CN116857686A - Waste heat recovery device for waste discharge pipeline of gas stove - Google Patents
Waste heat recovery device for waste discharge pipeline of gas stove Download PDFInfo
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- CN116857686A CN116857686A CN202310896480.3A CN202310896480A CN116857686A CN 116857686 A CN116857686 A CN 116857686A CN 202310896480 A CN202310896480 A CN 202310896480A CN 116857686 A CN116857686 A CN 116857686A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C13/00—Stoves or ranges with additional provisions for heating water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/008—Ranges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明公开了一种用于燃气灶排废管道的废热回收装置，包括壳体，所述壳体为矩形箱体，在壳体内设置有换热模块，所述换热模块包括辅助冷却模块和冷却模块，在壳体前后两个侧面上开设有进风口和出风口，在所述进风口与所述出风口处分别固定连接有进风管以及出风管；在所述辅助冷却模块中通入助剂，所述助剂具有热敏活性，用于加速壳体内废汽在垂直于其运动方向上的热量均匀分布；在所述冷却模块中通入冷却液，用于对壳体内的高温废汽进行冷却；所述助剂为热敏剂；所述冷却液为水，所述冷却模块采用食品级不锈钢材质制成。本发明采用横向热量引导，纵向热量回收的方式，通过多个冷却回路，实现热量转移，经过逐级加热后，水温可以达到近50℃。
The invention discloses a waste heat recovery device for a gas stove exhaust pipe, which includes a casing. The casing is a rectangular box. A heat exchange module is provided in the casing. The heat exchange module includes an auxiliary cooling module and The cooling module has an air inlet and an air outlet on the front and rear sides of the housing, and an air inlet duct and an air outlet duct are fixedly connected to the air inlet and the air outlet respectively; in the auxiliary cooling module, Add in additives, which have heat-sensitive activity and are used to accelerate the uniform heat distribution of the waste steam in the housing perpendicular to its direction of movement; add coolant to the cooling module to cool down the high temperature in the housing. The waste steam is cooled; the auxiliary agent is a heat sensitive agent; the cooling liquid is water, and the cooling module is made of food-grade stainless steel. This invention adopts transverse heat guidance and longitudinal heat recovery to realize heat transfer through multiple cooling circuits. After step-by-step heating, the water temperature can reach nearly 50°C.
Description
Technical Field
The application relates to the technical field of waste heat recovery, in particular to a waste heat recovery device and method for a waste gas discharge pipeline of a gas stove.
Background
It is known that in order to ensure safety during operation of all gas stoves, air is continuously blown into a hearth by adopting a blower, oxygen supplement is added, gas is completely combusted as far as possible, but even if oxygen is added, the gas cannot be completely combusted or harmful gases such as carbon monoxide are discharged as 100%, so that all large gas stoves on the market at present are assisted in full combustion of gas at the burner of the gas stove by adopting a blower blowing mode, the larger the firepower of the gas stove is, the larger the gas consumption and the blowing volume of the blower are, in continuous combustion, the gas and the air are continuously fed into the hearth, after combustion, the gas and the air are continuously discharged by a waste discharge pipeline (the danger of blasting and hypoxia is not timely discharged), and the waste gas contains a large amount of harmful gases and waste heat after the waste discharge pipeline is discharged.
Through actual measurement and investigation, a 20kw gas stove with the blowing capacity of the matched blower being about 1500m 3 Per hour, this 1500m 3 The waste gas/hour contains a large amount of harmful gas and heat energy, and the waste gas is discharged through a small pipeline with the cross section of about 60mm by 150mm, the temperature measured at the position of the exhaust pipeline with the cross section of 60mm by 150mm reaches about 180 ℃, but the waste heat temperature is higher, but the heat recovery is difficult by adopting a common recovery device, mainly the cross section of the waste pipeline is too small, the temperature is concentrated, and the temperature is high and low, and is extremely unstable.
In the prior art, a waste heat recovery device of a gas stove and a using method thereof (CN 112484101A) are disclosed, the device comprises two gas stove brackets arranged on the upper surface of a gas stove body, grooves are uniformly formed in the inner side walls of the gas stove brackets, annular pipe bodies are clamped on the inner side walls of the grooves, the two annular pipe bodies are communicated through a first pipe body vertically, the two annular pipe bodies positioned at the bottom layer are communicated through two second pipe bodies, a third pipe body is communicated with the outer side wall of the annular pipe body positioned at the lower left corner, and a fourth pipe body is communicated with the outer side wall of the annular pipe body positioned at the lower right corner; according to the application, through the collocation of the structures such as the annular pipe body, the first pipe body and the fourth pipe body, waste heat recovery can be performed on open fire, and through the collocation of the structures such as the first water tank and the shell, waste heat recovery can be performed on heat in steam.
In the prior art, the structure of the gas stove is improved, the utilization of waste heat of the gas stove is realized, and a device for realizing the recovery of the waste heat of the gas stove without improving the structure of the existing gas stove is absent.
Disclosure of Invention
The application aims at overcoming the defects of the prior art, and provides a waste heat recovery device and a waste heat recovery method for a waste discharge pipeline of a gas stove, which are directly connected with the waste discharge pipe of the gas stove without improving the structure of the gas stove, so as to solve the waste heat utilization problem of the waste discharge pipeline of the gas stove.
The application provides a waste heat recovery device for a waste discharge pipeline of a gas stove, which comprises a shell, wherein the shell is a rectangular box body, a heat exchange module is arranged in the shell and comprises an auxiliary cooling module and a cooling module, an air inlet and an air outlet are formed in the front side surface and the rear side surface of the shell, and an air inlet pipe and an air outlet pipe are respectively fixedly connected at the air inlet and the air outlet;
an auxiliary agent is introduced into the auxiliary cooling module, and the auxiliary agent has thermosensitive activity and is used for accelerating the uniform distribution of heat of waste steam in the shell in the direction perpendicular to the movement direction of the waste steam;
introducing cooling liquid into the cooling module for cooling the height Wen Feiqi in the shell;
the auxiliary agent is a thermosensitive agent;
the cooling liquid is water, and the cooling module is made of food-grade stainless steel.
Further, the auxiliary cooling module is composed of an auxiliary cooling pipe, two ends of the auxiliary cooling pipe are sealed, the auxiliary cooling pipe is filled with the auxiliary agent, the auxiliary cooling pipe is connected with a straight pipe section I through a U-shaped elbow I, and a plurality of straight pipe sections I and the U-shaped elbow I are sequentially connected front and back to form a serpentine coil.
Further, the cooling module comprises an inlet collecting pipe, an outlet collecting pipe, an inlet pipe, an outlet pipe and a plurality of heat exchange pipes, wherein the inlet collecting pipe and the two ends of the outlet collecting pipe are closed, the inlet collecting pipe and the middle part of the outlet collecting pipe are respectively connected with the inlet pipe and the outlet pipe, the inlet pipe and the outlet pipe penetrate through one side face of a shell adjacent to an air outlet or an air inlet, one end of each heat exchange pipe is connected with the inlet collecting pipe, the other end of each heat exchange pipe is connected with the outlet collecting pipe, the heat exchange pipes are connected with a straight pipe section II through a U-shaped elbow II, and a plurality of straight pipe sections II and U-shaped elbows II are sequentially connected front and back to form a snake-shaped coil.
Further, the outer peripheral outline of the cross sections of the auxiliary cooling pipes and the heat exchange pipes is generally rectangular, the auxiliary cooling pipes and the heat exchange pipes are placed perpendicular to the movement direction of the waste steam, end covers are fixedly arranged at two ends of the auxiliary cooling pipes and the heat exchange pipes, and the end covers penetrate through the auxiliary cooling pipes and the heat exchange pipes;
the auxiliary cooling modules and the cooling modules are alternately arranged in layers along the direction perpendicular to the movement direction of the waste steam.
Further, the inlet pipe is close to the air outlet pipe, and the outlet pipe is close to the air inlet pipe.
Further, a plurality of temperature equalizing plates are arranged between the two end covers at equal intervals and penetrate through the auxiliary cooling pipes and the heat exchange pipes.
Further, the heat exchange module is composed of 2 auxiliary cooling modules and 1 cooling module, and the auxiliary cooling modules are respectively arranged on two sides of the cooling modules.
Further, the U-shaped elbow I is connected with the straight pipe section I after being inclined, and the inclination direction of the U-shaped elbow I connected with the two ends of the same straight pipe section I is opposite.
Further, the cooling module is composed of 2 heat exchange tubes, and two ends of each heat exchange tube are respectively positioned on the same side of the heat exchange module.
Further, on one side close to the inlet collecting pipe, the U-shaped elbow II is obliquely arranged, and on one side far away from the inlet collecting pipe, the U-shaped elbow II is perpendicular to the movement direction of the waste steam.
Further, the cross-sectional area of the air inlet pipe is 60% of the cross-sectional area of the air outlet pipe.
Further, grid plates are respectively arranged between the air inlet and the air inlet pipe and between the air outlet and the air outlet pipe.
The application has the beneficial effects that:
(1) Waste steam enters the heat exchange module from the air inlet, waste steam heat close to the air inlet is focused, heat distribution is uneven in the direction perpendicular to the movement direction of the waste steam, the heat exchange module with multiple loops is designed for realizing efficient utilization of waste heat on an exhaust pipeline of a gas stove, the heat exchange module mainly comprises an auxiliary cooling module and a cooling module, an auxiliary agent with thermosensitive property is introduced into the auxiliary cooling module, good stability can be kept at normal temperature, the auxiliary agent has certain activity after being introduced into the auxiliary cooling module by a high Wen Feiqi, the heat is guided to the direction perpendicular to the movement direction of the auxiliary agent, the uniformity of heat distribution inside the device is improved, the design of multiple cooling loops is realized, heat transfer is realized, a high-temperature heat source with a very small section is transmitted layer by layer, then the heat energy is utilized, water passing through another channel of the tube pass is gradually heated in a gradient mode, and after the water temperature can reach approximately 50 ℃ after the water temperature is gradually heated.
(2) The cooling module is made of food-grade stainless steel, can be directly recycled and used for food processing, and can generate hot water continuously as long as the gas cooker is started for ignition, so that waste heat discharged by the gas cooker is utilized, the natural gas cost for burning the hot water is saved, the temperature of a smoke exhaust pipeline is reduced, the safe operation of the gas cooker is ensured by one part (a plurality of waste exhaust pipelines are too much because of high temperature and oil pollution to cause fire), the urban heat island effect is reduced, the urban environmental protection pressure is reduced, and the cooling module is an optimal product option for energy conservation and consumption reduction.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an external structure of a waste heat recovery device for a waste gas exhaust pipe of a gas stove according to an embodiment of the present application.
Fig. 2 is a schematic diagram of an internal structure of a waste heat recovery device for a waste gas exhaust pipe of a gas stove according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a heat exchange module according to an embodiment of the present application.
Fig. 4 is a schematic diagram of an auxiliary cooling tube and a cooling tube structure of a heat exchange module according to an embodiment of the present application.
Fig. 5 is a schematic connection diagram of a U-bend I, II on a side close to an inlet header of a heat exchange module according to an embodiment of the present application.
In the figure: 1. a housing; 2. a heat exchange module; 21. an auxiliary cooling module; 211. an auxiliary cooling pipe; 2111. u-shaped elbow I; 2112. straight pipe section I; 22. a cooling module; 221. an inlet header; 222. an outlet header; 223. an inlet pipe; 224. an outlet tube; 225. a heat exchange tube; 2251. u-shaped elbow II; 2252. straight pipe section II; 23. an end cap; 24. a temperature equalizing plate; 3. an air inlet pipe; 4. an air outlet pipe; 5. grid plate.
Description of the embodiments
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
The following describes in detail the embodiments of the present application with reference to the drawings and examples.
The application provides a waste heat recovery device for a waste gas discharge pipeline of a gas stove, which comprises a shell 1, wherein the shell 1 is a rectangular box body, a heat exchange module 2 is arranged in the shell 1, the heat exchange module 2 comprises an auxiliary cooling module 21 and a cooling module 22, an air inlet and an air outlet are formed in the front side surface and the rear side surface of the shell 1, and an air inlet pipe 3 and an air outlet pipe 4 are respectively and fixedly connected at the air inlet and the air outlet.
The air inlet pipe 3 and the air outlet pipe 4 of the waste heat recovery device are connected with the exhaust pipeline of the gas stove, the cross section shapes of the air inlet pipe 3 and the air outlet pipe 4 are consistent according to the cross section shape of the exhaust pipeline, and the cross section of the exhaust pipeline is generally circular or rectangular. Waste steam enters the shell 1 through the air inlet pipe 3, the heat exchange module 2 is arranged in the shell 1, the waste steam is recycled at the heat exchange module 2, the structure of the existing gas stove is not required to be improved, and the device is directly connected to an exhaust pipeline and is convenient to install and use.
An auxiliary agent is introduced into the auxiliary cooling module 21, and the auxiliary agent has thermosensitive activity and is used for accelerating the uniform distribution of heat of waste steam in the shell 1 in a direction perpendicular to the movement direction of the waste steam.
In this embodiment, an auxiliary agent with heat-sensitive property is introduced into the auxiliary cooling module 21, and the auxiliary agent can keep good stability at normal temperature, and after being introduced into the auxiliary cooling module at high Wen Feiqi, the auxiliary agent has a certain activity, so that the heat is guided to be perpendicular to the movement direction of the auxiliary agent, and the uniformity of heat distribution in the device is improved.
A cooling fluid is introduced into the cooling module 22 for cooling the height Wen Feiqi in the housing 1.
In this embodiment, the heat transfer of the waste gas is realized by the cooling module 22, the waste gas is in direct contact with the cooling module, and the cooling liquid in the cooling module is heated, so that the recycling of high temperature in the waste gas is realized.
In order to realize the transverse guiding of the waste steam heat in the shell, namely the heat guiding in the direction vertical to the movement direction of the waste steam, the adopted auxiliary agent is a thermosensitive agent, and can keep good stability at normal temperature (below 34 ℃), but the auxiliary agent is heated to a certain temperature, so that the activity of the substance is greatly improved through heat absorption, and the transverse guiding of the heat is realized.
The cooling liquid is water, and the cooling module is made of food-grade stainless steel.
In the embodiment, the cooling liquid is water, and the cooling module is made of food-grade stainless steel, so that the cooling liquid can be directly recycled for food processing, and as long as the gas cooker is started for ignition, hot water is continuously generated, so that waste heat discharged by the gas cooker is utilized, the natural gas cost for burning the hot water is saved, the temperature of a smoke exhaust pipeline is reduced, the safe operation of the gas cooker is ensured (fire occurs due to excessive oil pollution caused by high temperature of a plurality of waste exhaust pipelines), the urban heat island effect is reduced, the urban environmental protection pressure is reduced, and the cooling liquid is an optimal product option for energy conservation and consumption reduction.
The following further describes the modules of a waste heat recovery device for a waste gas exhaust pipe of a gas range with reference to fig. 3-5:
the auxiliary cooling module 21 is composed of an auxiliary cooling pipe 211, two ends of the auxiliary cooling pipe 211 are sealed, an auxiliary agent is filled in the auxiliary cooling pipe 211, the auxiliary cooling pipe 211 is connected with a straight pipe section I2112 through a U-shaped elbow I2111, and a plurality of straight pipe sections I2112 and the U-shaped elbow I2111 are sequentially connected front and back to form a serpentine coil.
Before the device is installed and used, auxiliary cooling pipes 211 of the auxiliary cooling module 21 are filled with an auxiliary agent, and after the auxiliary agent is filled, both ends of the auxiliary cooling pipes 211 are sealed.
The cooling module 22 comprises an inlet header 221, an outlet header 222, an inlet pipe 223, an outlet pipe 224 and a plurality of heat exchange pipes 225, wherein two ends of the inlet header 221 and the outlet header 222 are closed, the inlet pipe 223 and the outlet pipe 224 are respectively connected to the middle parts of the inlet header 221 and the outlet header 222, the inlet pipe 223 and the outlet pipe 224 penetrate through one side face of the shell 1 adjacent to an air outlet or an air inlet, one end of the plurality of heat exchange pipes 225 is connected with the inlet header 221, the other end of the plurality of heat exchange pipes 225 is connected with the outlet header 222, the heat exchange pipes 225 are connected with straight pipe sections II2252 by U-shaped elbows 2251, and the plurality of straight pipe sections II2252 and the U-shaped elbows II2251 are sequentially connected front and back to form a serpentine coil.
The outline of the outer periphery of the cross section formed by the auxiliary cooling pipe 211 and the plurality of heat exchange pipes 225 is generally rectangular, the auxiliary cooling pipe 211 and the heat exchange pipes 225 are placed perpendicular to the movement direction of the waste steam, and in order to fix the auxiliary cooling pipe 211 and the heat exchange pipes 225, end covers 23 are fixedly arranged at two ends of the auxiliary cooling pipe 211 and the plurality of heat exchange pipes 225, and the end covers 23 penetrate through the auxiliary cooling pipe 211 and the heat exchange pipes 225.
The heat exchange module comprises an auxiliary cooling loop and a heat exchange loop formed by a plurality of heat exchange pipes, the heat transfer is realized by the design of the plurality of loops, a high-temperature heat source with a very small section is transferred layer by layer, and then the heat energy is utilized to gradually heat the water passing through the other channel of the pipe side in a gradient manner.
In order to achieve an even distribution of the exhaust gas heat in the housing instead of focusing mainly on the exhaust gas movement direction, the auxiliary cooling module 21 and the cooling module 22 are alternately arranged in layers along the direction perpendicular to the exhaust gas movement direction in this embodiment.
As shown in fig. 3, the inlet pipe 223 is adjacent to the air outlet pipe 4, and the outlet pipe 224 is adjacent to the air inlet pipe 3.
In order to further achieve a uniform distribution of heat in the housing (1), as shown in fig. 3, a number of temperature equalizing plates 24 are provided between the two end caps 23 at equal intervals through the auxiliary cooling tube 211 and the heat exchange tube 225.
Depending on the size of the waste heat recovery device, a design may be designed with multiple auxiliary cooling modules and cooling modules layered alternately. Because this device is applied to gas-cooker exhaust duct, and the pipeline cross-section is about 60mm 150mm, if the heat transfer module of design is too big on small-size pipeline, can increase waste heat utilization cost, if the device design is too little, can make waste heat in the exhaust steam not obtain abundant utilization, according to the actual demand of exhaust steam pipeline, as shown in fig. 4, in this embodiment, the heat transfer module comprises 2 auxiliary cooling modules 21 and 1 cooling module 22, the auxiliary cooling module set up respectively in cooling module's both sides.
As shown in fig. 3 and 4, the auxiliary cooling module 21 is composed of an auxiliary cooling pipe 211, wherein the U-shaped elbow I2111 is connected with the straight pipe section I2112 after being inclined in the auxiliary cooling pipe 211, and the inclination direction of the U-shaped elbow I2111 connected with the two ends of the same straight pipe section I2112 is opposite.
According to the size of the exhaust pipe of the gas stove, in this embodiment, the cooling module 22 is composed of 2 heat exchange tubes 225, and two ends of each heat exchange tube 225 are respectively located on the same side of the heat exchange module 2.
As shown in fig. 4, the U-bend II2251 is disposed obliquely on the side close to the inlet header 221, and as shown in fig. 3, the U-bend II2251 is disposed perpendicularly to the movement direction of the exhaust gas on the side far from the inlet header 221.
In order to improve heat exchange efficiency, the cross-sectional area of the air inlet pipe 3 is 60% of the cross-sectional area of the air outlet pipe 4.
In order to protect the heat exchange module 2 in the shell 1 and increase the flow of waste steam, as shown in fig. 1 and 2, a grid plate 5 is respectively arranged between the air inlet and the air inlet pipe 3 and between the air outlet and the air outlet pipe 4.
The grid plate 5 is arranged between the air inlet and the air inlet pipe 3 and between the air outlet and the air outlet pipe 4, so that the installation and the replacement are convenient.
The foregoing is merely a preferred embodiment of the application, and although the application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for some of the features thereof. Modifications, equivalents, and alternatives falling within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (10)
1. The waste heat recovery device for the waste gas discharge pipeline of the gas stove is characterized by comprising a shell (1), wherein the shell (1) is a rectangular box body, a heat exchange module (2) is arranged in the shell (1), the heat exchange module (2) comprises an auxiliary cooling module (21) and a cooling module (22), an air inlet and an air outlet are formed in the front side surface and the rear side surface of the shell (1), and an air inlet pipe (3) and an air outlet pipe (4) are fixedly connected to the air inlet and the air outlet respectively;
an auxiliary agent is introduced into the auxiliary cooling module (21), and the auxiliary agent has thermosensitive activity and is used for accelerating the uniform distribution of heat of waste steam in the shell (1) in the direction perpendicular to the movement direction of the waste steam;
cooling fluid is introduced into the cooling module (22) for cooling the height Wen Feiqi in the housing (1);
the auxiliary agent is a thermosensitive agent;
the cooling liquid is water, and the cooling module (22) is made of food-grade stainless steel.
2. The waste heat recovery device for a waste gas kitchen range exhaust pipeline according to claim 1, wherein the auxiliary cooling module (21) is composed of an auxiliary cooling pipe (211), two ends of the auxiliary cooling pipe (211) are sealed, the auxiliary cooling pipe (211) is filled with the auxiliary agent, the auxiliary cooling pipe (211) is connected with a straight pipe section I (2112) through a U-shaped elbow I (2111), and a plurality of straight pipe sections I (2112) and the U-shaped elbow I (2111) are connected in sequence front and back to form a serpentine coil.
3. Waste heat recovery device for a waste gas exhaust pipe of a gas stove according to claim 2, wherein the cooling module (22) comprises an inlet header (221), an outlet header (222), an inlet pipe (223), an outlet pipe (224) and a plurality of heat exchange pipes (225), the inlet header (221) and the outlet header (222) are closed at two ends, the inlet pipe (223) and the outlet pipe (224) are respectively connected to the middle parts of the inlet header (221) and the outlet header (222), the inlet pipe (223) and the outlet pipe (224) penetrate through one side face of a shell (1) adjacent to an air outlet or an air inlet, one end of the plurality of heat exchange pipes (225) is connected with the inlet header (221), the other end of the plurality of heat exchange pipes (225) is connected with the outlet header (222), the heat exchange pipes (225) are connected with a straight pipe section II (2252) by a U-shaped elbow II (2251), and a plurality of straight pipe sections II (2252) and a plurality of U-shaped elbows II (2251) are sequentially connected to form a serpentine coil.
4. A waste heat recovery apparatus for a waste gas discharge pipe of a gas cooker according to claim 3, wherein the outer peripheral outline of the cross section formed by the auxiliary cooling pipe (211) and the plurality of heat exchanging pipes (225) is substantially rectangular, the auxiliary cooling pipe (211) and the plurality of heat exchanging pipes (225) are placed perpendicular to the movement direction of the waste gas, end caps (23) are fixedly provided at both ends of the auxiliary cooling pipe (211) and the plurality of heat exchanging pipes (225), and the end caps (23) penetrate through the auxiliary cooling pipe (211) and the heat exchanging pipes (225);
the auxiliary cooling modules (21) and the cooling modules (22) are alternately arranged in layers along the direction perpendicular to the movement direction of the exhaust gas.
5. Waste heat recovery device for a gas range exhaust pipe according to claim 1, characterized in that the heat exchange module (2) consists of 2 auxiliary cooling modules (21) and 1 cooling module (22), the auxiliary cooling modules (21) being arranged on both sides of the cooling modules (22), respectively.
6. The waste heat recovery apparatus for a waste gas exhaust pipe of a gas cooker according to claim 2, wherein the U-shaped elbow I (2111) is connected to the straight pipe section I (2112) after being inclined, and the inclination direction of the U-shaped elbow I (2111) connected to both ends of the same straight pipe section I (2112) is opposite.
7. A waste heat recovery apparatus for a waste gas exhaust pipe of a gas range according to claim 3, wherein the cooling module (21) is composed of 2 heat exchanging pipes (225), and both ends of each heat exchanging pipe (225) are located on the same side of the heat exchanging module (3), respectively.
8. A waste heat recovery apparatus for a waste gas discharge pipe of a gas cooker according to claim 3, wherein the U-bend II (2251) is disposed obliquely on a side close to the inlet header (221), and the U-bend II (2251) is disposed perpendicularly to a movement direction of the waste gas on a side far from the inlet header (221).
9. Waste heat recovery device for a waste gas exhaust pipe of a gas range according to claim 1, characterized in that the cross-sectional area of the air inlet pipe (3) is 60% of the cross-sectional area of the air outlet pipe (4).
10. Waste heat recovery device for a waste gas exhaust pipe of a gas range according to claim 1, characterized in that a grid plate (5) is provided between the air inlet and the air inlet pipe (3) and between the air outlet and the air outlet pipe (4), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310896480.3A CN116857686B (en) | 2023-07-21 | 2023-07-21 | A waste heat recovery device for gas stove exhaust pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310896480.3A CN116857686B (en) | 2023-07-21 | 2023-07-21 | A waste heat recovery device for gas stove exhaust pipes |
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| CN116857686A true CN116857686A (en) | 2023-10-10 |
| CN116857686B CN116857686B (en) | 2026-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310896480.3A Active CN116857686B (en) | 2023-07-21 | 2023-07-21 | A waste heat recovery device for gas stove exhaust pipes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119934849A (en) * | 2024-12-27 | 2025-05-06 | 扬州阔图制冷设备有限公司 | Tubular air conditioning heat exchanger |
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| DE202007014961U1 (en) * | 2007-10-25 | 2008-05-21 | Bachmann, Ulrich | Apparatus for recovering energy from waste gases from incinerators |
| CN210624619U (en) * | 2019-06-28 | 2020-05-26 | 南充烽英堂厨房电器设备科技有限公司 | Double-system waste heat recovery small pot stove |
| CN220303713U (en) * | 2023-07-21 | 2024-01-05 | 成都艾赛仑智能科技有限公司 | Energy saver for waste discharge pipeline of gas stove |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE202007014961U1 (en) * | 2007-10-25 | 2008-05-21 | Bachmann, Ulrich | Apparatus for recovering energy from waste gases from incinerators |
| CN210624619U (en) * | 2019-06-28 | 2020-05-26 | 南充烽英堂厨房电器设备科技有限公司 | Double-system waste heat recovery small pot stove |
| CN220303713U (en) * | 2023-07-21 | 2024-01-05 | 成都艾赛仑智能科技有限公司 | Energy saver for waste discharge pipeline of gas stove |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119934849A (en) * | 2024-12-27 | 2025-05-06 | 扬州阔图制冷设备有限公司 | Tubular air conditioning heat exchanger |
| CN119934849B (en) * | 2024-12-27 | 2025-10-14 | 扬州阔图制冷设备有限公司 | Tubular air conditioning heat exchanger |
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| CN116857686B (en) | 2026-04-07 |
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