CN202119091U - High-efficiency energy-saving air heating furnace - Google Patents
High-efficiency energy-saving air heating furnace Download PDFInfo
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- CN202119091U CN202119091U CN2011201723457U CN201120172345U CN202119091U CN 202119091 U CN202119091 U CN 202119091U CN 2011201723457 U CN2011201723457 U CN 2011201723457U CN 201120172345 U CN201120172345 U CN 201120172345U CN 202119091 U CN202119091 U CN 202119091U
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Abstract
The utility model relates to a high-efficiency energy-saving air heating furnace, which comprises a furnace body. A fire grate is arranged in the furnace body, and the furnace body is connected with a hot-gas output tube. One end of the hot-gas output tube is connected with the top of the furnace body, and a combustion chamber which extends and rises along a furnace wall is arranged in the furnace body under the hot-gas output tube. The other end of the hot-gas output tube is connected with a hot-gas inlet of a heat exchange mechanism before heat exchange, and a first hot-gas outlet of the heat exchange mechanism after heat exchange is connected with heat using equipment through a pipeline. An atmosphere inlet of the heat exchange mechanism before heat exchange is communicated with the first hot-gas outlet. The high-efficiency energy-saving air heating furnace overcomes the defects in the prior art that the common steam boiler and the conduction oil boiler have serious heat energy loss and high operating cost, the conduction oil mesosome being transferred at high temperature is easy to burn, steam is easy to explode at high pressure, and the serious potential safety hazard exists. Due to the design, the high-efficiency energy-saving air heating furnace has the advantages of compact structure, complete burning, high heat production efficiency and high exchange efficiency and safe and reliable operation.
Description
Technical field
The utility model relates to a kind of energy efficient hot air furnace.
Background technology
In the industrial and agricultural production process, need a large amount of heats to various production materials dry, be shaped, processing such as curing, its equipment only depends on steam boiler or heat conducting oil boiler.Above-mentioned two kinds of boilers lean on stove to produce heat; Mediator (water or oil) in the heat transferred pot; Mediator is carried through steam pressure or is transported in drying baker or the drying assembly line through circulating pump; Through the heat exchanger exchange, heat with the distinguished and admirable oven dry part of taking to, is reached material oven dry purpose again.
The heat production working procedure of heat conducting oil boiler; Be in stove, to provide a large amount of fuel to burn earlier; Produce the conduction oil in a large amount of heat transferred exchange pipes, conduction oil heats up, and the back is carried by circulating pump and after the heat exchanger heat exchange, the heat that exchanges out supplies to use with hot equipment.Returning after conduction oil need heat up heats in the boiler recycles.When conduction oil is made intermediate; Its temperature must exceed with hot equipment such as baking oven or more than 30% of drying room temperature; The boiler smoke exhaust temperature exceeds more than 20% than conduction oil temperature, and than exceeding about 50% with internal temperature of heat apparatus, its heat comprehensive loss is about 45%.Simultaneously, conduction oil recycles under hot conditions for a long time, must produce carbonizing matter; Heat transfer property is faded, and getting over the long pass thermal efficiency period can be lower, uses and must change in three to five years; And conduction oil relies on the oil pump high temperature circulation, and the use for a long time of oil pump, oil pipe and valve member can cause wearing and tearing; Need to change various parts, also want technical staff's long-term follow to safeguard that corresponding production cost also can improve.
