CN111578519A - Gas hot-blast stove - Google Patents
Gas hot-blast stove Download PDFInfo
- Publication number
- CN111578519A CN111578519A CN202010436444.5A CN202010436444A CN111578519A CN 111578519 A CN111578519 A CN 111578519A CN 202010436444 A CN202010436444 A CN 202010436444A CN 111578519 A CN111578519 A CN 111578519A
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- CN
- China
- Prior art keywords
- heat exchange
- blast stove
- side wall
- hot blast
- combustion chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
- F24H7/045—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using fluid fuel
- F24H7/0458—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using fluid fuel the transfer fluid being air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2085—Arrangement or mounting of control or safety devices for air heaters using fluid fuel
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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
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a gas hot blast stove, which comprises a stove body, wherein the stove body is internally divided into a combustion chamber and a heat exchange cavity communicated with the combustion chamber, the top of the heat exchange cavity is provided with a cold air inlet, the bottom of the heat exchange cavity is provided with a hot air outlet, the heat exchange cavity is communicated with the air feeder through a cold air inlet, a combustor is arranged in the combustion chamber, a plurality of first heat exchange tubes are arranged on the first side wall of the heat exchange cavity, a plurality of second heat exchange tubes are arranged on the second side wall of the heat exchange cavity, the first side wall and the second side wall are oppositely arranged, the adjacent first heat exchange tubes are spaced by the second heat exchange tubes, and a gap is formed between the first heat exchange tube and the second side wall, a gap is formed between the second heat exchange tube and the first side wall to form an air duct, and cold air entering from the cold air inlet passes through the air duct and is discharged from the hot air outlet. The gas hot blast stove has simple structure and greatly improved heat exchange efficiency.
Description
Technical Field
The invention relates to the technical field of hot air energy sources, in particular to a gas hot air furnace.
Background
The gas hot blast stove is widely applied to drying, spraying and dehydrating various materials such as chemical industry, food, medicinal materials, tobacco, ceramics, building materials and the like. It can also be used for heating buildings such as factory buildings, auditoriums, agricultural sheds, animal houses, etc., and dehumidifying or heating processes in places such as underground mining areas, underground engineering, etc. The traditional gas hot blast stove has a complex structure and high manufacturing cost, and the utilization rate of heat energy is not high due to structural limitation.
Disclosure of Invention
The invention aims to provide a gas hot blast stove capable of improving the heat energy utilization rate.
In order to solve the technical problem, the invention provides a gas hot blast stove which comprises a stove body, wherein the stove body is internally divided into a combustion chamber and a heat exchange cavity communicated with the combustion chamber, one end of the heat exchange cavity is provided with a cold air inlet, the heat exchange cavity is communicated with the air feeder through the cold air inlet, the other end of the heat exchange cavity is provided with a hot air outlet, a combustor is arranged in the combustion chamber, a plurality of first heat exchange tubes are arranged on the first side wall of the heat exchange cavity, a plurality of second heat exchange tubes are arranged on the second side wall of the heat exchange cavity, the first side wall and the second side wall are oppositely arranged, adjacent first heat exchange tubes are spaced by the second heat exchange tubes, wherein a gap is formed between the first heat exchange tube and the second side wall, and a gap is formed between the second heat exchange tube and the first side wall to form an air duct.
The gas hot-blast stove is simple in structure, the first heat exchange tubes and the second heat exchange tubes are arranged in the heat exchange cavity at intervals, the first heat exchange tubes and the second heat exchange tubes jointly form the S-shaped hot air duct, the design is favorable for the zigzag flow of cold air along the S-shaped air duct formed by the first heat exchange tubes and the second heat exchange tubes, the path and the retention time of the cold air in the heat exchange cavity are prolonged, the cold air can be fully contacted with the first heat exchange tubes and the second heat exchange tubes, the heat exchange is completed, and the heat exchange efficiency is greatly improved.
In one embodiment, the hot air outlet is located near a proximal end of the combustion chamber and the cold air inlet is located near a distal end of the combustion chamber.
In one embodiment, the first heat exchange tube and the second heat exchange tube are parallel to each other.
In one embodiment, the tube wall of the first heat exchange tube is provided with heat exchange holes, the first heat exchange tube is internally provided with a copper foam material, and/or the tube wall of the second heat exchange tube is provided with heat exchange holes, and the second heat exchange tube is internally provided with a copper foam material.
In one embodiment, the copper foam material in the first heat exchange tube is a through-hole material with microscopic holes therein, and/or the copper foam material in the second heat exchange tube is a through-hole material with microscopic holes therein.
In one embodiment, the porosity of the through hole material is 30-40%, and the average pore diameter of the through hole material is 100-200 nm.
In one embodiment, a controller and a temperature sensor are arranged in the combustion chamber, the temperature sensor is in signal connection with the controller, and the controller receives signals of the temperature sensor to control and adjust the air volume of the blower.
In one embodiment, the controller is a programmable logic controller.
In one embodiment, a filter layer is further arranged at the cold air inlet.
In one embodiment, the filter layer contains a powdered purification material composed of a nanomaterial and activated carbon.
Drawings
Fig. 1 is a schematic structural view of a gas hot blast stove according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the invention provides a gas hot blast stove, which comprises a stove body 110, wherein the stove body 110 comprises a combustion chamber 101 and a heat exchange cavity 102 communicated with the combustion chamber 101.
The top of the heat exchange cavity 102 is provided with a cold air inlet 11, the bottom of the heat exchange cavity 102 is provided with a hot air outlet 12, and the heat exchange cavity 102 is communicated with a blower through the cold air inlet 11.
The working principle of the gas hot blast stove is that the heat of high-temperature gas generated by a burner 105 in a combustion chamber 101 is conducted to heated air, the air to be heated enters a heat exchange cavity 102 through a selected cold air inlet 11, and a temperature rising value rated value is discharged from a hot air outlet 12 after heat exchange.
Wherein, be equipped with combustor 105 in the combustion chamber 101, be equipped with many first heat exchange pipes 111 on the first side wall of heat exchange chamber 102, be equipped with many second heat exchange pipes 112 on the second side wall of heat exchange chamber 102, first side wall with the second side wall sets up relatively, and is adjacent pass through between the first heat exchange pipe 111 the second heat exchange pipe 112 interval, wherein, first heat exchange pipe 111 with the clearance has between the second side wall, second heat exchange pipe 112 with have the clearance between the first side wall in order to form the wind channel, follow the cold wind process that cold wind entry 11 got into the wind channel is followed hot air outlet 12 discharges hot-blastly.
The first heat exchange tube 111 and the second heat exchange tube 112 in the heat exchange cavity 102 are arranged at intervals to form a serpentine hot air duct 210 (dotted line part in fig. 1), the design is favorable for the cold air to flow along the serpentine air duct in a zigzag manner, and the path and the retention time of the cold air in the heat exchange cavity are prolonged, so that the cold air can be fully contacted with the first heat exchange tube 111 and the second heat exchange tube 112 to complete heat exchange, and then the cold air carries heat to be discharged from the hot air outlet 12, and the heat exchange efficiency is greatly improved.
In one embodiment, an air inlet fan 107 is further disposed in the combustion chamber 101 to facilitate better combustion of the fuel in the burner 105 by the flowing air.
In one embodiment, the hot air outlet 12 is located near the proximal end of the combustion chamber 101 and the cold air inlet 11 is located near the distal end of the combustion chamber 101. The temperature of the cold air inlet far away from the combustion chamber 101 is low, the entering cold air can be preheated firstly, the preheated air flows to the hot air outlet 12 at the bottom end of the combustion chamber 101, the heating treatment is further carried out, and the preheating treatment is favorable for improving the heat energy utilization rate.
In one embodiment, the first heat exchanger tube 111 and the second heat exchanger tube 112 are parallel to each other.
In one embodiment, the tube wall of the first heat exchange tube 111 is provided with heat exchange holes, the first heat exchange tube 111 is provided with a copper foam material inside, that is, the first heat exchange tube 111 is filled with the copper foam material inside, and the tube wall is provided with the heat exchange holes. The inventor found that heat generated in the combustion chamber 101 is easily and quickly dissipated into the heat exchange chamber, and the copper foam material is disposed inside the first heat exchange tube 111, so that the copper foam material can effectively store heat, and when cold air passes through the first heat exchange tube 111, the heat stored in the copper foam material is released from the heat exchange holes. The copper foam material has strong thermal conductivity and large heat exchange surface, so that the heat of the first heat exchange tubes 111 can be taken away by cold air until the cold air is changed into hot air and flows out of the hot air outlet 12.
In one embodiment, the tube wall of the second heat exchange tube 112 is provided with heat exchange holes, the inside of the second heat exchange tube 112 is provided with a copper foam material, that is, the inside of the second heat exchange tube 112 is filled with the copper foam material, and the tube wall is provided with heat exchange holes. The heat produced in the combustion chamber 101 is easily and quickly dissipated when entering the heat exchange cavity, and the foam copper material is arranged in the second heat exchange tube 112, so that the foam copper material can effectively store heat, and when cold air passes through the second heat exchange tube 112, the heat stored in the foam copper material is released from the heat exchange holes. The copper foam material has strong thermal conductivity and large heat exchange surface, so that the cold air can take away the heat in the second heat exchange tubes 112 until the cold air is changed into hot air and flows out of the hot air outlet 12.
In one embodiment, the copper foam material in the first heat exchanger tube 111 is a through hole material with microscopic holes therein, and/or the copper foam material in the second heat exchanger tube 112 is a through hole material with microscopic holes therein.
In one embodiment, the porosity of the through hole material is 30-40%, and the average pore diameter of the through hole material is 100-200 nm. And heat storage and heat release are facilitated.
In one embodiment, a controller and a temperature sensor are arranged in the combustion chamber 101, the temperature sensor is in signal connection with the controller, and the controller receives signals of the temperature sensor to control and adjust the air volume of the blower.
The inventor found that the conventional controller is mostly installed on the burner 105 to control the combustion power of the burner 105, and when the temperature in the combustion chamber is lowered, the controller controls the burner 105 to be turned on again, the burner 105 burns, and the switch of the burner 105 is repeatedly turned on, thereby greatly affecting the life of the burner 105.
Because the gas chamber 101 is provided with temperature sensor and controller, the controller can accept the signal of temperature, through the air inlet size of controller control forced draught blower to it is hot-blast to reduce, has avoided controlling hot-blast temperature through the switch of combustor 105, has prolonged combustor 105's life, has reduced manufacturing cost.
In one embodiment, the controller is a programmable logic controller.
In one embodiment, the cold air inlet is further provided with a filter layer, and the filter layer is used for filtering dust and impurities in the cold air and purifying the cold air. Furthermore, the filter layer contains a powder purification material consisting of a nano material and activated carbon.
The purifying material is powder, the basic components of the purifying material are active carbon with strong adsorption performance and nano materials, and the nano materials comprise nano titanium and nano silver. The titanium dioxide photocatalyst substance can generate hydroxyl radicals on the surface and release negative ions due to the photocatalytic reaction under the illumination condition, the strong oxidizing property of the hydroxyl radicals can effectively decompose bacteria, endotoxin generated after the bacteria die can be decomposed, and no pollution is caused. The nano silver adopted by the invention can effectively remove impurities and bacteria in cold air.
Above-mentioned gas hot-blast furnace's simple structure, wherein, the mutual interval sets up between first hot-exchange pipe, the hot-exchange pipe of second that are arranged in the heat exchange chamber, forms snakelike hot-blast main, and this kind of design does benefit to cold wind and follows snakelike wind channel tortuous flow, prolongs route and the dwell time of cold wind in the heat exchange chamber to cold wind can fully contact between first hot-exchange pipe, the hot-exchange pipe of second, accomplishes the heat exchange, and heat exchange efficiency improves greatly.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A gas hot blast stove is characterized by comprising a stove body, the stove body is divided into a combustion chamber and a heat exchange cavity communicated with the combustion chamber, the top of the heat exchange cavity is provided with a cold air inlet, the bottom of the heat exchange cavity is provided with a hot air outlet, the heat exchange cavity is communicated with the air feeder through a cold air inlet, a combustor is arranged in the combustion chamber, a plurality of first heat exchange tubes are arranged on the first side wall of the heat exchange cavity, a plurality of second heat exchange tubes are arranged on the second side wall of the heat exchange cavity, the first side wall and the second side wall are oppositely arranged, the adjacent first heat exchange tubes are spaced by the second heat exchange tubes, and a gap is formed between the first heat exchange tube and the second side wall, a gap is formed between the second heat exchange tube and the first side wall to form an air duct, and cold air entering from the cold air inlet passes through the air duct and is discharged from the hot air outlet.
2. The gas hot blast stove according to claim 1, wherein said hot air outlet is located near a proximal end of said combustion chamber and said cold air inlet is located near a distal end of said combustion chamber.
3. The gas hot blast stove according to claim 1, wherein said first heat exchange tubes and said second heat exchange tubes are parallel to each other.
4. The gas hot blast stove according to any one of claims 1 to 3, wherein the tube wall of the first heat exchange tube is provided with heat exchange holes and the inside of the first heat exchange tube is provided with copper foam material, and/or the tube wall of the second heat exchange tube is provided with heat exchange holes and the inside of the second heat exchange tube is provided with copper foam material.
5. The gas hot blast stove according to claim 4, characterized in that the copper foam material in the first heat exchanger tubes is a through-hole material with microscopic holes therein and/or the copper foam material in the second heat exchanger tubes is a through-hole material with microscopic holes therein.
6. The gas hot blast stove according to claim 5, characterized in that the porosity of the through hole material is 30-40%, and the average pore diameter of the through hole material is 100-200 nm.
7. The gas hot blast stove according to any one of claims 1 to 3, wherein a controller and a temperature sensor are arranged in the combustion chamber, the temperature sensor is in signal connection with the controller, and the controller receives signals of the temperature sensor to control and adjust the air volume of the blower.
8. The gas hot blast stove according to claim 7, wherein the controller is a programmable logic controller.
9. The gas hot blast stove according to any of claims 1 to 3, wherein a filter layer is further provided at the cold air inlet.
10. The gas hot blast stove according to claim 9, characterized in that the filter layer contains a powder cleaning material consisting of a nanomaterial and activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436444.5A CN111578519A (en) | 2020-05-21 | 2020-05-21 | Gas hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436444.5A CN111578519A (en) | 2020-05-21 | 2020-05-21 | Gas hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111578519A true CN111578519A (en) | 2020-08-25 |
Family
ID=72112654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010436444.5A Pending CN111578519A (en) | 2020-05-21 | 2020-05-21 | Gas hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111578519A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB571306A (en) * | 1943-11-06 | 1945-08-20 | Frederick Berry | Improvements in heating apparatus for buildings |
| GB1292464A (en) * | 1969-05-02 | 1972-10-11 | British Oxygen Co Ltd | Apparatus and method for heating fruit trees, vines, shrubs and like outdoor vegetation |
| CN1046598A (en) * | 1989-04-19 | 1990-10-31 | 约翰·弗朗西斯·厄尔奇 | Heat exchanger |
| EP0936419A2 (en) * | 1998-02-17 | 1999-08-18 | TECNOCLIMA S.p.A. | Direct-fired gas circulating heating system |
| CN102466321A (en) * | 2010-11-16 | 2012-05-23 | 金伟均 | Gas hot blast stove |
| CN204535498U (en) * | 2015-04-03 | 2015-08-05 | 成都萨伯电子应用科技有限公司 | Novel foam metal heat pipe radiator |
| EP2980478A1 (en) * | 2014-07-28 | 2016-02-03 | Marco Gehrer | Stove with air heat exchanger |
| CN110542206A (en) * | 2019-09-27 | 2019-12-06 | 河北工业大学 | Indirect hot-blast stove |
-
2020
- 2020-05-21 CN CN202010436444.5A patent/CN111578519A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB571306A (en) * | 1943-11-06 | 1945-08-20 | Frederick Berry | Improvements in heating apparatus for buildings |
| GB1292464A (en) * | 1969-05-02 | 1972-10-11 | British Oxygen Co Ltd | Apparatus and method for heating fruit trees, vines, shrubs and like outdoor vegetation |
| CN1046598A (en) * | 1989-04-19 | 1990-10-31 | 约翰·弗朗西斯·厄尔奇 | Heat exchanger |
| EP0936419A2 (en) * | 1998-02-17 | 1999-08-18 | TECNOCLIMA S.p.A. | Direct-fired gas circulating heating system |
| CN102466321A (en) * | 2010-11-16 | 2012-05-23 | 金伟均 | Gas hot blast stove |
| EP2980478A1 (en) * | 2014-07-28 | 2016-02-03 | Marco Gehrer | Stove with air heat exchanger |
| CN204535498U (en) * | 2015-04-03 | 2015-08-05 | 成都萨伯电子应用科技有限公司 | Novel foam metal heat pipe radiator |
| CN110542206A (en) * | 2019-09-27 | 2019-12-06 | 河北工业大学 | Indirect hot-blast stove |
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Application publication date: 20200825 |
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| RJ01 | Rejection of invention patent application after publication |