CN105043138A - Flue gas waste heat recovery system - Google Patents
Flue gas waste heat recovery system Download PDFInfo
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- CN105043138A CN105043138A CN201510448423.4A CN201510448423A CN105043138A CN 105043138 A CN105043138 A CN 105043138A CN 201510448423 A CN201510448423 A CN 201510448423A CN 105043138 A CN105043138 A CN 105043138A
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- flue gas
- heat exchanger
- cold water
- memory cell
- hot water
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a flue gas waste heat recovery system. The flue gas waste heat recovery system comprises a heat exchanger, a flue gas inlet device, a cold water storage unit and a hot water storage unit. The heat exchanger comprises a flue gas inlet, a flue gas outlet, multiple concentrically-arranged spiral pipes and a controller. The flue gas inlet device is a gas inlet pipeline having a flue gas regulation valve. The cold water storage unit is a sealing cavity with a cold water inlet. The cold water inlet is externally connected with a cold water pipeline. One end of the cold water storage unit is correspondingly connected with one ends of the spiral pipes by means of a water inlet pipe. The water inlet pipe is provided with a flow regulation valve. The hot water storage unit is a sealing cavity with a connecting hole. The connecting hole is correspondingly connected with the other ends of the spiral pipes. The bottom of the hot water storage unit is provided with a hot water outlet connected with a hot water pipe. The flue gas waste heat recovery system is simple and reasonable in structure and high in heat exchange efficiency and capable of effectively preventing equipment against low-temperature corrosion.
Description
Technical field
The present invention relates to a kind of waste heat recovery field, be specifically related to a kind of flue gas waste heat recovery system improving flue gas utilization rate.
Background technology
At present, flue gas is the main path of general energy consumption equipment waste energy, and such as boiler exhaust gas power consumption is large about 15%, and the main power consumption such as the forming machine of other equipment such as dyeing, dryer and kiln is all pass through fume emission.
In society, energy-conservation " the 5th energy " become after coal, electric power, oil and natural gas.And ubiquity under heat utilization ratio in the use of present Industrial Boiler, residual heat of exhaust flue gas temperature is too high, and the problem such as flue gas internal contamination environmental gas too high levels.Current Industrial Boiler be China main thermal power equipment, along with I crosses rapid economic development, energy resource consumption increases day by day, and the problem that urban air quality goes from bad to worse is outstanding all the more.Thermal power aspect energy consumption is high, pollute the fume emission that high one of the main reasons is exactly boiler, and boiler exhaust gas problem is the direct pollution of flue gas pollutant on the one hand, is exactly too high exhaust gas temperature on the other hand.
At present, the structure of the flue gas waste heat recovery apparatus on market adopts usually: the import and export of offering smoke entrance and heated medium on collection smoke box, in collection smoke box, some rows radiating tube mutually arranged side by side is set, after flue gas enters from gas approach, discharge to flue gas exhaust mouth through radiating tube, heated medium enters from heated medium import, realizes exchange heat after contacting with radiating tube, discharge from heated medium outlet, to realize the recycling of fume afterheat.
The patent No. 201020507826.4, the patent of invention that name is called " flue gas waste heat recovery apparatus " discloses one and installs radiating fin additional by radiating tube, to increase the area of dissipation of heat exchanger tube, thus improves the heat exchanger effectiveness of radiating tube and heated medium.
The patent No. 20101016718.6, name is called that the patent of invention of " a kind of efficient heat conducting tube recycling fume waste heat exchange device " is disclosed one and conducted heat by vertical coiled pipe, add heat exchange area, and increase the disturbance of flue gas and the holdup time in flue, reach the object improving heat exchanger effectiveness.
Although above-mentioned higher than common flue gas waste heat recovery apparatus heat exchanger effectiveness, but still there is processed complex, the defect that production cost is higher.
