CN110017948B - Test bench for cooler detection - Google Patents
Test bench for cooler detection Download PDFInfo
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- CN110017948B CN110017948B CN201910361216.3A CN201910361216A CN110017948B CN 110017948 B CN110017948 B CN 110017948B CN 201910361216 A CN201910361216 A CN 201910361216A CN 110017948 B CN110017948 B CN 110017948B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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Abstract
The invention provides a test bench for detecting a cooler, which comprises: the device comprises a control system, a pneumatic chuck, a water tank, a lifting table and a frame; the water tank is arranged in the frame; the water tank can be filled with water and drained; a lifting table is arranged in the water tank and used for bearing the tested cooler; two pneumatic control chucks are also arranged in each water tank and are respectively used for connecting two water gaps of the cooler; and the control system controls the pneumatic control chuck and the lifting table. The pneumatic chuck comprises an outer cylinder, a hollow cavity is arranged in the outer cylinder, and the inner end piston end of the piston rod is arranged in the hollow cavity in the outer cylinder to divide the hollow cavity into a left cavity and a right cavity; the ventilation joint is connected with one end of the outer cylinder and is communicated with the left cavity; a return spring is arranged in the left cavity; the clamping joint is connected to the side wall of the outer cylinder and communicated with the right cavity; the outer end of the piston rod is provided with a compressed rubber block; the piston rod is internally provided with a through vent hole which is communicated with the left cavity and the outer end head of the piston rod. The invention improves the test efficiency of the cooler.
Description
Technical Field
The invention relates to test equipment, in particular to a test bench for detecting a cooler.
Background
The cooler consists of two channels, namely a high-temperature fluid channel and a low-temperature fluid channel, and the temperature of the high-temperature fluid and the temperature of the low-temperature fluid in the cooler are interacted to realize the reduction of the temperature of the high-temperature fluid. The high-temperature fluid channel and the low-temperature fluid channel are strictly isolated, the leakage phenomenon is not generated, the most important working procedure of the delivery detection of the cooler is pressure-resistant water detection, the traditional water detection has single function, the special water detection module needs to be replaced when different coolers are detected, the workload is high, and the labor intensity is high.
Disclosure of Invention
The invention aims to solve the defects of the traditional water detection equipment, and provides a test bench for detecting a cooler, which has the advantages of universality, convenience, labor intensity reduction and operation efficiency improvement. The technical scheme adopted by the invention is as follows:
a test stand for cooler detection, comprising: the device comprises a control system, a pneumatic chuck, a water tank, a lifting table and a frame;
the water tank is arranged in the frame; the water tank can be filled with water and drained;
a lifting table is arranged in the water tank and used for bearing the tested cooler;
two pneumatic control chucks are also arranged in each water tank and are respectively used for connecting two water gaps of the cooler;
and the control system controls the pneumatic control chuck and the lifting table.
Further, the pneumatic chuck comprises an outer cylinder, a piston rod, a ventilation joint, a clamping joint, a return spring and a compressed rubber block;
the outer cylinder is internally provided with a hollow cavity, the inner end piston end of the piston rod is arranged in the hollow cavity in the outer cylinder, and the hollow cavity is divided into a left cavity and a right cavity; the ventilation joint is connected with one end of the outer cylinder and is communicated with the left cavity; a return spring is arranged in the left cavity; the clamping joint is connected to the side wall of the outer cylinder and communicated with the right cavity; the outer end of the piston rod is provided with a compressed rubber block; the piston rod is internally provided with a through vent hole which is communicated with the left cavity and the outer end head of the piston rod.
Furthermore, a limiting piece is arranged on the outer side of the other end of the outer cylinder, a step end is arranged on the outer end of the piston rod, and the compressed rubber block is located between the limiting piece and the step end.
Further, a piston ring is also arranged on the peripheral surface of the inner end piston end of the piston rod.
Further, the control system includes:
the device comprises a pressure regulating valve, a first electromagnetic valve, a second electromagnetic valve, a pneumatic control water supplementing valve, a one-way valve, a third electromagnetic valve, a pneumatic control water draining valve, a fourth electromagnetic valve, a lifting cylinder, a fifth electromagnetic valve, a first flowmeter, a first pneumatic control chuck, a second flowmeter, a sixth electromagnetic valve, a first delay relay module, a second delay relay module, a third delay relay module, a display module, a controller, a first switch, a liquid level meter, a main switch and a power supply conversion module;
the liquid level meter is arranged in the water tank;
one end of the pressure regulating valve is used for connecting with a total air source, and the other end of the pressure regulating valve is connected with an air inlet of the first electromagnetic valve and one end of the one-way valve through a pipeline;
the working port of the first electromagnetic valve is respectively connected with the air inlet of the second electromagnetic valve, the air inlet of the third electromagnetic valve, the air inlet of the fourth electromagnetic valve, the air inlet of the fifth electromagnetic valve and the air inlet of the sixth electromagnetic valve through pipelines; the working port of the second electromagnetic valve is connected with the pneumatic control water supplementing valve through a pipeline, the working port of the third electromagnetic valve is connected with the pneumatic control water draining valve through a pipeline, and the working port of the fourth electromagnetic valve is connected with the lifting cylinder which is used for driving the lifting table;
the working port of the fifth electromagnetic valve is connected with the clamping joint and the ventilation joint of the first pneumatic chuck through pipelines; the first pneumatic chuck is used for connecting with a water gap of the cooler; a first flowmeter is arranged on a pipeline between the fifth electromagnetic valve and the first pneumatic chuck;
the working port of the sixth electromagnetic valve is connected with the clamping joint of the second pneumatic control chuck through a pipeline; the second pneumatic chuck is used for connecting with the other water gap on the cooler; the ventilation joint of the second pneumatic control chuck is connected with the other end of the one-way valve through a pipeline; the conduction direction of the one-way valve is from the other end to one end; a second flowmeter is arranged on a pipeline between the one-way valve and the second pneumatic control chuck;
the controller is electrically connected with the first electromagnetic valve and the second electromagnetic valve respectively;
the controller is electrically connected with one end of the first switch, and the other end of the first switch is electrically connected with the third electromagnetic valve;
the controller is electrically connected with the fourth electromagnetic valve through the third delay relay module;
the controller is electrically connected with the fifth electromagnetic valve through the second delay relay module;
the controller is electrically connected with the sixth electromagnetic valve through the first delay relay module;
the first flowmeter and the second flowmeter are respectively and electrically connected with the controller;
the controller is respectively and electrically connected with the display module and the liquid level meter;
the input of the power conversion module is used for connecting with alternating current, outputting direct current and connecting to the controller through a power supply circuit;
and a main switch is arranged on a power supply line between the power conversion module and the controller.
Still further, still be equipped with the manometer on the pipeline between air-vent valve and the first solenoid valve, the manometer electricity is connected the controller.
Further, an air dryer is provided between the pressure regulating valve and the total air supply.
Further, the controller is also electrically connected with a buzzer.
Furthermore, an indicator light is also arranged on the power supply line between the power conversion module and the controller.
Further, the indicator light is an LED.
The invention has the advantages that:
1) The high-degree automatic control is realized, the water tank can be automatically filled with water, the water is prevented from being leaked, the pneumatic control chuck can be automatically clamped and loosened, the lifting table can be automatically lifted and lowered, and the controller can automatically judge whether the cooler is qualified or not.
2) And the cooler is tested in the water tank, and whether the cooler is qualified can be judged manually by whether bubbles are generated or not.
3) The pneumatic chuck can be adapted to various coolers, and has strong universality.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the operation of the present invention.
FIG. 3 is a block diagram of the air vent cartridge of the present invention.
Detailed Description
The invention will be further described with reference to the following specific drawings and examples.
As shown in fig. 1, the test bench for detecting a cooler provided by the invention comprises a control system 1, a pneumatic chuck 2, a water tank 3, a lifting table 4 and a frame 5;
the water tank 3 is installed in a frame 5; in order to improve the test efficiency, two water tanks 3 may be provided in the frame 5; the cooler is arranged in the water tank 4 for testing, and after the cooler is ventilated, if the cooler leaks, air bubbles can be observed in water, so that a tester can observe conveniently;
the water tank 3 can be filled with water manually and drained manually, for example, a water faucet with water filled at the upper part and a water outlet at the bottom; more preferably, the water tank 3 can also realize automatic water injection and automatic water drainage, for example, the water tank 3 is provided with a pneumatic water supplementing valve and a pneumatic water draining valve;
a lifting table 4 is arranged in the water tank 3 and is used for bearing a cooler to be tested, the lifting table 4 is lowered to a low position during testing, the cooler is immersed into water in the water tank 3, and the lifting table is lifted after testing to lift the cooler for removal;
two pneumatic control chucks 2 are also arranged in each water tank 3 and are respectively used for connecting two water gaps of a cooler; one of the pneumatic chucks 2 is connected with one water port of the cooler for ventilation; the other pneumatic chuck 2 is connected with the other water port of the cooler and is used for air outlet;
the control system 1 controls the pneumatic chuck 2 and the lifting table 4.
As shown in fig. 2, the pneumatic chuck 2 comprises an outer cylinder 201, a piston rod 202, a vent joint 203, a clamping joint 204, a return spring 205 and a compressed rubber block 206;
the outer cylinder 201 is internally provided with a hollow cavity, and the inner end piston end of the piston rod 202 is arranged in the hollow cavity in the outer cylinder 201 to divide the hollow cavity into a left cavity 207 and a right cavity 208; the ventilation joint 203 is connected to one end of the outer cylinder 201 and is communicated with the left cavity 207; a return spring 205 is arranged in the left cavity 207; the clamping joint 204 is connected to the side wall of the outer cylinder 201 and is communicated with the right cavity 208; a compressed glue block 206 is arranged at the outer end of the piston rod 202; a through vent hole is arranged in the piston rod 202 and is communicated with the left cavity 207 and the outer end head of the piston rod 202;
specifically, a limiting piece 209 is arranged on the outer side of the other end of the outer cylinder 201, a step end 210 is arranged on the outer end of the piston rod 202, and the compressed glue block 206 is positioned between the limiting piece 209 and the step end 210;
when the clamping joint 204 is ventilated, the piston rod 202 moves leftwards, the compressed rubber block 206 is extruded, and the compressed rubber block 206 is tightly tensioned in a water gap of the cooler; when the clamping joint 204 is out of air, the return spring 205 enables the piston rod 202 to return, and the pneumatic chuck 2 is loosened in the water gap of the cooler;
the vent joint 203 and the vent hole in the piston rod 202 realize gas communication with the cooler;
piston rings 211 can be further arranged on the circumferential surface of the inner end of the piston rod 202;
as shown in fig. 3, the control system 1 includes:
the air dryer 101, the pressure regulating valve 102, the pressure gauge 103, the first electromagnetic valve 104, the second electromagnetic valve 105, the pneumatic water supplementing valve 106, the check valve 107, the third electromagnetic valve 108, the pneumatic water draining valve 109, the fourth electromagnetic valve 110, the lifting cylinder 111, the fifth electromagnetic valve 112, the first flowmeter 113, the first pneumatic chuck 2a, the second pneumatic chuck 2b, the second flowmeter 117, the sixth electromagnetic valve 118, the first delay relay module 119, the second delay relay module 120, the third delay relay module 121, the buzzer 122, the display module 123, the controller 124, the first switch 125, the liquid level meter 126, the indicator light 127, the main switch 128, the power conversion module 129;
the liquid level meter 126 is installed in the water tank 3; the controller 124 adopts a PLC controller; the first switch 125 and the main switch 128 are both knob switches;
one end of the pressure regulating valve 102 is used for connecting with a total air source, and the other end of the pressure regulating valve is connected with an air inlet of the first electromagnetic valve 104 and one end of the one-way valve 107 through a pipeline; an air dryer 101 may be further provided between the pressure regulating valve 102 and the total air supply; a pressure gauge 2 may be further disposed on the pipeline between the pressure regulating valve 102 and the first electromagnetic valve 104, and the pressure gauge 2 is electrically connected with the controller 124;
the working ports of the first electromagnetic valve 104 are respectively connected with the air inlet of the second electromagnetic valve 105, the air inlet of the third electromagnetic valve 108, the air inlet of the fourth electromagnetic valve 110, the air inlet of the fifth electromagnetic valve 112 and the air inlet of the sixth electromagnetic valve 118 through pipelines; the working port of the second electromagnetic valve 105 is connected with the pneumatic control water supplementing valve 106 through a pipeline, the working port of the third electromagnetic valve 108 is connected with the pneumatic control water draining valve 109 through a pipeline, the working port of the fourth electromagnetic valve 110 is connected with the lifting cylinder 111, and the lifting cylinder 111 is used for driving the lifting table 4;
the working port of the fifth electromagnetic valve 112 is connected with the clamping joint and the ventilation joint of the first pneumatic chuck 2a through pipelines; the first air chuck 2a is used for connecting with a water gap of the cooler 114; a first flowmeter 113 is arranged on a pipeline between the fifth electromagnetic valve 112 and the first pneumatic chuck 2 a;
the working port of the sixth electromagnetic valve 118 is connected with the clamping joint of the second pneumatic chuck 2b through a pipeline; the second pneumatic chuck 2b is used for connecting with another water gap on the cooler 114; the ventilation joint of the second pneumatic chuck 2b is connected with the other end of the one-way valve 107 through a pipeline; the conduction direction of the check valve 107 is from the other end to one end; a second flowmeter 117 is arranged on the pipeline between the one-way valve 107 and the second pneumatic chuck 2 b;
the controller 124 is electrically connected to the first solenoid valve 104 and the second solenoid valve 105, respectively;
the controller 124 is electrically connected to one end of the first switch 125, and the other end of the first switch 125 is electrically connected to the third electromagnetic valve 108;
the controller 124 is electrically connected to the fourth solenoid valve 110 through the third delay relay module 121;
the controller 124 is electrically connected to the fifth solenoid valve 112 through the second delay relay module 120;
the controller 124 is electrically connected to the sixth solenoid valve 118 through the first delay relay module 119;
the first flowmeter 113 and the second flowmeter 117 are electrically connected to the controller 124, respectively;
the controller 124 is electrically connected with the buzzer 122, the display module 123 and the liquid level meter 126 respectively;
the input of the power conversion module 129 is used for connecting with alternating current, outputting direct current and connecting to the controller 124 through a power supply line;
a main switch 128 is provided on the power supply line between the power conversion module 129 and the controller 124; an indicator light 127 is also provided on the power supply line between the power conversion module 129 and the controller 124;
the first electromagnetic valve 104 is a main switch for controlling a gas path, and when the heat engine of the controller 123 is stabilized, the first electromagnetic valve 104 is opened, and the gas path is communicated; compressed air provided by an external air source flows to the electromagnetic valves 104, 105, 108, 110, 112 and 118 after passing through the air dryer 101 and the pressure regulating valve 102;
the controller 123 recognizes the signal of the liquid level meter 125 and controls the second electromagnetic valve 105 to realize the automatic water supplementing function;
the controller 123 controls the third electromagnetic valve 108, and when the test bench needs to drain water, the third electromagnetic valve 108 is opened, so that an automatic water drain function is realized;
the fourth electromagnetic valve 110 controls the lifting action of the lifting cylinder 111 to realize the lifting of the lifting table; about 10 seconds after the two air-controlled chucks 2a, 2b lock the two water ports of the cooler 114, the lift table starts to descend; the fourth electromagnetic valve 110 is controlled by the third delay relay module 121, the lifting platform descends into the water tank after the lifting cylinder 111 is ventilated, the ventilation time is 1min, the third delay relay module 121 is powered off after 1min, the fourth electromagnetic valve 110 resets to disconnect the air path, and the lifting cylinder 111 ascends by means of the spring reset lifting platform;
the fifth electromagnetic valve 112 controls the first air control chuck 2a to perform locking action and simultaneously ventilates the cooler 114; the fifth electromagnetic valve 112 can realize the locking action of the first pneumatic chuck 2a about several seconds after being opened; the first air control chuck 2a locks one water gap of the cooler 114 and simultaneously ventilates the inside of the cooler 114, the ventilation time of the first air control chuck 2a is 2min, and the ventilation time is controlled by the second delay relay module 120; the first flow meter 113 records the flow and feeds back to the controller 124; when the cooler 114 is intact, the flow rate value of the first flow meter 113 is 0; after 2min, the gas is automatically cut off and the pressure is relieved, and the first pneumatic chuck 2a is loosened;
the sixth solenoid valve 118 operates in synchronization with the fifth solenoid valve 112; the sixth electromagnetic valve 118 controls the second pneumatic chuck 2b to lock, and the second pneumatic chuck 2b can be locked about several seconds after the sixth electromagnetic valve 118 is opened; the second pneumatic chuck 2b locks the other water port of the cooler 114; the second pneumatic chuck 2b has a clamping joint vent time of 2min, controlled by the first delay relay module 119; the second flowmeter 117 records the flow and feeds back to the controller 124; when the cooler 114 is intact, the flow rate value of the second flow meter 117 is 0; after 2min, the air is automatically cut off and the pressure is relieved, and the second pneumatic chuck 2b is loosened;
the controller 124 compares the flow values of the two flow meters, determines that the cooler leaks air when the deviation exceeds a set threshold value, sends out alarm sound through the buzzer, and displays leakage information and unqualified information through the display module; normally, when the cooler 114 leaks, the flow rate value of the first flow meter 113 is not 0, and the flow rate value of the second flow meter 117 is 0;
the check valve 107 functions in: when the external air source is in a problem or needs to be reconnected, the air pressure is suddenly lower than the air pressure in the internal pipeline of the test bench, the internal air pressure can be leaked to the outside through the one-way valve, and at the moment, if the cooler 114 is intact, the first flowmeter 113 and the second flowmeter 117 can have flow values, and the flow values are equal or very close; if there is a significant deviation in the flow values of the first flow meter 113 and the second flow meter 117, it is still possible to determine that the chiller leaks;
the input of the power conversion module 129 is 220v alternating current, and the alternating current is converted into 24v direct current to be supplied to the test bench for use; after the main switch 128 is turned on, the indicator light 127 is turned on, and the controller 124 waits for detection operation.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (9)
1. A test stand for detecting a cooler, comprising: the device comprises a control system (1), a pneumatic chuck (2), a water tank (3), a lifting table (4) and a frame (5);
the water tank (3) is arranged in the frame (5); the water tank (3) can be filled with water and drained;
a lifting table (4) is arranged in the water tank (3) and is used for bearing the tested cooler;
two pneumatic control chucks (2) are also arranged in each water tank (3) and are respectively used for connecting two water gaps of the cooler;
the control system (1) controls the pneumatic control chuck (2) and the lifting table (4);
the control system (1) comprises:
the hydraulic control system comprises a pressure regulating valve (102), a first electromagnetic valve (104), a second electromagnetic valve (105), a pneumatic control water supplementing valve (106), a one-way valve (107), a third electromagnetic valve (108), a pneumatic control water draining valve (109), a fourth electromagnetic valve (110), a lifting cylinder (111), a fifth electromagnetic valve (112), a first flowmeter (113), a first pneumatic control chuck (2 a), a second pneumatic control chuck (2 b), a second flowmeter (117), a sixth electromagnetic valve (118), a first delay relay module (119), a second delay relay module (120), a third delay relay module (121), a display module (123), a controller (124), a first switch (125), a liquid level meter (126), a main switch (128) and a power supply conversion module (129);
the liquid level meter (126) is arranged in the water tank (3);
one end of the pressure regulating valve (102) is used for connecting with a total air source, and the other end of the pressure regulating valve is connected with an air inlet of the first electromagnetic valve (104) and one end of the one-way valve (107) through a pipeline;
the working port of the first electromagnetic valve (104) is respectively connected with the air inlet of the second electromagnetic valve (105), the air inlet of the third electromagnetic valve (108), the air inlet of the fourth electromagnetic valve (110), the air inlet of the fifth electromagnetic valve (112) and the air inlet of the sixth electromagnetic valve (118) through pipelines; the working port of the second electromagnetic valve (105) is connected with the pneumatic control water supplementing valve (106) through a pipeline, the working port of the third electromagnetic valve (108) is connected with the pneumatic control water draining valve (109) through a pipeline, the working port of the fourth electromagnetic valve (110) is connected with the lifting cylinder (111), and the lifting cylinder (111) is used for driving the lifting table (4);
the working port of the fifth electromagnetic valve (112) is connected with the clamping joint and the ventilation joint of the first pneumatic chuck (2 a) through pipelines; the first pneumatic chuck (2 a) is used for connecting with a water gap of the cooler (114); a first flowmeter (113) is arranged on a pipeline between the fifth electromagnetic valve (112) and the first pneumatic chuck (2 a);
the working port of the sixth electromagnetic valve (118) is connected with the clamping joint of the second pneumatic control chuck (2 b) through a pipeline; the second pneumatic chuck (2 b) is used for connecting with the other water gap on the cooler (114); the ventilation joint of the second pneumatic control chuck (2 b) is connected with the other end of the one-way valve (107) through a pipeline; the conduction direction of the one-way valve (107) is from the other end to one end; a second flowmeter (117) is arranged on a pipeline between the one-way valve (107) and the second pneumatic chuck (2 b);
the controller (124) is electrically connected with the first electromagnetic valve (104) and the second electromagnetic valve (105) respectively;
the controller (124) is electrically connected with one end of the first switch (125), and the other end of the first switch (125) is electrically connected with the third electromagnetic valve (108);
the controller (124) is electrically connected with the fourth electromagnetic valve (110) through the third delay relay module (121);
the controller (124) is electrically connected with the fifth electromagnetic valve (112) through the second delay relay module (120);
the controller (124) is electrically connected with the sixth electromagnetic valve (118) through the first delay relay module (119);
the first flowmeter (113) and the second flowmeter (117) are respectively electrically connected with the controller (124);
the controller (124) is respectively and electrically connected with the display module (123) and the liquid level meter (126);
the input of the power conversion module (129) is used for connecting with alternating current, outputting direct current and being connected to the controller (124) through a power supply circuit;
a main switch (128) is arranged on a power supply line between the power supply conversion module (129) and the controller (124);
the controller (124) adopts a PLC controller; the first switch (125) and the main switch (128) are both knob switches.
2. The test bench for detecting a cooler according to claim 1, wherein,
the pneumatic chuck (2) comprises an outer cylinder (201), a piston rod (202), a ventilation joint (203), a clamping joint (204), a return spring (205) and a compressed rubber block (206);
the outer cylinder (201) is internally provided with a hollow cavity, the inner end piston end of the piston rod (202) is arranged in the hollow cavity in the outer cylinder (201), and the hollow cavity is divided into a left cavity (207) and a right cavity (208); the ventilation joint (203) is connected with one end of the outer cylinder (201) and is communicated with the left cavity (207); a return spring (205) is arranged in the left cavity (207); the clamping joint (204) is connected to the side wall of the outer cylinder (201) and is communicated with the right cavity (208); the outer end of the piston rod (202) is provided with a compressed rubber block (206); the piston rod (202) is internally provided with a through vent hole which is communicated with the left cavity (207) and the outer end head of the piston rod (202).
3. The test bench for detecting a cooler according to claim 2, wherein,
a limiting piece (209) is arranged on the outer side of the other end of the outer cylinder (201), a step end (210) is arranged on the outer end of the piston rod (202), and the compressed glue block (206) is located between the limiting piece (209) and the step end (210).
4. The test bench for detecting a cooler according to claim 2, wherein,
a piston ring (211) is also arranged on the peripheral surface of the inner end piston end of the piston rod (202).
5. The test bench for detecting a cooler according to claim 1, wherein,
a pressure gauge (2) is further arranged on a pipeline between the pressure regulating valve (102) and the first electromagnetic valve (104), and the pressure gauge (2) is electrically connected with a controller (124).
6. The test bench for detecting a cooler according to claim 1, wherein,
an air dryer (101) is also provided between the pressure regulating valve (102) and the total air supply.
7. The test bench for detecting a cooler according to claim 1, wherein,
the controller (124) is also electrically connected with a buzzer (122).
8. The test bench for detecting a cooler according to claim 1, wherein,
an indicator lamp (127) is also arranged on the power supply line between the power supply conversion module (129) and the controller (124).
9. The test bench for detecting a cooler according to claim 8, wherein,
the indicator light (127) is an LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910361216.3A CN110017948B (en) | 2019-04-30 | 2019-04-30 | Test bench for cooler detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910361216.3A CN110017948B (en) | 2019-04-30 | 2019-04-30 | Test bench for cooler detection |
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| Publication Number | Publication Date |
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| CN110017948A CN110017948A (en) | 2019-07-16 |
| CN110017948B true CN110017948B (en) | 2023-09-19 |
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| CN201910361216.3A Active CN110017948B (en) | 2019-04-30 | 2019-04-30 | Test bench for cooler detection |
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| CN110735749B (en) * | 2019-11-05 | 2021-01-26 | 哈尔滨电机厂有限责任公司 | System for measuring cooling efficiency of bearing cooler of hydraulic generator |
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