CN114807533B - Multifunctional vacuum high-pressure gas quenching furnace - Google Patents
Multifunctional vacuum high-pressure gas quenching furnace Download PDFInfo
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- CN114807533B CN114807533B CN202210487187.7A CN202210487187A CN114807533B CN 114807533 B CN114807533 B CN 114807533B CN 202210487187 A CN202210487187 A CN 202210487187A CN 114807533 B CN114807533 B CN 114807533B
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- 238000010791 quenching Methods 0.000 title claims abstract description 16
- 230000000171 quenching effect Effects 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 27
- 239000002912 waste gas Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims description 58
- 238000001514 detection method Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 238000011045 prefiltration Methods 0.000 claims description 7
- 238000010892 electric spark Methods 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses a multifunctional vacuum high-pressure gas quenching furnace, which comprises a furnace body, wherein a circular heat exchange mechanism is arranged on the inner wall of the furnace body, a square heat exchange mechanism is arranged in the circular heat exchange mechanism, a convection mechanism is arranged at one end in the furnace body, and a waste gas treatment mechanism is arranged at one end at the top of the furnace body.
Description
Technical Field
The invention relates to the technical field of vacuum furnace equipment, in particular to a multifunctional vacuum high-pressure gas quenching furnace.
Background
Vacuum furnaces, which have been developed in the last decades, are mainly used in the aviation, aerospace, military, marine, automotive and other industries, and the products commonly used for treatment include aircraft engine parts, automotive parts, engineering machinery heat exchangers, moulds and more recently relatively fast-developing electric furnaces, differ from the conventional electric furnaces in their operating conditions in that they operate under vacuum (in a lean atmosphere) and in that they operate under atmospheric pressure (including a controlled or protective atmosphere), i.e. in which they are at different pressures during operation.
The structure of the domestic vacuum high-pressure gas quenching furnace mainly has two kinds, one is a circular heating chamber structure, the other is a square heating chamber structure, the two kinds of structures have defects, the circular heating chamber structure has a heating mode of the vacuum furnace, the radiation effect is poor in a low-temperature state (below 450 ℃), particularly under the condition of large charging quantity, the temperature rising rate is low, the inert gas is refilled in the low-temperature state, the stirring fan is utilized for convection heating, the cooling uniformity can not be ensured for irregular-shaped products such as rod pieces, cakes and the like, the deformation quantity can not be reduced as much as possible only by a tool, a charging mode and the like, isothermal quenching and staged quenching can not be completed, the air port of the square heating chamber structure is enlarged, the transfer distance is longer, the air quantity is large, the flow rate is small, and the heat exchange effect is relatively slow compared with the circular heating chamber.
Disclosure of Invention
The invention aims to provide a multifunctional vacuum high-pressure gas quenching furnace so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the multifunctional vacuum high-pressure gas quenching furnace comprises a furnace body, a circular heat exchange mechanism is arranged on the inner wall of the furnace body, a square heat exchange mechanism is arranged in the circular heat exchange mechanism, the circular heat exchanger and the square heat exchanger are matched with each other, the inner space of the furnace body is fully utilized, the cooling rate is improved through graded heat exchange, a convection mechanism is arranged at one end of the inner part of the furnace body, the heating time of a low-temperature section is reduced through convection heating, the heat dissipation is convenient, an exhaust gas treatment mechanism is arranged at one end of the top of the furnace body, the treatment of exhaust gas is convenient, a temperature detector is arranged at one end of the top of the furnace body close to the exhaust gas treatment mechanism, the internal temperature is convenient to detect, and a support frame is fixedly connected to the bottom of the furnace body in a welding mode, so that the device is convenient to support and fix;
the square heat exchange mechanism comprises an octagonal heating chamber, three groups of nozzles are arranged at the bottom of the octagonal heating chamber, two groups of nozzles are respectively arranged at the sides of the octagonal heating chamber, two groups of nozzles are respectively arranged at the top angle positions of the octagonal heating chamber, one end of the top of each nozzle is fixedly connected with an air inlet pipeline, the advantages of the circular heating chamber and the square heating chamber are combined through selecting the octagonal structure, the defects of the circular heating chamber and the square heating chamber are avoided, the advantages of convection heating, adjustable wind direction, increased cooling speed and reduced equipment use cost can be realized, the nozzles at different positions are opened, different arrangement combinations can be used for processing different products, all the nozzles are opened for mass standard product production, only four groups of nozzles at the sides are closed for rod shaft product production, only the No. 2 nozzle 32 is opened, and the square heat exchange mechanism is suitable for large die casting production.
In a further embodiment, the nozzle is provided with a baffle at one end of the outer side of the octagonal heating chamber in a clamping manner, the baffle is far away from one end of the octagonal heating chamber and is fixedly connected with a cylinder, the outer wall of the octagonal heating chamber is provided with a heat insulation layer, the heat insulation layer is of a graphite felt and CFC structure, the heat insulation layer is convenient for device heat insulation, and a flat plate made of the CFC structure and made of the carbon composite material is good in heat insulation effect, good in compactness, high in strength, resistant to airflow scouring and long in service life.
In further embodiments, the circular heat exchange mechanism comprises a circular heat exchange pipeline, a fixed block is fixedly connected to the outer wall of the circular heat exchange pipeline, a total heat exchange pipeline is fixedly connected to one end of the circular heat exchange pipeline, the total heat exchange pipeline penetrates through one end of the furnace body and is fixedly connected with a circulating pipeline, the circular heat exchange pipeline is arranged along the furnace wall and matched with the square heat exchange mechanism, the aim of graded heat exchange is achieved, the cooling rate is improved by maximum efficiency, and the heat exchange is facilitated.
In a further embodiment, the convection mechanism comprises a fixed cover, the fixed cover is fixedly connected to the outer wall of the furnace body through a bolt, a convection fan is welded at one end of the fixed cover, an output end of one end of the convection fan is fixedly connected with an air outlet, one end of the air outlet, far away from the convection fan, passes through an octagonal heating chamber, and forms convection by using the opened convection fan, so that heat exchange is faster.
In further embodiments, the exhaust treatment mechanism comprises an exhaust pipeline, the exhaust pipeline is far away from the furnace body one end fixedly connected with exhaust treatment case, the exhaust treatment incasement portion is close to exhaust pipeline one end joint and has a prefilter, the exhaust treatment incasement portion is close to prefilter one end and is provided with the ionization district, the exhaust treatment incasement portion is close to ionization district one end and is provided with the collecting zone, the exhaust treatment incasement portion is close to collecting zone one end and is equipped with the postfilter, is convenient for carry out filtration treatment to the inside waste gas of device.
In a further embodiment, two spark detectors are fixedly connected to the inside of the exhaust gas treatment tank, wherein a detection terminal of one spark detector is contacted with a front filter, a detection terminal of the other spark detector is contacted with a rear filter, the spark detectors are connected with a switch of the furnace body through wires, and the spark detectors are used for detecting whether sparks occur in the filters, so that internal ignition of the filter assembly caused by untimely cleaning is prevented, and the switch can be automatically turned off after the filter assembly is judged to be in failure.
In a further embodiment, the temperature detector bottom is provided with an octagonal heating chamber in a penetrating mode, the number of the two supporting frames is two, the two supporting frames are symmetrically welded at two ends of the bottom of the furnace body, detection of internal temperature is facilitated, and the furnace body can be supported and fixed through the supporting frames.
Compared with the prior art, the invention has the beneficial effects that:
the invention combines the advantages of round heating chamber and square heating chamber by using the octagonal heating chamber, avoids the respective disadvantages, realizes the convection heating effect by using the cooperation of the nozzles and the convection mechanism after the equipment is improved, can adjust the wind direction by arranging a plurality of nozzles on the inner wall of the octagonal heating chamber, increases the cooling speed, reduces the using cost of the equipment, and prevents the damage caused by internal ignition after the filter is blocked by arranging the electric spark detector in the waste gas treatment mechanism, can timely close the equipment, prevents the loss, and simultaneously uses the round heat exchange mechanism and the square heat exchange mechanism, thereby facilitating the heat exchange of the device, fully utilizing the internal space of the furnace body and improving the cooling rate.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;
FIG. 2 is a schematic side cross-sectional view of the present invention;
FIG. 3 is a schematic view of a three-dimensional cross-sectional structure of a baffle plate of the present invention;
FIG. 4 is a schematic perspective cross-sectional view of an exhaust treatment mechanism of the present invention;
fig. 5 is a schematic perspective view of the furnace body of the present invention.
In the figure: 1. a furnace body; 2. a round heat exchange mechanism; 21. a circular heat exchange pipeline; 22. a fixed block; 23. a total heat exchange pipeline; 24. a circulation pipe; 3. a square heat exchange mechanism; 31. an octagonal heating chamber; 32. a nozzle; 33. an air intake duct; 34. a baffle; 35. a cylinder; 4. a convection mechanism; 41. a fixed cover; 42. a convection fan; 43. an air outlet; 5. an exhaust gas treatment mechanism; 51. an exhaust gas duct; 52. an exhaust gas treatment tank; 53. a pre-filter; 54. an ionization region; 55. a collection zone; 56. a post filter; 57. an electric spark detector; 6. a temperature detector; 7. and (5) supporting frames.
Detailed Description
The following description will clearly and fully describe the technical solutions of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-3, the embodiment provides a multifunctional vacuum high-pressure gas quenching furnace, which comprises a furnace body 1, wherein a circular heat exchange mechanism 2 is arranged on the inner wall of the furnace body 1, a square heat exchange mechanism 3 is arranged inside the circular heat exchange mechanism 2, the heat exchangers of an air cooling system are two groups, the circular heat exchange mechanism 2 and the square heat exchange mechanism 3 fully utilize the inner space of the furnace body, the maximum efficiency improves the cooling rate through graded heat exchange, one end inside the furnace body 1 is provided with a convection mechanism 4, the heating time of a low-temperature section is reduced through convection heating, one end at the top of the furnace body 1 is provided with an exhaust gas treatment mechanism 5, the exhaust gas in the device is convenient to treat, one end, close to the exhaust gas treatment mechanism 5, of the top of the furnace body 1 is provided with a temperature detector 6, the temperature inside the furnace body 1 is convenient to detect, and a support frame 7 is fixedly connected to the bottom of the furnace body 1 in a welding manner, and the device is convenient to support and fix;
the circular heating chamber structure of the existing equipment has slow heating rate, can not ensure cooling uniformity for irregular-shaped products such as rod pieces, cake pieces and the like, can only reduce deformation as much as possible through a tool, a charging mode and the like, can not finish isothermal quenching and staged quenching, has enlarged air inlet required by the square heating chamber structure, has longer air transmission distance, large air quantity and small flow velocity, and causes slower heat exchange effect.
In order to cope with the defects of the two devices, the octagonal heating chamber 31 is used, the device is convenient to use, the square heat exchange mechanism 3 comprises the octagonal heating chamber 31, three groups of nozzles 32 are arranged at the bottom of the octagonal heating chamber 31, two groups of nozzles 32 are respectively arranged at the side of the octagonal heating chamber 31, two groups of nozzles 32 are respectively arranged at the top angle position of the octagonal heating chamber 31, and one end of the top of each nozzle 32 is fixedly connected with an air inlet pipeline 33.
The circular heat exchange mechanism 2 comprises a circular heat exchange pipeline 21, a fixed block 22 is fixedly connected to the outer wall of the circular heat exchange pipeline 21, a total heat exchange pipeline 23 is fixedly connected to one end of the circular heat exchange pipeline 21, which penetrates through the fixed block 22, a circulating pipeline 24 is fixedly connected to one end of the total heat exchange pipeline 23, which penetrates through the furnace body 1, so that heat exchange is facilitated.
Through using square heat transfer mechanism 3 to just the wind gap, for the primary heat transfer, circular heat transfer mechanism 2 arranges along the oven, after primary heat transfer and water conservancy diversion, get into the second grade heat transfer, for the convenience adjust wind direction, linkage divide into three groups, four groups of nozzles 32 in top are No. 1, four groups of sides are No. 2, three groups of bottom are No. 3, during the cooling, can realize following three kinds of permutation and combination cooling, open No. 1 nozzle 32, no. 2 nozzle 32 and No. 3 nozzle 32, be applicable to the production of batch standard product, through opening No. 1 nozzle 32 and No. 3 nozzle 32, can be applicable to the production of axle class product, through opening No. 2 nozzle 32, be applicable to large-scale die casting production.
Example two
Referring to fig. 1-3, a further improvement was made over example 1:
the nozzle 32 is at the outside one end joint of octagonal heating chamber 31 has baffle 34, and baffle 34 keeps away from octagonal heating chamber 31 one end fixedly connected with cylinder 35, and octagonal heating chamber 31 outer wall is provided with the insulating layer, and the insulating layer selects graphite felt and CFC structure for use, and octagonal heating chamber 31 insulating layer selects graphite felt and CFC structure, and CFC refers to the dull and stereotyped that is made with carbon composite material, for traditional graphite felt, compactness is good, intensity is high, and resistant air current erodees, long service life, under the circumstances of definite heat preservation effect, can prolong the life of heating chamber.
In this embodiment, in order to form convection, be convenient for device heating and heat dissipation, convection mechanism 4 includes fixed lid 41, fixed lid 41 passes through bolt fixed connection on furnace body 1 outer wall, fixed lid 41 one end welding has convection fan 42, convection fan 42 one end output fixed connection gas outlet 43, gas outlet 43 keeps away from convection fan 42 one end and passes there is octagonal heating chamber 31, open convection fan 42, blow out air and enter into octagonal heating chamber 31, reach the purpose of convection, simultaneously drive baffle 34 through opening cylinder 35 and remove, be convenient for switch nozzle 32, nozzle 32 closes baffle 34 through cylinder 35 structure when inflating, can open baffle 34 during the cooling.
Example III
Referring to fig. 1, 2 and 4, further improvements are made on the basis of embodiment 1:
for filtering waste gas, use waste gas treatment mechanism 5, waste gas treatment mechanism 5 includes waste gas pipeline 51, waste gas pipeline 51 keeps away from furnace body 1 one end fixedly connected with waste gas treatment case 52, waste gas treatment case 52 inside is close to waste gas pipeline 51 one end joint has prefilter 53, waste gas treatment case 52 inside is close to prefilter 53 one end and is provided with ionization region 54, waste gas treatment case 52 inside is close to ionization region 54 one end and is provided with collecting region 55, waste gas treatment case 52 inside is close to collecting region 55 one end and is provided with post filter 56, waste gas treatment mechanism 5 adopts high-efficient ionization and collecting technique, fully collect the pollutant in the gas and carry out purification treatment, the clean air who will handle directly discharges indoor simultaneously, thereby not only having reached clean environment's purpose, refrigeration or heating's energy loss in the operational environment has been reduced again.
In this embodiment, two spark detectors 57 are fixedly connected to the inside of the exhaust gas treatment tank 52, one of the spark detectors 57 has a detection terminal in contact with the pre-filter 53, the other spark detector 57 has a detection terminal in contact with the post-filter 56, the spark detector 57 is connected to a switch of the furnace body 1 through a wire, the air filter utilizes the electrostatic principle to charge particles in the air flow, and then captures the particles on the collection device by means of coulomb force, the spark detector 57 is internally provided with an intelligent high-voltage power supply module, the intelligent control circuit can monitor and treat the operation faults of the device in real time, when the filter assembly is not cleaned timely and causes internal ignition, the spark detector 57 automatically cuts off the high-voltage output after judging the internal ignition as a fault, and generally, the ignition times (10, 20, 30, 40) per minute can be set according to the working state as the limit of judging the fault, thereby effectively prolonging the maintenance interval of the product and avoiding the danger caused by the high-voltage ignition.
Example IV
Referring to fig. 1 and 5, a further improvement is made on the basis of embodiment 1:
in order to facilitate the detection of the internal temperature of the device, the temperature detector 6 passes through the octagonal heating chamber 31 and is fixedly connected to the outer wall of the furnace body 1, the number of the supporting frames 7 is two, the two supporting frames 7 are symmetrically welded at two ends of the bottom of the furnace body 1, and the supporting frames 7 are used for facilitating the installation and fixation of the furnace body 1.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a multi-functional vacuum high pressure gas quenching stove, includes furnace body (1), its characterized in that: the device is characterized in that a round heat exchange mechanism (2) is arranged on the inner wall of the furnace body (1), a square heat exchange mechanism (3) is arranged inside the round heat exchange mechanism (2), a convection mechanism (4) is arranged at one end inside the furnace body (1), an exhaust gas treatment mechanism (5) is arranged at one end of the top of the furnace body (1), a temperature detector (6) is arranged at one end, close to the exhaust gas treatment mechanism (5), of the top of the furnace body (1), and a supporting frame (7) is fixedly connected with the bottom of the furnace body (1) in a welding mode;
the square heat exchange mechanism (3) comprises an octagonal heating chamber (31), three groups of nozzles (32) are arranged at the bottom of the octagonal heating chamber (31), two groups of nozzles (32) are respectively arranged at the side of the octagonal heating chamber (31), two groups of nozzles (32) are respectively arranged at the vertex angle position of the octagonal heating chamber (31), and one end of the top of each nozzle (32) is fixedly connected with an air inlet pipeline (33);
the convection mechanism (4) comprises a fixed cover (41), the fixed cover (41) is fixedly connected to the outer wall of the furnace body (1) through a bolt, one end of the fixed cover (41) is welded with a convection fan (42), one end output end of the convection fan (42) is fixedly connected with an air outlet (43), and one end, far away from the convection fan (42), of the air outlet (43) penetrates through the octagonal heating chamber (31);
the waste gas treatment mechanism (5) comprises a waste gas pipeline (51), one end, away from the furnace body (1), of the waste gas pipeline (51) is fixedly connected with a waste gas treatment box (52), a front filter (53) is clamped at one end, close to the waste gas pipeline (51), of the waste gas treatment box (52), an ionization region (54) is arranged at one end, close to the front filter (53), of the waste gas treatment box (52), a collection region (55) is arranged at one end, close to the ionization region (54), of the waste gas treatment box (52), and a rear filter (56) is arranged at one end, close to the collection region (55), of the waste gas treatment box (52);
two electric spark detectors (57) are fixedly connected inside the waste gas treatment box (52), wherein a detection terminal of one electric spark detector (57) is contacted with a pre-filter (53), a detection terminal of the other electric spark detector (57) is contacted with a post-filter (56), and the electric spark detector (57) is connected with a switch of the furnace body (1) through a wire.
2. The multi-functional vacuum high-pressure gas quenching furnace according to claim 1, wherein: the nozzle (32) is provided with a baffle plate (34) in a clamping mode at one end of the outer side of the octagonal heating chamber (31), one end, away from the octagonal heating chamber (31), of the baffle plate (34) is fixedly connected with an air cylinder (35), a heat insulation layer is arranged on the outer wall of the octagonal heating chamber (31), and graphite felt and CFC structures are selected as the heat insulation layer.
3. The multi-functional vacuum high-pressure gas quenching furnace according to claim 1, wherein: the circular heat exchange mechanism (2) comprises a circular heat exchange pipeline (21), a fixed block (22) is fixedly connected to the outer wall of the circular heat exchange pipeline (21), a total heat exchange pipeline (23) is fixedly connected to one end of the circular heat exchange pipeline (21) penetrating through the fixed block (22), and a circulating pipeline (24) is fixedly connected to one end of the total heat exchange pipeline (23) penetrating through the furnace body (1).
4. The multi-functional vacuum high-pressure gas quenching furnace according to claim 1, wherein: the bottom of the temperature detector (6) is provided with an octagonal heating chamber (31) in a penetrating way, the number of the two supporting frames (7) is two, and the two supporting frames (7) are symmetrically welded at two ends of the bottom of the furnace body (1).
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| CN202210487187.7A CN114807533B (en) | 2022-05-06 | 2022-05-06 | Multifunctional vacuum high-pressure gas quenching furnace |
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| CN114807533B true CN114807533B (en) | 2023-11-17 |
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| CN114807533A (en) | 2022-07-29 |
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