Platform for testing water hammer device

Abstract

The utility model belongs to the field of household waterproof hammer device performance test, and discloses a platform for testing a water hammer device, which comprises a platform device protection part, a test area part and a water circulation part which are connected in sequence, the platform device protection part comprises a variable-frequency booster pump, a pressure gauge, a flow regulator, a first electronic flowmeter, an absorbing device and an electromagnetic valve which are sequentially connected, the water inlet end A of the platform is connected with the variable-frequency booster pump, the test area part comprises a to-be-tested area, the to-be-tested area comprises a front pipeline and a rear pipeline, and the two pipelines adopt movable joints. The water circulation part comprises a water storage tank and a water inlet tank, the bottom of the water inlet end A is connected to the water storage tank, the output end of the test area part is connected to the input end of the bottom of the water storage tank, and the input end of the water storage tank is connected with the water inlet tank. According to the utility model, the reliability of the water hammer prevention device is ensured, and the damage of the water hammer effect to the pipeline is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of performance testing of household water hammer protection devices, in particular to a platform for testing water hammer devices. Background Art

[0002] The water hammer effect refers to the sudden change in water flow rate in a pressurized pipeline due to some external reasons (such as sudden closing of a valve or sudden stop of a pump unit), causing water hammer. This hydraulic phenomenon is called water hammer.

[0003] The generation of water hammer poses certain hazards to pipelines, and the air pressure in the pipeline needs to be discharged. Therefore, it is necessary to install an anti-water hammer device. The performance of the anti-water hammer device directly affects the probability of water hammer occurrence. Therefore, it is very necessary to verify the size of the pressure generated when water hammer occurs and how much pressure is absorbed by the anti-water hammer pipe fittings. However, there is currently a lack of a device for performance testing of anti-water hammer devices. Utility Model Content

[0004] The utility model aims to provide a platform for testing a water hammer device to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, a specific technical solution of a water hammer device testing platform of the utility model is as follows:

[0006] A platform for testing a water hammer device comprises a platform device protection part, a test area part and a water circulation part, wherein the platform device protection part, the test area part and the water circulation part are connected in sequence, the platform device protection part comprises a variable frequency booster pump, a pressure gauge, a flow regulator, an electronic flow meter, an absorber and a solenoid valve which are connected in sequence, a water inlet end A of the platform is connected to the variable frequency booster pump, the test area part comprises a test area, the test area comprises two sections of pipelines, the two sections of pipelines adopt flexible joints, pressure monitoring systems are installed at both ends of the test area, the water circulation part comprises a water storage tank and a water inlet tank, the bottom of the water inlet end A is connected to the water storage tank, the output end of the test area part is connected to the input end at the bottom of the water storage tank, and the input end of the water storage tank is connected to the water inlet tank.

[0007] Furthermore, the pressure monitoring system includes electronic pressure sensor 1, electronic pressure sensor 2 and an integrated display, wherein the electronic pressure sensor 1 and the electronic pressure sensor 2 are connected to the integrated display, and the integrated display is used to display the pressure measured by the electronic pressure sensor 1 and the electronic pressure sensor 2; the electronic pressure sensor 1 is connected to the solenoid valve of the platform device protection part, and the electronic pressure sensor 2 is connected to the solenoid valve 2 to separate it from the water circulation part; the solenoid valve 2 is connected to the exhaust valve, and the exhaust valve is used to exhaust the gas in the pipeline.

[0008] Furthermore, an electronic flow meter 2 is connected to the rear end of the exhaust valve, and the electronic flow meter 2 is used to detect the flow rate after passing through the water hammer absorber to be tested.

[0009] Furthermore, the water circulation part also includes a bottom valve, the water inlet end A is connected to the bottom valve, the bottom valve extends into the water inlet tank, and the bottom valve is used to open or close the water inlet end A.

[0010] Furthermore, the water storage tank is arranged more than 1 m above the water inlet tank.

[0011] Furthermore, the water storage tank has an input end at the bottom and two output ends at the top or side, and the height difference between the two output ends is more than 1m.

[0012] Furthermore, the water circulation part also includes a stop valve, the output end below the water storage tank is connected to the stop valve, the stop valve is connected to the water inlet tank, and the output end above the water storage tank is connected to the water inlet tank. The stop valve is used to open when the water level in the water storage tank is too high to allow water to flow into the water inlet tank.

[0013] Furthermore, the area to be tested is kept at a distance of more than 2 m from the solenoid valve.

[0014] Furthermore, the water circulation part also includes a bracket, which is supported under the entire platform and is used to support the entire platform and raise the water storage tank.

[0015] Furthermore, the electronic flowmeter 1 and the electronic flowmeter 2 are connected to an integrated display, and the flow value is displayed through the integrated display.

