CN215809691U

CN215809691U - Large-scale industrial natural gas's liquefying plant

Info

Publication number: CN215809691U
Application number: CN202121307312.9U
Authority: CN
Inventors: 王留红; 张建; 于海龙; 刘方
Original assignee: Xuzhou Huabao Energy Technology Co ltd
Current assignee: Xuzhou Huabao Energy Technology Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-02-11
Anticipated expiration: 2031-06-11

Abstract

The utility model belongs to the technical field of natural gas, and particularly relates to a large-scale industrial natural gas liquefaction device which comprises a shell, wherein a liquefaction dehydration bin, a solidification dehydration bin and a natural gas liquefaction bin are arranged on the inner side of the shell, a first partition plate is arranged between the liquefaction dehydration bin and the solidification dehydration bin, a second partition plate is arranged between the solidification dehydration bin and the natural gas liquefaction bin, a water liquefaction device is arranged in the liquefaction dehydration bin, a gas circulation pipe is arranged in the liquefaction dehydration bin, a water outlet is formed in the first partition plate, a freezing device is arranged in the solidification dehydration bin, an ice freezing pipe is arranged on the freezing device, and an air leakage hole is formed in the second partition plate.

Description

Large-scale industrial natural gas's liquefying plant

Technical Field

The utility model belongs to the technical field of natural gas, and particularly relates to a large-scale industrial natural gas liquefying device.

Background

Natural gas is used as clean, efficient and low-pollution energy to replace other fuels, can greatly reduce the emission of carbon dioxide, sulfur dioxide and smoke dust, has very obvious effects on improving atmospheric environment and lightening greenhouse effect, is gradually recognized by people with the advantages of high efficiency, cleanness, convenience and the like, and is the trend of energy development in the world at present. Before natural gas transportation, the natural gas needs to be liquefied, so that the density is increased, and the volume is reduced.

Chinese patent with application number CN202021523700.6 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 both sides about the inner wall of casing of rigid coupling respectively of end cover, the inside rigid coupling of inner wall of end cover has a plurality of screwed pipes, the fixed intercommunication of connecting pipe is 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.

However, in the above prior art, when natural gas is liquefied, water vapor mixed in the natural gas cannot be removed, and water in the natural gas is changed from a gaseous state to a solid state in the process of liquefying the natural gas, so that freezing blocks a liquid outlet, and the device is damaged.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a large-scale industrial natural gas liquefying device, which is used for solving the problem that water vapor mixed with natural gas is not removed in the liquefying process of the conventional natural gas liquefying device.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a liquefaction device of large-scale industry natural gas, includes the casing, the casing inboard is equipped with liquefaction sump, solidification sump, natural gas liquefaction storehouse, be equipped with first baffle between liquefaction sump and the solidification sump, be equipped with the second baffle between solidification sump and the natural gas liquefaction storehouse, be equipped with the water liquefaction device in the liquefaction sump, be equipped with the gas flow pipe in the liquefaction sump, be equipped with the delivery port on the first baffle, be equipped with the device that freezes in the solidification sump, be equipped with the frozen pipe on the device that freezes, be equipped with the gas leakage hole on the second baffle.

Furthermore, an air inlet valve is arranged on the shell, a water outlet valve is arranged on the shell, and the water outlet valve is connected with the water outlet.

The natural gas is input into the shell from the air inlet valve, the water liquefied in the liquefaction water removal bin flows out from the water outlet valve through the water outlet, and a user can control the opening and closing of the water outlet valve.

Furthermore, a natural gas liquefaction device is arranged in the natural gas liquefaction bin, a motor is arranged at the bottom of the shell, a stirring shaft is arranged on the motor, and a stirring rod is arranged on the stirring shaft.

Natural gas liquefaction device can become the liquid with the natural gas cooling from the gaseous state, and the motor can drive the (mixing) shaft and rotate, and the epaxial puddler of stirring can become the liquid from the gaseous state with the natural gas misce bene in the natural gas liquefaction storehouse, is convenient for.

Further, natural gas liquefaction storehouse bottom is equipped with the slope, the minimum play in slope is equipped with the liquid outlet, the casing bottom is equipped with out the liquid valve, the liquid outlet is connected with out the liquid valve.

The slope can be gathered the natural gas of liquefaction, flows out from going out the liquid valve through the liquid outlet, and the user can control opening and closing of going out the liquid valve.

Furthermore, a first cooling device, a second cooling device and a third cooling device are arranged on the shell, the first cooling device is connected with the water liquefaction device, the second cooling device is connected with the freezing device, and the third cooling device is connected with the natural gas liquefaction device.

The first cooling device is connected with the water liquefying device, the first cooling device controls the temperature of the water liquefying device to be between one degree and five degrees to enable water vapor to be liquid, the second cooling device is connected with the freezing device, the second cooling device controls the temperature of the freezing device to be between minus ten degrees and minus twenty degrees to enable residual water vapor to be condensed into solid on the freezing device, the third cooling device is connected with the natural gas liquefying device, and the third cooling device controls the temperature of the natural gas liquefying device to be between minus one hundred sixty degrees and minus one hundred sixty five degrees to enable natural gas to be liquefied.

Further, a clamping piece is arranged in the solidification water removal bin, a sealing door is arranged on the outer side of the solidification water removal bin, a handle is arranged on the sealing door, and a supporting piece is arranged at the bottom of the shell.

The fastener can be fixed the device that freezes at solidification dewatering storehouse inboard, and the user can open the sealing door, will freeze the device and take out and carry out the deicing, and the handle is a point of application of force for the user, lets the user can easily open the sealing door, and support piece provides the bottom sprag for the casing.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model can remove the water vapor before the natural gas is liquefied, and prevent the water vapor from solidifying and blocking the inner pipeline of the device;

2. a sealing door is additionally arranged, the freezing device in the solidification dewatering bin can be taken out, and water vapor solidified on the freezing device is removed;

3. the stirring rod is additionally arranged, so that the natural gas can be uniformly stirred in the natural gas liquefaction process, and the natural gas can be conveniently changed into a liquid state from a gaseous state.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a large-scale industrial natural gas liquefaction plant according to the present invention;

FIG. 2 is a perspective cross-sectional view of an embodiment of a large industrial natural gas liquefaction plant of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

reference numerals in the drawings of the specification include:

the device comprises a shell 1, a sealing door 2, a handle 3, an air inlet valve 4, a water outlet valve 5, a liquid outlet valve 6, a motor 7, a support piece 8, a first cooling device 9, a second cooling device 10, a third cooling device 11, a liquefaction water removal bin 12, a solidification water removal bin 13, a natural gas liquefaction bin 14, a first partition plate 15, a second partition plate 16, a gas circulation pipe 17, a water liquefaction device 18, a water outlet 19, a freezing device 20, an ice freezing pipe 21, a clamping piece 22, an air leakage hole 23, a stirring shaft 24, a stirring rod 25, a natural gas liquefaction device 26, a slope 27 and a liquid outlet 28.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1-3, the large-scale industrial natural gas liquefaction device of the present invention includes a housing 1, a liquefaction dehydration bin 12, a solidification dehydration bin 13, and a natural gas liquefaction bin 14 are disposed inside the housing 1, a first partition 15 is disposed between the liquefaction dehydration bin 12 and the solidification dehydration bin 13, a second partition 16 is disposed between the solidification dehydration bin 13 and the natural gas liquefaction bin 14, a water liquefaction device 18 is disposed in the liquefaction dehydration bin 12, a gas circulation pipe 17 is disposed in the liquefaction dehydration bin 12, a water outlet 19 is disposed on the first partition 15, a freezing device 20 is disposed in the solidification dehydration bin 13, an ice pipe 21 is disposed on the freezing device 20, and an air leakage hole 23 is disposed on the second partition 16. Specifically, the housing 1 is a shell of the whole device, the liquefaction water removal bin 12 is used for removing water vapor through liquefaction, the solidification water removal bin 13 is used for removing water vapor through solidification, the natural gas liquefaction bin 14 is used for liquefying natural gas, the liquefaction water removal bin 12 is separated from the solidification water removal bin 13 through a first partition plate 15, the solidification water removal bin 13 is separated from the natural gas liquefaction bin 14 through a second partition plate 16, the water liquefaction device 18 can reduce the temperature of input gas, the water vapor is condensed into water drops, the natural gas is kept unchanged, the natural gas and a part of water vapor which is not completely liquefied enter the solidification water removal bin 13 from a gas circulation pipe 17, the water vapor that has been liquefied flows into the water outlet 19, the freezing device 20 can emit low temperature, the residual water vapor is condensed into ice on the freezing pipe 21, while the natural gas remains unchanged, the natural gas enters the natural gas liquefaction vessel 14 through the leakage orifice 23.

Example two:

as a further improvement of the previous embodiment, as shown in fig. 1-3, the present invention provides a large-scale industrial natural gas liquefaction device, which includes a housing 1, a liquefaction dewatering bin 12, a solidification dewatering bin 13, and a natural gas liquefaction bin 14 are disposed inside the housing 1, a first partition 15 is disposed between the liquefaction dewatering bin 12 and the solidification dewatering bin 13, a second partition 16 is disposed between the solidification dewatering bin 13 and the natural gas liquefaction bin 14, a water liquefaction device 18 is disposed in the liquefaction dewatering bin 12, a gas flow pipe 17 is disposed in the liquefaction dewatering bin 12, a water outlet 19 is disposed on the first partition 15, a freezing device 20 is disposed in the solidification dewatering bin 13, an ice pipe 21 is disposed on the freezing device 20, and a gas leakage hole 23 is disposed on the second partition 16. Specifically, the housing 1 is a shell of the whole device, the liquefaction water removal bin 12 is used for removing water vapor through liquefaction, the solidification water removal bin 13 is used for removing water vapor through solidification, the natural gas liquefaction bin 14 is used for liquefying natural gas, the liquefaction water removal bin 12 is separated from the solidification water removal bin 13 through a first partition plate 15, the solidification water removal bin 13 is separated from the natural gas liquefaction bin 14 through a second partition plate 16, the water liquefaction device 18 can reduce the temperature of input gas, the water vapor is condensed into water drops, the natural gas is kept unchanged, the natural gas and a part of water vapor which is not completely liquefied enter the solidification water removal bin 13 from a gas circulation pipe 17, the water vapor that has been liquefied flows into the water outlet 19, the freezing device 20 can emit low temperature, the residual water vapor is condensed into ice on the freezing pipe 21, while the natural gas remains unchanged, the natural gas enters the natural gas liquefaction vessel 14 through the leakage orifice 23.

An air inlet valve 4 is arranged on the shell 1, a water outlet valve 5 is arranged on the shell 1, and the water outlet valve 5 is connected with a water outlet 19. Specifically, natural gas is input into the housing 1 through the gas inlet valve 4, water liquefied in the liquefaction water removal tank 12 flows out of the water outlet valve 5 through the water outlet 19, and a user can control the opening and closing of the water outlet valve 5.

A natural gas liquefaction device 26 is arranged in the natural gas liquefaction bin 14, a motor 7 is arranged at the bottom of the shell 1, a stirring shaft 24 is arranged on the motor 7, and a stirring rod 25 is arranged on the stirring shaft 24. Particularly, natural gas liquefaction device 26 can become liquid with the natural gas cooling from the gaseous state, and motor 7 can drive (mixing) shaft 24 and rotate, and the puddler 25 on the (mixing) shaft 24 can become liquid with the natural gas misce bene in natural gas liquefaction storehouse 14, is convenient for from the gaseous state.

The bottom of the natural gas liquefaction bin 14 is provided with a slope 27, the lowest part of the slope 27 is provided with a liquid outlet 28, the bottom of the shell 1 is provided with a liquid outlet valve 6, and the liquid outlet 28 is connected with the liquid outlet valve 6. In particular, the ramp 27 is capable of gathering liquefied natural gas for flow out of the liquid outlet valve 6 through the liquid outlet 28, and the user is capable of controlling the opening and closing of the liquid outlet valve 6.

The shell 1 is provided with a first cooling device 9, a second cooling device 10 and a third cooling device 11, wherein the first cooling device is connected with a water liquefaction device 18, the second cooling device 10 is connected with a freezing device 20, and the third cooling device 11 is connected with a natural gas liquefaction device 26. Specifically, the first cooling device is connected with the water liquefying device 18, the first cooling device controls the temperature of the water liquefying device 18 to be one degree to five degrees so that the water vapor becomes liquid, the second cooling device 10 is connected with the freezing device 20, the second cooling device 10 controls the temperature of the freezing device 20 to be minus ten degrees to minus twenty degrees so that the residual water vapor can be condensed into solid on the freezing device 20, the third cooling device 11 is connected with the natural gas liquefying device 26, and the third cooling device 11 controls the temperature of the natural gas liquefying device 26 to be minus one hundred sixty degrees to minus one hundred sixty five degrees so that the natural gas is liquefied.

The curing dewatering bin 13 is internally provided with a clamping piece 22, the outer side of the curing dewatering bin 13 is provided with a sealing door 2, the sealing door 2 is provided with a handle 3, and the bottom of the shell 1 is provided with a supporting piece 8. Specifically, the clamping piece 22 can fix the freezing device 20 on the inner side of the solidified water removing bin 13, a user can open the sealing door 2, take out the freezing device 20 for deicing, the handle 3 provides a force application point for the user, the user can easily open the sealing door 2, and the support piece 8 provides bottom support for the shell 1.

Embodiment two compared to embodiment one, in embodiment two, natural gas is input into the housing 1 from the air inlet valve 4, water liquefied in the liquefaction water removal bin 12 flows out from the water outlet valve 5 through the water outlet 19, a user can control the opening and closing of the water outlet valve 5, the natural gas liquefaction device 26 can cool natural gas and change natural gas from gas state to liquid state, the motor 7 can drive the stirring shaft 24 to rotate, the stirring rod 25 on the stirring shaft 24 can uniformly mix natural gas in the natural gas liquefaction bin 14 so as to change natural gas from gas state to liquid state, the ramp 27 can collect liquefied natural gas and flow out from the liquid outlet valve 6 through the liquid outlet 28, the user can control the opening and closing of the liquid outlet valve 6, the first cooling device is connected with the water liquefaction device 18, the first cooling device controls the temperature of the water liquefaction device 18 to be between one degree and five degrees so as to change water vapor into liquid state, the second cooling device 10 is connected with the freezing device 20, the second cooling device 10 controls the temperature of the freezing device 20 to be between minus ten degrees and minus twenty degrees, residual water vapor can be condensed into a solid state on the freezing device 20, the third cooling device 11 is connected with the natural gas liquefying device 26, the third cooling device 11 controls the temperature of the natural gas liquefying device 26 to be between minus one hundred sixty degrees and minus one hundred sixty five degrees, the natural gas is liquefied, the freezing device 20 can be fixed on the inner side of the solidifying and dehydrating bin 13 through the clamping piece 22, a user can open the sealing door 2, the freezing device 20 is taken out for deicing, the handle 3 provides a force application point for the user, the user can easily open the sealing door 2, and the support piece 8 provides bottom support for the shell 1.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the utility model in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the utility model may be embodied in practice with the teachings of the utility model. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. A large-scale industrial natural gas liquefaction device is characterized in that: including casing (1), casing (1) inboard is equipped with liquefaction and removes sump (12), solidification and removes sump (13), natural gas liquefaction storehouse (14), liquefaction removes and is equipped with first baffle (15) between sump (12) and the solidification removes the sump (13), it removes and is equipped with second baffle (16) between sump (13) and natural gas liquefaction storehouse (14) to solidify, it removes and is equipped with water liquefaction device (18) in sump (12) to liquefy, it removes and is equipped with gas flow pipe (17) in sump (12) to liquefy, be equipped with delivery port (19) on first baffle (15), it removes and is equipped with freezing device (20) in sump (13) to solidify, be equipped with on freezing device (20) and freeze pipe (21), be equipped with gas leakage hole (23) on second baffle (16).

2. A large industrial natural gas liquefaction plant according to claim 1, characterised in that: be equipped with admission valve (4) on casing (1), be equipped with outlet valve (5) on casing (1), outlet valve (5) are connected with delivery port (19).

3. A large industrial natural gas liquefaction plant according to claim 2, wherein: the natural gas liquefaction device is characterized in that a natural gas liquefaction device (26) is arranged in the natural gas liquefaction bin (14), a motor (7) is arranged at the bottom of the shell (1), a stirring shaft (24) is arranged on the motor (7), and a stirring rod (25) is arranged on the stirring shaft (24).

4. A large industrial natural gas liquefaction plant according to claim 3, wherein: the natural gas liquefaction storehouse (14) bottom is equipped with slope (27), slope (27) are gone out at the minimum and are equipped with liquid outlet (28), casing (1) bottom is equipped with out liquid valve (6), liquid outlet (28) are connected with out liquid valve (6).

5. A large industrial natural gas liquefaction plant according to claim 4, characterised in that: the shell (1) is provided with a first cooling device (9), a second cooling device (10) and a third cooling device (11), the first cooling device is connected with a water liquefying device (18), the second cooling device (10) is connected with a freezing device (20), and the third cooling device (11) is connected with a natural gas liquefying device (26).

6. A large industrial natural gas liquefaction plant according to claim 5, characterised in that: the novel water treatment device is characterized in that a clamping piece (22) is arranged in the solidification water removal bin (13), a sealing door (2) is arranged on the outer side of the solidification water removal bin (13), a handle (3) is arranged on the sealing door (2), and a supporting piece (8) is arranged at the bottom of the shell (1).