CN115711335A - Control board pressure reduction and flow division flash tank - Google Patents
Control board pressure reduction and flow division flash tank Download PDFInfo
- Publication number
- CN115711335A CN115711335A CN202211139806.XA CN202211139806A CN115711335A CN 115711335 A CN115711335 A CN 115711335A CN 202211139806 A CN202211139806 A CN 202211139806A CN 115711335 A CN115711335 A CN 115711335A
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- China
- Prior art keywords
- flash tank
- circular plate
- tank shell
- plectane
- shell
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 10
- 230000005494 condensation Effects 0.000 claims abstract description 6
- 238000009833 condensation Methods 0.000 claims abstract description 6
- 230000006837 decompression Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a control plate pressure reduction and flow division flash tank, wherein a flash tank shell is cylindrical and 400mm in length, an outer side end connecting flange of the shell is connected with a double condensation reduction water pipe through a reducing flange, and an inner side end connecting flange of the shell is connected with a drainage main pipe of a deaerator; two plectanes about the middle part internal weld of flash tank shell is setting up, the plectane diameter is 100mm, left side plectane is personally submitted 45 degrees angles with the level, right side plectane is personally submitted 135 degrees angles with the level, the top of two plectanes links to each other, all be central symmetry on every plectane, 8 equalling is setting up a plurality of aperture 8 mm's round hole, hole and hole interval 10mm, wherein left plectane center has a through-hole, and the center of right plectane does not have the through-hole, be connected an internal diameter 32 mm's shunt tubes on the flash tank shell top surface of 20mm position department in left side plectane top, be connected an internal diameter 32 mm's shunt tubes on the flash tank shell bottom surface of 20mm department in right side plectane bottom left side, two shunt tubes extend 60mm in the hydrophobic house steward of oxygen-eliminating device respectively.
Description
Technical Field
The invention relates to a control board pressure reduction and flow division flash tank.
Background
After 50-100 tons of double-reduction (temperature and pressure reduction) main condensed water of a thermal power plant and working steam generated by a pressure reduction pump are regulated by a regulating valve, steam-water medium with the pressure value of 1-1.2MPa is conveyed to a drainage main pipe of a deaerator (as shown in the figure). The pipe wall at the junction of the main pipe (133 mm steel pipe, 4mm wall thickness) and the double water reducing pipelines bears long-time impact of pressure medium, so that the inner pipe wall is worn and thinned (the weak part of the pipe wall around the defect is less than or equal to 0.5 mm), and then a plurality of leakage points are generated. If the steel plate is adopted for welding and leaking stoppage, the welded steel plate is washed to leak after running, the process is repeated, the more the defects are gathered, and the greater the potential safety hazard exists.
Disclosure of Invention
The invention aims to provide a control plate pressure reduction and flow division flash tank which can reduce the scouring effect of liquid on the wall of a main pipe and eliminate the hidden danger of impact, abrasion and leakage of the main pipe.
The invention adopts the technical scheme that the control panel pressure reduction and flow division flash tank comprises a flash tank shell, wherein the flash tank shell is cylindrical, the length of the flash tank shell is 400mm, the inner diameter of the flash tank shell is 108mm, connecting flanges are respectively arranged at two ends of the flash tank shell, the connecting flange at the outer side end of the flash tank shell is connected with a double condensation reduction water pipe with the inner diameter of 32mm through a reducing flange, and the connecting flange at the inner side end of the flash tank shell is connected with a drainage main pipe of a deaerator; the middle part of a shell of the flash tank is internally welded with a left circular plate and a right circular plate which are both 8mm in thickness, the diameters of the circular plates are both 100mm, the left circular plate and the horizontal plane form an angle of 45 degrees, the right circular plate and the horizontal plane form an angle of 135 degrees, the top ends of the two circular plates are connected, each circular plate is centrosymmetric, a plurality of circular holes with the diameter of 8mm are arranged on each circular plate in an evenly-divided manner, the intervals between the holes are 10mm, the center of the left circular plate is provided with a through hole, the center of the right circular plate is not provided with the through hole, and the holes on the left circular plate and the right circular plate are arranged in a staggered manner; connect an internal diameter 32 mm's shunt tubes on the flash tank shell top surface of left side plectane top left side 20mm position department, connecting an internal diameter 32 mm's shunt tubes on the flash tank shell bottom surface of right plectane bottom left side 20mm department, two shunt tubes extend through flange respectively the hydrophobic house steward of oxygen-eliminating device in 60mm, the end that two shunt tubes are located the hydrophobic house steward of oxygen-eliminating device all bends downwards unanimously with the rivers direction in the hydrophobic house steward.
