CN104214357A - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN104214357A CN104214357A CN201410430687.2A CN201410430687A CN104214357A CN 104214357 A CN104214357 A CN 104214357A CN 201410430687 A CN201410430687 A CN 201410430687A CN 104214357 A CN104214357 A CN 104214357A
- Authority
- CN
- China
- Prior art keywords
- valve
- gate
- gate valve
- valve rod
- filler
- 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
Links
Classifications
-
- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0218—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with only one sealing face
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Abstract
The invention discloses a gate valve. The gate valve comprises a valve body, a valve seat, a valve cover, a valve rod, a filler, a hand wheel, a valve core and a gate plate device, wherein the valve body is provided with an inlet end and an outlet end, and one side of the inlet end is sealed; the valve seat is located in a flow passage of the valve body; the valve cover is fixedly arranged on the valve body; the valve rod penetrates through the valve cover and a filler compressing cover; the filler is compressed by the filler compressing cover; the hand wheel is located at the upper end of the valve rod; the valve core is located at the lower end of the valve rod and is inverted-truncated-cone-shaped; the gate plate device consists of a gate plate and an adjusting plate, the lower end of the adjusting plate is semi-arc-shaped, and a circular shape is jointly formed by the adjusting plate and the inlet end. The gate valve has the advantages that the operation is easy, the sealing performance is good, and the service life is prolonged.
Description
Technical field
The present invention relates to valve technology field, particularly a kind of gate valve.
Background technique
Gate valve makes open-shut device with flashboard and move along valve seat axes normal direction, to realize the valve of switching motion.The major advantage of gate valve is that runner is unobstructed, and fluid resistance is little, and open and close torque is little; Major defect is that sealing surface easily abrades, and opening and closing time is longer, the bodily form and weight larger.The application of gate valve on pipeline is very extensive, is suitable for manufacturing large bore valves.Gate valve is generally used for blocking fluid, should not be used for adjust flux.Because when gate valve is in half-open position, flashboard can make sealing surface destroy by fluid erosion and impact, also can produce vibration & noise.
The working life of gate valve is in the market not long, comparatively requires great effort, and easily wear and tear during operation, often there will be the phenomenon of leakage.
Summary of the invention
In order to solve the problems of the technologies described above, the object of this invention is to provide a kind ofly to operate easily, good airproof performance, the Novel Brake Valve in raising working life.
Technological scheme of the present invention is: a kind of gate valve, comprising: valve body, and described valve body is provided with entrance point and outlet end, entrance point one side sealing; Valve seat, is positioned at valve flowing channel; Valve gap, described valve gap is fixed on valve body; Valve rod, described valve rod is through described valve gap, Gland; Filler, filler compresses by Gland; Handwheel, is positioned at the upper end of valve rod; Spool, is positioned at the lower end of valve rod, and shape is reverse frustoconic; Flap arrangement, be made up of flashboard and adjustment plate, adjustment plate lower end is semicircular arc, jointly forms circle with entrance point.
Further, described valve outlet bottom portion offers slag exhausting mouth, and the shape of slag exhausting mouth is wedge shape.Owing to have employed wedge shape, thus relative to other shape, can make valve body from bottom to outlet(discharge) flange, form the runner not having steep shape projection, can resistance be reduced, pre-preventing deposit, alleviate the wearing and tearing reducing valve body.
Further, described adjustment plate has an inclined-plane.
Further, described valve stem seal adopts the stuffing box packing of Expanded graphite, ensures that medium does not leak from valve rod.
Further, also comprise support, support is positioned at the outside of valve rod.
Further, sealing surface weld deposit Si Taili cemented carbide, adopts above-mentioned material can make valve energy resistance to erosion, corrosion-resistant and raising life-span.
Further, described spool adopts metallic material to make.
Beneficial effect of the present invention is: owing to taking a side sealing at entrance point, instead of two-side sealing, so can solve valve outlet because sealing and the flow resistance that causes; Adjustment plate lower end is set to semicircular arc, and jointly form circle with entrance point, such arranging can reduce jam, advantageous flow, can reduce the wearing and tearing in ram seal face; The shape of spool is set to reverse frustoconic, compares with other shape, its sealing area is larger, and the sealing effect of generation is better, and the above-mentioned the present invention of ensure that operates easily, good airproof performance, improve working life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
In order to make those skilled in the art understand technological scheme of the present invention better, below in conjunction with Figure of description, the present invention is further detailed explanation.The term used in the present embodiment only for description specific features, is not intended to be limited.
As shown in Figure 1, a kind of gate valve, comprising: valve body 1, and described valve body 1 is provided with entrance point 12 and outlet end 13, entrance point 13 1 side sealing; Offer slag exhausting mouth bottom valve outlet end 13, the shape of slag exhausting mouth is wedge shape; Valve seat 2, is positioned at valve body 1 runner; Valve gap 3, described valve gap 3 is fixed on valve body 1; Valve rod 4, described valve rod 4 is through described valve gap 3, Gland 5; Filler 6, filler 6 compresses by Gland 5, and valve rod 4 seals and adopts Expanded graphite as stuffing box packing; Support 10, support 10 is positioned at the outside of valve rod 4; Handwheel 7, is positioned at the upper end of valve rod 4; Spool 8, is positioned at the lower end of valve rod 4, and shape is reverse frustoconic, adopts metallic material to make; Flap arrangement, be made up of flashboard 91 and adjustment plate 92, adjustment plate 92 lower end is semicircular arc, jointly forms circle with entrance point 12, and adjustment plate 92 has an inclined-plane.
Valve sealing surface build-up welding Si Taili cemented carbide, adopts above-mentioned material can make valve energy resistance to erosion, corrosion-resistant and raising life-span.
Working principle of the present invention is: rotation hand wheel, makes valve rod do downward vertical motion, drives flashboard downward together with adjustment plate when downward, adjustment plate forces in body base time downward, valve plate can decline along the inclined-plane on adjustment plate, thus reaches complete seal, and sealing force is even.
More than show and describe major character of the present invention, principle and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. a gate valve, is characterized in that: comprising: valve body, and described valve body is provided with entrance point and outlet end, entrance point one side sealing; Valve seat, is positioned at valve flowing channel; Valve gap, described valve gap is fixed on valve body; Valve rod, described valve rod is through described valve gap, Gland; Filler, filler compresses by Gland; Handwheel, is positioned at the upper end of valve rod; Spool, is positioned at the lower end of valve rod, and shape is reverse frustoconic; Flap arrangement, be made up of flashboard and adjustment plate, adjustment plate lower end is semicircular arc, jointly forms circle with entrance point.
2. gate valve according to claim 1, is characterized in that: described valve outlet bottom portion offers slag exhausting mouth, and the shape of slag exhausting mouth is wedge shape.
3. gate valve according to claim 1, is characterized in that: described adjustment plate has an inclined-plane.
4. gate valve according to claim 1, is characterized in that: described valve stem seal adopts the stuffing box packing of Expanded graphite.
5. gate valve according to claim 2, is characterized in that: also comprise support, support is positioned at the outside of valve rod.
6. gate valve according to claim 1, is characterized in that: sealing surface weld deposit Si Taili cemented carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430687.2A CN104214357A (en) | 2014-08-29 | 2014-08-29 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430687.2A CN104214357A (en) | 2014-08-29 | 2014-08-29 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214357A true CN104214357A (en) | 2014-12-17 |
Family
ID=52096131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410430687.2A Pending CN104214357A (en) | 2014-08-29 | 2014-08-29 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214357A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286872A (en) * | 2015-05-25 | 2017-01-04 | 江苏中昊船用阀门制造有限公司 | High sealing, wear-resisting type oil cargo tank gate valve |
| CN110530436A (en) * | 2018-05-23 | 2019-12-03 | 中国石油天然气股份有限公司 | Differential pressure type metering device, flow metering method, device and storage medium |
| CN114198520A (en) * | 2021-12-07 | 2022-03-18 | 宣达实业集团有限公司 | Gate valve with novel structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193474Y (en) * | 1994-07-07 | 1995-03-29 | 孙亚洲 | Floating valve base ash valve |
| CN2349409Y (en) * | 1998-10-19 | 1999-11-17 | 江苏省国营淮海石油机械厂 | Internal wedged parallel type double gate boards for gate valve |
| CN2931964Y (en) * | 2006-07-13 | 2007-08-08 | 苏根行 | Gate valve |
| CN201129489Y (en) * | 2007-12-20 | 2008-10-08 | 刘克章 | Wedge-type double gate valve |
| CN101413589A (en) * | 2008-12-05 | 2009-04-22 | 刘克章 | A kind of ceramic wedge-type double-gate valves |
| CN201318460Y (en) * | 2008-12-16 | 2009-09-30 | 成都乘风阀门有限责任公司 | Expanding flat gate valve without deflector hole |
| CN202790623U (en) * | 2012-09-26 | 2013-03-13 | 严云北 | Zero-friction parallel type gate valve |
| CN204140913U (en) * | 2014-08-29 | 2015-02-04 | 苏州福润机械有限公司 | Gate valve |
-
2014
- 2014-08-29 CN CN201410430687.2A patent/CN104214357A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193474Y (en) * | 1994-07-07 | 1995-03-29 | 孙亚洲 | Floating valve base ash valve |
| CN2349409Y (en) * | 1998-10-19 | 1999-11-17 | 江苏省国营淮海石油机械厂 | Internal wedged parallel type double gate boards for gate valve |
| CN2931964Y (en) * | 2006-07-13 | 2007-08-08 | 苏根行 | Gate valve |
| CN201129489Y (en) * | 2007-12-20 | 2008-10-08 | 刘克章 | Wedge-type double gate valve |
| CN101413589A (en) * | 2008-12-05 | 2009-04-22 | 刘克章 | A kind of ceramic wedge-type double-gate valves |
| CN201318460Y (en) * | 2008-12-16 | 2009-09-30 | 成都乘风阀门有限责任公司 | Expanding flat gate valve without deflector hole |
| CN202790623U (en) * | 2012-09-26 | 2013-03-13 | 严云北 | Zero-friction parallel type gate valve |
| CN204140913U (en) * | 2014-08-29 | 2015-02-04 | 苏州福润机械有限公司 | Gate valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286872A (en) * | 2015-05-25 | 2017-01-04 | 江苏中昊船用阀门制造有限公司 | High sealing, wear-resisting type oil cargo tank gate valve |
| CN110530436A (en) * | 2018-05-23 | 2019-12-03 | 中国石油天然气股份有限公司 | Differential pressure type metering device, flow metering method, device and storage medium |
| CN114198520A (en) * | 2021-12-07 | 2022-03-18 | 宣达实业集团有限公司 | Gate valve with novel structure |
| CN114198520B (en) * | 2021-12-07 | 2024-01-16 | 宣达实业集团有限公司 | Gate valve with new structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141217 |