CN110748872A - High-pressure steam exhaust device - Google Patents
High-pressure steam exhaust device Download PDFInfo
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- CN110748872A CN110748872A CN201911025226.6A CN201911025226A CN110748872A CN 110748872 A CN110748872 A CN 110748872A CN 201911025226 A CN201911025226 A CN 201911025226A CN 110748872 A CN110748872 A CN 110748872A
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- pipeline
- exhaust
- branch
- main
- high pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements, or dispositions of alarm or automatic safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a high-pressure steam exhaust device, which comprises an exhaust main pipeline and an exhaust branch pipeline; an air guide plate is arranged in the main exhaust pipeline, extends spirally on the inner side of the main exhaust pipeline and is intersected with the air port of the branch pipe; the exhaust branch pipeline is provided with a wave-shaped bent ventilation main pipeline and a straight branch pipeline which is connected to the wave trough of the bent ventilation main pipeline and penetrates through the bent ventilation main pipeline; and the straight branch pipeline is internally provided with a ventilation buffer piece for controlling the air flow of the straight branch pipeline to be communicated and closed, and the ventilation buffer piece is arranged at the outer side of the connecting point of the straight branch pipeline and the bent ventilation main pipeline. The high-pressure steam exhaust device can slow down the direct impact of high-pressure steam on the pipeline and guide the circulation path of the steam in the exhaust main pipeline to circulate spirally, so that a large amount of impact force can be converted into centripetal force, the circulation pipeline in the exhaust main pipeline can be cleaned, and the impact force is effectively utilized.
Description
Technical Field
The invention relates to the field of steam exhaust equipment, in particular to a high-pressure steam exhaust device.
Background
The 50MW power generation gas boiler blowdown system adopts a manner that a manifold converges to a main pipe for continuous and timed blowdown, and the connecting part of a blowdown branch pipe and the main pipe is welded in a 90-degree direct insertion manner, converges to the main pipe and is guided to a blowdown tank.
The design working pressure of the boiler is 9.98MPa, normal operation is about 9.8MPa at ordinary times, the sewage branch pipe and the main pipe are welded in a 90-degree direct insertion mode, steam of the high-pressure steam of the branch pipe can directly impact the wall of the main pipe during operation, impact force is quite large, the main pipe of the sewage pipe is often exploded, and the boiler is temporarily shut down for rush repair. Unnecessary maintenance cost is caused to the normal operation of enterprises.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a high-pressure steam exhaust device which can reduce the impact force of high-pressure steam on a pipeline and can accelerate and guide the gas in a main pipe to circulate.
The invention provides a high-pressure steam exhaust device, which comprises an exhaust main pipeline and an exhaust branch pipeline, wherein the exhaust branch pipeline is connected with the exhaust main pipeline at an included angle through a branch pipe air vent; an air guide plate is arranged in the main exhaust pipeline, extends spirally on the inner side of the main exhaust pipeline and is intersected with the air port of the branch pipe; the exhaust branch pipeline is provided with a wave-shaped bent ventilation main pipeline and a straight branch pipeline which is connected to the wave trough of the bent ventilation main pipeline and penetrates through the bent ventilation main pipeline; and the straight branch pipeline is internally provided with a ventilation buffer piece for controlling the air flow of the straight branch pipeline to be communicated and closed, and the ventilation buffer piece is arranged at the outer side of the connecting point of the straight branch pipeline and the bent ventilation main pipeline.
The air guide plates arranged on the exhaust main pipeline extend spirally along the axial direction in the whole exhaust main pipeline, preferably, the two air guide plates are arranged at the positions of the branch air vents along the two sides of the branch air vents, so that the air of the exhaust branch pipelines can be guided spirally. The main bent ventilation pipeline is arranged into a wave shape, and preferably a plurality of wave-shaped repeated structures are arranged, wherein the wave-shaped repeated structures comprise wave crests and wave troughs; the straight branch pipe is arranged at the position of the wave trough. The part of the bent ventilation main pipeline connected with the exhaust main pipeline is provided with an arc-shaped pipe which is used for combining the straight branch pipeline and the bent ventilation main pipeline into one passage.
The invention also provides the following optimization scheme:
preferably, the ventilating and buffering member comprises an elastic member and supporting members arranged on two sides of the elastic member; the supporting pieces are arranged on two sides of the elastic piece and seal the ventilation passage of the straight branch pipeline.
More preferably, the support piece comprises an arc-shaped plate, a support bar with one end connected with the arc-shaped plate, and a blank arc-shaped plate arranged at the other end of the support bar.
More preferably, the elastic member includes a top plate, a bottom plate, and a spring member connecting the top plate and the bottom plate.
More preferably, the bottom plate is connected to the side of the supporting bar.
Preferably, a plurality of exhaust branch pipes are connected to the exhaust main pipe.
More preferably, the exhaust branch pipes are arranged along the circumferential direction of the exhaust main pipe, and the plurality of branch pipe air vents are spaced at a certain interval in the axial direction.
More preferably, the air guide plate is connected to a plurality of branch pipe air vents.
Preferably, the included angle is 10-80 degrees.
More preferably, the included angle is 45 degrees.
The invention has the beneficial effects that:
1. the high-pressure steam exhaust device can slow down the direct impact of high-pressure steam on the pipeline and guide the circulation path of the steam in the exhaust main pipeline to circulate spirally, so that a large amount of impact force can be converted into centripetal force, the circulation pipeline in the exhaust main pipeline can be cleaned, and the impact force is effectively utilized;
2. the exhaust branch pipeline of the high-pressure steam exhaust device is provided with the bent ventilation main pipeline and the straight branch pipeline, when normal high-pressure steam circulates, the bent ventilation main pipeline is used for circulating, when a large amount of high-pressure steam exists instantaneously, ventilation can be carried out through the bent ventilation main pipeline and the straight branch pipeline, and the small fluctuation range of the air pressure in the pipeline is ensured;
3. the exhaust branch pipelines of the high-pressure steam exhaust device are respectively arranged at different circumferential positions of the exhaust main pipeline and can be arranged in a staggered mode, and the pipeline pressure is dispersed.
Drawings
FIG. 1 is a front view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 2 is a perspective view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 3 is a perspective view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 4 is a perspective view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 5 is a perspective view of a high pressure vapor vent apparatus in accordance with a preferred embodiment of the present invention;
FIG. 6 is a front view of a vented bumper of a preferred embodiment of the present invention;
FIG. 7 is a perspective view of a vented bumper of a preferred embodiment of the present invention;
FIG. 8 is a perspective view of a vented bumper of a preferred embodiment of the present invention;
the specific reference numerals are:
1, an exhaust main pipeline; 2 an exhaust branch pipe; 11 branch pipe air ports; 12, a gas guide plate; 21 bending the main ventilation pipeline; 22 straight branch pipes; 23 a venting bumper; 231 an elastic member; 232 a support member; 2311 a top plate; 2312 a bottom plate; 2313 a spring element; 2321 an arc plate; 2322 supporting the bar; 2323 and making a blank arc plate.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the present invention will be further described in detail with reference to the following embodiments.
As shown in fig. 1-8, the present invention firstly provides a high pressure steam exhaust device, which comprises an exhaust main pipeline 1, an exhaust branch pipeline 2 connected with the exhaust main pipeline 1 at an included angle through a branch pipe air vent 11; an air guide plate 12 is arranged in the main exhaust pipeline 1, and the air guide plate 12 extends spirally on the inner side of the main exhaust pipeline 1 and is intersected with the branch pipe air vent 11; the exhaust branch pipeline 2 is provided with a wave-shaped bent ventilation main pipeline 21 and a straight branch pipeline 22 which is connected to the wave trough of the bent ventilation main pipeline 21 and penetrates through the bent ventilation main pipeline 21; the straight branch pipeline 22 is internally provided with a ventilation buffer piece 23 for controlling the air flow of the straight branch pipeline 22, and the ventilation buffer piece 23 is arranged outside the connection point of the straight branch pipeline 22 and the bent ventilation main pipeline 21.
