Regulating type explosion-proof safety valve

Abstract

The utility model discloses an adjusting type explosion -proof safety valve, it includes valve body, one end of valve body is provided with valve cover, the both sides of valve body's outside all are seted up to have installed groove, the inside fixed mounting of installed groove has two springs, the upper fixed mounting of spring has the fixed plate, the upper fixed mounting of fixed plate has two support plate. Through above -mentioned structure, the adjusting type explosion -proof safety valve of this technical scheme, through the spring in valve body outside installed groove, fixed plate and positioning shaft, cooperate the positioning hole of valve cover one end positioning plate, can complete the stable assembly of valve cover quickly, need not complex tool debugging, when disassembling maintenance, only need to press down the compression spring of support plate, make the positioning shaft separate from the positioning hole, can easily take down valve cover, greatly shorten the dismounting time.

Description

Technical Field

[0001] This utility model relates to the field of safety engineering technology, and in particular to a regulating explosion-proof safety valve. Background Technology

[0002] Regulating explosion-proof safety valves are key safety control components in flammable and explosive fluid systems such as petrochemical plants, natural gas transmission plants, and chemical reactors, and have both pressure regulation and explosion-proof protection functions.

[0003] When using a regulating explosion-proof safety valve, operators need to fix the valve to the designated pressure relief port of the pipeline or equipment via flange or threaded connection according to the system pipeline specifications and pressure parameters, ensuring that the valve body is coaxial with the pipeline and that the sealing surface is free of impurities. Then, the opening pressure is set through the adjustment mechanism on the top of the safety valve, and the overpressure condition is simulated using pressure testing equipment to verify whether the valve can accurately open and relieve pressure, and whether it can reseat and seal normally after pressure relief. However, the valve cover and valve body of the safety valve are often connected by multiple sets of bolts. During assembly, special tools such as wrenches and torque wrenches are required to tighten each bolt one by one. During disassembly, the bolts must also be assembled and disassembled one by one. Especially under the explosion-proof shell structure, the number of bolts is large and the installation space is limited, making the operation cumbersome and time-consuming, which seriously prolongs the maintenance time. In the case of emergency maintenance of the production system, the low disassembly and assembly efficiency may also affect the speed of system recovery. Therefore, in order to solve this problem, we have proposed a regulating explosion-proof safety valve. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an adjustable explosion-proof safety valve that does not require complicated tools for debugging. During disassembly and maintenance, it is only necessary to press down the pressure plate to drive the support plate to compress the spring, so that the positioning shaft is disengaged from the positioning hole, and the valve cover can be easily removed. This greatly shortens the disassembly and assembly time, avoids the performance degradation of the safety valve due to filter screen blockage, reduces the operation difficulty of maintenance personnel, and reduces the manpower and time costs of equipment maintenance.

[0005] This utility model also provides an adjustable explosion-proof safety valve, including a valve body, a valve cover at one end of the valve body, mounting grooves on both sides of the valve body, two springs fixedly installed inside the mounting grooves, a fixing plate fixedly installed above the springs, two support plates fixedly installed above the fixing plates, and a pressure plate fixedly installed above the support plates.

[0006] According to the present invention, an adjustable explosion-proof safety valve is provided, wherein a positioning plate is fixedly installed at one end of the valve cover, and positioning holes are provided inside the positioning plate. A positioning shaft is fixedly installed above the fixing plate. Two through holes are provided at one end of the valve body, and the through holes are connected to the mounting groove. One end of the positioning plate extends into the mounting groove through the through hole of the valve body, and one end of the positioning shaft can extend into the positioning hole of the positioning plate.

[0007] According to the present invention, an adjustable explosion-proof safety valve has an installation plate fixedly installed on the outside of the valve body, a positioning groove is provided inside the installation plate, a filter screen is provided inside the positioning groove, and a limit plate is provided above the filter screen.

[0008] According to the present invention, a rubber ring is fixedly installed below the limiting plate, and one end of the limiting plate and the rubber ring are in close contact with the upper end of the mounting plate.

[0009] According to the present invention, an adjustable explosion-proof safety valve is provided, wherein a first mounting plate is fixedly installed on both sides of the limiting plate, and bolts are provided inside the first mounting plate; a second mounting plate is fixedly installed on both sides of the outer side of the mounting plate, and one end of the bolt extends into the interior of the second mounting plate.

[0010] According to the present invention, an adjustable explosion-proof safety valve has filter holes inside the filter screen, and the filter screen is disposed inside the valve body.

[0011] Beneficial effects: 1. The regulating explosion-proof safety valve of this technical solution can quickly and stably assemble the valve cover by using the spring, fixing plate and positioning shaft in the mounting groove on the outside of the valve body, in conjunction with the positioning hole of the positioning plate at one end of the valve cover. No complicated tools are required for debugging. During disassembly and maintenance, it is only necessary to press down the pressure plate to drive the support plate to compress the spring, so that the positioning shaft is disengaged from the positioning hole, and the valve cover can be easily removed, which greatly shortens the disassembly and assembly time.

[0012] 2. The filter screen installed in the positioning groove of the external mounting plate of the valve body has filter holes that can effectively intercept impurities, particles and other foreign objects in the medium, preventing foreign objects from entering the valve body. The limit plate, the first fixed plate, the second fixed plate and the bolts can quickly disassemble, clean or replace the filter screen, avoiding the performance degradation of the safety valve due to filter screen blockage, reducing the operation difficulty of maintenance personnel and reducing the manpower and time costs of equipment maintenance. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a perspective view of an adjustable explosion-proof safety valve according to the present invention; Figure 2 This is a structural diagram of the valve cover of a regulating explosion-proof safety valve according to this utility model; Figure 3 This is a structural diagram of the lower pressure plate of an adjustable explosion-proof safety valve according to this utility model; Figure 4 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 5 This is a structural diagram of the mounting plate of an adjustable explosion-proof safety valve according to this utility model; Figure 6 This is a structural diagram of the filter screen of an adjustable explosion-proof safety valve according to this utility model.

[0014] Legend: 1. Valve body; 2. Valve cover; 3. Mounting groove; 4. Spring; 5. Fixing plate; 6. Support plate; 7. Lower pressure plate; 8. Positioning plate; 9. Positioning shaft; 10. Positioning groove; 11. Filter screen; 12. Limiting plate; 13. Rubber ring; 14. First fixing plate; 15. Bolt; 16. Second fixing plate; 17. Mounting plate. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] Reference Figure 1-6 This utility model discloses an adjustable explosion-proof safety valve, which includes a valve body 1. The valve body 1 facilitates the flow of the medium. A valve cover 2 is provided at one end of the valve body 1. The valve cover 2 can prevent external dust, water vapor, corrosive gases and other impurities from entering the interior of the valve body 1. Mounting grooves 3 are provided on both sides of the exterior of the valve body 1. The mounting grooves 3 facilitate the operation of springs 4. Two springs 4 are fixedly installed inside the mounting grooves 3. The elasticity of the springs 4 facilitates the installation or removal of the valve cover 2. A fixing plate 5 is fixedly installed above the springs 4. The fixing plate 5 can press down on the springs 4. Two support plates 6 are fixedly installed above the fixing plate 5. The support plates 6 can support the operation of the pressure plate 7. The pressure plate 7 is fixedly installed above the support plates 6. The pressure plate 7 can easily compress the springs 4.

[0017] Specifically, a positioning plate 8 is fixedly installed on one end of the valve cover 2. Positioning holes are provided inside the positioning plate 8. The valve cover 2 can be quickly installed or removed through the positioning plate 8. A positioning shaft 9 is fixedly installed on the top of the fixing plate 5. The valve cover 2 can be fixed using the positioning shaft 9. Two through holes are provided on one end of the valve body 1. Both through holes are connected to the mounting groove 3. When the through holes are connected to the mounting groove 3, the positioning plate 8 can be fixed. One end of the positioning plate 8 extends into the interior of the mounting groove 3 through the through hole of the valve body 1. One end of the positioning shaft 9 can extend into the positioning hole of the positioning plate 8. When the positioning plate 8 extends into the interior of the mounting groove 3, the positioning shaft 9 can extend into the positioning hole of the positioning plate 8.

[0018] Specifically, an mounting plate 17 is fixedly installed on the outside of the valve body 1. The mounting plate 17 facilitates the placement of the filter screen 11 inside the valve body 1. A positioning groove 10 is provided inside the mounting plate 17, which can limit the position of the filter screen 11. The filter screen 11 is placed inside the positioning groove 10. A limiting plate 12 is provided above the filter screen 11, which facilitates the fixing of the filter screen 11 and prevents the filter screen 11 from shifting during operation.

[0019] Specifically, a rubber ring 13 is fixedly installed below the limiting plate 12. One end of the limiting plate 12 and the rubber ring 13 are in close contact with the upper end of the mounting plate 17. When one end of the limiting plate 12 and the rubber ring 13 are in close contact with the upper end of the mounting plate 17, the rubber ring 13 can achieve a sealing effect.

[0020] Specifically, a first mounting plate 14 is fixedly installed on both sides of the limiting plate 12. Bolts 15 are provided inside the first mounting plate 14. The filter screen 11 can be easily replaced using the bolts 15. A second mounting plate 16 is fixedly installed on both sides of the outer side of the mounting plate 17. One end of the bolt 15 extends into the interior of the second mounting plate 16. When the bolt 15 extends into the interior of the second mounting plate 16, the limiting plate 12 and the mounting plate 17 can be fixedly connected.

[0021] Specifically, the filter screen 11 has filter holes inside and is located inside the valve body 1. When the filter screen 11 is located inside the valve body 1, it can help intercept impurities in the flowing medium inside the valve body 1 and prevent impurities from affecting subsequent operations.

[0022] Working principle: When installing the valve cover 2, press down the pressure plate 7 to compress the two springs 4 fixed in the mounting groove 3. Align the positioning plate 8 fixed at one end of the valve cover 2 with the through hole opened at one end of the valve body 1, which is connected to the mounting groove 3. The positioning plate 8 extends through the through hole into the mounting groove 3 on both sides of the valve body 1. Then, release the pressure plate 7 so that the positioning shaft 9 fixed above the fixing plate 5 will automatically insert into the positioning hole opened inside the positioning plate 8 under the elastic reset action of the spring 4, completing the stable assembly of the valve cover 2 and the valve body 1. No complicated tools are needed for adjustment. When disassembling, if necessary... When disassembling valve cover 2 for internal maintenance, the operator only needs to press down on the lower pressure plate 7 fixed above the support plate 6. The lower pressure plate 7 drives the two support plates 6 below to move downward, thereby pressing the fixing plate 5 fixed below the support plate 6. After being pressed, the fixing plate 5 compresses the two springs 4 in the mounting groove 3, causing the fixing plate 5 to move downward as a whole. Finally, it drives the positioning shaft 9 above the fixing plate 5 to disengage from the positioning hole of the positioning plate 8. At this time, the positioning plate 8 can be pulled out from the through hole of the valve body 1, and the valve cover 2 can be easily removed, which greatly shortens the disassembly and assembly time and improves maintenance efficiency. When the medium flows through the valve body 1 A filter screen 11 is installed in the positioning groove 10 inside the mounting plate 17, and the filter screen 11 extends into the valve body 1. When the medium passes through the filter screen 11, the filter holes inside it can effectively intercept impurities, particles and other foreign objects in the medium, preventing foreign objects from entering the valve body 1 and affecting the operation of the core components of the safety valve, thus ensuring the stability of the safety valve's explosion-proof and pressure regulation performance. The limiting plate 12 installed above the filter screen 11 can limit and fix the filter screen 11, and the rubber ring 13 fixed below the limiting plate 12 is in close contact with the upper end of the mounting plate 17 to enhance the sealing performance. To prevent media leakage, when cleaning or replacing the filter screen 11 is required, the operator only needs to unscrew the bolts 15 inside the first fixed plate 14 fixed on both sides of the limiting plate 12. One end of the bolt 15 extends into the second fixed plate 16 fixed on both sides of the mounting plate 17, thus connecting and fixing the first fixed plate 14 and the second fixed plate 16. Then, the limiting plate 12 and the rubber ring 13 can be removed, and the filter screen 11 can be taken out from the positioning groove 10 for cleaning or replacement. This avoids the safety valve performance degradation due to filter screen 11 clogging, reducing maintenance difficulty and labor and time costs. The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model.

Claims

1. A regulating explosion-proof safety valve, comprising a valve body (1), characterized in that: A valve cover (2) is provided at one end of the valve body (1). Mounting grooves (3) are provided on both sides of the valve body (1). Two springs (4) are fixedly installed inside the mounting grooves (3). A fixing plate (5) is fixedly installed above the springs (4). Two support plates (6) are fixedly installed above the fixing plates (5). A pressure plate (7) is fixedly installed above the support plates (6).

2. The adjustable explosion-proof safety valve according to claim 1, characterized in that, A positioning plate (8) is fixedly installed at one end of the valve cover (2). Positioning holes are provided inside the positioning plate (8). A positioning shaft (9) is fixedly installed above the fixing plate (5). Two through holes are provided at one end of the valve body (1), and the through holes are connected to the mounting groove (3). One end of the positioning plate (8) extends into the mounting groove (3) through the through hole of the valve body (1). One end of the positioning shaft (9) can extend into the positioning hole of the positioning plate (8).

3. The adjustable explosion-proof safety valve according to claim 1, characterized in that, An installation plate (17) is fixedly installed on the outside of the valve body (1). A positioning groove (10) is provided inside the installation plate (17). A filter screen (11) is provided inside the positioning groove (10). A limit plate (12) is provided above the filter screen (11).

4. The adjustable explosion-proof safety valve according to claim 3, characterized in that, A rubber ring (13) is fixedly installed below the limiting plate (12), and one end of the limiting plate (12) and the rubber ring (13) is in close contact with the upper end of the mounting plate (17).

5. The adjustable explosion-proof safety valve according to claim 4, characterized in that, Both sides of the limiting plate (12) are fixedly installed with a first mounting plate (14), and bolts (15) are provided inside the first mounting plate (14). Both sides of the mounting plate (17) are fixedly installed with a second mounting plate (16), and one end of the bolt (15) extends into the interior of the second mounting plate (16).

6. The adjustable explosion-proof safety valve according to claim 3, characterized in that, The filter screen (11) has filter holes inside and is located inside the valve body (1).

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