CN204965054U - Coordinated control device of boiler desulfurization pump and draught fan - Google Patents
Coordinated control device of boiler desulfurization pump and draught fan Download PDFInfo
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- CN204965054U CN204965054U CN201520631600.8U CN201520631600U CN204965054U CN 204965054 U CN204965054 U CN 204965054U CN 201520631600 U CN201520631600 U CN 201520631600U CN 204965054 U CN204965054 U CN 204965054U
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Abstract
The utility model discloses a coordinated control device of boiler desulfurization pump and draught fan, the ceramic kiln energy saving system comprises an induced draught fan, the controller of desulfurization pump and control draught fan and desulfurization pump, this controller is connected with draught fan and desulfurization pump control system respectively, still including current sensor and outage delay relay, the control end of above -mentioned controller is connected with above -mentioned induced air is electromechanical, above -mentioned current sensor is connected with above -mentioned induced air is electromechanical, an electric current for detecting above -mentioned draught fan, above -mentioned current sensor is connected with the input electricity of above -mentioned controller, the control end of above -mentioned controller is connected with above -mentioned desulfurization pump control system through outage delay relay. Compared with the prior art, its draught fan closes machine -hour, and the time delay of desulfurization pump is shut down, make the flue gas that still produces in the furnace still accessible desulfurization pump take off the pump and handle, avoid the shut down unable desulfurization process's of flue gas that still produces in the boiler furnace of back problem of draught fan, greatly reduced the pollution of boiler flue gas to the environment.
Description
Technical field
The utility model relates to coal-burning boiler field, particularly a kind of for the desulfur pump of coal-burning boiler and the linkage control device of induced draft fan.
Background technology
Desulfurization refers to sulphur in removing flue gas and the process of compound, and SO, SO2 mainly in finger flue gas, to reach environmental requirement; Therefore, generally desulfur pump is increased in existing boiler.But this desulfur pump is controlled by the induced draft fan in boiler, namely connecting with induced draft fan coordinates, and induced draft fan leaves, and desulfur pump is opened, and induced draft fan stops, and desulfur pump stops.The coordinated signals mode of this kind of induced draft fan and desulfur pump also can cause environmental pollution, and concrete reason is: producing because also having flue gas in burner hearth when the induced draft fan stopping time, making this flue gas cannot carry out de-pump process by desulfur pump, causing this flue gas to the pollution of environment.
In view of this, inventor furthers investigate the problems referred to above, then has this case to produce.
Utility model content
The purpose of this utility model is the linkage control device providing a kind of boiler desulfurization pump and induced draft fan, to solve in prior art because induced draft fan and desulfur pump stop and cause the problem of the flue gas environmental pollution in boiler simultaneously.
In order to achieve the above object, the utility model adopts such technical scheme:
The linkage control device of a kind of boiler desulfurization pump and induced draft fan, comprise induced draft fan, the controller of desulfur pump and control induced draft fan and desulfur pump, this controller respectively with induced draft fan and desulfur pump control linkage, also include current sensor and power-off delay relay, the control end of above-mentioned controller is electrically connected with above-mentioned induced draft fan, above-mentioned current sensor is electrically connected with above-mentioned induced draft fan, for detecting the electric current of above-mentioned induced draft fan, above-mentioned current sensor is electrically connected with the input end of above-mentioned controller, the control end of above-mentioned controller is by power-off delay relay and above-mentioned desulfur pump control linkage.
Above-mentioned current sensor is Hall current sensor.
After adopting technique scheme, the linkage control device of a kind of boiler desulfurization pump of the present utility model and induced draft fan, during use, when controller controls induced draft fan start, power-off delay relay does not work, control end controls desulfur pump and starts shooting simultaneously, when controller controls induced draft fan shutdown, current sensor senses the interruption current signal of induced draft fan, this interruption current signal sends to controller, controller will receive interruption current signal to carry out processing and sending control signal, this control signal sends to power-off delay relay, power-off delay relay works, control desulfur pump delay switching-off, like this, during induced draft fan shutdown, the flue gas also produced in burner hearth also carries out de-pump process by desulfur pump, the flue gas also produced in boiler furnace after avoiding induced draft fan to shut down cannot the problem of desulfurization process, greatly reduce the pollution of boiler smoke to environment.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
In figure:
Induced draft fan 1 desulfur pump 2
Industry control system 3 current sensor 4
Power-off delay relay 5
Embodiment
In order to explain the technical solution of the utility model further, be described in detail below by specific embodiment.
The linkage control device of a kind of boiler desulfurization pump of the present utility model and induced draft fan, as shown in Figure 1, comprises induced draft fan 1, desulfur pump 2 and controls the controller 3 of induced draft fan 1 and desulfur pump 2, this controller 3 respectively with induced draft fan 1 and desulfur pump 2 control linkage.The control mode of this controller 3 pairs of induced draft fans 1 and desulfur pump 2 is known, is not repeated at this.Innovation of the present utility model is: this linkage control device also includes current sensor 4 and power-off delay relay 5, current sensor 4 is electrically connected with induced draft fan 1, this current sensor 4 is Hall current sensor, for detecting the electric current of induced draft fan 1, this current sensor 4 is known technology with the measurement mode of connection of induced draft fan 1, do not tire out at this and state, the output terminal of current sensor 4 is electrically connected with the input end of controller 3, and the control end of controller 3 is by power-off delay relay 4 and desulfur pump 2 control linkage.
The linkage control device of a kind of boiler desulfurization pump of the present utility model and induced draft fan, during use, start shooting when controller 3 controls to control desulfur pump 2 when induced draft fan 1 is started shooting simultaneously, power-off delay relay 5 does not work, and starts shooting while realizing induced draft fan 1 and desulfur pump 2, when controller 3 control induced draft fan 1 shut down time, current sensor 4 senses the interruption current signal of induced draft fan 1, this interruption current signal sends to controller 3, controller 3 will receive interruption current signal to carry out processing and sending control signal, this control signal is through sending to power-off delay relay 5, power-off delay relay 5 controls desulfur pump delay switching-off, like this, during induced draft fan shutdown, the flue gas also produced in burner hearth also carries out de-pump process by desulfur pump, the flue gas also produced in boiler furnace after avoiding induced draft fan to shut down cannot the problem of desulfurization process, greatly reduce the pollution of boiler smoke to environment.
In the utility model, this controller is revise easily in the delay cut-off control mode of existing single-chip microcomputer by current sensor with the control mode controlling desulfur pump delay cut-off that coordinates of power-off delay relay, is equivalent to a known technology.
Product form of the present utility model is not limited to this case diagram and embodiment, and anyone carries out suitable change or the modification of similar thinking to it, all should be considered as not departing from patent category of the present utility model.
Claims (2)
1. the linkage control device of a boiler desulfurization pump and induced draft fan, comprise induced draft fan, the controller of desulfur pump and control induced draft fan and desulfur pump, this controller respectively with induced draft fan and desulfur pump control linkage, it is characterized in that: also include current sensor and power-off delay relay, the control end of above-mentioned controller is electrically connected with above-mentioned induced draft fan, above-mentioned current sensor is electrically connected with above-mentioned induced draft fan, for detecting the electric current of above-mentioned induced draft fan, above-mentioned current sensor is electrically connected with the input end of above-mentioned controller, the control end of above-mentioned controller is by power-off delay relay and above-mentioned desulfur pump control linkage.
2. the linkage control device of a kind of boiler desulfurization pump according to claim 1 and induced draft fan, is characterized in that: above-mentioned current sensor is Hall current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520631600.8U CN204965054U (en) | 2015-08-20 | 2015-08-20 | Coordinated control device of boiler desulfurization pump and draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520631600.8U CN204965054U (en) | 2015-08-20 | 2015-08-20 | Coordinated control device of boiler desulfurization pump and draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204965054U true CN204965054U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520631600.8U Active CN204965054U (en) | 2015-08-20 | 2015-08-20 | Coordinated control device of boiler desulfurization pump and draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204965054U (en) |
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2015
- 2015-08-20 CN CN201520631600.8U patent/CN204965054U/en active Active
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