CN215566534U - Urea pump performance testing device - Google Patents
Urea pump performance testing device Download PDFInfo
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- CN215566534U CN215566534U CN202120979624.8U CN202120979624U CN215566534U CN 215566534 U CN215566534 U CN 215566534U CN 202120979624 U CN202120979624 U CN 202120979624U CN 215566534 U CN215566534 U CN 215566534U
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Abstract
The utility model relates to a urea pump performance testing device, which comprises a vacuum water storage tank connected with an inlet end of a testing urea pump, a vacuum pump for controlling the pressure of the vacuum water storage tank, an electronic scale connected with the vacuum water storage tank and used for weighing the vacuum water storage tank, a pressure tank connected with an outlet end of the testing urea pump, an air compressor connected with the pressure tank and used for controlling the pressure in the pressure tank, a waste water tank communicated with the pressure tank, and a control unit, wherein the control unit is used for controlling the vacuum pump and the air compressor to work, is connected with the electronic scale, and records and processes data on the electronic scale. By adopting the technical scheme, the pressure in a high-altitude area can be simulated for the urea pump to perform performance test so as to confirm whether the urea pump is qualified.
Description
Technical Field
The utility model relates to the field of urea pumps, in particular to a performance testing device for a urea pump.
Background
The urea pump is an important component of the urea solution injection metering system, and has the main functions of pumping the urea solution in the urea tank, keeping a certain pressure and then conveying the urea solution to the injection unit to meet the requirements of the injection metering system on flow and pressure.
The urea pump needs to be subjected to performance testing after production is completed, and particularly needs to be subjected to performance testing in a high-altitude area so as to test whether the urea pump normally works in the high-altitude area, so that a testing device capable of simulating the pressure in the high-altitude area is needed so as to facilitate performance testing of the urea pump.
Disclosure of Invention
The purpose of the utility model is as follows: in order to overcome the defects of the prior art, the utility model provides a urea pump performance testing device which can simulate the pressure of a high-altitude area for the performance test of a urea pump so as to confirm whether the urea pump is qualified or not.
The technical scheme of the utility model is as follows: the utility model provides a urea pump capability test device, contains the vacuum water storage tank of the inlet end of being connected with the test urea pump, controls the vacuum pump of the pressure of vacuum water storage tank, connects in vacuum water storage tank and is used for weighing the electronic scale of vacuum water storage tank, still contains the overhead tank who is connected with the outlet end of test urea pump, connects in the air compressor machine of the pressure of overhead tank and control pressure jar and the waste water tank that communicates with the overhead tank, still contains the control unit, the control unit is used for controlling vacuum pump and air compressor machine work, and is connected with the electronic scale.
By adopting the technical scheme, the control unit controls the vacuum pump to vacuumize the vacuum water storage tank to simulate the altitude state of the plateau, and simultaneously controls the air compressor to work, so that the pressure value in the pressure range is consistent with the design data and is kept stable, the urea pump is started, the inlet end of the urea pump extracts the liquid in the vacuum water storage tank, is used for simulating the extraction of liquid by a urea pump under the condition of high altitude, the liquid is converted by the urea pump and then is conveyed into a pressure tank through the outlet end of the urea pump, the urea pump is simulated to discharge liquid into the pressure tank under the working condition load transition state, the power supply of the urea pump is turned off after continuous work is carried out for a set time, data of the electronic scale at the moment are recorded, the control system calculates the weight difference between the pre-detection weight and the post-detection weight, corresponding data are output through internal data conversion, whether the performance of the urea pump is qualified or not is automatically judged, and one working cycle is completed.
Wherein, testing arrangement contains the self-checking device, the self-checking device contains water tank, water storage tank and first liquid level detection unit, and the water tank is through electromagnetic ball valve and water storage tank intercommunication, and the water storage tank still is connected with the second solenoid valve through first solenoid valve and vacuum water storage tank intercommunication on the vacuum water storage tank, first liquid level detection unit is used for detecting the liquid level of vacuum water storage tank to feed back in the control unit, the steerable electromagnetic ball valve of control unit, first solenoid valve and second solenoid valve open or close.
Adopt the aforesaid to further set up again, before carrying out performance test to the urea pump, testing arrangement need detect whether up to standard through first liquid level detection unit in the vacuum water storage tank earlier, when liquid in the vacuum water storage tank does not reach the standard value of setting for, first liquid level detection unit feeds back data in the control unit, the control unit opens the electromagnetic ball valve and makes the liquid in the water tank flow in the water storage tank, and simultaneously, the control unit opens the volume of opening of first solenoid valve and second solenoid valve, make the liquid in the water storage tank can flow in just empty water storage tank, up to standard liquid level, the control unit control electromagnetic ball valve, first solenoid valve and second solenoid valve are closed.
Wherein, testing arrangement contains pressure balance controlling means, pressure balance controlling means contains third solenoid valve, fourth solenoid valve and second liquid level detecting element, and the third solenoid valve is located between air compressor machine and the overhead tank, and the fourth solenoid valve is located between overhead tank and the waste water tank, second liquid level detecting element is used for detecting the liquid level in the overhead tank to feed back in the control unit, opening or closing of control unit control third solenoid valve and fourth solenoid valve.
Adopt above-mentioned further setting again, when the liquid level of the liquid in the overhead tank exceeded the setting value, second liquid level detecting element fed back data in the control unit, the opening of third solenoid valve and fourth solenoid valve is controlled to the control unit for the air compressor machine can be carried unnecessary liquid to the waste water tank in.
Drawings
FIG. 1 is a relationship diagram of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the description in the present invention as referring to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary that a person skilled in the art can realize the technical solutions, and when the technical solutions are contradictory or cannot be realized, such a combination of the technical solutions should be considered to be absent and not within the protection scope of the present invention.
As shown in fig. 1, the device for testing the performance of the urea pump of the present invention comprises a vacuum water storage tank connected to an inlet end of the urea pump, a vacuum pump for controlling the pressure of the vacuum water storage tank, an electronic scale connected to the vacuum water storage tank and used for weighing the vacuum water storage tank, a pressure tank connected to an outlet end of the urea pump, an air compressor connected to the pressure tank and used for controlling the pressure in the pressure tank, a waste water tank communicated with the pressure tank, and a control unit used for controlling the vacuum pump and the air compressor and connected to the electronic scale.
The control unit controls the vacuum pump to vacuumize the vacuum water storage tank, the plateau altitude state is simulated, the control unit also controls the air compressor to work simultaneously, the pressure value in the pressure range is consistent with the design data and is kept stable, the urea pump is started, the inlet end of the urea pump extracts liquid in the vacuum water storage tank and is used for simulating the urea pump to extract liquid under the condition of high altitude, the liquid is converted through the urea pump and is conveyed into the pressure tank through the outlet end of the urea pump, the liquid is discharged into the pressure tank under the working condition load conversion state through the urea pump, the urea pump power supply is closed and data of the electronic scale is recorded after the urea pump continuously works for the set time, the control system calculates the weight difference between the pre-detection value and the post-detection value, corresponding data are output through internal data conversion, whether the performance of the urea pump is qualified or not is judged automatically, and one-time working cycle is completed.
Wherein, testing arrangement contains the self-checking device, the self-checking device contains water tank, water storage tank and first liquid level detection unit, and the water tank is through electromagnetic ball valve and water storage tank intercommunication, and the water storage tank still is connected with the second solenoid valve through first solenoid valve and vacuum water storage tank intercommunication on the vacuum water storage tank, first liquid level detection unit is used for detecting the liquid level of vacuum water storage tank to feed back in the control unit, the steerable electromagnetic ball valve of control unit, first solenoid valve and second solenoid valve open or close.
Before carrying out performance test to the urea pump, testing arrangement need be earlier whether up to standard through the liquid level in the first liquid level detection unit detection vacuum water storage tank, when liquid in the vacuum water storage tank does not reach the standard value of setting for, first liquid level detection unit is with data feedback in the control unit, the control unit opens the electromagnetic ball valve and makes the liquid inflow water storage tank in the water tank, and simultaneously, the control unit opens the volume of opening of first solenoid valve and second solenoid valve, make the liquid in the water storage tank can flow into just empty water storage tank, up to liquid level up to standard, the control unit control electromagnetic ball valve, first solenoid valve and second solenoid valve are closed.
Wherein, testing arrangement contains pressure balance controlling means, pressure balance controlling means contains third solenoid valve, fourth solenoid valve and second liquid level detecting element, and the third solenoid valve is located between air compressor machine and the overhead tank, and the fourth solenoid valve is located between overhead tank and the waste water tank, second liquid level detecting element is used for detecting the liquid level in the overhead tank to feed back in the control unit, opening or closing of control unit control third solenoid valve and fourth solenoid valve.
When the liquid level of the liquid in the pressure tank exceeds a set value, the second liquid level detection unit feeds data back to the control unit, and the control unit controls the opening amount of the third electromagnetic valve and the fourth electromagnetic valve, so that the air compressor can convey redundant liquid into the waste water tank.
Claims (3)
1. The utility model provides a urea pump capability test device, its characterized in that contains the vacuum water storage tank of the inlet end connection with the test urea pump, controls the vacuum pump of the pressure of vacuum water storage tank, is used for weighing the electronic scale of vacuum water storage tank, still contains the overhead tank who is connected with the outlet end of test urea pump, connects in the air compressor machine of the pressure in overhead tank and the control pressure jar and with the waste water tank of overhead tank intercommunication, still contains the control unit, the control unit is used for controlling vacuum pump and air compressor machine work, and is connected with the electronic scale.
2. The device of claim 1, wherein the testing device comprises a self-testing device, the self-testing device comprises a water tank, a water storage tank and a first liquid level detection unit, the water tank is communicated with the water storage tank through an electromagnetic ball valve, the water storage tank is communicated with the vacuum water storage tank through a first electromagnetic valve, a second electromagnetic valve is further connected to the vacuum water storage tank, the first liquid level detection unit is used for detecting the liquid level of the vacuum water storage tank and feeding back the liquid level to the control unit, and the control unit can control the electromagnetic ball valve, the first electromagnetic valve and the second electromagnetic valve to be opened or closed.
3. The urea pump performance testing device of claim 1 or 2, wherein the testing device comprises a pressure balance control device, the pressure balance control device comprises a third electromagnetic valve, a fourth electromagnetic valve and a second liquid level detection unit, the third electromagnetic valve is arranged between the air compressor and the pressure tank, the fourth electromagnetic valve is arranged between the pressure tank and the waste water tank, the second liquid level detection unit is used for detecting the liquid level in the pressure tank and feeding back the liquid level to the control unit, and the control unit controls the third electromagnetic valve and the fourth electromagnetic valve to be opened or closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120979624.8U CN215566534U (en) | 2021-05-08 | 2021-05-08 | Urea pump performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120979624.8U CN215566534U (en) | 2021-05-08 | 2021-05-08 | Urea pump performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215566534U true CN215566534U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120979624.8U Active CN215566534U (en) | 2021-05-08 | 2021-05-08 | Urea pump performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215566534U (en) |
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2021
- 2021-05-08 CN CN202120979624.8U patent/CN215566534U/en active Active
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