CN215334537U - Flue gas butterfly valve sealing device with compensation sealing function - Google Patents
Flue gas butterfly valve sealing device with compensation sealing function Download PDFInfo
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- CN215334537U CN215334537U CN202121088010.7U CN202121088010U CN215334537U CN 215334537 U CN215334537 U CN 215334537U CN 202121088010 U CN202121088010 U CN 202121088010U CN 215334537 U CN215334537 U CN 215334537U
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Abstract
The utility model provides a smoke butterfly valve sealing device with compensation sealing. The valve seat in the device is fixed on the valve body, the sealing sheet is arranged between the sealing sheet pressing plate and the butterfly plate and locked by the locking bolt group, the sealing sheet rotates along with the butterfly plate under the action of the butterfly valve rotating shaft, and the adjustment of the compensation sealing degree is realized by performing necessary adjustment on the locking bolt group. This sealing device is equipped with and is used for compensation and deformable gasket, therefore the excircle of disk seat and butterfly plate all need not seal the processing, and the gasket is through the sealing pressure plate fastening on the dish board with bolt group, carry out necessary adjustment to bolt group when the assembly can, alright reach a good assembly precision when production, satisfy butterfly valve sealing's operational requirement, reach the purpose of control flap leakage rate.
Description
Technical Field
The utility model relates to the field of valves, in particular to a smoke butterfly valve sealing device with compensation sealing.
Background
The flue gas butterfly valve is indispensable key equipment for controlling flue gas heat energy utilization, smoke dust recovery and treatment emission in an industrial production kiln system, is an execution element with the advantages of production activity and environmental protection, and has special significance for production and life of people. The smoke butterfly valve has the characteristics of large nominal diameter, random temperature change, large working temperature span, low working pressure, complex chemical composition of working media, large demand and the like. Therefore, the development of a flue butterfly valve with good working performance and low manufacturing cost is always an important subject of relevant valve manufacturing enterprises and users. Therefore, a great number of design schemes and implementation schemes have been made for a long time by valve manufacturing enterprises and users, but the overall effect is not very satisfactory. The valve with good sealing effect needs precise machining to control the relevant geometric matching dimension, the production and manufacturing cost is very high, the investment of an enterprise using the valve is large, particularly after the current capacity is large-scale, the drift diameter of a flue is often very large, and the bearing capacity of the enterprise is challenged. The low-production-cost flue butterfly valve without machining is often large in leakage rate when the valve is closed due to low machining precision and poor matching of all elements, and can not meet the requirements of available resources and the requirements of people on living environment protection.
In order to solve the problem, the applicant develops a smoke butterfly valve sealing device with a compensation sealing function on the basis of years of valve design and production experience and by combining with the progress of the existing production equipment technology.
Disclosure of Invention
The utility model aims to provide a smoke butterfly valve sealing device with compensation sealing. The technical problems to be solved by the utility model are as follows: the mode of adopting the compensation seal solves when the butterfly valve is closed, and the flue gas that forms leaks, reduces the leakage rate of butterfly valve, reduces the waste of usable resource to reach the requirement to living environment protection.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a compensated seal flue gas butterfly valve sealing device, comprising: the butterfly valve comprises a valve body, a valve seat, a sealing piece pressing plate, a butterfly valve rotating shaft and a locking bolt group, wherein the valve seat in the butterfly valve device is fixed on the valve body, the sealing piece is arranged between the sealing piece pressing plate and the butterfly plate and is locked through the locking bolt group, and the sealing piece rotates under the action of the butterfly valve rotating shaft along with the butterfly plate.
The adjustment of the compensation tightness in the device is performed by performing necessary adjustment on the locking bolt set.
The sealing plate in the device is made of a stainless steel sheet with good corrosion resistance.
Compared with the prior art, the utility model has the following positive effects:
1. the sealing device is provided with a sealing sheet which is used for compensation and is deformable, so that the valve seat and the excircle of the butterfly plate do not need to be subjected to sealing processing, the sealing sheet is fastened on the butterfly plate through a sealing pressing plate by using a bolt group, and the bolt group is subjected to necessary adjustment during assembly;
2. the sealing sheet arranged in the sealing device completely seals the gap between the valve seat of the butterfly valve and the butterfly plate, so that the smoke passing through the butterfly valve is completely cut off after the butterfly valve is closed;
3. the sealing device not only reduces the processing precision of the flue butterfly valve as a whole, but also utilizes the compensation effect of the sealing device to ensure that the valve plate of the flue butterfly valve is well attached to the valve seat;
4. when the butterfly valve is used for production, the device can achieve good assembly precision, meet the working requirement of butterfly valve sealing and achieve the purpose of controlling the leakage rate of the valve.
Drawings
FIG. 1 is a schematic side view of a smoke butterfly valve sealing device with compensation sealing;
fig. 2 and fig. 1 are schematic diagrams of a partially enlarged structure at C.
In the figure: 1. the valve comprises a valve body, 2, a valve seat, 3, a sealing sheet, 4, a sealing sheet pressing plate, 5, a butterfly plate, 6, a butterfly valve rotating shaft, 7 and a locking bolt group.
Detailed Description
The technical scheme of the utility model is further clearly and completely described below with reference to the accompanying drawings.
Referring to the attached drawings 1-2, a valve seat 2 in the device is fixed on a valve body 1, a sealing sheet 3 is arranged between a sealing sheet pressing plate 4 and a butterfly plate 5 and is locked by a locking bolt group 7, and the sealing sheet 3 rotates along with the butterfly plate 5 under the action of a butterfly valve rotating shaft 6.
The adjustment of the degree of sealing compensation in the device is performed by making the necessary adjustments to the set of locking bolts 7.
The sealing plate 3 in the device is made of a thin sheet of stainless steel with good corrosion resistance.
Fig. 1 shows the flue butterfly valve in a closed state, and it can be seen from the figure that the valve seat 2 is fixed to the valve body 1, the valve seat 2 and the butterfly plate 5 are both made of steel plates with a certain thickness, so that they have sufficient rigidity to withstand the temperature deformation and wear during the operation of the valve, and the sealing plate 3 is made of stainless steel sheet with good corrosion resistance. In the course of the work, dress is at gasket 3 between gasket clamp plate 4 and butterfly plate 5, along with butterfly plate 5 makes rotary motion together under the effect of butterfly valve pivot 6, and there is an appropriate amount clearance butterfly plate 5 and disk seat 2 footpath in the pipeline, and when butterfly plate 5 closed, disk 5 area gasket 3 rotatory to disk seat 2 plane, and through the gasket 3 that produces the deformation can be sealed with the good laminating of disk seat 2. When the butterfly valve is closed, the sealing sheet 3 seals the gap between the valve seat 2 and the butterfly plate 5, so that the butterfly valve can cut off the medium (smoke) after being closed. This butterfly valve is equipped with compensation and deformable gasket 3, therefore its disk seat 2 all need not seal the processing with the excircle of butterfly plate 5, carry out necessary adjustment to locking bolt group 7 when the assembly can for the butterfly valve alright reach a good assembly precision when production, satisfy the sealed operating requirement of butterfly valve. Because the rigidity of sealing fin 3 is low, when the butterfly valve was closed, sealing fin 3 can compensate the inconsistent defect of disk 5 cooperation in the manufacturing process through the deformation, has reached the purpose of sealed flue gas.
The blanking preparation of butterfly plate 5 and gasket 3 all relies on laser cutting machine, and the heat absorption during its cutting is few, and it is little to warp, provides the guarantee for sealing device's compensation ability. Because the machining of butterfly valve is few (hardly), therefore manufacturing cost is relative low, and valve use enterprise also likes to use, and market potential is big.
The above description is only a non-limiting embodiment of the present invention, and many embodiments can be derived, and it will be apparent to those skilled in the art that many modifications and improvements can be made without departing from the inventive concept and without making creative efforts, and these embodiments are all within the protection scope of the present invention.
Claims (3)
1. A compensated seal flue gas butterfly valve sealing device, comprising: valve body (1), disk seat (2), gasket (3), gasket clamp plate (4), butterfly plate (5), butterfly valve pivot (6) and locking bolt group (7), its characterized in that: a valve seat (2) in the device is fixed on a valve body (1), a sealing sheet (3) is arranged between a sealing sheet pressing plate (4) and a butterfly plate (5) and locked by a locking bolt group (7), and the sealing sheet (3) rotates along with the butterfly plate (5) under the action of a butterfly valve rotating shaft (6).
2. The seal-compensating flue gas butterfly valve sealing device of claim 1, wherein: the adjustment of the sealing compensation degree in the device is only needed by carrying out necessary adjustment on the locking bolt group (7).
3. The seal-compensating flue gas butterfly valve sealing device of claim 1, wherein: the sealing plate (3) in the device is made of a stainless steel sheet with good corrosion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121088010.7U CN215334537U (en) | 2021-05-20 | 2021-05-20 | Flue gas butterfly valve sealing device with compensation sealing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121088010.7U CN215334537U (en) | 2021-05-20 | 2021-05-20 | Flue gas butterfly valve sealing device with compensation sealing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334537U true CN215334537U (en) | 2021-12-28 |
Family
ID=79547237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121088010.7U Active CN215334537U (en) | 2021-05-20 | 2021-05-20 | Flue gas butterfly valve sealing device with compensation sealing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334537U (en) |
-
2021
- 2021-05-20 CN CN202121088010.7U patent/CN215334537U/en active Active
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