CN213362526U - Waste heat recovery recycles device for thermal power plant - Google Patents
Waste heat recovery recycles device for thermal power plant Download PDFInfo
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- CN213362526U CN213362526U CN202022409841.1U CN202022409841U CN213362526U CN 213362526 U CN213362526 U CN 213362526U CN 202022409841 U CN202022409841 U CN 202022409841U CN 213362526 U CN213362526 U CN 213362526U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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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 waste heat recycling device for a thermal power plant relates to the technical field of energy conservation and environmental protection, and comprises a flue gas pipeline, a heat exchange box body, a heat exchange module and a shielding cover; the top of the heat exchange box body is open, the bottom of the heat exchange box body is hermetically communicated with a smoke outlet of a smoke pipeline, and one side of the bottom of the heat exchange box body, which corresponds to the smoke pipeline, is communicated with one end of a drainage interface; a shielding cover is arranged in the heat exchange box body corresponding to the smoke outlet of the smoke pipeline, the shielding cover is of a conical structure, the diameter of the large end of the shielding cover is larger than that of the smoke outlet of the smoke pipeline, a plurality of openings are annularly arranged at intervals on the pipe body at the position where the smoke pipeline and the shielding cover are correspondingly connected, and the bottom edge of each opening is higher than the inner bottom surface of the heat exchange box body; a plurality of groups of heat exchange modules are obliquely arranged in the heat exchange box body from top to bottom; the utility model discloses effectively solved current waste heat recovery and recycle device structure complicacy, maintained inconvenient problem.
Description
Technical Field
The utility model belongs to the technical field of energy-concerving and environment-protective technique and specifically relates to a waste heat recovery recycles device for thermal power plant is related to.
Background
As is known, a thermal power plant mainly uses natural gas or coal as energy to heat a boiler, steam in the boiler pushes a steam turbine, the steam turbine drives a generator to generate electricity, and it can be known from various heat losses of the boiler that the heat loss of exhaust smoke is the largest one of the heat losses, generally 5 to 8% of the boiler efficiency, and with the increase of the operating life of the boiler, the loss is even higher, which can reach about 10 to 15%, so the flue gas waste heat recovery technology is the most obvious energy-saving technology with the most obvious and quick effect, and recycles part of energy in the exhaust smoke loss, thereby improving the boiler efficiency, further improving the energy utilization rate, reducing the production cost, reducing pollutant discharge, protecting the environment most directly and economically, and therefore, various waste heat recovery and reuse devices for flue gas appear in the market, but most of the existing waste heat recovery and reuse devices have complex structures, the use cost is high, and the later maintenance operation is complex, and this phenomenon is a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In order to overcome not enough among the background art, the utility model discloses a waste heat recovery recycles device for thermal power plant.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a waste heat recycling device for a thermal power plant comprises a flue gas pipeline, a heat exchange box body, a heat exchange module and a shielding cover; the top of the heat exchange box body is open, the bottom of the heat exchange box body is hermetically communicated with a smoke outlet of a smoke pipeline, and one side of the bottom of the heat exchange box body, which corresponds to the smoke pipeline, is communicated with one end of a drainage interface; a shielding cover is arranged in the heat exchange box body corresponding to the smoke outlet of the smoke pipeline, the shielding cover is of a conical structure, the diameter of the large end of the shielding cover is larger than that of the smoke outlet of the smoke pipeline, a plurality of openings are annularly arranged at intervals on the pipe body at the position where the smoke pipeline and the shielding cover are correspondingly connected, and the bottom edge of each opening is higher than the inner bottom surface of the heat exchange box body; a plurality of groups of heat exchange modules are obliquely arranged in the heat exchange box body from top to bottom, a gap is reserved between one end of each heat exchange module and the inner wall of the heat exchange box body, and two adjacent groups of heat exchange modules are correspondingly staggered; the heat exchange module comprises a heat exchange tube, a support frame and a fixing frame, the fixing frame is correspondingly and fixedly connected with the inner wall of the heat exchange box body, a plurality of support frames are sequentially inserted into the fixing frame from top to bottom, a notch for drawing out the support frame is formed in the position, corresponding to the drawing-out end of the support frame, of the heat exchange box body, and the drawing-out end of the support frame is correspondingly and hermetically connected with the corresponding notch of the heat exchange box; the heat exchange device is characterized in that S-shaped heat exchange tubes are arranged in the support frame, water inlets and water outlets of the heat exchange tubes are located at the extraction ends of the support frame, the water inlets of the heat exchange tubes located on the upper layer and the water outlets of the heat exchange tubes located on the lower layer in the two adjacent heat exchange tubes are correspondingly communicated through pipe joints, and the pipe joints are located outside the heat exchange box body.
Preferably, the water inlet of the heat exchange module on the upper layer in the two adjacent groups of heat exchange modules is correspondingly communicated with the water outlet of the heat exchange module on the lower layer.
Preferably, the central position in the bottom of the shielding cover is provided with an inverted cone-shaped air guide sleeve, and the diameter of the large head end of the air guide sleeve is smaller than or equal to the inner diameter of the smoke outlet of the smoke pipeline.
Preferably, the heat exchange module is inclined by 15-20 degrees.
Preferably, the water inlet of the heat exchange tube on the upper layer and the water outlet of the heat exchange tube on the lower layer in the two adjacent heat exchange tubes are positioned on the same side of the corresponding heat exchange module.
Preferably, a plurality of fins are uniformly distributed on the tube body of the heat exchange tube.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a waste heat recycling device for thermal power plants, which has simple structure, easy assembly and lower production cost; the support frames are correspondingly inserted with the fixing frame, the positions, corresponding to the support frames, of the heat exchange box bodies are provided with notches for drawing the support frames out, the drawing ends of the support frames are correspondingly and hermetically connected with the corresponding notches of the heat exchange box bodies, namely, operators can regularly draw the corresponding support frames, so that the heat exchange tube bodies can be cleaned or maintained, and the heat exchange effect is reduced due to the fact that a large amount of smoke dust is accumulated on the heat exchange tube bodies; the interval is left between heat transfer module's one end and the heat transfer box inner wall, and two sets of adjacent heat transfer modules correspond staggered arrangement, can avoid the heat transfer module to produce great resistance to the circulation of the internal flue gas of heat transfer box, lead to the internal flue gas circulation of heat transfer box not smooth.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a heat exchange module;
fig. 3 is a schematic structural view of a heat exchange tube.
In the figure: 1. a flue gas duct; 2. a heat exchange box body; 3. a heat exchange module; 3-1, heat exchange tubes; 3-2, a support frame; 3-3, fixing frames; 4. a shield cover; 5. an opening; 6. a water drainage interface; 7. a pipe joint; 8. and a flow guide cover.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
With reference to the attached drawings 1-3, the waste heat recycling device for the thermal power plant comprises a flue gas pipeline 1, a heat exchange box body 2, a heat exchange module 3 and a shielding cover 4; the top of the heat exchange box body 2 is open, the bottom of the heat exchange box body 2 is hermetically communicated with a smoke outlet of the smoke pipeline 1, one side of the bottom of the heat exchange box body 2, which corresponds to the smoke pipeline 1, is communicated with one end of a drainage interface 6, namely, condensed water in the heat exchange box body 2 can be discharged through the drainage interface 6; a shielding cover 4 is arranged in the heat exchange box body 2 corresponding to the smoke outlet of the smoke pipeline 1, the shielding cover 4 is of a conical structure, the diameter of the large end of the shielding cover 4 is larger than that of the smoke outlet of the smoke pipeline 1, a plurality of openings 5 are annularly arranged at intervals on the pipe body of the smoke pipeline 1 and the shielding cover 4 corresponding to the connecting position, the bottom edge of each opening 5 is higher than the inner bottom surface of the heat exchange box body 2, namely, smoke in the smoke pipeline 1 can enter the heat exchange box body 2 through the openings 5 and is discharged from an opening at the top of the heat exchange box body 2, and the shielding cover 4 can effectively prevent condensed water in the heat exchange box body 2 from entering the smoke pipeline 1, so that the smoke pipeline 1 is corroded and damaged; according to the requirement, the baffle cover 4 is provided with an inverted cone-shaped guide cover 8 at the central position of the bottom, the diameter of the large head end of the guide cover 8 is smaller than or equal to the inner diameter of the smoke outlet of the smoke pipeline 1, namely, the flow direction of smoke in the smoke pipeline 1 can be changed through the guide cover 8, and the smoke is prevented from gathering in the baffle cover 4;
a plurality of groups of heat exchange modules 3 are obliquely arranged in the heat exchange box body 2 from top to bottom; according to the requirement, the heat exchange module 3 is arranged in an inclined manner by 15-20 degrees; an interval is reserved between one end of each heat exchange module 3 and the inner wall of the heat exchange box body 2, and the two adjacent heat exchange modules 3 are correspondingly staggered, so that the heat exchange modules 3 can be prevented from generating large resistance to the circulation of the flue gas in the heat exchange box body 2, and the flue gas in the heat exchange box body 2 is prevented from flowing smoothly; the heat exchange module 3 comprises a heat exchange tube 3-1, a support frame 3-2 and a fixing frame 3-3, the fixing frame 3-3 is correspondingly and fixedly connected with the inner wall of the heat exchange box body 2, the plurality of support frames 3-2 are sequentially inserted into the fixing frame 3-3 from top to bottom, a notch for drawing out the support frame 3-2 is formed in the position, corresponding to the drawing-out end of the support frame 3-2, of the heat exchange box body 2, and the drawing-out end of the support frame 3-2 is correspondingly and hermetically connected with the corresponding notch of the heat exchange box body 2; an S-shaped heat exchange tube 3-1 is arranged in the support frame 3-2, a water inlet and a water outlet of the heat exchange tube 3-1 are both positioned at the extraction end of the support frame 3-2, a water inlet of the heat exchange tube 3-1 positioned at the upper layer of the two adjacent heat exchange tubes 3-1 is correspondingly communicated with a water outlet of the heat exchange tube 3-1 positioned at the lower layer through a pipeline joint 7, and the pipeline joint 7 is positioned outside the heat exchange box body 2, namely an operator can regularly remove the pipeline joint 7 and extract the corresponding support frame 3-2, so that the tube body of the heat exchange tube 3-1 can be cleaned or maintained conveniently, and the heat exchange effect is prevented from being reduced due to the fact that a large amount of smoke dust is gathered on;
in addition, the water inlet of the heat exchange module 3 positioned at the upper layer in the two adjacent groups of heat exchange modules 3 is correspondingly communicated with the water outlet of the heat exchange module 3 positioned at the lower layer, namely the heat exchange modules 3 in the heat exchange box body 2 are sequentially connected in series from bottom to top, so that the retention time of water flow in the heat exchange tube 3-1 in the heat exchange box body 2 can be effectively prolonged, and the heat exchange effect is effectively improved; the water inlet of the heat exchange tube 3-1 positioned on the upper layer and the water outlet of the heat exchange tube 3-1 positioned on the lower layer in the two adjacent heat exchange tubes 3-1 are positioned on the same side of the corresponding heat exchange module 3, so that the installation of the pipeline joint 7 can be facilitated, and the assembly difficulty is reduced; the heat exchange tube 3-1 shaft equipartition has a plurality of fins, and the fin can effectively increase the heated area of heat exchange tube 3-1 to promote heat exchange efficiency.
When the waste heat recycling device for the thermal power plant is implemented, water flow is introduced into the heat exchange tube 3-1 during use, and the water flow flows in from the heat exchange module 3 at the bottom of the heat exchange box body 2 and flows out from the heat exchange module 3 at the top of the heat exchange box body 2, so that high-temperature flue gas can be introduced into the heat exchange box body 2 through the flue gas pipeline 1, and the high-temperature flue gas is contacted with the tube body of the heat exchange tube 3-1 to achieve the purpose of heat exchange; in addition, an operator can remove the pipeline joint 7 regularly and draw out the corresponding support frame 3-2, so that the pipe body of the heat exchange pipe 3-1 can be cleaned or maintained, and the heat exchange effect is prevented from being reduced due to the fact that a large amount of smoke dust is accumulated on the pipe body of the heat exchange pipe 3-1.
The part of the utility model not detailed is prior art.
Claims (6)
1. The utility model provides a waste heat recovery recycles device for thermal power plant, contains flue gas pipeline (1), characterized by: the heat exchanger also comprises a heat exchange box body (2), a heat exchange module (3) and a shielding cover (4); the top of the heat exchange box body (2) is open, the bottom of the heat exchange box body (2) is hermetically communicated with a smoke outlet of the flue gas pipeline (1), and one side of the bottom of the heat exchange box body (2) corresponding to the flue gas pipeline (1) is communicated with one end of a drainage interface (6); a shielding cover (4) is arranged in the heat exchange box body (2) corresponding to the smoke outlet of the smoke pipeline (1), the shielding cover (4) is of a conical structure, the diameter of the large end of the shielding cover (4) is larger than that of the smoke outlet of the smoke pipeline (1), a plurality of openings (5) are formed in the pipe body of the smoke pipeline (1) and the shielding cover (4) at the corresponding connecting position in an annular mode at intervals, and the bottom edge of each opening (5) is higher than the inner bottom surface of the heat exchange box body (2); a plurality of groups of heat exchange modules (3) are obliquely arranged in the heat exchange box body (2) from top to bottom, a gap is reserved between one end of each heat exchange module (3) and the inner wall of the heat exchange box body (2), and two adjacent groups of heat exchange modules (3) are correspondingly staggered; the heat exchange module (3) comprises a heat exchange tube (3-1), a support frame (3-2) and a fixing frame (3-3), the fixing frame (3-3) is correspondingly and fixedly connected with the inner wall of the heat exchange box body (2), a plurality of support frames (3-2) are sequentially inserted into the fixing frame (3-3) from top to bottom, a gap for drawing out the support frame (3-2) is formed in the position, corresponding to the drawing-out end of the support frame (3-2), of the heat exchange box body (2), and the drawing-out end of the support frame (3-2) is correspondingly and hermetically connected with the corresponding gap of the heat exchange box body (2); the heat exchange tube (3-1) is arranged in the support frame (3-2) in an S shape, a water inlet and a water outlet of each heat exchange tube (3-1) are both located at the extraction end of the support frame (3-2), the water inlet of the heat exchange tube (3-1) located on the upper layer in the adjacent two heat exchange tubes (3-1) is correspondingly communicated with the water outlet of the heat exchange tube (3-1) located on the lower layer through a pipeline joint (7), and the pipeline joint (7) is located outside the heat exchange box body (2).
2. The waste heat recovery and reuse apparatus for thermal power plant as claimed in claim 1, characterized in that: the water inlet of the heat exchange module (3) on the upper layer in the two adjacent groups of heat exchange modules (3) is correspondingly communicated with the water outlet of the heat exchange module (3) on the lower layer.
3. The waste heat recovery and reuse apparatus for thermal power plant as claimed in claim 1, characterized in that: the central position of the bottom of the shielding cover (4) is provided with an inverted cone-shaped guide cover (8), and the diameter of the large head end of the guide cover (8) is smaller than or equal to the inner diameter of the smoke outlet of the smoke pipeline (1).
4. The waste heat recovery and reuse apparatus for thermal power plant as claimed in claim 1, characterized in that: the heat exchange module (3) is inclined by 15-20 degrees.
5. The waste heat recovery and reuse apparatus for thermal power plant as claimed in claim 1, characterized in that: the water inlet of the heat exchange tube (3-1) on the upper layer and the water outlet of the heat exchange tube (3-1) on the lower layer in the two adjacent heat exchange tubes (3-1) are positioned on the same side of the corresponding heat exchange module (3).
6. The waste heat recovery and reuse apparatus for thermal power plant as claimed in claim 1, characterized in that: the tube body of the heat exchange tube (3-1) is uniformly distributed with a plurality of fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202022409841.1U CN213362526U (en) | 2020-10-27 | 2020-10-27 | Waste heat recovery recycles device for thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022409841.1U CN213362526U (en) | 2020-10-27 | 2020-10-27 | Waste heat recovery recycles device for thermal power plant |
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| CN213362526U true CN213362526U (en) | 2021-06-04 |
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| CN202022409841.1U Active CN213362526U (en) | 2020-10-27 | 2020-10-27 | Waste heat recovery recycles device for thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777548A (en) * | 2022-06-21 | 2022-07-22 | 靖江市亚泰特种材料制造有限公司 | Forced ventilation heat dissipation and heat recovery device for fan |
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2020
- 2020-10-27 CN CN202022409841.1U patent/CN213362526U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777548A (en) * | 2022-06-21 | 2022-07-22 | 靖江市亚泰特种材料制造有限公司 | Forced ventilation heat dissipation and heat recovery device for fan |
| CN114777548B (en) * | 2022-06-21 | 2023-12-26 | 靖江市亚泰特种材料制造有限公司 | Forced ventilation heat dissipation and heat recovery device for fan |
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