Steam boiler heat production working procedure; Be earlier cold water to be injected in the pot, be supplied to pot or exchange pipe by the stove heat production, again with heat transferred water; Water becomes steam after heating up; Produced pressure, compressed into the exchange pipe inside with hot equipment such as baking oven or drying room by the pressure of steam, interchanger is passed to baking oven or drying room dry matter by distinguished and admirable operation after having received heat.High steam through the interchanger exchange heat after pressure can reduce, overbottom pressure steam must be drained, high steam could inject continuously, could keep the intensification of baking oven or drying room, just can reach the purpose that material is dried.The discharging of overbottom pressure steam, thermal loss can reach about 45%, and the heat transferred water in the boiler becomes steam; The boiler smoke exhaust temperature surpasses the temperature about 25% of steam, equals a heat-shift loss 25%, secondary heat-shift overbottom pressure discharge of steam thermal loss about 45%; Front and back secondary heat-shift amounts to about 70%, also has the boiler cinder, ashpit losses and other loss 5%; Practical heat energy to the baking oven drying room can only reach about 25%, and the thermal efficiency is extremely low.The transmission of steam boiler heat is a water quality, contains a large amount of calcium and other impurity in the middle of the water quality, and water quality can become steam and can flow under high-temperature condition, and calcium can separate with water with other impurity.Calcium and other impurity thing can tie in pot with the exchange pipe in, be called incrustation scale, during in the longer pot with the exchange pipe in incrustation scale tie thick more, heat transfer performance can descend equally gradually.So the steam boiler operation adds the incrustation scale in the alkaline water softener cleaning pot simultaneously to the necessary prolonged application purified treatment of water in water, in time discharge hot sewage, water treatment cost and hot sewage discharge thermal loss can increase operating cost like this.The steam boiler operation must be disposed water pump, various valves, and various members; The water quality foreign material are many, and water quality itself is two hydrogen, one oxygen, all oxidation reaction can be arranged; Boiler and various member all are that metallics causes, and water quality has oxidation to metallics, and adding mechanical long-time running wearing and tearing also needs skilled worker personnel maintenance maintenance; Often change each member, also can increase operating cost.
Be not difficult to find that the heat-energy losses of steam boiler and heat conducting oil boiler is serious, operating cost is very high, and the conduction oil mediator transmits under hot conditions easily and burn, and steam explodes under high-pressure situations easily, all exists serious potential safety hazard.
The utility model content
The heat-energy losses of common steam boiler and heat conducting oil boiler is serious in the prior art, operating cost is high in order to overcome; And the conduction oil mediator transmits burning easily under hot conditions; Steam is blast easily under high-pressure situations; Exist the problem of serious potential safety hazard, the utility model provides a kind of energy efficient hot air furnace, and the compact conformation of this energy efficient hot air furnace, burning are thoroughly, heat production efficient and heat exchanger effectiveness be high, safe and reliable to operation.
The utility model solves the technical scheme that its technical problem adopted: comprise body of heater; Fire grate is set in the body of heater; Connect the hot gas efferent duct on the body of heater, hot gas efferent duct one end connects the top that is arranged on body of heater, is provided with the most combustion chamber that extension is increased along the furnace wall in the body of heater of hot gas efferent duct below.
The hot gas efferent duct other end connects the hot air intake before the heat exchange mechanism heat exchange, and first heat outlet after the heat exchange mechanism heat exchange connects the hot equipment of using through pipeline, and the atmosphere import before the heat exchange mechanism heat exchange is communicated with first heat outlet.
Heat exchange mechanism is made up of first counterflow heat exchanger and second counterflow heat exchanger serial connection; The lower end of first counterflow heat exchanger and second counterflow heat exchanger is provided with the deashing chamber of connection; Hot gas in the hot gas efferent duct is sent into the hot air intake of first counterflow heat exchanger downwards; Upwards get into second counterflow heat exchanger through deashing chamber by the lower end, the atmosphere in the atmosphere import is sent into second counterflow heat exchanger downwards, upwards gets into first counterflow heat exchanger by the lower end and is communicated with first heat outlet.
The waste heat outlet of second counterflow heat exchanger is connected in series the 3rd counterflow heat exchanger from the top, and the bottom of the 3rd counterflow heat exchanger is the cold wind import, and it is inner that second heat outlet on the 3rd counterflow heat exchanger top is communicated with body of heater.
The upper end of first counterflow heat exchanger, second counterflow heat exchanger and the 3rd counterflow heat exchanger is provided with movable shoot door.
The utility model can produce in the burning cremate process of fuel in body of heater and spray the fuel that flies, seethes with excitement through above-mentioned concrete design, and fuel can fire the indoor burning of going up and down repeatedly to the greatest extent under situation about not burnouting; Till after-flame, hot gas is the output of hot gas efferent duct from the top, and heavier dust accumulates on fire grate; Reduce flue dust and crock and get into heat exchanger; Btu utilization can reach more than 95% after three counterflow exchange, greatly improves the thermal efficiency, and the lifting speed of the utility model is very fast; Only need a heat exchange can directly supply the production demand; Its energy exchange medium is the exchange of gas gas, does not have inflammable risk of high temperature oil and steam pressure explosion danger, and performance is as safe as a house.
Description of drawings
The detailed content of the utility model is described below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the structural representation of the utility model.
The specific embodiment
As shown in the figure; The utility model comprises body of heater 1, and fire grate 2 is set in the body of heater 1, connects hot gas efferent duct 3 on the body of heater 1; Hot gas efferent duct 3 one ends connect the top that is arranged on body of heater 1, are provided with the most combustion chamber 5 that 4 extensions are increased along the furnace wall in the body of heater 1 of hot gas efferent duct 3 belows.Can produce in the burning cremate process of fuel in body of heater and spray the fuel that flies, seethes with excitement; Fuel is in the burning of can in firing chamber 5 to the greatest extent, going up and down repeatedly under the situation about not burnouting; Till after-flame; Hot gas is 3 outputs of hot gas efferent duct from the top, and heavier dust accumulates on fire grate 2, and reduce flue dust and crock and get into heat exchange mechanism 6.Hot gas efferent duct 3 other ends connect the hot air intake 7 before heat exchange mechanism 6 heat exchanges, and first heat outlet 8 after heat exchange mechanism 6 heat exchanges connects the hot equipment of using through pipeline 9, and the atmosphere import 10 before heat exchange mechanism 6 heat exchanges is communicated with first heat outlet 8.Heat exchange mechanism 6 is made up of first counterflow heat exchanger 11 and second counterflow heat exchanger, 12 serial connections; The lower end of first counterflow heat exchanger 11 and second counterflow heat exchanger 12 is provided with the deashing chamber 13 of connection; Hot gas in the hot gas efferent duct 3 is sent into the hot air intake 7 of first counterflow heat exchanger 11 downwards; Upwards get into second counterflow heat exchanger 12 through deashing chamber 13 by the lower end; Atmosphere in the atmosphere import 10 is sent into second counterflow heat exchanger 12 downwards, upwards gets into first counterflow heat exchanger 11 by the lower end and is communicated with first heat outlet 8.The waste heat of second counterflow heat exchanger 12 outlet 14 is connected in series the 3rd counterflow heat exchanger 15, the three counterflow heat exchangers 15 from the top bottom is that second heat outlet 17 on cold wind import 16, the three counterflow heat exchangers 14 tops is communicated with bodies of heater 1 inside.Thermal current directly gets into first counterflow heat exchanger, 11 tops from hot gas efferent duct 3; From top to bottom; Get into 12 exchanges of second counterflow heat exchanger again, the thermal current of second counterflow heat exchanger 12 is from the bottom up, and the thermal current of the 3rd counterflow heat exchanger 15 is from top to bottom; Continuous three counterflow exchange, exhaust gas temperature controls to 80 to the end
oBelow the C, Btu utilization can reach more than 95%.The upper end of first counterflow heat exchanger 11, second counterflow heat exchanger 12 and the 3rd counterflow heat exchanger 14 is provided with movable shoot door 18.When black dirt occurring in the exchange pipe shoot door 18 is opened directly and can be cleared up, do not have the dead angle, deashing process is simple and convenient.Medium in the exchange heat process is an air, is divided into two sections air-supplies.First section is to send into air exchange downwards from second counterflow heat exchanger, 12 tops, and getting into behind first counterflow heat exchanger 11 is to exchange from the bottom up, is delivered to hot equipment such as drying assembly line or drying room hot blast feeding by 8 outputs of first heat outlet to peak.Second section exchange is that the 3rd counterflow heat exchanger 14 is sent into air exchange from the bottom up, to the top by the burning that heats up in the loopback body of heater 1 again of second heat outlet 17, like this with energy efficient utilization that fuel produced.The utility model hot-blast stove energy exchange medium is the exchange of gas gas, and air does not exist fouling and coking, inflammable, explosive phenomenon can not occur, and gas gas exchanges directly with air heat, directly supplies the production demand.Optimum benefits is that programming rate is very fast, and when furnace temperature air-flow ascending air got into exchange point, the medium air-flow was in company with rising, and the short time just can be satisfied the required temperature of production, and beginning regular supply hot gas is produced, and the centre does not need miscellaneous equipment control.Compare with steam boiler supply drying plant, can be energy-conservation more than 65%, compare with heat conducting oil boiler supply drying plant, can be energy-conservation more than 40%.Above-described embodiment describes the preferred implementation of the utility model energy efficient hot air furnace; Be not that design and scope to utility model limits; Under the prerequisite that does not break away from the utility model scheme; Various external form modification and improvement that those skilled in the art make the technical scheme of the utility model all should fall into the protection domain of the utility model energy efficient hot air furnace.
Claims (5)
1. energy efficient hot air furnace; Comprise body of heater; Fire grate is set in the body of heater; Connect the hot gas efferent duct on the body of heater, it is characterized in that hot gas efferent duct (3) one ends connect the top that is arranged on body of heater (1), be provided with the most combustion chamber (5) that (4) extension is increased along the furnace wall in the body of heater (1) of hot gas efferent duct (3) below.
2. energy efficient hot air furnace according to claim 1; It is characterized in that the hot air intake (7) before hot gas efferent duct (3) other end connects heat exchange mechanism (6) heat exchange; First heat outlet (8) after heat exchange mechanism (6) heat exchange connects the hot equipment of using through pipeline (9), and the atmosphere import (10) before heat exchange mechanism (6) heat exchange is communicated with first heat outlet (8).
3. energy efficient hot air furnace according to claim 2; It is characterized in that heat exchange mechanism (6) is made up of first counterflow heat exchanger (11) and second counterflow heat exchanger (12) serial connection; The lower end of first counterflow heat exchanger (11) and second counterflow heat exchanger (12) is provided with the deashing chamber (13) of connection; Hot gas in the hot gas efferent duct (3) is sent into the hot air intake (7) of first counterflow heat exchanger (11) downwards; Upwards get into second counterflow heat exchanger (12) through deashing chamber (13) by the lower end; Atmosphere in the atmosphere import (10) is sent into second counterflow heat exchanger (12) downwards, upwards gets into first counterflow heat exchanger (11) by the lower end and is communicated with first heat outlet (8).
4. energy efficient hot air furnace according to claim 3; The waste heat outlet (14) that it is characterized in that second counterflow heat exchanger (12) is connected in series the 3rd counterflow heat exchanger (15) from the top; The bottom of the 3rd counterflow heat exchanger (15) is cold wind import (16), and second heat outlet (17) on the 3rd counterflow heat exchanger (14) top is communicated with body of heater (1) inside.
5. energy efficient hot air furnace according to claim 4 is characterized in that the upper end of first counterflow heat exchanger (11), second counterflow heat exchanger (12) and the 3rd counterflow heat exchanger (14) is provided with movable shoot door (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201723457U CN202119091U (en) | 2011-05-26 | 2011-05-26 | High-efficiency energy-saving air heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201723457U CN202119091U (en) | 2011-05-26 | 2011-05-26 | High-efficiency energy-saving air heating furnace |
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| Publication Number | Publication Date |
|---|---|
| CN202119091U true CN202119091U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201723457U Expired - Fee Related CN202119091U (en) | 2011-05-26 | 2011-05-26 | High-efficiency energy-saving air heating furnace |
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| Country | Link |
|---|---|
| CN (1) | CN202119091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278816A (en) * | 2011-05-26 | 2011-12-14 | 黄云生 | Efficient energy-saving hot blast furnace |
| CN107255364A (en) * | 2017-07-28 | 2017-10-17 | 张志村 | A kind of classification countercurrent heating module Assembled environmental power economized boiler |
-
2011
- 2011-05-26 CN CN2011201723457U patent/CN202119091U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278816A (en) * | 2011-05-26 | 2011-12-14 | 黄云生 | Efficient energy-saving hot blast furnace |
| CN107255364A (en) * | 2017-07-28 | 2017-10-17 | 张志村 | A kind of classification countercurrent heating module Assembled environmental power economized boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140526 |