CN206935544U - A kind of coal pulverizer primary wind heating system - Google Patents
A kind of coal pulverizer primary wind heating system Download PDFInfo
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- CN206935544U CN206935544U CN201720621976.XU CN201720621976U CN206935544U CN 206935544 U CN206935544 U CN 206935544U CN 201720621976 U CN201720621976 U CN 201720621976U CN 206935544 U CN206935544 U CN 206935544U
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- air heater
- pipeline
- coal pulverizer
- hydrophobic
- switch
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Abstract
The utility model provides a kind of coal pulverizer primary wind heating system；Including coal pulverizer, hydrophobic pipeline, heating pipeline, hydrophobic pipeline is connected with the coal pulverizer, the heating pipeline is in parallel with hydrophobic pipeline, steam air heater is installed on the heating pipeline, enters vapour switch, First air heater switch, drain valve, regulating valve are installed on the heating pipeline, hydrophobic pipeline, the steam air heater, enter vapour switch, First air heater switch, regulating valve by controlling its control.The utility model shorten oil gun put into operation the time reduce fuel consumption；Increase hot blast air intake pneumatic door of coal pulverizer and regulation door bypass duct；Hot blast temperature of mill entrance can be quickly improved, accelerates grinding machine toggle speed；Hot blast steam air heater import increases manually operated door, and increases steam air heater drain water piping and valve, is easy to cold conditions hydrophobic to steam air heater heating coil when starting shooting, to improve steam air heater temperature.
Description
Technical field
It the utility model is related to a kind of coal pulverizer primary wind heating system.
Background technology
Air heating device of coal pulverizer, starting coal pulverizer during each cold start will reach when heat primary air temperature
A coal pulverizers could be started to more than 150 DEG C, the stand-by period is long, causes oil consumption to increase, and is unfavorable for boiler economic operation.
After coal pulverizer heat primary air pipeline installs bypass steam air heater additional, in cold start, after primary air fan startup just
Hot air duct of coal pulverizer can be opened and enter coal pulverizer after steam air heater heats, warm mill speed can be quickly improved, enter
And quickly starting the consumed amount of fuel of coal pulverizer boiler heating boosting will greatly reduce.Cold conditions start to a certain extent is saved
Substantial amounts of fuel oil, improves the economical index of boiler.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of coal pulverizer primary wind heating system, one kind mill
Coal machine primary wind heating system passes through
The utility model is achieved by the following technical programs.
A kind of coal pulverizer primary wind heating system provided by the utility model；Including coal pulverizer, hydrophobic pipeline, heating tube
Road, hydrophobic pipeline is connected with the coal pulverizer, the heating pipeline is in parallel with hydrophobic pipeline, and described heat is provided with pipeline
Steam air heater, enter vapour switch, First air heater switch, drain valve, regulating valve, institute are installed on the heating pipeline, hydrophobic pipeline
State steam air heater, enter vapour switch, First air heater switch, regulating valve by controlling its control.
The steam air heater is also connected with auxiliary vapor pipeline, aids in being provided with auxiliary steam source switch on vapor pipeline.
Flowmeter is additionally provided with the drain valve.
A kind of primary wind heating system operation method, comprises the following steps：
A, system operation；
B, controller is controlled to switch into vapour and opened, and coal pulverizer is opened；
C, hydrophobic amount is transferred to controller by flowmeter in drain valve, and controller is to transmission signal and preset value are compared
It is right；
D, when the signal value that controller compares exceeds values, First air heater switch is opened, passes through First air
Coal pulverizer is being fed after steam air heater；
E, hydrophobic amount is transferred to controller by flowmeter in drain valve, and controller is to transmission signal and preset value are compared
It is right；
F, when the signal value that controller compares exceeds values, auxiliary steam source switch is opened, makes one in steam air heater
Secondary wind initial temperature improves.
The beneficial effects of the utility model are：1st, in order to improve grinding machine First air hot blast temperature rapidly when cold conditions is started shooting,
Accelerate grinding machine toggle speed, shorten oil gun put into operation the time reduce fuel consumption.Increase hot blast air intake pneumatic door of coal pulverizer and tune
Section door bypass duct；
2nd, a hot blast steam air heater is increased on this pipeline, vapour source is derived from auxiliary steam header, and steam air heater import increase is adjusted
Door, outlet increase pneumatic door, in start using auxiliary vapour header steam heating mill entrance First air, can quickly improve grinding machine and enter
Hot blast temperature of mouth, accelerates grinding machine toggle speed；
3rd, hot blast steam air heater import increase manually operated door, and increase steam air heater drain water piping and valve, it is easy to cold conditions to open
It is hydrophobic to steam air heater heating coil during machine, to improve steam air heater temperature.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is control flow chart of the present utility model；
In figure：1- coal pulverizers, 2- steam air heaters, 3- enter vapour and switched, 4- First air heater switch, 5- drain valves, 6- regulating valves,
7- auxiliary steam sources switch, 8- hydrophobic pipelines, 9- heating pipelines, 10- auxiliary vapor pipelines.
Embodiment
Be described further below the technical solution of the utility model, but claimed scope be not limited to it is described.
A kind of coal pulverizer primary wind heating system；Including coal pulverizer 1, hydrophobic pipeline 8, heating pipeline 9, the coal pulverizer 1
On be connected with hydrophobic pipeline 8, the heating pipeline 9 is in parallel with hydrophobic pipeline 8, it is described heat be provided with pipeline 9 steam air heater 2,
Enter vapour switch 3, First air heater switch 4, drain valve 5, regulating valve 6 are installed on the heating pipeline 9, hydrophobic pipeline 8, it is described
Steam air heater 2, enter vapour switch 3, First air heater switch 4, regulating valve 6 by controlling its control.
The steam air heater 2 is also connected with auxiliary vapor pipeline 10, aids in being provided with auxiliary steam source switch 7 on vapor pipeline 10.
Flowmeter is additionally provided with the drain valve 5.
A kind of primary wind heating system operation method, comprises the following steps：
A, system operation；
B, controller is controlled to switch into vapour and opened, and coal pulverizer is opened；
C, hydrophobic amount is transferred to controller by flowmeter in drain valve, and controller is to transmission signal and preset value are compared
It is right；
D, when the signal value that controller compares exceeds values, First air heater switch is opened, passes through First air
Coal pulverizer is being fed after steam air heater；
E, hydrophobic amount is transferred to controller by flowmeter in drain valve, and controller is to transmission signal and preset value are compared
It is right；
F, when the signal value that controller compares exceeds values, auxiliary steam source switch is opened, makes one in steam air heater
Secondary wind initial temperature improves.
Claims (3)
- A kind of 1. coal pulverizer primary wind heating system, it is characterised in that：Including coal pulverizer (1), hydrophobic pipeline (8), heating pipeline (9) hydrophobic pipeline (8), is connected with the coal pulverizer (1), the heating pipeline (9) is in parallel with hydrophobic pipeline (8), described to add Steam air heater (2) is installed on pipe line (9), enters vapour switch (3), First air heater switch (4), the heating pipeline (9), hydrophobic Drain valve (5), regulating valve (6) are installed on pipeline (8), the steam air heater (2), enter vapour switch (3), First air heater switch (4), regulating valve (6) is by controlling its control.
- A kind of 2. coal pulverizer primary wind heating system as claimed in claim 1, it is characterised in that：The steam air heater (2) also with Vapor pipeline (10) connection is aided in, auxiliary steam source switch (7) is installed on auxiliary vapor pipeline (10).
- A kind of 3. coal pulverizer primary wind heating system as claimed in claim 1, it is characterised in that：On the drain valve (5) also It is provided with flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621976.XU CN206935544U (en) | 2017-05-31 | 2017-05-31 | A kind of coal pulverizer primary wind heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621976.XU CN206935544U (en) | 2017-05-31 | 2017-05-31 | A kind of coal pulverizer primary wind heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206935544U true CN206935544U (en) | 2018-01-30 |
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ID=61362474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720621976.XU Active CN206935544U (en) | 2017-05-31 | 2017-05-31 | A kind of coal pulverizer primary wind heating system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206935544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159431A (en) * | 2017-05-31 | 2017-09-15 | 大唐贵州发耳发电有限公司 | A kind of coal pulverizer primary wind heating system and its operation method |
-
2017
- 2017-05-31 CN CN201720621976.XU patent/CN206935544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159431A (en) * | 2017-05-31 | 2017-09-15 | 大唐贵州发耳发电有限公司 | A kind of coal pulverizer primary wind heating system and its operation method |
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