CN103791130A - Pressure retaining valve with pressure relief area variable along with furnace pressure changes - Google Patents
Pressure retaining valve with pressure relief area variable along with furnace pressure changes Download PDFInfo
- Publication number
- CN103791130A CN103791130A CN201210420774.0A CN201210420774A CN103791130A CN 103791130 A CN103791130 A CN 103791130A CN 201210420774 A CN201210420774 A CN 201210420774A CN 103791130 A CN103791130 A CN 103791130A
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- China
- Prior art keywords
- pressure
- pressure relief
- valve body
- mounting flange
- fixed
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- 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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Classifications
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention provides a pressure retaining valve with a pressure relief area variable along with furnace pressure changes. The pressure retaining valve comprises a mounting flange, an air outlet, a valve body, a guide rod, a pressure relief plate and a pressure relief port. The valve body is a cylinder, the bottom of the valve body is provided with a round hole, the air outlet is fixed on the top surface of the valve body, the pressure relief port is fixed on the bottom surface of the valve body, the mounting flange comprises an outlet mounting flange and an inlet mounting flange, the outlet mounting flange is fixed at the top of the air outlet, and the inlet mounting flange is fixed at the bottom of the pressure relief port. The guide rod is fixed on the bottom surface of the valve body and sleeved with the pressure relief plate, and the pressure relief plate is nested in the pressure relief port. The pressure retaining valve with the pressure relief area variable is reasonable in structure and simple to manufacture, the pressure relief port is matched with the pressure relief plate, the height of the pressure relief plate is influenced along with pressure changes, and the pressure relief area also varies continuously; the guide rod is adopted simultaneously to guide the movement direction of the pressure relief plate, dislocation of the pressure relief plate in the movement process is avoided, and furnace pressure stability is improved.
Description
Technical field
The present invention relates to controlled atmosphere furnace field, specifically the atmosphere control structure technology of controlled atmosphere furnace.
Background technique
Existing controlled atmosphere furnace adopts more arranges pressure retaining valve to stablize furnace pressure in stove on furnace shell, and in the time that furnace pressure raises, pressure retaining valve is opened, earth pressure release.Because each process implementing stage in production process passes into process gas flow and differs greatly, cause furnace pressure to change greatly, and traditional pressure retaining valve pressure release area is fixed, in the time that furnace pressure is lower, pressure retaining valve one opens that easily to cause furnace pressure to reduce too fast; When furnace pressure is higher, limited by pressure retaining valve pressure release area, furnace pressure reduces too slow.Affected by above-mentioned factor, the fixing pressure retaining valve of traditional pressure release area often causes furnace pressure unstable, is unfavorable for controlling heat treatment process and quality of product.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defect, provides a kind of pressure release area variable pressure retaining valve, regulates at any time in time according to furnace pressure, improves furnace pressure stability.
In order to solve the problems of the technologies described above, the invention provides following technological scheme:
Change the variable pressure retaining valve of pressure release area with furnace pressure, comprise mounting flange, air outlet, valve body, guide rod, pressure relief plate and pressure relief opening, described valve body is cylindrical body, and valve body bottom surface is provided with circular open; Described valve body end face is fixed with air outlet, and valve body bottom surface is fixed with pressure relief opening; Described mounting flange comprises outlet mounting flange and import mounting flange, and outlet mounting flange is fixed on top, air outlet, and import mounting flange is fixed on pressure relief opening bottom; Described guide rod is fixed on valve body bottom surface; Described pressure relief plate is sleeved on guide rod, and is nested in pressure relief opening.
Further, valve body end face is fixed on by screw in described air outlet.
Further, described pressure relief opening covers the round exit of valve body bottom surface, and by being fixedly welded on valve body bottom surface.
Further, described air outlet, pressure relief opening and pressure relief plate are round table-like.
The present invention a kind ofly changes pressure release area variable pressure retaining valve with furnace pressure, and rational in infrastructure, easy to make, pressure relief opening and pressure relief plate agree with mutually, along with the increase and decrease of pressure, and then affects the height of pressure relief plate, and pressure release area is constantly variation also; Adopt guide rod guiding pressure relief plate movement direction simultaneously, prevent from producing dislocation in pressure relief plate moving process, improved furnace pressure stability.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is that the present invention changes the variable pressure retaining valve structural drawing of pressure release area with furnace pressure.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of with the variable pressure retaining valve of furnace pressure variation pressure release area, comprise mounting flange 1, air outlet 2, valve body 3, guide rod 4, pressure relief plate 5 and pressure relief opening 6, import mounting flange 7, described valve body 3 is cylindrical body, there is circular open in valve body 3 bottom surfaces; Described valve body 3 end faces are fixed with air outlet 2, and valve body 3 bottom surfaces are fixed with pressure relief opening 6; Described mounting flange comprises outlet mounting flange 1 and import mounting flange 7, and outlet mounting flange 1 is fixed on 2 tops, air outlet, and import mounting flange 7 is fixed on pressure relief opening 6 bottoms; Described guide rod 4 is fixed on valve body 3 bottom surfaces; Described pressure relief plate 5 is sleeved on guide rod 4, and is nested in pressure relief opening 6; Valve body 3 is fixed on by screw in described air outlet 2; Described pressure relief opening 6 covers the circular open of valve body 3 bottom surfaces, and by being fixedly welded on valve body 3 bottom surfaces; Described air outlet 2, pressure relief opening 6 are round table-like with pressure relief plate 5.
In the time that body of heater internal pressure is excessive, furnace gas enters pressure retaining valve by import mounting flange 7; Gas is poor by pressure relief plate 5 jack-up by inner and outer air pressure in the time entering pressure retaining valve, and guide rod 4 is controlled pressure relief plate 5 movement directions, and gas enters after valve body 3, more finally discharges by air outlet 2 and outlet mounting flange 1.The rising size of pressure relief plate 5 can change along with the pressure change in stove, and the pressure release area between pressure relief plate 5 and pressure relief opening 6 also constantly changes simultaneously, and then realizes the adjusting at any time of furnace pressure.
The present invention a kind ofly changes pressure release area variable pressure retaining valve with furnace pressure, rational in infrastructure, makes simply, and pressure relief opening and pressure relief plate agree with mutually, along with the increase and decrease of pressure, and then affects the height of pressure relief plate, and pressure release area is constantly variation also; Adopt guide rod guiding pressure relief plate movement direction simultaneously, prevent from producing dislocation in pressure relief plate moving process, improved furnace pressure stability.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technological scheme that still can record aforementioned each embodiment is modified, or part technical characteristics is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. change the variable pressure retaining valve of pressure release area with furnace pressure, comprise mounting flange, air outlet, valve body, guide rod, pressure relief plate and pressure relief opening, it is characterized in that: described valve body is cylindrical body, and valve body bottom surface exists circular cut;
Described valve body end face is fixed with air outlet, and valve body bottom surface is fixed with pressure relief opening;
Described mounting flange comprises outlet mounting flange and import mounting flange, and outlet mounting flange is fixed on top, air outlet, and import mounting flange is fixed on pressure relief opening bottom;
Described guide rod is fixed on valve body bottom surface;
Described pressure relief plate is sleeved on guide rod, and is nested in pressure relief opening.
2. according to claim 1 a kind of with the variable pressure retaining valve of furnace pressure variation pressure release area, it is characterized in that: valve body end face is fixed on by screw in described air outlet.
3. according to claim 1 a kind of with the variable pressure retaining valve of furnace pressure variation pressure release area, it is characterized in that: described pressure relief opening covers the circular cut of valve body bottom surface, and is fixed on valve body bottom surface by screw.
4. according to claim 1 a kind of with the variable pressure retaining valve of furnace pressure variation pressure release area, it is characterized in that: described air outlet, pressure relief opening and pressure relief plate are round table-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210420774.0A CN103791130A (en) | 2012-10-30 | 2012-10-30 | Pressure retaining valve with pressure relief area variable along with furnace pressure changes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210420774.0A CN103791130A (en) | 2012-10-30 | 2012-10-30 | Pressure retaining valve with pressure relief area variable along with furnace pressure changes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103791130A true CN103791130A (en) | 2014-05-14 |
Family
ID=50667065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210420774.0A Pending CN103791130A (en) | 2012-10-30 | 2012-10-30 | Pressure retaining valve with pressure relief area variable along with furnace pressure changes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103791130A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1008548A1 (en) * | 1977-05-23 | 1983-03-30 | Войсковая Часть 11284 | Valve |
| CN2185358Y (en) * | 1994-04-18 | 1994-12-14 | 陈思孟 | Explosion-proof valve for industrial flame furnace |
| CN2830835Y (en) * | 2005-09-05 | 2006-10-25 | 郭勇辉 | Negative pressure sustain valve |
| CN201729812U (en) * | 2010-06-22 | 2011-02-02 | 合肥德博生物能源科技有限公司 | Automatic pressure relief anti-explosion device |
| CN202946733U (en) * | 2012-10-30 | 2013-05-22 | 天龙科技炉业(无锡)有限公司 | Pressure retaining valve capable of changing decompression area along with furnace pressure |
-
2012
- 2012-10-30 CN CN201210420774.0A patent/CN103791130A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1008548A1 (en) * | 1977-05-23 | 1983-03-30 | Войсковая Часть 11284 | Valve |
| CN2185358Y (en) * | 1994-04-18 | 1994-12-14 | 陈思孟 | Explosion-proof valve for industrial flame furnace |
| CN2830835Y (en) * | 2005-09-05 | 2006-10-25 | 郭勇辉 | Negative pressure sustain valve |
| CN201729812U (en) * | 2010-06-22 | 2011-02-02 | 合肥德博生物能源科技有限公司 | Automatic pressure relief anti-explosion device |
| CN202946733U (en) * | 2012-10-30 | 2013-05-22 | 天龙科技炉业(无锡)有限公司 | Pressure retaining valve capable of changing decompression area along with furnace pressure |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |