JPS6064619A - Catalyst apparatus - Google Patents

Abstract

PURPOSE:To provide an inexpensive holding metal fitting imparting no damage to a catalyst, by dividing a plane for clamping the catalysts of outer and inner metal fittings in a meandering line shape, and providing a catalyst to the plane part by inserting the same between both metal fittings in a state opposedly contacted therewith. CONSTITUTION:The plane part 11 of a holding metal fitting 10 made of a heat resistant stainless steel plate with a thickness of 0.3-0.5mm. is cut along a meandering line 12 to be divided into an outer metal fitting 13 and an inner metal fitting 14. A foldable fixing pawl 15 is provided to the outer metal fitting 13. The inner metal fitting and the outer metal fitting are assembled and fixed which the center of the inner metal fitting 14 is aligned by the leading end of the fixing pawl 15. A catalyst 1 is provided to the plane parts of the outer metal fitting 13 and the inner metal fitting 14 by inserting the same between both fittings in a state respectively contacted therewith opposedly.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to combustors that completely burn fuel such as oil and gas, i.e., heating stoves, hot air heaters, water heaters, water heaters, etc. This invention relates to a catalyst device for removing unburned products and nitrogen oxides, or deodorizing them.

Structures of conventional examples and their problems Conventionally, granular, honeycomb, cloak-shaped, two-foamed metal shapes, etc.
Various catalytic devices are being fabricated. We have also made numerous proposals regarding the shape and structure of cross catalysts. For example, as shown in Figure 1, a cross catalyst 1 with a meandering cross section is sandwiched between two metal plates 2 and fixed by welding, etc.; There are some that have a structure with increased mechanical strength, and others that are fixed with one or two metal holding fittings 4, 5, and 7 as shown in Figs. In fixing the holder 42.3 shown in Fig. 2, the cross catalyst 1 is an insulating material, so spot welding, which is highly productive, cannot be used, and in fixing it by caulking in Figs. There was a risk of crushing the cross catalyst 1, which caused problems in workability and control of production conditions.Furthermore, spot welding at multiple locations was used as a fastening method with good workability. The price of the holding metal fittings 2, 3, 4, 5.6, 7, 8, and chuan 9 of the one shown in Fig. 6, including the conventional example shown in Fig. 5, is 0.8 to 1.5 times the application price. It has been desired to reduce the price of the holding metal fittings, which are auxiliary members of the catalyst device.

OBJECTS OF THE INVENTION The present invention aims to reduce the cost of the holding fittings constituting the catalyst device, as shown in FIG. It is.

Structure of the Invention In order to achieve this object, the present invention is a cross-catalyst: The holding fitting to hold the catalyst is divided into an outer fitting and an inner fitting, and each of the holding fittings is divided into an outer fitting and an inner fitting. The cross catalyst is inserted so as to face each other, and the cross catalyst is fixed via the inner metal fitting by bending a plurality of fixing claws provided on the outer metal fitting.

Description of examples Hereinafter, FIG. 7(a) of the drawings for one embodiment of the present invention will be described.

(b) to Z) explained along with FIG. A plate having a cross-sectional shape as shown in Figure 7(b) with a thickness of 0.3 to 0.5L
The outer diameter of the holding fitting 10 on the flow side of the heat-resistant main circle of B is φ89 Mm
, since the width of the flat part 11 is 9 mm, the meandering line 1
8(a) and 8(b) show the holding fitting 10 having an outer diameter of φ8° to 200 mrtb and a plane width of 8° to 8°. Figure 8(a) shows the outer metal fitting 13, and Figure 8 (with) shows the inner metal fitting 14.
It shows. The outer metal fitting 13 that has been cut is separately provided with a fixing claw 15 that can be bent, and the fixing claw 15 shown in FIG. 9 is fixed. FIG. 1o shows a front cross section of the assembled catalyst device, in which the center of the inner fitting 14 is aligned with the tip 1 of the fixing claw 15.

Effects of the Invention According to the present invention, the price of the holding fitting is about % of that of the conventional example, and the performance as a catalyst device is the same as that of the conventional example.
For example, when attached to a portable oil stove, it exhibits excellent effects as a catalyst device, with a total hydrocarbon purification rate of 80-86% and a C○ purification rate of 86-92%.

[Brief explanation of the drawing]

Figures 1 to 6 are cross-sectional views of conventional catalyst devices, and Figure 7 (a
) is a plan view showing the meandering line of the holding fitting of the catalyst device in one embodiment of the present invention, FIG. 7(b) is a sectional view of the holding fitting, and FIGS. 8(a) and (b) are n External metal fittings. FIG. 9 is a plan view of the inner fitting, and FIG. 9 is a perspective view of the same catalyst device.
The figure is a sectional view of the same. 1...Cross catalyst, 10...Holding fitting, 11
... Plan view, 12 ... Meandering line, 13 ... Outer metal fitting, 14 ... Inner metal fitting, 15 ... Fixing claw. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 1 Figure 5 Figure 6 Figure 7 (α9 Dopa j8 Figure (b) Figure 9/ Figure 10

Claims (1)

[Claims] The holding fitting that holds the cross catalyst is composed of an outer fitting and an inner fitting, and the flat portion of the outer fitting and the inner fitting that clamps the cross catalyst is constructed by dividing one plane of the holding fitting into a meandering line shape. , the cross catalyst was inserted so as to be in contact with the flat parts of the outer metal fitting and the inner metal fitting, and the cross catalyst was fixed via the inner metal fitting by bending a plurality of fixing claws provided on the outer metal fitting. Catalyst device.