CN216745477U - Heating device for resistance furnace - Google Patents
Heating device for resistance furnace Download PDFInfo
- Publication number
- CN216745477U CN216745477U CN202122986368.8U CN202122986368U CN216745477U CN 216745477 U CN216745477 U CN 216745477U CN 202122986368 U CN202122986368 U CN 202122986368U CN 216745477 U CN216745477 U CN 216745477U
- Authority
- CN
- China
- Prior art keywords
- heat insulation
- heat
- thermal
- insulated
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Furnace Details (AREA)
Abstract
The utility model discloses a heating device for resistance furnace, including thermal-insulated subassembly and heating element, thermal-insulated subassembly includes the heat screen of a plurality of range upon range of settings, and heating element includes a plurality of heaters, and heating element is located thermal-insulated subassembly, and the temperature of furnace chamber in the heating element control furnace body, thermal-insulated subassembly reflect the heat of heating element radiation, prevent that the heat scatters and disappears, the utility model discloses utilize the heat screen of range upon range of setting, the successive layer reflects the heat of heater radiation, effectively prevents that the heat scatters and disappears and reduce furnace internal surface temperature, the utility model discloses at thermal-insulated thorax surface along a plurality of thermal-insulated loop bars of axis direction design, thermal-insulated loop bar surface radian matches with the arc of furnace chamber, and the intensity of the range upon range of installation of thermal-insulated loop bar can be strengthened to thermal-insulated loop bar, guarantees stability, the utility model discloses the heater adopts high temperature resistance heating element, and a plurality of heaters are evenly arranged along thermal-insulated thorax axial interval in proper order.
Description
Technical Field
The utility model belongs to the resistance furnace field relates to a heating device for be used for resistance furnace.
Background
The vacuum resistance furnace is mainly to treat in the heat treated goods is sent into the stove, closes the furnace gate, heats after the evacuation in the stove and cools off after the technology sets for the temperature after to technology temperature, is used for the heat treatment of goods under the vacuum condition, current vacuum resistance furnace when guaranteeing great vacuum value, the relatively poor problem of temperature homogeneity takes place easily after heating, can not satisfy high-quality goods requirement, and cooling rate is slow, and production efficiency is low, and does not possess the binder removal function, has certain influence to goods and equipment, the utility model discloses this kind of problem has been solved effectively.
Disclosure of Invention
The utility model provides a heating device for be used for resistance furnace in order to overcome prior art not enough.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a heating device for a resistance furnace, characterized by: including thermal-insulated subassembly and heating element, thermal-insulated subassembly includes the heat screen of a plurality of range upon range of settings, and heating element includes a plurality of heaters, and heating element is located thermal-insulated subassembly, and the temperature of furnace chamber in the heating element control furnace body, thermal-insulated subassembly reflect the heat of heating element radiation, prevent that the heat scatters and disappears.
Further, the method comprises the following steps of; the heat insulation assembly comprises a heat insulation sealing cover, a heat insulation chamber and a heat insulation mounting cover, the heat insulation sealing cover is fixedly mounted at one end of the heat insulation chamber, the heat insulation mounting cover is detachably mounted at the other end of the heat insulation chamber, the heat insulation sealing cover, the heat insulation chamber and the heat insulation mounting cover form a heat insulation cavity, and the heating assembly is mounted in the heat insulation cavity.
Further, the method comprises the following steps of; the heat-insulating sealing cover, the heat-insulating chamber and the heat-insulating mounting cover are respectively stacked by a plurality of heat-insulating screens, the shapes of the heat-insulating screens positioned at the positions of the heat-insulating sealing cover, the heat-insulating chamber and the heat-insulating mounting cover are respectively matched with the shapes of the heat-insulating sealing cover, the heat-insulating chamber and the heat-insulating mounting cover, and the plurality of heat-insulating screens of the heat-insulating chamber are sequentially stacked inwards along the radial direction of the heat-insulating chamber.
Further, the method comprises the following steps of; the outer surface of the heat insulation chamber is provided with a plurality of heat insulation ring rods along the axis direction, the radian of the outer surface of each heat insulation ring rod is matched with the arc of the inner surface of the furnace chamber, the heat insulation ring rods enhance the strength of the laminated installation of the heat insulation screen, and one end of the heat insulation chamber is also provided with a heat insulation mounting angle which is used for installing the heat insulation chamber and the heat insulation mounting cover; the heat insulation chamber is fixedly provided with a heat insulation mounting block which is used for mounting the inner surface of the furnace chamber.
Further, the method comprises the following steps of; the heater is fixedly connected with the heat shield through a plurality of connecting and fixing devices, the connecting and fixing devices are distributed along the circumferential direction of the heat insulation chamber, each connecting and fixing device comprises a connecting and fixing rod, the upper end of each connecting and fixing rod upwards sequentially penetrates through the heat shield and extends to the outer side of the heat insulation chamber, the upper end of each connecting and fixing rod is fixed on the outer surface of the heat insulation chamber through a fixing piece, and the lower end of each connecting and fixing rod penetrates through the heater and is fixed on the inner surface of the heater through the fixing piece.
Further, the method comprises the following steps of; the connecting fixing rod is sleeved with a plurality of first positioners and second positioners, the first positioners are located between adjacent heat shields, so that the distance between the adjacent heat shields is the same, the heat shields are convenient to install, and the second positioners are located between the inner heat shields and the heaters, so that the distance between the heaters and the heat shields is the same.
Further, the method comprises the following steps of; the water-cooled electrode is used for supplying power to the heater and is cooled by cooling water.
Further, the method comprises the following steps of; and the heaters are sequentially arranged at intervals along the axial direction of the heat insulation chamber.
Further, the method comprises the following steps of; the heater is located the thermal-insulated cavity, and the heater adopts tubular structure, and the heater adopts high temperature resistance heating element.
Further, the method comprises the following steps of; the heat insulation chamber is of a cylindrical tubular structure, the heat shield is made of high-temperature-resistant materials, and heat radiated by the heater is reflected back to the heat insulation cavity layer by layer.
To sum up, the utility model discloses an useful part lies in:
the utility model utilizes the heat shield which is arranged in a stacking way to reflect the heat radiated by the heater layer by layer, thereby effectively preventing the heat from being dissipated and reducing the temperature of the inner surface of the furnace chamber, the utility model designs a plurality of heat insulation ring rods on the outer surface of the heat insulation chamber along the axial direction, the radian of the outer surface of the heat insulation ring rods is matched with the arc shape of the inner surface of the furnace chamber, the heat insulation ring rods can strengthen the strength of the stacking installation of the heat shield and ensure the stability, the utility model adopts high-temperature resistance heating elements, a plurality of heaters are arranged along the axial direction of the heat insulation chamber at intervals in sequence, thereby ensuring the uniform heat distribution in the heat insulation chamber and obtaining the high-precision temperature uniformity in the furnace, thereby improving the product quality, reducing the energy consumption and improving the production efficiency, the utility model designs and connects the fixing device to connect the heater and the heat shield, and the first positioner which is sleeved by the connecting fixing rod is positioned between the adjacent heat shields, the interval that makes adjacent heat shield is the same, makes things convenient for the installation of heat shield simultaneously, and the second locator of connecting the dead lever cover and establishing is located between inlayer heat shield and the heater, makes the interval of a plurality of heaters and heat shield keep invariable, the utility model discloses a water-cooling electrode is to the heater power supply, and water-cooling electrode 33 self and receive radiation temperature rise the back, and the cooling water cools off water-cooling electrode, can effectively improve water-cooling electrode's life.
Drawings
Fig. 1 is a schematic view of a high vacuum resistance furnace according to the present invention.
Fig. 2 is a schematic diagram of a high vacuum resistance furnace of the present invention.
Fig. 3 is a schematic view of the vacuum system of the present invention.
Fig. 4 is a schematic view of a half-section of the device in the furnace body of the utility model.
Fig. 5 is a schematic view of the heating device of the present invention.
Fig. 6 is an enlarged schematic view of a in fig. 4.
Fig. 7 is a schematic view of the cooling device of the present invention.
Fig. 8 is a schematic view of the cold air distributor according to the present invention.
Fig. 9 is a schematic half-sectional view of the cold air distributor according to the present invention.
Fig. 10 is a schematic view of the process piping system of the present invention.
Fig. 11 is a schematic view of the graphite apparatus of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
In the embodiment of the present invention, all the directional indicators (such as upper, lower, left, right, front, rear, horizontal, and vertical … …) are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indicator is changed accordingly.
The first embodiment is as follows:
as shown in fig. 1 to 11, a heating device for a resistance furnace comprises a vacuum system 1, a furnace body 2, a heating device 3, a cooling device 4, a process pipeline system 5 and a graphite device 6, wherein the vacuum system 1 and the process pipeline system 5 are installed outside the furnace body 2, the heating device 3, the cooling device 4 and the graphite device 6 are installed inside the furnace body 2, the vacuum system 1 comprises a vacuum pipeline and a degreasing mechanism, the vacuum pipeline controls the vacuum degree of the furnace body 2 in different process stages, the degreasing mechanism performs degreasing treatment on mixed gas, the heating device 3 controls the temperature inside the furnace body 2, the cooling device 4 controls the cooling speed of products, the process pipeline system 5 inputs gas to the furnace body for different processes of the furnace body 2, and the graphite device 6 is used for loading the products.
The mixed gas is a gas obtained by mixing the binder and the forming agent in the product with a process gas, a nitrogen gas, or the like during the heat treatment.
The vacuum system 1 comprises a vacuum pipeline and a degreasing mechanism, the vacuum pipeline at least comprises a first-stage vacuum pipeline, a second-stage vacuum pipeline and a third-stage vacuum pipeline, the first-stage vacuum pipeline, the second-stage vacuum pipeline and the third-stage vacuum pipeline control the vacuum degrees of the furnace bodies in different process stages, and the degreasing mechanism conducts degreasing treatment on the mixed gas.
The primary vacuum pipeline comprises a primary pump 111, a primary valve 112, a secondary primary valve 113 and a tertiary primary valve 114, the secondary vacuum pipeline comprises a secondary pump 121, a primary secondary valve 122, a secondary valve 123 and a tertiary secondary valve 124, the tertiary vacuum pipeline comprises a primary pump 131 and a main valve 132, the main valve 132 is communicated with the furnace body 2 through a vacuum air inlet pipe 14, all the parts of the primary vacuum pipeline, the secondary vacuum pipeline and the tertiary vacuum pipeline are communicated through pipelines (not shown in the figure), the degreasing mechanism comprises a degreasing tank 15 and a degreasing tank 16, the workpiece degreasing passage comprises the tertiary primary valve 114 for introducing mixed gas, the degreasing tank 15 for degreasing mixed gas and the secondary primary valve 113 for leading out mixed gas, the furnace body 2, the vacuum air inlet pipe 14, the tertiary primary valve 114, the degreasing tank 15, the secondary primary valve 113, the primary pump 111 and the grease collecting tank 16 form a primary vacuum degree control passage (or degreasing passage), the primary pump 111 controls the vacuum degree of the furnace body 2, and the vacuum degree range is set to be 1-10 Pa; the mixed gas circulates along the first-stage vacuum degree control passage, grease in the mixed gas is degreased through the degreasing box 15, the tail gas of the mixed gas and waste generated by system operation are discharged into the grease collection box 16 through the primary pump 111, and the system is prevented from being damagedPollution; the furnace body 2, the vacuum inlet pipe 14, the main valve 132, the secondary valve 123, the secondary pump 121, the primary valve 112, the primary pump 111, and the grease collecting tank 16 form a secondary vacuum degree control passage, the secondary pump 121 and the primary pump 111 control the vacuum degree of the furnace body 2, and the vacuum degree range is set to 10-1-10-2Pa; the furnace body 2, the vacuum intake pipe 14, the main valve 132, the main pump 131, the primary secondary valve 122, the secondary pump 121, the primary valve 112, the primary pump 111, and the grease collecting tank 16 form a three-stage vacuum degree control path, the main pump 131, the secondary pump 121, and the primary pump 111 control the vacuum degree of the furnace body 2, and the vacuum degree range is set to 10-3-10-4Pa; the vacuum system 1 carries out vacuum-pumping treatment on the furnace body 2 to ensure that 10 parts of a product are heated in the heating process-3～10-4Pa vacuum degree is required, and the binder and the forming agent in the product are discharged into a grease collecting box 16 outside the furnace and cleaned uniformly.
The furnace body 2 comprises a furnace door 21, a furnace chamber 22 and a furnace tail 23, the furnace door 21, the furnace chamber 22 and the furnace tail 23 are respectively of a double-layer structure, the double-layer structure is specifically divided into an outer layer positioned on the outer side and an inner layer positioned on the inner side, an interlayer is formed between the outer layer and the inner layer, the interlayer keeps a sealing state except an inlet and an outlet, a cooling medium is introduced into the interlayer, the temperature rise of the outer surface of the furnace body is not more than 25 ℃, the cooling medium can adopt cooling water or gas, only the cooling effect on the furnace body 2 can be realized, the inner layer adopts a vacuum airtight structure, and the leakage rate of the furnace body 2 is not more than 1.3x10-7Pa.L/s, the outer layer and the inner layer can be made of steel materials, a furnace chamber 24 is arranged in the hearth 22, a heating device 3, a cooling device 4, a graphite device 6 and other related equipment are arranged in the furnace chamber 24, the heating device 3 is arranged in the cooling device 4, the graphite device 6 is arranged in the heating device 3, and the vacuum system 1, the process pipeline system 5 and other related equipment are arranged outside the furnace body 2, so that the occupied area of the equipment is reduced; a furnace body supporting frame 25 is fixedly arranged below the furnace body 2, and the furnace body supporting frame 25 is used for supporting the furnace body 2.
The heat insulation assembly comprises a heat insulation sealing cover 35, a heat insulation chamber 30 and a heat insulation mounting cover 37, the heat insulation sealing cover 35 is fixedly mounted at one end of the heat insulation chamber 30, the heat insulation mounting cover 37 is detachably mounted at the other end of the heat insulation chamber 30, the heat insulation sealing cover 35, the heat insulation chamber 30 and the heat insulation mounting cover 37 form a heat insulation cavity, and the heating assembly is mounted in the heat insulation cavity.
The heat-insulating sealing cover 35, the heat-insulating chamber 30 and the heat-insulating mounting cover 37 are respectively stacked by a plurality of heat-insulating screens 31, and the shapes of the heat-insulating screens 31 at the positions of the heat-insulating sealing cover 35, the heat-insulating chamber 30 and the heat-insulating mounting cover 37 are respectively matched with the shapes of the heat-insulating sealing cover 35, the heat-insulating chamber 30 and the heat-insulating mounting cover 37, the heat insulation chamber 30 is of a cylindrical tubular structure, the heat shields 31 are sequentially and inwardly stacked along the radial direction of the heat insulation chamber 30, the heat shields 31 are made of high-temperature-resistant materials, heat radiated by the heater 32 is reflected back to the heat insulation cavity layer by layer to prevent heat loss, a plurality of heat insulation ring rods 301 are arranged on the outer surface of the heat insulation chamber 30 along the axial direction, the radian of the outer surfaces of the heat insulation ring rods 301 is matched with the arc shape of the inner surface of the furnace chamber 24, the heat insulation ring rods 301 can enhance the stacking installation strength of the heat shields 31 to ensure the stability, a heat insulation installation angle 302 is further arranged at one end of the heat insulation chamber 30, and the heat insulation installation angle 302 is used for installing the heat insulation chamber 30 and the heat insulation installation cover 37; the heat insulation chamber 30 is fixedly provided with a heat insulation mounting block 34, and the heat insulation mounting block 34 is used for mounting the heating device 3 on the inner surface of the hearth 22.
The heating assembly is located in the heat insulation cavity, the heater 32 is of a cylindrical structure, high-temperature resistance heating elements are adopted, such as nichrome, molybdenum, graphite, tungsten and the like, suitable materials can be selected according to different working temperatures of equipment, the heaters 32 are sequentially and uniformly distributed at intervals along the axial direction of the heat insulation chamber 30 to ensure uniform heat distribution in the heat insulation cavity, the heater 32 is fixedly connected with the heat shield 31 through a plurality of connecting and fixing devices 36, specifically, the connecting and fixing devices 36 are uniformly distributed along the circumferential direction of the heat insulation chamber 30 to ensure the installation stability of the heater 32, the connecting and fixing devices 36 comprise connecting and fixing rods 362, according to the visual angle shown in figure 6, the upper ends of the connecting and fixing rods 362 upwards sequentially penetrate through the heat shield 31 and extend to the outer side of the heat insulation chamber 30 and enable the upper ends of the connecting and fixing rods 362 to be fixed on the outer surface of the heat insulation chamber 30 through corresponding fixing devices, the lower ends of the connecting and fixing rods 362 penetrate through the heaters 32 and enable the lower ends of the connecting and fixing rods 362 to be fixed on the heating cavity through corresponding fixing devices The inner surface of the device 32 is further provided with a plurality of first locators 361 and second locators 363 which are sleeved on the connecting fixing rod 362, the first locators 361 are located between the adjacent heat shields 31, the distance between the adjacent heat shields 31 is the same, the heat shields 31 are convenient to install, and the second locators 363 are located between the inner heat shields 31 and the heaters 32, so that the distance between the heaters 32 and the heat shields 31 is kept constant.
The water-cooled electrode 33 sequentially penetrates through the hearth 22 and the heat insulation chamber 30 and is connected with the heater 32, and in the embodiment, the water-cooled electrode 33 is used for supplying power to the heater 32, so that after the water-cooled electrode 33 is radiated and raised, the water-cooled electrode 33 is cooled by cooling water, and the service life of the water-cooled electrode 33 can be effectively prolonged.
The cooling device 4 includes a hot air circulation mechanism and a cooling mechanism, the hot air circulation mechanism includes a fan 41 and an exhaust assembly, the cooling mechanism includes a heat exchanger 44, and the hot air circulation mechanism and the cooling mechanism discharge heat in the furnace chamber 24 out of the furnace body 2 through heat exchange.
The hot air circulation mechanism comprises a fan 41 and an exhaust assembly, the fan 41 is arranged in the furnace tail 23, the exhaust assembly is positioned in the furnace chamber 24, the exhaust assembly comprises a cold air distributor 42 and a cold air pipe 43, one side of the cold air distributor 42 is arranged with the fan 41, and the other side of the cold air distributor is arranged with the cold air pipe 43.
The cold air distributor 42 includes cold wind stiff end 421 and cold wind link 422, and cold wind stiff end 421 and cold wind link 422 integrated into one piece, and cold wind stiff end 421 is connected with fan 41, and cold wind link 422 is connected with cold-air duct 43, and cold wind stiff end 421, cold wind link 422 and cold-air duct 43 form gas or nitrogen gas circulation passageway.
In this embodiment, the width of the cold air connecting end 422 is greater than that of the cold air fixing end 421, the cold air connecting end 422 and the cold air fixing end 421 are formed in a shape like a Chinese character 'ji', a cold air distribution chamber 4211 is arranged in the cold air connecting end 422, the cold air distribution chamber 4211 is integrally designed in a cylindrical shape, an output end of the fan 1 is installed in the cold air distribution chamber 4211, a cold air chamber 4222 is arranged in the cold air connecting end 422, the cold air chamber 4222 is integrally designed in a circular ring shape, but the thickness of the cold air chamber 4222 is smaller compared with that of the cold air distribution chamber 4211 to form a relatively flat structure, the cold air distribution chamber 4211 is communicated with the cold air chamber 4222, nitrogen is compressed and increased in pressure intensity to improve the air outlet speed of the nitrogen, the cold air connecting end 422 is further provided with a plurality of cold air communicating holes 4221, the plurality of cold air communicating holes 4221 are annularly distributed in the circumferential direction of the cold air connecting end 422, the cold air communication hole 4221 is communicated with the cold air chamber 4222, the cold air pipe 43 is arranged in the cold air communication hole 4221, and the cold air distribution chamber 4211, the cold air chamber 4222, the cold air communication hole 4221 and the cold air pipe 43 form a nitrogen gas circulation channel.
The cold air distributor 42 further includes a cold air mounting plate 423, the cold air mounting plate 423 is used for mounting a cooling mechanism, the cold air fixing end 421, the cold air connecting end 422 and the cold air mounting plate 423 are fixedly connected through a cold air connecting rod 424, and the cold air connecting rod 424 can also be used for enhancing the strength of the cold air distributor 42.
In this embodiment, a plurality of cold air pipes 43 are distributed in the circumferential direction of the cold air pipe 43 in an annular manner with the axis of the cold air distributor 42 as the center, a plurality of cold air pipes 43 form a cold air loading cavity for placing the heating device 3, that is, the heating device 3 is wholly located in the cold air loading cavity, the cold air pipes 43 are distributed outside the thermal insulation chamber 30, the cold air pipes 43 are arranged to be hollow tubular structures, the cold air pipes 43 are communicated to be provided with a plurality of cold air outlet pipes 431, the cold air loading cavity is oriented towards the outlet direction of the cold air outlet pipes 431, one end of the cold air pipes 43 is installed with the cold air communication hole 4221, the other end of the cold air pipes 43 is arranged to be a sealing end, thereby enabling nitrogen to be sprayed out to the furnace cavity 24 through the cold air outlet pipes 431 along the air circulation channel, the spraying amount and the spraying speed of nitrogen are improved, and the uniformity of nitrogen spraying is ensured.
The cooling mechanism comprises a heat exchanger 44, the heat exchanger 44 is arranged on a cold air mounting plate 423, the heat exchanger 44 is provided with a water cooling device, the water cooling device is provided with a water cooling inlet and a water cooling outlet 45, and the water cooling inlet and the water cooling outlet 45 extend to the outside of the furnace body 2 to realize water circulation.
In the implementation process of this embodiment, after the heating device 3 finishes heating, the fan 41 sends nitrogen into the furnace chamber 24 through the hot air circulation mechanism, after the nitrogen absorbs heat in the furnace chamber 24 to raise the temperature, under the action of the fan 41, the nitrogen transfers the heat to the water cooling device in the heat exchanger 44 through the heat exchanger 44, the heated cooling water transfers the heat to the outside of the furnace body 2 through the water cooling outlet 45, that is, the fan 41 carries out directional circulation on the nitrogen sent into the furnace chamber 24 in the furnace chamber 24, and the heat exchanger 44 achieves the purpose of lowering the temperature of the furnace chamber 24 through the heat exchange effect.
The process piping system 5 includes a vacuum release circuit, a nitrogen injection circuit, and a process gas injection circuit, which are respectively used for different processes of the furnace body 2, the vacuum release circuit includes a vacuum release valve 512, the nitrogen injection circuit includes a nitrogen injection valve 533, the process gas injection circuit includes a process gas injection valve 541, and the vacuum release valve 512, the nitrogen injection valve 533, and the process gas injection valve 541 control the processes of the furnace body 2.
The process pipeline system 5 is installed at the side of the furnace body 2, the process pipeline system 5 comprises a process display panel 544, the process display panel 544 is installed at the outer side of the furnace body 2, the process pipeline system 5 further comprises a gas port 52 and a process gas port 54 which are communicated with the furnace body 2, the vacuum release loop and the nitrogen injection loop are communicated with the furnace chamber 24 of the furnace body 2 through the gas port 52, the release of the vacuum state of the furnace body 2 and the nitrogen injection process are realized, and the process gas injection loop is communicated with the furnace chamber 24 of the furnace body 2 through the process gas port 54, so that the purpose of injecting the process gas into the furnace chamber 24 is realized.
The vacuum release circuit includes a vacuum release valve 512 and a vacuum air filter 510, the vacuum release valve 512 and the vacuum air filter 510 are communicated through a first vacuum pipe 511, the vacuum release valve 512 is communicated with the gas port 52 through a second vacuum pipe 513, the vacuum air filter 510, the first vacuum pipe 511, the vacuum release valve 512, the second vacuum pipe 513 and the gas port 52 form a vacuum release gas flow path, the vacuum release valve 512 controls the opening and closing of the vacuum release gas flow path, and when the product is discharged after the heat treatment and cooling treatment, the vacuum release valve 512 is opened, the vacuum gas is transmitted to the furnace chamber 24 of the furnace body 2 along the vacuum release gas flow path, so that the vacuum state in the furnace chamber 24 is released, and the furnace door is opened.
The nitrogen gas injection loop comprises a gas injection port 53 and a nitrogen gas injection valve 533, the gas injection port 53 is communicated with the nitrogen gas injection valve 533 through a first nitrogen gas pipeline 531, the nitrogen gas injection valve 533 is communicated with the gas port 52 through a second nitrogen gas pipeline 534, a nitrogen gas injection vacuum gauge 535 is arranged on the first nitrogen gas pipeline 531, the gas injection port 53, the first nitrogen gas pipeline 531, the nitrogen gas injection valve 533, the second nitrogen gas pipeline 534 and the gas port 52 form a nitrogen gas injection gas circulation path, when the furnace body 2 needs nitrogen gas injection, the nitrogen gas injection valve 533 is opened, the nitrogen gas is introduced into the furnace chamber 24 of the furnace body 2 along the nitrogen gas injection gas circulation path, the purpose of nitrogen gas input is realized, and the input amount of the nitrogen gas is controlled through the nitrogen gas injection vacuum gauge 535.
The process gas injection loop comprises a process gas pipeline 545 and a process gas injection valve 541, one end of the process gas pipeline 545 is communicated with the gas injection port 53, the other end of the process gas pipeline is communicated with the process gas injection valve 541, the outlet end of the process gas injection valve 541 is communicated with the process gas port 54, the gas injection port 53, the process gas pipeline 545, the process gas injection valve 541 and the process gas port 54 form a process gas circulation path, when the furnace body 2 is subjected to process treatment, the process gas injection valve 541 is opened, and the process gas is introduced into the furnace body 2 along the process gas circulation path, so that the purpose of inputting the process gas is realized; as shown in fig. 10, the process gas line 545 is installed at the process display panel 544, and the process gas line 545 is provided with an inlet switch 544, a pressure reducing valve 543, and a vacuum gauge 542 installed at the process display panel 544 to control the input amount and the input speed of the process gas.
The vacuum release valve 512, the nitrogen injection valve 533 and the process gas injection valve 541 adopt high-vacuum pneumatic baffle valves as switching valves of each loop, and the nitrogen is fed into the furnace body 2 or the vacuum in the furnace is released through the opening of the vacuum release valve 512, the nitrogen injection valve 533 and the process gas injection valve 541 so as to open a furnace door; or process gas is fed into the furnace, thereby realizing different process requirements.
In this embodiment, the gas injection port 53 is connected to a nitrogen gas supply device and a process gas supply device, respectively, and delivers nitrogen gas to the nitrogen gas injection circuit or process gas to the process gas injection circuit according to process requirements.
The graphite device 6 comprises a lifting structure 61 and a graphite box 62, the lifting structure 61 comprises a lifting power mechanism 611 and a top cover 613, the graphite box 62 is fixedly provided with an observation hole 64, the product is installed in the graphite box 62, the lifting power mechanism 611 controls the top cover 613 to move so as to be sealed or far away from the observation hole 64, and the observation hole 64 is used for observing the product in the graphite box 62.
The lifting structure 61 comprises a lifting power mechanism 611 and a top cover 613, the lifting power mechanism 611 comprises a lifting rod 612, the top cover 613 is fixedly arranged on the end surface of the lifting rod 612, and the lifting power mechanism 611 controls the movement of the top cover 613 in the vertical direction by driving the lifting rod 612 to lift.
In this embodiment, the observation hole 64 is located in the cover plate above the graphite box 62, the size of the observation hole 64 is smaller than that of the top cover 613, and the top cover 613 can completely seal the observation hole 64, so that a sealed box is formed inside the graphite box 62.
The graphite box body 62 is further provided with an exhaust valve 63, the exhaust valve 63 is preferably arranged on a cover plate above the graphite box body 62, when the vacuum degree in the graphite box body 62 is greater than the vacuum degree of the heat insulation cavity, the exhaust valve 63 is opened, and the gas in the graphite box body 62 is discharged to the cavity.
In this embodiment, the cover plate and the cover door 622 are made of isostatic graphite material.
In this embodiment, the graphite device 6 is installed in the heat insulation cavity of the heating device 3, the lifting power mechanism 611 is installed on the outer surface of the hearth 22 of the furnace body 2, the lifting rod 612 sequentially penetrates through the hearth 22 and the heat insulation chamber 30 and extends into the heat insulation cavity, the lifting rod 612 is slidably connected with the hearth 22 and the heat insulation chamber 30, the lifting power mechanism 611 drives the lifting rod 612 to lift the control top cover 613 and the observation hole 64 to keep a sealed state or a separated state, and the observation hole 64 can be used for observing whether the product is installed in place.
The utility model discloses in the implementation process, nitrogen gas is injected into the return circuit and is poured into nitrogen gas into furnace chamber 24 of furnace body 2 and sweep, and the goods are placed at graphite box body 62, and furnace body 2 carries out evacuation treatment through vacuum system 1, guarantees that the vacuum of furnace chamber 24 keeps 10-3～10-4Pa, the heating device 3 heats the furnace chamber 24, the process gas injection loop injects process gas into the furnace chamber 24 to carry out heat treatment on products, mixed gas mixed with a binder and a forming agent is extracted to a degreasing mechanism of the vacuum system 1 to carry out degreasing treatment, pollution to the furnace chamber 22 is reduced, after the products are subjected to heat treatment, the cooling device 4 is started to effectively control the cooling speed of the products, ensure the consistency of the cooling speed of the products and improve the production efficiency, after the products are cooled to a process set temperature, the vacuum relief loop transmits vacuum air to the furnace chamber 24 to relieve the vacuum state in the furnace chamber 24, the furnace door 21 is opened, the graphite box body 62 loaded with the products is taken out, the door pressing rod 624 is disassembled, and the products are taken out.
It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Claims (10)
1. A heating device for a resistance furnace, characterized in that: including thermal-insulated subassembly and heating element, thermal-insulated subassembly includes the heat screen of a plurality of range upon range of settings, and heating element includes a plurality of heaters, and heating element is located thermal-insulated subassembly, and the temperature of furnace chamber in the heating element control furnace body, thermal-insulated subassembly reflect the heat of heating element radiation, prevent that the heat scatters and disappears.
2. The heating apparatus for electric resistance furnace as claimed in claim 1, wherein: the heat insulation assembly comprises a heat insulation sealing cover, a heat insulation chamber and a heat insulation mounting cover, the heat insulation sealing cover is fixedly mounted at one end of the heat insulation chamber, the heat insulation mounting cover is detachably mounted at the other end of the heat insulation chamber, the heat insulation sealing cover, the heat insulation chamber and the heat insulation mounting cover form a heat insulation cavity, and the heating assembly is mounted in the heat insulation cavity.
3. A heating apparatus for electric resistance furnace as claimed in claim 2, wherein: thermal-insulated sealed lid, thermal-insulated thorax and thermal-insulated installation lid are by the range upon range of setting of a plurality of heat shields respectively, and the heat shield shape that is located thermal-insulated sealed lid, thermal-insulated thorax and thermal-insulated installation lid position matches with thermal-insulated sealed lid, thermal-insulated thorax and thermal-insulated installation lid shape respectively, and a plurality of heat shields of thermal-insulated thorax radially inwards range upon range of in proper order along thermal-insulated thorax.
4. A heating apparatus for electric resistance furnace as claimed in claim 2, wherein: the outer surface of the heat insulation chamber is provided with a plurality of heat insulation ring rods along the axis direction, the radian of the outer surface of each heat insulation ring rod is matched with the arc of the inner surface of the furnace chamber, the heat insulation ring rods enhance the strength of the laminated installation of the heat insulation screen, and one end of the heat insulation chamber is also provided with a heat insulation mounting angle which is used for installing the heat insulation chamber and the heat insulation mounting cover; the heat insulation chamber is fixedly provided with a heat insulation mounting block which is used for mounting the inner surface of the furnace chamber.
5. A heating apparatus for electric resistance furnace as claimed in claim 1, wherein: the heater is fixedly connected with the heat shield through a plurality of connecting and fixing devices, the connecting and fixing devices are distributed along the circumferential direction of the heat insulation chamber, each connecting and fixing device comprises a connecting and fixing rod, the upper end of each connecting and fixing rod upwards sequentially penetrates through the heat shield and extends to the outer side of the heat insulation chamber, the upper end of each connecting and fixing rod is fixed on the outer surface of the heat insulation chamber through a fixing piece, and the lower end of each connecting and fixing rod penetrates through the heater and is fixed on the inner surface of the heater through the fixing piece.
6. A heating apparatus for electric resistance furnace as claimed in claim 5, wherein: the connecting fixing rod is sleeved with a plurality of first positioners and second positioners, the first positioners are located between adjacent heat shields, so that the distance between the adjacent heat shields is the same, the heat shields are convenient to install, and the second positioners are located between the inner heat shields and the heaters, so that the distance between the heaters and the heat shields is the same.
7. A heating apparatus for electric resistance furnace as claimed in claim 1, wherein: the water-cooled electrode is used for supplying power to the heater and is cooled by cooling water.
8. A heating apparatus for electric resistance furnace as claimed in claim 2, wherein: and the heaters are sequentially arranged at intervals along the axial direction of the heat insulation chamber.
9. A heating apparatus for electric resistance furnace as claimed in claim 2, wherein: the heater is located the thermal-insulated cavity, and the heater adopts tubular structure, and the heater adopts high temperature resistance heating element.
10. A heating apparatus for electric resistance furnace as claimed in claim 2, wherein: the heat insulation chamber is of a cylindrical tubular structure, the heat shield is made of high-temperature-resistant materials, and heat radiated by the heater is reflected back to the heat insulation cavity layer by layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122986368.8U CN216745477U (en) | 2021-12-01 | 2021-12-01 | Heating device for resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122986368.8U CN216745477U (en) | 2021-12-01 | 2021-12-01 | Heating device for resistance furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216745477U true CN216745477U (en) | 2022-06-14 |
Family
ID=81932207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122986368.8U Active CN216745477U (en) | 2021-12-01 | 2021-12-01 | Heating device for resistance furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216745477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098421A1 (en) * | 2021-12-01 | 2023-06-08 | 拉普拉斯新能源科技股份有限公司 | Process pipeline system |
| WO2023098397A1 (en) * | 2021-12-01 | 2023-06-08 | 拉普拉斯新能源科技股份有限公司 | High-vacuum resistance furnace |
-
2021
- 2021-12-01 CN CN202122986368.8U patent/CN216745477U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098421A1 (en) * | 2021-12-01 | 2023-06-08 | 拉普拉斯新能源科技股份有限公司 | Process pipeline system |
| WO2023098397A1 (en) * | 2021-12-01 | 2023-06-08 | 拉普拉斯新能源科技股份有限公司 | High-vacuum resistance furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216745477U (en) | Heating device for resistance furnace | |
| CN216745471U (en) | Cooling device for resistance furnace | |
| WO2023098397A1 (en) | High-vacuum resistance furnace | |
| CN216745421U (en) | High vacuum resistance furnace | |
| CN216729560U (en) | Process pipeline system | |
| CN202648375U (en) | High-temperature and high-vacuum electric resistance furnace | |
| CN100470177C (en) | Vacuum sintering furnace | |
| CN216745470U (en) | Cold air distributor | |
| CN209407413U (en) | A kind of insulation heat screen | |
| CN216745472U (en) | Graphite device for loading products | |
| CN201160488Y (en) | Microwave sterilization machine for current medium | |
| WO2023232155A1 (en) | Combustion apparatus and sintering device | |
| CN202576548U (en) | Vacuum arc coating machine with vacuum sandwich layer furnace wall | |
| CN203021631U (en) | Device for rapidly cooling vacuum high temperature furnace | |
| CN114043033B (en) | Vacuum brazing furnace | |
| CN206113635U (en) | Microwave system high temperature water vapor's device | |
| CN202220189U (en) | Continuous type protective atmosphere heating high-pressure gas quenching furnace | |
| CN108588682A (en) | A kind of thermal decomposition film preparation reaction unit | |
| CN214612173U (en) | Annealing device for improving glass strength | |
| CN215002911U (en) | Ceramic roller high-temperature heating furnace | |
| CN203419959U (en) | Vacuum quenching furnace | |
| CN212902589U (en) | Energy-saving tunnel kiln for sintering gangue perforated bricks | |
| CN103105060B (en) | Pushed slab kiln fired synthetically by vanadium nitride microwave and electric hybrid heating | |
| CN216938422U (en) | Hot pressing furnace for magnetic core forming | |
| CN205614053U (en) | Vacuum sintering equipment for heat treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1, Jikang Road, Kengzi street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Laplace New Energy Technology Co.,Ltd. Address before: No.1, Jikang Road, Kengzi street, Pingshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN LAPLACE ENERGY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |