CN102305297A - High-temperature high-pressure stop valve - Google Patents
High-temperature high-pressure stop valve Download PDFInfo
- Publication number
- CN102305297A CN102305297A CN 201110263693 CN201110263693A CN102305297A CN 102305297 A CN102305297 A CN 102305297A CN 201110263693 CN201110263693 CN 201110263693 CN 201110263693 A CN201110263693 A CN 201110263693A CN 102305297 A CN102305297 A CN 102305297A
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- valve
- stop valve
- valve body
- stop
- rod
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Abstract
The invention discloses a high-temperature high-pressure stop valve which comprises a valve rod, a valve body and a valve cover, wherein the valve rod is arranged in the valve body, and the valve cover is arranged between the valve rod and the valve body; the valve cover and the valve body are of an integral structure; because the valve body and the valve cover are designed as the integral structure, the leakage point of the stop valve is reduced, the valve cover and the valve body are prevented from loosening, the security of the stop valve is improved, the phenomenon that the stop valve is damaged due to steam scour can be avoided, and the service life of the high-temperature high-pressure stop valve is prolonged; the stop valve can work at the high temperature and high pressure for a long time without maintenance, and the potential safety hazard in the boiler operational process is eliminated; and in addition,the stop valve provided by the invention has the advantage of reasonable design, and can be used for reducing the shutdown accident caused by the valve leakage in the operating process, achieving the purposes of safety, stability, high yield and high efficiency and greatly lowering the maintenance cost.
Description
Technical field
The present invention relates to a kind of stop valve, particularly a kind of stop valve that is used for the High Temperature High Pressure working environment belongs to valve class technical field.
Background technique
In power plant's production run process, high temperature and high pressure cut-off valve is in significant points.Heat energy by boiler is produced is exported through this valve, valve is used among high-temperature high-pressure state for a long time, and steam flush is terrible, and therefore, operating conditions is very harsh; In addition, because each maintenance must be in outage state, brought very big trouble and economic loss for the normal operation of power plant, thereby bring very inconvenience to maintenance.The present stop valve that uses; Comprise valve body, valve rod; Interior device has spool; Be provided with valve gap between valve rod and the valve body, the stop valve of this structure, valve body and valve gap generally adopt separate type; The red copper gasket seal is adopted in the junction in the middle of valve body and the valve gap; In service in long-time High Temperature High Pressure, the red copper pad will produce creep, produces loosening phenomenon between valve gap and the valve body thereby make.Steam will be gushed under the high pressure situation, and the safe operation of boiler of power plant has been brought very big hidden danger.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to prior art, and the stop valve of a kind of long service life, safe High Temperature High Pressure is provided.
In order to solve the problems of the technologies described above, the stop valve of a kind of High Temperature High Pressure of the present invention comprises valve rod, valve body, valve gap; Said valve rod is arranged in the said valve body; Said valve gap is arranged between said valve rod and the said valve body, and wherein, said valve gap and said valve body are monolithic construction.
The stop valve of above-mentioned a kind of High Temperature High Pressure, wherein, said valve gap periphery is provided with lug.
The stop valve of above-mentioned a kind of High Temperature High Pressure, wherein, said valve rod is provided with trapezoidal thread.
1, owing to valve body, valve gap design monolithic construction; Promptly reduced the leakage point of stop valve, it is loosening to prevent that again valve gap and valve body from producing, the Security that has improved stop valve; And avoided stop valve owing to steam flush is damaged, prolonged working life of the present invention; Can make stop valve for a long time under high-temperature high-pressure state, need not keep in repair, and eliminate the potential safety hazard in the boiler running process; In addition, the present invention is reasonable in design, has reduced the stopping accident that in running, causes because of valve leak, has both reached purpose safe, stable, high-yield and high-efficiency, greatly reduces maintenance cost again.
2, because the valve gap periphery is provided with lug, improved the heat dispersion of valve greatly, made the temperature of valve gap inner chamber obtain good improvement, thereby, working life of the present invention further prolonged.
3, since valve rod be provided with trapezoidal thread outward, make the unlatching of stop valve and close convenient and swift, thereby, made things convenient for use.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
As shown in the figure, in order to solve the problems of the technologies described above, the stop valve of a kind of High Temperature High Pressure of the present invention comprises valve rod 4, valve body 8, valve gap 20, and spool 12 is equipped with in the lower end of valve rod 4, and filler gland 5, handwheel 1, pad 2 and valve pressure cap 3 are equipped with in the upper end of valve rod 4.The filler gland is equipped with the first filler pad 11 and the second filler pad 7 for 5 times, and stuffing box packing 10 is equipped with in the centre, and stuffing box packing 10 is respectively equipped with end face ring 9 up and down.After filler gland 5 firmly compresses the second filler pad 7 downwards, again through valve pressure cap 6 locking filler glands 5.Valve rod 4 is arranged in the said valve body 8, and said valve gap 20 is arranged between said valve rod 4 and the said valve body 8, and valve gap 20 is a monolithic construction with said valve body 8.Valve body 8, valve gap 20 can adopt disjunctor die forging form or other integrated modes to be made into overall structure; Because valve body 8, valve gap 20 design monolithic constructions; Promptly reduced the leakage point of stop valve; It is loosening to prevent that again valve gap and valve body from producing; Improved the Security of stop valve; And avoided stop valve owing to steam flush is damaged, prolonged working life of the present invention, and improved sealability of the present invention.
Further perfect as the present technique scheme,
Valve of the present invention is compared background technique has following advantage, and the disjunctor valve has reduced leakage point in running, has eliminated operating potential safety hazard.This valve long service life, reasonable in design, aesthetic in appearance, long-term use does not need shutdown maintenance, has improved operational efficiency greatly, has reduced operating cost.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for illustrating the object of the invention; And be not with opposing qualification of the present invention; As long as in essential scope of the present invention, all will drop in the scope of claim of the present invention the above embodiment's variation, modification.
Claims (3)
1. the stop valve of a High Temperature High Pressure comprises valve rod, valve body, valve gap, and said valve rod is arranged in the said valve body, and said valve gap is arranged between said valve rod and the said valve body, it is characterized in that, said valve gap and said valve body are monolithic construction.
2. a kind of stop valve of High Temperature High Pressure according to claim 1 is characterized in that said valve gap periphery is provided with lug.
3. a kind of stop valve of High Temperature High Pressure as claimed in claim 1 or 2 is characterized in that said valve rod is for being provided with trapezoidal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110263693 CN102305297A (en) | 2011-09-07 | 2011-09-07 | High-temperature high-pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110263693 CN102305297A (en) | 2011-09-07 | 2011-09-07 | High-temperature high-pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102305297A true CN102305297A (en) | 2012-01-04 |
Family
ID=45379190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110263693 Pending CN102305297A (en) | 2011-09-07 | 2011-09-07 | High-temperature high-pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102305297A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105874251A (en) * | 2014-02-20 | 2016-08-17 | 株式会社富士金 | Valve body and high temperature valve |
| CN112503048A (en) * | 2020-12-15 | 2021-03-16 | 成都东华卓越科技有限公司 | Stop valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073754A (en) * | 1991-12-24 | 1993-06-30 | 陈宝镇 | Plunger Globe Valve |
| CN2435576Y (en) * | 2000-07-07 | 2001-06-20 | 汪锡斌 | Plunger type stop valve |
| CN201326759Y (en) * | 2008-12-16 | 2009-10-14 | 福建菲达阀门有限公司 | Valve cover and bracket mechanism of gate valve |
| CN201866374U (en) * | 2010-11-29 | 2011-06-15 | 汪东方 | Valve cap for valve body |
-
2011
- 2011-09-07 CN CN 201110263693 patent/CN102305297A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073754A (en) * | 1991-12-24 | 1993-06-30 | 陈宝镇 | Plunger Globe Valve |
| CN2435576Y (en) * | 2000-07-07 | 2001-06-20 | 汪锡斌 | Plunger type stop valve |
| CN201326759Y (en) * | 2008-12-16 | 2009-10-14 | 福建菲达阀门有限公司 | Valve cover and bracket mechanism of gate valve |
| CN201866374U (en) * | 2010-11-29 | 2011-06-15 | 汪东方 | Valve cap for valve body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105874251A (en) * | 2014-02-20 | 2016-08-17 | 株式会社富士金 | Valve body and high temperature valve |
| CN105874251B (en) * | 2014-02-20 | 2019-05-17 | 株式会社富士金 | Valve body and high temperature valve |
| CN112503048A (en) * | 2020-12-15 | 2021-03-16 | 成都东华卓越科技有限公司 | Stop valve |
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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: 20120104 |