Automatic plug forming valve and application thereof in ash conveying system

Abstract

The invention relates to the technical field of power equipment, provides an automatic plug forming valve and application of the automatic plug forming valve in an ash conveying system, and aims to solve the problems that an automatic plug forming valve is difficult in fault recognition and low in efficiency. The automatic plug forming valve comprises a main body, an inner cavity, a cushion block, a spring, an air inlet, a valve cover, a first channel, a second channel and other components; the external pipeline is connected with an air supply pipeline through a connecting pipe, is connected with an ash conveying pipeline and is provided with a check valve. In addition, a pressure gauge is installed to monitor the pressure of the channel. The method has the beneficial effects that through detailed structural design and troubleshooting steps, a fault point can be more accurately positioned, and the efficiency and accuracy of fault identification are improved. In the ash conveying system, the automatic plug forming valve can automatically control the valve to be opened and closed according to the pressure change in the ash conveying pipeline, and the purpose of removing blocked dust is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tire detection, and in particular to an automatic thrombus-forming valve and an application thereof in an ash conveying system. Background Art

[0002] The automatic bolting valve does play an important role in the ash conveying system. The automatic bolting valve is a key component that controls the fluid flow of the system. The automatic bolting valve can automatically open or close according to the needs, so as to ensure the normal operation of the ash conveying system. In industrial environments such as thermal power plants, the stability and efficiency of the ash conveying system are crucial to the overall operation, and the reliability and accuracy of the automatic bolting valve are the key factors to achieve this goal. Therefore, the role of the automatic bolting valve in the ash conveying system cannot be ignored. The automatic bolting valve is an important part of ensuring the stable and efficient operation of the system.

[0003] The working principle of the existing automatic bolting valve includes that when the gas in the accompanying gas pipeline enters the automatic bolting valve and the ash conveying pipeline is blocked or the pressure reaches 0.2-0.25MPa, the valve will automatically open. Because the automatic bolting valve is provided with damping exhaust holes inside, trace gas will enter the ash conveying pipeline through these holes. When the pressure increases to the set value, the gas discharged from the damping hole will enter the piston cavity through a specific channel, pushing the piston to open the valve. After the valve is opened, the gas in the accompanying gas pipe enters the air inlet of the automatic bolting valve through the connecting pipe and enters the ash conveying pipeline. In this way, the gas can remove the dust blocked in the pipeline. When the pressure in the ash conveying pipeline drops below the set value, the automatic bolting valve will automatically close. This is because the piston will return to its position, and the pad will also return to its position, thereby closing the valve. The state of the automatic bolting valve can be judged by observing the pressure gauge. When the pressure reaches the set value, the valve will open; when the pressure drops below the set value, the valve will close. The pressure gauge provides a visual indication of the working state of the valve. In summary, the working principle of the existing automatic plug valve is to allow the gas in the accompanying air pipeline to enter the valve, and automatically control the opening and closing of the valve according to the pressure changes in the ash conveying pipeline to achieve the purpose of clearing the blocked dust.

[0004] The existing automatic bolt-forming valve has the following technical pain points. During the fault identification process, only limited fault information is often available, such as abnormal pressure gauge indication, valve failure to open or close, etc., to judge the fault of the automatic bolt-forming valve. The internal structure of the automatic bolt-forming valve is complex. The automatic bolt-forming valve contains multiple components and connection points. When a fault occurs, it is often difficult to accurately locate the fault point, resulting in a time-consuming and inefficient fault identification process. In order to improve the accuracy of fault identification of the automatic bolt-forming valve, the present invention provides an automatic bolt-forming valve and its application in an ash conveying system. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic plug-forming valve and its application in an ash conveying system to solve the problem that when a fault occurs, it is often difficult to accurately locate the fault point, resulting in a time-consuming and inefficient fault identification process.

[0006] In a first aspect, the present invention provides an automatic thrombosis valve, comprising: an automatic thrombosis valve body;

[0007] An inner cavity is installed inside the main body of the automatic bolt forming valve, and a cushion block and a spring are installed in the inner cavity;

[0008] An air inlet of the automatic bolt-forming valve is installed on one side of the main body of the automatic bolt-forming valve, and a valve cover is installed on the other side of the main body of the automatic bolt-forming valve.

[0009] A first channel 9 and a second channel 10 are also installed inside the main body of the automatic bolt-forming valve. The first channel 9 is connected to the second channel 10, and the second channel 10 is communicated with the inner cavity.

[0010] The outer wall of the automatic bolt-forming valve body is provided with an automatic bolt-forming valve air inlet 11, and a connecting pipe 14 is installed at the automatic bolt-forming valve air inlet 11. The inlet end of the connecting pipe 14 is connected to the automatic bolt-forming valve air inlet 11, and the outlet end of the automatic bolt-forming valve air inlet 11 is connected to the air supply pipeline;

[0011] An external pipeline is installed on the side wall of the automatic bolt forming valve body, a check valve is installed on the inlet end of the external pipeline, a check valve glass ball 12 and a check valve spring 13 are installed inside the check valve, and the inlet and outlet ends of the external pipeline are connected to the ash conveying pipeline.

[0012] The automatic bolt-forming valve as described in claim 1 is characterized in that a first control valve is installed at the connection between the connecting pipe 14 and the air supply pipeline.

[0013] Furthermore, in the automatic bolt-forming valve provided by the present invention, a second control valve is installed at the connection between the external pipeline and the ash conveying pipeline.

[0014] Furthermore, in the automatic thrombus-forming valve provided by the present invention, a pressure gauge 3 is installed on the outer wall of the automatic thrombus-forming valve body, the pressure gauge 3 is connected to the first channel 9, and the pressure gauge 3 is used to detect the pressure of the first channel 9.

[0015] Furthermore, in the automatic thrombus-forming valve provided by the present invention, a pressure gauge 3 is installed on the outer wall of the automatic thrombus-forming valve body, the pressure gauge 3 is connected to the second channel 10, and the pressure gauge 3 is used to detect the pressure of the second channel 10.

[0016] Furthermore, in the automatic bolt-forming valve provided by the present invention, the pressure gauge 3 includes a first pressure gauge and a second pressure gauge, and the first pressure gauge and the second pressure gauge are installed on the outer wall of the automatic bolt-forming valve body, the first pressure gauge is connected to the first channel 9, and the first pressure gauge is used to detect the pressure of the first channel 9, and the second pressure gauge is connected to the second channel 10, and the second pressure gauge is used to detect the pressure of the second channel 10.

[0017] In a second aspect, an automatic thrombus-forming valve and its application in an ash conveying system, applied to the automatic thrombus-forming valve, comprising:

[0018] Install the automatic bolt-forming valve in the ash conveying system, and check the connection status of each component of the automatic bolt-forming valve, including the connection between the connecting pipe and the external pipeline, and the installation position of the check valve and the spring;

[0019] After the automatic bolt valve is installed in the ash conveying system, the ash conveying system should be checked to see if the pressure gauge is accurate, whether the control valve switch is flexible, and whether the check valve is working properly;

[0020] Start the ash conveying system, monitor the channel pressure through the pressure gauge, and monitor the working status of the automatic plug valve;

[0021] If the automatic plug valve fails, such as failing to open or often opening and not closing, troubleshooting should be carried out. The troubleshooting method includes checking whether the pressure gauge is damaged, whether the air inlet is unobstructed, and whether there is dust inside the check valve.

[0022] The specific steps for troubleshooting the automatic plug valve and its use in the ash conveying system are as follows:

[0023] Automatic plugging valve and its troubleshooting steps in ash conveying system;

[0024] Preliminary inspection to confirm the status of the gas pipeline: Make sure there is sufficient gas supply in the gas pipeline.

[0025] Observe the pressure gauge: Check the pressure gauge (see Figure 1 3) in the figure is normal. If the pressure gauge pointer does not move, it may mean that the automatic bolt valve is not working properly or the pressure gauge is damaged.

[0026] Check if the automatic plug valve cannot be opened;

[0027] Check the screws: Slightly loose Figure 1 and see if there is any improvement.

[0028] Replace the pressure gauge: If the automatic plug valve still cannot be opened after loosening the screws, replace the pressure gauge and retest.

[0029] Check the air inlet: If the problem persists after replacing the pressure gauge, check the air inlet in the automatic plug valve (such as Figure 2Check whether the first channel 9 and the second channel 10 are unobstructed and clear the blocked channels.

[0030] Check whether the automatic plug valve is always open;

[0031] Adjustment screw: If the exhaust volume is too large, tighten it Figure 1 2M5 screws in the.

[0032] To remove dirt: Loosen Figure 1 Use the 1-wire head in the middle to clear the dirt from the air barrier block under the stainless steel spring or under the shell.

[0033] Replace the piston or sealing ring: If air is found to be leaking from the small holes on both sides of the automatic bolt valve housing, it is necessary to replace the small piston or small piston sealing ring.

[0034] Check the check valve: Check Figure 2 Check whether there is dust inside the check valves 12 and 13. If so, clean them. Check the glass ball of the check valve ( Figure 2 Check whether the check valve spring (12) is intact. If there are missing pieces, cracks, or out of roundness, replace them. Figure 2 Check 13) for breakage, insufficient elasticity or severe wear. If so, replace it.

[0035] Clean the air hole: If the air hole in the automatic bolt valve is blocked, remove the shell and clean it.

[0036] Reassembly and testing;

[0037] Reassembly: After cleaning or replacing parts, reassemble the automatic plug valve in the correct order.

[0038] Test function: Test the opening and closing functions of the automatic bolting valve by manually closing and opening the manual ball valve on the ash conveying pipeline. Observe the changes in the pressure gauge pointer to ensure that the automatic bolting valve can open and close normally under the set pressure.

[0039] Summarize the troubleshooting process: Record all steps and problems found during the troubleshooting process.

[0040] Document the solution: Record the corrective actions taken and parts replaced.

[0041] Record test results: Record the test results to ensure that the automatic plug valve resumes normal operation in the ash conveying system.

[0042] Through the above steps, the automatic plug-forming valve and its faults in the ash conveying system can be effectively checked and resolved.

[0043] Beneficial effects of the present invention:

[0044] The present invention can locate the fault point of the automatic plugging valve more accurately through detailed troubleshooting steps and the use of multiple pressure gauges, reducing the time and difficulty of fault identification. The precise control and timely response of the automatic plugging valve enable the ash conveying system to quickly return to normal when blocked or with abnormal pressure, thereby improving the stability and operating efficiency of the system.

[0045] The automatic plugging valve does not consume air during normal operation and only opens when needed to clear the blocked dust, thus saving the use of air source. The automatic plugging valve has a reasonable structural design and is easy to disassemble and clean, reducing maintenance costs and difficulty.

[0046] The reasonable use of check valves, springs and other components enhances the reliability and durability of the automatic bolting valve and prolongs its service life. The automatic bolting valve is suitable for various occasions that require control of system fluid flow, especially in industrial environments such as thermal power plants. By timely discovering and solving faults, safety accidents that may be caused by blockage or abnormal pressure in the ash conveying system are avoided, and production safety is improved.

[0047] In summary, the automatic thrombus-forming valve provided by the present invention and its application in the ash conveying system significantly improve the stability and efficiency of the system, reduce maintenance costs, and enhance the reliability and safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0049] Figure 1 A schematic diagram of the structure of an automatic thrombus forming valve provided in an embodiment of the present invention.

[0050] Figure 2 A schematic structural diagram of an automatic thrombus-forming valve provided in an embodiment of the present invention and its application in an ash conveying system.

[0051] Explanation of the accompanying numbers: 1. Thread head, 2. Screw, 3. Pressure gauge, 4. Diaphragm gasket, 5. Valve cover, 6. Piston, 7. Spacer, 8. Spring, 9. First channel, 10. Second channel, 11. Air inlet of automatic bolt valve, 12. Glass ball of check valve, 13. Spring of check valve, 14. Connecting pipe. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The technical solutions provided by the embodiments of the present invention are described in detail below in conjunction with the drawings.

[0053] See also Figure 1 to Figure 2 The present invention provides an automatic bolt-forming valve and its application in an ash conveying system.

[0054] The automatic bolting valve plays an important role in the ash conveying system. When the gas in the accompanying air pipe enters the automatic bolting valve, the ash conveying pipe will automatically open when the pipe is blocked (or when the opening pressure of the automatic bolting valve itself is reached 0.2-0.25MPa), and will automatically close after cleaning (or when the pressure is lower than the opening pressure of the automatic bolting valve itself 0.2-0.25MPa). The automatic bolting valve itself is equipped with a corresponding damping exhaust hole. When there is gas in the accompanying air pipe, the automatic bolting valve will allow a small amount of gas to enter the ash conveying pipe through the damping hole. When the pressure inside the ash conveying pipe is greater than the exhaust volume and reaches a certain value (that is, it reaches the opening pressure of the automatic bolting valve itself), the gas discharged from the damping hole (which will not enter the ash conveying pipe at this time) will pass through Figure 2 10 in the second channel to enter Figure 2 The first channel 9 in the piston chamber enters the piston chamber again, and the piston in the automatic plug valve opens, and the corresponding Figure 1 7 pads in the overcome Figure 1 The pressure of the middle 8 spring automatically opens the plug valve and starts to feed air into the ash conveying pipe, allowing a large amount of gas in the accompanying air pipe to pass through. Figure 2 14 connecting pipes enter Figure 2 The 11 automatic plug valve inlet enters the ash conveying pipeline to remove the clogged ash. When the ash is removed or the pressure in the ash conveying pipeline is lower than (0.2-0.25MPa), the automatic plug valve will automatically close.

[0055] The automatic bolt-forming valve is open. There is a pressure gauge on the automatic bolt-forming valve (see Figure 1 3). First, ensure that there is gas in the accompanying gas pipeline, and then slowly close the manual ball valve on the ash conveying pipeline. When the pressure reaches a certain value (0.2-0.25MPa) (you can see the needle slowly rise to the set value (0.2-0.25MPa)), the piston in the automatic plug valve opens, and the corresponding Figure 1 7 pads in the overcome Figure 1 The pressure of the middle 8 spring automatically opens the bolt valve. When all the manual ball valves on the ash conveying pipeline are closed (it can also be considered as a pipe blockage), Figure 1The pointer of the 3 pressure gauge in the diagram will instantly point to the maximum pressure value from (0.2-0.25MPa) (the pressure value of the gas source in the accompanying gas pipe is displayed at this time). When the manual ball valve on the ash conveying pipeline is slowly opened, air starts to flow into the ash conveying pipe. When the pressure in the ash conveying pipe drops to a certain value (you can see that the needle of the gauge slowly drops to the set value of (0.2-0.25MPa)), Figure 1 The pointer of the 3 pressure gauge will instantly point to the lowest pressure from (0.2-0.25MPa). At this time, all the manual ball valves on the ash conveying pipeline are opened (it can also be considered that the ash conveying pipeline is unblocked). At this time, the piston of the automatic plug valve returns to its position. Figure 1 The 7 pads in the middle return to their original positions, and the automatic plugging valve closes. The plugging valve does not consume gas during normal operation. This saves gas source and solves the pipe blockage problem.

