CN105033931A - Disassembly and assembly tool of temperature probe for water pressure test of evaporator of nuclear power station - Google Patents
Disassembly and assembly tool of temperature probe for water pressure test of evaporator of nuclear power station Download PDFInfo
- Publication number
- CN105033931A CN105033931A CN201510501200.XA CN201510501200A CN105033931A CN 105033931 A CN105033931 A CN 105033931A CN 201510501200 A CN201510501200 A CN 201510501200A CN 105033931 A CN105033931 A CN 105033931A
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- temp probe
- handle
- probe sleeve
- nuclear power
- water pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention belongs to the technical field of nuclear power station overhaul, and provides a disassembly and assembly tool of a temperature probe for a water pressure test of an evaporator of a nuclear power station, in order to solve the problems that the operating efficiency of disassembly and assembly of the temperature probe for the water pressure test of the evaporator of the nuclear power station at present is low, and the exposure dose of operating personnel is high. The disassembly and assembly tool comprises a temperature probe sleeve and a handle, wherein the handle is connected with the temperature probe sleeve; a spring is arranged at one end, which is connected with the temperature probe sleeve, of the handle; a limitation plate is arranged at one end, far away from the temperature probe sleeve, of the spring; when the spring extends freely, the spring stretches into the temperature probe sleeve; a pull rope is arranged in the handle, passes through the limitation plate and the spring and penetrates through the handle; a pressure plate is arranged at one end, close to the temperature probe sleeve, of the pull rope; and a pull ring is arranged at one end, far away from the temperature probe sleeve, of the pull rope. With the adoption of the disassembly and assembly tool, the operating efficiency of the disassembly and assembly of the temperature probe is improved, and the exposure dose of the operating personnel during the operation is reduced.
Description
Technical field
The invention belongs to the technical field of nuclear power station maintenance, be specifically related to a kind of nuclear power plant evaporator water pressure test temp probe dismantling device.
Background technology
Evaporimeter is the heat-exchange apparatus in nuclear power station, and during nuclear power station refueling outage, evaporimeter needs to do the secondary side water pressure test, needs to install temp probe in primary side hydroecium, change with measuring tempeature in water pressure test process.Normally temp probe is installed on the tube sheet of primary side hydroecium at present, concrete installation process is: first operating personnel enter in evaporimeter primary side hydroecium, boron crystallization on erasing primary side hydroecium internal tube plate, because the water in primary side hydroecium is boron water, tube sheet has boron crystallization; Then adhesive plaster is used to be bonded on tube sheet by temp probe.The mouth of pipe in primary side hydroecium also may be used for installing temp probe, but operating personnel do not select temp probe to be installed in the mouth of pipe usually, because inner about 2m will be depended on relative to the position of tube sheet in the position of the mouth of pipe in primary side hydroecium, operating personnel also will walk the position that 2m just can go to the mouth of pipe after going to the position of tube sheet inwards, and be subject to the restriction in primary side hydroecium space, this segment distance from tube sheet to the mouth of pipe can only walk sideways through, walking is got up very inconvenient, cause the activity duration longer, so operating personnel do not select temp probe to be installed in the mouth of pipe usually.Also need to remove temp probe after the water pressure test completes, to avoid temp probe to enter in the steam turbine of next stage along with the medium in primary side hydroecium, damage is caused to steam turbine.When removing temp probe, operating personnel enter in primary side hydroecium, are disassembled by temp probe from tube sheet.
In primary side hydroecium, radiation is large, operating personnel in primary side hydroecium during operation in the unit interval radioactive dose high.When operating personnel install temp probe in primary side hydroecium, in order to reduce radioactive dose, all think that then temp probe installation goes out by some from primary side hydroecium soon, will be very hasty when such operating personnel install temp probe, easily make mistakes in busy, temp probe is not totally just bonded to the situation on tube sheet by the boron crystallization erasing on tube sheet by easy appearance, and walk comparatively fast in primary side hydroecium due to hasty operating personnel, easy generation slide fall injured.If temp probe is not totally just bonded on tube sheet by the boron crystallization erasing on tube sheet, bonding between temp probe with tube sheet is unstable, temp probe is easily from landing tube sheet, cause operating personnel from primary side hydroecium out after enter the temp probe reinstalling landing in primary side hydroecium again, operating personnel are namely needed to do over again, such one side adds the time that operating personnel install temp probe in primary side hydroecium, is easy to cause operating personnel's radioactive dose to exceed standard even out of control; Greatly reduce the efficiency of installing temp probe operation on the other hand, extend the duration, add drain on manpower and material resources.
Summary of the invention
In order to solve the problem that dismounting operating efficiency is low, operating personnel's radioactive dose is high of current nuclear power plant evaporator water pressure test temp probe, the present invention proposes a kind of nuclear power plant evaporator water pressure test temp probe dismantling device, to improve the efficiency of nuclear power plant evaporator water pressure test temp probe dismounting operation, reduce the radioactive dose of operating personnel in dismounting operation.
Nuclear power plant evaporator water pressure test temp probe dismantling device of the present invention comprises temp probe sleeve and handle; The sidewall of described temp probe sleeve is provided with connecting hole; Described handle is tubular structure, is communicated with described temp probe sleeve connection by the connecting hole of described temp probe sleeve lateral wall; One end of described handle and described temp probe sleeve connection is built-in with spring, this spring is provided with limiting plate away from one end of described temp probe sleeve, this limiting plate is fixed in described handle, stretches into described temp probe sleeve when described spring freely extends from the connecting hole of described temp probe sleeve lateral wall; Stay cord is provided with in described handle, this stay cord is through described limiting plate and described spring and run through described handle, described stay cord is provided with pressing plate near one end of described temp probe sleeve, described stay cord is provided with draw ring away from one end of described temp probe sleeve, and when pulling described draw ring, described pressing plate moves and compresses described spring.
Wherein, described handle tilts to be connected with described temp probe sleeve.
Wherein, described pressing plate is the arcuate structure can fitted with the inwall of described temp probe sleeve.
Wherein, one end that described stay cord is connected with described pressing plate is connected with contiguous block, and described stay cord is connected with described pressing plate by this contiguous block.
Wherein, described draw ring is circular, and diameter is greater than the diameter of described handle.
Wherein, described handle is provided with the first rotating handles away from one end of described temp probe sleeve.
Wherein, described handle is also provided with the second rotating handles, this second rotating handles is 1/3rd of described decreased food apart from the distance of described first rotating handles.
Nuclear power plant evaporator water pressure test temp probe dismantling device of the present invention has following beneficial effect:
When using instrument of the present invention that temp probe is installed, temp probe is fixed in temp probe sleeve of the present invention, then by tool rack of the present invention on manhole door, operating personnel stand in the position of manhole door external-adjuster instrument of the present invention, temp probe sleeve of the present invention to be moved to the position of the mouth of pipe, directly like this temp probe is inserted the installation just completing temp probe in the mouth of pipe, be installed on tube sheet compared to by temp probe, do not need to wipe the boron crystallization on tube sheet, save the time of erasing boron crystallization, avoid simultaneously by boron crystallization to affect temp probe bonding with tube sheet loosely and landing needs the situation of doing over again, thus improve operating efficiency, shorten the duration, decrease drain on manpower and material resources.
When using instrument of the present invention to mount and dismount temp probe, operating personnel are without the need to entering in primary side hydroecium, by tool rack of the present invention on the manhole door of primary side hydroecium, just can use instrument installation and removal temp probe of the present invention, in whole operation process, operating personnel need not enter in primary side hydroecium, such one side eliminates operating personnel and occurs sliding to fall injured risk in primary side hydroecium, greatly reduces the radioactive dose of operating personnel; Eliminate operating personnel's worrying in operation process on the other hand, make operating personnel be absorbed in the installation and removal of temp probe, improve the quality of temp probe installation and removal operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of nuclear power plant evaporator water pressure test temp probe dismantling device of the present invention;
Fig. 2 is the enlarged partial sectional view in A portion in Fig. 1.
Detailed description of the invention
Technical scheme of the present invention is introduced below in conjunction with accompanying drawing.
As shown in Figure 1, nuclear power plant evaporator water pressure test temp probe dismantling device comprises temp probe sleeve 10 and handle 11.The sidewall of temp probe sleeve 10 is provided with connecting hole, handle 11 is tubular structure, to be connected with temp probe sleeve 10 by the connecting hole of temp probe sleeve 10 sidewall and to be communicated with, as shown in FIG., handle 11 tilts to be connected with temp probe sleeve 10, and namely handle 11 is acute angle or obtuse angle with the angle of temp probe sleeve 10.Handle 11 is provided with the first rotating handles 18 away from one end of temp probe sleeve 10, this handle 11 is also provided with the second rotating handles 17, this second rotating handles 17 is 1/3rd of handle 11 length apart from the distance of the first rotating handles 18, this first rotating handles 18 and the second rotating handles 17 can be rectangle or circle, for person's turning handle 11 easy to use.
As shown in Figure 2, one end that handle 11 is connected with temp probe sleeve 10 is built-in with spring 12, this spring 12 is provided with limiting plate 16 away from one end of temp probe sleeve 10, this limiting plate 16 is fixed in handle 11, spring 12 is in generation elastic deformation process, limiting plate 16 withstands spring 12 this one end away from temp probe sleeve 10 to carry out spacing to spring 12, and the connecting hole near this one end of temp probe sleeve 10 from temp probe sleeve 10 sidewall when spring 12 freely extends stretches into temp probe sleeve 10.Stay cord 13 is provided with in handle 11, this stay cord 13 is through limiting plate 16 and spring 12 and run through handle 11, stay cord 13 is provided with pressing plate 15 near one end of temp probe sleeve 10, this pressing plate 15 is the arcuate structure can fitted with the inwall of temp probe sleeve 10, stay cord 13 is provided with draw ring 14 away from one end of temp probe sleeve 10, sees Fig. 1, and this draw ring 14 is circular, diameter is greater than the diameter of handle 11, and draw ring 14 also can be rectangle.When pulling draw ring 14, pressing plate 15 moves and Compress Spring 12 to the direction near draw ring 14, and elastic deformation occurs spring 12.Wherein, stay cord 13 can be steel wire rope.
Introduce the using method of nuclear power plant evaporator water pressure test temp probe dismantling device of the present invention below.
When using instrument of the present invention to install temp probe, the first step, pulls draw ring 14, and pressing plate 15 is moved and Compress Spring 12, temp probe is put into sleeve 10, and between the inwall being positioned over pressing plate 15 and sleeve 10, second step, unclamp draw ring 14, spring 12 produces restoring force, and by this restoring force, pressure is produced to pressing plate 15, pressing plate 15 pairs of temp probes produce pressure, thus are fixed in sleeve 10 by temp probe, and in this step, temp probe is that a part is arranged in sleeve 10, and another part is positioned at outside sleeve 10, 3rd step, operating personnel stand in outside the manhole door of primary side hydroecium, instrument of the present invention is stretched in primary side hydroecium by tool rack of the present invention on the manhole door of primary side hydroecium, by the first rotating handles 18 or the second rotating handles 17 rotary handle 11 to adjust the angle of nuclear power plant evaporator water pressure test temp probe dismantling device, after angle is suitable, temp probe is inserted in the mouth of pipe of primary side hydroecium, pull draw ring 14, pressing plate 15 is moved the pressure eliminating pressing plate 15 pairs of temp probes, fetch nuclear power plant evaporator water pressure test temp probe dismantling device, temp probe installation exercise completes.Wherein the size of temp probe coordinates with the size of the mouth of pipe of primary side hydroecium, and after temp probe being inserted the mouth of pipe of primary side hydroecium, temp probe can be stuck in the mouth of pipe, to be fixed in the mouth of pipe.
When using tool ejector temp probe of the present invention, the first step, operating personnel stand in outside the manhole door of primary side hydroecium, tool rack of the present invention is stretched in primary side hydroecium on the manhole door of primary side hydroecium, by the first rotating handles 18 or the second rotating handles 17 rotary handle 11 to adjust the angle of nuclear power plant evaporator water pressure test temp probe dismantling device of the present invention, after angle is suitable, sleeve 10 is placed on temp probe; Second step, pull draw ring 14, pressing plate 15 is moved, and between inwall temp probe being placed in pressing plate 15 and sleeve 10, unclamp draw ring 14, due to the effect of the restoring force of spring 12, pressing plate 15 pairs of temp probes produce pressure, at this moment nuclear power plant evaporator water pressure test temp probe dismantling device is used just temp probe can be extracted from the mouth of pipe, to complete the dismounting of temp probe.
Wherein, handle 11 tilts to be connected with temp probe sleeve 10, because the position of the mouth of pipe is higher than the position of manhole door in primary side hydroecium, and the direction of the mouth of pipe is horizontal direction or vertical direction in primary side hydroecium, so when tool rack of the present invention is carried out operation by operating personnel on the manhole door of primary side hydroecium, handle 11 is needed to tilt to carry out operation on the one hand, need temp probe sleeve 10 to be adjusted to vertical state or level on the other hand, to facilitate temp probe to insert in the mouth of pipe or from the mouth of pipe, temp probe is extracted, handle 11 of the present invention tilts to be connected with temp probe sleeve 10, like this after handle 11 tilts, easily temp probe sleeve 10 can be adjusted to vertical state or level, instrument of the present invention is used more convenient.
Handle 11 is provided with the first rotating handles 18 and the second rotating handles 17, first rotating handles 18 and the second rotating handles 17 are positioned at the diverse location on handle 11, all can rotary handle 11 to adjust the angle of instrument of the present invention, such operating personnel in use, can be adjusted by the first rotating handles 18 of diverse location and the angle of the second rotating handles 17 to instrument of the present invention, operate more flexible.
Preferably, one end that stay cord 13 is connected with pressing plate 15 is connected with contiguous block 19, this contiguous block 19 is connected with pressing plate 15, when pulling pressing plate 15 by stay cord 13 like this, increase the lifting surface area of pressing plate 15, avoiding stay cord 13 pulls pressing plate 15 process center platen 15 to shake, and instrument of the present invention is used more convenient more stable.
Claims (7)
1. a nuclear power plant evaporator water pressure test temp probe dismantling device, is characterized in that, comprises temp probe sleeve and handle; The sidewall of described temp probe sleeve is provided with connecting hole; Described handle is tubular structure, is communicated with described temp probe sleeve connection by the connecting hole of described temp probe sleeve lateral wall; One end of described handle and described temp probe sleeve connection is built-in with spring, this spring is provided with limiting plate away from one end of described temp probe sleeve, this limiting plate is fixed in described handle, stretches into described temp probe sleeve when described spring freely extends from the connecting hole of described temp probe sleeve lateral wall; Stay cord is provided with in described handle, this stay cord is through described limiting plate and described spring and run through described handle, described stay cord is provided with pressing plate near one end of described temp probe sleeve, described stay cord is provided with draw ring away from one end of described temp probe sleeve, and when pulling described draw ring, described pressing plate moves and compresses described spring.
2. nuclear power plant evaporator water pressure test temp probe dismantling device according to claim 1, it is characterized in that, described handle tilts to be connected with described temp probe sleeve.
3. nuclear power plant evaporator water pressure test temp probe dismantling device according to claim 1 and 2, is characterized in that, described pressing plate is the arcuate structure can fitted with the inwall of described temp probe sleeve.
4. nuclear power plant evaporator water pressure test temp probe dismantling device according to claim 1 and 2, it is characterized in that, one end that described stay cord is connected with described pressing plate is connected with contiguous block, and described stay cord is connected with described pressing plate by this contiguous block.
5. nuclear power plant evaporator water pressure test temp probe dismantling device according to claim 1 and 2, is characterized in that, described draw ring is circular, and diameter is greater than the diameter of described handle.
6. nuclear power plant evaporator water pressure test temp probe dismantling device according to claim 1 and 2, it is characterized in that, described handle is provided with the first rotating handles away from one end of described temp probe sleeve.
7. nuclear power plant evaporator water pressure test temp probe dismantling device according to claim 6, it is characterized in that, described handle is also provided with the second rotating handles, and this second rotating handles is 1/3rd of described decreased food apart from the distance of described first rotating handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501200.XA CN105033931B (en) | 2015-08-14 | 2015-08-14 | Nuclear power plant evaporator water pressure test temperature probe dismantling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501200.XA CN105033931B (en) | 2015-08-14 | 2015-08-14 | Nuclear power plant evaporator water pressure test temperature probe dismantling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105033931A true CN105033931A (en) | 2015-11-11 |
| CN105033931B CN105033931B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510501200.XA Active CN105033931B (en) | 2015-08-14 | 2015-08-14 | Nuclear power plant evaporator water pressure test temperature probe dismantling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468598A (en) * | 2015-08-20 | 2017-03-01 | 宝山钢铁股份有限公司 | A kind of steel-making loads and unloads retracting device with temperature-measuring gun thermocouple probe |
| CN107243865A (en) * | 2017-05-31 | 2017-10-13 | 四川行之智汇知识产权运营有限公司 | A kind of evaporator temperature probe dismantling device of low irradiation risk |
| CN108818414A (en) * | 2018-06-15 | 2018-11-16 | 中国电建集团山东电力建设第工程有限公司 | A kind of thermal power station's high temperature heater (HTH) manhole door dismantling device |
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| CN204064253U (en) * | 2014-06-23 | 2014-12-31 | 南京南瑞集团公司 | A kind of optical fiber type crack gauge |
| CN204255514U (en) * | 2014-11-27 | 2015-04-08 | 中国石油天然气股份有限公司 | A kind of pipeline temperature measuring equipment |
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| GB1357155A (en) * | 1970-10-30 | 1974-06-19 | Itt | Tool for extracting an electrical contact retainer clip |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468598A (en) * | 2015-08-20 | 2017-03-01 | 宝山钢铁股份有限公司 | A kind of steel-making loads and unloads retracting device with temperature-measuring gun thermocouple probe |
| CN106468598B (en) * | 2015-08-20 | 2019-02-05 | 宝山钢铁股份有限公司 | A kind of steel-making temperature-measuring gun thermocouple probe handling recyclable device |
| CN107243865A (en) * | 2017-05-31 | 2017-10-13 | 四川行之智汇知识产权运营有限公司 | A kind of evaporator temperature probe dismantling device of low irradiation risk |
| CN108818414A (en) * | 2018-06-15 | 2018-11-16 | 中国电建集团山东电力建设第工程有限公司 | A kind of thermal power station's high temperature heater (HTH) manhole door dismantling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105033931B (en) | 2016-08-24 |
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