CN207247264U - The air quantity and coal dust amount distribution regulating device of a kind of baffle automatic adjustment - Google Patents
The air quantity and coal dust amount distribution regulating device of a kind of baffle automatic adjustment Download PDFInfo
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- CN207247264U CN207247264U CN201720449738.5U CN201720449738U CN207247264U CN 207247264 U CN207247264 U CN 207247264U CN 201720449738 U CN201720449738 U CN 201720449738U CN 207247264 U CN207247264 U CN 207247264U
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Abstract
The utility model discloses the air quantity and coal dust amount distribution regulating device of a kind of automatic adjustment of baffle, including host computer, housing, first jiao of stroke pneumatic actuator, second jiao of stroke pneumatic actuator, dilute phase controllable register axis, concentrated phase controllable register axis, concentrated phase controllable register, dilute phase controllable register, the first signal source, secondary signal source, the first controller and second controller, the inside of housing is divided into concentrated phase space and dilute phase space, the output terminal of host computer is connected with the first signal source and secondary signal source, which can realize that air quantity and coal dust amount are accurately distributed automatically.
Description
Technical field
It the utility model is related to a kind of distribution regulating device, and in particular to a kind of air quantity and coal dust amount of baffle automatic adjustment
Distribute regulating device.
Background technology
The application of modern considerable coal-fired boiler unit pulverized-coal system is fairly common, each burner of unit pulverized-coal system
One of an important factor for being decision Combustion Operation of Boilers whether primary wind and powder is evenly distributed.The First air of each burner of reasonable disposition
Speed and coal powder density are to ensure boiler controller system safety, the essential condition of economical operation, and low NOxWhat combustion technology was smoothly implemented
Precondition.
Wind powder distribution between each burner is uneven, will directly affect catching fire and surely firing for burner outlet breeze airflow, makes
Into eccentricity of fire, wash away furnace wall, furnace load and Temperature Deviation, NOXDischarge capacity increase, can also cause coal dust in horizontal pipe
Deposition, causes plugging, causes corresponding burner to burn out, or even causes local reduction atmosphere strong and produce heating surface localized hyperthermia
The problems such as corrosion or coking, booster, it drastically influence the security and economy of unit operation.Because of primary wind and powder distribution inequality
Cause the example that boiler is not normally functioning too numerous to enumerate.In the feelings that unit undertakes peak regulation task and environmental requirement is increasingly stringenter
Under condition, wind powder distributing uniformity is more particularly important.To medium-speed pulverizer unit pulverized-coal system, with each primary air piping of layer burner
Between coal dust and air should evenly distribute, its air quantity difference be not more than ± 5%, coal powder distribation deviation be not more than ± 10%.But
Existing a variety of air quantity, coal dust amount distributor cannot reach this requirement, with less what is automatically adjusted according to deviation situation
Function.
Utility model content
The purpose of the utility model is to overcome the shortcomings that the above-mentioned prior art, there is provided a kind of baffle automatic adjustment
Air quantity and coal dust amount distribution regulating device, the device can realize that air quantity and coal dust amount are accurately distributed automatically.
To reach above-mentioned purpose, the air quantity and coal dust amount distribution regulating device of baffle automatic adjustment described in the utility model
Including host computer, housing, first jiao of stroke pneumatic actuator, second jiao of stroke pneumatic actuator, dilute phase controllable register axis, concentrated phase
Controllable register axis, concentrated phase controllable register, dilute phase controllable register, the first signal source, secondary signal source, the first controller and the second control
Device processed, the inside of housing are divided into concentrated phase space and dilute phase space, the output terminal of host computer and the first signal source and secondary signal source
It is connected；
The output shaft of first jiao of stroke pneumatic actuator is connected with one end of dilute phase controllable register axis, dilute phase controllable register
The one side of the other end of axis through dilute phase space is connected after extending into dilute phase space with the another side of dilute phase space, dilute
Phase controllable register is connected with dilute phase controllable register axis, and the output terminal of the first signal source is connected with the input terminal of the first controller
Connect, the output terminal of the first controller is connected with the compressed gas control terminal of first jiao of stroke pneumatic actuator；
The output shaft of second jiao of stroke pneumatic actuator is connected with one end of concentrated phase controllable register axis, concentrated phase controllable register
The one side in the other end of axis through concentrated phase space is connected after extending into concentrated phase space with the another side in concentrated phase space, dense
Phase controllable register is connected with concentrated phase controllable register axis, and the output terminal in secondary signal source is connected with the input terminal of second controller
Connect, the output terminal of second controller is connected with the compressed gas control terminal of second jiao of stroke pneumatic actuator.
The first detector of the rotational angle for detecting dilute phase controllable register axis is further included, wherein, the first detector
Output terminal is connected with the first signal source.
The second detector of the rotational angle for detecting concentrated phase controllable register axis is further included, wherein, the second detector
Output terminal is connected with secondary signal source.
The size in concentrated phase space is less than the size of dilute phase space.
The utility model has the advantages that：
The air quantity and coal dust amount of baffle automatic adjustment described in the utility model distribute regulating device in concrete operations, coal
Powder enrichment facility output coal dust concentrated phase air-flow enter in concentrated phase space, Pulverized Coal Concentration device output coal dust dilute-phase pneumatic flow into
Enter into dilute phase space, the flow of coal dust concentrated phase air-flow in burner is entered by adjusting the adjusting of concentrated phase controllable register, is passed through
Adjust dilute phase controllable register and adjust the amount for entering coal dust dilute-phase pneumatic flow in burner, so as to fulfill to burner pulverized coal feed pipe
The accurate control of coal dust amount and air quantity.Meanwhile in the utility model dilute phase controllable register and concentrated phase controllable register respectively by first
Angle stroke pneumatic actuator and second jiao of stroke pneumatic actuator are controlled, therefore to coal dust dilute-phase pneumatic flow and coal dust concentrated phase gas
Stream is adjusted respectively, does not interfere with each other mutually, substantially improves the partition characteristic of unit pulverized-coal system primary wind and powder, substantially eliminates big
The capacity coal-burning boiler various problems related with primary wind and powder partition characteristic, effectively raise the security and warp of unit operation
Ji property, has important social benefit and technical economic benefit, and simple in structure, and easy to operate, practicality is extremely strong.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Wherein, 1 it is housing, 2 be dilute phase controllable register, 3 be dilute phase controllable register axis, 4 is that first jiao of stroke pneumatic performs
Device, 5 be second jiao of stroke pneumatic actuator, 6 be the first controller, 7 be the first signal source, 8 be second controller, 9 be second
Signal source, 10 be concentrated phase controllable register axis, 11 be concentrated phase controllable register.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the air quantity and coal dust amount distribution regulating device of baffle automatic adjustment described in the utility model are including upper
Position machine, 1, first jiao of housing, 4, second jiaos of stroke pneumatic actuator stroke pneumatic actuator 5, dilute phase controllable register axis 3, concentrated phase tune
Save damper shaft 10, concentrated phase controllable register 11, dilute phase controllable register 2, the first signal source 7, secondary signal source 9, the first controller 6 and
Second controller 8, the inside of housing 1 are divided into concentrated phase space and dilute phase space, the output terminal of host computer and the first signal source 7 and
Binary signal source 9 is connected；The output shaft of first jiao of stroke pneumatic actuator 4 is connected with one end of dilute phase controllable register axis 3, dilute
The one side of the other end of phase controllable register axis 3 through dilute phase space extend into rear and dilute phase space opposite side in dilute phase space
Face is connected, and dilute phase controllable register 2 is connected with dilute phase controllable register axis 3, the output terminal and the first controller of the first signal source 7
6 input terminal is connected, the compressed gas control terminal phase of the output terminal of the first controller 6 and first jiao of stroke pneumatic actuator 4
Connection；The output shaft of second jiao of stroke pneumatic actuator 5 is connected with one end of concentrated phase controllable register axis 10, concentrated phase controllable register
The one side in the other end of axis 10 through concentrated phase space is connected after extending into concentrated phase space with the another side in concentrated phase space,
Concentrated phase controllable register 11 is connected with concentrated phase controllable register axis 10, the output terminal in secondary signal source 9 and the input of second controller 8
End is connected, and the output terminal of second controller 8 is connected with the compressed gas control terminal of second jiao of stroke pneumatic actuator 5.
The utility model further includes the first detector of the rotational angle for detecting dilute phase controllable register axis 3, wherein, the
The output terminal of one detector is connected with the first signal source 7；The utility model is further included for detecting concentrated phase controllable register axis 10
Rotational angle the second detector, wherein, the output terminal of the second detector is connected with secondary signal source 9；Concentrated phase space
Size is less than the size of dilute phase space.
The specific work process of the utility model is：
When coal pulverizer exports air quantity in each primary air piping, coal dust amount distribution deviation is more than ± 5%, user passes through host computer
First control signal and second control signal are sent, the first signal source 7 receives the first control signal, and described first is controlled
Signal processed is forwarded in the first controller 6, and the first controller 6 controls first jiao of stroke pneumatic to hold according to the first control signal
The air inflow of two compressed gas entrances in row device 4, so that the output shaft of first jiao of stroke pneumatic actuator 4 rotates, first
The output shaft of angle stroke pneumatic actuator 4 drives dilute phase controllable register axis 3 to rotate, and dilute phase controllable register axis 3 drives dilute phase to adjust
Baffle 2 rotates, so as to adjust the amount of the coal dust dilute-phase pneumatic flow by dilute phase space；Secondary signal source 9 receives described second at the same time
Control signal, and the second control signal is forwarded in second controller 8, second controller 8 is according to the described second control
Signal controls the air inflow of two compressed gas entrances in second jiao of stroke pneumatic actuator 5, so that second jiao of stroke pneumatic
The output shaft of actuator 5 rotates, and the output shaft of second jiao of stroke pneumatic actuator 5 drives concentrated phase controllable register axis 10, concentrated phase tune
Section damper shaft 10 drives concentrated phase controllable register 11 to rotate, so as to adjust the amount of the coal dust concentrated phase air-flow by concentrated phase space, finally
Coal pulverizer is exported into air quantity in each primary air piping, the distribution deviation control of coal dust amount within ± 5%.
Claims (4)
1. the air quantity and coal dust amount distribution regulating device of a kind of baffle automatic adjustment, it is characterised in that including host computer, housing
(1), first jiao of stroke pneumatic actuator (4), second jiao of stroke pneumatic actuator (5), dilute phase controllable register axis (3), concentrated phase tune
Save damper shaft (10), concentrated phase controllable register (11), dilute phase controllable register (2), the first signal source (7), secondary signal source (9), the
One controller (6) and second controller (8), the inside of housing (1) are divided into concentrated phase space and dilute phase space, the output terminal of host computer
It is connected with the first signal source (7) and secondary signal source (9)；
The output shaft of first jiao of stroke pneumatic actuator (4) is connected with one end of dilute phase controllable register axis (3), and dilute phase adjusts gear
The one side of the other end of board shaft (3) through dilute phase space is connected after extending into dilute phase space with the another side of dilute phase space
Connect, dilute phase controllable register (2) is connected with dilute phase controllable register axis (3), the output terminal and the first controller of the first signal source (7)
(6) input terminal is connected, the compressed gas control of the output terminal of the first controller (6) and first jiao of stroke pneumatic actuator (4)
End processed is connected；
The output shaft of second jiao of stroke pneumatic actuator (5) is connected with one end of concentrated phase controllable register axis (10), and concentrated phase is adjusted
The another side in after the one side in the other end of damper shaft (10) through concentrated phase space is extend into concentrated phase space and concentrated phase space
It is connected, concentrated phase controllable register (11) is connected with concentrated phase controllable register axis (10), the output terminal and second of secondary signal source (9)
The input terminal of controller (8) is connected, the compression of the output terminal of second controller (8) and second jiao of stroke pneumatic actuator (5)
Gas control terminal is connected.
2. the air quantity and coal dust amount distribution regulating device of baffle automatic adjustment according to claim 1, it is characterised in that also
Include the first detector of the rotational angle for detecting dilute phase controllable register axis (3), wherein, the output terminal of the first detector with
First signal source (7) is connected.
3. the air quantity and coal dust amount distribution regulating device of baffle automatic adjustment according to claim 2, it is characterised in that also
Include the second detector of the rotational angle for detecting concentrated phase controllable register axis (10), wherein, the output terminal of the second detector
It is connected with secondary signal source (9).
4. the air quantity and coal dust amount distribution regulating device of baffle automatic adjustment according to claim 1, it is characterised in that dense
The size of phase space is less than the size of dilute phase space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449738.5U CN207247264U (en) | 2017-04-26 | 2017-04-26 | The air quantity and coal dust amount distribution regulating device of a kind of baffle automatic adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720449738.5U CN207247264U (en) | 2017-04-26 | 2017-04-26 | The air quantity and coal dust amount distribution regulating device of a kind of baffle automatic adjustment |
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| Publication Number | Publication Date |
|---|---|
| CN207247264U true CN207247264U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720449738.5U Active CN207247264U (en) | 2017-04-26 | 2017-04-26 | The air quantity and coal dust amount distribution regulating device of a kind of baffle automatic adjustment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452521A (en) * | 2020-11-05 | 2021-03-09 | 西安热工研究院有限公司 | Method for calibrating inlet air volume coefficient of medium-speed coal mill |
-
2017
- 2017-04-26 CN CN201720449738.5U patent/CN207247264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452521A (en) * | 2020-11-05 | 2021-03-09 | 西安热工研究院有限公司 | Method for calibrating inlet air volume coefficient of medium-speed coal mill |
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