CN113833885A - PTFE (polytetrafluoroethylene) lined abruption valve - Google Patents

PTFE (polytetrafluoroethylene) lined abruption valve Download PDF

Info

Publication number
CN113833885A
CN113833885A CN202111162283.6A CN202111162283A CN113833885A CN 113833885 A CN113833885 A CN 113833885A CN 202111162283 A CN202111162283 A CN 202111162283A CN 113833885 A CN113833885 A CN 113833885A
Authority
CN
China
Prior art keywords
valve
core
cavity
valve body
lined
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111162283.6A
Other languages
Chinese (zh)
Inventor
杨善德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202111162283.6A priority Critical patent/CN113833885A/en
Publication of CN113833885A publication Critical patent/CN113833885A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
    • F16K17/403—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint with a fracturing valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/44—Details of seats or valve members of double-seat valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F16K1/465—Attachment of sealing rings to the valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/04—Arrangements for preventing erosion, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)

Abstract

The invention discloses a PTFE lining snapping valve, which comprises a pair of valve bodies and hoops, wherein the valve bodies are symmetrically arranged and can be connected through the hoops; the valve body is internally provided with a valve cavity, the inner wall of the valve cavity is lined with PTFE materials, the valve cavity is internally provided with a core seat and a valve core, the core seat and the valve core are made of PTFE materials, the core seat is embedded in the valve cavity, and the valve core is connected to the core seat through a spring; in a normal state, the hoop is locked, the valve cores of the valve bodies are mutually abutted, the valve cores are far away from the wall of the valve cavity, and a channel for fluid to pass is reserved; when the valve body is in a snapping state, the hoop is opened, the valve core of the valve body is separated, and the valve core is driven by the spring to tightly press the cavity wall of the valve cavity to cut off the channel. In the invention, a part of a medium path in the valve is positioned in the valve hole of the valve core seat, and a part of the medium path is positioned in the channel, so that when the valve core is pulled off in an emergency, only the spring is needed to drive the valve core to act, the channel is blocked, and the action is rapid; the inner wall of the valve cavity is lined with a tetrafluoro material, and the core seat and the valve core are made of tetrafluoro material, so that the corrosion resistance effect is excellent.

Description

PTFE (polytetrafluoroethylene) lined abruption valve
Technical Field
The invention belongs to the technical field of a snapping valve, and particularly relates to a teflon-lined snapping valve.
Background
In order to ensure the safety of material loading and unloading, a breaking valve is required to be arranged when the materials are loaded and unloaded between a tank car, a railway tank transport and a ship opposite shore, and the mechanical principle is as follows: the device is characterized in that a steel wire rope is arranged, one end of the steel wire rope is fastened on the breaking valve along the direction of loading and moving of the loading arm, the other end of the steel wire rope is fixed on a terrace or a thick pipeline, the limit extension length of the steel wire rope is certainly shorter than the limit length of the loading arm, therefore, when a vehicle or a ship moves accidentally, the steel wire rope is ensured to be tightened in advance, the breaking valve is triggered before the pipeline is stressed, the breaking valve is divided into two parts, the separation section is closed instantly, the leakage accident is avoided, the personal safety of operators is protected, and the environmental pollution is avoided.
Most of the existing breaking valves are made of stainless steel or aluminum, but the metal is not corrosion-resistant, is easy to corrode when flowing through corrosive media such as liquid chlorine, acid and alkali, and cannot be used.
Disclosure of Invention
The invention provides a teflon-lined stretch-break valve aiming at the current defects.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the teflon-lined stretch-break valve is characterized by comprising a pair of valve bodies and hoops, wherein the valve bodies are symmetrically arranged and can be connected through the hoops;
the valve comprises a valve body, a valve core seat, a valve core, a valve hole and a valve core, wherein the valve cavity is formed in the valve body, the inner wall of the valve cavity is lined with a polytetrafluoroethylene material, one end of the valve cavity is provided with a first valve port, the valve core is internally provided with the valve core seat and the valve core, the valve core seat and the valve core are made of the polytetrafluoroethylene material, the valve core seat is embedded in the valve cavity, the valve core is connected to the valve core seat through a spring, the valve core seat is provided with the valve hole, the valve core faces the valve port, and the maximum diameter of the valve core is larger than the valve port and smaller than the inner diameter of the valve cavity;
in a normal state, the hoop is locked, the valve cores of the valve body are mutually abutted, the valve cores are far away from the wall of the valve cavity, and a channel for fluid to pass through is reserved;
when the valve body is in a snapping state, the hoop is opened, the valve core of the valve body is separated, and the valve core is tightly abutted against the wall of the valve cavity under the driving of the spring to cut off the channel.
Preferably, the valve cavity has two small ends and a large middle, the valve body comprises a first valve body and a second valve body which are connected in a involutory manner, and the valve cavity comprises a first cavity part arranged in the first valve body and a second cavity part arranged in the second valve body.
Preferably, the core seat is columnar, the valve hole comprises a hollow cavity and a flow distribution hole, the hollow cavity extending inwards along the axis is formed in one end of the core seat, one end of the flow distribution hole is communicated with the hollow cavity, and the other end of the flow distribution hole is formed in the side edge of the valve core.
Preferably, a spring cylinder is arranged on the end face of the other end of the core print, an accommodating hole is formed in the valve core, and the spring is inserted into the spring cylinder and is inserted into the accommodating hole.
Preferably, a limiting check ring is arranged on the end face of the other end of the valve core seat, and one end of the valve core is arranged in the limiting check ring.
Preferably, the valve core is shaped like a top and comprises a large head and a small head, the large head faces the valve core seat, and the small head faces the valve port.
Preferably, a circle of sealing ring is arranged on the valve core; and/or reverse clamping sealing rings are arranged on the connecting end surfaces of the valve bodies; and/or a circle of sealing ring is arranged on the connecting surface of the first valve body and the second valve body.
Preferably, the first valve body comprises a first valve body, one end of the first valve body is provided with the first valve port, and the end is provided with a circle of convex ribs matched with the hoop; the other end of the first valve body is provided with the first cavity part, a first flange is arranged at the other end of the first valve body, the first valve port is communicated with the first cavity part, and the diameter of the first valve port is smaller than that of the first cavity part.
Preferably, the second valve body comprises a second valve body, one end of the second valve body is provided with a second valve port, and the end is provided with a pipeline flange; the other end of the second valve body is provided with the second cavity part, and a second flange is arranged on the end of the second cavity part; the second valve port is communicated with the second cavity part, and the diameter of the second valve port is smaller than that of the second cavity part.
Preferably, any one of the valve cores in the pair of valve bodies is provided with a limiting bulge, the other valve core is provided with a limiting groove, and when the valve cores are abutted tightly, the limiting bulge is clamped in the limiting groove.
The technical scheme can obtain the following beneficial effects:
the invention connects a pair of valve bodies oppositely, a core seat and a valve core are arranged in a valve cavity of the valve bodies, the valve core and the core seat are made separately and connected through a spring, a valve hole is arranged on the core seat, when in normal use, the valve cores of the two valve bodies are abutted, the spring is compressed, a channel allowing a medium to flow is formed between the valve core and the inner wall of the valve cavity, the valve hole is communicated with the channel, and the medium flows through the valve holes and the channel of the two valve bodies and smoothly passes through the abruption valve; when the vehicle or ship moves accidentally, the hoop of the breaking valve is broken, the two valve bodies and the valve cores are separated, the spring is released, the valve cores are driven to tightly abut against the inner wall of the valve cavity, the channel is closed, the medium is not allowed to flow through, and the effect of emergency plugging is achieved. When the valve is broken in an emergency, only the spring is needed to drive the valve core to act, the channel is blocked, and the action is rapid; the inner wall of the valve cavity is lined with the tetrafluoro material, the core seat and the valve core are made of the tetrafluoro material, the corrosion resistance effect is excellent, and the processing is easier compared with the surface of a metal material.
Drawings
FIG. 1 is a schematic view of the present invention in a normal state.
Fig. 2 is a schematic view of the invention in a snap-off state.
Fig. 3 is a schematic view of a first valve body of the present invention.
Fig. 4 is a schematic view of a second valve body of the present invention.
Fig. 5 is a schematic view of the valve core and the valve core seat of the invention.
In the figure:
1. the valve comprises a valve body, 11, a first valve body, 111, a first valve body, 112, a first flange plate, 113, a hoop convex rib, 114, a first valve port, 12, a second valve body, 121, a second valve body, 122, a pipeline flange plate, 123, a second flange plate, 124, a second valve port, 13, a valve cavity, 131, a first cavity part, 1311, a transition conical surface, 132, a second cavity part, 14, a polytetrafluoroethylene material, 2, a hoop, 3, a valve core, 31, a small head, 311, a limiting groove, 32, a large head, 33, a conical surface, 34, an accommodating hole, 4, a core seat, 41, a spring, 411, a hollow cavity, 412, a diversion hole, 42, a limiting retainer ring, 43, a spring cylinder, 5, a spring, 6, a sealing ring, 7, a sealing ring, 8, an anti-clamping sealing ring, 9 and a channel.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1-2, the invention discloses a teflon-lined stretch-break valve, which comprises a pair of valve bodies 1 and hoops 2, wherein the valve bodies 1 are symmetrically arranged and can be connected through the hoops 2.
The valve body 1 is internally provided with a valve cavity 13, the inner wall of the valve cavity 13 is lined with PTFE material, one end of the valve cavity is provided with a first valve port 114, the valve cavity is internally provided with a core seat and a valve core, the core seat and the valve core are made of PTFE material 14, the core seat 4 is embedded in the valve cavity 13, the valve core 3 is connected to the core seat 4 through a spring 5, the core seat 4 is provided with a valve hole 41, the valve core 3 faces the first valve port 114, and the maximum diameter of the valve core 3 is larger than the first valve port 114 and smaller than the inner diameter of the valve cavity 13.
In a normal state, the hoop 2 is locked, the valve cores 3 of the valve body are mutually abutted, and the valve cores 3 are far away from the cavity wall of the valve cavity 13 to leave a channel 9 for fluid to pass through.
When the valve is in a snapping state, the hoop 2 is opened, as shown in fig. 2, the valve core 3 of the valve body is separated, the valve core 3 is pushed by the spring 5 to tightly press the cavity wall of the valve cavity 13, and the channel 9 is cut off.
The valve cavity 13 has two small ends and a large middle, the valve body 1 comprises a first valve body 11 and a second valve body 12 which are connected in an involutory manner, and the valve cavity 13 comprises a first cavity part 131 arranged in the first valve body 11 and a second cavity part 132 arranged in the second valve body 12. The first and second valve bodies 11, 12 are connected in a matching manner to form a complete valve cavity 13. The valve body 1 is separated from the middle, the valve body is divided into two parts for split manufacturing, the core seat 4 and the valve core 3 are placed into the valve body 1 from the middle large position, then the valve body 1 is closed, the valve body 1 is easy to manufacture, the valve core 3, the core seat 4 and the valve body 1 are easy to assemble, and meanwhile, the first valve body and the second valve body are internally lined with the tetrafluoro material respectively, so that the tetrafluoro material is convenient to line.
As shown in fig. 3, the first valve body 11 includes a first valve body 111, one end of the first valve body 111 is provided with a first valve port 114, and the end is provided with a ring of hoop ribs 113 engaged with the hoop; the other end of the first valve body 111 is provided with a first cavity part 131, the end is provided with a first flange plate 112, the first valve port 114 is communicated with the first cavity part 131, the diameter of the first valve port 114 is smaller than the inner diameter of the first cavity part 131, and most of the valve core 3 is arranged in the first cavity part 131.
Referring to fig. 5, the valve core 3 is shaped like a top, and includes a large head 32 and a small head 31, the large head 32 faces the core holder 4, the small head 31 faces the first valve port 114, a tapered surface 33 is formed between the large head 32 and the small head 31, and correspondingly, a transition tapered surface 1311 is also provided between the first cavity 131 and the first valve port 114, on one hand, when forming channels, the width of each channel is substantially the same, so as to avoid over-fast or over-slow medium flow, and on the other hand, the valve core 3 is convenient to abut against the cavity wall.
As shown in fig. 4, the second valve body 12 includes a second valve body 121, and a second valve port 124 is formed at one end of the second valve body 121, and a pipe flange 122 is formed at the end; the other end of the second valve body 121 is provided with a second cavity part 132, and the end is provided with a second flange plate 123; the second valve port 124 communicates with the second chamber portion 132, and the second valve port 124 has a diameter smaller than the inner diameter of the second chamber portion 132, and the cartridge 4 is mostly built in the second chamber portion 132.
As shown in fig. 5, the core holder 4 is cylindrical, the valve hole 41 includes a hollow cavity 411 and a diversion hole 412, the hollow cavity 411 extending inward along the axis is formed at one end of the core holder 4, the end of the core holder 4 abuts against the step formed by the second valve port 124 and the second cavity portion 132, the hollow cavity 411 is aligned with the second valve port 124 to allow the medium to flow into or leave the valve body, one end of the diversion hole is communicated with the hollow cavity 411, and the other end of the diversion hole is opened at the side edge of the valve core to connect the medium in the hollow cavity with the channel 9.
A pipeline flange 122 and a second flange 123 are respectively arranged at two ends of the second valve body 12, a first flange 112 is arranged at one end of the first valve body 11, and a hoop convex rib 113 is arranged at the other end; when a single valve body 1 is seen, the first valve body 11 and the second valve body 12 are connected through the first flange plate 112 and the second flange plate 123, and when the single valve body 1 is seen as a whole, the two valve bodies 1 are connected on the hoop convex ribs 113 on the two sides through the hoop 2 to realize connection.
The end surface of the core print 4 facing the valve core 3 is provided with a spring cylinder 43, the valve core 3 is provided with a receiving hole 34, the spring 5 is inserted into the spring cylinder 43, and the spring cylinder 43 is inserted into the receiving hole 34, the used spring 5 is small, and is tightly protected at the central position of the valve core 3 and the core print 4. The spring tube 43 and the receiving hole 34 not only protect the spring 5, but also limit the moving path of the valve core 3, prevent the deviation and play a role of blocking.
The other end face of the core base 4 is provided with a limit retainer ring 42, one end of the core is arranged in the limit retainer ring 42, and the spring barrel 43 is also enclosed in the limit retainer ring 42, so that the matching degree of the core base 4 and the core 3 is further increased, and the spring 5 is protected.
It is worth mentioning that the outer side of the spring 5 is also wrapped by a tetrafluoro material, the tetrafluoro material on the outer side of the spring 5 is thinner than the tetrafluoro material on the inner lining of the valve body 1, the elasticity of the spring can be guaranteed not to be affected, and meanwhile, the layer-by-layer protection on the outer side of the spring also plays a role in reinforcing protection.
In the aspect of sealing, the bottom end of the conical surface 33 of the small head 31 of the valve core is provided with a circle of sealing ring 6, and in a snapping state, the sealing ring 6 is tightly propped against the inner wall of the valve cavity 13, so that the valve cavity is better sealed and a channel is blocked. The connecting end faces of the valve bodies 1 are provided with anti-clamping sealing rings 8, namely the end face of the first valve body 11 provided with the hoop convex rib 113 is provided with the anti-clamping sealing ring 8, and the anti-clamping sealing ring 8 is arranged at the end face of the polytetrafluoroethylene lining. Be equipped with round sealing washer 7 on first valve body 11 and the 12 connecting surface of second valve body, the terminal surface department at first, second ring flange place promptly is equipped with sealing washer 7, and above-mentioned sealing washer all sets up on the tetrafluoro material, easily processes the sealing washer recess, realizes firmly clamping the sealing washer, and the corrosive medium can not overflow on the valve body metal material, causes the corruption.
Any one valve core 3 in the pair of valve bodies 1 is provided with a limiting bulge (not marked in the figure), the other valve core is provided with a limiting groove 311, when the valve cores are abutted tightly, the limiting bulge is clamped in the limiting groove 311, the matching degree of the valve cores 3 in the abutting process is further ensured, and the abnormal use caused by the offset of the top is prevented.
The above description is the preferred embodiment of the present invention, and it is within the scope of the appended claims to cover all modifications of the invention which may occur to those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. A polytetrafluoroethylene-lined snap valve characterized by: the valve comprises a pair of valve bodies and hoops, wherein the valve bodies are symmetrically arranged and can be connected through the hoops;
the valve comprises a valve body, a valve core seat, a valve core, a valve hole and a valve core, wherein the valve cavity is formed in the valve body, the inner wall of the valve cavity is lined with a polytetrafluoroethylene material, one end of the valve cavity is provided with a first valve port, the valve core and the valve core are both made of the polytetrafluoroethylene material, the valve core seat is embedded in the valve cavity, the valve core is connected to the valve core seat through a spring, the valve core seat is provided with the valve hole, the valve core faces the first valve port, and the maximum diameter of the valve core is larger than the first valve port and smaller than the inner diameter of the valve cavity;
in a normal state, the hoop is locked, the valve cores of the valve body are mutually abutted, the valve cores are far away from the wall of the valve cavity, and a channel for fluid to pass through is reserved;
when the valve body is in a snapping state, the hoop is opened, the valve core of the valve body is separated, and the valve core is tightly abutted against the wall of the valve cavity under the driving of the spring to cut off the channel.
2. The teflon-lined snap valve of claim 1, wherein: the valve cavity comprises a first cavity part arranged in the first valve body and a second cavity part arranged in the second valve body.
3. The teflon-lined snap valve of claim 1, wherein: the valve hole comprises a hollow cavity and a flow distribution hole, the hollow cavity extending inwards along the axis is formed in one end of the valve core seat, one end of the flow distribution hole is communicated with the hollow cavity, and the other end of the flow distribution hole is formed in the side edge of the valve core.
4. A teflon-lined snap valve according to claim 3, characterized in that: the spring valve is characterized in that a spring cylinder is arranged on the end face of the other end of the core print, a containing hole is formed in the valve core, the spring is inserted into the spring cylinder, and the spring cylinder is inserted into the containing hole.
5. The teflon-lined snap valve of claim 4, wherein: and a limiting check ring is arranged on the end face of the other end of the valve core seat, and one end of the valve core is arranged in the limiting check ring.
6. The teflon-lined snap valve of claim 1, wherein: the valve core is shaped like a gyroscope and comprises a big end and a small end, wherein the big end faces the valve core seat, and the small end faces the valve port.
7. The teflon-lined snap valve of claim 6, wherein: a circle of sealing ring is arranged on the valve core; the connecting end surfaces of the valve bodies are provided with anti-clamping sealing rings; and a circle of sealing ring is arranged on the connecting surface of the first valve body and the second valve body.
8. The teflon-lined snap valve of claim 2, wherein: the first valve body comprises a first valve body, one end of the first valve body is provided with the first valve port, and the end is provided with a circle of convex ribs matched with the hoop; the other end of the first valve body is provided with the first cavity part, a first flange is arranged at the other end of the first valve body, the first valve port is communicated with the first cavity part, and the diameter of the first valve port is smaller than that of the first cavity part.
9. The teflon-lined snap valve of claim 8, wherein: the second valve body comprises a second valve body, one end of the second valve body is provided with a second valve port, and the end is provided with a pipeline flange; the other end of the second valve body is provided with the second cavity part, and a second flange is arranged on the end of the second cavity part; the second valve port is communicated with the second cavity part, and the diameter of the second valve port is smaller than that of the second cavity part.
10. The teflon-lined snap valve of claim 1, wherein: any one valve core in the pair of valve bodies is provided with a limiting bulge, the other valve core is provided with a limiting groove, and when the valve cores are tightly abutted, the limiting bulge is clamped in the limiting groove.
CN202111162283.6A 2021-09-30 2021-09-30 PTFE (polytetrafluoroethylene) lined abruption valve Pending CN113833885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111162283.6A CN113833885A (en) 2021-09-30 2021-09-30 PTFE (polytetrafluoroethylene) lined abruption valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111162283.6A CN113833885A (en) 2021-09-30 2021-09-30 PTFE (polytetrafluoroethylene) lined abruption valve

Publications (1)

Publication Number Publication Date
CN113833885A true CN113833885A (en) 2021-12-24

Family

ID=78967850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111162283.6A Pending CN113833885A (en) 2021-09-30 2021-09-30 PTFE (polytetrafluoroethylene) lined abruption valve

Country Status (1)

Country Link
CN (1) CN113833885A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090250647A1 (en) * 2008-04-04 2009-10-08 Richard Anderson Piercing Valve Stem Assembly and System
CN203230910U (en) * 2013-05-07 2013-10-09 连云港同春石化设备有限公司 Low-temperature break away coupling valve
CN104455615A (en) * 2014-10-28 2015-03-25 随州市华特专用设备有限公司 Plastic lined steel emergency cut-off valve
CN205745513U (en) * 2016-06-01 2016-11-30 河北驰润石油化工机械设备科技有限公司 Cause the disconnected urgent Pull breaking ualve of formula
CN106523754A (en) * 2016-11-26 2017-03-22 江苏长隆石化装备有限公司 Low-temperature emergency release coupler
CN108006285A (en) * 2018-01-03 2018-05-08 连云港同春石化设备有限公司 A kind of urgent Pull breaking ualve of Fluorine-lined

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090250647A1 (en) * 2008-04-04 2009-10-08 Richard Anderson Piercing Valve Stem Assembly and System
CN203230910U (en) * 2013-05-07 2013-10-09 连云港同春石化设备有限公司 Low-temperature break away coupling valve
CN104455615A (en) * 2014-10-28 2015-03-25 随州市华特专用设备有限公司 Plastic lined steel emergency cut-off valve
CN205745513U (en) * 2016-06-01 2016-11-30 河北驰润石油化工机械设备科技有限公司 Cause the disconnected urgent Pull breaking ualve of formula
CN106523754A (en) * 2016-11-26 2017-03-22 江苏长隆石化装备有限公司 Low-temperature emergency release coupler
CN108006285A (en) * 2018-01-03 2018-05-08 连云港同春石化设备有限公司 A kind of urgent Pull breaking ualve of Fluorine-lined

Similar Documents

Publication Publication Date Title
US10900609B2 (en) High-pressure container
US7686867B2 (en) Degasifier
US4133442A (en) Tank closure assembly
US10323795B2 (en) High pressure tank
US8007011B2 (en) Sealed flange joint for high pressure and high purity gas channels
US5234194A (en) Seal for a shaft
US10906004B2 (en) Spiral membrane module
US8863973B2 (en) Sealing structure
US9061247B2 (en) Separation membrane module
CN113833885A (en) PTFE (polytetrafluoroethylene) lined abruption valve
KR100540079B1 (en) Sea water seal apparatus for a vessel discharge pipe or vent hole
US20230349492A1 (en) Gasket and flow passage joint structure
US9997807B2 (en) Vibration resistant valve assembly for lead acid batteries
JP2012202485A (en) Wafer type check valve
US568680A (en) henderson
JP6052558B2 (en) Wafer check valve
US8657145B2 (en) Cap for a port of a pressurized container or conduit
ES2203893T3 (en) AIR VALVE ASSEMBLY.
CN209818836U (en) Pressure maintaining valve
JP5973504B2 (en) External seal structure of high-pressure piping flow path and hydrogen station
WO2018003982A1 (en) Check valve
CN218377835U (en) Angle seat type check valve
US20090102141A1 (en) Low Load Annular Gasket
CN217153414U (en) Safe snapping valve easy to assemble
CN211449950U (en) Flexible joint

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination