A grain dryer heat energy generating device

Abstract

The application discloses a kind of grain dryer heat energy generating device, belong to grain dryer technical field, including air chamber, air flow deflector, heat energy generator, automatic control component;The air chamber is the side and top open lying rectangular frame body made of sheet metal;The left and right sides of the air flow deflector are through, the left side of the air flow deflector is connected with the air inlet side of the lower body of the grain dryer, and the right side of the air flow deflector is fixedly connected with the side of the air chamber side open lower part, and the heat energy generator is fixedly connected above the air flow deflector.The grain dryer heat energy generating device of the application is zero emission, pollution-free, protects natural ecological environment, ensures food safety, has simple structure, is safe and reliable, has less energy consumption, low drying cost, high degree of automation and remarkable energy-saving effect.

Description

Technical Field

[0001] This invention relates to the field of grain dryer technology, and in particular to a heat energy generating device for a grain dryer. Background Technology

[0002] With the rapid development of science and technology, protecting the ecological environment has become an important indicator of technological development. The rational use of energy can reduce environmental pollution and save costs. Nowadays, the earth's energy resources are becoming increasingly scarce. Therefore, developing and utilizing new energy sources is necessary to meet the needs of modern technological development. Existing grain dryers all burn non-renewable energy sources such as coal and oil and gas. The hot air generated by the combustion of coal and oil and gas is drawn into the drying section of the dryer by an induced draft fan to heat and dry the grain. This method of grain drying by burning coal, oil and gas and other energy sources results in the waste of non-renewable energy. Moreover, the exhaust gas and slag discharged from the combustion can easily cause environmental pollution and contamination of the grain during drying. The drying cost is relatively high. Therefore, it is imperative to develop and utilize clean thermal energy for grain dryers to reduce emissions. Summary of the Invention

[0003] The purpose of this invention is to provide a heat energy generating device for a grain dryer to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides a heat energy generating device for a grain dryer, which is installed on the air inlet side of the lower body of the grain dryer and includes an air chamber, an air guide hood, a heat energy generator, and an automatic control component. The air chamber is a horizontally placed rectangular frame made of metal sheet with open sides and top. The air guide hood is open on both sides, with the left side connected to the air inlet side of the lower body of the grain dryer and the lower part of the right side fixedly connected to the open side of the air chamber. The heat energy generator is fixedly connected above the air guide hood.

[0005] Preferably, an arc-shaped guide plate is provided on the inner side of the open side wall of the air chamber, extending upward from the bottom to the top surface.

[0006] Preferably, the heat generator includes a housing, a temperature protector, electrical components, and a left side cover. The housing has four heating zones inside. The temperature protector and the electrical components are respectively arranged at equal distances in the cavity. The left side cover covers the opening end of the cavity.

[0007] Preferably, the shell is a horizontal rectangular box with open top and bottom surfaces, a cavity with a forward opening on the left side, and heat insulation cavities around the perimeter of the other three sides.

[0008] Preferably, each heating zone has a plurality of heating elements evenly arranged thereon, and the heating elements in each heating zone are electrically connected to the automatic control component via the electrical components and are automatically controlled respectively.

[0009] Preferably, each of the heating zones is equipped with a temperature sensor.

[0010] Preferably, the heating element has a W-shaped structure, including a positive electrode, a negative electrode, and a heating element located between the positive electrode and the negative electrode.

[0011] Preferably, each of the heating elements is arranged parallel to the bottom surface of the housing at a certain angle.

[0012] Preferably, both the temperature protector and the temperature sensor are electrically connected to the automatic control component.

[0013] Therefore, the present invention employs the above-mentioned heat generation device for a grain dryer, which has the following beneficial effects: (1) The clean energy generated by converting electrical energy into heat energy has zero emissions and no pollution, which fully and effectively protects the natural ecological environment; it does not pollute the dried grain, ensuring the food safety of the grain; it has a simple structure, reasonable design, safety and reliability, and low energy consumption, saving non-renewable energy; the heat energy generating device has four heating zones, each of which is electrically connected to the automatic control component through electrical components and is automatically controlled. During operation, it can automatically control the heating of one or more heating zones according to the working conditions, better allocate energy utilization rate, and significantly improve the energy saving effect.

[0014] (2) The heating element is a W-shaped structure and is arranged parallel to the bottom surface of the shell at a certain angle to increase the contact area between the heating element and the air, so that the heating element heats up evenly, enhances the heating effect, and improves the heating efficiency.

[0015] (3) A temperature protector and electrical components are installed in the cavity with the left side of the housing facing forward. The airflow that enters this cavity towards the right side of the air guide can cover the airflow, which can cool the electrical components and temperature protector, extend their service life, and further improve safety performance.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a heat energy generating device for a grain dryer according to an embodiment of the present invention; Figure 2 This is a left view of a heat energy generating device for a grain dryer according to an embodiment of the present invention; Figure 3This is a top view of a heat generation device for a grain dryer according to an embodiment of the present invention; Figure 4 This is an electrical control schematic diagram of a heat energy generating device for a grain dryer according to an embodiment of the present invention; Figure Labels 1. Air chamber; 11. Arc-shaped guide plate; 2. Air guide hood; 3. Heat generator; 31. Shell; 311. Cavity; 312. Insulation cavity; 313. Heating zone; 32. Heating element; 33. Temperature sensor; 34. Temperature protector; 35. Electrical components; 36. Left side cover; 4. Automatic control components; 5. Grain dryer. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] Example like Figures 1-4 As shown, the present invention provides a heat energy generating device for a grain dryer, which is installed on the air inlet side of the lower body of the grain dryer 5. It includes an air chamber 1, an air guide hood 2, a heat energy generator 3, and an automatic control component 4. The air chamber 1 is a horizontal rectangular frame made of metal sheet with open sides and top. An arc-shaped guide plate 11 is provided on the inner side of the opposite side wall of the open side of the air chamber 1, extending upward from the bottom to the top. The left and right sides of the air guide hood 2 are connected. The left side of the air guide hood 2 is connected to the air inlet side of the lower body of the grain dryer 5, and the lower part of the right side of the air guide hood 2 is fixedly connected to the open side of the air chamber 1. The heat energy generator 3 is fixedly connected above the air guide hood 2.

[0021] The heat generator 3 includes a housing 31, heating elements 32, a temperature sensor 33, a temperature protector 34, electrical components 35, and a left side cover 36. The housing 31 is a horizontally placed rectangular box with open top and bottom surfaces. The left side has a cavity 311 with an opening to the front, and the other three sides have heat insulation cavities 312 around their perimeters. The housing 31 has four heating zones 313 inside, and each heating zone 313 has a number of heating elements 32 evenly arranged. The number of heating elements 32 in each heating zone 313 can be arranged differently according to the power required by the actual working conditions. Each heating zone 313 is equipped with a temperature sensor 33. The temperature protector 34 and electrical components 35 are arranged at equal intervals in the cavity 311, and the left side cover 36 covers the opening end of the cavity 311. The heating elements 32 in each heating zone 313 are electrically connected to the automatic control component 4 through the electrical components 35 and are automatically controlled respectively.

[0022] The heating element 32 has a W-shaped structure, including a positive electrode, a negative electrode, and a heating element located between the positive electrode and the negative electrode; each heating element 32 is arranged parallel to the bottom surface of the housing 31 at a certain angle.

[0023] Temperature protector 34 and temperature sensor 33 are both electrically connected to automatic control component 4.

[0024] The automatic control component 4 includes a housing, a controller, a relay control module, a parameter setting module, and a power supply module. The controller, relay control module, parameter setting module, and power supply module are all installed inside the housing, and the power supply module is electrically connected to both the controller and relay control module to provide operating power to the automatic control component 4. The parameter setting module is located on the outside of the housing, allowing operators to preset the target temperature and start / stop parameters for each heating zone 313 according to the drying conditions. The parameter setting module is electrically connected to the controller. Temperature sensor 33 and temperature protector 34 are electrically connected to the controller. Temperature sensor 33 collects the real-time temperature of each heating zone 313 and transmits the temperature signal to the controller. Temperature protector 34 detects over-temperature in the area where electrical components 35 are located and transmits a protection signal to the controller. The controller is electrically connected to the heating element 32 in each heating zone 313 through the relay control module. The relay control module is used to connect or disconnect the power supply circuit of the corresponding heating zone 313, thereby realizing independent start-stop control and power regulation of the heating element 32 in each heating zone 313. When the temperature sensor 33 detects that the temperature has reached the set value or the temperature protector 34 detects abnormal temperature rise, the controller controls the relay control module to disconnect the corresponding circuit to realize automatic temperature control and safety protection.