The air guide plates 12 arranged on the main exhaust pipeline 1 extend spirally along the axial direction in the whole main exhaust pipeline 1, preferably, two air guide plates 12 are arranged and are arranged along two sides of the branch pipe air opening 11 at the branch pipe air opening 11, so that the air of the branch exhaust pipeline 2 can be guided spirally. After the gas is guided by the gas guide plate 12, a spiral gas flow taking the circle center of the exhaust main pipeline 1 as a spiral center can be formed in the exhaust main pipeline 1, the radial pressure of the gas flow on the pipe wall of the exhaust main pipeline 1 can be reduced, and a plurality of gas flows are arranged into a spiral gas flow.
The main bent ventilation pipeline 21 is arranged in a wave shape, and preferably a plurality of wave-shaped repeating structures are arranged, wherein the wave-shaped repeating structures comprise wave crests and wave troughs; the straight branch pipes 22 are disposed at the positions of the wave troughs. The advantage that sets up like this is when having high-pressure air current, because the pipeline is curved shape to set up, and one comes direct impact force little, and two come the circulation route and be provided with the difference in height, form the atmospheric pressure of a antagonism, and three come the diversion of circulation route longer for the pipeline pressure of every section is not so big, can be favorable to dispersing pipeline pressure.
The included angle between the main exhaust pipeline 1 and the branch exhaust pipeline 2 is 10-80 degrees. More preferably, the included angle is 45 degrees. The included angle setting can directly reduce the direct impact force to the exhaust main pipeline 1, so that the direct impact force is dispersed into radial and axial gas impact force, and part of the impact force can be directly dispersed. When the angle is set to 45 degrees, the radial and axial impact force can be equally divided, so that the possibility of overlarge pressure of local impact force can be further reduced.
The connection part of the curved main ventilation pipeline 21 and the exhaust main pipeline 1 is provided with an arc-shaped pipe which is used for combining two passages of the straight branch pipeline 22 and the curved main ventilation pipeline 21 into one passage. This has the advantage that flow from one passage into the exhaust main 1 is maintained, which facilitates the guidance of the air flow in the main.
The ventilating and cushioning member 23 includes an elastic member 231 and supporting members 232 disposed at both sides of the elastic member 231; the supporting member 232 is disposed at both sides of the elastic member 231 and seals the air passage of the straight branch pipe 22. The supporting member 232 includes an arc plate 2321, a supporting bar 2322 with one end connected to the arc plate 2321, and a blank arc plate 2323 disposed at the other end of the supporting bar 2322. The elastic member 231 includes a top plate 2311, a bottom plate 2312, and a spring member 2313 connecting the top plate 2311 and the bottom plate 2312. The bottom plate 2312 is connected to the side of the supporting bar 2322.
The supporting member 232 and the elastic member 231 form a ventilating buffer member 23 for sealing the straight branch pipe 22, the supporting member 232 is directly and fixedly connected with the inner wall of the straight branch pipe 22, and the supporting member 232 and the elastic member 231 integrally form a complete circular cross section to seal the inside of the whole straight branch pipe 22. The elastic member 231 is disposed in the middle, and the two supporting members 232 are disposed at both sides. The support bars 2322 are configured to allow gas flow therethrough, and the blank arcuate plate 2323 is a plate having the outer annular contour of the arcuate plate 2321, and is configured to provide a larger flow path and a larger gas flux. And the bottom plate 2312 of the elastic member 231 is arranged at the side of the supporting bar 2322, and preferably at the middle or two-thirds length position of the supporting bar 2322, rather than at the side of the blank arc-shaped plate 2323, so that the position of blocking the air flow can be staggered, and the resistance of the air flow can be optimized. Preferably, the outer side of the top plate 2311 is curved so as to more easily guide the gas to flow through from both sides of the top plate 2311, thereby minimizing the flow resistance of the gas.
The exhaust main pipeline 1 is connected with a plurality of exhaust branch pipelines 2. The exhaust branch pipes 2 are arranged along the circumferential direction of the exhaust main pipe 1, and a plurality of branch pipe air inlets 11 are spaced at a certain interval in the axial direction. The air guide plate 12 is connected with a plurality of branch pipe air vents 11.
When the exhaust branch pipelines 2 are connected with the same exhaust main pipeline 1, the exhaust branch pipelines 2 are arranged to be arranged around the circumference of the exhaust main pipeline 1, preferably, the included angles between the exhaust branch pipelines are equal. Therefore, each exhaust branch pipeline 2 can be installed more conveniently, and the exhaust branch pipelines 2 are arranged to be connected at equal angles in the circumferential direction, so that when gas flows into the exhaust main pipeline 1, after impact forces at several angles are mutually offset, direct radial impact forces of airflow in different directions can be reduced, and axial rotating force is enhanced.
The use method of the high-pressure steam exhaust device comprises the following steps:
the three exhaust branch pipelines 2 are connected to an exhaust main pipeline 1, the included angle between the three exhaust branch pipelines 2 is 120 degrees, high-pressure steam flows into the exhaust main pipeline 1 from the three exhaust branch pipelines 2, when the pressure in the pipelines is not very high, the straight branch pipelines 22 are sealed by the ventilating and buffering piece 23, air flow can only flow from the bent ventilating main pipeline 21, the flowing channels are long, and the pressure is uniformly dispersed. When the air flow circulates from the curved ventilation main pipe 21 to the exhaust main pipe 1, the air flow is guided by the air guide plate 12 to form a spiral forward rotating air flow in the exhaust main pipe 1, and the influence of direct impulse discharged from the exhaust branch pipe 2 is reduced while the air flow moves forward. When the pressure of the gas flow in the exhaust branch pipe 2 is instantaneously increased, the gas flow firstly circulates along the straight branch pipe 22, and when the gas flow flows to the place connected with the curved ventilation main pipe 21, the gas flows from the curved ventilation main pipe 21 due to the pushing of the elastic member 231 when the pressure is small. When the gas pressure is high, the elastic member 231 is compressed inward under the pushing of the gas pressure, so that the gas flows through the elastic member 231, and the elastic member 231 on the other side is stretched outward under the action of the pressure, so that the gas flows through the straight branch pipeline 22, the instantaneous flow rate of the gas is increased, and the pressure on the pipe wall is reduced.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. A high pressure vapor vent apparatus, comprising: the device comprises an exhaust main pipeline and an exhaust branch pipeline which is connected with the exhaust main pipeline through a branch pipe air vent at an included angle; an air guide plate is arranged in the main exhaust pipeline, extends spirally on the inner side of the main exhaust pipeline and is intersected with the air port of the branch pipe; the exhaust branch pipeline is provided with a wave-shaped bent ventilation main pipeline and a straight branch pipeline which is connected to the wave trough of the bent ventilation main pipeline and penetrates through the bent ventilation main pipeline; and the straight branch pipeline is internally provided with a ventilation buffer piece for controlling the air flow of the straight branch pipeline to be communicated and closed, and the ventilation buffer piece is arranged at the outer side of the connecting point of the straight branch pipeline and the bent ventilation main pipeline.
2. The high pressure vapor vent apparatus as set forth in claim 1, wherein: the ventilating buffer piece comprises an elastic piece and supporting pieces arranged on two sides of the elastic piece; the supporting pieces are arranged on two sides of the elastic piece and seal the ventilation passage of the straight branch pipeline.
3. The high pressure vapor vent apparatus as set forth in claim 2, wherein: the support piece comprises an arc-shaped plate, a support bar with one end connected with the arc-shaped plate, and a blank arc-shaped plate arranged at the other end of the support bar.
4. The high pressure vapor vent apparatus as set forth in claim 3, wherein: the elastic piece comprises a top plate, a bottom plate and a spring piece connected with the top plate and the bottom plate.
5. The high pressure vapor vent apparatus as set forth in claim 4, wherein: the bottom plate is connected to the side of the supporting bar.
6. The high pressure vapor vent apparatus as set forth in claim 1, wherein: and the exhaust main pipeline is connected with a plurality of exhaust branch pipelines.
7. The high pressure vapor vent apparatus as set forth in claim 6, wherein: the exhaust branch pipelines are arranged along the circumferential direction of the exhaust main pipeline, and a plurality of branch pipeline air vents are axially spaced at a certain interval.
8. The high pressure vapor vent apparatus as recited in claim 7, further comprising: the air guide plate is connected with a plurality of branch pipe air vents.
9. The high pressure vapor vent apparatus as set forth in claim 1, wherein: the included angle is 10-80 degrees.
10. The high pressure vapor vent apparatus as set forth in claim 9, wherein: the included angle is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911025226.6A CN110748872B (en) | 2019-10-25 | 2019-10-25 | High-pressure steam exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911025226.6A CN110748872B (en) | 2019-10-25 | 2019-10-25 | High-pressure steam exhaust device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110748872A true CN110748872A (en) | 2020-02-04 |
| CN110748872B CN110748872B (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911025226.6A Active CN110748872B (en) | 2019-10-25 | 2019-10-25 | High-pressure steam exhaust device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4324126A1 (en) * | 1992-10-14 | 1994-04-21 | Yano Giken Kk | Pipe connection device |
| CN201121788Y (en) * | 2007-09-11 | 2008-09-24 | 杨宇楠 | Pipe line for fluid lattice even distribution |
| CN201420927Y (en) * | 2009-04-20 | 2010-03-10 | 中国华电工程(集团)有限公司 | Branching pipe provided with guide plates |
| CN205447066U (en) * | 2015-12-29 | 2016-08-10 | 广西大学 | Toper multichannel divides water collector |
| CN206530806U (en) * | 2016-12-30 | 2017-09-29 | 江阴东联高压管件有限公司 | 200MW generating set main steam line high pressures are confluxed threeway |
| CN207584248U (en) * | 2017-12-06 | 2018-07-06 | 浙江固的管业有限公司 | A kind of three-way pipe |
| CN207813871U (en) * | 2017-12-07 | 2018-09-04 | 中铁隧道集团四处有限公司 | Air compressor energy conserving system |
| CN208170653U (en) * | 2018-04-23 | 2018-11-30 | 王树春 | A kind of air condition air inlet pipe |
-
2019
- 2019-10-25 CN CN201911025226.6A patent/CN110748872B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4324126A1 (en) * | 1992-10-14 | 1994-04-21 | Yano Giken Kk | Pipe connection device |
| CN201121788Y (en) * | 2007-09-11 | 2008-09-24 | 杨宇楠 | Pipe line for fluid lattice even distribution |
| CN201420927Y (en) * | 2009-04-20 | 2010-03-10 | 中国华电工程(集团)有限公司 | Branching pipe provided with guide plates |
| CN205447066U (en) * | 2015-12-29 | 2016-08-10 | 广西大学 | Toper multichannel divides water collector |
| CN206530806U (en) * | 2016-12-30 | 2017-09-29 | 江阴东联高压管件有限公司 | 200MW generating set main steam line high pressures are confluxed threeway |
| CN207584248U (en) * | 2017-12-06 | 2018-07-06 | 浙江固的管业有限公司 | A kind of three-way pipe |
| CN207813871U (en) * | 2017-12-07 | 2018-09-04 | 中铁隧道集团四处有限公司 | Air compressor energy conserving system |
| CN208170653U (en) * | 2018-04-23 | 2018-11-30 | 王树春 | A kind of air condition air inlet pipe |
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| CN110748872B (en) | 2022-02-15 |
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