CN217459348U

CN217459348U - A drying system for LNG production

Info

Publication number: CN217459348U
Application number: CN202220738505.8U
Authority: CN
Inventors: 杨大富; 冯世春; 向航; 王莹莹
Original assignee: Ningxia Yufeng Chemical Co ltd
Current assignee: Ningxia Yufeng Chemical Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-20
Anticipated expiration: 2032-03-31

Abstract

The application relates to a drying system for LNG production, relates to the technical field of LNG production systems, and comprises a filtering assembly and a drying assembly, wherein the drying assembly comprises a first drying part and a second drying part, the first drying part and the second drying part have the same structure, the first drying part comprises a drying part and at least one adsorption part, at least one adsorption part is arranged in the drying part, the adsorption part is detachably connected with the drying part, and an adsorbent is filled in the adsorption part; the filter assembly is connected and communicated with the first drying part, and the first drying part is connected and communicated with the second drying part. This application has the effect that improves the dry degree of LNG.

Description

A drying system for LNG production

Technical Field

The application relates to the technical field of LNG production systems, in particular to a drying system for LNG production.

Background

LNG is a clean, efficient energy source, and has high environmental benefits and energy utilization efficiency compared to other energy sources.

Prior to LNG production, the process gas is subjected to a molecular sieve adsorption process to remove water therefrom, typically by first passing the process gas through an adsorbent bed to remove most of the CO2, and then passing the synthesis gas through a molecular sieve adsorbent bed to remove the water and CO2 to a producible level.

With respect to the related art in the above, the inventors consider that the degree of drying of LNG is low.

SUMMERY OF THE UTILITY MODEL

To improve the dryness of LNG, the present application provides a drying system for LNG production.

The application provides a drying system for LNG production adopts following technical scheme:

a drying system for LNG production comprises a filtering assembly and a drying assembly, wherein the drying assembly comprises a first drying component and a second drying component, the first drying component and the second drying component are identical in structure, the first drying component comprises a drying piece and at least one adsorption piece, the adsorption piece is arranged in the drying piece, the adsorption piece is detachably connected with the drying piece, and an adsorbent is filled in the adsorption piece; the filter assembly is connected and communicated with the first drying part, and the first drying part is connected and communicated with the second drying part.

Through adopting above-mentioned technical scheme, the regeneration gas becomes for purifying the gas after filtering through filtering component, and the drying process is carried out respectively through first dry part and second dry part to the purified gas again, and in the purified gas got into dry piece, adsorb through the adsorbent in the dry piece, and the adsorbent adsorbs moisture and carbon dioxide in with gas for gas can be dry, thereby improves the dry degree of LNG.

Optionally, the top end of the drying part is communicated with a first air pipe, the bottom end of the drying part is communicated with a second air pipe, a sliding rail is arranged in the drying part, the adsorption part is arranged close to the sliding rail, one end, close to the sliding rail, of the adsorption part is connected with a pulley, and the pulley slides along the sliding rail.

Optionally, the adsorption part is provided with a plurality ofly along the slide rail, all is connected with between a plurality of adsorption parts and connects the rope.

Optionally, the slide rail is laminated with the inside wall of drying, and slide rail one end is close to the bottom of drying and can dismantle with drying and be connected, and the top that the other end is close to drying can dismantle with drying and be connected.

Optionally, a placing opening is formed in the top of the drying part, a placing plate is hinged to the placing opening of the drying part, and a sealing ring is arranged between the placing plate and the placing opening.

Optionally, a hook is arranged in the drying part close to the placing opening.

Optionally, the first drying part is provided with a heating element, and the heating element is connected with the first drying part and used for heating the first drying part; the second drying part is provided with a cooling piece, and the cooling piece is connected with the second drying part and used for cooling the second drying part.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the purification component is arranged to purify the regenerated gas, the purified gas is dried in the first drying part and then enters the second drying part again for drying, the dryness of the LNG is improved, and the adsorption piece is detachably connected with the drying piece, so that the adsorbent in the adsorption piece can be conveniently replaced;

2. set up the slide rail in the drying piece, set up a plurality of absorption pieces on the slide rail to adsorbing the piece and establishing ties with connecting the rope, be convenient for change the adsorbent in a plurality of absorption pieces when improving adsorption efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a drying system for LNG production according to an embodiment of the present disclosure.

