CN208331312U - A kind of multi-sealed pressurization ball valve - Google Patents
A kind of multi-sealed pressurization ball valve Download PDFInfo
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- CN208331312U CN208331312U CN201820757303.1U CN201820757303U CN208331312U CN 208331312 U CN208331312 U CN 208331312U CN 201820757303 U CN201820757303 U CN 201820757303U CN 208331312 U CN208331312 U CN 208331312U
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- pressurization
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Abstract
The utility model discloses a kind of multi-sealed pressurization ball valves, including main valve body, main valve body includes left and right port and the runner that is connected to left and right port, main valve body is equipped with valve body and pressurization mouth, valve body is set as two, valve body includes the valve seat being arranged in runner, is equipped with spool in valve seat, spool is connected with pneumatic actuator by connection component；Pressurization mouth is set as two groups, and two groups of pressurization mouths are separately positioned on left port and between the valve body of left port between right output port and the valve body of close right output port, and pressurization mouth is connected to runner, and the mouth that pressurizes connects booster by tracheae.The utility model, using double ball-valve structures, simultaneously again using the outer pressurized design of valve, so that forming quadruple sealing structure inside the utility model, valve can be effectively prevent to leak, and double ball-valve structures in be equipped with ball cover, can avoid in the long-term use, between spool and valve seat due to cumulative fluid granule foreign caused by open and close laborious problem.
Description
Technical field
The utility model relates to ball valves, and in particular to a kind of multi-sealed pressurization ball valve.
Background technique
Ball valve can be divided into pneumatic ball valve, electrical ball valve and manual ball valve according to driving method, be mainly used for rising in pipeline
The effect of the flow direction of cutting, distribution and change medium, it only needs the rotating torque with the operation and very little being rotated by 90 °
It can close tightly, be suitable for being used as switch, stop valve.In China, ball valve is widely used in petroleum refining, long defeated pipe
The industries such as line, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel occupy very important status in national economy.Ball
The opening and closing of valve is driven by valve rod, makes spool by valve rod and rotate around ball valve axis to realize the opening and closing of valve, can be flexible
Interflow, shunting and the switching of flow direction of medium are controlled, while any channel can also be closed and other two channel is made to be connected.It is existing
The generally existing following problems of ball valve:
(1) leakproofness is poor, and ball valve in the long-term use, can be tight because spool opposite valve seat moves when opening or closing
The abrasion of weight or scratch spool or valve seat, thus make valve loss of seal performance；
(2) opening and closing is laborious, and since valve is internal in use, there are certain pressures, and the opening and closing torque of valve can be made larger,
It is not convenient enough to open and close, time-consuming and laborious.In addition, causing product between spool and valve seat since spool in use constantly rotates
Tired fluid particle causes opening and closing difficult.
In view of this, being badly in need of improving existing ball valve, increase its sealing performance, and the operation for reducing its opening and closing is difficult
Degree.
Utility model content
Technical problem to be solved in the utility model is that poor sealing performance existing for existing ball valve and opening and closing are inadequate just
Prompt problem.
In order to solve the above-mentioned technical problem, technical solution used by the utility model is to provide a kind of multi-sealed pressurization
Ball valve, including main valve body, the main valve body include left and right port with the runner that is connected to the left and right port, on the main valve body
It is equipped with:
Valve body is set as two, and the valve body includes the valve seat being arranged in the runner, is equipped with valve in the valve seat
Core, the spool are connected with pneumatic actuator by connection component；
Pressurize mouth, is set as two groups, and pressurization mouth described in two groups is separately positioned on the left port and close to the left port
The valve body between the right output port and between the valve body of the right output port, the pressurization mouth connection stream
Road, the pressurization mouth are connected with booster by tracheae.
In the above scheme, two valve seats are forming the cavity being located between two valve seats in the runner.
In the above scheme, the connection component includes valve rod and aerodynamic coupling, the valve rod connect the spool and
The aerodynamic coupling, the aerodynamic coupling connect the pneumatic actuator.
In the above scheme, the pneumatic actuator includes cylinder, and disk is connected on the piston rod of the cylinder, described
Disk is connected with the aerodynamic coupling.
In the above scheme, the valve body further includes valve deck and gland, and the gland is arranged in the valve deck
Interior, the valve deck is arranged on the outer wall of the main valve body, and the valve rod is threaded through in the valve deck and the gland, institute
It states to compress between valve deck and gland and is provided with airtight and watertight padding.
In the above scheme, the spool is spherical valve core, and the bottom of the valve seat is close equipped with being adapted to the spool
Blocking set.
In the above scheme, the valve deck is equipped with bracket, and the pneumatic actuator fixed setting is on the bracket.
In the above scheme, connecting flange is respectively equipped on the left and right port.
In the above scheme, the booster is equipped with relief valve.
Compared with prior art, the utility model, using double ball-valve structures, while again using the outer pressurized design of valve, so that
Quadruple sealing structure is formed inside the utility model, valve can be effectively prevent to leak, and ball cover is equipped in double ball-valve structures,
Can avoid in the long-term use, between spool and valve seat due to cumulative fluid granule foreign caused by opening and closing is laborious asks
Topic.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial sectional view of the utility model；
Fig. 3 is A-A diagrammatic cross-section in Fig. 2；
Fig. 4 is the front view of right output port in the utility model.
Specific embodiment
The utility model provides a kind of multi-sealed pressurization ball valve, and the column valve inner of ball valve is equipped with multi-sealed knot
Structure can effectively solve the problem that poor air-tightness existing for existing ball valve and inconvenient the problem of opening and closing.With reference to the accompanying drawings of the specification and
Specific embodiment is described in detail the utility model.
As shown in figures 1-4, it includes main valve body 6, main valve body 6 that the utility model, which provides the multi-sealed pressurization ball valve of one kind,
Including left and right port and the runner for being connected to left and right port.Main valve body 6 is equipped with sealing pressing device, and sealing pressing device includes
Two valve bodies, two groups of pressurization mouths, a booster 17 and two pneumatic actuators, wherein valve body includes valve seat and spool, valve
Seat is arranged in runner, and spool is arranged in valve seat, and spool is spherical valve core.Two spools pass through two connection components respectively
It is connect with two pneumatic actuators.Booster 17 is connect by tracheae 16 with pressurization mouth.
The utility model, two valve bodies are arranged at intervals on main valve body 6, play the role of dual-seal.Specifically, two
Valve body is respectively left side valve body 3 and right side valve body 9, and two spools are respectively the left spool 10a being arranged in left side valve body 3 and set
It sets and is equipped with right spool 10b in right side valve body 9.Two groups of pressurization mouths are respectively left side pressurization mouth 15a and right side pressurization mouth 15b.This
Utility model realizes the multi-sealed pressurization function of main valve body 6 by two valve bodies and two groups of pressurizations, has preferable sealing effect
Fruit.
In the utility model, two valve seats are respectively left valve seat 4a and right valve seat 4b, and left side valve body 3 includes valve seat 4a, right
Side valve body 9 includes right valve seat 4b.Left valve seat 4a and right valve seat 4b is being formed between left valve seat 4a and right valve seat 4b in runner
Cavity.Left spool 10a and right spool 10b are separately positioned in left valve seat 4a and right valve seat 4b.Two pneumatic actuator difference
For left pneumatic actuator 1a and right pneumatic actuator 1b.Specifically, left pneumatic actuator 1a and right pneumatic actuator 1b respectively with
Left spool 10a is connected with right spool 10b.Left port and the master between the valve body of left port is arranged in left side pressurization mouth 15a
On valve body 6, right side pressurization mouth 15b is arranged on the main valve body 6 between right output port and the valve body of close right output port.Pressurize mouth in left side
15a and right side pressurization mouth 15b are connected to runner, left side pressurization mouth 15a and right side pressurization mouth 15b pass through respectively left tracheae 16a and
Right tracheae 16b is connect with booster 17.The principle of the utility model realization operation readiness and airtight sexual function are as follows:
(1) left pneumatic actuator 1a and right pneumatic actuator 1b drives left spool 10a and right spool 10b to rotate respectively and realizes
The opening and closing of the opening and closing of main valve body 6,9 co- controlling main valve body 6 of left side valve body 3 and right side valve body has dual control effect.This
Outside, by the way that left pneumatic actuator 1a and right pneumatic actuator 1b can spool 10a and right spool 10b application pressure makes it to the left respectively
It is in close contact respectively with left side valve body 3 and right side valve body 9, further increases air-tightness.Specifically, when main valve body 6 is closed, left valve
It is fitted closely between core 10a and left valve seat 4a, forms the first good sealing structure of weight.After long-time service, left spool 10a with
When cannot be fitted closely between left valve seat 4a, it will leak.Booster 17 works at this time, is pressurizeed the valve to the left of mouth 15 by left side
Core 10a applies pressure, so that left spool 10a and left valve seat 4a are fitted closely together again, prevents from leaking.Still can not when at this time
When sealing, then sealing is achieved the purpose that by fitting closely between right spool 10b and right valve seat 4b.As right spool 10b and the right side
Between valve seat 4b can not self-sealing when, booster 17 start to work, by right side pressurize mouth 15b to the right spool 10b apply pressure,
So that right spool 10b is resealed with right valve seat 4b.Thus achieve the effect that four resealings, prevent from revealing；
(2) due to being formed with cavity between valve seat 4a left in runner and right valve seat 4b, and left side pressurization mouth 15a is arranged on a left side
On main valve body 6 between port and the valve body of close left port, right output port is arranged in and close to right output port in right side pressurization mouth 15b
On main valve body 6 between valve body, that is, left valve seat 4a, right valve seat 4b and cavity are arranged at left side pressurization mouth 15a and right side adds
It presses in the runner between mouth 15b.It can adjust the pressure in runner by booster 17, make left side valve body 3 and 9 two sides of right side valve body
Pressure balance, and then solve existing ball valve since the pressure difference of the left and right port of runner makes ball valve pressure at both sides difference institute
It is caused to be difficult to the case where opening and closing.Specifically, booster 17 can carry out runner inside when needing control bound body 6 to open and close
Thus pressure release or pressurization facilitate opening and closing.
In the utility model, connection component includes valve rod 14 and aerodynamic coupling 13, and it is gentle dynamic that valve rod 14 connects spool
Axis device 13, aerodynamic coupling 13 connect pneumatic actuator.Pneumatic actuator includes cylinder, is connected with circle on the piston rod of cylinder
Disk, disk are connected with aerodynamic coupling 13.
The utility model realizes pressurization, the pressure release to valve body by booster 17, when valve body is closed, in booster 17
Under the action of, enter extraneous gas source by the mouth that pressurizes and realizes pressurization in valve body.Booster 17 is equipped with relief valve, when needing valve
When body is opened, pressure release is carried out by inside of the relief valve to valve body, thus low valve internal pressure, realizes easy to open, province
When labour-saving function.
In order to guarantee air-tightness, valve body further includes valve deck 11 and gland 12, and gland 12 is arranged in valve deck 11,
Valve deck 11 is arranged on the outer wall of main valve body 6, and valve rod 14 is threaded through in valve deck 11 and gland 12, valve deck 11 and gland
It is compressed between 12 and is provided with airtight and watertight padding.The bottom of valve seat is equipped with the ball cover 5 being adapted to spool, has preferable air-tightness.Valve
Lid 11 is equipped with bracket 7, and pneumatic actuator is fixed on the bracket 7.
For the ease of the installation of main valve body 6, be respectively equipped with connecting flange on the left and right port of main valve body 6, for to even
The pipeline connect is connected, and structure is simple, and installation is quick.
Compared with prior art, the utility model has the beneficial effects that:
The utility model uses the outer pressurized design of valve using double ball-valve structures again, so that shape inside the utility model
At quadruple sealing structure, valve can be effectively prevent to leak.Simultaneously as double ball-valve structures are used, when one of valve
When body can not work normally, another valve body can play a role, and solve the problems, such as maintenance difficult, while reduce two ball valves
The length of concatenation saves space.By using pressurized design outside valve, so that valve internal pressure in opening and closing is controllable, valve is opened
It closes laborsaving；
It is equipped with ball cover 5 in double ball-valve structures of the utility model, can avoid in the long-term use, because of spool and valve seat
Between cumulative fluid granule foreign and caused by open and close laborious problem.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn that the enlightenments in the utility model
Under the structure change made, it is all that there is same or similar technical solution with the utility model, each fall within the utility model
Within protection scope.
Claims (9)
1. a kind of multi-sealed pressurization ball valve, including main valve body, the main valve body include left and right port be connected to it is described left and right
The runner of port, which is characterized in that the main valve body is equipped with:
Valve body is set as two, and the valve body includes the valve seat being arranged in the runner, is equipped with spool, institute in the valve seat
It states spool and pneumatic actuator is connected with by connection component；
Pressurize mouth, is set as two groups, and pressurization mouth described in two groups is separately positioned on the left port and the institute close to the left port
It states between valve body between the right output port and the valve body of the close right output port, the pressurization mouth is connected to the runner,
The pressurization mouth is connected with booster by tracheae.
2. a kind of multi-sealed pressurization ball valve according to claim 1, which is characterized in that two valve seats are in the stream
The cavity being located between two valve seats is formed in road.
3. a kind of multi-sealed pressurization ball valve according to claim 1, which is characterized in that the connection component includes valve rod
And aerodynamic coupling, the valve rod connect the spool and the aerodynamic coupling, the aerodynamic coupling connection is described pneumatic
Actuator.
4. a kind of multi-sealed pressurization ball valve according to claim 1, which is characterized in that the pneumatic actuator includes gas
Cylinder is connected with disk on the piston rod of the cylinder, and the disk is connected with aerodynamic coupling.
5. a kind of multi-sealed pressurization ball valve according to claim 3, which is characterized in that the valve body further include valve deck and
Gland, the gland are arranged in the valve deck, and the valve deck is arranged on the outer wall of the main valve body, the valve
Bar is threaded through in the valve deck and the gland, is compressed between the valve deck and gland and is provided with airtight and watertight padding.
6. a kind of multi-sealed pressurization ball valve according to claim 1, which is characterized in that the spool is spherical valve core,
The bottom of the valve seat is equipped with the sealing ball cover being adapted to the spool.
7. a kind of multi-sealed pressurization ball valve according to claim 5, which is characterized in that the valve deck is equipped with bracket,
The pneumatic actuator fixed setting is on the bracket.
8. a kind of multi-sealed pressurization ball valve according to claim 1, which is characterized in that on the left and right port respectively
Equipped with connecting flange.
9. a kind of multi-sealed pressurization ball valve according to claim 1, which is characterized in that the booster is equipped with pressure release
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820757303.1U CN208331312U (en) | 2018-05-21 | 2018-05-21 | A kind of multi-sealed pressurization ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820757303.1U CN208331312U (en) | 2018-05-21 | 2018-05-21 | A kind of multi-sealed pressurization ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331312U true CN208331312U (en) | 2019-01-04 |
Family
ID=64774532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820757303.1U Active CN208331312U (en) | 2018-05-21 | 2018-05-21 | A kind of multi-sealed pressurization ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208331312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488423A (en) * | 2018-05-21 | 2018-09-04 | 浙江金龙自控设备有限公司 | A kind of multi-sealed supercharging ball valve |
-
2018
- 2018-05-21 CN CN201820757303.1U patent/CN208331312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488423A (en) * | 2018-05-21 | 2018-09-04 | 浙江金龙自控设备有限公司 | A kind of multi-sealed supercharging ball valve |
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