JP2014028346A - Desulfurizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a desulfurizer capable of making a desulfurizing agent act on gas to be desulfurized more evenly and appropriately, while performing downsizing of the whole, or the like.SOLUTION: A desulfurizer A including a container 2 inside of which is filled with a desulfurizing agent 1, is configured so that gas to be desulfurized introduced into the container 2 reaches an outlet port 22 provided at the container 2, after passing through an area S1 filled with the desulfurizing agent. A gas introduction pipe 3 for introducing the gas to be desulfurized into the container 2 is provided so as to enter the inside of the container 2 from the outside. The gas introduction pipe 3 includes a header pipe body part 30 having a length in a direction intersecting a traveling direction of the gas to be desulfurized in the area S1 filled with the desulfurizing agent, and located in the area S1 filled with the desulfurizing agent. The header pipe body part 30 has multiple spouts 32 for the gas to be desulfurized, at intervals in a longitudinal direction of the header pipe body part 30.

Description

  The present invention relates to a desulfurizer used for performing a desulfurization treatment of a desired gas such as a fuel gas used in a fuel cell power generation system.

As this type of desulfurizer, there is one described in Patent Document 1. The desulfurizer described in this document is simply shown in FIG.
The desulfurizer B1 shown in FIG. 1A has a configuration in which a desulfurizing agent 7 is accommodated in a container 8 in which an inlet 80 and an outlet 81 for a desulfurization target gas are formed. In order to effectively use the desulfurization agent 7 and increase the desulfurization processing capacity, it is desired to avoid the gas to be desulfurized from passing to a part of the desulfurization agent filling region. As a means for this purpose, a porous plate 90 is provided in the lower part of the container 8, and the desulfurization target gas that has passed through the inlet 80 is placed between the porous plate 90 and the inlet 80. A gas diffusion region 82 is provided in the hole 90a to make it proceed uniformly.
On the other hand, in the desulfurizer B2 shown in FIG. 5B, a partition plate 92 having a cylindrical projection 91 having a porous outer periphery is provided in the container 8 in place of the porous plate 90 described above. A gas diffusion region 82 is also provided below the partition plate 92.
According to such a configuration, the desulfurization target gas can be advanced from the holes 90a and 91a of the perforated plate 90 or the cylindrical projection 91 toward the desulfurization agent filling region.

However, the prior art has the following problems.
That is, in any of the desulfurizers B1 and B2, it is necessary to provide a gas diffusion region 82 having an appropriate height H1 in the lower part in the container 8. Therefore, the whole is bulky, and there is still room for improvement in reducing the overall size. Further, since the porous plate 90 or the partition plate 92 having the cylindrical protrusion 91 is used, the cost of these parts increases and the manufacturing cost also increases.
In the desulfurizer B <b> 2, the desulfurization target gas is ejected from the outer peripheral hole 91 a of the cylindrical protrusion 91 in the radial direction of the container 8. However, with such a jetting method, it is difficult to make the desulfurization target gas proceed uniformly over the entire desulfurization agent filling region.

JP 2008-117652 A

  The present invention has been conceived under the circumstances as described above, and it is possible to appropriately cause the desulfurization target gas to act on the desulfurization agent in a state of less bias while reducing the overall size and the like. The challenge is to provide a possible desulfurizer.

  In order to solve the above problems, the present invention takes the following technical means.

The desulfurizer provided by the present invention includes a container filled with a desulfurizing agent, and the desulfurization target gas introduced into the container is provided in the container after proceeding through the desulfurizing agent filling region. The desulfurizer is configured to reach an outlet having a gas introduction pipe for introducing a desulfurization target gas into the container, and is provided to enter the interior from the outside of the container. The gas introduction pipe is provided with a header tube portion having a length in a direction intersecting a traveling direction of the desulfurization target gas in the desulfurization agent filling region and located in the desulfurization agent filling region; The header pipe part is provided with a plurality of jet holes for desulfurization target gas at intervals in the longitudinal direction of the header pipe part.

According to such a configuration, the desulfurization target gas jets provided in the header pipe body portion of the gas introduction pipe are distributed over a wide area in a direction intersecting the traveling direction of the desulfurization target gas. Can be provided. Therefore, the desulfurization target gas can be caused to flow in a state with little bias with respect to the entire desulfurization agent filling region, and the desulfurization agent can be used effectively.
In addition, according to the present invention, unlike the prior art, it is not necessary to provide a gas diffusion region at a position on the gas introduction side of the container. Therefore, the overall size of the desulfurizer can be reduced. Furthermore, since it is not necessary to use a perforated plate or a partition plate having a cylindrical projection that has been used for gas diffusion in the prior art, it is possible to reduce the manufacturing cost of the desulfurizer.

  In the present invention, it is preferable that the gas introduction pipe has a non-header pipe part that extends through the container in a traveling direction of the desulfurization target gas in the desulfurization agent filling region, and a tip of the non-header pipe part. The header tube part is connected to the part.

  According to such a configuration, the position of the header tube part can be changed by changing the length of the non-header tube part, and the header tube part can be changed by setting the length of the non-header tube part. It becomes easy to arrange at a desired position. Since the non-header pipe body portion of the gas introduction pipe extends in the traveling direction of the desulfurization target gas, there is no problem that the non-header pipe body portion has a large resistance to the flow of the desulfurization target gas.

  In the present invention, preferably, the header pipe part and the non-header pipe part are integrally formed by bending the gas introduction pipe.

  According to such a configuration, the manufacturing cost of the gas introduction pipe can be reduced.

  In the present invention, preferably, the container is configured by combining a cylindrical container body that is open at one end and closed at the other end, and a lid that closes the opening at the one end of the container body. Is provided with a hole different from the outlet and the outlet, and the gas introduction pipe enters the inside of the container from the outside through the hole of the lid.

  According to such a configuration, the outlet for the desulfurization target gas and the hole for allowing the gas introduction pipe to enter the vessel are provided together in the lid, and the pipe connection of the desulfurizer is connected from one direction. It can be done easily. Further, it is not necessary to provide a hole or the like on the other end side of the container body, and the structure of the container body can be simplified.

  In the present invention, preferably, the plurality of jet outlets are provided so as to eject the desulfurization target gas in a direction opposite to a traveling direction of the desulfurization target gas in the desulfurization agent filling region.

  According to such a configuration, the desulfurization target gas after being ejected from each outlet is compared with the case where the desulfurization target gas is ejected from each outlet in the same direction as the direction of travel of the desulfurization target gas in the desulfurization agent filling region. The degree of diffusion can be increased. Therefore, it is more preferable for the desulfurization target gas to travel evenly and uniformly throughout the entire desulfurization agent filling region.

  Other features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

(A) is sectional drawing which shows an example of the desulfurizer based on this invention, (b) is Ib-Ib sectional drawing of (a), (c) is Ic-Ic essential part of (a). FIG. FIG. 2 is a perspective view of a gas introduction pipe used in the desulfurizer shown in FIG. 1. (A), (b) is a plane sectional view showing other examples of the present invention. (A) is a plane sectional view showing other examples of the present invention, and (b) is a schematic perspective view of the gas introduction pipe shown in (a). (A) is a plane sectional view showing other examples of the present invention, and (b) is a schematic perspective view of the gas introduction pipe shown in (a). It is sectional drawing which shows the other example of this invention. (A), (b) is a schematic sectional explanatory drawing which shows the example of a prior art.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  A desulfurizer A shown in FIG. 1 includes a container 2 containing a desulfurizing agent 1 and a gas introduction pipe 3.

  The container 2 is configured by combining a bottomed cylindrical container main body 20 having an open top and a lid 21 that closes the upper opening of the container main body 20. The lid body 21 is provided with a hole portion 23 through which the gas introduction pipe 3 is inserted and an outlet 22 for the desulfurization target gas. The desulfurizing agent 1 is, for example, a zeolite type such as a metal-supported zeolite and is granular (including pellets). Of course, a different type of desulfurizing agent can be used. The desulfurizing agent 1 is filled in substantially the entire area of the container 2 excluding the position near the top so as to be deposited on the bottom wall portion 20 a in the container 2. A filter 24 is provided above the desulfurization agent filling region S1.

  The gas introduction pipe 3 has a header pipe part 30 and a non-header pipe part 31 connected thereto. The header pipe part 30 and the non-header pipe part 31 are formed in an integrally connected state by bending the gas introduction pipe 3. The non-header tube part 31 is inserted into the hole 2 of the container 2 so as to enter the inside from the outside of the container 2 and is a straight tube extending in the vertical height direction of the container 2. The upper end portion 31a of the non-header tube portion 31 is a gas pipe connection portion, and the desulfurization target gas is supplied into the gas introduction tube 3 from a gas pipe connected to the upper end portion 31a.

  The header tube part 30 is a part for diffusing the desulfurization target gas into the desulfurization agent filling region S1 and flowing out, and has a length in the horizontal direction (agreeing that the central axis of the pipe is substantially horizontal). The body part. Here, in the present embodiment, the direction corresponding to the “traveling direction of the desulfurization target gas in the desulfurization agent filling region” of the present invention is the upward direction indicated by the arrow N1. The horizontal direction corresponds to a direction intersecting with the progress of the desulfurization target gas. As shown well in FIG. 1B and FIG. 2, the header tube portion 30 includes a main portion 30a having a partially cut-out circular loop shape in plan view, and the main portion 30a as a non-header tube portion. And an auxiliary portion 30 b connected to the lower portion of 31. The auxiliary portion 30 b extends in the radial direction of the container 2.

As clearly shown in FIG. 1A, the header tube body portion 30 is provided close to the bottom wall portion 20 a of the container 2. The header pipe part 30 is provided with a plurality of jet ports 32 for the desulfurization target gas at an appropriate interval in the longitudinal direction of the header pipe part 30. However, each jet port 32 is provided not on the upper surface side of the header tube body portion 30 but on the lower surface side. Moreover, as shown in FIG.1 (c), the jet nozzle 32 inclines by the suitable angle (alpha) with respect to the up-down height direction of the container 2 so that desulfurization object gas may be jetted diagonally downward. Are provided in two rows. The desulfurization target gas is ejected from each ejection port 32 toward the bottom wall portion 20a of the container 2.

  Next, the operation of the desulfurizer A will be described.

  First, the desulfurization target gas that has been supplied from the gas pipe (not shown) into the gas introduction pipe 3 is jetted downward from the plurality of jets 32, but eventually proceeds upward in the container 2. And reaches the outlet 22 and flows out of the container 2. In such a process, the sulfur component in the desulfurization target gas is adsorbed and removed by the desulfurizing agent 1. Here, the header tube part 30 has a substantially loop-shaped main part 30a, and the plurality of jet outlets 32 provided in the main part 30a are distributed over a wide horizontal region. Yes. Therefore, it is possible to cause the desulfurization target gas to act on the entire desulfurization agent filling region S1 so as not to cause a large bias.

  In particular, in the present embodiment, since the desulfurization target gas is ejected downward from each of the ejection ports 32, the desulfurization target gas ejected downward is changed until the traveling direction changes thereafter and becomes upward. Thus, an action capable of widely diffusing the desulfurization target gas is obtained. Therefore, it is further promoted that the desulfurization target gas is uniformly advanced to each part of the desulfurization agent filling region S1. Moreover, although the desulfurization agent 1 exists also under the header pipe part 30, the desulfurization target gas can be appropriately applied to the desulfurization agent 1. Furthermore, if the jet port 32 is directed downward, for example, the effect that the desulfurizing agent 1 is less likely to be clogged in the jet port 32 than when the jet port 32 is directed upward is obtained. However, this invention is not limited to this, For example, you may provide the jet nozzle 32 upward or sideways.

  The desulfurizer A of the present embodiment uses a gas introduction pipe 3 having a header pipe body portion 30 as a means for diffusing and flowing a gas to be desulfurized in the container 2, and the gas introduction pipe 3 is filled with a desulfurizing agent. It arrange | positions to area | region S1. Therefore, it is not necessary to provide a dedicated space for desulfurization target gas diffusion on the gas introduction side of the container 2, and the entire size can be reduced accordingly. Further, since the total number of parts is small, the manufacturing cost can be reduced.

  3 to 6 show other embodiments of the present invention. In these drawings, elements that are the same as or similar to those in the above embodiment are given the same reference numerals as in the above embodiment.

  In the embodiment shown in FIG. 3A, the peripheral wall of the container 2 has a rectangular cylindrical shape. The header tube part 30 of the gas introduction pipe 3 has a partially cutout or non-cutout rectangular loop shape corresponding thereto. In FIG. 5B, the header tube part 30 has a meandering shape.

  In the embodiment shown in FIG. 4A, the peripheral wall of the container 2 is a rectangular cylinder having a large width in the left-right direction and a relatively small front-rear width. Correspondingly, the header tube part 30 has a shape extending linearly in the left-right width direction of the container 2. In this case, as shown in FIG. 5B, the gas introduction tube 3 may be formed in a shape bent in an L shape in a side view.

  In the embodiment shown in FIGS. 5A and 5B, the header tube body 30 is formed in a cross shape in plan view. It is difficult to form the header tube body 30 having such a form by bending one tube body. In this embodiment, the header pipe body part 30 is formed by welding a plurality of pipes, and this is further employed by means of further welding the non-header pipe part 31. As in this embodiment, the gas introduction pipe does not necessarily have to be formed by bending a single pipe body, and may be formed by joining a plurality of pipe bodies. .

In the embodiment shown in FIG. 6, the gas introduction pipe 3 enters the container 2 by penetrating the side wall of the container 2 in the horizontal direction. According to this embodiment, for example, the header pipe body portion 30 of the gas introduction pipe 3 does not need to be provided in a form bent with respect to the other parts of the gas introduction pipe 3.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the desulfurizer according to the present invention can be variously modified within the intended scope of the present invention.

  In the present invention, the specific shape, size, material and the like of the container and the gas introduction pipe are not particularly limited. As described above, the type of the desulfurizing agent is not limited. In addition, the “advancing direction of the desulfurization target gas in the desulfurization agent filling region” in the present invention is not limited to the upward direction, and may be another direction such as a downward direction or a horizontal direction.

  The desulfurizer according to the present invention is suitable for treating a fuel gas such as city gas or LPG used as a hydrogen source of a fuel cell by being assembled in a fuel cell system. It is not limited.

A Desulfurizer S1 Desulfurizing agent filling area 1 Desulfurizing agent 2 Container 3 Gas introduction pipe 20 Container body 21 Lid 22 Outlet 23 Hole 30 Header pipe part 31 Non-header pipe part 32 Jet outlet (of desulfurization target gas)

Claims (5)

It has a container filled with a desulfurizing agent inside,
The desulfurization target gas introduced into the vessel is configured to reach the outflow port provided in the vessel after traveling through the desulfurization agent filling region,
A gas introduction pipe for introducing the desulfurization target gas into the container is provided to enter the interior from the outside of the container,
The gas introduction pipe is provided with a header pipe portion having a length in a direction intersecting with a traveling direction of the desulfurization target gas in the desulfurization agent filling region and located in the desulfurization agent filling region,
The desulfurizer according to claim 1, wherein a plurality of jets for desulfurization target gas are provided in the header pipe part at intervals in the longitudinal direction of the header pipe part. The desulfurizer according to claim 1,
The gas introduction pipe has a non-header pipe body portion that extends through the vessel in the traveling direction of the desulfurization target gas in the desulfurization agent filling region,
A desulfurizer in which the header tube part is connected to the tip of the non-header tube part. The desulfurizer according to claim 2, wherein
The desulfurizer, wherein the header pipe part and the non-header pipe part are integrally formed by bending the gas introduction pipe. A desulfurizer according to any one of claims 1 to 3,
The container is configured by combining a cylindrical container body that is open at one end and closed at the other end, and a lid that closes the opening at one end of the container body.
The lid is provided with a hole different from the outlet and the outlet,
The desulfurizer, wherein the gas introduction pipe enters the inside of the container from the outside through the hole of the lid. A desulfurizer according to any one of claims 1 to 4, wherein
The plurality of jet outlets are provided with a desulfurizer provided so as to eject the desulfurization target gas in a direction opposite to a traveling direction of the desulfurization target gas in the desulfurization agent filling region.

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