A drying and dehydrating device for LNG

Abstract

The utility model discloses a drying and dewatering device for LNG relates to LNG drying technical field, and its technical key points include drying container, elevating cleaning mechanism, elevating cleaning mechanism installation connection is on the lower end inboard of drying container, sealing exhaust cover, sealing exhaust cover is installed on the upper end inboard of drying container through screw, drying liquefaction mechanism, drying liquefaction mechanism is fixedly connected in the inboard middle of sealing exhaust cover, drying liquefaction mechanism is connected with external circulating cooling equipment, and the technical effect is that elevating cleaning mechanism can elevate in the lower end inboard of drying container, so that can elevate and clean the water drop of drying liquefaction mechanism periphery liquefaction, and this can effectively maintain the cooling drying effect of whole.

Description

Technical Field

[0001] This utility model relates to the field of LNG drying technology, specifically to a drying and dehydration device for LNG. Background Technology

[0002] LNG drying refers to the process of dehydrating liquefied natural gas. LNG drying requires the use of LNG drying and dehydration equipment.

[0003] The LNG drying and dehydration unit can liquefy the water inside the LNG through the internal condensation pipes of the container. The internal condensation pipes can receive external cold air for condensation. However, the lack of corresponding water droplet cleaning structures around the condensation pipes will cause the water to solidify into ice under prolonged cooling, which will affect the liquefaction and drying process.

[0004] Therefore, we propose a novel drying and dehydration device for LNG to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a drying and dehydration device for LNG, which solves the problem that existing LNG drying and dehydration devices cannot effectively and quickly remove liquefied water droplets.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drying and dehydration device for LNG, comprising:

[0007] Drying container;

[0008] A lifting and cleaning mechanism is installed and connected to the inner side of the lower end of the drying container;

[0009] A sealed vent cover is installed on the inner side of the upper end of the drying container by screws;

[0010] A drying and liquefaction mechanism is fixedly connected to the inner middle of a sealed exhaust cover, and the drying and liquefaction mechanism is connected to an external circulating cooling device;

[0011] The drying and liquefaction mechanism includes a hollow sleeve plate fixed to the inner side of the sealing shell. Cold air connection pipes are fixed to both ends of the hollow sleeve plate, and multiple drying vertical pipes are fixed to the lower end of the hollow sleeve plate. A lifting and cleaning mechanism is sleeved around the periphery of the drying vertical pipes.

[0012] Preferably, the drying container includes a conical tank shell, a bottom connecting seat fixedly connected to the lower end of the conical tank shell, a lifting and cleaning mechanism installed inside the bottom connecting seat, a draining mechanism fixedly connected through the lower end of the conical tank shell, a drying cavity opened inside the conical tank shell, a cap mounting groove opened through the upper part of the drying cavity and the conical tank shell, an air inlet valve pipe fixedly connected through the upper right side of the conical tank shell, the air inlet valve pipe being connected to the LNG gas transmission pipe, and a sealing exhaust cap installed on the conical tank shell through the cap mounting groove.

[0013] Preferably, the draining mechanism includes a drain pipe that passes through and is fixed to the outer shell of the conical tank, an electromagnetic valve is installed on the inner side of the drain pipe, and the drain pipe is connected to an external collection pipe.

[0014] Preferably, the sealing vent cover includes a sealing cover shell mounted on the conical tank shell by screws. A tank body partition plate is fixedly connected to the lower left side of the sealing cover shell. A venting slot is opened on the lower inner side of the tank body partition plate. The tank body partition plate separates and blocks the interior of the conical tank shell. A venting bend is fixedly connected through the left inner side of the sealing cover shell. The venting bend is connected to the LNG venting pipe. A drying liquefaction mechanism is installed on the inner side of the sealing cover shell.

[0015] Preferably, the lifting and cleaning mechanism includes a first electric telescopic cylinder, which is mounted on the bottom connecting seat by screws on the screw mounting plate. The telescopic rod of the first electric telescopic cylinder passes through the bottom connecting seat and is fixed to a movable scraper. The inner side of the movable scraper is provided with a vertical pipe sleeve hole corresponding to the drying vertical pipe.

[0016] Preferably, the movable scraper is fitted inside the conical tank shell.

[0017] Preferably, there are two cold air connection pipes, which are a cold air inlet pipe and a cold air outlet pipe.

[0018] Compared with the prior art, this utility model provides a drying and dehydration device for LNG, which has the following beneficial effects:

[0019] 1. The lifting and cleaning mechanism of this utility model can be lifted and lowered inside the lower end of the drying container, so as to lift and lower to clean the liquefied water droplets around the drying liquefaction mechanism, thus effectively maintaining the overall cooling and drying effect.

[0020] 2. This utility model features a lifting and cleaning mechanism that allows for lifting and cleaning. The first electric telescopic cylinder of the lifting and cleaning mechanism can change the height of the movable scraper when it extends or retracts. The inner side of the movable scraper has a vertical tube sleeve hole corresponding to the drying vertical tube. The movable scraper can be fitted onto the drying vertical tube through the vertical tube sleeve hole, so that the liquefied water droplets on the outer wall of the drying vertical tube can be scraped off and cleaned by the lifting and lowering of the movable scraper, thus effectively maintaining the overall cooling and drying effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the combined structure of the sealing exhaust cover and the drying liquefaction mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the combined structure of the drying container and the lifting and cleaning mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the lifting and cleaning mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the liquid discharge mechanism of this utility model.

[0026] In the picture:

[0027] 1. Inlet valve pipe; 2. First electric telescopic cylinder; 21. Movable scraper; 22. Screw mounting plate; 3. Exhaust bend; 4. Hollow sleeve plate; 41. Cold air connection pipe; 42. Drying vertical pipe; 421. Vertical pipe sleeve hole; 5. Sealing shell; 51. Tank body partition plate; 52. Exhaust groove hole; 6. Conical tank shell; 61. Drain pipe; 62. Drying cavity; 63. Sealing mounting groove; 64. Bottom connecting seat; 65. Solenoid valve. Detailed Implementation

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example 1

[0029] This embodiment provides a technical solution: a drying and dehydration device for LNG, such as... Figures 1-5 As shown, it includes a drying container, a lifting and cleaning mechanism, a sealed exhaust cover, and a drying and liquefaction mechanism.

[0030] The lifting and cleaning mechanism is installed on the inner side of the lower end of the drying container. The lifting and cleaning mechanism can be raised and lowered on the inner side of the lower end of the drying container to clean water droplets. The sealing vent cover is installed on the inner side of the upper end of the drying container with screws. The sealing vent cover is connected to the dried LNG inside the drying container. The drying and liquefaction mechanism is fixed in the middle of the inner side of the sealing vent cover. The drying and liquefaction mechanism can be installed and placed accordingly through the sealing vent cover. The drying and liquefaction mechanism is connected to the external circulating cooling equipment. The drying and liquefaction mechanism can receive external cold air for drying.

[0031] The drying container includes a conical tank shell 6, with a bottom connecting seat 64 fixedly connected to the lower end of the conical tank shell 6. The conical tank shell 6 can be installed accordingly via the bottom connecting seat 64. A lifting and cleaning mechanism is installed inside the bottom connecting seat 64, which can be installed on the bottom connecting seat 64 for lifting and cleaning. A draining mechanism is fixedly connected through the lower end of the conical tank shell 6, which can discharge the liquid collected inside the conical tank shell 6 during cleaning. A drying cavity 62 is opened inside the conical tank shell 6, through which the conical tank shell 6... The area allows for the drying of LNG inside the drying chamber 62. A sealing installation groove 63 is provided above the conical tank shell 6, which allows for limited installation. A sealing exhaust cover is installed on the conical tank shell 6 through the sealing installation groove 63, so that the sealing exhaust cover can be installed to seal and block, and the dried LNG can be discharged. An air inlet valve pipe 1 is fixedly connected to the upper right side of the conical tank shell 6. The air inlet valve pipe 1 is connected to the LNG transmission pipe, so that the air inlet valve pipe 1 can be used to receive and transport LNG.

[0032] The draining mechanism includes a drain pipe 61 that is fixed to the conical tank shell 6. The drain pipe 61 can receive the liquid collected inside the conical tank shell 6. A solenoid valve 65 is installed on the inner side of the drain pipe 61. The drain pipe 61 discharges liquid by opening and closing the solenoid valve 65. The drain pipe 61 is connected to an external collection pipe, so that it can be collected at the designated location, thereby avoiding pollution of the external environment.

[0033] like Figures 1-4As shown, the lifting and cleaning mechanism includes a first electric telescopic cylinder 2. The telescopic rod of the first electric telescopic cylinder 2 can extend and retract. The first electric telescopic cylinder 2 is installed on the bottom connecting seat 64 by screws on the screw mounting plate 22. The first electric telescopic cylinder 2 can be installed accordingly. The telescopic rod of the first electric telescopic cylinder 2 passes through the bottom connecting seat 64 and is fixedly connected to a movable scraper 21. When the telescopic rod of the first electric telescopic cylinder 2 extends and retracts, it can change the height position of the movable scraper 21. The inner side of the movable scraper 21 is provided with a vertical tube sleeve hole 421 corresponding to the drying vertical tube 42. The movable scraper 21 can be sleeved on the drying vertical tube 42 through the vertical tube sleeve hole 421. Thus, the liquefied water droplets on the outer wall of the drying vertical tube 42 can be scraped and cleaned by the lifting and lowering of the movable scraper 21, which effectively maintains the overall cooling and drying effect.

[0034] The movable scraper 21 is fitted inside the conical tank shell 6, allowing it to be positioned and moved.

[0035] The drying and liquefaction mechanism includes a hollow sleeve plate 4 fixed inside the cap shell 5. The hollow sleeve plate 4 can be placed stably. Cold air connection pipes 41 are fixed through both ends of the hollow sleeve plate 4. The hollow sleeve plate 4 receives and discharges drying cold air through the cold air connection pipes 41. Multiple drying vertical pipes 42 are fixed through the lower end of the hollow sleeve plate 4. The cold air inside the hollow sleeve plate 4 can be diverted to the drying vertical pipes 42, so that the drying vertical pipes 42 can be cooled and the water in the LNG can be dried and liquefied. A lifting and cleaning mechanism is sleeved around the periphery of the drying vertical pipes 42. The liquefied water on the outer wall of the drying vertical pipes 42 can be cleaned by the lifting and cleaning mechanism.

[0036] There are two cold air connection pipes 41, which are cold air inlet pipe and cold air outlet pipe, so that cold air can be circulated and received for cooling and drying.

[0037] During use, the lifting and cleaning mechanism can be raised and lowered inside the lower end of the drying container to clean the liquefied water droplets around the drying and liquefaction mechanism. The sealed exhaust cover allows the dried LNG inside the drying container to be discharged. The drying and liquefaction mechanism can be installed and placed accordingly through the sealed exhaust cover, so that the lower end of the drying and liquefaction mechanism can be positioned inside the drying container to cool and dry the LNG. The drying and liquefaction mechanism is connected to an external circulating cooling device, and can receive external cold air for drying. Example 2

[0038] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figures 1-3As shown, to further better realize this utility model, the following arrangement is specifically adopted: the sealing exhaust cover includes a sealing cover 5 that is installed on the conical tank shell 6 by screws. The sealing cover 5 can close and block the upper part of the conical tank shell 6. A tank body partition plate 51 is fixedly connected to the lower left side of the sealing cover 5. The sealing cover 5 can separate the internal area of ​​the conical tank shell 6 through the tank body partition plate 51. The right side of the inside of the conical tank shell 6 is the drying area, and the left side of the inside of the conical tank shell 6 is the drying discharge area. An exhaust is provided on the lower inner side of the tank body partition plate 51. The tank body partition plate 51 can transport LNG from the drying area to the drying discharge area through the vent vent 52. The tank body partition plate 51 separates and blocks inside the conical tank shell 6, thus effectively separating and blocking. The vent bend 3 is fixedly connected to the inner side of the left end of the cap shell 5. LNG in the drying discharge area can be discharged through the vent bend 3. The vent bend 3 is connected to the LNG vent pipe, so that the discharge and reception can be correspondingly arranged. A drying liquefaction mechanism is installed on the inner side of the cap shell 5, and the drying liquefaction mechanism is correspondingly installed on the cap shell 5.

[0039] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A drying and dehydration apparatus for LNG, characterized in that, include: Drying container; A lifting and cleaning mechanism is installed and connected to the inner side of the lower end of the drying container; A sealed vent cover is installed on the inner side of the upper end of the drying container by screws; A drying and liquefaction mechanism is fixedly connected to the inner middle of a sealed exhaust cover, and the drying and liquefaction mechanism is connected to an external circulating cooling device; The drying and liquefaction mechanism includes a hollow sleeve plate (4) fixed inside the cap shell (5), with cold air connecting pipes (41) connected through both ends of the hollow sleeve plate (4), and multiple drying vertical pipes (42) connected through the lower end of the hollow sleeve plate (4), with a lifting and cleaning mechanism sleeved around the periphery of the drying vertical pipes (42).

2. The drying and dehydration apparatus for LNG according to claim 1, characterized in that: The drying container includes a conical tank shell (6), a bottom connecting seat (64) is fixedly connected to the lower end of the conical tank shell (6), a lifting and cleaning mechanism is installed on the inner side of the bottom connecting seat (64), a draining mechanism is fixedly connected to the lower end of the conical tank shell (6), a drying cavity (62) is opened inside the conical tank shell (6), a cap installation groove (63) is opened above the drying cavity (62) and through the conical tank shell (6), an air inlet valve pipe (1) is fixedly connected to the upper right side of the conical tank shell (6), the air inlet valve pipe (1) is connected to the LNG gas transmission pipe, and a sealed exhaust cap is installed on the conical tank shell (6) through the cap installation groove (63).

3. A drying and dehydration apparatus for LNG according to claim 2, characterized in that: The draining mechanism includes a drain pipe (61) that is fixed to the outer shell (6) of the conical tank. A solenoid valve (65) is installed on the inner side of the drain pipe (61). The drain pipe (61) is connected to an external collection pipe.

4. A drying and dehydration apparatus for LNG according to claim 1 or 2, characterized in that: The sealed exhaust cover includes a cover shell (5) that is installed on the conical tank shell (6) by screws. A tank body partition plate (51) is fixedly connected to the lower left side of the cover shell (5). An exhaust slot (52) is opened on the lower inner side of the tank body partition plate (51). The tank body partition plate (51) separates and blocks the inside of the conical tank shell (6). An exhaust bend (3) is fixedly connected through the left inner side of the cover shell (5). The exhaust bend (3) is connected to the LNG exhaust pipe. A drying liquefaction mechanism is installed on the inner side of the cover shell (5).

5. A drying and dehydration apparatus for LNG according to claim 1, characterized in that: The lifting and cleaning mechanism includes a first electric telescopic cylinder (2), which is mounted on the bottom connecting seat (64) by screws on the screw mounting plate (22). The telescopic rod of the first electric telescopic cylinder (2) passes through the bottom connecting seat (64) and is fixed to a movable scraper (21). The inner side of the movable scraper (21) is provided with a vertical tube sleeve hole (421) corresponding to the drying vertical tube (42).

6. A drying and dehydration apparatus for LNG according to claim 5, characterized in that: The movable scraper (21) is fitted inside the conical tank shell (6).

7. A drying and dehydration apparatus for LNG according to claim 1, characterized in that: There are two cold air connection pipes (41), which are cold air inlet pipe and cold air outlet pipe.

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