Fig. 2 is a partial perspective cross-sectional view of a drying system for LNG production according to an embodiment of the present application.

Fig. 3 is a perspective cross-sectional view of a drying system for LNG production according to an embodiment of the present application.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Description of reference numerals: 1. a filter assembly; 2. a drying assembly; 21. a first drying part; 211. drying the part; 212. an adsorbing member; 213. placing the plate; 214. a seal ring; 215. a cover plate; 216. connecting ropes; 22. a second drying part; 3. a first air duct; 4. a second air duct; 5. a heating member; 6. a cooling member; 7. a slide rail; 8. a pulley; 9. a magnet; 10. and (4) hanging hooks.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a drying system for LNG production.

Referring to fig. 1 and 2, a drying system for LNG production, including a filter assembly 1 and a drying assembly 2, the filter assembly 1 is an air filter, the drying assembly 2 includes a first drying component 21 and a second drying component 22, the first drying component 21 and the second drying component 22 have the same structure, the first drying component 211 includes a drying component 211 and at least one adsorption component 212, the drying component 211 is a drying tank, the top end of the drying component 211 is communicated with a first air pipe 3 through a flange, the bottom of the drying component 211 is connected with a second air pipe 4 through a flange, one end of the first air pipe 3, which is far away from the drying component 211, is communicated with the filter assembly 1, one end of the second air pipe 4, which is far away from the drying component 211, in the first drying component 21 is communicated with the first air pipe 3 in the second drying component 22, and dried regeneration gas is introduced into the next processing assembly through the second air pipe 4 in the second drying component 22. The adsorbing member 212 is disposed in the drying member 211, and one, two, three or four, in this embodiment five, adsorbing members 212 are disposed, and an adsorbent, which is a molecular sieve adsorbent, is installed in the adsorbing member 212.

Referring to fig. 1 and 2, a placing opening is formed in the top of the drying piece 211, the drying piece 211 is hinged to a placing plate 213 through a hinge at the placing opening, a sealing ring 214 is bonded to the peripheral side wall of the placing plate 213, and the sealing ring 214 is a rubber ring. When the suction unit 212 is mounted, the placing plate 213 is opened and then the suction unit 212 is mounted by operation, which facilitates mounting the suction unit 212 or replacement of the suction agent in the suction unit 212.

Referring to fig. 1, a heating member 5 is fixedly connected to a drying member 211 in a first drying part 21 by bolts, the heating member 5 is an air heater, and the heating member 5 is communicated with the drying member 211 adjacent to the heating member and can heat regeneration gas in the drying member 211 communicated with the heating member 5; the second drying means 22 has a cooling material 6 fixedly connected to the drying material 211 by bolts, the cooling material 6 is an air cooler, and the cooling material 6 communicates with the drying material 211 adjacent thereto, and can cool the regeneration gas in the drying material 211 communicating therewith.

Referring to fig. 2, a slide rail 7 is arranged in the drying part 211, the slide rail 7 is two rails symmetrically arranged along the drying part 211, the cross section of the slide rail 7 is C-shaped, the adsorption part 212 is positioned on one side of the slide rail 7, the adsorption part 212 is a hollow box body provided with a plurality of openings, an opening is arranged at the upper end of the adsorption part 212, a cover plate 215 is elastically clamped at the opening, and when the adsorbent is replaced, the cover plate 215 is taken down, a new adsorbent is placed, and the cover plate 215 is buckled. One side of the adsorption part 212 close to the slide rail 7 is welded with four pulleys 8, the four pulleys 8 are symmetrically arranged on the adsorption part 212 in pairs, and the pulleys 8 are located in the slide rail 7 and can slide along the slide rail 7. Magnet 9 is welded to the one end of slide rail 7 near the dry piece 211 diapire, and the one end of slide rail 7 near the dry piece 211 roof passes through bolt and dry piece 211 inner wall fixed connection. When the slide rail 7 is installed, the magnet 9 at the lower end of the slide rail 7 performs prepositioning on the slide rail 7, and then the slide rail 7 is fixed in the drying part 211 through a bolt.

Referring to fig. 3 and 4, the five adsorbing members 212 are all connected with a connecting rope 216, the connecting rope 216 is a steel wire rope, the connecting rope 216 penetrates through the five adsorbing members 212 from bottom to top, a hook 10 is welded on the side wall of the drying member 211 close to the placing plate 213, and one end of the connecting rope 216 close to the hook 10 is bound with the hook 10. When the adsorbents in the five adsorbing members 212 need to be replaced, the connecting ropes 216 are used for pulling out the five adsorbing members 212 in sequence, so that the adsorbents can be replaced conveniently.

The implementation principle of the drying system for LNG production in the embodiment of the application is as follows: when the regeneration gas is dried, firstly, the regeneration gas is filtered and purified to form purified gas, then the purified gas is conveyed into the first drying part 21, the adsorbent in the first drying part 21 adsorbs water and CO2 in the purified gas, meanwhile, the purified gas is heated, the purified gas in the first drying part 21 enters the second drying part 22 again and is adsorbed by the second drying part 22 again, and meanwhile, the second drying part 22 can cool the purified gas in the drying part 211 so as to improve the dryness degree of LNG.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Drying system for LNG production, comprising a filtering assembly (1) and a drying assembly (2), characterized in that: the drying assembly (2) comprises a first drying part (21) and a second drying part (22), the first drying part (21) and the second drying part (22) are identical in structure, the first drying part (21) comprises a drying part (211) and at least one adsorption part (212), the at least one adsorption part (212) is arranged in the drying part (211), the adsorption part (212) is detachably connected with the drying part (211), and an adsorbent is filled in the adsorption part (212); the filter assembly (1) is connected and communicated with a first drying part (21), and the first drying part (21) is connected and communicated with a second drying part (22).

2. Drying system for LNG production according to claim 1, characterized in that: the drying part (211) top intercommunication has first tuber pipe (3), and the bottom intercommunication has second tuber pipe (4), is provided with slide rail (7) in drying part (211), adsorbs the piece (212) and is close to slide rail (7) and set up, adsorbs the one end that piece (212) are close to slide rail (7) and is connected with pulley (8), and slide rail (7) are followed in pulley (8).

3. Drying system for LNG production according to claim 1, characterized in that: the adsorption pieces (212) are arranged along the sliding rail (7) in a plurality, and connecting ropes (216) are connected among the adsorption pieces (212).

4. Drying system for LNG production according to claim 2, characterized in that: slide rail (7) and the inside wall laminating of drying member (211), slide rail (7) one end is close to the bottom of drying member (211) and can dismantle with drying member (211) and be connected, and the top that the other end is close to drying member (211) can dismantle with drying member (211) and be connected.

5. Drying system for LNG production according to claim 1, characterized in that: the top of the drying piece (211) is provided with a placing opening, the drying piece (211) is hinged to the placing opening to form a placing plate (213), and a sealing ring (214) is arranged between the placing plate (213) and the placing opening.

6. Drying system for LNG production according to claim 1, characterized in that: a hook (10) is arranged in the drying piece (211) close to the placing opening.

7. Drying system for LNG production according to claim 1, characterized in that: the first drying part (21) is provided with a heating part (5), and the heating part (5) is connected with the first drying part (21) and used for heating the first drying part (21); the second drying part (22) is provided with a cooling piece (6), and the cooling piece (6) is connected with the second drying part (22) and used for cooling the second drying part (22).