CN102200274A - Superconducting waste heat accumulator - Google Patents
Superconducting waste heat accumulator Download PDFInfo
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- CN102200274A CN102200274A CN201010131238XA CN201010131238A CN102200274A CN 102200274 A CN102200274 A CN 102200274A CN 201010131238X A CN201010131238X A CN 201010131238XA CN 201010131238 A CN201010131238 A CN 201010131238A CN 102200274 A CN102200274 A CN 102200274A
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- heat
- boiler
- district
- boiler feedwater
- flue gas
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Abstract
The invention relates to the field of energy conservation and emission reduction equipment for a boiler, in particular to a superconducting waste heat accumulator. The superconducting waste heat accumulator is used for recovering thermal energy of flue gas exhausted from the boiler, and is characterized in that: the interior of the accumulator is separated into a boiler water supply area and a flue gas channel through a clapboard; a cold water inlet and a hot water outlet are formed on two sides of the boiler water supply area; a flue gas inlet and a flue gas outlet are formed on two sides of the flue gas channel; more than one first heat conduction pipe is arranged on the clapboard; one part of the first heat conduction pipe is positioned in the flue gas channel and the other part of the first heat conduction pipe is positioned in the boiler water supply area; the flue gas inlet of the flue gas channel is connected with a boiler smoke outlet through a pipeline, and the flue gas outlet is communicated with outer atmosphere through a dust catcher via the flue gas channel; and the cold water inlet of the boiler water supply area is connected with an outside water source, and the hot water outlet is connected with a boiler water inlet. The superconducting waste heat accumulator is low in thermal energy loss, low in greenhouse gas emission and good in energy-saving effect.
Description
Technical field
The present invention relates to the boiler energy-saving emission-reduction apparatus field, is a kind of superconduction energy strorage by using residual heat device specifically.
Background technology
The air environmental pollution of China is based on coal smoke type, and major pollutants are sulfur dioxide and flue dust.According to statistics, China has 1,000,000,000 tons of coals to be used for direct burning every year approximately, and main users is coal-burning power plant, Industrial Boiler and kiln, coal consumption of living.Wherein Industrial Boiler year about 3.7 hundred million tons of coal consumption, account for more than 1/3 of direct coal-fired total amount of China.China's primary energy is difficult to change in quite long period based on the general layout of coal, and medium and small-scale steam boiler is still occupied an leading position in industrial production.China all adopts discarded tail gas directly to be disposed to the mode of atmosphere at the medium small boiler of usefulness, and the heat resource loss is serious, greenhouse gas emissions are big, energy-saving effect is poor.
Summary of the invention
The present invention is directed to deficiencies such as the heat resource loss that exists in the prior art is serious, greenhouse gas emissions are big, energy-saving effect difference, proposed that a kind of to have heat-energy losses few, greenhouse gas emissions are little, the superconduction energy strorage by using residual heat device of advantages such as good energy-conserving effect.
To achieve these goals, the technical solution used in the present invention is:
Superconduction energy strorage by using residual heat device, be used for boiler and discharge the recovery of flue gas heat energy, it is characterized in that: this accumulator inside is separated into boiler feedwater district and exhaust gases passes by dividing plate, be respectively equipped with cold water inlet and hot water outlet in the both sides in boiler feedwater district, be respectively equipped with smoke inlet and exhanst gas outlet in the both sides of exhaust gases passes; More than one first heat-transfer tube is installed on the described dividing plate, and the part of first heat-transfer tube is arranged in exhaust gases passes, and another part is arranged in the boiler feedwater district;
The smoke inlet of exhaust gases passes by pipeline link to each other with the boiler exhaust gas mouth, exhanst gas outlet is connected with deduster by flue; The cold water inlet in boiler feedwater district links to each other with extraneous water source, hot water outlet links to each other with the water inlet of boiler.
Exhanst gas outlet one side at exhaust gases passes is provided with second heat-transfer tube, and second heat-transfer tube is arranged in the boiler feedwater district, and the one end is connected with exhaust gases passes, the other end converges the flue gas discharge opening that constitutes accumulator, and is connected with deduster by flue.
Described exhanst gas outlet is connected with ambient atmosphere by flue behind deduster by flue.
Be installed on the dividing plate between described more than one first heat-transfer tube with paralleling, have the space between first heat-transfer tube and the accumulator outer layer plate, first heat-transfer tube is arranged in the contact area of the contact area in boiler feedwater district more than or equal to exhaust gases passes.
Described first heat-transfer tube is a seamless steel pipe, and inside is marked with the heat conduction chemical agent.
Described heat conduction chemical agent is the aqueous solution of the sodium dichromate of mass concentration 2%-5%.
Pipeline behind the described boiler feedwater district hot water outlet is provided with water pump.
The top in described boiler feedwater district is provided with air bleeding valve; The bottom in boiler feedwater district is provided with blowoff valve.
Described boiler feedwater district is provided with the water level meter of its interior water level of monitoring.
Be provided with ball float in the boiler feedwater district, described cold water inlet place is provided with valve, and described valve is connected by connecting rod with ball float.
The present invention has following advantage:
1. energy-conservation.Exhaust gases passes of the present invention links to each other with the flue of boiler.Heating duct one end is welded in the interior flue of accumulator, heat conduction be with hot medium material in vacuum state is enclosed in heating duct, hot medium material produces fission when temperature rises to 60 ℃ become gaseous state, and heat is delivered in the water that adds hot-water cavity, water is heated heats.Because the flue residue heat temperature is 240～280 ℃, the leaving water temperature of accumulator promptly reaches 85～90 ℃, and the water after the preheating adds boiler again, reaches the purpose of economizing on coal with this.
2. thermal energy storage.The present invention can be with complete being stored in the accumulator of hot water temperature, and therefore, the heating process by 0～5 ℃ temperature of cold water rises to 85～90 ℃ hot water has been saved in boiler feedwater, has not only shortened the running time of boiler, thereby the coal saving rate of boiler is reached more than 30%.
3. minimizing greenhouse gas emission.Remaining flue gas is disposed to deduster by exhaust gases passes behind the heat hot medium material, because exhaust gases passes is arranged on and adds in the hot-water cavity, so further reduced the flue-gas temperature of exhanst gas outlet, also reduced the consumption of boiler use bunker coal simultaneously, greenhouse gas emissions are reduced in a large number.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: A is the boiler feedwater district, and B is an exhaust gases passes, and C is first heat-transfer tube, and D is second heat-transfer tube, and 1 is cold water inlet, and 2 are and hot water outlet, and 3 is smoke inlet, and 4 is exhanst gas outlet, and 5 is dividing plate, and 6 is ball float, and 7 is water pump, and 8 is air bleeding valve; 9 are the blowdown valve port, and 10 is the water level meter, and 11 is connecting rod.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As shown in Figure 1, a kind of superconduction energy strorage by using residual heat of the present invention device, be used for boiler and discharge the recovery of flue gas heat energy, it is characterized in that: this accumulator inside is separated into boiler feedwater district A and exhaust gases passes B by dividing plate, both sides at boiler feedwater district A are respectively equipped with cold water inlet and hot water outlet, are respectively equipped with smoke inlet and exhanst gas outlet in the both sides of exhaust gases passes B; The more than one first heat-transfer tube C is installed on the described dividing plate, and the part of the first heat-transfer tube C is arranged in exhaust gases passes B, and another part is arranged in boiler feedwater district A; The smoke inlet of exhaust gases passes B by pipeline link to each other with the boiler exhaust gas mouth, exhanst gas outlet, be connected with deduster or behind deduster, be connected with ambient atmosphere by flue; The cold water inlet of boiler feedwater district A links to each other with extraneous water source, hot water outlet links to each other with the water inlet of boiler.
Exhanst gas outlet one side at exhaust gases passes B is provided with the second heat-transfer tube D, and wherein, the second heat-transfer tube D is a seamless steel pipe.The second heat-transfer tube D is arranged in boiler feedwater district A, and the one end is connected with exhaust gases passes B, the other end converges the flue gas discharge opening that constitutes accumulator, and is connected with deduster by flue.
Be installed on the dividing plate between the more than one first heat-transfer tube C with paralleling, there is the space between the first heat-transfer tube C and the accumulator outer layer plate, gapping interval is more than 20mm, the first heat-transfer tube C is arranged in the contact area of the contact area of boiler feedwater district A more than or equal to exhaust gases passes (B), and doing like this can increase heat-conducting area, improves heat transfer efficiency and increase heat energy recovery rate.
The first heat-transfer tube C is a seamless steel pipe, and it is 3% sodium dichromate aqueous solutio (heat conduction chemical agent) that inside is marked with mass concentration.
Pipeline behind the boiler feedwater district A hot water outlet is provided with water pump.
The top of boiler feedwater district A is provided with air bleeding valve; The bottom of boiler feedwater district A is provided with the blowdown valve port.
Described boiler feedwater district A is provided with the water level meter of its interior water level of monitoring.
Be provided with ball float in boiler feedwater district (A), described cold water inlet place is provided with valve, and described valve is connected by connecting rod with ball float.
Operation principle of the present invention is as follows:
The exhaust gases passes of superconduction energy strorage by using residual heat device links to each other with the flue of boiler, after the flue (more than 240～280 ℃) of high-temperature flue gas by boiler enters exhaust gases passes (with steel exhaust gases passes at interval), first heat-transfer tube of exhaust gases passes side is heated, heat is conducted to the seamless steel pipe of boiler feedwater district one end rapidly by the seamless steel pipe of exhaust gases passes side (interior sealing chemical agent conductive fluid is the aqueous solution heat conduction chemical agent of 3% sodium dichromate as: mass concentration);
The heat of boiler feedwater district one end seamless steel pipe directly acts on the boiler feedwater (0～5 ℃) in boiler feedwater district, water in the boiler feedwater district is remained more than 85～90 ℃, hot water in the boiler feedwater district is extracted out with water pump and is supplied with the boiler use, below water level is reduced to water level meter desired location when above (water deficit in the accumulator greater than gross reservoir capacity 10%), ball float is along with water level reduces, drivening rod, open the valve at cold water inlet place, extraneous water source injects the boiler feedwater district with cold water, and remain the district water yield and water temperature (85～90 ℃) and reach the boiler feedwater standard, thereby reach the effect of economizing on coal; Owing to improved boiler feed temperature (85 ℃～90 ℃), the part vaporization is promptly arranged after the injection, conventional boiler feedwater step-down phenomenon can not appear yet;
The residue flue gas (directly contacts with the water in the boiler feedwater district by second heat-transfer tube in the superconduction energy strorage by using residual heat device flue gas chamber, once more with thermal energy conduction to water) be disposed to deduster, the exhanst gas outlet temperature is reduced to below 120 ℃, cause chimney by the flue gas of air-introduced machine after then with dedusting, do like this and can reduce heat-energy losses, reduced greenhouse gas emissions;
PRESSURE-VOLUME RELATION with 1.5～2 times in every (steaming) ton boiler designs reservoir storage of the present invention, and every (steaming) ton boiler can use as 1.5～2 times boiler, saves a large amount of boiler oil coals, and coal saving rate is more than 30%.Remaining flue gas is disposed to deduster by second heat-transfer tube, and the exhanst gas outlet temperature is about 120 ℃, and greenhouse gas emissions reduce in a large number.Bottom, boiler feedwater of the present invention district is provided with the blowdown valve port, and discharging regularly is deposited in the impurity in the water, and the impurity of boiler feedwater is reduced significantly, increases the service life of boiler.
Claims (10)
1. superconduction energy strorage by using residual heat device, be used for boiler and discharge the recovery of flue gas heat energy, it is characterized in that: this accumulator inside is separated into boiler feedwater district (A) and exhaust gases passes (B) by dividing plate, both sides at boiler feedwater district (A) are respectively equipped with cold water inlet and hot water outlet, are respectively equipped with smoke inlet and exhanst gas outlet in the both sides of exhaust gases passes (B); More than one first heat-transfer tube (C) is installed on the described dividing plate, and the part of first heat-transfer tube (C) is arranged in exhaust gases passes (B), and another part is arranged in boiler feedwater district (A);
The smoke inlet of exhaust gases passes (B) by pipeline link to each other with the boiler exhaust gas mouth, exhanst gas outlet is connected with deduster by flue; The cold water inlet in boiler feedwater district (A) links to each other with extraneous water source, hot water outlet links to each other with the water inlet of boiler.
2. by the described superconduction energy strorage by using residual heat of claim 1 device, it is characterized in that: exhanst gas outlet one side at exhaust gases passes (B) is provided with second heat-transfer tube (D), second heat-transfer tube (D) is arranged in boiler feedwater district (A), the one end is connected with exhaust gases passes (B), the other end converges the flue gas discharge opening that constitutes accumulator, and is connected with deduster by flue.
3. by claim 1 or 2 described superconduction energy strorage by using residual heat devices, it is characterized in that: described exhanst gas outlet is connected with ambient atmosphere by flue behind deduster by flue.
4. according to the described superconduction energy strorage by using residual heat of claim 1 device, it is characterized in that: be installed on the dividing plate between described more than one first heat-transfer tube (C) with paralleling, have the space between first heat-transfer tube (C) and the accumulator outer layer plate, first heat-transfer tube (C) is arranged in the contact area of the contact area in boiler feedwater district (A) more than or equal to exhaust gases passes (B).
5. according to claim 1 or 3 described superconduction energy strorage by using residual heat devices, it is characterized in that: described first heat-transfer tube (C) is a seamless steel pipe, and inside is marked with the heat conduction chemical agent.
6. according to the described superconduction energy strorage by using residual heat of claim 5 device, it is characterized in that: described heat conduction chemical agent is the aqueous solution of the sodium dichromate of mass concentration 2%-5%.
7. according to the described superconduction energy strorage by using residual heat of claim 1 device, it is characterized in that: the pipeline behind described boiler feedwater district (A) hot water outlet is provided with water pump.
8. by the described superconduction energy strorage by using residual heat of claim 1 device, it is characterized in that: the top in described boiler feedwater district (A) is provided with air bleeding valve; The bottom in boiler feedwater district (A) is provided with blowoff valve.
9. by the described superconduction energy strorage by using residual heat of claim 1 device, it is characterized in that: described boiler feedwater district (A) is provided with the water level meter of its interior water level of monitoring.
10. by the described superconduction energy strorage by using residual heat of claim 1 device, it is characterized in that: be provided with ball float in boiler feedwater district (A), described cold water inlet place is provided with valve, and described valve is connected by connecting rod with ball float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010131238XA CN102200274A (en) | 2010-03-24 | 2010-03-24 | Superconducting waste heat accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010131238XA CN102200274A (en) | 2010-03-24 | 2010-03-24 | Superconducting waste heat accumulator |
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| Publication Number | Publication Date |
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| CN102200274A true CN102200274A (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010131238XA Pending CN102200274A (en) | 2010-03-24 | 2010-03-24 | Superconducting waste heat accumulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202749A (en) * | 2015-07-10 | 2015-12-30 | 舒城圣桂食品有限公司 | Boiler smoke waste heat recycling water heater |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0690262A1 (en) * | 1994-06-29 | 1996-01-03 | Haldor Topsoe A/S | Waste heat boiler |
| US5607011A (en) * | 1991-01-25 | 1997-03-04 | Abdelmalek; Fawzy T. | Reverse heat exchanging system for boiler flue gas condensing and combustion air preheating |
| CN2286286Y (en) * | 1996-08-30 | 1998-07-15 | 刘福臣 | Waste heat recovery water heater |
| CN2304010Y (en) * | 1997-04-11 | 1999-01-13 | 深圳市环乐环境保护设备工程公司 | Coal-saving device for chemical heat pump |
| CN2418352Y (en) * | 2000-05-16 | 2001-02-07 | 吕东华 | After-heat recovering internal-energy converter |
| CN2431490Y (en) * | 1999-10-26 | 2001-05-23 | 蒋艺 | High-pressure energy-saving water tank |
| EP1219892A1 (en) * | 2000-12-14 | 2002-07-03 | Borsig GmbH | Heat recovery boiler for cooling hot synthesis gas |
| CN2869688Y (en) * | 2005-12-16 | 2007-02-14 | 徐成德 | Efficient environment-protection boiler after-heat recovering apparatus |
| CN201706476U (en) * | 2010-03-24 | 2011-01-12 | 丹东海珠煤业科技发展有限公司 | Superconductive waste heat accumulator |
-
2010
- 2010-03-24 CN CN201010131238XA patent/CN102200274A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5607011A (en) * | 1991-01-25 | 1997-03-04 | Abdelmalek; Fawzy T. | Reverse heat exchanging system for boiler flue gas condensing and combustion air preheating |
| EP0690262A1 (en) * | 1994-06-29 | 1996-01-03 | Haldor Topsoe A/S | Waste heat boiler |
| CN2286286Y (en) * | 1996-08-30 | 1998-07-15 | 刘福臣 | Waste heat recovery water heater |
| CN2304010Y (en) * | 1997-04-11 | 1999-01-13 | 深圳市环乐环境保护设备工程公司 | Coal-saving device for chemical heat pump |
| CN2431490Y (en) * | 1999-10-26 | 2001-05-23 | 蒋艺 | High-pressure energy-saving water tank |
| CN2418352Y (en) * | 2000-05-16 | 2001-02-07 | 吕东华 | After-heat recovering internal-energy converter |
| EP1219892A1 (en) * | 2000-12-14 | 2002-07-03 | Borsig GmbH | Heat recovery boiler for cooling hot synthesis gas |
| CN2869688Y (en) * | 2005-12-16 | 2007-02-14 | 徐成德 | Efficient environment-protection boiler after-heat recovering apparatus |
| CN201706476U (en) * | 2010-03-24 | 2011-01-12 | 丹东海珠煤业科技发展有限公司 | Superconductive waste heat accumulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202749A (en) * | 2015-07-10 | 2015-12-30 | 舒城圣桂食品有限公司 | Boiler smoke waste heat recycling water heater |
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Application publication date: 20110928 |