Natural gas liquefaction device with filtering structure

Abstract

The utility model discloses a natural gas liquefying device with a filter structure, which comprises a natural gas liquefier and a filter cartridge, the upper end of the natural gas liquefier is fixedly provided with a gas inlet interface, the side of the natural gas liquefier is provided with the filter cartridge, and the filter cartridge is fixedly connected with the natural gas liquefier through a fixing mechanism. The upper end of the filter cartridge is communicated with the gas inlet connector through communication, and a first mounting groove and a second mounting groove are formed in the filter cartridge. When the coarse filter element and the fine filter element are mounted, the coarse filter element and the fine filter element only need to be inserted into a first mounting groove and a second mounting groove in the filter cartridge, then limiting plates located on the two sides of the first mounting groove and the two sides of the second mounting groove are moved, the limiting plates abut against the outer walls of the two sides of the coarse filter element and the two sides of the fine filter element, and mounting and fixing can be rapidly completed; the filter structure is simple and convenient to disassemble and assemble, and a worker can replace and clean the filter assembly conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas processing, in particular to a natural gas liquefaction device with a filtering structure. Background Art

[0002] Natural gas is a clean, environmentally friendly, high-quality energy source. With the continuous adjustment of the national energy structure, China has attached increasing importance to the development of the liquefied natural gas industry. The introduction of liquefied natural gas will optimize China's energy structure and effectively solve the dual problems of energy supply security and ecological environmental protection. Natural gas liquefaction is the process of transforming natural gas from gas phase to liquid phase under higher pressure and lower temperature conditions.

[0003] There are a lot of impurities in natural gas. Direct liquefaction will result in poor quality of natural gas liquid, affecting subsequent use. Therefore, it is necessary to use a filtering structure to filter natural gas. Due to the large amount of impurities in natural gas, the filter element needs to be frequently cleaned and replaced. However, the installation method of the filter element in the existing filtering structure is relatively cumbersome, which makes the cleaning and replacement of the filter element very time-consuming, thereby affecting the overall processing efficiency. To this end, a natural gas liquefaction device with a filtering structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a natural gas liquefaction device with a filtering structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a natural gas liquefaction device with a filtering structure, comprising a natural gas liquefier and a filter cartridge, wherein an air inlet interface is fixedly installed on the upper end of the natural gas liquefier, a filter cartridge is arranged on the side of the natural gas liquefier, the filter cartridge is fixedly connected to the natural gas liquefier through a fixing mechanism, the upper end of the filter cartridge is connected to the air inlet interface through a connection, a first installation groove and a second installation groove are arranged inside the filter cartridge, a coarse filter element and a fine filter element are slidably inserted in the first installation groove and the second installation groove, respectively, a limiting mechanism acting on the coarse filter element and the fine filter element is arranged on the filter cartridge, the limiting mechanism is composed of two limiting components, the two limiting components are symmetrically distributed on both sides of the second installation groove, the limiting component is composed of a limiting plate, a guide rail and a guide plate, the two guide rails are fixedly connected to the outer wall of the filter cartridge and symmetrically distributed on the upper and lower sides of the second installation groove, the limiting plate is an arc plate, and the upper and lower sides of the limiting plate are respectively fixedly connected with guide plates that are slidably matched with the guide rails.

[0006] As a further preferred embodiment of the present technical solution, the opening positions of the No. 1 installation groove and the No. 2 installation groove are both provided with card slots, and the outer walls of the coarse filter element and the fine filter element are both fixedly connected with sealing plates that slidably fit with the card slots.

[0007] As a further preferred embodiment of the present technical solution, the fixing mechanism consists of a sleeve and a mounting plate, the sleeve is sleeved on the outer surface of the natural gas liquefier and fixedly connected to the natural gas liquefier, the mounting plate is fixedly connected to the side wall of the sleeve, and the upper end of the mounting plate is fixedly connected to the filter cartridge.

[0008] As a further preferred embodiment of the present technical solution, the bottom of the filter cartridge is connected to an air inlet pipe, and the other end of the air inlet pipe slides through the mounting plate and is connected to a natural gas source.

[0009] As a further preferred embodiment of the present technical solution, the No. 1 installation groove and the No. 2 installation groove are distributed sequentially from bottom to top.

[0010] As a further preferred embodiment of the present technical solution, a connecting groove connecting the No. 1 mounting groove and the No. 2 mounting groove is further provided in the filter cartridge, and the upper and lower ends of the connecting groove are respectively connected to the ventilation pipe and the air inlet pipe.

[0011] As a further preferred embodiment of the present technical solution, the diameter of the filter cartridge is smaller than the diameters of the coarse filter element and the fine filter element.

[0012] The utility model provides a natural gas liquefaction device with a filtering structure, which has the following beneficial effects:

[0013] The utility model performs double filtration of natural gas through the coarse filter element and the fine filter element to ensure better quality of the subsequent natural gas after liquefaction, and when installing the coarse filter element and the fine filter element, it only needs to be inserted into the No. 1 installation groove and the No. 2 installation groove on the filter cartridge, and then the limit plates on both sides of the No. 1 installation groove and the No. 2 installation groove are moved to make the limit plates rest against the outer walls of both sides of the coarse filter element and the fine filter element, so that the installation and fixation can be quickly completed. When disassembling, it is only necessary to move the limit plates in the direction. The disassembly and assembly method of the filter structure is simple and convenient, which can greatly facilitate the staff to replace and clean the filter components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the disassembly of the overall structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the disassembly of the filter cartridge in the utility model;

[0018] In the figure: 1. Natural gas liquefier; 2. Air inlet interface; 3. Sleeve; 4. Mounting plate; 5. Air inlet pipe; 6. Filter cartridge; 7. Ventilation pipe; 8. Limit plate; 9. Guide rail; 10. Guide plate; 11. Coarse filter element; 12. Fine filter element; 13. Sealing plate; 14. Slot; 15. No. 1 mounting slot; 16. No. 2 mounting slot; 17. Connecting slot. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a natural gas liquefaction device with a filtering structure includes a natural gas liquefier 1 and a filter cartridge 6. An air inlet interface 2 is fixedly installed on the upper end of the natural gas liquefier 1. A filter cartridge 6 is arranged on the side of the natural gas liquefier 1. The filter cartridge 6 is fixedly connected to the natural gas liquefier 1 through a fixing mechanism. The upper end of the filter cartridge 6 is connected to the air inlet interface 2 through a connection. A first mounting groove 15 and a second mounting groove 16 are provided inside the filter cartridge 6. A coarse filter element 11 and a fine filter element 11 are slidably inserted into the first mounting groove 15 and the second mounting groove 16, respectively. 12. A limiting mechanism acting on the coarse filter element 11 and the fine filter element 12 is provided on the filter cartridge 6. The limiting mechanism consists of two limiting components, and the two limiting components are symmetrically distributed on both sides of the No. 2 mounting groove 16 (the No. 2 mounting groove 16 is described here as an example). The limiting component consists of a limiting plate 8, a guide rail 9 and a guide plate 10. The two guide rails 9 are fixedly connected to the outer wall of the filter cartridge 6 and are symmetrically distributed on the upper and lower sides of the No. 2 mounting groove 16. The limiting plate 8 is an arc-shaped plate, and the upper and lower sides of the limiting plate 8 are respectively fixedly connected with guide plates 10 that are slidably fitted with the guide rails 9.

[0021] The opening positions of the No. 1 installation groove 15 and the No. 2 installation groove 16 are both provided with a clamping groove 14 , and the outer walls of the coarse filter element 11 and the fine filter element 12 are both fixedly connected with a sealing plate 13 that slidably fits with the clamping groove 14 .

[0022] When the coarse filter element 11 and the fine filter element 12 are installed in the No. 1 installation groove 15 and the No. 2 installation groove 16 , the sealing plate 13 and the clamping groove 14 will seal the edge positions of the No. 1 installation groove 15 and the No. 2 installation groove 16 to prevent leakage of natural gas.

[0023] The fixing mechanism is composed of a sleeve 3 and a mounting plate 4. The sleeve 3 is sleeved on the outer surface of the natural gas liquefier 1 and fixedly connected to the natural gas liquefier 1. The mounting plate 4 is fixedly connected to the side wall of the sleeve 3. The upper end of the mounting plate 4 is fixedly connected to the filter cartridge 6.

[0024] The filter cartridge 6 can be fixed to the side of the natural gas liquefier 1 by a fixing mechanism, so as to facilitate gas transmission between the two components.

[0025] The bottom of the filter cartridge 6 is connected to an air inlet pipe 5 , and the other end of the air inlet pipe 5 slides through the mounting plate 4 and is connected to a natural gas source.

[0026] The first installation groove 15 and the second installation groove 16 are distributed in sequence from bottom to top.

[0027] Such an arrangement can ensure that the natural gas passes through the coarse filter element 11 and the fine filter element 12 in sequence, thereby completing the coarse screening and fine screening processes.

[0028] A connecting groove 17 connecting the first installation groove 15 and the second installation groove 16 is also provided in the filter cartridge 6 , and the upper and lower ends of the connecting groove 17 are connected to the ventilation pipe 7 and the air inlet pipe 5 respectively.

[0029] The diameter of the filter cartridge 6 is smaller than the diameters of the coarse filter element 11 and the fine filter element 12 .

[0030] Such an arrangement can ensure that both the upper and lower sides of the coarse filter element 11 and the fine filter element 12 can be limited.

[0031] The utility model provides a natural gas liquefaction device with a filtering structure, and the specific working principle is as follows:

[0032] When in use, natural gas is introduced into the filter cartridge 6 through the air inlet pipe 5, and the natural gas is double-filtered by the coarse filter element 11 and the fine filter element 12. The filtered natural gas will enter the natural gas liquefier 1 through the ventilation pipe 7 for liquefaction. When installing, the coarse filter element 11 and the fine filter element 12 only need to be inserted into the No. 1 installation groove 15 and the No. 2 installation groove 16 on the filter cartridge 6, and then the limiting plates 8 located on both sides of the No. 1 installation groove 15 and the No. 2 installation groove 16 are moved, so that the limiting plates 8 are against the outer walls of the coarse filter element 11 and the fine filter element 12 on both sides, and the installation and fixing can be quickly completed. After installation, due to the fit between the sealing plate 13 and the card groove 14, the sealing of the edge positions of the No. 1 installation groove 15 and the No. 2 installation groove 16 can be guaranteed. When disassembling, it is only necessary to move the limiting plate 8 in the direction. The disassembly and assembly method of the filter structure is simple and convenient, which can greatly facilitate the staff to replace and clean the filter components.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A natural gas liquefaction device with a filtering structure, comprising a natural gas liquefier (1) and a filter cartridge (6), characterized in that: An air inlet interface (2) is fixedly mounted on the upper end of the natural gas liquefier (1), a filter cartridge (6) is arranged on the side of the natural gas liquefier (1), the filter cartridge (6) is fixedly connected to the natural gas liquefier (1) via a fixing mechanism, the upper end of the filter cartridge (6) is connected to the air inlet interface (2) via a connection, a first installation groove (15) and a second installation groove (16) are arranged inside the filter cartridge (6), a coarse filter element (11) and a fine filter element (12) are slidably inserted into the first installation groove (15) and the second installation groove (16), respectively, and a filter cartridge (6) is arranged on the filter cartridge (6). A limiting mechanism is provided for acting on the coarse filter element (11) and the fine filter element (12), the limiting mechanism comprising two limiting components, the two limiting components being symmetrically distributed on both sides of the second installation groove (16), the limiting component comprising a limiting plate (8), a guide rail (9) and a guide plate (10), the two guide rails (9) being fixedly connected to the outer wall of the filter cartridge (6) and symmetrically distributed on the upper and lower sides of the second installation groove (16), the limiting plate (8) being an arc-shaped plate, the upper and lower sides of the limiting plate (8) being respectively fixedly connected with guide plates (10) which are slidably engaged with the guide rails (9).

2. A natural gas liquefaction device with a filtering structure according to claim 1, characterized in that: A clamping groove (14) is provided at the opening position of the No. 1 installation groove (15) and the No. 2 installation groove (16), and a sealing plate (13) which is slidably engaged with the clamping groove (14) is fixedly connected to the outer wall of the coarse filter element (11) and the fine filter element (12).

3. The natural gas liquefaction device with a filtering structure according to claim 1, characterized in that: The fixing mechanism is composed of a sleeve (3) and a mounting plate (4); the sleeve (3) is sleeved on the outer surface of the natural gas liquefier (1) and is fixedly connected to the natural gas liquefier (1); the mounting plate (4) is fixedly connected to the side wall of the sleeve (3); and the upper end of the mounting plate (4) is fixedly connected to a filter cartridge (6).

4. The natural gas liquefaction device with a filtering structure according to claim 1, characterized in that: The bottom of the filter cartridge (6) is connected to an air intake pipe (5), and the other end of the air intake pipe (5) slides through the mounting plate (4) and is connected to a natural gas source.

5. The natural gas liquefaction device with a filtering structure according to claim 1, characterized in that: The No. 1 installation groove (15) and the No. 2 installation groove (16) are distributed in sequence from bottom to top.

6. The natural gas liquefaction device with a filtering structure according to claim 1, characterized in that: A connecting groove (17) connecting the first installation groove (15) and the second installation groove (16) is also provided in the filter cartridge (6), and the upper and lower ends of the connecting groove (17) are connected to the ventilation pipe (7) and the air intake pipe (5) respectively.

7. The natural gas liquefaction device with a filtering structure according to claim 6, characterized in that: The diameter of the filter cartridge (6) is smaller than the diameters of the coarse filter element (11) and the fine filter element (12).

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