CN111780442A

CN111780442A - Refrigerating system of test experiment table of freezing and refrigerating unit

Info

Publication number: CN111780442A
Application number: CN202010560252.5A
Authority: CN
Inventors: 王骏峰
Original assignee: Guangdong Kursheng Technology Co ltd
Current assignee: Guangdong Kursheng Technology Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-10-16

Abstract

The invention discloses a refrigerating system of a test experiment table of a freezing and refrigerating unit, which consists of a compression condensing unit, a performance test module and an air cooler, wherein the compression condensing unit consists of 5 elements 1, 2, 3, 4 and 5, the element 1 is arranged at the indoor side so as to be convenient for function debugging and testing during research and development, the element 5 is arranged in a heat preservation storage body and used for testing the refrigerating capacity and the low-temperature refrigerating performance of the unit, and the elements 2, 3 and 4 are used as working condition units or used for testing the unit for long-term reliability, wherein the elements 3 and 4 cannot be started at the same time and only one unit can be started. The invention fully utilizes the test resources, integrates the functions of other test tables on the basis of the original performance test table, fully utilizes the requirements of various test items, realizes the purpose of spending a lot of money as various things, and saves considerable research and development funds on the research and development investment of the compression and condensation unit.

Description

Refrigerating system of test experiment table of freezing and refrigerating unit

Technical Field

The invention belongs to the technical field of refrigeration equipment, and particularly relates to a refrigeration system of a test experiment table of a refrigeration unit.

Background

The refrigerating, freezing, compressing and condensing unit is generally used for refrigerating in low-temperature environments required by a refrigeration house, a freezer, a refrigerator car and the like to ensure the freshness and refrigeration of foods, medicines, medicinal materials and the like, the temperature in the refrigeration house or the freezer is generally between-30 ℃ and +10 ℃, and the refrigerating capacity, the function, the reliability and the like of the refrigerating, refrigerating and compressing and condensing unit are generally required to be tested when the refrigerating, freezing, compressing and condensing unit is researched and developed, so that various working condition testing experiment tables such as a performance testing experiment room, a reliability testing room and the like are required to be configured.

At present, the development of a freezing, refrigerating, compressing and condensing unit needs test items such as performance, function and reliability, the test items need professional experiment tables, the cost of a single experiment table is high, and the experiment tables cost is high if all the test items are matched. The most main part of the experiment table is a refrigerating system of a compression condensing unit for maintaining working conditions. In conclusion, I have designed a refrigerating system of a test bench of a refrigerating and freezing unit.

Disclosure of Invention

In order to solve the existing problems, the invention provides a refrigerating system of a test experiment table of a freezing and refrigerating unit.

The invention is realized by the following technical scheme:

the utility model provides a refrigerating system of freezing and refrigerating unit test experiment platform, comprises compression condensing unit, capability test module, air-cooler, compression condensing unit is through 5 component 1, component 2, component 3, component 4, component 5 are constituteed, wherein put indoor side for component 1, function debugging and test when making things convenient for research and development, component 5 is put at the heat preservation internal, be used for testing unit refrigerating capacity and low temperature refrigeration performance, component 2, component 3, component 4 use as the operating mode unit, perhaps long-term reliability test unit, wherein component 3, component 4 can not make simultaneously and open, only can open one of them unit.

As a further optimization scheme of the invention, the performance testing module mainly comprises a sleeve heat exchanger or a plate heat exchanger, a water tank, a water pump, a valve, a temperature measuring element and the like, and is mainly used for testing the refrigerating capacity of the unit after being connected with the element 5.

As a further optimization scheme of the invention, the air cooler and the compression condensing unit are matched by 5 elements to maintain the temperature in the laboratory of the experiment table or perform long-term reliable operation; the other parts are a thermal expansion valve, an electromagnetic valve and an electronic expansion valve, and the other marked elements are stop valves.

As a further optimization scheme of the invention, the compression condensing unit, the performance testing module and the air cooler are all connected with a refrigerant air pipe and a refrigerant liquid pipe; the compression condensing unit, the performance testing module and the air cooler are connected with a plurality of stop valves, electromagnetic valves, thermal expansion valves and electronic expansion valves.

Compared with the prior art, the invention has the beneficial effects that: the invention fully utilizes the test resources, integrates the functions of other test tables on the basis of the original performance test table, fully utilizes the requirements of various test items, realizes the purpose of changing one money to do various things, and saves considerable research and development funds on the research and development investment of the compression and condensation unit.

Drawings

FIG. 1 is a schematic view of the structural connection of the present invention.

