CN221123120U - Power heat pipe refrigerant pump cabinet and power heat pipe system thereof - Google Patents

Abstract

The application relates to the technical field of power heat pipes, in particular to a power heat pipe refrigerant pump cabinet and a power heat pipe system thereof. A power heat pipe refrigerant pump cabinet comprises a refrigerant pump, a liquid storage device, a first pipeline, a dry filter, a bypass pipeline and a switch piece, wherein the refrigerant pump is provided with an inlet, the liquid storage device is communicated with the inlet, and the first pipeline is communicated with the liquid storage device so that the refrigerant in the first pipeline can flow into the liquid storage device; the drying filter is arranged on the first pipeline and used for drying and filtering the refrigerant in the first pipeline, the bypass pipeline is arranged in parallel with the first pipeline and is communicated with the liquid reservoir, and the switch piece is arranged on the bypass pipeline and used for opening or closing the bypass pipeline. A power heat pipe system comprises a power heat pipe, a heat pipe main machine and a power heat pipe refrigerant pump cabinet; the power heat pipe refrigerant pump cabinet is connected between the power heat pipe and the heat pipe host. The application can reduce the flow resistance of the refrigerant and improve the efficiency of the refrigerant pump.

Description

Power heat pipe refrigerant pump cabinet and power heat pipe system thereof

Technical Field

The application relates to the technical field of power heat pipes, in particular to a power heat pipe refrigerant pump cabinet and a power heat pipe system thereof.

Background

The power heat pipe refrigerant pump cabinet is connected in series between the heat pipe compound host and the power heat pipe and is used for providing driving force for refrigerant circulation of the heat pipe system. The power heat pipe refrigerating agent pump cabinet mainly comprises a refrigerating agent pump, a liquid storage device, a drying filter and the like, wherein the refrigerating agent enters the liquid storage device after being dried by the drying filter and then enters the refrigerating agent pump through the liquid storage device.

In the prior art, although the arrangement of the dry filter can filter out impurities in the system, the dry filter exists in the actual operation process, so that the flow resistance of the refrigerant in the system is increased, and the operation efficiency of the refrigerant pump is reduced.

Disclosure of utility model

Based on this, it is necessary to provide a power heat pipe refrigerant pump cabinet and a power heat pipe system thereof capable of reducing the flow resistance of the refrigerant and improving the operation efficiency of the refrigerant pump.

In order to solve the technical problems, the application provides the following technical scheme:

The device comprises a refrigerant pump, a liquid reservoir, a first pipeline, a drying filter, a bypass pipeline and a switch piece, wherein the refrigerant pump is provided with an inlet, the liquid reservoir is communicated with the inlet, and the first pipeline is communicated with the liquid reservoir; the dry filter is installed on the first pipeline, the bypass pipeline is connected with the first pipeline in parallel, the bypass pipeline is communicated with the liquid storage device, and the switch piece is installed on the bypass pipeline and used for opening or closing the bypass pipeline.

In the application, the bypass pipeline is arranged and combined with the switch part, so that the bypass pipeline can be closed through the switch part at the initial stage of the operation of the power heat pipe refrigerant pump cabinet, and the refrigerant flows into the liquid reservoir after passing through the first pipeline and drying and filtering by the drying filter; when the power heat pipe refrigerant pump cabinet operates for a period of time, the bypass pipeline can be opened through the switch piece, at the moment, the refrigerant is split through the bypass pipeline, part of the refrigerant enters the liquid storage device through the bypass valve, and the other part of the refrigerant still enters the liquid storage device through the dry filter. In this way, the flow resistance of the refrigerant entering the filter drier is reduced by the split flow, so that the efficiency of the refrigerant pump is improved.

In one embodiment, the number of the refrigerant pumps is at least two, and at least two of the refrigerant pumps are arranged in parallel; wherein an inlet of each of the refrigerant pumps is in communication with the accumulator.

It will be appreciated that by providing at least two refrigerant pumps, sufficient motive power can be provided to the system when the at least two refrigerant pumps are operated simultaneously; when one of the refrigerant pumps is operated, the other refrigerant pump may be used as a standby machine to improve the stability of the operation of the present application.

In one embodiment, the inlet of each of the refrigerant pumps communicates with the reservoir via a first branch; the plurality of first branches are arranged in parallel, each first branch is provided with a first valve, and the first valves are used for opening and closing the first branches.

It will be appreciated that by providing the first valve, not only can the operation of the refrigerant pump be controlled, but also the maintenance and replacement of the refrigerant pump can be facilitated by enabling the corresponding first branch to be actuated by the first valve.

In one embodiment, the refrigerant pumps have outlets, the outlet of each of the refrigerant pumps being connected to a second branch; the second branches are arranged in parallel, each second branch is provided with a second valve, and the second valves are used for opening and closing the second branches.

It will be appreciated that by providing the second valve, the operation of the refrigerant pump can be conveniently controlled and maintenance and replacement of the refrigerant pump can be facilitated by enabling the second valve to actuate the corresponding second branch.

In one embodiment, each of said second branches is provided with a non-return valve, which is arranged closer to said outlet of said refrigerant pump than said second valve, in the direction of the refrigerant flow.

It will be appreciated that by providing a one-way valve, reverse flow of refrigerant is avoided and that in normal operation of one of the refrigerant pumps the other refrigerant pump acts as a backup.

In one embodiment, a first pressure sensor is arranged at the inlet of the refrigerant pump, and a second pressure sensor is arranged at the outlet of the refrigerant pump;

And/or the inlet of the refrigerant pump is also provided with a first temperature sensor, and the outlet of the refrigerant pump is also provided with a second temperature sensor.

It can be understood that by arranging the first pressure sensor and the second pressure sensor, the change of the pressure of the refrigerant at the inlet and the outlet of the refrigerant pump can be judged, so that the stability of the operation state of the refrigerant pump is better ensured; by arranging the first temperature sensor and the second temperature sensor, the change of the pressure of the refrigerant at the inlet and the outlet of the refrigerant pump can be judged, and the stability of the running state of the refrigerant pump is better ensured.

In one embodiment, the powered heat pipe refrigerant pump cabinet further comprises a cabinet body, wherein the refrigerant pump and the liquid reservoir are both positioned in the cabinet body; and, along the direction of height of the cabinet body, the reservoir is located relatively above the refrigerant pump.

It will be appreciated that by locating the accumulator relatively above the refrigerant pump, it is ensured that the liquid refrigerant fills the refrigerant pump, avoiding the risk of idling or cavitation of the refrigerant pump.

In one embodiment, the filter drier and the switch are disposed at the top of the cabinet, and the accumulator is disposed between the filter drier and the refrigerant pump along the height direction of the cabinet.

In one embodiment, the first pipeline is in a U-shaped arrangement, the drying filter is arranged at a U-shaped bent position of the first pipeline, and the bypass pipeline provided with the switch piece is parallel and connected with the U-shaped position of the first pipeline.

In one embodiment, the inlet of the refrigerant pump communicates with the accumulator through a first branch; the outlet of the refrigerant pump is communicated with a second branch; the first branch and the second branch are arranged in parallel along the width direction of the cabinet body; the first pipeline and the first branch are respectively connected to two different sides of the liquid storage device.

The application also provides the following technical scheme:

A power heat pipe system comprises a power heat pipe, a heat pipe main machine and a power heat pipe refrigerant pump cabinet;

The power heat pipe refrigerant pump cabinet is connected between the power heat pipe and the heat pipe host.

Compared with the prior art, the power heat pipe refrigerant pump cabinet is provided with the bypass pipeline and is combined with the switch piece, so that the bypass pipeline can be closed through the switch piece at the initial operation stage of the power heat pipe refrigerant pump cabinet, and the refrigerant flows into the liquid reservoir after passing through the first pipeline and being dried and filtered by the drying filter; when the power heat pipe refrigerant pump cabinet operates for a period of time, the bypass pipeline can be opened through the switch piece, at the moment, the refrigerant is split through the bypass pipeline, part of the refrigerant enters the liquid storage device through the bypass valve, and the other part of the refrigerant still enters the liquid storage device through the dry filter. In this way, the flow resistance of the refrigerant entering the filter drier is reduced by the split flow, so that the efficiency of the refrigerant pump is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a power heat pipe system provided by the application.

FIG. 2 is a schematic diagram of the power heat pipe refrigerant pump cabinet according to the present application.

Fig. 3 is a schematic view of a view structure of the cabinet omitted in fig. 2 according to the present application.

Fig. 4 is a schematic view of another view structure of the cabinet omitted in fig. 2 according to the present application.

FIG. 5 is a schematic diagram of a power heat pipe refrigerant pump cabinet provided by the application.

Reference numerals: 100. a power heating pipe refrigerant pump cabinet; 10. a refrigerant pump; 11. an inlet; 111. a first pressure sensor; 112. a first temperature sensor; 12. a first branch; 121. a first valve; 13. an outlet; 131. a second pressure sensor; 132. a second temperature sensor; 14. a second branch; 141. a second valve; 142. a one-way valve; 20. a reservoir; 21. an observation hole; 30. a first pipeline; 40. drying the filter; 50. a bypass line; 60. a switch member; 70. a cabinet body; 71. a bracket; 200. a power heat pipe; 300. a heat pipe host.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present application for the purpose of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in the description of the present application includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present application provides a power heat pipe system, which includes a power heat pipe refrigerant pump cabinet 100, a power heat pipe 200, and a heat pipe main unit 300, wherein the power heat pipe refrigerant pump cabinet 100 is connected between the power heat pipe 200 and the heat pipe main unit 300, and is used for providing power for the flow of refrigerant in the power heat pipe system. Here, the heat pipe main unit 300 is a compound machine including a compressor, an outdoor condenser, a throttle element, a drying filter cartridge, a heat exchanger (evaporation condenser), a gas-liquid separator, and the like.

Specifically, with reference to fig. 1, the working principle of the dynamic heat pipe system is approximately as follows: under the condition that the outdoor environment temperature is higher in summer, the compressor is started, the compressor outputs high-temperature high-pressure gaseous refrigerant A, the high-temperature high-pressure gaseous refrigerant A is changed into medium-temperature high-pressure liquid refrigerant A after being condensed and radiated by the outdoor condenser, the medium-temperature high-pressure liquid refrigerant A flows into the electronic expansion valve (namely the throttling element) after being filtered by the drying filter cylinder, the low-temperature low-pressure gas-liquid two-phase refrigerant A flows into the first channel of the heat exchanger after being throttled and expanded, heat exchange is carried out on the low-temperature low-pressure gas-liquid two-phase refrigerant A and the refrigerant B in the second channel of the heat exchanger, the refrigerant A is changed into medium-temperature gas-liquid separator after absorbing heat of the refrigerant B and evaporating, and the separated gaseous refrigerant A flows back to the compressor for compression and recycling; the liquid refrigerant B (possibly containing a small amount of gas) subjected to heat exchange and temperature reduction with the refrigerant A flows through the power heat pipe refrigerant pump cabinet 100 under the action of the refrigerant pump, after passing through the power heat pipe refrigerant pump cabinet 100, the liquid refrigerant B flows to an electronic expansion valve arranged at the power heat pipe 200, and after throttling and expansion, the liquid refrigerant B turns into low-temperature low-pressure gas-liquid two-phase refrigerant B to flow to a backboard of the power heat pipe 200 and exchange heat with indoor environment temperature, and the refrigerant B evaporates into medium-temperature gas after absorbing the indoor environment heat and flows to the heat exchanger to exchange heat with the refrigerant A again, and then condenses into the liquid refrigerant B to form a cycle. When the outdoor environment temperature is low in winter, the demand for refrigerating capacity is small (the machine room refrigerates all the year round), the compressor stops running, at the moment, the refrigerant B directly flows into the outdoor condenser under the action of the refrigerant pump, the outdoor condenser is utilized to exchange heat and condense with the outdoor low-temperature environment, then the refrigerant B flows to the power heat pipe 200 through the power heat pipe refrigerant pump cabinet 100 to exchange heat and cool in the machine room, and the refrigerant B after heat absorption is recycled to the outdoor condenser to condense.

As shown in fig. 2 to 4, the power heat pipe refrigerant pump cabinet 100 includes a refrigerant pump 10, a liquid reservoir 20, a first pipe 30, a dry filter 40, a bypass pipe 50, and a switching element 60, the refrigerant pump 10 having an inlet 11, the liquid reservoir 20 being in communication with the inlet 11, the first pipe 30 being in communication with the liquid reservoir 20 so that the refrigerant in the first pipe 30 can flow into the liquid reservoir 20 and flow from the inlet into the refrigerant pump 10; the filter drier 40 is installed on the first pipeline 30, and is used for drying and filtering the refrigerant in the first pipeline 30, the bypass pipeline 50 is parallel to the first pipeline 30, the bypass pipeline 50 is communicated with the liquid reservoir 20, and the switch element 60 is installed on the bypass pipeline 50, and is used for opening or closing the bypass pipeline 50. Thus, by providing the bypass line 50 and combining the switching member 60, the bypass line 50 may be closed by the switching member 60 at the initial operation stage of the power heat pipe refrigerant pump cabinet 100, so that the refrigerant passes through the first line 30 and flows into the accumulator 20 after being dried and filtered by the dry filter 40; when the power heat pipe refrigerant pump cabinet 100 is operated for a period of time, the bypass line 50 is opened through the switching element 60, and at this time, the refrigerant is split through the bypass line 50, part of the refrigerant enters the accumulator 20 through the bypass valve, and the other part of the refrigerant still enters the accumulator 20 through the drier-filter 40. That is, the flow resistance of the refrigerant entering the dry filter 40 is reduced by the split flow, so that the efficiency of the refrigerant pump 10 is improved.

In an embodiment, the number of the refrigerant pumps 10 is set to at least two, and at least two refrigerant pumps 10 are arranged in parallel; the inlet 11 of each of the refrigerant pumps 10 communicates with a reservoir 20. By providing at least two refrigerant pumps 10, sufficient motive power can be provided to the system when at least two refrigerant pumps 10 are operated simultaneously; or when one of the refrigerant pumps 10 is operated, the other refrigerant pump 10 may be used as a standby machine to improve the stability of the operation of the present application.

In the embodiment, the number of refrigerant pumps 10 is set to two. One of the two refrigerant pumps 10 is used as a standby machine so that when one of the refrigerant pumps 10 needs to rest, the other refrigerant pump 10 can be started to ensure uninterrupted operation of the powered heat pipe system.

As shown in fig. 3 to 5, the inlet 11 of each refrigerant pump 10 communicates with the reservoir 20 through the first branch 12; the first branches 12 are arranged in parallel, and each first branch 12 is provided with a first valve 121, and the first valves 121 are used for opening and closing the first branches 12. Thus, by providing the first valve 121, not only can the operation of the refrigerant pump 10 be controlled, but also maintenance and replacement of the refrigerant pump 10 can be facilitated by enabling the corresponding first branch 12 to be actuated by the first valve 121. Here, the first valve 121 may be provided as a shut-off valve, a ball valve, or the like.

In an embodiment, the refrigerant pumps 10 have outlets 13, the outlet 13 of each refrigerant pump 10 being connected to a second branch 14; the plurality of second branches 14 are arranged in parallel, and each second branch 14 is provided with a second valve 141, and the second valves 141 are used for opening and closing the second branches 14. Thus, by providing the second valve 141, not only can the operation of the refrigerant pump 10 be controlled, but also the maintenance and replacement of the refrigerant pump 10 can be facilitated by enabling the corresponding second branch 14 to be actuated by the second valve 141. Here, the second valve 141 may be provided as a shut-off valve, a ball valve, or the like.

As shown in fig. 3 and 4, a check valve 142 is further provided on each second branch 14 to allow the refrigerant to be conducted in one direction. In the present embodiment, the check valve 142 is disposed closer to the outlet 13 of the refrigerant pump 10 than the second valve 141 in the refrigerant flow direction, so that the reverse flow of the refrigerant can be prevented, and the refrigerant pump is damaged; in addition, in the normal operation of one of the refrigerant pumps 10, the other refrigerant pump 10 is used as a backup machine.

Further, a first pressure sensor 111 is provided at the inlet 11 of the refrigerant pump 10, and a second pressure sensor 131 is provided at the outlet 13 of the refrigerant pump 10. The first pressure sensor 111 is used to detect and acquire the refrigerant pressure at the inlet 11, and the second pressure sensor 131 is used to detect and acquire the refrigerant pressure at the outlet 13. In this way, the pressure change of the refrigerant between the inlet 11 and the outlet 13 can be obtained, and the pressure change can be fed back to the heat pipe host 300, so that the heat pipe host 300 controls the output of the cold quantity of the refrigerant A according to the pressure change, thereby controlling the heat exchange efficiency of the refrigerant B and the refrigerant A, avoiding the interruption of the refrigerant pump 10 caused by the too fast system pressure change, and improving the stability of the running state of the refrigerant pump 10.

Further, a first temperature sensor 112 is provided at the inlet 11 of the refrigerant pump 10, and a second temperature sensor 132 is provided at the outlet 13 of the refrigerant pump 10. The first temperature sensor 112 is used to detect and acquire the temperature of the refrigerant at the inlet 11, and the second temperature sensor 132 is used to detect and acquire the temperature of the refrigerant at the outlet 13. In this way, the temperature change of the refrigerant between the inlet 11 and the outlet 13 can be obtained, the temperature change can be fed back to the heat pipe host 300, so that the heat pipe host 300 controls the output of the cold energy of the refrigerant A according to the pressure change, thereby controlling the heat exchange efficiency of the refrigerant B and the refrigerant A, avoiding the interruption of the refrigerant pump 10 caused by the too fast system pressure change, and improving the stability of the operation state of the refrigerant pump 10

As shown in fig. 3 and 4, the switch member 60 is configured as a bypass valve or other component capable of controlling the opening and closing of the bypass line 50, where the bypass valve may be a shut-off valve, a ball valve, a butterfly valve, or the like, having a valve for controlling the opening and closing of the bypass line 50.

