CN110425597B - Kitchen range flue gas waste heat recovery device - Google Patents
Kitchen range flue gas waste heat recovery device Download PDFInfo
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- CN110425597B CN110425597B CN201910686930.XA CN201910686930A CN110425597B CN 110425597 B CN110425597 B CN 110425597B CN 201910686930 A CN201910686930 A CN 201910686930A CN 110425597 B CN110425597 B CN 110425597B
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- Prior art keywords
- storage tank
- water
- water storage
- steam box
- steam
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/08—Controlling water feed or water level; Automatic water feeding or water-level regulators with float-actuated valves
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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
- F24C3/12—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
Abstract
The invention relates to the field of waste heat recovery, in particular to a kitchen range flue gas waste heat recovery device. The method comprises the following steps: the device comprises a flue, a steam box, a water storage tank, a water guide pipe, a ball float valve, a heat exchange fin, a cold water pipe, a hot water pipe and a steam pipe; the steam box is cylindrical; the water storage tank is in a round table shape and is made of heat conduction materials; the flue is vertically arranged in the water storage tank, and two ends of the flue respectively penetrate through the water storage tank, the steam tank top plate and the bottom plate; the water guide pipe is arranged at the lower part of the side wall of the water storage tank; the heat exchange plate is spiral; the steam pipe is arranged at the upper ends of the steam box and the water storage tank and is communicated with the steam box and the water storage tank respectively; the invention utilizes the heat exchange between the high-temperature flue gas and the water in the steam tank and the water in the water storage tank in turn to change the high-temperature flue gas into the low-temperature flue gas, thereby effectively solving the problem of flue gas waste heat recovery.
Description
Technical Field
The invention relates to the field of waste heat recovery, in particular to a kitchen range flue gas waste heat recovery device.
Background
In daily life, the kitchen range is commonly used, it utilizes the heat heating frying pan that the furnace end produced, the high temperature waste gas of production directly discharges outside the stove, however do not have effectual utilization to the high temperature flue gas that the furnace end produced, but directly discharge outside the stove, there is the thermal efficiency low, the extravagant serious phenomenon of heat energy, heat energy loss is far greater than the utilization quantity, often need use a large amount of hot water and hot steam in the culinary art process, need add hot water alone and obtain hot water and hot steam usually, how to retrieve the flue gas waste heat of kitchen range and recycle has become general consensus.
Disclosure of Invention
Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a range flue gas waste heat recovery device, which utilizes high temperature flue gas to exchange heat with water in a water tank, so as to solve the problems of low waste heat recovery efficiency of the exhaust gas of a gas range and resource waste.
The invention realizes the aim through the following technical scheme: a range flue gas waste heat recovery device comprises: the device comprises a flue, a steam box, a water storage tank, a water guide pipe, a ball float valve, a heat exchange fin, a cold water pipe, a hot water pipe and a steam pipe;
the flue is vertically arranged on the stove and communicated with a smoke exhaust pipeline of the stove;
the steam box is cylindrical, and the lower end of the steam box is provided with a hot water pipe;
the water storage tank is in a round table shape and made of heat conduction materials, the radius of the upper table surface is larger than that of the lower table surface, the water storage tank is coaxially arranged in the steam box, the top plate of the water storage tank is connected with the top plate of the steam box into a whole, the bottom plate of the water storage tank is not in contact with the bottom plate of the steam box, and the upper end of the water storage tank is provided with a cold water pipe;
the flue is vertically arranged in the water storage tank, and two ends of the flue respectively penetrate through the water storage tank, the steam tank top plate and the bottom plate;
the water guide pipe is arranged at the lower part of the side wall of the water storage tank and penetrates through the side wall of the water storage tank, and one end of the water guide pipe, which is positioned in the steam box, is connected with a ball float valve;
the heat exchange plate is spiral and is coaxially arranged on the outer side surface of the flue in the steam box, and the outer edge of the heat exchange plate penetrates through the water storage tank and is connected with the inner wall surface of the steam box into a whole;
the steam pipe is arranged at the upper ends of the steam box and the water storage tank and is communicated with the steam box and the water storage tank respectively.
In one embodiment, the cold water pipe is connected in series with a solenoid valve.
In one embodiment, the upper part of the water storage tank is provided with a high water level probe and a low water level probe.
In one embodiment, the steam box is internally provided with a temperature probe, and the horizontal position of the temperature probe is lower than that of the ball float valve.
