CN212566490U

CN212566490U - Pre-cooling type natural gas liquefaction device

Info

Publication number: CN212566490U
Application number: CN202021523700.6U
Authority: CN
Inventors: 胡成星; 陈波; 杨冬磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-02-19
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a precooling type natural gas liquefaction device, including casing and trachea, the fixed intercommunication in right-hand member top of casing has the trachea, the internally mounted of casing has the liquefaction subassembly, the liquefaction subassembly is including connecting pipe, baffle, end cover, inlet tube and screwed pipe, and is a plurality of the rigid coupling is both sides about the inner wall of casing respectively for the end cover, the inside rigid coupling of inner wall of end cover has a plurality of screwed pipes, even manage fixed intercommunication in the right side upper end of casing. This precooling type natural gas liquefaction device, structure scientific and reasonable, convenience safe in utilization is provided with the casing, the trachea, the branch pipe, the connecting pipe, the sleeve, cooperation between first drain pipe and the second drain pipe, accomplish under the refrigerated condition in earlier stage of the inside of casing, the natural gas is injected in to the accessible trachea realization, can get into the inside liquefaction that realizes of casing after the completion precooling, the limited effect problem that leads to having influenced precooling apparatus of the contact ability of precooling process natural gas and precooling apparatus of prior art has been avoided.

Description

Pre-cooling type natural gas liquefaction device

Technical Field

The utility model relates to a natural gas technical field specifically is a precooling formula natural gas liquefaction device.

Background

The natural gas refers to a type of combustible gas existing in nature, and is a fossil fuel, including gases formed in various natural processes in an atmosphere, a water ring and a rock ring, including oil field gas, gas field gas, mud volcanic gas, coal bed gas, biogenetic gas and the like, and in order to facilitate transportation and storage of the natural gas, the natural gas is usually subjected to low-temperature liquefaction treatment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a precooling formula natural gas liquefaction device to the limited effect problem that leads to having influenced precooling apparatus of precooling process natural gas that proposes in solving above-mentioned background art and precooling apparatus's contact ability.

In order to achieve the above object, the utility model provides a following technical scheme: a pre-cooling type natural gas liquefaction device comprises a shell and a gas pipe, wherein the gas pipe is fixedly communicated above the right end of the shell, and a liquefaction assembly is installed inside the shell;

the liquefaction assembly comprises a connecting pipe, a partition plate, an end cover, a water inlet pipe and a threaded pipe;

it is a plurality of both sides about the inner wall of end cover rigid coupling respectively the inner wall of casing, the inside rigid coupling of inner wall of end cover has a plurality of screwed pipes, upper end the upper end center of end cover passes through the fixed linking to each other of the inner wall of baffle and casing, the fixed intercommunication of inlet tube is in the left side upper end of casing, the fixed intercommunication of linking pipe is in the right side upper end of casing.

Preferably, the vertical center position of the partition plate coincides with the vertical center position of the housing.

Preferably, a refrigeration assembly is arranged inside the lower end of the inner wall of the shell;

the refrigerating assembly comprises a first lead, a semiconductor refrigerating piece, a second lead and an ultrasonic vibrating bar;

it is a plurality of semiconductor refrigeration piece distributes respectively at the inner wall below center and the left and right sides of casing, the lower extreme of semiconductor refrigeration piece all links to each other with the inner wall of casing is fixed, and is a plurality of ultrasonic vibration stick distributes both ends about the inner wall below of casing respectively, ultrasonic vibration stick's lower extreme all links to each other with the inner wall of casing is fixed, semiconductor refrigeration piece and ultrasonic vibration stick's lower extreme links to each other with external power electrical property through second wire and first wire respectively.

Preferably, the plurality of semiconductor refrigeration pieces and the ultrasonic vibration rods are axially symmetrically distributed by taking the vertical center of the shell as a reference.

Preferably, the right end of the connecting pipe is provided with a precooling assembly;

the precooling assembly comprises a first valve, a bracket, a first drainage pipe, a branch pipe and a sleeve;

the sleeve rigid coupling is at tracheal outer wall, telescopic upper end and the fixed intercommunication of connecting pipe are a plurality of the equal rigid coupling of branch pipe is inside tracheal inner wall, and is a plurality of the branch pipe all is linked together with the sleeve, the fixed intercommunication of telescopic lower extreme has first calandria pipe, the outer wall of first calandria pipe passes through the support and links to each other with the casing is fixed, first valve is installed to the outer wall top of first calandria pipe.

Preferably, the outer wall lower extreme rigid coupling of casing has the bottom plate, the lower extreme outside rigid coupling of bottom plate has a plurality of stabilizer blades, the fixed intercommunication in left end below of casing has the second drain pipe, the second valve is installed to the outer wall of second drain pipe, the outer wall rigid coupling of casing has the heat preservation, the flange is all installed to the outside outer wall of trachea, inlet tube, second drain pipe and first drain pipe.

Compared with the prior art, the beneficial effects of the utility model are that: this precooling type natural gas liquefaction device, structure scientific and reasonable, convenience safe in utilization:

be provided with the casing, the trachea, the branch pipe, the connecting pipe, the sleeve, cooperation between first drain pipe and the second drain pipe, accomplish under the inside refrigerated circumstances in earlier stage of casing, the accessible trachea realizes injecting into the natural gas, constantly flowing coolant accessible connecting pipe simultaneously, branch pipe and sleeve are finally followed first drain pipe and are located to discharge, can fully contact with the outer wall of tracheal inner wall and a plurality of branch pipe at the in-process that the natural gas flows, realize the enhancement of precooling ability, can get into the inside liquefaction that realizes of casing after the completion precooling, the limited effect problem that has led to the influence precooling apparatus of contact ability of precooling process natural gas and precooling apparatus of having avoided prior art.

Be provided with the screwed pipe, a housing, the inlet tube, cooperation between semiconductor refrigeration piece and the ultrasonic vibration stick, when the casing carries out earlier stage refrigeration processing, the coolant passes through partial screwed pipe and flows, the realization carries out the heat transfer to the casing, coolant temperature can improve by a wide margin when just injecting this moment, the semiconductor refrigeration piece can be to coolant secondary cooling, ultrasonic vibration stick can realize the abundant contact of coolant and semiconductor refrigeration piece, then another part screwed pipe of coolant accessible flows, the problem of prior art can't lead to the heat transfer ability of backward flow discharge process to reduce by a wide margin to the coolant to carry out secondary refrigeration when the earlier stage of device is refrigerated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the housing, end cap and threaded pipe of FIG. 1;

FIG. 3 is a schematic view of the housing, the semiconductor chilling plate and the base plate of FIG. 1;

fig. 4 is a schematic structural view of the housing, the end cap and the second drain pipe in fig. 1.

In the figure: 1. the refrigeration device comprises a shell, 2, a refrigeration assembly, 201, a first lead, 202, a semiconductor refrigeration piece, 203, a second lead, 204, an ultrasonic vibration rod, 3, a liquefaction assembly, 301, a connecting pipe, 302, a partition plate, 303, an end cover, 304, a water inlet pipe, 305, a threaded pipe, 4, a precooling assembly, 401, a first valve, 402, a support, 403, a first water discharge pipe, 404, a branch pipe, 405, a sleeve, 5, a gas pipe, 6, a heat insulation layer, 7, a second valve, 8, a second water discharge pipe, 9, a support leg, 10, a bottom plate, 11 and a flange.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a pre-cooling natural gas liquefaction device comprises a shell 1 and a gas pipe 5, the gas pipe 5 is fixedly communicated above the right end of the shell 1, natural gas can be injected into the shell 1 through the gas pipe 5, a liquefaction component 3 is installed inside the shell 1, the liquefaction component 3 comprises a connecting pipe 301, a partition plate 302, end covers 303, a water inlet pipe 304 and a threaded pipe 305, a plurality of end covers 303 are fixedly connected to the upper side and the lower side of the inner wall of the shell 1 respectively, the shell 1 can support the end covers 303, the inner wall of the end covers 303 is fixedly connected with a plurality of threaded pipes 305, the upper side and the lower side of the end covers 303 can be communicated through the threaded pipes 305, the upper end center of the upper end cover 303 is fixedly connected with the inner wall of the shell 1 through the partition plate 302, the partition plate 302 can separate the left side and the right side of the upper end cover 303, the water inlet pipe 304 is fixedly communicated with the upper, the connecting pipe 301 is fixedly communicated with the upper end of the right side of the shell 1, and the vertical center position of the partition plate 302 is consistent with that of the shell 1.

The refrigeration assembly 2 is arranged in the lower end of the inner wall of the shell 1, the refrigeration assembly 2 comprises a first lead 201, a semiconductor refrigeration sheet 202, a second lead 203 and an ultrasonic vibration rod 204, the semiconductor refrigeration sheets 202 are respectively distributed at the center and the left and right sides of the lower part of the inner wall of the shell 1, the lower ends of the semiconductor refrigeration sheets 202 are fixedly connected with the inner wall of the shell 1, the semiconductor refrigeration sheets 202 can realize secondary cooling of flowing coolant, the ultrasonic vibration rods 204 are respectively distributed at the left and right ends of the lower part of the inner wall of the shell 1, the lower ends of the ultrasonic vibration rods 204 are fixedly connected with the inner wall of the shell 1, the ultrasonic vibration rod 204 can increase the vibration of the flowing coolant, the lower ends of the semiconductor refrigeration sheets 202 and the ultrasonic vibration rods 204 are respectively electrically connected with an external power supply through the second lead 203 and the first lead 201, and the external power supply can electrically supply the semiconductor refrigeration sheets 202 and the ultrasonic vibration rods 204, the plurality of semiconductor cooling fins 202 and the ultrasonic vibration rods 204 are axially symmetrically distributed with respect to the vertical center of the housing 1.

The right end of the connecting pipe 301 is provided with a precooling assembly 4, the precooling assembly 4 comprises a first valve 401, a support 402, a first drain pipe 403, branch pipes 404 and a sleeve 405, the sleeve 405 is fixedly connected with the outer wall of the gas pipe 5, the upper end of the sleeve 405 is fixedly communicated with the connecting pipe 301, the branch pipes 404 are fixedly connected with the inner wall of the gas pipe 5, the branch pipes 404 are communicated with the sleeve 405, a coolant can be injected into the sleeve 405 after heat exchange in the shell 1 to realize precooling treatment of the gas pipe 5, the lower end of the sleeve 405 is fixedly communicated with the first drain pipe 403, the first drain pipe 403 is used for discharging the coolant, the outer wall of the first drain pipe 403 is fixedly connected with the shell 1 through the support 402, the first valve 401 is arranged above the outer wall of the first drain pipe 403, the lower end of the outer wall of the shell 1 is fixedly connected with a bottom plate 10, the outer side of the lower end of the bottom plate 10 is fixedly connected with a plurality of support legs 9, can follow second drain pipe 8 after the natural gas liquefaction and locate to discharge, second valve 7 is installed to the outer wall of second drain pipe 8, casing 1's outer wall rigid coupling has heat preservation 6, heat preservation 6 forms for the thermal barrier coating spraying, trachea 5, inlet tube 304, flange 11 is all installed to the outside outer wall of second drain pipe 8 and first drain pipe 403, external connecting tube accessible flange 11 is connected fixedly with trachea 5, inlet tube 304, second drain pipe 8 and first drain pipe 403.

When the pre-cooling natural gas liquefaction device is needed to be used, firstly, a user can connect and fix the external connecting pipeline with the gas pipe 5, the water inlet pipe 304, the second water outlet pipe 8 and the first water outlet pipe 403 through the flange 11, then, the coolant with lower temperature can be injected into the shell 1 through the first water inlet pipe 304, the coolant can flow to the lower part of the shell 1 through a part of the threaded pipe 305, the temperature reduction and heat exchange are carried out on the interior of the shell 1 in the period, the temperature of the coolant after heat exchange is greatly improved compared with that of the coolant just injected, and the heat exchange capacity when the coolant flows out through the other part of the threaded pipe 305 is greatly reduced, at the moment, the user can start the semiconductor refrigeration piece 202 and the ultrasonic vibration rod 204, so that the semiconductor refrigeration piece 202 can cool the coolant, and meanwhile, the ultrasonic vibration of the coolant can be driven by the ultrasonic vibration rod 204 to realize the, the secondary refrigeration of the coolant is accelerated, the coolant after the refrigeration can flow out through the other part of the threaded pipe 305, the problem that the heat exchange capacity in the backflow discharging process is greatly reduced due to the fact that the secondary refrigeration cannot be carried out on the coolant in the early-stage refrigeration of the device in the prior art is solved, after the early-stage refrigeration of the interior of the shell 1 is completed, the natural gas can be injected into the interior of the shell 1 through the gas pipe 5, while the continuously flowing coolant may be finally discharged from the first drain pipe 403 through the connecting pipe 301, the branch pipe 401 and the sleeve 405, can fully contact with the inner wall of trachea 5 and the outer wall of a plurality of branch pipes 401 at the inside in-process that flows of trachea 5 at the natural gas, realize the enhancement of precooling ability, can get into the inside liquefaction that realizes of casing 1 after accomplishing the precooling, finally discharge from second drain pipe 8, accomplish the liquefaction of natural gas, avoided prior art's precooling process natural gas and precooling apparatus's the limited effect problem that leads to having influenced precooling apparatus of contact ability.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a precooling type natural gas liquefaction device, includes casing (1) and trachea (5), the fixed intercommunication in right-hand member top of casing (1) has trachea (5), its characterized in that: a liquefaction assembly (3) is arranged in the shell (1);

the liquefaction assembly (3) comprises a connecting pipe (301), a partition plate (302), an end cover (303), a water inlet pipe (304) and a threaded pipe (305);

a plurality of both sides about end cover (303) rigid coupling is respectively at the inner wall of casing (1), the inside rigid coupling of inner wall of end cover (303) has a plurality of screwed pipes (305), upper end baffle (302) and the inner wall of casing (1) are fixed to be linked to each other through the upper end center of end cover (303), inlet tube (304) are fixed to be linked together in the left side upper end of casing (1), even pipe (301) are fixed to be linked together in the right side upper end of casing (1).

2. A pre-cooled natural gas liquefaction plant according to claim 1, wherein: the vertical center position of the partition plate (302) is consistent with the vertical center position of the shell (1).

3. A pre-cooled natural gas liquefaction plant according to claim 1, wherein: a refrigeration component (2) is arranged in the lower end of the inner wall of the shell (1);

the refrigerating assembly (2) comprises a first lead (201), a semiconductor refrigerating sheet (202), a second lead (203) and an ultrasonic vibrating bar (204);

it is a plurality of semiconductor refrigeration piece (202) distributes respectively at the inner wall below center and the left and right sides of casing (1), the lower extreme of semiconductor refrigeration piece (202) all links to each other with the inner wall of casing (1) is fixed, and is a plurality of both ends are controlled in the inner wall below of casing (1) are distributed respectively to ultrasonic vibration stick (204), the lower extreme of ultrasonic vibration stick (204) all links to each other with the inner wall of casing (1) is fixed, the lower extreme of semiconductor refrigeration piece (202) and ultrasonic vibration stick (204) links to each other with external power electrical property through second wire (203) and first wire (201) respectively.

4. A pre-cooled natural gas liquefaction plant according to claim 3, wherein: the semiconductor refrigeration pieces (202) and the ultrasonic vibration rods (204) are axially symmetrically distributed by taking the vertical center of the shell (1) as a reference.

5. A pre-cooled natural gas liquefaction plant according to claim 1, wherein: the right end of the connecting pipe (301) is provided with a precooling assembly (4);

the precooling assembly (4) comprises a first valve (401), a bracket (402), a first drain pipe (403), a branch pipe (404) and a sleeve (405);

sleeve (405) rigid coupling is at the outer wall of trachea (5), the upper end and the fixed intercommunication of connecting pipe (301) of sleeve (405) are a plurality of the equal rigid coupling of branch pipe (404) is inside the inner wall of trachea (5), and is a plurality of branch pipe (404) all are linked together with sleeve (405), the fixed intercommunication of lower extreme of sleeve (405) has first drainage pipe (403), the outer wall of first drainage pipe (403) passes through support (402) and links to each other with casing (1) is fixed, first valve (401) are installed to the outer wall top of first drainage pipe (403).

6. A pre-cooled natural gas liquefaction plant according to claim 1, wherein: the outer wall lower extreme rigid coupling of casing (1) has bottom plate (10), the lower extreme outside rigid coupling of bottom plate (10) has a plurality of stabilizer blades (9), the fixed intercommunication in left end below of casing (1) has second drain pipe (8), second valve (7) are installed to the outer wall of second drain pipe (8), the outer wall rigid coupling of casing (1) has heat preservation (6), flange (11) are all installed to the outside outer wall of trachea (5), inlet tube (304), second drain pipe (8) and first drain pipe (403).