CN104879765A - Six-outlet two-row rear flue gas and air system combined arrangement structure with flue gas waste heat recovery device - Google Patents

Six-outlet two-row rear flue gas and air system combined arrangement structure with flue gas waste heat recovery device Download PDF

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Publication number
CN104879765A
CN104879765A CN201510315085.7A CN201510315085A CN104879765A CN 104879765 A CN104879765 A CN 104879765A CN 201510315085 A CN201510315085 A CN 201510315085A CN 104879765 A CN104879765 A CN 104879765A
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air
outlet
flue gas
waste heat
heat recovery
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CN104879765B (en
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范旭
杨劲
马雪松
李伟科
邓宏伟
吴家凯
王晓东
施海云
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China Energy Construction Group Guangdong Electric Power Design Institute Co Ltd
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China Energy Construction Group Guangdong Electric Power Design Institute Co Ltd
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Abstract

The invention relates to a six-outlet two-row rear flue gas and air system combined arrangement structure with a flue gas waste heat recovery device. The six-outlet two-row rear flue gas and air system combined arrangement structure with the flue gas waste heat recovery device comprises six dust remover outlets, an induced draft fan structure, a desulfurizing absorption tower, a wet type electrical dust removing structure and a chimney, wherein the induced draft fan structure adopts a double-row induced draft fan structure formed by two induced draft fans; the air inlet of each induced draft fan is communicated with three dust remover outlets; the two induced draft fans are connected with the air inlet of the desulfurizing absorption tower through the flue gas waste heat recovery device; the wet type electrical dust removing structure comprises four wet type electric precipitators; the four air outlets of the desulfurizing absorption tower are respectively connected with the air inlets of the wet type electrical dust precipitators; the air outlets of the four wet type electrical dust precipitators are communicated with the air inlet of the chimney through a collecting pipe; the induced draft fan structure, the flue gas waste heat recovery device and the outlets of six precipitators are arranged between the desulfurizing absorption tower and the chimney; the induced draft fan structure and the flue gas waste heat recovery device are arranged below the outlets of the six precipitators; the wet electric dust removing structure is positioned above the outlets of the six precipitators. The structure has the benefits of being small in occupied area, reducing the initial investment cost, and besides, has the effects of efficient operation, energy conservation and the like.

Description

With air and gas system combination layout structure after six outlet biserials of flue gas waste heat recovery apparatus
Technical field
The present invention relates to a kind of with air and gas system combination layout structure after six outlet biserials of flue gas waste heat recovery apparatus.Belong to power plant's smoke evacuation and ventilation equipment technical field.
Background technology
In coal-fired station's project, deduster and air-introduced machine are one of important land requisition index to the distance of chimney center line, after flue gas system most equipment is all arranged in stove, and front flue and deduster are arranged relatively fixing, after mainly deduster is concentrated on to the optimization of arranging after stove.To the arrangement form after deduster, main layout general layout is substantially all adopt each equipment in-line arrangement both at home and abroad, arranges air-introduced machine 1-2, arrange desulfuration absorbing tower 1-3, wet electrical dust precipitator 1-4 and chimney 1-5 after air-introduced machine 1-2 after deduster 1-1.As shown in Figure 1, after deduster 1-1, each equipment adopts in-line arrangement, air-introduced machine 1-2 is arranged between deduster 1-1 and desulfuration absorbing tower 1-3, the outlet of biserial air-introduced machine is just towards desulfuration absorbing tower 1-3 entrance, be staggeredly arranged with desulfuration absorbing tower 1-3 center line, wet electrical dust precipitator 1-4 and air-introduced machine 1-2 position far away.
The plane distribution arrangement mainly adopting shape in one line, T-shaped or rectangle along row scheme arranged by flue after tradition deduster.It adopts shape in one line, T-shaped flue is arranged and widened the fore-and-aft distance of house outlet to chimney center line, adds the material consumption of floor space and flue; And adopting rectangular flue to arrange, resistance and the material consumption of flue will increase further, and auxiliary power consumption is increased, and have level 90 ° of elbows before desulfuration absorbing tower entrance, and Flow Field Distribution is uneven, and impact enters flue gas uniformity in desulfuration absorbing tower.
As can be seen here, after traditional deduster in arrangement, no matter air-introduced machine is that shape in one line, T-shaped or plane are in rectangular layout, all can owing to pulling open the fore-and-aft distance between deduster and desulfuration absorbing tower, and produce the problems such as the layout after deduster is taken up an area greatly, flue is long, flue resistance is large, but also increase flue resistance and flue consumption of materials.Virtually add coal-fired station's floor space and flue cost, increase initial cost cost, simultaneously also because the resistance of flue increases, also directly affect the performance driving economy in power plant.
Summary of the invention
Object of the present invention, being that arrangement in order to solve equipment after existing coal-fired station deduster takes up an area the technical problems such as large, flue is long, flue resistance is large, providing a kind of with air and gas system combination layout structure after six outlet biserials of flue gas waste heat recovery apparatus.
Object of the present invention realizes by following technical scheme:
With air and gas system combination layout structure after six outlet biserials of flue gas waste heat recovery apparatus, comprise six house outlet, air-introduced machine structure, desulfuration absorbing tower, wet-esp structure and chimney, air-introduced machine structure is the biserial air-introduced machine structure be made up of two air-introduced machines, the air inlet of every platform air-introduced machine is communicated with three house outlet, and described two air-introduced machines connect the air inlet of desulfuration absorbing tower by flue gas waste heat recovery apparatus; Wet-esp structure is made up of four wet electrical dust precipitators, and four air outlets of desulfuration absorbing tower respectively connect the air inlet of a wet electrical dust precipitator, and the air outlet of four wet electrical dust precipitators connects the air inlet of chimney by collecting pipe; Desulfuration absorbing tower is vertical structure, the top that air inlet is arranged on the lower sidewall of tower body, air outlet is arranged on tower body of desulfuration absorbing tower; Air-introduced machine structure, flue gas waste heat recovery apparatus and six house outlet are arranged between desulfuration absorbing tower and chimney, air-introduced machine structure and flue gas waste heat recovery apparatus are positioned at the below of six house outlet, wet-esp structure is positioned at the top of six house outlet, described six house outlet are in being horizontally disposed with, the air outlet of air-introduced machine structure is in being horizontally disposed with, air inlet and the air outlet of flue gas waste heat recovery apparatus are vertical setting, and form longitudinal and transverse, the three-dimensional combination layout structure of vertical three-dimensional.
Object of the present invention also realizes by following technical scheme:
Further, described desulfuration absorbing tower is provided with two air inlets and four air outlets, the air outlet of two air-introduced machines connects the air intake vent of flue gas waste heat recovery apparatus, and the air outlet of flue gas waste heat recovery apparatus connects two air inlets of desulfuration absorbing tower by two parallel side-by-side discharge pipes.
Further, wet-esp structure installment is on the flue connecting desulfuration absorbing tower and chimney, on the air-introduced machine of the described air-introduced machine structure center line between desulfuration absorbing tower and chimney, described air-introduced machine is arranged on immediately below wet-esp structure side by side, described house outlet is located at position, air-introduced machine one or both sides, and every three house outlet access an air-introduced machine by flue.
Further, the connection flue of described flue gas waste heat recovery apparatus air outlet and desulfuration absorbing tower is curved.
Further, described air-introduced machine and flue gas waste heat recovery apparatus are between desulfuration absorbing tower and chimney on position of center line.
Further, maintenance distance is remained with between two air-introduced machines of described air-introduced machine structure, the air outlet of described air-introduced machine is connected with the air inlet of flue gas waste heat recovery apparatus by flue arranged side by side, and the air outlet of flue gas waste heat recovery apparatus connects with desulfuration absorbing tower air intake vent side by side.
Further, in six house outlet, every three house outlet are connected with the air inlet of an air-introduced machine by a three-in-one collecting pipe.
Further, four air outlets of described desulfuration absorbing tower access the air inlet of upper and lower distribution wet electrical dust precipitator by double-deck four output flues arranged side by side, and four output flues of wet-esp structure are by a four-in-one collecting pipe access chimney.
Further, the turning of described each flue adopts circular slow turning head to connect.
Further, described air-introduced machine entrance is provided with the access head of 0-180 ° of corner.
Beneficial effect of the present invention:
1, wet electrical dust precipitator structure of the present invention is made up of four wet electrical dust precipitators; Desulfuration absorbing tower is provided with two air inlets and four air outlets, and four air outlets of desulfuration absorbing tower respectively connect the air inlet of a wet electrical dust precipitator, and the air outlet collecting pipe of four wet electrical dust precipitators connects the air inlet of chimney; Desulfuration absorbing tower is vertical structure, and the air inlet of desulfuration absorbing tower is arranged on lower sidewall, air outlet is arranged on top; Air-introduced machine structure, flue gas waste heat recovery apparatus and six house outlet are arranged between desulfuration absorbing tower and chimney, air-introduced machine structure is positioned at the below of six house outlet, wet electrical dust precipitator structure is positioned at the top of six house outlet, described six house outlet are in being horizontally disposed with, and the air inlet of air-introduced machine structure is vertical setting, air outlet is in being horizontally disposed with; Form longitudinal and transverse, the three-dimensional combination layout structure of vertical three-dimensional; Therefore, it is possible to shorten the distance of house outlet and chimney center line, have significantly reduce flue quantity of material, reduce flue gas system crushing, equipment is more efficiently run, reduce auxiliary power consumption, improve unit operation economy and take up an area little, flue material is few, resistance is little and flue gas flow field evenly, reduce the beneficial effects such as initial cost cost, also there is energy-saving effect simultaneously.
2, the air outlet of air-introduced machine of the present invention connects with flue gas waste heat recovery apparatus air intake vent, flue gas waste heat recovery apparatus air outlet connects with desulfuration absorbing tower air intake vent, the flue connected is curved, and air-introduced machine, flue gas waste heat recovery apparatus and wet electrical dust precipitator are located between desulfuration absorbing tower and chimney, be positioned on the center line of desulfuration absorbing tower and chimney, distribute in vertical type, therefore, there is occupation of land little, flue material is few, resistance is little and flue gas flow field is even, the advantages such as initial cost cost can be reduced, also effectively can reduce the exhaust resistance of air-introduced machine, make smoke distribution even, improve desulfuration efficiency, thus improve the performance driving economy in power plant.
3, house outlet of the present invention can be distributed in the position, one or both sides of air-introduced machine, and layout can variously be rationalized.And multiple house outlet is connected with the air inlet of air-introduced machine by collecting pipe one, six wet electrical dust precipitator air intake vents connect with desulfuration absorbing tower respectively by ventilation duct arranged side by side, and air outlet is communicated with chimney air-out passage by three-in-one collecting pipe.Effectively can lower the flowing resistance of ventilation shaft thus, improve the operational efficiency of air inducing equipment and flue.
4, the upper and lower vertical double-layer block form of wet electrical dust precipitator of the present invention is installed, the incoming end of wet electrical dust precipitator passes through four bilayers access flue access desulfuration absorbing tower arranged side by side, output passes through the output flue output arranged side by side of four bilayers, by discharging in a four-in-one collecting pipe access chimney during output, reduce wet electrical dust precipitator area occupied thus, and smoke distribution is more evenly exported, improve the discharge efficiency of flue.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art of the present invention.
Fig. 2 is the structural representation of the present invention's specific embodiment.
Fig. 3 is the front view of Fig. 1.
Fig. 4 is the top view of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment 1:
With reference to air and gas system combination layout structure after six outlet biserials of Fig. 2 to Fig. 4 band flue gas waste heat recovery apparatus, comprise six house outlet 1, air-introduced machine structure, desulfuration absorbing tower 3, wet-esp structure and chimney 5, it is characterized in that: air-introduced machine structure is the biserial air-introduced machine structure be made up of two air-introduced machines 2, the air inlet of every platform air-introduced machine 2 is communicated with three house outlet 1, and described two air-introduced machines 2 connect the air inlet of desulfuration absorbing tower 3 by flue gas waste heat recovery apparatus 7; Wet-esp structure is made up of four wet electrical dust precipitators 4, and four air outlets of desulfuration absorbing tower 3 respectively connect the air inlet of a wet electrical dust precipitator 4, and the air outlet of four wet electrical dust precipitators 4 connects the air inlet of chimney 5 by collecting pipe; Desulfuration absorbing tower 3 is vertical structure, the top that air inlet is arranged on the lower sidewall of tower body, air outlet is arranged on tower body of desulfuration absorbing tower 3; Air-introduced machine structure, flue gas waste heat recovery apparatus 7 and six house outlet 1 are arranged between desulfuration absorbing tower 3 and chimney 5, air-introduced machine structure and flue gas waste heat recovery apparatus 7 are positioned at the below of six house outlet 1, wet-esp structure is positioned at the top of six house outlet 1, described six house outlet 1 are in being horizontally disposed with, the air outlet of air-introduced machine structure is in being horizontally disposed with, air inlet and the air outlet of flue gas waste heat recovery apparatus 7 are vertical setting, and form longitudinal and transverse, the three-dimensional combination layout structure of vertical three-dimensional.
In embodiment:
Described desulfuration absorbing tower 3 is provided with two air inlets and four air outlets, the air outlet of two air-introduced machines 2 connects the air intake vent of flue gas waste heat recovery apparatus 7, and the air outlet of flue gas waste heat recovery apparatus 7 connects two air inlets of desulfuration absorbing tower 3 by two parallel side-by-side discharge pipes 71.The air outlet of desulfuration absorbing tower 3 connects with the air intake vent of wet-esp structure, this wet-esp structure installment is connecting desulfuration absorbing tower 3 with on the flue of chimney 5, on the air-introduced machine 2 of the described air-introduced machine structure center line between desulfuration absorbing tower 3 and chimney 5, described air-introduced machine is arranged on immediately below wet-esp structure side by side, described house outlet 1 is located at air-introduced machine 2 one side position, and every three house outlet 1 access an air-introduced machine 2 by flue.
Described air-introduced machine 2 and flue gas waste heat recovery apparatus 7 are between desulfuration absorbing tower 3 and chimney 5 on position of center line, and the connection flue of flue gas waste heat recovery apparatus 7 air outlet and desulfuration absorbing tower 3 is curved, and the turning of each flue adopts circular slow 6 connection of turning.The flue gas of air-introduced machine 2 can be made to draw more smoothly and be delivered to desulfuration absorbing tower 3, and being delivered to chimney 5.
Maintenance distance is remained with between two air-introduced machines 2 of described air-introduced machine structure, the air outlet of described air-introduced machine 2 is connected by the air inlet of flue arranged side by side with flue gas waste heat recovery apparatus 7, the air outlet of flue gas waste heat recovery apparatus 7 connects with desulfuration absorbing tower 3 air intake vent side by side, makes flue gas waste heat recovery apparatus 7 and the flue between air-introduced machine 2 and desulfuration absorbing tower 3 be that vertical type distributes.
Taking up room to save further, simplifying its structure, in six described house outlet 1, every three house outlet 1 are connected with the air inlet of an air-introduced machine 2 by a three-in-one collecting pipe 11, four air outlets of described desulfuration absorbing tower 3 access the air inlet of upper and lower distribution wet electrical dust precipitator by double-deck four output flues arranged side by side, four output flues of wet-esp structure are accessed in chimney 5 by a four-in-one collecting pipe 41.The utility model patent " cigarette air channel and three-in-one collecting pipe (patent No.: ZL 201420211274.0) thereof " that described three-in-one collecting pipe 11 is applied for for the applicant; The utility model patent " cigarette air channel and four-in-one collecting pipe (patent No.: ZL ZL 2,014 20211431.8 " thereof that four-in-one collecting pipe 11 is applied for for the applicant) technology.
Above-mentioned each equipment and flue can be fixed by common support framework.
For conventional coal-fired station, main building mainly arranges three parts after point steam turbine building, boiler room and stove.Boiler and the equal centralized arrangement of air and gas system are after boiler room (containing bunker bay) and stove, and wherein the relative position of boiler and deduster is substantially fixing.
In this combined layout scheme: every three house outlet 1 enter air-introduced machine 2 entrance by a three-in-one collecting pipe 11, two air-introduced machines and the horizontal parallel side-by-side of flue gas waste heat recovery apparatus 7 are arranged between desulfuration absorbing tower and chimney, be positioned at below wet electrical dust precipitator 4, air-introduced machine 2 exhaust pass is connected with flue gas waste heat recovery apparatus 7 entrance, flue gas waste heat recovery apparatus 7 exhaust pass connects with desulfuration absorbing tower 3 entrance, desulfuration absorbing tower 3 exports employing four circular connecting pipe road uniform distribution flue gases, wet electrical dust precipitator 4 is entered by slow 6 slow the turning of turning of circle, wet electrical dust precipitator 4 is arranged directly over air-introduced machine 2, flue gas purifies further through wet electrical dust precipitator 4, outlet adopts four-in-one collecting pipe 41 interflow to enter chimney.The air-introduced machine 2 of final vertical distribution is up and down arranged with 5 one-tenth, chimney " one " font with the desulfuration absorbing tower 3 that wet electrical dust precipitator 4 and its both sides distribute.
The air-introduced machine 2 of upper associating arrangement is provided with the access head of 0-180 ° of corner by porch, make air-introduced machine 2 entrance can 0-180 ° of angle air intake, outlet is connected with flue gas waste heat recovery apparatus 7 entrance, flue gas waste heat recovery apparatus 7 exhaust pass connects with desulfuration absorbing tower 3 entrance, make desulfuration absorbing tower 3 inlet flue gas even flow field, improve desulfuration efficiency; Two air-introduced machine 2 both sides reserve separately and are not less than the wide maintenance distance place of 5m, are convenient to safeguard; Between each equipment, flue turning is by circular slow 6 switching of turning, and make the smooth and easy connection of flue, flue resistance reduces.After deduster, the layout of each equipment and flue makes full use of desulfuration absorbing tower 3 and chimney 5 transverse direction and vertical space, and the distance between house outlet 1 to chimney 5 center line is significantly reduced within 27 meters.

Claims (10)

1. be with flue gas waste heat recovery apparatus six outlet biserials after air and gas system combination layout structure, comprise six house outlet (1), air-introduced machine structure, desulfuration absorbing tower (3), wet-esp structure and chimney (5), it is characterized in that: air-introduced machine structure is the biserial air-introduced machine structure be made up of two air-introduced machines (2), the air inlet of every platform air-introduced machine (2) is communicated with three house outlet (1), and described two air-introduced machines (2) connect the air inlet of desulfuration absorbing tower (3) by flue gas waste heat recovery apparatus (7), wet-esp structure is made up of four wet electrical dust precipitators (4), four air outlets of desulfuration absorbing tower (3) respectively connect the air inlet of a wet electrical dust precipitator (4), and the air outlet of four wet electrical dust precipitators (4) connects the air inlet of chimney (5) by collecting pipe, desulfuration absorbing tower (3) is vertical structure, the top that air inlet is arranged on the lower sidewall of tower body, air outlet is arranged on tower body of desulfuration absorbing tower (3), air-introduced machine structure, flue gas waste heat recovery apparatus (7) and six house outlet (1) are arranged between desulfuration absorbing tower (3) and chimney (5), air-introduced machine structure and flue gas waste heat recovery apparatus (7) are positioned at the below of six house outlet (1), wet-esp structure is positioned at the top of six house outlet (1), described six house outlet (1) are in being horizontally disposed with, the air outlet of air-introduced machine structure is in being horizontally disposed with, air inlet and the air outlet of flue gas waste heat recovery apparatus (7) are vertical setting, formed vertical, horizontal, the three-dimensional combination layout structure of vertical three-dimensional.
2. band flue gas waste heat recovery apparatus according to claim 1 six outlet biserials after air and gas system combination layout structure, it is characterized in that: described desulfuration absorbing tower (3) is provided with two air inlets and four air outlets, the air outlet of two air-introduced machines (2) connects the air intake vent of flue gas waste heat recovery apparatus (7), and the air outlet of flue gas waste heat recovery apparatus (7) connects two air inlets of desulfuration absorbing tower (3) by two parallel side-by-side discharge pipes (71).
3. band flue gas waste heat recovery apparatus according to claim 1 and 2 six outlet biserials after air and gas system combination layout structure, it is characterized in that: wet-esp structure installment is connecting desulfuration absorbing tower (3) with on the flue of chimney (5), the air-introduced machine (2) of described air-introduced machine structure is positioned on the center line between desulfuration absorbing tower (3) and chimney (5), described air-introduced machine is arranged on immediately below wet-esp structure side by side, described house outlet (1) is located at air-introduced machine (2) position, one or both sides, every three house outlet (1) access an air-introduced machine (2) by flue.
4. band flue gas waste heat recovery apparatus according to claim 3 six outlet biserials after air and gas system combination layout structure, it is characterized in that: the connection flue of described flue gas waste heat recovery apparatus (7) air outlet and desulfuration absorbing tower (3) is curved.
5. air and gas system combination layout structure after six outlet biserials of band flue gas waste heat recovery apparatus according to claim 3, is characterized in that: described air-introduced machine (2) and flue gas waste heat recovery apparatus (7) to be positioned between desulfuration absorbing tower (3) and chimney (5) on position of center line.
6. band flue gas waste heat recovery apparatus according to claim 3 six outlet biserials after air and gas system combination layout structure, it is characterized in that: between two air-introduced machines (2) of described air-introduced machine structure, remain with maintenance distance, the air outlet of described air-introduced machine (2) is connected by the air inlet of flue arranged side by side with flue gas waste heat recovery apparatus (7), and the air outlet of flue gas waste heat recovery apparatus (7) connects with desulfuration absorbing tower (3) air intake vent side by side.
7. band flue gas waste heat recovery apparatus according to claim 3 six outlet biserials after air and gas system combination layout structure, it is characterized in that: in six house outlet (1), every three house outlet (1) are connected with the air inlet of an air-introduced machine (2) by a three-in-one collecting pipe (11).
8. band flue gas waste heat recovery apparatus according to claim 3 six outlet biserials after air and gas system combination layout structure, it is characterized in that: four air outlets of described desulfuration absorbing tower (3) access the air inlet of upper and lower distribution wet electrical dust precipitator by double-deck four output flues arranged side by side, four output flues of wet-esp structure are by a four-in-one collecting pipe (41) access chimney (5).
9. air and gas system combination layout structure after six outlet biserials of band flue gas waste heat recovery apparatus according to claim 3, is characterized in that: the turning of described each flue adopts circular slow turning head (6) to connect.
10. band flue gas waste heat recovery apparatus according to claim 3 six outlet biserials after air and gas system combination layout structure, it is characterized in that: described air-introduced machine (2) entrance is provided with the access head of 0-180 ° of corner.
CN201510315085.7A 2015-06-10 2015-06-10 Air and gas system combination layout structure after the six outlet biserials with flue gas waste heat recovery apparatus Active CN104879765B (en)

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CN105402752A (en) * 2015-12-02 2016-03-16 中国能源建设集团广东省电力设计研究院有限公司 Subsequent flue gas system arrangement structure for six outlets of dust remover and equipped with flue gas waste heat recovery devices
CN105627341A (en) * 2016-03-22 2016-06-01 中国能源建设集团广东省电力设计研究院有限公司 Dust remover rear flue gas system provided with flue gas heat exchanger
CN111102597A (en) * 2019-12-20 2020-05-05 湖州兴欣火焰环保科技咨询服务有限公司 Boiler smoke discharging and dust removing interactive bypass induced draft system

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CN204704833U (en) * 2015-06-10 2015-10-14 中国能源建设集团广东省电力设计研究院有限公司 With air and gas system combination layout structure after six outlet biserials of flue gas waste heat recovery apparatus

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CN105402752A (en) * 2015-12-02 2016-03-16 中国能源建设集团广东省电力设计研究院有限公司 Subsequent flue gas system arrangement structure for six outlets of dust remover and equipped with flue gas waste heat recovery devices
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CN105627341A (en) * 2016-03-22 2016-06-01 中国能源建设集团广东省电力设计研究院有限公司 Dust remover rear flue gas system provided with flue gas heat exchanger
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CN111102597A (en) * 2019-12-20 2020-05-05 湖州兴欣火焰环保科技咨询服务有限公司 Boiler smoke discharging and dust removing interactive bypass induced draft system

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