In the figure: 1. an element 1; 2. an element 2; 3. an element 3; 4. the element 4; 5. an element 5; 6. a performance testing module; 7. an air cooler; 8. an air cooler; 9. a thermostatic expansion valve; 10. a thermostatic expansion valve; 11. an electromagnetic valve; 12. an electromagnetic valve; 13. an electronic expansion valve; 14. an electronic expansion valve; 15-36 and a stop valve.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, a refrigeration system of a test bench of a refrigerating and freezing unit comprises a compression and condensation unit, a performance test module (6) and air coolers (7) and (8), wherein the compression and condensation unit comprises 5 elements 1(1), 2(2), 3(3), 4(4) and 5(5), wherein the element 1(1) is placed at the indoor side to facilitate function debugging and testing during research and development, the element 5(5) is placed in a heat preservation storage body and used for testing the refrigerating capacity and low-temperature refrigerating performance of the unit, and the elements 2(2), 3(3) and 4(4) are used as working condition units or long-term reliability test units, wherein the elements 3(3) and 4(4) cannot be simultaneously turned on and only one of the units can be turned on; the performance testing module (6) mainly comprises a sleeve heat exchanger or a plate heat exchanger, a water tank, a water pump, a valve, a temperature measuring element and the like, and is mainly used for testing the refrigerating capacity of the unit after being connected with the element 5 (5); the air coolers (7) and (8) are matched with the compression condensing unit through 5 elements to maintain the temperature in the laboratory of the experiment table or perform long-term reliable operation; the other parts are thermal expansion valves (9) and (10), electromagnetic valves (11) and (12) and electronic expansion valves (13) and (14), and the other marked elements are stop valves; the compression condensing unit, the performance testing module (6) and the air coolers (7) and (8) are all connected with a refrigerant air pipe and a refrigerant liquid pipe; the compression condensing unit, the performance testing module (6) and the air coolers (7) and (8) are connected with a plurality of stop valves (15), (16), (17) (18), (19), (20), (21), (22), (23), (24), (25), (26), (27), (28), (29), (30), (31), (32), (33), (34), (35) and (36), electromagnetic valves (11) and (12), thermostatic expansion valves (9) and (10) and electronic expansion valves (13) and (14).

In this embodiment, the test platform of the present invention has the following functional specifications and operations: the refrigerating capacity test function of the compression condensing unit; the stop valves (17), (18), (19), (20) are opened, the stop valves (15), (16), (23), (24), (27), (28), (29), (33) are opened, but only one of the two groups of the stop valves (31), (35) and (32), (36) is opened, and the other valves are closed. If the stop valves (31) and (35) are opened, the

units

2, 2 and 3 are used for the working condition units, and if the valves (32) and (36) are opened, the

units

2, 2 and 4, 4 are used, wherein the

units

2, 2 can be used for testing the long-term reliability units. And starting the unit No. 5(5) and the unit No. 6(6), wherein the test of the refrigerating capacity of the unit can be carried out.

Function debugging and testing are carried out during research and development of the compression condensing unit; the shut-off valves (30) and (34) are opened, the valves (27) and (28) are opened, and the other valves are closed. Starting the unit 1(1) and the unit 8(8), the function debugging and the function testing of the unit can be carried out.

Debugging and testing one-to-two functions during research and development of the compression condensing unit; the shut-off valves (30, 34) are opened, the shut-off valves (15, 16, 23, 24, 27, 28) are opened, and the other valves are closed. The starting element 1(1) set, the element 7(7), the element 8(8) can carry out one-to-two function debugging and function testing of the set.

Debugging and testing the low-temperature refrigeration function when the compression condensing unit is researched and developed; the stop valves (15), (16), (19), (20), (21), (22), (27), (28), (29) and (33) are opened,

the other valves are closed. And (3) starting the element 2(2) machine set and the element 8(8) to reduce the temperature in the experiment table to about-20 ℃, and then starting the element 5(5) and the element 8(8) to test the refrigeration condition of the machine set at low temperature and evaluate the refrigeration reliability of the machine set in the low-temperature environment.

Carrying out long-term reliability test during research and development of the compression condensing unit; the shut-off valves (27), (28), (29) and (33) are opened, and the other valves are closed. Starting the unit No. 2(2) and the unit No. 8(8), and operating for a long time to evaluate the reliability of the unit. When the unit needs to carry out the capability test, it can act as operating mode unit, kills two birds with one stone, and power saving is saved trouble again.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a refrigerating system of freezing and refrigerating unit test experiment platform, comprises compression condensing unit, capability test module, air-cooler, its characterized in that: the compression condensing unit is composed of 5 elements 1, 2, 3, 4 and 5, wherein the element 1 is arranged at the indoor side to facilitate function debugging and testing during research and development, the element 5 is arranged in the heat preservation storage body and used for testing the refrigerating capacity and low-temperature refrigerating performance of the unit, the elements 2, 3 and 4 are used as working condition units, or the unit is tested for long-term reliability, wherein the elements 3 and 4 cannot be started at the same time, and only one unit can be started.

2. The refrigeration system of a test bench of a refrigerating and freezing unit as claimed in claim 1, wherein: the performance testing module mainly comprises a sleeve heat exchanger or a plate heat exchanger, a water tank, a water pump, a valve, a temperature measuring element and the like, and is mainly used for testing the refrigerating capacity of the unit after being connected with the element 5.

3. The refrigeration system of a test bench of a refrigerating and freezing unit as claimed in claim 1, wherein: the air cooler and the compression condensing unit are matched by 5 elements to maintain the temperature in the laboratory of the experiment table or perform long-term reliable operation; the other parts are a thermal expansion valve, an electromagnetic valve and an electronic expansion valve, and the other marked elements are stop valves.

4. The refrigeration system of a test bench of a refrigerating and freezing unit as claimed in claim 1, wherein: the compression condensing unit, the performance testing module and the air cooler are all connected with a refrigerant air pipe and a refrigerant liquid pipe; the compression condensing unit, the performance testing module and the air cooler are connected with a plurality of stop valves, electromagnetic valves, thermal expansion valves and electronic expansion valves.