CN103398187A - Periodical and fast hard-seal drainage valve of high-pressure boiler - Google Patents
Periodical and fast hard-seal drainage valve of high-pressure boiler Download PDFInfo
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- CN103398187A CN103398187A CN2013103621324A CN201310362132A CN103398187A CN 103398187 A CN103398187 A CN 103398187A CN 2013103621324 A CN2013103621324 A CN 2013103621324A CN 201310362132 A CN201310362132 A CN 201310362132A CN 103398187 A CN103398187 A CN 103398187A
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Abstract
The invention relates to the field of gate valves, in particular to a periodical and fast hard-seal drainage valve of a high-pressure boiler. The drainage valve comprises a valve body, a valve seat, a valve clack, a spring, a valve rod, a sealing ring, a valve cap and an on-off mechanism, wherein the valve clack is divided into a left valve clack and a right valve clack; a tooth rack is arranged on one side in the middle of the valve rod; the valve seat is fixedly connected onto the valve body; the valve body adopts stainless steel CF3M; and a sealing surface between the valve clack and the valve seat adopts hard alloy. The periodical and fast hard-seal drainage valve of the high-pressure boiler has the advantages of simple structure and convenience in use, the valve seat adopts a fixed mechanism, so that the abrasion is reduced, the sealing surface and the valve body adopt special materials, accordingly, the drainage valve is more abrasion-resistant and corrosion-resistant, and the service life of the valve is prolonged; and the working pressure range of the valve is enlarged.
Description
Technical field
The present invention relates to the gate valve field, be specifically related to a kind of regularly fast hard sealed waste discharge valve of high-pressure autoclave.
Background technique
The function of traditional Quick Draining Valves is developed by gate valve, utilizes the purpose of gear 90-degree rotation band ovable valve stem lifting implementation opening and closing.Quick Draining Valves moment is little, and is easy and simple to handle, easily realizes fast opening and closing.In order to reduce cost of electricity-generating, improve generating efficiency, power generating equipment is just towards maximization, high parameter, high performance future development.
Blowdown valve has two unsteady valve seats, all can seal when each valve seat is designed to the both direction media flow.Parallel flap not only can be realized two way sealed, and can realize that inlet/outlet seals simultaneously.During greater than pipeline pressure, the pressure difference that medium acts on the valve seat both sides will push away blowdown valve to floating valve seat when valve expanded by heating and the pressure that causes lumen.Blowdown valve work is more frequent, pressure is larger, and the floating valve seat wearing and tearing are also larger, easily cause the leakage of valve.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of regularly fast hard sealed waste discharge valve of high-pressure autoclave, simplicity of design, easy to operate, valve seat adopts fixed structure, reduces wear, and increases the service life.
, in order to reach the foregoing invention purpose, the present invention proposes following technological scheme:
the regularly fast hard sealed waste discharge valve of high-pressure autoclave, it comprises valve body, valve seat, flap, spring, valve rod, seal ring, valve gap and switching mechanism, flap is divided into left flap and right flap, left flap and right flap link together by the valve rod lower end, spring is contained in the middle of left flap and right flap, valve seat is contained between flap and valve body, valve gap is enclosed within the valve rod upper end, valve gap and valve body are fixed together by nuts and bolt, and between seal ring is housed, the valve gap top is provided with nut, switching mechanism is contained in valve gap upper end one side, in the middle of described valve rod, a side has tooth bar, described valve seat is fixedly connected on valve body, it is stainless steel CF3M that described valve body adopts material, sealing surface between described flap and valve seat adopts the material cemented carbide.
Described switching mechanism comprises sealed case, filler, gear, gland and handle, gear is contained in valve rod tooth bar position, wheel and rack is connected, gear one end connection teeth wheel shaft, one end is fixed on valve gap, the described gear shaft the other end is equipped with bearing, bearing is contained between gear shaft and gland, gland covers in the sealed case outside, sealed case is between valve gap and gland, and filler is equipped with in the sealed case the inside, and packing seal is in the gear shaft outside, between sealed case and gear shaft, handle is contained in the gear shaft outermost end.
The regularly fast hard sealed waste discharge valve working pressure of described high-pressure autoclave is below 1500Lb.
Advantage of the present invention is simplicity of design, and is easy to use, and valve seat adopts fixed mechanism, reduces wear, and sealing surface and valve body adopt special material, and be more wear-resisting, corrosion-resistant, extends valve working life; Valve working pressure scope increases.
Description of drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is partial sectional view of the present invention.
Embodiment
, for the present invention is further described, below in conjunction with Figure of description, introduce:
with reference to Fig. 1, the regularly fast hard sealed waste discharge valve of high-pressure autoclave, it comprises valve body 1, valve seat 2, flap, spring 4, valve rod 6, seal ring 7, valve gap 8 and switching mechanism, flap is divided into left flap 3 and right flap 5, left flap 3 and right flap 5 link together by valve rod 6 lower ends, spring 4 is contained in the middle of left flap 3 and right flap 5, valve seat 2 is contained between flap and valve body 1, valve gap 8 is enclosed within valve rod 6 upper ends, valve gap 8 is fixed together by nut 9 and bolt 10 with valve body 1, and between seal ring 7 is housed, valve gap 8 tops are provided with nut 11, switching mechanism is contained in valve gap 8 upper end one sides, in the middle of described valve rod 6, a side has tooth bar, described valve seat 2 is fixedly connected on valve body 1, it is stainless steel CF3M that described valve body 1 adopts material, sealing surface between described flap and valve seat 2 adopts the material cemented carbide.
with reference to Fig. 2, described switching mechanism comprises sealed case 12, filler 13, gear 14, gland 15 and handle 16, gear 14 is contained in valve rod 6 tooth bar positions, gear 14 is connected with tooth bar, gear 14 1 end connection teeth wheel shafts 17, one end is fixed on valve gap 8, described gear shaft 17 the other ends are equipped with bearing 18, bearing 18 is contained between gear shaft 17 and gland 15, gland 15 covers in sealed case 12 outsides, sealed case 12 is between valve gap 8 and gland 15, filler 13 is equipped with in sealed case 12 the insides, filler 13 is sealed in gear shaft 17 outsides, between sealed case 12 and gear shaft 17, handle 16 is contained in gear shaft 17 outermost end.
The regularly fast hard sealed waste discharge valve working pressure of described high-pressure autoclave is below 1500Lb.
Claims (3)
1. the regularly fast hard sealed waste discharge valve of high-pressure autoclave, it comprises valve body, valve seat, flap, spring, valve rod, seal ring, valve gap and switching mechanism, flap is divided into left flap and right flap, left flap and right flap link together by the valve rod lower end, spring is contained in the middle of left flap and right flap, valve seat is contained between flap and valve body, valve gap is enclosed within the valve rod upper end, valve gap and valve body are fixed together by nuts and bolt, and between seal ring is housed, the valve gap top is provided with nut, switching mechanism is contained in valve gap upper end one side, in the middle of it is characterized in that described valve rod, a side has tooth bar, described valve seat is fixedly connected on valve body, it is stainless steel CF3M that described valve body adopts material, sealing surface between described flap and valve seat adopts the material cemented carbide.
2. the regularly fast hard sealed waste discharge valve of high-pressure autoclave according to claim 1, it is characterized in that described switching mechanism comprises sealed case, filler, gear, gland and handle, gear is contained in valve rod tooth bar position, wheel and rack is connected, gear one end connection teeth wheel shaft, one end is fixed on valve gap, the described gear shaft the other end is equipped with bearing, bearing is contained between gear shaft and gland, gland covers in the sealed case outside, sealed case is between valve gap and gland, filler is equipped with in the sealed case the inside, packing seal is in the gear shaft outside, between sealed case and gear shaft, handle is contained in the gear shaft outermost end.
3. the regularly fast hard sealed waste discharge valve of high-pressure autoclave according to claim 1, is characterized in that the regularly fast hard sealed waste discharge valve working pressure of described high-pressure autoclave is below 1500Lb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103621324A CN103398187A (en) | 2013-08-20 | 2013-08-20 | Periodical and fast hard-seal drainage valve of high-pressure boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103621324A CN103398187A (en) | 2013-08-20 | 2013-08-20 | Periodical and fast hard-seal drainage valve of high-pressure boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103398187A true CN103398187A (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103621324A Pending CN103398187A (en) | 2013-08-20 | 2013-08-20 | Periodical and fast hard-seal drainage valve of high-pressure boiler |
Country Status (1)
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| CN (1) | CN103398187A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003725A (en) * | 2015-07-13 | 2015-10-28 | 方正阀门集团(温州)机械制造有限公司 | Emergent opening/closing gate valve |
| CN105805331A (en) * | 2016-04-15 | 2016-07-27 | 浙江工业大学 | Handle-free straight-chamber filtering valve |
| CN107387856A (en) * | 2017-07-25 | 2017-11-24 | 沈婉珍 | It is a kind of can stable regulation water valving |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA944752A (en) * | 1972-07-10 | 1974-04-02 | Irving J. Heinen | Valve actuating means |
| CN87201880U (en) * | 1987-02-08 | 1988-01-13 | 荥阳锅炉阀门厂 | Boiler blowoff valve |
| CN2416302Y (en) * | 2000-04-13 | 2001-01-24 | 盛俊 | Energy-saving high-speed blowoff valve |
| CN2591350Y (en) * | 2002-12-06 | 2003-12-10 | 王金海 | Fast opening & closing sluice valve |
| CN2625672Y (en) * | 2003-06-27 | 2004-07-14 | 林峰 | Sluice valve with adjustable combined flashboard |
| US6957659B1 (en) * | 2002-05-29 | 2005-10-25 | Everlasting Valve Company, Inc. | Sliding disk valve for pneumatic conveyance of abrasive material |
-
2013
- 2013-08-20 CN CN2013103621324A patent/CN103398187A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA944752A (en) * | 1972-07-10 | 1974-04-02 | Irving J. Heinen | Valve actuating means |
| CN87201880U (en) * | 1987-02-08 | 1988-01-13 | 荥阳锅炉阀门厂 | Boiler blowoff valve |
| CN2416302Y (en) * | 2000-04-13 | 2001-01-24 | 盛俊 | Energy-saving high-speed blowoff valve |
| US6957659B1 (en) * | 2002-05-29 | 2005-10-25 | Everlasting Valve Company, Inc. | Sliding disk valve for pneumatic conveyance of abrasive material |
| CN2591350Y (en) * | 2002-12-06 | 2003-12-10 | 王金海 | Fast opening & closing sluice valve |
| CN2625672Y (en) * | 2003-06-27 | 2004-07-14 | 林峰 | Sluice valve with adjustable combined flashboard |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003725A (en) * | 2015-07-13 | 2015-10-28 | 方正阀门集团(温州)机械制造有限公司 | Emergent opening/closing gate valve |
| CN105805331A (en) * | 2016-04-15 | 2016-07-27 | 浙江工业大学 | Handle-free straight-chamber filtering valve |
| CN107387856A (en) * | 2017-07-25 | 2017-11-24 | 沈婉珍 | It is a kind of can stable regulation water valving |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131120 |