CN203375428U - Continuous blowdown flash tank - Google Patents
Continuous blowdown flash tank Download PDFInfo
- Publication number
- CN203375428U CN203375428U CN201320374183.4U CN201320374183U CN203375428U CN 203375428 U CN203375428 U CN 203375428U CN 201320374183 U CN201320374183 U CN 201320374183U CN 203375428 U CN203375428 U CN 203375428U
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- flash tank
- continuous blowdown
- blowdown flash
- cylindrical shell
- tank according
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Abstract
The utility model provides a continuous blowdown flash tank. The continuous blowdown flash tank comprises a vertical tank body, wherein a blowdown water inlet and a manhole are formed in the tank body, a liquid level measuring device, a thermometer and a pressure sampling pipe are further arranged on the tank body, a pressure meter and a decompression valve are arranged on the pressure sampling pipe, a top plate is arranged above the blowndown water inlet, a baffle which extends downwards is connected to the top plate, the two sides of the baffle are connected with the inner wall of the tank body, the top plate and the baffle completely cover the blowndown water inlet, and a wear-resistant plate is further arranged on the portion, below the blowndown water inlet, of the inner wall of the tank body. According to the further improvement of the continuous blowdown flash tank, the liquid level measuring device is a magnetic flap liquid level meter, and the pressure sampling pipe is a stainless steel pipe. Compared with the prior art, the continuous blowdown flash tank is more accurate in liquid level measurement and pressure measurement and longer in service life.
Description
Technical field
The utility model relates to a kind of boiler blow-off wetting system, especially relates to a kind of water of the continuous blowdown by boiler and carries out the dilatation step-down to carry out the continuous blowdown flash tank of steam separation.
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 rotation that inwall forms and under, due to 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, through the gland steam exhauster of the steam-water separator on end socket top, enter atmosphere.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 defect in use in the continuous blowdown flash tank of prior art: on the one hand, have level gauging inaccuracy, the coarse defect of pressure measxurement; On the other hand, the water inlet current are injected rear rotation and lower impact cylinder inboard wall, and cylindrical shell easily weares and teares, and causes product not long defect in service life.
Summary of the invention
In order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of level gauging and pressure measxurement is more accurate, the continuous blowdown flash tank of product longer service life.
In order to achieve the above object, the utility model 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 described cylindrical shell, thermometer and pressure samples pipe, described pressure samples pipe is provided with pressure gauge and relief valve, 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 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, described sewer import is with also being provided with wearing plate on the cylinder inboard wall of side-lower.
Preferably, described wearing plate at least covers 1/3rd of the inwall girth of described cylindrical shell below described sewer import in a circumferential direction.
More preferably, described wearing plate be take the vertical curve at place, center of described sewer import and is that symmetrical centre alignment bilateral symmetry is extended and covers.
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 wearing plate after being back on inwall after can making water that the sewer import is sprayed be 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 defect of consequent pressure measxurement.Use stainless steel tube as the pressure samples pipe, pressure measxurement is more accurate.
Owing to adopting technique scheme, compared to prior art, a kind of continuous blowdown flash tank level gauging and pressure measxurement that the utility model provides are more accurate, longer service life.
The accompanying drawing explanation
The front view that Fig. 1 is the utility model continuous blowdown flash tank.
The top view that Fig. 2 is the utility model continuous blowdown flash tank.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model preferred embodiment is elaborated.
Refer to Fig. 1 and Fig. 2, the utility model provides a kind of continuous blowdown flash tank, comprise vertical cylindrical shell 1, described cylindrical shell 1 is provided with has sewer import 2 and the manhole 3 of taking over 21, also be provided with liquid level emasuring device 4, thermometer 5 and pressure samples pipe 6 on described cylindrical shell 1, described pressure samples pipe 6 is provided with pressure gauge 7 and relief valve 8.The interior top of described cylindrical shell 1 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 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 be take the vertical curve at place, center of described sewer import 2 and is that symmetrical centre alignment bilateral symmetry extends 1/3rd of the inwall girth that covers described sewer import 2 belows.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 wearing plate 12 after being back on inwall after the water that can make sewer import 2 spray is stopped by baffle plate 10.
Described wearing plate 12 in the vertical directions at least cover 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.Distance from the center of sewer import 2 to the low head junction of cylindrical shell 1 is h1+h2+h3=100mm+800mm+400mm, i.e. 1.3mm.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 fully from the center of described sewer import 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 defect of consequent pressure measxurement.Use stainless steel tube as the pressure samples pipe, pressure measxurement is more accurate.
Above-described embodiment is only explanation technical conceive of the present utility model and characteristics; its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (9)
1. a 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 described cylindrical shell, thermometer and pressure samples pipe, described pressure samples pipe is provided with pressure gauge and relief valve, 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 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, 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 at least covers 1/3rd of the inwall girth of described cylindrical shell below described sewer import in a circumferential direction.
3. a kind of continuous blowdown flash tank according to claim 1 is characterized in that: it is that symmetrical centre alignment bilateral symmetry is extended and covered that described wearing plate be take the vertical curve at place, described sewer import center.
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 the described a kind of continuous blowdown flash tank of claim 1 to 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 |
|---|---|---|---|
| CN201320374183.4U CN203375428U (en) | 2013-06-27 | 2013-06-27 | Continuous blowdown flash tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320374183.4U CN203375428U (en) | 2013-06-27 | 2013-06-27 | Continuous blowdown flash tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203375428U true CN203375428U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320374183.4U Expired - Fee Related CN203375428U (en) | 2013-06-27 | 2013-06-27 | Continuous blowdown flash tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203375428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633642A (en) * | 2015-02-02 | 2015-05-20 | 吉首大学 | Magnetic limescale sweeping water flushing type boiler device |
-
2013
- 2013-06-27 CN CN201320374183.4U patent/CN203375428U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633642A (en) * | 2015-02-02 | 2015-05-20 | 吉首大学 | Magnetic limescale sweeping water flushing type boiler device |
| CN104633642B (en) * | 2015-02-02 | 2016-06-01 | 吉首大学 | Magnetic force sweeps dirt flush-type steam generating plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20190627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |