CN109961864A - Heavy water reactor fuel handling white-out station potentiometer protective device - Google Patents
Heavy water reactor fuel handling white-out station potentiometer protective device Download PDFInfo
- Publication number
- CN109961864A CN109961864A CN201711401258.2A CN201711401258A CN109961864A CN 109961864 A CN109961864 A CN 109961864A CN 201711401258 A CN201711401258 A CN 201711401258A CN 109961864 A CN109961864 A CN 109961864A
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- China
- Prior art keywords
- sealing
- plug
- potentiometer
- protective cover
- screw
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- 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.)
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to fuel for nuclear power plant operating technology fields, and in particular to a kind of heavy water reactor fuel handling white-out station potentiometer protective device.It is characterized by: it includes potentiometer tie-rod sealing circle, sealing-plug, sealing plug sealing ring, gasket, screw and protective cover；Sealing-plug is sleeved on potentiometric pull rod, realizes sealing by potentiometer tie-rod sealing circle between pull rod；The lower end of sealing-plug is fixedly connected by screw with protective cover；Sealing plug sealing ring is sleeved on sealing-plug, is sealed to the interconnecting piece between sealing-plug and protective cover；Gasket is sleeved on screw, is sealed to the interconnecting piece of screw and protective cover.Heavy water reactor fuel handling white-out station described in the present invention potentiometer protective device is safe and reliable, and easy to use, stability is strong; high financial profit; the risk for avoiding staff from being irradiated by unexpected dosage, it is ensured that operator's safety meets the normal operation of power station fuel handling equipment.
Description
Technical field
The invention belongs to fuel for nuclear power plant operating technology fields, and in particular to a kind of heavy water reactor fuel handling white-out station current potential
Count protective device.
Background technique
Two heavy water reactor units of Qinshan Phase II NPP, heavy water reactor advantage are exactly on-line refuelling, and refuelling system is related to a variety of set
It is standby, and with power station main system, heavy water, spentnuclear fuel direct interface, the careless slightly heavy water that will result in lets out, the events such as pollution workshop,
Wherein stock is double sets the key equipment that potentiometer is exactly fuel handling system, the operation of fuel manipulator crane feed bin Liquid level valve,
Analog signals are sent to master control room by potentiometer entirely, to confirm the normal opening and closing of valve, fuel manipulator crane operational process
In, it has a small amount of heavy water and hydraulic oil and leaks into potentiometer surface, once entering inside potentiometer, it is defeated to result in potentiometer
Signal drift out cannot normally show the switch state of valve, at the same will cause potentiometer damage, this potentiometer by foreign countries into
Mouthful, expensive, two heavy water reactor units have nearly 30 root long bar potentiometer.Exist in view of factors above, development one need to be opened
It is a to protect the potentiometric protective device of stock, and potentiometer and other equipment normal operation cannot be influenced, to ensure that fuel is grasped
Make the stable operation of system.
Summary of the invention
It is an object of the invention to develop a set of heavy water reactor fuel manipulator crane white-out station potentiometer protective device, can prevent from loading and unloading
Heavy water is leaked in material machine operational process and hydraulic oil enters potentiometer, it is ensured that potentiometer can operate normally, and feed back correct data, and
When confirm valve state, while the stock potentiometer service life can also be extended, save a large amount of foreign exchange funds for company.
The present invention is implemented as follows:
A kind of heavy water reactor fuel handling white-out station potentiometer protective device, including it is potentiometer tie-rod sealing circle, sealing-plug, close
Blocking sealing ring, gasket, screw and protective cover；Sealing-plug is sleeved on potentiometric pull rod, passes through current potential between pull rod
It counts tie-rod sealing circle and realizes sealing；The lower end of sealing-plug is fixedly connected by screw with protective cover；Sealing plug sealing ring is sleeved on
On sealing-plug, the interconnecting piece between sealing-plug and protective cover is sealed；Gasket is sleeved on screw, to screw and protection
The interconnecting piece of cover is sealed.
Protective cover generally cylindrical tube as described above, uniformly distributed on the side wall of upper end there are three fixation holes, for pacifying
Cartridge screw.
Sealing-plug as described above is generally annular, is divided into upper and lower two parts, the diameter of top edge and protective cover
Outer diameter matches, and the diameter of lower edge and the internal diameter of protective cover match；Lower part side circumference uniform distribution there are three mounting hole,
It is corresponding with the position of the fixation hole of protective cover, it is used for mounting screw；Sealing plug sealing ring is sleeved on the lower part of sealing-plug；Close
Blocking top center is provided with through-hole, and the diameter of through-hole diameter and potentiometric pull rod matches, for across potentiometer
Pull rod realizes the sealing between through-hole and pull rod by potentiometer tie-rod sealing circle.
Potentiometer tie-rod sealing circle, sealing plug sealing ring and gasket as described above are all made of rubber material and are made；It is close
Blocking is made of nylon material；Screw is made of stainless steel；Protective cover is made of organic glass.
The beneficial effects of the present invention are:
Heavy water reactor fuel handling white-out station described in the present invention potentiometer protective device is safe and reliable, easy to use, surely
It is qualitative strong, high financial profit, the risk for avoiding staff from being irradiated by unexpected dosage, it is ensured that operator's safety meets electricity
The normal operation for fuel handling equipment of standing creates domestic and international identical power station similar to stock potentiometer advanced level.
Detailed description of the invention
Fig. 1 is that heavy water reactor fuel handling white-out station potentiometer protective device of the invention is mounted on existing heavy water core combustion
Expect the structural schematic diagram at the heavy water white-out station in loading and unloading material system；
Fig. 2 is the structural schematic diagram of heavy water reactor fuel handling white-out station potentiometer protective device of the invention.
Wherein: 1. fuel manipulator crane low pressure drain valves, 2. potentiometer protective devices, 3. potentiometers, 4. cylinders, 5. heavy water white-outs
It stands, 6. potentiometer tie-rod sealing circles, 7. sealing-plugs, 8. sealing plug sealing rings, 9. gaskets, 10. screws, 11. protective covers.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, heavy water reactor fuel handling white-out station potentiometer protective device of the invention is mounted on existing heavy water
On heavy water white-out station 5 in core fuel handling material system, heavy water white-out station 5 includes fuel manipulator crane low pressure drain valve 1, potentiometer
3 and cylinder 4,2 integral installation of potentiometer protective device is on potentiometer 3.
As shown in Fig. 2, a kind of heavy water reactor fuel handling white-out station potentiometer protective device, including potentiometer tie-rod sealing circle
6, sealing-plug 7, sealing plug sealing ring 8, gasket 9, screw 10 and protective cover 11.Sealing-plug 7 is sleeved on the pull rod of potentiometer 3
On, sealing is realized by potentiometer tie-rod sealing circle 6 between pull rod.The lower end of sealing-plug 7 passes through screw 10 and protective cover 11
It is fixedly connected.Sealing plug sealing ring 8 is sleeved on sealing-plug 7, is carried out to the interconnecting piece between sealing-plug 7 and protective cover 11 close
Envelope.Gasket 9 is sleeved on screw 10, is sealed to the interconnecting piece of screw 10 and protective cover 11.
The generally cylindrical tube of protective cover 11, uniformly distributed on the side wall of upper end there are three fixation holes, are used for mounting screw 10.
Sealing-plug 7 is generally annular, is divided into upper and lower two parts, the outer diameter phase of the diameter and protective cover 11 of top edge
Matching, the internal diameter of the diameter and protective cover 11 of lower edge match.There are three mounting holes for side circumference uniform distribution in lower part, with guarantor
The position of the fixation hole of shield 11 is corresponding, is used for mounting screw 10.Sealing plug sealing ring 8 is sleeved on the lower part of sealing-plug 7.?
7 top center of sealing-plug is provided with through-hole, and the diameter of through-hole diameter and the pull rod of potentiometer 3 matches, for across electricity
Position meter pull rod realizes the sealing between through-hole and pull rod by potentiometer tie-rod sealing circle 6.
In the present embodiment, potentiometer tie-rod sealing circle 6, sealing plug sealing ring 8 and gasket 9 are all made of rubber material system
At.Sealing-plug 7 is made of nylon material.Screw 10 is made of stainless steel.Protective cover 11 is made of organic glass.
The course of work of the invention is as follows:
1. unscrew the connection pull ring that 3 top of potentiometer is connected with 4 piston rod of cylinder, by good 11 sets of protective cover of processing and fabricating
Enter.
2. sealing-plug 7 is packed into 3 pull rod of potentiometer, make 11 3 fixation hole phases of three mounting holes of its circumferential edge and protective cover
Alignment, is then tightened with fixing screws 10 and is sealed using gasket 9.
3. being installed in the through-hole of sealing-plug 7 after potentiometer tie-rod sealing circle 6 is passed through 3 pull rod of potentiometer, and utilize electricity
The fixing screws and gasket of position meter pull rod itself compress it.
4. time dress potentiometer 3 connects pull ring, pull rod connect with 3 stock of potentiometer, then by the connection pull ring of potentiometer 3 and
Driving 4 piston of cylinder is connected and tightens.
5. 4 piston rod of cylinder drives 3 pull rod of potentiometer in the process up and down when cylinder 4 drives fuel manipulator crane low pressure drain valve 1
It moves up and down, 3 pull rod of potentiometer drives potentiometer protective device 2 to move up and down.
Fuel handling system occurs to cause current potential by heavy water and hydraulic fluid leak never again after being mounted with the present invention
Voltage drift is counted, causes the not reciprocity event of valve state to occur, saves a large amount of foreign exchanges every year for company, reduce power station and be produced into
This, it is ensured that the stable operation of fuel handling equipment.
Implementation method of the invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-mentioned realities
Example is applied, it within the knowledge of a person skilled in the art, can also be without departing from the purpose of the present invention
Various changes can be made.The content that description in the present invention is not described in detail can use the prior art.
Claims (4)
1. a kind of heavy water reactor fuel handling white-out station potentiometer protective device, it is characterised in that: it includes potentiometer tie-rod sealing
Enclose (6), sealing-plug (7), sealing plug sealing ring (8), gasket (9), screw (10) and protective cover (11)；Sealing-plug (7) suit
On the pull rod of potentiometer (3), sealing is realized by potentiometer tie-rod sealing circle (6) between pull rod；The lower end of sealing-plug (7)
It is fixedly connected by screw (10) with protective cover (11)；Sealing plug sealing ring (8) is sleeved on sealing-plug (7), to sealing-plug (7)
Interconnecting piece between protective cover (11) is sealed；Gasket (9) is sleeved on screw (10), to screw (10) and protective cover
(11) interconnecting piece is sealed.
2. heavy water reactor fuel handling white-out station according to claim 1 potentiometer protective device, it is characterised in that: described
Protective cover (11) generally cylindrical tube, uniformly distributed on the side wall of upper end there are three fixation holes, are used for mounting screw (10).
3. heavy water reactor fuel handling white-out station according to claim 2 potentiometer protective device, it is characterised in that: described
Sealing-plug (7) is generally annular, is divided into upper and lower two parts, and the outer diameter of the diameter and protective cover (11) of top edge matches,
The diameter of lower edge and the internal diameter of protective cover (11) match；There are three mounting holes for side circumference uniform distribution in lower part, with protection
The position for covering the fixation hole of (11) is corresponding, is used for mounting screw (10)；Sealing plug sealing ring (8) is sleeved on sealing-plug (7)
Lower part；Sealing-plug (7) top center is provided with through-hole, the diameter of through-hole diameter and the pull rod of potentiometer (3) matches,
For passing through potentiometer pull rod, the sealing between through-hole and pull rod is realized by potentiometer tie-rod sealing circle (6).
4. heavy water reactor fuel handling white-out station according to claim 1 potentiometer protective device, it is characterised in that: described
Potentiometer tie-rod sealing circle (6), sealing plug sealing ring (8) and gasket (9) are all made of rubber material and are made；Sealing-plug (7) is adopted
It is made of nylon material；Screw (10) is made of stainless steel；Protective cover (11) is made of organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401258.2A CN109961864A (en) | 2017-12-22 | 2017-12-22 | Heavy water reactor fuel handling white-out station potentiometer protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401258.2A CN109961864A (en) | 2017-12-22 | 2017-12-22 | Heavy water reactor fuel handling white-out station potentiometer protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109961864A true CN109961864A (en) | 2019-07-02 |
Family
ID=67018944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711401258.2A Pending CN109961864A (en) | 2017-12-22 | 2017-12-22 | Heavy water reactor fuel handling white-out station potentiometer protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109961864A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755462A (en) * | 2022-03-09 | 2022-07-15 | 中核核电运行管理有限公司 | Frameless long single-rod double-set synchronous potentiometer |
| CN114755462B (en) * | 2022-03-09 | 2024-07-16 | 中核核电运行管理有限公司 | Frameless long single-rod double-arrangement synchronous potentiometer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2008131150A (en) * | 2008-07-28 | 2010-02-10 | Открытое акционерное общество "Новосибирский завод химконцентратов" (RU) | NUCLEAR REACTOR FUEL |
| CN203335854U (en) * | 2013-06-28 | 2013-12-11 | 科瑞(苏州工业园区)工业电子有限公司 | Sealing structure of photoelectric sensor potentiometer |
| CN104205252A (en) * | 2012-10-17 | 2014-12-10 | 皮扎托电气有限公司 | Protection assembly with an operating knob for an electrical potentiometer |
| CN104767046A (en) * | 2015-03-31 | 2015-07-08 | 四川中光防雷科技股份有限公司 | Thyristor type full-sealing type equipotential connector |
| CN106911117A (en) * | 2017-03-20 | 2017-06-30 | 上海汇珏网络通信设备有限公司 | A kind of antenna-feedback system connector protective device |
| CN207718838U (en) * | 2017-12-22 | 2018-08-10 | 中核核电运行管理有限公司 | Heavy water reactor fuel handling white-out station potentiometer protective device |
-
2017
- 2017-12-22 CN CN201711401258.2A patent/CN109961864A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2008131150A (en) * | 2008-07-28 | 2010-02-10 | Открытое акционерное общество "Новосибирский завод химконцентратов" (RU) | NUCLEAR REACTOR FUEL |
| CN104205252A (en) * | 2012-10-17 | 2014-12-10 | 皮扎托电气有限公司 | Protection assembly with an operating knob for an electrical potentiometer |
| CN203335854U (en) * | 2013-06-28 | 2013-12-11 | 科瑞(苏州工业园区)工业电子有限公司 | Sealing structure of photoelectric sensor potentiometer |
| CN104767046A (en) * | 2015-03-31 | 2015-07-08 | 四川中光防雷科技股份有限公司 | Thyristor type full-sealing type equipotential connector |
| CN106911117A (en) * | 2017-03-20 | 2017-06-30 | 上海汇珏网络通信设备有限公司 | A kind of antenna-feedback system connector protective device |
| CN207718838U (en) * | 2017-12-22 | 2018-08-10 | 中核核电运行管理有限公司 | Heavy water reactor fuel handling white-out station potentiometer protective device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755462A (en) * | 2022-03-09 | 2022-07-15 | 中核核电运行管理有限公司 | Frameless long single-rod double-set synchronous potentiometer |
| CN114755462B (en) * | 2022-03-09 | 2024-07-16 | 中核核电运行管理有限公司 | Frameless long single-rod double-arrangement synchronous potentiometer |
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