Spraying device for solid solution heat treatment cooling medium of whole pressure vessel

Abstract

The utility model relates to the technical field of solid solution heat treatment of a whole pressure vessel, in particular to a spraying device for a solid solution heat treatment cooling medium of the whole pressure vessel, which comprises a car platform capable of moving back and forth, a tray is arranged on the upper surface of the car platform, and a bottom support for supporting the pressure vessel is arranged in the tray. Spraying mechanisms for spraying a cooling medium towards the pressure container are arranged on the two sides of the vehicle platform, an opening is formed in the axial end of the pressure container and movably connected with a conveying pipe, and the conveying pipe is located in the pressure container. The cooling medium spraying mechanisms are arranged on the two sides of the pressure container after the pressure container is discharged out of the furnace, and the conveying pipe communicated with the interior of the pressure container is arranged, so that the cooling medium can be sprayed and cooled outside and inside the pressure container at the same time, the cooling effect is improved, the uniform cooling effect is achieved, and the service life of the pressure container is prolonged. And the final solid solution quality is guaranteed, the production and processing efficiency is improved, and meanwhile, the high-temperature car frame is protected from being damaged by a spraying medium.

Description

Technical Field

[0001] The utility model relates to the technical field of solid solution heat treatment of a whole pressure vessel, in particular to a spraying device for cooling medium of solid solution heat treatment of a whole pressure vessel. Background Art

[0002] Sometimes, the medium may easily cause stress corrosion of the pressure vessel, and the entire pressure vessel needs to be subjected to a solid solution heat treatment. The solid solution heat treatment process of the entire pressure vessel requires several special conditions: there must be a heating furnace of corresponding size and heating temperature; the pressure vessel needs to be quickly cooled (after being dragged out of the heating furnace); during the cooling process of the entire pressure vessel, it is necessary to ensure that the entire pressure vessel does not exceed the standard deformation. When the SA240-310S (Chinese standard is 0Cr25Ni20) entire pressure vessel is subjected to a solid solution treatment scheme, a car-bottom electric furnace or a car-bottom gas furnace is generally used for heating and insulation, and then forced air cooling is performed. In order to achieve different mechanical properties of the pressure vessel, the cooling effect of air cooling is poor and cannot meet the cooling requirements. It is necessary to adjust the cooling method after leaving the furnace. Therefore, a spray device for the cooling medium of the solid solution heat treatment of the entire pressure vessel is urgently needed. Utility Model Content

[0003] The purpose of the utility model is to provide a spraying device for cooling medium of solution heat treatment of an entire pressure vessel, which can solve the above technical problems.

[0004] The utility model provides a spraying device for a cooling medium for a solution heat treatment of an entire pressure vessel, comprising a reciprocatingly movable platform, a tray being provided on the upper surface of the platform, a bottom bracket for supporting the pressure vessel being provided inside the tray, spraying mechanisms for the cooling medium of the pressure vessel being sprayed in a direction toward the pressure vessel being provided on both sides of the platform, an opening being provided at one axial end of the pressure vessel and being movably connected with a delivery pipe, and the delivery pipe being located inside the pressure vessel.

[0005] Furthermore, a roller which moves along the length direction of the platform is provided at the bottom of the platform.

[0006] Furthermore, the tray is used to hold cooling water.

[0007] Furthermore, the supporting surface of the base is a U-shaped structure.

[0008] Furthermore, the cooling medium spraying mechanism includes a main pipeline along the moving direction of the platform, and branch pipelines perpendicular to the main pipeline are arranged at intervals on the main pipeline. A plurality of horizontal cooling medium spraying pipes are arranged on the branch pipelines. Both ends of the cooling medium spraying pipes are closed, and a plurality of radial holes are arranged axially on the side close to the pressure vessel.

[0009] Furthermore, the branch pipeline is composed of a straight pipe at the bottom and an arc-shaped pipe at the top.

[0010] Furthermore, the end of the delivery pipe is closed, and a plurality of through holes are evenly distributed on the side surface along the circumferential direction.

[0011] Further, the opening is larger than the diameter of the delivery pipe.

[0012] Furthermore, a base is provided at the bottom of the conveying pipe, and a moving wheel is provided at the bottom of the base.

[0013] Furthermore, the pressure vessel is connected with a thermocouple compensation wire.

[0014] There are three states of cooling media mentioned above: compressed air, tap water and high-pressure water (with high-pressure water pump). They are determined by the type of pressure vessel material (CCT curve) and the wall thickness of the pressure vessel.

[0015] Beneficial effects:

[0016] The utility model arranges a spray mechanism for the cooling medium on both sides of the pressure vessel after it comes out of the furnace, and is provided with a delivery pipe that leads into the interior of the pressure vessel, so that the outside of the pressure vessel and the inside of the pressure vessel can be sprayed with the cooling medium for cooling at the same time, thereby improving the cooling effect, achieving a uniform cooling effect, ensuring the final solid solution quality, solving the technical problem of poor cooling effect, and improving the production and processing efficiency and the utilization rate of the heating furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the pressure vessel of the utility model when being pulled out of the heating furnace;

[0020] Figure 3 It is a schematic diagram of the cooling medium spray pipe in the utility model.

[0021] Explanation of the reference numerals: 1- platform, 2- tray, 3- bottom support, 4- conveying pipe, 5- roller, 6- main pipeline, 7- branch pipeline, 8- cooling medium spray pipe, 801- radial hole, 9- base, 10- moving wheel, 11- thermocouple compensation wire, 12- heating furnace, 13- pressure vessel. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example 1

[0026] A spraying device for solution heat treatment cooling medium of a whole pressure vessel, such as Figure 1-3As shown, it includes a platform 1 that can move back and forth. The bottom of the platform 1 is provided with a roller 5 that moves along the length direction of the platform 1. The roller 5 is provided below the roller 5 to match it. The upper surface of the platform 1 is provided with a tray 2, and the tray 2 is used to hold cooling water; the tray 2 is provided with a bottom bracket 3 for supporting the pressure vessel 13, and the supporting surface of the bottom bracket 3 is a U-shaped structure, and three are provided at intervals along the length direction of the tray 2. Both sides of the platform 1 are provided with a spray mechanism for spraying the cooling medium toward the pressure vessel 13. One end of the axial direction of the pressure vessel 13 is provided with an opening and is movably connected with a delivery pipe 4. Specifically, the delivery pipe 4 extends into the interior of the pressure vessel 13, wherein the opening is larger than the diameter of the delivery pipe 4, the end of the delivery pipe 4 is closed, and the side surface is uniformly provided with multiple through holes along the circumferential direction. When in use, the cooling medium is transported into the delivery pipe 4, and then the cooling medium is sprayed out in the through holes located inside the pressure vessel 13 to cool the pressure vessel. A base 9 is provided at the bottom of the conveying pipe 4 , and a moving wheel 10 is provided at the bottom of the base 9 , which can also move back and forth along the moving direction of the platform 1 .

[0027] The cooling medium spraying mechanism includes a main pipeline 6 laid along the moving direction of the platform 1, and branch pipelines 7 perpendicular to the main pipeline 6 are arranged at intervals. The branch pipeline 7 is composed of a straight pipe at the bottom and an arc-shaped pipe at the top. Four horizontal cooling medium spraying pipes 8 are arranged on the branch pipeline 7, three of which are connected to the arc-shaped pipes, and one is connected to the straight pipe. Both ends of the cooling medium spraying pipe 8 are closed, and a plurality of radial holes 801 are arranged axially on the side close to the pressure vessel.

[0028] Working and use process:

[0029] The heating furnace 12 adopts a bottom-drawn heating furnace. The size of the heating furnace should be based on the inner cavity being able to accommodate the entire pressure vessel. The car can freely enter and exit the furnace mouth. A square tray 2 made of steel plate is placed between the pressure vessel 13 and the upper surface of the car 1, and is heated together with the pressure vessel 13. Before heating, the pressure vessel 13 is placed on the bottom support 3, and the car 1 and the tray 2 are pushed into the heating furnace 12 together for heating. After the heating is completed, the pressure vessel 13 is removed from the heating furnace 12 using the car 1. At this time, a thermocouple compensation wire 11 is connected to the pressure vessel and is dragged out synchronously with the pressure vessel 13, so that the temperature of the pressure vessel can be continuously recorded. The thermocouple compensation wire should be long to prevent it from being pulled apart. When the carriage 1 comes out of the heating furnace 12 with the pressure vessel 13 (which has been heated up) and stops on the track, water is first immediately poured into the tray 2. Then, with the movement of the base 9, the delivery pipe 4 is extended into the opening of the pressure vessel 13, the spraying mechanism of the cooling medium and the valve of the delivery pipe are started, and the cooling medium is delivered to the interior of the pressure vessel 13 by the delivery pipe 4 to cool the inner wall of the pressure vessel; the cooling medium is delivered to the branch pipe 7 through the main pipe 6 and then sprayed out in the cooling medium spray pipe 8 to cool the outer wall of the pressure vessel 13.

[0030] It should be noted that: there are two types of cooling media sprayed from the delivery pipe 4 and the cooling medium spray pipe 8, which can be freely selected according to actual conditions, one is tap water and the other is compressed air; the premise for using the delivery pipe 4 is that one end of the pressure vessel 13 has an opening; this device can enable pressure vessels of different material grades and different thicknesses to achieve the corresponding solid solution treatment purpose; the components placed in the heating furnace for heating in this device are all made of carbon steel, and the purposes of the tray 2 are as follows: when the pressure vessel is sprayed, the heat radiation of the high-temperature platform is isolated; when the cooling medium is water, the water can be caught, and the high-temperature platform will not be damaged by the spraying water.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A spraying device for cooling medium for solution heat treatment of an entire pressure vessel, characterized in that: It comprises a reciprocating platform, the upper surface of the platform is provided with a tray, the tray is provided with a bottom bracket for supporting the pressure vessel, both sides of the platform are provided with spraying mechanisms for the cooling medium spraying toward the pressure vessel, one axial end of the pressure vessel is provided with an opening and is movably connected with a delivery pipe, and the delivery pipe is located inside the pressure vessel.

2. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 1, characterized in that: The bottom of the platform is provided with a roller which moves along the length direction of the platform.

3. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 1, characterized in that: The tray is used for containing cooling water.

4. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 1, characterized in that: The supporting surface of the bottom bracket is a U-shaped structure.

5. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 1, characterized in that: The cooling medium spraying mechanism comprises a main pipeline along the moving direction of the platform, branch pipelines perpendicular to the main pipeline are arranged at intervals on the main pipeline, and a plurality of horizontal cooling medium spraying pipes are arranged on the branch pipelines. Both ends of the cooling medium spraying pipes are closed, and a plurality of radial holes are arranged axially on the side close to the pressure vessel.

6. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 5, characterized in that: The branch pipeline is composed of a straight pipe at the bottom and an arc-shaped pipe at the top.

7. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 1, characterized in that: The end of the delivery pipe is closed, and a plurality of through holes are evenly distributed on the side surface along the circumferential direction.

8. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 7, characterized in that: The opening is larger than the diameter of the delivery tube.

9. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 8, characterized in that: A base is provided at the bottom of the conveying pipe, and a moving wheel is provided at the bottom of the base.

10. The spraying device for cooling medium of solution heat treatment of the whole pressure vessel according to claim 1, characterized in that: The pressure vessel is connected with a thermocouple compensation wire.

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