CN220667693U - Smoke backflow prevention device - Google Patents
Smoke backflow prevention device Download PDFInfo
- Publication number
- CN220667693U CN220667693U CN202322430081.6U CN202322430081U CN220667693U CN 220667693 U CN220667693 U CN 220667693U CN 202322430081 U CN202322430081 U CN 202322430081U CN 220667693 U CN220667693 U CN 220667693U
- Authority
- CN
- China
- Prior art keywords
- smoke
- fixedly connected
- prevention device
- backflow prevention
- check valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000779 smoke Substances 0.000 title claims abstract description 85
- 230000002265 prevention Effects 0.000 title claims description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000010992 reflux Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 description 4
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a smoke backflow preventing device, which comprises a lower barrel of the smoke backflow preventing device, wherein the lower surface of the lower barrel of the smoke backflow preventing device is fixedly connected with a bottom plate, the inner surface of the bottom plate is fixedly connected with a smoke exhaust pipe, the upper surface of the smoke exhaust pipe is fixedly connected with a wafer-type check valve, the inner surface of the wafer-type check valve is rotationally connected with a wafer-type check valve cover plate, the upper surface of the wafer-type check valve cover plate is fixedly connected with a circular ring, the upper barrel of the smoke backflow preventing device is fixedly connected with a drain pipe, and a drain ball valve is arranged in the drain pipe.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to a smoke backflow prevention device.
Background
The gas engine is a common mechanical device in daily mechanical engineering, and the gas engine converts chemical energy into mechanical energy and heat energy by burning fuel to be supplied to other devices, and redundant smoke is discharged through a smoke outlet of the supercharger after burning.
However, when a plurality of gas units share one smoke exhaust main pipe, a certain unit is stopped, and other units normally operate, smoke flows back into the smoke exhaust pipeline of the unit, the smoke is cooled to form condensed water, and the condensed water can flow back into the supercharger and the cylinder of the engine, so that a series of problems such as rust and damage of the units are caused.
Disclosure of Invention
The utility model aims to at least solve one of the technical problems in the prior art, and provides a smoke backflow prevention device, and meanwhile, a smoke exhaust pipeline cannot be designed into a U-shaped pipeline for storing condensed water due to the influence of exhaust back pressure, and only a valve with condensed water discharging and an upper and lower body passing device can be designed.
The utility model also provides a lower cylinder of the smoke backflow prevention device, the lower surface of the lower cylinder of the smoke backflow prevention device is fixedly connected with a bottom plate, the inner surface of the bottom plate is fixedly connected with a smoke exhaust pipe, the upper surface of the smoke exhaust pipe is fixedly connected with a wafer-type check valve in a butt-clamping manner, the inner surface of the wafer-type check valve in the butt-clamping manner is rotationally connected with a wafer-type check valve cover plate in the butt-clamping manner, the upper surface of the wafer-type check valve cover plate in the butt-clamping manner is fixedly connected with a circular ring, the outer surface of the lower cylinder of the smoke backflow prevention device is fixedly connected with an upper cylinder connecting flange, the inner surface of the lower cylinder of the smoke backflow prevention device is fixedly connected with a limit nail, and the inside of the wafer-type check valve in the butt-clamping manner is provided with a water discharging hole;
the upper cylinder of the smoke backflow prevention device comprises a high-temperature gasket, an upper flange, a reducing steel pipe, a lower flange, a connecting bolt and a fixing nut, wherein the inner surface of the lower flange is in threaded connection with the connecting bolt, and the outer surface of the connecting bolt is in threaded connection with the fixing nut;
the outer surface of the lower cylinder of the smoke backflow prevention device is fixedly connected with a pull rope guide pipe, the inner surface of the pull rope guide pipe is provided with a check valve steel wire pull rope, the outer surface fixedly connected with stay cord staple of a smoke reflux prevention device lower section of thick bamboo, the lower surface fixedly connected with drain pipe of bottom plate, the inside of drain pipe is provided with the ball valve that drains.
According to the smoke backflow prevention device, the number of the stay cord fixing nails is two and the stay cord fixing nails are distributed up and down and are used for fastening one end of the check valve steel wire stay cord on the stay cord fixing nails.
According to the smoke backflow preventing device, the lower cylinder connecting flange is fixedly connected to the side surface of the smoke exhaust pipe, and one end of the smoke exhaust pipe extends to the inner part of the lower cylinder of the smoke backflow preventing device and is used for being connected with a smoke outlet of the supercharger.
According to the smoke-preventing reflux device, one end of the drain pipe extends to the inside of the lower cylinder of the smoke-preventing reflux device, and the drain pipe is communicated with the lower cylinder of the smoke-preventing reflux device and is used for discharging condensed water.
According to the smoke backflow preventing device, one end of the check valve steel wire pull rope is fixedly connected with the circular ring, and one end, far away from the circular ring, of the check valve steel wire pull rope is fixedly connected with the pull rope fixing nail.
