Material heating system
Through the multimodal heating system integrating microwave, infrared and humidity atomization, the problems of low heating efficiency and difficult temperature and humidity control in traditional steam heating technology are solved, and efficient and accurate material heating and temperature and humidity control are achieved, which is suitable for compact production line layout and reduces energy consumption.
Patent Information
- Application Number
- CN202520596881.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Traditional steam heating technology has problems such as low heating efficiency, difficulty in temperature and humidity control and large equipment space in food processing, medicinal materials processing and deep processing of agricultural and sideline products, which is difficult to meet the needs of efficient and continuous production.
A multimodal heating system integrating microwave, infrared and humidity atomization is adopted to directly stimulate the internal molecular movement of the material through microwaves, infrared directional radiation increases the surface temperature, combined with humidity atomization conduction, comprehensive and efficient heating is achieved, and heating parameters are dynamically adjusted through the control module to achieve accurate control of temperature and humidity.
It significantly improves heating efficiency, shortens the heating cycle, reduces the equipment footprint, adapts to the compact production line layout, and achieves precise temperature and humidity control, reducing energy consumption.
Smart Images
Figure CN222840477U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating equipment, in particular to a material heating system. Background Art
[0002] In the fields of food processing, medicinal material processing and deep processing of agricultural and sideline products, the softening and shaping of materials often need to be achieved through the synergistic effect of moisture and heat. Usually before the pressing process, the product needs to be quickly and evenly heated to a specific temperature (such as 80-90°C), while maintaining a humidity environment of 60%-80% to ensure the flexibility of the surface and the stability of the internal fiber structure. Traditional processes generally use steam heating technology, which relies on boilers to generate high-temperature steam and transport it to the heating box through pipes to humidify and heat the material. However, this technology has the following significant defects: 1) Low heating efficiency, steam heating relies on latent heat release (phase change heat transfer), and requires long-term contact with the material to achieve sufficient heat penetration, resulting in a prolonged heating cycle. The material conveyor belt has a long journey through the heating box, which makes the equipment occupy a lot of space, and the production line layout is poorly flexible, making it difficult to meet the needs of efficient and continuous production; 2) Temperature and humidity control is difficult, and the process of steam condensation to release latent heat is difficult to adjust in real time, which can easily cause the surface of the material to be over-humidified or locally overheated. Steam humidification needs to be indirectly controlled by increasing or decreasing the steam flow, and humidity regulation is delayed. Utility Model Content
[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a material heating system to achieve coordinated optimization of heating efficiency, humidity control, energy consumption and equipment compactness.
[0004] The technical solution adopted by the utility model is as follows: a material heating system, comprising a heating box and a material conveying mechanism passing through the heating box, the front and rear ends of the heating box are respectively connected to shielded heat preservation transition cabins, the material conveying mechanism enters and exits the heating box through the shielded heat preservation transition cabin, and the heating box is equipped with a microwave heating component, an infrared heating component and a moist heat heating component;
[0005] The microwave heating components are provided in multiple groups, and the multiple groups of microwave heating components are respectively and evenly arranged on the top wall and / or the bottom plate of the heating box;
[0006] The infrared heating assembly comprises a plurality of infrared heating tubes arranged in the inner cavity of the heating box and evenly distributed along the direction of the material conveying mechanism;
[0007] The wet heat heating component includes a convection heat exchange mechanism and a hot water atomization mechanism. The convection heat exchange mechanism includes more than two groups of forced convection fans. The air inlet and air outlet ends of the forced convection fans are respectively connected to the opposite sides of the inner cavity of the heating box, and the air supply directions of two adjacent groups of forced convection fans are opposite. The hot water atomization mechanism includes a heating water tank, a water pump, a delivery pipe, and an atomizing nozzle. The heating water tank is used to heat and store hot water. The water inlet end of the water pump is connected to the heating water tank, and the water outlet end is respectively connected to the air supply pipes connected to the forced convection fans through delivery pipes, and the atomizing nozzle is connected to the end of the delivery pipe.
[0008] Furthermore, left and right side air ducts are separated by mesh plates on both sides of the material conveying mechanism in the inner cavity of the heating box, and the air inlet and air outlet of the forced convection fan are respectively connected to the side air ducts.
[0009] Furthermore, an air inlet end of the forced convection fan is connected to the air duct and extends to the lower part of the side air duct.
[0010] Furthermore, a condensate collecting plate is provided in the side air duct, and the condensate collecting plate is inclined from the front and rear sides of the heating box to the middle, and is connected with a drainage pipe in the middle.
[0011] Furthermore, the heating box is covered with a heating box top cover, and ventilation holes are opened on the heating box top cover.
[0012] Furthermore, it also includes two electric control boxes, which are respectively installed on the shielded and thermally insulated transition cabins at both ends of the heating box.
[0013] Furthermore, a heat exhaust fan is fixedly installed on the top of the heating box, and the heat exhaust fan is used to discharge excess heat in the heating box.
[0014] Furthermore, it also includes a control module, in which a temperature sensor and a humidity sensor are arranged in the heating box. The control module dynamically adjusts the microwave power, infrared intensity, atomization amount, forced convection fan air supply rate and heat exhaust fan exhaust rate according to the data of the temperature sensor and the humidity sensor to adjust the temperature and humidity in the heating box.
[0015] The beneficial effects of the utility model are as follows: the material heating system of the utility model innovatively integrates microwave body heating, infrared radiation enhancement and wet heat atomization convection technology, directly stimulates the internal molecular movement of the material through microwaves, increases the surface temperature through infrared directional radiation, and combines with atomized hot water wet heat conduction to greatly improve the comprehensive thermal efficiency, with high heating efficiency and short heating cycle, which greatly reduces the equipment footprint and is suitable for compact production line layout; through the linkage adjustment of microwave power, infrared intensity and atomization amount, precise control of temperature and humidity can be achieved; hot water atomization (about 90°C) is used instead of steam to avoid the loss of latent heat of water vaporization, significantly reduce energy consumption, and make temperature and humidity control more precise. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the main structure of the utility model.
[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.
[0018] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.
[0019] Figure 4 It is a schematic diagram of the overall appearance of the utility model.
[0020] In the figure: material conveying mechanism 100, heating box 200, mesh plate 201, side air duct 202, drain pipe 203, condensate collecting plate 204, shielded and thermally insulated transition cabin 300, microwave heating assembly 400, moist heat heating assembly 500, forced convection fan 501, air supply duct 502, heating water tank 503, water pump 504, conveying duct 505, induced draft duct 506, heat exhaust fan 600, infrared heating assembly 700, heating box top cover 800, ventilation hole 801, electric control box 900. DETAILED DESCRIPTION
[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and carefully below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.
[0022] like Figure 1-Figure 3 As shown, a material heating system provided in this embodiment includes a heating box 200 and a material conveying mechanism 100 passing through the heating box 200. In this embodiment, the material conveying mechanism 100 includes two symmetrically arranged conveying tracks, and the material tray carrying the material moves along the conveying tracks through the heating box 200, thereby heating the material.
[0023] The front and rear ends of the heating box 200 are respectively connected to a shielded heat preservation transition cabin 300, which is used to block heat dissipation and electromagnetic leakage. The material conveying mechanism 100 enters and exits the heating box 200 through the shielded heat preservation transition cabin 300. The heating box 200 is equipped with a microwave heating component 400, an infrared heating component 700 and a moist heat heating component 500 to achieve a comprehensive and efficient heating effect.
[0024] There are multiple groups of microwave heating components 400, which are evenly arranged on the top wall and the bottom plate of the heating box 200 to ensure that the material can evenly and quickly absorb microwave energy for heating during the transportation process.
[0025] The infrared heating assembly 700 includes a plurality of infrared heating tubes arranged in the inner cavity of the heating box 200 and evenly distributed along the material conveying mechanism 100, and directly heats the material by radiating infrared rays, thereby enhancing the uniformity and efficiency of heating.
[0026] The moist heat heating assembly 500 includes a convection heat exchange mechanism and a hot water atomization mechanism. The convection heat exchange mechanism includes more than two groups of forced convection fans 501, the air inlet and air outlet of the forced convection fans 501 are respectively connected to the opposite sides of the inner cavity of the heating box 200, and the air supply directions of the two adjacent groups of forced convection fans 501 are opposite. In this embodiment, an even number of forced convection fans 501 are configured, and these fans are organized in pairs, that is, they are arranged in groups of two to achieve effective circulation of air in the heating box.
[0027] The hot water atomization mechanism includes a heating water tank 503, a water pump 504, a delivery pipe 505, and an atomizing nozzle. The heating water tank 503 is used to heat (about 90°C) and store hot water. The water inlet end of the water pump 504 is connected to the heating water tank 503, and the water outlet end is connected to the air supply pipes 502 connected to the forced convection fan 501 through the delivery pipe 505, and the atomizing nozzle is connected to the end of the delivery pipe 505. The hot water is atomized into tiny water droplets through the atomizing nozzle, and is evenly distributed into the heating box along with the air flow of the convection heat exchange mechanism.
[0028] The above technical solution provides a multimodal heating system integrating microwave, infrared and moist heat atomization, which is used for precise coordinated control of temperature and humidity during continuous material processing.
[0029] As a preferred solution of the above embodiment, the left and right side air ducts 202 are separated by mesh plates 201 on both sides of the material conveying mechanism 100 in the inner cavity of the heating box 200, and the air inlet and air outlet of the forced convection fan 501 are respectively connected to the side air ducts 202. When the forced convection fan 501 is running, it will inhale air from one side air duct 202, and then blow the air mixed with hot water atomized small water droplets into the other side air duct, thereby forming a forced convection cycle in the heating box. Through this forced convection method, heat can be more effectively transferred to the material on the material conveying mechanism, thereby improving the heating efficiency. At the same time, the design of the left and right side air ducts also makes the air flow more uniform. Furthermore, the air inlet end of the forced convection fan 501 is connected to the air duct 506 and extends to the lower part of the side air duct 202, which can ensure that the air is more evenly distributed in the entire heating box, thereby avoiding local overheating.
[0030] In order to solve the problem of condensation water that may be generated during the heating process, in this embodiment, a condensation water collection plate 204 is arranged in the side air duct 202. The condensation water collection plate 204 is inclined from the front and rear sides of the heating box 200 to the middle, so that the condensation water can flow along the collection plate to the middle part, and a drain pipe 203 is connected to the middle part to guide the collected condensation water out of the heating box.
[0031] In order to provide protection for the components installed on the top of the heating box 200, a heating box top cover 800 is provided on the heating box top cover 800, and ventilation holes 801 are opened on the heating box top cover 800. The opening of the ventilation holes 801 allows the hot air above the heating box to be discharged when necessary.
[0032] In this embodiment, two electric control boxes 900 are also included, and the two electric control boxes 900 are respectively installed on the shielded and heat-insulated transition cabins 300 at both ends of the heating box 200. The control box 900 is the core control component of the heating system. By installing the electric control box on the shielded and heat-insulated transition cabins at both ends of the heating box, the space at both ends of the heating box can be fully utilized, making the structure of the entire heating system more compact and reasonable.
[0033] In order to facilitate the adjustment of the temperature in the heating box 200, a heat exhaust fan 600 is fixedly installed on the top of the heating box 200, and the heat exhaust fan 600 is used to exhaust the excess heat in the heating box 200. During the heating process, when the temperature exceeds a preset range, the heat exhaust fan 600 is started to extract the hot air in the heating box, thereby reducing the internal temperature.
[0034] In order to realize the intelligent regulation and control of the whole heating system, the technical solution provided in this embodiment also includes a control module. A temperature sensor and a humidity sensor are arranged in the heating box 200. The control module dynamically adjusts the microwave power, infrared intensity, atomization amount, forced convection fan air supply rate and heat exhaust fan exhaust rate according to the data of the temperature sensor and the humidity sensor to adjust the temperature and humidity in the heating box 200. The control module can adopt existing mature technologies, such as microprocessor control, sensor data acquisition and processing, and algorithm control based on these data, which are technologies that have been developed for a long time and widely used.
[0035] With the help of the teachings in the foregoing description and the related drawings, a person skilled in the art will be able to think of many modifications and other embodiments of the present invention. Therefore, it is to be understood that the present invention is not limited to the specific embodiments disclosed, and modifications and other embodiments are considered to be included within the scope of the appended claims. Although specific terms are used herein, they are used only in a general and descriptive sense and not for limitation.
Claims
1. A material heating system, comprising a heating box (200) and a material conveying mechanism (100) passing through the heating box (200), characterized in that: The front and rear ends of the heating box (200) are respectively connected to a shielded heat-insulating transition chamber (300); the material conveying mechanism (100) enters and exits the heating box (200) through the shielded heat-insulating transition chamber (300); and a microwave heating component (400), an infrared heating component (700) and a moist heat heating component (500) are installed on the heating box (200); The microwave heating components (400) are provided in multiple groups, and the multiple groups of microwave heating components (400) are respectively and evenly arranged on the top wall and / or the bottom plate of the heating box (200); The infrared heating assembly (700) comprises a plurality of infrared heating tubes arranged in the inner cavity of the heating box (200) and evenly distributed along the direction of the material conveying mechanism (100); The wet heat heating assembly (500) comprises a convection heat exchange mechanism and a hot water atomization mechanism. The convection heat exchange mechanism comprises more than two groups of forced convection fans (501). The air inlet end and the air outlet end of the forced convection fans (501) are respectively connected to the opposite sides of the inner cavity of the heating box (200), and the air supply directions of the two adjacent groups of forced convection fans (501) are opposite. The hot water atomization mechanism comprises a heating water tank (503), a water pump (504), a delivery pipe (505), and an atomization nozzle. The heating water tank (503) is used to heat and store hot water. The water inlet end of the water pump (504) is connected to the heating water tank (503), and the water outlet end is respectively connected to the air supply pipes (502) connected to the forced convection fans (501) through the delivery pipes (505), and the atomization nozzle is connected to the end of the delivery pipe (505).
2. A material heating system according to claim 1, characterized in that: Left and right side air ducts (202) are separated by mesh plates (201) on both sides of the material conveying mechanism (100) in the inner cavity of the heating box (200), and the air inlet and air outlet of the forced convection fan (501) are respectively connected to the side air ducts (202).
3. A material heating system according to claim 2, characterized in that: The air inlet end of the forced convection fan (501) is connected to the air induction pipe (506) and extends to the lower part of the side air duct (202).
4. A material heating system according to claim 2, characterized in that: A condensate collecting plate (204) is provided in the side air duct (202); the condensate collecting plate (204) is arranged obliquely from the front and rear sides of the heating box (200) toward the middle, and is butted against a drainage pipe (203) in the middle.
5. A material heating system according to claim 1, characterized in that: The heating box (200) is covered with a heating box top cover (800), and a ventilation hole (801) is provided on the heating box top cover (800).
6. A material heating system according to claim 1, characterized in that: It also includes two electric control boxes (900), which are respectively mounted on the shielding and heat-insulating transition cabins (300) at both ends of the heating box (200).
7. A material heating system according to any one of claims 1 to 6, characterized in that: A heat exhaust fan (600) is fixedly installed on the top of the heating box (200), and the heat exhaust fan (600) is used to exhaust excess heat in the heating box (200).
8. A material heating system according to claim 7, characterized in that: It also includes a control module, wherein a temperature sensor and a humidity sensor are arranged in the heating box (200), and the control module dynamically adjusts the microwave power, infrared intensity, atomization amount, forced convection fan air supply rate and heat exhaust fan exhaust rate according to data from the temperature sensor and the humidity sensor to adjust the temperature and humidity in the heating box (200).