CN110925789B - Gravity explosion-proof door for pulverized coal bunker - Google Patents
Gravity explosion-proof door for pulverized coal bunker Download PDFInfo
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- CN110925789B CN110925789B CN201911277202.XA CN201911277202A CN110925789B CN 110925789 B CN110925789 B CN 110925789B CN 201911277202 A CN201911277202 A CN 201911277202A CN 110925789 B CN110925789 B CN 110925789B
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- ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M7/00—Doors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
- F23J13/08—Doors or covers specially adapted for smoke-boxes, flues, or chimneys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasket Seals (AREA)
Abstract
The invention provides a gravity explosion-proof door for a pulverized coal bunker. Gravity explosion vent for buggy storehouse, including the afterbody flue, the play smoke outlet department movable mounting of afterbody flue has the circular shape explosion vent body, the cover is equipped with the annular sealing pad that can plug up explosion vent body and afterbody flue inner wall gap on the outer lane of explosion vent body, the outer lane of explosion vent body and the top that is located the annular sealing pad are overlapped in proper order and are equipped with metal backing ring, elastic ring shape working of plastics and metal clamping ring, and metal backing ring, elastic ring shape working of plastics and metal clamping ring homoenergetic plug up the gap between explosion vent body and the afterbody flue inner wall. The gravity explosion-proof door has better sealing performance by combining the annular sealing gasket, the metal backing ring, the elastic annular plastic part and the metal pressing ring.
Description
Technical Field
The invention relates to the technical field of gravity explosion vents, in particular to a gravity explosion vent for a pulverized coal bunker.
Background
The gas-fired boiler comprises a gas-fired water boiler, a gas-fired hot water boiler, a gas-fired steam boiler and the like, wherein the gas-fired hot water boiler is also called a gas-fired heating boiler and a gas-fired bathing boiler, the gas-fired boiler refers to a boiler with fuel gas as the name implies, and the gas-fired boiler is most economical compared with an oil-fired boiler and an electric boiler, so that most people select the gas-fired boiler as boiler equipment for steam, heating and bathing.
The gas-fired boiler comprises a KS-Q gas water boiler, a CLHS (CWNS) gas-fired hot water boiler, an LHS (WNS) gas-fired steam boiler and the like, wherein the gas-fired hot water boiler comprises a gas-fired heating boiler and a gas-fired bath boiler.
The boiler defined by special equipment safety supervision regulations refers to equipment which utilizes various fuels, electricity or other energy sources to heat the contained liquid to certain parameters and outputs heat energy to the outside. A pressure-bearing steam boiler having a volume of 30L or more; a pressure-bearing hot water boiler having an outlet water pressure of 0.1MPa or more (gauge pressure) and a rated power of 0.1Mw or more; an organic heat carrier boiler.
Under the background of national advocation of energy conservation and emission reduction, the gas-fired boiler has the advantages of clean combustion, no pollution and the like, so that the gas-fired boiler is rapidly developed in recent years, and the market share is rapidly increased. The explosion-proof door is generally arranged on a hearth or a tail flue of the gas-fired boiler, so that the damage of detonation to a body pressure piece is prevented or reduced. The explosion vent mainly has the following problems in the design at present:
the explosion vent commonly used at present is a gravity type explosion vent. Gravity type explosion vent, as the name suggests, rely on the gravity and the stove internal pressure of explosion vent lid to keep balance, when stove internal pressure is greater than explosion vent lid pressure, can back-open the lid and carry out the pressure release, the lid resets again by self gravity after the pressure release is accomplished. The explosion door has high requirement on sealing performance, and smoke leakage phenomenon often occurs in use.
Therefore, the gravity explosion-proof door for the pulverized coal bunker needs to be designed.
Disclosure of Invention
The invention provides a gravity explosion-proof door for a pulverized coal bunker, which solves the problem of poor sealing performance of the existing gravity explosion-proof door.
In order to solve the technical problem, the gravity explosion vent for the pulverized coal bunker comprises a tail flue, wherein a circular explosion vent body is movably mounted at a smoke outlet of the tail flue, an annular sealing gasket capable of blocking a gap between the explosion vent body and the inner wall of the tail flue is sleeved on an outer ring of the explosion vent body, a metal backing ring, an elastic annular plastic piece and a metal pressing ring are sequentially sleeved on the outer ring of the explosion vent body and positioned above the annular sealing gasket, and the metal backing ring, the elastic annular plastic piece and the metal pressing ring can block a gap between the explosion vent body and the inner wall of the tail flue.
Preferably, annular S-shaped grooves are formed in the outer rings of the metal compression ring and the metal backing ring, annular S-shaped plastic belts are filled in the annular S-shaped grooves, and one side, away from the bottom of the annular S-shaped grooves, of the annular S-shaped plastic belts is located outside the annular S-shaped grooves.
Preferably, the elastic annular plastic part is H-shaped, and the metal pressing ring and the metal backing ring are both provided with bolts matched with the grooves in the elastic annular plastic part.
Preferably, the both sides of elasticity annular working of plastics all run through and are provided with the telescopic link, and the equal fixed mounting in one side that the elasticity annular working of plastics was kept away from to the telescopic link has the plastics ring that can plug up the gap between explosion vent body and the afterbody flue inner wall, two the equal fixed mounting in one side that is close to the metal backing ring on the telescopic link has the sloping, and the inclined plane of two sloping is relative, two the activity is provided with the ball between the inclined plane of sloping, the fifth of ball is located the outside of elasticity annular working of plastics, the ball contacts with the top of metal backing ring.
Preferably, the bottom of metal backing ring runs through and is provided with the ejector pin, the bottom fixed mounting of ejector pin has the pressure receiving plate, the ejector pin runs through the annular working of plastics of elasticity, fixed mounting has the spring between pressure receiving plate and the metal backing ring, the spring housing is established on the ejector pin.
The working principle is as follows: when the gravity explosion-proof door is used, the annular sealing gasket, the metal backing ring, the elastic annular plastic part and the metal pressure ring are sequentially sleeved outside the explosion-proof door body, the explosion-proof door body is closed, and the sealing combination formed by the annular sealing gasket, the metal backing ring, the elastic annular plastic part and the metal pressure ring can well ensure the sealing performance of the gravity explosion-proof door
Compared with the related art, the gravity explosion-proof door for the pulverized coal bunker provided by the invention has the following beneficial effects:
1. the gravity explosion-proof door is simple in structure and convenient to use, the sealing performance of the gravity explosion-proof door is better in a mode of combining the annular sealing gasket, the metal backing ring, the elastic annular plastic part and the metal pressing ring, the friction force of the metal pressing ring and the metal backing ring and the explosion-proof door body can be increased and the sealing performance can be better increased by filling the annular S-shaped plastic belt on the metal backing ring and the annular S-shaped groove on the metal pressing ring, and the metal backing ring, the elastic annular plastic part and the metal pressing ring are combined into a whole by arranging the elastic annular plastic part into an H shape and arranging the bolt on the metal backing ring and the metal pressing ring, so that the sealing performance of the gravity explosion-proof door can be better improved.
2. Through setting up the ball, when the metal backing ring received pressure, the ball can be toward the inside motion of elastic ring shape working of plastics, just so can drive two telescopic links toward the motion to make the plastic ring also toward the outside motion, can enough guarantee the leakproofness like this, can make the position of elastic ring shape working of plastics more fixed again, the emergence displacement that can not be so easily.
Drawings
FIG. 1 is a schematic structural view of the explosion vent body of the present invention when closed;
FIG. 2 is a schematic view of a connection structure of a metal press ring, an elastic annular plastic member and a metal backing ring according to the present invention;
FIG. 3 is a schematic structural diagram of a pressed plate according to the present invention.
Reference numbers in the figures: 1. a tail flue; 2. a plastic ring; 3. an explosion vent body; 4. a metal compression ring; 5. an elastic annular plastic member; 6. a metal backing ring; 7. an annular seal; 8. a ball bearing; 9. a sloping block; 10. a telescopic rod; 11. an annular S-shaped plastic tape; 12. a pressure receiving plate; 13. a spring; 14, a mandril.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, cannot be construed as limiting the present invention.
The invention is further described with reference to the following figures and embodiments.
Please refer to fig. 1 and fig. 2, wherein fig. 1 is a schematic structural view of the explosion vent body according to the present invention when closed; FIG. 2 is a schematic view of the connection structure of the metal press ring, the elastic annular plastic part and the metal backing ring according to the present invention.
Example one
Referring to fig. 1-3, the invention provides a gravity explosion vent for a pulverized coal bunker, which comprises a tail flue 1, wherein a circular explosion vent body 3 is movably installed at a smoke outlet of the tail flue 1, an annular sealing gasket 7 capable of blocking a gap between the explosion vent body 3 and the inner wall of the tail flue 1 is sleeved on the outer ring of the explosion vent body 3, a metal backing ring 6, an elastic annular plastic piece 5 and a metal pressing ring 4 are sequentially sleeved on the outer ring of the explosion vent body 3 and positioned above the annular sealing gasket 7, and the metal backing ring 6, the elastic annular plastic piece 5 and the metal pressing ring 4 can block a gap between the explosion vent body 3 and the inner wall of the tail flue 1.
In this embodiment, the annular S-shaped grooves are formed in the outer rings of the metal pressure ring 4 and the metal backing ring 6, the S-shaped plastic belts are filled in the S-shaped grooves, and one side of each S-shaped plastic belt, which is far away from the bottom of each S-shaped groove, is located outside each S-shaped groove.
Elastic annular plastic part 5 is H-shaped, and metal pressing ring 4 and metal backing ring 6 are both provided with bolts matched with the grooves on elastic annular plastic part 5.
Through at annular seal pad 7, metal backing ring 6, the mode of elasticity annular working of plastics 5 and the combination of metal clamping ring 4 makes this kind of gravity explosion vent leakproofness better, it has annular S-shaped plastic strip 11 to fill on annular S-shaped slot on metal backing ring 6 and metal clamping ring 4, can increase metal clamping ring 4 and the metal backing ring 6 frictional force on the explosion vent body 3 again, increase leakproofness that can be fine, through setting up elasticity annular working of plastics 5 into H shape and set up the bolt on metal backing ring 6 and metal clamping ring 4, make metal backing ring 6, elasticity annular working of plastics 5 and the combination of metal clamping ring 4 are in one, the leakproofness of improvement gravity explosion vent that can be fine.
Example 2
Referring to fig. 1-3, the present embodiment is further optimized on the basis of embodiment 1, specifically, a circular explosion vent body 3 is movably installed at a smoke outlet of the tail flue 1, an annular sealing gasket 7 capable of blocking a gap between the explosion vent body 3 and an inner wall of the tail flue 1 is sleeved on an outer ring of the explosion vent body 3, a metal backing ring 6, an elastic annular plastic part 5 and a metal pressing ring 4 are sequentially sleeved on the outer ring of the explosion vent body 3 and above the annular sealing gasket 7, and the metal backing ring 6, the elastic annular plastic part 5 and the metal pressing ring 4 can block a gap between the explosion vent body 3 and the inner wall of the tail flue 1.
In this embodiment, the both sides of elasticity annular working of plastics 5 all run through and are provided with telescopic link 10, and the equal fixed mounting in one side that elasticity annular working of plastics 5 was kept away from to telescopic link 10 has the plastic ring 2 that can plug up the gap between explosion vent body 3 and afterbody flue 1 inner wall, the equal fixed mounting in one side that is close to metal backing ring 6 on two telescopic links 10 has sloping block 9, and the inclined plane of two sloping blocks 9 is relative, the activity is provided with ball 8 between the inclined plane of two sloping blocks 9, ball 8's fifth is located the outside of elasticity working of plastics, ball 8 contacts with the top of metal backing ring 6.
Through setting up ball 8, when metal backing ring 6 received pressure, ball 8 can be toward 5 internal motion of elastic ring shape working of plastics, just so can drive two telescopic links 10 toward the motion to make plastic ring 2 also toward the outside motion, can enough guarantee the leakproofness like this, can make the position of elastic ring shape working of plastics 5 more fixed again, the emergence displacement that can not be so easily.
During the use, sheathe ring packing in proper order and seal up 7, metal backing ring 6, elasticity annular working of plastics 5 and metal clamping ring 4 outside explosion vent body 3, close explosion vent body 3, the sealed combination that ring packing 7, metal backing ring 6, elasticity annular working of plastics 5 and metal clamping ring formed can be fine guarantees the leakproofness of this kind of gravity explosion vent.
Example 3
Referring to fig. 1-3, the present embodiment is further optimized based on embodiment 1, specifically, a top rod 14 is disposed at the bottom of the metal backing ring 6 in a penetrating manner, a pressure receiving plate 12 is fixedly mounted at the bottom of the top rod 14, the top rod 14 penetrates through the elastic annular plastic part 5, a spring 13 is fixedly mounted between the pressure receiving plate 12 and the metal backing ring 6, and the spring 13 is sleeved on the top rod 14.
When the explosion-proof door is used, the pressed plate 12 pushes the metal pressure ring 4 upwards when receiving pressure, so that the situation that the explosion-proof door cannot be opened due to too high air tightness is avoided.
Claims (3)
1. The utility model provides a gravity explosion vent for buggy storehouse, includes afterbody flue (1), its characterized in that: the utility model discloses a explosion door, including explosion door body (3), ring packing pad (7) that the outer lane of explosion door body (3) is equipped with and to plug up explosion door body (3) and afterbody flue (1) inner wall gap, the outer lane of explosion door body (3) just is located the top of ring packing pad (7) and overlaps in proper order and is equipped with metal backing ring (6), elasticity annular working of plastics (5) and metal clamping ring (4), and metal backing ring (6), elasticity annular working of plastics (5) and metal clamping ring (4) homoenergetic plug up the gap between explosion door body (3) and afterbody flue (1) inner wall, annular S-shaped slot has all been seted up on the outer lane of metal backing ring (6) in metal backing ring (4) and the inside homoenergetic of annular S-shaped slot has annular S-shaped plastic tape (11), annular S-shaped plastic tape (11) are kept away from one side of annular S-shaped slot bottom and are located annular S-shaped slot The elastic annular plastic part (5) is H-shaped, and the metal pressing ring (4) and the metal backing ring (6) are both provided with bolts matched with the upper groove of the elastic annular plastic part (5).
2. The gravity explosion vent for the pulverized coal bunker as claimed in claim 1, wherein telescopic rods (10) penetrate through two sides of the elastic annular plastic part (5), one side, far away from the elastic annular plastic part (5), of each telescopic rod (10) is fixedly provided with a plastic ring (2) capable of blocking a gap between the explosion vent body (3) and the inner wall of the tail flue (1), one side, close to the metal backing ring (6), of each telescopic rod (10) is fixedly provided with an inclined block (9), inclined planes of the two inclined blocks (9) are opposite, balls (8) are movably arranged between the inclined planes of the two inclined blocks (9), one fifth of the balls (8) is located outside the elastic plastic part, and the balls (8) are in contact with the top of the metal backing ring (6).
3. The gravity explosion vent for the pulverized coal bunker of claim 1, wherein a top rod (14) penetrates through the bottom of the metal backing ring (6), a pressure receiving plate (12) is fixedly mounted at the bottom of the top rod (14), the top rod (14) penetrates through the elastic annular plastic part (5), a spring (13) is fixedly mounted between the pressure receiving plate (12) and the metal backing ring (6), and the top rod (14) is sleeved with the spring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277202.XA CN110925789B (en) | 2019-12-12 | 2019-12-12 | Gravity explosion-proof door for pulverized coal bunker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911277202.XA CN110925789B (en) | 2019-12-12 | 2019-12-12 | Gravity explosion-proof door for pulverized coal bunker |
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| Publication Number | Publication Date |
|---|---|
| CN110925789A CN110925789A (en) | 2020-03-27 |
| CN110925789B true CN110925789B (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911277202.XA Active CN110925789B (en) | 2019-12-12 | 2019-12-12 | Gravity explosion-proof door for pulverized coal bunker |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201317166A (en) * | 2011-10-20 | 2013-05-01 | Her Chian Acrylic Co Ltd | Lid of seal container |
| CN206754361U (en) * | 2017-05-02 | 2017-12-15 | 北京中荣慧谷新能源科技有限公司 | A kind of explosion vents seal device |
| CN208735660U (en) * | 2018-07-10 | 2019-04-12 | 四川竹锅锅炉有限公司 | A kind of explosion-proof check door of horizontal boiler |
| CN209011339U (en) * | 2018-09-23 | 2019-06-21 | 刘睿 | A kind of wall insulated board structure with air conditioner mounting bracket |
| CN211450360U (en) * | 2019-12-19 | 2020-09-08 | 张腾 | Explosion-proof device for vacuum heat-insulating container |
-
2019
- 2019-12-12 CN CN201911277202.XA patent/CN110925789B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201317166A (en) * | 2011-10-20 | 2013-05-01 | Her Chian Acrylic Co Ltd | Lid of seal container |
| CN206754361U (en) * | 2017-05-02 | 2017-12-15 | 北京中荣慧谷新能源科技有限公司 | A kind of explosion vents seal device |
| CN208735660U (en) * | 2018-07-10 | 2019-04-12 | 四川竹锅锅炉有限公司 | A kind of explosion-proof check door of horizontal boiler |
| CN209011339U (en) * | 2018-09-23 | 2019-06-21 | 刘睿 | A kind of wall insulated board structure with air conditioner mounting bracket |
| CN211450360U (en) * | 2019-12-19 | 2020-09-08 | 张腾 | Explosion-proof device for vacuum heat-insulating container |
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| CN110925789A (en) | 2020-03-27 |
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