CN2193498Y - Cooking and heating energy-saving stove with double-layer water jacket - Google Patents
Cooking and heating energy-saving stove with double-layer water jacket Download PDFInfo
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- CN2193498Y CN2193498Y CN 93247314 CN93247314U CN2193498Y CN 2193498 Y CN2193498 Y CN 2193498Y CN 93247314 CN93247314 CN 93247314 CN 93247314 U CN93247314 U CN 93247314U CN 2193498 Y CN2193498 Y CN 2193498Y
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Abstract
The utility model provides a double-deck water jacket cooking heating energy-saving stove, includes furnace face, stove courage, stove outer covering etc. its characterized in that still includes: the double-layer water jacket heat exchanger, the smoke abatement burner, the flue heat exchanger, the smoke control ring, the adjusting fire plate and the like are positioned around the furnace pipe, the adjusting fire plate is placed in a fire pan of the water jacket heat exchanger, the smoke control ring is placed at the upper end of an inner water jacket of the water jacket heat exchanger, a secondary air preheating channel is formed between the inner water jacket wall of the water jacket heat exchanger and the furnace pipe wall, the double-layer water jacket heat exchanger is provided with an inner ring flue and an outer ring flue, the double-layer water jacket heat exchanger has the functions of cooking, heating and bathing, the heating is fast, the furnace temperature.
Description
The utility model relates to the civil multifunctional energy-saving cooking.
For satisfying the people's lives needs, people have developed the energy-saving cooking of multi-uses such as having cooking, warm oneself, have a bath.But there is following defective in these cooking stoves: 1, Measures of technical is single, and the part makes moderate progress, but the combination property raising is little, for example: using fuel type, efficiency of combustion, absorbing aspects such as efficient, function of use, environmental pollution.2, existing multifunctional range, integral solder is many, and combining structure is few, the repair demolition difficulty, the bad whole stove of local button is scrapped many.3, existing multifunctional range, with steel make many, that cylinder iron makes lacks, corrosion resistance is poor, service life short cost height.
The purpose of this utility model, be to provide a kind of and adapt to that coal is many, burning fully, environmental pollution is little, heat utilization efficiency is high, function is many, the low life-span of cost is long, combination flexibly double-layer water jacket easy to use cook a meal and warm up energy-conservation stove.
This Double-layer water jacket cooking heating energy conserving furnace, comprise boiler face, flue, furnace shell etc., it is characterized in that also comprising: a double water jacket heat exchanger 18 that is positioned at around the boiler face lower furnace, a smoke elimination burner 3 that is positioned at burner, a chimney heat exchanger 6, a flue gas control loop 4 and parts such as accent fire dish 5, place in the fire pot of described double-layer water jacket heat exchanger 18 and transfer fire dish 5, form secondary wind preheating channel between heat exchanger 18 inner water jacket wall and the furnace wall, flue gas control loop 4 is positioned over heat exchanger 18 internal layer water jackets upper end, be interior annular flue between two water jacket compartment of heat exchanger 18, can constitute the outer ring flue between heat exchanger 18 outer walls and the furnace shell.
Described double-layer water jacket heat exchanger 18 is provided with two cylindrical shape heat exchanging water-jacket chambers, is interior annular flue between two water jacket compartment, up and down has 4 tubules to divide 4 directions with internal layer and outer water jacket UNICOM respectively in two ends at flue.A burner plate is arranged at the heat exchanger center, it is associated in the internal layer water jacket wall, the center is divided into two parts up and down, top is fire pot, transfer fire dish 5 to keep flat in the middle, the bottom cooperates with flue to make between inner water jacket wall and the furnace wall and forms secondary wind preheating channel, communicates with smoke elimination burner between two burners.The based on fuel burning is to the requirement of flue shape, and internal layer heat exchanging water-jacket inwall 19 can change along with the flue alteration of form, for example, is designed to cylindrical tube, conical tube ..., with the secondary air channel clearance control in suitable scope.Be placed with flue gas control loop 4 in internal layer water jacket upper end.The position of exhaust opening on outer water jacket, have two kinds according to assembly type: (1) is in heat exchanger wraps in external furnace body the time (closed), exhaust opening is located at outer water jacket lower end, form the outer ring flue between heat exchanger outer wall 22 and the outer furnace shell, at this moment, the heat exchange area maximum is equipped with smoke deflector control flue gas flow direction, exhaust opening and chimney UNICOM outside the external furnace body upper end has in the inside-and-outside ring flue.(2) when heat exchanger does not have body of heater to contain (open type), exhaust opening is located at outer water jacket upper end and chimney UNICOM, and this moment, heat exchange area was about the former 3/4, and smoke deflector control flue gas flow direction is housed in interior annular flue.On heat exchanger two water jacket connection places and outer wall, be provided with water inlet pipe and outlet pipe screw is installed.
