CN103353105A - Continuous blowdown flash tank - Google Patents
Continuous blowdown flash tank Download PDFInfo
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- CN103353105A CN103353105A CN2013102612760A CN201310261276A CN103353105A CN 103353105 A CN103353105 A CN 103353105A CN 2013102612760 A CN2013102612760 A CN 2013102612760A CN 201310261276 A CN201310261276 A CN 201310261276A CN 103353105 A CN103353105 A CN 103353105A
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- flash tank
- cylindrical shell
- continuous blowdown
- blowdown flash
- tank according
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Abstract
The invention relates to a continuous blowdown flash tank which comprises a vertical type cylinder body, wherein a sewage inlet and a manhole are formed in the cylinder body; a liquid level measuring device, a temperature meter and a pressure sampling tube are also arranged on the cylinder body; a pressure gauge is arranged on the pressure sampling tube; a top plate is arranged above the sewage inlet; a baffle extending downwards is connected to the top plate; two sides of the baffle are connected with the inner wall of the cylinder body; the sewage inlet is completely covered with the top plate and the baffle; and an abrasion-resistant plate is arranged on the inner wall of the cylinder body at the lower part on the same side of the sewage inlet. In a further improvement, the liquid level measuring device is a magnetic turning board type liquid level meter, and the pressure sampling tube is a stainless steel tube. Compared with the prior art, the liquid level measurement and the pressure measurement are more accurate, and the service life of the continuous blowdown flash tank is longer.
Description
Technical field
The present invention relates to a kind of boiler blow-off wetting system, especially relate to a kind of continuous blowdown water with boiler and carry out the continuous blowdown flash tank that the dilatation step-down separates to carry out steam.
Background technology
The boiler blow-off flash vessel comprises regular unloading container and continuous blowdown flash tank, and continuous blowdown flash tank is from drum the stove water of stove water salt concentration maximum to be discharged continuously, in order to make stove water often keep good quality, thereby produces qualified steam.
During continuous blowdown flash tank work, sewer is entered by water inlet, current are along the tangent line pipe inspection, the moisture film that inwall forms rotates and descends, because centrifugal action, form the water membrane skirt of High Rotation Speed at mouth of pipe place, by the make progress saturated vapor heating of ascension of packing layer bottom, the oxygen and the incondensable gas that are dissolved in the water are overflowed in water, enter atmosphere through the gland steam exhauster of the steam-water separator on end socket top.The heat transfer coefficient of this equipment is higher, can in the short period of time water be heated to the state of requirement.
There is following defective in use in the continuous blowdown flash tank of prior art: on the one hand, have level gauging inaccuracy, the coarse defective of pressure measxurement; On the other hand, the water inlet current are injected rear rotation and the lower cylinder inboard wall that impacts, and cylindrical shell easily weares and teares, and cause product not long defective in service life.
Summary of the invention
In order to overcome the defective of prior art, the purpose of this invention is to provide that a kind of level gauging and pressure measxurement are more accurate, the continuous blowdown flash tank of product longer service life.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of continuous blowdown flash tank, comprise vertical cylindrical shell, described cylindrical shell is provided with sewer import and the manhole with adapter, also be provided with liquid level emasuring device on the described cylindrical shell, thermometer and pressure samples pipe, described pressure samples pipe is provided with pressure gauge, it is characterized in that: the top of described sewer import is provided with top board, be connected with the baffle plate to downward-extension on the described top board, the both sides of described baffle plate are connected with the inwall of described cylindrical shell, described top board and described baffle plate cover on described sewer import wherein fully, and described sewer import is with also being provided with wearing plate on the cylinder inboard wall of side-lower.
Preferably, described wearing plate covers 1/3rd of the inwall girth of described cylindrical shell below described sewer import in a circumferential direction at least.
More preferably, described wearing plate is take the vertical curve at the place, center of described sewer import as symmetrical centre alignment bilateral symmetry extension covering.
More preferably, the top of described wearing plate and the projection section of described baffle plate on described cylinder inboard wall are overlapping.Adopt this structure, directly be flushed on the wearing plate after being back on the inwall after the water that the sewer import is sprayed is stopped by baffle plate.
More preferably, described wearing plate in the vertical direction covers from described sewer import center at least from top to bottom to 2/3rds of the distance of the low head junction of described cylindrical shell.
Further, described wearing plate is corrosion resistant plate.Adopt corrosion resistant plate as wearing plate, increased wearability, further improved the service life of product.
Preferably, the cross section of described baffle plate is arc surfaced.
Preferably, described liquid level emasuring device is the magnetic flap level gauge, described cylindrical shell is provided with level gauging mouth, lower level gauging mouth and is arranged on the outer measurement that connects upper and lower level gauging mouth of described cylindrical shell and takes over, and described magnetic flap level gauge is installed on described measurement and takes over.The magnetic flap level gauge has the mangneto contraction structure, and it is more clear to show, more responsive to the minor variations of liquid level, so level gauging is more accurate.
Preferably, described pressure samples pipe is stainless steel tube.Adopt stainless steel tube to replace traditional carbon steel pipe as the pressure samples pipe, solution has been grown the serious problem of stopping up of later internal corrosion because of the pressure samples pipe service time, thereby has avoided the inaccurate defective of consequent pressure measxurement.Use stainless steel tube as the pressure samples pipe, pressure measxurement is more accurate.
Because adopt technique scheme, compared to prior art, a kind of continuous blowdown flash tank level gauging provided by the invention and pressure measxurement are more accurate, longer service life.
Description of drawings
Fig. 1 is the front view of continuous blowdown flash tank of the present invention.
Fig. 2 is the top view of continuous blowdown flash tank of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
See also Fig. 1 and Fig. 2, the invention provides a kind of continuous blowdown flash tank, comprise vertical cylindrical shell 1, described cylindrical shell 1 is provided with to have takes over 21 sewer import 2 and manhole 3, also be provided with liquid level emasuring device 4, thermometer 5 and pressure samples pipe 6 on the described cylindrical shell 1, described pressure samples pipe 6 is provided with pressure gauge 7 and relief valve 8.Described cylindrical shell 1 interior top is provided with out vapour demister 11.
The top of described sewer import 2 is provided with top board 9, be connected with the baffle plate 10 to downward-extension on the described top board 9, the both sides of described baffle plate 10 are connected with the inwall of described cylindrical shell 1, the cross section of described baffle plate 10 is arc surfaced, described top board 9 and described baffle plate 10 cover on described sewer import 2 wherein fully, and described sewer import 2 is with also being provided with wearing plate 12 on the cylinder inboard wall of side-lower.Wherein, described wearing plate 12 is corrosion resistant plate.Adopt corrosion resistant plate as wearing plate, increased wearability, further improved the service life of product.
Described wearing plate 12 extends 1/3rd of the inwall girth that covers described sewer import 2 belows take the vertical curve at the place, center of described sewer import 2 as symmetrical centre alignment bilateral symmetry.As described in Figure 2, wearing plate 12 is for overlapping the arc shape of cylindrical shell 1 inwall, and arc angle is 120 °.
The top of described wearing plate 12 and described baffle plate 10 projection section on described cylindrical shell 1 inwall is overlapping.Adopt this structure, directly be flushed on the wearing plate 12 after being back on the inwall after the water that sewer import 2 is sprayed is stopped by baffle plate 10.
Described wearing plate 12 in the vertical directions cover at least from 2/3rds of the distance of center to the low head junction of described cylindrical shell 1 of described sewer import 2.
Described liquid level emasuring device 4 is the magnetic flap level gauge that U.S. MAGTECH company produces, described cylindrical shell 1 is provided with level gauging mouth 41, lower level gauging mouth 42 and is arranged on the outer measurement that connects upper and lower level gauging mouth of described cylindrical shell takes over 43, and described magnetic flap level gauge is installed on described measurement and takes on 43.The magnetic flap level gauge has the mangneto contraction structure, and it is more clear to show, more responsive to the minor variations of liquid level, so level gauging is more accurate.
As shown in Figure 1, in the present embodiment, the vertical direction length L of wearing plate 12 is 1000mm, and its lower end is 184mm apart from the height of low head junction.Be h1+h2+h3=100mm+800mm+400mm, i.e. 1.3mm from the distance of center to the low head junction of cylindrical shell 1 of sewer import 2.Therefore, wearing plate 12 in the vertical directions cover from 76.9% of the distance of center to the low head junction of described cylindrical shell 1 of described sewer import 2.Certainly, wearing plate 12 also can in the vertical direction covers from the center of described sewer import fully to the low head junction of described cylindrical shell.
Described pressure samples pipe 6 is stainless steel tube.Adopt stainless steel tube to replace traditional carbon steel pipe as the pressure samples pipe, solution has been grown the serious problem of stopping up of later internal corrosion because of the pressure samples pipe service time, thereby has avoided the inaccurate defective of consequent pressure measxurement.Use stainless steel tube as the pressure samples pipe, pressure measxurement is more accurate.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement; can not limit protection scope of the present invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (9)
1. continuous blowdown flash tank, comprise vertical cylindrical shell, described cylindrical shell is provided with sewer import and the manhole with adapter, also be provided with liquid level emasuring device on the described cylindrical shell, thermometer and pressure samples pipe, described pressure samples pipe is provided with pressure gauge, it is characterized in that: the top of described sewer import is provided with top board, be connected with the baffle plate to downward-extension on the described top board, the both sides of described baffle plate are connected with the inwall of described cylindrical shell, described top board and described baffle plate cover on described sewer import wherein fully, and described sewer import is with also being provided with wearing plate on the cylinder inboard wall of side-lower.
2. a kind of continuous blowdown flash tank according to claim 1, it is characterized in that: described wearing plate covers 1/3rd of the inwall girth of described cylindrical shell below described sewer import in a circumferential direction at least.
3. a kind of continuous blowdown flash tank according to claim 1 is characterized in that: described wearing plate extends as symmetrical centre alignment bilateral symmetry take the vertical curve at place, described sewer import center and covers.
4. a kind of continuous blowdown flash tank according to claim 3, it is characterized in that: the top of described wearing plate and the projection section of described baffle plate on described cylinder inboard wall are overlapping.
5. a kind of continuous blowdown flash tank according to claim 4 is characterized in that: described wearing plate in the vertical direction covers from described sewer import center at least from top to bottom to 2/3rds of the distance of the low head junction of described cylindrical shell.
6. according to claim 1 to the described a kind of continuous blowdown flash tank of 5 any one, it is characterized in that: described wearing plate is corrosion resistant plate.
7. a kind of continuous blowdown flash tank according to claim 1, it is characterized in that: the cross section of described baffle plate is arc surfaced.
8. a kind of continuous blowdown flash tank according to claim 1, it is characterized in that: described liquid level emasuring device is the magnetic flap level gauge, described cylindrical shell is provided with level gauging mouth, lower level gauging mouth and is arranged on the outer measurement that connects upper and lower level gauging mouth of described cylindrical shell and takes over, and described magnetic flap level gauge is installed on described measurement and takes over.
9. a kind of continuous blowdown flash tank according to claim 1, it is characterized in that: described pressure samples pipe is stainless steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261276.0A CN103353105B (en) | 2013-06-27 | 2013-06-27 | A kind of continuous blowdown flash tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261276.0A CN103353105B (en) | 2013-06-27 | 2013-06-27 | A kind of continuous blowdown flash tank |
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| Publication Number | Publication Date |
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| CN103353105A true CN103353105A (en) | 2013-10-16 |
| CN103353105B CN103353105B (en) | 2015-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310261276.0A Expired - Fee Related CN103353105B (en) | 2013-06-27 | 2013-06-27 | A kind of continuous blowdown flash tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669187A (en) * | 2022-04-07 | 2022-06-28 | 南京大学环境规划设计研究院集团股份公司 | Adjustable biological purification VOCs device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261300A (en) * | 1978-12-26 | 1981-04-14 | Combustion Engineering, Inc. | Nuclear steam generator |
| GB2104199A (en) * | 1981-07-25 | 1983-03-02 | Applegate G & Sons | Improvements relating to blowdown tanks |
| KR20070000619U (en) * | 2007-05-07 | 2007-05-28 | 박영수 | Boiler Continuous Blowdown System with Flow Measurement |
| CN201041345Y (en) * | 2007-05-09 | 2008-03-26 | 济南市压力容器厂 | Continuous blow-down expanding device with anti-grinding plate device |
| CN102519032A (en) * | 2011-12-30 | 2012-06-27 | 中冶长天国际工程有限责任公司 | Sewage drainage energy-saving flash tank |
| CN202973059U (en) * | 2012-12-20 | 2013-06-05 | 黑龙江龙煤矿业集团股份有限公司双鸭山分公司虹焱热电有限公司 | Novel periodic blowdown flash tank |
-
2013
- 2013-06-27 CN CN201310261276.0A patent/CN103353105B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261300A (en) * | 1978-12-26 | 1981-04-14 | Combustion Engineering, Inc. | Nuclear steam generator |
| GB2104199A (en) * | 1981-07-25 | 1983-03-02 | Applegate G & Sons | Improvements relating to blowdown tanks |
| KR20070000619U (en) * | 2007-05-07 | 2007-05-28 | 박영수 | Boiler Continuous Blowdown System with Flow Measurement |
| CN201041345Y (en) * | 2007-05-09 | 2008-03-26 | 济南市压力容器厂 | Continuous blow-down expanding device with anti-grinding plate device |
| CN102519032A (en) * | 2011-12-30 | 2012-06-27 | 中冶长天国际工程有限责任公司 | Sewage drainage energy-saving flash tank |
| CN202973059U (en) * | 2012-12-20 | 2013-06-05 | 黑龙江龙煤矿业集团股份有限公司双鸭山分公司虹焱热电有限公司 | Novel periodic blowdown flash tank |
Non-Patent Citations (1)
| Title |
|---|
| 张神举 等: "锅炉连排扩容器水位测量波动原因分析", 《能源与节能》, no. 11, 30 November 2011 (2011-11-30), pages 44 - 45 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669187A (en) * | 2022-04-07 | 2022-06-28 | 南京大学环境规划设计研究院集团股份公司 | Adjustable biological purification VOCs device |
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| CN103353105B (en) | 2015-11-04 |
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