CN218523081U

CN218523081U - Gas emergency cut-off valve

Info

Publication number: CN218523081U
Application number: CN202222229669.0U
Authority: CN
Inventors: 谢章方; 葛晓瓯; 陈美英
Original assignee: Shanggao Group Co ltd
Current assignee: Shanggao Group Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-02-24
Anticipated expiration: 2032-08-23

Abstract

The application discloses gas emergency cut-off valve, it includes the valve body, still including set up in the valve body the dysmorphism disk seat, can dismantle the valve gap that sets up in the valve body top, set up the air inlet on the dysmorphism disk seat, the fixed spacing installation section of thick bamboo that runs through in valve gap top, the sealed insert is equipped with the valve rod on the spacing installation section of thick bamboo, the valve rod bottom is equipped with the valve clack of shutoff air inlet, be equipped with the reset spring that the valve rod was located to the movable sleeve between valve clack and the spacing installation section of thick bamboo, the fixed solenoid valve subassembly that is used for advancing line location to the valve rod that is equipped with on the spacing installation section of thick bamboo.

Description

Gas emergency cut-off valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to gas quick action emergency valve.

Background

Along with the high-speed development of gas application in China, the gas application is more and more popularized, and the gas becomes one of important energy sources, so that more and more safety accidents of gas combustion and explosion are caused due to gas leakage, and the safety production and the life and property safety of people are seriously influenced. In order to solve the problem that safety accidents happen to gas leakage, the valve can be quickly plugged, gas is not released any more, safety production is ensured, and a gas emergency cut-off valve which is reasonable, scientific, safe and reliable in structure is researched and developed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem who exists among the prior art.

The application provides a gas emergency cut-off valve, it includes the valve body, still including set up in the valve body the dysmorphism disk seat, can dismantle the valve gap that sets up in the valve body top, set up the air inlet on the dysmorphism disk seat, the fixed spacing installation section of thick bamboo that runs through in valve gap top, the sealed insert is equipped with the valve rod on the spacing installation section of thick bamboo, the valve rod bottom is equipped with the valve clack of shutoff air inlet, be equipped with the reset spring that the valve rod was located to the movable sleeve between valve clack and the spacing installation section of thick bamboo, the fixed solenoid valve subassembly that is used for advancing line location to the valve rod that is equipped with on the spacing installation section of thick bamboo.

Adopt foretell a scheme, utilize solenoid valve subassembly to fix a position the valve rod, make the air inlet be in the state of ventilating, when needs emergency shut-off air inlet, start solenoid valve subassembly, make the valve rod break away from spacingly, then the valve rod drives the valve clack downstream under reset spring's effect, makes the valve clack sealed to the air inlet, adopts this kind of mode, can seal fast and seal up the air inlet, blocks up the valve fast, makes the gas no longer release safe and reliable.

Further, the solenoid valve subassembly is including setting up in the casing of spacing installation section of thick bamboo one side, fixed running through the connecting sleeve who sets up between casing and spacing installation section of thick bamboo lateral wall, set up coil in the casing, set up in the casing top and with the explosion-proof terminal box of coil connection, set gradually fixed iron core, top tight spring, the removal iron core in the coil from the left hand right side, remove the iron core cooperation and insert and locate the connecting sleeve in, set up on the valve rod lateral wall and remove the annular fluting that the iron core cooperation was used.

Further, valve clack bottom is equipped with PTFE seal assembly, PTFE seal assembly including set up in the sealed pad of PTFE of valve clack bottom, set up in the sealed pad bottom of PTFE and the sealed clamp plate of top cap on PTFE seals up, the external diameter of clamp plate both is less than the internal diameter of air inlet and is less than the sealed external diameter that fills up of PTFE, the sealed external diameter that fills up of PTFE is greater than the external diameter of air inlet, the clamp plate can block and locate in the air inlet.

Furthermore, screws penetrate through the PTFE sealing gasket and the pressure plate, and are screwed on the valve clack.

Furthermore, a plurality of bolts are symmetrically arranged on the left and right of the valve cover in a penetrating mode, and the bolts are in threaded connection with the top of the valve body.

The beneficial effects of the utility model will be elaborated in the embodiment to make beneficial effect more obvious.

Drawings

Fig. 1 is a schematic diagram of the present application.

Reference numerals

1. A valve body; 2. a special-shaped valve seat; 3. an air inlet; 4. a valve flap; 5. a PTFE gasket; 6. pressing a plate; 7. a screw; 8. a valve stem; 9. a limiting installation cylinder; 10. a valve cover; 11. a housing; 12. a connecting sleeve; 13. a coil; 14. moving the iron core; 15. fixing an iron core; 16. the spring is tightly propped; 17. an explosion-proof junction box; 18. a bolt; 19. annular slotting; 20. a return spring.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

The embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Example 1:

as shown in fig. 1, this embodiment provides a gas emergency cut-off valve, it includes valve body 1, still including setting up special-shaped valve seat 2 in valve body 1, can dismantle the valve gap 10 that sets up in valve body 1 top, set up the air inlet 3 on special-shaped valve seat 2, the fixed spacing installation section of thick bamboo 9 that runs through in valve gap 10 top, sealed the inserting is equipped with valve rod 8 on the spacing installation section of thick bamboo 9, valve rod 8 bottom is equipped with the valve clack 4 of shutoff air inlet 3, be equipped with reset spring 20 that the movable sleeve located on valve rod 8 between valve clack 4 and the spacing installation section of thick bamboo 9, the fixed solenoid valve subassembly that is used for advancing line location to valve rod 8 that is equipped with on the spacing installation section of thick bamboo 9. Adopt foretell a scheme, utilize solenoid valve subassembly to fix a position valve rod 8, make air inlet 3 be in the state of ventilating, when needs emergency shutdown air inlet 3, start solenoid valve subassembly, make valve rod 8 break away from spacingly, then valve rod 8 drives valve clack 4 downstream under reset spring 20's effect, make valve clack 4 sealed to air inlet 3, adopt this kind of mode, can seal fast and seal air inlet 3, the valve is plugged up to quick the shutoff, make the gas no longer release safe and reliable.

The solenoid valve subassembly is including setting up in the casing 11 of spacing installation section of thick bamboo 9 one side, fixed run through set up in casing 11 and spacing installation section of thick bamboo 9 lateral wall between connecting sleeve 12, set up coil 13 in casing 11, set up in the explosion-proof terminal box 17 that 11 tops of casing and be connected with coil 13, set gradually the fixed iron core 15 in coil 13 from left right side, top tight spring 16, remove iron core 14 cooperation and insert and locate in connecting sleeve 12, set up the annular fluting 19 that uses with removing iron core 14 cooperation on the valve rod 8 lateral wall. The arrangement of the solenoid valve assembly can enable the movable iron core 14 to be rapidly withdrawn from the annular slot 19 by utilizing the electrification of the coil 13, and in this way, the valve rod 8 can be free from the limit.

Valve clack 4 bottom is equipped with PTFE seal assembly, PTFE seal assembly including set up in the sealed pad 5 of PTFE of valve clack 4 bottom, set up in the sealed 5 bottom of PTFE pad and top cap clamp plate 6 on the sealed pad 5 of PTFE, the external diameter of clamp plate 6 both is less than the internal diameter of air inlet 3 and is less than the sealed external diameter of 5 of PTFE pad, the sealed external diameter of 5 of PTFE pad is greater than the external diameter of air inlet 3, clamp plate 6 can block and locate in the air inlet 3. Through setting up the PTFE seal assembly, when sealed air inlet 3, when clamp plate 6 card was located in the

air inlet

3, 5 outer fringe of PTFE sealed pad and the 3 compactions of air inlet on the special-shaped valve seat 2 guaranteed the leakproofness.

The PTFE sealing gasket 5 and the pressure plate 6 are provided with screws 7 in a penetrating mode, the screws 7 are in threaded connection with the valve clack 4, and the PTFE sealing assembly can be detached by screwing the screws 7.

The valve cover 10 is provided with a plurality of bolts 18 in a left-right symmetrical penetrating mode, the bolts 18 are in threaded connection with the top of the valve body 1, and the valve cover 10 can be detached by screwing the bolts 18.

The working principle is as follows: when the valve needs to be closed emergently, the coil 13 is made to be instantaneous, the fixed iron core 15 can attract the movable iron core 14, the tightening spring 16 is compressed at the moment, the movable iron core 14 exits from the annular groove 19 on the valve rod 8, the valve rod 8 gets rid of limitation, on the next step, the valve rod 8 can drive the valve clack 4 to move under the pushing action of the reset spring 20, the valve clack 4 drives the PTFE sealing component to move towards the air inlet 3, the circular pressing plate 6 on the PTFE sealing component is inserted into the air inlet 3, then the PTFE sealing gasket 5 is tightly pressed on the air inlet 3, and the emergency closing of the valve is completed.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Gas quick emergency valve, including the valve body, its characterized in that: the valve comprises a valve body and is characterized by further comprising a special-shaped valve seat arranged in the valve body, a valve cover detachably arranged at the top of the valve body and an air inlet formed in the special-shaped valve seat, wherein a limiting installation cylinder is fixedly arranged at the top of the valve cover in a penetrating mode, a valve rod is arranged on the limiting installation cylinder in a sealing and inserting mode, a valve clack used for plugging the air inlet is arranged at the bottom of the valve rod, a reset spring used for arranging a movable sleeve on the valve rod is arranged between the valve clack and the limiting installation cylinder, and an electromagnetic valve assembly used for positioning the valve rod is fixedly arranged on the limiting installation cylinder.

2. The gas emergency shut-off valve according to claim 1, characterized in that: the electromagnetic valve assembly comprises a shell arranged on one side of a limiting installation barrel, a connecting sleeve fixedly penetrating between the shell and the outer side wall of the limiting installation barrel, a coil arranged in the shell, an explosion-proof junction box arranged at the top of the shell and connected with the coil, a fixed iron core, a jacking spring and a movable iron core which are sequentially arranged in the coil from left to right, wherein the movable iron core is matched and inserted into the connecting sleeve, and an annular groove matched with the movable iron core is formed in the outer side wall of the valve rod.

3. The gas emergency shut-off valve according to claim 1, wherein: the valve clack bottom is equipped with PTFE seal assembly, PTFE seal assembly including set up in the sealed pad of PTFE of valve clack bottom, set up in the sealed pad bottom of PTFE and the top cap in the sealed clamp plate that fills up of PTFE, the external diameter of clamp plate both is less than the internal diameter of air inlet and is less than the sealed external diameter that fills up of PTFE, the sealed external diameter that fills up of PTFE is greater than the external diameter of air inlet, the clamp plate can block and locate in the air inlet.

4. The gas emergency shut-off valve according to claim 3, wherein: screws penetrate through the PTFE sealing gasket and the pressure plate and are screwed on the valve clack.

5. The gas emergency shut-off valve according to claim 1, characterized in that: the valve cover is symmetrically provided with a plurality of bolts in a penetrating mode, and the bolts are in threaded connection with the top of the valve body.