CN210624620U - Small cooking stove with primary waste heat recovery function - Google Patents
Small cooking stove with primary waste heat recovery function Download PDFInfo
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- CN210624620U CN210624620U CN201920996153.4U CN201920996153U CN210624620U CN 210624620 U CN210624620 U CN 210624620U CN 201920996153 U CN201920996153 U CN 201920996153U CN 210624620 U CN210624620 U CN 210624620U
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Abstract
The utility model discloses a small pot stove with primary waste heat recovery function, which comprises a stove body and a hearth at the center of the stove body, wherein a stove head is arranged at the center of the middle part in the hearth, the top of the stove body is movably connected with a frying pan, the stove body is a hollow hexagonal frustum and is internally provided with a cavity which winds the outer wall of the hearth for a circle, and a primary waste heat exchange tube is arranged in the cavity; the primary waste heat exchange tube is a hollow regular hexagon ring, the hollow regular hexagon ring is sequentially connected end to end by six trapezoidal tubes with through holes on the side surfaces, and the included angle of the connection part is 120 degrees; a plurality of high-temperature tail gas inlets communicated with the inside of the hearth are uniformly arranged on the primary waste heat exchange tube at intervals; the tail end of the primary waste heat exchange pipe is communicated with the head end of the smoke exhaust pipe through a guide pipe, and a strong exhaust fan is arranged on the connecting channel; the bottom of the smoke exhaust pipe is provided with a condensed water outlet; a partition plate is vertically arranged in the cavity, a tap water inlet is arranged on one side of the partition plate, and the tap water inlet is connected with a water source through a water inlet pipe; a tap water outlet at the other side of the partition plate.
Description
Technical Field
The utility model belongs to the waste heat recovery field relates to a little pot and stove with one-level waste heat recovery function.
Background
According to statistics, the existing gas stove in the catering industry has serious heat loss and common empty burning phenomenon, the average heat efficiency is only 20 percent, the heat loss is as high as 80 percent, and great energy waste is caused. The heat efficiency of the gas stove is the effective utilization rate of the gas heat energy in the using process of the gas stove. From the thermal efficiency of the gas stove, the phenomenon that the utilization rate of gas heat energy is not high generally exists in the household gas stove, and about 40-50% of the gas heat energy is wasted in use. Commercial gas cooking utensils that use on the current market, its combustion method still adopts traditional malleation open combustion mode, makes burning flame and high temperature flue gas directly leak among the gas combustion process for form the high carbon gas direct discharge of a large amount of incomplete combustion after the gas combustion in the surrounding environment, thereby make the heat that the gas combustion produced only a small part by the pan utilization, heat utilization efficiency is extremely low. And the incompletely burnt gas is released to bring air pollution and noise pollution to the surrounding environment. Therefore, both domestic gas cookers and commercial gas cookers face a serious problem of great energy waste during use.
Therefore, there is a need to improve the prior art, and a system capable of maximally recycling waste gas and waste heat of a gas stove is realized, which can adjust heat recovery according to actual requirements, improve energy-saving performance of the gas stove in use, and not only can enable people to directly benefit from saving gas, but also has important practical significance for effective utilization of gas resources and protection of environmental resources.
Disclosure of Invention
The utility model aims to provide a: the utility model provides a little pot and stove with one-level waste heat recovery function has solved little pot and stove waste heat recovery's problem.
The utility model adopts the technical scheme as follows:
the small pot stove with the primary waste heat recovery function comprises a stove body and a hearth at the center of the stove body, wherein a stove head is arranged at the center of the middle part in the hearth, the top of the stove body is movably connected with a frying pot, the stove body is a hollow hexagonal frustum, a cavity which surrounds the outer wall of the hearth for a circle is formed in the stove body, and a primary waste heat exchange tube is arranged in the cavity;
the primary waste heat exchange tube is a hollow regular hexagon ring, the hollow regular hexagon ring is sequentially connected end to end by six trapezoidal tubes with through holes on the side surfaces, and the included angle of the connection part is 120 degrees; a plurality of high-temperature tail gas inlets communicated with the inside of the hearth are uniformly arranged on the primary waste heat exchange tube at intervals; the tail end of the primary waste heat exchange pipe is communicated with the head end of the smoke exhaust pipe through a guide pipe, and a strong exhaust fan is arranged on the connecting channel; the bottom of the smoke exhaust pipe is provided with a condensed water outlet; a partition plate is vertically arranged in the cavity, a tap water inlet is arranged on one side of the partition plate, and the tap water inlet is connected with a water source through a water inlet pipe; a tap water outlet at the other side of the partition plate.
