Energy storage type heating and cooling test equipment and test method

Abstract

The invention relates to the field of testing equipment, in particular to energy storage type heating and cooling testing equipment which comprises a testing groove and a compressor, an air return flow channel and a first heat exchange mechanism for transferring energy in the air return flow channel are arranged in the testing groove, and the compressor provides a high-pressure and high-temperature gaseous phase change material for the first heat exchange mechanism. The air conditioner further comprises an energy storage tank and a switching valve, a second exchange mechanism is arranged in the energy storage tank, and the compressor selectively communicates with one of the first heat exchange mechanism and the second heat exchange mechanism through the switching valve. According to the heating and cooling test equipment, the switching valve is used and the second heat exchange mechanism is applied in the energy storage tank, so that the compressor gives consideration to two means of precooling and refrigeration at the same time, meanwhile, the problem that the compressor needs high power can be solved, and energy loss is fully optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of test equipment, in particular to a kind of energy storage type temperature rising and falling test equipment and test method. BACKGROUND

[0002] Temperature rising and falling test equipment is used to test the change of product characterization under different environments, and also can be used to test the working condition of product after long time use under different environments.

[0003] Traditional temperature rising and falling test equipment needs to continuously send cold air into the test tank when encountering the cooling link, so that the indoor temperature of the test tank reaches the specified value.

[0004] As can be seen, this structure needs to use a high-power compressor, and only in this case can the corresponding refrigeration efficiency be achieved. However, the use of a high-power compressor is costly and energy-consuming. SUMMARY

[0005] To solve the above problems, the present application provides an energy storage type temperature rising and falling test equipment with energy storage refrigeration means, which reduces the requirement for compressor power by superimposing the cold air in the test tank.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: a test method, characterized by comprising the following steps:

[0007] S1, when the test tank is at constant temperature, the internal temperature of the test tank is obtained, and according to the set environmental temperature, the compressor and the energy storage evaporator in the energy storage tank form a closed loop, and the energy storage evaporator in the energy storage tank is heat-exchanged by independent circulation;

[0008] S2, after the device is removed from the constant temperature preservation link, the compressor is switched by the switching valve, and the test evaporator in the test tank forms a closed loop, and the test evaporator in the test tank is heat-exchanged by independent circulation;

[0009] S3, according to the power of the compressor, the maximum temperature instantaneous rate extreme point of the test tank per unit time is obtained, and when the maximum temperature instantaneous rate extreme point is reached, the switch valve between the energy storage tank and the test tank is opened, so that the first fluid in the energy storage tank and the second fluid in the test tank are superimposed, and the environmental temperature in the test tank reaches the specified value.

[0010] The method mainly highlights an energy storage step, through pre-energy storage, the energy conversion efficiency of the low-power compressor in unit time is compensated by the conduction compensation mechanism, and the two air flows are superimposed, and the result shows that the calibrated environmental temperature can be reached in the calibrated time, therefore, the method using the low-power compressor still meets the required conditions of the test environment, greatly reduces the overall use cost and power demand, and achieves the effects of energy saving and emission reduction.

[0011] As in the refrigeration process, the working temperature in the test tank is 100 DEG, and the heat exchange in the energy storage tank has been completed at-60 DEG, in order to achieve rapid cooling, the compressor is cooled in the test tank through the switching valve, at this time, the performance of the compressor is transferred to the refrigeration link of the test tank, assuming that the cooling efficiency of the test evaporation piece is obviously reduced after-20 DEG (the maximum instantaneous cooling rate extreme point), at this time, the switching valve is opened to release the stored cold flow, in this way, the same compressor not only achieves a precooling effect, but also realizes a refrigeration effect, and the stored cold flow and the refrigeration cold flow are superimposed.

[0012] The application can also be used for temperature rise, and the principle of temperature rise is the same as that of temperature drop, and the specific principle is referred to the above-mentioned temperature drop process.

[0013] In the energy storage link, the first circulating air drum stirs the air flow in the energy storage tank, so that the temperature of the internal air flow is more uniform.

[0014] In the test tank, the second circulating air drum stirs the air flow in the test tank, so that the temperature of the internal air flow is more uniform.

[0015] An energy storage type temperature rise and drop test equipment comprises a test tank and a compressor, the test tank has a return air flow channel and a first heat exchange mechanism for energy transmission in the return air flow channel, the compressor provides high-pressure and high-temperature gaseous phase change material to the first heat exchange mechanism, and the temperature rise and drop test equipment is characterized in that the temperature rise and drop test equipment further comprises an energy storage tank and a switching valve, the energy storage tank comprises a second heat exchange mechanism, and the compressor is in selective communication with the first heat exchange mechanism and the second heat exchange mechanism through the switching valve.

[0016] The application has the following beneficial effects:

[0017] The temperature rise and drop test equipment uses the switching valve and the second heat exchange mechanism in the energy storage tank, so that the compressor simultaneously uses precooling and refrigeration, and the problem of high power consumption of the compressor is solved, and the energy loss is fully optimized.

[0018] The present application comprises a shell, a test groove and an energy storage groove are arranged in the shell, a cavity between the test groove and the energy storage groove is reserved in the shell, a switch valve is arranged in the cavity for opening or closing the heat exchange between the test groove and the energy storage groove, preferably, a plurality of second air holes are arranged on the side of the cavity facing the test groove, and the switch valve is arranged on the side of the cavity facing the energy storage groove, when the valve is opened, the switch valve is located in the cavity and does not block the flow of gas.

[0019] In the test groove, a baffle constituting a return air flow channel is further arranged, the baffle separates the inside of the test groove, the lower end of the baffle and the bottom surface of the inside of the test groove reserve a gas flow space for heat exchange, the upper end of the baffle is connected with the top surface of the inside of the test groove, and the upper end of the baffle reserves a first air hole for gas flow; one of the regions in the test groove divided by the baffle is a heat exchange area, and the first heat exchange mechanism is located in the heat exchange area, so that the orderly flow direction makes the heating or cooling of the gas more uniform.

[0020] The above-mentioned first heat exchange mechanism comprises a test heater and a test evaporation sheet, according to the needs of customers, the test heater is used for heating, and the test evaporation sheet is selected for cooling; of course, the test evaporation sheet can also be selected for heating to improve the heating efficiency.

[0021] In the present embodiment, the energy storage evaporator and the test evaporation sheet are aluminum sheets, the aluminum sheets have the advantages of large specific heat capacity and fast heat dissipation, and can quickly release low temperature.

[0022] It should be noted that the existing PID automatic control system is also included, the PID automatic control system controls the opening angle of the switch valve, the PID automatic control system is prior art, and its principle and structure will not be described again.

[0023] In order to make the explanation of the present application more sufficient, the control of the rapid heating and cooling is further described in the form of examples, and this description is not a further limitation of the present application, and reference is made to Table 1 (test curve sample of rapid heating and cooling) as follows:

[0024] Table 1

[0025] 1. The temperature is reduced from 100℃ to -50℃ in 15 minutes, and the temperature reduction rate is 10℃ / min;

[0026] 2. A is a high-temperature test section, the test groove operates at a high temperature of 100℃, and the test evaporation sheet does not work; the refrigeration system is turned on, the energy storage evaporator works, low-temperature energy storage is started, and the set value of the low-temperature energy storage is -70℃ (the set value of the low-temperature energy storage is lower than the low-temperature set value of the program, which is used to enhance the work capacity of the compressor and improve the cooling efficiency);

[0027] 3. B is the fast cooling front section, the refrigeration system switches to the test evaporation piece work, the test tank temperature is rapidly cooled;

[0028] 4. When the temperature reaches C point, the controller controls the opening degree of the switch valve, the low-temperature cold energy of the energy storage tank enters the test tank, and the refrigerating capacity is increased to meet the requirement of the cooling rate of the rear section of the test tank. The opening degree of the switch valve is automatically controlled by PID to adjust the release of the cold energy of the energy storage tank;

[0029] 5. D is the low-temperature constant temperature section, the refrigeration system can meet the requirement of low-temperature constant temperature, at this time, the valve of the energy storage tank is closed, and there is no need to release the cold energy to the test tank. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the use state schematic diagram of the fast cooling front section of the application.

[0031] Figure 2 is the use state schematic diagram of the fast cooling rear section of the application.

[0032] Figure 3 is the perspective view of the application.

[0033] Figure 4 is the sectional view of Figure 3 . DETAILED DESCRIPTION

[0034] As shown in Figures 1-4 , a test method, characterized in that it comprises the following steps:

[0035] S1, when the test tank 1 is constant temperature, the internal temperature of the test tank 1 is obtained, according to the set environment temperature, the compressor and the energy storage evaporator 31 in the energy storage tank 3 form a closed loop, and the energy storage evaporator 31 in the energy storage tank 3 is heat exchanged through independent circulation;

[0036] S2, after the device is removed from the constant temperature preservation link, the compressor is switched by the switching valve, and the test evaporation piece 11 in the test tank 1 forms a closed loop, and the test evaporation piece 11 in the test tank 1 is heat exchanged through independent circulation;

[0037] S3, according to the power of the compressor, the maximum temperature instantaneous rate extreme point of the test tank 1 inside per unit time is obtained, and when the maximum temperature instantaneous rate extreme point is reached, the switch valve 2 between the energy storage tank 3 and the test tank 1 is opened, so that the first fluid in the energy storage tank 3 and the second fluid in the test tank 1 are superimposed, and the environment temperature in the test tank 1 reaches the calibration value.

[0038] The method mainly highlights an energy storage step, through pre-energy storage, the energy conversion efficiency of the low-power compressor in unit time is compensated by the on compensation mechanism in the later stage, and the two air flows are superposed, and as a result, the calibrated environmental temperature can be reached in the calibrated time, therefore, the method using the low-power compressor can still meet the required conditions of the test environment, the overall use cost and power demand are greatly reduced, and the energy saving and emission reduction effect is achieved.

[0039] As in the refrigeration process (the blue arrow in the figure is the flow loop of the cold flow), the working temperature in the test tank 1 is 100 DEG, and the heat exchange in the energy storage tank 3 has been completed at-60 DEG. In order to achieve rapid cooling, the compressor cools in the test tank 1 through the switching valve, at this time, the performance of the compressor is transferred to the refrigeration link of the test tank 1, assuming that the cooling efficiency of the test evaporation piece 11 obviously decreases after-20 DEG (the maximum instantaneous cooling rate extreme point), at this time, the switching valve 2 is opened to release the stored cold flow, in this way, the same compressor not only achieves a precooling effect, but also realizes a refrigeration effect, and the stored cold flow and the refrigeration cold flow are superposed.

[0040] The application can also be used for temperature rise, and the principle of temperature rise is the same as that of temperature drop, and the specific principle is referred to the above-mentioned temperature drop process.

[0041] In the energy storage link, the first circulating air drum 4 stirs the air flow in the energy storage tank 3, so that the temperature of the internal air flow is more uniform.

[0042] In the test tank 1, the second circulating air drum 5 stirs the air flow in the test tank 1, so that the temperature of the internal air flow is more uniform.

[0043] An energy storage type temperature rise and drop test equipment comprises a test tank 1 and a compressor, the test tank 1 has a return air flow channel (such as the red arrow in the figure), and a first heat exchange mechanism for energy transmission in the return air flow channel, the compressor provides high-pressure and high-temperature gaseous phase change material to the first heat exchange mechanism, and the equipment is characterized in that the equipment further comprises an energy storage tank 3 and a switching valve, the energy storage tank 3 comprises a second heat exchange mechanism, and the compressor is in communication with the first heat exchange mechanism and the second heat exchange mechanism through the switching valve.

[0044] The application has the following beneficial effects:

[0045] The temperature rise and drop test equipment uses the switching valve and the second heat exchange mechanism in the energy storage tank 3, so that the compressor simultaneously uses precooling and refrigeration, and the problem that the compressor needs high power can be overcome, and the energy loss is fully optimized.

[0046] The application comprises a shell 6, the test groove 1 and the energy storage groove 3 are arranged in the shell 6, and a cavity 61 between the test groove 1 and the energy storage groove 3 is reserved in the shell 6, the switch valve 2 is arranged in the cavity 61, and the switch valve 2 is used for opening or closing the heat exchange between the test groove 1 and the energy storage groove 3, preferably, the switch valve 2 is arranged on the side of the cavity 61 facing the energy storage groove 3, and a plurality of second air holes are arranged on the side of the cavity 61 facing the test groove 1, when the valve is opened, the switch valve 2 is located in the cavity 61 and cannot block the flow of gas.

[0047] In the test groove 1, the baffle 100 constituting the return air flow channel is further arranged, the baffle 100 separates the inside of the test groove 1, the lower end of the baffle 100 and the bottom surface of the inside of the test groove 1 reserve a gas flow space for heat exchange, the upper end of the baffle 100 is connected with the top surface of the inside of the test groove 1, and the upper end of the baffle 100 reserves a first air hole 100b for gas flow; one of the regions of the test groove 1 divided by the baffle 100 is a heat exchange area 100a, and the first heat exchange mechanism is located in the heat exchange area 100a, so that the ordered flow direction makes the heating or cooling of the gas more uniform.

