CN218494228U

CN218494228U - Automatic control overpressure protection pneumatic high-pressure gate valve

Info

Publication number: CN218494228U
Application number: CN202222730640.0U
Authority: CN
Inventors: 石业超
Original assignee: Haimen Beilestone Machinery Co ltd
Current assignee: Haimen Beilestone Machinery Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-02-17
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a pneumatic high-pressure gate valve of automatic control superpressure protection, including valve body, protection subassembly and auxiliary assembly, the protection subassembly includes the disk seat of valve body upper end installation to and disk seat and valve body internally mounted's valve rod, the protection subassembly still includes valve rod bottom one side fixed mounting's fixed wedge. A pneumatic high pressure gate valve of automatic control superpressure protection, the activity wedge of valve rod bottom one side is when being stressed great, can self carry out appropriate compression, and expose the pressure sensor of valve body upper end, pressure sensor in time detects the inside pressure of valve body, thereby when the pressure superpressure, through pneumatic drive arrangement, open the valve rod of valve body bottom, and carry out the automatic protection of superpressure in-process, the electronic jar of cylinder barrel bottom both sides installation, also can damage or when the result of use is not good at pneumatic drive arrangement, supplementary pneumatic drive arrangement, carry out the lifting to inside piston of cylinder barrel and valve rod, thereby accomplish in time opening of valve body.

Description

Automatic control overpressure protection pneumatic high-pressure gate valve

Technical Field

The utility model relates to a pneumatic gate valve technical field, in particular to pneumatic high-pressure gate valve of automatic control superpressure protection.

Background

Pneumatic gate valve is with the help of compressed air driven valve, and when the gate valve was closed, sealed face can only rely on medium pressure to seal, relies on medium pressure to press the sealed face of flashboard to the disk seat of opposite side to guarantee sealed face promptly, and this is exactly self sealedly, and most gate valves adopt forced seal, when the valve was closed promptly, will rely on external force to press the flashboard to the disk seat by force to guarantee sealed face's leakproofness.

Although the existing pneumatic gate valve, such as the pneumatic gate valve disclosed in publication No. CN216479232U, has the advantages of more worry about using the gate valve and no need of worrying about mistaken touch, when the pressure inside the gate valve is in overpressure state, the pneumatic gate valve cannot be detected and is opened automatically, so that the valve rod is easily bent due to the overpressure state inside the gate valve for a long time, and therefore, a self-control overpressure protection pneumatic high-pressure gate valve is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a pneumatic high-pressure gate valve of automatic control superpressure protection can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a pneumatic high-pressure gate valve of automatic control superpressure protection, includes valve body, protection subassembly and auxiliary assembly, the protection subassembly includes the disk seat of valve body upper end installation to and disk seat and valve body internally mounted's valve rod, the protection subassembly still includes valve rod bottom one side fixed mounting's fixed wedge, and fixed wedge inboard movable mounting's movable wedge.

Preferably, the fixed wedge block comprises four groups of round holes symmetrically formed in two ends of the inner side of the fixed wedge block.

Preferably, the movable wedge block comprises a connecting rod which is symmetrically welded at two ends of the inner side of the movable wedge block and inserted into the round hole, and a first spring which is sleeved at the upper end of the connecting rod.

Preferably, the protection assembly further comprises a cylinder barrel arranged at the upper end of the valve seat, and a pneumatic driving device arranged at the outer end of the cylinder barrel.

Preferably, the protection assembly further comprises a piston fixedly mounted at the upper end of the valve rod in the cylinder barrel, and a second spring mounted in the cylinder barrel at the upper end of the piston.

Preferably, the protection assembly further comprises a pressure sensor mounted inside the valve seat and electrically connected with the pneumatic driving device.

Preferably, the auxiliary assembly comprises openings which are formed in the two sides of the bottom of the cylinder barrel in a penetrating mode, and the openings are of cylindrical structures.

Preferably, the auxiliary assembly further comprises electric cylinders fixedly mounted on two sides of the bottom of the cylinder barrel, and a sealing sleeve fixedly mounted between the electric cylinders and the opening in the cylinder barrel.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. a self-control overpressure protection pneumatic high-pressure gate valve is characterized in that a movable wedge-shaped block on one side of the bottom of a valve rod can be compressed properly when the pressure is high, a pressure sensor at the upper end of a valve body is exposed, and the pressure sensor detects the pressure inside the valve body in time, so that when the pressure is overpressure, the valve rod at the bottom of the valve body is opened through a pneumatic driving device, and self-protection is performed in an overpressure process;

2. the utility model provides an electronic jar of automatic control superpressure protection pneumatic high pressure gate valve, the cylinder barrel bottom both sides installation also can assist pneumatic drive arrangement when pneumatic drive arrangement damages or the result of use is not good, carries out the lifting to the piston and the valve rod of cylinder barrel inside to accomplish opening in time of the inside superpressure in-process of valve body.

Drawings

Fig. 1 is a schematic view of the overall structure of the self-controlled overpressure protection pneumatic high-pressure gate valve of the present invention;

fig. 2 is a side sectional view of the self-controlled overpressure protection pneumatic high-pressure gate valve of the present invention;

fig. 3 is an enlarged view of a in fig. 2 of the self-controlled overpressure protection pneumatic high-pressure gate valve of the present invention;

fig. 4 is an enlarged view of B in fig. 2 of the self-controlled overpressure protection pneumatic high-pressure gate valve of the present invention.

Reference numerals are as follows:

100. a valve body;

200. a protection component; 210. a valve seat; 220. a valve stem; 230. fixing a wedge block; 231. a circular hole; 240. a movable wedge block; 241. a connecting rod; 242. a first spring; 250. a cylinder barrel; 260. a pneumatic drive; 270. a piston; 280. a second spring; 290. a pressure sensor;

300. an auxiliary component; 310. an opening; 320. an electric cylinder; 330. and (7) sealing sleeves.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

The first embodiment is as follows:

as shown in fig. 1 to 3, the present embodiment provides an automatic control overpressure protection pneumatic high-pressure gate valve, which includes a valve body 100, a protection assembly 200 and an auxiliary assembly 300, where the protection assembly 200 includes a valve seat 210 mounted at an upper end of the valve body 100, and a valve stem 220 mounted inside the valve seat 210 and the valve body 100, the protection assembly 200 further includes a fixed wedge block 230 fixedly mounted at one side of a bottom of the valve stem 220, and a movable wedge block 240 movably mounted inside the fixed wedge block 230, the fixed wedge block 230 includes circular holes 231 symmetrically formed at two ends inside the fixed wedge block, and the number of the circular holes 231 is four, the movable wedge block 240 includes a connecting rod 241 inserted inside the circular hole 231, and a first spring 242 sleeved on the connecting rod 241, the protection assembly 200 further includes a cylinder 250 disposed at an upper end of the valve seat 210, and a pneumatic driving device 260 mounted at an outer end of the cylinder 250, the protection assembly 200 further includes a piston 270 fixedly mounted at an upper end of the valve stem 220 inside the cylinder 250, and a second spring 280 mounted inside the cylinder 250 at an upper end of the piston 270, and the protection assembly 200 further includes a pressure sensor 290 electrically connected to the pneumatic driving device 260 mounted inside the valve seat 210.

Specifically, when the pressure of the movable wedge block 240 on the bottom side of the valve rod 220 inside the valve body 100 is high, the first spring 242 between the movable wedge block and the fixed wedge block 230 can be compressed, and the pressure sensor 290 on the upper end of the valve body 100 is exposed, and the pressure sensor 290 detects the pressure inside the valve body 100 in time, so that when the pressure inside the valve body 100 is over-pressurized, the piston 270 and the valve rod 220 inside the cylinder barrel 250 are lifted through the pneumatic driving device 260, and the fixed wedge block 230 and the movable wedge block 240 which are sealed at the bottom of the valve body 100 are opened, so that the valve body 100 is protected by itself in an over-pressure process, and the safety in use is improved.

Example two:

on the basis of the first embodiment, as shown in fig. 4, the auxiliary assembly 300 includes openings 310 formed through both sides of the bottom of the cylinder tube 250, and the openings 310 are cylindrical structures, the auxiliary assembly 300 further includes electric cylinders 320 fixedly mounted on both sides of the bottom of the cylinder tube 250, and sealing sleeves 330 fixedly mounted between the electric cylinders 320 and the openings 310 in the cylinder tube 250.

Specifically, the electric cylinders 320 fixedly mounted on two sides of the bottom of the cylinder barrel 250 can assist the pneumatic driving device 260 to lift the piston 270 and the valve rod 220 inside the cylinder barrel 250 when the pneumatic driving device 260 is damaged or has poor using effect, so that timely opening in the overpressure process inside the valve body 100 is completed, and the sealing sleeves 330 fixedly mounted between the electric cylinders 320 and the openings 310 in the cylinder barrel 250 can also seal and protect the bottom of the cylinder barrel 250.

The utility model discloses a theory of operation and use flow:

when the interior of the valve body 100 is in overpressure, pressure presses the movable wedge block 240 on one side of the bottom of the valve rod 220 in the valve body 100, when the movable wedge block 240 is under greater pressure, the first spring 242 on the upper end of the inner connecting rod 241 is compressed, so that the movable wedge block moves laterally along the circular hole 231 in the fixed wedge block 230, and thus leaks out of the cavity in the upper end of the valve body 100, the pressure sensor 290 installed in the cavity in the upper end of the valve body 100 can detect the pressure in the valve body 100 after the movable wedge block 240 moves outwards and opens, and when the pressure in the valve body 100 is detected to be in overpressure, the pneumatic driving device 260 at the outer end of the cylinder barrel 250 is started, after the pneumatic driving device 260 is started, the piston 270 in the cylinder barrel 250 is driven to drive the valve rod 220 to move upwards, so that the movable wedge blocks 240 and the fixed wedge blocks 230 on both sides of the bottom of the valve rod 220 are lifted, so that when the valve body 100 is in overpressure, the valve body 100 is automatically opened, and the electric cylinders 320 fixedly installed on both sides of the bottom of the cylinder barrel 250 are also, and the piston 270 and the piston in the valve body 100 is timely lifted in the overpressure process of the opening process is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a pneumatic high-pressure gate valve of automatic control superpressure protection, includes valve body (100), protection subassembly (200) and auxiliary assembly (300), its characterized in that, protection subassembly (200) include disk seat (210) of valve body (100) upper end installation to and disk seat (210) and valve body (100) internally mounted's valve rod (220), protection subassembly (200) still include valve rod (220) bottom one side fixed mounting's fixed wedge (230) to and fixed wedge (230) inboard movable mounting's movable wedge (240).

2. The self-controlled overpressure protection pneumatic high-pressure gate valve as claimed in claim 1, wherein the fixed wedge block (230) includes four sets of circular holes (231) symmetrically formed at two ends of the inner side thereof, and the number of the circular holes (231) is four.

3. An automatic control overpressure protection pneumatic high-pressure gate valve as claimed in claim 1, wherein the movable wedge block (240) includes a connecting rod (241) inserted into the circular hole (231) and with both ends of its inner side symmetrically welded, and a first spring (242) sleeved on the upper end of the connecting rod (241).

4. The self-controlled overpressure protection pneumatic high-pressure gate valve as claimed in claim 1, wherein the protection assembly (200) further includes a cylinder (250) provided at an upper end of the valve seat (210), and a pneumatic driving device (260) installed at an outer end of the cylinder (250).

5. The self-controlled overpressure protection pneumatic high-pressure gate valve as claimed in claim 1, wherein the protection assembly (200) further includes a piston (270) fixedly installed at an upper end of the valve stem (220) inside the cylinder (250), and a second spring (280) installed inside the cylinder (250) at an upper end of the piston (270).

6. An automatically controlled overpressure protection pneumatic high pressure gate valve as claimed in claim 1, wherein the protection assembly (200) further includes a pressure sensor (290) mounted inside the valve seat (210) and electrically connected to the pneumatic driving means (260).

7. The self-controlled overpressure protection pneumatic high-pressure gate valve as claimed in claim 1, wherein the auxiliary assembly (300) includes openings (310) formed through both sides of the bottom of the cylinder barrel (250), and the openings (310) are cylindrical.

8. The self-controlled overpressure protection pneumatic high-pressure gate valve as claimed in claim 1, wherein the auxiliary assembly (300) further comprises an electric cylinder (320) fixedly installed at both sides of the bottom of the cylinder barrel (250), and a sealing sleeve (330) fixedly installed between the electric cylinder (320) and the opening (310) in the cylinder barrel (250).