heat transfer working medium shared by the primary machine 1 and the secondary machine 2 (usually 12 to 25 degrees Celsius, such as automotive antifreeze), and the third working medium 16 is an energy storage and heat transfer working medium of the secondary machine 2, such as water. The freezing point temperature of the second working medium 15 is generally lower than that of the third working medium 16. However, the second and third working media may also use the same medium, such as water.

(11) In order to achieve the function that a primary machine 1 can match multiple secondary machines 2, a set of primary machine interfaces 23 can be equipped in the primary machine 1. Each primary machine interface 23 is connected to the second working medium 15 in the energy storage buffer box 9, and each primary machine interface 23 forms a parallel connection with each other. The primary machine 1 shown in FIG. 1 is equipped with four primary machine interfaces 23.

(12) In this embodiment, the primary machine 1 is designed according to the structure of a fixed air conditioner, which includes compressor 3, condenser 4, condenser fan 12, throttling device 5, four-way reversing valve 7, and drying filter 8 installed outdoors to form an outdoor unit. Evaporator 6 and energy storage buffer box 9 can be installed outdoors or indoors. In order to directly have the function of a fixed air conditioner, primary machine 1 can be equipped with a primary machine heat exchanger 17 and a primary machine fan 13 (see FIG. 1). The second working medium 15 in the energy storage buffer box 9 is connected to one end of the primary machine heat exchanger 17 through a water pump 10 and a conduit, and the other end of the primary machine heat exchanger 17 is connected to the second working medium 15 in the energy storage buffer box 9 through a conduit. The primary machine fan 13 acts on the primary machine heat exchanger 17 (see FIG. 1). For this embodiment, if the primary machine 1 is not equipped with a primary machine heat exchanger 17 and a primary machine fan 13, then the primary machine 1 will be equivalent to a charger for the secondary machine 2, without the function of supplying cold or warm air.

(13) In this embodiment, in order to maintain a state where the primary machine 1 can always charge cold or warm to the secondary machine 2, the second working medium 15 in the energy storage buffer box 9 cannot be completely frozen. Therefore, there may be an icing zone and a non-icing zone arranged inside the energy storage buffer box 9, with icing zone connected to non-icing zone. The evaporator 6 is placed in the icing zone, and the primary machine output joint and primary machine input joint are connected to the non-icing zone. In addition, a partition board may be arranged between the icing and non-icing zones to achieve better results.

(14) In this embodiment, In order to keep the secondary machine always in a state where it is possible to provide cold or warm charging to the secondary machine heat exchanger 20, the third working medium 16 in the liquid storage tank 11 cannot be completely frozen. So there may be an icing zone and a non-icing zone arranged inside the liquid storage tank 11, with icing zone connected to non-icing zone. The energy storage heat exchanger 18 is placed in the icing zone, and the secondary machine heat exchanger 20 is connected to the non-icing zone. In addition, a partition board may be arranged between the icing and non-icing zones to achieve better results.

(15) Taking the refrigeration working cycle as an example, the working process of this embodiment is described as follows.

(16) 1. Refrigeration of Primary Machine 1

(17) As shown in FIG. 1, after the primary machine 1 is turned on, it switches to refrigeration mode. At this time, compressor 3 works to change the first working medium 14 from low-temperature and low-pressure gas to high-temperature and high-pressure gas, and delivers it to condenser 4. The condenser 4 releases heat to the outdoor air through the condenser fan 12, changing the first working medium 14 from a gaseous state to a liquid state and delivering it to throttling device 5. Throttling device 5 forces the first working medium 14 to decrease pressure and become a low-temperature and low-pressure liquid through throttling, and it is transported to evaporator 6, which absorbs cooling capacity to change the first working medium 14 from a liquid state to a gaseous state, while forming a low-temperature and low-pressure gas, which is then sent back to compressor 3. Due to the placement of evaporator 6 in the second working medium 15 of energy storage buffer box 9, evaporator 6 absorbs cooling capacity and causes the temperature of the second working medium 15 to decrease until the second working medium 15 in the icing zone solidifies and freezes.

(18) 2. Cooling and Operation of Secondary Machine 2

(19) As shown in FIGS. 1 and 2, when secondary machine 2 needs to be cooled, dock and connect the secondary machine input joint on secondary machine 2 with the primary machine output joint, and at the same time, dock and connect the secondary machine output joint with the primary machine input joint. Start water pump 10, and the second working medium 15 in the energy storage buffer box 9 flows along the conduit through the energy storage heat exchanger 18 and returns to the energy storage buffer box 9. At this point, the second working medium 15 exchanges beat with the third working medium 16 through the energy storage heat exchanger 18, forcing the temperature of the third working medium 16 to decrease. When the freezing point temperature of the second working medium 15 is lower than that of the third working medium 16, the third working medium 16 first partially freezes and stores cooling capacity. After the cooling is completed, unplug the detachable connector 22, and at this time, the secondary machine 2 can be used as a mobile energy storage air conditioner. After the cooling storage of secondary machine 2 is consumed, the secondary machine 2 can be cooled again in the above way, and used in a cyclic manner. Since a set of primary machine interface 23 is simultaneously equipped on primary machine 1, each primary machine interface 23 is connected in parallel with the second working medium 15 in the energy storage buffer box 9. Therefore, one primary machine 1 can simultaneously connect multiple secondary machines 2 for cooling

(20) 3. Directly Cold Air Supplies from Primary Machine 1

(21) As shown in FIG. 1, turn on the water pump 10, and the second working medium 15 exchanges heat with the primary machine heat exchanger 17 through the water pump 10 and conduit. At this time, turn on the primary machine fan 13 to send out cold air, which can be directly used as an indoor unit. From this, it can be seen that the primary machine can independently empower the secondary machine as a charger, and can be used as an air conditioner by adding the primary machine fan 13 and the primary machine heat exchanger 17 at the time of empowerment or after separation from the secondary machine.

(22) The following is an explanation of other implementations and structural changes of this utility model:

(23) 1. In the above embodiment, primary machine 1 is a dual purpose refrigeration system for heating and cooling. But this utility model is not limited to this, and the primary machine 1 can also be a single cooling refrigeration system. This is easy for the person having ordinary skill in the art to understand.

(24) 2. In the above embodiment, the number of energy storage buffer boxes 9 is one. However, this utility model is not limited to this. As for one primary machine 1, the energy storage buffer box 9 can be multiple. But each energy storage buffer box 9 is equipped with evaporator 6. The possible way to achieve this is to divide evaporator 6 into multiple small evaporators, and then connect them in a series-in-parallel way to form a whole. Each small evaporator can be placed in an energy storage buffer box 9. This is easy for the person having ordinary skill in the art to understand and accept.

(25) 3. In the above embodiment, the primary machine 1 shown in FIG. 1 is equipped with four primary machine interfaces 23. However, this utility model is not limited to this, and this quantity can be determined according to actual needs. For example, it can be equipped with two, three, five, or even more.

(26) 4. In the above embodiment, primary machine 1 is used as a fixed unit, which can be decomposed into two parts: outdoor unit and indoor unit, both of which have been fixed and installed relative to the building. However, this utility model is not limited to this, and the primary machine 1 can also be designed as an energy storage mobile air conditioner. Both primary machine 1 and secondary machine 2 can be moved. In this utility model, the mobile primary-secondary air conditioner system refers to an air conditioner system composed of a mobile or fixed primary machine and at least one secondary machine, and mobile refers to the mobility of the air conditioner system in use. This is also relative to fixed air conditioner.

(27) The above embodiments are only intended to illustrate the technical concept and characteristics of the present utility model, and their purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, without limiting the scope of protection of the present utility model. Any equivalent changes or modifications made based on the spiritual essence of this utility model should be covered within the scope of protection of this utility model.