CN210860018U - Wall penetrating assembly of valve remote transmission mechanism of nuclear power plant - Google Patents
Wall penetrating assembly of valve remote transmission mechanism of nuclear power plant Download PDFInfo
- Publication number
- CN210860018U CN210860018U CN201921331250.8U CN201921331250U CN210860018U CN 210860018 U CN210860018 U CN 210860018U CN 201921331250 U CN201921331250 U CN 201921331250U CN 210860018 U CN210860018 U CN 210860018U
- Authority
- CN
- China
- Prior art keywords
- power plant
- nuclear power
- outer sleeve
- valve
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a valve teletransmission mechanism of nuclear power plant wears wall subassembly, include: the inner part of the outer sleeve is provided with a transmission shaft, and the inner holes at the two ends of the outer sleeve are provided with bearings which are used for supporting the transmission shaft to rotate; the external thread sleeves are arranged on the outer sides of the left end and the right end of the outer sleeve, the gland is fixedly arranged on the left external thread sleeve, and the connecting flange is fixedly arranged on the right external thread sleeve; the adjusting nuts are arranged on two sides and are respectively matched with the external thread sleeves on the outer sides of the left end and the right end of the outer sleeve; the valve position indicating assembly is fixed on the connecting flange and used for indicating the opening or closing state of the valve so as to guide an operator to operate correctly; wherein, sealing elements are arranged between the transmission shaft and the gland, between the outer sleeve and the connecting flange. Compared with the prior art, the utility model discloses the valve teletransmission mechanism of nuclear power plant wears wall subassembly construction degree of difficulty little, positioning accuracy is high, each part matches the installation nature good, simple to operate.
Description
Technical Field
The utility model belongs to the non-mark mechanical equipment field of nuclear power plant, more specifically says, the utility model relates to a wall subassembly is worn to valve teletransmission mechanism of nuclear power plant.
Background
The valve is one of the most widely used devices in a nuclear power plant, is used as a control component in a fluid conveying system, and has the functions of diversion, cut-off, regulation, throttling and the like. The valve remote transmission mechanism is a mechanical transmission mechanism which transmits the force on an electric or pneumatic actuator or a hand wheel to a valve rod (or a valve rod nut) to enable the valve to complete the opening and closing functions. Valves in areas of nuclear power plants where the radiation dose is high or where the operator is not convenient to operate are typically actuated by the provision of a valve telemetry mechanism.
The valve remote transmission mechanism is provided with a wall penetrating component at the position of a wall penetrating hole, and the wall penetrating component mainly plays roles of supporting shaft transmission and radiation shielding and is an important part in the valve remote transmission mechanism.
The wall penetrating component of the valve remote transmission mechanism of the nuclear power plant adopts a scheme of combining a wall penetrating pipe and a shielding plug, and the construction process comprises the following steps: the construction method comprises the steps of firstly pre-embedding the through-wall pipe when concrete is poured once in a civil engineering construction stage, then welding and fixing the shielding plug, the connecting flange and the through-wall pipe in an equipment installation stage, and further installing the driving shaft, the transmission shaft assembly and the bearing. But the difficulty is big, positioning accuracy is poor, the problem that the shield plug can not be matched with the wall pipe easily appears in the work progress.
In view of this, it is necessary to provide a through-wall assembly of a valve remote transmission mechanism in a nuclear power plant, which has the advantages of low construction difficulty, high positioning accuracy, good matching and installation performance of all components, and convenience in installation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the defects of the prior art are overcome, and the through-wall assembly of the valve remote transmission mechanism of the nuclear power plant, which has the advantages of small construction difficulty, high positioning precision, good matching and installation performance of all parts and convenience in installation, is provided.
In order to realize the above-mentioned purpose, the utility model provides a valve teletransmission mechanism of nuclear power plant wears wall subassembly, include:
the inner part of the outer sleeve is provided with a transmission shaft, and the inner holes at the two ends of the outer sleeve are provided with bearings which are used for supporting the transmission shaft to rotate;
the external thread sleeves are arranged on the outer sides of the left end and the right end of the outer sleeve, the gland is fixedly arranged on the left external thread sleeve, and the connecting flange is fixedly arranged on the right external thread sleeve;
the adjusting nuts are arranged on two sides and are respectively matched with the external thread sleeves on the outer sides of the left end and the right end of the outer sleeve; and
the valve position indicating assembly is fixed on the connecting flange and used for indicating the opening or closing state of the valve so as to guide an operator to operate correctly;
wherein, sealing elements are arranged between the transmission shaft and the gland, between the outer sleeve and the connecting flange.
As an improvement of the utility model discloses the wall subassembly is worn to valve teletransmission mechanism of nuclear power plant, the fixed support component that is provided with in both sides about the outer tube.
As an improvement of the utility model discloses the wall subassembly is worn to valve teletransmission mechanism of nuclear power plant, the support component welded fastening both sides about the outer tube middle part.
As the utility model discloses the improvement of the valve teletransmission mechanism wall subassembly of nuclear power plant, the bearing is self-lubricating structure's bearing.
As an improvement of the utility model discloses the valve teletransmission mechanism of nuclear power plant wears wall subassembly, the sealing member is O shape sealing washer, packing seal or felt seal.
As the utility model discloses the improvement of the valve teletransmission mechanism wall subassembly of nuclear power plant, the valve position is instructed the subassembly and is passed through the bolt fastening and be in flange is last.
As a modification of the utility model discloses the wall subassembly is worn to valve teletransmission mechanism of nuclear power plant, the gland with flange respectively with the external screw thread cover passes through the bolt fastening.
As an improvement of the utility model discloses the wall subassembly is worn to valve teletransmission mechanism of nuclear power plant, the outer tube with radial interval is 2 ~ 4mm between the transmission shaft.
As the utility model discloses the improvement of the valve teletransmission mechanism wall subassembly of nuclear power plant, transmission shaft both ends processing has pinhole, key or square head.
As the utility model discloses the improvement of the valve teletransmission mechanism wall penetrating component of nuclear power plant, adjusting nut is circular area tooth's socket structure.
Compared with the prior art, the utility model discloses nuclear power plant's valve teletransmission mechanism wears wall subassembly has following beneficial technological effect:
1) the positioning precision is high, and the adaptability adjustment can be carried out according to the integral installation condition of the remote transmission mechanism;
2) the wall penetrating assembly can be assembled by an equipment manufacturer and integrally constructed on site, so that the difficulty of site construction is effectively reduced;
3) the problem that the components cannot be installed in a matching mode due to large size deviation is avoided;
4) through setting up the rotation that self-lubricating bearing supported the transmission shaft, need not to add emollient, overall structure size is little.
Drawings
The following combines attached drawing and embodiment to describe in detail the utility model discloses nuclear power plant valve teletransmission mechanism wears the wall subassembly, wherein:
fig. 1 is the utility model discloses the structure schematic diagram of the valve teletransmission mechanism wall subassembly of nuclear power plant.
Fig. 2 is the utility model discloses the structure schematic diagram of the valve teletransmission mechanism wall subassembly adjusting nut of nuclear power plant.
Fig. 3 is the utility model discloses the construction process diagram of the valve teletransmission mechanism wall subassembly of nuclear power plant.
The attached drawings are marked as follows: 10-outer sleeve; 12-a drive shaft; 14-a bearing; 16-an external thread sleeve; 18-a gland; 20-a connecting flange; 22-adjusting the nut; 220-gullet; 24-a valve position indicating assembly; 26-a seal; 28-a support member; 30-primary concrete; 32-secondary concrete; 34-scaffolding; 36-a pouring gate; 38-exhaust port.
Detailed Description
In order to make the purpose, technical solution and technical effect of the present invention clearer, the following description will proceed with further detailed description in conjunction with the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and not limitation.
In the description of the present invention, it should be noted that unless otherwise specified, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships only for the convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention.
The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the product of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Referring to fig. 1 to 3, the utility model discloses a valve remote transmission mechanism wall penetrating component of nuclear power plant includes:
the inner part of the outer sleeve 10 is provided with a transmission shaft 12, inner holes at two ends of the outer sleeve are provided with bearings 14, and the bearings 14 are used for supporting the transmission shaft 12 to rotate;
the external thread sleeves 16 are arranged at the outer sides of the left end and the right end of the outer sleeve 10, the gland 18 is fixedly arranged on the left external thread sleeve 16, and the connecting flange 20 is fixedly arranged on the right external thread sleeve 16;
adjusting nuts 22 arranged at both sides and respectively matched with the external thread sleeves 16 at the outer sides of the left and right ends of the outer sleeve; and
a valve position indicating assembly 24 fixed on the connecting flange 20 for indicating the open or close state of the valve to guide the operator to operate correctly;
wherein, sealing elements 26 are arranged between the transmission shaft 12 and the gland 18, the outer sleeve 10 and the connecting flange 20.
The outer sleeve 10 is a steel pipe, the middle of the outer sleeve is of a hollow structure, the outer sleeve is pre-embedded when primary concrete 30 is poured in a civil engineering construction stage, and two ends of the outer sleeve 10 are located on the outer side of the primary concrete 30.
In order to facilitate the installation of the bearing 14, a stepped structure for installing the bearing 14 is provided at inner holes of left and right ends of the outer sleeve 10, and one bearing 14 is provided at each of the left and right ends.
The transmission shaft 12 is arranged in the outer sleeve 10 in a penetrating way, two ends of the transmission shaft are respectively supported in bearings 14 on two sides, and the bearings 14 are arranged in the step structure and are used for supporting the transmission shaft 12 to rotate. Preferably, the bearing 14 is a self-lubricating bearing, and no lubricant is required, thereby reducing the overall size of the structure.
Further, the two ends of the transmission shaft 12 may be further processed with pin holes, keys or square heads for facilitating connection with a part for driving the transmission shaft or an output motion part (other parts of the valve remote transmission mechanism) to transmit power.
Furthermore, the radial distance between the outer sleeve 10 and the transmission shaft 12 is 2-4 mm, so that radiation can be effectively shielded.
Two external thread sleeves 16 are arranged and respectively welded and fixed at the outer sides of the left end and the right end of the outer sleeve 10. Specifically, mounting portions having a stepped structure are formed on outer sides of left and right ends of the outer sleeve 10, and the external thread sleeve 16 is fixed to the outer sleeve 10 by welding after being mounted on the stepped portions.
Through holes for the transmission shaft 12 to pass through are formed in the middle of the gland 18 and the connecting flange 20, and in order to facilitate disassembly, the gland 18 is fixed on the left external thread sleeve 16 through bolts and abuts against the outer side of the left bearing 14 to fix the left bearing 14; the attachment flange 20 is bolted to the right externally threaded sleeve 16 and abuts the outside of the right bearing 14 to prevent axial play of the left and right bearings 14.
With continued reference to fig. 1 and 2, two adjusting nuts 22 are provided, which are respectively disposed on the left and right sides of the wall penetrating component and are matched with the external thread sleeves 16 for adjusting the axial position of the wall penetrating component. Further, the adjusting nut 22 is a circular toothed groove 220, the toothed groove 220 is uniformly arranged along the circumference, and the through-wall assembly can be screwed by a special tool after being poured and fixed for the second time.
Specifically, the external thread bushing 16 is provided with a screw portion in the axial direction that is adapted to the adjustment nut 22, and the adjustment nut 22 is movable left and right on the screw portion of the external thread bushing 16 for adjusting the axial position of the wall penetrating assembly.
The valve position indicating assembly 24 is fixed on the connecting flange 20 through bolts and is used for indicating the opening or closing state of the valve so as to guide an operator to operate correctly; the valve position indicating assembly 24 may be an angular travel manual remote valve position indicator, and the specific structure refers to patent CN201621376684.6, which is suitable for angular travel valves; the valve position indicating assembly 24 may also be a straight-stroke manual remote valve position indicator, and please refer to patent CN201621384725.6 for specific structure, which is suitable for a straight-stroke valve, and the valve position indicating assembly 24 indicates the open or close state of the valve to guide the operator to operate correctly.
In order to ensure the sealing performance of the wall-penetrating assembly, sealing elements 26 are arranged between the transmission shaft 12 and the gland 18, between the transmission shaft 12 and the outer sleeve 10, and between the transmission shaft 12 and the connecting flange 20, wherein the sealing elements 26 are preferably O-ring seals, which may be replaced by other sealing forms such as packing seals and felt seals. Sealing against dust is effectively achieved by providing seals 26 between the drive shaft 12 and the gland 18, outer sleeve 10 and attachment flange 20.
Further, the upper and lower sides of the outer sleeve 10 are fixedly provided with support parts 28, preferably, the support parts 28 are strip-shaped structures and are provided with two sections, and the two sections of support parts 28 are respectively welded and fixed on the upper and lower sides of the middle part of the outer sleeve 10 and are used for preventing the wall-through assembly from rotating after the secondary concrete 32 is poured, so that the bearing capacity of the wall-through assembly is enhanced.
Please refer to fig. 3, the utility model discloses the whole construction is carried out on the scene after the equipment to the valve teletransmission mechanism wall subassembly of nuclear power plant, and concrete work progress is as follows:
1) the left gland 18 and the adjusting nut 22 are detached, the wall penetrating component penetrates into a wall hole formed by pouring primary concrete 30 from right to left, the left gland 18 and the adjusting nut 22 are installed, and a scaffold 34 is built to support the wall penetrating component to achieve accurate positioning;
2) connecting the wall penetrating component with other remote transmission components, adjusting the axial position of the wall penetrating component through the adjusting nuts 22 at two sides to compensate the installation deviation of the valve remote transmission mechanism, and locking the adjusting nuts 22 at two sides of the wall penetrating component after all the components are connected;
3) the secondary concrete 32 is poured from the pouring gate 36 and is vented through the vent 38 on the other side, and after pouring is complete, the pouring gate 36 and vent 38 are removed.
Compared with the prior art, the utility model discloses nuclear power plant's valve teletransmission mechanism wears wall subassembly has following beneficial technological effect:
1) the positioning precision is high, and the adaptability adjustment can be carried out according to the integral installation condition of the remote transmission mechanism;
2) the wall penetrating assembly can be assembled by an equipment manufacturer and integrally constructed on site, so that the difficulty of site construction is effectively reduced;
3) the problem that the components cannot be installed in a matching mode due to large size deviation is avoided;
4) through setting up the rotation that self-lubricating bearing supported the transmission shaft, need not to add emollient, overall structure size is little.
According to the above principle, the present invention can also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. The utility model provides a valve teletransmission mechanism of nuclear power plant wears wall subassembly which characterized in that includes:
the inner part of the outer sleeve is provided with a transmission shaft, and the inner holes at the two ends of the outer sleeve are provided with bearings which are used for supporting the transmission shaft to rotate;
the external thread sleeves are arranged on the outer sides of the left end and the right end of the outer sleeve, the gland is fixedly arranged on the left external thread sleeve, and the connecting flange is fixedly arranged on the right external thread sleeve;
the adjusting nuts are arranged on two sides and are respectively matched with the external thread sleeves on the outer sides of the left end and the right end of the outer sleeve; and
the valve position indicating assembly is fixed on the connecting flange and used for indicating the opening or closing state of the valve so as to guide an operator to operate correctly;
wherein, sealing elements are arranged between the transmission shaft and the gland, between the outer sleeve and the connecting flange.
2. The nuclear power plant valve remote-transmission mechanism wall-penetrating assembly according to claim 1, wherein support members are fixedly arranged on the upper side and the lower side of the outer sleeve.
3. The nuclear power plant valve remote-transmission mechanism wall-penetrating component according to claim 2, wherein the supporting parts are welded and fixed on the upper and lower sides of the middle part of the outer sleeve.
4. The nuclear plant valve remote transmission mechanism through-wall assembly according to claim 1, wherein the bearing is a self-lubricating bearing.
5. The nuclear plant valve remote transmission mechanism through-wall assembly according to claim 1, wherein the seal is an O-ring seal, a stuffing seal or a felt seal.
6. The nuclear power plant valve remote-transmission mechanism through-wall component according to claim 1, wherein the valve position indicating component is fixed on the connecting flange through bolts.
7. The nuclear power plant valve remote-transmission mechanism wall-penetrating component according to claim 1, wherein the gland and the connecting flange are respectively fixed with the external thread sleeve through bolts.
8. The nuclear power plant valve remote-transmission mechanism wall-penetrating component according to claim 1, wherein a radial distance between the outer sleeve and the transmission shaft is 2-4 mm.
9. The nuclear power plant valve remote transmission mechanism through-wall assembly according to claim 8, wherein pin holes, keys or square heads are machined at both ends of the transmission shaft.
10. The nuclear power plant valve remote transmission mechanism through-wall assembly according to claim 1, wherein the adjusting nut is of a circular toothed groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921331250.8U CN210860018U (en) | 2019-08-13 | 2019-08-13 | Wall penetrating assembly of valve remote transmission mechanism of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921331250.8U CN210860018U (en) | 2019-08-13 | 2019-08-13 | Wall penetrating assembly of valve remote transmission mechanism of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210860018U true CN210860018U (en) | 2020-06-26 |
Family
ID=71288122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921331250.8U Active CN210860018U (en) | 2019-08-13 | 2019-08-13 | Wall penetrating assembly of valve remote transmission mechanism of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210860018U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029667A (en) * | 2021-02-24 | 2021-06-25 | 中国核动力研究设计院 | Nuclear sampling valve operating mechanism and sampling method |
| CN114135648A (en) * | 2021-11-09 | 2022-03-04 | 中国核电工程有限公司 | Sealing power penetration assembly, sealing power penetration structure and construction method thereof |
| CN115092528A (en) * | 2022-07-07 | 2022-09-23 | 中国工程物理研究院总体工程研究所 | High-overload-resistant valve through-wall sealing connection structure |
-
2019
- 2019-08-13 CN CN201921331250.8U patent/CN210860018U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029667A (en) * | 2021-02-24 | 2021-06-25 | 中国核动力研究设计院 | Nuclear sampling valve operating mechanism and sampling method |
| CN114135648A (en) * | 2021-11-09 | 2022-03-04 | 中国核电工程有限公司 | Sealing power penetration assembly, sealing power penetration structure and construction method thereof |
| CN115092528A (en) * | 2022-07-07 | 2022-09-23 | 中国工程物理研究院总体工程研究所 | High-overload-resistant valve through-wall sealing connection structure |
| CN115092528B (en) * | 2022-07-07 | 2024-04-02 | 中国工程物理研究院总体工程研究所 | High overload resistant valve through-wall sealing connection structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210860018U (en) | Wall penetrating assembly of valve remote transmission mechanism of nuclear power plant | |
| US10132420B2 (en) | Electric-actuated choke apparatus and methods | |
| US4605031A (en) | Method of and device for repairing slide-valve spindles | |
| JPH0255678B2 (en) | ||
| CN113145936A (en) | Saw bit dismouting device convenient to long-range change operation | |
| CN111716069A (en) | Pipeline external butt-joint device and butt-joint welding method thereof | |
| CN117287548A (en) | Valve auxiliary device of hand-held electric operation gate valve and use method | |
| JP2649282B2 (en) | Non-stop water installation method such as fluid control valve and hermetic connection device | |
| JP3964385B2 (en) | Fedder device for installation method of continuous water type fluid control valve | |
| CN102203482A (en) | Collets for use with valves | |
| KR101872774B1 (en) | Valve body welding part cutting device | |
| KR101378209B1 (en) | Handle Gear Device installation of Double Acting Actuator type Control Valve | |
| CN206377336U (en) | The adjustable manual teletransmission valve position indicator of angle stroke | |
| JPH0738797Y2 (en) | Supporting device for cutting pipe in uninterrupted water mounting device of control valve | |
| JP2546383Y2 (en) | Auxiliary tools for fire hydrants | |
| CN219570893U (en) | Pneumatic double-eccentric butterfly valve | |
| RU163865U1 (en) | QUICK-VALVE VALVE | |
| JP4820844B2 (en) | Joint structure of power transmission shaft | |
| US4618169A (en) | Connecting mechanism for pole members | |
| JP2006125642A (en) | Fluid control valve connecting structure of existing pipe, and non-water suspension type fluid control valve installation method | |
| KR101795868B1 (en) | Multiple handling device for turbine valve actuator | |
| CN220337498U (en) | Right-angle stop valve | |
| KR20200118708A (en) | Apparatus for cutting seat ring of power plant valve | |
| KR102352147B1 (en) | The Plugging Tool for Bottom Mounted Instrumentation Nozzle | |
| CN221373532U (en) | Hydraulic locking device of rotary blowout preventer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |