CN201935164U - Continuous blowdown expander - Google Patents
Continuous blowdown expander Download PDFInfo
- Publication number
- CN201935164U CN201935164U CN2011200390644U CN201120039064U CN201935164U CN 201935164 U CN201935164 U CN 201935164U CN 2011200390644 U CN2011200390644 U CN 2011200390644U CN 201120039064 U CN201120039064 U CN 201120039064U CN 201935164 U CN201935164 U CN 201935164U
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- China
- Prior art keywords
- expander
- housing
- continuous blowdown
- steam
- boiler
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- Expired - Lifetime
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
A continuous blowdown expander comprises an expander shell, a steam exhaust outlet is arranged at the upper end of the expander shell, a water drainage outlet is arranged at the lower end of the expander shell, a steam-water separator is arranged in the expander shell and arranged below the steam exhaust outlet, a drum partition is arranged in the middle of the expander shell, and a sewage inlet is arranged on the drum partition and extends out of the expander shell. The continuous blowdown expander can separate secondary steam and waste hot water from sewage in a boiler by means of adiabatic expansion, the secondary steam is led out from the steam exhaust outlet, and the waste hot water is drained out automatically from the water drainage outlet, so that partial heat lost from the boiler can be recovered and efficiency of the boiler can be improved.
Description
Technical field
The utility model relates to boiler blow-off equipment, especially relates to a kind of continuous blowdown expander.
Background technology
In the running of boiler, the feedwater that enters drum always has certain salinity, and after carrying out dosing in the pot and handling, the fouling tendency material of pot water changes grain slag into, and this outer pot aqueous corrosion metal also will produce some corrosion products.Therefore, contain various solubilities and insoluble impurities in pot water, in boiler operatiopn, these impurity have only seldom partly to be taken away by steam, and the overwhelming majority is stayed in pot water, and along with the continuous evaporation of pot water, these impurity concentrations increase gradually.Pot water impurity concentration is excessive, not only influences steam quality, but also can cause the fouling and the corrosion of heating surface, influences safe operation of the boiler.In order to control boiler water quality, must carry out boiler blow-off, the pot water that is polluted by salt matter and grain slag with discharge section, and replenish with clear feedwater.
Boiler blow-off divides two kinds of continuous blowdown and periodical blowdowns.
The purpose of continuous blowdown is to discharge the part salt that dissolves in the pot water, to keep pot a water certain salt content amount and a basicity.This blowdown is to discharge from the evaporating surface of pot water salt concentration maximum continuously, claims surface blow-off again.
The periodical blowdown purpose is to discharge insoluble grain slag in the pot water, therefore assembles maximum water-cooling wall lower collecting box from deposit and discharges.Blowing time is interrupted, and blanking time and blowdown flow rate should be determined according to the requirement of carbonated drink quality.
The utility model content
The purpose of this utility model is the part heat that is to provide a kind of recyclable boiler emission loss, improves the continuous blowdown expander of boiler efficiency.
The utility model is that the technical scheme that its technical problem of solution is adopted is,
The continuous blowdown expander, comprise the expander housing, the upper end of described expander housing is provided with steam drain, the lower end is provided with discharge outlet, also be provided with steam-water separator in the expander housing, this steam-water separator is positioned at the steam drain below, and the middle part is provided with the cylinder dividing plate in the expander housing, the cylinder dividing plate is provided with the sewer import, and the expander hull outside is stretched out in this sewer import.
Described expander housing top is provided with the relief valve connection that is used to connect safety valve.
Described expander housing top is provided with the Pressure gauge that shows expander enclosure interior pressure.
Described expander housing is provided with the manhole that passes through for the maintenance personal.
Described expander hull outside is provided with the ear cribbing of fixed expansion device housing.
Described expander lower housing portion is provided with draining and regulates mouth.
Described expander lower housing portion is provided with the water level interface that is used to connect the water level meter.
The beneficial effects of the utility model are, this continuous blowdown expander will be separated into indirect steam and spent hot water from the sewer adiabatic expansion of boiler, and indirect steam is drawn by steam drain, and the spent hot water drains automatically by discharge outlet, the part heat of recyclable boiler emission loss improves boiler efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model continuous blowdown expander.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.
As shown in Figure 1, the continuous blowdown expander that the utility model proposes comprises expander housing 100, the upper end of described expander housing 100 is provided with steam drain 110, the lower end is provided with discharge outlet 120, also be provided with steam-water separator 111 in expander housing 100, this steam-water separator 111 is positioned at steam drain 110 belows, and the middle part is provided with cylinder dividing plate 130 in the expander housing 100, cylinder dividing plate 130 is provided with sewer import 131, and expander housing 100 outsides are stretched out in this sewer import 131.
In the present embodiment, expander housing 100 tops are provided with and are used to connect the relief valve connection 112 of safety valve and the Pressure gauge 113 that shows expander enclosure interior pressure is arranged.For ease of maintenance personal's maintenance, expander housing 100 is provided with the manhole 102 that passes through for the maintenance personal.
Described expander housing 100 outer setting have the ear cribbing 101 of fixed expansion device housing.
Described expander housing 100 bottoms are provided with draining and regulate mouth 121.
In addition, described expander housing 100 bottoms also are provided with the water level interface 122 that is used to connect the water level meter.
Boiler blowdown water enters the continuous blowdown expander continuously uniformly, sewer is done tangential motion in the cylinder dividing plate, and be vaporized into indirect steam immediately, after the steam-water separator of steam process expander housing internal upper part carried out the carbonated drink separation, the sewer that stays was then regulated a mouthful discharge by discharge outlet or draining.
This continuous blowdown expander will be separated into indirect steam and spent hot water from the sewer adiabatic expansion of boiler, and indirect steam is drawn by steam drain, and the spent hot water drains by discharge outlet, and the part heat of recyclable boiler emission loss improves boiler efficiency.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. continuous blowdown expander, comprise the expander housing, it is characterized in that, the upper end of described expander housing is provided with steam drain, and the lower end is provided with discharge outlet, also is provided with steam-water separator in the expander housing, this steam-water separator is positioned at the steam drain below, the middle part is provided with the cylinder dividing plate in the expander housing, and the cylinder dividing plate is provided with the sewer import, and the expander hull outside is stretched out in this sewer import.
2. continuous blowdown expander according to claim 1 is characterized in that, described expander housing top is provided with the relief valve connection that is used to connect safety valve.
3. continuous blowdown expander according to claim 1 is characterized in that, described expander housing top is provided with the Pressure gauge that shows expander enclosure interior pressure.
4. continuous blowdown expander according to claim 1 is characterized in that, described expander housing is provided with manhole.
5. continuous blowdown expander according to claim 1 is characterized in that, described expander hull outside is provided with the ear cribbing of fixed expansion device housing.
6. continuous blowdown expander according to claim 1 is characterized in that, described expander lower housing portion is provided with draining and regulates mouth.
7. continuous blowdown expander according to claim 1 is characterized in that, described expander lower housing portion is provided with the water level interface that is used to connect the water level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200390644U CN201935164U (en) | 2011-02-09 | 2011-02-09 | Continuous blowdown expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200390644U CN201935164U (en) | 2011-02-09 | 2011-02-09 | Continuous blowdown expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935164U true CN201935164U (en) | 2011-08-17 |
Family
ID=44446683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200390644U Expired - Lifetime CN201935164U (en) | 2011-02-09 | 2011-02-09 | Continuous blowdown expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201935164U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349854A (en) * | 2013-06-27 | 2013-10-16 | 常熟市高压容器制造有限公司 | Drain flash tank for heavy oil heater |
| CN104235824A (en) * | 2014-09-25 | 2014-12-24 | 无锡纳润特科技有限公司 | Tangential sewage dispersing device of boiler sewage discharging expander |
-
2011
- 2011-02-09 CN CN2011200390644U patent/CN201935164U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349854A (en) * | 2013-06-27 | 2013-10-16 | 常熟市高压容器制造有限公司 | Drain flash tank for heavy oil heater |
| CN103349854B (en) * | 2013-06-27 | 2015-05-13 | 常熟市高压容器制造有限公司 | Drain flash tank for heavy oil heater |
| CN104235824A (en) * | 2014-09-25 | 2014-12-24 | 无锡纳润特科技有限公司 | Tangential sewage dispersing device of boiler sewage discharging expander |
| CN104235824B (en) * | 2014-09-25 | 2016-02-03 | 无锡纳润特科技有限公司 | The tangential sewage dispersal device of boiler blow-off expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |