Double-layer steam crosslinking device

Abstract

The utility model belongs to the technical field of cable production, and particularly relates to a double-layer steam crosslinking device. Comprising an inner wall and an outer wall, an annular steam pipe is arranged between the inner wall and the outer wall, and the steam pipe is connected with an external steam inlet pipe. A first steam outlet is formed in the steam pipe, a second steam outlet consistent with the first steam outlet is formed in the inner wall of the steam pipe, a pressure relief and liquid outlet is formed in the bottom of the steam crosslinking room, and a temperature and pressure measuring hole is formed in the front side wall of the steam crosslinking room; and the heating uniformity of the product during crosslinking can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable production, in particular to a double-layer steam cross-linking device. Background Art

[0002] Steam crosslinking is a process that uses heat and pressure to make the functional groups in the polymer molecular chain, such as double bonds and hydroxyl groups, react with the corresponding functional groups in the surrounding molecular chains to form a crosslinked polymer material. The three-dimensional network structure formed by this crosslinking can significantly improve the performance of the polymer, such as tensile strength, temperature resistance, wear resistance, etc.

[0003] In the patent application with the publication number CN 217035253 U, a steam cross-linking device for wires and cables is disclosed, which relates to the field of cross-linked cables. The utility model includes a steam cross-linking room, a water tank is installed on one side of the top of the steam cross-linking room, a steam generator is installed on one side of the water tank, a three-way pipe is installed on the bottom of the steam generator, a reflux component is arranged at the bottom of the steam cross-linking room, a spiral component is arranged in the middle of the steam cross-linking room, and guide plates are installed at the four corners of the inner wall of the steam cross-linking room. The utility model is provided with a spiral component, when placing the wires and cables, the user can wind the wires and cables on the placement cylinder along multiple winding rods, and then during the steam cross-linking process, the steam can flow in the middle of the placement cylinder and be emitted through the mesh to contact the wires and cables, so that the wires and cables are in more comprehensive contact with the steam, avoiding the situation where the placement method of the wires and cables affects the steam cross-linking efficiency.

[0004] However, the prior art all uses a single-layer structure, and generally steam enters from the top, resulting in poor steam uniformity. Therefore, the present application proposes a double-layer steam cross-linking device. Utility Model Content

[0005] The utility model aims to provide a double-layer steam cross-linking device, which can increase the heating uniformity of the product during cross-linking.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A double-layer steam cross-linking device includes a steam cross-linking room, which is a hollow cavity with an opening at the top. A drawer door is provided at the top opening, a cable placement plate is provided at the lower part of the hollow cavity, and a mesh is provided on the cable placement plate. The side wall of the hollow cavity includes an inner wall and an outer wall, and an annular steam pipe is provided between the inner wall and the outer wall. The steam pipe is connected to an external steam inlet pipe, a first steam outlet is provided on the steam pipe, a second steam outlet consistent with the first steam outlet is provided on the inner wall, and a pressure relief and liquid outlet are provided at the bottom of the steam cross-linking room, and a temperature and pressure measuring hole is provided on the front side wall.

[0008] Furthermore, the inner wall and the outer wall are both made of stainless steel.

[0009] Furthermore, an annular gas blowing pipe is provided between the inner wall and the outer wall, the gas blowing pipe is connected to the external gas inlet pipe, a first gas outlet is provided on the gas blowing pipe, and a second gas outlet consistent with the first gas outlet is provided on the inner wall.

[0010] Furthermore, a plurality of annular steam pipes and annular gas blowing pipes are provided, and the plurality of annular steam pipes and annular gas blowing pipes are arranged at equal distances between the inner wall and the outer wall.

[0011] Furthermore, a pressure sensor is arranged in the cavity of the steam cross-linking room, a numerical control valve is arranged on the steam inlet pipe, and both the pressure sensor and the numerical control valve are connected to an external controller.

[0012] Furthermore, a heat-insulating cotton layer is arranged on the outer wall.

[0013] Furthermore, a sealing strip is provided at the connection between the drawer door and the steam cross-linking room.

[0014] Compared with the prior art, the utility model has at least one of the following beneficial effects:

[0015] The utility model is provided with an inner wall and an outer wall, and an annular steam pipe is provided between the inner wall and the outer wall. When the wires and cables are cross-linked, steam is sprayed into the interior through the annular steam pipe, which can improve the heating uniformity of the product. In addition, an inner layer structure and an outer layer structure are provided, which has good thermal insulation performance.

[0016] An annular gas blowing pipe is arranged between the inner wall and the outer wall. The gas blowing pipe is connected to the external gas inlet pipe. A first gas outlet is opened on the gas blowing pipe, and a second gas outlet consistent with the first gas outlet is opened on the inner wall. When in use, air can be blown into the interior to increase the flow of internal steam and thereby increase uniformity.

[0017] A pressure sensor is provided in the cavity of the steam cross-linking room, and a CNC valve is provided on the steam inlet pipe. Both the pressure sensor and the CNC valve are connected to an external controller. During the cross-linking process, if the pressure sensor detects that the internal pressure exceeds the set value, the signal is transmitted to the controller, and the controller prompts the CNC valve to close, thereby reducing the amount of steam entering and reducing the internal pressure.

[0018] A thermal insulation cotton layer is arranged on the outer wall, which has a good thermal insulation effect.

[0019] A sealing strip is provided at the connection between the drawer door and the steam cross-linking room, which has good sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of the external structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal steam pipe and gas blowing pipe structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the inner wall and outer wall structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the steam cross-linking room of the utility model.

[0024] In the figure, 1-steam cross-linking room; 2-cable placement plate; 3-inner wall; 4-outer wall; 5-annular steam pipe; 6-steam inlet pipe; 7-first steam outlet; 8-pressure relief and liquid outlet; 9-temperature and pressure measuring hole; 10-annular gas blowing pipe; 11-gas inlet pipe; 12-first gas outlet. DETAILED DESCRIPTION

[0025] like Figure 1-4 In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Example

[0026] A double-layer steam cross-linking device comprises a steam cross-linking room 1, which is a hollow cavity with an opening at the top. A drawer door is provided at the top opening, a cable placement plate 2 is provided at the lower part of the hollow cavity, and a mesh is provided on the cable placement plate 2. The side wall of the hollow cavity comprises an inner wall 3 and an outer wall 4, an annular steam pipe 5 is provided between the inner wall 3 and the outer wall 4, the steam pipe 5 is connected to an external steam inlet pipe 6, a first steam outlet 7 is provided on the steam pipe 5, a second steam outlet consistent with the first steam outlet 7 is provided on the inner wall, and a pressure relief and liquid outlet 8 is provided at the bottom of the steam cross-linking room 1, and a temperature and pressure measuring hole 9 is provided on the front side wall. When cross-linking the wires and cables, steam is sprayed into the interior through the annular steam pipe, which can improve the heating uniformity of the product, and an inner layer structure and an outer layer structure are provided, which have good thermal insulation performance.

[0027] More specifically, the inner wall 3 and the outer wall 4 are both made of stainless steel.

[0028] More specifically, an annular gas blowing pipe 10 is provided between the inner wall 3 and the outer wall 4. The gas blowing pipe 10 is connected to an external gas inlet pipe 11. A first gas outlet 12 is provided on the gas blowing pipe 10, and a second gas outlet consistent with the first gas outlet 12 is provided on the inner wall 3. When in use, air can be blown into the interior to increase the flow of internal steam, thereby increasing uniformity, and increasing the uniformity of steam and air intake.

[0029] More specifically, a plurality of annular steam pipes 5 and annular gas blowing pipes 10 are provided, and the plurality of annular steam pipes 5 and annular gas blowing pipes 10 are equidistantly arranged between the inner wall 3 and the outer wall 4. More specifically, a pressure sensor is arranged in the cavity of the steam cross-linking room 1, and a numerical control valve is arranged on the steam inlet pipe 6. The pressure sensor and the numerical control valve are both connected to an external controller. During the cross-linking process, if the pressure sensor detects that the internal pressure exceeds the set value, the signal is transmitted to the controller, and the controller prompts the numerical control valve to be closed, thereby reducing the amount of steam entering and reducing the internal pressure.

[0030] More specifically, a heat-insulating cotton layer is provided on the outer wall 4, which has a good heat-insulating effect.

[0031] More specifically, a sealing strip is provided at the connection between the drawer door and the steam cross-linking room 1, which has good sealing performance.

[0032] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. Double-layer steam cross-linking device, characterized in that: The invention comprises a steam cross-linking room (1), wherein the steam cross-linking room (1) is a hollow cavity with an opening at the top, a drawer door is arranged at the top opening, a cable placement plate (2) is arranged at the lower part of the hollow cavity, a mesh hole is arranged on the cable placement plate (2), a side wall of the hollow cavity comprises an inner wall (3) and an outer wall (4), an annular steam pipe (5) is arranged between the inner wall (3) and the outer wall (4), the steam pipe (5) is connected to an external steam inlet pipe (6), a first steam outlet (7) is arranged on the steam pipe (5), a second steam outlet consistent with the first steam outlet (7) is arranged on the inner wall, a pressure relief and liquid outlet (8) is arranged at the bottom of the steam cross-linking room (1), and a temperature and pressure measuring hole (9) is arranged on the front side wall.

2. The double-layer steam cross-linking device according to claim 1, characterized in that: The inner wall (3) and the outer wall (4) are both made of stainless steel.

3. The double-layer steam cross-linking device according to claim 1, characterized in that: An annular gas blowing pipe (10) is provided between the inner wall (3) and the outer wall (4), the gas blowing pipe (10) being connected to an external gas inlet pipe (11), a first gas outlet (12) being provided on the gas blowing pipe (10), and a second gas outlet which is consistent with the first gas outlet (12) being provided on the inner wall (3).

4. The double-layer steam cross-linking device according to claim 1 or 3, characterized in that: A plurality of annular steam pipes (5) and annular gas blowing pipes (10) are provided, and the plurality of annular steam pipes (5) and annular gas blowing pipes (10) are arranged at equal distances between the inner wall (3) and the outer wall (4).

5. The double-layer steam cross-linking device according to claim 1, characterized in that: A pressure sensor is arranged in the cavity of the steam cross-linking room (1), and a numerical control valve is arranged on the steam inlet pipe (6). Both the pressure sensor and the numerical control valve are connected to an external controller.

6. The double-layer steam cross-linking device according to claim 1, characterized in that: A heat-insulating cotton layer is provided on the outer wall (4).

7. The double-layer steam cross-linking device according to claim 1, characterized in that: A sealing strip is provided at the connection between the drawer door and the steam cross-linking room (1).

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