CN103215412B - Safety valve device for stainless steel bright annealing furnace - Google Patents
Safety valve device for stainless steel bright annealing furnace Download PDFInfo
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- CN103215412B CN103215412B CN201310139990.2A CN201310139990A CN103215412B CN 103215412 B CN103215412 B CN 103215412B CN 201310139990 A CN201310139990 A CN 201310139990A CN 103215412 B CN103215412 B CN 103215412B
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- valve body
- sealing liquid
- stainless steel
- bright annealing
- pipe
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- 238000000137 annealing Methods 0.000 title claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 22
- 239000010935 stainless steel Substances 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 70
- 238000007789 sealing Methods 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000010276 construction Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 49
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 25
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 17
- 239000001257 hydrogen Substances 0.000 abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 17
- 239000007789 gas Substances 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract 6
- 239000000203 mixture Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000004568 cement Substances 0.000 description 3
- 206010044565 Tremor Diseases 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention provides a safety valve device for a stainless steel bright annealing furnace. The safety valve device consists of an air feed pipe, an air exhaust pipe, a valve body and sealing liquid, wherein the valve body is of an open type structure; a partition plate is arranged inside the valve body; two side edges of the partition plate are tightly fixed on the inner wall of the valve body; the upper end of the partition plate is flush with the top of the valve body, and the lower end of the partition plate is close to but not in contact with the bottom of the valve body; the partition plate divides the valve body into a first valve body and a second valve body; the sealing liquid is accommodated in the valve body; the set liquid level height of the sealing liquid is higher than the lower end of the partition plate; the air feed pipe and the air exhaust pipe are connected with the opening of the second valve body through flanges in a closed manner; one end of the air feed pipe extends into the sealing liquid through the second valve body; and the air exhaust pipe is led out of the second valve body. The safety valve device has the beneficial effects that when all the valves are out of control, and a large amount of accidental nitrogen is fed into the furnace, under the condition of set normal pressure of the gas in the furnace, hydrogen can be steadily replaced, and the safety of the furnace is effectively guaranteed; and the safety valve device is simple in structure and is safe and practicable.
Description
Technical field
The present invention relates to stainless steel bright annealing oven field, be specifically related to a kind of stainless steel bright annealing oven relief valve device that can guarantee that furnace pressure is stable in the state of accident.
Background technology
Stainless steel bright annealing oven function is under protective atmosphere environment, Stainless Steel Band to be heat-treated, and the stress producing while eliminating rolling, improves metallographic structure, improves band steel mechanical property.Not oxidized in annealing process for guaranteeing stainless steel, furnace atmosphere is nitrogen and hydrogen mixed gas atmosphere, and hydrogen content is more than 95%.For guaranteeing that hydrogen uses safety, under accidental state, must guarantee furnace pressure set under barotropic condition fast as far as possible by stove in nitrogen and hydrogen mixture accident nitrogen replacement out.Valve on stove has strict control requirement, and accident nitrogen automatic regulating valve door is closed type (automatically opening when thering is no electricity or thering is no pressurized air), and hydrogen automatic regulating valve door is open type (automatically closing when thering is no electricity or thering is no pressurized air).So in the state of accident, the hydrogen valve passing in stove is closed completely, and nitrogen valve is opened completely.Because now there is a large amount of nitrogen to pass in stove, for keeping furnace pressure stable (malleation), prevent that outside air from entering in stove and the too high damage equipment of furnace pressure, must there is a kind of device in the out of control situation of all valves of stove, balance to pass into the nitrogen in stove, guaranteeing the nitrogen hydrogen mixeding gas identical with passing into nitrogen volume to be discharged to chimney the inside under the stable prerequisite of furnace pressure, be discharged to outside factory building by chimney.
Summary of the invention
The technical problem to be solved in the present invention is, the problems referred to above that exist in annealing process for existing stainless steel provide the stainless steel bright annealing oven relief valve device of stove security under a kind of effective assurance accidental state.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
A kind of stainless steel bright annealing oven relief valve device, formed by inlet pipe, vapor pipe, valve body and sealing liquid, described valve body is unenclosed construction, in valve body, be provided with a dividing plate, the dual-side of dividing plate is closely fixed on the inwall of valve body, the upper end of dividing plate flushes with the top of valve body, lower end near but do not contact the bottom of valve body, valve body is divided into the first valve body, second valve body two portions by dividing plate; Sealing liquid is contained in valve body, and the setting liquid level of sealing liquid is higher than the lower end of dividing plate; Inlet pipe and vapor pipe be airtight connection of open ports with the second valve body by flange, and one end of inlet pipe stretches in sealing liquid by the second valve body, and vapor pipe leads to the outside of the second valve body.
In such scheme, described the first valve body is provided with filling pipe and water shoot, and filling pipe is connected to the open upper end of the first valve body, and water shoot is welded on the side of the first valve body, and the mouth of pipe height of water shoot is consistent with the setting liquid level of sealing liquid.
In such scheme, the junction of described vapor pipe and the second valve body is hydraucone shape, and vapor pipe entirety forms the structure that top diameter is little, base diameter is large, is convenient to gas and discharges.
In such scheme, the top of described the second valve body is also provided with transparent vision slit, and vision slit is connected on the second valve body by flange, for observe the situation in the second valve body by it.
In such scheme, the valve wall of described valve body is provided with scale marks, and scale marks is for observing and demarcate the height of sealing liquid.
In such scheme, the bottom of described valve body is provided with mudhole.
In such scheme, described sealing liquid is water or sealing oil.
In such scheme, the inner chamber of described the second valve body is larger than the inner chamber of the first valve body.
In such scheme, the height of described the second valve body is higher than the first valve body.
Apparatus of the present invention apply to stainless steel bright annealing oven, can in the time of accidental state, guarantee annealing furnace security.Inlet pipe one end is communicated with in stove, and the other end stretches in sealing liquid by the second valve body, and sealing liquid is added to setting height by the filling pipe on the first valve body, and the depth D that inlet pipe stretches in sealing liquid can be adjusted setting according to the steady pressure requiring in stove; Vapor pipe one end is connected with chimney, and the other end is connected with the second valve body, and junction is hydraucone shape, is convenient to gas and discharges; The diameter of inlet pipe and vapor pipe calculates according to passing into the interior accident nitrogen amount of stove and furnace inner gas pressure; The liquid level of sealing liquid can conveniently be observed and demarcate to scale marks on valve body; Filling pipe and water shoot can supplement sealing liquid to valve body continuously, and in assurance valve body, the liquid level of sealing liquid is stable, prevent the decline of sealing liquid liquid level from causing too much furnace pressure shakiness and affect voltage regulation result: when after the sealing liquid volatilization in valve body, fill into sealing liquid from filling pipe and flow into valve body, when the liquid level of sealing liquid arrives the mouth of pipe height of water shoot, sealing liquid will flow out automatically, guarantees that the liquid level of sealing liquid in valve body is stable; Phenomenon in the second valve body when vision slit can conveniently be observed exhaust, mudhole is used for preventing pipe blocking, guarantees that the function of whole device better realizes.
Working process of the present invention: in the time that workshop has a power failure or drives the pressurized air of autocontrol valve to die to have an accident, fail-safe nitrogen will pass in stove fast with set amount, and stove is an enclosed space, now furnace pressure will raise gradually, inlet pipe is communicated with in stove, now the pressure in inlet pipe also can raise gradually, in the time reaching setting pressure, sealing liquid in inlet pipe will be discharged from, nitrogen and hydrogen mixture in stove will enter in valve body, valve body communicates with chimney by vapor pipe, the nitrogen and hydrogen mixture now entering in valve body just can be by emission by exhaust pipe in chimney.The accident nitrogen amount that this process passes into while carrying out continuously in stove is consistent with the amount of the nitrogen and hydrogen mixture of discharging from vapor pipe, in can guaranteeing in stove in the situation that of certain malleation stove, nitrogen and hydrogen mixture cements out rapidly, can effectively stop again the air of outside to enter in stove and cause danger by inlet pipe, guarantee stove safety.
The present invention has following beneficial effect: coordinated and realized annealing furnace in the state of accident by inlet pipe, vapor pipe, valve body and sealing liquid, when out of hand, the lot of accident nitrogen of all valves passes in stove, can guarantee that furnace gas cements out hydrogen stably in the situation that setting malleation, voltage stabilizing capacity adjustment is convenient, effectively guarantees stove security; Simple in structure, reliability is high, safe and practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the side-view of Fig. 1.
In figure: 1-inlet pipe, 2-vapor pipe, 3-valve body, 31-the first valve body, 32, the second valve bodies, 4-sealing liquid, 5-filling pipe, 6-water shoot, 7-vision slit, 8-scale marks, 9-mudhole, 10-dividing plate.
Embodiment
Below in conjunction with embodiment and accompanying drawing, technical scheme of the present invention is further described in detail.
Shown in Fig. 1 ~ Fig. 2, stainless steel bright annealing oven relief valve device of the present invention, formed by inlet pipe 1, vapor pipe 2, valve body 3 and sealing liquid 4, described valve body 3 is unenclosed construction, in valve body 3, be provided with a dividing plate 10, the dual-side of dividing plate 10 is closely fixed on the inwall of valve body 3, and the upper end of dividing plate 10 flushes with the top of valve body 3, lower end near but do not contact the bottom of valve body 3, valve body 3 is divided into the first valve body 31, second valve body 32 two portions by dividing plate 10; Sealing liquid 4 is contained in valve body 3, and the setting liquid level of sealing liquid 4 is higher than the lower end of dividing plate 10; Inlet pipe 1 and vapor pipe 2 be airtight connection of open ports with the second valve body 32 by flange, and one end of inlet pipe 1 stretches in sealing liquid 4 by the second valve body 32, and vapor pipe 2 leads to the outside of the second valve body 32.
On described the first valve body 31, be also provided with filling pipe 5 and water shoot 6, filling pipe 5 is connected to the open upper end of the first valve body 31, and water shoot 6 is welded on the side of the first valve body 31, and the mouth of pipe height of water shoot 6 is consistent with the setting liquid level of sealing liquid 4.
The junction of described vapor pipe 2 and the second valve body 32 is hydraucone shape, and vapor pipe 2 entirety form the structure that top diameter is little, base diameter is large, are convenient to gas and discharge.
The top of described the second valve body 32 is also provided with transparent vision slit 7, and vision slit 7 is connected on the second valve body 32 by flange, for observe the situation in the second valve body 32 by it.
The valve wall of described valve body 3 is provided with scale marks 8, and scale marks 8 is for observing and demarcate the height of sealing liquid 4.
The bottom of described valve body 3 is provided with mudhole 9.
Described sealing liquid 4 is water or sealing oil, and embodiment sets forth as an example of water example.
The inner chamber of described the second valve body 32 is larger than the inner chamber of the first valve body 31, is convenient to save material.
The height of described the second valve body 32, higher than the first valve body 31, is convenient to more convenient carry out moisturizing and draining.
Apparatus of the present invention apply to stainless steel bright annealing oven, can in the time of accidental state, guarantee annealing furnace security.Inlet pipe 1 one end is communicated with in stove, the other end stretches in sealing liquid 4 by the second valve body 32, sealing liquid 4 is added to setting height by the filling pipe 5 on the first valve body 31, and the depth D that inlet pipe 1 stretches in sealing liquid 4 can be adjusted setting according to the steady pressure requiring in stove; Vapor pipe 2 one end are connected with chimney, and the other end is connected with the second valve body 32, and junction is hydraucone shape, are convenient to gas and discharge; The diameter of inlet pipe 1 and vapor pipe 2 calculates according to passing into the interior accident nitrogen amount of stove and furnace inner gas pressure; The liquid level of sealing liquid 4 can conveniently be observed and demarcate to scale marks 8 on valve body 3; Filling pipe 5 and water shoot 6 supplement sealing liquid 4 can to continuously valve body 3, and in assurance valve body, the liquid level of sealing liquid 4 is stable, prevent that sealing liquid 4 liquid levels declines from causing too much furnace pressure shakiness and affecting voltage regulation result: when after sealing liquid 4 volatilizations in valve body 3, fill into sealing liquid 4 from filling pipe 5 and flow into valve body 3, when the liquid level of sealing liquid 4 arrives the mouth of pipe height of water shoot 6, sealing liquid 4 will flow out automatically, guarantees that the liquid level of the interior sealing liquid 4 of valve body 3 is stable; The interior phenomenon of the second valve body 32 when vision slit 7 can conveniently be observed exhaust, mudhole 9, for preventing pipe blocking, guarantees that the function of whole device better realizes.
Working process of the present invention: in the time that workshop has a power failure or drives the pressurized air of autocontrol valve to die to have an accident, fail-safe nitrogen will pass in stove fast with set amount, and stove is an enclosed space, now furnace pressure will raise gradually, inlet pipe 3 is communicated with in stove, now the pressure in inlet pipe 3 also can raise gradually, in the time reaching setting pressure, sealing liquid 4 in inlet pipe 3 will be discharged from, nitrogen and hydrogen mixture in stove will enter in valve body 3, valve body 3 communicates with chimney by vapor pipe 2, the nitrogen and hydrogen mixture now entering in valve body 3 just can be discharged in chimney and be gone by vapor pipe 2.The accident nitrogen amount that this process passes into while carrying out continuously in stove is consistent with the amount of the nitrogen and hydrogen mixture of discharging from vapor pipe, in can guaranteeing in stove in the situation that of certain malleation stove, nitrogen and hydrogen mixture cements out rapidly, can effectively stop again the air of outside to enter in stove and cause danger by inlet pipe 3, guarantee stove safety.
Above-described is only preferred embodiment of the present invention; certainly can not limit with this interest field of the present invention; therefore adopt identical with this example or close method, or the equivalence of doing according to the present patent application the scope of the claims variation, protection scope of the present invention still belonged to.
Claims (8)
1. a stainless steel bright annealing oven relief valve device, it is characterized in that: formed by inlet pipe (1), vapor pipe (2), valve body (3) and sealing liquid (4), described valve body (3) is unenclosed construction, in valve body (3), be provided with a dividing plate (10), the dual-side of dividing plate (10) is closely fixed on the inwall of valve body (3), the upper end of dividing plate (10) flushes with the top of valve body (3), lower end near but do not contact the bottom of valve body (3), valve body (3) is divided into the first valve body (31), the second valve body (32) two portions by dividing plate (10); Sealing liquid (4) is contained in valve body (3), and the setting liquid level of sealing liquid (4) is higher than the lower end of dividing plate (10); Inlet pipe (1) and vapor pipe (2) be airtight connection of open ports with the second valve body (32) by flange, and one end of inlet pipe (1) is stretched in sealing liquid (4) by valve body (3).
2. stainless steel bright annealing oven relief valve device as claimed in claim 1, it is characterized in that: on described the first valve body (31), be also provided with filling pipe (5) and water shoot (6), filling pipe (5) is connected to the open upper end of the first valve body (31), water shoot (6) is welded on the side of the first valve body (31), and the mouth of pipe height of water shoot (6) is consistent with the setting liquid level of sealing liquid (4).
3. stainless steel bright annealing oven relief valve device as claimed in claim 1, it is characterized in that: described vapor pipe (2) is hydraucone shape with the junction of the second valve body (32), vapor pipe (2) entirety forms the structure that top diameter is little, base diameter is large.
4. stainless steel bright annealing oven relief valve device as claimed in claim 1, it is characterized in that: the top of described the second valve body (32) is also provided with transparent vision slit (7), it is upper that vision slit (7) is connected to the second valve body (32) by flange, for observe the situation in the second valve body (32) by it.
5. stainless steel bright annealing oven relief valve device as claimed in claim 1, is characterized in that: the valve wall of described valve body (3) is provided with scale marks (8), scale marks (8) is for observing and demarcate the height of sealing liquid (4).
6. stainless steel bright annealing oven relief valve device as claimed in claim 1, is characterized in that: the bottom of described valve body (3) is provided with mudhole (9).
7. stainless steel bright annealing oven relief valve device as claimed in claim 1, is characterized in that: described sealing liquid (4) is water or sealing oil.
8. stainless steel bright annealing oven relief valve device as claimed in claim 1, is characterized in that: the inner chamber of described the second valve body (32) is larger than the inner chamber of the first valve body (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139990.2A CN103215412B (en) | 2013-04-22 | 2013-04-22 | Safety valve device for stainless steel bright annealing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310139990.2A CN103215412B (en) | 2013-04-22 | 2013-04-22 | Safety valve device for stainless steel bright annealing furnace |
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| CN103215412A CN103215412A (en) | 2013-07-24 |
| CN103215412B true CN103215412B (en) | 2014-06-25 |
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| CN201310139990.2A Active CN103215412B (en) | 2013-04-22 | 2013-04-22 | Safety valve device for stainless steel bright annealing furnace |
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| CN107388828A (en) * | 2017-08-25 | 2017-11-24 | 太湖县光华铝业有限公司 | The special controller for gas of waste aluminum smelting furnace |
| CN110643805B (en) * | 2019-08-30 | 2021-03-26 | 邯郸钢铁集团有限责任公司 | Furnace chamber atmosphere fluctuation pressurization replacement method for continuous annealing furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203284425U (en) * | 2013-04-22 | 2013-11-13 | 中冶南方(武汉)威仕工业炉有限公司 | Safety valve device for stainless steel bright annealing furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203284425U (en) * | 2013-04-22 | 2013-11-13 | 中冶南方(武汉)威仕工业炉有限公司 | Safety valve device for stainless steel bright annealing furnace |
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Address after: 430223 No. 33 University Park Road, Donghu Development Zone, Wuhan City, Hubei Province Patentee after: WISDRI (WUHAN) THERMAL INDUSTRY Co.,Ltd. Address before: 430223 No. 33 University Park Road, Donghu Development Zone, Wuhan City, Hubei Province Patentee before: WISDRI (WUHAN) WISFUR THERMAL TECHNOLOGY CO.,LTD. |
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Address after: 430223 No. 33 University Park Road, Donghu Development Zone, Wuhan City, Hubei Province Patentee after: WISDRI (WUHAN) WISFUR THERMAL TECHNOLOGY CO.,LTD. Address before: 430205 No. 33 University Park Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: WISDRI (WUHAN) WIS INDUSTRIAL FURNACE Co.,Ltd. |