[0025] The cavity 311, which opens forward on the left side of the housing 31, faces the right side of the air guide shroud 2 and is within the range that the incoming air force can cover.

[0026] Both the housing 31 and the heating element 32 are made of stainless steel. Stainless steel has extremely high heat resistance, which further ensures the safety and reliability of the equipment.

[0027] Working Principle: Air intake is guided by the air chamber 1 and the air guide hood 2: the arc-shaped guide plate of the air chamber 1 guides the outside air to enter smoothly, reducing wind resistance; the air guide hood 2 connects the air chamber 1 to the dryer body, forming a closed air duct to prevent air loss and provide a path for hot air delivery. Heat energy is generated by the heat generator 3, whose shell 31 has hollowed-out top and bottom surfaces to facilitate heat transfer, and side insulation chambers 312 to reduce heat loss; the shell 31 is divided into four independent heating zones 313, each zone is arranged with W-shaped inclined electric heating elements 32 to increase the heat exchange area, and the power can be independently adjusted according to the working conditions. Temperature control is achieved by the automatic control component 4 in conjunction with the temperature sensor 33 and the temperature protector 34: the temperature sensor 33 detects the temperature of the heating zone 313 in real time, and the temperature protector 34 monitors the temperature of the area of ​​the electrical component 35, both of which transmit signals to the control component; the control component can independently control the start and stop and power of the electric heating elements 32 in each heating zone 313, and automatically cuts off the power when the temperature is abnormal, realizing a safe closed-loop control. In the hot air conveying process, outside air enters through the air chamber 1 and the guide hood, is heated into hot air by the electric heating element 32, and is then continuously sent into the dryer body to provide stable heat energy for grain drying.

[0028] Therefore, the present invention employs the above-mentioned heat generation device for a grain dryer, which can air-cool various electrical components and temperature protectors, extend their service life, and further improve safety performance.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A heat energy generating device for a grain dryer, installed on the air inlet side of the lower body of the grain dryer, characterized in that: It includes a wind chamber, an air guide hood, a heat generator, and an automatic control assembly; the wind chamber is a horizontally placed rectangular frame made of metal sheet with open sides and top; the air guide hood is open on both sides, the left side of the air guide hood is connected to the air inlet side of the lower body of the grain dryer, the lower part of the right side of the air guide hood is fixedly connected to the open side of the wind chamber, and the heat generator is fixedly connected above the air guide hood.

2. The heat energy generating device for a grain dryer according to claim 1, characterized in that: An arc-shaped guide plate is provided on the inner side of the open side wall of the air chamber, extending upward from the bottom to the top surface.

3. The heat energy generating device for a grain dryer according to claim 1, characterized in that: The heat generator includes a housing, a temperature protector, electrical components, and a left side cover. The housing has four heating zones inside. The temperature protector and electrical components are arranged at equal intervals in the cavity. The left side cover closes to the opening of the cavity.

4. The heat energy generating device for a grain dryer according to claim 1, characterized in that: The shell is a horizontal rectangular box with open top and bottom surfaces, a cavity with a forward opening on the left side, and heat insulation cavities around the perimeter of the other three sides.

5. The heat energy generating device for a grain dryer according to claim 4, characterized in that: Each heating zone has a number of heating elements evenly arranged, and each heating element in each heating zone is electrically connected to the automatic control component via the electrical components and is automatically controlled.

6. The heat energy generating device for a grain dryer according to claim 4, characterized in that: Each of the heating zones is equipped with a temperature sensor.

7. The heat energy generating device for a grain dryer according to claim 5, characterized in that: The heating element has a W-shaped structure and includes a positive electrode, a negative electrode, and a heating element located between the positive electrode and the negative electrode.

8. The heat energy generating device for a grain dryer according to claim 7, characterized in that: Each of the heating elements is arranged parallel to the bottom surface of the housing at a certain angle.

9. A heat energy generating device for a grain dryer according to claim 6, characterized in that: The temperature protector and the temperature sensor are both electrically connected to the automatic control component.

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