CN218672685U - Single-machine segregation self-overlapping high-low temperature testing machine - Google Patents
Single-machine segregation self-overlapping high-low temperature testing machine Download PDFInfo
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- CN218672685U CN218672685U CN202223072108.0U CN202223072108U CN218672685U CN 218672685 U CN218672685 U CN 218672685U CN 202223072108 U CN202223072108 U CN 202223072108U CN 218672685 U CN218672685 U CN 218672685U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a single-machine fractional condensation self-cascade high-low temperature testing machine, which comprises a compression refrigeration system and a waterway system, wherein the compression refrigeration system mainly comprises a compressor, an oil-gas separator, a condenser, a drying filter, a primary condensation evaporation device, a secondary condensation evaporation device and a condensation evaporator; the waterway system comprises a water tank, an internal circulating water pump, an external circulating water pump and a PID temperature controller. The single-machine segregation self-cascade high-low temperature testing machine provided by the utility model adopts the high, medium and low mixed working medium refrigerant, not only can be suitable for low-temperature environment, but also can work under normal temperature or high-temperature environment, and improves the performance of a high-low temperature testing system; the principle of single-compressor operation and multi-stage segregation is adopted, and the condensing evaporator adopts a plate heat exchanger, so that the manufacturing cost of the whole testing system is saved, and the ambient temperature of-40 to-120 ℃ can be prepared; the device can be used for low-temperature tolerance experiment detection of new energy batteries, hydrogen fuel cells, hydrogen system valves, raw materials and the like.
Description
Technical Field
The utility model relates to a refrigeration plant technical field, concretely relates to unit dephlegmation is from high low temperature test machine that folds.
Background
Under the background that new energy automobiles are vigorously pursued in China, all large enterprises need to know and research various performance indexes of the battery packs of the enterprises; therefore, a new energy battery pack high-low temperature test system is provided in the prior art, and the new energy battery pack high-low temperature test system is used for simulating various groups of environments encountered by the battery pack in use so as to know the performance of the battery pack under different environments, so that the existing battery pack can be improved in a targeted manner to meet actual needs.
The high and low temperature test system for the battery pack generally adopts an industrial single-machine self-overlapping refrigerator, and a standard refrigerator is formed by connecting a compressor, a condenser, an evaporator, a drying filter and an expansion throttle valve in series, a proper amount of refrigerant is filled in the refrigerator, and the compressor is controlled by an electric appliance (including a controller) according to the requirement of the environment to operate so as to achieve the purposes of refrigeration and heat transfer.
However, in the prior art, the high and low temperature testing machine for the new energy battery pack adopts a plurality of compressors to work in order to achieve the purpose of low temperature, so that the manufacturing cost of the whole testing system is increased. In addition, the battery pack high-low temperature test system in the prior art needs to provide both a low-temperature environment and a high-temperature test environment, and the refrigerant added in the existing test machine mostly adopts a medium with a single component, is generally only suitable for the low-temperature environment, cannot work in the normal-temperature or high-temperature environment, cannot play a very good role in the heating process, has a poor heating effect, and seriously affects the performance of the high-low temperature test system.
Disclosure of Invention
For overcoming prior art's defect, the utility model aims to provide a unit divides and congeals from high low temperature test machine that folds to solve with high costs, heat the performance scheduling problem that the effect is poor, influence high low temperature test system.
Therefore, the utility model provides a single-machine segregation self-cascade high and low temperature testing machine, which comprises a compression refrigeration system and a waterway system, wherein the compression refrigeration system mainly comprises a compressor, an oil-gas separator, a condenser and a drying filter which are connected in sequence, and further comprises a first-stage condensation evaporation device, a second-stage condensation evaporation device and a condensation evaporator; the other end of the drying filter is connected with the primary condensation evaporation device, and the rear end of the primary condensation evaporation device is connected with the secondary condensation evaporation device; the primary condensation evaporation device comprises a first separator, a first throttle valve and a first plate heat exchanger which are sequentially connected; one loop in the first separator is communicated with an air suction port of the compressor through the first throttling valve and the first plate heat exchanger in sequence, and the other loop in the first separator is communicated with the second-stage condensation evaporation device through the first plate heat exchanger.
The second-stage condensation evaporation device comprises a second separator, a second throttling valve, a second plate heat exchanger and a third throttling valve which are sequentially connected; the inlet end of the second separator is communicated with the first plate heat exchanger, one loop of the second separator is communicated with a suction port of a compressor through the second throttling valve and the second plate heat exchanger in sequence, and the other loop of the second separator is communicated with the suction port of the compressor through the second plate heat exchanger, the third throttling valve and the condensing evaporator in sequence; the waterway system comprises a water tank, an internal circulating water pump and an external circulating water pump; the other loop of the condensation evaporator returns to the condensation evaporator through the internal circulating water pump and the water tank in sequence; and the water tank forms a loop with the load through the external circulating water pump.
Furthermore, a liquid outlet of the oil-gas separator is connected with a gas inlet of the compressor through a pipeline, a gas inlet of the oil-gas separator is connected with a gas outlet of the compressor through a pipeline, a gas outlet of the oil-gas separator is connected with a gas inlet of the condenser through a pipeline, and the outer end of the gas outlet of the condenser is connected with the drying filter.
Furthermore, an air inlet end of the first separator is connected with the drying filter, the other end of the first separator is communicated with the first plate heat exchanger, and the first throttling valve is arranged between the first separator and the first plate heat exchanger.
Further, the condenser and the oil-gas separator are filled with high, medium and low mixed working medium refrigerants.
Furthermore, a PID temperature controller is arranged on the water tank.
The single-machine segregation self-cascade high-low temperature testing machine provided by the utility model adopts the high, medium and low mixed working medium refrigerant, not only can be suitable for low-temperature environment, but also can work under normal temperature or high-temperature environment, and improves the performance of a high-low temperature testing system; the principle of single-compressor operation and multi-stage segregation is adopted, and the condensing evaporator adopts a plate heat exchanger, so that the manufacturing cost of the whole testing system is saved, and the ambient temperature of-40 to-120 ℃ can be prepared; the device can be used for low-temperature tolerance experiment detection of new energy batteries, hydrogen fuel cells, hydrogen system valves, raw materials and the like.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a single-machine segregation self-cascade high and low temperature testing machine of the present invention;
description of the reference numerals
1. A compressor; 2. an oil-gas separator; 3. a condenser; 4. drying the filter; 5. a first separator; 6. a first throttle valve; 7. a first plate heat exchanger; 8. a second separator; 9. a second throttling valve; 10. a plate heat exchanger II; 11. a throttle valve III; 12. a condensing evaporator; 13. an internal circulation water pump; 14. a water tank; 15. an external water circulation pump; 16. and (4) loading.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, the single-machine segregation self-cascade high and low temperature testing machine of the present invention comprises a compression refrigeration system and a waterway system, wherein the compression refrigeration system mainly comprises a compressor 1, an oil-gas separator 2, a condenser 3, a drying filter 4, a primary condensation evaporation device, a secondary condensation evaporation device and a condensation evaporator 12; the waterway system comprises a water tank 14, an internal circulating water pump 13, an external circulating water pump 15 and a PID temperature controller.
Specifically, a liquid outlet of the oil-gas separator 2 is connected with a gas inlet of the compressor 1 through a pipeline, the gas inlet of the oil-gas separator 2 is connected with a gas outlet of the compressor 1 through a pipeline, the gas outlet of the oil-gas separator 2 is connected with a gas inlet of the condenser 3 through a pipeline, the outer end of the gas outlet of the condenser 3 is connected with the drying filter 4, the other end of the drying filter is connected with the primary condensation evaporation device, and the rear end of the primary condensation evaporation device is connected with the secondary condensation system.
The primary condensation and evaporation device comprises a separator I5, a throttle valve I6 and a plate heat exchanger I7 which are connected in sequence; one end of a separator I5 is connected with the drying filter 4, the other end of the separator I5 is communicated with a plate heat exchanger I7, a throttle valve I6 is arranged between the separator I5 and the plate heat exchanger I7, one loop in the separator I5 is communicated with an air suction port of the compressor 1 through the throttle valve I6 and the plate heat exchanger I7 in sequence, and the other loop in the separator I5 is communicated with a secondary condensation evaporation device through the plate heat exchanger I7.
The second-stage condensation evaporation device comprises a second separator 8, a second throttling valve 9, a second plate type heat exchanger 10 and a third throttling valve 11 which are connected in sequence; the inlet end of the second separator 8 is communicated with the first plate heat exchanger 7, one loop in the second separator 8 is communicated with the air suction port of the compressor 1 through a second throttling valve 9 and a second plate heat exchanger 10 in sequence, and the other loop in the second separator 8 is communicated with the air suction port of the compressor 1 through a second plate heat exchanger 10, a third throttling valve 11 and a condensation evaporator 12 in sequence to form a condensation system with a two-stage condensation evaporation device.
The other loop of the condensation evaporator 12 passes through the internal circulation water pump 13 and the water tank 14 in sequence and finally flows back to the condensation evaporator 12 through a pipeline, so that the heat exchange between the condensation evaporator 12 and the water tank 14 is realized; the water tank 14 is also connected with an external circulation loop, is connected with a load 16 through an external circulation water pump 15 and finally flows back into the water tank through a pipeline; wherein, the water tank 14 is provided with a PID temperature controller, the PID temperature controller can adjust the preparation temperature between-40 ℃ and-120 ℃ according to the actual situation, and specifically, three temperatures can be set, namely-40, 80 and 120, so as to meet different test requirements.
In the scheme, the medium used in the condenser 3 and the oil-gas separator 2 is mixed refrigerant, high, medium and low mixed working medium refrigerant is adopted, and the condensing stage number can be controlled according to different experimental requirements to prepare different temperatures from-40 to-120.
The working principle and working process of the high and low temperature testing machine of the utility model are briefly described below with the attached drawings.
The compressor 1 operates, high-temperature and high-pressure gas enters the condenser 3 through the oil-gas separator 2 to be condensed, the condensed gas-liquid mixed refrigerant enters the separator I5 through the drying filter 4, the separated high-temperature liquid refrigerant enters the primary condensation evaporator plate through the throttle valve I6 to be converted, the condensed cold energy is provided for the medium-low temperature mixed gas separated by the separator I5, the condensed medium-low temperature mixed gas returns to the air suction port of the compressor 1, the mixed medium-low temperature refrigerant after primary condensation enters the separator II 8, the separated medium-temperature refrigerant enters the secondary condensation evaporator to provide the condensed cold energy for the low-temperature refrigerant, the condensed cold energy returns to the air suction port of the compressor 1, the low-temperature refrigerant enters the condensation evaporator 12 through the throttle valve III 11 to be evaporated to refrigerate the secondary refrigerant, the secondary refrigerant flows into the water tank 14 through the internal circulation water pump 13, the required temperature is adjusted through PID (proportion integration differentiation), and then is transmitted to the load 16 through the external circulation water pump 15 to finish the test.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A single-machine segregation self-cascade high-low temperature testing machine is characterized by comprising a compression refrigeration system and a waterway system, wherein the compression refrigeration system mainly comprises a compressor (1), an oil-gas separator (2), a condenser (3) and a drying filter (4) which are sequentially connected, and further comprises a primary condensation evaporation device, a secondary condensation evaporation device and a condensation evaporator (12); the other end of the drying filter (4) is connected with the primary condensation and evaporation device, and the rear end of the primary condensation and evaporation device is connected with the secondary condensation and evaporation device;
the primary condensation evaporation device comprises a first separator (5), a first throttle valve (6) and a first plate heat exchanger (7) which are sequentially connected; one loop in the first separator (5) is communicated with a suction port of the compressor (1) through the first throttling valve (6) and the first plate heat exchanger (7) in sequence, and the other loop in the first separator (5) is communicated with the second-stage condensation evaporation device through the first plate heat exchanger (7);
the secondary condensation evaporation device comprises a second separator (8), a second throttling valve (9), a second plate heat exchanger (10) and a third throttling valve (11) which are sequentially connected; the inlet end of the second separator (8) is communicated with the first plate heat exchanger (7), one loop in the second separator (8) is communicated with a suction port of the compressor (1) through the second throttling valve (9) and the second plate heat exchanger (10) in sequence, and the other loop in the second separator (8) is communicated with the suction port of the compressor (1) through the second plate heat exchanger (10), the third throttling valve (11) and the condensing evaporator (12) in sequence;
the waterway system comprises a water tank (14), an internal circulating water pump (13) and an external circulating water pump (15); the other loop of the condensation evaporator (12) returns to the condensation evaporator (12) through an internal circulating water pump (13) and a water tank (14) in sequence; and the water tank (14) forms a loop with a load (16) through the external circulating water pump (15).
2. The single-machine segregation self-cascade high-low temperature testing machine as claimed in claim 1, wherein a liquid outlet of the oil-gas separator (2) is connected with a gas inlet of the compressor (1) through a pipeline, a gas inlet of the oil-gas separator (2) is connected with a gas outlet of the compressor (1) through a pipeline, a gas outlet of the oil-gas separator (2) is connected with a gas inlet of the condenser (3) through a pipeline, and an outer end of a gas outlet of the condenser (3) is connected with the drying filter (4).
3. The single-machine segregation self-cascade high and low temperature testing machine as claimed in claim 2, wherein the inlet end of the first separator (5) is connected with the dry filter (4), the other end of the first separator (5) is communicated with the first plate heat exchanger (7), and the first throttling valve (6) is arranged between the first separator (5) and the first plate heat exchanger (7).
4. The single-machine segregation self-cascade high-low temperature testing machine as claimed in claim 3, wherein the condenser (3) and the oil-gas separator (2) are filled with high, medium and low mixed working medium refrigerants.
5. The single-machine segregation self-cascade high-low temperature testing machine as claimed in claim 1, wherein a PID temperature controller is arranged on the water tank (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223072108.0U CN218672685U (en) | 2022-11-18 | 2022-11-18 | Single-machine segregation self-overlapping high-low temperature testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223072108.0U CN218672685U (en) | 2022-11-18 | 2022-11-18 | Single-machine segregation self-overlapping high-low temperature testing machine |
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| Publication Number | Publication Date |
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| CN218672685U true CN218672685U (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223072108.0U Active CN218672685U (en) | 2022-11-18 | 2022-11-18 | Single-machine segregation self-overlapping high-low temperature testing machine |
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| CN (1) | CN218672685U (en) |
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- 2022-11-18 CN CN202223072108.0U patent/CN218672685U/en active Active
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