CN207778413U - A kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat - Google Patents

Abstract

The utility model discloses a kind of dust-extraction units of thermal power generation automatically reclaiming fume afterheat, including aspiration pump, slag chamber, preheating chamber and cyclone dust collectors, it is equipped with multiple rectangle flow-disturbings in slag chamber and hinders dirt screen, the output end of slag chamber is connected to the input terminal of fume pipe in preheating chamber, fume pipe is in the shape of a spiral, water inlet pipe is equipped at the top of preheating chamber, water inlet pipe is equipped with the first solenoid valve, preheating chamber lower end is equipped with outlet pipe, outlet pipe is equipped with second solenoid valve, the outer wall of preheating chamber is equipped with PLC controller, PLC controller is respectively and aspiration pump, first solenoid valve, second solenoid valve, liquid level sensor, temperature sensor is electrically connected, the output end of fume pipe is connected to the input terminal of cyclone dust collectors, cyclone dust collectors are fixedly mounted on by fixed frame above slag case；The dust-extraction unit of this kind of thermal power generation automatically reclaiming fume afterheat is realized entire flue gas reuse and the automatic progress of dust removal process, is saved labour, improved work efficiency by the setting of PLC controller.

Description

A kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat

Technical field

The utility model is related to a kind of fume dust removers, more particularly, to a kind of thermal power generation automatically reclaiming fume afterheat Dust-extraction unit, be related to field of thermal power.

Background technology

When carrying out thermal power generation, the heat loss due to exhaust gas of boiler accounts for 70 the percent of boiler heat loss and arrives for thermal power plant 80 percent, and with the lengthening of boiler operation time, exhaust gas temperature will ten to hundred higher than design temperature 2 percent / tri- ten, China is thermoelectricity big country, and there is the fired power generating unit that a large amount of high fume temperatures, making time are grown, boiler exhaust gas temperature Degree reaches as high as 200 degree or so, and the exhaust gas temperature newly to come into operation is also at 130 degree or so, therefore to thermal power plant Flue gas carries out waste heat recovery, can not only reduce discharge, reduces matchmaker's consumption, additionally it is possible to greatly improve energy utilization efficiency；In addition, coal It, generally all not only can be serious if be directly discharged in air with lime-ash in the flue gas of generation during charcoal combustion power generation Environment is polluted, and can also cause the waste of lime-ash, because lime-ash can also be used in the industries such as building.Currently on the market one As flue gas is handled using flue gas processing equipment of boiler, can not only recycle fume afterheat, but also used The cost that equipment handles lime-ash is higher, and investment is larger, and needs to be replaced frequently, and is unfavorable for the efficient process of lime-ash in flue gas.

Utility model content

The technical problems to be solved in the utility model is to overcome existing thermal power generation smoke eliminator of high cost and cannot The defect for recycling waste heat, provides a kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat, to solve above-mentioned ask Topic.

To achieve the above object, the utility model provides the following technical solutions：More than a kind of thermal power generation automatically reclaiming flue gas The dust-extraction unit of heat, including aspiration pump, slag chamber, preheating chamber and cyclone dust collectors, the aspiration pump is by smoke-fire-tube by flue gas It is pumped into slag chamber, multiple rectangle flow-disturbings is equipped in the slag chamber and hinder dirt screen, in the output end and preheating chamber of the slag chamber The input terminal of fume pipe is connected to, and in the shape of a spiral, and the fume pipe is made the fume pipe of Heat Conduction Material, the preheating chamber Top is equipped with water inlet pipe, and the water inlet pipe is equipped with the first solenoid valve, and preheating chamber upper end inner wall is equipped with liquid level sensor, described Preheating chamber bottom interior wall is equipped with temperature sensor, and the preheating chamber lower end is equipped with outlet pipe, and the outlet pipe is equipped with the second electromagnetism Valve, the outer wall of the preheating chamber are equipped with PLC controller, the PLC controller respectively with aspiration pump, the first solenoid valve, the second electricity Magnet valve, liquid level sensor, temperature sensor are electrically connected, and the output end of the fume pipe and the input terminal of cyclone dust collectors connect Logical, the cyclone dust collectors are fixedly mounted on by fixed frame above slag case, and the fixed frame bottom is fixedly mounted on damping On pedestal, the slag case is located at immediately below the ash discharging hole of cyclone dust collectors, and exhaust pipe is provided at the top of the cyclone dust collectors.

As a kind of optimal technical scheme of the utility model, the grid aperture of rectangle flow-disturbing resistance dirt screen from a left side to Successively decrease successively on the right side.

As a kind of optimal technical scheme of the utility model, the waste slag chamber bottom is equipped with slag-drip opening.

As a kind of optimal technical scheme of the utility model, the preheating chamber bottom is equipped with non-slip mat.

As a kind of optimal technical scheme of the utility model, the slag case is removably mounted on fixed frame.

As a kind of optimal technical scheme of the utility model, desired temperature is stored in the PLC controller.

Compared with prior art, the utility model has the beneficial effects that：This kind of thermal power generation automatically reclaiming fume afterheat Dust-extraction unit is controlled opening or the closing of aspiration pump, the first solenoid valve and second solenoid valve by PLC controller, realized The automatic progress of entire flue gas reuse and dust removal process, high degree of automation save labour, improve work efficiency, and lead to Slag chamber and cyclone dust collectors are crossed, the lime-ash in flue gas can repeatedly be handled, the lime-ash in flue gas is effectively removed, passes through The setting of preheating chamber and spiral helicine fume pipe, the waste heat that can make full use of in flue gas preheat cold water, realize simultaneously Purification and heat recovery are carried out to flue gas, reduce pollution to environment, and heat exchange efficiency is high, it can be more fully Using the waste heat of flue gas, have floor space small, a variety of advantages such as low, service life length of cost of investment.

Description of the drawings

Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：

Fig. 1 is a kind of dust-extraction unit structural schematic diagram of thermal power generation automatically reclaiming fume afterheat described in the utility model；

In figure：1, aspiration pump；2, slag chamber；3, rectangle flow-disturbing hinders dirt screen；4, slag-drip opening；5, preheating chamber；6, fume pipe； 7, water inlet pipe；8, the first solenoid valve；9, liquid level sensor；10, outlet pipe；11, second solenoid valve；12, temperature sensor；13、 PLC controller；14, cyclone dust collectors；15, fixed frame；16, exhaust pipe；17, ash discharging hole；18, slag case；19, damping base； 20, smoke-fire-tube.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment is based on the embodiments of the present invention, and those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of thermal power generation automatically reclaiming fume afterheat removes Dirt device, including aspiration pump 1, slag chamber 2, preheating chamber 5 and cyclone dust collectors 14, aspiration pump 1 are taken out flue gas by smoke-fire-tube 20 It is equipped with multiple rectangle flow-disturbings resistance dirt screen 3 into slag chamber 2, in slag chamber 2, fume pipe in the output end and preheating chamber 5 of slag chamber 2 6 input terminal connection, realizes the recycling of fume afterheat, reduces the waste of resource, fume pipe 6 in the shape of a spiral, and flue gas Pipe 6 is made of Heat Conduction Material, and 5 top of preheating chamber is equipped with water inlet pipe 7, and water inlet pipe 7 is equipped with the first solenoid valve 8,5 upper end of preheating chamber Inner wall is equipped with liquid level sensor 9, and 5 bottom interior wall of preheating chamber is equipped with temperature sensor 12, and 5 lower end of preheating chamber is equipped with outlet pipe 10, Outlet pipe 10 is equipped with second solenoid valve 11, and the outer wall of preheating chamber 5 is equipped with PLC controller 13, is convenient for automation control, PLC controls Device 13 is electrically connected with aspiration pump 1, the first solenoid valve 8, second solenoid valve 11, liquid level sensor 9, temperature sensor 12 respectively, The output end of fume pipe 6 is connected to the input terminal of cyclone dust collectors 14, and cyclone dust collectors 14 are fixedly mounted on by fixed frame 15 18 top of slag case, 15 bottom of fixed frame are fixedly mounted in damping base 19, prevent cyclone dust collectors 14 by external environment Interference shakes, and influences dust removing effects, and slag case 18 is located at immediately below the ash discharging hole 17 of cyclone dust collectors 14, cyclone dust collectors 14 tops are provided with exhaust pipe 16.

The grid aperture of rectangle flow-disturbing resistance dirt screen 3 is from left to right successively decreased successively, and waste slag chamber bottom is equipped with slag-drip opening 4, just In discharge lime-ash, 5 bottom of preheating chamber is equipped with non-slip mat, and slag case 18 is removably mounted on fixed frame 15, PLC controller 13 Inside store desired temperature.

Concrete principle：In use, flue gas is sucked by aspiration pump 1 inside slag chamber 2, through more inside slag chamber 2 A rectangle flow-disturbing resistance dirt screen 3 carries out flow-disturbing resistance dirt processing, then flue gas enter the fume pipe 6 inside preheating chamber 5 to cold water into Row preheating, finally enters to cyclone dust collectors 14, and after cyclone dust removal, the flue gas of not lime-ash is discharged from exhaust pipe 16, When liquid level inside preheating chamber 5 there was not liquid level sensor 9, PLC controller 13 controls the first solenoid valve 8 and closes, and works as temperature sensing When the temperature value that device 12 detects reaches desired temperature, the control of PLC controller 13 opening second solenoid valve 11 is simultaneously defeated by hot water It is sent to next equipment.

The dust-extraction unit of this kind of thermal power generation automatically reclaiming fume afterheat controls aspiration pump, the first electricity by PLC controller The opening or closing of magnet valve and second solenoid valve realize entire flue gas reuse and the automatic progress of dust removal process, automation Degree is high, saves labour, improves work efficiency, can be to the lime-ash in flue gas by slag chamber and cyclone dust collectors It is repeatedly handled, effectively removes the lime-ash in flue gas, it, can be fully sharp by the setting of preheating chamber and spiral helicine fume pipe Cold water is preheated with the waste heat in flue gas, while realizing and purification and heat recovery is carried out to flue gas, is reduced pair The pollution of environment, and heat exchange efficiency is high, can more fully utilize the waste heat of flue gas, have floor space small, cost of investment A variety of advantages such as low, service life length.

Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it still can be with technical scheme described in the above embodiments is modified, or to which part technical characteristic Equivalent replacement is carried out, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (6)

1. a kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat, including aspiration pump (1), slag chamber (2), preheating chamber (5) and cyclone dust collectors (14), which is characterized in that flue gas is pumped into slag chamber by the aspiration pump (1) by smoke-fire-tube (20) (2), multiple rectangle flow-disturbings resistance dirt screen (3), the output end and preheating chamber of the slag chamber (2) are equipped in the slag chamber (2) (5) interior fume pipe (6) input terminal connection, the fume pipe (6) in the shape of a spiral, and the fume pipe (6) use Heat Conduction Material It is made, water inlet pipe (7) is equipped at the top of the preheating chamber (5), the water inlet pipe (7) is equipped with the first solenoid valve (8), the preheating chamber (5) upper end inner wall is equipped with liquid level sensor (9), and preheating chamber (5) bottom interior wall is equipped with temperature sensor (12), the preheating Room (5) lower end is equipped with outlet pipe (10), and the outlet pipe (10) is equipped with second solenoid valve (11), the outer wall of the preheating chamber (5) Equipped with PLC controller (13), the PLC controller (13) respectively with aspiration pump (1), the first solenoid valve (8), second solenoid valve (11), liquid level sensor (9), temperature sensor (12) are electrically connected, the output end and cyclone dust collectors of the fume pipe (6) (14) input terminal connection, the cyclone dust collectors (14) are fixedly mounted on by fixed frame (15) above slag case (18), institute It states fixed frame (15) bottom to be fixedly mounted in damping base (19), the slag case (18) is located at the row of cyclone dust collectors (14) Immediately below grey mouth (17), exhaust pipe (16) is provided at the top of the cyclone dust collectors (14).

2. a kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat according to claim 1, which is characterized in that institute From left to right successively decrease successively in the grid aperture for stating rectangle flow-disturbing resistance dirt screen (3).

3. a kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat according to claim 1, which is characterized in that institute It states waste slag chamber bottom and is equipped with slag-drip opening (4).

4. a kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat according to claim 1, which is characterized in that institute It states preheating chamber (5) bottom and is equipped with non-slip mat.

5. a kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat according to claim 1, which is characterized in that institute Slag case (18) is stated to be removably mounted on fixed frame (15).

6. a kind of dust-extraction unit of thermal power generation automatically reclaiming fume afterheat according to claim 1, which is characterized in that institute It states in PLC controller (13) and stores desired temperature.