CN215722503U

CN215722503U - Liquefied natural gas vaporizer structure

Info

Publication number: CN215722503U
Application number: CN202122106839.1U
Authority: CN
Inventors: 郭灿灿; 陈少祥
Original assignee: Kelvion Heat Exchanger China Co Ltd
Current assignee: Kelvion Heat Exchanger China Co Ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-01
Anticipated expiration: 2031-09-02

Abstract

The utility model provides a liquefied natural gas vaporizer structure applied to the technical field of liquefied natural gas power systems, the liquefied natural gas vaporizer structure is simple in structure and low in cost, can conveniently and reliably increase strength support for a floating end of the vaporizer, improves rigidity of the tube bundle, ensures reliable use under marine and other vibration impact working conditions, and improves use reliability and service life of the vaporizer.

Description

Liquefied natural gas vaporizer structure

Technical Field

The utility model belongs to the technical field of liquefied natural gas power systems, and particularly relates to a liquefied natural gas vaporizer structure.

Background

In recent years, with the gradual implementation of energy-saving and environment-friendly policies of countries in the world, the environmental awareness of people is gradually strengthened, the call for protecting the water resource environment is gradually increased, and the technology of taking LNG (Liquefied Natural Gas) as engine fuel is matured, so that the development of the LNG ship power technology is positively and surely promoted. To using the LNG vaporizer that is boats and ships with the place of use, compare with the fixed operating mode of land equipment, marine operating mode bears the vibration, the impact condition is obvious, the one end of the vaporizer U type pipe of conventional structure is the floating end, can't play support fixed action to U type pipe like this, use under the operating mode that has the vibrations to strike in order to have on boats and ships, traditional condition can weld with the casing in a backup pad at last, it is careless slightly like this, easily cause the damage of heat exchange tube subassembly.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: aiming at the defects of the prior art, the liquefied natural gas vaporizer structure is simple in structure, low in cost, capable of conveniently and reliably increasing strength of the floating end of the vaporizer to support, improving the rigidity of a tube bundle, ensuring reliable use under marine and other vibration impact working conditions, improving the use reliability of the vaporizer and prolonging the service life of the vaporizer.

To solve the technical problems, the utility model adopts the technical scheme that:

the utility model relates to a liquefied natural gas vaporizer structure which comprises a tube bundle core group and a plurality of fixing plates, wherein the tube bundle core group is arranged in a shell, one end of the tube bundle core group is connected with a supporting tube plate, the fixing plates are provided with positioning grooves, each fixing plate is clamped between the inner wall of the shell and the edge of the supporting tube plate, and the positioning groove of each fixing plate is clamped at the edge of the supporting tube plate.

The fixed plate is a wedge-shaped plate, and when the fixed plate is clamped between the inner wall of the shell and the edge of the support tube plate, the fixed plate is welded with the shell.

The fixing plate comprises a wedge-shaped plate with a groove and a wedge-shaped plate without a groove.

A plurality of fixed plates of the liquefied natural gas vaporizer structure are arranged along the circumference of the inner wall of the shell in a clearance mode, and the end portion of each fixed plate is welded with the shell.

The tube bundle core group comprises cooling tubes, baffle plates and a supporting tube plate, and the supporting tube plate is connected with the inner wall of the shell in a welding mode.

And the supporting tube plate is welded with the shell.

The supporting tube plate is positioned at the end part of the tube bundle core group.

The tube bundle core group is a U-shaped tube bundle core group.

The fixing plate is made of metal materials.

By adopting the technical scheme of the utility model, the following beneficial effects can be obtained:

according to the liquefied natural gas vaporizer structure, the end, provided with the support tube plate, of the tube bundle core group is a floating end, in order to improve strength, a plurality of fixing plates are arranged at the position, each fixing plate is clamped between the inner wall of the shell and the support tube plate, the edge of the support tube plate is clamped in the positioning groove of the fixing plate, and then the fixing plates are welded with the shell, so that the limit of the support tube plate in the horizontal direction and the vertical direction is realized. Therefore, even if the carburetor is used in the occasions such as ships with the vibration amplitude, the damage caused by the overlarge vibration can be effectively prevented, and the service life is prolonged. The liquefied natural gas vaporizer structure is simple in structure and low in cost, can conveniently and reliably increase strength support for the floating end of the vaporizer, improves the rigidity of the tube bundle, ensures reliable use under the working conditions of ship and other vibration impact, improves the use reliability of the vaporizer and prolongs the service life of the vaporizer.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

FIG. 1 is a schematic front view of an LNG vaporizer configuration according to the present invention;

FIG. 2 is a schematic side view of an LNG vaporizer configuration according to the present invention;

fig. 3 is a schematic structural view of a fixing plate with a groove of the lng vaporizer structure according to the present invention;

in the drawings, the reference numbers are respectively: 1. the pipe bundle core group; 2. a fixing plate; 3. a housing; 4. supporting the tube plate; 5. a positioning groove; 6. an end portion; 7. a cooling tube; 8. and (7) a baffle plate.

Detailed Description

The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:

as shown in the attached drawings 1-3, the utility model relates to a liquefied natural gas vaporizer structure, which comprises a tube bundle core group 1 and a plurality of fixing plates 2, wherein the tube bundle core group 1 is arranged in a shell 3, one end of the tube bundle core group 1 is connected with a supporting tube plate 4, the fixing plates 2 are provided with positioning grooves 5, each fixing plate 2 is clamped between the inner wall of the shell 3 and the edge of the supporting tube plate 4, and the positioning groove 5 of each fixing plate 2 is clamped at the edge of the supporting tube plate 4. The structure provides an improved scheme based on a unique concept aiming at the defects in the prior art. Tube bank core group 1 sets up 4 one ends of support tube sheet and is for floating the end, for gaining in strength, sets up a plurality of fixed plates in this position, and every fixed plate clamps between shells inner wall and support tube sheet, and support tube sheet border clamps in the positioning groove of fixed plate, and then fixed plate and casing welding realize supporting the tube sheet spacing at horizontal direction and vertical direction. Therefore, even if the carburetor is used in the occasions such as ships with the vibration amplitude, the damage caused by the overlarge vibration can be effectively prevented, and the service life is prolonged. The liquefied natural gas vaporizer structure is simple in structure and low in cost, can conveniently and reliably increase strength support for the floating end of the vaporizer, improves the rigidity of the tube bundle, ensures reliable use under the working conditions of ship and other vibration impact, improves the use reliability of the vaporizer and prolongs the service life of the vaporizer.

The fixed plate 2 is a wedge-shaped plate, and when the fixed plate 2 is clamped between the inner wall of the shell 3 and the edge of the support tube plate 4, the fixed plate 2 is welded with the shell 3 at the same time. Above-mentioned structure, the fixed plate can reliably fix a position the support tube sheet, and support tube sheet and cooling tube fixed connection to the realization is fixed reliably and is supported bundle core group 1, satisfies the vaporizer and is shaking too big occasion operation requirement.

The fixing plate 2 comprises a wedge-shaped plate with a groove and a wedge-shaped plate without a groove. Above-mentioned structure, the fixed block has two kinds, and the trough of belt with do not take the groove, according to casing (barrel) diameter size, choose for use at least three fixed block, a trough of belt fixed block, the fixed block of trough of belt inserts at last to the tip of all fixed blocks welds with the barrel respectively, reliably connects.

A plurality of fixed plates 2 of the liquefied natural gas vaporizer structure are arranged along the inner wall of the shell 1 in a circle at intervals, and the end part 6 of each fixed plate 2 is welded with the shell 3. The structure is welded at the end part so as to prevent the cooling pipe from being welded and damaged and effectively protect the cooling pipe of the pipe bundle core group 1.

The tube bundle core group 1 comprises cooling tubes 7, baffle plates 8 and a supporting tube plate 4, and the supporting tube plate 4 is connected with the inner wall of the shell 3 in a welding manner. The supporting tube plate 4 is welded with the shell 3. The support tube plate 4 is positioned at the end part of the tube bundle core group 1. The tube bundle core group 1 is a U-shaped tube bundle core group. The fixing plate 2 is made of metal materials.

The present invention has been described in connection with the accompanying drawings, and it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the utility model, and its application to other applications without departing from the spirit and scope of the utility model.

Claims

1. A liquefied natural gas vaporizer structure, characterized by: including bundle core group (1), a plurality of fixed plate (2), bundle core group (1) set up in casing (3), support tube sheet (4) are connected to bundle core group (1) one end, set up positioning groove (5) on fixed plate (2), every fixed plate (2) clamp between casing (3) inner wall and support tube sheet (4) border, positioning groove (5) of every fixed plate (2) clamp support tube sheet (4) border position.

2. The lng vaporizer structure of claim 1, wherein: fixed plate (2) be the wedge board, when fixed plate (2) clamped between casing (3) inner wall and support tube sheet (4) border, fixed plate (2) and casing (3) welding simultaneously.

3. The liquefied natural gas vaporizer structure according to claim 1 or 2, wherein: the fixing plate (2) comprises a wedge-shaped plate with a groove and a wedge-shaped plate without a groove.

4. The liquefied natural gas vaporizer structure according to claim 1 or 2, wherein: a plurality of fixed plates (2) of the liquefied natural gas vaporizer structure are arranged along the circumference of the inner wall of the shell (3) at intervals, and the end part (6) of each fixed plate (2) is welded with the shell (3).

5. The liquefied natural gas vaporizer structure according to claim 1 or 2, wherein: the tube bundle core group (1) comprises cooling tubes (7), baffle plates (8) and a supporting tube plate (4), and the supporting tube plate (4) is connected with the inner wall of the shell (3) in a welding mode.

6. The lng vaporizer structure of claim 5, wherein: the supporting tube plate (4) is welded with the shell (3).

7. The liquefied natural gas vaporizer structure according to claim 1 or 2, wherein: the supporting tube plate (4) is positioned at the end part of the tube bundle core group (1).

8. The liquefied natural gas vaporizer structure according to claim 1 or 2, wherein: the tube bundle core group (1) is a U-shaped tube bundle core group.

9. The liquefied natural gas vaporizer structure according to claim 1 or 2, wherein: the fixing plate (2) is made of metal materials.