CN216594198U - Refrigerating system performance testing device and refrigerating system performance testing system - Google Patents

Abstract

The utility model relates to a performance testing device of a refrigerating system and the performance testing system of the refrigerating system. The first heat exchange module is used for being connected with refrigeration equipment and can exchange heat with a refrigerant output by the refrigeration equipment. The heating module is connected with the first heat exchange module, and the heating module can exchange heat with the first heat exchange module. The control module is electrically connected with the heating module to control the heating power of the heating module. The first temperature sensor is connected with the first heat exchange module to measure the temperature of the first heat exchange module. The performance testing device for the refrigerating system solves the problem that the refrigerating capacity of the refrigerating system cannot be accurately calculated by the conventional refrigerating system testing device, so that the refrigerating capacity of the refrigerating system can be quantitatively evaluated.

Description

Refrigerating system performance testing device and refrigerating system performance testing system

Technical Field

The utility model relates to the field of performance test of a refrigerating system, in particular to a performance test device of the refrigerating system and a performance test system of the refrigerating system.

Background

In the technical field of semiconductor manufacturing, the refrigerating capacity and stability of a refrigerating system have great influence on the stability and test precision of electronic element performance test.

After the refrigeration system is manufactured, the refrigeration capacity of the refrigeration system is usually tested to ensure that the refrigeration system reaches the use requirement. Usually, an external load is added to the refrigeration system, and whether the refrigeration capacity of the refrigerant system reaches the standard is checked by observing the temperature of an inlet and an outlet of the refrigeration system. However, the above-mentioned test method cannot accurately calculate the cooling capacity of the refrigeration system, so as to quantitatively evaluate the cooling capacity of the refrigeration system.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a performance testing apparatus for a refrigeration system and a performance testing system for a refrigeration system, which solve the problem that the existing testing apparatus for a refrigeration system cannot accurately calculate the cooling capacity of the refrigeration system, so as to quantitatively evaluate the cooling capacity of the refrigeration system.

The utility model provides a performance testing device for a refrigerating system, which comprises a first heat exchange module, a heating module, a control module and a first temperature sensor. The first heat exchange module is used for being connected with refrigeration equipment and can exchange heat with a refrigerant output by the refrigeration equipment. The heating module is connected with the first heat exchange module, and the heating module can exchange heat with the first heat exchange module. The control module is electrically connected with the heating module to control the heating power of the heating module. The first temperature sensor is connected with the first heat exchange module to measure the temperature of the first heat exchange module.

In an embodiment of the utility model, the control module comprises a temperature controller and a relay, the heating module is connected with the power supply through the relay, and the temperature controller is electrically connected with the relay; the temperature controller can output a duty ratio signal to the relay so as to control the on-off time of the relay. So set up, be favorable to improving control module's control accuracy.

In an embodiment of the utility model, the heating module includes a plurality of heating rods, the first heat exchange module is made of a heat conductive material, and the first heat exchange module is provided with a heating slot corresponding to the heating rods, and the heating rods are installed in the heating slot. So set up, be favorable to improving the heating efficiency of heating module, reduce the structure complexity of heating module.

In an embodiment of the utility model, the first temperature sensor is a patch sensor, and the first temperature sensor is installed on a surface of the first heat exchange module; and/or the first temperature sensor is a cylindrical sensor and is arranged in the heating groove. Therefore, the measurement accuracy of the first temperature sensor is improved.

In an embodiment of the utility model, the plurality of heating grooves are uniformly distributed on both sides of the first heat exchange module. Therefore, the first heat exchange module is heated uniformly.

In an embodiment of the present invention, the first heat exchange module is made of a heat conductive material, and a heat exchange channel is disposed in the first heat exchange module, and openings at two ends of the heat exchange channel are respectively used for flowing in a refrigerant and flowing out of the refrigerant. So set up, be favorable to improving the heat exchange efficiency of first heat exchange module and refrigeration plant input refrigerant.

In an embodiment of the utility model, the apparatus for testing performance of a refrigeration system further includes a second heat exchange module, a fluid output module, and a second temperature sensor. The second heat exchange module is used for being connected with the refrigeration equipment and can exchange heat with a refrigerant output by the refrigeration equipment. The fluid output module is connected with the second heat exchange module, and fluid medium output by the fluid output module can enter the outlet end of the second heat exchange module from the inlet end of the second heat exchange module and exchange heat with the second heat exchange module. The second temperature sensors are respectively arranged at the inlet end and the outlet end of the second heat exchange module so as to respectively detect the temperature of the fluid medium entering the second heat exchange module from the inlet end and the temperature of the fluid medium leaving the second heat exchange module from the outlet end.

In an embodiment of the utility model, the second heat exchange module includes a heat exchanger, the second heat exchange module exchanges heat with the fluid medium through the heat exchanger, and the heat exchanger is used for exchanging heat with a refrigerant output by the refrigeration equipment. So set up, be favorable to improving the heat exchange efficiency of second heat exchange module.

In one embodiment of the present invention, the fluid output module includes a compressed air source, a pressure reducing valve, and a flow meter. The compressed gas source is used for providing compressed gas. The pressure reducing valve is connected with a compressed gas source and used for reducing the gas pressure of the compressed gas, and the flow meter is arranged between the pressure reducing valve and the second heat exchange module and used for detecting the gas flow.

The utility model also provides a performance test system of the refrigerating system, which comprises refrigerating equipment, a rack and the performance test device of the refrigerating system in any one of the embodiments, wherein the performance test devices of the refrigerating system are arranged on the rack.

According to the refrigerating system performance testing device and the refrigerating system performance testing system, the refrigerating equipment and the heating module can exchange heat with the first heat exchange module, and the first temperature sensor can measure the temperature of the first heat exchange module. Therefore, the refrigeration equipment and the heating module can synchronously exchange heat with the first heat exchange module, the heating power of the heating module is adjusted in real time through the control module, and finally the temperature of the first heat exchange module measured by the first temperature sensor is kept at a constant value. At this time, the heat generated by the heating module is in thermal balance with the refrigerant output by the refrigeration equipment, that is, the refrigerating capacity of the refrigeration equipment can be measured through the stool and urine of the heating power of the heating module. Obviously, the performance testing device for the refrigerating system provided by the utility model can accurately calculate the refrigerating capacity of the refrigerating system, so that the refrigerating capacity of the refrigerating system can be quantitatively evaluated.

Drawings

Fig. 1 is a first schematic structural diagram of a performance testing system of a refrigeration system according to an embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of a performance testing system of a refrigeration system according to an embodiment of the present invention;

FIG. 3 is a circuit diagram of a refrigeration system performance testing system according to an embodiment of the present invention;

fig. 4 is a partial exploded view of a performance testing device of a refrigeration system according to an embodiment of the present invention;

fig. 5 is a partial exploded view of a performance testing apparatus of a refrigeration system according to an embodiment of the utility model.

Reference numerals: 100. a refrigeration device; 200. a frame; 201. mounting a plate; 300. a pipeline; 301. a joint; 400. a power source; 401. opening in the air; 500. an industrial personal computer; 600. a dryer; 700. a water chiller; 1. a first heat exchange module; 11. a heating tank; 12. a heat exchange channel; 13. a support frame; 2. a heating module; 21. a heating rod; 3. a control module; 31. a relay; 32. a temperature controller; 4. a first temperature sensor; 5. a second heat exchange module; 51. a heat exchanger; 52. a protective cover; 6. a second temperature sensor; 7. a fluid output module; 71. a pressure reducing valve; 72. a flow meter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

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 such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. 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.

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 an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

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 invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-2, the present invention provides a performance testing system for a refrigeration system, which includes a refrigeration device 100, a rack 200, and a plurality of performance testing apparatuses for the refrigeration system mounted on the rack 200. Specifically, the refrigeration apparatus 100 is connected to a water chiller 700, and the water chiller 700 is configured to provide a refrigerant to the refrigeration apparatus 100. The rack 200 is a cabinet body with multiple layers of mounting plates 201, a certain number of refrigerating system performance testing devices are mounted on each layer of mounting plate 201, and each refrigerating system performance testing device works independently. Furthermore, the refrigeration system performance testing device is communicated with the refrigeration equipment 100 through a pipeline 300, the refrigerant output by the refrigeration equipment 100 enters the refrigeration system performance testing device through the pipeline 300, and the refrigerant flows back to the refrigeration equipment 100 from the pipeline 300. Pipeline 300 is usually the copper pipe, and the junction of pipeline 300 is equipped with connects 301, so, through setting up connect 301, be favorable to the dismouting of pipeline 300 and can improve the firm in connection degree of pipeline 300.

As shown in fig. 3 to 4, the present invention provides a performance testing apparatus for a refrigeration system, which includes a first heat exchange module 1, a heating module 2, a control module 3, and a first temperature sensor 4. The first heat exchange module 1 is used for connecting the refrigeration equipment 100, and the first heat exchange module 1 can exchange heat with a refrigerant output by the refrigeration equipment 100. The heating module 2 is connected with the first heat exchange module 1, and the heating module 2 can exchange heat with the first heat exchange module 1. The control module 3 is electrically connected to the heating module 2 to control the heating power of the heating module 2. The first temperature sensor 4 is connected to the first heat exchange module 1 to measure the temperature of the first heat exchange module 1.

Since both the refrigerating apparatus 100 and the heating module 2 can exchange heat with the first heat exchange module 1, and the first temperature sensor 4 can measure the temperature of the first heat exchange module 1. Therefore, the refrigeration device 100 and the heating module 2 can synchronously exchange heat with the first heat exchange module 1, and the control module 3 adjusts the heating power of the heating module 2 in real time, so that the temperature of the first heat exchange module 1 measured by the first temperature sensor 4 is finally maintained at a constant value. At this time, the heat generated by the heating module 2 is in thermal balance with the refrigerant output by the refrigeration equipment 100, that is, the cooling capacity of the refrigeration equipment 100 can be measured by the stool and urine of the heating power of the heating module 2. Obviously, the performance testing device for the refrigerating system provided by the utility model can accurately calculate the refrigerating capacity of the refrigerating system, so that the refrigerating capacity of the refrigerating system can be quantitatively evaluated. And, the more stable the cooling capacity of the refrigeration system, the more stable the temperature value displayed by the first temperature sensor 4. Therefore, the stability of the temperature value displayed by the first temperature sensor 4 can be used to measure the stability of the operation of the refrigeration system. In conclusion, the performance testing device for the refrigerating system provided by the utility model solves the problem that the refrigerating capacity of the refrigerating system cannot be accurately calculated by the conventional refrigerating system testing device, so that the refrigerating capacity of the refrigerating system can be quantitatively evaluated.

In order to improve the control accuracy of the control module 3, in an embodiment, as shown in fig. 3, the control module 3 comprises a relay 31, the heating module 2 is connected to a power supply 400 through the relay 31, and the power supply 400 is provided with an air switch 401. The control module 3 further includes a temperature controller 32, the temperature controller 32 is electrically connected to the relay 31, and the temperature controller 32 outputs a duty signal to the relay 31 to control the on/off time of the relay 31. "duty cycle" refers to the proportion of the time that power is applied to the total time in a pulse cycle. When the relay 31 is in the on state, the heating module 2 is in the on state and generates the heating power, and when the relay 31 is in the off state, the heating module 2 is in the off state and does not generate the heating power. Therefore, the temperature controller 32 outputs a duty signal to the relay 31, so that the on/off time of the relay 31 can be controlled, and the heating power of the heating module 2 can be controlled. In the predetermined time period T, the duty ratio of the heating module 2 is defined as m, the heating power of the heating module 2 is defined as P, and the total heat generated by the heating module 2 is defined as Q, and the total heat generated by the heating module 2 in the predetermined time period T can be calculated by using the formula Q.

Further, the relay 31 may be a solid-state relay, which is a contactless switching device composed entirely of solid-state electronic components, and the solid-state relay may achieve the purpose of turning on and off the circuit without contact and spark by using the switching characteristics of semiconductor devices of the electronic components (such as switching transistors and triacs). Thus, the solid-state relay has very high reliability.

Further, as shown in fig. 1-2, the temperature controller 32 is connected to the industrial personal computer 500, which is beneficial for an operator to operate the industrial personal computer 500 to send a control command to the temperature controller 32. The industrial personal computer 500 is generally disposed at the topmost end of the rack 200, thus facilitating an operator to operate the industrial personal computer 500.

In order to improve the heating efficiency of the heating module 2, the structural complexity of the heating module 2 is reduced. In an embodiment, as shown in fig. 4, the heating module 2 includes a plurality of heating rods 21, the first heat exchange module 1 is made of a heat conductive material, the first heat exchange module 1 is provided with a heating slot 11 corresponding to the heating rods 21, and the heating rods 21 are installed in the heating slot 11. The heating rod 21 can directly heat the heat conduction material, and the heating efficiency of the heating module 2 is greatly improved. And, the heating rod 21 can be directly arranged in the heating tank 11, greatly reducing the difficulty of assembling the heating module 2 with the first heat exchange module 1. Specifically, the heating rods 21 have a rated power of 200W, and the relays 31 electrically connect the plurality of heating rods 21, respectively, and control the turning on and off of all the heating rods 21 at the same time.

In order to improve the installation firmness of the heating rod 21, the surface of the heating rod 21 is coated with heat conductive silica gel and adhered to the inner surface of the heating tank 11. The heat conducting silica gel has strong heat conducting capacity, and is beneficial to reducing the loss of heat generated by the heating rod 21.

Further, the heating rod 21 mainly works on the principle of converting electric energy into heat energy, and the material of the heating rod 21 may be glass, stainless steel, quartz or ceramic. In order to reduce the manufacturing cost of the performance testing device of the refrigeration system and ensure that the first heat exchange module 1 has high thermal conductivity, the first heat exchange module 1 is usually a metal block, such as an aluminum block, a copper block or a stainless steel block, but is not limited thereto. And, the metal block processes the heating groove 11 by casting or turning, and the heating rod 21 can be directly inserted into the heating groove 11 to heat the metal block. In order to facilitate the installation and fixation of the heating rod 21, the heating groove 11 may be formed in a circular hole shape.

Furthermore, as shown in fig. 4, the supporting frames 13 are disposed at the bottom of the first heat exchange module 1, and the supporting frames 13 are distributed at different positions of the bottom of the first heat exchange module 1, so that the first heat exchange module 1 and the mounting plate 201 can be kept at a certain distance, and the heat generated by the first heat exchange module 1 is prevented from being transferred to the mounting plate 201 and being lost.

In order to improve the heat exchange efficiency between the first heat exchange module 1 and the refrigerant input into the refrigeration equipment 100. In an embodiment, as shown in fig. 4, a heat exchange channel 12 is disposed in the first heat exchange module 1, and openings at two ends of the heat exchange channel 12 are respectively used for flowing in the refrigerant and flowing out of the refrigerant. Specifically, the heat exchange channel 12 is U-shaped, and two ends of the U-shaped heat exchange channel 12 are respectively used for flowing in the refrigerant and flowing out the refrigerant.

In order to improve the measurement accuracy of the first temperature sensor 4, in an embodiment, the first temperature sensor 4 is a patch sensor, and the first temperature sensor 4 is mounted on a surface of the first heat exchange module 1. Of course, in another embodiment, the first temperature sensor 4 may also be a cylinder type sensor, and the first temperature sensor 4 is installed in the heating tank 11.

In order to ensure that the first heat exchange module 1 is heated uniformly, in an embodiment, as shown in fig. 4, a plurality of heating grooves 11 are uniformly distributed on both sides of the first heat exchange module 1. Specifically, the first heat exchange module 1 is an aluminum block, and 15 heating grooves 11 are formed in the aluminum block, wherein 7 heating grooves 11 are distributed at one end of the aluminum block, and the remaining 8 heating grooves 11 are distributed at the other end of the aluminum block. The 15 heating rods 21 are respectively and correspondingly arranged in the 15 heating grooves 11, and a cylindrical temperature sensor is arranged in one heating groove 11. Of course, the number of the heating rods 21 and the corresponding heating grooves 11 may be other, and is not limited herein, depending on the actual situation.

In one embodiment, as shown in fig. 3 and 5, the performance testing apparatus of the refrigeration system further includes a second heat exchange module 5, a fluid output module 7, and a second temperature sensor 6. The second heat exchange module 5 is used for connecting the refrigeration equipment 100, and the second heat exchange module 5 can exchange heat with the refrigerant output by the refrigeration equipment 100. The fluid output module 7 is connected with the second heat exchange module 5, and the fluid medium output by the fluid output module 7 can enter the outlet end of the second heat exchange module 5 from the inlet end of the second heat exchange module 5 and exchange heat with the second heat exchange module 5. Second temperature sensors 6 are respectively provided at the inlet end and the outlet end of the second heat exchange module 5 to respectively detect the temperature of the fluid medium entering the second heat exchange module 5 from the inlet end and the temperature of the fluid medium exiting the second heat exchange module 5 from the outlet end.

The second heat exchange module 5 can exchange heat with the refrigerant output by the refrigeration equipment 100, and therefore, the refrigerant output by the refrigeration equipment 100 takes away heat on the second heat exchange module 5, so that the temperature of the second heat exchange module 5 is reduced. And the fluid medium output by the fluid output module 7 can enter the outlet end of the second heat exchange module 5 from the inlet end of the second heat exchange module 5 and exchange heat with the second heat exchange module 5. Therefore, the fluid medium output by the fluid output module 7 transfers its own heat to the second heat exchange module 5 in the process of passing through the second heat exchange module 5 until the fluid medium and the second heat exchange module 5 reach a temperature equilibrium state. And the inlet end and the outlet end of the second heat exchange module 5 are both provided with a second temperature sensor 6, so that the second temperature sensors 6 can respectively detect the temperature of the fluid medium entering the second heat exchange module 5 from the inlet end and the temperature of the fluid medium leaving the second heat exchange module 5 from the outlet end, thereby calculating the temperature difference Δ T of the fluid medium. The volume V of the fluid medium, the density s of the fluid medium, and the specific heat capacity C of the fluid medium are known, and therefore, the heat Q of the fluid medium neutralized by the second heat exchange module 5 can be calculated by a formula. As can be seen from the above formula, the larger Δ T, the more heat Q the fluid medium is neutralized by the second heat exchange module 5, which represents the stronger the refrigerating capacity of the refrigerating apparatus 100.

In order to improve the heat exchange efficiency of the second heat exchange module 5, in an embodiment, as shown in fig. 5, the second heat exchange module 5 includes a heat exchanger 51, the second heat exchange module 5 performs heat exchange with the fluid medium through the heat exchanger 51, and the heat exchanger 51 is configured to perform heat exchange with the refrigerant output by the refrigeration equipment 100. Specifically, the dryer 600 is connected to the heat exchanger 51, and the heat exchanger 51 is a plate heat exchanger. The plate heat exchanger has smaller volume, which is beneficial to reducing the space occupied by the heat exchanger 51 and improving the compact structure degree of the performance testing device of the whole refrigerating system. In order to protect the heat exchanger 51, a protective cover 52 is usually disposed on the outer side of the heat exchanger 51.

To provide a stable fluid medium, in one embodiment, as shown in fig. 1 and 2, the fluid output module 7 includes a compressed air source (not shown), a pressure relief valve 71, and a flow meter 72. The compressed gas source is used for providing compressed gas. The pressure reducing valve 71 is connected with a compressed air source and used for reducing the air pressure of the compressed air, and the flow meter 72 is arranged between the pressure reducing valve 71 and the second heat exchange module 5 and used for detecting the air flow. The compressed gas provided by the compressed gas source is cut off and reduced by the pressure reducing valve 71 and then delivered to the second heat exchange module 5 through the pipeline 300, and the flow meter 72 arranged between the pressure reducing valve 71 and the second heat exchange module 5 can detect the flow rate of the gas. The compressed gas source is wide, the use cost is low, the refrigerating capacity of the refrigerating equipment 100 is calculated through the brief introduction of the decompressed compressed gas, and the manufacturing cost of the performance testing device of the refrigerating system is favorably reduced.

In other embodiments, the fluid output module 7 may further directly obtain the gas from the atmosphere as the fluid medium through a gas pump (not shown), and the used gas may be directly discharged to the atmosphere, so that the manufacturing cost of the refrigeration system performance testing apparatus is further reduced.

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

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (10)

1. A performance testing device for a refrigerating system is characterized by comprising

The first heat exchange module (1) is used for being connected with refrigeration equipment (100), and the first heat exchange module (1) can exchange heat with a refrigerant output by the refrigeration equipment (100);

the heating module (2) is connected with the first heat exchange module (1), and the heating module (2) can exchange heat with the first heat exchange module (1);

a control module (3) electrically connected to the heating module (2) for controlling the heating power of the heating module (2); and

a first temperature sensor (4) connected to the first heat exchange module (1) to measure the temperature of the first heat exchange module (1).

2. The performance testing device of the refrigeration system as recited in claim 1, characterized in that the control module (3) comprises a temperature controller (32) and a relay (31), the heating module (2) is connected with a power supply (400) through the relay (31), and the temperature controller (32) is electrically connected with the relay (31); the temperature controller (32) can output a duty ratio signal to the relay (31) so as to control the on-off time of the relay (31).

3. The performance testing device of the refrigerating system according to claim 1, wherein the heating module (2) comprises a plurality of heating rods (21), the first heat exchange module (1) is made of a heat conducting material, the first heat exchange module (1) is provided with a heating slot (11) corresponding to the heating rods (21), and the heating rods (21) are installed in the heating slot (11).

4. The performance testing device of the refrigerating system as recited in claim 3, characterized in that the first temperature sensor (4) is a patch sensor, and the first temperature sensor (4) is mounted on the surface of the first heat exchange module (1); and/or the first temperature sensor (4) is a cylindrical sensor, and the first temperature sensor (4) is arranged in the heating groove (11).

5. The performance testing device of a refrigerating system as recited in claim 3, characterized in that a plurality of said heating slots (11) are evenly distributed on both sides of said first heat exchange module (1).

6. The performance testing device of the refrigeration system according to claim 1, wherein the first heat exchange module (1) is made of a heat conducting material, a heat exchange channel (12) is disposed in the first heat exchange module (1), and openings at two ends of the heat exchange channel (12) are respectively used for flowing in and flowing out of a refrigerant.

7. The performance testing apparatus of claim 1, further comprising

The second heat exchange module (5) is used for being connected with refrigeration equipment (100), and the second heat exchange module (5) can exchange heat with a refrigerant output by the refrigeration equipment (100);

the fluid output module (7) is connected with the second heat exchange module (5), and the fluid medium output by the fluid output module (7) can enter the outlet end of the second heat exchange module (5) from the inlet end of the second heat exchange module (5) and exchange heat with the second heat exchange module (5); and

and the second temperature sensors (6) are respectively arranged at the inlet end and the outlet end of the second heat exchange module (5) so as to respectively detect the temperature of the fluid medium entering the second heat exchange module (5) from the inlet end and the temperature of the fluid medium leaving the second heat exchange module (5) from the outlet end.

8. The performance testing device of the refrigeration system according to claim 7, wherein the second heat exchange module (5) comprises a heat exchanger (51), the second heat exchange module (5) exchanges heat with the fluid medium through the heat exchanger (51), and the heat exchanger (51) is used for exchanging heat with a refrigerant output by the refrigeration equipment (100).

9. Refrigeration system performance testing device according to claim 7, characterized in that the fluid output module (7) comprises

A compressed gas source for providing compressed gas;

a pressure reducing valve (71) connected to the compressed gas source for reducing the pressure of the compressed gas; and

and the flow meter (72) is arranged between the pressure reducing valve (71) and the second heat exchange module (5) and is used for detecting the gas flow.

10. A refrigeration system performance testing system comprising a refrigeration appliance (100), a rack (200) and a refrigeration system performance testing apparatus according to any one of claims 1 to 9, a plurality of said refrigeration system performance testing apparatuses being mounted on said rack (200).

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