Summary of the invention
What the present invention will solve remembers that problem is to provide a kind of structure simply, the flue gas waste heat recovery system that heat recovery efficiency is high.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of flue gas waste heat recovery system, its innovative point is: comprise heat exchanger, flue gas inlet duct, cold water memory cell and hot water memory cell;
Described heat exchanger comprises gas approach, exhanst gas outlet, the spiral coil of some concentric settings and controller; Described gas approach is arranged at the lower end of heat exchanger sidewall, connects flue gas inlet duct; Described exhanst gas outlet is arranged at the upper end of heat exchanger sidewall, connects fume dust remover; The outer wall of described spiral coil arranges a temperature sensor, and described controller is installed on the outer wall of heat exchanger, is connected with temperature sensor;
Described flue gas inlet duct is an admission line;
Described cold water memory cell is a seal chamber, has cooling water inlet, the external cold water pipes of cooling water inlet, and cold water memory cell one end connects by water inlet pipe is corresponding with one end of spiral coil, and water inlet pipe arranges flow control valve;
Described hot water memory cell is a seal chamber being provided with connecting hole, and described connecting hole is corresponding with the other end of spiral coil to be connected, and is provided with hot water outlet, is connected with hot-water line bottom hot water memory cell.
Further, two spiral coils arranged with one heart are installed in described heat exchanger.
Further, described admission line arranges smoke regulating valve.
The present invention is simple and reasonable, and heat exchanger components adopts spiral coil, passes into water, decrease the pipeline axial displacement because water impact causes in spiral coil, simultaneously the also a small amount of lateral displacement of Absorbable rod, reduces vibration equipment to the impact of pipeline; Spiral coil is compared with the straight-through structure that detours, and flow path is elongated, thus increases endotherm area, improves thermal conversion efficiency; Due to automatically cold water flow can be controlled, ensure that heat exchanger heating surface temperature reveals sour point higher than flue gas all the time, avoid heat exchanger generation cold end corrosion.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is elaborated.
A kind of flue gas waste heat recovery system as shown in Figure 1, comprises heat exchanger 1, flue gas inlet duct 2, cold water memory cell 3 and hot water memory cell 4;
The spiral coil 13 that heat exchanger 1 comprises gas approach 11, exhanst gas outlet 12, two is arranged with one heart and controller 14; Gas approach 11 is arranged at the lower end of heat exchanger 1 sidewall, connects flue gas inlet duct 2; Exhanst gas outlet 12 is arranged at the upper end of heat exchanger 1 sidewall, connects fume dust remover 5; The outer wall of spiral coil 13 arranges a temperature sensor 15, and controller 14 is installed on the outer wall of heat exchanger 1, is connected with temperature sensor 15;
Flue gas inlet duct 2 is an admission line, described admission line is arranged smoke regulating valve 21;
Cold water memory cell 3 one seal chamber, has cooling water inlet 31, the external cold water pipes 6 of cooling water inlet, and cold water memory cell 3 one end connects by water inlet pipe 32 is corresponding with one end of spiral coil 13, water inlet pipe 32 is arranged flow control valve 7;
Hot water memory cell 4 is a seal chamber being provided with connecting hole 41, and described connecting hole 41 is corresponding with the other end of spiral coil 7 to be connected, and is provided with hot water outlet 42, is connected with hot-water line 8 bottom hot water memory cell 4.
Operation principle: high-temperature flue gas enters heat exchanger by flue gas inlet duct, simultaneously, water enters cold water memory cell from inlet channel, then enter in the spiral coil of heat exchanger, cooling water flows downward in spiral coil, and the high-temperature flue gas entering heat exchanger upwards flows, thus carry out heat exchange, spiral coil Nei is Ji the heated water of Eng enters hot water memory cell; The temperature sensor of spiral coil outer wall detects the wall temperature of spiral coil, ensures wall temperature all the time higher than the dew acid point of flue gas, when wall temperature lower than the dew acid point of flue gas is, by regulating Flow-rate adjustment valve regulation water inlet pipe arranged on flow control valve and admission line.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a flue gas waste heat recovery system, is characterized in that: comprise heat exchanger, flue gas inlet duct, cold water memory cell and hot water memory cell;
Described heat exchanger comprises gas approach, exhanst gas outlet, the spiral coil of some concentric settings and controller; Described gas approach is arranged at the lower end of heat exchanger sidewall, connects flue gas inlet duct; Described exhanst gas outlet is arranged at the upper end of heat exchanger sidewall, connects fume dust remover; The outer wall of described spiral coil arranges a temperature sensor, and described controller is installed on the outer wall of heat exchanger, is connected with temperature sensor;
Described flue gas inlet duct is an admission line;
Described cold water memory cell is a seal chamber, has cooling water inlet, the external cold water pipes of cooling water inlet, and cold water memory cell one end connects by water inlet pipe is corresponding with one end of spiral coil, and water inlet pipe arranges flow control valve;
Described hot water memory cell is a seal chamber being provided with connecting hole, and described connecting hole is corresponding with the other end of spiral coil to be connected, and is provided with hot water outlet, is connected with hot-water line bottom hot water memory cell.
2. a kind of flue gas waste heat recovery system according to claim 1, is characterized in that: be provided with two spiral coils arranged with one heart in described heat exchanger.
3. a kind of flue gas waste heat recovery system according to claim 1, is characterized in that: described admission line arranges smoke regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448423.4A CN105043138A (en) | 2015-07-27 | 2015-07-27 | Flue gas waste heat recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448423.4A CN105043138A (en) | 2015-07-27 | 2015-07-27 | Flue gas waste heat recovery system |
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| CN105043138A true CN105043138A (en) | 2015-11-11 |
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| CN201510448423.4A Pending CN105043138A (en) | 2015-07-27 | 2015-07-27 | Flue gas waste heat recovery system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889964A (en) * | 2015-12-22 | 2016-08-24 | 江苏卓易环保科技有限公司 | Boiler waste gas waste heat cyclic utilization system |
| CN106591601A (en) * | 2017-01-19 | 2017-04-26 | 贵州大学 | Waste heat recovery device of production equipment for preparing titanium sponge through magnesiothermy |
| CN106838956A (en) * | 2017-01-13 | 2017-06-13 | 安徽未名鼎和环保有限公司 | A kind of refuse burner exhaust gas processing device |
| CN106834746A (en) * | 2017-01-19 | 2017-06-13 | 贵州大学 | A kind of forced convertion magnesiothermy titanium sponge production also original system of recyclable waste heat |
| CN106916967A (en) * | 2017-01-19 | 2017-07-04 | 贵州大学 | A kind of magnesiothermy prepares the waste heat recovery analysis system of titanium sponge production equipment |
| CN106959024A (en) * | 2017-04-19 | 2017-07-18 | 山东海益化工科技有限公司 | A kind of flue gas waste heat recovery apparatus |
| CN109059582A (en) * | 2018-10-10 | 2018-12-21 | 海南汉地阳光石油化工有限公司 | A kind of heat-exchanger rig |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726109B (en) * | 2009-11-27 | 2013-01-16 | 广东诺科冷暖设备有限公司 | High-efficiency condensing type heat exchanger |
| CN202836273U (en) * | 2012-08-15 | 2013-03-27 | 河南东风汽车油品有限公司 | Chimney |
-
2015
- 2015-07-27 CN CN201510448423.4A patent/CN105043138A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726109B (en) * | 2009-11-27 | 2013-01-16 | 广东诺科冷暖设备有限公司 | High-efficiency condensing type heat exchanger |
| CN202836273U (en) * | 2012-08-15 | 2013-03-27 | 河南东风汽车油品有限公司 | Chimney |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889964A (en) * | 2015-12-22 | 2016-08-24 | 江苏卓易环保科技有限公司 | Boiler waste gas waste heat cyclic utilization system |
| CN106838956A (en) * | 2017-01-13 | 2017-06-13 | 安徽未名鼎和环保有限公司 | A kind of refuse burner exhaust gas processing device |
| CN106591601A (en) * | 2017-01-19 | 2017-04-26 | 贵州大学 | Waste heat recovery device of production equipment for preparing titanium sponge through magnesiothermy |
| CN106834746A (en) * | 2017-01-19 | 2017-06-13 | 贵州大学 | A kind of forced convertion magnesiothermy titanium sponge production also original system of recyclable waste heat |
| CN106916967A (en) * | 2017-01-19 | 2017-07-04 | 贵州大学 | A kind of magnesiothermy prepares the waste heat recovery analysis system of titanium sponge production equipment |
| CN106959024A (en) * | 2017-04-19 | 2017-07-18 | 山东海益化工科技有限公司 | A kind of flue gas waste heat recovery apparatus |
| CN109059582A (en) * | 2018-10-10 | 2018-12-21 | 海南汉地阳光石油化工有限公司 | A kind of heat-exchanger rig |
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