CN208018315U - A kind of amplifier case - Google Patents

Abstract

The utility model discloses a kind of amplifier cases, it is applied to tail gas filtering field of purification, it includes honeycomb fired body, the honeycomb fired body is equipped with the filtration supports that outer wall and the outer wall wrap, the filtration supports include the multiple exhaust gas channels and hole locular wall that spaced recirculation hole is formed, the exhaust gas channel nonlinear type setting, the thickness of the outer wall are more than the thickness of hole locular wall；The utility model is novel in design, reasonable for structure, purification efficiency is high, exhaust gas channel is designed using Z-type or S types, increase filter area to greatest extent in a limited space, outer wall thickness is more than hole chamber wall thickness, and granule capturing area and amount of collected can be in optimum state, it is filtered, clean-up effect is splendid, the mechanical strength of entire honeycomb fired body increases, and can be resisted when in use from external vibration or thermal shock, to reach excellent durability.

Description

A kind of amplifier case

Technical field

The utility model is related to field of exhaust gas purification, specifically a kind of amplifier case.

Background technology

Cordierite is made of clay, talcum, aluminium oxide and silica, and the coefficient of expansion is low, has good thermal impact and height Fusing point, low manufacture cost are easy to volume production, are suitable for diesel particulate filter raw material.

The filtration channel of cordierite filters on the market is all linear type design, and outer wall thickness and hole chamber wall thickness Quite, such tail gas clean-up efficiency is restricted, and the mechanical strength of entire filter is bad, there is improved necessity.

Utility model content

It is big that the utility model technical issues that need to address are to provide a kind of design of filtration channel nonlinear type, outer wall thickness In the amplifier case of hole chamber wall thickness, good filtration effect, mechanical strength is big.

In order to solve the above technical problems, technical solution used by the utility model is：

The utility model includes honeycomb fired body, and the honeycomb fired body is equipped with the filtering that outer wall and the outer wall wrap Carrier, the filtration supports include the multiple exhaust gas channels and hole locular wall that spaced recirculation hole is formed, the exhaust gas channel Nonlinear type is arranged, and the thickness of the outer wall is more than the thickness of hole locular wall.

Further, the exhaust gas channel is set as Z-type channel.

Further, the exhaust gas channel is set as S types channel.

Further, the outer wall（3）Thickness and hole locular wall（2）Thickness ratio is 1.05-2.

Further, the thickness of the outer wall is 0.25-0.5mm.

By adopting the above-described technical solution, the advantageous effect that the utility model obtains is：

The amplifier case of the utility model, good integrity, exhaust gas channel is arranged to Z-type channel or S types channel, limited Increase filter area, good purification in space to greatest extent；Recirculation hole on next door can effectively filter the black smoke in exhaust gas Particle.

The outer wall thickness of the utility model is more than hole chamber wall thickness, makes in the entire bee for including outer peripheral portion and inboard portion The efficiency of combustion of particle in nest filter improves, and regeneration rate improves, and tail gas clean-up becomes apparent from.In addition the thickness of outer wall fired body More than hole chamber wall thickness, the mechanical strength of entire honeycomb fired body increases, and can be resisted when in use from external vibration or heat Impact, to reach excellent durability.

Description of the drawings

Fig. 1 is the dimensional structure diagram of the utility model；

Fig. 2 is the left view structural representation of the utility model；

Fig. 3 is the utility model Z-type channel main view schematic cross-sectional view；

Fig. 4 is the utility model S types channel main view schematic cross-sectional view.

Wherein, 1, recirculation hole；2, hole locular wall；3, outer wall；4, S types channel；5, Z-type channel.

Specific implementation mode

The utility model is described in further details with reference to embodiment：

A kind of amplifier case, as shown in Figs 1-4 comprising honeycomb fired body made of cordierite, the honeycomb are fired Body can be set to the polyhedral structures such as cylindric, elliptic cylindrical shape, cuboid or square.

As depicted in figs. 1 and 2, the honeycomb fired body is equipped with the filtration supports that outer wall 3 and the outer wall 3 wrap, institute State filtration supports include spaced recirculation hole 1 formed multiple exhaust gas channels and multiple hole locular walls 2, the exhaust gas channel it is non- Linear type is arranged, and the exhaust gas channel is set as Z-type channel 5 or S types channel 4.In this way, in a limited space to greatest extent Filter area is increased, purification efficiency significantly improves.The recirculation hole 1 may be configured as triangle or polygon, be conducive in tail gas The absorption of particle.

The thickness of the outer wall 3 is more than the thickness of hole locular wall 2, in this way, can effectively control exhaust gas more flows into honeycomb mistake The inboard portion of filter is conducive to the flow direction of control exhaust gas, makes more particle packings in temperature higher than in outer peripheral portion Side section simultaneously removes these particle burnings.Inside is resulted from because of the burning of particle in addition, can also be utilized in outer peripheral portion Partial heat makes the efficiency of combustion of the particle in the entire amplifier case including outer peripheral portion and inboard portion improve, then Raw rate improves.In addition, pore chamber wall thickness of the outer wall of the periphery honeycomb fired body of most peripheral than inside honeycomb fired body, honeycomb is fired The mechanical strength of body obviously increases, in use, superior durable to can reach from external vibration and thermal shock Property, the service life is longer.

The thickness of the outer wall 3 is the 1.05-2 of 2 thickness of hole locular wall.If the thickness of the thickness of outer wall 3 and hole locular wall 2 it Than being less than 1.05, then it is not achieved and accumulates more particles in the inboard portion of amplifier case by controlling the flow direction of exhaust gas Effect.It on the other hand, can be with the hole of arrested particles if the ratio between the thickness of outer wall 3 and the thickness of hole locular wall 2 are more than 2.0 The area of locular wall 2 becomes smaller, and the amount of collected that filtration supports capture particle becomes smaller, and the waste gas purification processing capacity of amplifier case will Reduce, so the ratio between thickness of the thickness of outer wall 3 and hole locular wall 2 is optimal selection in 1.05-2, at this time granule capturing area and Amount of collected is in optimum state.

3 thickness of the outer wall is 0.25-0.5mm.If the thickness of outer wall 3 is less than 0.25mm, it is impossible to there is more It is capable of the hole locular wall of arrested particles if the thickness of outer wall 3 is more than 0.50mm in the inboard portion that grain is accumulated in amplifier case 2 area becomes smaller, and the amount of collected of particle is restricted, and the waste gas purification processing capacity of entire amplifier case reduces.Other than institute It is optimal selection that the thickness of wall 3, which is set as 0.25-0.5mm, and granule capturing area and amount of collected are in optimum state at this time.

In use, when tail gas is after the utility model, granule capturing area and amount of collected can be in most Good state, filtering, clean-up effect are splendid.

Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that： It can still modify to the technical solution recorded in previous embodiment, or be equal to which part technical characteristic It replaces；And these modifications or replacements, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution Spirit and scope.

Claims (5)

1. a kind of amplifier case, it is characterised in that：Including honeycomb fired body, the honeycomb fired body is equipped with outer wall（3）With The outer wall（3）The filtration supports of wrapping, the filtration supports include spaced recirculation hole（1）The multiple tail gas formed are logical Road and hole locular wall（2）, the exhaust gas channel nonlinear type setting, the outer wall（3）Thickness be more than hole locular wall（2）Thickness.

2. a kind of amplifier case according to claim 1, it is characterised in that：The exhaust gas channel is set as Z-type channel （5）.

3. a kind of amplifier case according to claim 1, it is characterised in that：The exhaust gas channel is set as S types channel （4）.

4. according to a kind of any amplifier cases of claim 1-3, it is characterised in that：The outer wall（3）Thickness with Hole locular wall（2）Thickness ratio is 1.05-2.

5. a kind of amplifier case according to claim 4, it is characterised in that：The outer wall（3）Thickness be 0.25- 0.5mm。