CN204828826U - Explosion -proof pressure port - Google Patents
Explosion -proof pressure port Download PDFInfo
- Publication number
- CN204828826U CN204828826U CN201520556228.9U CN201520556228U CN204828826U CN 204828826 U CN204828826 U CN 204828826U CN 201520556228 U CN201520556228 U CN 201520556228U CN 204828826 U CN204828826 U CN 204828826U
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- Prior art keywords
- band steel
- explosion
- base
- pressure relief
- proof
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Abstract
The utility model discloses an explosion -proof pressure port, its characterized in that: include: pipy base (1), the opening of base (1) just to the opening by the protection device top just the internal diameter of base (1) with opening diameter by the protection device top is the same, the lower edge of base (1) be provided with be used for with base (1) is fixed by the horizontal chimb of first annular (2) at protection device top, going up along being provided with second annular horizontal chimb (3) of base (1), the outer edge of the second horizontal chimb of annular (3) evenly is provided with first band steel (4) of a plurality of bars, the upper surface of base (1) covers there are pressure release board (5), the top of pressure release board (5) is provided with top cap (6). The utility model provides a pair of explosion -proof pressure port can adjust in the elastic range of spring and let out detonation pressure power, and the restoring force of dependence self gravity and spring resets rapidly behind the pressure release.
Description
Technical field
The utility model relates to a kind of explosion-proof relief door, particularly relates to a kind of safety installations avoiding high-pressure installation to explode.
Background technique
It is unadjustable generally to there is explosion-proof pressure in current flameproof apparatus, and after pressure release, flameproof apparatus resets needs manual control, complex structure, is unfavorable for transport, installs, the problems such as debugging and maintenance.
Model utility content
Technical problem to be solved in the utility model is, provides a kind of explosion-proof pressure can regulate in the elastic range of spring, relies on the explosion-proof relief door that the restoring force of self gravitation and spring resets rapidly after pressure release; Further, the utility model provides a kind of spring position that the explosion-proof relief door offset can not occur; Further, the utility model provides a kind of fixed effect jail, and structure is simple, is beneficial to transport, installs, debugging and the explosion-proof relief door safeguarded.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
Explosion-proof relief door, it is characterized in that: comprising: the base of tubulose, the opening of described base is just to the opening at protected device top and the internal diameter of described base is identical with the opening diameter at described protected device top, the lower edge of described base is provided with the first annular horizontal chimb for described base being fixed on described protected device top, the upper edge of described base is provided with the second annular horizontal chimb, the outer of described second annular horizontal chimb is evenly provided with the first band steel of some bar shapeds, the upper surface of described base is coated with pressure relief plate, the top of described pressure relief plate is provided with top cover, described top cover, the end of pressure relief plate and the first band steel is successively through screw rod, described top cover and the first band steel are fixed on described screw rod, described pressure relief plate can move up and down on described screw rod, the center of described pressure relief plate and top cover is provided with for the through hole through guide rod, the center of described top cover is provided with the first cylindrical drum all sealed up and down, the middle part outer wall of described first cylindrical drum is laterally evenly provided with the second band steel of some long strips, the part cover that described first cylindrical drum is positioned at described second band steel lower surface has spring, the bottom of described spring is fixedly connected with the center of pressure relief plate, described guide rod is fixedly connected with behind the center of pressure relief plate through described first cylindrical drum successively.
The upper surface central position of described pressure relief plate is provided with for limiting the second cylindrical drum that is that described spring does not offset and equal opening up and down, large 40 ~ the 60mm of external diameter of more described first cylindrical drum of internal diameter of described second cylindrical drum, the height of described second cylindrical drum is less than 30mm.
Outer the 3rd band steel being transversely evenly provided with some strips of described pressure relief plate, the 4th band steel of some strips is laterally evenly provided with in the middle part of the outer wall of described base, described screw rod is successively through described second band steel, the 3rd band steel, the first band steel and the 4th band steel, and described second band steel, the first band steel and the 4th band steel are all fixed on described screw rod with nut.
Described second band steel, the 3rd band steel, the first band steel is identical with the number of the 4th band steel and position is corresponding, and the number of described screw rod is identical with the number of described second band steel.
The number of described second band steel, the 3rd band steel, the first band steel, the 4th band steel and screw rod is 3.
The material of described base, pressure relief plate and top cover is carbon steel.
Described explosion-proof relief door is connected with control box electricity, described control box is provided with hand push button and automatic button.
Described pressure relief plate is one block of plate.
Described screw rod between described second band steel and the 3rd band steel overlaps and has elastic component.
Described elastic element comprises spring.
The beneficial effects of the utility model are as follows:
1, gravity type explosion proof door function is had concurrently, namely when explosion hazard gases pressure flammable in silo (i.e. high-pressure installation) reaches working value (0.1KPa-0.2KPa), the pressure relief plate of explosion-proof relief door is backed down automatically, venting pressure, is resetted rapidly by the self gravitation of pressure relief plate and top cover and reactive spring force after completing.
2, the adjustable function of venting pressure, explosion-proof relief gate open overregulates device (i.e. spring), can realize release and compressing reaction force spring, change spring to pressure relief plate reaction force size, can realize venting pressure adjustable function between 0.1KPa-0.2KPa.
3, possessing from opening and closing function, explosion-proof relief door being equipped with from opening and closing electric controller, when explosion-proof relief door is opened by needs manually or automatically, by controlling, from opening and closing electric controller, the manual and automatic open function of explosion-proof relief door can be realized.
4, overall employing assembly type, is conducive to transport, installs, debugging and maintenance etc.
Installation steps of the present utility model are: at protected device top for opening diameter 1200mm hole, and explosion-proof relief door base inner edge aligns with for hole-opening, are fixed by explosion-proof relief door base by welding or stone bolt mode.
Workflow of the present utility model is:
1, after the Installation and Debugging of explosion-proof relief door; explosion-proof relief door enters working state; when protected device internal pressure reaches explosion-proof relief door breakout pressure; explosion-proof relief door pressure relief plate is backed down automatically carries out venting of dust explosion; after venting of dust explosion completes, pressure relief plate is resetted rapidly by self gravitation and reactive spring force.
2, explosion-proof relief door manual opening-closing: by hand push button on explosion-proof relief gate control case, controls explosion-proof relief door opens and closes electric controller certainly, realizes the manual opening-closing of pressure port.
3, explosion-proof relief door automatic on-off: by automatic button and control gear on explosion-proof relief gate control case, controls pressure port opens and closes electric controller certainly, can realize pressure port automatic on-off, namely carry out open-shut linkage function with other device.
A kind of explosion-proof relief door that the utility model provides, can regulate venting pressure, rely on the restoring force of self gravitation and spring to reset rapidly after pressure release in the elastic range of spring, and structure is simple, is beneficial to transport, installs, debugging and maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the structural representation of pressure relief plate in the utility model;
The structural representation of base in Fig. 4 the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Fig. 1 ~ 4, explosion-proof relief door, it is characterized in that: comprising: the base 1 of tubulose, the opening of described base 1 is just to the opening at protected device top and the internal diameter of described base 1 is identical with the opening diameter at described protected device top, the lower edge of described base 1 is provided with the first annular horizontal chimb 2 for described base 1 being fixed on described protected device top, the upper edge of described base 1 is provided with the second annular horizontal chimb 3, the outer of described second annular horizontal chimb 3 is evenly provided with the first band steel 4 of some bar shapeds, the upper surface of described base 1 is coated with pressure relief plate 5, the top of described pressure relief plate 5 is provided with top cover 6, described top cover 6, the end of pressure relief plate 5 and the first band steel 4 is successively through screw rod 7, described top cover 6 and the first band steel 4 are fixed on described screw rod 7, described pressure relief plate 5 can move up and down on described screw rod 7, the center of described pressure relief plate 5 and top cover 6 is provided with for the through hole through guide rod 8, the center of described top cover 6 is provided with the first cylindrical drum 11 all sealed up and down, the middle part outer wall of described first cylindrical drum 11 is laterally evenly provided with the second band steel 10 of some long strips, the part cover that described first cylindrical drum 11 is positioned at described second band steel 10 lower surface has spring 9, the bottom of described spring 9 is fixedly connected with the center of pressure relief plate 5, described guide rod 8 is fixedly connected with behind the center of pressure relief plate 5 through described first cylindrical drum 11 successively.
The upper surface central position of described pressure relief plate 5 is provided with for limiting the second cylindrical drum 12 that is that described spring 9 does not offset and equal opening up and down, large 40 ~ the 60mm of external diameter of more described first cylindrical drum 11 of internal diameter of described second cylindrical drum 12, the height of described second cylindrical drum 12 is less than 30mm.
Outer the 3rd band steel 13 being transversely evenly provided with some strips of described pressure relief plate 5, the 4th band steel 14 of some strips is laterally evenly provided with in the middle part of the outer wall of described base 1, described screw rod 7 is successively through described second band steel 10, the 3rd band steel 13, first band steel 4 and the 4th band steel 14, and described second band steel 10, first band steel 4 and the 4th band steel 14 are all fixed on described screw rod 7 with nut.
Described second band steel 10, the 3rd band steel 13, first band steel 4 is identical with the number of the 4th band steel 14 and position is corresponding, and the number of described screw rod 7 is identical with the number of described second band steel 10.
The number of described second band steel 10, the 3rd band steel 13, first band steel 4, the 4th band steel 14 and screw rod 7 is 3.
The material of described base 1, pressure relief plate 5 and top cover 6 is carbon steel.
Described explosion-proof relief door is connected with control box electricity, described control box is provided with hand push button and automatic button.
Described pressure relief plate 5 is one block of plate.
Described screw rod 7 between described second band steel 10 and the 3rd band steel 13 overlaps and has elastic component.
Described elastic element comprises spring.
Technical parameter of the present utility model: explosion-proof relief door is circular, explosion-proof relief door diameter of bore is 1.2 meters, then the effective pressure release area of explosion-proof relief door is 1.13 ㎡, explosion-proof relief door venting pressure is 1KPa, then being converted into kilogram pressure is: 1000KPa=10KG/1cm2,1KPa=113KG/1.13 ㎡, then guide rod 8 is chosen as and jack-up can be not less than 2 × 113KG=226KG weight.
Top cover 6 Weight computation of explosion-proof relief door is as follows: the density of iron is equivalent to 7900KG/m3, if top cover 6 thickness is 0.8cm, top cover 6 diameter is 1.3m, then top cover 6 volume is: 0.0106m3, and according to quality=volume × density, then the weight of top cover 6 is 84KG.Screw rod 7 above top cover 6, nut, the first cylindrical drum 11 and spring 9 weight are 5KG.Finally show that the reaction force requiring spring 9 when venting pressure is 1KPa is 113-(84+5)=24KG.If it is adjustable at 1.0KPa, 1.5KPa, 2.0KPa tri-points that explosion-proof relief door makes explosion-proof pressure.The reaction force of spring 9 is respectively: during 1.0KPa, 24KG; During 1.5KPa, 80.5KG; During 2.0KPa, 137KG.
Spring 9 effective elastic constants formula: K=Gd2 × d2/8D3n;
The trimming modulus of G---spring material in formula, (wherein steel is 8 × 10000MPa); D---spring diameter; D---wire diameter; N---active spring coils number.We select spring materials to be rigidity, wherein: D=270mm; D=12mm; N=5; Then the elasticity coefficient of spring is: K=8 × 10000 × 12 × 12 × 12 × 12/8 × 270 × 270 × 270 × 5; K=2MPa.mm.
If the stressed displacement X of spring 9 is 200mm, then spring bears pressure and is: F=KX; F=2 × 200=400MPa.mm2; Being converted into weight is then: 400 × (10KG/100mm2) × mm2=40KG;
When pressure is 1.0KPa, spring pressure is 24KG, then displacement is: 48mm;
When pressure is 1.5KPa, spring pressure is 80.5KG, then displacement is: 161mm;
When pressure is 2.0KPa, spring pressure is 137KG, then displacement is: 274mm;
Consider the reaction force of 3 springs around in addition: when displacement 200, middle springs pressure is 40KG, around 3 little spring total pressures calculate according to 60KG: then the total reasoning of screw rod 7 exports and is at least: 40KG+60KG+89Kg=189KG.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. explosion-proof relief door, it is characterized in that: comprising: the base (1) of tubulose, the opening of described base (1) is just to the opening at protected device top and the internal diameter of described base (1) is identical with the opening diameter at described protected device top, the lower edge of described base (1) is provided with the first annular horizontal chimb (2) for described base (1) being fixed on described protected device top, the upper edge of described base (1) is provided with the second annular horizontal chimb (3), the outer of described second annular horizontal chimb (3) is evenly provided with first band steel (4) of some bar shapeds, the upper surface of described base (1) is coated with pressure relief plate (5), the top of described pressure relief plate (5) is provided with top cover (6), described top cover (6), the end of pressure relief plate (5) and the first band steel (4) is successively through screw rod (7), described top cover (6) and the first band steel (4) are fixed on described screw rod (7), described pressure relief plate (5) can move up and down on described screw rod (7), the center of described pressure relief plate (5) and top cover (6) is provided with for the through hole through guide rod (8), the center of described top cover (6) is provided with the first cylindrical drum (11) all sealed up and down, the middle part outer wall of described first cylindrical drum (11) is laterally evenly provided with second band steel (10) of some long strips, the part cover that described first cylindrical drum (11) is positioned at described second band steel (10) lower surface has spring (9), the bottom of described spring (9) is fixedly connected with the center of pressure relief plate (5), described guide rod (8) is fixedly connected with behind the center of pressure relief plate (5) through described first cylindrical drum (11) successively.
