CN102192338A - Soft seal gate valve - Google Patents
Soft seal gate valve Download PDFInfo
- Publication number
- CN102192338A CN102192338A CN 201010126817 CN201010126817A CN102192338A CN 102192338 A CN102192338 A CN 102192338A CN 201010126817 CN201010126817 CN 201010126817 CN 201010126817 A CN201010126817 A CN 201010126817A CN 102192338 A CN102192338 A CN 102192338A
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- CN
- China
- Prior art keywords
- flashboard
- valve body
- valve
- gate
- gate disc
- 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.)
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Abstract
The invention relates to a soft seal gate valve, which comprises a valve body, a gate disc vertically moving along gate disc slideways at the two sides in the valve body and a valve rod which operates the gate disc to vertically move to start and stop; the two sides of the gate disc are provided with gate disc sliding grooves sliding on the gate disc slideways; the contact parts between the gate disc sliding grooves and the gate disc slideways are provided with pressure protection grooves used for relieving liquid pressure; the gate disc is formed by coating a layer of rubber material on the outer surface of a casting substrate; the inner wall and the outer surface of the valve body are sprayed with a non-toxic odourless resin (RAL7040) powder coating layer; and three plane seals are adopted between the lower part of the gate disc and a runner of the valve body for contact. In the soft seal gate valve, a layer of rubber is used for coating the gate disc and the inner wall of the valve body is sprayed with the non-toxic resin powder coating layer to thoroughly prevent the contact of liquid and metal and secondary pollution. The valve has the characteristics of high temperature resistance, high pressure resistance, corrosion resistance and high tensile strength, is safer in application and flexibility in starting. Moreover, water flow can be completely cut off by the three seals to ensure the service life of the valve.
Description
Technical field
The present invention relates to valve, particularly relate to a kind of soft sealing gate valve.
Background technique
Gate valve is widely used on the pipeline of plumbing, as regulating and one of valve that throttling is used, and the purpose that the lifting by flashboard reaches unlatching or closes.The sealing position of the valve body of existing gate valve, flashboard and flashboard all needs machining to form.Directly contact, in use very easily get rusty, both made and taked contacting of finish coatings blocking-up liquid and metal with fed sheet of a media, not dispatching from the factory of having lacquer painting just occurs and comes off, and fed sheet of a media is polluted in corrosion, especially be used on the tap water pipe line, cause secondary pollution to tap water.Flashboard, the lock groove fitted seal of adopting because flashboard bottom and valve flowing channel position are sealed and matched more, not only can cause the increase of liquid flowing resistance and pressure, and the accumulation that easily produces foreign material in the lock groove, influence closing gate, poorly sealed, to run improperly, open moment big.Valve adopts the common grey iron manufacturing, and tensile strength is low, be installed on the pipeline after, be unable to undergo pipeline and stretch, be easy to occur explosion, cause the generation of water supply fault.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of not corrosion no secondary pollution, and opening/shutting valve is flexible, good seal, and keying moment is little, rational in infrastructure, improves safe again soft sealing gate valve in working life.
The technological scheme that adopts is:
A kind of soft sealing gate valve, the flashboard that comprise valve body, moves up and down along both sides flashboard slideway in the valve body and handle flashboard and move up and down and reach the valve rod of keying.The flashboard chute that slides on the flashboard slideway in described flashboard both sides, its flashboard chute and flashboard slideway contact position are provided with the pressure protect groove that alleviates fluid pressure.Described flashboard is to coat one deck rubber material layer by the foundry goods outer surface of matrix to constitute, and is coated with nonpoisonous and tasteless RAL7040 toner (commercial) coating layer at valve interior wall and valve outer surface.
Adopt three road rubber seals between above-mentioned flashboard bottom and valve flowing channel, three road rubber seals and flashboard outer surface rubber layer are an integral body, and three road rubber seals form three road plane sealings with valve flowing channel and contact.
Above-mentioned valve body, flashboard and valve foundry goods all adopt the QT450-10 material.
The above-mentioned rubber-coated material layer of flashboard outer surface, be to fall to restraining tackiness agent (import) brush at the flashboard casting surface with triumphant mother, put into metal mold, be forced into 80-120MPa die cast in metal mold with heating to 130 ℃ EPDM rubber (commercial product), working pressure machine.
