CN212440583U

CN212440583U - Gas filtering device

Info

Publication number: CN212440583U
Application number: CN202020867925.7U
Authority: CN
Inventors: 严定强
Original assignee: Yueyang Changling Kaimeite Gases Co ltd
Current assignee: Yueyang Changling Kaimeite Gases Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-02-02
Anticipated expiration: 2030-05-19

Abstract

A gas filter is composed of an external cylindrical body, a top cover and a bottom cover, and a spiral gas-liquid separating blade, a ceramic particle filter unit and a ceramic filter drum are installed in a container consisting of said top cover and bottom cover. This gas filtering device can effectively reduce the frequency of changing a plurality of ceramic particles, can put down the extremely little water of size and dust in the gas, and the gas that makes to discharge outside this gas filtering device does not contain water and dust almost.

Description

Gas filtering device

Technical Field

The utility model relates to a gaseous dust removal, concretely relates to gas filtering device.

Background

In many production plants, the gas contains traces of water and dust, which adversely affect the analysis and utilization of the gas, and therefore, the traces of water and dust must be removed from the gas.

A small-sized gas filtering apparatus 200 of the prior art is shown in fig. 2, which has a tub-shaped container 1, a lower wire mesh filtering module 2, a middle wire mesh filtering module 3 and an upper ceramic particle filtering unit 4.

The barrel container 1 has a barrel body 11 and a circular top cover 12. The barrel 11 is screwed with the circular top cover 12, and the circular top cover 12 is hermetically installed on the top end of the barrel 11. A long pipe 121 and a short pipe 122 are hermetically connected to the circular top cover 12. A short pipe 111 is hermetically connected to the bottom wall of the barrel 11.

The lower wire mesh filter assembly 2 has an annular lower seat plate 21, a circular perforated lower support plate 22, an annular upper seat plate 23, a circular perforated upper baffle plate 24 and a plurality of circular stainless steel wires 25. The ring-shaped lower seat plate 21 and the ring-shaped upper seat plate 23 have the same structure. The circular perforated lower support plate 22 is constructed the same as the circular perforated upper baffle 24. The annular lower seat plate 21 and the annular upper seat plate 23 are fixedly connected on the inner wall of the barrel body 11. The circular porous lower supporting plate 22 and the circular porous upper baffle plate 24 are respectively supported on the circular ring-shaped lower seat plate 21 and the circular ring-shaped upper seat plate 23. A plurality of circular stainless steel screens 25 are supported in a stack on the circular perforated lower support plate 22.

Referring to fig. 3, the circular perforated lower support plate 22 or the circular perforated upper baffle plate 24 has a plurality of through holes 221 and a central hole 222.

The lower wire mesh filter assembly 2 is of the same construction as the middle wire mesh filter assembly 3.

The upper ceramic particle filter unit 4 has a plurality of ceramic particles 45 and an annular upper seat plate 23 and a circular porous upper baffle plate 24. A plurality of ceramic particles 45 are layered uniformly over the circular porous upper baffle 24 of the middle wire mesh filter assembly 3.

In operation, the small gas filtering apparatus 200 shown in fig. 2 is operated such that a gas to be analyzed containing a small amount of water and dust passes through the long pipe 121 and flows down into the lower space of the barrel container 1, and then flows upward in the opposite direction into the space where the lower wire mesh filtering unit 2 is located, and contacts the stainless wire mesh 25, and a part of the water and dust is trapped and falls into the bottom of the barrel container 1. The gas to be analyzed continuously rises, and part of water and dust in the gas to be analyzed is gathered by the stainless steel wire net 25 of the middle wire mesh filtering component 3, downwards passes through the stainless steel wire net 25 of the lower wire mesh filtering component 2, and falls into the bottom of the barrel-shaped container 1. The gas to be analyzed continues to rise, and part of the water and dust in the gas to be analyzed is gathered by the plurality of ceramic particles 45 of the upper ceramic particle filtering unit 4, passes downwards through the stainless steel wire net 25 of the middle wire mesh filtering component 3 and the stainless steel wire net 25 of the lower wire mesh filtering component 2, and falls into the bottom of the barrel-shaped container 1. The water and dust falling into the bottom of the barrel-shaped container 1 are discharged outside the barrel-shaped container 1 through the short pipe 111 on the bottom wall of the drum body 11. The gas to be analyzed continues to rise, enters the upper space of the barrel container 1, and is discharged out of the barrel container 1 through the short pipe 122.

In the small-sized gas filtering apparatus 200 shown in fig. 2, the gas to be analyzed containing a trace amount of water and dust is not treated before it is fed upward into the space where the lower wire mesh filter unit 2 is located, and in this case, although the gas to be analyzed contains a trace amount of water and dust, the gaps between the meshes of the stainless wire mesh 25 of the lower wire mesh filter unit 2 and the plurality of ceramic particles 45 are easily clogged, so that the frequency of replacing the stainless wire mesh 25 and the plurality of ceramic particles 45 is high. In addition, the mesh of the stainless steel wire mesh 25 or the gaps between the plurality of ceramic particles 45 are large, and the effect of trapping water and dust contained in the gas to be analyzed is not satisfactory.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the change stainless wire net of solving the gas filtering device existing use and the mesh of a plurality of ceramic particles or the space between a plurality of ceramic particles are all great and the mesh of stainless wire net is higher, the relatively poor technical problem of effect of the moisture that the analysis gas contained and dust is treated to the stamp set.

The utility model provides a gas filtering device, which is characterized in that the device is provided with an outer cylinder body, and a top cover and a bottom cover are respectively connected with the upper end and the lower end of the outer cylinder body in a sealing way; a top end of an inner cylinder body is hermetically connected to the inner surface of the top cover, a circular porous bottom support plate is installed at the bottom end of the inner cylinder body, and a plurality of ceramic particles are layered on the circular porous bottom support plate; the open end of a ceramic core filter barrel is hermetically connected to the inner surface of the top cover, and the ceramic core filter barrel is positioned in the inner cylinder body and above the plurality of ceramic particles; a spiral gas-liquid separation blade is fixedly connected to the outer wall of the inner cylinder, and a certain gap is formed between the outer edge surface of the spiral gas-liquid separation blade and the inner wall surface of the outer cylinder; a float valve is mounted on the bottom cap within the outer cylinder.

The gas filtering device of the utility model, due to the spiral gas-liquid separation blade, the gas to be analyzed entering the gas filtering device firstly rapidly flows downwards under the guide of the spiral gas-liquid separation blade, most of water and dust in the gas to be analyzed are separated from the gas, thus, the gas to be analyzed entering a plurality of ceramic particles is not easy to block the gaps among the ceramic particles any more, and the frequency of replacing the ceramic particles can be effectively reduced; owing to have ceramic core filter vat, treat among the analysis gas that the size is extremely little water and dust can be pounced on and collect, make and arrange the utility model discloses a treat that the analysis gas does not contain water and dust almost outside the gas filtering device.

Drawings

FIG. 1 is a schematic longitudinal sectional view of a gas filtering apparatus according to the present invention;

FIG. 2 is a schematic longitudinal sectional view of a small gas filtering apparatus;

fig. 3 is a schematic view showing the construction of a circular perforated lower support plate or a circular perforated upper baffle in the conventional compact gas filtration apparatus shown in fig. 2.

Detailed Description

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, and features and advantages of the present invention will become more apparent.

Referring to fig. 1, the gas filtering apparatus 100 of the present invention has a cylindrical vessel 5, a spiral gas-liquid separation blade 6, a ceramic particle filtering unit 7, a ceramic core filtering unit 8 and a float valve assembly 9.

The cylindrical container 5 has a cylindrical body 51, a bottom cover 52 and a top cover 53. A short pipe 521 is hermetically connected to the bottom cover 52. The top cover 53 has a central threaded hole therein. The bottom end of the cylinder 51 is screw-fitted with the bottom cap 52, and the bottom cap 52 is sealingly fitted to the bottom end of the cylinder 51. The top end of the cylinder 51 is screwed to the top cover 53, and the top cover 53 is sealingly attached to the top end of the cylinder 51. The upper portion of the cylinder 51 is sealingly connected to a short pipe 511.

The ceramic particle filter unit 7 has a cylindrical body 71, a circular bottom end seat plate 72, a circular perforated bottom support plate 73, a circular lower seat plate 74, a circular perforated lower support plate 75 and a plurality of ceramic particles 76. The annular bottom end seat plate 72 is fixedly connected to the bottom end of the cylinder 71. A circular lower seat plate 74 is fixedly attached to the lower inner wall of the cylinder 71. A circular perforated bottom support plate 73 is supported in the circular bottom end seat plate 72. A circular perforated lower support plate 75 is supported on and secured to the circular lower seat plate 74 by a plurality of screws. A plurality of ceramic particles 76 are layered uniformly on the circular porous bottom support plate 73. The circular perforated bottom support plate 73 and the circular perforated lower support plate 75 have substantially the same configuration as the circular perforated lower support plate 22 shown in fig. 3, but may lack the central aperture 222.

The upper end of the cylindrical body 71 of the ceramic particle filtering unit 7 is sealingly attached to the inner surface of the top cover 53 of the cylindrical vessel 5.

The spiral gas-liquid separation blade 6 is fixedly attached to the outer wall of the cylinder 71 of the ceramic particle filtration unit 7. The outer peripheral surface of the spiral gas-liquid separating blade 6 has a certain clearance from the inner wall of the cylindrical body 51 of the cylindrical vessel 5.

The ceramic core filter unit 8 has a cylindrical ceramic filter core 81 and a top cover 82. The walls of the cylindrical ceramic filter element 81 have a microporous structure, which is well known, and the pores of which are much smaller than the pores of the stainless steel mesh and the gaps between the plurality of ceramic particles. A short pipe 821 is sealingly connected to the top cover 82. The upper end of the cylindrical ceramic filter element 81 is sealingly attached to the inner surface of the top cover 82. The top lid 82 has a male thread on its outer circumferential surface, and the ceramic core filter unit 8 is sealingly mounted on the top lid 53 of the cylindrical vessel 5 by fitting with a central threaded hole in the top lid 53 of the cylindrical vessel 5, and the cylindrical ceramic filter core 81 is located in the upper space of the cylindrical body 71 of the ceramic particle filter unit 7 above the plurality of ceramic particles 76.

The float valve assembly 9 has a cylinder 91, a top cover 92 and a float valve 93. The cylindrical body 91 has a plurality of through holes 911 formed in the cylindrical wall. The lower end of the cylindrical body 91 is sealingly attached to the inner surface of the lower cap 52 of the cylindrical container 5. A ball float valve 93 is mounted on the upper end of the short pipe 521 on the bottom cover 52. The top end of the cylinder 91 is screwed to the top cover 92, and the top cover 92 is sealingly attached to the top end of the cylinder 91. A float valve 93 is located within the cylinder 91.

The gas filtering apparatus 100 of the present invention shown in fig. 1 is operated to allow a gas to be analyzed, which contains a small amount of water and dust, to enter the cylindrical container 5 through the short pipe 511, and then to rapidly flow downward in a spiral manner under the guide of the spiral gas-liquid separation blade 6 in the annular space between the inner wall of the cylindrical body 51 of the cylindrical container 5 and the outer wall of the cylindrical body 71 of the ceramic particle filtering unit 7, wherein most of the water and dust having a large specific gravity are separated from the gas having a small specific gravity under the combined action of gravity and centrifugal force, and are thrown onto the inner wall of the cylindrical body 51 of the cylindrical container 5, and then flow downward to the bottom of the cylindrical container 5 along the inner wall, and then enter the cylindrical body 91 through the plurality of holes 911 on the cylindrical body 91 of the float valve assembly 9. The gas to be analyzed leaves the lower end of the spiral gas-liquid separation blade 6, and downwards reaches the lower part of the lower end of the cylinder 71 of the ceramic particle filtering unit 7, and then reversely and upwards enters the space where the plurality of ceramic particles 75 of the ceramic particle filtering unit 7 are located, wherein part of water and dust are gathered by the plurality of ceramic particles 45, downwards fall to the bottom of the cylindrical container 5, and enter the cylinder 91 through the plurality of holes 911 on the cylinder 91 of the ball float valve assembly 9. The gas to be analyzed continuously rises, enters the space where the cylindrical ceramic filter element 81 of the ceramic filter element filtering unit 8 is positioned, passes through the micropores of the cylindrical ceramic filter element 81, enters the cylindrical ceramic filter element 81, and in the process, water and dust with extremely tiny sizes are splashed down by the cylindrical ceramic filter element 81, downwards passes through the space where the plurality of ceramic particles 75 are positioned, falls to the bottom of the cylindrical container 5, and enters the cylinder 91 through the plurality of holes 911 on the cylinder 91 of the ball float valve assembly 9. When the liquid level of the mixed liquid of water and dust falling into the bottom of the cylindrical container 5, that is, the liquid level of the mixed liquid of water and dust in the cylindrical body 91 rises to a certain height, the float valve 93 is opened, and the excessive mixed liquid of water and dust is discharged to the outside of the cylindrical container 5 through the short pipe 52. The gas to be analyzed that has entered the cylindrical ceramic filter element 81 continues to rise and is discharged to the outside of the cylindrical vessel 5 through the short pipe 821, and at this time, the gas to be analyzed contains almost no water and dust.

Claims

1. The gas filtering device is characterized by comprising an outer cylinder body, wherein a top cover and a bottom cover are respectively connected to the upper end and the lower end of the outer cylinder body in a sealing manner; a top end of an inner cylinder body is hermetically connected to the inner surface of the top cover, a circular porous bottom support plate is installed at the bottom end of the inner cylinder body, and a plurality of ceramic particles are layered on the circular porous bottom support plate; the open end of a ceramic core filter barrel is hermetically connected to the inner surface of the top cover, and the ceramic core filter barrel is positioned in the inner cylinder body and above the plurality of ceramic particles; a spiral gas-liquid separation blade is fixedly connected to the outer wall of the inner cylinder, and a certain gap is formed between the outer edge surface of the spiral gas-liquid separation blade and the inner wall surface of the outer cylinder; a float valve is mounted on the bottom cap within the outer cylinder.