2. explosion-proof relief door according to claim 1, it is characterized in that: the upper surface central position of described pressure relief plate (5) is provided with for limiting the second cylindrical drum (12) that is that described spring (9) does not offset and equal opening up and down, large 40 ~ the 60mm of external diameter of more described first cylindrical drum (11) of internal diameter of described second cylindrical drum (12), the height of described second cylindrical drum (12) is less than 30mm.
3. explosion-proof relief door according to claim 1, it is characterized in that: outer the 3rd band steel (13) being transversely evenly provided with some strips of described pressure relief plate (5), the 4th band steel (14) of some strips is laterally evenly provided with in the middle part of the outer wall of described base (1), described screw rod (7) is successively through described second band steel (10), the 3rd band steel (13), the first band steel (4) and the 4th band steel (14), and described second band steel (10), the first band steel (4) and the 4th band steel (14) are all fixed on described screw rod (7) with nut.
4. explosion-proof relief door according to claim 3, it is characterized in that: described second band steel (10), the 3rd band steel (13), the first band steel (4) is identical with the number of the 4th band steel (14) and position is corresponding, the number of described screw rod (7) is identical with the number of described second band steel (10).
5. the explosion-proof relief door according to claim 3 or 4, is characterized in that: the number of described second band steel (10), the 3rd band steel (13), the first band steel (4), the 4th band steel (14) and screw rod (7) is 3.
6. explosion-proof relief door according to claim 1, is characterized in that: the material of described base (1), pressure relief plate (5) and top cover (6) is carbon steel.
7. explosion-proof relief door according to claim 1, is characterized in that: described explosion-proof relief door is connected with control box electricity, described control box is provided with hand push button and automatic button.
8. explosion-proof relief door according to claim 1, is characterized in that: described pressure relief plate (5) is one block of plate.
9. explosion-proof relief door according to claim 3, is characterized in that: the upper cover of the described screw rod (7) between described second band steel (10) and the 3rd band steel (13) has elastic component.
10. explosion-proof relief door according to claim 9, is characterized in that: described elastic element comprises spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556228.9U CN204828826U (en) | 2015-07-28 | 2015-07-28 | Explosion -proof pressure port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556228.9U CN204828826U (en) | 2015-07-28 | 2015-07-28 | Explosion -proof pressure port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828826U true CN204828826U (en) | 2015-12-02 |
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ID=54686429
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520556228.9U Expired - Fee Related CN204828826U (en) | 2015-07-28 | 2015-07-28 | Explosion -proof pressure port |
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| Country | Link |
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| CN (1) | CN204828826U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859994A (en) * | 2017-12-22 | 2018-03-30 | 南通万达锅炉有限公司 | CFBB explosion protection system |
| CN109208224A (en) * | 2018-10-27 | 2019-01-15 | 立信门富士纺织机械（中山）有限公司 | Applied to the baking oven explosion-protection equipment on forming machine |
| CN114182058A (en) * | 2021-12-14 | 2022-03-15 | 无锡翔龙环球科技股份有限公司 | Protective explosion-proof device for converter flue gas waste heat boiler |
-
2015
- 2015-07-28 CN CN201520556228.9U patent/CN204828826U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859994A (en) * | 2017-12-22 | 2018-03-30 | 南通万达锅炉有限公司 | CFBB explosion protection system |
| CN107859994B (en) * | 2017-12-22 | 2023-11-24 | 南通万达能源动力科技有限公司 | Explosion-proof system of circulating fluidized bed boiler |
| CN109208224A (en) * | 2018-10-27 | 2019-01-15 | 立信门富士纺织机械（中山）有限公司 | Applied to the baking oven explosion-protection equipment on forming machine |
| CN114182058A (en) * | 2021-12-14 | 2022-03-15 | 无锡翔龙环球科技股份有限公司 | Protective explosion-proof device for converter flue gas waste heat boiler |
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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: 20151202 Termination date: 20190728 |