CN212379042U - Comprehensive test equipment for performance of air cooler or refrigerator - Google Patents
Comprehensive test equipment for performance of air cooler or refrigerator Download PDFInfo
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- CN212379042U CN212379042U CN202020906171.1U CN202020906171U CN212379042U CN 212379042 U CN212379042 U CN 212379042U CN 202020906171 U CN202020906171 U CN 202020906171U CN 212379042 U CN212379042 U CN 212379042U
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Abstract
The utility model discloses a comprehensive test device for the performance of an air cooler or a refrigerator, which comprises a workbench and a temperature measuring box, wherein the temperature measuring box is detachably fixed on the workbench and is provided with an air inlet and an air outlet, and the inside of the temperature measuring box is provided with a heat load capable of adjusting power; the temperature control box is arranged on the workbench, and forms a cavity with an adjustable ventilation opening together with the workbench and the temperature measuring box, and a tested piece correspondingly connected with the air inlet and the air outlet of the temperature measuring box is placed in the cavity; the refrigerant control box is used for connecting a refrigerant inlet and a refrigerant outlet of the tested piece; the control cabinet is used for providing a working power supply and connecting a tested piece for measuring voltage, current and power; and the temperature sensor is arranged in the control cabinet, and the probe extends into the temperature measuring box and the temperature control box respectively. The utility model discloses a commonality is strong, can reduce refrigeration plant's such as air-cooler maintenance test cost.
Description
Technical Field
The utility model relates to an air-cooler or refrigerator performance's integrated test equipment.
Background
Refrigeration parts such as an air cooler of an airplane, a refrigerator, a wine cooler and the like are tested and maintained one to one by adopting special test and maintenance equipment. For the aircraft maintenance industry, various refrigeration components equipped by manufacturers are equipped on the aircraft, and if all the special test maintenance equipment is adopted, the special equipment not only needs to be purchased with higher cost and occupies larger space of a maintenance plant, but also the utilization rate of the special equipment is possibly low, the special equipment is in an idle state for a long time, the idle equipment also needs to be maintained, the investment cost of the equipment is increased, and more personnel and management cost also need to be invested.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem, just lie in through providing an air-cooler or refrigerator performance's integrated test equipment, integrated multiple test function improves the efficiency of software testing and the reduce cost of air-cooler or refrigerator.
The technical proposal adopted by the utility model is as follows,
the testing device of the utility model comprises a workbench,
the temperature measuring box is detachably fixed on the workbench and is provided with an air inlet and an air outlet, and a heat load with adjustable power is arranged in the temperature measuring box;
the temperature control box is arranged on the workbench, and forms a cavity with an adjustable ventilation opening together with the workbench and the temperature measuring box, and a tested piece correspondingly connected with the air inlet and the air outlet of the temperature measuring box is placed in the cavity;
the refrigerant control box is used for connecting a refrigerant inlet and a refrigerant outlet of the tested piece;
the control cabinet is used for providing a working power supply and connecting a tested piece for measuring voltage, current and power;
and the temperature sensor is arranged in the control cabinet, and the probe extends into the temperature measuring box and the temperature control box respectively.
The utility model discloses by the load situation of measurement incubator simulation air-cooler or refrigerator, by the operational environment of control incubator simulation air-cooler or refrigerator, the business turn over wind gap that will be tested the piece before the test corresponds with the air outlet and the air intake of measurement incubator respectively and fixes on the workstation, realize the circulation of business turn over wind, then through refrigerant control box, the control cabinet, realize the refrigerant filling of air-cooler or refrigerator on the workstation and retrieve, the evacuation, filling liquid nitrogen is retrieved and voltage, the test of comprehensive properties such as electric current and power. The temperature measuring box is designed to be detachable and replaceable, and the air cooler or the refrigerator with different types can be replaced by the corresponding temperature measuring box when being tested.
The following is the preferred design of the utility model:
the utility model discloses a temperature measuring box includes frame and box, and the inside and outside surface of box is equipped with the heat preservation, the inside adjustable baffle that still is equipped with of temperature measuring box, adjustable baffle will the temperature measuring box separates for inlet air channel and air-out passageway and adjusts the pressure differential between the two.
The utility model discloses a control the temperature box with the frame of volume incubator is articulated, and control the temperature box and still connect through pneumatic telescopic bracing piece on the frame of volume incubator, make control the temperature box can follow the articulated shaft upset and support fixedly. After the temperature control box is turned upwards, the tested piece can be fixed or detached, and in the testing process, the temperature control box is turned downwards to be attached to the workbench to form a closed cavity.
Set up a water conservancy diversion regulating plate in the adjustable vent of accuse temperature case, the water conservancy diversion regulating plate is connected with accommodate the lead screw and is used for adjusting the opening size of adjustable vent reaches the purpose of stabilizing the inside temperature of accuse temperature case.
The side of the temperature control box is provided with a transparent observation window, so that a tested piece can be observed conveniently.
The control cabinet is internally provided with an adjustable direct-current power supply, a multi-path temperature tester, a power tester, a differential pressure sensing and power regulator, and is used for monitoring the heat load power of the regulating temperature box, monitoring and regulating the temperature environment in the temperature control box, and testing the voltage, the current, the power and the like of a tested piece.
The utility model discloses retrieve the refrigerant filling, functions such as evacuation test, liquid nitrogen filling are retrieved focus on the refrigerant control box, it is more convenient to make each test environment's tube coupling, reduces the switching of pipeline connector.
The refrigerant control box is provided with a first interface connected with a high-pressure port of a tested piece, a second interface connected with a low-pressure port of the tested piece, a third interface connected with a refrigerant recovery bottle, a fourth interface connected with a vacuum pump, a fifth interface connected with a refrigerant filling bottle and a sixth interface connected with a liquid nitrogen bottle, the first interface is connected with a first pipeline, the first pipeline is connected with a third pipeline and a fourth pipeline which are connected in parallel and are respectively provided with a switch valve, the third pipeline is connected with the third interface, the fourth pipeline is connected with the fourth interface, the second interface is connected with the second pipeline, the second pipeline is connected with a fifth pipeline and a sixth pipeline which are connected in parallel and are respectively provided with a switch valve, the fifth pipeline is connected with the fifth interface, the sixth pipeline is connected with a sixth interface, the first pipeline is connected with a first pressure gauge, and the second pipeline is connected with a second pressure gauge and a micro-pressure gauge.
The first pipeline and the second pipeline are connected through a seventh pipeline provided with a switch valve, and the seventh pipeline can realize switching between a high-pressure port and a low-pressure port during a vacuum-pumping test.
And a drying filter and a recycling and filling integrated machine are arranged on a pipeline between the third interface and the refrigerant recycling bottle.
The utility model has the advantages of it is following:
1. the utility model discloses integrated various test function of air-cooler or refrigerator, both can be to voltage, electric current and power are tested, the filling recovery function of refrigerant has also been realized, and the temperature measuring box, the accuse incubator all is the modularized design, the temperature measuring box is removable to be traded and is fixed in on the workstation, can be according to the different replacement of being tested the piece for the temperature measuring box of matching, make the workstation can satisfy the capability test of various types of air-cooler or refrigerator, the cost of purchasing various complete sets of test equipment has been reduced, equipment occupation space has also been saved through the commonality that promotes the workstation.
2. The utility model discloses a control cabinet monitors the operational environment of regulating quantity incubator and accuse temperature case, both makes the temperature measuring case provide suitable heat load, makes the accuse temperature case again for being tested the piece and create suitable test environment, can accurately simulate the operational environment of air-cooler, refrigerator on the aircraft, improves the accuracy of test result.
3. The utility model discloses a refrigerant control box collects refrigerant recovery filling, evacuation, liquid nitrogen filling recovery function, and it is convenient to connect, and the interface of refrigerant control box easily discerns, avoids the interface connection mistake, can also reduce frequent interface switching among the maintenance test process, improves efficiency of software testing.
Drawings
The invention will be described in further detail with reference to the following drawings and specific embodiments:
FIG. 1 is a block diagram of an air cooler under test according to an embodiment;
FIG. 2 is a perspective view of the comprehensive testing device for the performance of an air cooler or a refrigerator of the present invention;
FIG. 3 is a schematic diagram of the testing apparatus for comprehensive testing of performance of an air cooler or a refrigerator according to the present invention;
fig. 4 is a perspective view of a temperature measuring box according to the present invention;
FIG. 5 is a structural diagram of the temperature control box of the present invention with one side panel removed;
FIG. 6 is a front view of the temperature controlled enclosure of FIG. 5;
FIG. 7 is a bottom view of the temperature control cabinet of FIG. 5;
FIG. 8 is a block diagram of an adjustable vent of the temperature controlled box;
FIG. 9 is a bottom view of the adjustable vent of FIG. 8;
fig. 10 is a front view of the refrigerant control box;
fig. 11 is a working schematic diagram of the refrigerant control box for refrigerant filling and recovery, vacuum pumping and liquid nitrogen filling and recovery.
Description of reference numerals:
1. a test piece; 1a, an air inlet of a tested piece; 1b, an air outlet of the tested piece; 2. a temperature control box 21 and a pneumatic telescopic supporting rod; 22. an adjustable vent; 23. a flow guide adjusting plate; 24. adjusting the screw rod; 25. a sensor holder; 3. a temperature measuring box; 31. an adjustable baffle; 32. a thermal load; 33. a flow-guiding orifice plate; 3a, an air inlet; 3b, an air outlet; 4. a refrigerant control box; A. a first interface; B. a second interface; C. a third interface; D. a fourth interface; E. a fifth interface; F. a sixth interface; 41. a first pipeline; 42. a third pipeline; 421. a third pipeline switching valve; 43. a fourth pipeline; 431. a fourth pipeline switching valve; 44. a second pipeline; 45. a fifth pipeline; 451. a fifth pipeline switching valve; 46. a sixth pipeline; 461. a sixth pipeline switching valve; 47. a seventh pipeline; 471. a seventh pipeline switching valve; 48. a micro-pressure meter; PG1, a first pressure gauge; PG2, a second pressure gauge; 5. fixing the tool; 6. a control cabinet; 61. controlling the test circuit; 62. a multi-channel temperature tester; 63. a power display; 64. a power regulator; 65. a differential pressure sensor; 7. a work table; 8a, drying and filtering; 8b, recovering and filling the integrated machine; 8c, a refrigerant recovery bottle; 8d, a vacuum pump; 8e, filling a liquid nitrogen filling bottle; 8f, filling a refrigerant filling bottle.
Detailed Description
As shown in fig. 1 to fig. 10, the air cooler is taken as an example of the tested piece in the embodiment to further illustrate the structure and the operation principle of the present invention. As shown in fig. 1, the device under test 1 has a device under test inlet 1a and a device under test outlet 1 b.
The test equipment of the utility model comprises a workbench 7, and
the temperature measuring box 3 is detachably fixed on the workbench 7 and is provided with an air inlet 3a and an air outlet 3b, and a heat load 32 with adjustable power is arranged in the temperature measuring box;
the temperature control box 2 is arranged on the workbench 7, and forms a cavity with an adjustable ventilation opening 22 with the workbench 7 and the temperature measuring box 3 in a surrounding manner, the cavity is used for placing a tested piece 1 correspondingly connected with an air inlet 3a and an air outlet 3b of the temperature measuring box 3, the tested piece 1 is fixed on the workbench 7 through a fixing tool 5, so that the air inlet 1a of the tested piece corresponds to the air outlet 3b of the temperature measuring box, and the air outlet 1b of the tested piece corresponds to the air inlet 3a of the temperature measuring box, and circulating air is formed;
the refrigerant control box 4 is used for connecting a refrigerant inlet and a refrigerant outlet of the tested piece and can perform operations such as refrigerant filling, refrigerant recovery, liquid nitrogen filling, vacuumizing and the like on the tested piece;
the control cabinet 6 is used for providing a working power supply and connecting a tested piece for measuring voltage, current and power;
and the temperature sensor is arranged inside the control cabinet 6, and the probe respectively extends into the temperature measuring box 3 and the temperature control box 2.
As a preferred embodiment:
the temperature measuring box 3 comprises a frame and a box body, the inner surface and the outer surface of the box body are provided with heat insulation layers, an adjustable partition plate 31 is further arranged inside the temperature measuring box 3, the adjustable partition plate 31 divides the temperature measuring box 3 into an air inlet channel and an air outlet channel and adjusts the pressure difference between the air inlet channel and the air outlet channel, and a flow guide pore plate 33 can be further arranged in the temperature measuring box 3.
The temperature control box 2 is hinged with the frame of the temperature measuring box 3, and the temperature control box 2 is also connected with the frame of the temperature measuring box 3 through a pneumatic telescopic support rod 21, so that the temperature control box can be overturned along a hinge shaft and is supported and fixed. After the temperature control box 2 is turned upwards, the tested piece 1 can be fixed or detached, in the testing process, the temperature control box 2 is turned downwards to be attached to the workbench 7 to form a closed cavity in a surrounding mode, in the testing process, the temperature control box 2 is used for covering the tested piece 1, and the working environment temperature of the tested piece 1 on an airplane is simulated in the temperature control box 2.
A flow guide adjusting plate 23 is arranged in an adjustable ventilation opening 22 of the temperature control box 2, the flow guide adjusting plate 23 is connected with an adjusting screw rod 24 and used for adjusting the opening size of the adjustable ventilation opening 22, the temperature control box 2 is further provided with a sensor support 25, a probe of a temperature sensor is fixed on the sensor support 25 to monitor the temperature in the temperature control box 2, the control cabinet 6 controls the adjusting screw rod 24 to adjust the opening size of the ventilation opening 22 according to the monitored temperature value, the air exhaust speed is controlled, and the purpose of stabilizing the temperature in the temperature control box 2 is achieved.
The side of the temperature control box 2 is provided with a transparent glass observation window which is convenient for observing the tested piece 1.
An adjustable direct current power supply is arranged in the control cabinet 6, a multi-path temperature tester 62, a power tester, a differential pressure sensing sensor 65 and a power regulator 64 are connected with the tested piece 1 through a control test circuit 61, as shown in fig. 3, the control test circuit 61 is provided with the adjustable direct current power supply, the power tester can test voltage, current and power parameters, two probes of the multi-path temperature tester 62 are arranged in the temperature measuring box 3 and are used for measuring temperature values of an air inlet channel and an air outlet channel of the temperature measuring box 3, the multi-path temperature tester 62 is also provided with one probe which is arranged in the temperature control box 2 and is used for measuring the temperature value in the temperature control box 2, and a heat load 32 of the temperature measuring box 3 is connected with a power display 63 and a power regulator 64 of the control cabinet 6 and is used for displaying and regulating the power of the heat. Two probes of the thermal pressure difference sensor 65 are respectively arranged in the air inlet channel and the air outlet channel of the temperature measuring box 3 to measure the pressure difference between the two.
The utility model discloses retrieve the refrigerant filling, functions such as evacuation test, liquid nitrogen filling are retrieved focus on in the refrigerant control box, it is more convenient to make each test environment's tube coupling, reduces the switching of pipeline connector.
As shown in fig. 11, the refrigerant control box 4 has a first port a for connecting a high-pressure port of the tested member 1, a second port B for connecting a low-pressure port of the tested member 1, a third port C for connecting a refrigerant recovery bottle 8C, a fourth port D for connecting a vacuum pump 8D, a fifth port E for connecting a refrigerant filling bottle 8F, and a sixth port F for connecting a liquid nitrogen bottle 8E, the first port a is connected to a first pipe 41, the first pipe 41 is connected to a third pipe 42 and a fourth pipe 43 which are connected in parallel and each of which is provided with a switching valve, the third pipe 42 is connected to the third port C, the fourth pipe 43 is connected to the fourth port D, the second port B is connected to a second pipe 44, the second pipe 44 is connected to a fifth pipe 45 and a sixth pipe 46 which are connected in parallel and each of which is provided with a switching valve, the fifth pipe 45 is connected to the fifth port E, the sixth pipe 46 is connected to the sixth port F, the first pipe 41 is connected to a first pressure gauge 1, a second pressure gauge PG2 and a micro pressure gauge 48 are connected to the second pipe 44.
The first pipeline 41 and the second pipeline 44 are connected through a seventh pipeline 47 provided with a switch valve, and the seventh pipeline 47 can realize the switching between a high-pressure port and a low-pressure port during a vacuum test.
A pipeline between the third interface C and the refrigerant recovery bottle 8C is provided with a drying filter 8a and a recovery and filling integrated machine 8 b.
The on-off valves of the third to seventh pipes 41 to 47 are referred to as a third line on-off valve 421, a fourth line on-off valve 431, a fifth line on-off valve 451, a sixth line on-off valve 461, and a seventh line on-off valve 471, respectively, and are kept closed before use.
When the refrigerant is recovered, the first interface a is connected with the high-pressure port of the tested piece 1, the second interface B is connected with the low-pressure port of the tested piece 1, the third pipeline switch valve 421 of the third pipeline 42 and the refrigerant recovery bottle 8c are opened, other switch valves are kept closed, and the recovery and filling all-in-one machine 8B is opened, so that the refrigerant can be recovered.
When the refrigerant needs to be filled simultaneously, the fifth pipeline switching valve 451 of the fifth pipeline 45 and the switch of the refrigerant filling bottle 8f can be opened, and the refrigerant can be filled into the tested piece 1.
During the vacuum pumping, the first port a is also connected to the high-pressure port of the tested piece 1, the second port B is connected to the low-pressure port of the tested piece 1, the fourth pipeline switch valve 431 and the vacuum pump 8d of the fourth pipeline 43 are opened, and the other switch valves are kept closed, so that the tested piece 1 can be vacuumized, and the seventh pipeline switch valve 471 of the seventh pipeline 47 can be opened, and meanwhile, the low-pressure port of the tested piece 1 is vacuumized.
The liquid nitrogen filling process is similar to the refrigerant filling process, except that the fifth pipeline switch valve 451 is closed, the sixth pipeline switch valve 461 is opened, and the refrigerant recovery bottle 8c can also be used for recovering the liquid nitrogen.
The processes of refrigerant recovery and filling, liquid nitrogen recovery and filling and vacuumizing need to be operated according to the requirements of maintenance manuals of tested pieces such as air coolers or refrigerators. In the process, each interface of the refrigerant control box has a corresponding connection mode, the switching connection of the interfaces is not needed in the test process, and the operation efficiency can be improved.
The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.
Claims (9)
1. The utility model provides an air-cooler or refrigerator performance's integrated test equipment, includes workstation (7), its characterized in that still includes:
the temperature measuring box (3) is detachably fixed on the workbench (7) and is provided with an air inlet (3a) and an air outlet (3b), and a heat load (32) with adjustable power is arranged in the temperature measuring box;
the temperature control box (2) is arranged on the workbench (7), and forms a cavity with an adjustable ventilation opening (22) with the workbench (7) and the temperature measuring box (3) in an enclosing manner, and the cavity is used for placing a tested piece (1) correspondingly connected with the air inlet (3a) and the air outlet (3b) of the temperature measuring box (3);
the refrigerant control box (4) is used for connecting a refrigerant inlet and a refrigerant outlet of the tested piece (1);
the control cabinet (6) is used for providing a working power supply and connecting the tested piece for measuring voltage, current and power;
and the temperature sensor is arranged inside the control cabinet (6), and the probe extends into the temperature measuring box and the temperature control box respectively.
2. A comprehensive test apparatus for the performance of an air cooler or refrigerator as defined in claim 1 further comprising: the temperature measuring box (3) comprises a frame and a box body, the inner surface and the outer surface of the box body are provided with heat insulation layers, an adjustable partition plate (31) is further arranged inside the temperature measuring box (3), and the adjustable partition plate (31) divides the temperature measuring box (3) into an air inlet channel and an air outlet channel and adjusts the pressure difference between the air inlet channel and the air outlet channel.
3. A comprehensive test apparatus for the performance of an air cooler or refrigerator as defined in claim 2 wherein: the temperature control box (2) is hinged with the frame of the temperature measuring box (3), and the temperature control box (2) is further connected to the frame of the temperature measuring box (3) through a pneumatic telescopic supporting rod (21), so that the temperature control box (2) can be overturned along a hinged shaft and is supported and fixed.
4. A comprehensive test apparatus for the performance of an air cooler or refrigerator as claimed in claim 3, characterized in that: a flow guide adjusting plate (23) is arranged in an adjustable ventilation opening (22) of the temperature control box (2), and the flow guide adjusting plate (23) is connected with an adjusting screw rod (24) and used for adjusting the opening size of the adjustable ventilation opening (22).
5. A comprehensive test apparatus for the performance of air coolers or refrigerators according to claim 4, further comprising: and a transparent observation window is arranged on the side surface of the temperature control box (2).
6. A comprehensive test apparatus for the performance of air coolers or refrigerators according to claim 5, characterised in that: an adjustable direct-current power supply, a multi-path temperature tester, a multi-path power tester, a pressure difference sensing and power regulator are arranged in the control cabinet (6).
7. An integrated test apparatus for the performance of an air cooler or refrigerator as claimed in any one of claims 1 to 6 wherein: the refrigerant control box (4) is provided with a first interface (A) connected with a high-pressure port of the tested piece (1), a second interface (B) connected with a low-pressure port of the tested piece (1), a third interface (C) connected with a refrigerant recovery bottle (8C), a fourth interface (D) connected with a vacuum pump (8D), a fifth interface (E) connected with a refrigerant filling bottle (8F) and a sixth interface (F) connected with a liquid nitrogen bottle (8E), the first interface (A) is connected with a first pipeline (41), the first pipeline (41) is connected with a third pipeline (42) and a fourth pipeline (43) which are connected in parallel and are respectively provided with a switch valve, the third pipeline (42) is connected with the third interface (C), the fourth pipeline (43) is connected with the fourth interface (D), the second interface (B) is connected with a second pipeline (44), the second pipeline (44) is connected with a fifth pipeline (45) and a sixth pipeline (46) which are connected in parallel and are respectively provided with a switch valve, the fifth pipeline (45) is connected with the fifth interface (E), the sixth pipeline (46) is connected with the sixth interface (F), the first pipeline (41) is connected with a first pressure gauge (PG1), and the second pipeline (44) is connected with a second pressure gauge (PG2) and a micro-pressure gauge (48).
8. A comprehensive test apparatus for the performance of an air cooler or refrigerator as defined in claim 7 wherein: the first pipeline (41) and the second pipeline (44) are connected through a seventh pipeline (47) provided with a switch valve.
9. A comprehensive test apparatus for the performance of an air cooler or refrigerator as defined in claim 8 wherein: and a drying filter (8a) and a recycling and filling integrated machine (8b) are arranged on a pipeline between the third interface (C) and the refrigerant recycling bottle (8C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020906171.1U CN212379042U (en) | 2020-05-26 | 2020-05-26 | Comprehensive test equipment for performance of air cooler or refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020906171.1U CN212379042U (en) | 2020-05-26 | 2020-05-26 | Comprehensive test equipment for performance of air cooler or refrigerator |
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| Publication Number | Publication Date |
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| CN212379042U true CN212379042U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020906171.1U Active CN212379042U (en) | 2020-05-26 | 2020-05-26 | Comprehensive test equipment for performance of air cooler or refrigerator |
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| CN (1) | CN212379042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114333481A (en) * | 2022-01-05 | 2022-04-12 | 中国矿业大学徐海学院 | Matching practical training device for household refrigerating system |
-
2020
- 2020-05-26 CN CN202020906171.1U patent/CN212379042U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114333481A (en) * | 2022-01-05 | 2022-04-12 | 中国矿业大学徐海学院 | Matching practical training device for household refrigerating system |
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