According to the smoke backflow preventing device, the side surface of the reducing steel pipe is fixedly connected with the upper flanges, and the number of the upper flanges is multiple and distributed in an annular array.
According to the smoke backflow preventing device, the outer surface of the connecting bolt is in threaded connection with the upper cylinder connecting flange, and the fixing nut is located below the upper cylinder connecting flange and used for fixing the upper cylinder of the smoke backflow preventing device and the lower cylinder of the smoke backflow preventing device.
According to the smoke backflow preventing device, the upper surface of the high-temperature gasket is in contact with the lower flange, and the lower surface of the high-temperature gasket is in contact with the upper cylinder connecting flange.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is a block diagram of an overall structure of an apparatus for preventing smoke backflow in accordance with the present utility model;
FIG. 2 is a schematic view of a top canister of an anti-smoke reflux device according to the present utility model;
FIG. 3 is a schematic view of a lower cylinder of an anti-smoke reflux device of the utility model;
fig. 4 is an enlarged schematic view of the structure a in fig. 1.
Legend description:
1. a lower cylinder of the smoke reflux preventing device; 2. the upper cylinder of the smoke reflux preventing device; 3. a high temperature gasket; 4. an upper flange; 5. reducing steel pipes; 6. a lower flange; 7. a circular ring; 8. a limit nail; 9. a pull cord catheter; 10. check valve steel wire rope; 11. a pull rope fixing nail; 12. a water discharge ball valve; 13. a wafer-type check valve; 14. an upper cylinder connecting flange; 15. a connecting bolt; 16. a fixing nut; 17. a wafer-type check valve cover plate is clamped; 18. a drain pipe; 19. a bottom plate; 20. a lower cylinder connecting flange; 21. a smoke exhaust pipe; 22. and a water discharging hole.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
Referring to fig. 1-4, an embodiment of the utility model provides a smoke backflow prevention device, which comprises a lower barrel 1 of the smoke backflow prevention device, wherein a bottom plate 19 is fixedly connected to the lower surface of the lower barrel 1 of the smoke backflow prevention device, a smoke exhaust pipe 21 is fixedly connected to the inner surface of the bottom plate 19, a wafer-type check valve 13 is fixedly connected to the upper surface of the smoke exhaust pipe 21, a wafer-type check valve cover plate 17 is rotatably connected to the inner surface of the wafer-type check valve 13, a circular ring 7 is fixedly connected to the upper surface of the wafer-type check valve cover plate 17, an upper barrel connecting flange 14 is fixedly connected to the outer surface of the lower barrel 1 of the smoke backflow prevention device, a limit nail 8 is fixedly connected to the inner surface of the lower barrel 1 of the smoke backflow prevention device, a water drain hole 22 is formed in the inner part of the wafer-type check valve 13, a lower barrel connecting flange 20 is fixedly connected to the side surface of the smoke exhaust pipe 21, and one end of the smoke exhaust pipe 21 extends to the inner part of the lower barrel 1 of the smoke backflow prevention device.
The upper cylinder 2 of the smoke backflow prevention device comprises a high-temperature gasket 3, an upper flange 4, a reducing steel pipe 5, a lower flange 6, connecting bolts 15 and fixing nuts 16, wherein the inner surface of the lower flange 6 is in threaded connection with the connecting bolts 15, the outer surfaces of the connecting bolts 15 are in threaded connection with the fixing nuts 16, the side surfaces of the reducing steel pipe 5 are fixedly connected with the upper flange 4, the number of the upper flanges 4 is multiple and distributed in an annular array, the outer surfaces of the connecting bolts 15 are in threaded connection with the upper cylinder connecting flange 14, the fixing nuts 16 are located below the upper cylinder connecting flange 14, the upper surface of the high-temperature gasket 3 is in contact with the lower flange 6, and the lower surface of the high-temperature gasket 3 is in contact with the upper cylinder connecting flange 14.
The outer surface fixedly connected with stay cord pipe 9 of a lower section of thick bamboo 1 of smoke protection reflux device, the internal surface of stay cord pipe 9 is provided with check valve steel wire stay cord 10, and the surface fixedly connected with stay cord staple 11 of a lower section of thick bamboo 1 of smoke protection reflux device, the quantity of 11 stay cord staple is two and distributes from top to bottom, and the lower fixed surface of bottom plate 19 is connected with drain pipe 18, and drain pipe 18's inside is provided with drain ball valve 12, and drain pipe 18's one end extends to the inside of a lower section of thick bamboo 1 of smoke protection reflux device, and drain pipe 18 is linked together with a lower section of thick bamboo 1 of smoke protection reflux device, and check valve steel wire stay cord 10's one end and ring 7 fixed connection, check valve steel wire stay cord 10 keep away from ring 7 one end and stay cord staple 11 fixed connection.
Working principle: before the generator set starts to operate, one end of a check valve steel wire stay rope 10 is fixed on a circular ring 7 of a butt-clamp disc type check valve cover plate 17, the check valve steel wire stay rope passes through a stay rope guide pipe 9, the butt-clamp disc type check valve cover plate 17 is lifted until a limit nail 8 is propped up, the tail end of the check valve steel wire stay rope 10 is fixed on two stay rope fixing nails 11, at the moment, a smoke backflow prevention device is in a whole body state, when the generator set is stopped passively or actively, a power station maintainer only needs to unwind the steel wire stay rope fixed on the two stay rope fixing nails 11, the butt-clamp disc type check valve cover plate 17 actively covers the check valve under the action of gravity, at the moment, the upper cylinder and the lower cylinder of the smoke backflow prevention device are in a closed state, meanwhile, a drain ball valve 12 is opened, smoke backflow discharged by other generator sets connected in parallel with the power station is stopped to the butt-clamp disc type check valve cover plate 17, water drops after smoke condensation drop to a drain pipe 18 through a drain hole 22, and the drain ball valve 12 is opened.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (8)
1. An anti-smoke reflux device, comprising: the smoke backflow prevention device comprises a lower cylinder (1) of the smoke backflow prevention device, a bottom plate (19) is fixedly connected to the lower surface of the lower cylinder (1) of the smoke backflow prevention device, a smoke exhaust pipe (21) is fixedly connected to the inner surface of the bottom plate (19), a wafer-type check valve (13) is fixedly connected to the upper surface of the smoke exhaust pipe (21), a wafer-type check valve cover plate (17) is rotatably connected to the inner surface of the wafer-type check valve (13), a circular ring (7) is fixedly connected to the upper surface of the wafer-type check valve cover plate (17), an upper cylinder connecting flange (14) is fixedly connected to the outer surface of the lower cylinder (1) of the smoke backflow prevention device, a limit nail (8) is fixedly connected to the inner surface of the lower cylinder (1) of the smoke backflow prevention device, and a water discharge hole (22) is formed in the wafer-type check valve (13).
The upper cylinder (2) of the smoke backflow prevention device comprises a high-temperature gasket (3), an upper flange (4), a reducing steel pipe (5), a lower flange (6), a connecting bolt (15) and a fixing nut (16), wherein the inner surface of the lower flange (6) is in threaded connection with the connecting bolt (15), and the outer surface of the connecting bolt (15) is in threaded connection with the fixing nut (16);
the utility model discloses a smoke protection reflux device, including a lower section of thick bamboo (1) of smoke protection reflux device, surface fixedly connected with stay cord pipe (9) of lower section of thick bamboo (1) of smoke protection reflux device, the internal surface of stay cord pipe (9) is provided with check valve steel wire stay cord (10), surface fixedly connected with stay cord staple (11) of lower section of thick bamboo (1) of smoke protection reflux device, the lower surface fixedly connected with drain pipe (18) of bottom plate (19), the inside of drain pipe (18) is provided with drain ball valve (12).
2. The smoke backflow prevention device according to claim 1, wherein the number of the pull rope fixing nails (11) is two and is distributed up and down.
3. The smoke backflow prevention device according to claim 1, wherein a lower cylinder connecting flange (20) is fixedly connected to the side surface of the smoke exhaust pipe (21), and one end of the smoke exhaust pipe (21) extends to the inside of the lower cylinder (1) of the smoke backflow prevention device.
4. A smoke-return prevention device according to claim 1, characterized in that one end of the drain pipe (18) extends into the interior of the lower smoke-return prevention device barrel (1), the drain pipe (18) being in communication with the lower smoke-return prevention device barrel (1).
5. The smoke backflow prevention device according to claim 1, wherein one end of the check valve steel wire stay cord (10) is fixedly connected with the circular ring (7), and one end, far away from the circular ring (7), of the check valve steel wire stay cord (10) is fixedly connected with the stay cord fixing nail (11).
6. The smoke backflow prevention device according to claim 1, wherein the side surfaces of the reducing steel pipes (5) are fixedly connected with the upper flanges (4), and the number of the upper flanges (4) is multiple and distributed in an annular array.
7. A smoke backflow prevention device according to claim 1, characterized in that the outer surface of the connecting bolt (15) is in threaded connection with the upper cylinder connecting flange (14), and the fixing nut (16) is located below the upper cylinder connecting flange (14).
8. A smoke backflow prevention device according to claim 1, characterized in that the upper surface of the high temperature gasket (3) is in contact with the lower flange (6) and the lower surface of the high temperature gasket (3) is in contact with the upper cylinder connecting flange (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322430081.6U CN220667693U (en) | 2023-09-07 | 2023-09-07 | Smoke backflow prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322430081.6U CN220667693U (en) | 2023-09-07 | 2023-09-07 | Smoke backflow prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220667693U true CN220667693U (en) | 2024-03-26 |
Family
ID=90332836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322430081.6U Active CN220667693U (en) | 2023-09-07 | 2023-09-07 | Smoke backflow prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220667693U (en) |
-
2023
- 2023-09-07 CN CN202322430081.6U patent/CN220667693U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |