CN205578729U - Boiler desulfurization seal air system - Google Patents
Boiler desulfurization seal air system Download PDFInfo
- Publication number
- CN205578729U CN205578729U CN201620263001.XU CN201620263001U CN205578729U CN 205578729 U CN205578729 U CN 205578729U CN 201620263001 U CN201620263001 U CN 201620263001U CN 205578729 U CN205578729 U CN 205578729U
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- pipeline
- desulfurization
- main line
- control valve
- air system
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Abstract
The utility model relates to a boiler desulfurization seal air system, belong to the boiler flue gas desulfurization technical field of system, which has the advantages of simple structure, high durability and convenient use, the boiler desulfurization seal air system that wind of adoption heat goes on sealing up to seal baffle, the technical scheme who adopts is connected with the main line through first pipeline for desulfurization sealing fan, be connected with seal air system on the main line, be provided with a three way connection between first pipeline and the main line, a three way connection still is connected with the second pipeline, be connected with reserve desulfurization sealing fan on the second pipeline, be provided with the first control valve on the first pipeline, be provided with the second control valve on the second pipeline, the main line still is connected with the third pipeline, connect through the 2nd three way connection between third pipeline and the main line, tuber pipe of third pipeline and heat is connected, be provided with check valve and pressure control valve on the third pipeline, the utility model discloses the desulfurization system who extensively is used for the boiler.
Description
Technical field
This utility model relates to a kind of boiler desulfurization enclosed air system, belongs to boiler flue gas desulfurization system technical field.
Background technology
Coal fired power plant flue gas desulfurization device is commonly used now bypass flue wet desulfurization of flue gas by limestone-gypsum method technology.When unit is properly functioning, desulphurization system import gas baffle and exiting flue gas baffle plate are shown in a fully open operation, and by-pass damper is in full off state, and now by-pass damper is sealed by sealing air.When desulphurization system breaks down, and unit remain a need for run time, by-pass damper is shown in a fully open operation, and desulphurization system import gas baffle and exiting flue gas baffle plate are in full off state, now by sealing air to import gas baffle and exiting flue gas guard seal, to ensure the normal service in desulphurization system.
Currently for the sealing of baffle plate, prior art mainly takes wind from air, by electric heater heat temperature raising, then boosted by desulfurization seal fan, be connected to gas baffle, give gas baffle sealing air.But the accident of desulfurization seal fan vibration damage motor frequently occurs, cause the desulphurization system cannot be properly functioning.
Utility model content
For solving the technical problem that prior art exists, this utility model provides a kind of simple in construction, easy to use, uses the boiler desulfurization enclosed air system that sealing baffle is sealed by heat primary air.
For achieving the above object, the technical scheme that this utility model is used is boiler desulfurization enclosed air system, including desulfurization seal fan and enclosed air system, described desulfurization seal fan is connected with main line by the first pipeline, connect on described main line and have enclosed air system, it is provided with the first three way cock between described first pipeline and main line, described first three way cock is also associated with the second pipeline, connect on described second pipeline and have standby desulfurization seal fan, it is provided with the first control valve on described first pipeline, the second control valve it is provided with on second pipeline, described main line is also associated with the 3rd pipeline, connected by the second three way cock between described 3rd pipeline and main line, described 3rd pipeline is connected with heat primary air pipe, it is provided with non-return valve and pressure-control valve on described 3rd pipeline.
Preferably, also include main control unit, being provided with pressure transducer and Pressure gauge on described main line, described desulfurization seal fan, standby desulfurization seal fan, primary air fan, the first control valve are all connected with main control unit with the second control valve, and described main control unit is provided with display screen.
Compared with prior art, this utility model has following technical effect that this utility model simple in construction, easy to use, use heat primary air that sealing air baffle plate is sealed, disable desulfurization seal fan, reduce station service power consumption rate, reduce desulfurization seal fan maintenance cost, be effectively saved cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As shown in Figure 1, boiler desulfurization enclosed air system, including desulfurization seal fan 1 and enclosed air system 2, desulfurization seal fan 1 is connected with main line 4 by the first pipeline 3, connect on main line 4 and have enclosed air system 2, the first three way cock 5 it is provided with between first pipeline 3 and main line 4, first three way cock 5 is also associated with the second pipeline 6, connect on second pipeline 6 and have standby desulfurization seal fan 7, the first control valve 8 it is provided with on first pipeline 3, the second control valve 9 it is provided with on second pipeline 6, main line 4 is also associated with the 3rd pipeline 10, connected by the second three way cock 11 between 3rd pipeline 10 and main line 4, 3rd pipeline 10 is connected with heat primary air pipe 12, non-return valve 13 and pressure-control valve 18 it is provided with on 3rd pipeline 10.
Wherein, also include main control unit 14, pressure transducer 17 and Pressure gauge 15 it is provided with on main line 4, desulfurization seal fan 1, standby desulfurization seal fan the 7, first control valve the 8, second control valve 9, pressure transducer 14 are all connected with main control unit 14 with Pressure gauge 15, and main control unit 14 is provided with display screen 16.
When specifically used, using heat primary air to replace desulfurization seal fan to be operated, pressure-control valve adjusts pipeline internal gas pressure, ensure that air pressure is generally kept in 10 more than Kpa, thus disable desulfurization seal fan, reduce station service power consumption rate, reduce desulfurization seal fan maintenance cost, be effectively saved cost.
Pressure transducer 14 is for the pressure of monitoring main line in real time, Pressure gauge 15 is for the pressure value of display main line in real time, and force value is shown in real time on main control unit, when the force value of main line is less than 5Kpa, main control unit controls open the first control valve and start desulfurization seal fan, seals desulfurization road system.If operating desulfurization seal fan emergency stop valve trip, main control unit controls to open the second control valve and standby desulfurization seal fan, it is ensured that the safe operation of desulphurization system.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, in the range of all should wrapping in this utility model.
Claims (2)
1. boiler desulfurization enclosed air system, it is characterized in that: include desulfurization seal fan and enclosed air system, described desulfurization seal fan is connected with main line by the first pipeline, connect on described main line and have enclosed air system, it is provided with the first three way cock between described first pipeline and main line, described first three way cock is also associated with the second pipeline, connect on described second pipeline and have standby desulfurization seal fan, it is provided with the first control valve on described first pipeline, the second control valve it is provided with on second pipeline, described main line is also associated with the 3rd pipeline, connected by the second three way cock between described 3rd pipeline and main line, described 3rd pipeline is connected with heat primary air pipe, it is provided with non-return valve and pressure-control valve on described 3rd pipeline.
Boiler desulfurization enclosed air system the most according to claim 1, it is characterized in that: also include main control unit, pressure transducer and Pressure gauge it is provided with on described main line, described desulfurization seal fan, standby desulfurization seal fan, primary air fan, the first control valve are all connected with main control unit with the second control valve, and described main control unit is provided with display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620263001.XU CN205578729U (en) | 2016-03-31 | 2016-03-31 | Boiler desulfurization seal air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620263001.XU CN205578729U (en) | 2016-03-31 | 2016-03-31 | Boiler desulfurization seal air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578729U true CN205578729U (en) | 2016-09-14 |
Family
ID=56867887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620263001.XU Active CN205578729U (en) | 2016-03-31 | 2016-03-31 | Boiler desulfurization seal air system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578729U (en) |
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2016
- 2016-03-31 CN CN201620263001.XU patent/CN205578729U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |