Safety relief device for self-resetting top cover of gasifier

Abstract

The utility model discloses a safety relief device for a self-resetting top cover of a gasifier, which is arranged on a relief port of the gasifier and comprises a cover plate (1), a pin shaft (2) and a relief pipe (3) detachably connected with the relief port of the gasifier, and the cover plate (1) is matched with a pipe orifice of the relief pipe (3); a first hinge seat (4) is arranged on the outer side wall of the discharge pipe (3); a second hinge seat (6) is arranged on the side part of the cover plate (1), and the second hinge seat (6) is rotationally connected with the first hinge seat (4) through a pin shaft (2); a limiting block (7) corresponding to the edge of the cover plate (1) is arranged on the outer side of the first hinge seat (4), and a movable gap (8) is formed between the limiting block (7) and the edge of the cover plate (1); the cover plate can be automatically reset after discharging is completed, the discharging pipe and the cover plate can be replaced according to the discharging area and the discharging pressure, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the field of gasifiers, in particular to a self-resetting top cover safety release device for a gasifier. Background Art

[0002] A water bath vaporizer is a device that vaporizes cryogenic liquid gas into gaseous gas by exchanging heat between hot water and cryogenic liquid gas. Applicable media include liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide, liquefied petroleum gas, liquefied natural gas, etc. When the vaporizer is working, the outer cylinder is at normal pressure, and the internal coil is a pressurized heat exchange tube. When the heat exchange tube leaks, the outer cylinder will be over-pressurized if it is not released, which poses a safety hazard. A safety relief device needs to be installed. After the relief cover is automatically opened, the traditional relief device completely turns outward and cannot be automatically reset. Workers need to climb onto the top cover to manually close it, which is not only troublesome to operate but also poses a safety hazard. At the same time, due to the fixed structure of the relief device, it is difficult to replace and adjust, and the relief needs that can be met are limited. Utility Model Content

[0003] The purpose of the utility model is to provide a gasifier self-resetting top cover safety discharge device. The cover plate of the utility model can automatically reset after the discharge is completed, and the discharge pipe and the cover plate can be replaced according to the discharge area and the discharge pressure, which has good practicality.

[0004] The technical solution of the utility model is as follows: a self-resetting top cover safety discharge device for a gasifier is arranged on a discharge port of the gasifier, comprising a cover plate, a pin shaft and a discharge pipe detachably connected to the discharge port of the gasifier, the cover plate is adapted to the pipe mouth of the discharge pipe; a first hinge seat is arranged on the outer wall of the discharge pipe; a second hinge seat is arranged on the side of the cover plate, and the second hinge seat is rotatably connected to the first hinge seat via the pin shaft; a limit block corresponding to the edge of the cover plate is arranged on the outer side of the first hinge seat, and a movable gap is provided between the limit block and the edge of the cover plate; the lateral distance between the pin shaft and the limit block is smaller than the longitudinal distance between the pin shaft and the top surface of the cover plate.

[0005] In the above-mentioned gasifier self-resetting top cover safety release device, two first hinged seats are provided and are symmetrically arranged, and the second hinged seat is arranged between the two first hinged seats.

[0006] In the aforementioned gasifier self-resetting top cover safety release device, two second hinged seats are provided, and the two second hinged seats are respectively fitted with the first hinged seats on the corresponding sides.

[0007] In the aforementioned gasifier self-resetting top cover safety release device, a limit cap is provided at one end of the pin shaft, and the length of the pin shaft is greater than the distance between the two first hinge seats.

[0008] In the aforementioned gasifier self-resetting top cover safety discharge device, the limit block is an L-shaped block, and the upper end of the limit block protrudes from the upper end surface of the discharge pipe.

[0009] In the aforementioned gasifier self-resetting top cover safety release device, the cover plate is provided with an extension plate, and the second hinged seat is arranged on the bottom surface of the extension plate.

[0010] In the aforementioned gasifier self-resetting top cover safety release device, there is a gap between the pin shaft and the bottom surface of the extension plate.

[0011] Compared with the prior art, the utility model responds to different discharge area requirements by installing a discharge pipe of corresponding diameter according to the process requirements of the gasifier, and responds to different discharge pressure requirements by installing a cover plate of corresponding mass. The discharge pipe is detachably connected to the discharge port of the gasifier outer cylinder, and the first hinge seat is aligned with the second hinge seat and the pin is inserted to realize the connection of the cover plate. When the gasifier is discharged, the pressure will push the cover plate to rotate around the pin shaft. After rotating a certain angle, the edge of the cover plate contacts the limit block. Since the lateral distance between the pin shaft and the limit block is less than the longitudinal distance between the pin shaft and the top surface of the cover plate, the rotation angle is less than 90°, and the cover plate will not be completely turned outward. When the discharge is completed and the internal pressure becomes smaller, it is insufficient to support the cover plate. The cover plate that is not completely turned outward is re-covered on the discharge pipe port by its own weight rotation, so as to realize automatic reset. The cover plate of the utility model can be automatically reset after the discharge is completed, and the discharge pipe and the cover plate can be replaced according to the discharge area and the discharge pressure, so it has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 It is a partial structural schematic diagram of the utility model.

[0015] The markings in the attached drawings are: 1-cover plate; 2-pressure reducing pipe; 3-discharge pipe; 4-first hinge seat; 5-extension plate; 6-second hinge seat; 7-limiting block; 8-movable gap; 9-limiting cap. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0017] Embodiment: A gasifier self-resetting top cover safety release device is arranged on the gasifier release port, as shown in the attached Figure 1 and attached Figure 2As shown, it includes a cover plate 1, a pin shaft 2 and a discharge pipe 3 detachably connected to the discharge port of the gasifier. The discharge pipe is connected with a corresponding flange or thread according to the discharge port of the gasifier. The cover plate 1 is adapted to the pipe mouth of the discharge pipe 3. The pin shaft is a pin shaft with a smooth surface to reduce the friction resistance after connection; a first hinge seat 4 is welded on the outer wall of the end of the discharge pipe 3; an extension plate 5 is integrally formed on the side of the cover plate 1, and a second hinge seat 6 is welded on the bottom of the extension plate 5. The second hinge seat 6 is rotatably connected to the first hinge seat 4 through the pin shaft 2, and is connected to the first hinge seat through the extension plate and the second hinge seat set downward, so that the rotation center of the cover plate is located below the side thereof, and the cover plate can quickly leave the pipe mouth of the pressure relief pipe when rotating to achieve rapid discharge; a limit block 7 corresponding to the edge of the cover plate 1 on the side where the second hinge seat 6 is located is integrally formed on the outer side of the first hinge seat 4, and there is a movable gap 8 between the limit block 7 and the edge of the cover plate 1, and the cover plate is limited by the limit block after moving a small angle; as shown in the attached Figure 3 As shown, the lateral distance a between the pin shaft 2 and the limit block 7 is smaller than the longitudinal distance b between the pin shaft 2 and the top surface of the cover plate 1; there are two first hinge seats 4 and they are symmetrically arranged, and the second hinge seat 6 is assembled between the two first hinge seats 4, and multi-point positioning improves the limit reliability of the pin shaft after setting; there are two second hinge seats 6, and the two second hinge seats 6 are respectively fitted with the first hinge seats 4 on the corresponding sides to form a lateral limit, thereby improving the reliability of the cover plate after connection; a limit cap 9 is integrally formed at one end of the pin shaft 2 to improve the quickness of installation, and the length of the pin shaft 2 is greater than the spacing between the two first hinge seats 4, which effectively avoids separation; the limit block 7 is an L-shaped block, and the upper end of the limit block 7 protrudes from the upper end surface of the discharge pipe 3, so that the outer edge of the cover plate can contact the limit block more quickly, ensuring that its maximum rotation angle is less than 90°; there is a gap between the pin shaft 2 and the bottom surface of the extension plate 5, so that the rotation center of the cover plate is further moved downward.

[0018] Working principle: According to the process requirements of the gasifier, the discharge pipe 3 of the corresponding diameter is installed to meet the different discharge area requirements, and the cover plate 1 of the corresponding mass is installed to meet the different discharge pressure requirements. The discharge pipe 3 is detachably connected to the discharge port of the gasifier outer tube. The first hinge seat 4 is aligned with the second hinge seat 6 and the pin shaft 2 is inserted to realize the connection of the cover plate; when the gasifier is discharged, the pressure will push the cover plate 1 to rotate around the pin shaft 2. After rotating a certain angle, the edge of the cover plate 1 contacts the limit block 7. The lateral distance between the shaft 2 and the limit block 7 is smaller than the longitudinal distance between the pin shaft 2 and the top surface of the cover plate 1, and the rotation angle is less than 90°. The cover plate 1 will not be completely turned outward. When the discharge is completed and the internal pressure becomes smaller, it is insufficient to support the cover plate 1. The cover plate 1 that is not completely turned outward rotates by its own weight and covers the pipe opening of the discharge pipe 3 again, thereby realizing automatic reset. The cover plate 1 of the utility model can be automatically reset after the discharge is completed, and the discharge pipe 3 and the cover plate 1 can be replaced according to the discharge area and the discharge pressure, which has good practicality.

[0019] The above embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. In this embodiment, up, down, left, right, front, and back only represent their relative positions and do not represent their absolute positions. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A gasifier self-resetting top cover safety release device, arranged on the gasifier release port, characterized in that: The invention comprises a cover plate (1), a pin shaft (2) and a discharge pipe (3) detachably connected to a discharge port of a gasifier, wherein the cover plate (1) is matched with the pipe port of the discharge pipe (3); a first hinge seat (4) is provided on the outer wall of the discharge pipe (3); a second hinge seat (6) is provided on the side of the cover plate (1), and the second hinge seat (6) is rotatably connected to the first hinge seat (4) via the pin shaft (2); a limit block (7) corresponding to the edge of the cover plate (1) is provided on the outer side of the first hinge seat (4), and a movable gap (8) is provided between the limit block (7) and the edge of the cover plate (1); and a lateral distance between the pin shaft (2) and the limit block (7) is smaller than a longitudinal distance between the pin shaft (2) and the top surface of the cover plate (1).

2. The gasifier self-resetting top cover safety release device according to claim 1, characterized in that: The first hinged seats (4) are provided with two and are symmetrically arranged, and the second hinged seat (6) is arranged between the two first hinged seats (4).

3. The gasifier self-resetting top cover safety release device according to claim 2, characterized in that: Two second hinged seats (6) are provided, and the two second hinged seats (6) are respectively fitted with the first hinged seats (4) on the corresponding sides.

4. The gasifier self-resetting top cover safety release device according to claim 1, characterized in that: A limiting cap (9) is provided at one end of the pin shaft (2), and the length of the pin shaft (2) is greater than the distance between the two first hinge seats (4).

5. The gasifier self-resetting top cover safety release device according to claim 1, characterized in that: The limiting block (7) is an L-shaped block, and the upper end of the limiting block (7) protrudes from the upper end surface of the discharge pipe (3).

6. The gasifier self-resetting top cover safety release device according to claim 1, characterized in that: The cover plate (1) is provided with an extension plate (5), and the second hinge seat (6) is arranged on the bottom surface of the extension plate (5).

7. The gasifier self-resetting top cover safety release device according to claim 6, characterized in that: There is a gap between the pin shaft (2) and the bottom surface of the extension plate (5).

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