Double-layer plate type rigid self-sealing high-temperature heat source dissipation and propagation isolation device

Abstract

The invention discloses a double-layer plate type rigid self-sealing high-temperature heat source dissipation and propagation isolation device, and belongs to the technical field of industrial gate valves. The flat gate valve solves the problem of smoke leakage due to the fact that a large gap is reserved between a gate door and a door frame of an existing common flat gate valve. Comprising a shell, a door frame, a door cover, a Y-shaped guide groove, a heat preservation sealing structure and an isolation door. The shell is arranged in an external flue and is a rectangular frame, an opening is formed in the top face of the shell, the door cover detachably covers the opening in the top face of the shell, the door frame is embedded into the middle of the shell and is a rectangular frame, a Y-shaped guide groove is formed in the top end of the door frame, and heat preservation sealing structures are installed at the left end, the right end and the bottom end of the door frame. The Y-shaped guide groove is a vertical through groove, and a U-shaped groove is formed in the heat preservation sealing structure. The isolation door telescopically penetrates through the Y-shaped guide groove in the vertical direction and then is detachably clamped in the U-shaped groove of the heat preservation sealing structure. And the requirement of preventing high-temperature flue gas from dissipating is met. The device is used for isolating smoke.

Description

Technical Field

[0001] The invention relates to a double-layer plate type rigid self-sealing high-temperature heat source dissipation and propagation isolation device, belonging to the technical field of industrial plug-in valves. Background Art

[0002] Industrial gate valves are installed in flues to prevent smoke leakage and are used in the power generation industry and the chemical industry.

[0003] There are large differences in temperature and pressure in the flue under different operating conditions, and the existing ordinary flat gate valve generally leaves a large gap between the gate door and the door frame to ensure smooth movement of the gate door, which leads to widespread smoke leakage during the operation of the gate valve. If the smoke leakage is too large, an accident may occur. In addition, during long-term use, there will inevitably be wear between the gate door and the door frame, resulting in damage to the sealing structure of the gate valve and thus reducing the sealing of the flue.

[0004] In summary, the existing common flat plate gate valve has a large gap between the gate door and the door frame, resulting in smoke leakage. Summary of the invention

[0005] The present invention aims to solve the problem of smoke leakage caused by a large gap between the gate door and the door frame of the existing common flat gate valve, and further provides a double-layer plate type rigid self-sealing high-temperature heat source dissipation and propagation isolation device, which comprises a shell, a door frame, a door cover, a Y-shaped guide groove, a heat preservation sealing structure and an isolation door; the shell is arranged in an external flue, the shell is a rectangular frame, an opening is arranged on the top surface of the shell, the door cover can be detachably covered on the opening on the top surface of the shell, the door frame is embedded in the middle of the shell, the door frame is a rectangular frame, a Y-shaped guide groove is installed on the top of the door frame, and the left, right and bottom ends of the door frame are all installed with heat preservation sealing structures;

[0006] The Y-shaped guide groove is a vertical through groove, and a U-shaped groove is arranged inside the thermal insulation sealing structure; the isolation door can be telescopically extended through the Y-shaped guide groove in the vertical direction, and then can be detachably engaged in the U-shaped groove of the thermal insulation sealing structure.

[0007] As another improvement of the present invention, the isolation door includes a combined door beam and two groups of door panel blocks with the same structure. The two groups of door panel blocks are symmetrically installed through the combined door beam. The door panel blocks include a double-layer door panel and an insulation layer. The insulation layer is filled in the middle of the double-layer door panel.

[0008] As another improvement of the present invention, a limiting plate is welded to the outer surface of the double-layer door panel.

[0009] As another improvement of the present invention, a plurality of lifting ears are installed on the top of the composite door beam.

[0010] As another improvement of the present invention, the lifting ears are evenly installed in the horizontal direction, and the number of the lifting ears installed on the top of the composite door beam is 4 to 8.

[0011] As another improvement of the present invention, it also includes a lifting device, which is detachably connected to the top of the isolation door and is used for lifting and lowering the isolation door.

[0012] As another improvement of the present invention, the shell includes columns, a beam body and a rigid plate, and the rigid plate is surrounded by the columns and the beam body to form a rectangular frame.

[0013] As another improvement of the present invention, the door cover comprises a frame body and a cover body, the frame body is fixedly mounted on the top surface of the shell body, and the cover body is detachably and hermetically connected to the frame body.

[0014] Beneficial effects of the present invention:

[0015] 1. A Y-shaped guide groove is installed at the top of the door frame, and thermal insulation sealing structures are installed on the left, right and bottom of the door frame. The door frame adopts a Y-shaped guide groove and a thermal insulation sealing structure to assist the isolation door to accurately fall into place when closed, reducing the mechanical friction between the isolation door and the door frame and leaving almost no gap between the two, meeting the need to prevent high-temperature smoke from escaping.

[0016] 2. The door panel module design including double-layer door panels and insulation layers can enhance the high temperature resistance of the isolation door and can adapt to high temperature flue gas environment of 800℃. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of a double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device of the present invention.

[0018] Figure 2 It is a side structural schematic diagram of a double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device of the present invention.

[0019] Figure 3 is a schematic diagram of a Y-shaped guide groove.

[0020] Figure 4 It is a schematic diagram of the thermal insulation sealing structure. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the examples of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be explained that the positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are only based on the positional relationships of the orientations shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the referred components have specific orientations, are constructed and operated in specific orientations, and therefore cannot be understood as limitations on the present invention.

[0022] Specific implementation method 1: Combination Figures 1 to 4 The present embodiment is described. The present embodiment is a double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device, which comprises a shell 3, a door frame, a door cover 4, a Y-shaped guide groove 6, a heat-insulating sealing structure 7 and an isolation door 2; the shell 3 is arranged in an external flue, the shell 3 is a rectangular frame, an opening is arranged on the top surface of the shell 3, the door cover 4 can be detachably covered on the opening on the top surface of the shell 3, the door frame is embedded in the middle of the shell 3, the door frame is a rectangular frame, a Y-shaped guide groove 6 is installed on the top of the door frame, and the heat-insulating sealing structure 7 is installed on the left, right and bottom ends of the door frame;

[0023] The Y-shaped guide groove 6 is a vertical through groove, and a U-shaped groove is arranged inside the thermal insulation sealing structure 7; the isolation door 2 can be telescopically extended vertically through the Y-shaped guide groove 6, and then can be detachably engaged in the U-shaped groove of the thermal insulation sealing structure 7.

[0024] When it is necessary to isolate the flue gas in the flue, remove the door cover of the double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device, control the isolation door 2 to fall slowly, and the isolation door 2 passes through the Y-shaped guide groove 6 and accurately falls into the door frame of the shell 3. When the isolation door 2 is engaged with the thermal insulation sealing structure 7 at the bottom of the door frame, it stops falling, which can achieve the purpose of preventing smoke leakage. The door frame adopts a Y-shaped guide groove and a thermal insulation sealing structure to assist the isolation door to accurately fall into place when closing, reducing the mechanical friction between the isolation door and the door frame and leaving almost no gap between the two, meeting the need to prevent high-temperature smoke from escaping.

[0025] Specific implementation method 2: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the first embodiment is that the isolation door 2 includes a combined door beam 5 and two groups of door panel blocks with the same structure. The two groups of door panel blocks are symmetrically installed through the combined door beam 5. The door panel block includes a double-layer door panel and an insulation layer, and the insulation layer is filled in the middle of the double-layer door panel. The design of the door panel block including the double-layer door panel and the insulation layer enhances the high temperature resistance of the isolation door and can adapt to a high temperature flue gas environment of 800°C. Other components and connection methods are the same as those of the first embodiment.

[0026] Specific implementation method three: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the first embodiment is that a limit plate is welded on the outer surface of the double-layer door panel. The purpose of this design is to assist in the lifting and lowering of the isolation door 2 and improve the working efficiency of this embodiment. The other components and connection methods are the same as those of the first or second embodiment.

[0027] Specific implementation method four: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the first embodiment is that a plurality of lifting ears are installed on the top of the combined door beam 5. The purpose of such design is to assist in the lifting and lowering of the isolation door 2 and improve the working efficiency of this embodiment. The other components and connection methods are the same as those of the first, second or third embodiments.

[0028] Specific implementation method five: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that the lifting lugs are evenly installed in the horizontal direction, and the number of the lifting lugs installed on the top of the combined door beam 5 is 4 to 8. The number of the lifting lugs is adjusted and matched according to the length of the top of the combined door beam, and is used to assist in completing the lifting and lowering of the isolation door 2, thereby improving the working efficiency of this embodiment. The other components and connection methods are the same as any one of the specific embodiments 1 to 4.

[0029] Specific implementation method six: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that this embodiment further includes a lifting device 1, which is detachably connected to the top of the isolation door 2, and the lifting device 1 is used to lift the isolation door 2. The lifting device 1 is used to control the lifting of the isolation door 2, which is convenient and quick. The lifting device is connected to the isolation door through a lifting lug to complete the lifting action. The other components and connection methods are the same as any one of the specific embodiments 1 to 5.

[0030] Specific implementation method seven: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the first embodiment is that the housing 3 includes a column, a beam and a rigid plate, and the rigid plate is surrounded by the column and the beam to form a rectangular frame. Such a design structure is simple and reliable, and has strong stability. Other components and connection methods are the same as any one of the first to sixth embodiments.

[0031] Specific implementation method eight: Combination Figures 1 to 4 This embodiment is described. The difference between this embodiment and the first embodiment is that the door cover 4 includes a frame and a cover. The frame is fixedly mounted on the top surface of the housing 3, and the cover is detachably sealed and connected to the frame. Such a design structure is simple and reliable, and has strong stability. Other components and connection methods are the same as any one of the first to seventh embodiments.

[0032] Combination Figures 1 to 4 The working principle of the present invention is described:

[0033] When it is necessary to isolate the flue gas in the flue, remove the door cover of the double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device, control the isolation door 2 to slowly fall through the lifting device, and the isolation door 2 passes through the Y-shaped guide groove 6 and is accurately positioned in the door frame of the shell 3. When the isolation door 2 is engaged with the thermal insulation sealing structure 7 at the bottom of the door frame, it stops falling, thereby preventing smoke leakage.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device, characterized in that It comprises a shell (3), a door frame, a door cover (4), a Y-shaped guide groove (6), a heat-insulating sealing structure (7) and an isolation door (2); the shell (3) is arranged in an external flue, the shell (3) is a rectangular frame, an opening is arranged on the top surface of the shell (3), the door cover (4) is detachably covered on the opening on the top surface of the shell (3), the door frame is embedded in the middle of the shell (3), the door frame is a rectangular frame, a Y-shaped guide groove (6) is installed on the top of the door frame, and the heat-insulating sealing structure (7) is installed on the left, right and bottom ends of the door frame; The Y-shaped guide groove (6) is a vertical through groove, and a U-shaped groove is provided inside the thermal insulation sealing structure (7); the isolation door (2) can be telescopically extended vertically through the Y-shaped guide groove (6), and then can be detachably engaged in the U-shaped groove of the thermal insulation sealing structure (7).

2. A double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device according to claim 1, characterized in that: The isolation door (2) comprises a combined door beam (5) and two groups of door panel blocks with the same structure. The two groups of door panel blocks are symmetrically installed in opposite directions via the combined door beam (5). The door panel blocks comprise a double-layer door panel and a heat-insulating layer. The heat-insulating layer is filled in the middle of the double-layer door panel.

3. A double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device according to claim 2, characterized in that: A limit plate is welded on the outer surface of the double-layer door panel.

4. A double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device according to claim 2, characterized in that: A plurality of lifting ears are installed on the top of the combined door beam (5).

5. A double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device according to claim 4, characterized in that: The lifting ears are evenly installed in the horizontal direction, and the number of the lifting ears installed on the top of the combined door beam (5) is 4 to 8.

6. A double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device according to claim 1, characterized in that It also comprises a lifting device (1), which is detachably connected to the top of the isolation door (2), and is used for lifting and lowering the isolation door (2).

7. A double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device according to claim 1, characterized in that: The shell (3) comprises a column, a beam body and a rigid plate, and the rigid plate is surrounded by the column and the beam body to form a rectangular frame.

8. A double-layer plate-type rigid self-sealing high-temperature heat source dissipation and propagation isolation device according to claim 1, characterized in that: The door cover (4) comprises a frame body and a cover body, wherein the frame body is fixedly mounted on the top surface of the shell body (3), and the cover body is detachably sealedly connected to the frame body.

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