In order to solve the defects of the traditional problem, the improved scheme is a Chinese food stove which belongs to the range of small cookers according to the size of the national standard cookers; the structure adopts a hexagon, and the hexagon is easy to form the heat release at the turning part and the mutual fusion and exchange of the heat of air and gas in the tube cavity; compared with the volume reduction of water in the four-sided furnace chamber, the hot water discharging speed is high; the hexagon is closer to a circle from the angle of processing of a small cooking stove, but the processing difficulty of the circle is high, and the length of the inner pipe is relatively short, so that heat exchange is not facilitated; and the tail gas and the water flow are opposite all the time; according to the scheme, about 40% of heat can be recovered, high-temperature tail gas generated by fuel is circulated in the first-stage waste heat exchange tube in the cavity for a circle under the action of the forced draught fan, and then is connected with the head end of the smoke exhaust tube, the temperature of the tail gas is gradually reduced, and finally the low-temperature tail gas is exhausted through the smoke exhaust tube; the discharging process is that the temperature of the low-temperature tail gas is reduced and condensed, and finally the low-temperature tail gas is discharged from a condensing port; the transmission direction of tap water is opposite to that of tail gas, and tap water passes through the water flow channel in the cavity and circulates for one circle, and finally becomes hot water reaching the standard from the tap water outlet 18 to flow out.
Further preferably, the bottom of the burner is connected with a gas source and a blower in parallel, and a connecting channel between the gas source and the burner is provided with an electric valve. The air blower can make the furnace end burn more fully.
Further as a preferred scheme, the primary waste heat exchange pipe and the smoke exhaust pipe are made of any one of stainless steel, copper or aluminum.
Further as a preferred scheme, an electromagnetic valve is arranged on the water inlet pipe and is positioned between the water source and the tap water inlet; the temperature probe is arranged in the inner layer cavity. When the tap water in the cavity is heated to a set temperature, the temperature probe controls the electromagnetic valve to be automatically opened, and the high-temperature tap water is replaced from the tap water outlet; when the water temperature is lower than the set temperature, the electromagnetic valve is closed, and the operation is repeated in a circulating way; the electromagnetic valve and the temperature probe are integrated into a whole, and a self-operated temperature control valve can be adopted.
Further preferably, the high-temperature tail gas inlet comprises a first gas inlet, a second gas inlet and a third gas inlet.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the water tank of the utility model can be made of copper, the heat conductivity of copper is the highest, so that the heat exchange efficiency is higher, and the heat exchange is more thorough; and a common water heater copper water tank on the market is adopted, so that the water heater is convenient to purchase, and the cost is saved.
2. The specification of the Chinese food stove of the utility model belongs to a small pot stove, which adopts a hexagon to easily form the release of the heat at the turning part and the mutual fusion and exchange of the heat of the gas in the pipe cavity; about 40% of waste heat can be recovered, and compared with the water in the quadrilateral furnace chamber, the volume of the water is reduced, and the hot water is discharged quickly; the hexagon is closer to the circle in the angle of processing from the small cooking stove, but the processing difficulty of the circle is large, and the length of the inner pipe is relatively short, thus being not beneficial to heat exchange.
3. The discharged condensed water reduces the waste heat pollution to the air.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:
FIG. 1 is a solid view of the structure of a small cooking range of the present invention;
FIG. 2 is a flow chart of tap water and tail gas according to the present invention;
the labels in the figure are: 1-frying pan, 2-furnace end, 3-first-stage waste heat exchange pipe, 6-gas source, 7-electric valve, 8-blower, 9-electromagnetic valve, 10-water source, 11-strong exhaust fan, 12-smoke exhaust pipe, 13-condensed water outlet, 14-first air inlet, 15-second air inlet, 16-third air inlet, 17-tap water inlet, 18-tap water outlet, 20-partition plate and 22-guide pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The small pot stove with the primary waste heat recovery function comprises a stove body and a hearth at the center of the stove body, wherein a stove head 2 is arranged at the center of the middle part in the hearth, a wok 1 is movably connected to the top of the stove body, the stove body is a hollow hexagonal frustum, a cavity which surrounds the outer wall of the hearth for a circle is formed in the stove body, and a primary waste heat exchange tube 3 is arranged in the cavity; the primary waste heat exchange tube 3 is a hollow regular hexagon ring, the hollow regular hexagon ring is sequentially connected end to end by six trapezoidal tubes with through holes on the side surfaces, and the included angle of the connection part is 120 degrees; a plurality of high-temperature tail gas inlets communicated with the inside of the hearth are uniformly arranged on the primary waste heat exchange tube 3 at intervals; the tail end of the primary waste heat exchange tube 3 is communicated with the head end of the smoke exhaust tube 12 through a guide tube 22, and a strong exhaust fan 11 is arranged on a connecting channel; a condensed water outlet 13 is arranged at the bottom of the smoke exhaust pipe 12; a partition plate 20 is vertically arranged in the cavity, a tap water inlet 17 is arranged on one side of the partition plate 20, and the tap water inlet 17 is connected with a water source 10 through a water inlet pipe; the other side of the partition plate 20 is provided with a tap water outlet 18.
When in work: about 40% of heat can be recovered, high-temperature tail gas generated by fuel is circulated in the first-stage waste heat exchange tube 3 in the cavity for a circle and then is connected with the head end of the smoke exhaust 12 under the action of the strong exhaust fan 11, the temperature of the tail gas is gradually reduced, and finally the low-temperature tail gas is exhausted through the smoke exhaust tube 12; the discharging process is that the temperature of the low-temperature tail gas is reduced and condensed, and finally the low-temperature tail gas is discharged from a condensing port 13; the transmission direction of tap water is opposite to that of tail gas, and tap water passes through the water flow channel in the cavity and circulates for one circle, and finally becomes hot water reaching the standard from the tap water outlet 18 to flow out.
The features and properties of the present invention will be described in further detail with reference to the following examples.
Example one
The utility model provides a small cooking stove with primary waste heat recovery function in the preferred embodiment,
the bottom of the burner 2 is connected with a gas source 6 and a blower 8 in parallel, and a connecting channel between the gas source 6 and the burner 2 is provided with an electric valve 7. The primary waste heat exchange pipe 3 and the smoke exhaust pipe 12 are made of any one of stainless steel, copper or aluminum.
When in work: clicking a switch, starting the blower 8 and the forced draft fan 11 to work, automatically igniting by ignition pulses, opening the electric valve 7, and starting fuel combustion; the high-temperature tail gas is uniformly sucked to the primary waste heat exchange tube 3 from a high-temperature tail gas inlet in the hearth under the action of the strong exhaust fan 11; after circulating for a circle, the tail gas which is changed into medium temperature enters the smoke exhaust pipe 12; finally, the condensed water is discharged to a smoke discharge pipe 12 by a strong air exhaust 11 machine for condensation, and the condensed water is discharged through a condensation port 13; running water passes through the water flow channel in the cavity and circulates for a circle, and finally the running water is changed into standard hot water from the running water outlet 18 and flows out;
the exchanger 5 adopts a water heater copper water tank, the water heater copper water tank comprises a rectangular flue and a water pipe wound and penetrated on the inner wall and the outer wall of the rectangular flue, and fins are arranged on the water pipe, so that the exchanger is provided with a water flow inlet/outlet and a tail gas inlet/outlet; the equipment is a product which can be purchased at present, so the scheme is not attached with a schematic diagram.
Example two
In this embodiment, on the basis of the first embodiment, the electromagnetic valve 9 is disposed on the water inlet pipe, and the electromagnetic valve 9 is located between the water source 10 and the tap water inlet 17; the temperature probe is arranged in the inner layer cavity. The high-temperature tail gas inlet comprises a first gas inlet 14, a second gas inlet 15 and a third gas inlet 16.
When in work:
preferably, a self-operated temperature control valve with a temperature probe and an electromagnetic valve integrated is adopted, and when the temperature of tap water in the cavity reaches a set value, the electromagnetic valve 9 is opened; high-temperature tap water is discharged out of the stove body through a tap water outlet 18;
preferably, a temperature probe is adopted to transmit temperature information to a controller, the controller controls the electromagnetic valve 9 according to the temperature information, and when the temperature of tap water in the cavity reaches a set value, the electromagnetic valve 9 is opened; high-temperature tap water is discharged out of the stove body through a tap water outlet 18; and when the electromagnetic valve 9 is out of order or the tap water is cut off; when the water temperature in the cavity reaches a set dangerous value; the controller controls the electric valve 7 to automatically cut off the gas source 6 to protect the system.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any modifications, equivalents and improvements made by those skilled in the art within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. Little pot and stove with one-level waste heat recovery function, including the furnace at the body of the kitchen and the body of the kitchen center, furnace end (2) are installed at middle part center in the furnace, and body of the kitchen top swing joint frying pan (1), its characterized in that: the stove body is a hollow hexagonal frustum, a cavity which surrounds the outer wall of the hearth in a circle is formed in the stove body, and a primary waste heat exchange tube (3) is arranged in the cavity;
the primary waste heat exchange tube (3) is a hollow regular hexagon ring, the hollow regular hexagon ring is sequentially connected end to end by six trapezoidal tubes with through holes on the side surfaces, and the included angle of the connection part is 120 degrees; a plurality of high-temperature tail gas inlets communicated with the inside of the hearth are uniformly arranged on the primary waste heat exchange tube (3) at intervals; the tail end of the primary waste heat exchange tube (3) is communicated with the head end of the smoke exhaust tube (12) through a guide tube (22), and a strong exhaust fan (11) is arranged on a connecting channel; a condensed water outlet (13) is arranged at the bottom of the smoke exhaust pipe (12);
a partition plate (20) is vertically arranged in the cavity, a tap water inlet (17) is arranged on one side of the partition plate (20), and the tap water inlet (17) is connected with a water source (10) through a water inlet pipe; a tap water outlet (18) at the other side of the partition plate (20).
2. The small cooking stove with primary waste heat recovery function according to claim 1, characterized in that: the bottom of the burner (2) is connected with a gas source (6) and a blower (8) in parallel, and an electric valve (7) is arranged on a connecting channel of the gas source (6) and the burner (2).
3. The small cooking stove with primary waste heat recovery function according to claim 1, characterized in that: the primary waste heat exchange pipe (3) and the smoke exhaust pipe (12) are made of any one of stainless steel, copper or aluminum.
4. The small cooking stove with primary waste heat recovery function according to claim 1, characterized in that: an electromagnetic valve (9) is arranged on the water inlet pipe, and the electromagnetic valve (9) is positioned between the water source (10) and the tap water inlet (17); the temperature probe is arranged in the inner layer cavity.
5. The small cooking stove with primary waste heat recovery function according to claim 1, characterized in that: the high-temperature tail gas inlet comprises a first gas inlet (14), a second gas inlet (15) and a third gas inlet (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996153.4U CN210624620U (en) | 2019-06-28 | 2019-06-28 | Small cooking stove with primary waste heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996153.4U CN210624620U (en) | 2019-06-28 | 2019-06-28 | Small cooking stove with primary waste heat recovery function |
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| Publication Number | Publication Date |
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| CN210624620U true CN210624620U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920996153.4U Active CN210624620U (en) | 2019-06-28 | 2019-06-28 | Small cooking stove with primary waste heat recovery function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113253A (en) * | 2020-10-13 | 2020-12-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke guide pipe of combined stove and combined stove with smoke guide pipe |
| CN113266852A (en) * | 2021-06-03 | 2021-08-17 | 赵浩启 | Heat exchange device for gas stove and gas stove using heat exchange device |
-
2019
- 2019-06-28 CN CN201920996153.4U patent/CN210624620U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113253A (en) * | 2020-10-13 | 2020-12-22 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke guide pipe of combined stove and combined stove with smoke guide pipe |
| WO2022077757A1 (en) * | 2020-10-13 | 2022-04-21 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke guide pipe of combination stove and combination stove having same |
| CN113266852A (en) * | 2021-06-03 | 2021-08-17 | 赵浩启 | Heat exchange device for gas stove and gas stove using heat exchange device |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230530 Address after: No. 13, 1st Floor, Building 10, No. 1, Bangtai University Road, Plot SC-F-02-02-02, Lingang Economic and Technological Development Zone, Yibin City, Sichuan Province, 644000 (self declaration notification commitment) Patentee after: Sichuan Cuihuo Technology Co.,Ltd. Address before: 637100 No. 10 Sun Jiayan Road, Gaoping Airport Industrial Park, Nanchong City, Sichuan Province Patentee before: NANCHONG FENGYINGTANG KITCHEN ELECTRICAL EQUIPMENT TECHNOLOGY CO.,LTD. |
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