CN218330264U - Heat load device and refrigeration performance test equipment thereof - Google Patents

Abstract

The application relates to the field of performance test of a refrigeration system, in particular to a heat load device and refrigeration performance test equipment thereof. The heat load device is used for testing the refrigerating performance of refrigerating equipment and comprises: the heat exchange module is internally provided with a heat exchange flow channel communicated with the refrigeration equipment, and two ends of the heat exchange flow channel penetrate through the wall surface of the heat exchange module to form a circulation port; one end of the joint component is connected to the heat exchange module and communicated with the circulation port, and the other end of the joint component is connected to the refrigeration equipment; and the heating units are arranged in the heat exchange module and are uniformly distributed on the upper side and the lower side of the heat exchange flow channel. The application also provides a refrigeration performance test device which comprises the heat load device. Compared with the prior art, the utility model has the advantages of: heating units are uniformly distributed on the upper side and the lower side of the heat exchange flow channel, so that the refrigerant in the heat exchange flow channel is heated more uniformly, and the precision of the refrigeration capacity test of the refrigeration equipment is ensured.

Description

Heat load device and refrigeration performance test equipment thereof

Technical Field

The application relates to the field of performance test of a refrigeration system, in particular to a heat load device and refrigeration performance test equipment thereof.

Background

Generally, after the refrigeration system equipment in the semiconductor industry is manufactured, the refrigeration performance of the refrigeration equipment is tested by adopting test equipment so as to ensure that the refrigeration system in the refrigeration equipment meets the use requirement. Usually, a heat load device is added to the refrigerating system, and the stability of the temperature of an inlet and an outlet of the refrigerating system is observed to check whether the refrigerating performance of the refrigerating system reaches the standard or not.

In the existing heat load device, the accuracy of a test result is affected because the cooling medium in the heat exchange flow channel is heated unevenly, and the test precision is reduced.

SUMMERY OF THE UTILITY MODEL

Therefore, a heat load device and a refrigeration performance testing device thereof are needed to be provided, wherein the heat load device can enable the refrigerant in the heat exchange flow channel to be heated uniformly.

A heat load device for testing the refrigeration performance of a refrigeration appliance, comprising: the heat exchange module is internally provided with a heat exchange flow channel communicated with the refrigeration equipment, and two ends of the heat exchange flow channel penetrate through the wall surface of the heat exchange module to form a circulation port; one end of the joint component is connected to the heat exchange module and communicated with the circulation port, and the other end of the joint component is connected to refrigeration equipment; and the heating units are arranged in the heat exchange module and are uniformly distributed on the upper side and the lower side of the heat exchange flow channel.

It can be understood that, this application is through evenly laying the upper and lower both sides of heat transfer runner heating unit to make refrigerant in the heat transfer runner is heated more evenly, and then guarantees the precision to refrigeration plant refrigeration capacity test.

In one embodiment, the heating unit includes a plurality of heating rods, the heat exchange flow channel includes a main flow channel for flowing a cooling medium, and an extending direction of the heating rods and an extending direction of the main flow channel are parallel to each other.

It can be understood that, by making the extending direction of the heating rod and the extending direction of the main flow channel parallel to each other, the heat conduction performance of the heating rod to the refrigerant in the heat exchange flow channel is further improved.

In one embodiment, the heat exchange module is provided with a plurality of heating grooves for mounting the heating rods, and the number of the heating grooves is greater than or equal to that of the heating rods.

It can be understood that the number of the heating grooves is larger than or equal to that of the heating rods, so that the number of the heating rods can be conveniently adjusted according to different conditions, and the temperature of the refrigerant in the heat exchange flow channel can be controlled.

In one embodiment, the heating rods positioned at the upper side and the lower side of the heat exchange flow channel are arranged in a staggered manner.

It can be understood that the heating rods positioned at the upper side and the lower side of the heat exchange flow channel are arranged in a staggered manner, so that the refrigerant in the heat exchange flow channel is heated more uniformly.

In one embodiment, at least two heating grooves for installing the heating units are formed in the side surface of the heat exchange module, an avoiding block is arranged on the side surface of the heat exchange module, the at least two heating grooves are respectively located on two sides of the avoiding block, the avoiding block is arranged in a protruding mode relative to the side surface of the heat exchange module, and the circulation port is formed in the avoiding block.

It will be appreciated that by providing the bypass block in a protruding manner with respect to the side of the heat exchange module, interference between the connection of the external connection to the flow opening and the installation of the heating unit into the heating channel is avoided.

In one embodiment, a guide groove communicated with the heating groove is formed in one side, close to the heating groove, of the avoidance block, and the guide groove is used for guiding the heating rod to be inserted into the heating groove.

In one embodiment, the circulation port includes an inlet for flowing in the refrigerant and an outlet for flowing out the refrigerant, and the inlet and the outlet are both opened on the same side of the heat exchange module.

It will be appreciated that by opening both the inlet and the outlet to the same side of the heat exchange module, design space for the heat load device is saved.

In one embodiment, the heat exchange flow channel is U-shaped; or the heat exchange flow channels are in a plurality of U-shaped shapes connected end to end.

It can be understood that the heat exchange flow channel is arranged in the heat exchange module in a U-shaped shape or a plurality of U-shaped shapes connected end to end, so that the heat exchange area of the refrigerant in the heat exchange flow channel is increased, and the heat exchange effect is further improved.

In one embodiment, the heat load device further comprises a first temperature sensor and a second temperature sensor, the first temperature sensor being mounted against the heating unit to detect the temperature of the heating unit; the second temperature sensor is attached to the surface of the heat exchange module to detect the temperature of the heat exchange module.

It is understood that whether the heating unit is normally operated is judged by mounting the first temperature sensor against the heating unit; the second temperature sensor is attached to the surface of the heat exchange module, so that temperature protection is formed on the heating unit, and when the first temperature sensor breaks down, the second temperature sensor can ensure that the heating unit cannot be damaged due to overhigh temperature, and the service life of the heating unit is prolonged.

In one embodiment, the heat load device further comprises a fixing assembly, the fixing assembly comprises a base block and a matching block, the base block and the matching block are matched with each other to fix the connector assembly, and the base block and the matching block are detachably connected with each other.

It will be appreciated that the removable connection between the base block and the mating block facilitates the installation and removal of the connector assembly and the securing assembly.

The utility model also provides a technical scheme as follows:

a refrigeration performance test device comprises a rack and a heat load device, wherein the heat load device is installed on the rack.

Compared with the prior art, the heating units are uniformly arranged on the upper side and the lower side of the heat exchange flow channel, so that the refrigerant in the heat exchange flow channel is heated more uniformly, and the precision of the refrigeration capacity test of the refrigeration equipment is further ensured.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a heat load device provided in the present application;

FIG. 2 is a schematic partially exploded view of a heat load apparatus provided herein;

fig. 3 is a schematic cross-sectional view of a heat exchange module provided herein.

Reference numerals: 100. a heat load device; 10. a heat exchange module; 11. a heat exchange flow channel; 111. a main flow passage; 112. a communication channel; 12. a flow port; 121. an inlet; 122. an outlet; 13. a heating tank; 14. avoiding the block; 141. a guide groove; 20. a joint assembly; 21. a joint; 22. a connecting pipe; 30. a heating unit; 31. heating a rod; 50. a fixing component; 51. a base block; 52. a matching block; 53. a heat insulating pad; 60. carrying out top thread; 61. a jackscrew hole; 70. a support frame.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "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 as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

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

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature or that the first feature is in indirect contact with the second feature via an intermediate medium. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, all technical and scientific terms used herein 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 present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, the present application provides a heat load device 100, and the heat load device 100 is applied to a refrigeration performance testing apparatus. Generally, after the manufacturing of the refrigeration equipment in the semiconductor industry is completed, an important testing step is performed: and testing the refrigerating capacity and the stability of the refrigerating equipment by using refrigerating performance testing equipment to ensure that the refrigerating equipment meets the use requirement. The testing method mainly comprises the steps of connecting the heat load device 100 in the refrigeration performance testing equipment with the refrigeration equipment to be tested, and checking whether the refrigeration capacity of the refrigeration equipment reaches the standard or not by observing the stability of the temperature of the inlet 122 and the outlet 122 of the refrigeration equipment.

In the existing heat load device, the accuracy of a test result is affected because the cooling medium in the heat exchange flow channel is heated unevenly, and the test precision is reduced.

For solving the problem that current heat load device exists, the utility model provides a heat load device 100 for test refrigeration plant's refrigeration performance, include: the heat exchange module 10 is internally provided with a heat exchange runner 11 communicated with the refrigeration equipment, and two ends of the heat exchange runner 11 penetrate through the wall surface of the heat exchange module 10 to form a circulation port 12; a connector assembly 20, one end of the connector assembly 20 is connected to the heat exchange module 10 and communicated with the circulation port 12, and the other end is connected to the refrigeration equipment; and the heating units 30 are disposed in the heat exchange module 10 and are uniformly arranged on the upper and lower sides of the heat exchange flow channel 11.

It should be noted that, in the present application, the heat load device 100 is communicated with the refrigeration equipment through the joint component 20, the refrigeration equipment cools the refrigerant and then circulates to the heat exchange flow channel 11 in the heat exchange module 10 through the joint component 20, the refrigerant in the heat exchange flow channel 11 is heated by the heating unit 30, the heated refrigerant flows out of the heat exchange module 10 and flows into the refrigeration equipment through the joint component 20, the refrigeration equipment cools the heated refrigerant again, and the above cycle is repeated. The cold-heat confrontation between the heat conduction load device 100 and the refrigeration equipment is used for testing whether the refrigeration equipment can normally control the temperature, so as to judge whether the refrigeration performance of the refrigeration equipment reaches the standard. The detection indexes for judging whether the refrigeration performance of the refrigeration equipment reaches the standard are as follows: the refrigerating performance of the refrigerating equipment can be tested by comparing whether the output temperature of the refrigerant in the refrigerating equipment is constant or whether the output temperature of the refrigerant in the refrigerating equipment is consistent with the set temperature.

In order to ensure the accuracy of the test result of the refrigeration performance of the refrigeration equipment, when the heating unit 30 heats the refrigerant in the heat exchanging channel 11, the refrigerant in the heat exchanging channel 11 needs to be heated uniformly and sufficiently, so as to ensure the temperature of the refrigerant in the heat exchanging channel 11 to rise. If only set up heating unit 30 in one of them side of heat transfer runner 11, then can make the opposite side of heat transfer runner 11 can't be heated, make the actual heating temperature of refrigerant in the heat transfer runner 11 can not reach the temperature that heating unit 30 needs to heat at last, not only wasted the energy, also reduced the accuracy to refrigeration plant refrigeration performance test result. Therefore, the utility model provides a heat load device 100 is through with the upper and lower both sides of heating unit 30 equipartitions in heat transfer runner 11 to make the refrigerant in the heat transfer runner 11 be heated more evenly, and then guarantee the accuracy to the refrigeration plant refrigeration capacity test result.

It should be noted that, in the present application, the heat exchange module 10 is substantially rectangular parallelepiped, and the upper and lower sides of the heat exchange flow channel 11 refer to: upper and lower sides of the heat exchange module 10, i.e., upper and lower sides in the height direction of the heat exchange module 10, with respect to the installation orientation of the heat loading device 100 in the refrigeration performance testing apparatus.

Further, the heat exchange channel 11 includes a main channel 111 for flowing the cooling medium and a communication channel 112 for communicating with the main channel 111, and the main channel 111 occupies most of the heat exchange channel 11 relative to the communication channel 112. This application sets up heat transfer runner 11 to be the U type shape or a plurality of end to end's U type shape. That is, the number of the main flow channels 111 may be multiple, each main flow channel 111 extends along the length direction of the heat exchange module 10, the main flow channels 111 are uniformly arranged along the width direction of the heat exchange module 10 at intervals, each adjacent main flow channel 111 is communicated through the communication channel 112, and the communication channel 112 may be set to be arc-shaped in order to enhance the smoothness of the refrigerant flowing through the heat exchange channel 11; in this way, the main flow channels 111 and the communication channels 112 are communicated with each other to form a plurality of U-shapes of the heat exchange flow channels 11. The heat exchange flow channel 11 is set to be in a snake shape, so that the heat exchange area of the refrigerant in the heat exchange flow channel 11 is increased, and the heat exchange effect is improved.

The U-shapes connected end to end may be substantially S-shaped, M-shaped, U-shaped, wave-shaped, bent, and the like, and have a multi-segment bent shape, as long as the heat exchange area of the refrigerant in the heat exchange flow channel 11 can be increased, which is not illustrated herein. Of course, in other embodiments, the main flow channel 111 and the communication channel 112 may be linear, and are not limited herein.

Preferably, the circulation port 12 includes an inlet 121 for inflow of the refrigerant and an outlet 122 for outflow of the refrigerant, and both the inlet 121 and the outlet 122 are opened on the same side of the heat exchange module 10. That is, the heat exchange flow channel 11 may be configured to have a shape similar to an M-shape, a U-shape, etc. that can ensure that the inlet 121 and the outlet 122 are on the same side of the heat exchange module 10, which saves more design space and makes the heat load device 100 occupy less space than the inlet 121 and the outlet 122 are on opposite sides of the heat exchange module 10.

It is noted that when the inlet 121 and the outlet 122 are disposed at opposite sides of the heat exchange module 10 and the heat exchange flow channel 11 is only one channel leading from the inlet 121 to the outlet 122, the heat exchange flow channel 11 does not include the communication channel 112.

In the present application, for the sake of simplifying the process, the ports 12 and the heat exchange flow passages 11 are formed by drilling.

As shown in fig. 2 and 3, in order to facilitate the installation of the heating unit 30 in the heat exchange module 10, the heat exchange module 10 is provided with a heating tank 13 for installing the heating unit 30, and the heating unit 30 is installed from the outside of the heat exchange module 10.

Further, the heat load device 100 further includes a first temperature sensor (not shown) and a second temperature sensor (not shown). The first temperature sensor is arranged in the heating groove 13 and is attached to the heating unit 30 so as to detect the temperature of the heating unit 30; the second temperature sensor is attached to the surface of the heat exchange module 10 to detect the temperature of the heat exchange module 10.

It should be noted that, the first temperature sensor is mounted in close contact with the heating unit 30, so as to determine whether the heating unit 30 is working normally; through pasting at heat exchange module 10 surface and establishing the second temperature sensor to form temperature protection to heating unit 30, when first temperature sensor broke down, the second temperature sensor can guarantee that heating unit 30 can not the high temperature cause the damage, with extension heating unit 30's life.

The outer wall surfaces of the heating unit 30 and the first temperature sensor are uniformly coated with heat-conducting silicone grease and then are loaded into the heating groove 13, the heating unit 30 can directly heat the heat-conducting silicone grease, and the heating efficiency of the heating unit 30 is greatly improved; in order to improve the installation firmness of the heating unit 30, the surface of the heating unit 30 is coated with heat conductive silicone and adhered to the inner surface of the heating tank 13. The heat conducting silica gel has a strong heat conducting capability, which is beneficial to reducing the loss of heat generated by the heating unit 30, and then the jackscrew 60 is extended into the jackscrew 60 hole on the heat exchange module 10 to fix the heating unit 30. Finally, the second temperature sensor is fixed on the surface of the heat exchange module 10 by using an inner hexagonal socket head screw. Specifically, the first temperature sensor is a cylindrical temperature sensor, and the second temperature sensor is a patch temperature sensor.

As shown in fig. 1 and 2, in one embodiment of the present invention, the heating unit 30 includes a plurality of heating rods 31. The plurality of heating rods 31 are uniformly arranged along the width direction of the heat exchange module 10, and the plurality of main flow channels 111 are uniformly arranged along the width direction of the heat exchange module 10 at intervals, so that the uniformity of heating of the refrigerant in the heat exchange flow channel 11 can be further enhanced by uniformly arranging the plurality of heating rods 31 along the width direction of the heat exchange module 10.

Further, the extending direction of the heating rod 31 is set to be parallel to the extending direction of the main flow channel 111, so that the heat conduction performance of the heating rod 31 to the refrigerant in the heat exchange channel 11 can be further improved, and the refrigerant in the heat exchange channel 11 can be better heated. Since each of the main flow passages 111 is extended along the longitudinal direction of the heat exchange module 10 in the present application, each of the heating rods 31 is also extended along the longitudinal direction of the heat exchange module 10.

It should be noted that the plurality of heating rods 31 are not only uniformly arranged on the upper and lower sides of the heat exchange flow channel 11 along the width direction of the heat exchange module 10, but also arranged on the left and right sides of the heat exchange module 10 along the length direction of the heat exchange module 10. The left and right sides here are also based on the actual installation orientation of the heat exchange module 10 in the refrigeration performance testing apparatus.

When the heating unit 30 is the heating rod 31, the number of the opened heating grooves 13 is greater than or equal to the number of the heating rods 31. It should be noted that, because the heating temperatures of the refrigerants in the heat exchanging channel 11 need to be different for different testing conditions of the refrigeration apparatus, the number of the heating grooves 13 is greater than or equal to the number of the heating rods 31, and the number of the heating rods 31 can be flexibly adjusted to adjust the heating temperatures, so as to control the temperatures of the refrigerants in the heat exchanging channel 11 under different conditions.

Specifically, the heating tank 13 is opened in the heat exchange module 10 along a direction parallel to the extending direction of the main flow channel 111, and any one of the tank walls of the heating tank 13 is not penetrated through the surface of the heat exchange module 10. Therefore, the heat of the heating rod 31 can be ensured to be wrapped inside the heat exchange module 10 by the groove wall of the heating groove 13, and the influence on the heat transfer effect of the heating rod 31 on the fluid in the heat exchange flow channel 11 caused by the penetration of the groove wall of the heating groove 13 and the surface of the heat exchange module 10 is avoided.

In order to further make the cooling medium in the heat exchange flow channel 11 heated uniformly, the heating rods 31 on the upper and lower sides of the heat exchange flow channel 11 are arranged in a staggered manner. That is to say, along the height direction of the heat exchange module 10, the projection of the heating rod 31 located on the upper side of the heat exchange flow channel 11 on the lower side of the heat exchange flow channel 11 falls between two adjacent heating rods 31 on the lower side of the heat exchange flow channel 11, so that the heat transfer positions of each heating rod 31 to the refrigerant in the heat exchange flow channel 11 are different, and the refrigerant in the heat exchange flow channel 11 is further heated uniformly.

The heating rod 31 mainly works on the principle that electric energy is converted into heat energy, and the heating rod 31 can be made of glass, stainless steel, quartz or ceramic. In order to reduce the manufacturing cost of the heat loading device 100 and ensure that the heat exchange module 10 has high thermal conductivity, the heat exchange module 10 is usually a metal block, such as an aluminum block, a copper block or a stainless steel block, but not limited thereto. The heating groove 13 is drilled in the metal block, and the heating rod 31 can be directly inserted into the heating groove 13 to heat the metal block. In order to facilitate the installation and fixation of the heating rod 31, the heating groove 13 may be formed in a circular hole shape.

Further, since the inlet 121 and the outlet 122 of the heat exchange module 10 are connected to the refrigerating apparatus through the connector assembly 20, the connection between the connector assembly 20 and the circulation port 12 may make it inconvenient to install the heating unit 30 in the heating tank 13, that is, interference may occur between the connection of the connector assembly 20 to the circulation port 12 and the installation of the heating unit 30 in the heating tank 13. To solve this problem, an avoidance block 14 is provided on a side surface of the heat exchange module 10, the avoidance block 14 is provided to protrude from the side surface of the heat exchange module 10, and the circulation port 12 is opened in the avoidance block 14. It should be noted that the avoidance block 14, which is disposed to protrude from the heat exchange module 10, is located between the upper and lower heating units 30.

In the embodiment that the heating unit 30 is the heating rod 31, since the heating rod 31 has a long bar shape, in order to further facilitate the installation of the heating rod 31 in the heating groove 13, guide grooves 141 communicating with the heating groove 13 are formed on both sides of the dodge block 14 close to the heating groove 13, and the guide grooves 141 are used for guiding the insertion of the heating rod 31 into the heating groove 13. The plurality of guide grooves 141 correspond to the heating grooves 13 one to one, and are spaced apart from each other.

It is noted that the heating unit 30 is not limited to be embodied in the form of the heating rod 31. In other embodiments, the heating unit 30 may further include a PTC heater (not shown), and the PTC heater is disposed in the heat exchange module 10 to heat the refrigerant in the heat exchange runner 11.

As shown in fig. 1, the heat load apparatus 100 further includes a fixing member 50. The fixing assembly 50 comprises a base block 51 and a matching block 52, the joint assembly 20 comprises a joint 21 and a connecting pipe 22, the connecting pipe 22 is used for communicating a refrigerant in the heat exchange flow channel 11 to the refrigeration equipment, a joint between the connecting pipe 22 and the heat exchange module 10, a joint between the connecting pipe 22 and the connecting pipe 22, and a joint between the connecting pipe 22 and the refrigeration equipment are connected by using the joint 21, and through the arrangement of the joint 21, the disassembly and assembly of the connecting pipe 22 are facilitated, and the connection firmness degree of the connecting pipe 22 can be improved. Wherein, the connecting tube 22 is made of copper tube.

Further, the base block 51 and the fitting block 52 are fitted to fix the joint between the joint 21 and the connection pipe 22, thereby further enhancing the connection strength of the joint 21 to the connection pipe 22.

Wherein the base block 51 and the mating block 52 are detachably connected. The base block 51 and the fitting block 52 are detachably connected to each other, so that the joint assembly 20 and the fixing assembly 50 can be easily assembled and disassembled.

In one embodiment, the number of base blocks 51 is one and the number of mating blocks 52 is two. The base block 51 is placed between the two connection pipes 22 connected to the inlet 121 and the outlet 122, and the two fitting blocks 52 are respectively butted against the base block 51 from the left and right sides of the base block 51, thereby clamping and fixing the two connection pipes 22.

In another embodiment, the number of base blocks 51 and mating blocks 52 is one. The base block 51 is placed below the two connection pipes 22 connecting the inlet 121 and the outlet 122, and the fitting block 52 is inserted downward from above the two connection pipes 22 and is abutted against the base block 51, thereby clamping and fixing the two connection pipes 22.

Of course, the base block 51 and the matching block 52 may have other matching manners as long as the clamping fixation of the joint assembly 20 can be achieved, and are not limited herein.

Further, the fixing assembly 50 further includes a heat insulation pad 53, one end of the heat insulation pad 53 is connected to the base block 51 and/or the matching block 52, and the other end of the heat insulation pad 53 is in contact with the rack on which the heat loading device 100 is installed, so as to prevent heat generated by the refrigerant in the connecting pipe 22 from being transferred to the platform of the rack and causing heat loss.

