CN115491480B - Hydrogen storage bottle type container heat treatment system - Google Patents

Hydrogen storage bottle type container heat treatment system Download PDF

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Publication number
CN115491480B
CN115491480B CN202211124477.1A CN202211124477A CN115491480B CN 115491480 B CN115491480 B CN 115491480B CN 202211124477 A CN202211124477 A CN 202211124477A CN 115491480 B CN115491480 B CN 115491480B
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hydrogen storage
storage bottle
heat treatment
pickling
quenching
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CN115491480A (en
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章杰锋
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Zhejiang Lanneng Hydrogen Technology Co ltd
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Zhejiang Lanneng Hydrogen Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/32Hydrogen storage

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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)
  • Cleaning In General (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

The invention discloses a hydrogen storage bottle type container heat treatment system which comprises a rust removing device, an acid washing device, a primary normalizing device, a secondary normalizing device, a quenching device, a water washing device and an exhaust gas treatment device. The hydrogen storage bottle is subjected to heat treatment after being subjected to bottle rust removal, acid washing, first normalizing, second normalizing, quenching and water washing, the adopted heat treatment process is energy-saving and environment-friendly, the metal workpiece obtained by heat treatment has high hardness and high strength, the service life of a metal product can be prolonged, the hydrogen storage bottle uses the waste gas treatment device to treat waste gas in the whole heat treatment process, the waste gas is discharged after environment-friendly treatment, the adverse effect of toxic gas in field smoke on the health of workers can be reduced, the acid washing using program of the acid washing device is optimized, the complicated program that workers directly contact the hydrogen storage bottle when the hydrogen storage bottle is put into and taken out of the acid washing vertical cylinder is omitted, and the potential safety hazard that the workers directly contact the acid washing liquid is reduced.

Description

Hydrogen storage bottle type container heat treatment system
Technical Field
The invention relates to the technical field of heat treatment, in particular to a heat treatment system for a hydrogen storage bottle type container.
Background
Heat treatment refers to a metal heat treatment process in which a material is heated, kept warm, and cooled in a solid state to obtain a desired structure and performance, and is one of important processes in machine manufacturing, and the heat treatment generally does not change the shape and overall chemical composition of a workpiece as compared with other processes, but rather imparts or improves the service performance of the workpiece by changing the microstructure inside the workpiece or changing the chemical composition of the surface of the workpiece, which is characterized by improving the internal quality of the workpiece, but which is generally not visible to the naked eye. In order to make the metal workpiece possess required mechanical property, physical property and chemical property, except for reasonable selection of material and various forming processes, heat treatment process is often indispensable, steel is the most widely used material in mechanical industry, steel microstructure is complex, and can be controlled by heat treatment, so that heat treatment of steel is the main content of heat treatment of metal, in addition, aluminium, copper, magnesium, titanium and other alloys can also change their mechanical, physical and chemical properties by heat treatment so as to obtain different service properties, and the heat treatment process generally comprises three processes of heating, heat preservation and cooling, sometimes only two processes of heating and cooling, and these processes are mutually connected, and can not be interrupted.
The hydrogen storage bottle is a container for storing hydrogen, and the hydrogen storage bottle type container can be subjected to a heat treatment process in the production process so as to achieve the purpose of improving the strength and the hardness of the bottle body; the existing heat treatment process is simpler in procedure, although the metal heat treatment can be completed quickly, the effect on the metal hydrogen storage bottle type container products is general in heat treatment, so that the hydrogen storage bottle type container cannot achieve ideal high hardness and high strength, the effect on prolonging the service life of metal products is also more general, toxic gas is contained in waste gas generated in the whole heat treatment process, the high-temperature waste gas is directly discharged, the environment friendliness of the hydrogen storage bottle type container heat treatment process is poor, the toxic gas has a certain influence on the health of on-site staff, in addition, in order to ensure that the inside of the hydrogen storage bottle is fully pickled in the pickling process, pickling liquid needs to be filled into the hydrogen storage bottle, operators are required to press and lift the hydrogen storage bottle in the pickling process because of the problems of initial floatation and sinking after filling of the bottle, and the pickling liquid has certain corrosiveness, and potential safety hazards of contact with the pickling liquid exist for the operators in the operation process.
Disclosure of Invention
The invention mainly aims to provide a heat treatment system for a hydrogen storage bottle type container, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a hydrogen storage bottle container heat treatment system, the system comprising: derusting device, pickling device, primary normalizing device, secondary normalizing device, guenching unit, washing device and exhaust gas treatment device, pickling device is including pickling upright section of thick bamboo, shift out slide and pickling support, the inner wall fixed mounting of pickling upright section of thick bamboo has shift out the slide, the inside of pickling upright section of thick bamboo is provided with the pickling support.
The pickling support comprises a supporting support plate, positioning support posts, lifting pull rods, a moving-out pull ring and a clamping assembly, wherein the lifting pull rods are fixedly installed on the upper surface of the supporting support plate, the moving-out pull rings are fixedly installed at the upper ends of the lifting pull rods, the positioning support posts are fixedly installed at the circle centers of the upper surface of the supporting support plate, the clamping assemblies are arranged on the two sides of the positioning support posts on the upper surface of the supporting support plate, the clamping assembly comprises a guide sliding box, a guide sliding block, a clamping support arm, an anti-slip pad, a rotating bearing, a positioning screw rod, a locking hand wheel and a positioning screw sleeve, the guide sliding block is movably installed inside the guide sliding box, the positioning screw rod is penetrated through the surface of the guide sliding block, the rotating bearing is fixedly installed on the inner wall of the guide sliding box, the locking hand wheel is fixedly installed at one end of the guide sliding box, the clamping support arm is fixedly installed on the surface of the clamping support arm, the positioning screw rod is rotationally connected with the rotating bearing, the lower surface of the guide sliding box is fixedly connected with the upper surface of the supporting support plate, the positioning screw rod is fixedly connected with the guide sliding groove, and the positioning screw rod is fixedly connected with the guide sliding groove.
A hydrogen storage bottle type container heat treatment system comprises the following steps:
s1, derusting the bottle body, namely immersing the hydrogen storage bottle body in the anti-rust liquid for anti-rust treatment for 5-8min, namely finishing the derusting treatment of the metal workpiece, pouring sufficient derusting liquid from the bottle mouth of the hydrogen storage bottle when the hydrogen storage bottle body is immersed in the anti-rust liquid, derusting the inner wall part of the hydrogen storage bottle, and standing the bottle mouth part downwards for 10-15min after the hydrogen storage bottle is taken out of the derusting liquid, so as to finish pouring the residual derusting liquid in the hydrogen storage bottle;
s2, pickling the bottle body, after the step S1 is finished, adding the prepared pickling solution into a cleaning container, completely immersing the hydrogen storage bottle into the pickling solution and pickling for 10-20min, then repeatedly flushing the hydrogen storage bottle in clear water for 3-5 times, and then drying the hydrogen storage bottle body in a baking oven at 60-80 ℃ for 10-30min, wherein rust removal, pickling and water washing after heat treatment are carried out on the hydrogen storage bottle body before heat treatment, so that no burrs are formed on the surface of the hydrogen storage bottle, and the attractiveness of the hydrogen storage bottle product and the anti-scratch effect during use are improved;
s3, normalizing for the first time, after the step S2 is completed, placing the hydrogen storage bottle to be heat-treated into a heat treatment furnace, heating the heat treatment furnace to 600-650 ℃, then preserving heat for 5-8 hours, after the heat preservation time is completed, continuously heating the hydrogen storage bottle to 900+/-30 ℃ at a heating rate of 100-120 ℃/h from the heat treatment furnace, preserving heat for 6-12 hours, and finally hanging down a trolley for water cooling to 400-450 ℃;
s4, carrying out secondary normalizing, after the step S3 is completed, loading the hydrogen storage bottle subjected to primary normalizing into a heat treatment furnace at 360+/-10 ℃ for carrying out secondary heat treatment, preserving heat for 8-12h, then heating to 800+/-20 ℃ at the heating rate of 100-120 ℃/h, preserving heat for 38-50h, cooling to be lower than 150 ℃, and finally lifting the hydrogen storage bottle out of the heat treatment furnace, thereby completing the heat treatment work after forging the hydrogen storage bottle;
s5, quenching, namely conveying the hydrogen storage bottle in the step S4 into a quenching chamber for quenching, putting the hydrogen storage bottle into quenching oil, slowly cooling to 100-120 ℃ for 30-40min, and taking the hydrogen storage bottle out of the quenching chamber and then into a tempering furnace for tempering treatment;
s6, washing, namely placing the quenched hydrogen storage bottle into a cleaning solution to clean stains generated during heat treatment after the step S4 is completed, firstly standing the bottle mouth part of the hydrogen storage bottle downwards for 5-10min after the cleaning of the hydrogen storage bottle body is completed, and then placing the hydrogen storage bottle into an oven at 80-100 ℃ for drying for 10-20min;
s7, waste gas treatment, namely treating the waste gas by using a waste gas treatment device in the steps S3-S5, collecting the waste gas generated after tempering and quenching through a collecting cover, sending the collected waste gas into a spray tower for pre-dedusting and pre-cooling, then enabling the waste gas to enter a condensation exchanger for cooling and discharging, and discharging the waste gas after environmental protection treatment, so that adverse effects of toxic gas in on-site flue gas on the health of workers can be reduced.
Preferably, the rust-preventive solution in the step S1 is composed of 20% sodium benzoate, 30% anhydrous carbonic acid, 20% polyacrylic acid, 20% caustic soda flakes, and 10% sodium molybdate.
Preferably, in the step S1, the rust removing treatment time is controlled to be 7min, and the standing time of the hydrogen storage bottle taken out of the rust removing liquid is controlled to be 10min.
Preferably, the pickling time in the step S2 is controlled to be 10min, and then the pickling time is put into clear water to be repeatedly washed for 3 times, and then the pickling time is put into an oven at 80 ℃ to be dried for 10min.
Preferentially, the heat treatment furnace in the step S3 is heated to 600 ℃, then is kept warm for 5 hours, after the heat preservation time is finished, the heat treatment furnace is continuously controlled to be heated, the temperature is heated to 930 ℃ at the heating rate of 100 ℃/hour, the heat preservation time is 6 hours, finally, the trolley is hung down to be cooled to 400 ℃, the hydrogen storage bottle in the step S4 is loaded into the heat treatment furnace for carrying out the second heat treatment at the temperature of 370 ℃, the heat preservation time is 10 hours, then the temperature is heated to 820 ℃ at the heating rate of 120 ℃/hour, the temperature is kept for 40 hours, the temperature is cooled to be lower than 150 ℃, and finally, the hydrogen storage bottle is hung out of the heat treatment furnace, and the heat treatment work after forging of the hydrogen storage bottle is completed.
Preferably, the hydrogen storage bottle in the step S5 is placed into quenching oil to be slowly cooled to 100 ℃, the cooling time is 30min, the standing time of the hydrogen storage bottle in the step S6 is controlled to be 10min, and then the hydrogen storage bottle is placed into a drying oven at 100 ℃ to be dried for 10min.
Compared with the prior art, the invention has the following beneficial effects: the hydrogen storage bottle completes heat treatment after derusting, pickling the bottle, normalizing for the first time, normalizing for the second time, quenching and washing, the heat treatment process adopted is energy-saving and environment-friendly, the metal workpiece obtained by heat treatment has high hardness and high strength, the service life of a metal product can be prolonged, the hydrogen storage bottle uses an exhaust gas treatment device to treat exhaust gas in the whole heat treatment process, the exhaust gas is discharged after environment-friendly treatment, the adverse effect of toxic gas in on-site flue gas on the health of staff can be reduced, the derusting, pickling and washing after heat treatment can be carried out on the hydrogen storage bottle, the surface of the hydrogen storage bottle can be ensured to have no burrs, and the attractiveness of the hydrogen storage bottle product and the anti-scratch effect during use can be improved; the pickling using procedure of the pickling device is optimized, if the pickling bracket is utilized to fix the hydrogen storage bottle, the pickling liquid can be conveniently erected on the hydrogen storage bottle, the pickling liquid can be poured in the process of taking out the hydrogen storage bottle, and the complicated procedure that the staff directly contacts the hydrogen storage bottle is omitted when the hydrogen storage bottle is put in and taken out of the pickling vertical cylinder, so that the potential safety hazard that the staff directly contacts the pickling liquid is reduced.
Drawings
FIG. 1 is a schematic illustration of a process flow of the present invention;
FIG. 2 is a schematic illustration of the use of the apparatus of the present invention;
FIG. 3 is a schematic diagram of the structure of the pickling device of the invention;
FIG. 4 is a cross-sectional view of an acid wash bowl according to the invention;
FIG. 5 is a schematic diagram of the structure of the pickling bracket of the invention;
fig. 6 is a schematic structural view of a clamping assembly according to the present invention.
In the figure: 1. a rust removing device; 2. a pickling device; 3. a primary normalizing device; 4. a secondary normalizing device; 5. a quenching device; 6. a water washing device; 7. an exhaust gas treatment device; 8. acid washing vertical barrels; 9. removing the slideway; 10. acid washing a bracket; 11. a supporting pallet; 12. positioning the support column; 13. lifting the pull rod; 14. removing the pull ring; 15. a clamping assembly; 16. a guide slide box; 17. a guide slide block; 18. clamping the support arm; 19. an anti-slip pad; 20. a rotating bearing; 21. a positioning screw rod; 22. locking a hand wheel; 23. a positioning screw sleeve; 24. a filtrate tank.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
A hydrogen storage bottle container heat treatment system, the system comprising: the rust removing device 1, the pickling device 2, the primary normalizing device 3, the secondary normalizing device 4, the quenching device 5, the water washing device 6 and the waste gas treatment device 7, wherein the rust removing device 1 is of a pool structure, a rust removing liquid is filled in the pool, a hydrogen storage bottle body can be immersed in the rust removing liquid for rust removing treatment for 5-8min, namely, the rust removing treatment on a metal workpiece is completed, when the hydrogen storage bottle body is immersed in the rust removing liquid, sufficient rust removing liquid is filled in the bottle mouth of the hydrogen storage bottle, the rust removing treatment is carried out on the inner wall part of the hydrogen storage bottle, after the hydrogen storage bottle is taken out from the rust removing liquid, the bottle mouth part is downward placed for 10-15min, the rust removing liquid remained in the hydrogen storage bottle is poured, the pickling device 2 is of a standing pickling cylinder structure, when pickling, the prepared pickling liquid is firstly added in a cleaning container, the hydrogen storage bottle is completely immersed in the pickling liquid, and the pickling is carried out, the pickling time is 10-20min, then the pickling is put into clear water to repeatedly wash for 3-5 times, then the pickling is put into a baking oven with the temperature of 60-80 ℃ to dry for 10-30min, a primary normalizing device 3 is of a heat treatment furnace structure, during primary heat treatment, a hydrogen storage bottle to be heat treated is put into the heat treatment furnace, the heat treatment furnace is heated to 600-650 ℃, then the heat preservation time is kept for 5-8 h, after the heat preservation time is finished, the heating is continuously controlled from the heat treatment furnace, the heating rate is heated to 900+/-30 ℃ at 100-120 ℃/h, the heat preservation time is kept for 6-12h, finally, a trolley is hung down to be water-cooled to 400-450 ℃, the secondary normalizing device 4 is of the heat treatment furnace structure, during secondary heat treatment, the hydrogen storage bottle after the primary normalizing is put into the heat treatment furnace for secondary heat treatment at the temperature of 360+/-10 ℃, the heating rate is kept for 8-12h, and then the heating rate is heated to 800+/-20 ℃ at the heating rate of 100-120 ℃/h, after the heat preservation is carried out for 38-50 hours, cooling to be lower than 150 ℃, finally hanging the hydrogen storage bottle out of a heat treatment furnace, completing the heat treatment work after forging of the hydrogen storage bottle, wherein the quenching device 5 is of a quenching chamber structure, during quenching, sending the hydrogen storage bottle into the quenching chamber for quenching, then slowly cooling the hydrogen storage bottle to 100-120 ℃ in quenching oil for 30-40 minutes, finally, after the hydrogen storage bottle is removed from the quenching chamber, entering the tempering furnace for tempering treatment, the water washing device 6 is of a water tank structure, adding cleaning liquid into the water tank, during cleaning, placing the quenched hydrogen storage bottle into the cleaning liquid for cleaning stains generated during heat treatment, after the cleaning of the hydrogen storage bottle body is completed, firstly placing the bottle mouth part of the hydrogen storage bottle downwards for 5-10 minutes, then placing the hydrogen storage bottle into an oven at 80-100 ℃ for drying for 10-20 minutes, and the waste gas treatment device 7 is of a spray tower structure, during the first normalizing, the second normalizing and quenching treatment stage, utilizing the waste gas treatment device to treat the waste gas, and can collect the waste gas generated after the quenching treatment by a collecting cover, then sending the waste gas into a pre-cooling tower for pre-cooling, and finally cooling the waste gas after the waste gas is discharged into a cooling tower for cooling device for cooling.
The pickling device 2 comprises a pickling vertical cylinder 8, a shifting-out slideway 9 and a pickling bracket 10, wherein the shifting-out slideway 9 is fixedly arranged on the inner wall of the pickling vertical cylinder 8, the pickling bracket 10 is arranged in the pickling vertical cylinder 8, the pickling bracket 10 comprises a supporting plate 11, a positioning support post 12, a lifting pull rod 13, a shifting-out pull ring 14 and a clamping assembly 15, the lifting pull rod 13 is fixedly arranged on the upper surface of the supporting plate 11, the shifting-out pull ring 14 is fixedly arranged at the upper end of the lifting pull rod 13, the positioning support post 12 is fixedly arranged at the center of the upper surface of the supporting plate 11, the clamping assemblies 15 are arranged on two sides of the positioning support post 12, the clamping assembly 15 comprises a guide slide box 16, a guide slide block 17, a clamping support arm 18, a non-slip pad 19, a rotating bearing 20, a positioning screw 21, a locking hand wheel 22 and a positioning screw sleeve 23, the inside movable mounting of direction slip box 16 has direction slider 17, the surface of direction slider 17 wears to be equipped with the position adjustment swivel nut 23, the position adjustment lead screw 21 wears to be equipped with in the inside of position adjustment swivel nut 23, the inner wall fixed mounting of direction slip box 16 has rolling bearing 20, the outside of direction slip box 16 is located the one end fixed mounting of position adjustment lead screw 21 has locking hand wheel 22, the up end fixed mounting of direction slider 17 has centre gripping support arm 18, the fixed surface mounting of centre gripping support arm 18 has slipmat 19, position adjustment lead screw 21 and rolling bearing 20 rotate to be connected, the lower surface of direction slip box 16 and the upper surface fixed connection of support layer board 11, the liquid filtering groove 24 has been seted up to the upper surface of support layer board 11, position adjustment swivel nut 23 and direction slider 17 fixed connection, position adjustment lead screw 21 and position adjustment swivel nut 23 threaded connection.
Wherein the hydrogen storage bottle product is made of metal steel, the volume is within 55-200L, the outer diameter of the gas bottle is 350-450mm, the weight of the gas bottle is controlled to be 10-50kg, and the hydrogen storage volume is 15-50m 3 In the range, when the bottle body is washed by acid, the prepared pickling solution is added into the cleaning container, the hydrogen storage bottle is completely immersed into the pickling solution and is subjected to pickling, in the process of placing the hydrogen storage bottle into the pickling barrel, the pickling bracket 10 is firstly taken out of the pickling barrel 8, then the hydrogen storage bottle is inverted, the bottle mouth of the hydrogen storage bottle is inverted and sleeved on the positioning support column 12, the lower end of the bottle mouth of the hydrogen storage bottle is supported on the upper surface of the supporting support plate 11, the locking hand wheel 22 is rotated to drive the positioning screw rod 21 to rotate at the position of the rotating bearing 20, the positioning screw sleeve 23 in threaded connection with the positioning screw rod 21 drives the clamping support arm 18 to move towards the hydrogen storage bottle until the clamping support arm 18 tightly clamps and fixes the hydrogen storage bottle by the anti-skid pad 19, finally the hydrogen storage bottle is placed into the pickling barrel 8 through the pickling bracket 10, the pickling bracket 10 is used for fixing the hydrogen storage bottle, the pickling solution can be conveniently erected on the hydrogen storage bottle, the pickling solution can be poured into the pickling barrel in the process of the hydrogen storage bottle, and the staff is not in direct contact with the pickling solution when the hydrogen storage bottle is placed into and taken out of the pickling barrel 8, and the staff is directly used for reducing the hidden danger of direct contact of staff; in the first normalizing, the hydrogen storage bottle to be heat treated is put into a heat treatment furnace for heat treatmentThe temperature is raised by arranging the furnace, then preserving heat, after the heat preservation time is finished, continuing to raise the temperature from the control heat treatment furnace, and finally hanging the trolley down to cool to a certain temperature; when the bottle body is derusted, the bottle body of the hydrogen storage bottle is immersed in the rust-proof liquid for rust prevention, when the bottle body of the hydrogen storage bottle is immersed in the rust-proof liquid, the inner wall part of the hydrogen storage bottle is derusted, after the hydrogen storage bottle is taken out of the rust-proof liquid, the bottle mouth part is downward placed and the residual rust-proof liquid in the hydrogen storage bottle is poured, the bottle body of the hydrogen storage bottle is derusted before heat treatment, acid washing and water washing after heat treatment, the surface of the hydrogen storage bottle can be ensured to have no burrs, and the attractiveness of the hydrogen storage bottle product and the anti-scratch effect during use are facilitated to be improved; during quenching, the hydrogen storage bottle is sent into a quenching chamber for quenching, and is slowly cooled by quenching oil; during secondary normalizing, loading the hydrogen storage bottle after secondary normalizing into a heat treatment furnace for secondary heat treatment, then preserving heat, then heating, preserving heat for a period of time until the hydrogen storage bottle is cooled to be lower than 150 ℃, and finally lifting the hydrogen storage bottle out of the heat treatment furnace and completing post-forging heat treatment; during the water washing treatment, placing the hydrogen storage bottle into a cleaning solution to clean stains generated during the heat treatment, and drying after the cleaning of the hydrogen storage bottle body is completed; the hydrogen storage bottle utilizes exhaust gas treatment device to carry out the treatment with waste gas in the heat treatment process, send into the spray column after collecting through collecting the cover and carry out dust removal in advance and pre-cooling and then make waste gas get into the cooling of condensation exchanger and discharge after cooling down, waste gas discharges after environmental protection treatment, can reduce the toxic gas in the scene flue gas and cause adverse effect to staff's health, the hydrogen storage bottle accomplishes the heat treatment work after passing through bottle rust cleaning, pickling bottle, first normalizing, second normalizing, quenching and washing, the heat treatment process that adopts is energy-concerving and environment-protective, the metal work piece that the heat treatment obtained has high hardness, high strength, can prolong the life of metal product.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (10)

1. A hydrogen storage bottle container heat treatment system, comprising: the rust removing device (1), the pickling device (2), the primary normalizing device (3), the secondary normalizing device (4), the quenching device (5), the water washing device (6) and the waste gas treatment device (7), the rust removing device (1), the pickling device (2), the primary normalizing device (3), the secondary normalizing device (4), the quenching device (5) and the water washing device (6) are sequentially arranged one by one and respectively finish bottle rust removing, pickling bottle body, primary normalizing, secondary normalizing, quenching and water washing treatment on a hydrogen storage bottle body, the waste gas treatment device (7) performs waste gas treatment on waste gas generated by the primary normalizing device (3), the secondary normalizing device (4) and the quenching device (5), the rust removing device (1) is of a pool structure, rust removing liquid is contained in the pool, the hydrogen storage bottle body is immersed in the rust preventing liquid for performing rust preventing treatment, the pickling device (2) is of a vertical pickling cylinder structure, during pickling, the prepared pickling liquid is added in the cleaning container, hydrogen storage is completely immersed in the pickling cylinder and completely moves out of the pickling cylinder, the pickling cylinder (8) is provided with a vertical pickling cylinder (8), the vertical pickling cylinder (8) is provided with a sliding way (8) and a vertical sliding way (8) is arranged on the inner wall (8), the primary normalizing device (3) is of a heat treatment furnace structure, the hydrogen storage bottle is placed in the heat treatment furnace, the heat treatment furnace is heated and subjected to primary heat treatment, the secondary normalizing device (4) is of a heat treatment furnace structure, the hydrogen storage bottle is placed in the heat treatment furnace, the heat treatment furnace is heated and subjected to secondary heat treatment, the quenching device (5) is of a quenching chamber structure, the hydrogen storage bottle is sent into the quenching chamber for quenching treatment during quenching, the water washing device (6) is of a water tank structure, cleaning liquid is added into the water tank, the hydrogen storage bottle is placed in the water washing tank for decontamination treatment, the waste gas treatment device (7) is of a spray tower structure, and waste gas is treated by the waste gas treatment device during the primary normalizing, the secondary normalizing and the quenching treatment stage.
2. The heat treatment system for hydrogen storage bottle type container according to claim 1, wherein the time for immersing the hydrogen storage bottle body in the rust-proof liquid is 5-8min, the rust removal treatment of the metal workpiece can be completed, when the hydrogen storage bottle body is immersed in the rust-proof liquid, sufficient rust removal liquid is poured from the bottle mouth of the hydrogen storage bottle, the rust removal treatment is carried out on the inner wall part of the hydrogen storage bottle, and after the hydrogen storage bottle is taken out from the rust removal liquid, the bottle mouth part is kept stand downwards for 10-15min, and the pouring of the residual rust removal liquid in the hydrogen storage bottle is completed.
3. The hydrogen storage bottle type container heat treatment system according to claim 1, wherein the pickling bracket (10) comprises a supporting support plate (11), a positioning support column (12), a lifting pull rod (13), a moving-out pull ring (14) and a clamping assembly (15), wherein the lifting pull rod (13) is fixedly arranged on the upper surface of the supporting support plate (11), the moving-out pull ring (14) is fixedly arranged at the upper end of the lifting pull rod (13), the positioning support column (12) is fixedly arranged at the center of the upper surface of the supporting support plate (11), the clamping assemblies (15) are arranged on the upper surface of the supporting support plate (11) on two sides of the positioning support column (12), the clamping assembly (15) comprises a guide sliding box (16), a guide sliding block (17), a clamping support arm (18), an anti-sliding pad (19), a rotating bearing (20), a positioning screw rod (21), a locking hand wheel (22) and a positioning screw sleeve (23), the guide sliding block (17) is movably arranged inside the guide sliding block (17), the surface of the guide sliding block (17) is penetrated through the positioning screw sleeve (23), the guide sliding box (16) is penetrated inside the guide sliding box (20), the outside of direction slip box (16) is located the one end fixed mounting of positioning lead screw (21) has locking hand wheel (22), the up end fixed mounting of direction slider (17) has centre gripping support arm (18), the fixed surface mounting of centre gripping support arm (18) has slipmat (19), the lower surface of positioning lead screw (21) and rolling bearing (20) rotate to be connected, the upper surface fixed connection of lower surface and supporting pallet (11) of direction slip box (16), filtration groove (24) have been seted up to the upper surface of supporting pallet (11), positioning swivel nut (23) and direction slider (17) fixed connection, positioning lead screw (21) and positioning swivel nut (23) threaded connection.
4. A hydrogen storage bottle type container heat treatment system according to claim 3, wherein the hydrogen storage bottle body is immersed in the pickling solution for 10-20min, then put into clear water for repeated flushing for 3-5 times, and then put into an oven at 60-80 ℃ for drying for 10-30min.
5. The heat treatment system for hydrogen storage bottle type container according to claim 4, wherein in the primary heat treatment, the hydrogen storage bottle to be heat treated is placed in a heat treatment furnace, the heat treatment furnace is heated to 600-650 ℃, then kept for 5-8 h, after the heat preservation time is completed, the temperature is continuously heated from the control heat treatment furnace to 900+ -30 ℃ at a heating rate of 100-120 ℃/h, kept for 6-12h, and finally the trolley is lifted down to be water-cooled to 400-450 ℃.
6. The heat treatment system for hydrogen storage bottle type container according to claim 1, wherein in the secondary heat treatment, the hydrogen storage bottle after the primary normalizing is loaded into a heat treatment furnace for the secondary heat treatment at 360+/-10 ℃, the heat is preserved for 8-12 hours, then the temperature is raised to 800+/-20 ℃ at the heating rate of 100-120 ℃/h, the temperature is preserved for 38-50 hours and then cooled to be lower than 150 ℃, and finally the hydrogen storage bottle is lifted out of the heat treatment furnace, so that the heat treatment work for the hydrogen storage bottle after forging is completed.
7. The heat treatment system for hydrogen storage bottle type container according to claim 1, wherein the hydrogen storage bottle is fed into the quenching chamber for quenching during quenching, then the hydrogen storage bottle is slowly cooled to 100-120 ℃ in quenching oil for 30-40min, and finally the hydrogen storage bottle enters the tempering furnace for tempering after being removed from the quenching chamber.
8. The heat treatment system for hydrogen storage bottle type container according to claim 1, wherein during cleaning, the quenched hydrogen storage bottle is placed in a cleaning solution to clean stains generated during heat treatment, after the cleaning of the hydrogen storage bottle body is completed, the bottle mouth part of the hydrogen storage bottle is placed downwards for 5-10min, and then the hydrogen storage bottle is placed in an oven at 80-100 ℃ to be dried for 10-20min.
9. The heat treatment system for hydrogen storage bottle type container according to claim 1, wherein in the exhaust gas treatment stage, exhaust gas generated after tempering and quenching can be collected by the collecting cover and then sent into the spray tower for pre-dedusting and pre-cooling, and finally the exhaust gas is discharged after entering the condensing exchanger for cooling.
10. The heat treatment system of a hydrogen storage bottle container according to claim 1, wherein the rust-proof liquid in the rust-removing treatment of the bottle body consists of 20% sodium benzoate, 30% anhydrous carbonic acid, 20% polyacrylic acid, 20% caustic soda flakes and 10% sodium molybdate, the rust-removing treatment time is controlled to be 7min, and the standing time of the hydrogen storage bottle taken out of the rust-proof liquid is controlled to be 10min; the pickling time is controlled to be 10min in the pickling bottle body treatment, and then the bottle body is put into clear water to be repeatedly washed for 3 times and then put into an oven at 80 ℃ to be dried for 10min; heating the heat treatment furnace to 600 ℃ in the first normalizing treatment, then preserving heat for 5 hours, continuously heating from the control heat treatment furnace to 930 ℃ at a heating rate of 100 ℃/h after the heat preservation time is finished, preserving heat for 6 hours, finally hanging down a trolley for water cooling to 400 ℃, loading a hydrogen storage bottle into the heat treatment furnace for carrying out the second heat treatment at 370 ℃ in the second normalizing treatment, preserving heat for 10 hours, heating to 820 ℃ at a heating rate of 120 ℃/h, preserving heat for 40 hours, cooling to less than 150 ℃, cooling by using a cooling liquid in the process, and finally hanging the hydrogen storage bottle out of the heat treatment furnace to finish the heat treatment work after forging the hydrogen storage bottle; the hydrogen storage bottle is placed into quenching oil to be slowly cooled to 100 ℃ in the normalizing treatment, the cooling time is 30min, the standing time of the hydrogen storage bottle in the water washing treatment is controlled to be 10min, and then the hydrogen storage bottle is placed into a drying oven at 100 ℃ to be dried for 10min.
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JPH0920920A (en) * 1995-07-04 1997-01-21 Kawasaki Steel Corp Production of steel for medium-and high-temperature pressure vessel
WO2008123397A1 (en) * 2007-03-29 2008-10-16 Sumitomo Metal Industries, Ltd. Case-hardened steel pipe excellent in workability and process for production thereof
CN108203802A (en) * 2017-12-29 2018-06-26 魏龙飞 A kind of metal heating processing technology
CN110592328A (en) * 2019-10-22 2019-12-20 徐州彭圆锻造有限公司 Surface heat treatment process for metal piece
CN111235369A (en) * 2018-11-29 2020-06-05 南京理工大学 Method for improving hydrogen embrittlement resistance of 304 austenitic stainless steel
CN112372238A (en) * 2020-09-29 2021-02-19 浙江蓝能燃气设备有限公司 High-pressure ultrahigh-pressure hydrogen storage bottle type container and manufacturing method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0920920A (en) * 1995-07-04 1997-01-21 Kawasaki Steel Corp Production of steel for medium-and high-temperature pressure vessel
WO2008123397A1 (en) * 2007-03-29 2008-10-16 Sumitomo Metal Industries, Ltd. Case-hardened steel pipe excellent in workability and process for production thereof
CN108203802A (en) * 2017-12-29 2018-06-26 魏龙飞 A kind of metal heating processing technology
CN111235369A (en) * 2018-11-29 2020-06-05 南京理工大学 Method for improving hydrogen embrittlement resistance of 304 austenitic stainless steel
CN110592328A (en) * 2019-10-22 2019-12-20 徐州彭圆锻造有限公司 Surface heat treatment process for metal piece
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