JPH0742487Y2 - Adsorption cylinder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an adsorption column for adsorbing and removing a specific gas in a raw material gas.

[Conventional technology]

The adsorption column is filled with an adsorbent such as X-based synthetic zeolite, carbon molecular sieves, 5A-based zeolite or a desiccant, and a specific gas in the raw material gas injected from the inlet is adsorbed by these adsorbents. Then, the purified gas from which the gas has been removed is discharged from the outlet.
For example, as shown in FIG. 2, in order to prevent the adsorbent 2 from falling off in the upper part and the lower part of the cylindrical body 1, respectively, drop-off preventing members 3, 3 such as a perforated plate or a wire mesh are provided to prevent the upper part from falling off. Spaces 4 and 4 are formed in the upper part of the member 3 and in the upper part of the lowering prevention member 3 so that the flowing gas is evenly dispersed and flows in the filled adsorbent 2, respectively. An upper lid 6 having an outlet 5 is welded to the upper portion, and a lower lid 8 having a gas inlet 7 is welded to the lower portion of the cylinder 1.

[Problems to be solved by the device]

For this reason, there is a disadvantage that the filling volume of the adsorbent is smaller than the volume of the adsorption column and the effective porosity is low. Especially, in the case of a small adsorption purification device, the adsorption column occupies a large proportion, and It was difficult to make it compact.

Further, as described above, the space portions are formed above and below the cylindrical body, and the fall-preventing member is provided so that the adsorbent does not enter the space portion. Was there.

Therefore, the present invention effectively utilizes a predetermined volume of the adsorption cylinder to be used, and even if a space is not provided above and below the cylinder, the gas flowing in the cylinder uniformly flows in the cylinder without causing a drift. An object of the present invention is to provide an adsorption cylinder which can be easily filled with the adsorbent and attached with a member for preventing the adsorbent from falling out of the cylinder to improve manufacturing workability.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides an adsorption cylinder in which an adsorbent is filled in a cylinder having an inlet for a raw material gas and an outlet for a purified gas, and forming both ends of the cylinder into a hemispherical spherical surface, And an outlet are respectively arranged along the axial center position of the cylindrical body at the hemispherical spherical tops of the both ends, and the pipe joints respectively connected to the inlet and the outlet are filled with the adsorbent filled in the cylindrical body. It is characterized in that an adsorbent drop-off prevention member having pores smaller than the particle diameter is provided.

[Action]

With such a configuration, the gas flowing in the cylinder flows uniformly without causing a non-uniform flow, so that the entire space in the cylinder can be filled with the adsorbent, and the inlet and outlet can be filled only by mounting pipe joints. It is possible to prevent the adsorbent from falling off.

〔Example〕

 An embodiment of the present invention will be described below with reference to FIG.

The adsorption cylinder 10 is composed of a cylindrical body portion 11, a canopy portion 12 and a lower lid portion 13 whose both ends are formed into a hemispherical spherical surface.
At the top of 12, the outlet 14 is located at a position along the axis of the adsorption cylinder 10.
At the top of the lower lid portion 13, inlets 15 are opened at positions along the axis of the adsorption cylinder 10.

At the outlet 14 and the inlet 15, pipe joints 16 and 17 which connect pipe lines for gas introduction and discharge are respectively screwed. The pipe diameter of the pipe joints 16 and 17 is preferably at least 1/10 or more and 1/3 or less of the inner diameter of the body portion 11, and thereby, the gas flowing in the adsorption cylinder 10 Can be distributed evenly across the cross section of the cylinder.

Further, in the pipe joints 16 and 17, a drop-off prevention member 18 having pores smaller than the particle diameter of the adsorbent filled in the adsorption cylinder 10 is fixed to the pipe line at the end portion inside the adsorption cylinder 10. And provided respectively.

As the falling-off preventing member 18, a perforated plate, a wire mesh, a porous filter, a sintered metal, a porous ceramics, a honeycomb member, a calcium silicate having a continuous open pore structure, or the like is used.

When filling the adsorbent in the adsorption cylinder 10 configured in this manner, the pipe joint 16 or the pipe joint 17 is screwed into either the outlet 14 or the inlet 15, and from the other mouth not screwed. The adsorbent is filled in the adsorption cylinder 10, and the pipe joint 16 or the pipe joint 17 is screwed into the other port.

At this time, the filled adsorbent is the pipe joint 16 or the pipe joint.
The fall prevention member 18 provided on the holding member 17 holds the inside of the adsorption cylinder 10 without dropping it to the outside.

Further, when the raw material gas is introduced into the adsorption cylinder 10 through the inlet 15 in order to perform the adsorption operation in the adsorption cylinder 10, the spherical surface of the bottom lid portion 13 allows the gas to efficiently flow along the cross section of the adsorption cylinder 10. The particles are dispersed, uniformly flow in the adsorption cylinder 10, and are discharged toward the outlet 14.

Therefore, it is possible to fill the entire volume of the adsorption cylinder 10 with the adsorbent without providing a space above and below like the conventional adsorption cylinder, and to use the entire space of the adsorption cylinder 10 as the adsorption effective space, which is extremely effective. Yes, it is especially effective for small-scale adsorption purification equipment.

[Effect of device]

As described above, in the adsorption cylinder of the present invention, both ends of the cylinder filled with the adsorbent are formed into a hemispherical spherical surface, and the inlet of the raw material gas and the outlet of the purified gas are arranged along the axial center position of the cylinder. Preventing the falling off of the adsorbent having fine pores smaller than the particle size of the adsorbent filled in the cylindrical body in the pipe joints respectively disposed at the hemispherical spherical tops of the both ends and connected to the inlet and the outlet, respectively. Since the member is provided, the fall-out prevention member does not exist inside the cylinder, so that the entire inside of the cylinder of the adsorption cylinder can be filled with the adsorbent, and the hemispherical spherical tops formed at the both ends of the cylinder have an inlet for the raw material gas. By disposing the purified gas and the outlet of the purified gas, respectively, to prevent uneven flow of the gas flowing in the cylinder, without providing a space for dispersing the gas flowing in the vicinity of the inlet and the outlet in the cylinder, as in the conventional case, Disperses gas evenly across the cross section of the cylinder It can, therefore, to enable the effective use of the adsorbent filled in the entire interior tubular body, it is possible to miniaturize the adsorption column.

In addition, since the adsorbent fall-out prevention member is provided in the pipe joints connected to the inlet and the outlet, respectively, the attachment work of the fall-out prevention member is facilitated, and the pipe at one of the ports is filled with the adsorbent. Since the joint is attached and the adsorbent is filled into the cylinder from the other port where the pipe joint is not attached, the whole interior of the cylinder can be easily filled with the adsorbent, and the manufacturing process of the adsorption cylinder can be simplified. .

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the suction cylinder of the present invention, and FIG.
The figure is a cross-sectional view of a conventional suction cylinder. 10 …… Suction cylinder, 11 …… Body part, 12 …… Cover part 13 …… Bottom cover part, 14 …… Outlet, 15 …… Inlet 16,17 …… Pipe joint, 18 …… Dropout prevention member

Claims (1)

[Scope of utility model registration request] 1. An adsorption cylinder in which an adsorbent is filled in a cylinder having a raw material gas inlet and a purified gas outlet, and both ends of the cylinder are formed into a hemispherical spherical surface, and the inlet and the outlet are formed as described above. Smaller than the particle size of the adsorbent filled in the tubular body in the pipe joints, which are respectively disposed on the hemispherical spherical tops of the both ends along the axial center position of the tubular body and are connected to the inlet and the outlet, respectively. An adsorption cylinder provided with an adsorbent fall-off prevention member having pores.