The working principle is as follows: the general principle that the pressure of a certain medium is inversely proportional to the volume of a pressure-bearing space and the pressure is reduced after the flowing medium is blocked is utilized. After the double-reduction main condensation steam of 1-1.2MPa enters the container after being improved and expanded, the pressure is greatly released and reduced. 1) One part is led into a flow dividing pipe 1 along a clapboard 1 which is obliquely arranged in the flash tank and enters a drainage main pipe, and the other part is decompressed through a hole on the clapboard 1 and enters between two clapboards; 2) Part of the water vapor passing through the partition plate 1 is introduced into the flow dividing pipe 2 through the inclined partition plate 2, and part (most) of the water vapor passes through the holes in the partition plate 2 to be blocked again for pressure reduction, and is introduced from the elbow along the flow direction of the drainage main pipe, so that the impact effect on the wall of the main pipe is reduced to the minimum, the hidden danger of impact abrasion and leakage of the main pipe is eliminated, and the practice proves that the effect is good.
The using method comprises the following steps: install the reposition of redundant personnel flash vessel after installing baffle additional and dilatation transformation between the water delivery house steward that main condensation water got into the oxygen-eliminating device, can eliminate the possibility that drain house steward is strikeed the wearing and tearing and leaks, even reposition of redundant personnel flash vessel work is unusual, also can demolish both ends coupling flange fast, changes reserve reposition of redundant personnel flash vessel, resumes production in the short time, need not to stop production. After the double-reduction main condensed water enters the flow-dividing expansion tank, the volume is increased, the first expansion and pressure reduction is realized, and part of water vapor enters the drainage main pipe after being divided by the flow-dividing pipe 1; the water vapor medium with the primary pressure reduction forms a water beam after passing through the clapboard 1, the water vapor is dispersed and then subjected to secondary expansion and pressure reduction, and part of the water vapor is shunted by the shunt pipe 2 and also enters the drainage header pipe; the water beam after the second depressurization passes through the partition plate 2 to be expanded and depressurized. Finally, the pressure of the medium subjected to three times of expansion and depressurization and twice flow distribution when entering the drainage main pipe is greatly reduced, the impact on the inner wall of the main pipe is very small, and destructive damage cannot be caused. The production practice proves that the control board flow-dividing pressure-reducing flash tank has excellent application effect and can be popularized and applied.
Drawings
The present invention will be described in further detail below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a front view connection structure of the present invention;
FIG. 2 is a front view of the left circular plate of the present invention;
fig. 3 is a front view of the right circular plate of the present invention.
Detailed Description
A control plate decompression and shunt flash tank is shown in figures 1, 2 and 3 and comprises a flash tank shell 7, wherein the flash tank shell 7 is cylindrical, the length of the flash tank shell 7 is 400mm, the inner diameter of the flash tank shell is 108mm, connecting flanges are respectively arranged at two ends of the shell 7, a double condensation reducing water pipe 6 with the inner diameter of 32mm is connected to the connecting flange at the outer side end of the shell 7 through a reducing flange, and the connecting flange at the inner side end of the shell 7 is connected to a drain main pipe 4 of a deaerator; the method comprises the following steps that a left circular plate 1 and a right circular plate 2 which are 8mm in thickness are welded in the middle of a shell of a flash tank, the diameters of the circular plates are 100mm, the left circular plate 1 forms an angle of 45 degrees with a horizontal plane, the right circular plate 2 forms an angle of 135 degrees with the horizontal plane, the top ends of the two circular plates are connected, each circular plate is centrosymmetric, a plurality of circular holes with the diameter of 8mm are arranged in an evenly-divided mode in 8, the distance between each hole and the corresponding hole is 10mm, a through hole is formed in the center of the left circular plate 1, no through hole is formed in the center of the right circular plate 2, and the holes in the left circular plate and the right circular plate are arranged in a staggered mode; connect a internal diameter 32 mm's shunt tubes 5 on the flash tank shell top surface of 1 top left side 20mm position department of left plectane, connecting a internal diameter 32 mm's shunt tubes 3 on the flash tank shell bottom surface of 20mm department in right plectane bottom left side, two shunt tubes 5, 3 extend through flange respectively the hydrophobic house steward 4 of oxygen-eliminating device in 60mm, the end that two shunt tubes 5, 3 are located the hydrophobic house steward 4 of oxygen-eliminating device all bends downwards and is unanimous with the interior rivers direction of hydrophobic house steward.
Claims (1)
1. The utility model provides a flash vessel is shunted in accuse board decompression, includes the flash vessel shell, characterized by: the flash tank shell is cylindrical, the length of the flash tank shell is 400mm, the inner diameter of the flash tank shell is 108mm, connecting flanges are arranged at two ends of the flash tank shell respectively, the connecting flange at the outer side end of the flash tank shell is connected with a double condensation reducing water pipe with the inner diameter of 32mm through a reducing flange, and the connecting flange at the inner side end of the flash tank shell is connected with a drain header pipe of a deaerator; the middle part of a shell of the flash tank is internally welded with a left circular plate and a right circular plate which are both 8mm in thickness, the diameters of the circular plates are both 100mm, the left circular plate and the horizontal plane form an angle of 45 degrees, the right circular plate and the horizontal plane form an angle of 135 degrees, the top ends of the two circular plates are connected, each circular plate is centrosymmetric, a plurality of circular holes with the diameter of 8mm are arranged on each circular plate in an evenly-divided manner, the intervals between the holes are 10mm, the center of the left circular plate is provided with a through hole, the center of the right circular plate is not provided with the through hole, and the holes on the left circular plate and the right circular plate are arranged in a staggered manner; connect an internal diameter 32 mm's shunt tubes on the flash tank shell top surface of left plectane top left side 20mm position department, connecting an internal diameter 32 mm's shunt tubes on the flash tank shell bottom surface of right plectane bottom left side 20mm department, two shunt tubes extend through flange respectively the hydrophobic house steward of oxygen-eliminating device in 60mm, two shunt tubes are located the end in the hydrophobic house steward of oxygen-eliminating device and all bend downwards and are unanimous with the interior rivers direction of hydrophobic house steward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211139806.XA CN115711335A (en) | 2022-09-19 | 2022-09-19 | Control board pressure reduction and flow division flash tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211139806.XA CN115711335A (en) | 2022-09-19 | 2022-09-19 | Control board pressure reduction and flow division flash tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115711335A true CN115711335A (en) | 2023-02-24 |
Family
ID=85230721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211139806.XA Pending CN115711335A (en) | 2022-09-19 | 2022-09-19 | Control board pressure reduction and flow division flash tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115711335A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5291911A (en) * | 1993-07-19 | 1994-03-08 | Texaco Inc. | Conical variable area throttling device |
| DE19825151A1 (en) * | 1998-06-05 | 1999-12-09 | Detlef Joniskeit | Silencer for pneumatic valves |
| US20090178720A1 (en) * | 2008-01-14 | 2009-07-16 | Torres Marlene H | Tee Flow Splitter |
| CN202812772U (en) * | 2012-09-28 | 2013-03-20 | 无锡联营电力设备有限公司 | Expansion separation device of drain flash tank |
| CN103162090A (en) * | 2013-02-01 | 2013-06-19 | 浙江富春江环保热电股份有限公司 | Steam pipeline |
| KR20170097923A (en) * | 2016-02-19 | 2017-08-29 | 주식회사 에너리트 | Strainer |
| CN209569520U (en) * | 2019-01-02 | 2019-11-01 | 山东济容热工科技有限公司 | A kind of built-in flow apron for boiler starting hydrophobic expanding container |
| CN211399307U (en) * | 2019-11-26 | 2020-09-01 | 兰陵琦泉生物质发电有限公司 | Automatic drainage device for boiler soot blower |
| CN215568892U (en) * | 2021-07-12 | 2022-01-18 | 湖南神斧集团一六九化工有限责任公司 | Shunting immersion steam silencer |
| CN216976526U (en) * | 2022-03-16 | 2022-07-15 | 英侨机械制造有限公司 | Integrated heat tracing integrated station |
-
2022
- 2022-09-19 CN CN202211139806.XA patent/CN115711335A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5291911A (en) * | 1993-07-19 | 1994-03-08 | Texaco Inc. | Conical variable area throttling device |
| DE19825151A1 (en) * | 1998-06-05 | 1999-12-09 | Detlef Joniskeit | Silencer for pneumatic valves |
| US20090178720A1 (en) * | 2008-01-14 | 2009-07-16 | Torres Marlene H | Tee Flow Splitter |
| CN202812772U (en) * | 2012-09-28 | 2013-03-20 | 无锡联营电力设备有限公司 | Expansion separation device of drain flash tank |
| CN103162090A (en) * | 2013-02-01 | 2013-06-19 | 浙江富春江环保热电股份有限公司 | Steam pipeline |
| KR20170097923A (en) * | 2016-02-19 | 2017-08-29 | 주식회사 에너리트 | Strainer |
| CN209569520U (en) * | 2019-01-02 | 2019-11-01 | 山东济容热工科技有限公司 | A kind of built-in flow apron for boiler starting hydrophobic expanding container |
| CN211399307U (en) * | 2019-11-26 | 2020-09-01 | 兰陵琦泉生物质发电有限公司 | Automatic drainage device for boiler soot blower |
| CN215568892U (en) * | 2021-07-12 | 2022-01-18 | 湖南神斧集团一六九化工有限责任公司 | Shunting immersion steam silencer |
| CN216976526U (en) * | 2022-03-16 | 2022-07-15 | 英侨机械制造有限公司 | Integrated heat tracing integrated station |
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