CN215214896U - Nuclear power conventional island inclined petal type steam extraction check valve structure with full-stroke position indication function - Google Patents
Nuclear power conventional island inclined petal type steam extraction check valve structure with full-stroke position indication function Download PDFInfo
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- CN215214896U CN215214896U CN202120595122.5U CN202120595122U CN215214896U CN 215214896 U CN215214896 U CN 215214896U CN 202120595122 U CN202120595122 U CN 202120595122U CN 215214896 U CN215214896 U CN 215214896U
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Abstract
The utility model belongs to a connecting method of dissimilar materials, in particular to a nuclear power conventional island inclined petal type steam extraction check valve structure with a full stroke position indication. The utility model provides a take conventional island inclined lamella formula of nuclear power check valve structure of drawing steam of full stroke position indication, includes the valve body, sets up the linkage shift fork in the valve body, is equipped with the flange of taking the aperture on the linkage shift fork, the flange and the valve clack fixed connection of taking the aperture. This neotype effect that is showing is: the valve has the advantages that the structure with the full-stroke position indication is utilized, the stroke of the valve clack can be read, and whether the action of the valve clack is abnormal or not can be found in time, so that the abnormal reason of the valve can be judged, and the valve has the advantages of simple structure and accurate position indication.
Description
Technical Field
The utility model belongs to the check valve structure, concretely relates to take conventional island inclined lamella formula steam extraction check valve structure of full stroke position indication's nuclear power.
Background
An existing conventional island inclined flap type steam extraction check valve for nuclear power, as shown in fig. 1, a common inclined flap type steam extraction check valve cannot accurately read any opening position of a valve flap or only read a full-closed position or a full-closed position, and cannot judge whether the valve state is normal or not according to the action condition of the valve flap.
SUMMERY OF THE UTILITY MODEL
The novel content is to provide a conventional island inclined petal type steam extraction check valve structure with a full stroke position indication aiming at the defects of the prior art.
This is novel to realize like this: the utility model provides a take conventional island inclined lamella formula of nuclear power check valve structure of drawing steam of full stroke position indication, includes the valve body, sets up the linkage shift fork in the valve body, is equipped with the flange of taking the aperture on the linkage shift fork, the flange and the valve clack fixed connection of taking the aperture.
The conventional island inclined-lobe steam extraction check valve structure with the full-stroke position indication function is characterized in that: the rotating angle range of the flange with the opening degree is 20-40 degrees.
The conventional island inclined-lobe steam extraction check valve structure with the full-stroke position indication function is characterized in that: the rotation angle of the flange with the opening degree is 25.58 degrees.
The conventional island inclined-lobe steam extraction check valve structure with the full-stroke position indication function is characterized in that: the flange with the opening degree is provided with a position indicating needle.
The conventional island inclined-lobe steam extraction check valve structure with the full-stroke position indication function is characterized in that: the linkage shifting fork further comprises a valve shaft, the top end of the valve shaft is fixedly connected with the flange with the opening degree, and the bottom end of the valve shaft is arranged on the valve clack.
The conventional island inclined-lobe steam extraction check valve structure with the full-stroke position indication function is characterized in that: the linkage shifting fork further comprises an indication rotating shaft, the valve shaft is arranged around the indication rotating shaft, and the top end of the indication rotating shaft is fixedly connected with the position indication needle.
The conventional island inclined-lobe steam extraction check valve structure with the full-stroke position indication function is characterized in that: and sealing parts are arranged around the linkage shifting fork.
This neotype effect that is showing is: the valve has the advantages that the structure with the full-stroke position indication is utilized, the stroke of the valve clack can be read, and whether the action of the valve clack is abnormal or not can be found in time, so that the abnormal reason of the valve can be judged, and the valve has the advantages of simple structure and accurate position indication.
Drawings
Fig. 1 is a schematic view of the internal structure of a conventional oblique flap check valve.
Fig. 2 is a schematic view of the internal structure and opening angle of a full stroke position indicating inclined flap type steam extraction check valve.
FIG. 3 is a schematic diagram of the external configuration of a full travel position indicating inclined lobe type steam extraction check valve
FIG. 4 is a schematic view of the check valve opening angle.
FIG. 5 is a schematic view of the transmission configuration with a full travel position indicating inclined lobe type steam extraction check valve
FIG. 6 is a partial enlarged view of FIG. 5
FIG. 7 is a perspective view of FIG. 6
FIG. 8 is a schematic view of a ganged fork
FIG. 9 is a schematic view of an indicating spindle
FIG. 10 is a schematic view of a valve flap
Wherein, 1, valve body, 2, position pointer, 3, flange with opening degree, 4, valve shaft, 5, indication rotating shaft, 6, shaft sleeve, 7, valve clack, 8, linkage shifting fork, 9, sealing element
Detailed Description
As shown in the attached drawings, the conventional island inclined-lobe steam extraction check valve structure with the full-stroke position indication function comprises: the valve comprises a valve body 1, a position indicator needle 2, a flange 3 with an opening degree, a valve shaft 4, an indicating rotating shaft 5, a shaft sleeve 6, a valve clack 7, a linkage shifting fork 8, a sealing piece 9 and the like.
As shown in fig. 2, the medium in the pipeline pushes the valve flap to open for a certain angle, and the linkage shifting fork and the valve flap synchronously drive the indicating rotating shaft to rotate, wherein the linkage shifting fork is in open self-aligning transmission, so that the phenomenon of dead hold caused by non-concentric rotation can be avoided.
The indicating rotating shaft is concentric with the shaft sleeve, the shaft sleeve does not rotate, the indicating rotating shaft rotates to drive the position indicating needle to synchronously rotate together, and the rotating position is indicated on the flange with the opening degree, so that the actual valve clack position is read or the valve clack action condition is observed. The advantages are small diameter of the indicating rotating shaft, low friction force, reliable sealing, only related to the rotation of the valve clack and no interference influence.
The foregoing detailed description is intended to be illustrative of the present patent and is not intended to be limiting, since any modifications and variations of the present patent are intended to fall within the spirit and scope of the appended claims.
Claims (7)
1. The utility model provides a take conventional island inclined lamella formula of nuclear power of full stroke position indication check valve structure of bleeding which characterized in that: the valve comprises a valve body (1), wherein a linkage shifting fork (8) is arranged in the valve body (1), a flange (3) with an opening degree is arranged on the linkage shifting fork (8), and the flange (3) with the opening degree is fixedly connected with a valve clack (7).
2. The nuclear power conventional island inclined-lobe steam extraction check valve structure with the full-stroke position indication of claim 1, characterized in that: the rotating angle range of the flange (3) with the opening degree is 20-40 degrees.
3. The nuclear power conventional island inclined-lobe steam extraction check valve structure with full-stroke position indication of claim 2, characterized in that: the rotating angle of the flange (3) with the opening degree is 25.58 degrees.
4. The nuclear power conventional island inclined-lobe steam extraction check valve structure with full-stroke position indication of claim 3, wherein: the flange (3) with the opening degree is provided with a position indicating needle (2).
5. The nuclear power conventional island inclined-lobe steam extraction check valve structure with full-stroke position indication of claim 4, wherein: the linkage shifting fork (8) further comprises a valve shaft (4), the top end of the valve shaft (4) is fixedly connected with the flange (3) with the opening degree, and the bottom end of the valve shaft (4) is arranged on the valve clack (7).
6. The nuclear power conventional island inclined-lobe steam extraction check valve structure with full-stroke position indication of claim 5, wherein: the linkage shifting fork (8) further comprises an indication rotating shaft (5), the valve shaft (4) is arranged around the indication rotating shaft (5), and the top end of the indication rotating shaft (5) is fixedly connected with the position indication needle (2).
7. The nuclear power conventional island inclined-lobe steam extraction check valve structure with full-stroke position indication of claim 6, wherein: sealing elements (9) are arranged around the linkage shifting fork (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120595122.5U CN215214896U (en) | 2021-03-24 | 2021-03-24 | Nuclear power conventional island inclined petal type steam extraction check valve structure with full-stroke position indication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120595122.5U CN215214896U (en) | 2021-03-24 | 2021-03-24 | Nuclear power conventional island inclined petal type steam extraction check valve structure with full-stroke position indication function |
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| CN215214896U true CN215214896U (en) | 2021-12-17 |
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| CN202120595122.5U Active CN215214896U (en) | 2021-03-24 | 2021-03-24 | Nuclear power conventional island inclined petal type steam extraction check valve structure with full-stroke position indication function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126911A (en) * | 2021-03-24 | 2022-09-30 | 中核苏阀科技实业股份有限公司 | Nuclear power conventional island inclined petal type steam extraction check valve structure with full-stroke position indication function |
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2021
- 2021-03-24 CN CN202120595122.5U patent/CN215214896U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126911A (en) * | 2021-03-24 | 2022-09-30 | 中核苏阀科技实业股份有限公司 | Nuclear power conventional island inclined petal type steam extraction check valve structure with full-stroke position indication function |
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