CN212253648U - High-temperature electric heating furnace capable of replacing furnace body and rapidly cooling materials - Google Patents
High-temperature electric heating furnace capable of replacing furnace body and rapidly cooling materials Download PDFInfo
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- CN212253648U CN212253648U CN202021177098.5U CN202021177098U CN212253648U CN 212253648 U CN212253648 U CN 212253648U CN 202021177098 U CN202021177098 U CN 202021177098U CN 212253648 U CN212253648 U CN 212253648U
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Abstract
A high-temperature electric heating furnace capable of replacing a furnace body and quickly cooling materials comprises an electric control system, a heating furnace body, a vacuum atmosphere system and a water cooling system, wherein the high-temperature electric heating furnace adopts a replaceable furnace body structure to adapt to different protective atmospheres required by different materials, and can respectively carry out high-temperature heating treatment on various protective atmospheres such as vacuum, inert gas, reducing gas, oxidizing gas and nitrogen on one piece of equipment. The cooling device also has a quick cooling function, can quickly cool the parts under the protection of protective atmosphere, and meets the requirements of heat treatment processes of different parts. The device has the advantages of compact integral structure, powerful functions, high production efficiency, high heating temperature, strong monitoring capability and the like, and is suitable for atmosphere sintering and heating production of various materials with different properties.
Description
Technical Field
The utility model relates to an electric heating furnace technical field. In particular to a high-temperature electric heating furnace which can change a furnace body and quickly cool materials.
Background
In industrial production, there are many materials that need to be heat treated in a certain atmosphere and pressure environment. Materials with different properties need to be heated in atmospheres with different properties and under different pressures to obtain products with corresponding quality and performance, so that the heating furnace is required to be suitable for various protective atmospheres such as vacuum, oxidation, reduction, inertia and the like. The electric heaters commonly used in the high-temperature electric heating furnace with the heating temperature higher than 1400 ℃ at present comprise silicon-molybdenum rods, molybdenum wires or molybdenum rods, tungsten wires or tungsten rods, zirconium diboride heating bodies and the like. The normal working atmosphere environment of different electric heaters at high temperature is also different, for example: the molybdenum wire or molybdenum rod electric heater is suitable for working in reducing and inert atmosphere, the tungsten wire or tungsten rod is suitable for working in vacuum atmosphere, and the silicon molybdenum rod is suitable for working in oxidizing atmosphere. The high-temperature heating furnace working under different protective atmospheres is required to adopt different electric heaters and furnace lining materials, and the high-temperature vacuum atmosphere furnace in the prior art mostly adopts fixed electric heaters and furnace lining materials, so that the requirements of various atmosphere environments cannot be met.
Meanwhile, different processes are adopted when some materials are subjected to heat treatment in a certain atmosphere, and sometimes the materials need to be rapidly cooled after the heat treatment is finished, so that the process requirements can be met, and the production efficiency can be improved. The existing high-temperature vacuum atmosphere furnace mostly has no cooling system in order to ensure the atmosphere protection effect, and can only be cooled along with the furnace in a sealed atmosphere protection environment, so that the cooling speed is low, and the production efficiency is low. In addition, the high-temperature vacuum atmosphere furnace works under a sealed condition, and the specific heating condition and temperature of parts in the hearth cannot be seen from the outside.
Therefore, how to improve the existing electric heating furnace can quickly and efficiently realize high-temperature heating under various different protective atmospheres on one heating furnace basic device; and the parts have a quick cooling function under the atmosphere protection environment, and the condition and the temperature of the heated parts in the hearth are required to be well observed in the high-temperature heating process.
SUMMERY OF THE UTILITY MODEL
The technical purpose of the utility model is that: the utility model provides a can be fast, convenient change of carrying out electric heating furnace inner furnace body, make it can adapt to the high temperature heating of different nature materials under different protective atmosphere, and can realize the quick cooling of the interior material of furnace body to can observe the high temperature electric heating furnace of the temperature situation of heated material in the furnace body in real time.
