Energy-saving heat energy recovery tunnel type microwave equipment for oil plants
By combining components such as heat insulation panels, heat collection covers, and dehumidification devices in tunnel microwave equipment, the problems of energy waste and insufficient equipment stability are solved, and heat energy recovery and utilization and efficient equipment operation are realized.
Patent Information
- Application Number
- CN202511689828.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2025-12-23
AI Technical Summary
Existing tunnel microwave equipment suffers from energy waste and insufficient equipment stability in oil processing, failing to effectively recover the heat energy emitted by oil and devices, resulting in severe heat loss and low energy utilization.
Design an energy-saving tunnel-type microwave device for oil recovery, which employs heat insulation panels, heat collection covers, dehumidification devices, heat extraction pipes, heat exchangers, and energy feeding components to improve energy utilization and equipment stability through heat recovery and insulation measures.
It significantly improves the energy efficiency of microwave equipment, reduces operating energy consumption, extends the service life of key components, and improves the uniformity of oil heating and processing efficiency.
Smart Images
Figure CN121194359A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of oil microwave processing equipment, and particularly relates to an energy-saving heat recovery tunnel microwave device for oil. BACKGROUND
[0002] The tunnel microwave device is the mainstream equipment in the field of oil heat treatment processing at present, and is widely used in the oil processing scene due to the advantages of high temperature control precision and continuous production. On the one hand, when the device is working, the heated oil continuously discharges a large amount of hot and humid air, and the microwave heating box, microwave magnetron, transformer and other core components also emit a large amount of heat energy during operation. The heating box of the existing device does not have effective heat insulation measures, and the high temperature formed in the box due to heating is directly lost to the outside, causing the working environment temperature of the magnetron, transformer and other key components to rise significantly, thereby significantly shortening the service life of these components and significantly reducing their working efficiency.
[0003] On the other hand, the heat energy carried by the hot and humid air discharged by the oil, and the heat energy emitted by the components and the heating box, are not recycled but directly wasted, which not only causes serious heat loss but also significantly reduces the energy utilization rate of the microwave device.
[0004] In the field of oil processing, if the above unused heat energy can be effectively collected and used for preheating of the oil, the energy utilization efficiency of the microwave processing device can be significantly improved, and the industry pain points of high energy consumption and short component life of the existing device can be alleviated. Therefore, an energy-saving heat recovery tunnel microwave device for oil is needed to solve the above problems. SUMMARY
[0005] The application aims to provide an energy-saving heat recovery tunnel microwave device for oil, which has the advantages of improving heat recovery efficiency, reducing device operation energy consumption, and enhancing the working stability of key components.
[0006] The application provides an energy-saving heat recovery tunnel microwave device for oil, which adopts the following technical solutions, including a microwave heating box, a heat insulation plate, a conveyor belt, a heat exchanger, a dehumidification device, an outlet end, an inlet, an exhaust pipeline, an energy feedback component, a heat collection cover, and an exhaust pipe. The microwave heating box is arranged on a support, heat insulation plates are arranged on the upper and lower sides of the microwave heating box, a heat collecting cover is arranged on the top of the energy feeding assembly, the heat collecting cover is communicated with the heat exchanger through a heat extraction pipeline, one end of the dehumidification pipeline is connected with the air inlet of the dehumidification device, and the air outlet of the dehumidification device is communicated with the heat exchanger. The heat exchanger is provided with a feeding port and a discharging port, the discharging port is connected with the feeding end of the conveying belt, the conveying belt passes through the microwave heating box in parallel, and the other end of the conveying belt is a discharging end.
[0007] Further, the surface of the heat insulation plate is a high-temperature-resistant microwave reflection material layer, and a high-temperature-resistant heat insulation material layer is arranged inside the heat insulation plate, so as to block the microwave and heat energy in the microwave heating box from being emitted outward.
[0008] Further, the heat collecting cover is completely arranged outside the energy feeding assembly, so as to collect the heat emitted by the energy feeding assembly during operation.
[0009] Further, the dehumidification device adopts an adsorption type or a compression type.
[0010] Further, one end of the heat extraction pipeline is communicated with the internal space of the heat collecting cover, and the other end of the heat extraction pipeline is communicated with the internal cavity of the heat exchanger, so as to transport the heat collected by the heat collecting cover to the heat exchanger.
[0011] Further, the heat exchanger is a direct heat exchange structure, so that the hot air from the dehumidification device and the heat collecting cover directly contacts and exchanges heat with the oil input from the feeding port.
[0012] Further, the conveying belt is made of a non-metallic high-temperature-resistant material, and the conveying rate can be adjusted through a PLC system.
[0013] Further, the energy feeding assembly vertically emits microwaves into the internal cavity of the microwave heating box through the energy feeding port formed in the top of the microwave heating box.
[0014] The beneficial effects of the present application are as follows: 1. The heat recovery device and the heat exchange device are arranged, waste heat in microwave operation is recovered, the oil is preheated, the energy utilization rate and the efficiency of the whole system are improved, and the microwave equipment has lower energy consumption under the same productivity.
[0015] 2. The surface of the heat insulation plate in the microwave heating box is a high-temperature-resistant microwave reflection material layer, and a high-temperature-resistant heat insulation material layer is arranged inside the heat insulation plate, so as to reduce the energy emission in the box and improve the energy utilization rate.
[0016] 3. The heat insulation layer and the heat extraction assembly arranged in the present application significantly reduce the working environment temperature of the magnetron and other components, and improve the service life and working efficiency.
[0017] 4、The dehumidifying device of the present application adopts compression and adsorption, etc., and the heat exchanger can make the hot gas after dehumidification directly exchange heat with the oil, so the heat exchange efficiency is high and the heat energy loss is small. BRIEF DESCRIPTION OF DRAWINGS
[0018] For ease of illustration, the present application is described in detail by the following specific embodiments and drawings.
[0019] Figure 1 is a structural schematic diagram of the present application.
[0020] In the figure: 1, microwave heating box; 2, heat insulation plate; 3, conveying belt; 4, heat exchanger; 5, dehumidifying device; 6, discharge end; 7, feeding port; 8, heat extraction pipeline; 9, energy feeding assembly; 10, heat collecting cover; 11, dehumidifying pipe; 12, oil. DETAILED DESCRIPTION
[0021] The following are specific embodiments of the present application and further describe the technical solutions of the present application in combination with the drawings, but the present application is not limited to these embodiments; in the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, in order to be clear and concise, the description of known functions and structures is omitted.
[0022] It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict.
[0023] As Figure 1 shown in a specific embodiment of an energy-saving type heat energy recovery tunnel type microwave equipment for oil, including microwave heating box 1, heat insulation plate 2, conveying belt 3, heat exchanger 4, dehumidifying device 5, discharge end 6, feeding port 7, heat extraction pipeline 8, energy feeding assembly 9, heat collecting cover 10 and dehumidifying pipe 11; the microwave heating box 1 is arranged on the support, the microwave heating box 1 is provided with heat insulation plates 2 on the upper and lower sides, the top is equipped with energy feeding assembly 9 and dehumidifying pipe 11, the energy feeding assembly 9 is covered with heat collecting cover 10, the heat collecting cover 10 is communicated with the heat exchanger 4 through the heat extraction pipeline 8, the other end of the dehumidifying pipe 11 is connected with the air inlet of the dehumidifying device 5, the air outlet of the dehumidifying device 5 is communicated with the heat exchanger 4; the heat exchanger 4 is provided with a feeding port 7 and a discharge port, the discharge port is connected with the feeding end of the conveying belt 3, the conveying belt 3 passes through the microwave heating box 1 in parallel, and the other end is the discharge end 6.
[0024] Specifically, the heat insulation plate 2 arranged above and below in the microwave heating box 1 reduces the temperature of the outer wall of the box body by reflecting microwaves and blocking heat conduction, thereby reducing the temperature fluctuation of the working environment of the magnetron and other components. The heat generated by the energy feeding assembly 9 during operation is captured by the heat collecting cover 10 and transported to the airflow channel of the heat exchanger 4 through the heat extraction pipeline 8. At the same time, the humid hot air generated by heating the oil 12 enters the dehumidifying device 5 through the dehumidifying pipeline 11, and the dry hot air after removing the moisture is also introduced into the heat exchanger 4. In the heat exchanger 4, the two streams of hot air from the heat collecting cover 10 and the dehumidifying device 5 directly contact the oil 12 entering the feed inlet, and heat energy transfer is completed. The preheated oil 12 is sent into the microwave heating box 1 for secondary heating through the conveyor belt, forming a continuous heat energy recycling path.
[0025] Specifically, the conveyor belt 3 is made of non-metallic high-temperature-resistant material, and its conveying speed can be adjusted by a PLC system. The selection of non-metallic material avoids the problem of electromagnetic interference caused by metal materials in the microwave field, and its high-temperature-resistant property can withstand the continuous high-temperature environment inside the microwave heating box 1, preventing the conveyor belt 3 from being jammed or broken due to thermal deformation. The PLC system automatically adjusts the running speed of the conveyor belt by real-time acquisition of the moisture content detection data of the oil 12 or the microwave power parameters, for example, reducing the conveying speed to prolong the heating time when the initial moisture content of the oil 12 is high, or simultaneously increasing the conveying speed to avoid local overheating when the microwave power is increased, thereby achieving the synergistic optimization of the uniformity of the oil 12 heated and the processing efficiency.
[0026] The working process of the above-mentioned energy-saving heat energy recycling tunnel microwave equipment for oil is as follows: the oil 12 enters the heat exchanger 4 from the feed inlet 7, exchanges heat with the hot air in the heat exchanger 4, the temperature rises, falls onto the conveyor belt 3, and is sent to the microwave heating box 1 by the conveyor belt 3, absorbs microwaves fed from the energy feeding assembly 9 above the microwave heating box 1, the temperature of the oil 12 rises, and the moisture is released, and the oil 12 is mixed with the hot air in the box to form humid hot air. The oil 12 is then discharged from the discharge end 6, the heat generated during the operation of the energy feeding assembly 9 is concentrated in the heat collecting cover 10, and is directly transported to the heat exchanger 4 through the heat extraction pipeline 8. The humid hot air in the microwave heating box 1 is drawn into the dehumidifying device 5 through the dehumidifying pipeline 11, and the dehumidifying device 5 transports the hot air after removing the moisture to the heat exchanger 4 to exchange heat with the oil 12 entering the feed inlet 7, and the cycle continues.
[0027] In other preferred embodiments, the surface of the heat insulation plate 2 is a layer of high-temperature-resistant microwave-reflecting material, and a layer of high-temperature-resistant heat insulation material is sandwiched inside, for blocking the outward emission of microwaves and heat energy in the microwave heating box 1.
[0028] Specifically, the high-temperature microwave reflection material layer arranged on the surface reflects microwaves, so that microwave energy is limited in the internal cavity of the heating box, and energy loss caused by microwave leakage is avoided; the high-temperature heat insulation material layer arranged inside blocks heat transfer through low thermal conductivity, and heat dissipation from the high-temperature environment in the box to the outside is reduced. The combination of the two forms a composite barrier structure, which prevents microwave leakage and reduces the diffusion of heat to the external environment, maintains a stable thermal environment in the box, and avoids the shortening of the service life of external components caused by high-temperature environment.
[0029] In other preferred embodiments, the heat collecting cover 10 is completely arranged outside the energy feeding component 9, and is used to collect heat emitted by the energy feeding component 9 during operation. One end of the heat extraction pipeline 8 is in communication with the internal space of the heat collecting cover 10, and the other end is in communication with the internal cavity of the heat exchanger 4, and is used to transport the heat collected by the heat collecting cover 10 to the heat exchanger 4.
[0030] Specifically, the radiant heat and convective heat generated during the operation of the energy feeding component 9 are limited in the closed space formed by the heat collecting cover 10, and the heat is uniformly absorbed through the heat conduction structure of the inner wall of the heat collecting cover 10, and then is directionally transported to the heat exchanger 4 through the heat extraction pipeline 8. Since the heat collecting cover 10 completely covers all the heat dissipation surfaces of the energy feeding component 9, heat cannot be dissipated to other areas of the device through air convection or heat radiation, thereby avoiding the problem of temperature rise of the peripheral environment of the energy feeding component 9, and at the same time providing a stable high-temperature heat source for subsequent heat recovery.
[0031] In other preferred embodiments, the dehumidifying device 5 adopts an adsorption type or compression type water removal mode. The heat exchanger 4 is a direct heat exchange structure, so that the hot air from the dehumidifying device 5 and the heat collecting cover 10 directly contacts and exchanges heat with the oil 12 input from the feed inlet.
[0032] Specifically, the hot air from the dehumidifying device 5 and the heat collecting cover 10 refers to a composite heat source formed by mixing the dry hot air stream after being processed by the dehumidifying device and the waste heat air stream collected by the heat collecting cover 10, which can be realized by parallel pipeline confluence or serial cavity mixing, and the temperature gradient of the hot air is improved by integrating the two heat sources.
[0033] Specifically, the dehumidifying device 5 of the present application adopts an adsorption type or compression type water removal mode, and the like, which can be flexibly selected or combined according to actual working conditions, so as to ensure that water can be effectively removed under different humidity conditions, and the influence of humidity on heat exchange efficiency and equipment stability is avoided. The heat exchanger 4 can directly exchange heat between the dehumidified hot air and the oil 12, has high heat exchange efficiency, and has less heat energy loss.
[0034] In other preferred embodiments, the energy feeding assembly 9 is arranged on the top of the heating box, and the energy feeding assembly 9 is composed of a magnetron, a transformer and the like (which is mature prior art) for converting electric energy into microwave electromagnetic waves, and the energy feeding assembly 9 emits the electromagnetic waves vertically into the internal cavity of the heating box through the energy feeding port on the top of the microwave heating box 1.
[0035] An actual implementation case of the technical solution of the present application is as follows: The rapeseed with an initial temperature of 25℃ is set to be heated to 140℃ by the microwave heating box 1, and after stable operation, the microwave power is kept unchanged at 60kw, the heat and moisture extraction is started, and the dehumidification device 5 and the heat exchanger 4 are operated (i.e. the technical solution of the present application is adopted), and the temperature of the rapeseed raw material after being discharged from the heat exchanger is 58℃, and in this case, the production rate is increased by about 24% under the condition that the microwave equipment power is unchanged, and the total power of the heat and moisture extraction, the dehumidification and the heat exchange equipment is 3kw, i.e. under the condition of the same production rate, the present application can save about 19% of energy consumption.
[0036] It is to be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise, and it should also be understood that the terms "comprise" and / or "include" as used in the specification indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0037] In the description of the present application, it should be understood that the terms "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0038] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0039] Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
Claims
1. An energy-saving heat recovery tunnel microwave device for oil, characterized in that, It includes a microwave heating box (1), a heat insulation plate (2), a conveyor belt (3), a heat exchanger (4), a dehumidification device (5), a discharge end (6), a feed inlet (7), a heat extraction pipe (8), a power supply component (9), a heat collection cover (10), and a dehumidification pipe (11). The microwave heating box (1) is mounted on a support. Insulation plates (2) are provided on both the upper and lower sides of the microwave heating box (1). A power supply component (9) and a dehumidification pipe (11) are mounted on the top. A heat collection cover (10) is provided on the upper part of the power supply component (9). The heat collection cover (10) is connected to the heat exchanger (4) through a heat extraction pipe (8). The other end of the dehumidification pipe (11) is connected to the air inlet of the dehumidification device (5). The air outlet of the dehumidification device (5) is connected to the heat exchanger (4). The heat exchanger (4) is provided with a feed inlet (7) and a discharge outlet. The discharge outlet is connected to the feed end of the conveyor belt (3). The conveyor belt (3) passes parallel through the microwave heating box (1), and its other end is the discharge end (6).
2. The energy-saving heat recovery tunnel microwave device for oil as described in claim 1, characterized in that, The surface of the heat insulation plate (2) is a layer of high temperature microwave reflective material, and a layer of high temperature heat insulation material is sandwiched inside to block the microwave and heat energy in the microwave heating box (1) from escaping outward.
3. The energy-saving heat recovery tunnel microwave device for oil as described in claim 1, characterized in that, The heat collection cover (10) is completely covered outside the energy feeding component (9) to collect the heat emitted by the energy feeding component (9) when it is working.
4. The energy-saving heat recovery tunnel microwave device for oil as described in claim 1, characterized in that, The dehumidification device (5) adopts either adsorption-type or compression-type dehumidification.
5. The energy-saving heat recovery tunnel microwave device for oil as described in claim 1, characterized in that, One end of the heat extraction pipe (8) is connected to the internal space of the heat collection shroud (10), and the other end is connected to the internal cavity of the heat exchanger (4), which is used to transport the heat collected by the heat collection shroud (10) to the heat exchanger (4).
6. The energy-saving heat recovery tunnel microwave device for oil as described in claim 1, characterized in that, The heat exchanger (4) is a direct heat exchange structure, which allows the hot air from the dehumidification device (5) and the heat collection hood (10) to directly contact and exchange heat with the oil (12) fed into the feed inlet (7).
7. The energy-saving heat recovery tunnel microwave device for oil as described in claim 1, characterized in that, The conveyor belt (3) is made of non-metallic high-temperature resistant material, and its conveying speed can be adjusted by a PLC system.
8. The energy-saving heat recovery tunnel microwave device for oil as described in claim 1, characterized in that, The power feeding component (9) transmits microwaves vertically into the internal cavity of the microwave heating box (1) through the power feeding port opened at the top of the microwave heating box (1).