Box-type resistance furnace convenient to maintain

Abstract

The utility model discloses a box-type resistance furnace convenient to maintain, which belongs to the field of box-type resistance furnaces and is characterized in that a furnace body is mounted at the upper end of a bottom box, the front end of the furnace body is connected with a sealing door through a hinge device and a locking device, and objects can be placed by opening the sealing door; the rear end of the furnace body is connected with an access door through a plurality of lock catch devices, the access door is communicated with an inner cavity of the furnace body, a sealing strip is arranged at the joint of the access door and the furnace body, a fast-assembly connector is arranged at the corner of the end face of the access door and connected with a connecting pipeline through a fast-assembly connector, and the connecting pipeline is communicated with the inner cavity of the furnace body. The access door and the connecting pipeline can be quickly dismounted by opening the locking device. The maintenance mechanism allows easy door opening and closing, the maintenance process is simplified, and the working efficiency is improved. The structure is stable, and safety risks are avoided. The quick assembly realizes quick connection and disassembly, and ensures the stability and reliability of equipment. The overhauling mechanism and the quick-mounting assembly are flexible in design and convenient to maintain. And the equipment adaptability and flexibility are improved through standardized design.

Description

Technical Field

[0001] This utility model relates to the field of box-type resistance furnaces, and in particular to a box-type resistance furnace that is easy to maintain. Background Technology

[0002] Box-type resistance furnaces are a common type of electric furnace, widely used in production and experimentation in fields such as ceramics, metallurgy, electronics, glass, chemicals, machinery, refractory materials, new material development, special materials, and building materials. Their shape resembles a rectangular box, mainly composed of the furnace body and control box. The furnace body is typically made of high-quality steel plate with folded edges and welded construction, and the surface is treated with high-temperature and corrosion-resistant paint. The furnace door is thickened and reinforced to prevent deformation, and it rotates freely, closing tightly against the furnace opening. The furnace chamber is made of high-quality insulation cotton and refractory materials to ensure good heat preservation. Heating elements are placed inside the furnace chamber; commonly used ones include resistance wire, silicon carbide rods, and silicon molybdenum rods, selected according to the heating temperature.

[0003] In actual operation, box-type resistance furnaces do indeed suffer from the disadvantage of time-consuming and labor-intensive maintenance due to the numerous pipes located at the rear of the furnace body. Specifically, when damage occurs inside the furnace or at pipe interfaces, the large number and complex layout of the pipes make locating the damaged area time-consuming. This requires maintenance personnel to possess not only extensive professional knowledge but also a deep understanding of the furnace structure. Secondly, since the pipes are usually located at the rear of the furnace, and some may extend deep into the furnace body, the maintenance space is limited, increasing the difficulty of maintenance. Maintenance personnel may need to disassemble parts of the furnace structure or pipes to access the damaged area for repair, which is not only time-consuming and labor-intensive but may also cause secondary damage to the furnace body. In addition, for pipes made of certain special materials, such as high-temperature resistant combustion tubes or silicon carbide rods, repair or replacement may require specific tools and techniques, which also increases the complexity and time consumption of maintenance. Utility Model Content

[0004] The main objective of this invention is to provide a box-type resistance furnace that is easy to maintain, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A box-type resistance furnace that is easy to maintain includes a bottom box, with support feet at the four corners of the bottom end of the bottom box, and heat dissipation vents on the side wall of the bottom box. The furnace body is installed at the top of the bottom box, and a sealing door is connected to the front end of the furnace body through a hinge device and a locking device. Objects can be placed by opening the sealing door.

[0007] The rear end of the furnace body is connected to an inspection door via multiple locking devices. The inspection door is connected to the inner cavity of the furnace body. A sealing strip is provided at the connection between the inspection door and the furnace body. A quick-installation interface is provided at the corner of the end face of the inspection door. The quick-installation interface is connected to a connecting pipe via a quick-installation connector. The connecting pipe is connected to the inner cavity of the furnace body. The inspection door and connecting pipe can be quickly removed by opening the locking devices.

[0008] As a preferred embodiment of this utility model, the inner wall of the inspection door is provided with a square groove, and a sealing strip is connected to the groove of the square groove by an adhesive. The sealing strip on the inspection door is tightly pressed against the furnace body. The sealing strip is a high-temperature resistant rubber strip.

[0009] As a preferred embodiment of this utility model, the locking device is divided into a fixed base, a locking part and a connecting base. The fixed base is fixed to the inspection door by bolts, the locking part is connected to the connecting base, and the connecting base is fixed to the furnace body by bolts. The locking part is moved to fix it to the fixed base, and the sealing strip on the inspection door is squeezed to make it fit tightly against the furnace body.

[0010] As a preferred embodiment of this utility model, the quick-installation interface passes through the opening on the end face of the inspection door, the inner end of the quick-installation interface is provided with a protrusion, the quick-installation interface is fixed on the inspection door, a sealing ring is provided at the connection between the quick-installation interface and the inspection door, and the opening of the quick-installation interface is provided with threads.

[0011] As a preferred embodiment of this utility model, the quick-connect coupling is connected to the quick-connect interface via threads, and a sealing ring is provided at the connection between the quick-connect interface and the quick-connect coupling. The quick-connect coupling is connected to the connecting pipe via a connecting flange.

[0012] As a preferred embodiment of this utility model, a sealing plug is provided at the connection between the quick-installation interface and the inspection door.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The design of the maintenance mechanism allows for easy opening and closing of the maintenance door, and the simple operation of the locking device significantly reduces maintenance time. Simultaneously, the application of quick-connect components allows for rapid connection and disconnection of pipes with quick-connect fittings, further simplifying the maintenance process and improving work efficiency. The robust structural design of the maintenance mechanism ensures the maintenance door is securely fixed to the furnace body, preventing safety hazards caused by the door falling off or loosening during maintenance. The tight connection of the quick-connect components can withstand certain working pressure and temperature fluctuations, ensuring the stability and reliability of the equipment.

[0015] The sealing strip at the connection between the inspection door and the furnace body, as well as the sealing ring at the connection between the quick-connect interface and the quick-connect connector, together ensure the sealing performance of the resistance furnace during maintenance. Furthermore, the design of the sealing plug effectively prevents air and heat leakage, guaranteeing the thermal efficiency and safety of the resistance furnace during operation.

[0016] The equipment's maintenance mechanism and quick-connect components are designed flexibly, allowing for disassembly and replacement as needed, facilitating inspection and maintenance of the furnace cavity. Furthermore, the standardized design of the quick-connect components enables interchangeable use of different models of connecting pipes and quick-connect fittings, improving the equipment's adaptability and flexibility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a rear view of the overall structure of this utility model;

[0019] Figure 3 The diagram shows the inspection door, locking device, and quick-installation components of this utility model.

[0020] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0021] In the diagram: 1. Base box; 2. Support legs; 3. Heat dissipation vent; 4. Furnace body; 5. Sealed door; 6. Inspection door; 7. Locking device; 8. Quick-connect interface; 9. Quick-connect connector; 10. Connecting pipe. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1 - Figure 4 As shown, a box-type resistance furnace that is easy to maintain mainly consists of a base box 1. Support feet 2 are specially designed at the four corners of the lower end of the base box 1 to ensure the stability of the resistance furnace during use. To effectively dissipate the heat generated by the resistance furnace during operation, multiple heat dissipation vents 3 are provided on the side walls of the base box 1. The furnace body 4 is installed at the upper part of the base box 1. The front end of the furnace body 4 is cleverly connected to a sealing door 5 via a hinge and locking device, allowing the user to easily open the sealing door 5 when placing objects to be heated.

[0024] Multiple locking devices 7 are designed at the rear end of the furnace body 4. These locking devices 7 are used to connect the inspection door 6, ensuring the communication between the inspection door 6 and the inner cavity of the furnace body 4. A sealing strip is specially installed at the connection point between the inspection door 6 and the furnace body 4 to ensure the airtightness of the furnace body 4 during maintenance. To further facilitate maintenance operations, a quick-connect interface 8 is specially designed at the corner of the end face of the inspection door 6. This interface is connected to the connecting pipe 10 via a quick-connect fitting 9, and the connecting pipe 10 is also connected to the inner cavity of the furnace body 4. When maintenance is required, the inspection door 6 and the connecting pipe 10 can be quickly removed simply by opening the locking devices 7.

[0025] The inner wall of the inspection door 6 is designed with a square groove, within which a sealing strip is securely attached using adhesive. This sealing strip adheres tightly to the furnace body 4, ensuring a tight seal during maintenance. The sealing strip is made of high-temperature resistant rubber, capable of withstanding the environmental impact of the resistance furnace operating at high temperatures.

[0026] The locking device 7 is ingeniously designed, consisting of three parts: a fixed base, a locking part, and a connecting base. The fixed base is bolted to the inspection door 6, the locking part is connected to the connecting base, and the connecting base is bolted to the furnace body 4. By moving the locking part, it can be fixed to the fixed base and the sealing strip on the inspection door 6 is compressed, making it fit more tightly against the furnace body 4, thus achieving a good sealing effect.

[0027] The quick-connect interface 8 is designed as an opening passing through the end face of the access door 6, with a protrusion on its inner end to ensure the stability of the interface. The quick-connect interface 8 is fixed to the access door 6, and a sealing ring is fitted at the connection between the interface and the access door 6 to prevent heat and gas leakage. The opening of the interface is also threaded for threaded connection with the quick-connect fitting 9.

[0028] The quick-connect coupling 9 connects to the quick-connect interface 8 via threads, ensuring a tight connection. A sealing ring is also provided at the connection point between the quick-connect interface 8 and the quick-connect coupling 9 to further guarantee the sealing effect. The quick-connect coupling 9 connects to the connecting pipe 10 via a connecting flange; the use of the flange increases the stability and reliability of the connection.

[0029] To ensure the airtightness of the maintenance door 6 when it is closed, a sealing plug is specially designed at the connection between the quick-connect interface 8 and the maintenance door 6. This plug can effectively prevent the leakage of air and heat, ensuring the thermal efficiency and safety of the resistance furnace during operation.

[0030] Operating Procedure: Ensure the resistance furnace is placed on a stable, level surface. Check that the power cord and power socket are intact. Press the locking device, then rotate the hinge to open the sealing door 5. Place the object to be heated into the furnace body 4. Rotate the hinge, then press the locking device to ensure the sealing door 5 is completely closed. Connect the power cord to the power source. Set the temperature and heating time as needed. Start the resistance furnace to begin the heating process. Monitor the heating process using the temperature controller and timer. Adjust the temperature and time settings as needed. After heating is complete, turn off the power. Wait for the furnace body 4 to cool to a safe temperature. Open the sealing door 5 and remove the heated object.

[0031] Disassembly and Maintenance Procedure: Ensure the resistance furnace has completely cooled. Disconnect the power supply to ensure the equipment is de-energized. Move the locking mechanism to disengage it from the mounting base. Gently pull open the access door 6 to separate it from the furnace body 4. Since the access door 6 is connected to the inner cavity of the furnace body 4, it facilitates maintenance of the furnace body 4's interior. Rotate the quick-connect connector 9 counterclockwise to separate it from the quick-connect interface 8. Remove the connecting pipe 10 from the connecting flange. Inspect the interior of the furnace body 4 for any damage or areas requiring repair. Perform necessary cleaning, parts replacement, or maintenance. Reconnect the connecting pipe 10 to the connecting flange. Thread the quick-connect connector 9 to the quick-connect interface 8. Reinstall the access door 6 onto the furnace body 4, ensuring the locking device 7 is correctly secured. After ensuring the access door 6 is closed, check that the sealing plug effectively prevents air and heat leakage. Perform a simple heating test to ensure the equipment operates without leakage. Confirm that all components are correctly installed and secure. Reconnect the power supply and perform a normal operation test to ensure the equipment functions properly.

[0032] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A box-type resistance furnace that is easy to maintain, characterized in that: Includes a base box (1), with support feet (2) at the four corners of the lower end of the base box (1), and heat dissipation vents (3) on the side wall of the base box (1). A furnace body (4) is installed at the upper end of the base box (1), and a sealing door (5) is connected to the front end of the furnace body (4) through a hinge device and a locking device. An object can be placed by opening the sealing door (5). The rear end of the furnace body (4) is connected to an inspection door (6) via multiple locking devices (7). The inspection door (6) is connected to the inner cavity of the furnace body (4). A sealing strip is provided at the connection between the inspection door (6) and the furnace body (4). A quick-install interface (8) is provided at the corner of the end face of the inspection door (6). The quick-install interface (8) is connected to a connecting pipe (10) via a quick-install connector (9). The connecting pipe (10) is connected to the inner cavity of the furnace body (4). The inspection door (6) and the connecting pipe (10) can be quickly removed by opening the locking device (7).

2. The easily maintainable box-type resistance furnace according to claim 1, characterized in that: The inner wall of the inspection door (6) is provided with a square groove, and a sealing strip is connected in the groove of the square groove by an adhesive. The sealing strip on the inspection door (6) is tightly pressed against the furnace body (4). The sealing strip is a high temperature resistant rubber strip.

3. A box-type resistance furnace that is easy to maintain according to claim 2, characterized in that: The locking device (7) is divided into a fixed seat, a locking part and a connecting seat. The fixed seat is fixed to the inspection door (6) by bolts. The locking part is connected to the connecting seat. The connecting seat is fixed to the furnace body (4) by bolts. The locking part is moved to fix it to the fixed seat and the sealing strip on the inspection door (6) is squeezed to make it fit tightly against the furnace body (4).

4. A box-type resistance furnace that is easy to maintain according to claim 3, characterized in that: The quick-install interface (8) passes through the opening on the end face of the inspection door (6). The inner end of the quick-install interface (8) is provided with a protrusion. The quick-install interface (8) is fixed on the inspection door (6). A sealing ring is provided at the connection between the quick-install interface (8) and the inspection door (6). The opening of the quick-install interface (8) is provided with a thread.

5. A box-type resistance furnace that is easy to maintain according to claim 4, characterized in that: The quick-connector (9) is connected to the quick-connect interface (8) by threads, and a sealing ring is provided at the connection between the quick-connect interface (8) and the quick-connector (9). The quick-connector (9) is connected to the connecting pipe (10) by a connecting flange.

6. A box-type resistance furnace that is easy to maintain according to claim 5, characterized in that: A sealing plug is provided at the connection between the quick-installation interface (8) and the inspection door (6).

Images