Described smoke elimination burner 3, it comprise by burner dish 26, burner ring 27 form between flue burner and heat exchanger burner plate the burner seat and by blender 28, tray for combustion 29, stove silk 30 form be positioned at burner seat center eliminate smoke the burning central burner body.Burner dish 26 is that upper surface has a gear ring, and lower surface and the annular slab that the flue burner cooperates do not rotate.The burner ring is that a upper end periphery has flange, and there is the annulus spare of teeth groove the lower end, and teeth groove is pressed radially or screw is arranged, and is enclosed within the burner dish gear ring, external toothing in forming, and teeth groove is a secondary air channel, rotates the size that burner ring 27 can be controlled secondary wind.Blender 28 is by a taper short tube and the basin shape part that conical bottom surface is formed, and the big end of taper short tube has annular flange outside mouthful up, covers on burner ring end face.From Taper Pipe bottom, what face toward fumarole on the bottom surface has a few row's secondary air holes in the ranks.The conical bottom vertex of surface combines with the Taper Pipe small end up, on the circular cone bottom surface in Taper Pipe, by radially or screw be arranged with the aerosol spraying aperture, annular seamed edge is arranged outside the Taper Pipe small end, its external diameter matches with the burner internal diameter of burner seat, forms the secondary air chamber around blender 28 in burner.Tray for combustion 29 is installed in blender 28 upper ends, is uniform several ribs that arch upward in the middle of the annular slab, and rib surface has the sulculus of discharging stove silk.In the rib fusion center small circle ring is arranged, a muscle is arranged in the ring, use when lifting.Stove silk 30 is spiral heating resisting metal silks, is distributed on the burner of tray for combustion 29, is used for evenly lighting and the mixed furnace gas of secondary wind, reaches the purpose of completing combustion.
Described vertical flue heat exchanger 6 is to be nested together by the cylindrical tube that two diameters do not wait, closed at both ends and the close device of interlayer formed.The interlayer container is the heat exchanger water jacket compartment, is exhaust gases passes in the interior pipe, is evenly equipped with several fins that vertically is heated around its inner surface, and there is the chimney bell and spigot at two ends, and there is the screwed hole that inlet tube and outlet tube is installed at the water-jacket outer wall two ends.
Described flue gas control loop 4, between the furnace panel, it is a rotating short tubular part, has interior exhaust opening on the tube wall, can control the flow direction of fire door high-temperature flue gas at flue during transmission at the internal layer water jacket.
Described accent fire dish 5, be positioned at the fire pot middle part under the furnace panel, it is an annular mesh piece of regulating the bottom of a pan heat intensity, connect with a swing link and several gussets between its Internal and external cycle, its Internal and external cycle is again respectively to the higher seamed edge of both sides, plane rightabout projection, when tow sides use, can provide two to hang a pot support height.
An embodiment describes in detail the utility model below in conjunction with the one shown in the accompanying drawing.
Fig. 1 is to use the closed double-layer water jacket of the face coal fuel warm energy-conservation stove of cooking a meal partly to cut open schematic diagram;
Fig. 2 is Fig. 1 schematic top plan view;
Fig. 3 is Figure 1A-A generalized section;
Fig. 4 is its smoke elimination burner full sectional view;
Fig. 5 is that it transfers fire dish design of part figure;
Fig. 6 is system's scheme of installation;
Fig. 7 is without the furnace shell scheme of installation;
Fig. 1, Fig. 2 show a kind of closed double-layer water jacket that uses face coal fuel warm energy-conservation stove overall structure of cooking a meal.Among the figure: furnace shell on 1 boiler face, 2,3 smoke elimination burners, 4 flue gas control loops, 5 are transferred fire dishes, 6 vertical flue heat exchangers, 7 tuyere heads, 8 tuyeres, 9 stove circles, 10 bells, 11 times furnace shells, 12 big stove door plants, 13 little stove door plants, 14 fire door guide plates, 15 stove seats, 16 flues, 17 grates, 18 double-layer water jacket heat exchangers.
Fig. 3 shows the A-A section of furnace binding among Fig. 1, the section that each parts is installed after joining is a multilayer concentric circle structure, from inside to outside, each layer is successively: flue shell wall 16, heat exchanger ground floor tube wall 19, second layer tube wall 20, the 3rd layer of tube wall 21, the 4th layer of tube wall 22, last furnace shell wall 2, flue gas mouth 23, outer smoke deflector 24, interior smoke deflector 25.
More than among the embodiment shown in three figure, flue is done the Taper Pipe shape of fuel for using broken coal, combustion system belongs to grate firing type.Its operation principle is: wind enters down the ashes chamber that furnace shell 11 and stove seat 15 are formed from fire door or tuyere 8, enters the burner hearth that flue 16 constitutes by grate 17 and burns.Fuel is in the burner hearth internal combustion, simultaneously heat is passed to furnace wall 16, because cover 19(is a ground floor tube wall 19 in furnace wall 16 and the heat exchanger) between gapped, it is the secondary preheating channel, make the heat transfer of cover 19 in the flue heat exchanging penetrate heat transfer, kept burner hearth that higher temperature is arranged, for condition has been created in completing combustion based on the width of cloth, reduce heat loss due to unburned carbon, improved the stability of banking up a fire.Air then enters in the smoke elimination burner between flue 16 burners and heat exchanger burner plate after entering secondary air channel and give heat by the nature draft from grey chamber, mixes with fuel gas in the stove, carries out secondary completing combustion.High-temperature gas after the burning (seeing two tail arrows among the figure), spray in the fire pot on burner plate top, with (when referring to cooking work) after the face heat exchange of the bottom of a pan, be subjected to boiler face 1, the draft effect with chimney of stopping of stove circle 9, can not outwards overflow, through the interior exhaust opening on the flue gas control loop 4, enter the interior annular flue between the heat exchanger two-tiered water jacket, with heat exchanger second layer tube wall 20 and the 3rd layer of tube wall 21 heat exchange, from interior smoke deflector front, its back rotates a circle, exhaust opening through outer water jacket compartment lower end, enter again in the outer ring flue of heat exchange outer wall 22 and last furnace shell 2 formations, carry out heat exchange with heat exchanger outer wall 22, from outer smoke deflector front, turn over a week again to its back side, outer exhaust opening from last furnace shell 2 upper ends, enter chimney heat exchanger through cigarette holder 23, with the heat exchange of chimney heat exchanger center tube wall, be discharged to outdoor through chimney again.
The burning of fuel and the flow process of high-temperature flue gas have been narrated in the front.Below the heat exchange cyclic process of water (see among the figure shown in single tail arrow) is described as follows: the double-layer water jacket heat exchanger is this stove first order heat recovery boiler.Circulation cold water enters outer water jacket compartment by the 4th layer of pipe of heat exchanger lower end water inlet screw during work, 21 and the 4th layers of tube wall 22 heat exchange of beginning and the 3rd layer of pipe, a part of water is by 4 UNICOM's pores of interior annular flue lower end altogether, enter the internal layer water jacket compartment, with in the heat exchanger 19 and second layer pipe 20 carry out heat exchange, hot water after the heat absorption rises, pass through 4 UNICOM's pores of upper end again, turn back to outer water jacket compartment, converge with the hot water in the outer water jacket compartment, through the water outlet screw of heat exchanger overcoat 22 upper ends, outflow heat exchanger enters heat supplying pipeline.8 cross over pipes between heat exchanger internal layer water jacket compartment and the outer water jacket compartment two ends have been formed the thermal cycle passage of heat exchanger inside, have played important stabilization in heat exchanger work.
Chimney heat exchanger is this stove second utmost point waste heat boiler.Circulation cold water enters water jacket compartment from water-jacket outer wall lower end water inlet screw during work, carries out heat exchange with center tube wall, and the hot water after being heated rises along water jacket compartment, and by the water outlet screw of upper end, outflow heat exchanger enters heat supplying pipeline.This heat exchanger both can have been connected with double-deck water layer heat exchanger or in parallel the use, also can independently use.
Fig. 4 shows the smoke elimination burning structures that is used for the type of furnace shown in Figure 1.26 burner dishes, 27 burner rings are formed the burner seat of control secondary wind size among the figure; 28 blenders, 29 tray for combustions and 30 stove silks are formed the central burner body of strengthening completing combustion.Its course of work is as follows: give secondary wind after the heat through the teeth groove of burner dish 26 and burner ring 27, enter the secondary air chamber in the burner, enter in the blender through a few row's apertures that are distributed on blender 28 tube walls.When the combustible volatile in the fuel and CO gas rise to jet-burner in burner hearth, fumarole by blender 28 bottoms sprays in the blender, evenly mix with secondary wind, stove silk 30 on the burned dish 29 is lighted at once, carry out secondary completing combustion, make gas completing combustion loss be reduced to minimum.When refuelling in stove or when poking fire, can from burner, propose central burner body, operate.At this moment, secondary wind can also enter in the burner and mix with fuel gas in the stove through the spiral alveolar on burner dish 26 and the burner ring 27, carries out the burning of secondary cyclone formula.Make secondary burning technology each process, in the hope of obtaining best combustion efficiency through burning.
Fig. 5 shows and transfers fire dish design of part.It is to design for the heat intensity that improves the bottom of a pan face.Its action principle has 2 points: (1) increases the flame heat transfer area.Behind the flame ejection burner, because the draft of chimney, just directly the exhaust opening direction is mobile inwardly for flame, reduced the heat transfer area of flame at the bottom of a pan face, to transfer the swing link on the fire dish to rotate to interior exhaust opening below for this reason, hinder flame directly flows in exhaust opening, force its at the bottom of a pan face through reaching than the route of growing, in bigger contact area.(2) the pot height is hung in adjustment.Because hanging pot highly also is the principal element that influences the bottom of a pan heat intensity, so should resolve.During adjustment, utilize the high rim structure of transferring fire dish 5 inside and outside circumferential both sides, garden projectioies, the method that adopts tow sides to use can obtain two support height in the stove basin.When if the bottom of a pan face does not match with the endoporus of transferring fire dish 5, also can be used the port circle is placed on it, reach the purpose that the bottom of a pan face is placed the flame temperature optimum position, played the effect that is not had when only adjusting with the stove circle.
Fig. 6 shows a kind of heating system scheme of installation of this energy-conservation stove.Among the figure: 31 extra feed tanks, 32 bodies of heater, 33 boiled water tanks, reservoir 34,35 shower nozzles, 36 radiators, 37 heat supplying pipelines, 38 water return pipelines.Serving as main to the room heating with the double braid covering heat exchanger in the body of heater 32 among this figure, is boiling water with the chimney heat exchanger, the heat supply of having a bath.The course of work is: when closing a, b valve, and the water ebuillition of heated in the chimney heat exchanger, the steam of generation (1) enters boiled water tank with the water ebuillition of heated by valve D, uses for boiling water; (2) enter reservoir by valve C, water is heated for having a bath and the shower use.When closing C, D valve, open a, b valve, chimney heat exchanger is just incorporated the heating circulatory system into and is heated to the room.
Fig. 7 shows this energy-conservation stove without external furnace body, uses the installation diagram when building table by laying bricks or stones.Among the figure: 39 build body of heater by laying bricks or stones, and 1, boiler face parts, 18 double-layer water jacket heat exchangers, 40 inner furnace body parts, 6 chimney heat exchangers.The characteristics of this installation form are after removing the external furnace body parts, to be installed in the table of building by laying bricks or stones.This mode is fit to dining room, restaurant, hotel and collective unit and uses.Carry out many stoves according to the number of having dinner, heating area, the suitable specification of selection and be installed in parallel use, both increased the cooking ability, also enlarged heating area.
The advantage of the utility model saving furnace:
One, altogether global design is reasonable, burning fully, heat exchange is abundant, the thermal efficiency reaches more than 70%, the many cooking of function are convenient, heating area is big, combination flexibly, strong adaptability, can cast for the low life-span of steel cost long.
Two, aspect burning: (1) flue separates with the heat exchanger inwall, has improved fire box temperature, has reduced the imperfect combustion loss of solid fuel, has reduced fuel consumption, has improved the stability of banking up a fire, and has prolonged fire-sealing time. (2) burner is provided with smoke prevention burner, and Secondary Air temperature height both can carry out that secondary is common, the cyclone type burning, also can carry out secondary hardening completing combustion, had reduced heat loss due to unburned gases, had improved the combustion heat, had reduced smoke-discharging pollution. (3) this stove can burn in gravity-flow ventilation, also can use the blower fan blast roasting, has realized firing rapidly, and firepower is prosperous, is convenient to the cooking operation.
Three, aspect the heat exchange heating: the requirement that carry out simultaneously by the cooking heating (1), improved the fire door design, increased the fire door annex, improved the high-temperature flue gas rate of recovery, not only can the heat exchange heating when non-cooking work, and in the same old way heat exchange heating during cooking work, and quantity of heat production Bigger. (2) arranged the two-stage heat exchanger, first order double-layer water jacket heat exchanger, compact conformation, volume is little, and heat exchange area is big, dust stratification not on the heating surface, coefficient of heat transfer height, second level chimney heat exchanger, the little coefficient of heat transfer height of volume makes waste heat recovery more abundant, and flue gas loss is little. The two-stage heat exchanger supports the use, and can satisfy simultaneously heating, boiling water, the multiple instructions for use of having a bath.
Four, this stove adopts component combined structure, can integral installation, also can select by parts, combination flexibly, easy accessibility, specification is many, strong adaptability can satisfy the different user needs.
Five, this stove can not only be used the steel manufacturing, and can cylinder iron make, and with casting Dai Gang, has reduced manufacturing cost, has improved corrosion resistance, has prolonged service life.
Claims (7)
1, a kind of Double-layer water jacket cooking heating energy conserving furnace, comprise boiler face, flue, furnace shell etc., it is characterized in that also comprising: a double water jacket heat exchanger 18 that is positioned at around the boiler face lower furnace, a smoke elimination burner 3 that is positioned at burner, a chimney heat exchanger 6, a flue gas control loop 4 and parts such as accent fire dish 5, place in the fire pot of described double-layer water jacket heat exchanger 18 and transfer fire dish 5, form secondary wind preheating channel between heat exchanger 18 inner water jacket wall and the furnace wall, flue gas control loop 4 is positioned over heat exchanger 18 internal layer water jackets upper end, be interior annular flue between two water jacket compartment of heat exchanger 18, can constitute the outer ring flue between heat exchanger 18 outer walls and the furnace shell.
2, energy-conservation stove according to claim 1, it is characterized in that: described double-layer water jacket heat exchanger 18 is provided with two cylindrical shape heat exchanging water-jacket chambers, it between two water jacket compartment interior annular flue, up and down there are four tubules to divide four direction respectively in two ends at this flue with internal layer and outer water jacket compartment UNICOM, a burner plate that is associated in the internal layer water jacket wall is arranged at the heat exchanger center, this burner plate is divided into two parts up and down with the center, top is fire pot, the bottom cooperates with flue makes formation secondary wind preheating channel between inner water jacket wall and the furnace wall, and two water jacket compartment connection places of heat exchanger 18 are provided with into, outlet pipe is installed screw.
3, energy-conservation stove according to claim 1 and 2 is characterized in that: described double braid covering water jacket heat exchanger 18 internal layer heat exchanging water-jacket chamber interior walls can be cylindrical tubes, or coniform etc.
4, energy-conservation stove according to claim 1, it is characterized in that: described smoke elimination burner 3 comprises: by burner dish 26, burner ring 27 is formed burner seat between flue burner and heat exchanger burner plate and the central burner body of being made up of blender 28, tray for combustion 29, stove silk 30 that is positioned at burner seat center; Burner dish 26 is that upper surface has a gear ring, the annular slab that lower surface cooperates with the flue burner; Burner ring 27 is that a upper end periphery has chimb, there is the annulus spare of teeth groove the lower end, the tooth handle is pressed radially or screw is arranged, be enclosed within the burner dish gear ring, external toothing in forming, teeth groove is a secondary air channel, rotate burner ring 27 and can control the size of secondary wind, blender 28 is by a taper short tube and the basin shape part that conical bottom surface is formed, the big end of taper short tube has annular flange outside mouthful up, covers in burner ring upper surface, from Taper Pipe wall bottom, facing to fumarole on the bottom surface a few row's secondary air holes are in the ranks arranged, combine with the Taper Pipe small end on the corner of circular cone bottom surface, on the circular cone bottom surface in Taper Pipe, by radially or screw be arranged with the aerosol spraying aperture, annular seamed edge is arranged outside the Taper Pipe small end, and its external diameter matches with the burner internal diameter of burner seat, forms the secondary air chamber around blender 28 in burner; Tray for combustion 29 is installed in blender 28 upper ends, be uniform several ribs that arch upward in the middle of the annular slab, rib surface has the sulculus of discharging stove silk, there is a band to lift the small circle ring of muscle in the rib fusion center, stove silk 30 is spiral heating resisting metal silks, be distributed on the burner of tray for combustion 29, be used for evenly lighting and the mixed furnace gas of secondary wind, reach the purpose of completing combustion.
5, energy-conservation stove according to claim 1, it is characterized in that: described chimney heat exchanger 6 is the interlayer containers that constitute by being sleeved on two its two ends of cylindrical tube sealing together, in its central tube is flue, uniform several muscle sheet that vertically is heated around the inner surface, there is chimney socket joint hole at two ends, this interlayer container is the heat exchanger water jacket compartment, and the water jacket compartment outer wall is provided with water inlet pipe and water outlet pipe screw is installed.
6, energy-conservation stove according to claim 1, it is characterized in that: described flue gas control loop 4 is rotating short tubular parts, have interior exhaust opening on its tube wall, it is loaded between the internal layer water jacket compartment and furnace panel of double-layer water jacket heat exchanger 18, can control the flow direction of fire door high-temperature flue gas in flue during rotation.
7, energy-conservation stove according to claim 1, it is characterized in that: described accent fire dish 5 is the annular mesh piece that can regulate the bottom of a pan heat intensity, connect with a swing link and several gussets between its Internal and external cycle, its Internal and external cycle is again respectively to the higher seamed edge of plane two rightabouts projection, when tow sides use, can provide two kinds to hang a pot support height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93247314 CN2193498Y (en) | 1993-12-16 | 1993-12-16 | Cooking and heating energy-saving stove with double-layer water jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93247314 CN2193498Y (en) | 1993-12-16 | 1993-12-16 | Cooking and heating energy-saving stove with double-layer water jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2193498Y true CN2193498Y (en) | 1995-03-29 |
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ID=33819749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93247314 Expired - Fee Related CN2193498Y (en) | 1993-12-16 | 1993-12-16 | Cooking and heating energy-saving stove with double-layer water jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2193498Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135279A (en) * | 2011-02-24 | 2011-07-27 | 河南省四达仙龙实业有限公司 | Multifunctional cooking energy-saving coal stove |
| CN103836650A (en) * | 2014-03-28 | 2014-06-04 | 四川省焱森炉业有限公司 | Dust fall furnace efficiently utilizing flue gas waste heat |
| CN103940069A (en) * | 2014-04-17 | 2014-07-23 | 四川省焱森炉业有限公司 | Smoke waste heat utilization kitchenware system |
| CN106152181A (en) * | 2016-08-26 | 2016-11-23 | 周兴祥 | A kind of gas furnace |
| CN112033204A (en) * | 2020-08-26 | 2020-12-04 | 刘娜 | Industrial boiler waste heat utilization system |
-
1993
- 1993-12-16 CN CN 93247314 patent/CN2193498Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135279A (en) * | 2011-02-24 | 2011-07-27 | 河南省四达仙龙实业有限公司 | Multifunctional cooking energy-saving coal stove |
| CN103836650A (en) * | 2014-03-28 | 2014-06-04 | 四川省焱森炉业有限公司 | Dust fall furnace efficiently utilizing flue gas waste heat |
| CN103940069A (en) * | 2014-04-17 | 2014-07-23 | 四川省焱森炉业有限公司 | Smoke waste heat utilization kitchenware system |
| CN106152181A (en) * | 2016-08-26 | 2016-11-23 | 周兴祥 | A kind of gas furnace |
| CN106152181B (en) * | 2016-08-26 | 2018-06-26 | 周兴祥 | A kind of gas furnace |
| CN112033204A (en) * | 2020-08-26 | 2020-12-04 | 刘娜 | Industrial boiler waste heat utilization system |
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