CN108626453A - A kind of self-operated type emergency isolation valve - Google Patents
A kind of self-operated type emergency isolation valve Download PDFInfo
- Publication number
- CN108626453A CN108626453A CN201710171756.6A CN201710171756A CN108626453A CN 108626453 A CN108626453 A CN 108626453A CN 201710171756 A CN201710171756 A CN 201710171756A CN 108626453 A CN108626453 A CN 108626453A
- Authority
- CN
- China
- Prior art keywords
- valve body
- fixed
- spring
- self
- feed liquor
- 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
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Classifications
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- 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
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of self-operated type emergency isolation valves, including feed liquor pipe connector, the feed liquor pipe connector is fixed on the top of upper valve body, and upper valve body is connect by screw thread with lower valve body, the bottom of the lower valve body is fixed with liquid outlet connector, it is provided with bolt hole on the feed liquor pipe connector, and it is also equipped with bolt hole on outlet tube connector, spring base fixed frame is fixed among the upper valve body, and it is fixed with spring base among spring base fixed frame, the bottom of the spring base is connect by preloading spring with spring clamping ring, and spring clamping ring is fixed on the top of sealing plate, it is provided with through-hole on the sealing plate.Sealing plate of the present invention is realized with fluid pressure varying motion, is completed the sealing shutdown in single valve seat, is realized the opening and closing of valve itself.
Description
Technical field
The present invention relates to isolating valve equipment technical field, specially a kind of self-operated type emergency isolation valve.
Background technology
It is carried out certainly by the pressure change of medium itself currently, self-operated type isolating valve is a kind of relied only on without the external energy
The dynamic energy-saving product for adjusting pressure has measurement, executes, the comprehensive function of control.It can be used for non-aggressive (maximum temperature
350 DEG C) the media such as liquid, gas and steam pressure control device.Self-operated type isolating valve be widely used in oil, chemical industry,
The industrial departments such as metallurgy, light industry and city heat supply, heating system.The structure of self-operated type isolating valve product by valve body, valve hole part,
The parts such as valve deck, top plate, upper and lower membrane cover, diaphragm, spring, adjusting nut are formed.Self-operated type isolating valve operation principle：Work
The upstream pressure P1 of skill medium by spool, valve seat throttling after, become downstream pressure P2, P2 and be input to execution by connecting pipe
It is acted in top plate in the lower film room of device, the active force of generation cross equal with the reaction of spring determines that spool, valve seat are opposite
Position controls downstream pressure.When the active force that downstream pressure P2 is acted in top plate is consequently increased.At this point, the effect of top plate
Power is more than the reaction force of spring, so that spool is closed the position to valve seat, until the active force of top plate is equal with reactive spring force
Until weighing apparatus.At this moment the circulation area between spool and valve seat is reduced, and flow resistance becomes larger, to make P2 be reduced to setting value.Similarly, work as valve
When pressure P2 is reduced afterwards, action direction is contrary to the above, operation principle when being adjusted here it is downstream pressure.When need change valve
Afterwards when the setting value of pressure P2, adjusting nut can adjust.Existing self-operated type isolating valve is complicated, troublesome in poeration, and occurs
It is unable to on-call maintenance when failure, uses very inconvenient.
Invention content
The purpose of the present invention is to provide a kind of self-operated type emergency isolation valves, to solve mentioned above in the background art ask
Topic, possessed advantageous effect are：Sealing plate of the present invention is realized with fluid pressure varying motion, is completed close in single valve seat
Envelope shutdown, realizes the opening and closing of valve itself.
To achieve the above object, the present invention provides the following technical solutions：A kind of self-operated type emergency isolation valve, including inlet tube
Connector, the feed liquor pipe connector is fixed on the top of upper valve body, and upper valve body is connect by screw thread with lower valve body, under described
The bottom of valve body is fixed with liquid outlet connector, bolt hole is provided on the feed liquor pipe connector, and on outlet tube connector
It is also equipped with bolt hole, spring base fixed frame is fixed among the upper valve body, and spring is fixed among spring base fixed frame
Seat, the bottom of the spring base is connect by preloading spring with spring clamping ring, and spring clamping ring is fixed on the top of sealing plate
Portion is provided with through-hole on the sealing plate.
Preferably, the lower valve body is equipped with sealing ring with outlet tube connector junction.
Preferably, the feed liquor pipe connector is that integral type pours into a mould design, and outlet tube connector and lower valve with upper valve body
Body is integral type cast design.
Preferably, the preloading spring is a kind of component of stainless steel.
Compared with prior art, the beneficial effects of the invention are as follows：The device structure is reasonable, facilitates installation, upper valve body is under
It is connected through a screw thread between valve body, when the equipment breaks down, maintenance personal is facilitated to overhaul, preloading spring connects with sealing plate
It connects, when the pressure in upper valve body is excessive, the pressure that sealing plate is born is more than the pulling force of preloading spring, and sealing plate is transported downwards
Dynamic, when sealing plate and sealing ring compression, then the equipment realizes buffer action, eliminates the intervention of external force.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the vertical view of the present invention；
Fig. 3 is the partial view of the present invention.
In figure：1- feed liquor pipe connectors；2- upper valve bodies；3- spring bases；4- spring base fixed frames；5- preloading springs；6- spiral shells
Line；7- sealing plates；8- through-holes；9- sealing rings；10- lower valve bodies；11- outlet tube connectors；12- bolts hole；13- springs connect
Circle.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, a kind of embodiment provided by the invention：A kind of self-operated type emergency isolation valve, including inlet tube connect
Connector 1, feed liquor pipe connector 1 is fixed on the top of upper valve body 2, and upper valve body 2 is connect by screw thread 6 with lower valve body 10, lower valve
The bottom of body 10 is fixed with liquid outlet connector 11, and bolt hole 12, and outlet tube connector 11 are provided on feed liquor pipe connector 1
On be also equipped with bolt hole 12, spring base fixed frame 4 is fixed among upper valve body 2, and bullet is fixed among spring base fixed frame 4
The bottom of spring abutment 3, spring base 3 is connect by preloading spring 5 with spring clamping ring 13, and spring clamping ring 13 is fixed on sealing plate
7 top, through-hole 8 is provided on sealing plate 7, and lower valve body 10 is equipped with sealing ring 9, feed liquor with 11 junction of outlet tube connector
Pipe connector 1 is that integral type cast designs, and outlet tube connector 11 is that integral type cast is set with lower valve body 10 with upper valve body 2
Meter, preloading spring 5 are a kind of component of stainless steel.
Operation principle：In use, passing through spiral shell with the bolt hole on inlet tube by the bolt hole 12 on feed liquor pipe connector 1
It tethers and connects, the bolt hole 12 on outlet tube connector 11 is bolted with the bolt hole on outlet tube, the equipment is in pipe
It is installed on road, liquid enters in upper valve body 2, when liquid is less than or equal to preloading spring 5 to sealing to the pressure of sealing plate 7
When the pulling force of plate 7, liquid normally enters lower valve body 10 by the through-hole 8 on sealing plate 7, and is entered by outlet tube connector 11
Outlet tube, when the pressure of upper valve body 2 is excessive, pressure that sealing plate 7 is born is more than the pulling force of preloading spring, sealing plate 7 to
Lower movement, when sealing plate 7 and the compression of sealing ring 9, then the equipment realizes buffer action.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (4)
1. a kind of self-operated type emergency isolation valve, including feed liquor pipe connector (1), it is characterised in that：The feed liquor pipe connector (1)
It is fixed on the top of upper valve body (2), and upper valve body (2) is connect by screw thread (6) with lower valve body (10), the lower valve body (10)
Bottom is fixed with liquid outlet connector (11), bolt hole (12) is provided on the feed liquor pipe connector (1), and outlet tube connects
It is also equipped with bolt hole (12) on head (11), spring base fixed frame (4) is fixed among the upper valve body (2), and spring base is solid
Determine to be fixed with spring base (3) among frame (4), the bottom of the spring base (3) passes through preloading spring (5) and spring clamping ring (13)
Connection, and spring clamping ring (13) is fixed on the top of sealing plate (7), and through-hole (8) is provided on the sealing plate (7).
2. a kind of self-operated type emergency isolation valve according to claim 1, it is characterised in that：The lower valve body (10) and go out liquid
Pipe connector (11) junction is equipped with sealing ring (9).
3. a kind of self-operated type emergency isolation valve according to claim 1, it is characterised in that：The feed liquor pipe connector (1)
It is that integral type cast designs, and outlet tube connector (11) is that integral type cast is designed with lower valve body (10) with upper valve body (2).
4. a kind of self-operated type emergency isolation valve according to claim 1, it is characterised in that：The preloading spring (5) is one
The component of kind stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710171756.6A CN108626453A (en) | 2017-03-17 | 2017-03-17 | A kind of self-operated type emergency isolation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710171756.6A CN108626453A (en) | 2017-03-17 | 2017-03-17 | A kind of self-operated type emergency isolation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108626453A true CN108626453A (en) | 2018-10-09 |
Family
ID=63706530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710171756.6A Pending CN108626453A (en) | 2017-03-17 | 2017-03-17 | A kind of self-operated type emergency isolation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108626453A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485494Y (en) * | 2001-01-04 | 2002-04-10 | 彭派 | Valve for preventing pressure meter from blow out |
| CN202597817U (en) * | 2012-05-14 | 2012-12-12 | 成都欧迅海洋工程装备科技有限公司 | Matching structure for valve seat and valve sheet of plate valve |
| CN202646799U (en) * | 2012-06-18 | 2013-01-02 | 上海阀门厂有限公司 | Ultra-low voltage differential check valve |
-
2017
- 2017-03-17 CN CN201710171756.6A patent/CN108626453A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2485494Y (en) * | 2001-01-04 | 2002-04-10 | 彭派 | Valve for preventing pressure meter from blow out |
| CN202597817U (en) * | 2012-05-14 | 2012-12-12 | 成都欧迅海洋工程装备科技有限公司 | Matching structure for valve seat and valve sheet of plate valve |
| CN202646799U (en) * | 2012-06-18 | 2013-01-02 | 上海阀门厂有限公司 | Ultra-low voltage differential check valve |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181009 |
|
| RJ01 | Rejection of invention patent application after publication |