[0048] The above-mentioned first heat exchange mechanism comprises a test heater 71 and a test evaporation sheet 11, according to the needs of the customer, the test heater 71 is used for heating, and the test evaporation sheet 11 is selected for cooling; of course, the test evaporation sheet 11 can also be selected for heating in the heating link to improve the heating efficiency.

[0049] In the embodiment, the energy storage evaporator 31 and the test evaporation sheet 11 are aluminum sheets, the aluminum sheets have the advantages of large specific heat capacity and fast heat dissipation, and can quickly release low temperature.

[0050] It should be noted that the existing PID automatic control system is also included, the PID automatic control system controls the opening and closing angle of the switch valve 2, the PID automatic control system is prior art, and the principle and structure will not be described again.

[0051] The low-temperature heater 8 is further arranged in the energy storage groove 3, for some users who have special requirements on the test environment temperature, the low-temperature heater 8 can be used for heating in the energy storage groove 3, so that the inside of the energy storage groove 3 can obtain a specific low temperature.

[0052] The above-mentioned embodiments only describe the preferred embodiments of the application, and do not limit the scope of the application, and various deformations and improvements on the technical solutions of the application made by the ordinary engineering technical personnel in the art without departing from the design spirit of the application should fall within the protection scope determined by the claims of the application.

Claims

1. A test method characterized by, Comprise the following steps: S1, when the test tank is constant temperature, the internal temperature of the test tank is obtained, according to the set environment temperature, the compressor and the energy storage evaporator in the energy storage tank form a closed loop, and the energy storage evaporator in the energy storage tank is exchanged by independent circulation; S2, after the device is removed from the constant temperature preservation link, the compressor is switched by the switching valve, and the test evaporator in the test tank forms a closed loop, and the test evaporator in the test tank is exchanged by independent circulation; S3, according to the power of the compressor, the maximum temperature instantaneous rate extreme point of the test tank in unit time is obtained, and when the maximum temperature instantaneous rate extreme point is reached, the switch valve between the energy storage tank and the test tank is opened, so that the first fluid in the energy storage tank and the second fluid in the test tank are superposed, and the environment temperature in the test tank reaches the calibration value.

2. A test method according to claim 1, characterized in that In the energy storage link, the first circulating air drum stirs the airflow in the energy storage tank, so that the temperature of the internal airflow is more uniform.

3. The test method of claim 1, wherein, In the test tank, the second circulating air drum stirs the airflow in the test tank, so that the temperature of the internal airflow is more uniform.

4. A temperature swing adsorption test apparatus using the test method according to any one of claims 1 to 3, comprising a test tank and a compressor, the test tank having a return flow path in the inside thereof, and a first heat exchange mechanism for performing energy transfer in the return flow path, and the compressor supplying the first heat exchange mechanism with a high-pressure high-temperature gaseous phase change material, characterized in that, It also comprises an energy storage tank and a switching valve, the inside of the energy storage tank comprises a second exchange mechanism, and the compressor is connected with the first heat exchange mechanism and the second heat exchange mechanism through the switching valve.

5. The chargeable temperature rising test apparatus according to claim 4, wherein It comprises a shell, the test tank and the energy storage tank are arranged in the shell, and a cavity between the test tank and the energy storage tank is reserved in the shell. The cavity is provided with a switch valve for conducting or cutting off the heat exchange between the test tank and the energy storage tank.

6. The chargeable temperature rising test apparatus according to claim 5, wherein The side of the cavity facing the test tank is provided with a plurality of second air holes, and the switch valve is arranged on the side of the cavity facing the energy storage tank. When the valve is opened, the switch valve is located in the cavity.

7. The charge type temperature increasing / decreasing test apparatus according to claim 4, wherein In the test tank, a baffle constituting a return air flow channel is also arranged, the baffle separates the inside of the test tank, the lower end of the baffle and the bottom surface of the inside of the test tank are reserved with a gas flow space for heat exchange, the upper end of the baffle is connected with the top surface of the inside of the test tank, and the upper end of the baffle is reserved with a first air hole for gas flow.

8. The charge type temperature increasing / decreasing test apparatus according to claim 4, wherein The first heat exchange mechanism comprises a test heater and a test evaporator.

9. The chargeable temperature elevation and reduction test apparatus according to claim 8, wherein The energy storage evaporator and the test evaporator are aluminum sheets.

10. The chargeable temperature elevation and reduction test apparatus according to claim 4, wherein A low temperature heater is also arranged in the energy storage tank.

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