A heating furnace with heat preservation function

By installing a three-layer insulation structure on the outside of the heating furnace and an automated control system, the problem of poor insulation performance of the heating furnace has been solved, achieving efficient and energy-saving heating and safe operation.

CN224455406UActive Publication Date: 2026-07-03QINGDAO RUIZHIDA MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO RUIZHIDA MASCH CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing heating furnaces have poor heat preservation performance, resulting in a large amount of heat loss, increased energy consumption, reduced heating efficiency, and potential impact on the health of operators.

Method used

It adopts a three-layer insulation structure, including a high-temperature resistant insulation cotton layer, a heat insulation layer and a rock wool board layer, and works with electric heating components and temperature sensors to achieve automatic control, block heat transfer and maintain a stable temperature inside the furnace.

Benefits of technology

It effectively improves insulation, reduces energy consumption, increases heating efficiency, ensures operational safety, and lowers the ambient temperature.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224455406U_ABST
    Figure CN224455406U_ABST
Patent Text Reader

Abstract

This utility model relates to a heating furnace with heat preservation function, including a furnace body. A sealed door is provided on the front of the furnace body, and one side of the sealed door is hinged to the furnace body. The outer side of the furnace body is wrapped with an insulation layer to prevent the internal temperature of the furnace body from dropping. The insulation layer includes a high-temperature resistant insulation cotton layer, a heat insulation layer, and a rock wool board layer. The high-temperature resistant insulation cotton layer is located adjacent to the outer wall of the furnace body. The heat insulation layer is located between the high-temperature resistant insulation cotton layer and the rock wool board layer, with the rock wool board layer on the outermost side. A heating component is installed inside the furnace body to facilitate the heating of materials. This utility model, through a three-layer insulation structure, synergistically blocks heat transfer from the inside out, effectively preventing the internal temperature of the furnace body from dropping, improving the heat preservation effect, and solving the problems of poor heat preservation performance in existing heating furnaces, resulting in significant heat loss, increased energy consumption, reduced heating efficiency, and impaired heating effect. It may also lead to increased working environment temperature, affecting the health of operators.
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Description

Technical Field

[0001] This utility model relates to the field of heating furnace technology, and in particular to a heating furnace with heat preservation function. Background Technology

[0002] In modern industrial systems, heating furnaces, as a crucial type of heat processing equipment, are widely used in numerous industries, including petroleum, chemical, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, and pharmaceuticals. In the metallurgical industry, heating furnaces bear the heavy responsibility of heating materials or workpieces to rolling or forging temperatures; in the petrochemical field, they provide a suitable temperature environment for many chemical reactions.

[0003] Existing heating furnaces have poor heat preservation performance during use, resulting in a large amount of heat loss through the furnace body. This not only increases energy consumption and reduces heating efficiency, affecting heating effect, but may also lead to an increase in the working environment temperature, affecting the health of operators. Utility Model Content

[0004] In view of the technical problems in the existing heating furnace, which has poor heat preservation performance during use, a large amount of heat is lost through the furnace body, which not only increases energy consumption, reduces heating efficiency and affects heating effect, but may also lead to an increase in the working environment temperature and affect the health of operators, this utility model provides a heating furnace with heat preservation function.

[0005] The technical solution adopted by this utility model is as follows: a heating furnace with heat preservation function, including a furnace body, a sealed door provided on the front of the furnace body, one side of the sealed door being hinged to the furnace body via a hinge, the outer side of the furnace body being wrapped with a heat preservation layer to prevent the internal temperature of the furnace body from dropping, the heat preservation layer including a high-temperature resistant heat preservation cotton layer, a heat insulation layer, and a rock wool board layer, the high-temperature resistant heat preservation cotton layer being disposed adjacent to the outer wall of the furnace body, the heat insulation layer being disposed between the high-temperature resistant heat preservation cotton layer and the rock wool board layer, the rock wool board layer being disposed on the outermost side, a heating component for facilitating the heating of materials being installed inside the furnace body, the heat preservation layer wrapped on the outer side of the furnace body being composed of a high-temperature resistant heat preservation cotton layer, a heat insulation layer, and a rock wool board layer, the three-layer structure working together from the inside out to block heat transfer, effectively preventing the internal temperature of the furnace body from dropping and improving the heat preservation effect; the internal heating component facilitates the heating of materials, the overall structural design achieves an efficient combination of heating and heat preservation, meeting the stable heating requirements of materials.

[0006] Furthermore, the high-temperature resistant insulation cotton layer is made of aluminum silicate insulation cotton, and its thickness is set at 6-10cm. Aluminum silicate insulation cotton has excellent high-temperature resistance and low thermal conductivity, which can maintain good heat insulation effect in high-temperature environments. Setting the thickness at 6-10cm ensures sufficient insulation thickness to reduce heat transfer, while avoiding excessive increase in furnace volume due to excessive thickness, thus achieving a balance between insulation performance and equipment compactness.

[0007] Furthermore, the insulation layer is made of MLC multifunctional lightweight concrete with a thickness of 10-15cm. This material is lightweight, high-strength, and has low thermal conductivity, which can effectively reduce the heat transfer rate and enhance the insulation capacity of the furnace body. The thickness of 10-15cm provides sufficient insulation barrier, further reducing the loss of heat from the furnace to the outside. Combined with other insulation layers, it improves the overall insulation performance, while its lightweight nature does not excessively increase the weight of the furnace body.

[0008] Furthermore, the rock wool board layer is made of basalt fiber with a thickness of 3-5cm. Basalt fiber has good thermal insulation, fire resistance and corrosion resistance. As the outermost insulation layer, it can form an effective outer layer protection to block heat from spreading outward. The thickness of 3-5cm ensures the thermal insulation effect of the outer layer while making the insulation layer structure more compact. Moreover, the cost of basalt fiber material is relatively low, which helps to control the equipment manufacturing cost.

[0009] Furthermore, the heating assembly includes multiple mounting brackets and electric heating tubes. The multiple mounting brackets are evenly installed inside the furnace body, and the multiple electric heating tubes are respectively fixedly installed inside the multiple mounting brackets, so that the electric heating tubes are evenly distributed inside the furnace body, which can heat the material in all directions and evenly, avoid local insufficient heating or overheating, and improve heating quality and efficiency.

[0010] Furthermore, a temperature sensor is fixedly installed inside the furnace body, which can monitor the temperature changes inside the furnace in real time and accurately, providing accurate data for temperature control, facilitating timely adjustment of the heating state, ensuring that the temperature inside the furnace remains stable within the set range, and guaranteeing the consistency of the material heating effect.

[0011] Furthermore, a control panel is provided on one side of the furnace body. This control panel is electrically connected to the electric heating element and the temperature sensor, enabling automated control of the heating process. Users can easily set the target temperature via the control panel, and the system can automatically adjust the operating status of the electric heating element based on feedback from the temperature sensor, improving ease of operation while achieving precise temperature control and reducing manual intervention.

[0012] Furthermore, the bottom of the furnace body is fixedly equipped with multiple support legs arranged in a rectangular array. The bottom of each support leg is provided with an anti-slip pad, which can provide stable support for the furnace body and enhance the stability of the equipment placement. The anti-slip pads at the bottom of the support legs can increase the friction with the ground, effectively preventing the heating furnace from shifting due to vibration or other reasons during operation, improving the safety and stability of equipment operation. At the same time, the support legs raise the furnace body, reducing heat loss through ground conduction.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a three-layer insulation structure to collaboratively block heat transfer from the inside out, effectively preventing the internal temperature of the furnace from dropping and improving the insulation effect. It solves the problem that existing heating furnaces have poor insulation performance during use, resulting in a large amount of heat being lost to the outside through the furnace body. This not only increases energy consumption and reduces heating efficiency, affecting the heating effect, but may also lead to an increase in the working environment temperature, affecting the health of operators. Attached Figure Description

[0015] Figure 1 This is an overall drawing of the present invention;

[0016] Figure 2 This is an exploded view of the insulation layer of this utility model;

[0017] Figure 3 This is an enlarged view of point A of this utility model.

[0018] The following are marked in the diagram: 1. Furnace body; 2. Sealed door; 3. Insulation layer; 301. High-temperature resistant insulation cotton layer; 302. Heat insulation layer; 303. Rock wool board layer; 4. Heating component; 401. Mounting bracket; 402. Electric heating tube; 403. Temperature sensor; 404. Control panel; 5. Support leg; 6. Anti-slip mat. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 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 utility model based on the specific circumstances.

[0021] The following is in conjunction with the appendix Figures 1-3 The present invention will be further described below.

[0022] In order to solve the problems existing in the background technology, this application proposes the following technical solution: a heating furnace with heat preservation function.

[0023] The specific technical solution includes a furnace body 1, with a sealing door 2 on the front of the furnace body 1. One side of the sealing door 2 is hinged to the furnace body 1. The outside of the furnace body 1 is covered with an insulation layer 3 to prevent the internal temperature of the furnace body 1 from dropping. The insulation layer 3 includes a high-temperature resistant insulation cotton layer 301, a heat insulation layer 302, and a rock wool board layer 303. The high-temperature resistant insulation cotton layer 301 is located close to the outer wall of the furnace body 1. The heat insulation layer 302 is located between the high-temperature resistant insulation cotton layer 301 and the rock wool board layer 303. The rock wool board layer 303 is located on the outermost side. A heating component 4 is installed inside the furnace body 1 to facilitate the heating of materials.

[0024] Reference Figures 1 to 3 As shown, the high-temperature resistant insulation layer 301 is made of aluminum silicate insulation cotton with a thickness of 6-10cm. The heat insulation layer 302 is made of MLC multifunctional lightweight concrete with a thickness of 10-15cm. The rock wool board layer 303 is made of basalt fiber with a thickness of 3-5cm. The high-temperature resistant insulation layer 301, which is located adjacent to the outer wall of the furnace body 1, uses the good high-temperature resistance and heat insulation properties of aluminum silicate insulation cotton to block the heat transfer from the furnace to the outside. The middle heat insulation layer 302 further enhances the heat insulation effect and reduces the heat transfer rate through the low thermal conductivity of lightweight concrete. The outermost rock wool board layer 303 serves as an outer protective layer, using the heat insulation and fireproof properties of basalt fiber to form the last heat insulation barrier. The three-layer structure works together to significantly reduce the heat loss of the furnace body 1, ensure the stability of the furnace temperature, reduce the frequent start-up of the electric heating tube 402, and achieve energy-saving effects.

[0025] Reference Figure 1 and Figure 2As shown, the heating assembly 4 includes multiple mounting brackets 401 and electric heating tubes 402. The mounting brackets 401 are evenly installed inside the furnace body 1, and the electric heating tubes 402 are respectively fixedly installed inside the mounting brackets 401. A temperature sensor 403 is fixedly installed inside the furnace body 1. A control panel 404 is located on one side of the furnace body 1. The control panel 404 is electrically connected to the electric heating tubes 402 and the temperature sensor 403. The control panel 404 sets the target heating temperature. The control panel 404 is electrically connected to the internal electric heating tubes 402 and temperature sensor 403. After the temperature is set, the control panel 404 sends a start signal to the electric heating tubes 402. The electric heating tubes 402, installed on the evenly distributed mounting brackets 401 inside the furnace body 1, begin to work, converting electrical energy into heat energy and releasing heat to heat the material inside the furnace body 1. During the heating process, the temperature sensor 403 fixedly installed inside the furnace body 1 monitors the furnace temperature in real time and continuously feeds back the monitored temperature data to the control panel 404. The control panel 404 compares and analyzes the actual temperature feedback with the set target temperature. If the actual temperature is lower than the target temperature, the control panel 404 continues to keep the electric heating tube 402 working. When the actual temperature reaches the target temperature, the control panel 404 will control the electric heating tube 402 to stop heating or enter the heat preservation heating mode to maintain the furnace temperature stable within the set range.

[0026] Reference Figure 1 The bottom of the furnace body 1 is fixedly equipped with multiple support legs 5 arranged in a rectangular array. Each support leg 5 has an anti-slip pad 6 on its bottom. The support legs 5 raise the furnace body 1, preventing the furnace body 1 from directly contacting the ground and reducing heat loss through ground conduction. In addition, the anti-slip pad 6 on the bottom of the support legs 5 can increase the friction between the furnace body 1 and the ground, preventing the heating furnace from shifting due to vibration or other reasons during operation, and ensuring the stability and safety of the equipment operation.

[0027] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:

[0028] In use, open the sealed door, put the material into the furnace, close the sealed door, and input the target heating temperature through the control panel 404 on one side of the furnace body 1. The control panel 404 receives and stores the temperature parameter, and at the same time establishes a working connection with the electric heating tube 402 and the temperature sensor 403. The control panel 404 sends a start signal to the electric heating tube 402 installed on multiple evenly distributed mounting brackets 401 inside the furnace body 1. The electric heating tube 402 starts working, converting electrical energy into heat energy to heat the material inside the furnace body 1. The temperature sensor 403 inside the furnace body 1 monitors the furnace temperature in real time and continuously feeds back the monitored real-time temperature data to the control panel 404. If the real-time temperature is lower than the target temperature, the control panel 404 keeps the electric heating tube 402 in heating state. When the real-time temperature reaches the target temperature, the control panel 404 controls the electric heating tube 402 to stop heating or enter an intermittent heat preservation heating mode to maintain a stable furnace temperature. During the heating and heat preservation process, the heat preservation layer 3 on the outside of the furnace body 1 plays a role. The high-temperature resistant insulation cotton layer 301 adjacent to the outer wall of the furnace body 1 blocks heat transfer, the middle heat insulation layer 302 reduces the heat transfer rate, and the outermost rock wool board layer 303 forms an outer heat insulation barrier. The three-layer structure works together to reduce heat loss inside the furnace.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A heating furnace having a heat retaining function, characterized by comprising: The furnace includes a furnace body (1), a sealing door (2) is provided on the front of the furnace body (1), one side of the sealing door (2) is hinged to the furnace body (1) by a hinge, the outside of the furnace body (1) is wrapped with a heat insulation layer (3) that can prevent the temperature inside the furnace body (1) from dropping, the heat insulation layer (3) includes a high temperature resistant heat insulation cotton layer (301), a heat insulation layer (302) and a rock wool board layer (303), the high temperature resistant heat insulation cotton layer (301) is provided close to the outer wall of the furnace body (1), the heat insulation layer (302) is provided between the high temperature resistant heat insulation cotton layer (301) and the rock wool board layer (303), the rock wool board layer (303) is provided on the outermost side, and a heating component (4) is installed inside the furnace body (1) to facilitate heating of materials.

2. The heating furnace with a heat retaining function according to claim 1, characterized in that, The high-temperature resistant insulation cotton layer (301) is made of aluminum silicate insulation cotton, and its thickness is set at 6-10cm.

3. The heating furnace with a heat retaining function according to claim 1, characterized in that, The insulation layer (302) is made of MLC multifunctional lightweight concrete and has a thickness of 10-15cm.

4. The heating furnace with a heat retaining function according to claim 1, characterized in that, The rock wool board (303) is made of basalt fiber and has a thickness of 3-5cm.

5. The heating furnace with a temperature maintaining function according to claim 1, wherein The heating assembly (4) includes multiple mounting brackets (401) and electric heating tubes (402). The multiple mounting brackets (401) are evenly installed inside the furnace body (1), and the multiple electric heating tubes (402) are respectively fixedly installed inside the multiple mounting brackets (401).

6. The heating furnace with a temperature maintaining function according to claim 5, wherein A temperature sensor (403) is fixedly installed inside the furnace body (1).

7. The heating furnace with a heat retaining function according to claim 6, wherein A control panel (404) is provided on one side of the furnace body (1), and the control panel (404) is electrically connected to the electric heating tube (402) and the temperature sensor (403).

8. The heating furnace with a temperature maintaining function according to claim 1, wherein The bottom of the furnace body (1) is fixedly equipped with multiple support legs (5) arranged in a rectangular array, and the bottom of each of the multiple support legs (5) is provided with anti-slip pads (6).