As shown in fig. 1, a plurality of support frames 70 are disposed at the bottom of the heat exchange module 10, and the plurality of support frames 70 are distributed at different positions of the bottom of the heat exchange module 10, so as to be beneficial to maintaining a certain distance between the heat exchange module 10 and a rack platform, and avoid heat loss caused by heat generated by the heat exchange module 10 being transferred to the rack platform.

The utility model provides a heat load device 100 evenly lays heating unit 30 through the upper and lower both sides at heat transfer runner 11 to make the refrigerant in the heat transfer runner 11 be heated more evenly, and then guarantee the precision to the test of refrigeration plant refrigeration capacity.

The utility model also provides a refrigeration capability test equipment (not shown), refrigeration capability test equipment includes frame and heat load device 100, and heat load device 100 installs in the frame. The cooling performance test apparatus also has the same advantages as the heat load device 100.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (11)

1. A heat load device for testing a refrigerating performance of a refrigerating apparatus, comprising:

the refrigeration system comprises a heat exchange module (10), a heat exchange flow channel (11) communicated with refrigeration equipment is formed in the heat exchange module, and two ends of the heat exchange flow channel (11) penetrate through the wall surface of the heat exchange module (10) to form a circulation port (12);

a connector assembly (20), one end of the connector assembly (20) being connected to the heat exchange module (10) and communicating with the circulation port (12), and the other end being connected to a refrigeration device;

and the heating units (30) are arranged in the heat exchange module (10) and are uniformly distributed on the upper side and the lower side of the heat exchange flow channel (11).

2. A heat load device according to claim 1, wherein the heating unit (30) comprises a plurality of heating rods (31), the heat exchange flow channel (11) comprises a main flow channel (111) for flowing a cooling medium, and an extending direction of the heating rods (31) and an extending direction of the main flow channel (111) are parallel to each other.

3. The heat load device according to claim 2, wherein the heat exchange module (10) is provided with a plurality of heating grooves (13) for mounting the heating rods (31), and the number of the heating grooves (13) is greater than or equal to the number of the heating rods (31).

4. A heat load device according to claim 2, wherein said heating rods (31) positioned at upper and lower sides of said heat exchange flow channel (11) are arranged alternately with each other.

5. The heat load device according to claim 2, wherein at least two heating grooves (13) for mounting the heating unit (30) are formed in a side surface of the heat exchange module (10), an avoidance block (14) is formed in the side surface of the heat exchange module (10), the at least two heating grooves (13) are respectively located on both sides of the avoidance block (14), the avoidance block (14) is provided to protrude from the side surface of the heat exchange module (10), and the circulation port (12) is formed in the avoidance block (14).

6. The heat load device according to claim 5, wherein a guide groove (141) communicating with the heating groove (13) is formed in one side of the avoidance block (14) close to the heating groove (13), and the guide groove (141) is used for guiding the heating rod (31) to be inserted into the heating groove (13).

7. A heat load device according to claim 1, wherein the circulation port (12) includes an inlet (121) into which the refrigerant flows and an outlet (122) from which the refrigerant flows, and the inlet (121) and the outlet (122) are opened on the same side of the heat exchange module (10).

8. A heat load device according to claim 1, wherein the heat exchanging flow channel (11) is U-shaped;

or the heat exchange flow channels (11) are in a plurality of U-shaped shapes connected end to end.

9. The heat load device according to claim 1, further comprising a first temperature sensor and a second temperature sensor, the first temperature sensor being mounted against the heating unit (30) to detect a temperature of the heating unit (30); the second temperature sensor is attached to the surface of the heat exchange module (10) to detect the temperature of the heat exchange module (10).

10. The heat load device according to claim 1, further comprising a fixing assembly (50), wherein the fixing assembly (50) comprises a base block (51) and a fitting block (52), the base block (51) and the fitting block (52) being fitted with each other to fix the terminal assembly (20), wherein the base block (51) and the fitting block (52) are detachably connected with each other.

11. Refrigeration performance testing apparatus comprising a rack and a heat load device according to any one of claims 1 to 10, the heat load device being mounted on the rack.

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