CN211574767U

CN211574767U - Special fixture for chlorine steel cylinder valve

Info

Publication number: CN211574767U
Application number: CN201922306735.8U
Authority: CN
Inventors: 李平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-09-25
Anticipated expiration: 2029-12-20

Abstract

The utility model provides a special fixture for chlorine steel cylinder valves, which comprises a fixture body and a copper tube with movable joints at two ends, wherein the fixture body comprises a tensioning seat, a clamping seat, a movable seat and a guide post, one end of the guide post is fixedly connected with the clamping seat, the other end of the guide post is fixedly connected with the tensioning seat, the movable seat is positioned between the tensioning seat and the clamping seat, the movable seat is slidably connected with the guide post, the tensioning seat is in threaded connection with a tensioning bolt, the screw end of the tensioning bolt is abutted against the movable seat after penetrating through the tensioning seat, a valve body is arranged on the clamping seat in a penetrating way, the valve body is provided with an air inlet joint and an air outlet joint, the air outlet joint is used for being connected with the copper tube, the air inlet joint is provided with a needle valve and a sealing gasket sleeved outside the needle valve, when the fixture body clamps the valve body, the needle valve of the air inlet joint is inserted into, the sealing gasket is used for sealing the contact part of the air inlet joint and the valve outlet joint.

Description

Special fixture for chlorine steel cylinder valve

Technical Field

The utility model discloses can be used to chemical production, use fields such as chlorine enterprise, also can be used to other acid gas steel cylinder valves and form a complete set and use, concretely relates to chlorine steel cylinder valve special fixture.

Background

In the place where the liquid chlorine is used, chlorine gas with a certain concentration exists in the air due to the inevitable escape of the chlorine gas, and the chlorine gas reacts with water contained in the air to generate hydrogen chloride, hypochlorous acid and the like, so that equipment and facilities have certain corrosion effects. At present, liquid chlorine using units generally adopt a steel cylinder connected with two ends of a red copper pipe in a loose joint way and a chlorine system busbar to connect and convey chlorine to a chlorine production device. Wherein, the connecting ends of the chlorine system bus bar are connected by loose joint, generally, the basic fixation is not needed to be disassembled, and the screw thread at the connecting part is also protected. The other end of the copper pipe is connected with the steel cylinder valve and needs to be frequently disassembled, and the inner loose joint wire of the copper pipe and the outer wire of the steel cylinder valve are firmly meshed so as to convey chlorine to a bus bar, a chlorine regulating system, a chlorination system and the like. Whether the inner wire of the movable joint of the copper pipe is firmly meshed with the outer wire of the steel cylinder valve or not determines whether chlorine leakage or even safety accidents occur or not. Under normal conditions, the steel cylinder valve is repeatedly disassembled and assembled for many times during filling, the environment where the steel cylinder valve is stored is corroded, and the like, which may damage the screw thread, so that the outer screw thread of the outlet connector of the steel cylinder valve cannot meet the requirement of firm engagement with the inner thread of the movable joint of the chlorine transmission copper pipe, and further, the leakage dangerous case may occur. The screw thread is a screw thread connection, which is a connection mode in pipeline installation, and the screw thread connection is also called a threaded connection, and is used for connecting a pipeline and a pipeline as well as a pipeline and a valve through internal and external threads. The connection is mainly used for the connection between steel pipes and copper pipes and between high-pressure pipelines, pipe fittings and valves.

Therefore, for those skilled in the art, it is of practical significance to provide a clamp special for a chlorine cylinder valve to solve the problem of chlorine leakage accidents caused by the damage of the screw thread of the chlorine cylinder valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and the purpose of the utility model is to provide a special fixture for chlorine steel cylinder valves to improve the problem of chlorine leakage accidents caused by thread damage of chlorine steel cylinder valves.

In order to solve the problems, the utility model provides a special fixture for a chlorine steel cylinder valve, the chlorine steel cylinder valve comprises a valve body and a valve outlet joint arranged on the valve body, the special fixture comprises a fixture body and a red copper pipe with movable joints at two ends, the fixture body comprises a tensioning seat, a clamping seat, a movable seat and a guide post, one end of the guide post is fixedly connected with the clamping seat, the other end of the guide post is fixedly connected with the tensioning seat, the movable seat is positioned between the tensioning seat and the clamping seat, the movable seat is in sliding connection with the guide post, the tensioning seat is in threaded connection with a tensioning bolt, the screw end of the tensioning bolt is abutted against the movable seat after penetrating through the tensioning seat, a valve body is penetrated through the clamping seat, the valve body is provided with an air inlet joint and an air outlet joint, the air outlet joint is used for being connected with the red copper pipe, the air inlet connector is used for being connected with the valve outlet connector, the air inlet connector is provided with a needle valve and a sealing washer, the sealing washer is sleeved on the outer side of the needle valve, a clamping area for clamping the valve body is formed by enclosing the clamping seat, the movable seat and the guide column, the valve body is clamped by the clamp body, the needle valve of the air inlet connector is inserted into the valve outlet connector, and the sealing washer is used for sealing the contact position of the air inlet connector and the valve outlet connector.

As a further improvement of the special clamp for the chlorine steel cylinder valve, the movable seat is provided with an arc-shaped surface matched with the shape of the valve body.

As a further improvement of the special clamp for the chlorine steel cylinder valve, the sealing gasket is a polytetrafluoroethylene sealing gasket.

As a further improvement of the special clamp for the chlorine steel cylinder valve, two guide columns are arranged.

As a further improvement of the special clamp for the chlorine steel cylinder valve, the clamp body is made of 304 stainless steel.

As a further improvement of the special clamp for the chlorine steel cylinder valve, the sealing washer comprises a conical sealing ring, the inner wall of the conical sealing ring is in sealing butt joint with the outer wall of the needle valve, and the outer wall of the conical sealing ring is in sealing butt joint with the inner wall of the valve outlet connector.

As a further improvement of the special clamp for the chlorine steel cylinder valve, the sealing washer comprises an end face sealing washer, and the end face sealing washer is in sealing abutting joint with the end face of the valve outlet connector.

As a further improvement of the special clamp for the chlorine steel cylinder valve, the end face sealing ring and the conical sealing ring are integrally formed.

As a further improvement of the special clamp for the chlorine steel cylinder valve, the inner wall of the valve outlet connector is a conical surface matched with the outer wall of the conical sealing ring in shape.

As a further improvement of the special clamp for the chlorine steel cylinder valve, the nut end of the tensioning bolt is a hexagonal nut.

The utility model discloses a chlorine steel cylinder valve special fixture, special fixture cliies chlorine steel cylinder valve chlorine transmission, contactless steel cylinder valve screw thread, do not damage the valve screw thread, also need not the valve screw thread to satisfy the firm requirement of meshing, can be comparatively thorough get rid of the emergence of the impaired chlorine leakage accident that leads to of steel cylinder valve screw thread, once drop into the back anchor clamps main part under the condition that satisfies operation requirement, almost can permanent use, the annex also can use for a plurality of years, improve the problem that the impaired chlorine leakage accident that leads to of steel cylinder valve screw thread in the past takes place. The utility model discloses simple process, processing is convenient, and the assembly is easy, does not harm the steel cylinder valve and can effectively ensure gaseous service unit safety, reduces accident probability, reduces maintenance work load, and the reduction is produced into wood.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a first embodiment of the special fixture for a chlorine steel cylinder valve of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the special fixture for chlorine steel cylinder valves of the present invention.

In the drawings:

1-copper tube 2-tensioning seat 3-clamping seat

4-movable seat 5-guide column 6-tensioning bolt

10-sealing washer 11-conical sealing washer 12-end face sealing washer

7-valve body 8-needle valve

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the appearing terms is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that unless otherwise explicitly specified and limited, the specific meaning of the above terms in the present invention can be specifically understood by those of ordinary skill in the art.

Referring to fig. 1 to 2, the special fixture for the chlorine steel cylinder valve (not shown in the figures) comprises a valve body (not shown in the figures) and a valve outlet connector (not shown in the figures) arranged on the valve body, the special fixture comprises a fixture body and a copper tube 1 with two loose joints at two ends, the fixture body comprises a tensioning seat 2, a clamping seat 3, a movable seat 4 and a guide post 5, one end of the guide post 5 is fixedly connected with the clamping seat 3, the other end of the guide post 5 is fixedly connected with the tensioning seat 2, the movable seat 4 is located between the tensioning seat 2 and the clamping seat 3, the movable seat 4 is slidably connected with the guide post 5, a tensioning bolt 6 is connected with the tensioning seat 2 through a thread, and a screw end of the tensioning bolt 6 is abutted to the movable seat 4 after penetrating through the tensioning seat 2, wear to be equipped with valve body 7 on the grip slipper 3, valve body 7 has air inlet connector and exhaust joint, the exhaust joint is used for being connected with copper tubing 1, air inlet connector is used for being connected with valve outlet joint, air inlet connector department is equipped with needle valve 8 and overlaps and establish the seal ring 10 in the needle valve 8 outside, enclose between grip slipper 3, sliding seat 4 and the guide post 5 and close the centre gripping region who forms centre gripping valve body, at the centre gripping of anchor clamps body during the valve body, air inlet connector's needle valve 8 inserts valve outlet joint, seal ring 10 is used for sealing air inlet connector with valve outlet joint's contact department. The valve body 7 is fixedly arranged on the clamping seat 3, the air inlet joint and the air outlet joint are communicated with each other, a valve core of the needle valve 8 is a sharp cone, the movable seat 4 can freely move along the axial direction of the guide pillar when the tensioning bolt 6 is far away from the movable seat 4, and the tensioning bolt 6 and the valve body limit the axial movement of the guide pillar together when the clamp body clamps the valve body.

When the chlorine filling clamp is used, one end of a copper tube 1 is connected with an exhaust joint of the clamp body, the other end of the copper tube 1 is connected with a chlorine system bus bar, then the clamp body is moved to a chlorine steel cylinder valve, so that the valve body is positioned in a clamping area, an air inlet joint is connected with a valve outlet joint, a needle valve 8 of the air inlet joint is inserted into the valve outlet joint, a sealing gasket 10 is used for sealing the contact position of the air inlet joint and the valve outlet joint, a tensioning bolt 6 is twisted, the tensioning bolt 6 drives a movable seat 4 to move along a guide column 5, a clamping seat 3 is relatively close to the movable seat 4, and therefore the valve body is clamped, the sealing gasket 10 at the joint surface of the air inlet joint and the valve outlet joint is pressed, and the purpose that the joint surface of the air inlet joint and the valve outlet joint.

Generally, the thread condition of the steel cylinder valve can not meet the meshing requirement and can not be completely identified through visual observation, and the requirement of reliable use caused by complete thread connection is determined due to corrosion, damage in the normal use process and the like during normal filling, use and the like. The utility model discloses a chlorine steel cylinder valve special fixture, special fixture cliies chlorine steel cylinder valve chlorine transmission, contactless steel cylinder valve screw thread, do not damage the valve screw thread, also need not the valve screw thread to satisfy the firm requirement of meshing, can be comparatively thorough get rid of the emergence of the impaired chlorine leakage accident that leads to of steel cylinder valve screw thread, once drop into the back anchor clamps main part under the condition that satisfies operation requirement, almost can permanent use, the annex also can use for a plurality of years, improve the problem that the impaired chlorine leakage accident that leads to of steel cylinder valve screw thread in the past takes place. The utility model discloses simple process, processing is convenient, and the assembly is easy, does not harm the steel cylinder valve and can effectively ensure gaseous service unit safety, reduces accident probability, reduces maintenance work load, and the reduction is produced into wood.

In order to cooperate with the clamping seat 3 to better hold the valve body, the movable seat 4 is provided with an arc-shaped surface matched with the shape of the valve body. In order to facilitate screwing of the tensioning bolt, the nut end of the tensioning bolt is a hexagonal nut.

Specifically, optionally, the sealing gasket 10 is a teflon sealing gasket. The polytetrafluoroethylene has the advantages of low friction coefficient, wear resistance, chemical corrosion resistance, good sealing property, no hydrolysis, no hardening and the like. In the embodiment, the valve outlet connector is opposite to the inlet of the needle valve 8, the joint surface is sealed by a tetrafluoroethylene gasket, the outlet of the steel cylinder valve is connected with the air passing channel of the needle valve 8, and a channel for conveying chlorine to a chlorine system bus bar is further formed by externally connecting the red copper tube 1 and a slipknot at the other end of the red copper tube 1.

Specifically optionally, the guide posts 5 are provided with two, and a clamping area for clamping the valve body is formed by enclosing the clamping seat 3, the movable seat 4 and the two guide posts 5.

Specifically, optionally, the clamp body is made of 304 stainless steel, the 304 stainless steel is a common material in stainless steel, the density is 7.93g/cm3, and the clamp body is also called 18/8 stainless steel in the industry. The high temperature resistant 800 ℃, has the characteristics of good processing performance and high toughness, and is widely used in industry, furniture decoration industry and food medical industry. 304 stainless steel is a versatile stainless steel that is widely used for manufacturing equipment and parts that require good balance of corrosion resistance and formability. In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain 18% or more of chromium and 8% or more of nickel. 304 stainless steel is a grade of stainless steel produced in accordance with the ASTM standard in the united states. It should be noted that, the anchor clamps body can not annealing when adopting 304 stainless steel preparation to influence component intensity, the utility model discloses a chlorine steel cylinder valve special fixture except using the chlorine steel bottle to fill dress, supporting use when gas transmission, can also use when filling dress, gas transmission at acid gas steel cylinders such as sulfur dioxide, sulfur trioxide.

In a specific embodiment, the sealing gasket 10 comprises a conical sealing ring 11, an inner wall of the conical sealing ring 11 is in sealing abutment with an outer wall of the needle valve 8, and an outer wall of the conical sealing ring 11 is in sealing abutment with an inner wall of the valve outlet connector. Wherein, needle valve 8 has the toper case, taper seal ring 11 with the sealed butt of the toper case of needle valve 8, taper seal ring 11 can make needle valve 8 insert valve outlet connector more smoothly, and the installation is convenient simple more, effectively raises the efficiency. Preferably, the sealing washer 10 includes an end face sealing washer 12, and the end face sealing washer 12 is in sealing contact with an end face of the valve outlet connector. The conical sealing ring 11 plays a role in first-layer sealing protection; the end face seal ring 12 plays a role in second-layer sealing protection, double-layer sealing is achieved, the sealing effect can be effectively guaranteed, and potential safety hazards such as leakage are avoided. More preferably, the taper seal ring 11 and the end seal ring 12 are integrally formed. Specifically, optionally, the inner wall of the valve outlet joint is a conical surface matched with the outer wall of the conical sealing ring 11 in shape.

To sum up, the utility model discloses a chlorine steel cylinder valve special fixture, special fixture clip chlorine steel cylinder valve chlorine transmission, contactless steel cylinder valve screw thread does not damage the valve screw thread, also need not the valve screw thread to satisfy the firm requirement of meshing, can be comparatively thorough get rid of the emergence of the impaired chlorine leakage accident that leads to of steel cylinder valve screw thread, once drop into back anchor clamps main part under the condition that satisfies the operation requirement, almost can the permanent use, the annex also can use for many years, improve the problem that the impaired chlorine leakage accident that leads to of chlorine steel cylinder valve screw thread took place in the past. The utility model discloses simple process, processing is convenient, and the assembly is easy, does not harm the steel cylinder valve and can effectively ensure gaseous service unit safety, reduces accident probability, reduces maintenance work load, and the reduction is produced into wood.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a chlorine steel bottle valve special fixture, chlorine steel bottle valve includes the valve body and establishes the valve outlet joint on the valve body, its characterized in that: the special fixture comprises a fixture body and a copper tube (1) with loose joints at two ends, the fixture body comprises a tensioning seat (2), a clamping seat (3), a movable seat (4) and a guide column (5), one end of the guide column (5) is fixedly connected with the clamping seat (3), the other end of the guide column (5) is fixedly connected with the tensioning seat (2), the movable seat (4) is positioned between the tensioning seat (2) and the clamping seat (3), the movable seat (4) is slidably connected with the guide column (5), the tensioning seat (2) is in threaded connection with a tensioning bolt (6), the screw end of the tensioning bolt (6) is inserted into the tensioning seat (2) and abutted against the movable seat (4), a valve body (7) is inserted into the clamping seat (3), the valve body (7) is provided with an air inlet joint and an exhaust joint, and the exhaust joint is used for being connected with the copper tube (1), the utility model discloses a valve, including inlet connection, seal ring (10), clamping holder (3), sliding seat (4) and guide post (5), inlet connection department is equipped with needle valve (8) and overlaps and establish seal ring (10) in the needle valve (8) outside, enclose between clamping holder (3), sliding seat (4) and guide post (5) and close the centre gripping region that forms the centre gripping valve body, at the centre gripping of anchor clamps body during the valve body, inlet connection's needle valve (8) insert valve outlet connection, seal ring (10) are used for sealing inlet connection with valve outlet connection's contact department.

2. The special clamp for the chlorine steel cylinder valve according to claim 1, wherein: the movable seat (4) is provided with an arc-shaped surface matched with the valve body in shape.

3. The special clamp for the chlorine steel cylinder valve according to claim 1, wherein: the sealing washer (10) is a polytetrafluoroethylene sealing washer.

4. The special clamp for the chlorine steel cylinder valve according to claim 1, wherein: the number of the guide columns (5) is two.

5. The special clamp for the chlorine steel cylinder valve as claimed in any one of claims 1 to 4, wherein: the clamp body is made of 304 stainless steel.

6. The special clamp for the chlorine steel cylinder valve as claimed in any one of claims 1 to 4, wherein: the sealing washer (10) comprises a conical sealing ring (11), the inner wall of the conical sealing ring (11) is in sealing butt joint with the outer wall of the needle valve (8), and the outer wall of the conical sealing ring (11) is in sealing butt joint with the inner wall of the valve outlet connector.

7. The special clamp for the chlorine steel cylinder valve according to claim 6, wherein: the sealing washer (10) comprises an end face sealing ring (12), and the end face sealing ring (12) is in sealing butt joint with the end face of the valve outlet connector.

8. The special clamp for the chlorine steel cylinder valve according to claim 7, wherein: the end face sealing ring (12) and the conical sealing ring (11) are integrally formed.

9. The special clamp for the chlorine steel cylinder valve according to claim 6, wherein: the inner wall of the valve outlet joint is a conical surface matched with the outer wall of the conical sealing ring (11) in shape.

10. The special clamp for the chlorine steel cylinder valve as claimed in any one of claims 1 to 4, wherein: the nut end of the tensioning bolt (6) is a hexagonal nut.