Ball float valve testing device

Abstract

The utility model discloses a ball float valve testing device which comprises a support and a base, the support is fixedly installed on the base, a water storage tank is arranged in the base, a plurality of salt wells are arranged on the base, a testing platform is fixed on the support, a valve to be tested is placed on the testing platform, a water inlet pipe is arranged on the base, and a water outlet pipe is arranged on the water inlet pipe. The water inlet pipe is connected with a water inlet of the valve through a hose, a floating ball of the valve is arranged in the salt well, and when the floating ball in the salt well floats until the valve is closed, whether the to-be-detected valve is qualified or not is judged in the mode that whether pipeline pressure is increased or not is detected through a system pipeline sensor. According to the floating ball valve testing device provided by the utility model, through the arrangement of the system pipeline sensor, the salt well, the water inlet pipe and the water storage tank, the switching performance and the sealing performance of the floating ball valve can be simply and effectively tested.

Description

Technical Field

[0001] The utility model relates to a testing device, and more specifically to a float valve testing device. Background Art

[0002] During the production process of float valves, it is ultimately necessary to test the performance of the float balls of the float valves to determine whether the float valve products are qualified.

[0003] Currently, in the prior art, there is a utility model patent with the patent number CN202321014868.8 and the name of an experimental device for the strength of a float valve housing, which discloses the realization of the test for the strength of the float valve housing. However, whether a float valve is qualified not only requires the test of the strength of the float valve housing, but also requires the test of the opening and closing performance and the sealing performance of the float valve. However, there is no device in the current prior art for testing the opening and closing performance and the sealing performance of the float valve. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a float valve testing device for testing the opening and closing performance and the sealing performance of the float valve.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: A float valve testing device includes a bracket and a base. The bracket is fixedly installed on the base. A water storage tank is arranged inside the base. There are several salt wells on the base. A test platform is fixed on the bracket. The valve to be tested is placed on the test platform. An inlet pipe is arranged on the base. The inlet pipe is connected to the water inlet of the valve through a hose. The salt suction port and the water outlet of the valve are both connected to the system pipeline sensor and then connected to a hose, and then the end of the hose is inserted into the salt well. The float ball of the valve is arranged in the salt well. When the float ball in the salt well floats up to close the valve, the system pipeline sensor is used to detect whether the pipeline pressure increases to determine whether the valve to be tested is qualified.

[0006] As a further improvement of the utility model, a water replenishing pipe parallel to the inlet pipe is arranged on the base. An electric valve is connected to the side wall of the water replenishing pipe and then connected to the salt well, which is used to pre-fill water into the salt well before the test.

[0007] As a further improvement of the utility model, the inlet pipe includes a high-pressure inlet pipe and a low-pressure inlet pipe. A high-pressure valve is connected to the side wall of the high-pressure inlet pipe. A low-pressure valve is connected to the side wall of the low-pressure inlet pipe. The water outlets of the high-pressure valve and the low-pressure valve are connected to each other and then connected to the water inlet of the valve.

[0008] As a further improvement of the utility model, the salt well is in a hollow cylindrical shape, the lower end of the salt well is fixed on the base, a drain pipe is connected to a position of the salt well near its lower end, and the drain pipe is connected to a water storage tank after being connected with a drain valve.

[0009] As a further improvement of the utility model, a plurality of water leakage holes are formed in the upper side surface of the base, and the water leakage holes are communicated with the water storage tank in the base.

[0010] As a further improvement of the utility model, a partition net is arranged at the lower end of the salt well, and the interface of the electric valve connected to the water replenishing pipe is connected to a position on the side wall of the salt well between the partition net and the lower end of the salt well.

[0011] The beneficial effects of the utility model are as follows: through the arrangement of the water inlet pipe, the system pipeline sensor and the salt well, the water in the salt well can be effectively utilized to test the floating ball switch performance of the floating ball valve, and at the same time, the sealing performance of the floating ball valve can also be tested. Description of the Drawings

[0012] Figure 1 is the overall structure diagram of the floating ball valve testing device of the utility model;

[0013] Figure 2 is the overall structure diagram of the floating ball valve testing device of the utility model from another perspective;

[0014] Figure 3 is Figure 1 the structural schematic diagram of the salt well in Detailed Embodiment

[0015] The following will further describe the utility model in detail with reference to the embodiments given in the drawings.

[0016] Refer to Figures 1 to 3As shown in the figure, a float valve testing device according to this embodiment is characterized in that it includes a bracket 1 and a base 2. The bracket 1 is fixedly installed on the base 2. A water storage tank is provided inside the base 2. A plurality of salt wells 3 are provided on the base 2. A testing platform 4 is fixed on the bracket 1. The valve to be tested is placed on the testing platform 4. A water inlet pipe 5 is provided on the base 2. The water inlet pipe 5 is connected to the water inlet of the valve through a pipeline. The salt suction port and the water outlet of the valve are both connected to a system pipeline sensor and then connected to a pipeline, and then the end of the pipeline is inserted into the salt well 3. The float of the valve is arranged in the salt well 3. When the float in the salt well 3 floats up to close the valve, the system pipeline sensor is used to detect whether the pipeline pressure increases to determine whether the valve to be tested is qualified. During the process of using the testing device of this embodiment, only the valve to be tested needs to be placed on the testing platform 4, and then an electric actuator is arranged above the valve to drive the valve stem to rotate to realize the position conversion of the valve. In this way, water can be input into the valve through the water inlet pipe 5 and then output to the salt well 3. By gradually raising the liquid level in the salt well 3, the float is raised to the closing position of the valve to be tested. After that, since water is still input through the water inlet pipe 5, if the valve opening and closing performance is qualified, the pipeline pressure should gradually increase. Therefore, by detecting whether the pipeline pressure increases through the system pipeline sensor, it can be simply and effectively realized to determine whether the float switch performance of the valve is qualified.

[0017] As a specific improvement embodiment, a water replenishing pipe 6 parallel to the water inlet pipe 5 is provided on the base 2. The side wall of the water replenishing pipe 6 is connected to an electric valve and then connected to the salt well 3, which is used to pre-fill water into the salt well 3 before testing. Through the setting of the water replenishing pipe 6, it can be effectively realized to pre-fill water into the salt well 3 before testing, so that the float in the salt well 3 can reach the height required to close the valve faster, and further improve the testing efficiency of the float valve.

[0018] As a specific improvement embodiment, the water inlet pipe 5 includes a high-pressure water inlet pipe 51 and a low-pressure water inlet pipe 52. A high-pressure valve 511 is connected to the side wall of the high-pressure water inlet pipe 51, and a low-pressure valve 521 is connected to the side wall of the low-pressure water inlet pipe 52. The water outlets of the high-pressure valve 511 and the low-pressure valve 521 are connected to each other and then connected to the water inlet of the valve. Through the setting of the above structure, the high-pressure water flow test and the low-pressure water flow test of the float valve are effectively realized.

[0019] As a specific improvement embodiment, the salt well 3 is in a hollow cylindrical shape. The lower end of the salt well 3 is fixed on the base 2. A drain pipe 7 is connected to the position of the salt well 3 near its lower end. The drain pipe 7 is connected to a drain valve 8 and then connected to the water storage tank. Through the setting of the above structure, it can be effectively realized to provide a cylindrical salt well 3 for testing.

[0020] As a specific implementation of the improvement, a plurality of water leakage holes 21 are provided on the upper side surface of the base 2, and the water leakage holes 21 are communicated with the water storage tank inside the base 2. Through the arrangement of the water leakage holes 21, the water overflowing from the upper end of the salt well 3 can be effectively collected, reducing the waste of water resources.

[0021] As a specific implementation of the improvement, a partition net 31 is provided at the lower end of the salt well 3, and the interface of the electric valve connected to the water supply pipe 6 is connected to a position on the side wall of the salt well 3 between the partition net 31 and the lower end of the salt well 3. Through the arrangement of the partition net 31, a blocking effect on the water flow replenished into the salt well 3 can be achieved, so as to avoid the problem of overflowing from the top of the salt well 3 when replenishing water due to too strong replenishing water flow.

[0022] The test process using the test device of this embodiment is as follows:

[0023] 1. Manually place the product on the test platform 4, then connect it to the device through a pipeline, and place the float ball in the test salt well 3

[0024] 2. Manually press the start button, the device starts to run, the fast water replenishing solenoid valve opens, and the water level in the salt well 3 is quickly replenished to the specified position through the water supply pipe 6 and then the solenoid valve closes.

[0025] 3. The high-pressure valve 511 on the high-pressure water inlet pipe 51 opens, the high-pressure water pump starts, the water flow enters the valve body through the high-pressure pipeline, enters the water replenishing station through the internal structure of the valve body, the water flow enters the float ball valve through the water replenishing station, and then enters the salt well 3 through the float ball valve, driving the float ball to float. When it floats to a certain position, the float ball valve closes. At this time, water cannot continue to enter the salt well 3, and at the same time, water will continue to replenish into the water supply pipeline, resulting in an increase in the pressure in the pipeline. At this time, the system pipeline sensor detects the increase in pressure. When it rises to the set value, the system will automatically judge that the product is qualified; if it exceeds the set time value, the system pressure has no high pressure all the time, or when the water level in the salt well 3 reaches the warning position, the product will be alarmed as unqualified.

[0026] 4. After the system makes a qualified judgment, the valve body is driven by the servo motor to rotate to the salt suction station, and negative pressure is generated through the internal structure of the valve body through the pipeline. The water in the salt well 3 is sucked out through the float ball valve pipeline and discharged into the return water pipeline. When the water level in the salt well 3 is sucked out to the lowest water level of the float ball valve, the float ball valve will automatically close. At this time, a vacuum will be formed in the pipeline. At this time, the system pipeline sensor will detect the increase in the negative pressure value. When it rises to the set value, the system will automatically judge that the product is qualified; if the system does not detect negative pressure all the time within the set time, the device will alarm and judge that the product is unqualified.

[0027] 5. After the system makes an unqualified judgment, the high-pressure valve 511 closes, and the drain valve at the bottom of the salt well 3 opens.

[0028] 6. If all of the above tests are qualified, the system will automatically start the low-pressure water pump and repeat steps 3 - 5.

[0029] 7. If all of the above steps pass the test, the product is qualified.

[0030] All tests are automatically controlled and carried out by the equipment, and the judgment is automatic.

[0031] In summary, for the float valve testing device of this embodiment, through the coordinated setting of the water inlet pipe 5, the system pipeline sensor, and the salt well 3, the opening and closing performance and the sealing performance of the float valve can be effectively tested.

[0032] The above description is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A float valve testing device, characterized in that: It includes a bracket (1) and a base (2). The bracket (1) is fixedly installed on the base (2). A water storage tank is provided inside the base (2). A number of salt wells (3) are provided on the base (2). A test platform (4) is fixed on the bracket (1). The valve to be tested is placed on the test platform (4). A water inlet pipe (5) is provided on the base (2). The water inlet pipe (5) is connected to the water inlet of the valve through a pipeline. The salt suction port and the water outlet of the valve are both connected to the system pipeline sensor and then connected to a pipeline, and then the end of the pipeline is inserted into the salt well (3). The float ball of the valve is arranged in the salt well (3) to judge whether the valve to be tested is qualified by detecting whether the pipeline pressure increases by the system pipeline sensor when the float ball floats in the salt well (3) until the valve closes.

2. The float valve testing device according to claim 1, characterized in that: A water replenishing pipe (6) parallel to the water inlet pipe (5) is provided on the base (2). The side wall of the water replenishing pipe (6) is connected to an electric valve and then connected to the salt well (3) for pre-supplying water to the salt well (3) before the test.

3. The float valve testing device according to claim 1 or 2, characterized in that: The water inlet pipe (5) includes a high-pressure water inlet pipe (51) and a low-pressure water inlet pipe (52). A high-pressure valve (511) is connected to the side wall of the high-pressure water inlet pipe (51). A low-pressure valve (521) is connected to the side wall of the low-pressure water inlet pipe (52). The water outlets of the high-pressure valve (511) and the low-pressure valve (521) are connected to each other and then connected to the water inlet of the valve.

4. The float valve testing device according to claim 2, wherein: The salt well (3) is in a hollow cylindrical shape. The lower end of the salt well (3) is fixed on the base (2). A drain pipe (7) is connected to the position of the salt well (3) near its lower end. The drain pipe (7) is connected to a drain valve (8) and then connected to the water storage tank.

5. The float valve test device according to claim 1 or 2, characterized in that: A number of water leakage holes (21) are provided on the upper side surface of the base (2). The water leakage holes (21) are communicated with the water storage tank inside the base (2).

6. The float valve testing device according to claim 4, wherein: A partition net (31) is provided at the lower end of the salt well (3). The interface of the electric valve connected to the water replenishing pipe (6) is connected to the side wall of the salt well (3) at a position between the partition net (31) and the lower end of the salt well (3).

Images