CN202328785U - Gas-fired multi-stage condensation type normal pressure water heating boiler - Google Patents

Gas-fired multi-stage condensation type normal pressure water heating boiler Download PDF

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Publication number
CN202328785U
CN202328785U CN 201120503069 CN201120503069U CN202328785U CN 202328785 U CN202328785 U CN 202328785U CN 201120503069 CN201120503069 CN 201120503069 CN 201120503069 U CN201120503069 U CN 201120503069U CN 202328785 U CN202328785 U CN 202328785U
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China
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water
boiler
heat exchanger
plate type
type heat
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CN 201120503069
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Chinese (zh)
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苗苏宁
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苗苏宁
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    • Y02B30/102

Abstract

The utility model relates to a gas-fired multi-stage condensation type normal pressure water heating boiler. A clean fuel such as gas or fuel oil and the like is adopted in the gas-fired multi-stage condensation type normal pressure water heating boiler; and a boiler heating chamber has a multi-stage smoke-water plate heat exchange structure. The tubular heat exchanger of the conventional boiler is replaced by using a smoke-water plate heat exchanger, so that the condensation effect of low-temperature water on steam in the smoke is improved. Because the multi-stage smoke-water plate heat exchanger is arranged in the boiler, the heat efficiency of the boiler can be greatly improved. The gas-fired multi-stage condensation type normal pressure water heating boiler is mainly used for producing normal pressure and normal temperature hot water which is used for heating of buildings, living, process hot water and the like.

Description

Combustion gas multi-stage condensing formula normal-pressure hot-water boiler

Technical field

The utility model relates to a kind of combustion gas multi-stage condensing formula normal-pressure hot-water boiler.The fuel of this combustion gas multi-stage condensing formula normal-pressure hot-water boiler adopts clean fuels such as combustion gas or fuel oil, and the boiler heating clamber adopts multistage cigarette-water plate-type heat exchange structure.Replace the pipe heat exchanger of original boiler with cigarette-water plate type heat exchanger, in order to improve the condensation of water at low temperature to water vapour in the flue gas.Owing in boiler, be provided with multistage cigarette-water plate type heat exchanger, can improve the thermal efficiency of boiler greatly.Combustion gas multi-stage condensing formula normal-pressure hot-water boiler mainly produces normal pressure, normal temperature hot water, is used for heating, life and the technology hot water etc. of building.

Background technology

At present, traditional gas normal-pressure hot-water boiler all is made up of burner, combustion chamber, heating clamber three major parts.Burner mainly is with ignited fuel and enough air is provided, and the combustion chamber is that fuel after lighting and air are converted into heat in this burning, and heating clamber is the heat of high temperature that produces in the combustion chambers burn process, passes to water at low temperature the temperature of water is improved.The efficient of boiler just depends primarily on the structure and the heating surface area of heating clamber; The heating clamber of existing boiler adopts the tubular type heating arrangement mostly; Because the heat transfer coefficient of tubular type heating arrangement is low, the exhaust gas temperature height does not have water vapour condensation in the flue gas, so boiler efficiency is very low.This combustion gas condensing normal-pressure hot-water boiler has changed the heat structure that receives of heating clamber; Change original tubular type heating arrangement into plate-type heat exchange structure; The heat transfer coefficient of plate-type heat-exchange is very high, can well carry out condensation to water vapour in the flue gas, reclaims the latent heat of water vapour in flue gas in a large number.One cubic metre of imflammable gas of every burning approximately will produce 1~2 kg of water in boiler, and at high temperature water is heated; The latent heat that per kilogram water approximately will absorb 560 kilocalories makes water be boiled into water vapour; If this partly not effectively recovery of heat is discharged from boiler, the efficient of boiler will be very low.After combustion gas condensing normal-pressure hot-water boiler has changed heating arrangement; The exhaust gas temperature of boiler is reduced greatly, make the temperature of plate type heat exchanger be lower than the dew-point temperature in the flue gas, so not only improved the thermal efficiency of boiler; And, also little a lot of of the volume and weight of boiler.

Summary of the invention

The purpose of the utility model provides a kind of, adopts multistage cigarette-water plate type heat exchanger principle, the combustion gas multi-stage condensing formula normal-pressure hot-water boiler of design.

The purpose of the utility model is achieved in that combustion gas multi-stage condensing formula normal-pressure hot-water boiler mainly is made up of parts such as burner, combustion chamber, first order cigarette-water plate type heat exchanger, second level cigarette-water plate type heat exchanger, third level cigarette-water plate type heat exchanger, boiler exhaust gas case, boiler exhaust gas mouth, boiler feed water mouth, boiler delivery port, air drain, boiler blow-down water outlet and boiler foundations.Burner is with combustion gas and air mixing ignition, and combustion gas after lighting and air amalgam are done abundant burning in the combustion chamber, produces great amount of heat, forms high-temperature flue gas.High-temperature flue gas gets into first order cigarette-water plate type heat exchanger, second level cigarette-water plate type heat exchanger, third level cigarette-water plate type heat exchanger and water heat exchange successively by the combustion chamber, and with the heat transferred water in the flue gas, flue-gas temperature is reduced by height.Flue gas after the reduction temperature gets into the boiler exhaust gas case, is discharged out of the furnace by the boiler exhaust gas mouth.Water at low temperature is by third level cigarette-water plate type heat exchanger water inlet; Get into third level cigarette-water plate type heat exchanger, second level cigarette-water plate type heat exchanger, first order cigarette-water plate type heat exchanger and high-temperature flue gas successively and carry out heat exchange; The temperature of water at low temperature is raise by low; High-temperature-hot-water gets into the furnace water jacket layer again, sees boiler off by the boiler delivery port then, supplies the user to use.

Owing to adopted such scheme, just can adopt multistage cigarette-water plate type heat exchanger principle, be designed to combustion gas multi-stage condensing formula normal-pressure hot-water boiler.

Description of drawings

Below in conjunction with accompanying drawing and embodiment utility model is further specified.

Accompanying drawing is the principles of construction figure of the utility model.

Figure 1. Burner? 2 burners imports? 3. Combustion chamber? 4. Combustor flue gas outlet? 5. Tier smoke - water heat exchanger flue gas imports? 6. Tier smoke - water Plate heat exchanger? 7. secondary smoke - water heat exchanger flue gas imports? 8. secondary smoke - water plate heat exchanger? 9 second stage smoke - water heat exchanger flue gas imports? 10 The third stage smoke - water plate heat exchanger? 11. boiler flue gas tank? 12. boiler exhaust port 13. boiler condensate outlet? 14. boiler inlet? 15. third stage smoke - water plate changer heater inlet 16. third stage smoke - water heat exchanger outlet? 17 second three smoke - water heat exchanger water channel connecting pipe? 18 second-level smoke - water plate heat exchanger inlet outlet? 19. secondary smoke - water heat exchanger outlet? 20 The first two smoke - water heat exchanger water channel connecting tube? 21 first-class tobacco - water heat exchanger inlet? 22 The first stage smoke - water heat exchanger outlet? 23 first-class tobacco - water heat exchanger outlet tee? 24. furnace inlet water jacket layer? 25. air vent? 26. furnace water jacket layer? 27. boiler outlet? 28. furnace water jacket layer outfall? 29. furnace water jacket layer outfall? 30. combustor outfall? 31. combustor outfall? 32. furnace insulation? 33. mounting bracket? 34. boiler base

The specific embodiment

In the drawings, burner 1 is lighted after with air and combustion gas mixing, and air after lighting and combustion gas mixing body get into combustion chamber 3 and do abundant burning through combustor inlet 2, produce great amount of heat, form high-temperature flue gas.High-temperature flue gas is by gas fume of combustion chamber outlet 4; Through first order cigarette-water plate type heat exchanger gas approach 5, get into first order cigarette-water plate type heat exchanger 6, high-temperature flue gas and water are done heat exchange for the first time in first order cigarette-water plate type heat exchanger; The temperature of high-temperature flue gas descends, and the temperature of water rises.The flue gas that reduces temperature is by first order cigarette-water plate type heat exchanger 6, and the cigarette through the second level-water plate type heat exchanger gas approach 7 gets in second level cigarette-water plate type heat exchanger 8, does heat exchange for the second time, and the temperature of high-temperature flue gas continues to descend, and the temperature of water is raised.The flue gas that reduces temperature is through third level cigarette-water plate type heat exchanger gas approach 9; Get into third level cigarette-water plate type heat exchanger 10; Flue gas and water are done last heat exchange in third level cigarette-water plate type heat exchanger, and the heat in the flue gas is absorbed the heat exchange termination by water at this moment, and flue gas becomes low-temperature flue gas.Low-temperature flue gas gets into smoking box 11 by third level cigarette-water plate type heat exchanger 10, is discharged out of the furnace by boiler exhaust gas mouth 12.The water that is condensed in the boiler smoke is discharged out of the furnace by boiler condensation water out 13.The water of stove external demand heating is by boiler feed water mouth 14; Through third level cigarette-water plate type heat exchanger water inlet 16, get into third level cigarette-water plate type heat exchanger 10, water is done heat exchange for the first time with high-temperature flue gas in third level cigarette-water plate type heat exchanger; The temperature of water improves, and flue-gas temperature descends.Water is enhanced temperature after the two or three grade of cigarette-water plate type heat exchanger aquaporin tube connector 17 by second level cigarette-water plate type heat exchanger water inlet 18, gets into second level cigarette-water plate type heat exchanger 8, and the temperature of water is in this further improve.The water that further has been enhanced temperature is through first secondary cigarette-water plate type heat exchanger aquaporin tube connector 20; By first order cigarette-water plate type heat exchanger water inlet 21; Get into first order cigarette-water plate type heat exchanger 6, carry out heat exchange with flue gas once more, the temperature of water continues to be enhanced.The water of having put forward temperature by first order cigarette-water plate type heat exchanger water outlet three-way pipe 23, from furnace water jacket layer water inlet 24, gets into furnace water jacket layer 26 through first order cigarette-water plate type heat exchanger delivery port 22.For the assurance unit is worked under normal pressure, the air drain 25 of first order cigarette-water plate type heat exchanger water outlet three-way pipe 23 tops keeps normal pressure with atmosphere.Water is by the top of furnace water jacket layer 26, and the boiler delivery port 27 through furnace water jacket layer 26 bottom is discharged and supplied user's use.Water during body of heater maintenance for ease in the emptying furnace water jacket layer; Be provided with furnace water jacket layer sewage draining exit 28 in the bottom of furnace water jacket layer 26; With furnace water jacket layer blow-off pipe 29, the water in the water jacket layer, can discharge out of the furnace along furnace water jacket layer sewage draining exit and furnace water jacket layer blow-off pipe.The maintenance of combustion chamber equally for ease, the bottom of combustion chamber 3 are provided with combustion chamber sewage draining exit 30 and combustion chamber blow-off pipe 31, when maintenance if any sewage, sewage can be along the combustion chamber sewage draining exit and combustion chamber blow-off pipe discharge out of the furnace.In order to reduce the heat loss of body of heater, be provided with insulating layer of furnace body 32 in the outside of furnace water jacket layer 26.Cigarette-water plate type heat exchanger is installed and is connected to form an integral body with mounting bracket 33 and boiler foundation 34.

Claims (16)

1. a combustion gas multi-stage condensing formula normal-pressure hot-water boiler mainly is made up of parts such as burner, combustion chamber, first order cigarette-water plate type heat exchanger, second level cigarette-water plate type heat exchanger, third level cigarette-water plate type heat exchanger, boiler exhaust gas case, boiler exhaust gas mouth, boiler feed water mouth, boiler delivery port, air drain, boiler blow-down water outlet and boiler foundations; It is characterized in that: burner is lighted after with air and combustion gas mixing, and air after lighting and combustion gas mixing body get into the combustion chamber through combustor inlet and do abundant burning.
2. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1, it is characterized in that: high-temperature flue gas is exported by gas fume of combustion chamber, through first order cigarette-water plate type heat exchanger gas approach, gets into first order cigarette-water plate type heat exchanger.
3. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1 is characterized in that: the flue gas that reduces temperature is by first order cigarette-water plate type heat exchanger, and the cigarette through the second level-water plate type heat exchanger gas approach gets in second level cigarette-water plate type heat exchanger.
4. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1; It is characterized in that: the flue gas that reduces temperature is through third level cigarette-water plate type heat exchanger gas approach; Get into third level cigarette-water plate type heat exchanger, flue gas and water are done last heat exchange in third level cigarette-water plate type heat exchanger.
5. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1 is characterized in that: low-temperature flue gas gets into smoking box by third level cigarette-water plate type heat exchanger, is discharged out of the furnace by the boiler exhaust gas mouth.
6. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1, it is characterized in that: the water that is condensed in the boiler smoke is discharged out of the furnace by the boiler condensation water out.
7. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1 is characterized in that: the water of stove external demand heating through third level cigarette-water plate type heat exchanger water inlet, gets into third level cigarette-water plate type heat exchanger by the boiler feed water mouth.
8. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1; It is characterized in that: water is enhanced temperature after the two or three grade of cigarette-water plate type heat exchanger aquaporin tube connector; By second level cigarette-water plate type heat exchanger water inlet, get into second level cigarette-water plate type heat exchanger.
9. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1; It is characterized in that: the water that further has been enhanced temperature is through first secondary cigarette-water plate type heat exchanger aquaporin tube connector; By first order cigarette-water plate type heat exchanger water inlet, get into first order cigarette-water plate type heat exchanger.
10. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1; It is characterized in that: the water that has improved temperature is through first order cigarette-water plate type heat exchanger delivery port; By first order cigarette-water plate type heat exchanger water outlet three-way pipe,, get into the furnace water jacket layer from furnace water jacket layer water inlet.
11. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1 is characterized in that: the air drain of first order cigarette-water plate type heat exchanger water outlet three-way pipe top keeps normal pressure with atmosphere.
12. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1 is characterized in that: water is discharged the confession user through the boiler delivery port of furnace water jacket layer bottom and is used by the top of furnace water jacket layer.
13. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1 is characterized in that: be provided with furnace water jacket layer sewage draining exit and furnace water jacket layer blow-off pipe in the bottom of furnace water jacket layer.
14. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1, it is characterized in that: the bottom of combustion chamber is provided with combustion chamber sewage draining exit and combustion chamber blow-off pipe.
15. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1, it is characterized in that: the outside at the furnace water jacket layer is provided with insulating layer of furnace body.
16. combustion gas multi-stage condensing formula normal-pressure hot-water boiler according to claim 1 is characterized in that: cigarette-water plate type heat exchanger is installed with mounting bracket and boiler foundation and is connected to form an integral body.
CN 201120503069 2011-12-07 2011-12-07 Gas-fired multi-stage condensation type normal pressure water heating boiler CN202328785U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120503069 CN202328785U (en) 2011-12-07 2011-12-07 Gas-fired multi-stage condensation type normal pressure water heating boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120503069 CN202328785U (en) 2011-12-07 2011-12-07 Gas-fired multi-stage condensation type normal pressure water heating boiler

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CN202328785U true CN202328785U (en) 2012-07-11

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CN 201120503069 CN202328785U (en) 2011-12-07 2011-12-07 Gas-fired multi-stage condensation type normal pressure water heating boiler

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884101A (en) * 2012-12-24 2014-06-25 苗苏宁 Plate-type gas combustion condensing water boiler
CN104142020A (en) * 2014-06-20 2014-11-12 南通鸿景天机械设备科技有限公司 Small energy-saving boiler capable of realizing multistage heating and automatic temperature control
CN104930698A (en) * 2015-06-16 2015-09-23 泰州市远望换热设备有限公司 Plate type gas boiler
CN105674555A (en) * 2016-03-23 2016-06-15 沧州欧科联合热能技术服务有限公司 Horizontal single-return-stroke gas-fired hot water boiler

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884101A (en) * 2012-12-24 2014-06-25 苗苏宁 Plate-type gas combustion condensing water boiler
CN104142020A (en) * 2014-06-20 2014-11-12 南通鸿景天机械设备科技有限公司 Small energy-saving boiler capable of realizing multistage heating and automatic temperature control
CN104142020B (en) * 2014-06-20 2016-11-16 李婧 A kind of compact multi-level heats temperature automatically controlled power economized boiler
CN104930698A (en) * 2015-06-16 2015-09-23 泰州市远望换热设备有限公司 Plate type gas boiler
CN105674555A (en) * 2016-03-23 2016-06-15 沧州欧科联合热能技术服务有限公司 Horizontal single-return-stroke gas-fired hot water boiler

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C14 Grant of patent or utility model
GR01 Patent grant
DD01 Delivery of document by public notice

Addressee: Miao Suning

Document name: Notification that Application Deemed not to be Proposed

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20170126

Address after: 210038 Jiangsu economic and Technological Development Zone, Longgang science and Technology Park, building B2, building, floor, building, 11

Patentee after: ARNOER ENERGY TECHNOLOGY CO., LTD.

Address before: 210016 Xuanwu District, Jiangsu, Jiefang Road No. 3, Ma Biao, building 26, floor 1, west of the three

Patentee before: Miao Suning