CN204213904U - A kind of boiler smoke synthesis energy saving EGR - Google Patents
A kind of boiler smoke synthesis energy saving EGR Download PDFInfo
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- CN204213904U CN204213904U CN201420629690.2U CN201420629690U CN204213904U CN 204213904 U CN204213904 U CN 204213904U CN 201420629690 U CN201420629690 U CN 201420629690U CN 204213904 U CN204213904 U CN 204213904U
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Abstract
The utility model discloses a kind of boiler smoke synthesis energy saving EGR, comprise boiler body, body of heater pipe and heat exchanger, boiler body is communicated with heat exchanger by body of heater pipe, EGR is provided with between heat exchanger and boiler body, the top of heat exchanger is provided with flue gas escape pipe, EGR comprises circulation house steward, First air circulation pipe and Secondary Air circulation pipe, circulation house steward is connected with First air circulation pipe and Secondary Air circulation pipe by threeway, Secondary Air circulation pipe is positioned at the top of First air circulation pipe, First air circulation pipe is provided with First air air-valve and First air blower fan successively from the one end be connected with circulation house steward, Secondary Air circulation pipe is provided with Secondary Air air-valve and Secondary Air blower fan successively from the one end be connected with circulation house steward.The utility model boiler smoke synthesis energy saving EGR has sufficient combustion, efficiency is high, control is flexible and overhaul advantage easily.
Description
Technical field
The utility model relates to boiler, specifically refers to a kind of boiler smoke synthesis energy saving EGR.
Background technology
Disclosed boiler flue gas recirculation device at present, a kind of boiler flue gas recirculation device disclosed in Chinese patent CN201382408Y, comprises body of heater, chain furnace grate, bellows, Bunker, slag notch, burner hearth, flue, air preheater, smoking air-introduced machine and pressure fan; Also comprise bellows or/and secondary air duct; Flue between its air preheater and smoking air-introduced machine there is outlet flue, outlet flue is connected with the import of recycling flue, the recycling outlet of flue is connected with the air inlet of gas recirculating fan, the air outlet of gas recirculating fan is connected with the import of recirculating gas duct, the outlet of recirculating gas duct with bellows or/and secondary air duct is connected.This boiler flue gas recirculation device improves efficiency of combustion to a certain extent, reduce the discharge of pernicious gas, but the design of the series-mode frame of its air channel and secondary air duct, make it control and overhaul inconvenience, if a wherein air channel gas leakage, firm whole EGR need close maintenance, and outlet flue is directly connected with recycling flue, the flue gas of sufficient combustion is entered in burner hearth again, and it can reduce the efficiency of second-time burning.
Utility model content
The purpose of this utility model be to provide a kind of sufficient combustion, efficiency high, control and overhaul the energy-conservation EGR of smoke comprehensive easily.
The utility model can be achieved through the following technical solutions:
A kind of boiler smoke synthesis energy saving EGR, comprise boiler body, body of heater pipe and heat exchanger, described boiler body is communicated with heat exchanger by body of heater pipe, EGR is provided with between described heat exchanger and boiler body, the top of described heat exchanger is provided with flue gas escape pipe, described EGR comprises circulation house steward, First air circulation pipe and Secondary Air circulation pipe, described circulation house steward is connected with First air circulation pipe and Secondary Air circulation pipe by threeway, First air circulation pipe is communicated with circulation house steward with one end of Secondary Air circulation pipe, the other end is communicated with boiler body, Secondary Air circulation pipe is positioned at the top of First air circulation pipe, First air circulation pipe is provided with First air air-valve and First air blower fan successively from the one end be connected with circulation house steward, Secondary Air circulation pipe is provided with Secondary Air air-valve and Secondary Air blower fan successively from the one end be connected with circulation house steward.The setting of EGR and heat exchanger top flue gas escape pipe, the flue gas of sufficient combustion is directly discharged through flue gas escape pipe, the sufficient flue gas of unburned is back to EGR after blocking by flue gas escape pipe after heat exchanger heat exchange, send into boiler body by EGR and carry out circulating combustion, its sufficient combustion, efficiency is high, energy-conserving and environment-protective; The parallel-connection structure of EGR First air circulation pipe and Secondary Air circulation pipe is arranged, and namely First air circulation pipe and secondary cycle pipe can be opened simultaneously, also can open one of them, and another is closed, and controls convenient, flexible, easy access simultaneously; Above-mentioned boiler smoke synthesis energy saving EGR structure is simple, rationally distributed, takes up room little.
Further, First air fresh wind tube is provided with between described First air air-valve and First air blower fan, First air fresh wind tube is provided with the new air-valve of First air, is provided with Secondary Air fresh wind tube between described Secondary Air air-valve and Secondary Air blower fan, and Secondary Air fresh wind tube is provided with the new air-valve of Secondary Air.The setting of the new air-valve of First air fresh wind tube, First air and Secondary Air fresh wind tube, the new air-valve of Secondary Air, makes new wind constantly enter boiler body, and make the oxygen in boiler body sufficient, fuel combustion is abundant, and efficiency is high.
Further, described heat exchanger comprises header tank, body and some heat exchanger tubes, the both sides of described body are equipped with header tank, described heat exchanger tube is communicated with header tank, some heat exchanger tubes are in tilted layout side by side on the header tank of both sides, heat exchanger tube on the header tank of both sides is symmetrically set centered by body, and certain interval is left in centre.The setting of heat exchanger, heat flue gas recirculation being utilized produce in process carries out heat exchange by heat exchanger, utilizes its heat to heat water in header tank, may be used for bathing or heating, make full use of fume afterheat, energy-conserving and environment-protective.
Further, described heat exchanger tube is finned heat superconducting heat exchanger tube, and heat transfer area is large, and heat exchange efficiency is high.
The utility model boiler smoke synthesis energy saving EGR, compared with prior art, has following beneficial effect:
First, flue gas recycles, energy-conserving and environment-protective, the setting of EGR and heat exchanger top flue gas escape pipe, the flue gas of sufficient combustion is directly discharged through flue gas escape pipe, the sufficient flue gas of unburned is back to EGR after blocking by flue gas escape pipe after heat exchanger heat exchange, send into boiler body by EGR and carry out circulating combustion, the sufficient flue gas of unburned makes the water in header tank be heated through heat exchanger heat exchange, water after heating may be used for bathing and/or heating, fume afterheat makes full use of, not only make burning sufficient combustion, and energy-conserving and environment-protective, reduce the pollution to air,
The second, sufficient combustion, efficiency are high, the setting of EGR and heat exchanger top flue gas escape pipe, the flue gas of sufficient combustion is directly discharged through flue gas escape pipe, the sufficient flue gas of unburned is back to EGR after blocking by flue gas escape pipe after heat exchanger heat exchange, send into boiler body by EGR and carry out circulating combustion, its sufficient combustion, efficiency is high;
Three, control conveniently, flexibly, easy access, the parallel-connection structure of First air circulation pipe and Secondary Air circulation pipe is arranged, namely First air circulation pipe and secondary cycle pipe can be opened simultaneously, also can open one of them, and another is closed, control convenient, flexible, easy access simultaneously;
Four, structure is simple, rationally distributed, the parallel-connection structure of First air circulation pipe, Secondary Air circulation pipe is arranged, and Secondary Air circulation pipe is located at the top of First air circulation pipe, and the setting of heat exchanger top flue gas escape pipe, structure is simple, rationally distributed, take up room little, and make fuel combustion abundant, efficiency is high.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model boiler smoke synthesis energy saving EGR;
Reference numeral is: 1, boiler body, 2, body of heater pipe, 3, flue gas escape pipe, 4, heat exchanger tube, 5, header tank, 6, body, 7, circulation house steward, 8, First air circulation pipe, 9, First air blower fan, 10, the new air-valve of First air, 11, First air fresh wind tube, 12, First air air-valve, 13, Secondary Air circulation pipe, 14, Secondary Air fresh wind tube, 15, the new air-valve of Secondary Air, 16, Secondary Air blower fan, 17, Secondary Air air-valve.
Detailed description of the invention
In order to make those skilled in the art person understand the technical solution of the utility model better, below in conjunction with embodiment and accompanying drawing, the utility model product is described in further detail.
As shown in Figure 1, a kind of boiler smoke synthesis energy saving EGR, comprise boiler body 1, body of heater pipe 3 and heat exchanger, described boiler body 1 is communicated with heat exchanger by body of heater pipe 2, EGR is provided with between described heat exchanger and boiler body 1, the top of described heat exchanger is provided with flue gas escape pipe 3, described EGR comprises circulation house steward 7, First air circulation pipe 8 and Secondary Air circulation pipe 13, described circulation house steward 7 is connected with First air circulation pipe 8 and Secondary Air circulation pipe 13 by threeway, First air circulation pipe 8 is communicated with circulation house steward 7 with one end of Secondary Air circulation pipe 13, the other end is communicated with boiler body 1, Secondary Air circulation pipe 13 is positioned at the top of First air circulation pipe 8, First air circulation pipe 8 is provided with First air air-valve 12 and First air blower fan 9 successively from the one end be connected with circulation house steward 7, Secondary Air circulation pipe 13 is provided with Secondary Air air-valve 17 and Secondary Air blower fan 16 successively from the one end be connected with circulation house steward 7, First air fresh wind tube 11 is provided with between described First air air-valve 12 and First air blower fan 9, First air fresh wind tube 11 is provided with the new air-valve 10 of First air, Secondary Air fresh wind tube 14 is provided with between described Secondary Air air-valve 17 and Secondary Air blower fan 16, Secondary Air fresh wind tube 14 is provided with the new air-valve 15 of Secondary Air, described heat exchanger comprises header tank 5, body 6 and some heat exchanger tubes 4, described heat exchanger tube 4 is finned heat superconducting heat exchanger tube, the both sides of described body 6 are equipped with header tank 5, described heat exchanger tube 4 is communicated with header tank 5, some heat exchanger tubes 4 are in tilted layout side by side on the header tank 5 of both sides, heat exchanger tube 4 on both sides header tank 5 is symmetrically set centered by body 6, certain interval is left in centre.
The above, be only preferred embodiment of the present utility model, not does any pro forma restriction to the utility model; The those of ordinary skill of all industry all can shown in by specification accompanying drawing and the above and implement the utility model swimmingly; But all those skilled in the art are not departing within the scope of technical solutions of the utility model, disclosed above technology contents can be utilized and make a little change, modify with differentiation equivalent variations, be Equivalent embodiments of the present utility model; Meanwhile, all according to substantial technological of the present utility model to the change of any equivalent variations that above embodiment is done, modify and differentiation etc., within the protection domain all still belonging to the technical solution of the utility model.
Claims (4)
1. a boiler smoke synthesis energy saving EGR, comprise boiler body (1), body of heater pipe (3) and heat exchanger, described boiler body (1) is communicated with heat exchanger by body of heater pipe (2), it is characterized in that: between described heat exchanger and boiler body (1), be provided with EGR, the top of described heat exchanger is provided with flue gas escape pipe (3), described EGR comprises circulation house steward (7), First air circulation pipe (8) and Secondary Air circulation pipe (13), described circulation house steward (7) is connected with First air circulation pipe (8) and Secondary Air circulation pipe (13) by threeway, First air circulation pipe (8) is communicated with circulation house steward (7) with one end of Secondary Air circulation pipe (13), the other end is communicated with boiler body (1), Secondary Air circulation pipe (13) is positioned at the top of First air circulation pipe (8), First air circulation pipe (8) is provided with First air air-valve (12) and First air blower fan (9) successively from the one end be connected with circulation house steward (7), Secondary Air circulation pipe (13) is provided with Secondary Air air-valve (17) and Secondary Air blower fan (16) successively from the one end be connected with circulation house steward (7).
2. boiler smoke synthesis energy saving EGR according to claim 1, it is characterized in that: between described First air air-valve (12) and First air blower fan (9), be provided with First air fresh wind tube (11), First air fresh wind tube (11) is provided with the new air-valve of First air (10), be provided with Secondary Air fresh wind tube (14) between described Secondary Air air-valve (17) and Secondary Air blower fan (16), Secondary Air fresh wind tube (14) is provided with the new air-valve of Secondary Air (15).
3. boiler smoke synthesis energy saving EGR according to claim 2, it is characterized in that: described heat exchanger comprises header tank (5), body (6) and some heat exchanger tubes (4), the both sides of described body (6) are equipped with header tank (5), described heat exchanger tube (4) is communicated with header tank (5), some heat exchanger tubes (4) are in tilted layout side by side on the header tank (5) of both sides, heat exchanger tube (4) on both sides header tank (5) is symmetrically set centered by body (6), and certain interval is left in centre.
4. boiler smoke synthesis energy saving EGR according to claim 3, is characterized in that: described heat exchanger tube (4) is finned heat superconducting heat exchanger tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629690.2U CN204213904U (en) | 2014-10-29 | 2014-10-29 | A kind of boiler smoke synthesis energy saving EGR |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629690.2U CN204213904U (en) | 2014-10-29 | 2014-10-29 | A kind of boiler smoke synthesis energy saving EGR |
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| CN204213904U true CN204213904U (en) | 2015-03-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864376A (en) * | 2015-05-28 | 2015-08-26 | 华北水利水电大学 | Heat-pipe type falling film evaporation low-temperature waste heat utilization and water recovery equipment |
| CN105650620A (en) * | 2016-03-17 | 2016-06-08 | 马维珍 | Layer-burning boiler flue gas recirculation free of recirculation fan drive and regulation control system of flue gas recirculation |
| CN105757649A (en) * | 2016-04-27 | 2016-07-13 | 镇江威孚锅炉有限公司 | Energy-saving device for coal-fired boiler |
-
2014
- 2014-10-29 CN CN201420629690.2U patent/CN204213904U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864376A (en) * | 2015-05-28 | 2015-08-26 | 华北水利水电大学 | Heat-pipe type falling film evaporation low-temperature waste heat utilization and water recovery equipment |
| CN104864376B (en) * | 2015-05-28 | 2017-04-26 | 华北水利水电大学 | Heat-pipe type falling film evaporation low-temperature waste heat utilization and water recovery equipment |
| CN105650620A (en) * | 2016-03-17 | 2016-06-08 | 马维珍 | Layer-burning boiler flue gas recirculation free of recirculation fan drive and regulation control system of flue gas recirculation |
| CN105757649A (en) * | 2016-04-27 | 2016-07-13 | 镇江威孚锅炉有限公司 | Energy-saving device for coal-fired boiler |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhixiong Inventor after: Zhang Qingchun Inventor before: Wang Zhixiong |
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| COR | Change of bibliographic data | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Two building, 516200 Donghua Avenue, Huiyang District, Guangdong, Huizhou Patentee after: GUANGDONG TUOFENG INDUSTRIAL CO., LTD. Address before: Two building, 516200 Donghua Avenue, Huiyang District, Guangdong, Huizhou Patentee before: HUIZHOU TUOFENG INDUSTRIAL CO., LTD. |