CN212131703U

CN212131703U - A rain-proof water conservancy diversion head of breathing freely for LNG pipeline

Info

Publication number: CN212131703U
Application number: CN202020299822.5U
Authority: CN
Inventors: 武彦峰
Original assignee: 武彦峰
Current assignee: Shengrui Shipbuilding Technology Engineering (Shanghai) Co.,Ltd.
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-12-11
Anticipated expiration: 2030-03-12

Abstract

The utility model relates to a rain-proof water conservancy diversion ventilation head for LNG pipeline belongs to LNG pipeline equipment technical field, including the water conservancy diversion shell, be equipped with the weather shield in the water conservancy diversion shell, the water conservancy diversion shell bottom is through the connecting pipe connected system permeability cell that the diameter is less, and the edge of weather shield passes through the link connection water conservancy diversion shell, and water conservancy diversion shell lower extreme is equipped with the outlet, and LNG in the permeability cell upwards flows out through connecting pipe and link, and the rainwater is let off through link and outlet by the weather shield, under the prerequisite that does not influence the permeability of permeability cell, has effectively avoided the risk that the rainwater flows into the permeability cell; in addition, the top of the flow guide shell is also provided with a fireproof net, so that external sparks or flames are prevented from entering the ventilation head; the bottom of the rain shield is provided with the air guide plate, the edge of the air guide plate is provided with a downward convex surrounding edge, LNG in the air guide pipe can be quickly ventilated under the action of flow guide, and meanwhile, the surrounding edge further ensures the rain shield effect of the rain shield.

Description

A rain-proof water conservancy diversion head of breathing freely for LNG pipeline

Technical Field

The utility model relates to a LNG pipeline equipment technical field, in particular to a rain-proof water conservancy diversion head of breathing freely for LNG pipeline.

Background

In the field of LNG and other hazardous gas applications, a gas permeable system is essential. The ventilation pipe needs to be discharged upwards as much as possible and cannot cause rainwater to enter. Most of the existing ventilation pipes are vertical and open upwards.

However, the existing structural design has many defects:

1. when the rain weather occurs, rainwater is easy to enter from the opening and is gathered in the ventilating pipe, and the rainwater can enter the system, so that exhaust blockage or other more serious problems can be caused;

2. if the temperature of the gas flowing in the pipe is low, accumulated water is easy to freeze, and the mouth of the gas-permeable pipe is blocked, so that gas permeability is not smooth, and the danger is brought to the safe operation of a main system;

3. if the open end is bent downwards, rainwater can be prevented from entering accumulated water, however, the discharged gas can be gathered below the ventilation part, and potential safety hazards can be caused to personnel moving below the ventilation part if the discharged gas is harmful or flammable and explosive dangerous gas.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a rain-proof water conservancy diversion head of breathing freely for LNG pipeline is provided with the weather shield, but through the connecting pipe high-speed joint system permeability cell of water conservancy diversion shell bottom, under the ventilative circumstances of not influencing LNG, has effectively avoided the danger that the rainwater gathering blockked up.

The technical scheme for realizing the purpose is as follows:

the utility model provides a rain-proof flow guide ventilating head for LNG pipelines, which comprises a cylindrical flow guide shell, wherein the flow guide shell is provided with a top end and a bottom end which are opposite, and the bottom end is connected with a connecting pipe with a diameter smaller than that of the flow guide shell and used for connecting a system ventilating pipe;

be equipped with the rain-proof device in the water conservancy diversion shell, the rain-proof device includes integrated into one piece's circular weather shield and link, the weather shield is located directly over the connecting pipe, just the area of coverage of weather shield is greater than the mouth of pipe area of connecting pipe prevents that the fluid such as rainwater at water conservancy diversion shell top from flowing into the connecting pipe, link evenly distributed in the edge of weather shield, the weather shield passes through the link is connected the water conservancy diversion shell, when effective rain-proof, the gas in the breathing tube is normally circulated by the gap of link and is ventilative.

Further, the top end is sealed with a fireproof net to prevent external sparks or flames from entering the ventilation head.

Further, the top of water conservancy diversion shell is equipped with the installation bedplate, the fire prevention net is installed on the installation bedplate, the fire prevention net gland is installed in the outside of fire prevention net for fixed fire prevention net prevents to receive external force or inside gaseous impact damage fire prevention net, effectively prolongs the life-span of receiving of fire prevention net.

