LNG (Liquefied Natural Gas) pump pool with impurity separation function

Abstract

The utility model discloses an LNG (liquefied natural gas) pump pool with an impurity separation function, which relates to the technical field of LNG pump pools and comprises an LNG pump pool body, a liquid inlet pipe is fixedly mounted on the surface of the left side of the LNG pump pool body, a filter plate is fixedly mounted on the surface of the inner wall of the liquid inlet pipe, and a half-section lifting opening is formed in the local top surface of the LNG pump pool body. A silt storage pipe is arranged on the surface of the inner wall of the LNG pump pool body in an attached mode, the silt storage pipe is driven by the lifting mechanism to penetrate through the half-section lifting opening to ascend into the first mounting box, the two ends of the silt storage pipe are communicated with the desilting opening, and then the scraping block and the brushing mechanism are driven by the transverse moving mechanism to penetrate through the right desilting opening to move into the silt storage pipe. According to the automatic dredging device, silt impurities in the silt storage pipe are cleaned, pushed into the silt suction mechanism through the left dredging opening and finally sucked and discharged through the silt suction mechanism, manual cleaning is not needed, the dredging work can be rapidly, efficiently and automatically completed, any structure does not need to be disassembled, the service life of the structure is greatly prolonged, and long-term stable and reliable work of a pump pool is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of LNG pump pools, in particular to an LNG pump pool with an impurity separation function. Background Art

[0002] LNG (Liquefied Natural Gas) is a form of natural gas that is conducive to long-distance transmission and recovery of natural gas, and effectively reduces the storage cost of natural gas. A low-temperature liquid pump pool is required in the liquefied natural gas infusion process. It is a key equipment for achieving normal gas transmission operations. The LNG pump pool generates centrifugal force by driving the liquid to rotate through the pump, and uses the centrifugal force to continuously discharge the liquid from the center of the impeller to the surrounding areas to complete the transmission of LNG. The safe operation of the LNG pump pool and the rear vaporizer has extremely high requirements on the purity of liquefied natural gas. If impurities enter the LNG pump pool and the rear vaporizer and cause blockage, it will threaten the safe operation of the entire LNG station. Therefore, it is necessary to fully filter the LNG before it enters the pump pool.

[0003] The filtration of LNG in LNG stations mainly relies on the installation of a filtration structure at the liquid inlet of the pump pool to ensure the purity of the LNG entering the pump pool. However, after long-term use, the filtration structure at the liquid inlet of the pump pool will become clogged. Currently, silt removal mainly relies on manual labor, which is time-consuming and labor-intensive, and requires the disassembly of part of the structure to expose the filtration structure for cleaning. Repeated disassembly can easily lead to structural damage, affecting the normal operation of the pump pool.

[0004] For this purpose, an LNG pump pool with impurity separation function is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology. The utility model provides an LNG pump pool with impurity separation function.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] An LNG pump pool with impurity separation function comprises an LNG pump pool body, a liquid inlet pipe is fixedly installed on the left surface of the LNG pump pool body, a filter plate is fixedly installed on the inner wall surface of the liquid inlet pipe, a semi-sectioned lifting port is opened on the local top surface of the LNG pump pool body, a silt storage pipe is fitted on the inner wall surface of the LNG pump pool body, and the semi-sectioned lifting port and the silt storage pipe are both arranged in contact with the left side of the filter plate, a first installation box is fixedly installed on the top of the LNG pump pool body, the first installation box is arranged directly above the semi-sectioned lifting port, a second installation box is fixedly installed on the right side of the first installation box, a lifting mechanism for driving the silt storage pipe to rise and fall is arranged inside the first installation box, silt removal ports are opened on the left and right side walls of the first installation box, a transverse movement mechanism is arranged inside the second installation box, a scraper block is fixedly installed on the surface of the transverse movement mechanism, a brushing mechanism is arranged on the left side of the scraper block, the scraper block and the brushing mechanism are used to pass through the silt removal port into the silt storage pipe to silt the silt storage pipe, a silt suction mechanism is fixedly installed on the left side of the first installation box, a solenoid valve is arranged on the surface of the liquid inlet pipe, and the solenoid valve is arranged on the left side of the semi-sectioned lifting port.

[0008] Furthermore, the lifting mechanism includes a lifting slot and a first motor, the lifting slot is opened on the left and right sides of the inner wall of the first installation box and is located above the dredging port, the first motor is fixedly installed on the top surface of the first installation box, and the output end of the first motor is fixedly connected with a longitudinal threaded rod, and the longitudinal threaded rod is rotatably installed on the inner wall surface of the lifting slot on one side, and a lifting slide is slidably installed between the inner wall surfaces of the lifting slot on both sides, the lifting slide is threadedly installed on the surface of the longitudinal threaded rod, and a connecting plate is fixedly installed on the bottom surface of the lifting slide, and the silt storage pipe is fixedly installed on the bottom surface of the connecting plate.

[0009] Furthermore, the transverse movement mechanism includes a transverse movement slot and a second motor, the transverse movement slot is opened on the top surface of the inner wall of the second installation box, the second motor is fixedly installed on the right side of the second installation box, the output end of the second motor is fixedly connected with a transverse threaded rod, the transverse threaded rod is rotatably installed on the inner wall surface of the transverse movement slot, an L-shaped connecting rod is slidably installed on the inner wall surface of the transverse movement slot, the L-shaped connecting rod is threadedly installed on the surface of the transverse threaded rod, the transverse portion of the L-shaped connecting rod is arranged toward the first installation box, and the scraper block is fixedly installed on the left end surface of the transverse portion of the L-shaped connecting rod.

[0010] Furthermore, the brushing mechanism includes a third motor, which is fixedly installed inside the scraper block. The output end of the third motor is fixedly connected to a rotating shaft, a rotating block is fixedly installed on the left side of the rotating shaft, and a brush is fixedly installed on the side of the rotating block.

[0011] Furthermore, when the silt storage pipe is at the highest point, its left and right ends are aligned with the silt cleaning port, the inner diameter of the silt cleaning port is not less than the inner diameter of the silt storage pipe and not greater than the outer diameter of the silt storage pipe, the scraper block is flush with the silt cleaning port, the diameter of the scraper block is equal to the inner diameter of the silt storage pipe, and the outer diameter of the rotating block is equal to the inner diameter of the silt storage pipe.

[0012] Furthermore, the sludge suction mechanism includes a sludge suction head, which is fixedly installed on the left side of the first installation box, and the sludge suction head cover is arranged on the surface of the left silt removal port. The left end of the sludge suction head is fixedly connected to a sludge discharge pipe, and a sewage pump is arranged on the surface of the sludge discharge pipe.

[0013] The beneficial effects of the utility model are as follows:

[0014] When dredging is required, after closing the solenoid valve, the silt storage pipe is driven by the lifting mechanism to pass through the half-cut lifting port and rise to the first installation box, so that the two ends of the silt storage pipe are connected with the silt cleaning port, and then the scraper and brushing mechanism are driven by the transverse movement mechanism to pass through the right silt cleaning port to move into the silt storage pipe, and the silted impurities in the silt storage pipe are cleaned and pushed into the silt suction mechanism through the left silt cleaning port, and finally sucked out by the silt suction mechanism. No manual cleaning is required, and the dredging work can be completed quickly, efficiently and automatically without dismantling any structure, which greatly improves the service life of the structure and ensures the long-term stable and reliable operation of the pump pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a front cross-sectional view of the three-dimensional structure of the liquid inlet pipe of the utility model;

[0017] Figure 3 This utility model Figure 2 A magnified view of the structure of the middle part A;

[0018] Figure 4 It is a right side cross-sectional view of the three-dimensional structure of the liquid inlet pipe of the utility model;

[0019] Figure numerals: 1. LNG pump pool body; 2. liquid inlet pipe; 3. filter plate; 4. half-cut lifting port; 5. silt storage pipe; 6. first installation box; 7. lifting mechanism; 701. lifting chute; 702. first motor; 703. longitudinal threaded rod; 704. lifting slide plate; 705. connecting plate; 8. second installation box; 9. transverse movement mechanism; 901. transverse movement chute; 902. second motor; 903. transverse threaded rod; 904. L-shaped connecting rod; 10. scraper block; 11. brushing mechanism; 111. third motor; 112. rotating shaft; 113. rotating block; 114. brush; 12. silt suction mechanism; 121. silt suction head; 122. silt discharge pipe; 123. sewage pump; 13. solenoid valve; 14. silt removal port. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figures 1 to 4As shown, an LNG pump pool with impurity separation function includes an LNG pump pool body 1, a liquid inlet pipe 2 is fixedly installed on the left surface of the LNG pump pool body 1, a filter plate 3 is fixedly installed on the inner wall surface of the liquid inlet pipe 2, a semi-sectioned lifting port 4 is opened on the local top surface of the LNG pump pool body 1, a silt storage pipe 5 is fitted on the inner wall surface of the LNG pump pool body 1, the semi-sectioned lifting port 4 and the silt storage pipe 5 are both fitted on the left side of the filter plate 3, a first installation box 6 is fixedly installed on the top of the LNG pump pool body 1, the first installation box 6 is arranged directly above the semi-sectioned lifting port 4, and a filter plate 3 is fixedly installed on the right side of the first installation box 6 The second installation box 8 and the first installation box 6 are provided with a lifting mechanism 7 for driving the silt storage pipe 5 to rise and fall. The left and right side walls of the first installation box 6 are provided with silt removal ports 14. The second installation box 8 is provided with a transverse movement mechanism 9. A scraper block 10 is fixedly installed on the surface of the transverse movement mechanism 9. A brushing mechanism 11 is provided on the left side of the scraper block 10. The scraper block 10 and the brushing mechanism 11 are used to pass through the silt removal port 14 to enter the silt storage pipe 5 to silt the silt storage pipe 5. A silt suction mechanism 12 is fixedly installed on the left side of the first installation box 6. A solenoid valve 13 is provided on the surface of the liquid inlet pipe 2. The solenoid valve 13 is arranged on the left side of the half-section lifting port 4.

[0026] More specifically, when the liquefied natural gas enters the LNG pump pool body 1 through the liquid inlet pipe 2, the solenoid valve 13 remains open, and the impurities in the liquefied natural gas are filtered through the filter plate 3. Since the silt storage pipe 5 is arranged to fit the inner surface of the liquid inlet pipe 2 and the left side of the filter plate 3, the filtered impurities will accumulate in the silt storage pipe 5. When silting is required, after closing the solenoid valve 13, the silt storage pipe 5 is driven by the lifting mechanism 7 to pass through the half-cut lifting port 4 and rise to the first installation box 6, so that the two ends of the silt storage pipe 5 are connected with the silt cleaning port 14, and then the scraper block 10 and the brushing mechanism 11 are driven by the transverse movement mechanism 9 to pass through the right silt cleaning port 14 and move into the silt storage pipe 5. The silt impurities in the silt storage pipe 5 are cleaned and pushed into the silt suction mechanism 12 through the left silt removal port 14, and finally sucked out by the silt suction mechanism 12. No manual cleaning is required, and the silt removal work can be completed automatically and quickly and efficiently. There is no need to dismantle any structure, which greatly improves the service life of the structure and ensures the long-term stable and reliable operation of the pump pool. After the silt removal is completed, the transverse mechanism 9 drives the scraper block 10 and the brushing mechanism 11 to reset, and the lifting mechanism 7 drives the silt storage pipe 5 to descend and reset to fit the inner wall surface of the liquid inlet pipe 2, and the solenoid valve 13 is reopened, so that the liquid can continue to be fed into the LNG pump pool body 1 through the liquid inlet pipe 2, while the impurities are filtered out through the filter plate 3.

[0027] The lifting mechanism 7 includes a lifting chute 701 and a first motor 702. The lifting chute 701 is opened on the left and right sides of the inner wall of the first installation box 6 and is located above the silt removal port 14. The first motor 702 is fixedly installed on the top surface of the first installation box 6. The output end of the first motor 702 is fixedly connected with a longitudinal threaded rod 703. The longitudinal threaded rod 703 is rotatably installed on the inner wall surface of the lifting chute 701 on one side. A lifting slide 704 is slidably installed between the inner wall surfaces of the lifting chute 701 on both sides. The lifting slide 704 is threadedly installed on the surface of the longitudinal threaded rod 703. A connecting plate 705 is fixedly installed on the bottom surface of the lifting slide 704, and the silt storage pipe 5 is fixedly installed on the bottom surface of the connecting plate 705.

[0028] Specifically, the output end of the first motor 702 drives the longitudinal threaded rod 703 to rotate, so that the lifting slide 704, which is threadedly installed on the surface of the longitudinal threaded rod 703 and slidably installed on the inner wall surface of the lifting slide 701, is lifted and lowered, and then the connecting plate 705 and the silt storage tube 5 are lifted and lowered through the lifting slide 704, so that the silt storage tube 5 switches its position in the liquid inlet pipe 2 and the first installation box 6.

[0029] The transverse movement mechanism 9 includes a transverse movement slot 901 and a second motor 902. The transverse movement slot 901 is opened on the top surface of the inner wall of the second installation box 8. The second motor 902 is fixedly installed on the right side of the second installation box 8. The output end of the second motor 902 is fixedly connected with a transverse threaded rod 903. The transverse threaded rod 903 is rotatably installed on the inner wall surface of the transverse movement slot 901. An L-shaped connecting rod 904 is slidably installed on the inner wall surface of the transverse movement slot 901. The L-shaped connecting rod 904 is threadedly installed on the surface of the transverse threaded rod 903. The transverse portion of the L-shaped connecting rod 904 is arranged toward the first installation box 6. The scraper block 10 is fixedly installed on the left end surface of the transverse portion of the L-shaped connecting rod 904.

[0030] Specifically, the transverse threaded rod 903 is driven to rotate by the output end of the second motor 902, so that the L-shaped connecting rod 904, which is threadedly installed on the surface of the transverse threaded rod 903 and slidably installed on the inner wall surface of the transverse slide groove 901, moves laterally, and the scraper block 10 and the brushing mechanism 11 are driven to move laterally by the L-shaped connecting rod 904. The morphological and structural characteristics of the L-shaped connecting rod 904 enable the scraper block 10 and the brushing mechanism 11 to smoothly pass through the dredging port 14 and enter the interior of the silt storage pipe 5, thereby cleaning the silt storage pipe 5.

[0031] The brushing mechanism 11 includes a third motor 111, which is fixedly installed inside the scraper block 10. The output end of the third motor 111 is fixedly connected to a rotating shaft 112, a rotating block 113 is fixedly installed on the left side of the rotating shaft 112, and a brush 114 is fixedly installed on the side of the rotating block 113.

[0032] Specifically, after the third motor 111 is turned on, it drives the rotating shaft 112 and the rotating block 113 to rotate, so that the brush 114 fixedly installed on the side of the rotating block 113 rotates in contact with the inner wall side of the silt storage tube 5, and brushes off impurities adhering to the inner wall side of the silt storage tube 5. In conjunction with the synchronous left movement of the scraper block 10 and the brushing mechanism 11, the silt in the silt storage tube 5 can be quickly brushed off and pushed away from the left side of the silt storage tube 5, with higher cleaning efficiency.

[0033] When the silt storage pipe 5 is at the highest point, its left and right ends are aligned with the silt cleaning port 14, the inner diameter of the silt cleaning port 14 is not less than the inner diameter of the silt storage pipe 5 and not greater than the outer diameter of the silt storage pipe 5, the scraper block 10 is flush with the silt cleaning port 14, the diameter of the scraper block 10 is equal to the inner diameter of the silt storage pipe 5, and the outer diameter of the rotating block 113 is equal to the inner diameter of the silt storage pipe 5.

[0034] Specifically, when the silt storage pipe 5 is at the highest point, its left and right ends are aligned with the silt cleaning port 14. By setting the inner diameter of the silt cleaning port 14 to be no larger than the outer diameter of the silt storage pipe 5, it is ensured that the silt storage pipe 5 is closely connected with the silt cleaning port 14, and the discharged silt blockage can completely fall into the silt suction mechanism 12 through the silt cleaning port 14 on the left, and will not fall into the first installation box 6 due to the existence of the gap. By setting the inner diameter of the silt cleaning port 14 to be no smaller than the inner diameter of the silt storage pipe 5, it is ensured that the scraper block 10 and the brushing mechanism 11 can smoothly pass through the silt cleaning port 14 on the right to enter the interior of the silt storage pipe 5, thereby cleaning the silt blockage inside the silt storage pipe 5. The specification setting of the scraper block 10 and the rotating block 113 ensures that the scraper block 10 and the brushing mechanism 11 can closely contact the inner wall side of the silt storage pipe 5, thereby achieving the purpose of efficient cleaning.

[0035] The sludge suction mechanism 12 includes a sludge suction head 121, which is fixedly installed on the left side of the first installation box 6. The sludge suction head 121 is covered on the surface of the left silt removal port 14. The left end of the sludge suction head 121 is fixedly connected to a sludge discharge pipe 122, and a sewage pump 123 is provided on the surface of the sludge discharge pipe 122.

[0036] Specifically, the scraper block 10 and the brushing mechanism 11 push the silt in the silt storage pipe 5 to the left, and the silt falls into the silt suction head 121 through the left end of the silt storage pipe 5 and the silt removal port 14 on the left side. The silt in the silt suction head 121 is sucked out through the silt discharge pipe 122 by the suction action of the sewage pump 123, without the need for manual cleaning, which is more efficient.

[0037] In summary: when silt removal is required, after closing the solenoid valve 13, the silt storage pipe 5 is driven by the lifting mechanism 7 to pass through the half-cut lifting port 4 and rise to the first installation box 6, so that the two ends of the silt storage pipe 5 are connected with the silt removal port 14, and then the scraper block 10 and the brushing mechanism 11 are driven by the transverse movement mechanism 9 to pass through the right silt removal port 14 and move into the silt storage pipe 5, so that the silt impurities in the silt storage pipe 5 are cleaned and pushed into the silt suction mechanism 12 through the left silt removal port 14, and finally sucked out by the silt suction mechanism 12. No manual cleaning is required, and the silt removal work can be completed quickly, efficiently and automatically without dismantling any structure, which greatly improves the service life of the structure and ensures the long-term stable and reliable operation of the pump pool.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An LNG pump pool with impurity separation function, characterized in that: The invention comprises an LNG pump pool body (1), a liquid inlet pipe (2) is fixedly installed on the left side surface of the LNG pump pool body (1), a filter plate (3) is fixedly installed on the inner wall surface of the liquid inlet pipe (2), a semi-sectioned lifting port (4) is opened on the local top surface of the LNG pump pool body (1), a silt storage pipe (5) is arranged in close contact with the inner wall surface of the LNG pump pool body (1), the semi-sectioned lifting port (4) and the silt storage pipe (5) are both arranged in close contact with the left side of the filter plate (3), a first installation box (6) is fixedly installed on the top of the LNG pump pool body (1), the first installation box (6) is arranged directly above the semi-sectioned lifting port (4), a second installation box (8) is fixedly installed on the right side of the first installation box (6), and the first installation box ( 6) is provided with a lifting mechanism (7) for driving the silt storage pipe (5) to rise and fall, the left and right side walls of the first installation box (6) are both provided with silt removal ports (14), the second installation box (8) is provided with a transverse movement mechanism (9), a scraper block (10) is fixedly installed on the surface of the transverse movement mechanism (9), a brushing mechanism (11) is provided on the left side of the scraper block (10), the scraper block (10) and the brushing mechanism (11) are used to pass through the silt removal port (14) into the silt storage pipe (5) to silt the silt storage pipe (5), a silt suction mechanism (12) is fixedly installed on the left side of the first installation box (6), a solenoid valve (13) is provided on the surface of the liquid inlet pipe (2), and the solenoid valve (13) is arranged on the left side of the half-cut lifting port (4).

2. The LNG pump pool with impurity separation function according to claim 1, characterized in that: The lifting mechanism (7) comprises a lifting chute (701) and a first motor (702). The lifting chute (701) is provided on the left and right sides of the inner wall of the first installation box (6) and is located above the silt removal port (14). The first motor (702) is fixedly installed on the top surface of the first installation box (6). The output end of the first motor (702) is fixedly connected with a longitudinal threaded rod (703). The longitudinal threaded rod (703) is rotatably installed on the inner wall surface of the lifting chute (701) on one side. A lifting slide plate (704) is slidably installed between the inner wall surfaces of the lifting chute (701) on both sides. The lifting slide plate (704) is threadedly installed on the surface of the longitudinal threaded rod (703). A connecting plate (705) is fixedly installed on the bottom surface of the lifting slide plate (704). The silt storage pipe (5) is fixedly installed on the bottom surface of the connecting plate (705).

3. The LNG pump pool with impurity separation function according to claim 1, characterized in that: The transverse movement mechanism (9) includes a transverse movement slot (901) and a second motor (902), wherein the transverse movement slot (901) is opened on the top surface of the inner wall of the second installation box (8), and the second motor (902) is fixedly installed on the right side of the second installation box (8). The output end of the second motor (902) is fixedly connected with a transverse threaded rod (903), and the transverse threaded rod (903) is rotatably installed on the inner wall surface of the transverse movement slot (901). An L-shaped connecting rod (904) is slidably installed on the inner wall surface of the transverse movement slot (901), and the L-shaped connecting rod (904) is threadedly installed on the surface of the transverse threaded rod (903). The transverse portion of the L-shaped connecting rod (904) is arranged toward the first installation box (6), and the scraper block (10) is fixedly installed on the left end surface of the transverse portion of the L-shaped connecting rod (904).

4. The LNG pump pool with impurity separation function according to claim 1, characterized in that: The brushing mechanism (11) comprises a third motor (111), the third motor (111) is fixedly mounted inside the scraper block (10), the output end of the third motor (111) is fixedly connected to a rotating shaft (112), a rotating block (113) is fixedly mounted on the left side of the rotating shaft (112), and a brush (114) is fixedly mounted on the side of the rotating block (113).

5. The LNG pump pool with impurity separation function according to claim 4, characterized in that: When the silt storage pipe (5) is at its highest point, its left and right ends are aligned with the silt removal opening (14); the inner diameter of the silt removal opening (14) is not less than the inner diameter of the silt storage pipe (5) and is not greater than the outer diameter of the silt storage pipe (5); the scraper block (10) is flush with the silt removal opening (14); the diameter of the scraper block (10) is equal to the inner diameter of the silt storage pipe (5); and the outer diameter of the rotating block (113) is equal to the inner diameter of the silt storage pipe (5).

6. The LNG pump pool with impurity separation function according to claim 1, characterized in that: The sludge suction mechanism (12) comprises a sludge suction head (121), the sludge suction head (121) is fixedly mounted on the left side of the first mounting box (6), the sludge suction head (121) is covered on the surface of the left silt removal port (14), the left end of the sludge suction head (121) is fixedly connected to a sludge discharge pipe (122), and a sewage discharge pump (123) is provided on the surface of the sludge discharge pipe (122).

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