CN202580076U - Gate valve with replaceable valve seats - Google Patents
Gate valve with replaceable valve seats Download PDFInfo
- Publication number
- CN202580076U CN202580076U CN 201220219726 CN201220219726U CN202580076U CN 202580076 U CN202580076 U CN 202580076U CN 201220219726 CN201220219726 CN 201220219726 CN 201220219726 U CN201220219726 U CN 201220219726U CN 202580076 U CN202580076 U CN 202580076U
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- CN
- China
- Prior art keywords
- valve
- gate
- valve seat
- seat
- gate valve
- 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
The utility model discloses a gate valve with replaceable valve seats. The sealing surfaces of the valve seats can be repaired, so that the sealing defect of the gate valve is repaired. The gate valve comprises a valve body, the valve seats, a valve plate, a valve plate control mechanism and a pair of gate valve short pipes, wherein both ends of each gate valve short pipe are provided with flanges; the valve seats are a pair of pipe-type pieces which is positioned on two sides of the valve plate respectively and in which through holes are formed; one end of each valve seat is a valve seat flange end which is positioned between the valve body and each gate valve short pipe; the other end of each valve seat is a valve seat sealing end which penetrates through the valve body; and the end face of each valve seat sealing end is contacted with the valve plate. The gate valve has a very simple structure, and the valve seats of the gate valve can be conveniently and quickly replaced, feasibility and reliability conditions are provided for repairing the valve seats by various mechanical methods, waste can be reduced, and cost can be saved; and the gate valve is particularly suitable for high temperature pipe networks, high pressure pipe networks and large pipe diameter pipe networks, and valve plate and valve seat components of various series of gate valves can be manufactured in a standardized mode.
Description
Technical field
The utility model relates to a kind of gate valve, especially a kind of gate valve of replaceable valve seat.
Background technique
Gate valve in use, in most cases, the reason that its critical defect, maintenance position and whole valve are scrapped is because the mating face of valve plate and valve seat is not tight, the valve internal leakage that causes.Usually the gate valve valve plate can take out reparation in valve chamber, yet the valve seat of gate valve process built-up welding, processing in valve chamber do not have special tool and material can't take out processing reparation.In case poorly sealed defective occurs, for general applying unit,, the gate valve that changes then scrapped processing toward having only the integral replacing gate valve.
The model utility content
In order to overcome the existing in a single day poorly sealed deficiency of often scrapping of gate valve, the utility model technical problem to be solved provide a kind of can be to the gate valve of sealing surface of seat place under repair with the replaceable valve seat of repairing the Gate-valve sealing defective.
The utility model solves the technological scheme that its technical problem adopted: the gate valve of replaceable valve seat; Comprise valve body, valve seat, valve plate and valve plate operating mechanism, comprise that also a pair of two ends are the gate valve short tube of flange, said valve seat is a pair of tubular member with through hole that lays respectively at the valve plate both sides; One end of valve seat is the valve seat flange end; The valve seat flange end is between valve body and gate valve short tube, and the other end of valve seat is the valve base sealing end, and the valve base sealing end penetrates in the valve body and its end face contacts with valve plate.
The mating face that said valve plate both sides contact with the end face of valve base sealing end is the plane that is parallel to each other.
The mating face that said valve plate both sides contact with the end face of valve base sealing end is symmetrical inclined-plane.
The beneficial effect of the utility model is: the gate valve that a kind of structure is very simple, can change the gate valve valve seat quickly and easily is provided, for repairing valve seat with various mechanical methods feasibility and reliability conditions is provided, can reduce and scrap, reduce expenses; Its structural type is specially adapted to the use of high temperature, high pressure, big caliber pipe network, and can carry out the standardization manufacturing to valve plate, the valve component of the gate valve of various series, forms industry standard and NBS, is even international standard.
Description of drawings
Fig. 1 is the plan view of the utility model.
Fig. 2 is the schematic representation that valve plate is mentioned among Fig. 1.
Fig. 3 is another schematic representation of the utility model.
Fig. 4 is the schematic representation that valve plate is mentioned among Fig. 3.
Be labeled as gate valve short tube 1, flange 2, valve seat 3, valve plate 4, end face 5, flange gasket 6, valve body 7, valve plate operating mechanism 8, through hole 9, mating face 10, center line 11, valve flange 12, valve seat flange end 31, valve base sealing end 32 among the figure.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4; The gate valve of the replaceable valve seat of the utility model comprises valve body 7, valve seat 3, valve plate 4 and valve plate operating mechanism 8, and valve plate operating mechanism 8 can adopt the structure identical with existing gate valve; Comprise that also two ends are a pair of gate valve short tube 1 of flange 2; Its valve seat 3 is for laying respectively at a pair of tubular member with through hole 9 of valve plate 4 both sides, and an end of valve seat 3 is a valve seat flange end 31, and valve seat flange end 31 is between valve body 7 and gate valve short tube 1; The other end of valve seat 3 is a valve base sealing end 32, and valve base sealing end 32 penetrates in the valve body 7 and its end face 5 contacts with valve plate 4.This gate valve has improved shape and the Connecting format of valve seat 3 with valve body 7; Make valve seat 3 and valve body 7 to be separated from each other; Not only valve plate can be repaired, corresponding valve seat also can be repaired; Disassembling valve seat and repair sealing surface of seat when the Gate-valve sealing defective occurring provides condition, thereby can prolong the working life of gate valve, reduces expenses.Its structure is very simple, cheap for manufacturing cost, easy to maintenance quick, can completely change, use valve seat 3 and valve plate 4, and valve body 7 and gate valve short tube 1 etc. then can use for a long time, practices thrift a large amount of metallic material.
Like Fig. 1, shown in Figure 3; Valve plate operating mechanism 8 can adopt identical with existing gate valve or similar structure; Be generally and make its valve plate 4 along perpendicular to the flexible straight line motion driving mechanism of pipeline flow-direction direction, like the threaded adjusting structure etc., and for ease of maintenance valve plate 4; On the moving direction of valve plate 4, valve body 7 is separable.
According to different applications; Can specifically design with the mating face 10 that the end face 5 of valve base sealing end 32 contacts said valve plate 4 both sides; Usually should select this mating face 10 for the plane that is parallel to each other or be symmetrical inclined-plane each other, thereby be convenient to valve plate operating mechanism 8 valve plate 4 propellings or extraction.
Therefore according to the structural design of valve plate 4, the end face 5 of said valve base sealing end 32 generally should exceed the internal surface of valve body 7, and its valve plate 4 is not contacted with the internal surface of valve body 7, can not cause the wearing and tearing of valve body 7, only need safeguard or repairs valve seat 3 in using.
Certainly, the end face 5 of valve base sealing end 32 also can be concordant with the internal surface of valve body 7, and the mode that 5 wearing and tearing can adopt built-up welding to polish like end face under this kind situation is repaired.
Like Fig. 1, shown in Figure 3; Be provided with flange gasket 6 between said valve seat flange end 31 and the valve body 7; Through the thickness of adjustment flange gasket 6, can adjust the position of the end face 5 of valve base sealing end 32 slightly, thus the gap between adjustment valve seat 3 and the valve plate 4; Is under the prerequisite of uniform wear at valve seat 3 with valve plate 4, can reduce the repair time.
Embodiment one:
As depicted in figs. 1 and 2; One end of valve seat 3 is that the end face 5 of valve base sealing end 32 can be realized contacting entirely when gate valve is closed with the mating face 10 of valve plate 4; Mating face 10 is symmetrical inclined-plane; Its symmetry center face is for the movement locus through valve plate 4 and perpendicular to the plane of the center line 11 of through hole 9; Valve seat 3 the other ends are valve seat flange end 31, and valve seat flange end 31 places between valve body 7 and the gate valve short tube 1, and are clamped by flange 2 and valve flange 12 under the fastening effect of bolt through flange gasket 6.Valve seat 3 is provided with through hole 9, and the through hole 9 of the valve seat 3 of its both sides forms the medium channel that is communicated with outside gate valve short tube 1 with the gate valve chamber when valve plate 4 is opened.Do not have a bolt, one group of spring and threaded linkage structure in the valve pocket, ensured the convenience of the safe handling and the maintenance of valve.
When the valve plate 4 of gate valve was in closed condition, the end face 5 of two mating faces, 10 meetings of valve plate 4 and the valve seat 3 of its both sides contacted, and plays the effect that intercepts media flow; When the valve plate 4 of gate valve was in opening state, the end face 5 of the valve seat 3 of both sides was left on two mating faces 10 of valve plate 4, and making has not had obstruct between the through hole 9 of valve seat 3 of both sides, made flowing medium in the valve body 7 of gate valve, to flow.
Embodiment two:
Like Fig. 3 and shown in Figure 4, all the other are with embodiment one, and just the mating face 10 of valve plate 4 is the plane that is parallel to each other, and this plane is vertical with the center line 11 of said through hole 9.
Claims (3)
1. the gate valve of replaceable valve seat; Comprise valve body (7), valve seat (3), valve plate (4) and valve plate operating mechanism (8); It is characterized in that: comprise that also a pair of two ends are the gate valve short tube (1) of flange (2); Said valve seat (3) is for laying respectively at a pair of tubular member with through hole (9) of valve plate (4) both sides, and an end of valve seat (3) is valve seat flange end (31), and valve seat flange end (31) is positioned between valve body (7) and the gate valve short tube (1); The other end of valve seat (3) is valve base sealing end (32), and valve base sealing end (32) penetrates in the valve body (7) and its end face (5) contacts with valve plate (4).
2. the gate valve of replaceable valve seat as claimed in claim 1 is characterized in that: the plane of the mating face (10) that said valve plate (4) both sides contact with the end face (5) of valve base sealing end (32) for being parallel to each other.
3. the gate valve of replaceable valve seat as claimed in claim 1, it is characterized in that: the mating face (10) that said valve plate (4) both sides contact with the end face (5) of valve base sealing end (32) is for be symmetrical inclined-plane each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219726 CN202580076U (en) | 2012-05-16 | 2012-05-16 | Gate valve with replaceable valve seats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220219726 CN202580076U (en) | 2012-05-16 | 2012-05-16 | Gate valve with replaceable valve seats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202580076U true CN202580076U (en) | 2012-12-05 |
Family
ID=47249489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220219726 Expired - Fee Related CN202580076U (en) | 2012-05-16 | 2012-05-16 | Gate valve with replaceable valve seats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202580076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278375A (en) * | 2018-01-31 | 2018-07-13 | 浙江三迪阀业有限公司 | A kind of manufacture craft of the easy-to-mount gate valve of valve seat and valve seat |
| CN111230809A (en) * | 2020-03-20 | 2020-06-05 | 成都乘风阀门有限责任公司 | Valve seat assembling tool and method for flat gate valve |
-
2012
- 2012-05-16 CN CN 201220219726 patent/CN202580076U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278375A (en) * | 2018-01-31 | 2018-07-13 | 浙江三迪阀业有限公司 | A kind of manufacture craft of the easy-to-mount gate valve of valve seat and valve seat |
| CN111230809A (en) * | 2020-03-20 | 2020-06-05 | 成都乘风阀门有限责任公司 | Valve seat assembling tool and method for flat gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20121205 Termination date: 20180516 |