CN213232402U - Heat insulation device for heat treatment of pressure vessel and heat treatment trolley with heat insulation device - Google Patents
Heat insulation device for heat treatment of pressure vessel and heat treatment trolley with heat insulation device Download PDFInfo
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- CN213232402U CN213232402U CN202020573596.5U CN202020573596U CN213232402U CN 213232402 U CN213232402 U CN 213232402U CN 202020573596 U CN202020573596 U CN 202020573596U CN 213232402 U CN213232402 U CN 213232402U
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Abstract
The invention discloses a heat insulation device for heat treatment of a pressure vessel aiming at large austenitic stainless steel and a heat treatment trolley with the heat insulation device. It is used for carrying out the water filling port to the cooling bath internal water injection that is used for setting up on the cooling bath that insulates against heat refrigerated cooling groove and the cooling bath to pressure vessel, and pressure vessel settles the top at the cooling bath through the pillar and carries out heat-proof and cooling water by the cooling bath and cool off, is provided with the delivery port on the cooling bath, thereby the height that highly is less than the cooling bath of delivery port enables the cooling water and carries out the overflow. After adopting foretell structure, the influence of heat treatment furnace platform truck when having significantly reduced to stainless steel pressure vessel cooling has accelerated the cooling rate of material greatly, has promoted the corrosion resisting property and the mechanical properties of material, in addition, is provided with a plurality of water inlets of staggering arranging and the anti-splash structure that corresponds with the water inlet position on the cooling bath, has promoted the rivers homogeneity greatly, has guaranteed security and the practicality of heat-proof device when using.
Description
Technical Field
The utility model relates to an in the steel pressure vessel manufacture process, the product carries out the auxiliary device that whole stabilization process adopted, specifically speaking are heat-proof device and have heat-proof device's thermal treatment platform truck to pressure vessel thermal treatment of large-scale austenite stainless steel.
Background
The austenitic stainless steel has excellent corrosion resistance and excellent machinability, and is widely applied to the manufacture of pressure vessels, but the austenitic stainless steel still has various corrosion risks, the most common corrosion behavior of the austenitic stainless steel is intergranular corrosion, meanwhile, the stainless steel which generates intergranular corrosion can fracture along grain boundaries and almost completely disappear when stressed, which is one of the most dangerous damage forms of the stainless steel, and the current means for preventing the austenitic stainless steel from generating the intergranular corrosion include the following steps:
1. ultra-low carbon type austenitic stainless steel is adopted;
2. adopting austenitic stainless steel added with stabilizing elements;
3. the austenitic stainless steel added with the stabilizing element is adopted, and the stabilizing treatment is carried out after the equipment is manufactured.
The purpose of stabilizing treatment is to keep the temperature of stabilizing elements (generally titanium or niobium) contained in the austenitic stainless steel at 850-950 ℃ so that the stabilizing elements react with carbon elements in preference to chromium elements in the austenitic stainless steel, thereby ensuring that enough chromium elements are still ensured when the austenitic stainless steel is used at a specific temperature to avoid intergranular corrosion.
In the test process, the applicant finds that when the cooling speed of the stabilizing treatment is slow, a large amount of precipitated phases appear in the metallographic structure of the austenitic stainless steel, and the plasticity and the corrosion resistance of the material are greatly reduced.
In the prior art, when a large austenitic stainless steel pressure container is subjected to overall stabilization treatment, a trolley type heat treatment furnace is generally adopted, a trolley is used as a carrier of the large austenitic stainless steel pressure container, and main materials of the trolley are refractory bricks and aluminum silicate heat insulation cotton, so that the trolley has good heat insulation performance, but the cooling speed is slow, and the continuous high temperature of the trolley can reduce the cooling speed of the austenitic stainless steel pressure container in the cooling process of the stabilization treatment, so that the material performance is finally deteriorated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a pressure vessel thermal treatment that can reduce the influence of thermal treatment stove platform truck temperature to stainless steel pressure vessel cooling rate is with heat-proof device and have heat-proof device's thermal treatment platform truck in the cooling process of stabilization treatment.
In order to solve the technical problem, the utility model discloses a heat-proof device for pressure vessel heat treatment, including being used for carrying out the water filling port that is used for to the water injection in the cooling bath that sets up on heat-insulating refrigerated cooling bath and the cooling bath to pressure vessel, pressure vessel settles in the top of cooling bath through the pillar and is insulated against heat and cool off with the cooling water by the cooling bath, is provided with the delivery port on the cooling bath, thereby the height that highly is less than the cooling bath of delivery port enables the cooling water and carries out the overflow.
And a splash-proof blanket is arranged in the cooling tank and corresponds to the water injection position of the water injection port.
The splash-proof blanket is made of glass fiber materials.
Labyrinth type partition plates are arranged in the cooling tank, and cooling water injected into the cooling tank can be uniformly distributed between the adjacent partition plates under the guidance of the partition plates.
The water injection ports are provided with a plurality of water injection ports, and the water injection ports are distributed on the side part of the cooling tank and are arranged in a staggered mode.
The water filling port is a plurality of water inlet stations arranged on the cooling tank, and the water inlet stations are provided with water inlet pipelines which are positioned and installed through movable supports to realize water inlet into the cooling tank.
The cooling tank is a frame made of stainless steel material.
A heat treatment trolley with a heat insulation device comprises a carrier made of refractory bricks and aluminum silicate heat insulation cotton, and the heat insulation device, the area of which is smaller than that of the carrier, is arranged above the carrier, a support table is arranged on the carrier, and the heat insulation device is supported above the carrier through the support table.
After adopting foretell structure, through the heat-proof device to design between austenitic stainless steel pressure vessel and thermal treatment platform truck, make the heat-proof device cooling down through the cooling water, thereby the influence when the thermal treatment stove platform truck cools off stainless steel pressure vessel has significantly reduced, the cooling rate of material has been accelerated greatly, the corrosion resisting property and the mechanical properties of material have been promoted, in addition, be provided with a plurality of water filling ports of staggering arranging and the anti-splash structure that corresponds with the water filling port position on the cooling bath, the rivers homogeneity has been promoted greatly, the security and the practicality of heat-proof device when using have been guaranteed.
Drawings
FIG. 1 is a schematic front view of a heat treatment cart with a heat insulation device according to the present invention;
FIG. 2 is a schematic top view of the heat treatment cart with the heat insulation device according to the present invention;
fig. 3 is a schematic view of the cross-sectional structure a-a of fig. 1.
Detailed Description
The heat insulating device for heat treatment of a pressure vessel and the heat treatment cart having the heat insulating device according to the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
The first embodiment is as follows:
as shown in the figure, the heat insulation device for heat treatment of the pressure vessel of the utility model comprises a cooling tank 2 for heat insulation and cooling of the pressure vessel 1 and a water filling port 3 arranged on the cooling tank and used for filling water into the cooling tank, a splash-proof blanket 5 made of glass fiber material is arranged in the cooling tank 2, the splash-proof blanket 5 corresponds to the water filling position of the water filling port 3, and can prevent a large amount of spray from splashing after the normal temperature water is filled in and contacted with the heat insulation device with high temperature, thereby damaging the firebrick and the pressure vessel on the surface of the heat treatment furnace trolley, the cooling tank 2 is a frame made of stainless steel material, the frame is a groove body formed by a bottom plate and side plates arranged around the bottom plate, the frame made of the stainless steel material can ensure that the frame can still keep enough high temperature strength and better structural stability in the high temperature heat preservation stage (850 ℃ -950 ℃) of stabilization treatment, so that the cooling tank generates slight deformation under high, the use of the cooling tank is not influenced, labyrinth type clapboards 6 are arranged in the cooling tank 2, as can be seen from the figure, the clapboards are arranged in the cooling tank in a staggered way, therefore, the cooling water injected into the cooling tank 2 can be uniformly distributed between the adjacent partition plates under the guidance of the partition plates 6, so that the flow of the cooling water in the cooling tank is more uniform, the uniformity of water level rise is improved, the deformation of the cooling tank caused by overhigh temperature is also prevented, the pressure container 1 is arranged above the cooling tank through the support columns 9 and is insulated by the cooling tank and cooled by the cooling water, the cooling tank 2 is provided with a plurality of water outlets 4, the height of each water outlet 4 is lower than that of the cooling tank so as to enable the cooling water to overflow, in addition, each water outlet needs to be installed in an inclined downward way by 45 degrees, meanwhile, the water outlet properly extends out of the heat treatment trolley, so that the circulating water outlet flows to the area outside the heat treatment furnace trolley.
Further, water filling port 3 said are provided with a plurality ofly, and each water filling port 3 distributes at the cooling bath lateral part and staggers to arrange and form multidirectional income water, through a plurality of water filling port designs, divide into the several region with the cooling bath, and every region all has rivers to flow for make the flow of cooling water in each region more even, of course also can be with water filling port and cooling bath design for split type structure, promptly: a plurality of stations of intaking, with the water intake pipe through adopting movable support location in the outside of cooling bath, make the water intake pipe can remove from this, can realize the intaking of a plurality of positions equally, can promote the homogeneity that the water level rises through a plurality of water filling ports of design, especially delivery port and the quantity of water filling port are unanimous and can the symmetry set up, realize cooling through the circulating water, can form the circulative cooling effect from this.
In addition, the length of the pressure container 1 is smaller than that of the cooling tank, the width of one cooling tank can accommodate a plurality of pressure containers, so that more than one pressure container 1 can be cooled in one cooling tank (the cooling tank in the embodiment cools three pressure containers), so that the heat insulation device can realize the bottom full-area covering heat insulation of the large austenitic stainless steel pressure container, that is, the length and width dimensions of the cooling tank need to exceed the bottom dimensions of the austenitic stainless steel pressure container, preferably, the length and width dimensions respectively exceed 1000mm, and when three pressure containers exist, the width refers to the distance from the outermost one pressure container to the width edge of the cooling tank, so as to ensure that the stainless steel pressure container can realize the full-area heat insulation.
Example two:
the utility model discloses a heat treatment trolley with heat-proof device, include the heat-proof device that the area that the carrier 7 and carrier top that are made by resistant firebrick and aluminium silicate heat preservation cotton set up is less than the area of carrier, the brace table 8 that sets up on the carrier 7, heat-proof device supports above the carrier through brace table 8, when using, after the high temperature heat preservation process of large-scale austenitic stainless steel pressure vessel stabilization treatment ended, the heat treatment furnace gate was opened, the trolley shifts out the work piece from the heat treatment furnace, when the trolley finishes shifting out the heat treatment furnace, wear the high temperature protective clothing by the heat treatment worker and move water filling port and movable support to corresponding water inlet position, and open the water intaking valve, pour into the running water to appointed water inlet position, the running water pours into on the anti-spray blanket, the anti-spray blanket of complete infiltration and progressively deposit; the running water is through preventing the splash blanket, according to the runner that the baffle formed, flows to whole cooling bath, and the cooling bath is because high temperature meets water, earlier with the running water atomizing earlier, later the running water deposit and fill in whole cooling bath, when each export has rivers to go out, reduces the running water flow of symmetric position water filling port, guarantees that the whole area of cooling bath bottom all is covered by water after, can realize thermal-insulated effect.
Claims (8)
1. A heat insulation device for heat treatment of a pressure vessel is characterized in that: including being used for carrying out heat-insulating refrigerated cooling tank (2) and cooling tank to pressure vessel (1) on set up be used for to water filling port (3) of cooling tank internal water injection, pressure vessel (1) is settled in the top of cooling tank and is insulated heat and utilize the cooling water to cool off by cooling tank through pillar (9), be provided with delivery port (4) on cooling tank (2), thereby the height that highly is less than the cooling tank of delivery port (4) enables the cooling water and carries out the overflow.
2. The heat insulating apparatus for heat treatment of pressure vessels according to claim 1, wherein: an anti-splashing blanket (5) is arranged in the cooling tank (2), and the anti-splashing blanket (5) corresponds to the water injection position of the water injection port (3).
3. The heat insulating apparatus for heat treatment of pressure vessels according to claim 2, wherein: the splash-proof blanket (5) is made of glass fiber materials.
4. The heat insulating apparatus for heat treatment of pressure vessels according to claim 1, 2 or 3, characterized in that: labyrinth type partition plates (6) are arranged in the cooling tank (2), and cooling water injected into the cooling tank (2) can be uniformly distributed between the adjacent partition plates under the guidance of the partition plates (6).
5. The heat insulating apparatus for heat treatment of pressure vessels according to claim 4, wherein: the cooling tank (2) is a frame made of stainless steel material.
6. The heat insulating apparatus for heat treatment of pressure vessels according to claim 1, 2, 3 or 5, wherein: the water injection ports (3) are arranged in a plurality of numbers, and the water injection ports (3) are distributed on the side part of the cooling tank and are arranged in a staggered mode.
7. The heat insulating apparatus for heat treatment of pressure vessels according to claim 1, 2, 3 or 5, wherein: the water injection ports (3) are a plurality of water inlet stations arranged on the cooling tank, and water inlet pipelines which are installed through the movable support in a positioning mode are arranged at the water inlet stations to realize water inlet into the cooling tank.
8. A heat treatment trolley having the heat insulating device according to any one of claims 1 to 7, characterized in that: the heat insulation device comprises a carrier (7) made of refractory bricks and aluminum silicate heat insulation cotton, and a heat insulation device, wherein the area of the heat insulation device is smaller than that of the carrier, a support table (8) is arranged on the carrier (7), and the heat insulation device is supported above the carrier through the support table (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020573596.5U CN213232402U (en) | 2020-04-16 | 2020-04-16 | Heat insulation device for heat treatment of pressure vessel and heat treatment trolley with heat insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020573596.5U CN213232402U (en) | 2020-04-16 | 2020-04-16 | Heat insulation device for heat treatment of pressure vessel and heat treatment trolley with heat insulation device |
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| CN213232402U true CN213232402U (en) | 2021-05-18 |
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| CN202020573596.5U Active CN213232402U (en) | 2020-04-16 | 2020-04-16 | Heat insulation device for heat treatment of pressure vessel and heat treatment trolley with heat insulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440933A (en) * | 2020-04-16 | 2020-07-24 | 江苏东方瑞吉能源装备有限公司 | Heat insulation device for heat treatment of pressure vessel and heat treatment trolley with heat insulation device |
-
2020
- 2020-04-16 CN CN202020573596.5U patent/CN213232402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111440933A (en) * | 2020-04-16 | 2020-07-24 | 江苏东方瑞吉能源装备有限公司 | Heat insulation device for heat treatment of pressure vessel and heat treatment trolley with heat insulation device |
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Effective date of registration: 20230310 Address after: No. 60, Linjiang West Road, Zhenjiang New District, Jiangsu Province Patentee after: Jiangsu Oriental Ruiji Energy Equipment Co.,Ltd. Patentee after: ZHENJIANG DONGFANG ELECTRIC HEATING TECHNOLOGY CO.,LTD. Address before: No. 60, Linjiang West Road, Zhenjiang New District, Jiangsu Province Patentee before: Jiangsu Oriental Ruiji Energy Equipment Co.,Ltd. |