Novel bus duct inductance heating fire-resistant experiment furnace capable of rapidly heating

Abstract

The invention discloses a novel bus duct inductance heating fire-resistant experiment furnace with a rapid heating function. The experiment furnace comprises a sliding rail, a bottom plate, a movable furnace body, a copper wire, fireproof cotton, a graphite plate, a ceramic clamping groove, a thermocouple, a lock catch, a movable short furnace body, a fixed furnace body and a fixed short furnace body. The novel fireproof experiment furnace which is variable in size, movable and safe is invented by utilizing the electromagnetic induction heating principle and combining the conductivity of graphite, the experiment furnace is split into four wall bodies through the structure, and the experiment furnace can be flexibly moved and the size of the furnace body can be changed through the sliding rails. In order to solve the problems that traditional large-scale fire-resistant experiment furnaces are all fixed on the ground and cannot move, and targeted experiment objects are limited, the sliding rails are adopted, so that the two wall bodies of the furnace body can move, and the experiment furnace can move flexibly. Aiming at the problem of unsafety caused by open fire generated by combustion of fuel gas in a traditional large-scale fire resistance test furnace, the graphite is rapidly heated by electromagnetic induction heating, and the temperature in the furnace is rapidly increased in a closed space, so that the effect of rapid heating is achieved, and the danger of using the fuel gas is also avoided. In order to solve the problems that a traditional large fire-resistant test furnace is fixed in size, combustion spaces of different products are the same, and energy is not saved, the detachable wall is utilized, so that the size of the whole test furnace can be changed, and the test furnace is more energy-saving and environment-friendly in use.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of refractory combustion equipment, and particularly relates to a new type of busbar inductor heating refractory test furnace with rapid temperature rise. Background Art

[0002] Refractory test methods are widely used in fields such as construction, transportation vehicles, and electronic equipment. In the construction field, refractory test methods can be used to evaluate the fire resistance performance of various building materials to ensure the safety performance of buildings in the event of a fire. In the transportation vehicle field, refractory test methods can be used to evaluate the fire prevention performance of materials inside the vehicle to ensure the safe evacuation of passengers in the event of a fire. In the electronic equipment field, refractory test methods can be used to evaluate the fire prevention performance of electrical equipment to ensure that the equipment does not cause harm to personnel in the event of a fire.

[0003] Refractory test methods are an important means to evaluate the fire resistance performance of materials or products under fire conditions. By reasonably selecting and using appropriate refractory test methods, the fire prevention performance of materials and products can be effectively improved, and the safety of personnel and property can be guaranteed.

[0004] At present, large domestic combustion test furnaces include horizontal combustion furnaces and vertical combustion furnaces, which all use gas to burn and generate flames for experiments. Using gas in this kind of test furnace is neither safe nor energy-saving, and it can also cause problems such as incomplete gas combustion, gas leakage, and explosion. Moreover, the combustion furnace is fixed on the ground and cannot be moved, which is inconvenient for conducting refractory tests on many devices.

[0005] Although the "monolithic combustion test device for building materials" disclosed in Chinese Patent (Application No.: CN201810373301.7) filters the gas and causes less pollution to the air when discharged into the air, there are still problems of generating harmful gases and using gas unsafely. Although the "monolithic combustion equipment for building materials" disclosed in Chinese Patent (Application No.: CN202120834371.5) makes the detection items more comprehensive and the detection results more accurate, and can meet the detection needs of users, it is fixed on the ground and cannot be moved, and the equipment it can handle has limitations. Summary of the Invention

[0006] Technical problem: The present invention discloses a new type of busbar inductor heating refractory test furnace with rapid temperature rise, which includes a slide rail, a bottom plate, a movable furnace body, copper wires, fireproof cotton, graphite plates, ceramic chucks, thermocouples, latches, a movable short furnace body, a fixed furnace body, and a fixed short furnace body. The present invention utilizes the electromagnetic induction heating principle and combines the electrical conductivity of graphite to invent a new type of refractory test furnace that can change its volume, is movable, and is safe. This structure disassembles the test furnace into four walls and uses slide rails to make it movable flexibly and change the volume of the furnace body. For traditional large-scale refractory test furnaces, which are fixed on the ground and cannot be moved, the experimental objects that can be targeted are limited. The present invention uses slide rails to enable the two walls of the furnace body to move, making the test furnace movable flexibly. For the problem of the traditional large-scale refractory test furnace being unsafe due to the use of gas combustion to produce open flames, the present invention heats the graphite by using electromagnetic induction heating and forms a sealed space, avoiding the danger of using gas. For the problem of the traditional large-scale refractory test furnace having a fixed volume and the same combustion space for different products, which is not energy-saving, the present invention uses detachable walls to enable the volume of the entire test furnace to be changed, making it more energy-saving, green, and environmentally friendly.

[0007] Technical solution

[0008] The present invention discloses a new type of busbar inductor heating refractory test furnace with rapid temperature rise, which includes a slide rail, a bottom plate, a movable furnace body, copper wires, fireproof cotton, graphite plates, ceramic chucks, thermocouples, latches, a movable short furnace body, a fixed furnace body, and a fixed short furnace body. It is characterized in that: the four walls of the test furnace are disassembled into four parts, two walls are fixed to the base and cannot be moved, and there are slide rails at the bottom of the other two walls, which are movable. The movable furnace body is composed of five pieces and can be moved separately. The slide rail is connected to the movable furnace body to enable the furnace body to move; the movable furnace body can achieve block-by-block movement, and each block is equipped with an independent inductive heating device; the movable short furnace body can move back and forth on the slide rail; the furnace body is internally composed of a shell, graphite plates, fireproof cotton, and copper coil windings. The four furnace bodies are connected by latches and sealed with cotton; the graphite plates are placed close to the intracranial cavity, the copper coil windings are located beside the graphite plates, and they are separated by fireproof cotton. The copper coil windings and the shell are also separated by fireproof cotton.

[0009] The slide rail only exists at the bottom of the movable furnace body and is placed inside the bottom plate.

[0010] The bottom plate is used to protect the slide rail and is composed of fireproof cotton.

[0011] The movable furnace body is composed of five movable furnace bodies, and each furnace body has an independent inductive heating device and can work independently.

[0012] The copper wire is coiled around a plastic housing. When alternating current with a power frequency of 50 Hz is applied, the copper wire can generate a magnetic field. The changing direction of the alternating current causes the magnetic field direction to change, which makes the electrons in the graphite move violently, generating a large amount of heat and causing the temperature to rise.

[0013] The movable short furnace body is composed of a housing and fireproof cotton, and can form refractory experimental furnaces with different volumes together with the movable furnace body.

[0014] The ceramic card slot is used to fix the copper wire, so that it will not be displaced and cause short circuit during movement.

[0015] The thermocouples monitor the temperature in the furnace at all times, send feedback to the temperature control system, and control the temperature at all times. The number is 20, and 10 are placed on each of the two side walls.

[0016] The latch is connected to the wall, and the space between the walls is sealed by the latch and cotton to make it airtight.

[0017] The fixed furnace body is composed of five graphite plates corresponding to the five furnace bodies on the movable furnace body and copper wires, and can also work independently.

[0018] Aiming at the problems of traditional large-scale refractory experimental furnaces, which are fixed on the ground and cannot be moved, and the volume of the test furnace is fixed, the present invention uses slide rails to enable the two side walls of the furnace body to move, so that the test furnace can move flexibly.

[0019] Aiming at the problem that traditional large-scale refractory test furnaces are unsafe when using gas combustion to generate open flames, the present invention quickly heats the graphite by using electromagnetic induction heating and forms a sealed space, which not only makes the temperature in the furnace rise rapidly, but also avoids the danger of using gas.

[0020] Aiming at the problems of traditional large-scale refractory test furnaces with fixed volume, the combustion space for different products is the same and energy is not saved, the present invention uses a split wall, so that the volume of the entire test furnace can be changed, and it will be more energy-saving, green and environmentally friendly when used. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall refractory combustion furnace of the present invention; Figure 2 It is a schematic diagram of the structure of the movable furnace body of the refractory combustion furnace of the present invention; Figure 3 It is a schematic diagram of the structure of the fixed furnace body of the refractory combustion furnace of the present invention; Figure 4 It is a schematic diagram of the structure of the bottom plate slide rail of the refractory combustion furnace of the present invention; Figure 5 It is a schematic diagram of the enlarged structure of the latch of the refractory combustion furnace of the present invention; Figure 6 Schematic diagram of the refractory combustion fixed furnace body of the present invention; In the figure: 1 - slide rail, 2 - bottom plate, 3 - movable furnace body, 4 - copper wire, 5 - fireproof cotton, 6 - graphite plate, 7 - movable short furnace body, 8 - ceramic card slot, 9 - thermocouple, 10 - latch, 11 - fixed furnace body, 12 - fixed end furnace body.

[0023] Embodiment

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The present invention discloses a new type of busbar inductor heating refractory experimental furnace with rapid temperature rise, which includes a slide rail (1), a bottom plate (2), a movable furnace body (3), a copper wire (4), a fireproof cotton (5), a graphite plate (6), a ceramic card slot (8), a thermocouple (9), a latch (10), a movable short furnace body (7), a fixed furnace body (11), and a fixed short furnace body (12). Its characteristics are as follows: The four walls of the test furnace are split into four parts. Two walls (11) and (12) are fixed to the base and immovable, and the other two walls have slide rails (1) at the bottom and are movable. The movable furnace body is composed of five pieces and can be moved separately. The slide rail (1) is connected to the movable furnace body (3), and the slide rail is buried in the bottom plate (2). The bottom plate (2) is composed of fireproof cotton (5), which can make the furnace body move. The movable furnace body (3) can be moved in blocks, and each block is equipped with an independent inductive heating device. The movable short furnace body (7) can move back and forth on the slide rail (1). The furnace body is internally composed of a shell, a graphite plate (6), a fireproof cotton (5), and a copper coil (4). The four furnace bodies are connected by latches (10) and sealed with cotton (5). The copper coil is fixed in the ceramic card slot (8). The graphite plate (6) is placed close to the inner cavity of the furnace. The copper coil (4) is located beside the graphite plate (6), and they are separated by fireproof cotton. The copper coil (4) uses the principle of inductive heating to increase the temperature of the graphite plate (6), thereby increasing the temperature inside the furnace. The thermocouple (9) monitors the temperature change at all times and feeds it back to the computer system for temperature adjustment. The copper coil (4) is also separated from the shell by fireproof cotton (5).

[0026] Working principle: The present invention discloses a new type of busbar inductor heating refractory test furnace with rapid temperature rise, which includes a slide rail (1), a bottom plate (2), a movable furnace body (3), copper wires (4), fireproof cotton (5), a graphite plate (6), a ceramic card slot (8), a thermocouple (9), a lock (10), a movable short furnace body (7), a fixed furnace body (11), and a fixed short furnace body (12). The present invention utilizes the electromagnetic induction heating principle and combines the electrical conductivity of graphite to invent a new type of refractory test furnace with variable volume, movable, and safe. This structure disassembles the test furnace into four wall components and uses slide rails to enable flexible movement and volume change of the furnace body. For traditional large-scale refractory test furnaces, which are fixed to the ground and immovable, the test objects they can target are limited. The present invention uses slide rails to enable the movement of two walls of the furnace body, making the test furnace flexible to move. For the problem of insecurity in traditional large-scale refractory test furnaces due to the generation of open flames by gas combustion, the present invention heats the graphite plate by using electromagnetic induction heating and forms a sealed space, avoiding the danger of using gas. For the problem of fixed volume in traditional large-scale refractory test furnaces, where the combustion space is the same for different products and energy is not conserved, the present invention uses detachable walls to enable the volume of the entire test furnace to be changed, making it more energy-efficient, green, and environmentally friendly when in use.

Claims

1. The present invention discloses a new type of bus duct inductive heating refractory test furnace with rapid heating, which includes a slide rail, a bottom plate, a movable furnace body, a copper wire, fireproof cotton, a graphite plate, a ceramic slot, a thermocouple, a lock, a movable short furnace body, a fixed furnace body, and a fixed short furnace body, and is characterized in that: The four walls of the test furnace are divided into four parts, two walls are fixed on the base and cannot be moved, and the bottom of the other two walls have slide rails and are movable, wherein the movable furnace body is composed of five blocks, which can be moved separately, and the slide rails are connected to the movable furnace body, so that the furnace body can be moved; the movable furnace body can be moved in blocks, and each block is equipped with an independent induction heating device; the movable short furnace body can be moved back and forth on the slide rails; the furnace body is composed of an outer shell, a graphite plate, fireproof cotton, and a copper wire coil, and the four furnace bodies are connected by locks and sealed with cotton; the graphite plate is placed close to the intracranial cavity, and the copper wire coil is located next to the graphite plate, separated by fireproof cotton and fixed in the ceramic card slot, and the copper wire coil and the outer shell are also separated by fireproof cotton.

2. According to the novel bus duct inductive heating refractory test furnace with rapid heating according to claim 1, it is characterized by: The slide rail is only present at the bottom of the movable furnace body and is placed inside the bottom plate.

3. According to the novel bus duct inductive heating refractory test furnace with rapid heating as claimed in claim 1, it is characterized by: The bottom plate is used to protect the slide rail and is composed of fireproof cotton.

4. According to the novel bus duct inductive heating refractory test furnace with rapid heating as claimed in claim 1, it is characterized by: The movable furnace body is composed of five movable furnace bodies, each of which is provided with an independent inductive heating device and can work independently.

5. According to the novel bus duct induction heating refractory test furnace with rapid heating as claimed in claim 1, it is characterized by: The copper wire is coiled on the plastic card shell, and an alternating current of 50 Hz is passed through the copper wire to generate a magnetic field. The change in the direction of the alternating current causes the direction of the magnetic field to change, causing the electrons in the graphite to move violently, generating a large amount of heat and causing the temperature to rise.

6. The novel bus duct inductive heating refractory test furnace with rapid heating according to claim 1 is characterized in that: The movable short furnace body is composed of an outer shell and fireproof cotton, and can form a fire-resistant test furnace of different volumes with the movable furnace body.

7. The novel bus duct inductive heating refractory test furnace with rapid heating according to claim 1 is characterized in that: The ceramic clamping groove is used to fix the copper wire, and will not be displaced and contact short circuited during the movement.

8. The novel bus duct inductive heating refractory test furnace with rapid heating according to claim 1 is characterized by: Thermocouples monitor the temperature inside the furnace at all times and report it to the temperature control system to control the temperature at all times. There are 20 thermocouples in total, with 10 placed on each side of the wall.

9. The novel bus duct inductive heating refractory test furnace with rapid heating according to claim 1 is characterized in that: The lock is connected to the wall, and the walls are sealed with locks and cotton to make them airtight.

10. The novel bus duct inductive heating refractory test furnace with rapid heating according to claim 1 is characterized in that: The fixed furnace body is composed of five graphite plates and copper wires corresponding to the five furnace bodies on the movable furnace body, and can also work independently.

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