CN203572230U - Heating furnace explosion door - Google Patents
Heating furnace explosion door Download PDFInfo
- Publication number
- CN203572230U CN203572230U CN201320589087.1U CN201320589087U CN203572230U CN 203572230 U CN203572230 U CN 203572230U CN 201320589087 U CN201320589087 U CN 201320589087U CN 203572230 U CN203572230 U CN 203572230U
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- Prior art keywords
- heating furnace
- door
- explosion proof
- spring
- proof door
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- Expired - Lifetime
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Abstract
The utility model discloses a heating furnace explosion door. The heating furnace explosion door comprises a return device (2), a door cover (3), a door base (4), a rotating shaft (8) and a heating furnace body (9), wherein the return device (2) is connected with the door cover (3), and the rotating shaft (8) and the door base (4) are connected with the heating furnace body (9). The heating furnace explosion door is simple in structure, complete in function, good in sealing and heat insulation performance, high in reliability and safety and long in service life.
Description
Technical field:
The utility model relates to a kind of heating furnace, particularly a kind of for heating furnace explosion proof door.
Background technology:
Petroleum chemical industry heating furnace mostly is tubular heater at present, be negative pressure stove, while working for fear of heating furnace, in stove, exist fuel gas to exceed furnace pressure and quick-fried spray occurs, heating furnace body is damaged, need on heating furnace body, install explosion proof door additional and carry out pressure release.The anti-explosion door structure generally using in prior art is mainly the sealing of leading surface gravity, explosion-proof door closure is connected with a screw rod with body of heater doorframe, when washing explosion-proof door closure open after stressed effect in heating furnace, reaches the object of pressure release, its advantage is simple in structure, low price.Its shortcoming is to have poor stability, and single screw connecting structure is very large to body of heater damage in quick-fried when spray rapidly opened and closed process, and simultaneously because radiation chamber negative pressure is very large, the leakage of this anti-explosion door structure is very serious, is incubated also poor.Heating furnace is installed on outdoor conventionally, and existing its door closure of heating furnace explosion proof door directly contacts with doorframe, and sealing property is bad, can cause that rainwater infiltrates body of heater from the contact-making surface of door closure and doorframe, affects the service life of refractory material simultaneously.And existing explosion proof door door closure adopts refractory material, door closure is heavier, can not open in time door closure and carry out pressure release, and when 800 ℃ of temperature in stove, door closure outside wall temperature will exceed 350 ℃, easily causes that staff scalds simultaneously.
In order to address the above problem, people have proposed improvement project, these this enter technical scheme and be divided into two kinds, a kind of is the explosion proof door that increases rupture pressure disc, China CN91209887.2 and CN200920296908.6 adopt this scheme, but this scheme is owing to sealing without gravity and having increased rupture pressure disc, asbestos dividing plate, and with the fixing explosion proof door of bolt and nut, and with erosion control case, sealing or reasonable, when being subject to furnace pressure, the rupture pressure disc pressure release of breaking, but after breaking, need to change rupture pressure disc, to execute-in-place, make troubles, another kind is to be improved to spring type explosion-proofing door, what China CN201120186394.6 and CN201120299001.2 proposed is this technical scheme, main unit is basically identical, part has local improvement, while being all internal pressure increase, explosion-proof valve is opened, after pressure release, explosion proof door is rapid return under the effect of spring, can meet the needs of heating furnace operation, but the subject matter that spring explosion-proof valve exists is at present, when pressure is excessive, very easily cause spring to damage by pressure, explosion-proof valve cover plate is excessive to body of heater impulsive force when return, very easily cause local deformation or damage, at outdoor rainwater, occasionally there is seepage simultaneously, spring is also had to impact.
As can be seen here, need to carry out technological improvement to current petrochemical heating furnace explosion proof door, adopt the design concept of spring type explosion-proofing door, increase exclusion seal parts, improve the actual functional capability of explosion proof door, the form of optimizing structure, improves the on-the-spot reliability of operation of explosion proof door and security.
Utility model content:
The utility model is for the concrete feature of current heating furnace spring type explosion-proofing door, a kind of concrete structure of heating furnace explosion proof door is disclosed, retained the main unit structure of spring type explosion-proofing door, partial structurtes have been increased, improve actual functional capability, can improve the on-the-spot reliability of operation of explosion proof door and security, can reduce difficulty and the expense of inspection and maintenance simultaneously, greatly improve the life cycle of explosion proof door.
A kind of heating furnace explosion proof door of the utility model, comprises returning device 2, door closure 3, gate seat 4, rotating shaft 8, heating furnace body 9, it is characterized in that: returning device 2 links together with door closure 3, and rotating shaft 8 is connected with heating furnace body 9 with gate seat 4.
Described returning device 2 comprises screw rod 10, spring protecting jacket 11, spring 12 and return plate 16, and one end of screw rod 10, spring protecting jacket 11 and spring 12 is connected with return plate 16, and spring 12 and spring protecting jacket 11 are enclosed within on screw rod 10.
Described screw rod 10 length are the screw rod of 350～400mm, have four mutually threaded 10 door closure 3 and returning device 2 are linked together.
Described door closure 3 is a boss 14 near the one end in burner hole 7, and boss 14 is provided with sealing ring 13 and buffer spring 5.
Described boss 14 ledge 350～450mm's is square, high 140～180mm.
Described heating furnace boss 14 bodies of heater 9 are provided with sealing ring platform 15, at sealing ring platform 15, are provided with spring groove 6.
Described sealing ring platform 15 is wide is 50～150mm, and the degree of depth is 45～60mm.
Described a kind of heating furnace explosion proof door is also provided with dash board 1 on heating furnace body 9, and dash board 1 is positioned at gate seat 4 tops.
Described fire hole 7 inner side 350～450mm's is square, and outside 500～600mm's is square.
Heating furnace body fire hole brick center offers exhaust gases passes, and door closure inner side step place is provided with flexible sealing ring, and flexible sealing ring plays important sealing function under the effect of outside spring force.Explosion door is bolted on heating furnace body by the rotating shaft on gate seat and surrounding, and when the bolt on gate seat takes off, explosion door entirety can be opened by rotating shaft.Door closure is movably connected on screw rod fixing on explosion proof door gate seat, and explosion door is fixed on body of heater by the spring on screw rod and nut.Screw rod is along vertical being uniformly distributed of explosion proof door gate seat surrounding, and one end of spring withstands on explosion door, and the other end is fixed with steel plate and nut, can control by adjusting the position of screw rod end nut the unlatching critical pressure of explosion proof door.Body of heater fire hole step place has buffer spring groove, inner uniform multiple buffer springs, the impact concrete to body of heater while reducing door closure return.Whole explosion proof door top is provided with dash board, avoids outside rainwater to enter body of heater and protection returning device.
The utility model has increased exclusion seal parts everywhere on the basis of conventional spring type explosion-proofing door, dash board, buffering elastic circlip, flexible sealing ring and spring protecting jacket.Dash board prevents that outside rainwater from entering body of heater by explosion proof door, protects external springs element on the other hand on the one hand; Buffering elastic circlip is mainly to prevent explosion proof door enormous impact power to body of heater when return, protection body of heater and explosion proof door; Flexible sealing ring is positioned at door closure inner side step place, and under the promotion of acting force of the spring, flexible sealing ring forms good sealing effectiveness at the groove that buffer spring is installed, and flexible material can adopt alumina silicate etc.
The operation principle of heating furnace explosion proof door: be when there is fuel gas in stove, may cause burner hearth or back-end ductwork generation detonation or second-time burning, cause furnace pressure to raise, when pressure is increased to certain value, can open voluntarily pressure release, to protect the safety device of heating furnace body; After declining in stove, explosion proof door door closure returns to sealing state under returning device spring action, and owing to there is buffering elastic circlip, door closure return is softly steady.The utility model is owing to adopting spring type explosion-proofing door, exclusion seal parts have been increased, the perfect structure function of explosion proof door, has solved the poor and existing spring type explosion-proofing door of security seal that petrochemical heating furnace adopts the deadweight turnover plate type explosion proof door to exist and has moved jiggly feature.
A kind of heating furnace anti-explosion door structure of the utility model is simple, perfect in shape and function, and sealing thermal insulation is good, reliability and safe, life cycle is longer.
Compared with prior art the utlity model has following characteristics and advantage:
A kind of heating furnace explosion proof door of the utility model adopts spring type explosion-proofing door design concept, increase exclusion seal parts, improve the actual functional capability of explosion proof door, the form of optimizing structure, sealing thermal insulation is good, improved the on-the-spot reliability of operation of explosion proof door and security, in petrochemical industry tubular heater field, using value is obvious.
(1) the utility model adopts perfect hermetically-sealed construction, in normal course of operation, guarantees reliable adiabatic heat-insulation, does not exist sealing surface to alter the undesirable conditions such as cigarette.
(2) the utility model adopts spring structure, while needing pressure release when occurring furnace pressure to raise, can be quick on the draw, and discharge capacity is enough large, opens immediately without relating to rear phenomenon.Simultaneously on returning device, increased spring protecting jacket, avoided opening when too quickly and cause the phenomenon of damaging spring by pressure, at body of heater fire hole step, buffering elastic circlip has been installed, the concrete impulsive force to body of heater while having avoided the rapid return of door closure.
(3), after the utility model explosion proof door door closure stabilizes, under the effect of pressure, flexible sealing ring forms convex surface sealing at groove, closed good, gas leakage can not occur on-the-spot, even if rain enters, also can get rid of from groove.
(4) the utility model is due to side rotating shaft being installed, on gate seat bolt take off after integral demounting convenient.In the time of need to checking burner hearth, quick-detachment is opened explosion proof door, by explosion proof door, enters burner hearth maintenance.Can fast restore after maintenance to duty.
Accompanying drawing explanation:
Fig. 1 is a kind of heating furnace explosion proof door of the utility model cross section structure schematic diagram.
Fig. 2 is a kind of heating furnace explosion proof door of the utility model left view.
Wherein: 1. dash board, 2. returning device, 3. door closure, 4. gate seat, 5. buffer spring, 6. spring groove; 7. fire hole, 8. rotating shaft, 9. heating furnace body, 10. screw rod, 11. spring protecting jackets; 12. springs, 13. sealing rings, 14. boss, 15. heating furnace body sealing ring platforms, 16. return plates.
The specific embodiment:
Below in conjunction with accompanying drawing, further illustrate a kind of heating furnace explosion proof door of the utility model, but do not limit scope of the present utility model.。
As depicted in figs. 1 and 2, on heating furnace radiation chamber body of heater, have an inner side 400mm × 400mm, the ladder fire hole 7 of outside 500mm × 500mm, fire hole 7 step places have buffer spring groove 6, the inner uniform 4-8 buffer spring 5 of groove 6, the impact concrete to body of heater while reducing door closure return.Gate seat 4 one sides are equipped with rotating shaft 8, link together with body of heater, simultaneously on gate seat 4, make to be joined with bolts, and adopt the sealing of asbestos seal band between between gate seat 4 and body of heater, when shutdown maintenance, unload the connecting bolt on gate seat 4, can open easily explosion proof door.Gate seat 4 outsides mainly comprise door closure 3 and returning device 2, and door closure 3 ladder platform places are equipped with alumina silicate flexible sealing ring 13, and returning device 2 is mainly by screw rod 10, spring protecting jacket 11 and spring 12 etc.On explosion proof door gate seat 4, be vertically installed with the screw rod 10 that four length are 380mm, four screw rods 10 are evenly distributed on four centers, limit of explosion proof door gate seat, on four screw rods 11, spring 12 is housed respectively, one end for spring 12 withstands on explosion every lid 3, the other end carries out fastening compression by steel plate ring and nut shim by the spring 12 being inserted on screw rod 10, thereby explosion every lid 3 is fixed on gate seat 4.Four screw rods 10 are equipped with spring protecting jacket 11 near steel plate ring one end, are mainly used in preventing that valve from causing spring failure while opening rapidly.When quick-fried spray occurs heating furnace, quick-fried spray pressure promotes door closure 3 and the spring 12 on explosion proof door, and door closure 3 is opened, and discharges furnace pressure.The rapid pressurized of spring 12 shortens, and when venting pressure is less than certain value, spring 12 can recover automatically, closes the door closure 3 on explosion proof door.Door closure during return, is subject to the effect of buffer spring 5 under the effect of spring 23, has avoided powerful impulsive force, can play the effect of protection body of heater, and on door closure 3, flexible sealing ring 13 can form at buffer spring groove 6 places convex surfaces sealing, good sealing effect simultaneously.Due to spring 12, to design surplus capacity larger, and problem can not deform.At whole explosion proof door top, be provided with dash board 1, prevent that on the one hand rainwater from entering in stove along bar seam, protect on the other hand whole returning device 2, the cycle of operation of extension fixture, the reliability of raising equipment.
A kind of heating furnace explosion proof door of the utility model has adopted the structure theory of spring type explosion-proofing door, by increasing function element, improves the structure function of explosion proof door, good seal performance, and switch is soft steadily, has water-proof function concurrently, reliability and safe in running.The explosion proof door process scope of application of the present utility model is wide, operates steadily, and reliability and safe, reduces Construction and Maintenance difficulty, for the explosion proof door design of heating furnace provides a kind of perfect frame.
Claims (9)
1. a heating furnace explosion proof door, comprise returning device (2), door closure (3), gate seat (4), rotating shaft (8), heating furnace body (9), it is characterized in that: returning device (2) links together with door closure (3), and rotating shaft (8) is connected with heating furnace body (9) with gate seat (4).
2. according to a kind of heating furnace explosion proof door claimed in claim 1; it is characterized in that: described returning device (2) comprises screw rod (10), spring protecting jacket (11), spring (12) and return plate (16); one end of screw rod (10), spring protecting jacket (11) and spring (12) is connected with return plate (16), and spring (12) and spring protecting jacket (11) are enclosed within on screw rod (10).
3. according to a kind of heating furnace explosion proof door claimed in claim 1, it is characterized in that: described door closure (3) is a boss (14) near the one end in burner hole (7), and boss (14) is provided with sealing ring (13) and buffer spring (5).
4. according to a kind of heating furnace explosion proof door claimed in claim 1, it is characterized in that: described boss (14) ledge 350～450mm's is square, high 140～180mm.
5. according to a kind of heating furnace explosion proof door claimed in claim 1, it is characterized in that: described heating furnace body (9) is provided with sealing ring platform (15), at sealing ring platform (15), is provided with spring groove (6).
6. according to a kind of heating furnace explosion proof door claimed in claim 1, it is characterized in that: the described wide 50～150mm of being of sealing ring platform (15), the degree of depth is 45～60mm.
7. according to a kind of heating furnace explosion proof door claimed in claim 1, it is characterized in that: described fire hole (7) inner side 350～450mm's is square, and outside 500～600mm's is square.
8. according to a kind of heating furnace explosion proof door claimed in claim 1, it is characterized in that: on described heating furnace body (9), be also provided with dash board (1), dash board (1) is positioned at gate seat (4) top.
9. according to a kind of heating furnace explosion proof door claimed in claim 1, it is characterized in that: described screw rod (10) length is the screw rod of 350～400mm, four mutually threaded (10) link together door closure (3) and returning device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589087.1U CN203572230U (en) | 2013-09-16 | 2013-09-16 | Heating furnace explosion door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589087.1U CN203572230U (en) | 2013-09-16 | 2013-09-16 | Heating furnace explosion door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203572230U true CN203572230U (en) | 2014-04-30 |
Family
ID=50539958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589087.1U Expired - Lifetime CN203572230U (en) | 2013-09-16 | 2013-09-16 | Heating furnace explosion door |
Country Status (1)
| Country | Link |
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| CN (1) | CN203572230U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104768348A (en) * | 2015-03-20 | 2015-07-08 | 上海惠亚电子有限公司 | Method for preventing cabinet arc blast damage |
| CN106323017A (en) * | 2016-11-17 | 2017-01-11 | 遵义市润丰源钢铁铸造有限公司 | Smelting furnace exhaust device |
| CN108317887A (en) * | 2017-07-04 | 2018-07-24 | 山东沃普农业装备科技有限公司 | A kind of heat exchanger venting device |
| CN108408282A (en) * | 2018-03-06 | 2018-08-17 | 佛山市高明区杨和金属材料专业镇技术创新中心 | A kind of waterproof anti-explosion atmospheric storage tank |
| CN108750435A (en) * | 2018-04-28 | 2018-11-06 | 佛山市高明区杨和金属材料专业镇技术创新中心 | A kind of industry normal pressure storage tank |
| CN113915636A (en) * | 2021-10-08 | 2022-01-11 | 湖南华润电力鲤鱼江有限公司 | Boiler explosion door and boiler thereof |
-
2013
- 2013-09-16 CN CN201320589087.1U patent/CN203572230U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104768348A (en) * | 2015-03-20 | 2015-07-08 | 上海惠亚电子有限公司 | Method for preventing cabinet arc blast damage |
| CN104768348B (en) * | 2015-03-20 | 2017-08-01 | 上海惠亚电子有限公司 | Prevent the method for rack electric arc blast injury |
| CN106323017A (en) * | 2016-11-17 | 2017-01-11 | 遵义市润丰源钢铁铸造有限公司 | Smelting furnace exhaust device |
| CN106323017B (en) * | 2016-11-17 | 2018-05-18 | 遵义市润丰源钢铁铸造有限公司 | Smelting furnace exhaust apparatus |
| CN108317887A (en) * | 2017-07-04 | 2018-07-24 | 山东沃普农业装备科技有限公司 | A kind of heat exchanger venting device |
| CN108408282A (en) * | 2018-03-06 | 2018-08-17 | 佛山市高明区杨和金属材料专业镇技术创新中心 | A kind of waterproof anti-explosion atmospheric storage tank |
| CN108750435A (en) * | 2018-04-28 | 2018-11-06 | 佛山市高明区杨和金属材料专业镇技术创新中心 | A kind of industry normal pressure storage tank |
| CN113915636A (en) * | 2021-10-08 | 2022-01-11 | 湖南华润电力鲤鱼江有限公司 | Boiler explosion door and boiler thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |