CN103604113A - Novel tube panel type water tube heat exchanger integrated with electrostatic precipitator - Google Patents
Novel tube panel type water tube heat exchanger integrated with electrostatic precipitator Download PDFInfo
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- CN103604113A CN103604113A CN201310588788.8A CN201310588788A CN103604113A CN 103604113 A CN103604113 A CN 103604113A CN 201310588788 A CN201310588788 A CN 201310588788A CN 103604113 A CN103604113 A CN 103604113A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
A novel tube panel type water tube heat exchanger integrated with an electrostatic precipitator consists of a plurality of rows of tube panels, wherein each row of tube panels consists of heat exchanger headers at two ends and a plurality of heat exchanging tube bundles which are connected with the heat exchanger headers at the two ends; tube ends of the heat exchanger heads at the two ends of each of the adjacent tube panels are connected to one another through large-diameter elbows, so that working media of the adjacent tube panels are connected to one another; and heat exchanging tube bundles of each tube panel are arranged in a flue structure in a middle section of an extension section of an inlet of the precipitator. The heat exchanger does not occupy the other effective space in front of the inlet of the electrostatic precipitator; the waste heat of the smoke can be reasonably used; and the specific resistance of the soot is reduced, so that the efficiency of the electrostatic precipitator is improved. The novel tube panel type water tube heat exchanger integrated with the electrostatic precipitator has the advantages that the structure is simple and compact, modular production and modular assembly can be realized, and field installation is quite convenient.
Description
Technical field
The present invention relates to fire coal boiler fume UTILIZATION OF VESIDUAL HEAT IN technical field, be specifically related to a kind of and integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator.
Background technology
Coal is the topmost primary energy of China, and coal fired power generation accounts for topmost status in China's power generation, so, improve the generating efficiency of coal-fired unit, the energy-saving and emission-reduction of reduction Coal Energy Source consumption ，Dui China are significant.Fume afterheat loss is in coal-burning boiler heat loss topmost one, accounts for 4～8% of large medium-size boiler input heat, accounts for 80% left and right of the total heat loss of boiler.Generally, 12 ℃ of the every risings of the exhaust gas temperature of coal-burning boiler, its heat loss due to exhaust gas increases approximately 1%.
Now, electrostatic precipitator technology has been widely used in the smoke and dust treatment industry of coal-burning boiler.Yet the flue-gas temperature of electrostatic precipitator import is conventionally higher, the dust specific resistance that causes entering flue gas in high voltage electrostatic dust collection electric field increases, and has reduced electrostatic precipitation efficiency, makes existing electrostatic precipitator cannot meet the environmental requirement (20～30mg/m improving gradually
3), be difficult to reach the new standard limit of smog release of country.
Visible, coal-burning boiler exhaust gas temperature is higher, not only causes the huge waste of fume afterheat, and has reduced the efficiency of dust collection of electric cleaner, makes it can not reach desirable dust removing effects, finally causes the dustiness of discharging flue gas to be difficult to the requirement that is up to state standards.So the exhaust gas temperature of reduction coal-burning boiler, utilizes the waste heat of flue gas, both can improve coal-burning power plant's efficiency, also can promote the efficiency of dust collection of electric cleaner, thereby reach the double benefit of energy-saving and environmental protection.
Existing fume afterheat utilizes technology, in level or vertical gas pass before its heat exchanger is arranged in deduster or after deduster, but, in some cases, limit by space, flue is arranged extremely compact, lacks flue straight section and arrange waste-heat recovery device between air preheater and the horn mouth of deduster entrance; Although be sometimes designed with flue straight section,, because Benitration reactor has been arranged in flue straight section top, waste-heat recovery device is extremely restricted, especially be unfavorable for the transformation of existing power plant, in view of this, we have proposed a kind of and integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator.
Existing fume afterheat utilizes technology, most waterpipe type heat exchangers that adopt, and its heat exchanger is snakelike Pipe bundle structure, and the one half bend by enormous amount is formed by connecting, and not only heat exchanger structure is complicated, and 180 a large amount of degree occupy huge space.Existing fume afterheat utilizes in technology, also have and adopt heat-pipe heat exchanger, but compare with water pipe heat exchanger, heat exchange of heat pipe evaporation endothermic section metal consumption is suitable, but increased condensation heat release section, cause complex structure, bulky, cost is higher, and, once the hydraulic fluid filling in the heat exchanger tube of heat exchange of heat pipe completes, its tube wall temperature just no longer changes, cannot regulate according to the variation of boiler combustion coal, be difficult to adapt to domestic coal-burning power plant coal changeable, the special circumstances that cause flue gas acid dew point often to change.
Summary of the invention
The problem existing in order to solve above-mentioned prior art, the object of the present invention is to provide a kind of and integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator, this heat exchanger does not take other useful spaces before electrostatic precipitator entrance, compact conformation, can realize modularization production, assembled, and install at scene, dismounting is very convenient, can not only rationally utilize fume afterheat, reduce flue dust than resistance and flue gas volume and flue gas flow rate, thereby in energy-conservation, improve the efficiency of dust collection of electrostatic precipitator.
For reaching above object, the present invention adopts following technical scheme:
A kind of and the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator, described tube panel formula water pipe heat exchanger is comprised of a plurality of tube panels, each tube panel is comprised of the heat exchanger header 4 at two ends and many rows heat-exchanging tube bundle 5 of connection two ends heat exchanger header 4, the working medium that is connected to form adjacent tube panel by Bend pipe with large diameter 6 between heat exchanger header 4 pipe ends at adjacent tube panel two ends is communicated with, and the heat-exchanging tube bundle 5 of described each tube panel is arranged in the flue structure in the stage casing 2 of deduster bellmouth entrance.
Described a plurality of tube panel level or be arranged vertically in the flue structure in the stage casing 3 of electrostatic precipitator bellmouth entrance, square or the rectangular flue dividing plate corresponding with each tube panel be directly welded on the heat-exchanging tube bundle 5 of every comb screen and and tube panel is self-contained dispatches from the factory, when on-site consolidation, welding, the square flue dividing plate of tube panel is close to the outside of buffler above below, after partly overlapping, with whole lap welding, connects.
Described heat-exchanging tube bundle 5 adopts H type finned tube, spiral fin pipe or aciculiform finned tube extended surface, and the spacing of fin of described extended surface is successively decreased from front to back successively along flow of flue gas direction.Heat-exchanging tube bundle 5 on described each tube panel is 1～4 row, and the heat-exchanging tube bundle 5 on each tube panel adopts the straight tube of same diameter, equal length.
Heat-exchanging tube bundle 5 on described tube panel adopts different-diameter but the straight tube of equal length from front to back along flow of flue gas direction, and its caliber increases from front to back successively.
Described heat exchanger is furnished with guiding device 9 along the afterbody of flow of flue gas direction, described guiding device 9 comprises the light pipe 9-1 that a row of horizontal is arranged, the front end of light pipe 9-1 be on windward side along each light pipe 9-1 axially on be welded with upper and lower water conservancy diversion direction deflector 9-2, in the rear end of light pipe 9-1, be a plurality of left and right water conservancy diversion direction deflector 9-3 that lee face is welded with vertical direction.Afterbody at described heat exchanger is furnished with guiding device, and this guiding device has good guide functions, makes the air-flow of heat exchanger exit have good diffusivity, and Diffusion of gas stream direction is identical with the propagation direction of horn mouth back segment after heat exchanger.
Compared to the prior art, tool has the following advantages in the present invention:
(1) heat exchanger of the present invention is arranged in the bellmouth entrance section of deduster, can make full use of the flue space of electrostatic precipitator import, does not increase extra occupation of land space.
(2) heat exchanger of the present invention is arranged in the bellmouth entrance section of deduster, absorb flue gas heat, can be used for heating the condensate water of Regenerative Systems of Fossil Fired Power Sets, simultaneously, before flue gas enters high voltage electrostatic dust collection electric field, flue gas is lowered the temperature, the volume flow that makes to enter the pending flue gas of high voltage electrostatic dust collection electric field is minimized, thereby the flue gas flow rate in electrostatic high-pressure dust collection electric field exhaust gases passes is minimized.Meanwhile, because cigarette temperature drop is low, the ratio resistance of flue dust reduces, and then can improve the efficiency of dust collection of electric cleaner, makes dust removing effects meet the environmental requirement of increasingly stringent.
(3) the snakelike Pipe bundle structure that contains standard elbow that the present invention uses with tradition is compared, and the Bend pipe with large diameter few with quantity substitutes numerous minor diameter standard elbow, and its structural safety reliability increases substantially.Tube panel formula water pipe heat exchanger of the present invention has been eliminated the large quantity space that multitube circle coiled pipe one half bend occupies, compact conformation, can realize modularization production, assembled, install at scene, dismounting is very convenient, be arranged in the narrow space of electrostatic precipitator bellmouth entrance section, realize and electrostatic precipitator integrated, do not take other useful spaces.
(4) along flow of flue gas direction, by increasing the diameter of heat exchanger tube and/or reducing the spacing of fin of extended surface, thereby reduce flue gas actual internal area, before and after making in heat exchanger, flue gas flow rate is even, can realize along the uniform flow design in flow of flue gas direction, to adapt to the tube bank of a few comb screens below, along with reducing flying dust, the lower flue gas flow rate being brought of Temperature of Working in flue-gas temperature reduction and inlet tube easily deposits, the reduction of tube wall metal temperature is easy to occur condensing and flying dust and the solidifying sour undesirable conditions such as coupling contamination of acid, improve rear of tube bundle from deashing ability, improve tube bank and pass heat availability.
(5) every comb screen consists of the straight tube heat-exchanging tube bundle of two ends header and some row's same diameter, equal length, straight tube does not have weld seam, when shutdown maintenance or operation, can carry out electromagnetism guided wave off-line or at X-ray inspection X to straight tube, the quick-fried leakage accident of pipe that causes local area loss to cause to abrasion and corrosion can realize prevention early warning, effectively avoids wearing and tearing or the quick-fried leakage conductance of water pipe that causes of corrosion to cause that current stop up the flying dust bleeder valve of deduster and the mandatory blowing out accident that causes.
(6) afterbody of described heat exchanger is furnished with guiding device, this guiding device is simple in structure, characteristics of compact layout, and there is good guide functions, and make the air-flow of heat exchanger exit there is good diffusivity, flue gas diffuse flow is identical to the propagation direction of the horn mouth back segment with after heat exchanger.
(7) heat-exchanging tube bundle of the present invention has good shunting, water conservancy diversion and current balance function in square or rectangular flue, and part has substituted the current equalizer that must arrange in the inner original design of deduster import.
Accompanying drawing explanation
Fig. 1 is the perspective view of the novel tube panel formula of the present invention water pipe heat exchanger.
Fig. 2 is the side view of the novel tube panel formula of the present invention water pipe heat exchanger.
Fig. 3 be Fig. 2 edge A-A to profile.
Fig. 4 is the side view of the afterbody guiding device of the novel tube panel formula of the present invention water pipe heat exchanger.
Fig. 5 is the perspective view of the afterbody guiding device of the novel tube panel formula of the present invention water pipe heat exchanger.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
As shown in Figure 1 and Figure 2, the present invention a kind of with the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator, described tube panel formula water pipe heat exchanger is comprised of a plurality of tube panels, each tube panel is comprised of the heat exchanger header 4 at two ends and many rows heat-exchanging tube bundle 5 of connection two ends heat exchanger header 4, the working medium that is connected to form adjacent tube panel by Bend pipe with large diameter 6 between heat exchanger header 4 pipe ends at adjacent tube panel two ends is communicated with, and the heat-exchanging tube bundle 5 of described each tube panel is arranged in the flue structure in the stage casing 2 of deduster bellmouth entrance.
As the preferred embodiment of the present invention, described a plurality of tube panel level or be arranged vertically in the flue structure in the stage casing 3 of electrostatic precipitator bellmouth entrance, square or the rectangular flue dividing plate corresponding with each tube panel be directly welded on the heat-exchanging tube bundle 5 of every comb screen and and tube panel is self-contained dispatches from the factory, when on-site consolidation, welding, the square flue dividing plate of tube panel is close to the outside of buffler above below, after partly overlapping, with whole lap welding, connects.In the horizontally disposed flue structure in the stage casing 3 of electrostatic precipitator bellmouth entrance of a plurality of tube panels of the present embodiment.
As the preferred embodiment of the present invention, described heat-exchanging tube bundle 5 can adopt H type finned tube, spiral fin pipe or aciculiform finned tube extended surface, and the spacing of fin of described extended surface is successively decreased from front to back successively along flow of flue gas direction.Thereby reduce the sectional area of flue gas circulation, and then make along flow of flue gas direction flue gas flow rate, to equate in heat exchanger as far as possible, be conducive to heat exchange and water conservancy diversion.As shown in Figure 3, the present embodiment adopts H type finned tube.
Described tube panel row determines according to actual conditions such as heat exchange demand, spatial limitation, and the heat-exchanging tube bundle 5 on described each tube panel is 1～4 row, and the heat-exchanging tube bundle 5 on each tube panel adopts the straight tube of same diameter, equal length.Heat-exchanging tube bundle 5 on each tube panel of the present embodiment is 4 rows.
As the preferred embodiment of the present invention, the heat-exchanging tube bundle 5 on described tube panel also can adopt different-diameter but the straight tube of equal length from front to back along flow of flue gas direction, and its caliber increases from front to back successively.Such as every comb screen from front to back can adopt respectively the Pipe bundle structure of the different tube diameters such as Φ 32, Φ 38, Φ 42, Φ 45, Φ 48, Φ 51 successively, and successively decrease successively in conjunction with spacing of fin from front to back, to guarantee causing the tube panel flue gas flow rate serious dust stratification that decay causes rapidly below because flue-gas temperature reduces, improve rear of tube bundle from deashing ability, and guarantee suitable flue gas flow rate.Improve tube bank and pass heat availability.
Accordingly, heat exchanger header 4 calibers of the adjacent tube panel of described tube panel formula water pipe heat exchanger increase along with the increase successively of heat-exchanging tube bundle 5 calibers from front to back gradually along flow of flue gas direction, after the major diameter heat exchanger header 4 of tube panel need be after necking down technique again by Bend pipe with large diameter 6 and above heat exchanger header 4 ends of tube panel realize isometrical connection.
As shown in Figure 4 and Figure 5, as the preferred embodiment of the present invention, described heat exchanger is furnished with guiding device 9 along the afterbody of flow of flue gas direction, described guiding device 9 comprises the light pipe 9-1 that a row of horizontal is arranged, the front end of light pipe 9-1 be on windward side along each light pipe 9-1 axially on be welded with upper and lower water conservancy diversion direction deflector 9-2, in the rear end of light pipe 9-1, be a plurality of left and right water conservancy diversion direction deflector 9-3 that lee face is welded with vertical direction.Afterbody at described heat exchanger is furnished with guiding device, and this guiding device has good guide functions, makes the air-flow of heat exchanger exit have good diffusivity, and Diffusion of gas stream direction is identical with the propagation direction of horn mouth back segment after heat exchanger.
As the preferred embodiment of the present invention, heat exchanger header 4 highest points of described each tube panel of tube panel formula water pipe heat exchanger all arrange automatic blow off valve valve air relief, to get rid of the gas that may accumulate.
Operation principle of the present invention is: as depicted in figs. 1 and 2, during operation, water flows into each heat-exchanging tube bundle 5 from the heat exchanger water inlet 7 of a side heat exchanger header 4, then in the heat exchanger header 4 of the other side of flue, converge, by connecting bend, flow into a tube panel above again, from rear of tube, shield comb screen forward successively and flow, finally from the delivery port 8 of heat exchanger header 4, flow out.Total water current journey and the flow of flue gas direction of whole heat exchanger are counter-flow arrangement, flue gas flows to flue gas from the stage casing 2 of deduster bellmouth entrance from the leading portion 1 of deduster bellmouth entrance, flow to again flue gas from the rear end 3 of deduster bellmouth entrance, water flows through each tube panel from back to front successively, completes heat exchange.
Method for arranging of the present invention is: the stage casing of deduster bellmouth entrance is smooth for along the uiform section flue of horizontal center line level, the stage casing that is about to deduster bellmouth entrance expands to square flue structure, in improved deduster by-level section, arrange heat-exchanging tube bundle 5, then the two ends of every row's heat-exchanging tube bundle 5 are communicated with heat exchanger header 4, finally will between adjacent heat exchanger header 4, by Bend pipe with large diameter 6, connect.
The changeable situation that causes flue gas acid dew point often to change of ature of coal for state's Internal-combustion engine using coal coal that group uses, the novel tube panel formula of the present invention water pipe heat exchanger can be adjusted Temperature of Working by measures such as working medium recirculation, and then change metal pipe-wall temperature, thereby effectively avoid the problem of cold end corrosion.
Claims (8)
- One kind with the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator, it is characterized in that: described tube panel formula water pipe heat exchanger is comprised of a plurality of tube panels, each tube panel is comprised of the heat exchanger header (4) at two ends and many rows heat-exchanging tube bundle (5) of connection two ends heat exchanger headers (4), the working medium that is connected to form adjacent tube panel by Bend pipe with large diameter (6) between heat exchanger header (4) pipe end at adjacent tube panel two ends is communicated with, and the heat-exchanging tube bundle of described each tube panel (5) is arranged in the flue structure in the stage casing (2) of deduster bellmouth entrance.
- 2. a kind of and the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator according to claim 1, it is characterized in that: described a plurality of tube panel levels or be arranged vertically in the flue structure in the stage casing (3) of electrostatic precipitator bellmouth entrance, square or the rectangular flue dividing plate corresponding with each tube panel be directly welded on the heat-exchanging tube bundle (5) of every comb screen upper and and tube panel is self-contained dispatches from the factory, when on-site consolidation, welding, the square flue dividing plate of tube panel is close to the outside of buffler above below, after partly overlapping, with whole lap welding, connects.
- 3. a kind of and the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator according to claim 1, it is characterized in that: described heat-exchanging tube bundle (5) adopts H type finned tube, spiral fin pipe or aciculiform finned tube extended surface, and the spacing of fin of described extended surface is successively decreased from front to back successively along flow of flue gas direction.
- 4. a kind of and the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator according to claim 1, it is characterized in that: the heat-exchanging tube bundle (5) on described each tube panel is 1～4 row, and the heat-exchanging tube bundle on each tube panel (5) adopts the straight tube of same diameter, equal length.
- 5. a kind of and the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator according to claim 1, it is characterized in that: the heat-exchanging tube bundle on described tube panel (5) adopts different-diameter but the straight tube of equal length from front to back along flow of flue gas direction, its caliber increases from front to back successively.
- 6. a kind of and the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator according to claim 5, it is characterized in that: heat exchanger header (4) caliber of the adjacent tube panel of described tube panel formula water pipe heat exchanger increases along with the increase successively of heat-exchanging tube bundle (5) caliber from front to back gradually along flow of flue gas direction, after the major diameter heat exchanger header (4) of tube panel need be after necking down technique again by Bend pipe with large diameter (6) and above heat exchanger header (4) end of tube panel realize isometrical connection.
- 7. a kind of and the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator according to claim 1, it is characterized in that: described heat exchanger is furnished with guiding device (9) along the afterbody of flow of flue gas direction, described guiding device (9) comprises the light pipe (9-1) that a row of horizontal is arranged, the front end of light pipe (9-1) be on windward side along each light pipe (9-1) axially on be welded with upper and lower water conservancy diversion direction deflector (9-2), in the rear end of light pipe (9-1), be a plurality of left and right water conservancy diversion direction deflectors (9-3) that lee face is welded with vertical direction.
- 8. a kind of and the integrated novel tube panel formula water pipe heat exchanger of electrostatic precipitator according to claim 1, it is characterized in that: heat exchanger header (4) highest point of described each tube panel of tube panel formula water pipe heat exchanger all arranges automatic blow off valve valve air relief, to get rid of the gas that may accumulate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310588788.8A CN103604113B (en) | 2013-11-21 | 2013-11-21 | A kind of novel tube panel formula water pipe heat exchanger integrated with electrostatic precipitator |
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| CN201310588788.8A CN103604113B (en) | 2013-11-21 | 2013-11-21 | A kind of novel tube panel formula water pipe heat exchanger integrated with electrostatic precipitator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968405A (en) * | 2014-04-22 | 2014-08-06 | 西安交通大学 | Smoke heater with defogging function |
| CN104976607A (en) * | 2015-06-17 | 2015-10-14 | 大唐(北京)能源管理有限公司 | Boiler smoke-exhaustion waste heat recycling system additionally provided with heat exchange elements |
| CN105371292A (en) * | 2014-08-27 | 2016-03-02 | 谭美俊 | Flue gas cooling device of power station boiler |
| CN108680043A (en) * | 2018-06-15 | 2018-10-19 | 浙江开尔新材料股份有限公司 | Corrosion resistant enamel pipe flue gas condensing heat exchanger |
| CN115178376A (en) * | 2022-06-06 | 2022-10-14 | 华能国际电力股份有限公司大连电厂 | Compact type micro negative pressure coal yard high-efficiency environment-friendly coal-fired power plant structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968405A (en) * | 2014-04-22 | 2014-08-06 | 西安交通大学 | Smoke heater with defogging function |
| CN103968405B (en) * | 2014-04-22 | 2016-02-24 | 西安交通大学 | A kind of flue gas heater with defrosting function |
| CN105371292A (en) * | 2014-08-27 | 2016-03-02 | 谭美俊 | Flue gas cooling device of power station boiler |
| CN105371292B (en) * | 2014-08-27 | 2017-10-20 | 谭美俊 | A kind of flue gas cooling device of station boiler |
| CN104976607A (en) * | 2015-06-17 | 2015-10-14 | 大唐(北京)能源管理有限公司 | Boiler smoke-exhaustion waste heat recycling system additionally provided with heat exchange elements |
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| CN108680043A (en) * | 2018-06-15 | 2018-10-19 | 浙江开尔新材料股份有限公司 | Corrosion resistant enamel pipe flue gas condensing heat exchanger |
| CN115178376A (en) * | 2022-06-06 | 2022-10-14 | 华能国际电力股份有限公司大连电厂 | Compact type micro negative pressure coal yard high-efficiency environment-friendly coal-fired power plant structure |
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| CN103604113B (en) | 2015-10-21 |
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Address after: 430071 Wuchang District, Hubei, South Central Road No. two, No. 12, No. Patentee after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Patentee after: Xi'an Jiaotong University Address before: 430071 No. 668, democracy Road, Wuhan, Hubei Patentee before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor Patentee before: Xi'an Jiaotong University |
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Application publication date: 20140226 Assignee: Sichuan land Energy Technology Co., Ltd. Assignor: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Contract record no.: 2016420000006 Denomination of invention: Novel tube panel type water tube heat exchanger integrated with electrostatic precipitator Granted publication date: 20151021 License type: Common License Record date: 20160308 |
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