Heat insulation device for heat treatment of pressure vessel

Abstract

The utility model discloses a heat insulation device for heat treatment of a pressure vessel, which comprises a cylinder body, a heat insulation layer is arranged outside the cylinder body, the cylinder body comprises a hollow cavity, a heat insulation assembly and a partition plate are arranged in the hollow cavity, and the heat insulation assembly comprises a cooling assembly and a heating assembly. The cooling assembly and the heating assembly are both arranged to be of a spiral linear structure and are arranged in a staggered mode, and a temperature controller and a contactor assembly are arranged on the outer side face of the barrel. The device comprises the cooling assembly and the heating assembly, the cooling function and the heating function are integrated, the temperature controller, the contactor assembly and the heating assembly form a temperature control system, the heating temperature is monitored and controlled in real time through the temperature controller, in the preheating stage, the temperature is slowly increased to the target temperature, material deformation is avoided, and in the heat preservation stage, the temperature is kept stable; and in the cooling stage, water cooling is conducted through the cooling assembly, heat stress is reduced through uniform cooling, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel heat treatment technology, specifically to a heat insulation device for pressure vessel heat treatment. Background Technology

[0002] A pressure vessel is a sealed device that holds gas or liquid under pressure. Its scope is defined as a stationary or mobile container holding gases and liquefied gases with a maximum working pressure greater than or equal to 0.1 MPa (gauge pressure), and liquids with a maximum working temperature higher than or equal to their standard boiling point, and a volume greater than or equal to 30 L and an inner diameter greater than or equal to 150 mm. Pressure vessels are widely used in many sectors of industry, civil engineering, military industry, and scientific research. Thermal insulation is a crucial step in the heat treatment of pressure vessels. By controlling the cooling rate and temperature distribution, thermal stress is effectively reduced, preventing the risk of cracking caused by stress concentration, while ensuring the stability of the heat treatment process. Through the rational design of thermal insulation devices and the optimization of heat treatment processes, the safety of pressure vessels can be effectively improved and their service life extended.

[0003] The heat treatment process for pressure vessels includes a preheating stage, a heat preservation stage, and a cooling stage. Different equipment is used throughout the heat treatment process, which is quite inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a heat insulation device for heat treatment of pressure vessels to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat insulation device for heat treatment of pressure vessels, comprising a cylindrical body, wherein a heat insulation layer is provided on the outside of the cylindrical body, the cylindrical body includes a hollow cavity, and a heat insulation component and a partition are provided in the hollow cavity, wherein the heat insulation component includes a cooling component and a heating component, both of which are configured as spiral structures and are staggered, and a temperature controller and a contactor assembly are provided on the outer surface of the cylindrical body, and the temperature controller, contactor assembly and heating component are electrically connected.

[0006] The cooling assembly includes a cooling water pipe, with connection ports at both ends of the cooling water pipe, and one connection port of the cooling water pipe is connected to an inlet pipe.

[0007] The other end of the cooling water pipe is connected to the liquid outlet pipe.

[0008] The heating component includes an electric heating element, and power connectors are provided at both ends of the electric heating element.

[0009] The partition plate is provided with a spiral groove structure, and the cooling water pipe and the electric heating pipe are both located within the spiral groove structure.

[0010] The hollow cavity is provided with a first sealing plate at its upper end and a second sealing plate at its lower end.

[0011] The first sealing plate is fixedly connected to the cylinder through a slot, and the second sealing plate is also fixedly connected to the cylinder through a slot.

[0012] The inlet pipe is equipped with a first valve.

[0013] A second valve is installed on the liquid outlet pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The heat insulation component of this utility model includes a cooling component and a heating component, integrating cooling and heating functions into one. The temperature controller, contactor component, and heating component constitute a temperature control system. The heating temperature is monitored and controlled in real time by the temperature controller. In the preheating stage, the temperature is slowly increased to the target temperature to avoid material deformation. In the heat preservation stage, the temperature is kept stable to ensure the heat treatment effect. In the cooling stage, water cooling is performed by the cooling component, which provides uniform cooling and reduces thermal stress. It is easy to use. Attached Figure Description

[0016] Figure 1 This is a top view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure from a bottom view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the cylindrical body of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the cooling component and heating component of this utility model;

[0020] Figure 5 for Figure 4 Enlarged view of a portion of area A in the middle;

[0021] Figure 6 This is a schematic diagram of the structure of the partition of this utility model.

[0022] In the diagram: 1. Cylinder; 2. Insulation layer; 3. Insulation assembly; 4. Inlet pipe; 5. First valve; 6. Outlet pipe; 7. Second valve; 8. Temperature controller; 9. Contactor assembly; 11. Hollow chamber; 12. First sealing plate; 13. Second sealing plate; 14. Partition; 31. Cooling assembly; 32. Heating assembly; 311. Cooling water pipe; 312. Connection port; 321. Heating element; 322. Power connector. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution: a heat insulation device for heat treatment of pressure vessels, including a cylinder 1, with a heat insulation layer 2 on the outside of the cylinder 1. The heat insulation layer 2 is resistant to high temperature and corrosion and has low thermal conductivity, effectively providing heat insulation. The cylinder 1 includes a hollow chamber 11, with a heat insulation component 3 and a partition 14 disposed inside the hollow chamber 11. The heat insulation component 3 includes a cooling component 31 and a heating component 32. Both the cooling component 31 and the heating component 32 are configured with a spiral structure and are staggered. A temperature controller 8 and a contactor assembly 9 are disposed on the outer surface of the cylinder 1, and the temperature controller 8, the contactor assembly 9 and the heating component 32 are electrically connected.

[0025] The size of the cylinder 1 is set according to the actual usage requirements. When using the heat insulation device, the cylinder 1 of the heat insulation device can be directly fitted onto the pressure vessel. The cooling component 31 is used to cool the pressure vessel, and the heating component 32 is used to heat the pressure vessel. The cooling component 31 and the heating component 32 are set independently. The heating component 32 works during the preheating and heat preservation stages, and the cooling component 31 works during the cooling stage.

[0026] The temperature controller 8, contactor assembly 9, and heating assembly 32 constitute a temperature control system. The temperature controller 8 monitors and controls the heating temperature in real time. During the preheating stage, the temperature is slowly increased to the target temperature to avoid material deformation. During the heat preservation stage, the temperature is kept stable to ensure the heat treatment effect. During the cooling stage, water cooling is performed by cooling assembly 31 to reduce thermal stress. The partition 14 separates cooling assembly 31 and heating assembly 32 to reduce the mutual influence between cooling assembly 31 and heating assembly 32 without affecting the cooling and heating of the pressure vessel.

[0027] The cooling component 31 includes a cooling water pipe 311, with connection ports 312 at both ends of the cooling water pipe 311. The connection port 312 at one end of the cooling water pipe 311 is connected to the liquid inlet pipe 4.

[0028] The cooling water pipe 311 has a connection port 312 at the other end connected to the liquid outlet pipe 6.

[0029] Cooling water for cooling enters cooling water pipe 311 through inlet pipe 4 and flows along a designated path within cooling water pipe 311. During the flow of cooling water, heat is carried out to cool the pressure vessel. Cooling liquid carrying waste heat is discharged through outlet pipe 6.

[0030] The heating component 32 includes an electric heating tube 321, with power connectors 322 at both ends of the electric heating tube 321. The thermostat 8 and the contactor assembly 9 are electrically connected to the heating component 32, and the thermostat 8, the contactor assembly 9 and the heating component 32 constitute a temperature control system.

[0031] The partition 14 is provided with a spiral groove structure, and the cooling water pipe 311 and the electric heating pipe 321 are both located in the spiral groove structure. The partition 14 separates the cooling component 31 and the heating component 32, reducing the mutual influence between the two.

[0032] The hollow cavity 11 is provided with a first sealing plate 12 at its upper end and a second sealing plate 13 at its lower end. The upper opening of the hollow cavity 11 is sealed by the first sealing plate 12 and the lower opening of the hollow cavity 11 is sealed by the second sealing plate 13. Both the first sealing plate 12 and the second sealing plate 13 are detachable.

[0033] The first sealing plate 12 is fixedly connected to the cylinder 1 by a slot, and the second sealing plate 13 is fixedly connected to the cylinder 1 by a slot. The first sealing plate 12 and the cylinder 1 are detachably connected, and the second sealing plate 13 and the cylinder 1 are detachably connected. The heat insulation component 3 can be maintained by disassembling the first sealing plate 12 and the second sealing plate 13.

[0034] The inlet pipe 4 is equipped with a first valve 5. When the first valve 5 is opened, the passage of the inlet pipe 4 is opened, and when the first valve 5 is closed, the passage of the inlet pipe 4 is closed.

[0035] The outlet pipe 6 is equipped with a second valve 7. When the second valve 7 is opened, the passage of the outlet pipe 6 is opened, and when the second valve 7 is closed, the passage of the outlet pipe 6 is closed.

[0036] Working principle: In use, the cylinder 1 of the heat insulation device is directly fitted onto the pressure vessel. The temperature controller 8, the contactor assembly 9, and the heating assembly 32 constitute a temperature control system. The heating temperature is monitored and controlled in real time by the temperature controller 8. During the preheating and heat preservation stages, the heating assembly 32 works. During preheating, the temperature is slowly increased to the target temperature to avoid material deformation. During heat preservation, the temperature is kept stable to ensure the heat treatment effect. During the cooling stage, the cooling assembly 31 works. The cooling water used for cooling enters the cooling water pipe 311 through the liquid inlet pipe 4 and flows in the cooling water pipe 311 according to the specified path. During the flow of the cooling water, the heat is carried out, realizing uniform cooling of the pressure vessel. The coolant carrying waste heat is discharged through the liquid outlet pipe 6.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat insulation device for heat treatment of pressure vessels, comprising a cylindrical body (1), characterized in that: The outer side of the cylinder (1) is provided with a heat insulation layer (2). The cylinder (1) includes a hollow cavity (11). The hollow cavity (11) is provided with a heat insulation component (3) and a partition (14). The heat insulation component (3) includes a cooling component (31) and a heating component (32). The cooling component (31) and the heating component (32) are both configured as a spiral structure and are arranged alternately. A temperature controller (8) and a contactor assembly (9) are provided on the outer side of the cylinder (1), and the temperature controller (8), the contactor assembly (9) and the heating component (32) are electrically connected.

2. The heat insulation device for heat treatment of pressure vessels according to claim 1, characterized in that: The cooling assembly (31) includes a cooling water pipe (311), and both ends of the cooling water pipe (311) are provided with connection ports (312). The connection port (312) at one end of the cooling water pipe (311) is connected to the liquid inlet pipe (4).

3. A heat insulation device for heat treatment of pressure vessels according to claim 2, characterized in that: The other end of the cooling water pipe (311) is connected to the outlet pipe (6) via a connector (312).

4. A heat insulation device for heat treatment of a pressure vessel according to claim 3, characterized in that: The heating assembly (32) includes an electric heating tube (321), and power connectors (322) are provided at both ends of the electric heating tube (321).

5. A heat insulation device for heat treatment of a pressure vessel according to claim 4, characterized in that: The partition (14) is provided with a spiral groove structure, and the cooling water pipe (311) and the electric heating pipe (321) are both located within the spiral groove structure.

6. A heat insulation device for heat treatment of pressure vessels according to claim 1, characterized in that: The upper end of the hollow cavity (11) is provided with a first sealing plate (12), and the lower end of the hollow cavity (11) is provided with a second sealing plate (13).

7. A heat insulation device for heat treatment of a pressure vessel according to claim 6, characterized in that: The first sealing plate (12) is fixedly connected to the cylinder (1) by a slot, and the second sealing plate (13) is fixedly connected to the cylinder (1) by a slot.

8. A heat insulation device for heat treatment of a pressure vessel according to claim 2, characterized in that: A first valve (5) is installed on the inlet pipe (4).

9. A heat insulation device for heat treatment of a pressure vessel according to claim 3, characterized in that: A second valve (7) is installed on the liquid outlet pipe (6).

Images