Valve seal failure first alarm device

Abstract

The utility model discloses a valve sealing failure first -class alarm device belongs to control valve technical field, including valve body, the valve body one side fixed installation has the connecting pipe, is equipped with spark plug in the connecting pipe, in the utility model, through setting up the limit component and spark plug in, through this design, realized when the first -class sealing measure failure, fluid passes through the electrode contact of first -class sealing measure and spark plug, and further triggers the alarm device connected with spark plug, and after the installation of spark plug, can be moved through the rotation bolt drive limit support, make the limit support and the groove of spark plug outer wall set up contact spark plug and can make extruding frame bottom end insert between limit support and spark plug and limit the nut of spark plug outer wall, avoid due to the flow of fluid and lead to the vibration of valve body, and further influence the connection between spark plug and connecting pipe, thereby further ensure the stability of spark plug and valve body connection.

Description

Technical Field

[0001] This utility model belongs to the field of control valve technology, and in particular relates to a first-level alarm device for valve sealing failure. Background Technology

[0002] High-density, high-temperature, and highly corrosive fluids are characterized by their special properties, often being metallic liquids with temperatures above 400℃. Valves typically employ a bellows-type straight-stroke structure, providing both regulation and shut-off functions. However, external leakage requirements for these valves are stringent, and no external leakage is permissible. Therefore, a two-stage sealing system is employed, and the valve design is designed to prevent leakage.

[0003] In the process of valve use, traditional valves generally do not have alarm devices, which makes it impossible to detect and deal with leaks in the primary sealing measures in a timely manner. As a result, secondary sealing measures are required to seal the valve body, which puts the secondary sealing measures under pressure and high temperature, thus posing certain hidden dangers. In order to solve the above problems, there is an urgent need for a valve sealing failure primary alarm device. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the failure of the primary sealing measure in a valve cannot be detected in time, and to propose a primary alarm device for valve sealing failure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a valve sealing failure level one alarm device, including a valve body, a connecting pipe fixedly installed on one side of the valve body, a mounting base fixedly installed at the top of the connecting pipe, and a spark plug provided inside the connecting pipe; a limiting component, the limiting component being located on one side of the mounting base; and an auxiliary sealing component, the auxiliary sealing component being located inside the connecting pipe.

[0006] The limiting component includes a pressure plate, a pressing frame is fixedly installed at one end of the pressure plate, a bolt is threadedly connected to the pressure plate through a threaded hole inside, a sliding plate is slidably installed on the outer wall of the bolt, a limiting frame is fixedly installed at one end of the sliding plate, and a spring is fixedly installed on the top surface of the sliding plate.

[0007] As a further description of the above technical solution:

[0008] The pressure plate is slidably connected to the mounting base through a groove opened in the mounting base, and the bolt is rotatably connected to the mounting base through a through hole opened in the mounting base.

[0009] As a further description of the above technical solution:

[0010] The sliding plate is slidably connected to the mounting base through a groove opened in the mounting base, and the top end of the spring is fixedly connected to the pressure plate.

[0011] As a further description of the above technical solution:

[0012] The extrusion frame is slidably connected to the limiting frame on one side. The limiting frame is located above the spark plug, and the outer wall of the spark plug has a groove corresponding to the limiting frame.

[0013] As a further description of the above technical solution:

[0014] The auxiliary sealing assembly includes a sealing ring located in a groove on the inner wall of the connecting pipe, and the inner ring of the sealing ring is in contact with the outer wall of the spark plug.

[0015] As a further description of the above technical solution:

[0016] The outer ring of the sealing ring is provided with a second tightening ring, the outer wall of the sealing ring is provided with a groove and the second tightening ring is corresponding to the groove, and the outer wall of the second tightening ring is provided with a first tightening ring.

[0017] As a further description of the above technical solution:

[0018] The first tightening ring has wedges fixedly installed at both ends, and a sliding frame is provided at the top of the first tightening ring.

[0019] As a further description of the above technical solution:

[0020] Both ends of the sliding frame are provided with tightening grooves, and the wedge is located in the tightening groove.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0022] 1. In this utility model, by incorporating a limiting component and a spark plug, this design enables the spark plug to extend into the valve body and be positioned between the primary and secondary sealing measures during valve operation. When the primary sealing measure fails, the fluid contacts the spark plug electrode, causing the spark plug to conduct and triggering the alarm device connected to it. After the spark plug is installed, the limiting bracket can be moved by rotating the bolt, allowing it to contact the groove on the outer wall of the spark plug, thus limiting its movement. The compression bracket also moves downwards with the bolt rotation, allowing its bottom end to insert between the baffles on both sides of the limiting bracket and the nut on the outer wall of the spark plug. The teeth at the bottom of the compression bracket limit the nut on the outer wall of the spark plug, preventing vibration of the valve body due to fluid flow, which could affect the connection between the spark plug and the connecting pipe, thereby further ensuring the stability of the spark plug-valve body connection.

[0023] 2. In this utility model, by providing an auxiliary sealing component, this design enables the following: after the spark plug is installed, when the spark plug is fixed by the limiting bracket and the compression bracket, the sliding plate can compress the sliding bracket, causing the wedge to be compressed. This tightens the first and second tightening rings and compresses the sealing ring, ensuring the sealing performance between the spark plug and the connecting pipe. Furthermore, since the second tightening ring has inclined surfaces on both sides, the compression of the sealing ring by the second tightening ring allows the sealing ring to be tightly connected to the inner wall of the connecting pipe, further ensuring the sealing performance between the spark plug and the connecting pipe. Attached Figure Description

[0024] Figure 1 A three-dimensional structural diagram of a primary alarm device for valve sealing failure.

[0025] Figure 2 This is a three-dimensional exploded view of a valve sealing failure level 1 alarm device.

[0026] Figure 3 This is an exploded three-dimensional structural diagram of the limit component in a valve sealing failure level 1 alarm device.

[0027] Figure 4 This is an exploded three-dimensional structural diagram of the auxiliary sealing component in a valve seal failure level one alarm device.

[0028] Legend:

[0029] 1. Valve body; 2. Mounting base; 3. Limiting assembly; 31. Pressure plate; 32. Extrusion frame; 33. Limiting frame; 34. Sliding plate; 35. Bolt; 36. Spring; 4. Spark plug; 5. Connecting pipe; 6. Auxiliary sealing assembly; 61. Sliding frame; 62. Tightening groove; 63. Wedge block; 64. First tightening ring; 65. Second tightening ring; 66. Sealing ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] In its specific implementation, such as Figures 1-4This utility model provides a technical solution: a valve sealing failure level one alarm device, including a valve body 1, a connecting pipe 5 fixedly installed on one side of the valve body 1, a mounting base 2 fixedly installed at the top of the connecting pipe 5, and a spark plug 4 provided inside the connecting pipe 5; a limiting component 3, the limiting component 3 being located on one side of the mounting base 2; and an auxiliary sealing component 6, the auxiliary sealing component 6 being located inside the connecting pipe 5.

[0032] The limiting component 3 includes a pressure plate 31, with a pressing frame 32 fixedly installed at one end of the pressure plate 31. A bolt 35 is threadedly connected to the pressure plate 31 through a threaded hole inside. A sliding plate 34 is slidably installed on the outer wall of the bolt 35. A limiting frame 33 is fixedly installed at one end of the sliding plate 34. A spring 36 is fixedly installed on the top surface of the sliding plate 34. The pressure plate 31 is slidably connected to the mounting base 2 through a groove inside the mounting base 2. The bolt 35 is rotatably connected to the mounting base 2 through a through hole inside the mounting base 2. The sliding plate 34 is slidably connected to the mounting base 2 through a groove inside the mounting base 2. The top end of the spring 36 is fixedly connected to the pressure plate 31. One side of the pressing frame 32 is slidably connected to the limiting frame 33. The limiting frame 33 is located above the spark plug 4, and the outer wall of the spark plug 4 has a groove corresponding to the limiting frame 33.

[0033] During valve operation, spark plug 4 can be connected to valve body 1 via connecting pipe 5. When the primary sealing bellows ruptures, causing high-density, high-temperature, and highly corrosive fluid to leak into valve body 1, the fluid comes into contact with the electrode of spark plug 4, thus placing spark plug 4 in a connected state. This activates the alarm device connected to spark plug 4, which is known in this technical field and therefore not described in detail here. After spark plug 4 is installed, it can be connected by rotating bolt 35. The moving pressure plate 31 moves downward and pushes the spring 36 and the sliding plate 34 downward. The movement of the sliding plate 34 drives the limiting frame 33 to move downward, so that the bottom end of the limiting frame 33 corresponds to the groove opened on the outer wall of the spark plug 4. Thus, the limiting frame 33 limits the spark plug 4 to a certain extent. At the same time, the downward movement of the pressure plate 31 can drive the extrusion frame 32 to move downward, so that the lower end of the extrusion frame 32 can be inserted between the baffles on both sides of the limiting frame 33 and the nut of the spark plug 4. Thus, the extrusion frame 32 limits and fixes the nut of the spark plug 4.

[0034] like Figure 4As shown, the auxiliary sealing assembly 6 includes a sealing ring 66, which is located in a groove on the inner wall of the connecting pipe 5. The inner ring of the sealing ring 66 is in contact with the outer wall of the spark plug 4. The outer ring of the sealing ring 66 is provided with a second tightening ring 65. The outer wall of the sealing ring 66 is provided with a groove, and the second tightening ring 65 corresponds to the groove. The outer wall of the second tightening ring 65 is provided with a first tightening ring 64. Wedges 63 are fixedly installed at both ends of the first tightening ring 64. A sliding frame 61 is provided at the top of the first tightening ring 64. Tightening grooves 62 are opened at both ends of the sliding frame 61, and the wedges 63 are located in the tightening grooves 62.

[0035] During the downward movement of the pressure plate 31 and sliding plate 34 driven by the rotating bolt 35, the sliding plate 34 squeezes the sliding frame 61, causing the sliding frame 61 to move downward. This causes the wedge block 63 to be squeezed by the tightening grooves 62 on both sides of the sliding frame 61, resulting in the contraction of the first tightening ring 64. Simultaneously, the contraction of the first tightening ring 64 squeezes the second tightening ring 65, causing the second tightening ring 65 to contract as well. Since the second tightening ring 65 has inclined surfaces on both sides and the sealing ring 66 has grooves corresponding to the second tightening ring 65, when the contraction of the second tightening ring 65 causes the sealing ring 66 to come into close contact with the outer wall of the spark plug 4, the squeezing of the sealing ring 66 by the inclined surfaces on both sides of the second tightening ring 65 ensures that the sealing ring 66 comes into close contact with the inner wall of the connecting pipe 5, thereby further ensuring the sealing effect of the sealing ring 66.

[0036] Working principle: During valve use, spark plug 4 can be connected to valve body 1 via connecting pipe 5. When the primary sealing bellows ruptures, causing high-density, high-temperature, and highly corrosive fluid to leak into valve body 1, the fluid comes into contact with the electrode of spark plug 4, thus putting spark plug 4 in a connected state. This activates the alarm device connected to spark plug 4 and sounds an alarm. The alarm device is well-known in this technical field, so it is not described in detail here. After spark plug 4 is installed, rotating bolt 35 can move pressure plate 31 downward, pushing spring 36 and sliding plate 34 downward. The movement of sliding plate 34 causes limit bracket 33 to move downward, so that the bottom end of limit bracket 33 corresponds to the groove on the outer wall of spark plug 4, thereby limiting spark plug 4. At the same time, the downward movement of pressure plate 31 can move extrusion bracket 32 ​​downward, allowing the lower end of extrusion bracket 32 ​​to be inserted. The limit bracket 32 ​​is positioned between the baffles on both sides of the limit bracket 33 and the nut of the spark plug 4, thereby limiting and fixing the nut of the spark plug 4. During the process of the pressure plate 31 and the sliding plate 34 moving downward by rotating the bolt 35, the sliding plate 34 will squeeze the sliding bracket 61, thereby causing the sliding bracket 61 to move downward. This will squeeze the wedge block 63 through the tightening grooves 62 on both sides of the sliding bracket 61, thereby causing the first tightening ring 64 to contract. At the same time, the contraction of the first tightening ring 64 can squeeze the second tightening ring 65, thereby causing the second tightening ring 65 to contract. Since the second tightening ring 65 has inclined surfaces on both sides and the sealing ring 66 has a groove on its surface corresponding to the second tightening ring 65, when the contraction of the second tightening ring 65 causes the sealing ring 66 to come into close contact with the outer wall of the spark plug 4, the squeezing of the sealing ring 66 by the inclined surfaces on both sides of the second tightening ring 65 can make the sealing ring 66 come into close contact with the inner wall of the connecting pipe 5, thereby further ensuring the sealing effect of the sealing ring 66.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A valve sealing failure level one alarm device, characterized in that, include: A valve body (1) is provided with a connecting pipe (5) fixedly installed on one side of the valve body (1), and a mounting seat (2) is fixedly installed at the top of the connecting pipe (5). A spark plug (4) is provided inside the connecting pipe (5). A limiting component (3) is located on one side of the mounting base (2); An auxiliary sealing assembly (6) is located inside the connecting pipe (5); The limiting component (3) includes a pressure plate (31), one end of which is fixedly installed with an extrusion frame (32). The pressure plate (31) is threadedly connected to a bolt (35) through a threaded hole inside. A sliding plate (34) is slidably installed on the outer wall of the bolt (35). A limiting frame (33) is fixedly installed on one end of the sliding plate (34). A spring (36) is fixedly installed on the top surface of the sliding plate (34).

2. The valve sealing failure level one alarm device according to claim 1, characterized in that, The pressure plate (31) is slidably connected to the mounting base (2) through a groove opened in the mounting base (2), and the bolt (35) is rotatably connected to the mounting base (2) through a through hole opened in the mounting base (2).

3. The valve sealing failure level one alarm device according to claim 2, characterized in that, The sliding plate (34) is slidably connected to the mounting base (2) through a groove opened in the mounting base (2), and the top end of the spring (36) is fixedly connected to the pressure plate (31).

4. The valve sealing failure level one alarm device according to claim 3, characterized in that, The extrusion frame (32) is slidably connected to the limiting frame (33) on one side. The limiting frame (33) is located above the spark plug (4) and the outer wall of the spark plug (4) has a groove corresponding to the limiting frame (33).

5. The valve sealing failure level one alarm device according to claim 4, characterized in that, The auxiliary sealing assembly (6) includes a sealing ring (66), which is located in a groove opened in the inner wall of the connecting pipe (5), and the inner ring of the sealing ring (66) is in contact with the outer wall of the spark plug (4).

6. The valve sealing failure level one alarm device according to claim 5, characterized in that, The sealing ring (66) has a second tightening ring (65) on its outer ring. The outer wall of the sealing ring (66) has a groove and the second tightening ring (65) corresponds to the groove. The outer wall of the second tightening ring (65) has a first tightening ring (64).

7. The valve sealing failure level one alarm device according to claim 6, characterized in that, The first tightening ring (64) has wedges (63) fixedly installed at both ends, and a sliding frame (61) is provided at the top of the first tightening ring (64).

8. The valve sealing failure level one alarm device according to claim 7, characterized in that, The sliding frame (61) has tightening grooves (62) at both ends, and the wedge (63) is located in the tightening groove (62).

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