Heat and power cogeneration convection radiation coupling baking system

Abstract

The invention provides a heat and power cogeneration convection radiation coupling baking system which is characterized in that the heat and power cogeneration convection radiation coupling baking system comprises a waste heat heating device, a radiation heating device and a controller, and a waste heat temperature sensor is arranged in the waste heat heating device; a database is preset in the controller, a plurality of groups of radiation information are preset in the database, the radiation information comprises radiation power and radiation temperature, the radiation power reflects the motion power of the radiation heating device, the radiation temperature reflects the heating temperature of the radiation heating device, and the radiation power and the radiation temperature are in one-to-one correspondence; the acquisition module is used for acquiring the waste heat temperature detected by the waste heat temperature sensor, and the waste heat temperature reflects the actual temperature of the waste heat entering the baking system; the comparison module is used for acquiring required temperature information sent by the outside, acquiring the waste heat temperature in the acquisition module, comparing the required temperature information with the waste heat temperature, acquiring a temperature difference value, indexing in the database according to the temperature difference value to obtain corresponding radiation power and acquired radiation power, and sending an adjusting command; and the control module is used for receiving the adjusting command sent by the comparison module and controlling the radiation heating device to change the radiation heating temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of heat energy treatment, and more particularly to a combined heat and power generation and convection radiation coupled baking system. Background Art

[0002] Agricultural products generally have the characteristics of high water content, strong seasonality, easy to rot and deteriorate, need post-processing, and large production volume. The purpose of baking and drying agricultural products is to store them for a long time without destroying their nutrients. By drying, a certain amount of water is removed and the concentration of soluble substances is increased to a level that is difficult for microorganisms to use.

[0003] At present, baking and drying equipment has the problems of large heat loss, low thermal efficiency, and high energy consumption. Fuel-heated equipment also has the problem of smoke pollution. Therefore, it is necessary to design a baking and drying system with high thermal efficiency, fast baking and drying speed, and environmental protection and no pollution. Summary of the invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide a combined heat and power generation and convection-radiation coupled baking system to overcome the above-mentioned defects in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A combined heat and power generation and convection radiation coupled baking system, comprising a waste heat heating device, a radiation heating device and a controller, wherein a waste heat temperature sensor is arranged in the waste heat heating device;

[0007] The controller is preset with a database, and the database is preset with several groups of radiation information, the radiation information includes radiation power and radiation temperature, the radiation power reflects the motion power of the radiation heating device, the radiation temperature reflects the heating temperature of the radiation heating device, and the radiation power and the radiation temperature correspond one to one;

[0008] The controller also includes an acquisition module, a comparison module and a control module;

[0009] The acquisition module is used to obtain the residual heat temperature detected by the residual heat temperature sensor, and the residual heat temperature reflects the actual temperature of the residual heat entering the baking system;

[0010] The comparison module obtains the required temperature information sent externally, obtains the waste heat temperature in the acquisition module, compares the required temperature information and the waste heat temperature, obtains the temperature difference, obtains the corresponding radiation power in the database according to the temperature difference, obtains the radiation power, and issues an adjustment command;

[0011] The control module is used to receive the adjustment command issued by the comparison module and control the radiation heating device to change the radiation heating temperature.

[0012] Preferably, the heating device comprises a combustion furnace, a hot air cavity arranged above the combustion furnace, a fuel feeding mechanism arranged on the combustion furnace, an air intake mechanism arranged on the hot air cavity, a ventilation mechanism arranged on the hot air cavity, a heat dissipation pipeline connected to the ventilation mechanism, and a fume purification mechanism arranged on the combustion furnace;

[0013] The baking room is arranged above the heat dissipation pipeline, and a plurality of heat radiation through holes are opened at the bottom of the baking room;

[0014] The baking room is provided with a hot air circulation pipeline, one end of which is connected to the inside of the baking room, and the other end of which is connected to the air intake mechanism on the hot air cavity;

[0015] The combustion furnace comprises an air chamber and a combustion chamber, wherein the air chamber and the combustion chamber are separated by a partition, a mesh hole is opened in the middle of the partition, a one-way air intake mechanism is arranged on the side wall of the air chamber, an igniter is arranged in the air chamber, and the igniter is located directly below the mesh hole of the partition;

[0016] The air intake mechanism includes an air intake port and a suction fan, and the suction fan is connected to the hot air circulation pipeline;

[0017] The ventilation mechanism comprises a vent and a ventilation duct, and the ventilation duct is communicated with the heat dissipation pipeline;

[0018] The heat dissipation pipeline is a coiled pipeline with a plurality of air diffusion holes;

[0019] The heat dissipation pipeline is laid underground, and a heat reflection layer and a heat insulation layer are provided under the heat dissipation pipeline;

[0020] The smoke purification mechanism comprises a smoke exhaust pipe and a smoke purification pool, one end of the smoke exhaust pipe is connected to the combustion furnace, and the other end is connected to the smoke purification pool;

[0021] The top of the flue gas purification pool is open, and a flue gas circulation pipeline is connected to the opening, and the flue gas circulation pipeline is communicated with the ventilation pipeline.

[0022] Preferably, the fuel feeding mechanism includes a feeding pipe obliquely arranged on the side wall of the combustion furnace, a first feeding door arranged at the upper end of the feeding pipe, and a second feeding door arranged at the connection between the feeding pipe and the combustion furnace.

[0023] Preferably, the upper end of the first feed door is movably connected to the wall of the feed pipe.

[0024] Preferably, the upper end of the second feed door is movably connected to the side wall of the combustion furnace.

[0025] Preferably, a dust filter plate is provided at the connection between the hot air circulation duct and the baking room, and the dust filter plate is detachable.

[0026] Preferably, the baking room is provided with a plurality of baking racks, the baking racks are provided with storage plates, and the storage plates are detachable.

[0027] Preferably, the baking rack is movable.

[0028] Preferably, the storage plate is a mesh structure.

[0029] Preferably, a smoke exhaust machine is provided between the smoke exhaust pipe and the combustion chamber.

[0030] The beneficial effects of the present invention are as follows: the present invention heats the air, passes the hot air into the baking room, heats the agricultural products by the flow of the hot air, and thus achieves baking and drying. This method dries the agricultural products by the two effects of heating and the flow of air, so the drying efficiency is greatly improved; the present invention circulates the used hot air and heats it before passing it into the baking room again, making full use of the waste heat of the circulating gas, greatly improving the thermal efficiency and reducing the energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is the overall structure diagram of the present invention;

[0032] Figure 2 It is the internal structure diagram of the present invention.

[0033] Figure markings: 1-heating device, 2-baking room, 3-combustion furnace, 4-hot air cavity, 5-fuel feeding mechanism, 6-air intake mechanism, 7-ventilation mechanism, 8-heat dissipation pipeline, 9-smoke purification mechanism, 10-heat radiation through hole, 11-hot air circulation pipeline, 12-suction fan, 13-air vent, 14-ventilation pipeline, 15-smoke exhaust pipe, 16-smoke purification pool, 17-dust filter plate, 18-baking rack, 19-smoke exhaust fan, 20-smoke circulation pipeline, 21-heat reflection layer, 22-insulating layer, 301-air chamber, 302-combustion chamber, 303-partition, 304-one-way air intake mechanism, 305-igniter, 501-feeding pipeline, 502-first feed door, 503-second feed door, 181-storage plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0038] A combined heat and power generation and convection radiation coupled baking system, comprising a waste heat heating device, a radiation heating device and a controller, wherein a waste heat temperature sensor is arranged in the waste heat heating device;

[0039] The controller is preset with a database, and the database is preset with several groups of radiation information, the radiation information includes radiation power and radiation temperature, the radiation power reflects the motion power of the radiation heating device, the radiation temperature reflects the heating temperature of the radiation heating device, and the radiation power and the radiation temperature correspond one to one;

[0040] The controller also includes an acquisition module, a comparison module and a control module;

[0041] The acquisition module is used to obtain the residual heat temperature detected by the residual heat temperature sensor, and the residual heat temperature reflects the actual temperature of the residual heat entering the baking system;

[0042] The comparison module obtains the required temperature information sent externally, obtains the waste heat temperature in the acquisition module, compares the required temperature information and the waste heat temperature, obtains the temperature difference, obtains the corresponding radiation power in the database according to the temperature difference, obtains the radiation power, and issues an adjustment command;

[0043] The control module is used to receive the adjustment command issued by the comparison module and control the radiation heating device to change the radiation heating temperature.

[0044] like Figure 1-2As shown, a combined heat and power generation and convection radiation coupled baking system includes a heating device 1 and a baking room 2, wherein the heating device 1 includes a combustion furnace 3, a hot air cavity 4 arranged above the combustion furnace 3, a fuel feeding mechanism 5 arranged on the combustion furnace 3, an air intake mechanism 6 arranged on the hot air cavity 4, a ventilation mechanism 7 arranged on the hot air cavity 4, a heat dissipation pipeline 8 connected to the ventilation mechanism 7, and a flue gas purification mechanism 9 arranged on the combustion furnace 3.

[0045] The baking room 2 is arranged above the heat dissipation pipeline 8 , and a plurality of heat radiation through holes 10 are opened at the bottom of the baking room 2 .

[0046] The baking room 2 is provided with a hot air circulation pipeline 11 , one end of which is communicated with the interior of the baking room 2 , and the other end of which is communicated with the air intake mechanism 6 on the hot air cavity 4 .

[0047] The combustion furnace 3 includes an air chamber 301 and a combustion chamber 302, and the air chamber 301 and the combustion chamber 302 are separated by a partition 303, and a mesh is opened in the middle of the partition 303. A one-way air intake mechanism 304 is provided on the side wall of the air chamber 301, and an igniter 305 is provided in the air chamber 301, and the igniter 305 is located directly below the mesh of the partition 303.

[0048] The air intake mechanism 6 includes an air intake port and a suction fan 12 , and the suction fan 12 is connected to the hot air circulation pipeline 11 .

[0049] The ventilation mechanism 7 includes a vent 13 and a ventilation pipe 14 , and the ventilation pipe 14 is connected to the heat dissipation pipeline 8 .

[0050] The heat dissipation pipeline 8 is a coiled pipeline with a plurality of air diffusion holes.

[0051] The heat dissipation pipeline 8 is laid underground, and a heat reflection layer 21 and a heat insulation layer 22 are provided under the heat dissipation pipeline 6 .

[0052] The flue gas purification mechanism 9 includes a smoke exhaust pipe 15 and a smoke purification pool 16 . One end of the smoke exhaust pipe 15 is connected to the combustion furnace 3 , and the other end is connected to the smoke purification pool 16 .

[0053] The top of the flue gas purification pool 16 is open, and a flue gas circulation pipe 20 is connected to the opening, and the flue gas circulation pipe 20 is in communication with the ventilation pipe 14 .

[0054] In this embodiment, the fuel feeding mechanism 5 includes a feeding pipe 501 obliquely arranged on the side wall of the combustion furnace 3, a first feeding door 502 arranged at the upper end of the feeding pipe 501, and a second feeding door 503 arranged at the connection between the feeding pipe 501 and the combustion furnace 3.

[0055] In this embodiment, the upper end of the first feed door 502 is movably connected to the wall of the feed pipe 501 .

[0056] In this embodiment, the upper end of the second feed door 503 is movably connected to the side wall of the combustion furnace 3.

[0057] In this embodiment, a dust filter plate 17 is provided at the connection between the hot air circulation duct 11 and the baking room 2, and the dust filter plate 17 is detachable.

[0058] In this embodiment, a plurality of baking racks 18 are provided in the baking room 2. The baking racks 18 are provided with a storage plate 181, and the storage plate 181 is detachable.

[0059] In this embodiment, the baking rack 18 is movable.

[0060] In this embodiment, the storage plate 181 is a mesh structure.

[0061] In this embodiment, a smoke exhaust machine 19 is provided between the smoke exhaust pipe 15 and the combustion chamber 302 .

[0062] In this embodiment, the flue gas purification pool 16 is filled with water.

[0063] When the present invention is used, the baking room 2 is first opened, the baking rack 18 is moved out of the baking room 2, the agricultural products to be baked are spread flat on the placing plate 181, and then the baking rack 18 is moved into the baking room 2, and the baking room 2 is closed;

[0064] The fuel enters the combustion chamber 302 from the feed pipe 501, and the igniter 305 ignites the fuel. The oxygen in the air chamber 301 is consumed during the combustion of the fuel, and the air pressure in the air chamber 301 decreases. The external air enters the air chamber 301 from the one-way air intake mechanism 304 to replenish the air chamber 301.

[0065] After the fuel is consumed to a certain extent, the fuel can be added. The fuel feeding mechanism 5 of the present invention is provided with a first feeding door 502 and a second feeding door 503. The upper ends of the two feeding doors are movably connected to the feeding pipe 501 and the side wall of the combustion furnace 3 respectively. In a natural state, the two feeding doors are perpendicular to the ground and close the feeding pipe 501 and the combustion furnace 3. When feeding, the fuel pushes the first feeding door 502 and the second feeding door 503 open in turn. Under the action of gravity, the two feeding doors are closed in turn. Therefore, when feeding, one of the two feeding doors is always in a closed state, thereby ensuring that the smoke generated when the fuel is burned will not be discharged from the feeding door;

[0066] During the fuel combustion process, the air in the hot air cavity 4 is heated, and the hot air enters the heat dissipation pipeline 8 through the ventilation pipe 14. A heat reflection layer 21 and a heat insulation layer 22 are provided under the heat dissipation pipeline, which can effectively prevent downward radiation heat transfer and improve heat utilization;

[0067] The coiled heat dissipation pipeline 8 is provided with air diffusion holes, and the hot air is dispersed from the air diffusion holes and enters the baking room 2 through the heat radiation through holes 10 at the bottom of the baking room 2; the hot air flows in the baking room 2, heats the agricultural products, and takes away the emitted moisture;

[0068] Under the action of the suction fan 12, the hot air enters the hot air cavity 4 again through the hot air circulation pipe 11, is heated again, and then enters the baking room 2 again through the ventilation pipe 14 and the heat dissipation pipeline 8. The waste heat of the circulating gas is fully utilized, which greatly improves the thermal efficiency and reduces energy consumption.

[0069] The flue gas generated by the combustion of fuel is passed through the exhaust 19 and the exhaust pipe 15 into the flue gas purification pool 16, where it is purified by water. The purified flue gas then passes through the flue gas circulation pipe 20 and enters the ventilation pipe 14, which, on the one hand, avoids direct emission of flue gas to cause environmental pollution, and on the other hand, the heat of the flue gas is also utilized, further improving thermal efficiency and reducing energy consumption;

[0070] A dust filter plate 17 is provided at the connection between the hot air circulation duct 11 and the baking room 2 , and the air in the baking room 2 is effectively filtered for dust generated during the baking process of agricultural products before entering the hot air circulation duct 11 .

[0071] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A combined heat and power generation and convection radiation coupled baking system, characterized in that: It comprises a waste heat heating device, a radiation heating device and a controller, wherein a waste heat temperature sensor is arranged in the waste heat heating device; The controller is preset with a database, and the database is preset with several groups of radiation information, the radiation information includes radiation power and radiation temperature, the radiation power reflects the motion power of the radiation heating device, the radiation temperature reflects the heating temperature of the radiation heating device, and the radiation power and the radiation temperature correspond one to one; The controller also includes an acquisition module, a comparison module and a control module; The acquisition module is used to obtain the residual heat temperature detected by the residual heat temperature sensor, and the residual heat temperature reflects the actual temperature of the residual heat entering the baking system; The comparison module obtains the required temperature information sent externally, obtains the waste heat temperature in the acquisition module, compares the required temperature information and the waste heat temperature, obtains the temperature difference, obtains the corresponding radiation power in the database according to the temperature difference, obtains the radiation power, and issues an adjustment command; The control module is used to receive the adjustment command issued by the comparison module and control the radiation heating device to change the radiation heating temperature.

2. The combined heat and power generation and convection-radiation coupled baking system according to claim 1 comprises a heating device (1) and a baking room (2), characterized in that: The heat supply device (1) comprises a combustion furnace (3), a hot air cavity (4) arranged above the combustion furnace (3), a fuel feeding mechanism (5) arranged on the combustion furnace (3), an air intake mechanism (6) arranged on the hot air cavity (4), a ventilation mechanism (7) arranged on the hot air cavity (4), a heat dissipation pipeline (8) connected to the ventilation mechanism (7), and a fume purification mechanism (9) arranged on the combustion furnace (3); The baking room (2) is arranged above the heat dissipation pipeline (8), and a plurality of heat radiation through holes (10) are opened at the bottom of the baking room (2); The baking room (2) is provided with a hot air circulation pipeline (11), one end of the hot air circulation pipeline (11) is connected to the inside of the baking room (2), and the other end is connected to the air intake mechanism (6) on the hot air cavity (4); The combustion furnace (3) comprises an air chamber (301) and a combustion chamber (302), wherein the air chamber (301) and the combustion chamber (302) are separated by a partition (303), a mesh hole is provided in the middle of the partition (303), a one-way air intake mechanism (304) is provided on the side wall of the air chamber (301), an igniter (305) is provided in the air chamber (301), and the igniter (305) is located directly below the mesh hole of the partition (303); The air intake mechanism (6) comprises an air intake port and a suction fan (12), and the suction fan (12) is connected to the hot air circulation pipeline (11); The ventilation mechanism (7) comprises a vent (13) and a ventilation pipe (14), and the ventilation pipe (14) is connected to the heat dissipation pipeline (8); The heat dissipation pipeline (8) is a coiled pipeline with a plurality of air diffusion holes; The heat dissipation pipeline (8) is laid underground, and a heat reflection layer (21) and a heat insulation layer (22) are provided under the heat dissipation pipeline (8); The smoke purification mechanism (9) comprises a smoke exhaust pipe (15) and a smoke purification pool (16); one end of the smoke exhaust pipe (15) is connected to the combustion furnace (3), and the other end is connected to the smoke purification pool (16); The top of the flue gas purification pool (16) is open, and a flue gas circulation pipe (20) is connected to the opening, and the flue gas circulation pipe (20) is in communication with the ventilation pipe (14).

3. A combined heat and power generation and convection radiation coupled baking system as claimed in claim 2, characterized in that: The fuel feeding mechanism (5) comprises a feeding pipe (501) obliquely arranged on the side wall of the combustion furnace (3), a first feeding door (502) arranged at the upper end of the feeding pipe (501), and a second feeding door (503) arranged at the connection between the feeding pipe (501) and the combustion furnace (3).

4. A combined heat and power generation and convection radiation coupled baking system as claimed in claim 3, characterized in that: The upper end of the first feed door (502) is movably connected to the wall of the feed pipe (501).

5. The combined heat and power generation and convection radiation coupled baking system according to claim 3, characterized in that: The upper end of the second feed door (503) is movably connected to the side wall of the combustion furnace (3).

6. A combined heat and power generation and convection radiation coupled baking system as claimed in claim 2, characterized in that: A dust filter plate (17) is provided at the connection between the hot air circulation pipeline (11) and the baking room (2), and the dust filter plate (17) is detachable.

7. A combined heat and power generation and convection radiation coupled baking system as claimed in claim 2, characterized in that: A plurality of groups of baking racks (18) are arranged in the baking room (2), and a storage plate (181) is arranged on the baking rack (18), and the storage plate (181) is detachable.

8. A combined heat and power generation and convection radiation coupled baking system as claimed in claim 7, characterized in that: The baking rack (18) is movable.

9. A combined heat and power generation and convection radiation coupled baking system as claimed in claim 7, characterized in that: The storage plate (181) is a mesh structure.

10. The combined heat and power generation and convection radiation coupled baking system according to claim 2, characterized in that: A smoke exhaust machine (19) is provided between the smoke exhaust pipe (15) and the combustion chamber (302).

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