[0016] The utility model provides a platform for testing a water hammer device, which has the following advantages: the utility model provides a platform for testing the performance of a household anti-water hammer device, thereby ensuring the reliability of the anti-water hammer device and avoiding the harm of the water hammer effect to the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a platform for testing a water hammer device according to the utility model;

[0018] Explanation of the markings in the figure: 1. Variable frequency booster pump; 2. Pressure gauge; 3. Flow regulator; 4. Electronic flow meter 1; 5. Absorber; 6. Solenoid valve 1; 7. Electronic pressure sensor 1; 8. Test area; 9. Electronic pressure sensor 2; 10. Solenoid valve 2; 11. Exhaust valve; 12. Electronic flow meter 2; 13. Water storage tank; 14. Stop valve; 15. Bottom valve; 16. Water inlet tank; 17. Bracket. DETAILED DESCRIPTION

[0019] In order to better understand the purpose, structure and function of the utility model, the utility model is described in further detail below in conjunction with the accompanying drawings.

[0020] like Figure 1 As shown, the utility model is a platform for testing a water hammer device, comprising a platform device protection part, a test area part, and a water circulation part, which are connected in sequence.

[0021] The platform device protection part includes a variable frequency booster pump 1, a pressure gauge 2, a flow regulator 3, an electronic flow meter 4, an absorber 5, and a solenoid valve 6. The water inlet end A of the platform is connected to the variable frequency booster pump 1, the variable frequency booster pump 1 is connected to the pressure gauge 2, the pressure gauge 2 is connected to the flow regulator 3, the flow regulator 3 is connected to the electronic flow meter 4, the electronic flow meter 4 is connected to the absorber 5, the absorber 5 is connected to the solenoid valve 6, the variable frequency booster pump 1 is used to draw water from the water inlet end A, the pressure gauge 2 is used to observe the pressure of the water inlet, the electronic flow meter 4 is used to observe the flow rate and velocity of the water inlet, the absorber 5 is used to protect the platform device when the test pressure is too high, and the solenoid valve 6 is used to separate the platform device protection part and the test area part.

[0022] The test area includes a test area 8, which includes two sections of pipelines, front and back. The two sections of pipelines use flexible joints. Pressure monitoring systems are installed at both ends of the test area 8. The pressure monitoring system includes an electronic pressure sensor 17, an electronic pressure sensor 29 and an integrated display. The electronic pressure sensor 17 and the electronic pressure sensor 29 are connected to the integrated display. The integrated display is used to display the pressure measured by the electronic pressure sensor 17 and the electronic pressure sensor 29. The electronic pressure sensor 17 is connected to the solenoid valve 16 of the platform device protection part, and the electronic pressure sensor 29 is connected to the solenoid valve 210 to separate it from the water circulation part. The solenoid valve 210 is connected to the exhaust valve 11, and the exhaust valve 11 is used to exhaust the gas in the pipeline. In order to analyze the changes in the flow rate after passing through the water hammer absorber to be tested, preferably, an electronic flow meter 212 is added to the rear end of the exhaust valve 11. The electronic flow meter 212 is used to detect the flow rate after passing through the water hammer absorber to be tested.

[0023] The water circulation part includes a water storage tank 13, a stop valve 14, a bottom valve 15, a water inlet tank 16 and a bracket 17. The water inlet end A is connected to the bottom valve 15, and the bottom valve 15 extends into the water inlet tank 16. The bottom valve 15 is used to open or close the water inlet end A. The water storage tank 13 is arranged more than 1m above the water inlet tank 16 to ensure the water circulation of the system. The water storage tank 13 has an input end at the bottom, and two output ends at the top or side. The height difference between the two output ends is more than 1m. The output end of the test area part is connected to the input end at the bottom of the water storage tank 13, and the output end below the water storage tank 13 is connected to the stop valve 14. The stop valve 14 is connected to the water inlet tank 16, and the output end above the water storage tank 13 is connected to the water inlet tank 16. The stop valve 14 is used to open when the water level of the water storage tank 13 is too high, so that water flows into the water inlet tank 16. The variable frequency booster pump 1 draws water from the water inlet tank 16 for testing. After a cycle, the water flows into the water storage tank 13. The water storage tank 13 is raised by more than 1m. When the height of the water storage tank 13 exceeds 1m, the water flows into the water inlet tank 16 through the output end above. The bracket 17 is supported under the entire platform to support the entire platform and raise the water storage tank 13.

[0024] The electronic flow meter 1 4 and the electronic flow meter 2 12 are connected to an integrated display, and the flow value is displayed through the integrated display.

[0025] The utility model mainly utilizes the water hammer effect generated by the instantaneous closing of the electromagnetic valve 6 to test the absorber 5 connected in the PP-R pipeline. The test area 8 should be kept at a distance of more than 2m from the electromagnetic valve 6.

[0026] Testing process:

[0027] 1. First, fill the water inlet tank 16 with water, and open the solenoid valve 1 6 and the solenoid valve 2 10;

[0028] 2. Turn on the variable frequency booster pump 1 to pass water for 1 minute, and open the exhaust valve 11 to exhaust.

[0029] 3. After the exhaust is completed, open the variable frequency booster pump 1 to the maximum, then close the solenoid valve 6 and the variable frequency booster pump 1 and observe the condition of the absorber 5;

[0030] 4. After this test, if the water hammer peak value does not exceed the peak value of the absorber 5, the test piece can be tested;

[0031] 5. Reopen the solenoid valve 6 and the variable frequency booster pump 1, control the inlet pressure of the test, and observe whether the data of the electronic flow meter 4 is stable;

[0032] 6. Open the electronic pressure sensor 1 7 and the electronic pressure sensor 2 9, and after the water is flowing for 30 seconds, close the solenoid valve 2 10 and turn off the variable frequency booster pump 1;

[0033] 7. The integrated display records the highest pressure point of the electronic pressure sensor 17 and the electronic pressure sensor 29, which is considered as one experiment completed;

[0034] 8. When the water level in the water storage tank 13 is too high, the stop valve 14 should be opened to allow water to flow into the water inlet tank 16.

[0035] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A platform for testing a water hammer device, comprising a platform device protection part, a test area part, and a water circulation part, wherein the platform device protection part, the test area part, and the water circulation part are connected in sequence, characterized in that: The platform device protection part comprises a variable frequency booster pump (1), a pressure gauge (2), a flow regulator (3), an electronic flow meter (4), an absorber (5) and a solenoid valve (6) connected in sequence. The water inlet end A of the platform is connected to the variable frequency booster pump (1). The test area part comprises a test area (8). The test area (8) comprises two sections of pipelines, front and rear. The two sections of pipelines use flexible joints. Pressure monitoring systems are installed at both ends of the test area (8). The water circulation part comprises a water storage tank (13) and a water inlet tank (16). The bottom of the water inlet end A is connected to the water storage tank (13). The output end of the test area part is connected to the input end at the bottom of the water storage tank (13). The input end of the water storage tank (13) is connected to the water inlet tank (16).

2. The platform for testing water hammer device according to claim 1, characterized in that: The pressure monitoring system comprises an electronic pressure sensor 1 (7), an electronic pressure sensor 2 (9) and an integrated display, wherein the electronic pressure sensor 1 (7) and the electronic pressure sensor 2 (9) are connected to the integrated display, and the integrated display is used to display the pressures measured by the electronic pressure sensor 1 (7) and the electronic pressure sensor 2 (9); the electronic pressure sensor 1 (7) is connected to an electromagnetic valve 1 (6) of a protection part of a platform device, and the electronic pressure sensor 2 (9) is connected to an electromagnetic valve 2 (10) to separate the platform device from a water circulation part; the electromagnetic valve 2 (10) is connected to an exhaust valve (11), and the exhaust valve (11) is used to exhaust gas in a pipeline.

3. The platform for testing water hammer device according to claim 2, characterized in that: The exhaust valve (11) is connected to a second electronic flow meter (12) at the rear end thereof, and the second electronic flow meter (12) is used to detect the flow rate after passing through the water hammer absorber (5) to be tested.

4. The platform for testing water hammer device according to claim 1, characterized in that: The water circulation part further comprises a bottom valve (15), the water inlet end A is connected to the bottom valve (15), the bottom valve (15) extends into the water inlet tank (16), and the bottom valve (15) is used to open or close the water inlet end A.

5. The platform for testing water hammer device according to claim 1, characterized in that: The water storage tank (13) is arranged more than 1 m above the water inlet tank (16).

6. The platform for testing water hammer device according to claim 1, characterized in that: The water storage tank (13) has an input end at the bottom and two output ends at the top or side, and the height difference between the two output ends is more than 1 m.

7. The platform for testing water hammer device according to claim 6, characterized in that: The water circulation part further comprises a stop valve (14); the output end below the water storage tank (13) is connected to the stop valve (14); the stop valve (14) is connected to a water inlet tank (16); the output end above the water storage tank (13) is connected to the water inlet tank (16); the stop valve (14) is used to open when the water level in the water storage tank (13) is too high, so as to allow water to flow into the water inlet tank (16).

8. The platform for testing water hammer device according to claim 6, characterized in that: The test area (8) is kept at a distance of more than 2 m from the first solenoid valve (6).

9. The platform for testing water hammer device according to claim 6, characterized in that: The water circulation part also includes a bracket (17), which is supported under the entire platform and is used to support the entire platform and raise the water storage tank (13).

10. The platform for testing water hammer device according to claim 3, characterized in that: The electronic flow meter 1 (4) and the electronic flow meter 2 (12) are connected to an integrated display, and the flow value is displayed through the integrated display.

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