Furthermore, the lower end of the flow guide shell is obliquely arranged and gradually shrinks from the position, close to the middle, of the flow guide shell to the bottom end;

the top of the connecting pipe is at a certain distance from the bottom end of the diversion shell, the diversion shell is provided with water drainage holes, and the water drainage holes are positioned between the top of the connecting pipe and the bottom end of the diversion shell, so that raw materials are saved, and rapid leakage of rainwater in the diversion shell is facilitated.

Furthermore, the water drainage hole is close to the connection part of the flow guide shell and the connecting pipe and used for avoiding excessive accumulated water in the flow guide shell.

Furthermore, the bottom of the rain baffle is provided with a funnel-shaped air guide plate which is positioned right above the ventilation pipe of the system and used for guiding the flow of gas in the connection pipe so as to facilitate the rapid outflow of the gas in the ventilation pipe.

Further, the edge of air guide plate is around being equipped with downward convex surrounding edge, the diameter of surrounding edge is greater than the mouth of pipe diameter of connecting pipe for prevent that the rainwater at weather shield top from flowing to the bottom of weather shield along the edge of weather shield, avoid in the rainwater inflow connecting pipe.

Has the advantages that: compared with the prior art, the utility model has the difference that the utility model provides a rain-proof water conservancy diversion ventilation head for LNG pipeline, including the water conservancy diversion shell, be equipped with the weather shield in the water conservancy diversion shell, the water conservancy diversion shell bottom is through the connecting pipe connection system permeability cell that the diameter is less, the edge of weather shield passes through the link connection water conservancy diversion shell, and the water conservancy diversion shell lower extreme is equipped with the outlet, and the LNG in the permeability cell flows out through connecting pipe and link upwards, and the rainwater is let off through link and outlet by the weather shield, under the prerequisite that does not influence the permeability of permeability cell, has effectively avoided the risk that the rainwater flows into the permeability cell; in addition, the top of the flow guide shell is also provided with a fireproof net, so that external sparks or flames are prevented from entering the ventilation head; the rain-proof guide air-permeable structure is simple in structure, convenient to manufacture, low in cost, good in rain-proof, fireproof and air-guiding effects, capable of being installed and used quickly and wide in applicability.

Drawings

Fig. 1 is a front view of a rain-proof diversion ventilation head for an LNG pipeline according to a preferred embodiment of the present application.

Fig. 2 is a front sectional view of a rain-proof diversion ventilation head for an LNG pipeline according to a preferred embodiment of the present application.

Fig. 3 is a top view of a rain-proof diversion ventilation head for an LNG pipeline according to a preferred embodiment of the present application.

Fig. 4 is a top view of a rain shield according to the present application.

The device comprises a ventilation pipe 10, a flow guide shell 1, a top end 11, a bottom end 12, a mounting seat plate 13, a water drainage hole 14, a connecting pipe 2, a rain shielding device 3, a rain shielding plate 31, a connecting frame 32, a fireproof net 4, a fireproof net gland 41, an air guide plate 5 and a surrounding edge 51.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 to 4, the present invention provides a rain-proof flow guiding ventilation head for an LNG pipeline, which includes a tubular flow guiding housing 1, wherein the flow guiding housing 1 has a top end 11 and a bottom end 12 opposite to each other, and the bottom end 12 is connected to a connecting pipe 2 having a diameter smaller than that of the flow guiding housing 1 for connecting a ventilation pipe 10 of a system;

the rain shielding device 3 is arranged in the flow guide shell 1 and comprises a rain shielding plate 31 and a connecting frame 32 which are integrally formed, wherein the rain shielding plate 31 is adaptive to the connecting pipe and is in a circular or polygonal rhombus shape, the rain shielding plate 31 is positioned right above the connecting pipe 2, the coverage area of the rain shielding plate 31 is larger than the pipe orifice area of the connecting pipe 2 so as to prevent rainwater at the top of the flow guide shell 1 from flowing into the connecting pipe 2, the connecting frame 32 is uniformly distributed on the edge of the rain shielding plate 31 and consists of six plate frames, the rain shielding plate 31 is connected with the flow guide shell 1 through the connecting frame 32, and gas in the vent pipe 10 can normally circulate and ventilate through the gap of the connecting frame 32 while being effectively rainproof.

As a preferred embodiment of the present invention, the top end 11 is sealed with a fireproof net 4, which has a function of keeping off rain and simultaneously has an effect of preventing external sparks or flames from entering the ventilation head.

Preferably, the top of water conservancy diversion shell 1 is equipped with installation bedplate 13, fire prevention net 4 is installed on the installation bedplate 13, fire prevention net gland 41 is installed in the outside of fire prevention net 4 for fixed fire prevention net 4 prevents to receive external force or inside gaseous impact damage fire prevention net 4, effectively prolongs the life who receives of fire prevention net 4, the life of extension ventilation head.

Preferably, the lower end of the guide shell 1 is obliquely arranged, and gradually shrinks from the middle of the guide shell 1 to the bottom end 12;

the top of the connecting pipe 2 has a certain distance with the bottom 12 of the diversion shell 1, the diversion shell 1 is distributed with water drainage holes 14, the water drainage holes 14 are positioned between the top of the connecting pipe 2 and the bottom 12 of the diversion shell 1, raw materials are saved by an inclined connection mode, and meanwhile rainwater in the diversion shell 1 can flow out quickly through the water drainage holes 14 along the inclined edge.

Preferably, the drainage hole 14 is close to the connection between the flow guide housing 1 and the connection pipe 2, so as to avoid excessive accumulated water staying in the flow guide housing 1.

As a preferred embodiment of the present invention, the bottom of the rain shield 31 is provided with a funnel-shaped air guide plate 5, the air guide plate 5 is located directly above the ventilation pipe 10 of the system for guiding the flow of the gas in the connection pipe 2, so as to facilitate the rapid outflow of the gas in the ventilation pipe 10.

Preferably, the edge of the air guide plate 5 is surrounded by a surrounding edge 51 protruding downwards, and the diameter of the surrounding edge 51 is larger than the diameter of the pipe orifice of the connecting pipe 2, so as to prevent the rainwater on the top of the rain shield 31 from flowing to the bottom of the rain shield 31 along the edge of the rain shield 31 and prevent the rainwater from flowing into the connecting pipe 2.

The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.

Claims

1. A rain-proof diversion ventilation head for an LNG pipeline is characterized by comprising a cylindrical diversion shell, wherein the diversion shell is provided with a top end and a bottom end which are opposite, and the bottom end is connected with a connecting pipe with the diameter smaller than that of the diversion shell and used for connecting a system ventilation pipe;

be equipped with rain-proof device in the water conservancy diversion shell, rain-proof device includes integrated into one piece's circular weather shield and link, weather shield is located directly over the connecting pipe, just weather shield's area of coverage is greater than the mouth of pipe area of connecting pipe, link evenly distributed in weather shield's edge, weather shield passes through the link is connected the water conservancy diversion shell.

2. A weather resistant, baffled, gas permeable head for an LNG pipeline according to claim 1, wherein the top end is sealed with a fire resistant mesh.

3. A rainproof, diversion and ventilation head for an LNG pipeline according to claim 2, wherein a mounting seat plate is provided on the top of said diversion housing, said fire-proof net is mounted on said mounting seat plate, and a fire-proof net gland is mounted on the outer side of said fire-proof net.

4. The weather-proof, flow-guiding and ventilating head for an LNG line as claimed in claim 1, wherein the lower end of the flow-guiding shell is inclined and gradually shrinks from the middle of the flow-guiding shell to the bottom end;

the top of the connecting pipe is at a certain distance from the bottom end of the flow guide shell, and water drainage holes are distributed in the flow guide shell and are located between the top of the connecting pipe and the bottom end of the flow guide shell.

5. The weather-proof, baffled, and breathable head for an LNG line of claim 4, wherein the bleed opening is proximate to a junction of the baffled housing and the connecting tube.

6. A rainproof, diversion and air-permeable head for LNG pipelines according to any one of claims 1 to 5, wherein the bottom of the rain shield is provided with a funnel-shaped air-guide plate, and the air-guide plate is positioned right above the ventilation pipe of the system.

7. The weather-proof, flow-guiding and air-permeable head for the LNG pipeline as claimed in claim 6, wherein the edge of the air-guide plate is surrounded by a downwardly protruding surrounding edge, and the diameter of the surrounding edge is larger than the diameter of the pipe opening of the connecting pipe.