Valve special for chlorine

Abstract

The utility model discloses a special chlorine valve and relates to the technical field of valves. According to the valve special for chlorine, due to the pressing effect of the sealing filler on the inner side of the valve cover and the gland, sealing connection between the corrugated pipe on the top of the valve element and the valve cover and tight abutting connection between the sealing gasket at the bottom of the valve element and the valve seat, leakage of chlorine is effectively prevented through the multiple sealing structures, and the sealing performance of the valve is improved; the valve body, the valve seat, the valve element and other parts are made of corrosion-resistant materials suitable for the chlorine gas environment, and the service life of the valve is prolonged; the support and the valve cover are stably connected, the clamping blocks on the outer side of the connecting piece guide and limit the movement of the valve rod, and the spring in the piston cylinder has the buffering effect on the movement of the piston, so that the valve is more stable in the operation process, shaking and impact are reduced, and the accuracy and reliability of operation are improved; through the pressure adjusting hole, the pressure in the piston cylinder can be rapidly changed by means of an external control device, emergency closing of the valve is achieved, emergencies are effectively dealt with, and production safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is special valve of chlorine. BACKGROUND

[0002] In the chemical production process, chlorine as a commonly used chemical raw material, its delivery and control need special valve.

[0003] The existing chlorine delivery process needs to use check valve, and the existing check valve has the problems of poor sealing performance, easy corrosion and poor operation stability. The sealing structure between the valve core and the valve seat of some check valves is unreasonable, which leads to chlorine leakage, not only causing raw material waste, but also threatening the safety of the environment and the operating personnel. At the same time, due to the strong corrosive nature of chlorine, the material and structure of ordinary valves are difficult to withstand long-term corrosion, resulting in a shorter service life of the valve, and frequent replacement of the valve increases production cost and maintenance workload. In addition, in the face of emergency situations, the existing valve is difficult to achieve rapid and reliable emergency shutdown.

[0004] The sealing structure between the valve core and the valve seat is unreasonable, which easily causes chlorine leakage, not only causing raw material waste, but also threatening the safety of the environment and the operating personnel. The strong corrosive nature of chlorine makes the service life of ordinary valves shorter, increasing production cost and maintenance workload. In addition, in the face of emergency situations, the existing check valve is difficult to achieve rapid and reliable emergency shutdown. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a special valve for chlorine, which solves the problem of unreasonable sealing structure between the valve core and the valve seat, which easily causes chlorine leakage, not only causing raw material waste, but also threatening the safety of the environment and the operating personnel. The strong corrosive nature of chlorine makes the service life of ordinary valves shorter, increasing production cost and maintenance workload. In addition, in the face of emergency situations, the existing check valve is difficult to achieve rapid and reliable emergency shutdown.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a special valve for chlorine, comprising a valve body, a bracket and a piston cylinder, the bracket is located above the valve body, and the piston cylinder is located above the bracket, characterized in that the piston cylinder comprises:

[0007] A base is provided with a positioning bolt;

[0008] A cylinder wall is arranged above the base and is clamped with the base;

[0009] An upper cover is clamped on the top of the cylinder wall, and a pressure regulating hole is formed in the top of the upper cover.

[0010] Preferably, the valve body is provided with a valve body, and the inner side of the valve body is provided with a valve seat.

[0011] Preferably, the valve body is provided with a valve cover, the valve cover is connected with the valve body through bolts, the inner side of the valve cover is provided with a sealing packing, the top of the valve cover is provided with a gland, and the gland is connected with the valve cover through bolts.

[0012] Preferably, the valve body is provided with a valve stem, the valve stem is inserted into the inner side of the gland and the sealing packing, the bottom of the valve stem is connected with a valve core, the top of the valve core is connected with a bellows, the bellows is sealingly connected with the valve cover, and the bottom of the valve core is connected with a sealing gasket, and the sealing gasket abuts against the valve seat.

[0013] Preferably, the bracket is provided with a bracket rod and a connecting piece, the bottom of the bracket rod is inserted with a connecting bolt connected with the valve cover, the bottom of the connecting piece is connected with the valve stem, and the outer side of the connecting piece is connected with a clamping block.

[0014] Preferably, the inner side of the base is inserted with a push rod, the outer side of the push rod is sleeved with a shaft sleeve, the shaft sleeve is clamped at the bottom of the base, and the push rod is connected at the top of the connecting piece.

[0015] Preferably, the outer side of the upper cover is inserted with a screw rod, the screw rod is inserted into the inner side of the base, the inner sides of the base, the cylinder wall and the upper cover are provided with springs, the bottom of the spring is connected with a piston, and the piston is sleeved at the top of the push rod.

[0016] The utility model discloses a chlorine special valve compares with prior art, the utility model has the beneficial effects that: through the sealing packing of the inner side of the valve cover, the compression of the gland and the sealing connection of the bellows at the top of the valve core and the valve cover, plus the close abutment of the sealing gasket at the bottom of the valve core and the valve seat, multiple sealing structures effectively prevent the leakage of chlorine, and the sealing performance of the valve is improved.

[0017] The valve body, valve seat, valve core and other components are made of corrosion-resistant materials suitable for chlorine environment, and the piston cylinder and other structures adopt reasonable sealing and protection design, which reduces the corrosion of chlorine on the internal structure and prolongs the service life of the valve.

[0018] The stable connection of the bracket and the valve cover, the guidance and limitation of the clamping block outside the connecting piece to the movement of the valve stem, and the buffering effect of the spring in the piston cylinder to the movement of the piston make the valve more stable during operation, reduce shaking and impact, and improve the accuracy and reliability of operation.

[0019] Through the pressure regulating hole, the pressure in the piston cylinder can be quickly changed with the help of external control device, the emergency closing of the valve is realized, sudden situations are effectively coped with, and production safety is guaranteed. DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the utility model;

[0021] Figure 2 It is a valve main body structure schematic view of the utility model;

[0022] Figure 3 It is a support structure schematic view of the utility model;

[0023] Figure 4 It is a piston cylinder structure schematic view of the utility model.

[0024] In the drawing: 1, valve main body;11, valve body;111, valve seat;12, valve cover;121, sealing packing;122, gland;13, valve stem;131, valve core;132, bellows;133, sealing gasket;2, support;21, support rod;211, connecting bolt;22, connecting piece;221, clamping block;3, piston cylinder;31, base;311, positioning bolt;312, push rod;313, shaft sleeve;32, cylinder wall;33, upper cover;331, pressure regulating hole;332, screw;333, spring;334, piston. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0026] The application provides a chlorine special valve, which solves the problem of unreasonable sealing structure between the valve core and the valve seat, which is easy to cause chlorine leakage, not only causing raw material waste, but also threatening the safety of the environment and the operator. The strong corrosive nature of chlorine makes the service life of ordinary valves shorter, increasing the production cost and maintenance workload. In addition, in the face of emergency situations, the existing one-way valve is difficult to achieve rapid and reliable emergency closing, which improves the service life, safety and emergency response capability of the valve.

[0027] The utility model discloses a chlorine special valve.

[0028] Embodiment one

[0029] According to the drawing Figures 1-4 As shown, it comprises a valve main body 1, a support 2 and a piston cylinder 3, the support 2 is located above the valve main body 1, the piston cylinder 3 is located above the support 2, and the piston cylinder 3 comprises:

[0030] The base 31 is provided with a positioning bolt 311 on the base 31;

[0031] The cylinder wall 32 is arranged above the base 31 and is clamped with the base 31;

[0032] The upper cover 33 is clamped at the top of the cylinder wall 32, and a pressure regulating hole 331 is arranged at the top of the upper cover 33.

[0033] Through the compression of the sealing packing 121 inside the valve cover 12, the compression cover 122, and the sealing connection of the corrugated pipe 132 at the top of the valve core 131 with the valve cover 12, and the close abutment of the sealing gasket 133 at the bottom of the valve core 131 with the valve seat 111, the multiple sealing structure effectively prevents the leakage of chlorine gas and improves the sealing performance of the valve;

[0034] The valve body 11, the valve seat 111, the valve core 131 and other components are made of corrosion-resistant materials suitable for chlorine gas environment, and the piston cylinder 3 and other structures adopt reasonable sealing and protection design, which reduces the corrosion of chlorine gas to the internal structure and prolongs the service life of the valve;

[0035] The stable connection of the support 2 with the valve cover 12, the guidance and limitation of the clamping block 221 outside the connecting piece 22 to the movement of the valve rod 13, and the buffering effect of the spring 333 inside the piston cylinder 3 to the movement of the piston 334 make the valve more stable during operation, reduce shaking and impact, and improve the accuracy and reliability of operation;

[0036] Through the pressure regulating hole 331, the pressure in the piston cylinder 3 can be quickly changed with the help of external control devices to realize emergency closing of the valve, effectively deal with unexpected situations and ensure production safety.

[0037] Further, the valve body 1 is provided with a valve body 11, and the inside of the valve body 11 is provided with a valve seat 111.

[0038] Further, the valve body 1 is provided with a valve cover 12, the valve cover 12 is connected with the valve body 11 through bolts, the inside of the valve cover 12 is provided with a sealing packing 121, and the top of the valve cover 12 is provided with a compression cover 122, the compression cover 122 is connected with the valve cover 12 through bolts.

[0039] In particular, the valve body 1 is provided with a valve rod 13, the valve rod 13 is inserted inside the compression cover 122 and the sealing packing 121, the bottom of the valve rod 13 is connected with a valve core 131, the top of the valve core 131 is connected with a corrugated pipe 132, the corrugated pipe 132 is sealingly connected with the valve cover 12, the bottom of the valve core 131 is connected with a sealing gasket 133, and the sealing gasket 133 abuts with the valve seat 111.

[0040] In particular, the support 2 is provided with a support rod 21 and a connecting piece 22, the bottom of the support rod 21 is inserted with a connecting bolt 211 connected with the valve cover 12, the bottom of the connecting piece 22 is connected with the valve rod 13, and the outside of the connecting piece 22 is connected with a clamping block 221.

[0041] Need to emphasize particularly, the base 31 inside plug-in push rod 312, push rod 312 outside sleeve joint shaft sleeve 313, shaft sleeve 313 clamped in the bottom of the base 31, push rod 312 connected to the top of the connecting member 22.

[0042] Example two

[0043] According to the Figures 1-4 As shown, including the valve body 1, bracket 2 and piston cylinder 3, bracket 2 is located above the valve body 1, piston cylinder 3 is located above the bracket 2, piston cylinder 3 includes:

[0044] Base 31, the base 31 on the plug-in positioning bolt 311;

[0045] Cylinder wall 32, cylinder wall 32 is provided above the base 31 and is clamped with the base 31;

[0046] Upper cover 33, upper cover 33 clamped in the top of the cylinder wall 32, upper cover 33 top opening has a pressure regulating hole 331.

[0047] Need to emphasize particularly, the upper cover 33 outside plug-in screw rod 332, screw rod 332 plug-in inside the base 31, the inside of the base 31, cylinder wall 32 and upper cover 33 are provided with spring 333, spring 333 bottom connected with the piston 334, piston 334 sleeve joint in the top of the push rod 312.

[0048] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. The skilled person in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. Chlorine valve, comprising a valve body (1), a bracket (2) and a piston cylinder (3), the bracket (2) being located above the valve body (1), the piston cylinder (3) being located above the bracket (2), characterized in that, The piston cylinder (3) comprises: A base (31) with a positioning bolt (311) inserted thereon; A cylinder wall (32) arranged above the base (31) and clamped with the base (31); An upper cover (33) clamped on the top of the cylinder wall (32), and a pressure regulating hole (331) is formed on the top of the upper cover (33).

2. The chlorine-only valve of claim 1, wherein, The valve body (1) is provided with a valve body (11), and the inner side of the valve body (11) is provided with a valve seat (111).

3. The chlorine-only valve of claim 2, wherein, The valve body (1) is provided with a valve cover (12), which is connected with the valve body (11) through bolts, and the inner side of the valve cover (12) is provided with a sealing packing (121), and the top of the valve cover (12) is provided with a gland (122), which is connected with the valve cover (12) through bolts.

4. The chlorine-only valve of claim 3, wherein, The valve body (1) is provided with a valve stem (13), which is inserted into the inner side of the gland (122) and the sealing packing (121), and the bottom of the valve stem (13) is connected with a valve core (131), and the top of the valve core (131) is connected with a bellows (132), which is sealingly connected with the valve cover (12), and the bottom of the valve core (131) is connected with a sealing gasket (133), which is abutted with the valve seat (111).

5. The chlorine-only valve of claim 4, wherein, The bracket (2) is provided with a bracket rod (21) and a connecting piece (22), the bottom of the bracket rod (21) is inserted with a connecting bolt (211) connected with the valve cover (12), and the bottom of the connecting piece (22) is connected with the valve stem (13), and the outer side of the connecting piece (22) is connected with a clamping block (221).

6. The chlorine-only valve of claim 5, wherein, The inner side of the base (31) is inserted with a push rod (312), the outer side of the push rod (312) is sleeved with a shaft sleeve (313), the shaft sleeve (313) is clamped on the bottom of the base (31), and the push rod (312) is connected on the top of the connecting piece (22).

7. The chlorine-only valve of claim 6, wherein, The outer side of the upper cover (33) is inserted with a screw rod (332), the screw rod (332) is inserted into the inner side of the base (31), the inner sides of the base (31), the cylinder wall (32) and the upper cover (33) are provided with springs (333), the bottom of the spring (333) is connected with a piston (334), and the piston (334) is sleeved on the top of the push rod (312).

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