CN206668996U - A kind of parallel gate valve structure with pod apertures - Google Patents
A kind of parallel gate valve structure with pod apertures Download PDFInfo
- Publication number
- CN206668996U CN206668996U CN201720184144.6U CN201720184144U CN206668996U CN 206668996 U CN206668996 U CN 206668996U CN 201720184144 U CN201720184144 U CN 201720184144U CN 206668996 U CN206668996 U CN 206668996U
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- CN
- China
- Prior art keywords
- valve
- pod apertures
- lock valve
- convex
- lock
- 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.)
- Expired - Fee Related
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Abstract
It the utility model is related to a kind of parallel gate valve structure with pod apertures, including valve body (2), valve rod (7), bonnet (8) and valve, transmission orifice plate (1) is also fixedly connected with the lower section of valve, pod apertures with the inlet and outlet pipeline for connecting valve body (2) on the transmission orifice plate (1), described valve includes the recessed lock valve (3) and convex lock valve (5) using the concavo-convex pairing of dissection type, described recessed lock valve (3) and convex lock valve (5) being connected with valve rod (7) independently, and it is in plane contact with the sealing surface of the valve body (2).Compared with prior art, brake gate door of the present utility model uses direct current parallel slide type structure, sealing is realized by the pressure difference for acting on flap both sides, without applying active force on valve rod again, thus operation square is small, and valve rod is not flexible, in addition, the setting of pod apertures can ensure smaller flow resistance, meanwhile, whole gate valve can use in more than 520 DEG C high temperature.
Description
Technical field
A kind of gate valve structure is the utility model is related to, more particularly, to a kind of band pod apertures suitable for high temperature and high pressure condition
Parallel gate valve structure.
Background technology
Gate valve is widely used in Ship System and coal fired thermal power plant, and important work is all played in each system of power plant
With.Because the operating mode of gate valve operation is considerably complicated, often face that high temperature, High Pressure Difference, flow resistance be small, big flow, while to ensure height
Life-span of tightness and long period etc. requires.
The current API gate valves with water conservancy diversion orifice plate existing on the market, using the valve seat of rubber seal lining, highest uses
200 DEG C of temperature, it is impossible to meet the requirement of worst hot case.Common parallel double-flashboard gate valve, lack pod apertures, flow resistance is relatively
Height, the pipeline environment for having low flow resistance requirement is not suitable for it.
In summary, for prior art a kind of the defects of, it is accordingly required in particular to parallel gate valve knot of HTHP with pod apertures
Structure, it is mentioned above to solve the problems, such as.
Utility model content
The purpose of this utility model is exactly to provide a kind of band pod apertures the defects of overcoming above-mentioned prior art to exist
Parallel gate valve structure.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of parallel gate valve structure with pod apertures, including valve body, valve rod, bonnet and valve, it is also solid in the lower section of valve
Surely transmission orifice plate is connected with, the pod apertures with the inlet and outlet pipeline for connecting valve body on the transmission orifice plate, it is characterised in that described
Valve include the recessed lock valve using the concavo-convex pairing of dissection type and convex lock valve, described recessed lock valve and convex lock valve independently with
Valve rod connects, and is in plane contact with the sealing surface of the valve body.
As further embodiment, internal cavities are provided with the recessed lock valve and convex lock valve centre of bumps docking, inside
Portion's cavity is being provided with stroke surplus, the both ends of the spring built with spring, the internal cavities along in inlet and outlet duct orientation
The recessed lock valve and convex lock valve are abutted respectively, and so that the recessed lock valve and convex lock valve can be expert at along spring effect force direction more than journey
Measure in the stroke of limitation and slide.
As further embodiment, when described recessed lock valve and convex lock valve contact with the sealing surface of the valve body,
The stroke surplus is stretched over maximum.
As further embodiment, the top of described recessed lock valve and convex lock valve is equipped with to be passed in and out perpendicular to valve body
The deep-slotted chip breaker of mouth duct orientation, is provided with clip, the both ends of the clip are respectively protruding into the deep-slotted chip breaker on valve rod.Valve opens
During closing, clip can play position-limiting action to concave, convex lock valve, ensure concave, convex lock valve under the action of the spring can it is smooth with
Valve rod moves up and down.Further preferred, the size of clip is less than the cross-sectional width of deep-slotted chip breaker, and then clip will not be limited
Make the position adjustment of concavo-convex lock valve.
As further embodiment, the setting of described transmission orifice plate meets：When valve wide open, orifice plate is driven
On pod apertures just connect into a homogeneous tube with the inlet and outlet pipeline of the valve body.
As further embodiment, the junction at the top of described bonnet with valve rod is additionally provided with packing cavity, is filling out
Material intracavitary is provided with filler, is additionally provided with gland on described packing cavity, the gland is bolted on bonnet.
Compared with prior art, the utility model has advantages below：
(1) pressure difference is different before and after valve, and along with the flowing of medium, flap is always offset to outlet side, by medium
Power causes outlet side flap to be bonded with valve body sealing surface, and pressure difference is bigger, and fitting is closer, without application acts on valve rod again
Power, thus operation square is small, valve rod is not flexible.
(2) valve in the utility model has been assembled by two pieces of various forms of circular lock valves by the way of bumps are matched
Come, and a spring has been clamped between two lock valves, therefore, separate recessed lock valve and convex lock valve can be free with valve seat
To match somebody with somebody, the pressure difference between height nip, which can provide enough pressure, makes valve have good self sealss, when pressure difference is higher, then valve
The sealing of door is better.
(3) it is brought into close contact in the presence of concavo-convex lock valve High Pressure Difference, can be eliminated when lock valve moves up and down caused shearing force
The rubbish attached on valve seat, so as to reduce the abrasion to flap, valve seat.
(4) orifice plate is driven when valve is all turned on, and is formed one whole straight tube with the inlet and outlet of valve body, flow resistance can be reduced to
It is minimum.
(5) setting of packing cavity etc. is effectively guaranteed the sealing between valve rod and valve body.
(6) valve sealing face uses Si Taili hard alloy, has higher temperature in use and intensity, less friction system
Number.
(6) valve is sealed with sealing surface using hard, no elastomeric material.Highest can bear 520 DEG C of high temperature.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure, 1- transmission orifice plates, 2- valve bodies, the recessed lock valves of 3-, 4- clips, the convex lock valves of 5-, 6- springs, 7- valve rods, 8- bonnets.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of parallel gate valve structure with pod apertures, its structure is as shown in figure 1, including valve body 2, valve rod 7, bonnet 8 and valve
Door, transmission orifice plate 1 is also fixedly connected with the lower section of valve, the inlet and outlet pipeline of connection valve body 2 is carried on the transmission orifice plate 1
Pod apertures, valve include the recessed lock valve 3 and convex lock valve 5 using the concavo-convex pairing of dissection type, and recessed lock valve 3 and convex lock valve 5 are independently
Be connected with valve rod 7, and be in plane contact with the sealing surface of valve body 2.So, when recessed lock valve 3 and convex lock valve 5 are by high-pressure side
Pressure after, upper-lower position can float in certain scope, its seal Reliability comparotive it is good, the requirement to upper-lower position
It is not high, too big push-pull effort need not be applied on valve rod 7, work torque is small, open and close that speed is fast, relative that lock valve, valve body 2 are rushed
Lose small.
The sealing surface of valve and valve body 2 is sealed using hard, no elastomeric material.Highest can bear 520 DEG C of high temperature.Together
When, for zero leakage requirement, valve uses the spring 6Inconel X750 materials of high shear modulus under high temperature, had at high temperature
Larger pretightning force and seal pressure.In addition, medium can assist valve seal.For the requirement of valve service life, valve seal
Face uses Si Taili hard alloy, has higher temperature in use and intensity, less coefficient of friction.
As further embodiment, internal cavities are provided with the recessed lock valve 3 and the centre of convex lock valve 5 of bumps docking,
Internal cavities are being provided with stroke surplus, the both ends difference of spring 6 along in inlet and outlet duct orientation built with spring 6, internal cavities
Recessed lock valve 3 and convex lock valve 5 are abutted, and recessed lock valve 3 and convex lock valve 5 can be limited along the force direction of spring 6 in stroke surplus
Stroke in slide.Recessed lock valve 3 and convex lock valve 5 can be matched freely, and the pressure difference between height nip, which can provide enough pressure, to be made
Valve has good self sealss, and when pressure difference is higher, then the sealing of valve is better.Meanwhile concavo-convex lock valve 5 is in High Pressure Difference
Be brought into close contact under effect, moved up and down when flap caused by shearing force can eliminate the rubbish that is attached on valve seat, so as to reduce
Abrasion to flap, valve seat.
As further embodiment, when recessed lock valve 3 and convex lock valve 5 contact with the sealing surface of valve body 2, stroke surplus
It is stretched over maximum.
As further embodiment, the top of recessed lock valve 3 and convex lock valve 5 is equipped with to be imported and exported perpendicular to valve body 2
The deep-slotted chip breaker of duct orientation, clip 4 is installed on valve rod 7, the both ends of the clip 4 are respectively protruding into deep-slotted chip breaker.Valve opening and closing
During, clip can play position-limiting action to concave, convex lock valve, ensure that concave, convex lock valve under the action of the spring can be smooth with valve
Bar moves up and down.
As further embodiment, the setting of transmission orifice plate 1 meets：When valve wide open, it is driven on orifice plate 1
Pod apertures just connect into a homogeneous tube with the inlet and outlet pipeline of valve body 2.The flow resistance so set is relatively smaller.
As further embodiment, the junction of the top of bonnet 8 and valve rod 7 is additionally provided with packing cavity, in packing cavity
It is interior to be provided with filler, gland is additionally provided with packing cavity, the gland is bolted on bonnet 8.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using practicality
It is new.Person skilled in the art obviously can easily make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art according to announcement of the present utility model, do not depart from improvement that the utility model category made and
Modification all should be within the scope of protection of the utility model.
Claims (6)
1. a kind of parallel gate valve structure with pod apertures, including valve body (2), valve rod (7), bonnet (8) and valve, under valve
Side is also fixedly connected with transmission orifice plate (1), and the pod apertures for the inlet and outlet pipeline for connecting valve body (2) are carried on the transmission orifice plate (1),
Characterized in that, described valve includes the recessed lock valve (3) using the concavo-convex pairing of dissection type and convex lock valve (5), described recessed lock
Valve (3) and convex lock valve (5) being connected with valve rod (7) independently, and be in plane contact with the sealing surface of the valve body (2).
2. a kind of parallel gate valve structure with pod apertures according to claim 1, it is characterised in that in the recessed of bumps docking
Internal cavities are provided among lock valve (3) and convex lock valve (5), internally cavity enters built with spring (6), the internal cavities on edge
Outlet conduit direction is provided with stroke surplus, and the both ends of the spring (6) abut the recessed lock valve (3) and convex lock valve (5) respectively,
And the recessed lock valve (3) and convex lock valve (5) can be slided along spring (6) force direction in the stroke that stroke surplus limits
It is dynamic.
A kind of 3. parallel gate valve structure with pod apertures according to claim 2, it is characterised in that described recessed lock valve
(3) when and convex lock valve (5) is contacted with the sealing surface of the valve body (2), the stroke surplus is stretched over maximum.
A kind of 4. parallel gate valve structure with pod apertures according to claim 2, it is characterised in that described recessed lock valve
(3) and convex lock valve (5) top be equipped with perpendicular to valve body (2) inlet and outlet duct orientation deep-slotted chip breaker, installed on valve rod (7)
There is clip (4), the both ends of the clip (4) are respectively protruding into the deep-slotted chip breaker.
A kind of 5. parallel gate valve structure with pod apertures according to claim 1, it is characterised in that described transmission orifice plate
(1) setting meets：When valve wide open, inlet and outlet pipeline of the pod apertures on orifice plate (1) just with the valve body (2) is driven
Connect into a homogeneous tube.
A kind of 6. parallel gate valve structure with pod apertures according to claim 1, it is characterised in that described bonnet (8)
Top and the junction of valve rod (7) are additionally provided with packing cavity, and filler is provided with packing cavity, filler is additionally provided with described packing cavity
Gland, the gland are bolted on bonnet (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720184144.6U CN206668996U (en) | 2017-02-28 | 2017-02-28 | A kind of parallel gate valve structure with pod apertures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720184144.6U CN206668996U (en) | 2017-02-28 | 2017-02-28 | A kind of parallel gate valve structure with pod apertures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668996U true CN206668996U (en) | 2017-11-24 |
Family
ID=60379537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720184144.6U Expired - Fee Related CN206668996U (en) | 2017-02-28 | 2017-02-28 | A kind of parallel gate valve structure with pod apertures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668996U (en) |
-
2017
- 2017-02-28 CN CN201720184144.6U patent/CN206668996U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 |