CN205535744U - Gas boiler air and moisturizing circulation system of preheating - Google Patents

Gas boiler air and moisturizing circulation system of preheating Download PDF

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Publication number
CN205535744U
CN205535744U CN201620098098.3U CN201620098098U CN205535744U CN 205535744 U CN205535744 U CN 205535744U CN 201620098098 U CN201620098098 U CN 201620098098U CN 205535744 U CN205535744 U CN 205535744U
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CN
China
Prior art keywords
preheating
air
water tank
heating
boiler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620098098.3U
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Chinese (zh)
Inventor
齐晓冰
郭素琴
梁国利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENAN PROVINCE BOILER PRESSURE VESSEL SAFETY CHECKING RESEARCH INSTITUTE
Original Assignee
HENAN PROVINCE BOILER PRESSURE VESSEL SAFETY CHECKING RESEARCH INSTITUTE
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Priority to CN201620098098.3U priority Critical patent/CN205535744U/en
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Publication of CN205535744U publication Critical patent/CN205535744U/en
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Abstract

The utility model discloses a gas boiler air and moisturizing circulation system of preheating, the furnace body bottom sets up furnace, and the furnace body middle part sets up heating calancria and water cavity, and furnace body upper portion sets up the chimney, be provided with preheating water tank on furnace body upper portion, preheating water tank is provided with inlet tube and circulating pipe, the moisturizing mouth intercommunication of this circulating pipe and water cavity, the heating calancria is deepening implemented and is gathered behind preheating water tank in the chimney, be located preheating water tank's part or whole heating calancria, the intrinsic preheating of air chamber of seal cover, air inlet duct communicates in the furnace bottom behind the preheating of air chamber. The utility model provides a preheating water tank can assemble in boiler furnace top, advances the outlet flue that the combustion chamber is connected to the mouth, at the operation in -process, carries out the heat exchange with cold water in the sump, make full use of heat energy, the water cavity internal energy of preheating the back reentrant combustion chamber of water is heated rapidly, has promoted efficiency.

Description

Gas fired-boiler air and moisturizing circulation pre-heating system
Technical field
The utility model relates to boiler circulation preheating technology field, is specifically related to a kind of gas fired-boiler air and moisturizing circulation pre-heating system.
Background technology
Boiler is that the heat energy utilizing fuel or other energy is heated as the equipment of hot water or steam water.In boiler produce hot water or steam can directly for industrial production and people's lives offer required for heat energy, it is possible to be converted to mechanical energy by Steam Power Equipment, or convert mechanical energy into electric energy by generator again.The boiler providing hot water is referred to as hot-water boiler, is mainly used in life, also has a small amount of application in industrial production.
The boiler main of prior art to be made up of combustion chamber and water cavity, water cavity is provided with water inlet and delivery port, and cold water enters boiler water cavity by water inlet, by the heat energy of fuel in combustion chamber burning generation by the hydro-thermal in water cavity, hot water, after delivery port is discharged, is applied in life and the production of people.The defect of this traditional boiler is that power consumption is high, it is heavy to pollute, efficiency is low.
It addition, air preheater is the equipment utilizing fume afterheat to heat combustion air.Owing to the water content of fuel of biomass boiler is relatively big, thus air preheat to the fuel of boiler be sugar refinery boiler of bagasse and other biomass fired boiler particularly important.Using boiler air preheater to input hot-air in boiler, can improve fire box temperature, improve burning condition, make the incomplete combustion loss of fuel decline, boiler output is improved, thus improves boiler thermal output further.Existing a kind of boiler air preheater, the technical scheme of this boiler air preheater is: include the heat exchanger shell being contained on support, described heat exchanger shell is provided with smoke air inlet and flue gas gas outlet, being provided with heat exchanger core in described heat exchanger shell, described heat exchanger core is connected with described heat exchanger shell by the air inlet and air outlet being connected to two ends respectively;Described heat exchanger core has the many heat exchanger tubes being inserted between two pieces of installing plates, and described heat exchanger tube is light pipe.In use there is following deficiency in this boiler air preheater: this boiler air preheater is that at heat exchange Bottomhole pressure, flue gas flows outside heat exchanger tube and carries out heat exchange by air, heat exchanger tube is light pipe, air flowing in heat exchanger tube is laminar flow, intraductal heat exchange coefficient is relatively low, the heat transfer effect of heat exchanger is bad, and the overall heat transfer effect causing boiler air preheater is the best.
Utility model content
There is, for current gas fired-boiler, the problem that waste heat waste is serious in the utility model, it is provided that a kind of gas fired-boiler air and moisturizing circulation pre-heating system.
Adopting the following technical scheme that a kind of gas fired-boiler air and moisturizing circulation pre-heating system for achieving the above object, including body of heater, bottom of furnace body arranges burner hearth, arranges heating calancria and water cavity in the middle part of body of heater, and upper of furnace body arranges chimney;Upper of furnace body is provided with preheating water tank, and preheating water tank is provided with water inlet pipe and circulating water pipe, and this circulating water pipe connects with the water supplement port of water cavity;Described heating calancria is deeply implemented and is summarized in chimney after preheating water tank;Being positioned on the part or all of heating calancria of preheating water tank, the intrinsic air-pre-heating cavity of sealing shroud, air inlet duct is communicated in burner hearth bottom after air-pre-heating cavity.
Described air-pre-heating cavity is sequentially connected in series or side by side.
Blower fan it is provided with on the pipeline carry air.
It is provided with thermal insulation layer between described preheating water tank and body of heater.Outside described preheating water tank and body of heater or inner side is provided with thermal insulation layer.
The outer wall of described heating calancria is provided with axially distributed protrusion conducting strip.
Beneficial effect: the preheating water tank in the utility model may be mounted at above boiler furnace, smoke inlet connects the outlet flue of combustion chamber, after the high-temperature flue gas discharged from combustion chamber enters flue, in running, carry out heat exchange with the cold water in sump, not only take full advantage of heat energy, also reduce the flue gas pollution to environment, it addition, water can be heated rapidly in entering back into the water cavity of combustion chamber after Yu Re, improve efficiency.
Use air heat-exchange pipe to improve the coefficient of heat transfer inside and outside pipe, form outer strong interior strong double augmentation of heat transfer modes;Entering to mix in air flue before the air in preheating water tank carries out with flue gas entering upper heat exchange bobbin carriage after heat exchange and be allowed to be heated evenly, good effect of heat exchange, Composite Walls improves several times.Owing to have employed the conducting strip that outer surface protrudes, skimming over the fin of heat exchanger tube when flue gas enters heat exchanger shell, the coefficient of heat transfer outside heat exchanger tube is more than the coefficient of heat transfer in heat exchanger tube, and tube wall temperature is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cross-sectional view of Fig. 1.
In figure, label 1 is body of heater, and 2 is preheating water tank, and 3 is thermal insulation layer, and 4 is burner hearth, and 5 is natural gas tube, 6 is heating calancria, and 7 is chimney, and 8 is water cavity, and 9 is water inlet pipe, and 10 is circulating water pipe, 11 is steam comb, and 12 is air inlet duct, and 13 is air outlet conduits, and 14 is air-pre-heating cavity, and 15 is blower fan.
Detailed description of the invention
Embodiment 1: seeing the gas fired-boiler air described in Fig. 1 and moisturizing circulation pre-heating system, arrange burner hearth, arrange heating calancria 6 and water cavity in the middle part of body of heater 1 bottom body of heater 1, body of heater 1 top arranges chimney 7.
It addition, be provided with preheating water tank 2 on body of heater 1 top, preheating water tank 2 is provided with water inlet pipe and circulating water pipe, and this circulating water pipe connects with the water supplement port of water cavity;Described heating calancria 6 is deeply implemented and is summarized in chimney 7 after preheating water tank 2.
Seeing Fig. 2, be positioned on the part or all of heating calancria 6 of preheating water tank 2, the intrinsic air-pre-heating cavity of sealing shroud 14, air inlet duct is communicated in burner hearth bottom after air-pre-heating cavity 14.Blower fan it is provided with on the pipeline carry air.
Air-pre-heating cavity 14 is sequentially connected in series or side by side.
Embodiment 2: on the basis of embodiment 1, is provided with thermal insulation layer 3 between preheating water tank 2 and body of heater 1.Outside preheating water tank 2 and body of heater 1 or inner side is provided with thermal insulation layer.
Embodiment 3: on the basis of embodiment 1, is provided with axially distributed protrusion conducting strip by the outer wall of described heating calancria 6.

Claims (6)

1. gas fired-boiler air and a moisturizing circulation pre-heating system, including body of heater, bottom of furnace body arranges burner hearth, arranges heating calancria and water cavity in the middle part of body of heater, and upper of furnace body arranges chimney;It is characterized in that: upper of furnace body is provided with preheating water tank, preheating water tank is provided with water inlet pipe and circulating water pipe, and this circulating water pipe connects with the water supplement port of water cavity;Described heating calancria is deeply implemented and is summarized in chimney after preheating water tank;Being positioned on the part or all of heating calancria of preheating water tank, the intrinsic air-pre-heating cavity of sealing shroud, air inlet duct is communicated in burner hearth bottom after air-pre-heating cavity.
Gas fired-boiler air the most according to claim 1 and moisturizing circulation pre-heating system, is characterized in that: described air-pre-heating cavity is sequentially connected in series or side by side.
Gas fired-boiler air the most according to claim 1 and moisturizing circulation pre-heating system, is characterized in that: be provided with blower fan on the pipeline of air for carrying.
Gas fired-boiler air the most according to claim 1 and moisturizing circulation pre-heating system, is characterized in that: be provided with thermal insulation layer between described preheating water tank and body of heater.
Gas fired-boiler air the most according to claim 1 and moisturizing circulation pre-heating system, is characterized in that: outside described preheating water tank and body of heater or inner side is provided with thermal insulation layer.
Gas fired-boiler air the most according to claim 1 and moisturizing circulation pre-heating system, is characterized in that: the outer wall of described heating calancria is provided with axially distributed protrusion conducting strip.
CN201620098098.3U 2016-02-01 2016-02-01 Gas boiler air and moisturizing circulation system of preheating Expired - Fee Related CN205535744U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620098098.3U CN205535744U (en) 2016-02-01 2016-02-01 Gas boiler air and moisturizing circulation system of preheating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620098098.3U CN205535744U (en) 2016-02-01 2016-02-01 Gas boiler air and moisturizing circulation system of preheating

Publications (1)

Publication Number Publication Date
CN205535744U true CN205535744U (en) 2016-08-31

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107384475A (en) * 2017-08-10 2017-11-24 邵阳信多利科技发展有限公司 A kind of Biohazard Waste gasification treatment device
CN107477856A (en) * 2017-08-10 2017-12-15 邵阳信多利科技发展有限公司 A kind of gasification of biomass hot-water boiler
CN110410835A (en) * 2019-07-31 2019-11-05 安徽冠东科技有限公司 A kind of spherical water tank heat-exchanger rig
CN111023069A (en) * 2019-12-11 2020-04-17 佛山市高明区高级技工学校 Water heating stove
CN113513840A (en) * 2021-07-06 2021-10-19 贵州省永钧种植有限公司 Energy-saving boiler

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107384475A (en) * 2017-08-10 2017-11-24 邵阳信多利科技发展有限公司 A kind of Biohazard Waste gasification treatment device
CN107477856A (en) * 2017-08-10 2017-12-15 邵阳信多利科技发展有限公司 A kind of gasification of biomass hot-water boiler
CN110410835A (en) * 2019-07-31 2019-11-05 安徽冠东科技有限公司 A kind of spherical water tank heat-exchanger rig
CN110410835B (en) * 2019-07-31 2020-10-16 宁国冠东工业技术有限公司 Spherical water tank heat exchange device
CN111023069A (en) * 2019-12-11 2020-04-17 佛山市高明区高级技工学校 Water heating stove
CN113513840A (en) * 2021-07-06 2021-10-19 贵州省永钧种植有限公司 Energy-saving boiler

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160831

Termination date: 20180201

CF01 Termination of patent right due to non-payment of annual fee