CN113864807A - Environment-friendly energy-saving fuel heater with uniform heat exchange and hot air drying device - Google Patents
Environment-friendly energy-saving fuel heater with uniform heat exchange and hot air drying device Download PDFInfo
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- CN113864807A CN113864807A CN202111096640.3A CN202111096640A CN113864807A CN 113864807 A CN113864807 A CN 113864807A CN 202111096640 A CN202111096640 A CN 202111096640A CN 113864807 A CN113864807 A CN 113864807A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides an environment-friendly energy-saving fuel heater with uniform heat exchange and a hot air drying device, wherein the heater comprises a combustion heating cylinder body and a first-stage heat exchanger arranged on any side of the combustion heating cylinder body; the front end of the combustion heating tube body is provided with a fuel input interface, and the rear end of the combustion heating tube body is provided with a hot smoke output interface; and the hot flue gas output interface is fixedly connected with the upper part or the lower part of the front end of the first-stage heat exchanger through a flue gas conveying pipeline. The invention has the advantages that: compare with current heater, can guarantee that calorific capacity on whole heater both sides is even, and can not appear the condition that calorific capacity is too high on one side and calorific capacity is not enough on the other side, through using this heater to in stoving room, the room and be used for drying to articles such as laver, kelp, medicinal material, mushroom class, tealeaves, vegetables, flowers and fruits, timber, can guarantee that article are dried evenly, and can not lead to partly article normally to dry because of the calorific capacity on heater both sides is inhomogeneous.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of drying equipment for kelp, laver, medicinal materials and the like, in particular to an environment-friendly energy-saving fuel heater with uniform heat exchange and a hot air drying device.
[ background of the invention ]
In daily life, drying devices such as drying boxes and drying rooms are often used for drying marine products (such as laver, kelp and fish), medicinal materials, mushrooms, tea, vegetables, flowers and fruits, wood and the like. As is well known, in the past decades, fuels for various drying equipments (for example, coal-fired boilers, coal-fired hot air burners, or coal-fired earthen hot air burners) are mainly based on coal combustion, and coal combustion has been increasingly unsuitable as a fuel for drying equipments because of its disadvantages such as heavy pollution, high emission, and environmental hazard. In recent years, with the increasing awareness of environmental protection and the continuous improvement of scientific technology, some drying devices have started to use clean energy to replace coal combustion, for example, resistance wires, electric heating cakes, microwaves, etc. are used as heat sources of drying devices.
However, in the case of industries that have high water content, require high heat, high temperature, large air volume, large air pressure, and high energy usage such as fast time, etc., it is conceivable that 20 tons of purees collected from the sea are dried into about 1.5 tons of dry vegetable products within 24 hours by one drying apparatus, and the energy consumption is required. Therefore, if the seafood is dried using a drying apparatus using a resistance wire, an electric cake, microwave, etc. as a heat source, the cost thereof is naturally two to three times higher than that of burning coal, which is difficult for the ordinary operator to endure. If the new energy equipment of the air energy drying heat pump is used, the heat energy exerted by the new energy equipment can be improved by about 3 times, but the manufacturing of the air energy drying heat pump with over 277KW (calculated by the power of a single group of 44.1W of test combination) not only has extremely high manufacturing cost; moreover, the air energy drying heat pump can be used for drying products with less moisture or small drying containers, and the drying speed and the number of the dried marine products such as laver, kelp and the like with high moisture can not reach more than 60% of the same power.
In order to achieve the purposes of energy conservation and consumption reduction, the applicant applies Chinese invention patent named as an environment-friendly and energy-saving drying device with application date of 2019.09.09 and application number of 201910857878.X, and the drying device can enable the structure of the whole combustion heater to be more compact and attractive and occupy less land resources by arranging the heat exchanger around the combustion heating cylinder; on the other hand, the heating effect of the whole combustion heater can be ensured, so that the consumption of fuel can be reduced, and the cost is reduced. However, the drying device has the following defects in the actual use process: the combustion heating tube is arranged in the middle of the heat exchanger, so that the heat energy radiated by the combustion heating tube can be blocked by the heat exchanger, and meanwhile, when the combustion heating tube is specifically dried, the distance between the combustion heating tube and an object to be dried is longer, so that the overall heat energy utilization rate is still lower, and the aim of effectively saving energy cannot be really realized.
In order to solve the problem that the overall heat utilization rate is still low, the applicant applies and publishes a Chinese invention patent named an S-shaped environment-friendly energy-saving fuel heater and an air heater with the application date of 20200402 and the application number of CN 202010254161.9; the heater comprises a combustion heating barrel; the first-stage heat exchanger is connected with the airflow output end of the combustion heating barrel, and the combustion heating barrel and the first-stage heat exchanger are arranged in a straight line; the second-stage heat exchanger is positioned on any one side of the combustion heating barrel and the first-stage heat exchanger and is connected with the first-stage heat exchanger; the third-stage heat exchanger is positioned on one side of the second-stage heat exchanger, and is connected with the second-stage heat exchanger, so that the third-stage heat exchanger, the second-stage heat exchanger, the combustion heating barrel and the first-stage heat exchanger are arranged in an S shape; this technical scheme is through utilizing the heat energy that burning heating tube and first order heat exchanger distributed out to directly dry to the surface of stoving article, can improve holistic heat utilization rate. However, after practical use, the applicant found that the heater had the following drawbacks: the first-stage heat exchanger directly sets up the airflow output end at the burning heating tube to burning heating tube and first-stage heat exchanger are a style of calligraphy and arrange, and the one end that the second level heat exchanger is close to first-stage heat exchanger is directly connected with first-stage heat exchanger output again, and this leads to the high temperature hot gas flow of burning heating tube output all to concentrate on one side of being close to first-stage heat exchanger and carry out the heat transfer, and calorific capacity on whole heater both sides is inhomogeneous, and then can lead to drying room, indoor article stoving inhomogeneous.
[ summary of the invention ]
The invention aims to solve the technical problem of providing an environment-friendly energy-saving fuel heater with uniform heat exchange and a hot air drying device, and solving the problem that the heating quantity of two sides of the existing heater is not uniform, so that the drying of articles in a drying room and a room is not uniform.
The invention is realized by the following steps:
in a first aspect, the environment-friendly and energy-saving fuel heater with uniform heat exchange comprises a combustion heating barrel body and a first-stage heat exchanger arranged on any one side of the combustion heating barrel body; the front end of the combustion heating tube body is provided with a fuel input interface, and the rear end of the combustion heating tube body is provided with a hot smoke output interface; and the hot flue gas output interface is fixedly connected with the upper part or the lower part of the front end of the first-stage heat exchanger through a flue gas conveying pipeline.
Further, the flue gas conveying pipeline comprises a main flue gas conveying pipeline arranged right above the combustion heating barrel body, a first connecting pipeline connected between the rear end of the main flue gas conveying pipeline and the hot flue gas output interface, and a second connecting pipeline connected between the front end of the main flue gas conveying pipeline and the upper portion of the front end of the first-stage heat exchanger.
Furthermore, the top of the first connecting pipeline is connected with the bottom of the rear end of the main flue gas conveying pipeline, and the hot flue gas output interface is connected with the bottom of the first connecting pipeline through a pipeline extension section.
The heat exchanger further comprises a second-stage heat exchanger arranged on the outer side of the first-stage heat exchanger; the upper part of the rear end of the first-stage heat exchanger is connected with the upper part of the rear end of the second-stage heat exchanger through a third connecting pipeline.
Further, the first-stage heat exchanger comprises a first upper heat dissipation box, a first lower heat dissipation box and a first heat dissipation pipe connected between the first upper heat dissipation box and the first lower heat dissipation box; a first hot flue gas baffle is arranged in the middle of the first upper heat dissipation box along the width direction; the second connecting pipeline is connected with the front end of the first upper heat dissipation box;
the second-stage heat exchanger comprises a second upper heat dissipation box, a second lower heat dissipation box and a second heat dissipation pipe connected between the second upper heat dissipation box and the second lower heat dissipation box; a second hot flue gas baffle is arranged in the middle of the second upper heat dissipation box along the width direction; the third connecting pipeline is connected with the rear end of the second upper radiating box; the front end of the second upper heat dissipation box is connected with a flue gas output pipeline.
Further, the lengths of the first upper heat dissipation box, the first lower heat dissipation box, the second upper heat dissipation box, the second lower heat dissipation box and the main flue gas conveying pipeline are equal.
Furthermore, walking wheels are arranged at the bottoms of the first-stage heat exchanger, the combustion heating barrel body and the second-stage heat exchanger.
Further, the flue gas conveying pipeline is a circular flue gas conveying pipeline or a square flue gas conveying pipeline.
In a second aspect, a hot air drying device uses the heater.
By adopting the technical scheme of the invention, the invention at least has the following beneficial effects:
1. the hot flue gas output interface of the combustion heating cylinder body is fixedly connected with the upper part of the front end of the first-stage heat exchanger by using the flue gas conveying pipeline, so that high-temperature hot flue gas output from the hot flue gas output interface of the combustion heating cylinder body can be conveyed to the first-stage heat exchanger for heat exchange through the flue gas conveying pipeline, and as the first-stage heat exchanger is positioned at one side of the combustion heating cylinder body instead of the hot flue gas output end of the combustion heating cylinder body, compared with the existing heater, the heat generation quantity at two sides of the whole heater can be ensured to be uniform, the situation that the heat generation quantity is overhigh at one side and insufficient at the other side can not occur, and the heater can be applied to a drying room and a room and used for drying laver, kelp, medicinal materials, mushrooms, tea leaves, vegetables, flowers, woods and other objects, and the like, so that the drying of the objects can be ensured to be uniform, and the phenomenon that partial articles cannot be normally dried due to uneven heat productivity at two sides of the heater is avoided.
2. By adopting the design of the first-stage heat exchanger and the second-stage heat exchanger, the first-stage heat exchanger and the second-stage heat exchanger can just form a structure similar to an S shape, and hot flue gas passes through the front, rear, upper and lower positions in the process of conveying in the first-stage heat exchanger and the second-stage heat exchanger, so that the front, rear, upper and lower balanced heating of the first-stage heat exchanger and the second-stage heat exchanger can be effectively ensured. The structure of a similar "U" font is just in time formed again to burning heating tube body, first connecting pipeline and main flue gas pipeline simultaneously, combines mutually supporting through "S" shape and "U" font, can effectively ensure that whole heater is upper and lower, preceding, the back is evenly generated heat to promote the stoving effect of article.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a front view of an environment-friendly and energy-saving fuel heater with uniform heat exchange;
FIG. 2 is a perspective view of an environment-friendly and energy-saving fuel heater with uniform heat exchange;
FIG. 3 is a cross-sectional view of the upper half of the first stage heat exchanger of the present invention;
FIG. 4 is a cross-sectional view of the upper half of the second stage heat exchanger of the present invention.
100-a heater;
1-a combustion heating barrel body, 11-a fuel input interface and 12-a pipeline extension section;
2-a first-stage heat exchanger, 21-a first upper radiating box, 22-a first lower radiating box, 23-a first radiating pipe and 24-a first hot flue gas partition plate;
3-a flue gas conveying pipeline, 31-a main flue gas conveying pipeline, 32-a first connecting pipeline, 33-a second connecting pipeline;
4-a second-stage heat exchanger, 41-a second upper heat dissipation box, 42-a second lower heat dissipation box, 43-a second heat dissipation pipe and 44-a second hot flue gas partition plate;
5-a third connecting pipe;
6-travelling wheels;
7-flue gas output pipeline.
[ detailed description ] embodiments
For a better understanding of the technical aspects of the present invention, reference will now be made in detail to the embodiments of the present invention, which are illustrated in the accompanying drawings.
Example 1
Referring to fig. 1 to 4, the environment-friendly and energy-saving fuel heater 100 with uniform heat exchange of the present invention includes a combustion heating cylinder body 1 and a first-stage heat exchanger 2 disposed on any side of the combustion heating cylinder body 1; the front end of the combustion heating tube body 1 is provided with a fuel input interface 11, and the rear end of the combustion heating tube body 1 is provided with a hot smoke output interface (not shown); and the hot flue gas output interface is fixedly connected with the upper part or the lower part of the front end of the first-stage heat exchanger 2 through a flue gas conveying pipeline 3.
In the invention, the hot flue gas output interface of the combustion heating cylinder body 1 is fixedly connected with the upper part of the front end of the first-stage heat exchanger 2 by using the flue gas conveying pipeline 3, so that high-temperature hot flue gas output from the hot flue gas output interface of the combustion heating cylinder body 1 can be conveyed into the first-stage heat exchanger 2 through the flue gas conveying pipeline 3 for heat exchange, because the first-stage heat exchanger 2 is positioned at one side of the combustion heating cylinder body 1 instead of the hot flue gas output end of the combustion heating cylinder body 1, compared with the existing heater, the heat generator can ensure that the heat productivity at two sides of the whole heater 100 is uniform, the situation that the heat productivity is overhigh at one side and the heat productivity is insufficient at the other side can not occur, and the heater 100 is applied to a drying room and a room and used for drying laver, kelp, medicinal materials, mushrooms, tea leaves, vegetables, flowers, woods and the like, the uniform drying of the articles can be ensured, and the phenomenon that partial articles cannot be normally dried due to the uneven heat productivity of the two sides of the heater 100 can be avoided. Meanwhile, compared with the conventional heater, the heater 100 of the present invention has a simpler and more compact overall structure and is more convenient to install and use.
In the embodiment of the present invention, the flue gas conveying pipe 3 includes a main flue gas conveying pipe 31 disposed right above the combustion heating cylinder body 1, a first connecting pipe 32 connected between the rear end of the main flue gas conveying pipe 31 and the hot flue gas output interface, and a second connecting pipe 33 connected between the front end of the main flue gas conveying pipe 31 and the upper portion of the front end of the first-stage heat exchanger 2. During specific work, high-temperature hot flue gas output by the combustion heating tube body 1 enters the first connecting pipeline 32 through the hot flue gas output interface, enters the main flue gas conveying pipeline 31 through the first connecting pipeline 32, and is finally conveyed to the first-stage heat exchanger 2 through the second connecting pipeline 33. By adopting the design of the flue gas conveying pipeline 3, the combustion heating cylinder body 1, the first connecting pipeline 32 and the main flue gas conveying pipeline 31 just form a structure similar to a U shape, and the main flue gas conveying pipeline 31 is positioned right above the combustion heating cylinder body 1, so that the high-temperature heat is uniformly distributed up and down, the heat productivity of the whole heater 100 is uniform up, down, front and back, and the drying effect of the articles is improved.
In the embodiment of the invention, the front end of the main flue gas conveying pipeline 31 is connected with the upper part of the front end of the first-stage heat exchanger 2, so that the length of the whole flue gas conveying pipeline 3 can be reduced, and the cost is reduced; and because the heat of also can the radiation of burning heating tube body 1 self, through exporting hot flue gas from the upper portion of first order heat exchanger 2 front ends, more be favorable to high temperature heat upper and lower evenly distributed. Of course, the present invention is not limited to this, and the front end of the main flue gas conveying pipe 31 may be connected to the lower portion of the front end of the first-stage heat exchanger 2.
In the embodiment of the present invention, in order to make the heat generation amount of the whole heater 100 more uniform and ensure that the structure of the whole heater 100 is simpler and more beautiful, the top of the first connection pipeline 32 is connected to the bottom of the rear end of the main flue gas conveying pipeline 31, and the hot flue gas output interface is connected to the bottom of the first connection pipeline 32 through the pipeline extension section 12.
In an embodiment of the present invention, the heat generator 100 further includes a second-stage heat exchanger 4 disposed outside the first-stage heat exchanger 2; the upper part of the rear end of the first-stage heat exchanger 2 is connected with the upper part of the rear end of the second-stage heat exchanger 4 through a third connecting pipeline 5. Through continuing to connect second level heat exchanger 4 at the rear end of first order heat exchanger 2, can carry out more abundant heat transfer to high temperature hot flue gas, because high temperature hot flue gas is produced through the burning of fuel (for example natural gas, liquefied gas, marsh gas, methanol oil etc.), can reduce fuel's use through carrying out abundant heat transfer to high temperature hot flue gas, can reduce cost. When the heat exchanger is specifically implemented, the rear end of the second-stage heat exchanger 4 can be continuously connected with the lower-stage heat exchanger according to actual use requirements, so that more sufficient heat exchange is realized. Of course, if the front end of the main flue gas conveying pipe 31 is connected with the lower part of the front end of the first-stage heat exchanger 2, the lower part of the rear end of the first-stage heat exchanger 2 is connected with the lower part of the rear end of the second-stage heat exchanger 4 through the third connecting pipe 5.
In the embodiment of the present invention, the first stage heat exchanger 2 includes a first upper heat dissipation box 21, a first lower heat dissipation box 22, and a first heat dissipation pipe 23 connected between the first upper heat dissipation box 21 and the first lower heat dissipation box 22; a first hot flue gas partition plate 24 is arranged in the middle of the first upper heat dissipation box 21 along the width direction; the second connecting pipeline 33 is connected with the front end of the first upper heat dissipation box 21; during operation, high-temperature hot flue gas is sent to the front half part of the first upper heat dissipation box 21 through the second connecting pipeline 33, then is downwards conveyed to the first lower heat dissipation box 22 through the first heat dissipation pipe 23 of the front half part, and then is upwards conveyed to the rear half part of the first upper heat dissipation box 21 through the first heat dissipation pipe 23 of the rear half part, and in the process, the whole first-stage heat exchanger 2 exchanges heat with outside air to heat the outside air; of course, if the front end of the main flue gas conveying pipe 31 is connected with the lower part of the front end of the first-stage heat exchanger 2, the first hot flue gas baffle 24 needs to be arranged in the middle of the first lower heat dissipation box 22;
the second-stage heat exchanger 4 comprises a second upper heat dissipation box 41, a second lower heat dissipation box 42 and a second heat dissipation pipe 43 connected between the second upper heat dissipation box 41 and the second lower heat dissipation box 42; a second hot flue gas partition plate 44 is arranged in the middle of the second upper heat dissipation box 41 along the width direction; the third connecting pipeline 5 is connected with the rear end of the second upper heat dissipation box 41; the front end of the second upper heat dissipation box 41 is connected with a flue gas output pipeline 7, and in specific implementation, the flue gas output pipeline 7 can be further provided with a flue gas filter (not shown), so that the output flue gas cannot pollute the surrounding environment; during operation, the hot flue gas of the latter half of first last heat dissipation case 21 can be carried to the latter half of second last heat dissipation case 41 through third connecting tube 5, then carry heat dissipation case 42 under the second via the second cooling tube 43 of latter half downwards, later upwards carry the first half of second last heat dissipation case 41 through the second cooling tube 43 of first half again, and discharge tail gas through flue gas output pipeline 7, whole second heat exchanger 4 can all continue to carry out the heat transfer with the outside air in this process, thereby the realization is heated the outside air continuously. Of course, if the front end of the main flue gas conveying pipe 31 is connected with the lower part of the front end of the first-stage heat exchanger 2, the second hot flue gas baffle 44 is arranged in the middle of the second lower heat dissipation box 42, and the flue gas output pipe 7 is arranged at the front end of the second lower heat dissipation box 42. If more stages of heat exchangers are provided, the flue gas outlet duct 7 is arranged on the last stage of heat exchanger.
By adopting the design of the first-stage heat exchanger 2 and the second-stage heat exchanger 4, the first-stage heat exchanger 2 and the second-stage heat exchanger 4 can just form a structure similar to an S shape, and hot flue gas passes through the front, rear, upper and lower positions in the process of conveying in the first-stage heat exchanger 2 and the second-stage heat exchanger 4, so that the first-stage heat exchanger 2 and the second-stage heat exchanger 4 can be effectively ensured to generate heat uniformly from front, rear, upper and lower. The structure of a similar "U" font is just in time formed again to burning heating tube body 1, first connecting pipeline 32 and main flue gas pipeline 31 simultaneously, combines mutually supporting through "S" shape and "U" font, can effectively ensure that whole heater 100 is upper and lower, preceding, the back is evenly generated heat to promote the stoving effect of article.
In the embodiment of the present invention, in order to ensure that the heat generation of the whole heater 100 is more uniform from top to bottom and from front to back, the lengths of the first upper heat dissipation box 21, the first lower heat dissipation box 22, the second upper heat dissipation box 41, the second lower heat dissipation box 42 and the main flue gas conveying pipe 31 are equal, and the front ends and the back ends of the first upper heat dissipation box 21, the first lower heat dissipation box 22, the second upper heat dissipation box 41, the second lower heat dissipation box 42 and the main flue gas conveying pipe 31 are aligned.
In the embodiment of the invention, the traveling wheels 6 are arranged at the bottoms of the first-stage heat exchanger 2, the combustion heating cylinder body 1 and the second-stage heat exchanger 4, and when the combustion heating cylinder is used, the traveling wheels 6 can be used for realizing the position movement of the whole heater 100.
As an embodiment of the present invention, the flue gas conveying pipe 3 is a circular flue gas conveying pipe.
As another embodiment of the present invention, the flue gas conveying pipe 3 is a square flue gas conveying pipe.
When the invention is implemented specifically, the combustion heating tube body 1, the first-stage heat exchanger 2, the second-stage heat exchanger 4 and the flue gas conveying pipeline 3 are all made of high-temperature-resistant materials such as 310s and the like, so that the whole heater 100 can bear high temperature and is convenient for heat energy to radiate outwards, and the heating tube is not easy to damage in the using process.
Example 2
Referring to fig. 1 to 4, the hot air drying device of the present invention includes a heater 100, and the detailed structure of the heater 100 is described in detail in embodiment 1 and is not repeated herein. Through adopting foretell heater 100, because this heater 100 can realize about, down, preceding, back uniformly generates heat, the air of sending into in the hot air drying device passes through from heater 100 left and right sides direction, consequently can carry out abundant even heating to the air of carrying in the hot air drying device, guarantee to spread to the hot-blast temperature difference of each position in the hot air drying device not very little, and then can carry out even drying to the article of placing in the hot air drying device, improve article stoving effect, and the condition such as partial article is not dried totally or partial article is scorched can not appear.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (9)
1. The utility model provides an even environmental protection and energy saving fuel heater of heat transfer which characterized in that: the heat exchanger comprises a combustion heating barrel body and a first-stage heat exchanger arranged on any side of the combustion heating barrel body; the front end of the combustion heating tube body is provided with a fuel input interface, and the rear end of the combustion heating tube body is provided with a hot smoke output interface; and the hot flue gas output interface is fixedly connected with the upper part or the lower part of the front end of the first-stage heat exchanger through a flue gas conveying pipeline.
2. The environment-friendly energy-saving fuel heater with uniform heat exchange as claimed in claim 1, characterized in that: the flue gas conveying pipeline comprises a main flue gas conveying pipeline arranged right above the combustion heating barrel body, a first connecting pipeline connected between the rear end of the main flue gas conveying pipeline and the hot flue gas output interface, and a second connecting pipeline connected between the front end of the main flue gas conveying pipeline and the upper portion of the front end of the first-stage heat exchanger.
3. The environment-friendly energy-saving fuel heater with uniform heat exchange as claimed in claim 2, characterized in that: the top of the first connecting pipeline is connected with the bottom of the rear end of the main flue gas conveying pipeline, and the hot flue gas output interface is connected with the bottom of the first connecting pipeline through a pipeline extension section.
4. The environment-friendly energy-saving fuel heater with uniform heat exchange as claimed in claim 2, characterized in that: the second-stage heat exchanger is arranged on the outer side of the first-stage heat exchanger; the upper part of the rear end of the first-stage heat exchanger is connected with the upper part of the rear end of the second-stage heat exchanger through a third connecting pipeline.
5. The environment-friendly energy-saving fuel heater with uniform heat exchange as claimed in claim 4, characterized in that: the first-stage heat exchanger comprises a first upper heat dissipation box, a first lower heat dissipation box and a first heat dissipation pipe connected between the first upper heat dissipation box and the first lower heat dissipation box; a first hot flue gas baffle is arranged in the middle of the first upper heat dissipation box along the width direction; the second connecting pipeline is connected with the front end of the first upper heat dissipation box;
the second-stage heat exchanger comprises a second upper heat dissipation box, a second lower heat dissipation box and a second heat dissipation pipe connected between the second upper heat dissipation box and the second lower heat dissipation box; a second hot flue gas baffle is arranged in the middle of the second upper heat dissipation box along the width direction; the third connecting pipeline is connected with the rear end of the second upper radiating box; the front end of the second upper heat dissipation box is connected with a flue gas output pipeline.
6. The environment-friendly energy-saving fuel heater with uniform heat exchange as claimed in claim 5, characterized in that: the lengths of the first upper heat dissipation box, the first lower heat dissipation box, the second upper heat dissipation box, the second lower heat dissipation box and the main flue gas conveying pipeline are equal.
7. The environment-friendly energy-saving fuel heater with uniform heat exchange as claimed in claim 4, characterized in that: and traveling wheels are arranged at the bottoms of the first-stage heat exchanger, the combustion heating barrel body and the second-stage heat exchanger.
8. The environment-friendly energy-saving fuel heater with uniform heat exchange as claimed in claim 1, characterized in that: the flue gas conveying pipeline is a round flue gas conveying pipeline or a square flue gas conveying pipeline.
9. The utility model provides a hot air drying device which characterized in that: the hot air drying device uses the heater according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111096640.3A CN113864807A (en) | 2021-09-18 | 2021-09-18 | Environment-friendly energy-saving fuel heater with uniform heat exchange and hot air drying device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111096640.3A CN113864807A (en) | 2021-09-18 | 2021-09-18 | Environment-friendly energy-saving fuel heater with uniform heat exchange and hot air drying device |
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| CN113864807A true CN113864807A (en) | 2021-12-31 |
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