CN100451477C - Two-purpose pier boiler - Google Patents
Two-purpose pier boiler Download PDFInfo
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- CN100451477C CN100451477C CNB2007100959367A CN200710095936A CN100451477C CN 100451477 C CN100451477 C CN 100451477C CN B2007100959367 A CNB2007100959367 A CN B2007100959367A CN 200710095936 A CN200710095936 A CN 200710095936A CN 100451477 C CN100451477 C CN 100451477C
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Abstract
The invention relates to a kind of boiler, especially a kind of squatting double-duty boiler which is used to cook, boil water and supply heating, the double-duty boiler consists of furnace shaft, firebox in the furnace shaft and decalescence equipment, firebox consists of fuel blast chamber, volatile blast chamber and volatile annular combustor, decalescence equipment is made up of two floors of heat pipes which encircles outside of the firebox, heat pipes connects with each other through annular jackets above and below the furnace shaft, the outlet is set up on the top annular jacket, the inlet is set up on the lower annular jacket, annular thermal convection switch room is between two floors of heat pipes, annular floss hole is between annular thermal convection switch room and firebox, the lower ends of annular thermal convection switch room connects with funnel outside the furnace shaft; The invention has a high thermal efficiency, discharges few injurants, adopts many different kinds of fuel to heat, releases contaminant simply and has no danger of blast, it has a long life and a simple structure, moreover, it is convenient to be used.
Description
Technical field
The present invention relates to a kind of crouching formula boiler, particularly can cook, heat up water and provide the two-purpose pier boiler of heating.
Background technology
At present the development trend of urban residents' warming is to be the independent heating installation of unit with the family, and (being native heating installation) requires boiler under the prerequisite that satisfies heating, purposes such as also needs to satisfy that family cooks, heats up water.Conventional domestic boiler for dual purpose ubiquity inevitable problem to be had: 1. the thermal efficiency is low, generally at 30%-40%; 2. it is very big to contain harmful gas emissions such as energy gas, greenhouse gases, black smoke; 3. the cigarette ash dust particle increases along with the increase of exhaust gas temperature; 4. because the heating system exchange media directly uses unboiled water, water mineral (incrustation scale) problem of condensing is serious, and boiler uses the thermal efficiency bigger with initial thermal efficiency difference, thereby Acceptable life is very short; 5. because peasant user is few to the scope of one's knowledge of using boiler, the coefficient safe in utilization of boiler is low; 6. the sulfide in the fuel is serious to boiler corrosion, is to reduce boiler another problem in reliable service life; These problems at conventional boiler; The present invention solves the problem that above-mentioned conventional boiler exists substantially; The inventor has applied for the patent of invention of a key name for " crouching formula boiler ", the patent No. 02156251.2 on December 11st, 2003.This boiler integrates the advantage of vertical boiler and horizontal boiler, and it is low to have an exhaust gas temperature, and heating surface area is big, characteristics such as thermal efficiency height, volume are little, but this boiler is strict to the fugitive constituent in the coal, belongs to the first generation product of crouching formula boiler.
Summary of the invention
The present invention has solved all problems that traditional boiler for dual purpose exists basically, be a kind of thermal efficiency height, smoke discharge amount few, can adopt pluralities of fuel heat, can the physics scale removal, the two-purpose pier boiler of no explosion danger, long service life.
For achieving the above object, technical scheme of the present invention is: a kind of two-purpose pier boiler, comprise burner hearth and heat sink in body of heater, the body of heater, it is characterized in that burner hearth is made up of the fugitive constituent combustion chamber on fuel combustion chamber, fuel combustion chamber top and the fugitive constituent toroidal combustion chamber on top, fugitive constituent combustion chamber, fugitive constituent toroidal combustion chamber top is equipped with can upper and lower mobile cone, has the cooking stove mouth on the axis of cone; Heat sink is by being looped around fuel combustion chamber, the fugitive constituent combustion chamber, the two-layer vertical installation of fugitive constituent toroidal combustion chamber and cone periphery and interior endothermic tube and the outer endothermic tube composition concentric with burner hearth, interior endothermic tube top is communicated with the interior annular upper water sleeve of upper of furnace body, interior endothermic tube bottom is communicated with the interior annular lower water jacket of body of heater bottom, outer endothermic tube top is communicated with the outer ring upper water sleeve of upper of furnace body, outer endothermic tube bottom is communicated with the outer ring lower water jacket of body of heater bottom, interior annular upper water sleeve is communicated with by first communicating pipe with the outer ring upper water sleeve, interior annular lower water jacket is communicated with by second communicating pipe with the outer ring lower water jacket, on the outer ring upper water sleeve, delivery port is installed, on the outer ring lower water jacket, water inlet is installed; Interior endothermic tube and outer endothermic tube be embedded in respectively by flame-proof sealing material make within the walls airtight; Interior endothermic tube and outside the cellular convection heat-absorbing chamber inside upper part that forms between the endothermic tube have annular floss hole, and corresponding connection with the fugitive constituent toroidal combustion chamber, have floss hole in cellular convection heat-absorbing chamber outer lower portion and throat corresponding position, and be communicated with throat; Interior endothermic tube that exposes in annular floss hole and the outer endothermic tube that exposes in second floss hole that lower end, the cellular convection heat-absorbing chamber outside is communicated with throat are with protective casing respectively; Between interior endothermic tube and fuel combustion chamber, have vertical air preheating chamber, between fuel combustion chamber and the fugitive constituent combustion chamber, have the combustion air air inlet that is communicated with air preheating chamber between fugitive constituent combustion chamber and the fugitive constituent toroidal combustion chamber; Cellular convection heat-absorbing chamber upper end seals by flame-proof sealing material with the atmosphere place of communicating, and cellular convection heat-absorbing chamber lower end is by the shoot door sealing with the atmosphere place of communicating.
The endothermic tube top and bottom are stretched out described interior annular upper water sleeve and interior annular lower water jacket respectively in described, and the top and bottom of described outer endothermic tube are stretched out described outer ring upper water sleeve and outer ring lower water jacket respectively; All have the hole on the outer endothermic tube in interior endothermic tube in described in the annular upper and lower water jacket and the upper and lower water jacket of outer ring; The interior endothermic tube and the outer endothermic tube upper and lower end mouth of pipe seal it by sealing plug respectively.
Above-mentioned fuel combustion chamber bottom is equipped with fire grate and burning velocity control gate.
Above-mentioned fuel combustion chamber interior is equipped with burner noz(zle).
Above-mentioned throat is in body of heater lower end one side, and throat is provided with two control gates, and one is the exhaust gas temperature control gate, is installed on the passage of second floss hole and throat; Another is the flue gas flow adjustment doors, is installed in the lower end of throat.
Above-mentioned fire grate by stationary furnace tooth, travelling oven tooth, fixedly the travelling oven tooth axle, ash digging rod and be installed in the body of heater outside ash digging rod lockset corresponding and form with ash digging rod.
Above-mentioned burning velocity control gate is by deep bead, and the deep bead fixed bar is formed.
Fill out in the above-mentioned burner hearth and put cobblestone.
Characteristics of the present invention are:
1. thermal efficiency height: the heat exchange area of this boiler is very big, the whole boiler water jacket gross area be heating surface area more than 90%, owing in body of heater, designed stratospheric heat radiation switch room, make heat sink have good absorption to low temperature heat energy, therefore reduced exhaust gas temperature significantly, the thermal efficiency of this two-purpose pier boiler is effectively improved.
2. do not have black smoke discharging: since in body of heater for the fuel fugitive constituent has designed second-time burning and three burning situations, make the fugitive constituent burn-off rate in the fuel very high, flue gas concentration reduces significantly.
3. cigarette ash dust collection function: two-purpose pier boiler can be collected the cigarette ash dust in the flue gas on year-on-year basis, and it is also very convenient to remove the flue dust black dirt.
4. strong to fuel tolerance: the technology of the present invention has been considered the diversity of peasant user on fuel, and the spy has structurally designed and used solid fuel, gaseous fuel; Need not do any change to boiler, just can use solid fuel, as coal, various straw, cow dung, timber; Gaseous fuel: as coal gas, natural gas, liquefied gas, biogas, Device in Gas etc., and can be because of the Different Effects boiler thermal output of fuel.
5. easy to use: conversion is warmed oneself, cooked, banks up a fire to two-purpose pier boiler conveniently, the conversion efficiency height of warming oneself, cook.
6. physical removal incrustation scale: this two-purpose pier boiler adopts physics scale removal design, and the user can oneself implement clean the boiler is not injured boiler easily.
7. security is fine: two-purpose pier boiler adopts pressure limit design, no explosion danger.
8. antiseptic property is good: all heating surface areas of two-purpose pier boiler are by medium heat conduction, directly do not contact with flame, and antiseptic property is solely good.
9. two-purpose pier boiler has bigger heat energy hysteresis release function, and stoking process and the process of banking up a fire are had certain compensate function.
10. parts are few, and are simple to operate.
Description of drawings
Accompanying drawing 1 is the structural representation of the embodiment of the invention 1;
Accompanying drawing 2 is the A-A cutaway view of accompanying drawing 1 of the present invention;
Accompanying drawing 3 is the B-B cutaway view of accompanying drawing 1 of the present invention;
Accompanying drawing 4 is the C-C cutaway view of accompanying drawing 1 of the present invention;
Accompanying drawing 5 is the D-D cutaway view of accompanying drawing 1 of the present invention;
Accompanying drawing 6 for the K of the real Fig. 1 of the present invention to partial enlarged drawing;
Accompanying drawing 7 is the structural representation of the embodiment of the invention 2.
The specific embodiment
Embodiment 1:
Shown in Fig. 1,2,3,4,5,6, burner hearth in the body of heater is made up of fuel combustion chamber 13, fugitive constituent combustion chamber 14 and fugitive constituent toroidal combustion chamber 23, cooking stove mouth 28 is arranged on the axis of cone 29, cone 29 can move up and down, cone 29 upper surfaces are range port 27 bottom surfaces, range port 27 is on the axis of body of heater upper surface 26, and tool is provided with for arrangement is blown; Heat sink in the body of heater is made up of the interior endothermic tube 6 and the outer endothermic tube 7 of the two-layer concentric vertical arrangement that is looped around burner hearth and cone periphery, and the two ends of interior endothermic tube 6 are communicated with interior annular upper water sleeve 1 and interior annular lower water jacket 12 respectively; The two ends of outer endothermic tube 7 are communicated with outer ring upper water sleeve 3 and outer ring lower water jacket 9 respectively, interior annular upper water sleeve 1 is communicated with by first tube connector 25 with outer ring upper water sleeve 3, interior annular lower water jacket 12 is communicated with by second tube connector 16 with outer ring lower water jacket 9, on annular upper water sleeve 3, delivery port 24 is installed, on annular lower water jacket 9, water inlet 17 is installed.The upper and lower side of interior endothermic tube 6 and outer endothermic tube 7 stretches out water jacket 1,3,12,9 respectively, interior endothermic tube 6 in the upper and lower water jacket 1,3,12,9 of inside and outside annular and outside all have hole 40 on the endothermic tube 7, interior endothermic tube 6 and outer endothermic tube 7 upper and lower ports all by sealing-plug 10 with its port sealing.When needing scale removal, the upper and lower port sealing-plug 10 of interior endothermic tube 6 and outer endothermic tube 7 is taken down, just can remove, sealing-plug 10 is installed got final product then managing interior incrustation scale.When the hypertonia in the endothermic tube, sealing-plug and endothermic tube break away from, and can effectively prevent the harm that the hypertonia in the endothermic tube causes.
Cellular convection heat-absorbing chamber 22 inside upper part that form between inside and outside endothermic tube 6,7 have and fugitive constituent toroidal combustion chamber 23 corresponding annular floss holes 4, annular floss hole 4 is communicated with fugitive constituent toroidal combustion chamber 23, has second floss hole 32 that is connected with throat 20 in lower end, cellular convection heat-absorbing chamber 22 outside and throat 20 corresponding positions; Interior endothermic tube 6 the exposed part by annular floss hole 4 and outside endothermic tube 7 be with protective casing 21 respectively at exposed part by second floss hole 32; the purpose that protective casing is installed is the service life of improving endothermic tube; prevent that corrosive gas in the flue gas is to the corrosion of endothermic tube; preventing simultaneously that coal tar in smoke from condensing in stops up floss hole on the endothermic tube, interior endothermic tube 6 and outer endothermic tube 7 remaining surface all are embedded in the flame-proof sealing material 8.Between endothermic tube 6 and solid fuel ignition chamber 13, have vertical air preheating chamber 15, between fuel combustion chamber 13 and fugitive constituent combustion chamber 14, have the combustion air air inlet 5 that is communicated with air preheating chamber 15 between fugitive constituent combustion chamber 14 and the fugitive constituent toroidal combustion chamber 23, at bottom of furnace body and cellular convection heat-absorbing chamber 22 corresponding positions shoot door 11 is installed, can regularly the dust in the annular heat convection current heat-absorbing chamber be cleared up by shoot door, and shoot door provides sealing function to cellular convection heat-absorbing chamber, and cellular convection heat-absorbing chamber 22 upper ends are by flame-proof sealing material 2 sealings.
In fuel combustion chamber 13 bottoms fire grate 34 is installed, fire grate 34 lower ends are equipped with burning velocity control gate 33; Between second floss hole 32 and throat 20, exhaust gas temperature control gate 19 is installed, flue gas flow adjustment doors 18 is installed in throat 20 lower ends.
This boiler is when using solid fuel burning, solid fuel carries out basic burning in fuel combustion chamber 13, contain in the combustion product gases and a large amount of, the fuel gas of complicated component, wherein most of fuel gas is the pyrolysis oxidization burning under the effect of environment, the fuel gas of difficult combustion belongs to the macromolecular structure form more, whole oxidizing fire process is continuous cracking, reform, continuous oxidizing fire, therefore need the time, the volume that fugitive constituent toroidal combustion chamber 23 increases suddenly, reduce flue gas stream flowing velocity rapidly, striven for the time for the fugitive constituent burning, gas fume after burning stream enters in the cellular convection switch room 22 by annular floss hole 4; Combustion heat energy is at first absorbed by flame- proof sealing material 8,2, and pass to heat pipe by flame- proof sealing material 8,2, the heat that interior endothermic tube 6 main absorption fuel combustion chambers 13, fugitive constituent combustion chamber 14 and fugitive constituent toroidal combustion chamber 23 directly transmit, outer heat pipe 7 main absorptions enter the low-temperature heat quantity of convective exchange chamber, and are to carry out heat exchange according to the thermodynamics motion principle.
The present invention has created burning situation preferably for the fuel fugitive constituent.Making does not have clean-burning fuel gas to carry out repeated combustion, so both can reduce the discharge of harmful gases amount, can effectively improve simultaneously the efficiency of combustion of fuel, and because after flue gas enters in the cellular convection switch room 22, flow velocity reduces, dust in the flue gas will be deposited on the bottom, heat radiation switch room of annular, can effectively reduce by chimney and discharge dust in flue gas.Reached the effect of environmental protection.
When regulating combustion atmosphere as required, can realize that the relation of the two is the corresponding matching that flue gas flow is directly proportional with burning velocity by the coverage extent and the adjusting chimney lower end flue gas flow adjustment doors 18 in space between 38 pairs of stove teeth of wind blocking door.Burning velocity control gate 33 is made up of deep bead 38 that is installed in travelling oven tooth 34 lower ends and deep bead fixed bar 39, when when the boiler direction promotes deep bead fixed bar 39, deep bead 38 is driven inwards and is moved, block the space between the part stove tooth, reduce to enter the air inlet in the combustion chamber 13, thereby regulate burning velocity.Fire grate 34 is made up of the stationary furnace tooth 35 that is installed in bottom of furnace body, the travelling oven tooth 36 that is installed between the stationary furnace tooth, the travelling oven tooth is fixed on the axle 37, ash digging rod 30 is fixed on axle 37 1 ends, in the body of heater outside ash digging rod lockset 31 corresponding with ash digging rod is installed.
When the solid residue cleared up as required in the combustion chamber, by the realization that moves up and down of travelling oven tooth; When the powdery ashes in the needs cleaning combustion chamber, shake ash digging rod gently, the travelling oven tooth can stir the fuel activity in the combustion chamber, and ashes are discharged; When the block residue in the needs cleaning combustion chamber, shake ash digging rod significantly, the space between the stove tooth is increased, block residue is discharged from the stove tooth space that increases.Take off ash manipulation: ash digging rod lockset 31 has upwards been removed, and shakes ash digging rod 30, and ash digging rod 30 drives the axle of scratching in the ashes and rotates, and the axle of scratching in the ashes drives the travelling oven tooth and swings up and down, and reaches the purpose of scratching in the ashes, and ash digging rod is maintained static by lockset 31 under the normal condition.
When regulating exhaust gas temperature according to fired state, regulate exhaust gas temperature control gate 19 by moving up and down, reach the purpose of control exhaust gas temperature.
When needs are cooked or are heated up water, bell on the cooking stove mouth 28 is taken down, with angle of cone 29 rotations, boss 41 on the cone 29 is overlapped with corresponding groove 42 on the body of heater, boss 41 is meshing from groove 42 interior disengagings, cone 29 just puts down naturally, and pot (kettle) is placed on the range port 27, and pot (kettle) coincide with range port 27 contact-making surfaces and seals; After cone 29 put down, cone 29 bottom surfaces and toroidal combustion chamber 23 bottom surfaces were overlapping, block passage of flame, force flame to change its course and walk cooking stove mouth 28, flame through pot (kettle) after, enter in the thermal convection current switch room 22 from cone 29 conical surfaces and floss hole 4, all the other courses of work are identical when heating is provided.
When needs are removed incrustation scale, take down all shoot doors 11 and body of heater top panel 26, pull out heat pipe plug 10, promptly operate scale removal.
When needs are removed cigarette ash, take down all shoot doors 11, the cigarette ash dust can fall discharge automatically, closes shoot door 11 then.
Embodiment 2:
Shown in Fig. 2,6,7, be with the difference of embodiment 1, fire grate 34 and burning velocity control gate 33 taken down be changed to burner noz(zle) 43, placing cobblestone 44 to toroidal combustion chamber place in secondary combustion chamber 14 gets final product, all the other structures are constant, but warm oneself or cook, heat up water with regard to using gases or liquid fuel like this.
Claims (8)
1, a kind of two-purpose pier boiler, comprise burner hearth and heat sink in body of heater, the body of heater, it is characterized in that burner hearth is made up of the fugitive constituent combustion chamber (14) on fuel combustion chamber (13), fuel combustion chamber (13) top and the fugitive constituent toroidal combustion chamber (23) on top, fugitive constituent combustion chamber (14), fugitive constituent toroidal combustion chamber (23) top is equipped with can upper and lower mobile cone (29), has cooking stove mouth (28) on the axis of cone (29); Heat sink is by being looped around fuel combustion chamber (13), fugitive constituent combustion chamber (14), two-layer vertical installation that fugitive constituent toroidal combustion chamber (23) and cone (29) are peripheral and interior endothermic tube (6) and outer endothermic tube (7) composition concentric with burner hearth, interior endothermic tube (6) top is communicated with the interior annular upper water sleeve (1) of upper of furnace body, interior endothermic tube (6) bottom is communicated with the interior annular lower water jacket (12) of body of heater bottom, outer endothermic tube (7) top is communicated with the outer ring upper water sleeve (3) of upper of furnace body, outer endothermic tube (7) bottom is communicated with the outer ring lower water jacket (9) of body of heater bottom, interior annular upper water sleeve (1) is communicated with by first communicating pipe (25) with outer ring upper water sleeve (3), interior annular lower water jacket (12) is communicated with by second communicating pipe (16) with outer ring lower water jacket (9), delivery port (24) is installed on outer ring upper water sleeve (3), water inlet (17) is installed on outer ring lower water jacket (9); Interior endothermic tube (6) and outer endothermic tube (7) be embedded in respectively by flame-proof sealing material (8) make within the walls airtight; Interior endothermic tube (6) and outside cellular convection heat-absorbing chamber (22) inside upper part that forms between the endothermic tube (7) have annular floss hole (4), and with the corresponding connection of fugitive constituent toroidal combustion chamber (23), have second floss hole (32) in cellular convection heat-absorbing chamber (22) outer lower portion and throat (20) corresponding position, and be communicated with throat (20); Exposed interior endothermic tube (6) and the outer endothermic tube (7) that exposes in lower end, cellular convection heat-absorbing chamber (22) outside and described second floss hole (32) that throat (20) is communicated with are with protective casing (21) respectively in annular floss hole (4); Between interior endothermic tube (6) and fuel combustion chamber (13), have vertical air preheating chamber (15), between fuel combustion chamber (13) and fugitive constituent combustion chamber (14), have the combustion air air inlet (5) that is communicated with air preheating chamber (15) between fugitive constituent combustion chamber (14) and the fugitive constituent toroidal combustion chamber (23); Cellular convection heat-absorbing chamber (22) upper end seals by flame-proof sealing material (2) with the atmosphere place of communicating, and cellular convection heat-absorbing chamber (22) lower end is by shoot door (11) sealing with the atmosphere place of communicating.
2, two-purpose pier boiler according to claim 1, it is characterized in that described in endothermic tube (6) top and bottom stretch out respectively described in annular upper water sleeve and interior annular lower water jacket (1,12), the top and bottom of described outer endothermic tube are stretched out described outer ring upper water sleeve and outer ring lower water jacket (3,9) respectively; All have hole (40) on interior endothermic tube (6) in described in the annular upper and lower water jacket and the outer endothermic tube (7) in the upper and lower water jacket of outer ring; The interior endothermic tube (6) and outer endothermic tube (7) the upper and lower end mouth of pipe pass through sealing plug (10) respectively with its sealing.
3, two-purpose pier boiler according to claim 1 is characterized in that in above-mentioned fuel combustion chamber (13) bottom fire grate (34) and burning velocity control gate (33) being installed.
4, two-purpose pier boiler according to claim 1 is characterized in that in above-mentioned fuel combustion chamber (13) inside burner noz(zle) (43) being installed.
5, two-purpose pier boiler according to claim 1, it is characterized in that above-mentioned throat (20) is in body of heater lower end one side, throat (20) is provided with two control gates, and one is exhaust gas temperature control gate (19), is installed on the passage of second floss hole (32) and throat (20); Another is flue gas flow adjustment doors (18), is installed in the lower end of throat (20).
6, two-purpose pier boiler according to claim 3, it is characterized in that above-mentioned fire grate (34) by stationary furnace tooth (35), travelling oven tooth (36), fixedly the travelling oven tooth axle (37), ash digging rod (30) and be installed in body of heater outside the ash digging rod lockset (31) corresponding with ash digging rod form.
7, two-purpose pier boiler according to claim 3 is characterized in that above-mentioned burning velocity control gate (33) is made up of deep bead (38), deep bead fixed bar (39).
8, require described two-purpose pier boiler according to right 4, it is characterized in that in above-mentioned burner hearth, filling out and put cobblestone (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100959367A CN100451477C (en) | 2007-03-28 | 2007-03-28 | Two-purpose pier boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100959367A CN100451477C (en) | 2007-03-28 | 2007-03-28 | Two-purpose pier boiler |
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| Publication Number | Publication Date |
|---|---|
| CN101029770A CN101029770A (en) | 2007-09-05 |
| CN100451477C true CN100451477C (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100959367A Active CN100451477C (en) | 2007-03-28 | 2007-03-28 | Two-purpose pier boiler |
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| Country | Link |
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| CN (1) | CN100451477C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023555B (en) * | 2019-12-25 | 2022-07-12 | 永康市吉泉铜制品有限公司 | Container with preheating block |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4424768A (en) * | 1979-05-08 | 1984-01-10 | Luigi Testa | High turbulence boiler |
| CN2137331Y (en) * | 1992-10-05 | 1993-06-30 | 何秘 | Domestic universal boiler |
| WO1997031224A1 (en) * | 1996-02-20 | 1997-08-28 | Tabel Rene | Boiler continuously supplied with solid fuel batches |
| CN2431499Y (en) * | 2000-01-26 | 2001-05-23 | 孟宪斌 | Multipurpose coal stove with electrical apparatus |
| CN1420320A (en) * | 2002-12-11 | 2003-05-28 | 刘毅 | Boiler |
| CN2577189Y (en) * | 2002-09-03 | 2003-10-01 | 李梅 | Heating stove |
-
2007
- 2007-03-28 CN CNB2007100959367A patent/CN100451477C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4424768A (en) * | 1979-05-08 | 1984-01-10 | Luigi Testa | High turbulence boiler |
| CN2137331Y (en) * | 1992-10-05 | 1993-06-30 | 何秘 | Domestic universal boiler |
| WO1997031224A1 (en) * | 1996-02-20 | 1997-08-28 | Tabel Rene | Boiler continuously supplied with solid fuel batches |
| CN2431499Y (en) * | 2000-01-26 | 2001-05-23 | 孟宪斌 | Multipurpose coal stove with electrical apparatus |
| CN2577189Y (en) * | 2002-09-03 | 2003-10-01 | 李梅 | Heating stove |
| CN1420320A (en) * | 2002-12-11 | 2003-05-28 | 刘毅 | Boiler |
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| CN101029770A (en) | 2007-09-05 |
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