CN207094666U - A kind of improved multitube radiating stove - Google Patents

Abstract

The utility model discloses a kind of improved multitube radiating stove, install down the square tube communicated, smoke exhaust pipe is installed in one jiao of the body of heater away from burner hearth, the often row square tube of close smoke exhaust pipe is staggered with adjacent row, space of the staggered region between the square tube of burner hearth sets hanging plate, and hanging plate is connected in square tube by the hook in link thereon, square tube.Hanging plate does not cover space between whole square tube, still leave space in part on hanging plate, interspace and install flashboard, flashboard is fixed on bull stick, bull stick sequentially passes through peripheral pipe, square tube, and 360 degree rotate in the smoke seal axle sleeve that bull stick can be set in perforation, and flashboard is also with bar rotation, gap sets deep bead between several square tubes without hanging plate, and deep bead blocks the top part in gap.Beneficial effect is：Return air filter flue dust efficiency improves.Flashboard aperture size is adjustable, and ignition phase is easier to light a fire.Volume is reduced, and firepower is concentrated, and when burning long firewood, the thermal efficiency significantly improves.

Description

A kind of improved multitube radiating stove

Technical field

The utility model belongs to civilian burning coal, log warming ＆ cooking stove, is related to a kind of improved multitube radiating stove.

Background technology

Utility model patent ZL2016206799737, multitube high-efficiency radiation furnace, have and save fuel, radiating heating-surface The advantages of product is big, flue dust is few, but still suffer from the problem of small room volume is big, and outward appearance is single, and return air filter flue dust need to improve.

Utility model content

The purpose of this utility model is to provide a kind of more efficient energy-saving, pollutes few improved multitube radiating stove.

The technical solution adopted in the utility model is：A kind of improved multitube radiating stove, original box body is removed, box The space that body is vacated all is mounted to the square tube communicated up and down, and smoke exhaust pipe is installed in one jiao of the body of heater away from burner hearth, and square tube has eight rows, The often row square tube of close smoke exhaust pipe is staggered, so staggered just to improve return air filter flue dust efficiency, mistake with adjacent row Begin to rehearse space of the region between the square tube of burner hearth of row sets hanging plate, and hanging plate is used to separate close to gap between the pipe of flue, Air-flow is allowed to walk the square tube gap away from smoke exhaust pipe, to improve filtering level, hanging plate is connected by the hook in link thereon, square tube Be connected in square tube, with deashing choose hook during the dust stratification of cleaning the inside and hook the link on hanging plate and choose, it is clear it is complete after hang up again.Hanging plate does not cover Cover space between whole square tube, space is still left in the part on hanging plate, interspaces and installs flashboard, and flashboard is fixed on bull stick, Bull stick sequentially passes through peripheral pipe, square tube, and 360 degree rotate in the smoke seal axle sleeve that bull stick can be set in perforation, and flashboard is also with bull stick Rotate, close space or open to adjust interspaced size, gap sets deep bead, deep bead between several square tubes of no hanging plate Block the top part in gap.

One cover plate of installation above body of heater, cover plate divide two parts, and a part is fixed, a part of movable, movable part In fire door one end, movable part is be hinged with fixed part, and movable part is supported when raising by strut.

The bottom of smoke exhaust pipe is opened and connects a vaporization water tank, and vaporization water water tank bottom connects metal hose, such as ripple Line pipe, the metal hose mouth of pipe are jumped a queue son, are usually filled in, are opened when discharging water.

The top horizontal for vaporizing water tank stretches out a tubule, and there is a downward delivery port tubule end, and delivery port is against ash box Top.Tubule use be vaporization water Water in Water Tank completely after water ash box is flowed to by tubule, see whether ash wet during daily ash discarding and just know Whether water tank will discharge water.

Comb radiating combustion chamber is set in burner hearth, the combustion chamber includes combustion chamber, furnace chamber, and the furnace chamber is the metal by communicating up and down Tubular is welded between managing two-by-two, forms circular radiating comb, metal tube hypomere is thick, upper, stage casing is narrowed, metal tube base opening air intake, Air-out suitable for reading, hypomere metal tube is connected, gone up each other, stage casing metal tube has gap each other, and metal tube top is sealed by top plate, Top plate is integrally annular in shape, and a metal tube top part passes through from top plate, top plate inner ring edge connection interior annular groove, in interior annular groove Being filled with loose sandy soil or asbestos and tightly being covered tightly for upper lid underthrust prevents flue dust from shedding, the lower chimb of top plate outer ring edge connection, body of heater On be fixed with outer annular groove, loose sandy soil are filled with outer annular groove tightly being covered tightly for lower chimb underthrust prevents flue dust from shedding；Burning Room tightly welds together with furnace cavity bottom ring-type interior edge, and metal tube surrounds combustion chamber, and the lower nozzle of metal tube is in chamber wall Outside, sidewall of combustion chamber is provided with lighting-up tuyere, and combustion chamber bottom is provided with fire grate, and combustion chamber bottom is that ash box lays room, combustion chamber and ash box It is to be flexibly connected to lay room, and active connection place is by fire resisting washer sealing；Combustion chamber is provided with draw ring or handle, passes through draw ring or handle Combustion chamber is proposed or transferred to stove.

Further, interior charging bucket is provided with furnace chamber, there is interval, the top outer of interior charging bucket between interior charging bucket and furnace chamber There is extension side, work is hung in the extension stake set on furnace chamber metal tube, and interior charging bucket is less than 5 centimetres of top plate when being linked into.On interior charging bucket Mouth is provided with inner cap, and charging bonnet inward upper cover has vaporization by fuel.Interior charging bucket lower periphery is provided with firestopping ring, firestopping ring position In in the altitude range on metal tube, residing for stage casing.

Further, furnace chamber is provided with senior executive's charging bucket, and senior executive's charging bucket periphery is fixed with chimb, chimb insertion interior annular groove Loose sandy soil in, senior executive's charging bucket lower periphery is provided with firestopping ring, and firestopping ring is located on metal tube, the height model residing for stage casing In enclosing, part of senior executive's charging bucket more than chimb higher than furnace chamber most on along a segment length, senior executive's charging bucket is suitable for reading to set annular groove, ring Groove adds chimb lid.

Further, it is provided with furnace chamber and fires bucket, fire a barrel top outer You Gua sides, living be hung in annular comb combustion chamber is hung Stake, fires bung and is less than 5 centimetres of top plate, fire a barrel bottom and be fixed with fire trapping ring, fire trapping ring is located at metal tube hypomere mouth when being linked into.

Preferably：Metal tube is overall continuous square tube, and square tube base opening is constant, in, epimere gradually narrow, it is suitable for reading to have one Interior re-entrant angle, the angle between two opposite side for facing side and interior re-entrant angle of interior re-entrant angle are respectively less than 90 degree, under intersegmental wide seam welded with shrouding Connect.

Preferably：Metal tube is overall continuous pipe, and pipe base opening is constant, in, epimere gradually narrow, it is suitable for reading to be in The figure of eight.

The beneficial effects of the utility model are：Return air filter flue dust efficiency improves.Flashboard aperture size is adjustable, and ignition phase is more Easily igniting.The outer surface cover metal tube of combustion chamber, thermal current rise from metal tube speed, and comb concentrates on the height of anger, are formed on firing point and dissipated The hot big radiating of area increases.Volume is reduced, and firepower is concentrated, and when burning long firewood, the thermal efficiency significantly improves.

Brief description of the drawings

Fig. 1 is schematic top plan view of the present utility model；

Fig. 2 is the structural representation for having added cover plate, water tank；

Fig. 3 is the structural representation that cover plate rises；

Fig. 4 is hanging plate, flashboard state change schematic diagram；

Fig. 5 is the utility model structural scheme of mechanism；

Fig. 6 is the structural representation of interior charging bucket；

Fig. 7 is the fired state schematic diagram that furnace chamber is put into interior charging bucket；

Fig. 8 is the structural representation of senior executive's charging bucket；

Fig. 9 is the structural representation for firing bucket；

Figure 10 is that furnace chamber is put into the fired state schematic diagram for firing bucket；

Figure 11 is the structural representation of square tube type metal tube；

Figure 12 is the structural representation of circular pipe type metal tube；

Figure 13 is square tube type metal tube base opening schematic diagram.

Embodiment

As illustrated, a kind of improved multitube radiating stove, original box body is removed, the space that box body is vacated all is installed Into the square tube 1 communicated up and down, smoke exhaust pipe 2 is installed in one jiao of the body of heater away from burner hearth, and square tube 1 has 8 rows, close to the every of smoke exhaust pipe 2 It is staggered that square tube 1, which is arranged, with adjacent row, and so staggered just to improve return air filter flue dust efficiency, staggered region is leaned on Space between the square tube 1 of nearly burner hearth sets hanging plate 3, and hanging plate 3 is used to separate close to gap between the pipe of flue, allows air-flow to walk remote The square tube gap of smoke exhaust pipe, to improve filtering level, hanging plate 3 is connected to square tube 1 by the hook in link thereon, square tube On, with deashing choose hook during the dust stratification of cleaning the inside and hook the link on hanging plate and choose, it is clear it is complete after hang up again.Hanging plate 3 does not cover entirely Space between square tube, the part on hanging plate 3 still leave space, interspace and install flashboard 4, and flashboard 4 is fixed on bull stick 5, turn Bar 5 sequentially passes through peripheral pipe, square tube 1, bull stick 5 can 360 degree of rotations in the smoke seal axle sleeve in perforation, flashboard 4 is also with bull stick 5 Rotate, close space or open to adjust interspaced size.Gap is kept out the wind with 9 or 10 centimetres wide between several pipes without hanging plate Plate blocks the top part in gap, for keeping off back, thermal current is forced down, beneficial to return air.Flashboard 4 is return air pattern when closing, and is opened It is half return air pattern when, opens on fire fast during igniting, burning interior flame, which, is shut off flashboard 4.Flashboard 4 is closed【Stove Interior return air pattern】, because the very little closed, air inlet is few, and flue outlet is also few, it is aerobic be due to less gasification that return air section stays be present can Burning fume is combustion-supporting.Flashboard 4 and smoke exhaust pipe brake application are closed, appropriate to open lock under smoke exhaust pipe, thermal current is more to be run on top, multiple Pipe gear touches cooling, and along pipe next time, lower stream of airflow rises firepower by combustion chamber and constantly inhales burning flue dust air-flow.

Smoke exhaust pipe 2 is placed on angle, hot cigarette is turned around by hanging plate 3 and is entered back into smoke exhaust pipe 2, and sufficiently square tube is heated. The space that box body is vacated all is mounted to the square tube 1 communicated up and down, and this reduces overall weight, more compact structure.

One cover plate 6 of installation above body of heater, cover plate 6 divide two parts, and a part is fixed, a part of movable, movable portion Divide in fire door one end, movable part is be hinged with fixed part, and movable part is supported when raising by strut 7.Load onto cover plate Make outward appearance increase attractive in appearance, radiating airflow is not flung on top, there is gradient movable part after lifting, hot gas is largely from cover plate Simultaneously reflect, can orient and warm oneself by a fire towards the people of cover plate.Movable part is folded back upon, and fire door is not just delayed after coming on smoke exhaust pipe Put pot and heat up water and cook.

The bottom of smoke exhaust pipe 2 is opened and connects a vaporization water tank 8, and vaporization water tank 8 bottom connects metal hose 9, than Such as bellows, flexible pipe is conveniently discharged water, and the mouth of pipe of metal hose 9 is jumped a queue son, and plug is opened when discharging water, usually fills in plug.Multitube dissipates Hot stove radiating return air effect makes more than one meter of smoke exhaust pipe often hang with the vaporization globule, and dirt can be reduced with lower pollutant when the globule is fallen Dye.Pollutant is mixed in water, is discharged to what air was arranged with regard to less, reducing to the PM2.5 of air.

The top horizontal for vaporizing water tank 8 stretches out a tubule 10, and there is a downward delivery port end of tubule 10, and delivery port is opposite The top of ash box 11.The draining at regular intervals of water tank 8 is vaporized, draining is to arrange once for several days, has just forgotten draining sometimes, has caused vapour Changing the water of water tank 8 expires, and the top horizontal of water tank 8 is vaporized for this and stretches out a tubule 10, the outlet of tubule 10 is held down against in ash box 11 Side, vaporization water, which has expired, in case just flows in ash box 11, because wanting within one day ash discarding one or two times, it is seen that ash box it is grey wet, be known that The water of vaporization water tank 8 has been expired, it is necessary to draining.

Combustion chamber is set in burner hearth, the combustion chamber includes combustion chamber 12, furnace chamber 13, and the furnace chamber 13 is the metal tube by communicating up and down 14 two-by-two between be welded into tubular, form circular radiating comb, the hypomere of metal tube 14 is thick, upper, stage casing is narrowed, and the base opening of metal tube 14 is entered Wind, air-out suitable for reading（Metal tube heating more senior executive's interior air-flow is faster, therefore the resistance to burning of radiating tube is durable）, hypomere metal tube 14 is mutual Connection, upper, stage casing metal tube 14 have gap each other, and the top of metal tube 14 is sealed by top plate 15, and top plate 15 is overall annular in shape, gold The category top part of pipe 14 is passed through from top plate 15, the inner ring edge of top plate 15 connection interior annular groove 16, and pine is filled with interior annular groove 16 Loose sand soil or asbestos tightly cover tightly for the upper underthrust of lid 17 prevents flue dust from shedding, the lower chimb 18 of the outer ring edge of top plate 15 connection, body of heater On be fixed with outer annular groove 19, loose sandy soil are filled with outer annular groove 19 tightly being covered tightly for the lower underthrust of chimb 18 prevents flue dust from dissipating Go out；Combustion chamber 12 welds together with the bottom of furnace chamber 13, and metal tube 14 surrounds combustion chamber 12, and the lower nozzle of metal tube 14 is burning Outside the wall of room 12, the side wall of combustion chamber 12 is provided with lighting-up tuyere 20, and the bottom of combustion chamber 12 is provided with fire grate, and the bottom of combustion chamber 12 is that ash box lays room 21, it is to be flexibly connected that room 21 is laid in combustion chamber 12 with ash box, and active connection place is by fire resisting washer sealing（Not shown in figure）；Combustion chamber Draw ring or handle are provided with, combustion chamber is proposed by draw ring or handle, with the dust stratification in deashing hook cleaning stove after proposition, allows dust stratification Ash box is drained to from fire grate, combustion chamber is returned in stove again after deashing is complete.

The combustion chamber heats in heat caused by fuel combustion to metal tube 14, the base opening air inlet of metal tube 14, by gold Category pipe 14 is heated to form hot-air, and hot-air is suitable for reading out from metal tube 3, and such heat enters around stove, and house is heated. Upper, stage casing metal tube narrow and two-by-two between there is gap to be in order to which flame all heats to the whole periphery of metal tube, heating effect is good.

Further, interior charging bucket 22 is provided with furnace chamber 13, there is interval, interior charging bucket 22 between interior charging bucket 22 and furnace chamber 13 Top outer You Gua sides, work hang in the extension stake set on furnace chamber metal tube, interior charging bucket 22 is less than 5 lis of top plate when being linked into Rice, interior charging bucket 22 is suitable for reading to be provided with inner cap 23, and charging bonnet inward upper cover 23 allows fuel to have vaporization.Outside the interior bottom of charging bucket 22 Enclose and be provided with firestopping ring 24, firestopping ring 24 is located on metal tube 14, in the altitude range residing for stage casing.Firestopping ring effect is to allow firepower Concentrate and burn metal tube.

Further, furnace chamber 13 is provided with senior executive's charging bucket 25, and the periphery of senior executive's charging bucket 25 is fixed with chimb, in chimb insertion In the loose sandy soil of annular groove 16, the lower periphery of senior executive's charging bucket 25 is provided with firestopping ring 24, firestopping ring 24 is located on metal tube 14, In altitude range residing for stage casing, part of the senior executive's charging bucket 25 more than chimb higher than furnace chamber 13 most on along a segment length, it is high Pipe charging bucket 25 is suitable for reading to set annular groove, and annular groove adds chimb lid.Firestopping ring is also to allow firepower to concentrate to burn metal tube.Senior executive's charging bucket 25 1 Secondary charging is more, and the raised area effect is that fuel, the burning times such as more lengthening firewoods are longer.

Senior executive's charging bucket 22 and interior charging bucket 25 are provided to allow flare toward the surrounding of metal tube 14 to assemble, and more flames add Thermometal pipe 14.Storage fuel can be added to reduce charging frequency in bucket.

Further, it is provided with furnace chamber 13 and fires bucket 26, fire the top outer You Gua sides of bucket 26, work is hung on annular comb stove In-core hangs stake, and bung is fired when being linked into and is less than 5 centimetres of top plate, the bottom of bucket 26 is fired and is fixed with fire trapping ring 27, fire trapping ring 27 is located at In altitude range residing for the hypomere of metal tube 14.

It is when heating up water, cooking to fire the effect of bucket 26, allows flare directly to rise to the bottom of a pan rather than dissipate to outside combustion chamber, does not allow scattered Hot stove is only limitted to radiating and warmed oneself by a fire a kind of function.

Preferably：Metal tube 14 is overall continuous square tube, and square tube base opening is constant, in, epimere gradually narrow, it is suitable for reading to have Re-entrant angle in one, the angle between two opposite side for facing side and interior re-entrant angle of interior re-entrant angle are respectively less than 90 degree, under intersegmental wide seam shrouding 28 welding.

Preferably：Metal tube 14 is overall continuous pipe, and pipe base opening is constant, in, epimere gradually narrow, it is suitable for reading to be in The figure of eight.

Overall continuous benefit is that processing is fast, middle solderless seam, more firm and durable.Metal tube lower periphery is fixed with flat Circle, equal circle interior edge and welded with comb periphery base opening edge, while weld angle seam resistance cigarette between tight two pipe, Ping Quan is close at edge furnace bottom obturator Hole flat edge.The flat effect enclosed is smooth furnace bottom edge sealing flue dust, the flat circle of flat circle can also be changed and be welded into vertical circle into convex edge circle, stove Back welding has annular groove corresponding with annulus, preferably blocks flue dust.The ring-type radiating comb that metal tube connects into has two circles, inner lane Peripheral clearance adds a circle to form bicyclic radiating core again.Body of heater increases accordingly, thus increases area of heat-supply service.

Concrete principle, the combustion heat air-flow of combustion chamber burning pass-out are sprayed furnace roof bell and are obstructed, and then thermal current is along body of heater Radiating tube and passage deep bead next time, keep off back flue gas and meet flame second-time burning, while the thermal current to burn will also be by staying out Shelves are stitched between several pipes to be sprayed in combustion chamber again along bottom next time is managed by multiple rows of tactile cooling of radiating tube gear in space into increase-volume space Firepower bottom airflow is sucked back the gasification combustible fumes reburned and burnt incompletely.

During the continuous burning fuel of combustion chamber radiating core, contain combustible gas in the flue dust of incomplete combustion, it is being set in combustion chamber plus First generation part gasification cigarette mixes combustible gas before added fuel fires under high temperature action in charging basket, the cigarette when rising ejection combustion chamber If road is located in the above will to be nearby expelled directly out flue, referred to as " straight-through air-out ".This time improve is to turn into multi-tube radiation to gasify Air return stove, it is characterized in that flue, which is located at increase-volume space, goes on one jiao of the furnace wall in that face, leads to based on the bottom sluice gate set by furnace bottom Gas port, so the not complete hot gas that burns, which rises to enter when being kept off back, increases the process that space decompression caches cooling backflows of melting Reduction discharge flue dust 90 percent is compared in referred to as gasification backflow, referred to as " gasification return air ", this gasification return air with straight-through air-out More than.

Claims (10)

1. a kind of improved multitube radiating stove, it is characterized in that：Original box body there is into removal, the space that box body is vacated all is installed Into the square tube communicated up and down（1）, smoke exhaust pipe（2）It is installed in one jiao of the body of heater away from burner hearth, square tube（1）There are 8 rows, close to smoke exhaust pipe （2）Often row's square tube（1）It is square tube of staggered, the staggered region close to burner hearth with adjacent row（1）Between space Hanging plate is set（3）, hanging plate（3）Square tube is connected to by the hook in link thereon, square tube（1）On, hanging plate（3）Do not cover whole Space between individual square tube, hanging plate（3）On part still leave space, interspace and install flashboard（4）, flashboard（4）It is fixed on and turns Bar（5）On, bull stick（5）Sequentially pass through peripheral pipe, square tube（1）, bull stick（5）360 degree in the smoke seal axle sleeve that can be set in perforation Rotate, flashboard（4）Also with bull stick（5）Rotate, the interspaced size of regulation, gap, which is set, between several square tubes of no hanging plate keeps out the wind Plate, deep bead block the top part in gap.

2. a kind of improved multitube radiating stove according to claim 1, it is characterized in that：One cover plate of installation above body of heater （6）, cover plate（6）Point two parts, a part is fixed, a part of movable, movable part in fire door one end, movable part with Fixed part is be hinged, by strut when movable part raises（7）Support.

3. a kind of improved multitube radiating stove according to claim 1, it is characterized in that：Smoke exhaust pipe（2）Bottom open And connect a vaporization water tank（8）, vaporize water tank（8）Bottom connects metal hose（9）, metal hose（9）The mouth of pipe is jumped a queue son.

4. a kind of improved multitube radiating stove according to claim 3, it is characterized in that：Vaporize water tank（8）Top It is flattened go out a tubule（10）, tubule（10）There is a downward delivery port end, and delivery port is against ash box（11）Top.

5. a kind of improved multitube radiating stove according to claim 1, it is characterized in that：Comb radiating stove is set in burner hearth Core, the combustion chamber include combustion chamber（12）, furnace chamber（13）, the furnace chamber（13）It is the metal tube by communicating up and down（14）Welded between two-by-two Tubular is connected into, forms circular radiating comb, metal tube（14）Hypomere is thick, upper, stage casing is narrowed, metal tube（14）Base opening air intake, on Mouth air-out, hypomere metal tube（14）Connection, upper, stage casing metal tube each other（14）There are gap, metal tube each other（14）Top By top plate（15）Sealing, top plate（15）It is overall annular in shape, metal tube（14）A top part is from top plate（15）Pass through, top plate（15） Inner ring edge connects interior annular groove（16）, interior annular groove（16）Inside it is filled with loose sandy soil and supplies upper lid（17）Underthrust tightly covers tightly, top Plate（15）The lower chimb of outer ring edge connection（18）, outer annular groove is fixed with body of heater（19）, outer annular groove（19）Inside it is filled with loose Sandy soil supply lower chimb（18）Underthrust tightly covers tightly；Combustion chamber（12）With furnace chamber（13）Bottom annular interior edge tightly welds together, Metal tube（14）Around combustion chamber（12）, metal tube（14）Lower nozzle in combustion chamber（12）Outside wall, combustion chamber（12）Side wall is set There is lighting-up tuyere（20）, combustion chamber（12）Bottom is provided with fire grate, combustion chamber（12）Bottom is that ash box lays room（21）, combustion chamber（12）With Ash box lays room（21）It is to be flexibly connected, active connection place is by fire resisting washer sealing；Combustion chamber is provided with draw ring or handle, passes through drawing Ring or handle propose combustion chamber or transfer to stove.

6. a kind of improved multitube radiating stove according to claim 5, it is characterized in that：Furnace chamber（13）It is interior to be provided with interior charging Bucket（22）, interior charging bucket（22）With furnace chamber（13）Between have interval, interior charging bucket（22）Top outer You Gua sides, work hang over furnace chamber In the extension stake set on metal tube, interior charging bucket when being linked into（22）Less than 5 centimetres of top plate, interior charging bucket（22）It is suitable for reading to be provided with inner cap （23）, interior charging bucket（22）Lower periphery is provided with firestopping ring（24）, firestopping ring（24）Positioned at metal tube（14）Residing for upper, stage casing In altitude range.

7. a kind of improved multitube radiating stove according to claim 5, it is characterized in that：Furnace chamber（13）Fed provided with senior executive Bucket（25）, senior executive's charging bucket（25）Periphery is fixed with chimb, chimb insertion interior annular groove（16）Loose sandy soil in, senior executive charging Bucket（25）Lower periphery is provided with firestopping ring（24）, firestopping ring（24）Positioned at metal tube（14）In altitude range residing for upper, stage casing, Senior executive's charging bucket（25）Part more than chimb is higher than furnace chamber（13）Along a segment length, senior executive's charging bucket on most（25）It is suitable for reading to set Annular groove, annular groove add chimb lid.

8. a kind of improved multitube radiating stove according to claim 5, it is characterized in that：Furnace chamber（13）Interior be provided with fires bucket （26）, fire bucket（26）Top outer You Gua sides, living be hung in annular comb combustion chamber hang stake, bung are fired when being linked into and is less than top plate 5 centimetres, fire bucket（26）Bottom is fixed with fire trapping ring（27）, fire trapping ring（27）Positioned at metal tube（14）Height model residing for hypomere In enclosing.

9. a kind of improved multitube radiating stove according to claim 5, it is characterized in that：Metal tube（14）It is overall continuous Square tube, square tube base opening is constant, in, epimere gradually narrow, suitable for reading have a re-entrant angle in one, and two of interior re-entrant angle face side and interior re-entrant angle Angle between opposite side is respectively less than 90 degree, under intersegmental wide seam shrouding（28）Welding.

10. a kind of improved multitube radiating stove according to claim 5, it is characterized in that：Metal tube（14）It is overall connect Continuous pipe, pipe base opening is constant, in, epimere gradually narrow, suitable for reading is in the figure of eight.