Heat radiator and turbo fracturing unit comprising the same

Abstract

The present disclosure relates to a heat radiator and a turbo fracturing unit comprising the same. The heat radiator includes: a cabin; a heat radiation core disposed at the inlet and configured to allow a gas to pass therethrough; a gas guide device disposed at the outlet and configured to suction the air within the cabin to the outlet; and noise reduction core disposed within the cabin, which is of a structure progressively converging to the outlet. The heat radiator is configured to enable the gas to enter the cabin via the inlet, then sequentially pass through the heat radiation core, a surface of the noise reduction core and the gas guide device, and finally be discharged out of the cabin. The heat radiator according to the present disclosure is a suction-type heat radiator which can regulate the speed of the gas guide device based on the temperature of the gas at the inlet, thereby avoiding energy waste and unnecessary noise. The smooth curved surface of the noise reduction core can reduce noise without affecting the gas flow.

Claims

1. A heat radiator, characterized in that the heat radiator (100) comprises: a cabin which is provided thereon with an air outlet and an air inlet; a heat radiation core (4) disposed at the air inlet allowing air to pass therethrough; an air displacement device (6) disposed at the air outlet for suctioning air within the cabin to the air outlet; and a noise reduction core (5) disposed within the cabin, the noise reduction core being of a structure progressively converging to the air outlet; wherein the heat radiator is configured to enable the air to enter the cabin via the air inlet, then sequentially pass through the heat radiation core, flow along a surface of the noise reduction core and the air displacement device, and finally be discharged out of the cabin.

2. The heat radiator according to claim 1, characterized in that the noise reduction core (5) comprises: a core substrate (51) which is of a hollow tower structure; a punching outer structure (52) which is a hollow tower structure opening at a bottom, the punching outer structure being sleeved outside the core substrate; and a noise reduction material which is filled between the core substrate and the punching outer structure.

3. The heat radiator according to claim 1, characterized in that the heat radiator is used for cooling a target fluid, wherein the heat radiation core is provided herein with a channel for allowing the target fluid to flow therethrough, and the heat radiation core is configured to enable heat exchange between the air and the target fluid within the channel when the air flows through the heat radiation core.

4. The heat radiator according to claim 3, characterized in that the heat radiator further comprises: a temperature sensor (16) which is disposed at an fluid inlet (41) of the channel and configured to sense a temperature of the target fluid at the fluid inlet; and a control device (17) which is communicatively connected with the temperature sensor (16) and a motor (13) for controlling the air displacement device, and configured to control the air displacement device to operate at a speed less than a rated value when the temperature of the target fluid sensed by the temperature sensor is lower than a predetermined value.

5. The heat radiator according to claim 4, characterized in that the air displacement device (6) is a fan, and the control device (17) is configured to control the fan to operate at a rotating speed less than a rated rotating speed when the temperature of the target fluid sensed by the temperature sensor (16) is lower than a predetermined value.

6. The heat radiator according to claim 4, characterized in that the predetermined value is pre-stored in the control device (17) and is set based on the following criteria that: during at least half of a predetermined operation cycle of the heat radiator (100), the temperature of the target fluid sensed by the temperature sensor (16) is lower than the predetermined value.

7. The heat radiator according to claim 1, characterized in that an outer surface of the heat radiation core is provided with a louver protection layer (15) that comprises a plurality of blades (152) each having a blade guard panel (1522), a blade punching panel (1521), and a blade noise reduction layer (1523) disposed between the blade guard panel and the blade punching panel.

8. The heat radiator according to claim 1, characterized in that the cabin at the air outlet is provided with a cabin guard panel (2) surrounding the air displacement device, the cabin guard panel (2) comprising a punching panel (21), an upper guard panel, and a noise reduction material filled between the punching panel and the upper guard panel.

9. The heat radiator according to claim 1, characterized in that the air inlet is disposed at a side of the cabin, wherein the heat radiation core is disposed at the air inlet, the heat radiation core is formed in a vertical plate structure, and the heat radiation core comprises a plurality of radiation panels connected end to end.

10. The heat radiator according to claim 9, characterized in that the air outlet is disposed at a top of the cabin.

11. The heat radiator according to claim 1, characterized in that a surface of the noise reduction core opposite the air inlet is of a recessed shape.

12. The heat radiator according to claim 1, characterized in that the noise reduction core is of a shape including a pyramid, cone, or truncated cone.

13. The heat radiator according to claim 1, characterized in that the heat radiator is a cabin heat radiator or barrel heat radiator.

14. A turbo fracturing unit, characterized in that the turbo fracturing unit comprises the heat radiator according to claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) For the sake of better understanding on the above and other objectives, features, advantages, and functions of the present disclosure, the preferred embodiments are provided with reference to the drawings. The same reference symbols refer to the same components throughout the drawings. It would be appreciated by those skilled in the art that the drawings are merely provided to illustrate preferred embodiments of the present disclosure, without suggesting any limitation to the protection scope of the present application, and respective components therein are not necessarily drawn to scale.

(2) FIG. 1 is a schematic diagram of a heat radiator according to preferred embodiments of the present disclosure, where some external features are removed to expose its internal structure;

(3) FIG. 2 is an exploded view of the heat radiator according to preferred embodiments of the present disclosure;

(4) FIG. 3 is an assembled view of the heat radiator according to preferred embodiments of the present disclosure;

(5) FIG. 4 is a front view of the heat radiator according to embodiments of the present disclosure, where some external features are removed to expose its internal structure;

(6) FIG. 5 is a schematic diagram of a noise reduction core of the heat radiator according to preferred embodiments of the present disclosure;

(7) FIG. 6 is a schematic diagram of a louver protection layer of the heat radiator according to preferred embodiments of the present disclosure;

(8) FIG. 7 is a bottom view of a top structure of the heat radiator according to preferred embodiments of the present disclosure, where some features of a cabin guard panel are removed to expose external a noise reduction material therein;

(9) FIG. 8 is a schematic diagram of communication among a temperature sensor, control device and motor according to preferred embodiments of the present disclosure; and

(10) FIG. 9 is a schematic diagram of top surfaces of two turbo fracturing units disposed in parallel according to preferred embodiments of the present disclosure.

LIST OF REFERENCE SYMBOLS

(11) 100 heat radiator

(12) 1 vertical frame structure

(13) 2 cabin guard panel

(14) 21 punching panel

(15) 22 noise reduction material for guard panel

(16) 3 cabin base

(17) 4 heat radiation core

(18) 41 inlet of target fluid

(19) 42 outlet of target fluid

(20) 5 noise reduction core

(21) 51 core substrate

(22) 52 punching outer structure

(23) 53 noise reduction material for core

(24) 6 gas guide device

(25) 7 dust discharging hole

(26) 9 cabin bottom guard

(27) 10 manhole cover

(28) 11 ladder

(29) 12 fan protection structure

(30) 13 motor

(31) 14 motor base

(32) 15 louver protection layer

(33) 151 protection layer frame

(34) 152 blade

(35) 1521 blade punching panel

(36) 1522 blade guard panel

(37) 1523 blade noise reduction layer

(38) 16 temperature sensor

(39) 17 control device

(40) 200 first turbo fracturing unit 201 first engine

(41) 202 first heat radiator

(42) 300 second turbo fracturing unit

(43) 301 second engine

(44) 302 second heat radiator

DETAILED DESCRIPTION OF EMBODIMENTS

(45) Reference now will be made to the drawings to describe embodiments of the present disclosure. What will be described herein are only preferred embodiments according to the present disclosure. On the basis, those skilled in the art would envision other embodiments of the present disclosure which all fall into the scope of the present disclosure.

(46) The present disclosure provides a heat radiator. FIGS. 1-9 illustrate multiple preferred embodiments of the present disclosure. It is worth noting that directional terms as described herein are provided illustratively, rather than restrictively, and the respective directional terms are to be read with reference to the heat radiator as shown in FIGS. 1-3. For example, “top of a cabin” as described herein is to be read as a part of the cabin opposite a horizontal plane where the cabin is placed, with or without a top wall; “side of a cabin” is to be read as a part of the cabin facing the outside connected between the top and the horizontal plane. “Top” and “side” of a cabin are both conceptual terms, which do not necessarily include a physical structure. For example, as will be described below, the cabin may be a frame structure comprised of columns and beams, with sides being an open structure.

(47) Noise of a heat radiator is mainly sourced from two parts: wind whistle generated when air flows through the heat radiation core; and aerodynamic noise generated by tips of high-speed rotating fans. In order to reduce noise from the two sources, the present disclosure provides multiple improvements.

(48) Reference will now be made to FIGS. 1 and 2, a heat radiator 100 is used as an example, which is a shelter type heat radiator including a cabin comprised of a vertical frame structure 1, heat radiation cores 4, an gas guide device 6, a noise reduction core 5, and the like. Wherein, the vertical frame structure 1 may be in the form of columns, which can form a cabin in a substantially cuboid structure via beam connection. For example, as shown in FIG. 1, two adjacent columns are connected via two parallel beams and a further beam therebetween. Of course, other connections are also feasible. In other embodiments not shown, the cabin may be a barrel type or the like.

(49) As shown in FIG. 1, in this embodiment, the cabin is provided with an inlet at each of its four sides, respectively, and an outlet at its top. In other embodiments not shown, the inlet(s) and outlet(s) may be arranged at other positions. For example, the cabin may be provided with an inlet at its top, and an outlet may be disposed at the side of the cabin where no inlet is provided. The various arrangements of the inlet(s) and outlet(s) may be chosen by producers according to the actual needs.

(50) The heat radiation core 4 is a vertical structure, preferably a vertical plate structure as shown in FIG. 2, which is disposed between adjacent columns within the cabin and blocks the inlets. The heat radiation core 4 is provided thereon with fins for cooling airflow. The noise reduction core 5 is disposed in the center of the cabin and forms a structure progressively converging from the bottom to the outlet of the cabin (i.e., to the top in this embodiment). Preferably, the surface of the noise reduction core 5 facing the inlets of the cabin (i.e., facing the heat radiation core 4) is a recessed streamlined curve surface. The gas guide device 6 is disposed at the outlet of the top of the cabin. The gas guide device 6 is a fan, for example, and a fan protection structure 12 (e.g. a protective net) is disposed outside the fan. A motor 13 is mounted on the fan protection structure 12 via a motor base 14 to supply power to the gas guide device 6. In other embodiments not shown, the gas guide device 6 may be a mechanism, such as an exhaust fan, vacuum pump, and the like.

(51) Still referring to FIG. 2, each side of the cabin is provided with a heat radiation core 4. Each heat radiation core 4 is formed in a vertical plate structure, and all of the heat radiation cores 4 are connected end to end. During operation, the heat radiator 100 can suction the air outside the cabin from any position of its sides into the cabin and enables the air to flow through the heat radiation cores 4 to achieve cooling. Such arrangement can improve the heat radiation efficiency of the heat radiator 100. However, the number of heat radiation cores 4 at each side is not limited to one. Instead, each side of the cabin may be provided with a plurality of heat radiation cores 4 that are arranged vertically or laterally end to end.

(52) In an embodiment, the heat radiation core 4 is provided therein with a channel allowing a target fluid to flow therethrough, and configured to enable heat exchange between the gas and the target fluid within the channel when the gas flows through the heat radiation core 4, so as to cool the target fluid. Referring to FIG. 2, an inlet 41 of the channel of the heat radiation core 4 may be disposed at the bottom of the heat radiation core 4, and an outlet 42 of the target fluid of the heat radiation core 4 may be disposed at the top of the heat radiation core 4. For example, the target fluid may be oil, and the heat radiator may be an heat radiator especially for oil accordingly. Alternatively, the target fluid may be water, and the heat radiator may be a heat radiator especially for water accordingly. Alternatively, the heat radiator may be provided therein with channels allowing other target fluids to flow therethrough. Preferably, the heat radiation core 4 at its outer surface is provided with fins to increase a contact area between the heat radiation core 4 and the gas.

(53) A flow path of airflow flowing through the heat radiator 100 is indicated by arrows in FIG. 4. Referring to FIG. 4, warm airflow can flow into the cabin from the inlets thereof, then sequentially through the smooth streamlined curved surface of the noise reduction core 5, the gas guide device 6 and finally out of the cabin. Being a suction-type heat radiator, the heat radiator 100 does not affect other heat radiators in the vicinity during operation. The gas flows through the streamlined curved surface of the noised reduction core 5 to further reduce noise without impacting the gas flow.

(54) The heat radiator 100 further includes a temperature sensor 16 and a control device 17. The communication among the temperature sensor 16, the control device 17 and the motor 13 is shown in FIG. 8 in which arrows indicate a transmission direction of a signal. More specifically, the temperature sensor 16 is disposed at the inlet 41 of the oil path of the heat radiation core 4 and configured to sense the temperature of the target fluid at the inlet, and can transmit a sensor signal containing sensing temperature information to the control device 17. The control device 17 is communicatively connected with the temperature sensor 16 and the motor 13 for controlling the gas guide device 6. Upon receiving a signal from the temperature sensor 16, the control device 17 is configured to determine whether the temperature of the target fluid sensed by the temperature sensor 16 is lower than a predetermined value, and further send a control signal to the motor 13 when determining that the temperature of the target fluid sensed by the temperature senor 16 is lower than the predetermined value, to control the gas guide device 6 to operate at a speed less than a rated value. When the gas guide device 6 is a fan, the control device 17 can control the fan to rotate at a rotating speed less than a rated rotating speed when the temperature of the target fluid sensed by the temperature sensor 16 is lower than the predetermined value.

(55) It would be appreciated that, if the temperature of the target fluid at the inlet is higher than or equal to the predetermined value, suction should be accelerated to propel the airflow, so as to fulfill the predetermined cooling purpose. Therefore, the operating speed of the gas guide device 6 is increased when the temperature of the target fluid at the inlet is high. Otherwise, it is unnecessary to operate the gas guide device 6 at a high speed. When the gas guide device 6 operates at a relatively low speed (for example, the fan is rotating at a low speed), the noise can be reduced as much as possible.

(56) Preferably, a predetermined value pre-stored in the control device 17 is set based on the following criteria that: during at least half of a predetermined operation cycle of the heat radiator 100, temperature of the gas at the inlet sensed by the temperature sensor 16 is lower than a predetermined value. In this arrangement, the gas guide device 6 operates at a speed lower than the rated value during at least half of the operation period, to save energy resources and avoid unnecessary noise.

(57) Also preferably, referring to FIG. 5, the noise reduction core 5 includes a core substrate 51, a punching outer structure 52, and noise reduction material for the core 53. The core substrate 51 is a hollow tower structure; and the punching outer structure 52 is a hollow tower structure that opens at the bottom. The surface of the tower structure may be an overall smooth curved surface, or may be comprised of a plurality of facets. Each of the outwardly orientated surfaces of the punching outer structure 52 is preferably of a recessed shape, and the shape of the punching outer structure 52 is adapted to be sleeved outside the core substrate 51. The punching outer structure 52 and the core substrate 51 are not necessarily in shape fit. The core substrate 51 may be of any shape as long as it, together with the punching outer structure 52, can form a hollow structure. The noise reduction material for the core 53 is filled between the core substrate 51 and the punching outer layer. Such structure allows the warm airflow to flow through the streamlined curved surface of the punching outer structure 52, and to contact the noise reduction material for the core 53 via holes on the punching outer structure 52 to reduce noise. Since the noise reduction core 5 is a hollow structure, the overall weight of the heat radiator will not be increased remarkably. Referring to FIGS. 2 and 3, the heat radiation core 4 at the outer surface is provided with a louver protection layer 15 for protecting the heat radiation core 4.

(58) The specific structure of the louver protection layer 15 is illustrated in FIG. 6. The louver protection layer 15 includes a protection layer frame 151 and a plurality of parallel blades 152 within the protection layer frame 151; and the blade 152 includes a blade guard panel 1522, a blade punching panel 1521, and a blade noise reduction layer 1523 disposed between the blade guard panel 1522 and the blade punching panel 1521. When the heat radiator is operating, the blades 152 are opened at an angle less than 90 degrees relative to the vertical line such that the noise reduction material obliquely faces the heat radiation core 4. The noise generated at the fins of the heat radiation core 4 can be absorbed by the noise reduction material on the blades 152. In addition, the blade punching panel 1521 is provided to prevent fragments of the noise reduction material from being suctioned and stuck between fins of the heat radiation core 4 and blocking the latter due to the noise reduction material broken or shed after a long service time.

(59) When the heat radiator 100 is operating, the blades 152 of the louver protection layer 15 are at an open state to guarantee smooth air intake. After the work of the heat radiator 100 is completed, the blades 152 of the louver protection layer 15 are closed to protect the heat radiation core 4 from getting wet in case of rain, to avoid attachment of silicon dust and guar gum powder suspended in the air, or to prevent the fins of the heat radiation core 4 from being blocked due to dust accumulation. During travelling, the blades 152 of the louver protection layer 15 can be closed to protect the heat radiation core 4 from being damaged by the flying sand, branches, and other debris.

(60) The heat radiator 100 at its top may be provided with a noise reduction structure, and a preferred embodiment of the top structure of the heat radiator 100 is shown in FIG. 7 which illustrates a bottom view of the top structure. The heat radiator 100 includes a cabin guard panel 2 which includes a punching panel 21 at its bottom surface, an upper guard panel at its top surface, and a noise reduction material for the guard panel 22 disposed between the punching panel 21 and the upper guard panel. For illustration, part of the punching panel 21 of the cabin guard panel 2 in FIG. 7 is removed to expose the noise reduction material for the guard panel 22. With such arrangement, the airflow can contact the noise reduction material via holes on the punching plate 21 when flowing through the cabin guard panel 2, so as to further reduce noise. Moreover, the punching panel 21 can also secure the noise reduction material to prevent the broken or shed noise reduction material from being wound onto the blades 152 of the gas guide device 6 and further damaged the same.

(61) On the other hand, since it is easy to accumulate dust and collect water (if raining) at the bottom of the heat radiator 100, the heat radiator 100 should be maintained periodically. As shown in FIGS. 1 and 2, in the embodiment, the cabin base 3 is mounted thereon with a cabin bottom guard panel 9; the cabin bottom guard panel 9 is provided thereon with a dust discharging hole 7; the cabin guard panel 2 is provided thereon with a manhole which is covered by a manhole cover 10; and a ladder 11 is connected between the manhole and the bottom protection panel. During maintenance, the maintenance personnel enter the cabin through the manhole and the ladder 11 and then perform maintenance on the heat radiator 100 via a maintenance channel on the bottom panel, to clear the water, dust and others through the dust discharging hole 7.

(62) The noise reduction core 5 disposed in the center of the bottom within the cabin is prone to collect dust, making the noise reduction material blocked and deteriorating the noise reduction effect. The noise reduction core 5 of the above configuration can facilitate maintenance where only the noise reduction material needs to be purged and replaced regularly. As a result, such arrangement significantly reduces the maintenance time and costs.

(63) In addition to the above specific structure, the heat radiator 100 may be of other alternative structure not shown in the drawings. For example, the noise reduction core 5 may be of a pyramid, cone, truncated cone, or other shape, or may be of an irregular shape. Likewise, the motor 13 may be a hydraulically driven motor, electric motor, pneumatic motor, or the like. Moreover, the heat radiator 100 as discussed above may be a radiator especially for lubricating oil, or may be a heat radiator especially for water or other type of heat radiator integrated with an engine.

(64) In the present disclosure, there is provided a turbo fracturing unit comprising the heat radiator as mentioned above. A plurality of turbo fracturing units may be provided in set. For example, as shown in FIG. 9, two turbo fracturing units may be disposed in parallel on the ground. Wherein, a first turbo fracturing unit 200 in the two turbo fracturing units includes a first engine 201 and a first heat radiator 202 at its journal neck, and a second turbo fracturing unit 300 includes a second engine 301 and a second heat radiator 302 at its journal neck. Since the first heat radiator 202 and the second heat radiator 302 are cabin heat radiation units as shown in FIGS. 1-7, the first heat radiator 202 and the second heat radiator 302 suction in warm airflow from the side surfaces and then discharge the cooled airflow from the top, respectively, and the flow direction when the gas is suctioned in is indicated with arrows as shown in FIG. 9. It can be seen that, since the first heat radiator 202 and the second heat radiator 302 are suction-type heat radiators, the heat radiator of each turbo fracturing unit will not impact others when a plurality of turbo fracturing units are operating in parallel, such that a high operation efficiency can be achieved within a limited operation space.

(65) The heat radiator according to the present disclosure is provided with multiple noise reduction means. Wherein, the heat radiator can regulate the speed of the gas guide device based on the temperature of the gas at the inlet, thereby avoiding energy waste and unnecessary noise. The heat radiator is provided therein with a noise reduction core which allows the gas to flow through the outer surface of the noise reduction core, so as to further reduce noise without impacting the gas flow. In addition, the heat radiator is a suction-type heat radiator, and such type of heat radiator of each turbo fracturing unit will not impact others when a plurality of turbo fracturing units are operating in parallel, such that a high operation efficiency can be achieved within a limited operation space.

(66) The foregoing description on the various embodiments of the present disclosure has been presented to those skilled in the relevant fields for purposes of illustration, but are not intended to be exhaustive or limited to a single embodiment disclosed herein. As aforementioned, many substitutions and variations will be apparent to those skilled in the art. Therefore, although some alternative embodiments have been described above, those skilled in the art can still envision or develop other embodiments much more easily. The present disclosure is intended to cover all substitutions, modifications and variations of the present disclosure as described herein, as well as other embodiments falling into the spirits and scope of the present disclosure.