CN215257886U - SCR is with two butterfly type sealing valve of two drive shafts - Google Patents
SCR is with two butterfly type sealing valve of two drive shafts Download PDFInfo
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- CN215257886U CN215257886U CN202121594666.6U CN202121594666U CN215257886U CN 215257886 U CN215257886 U CN 215257886U CN 202121594666 U CN202121594666 U CN 202121594666U CN 215257886 U CN215257886 U CN 215257886U
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Abstract
The utility model belongs to the technical field of the seal valve, especially, relate to a SCR is with two butterfly type seal valve of two drive axles. The method comprises the following steps: the valve comprises a first valve body, a second valve body, a first valve plate and a second valve plate, wherein the first valve body is provided with a first channel, the second valve body is provided with a second channel, the first valve plate is hinged with the first valve body and matched with the first channel, a first driving part is hinged on the first valve plate, the second valve plate is hinged with the second valve body and matched with the second channel, a second driving part is hinged on the second valve plate, and the first valve body and the second valve body are spliced to form a valve group matched with a pipeline. The utility model is used for solve the inflexible problem of revealing easily of valve opening and closing. The valve plate I and the valve plate II can be opened and closed respectively, airflow is enabled to be evenly distributed, flow resistance is small, opening and closing torque is small, action is flexible and reliable, lubricating bearings are adopted at each transmission part, operation is flexible, friction coefficient is small, and sealing performance is good.
Description
Technical Field
The utility model belongs to the technical field of the seal valve, especially, relate to a SCR is with two butterfly type seal valve of two drive axles.
Background
Selective Catalytic Reduction (SCR) is a treatment process for NOx in gas emissions, i.e. NOx in exhaust gas is reduced to N2 and H2O by injecting a reducing agent, ammonia or urea, under the action of a catalyst.
At present, a kiln tail boiler flue gas pipeline valve in an SCR system is an electric butterfly valve. The valve seat cannot be formed as a single piece due to the influence of the drive shaft. The valve plate is single thin, can not reach sealed requirement, and it is tight to close in the in-service use, and the gas leakage volume is big, easily produces the deformation in high temperature flue gas, causes the card to die, and the switching is inflexible phenomenon.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application embodiment will solve lies in overcoming prior art's not enough, provides a two butterfly type sealing valve of driving axle for SCR for solve the inflexible easy problem of revealing of valve opening and closing.
The technical scheme for solving the technical problems in the embodiment of the application is as follows: a double-drive-shaft double-butterfly type sealing valve for SCR comprises: the first valve body is provided with a first channel;
the second valve body is provided with a second channel;
the first valve plate is hinged with the first valve body and matched with the first channel, and a first driving part is hinged on the first valve plate;
the second valve plate is hinged with the second valve body and matched with the second channel, and a second driving part is hinged to the second valve plate;
the first valve body and the second valve body are spliced to form a valve group matched with a pipeline.
Compared with the prior art, the technical scheme has the following beneficial effects:
the valve group formed by splicing the two valve bodies is assembled in a pipeline, and the two valve bodies are correspondingly opened and closed by the two valve plates respectively, so that the first valve plate and the second valve plate can be opened and closed respectively, airflow is uniformly distributed, the flow resistance is small, the opening and closing torque is small, the action is flexible and reliable, each transmission part adopts a lubricating bearing, the operation is flexible, the friction coefficient is small, and the sealing effect is good.
Furthermore, the first valve body and the second valve body are identical in structure, and are arranged in a rotational symmetry mode around the center of the splicing position.
Further, the first valve body and the second valve body are identical in structure, and the first valve body and the second valve body are arranged along the splicing surface in a mirror symmetry mode.
The first valve body and the second valve body are arranged in mirror symmetry or rotational symmetry, so that the valve group formed by splicing is integrally suitable for different pipelines such as a main pipeline or a bypass pipeline, and the application range is wide.
Furthermore, the working surfaces of the first valve plate and the second valve plate are located on the same plane.
Further, the first driving part is identical in structure to the second driving part, and the first driving part includes: the first end of the first connecting rod assembly is hinged with the first valve plate;
and the output end of the first driving assembly is connected with the second end of the first connecting rod assembly through a transmission shaft movably connected to the first valve body, and is used for driving the valve plate to rotate to open and close.
The valve plate is driven to rotate around the hinged part by driving the connecting rod assembly to move, the connecting rod assembly enables the valve plate to rotate more flexibly, and the strength of the whole transmission structure is effectively improved.
Further, the first drive assembly includes: a drive device;
the first end of the first linkage rod assembly is connected with the output end of the driving device, and the second end of the first linkage rod assembly is connected with the end part, extending out of the first valve body, of the transmission shaft.
Furthermore, the periphery of the valve group is connected with a waist hoop used for fixing the first valve body and the second valve body.
The whole body formed by splicing the first valve body and the second valve body is fixedly connected by the waist hoop, so that the whole strength is improved, and the installation is convenient.
Further, the first driving part and the second driving part are arranged in mirror symmetry or rotational symmetry at the splicing position.
When the first driving part and the second driving part form rotational symmetry, the first driving part and the second driving part are respectively located on two sides of a plane where the first valve plate and the second valve plate are located, and when the first driving part and the second driving part form mirror symmetry, the first driving part and the second driving part are respectively located on the same side of the plane where the first valve plate and the second valve plate are located, and the first driving part and the second driving part are selectively arranged according to different space requirements and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic front view of the structure according to the embodiment of the present invention.
Fig. 2 is a schematic sectional structure view of fig. 1.
Reference numerals:
1. a first valve body; 2. a second valve body; 3. a first channel; 4. a second channel;
5. a first valve plate; 6. a second valve plate;
7. a first drive member;
71. a first link assembly;
72. a first drive assembly;
721. a drive device; 722. a first link assembly;
8. a second drive member;
9. a waist hoop;
10. a valve block.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Examples
As shown in fig. 1-2, the embodiment of the utility model provides a two butterfly type seal valve of driving axle that SCR provided, it includes: a valve body 1, wherein the valve body 1 is provided with a first channel 3;
a second valve body 2, wherein the second valve body 2 is provided with a second channel 4;
the first valve plate 5 is hinged with the first valve body 1 and matched with the first channel 3, a first driving part 7 is hinged on the first valve plate 5, and the first driving part 7 drives the first valve plate 5 to rotate around the hinged part to form opening and closing operations on the first channel 3;
the second valve plate 6 is hinged with the second valve body 2 and matched with the second channel 4, a second driving part 8 is hinged on the second valve plate 6, and the second driving part 8 drives the second valve plate 6 to rotate around the hinged part to form opening and closing operations on the second channel 4;
the valve body I1 and the valve body II 2 are spliced to form a valve group 10 matched with a pipeline.
The valve group 10 formed by splicing the two valve bodies is installed in a pipeline, the two valve bodies are opened and closed correspondingly through the two valve plates, the first valve plate 5 and the second valve plate 6 can be opened and closed respectively, the simultaneous opening and closing operation of the first valve plate 5 and the second valve plate 6 can also be realized, the control mode is flexible, the two channels enable airflow to be evenly distributed, the flow resistance is small, the opening and closing torque is small, the action is flexible and reliable, lubricating bearings are adopted at all transmission parts, the operation is flexible, the friction coefficient is small, each channel is sealed by one valve plate correspondingly, the closing is tight, and the leakage rate is small.
The first valve body 1 and the second valve body 2 are identical in structure, and the first valve body 1 and the second valve body 2 are arranged in a rotational symmetry mode around the center of the splicing position.
Specifically, the first valve body 1 is consistent with the second valve body 2 in structure, and the two valve bodies are in rotational symmetry around the central axis of the surface where the splicing part is located, so that the first valve body 1 and the second valve body 2 can be spliced by two at will, and the matching problem during assembly is reduced.
In another embodiment, the first valve body 1 and the second valve body 2 have the same structure, and the first valve body 1 and the second valve body 2 are arranged along the splicing surface in a mirror symmetry manner.
The valve body I1 and the valve body II 2 are arranged to be mirror symmetry or rotational symmetry, so that the valve group 10 formed by splicing is integrally applicable to different pipelines such as a main pipeline or a bypass pipeline, and the application range is wide.
The working surfaces of the first valve plate 5 and the second valve plate 6 are located on the same plane. The processing of the check ring matched with the valve plate in the valve body is facilitated, and the sealing effect is guaranteed.
Further, the first driving part 7 is identical in structure to the second driving part 8, and the first driving part 7 includes:
the first end of the first connecting rod assembly is hinged with the first valve plate 5;
the output end of the first driving assembly 72 is connected with the second end of the first connecting rod assembly through a transmission shaft movably connected to the first valve body 1, and the first driving assembly is used for driving the first valve plate 5 to rotate to open and close.
Likewise, the second drive member 8 includes:
a first end of the second connecting rod assembly is hinged with the second valve plate 6;
and the output end of the second driving assembly is connected with the second end of the second connecting rod assembly through a transmission shaft which is movably connected to the second valve body 2, and is used for driving the second valve plate 6 to rotate to open and close.
The valve plate is driven to rotate around the hinged part by driving the connecting rod assembly to move, the connecting rod assembly enables the valve plate to rotate more flexibly, and the strength of the whole transmission structure is effectively improved.
The first driving part 7 and the second driving part 8 are arranged in mirror symmetry or rotational symmetry at the splicing position.
In particular, a mirror-symmetrical or rotationally symmetrical arrangement of the first and second drive components 7, 8 may be achieved by the first and second linkage assemblies therein.
When the first driving component 7 and the second driving component 8 form a rotational symmetry arrangement, the first connecting rod assembly and the second connecting rod assembly are respectively located on two sides of a plane where the first valve plate 5 and the second valve plate 6 are located, and when the first driving component 7 and the second driving component 8 form a mirror symmetry arrangement, the first connecting rod assembly and the second connecting rod assembly are respectively located on the same side of the plane where the first valve plate 5 and the second valve plate 6 are located, and the arrangement is selectively performed according to different space requirements and the like.
Wherein the first drive assembly 72 comprises: a drive device 721;
a first linkage rod assembly 722, wherein a first end of the first linkage rod assembly 722 is connected with the output end of the driving device 721, and a second end of the first linkage rod assembly 722 is connected with the end part of the transmission shaft extending out of the valve body 1.
The second driving assembly has the same structure as the first driving assembly 72, and is not described herein again.
The periphery of the valve group 10 is connected with a waist hoop 9 for fixing the valve body I1 and the valve body II 2.
Utilize waist hoop 9 to connect the whole after valve body 1 and valve body 2 splice fixedly, form a whole, improve holistic intensity, simple to operate.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a two butterfly type sealing valve of two drive shafts for SCR which characterized in that includes: the first valve body is provided with a first channel;
the second valve body is provided with a second channel;
the first valve plate is hinged with the first valve body and matched with the first channel, and a first driving part is hinged on the first valve plate;
the second valve plate is hinged with the second valve body and matched with the second channel, and a second driving part is hinged to the second valve plate;
the first valve body and the second valve body are spliced to form a valve group matched with a pipeline.
2. The double-drive-shaft double-butterfly type sealing valve for the SCR of claim 1, wherein the first valve body and the second valve body have the same structure, and are rotationally symmetric around a center of a splicing part.
3. The double-drive-shaft double-butterfly type sealing valve for the SCR of claim 1, wherein the first valve body and the second valve body have the same structure, and are arranged along a splicing surface in a mirror symmetry mode.
4. The double-drive-shaft double-butterfly type sealing valve for the SCR of claim 1, wherein working surfaces of the first valve plate and the second valve plate are located on the same plane.
5. The SCR dual drive shaft, dual butterfly seal valve of claim 1, wherein the first drive member is identical in construction to the second drive member, the first drive member comprising: the first end of the first connecting rod assembly is hinged with the first valve plate;
and the output end of the first driving assembly is connected with the second end of the first connecting rod assembly through a transmission shaft movably connected to the first valve body, and is used for driving the valve plate to rotate to open and close.
6. The dual drive shaft, dual butterfly seal valve for SCR of claim 5, wherein the first drive assembly comprises: a drive device;
the first end of the first linkage rod assembly is connected with the output end of the driving device, and the second end of the first linkage rod assembly is connected with the end part, extending out of the first valve body, of the transmission shaft.
7. The double-drive-shaft double-butterfly type sealing valve for the SCR of claim 1, wherein a waist hoop for fixing the first valve body and the second valve body is connected to the periphery of the valve group.
8. The double-drive-shaft double-butterfly seal valve for the SCR according to claim 1, wherein the first drive member and the second drive member are arranged in mirror symmetry or rotational symmetry at the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121594666.6U CN215257886U (en) | 2021-07-13 | 2021-07-13 | SCR is with two butterfly type sealing valve of two drive shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121594666.6U CN215257886U (en) | 2021-07-13 | 2021-07-13 | SCR is with two butterfly type sealing valve of two drive shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215257886U true CN215257886U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121594666.6U Active CN215257886U (en) | 2021-07-13 | 2021-07-13 | SCR is with two butterfly type sealing valve of two drive shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215257886U (en) |
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2021
- 2021-07-13 CN CN202121594666.6U patent/CN215257886U/en active Active
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