CN219161615U - Secondary water supply check valve test system - Google Patents
Secondary water supply check valve test system Download PDFInfo
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- CN219161615U CN219161615U CN202223227689.0U CN202223227689U CN219161615U CN 219161615 U CN219161615 U CN 219161615U CN 202223227689 U CN202223227689 U CN 202223227689U CN 219161615 U CN219161615 U CN 219161615U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model provides a secondary water supply check valve test system. The secondary water supply check valve test system includes: a base; the water supply unit, the water tank and the test branch are fixed on the base; the water supply unit is connected with the water tank through a first pipeline and is connected with the test branch through a second pipeline; and the control system is electrically connected with the test branch and is used for testing the check valve on the test branch according to the water pressure in the check valve on the test branch. The scheme of the utility model can measure the service life of the check valve after fatigue movement and evaluate the product performance of the check valve.
Description
Technical Field
The utility model relates to a test system, in particular to a secondary water supply check valve test system.
Background
The check valve is an important valve type in a secondary water supply system, is mainly applied to the water outlet side of the water pump, and is used for preventing the water medium at the outlet side from flowing backwards and impacting. In the actual use process, the check valve can be opened and closed continuously according to the water demand of a user, and the starting and closing frequency is not lower than 6-8 times/hour. Such frequent opening and closing can result in a degree of non-return failure of the check valve as the service life increases. In the existing check valve detection standards, only static appearance inspection, shell test and sealing test are aimed at. Failure caused by fatigue movement cannot be detected temporarily, and fatigue life estimation can be performed only according to empirical values.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a secondary water supply check valve testing system for testing the service life of a check valve after fatigue movement.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
an embodiment of the present utility model provides a secondary water supply check valve test system including:
a base;
the water supply unit, the water tank and the test branch are fixed on the base;
the water supply unit is connected with the water tank through a first pipeline and is connected with the test branch through a second pipeline;
and the control system is electrically connected with the test branch and is used for testing the check valve on the test branch according to the water pressure in the check valve on the test branch.
Optionally, the test branch includes:
the water storage main pipe is connected with a second pipeline of the water supply unit, and water in the water tank enters the water supply unit through a first pipeline and enters the water storage main pipe through the second pipeline;
and the control system tests the check valve according to the water pressure on the at least one test pipeline.
Optionally, the at least one test line comprises: the first test pipeline, the second test pipeline, the third test pipeline and the fourth test pipeline;
the control system tests the check valve according to the water pressures on the first test pipeline, the second test pipeline, the third test pipeline and the fourth test pipeline.
Optionally, the first test pipeline, the second test pipeline, the third test pipeline and the fourth test pipeline all include:
one end of the water inlet pipeline is connected with the water storage main pipe, and a check valve is arranged on the water inlet pipeline;
one end of the pressure relief pipeline is connected with the water tank, and the other end of the pressure relief pipeline is connected with the water inlet pipeline;
the energy accumulator is connected with the other end of the water inlet pipeline and is connected with the water tank through a water return pipeline.
Optionally, a water inlet electromagnetic valve is further installed on the water inlet pipeline.
Optionally, a pressure relief electromagnetic valve is installed on the pressure relief pipeline, the pressure relief pipeline is connected with the water inlet pipeline through a four-way valve, and the check valve is located between the four-way valve and the energy accumulator.
Optionally, the energy accumulator is connected with the other end of the water inlet pipeline through a hose, and the check valve is located between the four-way valve and the hose.
Optionally, the pipeline extending out of the four-way valve is connected with a low pressure sensor through a first three-way valve.
Optionally, a water return electromagnetic valve is installed on the water return pipeline.
Optionally, a high pressure sensor is connected to the pipeline between the accumulator and the connecting end of the water return pipeline through a second three-way valve, and the control system tests the check valve according to the pressure value of the high pressure sensor.
The scheme of the utility model at least comprises the following beneficial effects:
the secondary water supply check valve test system according to the above scheme of the present utility model comprises: a base; the water supply unit, the water tank and the test branch are fixed on the base; the water supply unit is connected with the water tank through a first pipeline and is connected with the test branch through a second pipeline; and the control system is electrically connected with the test branch and is used for testing the check valve on the test branch according to the water pressure in the check valve on the test branch, so that the service life of the check valve after fatigue movement can be measured, and the product performance of the check valve can be evaluated.
Drawings
Fig. 1 is a perspective view of a secondary water supply check valve test system provided by an embodiment of the present utility model.
Fig. 2 is a right side view of a secondary water supply check valve testing system provided by an embodiment of the present utility model.
Fig. 3 is a front view of a secondary water supply check valve testing system provided by an embodiment of the present utility model.
Reference numerals illustrate:
1. a control system; 2. a water supply unit; 3. a water tank; 4. a test branch; 5. a base; 41. a water storage main pipe; 42. a first test line; 43. a second test line; 44. a third test line; 45. a fourth test line; 51. a first upright; 52. a second upright; 411. a water inlet pipeline; 412. a pressure relief pipeline; 413. an accumulator; 414. a water return line; 421. a check valve; 422. a water inlet electromagnetic valve; 423. a pressure relief solenoid valve; 424. a four-way valve; 425. a hose; 426. a first three-way valve; 427. a backwater electromagnetic valve; 428. a second three-way valve; 431. a low pressure sensor; 432. a high pressure sensor.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, an embodiment of the present utility model provides a secondary water supply check valve test system, including:
a base 5; a water supply unit 2, a water tank 3 and a test branch 4 which are fixed on the base 5;
the water supply unit 2 is connected to the water tank 3 via a first line (not shown) and to the test branch 4 via a second line (not shown);
and the control system 1 is electrically connected with the test branch 4 and tests the check valve 421 on the test branch 4 according to the water pressure in the check valve 421 on the test branch 4.
In this embodiment of the utility model, under the control of the control system 1, test water flows out of the water tank 3 through the water supply unit 2, into the test branch 4, through the check valve 421 to be tested, and back into the water tank 3, which is a test round; during this test run, the control system 1 monitors the pressure value on the test branch 4; this test cycle is repeated until the control system 1 monitors that the pressure on the test branch 4 reaches a preset pressure value, and it can be determined that the check valve 421 is functional.
In an alternative embodiment of the present utility model, as shown in fig. 3, the test branch 4 includes:
a water storage main pipe 41, wherein the water storage main pipe 41 is connected with a second pipeline of the water supply unit 2, and water in the water tank 3 enters the water supply unit 2 through a first pipeline and enters the water storage main pipe 41 through the second pipeline;
at least one test pipeline connected with the water storage main pipe 41, water flows to the at least one test pipeline through the water storage main pipe 41, and the control system 1 tests the check valve 421 according to the water pressure on the at least one test pipeline.
As shown in fig. 3, in an alternative embodiment of the present utility model, at least one test line includes: a first test line 42, a second test line 43, a third test line 44 and a fourth test line 45; preferably, 4 test pipelines are provided in the embodiment of the utility model, and of course, fewer or more test pipelines can be provided according to actual test requirements;
the control system 1 tests the check valve 421 according to the water pressures on the first, second, third and fourth test lines 42, 43, 44 and 45; the 4 test pipelines can work under the control of the control system 1 respectively or simultaneously without mutual interference.
As shown in fig. 2, in an alternative embodiment of the present utility model, the first test line 42, the second test line 43, the third test line 44, and the fourth test line 45 each include:
a water inlet pipeline 411, wherein one end of the water inlet pipeline 411 is connected with the water storage main pipe 41, and a check valve 421 is arranged on the water inlet pipeline 411; when the water inlet pipe 411 and the water supply unit 2 are opened, water flows out from the water storage main 41 and flows to the check valve 421 through the water inlet pipe 411;
a pressure release pipeline 412, wherein one end of the pressure release pipeline 412 is connected with the water tank 3, and the other end is connected with the water inlet pipeline 411; when the test is needed, the pressure relief pipeline 412 is opened, and water flows back to the water tank 3 from the water inlet pipeline 411 through the pressure relief pipeline 412;
an accumulator 413 connected to the other end of the water intake pipe 411 and connected to the water tank 3 through a water return pipe 414; during the detection, the control system 1 opens the water supply unit 2 and the water inlet pipe 411 and closes the water return pipe 414, and water can flow out of the water inlet pipe 411 through the check valve 421 and into the accumulator 413.
In an alternative embodiment of the present utility model, a water inlet electromagnetic valve 422 is further installed on the water inlet pipeline 411, and the water inlet electromagnetic valve 422 can control the opening and closing of the water inlet pipeline 411.
In an alternative embodiment of the present utility model, a pressure relief electromagnetic valve 423 is installed on the pressure relief pipeline 412, the pressure relief pipeline 412 is connected with the water inlet pipeline 411 through a four-way valve 424, and the check valve 421 is located between the four-way valve 424 and the accumulator 413; the pressure relief electromagnetic valve 423 can control the opening and closing of the pressure relief pipeline 412, and when the pressure relief electromagnetic valve 423 is opened under the control of the control system 1, water at the water inlet end of the check valve 421 flows back to the pressure relief pipeline 412 through the four-way valve 424.
In an alternative embodiment of the present utility model, the accumulator 413 is connected to the other end of the water inlet pipe 411 through a hose 425, and the check valve 421 is located between the four-way valve 424 and the hose 425; when the water supply unit 2 and the water inflow solenoid valve 422 are opened and the water return line 414 is closed, water flowing out of the check valve 421 flows into the accumulator 413 through the hose 425.
In an alternative embodiment of the present utility model, the pipeline extending from the four-way valve 424 is connected to a low pressure sensor 431 through a first three-way valve 426; the low pressure sensor 431 can monitor the pressure value of the water inlet end of the check valve 421; when water flows into the accumulator 413, the control system 1 monitors that the pressure of the water return end of the check valve 421 reaches a certain preset value, closes the water inlet electromagnetic valve 422, simultaneously opens the pressure relief electromagnetic valve 423, and observes the value of the low pressure sensor 431.
In an alternative embodiment of the present utility model, a water return electromagnetic valve 427 is installed on the water return pipeline 414, and the water return electromagnetic valve 427 can control the opening and closing of the water return pipeline 414.
In an alternative embodiment of the present utility model, a high pressure sensor 432 is connected to the pipe between the accumulator 413 and the connection end of the water return pipe 414 through a second three-way valve 428, the high pressure sensor 432 can monitor the pressure value of the water return end of the check valve 421, after the value of the low pressure sensor 431 returns to zero, whether the value of the high pressure sensor 432 decreases is observed, if the value of the high pressure sensor 432 does not decrease within a preset time, the water return electromagnetic valve 427 is opened, the water in the accumulator 413 flows back to the water tank 3 through the water return pipe 414 until the value of the high pressure sensor 432 returns to zero, the water return electromagnetic valve 427 is closed, a test round is completed, and a plurality of the test rounds are repeated until the value of the high pressure sensor decreases to a preset value, and then the check valve 421 on the test pipe is determined to fail, and the test on the test pipe is completed.
As shown in fig. 3, in an alternative embodiment of the present utility model, a first upright 51 is disposed between the first test pipeline 42 and the second test pipeline 43 on the base 5, and a second upright 52 is disposed between the third test pipeline 44 and the fourth test pipeline 45; the first upright 51 and the second upright 52 support the test line, making the device more stable.
The specific working process of the secondary water supply check valve test system provided by the utility model is as follows:
after the check valve 421 to be detected is installed in place, water is stored in the water tank 3 until the preset liquid level is reached, and air in each test pipeline is discharged.
By the control system 1, the water supply unit 2 is opened, and three electromagnetic valves (namely a water inlet electromagnetic valve, a pressure relief electromagnetic valve and a water return electromagnetic valve) on each test tube are disconnected.
The water inlet solenoid valve 422 is opened and high pressure water passes through the check valve 421 to be detected and enters the accumulator 413, and at the same time, the high pressure sensor 432 is increased in value until reaching a preset pressure.
After the water inlet electromagnetic valve 422 is completely closed, the pressure relief electromagnetic valve 423 is opened, the water pressure at the front end of the check valve 421 is relieved, and the value of the low pressure sensor 431 is observed until the valve is reset to zero.
During the preset time, it is observed whether the high pressure sensor 432 has a pressure drop. If no pressure drop occurs, the return water solenoid valve 427 is opened until the high pressure sensor 432 is zeroed, and the return water solenoid valve 427 and the pressure relief solenoid valve 423 are closed. The cycle test is then continued until either the predetermined number of fatigue life or the check valve 421 fails (sealing performance after check valve fatigue is not satisfactory).
If the pressure drop of the high-pressure sensor 432 reaches the preset judging requirement within the preset time, the check valve is judged to be invalid, three electromagnetic valves (namely a water inlet electromagnetic valve, a pressure relief electromagnetic valve and a water return electromagnetic valve) of the branch are closed, and the test of the check valve of the branch is completed.
Finally, the fatigue life of each branch check valve is counted and recorded, and the check valve fatigue life test is completed.
Through the embodiment, the fatigue test requirements of various check valves can be met; the fatigue test can be accelerated by setting a preset working frequency (namely test times) through a control system; meets the requirement of automatic test. After the start-up setting is completed, the check valve fatigue test is automatically completed, and the fatigue life and the leakage pressure reduction value are recorded. And the check valve with fatigue failure automatically stops testing.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. A secondary water check valve test system, comprising:
a base (5);
the water supply unit (2), the water tank (3) and the test branch (4) are fixed on the base (5);
the water supply unit (2) is connected with the water tank (3) through a first pipeline and is connected with the test branch (4) through a second pipeline;
and the control system (1) is electrically connected with the test branch circuit (4), and the control system (1) tests the check valve (421) on the test branch circuit (4) according to the water pressure in the check valve (421) on the test branch circuit (4).
2. The secondary water supply check valve test system according to claim 1, wherein the test branch (4) comprises:
a water storage main pipe (41), wherein the water storage main pipe (41) is connected with a second pipeline of the water supply unit (2), and water in the water tank (3) enters the water supply unit (2) through a first pipeline and enters the water storage main pipe (41) through the second pipeline;
at least one test pipeline connected with the water storage main pipe (41), wherein the control system (1) tests the check valve (421) according to the water pressure on the at least one test pipeline.
3. The secondary water check valve test system of claim 2, wherein the at least one test line comprises: a first test line (42), a second test line (43), a third test line (44) and a fourth test line (45);
the control system (1) tests the check valve (421) according to the water pressure on the first test line (42), the second test line (43), the third test line (44) and the fourth test line (45).
4. A secondary water supply check valve test system according to claim 3, wherein the first test line (42), the second test line (43), the third test line (44) and the fourth test line (45) each comprise:
the water storage main pipe (41) is connected with the water inlet pipeline (411), and a check valve (421) is arranged on the water inlet pipeline (411);
the pressure release pipeline (412), one end of the pressure release pipeline (412) is connected with the water tank (3), and the other end is connected with the water inlet pipeline (411);
the energy accumulator (413) is connected with the other end of the water inlet pipeline (411) and is connected with the water tank (3) through a water return pipeline (414).
5. The secondary water supply check valve test system according to claim 4, wherein the water inlet pipe (411) is further provided with a water inlet solenoid valve (422).
6. The secondary water supply check valve test system according to claim 4, wherein a pressure relief solenoid valve (423) is installed on the pressure relief pipeline (412), the pressure relief pipeline (412) is connected with the water inlet pipeline (411) through a four-way valve (424), and the check valve (421) is located between the four-way valve (424) and the accumulator (413).
7. The secondary water supply check valve test system according to claim 6, wherein the accumulator (413) is connected to the other end of the water intake pipe (411) through a hose (425), and the check valve (421) is located between the four-way valve (424) and the hose (425).
8. The system of claim 6, wherein the four-way valve (424) is connected to a low pressure sensor (431) through a first three-way valve (426) in a line extending from the valve.
9. The secondary water supply check valve test system of claim 4, wherein a return water solenoid valve (427) is mounted on the return water line (414).
10. The secondary water supply check valve test system according to claim 9, wherein a high pressure sensor (432) is connected to the pipe between the accumulator (413) and the connection end of the water return pipe (414) through a second three-way valve (428), and the control system (1) tests the check valve (421) according to the pressure value of the high pressure sensor (432).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223227689.0U CN219161615U (en) | 2022-12-02 | 2022-12-02 | Secondary water supply check valve test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223227689.0U CN219161615U (en) | 2022-12-02 | 2022-12-02 | Secondary water supply check valve test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219161615U true CN219161615U (en) | 2023-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223227689.0U Active CN219161615U (en) | 2022-12-02 | 2022-12-02 | Secondary water supply check valve test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219161615U (en) |
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2022
- 2022-12-02 CN CN202223227689.0U patent/CN219161615U/en active Active
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