Above-mentioned valve interior wall and valve outer surface spraying RAL7040 toner coating layer, be that the valve body that will be coated with RAL7040 is put into and had 270-300 ℃ of high temperature baking box, valve body is entered heat behind the baking box reach 200-230 ℃ at least 5 hours, sprayed surface is finished to solidify and is formed.
The invention has the advantages that:
1, flashboard outer surface and bottom three seals EPDM super heated rubber die cast; high temperature resistant, high pressure resistant, corrosion-resistant characteristic have been played; its three seals cuts off flowing water pressure fully, and both having made has impurity to cut off flowing water pressure equally in the water, and the working life of valve has been protected in soft seal.
2, valve interior wall is coated with nonpoisonous and tasteless toner coating and adopts the high temperature baking vanish, and cohesive force is strong, has avoided the lacquer painting disengaging, thoroughly blocks the no secondary pollution that contacts of liquid and metal.
3, flashboard is provided with the pressure protect groove that alleviates water pressure, and pressure in the mediation water reduces throttle down firmly, and valve is started flexibly, also prevents from that the flashboard foundry goods from separating with rubber simultaneously valve integral body is scrapped.
4, the foundry goods of valve body, flashboard and valve all adopts the QT450-10 material, and the tensile strength height is avoided being installed in and stretched by pipeline and explosion.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is flashboard of the present invention and valve body installation position enlarged view.
Fig. 3 is flashboard of the present invention and valve body flashboard slideway connection diagram.
Fig. 4 is the A place enlarged view of Fig. 3.
Fig. 5 is a flashboard of the present invention bottom three seals schematic representation.
Fig. 6 is the C-C sectional drawing of Fig. 5.
Embodiment
A kind of soft sealing gate valve, the flashboard 2 that comprise valve body 1, moves up and down along both sides flashboard slideway 5 in the valve body and handle the valve rod 3 that flashboard moves up and down and reaches keying.The flashboard chute 6 that slides on flashboard slideway 5 in described flashboard 2 both sides, its flashboard chute 6 is provided with the pressure protect groove 7 that alleviates fluid pressure with flashboard slideway 5 contact position.The foundry goods of described valve body 1, flashboard 2 and valve all adopts the high spheroidal graphite cast iron QT450-10 of tensile strength material, flashboard 2 is to fall to restraining the tackiness agent brush at the flashboard casting surface by triumphant mother, put into metal mold, be forced into 100MPa die cast in metal mold with EPDM rubber, the working pressure machine of heating to 130 ℃, make flashboard 2 cast outer surface coat one deck rubber material layer 4, simultaneously flashboard 2 bottom rubber material layers form that employing three road plane sealings contact between three road rubber seals, 8,9,10, three road rubber seals and valve body 1 runner.Described valve body 1 inwall and valve body 1 outer surface are coated with RAL7040 toner coating layer and put into has 270-300 ℃ of high temperature baking box, valve body is entered heat behind the baking box reach 210 ℃ at least 5 hours, sprayed surface is finished to solidify and is formed bottle green and form firm nonpoisonous and tasteless toner coating layer.
Claims (5)
1. soft sealing gate valve; comprise valve body (1); the flashboard (2) that moves up and down along both sides flashboard slideway (5) in the valve body and handle the valve rod (3) that flashboard moves up and down and reaches keying; it is characterized in that the flashboard chute (6) that upward slides in flashboard slideway (5) in described flashboard (2) both sides; its flashboard chute (6) is provided with the pressure protect groove (7) that alleviates fluid pressure with flashboard slideway (5) contact position; described flashboard (2) is to coat one deck rubber material layer (4) by the foundry goods outer surface of matrix to constitute, and is coated with nonpoisonous and tasteless RAL7040 toner coating layer at valve body (1) inwall and valve body (1) outer surface.
2. a kind of soft sealing gate valve according to claim 1, it is characterized in that adopting three road rubber seals (8), (9), (10) three road rubber seals (8), (9), (10) between described flashboard (2) bottom and valve body (1) runner is an integral body with flashboard (2) outer surface rubber material layer (4), three road rubber seals form three road plane sealings with valve flowing channel and contact.
3. a kind of soft sealing gate valve according to claim 1 is characterized in that described valve body (1), flashboard (2) and valve foundry goods all adopt the QT450-10 material.
4. a kind of soft sealing gate valve according to claim 1, it is characterized in that the rubber-coated material layer of described flashboard (2) outer surface (4), be to fall to restraining the tackiness agent brush at the flashboard casting surface with triumphant mother, put into metal mold, be forced into 80-120MPa die cast in metal mold with heating to 130 ℃ EPDM rubber, working pressure machine.
5. a kind of soft sealing gate valve according to claim 1, the RAL7040 toner coating layer that it is characterized in that described valve body (1) inwall and valve body (1) outer surface, be that the valve body (1) that will be coated with nonpoisonous and tasteless RAL7040 is put into and had 270-300 ℃ of high temperature baking box, valve body is entered heat behind the baking box reach 200-230 ℃ at least 5 hours, sprayed surface is finished to solidify and is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010126817 CN102192338A (en) | 2010-03-18 | 2010-03-18 | Soft seal gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010126817 CN102192338A (en) | 2010-03-18 | 2010-03-18 | Soft seal gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102192338A true CN102192338A (en) | 2011-09-21 |
Family
ID=44600978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010126817 Pending CN102192338A (en) | 2010-03-18 | 2010-03-18 | Soft seal gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102192338A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671989A (en) * | 2013-12-31 | 2014-03-26 | 山东莱德机械有限公司 | Elastic self-sealing gate valve |
| CN108167525A (en) * | 2017-12-11 | 2018-06-15 | 安徽银龙泵阀股份有限公司 | A kind of heatproof corrosion resistant spool and its manufacture craft |
| CN108204477A (en) * | 2017-12-11 | 2018-06-26 | 安徽银龙泵阀股份有限公司 | A kind of anti-clogging spool and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990015946A1 (en) * | 1989-06-19 | 1990-12-27 | Avk Maskinfabrik A/S | Gate valve |
| CN1084943A (en) * | 1992-09-29 | 1994-04-06 | 南京理工大学 | Liquid, pneumatic self-balance gate valve |
| JP2000240820A (en) * | 1999-02-22 | 2000-09-08 | Kurimoto Ltd | Gate valve seat structure |
| CN2821311Y (en) * | 2005-09-20 | 2006-09-27 | 天津塘沽瓦特斯阀门有限公司 | Soft seal gate valve |
| CN2895916Y (en) * | 2006-04-19 | 2007-05-02 | 郑州市阀门集团有限公司 | Fully-plastic-blowing soft sealing sluice valve |
-
2010
- 2010-03-18 CN CN 201010126817 patent/CN102192338A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990015946A1 (en) * | 1989-06-19 | 1990-12-27 | Avk Maskinfabrik A/S | Gate valve |
| CN1084943A (en) * | 1992-09-29 | 1994-04-06 | 南京理工大学 | Liquid, pneumatic self-balance gate valve |
| JP2000240820A (en) * | 1999-02-22 | 2000-09-08 | Kurimoto Ltd | Gate valve seat structure |
| CN2821311Y (en) * | 2005-09-20 | 2006-09-27 | 天津塘沽瓦特斯阀门有限公司 | Soft seal gate valve |
| CN2895916Y (en) * | 2006-04-19 | 2007-05-02 | 郑州市阀门集团有限公司 | Fully-plastic-blowing soft sealing sluice valve |
Non-Patent Citations (1)
| Title |
|---|
| 《阀门》 19990630 余千等 英制闸阀闸板的橡胶包覆工艺 , 第02期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671989A (en) * | 2013-12-31 | 2014-03-26 | 山东莱德机械有限公司 | Elastic self-sealing gate valve |
| CN103671989B (en) * | 2013-12-31 | 2015-11-25 | 山东莱德机械有限公司 | Elasticity self-sealing gate valve |
| CN108167525A (en) * | 2017-12-11 | 2018-06-15 | 安徽银龙泵阀股份有限公司 | A kind of heatproof corrosion resistant spool and its manufacture craft |
| CN108204477A (en) * | 2017-12-11 | 2018-06-26 | 安徽银龙泵阀股份有限公司 | A kind of anti-clogging spool and preparation method thereof |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110921 |