[0056] The automatic plug valve cannot be opened, that is to say Figure 1 If the needle of the middle 3 pressure gauge does not move, you can loosen it slightly. Figure 1 2M5 screws. If they are loose Figure 1 If the 2M5 screw cannot be opened, check the automatic bolt valve. Figure 1 Check if the pressure gauge in 3 is damaged. If so, replace it. Figure 1 If the automatic bolt valve still cannot be opened after the pressure gauge in the middle 3 is replaced, check the air inlet channel in the automatic bolt valve (such as Figure 2 Check whether 9 (first channel) and 10 (second channel) are unobstructed. If blocked, clear them.

[0057] Often open and not closed, that is, the cause of the fault is that the pointer does not fall.

[0058] Exhaust volume is too large: If the exhaust volume is too large, tighten it Figure 1 Loosen the 2M5 screws Figure 1 1 wire head in, clear Figure 1 The 8 stainless steel springs below Figure 1 The 7 air-isolating blocks in the housing or the dirt under the housing. It is found that the small holes on both sides of the housing of the automatic bolt valve are leaking air and need to be replaced. Figure 1 6 small pistons (or small piston sealing rings) in it.

[0059] if Figure 1 The needle of the pressure gauge in the middle 3 does not fall; check Figure 2 There is dust inside the check valves 12 and 13; you can remove them and blow away the dust, and the valve will automatically become a plug. Figure 2 If the 10 and 9 air transfer holes are blocked, remove the housing and clean it. Note: When assembling, be sure to automatically form the valve housing, Figure 1 4 diaphragm valve pads in Figure 1 The 5th eye of the valve cover corresponds to the 5th eye of the valve cover. Figure 2 The glass ball of the 12 check valve needs to be replaced if there are missing pieces, cracks, or out of roundness (severe wear and deformation). Figure 2 If the 13 check valve spring is broken, has insufficient elasticity (the glass ball on the top is loose), or is severely worn (such as the spring is worn by 1 / 5 or more), it needs to be replaced.

[0060] The technical solution of the present invention solves the problem of low fault identification efficiency by:

[0061] The outer wall of the automatic bolt forming valve body is equipped with a pressure gauge, including a first pressure gauge and a second pressure gauge. The first pressure gauge is connected to the first channel to detect the pressure of the first channel; the second pressure gauge is connected to the second channel to detect the pressure of the second channel. This provides more comprehensive pressure monitoring and helps to accurately determine the fault location.

[0062] Specific troubleshooting steps are provided, including preliminary inspection to confirm the status of the accompanying gas pipeline, observation of the pressure gauge, inspection of screws, replacement of the pressure gauge, inspection of the air inlet, adjustment of screws, removal of dirt, replacement of pistons or sealing rings, inspection of the check valve, cleaning of the air transfer holes, etc. These steps help to locate and solve faults in a systematic manner.

[0063] Record all the steps and problems found during the troubleshooting process, as well as the solutions taken and parts replaced, and the test results. This will help with subsequent analysis and improvement, and improve the efficiency and accuracy of fault identification.

[0064] A first control valve is installed at the connection between the connecting pipe and the gas supply pipeline, and a second control valve is installed at the connection between the external pipeline and the ash conveying pipeline. This allows for more precise control of gas flow when necessary, helping to isolate and diagnose problems during troubleshooting.

[0065] A check valve is installed on the inlet end of the external pipe, and a check valve glass ball and a check valve spring are installed inside the check valve. The function of the check valve is to prevent gas backflow, thereby protecting the automatic plug valve from damage by reverse pressure and reducing the possibility of failure.

[0066] After the ash conveying system is installed, a system check is performed to check whether the pressure gauge is accurate. This ensures that there is no problem with the pressure gauge itself, thereby improving the reliability of fault identification. By optimizing the internal structure and components of the automatic bolting valve, such as the damping exhaust hole, piston, pad, spring, etc., its overall performance and reliability are improved, and the frequency of faults is reduced.

