CN102563745A - Heat accumulating type heated brick bed capable of supplying hot air - Google Patents

Heat accumulating type heated brick bed capable of supplying hot air Download PDF

Info

Publication number
CN102563745A
CN102563745A CN201210026522XA CN201210026522A CN102563745A CN 102563745 A CN102563745 A CN 102563745A CN 201210026522X A CN201210026522X A CN 201210026522XA CN 201210026522 A CN201210026522 A CN 201210026522A CN 102563745 A CN102563745 A CN 102563745A
Authority
CN
China
Prior art keywords
brick bed
combustion chamber
heatable brick
fire door
fire
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.)
Granted
Application number
CN201210026522XA
Other languages
Chinese (zh)
Other versions
CN102563745B (en
Inventor
庄宇
刘兴山
张秀丽
徐超
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.)
Liaoning Technical University
Original Assignee
Liaoning Technical University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liaoning Technical University filed Critical Liaoning Technical University
Priority to CN 201210026522 priority Critical patent/CN102563745B/en
Publication of CN102563745A publication Critical patent/CN102563745A/en
Application granted granted Critical
Publication of CN102563745B publication Critical patent/CN102563745B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Solid-Fuel Combustion (AREA)

Abstract

The invention discloses a heat accumulating type heated brick bed capable of supplying hot air, which comprises a heat source body, a pebble heat accumulating bed, heated brick bed plates and a chimney, wherein the heated brick bed plates are supported on the ground by heated brick bed plate pillars; a gap between the heated brick bed plates and the pebble heat accumulating bed is a heated brick bed body smoke and fire channel; the chimney is arranged to be perpendicular to the heated brick bed plates and communicated with the heated brick bed body smoke and fire channel; the heat source body comprises a biomass hot blast furnace and a heating pipe; the biomass hot blast furnace comprises a combustion chamber of which an outer end is opened, and a smoke and fire outlet which is arranged at an inner end of the biomass hot blast furnace; the smoke and fire outlet is communicated with the heated brick bed body smoke and fire channel; a dust accumulating pool is arranged below the smoke and fire outlet; the combustion chamber is provided with a furnace door; a lower side of the furnace door is arranged on a furnace door shaft; the furnace door shaft is fixed on a lower part of the combustion chamber; a fire grate is arranged below the combustion chamber; an ash falling box is arranged below the fire grate; an upside of the combustion chamber is fixedly connected with an air feeding chamber; an air pipe is fixed at an inner end of the air feeding chamber; an inlet of the air pipe is communicated with the air feeding chamber, and an outlet of the air pipe is communicated with an inlet of the heating pipe; the heating pipe is arranged in the heated brick bed body smoke and fire channel; an outlet of the heating pipe is connected with an air discharge pipe; and an outlet of the air discharge pipe is arranged out of the heated brick bed and is led to an indoor space.

Description

A kind of accumulation of heat heated kang of hot blast feeding
Technical field
The present invention relates to heating of house facility technology field, be specifically related to a kind of accumulation of heat heated kang of hot blast feeding.
Background technology
At present, mode heating such as traditional heated kang, wall with flues, stove, native heating installation are still continued to use in the rural area of northern China cold district, and wherein heated kang is topmost heating system, the many and dispersion of country residents, and heating area is big, difficult realization central heating; Simultaneously, heated kang can use any type of biomass fuel, can not increase peasant's financial burden.Traditional heated kang ubiquity fuel wood consumption is big, waste fuel, and indoor heat dissipation capacity is few, and the thermal efficiency is low, the problem that the indoor heating effect is bad, and have 60 ~ 70% thermal waste to fall approximately; The a heatable brick bed surface temperature is inhomogeneous, the accumulation of heat weak effect, especially at night owing to have a rest that nobody continues to add and burns fuel wood and cause a heatable brick bed face and indoor temperature decline, the room comfort level is poor.
Summary of the invention
The problem of and heating indoor thermal comfort difference low to the existing heated kang thermal efficiency, the present invention provides the accumulation of heat heated kang of a kind of convenience, cleaning, environmental protection, energy-conservation hot blast feeding.
The accumulation of heat heated kang of hot blast feeding provided by the invention comprises heat source body, pebble heat storage bed, a heatable brick bed plate and chimney, is provided with a heatable brick bed face of coating type above a heatable brick bed plate; The a heatable brick bed plate leaves the gap and forms a heatable brick bed body fireworks channel by a heatable brick bed plate shore supports on the ground between a heatable brick bed plate and the pebble heat storage bed, chimney is arranged and outer end opening perpendicular to a heatable brick bed plate; A heatable brick bed body fireworks channel is offered discharge flue with the chimney junction is communicated with both, and said heat source body comprises biomass thermal wind furnace and steam heating pipe, and the biomass thermal wind furnace comprises fire door, combustion chamber, plenum chamber, fire grate, ash bin and airduct fall; The combustion chamber is the uncovered body structure in outer end, and the inner offers the pyrotechnics outlet, and the pyrotechnics outlet is communicated with a heatable brick bed body fireworks channel; The outer side-lower of pyrotechnics outlet is provided with the dust stratification pond, and the entry of combustion chamber place is provided with fire door, and the fire door downside is installed on the fire door axle; The fire door axle is fixed on the outside of bottom, combustion chamber, and the fire door top is provided with the fire door card, and the below, combustion chamber is provided with the fire grate of clearance type; The fire grate below is provided with ash bin, and the combustion chamber upper fixed connects the plenum chamber of arc, and plenum chamber covers on the top, combustion chamber; Plenum chamber lower edge and combustion chamber upper limb fitted seal, the sealing of plenum chamber outer end, the inner is provided with the gas outlet; The gas outlet welding is airduct fixedly, and the airduct arrival end is communicated with plenum chamber, and the wind tube outlet end is fixed with the steam heating pipe inlet and is connected; Steam heating pipe by be installed in the pebble heat storage bed inner the steam heating pipe bracket support; Steam heating pipe evenly is arranged side by side in a heatable brick bed body fireworks channel at interval, and the steam heating pipe port of export is connected with discharge pipe, and the discharge pipe port of export is arranged on heated kang and leads to the indoor of need heating outward.
Said plenum chamber one side is fixedly connected with ajutage; Ajutage is communicated with the plenum chamber junction; The ajutage other end links to each other with the outside speed governing air blast of heated kang; The connection of speed governing air blast is arranged on outdoor home-use wind-driven generator, sends into the speed and the size of hot blast in the speed regulation airduct through change speed governing air blast, thereby realizes the adjustment of indoor temperature.
The setting of sliding relatively of said fall ash bin and ground, the ash bin outside that falls is provided with the ash bin handle, and the biomass thermal wind furnace extracted and sent into to the ash bin that falls can out through the ash bin handle that falls.
Said fire door card is installed on the axis, and axis is fixed on outside the plenum chamber, and the fire door card can rotate around axis, and the axis outer end is provided with clip shutter and prevents that the fire door card from dropping from axis.
Said ajutage, combustion chamber, plenum chamber, airduct, steam heating pipe and discharge pipe are heating resisting metal and process.
During use; Biomass fuels such as agricultural crop straw are added the combustion chamber light the pyrotechnics entering a heatable brick bed body fireworks channel that the back produces; The a heatable brick bed face promptly is heated, and the air in the plenum chamber also is heated simultaneously, the cobble heat energy storage when the hot flue gas after the burning passes through a heatable brick bed body fireworks channel in the heating pebble heat storage bed; Heat the air in the steam heating pipe simultaneously, flue gas is after chimney is discharged outdoor; The biomass fuel afterburnt is closed fire door, and the interior air of a heatable brick bed body is no longer circulated, and opens the power switch of speed governing air blast; Be connected with ajutage between speed governing air blast and the plenum chamber; Then the hot-air in the plenum chamber can be sent into indoorly advertising of speed governing air blast via airduct, steam heating pipe and discharge pipe under the effect, and indoor cold air replenishes into air blast again, the quick convective motion of cold and hot air like this; Form hot air-conditioning effect; Indoor will the intensification very soon, speed governing air blast running required electric power is supplied with environmental protection and saves energy by being arranged on outdoor home-use wind-driven generator.
The invention has the beneficial effects as follows:
(1) this heated kang can be used for the heat energy behind the biomass fuel combustion simultaneously to be stored in the accumulation of heat of pebble heat storage bed, the heating a heatable brick bed face in a heatable brick bed body and send into the air of heating indoor; More traditional heated kang thermal loss is little, utilization rate is high; Can make a heatable brick bed face length time reach needed by human body thermal comfort temperature, and it is few to produce the fuel of same heat input;
(2) combustion chamber below is provided with the movable ash bin that falls, and can extract out and sends into the biomass thermal wind furnace through the ash bin handle that the falls ash bin that will fall, and makes the convenient and cleaning of removing of fuel ashes;
(3) plenum chamber connects the speed governing air blast through ajutage, and the effect of advertising through the speed governing air blast is sent into the hot-air that adds in the plenum chamber indoor, makes indoor intensification; Indoor cold air replenishes into air blast simultaneously; The quick convective motion of cold and hot air like this forms hot air-conditioning effect, good heating effect.
Description of drawings
Fig. 1 is the heated kang overall structure sketch map of the embodiment of the invention;
Fig. 2 is the plan structure sketch map that the heated kang of the embodiment of the invention is removed a heatable brick bed face;
Fig. 3 is the hot-blast stove structural representation of the embodiment of the invention;
Fig. 4 is the hot-blast stove left side TV structure sketch map of embodiment of the invention fire door closed condition;
Fig. 5 is the right TV structure sketch map of the hot-blast stove of the embodiment of the invention;
Among the figure: 1 combustion chamber, 2 a heatable brick bed body fireworks channels, 3 a heatable brick bed faces, 4 pebble heat storage beds, 5 steam heating pipes, 6 chimneys, 7 speed governing air blasts; 8 ajutages, 9 plenum chambers, 10 airducts, 11 slip-knots, 12 discharge pipes, 13 fire doors; 14 ash bins that fall, 15 fire grates, 16 fire door cards, 17 axis, 18 clip shutters, 19 fire door axles; 20 fall ash bin handles, the outlet of 21 pyrotechnics, 22 a heatable brick bed plates, 23 dust stratification ponds, 24 a heatable brick bed plate pillars, 25 steam heating pipe carriages.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Like Fig. 1, shown in Figure 2, the accumulation of heat heated kang of hot blast feeding of the present invention comprises heat source body, pebble heat storage bed 4, a heatable brick bed plate 22 and chimney 6; Be provided with a heatable brick bed face 3 of coating type above a heatable brick bed plate 22, a heatable brick bed face 3 is the earth oven dry of wiping one's face, and a heatable brick bed plate 22 is a precast rc slab; A heatable brick bed plate 22 is supported on the ground by a heatable brick bed plate pillar 24, and a heatable brick bed plate pillar 24 is a brick setting, leaves the gap between a heatable brick bed plate 22 and the pebble heat storage bed 4 and forms a heatable brick bed body fireworks channel 2; Chimney 6 arranges and outer end opening that perpendicular to a heatable brick bed plate 22 a heatable brick bed body fireworks channel 2 is offered discharge flue with chimney 6 junctions is communicated with both, and said heat source body comprises biomass thermal wind furnace and steam heating pipe 5; Like Fig. 3, shown in Figure 4, the biomass thermal wind furnace comprises fire door 13, combustion chamber 1, plenum chamber 9, fire grate 15, fall ash bin 14 and airduct 10, and combustion chamber 1 is the uncovered body structure in outer end; The inner offers pyrotechnics outlet 21, and pyrotechnics outlet 21 is communicated with a heatable brick bed body fireworks channel 2, and pyrotechnics exports 21 outer side-lowers and is provided with dust stratification pond 23; 1 porch, combustion chamber is provided with fire door 13, and fire door 13 downsides are installed on the fire door axle 19, and fire door axle 19 is fixed on the outside of 1 bottom, combustion chamber; Fire door 13 tops are provided with fire door card 16, and 1 below, combustion chamber is provided with the fire grate 15 of clearance type, and fire grate 15 belows are provided with ash bin 14; Combustion chamber 1 upper fixed connects the plenum chamber 9 of arc, and plenum chamber 9 covers on 1 top, combustion chamber, plenum chamber 9 lower edges and combustion chamber 1 upper limb fitted seal; The sealing of plenum chamber 9 outer ends, the inner is provided with the gas outlet, and the gas outlet welding is airduct 10 fixedly; Airduct 10 arrival ends are communicated with plenum chamber 9, and airduct 10 ports of export are fixed with steam heating pipe 5 inlets and are connected, and airduct 10 is because the long sectional making that adopts; Utilize slip-knot 11 to connect between every section, airduct 10 arrival ends are communicated with plenum chamber 9, and airduct 10 ports of export are set to three branch branch wind pipes; Each divides branch wind pipe to be connected with a steam heating pipe 5 inlets, and steam heating pipe 5 supports by being installed in pebble heat storage bed 4 inner steam heating pipe carriages 25, and steam heating pipe carriage 25 is processed for the round steel welding; Three steam heating pipes 5 evenly are arranged side by side in a heatable brick bed body fireworks channel 2 at interval, and steam heating pipe 5 ports of export are connected with discharge pipe 12, and discharge pipe 12 ports of export are arranged on heated kang and lead to the indoor of need heating outward.
Said plenum chamber 9 one face down bondings connect and are fixed with ajutage 8; Ajutage 8 is communicated with plenum chamber 9 junctions; Ajutage 8 other ends link to each other with the outside speed governing air blast 7 of heated kang; Speed governing air blast 7 is arranged on outdoor home-use wind-driven generator through the lead connection, sends into the speed and the size of hot blast in the speed regulation airduct 10 through change speed governing air blast 7, thereby realizes the adjustment of indoor temperature.
Settings of sliding relatively of said fall ash bin 14 and ground, ash bin 14 outsides that fall are provided with ash bin handle 20, and the ash bin 14 that falls can be through falling ash bin handle 20 extractions and send into the biomass thermal wind furnace.
Said fire door card 16 is installed on the axis 17; Axis 17 is fixed on outside the plenum chamber 9, and fire door card 16 can be around axis 17 rotations, and axis 17 outer ends are provided with clip shutter 18 and prevent that fire door card 16 from dropping from axis 17; When fire door card 16 rotates to the upright position; The fire door 13 of closing is locked, and during fire door card 16 rotation horizontal levels, fire door 13 can be opened.
Said ajutage 8, biomass thermal wind furnace, airduct 10, steam heating pipe 5 and discharge pipe 12 are heating resisting metal and process.
Utilize accumulation of heat heated kang provided by the invention; Every day winter heating phase, early respectively utilized living beings Combustion of Hot Air Furnace dried maize straw 8 kilogram three evening at noon; Adopting power is the speed governing air blast 7 of 30W, the home-use wind-driven generator that power is 500W; The speed governing air blast was interrupted work accumulative total 7 every days 10 hours, and the agricultural residence that can the guarantee construction area 100 ㎡ wherein average heating temperature in 60 ㎡ rooms reaches 18 ℃, and auxiliary room average room temperature such as kitchen, warehouse reach 10 ℃; But compare fuel saving more than 70% with ordinary heating cooking stove or heated kang, agricultural residence electricity consumption every day of construction area 100 ㎡ is 0.3 degree only; After opening the speed governing air blast, can improve 1 ℃ of indoor temperature in per 10 minutes, reach required heat supply temperature and can close speed governing air blast 7 when indoor; Night for guarantee indoor thermal comfort temperature always low grade open speed governing air blast 7, and make air blast be in the noiseless state, save the energy.
Practice shows; The accumulation of heat heated kang of hot blast feeding of the present invention combines the biomass thermal wind furnace with energy storage heated kang, save biomass fuel, has improved the thermal comfort and the overall efficiency of heated kang self greatly; Improved the thermal environment quality of agricultural residence to a certain extent; Significant to improving China's rural area heating condition, and its energy-conserving and environment-protective, promotional value is very big.

Claims (5)

1. the accumulation of heat heated kang of a hot blast feeding comprises heat source body, pebble heat storage bed, a heatable brick bed plate and chimney, is provided with a heatable brick bed face of coating type above a heatable brick bed plate; The a heatable brick bed plate leaves the gap and forms a heatable brick bed body fireworks channel by a heatable brick bed plate shore supports on the ground between a heatable brick bed plate and the pebble heat storage bed, chimney is arranged and outer end opening perpendicular to a heatable brick bed plate; A heatable brick bed body fireworks channel is offered discharge flue with the chimney junction is communicated with both, and it is characterized in that: said heat source body comprises biomass thermal wind furnace and steam heating pipe, and the biomass thermal wind furnace comprises fire door, combustion chamber, plenum chamber, fire grate, ash bin and airduct fall; The combustion chamber is the uncovered body structure in outer end, and the inner offers the pyrotechnics outlet, and the pyrotechnics outlet is communicated with a heatable brick bed body fireworks channel; The outer side-lower of pyrotechnics outlet is provided with the dust stratification pond, and the entry of combustion chamber place is provided with fire door, and the fire door downside is installed on the fire door axle; The fire door axle is fixed on the outside of bottom, combustion chamber, and the fire door top is provided with the fire door card, and the below, combustion chamber is provided with the fire grate of clearance type; The fire grate below is provided with ash bin, and the combustion chamber upper fixed connects the plenum chamber of arc, and plenum chamber covers on the top, combustion chamber; Plenum chamber lower edge and combustion chamber upper limb fitted seal, the sealing of plenum chamber outer end, the inner is provided with the gas outlet; The gas outlet welding is airduct fixedly, and the airduct arrival end is communicated with plenum chamber, and the wind tube outlet end is fixed with the steam heating pipe inlet and is connected; Steam heating pipe by be installed in the pebble heat storage bed inner the steam heating pipe bracket support; Steam heating pipe evenly is arranged side by side in a heatable brick bed body fireworks channel at interval, and the steam heating pipe port of export is connected with discharge pipe, and the discharge pipe port of export is arranged on heated kang and leads to the indoor of need heating outward.
2. the accumulation of heat heated kang of hot blast feeding according to claim 1; It is characterized in that said plenum chamber one side is fixedly connected with ajutage; Ajutage is communicated with the plenum chamber junction; The ajutage other end links to each other with the outside speed governing air blast of heated kang, and the connection of speed governing air blast is arranged on outdoor home-use wind-driven generator.
3. the accumulation of heat heated kang of hot blast feeding according to claim 1 is characterized in that the setting of sliding relatively of said fall ash bin and ground, and the ash bin outside that falls is provided with the ash bin handle.
4. the accumulation of heat heated kang of hot blast feeding according to claim 1 is characterized in that said fire door card is installed on the axis, and axis is fixed on outside the plenum chamber, and the fire door card can rotate around axis, and the axis outer end is provided with clip shutter.
5. the accumulation of heat heated kang of hot blast feeding according to claim 1 is characterized in that said ajutage, combustion chamber, plenum chamber, airduct, steam heating pipe and discharge pipe are heating resisting metal and process.
CN 201210026522 2012-02-07 2012-02-07 Heat accumulating type heated brick bed capable of supplying hot air Expired - Fee Related CN102563745B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210026522 CN102563745B (en) 2012-02-07 2012-02-07 Heat accumulating type heated brick bed capable of supplying hot air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210026522 CN102563745B (en) 2012-02-07 2012-02-07 Heat accumulating type heated brick bed capable of supplying hot air

Publications (2)

Publication Number Publication Date
CN102563745A true CN102563745A (en) 2012-07-11
CN102563745B CN102563745B (en) 2013-11-06

Family

ID=46409865

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201210026522 Expired - Fee Related CN102563745B (en) 2012-02-07 2012-02-07 Heat accumulating type heated brick bed capable of supplying hot air

Country Status (1)

Country Link
CN (1) CN102563745B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103017246A (en) * 2012-12-28 2013-04-03 辽宁工程技术大学 Heat storage pit warm in winter and cool in summer
CN103673057A (en) * 2013-12-24 2014-03-26 郭湘江 Heated brick bed type floor heating structure
CN103939976A (en) * 2014-05-16 2014-07-23 中天新能住宅技术有限公司 Heating phase degree thermal storage bed
CN110017527A (en) * 2019-03-06 2019-07-16 山西省农业生态环境建设总站 A kind of connection a heatable brick bed thermal cycling process
CN110567154A (en) * 2019-09-19 2019-12-13 姜立明 Hot air generating device and application thereof, and household heated kang system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2781214Y (en) * 2005-02-18 2006-05-17 梁志 Hot-blast heating device
CN201903081U (en) * 2010-12-13 2011-07-20 天津城市建设学院 Heat accumulating type heated brick bed
CN202452586U (en) * 2012-02-07 2012-09-26 辽宁工程技术大学 Heat storage heated brick bed capable of supplying hot air

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2781214Y (en) * 2005-02-18 2006-05-17 梁志 Hot-blast heating device
CN201903081U (en) * 2010-12-13 2011-07-20 天津城市建设学院 Heat accumulating type heated brick bed
CN202452586U (en) * 2012-02-07 2012-09-26 辽宁工程技术大学 Heat storage heated brick bed capable of supplying hot air

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103017246A (en) * 2012-12-28 2013-04-03 辽宁工程技术大学 Heat storage pit warm in winter and cool in summer
CN103017246B (en) * 2012-12-28 2015-05-27 辽宁工程技术大学 Heat storage pit warm in winter and cool in summer
CN103673057A (en) * 2013-12-24 2014-03-26 郭湘江 Heated brick bed type floor heating structure
CN103673057B (en) * 2013-12-24 2016-08-17 郭湘江 Heated brick bed type floor heating structure
CN103939976A (en) * 2014-05-16 2014-07-23 中天新能住宅技术有限公司 Heating phase degree thermal storage bed
CN110017527A (en) * 2019-03-06 2019-07-16 山西省农业生态环境建设总站 A kind of connection a heatable brick bed thermal cycling process
CN110567154A (en) * 2019-09-19 2019-12-13 姜立明 Hot air generating device and application thereof, and household heated kang system

Also Published As

Publication number Publication date
CN102563745B (en) 2013-11-06

Similar Documents

Publication Publication Date Title
CN101144683B (en) Solar energy hot air current heated and material dried method produced by power-free style
CN102563745B (en) Heat accumulating type heated brick bed capable of supplying hot air
CN107120824B (en) A kind of Biomass Briquette Boiler system
CN204232265U (en) A kind of tobacco-leaf bulk curing barn utilizing biomass fuel
CN103017246B (en) Heat storage pit warm in winter and cool in summer
CN206669804U (en) Multifunctional heating water heating stove
CN201532085U (en) Device for baking agricultural and sideline products by biomass energy
CN202452586U (en) Heat storage heated brick bed capable of supplying hot air
CN202613569U (en) Heat-accumulating heated brick bed warm in winter and cool in summer
CN102705895B (en) Thermal storage heated brick bed capable of being warm in winter and cool in summer
CN204923434U (en) Living beings hot -blast furnace for big -arch shelter
CN210624580U (en) Hot air furnace
CN203758209U (en) Sealing type hot-blast stove
CN201706671U (en) Automatic control high efficiency energy-saving coal hot air furnace
CN205090607U (en) Energy -saving hot -blast furnace of intelligence control by temperature change
CN204466429U (en) Booth fireplace style heating device
CN214275826U (en) Energy-saving environment-friendly micro-smoke gasification coal and firewood stove
CN1963358A (en) Hot-blast stove
CN203848495U (en) High-efficiency safe environmental-friendly automatic combusting warming boiler combusting plant fuel
CN201221841Y (en) Air-warming stove
CN203181985U (en) Flue-cured tobacco room system taking biologic oil as fuel
CN203040299U (en) Greenhouse circulating type heating furnace
CN203375480U (en) Civil biomass large stove type warm air furnace
CN201567311U (en) Double-system dedicated biomass gasifier for rural tobacco leaf curing
CN202145875U (en) Double-layered curing barn with four-split central heating furnace

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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: 20131106

Termination date: 20140207