CN111361873A - Ventilation and light transmission dual-purpose device for vertical cylindrical inner floating roof storage tank - Google Patents

Abstract

The invention discloses a dual-purpose device for ventilation and light transmission for a vertical cylindrical inner floating roof storage tank. The device is arranged at the edge of the tank top of the storage tank. The tank roof plate is provided with a rectangular opening, and the opening is reinforced by the tank top. The ring is reinforced, and a whole circle of water-retaining frame is connected to the edge of the opening, and a semi-cylindrical escutcheon is installed on the upper part of the opening; When the cylindrical escutcheon is closed, the rectangular hole enclosed by the tank top plate is shielded by an anti-bird net, and the anti-bird net is connected with the half-cylindrical escutcheon; between the half-barrel escutcheon and the tank top reinforcement ring A locking device is installed, and a handle is installed on the upper part of the half-barrel escutcheon. Compared with the independent arrangement scheme of the traditional tank top ventilation holes and light transmission holes, the invention realizes the integration of the storage tank ventilation and light transmission functions, can effectively reduce the number of openings on the storage tank, reduce material consumption, and has fewer operation and maintenance facilities. Improve the lighting effect and the ease of operation of the light-transmitting hole.

Description

Ventilation and light transmission dual-purpose device for vertical cylindrical inner floating roof storage tank

technical field

The invention relates to the field of storage and transportation of petrochemical products, in particular to a safety ventilation device for an inner floating roof storage tank.

Background technique

The tank top vent is set on the top edge of the inner floating roof storage tank for storing light oil products without sealing requirements or volatile chemical products. It is used to escape the oil vapor in the tank and prevent the oil vapor in the tank from reaching explosion The ultimate safety ventilation device, the traditional tank top ventilation hole is a bow-shaped structure, one end is welded to the opening of the tank top, and the other end is opened downward and is welded with a bird-proof wire mesh; as shown in Figure 5 and Figure 6, the traditional storage tank light transmission hole It is located on the top of the tank, generally a round hole with a diameter of 500-600mm, which is sealed with a flange and a flange cover. When lighting, it is necessary to remove all bolts, nuts and fasteners, and open the flange cover to achieve lighting. In order to realize the above two functions, a plurality of openings need to be arranged on the top of the storage tank, and a large number of fasteners need to be disassembled and assembled when the light-transmitting hole is switched on and off, which is inconvenient to operate.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a dual-purpose device for ventilation and light transmission for a vertical cylindrical inner floating roof storage tank, so as to solve the problem when the current independent storage tank tank top ventilation hole and storage tank tank top light transmission hole are used. There are many openings, many operation and maintenance facilities, and high material consumption, and the operation of the light-transmitting hole switch on the top of the tank is inconvenient.

In order to achieve the above purpose, the technical solution of the present invention includes the following content: a dual-purpose device for ventilation and light transmission for a vertical cylindrical inner floating roof storage tank, characterized in that the dual-purpose device for ventilation and light transmission is provided with At the edge of the outer tank top of the vertical cylindrical inner floating roof storage tank, the tank roof plate is provided with a rectangular opening. A half-cylindrical escutcheon is installed on the upper part; one side of the half-cylindrical escutcheon is connected with the tank top reinforcement ring through a connecting hinge, and the rectangular hole enclosed with the tank top plate when the cylindrical escutcheon is closed is protected from the tank top. The bird net is shielded, and the anti-bird net is connected with the half-barrel escutcheon; a locking device is installed between the half-barrel escutcheon and the tank top reinforcement ring, and a handle is installed on the upper part of the half-barrel escutcheon.

When the ventilating and light-transmitting device is used as a vent hole in the operating condition, the locking device is locked, the semi-cylindrical escutcheon is in a closed state, and the oil and gas in the storage tank pass through the opening of the tank top plate and the semi-cylindrical escutcheon in sequence. The pores and anti-bird nets spread to the atmosphere to prevent the oil and vapor in the storage tank from reaching the explosion limit.

During the installation and maintenance of the ventilating and light-transmitting dual-purpose device, the locking device is opened, and the semi-cylindrical escutcheon is pulled up by the handle to open it through the rotation of the connecting hinge, so that the upper part of the opening of the tank top is not affected. Blocking, the light enters the interior of the storage tank through the opening to realize lighting.

Compared with the prior art, the beneficial effects of the present invention are embodied as follows:

The invention can effectively reduce the number of openings on the storage tank, has many operation and maintenance facilities, reduces material consumption, and improves the lighting effect and the operation convenience of the light-transmitting holes.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the accompanying drawings used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the present invention. For some embodiments of the present invention, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creativity.

FIG. 1 is a schematic diagram of the present invention being used as a ventilation hole in a closed state.

FIG. 2 is a schematic diagram of the present invention being used as a light-transmitting hole in an open state.

FIG. 3 is a plan view of FIG. 1 .

FIG. 4 is a view taken along the line A of FIG. 1 .

Fig. 5 is the structure of the aforementioned conventional tank roof vent.

FIG. 6 is the structure of the light-transmitting hole in the tank top of the conventional storage tank.

In the attached drawings: 1—half-cylindrical escutcheon, 2—handle, 3—anti-bird net, 4—connecting hinge, 5—water blocking frame, 6—locking device, 7—tank top reinforcement ring, 8— hole.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figure 1, Figure 2, Figure 3, the vertical cylindrical inner floating roof storage tank of the present invention is used for ventilation and light transmission, including a half-cylindrical escutcheon 1, a handle 2, and a bird-proof net. 3. Connecting hinge 4, water retaining frame 5, locking device 6, tank top reinforcement ring 7.

The ventilating and light-transmitting dual-purpose device is arranged at the edge of the outer tank top of the vertical cylindrical inner floating roof storage tank, and the tank top plate is provided with a rectangular opening 8, and the opening is reinforced with a tank top reinforcement ring 7, and is opened at the opening. The edge of the hole is connected with a whole circle of water-retaining frame 5, and the upper part of the opening is installed with a semi-cylindrical escutcheon 1; When the cylindrical escutcheon 1 is closed, the rectangular hole enclosed by the tank top plate is shielded by the anti-bird net 3, and the anti-bird net 3 is connected with the half-cylindrical escutcheon 1; the half-barrel escutcheon 1 is reinforced with the top of the tank. A locking device 6 is installed between the rings 7 , and a handle 2 is installed on the upper part of the half-barrel escutcheon 1 .

As shown in Figure 1, when the ventilating and light-transmitting dual-purpose device is used as a vent hole under operating conditions, the locking device 6 is locked, the semi-cylindrical escutcheon 1 is in a closed state, and the oil and gas in the storage tank pass through the tank top plate in turn. The openings, the channels of the semi-cylindrical escutcheon 1, and the anti-bird net 3 diffuse into the atmosphere to prevent the oil vapor in the storage tank from reaching the explosion limit.

As shown in FIG. 2 , during installation and maintenance of the ventilating and light-transmitting device, the locking device 6 is opened, and the half-cylindrical escutcheon 1 is pulled up by the handle 2 so that it can be turned up by the rotation of the connecting hinge 4 Open it so that the upper part of the opening on the top of the tank is not blocked, and the light enters the interior of the storage tank through the opening to realize lighting.

Anti-bird net 3 should use 2 mesh or 3 mesh stainless steel wire mesh;

The locking device 6 adopts stainless steel quick-opening manhole locking bolts;

As shown in Figure 3, the outer edge of the opening of the device should be 600-800mm away from the tank wall; the edge of the tank top reinforcement ring 7 should be rounded, and the height of the tank top reinforcement ring 7 and the tank top plate welding leg should be greater than or equal to Thinner thickness;

As shown in Figure 4, the anti-bird net 3 shields the rectangular hole formed by the half-cylindrical escutcheon 1 and the tank top reinforcement ring 7, and the anti-bird net 3 is only connected with the three sides of the half-cylindrical escutcheon 1, and cannot be connected to the top of the tank. The reinforcement ring 7 is connected;

Determine the number of the devices according to the volume of the storage tank, and try to arrange them diagonally with the manhole on the tank wall.

The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention.

Claims (3)

1. A ventilation and light transmission dual-purpose device for a vertical cylindrical inner floating roof storage tank is characterized in that the ventilation and light transmission dual-purpose device is arranged at the top edge of an outer tank of the vertical cylindrical inner floating roof storage tank, a rectangular opening (8) is formed in a tank top plate, the opening is reinforced by a tank top reinforcing ring (7), a whole ring of water retaining frame (5) is connected to the edge of the opening, and a semi-cylindrical hole cover (1) is arranged at the upper part of the opening; one side of the semi-cylindrical hole cover (1) is connected with a tank top reinforcing ring (7) through a connecting hinge (4), a rectangular hole formed by the cylindrical hole cover (1) and a tank top plate when closed is shielded by an anti-bird net (3), and the anti-bird net (3) is connected with the semi-cylindrical hole cover (1); a locking device (6) is installed between the half-barrel-shaped hole cover (1) and the tank top reinforcing ring (7), and a handle (2) is installed on the upper portion of the half-barrel-shaped hole cover (1).

2. The dual-purpose device for ventilation and light transmission of the vertical cylindrical inner floating roof storage tank is characterized in that when the dual-purpose device for ventilation and light transmission is used as a ventilation hole in an operating condition, the locking device (6) is locked, the semi-cylindrical hole cover (1) is in a closed state, oil gas in the storage tank sequentially passes through the opening of the top plate of the storage tank, the hole channel of the semi-cylindrical hole cover (1) and the bird-proof net (3) to be diffused to the atmosphere, and the oil gas in the storage tank is prevented from reaching the explosion limit.

3. The ventilation and light transmission device for the vertical cylindrical inner floating roof storage tank as claimed in claim 1, wherein the ventilation and light transmission device is used for unlocking the locking device (6) during installation and maintenance, and the handle (2) is used for pulling up the semi-cylindrical hole cover (1) to be turned upwards and opened through rotation of the connecting hinge (4), so that the upper part of the opening of the tank top is not shielded, and light enters the storage tank through the opening to realize lighting.

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