CN204628880U - A kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling - Google Patents
A kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling Download PDFInfo
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- CN204628880U CN204628880U CN201520325169.4U CN201520325169U CN204628880U CN 204628880 U CN204628880 U CN 204628880U CN 201520325169 U CN201520325169 U CN 201520325169U CN 204628880 U CN204628880 U CN 204628880U
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Abstract
The utility model relates to that a kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling, belonging to gas transmission pipeline safety installation technical field, not having the equipment of damping and venting of dust explosion function and technical problem that the danger that causes promotes concurrently for solving current low-pressure gas conveyance conduit.Formation comprises the body that is flexible coupling, upper flange and lower flange, the body that is flexible coupling is the hollow cavity of upper and lower opening, upper and lower opening is connected with upper flange and lower flange respectively, low-pressure gas normal through time, to be flexible coupling in the middle part of body in a tubular form, relief hole corresponding before and after both sides have, installs magnet ring in relief hole; When low-pressure gas generation detonation, the intrinsic single that is flexible coupling is oblate spheroid shape.The utility model integrates damping and venting of dust explosion function, and adopt magnet ring to control be flexible coupling the closed of body structure on two sides or unlatching, structure is simple, failure rate is low, and with low cost, can be widely used in industrial production and civil equipment, lift gas delivery safety, reduces equipment cost.
Description
Technical field
The utility model relates to one and is applicable to that the magnetic control of 10 ~ 200KPa low-pressure gas pipeline is explosion-proof to be flexible coupling, and belongs to gas transmission pipeline safety installation technical field.
Background technique
In industrial production; gas transmission pipeline all needs installation to be flexible coupling usually and alleviates equipment vibrations; proterctive equipment; at oven; on the fuel-burning equipment rear end high-temperature flue gas pipelines such as heat radiation tube; and some have on the gas transmission pipeline of detonate danger, also need explosion-proof relief valve is installed, for discharging a large amount of gases because detonation or blast produce in the state of accident as early as possible.Present Domestic is all kinds of be flexible coupling have multiple, but all without decompression function.In bursting diaphragm, film class and explosion-proof relief valve series products, explosion-proof relief valve belongs to Hard link, and without shock-absorbing function, and the Decompression valves price of Structural Hardware is more expensive, higher to pressure change requirement; And bursting diaphragm, film series products are both without shock-absorbing function, belong to expendable consumed product again, can not reuse, and equally with metal Decompression valves be not suitable for low pressure pipeline.
Have on the equipment of bradyseism and pressure release requirement at the same time, for ensureing safety, just must install simultaneously and be flexible coupling and Decompression valves, but in the pipe-line system of below 100KPa low pressure operation, the explosion-proof relief series products be not also suitable at present, although water sealing (sealing water) pipe can be adopted in construction to replace, but water seal, can not as effective partition by national regulation in hazardous gas conveying, simultaneously once there is accident, water seal can not automatically reset, and easily causes hazardous gas spillage; Do not requiring airtight, and having in the pipeline of certain negative pressure, also have the clear-cut open by design adopting horn mouth collecting hood, but this design is not suitable for hazardous gas, also there is certain risk simultaneously.
Model utility content
Technical problem to be solved in the utility model is to provide that a kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling; except can alleviating equipment vibrations proterctive equipment; when accident occurs, also there is automatic vent decompression function; and exhaust pressure relief process can automatically reset after completing, solve the defect in background technique.
The technological scheme solved the problems of the technologies described above is:
A kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling, formation comprises the body that is flexible coupling, upper flange and lower flange, the body that is flexible coupling is the hollow cavity of upper and lower opening, upper and lower opening is connected with upper flange and lower flange respectively, low-pressure gas normal through time, to be flexible coupling in the middle part of body in a tubular form, relief hole corresponding before and after both sides have, installs magnet ring in relief hole; When low-pressure gas generation detonation, the intrinsic single that is flexible coupling is oblate spheroid shape.
Above-mentioned a kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling, described be flexible coupling body low-pressure gas normal through time, the both sides of its tubular mid are arc surface, the arc surface of every side comprises former and later two, relief hole corresponding before and after two arc surfaces of every side having 2, install the magnet ring matched with its aperture in relief hole, two arc surfaces of every side rely on the magnetic-adsorption of magnet ring together.
Above-mentioned a kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling, the described magnet ring be installed in relief hole comprises diameter identical and the seal ring be fixedly connected with in order, apical ring, magnet retaining ring and base ring, magnet retaining ring anchor ring has the bore of assembling magnet in it.
Above-mentioned a kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling, described in be flexible coupling body by internal layer asbestos cloth, outer layer fiber cloth and the silica gel interlayer composition be positioned in the middle of internal and external layer.
The beneficial effects of the utility model are:
The utility model passes through upper and lower Flange joint on low-pressure gas pipeline, when low-pressure gas is normal through pipeline, the body both sides magnet ring that is flexible coupling relies on magnetic-adsorption together, relief hole is in closed condition, conveying gas or high-temperature flue gas by be flexible coupling body tubular mid normal through, now the utility model plays cushioning effect as being flexible coupling; Under accident condition, when manifold pressure be greater than magnet ring close magnetic force time, the body both sides that are flexible coupling are separated by magnetic-adsorption magnet ring together under gas pressure effect, the body both sides semicircular structure that is flexible coupling opens, the intrinsic single that is flexible coupling is that oblate spheroid shape is heaved, and pipeline inner high voltage gas is discharged by 4 magnet ring relief holes, reduces manifold pressure rapidly, now the utility model plays pressure release and cushioning effect simultaneously, with proterctive equipment; After accident, the body both sides that are flexible coupling again reset and are attached together under the magnetic force of magnet ring.The utility model integrates damping and venting of dust explosion function, magnet ring is adopted to control be flexible coupling the closed of body structure on two sides or unlatching, structure is simple, failure rate is low, and with low cost, be applicable to the low pressure pipeline of 10 ~ 200KPa pressure, can be widely used in industrial production and civil equipment, can be used for replacing being flexible coupling on the gas transmission pipeline that high-temperature flue gas pipeline and some have detonate danger and the combination of Decompression valves, lift gas delivery safety, reduces equipment cost.
Accompanying drawing explanation
Fig. 1 is that low-pressure gas is normal through the utility model schematic diagram during pipeline;
Fig. 2 is that low-pressure gas is normal through the utility model side view during pipeline;
The utility model plan view when Fig. 3 is deflagration accident having generation;
The utility model side view when Fig. 4 deflagration accident having occurs;
Fig. 5 is magnet ring structure schematic diagram;
In figure, mark is as follows: the body 1 that is flexible coupling, upper flange 2, lower flange 3, relief hole 4, magnet ring 5, seal ring 6, apical ring 7, magnet retaining ring 8, base ring 9, magnet 10, bore 11.
Embodiment
Fig. 1 ~ Fig. 4 shows, the utility model formation comprises the body 1 that is flexible coupling, upper flange 2 and lower flange 3, the body 1 that is flexible coupling is the hollow cavity of upper and lower opening, by internal layer asbestos cloth, outer layer fiber cloth and the silica gel interlayer composition be positioned in the middle of internal and external layer, upper and lower opening is connected with upper flange 2 and lower flange 3 respectively, low-pressure gas normal through time, be flexible coupling body 1 middle part in a tubular form, the both sides of tubular mid are arc surface, the arc surface of every side comprises former and later two, relief hole 4 corresponding before and after two arc surfaces of every side having 2, the magnet ring 5 matched with its aperture is installed in relief hole 4, two arc surfaces of every side rely on the magnetic-adsorption of magnet ring 5 together, when low-pressure gas generation detonation, the front and back arc surface of body 1 both sides that are flexible coupling makes the magnet ring 5 be attached together be separated from each other under the impact of exploding gas, and exploding gas is discharged rapidly by relief hole 4, and body 1 entirety that is now flexible coupling is in oblate spheroid shape.
Fig. 5 shows, and the magnet ring 5 be installed in the utility model in relief hole 4 comprises diameter identical and the seal ring 6 be fixedly connected with in order, apical ring 7, magnet retaining ring 8 and base ring 9, the anchor ring of magnet retaining ring 8 has the bore 11 of assembling magnet 10 in it.
Working procedure of the present utility model is as follows:
The utility model is connected on low-pressure gas pipeline by upper flange 2 and lower flange 3, under normal service condition, be flexible coupling body 1 both sides front and back arc surface by the magnetic-adsorption of the magnet ring 5 in relief hole 4 together, relief hole 4 is in closed condition, conveying gas or high-temperature flue gas by be flexible coupling body intermediate tubular passage normal through, now the utility model plays cushioning effect as being flexible coupling, without pressure release action; Under accident condition, when there is detonate in headend equipment or pipeline or causing manifold pressure to increase suddenly because of other reasons, once manifold pressure is greater than the closed magnetic force of magnet ring 5, magnet ring 5 is separated under the pressure effect of exploding gas, the front and back arc surface of body 1 both sides of being flexible coupling opens, and pipeline inner high voltage gas is discharged by 4 magnet ring relief holes 4, reduces manifold pressure rapidly, now the utility model plays pressure release and cushioning effect simultaneously, with proterctive equipment; The utility model changes the adsorption force of magnet ring 5, to adapt to the pipeline of different pressures by the quantity of magnet 10 in increase and decrease magnet retaining ring 8 anchor ring.
Claims (4)
1. the magnetic control for low-pressure gas pipeline is explosion-proof is flexible coupling, it is characterized in that: formation comprises the body that is flexible coupling (1), upper flange (2) and lower flange (3), the hollow cavity that the body (1) that is flexible coupling is upper and lower opening, upper and lower opening is connected with upper flange (2) and lower flange (3) respectively, low-pressure gas normal through time, be flexible coupling body (1) middle part in a tubular form, relief hole (4) corresponding before and after both sides have, installs magnet ring (5) in relief hole (4); When low-pressure gas generation detonation, the body that is flexible coupling (1) entirety is in oblate spheroid shape.
2. a kind of magnetic control for low-pressure gas pipeline is explosion-proof is as claimed in claim 1 flexible coupling, it is characterized in that: described in be flexible coupling body (1) low-pressure gas normal through time, the both sides of its tubular mid are arc surface, the arc surface of every side comprises former and later two, relief hole (4) corresponding before and after two arc surfaces of every side having 2, install the magnet ring (5) matched with its aperture in relief hole (4), two arc surfaces of every side rely on the magnetic-adsorption of magnet ring (5) together.
3. a kind of magnetic control for low-pressure gas pipeline is explosion-proof is as claimed in claim 1 or 2 flexible coupling, it is characterized in that: described in the magnet ring (5) be installed in relief hole (4) comprise diameter identical and the seal ring (6) be fixedly connected with in order, apical ring (7), magnet retaining ring (8) and base ring (9), the anchor ring of magnet retaining ring (8) has the bore (11) of assembling magnet (10) in it.
4. a kind of magnetic control for low-pressure gas pipeline is explosion-proof is as claimed in claim 1 or 2 flexible coupling, and it is characterized in that: described in be flexible coupling body (1) by internal layer asbestos cloth, outer layer fiber cloth and the silica gel interlayer composition be positioned in the middle of internal and external layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520325169.4U CN204628880U (en) | 2015-05-20 | 2015-05-20 | A kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520325169.4U CN204628880U (en) | 2015-05-20 | 2015-05-20 | A kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628880U true CN204628880U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520325169.4U Expired - Fee Related CN204628880U (en) | 2015-05-20 | 2015-05-20 | A kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling |
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| Country | Link |
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| CN (1) | CN204628880U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178566A (en) * | 2015-09-15 | 2015-12-23 | 珠海格力电器股份有限公司 | Air duct connecting device |
| CN105351668A (en) * | 2015-12-10 | 2016-02-24 | 重庆福悦安科技有限公司 | Overflow adapter for gas delivery pipes |
| CN106679182A (en) * | 2017-01-09 | 2017-05-17 | 广东万家乐燃气具有限公司 | Detonation-free balanced type gas water heater |
-
2015
- 2015-05-20 CN CN201520325169.4U patent/CN204628880U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178566A (en) * | 2015-09-15 | 2015-12-23 | 珠海格力电器股份有限公司 | Air duct connecting device |
| CN105351668A (en) * | 2015-12-10 | 2016-02-24 | 重庆福悦安科技有限公司 | Overflow adapter for gas delivery pipes |
| CN106679182A (en) * | 2017-01-09 | 2017-05-17 | 广东万家乐燃气具有限公司 | Detonation-free balanced type gas water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20180520 |