CN203737041U - Wet type flue gas dust removal system - Google Patents
Wet type flue gas dust removal system Download PDFInfo
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- CN203737041U CN203737041U CN201420106247.7U CN201420106247U CN203737041U CN 203737041 U CN203737041 U CN 203737041U CN 201420106247 U CN201420106247 U CN 201420106247U CN 203737041 U CN203737041 U CN 203737041U
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- water tank
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- flue gas
- dust
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Abstract
The utility model discloses a wet type flue gas dust removal system which is provided with a dust removal box; the dust removal box is provided with an upper part, a lower box body, an upper suspension, a corona discharge electrode and a dust collecting pole; a high-voltage rectifier unit and a hot air blowing machine are arranged outside the box body, and spray nozzles communicated with a water distribution pipe and a water distribution pump are formed in the top of the upper box body; a lower suspension and a gas distribution plate are arranged in the lower box body; a flue gas inlet box and a water tank communicated with the flue gas inlet box and used for collecting spray water are arranged at the bottom of the lower box body; a liquid level meter is arranged in the water tank and is communicated with the water distribution pump through a water outlet in the lower part of the water tank and a filter; the water tank discharges sewage through a pollution discharge opening in the bottom, a pollution discharge water pump and a sewage pipe; both the water distribution pipe and the sewage pipe are provided with pneumatic valves, flow meters, pressure gauges and flow control valves which are in signal and control connection with a PLC (Programmable Logic Controller), and an alarm is arranged. The wet type flue gas dust removal system is suitable for the flue gas dust removal of a power plant coal-fired boiler, has good dust removal effect and is more environmentally-friendly and energy-saving.
Description
Technical field
The utility model belongs to a kind of coal-burning boiler environmental protection equipment technology, the flue gas that in specifically power plant being produced, coal-burning boiler produces carries out effective dust removal process, make fume emission value meet the smoke dust-removing equipment, particularly a kind of Wet smoke dust pelletizing system of discharging standards.
Background technology
At present, still having a large amount of power plants is coal-fired thermal power generation, uses large coal-fired boiler in production.Large coal-fired boiler can be produced a large amount of flue dust aborning, and dedusting is very important production link during coal fired power generation is produced, and it is related to minimizing environmental pollution, especially the important social concern such as PM2.5.At present, the smoke dust-removing equipment of large power plant coal-burning boiler has varied, and its effect is all constantly being improved.But traditional smoke dust-removing equipment still comes with some shortcomings: can not collect gypsum dust and heavy metal particles after fine particle, desulfurization.Therefore, be badly in need of the smoke dust-removing equipment of existing coal-fired boiler in power plant to carry out technological improvement.
Utility model content
The purpose of this utility model is in order to solve the problems of the technologies described above, a kind of Wet smoke dust pelletizing system is proposed, this system adopts wet method combined treatment process, traditional smoke dust-removing equipment is improved, project organization meets China enterprise truth, and meets the flue gas treating process requirement of power plant's production technology.Improve the effect of flue gas ash removal, more energy-conserving and environment-protective.
The utility model is by the following technical solutions:
Wet smoke dust pelletizing system, is characterized in that: be provided with dust cleaning case, this dust cleaning case is provided with the upper box on top, the lower box of bottom, is provided with suspension, nozzle, suspention porcelain insulator on upper box top; Described upper suspension is made up of the described suspention porcelain insulator between crossbeam, girder and large and small beam, and the suspention corona discharge utmost point of setting is fixed on girder, is provided with dust collector pole in the periphery of this discharge electrode; Upper box outside is provided with provides the high-voltage rectifying of constant-current high-voltage DC power supply unit, this high-voltage rectifying unit is electrically connected with the described suspention corona discharge utmost point by a threading type high pressure suspention porcelain insulator, described high pressure suspention porcelain insulator is furnished with hot-air blowing machine, and the air outlet of hot-air blowing machine is provided with the thermocouple of the air outlet temperature that detects hot-air blowing machine; Other suspention porcelain insulators are internal heat type; On the napex of upper box, above suspension, be provided with nozzle operation layer, nozzle operation layer is furnished with continuous water spray, improves dust mobility, reduces the described nozzle of dust specific resistance; The nozzle of nozzle operation layer is communicated with sparge pipe and distribution pump, and sparge pipe is provided with Pressure gauge; Be provided with described lower box in the bottom of dust cleaning case, the lower suspension that built-in fixed electrode line and weight are used, and be provided with gas distribution grid; The bottom of this lower box is provided with the inlet box at the bottom of infundibulate case, treats that the flue gas of dedusting enters and passes into from this inlet box in the lower box of dust cleaning case; The water tank that the receiving shower water that lower box arranges with below by this inlet box is used is communicated with; In this water tank, be furnished with liquid level gauge, water tank bottom has delivery port, and this delivery port is communicated with described distribution pump by the outer water inflow filter arranging of water tank; Water tank bottom is also provided with sewage draining exit, and this sewage draining exit is discharged the sewage of water tank bottom by dredge pump and sewage pipe; Described sparge pipe and sewage pipe are equipped with operated pneumatic valve, and are furnished with flowmeter, Pressure gauge and flow control valve; Described thermocouple, liquid level gauge, flowmeter, Pressure gauge and flow control valve all with control room in arrange PLC controller carry out signal and control connection, this controller and audible-visual annunciator carry out control connection.
The utility model further improves and the additional project of enforcement is:
In described control room, be provided with high voltage control cabinet, the circuit module that is provided with the abnormal judgement of High voltage output in this switch board and reports to the police, this circuit module and described PLC controller control connection, can send alarm signal if any high voltage short circuit fault.
The described corona discharge utmost point is made wire electrode by titanium material.
Dust collector pole is made conductive layer with carbon fiber.
The flue gas treating process principle of the utility model temperature formula flue gas dust collecting system:
High voltage source is constant-current high-voltage DC power supply, is called for short " constant-current source ", and electric power outputting current is constant, irrelevant with the size of load.Its advantage one is that adaptation condition ability is strong, stable, can keep for a long time high deposition efficiency; The 2nd, this power supply output waveform is undistorted, and this power acquisition is realized the conversion to current source by voltage source with L-C loop, can improve working voltage, the levels of current of deduster, improves the operating efficiency of deduster; The 3rd, can bear the short-circuit conditions of transient state, stable state, in the time of electric field dead short, output current can be constant in rated maximum current value, and protection power source and dust collecting pole plate be unlikely causes fire alarm.When electric field is under soft short-circuit conditions, output current also can be constant in rated maximum current value, can maintain effective dust collection rate of electric field.It is that ratio resistance sizes, the equipment structure of dust is the impact of pole span and high voltage electric field size and three factors of dust-contained airflow speed that the effectiveness of performance of Wet smoke dust pelletizing system is mainly subject to dust characteristic.Native system can trap the particle of 0.03 μ m, efficiency of dust collection >=95%.Dust collector pole is made conductive layer with carbon fiber, and wire electrode is made the corona discharge utmost point with titanium material.
The advantage of the utility model Wet smoke dust pelletizing system:
(1) technical maturity, has international most advanced level.
(2) moderate, the system run all right of blast, vapour lock are little, meet power plant's manufacturing technique requirent, and technique tolerance regulates leeway large.
(3) system can be received gypsum dust and the heavy metal particles after fine particle, the desulfurization that traps 0.03 μ m.
(4) simple to operate, easy to maintenance, DCS or PLC monitor in real time, and unattended, operation automatically only needs timing every day to patrol and examine.
(5) safe, be provided with warning device, can realize emergency stop switch on the spot, signal monitoring is in good time complete, and security of operation is stable.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
Profile of the present utility model is not subject to the restriction of this figure, and only profile change also belongs to protection domain of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described: embodiment: referring to accompanying drawing, Wet smoke dust pelletizing system, be provided with dust cleaning case, this dust cleaning case is provided with the upper box 4 on top, the lower box 13 of bottom, is provided with suspension, nozzle 5, suspention porcelain insulator 7 on upper box top; Described upper suspension is made up of the described suspention porcelain insulator between crossbeam 6, girder 8 and large and small beam, and the suspention corona discharge utmost point 9 of setting is fixed on girder, is provided with dust collector pole 10 in the periphery of this discharge electrode; Upper box outside is provided with provides the high-voltage rectifying of constant-current high-voltage DC power supply unit 1, this high-voltage rectifying unit is electrically connected with the described suspention corona discharge utmost point by a threading type high pressure suspention porcelain insulator, described high pressure suspention porcelain insulator is furnished with hot-air blowing machine 2, and the air outlet of hot-air blowing machine is provided with the thermocouple of the air outlet temperature that detects hot-air blowing machine; Other suspention porcelain insulators are internal heat type; On the napex of upper box, above suspension, be provided with nozzle operation layer, nozzle operation layer is furnished with continuous water spray, improves dust mobility, reduces the described nozzle 5 of dust specific resistance; The nozzle of nozzle operation layer is communicated with distributing pipe line 15 and distribution pump 19, and distributing pipe line is provided with Pressure gauge 16; Be provided with described lower box in the bottom of dust cleaning case, the lower suspension of built-in fixed electrode line and weight 12 use, and be provided with gas distribution grid 11; The bottom of this lower box is provided with the inlet box 14 at the bottom of infundibulate case, treats that the flue gas of dedusting enters and passes into from this inlet box in the lower box of dust cleaning case; The water tank 22 that the receiving shower water that lower box arranges with below by this inlet box is used is communicated with; In this water tank, be furnished with liquid level gauge, water tank bottom has delivery port, and this delivery port is communicated with described distribution pump 19 by the outer water inflow filter 20 arranging of water tank; Water tank bottom is also provided with sewage draining exit, and this sewage draining exit is discharged the sewage of water tank bottom by dredge pump 21 and sewage conduct; Described distribution pump and dredge pump are equipped with operated pneumatic valve, and are furnished with flowmeter, Pressure gauge and flow control valve; Described thermocouple, liquid level gauge, flowmeter, Pressure gauge and flow control valve all carry out signal and control connection with the PLC controller of control room 18 interior settings, and this controller and audible-visual annunciator carry out control connection.In described control room, be provided with high voltage control cabinet, the circuit module, this circuit module and the described PLC controller control connection that in this switch board, are provided with the abnormal judgement of High voltage output and report to the police.The described corona discharge utmost point is made wire electrode by titanium material.Dust collector pole is made conductive layer with carbon fiber.
It should be pointed out that not departing under the prerequisite of the new basic structure of this practicality, can also make some improvement and change, these improvement and change also should be considered as the protection domain of this patent.
Claims (4)
1. a Wet smoke dust pelletizing system, it is characterized in that: be provided with dust cleaning case, this dust cleaning case is provided with the upper box (4) on top, the lower box (13) of bottom, is provided with suspension, nozzle (5), suspention porcelain insulator (7) on upper box top; Described upper suspension is made up of the described suspention porcelain insulator between crossbeam (6), girder (8) and large and small beam, the suspention corona discharge utmost point (9) arranging is fixed on girder, is provided with dust collector pole (10) in the periphery of this discharge electrode; Upper box outside is provided with provides the high-voltage rectifying of constant-current high-voltage DC power supply unit (1), this high-voltage rectifying unit is electrically connected with the described suspention corona discharge utmost point by a threading type high pressure suspention porcelain insulator, described high pressure suspention porcelain insulator is furnished with hot-air blowing machine (2), and the air outlet of hot-air blowing machine is provided with the thermocouple of the air outlet temperature that detects hot-air blowing machine; Other suspention porcelain insulators are internal heat type; On the napex of upper box, above suspension, be provided with nozzle operation layer, nozzle operation layer is furnished with continuous water spray, improves dust mobility, reduces the described nozzle (5) of dust specific resistance; The nozzle of nozzle operation layer is communicated with sparge pipe (15) and distribution pump (19), and sparge pipe is provided with Pressure gauge (16); Be provided with described lower box in the bottom of dust cleaning case, the lower suspension of built-in fixed electrode line and weight (12) use, and be provided with gas distribution grid (11); The bottom of this lower box is provided with the inlet box (14) at the bottom of infundibulate case, treats that the flue gas of dedusting enters and passes into from this inlet box in the lower box of dust cleaning case; The water tank (22) that the receiving shower water that lower box arranges with below by this inlet box is used is communicated with; In this water tank, be furnished with liquid level gauge, water tank bottom has delivery port, and this delivery port is communicated with described distribution pump (19) by the outer water inflow filter (20) arranging of water tank; Water tank bottom is also provided with sewage draining exit, and this sewage draining exit is discharged the sewage of water tank bottom by dredge pump (21) and sewage pipe; Described sparge pipe and sewage pipe are provided with operated pneumatic valve, and are furnished with flowmeter, Pressure gauge and flow control valve; Described thermocouple, liquid level gauge, flowmeter, Pressure gauge and flow control valve all carry out signal and control connection with control room (18) interior PLC controller arranging, and this controller and audible-visual annunciator carry out control connection.
2. Wet smoke dust pelletizing system according to claim 1, is characterized in that: in described control room, be provided with high voltage control cabinet, the circuit module, this circuit module and the described PLC controller control connection that in this switch board, are provided with the abnormal judgement of High voltage output and report to the police.
3. Wet smoke dust pelletizing system according to claim 1, is characterized in that: the described corona discharge utmost point is made wire electrode by titanium material.
4. Wet smoke dust pelletizing system according to claim 1, is characterized in that: described dust collector pole carbon fiber is made conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106247.7U CN203737041U (en) | 2014-03-11 | 2014-03-11 | Wet type flue gas dust removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106247.7U CN203737041U (en) | 2014-03-11 | 2014-03-11 | Wet type flue gas dust removal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203737041U true CN203737041U (en) | 2014-07-30 |
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ID=51336907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420106247.7U Expired - Fee Related CN203737041U (en) | 2014-03-11 | 2014-03-11 | Wet type flue gas dust removal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203737041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104971824A (en) * | 2015-07-06 | 2015-10-14 | 华能国际电力开发公司铜川照金电厂 | Combined automatic dust control system based on dry electrical dust precipitator and wet dust collector |
| CN110090736A (en) * | 2019-05-14 | 2019-08-06 | 中国重型机械研究院股份公司 | A kind of insulation cone sleeve lining Rapid Cleaning blowing method and device |
-
2014
- 2014-03-11 CN CN201420106247.7U patent/CN203737041U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104971824A (en) * | 2015-07-06 | 2015-10-14 | 华能国际电力开发公司铜川照金电厂 | Combined automatic dust control system based on dry electrical dust precipitator and wet dust collector |
| CN110090736A (en) * | 2019-05-14 | 2019-08-06 | 中国重型机械研究院股份公司 | A kind of insulation cone sleeve lining Rapid Cleaning blowing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170411 Address after: A group of A Cheng Ashe River Street Baicheng village 150000 Heilongjiang city of Harbin province (Heilongjiang Cuihua vegetable group (A Cheng) Co. Ltd. hospital) Patentee after: Harbin Hengsheng Power Station Equipment Co., Ltd. Address before: 150001 room, unit 1, Ashe street, Nangang District, Harbin, Heilongjiang, 3 Patentee before: Zhou Wenjie |
|
| TR01 | Transfer of patent right | ||
| DD01 | Delivery of document by public notice |
Addressee: Harbin Hengsheng Power Station Equipment Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Harbin Hengsheng Power Station Equipment Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20190311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |