CN109897947A - The heat treatment method of vertical pressure kettle for deep-sea simulated pressure test cylinder - Google Patents
The heat treatment method of vertical pressure kettle for deep-sea simulated pressure test cylinder Download PDFInfo
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- CN109897947A CN109897947A CN201810570993.4A CN201810570993A CN109897947A CN 109897947 A CN109897947 A CN 109897947A CN 201810570993 A CN201810570993 A CN 201810570993A CN 109897947 A CN109897947 A CN 109897947A
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Abstract
The present invention relates to a kind of heat treatment methods of vertical pressure kettle for deep-sea simulated pressure test cylinder, by the upper and lower cylinder of the cylinder of the vertical pressure kettle of quasi- heat treatment point；Upper shell and barrel end are welded into upper shell component, and lower shell and end socket are welded into lower shell component；Upper shell component is sent into heat-treatment furnace, carries out first time heat treatment；Barrel end and flat cover component, shearing ring mating surface are finished; after finishing with lower shell component integral solder; lower shell component and upper shell components are carried out second into heat-treatment furnace to be heat-treated, upper shell component residue small part and flat cover component, shearing ring are thermally shielded protection outside furnace.The present invention both ensure that the quality requirement of welding heat treatment using the heat treatment method of segmentation, in turn ensure that the requirement of the water pressure test is done in assembly sealing, to reach requirement.Secondary heat treatment of the present invention can remove welding stress, guarantee the requirement after barrel end finishes with flat cover component, the assembly sealed precision of shearing ring.
Description
Technical field
The present invention relates to a kind of heat treatment methods of vertical pressure kettle for deep-sea simulated pressure test cylinder.
Background technique
In the manufacturing process of pressure vessel, as the field that pressure vessel and equipment uses is more and more extensive, pressure is held
The manufacture of device equipment requires higher and higher, this is just needed in the fabrication process, no matter all must guarantee in any condition
The inherent quality of pressure vessel guarantees the service life of pressure vessel again, and to manufacture, pressure vessel and equipment manufacturer is proposed
Higher requirement.
The main equipment " vertical pressure kettle " of deep-sea simulated pressure test cylinder belongs to the pressure vessel of forge welding structure at being arranged
Standby, equipment operating pressure is 10MPa, and design pressure 11MPa, overall device maximum outside diameter is φ 3200mm, inner space φ
3000mm × 6000mm (tangent distance) always weighs about 132 tons, belongs to large equipment；.
For operation in the equipment of the underwater robot test in the sea area of the depth of water in 1000m.The equipment is in design process
In, it is contemplated that if by the way of being heat-treated again after integral solder, thering are two processes can not achieve: first, without that can carry
More than 100 tons of finish machining equipment finishes barrel end；Second, rolling equipment (cylinder thickness without cylinder steel plate
Diameter after the steel plate that degree is 100mm is rolled into is φ 3200mm, height 6000mm).
Summary of the invention
The purpose of the present invention is be directed to above-mentioned status, it is intended to which one kind both can guarantee the vertical pressure of deep-sea simulated pressure test cylinder
The quality requirement of power kettle post weld heat treatment, and can guarantee that trying for deep-sea simulated pressure for the requirement of the water pressure test is done in assembly sealing
Test the heat treatment method of the vertical pressure kettle of cylinder.
The object of the invention implementation is the heat treatment method of the vertical pressure kettle for deep-sea simulated pressure test cylinder,
Specific step is as follows:
1) divide the cylinder of the vertical pressure kettle of quasi- heat treatment to upper shell and lower shell；
2) the upper and lower cylinder set by step 1) is rolled respectively by two steel plates, and barrel end and upper shell are welded
Upper shell component is formed after the completion of connecing, lower shell and end socket are welded to form lower shell component；
3) upper shell component is sent into heat-treatment furnace, turns off Compaction of Heating Furnace Door and carries out first time heat treatment；
4) after the completion of upper shell component is heat-treated for the first time through step 1), by the barrel end and flat cover in upper shell component
Component, shearing ring mating surface are finished, to meet finishing matching requirements；
5) upper shell component and flat cover component, shearing ring and the lower shell component completed the finishing of step 2) are whole
Welding, after the completion of welding；Lower shell component and upper shell components are carried out second into heat-treatment furnace to be heat-treated, turns off and adds
Hot stove fire door；Upper shell component residue small part and flat cover component, shearing ring are thermally shielded protection outside furnace；
The upper shell component is into heat-treatment furnace part are as follows: circular weld is away from fire door 1500- between upper shell, lower shell
2000mm。
The main pressurized element cylinder of vertical pressure kettle is divided into upper shell and lower shell by the present invention, and using the heat of segmentation
Processing method both ensure that the quality requirement of welding heat treatment, in turn ensure that the requirement of the water pressure test is done in assembly sealing, to reach
To requirement.Barrel end,
Secondary heat treatment method of the invention can reach two purposes: first is that removing welding stress；Second is that ensure that cylinder end
Portion finishing after with flat cover component, shearing ring assembly sealed precision requirement.
Detailed description of the invention
Fig. 1 is schematic diagram of product structure of the invention,
Fig. 2 is piecewise heat treatment method shove charge schematic diagram of the present invention,
Fig. 3 is present invention segmentation integral heat-processing method shove charge schematic diagram again,
Fig. 4 is the present invention segmentation heat-insulated schematic diagram of integral heat-processing method shove charge again.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings.
Specific steps of the invention are as follows:
1) divide the cylinder of the vertical pressure kettle of quasi- heat treatment to upper shell and lower shell.
2) the upper and lower cylinder set by step 1) is rolled respectively by two steel plates, by barrel end 3 and upper shell 4
Upper shell component is formed after the completion of welding, lower shell 5 and end socket 6 are welded to form lower shell component.
The main pressurized element cylinder of vertical pressure kettle is divided into upper shell and lower shell by the present invention.Upper shell and cylinder end
Portion is welded to form upper shell component；Lower shell and end socket are welded to form lower shell component.After the completion of latter two right components welding again
The structure type being sealed with flat cover, shearing ring.Such design solves the problems, such as equipment, and has saved cost, but
Such design increases difficulty to heat treatment process.Therefore present invention employs following heat treatment modes twice.
3) it by upper shell component on the trolley 9 of heat-treatment furnace, leveled up, put surely with parallels 8 below, turn off heating-furnace
Door 7 carries out first time heat treatment (see Fig. 2)；
4) after the completion of upper shell component is heat-treated for the first time, by upper shell component barrel end and flat cover component, cut
It cuts ring mating surface to be finished, meets finishing matching requirements.
Barrel end in upper shell component need to reach the sealing matching requirements with flat cover component and shearing ring, therefore, this
After the completion of invention finishes barrel end, the barrel end in upper shell component cannot be heat-treated into heating furnace again, with protection
The polished surface of barrel end.Therefore second of the present invention is heat-treated using following heat treatment modes.
5) upper shell component and flat cover component, the shearing ring and lower shell component integral solder of completion will have been finished, has been welded
After the completion of connecing, on the table 9, and leveled up with parallels 8, put it is steady, by lower shell component and upper shell components into heat treatment
Furnace carries out second and is heat-treated, and turns off Compaction of Heating Furnace Door.Upper shell component residue small part and flat cover component, shearing ring are outside furnace
It is thermally shielded protection.
The upper shell component is into heat-treatment furnace part are as follows: circular weld 10 is away from fire door 1500- between upper shell, lower shell
2000mm (see Fig. 3)；
Referring to Fig. 4, when being heat-treated for second, the barrel end finished in upper shell component is outside heating furnace
The uniformity for guaranteeing the temperature in burner hearth, and also to guarantee the barrel body end cover finished in the upper shell component outside burner hearth
Otherwise not temperature distortion influences sealing assembly.After turning off fire door 7, there is a big chunk gap between fire door 7 and table 9.In
It is the present invention along the gap of upper shell outer diameter and heating furnace furnace wall block heat resisting brick 12, outer-diameter circular arc transition position asbestos fibre
11 sealings are tight, sealed tightly at cylinder bore with refractory slab 13, it is ensured that be normal heating temperature in heating furnace.
Such as use present invention heat treatment outer diameter for φ 3200mm, internal diameter is φ 3000mm, head room 7320mm (tangent line
Distance 6000mm), 132 tons of vertical pressure kettle (see Fig. 1) is always weighed about, welding finished product gross weight is 119 tons, upper shell and lower cylinder
Body is rolled by the steel plate for the Q345R material that two block sizes are 10880mm*3050mm*100mm and is welded, respectively to will stand
Formula autoclave pressure is divided into two sections, and one section is upper shell and barrel end is welded to form upper shell component, and weight is 78 tons；Another section is
Lower shell and end socket are welded to form lower shell component.
End socket and cylinder material are Q345R, are rolled and are welded by steel plate.
It is the quality requirement that ensure that post weld heat treatment using the heat-treatment technology method whole again that is segmented of the invention, again
It ensure that heat damage does not deform at barrel end finishing position, so as to reach the requirement of the assembly sealing water pressure test.
Claims (4)
1. the heat treatment method of the vertical pressure kettle for deep-sea simulated pressure test cylinder, which is characterized in that specific step is as follows:
1) divide the cylinder of the vertical pressure kettle of quasi- heat treatment to upper shell and lower shell；
2) the upper and lower cylinder set by step 1) is rolled respectively by two steel plates, and barrel end and upper shell have been welded
At rear composition upper shell component, lower shell and end socket are welded to form lower shell component；
3) upper shell component is sent into heat-treatment furnace, turns off Compaction of Heating Furnace Door and carries out first time heat treatment；
4) after the completion of upper shell component is heat-treated for the first time through step 1), by the barrel end and flat cover group in upper shell component
Part, shearing ring mating surface are finished, to meet finishing matching requirements；
5) upper shell component and flat cover component, shearing ring and lower shell component that the finishing of step 2) is completed integrally are welded
It connects, after the completion of welding；Lower shell component and upper shell components are carried out second into heat-treatment furnace to be heat-treated, turn off heating
Furnace door；Upper shell component residue small part and flat cover component, shearing ring are thermally shielded protection outside furnace；
The upper shell component is into heat-treatment furnace part are as follows: circular weld is away from fire door 1500-2000mm between upper shell, lower shell.
2. the heat treatment method of the vertical pressure kettle according to claim 1 for deep-sea simulated pressure test cylinder, special
Sign is: building heat resisting brick along the gap of upper shell outer diameter and heating furnace furnace wall, outer-diameter circular arc transition position asbestos fibre is close
Reality is obturaged, is sealed tightly at cylinder bore with refractory slab.
3. the heat treatment method of the vertical pressure kettle according to claim 1 for deep-sea simulated pressure test cylinder, special
Sign is: upper shell and lower shell, is rolled up respectively by the steel plate for the Q345R material that two block sizes are 10880mm*3050mm*100mm
System is welded.
4. the heat treatment method of the vertical pressure kettle according to claim 1 for deep-sea simulated pressure test cylinder, special
Sign is: end socket and cylinder material are Q345R, are rolled and are welded by steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810570993.4A CN109897947B (en) | 2018-06-05 | 2018-06-05 | Heat treatment method of vertical pressure kettle for deep sea simulation pressure test cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810570993.4A CN109897947B (en) | 2018-06-05 | 2018-06-05 | Heat treatment method of vertical pressure kettle for deep sea simulation pressure test cylinder |
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| CN109897947A true CN109897947A (en) | 2019-06-18 |
| CN109897947B CN109897947B (en) | 2020-11-06 |
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| CN201810570993.4A Active CN109897947B (en) | 2018-06-05 | 2018-06-05 | Heat treatment method of vertical pressure kettle for deep sea simulation pressure test cylinder |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020174919A1 (en) * | 2001-04-09 | 2002-11-28 | Smith Donald W. | High pressure cylinders including backing steel with tool steel lining |
| CN101684516A (en) * | 2008-09-28 | 2010-03-31 | 傅家仁 | Piecewise heat treatment method of large pressure container |
| CN101684515A (en) * | 2008-09-28 | 2010-03-31 | 傅家仁 | In-situ piecewise heat treatment method of large pressure container |
| CN101713020A (en) * | 2008-10-08 | 2010-05-26 | 寿比南 | Internal combustion segmental heat treatment method for pressure container |
| CN105624387A (en) * | 2014-11-28 | 2016-06-01 | 重庆基石机械有限公司 | Heating and cooling method for post-weld heat treatment of pipe fittings |
-
2018
- 2018-06-05 CN CN201810570993.4A patent/CN109897947B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020174919A1 (en) * | 2001-04-09 | 2002-11-28 | Smith Donald W. | High pressure cylinders including backing steel with tool steel lining |
| CN101684516A (en) * | 2008-09-28 | 2010-03-31 | 傅家仁 | Piecewise heat treatment method of large pressure container |
| CN101684515A (en) * | 2008-09-28 | 2010-03-31 | 傅家仁 | In-situ piecewise heat treatment method of large pressure container |
| CN101713020A (en) * | 2008-10-08 | 2010-05-26 | 寿比南 | Internal combustion segmental heat treatment method for pressure container |
| CN105624387A (en) * | 2014-11-28 | 2016-06-01 | 重庆基石机械有限公司 | Heating and cooling method for post-weld heat treatment of pipe fittings |
Non-Patent Citations (1)
| Title |
|---|
| J·S.MCCABE等: ""高压容器的现场组装"", 《化工与通用机械》 * |
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| CN109897947B (en) | 2020-11-06 |
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