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CN-224225250-U - Liquefied gas drip structure and liquefied gas carrier

CN224225250UCN 224225250 UCN224225250 UCN 224225250UCN-224225250-U

Abstract

The application relates to a liquefied gas drip structure and a liquefied gas carrier. The liquefied gas drip structure comprises a drip box body and a guide part, wherein the drip box body is provided with a containing cavity, the guide part is arranged in the drip box body and inclines towards the direction close to the bottom wall of the drip box body, a first communication hole is formed in the end part, close to the bottom wall of the drip box body, of the guide part, the containing cavity can be divided into a first cavity and a second cavity by the guide part, the first communication hole is communicated with the first cavity and the second cavity, the first cavity can be used for receiving dripped low-temperature liquid, and the guide part can enable the dripped liquid to enter the second cavity through the first communication hole. So, set up the guide part of slope in the drip box body, make liquefied gas drip structure form bilayer structure, through the guide of guide part with block the effect, prevent that low temperature liquid from taking place to splash and spilling over, the height of drip box body can reduce, and then reduces liquefied gas drip structure's overall height and volume, improves liquefied gas ship's space utilization.

Inventors

  • ZHOU CAIMIN
  • CHEN JIAGUI
  • HU QUNBO

Assignees

  • 上海惠生海洋工程有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (10)

  1. 1. A liquefied gas drip structure, comprising: A drip box body with a containing cavity and The guide part is arranged in the drip box body and inclines towards the direction close to the bottom wall of the drip box body, a first communication hole is formed in the end part, close to the bottom wall of the drip box body, of the guide part, the guide part can divide the accommodating cavity into a first cavity and a second cavity, and the first communication hole is communicated with the first cavity and the second cavity; The first cavity is capable of receiving the dropped cryogenic liquid, and the guide member is capable of allowing the dropped liquid to enter the second cavity through the first communication hole.
  2. 2. The liquefied gas leakage structure according to claim 1, wherein the guide member comprises a plurality of guide plates, each of the guide plates being disposed in the leakage box body obliquely toward a direction approaching the bottom wall of the leakage box body; The edges of the adjacent guide plates are connected and are surrounded to form the first communication holes, or the adjacent guide plates and the side wall of the drip box body are surrounded to form the first communication holes.
  3. 3. The liquefied gas drip structure of claim 1, further comprising a support member disposed in the second cavity and supported by the drip box and the guide member.
  4. 4. The liquefied gas drip structure as described in claim 3, wherein said support member includes a plurality of support plates disposed in said second cavity at intervals and supporting said drip box and said guide member; Each supporting plate divides the second cavity into accommodating cavities, each accommodating cavity is communicated, and at least one accommodating cavity is communicated with the first communication hole.
  5. 5. The liquefied gas drip structure according to claim 4, wherein one ends of the plurality of support plates are connected to the inner wall of the drip box body at intervals, the other ends of the plurality of support plates are connected with each other, each support plate is provided with at least one second communication hole which is arranged in a penetrating manner and is communicated with the adjacent accommodating cavity, or a preset gap exists between the adjacent support plates, so that the adjacent accommodating cavities are communicated; And/or, the support plate is provided with a concave part corresponding to the first communication hole, and the concave part is communicated with the first communication hole and the accommodating cavity.
  6. 6. The liquefied gas drip structure according to claim 1, wherein the drip box body comprises a supporting bottom plate and a plurality of supporting side plates, and the plurality of supporting side plates are sequentially connected to the peripheral side of the supporting bottom plate in a surrounding manner and form the accommodating cavity with the supporting bottom plate; The guide part is connected to the inner wall of the support side plate, and a preset gap exists between the guide part and one end of the support side plate, which is far away from the support bottom plate, so that the accommodating cavity is divided into a first cavity and a second cavity.
  7. 7. The liquefied gas leakage structure according to claim 6, wherein the thickness of the support bottom plate is 1.1 to 10 times the thickness of the support side plate.
  8. 8. The liquefied gas drip structure according to any one of claims 1 to 7, further comprising a heat conductive member provided to a hull of the liquefied gas carrier and protruding out of the hull, the drip box being provided on top of the heat conductive member; the heat conducting component is used for transferring heat of the ship body to the drip box body.
  9. 9. The liquefied gas drip structure according to claim 8, wherein the heat conducting member includes a first heat conducting member and a second heat conducting member, the first heat conducting member is disposed in the hull, the second heat conducting member is disposed above the hull and is disposed on the first heat conducting member, and the drip box is disposed on the second heat conducting member; And/or, the liquefied gas drip structure further comprises a heat insulation piece, wherein the heat insulation piece is arranged on the ship body and surrounds the periphery of the heat conduction component, and the heat insulation piece is used for preventing the heat conduction component from transferring heat to the ship body.
  10. 10. A liquefied gas carrier comprising a hull, a liquefied gas tank, and a liquefied gas drip structure according to any one of claims 1 to 9; the liquefied gas drip structure is arranged on the ship body, and the liquefied gas cabin is arranged on the ship body and above the liquefied gas drip structure.

Description

Liquefied gas drip structure and liquefied gas carrier Technical Field The application relates to the technical field of liquefied gas transportation, in particular to a liquefied gas drip structure and a liquefied gas ship. Background In recent years, there has been an increasing demand for low-temperature liquefied gas carriers, particularly, LNG carriers, large ethane carriers, VLEC and the like. In general, a type a or type B liquefied gas tank is mounted on a cryogenic liquefied gas carrier, and the liquefied gas tank can store cryogenic liquefied gas to realize transportation of the liquefied gas. Wherein, liquefied gas drip box (Drip Tray) is the special local secondary shielding device .IGC（The International Code For The Construction And Equipment Of Ships Carrying Liquefied Gases In Bulk, matched with the type-B liquefied gas tank of the IGC, and the international bulk liquefied gas ship construction and equipment rule) prescribes that when the type-B liquefied gas tank has crack leakage, the cryogenic liquid can be guided to a specified position and is received by a container arranged therein so as to prevent the cryogenic liquid from touching the ship body structure. And its storage volume should ensure 15 days of leakage from the liquefied gas compartment. At present, in the limited application of the type B liquefied gas cabin, the function of the drip tray is only limited to meeting the basic requirement of IGC, and is usually a non-cover structure made of stainless steel, a splash-proof baffle is arranged in the non-cover structure, and the bottom is isolated from the ship body by wood. However, conventional drip trays are relatively bulky and the depth of the drip tray must not be too shallow to prevent a heel overflow. The drip tray is typically isolated from the hull by wood for protection of the hull. This results in that the distance between the bilge of the type B liquefied gas and the double bottom of the hull must be enlarged, thereby reducing the utilization rate of the hull space. Disclosure of utility model Based on this, it is necessary to reduce the problem of the space utilization of the ship body against the increase in the structural size caused by the large volume of the conventional drip tray, and a liquefied gas drip structure and a liquefied gas ship are provided, which can guide and block the cryogenic liquid, prevent the cryogenic liquid from splashing, avoid the cryogenic liquid from overflowing, reduce the overall height and improve the space utilization of the liquefied gas ship. A liquefied gas drip structure comprising: A drip box body with a containing cavity and The guide part is arranged in the drip box body and inclines towards the direction close to the bottom wall of the drip box body, a first communication hole is formed in the end part, close to the bottom wall of the drip box body, of the guide part, the guide part can divide the accommodating cavity into a first cavity and a second cavity, and the first communication hole is communicated with the first cavity and the second cavity; The first cavity is capable of receiving the dropped cryogenic liquid, and the guide member is capable of allowing the dropped liquid to enter the second cavity through the first communication hole. In one embodiment of the present application, the guide member includes a plurality of guide plates, each of which is disposed in the drip box body obliquely toward a direction approaching the bottom wall of the drip box body; The edges of the adjacent guide plates are connected and are surrounded to form the first communication holes, or the adjacent guide plates and the side wall of the drip box body are surrounded to form the first communication holes. In an embodiment of the application, the liquefied gas drip structure further includes a support member, and the support member is disposed in the second cavity and supported by the drip box body and the guide member. In an embodiment of the present application, the supporting member includes a plurality of supporting plates, and the plurality of supporting plates are disposed in the second cavity at intervals and support the drip box body and the guiding member; Each supporting plate divides the second cavity into accommodating cavities, each accommodating cavity is communicated, and at least one accommodating cavity is communicated with the first communication hole. In one embodiment of the application, one ends of a plurality of support plates are connected to the inner wall of the dripping box body at intervals, the other ends of the plurality of support plates are connected with each other, each support plate is provided with at least one second communication hole which is arranged in a penetrating way and is communicated with the adjacent accommodating cavity, or a preset gap exists between the adjacent support plates, so that the adjacent accommodating cavities are communicated; And/or, the support plate is provided with a co