Sealing performance detection device and sealing performance detection system for gas water seal equipment

Abstract

The utility model discloses a leakproofness detection device and leakproofness detection system for gas water seal equipment, comprising a main pipe, a first on-off valve, a branch pipe, a second on-off valve and a pipeline pressure monitoring alarm, one end of the main pipe is an inlet end used for connecting test gas, and the other end of the main pipe is connected with a flange plate; the flange plate is used for being connected with a flange of a pressurizing opening of gas water seal equipment, the first on-off valve is installed in the main pipe, one end of the branch pipe is connected with the main pipe and communicated between the flange plate and the first on-off valve, the second on-off valve is installed on the branch pipe, and the pipeline pressure monitoring alarm is connected with the other end of the branch pipe. The pipeline pressure monitoring alarm is used for giving an alarm when the gas water seal equipment is in a pressure maintaining stage and the air pressure in the branch pipe is reduced. With the adoption of the scheme, an operator only needs to control the on-off of related valves to complete the periodic pressurizing inspection of the gas water seal equipment, the operation method is simple, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gas water seals, in particular to a sealing detection device and a sealing detection system for coal gas water seal equipment. Background Art

[0002] The gas water seal equipment is a device that can discharge the liquid in the gas pipeline and seal the gas in the gas pipeline to prevent leakage. The sealing performance of the gas water seal equipment is crucial to ensure the sealing performance of the gas pipeline. The gas water seal equipment needs to be periodically pressure-tested.

[0003] CN217442799U discloses a gas water seal drainer pressure detection device. In the specific detection method using the device, it involves the water seal pressure resistance detection in step 4, the water leakage detection in step 5 and the gas leakage detection in step 6. It needs to be pressurized multiple times and the operator needs to pay attention to the pressure gauge at all times, which makes the detection method more complicated and urgently needs to be improved. Utility Model Content

[0004] The present application provides a sealing detection device and a sealing detection system for gas water seal equipment, which solves the technical problem of numerous detection steps in the prior art when detecting gas water seals.

[0005] The present application provides a sealing detection device for gas water seal equipment, including a main pipe, a first on-off valve, a branch pipe, a second on-off valve and a pipeline pressure monitoring alarm, one end of the main pipe is an inlet end for connecting to the test gas, the other end of the main pipe is connected to a flange, the flange is used to be connected to the flange of the pressure port of the gas water seal equipment, the first on-off valve is installed in the main pipe, one end of the branch pipe is connected to the main pipe, and is connected between the flange and the first on-off valve, the second on-off valve is installed in the branch pipe, the pipeline pressure monitoring alarm is connected to the other end of the branch pipe, and the pipeline pressure monitoring alarm is used to alarm when the gas water seal equipment is in the pressure maintaining stage and the gas pressure in the branch pipe decreases.

[0006] In some embodiments, the sealing detection device further includes a pressure regulating valve, which is installed in the main pipe and located between the branch pipe and the inlet end.

[0007] In some embodiments, the sealing detection device further includes a pressure relief valve, and the pressure relief valve is connected to the main pipe between the flange and the first on-off valve.

[0008] In some embodiments, the main pipe is a stainless steel pipe.

[0009] In some embodiments, the branch pipes are stainless steel pipes.

[0010] In some embodiments, the sealing detection device further comprises a rubber tube, which is connected to the inlet end of the main pipe and is used to be connected to a test gas delivery pipeline.

[0011] In some embodiments, the test gas includes nitrogen.

[0012] In some embodiments, both the first on-off valve and the second on-off valve are manual valves.

[0013] In some embodiments, the pipeline pressure monitoring alarm includes a pressure detector, a processor, and an alarm. The processor is electrically connected to both the pressure detector and the alarm. The pressure regulating valve is an electrically controlled valve, and the electrically controlled valve is electrically connected to the processor.

[0014] A sealing performance detection system includes a gas source and the above-mentioned sealing performance detection device. The inlet end of the sealing performance detection device is connected to the gas source, and the flange of the sealing performance detection device is used to be connected to the flange of the pressure test port of the gas-water seal equipment.

[0015] The beneficial effects of this application are as follows: A sealing performance detection device for gas-water seal equipment is provided, which includes a main pipe, a first on-off valve, a branch pipe, a second on-off valve, and a pipeline pressure monitoring alarm. Under the condition of opening the first on-off valve and the second on-off valve, the gas-water seal equipment is pressurized. After pressurization, the first on-off valve is closed and the second on-off valve remains open, enabling the gas-water seal equipment to enter the pressure holding stage. If the air pressure decreases during the pressure holding stage, the pipeline pressure monitoring alarm will send an alarm signal, indicating that the sealing performance of the gas-water seal equipment is not complete; adopting this solution, the operator only needs to control the opening and closing of the relevant valves to complete the periodic pressure test inspection of the gas-water seal equipment. The operation method is simple and the detection efficiency is improved. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention.

[0017] Figure 1 It is a schematic diagram of the sealing performance detection device for gas-water seal equipment provided by this application.

[0018] Reference numerals in the drawings: 100 - main pipe, 110 - inlet end, 120 - flange, 200 - first on-off valve, 300 - branch pipe, 400 - second on-off valve, 500 - pipeline pressure monitoring alarm, 600 - pressure regulating valve, 700 - pressure relief valve. Detailed Embodiments

[0019] CN217442799U discloses a pressure testing and detecting device for a gas water seal type drainer. In the specific detecting method using this device, it involves the water seal pressure resistance detection in step 4, the water leakage detection in step 5, and the air leakage detection in step 6. In step 5, it is necessary to check whether water leaks from the body of the gas water seal type drainer to reflect whether there is a water leakage phenomenon in the gas water seal type drainer. In step 6, it is necessary to install an air leakage detecting device at the drain outlet of the gas water seal type drainer to detect whether there is an air leakage phenomenon at the drain outlet, so as to reflect whether there is an air leakage phenomenon in the gas water seal type drainer.

[0020] In the detecting method disclosed in CN217442799U, it involves multiple pressurizations. The detecting method involves pressure resistance detection, water leakage detection, and air leakage detection. The operator needs to constantly pay attention to the pressure gauge, and the detecting method is relatively complex and urgently needs improvement.

[0021] To solve the above problems, the present application provides a sealing detecting device for a gas water seal device. Please refer to Figure 1 , which includes a main pipe 100, a first on-off valve 200, a branch pipe 300, a second on-off valve 400, and a pipeline pressure monitoring alarm 500. One end of the main pipe 100 is an inlet end 110 for connecting test gas. The test gas can be nitrogen or compressed air. The other end of the main pipe 100 is connected to a flange 120, and the flange 120 is flange-connected to the pressure testing port of the gas water seal device. The test gas enters the gas water seal device from the pressure testing port.

[0022] As Figure 1 shown, the first on-off valve 200 is installed in the main pipe 100 to control the on-off of the main pipe 100. One end of the branch pipe 300 is connected to the main pipe 100 and communicates between the flange 120 and the first on-off valve 200. The second on-off valve 400 is installed in the branch pipe 300, and the pipeline pressure monitoring alarm 500 is connected to the other end of the branch pipe 300. The on-off of the branch pipe 300 is controlled by the second on-off valve 400. When the second on-off valve 400 is opened, the pipeline pressure monitoring alarm 500 can smoothly monitor the air pressure conditions of the main pipe 100 and the gas water seal device. The pipeline pressure monitoring alarm includes a pressure detector, a processor, and an alarm. The processor is electrically connected to both the pressure detector and the alarm. The pipeline pressure monitoring alarm 500 has a monitoring pressure and emits an alarm signal when the pressure value decreases.

[0023] In specific applications, the sealing detection device of the present disclosure is connected between the gas water seal device and the gas source. Specifically, the inlet end 110 is connected to the gas source, and the flange 120 is connected to the pressure test port flange of the gas water seal device. First, the switch of the gas source needs to be opened, the first on-off valve 200 and the second on-off valve 400 are opened, and the gas water seal device is pressurized smoothly. After the pressurization is completed, the first on-off valve 200 is closed and the second on-off valve 400 is kept open, so that the gas water seal device enters the pressure holding stage. The pipeline pressure monitoring alarm 500 monitors the air pressure. During the detection, the pressure holding stage lasts for a period of time. During this period, when the air pressure decreases, the pipeline pressure monitoring alarm 500 will send an alarm signal, indicating that the sealing of the gas water seal device is not complete enough; when the air pressure remains unchanged, it indicates that the sealing of the gas water seal device is complete enough. Thus, the sealing detection of the gas water seal device is completed.

[0024] Adopting the solution of the present disclosure, the operator only needs to control the on-off of the relevant valves to complete the periodic pressure test inspection of the gas water seal device. The operation method is simple and the detection efficiency is improved.

[0025] In some embodiments, please refer to Figure 1 , the sealing detection device further includes a pressure regulating valve 600. The pressure regulating valve 600 is installed in the main pipe 100, and the pressure regulating valve 600 is located between the branch pipe 300 and the inlet end 110. During pressurization, the gas pressure entering the gas water seal device is changed through the pressure regulating valve 600, and it is necessary to control the air pressure in the pressure holding stage to be less than the design pressure of the gas water seal device.

[0026] In some embodiments, the pipeline pressure monitoring alarm includes a pressure detector, a processor and an alarm. The processor is electrically connected to both the pressure detector and the alarm. The pressure regulating valve is an electrically controlled valve, and the electrically controlled valve is electrically connected to the processor. By designing the pressure regulating valve as an electrically controlled valve and controlling the pressure regulating valve through the processor of the pipeline pressure monitoring alarm, the automation degree of the device is improved. Compared with the manual valve, the electrically controlled valve has better safety and stability.

[0027] In the sealing detection device of the present disclosure, the first on-off valve 200 can be a manual valve, and the second on-off valve 400 can be a manual valve for on-site manual operation.

[0028] In some embodiments, the air pressure in the pressure holding stage is controlled by the pressure regulating valve 600 to be less than the minimum design pressure of the gas water seal device. For example, the design pressures of multiple gas water seal devices on site are different, some are 0.3 kg, some are 0.5 kg, and some are 0.2 kg. Then, the air pressure in the pressure holding stage is controlled by the pressure regulating valve 600 to be 0.2 kg or below 0.2 kg. The air pressure unit "kg" in this paragraph is kg / cm².

[0029] In some embodiments, please refer toFigure 1 The sealing performance detection device further includes a pressure relief valve 700, which is connected to the main pipe 100 between the flange 120 and the first on-off valve 200. After the sealing performance of the gas water seal device is detected, the pressure relief valve 700 is opened to relieve the pressure. After the pressure relief is completed, the sealing performance detection device of the present disclosure is disassembled to prepare for the sealing performance detection of the next gas water seal device.

[0030] In the sealing performance detection device of the present disclosure, the main pipe 100 can be a stainless steel pipe, and the branch pipe 300 can be a stainless steel pipe.

[0031] In some embodiments, the sealing performance detection device further includes a rubber hose, which is connected to the inlet end 110 of the main pipe 100 and is connected to the test gas transmission pipeline through the rubber hose, facilitating on-site layout.

[0032] This embodiment also discloses a sealing performance detection system, which includes a gas source and the above-mentioned sealing performance detection device. The inlet end 110 of the sealing performance detection device is connected to the gas source, and the flange 120 of the sealing performance detection device is used to be connected to the flange of the pressure test port of the gas water seal device. The periodic pressure test of the gas water seal device is realized by using this system.

[0033] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A sealing detection device for gas water seal equipment, characterized in that: The sealing detection device comprises: A main pipe, one end of which is an inlet end for receiving the test gas, and the other end is connected to a flange plate, and the flange plate is used to be connected to the flange of the pressure port of the gas water seal device; A first on-off valve installed in the main pipe; A branch pipe, one end of which is connected to the main pipe and communicated between the flange and the first on-off valve; A second on-off valve installed on the branch pipe; and A pipeline pressure monitoring alarm is connected to the other end of the branch pipe. The pipeline pressure monitoring alarm is used to alarm when the gas water seal equipment is in the pressure maintaining stage and the gas pressure in the branch pipe decreases.

2. The sealing detection device according to claim 1, characterized in that: The sealing detection device also includes: A pressure regulating valve is installed in the main pipe, and the pressure regulating valve is located between the branch pipe and the inlet end.

3. The sealing detection device according to claim 1, characterized in that: The sealing detection device also includes: A pressure relief valve is connected to the main pipe between the flange and the first on-off valve.

4. The sealing detection device according to claim 1, characterized in that: The main pipe is a stainless steel pipe.

5. The sealing detection device according to claim 1, characterized in that: The branch pipe is a stainless steel pipe.

6. The sealing detection device according to claim 4, characterized in that: The sealing detection device also includes: A rubber tube is connected to the inlet end of the main pipe, and the rubber tube is used to be connected to a test gas delivery pipeline.

7. The sealing detection device according to claim 1, characterized in that: The test gas includes nitrogen.

8. The sealing detection device according to claim 1, characterized in that: The first on-off valve and the second on-off valve are both manual valves.

9. The sealing detection device according to claim 2, characterized in that: The pipeline pressure monitoring alarm includes a pressure detector, a processor and an alarm. The processor is electrically connected to the pressure detector and the alarm. The pressure regulating valve is an electrically controlled valve, and the electrically controlled valve is electrically connected to the processor.

10. A sealing detection system, characterized in that: include: Gas source; According to any one of claims 1 to 9, the inlet end of the sealing detection device is connected to the gas source, and the flange of the sealing detection device is used to be connected to the flange of the pressure port of the gas water seal equipment.

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