Energy-saving large-scale cooking stove radiant core module device and preparation method

Abstract

This invention provides an energy-saving large-scale cooktop radiant heating core module device and its preparation method. The device includes a heat-insulating heating element, which comprises a bottom fixed mounting plate. Multiple blank plate modules are evenly distributed on the bottom fixed mounting plate. Each blank plate module has a heat-insulating and insulating module assembly on its outer side. Each heat-insulating and insulating module assembly has an easily removable protective plate on its outer side, and each easily removable protective plate has an overload protector module on its outer side. This invention solves the problems existing in traditional kitchen stoves by integrating the energy-saving large-scale cooktop radiant heating core module device into the stove. Furthermore, the heating method of the energy-saving large-scale cooktop heating core module is noiseless and generates no waste heat, resulting in a clean and comfortable operating environment, optimizing the kitchen environment, not raising the operating environment temperature, eliminating the feeling of being roasted by an open flame, eliminating radiation, improving the user experience, and making operation safer.

Description

Technical Field

[0001] This invention relates to the field of cooktop radiant core module devices, specifically to an energy-saving large-scale cooktop radiant core module device and its preparation method. Background Technology

[0002] Traditional kitchen stoves mainly come in two types: induction cooktops and gas stoves. Both types have certain problems during use, mainly manifested in the following ways: Due to the inherent characteristics of induction cookers, they generate noise and radiation during use, resulting in poor taste of cooked dishes.

[0003] Because large gas stoves require the use of combustion-supporting blowers during operation, they are noisier and produce a burning or scorching sensation from the open flame.

[0004] Both of the above stoves have certain shortcomings during use, resulting in a poor user experience, and prolonged use may cause some degree of harm to the human body. Summary of the Invention

[0005] In view of this, the present invention provides an energy-saving large-scale pot stove radiant heating core module device and its preparation method. By integrating the energy-saving large-scale pot stove radiant heating core module device into the stove, the problems existing in the use of traditional kitchen stoves can be solved. Moreover, the heating method of the energy-saving large-scale pot stove heating core module is noiseless and waste heat-free, making the operating environment clean and comfortable, optimizing the kitchen environment, not raising the operating environment temperature, eliminating the feeling of open flame roasting, eliminating radiation, improving the user experience, and making operation safer.

[0006] To address the aforementioned technical problems, this invention provides an energy-saving large-scale cooktop radiant heating core module device and its preparation method. The device includes a heat-insulating heating element, which comprises a bottom fixed mounting plate. Multiple blank modules are evenly distributed on the bottom fixed mounting plate. Each blank module includes a heat-insulating blank, on which multiple nickel-chromium alloy Z-shaped heating elements composed of nickel-chromium alloy heating wires are embedded. Each blank module has a heat-insulating and insulating module assembly on its outer side, and each heat-insulating and insulating module assembly has an easily removable protective plate on its outer side. The easily removable protective plate is made of 304 stainless steel, and each easily removable protective plate has an overload protector module on its outer side. This invention solves the problems existing in traditional kitchen stoves by integrating the energy-saving large-scale cooktop radiant heating core module device into the stove. Furthermore, the energy-saving large-scale cooktop heating core module provides noiseless and waste-heat-free operation, resulting in a clean and comfortable operating environment, optimizing the kitchen environment, preventing the operating environment temperature from rising, eliminating the feeling of open flame or scorching heat, eliminating radiation, improving the user experience, and making operation safer.

[0007] The overload protector module includes a heat insulation fixing plate seat located on the outside of the easily removable protective plate. The heat insulation fixing plate seat is detachably mounted on the outer wall of the heat insulation blank by fasteners. The fasteners are stainless steel fasteners. Terminal inserts are provided on the heat insulation fixing plate seat.

[0008] A temperature detection probe is installed in the middle of the heat insulation blank. A temperature probe interface connected to the probe is located on the back of the heat insulation blank along the axis of the temperature detection probe, and the temperature probe interface is plugged into the temperature detection probe. A temperature detection sensor is installed on the upper part of the bottom fixed mounting plate, and the temperature detection sensor is located on the vertical line where the geometric center of the bottom fixed mounting plate is located. A temperature detection interface adapted to the temperature detection sensor is located on the bottom of the heat insulation blank along the axis of the temperature detection sensor, and the temperature detection interface is plugged into the temperature detection sensor. The temperature detection probe and the temperature detection sensor can accurately detect the temperature of the heat insulation and the bottom of the pot, which is more convenient and reliable.

[0009] A method for preparing an energy-saving large-scale cooktop radiant heating core module device includes the following preparation steps: S1. Ingredients: Weigh out ceramic fiber cotton, silica powder, fine-porous silica gel, water, and air microspheres in sequence by weight; including the following specific components: ceramic fiber cotton: 15%-23%, silica powder: 12%-18%, fine-porous silica gel: 5%-8%, water: 20%-23%, air microspheres: 23%-28% S2. Preparation of solution mixture: The ceramic fiber cotton, silicon powder, fine-pore silica gel, water, and air microspheres in S1 are pre-mixed and stirred to obtain a solution mixture; S3. Preparation of powder mixture: First, the ceramic fiber is crushed and separated into florets by a crusher. Then, the silicon powder and air microspheres are fed into a mixer in a certain proportion and stirred to obtain the powder mixture. S4. Preparation of finished solid mixture: A certain proportion of ceramic fiber cotton that has been broken into florets is added to a mixer. The solid mixture is stirred by the mixer to prevent the fiber solid material from agglomerating. After uniform mixing, a pre-prepared solution mixture is added. The mixture is then sprayed under high pressure while stirring to ensure thorough mixing and obtain the finished solid mixture. S5. Making the blank disc: A certain amount of solid mixture is put into the mold cavity of the servo hydraulic press and pressed to form a fan-shaped blank disc. S6. Qualitative sintering of the blank disc: The obtained blank disc is placed in a tunnel kiln and treated by a curved temperature sintering process. The temperature is gradually increased from the ambient temperature. First, the blank is dried and solidified. Then, the organic materials are completely volatilized and removed to form a porous structure. Finally, the material of the blank disc is qualitatively sintered. S7. Making thermal insulation blanks: The blanks that have been sintered in S6 are processed by machining equipment such as lathes, grinding wheels, edge trimming machines, and high-speed engraving machines to obtain complete thermal insulation blanks. S8. Fabrication of the blank plate module: The nickel-chromium alloy heating wire is embedded in the heat-insulating blank to fix the nickel-chromium alloy heating wire, so that the nickel-chromium alloy heating wire is laid out in a fan shape with equal intervals and parallel sides to form a fan-shaped blank plate module. S9. Fabrication of a heat-insulating heating element: Multiple blank plate modules from S8 are sequentially installed into a stainless steel shell, with expansion gaps reserved between adjacent blank plate modules to form a circular heat-insulating heating element with the same curvature as the pot. The purpose of reserving expansion gaps between two blank plate modules is to reduce problems such as thermal expansion and contraction and cracking caused by rapid temperature changes. Since each module is independent, later maintenance and repair are simple. Damaged module components can be directly replaced without replacing the entire heating plate, which greatly facilitates later maintenance, significantly reduces maintenance difficulty and time, and saves later maintenance costs. S10. Assemble the temperature detection probe and overload protector module: Install a 1300℃ temperature detection probe in the middle of the fan-shaped blank plate module of each circular heat-insulating heating element in S9. This probe is used to detect the temperature of multiple fan-shaped blank plate modules in each circular heat-insulating heating element in real time. Then, install each blank plate module into the overload protector module for detecting overload current to protect the heating module assembly.

[0010] Among them, the ceramic fiber cotton spun fibers in S1 have an average fiber diameter of 3.0-3.2 μm and a fiber specific gravity of 3100 kg / m³; the average particle size of the silica powder reaches the nanoscale and the refractory temperature is 1750℃; the fine-porous silica gel is a colorless or slightly yellow transparent glass with an average pore spacing of 2.0-3.0 nm, a specific surface area of ​​650-800 m² / g, a pore volume of 0.35-0.4 mL / g, a specific heat of 0.92 KJ / kg·℃, and a thermal conductivity of 0.63 KJ / m·hr·℃.

[0011] The specific operation method in S2-S5 is as follows: Ceramic fiber cotton, silica powder, and air microspheres are weighed and then sequentially fed into a vertical cylindrical 304 stainless steel container before water and fine-pore silica gel. The mixture is pre-stirred at 100-150 rpm for 4-5 minutes to obtain a solution mixture. The ceramic fiber is then crushed into fibrous clusters by a 1200 rpm crusher for 15 minutes. Silica powder and air microspheres are then weighed and sequentially fed into the mixing chamber of a stainless steel mixing container. The mixture is then stirred using a double-paddle structure. After high-speed stirring for 10 minutes to form a powdery mixture, a certain proportion of ceramic fiber cotton, which has been broken into florets, is added. The mixture is stirred by a double-set of paddles at high speed and by six sets of high-speed flying knife devices in the mixing container to prevent the fiber solid material from agglomerating. After uniform mixing for 10 to 35 minutes, a pre-prepared solution mixture is added. The mixture is then stirred and sprayed under high pressure for 8 to 12 minutes to obtain the finished solid mixture. A certain amount of the solid mixture is then placed into the mold cavity of a 400T servo hydraulic press. The initial blank is formed by pressing once, and then the initial blank is taken out and placed into a 350T precision pressing mold cavity for a second process. After holding the pressure for 30 seconds, a fan-shaped blank disc is obtained.

[0012] The specific operation method in S6 is as follows: the blank disc obtained in S5 is placed in a tunnel kiln and processed by a curved temperature sintering process. The temperature is gradually increased from the ambient temperature, initially raised to 180°C and dried for 1.5 hours to complete the drying and curing process of the blank. The temperature is then increased from 180°C to 350°C for 2 hours to complete the complete volatilization and removal of organic materials and form a porous structure. The temperature is then gradually increased from 350°C to 1100°C for 2 hours to complete the qualitative sintering of the blank disc.

[0013] In step S6, the nickel-chromium alloy heating wire is fixed as follows: the nickel-chromium alloy heating element is slit into 8mm wide strips with a material thickness of 0.12mm. These strips are then high-speed stamped using precision metal molds to form a "V"-shaped tube with a height of 3mm. A reciprocating folding mechanism then folds the strip into a "Z" shape with a wave height of 4mm. The finished nickel-chromium alloy heating wire with "V"-shaped tubes and a "Z"-shaped form is then laid on a fan-shaped metal mold using a shaping mold. The process involves placing the metal mold with the heating wire laid on it onto the curved surface of the heat insulation component. After aligning the positions, the heat insulation blank and the metal mold with the heating wire laid on it are placed together on a punch press. The punch press moves the male mold with the heating wire laid on it downwards, embedding the "V"-shaped tube of the nickel-chromium alloy into the heat insulation blank, thus fixing the nickel-chromium alloy heating wire. This makes the heating wire fan-shaped, evenly spaced, and parallel to each other on the sides, generating a radiating heat source in the same direction, resulting in rapid heating and a more uniform heat source temperature.

[0014] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Due to its operating principle, traditional induction cookers produce noise and radiation during use, resulting in poor taste of cooked food.

[0015] Traditional large gas stoves require the use of combustion-supporting blowers, which results in louder noise during operation and a burning or scorching sensation from the open flame. As a type of large cooktop in the kitchen appliance market, the radiant energy-saving wok stove breaks away from traditional heating principles. It differs significantly from the electromagnetic induction eddy current heating principle of induction cookers and the combustion principle of gas stoves. The radiant energy-saving wok stove utilizes a nickel-chromium alloy, formed into a multi-toothed wave-shaped structure through mold stamping and mechanical folding processes, as the heating element. Ceramic fibers, nanomaterials, hollow microspheres, silica sol, and water are mixed in a specific ratio, quantitatively pressed into shape using a press, and then calcined at high temperature to form a carrier. This carrier has a porous structure, providing excellent heat insulation through pores, low thermal conductivity, and a high heat reflection coefficient, reflecting heat away in the same direction. It exhibits extremely high heat preservation performance, minimal heat loss, and excellent insulation properties.

[0016] 2. The energy-saving large pot stove uses a heating core module that generates heat without noise or waste heat, creating a clean and comfortable operating environment. It optimizes the kitchen environment, does not raise the operating temperature, and eliminates the feeling of being roasted or scorched by an open flame. It is noiseless and radiation-free, and can replace traditional cooking methods. It can be used for various cooking methods such as steaming, boiling, frying, deep-frying, stewing, braising, simmering, and simmering. The temperature can be controlled at will by adjusting the inorganic power, thus achieving the ideal color, aroma, and taste of the food.

[0017] 3. The radiant heating core module uses materials with the lowest thermal conductivity among solid materials, possessing excellent thermal insulation properties and high voltage resistance. This gives the heating core directional heat conduction, improving its thermal efficiency and maximizing heat energy utilization while saving energy and significantly extending its lifespan. The radiant heating core module can be used in cookware with diameters ranging from 1 to 3 meters. Its heating method makes it the ideal electric heating element and energy-saving, quiet, and heat-insulating radiant heating core for kitchen cooking appliances in large restaurants, food festivals, hotel kitchens, and food processing plants.

[0018] 4. This radiant heat core module is used in products for cooking venues in large supermarkets, hotel kitchens and food processing plants, large-scale catering events and food festivals, etc. Kitchen cooktops made with this material feature fully manual, stepless operation. They offer smooth heat control, are highly energy-efficient, flameless, environmentally friendly, compatible with all cookware, powerful, and heat up quickly (beneficial to human health), making them especially suitable for home cooking.

[0019] 5. This invention solves the problems existing in the use of traditional kitchen stoves by integrating the energy-saving large pot stove radiant heating core module device into the stove. Moreover, the heating method of the energy-saving large pot stove heating core module is noiseless and waste heat-free, making the operating environment clean and comfortable, optimizing the kitchen environment, not raising the operating environment temperature, without the feeling of open flame roasting, without radiation, improving the user experience, and making operation safer.

[0020] 6. The multiple blank plate modules in S8 are sequentially installed into the stainless steel shell, and expansion gaps are reserved between adjacent blank plate modules. This is to reduce problems such as thermal expansion and contraction and cracking caused by rapid temperature changes. Since each module is independent, maintenance and repair are simple. Damaged modules can be replaced directly without replacing the entire heating plate, which greatly facilitates maintenance, significantly reduces maintenance difficulty and time, and saves on maintenance costs.

[0021] 7. The high-temperature resistant thermal insulation materials are made of nano-silicon and ultrafine powder, using hollow microspheres, zirconium-containing fibers, and silicon powder reflective materials as raw materials. Their temperature resistance range can reach 1350℃-1800℃. They can directly insulate and insulate nickel-chromium heating elements. The thermal conductivity of the high-temperature resistant thermal insulation materials is only 0.03W / mK, which can effectively suppress and shield infrared radiation heat and bottom heat conduction. Their thermal insulation suppression efficiency can reach about 90%. They can suppress the heat radiation and heat loss of high-temperature objects, effectively suppress the heat loss caused by environmental radiation heat, and prevent the condensation of objects. The high-temperature resistant thermal insulation material in this invention is pollution-free and has excellent properties such as resistance to heat radiation, thermal insulation, and resistance to moisture and corrosion. The high-temperature resistant thermal insulation material of this invention has the advantages of good weather resistance, strong moisture resistance, and strong aging resistance. It is mixed with fillers that are lightweight, hollow, high-temperature resistant, have high thermal resistance, high refractive index, high surface smoothness, and high thermal reflectivity and emissivity, which make it have good reflectivity and emissivity.

[0022] 8. The energy-saving large-scale pot stove radiant heating core module device involved in this invention is used for cooking in various large, medium and small, civil, commercial and household occasions. It is noiseless, radiation-free, clean, hygienic and pollution-free, and safer and more reliable. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the energy-saving large-scale pot stove radiant heating core module device of the present invention; Figure 2 This is an exploded view of the energy-saving large-scale pot stove radiant heating core module device of the present invention; Figure 3 This is a top view of the energy-saving large-scale pot stove radiant heating core module device of the present invention; Figure 4 This is a bottom view of the energy-saving large-scale pot stove radiant heating core module device of the present invention; Figure 5 This is a front view of the energy-saving large-scale pot stove radiant heating core module device of the present invention; Figure 6 This is a process flow diagram of the preparation method of the energy-saving large-scale pot stove radiant heating core module device of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 100, Insulated heating element; 110, Bottom mounting plate; 120, Blank module; 121, Insulated blank; 122, Nickel-chromium alloy Z-shaped heating element; 130, Insulated module assembly; 140, Easy-to-remove protective plate; 150, Overload protector module; 151, Insulated mounting plate base; 152, Fastener; 153, Terminal insert; 200, Temperature detection probe; 300, Temperature probe interface; 400, Temperature sensor; 500, Temperature detection interface. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of the present invention. Figure 1-6 The technical solutions of the embodiments of the present invention will be clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0026] like Figure 1-6 As shown: This embodiment provides an energy-saving large-scale stove radiant heating core module device and its preparation method, including a heat-insulating heating element 100. The heat-insulating heating element 100 includes a bottom fixed mounting plate 110, on which multiple blank plate modules 120 are evenly distributed. Each blank plate module 120 includes a heat-insulating blank 121, on which multiple nickel-chromium alloy Z-shaped heating tapes 122 composed of nickel-chromium alloy heating wires are embedded. Each blank plate module 120 has a heat-insulating and insulating module assembly 130 on its outer side. The outer side of each of the 130 is provided with an easy-to-remove protective plate 140, which is made of 304 stainless steel. Each easy-to-remove protective plate 140 is provided with an overload protector module 150 on its outer side. This invention can solve the problems existing in the use of traditional kitchen stoves by integrating the energy-saving large pot stove radiant heating core module device into the stove. Moreover, the heating method of the energy-saving large pot stove heating core module is noiseless and waste heat-free, making the operating environment clean and comfortable, optimizing the kitchen environment, not raising the operating environment temperature, without the feeling of open flame roasting, without radiation, improving the user experience, and making operation safer.

[0027] According to one embodiment of the present invention, such as Figure 1 , Figure 3 and Figure 5 As shown, the overload protector module 150 includes a heat insulation fixing plate seat 151 disposed on the outside of the easily detachable protective plate 140. The heat insulation fixing plate seat 151 is detachably disposed on the outer side wall of the heat insulation blank 121 by fasteners 152. The fasteners 152 are stainless steel fasteners. Terminal inserts 153 are provided on the heat insulation fixing plate seat 151.

[0028] According to another embodiment of the invention, such as Figure 1 , Figure 3 and Figure 4 As shown, a temperature detection probe 200 is provided in the middle of the heat insulation blank 121. A temperature probe interface 300 connected to the back of the heat insulation blank 121 and located on the axis of the temperature detection probe 200 is provided, and the temperature probe interface 300 and the temperature detection probe 200 are plugged together. A temperature detection sensor is provided on the upper part of the bottom fixed mounting plate 110. The temperature detection sensor is located on the vertical line where the geometric center of the bottom fixed mounting plate 110 is located. A temperature detection interface adapted to the bottom of the heat insulation blank 121 and located on the axis of the temperature detection sensor 400 is provided. The temperature detection interface is plugged together with the temperature detection sensor 400. The temperature of the heat insulation material and the bottom of the pot can be accurately detected through the temperature detection probe 200 and the temperature detection sensor 400, which is more convenient and reliable.

[0029] According to another embodiment of the invention, such as Figure 6 As shown, a method for preparing an energy-saving large-scale pot stove radiant heating core module device is disclosed, wherein the pot stove radiant heating core module device comprises the following specific components: ceramic fiber cotton: 15%-23%, silica powder: 12%-18%, fine porous silica gel: 5%-8%, water: 20%-23%, and air microspheres: 23%-28%.

[0030] A method for preparing an energy-saving large-scale cooktop radiant heating core module device includes the following preparation steps: S1. Ingredients: Weigh out ceramic fiber cotton, silica powder, fine-pore silica gel, water, and air microbeads in order of weight. S2. Preparation of solution mixture: The ceramic fiber cotton, silicon powder, fine-pore silica gel, water, and air microspheres in S1 are pre-mixed and stirred to obtain a solution mixture; S3. Preparation of powder mixture: First, the ceramic fiber is crushed and separated into florets by a crusher. Then, the silicon powder and air microspheres are fed into a mixer in a certain proportion and stirred to obtain the powder mixture. S4. Preparation of finished solid mixture: A certain proportion of ceramic fiber cotton that has been broken into florets is added to a mixer. The solid mixture is stirred by the mixer to prevent the fiber solid material from agglomerating. After uniform mixing, a pre-prepared solution mixture is added. The mixture is then sprayed under high pressure while stirring to ensure thorough mixing and obtain the finished solid mixture. S5. Making the blank disc: A certain amount of solid mixture is put into the mold cavity of the servo hydraulic press and pressed to form a fan-shaped blank disc. S6. Qualitative sintering of the blank disc: The obtained blank disc is placed in a tunnel kiln and treated by a curved temperature sintering process. The temperature is gradually increased from the ambient temperature. First, the blank is dried and solidified. Then, the organic materials are completely volatilized and removed to form a porous structure. Finally, the material of the blank disc is qualitatively sintered. S7. Fabrication of thermal insulation blanks: The blank discs that have been sintered in S6 are processed by machining equipment through turning, milling, edge grinding, engraving and other machining processes to obtain complete thermal insulation blanks. S8. Fabrication of blank plate module 120: The nickel-chromium alloy heating wire is embedded in the heat-insulating blank to fix the nickel-chromium alloy heating wire, so that the nickel-chromium alloy heating wire is laid out in a fan shape with equal intervals and parallel sides, thus forming a fan-shaped blank plate module 120. S9. Fabrication of the heat-insulating heating element 100: The multiple blank plate modules 120 in S8 are sequentially installed into the stainless steel shell, and an expansion gap is reserved between two adjacent blank plate modules 120 to form a circular heat-insulating heating element 100 with the same arc as the pot. The purpose of reserving an expansion gap between two blank plate modules 120 is to reduce problems such as thermal expansion and contraction and cracking caused by rapid temperature changes. Since each module is independent, the later maintenance and repair are simple. The damaged module component can be directly replaced without replacing the entire heating plate, which greatly facilitates the later maintenance, significantly reduces the maintenance difficulty and maintenance time, and saves the later maintenance cost. S10. Assemble the temperature detection probe 200 and the overload protector module 150: Insert the temperature detection probe 200 with a temperature resistance of 1300℃ into the middle of the fan-shaped blank plate module 120 of each circular heat-insulating heating element 100 in S9, so as to detect the temperature of the multiple fan-shaped blank plate modules 120 in each circular heat-insulating heating element 100 in real time. Then, install each blank plate module 120 into the overload protector module 150 for detecting overload current, so as to protect the heating module assembly.

[0031] Among them, the ceramic fiber cotton spun fibers in S1 have an average fiber diameter of 3.0-3.2 μm and a fiber specific gravity of 3100 kg / m³; the average particle size of the silica powder reaches the nanoscale and the refractory temperature is 1750℃; the fine-porous silica gel is a colorless or slightly yellow transparent glass with an average pore spacing of 2.0-3.0 nm, a specific surface area of ​​650-800 m² / g, a pore volume of 0.35-0.4 mL / g, a specific heat of 0.92 KJ / kg·℃, and a thermal conductivity of 0.63 KJ / m·hr·℃.

[0032] The specific operation method in S2-S5 is as follows: Ceramic fiber cotton, silica powder, and air microspheres are weighed and then sequentially fed into a vertical cylindrical 304 stainless steel container before water and fine-pore silica gel. The mixture is pre-stirred at 100-150 rpm for 4-5 minutes to obtain a solution mixture. The ceramic fiber is then crushed into fibrous clusters by a 1200 rpm crusher for 15 minutes. Silica powder and air microspheres are then weighed and sequentially fed into the mixing chamber of a stainless steel mixing container. The mixture is then stirred using a double-paddle structure. After high-speed stirring for 10 minutes to form a powdery mixture, a certain proportion of ceramic fiber cotton, which has been broken into florets, is added. The mixture is stirred by a double-set of paddles at high speed and by six sets of high-speed flying knife devices in the mixing container to prevent the fiber solid material from agglomerating. After uniform mixing for 10 to 35 minutes, a pre-prepared solution mixture is added. The mixture is then stirred and sprayed under high pressure for 8 to 12 minutes to obtain the finished solid mixture. A certain amount of the solid mixture is then placed into the mold cavity of a 400T servo hydraulic press. The initial blank is formed by pressing once, and then the initial blank is taken out and placed into a 350T precision pressing mold cavity for a second process. After holding the pressure for 30 seconds, a fan-shaped blank disc is obtained.

[0033] The specific operation method in S4 is as follows: the obtained blank is placed in a tunnel kiln and processed by a curved temperature sintering process. The temperature is gradually increased from the ambient temperature to 180°C for 1.5 hours to complete the drying and curing process of the blank. The temperature is increased from 180°C to 350°C for 2 hours to complete the complete volatilization and removal of organic materials and form a porous structure. The temperature is gradually increased from 350°C to 1100°C for 2 hours to complete the qualitative sintering of the blank disc.

[0034] In the S6, the nickel-chromium alloy heating wire is fixed as follows: the nickel-chromium alloy heating element is slit into 8mm wide strips with a material thickness of 0.12mm. These strips are then high-speed stamped using precision metal molds to form a "V"-shaped tube with a height of 3mm. A reciprocating folding mechanism then creates a flat strip forming a "Z" shape with a wave height of 4mm. The finished nickel-chromium alloy heating wire with "V"-shaped tubes and a "Z"-shaped coil is then laid onto a fan-shaped metal mold using a shaping mold. After placing the metal mold with the heating wire laid on it onto the curved surface of the heat insulation component and aligning the positions, the heat insulation blank and the metal mold with the heating wire laid on it are placed together on the punch press. The punch press moves the male mold with the heating wire laid on it downwards, and the "V"-shaped tube of the nickel-chromium alloy is embedded into the heat insulation blank, forming a fixed nickel-chromium alloy heating wire. The heating wire is laid in a fan shape with equal intervals and parallel sides, generating a radiating heat source in the same direction, resulting in rapid heating and a more uniform heat source temperature.

[0035] Method of using this invention: First, it needs to be clarified that the energy-saving large-scale stove radiant heating core module device involved in this invention is mainly used in stove equipment. The ceramic fiber cotton spun fibers mentioned in this article have an average fiber diameter of 3.0-3.2 μm and a fiber specific gravity of 3100 kg / m³; the average particle size of the silica powder reaches the nanoscale, and the refractory temperature is 1750℃; the fine-porous silica gel is a colorless or slightly yellow transparent glass with an average pore spacing of 2.0-3.0 nm, a specific surface area of ​​650-800 m² / g, a pore volume of 0.35-0.4 mL / g, a specific heat of 0.92 KJ / kg·℃, and a thermal conductivity of 0.63 KJ / m·hr·℃. The manufacturing process is described in detail below: S1. Ingredients: Weigh out ceramic fiber cotton, silica powder, fine-pore silica gel, water, and air microspheres in the following order by weight: ceramic fiber cotton: 15%-23%, silica powder: 12%-18%, fine-pore silica gel: 5%-8%, water: 20%-23%, and air microspheres: 23%-28%. S2. Preparation of solution mixture: The ceramic fiber cotton, silica powder, fine-pore silica gel, water, and air microspheres in S1 are pre-mixed to obtain a solution mixture. Specifically, the above raw materials are weighed and fed into a vertical cylindrical 304 stainless steel container in proportion before water and fine-pore silica gel, and pre-mixed at 100-150 rpm for 4-5 minutes to obtain a solution mixture. S3. Preparation of powdered mixture: The specific implementation method is as follows: ceramic fibers are crushed into florets by a 1200rpm crusher for 15 minutes. Then, silicon powder and air microspheres are fed into the mixing chamber of a stainless steel mixing container after being metered in a certain proportion. After being stirred at high speed for 10 minutes by a double-paddle structure, a powdered mixture is formed. S4. Preparation of the finished solid mixture: The specific implementation method is as follows: A certain proportion of metered and crushed ceramic fiber cotton is added to a mixer. The mixture is stirred at high speed using a double-blade system and six sets of high-speed blades within the mixing chamber to prevent clumping of the fiber material. After uniform mixing for 10-35 minutes, a pre-prepared solution mixture is added. The mixture is then thoroughly mixed for 8-12 minutes using a high-pressure spraying method while stirring. The finished solid mixture is then obtained. S5. Making blank disc body: The specific implementation method is: a certain amount of solid mixture is put into the mold cavity of a 400T servo hydraulic press, and a blank is formed by pressing once. Then the blank is taken out and put into the 350T precision pressing mold cavity for a second process, and after pressing and holding the pressure for 30 seconds, a fan-shaped blank disc body is obtained. S6. Qualitative sintering of the blank disc body: The specific implementation method is as follows: the obtained blank is placed in a tunnel kiln and treated by a curved temperature sintering process. The temperature is gradually increased from the ambient temperature, initially raised to 180℃ and dried for 1.5 hours to complete the drying and curing process of the blank body. From 180℃ to 350℃ for 2 hours, the organic materials are completely volatilized and removed, forming a porous structure. From 350℃ to 1100℃ for 2 hours, the temperature is gradually increased to complete the qualitative sintering of the blank disc body. S7. Fabrication of thermal insulation blanks: The blank discs that have been sintered in S6 are processed by machining equipment through turning, milling, edge grinding, engraving and other machining processes to obtain complete thermal insulation blanks. S8. Fabrication of blank plate module 120: Multiple blank plate modules 120 are sequentially installed into a stainless steel shell, with expansion joints reserved between adjacent blank plate modules 120, forming a circular heat-insulating heating element 100 with the same curvature as the pot. The nickel-chromium alloy heating wire is fixed as follows: the nickel-chromium alloy heating element is slit to obtain an 8mm wide and 0.12mm thick material, and then high-speed stamped into a "V" shaped tube with a height of 3mm using a precision hardware mold. It is then folded by a reciprocating folding mechanism to form a strip flat strip with a "Z" shape and a wave height of 4mm. The finished product with the "V" shape... The "V"-shaped pins and the "Z"-shaped nickel-chromium alloy heating wire are laid on a fan-shaped hardware mold through a shaping mold. The hardware mold with the heating wire laid is then placed on the curved surface of the heat insulation accessory. After aligning the positions, the heat insulation blank and the hardware mold with the heating wire laid are placed together on a punch press. The punch press moves the male mold with the heating wire laid downwards, embedding the "V"-shaped pins of the nickel-chromium alloy into the heat insulation blank, thus fixing the nickel-chromium alloy heating wire. The heating wire is laid out in a fan shape with equal intervals and parallel sides, generating a radiating heat source in the same direction, resulting in rapid heating and a more uniform heat source temperature. S9. Fabrication of the heat-insulating heating element 100: The multiple blank plate modules 120 in S8 are sequentially installed into the stainless steel shell, and an expansion gap is reserved between two adjacent blank plate modules 120 to form a circular heat-insulating heating element 100 with the same arc as the pot. The purpose of reserving an expansion gap between two blank plate modules 120 is to reduce problems such as thermal expansion and contraction and cracking caused by rapid temperature changes. Since each module is independent, the later maintenance and repair are simple. The damaged module component can be directly replaced without replacing the entire heating plate, which greatly facilitates the later maintenance, significantly reduces the maintenance difficulty and maintenance time, and saves the later maintenance cost. S10. Assemble the temperature detection probe 200 and the overload protector module 150: Insert the temperature detection probe 200 with a temperature resistance of 1300℃ into the middle of the fan-shaped blank plate module 120 of each circular heat-insulating heating element 100 in S9, so as to detect the temperature of the multiple fan-shaped blank plate modules 120 in each circular heat-insulating heating element 100 in real time. Then, install each blank plate module 120 into the overload protector module 150 for detecting overload current, so as to protect the heating module assembly.

[0036] This invention solves the problems existing in the use of traditional kitchen stoves by integrating an energy-saving large-scale pot stove radiant heating core module device into the stove. Moreover, the heating method of the energy-saving large-scale pot stove heating core module is noiseless and waste heat-free, making the operating environment clean and comfortable, optimizing the kitchen environment, not raising the operating environment temperature, eliminating the feeling of open flame roasting, eliminating radiation, improving the user experience, and making operation safer.

[0037] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for preparing an energy-saving large-scale cooktop radiant heating core module device, characterized in that, The preparation steps include the following: S1. Ingredients: Weigh out ceramic fiber cotton, silica powder, fine-porous silica gel, water, and air microspheres in sequence by weight; the specific components include: ceramic fiber cotton: 15%-23%, silica powder: 12%-18%, fine-porous silica gel: 5%-8%, water: 20%-23%, and air microspheres: 23%-28%. S2. Preparation of solution mixture: The ceramic fiber cotton, silicon powder, fine-pore silica gel, water, and air microspheres in S1 are pre-mixed and stirred to obtain a solution mixture; S3. Preparation of powder mixture: First, the ceramic fiber is crushed and separated into florets by a crusher. Then, the silicon powder and air microspheres are fed into a mixer in a certain proportion and stirred to obtain the powder mixture. S4. Preparation of finished solid mixture: A certain proportion of ceramic fiber cotton that has been broken into florets is added to a mixer. The solid mixture is stirred by the mixer to prevent the fiber solid material from agglomerating. After uniform mixing, a pre-prepared solution mixture is added. The mixture is then sprayed under high pressure while stirring to ensure thorough mixing and obtain the finished solid mixture. S5. Making the blank disc: A certain amount of solid mixture is put into the mold cavity of the servo hydraulic press and pressed to form a fan-shaped blank disc. S6. Qualitative sintering of the blank disc body: The obtained blank disc body is placed in a tunnel kiln and treated by a curved temperature sintering process. First, the blank disc body is dried and solidified, and then the organic materials are completely volatilized and removed, and finally the blank disc body is qualitatively sintered. S7. Fabrication of thermal insulation blanks: The blank discs that have been qualitatively sintered in S6 are processed by turning, milling, grinding, engraving and fine machining processes to obtain complete thermal insulation blanks. S8. Fabrication of blank plate module (120): The nickel-chromium alloy heating wire is embedded in the heat-insulating blank to complete the fixing of the nickel-chromium alloy heating wire and to make a fan-shaped blank plate module (120). S9. Making a heat-insulating and insulating heating element (100): The multiple blank disk modules (120) in S8 are sequentially installed into a stainless steel shell, and an expansion gap is reserved between two adjacent blank disk modules (120) to form a circular heat-insulating and insulating heating element (100) with the same arc as the pot. S10. Assemble the temperature detection probe (200) and the overload protector module (150): Insert the temperature detection probe (200) with a temperature resistance of 1300℃ into the middle of the fan-shaped blank plate module (120) of each circular heat-insulating heating element (100) in S9, and then insert each blank plate module (120) into the overload protector module (150) for detecting overload current.

2. The method for preparing the energy-saving large-scale cooktop radiant heating core module device as described in claim 1, characterized in that: The ceramic fiber cotton in S1 has an average fiber diameter of 3.0–3.2 µm and a fiber specific gravity of 3100 kg / m³. The average particle size of the silica powder reaches the nanoscale, and the refractory temperature is 1750℃. The fine-porous silica gel is a colorless or slightly yellow transparent glass with an average pore spacing of 2.0–3.0 nm, a specific surface area of ​​650–800 m² / g, a pore volume of 0.35–0.4 mL / g, a specific heat of 0.92 KJ / kg·℃, and a thermal conductivity of 0.63 KJ / m·hr·℃.

3. The preparation method of the energy-saving large-scale cooktop radiant heating core module device as described in claim 1, characterized in that, The specific operation method in S2-S5 is as follows: Ceramic fiber cotton, silica powder, and air microspheres are weighed and then fed into a vertical cylindrical 304 stainless steel container in proportion before water and fine-pore silica gel. The mixture is pre-stirred at 100-150 rpm for 4-5 minutes to obtain a solution mixture. The ceramic fiber is then crushed into fibrous clusters by a 1200 rpm crusher for 15 minutes. Silica powder and air microspheres are then weighed and fed into the mixing chamber of a stainless steel mixing container in a specific proportion. The mixture is then processed through a double-paddle structure. After high-speed stirring for 10 minutes to form a powdery mixture, a certain proportion of ceramic fiber cotton, which has been broken into florets, is added. The mixture is stirred by a double-set of paddles at high speed and by six sets of high-speed flying knife devices in the mixing container to prevent the fiber solid material from agglomerating. After uniform mixing for 10 to 35 minutes, a pre-prepared solution mixture is added. The mixture is then stirred and sprayed under high pressure for 8 to 12 minutes to obtain the finished solid mixture. A certain amount of the solid mixture is placed into the mold cavity of a 400T servo hydraulic press. The initial blank is formed by pressing once, and then the initial blank is taken out and placed into a 350T precision pressing mold cavity for a second process. After holding the pressure for 30 seconds, a fan-shaped blank disc is obtained.

4. The preparation method of the energy-saving large-scale cooktop radiant heating core module device as described in claim 1, characterized in that, The specific operation method in S4 is as follows: the obtained blank is placed in a tunnel kiln and processed by a curved temperature sintering process. The temperature is gradually increased from the ambient temperature, initially raised to 180℃ and dried for 1.5 hours to complete the drying and curing process of the blank. From 180℃ to 350℃ for 2 hours, the organic materials are completely volatilized and removed, forming a porous structure. From 350℃, the temperature is gradually increased to 1100℃ for 2 hours, and the qualitative sintering of the blank material is completed.

5. The preparation method of the energy-saving large-scale cooktop radiant heating core module device as described in claim 1, characterized in that, In the S6, the nickel-chromium alloy heating wire is fixed as follows: the nickel-chromium alloy heating element is slit into 8mm wide strips with a material thickness of 0.12mm. These strips are then high-speed stamped into a "V" shaped tube with a height of 3mm using precision metal molds. A reciprocating folding mechanism then forms a flat strip with a "Z" shape and a wave height of 4mm. The finished nickel-chromium alloy heating wire with "V" shaped tubes and a "Z" shaped coil is then laid onto a fan-shaped metal mold using a shaping mold. Place the metal mold with the heating wire laid on it onto the curved surface of the heat insulation accessory. After aligning the positions, place the heat insulation blank and the metal mold with the heating wire laid on it together into the punch press. The punch press moves the male mold with the heating wire laid downwards, embedding the "V"-shaped tube of the nickel-chromium alloy into the heat insulation blank, thus fixing the nickel-chromium alloy heating wire. This makes the heating wire fan-shaped, evenly spaced, and parallel to each other on the sides, generating a radiating heat source in the same direction, resulting in rapid heating and a more uniform heat source temperature.

6. The energy-saving large-scale cooktop radiant heating core module device prepared by the preparation method according to any one of claims 1-5, characterized in that: The device includes a heat-insulating heating element (100), which includes a bottom fixed mounting plate (110). Multiple blank plate modules (120) are evenly distributed on the bottom fixed mounting plate (110). Each blank plate module (120) includes a heat-insulating blank (121). Multiple nickel-chromium alloy Z-shaped heating wires (122) composed of nickel-chromium alloy heating wires are embedded on the heat-insulating blank (121). Each blank plate module (120) is provided with a heat-insulating module assembly (130) on its outer side. Each heat-insulating module assembly (130) is provided with an easy-to-remove protective plate (140) on its outer side. Each easy-to-remove protective plate (140) is provided with an overload protector module (150) on its outer side. The overload protector module (150) includes a heat insulation fixing plate seat (151) disposed on the outside of the easy-to-remove guard plate (140). The heat insulation fixing plate seat (151) is detachably disposed on the outer side wall of the heat insulation blank (121) by fasteners (152). Terminal inserts (153) are provided on the heat insulation fixing plate seat (151). A temperature detection probe (200) is provided in the middle of the heat insulation blank (121), and a temperature detection sensor is provided on the upper part of the bottom fixed mounting plate (110). The temperature detection sensor is located on the vertical line where the geometric center of the bottom fixed mounting plate (110) is located.

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