CN208074932U - A kind of waste heat boiler deaerating plant - Google Patents
A kind of waste heat boiler deaerating plant Download PDFInfo
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- CN208074932U CN208074932U CN201820289324.5U CN201820289324U CN208074932U CN 208074932 U CN208074932 U CN 208074932U CN 201820289324 U CN201820289324 U CN 201820289324U CN 208074932 U CN208074932 U CN 208074932U
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- waste heat
- heat boiler
- oxygen
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Abstract
The utility model discloses a kind of waste heat boiler deaerating plants, belong to waste heat boiler technical field, to solve for water temperature is not up to standard after long-distance pipe transports after hot shop steam turbine decrease temperature and pressure, the halfway problem of waste heat boiler deoxygenation.Device includes oxygen-removing tower, deaerator storage tank, steam pipe, deaerator storage tank is equipped with below oxygen-removing tower, oxygen-removing tower and deaerator storage tank are all connected with steam pipe, further include level-one decrease temperature and pressure device and two level decrease temperature and pressure device, level-one decrease temperature and pressure device includes the first main line, first bypass line, first exhaust pipeline, first main line and the first bypass line are all connected with steam pipe, two level decrease temperature and pressure device includes the second main line, second bypass line, second exhaust pipeline, heating water tanks pipeline, second main line and the second bypass line connect oxygen-removing tower, heating water tanks piping connection deaerator storage tank.The utility model is simple in structure, simple operation, less investment, good economical benefit, easily promotes.
Description
Technical field
The utility model belongs to waste heat boiler technical field, and in particular to a kind of waste heat boiler deaerating plant.
Background technology
If containing oxygen in boiler feedwater, feedwater piping, boiler plant and Turbine Flow Path can be made to be corroded,
The service life for shortening equipment prevents from corroding most effective method being dissolved oxygen and the other gases removed in water, in addition, in heat exchange
Gas present in equipment can also interfere heat transfer, heat-transfer effect be reduced, so boiler feedwater must carry out deoxygenation.
Zinc abstraction waste heat boiler in process of production adopt by 850 DEG C -1100 DEG C of inlet temperature, 310 DEG C -370 DEG C of outlet temperature
The mode of deoxygenation is heated with steam, in the prior art, the heating steam of oxygen-eliminating device is sent to for hot shop steamer by waste heat boiler
On the superheat steam pipeline of machine, waste heat boiler oxygen-eliminating device is back to after pressure and temperature reducing, since distance farther out, is returned between workshop
The steam returned often can only be by oxygen-eliminating device water temperature heating between 86 DEG C -95 DEG C, and the design requirement of atmospheric type deaerator is 100
DEG C -110 DEG C, deoxygenation purpose is much not achieved in oxygen-eliminating device water temperature, is damaged to boiler tube bigger, makes the reduction of boiler service life,
And jet chimney is longer to increase fund input and maintenance difficulties.
Use new content
The purpose of this utility model is to provide a kind of waste heat boiler deaerating plants, to solve to cool down for hot shop steam turbine
Water temperature is not up to standard after long-distance pipe transports after decompression, the halfway problem of waste heat boiler deoxygenation.
In order to solve problem above, technical solutions of the utility model are：A kind of waste heat boiler deaerating plant, including deoxygenation
Tower, deaerator storage tank, steam pipe, oxygen-removing tower lower section are equipped with deaerator storage tank, and oxygen-removing tower and deaerator storage tank are all connected with steam pipe,
Further include level-one decrease temperature and pressure device and two level decrease temperature and pressure device, level-one decrease temperature and pressure device includes the first main line, first
Bypass line, first exhaust pipeline, the first main line and the first bypass line are all connected with steam pipe, two level decrease temperature and pressure device packet
Include the second main line, the second bypass line, second exhaust pipeline, heating water tanks pipeline, the second main line and the second bypass line
Connect oxygen-removing tower, heating water tanks piping connection deaerator storage tank.
Further, the first main line upper edge steam flow is equipped with pneumatic operated valve, reducing, gate valve successively.
Further, the first bypass line is equipped with shut-off valve.
Further, downtake pipe road is set there are two shut-off valve.
Further, the second main line upper edge steam flow is equipped with pneumatic operated valve, reducing, gate valve successively.
Further, the second bypass line is equipped with shut-off valve.
Further, heating water tanks pipeline upper edge steam flow is set successively there are two shut-off valve, reducing.
Further, second exhaust pipe road is set there are two shut-off valve.
Further, reducing changes from small to big along steam flow diameter.
The beneficial effects of the utility model are as follows：The oxygen-eliminating device water temperature that the utility model is directed to during oxygen-eliminating device use reaches
The problem of less than design requirement, in 152m2In zinc abstraction roaster system pipeline is directly installed additional on boiler main steam line,
On pipeline install level-one decrease temperature and pressure device steam is once depressured, by 400 DEG C of superheated steam pressure of waste heat boiler by
3.0MPa is down to 1.0Mpa, and two level decrease temperature and pressure device is installed before deaerating plant and carries out second of decompression to steam, heat is steamed
Steam pressure is down to 0.4Mpa by 1.0MPa, is re-fed into deaerating plant and is heated, and keeps deaerating plant water temperature up to standard, extends waste heat
Boiler service life, deaerating plant heating pipe length reduce fund input less than original 1/10th；It is set on main line
Pneumatic valve regulation steam flow and pressure, increase the convenience of waste heat boiler operation；Shut-off valve is set on bypass line, is conveniently opened
It closes, flow is easy to adjust quick；Shut-off valve there are two being set on gas exhaust piping, a preparation and a use, easy to exhaust；Reducing is along steam flow
Diameter changes from small to big, adiabatic expansion when steam being avoided to flow through valve opening；The utility model is simple in structure, simple operation, less investment, warp
Effect of helping is good, easily promotes.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of waste heat boiler deaerating plant.
Reference numeral is as follows：1, oxygen-removing tower；2, deaerator storage tank；3, steam pipe；41, the first main line；42, the first bypass
Pipeline；43, first exhaust pipeline；51, the second main line；52, the second bypass line；53, second exhaust pipeline；54, water tank adds
Pipe line.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of waste heat boiler deaerating plant, including oxygen-removing tower 1, deaerator storage tank 2, steam pipe 3, oxygen-removing tower
1 lower section is equipped with deaerator storage tank 2, and oxygen-removing tower 1 and deaerator storage tank 2 are all connected with steam pipe 3, further include level-one decrease temperature and pressure device
With two level decrease temperature and pressure device, level-one decrease temperature and pressure device includes the first main line 41, the first bypass line 42, downtake pipe
Road 43,41 upper edge steam flow of the first main line are equipped with pneumatic operated valve, reducing, gate valve successively, and the first bypass line 42, which is equipped with, to be cut
Only valve, sets that there are two shut-off valves on first exhaust pipeline 43, and the first main line 41 and the first bypass line 42 are all connected with steam pipe
3, two level decrease temperature and pressure device includes the second main line 51, the second bypass line 52, second exhaust pipeline 53, heating water tanks pipeline
54,51 upper edge steam flow of the second main line is equipped with pneumatic operated valve, reducing, gate valve successively, and the second bypass line 52 is equipped with cut-off
Valve is set on second exhaust pipeline 53 there are two shut-off valve, and 54 upper edge steam flow of heating water tanks pipeline sets that there are two cut-offs successively
Valve, reducing, reducing change from small to big along steam flow diameter, and the second main line 51 and the second bypass line 52 connect oxygen-removing tower 1, water
Case heats pipeline 54 and connects deaerator storage tank 2.
Each number of element types, material are shown in Table 1, table 2 in the present embodiment.
When operation, the steam flowed along steam pipe 3 first passes through level-one decrease temperature and pressure device, by 400 DEG C of overheats of waste heat boiler
Steam pressure is down to 1.0Mpa by 3.0MPa, and pneumatic valve regulation steam flow and pressure are set on the first main line 41, increases waste heat
The convenience of boiler attendance；Shut-off valve is set on first bypass line 42, facilitates folding, flow easy to adjust quick；First exhaust
Shut-off valve there are two being set on pipeline 43, a preparation and a use, easy to exhaust；Steam after level-one is depressured is using two level decrease temperature and pressure
Hot steam pressure is down to 0.4Mpa by 1.0MPa, pneumatic valve regulation steam flow and pressure is set on the second main line 51 by device 5
Power sets shut-off valve on the second bypass line 52, and steam is sent into oxygen-removing tower 1 after facilitating folding, pressure and temp to adjust, and second
Shut-off valve there are two being set on gas exhaust piping 53, a preparation and a use, easy to exhaust；Steam in heating water tanks pipeline 54 is sent into oxygen-eliminating device
In water tank 2, keep deaerating plant water temperature up to standard, extends waste heat boiler service life, deaerating plant heating pipe length is less than original
/ 10th come, reduce fund input.
Claims (9)
1. a kind of waste heat boiler deaerating plant, including oxygen-removing tower（1）, deaerator storage tank（2）, steam pipe（3）, the oxygen-removing tower
（1）Lower section is equipped with deaerator storage tank（2）, the oxygen-removing tower（1）And deaerator storage tank（2）It is all connected with steam pipe（3）, feature exists
In：Further include level-one decrease temperature and pressure device and two level decrease temperature and pressure device, the level-one decrease temperature and pressure device includes the first supervisor
Road（41）, the first bypass line（42）, first exhaust pipeline（43）, first main line（41）With the first bypass line（42）
It is all connected with steam pipe（3）, the two level decrease temperature and pressure device includes the second main line（51）, the second bypass line（52）, second
Gas exhaust piping（53）, heating water tanks pipeline（54）, second main line（51）With the second bypass line（52）Connect oxygen-removing tower
（1）, the heating water tanks pipeline（54）Connect deaerator storage tank（2）.
2. a kind of waste heat boiler deaerating plant as described in claim 1, it is characterised in that：First main line（41）Upper edge
Steam flow is equipped with pneumatic operated valve, reducing, gate valve successively.
3. a kind of waste heat boiler deaerating plant as claimed in claim 1 or 2, it is characterised in that：First bypass line
（42）It is equipped with shut-off valve.
4. a kind of waste heat boiler deaerating plant as claimed in claim 3, it is characterised in that：The first exhaust pipeline（43）On
If there are two shut-off valves.
5. a kind of waste heat boiler deaerating plant as claimed in claim 4, it is characterised in that：Second main line（51）Upper edge
Steam flow is equipped with pneumatic operated valve, reducing, gate valve successively.
6. a kind of waste heat boiler deaerating plant as claimed in claim 5, it is characterised in that：Second bypass line（52）On
Equipped with shut-off valve.
7. a kind of waste heat boiler deaerating plant as claimed in claim 6, it is characterised in that：The heating water tanks pipeline（54）On
Shut-off valve, reducing there are two being set successively along steam flow.
8. a kind of waste heat boiler deaerating plant as claimed in claim 7, it is characterised in that：The second exhaust pipeline（53）On
If there are two shut-off valves.
9. a kind of waste heat boiler deaerating plant as claimed in claim 8, it is characterised in that：The reducing is along steam flow diameter
Change from small to big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289324.5U CN208074932U (en) | 2018-03-01 | 2018-03-01 | A kind of waste heat boiler deaerating plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289324.5U CN208074932U (en) | 2018-03-01 | 2018-03-01 | A kind of waste heat boiler deaerating plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208074932U true CN208074932U (en) | 2018-11-09 |
Family
ID=64038392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820289324.5U Active CN208074932U (en) | 2018-03-01 | 2018-03-01 | A kind of waste heat boiler deaerating plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208074932U (en) |
-
2018
- 2018-03-01 CN CN201820289324.5U patent/CN208074932U/en active Active
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