In one embodiment, a water discharge pipe is vertically arranged at the lower end of the water storage tank, one end of the water discharge pipe is communicated with the inside of the water storage tank, and the other end of the water discharge pipe penetrates through the steam box.
In one embodiment, a plurality of heat conducting fins are arranged on the heat exchange fin.
The invention has the beneficial effects that:
1. the invention utilizes the heat exchange between the high-temperature flue gas and the water in the steam tank and the water in the water storage tank in turn to change the high-temperature flue gas into the low-temperature flue gas, thereby effectively solving the problem of flue gas waste heat recovery.
2. The invention utilizes the circular truncated cone-shaped water storage tank made of heat conduction materials and the spiral channel formed by the spiral heat exchange sheet in the steam tank, increases the heat exchange area and time between the hot steam in the steam tank and the water in the water storage tank, further improves the heat exchange efficiency, simultaneously improves the heating speed of the water in the water storage tank, and achieves the effect of quickly generating hot water.
3. The spiral channel formed by the spiral heat exchange fins in the water storage tank is utilized, so that the heat exchange area of water in the water storage tank and high-temperature flue gas is enlarged, and the heat exchange efficiency is effectively improved.
4. According to the invention, the automatic water replenishing of the water in the water storage tank to the steam box is completed by utilizing the float valve, so that the phenomenon of dry burning of the steam box is effectively avoided, and the effect of reducing manual operation is achieved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Reference numerals: 100 parts of flue, 210 parts of steam box, 220 parts of water storage tank, 230 parts of water guide pipe, 240 parts of ball float valve, 300 parts of heat exchange plate, 400 parts of cold water pipe, 500 parts of hot water pipe, 600 parts of steam pipe, 700 parts of electromagnetic valve, 810 parts of high water level probe, 820 parts of low water level probe, 830 parts of temperature probe and 900 parts of water discharge pipe.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those embodiments can be easily implemented by those having ordinary skill in the art to which the present invention pertains. However, the present invention may be embodied in various different forms, and thus the present invention is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, components not connected to the present invention will be omitted from the drawings.
In the description of the present invention, it is to be understood that the terms "middle", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation configuration and operation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1-2, a range flue gas waste heat recovery device comprises: the steam boiler comprises a flue 100, a steam box 210, a water storage tank 220, a water guide pipe 230, a ball float valve 240, a heat exchange plate 300, a cold water pipe 400, a hot water pipe 500 and a steam pipe 600;
the flue 100 is vertically arranged on the stove and communicated with a smoke exhaust pipeline of the stove, and the vertical arrangement is easier to generate a chimney effect, so that smoke can be conveniently exhausted;
the water storage tank 220 is in a circular truncated cone shape and made of a heat conduction material, the radius of the upper table top is larger than that of the lower table top, so that the heat exchange area between hot steam generated in the steam box 210 and water in the water storage tank 220 is larger, the water storage tank 220 is coaxially arranged in the steam box 210, the top plate of the water storage tank is connected with the top plate of the steam box 210 into a whole, the bottom plate of the water storage tank 220 is not in contact with the bottom plate of the steam box 210, so that heat exchange can be performed between the water in the steam box 210 and high-temperature flue gas which just enters the flue 100, the water in the steam box 210 is quickly boiled to generate the hot steam, and the upper end of the water;
the flue 100 is vertically arranged in the water storage tank 220, and two ends of the flue 100 respectively penetrate through the water storage tank 220, the top plate and the bottom plate of the steam box 210, so that high-temperature flue gas in the flue 100 can exchange water with water in the steam box 210 and water in the water storage tank 220;
the water guide pipe 230 is installed at the lower part of the side wall of the water storage tank 220 and penetrates through the side wall of the water storage tank 220, one end of the water guide pipe 230, which is located in the steam tank 220, is connected with a ball float valve 240, so that the water level in the steam tank 210 is lower than the water level in the water storage tank 220, and as the high-temperature flue gas in the flue 100 is firstly subjected to heat exchange with the water in the steam tank 210, the high-temperature flue gas is changed into medium-temperature flue gas, and the medium-temperature flue gas is then subjected to heat exchange with the water in the water storage tank 220, the water in the steam tank 210 can boil before the water in the water storage tank 220, so that hot steam is obtained, and as a large amount of hot steam in the steam tank 210 is generated and discharged, the water level in the steam tank 210 drops, the ball float valve 240 is opened, so that the water in the water storage tank 220 flows into the steam;
the heat exchanger 300 is spiral and is coaxially arranged on the outer side surface of the flue 100 inside the steam box 210, the outer edge of the heat exchanger 300 penetrates through the water storage tank 220 and is connected with the inner wall surface of the steam box 210 into a whole, the steam box 210 and the water storage tank 220 can form spiral channels respectively, the heat exchange time and the heat exchange area of the high-temperature flue gas and the water in the steam box 210 are increased, and also increases the heat exchange time and area between the hot steam generated in the steam box 210 and the water in the water storage tank 220, when a large amount of hot water is needed, the hot water is discharged from the hot water pipe 500 of the steam box 210, the water level in the steam box 210 is lowered, the ball float valve 240 is opened, the water in the water storage tank 220 flows downwards along the spiral channel in the water storage tank 220, at the moment, the hot steam in the steam box 210 flows upwards along the spiral channel in the steam box 210, the hot steam and the water in the water storage tank 220 are in a counter-flow state, and the heat exchange efficiency of the hot steam generated in the steam box 210 and the water in the water storage tank 220 is further improved;
the steam pipe 600 is disposed at the upper ends of the steam box 210 and the water storage tank 220 and is respectively communicated with the steam box 210 and the water storage tank 220, so that hot steam in the steam box 210 and the water storage tank 220 can be discharged, and water in the water storage tank 220 can smoothly flow into the steam box 210.
As shown in fig. 2, preferably, as an implementation mode, the cold water pipe 400 is connected in series with a solenoid valve 700 for controlling the replenishment of the water in the water storage tank 220.
As shown in fig. 2, preferably, as an implementation, a high water level probe 810 and a low water level probe 820 are provided inside the water storage tank 220 for controlling the opening and closing of the electromagnetic valve 700.
As shown in fig. 2, it is preferable that a temperature probe 830 is provided at an upper portion of the steam box 210, and a horizontal position of the temperature probe 830 is lower than a horizontal position of the ball float 240, so that a user can conveniently observe the temperature of the water in the steam box 210.
Preferably, as an implementation mode, the water discharge pipe 900 is vertically arranged at the lower end of the water storage tank 220, one end of the water discharge pipe 900 is communicated with the inside of the water storage tank 220, and the other end of the water discharge pipe 900 penetrates through the steam outlet box 210, so that the phenomenon of rusting of equipment in the water storage tank 220 can be effectively avoided.
Preferably, as an implementation manner, a plurality of heat conducting fins are disposed on the heat exchanger plate 300, so that the heat exchange efficiency can be further improved.
The working principle of the invention is as follows:
when the gas stove is used, cold water enters the water storage tank 220 from the cold water pipe 400, flows downwards along a spiral channel in the water storage tank 220, flows into the steam box 210 through the water guide pipe 230, and when the water level in the steam box 210 rises, the ball float valve 240 is closed, water supplement is completed, at the moment, high-temperature flue gas flows from bottom to top along the flue 100, exchanges heat with water in the steam box 210, then the generated medium-temperature flue gas exchanges heat with the water in the water storage tank 220, and finally the generated medium-temperature flue gas is changed into low-temperature flue gas and is discharged along the flue 100; when the water in the steam box 210 continuously exchanges heat with the high-temperature flue gas and boils, a large amount of hot steam is generated, the hot steam flows upwards along the spiral channel in the steam box 210, exchanges heat with the water in the water storage tank 220 in the flowing process, is discharged along the steam pipe 600 finally, and along with the discharge of a large amount of hot steam, the water in the steam box 210 is gradually reduced, the water level is reduced, the ball float valve 240 is opened, so that the water in the water storage tank 220 flows into the steam box 210, and the water supplement to the steam box 210 is automatically completed.
Claims (6)
1. A range flue gas waste heat recovery device comprises: the steam boiler comprises a flue (100), a steam box (210), a water storage tank (220), a water guide pipe (230), a ball float valve (240), a heat exchange plate (300), a cold water pipe (400), a hot water pipe (500) and a steam pipe (600);
the flue (100) is vertically arranged on the stove and communicated with a smoke exhaust pipeline of the stove;
the method is characterized in that:
the steam box (210) is cylindrical, and the lower end of the steam box is provided with a hot water pipe (500);
the water storage tank (220) is in a round table shape and made of heat conducting materials, the radius of the upper table surface is larger than that of the lower table surface, the water storage tank (220) is coaxially arranged in the steam box (210), the top plate of the water storage tank is connected with the top plate of the steam box (210) into a whole, the bottom plate of the water storage tank (220) is not in contact with the bottom plate of the steam box (210), and the upper end of the water storage tank (220) is provided with a cold water pipe (400);
the flue (100) is vertically arranged in the water storage tank (220), and two ends of the flue (100) respectively penetrate through the water storage tank (220), the top plate and the bottom plate of the steam box (210);
the water guide pipe (230) is arranged at the lower part of the side wall of the water storage tank (220) and penetrates through the side wall of the water storage tank (220), and one end, positioned in the steam box (210), of the water guide pipe (230) is connected with a ball float valve (240);
the heat exchange fins (300) are spiral and are coaxially arranged on the outer side surface of the flue (100) in the steam box (210), and the outer edges of the heat exchange fins (300) penetrate through the water storage tank (220) and are connected with the inner wall surface of the steam box (220) into a whole;
the steam pipe (600) is arranged at the upper ends of the steam box (210) and the water storage tank (220) and is communicated with the steam box (210) and the water storage tank (220) respectively.
2. The range flue gas waste heat recovery device of claim 1, wherein: the cold water pipe (500) is connected with an electromagnetic valve (700) in series.
3. The range flue gas waste heat recovery device of claim 2, wherein: the upper part of the water storage tank (220) is provided with a high water level probe (810) and a low water level probe (820).
4. The range flue gas waste heat recovery device of claim 1, wherein: a temperature probe (830) is arranged in the steam box (210), and the horizontal position of the temperature probe (830) is lower than that of the ball float valve (240).
5. The range flue gas waste heat recovery device of claim 1, wherein: the lower end of the water storage tank (220) is vertically provided with a water discharge pipe (900), one end of the water discharge pipe (900) is communicated with the inside of the water storage tank (220), and the other end of the water discharge pipe penetrates through the steam box (210).
6. The range flue gas waste heat recovery device of claim 1, wherein: the heat exchange fins (300) are provided with a plurality of heat conduction fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910686930.XA CN110425597B (en) | 2019-07-31 | 2019-07-31 | Kitchen range flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910686930.XA CN110425597B (en) | 2019-07-31 | 2019-07-31 | Kitchen range flue gas waste heat recovery device |
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| Publication Number | Publication Date |
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| CN110425597A CN110425597A (en) | 2019-11-08 |
| CN110425597B true CN110425597B (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910686930.XA Active CN110425597B (en) | 2019-07-31 | 2019-07-31 | Kitchen range flue gas waste heat recovery device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87206702U (en) * | 1987-04-18 | 1988-03-16 | 白拉锁 | Domestic multifunction energy saving stove |
| CN1122891A (en) * | 1995-05-17 | 1996-05-22 | 涂善同 | Coal-saving boiler range |
| CA2527433A1 (en) * | 2004-11-24 | 2006-05-24 | Premark Feg L.L.C. | Steam oven system having steam generator with controlled fill process |
| CN101101131A (en) * | 2006-07-05 | 2008-01-09 | 侯国山 | Water tank of coal fire |
| CN201751718U (en) * | 2010-07-10 | 2011-02-23 | 何建勤 | High-temperature low-pressure steam generator |
| CN202024373U (en) * | 2011-04-26 | 2011-11-02 | 重庆东洋锅炉有限公司 | Open multifunctional stove |
| RU2691080C1 (en) * | 2018-06-08 | 2019-06-10 | Непубличное акционерное общество "СПЕКТР" | Device for production of superheated steam in bath furnaces |
-
2019
- 2019-07-31 CN CN201910686930.XA patent/CN110425597B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87206702U (en) * | 1987-04-18 | 1988-03-16 | 白拉锁 | Domestic multifunction energy saving stove |
| CN1122891A (en) * | 1995-05-17 | 1996-05-22 | 涂善同 | Coal-saving boiler range |
| CA2527433A1 (en) * | 2004-11-24 | 2006-05-24 | Premark Feg L.L.C. | Steam oven system having steam generator with controlled fill process |
| CN101101131A (en) * | 2006-07-05 | 2008-01-09 | 侯国山 | Water tank of coal fire |
| CN201751718U (en) * | 2010-07-10 | 2011-02-23 | 何建勤 | High-temperature low-pressure steam generator |
| CN202024373U (en) * | 2011-04-26 | 2011-11-02 | 重庆东洋锅炉有限公司 | Open multifunctional stove |
| RU2691080C1 (en) * | 2018-06-08 | 2019-06-10 | Непубличное акционерное общество "СПЕКТР" | Device for production of superheated steam in bath furnaces |
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| CN110425597A (en) | 2019-11-08 |
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