CN216813754U

CN216813754U - Tail end ventilation device for release pipeline of safety valve of LNG tank

Info

Publication number: CN216813754U
Application number: CN202122939145.6U
Authority: CN
Inventors: 王彧; 高振宇
Original assignee: Cosco Shipping Heavy Industry Dalian Co Ltd
Current assignee: Cosco Shipping Heavy Industry Dalian Co Ltd
Priority date: 2021-11-28
Filing date: 2021-11-28
Publication date: 2022-06-24
Anticipated expiration: 2031-11-28

Abstract

The utility model discloses a tail end ventilation device for a release pipeline of a safety valve of an LNG (liquefied natural gas) tank, which comprises a rain cap (1), a body (2), a toggle plate (3), a funnel (4), a discharge water pipe (5) and a discharge nozzle (6), wherein the rain cap (1) is arranged on the body (2), the toggle plate (3) is arranged in the body (2), the funnel (4) is fixedly connected with the toggle plate (3), the discharge water pipe (5) is fixed below the funnel (4), a discharge opening of the discharge water pipe (5) extends out of the outer side of the body (2), and the discharge nozzle (6) is fixed on the body (2). The tail end ventilating device for the release pipeline of the LNG tank safety valve is simple in structure, has fireproof and rainproof functions, and can effectively and safely exhaust gas to the atmosphere.

Description

Tail end ventilation device for release pipeline of safety valve of LNG tank

Technical Field

The utility model relates to a tail end ventilation device for a release pipeline of a safety valve of an LNG tank.

Background

In recent years, with the change of the development mode of clean energy, the LNG trade has become the focus of the world oil and gas industry, the ship construction of LNG carriers and LNG gas supply systems is increasing, in order to ensure the safety of an LNG tank installed on a ship, the LNG tank is provided with a safety valve, when the pressure in a cabin exceeds the set pressure of the safety valve, low-temperature BOG in the cabin needs to be quickly released through the safety valve when the BOG generated by the LNG tank is not consumed in time and the pressure in the cabin exceeds the set pressure of the safety valve, the released BOG is safely discharged from a safety valve release pipeline, and a ventilation device arranged at the tail end of the release pipeline needs to be designed scientifically and reasonably.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tail end ventilation device for a release pipeline of a safety valve of an LNG tank.

The technical scheme adopted by the utility model for realizing the purpose is as follows: the utility model provides a terminal ventilative device of LNG fluid reservoir relief valve release pipeline, includes rain-proof cap (1), body (2), bracket (3), funnel (4), the water pipe (5) of releasing and the mouth of releasing (6), install on body (2) rain-proof cap (1), install in body (2) bracket (3), funnel (4) and bracket (3) fixed connection, the water pipe of releasing (5) are fixed in funnel (4) below, and the outlet of the water pipe of releasing (5) stretches out the body (2) outside, the mouth of releasing (6) are fixed on body (2).

Rain-proof cap (1) is installed on body (2) through four backup pads.

The number of the toggle plates (3) is 4.

A check ring (7) is installed in the body (2).

The lower part of the body (2) is provided with a connecting sleeve (8).

4 pieces of fireproof nets are arranged on the funnel (4).

The tail end ventilating device for the release pipeline of the safety valve of the LNG tank is simple in structure, has fireproof and rainproof functions, and can effectively and safely exhaust gas to the atmosphere.

Drawings

Fig. 1 is a schematic structural diagram of a vent device at the tail end of a release pipeline of a safety valve of an LNG tank.

Fig. 2 is a view from B-B of fig. 1.

In the figure: 1. Rain-proof caps; 2. a body; 3. a toggle plate; 4. a funnel; 5. a water discharge pipe; 6. a bleed nozzle; 7. a retainer ring; 8. connecting a sleeve; 9. provided is a fireproof net.

Detailed Description

As shown in fig. 1 and 2, the vent device at the end of the release pipeline of the safety valve of the LNG tank comprises a rain-proof cap 1, a body 2, a toggle plate 3, a funnel 4, a water discharge pipe 5, a water discharge nozzle 6, a retainer ring 7, a connecting sleeve 8 and a fireproof net 9, wherein the rain-proof cap 1 is installed on the body 2 through four support plates, the toggle plate 3 is installed in the body 2, the funnel 4 is fixedly connected with the toggle plate 3, the water discharge pipe 5 is fixed below the funnel 4, a water discharge opening of the water discharge pipe 5 extends out of the body 2 for effective water discharge, the water discharge nozzle 6 is fixed on the body 2, the retainer ring 7 is fixedly installed in the body 2, the connecting sleeve 8 is installed at the lower part of the

body

2, 4 pieces of the fireproof net 9 are fastened on the funnel 4 by self-tapping screws to satisfy the fireproof function, the vent device at the end of the release pipeline of the LNG tank safety valve is vertically installed to weld the connecting sleeve 8 with the release pipeline of the LNG safety valve, the terminal ventilative device mounting height of LNG fluid reservoir relief valve release pipeline is more than 10 meters apart from boats and ships owner deck, be not less than 15 meters apart from boats and ships building antetheca, when the LNG fluid reservoir relief valve is opened, ventilative device is effectively with the gaseous atmosphere of LNG, the terminal ventilative device of LNG fluid reservoir relief valve release pipeline, when exhausting, can effectively observe the gas after the release on ventilative device, because the difference in temperature changes around the release in ventilative device, the liquefied liquid of production will effectively be discharged outside the pipe, avoid the backward flow to strike the relief valve, the terminal ventilative device of LNG fluid reservoir relief valve release pipeline possesses the fire prevention function, the terminal rain-proof cap of configuration of LNG fluid reservoir relief valve release pipeline, ventilative device possesses the rain-proof function.

Claims

1. The utility model provides a terminal ventilative device of LNG fluid reservoir relief valve release line which characterized in that: including rain-proof cap (1), body (2), bracket (3), funnel (4), discharge water pipe (5) and mouth (6) of bleeding, install on body (2) rain-proof cap (1), install in body (2) bracket (3), funnel (4) and bracket (3) fixed connection, the water pipe (5) of bleeding is fixed in funnel (4) below, and the outlet of the water pipe (5) of bleeding stretches out the body (2) outside, mouth (6) of bleeding are fixed on body (2).

2. The vent valve release line end venting device for an LNG tank of claim 1, further comprising: rain-proof cap (1) is installed on body (2) through four backup pads.

3. The vent valve release line end venting device for an LNG tank of claim 1, further comprising: the number of the toggle plates (3) is 4.

4. The vent valve release line end venting device for an LNG tank of claim 1, further comprising: a check ring (7) is installed in the body (2).

5. The vent valve release line end venting device for an LNG tank of claim 1, further comprising: the lower part of the body (2) is provided with a connecting sleeve (8).

6. The vent valve release line end venting device for an LNG tank of claim 1, further comprising: 4 fireproof nets are arranged on the funnel (4).