The utility model discloses a solve above-mentioned technical problem, the technical scheme who adopts is: a high-temperature electric heating furnace capable of replacing a furnace body and quickly cooling materials comprises an electric control system, a heating furnace body, a vacuum atmosphere system and a water cooling system, wherein the heating furnace body comprises a shell, a furnace body, a sealing door and a pressing cylinder, wherein the sealing door is hinged at one end of the shell, the compressing cylinder is arranged on the shell and is respectively connected with the electric control system and an external compressed air source for compressing the sealing door at the end part of the shell to realize sealing under the control of the electric control system, the bottom of the inner surface of the shell is provided with a track I, the furnace body is arranged on the track I and can be opened when the sealing door is opened, moving to the outside of the shell along the track I to realize the replacement of the furnace body, wherein one end of the furnace body is provided with a furnace door, a furnace lining, an electric heater and a thermocouple are arranged inside the furnace body, and the electric heater and the thermocouple are connected with an electric control system;
the vacuum atmosphere system comprises a vacuumizing pipeline, an atmosphere protection pipeline and a quick cooling pipeline, one end of the vacuumizing pipeline is connected to the top of the heating furnace body, a vacuum sensor, a cooling pipe, a cold trap air valve, a cold trap, a vacuum valve, a roots vacuum pump and a rotary vane vacuum pump are sequentially connected in series on the vacuumizing pipeline along the gas flow direction, the vacuum sensor, the cold trap air valve, the vacuum valve, the roots vacuum pump and the rotary vane vacuum pump are all connected with an electric control system, the vacuum valve and the cold trap air valve can be opened under the control of the electric control system, and the rotary vane vacuum pump and the roots vacuum pump are used for vacuumizing the interior of the electric heating furnace body;
the tail end of the atmosphere protection pipeline is connected to the heating furnace body, an external protection gas source, an electromagnetic gas valve, a pressure sensor and a flowmeter are sequentially connected in series along the gas flow direction on the atmosphere protection pipeline, the electromagnetic gas valve, the pressure sensor and the flowmeter are all connected with the electric control system and can be started under the control of the electric control system to fill protection gas in the electric heating furnace body, and when the pressure sensor detects that the pressure in the electric heating furnace body reaches or exceeds a set value, the electromagnetic gas valve is closed and an exhaust valve arranged on the heating furnace body is started to maintain the pressure in the electric heating furnace body at the set value;
one end of the rapid cooling pipeline is connected to the bottom of the heating furnace body, the other end of the rapid cooling pipeline and a vacuum valve in the vacuumizing pipeline are connected in parallel to the tail end of the cold trap, a cooling fan and a cooling valve are arranged on the rapid cooling pipeline in series along the gas flow direction, the cooling fan and the cooling valve are both connected with the electric control system, the cold trap gas valve and the cooling valve can be opened under the control of the electric control system, and the cooling fan is utilized to circularly cool materials in the furnace body;
the water cooling system comprises a water source, a water tank, a water pump and a water conveying pipeline, wherein a liquid level sensor is arranged at the top of the water tank, a water temperature meter is arranged inside the water tank, a water inlet valve, a water outlet valve, a water return valve and a water discharge valve are arranged on the water tank, a radiator is arranged inside the water tank and between the water inlet valve and the water outlet valve, the water conveying pipeline is connected to the water outlet valve, the tail end of the water conveying pipeline is respectively connected with a rotary vane type vacuum pump, a Roots vacuum pump, a cooling fan, a cold trap, a cooling pipe, a shell of the heating furnace body and a cooling water inlet on a sealing door, a rotary vane type vacuum pump, the Roots vacuum pump, the cooling fan, the cold trap, the cooling pipe, the shell of the heating furnace body and a cooling water outlet on the sealing door are connected with the water return, The water outlet valve, the water return valve and the water discharge valve are all connected with the electric control system and can carry out water inlet, water outlet, water return and water discharge on the water tank under the control of the electric control system so as to realize the cooling of the rotary vane vacuum pump, the Roots vacuum pump, the cooling fan, the cold trap, the cooling pipe, the shell of the heating furnace body and the sealing door.
Preferably, a high temperature thermal imager for observing the heated material in the furnace body is further provided to the housing of the heating furnace body.
