CN107101775A - Experimental rig for testing cooling water pump - Google Patents
Experimental rig for testing cooling water pump Download PDFInfo
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- CN107101775A CN107101775A CN201710349329.2A CN201710349329A CN107101775A CN 107101775 A CN107101775 A CN 107101775A CN 201710349329 A CN201710349329 A CN 201710349329A CN 107101775 A CN107101775 A CN 107101775A
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 239000000498 cooling water Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 221
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 description 28
- 238000001514 detection method Methods 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention provides a kind of experimental rig for being used to test cooling water pump, a kind of due to the present invention is used to test in the experimental rig of cooling water pump, the water inlet of water tank is connected with water inlet pipe mouth, and water inlet pipe is connected with the first discharge outlet of water pump to be tested, and first pressure sensor is connected with water inlet pipe；The delivery port of water tank is connected with outlet pipe, and outlet pipe is connected with the first water sucking mouth of water pump to be tested；Second pressure sensor is connected with outlet pipe.So, the pressure differential between the first water sucking mouth of water pump to be tested and the first discharge outlet can be drawn by first pressure sensor and second pressure sensor, moreover, the test water in water tank can be recycled.
Description
Technical field
It is more particularly to a kind of to be used to test automobile use the present invention relates to a kind of experimental rig for being used to test cooling water pump
The experimental rig of electronic water pump.
Background technology
Water pump can extract liquid to provide the driving force of liquid flowing.Water pump is widely used in industrial technical field
In, such as, need to use coolant in the engine of automobile, coolant is circulated in the coolant circulation passage of engine
To be cooled down to engine.Coolant water circulating pump in automobile engine is electronic water pump, is supplied by the 12V power supplys in automobile
Electric system and 48V electric supply systems are powered for it.Electronic water pump needs to carry out test checking to its performance, it is necessary to the finger of test
Mark includes voltage U, electric current I, flow Q, inlet and outlet pressure P and rotating speed n etc.；Needed in test process to the test wrapper residing for water pump
Ambient parameter (temperature T, humidity and air pressure etc.) in border is controlled.
The content of the invention
In view of the need for prior art, it is an object of the invention to provide a kind of experiment dress for being used to test cooling water pump
Put, the pressure differential between water sucking mouth that can easily to water pump and discharge outlet is detected.
To achieve the above object, the present invention provides a kind of experimental rig for being used to test cooling water pump, using following technology
Scheme：A kind of experimental rig for being used to test cooling water pump, including water tank, water inlet pipe, outlet pipe and water pump to be tested, the water
Case has water inlet and delivery port；The water pump to be tested has the first water sucking mouth and the first discharge outlet；The one of the water inlet pipe
End is connected with the water inlet of water tank, and the other end of water inlet pipe is connected with the first discharge outlet of water pump to be tested, is connected on water inlet pipe
There is first pressure sensor；One end of the outlet pipe and the delivery port of water tank are connected, the other end of outlet pipe and water to be tested
The first water sucking mouth connection of pump；Second pressure sensor is connected with outlet pipe.
Preferably, register is provided with the water tank.
Preferably, it is connected with flow detector on the water inlet pipe.
Preferably, it is connected with temperature-detecting device on the outlet pipe.
Preferably, it is also associated with flow control valve on the water inlet pipe.
Preferably, it is also associated with the first stop valve on the outlet pipe.
Preferably, in addition to draining pump, draining pump has the second water sucking mouth and the second discharge outlet, and the second water sucking mouth is connected to
Between first stop valve and first water sucking mouth, the second discharge outlet is connected with water tank.
Preferably, the bottom of water tank is provided with discharging valve.
Preferably, in addition to air compressor, there is air cavity volume, air between the water surface and water tank top surface in water tank
The air pipe of compressor is connected with the air cavity volume.
Preferably, it is connected with the second stop valve on the air pipe.
As described above, a kind of experimental rig for being used to test cooling water pump of the present invention, has the advantages that：
A kind of due to the present invention is used to test in the experimental rig of cooling water pump, and the water inlet of water tank is connected with water inlet pipe mouth, water inlet
Pipe is connected with the first discharge outlet of water pump to be tested, and first pressure sensor is connected with water inlet pipe；The delivery port of water tank is with going out
Water pipe is connected, and outlet pipe is connected with the first water sucking mouth of water pump to be tested；Second pressure sensor is connected with outlet pipe.This
Sample, can draw the first water sucking mouth and the first row of water pump to be tested by first pressure sensor and second pressure sensor
Pressure differential between the mouth of a river, moreover, the test water in water tank can be recycled.
Brief description of the drawings
Fig. 1 is shown as a kind of connection diagram for being used to test the experimental rig of cooling water pump of the present invention；
Component label instructions
The draining pump of 1 water tank 16
The water sucking mouth of 2 water inlet pipe 17 second
The discharge outlet of 3 outlet pipe 18 second
4 discharging valves of water pump 19 to be tested
The air compressor of 5 water inlet 20
The air cavity volume of 6 delivery port 21
The air pipe of 7 first water sucking mouth 22
The stop valve of 8 first discharge outlet 23 second
The stop valve of 9 first pressure sensor 24 the 3rd
The canister of 10 second pressure sensor 25
The ambient pressure sensor of 11 register 26
The environment temperature sensor of 12 flow detector 27
The cooling-water temperature transmitter of 13 temperature-detecting device 28
The coolant pressure sensor of 14 flow control valve 29
15 first stop valves
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to coordinate specification to be taken off
The content shown, so that those skilled in the art is understood with reading, is not limited to enforceable qualifications of the invention, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing the present invention
Under the effect that can be generated and the purpose that can reach, it all should still fall and obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile, the term of cited such as " on ", " under " in this specification, "left", "right", " centre " and " one " is also only
It is easy to understanding for narration, and is not used to limit enforceable scope of the invention, its relativeness is altered or modified, without essence
Change under technology contents, when being also considered as enforceable category of the invention.
As shown in figure 1, the present invention provide it is a kind of be used to testing the experimental rig of cooling water pump, including water tank 1, water inlet pipe 2,
Outlet pipe 3 and water pump to be tested 4, the water tank 1 have water inlet 5 and delivery port 6；The water pump to be tested 4 has first to inhale
The discharge outlet 8 of the mouth of a river 7 and first；One end of the water inlet pipe 2 is connected with the water inlet 5 of water tank 1, and the other end of water inlet pipe 2 is with treating
First discharge outlet 8 of test water pump 4 is connected, and first pressure sensor 9 is connected with water inlet pipe 2；One end of the outlet pipe 3 with
The delivery port 6 of water tank 1 is connected, and the other end of outlet pipe 3 is connected with the first water sucking mouth 7 of water pump 4 to be tested；Connect on outlet pipe 3
It is connected to second pressure sensor 10.A kind of due to the present invention is used to test in the experimental rig of cooling water pump, the water inlet of water tank 1
2 mouthfuls with water inlet pipe of mouth 5 is connected, and water inlet pipe 2 is connected with the first discharge outlet 8 of water pump 4 to be tested, and first is connected with water inlet pipe 2
Pressure sensor 9；The delivery port 6 of water tank 1 is connected with outlet pipe 3, and the first water sucking mouth 7 of outlet pipe 3 and water pump 4 to be tested connects
Connect；Second pressure sensor 10 is connected with outlet pipe 3.So, it can be sensed by first pressure sensor 9 and second pressure
Device 10 and draw the pressure differential between the first water sucking mouth 7 of water pump 4 to be tested and the first discharge outlet 8, moreover, the survey in water tank 1
Water on probation can be recycled.
A kind of in the present invention is used to test in the experimental rig of cooling water pump, and water tank 1 is used to provide to water pump 4 to be tested
Coolant used in being tested, in order that coolant can keeping temperature it is stable, register 11 is provided with the water tank 1,
Register 11 includes cooling device and heater, controls cooling device to reduce cold in water tank 1 by control device
But the temperature of liquid, controls heater to raise the temperature of the coolant in water tank 1 by control device.The energy of register 11
By the temperature control at the first water sucking mouth 7 of water pump to be detected in the demand point between (20~120 DEG C), temperature control error does not surpass
Cross ± 2 DEG C.In order to detect the temperature of the coolant used in tested water pump, can in water tank 1, outlet pipe 3 or water inlet
Temperature-detecting device 13 is connected on pipe 2, it is preferable that as shown in figure 1, being connected with temperature-detecting device 13 on the outlet pipe 3, lead to
Excess temperature detection means 13 can detect the temperature of coolant, and temperature-detecting device 13 passes to the temperature detection value detected
Temperature detection value is compared by control device, control device with temperature preset value, if temperature detection value is higher than temperature preset value,
Then control device control cooling device is opened and reduces the temperature of coolant；If temperature detection value is lower than temperature preset value,
Control device control heater is opened and raises the temperature of coolant.If temperature-detecting device 13 detects the first water suction
Temperature T at mouth 7wT in the water tank 1 detected with cooling-water temperature transmitter 28RDifference beyond above-mentioned temperature control error (± 2 DEG C),
Then control device control register 11 adjusts the temperature of coolant, so that the temperature at the first water sucking mouth 7 is raised and lowered.
A kind of experimental rig for being used to test cooling water pump of the present invention can be to the first water sucking mouth 7 of the water pump tested
And the first pressure differential between discharge outlet 8 is detected, in actual detection demand, the water pump to being tested may be also needed to
Flow detected, can on outlet pipe 3 or water inlet pipe 2 connection traffic detection means 12 to detect the flow of water pump,
Preferably, so, can be to the water pump detected as shown in figure 1, being connected with flow detector 12 on the water inlet pipe 2
Flow detected, when recording test parameter, can by the first water sucking mouth 7 of the water pump tested and the first discharge outlet 8 it
Between pressure differential, the flow for the water pump tested record correspondingly, can also be detected by temperature-detecting device 13 cold
But the temperature of liquid, can so draw between the first water sucking mouth 7 of detected water pump and the first discharge outlet 8 according to record numerical value
Pressure differential, flow, the correlation curve between temperature.Between first water sucking mouth 7 of the water pump detected and the first discharge outlet 8
There is very strong correlation between pressure differential and flow, in order to detect the first water sucking mouth 7 and first corresponding to different flow
Pressure differential between discharge outlet 8, can set flow control valve 14, it is preferable that such as Fig. 1 institutes on water inlet pipe 2 or outlet pipe 3
Show, flow control valve 14 is also associated with the water inlet pipe 2, so, can be flowed through by the regulation of flow control valve 14 to be checked
Survey the flow of water pump.Using the present invention it is a kind of be used to testing the experimental rig of cooling water pump to multiple water pumps 4 to be tested by
When carrying out performance detection individually, complete a water pump performance test after, it is necessary to by complete detection water pump dismantle and incite somebody to action
Next water pump to be tested 4 is connected on experimental rig, it is necessary to stop coolant from water during dismantling and connecting water pump
Flowed out in case 1, the first stop valve 15 can be also connected with the outlet pipe 3, during dismantling and connecting water pump, by the
One stop valve 15 is closed.
Using a kind of experimental rig for being used to testing cooling water pump of the present invention complete to the test of water pump 4 to be tested it
Afterwards, it is necessary to disassemble and will be stored water pump to be detected, if remaining coolant in the water pump of storage, these coolings
Liquid can produce corrosion to the part inside water pump, in order to solve this problem, as shown in figure 1, one kind of the present invention is used to test
The experimental rig of cooling water pump also includes draining pump 16, and draining pump 16 has the second water sucking mouth 17 and the second discharge outlet 18, second
Water sucking mouth 17 is connected between first stop valve 15 and first water sucking mouth 7, and the second discharge outlet 18 is connected with water tank 1.
Need by complete detection water pump in coolant drain it is clean when, first the first stop valve 15 is closed, draining pump is then turned on
16, draining pump 16 examines the first stop valve 15 to the coolant between the first water sucking mouth 7 of the water pump for completing detection, and completion
Coolant in the chamber connected in the water pump of survey with the first water sucking mouth 7 is recycled in water tank 1.As shown in figure 1, in draining pump 16
The second water sucking mouth 17 and water pump to be detected the first water sucking mouth 7 between be additionally provided with the 3rd stop valve 24, in water pump to be detected just
When being tested, the 3rd stop valve 24 is closed.
Using a kind of experimental rig for being used to testing cooling water pump of the present invention complete to the test of water pump 4 to be tested it
Afterwards, experimental rig may long period storage and without using in this case, it is necessary to by water tank 1, water inlet pipe 2, outlet pipe 3 etc.
Coolant drain is clean in pipe-line system.Is discharged water in order to be able to which by the coolant drain in water tank 1, totally, the bottom of water tank 1 is provided with
Valve 19.
In order that can be tested with detection water pump in the case of different system pressures, a kind of preferred reality is used as
Mode is applied, as shown in figure 1, a kind of experimental rig for being used to test cooling water pump of the present invention also includes air compressor 20, water
There is air cavity volume 21, the air pipe 22 of air compressor and the air cavity volume between the water surface and the top surface of water tank 1 in case 1
21 connections.So, compressed gas can be pressed into change the pressure in water tank 1 into water tank 1 by air compressor 20, so that
The pressure in water inlet pipe 2 and outlet pipe 3 is changed, water pump to be detected is carried out under different system pressure conditions
Detection., can be in pressure in order to control the amount of compressed air that the air pipe 22 from air compressor 20 entered in water tank 1
It is connected with the second stop valve 23 on tracheae 22, the second stop valve 23, which has, can adjust compressed air require and to completely closing shape
The function of state, so, can adjust the flow of compressed air, so as to adjust test device by the second stop valve 23 of regulation
System pressure.
When being tested using a kind of experimental rig for testing cooling water pump of the present invention water pump to be detected, survey
Test ring border can produce important influence to test result, in order to make the test environment residing for water pump to be detected relatively stable,
As shown in figure 1, a kind of experimental rig for being used to test cooling water pump of the present invention also includes canister 25, to be detected
When water pump is tested, water pump to be detected is placed in canister 25, canister 25 has regulation such as temperature, humidity
Etc. the function of ambient parameter, so as to control the test environment residing for water pump to be detected.In order to which External Environment is detected, such as
Shown in Fig. 1, ambient pressure sensor 26 and environment temperature sensor 27 can be set in external environment, so as to monitor outer shroud
The parameter in border.In order to monitor the temperature and pressure of the coolant in water tank 1, as shown in figure 1, also being set in the bottom of water tank 1
There are cooling-water temperature transmitter 28 and coolant pressure sensor 29, so as to be monitored to the temperature and pressure of coolant.For
Prevent the difference of the height and position residing for each pressure-detecting device and influence test result, first pressure sensor 9, second is pressed
It is highly identical residing for force snesor 10, coolant pressure sensor 29, it has to be noted that between the pipeline and pressure sensor that are detected
Flexible pipe it is hydraulically full (without air chamber), can so avoid due to the difference for the static pressure that deployment scenarios are different and cause.
A kind of experimental rig for being used to test cooling water pump of the present invention also includes control device, the first pressure sensing
Device 9, second pressure sensor 10, flow detector 12, temperature-detecting device 13, register 11, flow control valve 14,
Canister 25, ambient pressure sensor 26, environment temperature sensor 27, cooling-water temperature transmitter 28, coolant pressure
The grade device of sensor 29 can be connected with control device, and control device, which is broadly divided into, can obtain the inspection of each detection means transmission
The digital data recording system for surveying data, the control system being controlled to each valve and register 11.The hardware group of control device
Cheng You：Test cabinet (Schroff)；Jerk control module, starting switch, emergency stop switch；Industrial computer (IPC), display；Signal
Nurse one's health case；Power supply；Pressure sensor；Wire harness etc. is constituted.Software is constituted：Data acquisition and issuance program.Control device obtains each
The test data and test environment parameter of detection means or sensor passes, and record test result；Control device can be right
Test data and test environment parameter carry out comprehensive analysis and collected；Control device record data is used after Excel forms, convenience
Phase is exported, and analysis, the processing of data are carried out using Excel power；Control device has power-on self-test function, is starting
During test, control device, which carries out self-inspection, ensures that detection means is in normal condition.
The application method to a kind of experimental rig for testing cooling water pump of the present invention is illustrated below, main
To include following operating procedure：
1) control device controls the first stop valve 15 to open, and the second stop valve 23, the 3rd stop valve 24 and waterproof valve are located
In closed mode；
2) control device controls the parameters such as the rotating speed and electric current of water pump to be detected, and the detection of flow detector 12 flows through to be checked
The flow of water pump is surveyed, first pressure sensor 9 and second pressure sensor 10 detect the first water sucking mouth 7 of water pump to be detected respectively
With the pressure at the first discharge outlet 8；
3) control device obtains rotating speed, electric current, flow, first pressure sensor 9 and the second pressure biography of water pump to be detected
The pressure value that sensor 10 is detected, and these data are analyzed and processed；So as to draw the performance data of water pump to be detected.
It should be noted that above-mentioned steps are to a kind of experimental rig for being used to test cooling water pump using the present invention
Application method be illustrated, not to the present invention it is a kind of be used for test cooling water pump experimental rig application method
Limitation.
After being finished to water pump to be detected detection, before water pump to be detected is disassembled from experimental rig, first beat
The 3rd stop valve 24 is opened, and closes the first stop valve 15, starts draining pump 16 and extracts the coolant remained in water pump to be detected, so
Water pump to be detected is disassembled again afterwards.
Long-term water storage can cause aqueous metamorphism impurity and peculiar smell occur in water tank 1, in a long time without using experimental rig
When need to experimental rig carry out waterproof；Comprise the following steps that：1) by the second discharge outlet 18 of draining pump 16 between water tank 1
Pipeline is pulled down from water tank 1, and pipeline is placed in into regulation discharged water area；2) the first stop valve 15, the 3rd stop valve 24 are opened and is prevented
Water valve, opens the coolant in the suction water tank 1 of draining pump 16 and drains into regulation and discharge water area；3) coolant in water tank 1 is cleared
Afterwards, all pipelines are put back into original position, closes waterproof valve.
In summary, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of experimental rig for being used to test cooling water pump, it is characterized in that, including water tank (1), water inlet pipe (2), outlet pipe (3)
With water pump to be tested (4), the water tank (1) has water inlet (5) and delivery port (6)；The water pump to be tested (4) has first
Water sucking mouth (7) and the first discharge outlet (8)；
One end of the water inlet pipe (2) is connected with the water inlet (5) of water tank (1), the other end and the water pump to be tested of water inlet pipe (2)
(4) first pressure sensor (9) is connected with the first discharge outlet (8) connection, water inlet pipe (2)；
One end of the outlet pipe (3) is connected with the delivery port (6) of water tank (1), the other end and the water pump to be tested of outlet pipe (3)
(4) the first water sucking mouth (7) connection；Second pressure sensor (10) is connected with outlet pipe (3).
2. the experimental rig according to claim 1 for being used to test cooling water pump, it is characterised in that：In the water tank (1)
Provided with register (11).
3. the experimental rig according to claim 1 for being used to test cooling water pump, it is characterised in that：The water inlet pipe (2)
On be connected with flow detector (12).
4. the experimental rig according to claim 1 for being used to test cooling water pump, it is characterised in that：The outlet pipe (3)
On be connected with temperature-detecting device (13).
5. the experimental rig according to claim 1 for being used to test cooling water pump, it is characterised in that：The water inlet pipe (2)
On be also associated with flow control valve (14).
6. the experimental rig according to claim 1 for being used to test cooling water pump, it is characterised in that：The outlet pipe (3)
On be also associated with the first stop valve (15).
7. the experimental rig according to claim 6 for being used to test cooling water pump, it is characterised in that：Also include draining pump
(16), draining pump (16) has the second water sucking mouth (17) and the second discharge outlet (18), and the second water sucking mouth (17) are connected to described the
Between one stop valve (15) and first water sucking mouth (7), the second discharge outlet (18) is connected with water tank (1).
8. the experimental rig according to claim 1 for being used to test cooling water pump, it is characterised in that：The bottom of water tank (1)
Provided with discharging valve (19).
9. the experimental rig according to claim 1 for being used to test cooling water pump, it is characterised in that：Also include air to compress
There is air cavity volume (21), the air pipe of air compressor between the water surface and water tank (1) top surface in machine (20), water tank (1)
(22) it is connected with the air cavity volume (21).
10. the experimental rig according to claim 9 for being used to test cooling water pump, it is characterised in that：The air pipe
(22) the second stop valve (23) is connected with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349329.2A CN107101775A (en) | 2017-05-17 | 2017-05-17 | Experimental rig for testing cooling water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349329.2A CN107101775A (en) | 2017-05-17 | 2017-05-17 | Experimental rig for testing cooling water pump |
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| Publication Number | Publication Date |
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| CN107101775A true CN107101775A (en) | 2017-08-29 |
Family
ID=59669043
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710349329.2A Pending CN107101775A (en) | 2017-05-17 | 2017-05-17 | Experimental rig for testing cooling water pump |
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| CN115824691A (en) * | 2023-02-20 | 2023-03-21 | 格瑞海思人居环境科技(江苏)有限公司 | Air source heat pump testing device and testing method thereof |
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| CN109297641A (en) * | 2018-11-30 | 2019-02-01 | 博纳斯威阀门股份有限公司 | A kind of experimental rig for examining valve high-low pressure to seal |
| CN115824691A (en) * | 2023-02-20 | 2023-03-21 | 格瑞海思人居环境科技(江苏)有限公司 | Air source heat pump testing device and testing method thereof |
| CN115824691B (en) * | 2023-02-20 | 2023-09-29 | 格瑞海思人居环境科技(江苏)有限公司 | Air source heat pump testing device and testing method thereof |
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Effective date of registration: 20190328 Address after: Building No. 18, 998 Tongji Road, Baoshan District, Shanghai, 20199 Applicant after: HUAYU PIERBOGE PUMP TECHNOLOGY Co.,Ltd. Address before: 1999 No. 998 Tongji Road, Baoshan District, Shanghai Applicant before: SHANGHAI XINGFU MOTORCYCLE Co.,Ltd. |
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Application publication date: 20170829 |