As shown in fig. 2 and 3, the power heat pipe refrigerant pump cabinet 100 further includes a cabinet body 70, and the refrigerant pump 10 and the accumulator 20 are both located in the cabinet body 70; also, the accumulator 20 is relatively located above the refrigerant pump 10 along the height direction (X direction in fig. 2) of the cabinet 70. In this way, it is ensured that the liquid refrigerant fills the refrigerant pump 10, avoiding the risk of idling or cavitation of the refrigerant pump 10.

Further, a bracket 71 is provided at the bottom of the cabinet 70 in the height direction, and the refrigerant pump 10 is fixed to the bottom of the cabinet 70 by the bracket 71.

In one embodiment, as shown in fig. 2 to 4, the dry filter 40 and the switching member 60 are disposed at the top position of the cabinet 70 in the height direction (X direction) of the cabinet 70, that is, the dry filter 40 and the switching member 60 are located above the refrigerant pump 10. In the height direction of the cabinet 70, the reservoir 20 is disposed between the dry filter 40 and the refrigerant pump 10. It will be appreciated that the volume of the reservoir 20 is generally relatively large, while the central portion of the cabinet 70 is generally relatively empty. Therefore, in the layout, the large-volume reservoir 20 is arranged between the dry filter 40 and the refrigerant pump 10, so that the space of the cabinet 70 can be fully utilized, and the whole structure inside the cabinet 70 is compact.

Further, as shown in fig. 3, the first pipeline 30 is disposed in a U-shape, the filter drier 40 is disposed at the U-bend of the first pipeline 30, and the bypass pipeline 50 with the switch element 60 is parallel to the U-bend of the first pipeline 30. In this way, the first pipeline 30 is set to be U-shaped, a better accommodating position can be formed by utilizing the turning of the U-shape, and the bypass pipeline 50 is parallel and parallel to the U-shape of the first pipeline 30, that is, the bypass pipeline 50 is also located at the U-shape of the first pipeline 30. In this way, the U-shaped bent part of the first pipeline 30 is utilized to accommodate the dry filter 40 and the switch piece 60, so that the space occupied by the dry filter 40 and the switch piece 60 is reduced, and the overall structure of the cabinet 70 is further compact. Here, the first pipe 30 is not limited to the U-shape, and may be arc-shaped or shaped.

In an embodiment, as shown in fig. 3, along the width direction (e.g., the Y direction in fig. 2) of the cabinet 70, the first branch 12 and the second branch 14 are arranged in parallel, so that the space in the express direction of the cabinet 70 is fully utilized, and the internal structure of the cabinet 70 is more compact. In other words, a smaller volume cabinet 70 may be suitable.

Further, as shown in fig. 4, the inlet 11 of the refrigerant pump 10 communicates with the reservoir 20 through the first branch 12; the outlet 13 of the refrigerant pump 10 is connected to the second branch 14; the first conduit 30 and the first branch 12 are connected to two different sides of the reservoir 20, respectively. In this way, the first pipeline 30 and the first branch 12 are connected to different orientations of the liquid storage 20, so that the space on the periphery of the liquid storage 20 is fully utilized, and the whole structure is more compact.

Specifically, along the length direction of the cabinet 70 (e.g., the Z direction in fig. 2), the reservoir 20 extends along the length direction of the cabinet 70, and the first pipe 30 is connected to one side of the reservoir 20 in the Y direction, and the first branch 12 is connected to one end of the reservoir 20 in the Z direction. Of course, the first pipe 30 may be connected to one end of the reservoir 20 in the Z direction, and the first branch 12 may be connected to one side of the reservoir 20 in the Y direction. Alternatively or when the reservoir 20 is cylindrical, the first conduit 30 is connected to the end of the reservoir 20 and the first branch 12 is connected to the peripheral wall of the reservoir 20 (here, two different sides, which can be understood as two different directions). It is also possible that when the reservoir 20 is cylindrical, the first pipe 30 and the first branch 12 are both connected to the outer peripheral wall of the reservoir 20, and at this time, the first pipe 30 and the first branch 12 are disposed at intervals along the circumferential direction of the reservoir 20 (here, two different sides may be understood as two different directions). It should be noted that, the specific connection manner between the first pipeline 30 and the first branch 12 and the reservoir 20 is not limited, as long as the first pipeline 30 and the first branch 12 are guaranteed to be connected to two different sides of the reservoir 20.

In one embodiment, the reservoir 20 is horizontally mounted inside the cabinet 70 to avoid localized liquid accumulation inside the reservoir 20.

Further, the reservoir 20 is provided with an observation hole 21, and a floating ball (not shown) is disposed in the observation hole 21. The amount of liquid refrigerant in the accumulator 20 can be easily observed through the observation hole 21, and the floating ball floats under the action of the gaseous refrigerant, so that the amount of the gaseous refrigerant is identified through the floating ball. Thus, by providing the combination of the observation hole 21 and the float ball, the amounts of the gaseous and liquid refrigerants inside the accumulator 20 can be observed at the same time.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be determined from the following claims.

Claims (11)

1. A power heat pipe refrigerant pump cabinet, which is characterized by comprising a refrigerant pump, a liquid storage device, a first pipeline, a dry filter, a bypass pipeline and a switch piece, wherein the refrigerant pump is provided with an inlet, the liquid storage device is communicated with the inlet, and the first pipeline is communicated with the liquid storage device;

The dry filter is installed on the first pipeline, the bypass pipeline is connected with the first pipeline in parallel, the bypass pipeline is communicated with the liquid storage device, and the switch piece is installed on the bypass pipeline and used for opening or closing the bypass pipeline.

2. The powered heat pipe refrigerant pump cabinet of claim 1, wherein the number of refrigerant pumps is at least two and at least two of the refrigerant pumps are arranged in parallel;

wherein an inlet of each of the refrigerant pumps is in communication with the accumulator.

3. The powered heat pipe refrigerant pump cabinet as defined in claim 2, wherein the inlet of each of the refrigerant pumps communicates with the reservoir through a first branch;

The plurality of first branches are arranged in parallel, each first branch is provided with a first valve, and the first valves are used for opening and closing the first branches.

4. A powered heat pipe refrigerant pump cabinet as claimed in claim 2 or 3, wherein the refrigerant pumps have outlets, the outlet of each refrigerant pump being connected to a second branch;

The second branches are arranged in parallel, each second branch is provided with a second valve, and the second valves are used for opening and closing the second branches.

5. The powered heat pump refrigerant pump cabinet as defined in claim 4, wherein each of said second branches is provided with a one-way valve, said one-way valve being disposed closer to said outlet of said refrigerant pump than said second valve, in the direction of refrigerant flow.

6. The powered heat pipe refrigerant pump cabinet as defined in claim 4, wherein a first pressure sensor is provided at an inlet of the refrigerant pump and a second pressure sensor is provided at an outlet of the refrigerant pump;

And/or the inlet of the refrigerant pump is also provided with a first temperature sensor, and the outlet of the refrigerant pump is also provided with a second temperature sensor.

7. The powered heat pipe refrigerant pump cabinet of claim 1, further comprising a cabinet body, wherein the refrigerant pump and the reservoir are both located within the cabinet body; and, along the direction of height of the cabinet body, the reservoir is located relatively above the refrigerant pump.

8. The powered heat pipe refrigerant pump cabinet as defined in claim 7, wherein the dry filter and the switch are disposed at a top of the cabinet and the accumulator is disposed between the dry filter and the refrigerant pump along a height of the cabinet.

9. The powered heat pipe refrigerant pump cabinet as defined in claim 8, wherein the first conduit is in a U-shaped configuration, the dry filter is disposed at a U-shaped bend of the first conduit, and the bypass conduit provided with the switch element is parallel to the U-shaped bend of the first conduit.

10. A powered heat pipe refrigerant pump cabinet as defined in any one of claims 7-9, wherein the inlet of the refrigerant pump communicates with the reservoir through a first branch; the outlet of the refrigerant pump is communicated with a second branch;

the first branch and the second branch are arranged in parallel along the width direction of the cabinet body;

The first pipeline and the first branch are respectively connected to two different sides of the liquid storage device.

11. A power heat pipe system, comprising a power heat pipe, a heat pipe main machine and a power heat pipe refrigerant pump cabinet as claimed in any one of claims 1 to 10;

The power heat pipe refrigerant pump cabinet is connected between the power heat pipe and the heat pipe host.