Preferably, the number of the pressing cylinders is multiple, and the pressing cylinders are uniformly arranged along the circumferential direction of the sealing door.
Preferably, the number of the pressing cylinders is 4.
Preferably, the high-temperature electric heating furnace further comprises a supporting rail frame arranged outside, a rail II is arranged at the top end of the supporting rail frame, the rail II can be in butt joint with the rail I in the shell of the heating furnace body, and the furnace body in the shell can be moved and replaced.
Preferably, the exhaust valve is arranged at the top of the electric heating furnace body.
Preferably, a safety valve is further arranged at the top of the electric heating furnace body.
Preferably, a water pump in the water cooling system is arranged on one side of the radiator and used for providing water delivery power for the water delivery pipeline.
Has the advantages that:
1. the utility model discloses an electric heating furnace structural design is reasonable, and the function is various, and it is on the basic unit of a heating furnace, through the improvement of heating furnace body inside and outside structure, quick, the efficient has realized the furnace body and the change of protective atmosphere of different functions, usage. The electric heating furnace can adapt to various different materials and can selectively heat at high temperature under different protective atmospheres, so that the overall adaptability and the availability of the electric heating furnace are improved, and the investment cost of equipment is reduced. And simultaneously, the utility model discloses an electric heating furnace can also realize the quick cooling of built-in heating part under atmosphere protection environment, improves machining efficiency, has also ensured the product quality of heated material, and practical function is better.
2. The utility model discloses an electric heating furnace adopts removable furnace body structure in order to adapt to the required different protective atmosphere of different materials, can carry out the high temperature heat treatment of multiple protective atmosphere such as vacuum, inert gas (like argon gas), reducing gas (like hydrogen), oxidizing gas (like oxygen) and nitrogen gas respectively on an equipment, has the advantage of compact structure, a tractor serves several purposes, and the sexual valence relative altitude is fit for the atmosphere sintering and the heating production of multiple material.
3. The utility model discloses an electric heating furnace has quick cooling function, can carry out quick cooling to the part under protective atmosphere's protection, satisfies the thermal treatment process requirement of different parts, has improved the production efficiency of heating furnace.
4. The utility model discloses an electric heating furnace, its heating highest temperature scope is 1400-1600 ℃, the high temperature thermal imaging system who sets up on the shell, accessible display screen real-time observation furnace in by the temperature of heating part, but heating temperature is high, and monitoring capability is strong.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of the present invention;
reference numerals: 1. an electric control system, 2, a shell, 3, a furnace body, 4, a sealing door, 5, a pressing cylinder, 6, a track I, 7, a furnace door, 8, an electric heater, 9, a thermocouple, 10, a vacuumizing pipeline, 11, an atmosphere protection pipeline, 12, a quick cooling pipeline, 13, a vacuum sensor, 14, a cooling pipe, 15, a cold trap air valve, 16, a cold trap, 17, a vacuum valve, 18, a Roots vacuum pump, 19, a rotary vane vacuum pump, 20, an external protection air source, 21, an electromagnetic air valve, 22, a pressure sensor, 23, a flowmeter, 24, an exhaust valve, 25, a cooling fan, 26, a cooling valve, 27, a water source, 28, a water tank, 29, a water pump, 30, a liquid level sensor, 31, a water temperature meter, 32, a water return, 33, a water outlet valve, 34, a thermal imaging valve, 35, a drain valve, 36, a radiator, 37, a water inlet valve, a high-temperature thermal imaging instrument, 40. a safety valve.
Detailed Description
The invention is further described with reference to the following drawings and specific embodiments:
the working principle diagram of the utility model is shown in figure 1, and the appearance diagram of the device of the embodiment of the utility model is shown in figure 2 and figure 3. A high-temperature electric heating furnace capable of replacing a furnace body and rapidly cooling materials comprises an electric control system 1, a heating furnace body, a vacuum atmosphere system, a water cooling system and a high-temperature thermal imager. The electric control system 1 adopts a Siemens S7-1200 type programmable controller to control the work flow of the whole electric heating furnace, and simultaneously carries out closed-loop control on the heating temperature, the vacuum pressure, the atmospheric pressure and the like of the electric heating furnace. The heating furnace body include shell 2, furnace body 3, sealing door 4 and compress tightly cylinder 5, wherein, sealing door 4 articulates the one end that sets up at shell 2, a plurality of cylinders 5 that compress tightly set up on shell 2, and a plurality of cylinders 5 that compress tightly evenly set up along sealing door 4's circumference, every compresses tightly cylinder 5 and is connected with electrical system 1 and external compressed air supply respectively, be used for under electrical system 1's control, compress tightly sealing door 4 and realize sealedly at 2 tip of shell, 2 inner space's of shell size is for making up 900mm x 850 mm.
The furnace body 3 is arranged on the track I6 at the bottom of the inner surface of the shell 2, and can move to the outside of the shell 2 along the track I6 when the sealing door 4 is opened, so that the furnace body 3 is replaced, a furnace door 7 is arranged at one end of the furnace body 3, a furnace lining, an electric heater 8 and a thermocouple 9 are arranged in the furnace body 3, the electric heater 8 and the thermocouple 9 are connected with the electric control system 1, and the size of the inner space of the furnace hearth is 600mm multiplied by 400 mm. The electric control system 1 can start the electric heater 8 to heat the whole hearth, the thermocouple 9 can detect the temperature in the hearth in real time, the electric heater is closed when the set temperature is reached, and the closed-loop real-time control of the heating temperature of parts placed in the hearth of the furnace body 3 can be realized according to the process requirements. The whole furnace body 3 is placed in the shell 2, when the sealing door 4 is closed, the electric control system 1 can automatically start the pressing cylinder 5 to press the sealing door 4 and the shell 2, so that the whole heating furnace body forms a closed cavity capable of bearing positive pressure and negative pressure.
The vacuum atmosphere system comprises a vacuumizing pipeline 10, an atmosphere protection pipeline 11 and a quick cooling pipeline 12, one end of the vacuumizing pipeline 10 is connected to the top of the heating furnace body, a vacuum sensor 13, a cooling pipe 14, a cold trap air valve 15, a cold trap 16, a vacuum valve 17, a Roots vacuum pump 18 and a rotary-vane vacuum pump 19 are sequentially connected in series on the vacuumizing pipeline 10 along the gas flow direction, the vacuum sensor 13, the cold trap air valve 15, the vacuum valve 17, the Roots vacuum pump 18 and the rotary-vane vacuum pump 19 are all connected with the electric control system 1, the vacuum valve 17 and the cold trap air valve 15 can be opened under the control of the electric control system 1, and the rotary-vane vacuum pump 19 and the Roots vacuum pump 18 are utilized to vacuumize the interior of the electric heating furnace body;
the tail end of the atmosphere protection pipeline 11 is connected to the heating furnace body, an external protection gas source 20, an electromagnetic gas valve 21, a pressure sensor 22 and a flowmeter 23 are sequentially connected in series on the atmosphere protection pipeline 11 along the gas flow direction, the electromagnetic gas valve 21, the pressure sensor 22 and the flowmeter 23 are all connected with the electric control system 1, the electromagnetic gas valve 21 can be opened under the control of the electric control system 1, the interior of the electric heating furnace body is filled with protection gas, when the pressure sensor 22 detects that the pressure in the electric heating furnace body reaches or exceeds a set value, the electromagnetic gas valve 21 is closed, an exhaust valve 24 arranged on the heating furnace body is opened, and the pressure in the electric heating furnace body is maintained at the set value;
one end of the rapid cooling pipeline 12 is connected to the bottom of the heating furnace body, the other end of the rapid cooling pipeline is connected with the vacuum valve 17 in the vacuumizing pipeline 10 in parallel at the tail end of the cold trap 16, a cooling fan 25 and a cooling valve 26 are arranged on the rapid cooling pipeline 12 in series along the gas flow direction, the cooling fan 25 and the cooling valve 26 are both connected with the electric control system 1, the cold trap gas valve 15 and the cooling valve 26 can be opened under the control of the electric control system 1, and the cooling fan 25 is utilized to circularly cool the materials in the furnace body 3;
that is to say, the vacuum atmosphere system mainly comprises a 2X-30 rotary vane vacuum pump 19, a ZJP150 Roots vacuum pump 18, a vacuum valve 17, a vacuum sensor 13, a cooling pipe 14, an external protective gas source 20, a flowmeter 23, a pressure sensor 22, an electromagnetic gas valve 21, a safety valve 40, an exhaust valve 35, a cooling fan 25, a cooling valve 26, a cold trap 16, a cold trap gas valve 15 and the like, and mainly realizes the functions of vacuumizing, quick cooling, protective atmosphere pressure control and the like. When the furnace needs to work in a vacuum environment, the electric control system 1 opens the vacuum valve 17 and the cold trap air valve 15, starts the rotary-vane vacuum pump 19 and the Roots vacuum pump 18 to pump out the gas in the heating furnace body and exhaust the gas through the exhaust port, the vacuum degree in the furnace can be measured by the vacuum sensor 13, and the rotary-vane vacuum pump 19 and the Roots vacuum pump 18 are stopped when the set vacuum absolute pressure is reached, so that the closed-loop control of the vacuum degree is realized. When the furnace needs to work in a protective atmosphere with a certain pressure, a corresponding external protective gas source 20 can be selected, the electric control system 1 closes the vacuum valve 17, opens the electromagnetic gas valve 21, protective gas of the external protective gas source 20 can be filled into the heating furnace shell 2 and the hearth, the flow meter 23 can detect the flow of the protective gas, and the pressure sensor 22 can detect the pressure of the protective gas in the hearth; when the pressure in the furnace body 3 reaches a set value, the electric control system 1 closes the electromagnetic air valve 21; when the pressure of the protective gas in the furnace rises due to thermal expansion, the electric control system 1 opens the exhaust valve 35 to discharge redundant gas from the exhaust port, and closes the exhaust valve 35 when the pressure in the furnace reaches a set value, thereby realizing the closed-loop control of the pressure in the furnace; the safety valve 40 is a gas valve for safety protection of gas pressure in the furnace. When the parts in the hearth need to be cooled rapidly, the electric control system 1 opens the cold trap air valve 15 and the cooling valve 26, and starts the cooling fan 25 with high vacuum sealing and water cooling functions (the air volume can reach 100L/s), so that the gas enters from the lower part of the hearth and is discharged from the upper part of the hearth, and the circulating air cooling is formed on the parts in the hearth. Because the circulating air passes through the cooling pipe 14 and the cold trap 16, and the cooling pipe 14 and the cold trap 16 are cooled by adopting a circulating water cooling system, the circulating air flowing through the cooling pipe 14 and the cold trap 16 is continuously cooled, and the parts in the hearth are quickly cooled by air.
The water cooling system comprises a water source 27, a water tank 28, a WM-033 type water pump 29 (with the flow rate of 30L/min) and a water conveying pipeline, wherein the top of the water tank 28 is provided with a liquid level sensor 30, the inside of the water tank 28 is provided with a water temperature meter 31, the water tank 28 is provided with a water inlet valve 32, a water outlet valve 33, a water return valve 34 and a water drain valve 35, the inside of the water tank 28 is also provided with a radiator 36 at a position between the water inlet valve 32 and the water outlet valve 33, the water conveying pipeline is connected to the water outlet valve 33, the tail end of the water conveying pipeline is respectively connected with a rotary vane type vacuum pump 19, a Roots vacuum pump 18, a cooling fan 25, a cold trap 16, a cooling pipe 14, a cooling water inlet on the shell 2 of the heating furnace body and a cooling water inlet on the sealing door 4, the rotary vane type vacuum pump 19, the Roots vacuum pump 18, the cooling fan 25, the cold trap 16, the, the liquid level sensor 30, the water thermometer 31, the water pump 29, the water inlet valve 32, the water outlet valve 33, the water return valve 34 and the water discharge valve 35 are all connected with the electric control system 1, and can carry out water inlet, water outlet, water return and water discharge on the water tank 28 under the control of the electric control system 1, so as to realize the cooling of the rotary vane vacuum pump 19, the roots vacuum pump 18, the cooling fan 25, the cold trap 16, the cooling pipe 14, the shell 2 of the heating furnace body and the sealing door 4. The electronic control system 1 opens the water inlet valve 32 to inject water from the water source 27 into the water tank 28, when the water in the water tank 28 reaches a certain height, the liquid level sensor 30 acts, and the electronic control system 1 closes the water inlet valve 32 to realize automatic control of the water level in the water tank 28. When the water cooling system needs to work, the electric control system 1 starts the water pump 29 and opens the water outlet valve 33, water in the water tank 28 flows through the radiator 36, flows out of the water outlet valve 33 after cooling and heat dissipation, enters from the rotary vane vacuum pump 19, the roots vacuum pump 18, the cooling fan 25, the cold trap 16, the cooling pipe 14, the shell 2 of the heating furnace body and the cooling water inlet of the sealing door 4, flows out of the cooling water outlets of the devices, and finally returns to the water tank 28, so that the devices are cooled. The water temperature meter 31 can detect the water temperature in the water tank 28, and when the water temperature reaches a set temperature, the electronic control system 1 opens the drain valve 35 to drain the hot water in the water tank 28, opens the water inlet valve 32 at the same time, and puts in the cold water from the water source 27, so that the water temperature in the water tank 28 is lower than the set temperature, and the cooling effect on each device is ensured.
The utility model discloses a can carry out furnace body change and quick refrigerated high temperature electric heating furnace of material, its equipment outward appearance is shown in figure 3 when changing the furnace body. In order to ensure that the electric heating furnace can normally work under different protective atmospheres, the furnace body 3 in the heating furnace body adopts a replaceable structure, the furnace body 3 is arranged on a track I6 in the shell 2, the sealing door 4 is opened, the supporting rail frame 38 is pushed to the front of the furnace door, a track II 39 at the top of the supporting rail frame is aligned with the track I6 in the shell 2 along the length direction, the furnace body 3 can be pulled out of the furnace, and other corresponding furnace bodies 3 are replaced according to the requirements of a user heating process and are placed into the shell 2 for high-temperature heating production. For example: the furnace body which takes the silicon-molybdenum rod as a heating element and the alumina fiber as a furnace lining is suitable for high-temperature heating treatment under oxidizing atmosphere, the furnace body which takes the molybdenum wire, the molybdenum sheet or the molybdenum rod as the heating element and the molybdenum reflecting screen or the graphite felt as the furnace lining is suitable for high-temperature heating treatment under vacuum, reducing and inert atmosphere, and the furnace body which takes the tungsten wire, the tungsten sheet or the tungsten rod as the heating element and the tungsten reflecting screen as the furnace lining is suitable for high-temperature heating treatment under vacuum atmosphere.
The utility model discloses still be provided with the high temperature thermal imaging system 37 that is used for carrying out the observation to the heating material in the furnace body 3 on the shell 2 of heating furnace body. The YN-NK-S33 type in-furnace high-temperature thermal imager 37 is adopted, and the temperature of the heated parts in the hearth can be observed in real time through a display screen. The heating furnace has a maximum heating temperature in the range of 1400-1600 deg.C, and the furnace atmosphere can be vacuum, inert gas (such as argon), reducing gas (such as hydrogen), oxidizing gas (such as oxygen), nitrogen, etc. The absolute pressure can reach 0.1Pa when the vacuum furnace works in vacuum, and the working pressure can reach 0.1-0.3MPa when the vacuum furnace works in other protective atmospheres.
The utility model discloses a can carry out furnace body change and quick refrigerated high temperature electric heating furnace of material adopts removable furnace body structure in order to adapt to the required different protective atmosphere of different materials, can carry out the high temperature heat treatment of multiple protective atmosphere such as vacuum, inert gas (like argon), reducing gas (like hydrogen), oxidizing gas (like oxygen) and nitrogen gas respectively on a equipment. The utility model discloses have quick cooling function, can carry out quick cooling to the part under protective atmosphere's protection, satisfy the thermal treatment technological requirement of different parts. The utility model discloses a high temperature thermal imaging system can observe the temperature of heated part in the furnace in real time, and the highest temperature scope of heating 1400-1600 ℃, its absolute pressure can reach 0.1Pa when work is in the vacuum, and its operating pressure can reach 0.1-0.3Mpa when other protective atmosphere. The device has the advantages of compact structure, powerful function, high production efficiency, high heating temperature, strong monitoring capability and the like, and is suitable for atmosphere sintering and heating production of various materials with different properties. Thereby improving the production efficiency and saving the cost.
Claims (8)
1. The utility model provides a can carry out furnace body change and quick refrigerated high temperature electric heating furnace of material, includes electrical system (1), heating furnace body, vacuum atmosphere system and water cooling system, its characterized in that: the heating furnace body comprises a shell (2), a furnace body (3), a sealing door (4) and a pressing cylinder (5), wherein the sealing door (4) is hinged to one end of the shell (2), the pressing cylinder (5) is arranged on the shell (2) and is respectively connected with an electric control system (1) and an external compressed air source, the sealing door (4) is pressed to the end of the shell (2) to achieve sealing under the control of the electric control system (1), a track I (6) is arranged at the bottom of the inner surface of the shell (2), the furnace body (3) is arranged on the track I (6) and can move to the outside of the shell (2) along the track I (6) to achieve replacement of the furnace body (3) when the sealing door (4) is opened, a furnace door (7) is arranged at one end of the furnace body (3), and a furnace lining is arranged inside the furnace body (3), The electric heater (8) and the thermocouple (9), and the electric heater (8) and the thermocouple (9) are both connected with the electric control system (1);
the vacuum atmosphere system comprises a vacuumizing pipeline (10), an atmosphere protecting pipeline (11) and a rapid cooling pipeline (12), one end of the vacuumizing pipeline (10) is connected with the top of the heating furnace body, a vacuum sensor (13), a cooling pipe (14), a cold trap air valve (15), a cold trap (16), a vacuum valve (17), a Roots vacuum pump (18) and a rotary vane vacuum pump (19) are sequentially connected in series on the vacuum pumping pipeline (10) along the gas flow direction, the vacuum sensor (13), the cold trap air valve (15), the vacuum valve (17), the Roots vacuum pump (18) and the rotary-vane vacuum pump (19) are all connected with the electric control system (1), the vacuum valve (17) and the cold trap air valve (15) can be opened under the control of the electric control system (1), and the interior of the electric heating furnace body is vacuumized by using a rotary-vane vacuum pump (19) and a Roots vacuum pump (18);
the tail end of the atmosphere protection pipeline (11) is connected to the heating furnace body, an external protection gas source (20), an electromagnetic gas valve (21), a pressure sensor (22) and a flowmeter (23) are sequentially connected in series on the atmosphere protection pipeline (11) along the gas flow direction, the electromagnetic gas valve (21), the pressure sensor (22) and the flowmeter (23) are all connected with the electric control system (1), the electromagnetic gas valve (21) can be opened under the control of the electric control system (1), protection gas filling is carried out on the interior of the electric heating furnace body, when the pressure sensor (22) detects that the pressure in the electric heating furnace body reaches or exceeds a set value, the electromagnetic gas valve (21) is closed, an exhaust valve (24) arranged on the heating furnace body is opened, and the pressure in the electric heating furnace body is maintained at the set value;
one end of the rapid cooling pipeline (12) is connected to the bottom of the heating furnace body, the other end of the rapid cooling pipeline (12) and a vacuum valve (17) in the vacuumizing pipeline (10) are connected in parallel to the tail end of the cold trap (16), a cooling fan (25) and a cooling valve (26) are arranged on the rapid cooling pipeline (12) in series along the gas flow direction, the cooling fan (25) and the cooling valve (26) are both connected with the electric control system (1), the cold trap air valve (15) and the cooling valve (26) can be opened under the control of the electric control system (1), and materials in the furnace body (3) are circularly cooled by the cooling fan (25);
the water cooling system comprises a water source (27), a water tank (28), a water pump (29) and a water conveying pipeline, wherein a liquid level sensor (30) is arranged at the top of the water tank (28), a water temperature meter (31) is arranged inside the water tank (28), a water inlet valve (32), a water outlet valve (33), a water return valve (34) and a water drain valve (35) are arranged on the water tank (28), a radiator (36) is further arranged inside the water tank (28) and between the water inlet valve (32) and the water outlet valve (33), the water conveying pipeline is connected to the water outlet valve (33), the tail end of the water conveying pipeline is respectively connected with a rotary-vane vacuum pump (19), a roots vacuum pump (18), a cooling fan (25), a cold trap (16), a cooling pipe (14), a shell (2) of the heating furnace body and a cooling water inlet on a sealing door (4), and the rotary-vane vacuum pump (, The cooling system comprises a Roots vacuum pump (18), a cooling fan (25), a cold trap (16), a cooling pipe (14), a shell (2) of the heating furnace body and a cooling water outlet on a sealing door (4) which are connected with a water return valve (34) on a water tank (28) through pipelines, wherein a liquid level sensor (30), a water temperature meter (31), a water pump (29), a water inlet valve (32), a water outlet valve (33), the water return valve (34) and a water discharge valve (35) are all connected with an electric control system (1), and water inlet, water outlet, water return and drainage can be carried out on the water tank (28) under the control of the electric control system (1) so as to realize the cooling of a rotary vane vacuum pump (19), the Roots vacuum pump (18), the cooling fan (25), the cold trap (16), the cooling pipe (14), the shell (2) of the heating furnace body and the.
2. The high temperature electric heating furnace capable of furnace body replacement and rapid material cooling according to claim 1, characterized in that: the shell (2) of the heating furnace body is also provided with a high-temperature thermal imager (37) for observing the heating materials in the furnace body (3).
3. The high temperature electric heating furnace capable of furnace body replacement and rapid material cooling according to claim 1, characterized in that: the number of the pressing cylinders (5) is multiple, and the pressing cylinders (5) are uniformly arranged along the circumferential direction of the sealing door (4).
4. The high temperature electric heating furnace capable of furnace body replacement and rapid material cooling according to claim 3, characterized in that: the number of the pressing cylinders (5) is 4.
5. The high temperature electric heating furnace capable of furnace body replacement and rapid material cooling according to claim 1, characterized in that: the high-temperature electric heating furnace also comprises a supporting rail frame (38) arranged outside, a rail II (39) is arranged at the top end of the supporting rail frame (38), the rail II (39) can be butted with a rail I (6) in the heating furnace body shell (2), and the movement and the replacement of the furnace body (3) in the shell (2) are realized.
6. The high temperature electric heating furnace capable of furnace body replacement and rapid material cooling according to claim 1, characterized in that: the exhaust valve (24) is arranged at the top of the electric heating furnace body.
7. The high temperature electric heating furnace capable of furnace body replacement and rapid material cooling according to claim 1, characterized in that: the top of the electric heating furnace body is also provided with a safety valve (40).
8. The high temperature electric heating furnace capable of furnace body replacement and rapid material cooling according to claim 1, characterized in that: and a water pump (29) in the water cooling system is arranged on one side of the radiator (36) and is used for providing water delivery power for the water delivery pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021177098.5U CN212253648U (en) | 2020-06-23 | 2020-06-23 | High-temperature electric heating furnace capable of replacing furnace body and rapidly cooling materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021177098.5U CN212253648U (en) | 2020-06-23 | 2020-06-23 | High-temperature electric heating furnace capable of replacing furnace body and rapidly cooling materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212253648U true CN212253648U (en) | 2020-12-29 |
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| CN113340110A (en) * | 2021-06-03 | 2021-09-03 | 合肥工业大学 | Novel resistance type ultrafast temperature-changing heating furnace and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113340110A (en) * | 2021-06-03 | 2021-09-03 | 合肥工业大学 | Novel resistance type ultrafast temperature-changing heating furnace and use method thereof |
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