CN210079803U - Wet electrostatic dust collector flushing system for auxiliary fire extinguishing - Google Patents
Wet electrostatic dust collector flushing system for auxiliary fire extinguishing Download PDFInfo
- Publication number
- CN210079803U CN210079803U CN201920595775.6U CN201920595775U CN210079803U CN 210079803 U CN210079803 U CN 210079803U CN 201920595775 U CN201920595775 U CN 201920595775U CN 210079803 U CN210079803 U CN 210079803U
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- Prior art keywords
- flushing
- fire extinguishing
- water supply
- water
- fire
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 51
- 239000000428 dust Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 238000005406 washing Methods 0.000 claims abstract description 30
- 239000012719 wet electrostatic precipitator Substances 0.000 claims abstract description 14
- 230000005686 electrostatic field Effects 0.000 claims abstract description 6
- 230000001629 suppression Effects 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
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- Electrostatic Separation (AREA)
Abstract
The utility model discloses a wet electrostatic precipitator washing water system for auxiliary fire extinguishing, which comprises a washing water supply unit, a washing unit and a fire extinguishing water supply unit, wherein the washing unit comprises a washing main pipe and a plurality of washing branches, the washing main pipe is respectively connected with each washing branch through a control valve, and each washing branch is correspondingly arranged right above a high-voltage electrostatic field of a dust remover; the flushing water supply unit and the fire extinguishing water supply unit are respectively communicated with a flushing main pipe of the flushing unit; the fire extinguishing water supply unit comprises a water tank, a fire extinguishing water pump, a fire extinguishing electric valve and a connecting pipeline; the flushing water supply unit comprises a water supply source, a flushing water electric valve and a connecting pipeline; also included are a sensor unit and a control unit. The system judges whether to catch fire or not by configuring a fire extinguishing water source and acquiring information through the sensor, and extinguishes the fire in time, thereby gaining precious time for fire rescue.
Description
Technical Field
The utility model belongs to a wet dedusting technical field of the ultra-clean emission of flue gas of thermal power plant, concretely relates to wet electrostatic precipitator's wash water system.
Background
At present, the smoke emission of the existing coal-fired generating set requires the execution of the emission limit value of a gas turbine, and the wet electrostatic dust collector has outstanding advantages in the deep purification of wet flue gas, so that the wet electrostatic dust collector is widely applied to the coal-fired generating set. The conductive glass fiber reinforced plastic is an ideal material for the anode of the wet electrostatic dust collector due to the advantages of strong acid mist corrosion resistance, good conductivity, easy washing and the like. However, the application of the polymer resin of glass fiber reinforced plastics to the high-voltage electrostatic field of the wet electrostatic precipitator has the risk of fire, and the recent media have reported more serious accidents such as the fire and burning of the wet electrostatic precipitator. The current wet electrostatic precipitator washing water unit is restricted by washing intensity requirements, only can realize subarea washing, the system regularly opens an electric valve of a certain washing branch pipe to wash a high-voltage electric field in a subarea, only one area can be covered in the same time period, and the requirement of full-section spraying when fire extinguishment cannot be met when fire occurs.
Based on the current situation, a flushing water system which can quickly assist in extinguishing a fire in case of a fire is needed to be designed.
Disclosure of Invention
The utility model provides a set of sparge water system that can help put out a fire when the condition of a fire appears.
The utility model discloses a concrete technical scheme as follows:
a wet electrostatic precipitator flushing water system for auxiliary fire extinguishing comprises a flushing water supply unit, a flushing unit and a fire extinguishing water supply unit,
the washing unit comprises a washing main pipe and a plurality of washing branches, the washing main pipe is respectively connected with each washing branch through a control valve, and each washing branch is correspondingly arranged right above the high-voltage electrostatic field of the dust remover; the flushing water supply unit and the fire extinguishing water supply unit are respectively communicated with a flushing main pipe of the flushing unit;
the fire extinguishing water supply unit comprises a water tank, a fire extinguishing water pump, a fire extinguishing electric valve and a connecting pipeline;
the flushing water supply unit comprises a water supply source, a flushing water electric valve and a connecting pipeline;
the fire extinguishing water pump and the fire extinguishing electric valve are started when the measured smoke temperature reaches a set value, and fire extinguishing water flows into each flushing branch to extinguish fire.
Preferably, the water supply source of the washing water supply unit is from a desulfurization demister water source.
Preferably, the fire extinguishing water supply unit is used for supplying water from circulating water of a power plant and is provided with a large-capacity water tank.
Preferably, the sensor unit includes at least a temperature sensor provided at an inlet and a temperature sensor provided at an outlet of the dust collector, respectively.
Preferably, each control valve adopts an explosion-proof type electric valve.
Preferably, the flushing main pipe and the spray header are both made of metal materials.
The control unit adopts a DCS configuration control system.
Compared with the prior art, the utility model has the following advantages:
the utility model discloses dispose two sets of water supply water sources, provide the water source for washing and putting out a fire respectively, make one set of system possess two kinds of functions.
During normal operating, the electric valve is opened according to the logic of setting for to the system and the positive pole is washed one by one, in case the condition of a fire appears, cuts off and washes the electric valve, starts the water pump of putting out a fire and puts out a fire electric valve, realizes that full section sprays to put out a fire.
The sensor gathers dust remover exit flue gas temperature, judges whether to fire according to the temperature, and the capacity of water tank can satisfy the full section and put out a fire 10~20 minutes, wins the precious time for the fire rescue.
The fire extinguishing water tank adopts a ball float valve to control the liquid level, and the water level height of the fire extinguishing water tank can be kept for a long time.
Drawings
FIG. 1 is a diagram of a shower water system according to the present invention;
in the figure: 1-a water tank; 2-a water tank ball cock; 3-a fire-extinguishing water pump; 4-fire extinguishing electric valve; 5-flushing the electric valve; 6-temperature sensor.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1, the wet electrostatic precipitator rinse water system for assisting fire suppression provided in this example includes a rinse water supply unit I, a fire suppression water supply unit II, a rinse unit III, a sensor unit, and a control unit.
The fire extinguishing flushing unit comprises a flushing main pipe and a plurality of flushing branches, the flushing main pipe is respectively connected with each flushing branch through a control valve, and each flushing branch is correspondingly arranged right above the high-voltage electrostatic field of the dust remover; the flushing water supply unit and the fire extinguishing water supply unit are respectively communicated with a flushing main pipe of the flushing unit;
the fire extinguishing water supply unit comprises a water tank 1, a water tank ball float valve 2, a fire extinguishing water pump 3, a fire extinguishing electric valve 4 and a connecting pipeline;
the flushing water supply unit comprises a water supply source, a flushing water electric valve 5 and a connecting pipeline;
the fire extinguishing main pipe is connected with the washing main pipe through the fire extinguishing electric valve to supply water for the connection of each washing branch pipe; the flushing unit is positioned right above the high-voltage electrostatic field, a control electric valve is arranged on each flushing branch, when a flushing water source is accessed, the electric valves are opened in sequence to connect branch pipes for flushing, when a fire extinguishing water source is accessed, the electric valve branch pipes are all opened at the same time to connect, and full-section spraying is carried out;
including sensor unit and control unit, control unit is connected with sensor unit and each motorised valve respectively, and sensor unit is used for measuring the interior flue gas temperature of dust remover, and when measuring flue gas temperature reached the setting value, open the fire-fighting water pump and the motorised valve of putting out a fire, the water source of putting out a fire flows into each and washes the branch road and put out a fire.
Example two:
optionally, in this example, the flushing water source is from desulfurization defroster water source, and the water source of putting out a fire adopts the power plant circulating water to dispose large capacity water tank and store the water source.
Example three:
alternatively, in this example, the sensor unit includes a temperature sensor 6 provided at the inlet and a temperature sensor 6 provided at the outlet of the dust remover, respectively.
Example four:
optionally, in this example, each control valve is an explosion-proof electric valve; the washing main pipe and the spray header are made of corrosion-resistant metal materials; the washing main pipe and the washing branch pipe are made of corrosion-resistant metal materials.
Example five:
a certain 300MW thermal power generating unit reforms transform the demand because of the ultralow emission of environmental protection, and the wet electrostatic precipitator who has set flue gas deep purification now divides into four and washes the branch pipes, washes the positive pole with four pipelines respectively and wash electric valve 5 regularly, washes the water source and connects desulfurization defroster sparge water. The temperature sensor 6 at the inlet of the dust remover and the temperature sensor at the outlet of the dust remover, and the control unit adopts a DCS configuration control system.
A set of 300m is arranged in a zero meter3The volume of the fire extinguishing water tank 1 meets the requirement of full-section spraying for 10-20 minutes, the water tank is connected with a factory circulating water source, a water tank ball float valve 2 is adopted to keep the liquid level of the water tank, and the parameters of a fire extinguishing water pump 3 correspond to the full-section fire extinguishing. All pipelines are made of metal materials, and the control valve is explosion-proof. When the value of any one of the temperature sensors at the inlet and the outlet of the wet electrostatic dust collector is more than 65 ℃, the program automatically cuts off the flushing valve and the high-voltage power supply, starts the fire-extinguishing water pump and the valve, extinguishes the fire at the first time, and avoids the heavy property loss.
Claims (6)
1. A wet electrostatic precipitator wash water system for assisting fire extinguishing comprises a wash water supply unit and a washing unit; the method is characterized in that: the fire extinguishing water supply unit is also included; the flushing unit comprises a flushing main pipe and a plurality of flushing branches, the flushing main pipe is respectively connected with each flushing branch through a control valve, each flushing branch is correspondingly arranged right above the high-voltage electrostatic field of the dust remover, and the flushing water supply unit and the fire extinguishing water supply unit are respectively communicated with the flushing main pipe of the flushing unit; the fire extinguishing water supply unit comprises a water tank, a fire extinguishing water pump, a fire extinguishing electric valve and a connecting pipeline; the flushing water supply unit comprises a water supply source, a flushing water electric valve and a connecting pipeline; the fire extinguishing water pump and the fire extinguishing electric valve are started when the measured smoke temperature reaches a set value, and fire extinguishing water flows into each flushing branch to extinguish fire.
2. The fire suppression assisting wet electrostatic precipitator flushing system of claim 1, wherein: and a water supply source of the washing water supply unit is from a desulfurization demister water source.
3. A fire suppression assisting wet electrostatic precipitator flush system as claimed in claim 2, wherein: the water source of the fire extinguishing water supply unit is from circulating water of a power plant and is provided with a large-capacity water tank.
4. A fire suppression assisting wet electrostatic precipitator flush water system according to any one of claims 1 to 3, wherein: the sensor unit at least comprises a temperature sensor arranged at an inlet and a temperature sensor arranged at an outlet of the dust remover respectively.
5. The fire suppression assisting wet electrostatic precipitator flushing system of claim 4, wherein: each control valve adopts an explosion-proof electric valve.
6. The fire suppression assisting wet electrostatic precipitator flushing system of claim 5, wherein: the washing main pipe and the spray header are both made of metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920595775.6U CN210079803U (en) | 2019-04-28 | 2019-04-28 | Wet electrostatic dust collector flushing system for auxiliary fire extinguishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920595775.6U CN210079803U (en) | 2019-04-28 | 2019-04-28 | Wet electrostatic dust collector flushing system for auxiliary fire extinguishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210079803U true CN210079803U (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920595775.6U Active CN210079803U (en) | 2019-04-28 | 2019-04-28 | Wet electrostatic dust collector flushing system for auxiliary fire extinguishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210079803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117160679A (en) * | 2023-10-31 | 2023-12-05 | 山东科达智能装备有限公司 | Wet-type electrostatic dust collection auxiliary fire extinguishing system |
-
2019
- 2019-04-28 CN CN201920595775.6U patent/CN210079803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117160679A (en) * | 2023-10-31 | 2023-12-05 | 山东科达智能装备有限公司 | Wet-type electrostatic dust collection auxiliary fire extinguishing system |
| CN117160679B (en) * | 2023-10-31 | 2024-02-20 | 山东科达智能装备有限公司 | Wet-type electrostatic dust collection auxiliary fire extinguishing system |
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