[0067] Through these comprehensive measures, the present invention effectively solves the problem of low fault identification efficiency of the automatic thrombus forming valve in the ash conveying system.

[0068] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more than two. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" do not necessarily limit the difficulty. The above-described embodiments of the present application do not constitute a limitation on the protection scope of the present application.

[0069] The above-described embodiments of the present invention do not limit the protection scope of the present invention.

Claims

1. An automatic bolt-forming valve, characterized in that: include: Automatic bolt-forming valve body; An inner cavity is installed inside the main body of the automatic bolt forming valve, and a cushion block and a spring are installed in the inner cavity; An air inlet of the automatic bolt-forming valve is installed on one side of the main body of the automatic bolt-forming valve, and a valve cover is installed on the other side of the main body of the automatic bolt-forming valve. A first channel (9) and a second channel (10) are also installed inside the main body of the automatic bolt-forming valve. The first channel (9) is connected to the second channel (10), and the second channel (10) is communicated with the inner cavity. The outer wall of the main body of the automatic bolt-forming valve is provided with an automatic bolt-forming valve air inlet (11), a connecting pipe (14) is installed at the automatic bolt-forming valve air inlet (11), the inlet end of the connecting pipe (14) is connected to the automatic bolt-forming valve air inlet (11), and the outlet end of the automatic bolt-forming valve air inlet (11) is connected to the air supply pipeline; An external pipeline is installed on the side wall of the main body of the automatic bolt forming valve, a check valve is installed on the inlet end of the external pipeline, a check valve glass ball (12) and a check valve spring (13) are installed inside the check valve, and the inlet and outlet ends of the external pipeline are connected to the ash conveying pipeline.

2. The automatic thrombus-forming valve according to claim 1, characterized in that: A first control valve is installed at the connection point between the connecting pipe (14) and the gas supply pipeline.

3. The automatic thrombus-forming valve according to claim 2, characterized in that: A second control valve is installed at the connection between the external pipeline and the ash conveying pipeline.

4. The automatic thrombus-forming valve according to claim 3, characterized in that: A pressure gauge (3) is installed on the outer wall of the main body of the automatic bolt-forming valve. The pressure gauge (3) is connected to the first channel (9). The pressure gauge (3) is used to detect the pressure of the first channel (9).

5. The automatic thrombus-forming valve according to claim 3, characterized in that: A pressure gauge (3) is installed on the outer wall of the main body of the automatic bolt-forming valve. The pressure gauge (3) is connected to the second channel (10). The pressure gauge (3) is used to detect the pressure of the second channel (10).

6. The automatic thrombus-forming valve according to claim 3, characterized in that: The pressure gauge (3) comprises a first pressure gauge and a second pressure gauge. The first pressure gauge and the second pressure gauge are installed on the outer wall of the automatic bolt forming valve body. The first pressure gauge is connected to the first channel (9) and is used to detect the pressure of the first channel (9). The second pressure gauge is connected to the second channel (10) and is used to detect the pressure of the second channel (10).

7. An automatic plugging valve and its application in an ash conveying system, applied to the automatic plugging valve as claimed in any one of claims 1 to 4, characterized in that: Install the automatic bolt-forming valve in the ash conveying system, and check the connection status of each component of the automatic bolt-forming valve, including the connection between the connecting pipe and the external pipeline, and the installation position of the check valve and the spring; After the automatic bolt valve is installed in the ash conveying system, the ash conveying system should be checked to see if the pressure gauge is accurate, whether the control valve switch is flexible, and whether the check valve is working properly; Start the ash conveying system, monitor the channel pressure through the pressure gauge, and monitor the working status of the automatic plug valve; If the automatic plug valve fails, such as failing to open or often opening and not closing, troubleshooting should be carried out. The troubleshooting method includes checking whether the pressure gauge is damaged, whether the air inlet is unobstructed, and whether there is dust inside the check valve.

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