CN2075764U - Warm air stove - Google Patents
Warm air stove Download PDFInfo
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- CN2075764U CN2075764U CN 89220465 CN89220465U CN2075764U CN 2075764 U CN2075764 U CN 2075764U CN 89220465 CN89220465 CN 89220465 CN 89220465 U CN89220465 U CN 89220465U CN 2075764 U CN2075764 U CN 2075764U
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- heat exchanger
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Abstract
The utility model relates to a warm air stove used for drying the agricultural and sideline products, the light industry products, etc. Such as the foodstuffs, the seeds, etc., comprising a frame, a stove body, a heat exchanger, a warm air chamber, a stove cover and a smoke draught system. All the components are designed to form an organic integration. The stove body is in the lower part, the heat exchanger is in the upper part, an air tube is horizontally arranged, the air flows in the tube, and the smoke flows out of the tube. The smoke sweeps the air tube with the multi back strokes, and the air has the single stroke in the tube. The smoke flows in the smoke duct and the air flows in the air duct to avoid the combined pollution to the air by the smoke. The utility model can be designed of three stove types with the low temperature, the mild temperature and the high temperature. The three stove types can be designed with the capacity of 200 to 1000 thousand kilocalories or much larger according to the demands of the production or the life.
Description
The utility model belongs to the hot-blast stove of indirect.
At present, the hot-blast stove of typical indirect has: 1, the incorgruous spiral grooved tube heat-exchanging furnace of RL-500 type bull of the land-reclaimable academy of sciences in Heilongjiang Province design is published in " modernization agricultural " the 10th phase in 1989.This stove is the two body fume tube type type of furnaces, and not heat exchange of body of heater itself in order to prevent to burn out the former arrangement pipes of heat exchanger, is mixed cold wind in flue gas, flue-gas temperature is reduced to 600 ℃.2, by the indirect hot-blast stove of unit consolidations such as Chinese agriculture engineering designing institute design, publication is in " the practical engineering in rural area " the 6th phase in 1989.This stove is the one vertical barrel type of furnace.Design outlet temperature height when being used for low temperature drying, must being mixed cold wind and could use.
More than two kinds of type of furnaces, dwindled the cold fluid and hot fluid temperature difference in the stove, reduced the average heat transfer coefficient of heat-transfer surface, in order to guarantee certain thermal efficiency, need to increase heat-transfer surface, it is many to consume steel, the manufacturing cost height, it is big to take up room.Because its design feature makes cold fluid many backhaul refractions in stove, windage is big, the also corresponding increasing of the blower fan power of Pei Beiing like this.
The purpose of this utility model is to design a kind of construct reasonable, high, the widely applicable novel hot-blast stove of the thermal efficiency.Difference according to the required temperature of drying materials, design low temperature (20-80 ℃), middle temperature (80-140 ℃) and three kinds of type of furnaces of high temperature (140-200 ℃), these three kinds of type of furnaces again can be by producing or living needs, design 20 100 ten thousand kilocalories or bigger different capabilities, in order to agricultural byproducts and light industrial goods or heating for residential area and indoor dehumidifications etc. such as oven dry grain, seeds.
Design philosophy of the present utility model is, is one with each parts combination, and body of heater is following, and heat exchanger is last.Airduct is horizontally disposed, leaks out in the pipe, walks cigarette outside the pipe.The many backhauls of sweep of gases airduct outer wall, air is one-stroke in pipe.This stove cigarette is walked flue, and wind is walked the air channel, seals between flue and the air channel, and flue gas and air do not have the mixer meeting, has stopped the pollution of flue gas to the oven dry thing.
The utility model mainly is made up of framework, body of heater, heat exchanger, hot blast chamber, bonnet and flue gas induced draught system.Framework is made up of three Men Liang and four road horizontal beams, and the trough girder footing is fixed on the basis.
Body of heater surrounds cuboid by boiler plate, and one week of furnace body plate base is welded with footing piece, and body of heater is sitting on the basis.Be burner hearth in the body of heater, lower furnace portion is furnished with fixed grate, and fire grate top be the combustion chamber, fixing refractory lining on the body of heater steel plate inwall around the combustion chamber, and the colored hole crown that is shaped is made with lightweight refracrory in top, combustion chamber.The top of flower hole crown is a secondary furnace.Front in fire box is provided with fire door.In the outer periphery of body of heater steel plate, along continuous straight runs difference row is welded with fin.Be welded with the arc telescopic joint in one week of body of heater steel plate upper edge.
Heat exchanger is welded into cuboid by two ends tube sheet, forebody-afterbody plate and upper plate, in vertical partition plate, horizontal baffle and airduct are arranged.Airduct is divided into tubule and extra heavy pipe, and tubule is arranged on top more, and extra heavy pipe is arranged less in the bottom.Airduct all is that level error is arranged and put, and tubule penetrates two ends tube sheet and intermediate vertical dividing plate, and vertical partition plate can make flue gas flow in the many up and down backhauls of heat exchanger.Go up most at extra heavy pipe on the horizontal center line of a comb, it is horizontal baffle that a part is sealed with steel plate in the slit between the tube and tube, and the part of opening wide at the hot blast end is a smoke inlet.The upper plate of heat exchanger is welded with the suspension rod bolt, heat exchanger is suspended on the upper beam of framework.One week of lower edge of heat exchanger is welded with the arc telescopic joint, with the corresponding binding of telescopic joint of body of heater.On upper plate, have shoot door, have ash-digging gate in precursor plate bottom.On the back body plate of heat exchanger afterbody, have outlet flue.
The flue gas induced draught system is made up of smoke pipe, smoke induced draught fan and chimney.Smoke pipe one is terminated at the heat exchanger outlet flue, another termination smoke induced draught fan, and chimney is connected on the outlet of air-introduced machine.What smoke induced draught fan was equipped with is buncher, and control exhaust smoke level and coal consumption are adjusted the overheated coefficient of air, thereby regulates the outlet temperature of hot blast.
Bonnet is made up of bonnet plate, worry net and baffle plate.The bonnet plate is fixed on the inboard on the framework, and the forward and backward two sides and the end face of body of heater and heat exchanger are sealed.An end shield that enters cold wind at heat exchanger has the worry net, and the oven body part below it is covered with " L " shape baffle plate, seals a body of heater part, and uncovered part is the cold wind import, and cold wind import and hot-blast outlet are the diagonal angle.The fire door of the corresponding body of heater of bonnet plate and the shoot door of heat exchanger, ash-digging gate and exhanst gas outlet have adapt with it uncovered.All leave the ventilation interlayer between bonnet plate and baffle plate and body of heater and the heat exchanger.
The hot blast chamber is the rectangular shape that is welded into by framework and iron plate.The hot blast chamber is installed in a side of body of heater and heat exchanger generation hot blast, and the hot blast chamber has air outlet, links to each other with air-heater by air duct.
When hot-blast stove was started working, air-heater and smoke induced draught fan started simultaneously.Coal combustion in the combustion chamber produces high-temperature flue gas, advances secondary furnace by crown flower hole, at first washes away following a few row's extra heavy pipes of heat exchanger, pass through the uncovered of horizontal baffle again, walk around vertical partition plate, the circuitous up and down tubule that repeatedly washes away sucks chimney from outlet by smoke induced draught fan with flue gas at last and discharges.
The air channel that produces hot blast has two: the first, and cold wind enters airduct from considering net, and the heat of airduct is taken away; The second, cold wind enters ventilation interlayer between baffle plate and cover plate and the body of heater from the open-mouth of baffle plate, and the temperature of body of heater surface and fin is taken away.This two transportation work style enters into the hot blast chamber and mixes the back and blown out by air-heater and material dried etc.
The utility model adopts body of heater and heat exchanger to link by telescopic joint, and heat exchanger is suspended in the upper beam of framework, is vertical overall structure.The thermal expansion of body of heater and heat exchanger can be absorbed by telescopic joint.Make and install firmly, security of operation, compact conformation, it is little to take up room, and saves steel.
Building on the combustion chamber inwall of hot-blast stove has refractory lining, and there is colored hole crown the top, combustion chamber.On the outer wall of body of heater, be welded with level error row's fin, between body of heater and bonnet plate and the baffle plate ventilation interlayer arranged.Fuel can fully burn in the combustion chamber like this, and evenly by crown flower hole, thermal discharge is big for flue gas.Furnace lining also can be protected the body of heater steel plate.Because adopt the opening and the hot-blast outlet of baffle plate to be diagonal position, the cold wind in the ventilation interlayer is taken away heat, the path of cold wind is approaching, and air quantity is even, washes away no dead angle.Both protected that body of heater is unlikely to be burnt out, and made the body of heater high-temperature region carry out heat exchange again, increased heat, improved the thermal efficiency.
The utility model adopts the warm-air pipe level error of heat exchanger to arrange and puts, and vertical partition plate and horizontal baffle make flue gas transversal flow warm-air pipe, many backhaul refractions in heat exchanger, and the cold fluid and hot fluid countercurrent flow under the certain situation of the thermal efficiency, improves the coefficient of heat transfer.Because air one-stroke in airduct, windage is little, so the power of fan that is equipped with is also little.
Heat exchanger of the present utility model is to leak out in the pipe, walks cigarette outside the pipe, on the outer wall of cigarette ash attached to airduct, drops into steel ball or cobble from shoot door, or adopts chemical agent, is easy to remove cigarette ash.
Fig. 1 is the front view of hot-blast stove, and wherein heat exchanger and hot-blast stove part office is cutd open, and it is horizontally disposed to show airduct, and arrow has marked the stroke of cold wind (hot blast) and flue gas;
Fig. 2 is the right view of hot-blast stove;
Fig. 3 is the vertical view of hot-blast stove, and arrow is indicated the stroke of cold wind (hot blast) in the ventilation interlayer between body of heater and bonnet;
Fig. 4 is along Figure 1A-A cutaway view, shows the airduct arrangement mode of thorax structure and heat exchanger.
In conjunction with the accompanying drawings the optimum implementation of hot-blast stove is narrated.
Hot-blast stove mainly is made up of framework, body of heater, heat exchanger, hot blast chamber, bonnet and flue gas induced draught system.
By Fig. 1, the available square steel of framework (2) is welded into the plane frame, the plane frame at front, rear, left and right and top with bolt (as Fig. 2 (15)) just link and to be assembled into framework.Framework (2) is installed on the basis (1).The end face frame is provided with hanging bolt (9), in order to the suspention heat exchanger.Before the assembling of plane frame, can earlier bonnet be welded on the frame of plane, (3) of Fig. 1 are that bonnet plate, (7) are baffle plate, (6) are filter screen (being Fig. 2 (14)).On the bonnet plate, have the mouth corresponding with fire door (4) and ash-digging gate (5).
The part of cutting open at Fig. 1 is a part and the hot blast chamber of heat exchanger, airduct is horizontally disposed in the heat exchanger part, establishes three road vertical partition plates (8), and vertical partition plate is interlaced arrangement up and down, spacing between the vertical partition plate is gradually little with the outflow of flue gas, makes flue gas four backhauls wash away the airduct of heat exchanger.
Fig. 4 is along Figure 1A-A cutaway view, and its upper body is a heat exchanger, and lower body is a body of heater.Body of heater is formed by body of heater steel plate (17) seam, the lower disposed of (20) fire grate (16) in the combustion chamber, and in a week of body of heater steel plate inwall, building has refractory lining (18), there is colored hole crown (21) on top in the combustion chamber with the refractory material block, and the top of flower hole crown is secondary furnace (22).One week of the outside at the body of heater steel plate is welded with fin (19), is welded with arc telescopic joint (23) in one week of upper edge of body of heater steel plate.
The heat exchanger part is made up of the thick airduct (25) of Fig. 4, thin airduct (27), horizontal baffle (26), precursor plate (31), back body plate (28), first member plate (29), right end plate (Fig. 2 (13)), vertical partition plate (Fig. 1 (8)).Forebody-afterbody plate, left and right sides end plate and upper plate are to be welded into casing with steel plate.Thick airduct is two rows in the bottom, and thin airduct passes left and right sides end plate and middle vertical partition plate top number row.Extra heavy pipe to go up between row's tube and tube most be that (Fig. 4 (26) makes flue gas enter heat exchanger from opening part to horizontal baffle with a steel plate seam part.One week of lower edge at heat exchanger is welded with the steel plate that connects with body of heater, and ((24) of Fig. 4 connect with the telescopic joint (23) of body of heater by bolt.Have shoot door (Fig. 3 (32)) on upper plate, the precursor plate has ash-digging gate (Fig. 1 (5)).
Hot blast chamber (Fig. 1 (10)) is the rectangular box body that is welded into steel plate, is installed in the left half of hot-blast stove.The hot blast chamber give a dinner for a visitor from afar the tube ((33) of Fig. 3 and a blower fan (34).
The flue gas induced draught system is made up of smoke pipe (Fig. 3 (35)), smoke induced draught fan (36) and chimney (Fig. 2 (12)) and support (11).
Claims (4)
1, hot-blast stove mainly is made of parts such as framework, body of heater, heat exchanger, hot blast chamber and bonnets, it is characterized in that body of heater is following, heat exchanger is last, link by telescopic joint between body of heater and the heat exchanger, body of heater is sitting on the basis, heat exchanger is suspended on the framework, and a forward and backward and side of advancing cold wind of body of heater and heat exchanger is covered with bonnet.
2, hot-blast stove according to claim 1 is characterized in that said body of heater, and the furnace body plate outer periphery is welded with fin, the bottom is the combustion chamber in the burner hearth, top is secondary furnace, at the right inboard refractory lining of building of furnace body plate that burns the chamber, builds flower hole crown between combustion chamber and secondary furnace.
3, hot-blast stove according to claim 1, it is characterized in that said heat exchanger, the airduct level error is arranged and is put, and airduct has extra heavy pipe and tubule, and thick airduct is arranged in the bottom, thin airduct is arranged in top, leak out in the pipe, walk cigarette outside the pipe, heat exchanger also is provided with horizontal baffle and the vertical partition plate that makes the many backhauls of flue gas wash away airduct, on heat exchanger, have the shoot door and the ash-digging gate that are easy to ash disposal.
4, hot-blast stove according to claim 1 is characterized in that the bonnet plate and the baffle plate of said bonnet, and forms the ventilation interlayer between the body of heater that the uncovered setting and the air outlet of baffle plate are the diagonal angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220465 CN2075764U (en) | 1989-12-01 | 1989-12-01 | Warm air stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220465 CN2075764U (en) | 1989-12-01 | 1989-12-01 | Warm air stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2075764U true CN2075764U (en) | 1991-04-24 |
Family
ID=4875135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89220465 Withdrawn CN2075764U (en) | 1989-12-01 | 1989-12-01 | Warm air stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2075764U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261739A (en) * | 2011-06-20 | 2011-11-30 | 上海昌浩机电有限公司 | Biomass energy hot blast stove |
| CN103088744A (en) * | 2013-03-01 | 2013-05-08 | 长治县玉通机械设备有限公司 | Hot-blast stove |
| CN104566957A (en) * | 2014-12-30 | 2015-04-29 | 南京宜热纵联节能科技有限公司 | System device for supplying high-temperature clean hot air |
| CN104964441A (en) * | 2015-07-14 | 2015-10-07 | 安徽辰瑞达农业设备有限公司 | Hot air furnace |
-
1989
- 1989-12-01 CN CN 89220465 patent/CN2075764U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261739A (en) * | 2011-06-20 | 2011-11-30 | 上海昌浩机电有限公司 | Biomass energy hot blast stove |
| CN102261739B (en) * | 2011-06-20 | 2015-05-20 | 上海昌浩机电有限公司 | Biomass energy hot blast stove |
| CN103088744A (en) * | 2013-03-01 | 2013-05-08 | 长治县玉通机械设备有限公司 | Hot-blast stove |
| CN104566957A (en) * | 2014-12-30 | 2015-04-29 | 南京宜热纵联节能科技有限公司 | System device for supplying high-temperature clean hot air |
| CN104566957B (en) * | 2014-12-30 | 2017-03-29 | 南京宜热纵联节能科技有限公司 | A kind of system and device that high temperature cleaning hot blast is provided |
| CN104964441A (en) * | 2015-07-14 | 2015-10-07 | 安徽辰瑞达农业设备有限公司 | Hot air furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |