Drying tower

Abstract

The utility model discloses a drying tower which comprises a barrel body filled with filler, an outlet / inlet pipe group with a filter cartridge is arranged at the upper part of the barrel body, and an inlet / outlet pipe group with a filter cartridge is arranged at the lower part of the barrel body; and the inlet / outlet pipe group and the outlet / inlet pipe group are matched to realize lower-in and upper-out or upper-in and lower-out of materials of the drying tower. According to the utility model, the feed port is improved, so that not only can the product purity be improved and the service life of a catalyst be prolonged, but also the problems of shutdown cleaning or filter component replacement due to blockage of a catalyst filter component can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drying device, specifically a drying tower. BACKGROUND

[0002] The mercury and water removal tower equipment matched with the natural gas liquefaction skid-mounted device is caused by factors such as operation failure, unstable stage of device opening and stopping operation, liquid carrying of gas into the tower, unstable gas inlet pressure, shortens the service life of catalyst in the tower and reduces the purity of dry gas, and the dry gas does not reach the standard, so the catalyst is replaced.

[0003] Meanwhile, the mercury and water removal tower equipment has high requirements for the state of inlet medium, standard operation and stable operation of the device, and the catalyst is invalid due to device fluctuation, operation failure, liquid carrying of gas and other conditions, which increases the maintenance and operation cost, shortens the operation cycle of the device, and makes the dry gas purification unstable, which increases the debugging difficulty of the subsequent operation unit and affects the normal operation of the whole device. INVENTION CONTENTS

[0004] Therefore, in order to overcome the above-mentioned defects, the utility model provides a drying tower, which improves the product purity and prolongs the service life of the catalyst by improving the feed inlet, and reduces the problem of filter part blockage, shutdown cleaning or replacement of the filter part.

[0005] Specifically, a drying tower comprises a cylinder filled with filler, an outlet / inlet pipe group with a filter cylinder is arranged at the upper part of the cylinder, and an inlet / outlet pipe group with a filter cylinder is arranged at the lower part of the cylinder.

[0006] The inlet / outlet pipe group and the outlet / inlet pipe group cooperate to realize downward feeding and upward discharging or upward feeding and downward discharging of the drying tower material.

[0007] Optionally, the inlet / outlet pipe group and the outlet / inlet pipe group each comprise a connecting pipe and an elbow.

[0008] One end of the elbow is connected to the connecting pipe, and the other end is an outlet or an inlet.

[0009] The connecting pipe is connected to the head of the cylinder.

[0010] Optionally, the connecting pipe of the inlet / outlet pipe group is connected to the lower head of the cylinder and is provided with a filter cylinder part located in the head.

[0011] Optionally, the connecting pipe of the outlet / inlet pipe group is connected to the upper head of the cylinder and is connected to the elbow at the upper end through a flange; the connecting pipe at the upper part is provided with a filter cylinder part located in the upper head.

[0012] Optionally, a support assembly is installed in the cylinder, and the support assembly is located between the inlet / outlet pipe group and the filler.

[0013] The support assembly comprises, from bottom to top, a support plate, a ring plate, a grid plate and a pressing plate.

[0014] Optionally, the filler is provided with porcelain ball area at the upper and lower ends.

[0015] Optionally, the side of the cylinder is provided with a manhole.

[0016] The utility model has the following beneficial effects:

[0017] The utility model discloses a tower with drying function for removing mercury and water and is used for natural gas liquefaction device, realizes the material's up -in and down -out, also can be down -in and up -out structure through the improvement of the feed, wherein down -in and up -out can prevent the front end liquid from entering the tower, leads to catalyst shortens life and invalidation.

[0018] The utility model is more suitable for skid configuration equipment, and the same processing capacity occupies smaller area by more than 10% of the cylinder diameter. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the local enlarged schematic diagram of support assembly;

[0021] In the drawing: 1, inlet / outlet pipe group; 2, porcelain ball area; 3, support assembly; 4, manhole; 5, cylinder; 6, upper connecting pipe, 7, upper filter cylinder part; 8, bolt; 9, flange; 10, inlet / outlet pipe group; 31, support plate; 32, ring plate; 33, grid plate; 34, pressing plate. DETAILED DESCRIPTION

[0022] The utility model will be described below in detail, and the technical scheme in the embodiment of the utility model is clearly and completely described. Figure 1 The utility model is described in detail, and the technical scheme in the embodiment of the utility model is clearly and completely described.

[0023] As described in the background, the natural gas liquefaction skid-mounted device is equipped with a demercuration and dehydration tower device. Due to the factors such as operation failure, unstable device start-stop operation, etc., the gas entering the tower is liquid-carrying and the gas inlet pressure is unstable, which shortens the service life of the catalyst in the tower and reduces the purity of the dry gas; and the dry gas purity does not meet the standard, which will stop working and replace the catalyst.

[0024] Meanwhile, the demercuration and dehydration tower device has high requirements for the state of the imported medium, standard operation and stable operation of the device. The occurrence of device fluctuations, operation errors, gas liquid-carrying and other conditions causes the catalyst to fail. The increase of maintenance and operation costs, the shortening of the device operation period, the instability of the dry gas purification degree, the increase of the difficulty of debugging of the subsequent operation unit and the influence on the normal operation of the whole device are caused.

[0025] Based on the above problems, the utility model discloses a drying tower, including the cylinder 3, the upper portion of the cylinder 3 is provided with the out / import pipe group 10 of filter cylinder, the lower portion of the cylinder is provided with the import / export pipe group 1 of filter cylinder,

[0026] The import / export pipe group 1 and the out / import pipe group 10 cooperate to realize the lower inlet and upper outlet or the upper inlet and lower outlet of the drying tower material.

[0027] The import / export pipe group 1 and the out / import pipe group 10 all include the pipe connection 6 and the elbow 9.

[0028] One end of the elbow is connected to the pipe connection, and the other end is the outlet or the inlet.

[0029] The pipe connection is connected to the head of the cylinder.

[0030] The above technical features are the demercuration and dehydration tower with drying function used by the natural gas liquefaction device. Through the improvement of the feed, the upper inlet and lower outlet structure of the material can be realized, and the lower inlet and upper outlet structure can also be realized. The lower inlet and upper outlet structure can prevent the liquid from the front end from entering the tower, which causes the catalyst to shorten the service life and fail.

[0031] In order to realize the connection of the material pipe, in an embodiment, the pipe connection of the out / import pipe group 10 is connected to the head of the upper portion of the cylinder, and is connected to the elbow 9 of the upper end through the flange 8. The filter cylinder part 7 located in the upper head is installed in the pipe connection of the upper portion. One end of the pipe connection 6 of the import / export pipe group 1 is connected to the head of the lower portion of the cylinder, and the filter cylinder part 7 located in the lower head is installed in the pipe connection of the lower portion.

[0032] In order to better install the porcelain ball, in an embodiment, a support assembly is installed in the cylinder, and the support assembly is located between the import / export pipe group and the filler. The support assembly includes a support plate 31, a ring plate 32, a grid plate 33 and a pressing plate 35 from bottom to top. Optionally, a wire mesh 34 can be arranged between the grid plate 33 and the pressing plate 35.

[0033] In order to facilitate the maintenance of the cylinder, in an embodiment, the side of the cylinder is provided with a manhole 4.

[0034] In an embodiment, the upper and lower ends of the filler are both porcelain ball areas 2 provided with porcelain balls, and the filler can be a catalyst or / and a molecular sieve. The porcelain balls provided at the inlet and outlet can make the inlet gas uniformly distributed and the catalyst fully act, stabilize the gas flow pressure in the tower, and prevent the filtering components from being easily blocked.

[0035] The above description of disclosed embodiments enables those skilled in the art to make or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drying tower, comprising a cylindrical body filled with packing material, characterized in that: An inlet / outlet pipe assembly with a filter cartridge is provided at the upper part of the cylinder, and an inlet / outlet pipe assembly with a filter cartridge is provided at the lower part of the cylinder. The inlet / outlet pipe assembly and the outlet / inlet pipe assembly work together to achieve bottom-in and top-out or top-in and bottom-out of the material in the drying tower; Both the inlet / outlet pipe assembly and the outlet / inlet pipe assembly include pipe fittings and elbows; One end of the elbow is connected to a pipe, and the other end is either an outlet or an inlet. The connecting pipe is connected to the end cap of the cylinder; The inlet / outlet pipe assembly is connected to the lower end cap of the cylinder and is equipped with a filter cylinder component located inside the end cap; The inlet / outlet pipe assembly is connected to the upper end cap of the cylinder and to the upper bend via a flange; a filter cartridge component located inside the upper end cap is installed on the upper pipe assembly. A support assembly is installed inside the cylinder, and the support assembly is located between the inlet / outlet pipe assembly and the packing. The support assembly, from bottom to top, includes a support plate, a ring plate, a grid plate, and a pressure plate.

2. The drying tower according to claim 1, characterized in that: Both the upper and lower ends of the packing are ceramic ball areas where ceramic balls are installed.

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