CN213064667U - Double-body valve for blocking internal leakage of valve gas material by high-pressure blocking medium - Google Patents

Abstract

The utility model relates to the technical field of valves, and discloses a double-body valve for blocking internal leakage of valve gas materials by high-pressure blocking media, which comprises a valve main pipe, wherein the top end of the valve main pipe is fixedly provided with an upper valve seat, the top end of the upper valve seat is movably provided with an upper valve rod, the top end of the upper valve rod is fixedly provided with a hand wheel, the left side of the valve main pipe is movably provided with a sealing pipe, the right side of the valve main pipe is fixedly provided with an outlet pipe, the right side of the sealing pipe is fixedly provided with a valve plate, the inside of the valve plate is embedded with a left piston, the left side of the left piston is movably provided with a left air pressure block, the left side of the left air pressure block is fixedly provided with a left valve rod, the inside of the sealing pipe is movably provided with an inlet pipe, the bottom, the equipment can effectively prevent the gas material from leaking inwards.

Description

Double-body valve for blocking internal leakage of valve gas material by high-pressure blocking medium

Technical Field

The utility model relates to the technical field of valves, specifically be a block binary valve that leaks in valve gas material with high pressure separation medium.

Background

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. Most of valves are sealed the pipeline through valve plate, piston etc. to reach the effect of separation, but because can't reach complete closure between the valve plate piston, can cause the internal leakage or the leakage of gas material, cause the waste of gas material, also can harm external air circumstance simultaneously.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a block binary valve of leaking in valve gas material with high pressure separation medium possesses the advantage that can prevent leaking in the gas material, has solved the problem of leaking in the gas material.

(II) technical scheme

For the purpose that realizes above-mentioned can prevent leaking in the gas material, the utility model provides a following technical scheme: a double-body valve for blocking internal leakage of valve gas materials by using high-pressure blocking media comprises a valve main pipe, wherein an upper valve seat is fixedly arranged at the top end of the valve main pipe, an upper valve rod is movably arranged at the top end of the upper valve seat, a hand wheel is fixedly arranged at the top end of the upper valve rod, a sealing pipe is movably arranged at the left side of the valve main pipe, an air outlet pipe is fixedly arranged at the right side of the valve main pipe, a valve plate is fixedly arranged at the right side of the sealing pipe, a left piston is embedded in the valve plate, a left air pressure block is movably arranged at the left side of the left piston, a left valve rod is fixedly arranged at the left side of the left air pressure block, an air inlet pipe is movably arranged in the sealing pipe, an upper piston is fixedly arranged at the bottom end of the upper valve rod, an air vent, the utility model discloses a pneumatic valve, including right atmospheric pressure piece, valve main pipe, return bend left side fixed mounting have a valve rod seat, return bend top fixed mounting has the connecting pipe.

Preferably, left side atmospheric pressure piece and right atmospheric pressure piece constitute by pneumatic tube, two compression boards, form airtight space between two compression boards and the pneumatic tube, and inside is full of inert gas, with valve rod and piston difference fixed mounting in the outside of two compression boards, when the valve rod drives the piston and removes, impress the piston in the valve body, compressed air in the atmospheric pressure piece can be compressed when receiving the pressure at both ends, also can be with compression board to both sides jack-up when the compressed to it is tighter to make the piston can seal.

Preferably, the valve main pipe is internally provided with a sealing pipe groove, the right end of the vent pipe groove is connected with the right end of the sealing pipe groove, the left end of the vent pipe groove is connected with the left end of the sealing pipe groove, the upper piston is movably arranged between the vent pipe groove and the sealing pipe groove, the upper valve rod seals the vent pipe groove, when the upper piston is lifted, the spaces on the left side and the right side of the valve plate are communicated with the vent pipe groove, so that the valve plate can normally move left and right, and the valve plate can move to the rightmost end of the sealing pipe groove due to the fact that the right end of the vent pipe groove is connected with the right end of the sealing pipe groove, so that the air inlet pipe is directly connected with the air outlet.

Preferably, the inside fixed mounting in breather pipe groove has the stopper, stopper fixed mounting is on the right side of breather pipe groove and sealed pipe groove left end junction, valve plate movable mounting is on the right side of gag lever post, admission valve fixed mounting is in the left side of valve plate, when the valve plate moves left, can be restrained the position by the stopper, prevents that the valve plate from plugging up the left port in breather pipe groove, avoids taking place the unable condition that removes, when using, because the gas leakage condition that can take place, can directly follow the admission valve and admit air, guarantees that the atmospheric pressure in the breather pipe groove maintains at a certain degree.

Preferably, the outer wall of the sealing pipe is tightly attached to the main valve pipe, the sealing pipe is tightly attached to the inner wall of the air inlet pipe, the sealing pipe groove is filled with compressed inert gas, air leakage is prevented, meanwhile, the high pressure of the inert gas in the sealing pipe groove is utilized, the gas in the air inlet pipe is prevented from leaking from a gap between the left piston and the valve plate, waste is caused, and the inert gas is not a product and is harmless, so that the inert gas cannot be harmed when reversely entering the air inlet pipe.

Preferably, left valve rod movable mounting is in the valve rod seat, fixed mounting has the flange between return bend, connecting pipe and the valve person in charge, the return bend is totally two, and another fixed mounting connects through the multistage pipeline on the right side of outlet duct, makes things convenient for dismouting and adjustment.

Preferably, the upper piston and the valve main pipe are fixedly provided with an upper sealing ring, the left piston and the valve plate are fixedly provided with a left sealing ring, and the right piston and the valve main pipe are fixedly provided with a right sealing ring.

(III) advantageous effects

Compared with the prior art, the utility model provides a block binary valve of leaking in valve gas material with high pressure separation medium possesses following beneficial effect:

1. this block binary valve that leaks in valve gas material with high pressure separation medium packs highly compressed inert gas through the sealed pipe box of air inlet valve net, utilizes inert gas's high pressure, makes the gas in the air inlet pipe because inert gas's high pressure, can't enter into sealed pipe box through the clearance between left piston and the valve in, has also prevented simultaneously that gas directly from leaking the outlet duct, avoids flowing the external condition from the outlet duct to reach the purpose that prevents gas leakage.

2. This block binary valve of leaking in valve gas material with high pressure separation medium, when need not ventilate, plug up breather pipe groove and sealed pipe groove with last piston, separate the gas of valve plate both sides, utilize atmospheric pressure to fix the valve plate position, move left piston to the right, plug up the valve plate, thereby reach the purpose that utilizes high-pressure gas to prevent gas leakage, when needs ventilate, want the piston to move up, make the air intercommunication of the valve plate left and right sides, utilize sealed tube and left valve rod to promote left piston and valve plate right, until pushing to the right end, make intake pipe and outlet duct directly communicate, and the operation and the use of being convenient for.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the main pipe of the valve of the present invention;

FIG. 3 is a sectional view of the intake pipe of the present invention;

fig. 4 is a sectional view of the outlet pipe of the present invention.

In the figure: 1. a valve main pipe; 2. an upper valve seat; 3. an upper valve stem; 4. a hand wheel; 5. a sealing tube; 6. an air outlet pipe; 7. a valve plate; 8. a left piston; 9. a left air pressure block; 10. a left valve stem; 11. an air inlet pipe; 12. an upper piston; 13. a vent tube slot; 14. a right piston; 15. a right gas pressure block; 16. a right valve stem; 17. an intake valve; 18. bending the pipe; 19. a valve stem seat; 20. and (4) connecting the pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a double-body valve for blocking internal leakage of valve gas materials by using a high-pressure blocking medium comprises a valve main pipe 1, wherein an upper valve seat 2 is fixedly installed at the top end of the valve main pipe 1, an upper valve rod 3 is movably installed at the top end of the upper valve seat 2, a hand wheel 4 is fixedly installed at the top end of the upper valve rod 3, a sealing pipe 5 is movably installed at the left side of the valve main pipe 1, and an air outlet pipe 6 is fixedly installed at the right side of the valve main pipe 1;

referring to fig. 2, a valve plate 7 is fixedly installed on the right side of a sealing tube 5, a left piston 8 is embedded in the valve plate 7, a left air pressure block 9 is movably installed on the left side of the left piston 8, a left valve rod 10 is fixedly installed on the left side of the left air pressure block 9, an air inlet pipe 11 is movably installed in the sealing tube 5, the outer wall of the sealing tube 5 is tightly attached to a valve main pipe 1, the sealing tube 5 is tightly attached to the inner wall of the air inlet pipe 11, a groove of the sealing tube 5 is filled with compressed inert gas, air leakage is prevented, meanwhile, the gas in the air inlet pipe 11 is prevented from leaking out from a gap between the left piston 8 and the valve plate 7 by using the high pressure of the inert gas in the groove of the sealing tube 5, waste is caused, since the inert gas is not a product and harmless, the inert gas reversely enters the air inlet pipe 11 without harm, an upper piston 12, the valve main pipe 1 is internally provided with a sealing pipe 5 groove, the right end of a vent pipe groove 13 is connected with the right end of the sealing pipe 5 groove, the left end of the vent pipe groove 13 is connected with the left end of the sealing pipe 5 groove, an upper piston 12 is movably arranged between the vent pipe groove 13 and the sealing pipe 5 groove, an upper valve rod 3 seals the vent pipe groove 13, when the upper piston 12 is lifted, the spaces at the left side and the right side of a valve plate 7 are connected through the vent pipe groove 13, so that the valve plate 7 can normally move left and right, and because the right end of the vent pipe groove 13 is connected with the right end of the sealing pipe 5 groove, the valve plate 7 can move to the rightmost end of the sealing pipe 5 groove, so that an air inlet pipe 11 is directly connected with an air outlet pipe 6 for direct ventilation, a limit block is fixedly arranged inside the vent pipe groove 13, the limit block is fixedly arranged at the right side of the joint of the vent pipe, the air inlet valve 17 is fixedly arranged on the left side of the valve plate 7, when the valve plate 7 moves to the left, the position of the air inlet valve is limited by a limiting block, the valve plate 7 is prevented from blocking the left port of the vent pipe groove 13, the condition that the air inlet valve cannot move is avoided, when the air inlet valve is used, air can be directly fed from the air inlet valve 17 due to the possible air leakage condition, the air pressure in the vent pipe groove 13 is ensured to be maintained at a certain degree, the right side of the valve main pipe 1 is movably provided with a right piston 14, an upper sealing ring is fixedly arranged between the upper piston 12 and the valve main pipe 1, a left sealing ring is fixedly arranged between the left piston 8 and the valve plate 7, a right sealing ring is fixedly arranged between the right piston 14 and the valve main pipe 1, the right end of the right piston 14 is movably provided with a right air pressure block 15, the left air pressure block 9 and the right air, the valve rod and the piston are respectively and fixedly arranged on the outer sides of the two compression plates, when the valve rod drives the piston to move, the piston is pressed into the valve body, compressed air in the air pressure block is compressed when being subjected to pressure at two ends, the compression plates are jacked to two sides when being compressed, so that the piston can be closed more tightly, the right side of the right air pressure block 15 is movably provided with a right valve rod 16, and the bottom end of the valve main pipe 1 is fixedly provided with an air inlet valve 17;

referring to fig. 3 and 4, a bent pipe 18 is fixedly mounted at the left end of the air inlet pipe 11, a valve rod seat 19 is fixedly mounted at the left side of the bent pipe 18, the left valve rod 10 is movably mounted in the valve rod seat 19, flanges are fixedly mounted among the bent pipe 18, the connecting pipe 20 and the valve main pipe 1, the number of the bent pipes 18 is two, the other one is fixedly mounted at the right side of the air outlet pipe 6 and is connected through a plurality of sections of pipelines, disassembly and assembly and adjustment are facilitated, and the connecting pipe 20 is fixedly mounted.

The working principle is as follows: the left piston 8 is moved to the right, the left piston 8 is inserted into the valve plate 7, the right piston 14 is moved to the left, the direction of the air outlet pipe 6 is blocked, a closed space is formed in the groove of the sealing pipe 5, compressed inert gas is filled into the groove of the sealing pipe 5 from the air inlet valve 17, the air vent pipe groove 13 and the groove of the sealing pipe 5 are filled with high-pressure inert gas, the upper piston 12 is moved downwards, the sealing pipe 5 groove and the air vent pipe groove 13 are separated by the upper piston 12 and the upper valve rod 3, so that the effect of fixing the valve plate 7 is achieved, the valve plate 7 is fixed, the valve plate 7 is prevented from moving under the pressure of the left piston 8, the gas in the air inlet pipe 11 is prevented from leaking from a gap between the left piston 8 and the valve plate 7 by using higher pressure, the waste of the gas is caused, the damage cannot be caused by the leakage of the inert gas to the outside due to the characteristics of the inert gas, and the waste of the gas, when needing to ventilate, move up piston 12, reappear intercommunication sealing tube 5 groove and breather pipe groove 13, make valve plate 7 can move to the rightmost end to the right side, make intake pipe 11 and outlet duct 6 intercommunication, can directly ventilate.

To sum up, the double-body valve for blocking the internal leakage of the gas material of the valve by using the high-pressure blocking medium fills the high-pressure inert gas in the groove of the net sealing pipe 5 through the gas inlet valve 17, and the gas in the gas inlet pipe 11 cannot enter the groove of the sealing pipe 5 through the gap between the left piston 8 and the valve due to the high pressure of the inert gas by using the high pressure of the inert gas, so that the gas is prevented from directly leaking to the gas outlet pipe 6, the gas is prevented from flowing to the outside from the gas outlet pipe 6, and the purpose of preventing gas leakage is achieved; when not needing to ventilate, block up breather pipe groove 13 and 5 grooves of sealing tube with last piston 12, separate the gas of valve plate 7 both sides, utilize atmospheric pressure to fix valve plate 7 position, move left piston 8 to the right, block up valve plate 7, thereby reach the purpose that utilizes high-pressure gas to prevent gas leakage, when needs ventilate, want piston 12 to move up, make the air intercommunication of the valve plate 7 left and right sides, utilize sealing tube 5 and left valve rod 10 to promote left piston 8 and valve plate 7 to the right, until pushing to the rightmost end, make intake pipe 11 and outlet duct 6 directly communicate, and the operation and the use of being convenient for.

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 appended claims and their equivalents.

Claims (7)

1. The utility model provides a two body valves with high pressure separation medium blocks leaking in valve gas material, includes valve main pipe (1), its characterized in that: an upper valve seat (2) is fixedly installed at the top end of the valve main pipe (1), an upper valve rod (3) is movably installed at the top end of the upper valve seat (2), a hand wheel (4) is fixedly installed at the top end of the upper valve rod (3), a sealing pipe (5) is movably installed on the left side of the valve main pipe (1), and an air outlet pipe (6) is fixedly installed on the right side of the valve main pipe (1);

the air inlet valve is characterized in that a valve plate (7) is fixedly mounted on the right side of the sealing pipe (5), a left piston (8) is embedded in the valve plate (7), a left air pressure block (9) is movably mounted on the left side of the left piston (8), a left valve rod (10) is fixedly mounted on the left side of the left air pressure block (9), an air inlet pipe (11) is movably mounted in the sealing pipe (5), an upper piston (12) is fixedly mounted at the bottom end of the upper valve rod (3), an air inlet pipe groove (13) is formed in the top of the valve main pipe (1), a right piston (14) is movably mounted on the right side of the valve main pipe (1), a right air pressure block (15) is movably mounted at the right end of the right piston (14), a right valve rod (16) is movably mounted on the right side of;

intake pipe (11) left end fixed mounting has return bend (18), return bend (18) left side fixed mounting has valve stem seat (19), return bend (18) top fixed mounting has connecting pipe (20).

2. The dual body valve of claim 1, wherein the high pressure barrier medium blocks leakage of gaseous material through the valve, and wherein: the left air pressure block (9) and the right air pressure block (15) are both composed of an air pressure pipe and two compression plates, a closed space is formed between the two compression plates and the air pressure pipe, and the interior of the two compression plates is filled with inert gas.

3. The dual body valve of claim 1, wherein the high pressure barrier medium blocks leakage of gaseous material through the valve, and wherein: the valve is characterized in that a sealing pipe (5) groove is formed in the valve main pipe (1), the right end of the vent pipe groove (13) is connected with the right end of the sealing pipe (5) groove, the left end of the vent pipe groove (13) is connected with the left end of the sealing pipe (5) groove, the upper piston (12) is movably installed between the vent pipe groove (13) and the sealing pipe (5) groove, and the vent pipe groove (13) is sealed by the upper valve rod (3).

4. The dual body valve of claim 3, wherein the high pressure barrier medium blocks leakage of gaseous material through the valve, and wherein: the air vent pipe is characterized in that a limiting block is fixedly mounted inside the air vent pipe groove (13), the limiting block is fixedly mounted on the right side of the joint of the air vent pipe groove (13) and the left end of the sealing pipe (5), the valve plate (7) is movably mounted on the right side of the limiting rod, and the air inlet valve (17) is fixedly mounted on the left side of the valve plate (7).

5. The dual body valve of claim 3, wherein the high pressure barrier medium blocks leakage of gaseous material through the valve, and wherein: the outer wall of the sealing pipe (5) is tightly attached to the valve main pipe (1), the sealing pipe (5) is tightly attached to the inner wall of the air inlet pipe (11), and compressed inert gas is filled in a groove of the sealing pipe (5).

6. The dual body valve of claim 1, wherein the high pressure barrier medium blocks leakage of gaseous material through the valve, and wherein: left valve rod (10) movable mounting is in valve rod seat (19), fixed mounting has the flange between return bend (18), connecting pipe (20) and the valve person in charge (1), return bend (18) totally two, another fixed mounting is on the right side of outlet duct (6).

7. The dual body valve of claim 1, wherein the high pressure barrier medium blocks leakage of gaseous material through the valve, and wherein: go up piston (12) and valve and be responsible for fixed mounting between (1) and have last sealing washer, fixed mounting has left sealing washer between left side piston (8) and valve plate (7), fixed mounting has right sealing washer between right side piston (14) and the valve is responsible for (1).

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