CN204238799U - A kind of circular flame-proof type explosion-proof form - Google Patents
A kind of circular flame-proof type explosion-proof form Download PDFInfo
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- CN204238799U CN204238799U CN201420578679.8U CN201420578679U CN204238799U CN 204238799 U CN204238799 U CN 204238799U CN 201420578679 U CN201420578679 U CN 201420578679U CN 204238799 U CN204238799 U CN 204238799U
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Abstract
The utility model relates to explosion-proof form field, be specifically related to a kind of circular flame-proof type explosion-proof form, comprise form seat, explosion-proof Transparent Parts, it is characterized in that: also comprise sealing mat, fire-protection ring, threaded ring, annular gland, self-tapping screw, fire-protection ring, explosion-proof Transparent Parts, sealing mat is loaded successively in described form seat, fix with threaded ring afterwards, threaded ring loads annular gland outward, form seat and annular gland are fixed by self-tapping screw, and self-tapping screw hand of spiral is vertical with threaded ring hand of spiral.The beneficial effects of the utility model are that the connection of explosion-proof form is fastening, effectively can prevent loose or dislocation, and it are simple to have structure, easy to maintenance, the advantages such as processing cost is low.
Description
Technical field
The utility model belongs to explosion-proof form field, especially relates to a kind of circular flame-proof type explosion-proof form.
Background technology
Flame-proof type explosion-proof pattern is that the parts that equipment may light explosive gas mixture are all enclosed in a shell, its shell can bear by any mating face of shell or structure interval, the flammable mixtures penetrating into enclosure is not damaged at internal explosion, and can not cause lighting of the outside explosive atmosphere formed by a kind of, multiple gases or steam.Flame-proof type equipment is widely used in chemical industry, coal, oil etc. and has in the environment of damp existence, in order to safety observes monitoring equipment operating condition, is substantially all provided with flame-proof type explosion-proof form in flame-proof type explosion-proof equipment.Connected mode in existing technology between explosion-proof of flame-proof type explosion-proof form and form seat mainly contains two kinds, be the plate-like platen loading outward band shape projection at explosion-proof, the bolt being parallel to explosion-proof Transparent Parts at platen terrace part by hand of spiral is connected on form seat; Another kind is that the threaded ring being parallel to explosion-proof Transparent Parts by hand of spiral outside transparent explosion-proof part is connected on form seat.These two kinds of connected modes are all the connections such as bolt or threaded ring by simple single direction screw thread, connect fastening not.Light or heavy vibrations are had unavoidably in equipment runs, single direction threaded connector is easy to loosen and even comes off in equipment vibrations, this not only affects the normal use of form, even affects the flame-proof explosion-proof effect of whole equipment, cause serious accident time serious.
Summary of the invention
The utility model provides a kind of circular flame-proof type explosion-proof form, solves to be connected fastening not in explosion-proof form between explosion-proof with form seat, easily loosens the problem even come off in equipment running process.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the utility model devises a kind of flame-proof type explosion-proof form, in form seat, load fire-protection ring, explosion-proof Transparent Parts, sealing mat successively, described explosion-proof Transparent Parts is made up of tempered glass and the rupture pressure disc of PET material that is evenly coated on tempered glass.Do using threaded ring as the first securing member after loading sealing mat and once fix, the hand of spiral of obvious threaded ring is parallel to explosion-proof Transparent Parts.In order to strengthen fastening effect, annular gland being installed outward at threaded ring, doing secondary by the second securing member self-tapping screw between annular gland and form seat and fixing.Self-tapping screw shoots form seat inside annular gland ring, and hand of spiral is vertical with explosion-proof Transparent Parts.The hand of spiral of self-tapping screw and handling direction can be found out respectively with the hand of spiral of threaded ring and to load and unload direction vertical, run at equipment in the vibrations caused, be difficult to cause orthogonal threaded ring and self-tapping screw to loosen simultaneously, and self-tapping screw do not come off completely in situation, even if there be slight loosening, also can not cause annular gland come off, therefore threaded ring almost loosen space, so the tightness of flame-proof type explosion-proof form effectively can be strengthened.
Further, described rupture pressure disc thickness is between 0.08-0.4mm, and the too small meeting of thickness loses explosion-proof effect, and thickness is excessive, increases cost.
Further, described fire-protection ring is soft graphite ring.
The advantage that the utility model has and good effect are: owing to adopting technique scheme, explosion-proof form connects fastening, effectively can prevent explosion-proof loose or dislocation, and it is simple to have structure, easy to maintenance, the advantages such as processing cost is low.
Accompanying drawing explanation
Fig. 1 is circular flame-proof type explosion-proof form schematic diagram of the present utility model.
In figure:
1, form seat 2, fire-protection ring 3, explosion-proof Transparent Parts
4, sealing mat 5, annular gland 6, threaded ring
7, self-tapping screw 31, rupture pressure disc 32, tempered glass
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, exemplary embodiment of the present utility model is described.Described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with figure and embodiment, the technical solution of the utility model is described.
As shown in Figure 1, the utility model comprises form seat 1, fire-protection ring 2, explosion-proof Transparent Parts 3, sealing mat 4, annular gland 5, threaded ring 6 and self-tapping screw 7, wherein explosion-proof Transparent Parts 3 is made up of rupture pressure disc 31 and tempered glass 32, rupture pressure disc 31 is made up of PET, and rupture pressure disc is evenly coated in tempered glass 32 surface.Load fire-protection ring 2, explosion-proof Transparent Parts 3, sealing mat 4 in form seat 1 successively, make of threaded ring 6 afterwards and once fix, the hand of spiral of threaded ring and explosion-proof Transparent Parts plane parallel.Loosening to limit threaded ring, strengthening fastening effect, loading annular gland 5 outward at threaded ring, stop threaded ring to retreat.Annular gland 5 is connected with form seat 1 by self-tapping screw 7, wherein self-tapping screw attacks gland inside annular gland ring, shoot form seat inner, the hand of spiral of self-tapping screw and explosion-proof Transparent Parts place plane orthogonal, namely vertical with threaded ring hand of spiral, can find out that self-tapping screw handling direction and threaded ring load and unload direction also vertical.Therefore, cause annular gland to come off unless self-tapping screw comes off completely, otherwise threaded ring does not have enough space loose or dislocations on the direction of vertical explosion-proof Transparent Parts, the explosion-proof form tightness of effective enhancing, and the utility model structure is simple, easy to maintenance, processing cost is low.
The rupture pressure disc thickness of flame-proof type explosion-proof form is 0.2mm.
The fire-protection ring of flame-proof type explosion-proof form is soft graphite ring.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (3)
1. a circular flame-proof type explosion-proof form, comprise form seat, explosion-proof Transparent Parts, it is characterized in that: described explosion-proof Transparent Parts is made up of tempered glass and the rupture pressure disc be evenly coated on tempered glass, described rupture pressure disc is made up of PET, described explosion-proof form also comprises sealing mat, fire-protection ring, threaded ring, annular gland and self-tapping screw, described fire-protection ring is loaded successively in described form seat, explosion-proof Transparent Parts, sealing mat, fix with threaded ring afterwards, described threaded ring loads annular gland outward, described self-tapping screw shoots form seat inside annular gland ring, self-tapping screw hand of spiral is vertical with threaded ring hand of spiral.
2. circular flame-proof type explosion-proof form according to claim 1, is characterized in that: described rupture pressure disc thickness is 0.08-0.4mm.
3. circular flame-proof type explosion-proof form according to claim 1, is characterized in that: described fire-protection ring is soft graphite ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578679.8U CN204238799U (en) | 2014-10-08 | 2014-10-08 | A kind of circular flame-proof type explosion-proof form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420578679.8U CN204238799U (en) | 2014-10-08 | 2014-10-08 | A kind of circular flame-proof type explosion-proof form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204238799U true CN204238799U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420578679.8U Active CN204238799U (en) | 2014-10-08 | 2014-10-08 | A kind of circular flame-proof type explosion-proof form |
Country Status (1)
| Country | Link |
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| CN (1) | CN204238799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931673A (en) * | 2015-06-28 | 2015-09-23 | 哈尔滨东方报警设备开发有限公司 | Explosion-proof steel mesh respirator |
-
2014
- 2014-10-08 CN CN201420578679.8U patent/CN204238799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931673A (en) * | 2015-06-28 | 2015-09-23 | 哈尔滨东方报警设备开发有限公司 | Explosion-proof steel mesh respirator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |