CN112720354A - Device and method for dismounting and mounting nuclear power station water pump shaft bush thermometer - Google Patents
Device and method for dismounting and mounting nuclear power station water pump shaft bush thermometer Download PDFInfo
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- CN112720354A CN112720354A CN202011625082.0A CN202011625082A CN112720354A CN 112720354 A CN112720354 A CN 112720354A CN 202011625082 A CN202011625082 A CN 202011625082A CN 112720354 A CN112720354 A CN 112720354A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000000523 sample Substances 0.000 claims description 38
- 238000009434 installation Methods 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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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
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of maintenance engineering of rotating equipment of a nuclear power station, and particularly relates to a dismounting device and a dismounting method for a water pump shaft bush thermometer of the nuclear power station, wherein the dismounting device comprises: a T-shaped handle and a disassembling and assembling rod; the T-shaped handle is fixedly connected with the dismounting rod in a magnetic attraction way; the dismouting pole includes: the device comprises a hexagonal connector, a U-shaped groove and a U-shaped plug; the disassembling and assembling rod is of a hollow cylindrical structure, and a rod U-shaped groove is formed in the outer surface of the disassembling and assembling rod; the top of dismouting pole is provided with the hexagonal and connects, it has U type plug to open the bottom of dismouting pole. The device and the dismounting method thereof effectively shorten the working time, improve the maintenance efficiency and reduce the irradiation time of the nuclear power station staff.
Description
Technical Field
The invention belongs to the technical field of maintenance engineering of rotating equipment of a nuclear power station, and particularly relates to a device and a method for dismounting a water pump shaft bush thermometer of the nuclear power station.
Background
The bearing bushes of various types of pumps and motors of a certain nuclear power station are provided with sensors for measuring temperature, and the pumps are protected to jump when the temperature exceeds a set limit value, so that the pump body is prevented from being damaged due to overheating, and therefore, a bearing bush thermometer plays an important role in monitoring the running state of the pumps. In pump and motor's disintegration maintenance, need carry out bearing bush thermometer probe demolish and installation work, need not only carry out correct dismouting in order to ensure thermometer probe and extend the integrality of cable to it, but also need protect bearing bush ebonite faying face, avoid because of threaded connection's too big dark gold face damage that leads to of moment.
The pump shaft bush thermometer is fixed through the screw locking head, and the following problems often appear in the actual dismounting process:
1. when the joint of the thermometer extension line and the locking head is disassembled and assembled, the protective layer is damaged, so that lubricating oil leaks outwards along the damaged part during the operation of the pump;
2. the locking head and the bearing bush are in threaded connection, and fastening torque cannot be measured during installation. The moment is too large, so that the combined surface of the black metal is protruded and deformed, the damaged bearing bush black metal needs to be polished and repaired again, and the moment is too small, so that a thermometer is not firmly fixed, a gap exists between a temperature probe and the bearing bush, the accuracy of temperature measurement is influenced, and the temperature protection of the bearing bush is disabled;
3. the thermometer is difficult to mount and fix and is difficult to dismount, so that the overhaul time can be prolonged, and the collective radiation dose of maintenance personnel can be increased for overhaul of a primary circuit water pump of a nuclear power station.
Therefore, the nuclear power station water pump bearing bush thermometer dismounting device and the dismounting method thereof need to be designed and developed aiming at the technical problems so as to overcome the defects of the prior art, improve the maintenance quality and reduce the workload and the radiation dose of maintenance personnel.
Disclosure of Invention
The invention aims to design a device and a method for dismounting a water pump bearing bush thermometer of a nuclear power station, which are used for effectively solving the technical problems that a protective layer at the joint of a thermometer extension line and a locking head is easy to damage and difficult to dismount in the dismounting process of the existing water pump bearing bush thermometer, and the risk of exceeding the dosage exists due to overlong dismounting time of an operator.
The technical scheme of the invention is as follows:
a nuclear power station water pump shaft tile thermometer dismouting device includes: a T-shaped handle and a disassembling and assembling rod; the T-shaped handle is fixedly connected with the dismounting rod in a magnetic attraction way; the dismouting pole includes: the device comprises a hexagonal connector, a U-shaped groove and a U-shaped plug; the disassembling and assembling rod is of a hollow cylindrical structure, and a rod U-shaped groove is formed in the outer surface of the disassembling and assembling rod; the top of dismouting pole is provided with the hexagonal and connects, it has U type plug to open the bottom of dismouting pole.
Hexagonal interface A has been seted up to the upper end surface of T type handle, and hexagonal interface B has been seted up to the lower extreme surface of T type handle, hexagonal interface A and the coaxial setting of hexagonal interface B.
The hexagonal joint is coaxially arranged with the hexagonal joint A and the hexagonal joint B, and is made of a magnetic material; the hexagonal connector A and the hexagonal connector B are both internally provided with magnetic adsorption materials.
The hexagonal connector B of the T-shaped handle and the hexagonal connector of the dismounting rod are fixed in a dismounting and mounting mode through magnetic adsorption.
The U-shaped plug is inserted into a straight groove of the fixed locking head of the pump shaft bush thermometer probe, and the size of the U-shaped plug is matched with the size of the straight groove on the fixed locking head of the pump shaft bush thermometer probe.
And an extension line of a pump shaft bush thermometer is placed in the U-shaped groove.
The method for disassembling and assembling the device for the water pump shaft bushing temperature meter of the nuclear power station comprises the following steps:
the method comprises the following steps: disassembling a bearing bush thermometer probe:
step 1.1: selecting a U-shaped plug with a corresponding size according to the size of the fixing locking head of the pump shaft bush thermometer probe, inserting the U-shaped plug into a linear groove of the fixing locking head of the pump shaft bush thermometer probe, and placing a thermometer extension cable in the U-shaped groove;
step 1.2: the T-shaped handle is used, the pump shaft bush thermometer probe fixing locking head is withdrawn in an anticlockwise rotating mode, the thermometer extension cable is arranged in the U-shaped groove 4 and in the middle position of the pump shaft bush thermometer probe fixing locking head in the operation process, and when the T-shaped handle is withdrawn in a rotating mode, the pump shaft bush thermometer probe fixing locking head and the U-shaped groove are not in contact with the pump shaft bush thermometer extension cable, so that the cable is prevented from being damaged; for the thermometer which has larger mounting torque and is not easy to disassemble, an inner hexagonal wrench with a corresponding size is connected at the magnetic hexagonal interface A;
step two: thermometer probe for mounting bearing bush
Step 2.1: selecting a U-shaped plug with a corresponding size according to a fixed locking head of a pump shaft bush thermometer probe, clockwise rotating the locking head by hand until the locking head cannot be fastened manually, inserting the U-shaped plug into a straight clamping groove on the locking head, and connecting and fixing the U-shaped plug with a magnetic hexagonal interface A of a T-shaped handle by using a torque wrench;
step 2.2: setting a torque value corresponding to a torque wrench according to the size of a locking head thread, placing a thermometer extension cable in a U-shaped groove, screwing the locking head clockwise by using a handle of the torque wrench, wherein the thermometer extension cable is positioned in the U-shaped groove and the middle position of the thermometer fixing locking head in the operation process, and the thermometer locking head and the U-shaped groove are not contacted with the extension cable when the thermometer locking head and the U-shaped groove are rotated and fastened;
step three: when the torque of the torque wrench reaches an action torque value and triggers a warning signal, the torque reaches the use requirement, and the pump shaft bush thermometer probe fixes the locking head to be installed in place; after the installation, the tool is directly taken out along the thermometer mounting hole, so that the damage to the extension line of the bearing bush thermometer is avoided.
The invention has the technical effects that:
(1) the torque can not be fixed in the installation and the dismantlement of current bearing bush thermometer, can only be according to experience, rely on the manual work of manpower to confirm that the torque is roughly equivalent, and different staff's torque perception scope differs great, easily causes bearing bush wujin faying face damage or thermometer fastening not in place. The device adopts a T-shaped structure, a hexagonal interface is additionally arranged on a T-shaped handle and is matched with a standard torque wrench interface, when the torque output is required, a torque wrench applies force to a thermometer dismounting tool, so that qualified torque of the thermometer during mounting or dismounting can be ensured, and manual dismounting and mounting are facilitated;
(2) the device adopts a U-shaped groove structure to avoid the damage of the thermometer lead,
when the conventional thermometer dismounting tool is used, the lead of the thermometer can be rubbed, and the lead can be seriously damaged after the thermometer element is dismounted and mounted for many times. The thermometer dismounting connecting rod used by the device adopts a U-shaped groove structure, when the thermometer dismounting connecting rod is used, the thermometer lead is placed along the U-shaped groove, and when the tool rotates in the thermometer mounting hole, the thermometer lead cannot be wound and rubbed in the middle of the U-shaped groove, so that the lead is prevented from being damaged in the dismounting process, the cable protection effect is realized, and the damage is avoided;
(3) this assembly and disassembly tools adopts split type design, can change the plug at any time according to actual need (be not limited to U type plug), can expand to apply to the locking device of other types and size.
Because the sizes of the bearing bush thermometer probes and the locking heads of different sizes and types are different, the sizes of the bearing bush thermometers of the power station water pump are mainly two types, namely 5mm and 8mm, and the corresponding locking heads are M12X 1.8 and M8X 1.0. The U-shaped plug is a convex part extending from the U-shaped groove, the radial two ends of the thermometer locking head are respectively provided with a notch, the U-shaped plug is placed in the corresponding position of the notch of the thermometer locking head to be mounted or dismounted, the U-shaped plug and the notch are mutually matched, the thermometer locking head can be driven by the device to rotate to carry out dismounting or mounting operation, but the diameters of the thermometer locking head and the U-shaped groove are required to be approximately equal, so that the U-shaped plug is just matched with the thermometer locking head; the magnetic inner hexagonal connector is also used between the handle and the U-shaped plug of the pump shaft bush thermometer dismounting device for the nuclear power station, and the U-shaped plugs with different sizes can be selected according to the actual requirements of field work, so that the tool size is ensured to meet the field use requirements to the maximum extent, the working quality is improved, and the mounting and dismounting device for the pump shaft bush thermometer for the nuclear power station is provided with the U-shaped plugs with different sizes
(4) The dismounting device and the dismounting method for the nuclear power station water pump shaft bush thermometer effectively shorten the working time, improve the overhauling efficiency and reduce the irradiation time of nuclear power station workers.
(5) The device is small in size and convenient to carry to a working site, and the space required by storage and accommodation is reduced by a split type connection mode;
(6) the device can be applied to the disassembly and assembly of the water pump thermometer of the nuclear power station, and can be applied to the disassembly and assembly of other instrument sensors in similar installation modes in an expanded way.
Drawings
FIG. 1 is a schematic overall structure diagram of a nuclear power station water pump shaft bush thermometer dismounting device designed by the present invention;
FIG. 2 is a front view of a U-shaped groove structure according to the present invention;
FIG. 3 is a side view of the U-shaped groove structure of the present invention;
wherein: 1-T-shaped handle, 2-hexagonal connector A and 3-hexagonal connector; 4, U-shaped grooves; 5, a U-shaped plug, 6-pump shaft bush thermometer extension line, 7-pump shaft bush thermometer probe fixing locking head, 8-bearing bush thermometer, 9-dismounting rod and 10-hexagonal interface B
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments,
a nuclear power station water pump shaft tile thermometer dismouting device includes: a T-shaped handle 1 and a dismounting rod 9; the T-shaped handle 1 is fixedly connected with the dismounting rod 9 through magnetic attraction; the disassembling and assembling pole 9 includes: the device comprises a hexagonal connector 3, a U-shaped groove 4 and a U-shaped plug 5; the disassembling and assembling rod 9 is of a hollow cylindrical structure, and a U-shaped groove 4 is formed in the outer surface of the disassembling and assembling rod 9; the top of dismouting pole 9 is provided with hexagonal joint 3, open the bottom of dismouting pole 9 has U type plug 5.
The upper end surface of the T-shaped handle 1 is provided with a hexagonal connector A2, the lower end surface of the T-shaped handle 1 is provided with a hexagonal connector B10, and the hexagonal connector A2 and the hexagonal connector B10 are coaxially arranged.
The hexagonal joint 3 is coaxially arranged with the hexagonal joint A2 and the hexagonal joint B10, and the hexagonal joint 3 is made of magnetic materials; the hexagonal connector A2 and the hexagonal connector B10 are both internally provided with magnetic adsorption materials.
The hexagonal connector B10 of the T-shaped handle 1 and the hexagonal connector 3 of the dismounting rod 9 are fixed in a dismounting way through magnetic adsorption.
The U-shaped plug 5 is inserted into a straight groove of the fixed locking head of the pump shaft bush thermometer probe, and the size of the U-shaped plug 5 is matched with that of the straight groove on the fixed locking head of the pump shaft bush thermometer probe.
And an extension line of a pump shaft bush thermometer is placed in the U-shaped groove 4.
The method for disassembling and assembling the device for the water pump shaft bushing temperature meter of the nuclear power station comprises the following steps:
the method comprises the following steps: disassembling a bearing bush thermometer probe:
step 1.1: selecting a U-shaped plug with a corresponding size according to the size of the fixing locking head of the pump shaft bush thermometer probe, inserting the U-shaped plug into a linear groove of the fixing locking head of the pump shaft bush thermometer probe, and placing a thermometer extension cable in the U-shaped groove;
step 1.2: the T-shaped handle is used, the pump shaft bush thermometer probe fixing locking head is withdrawn in a counterclockwise rotating mode, the thermometer extension cable is arranged in the U-shaped groove 4 and in the middle of the pump shaft bush thermometer probe fixing locking head in the operation process, and when the T-shaped handle is withdrawn in a rotating mode, the pump shaft bush thermometer probe fixing locking head and the U-shaped groove are detached and are not in contact with the pump shaft bush thermometer extension cable, so that the cable is prevented from being damaged; for the thermometer which has larger mounting torque and is not easy to disassemble, an inner hexagonal wrench with a corresponding size is connected at the magnetic hexagonal interface A;
step two: thermometer probe for mounting bearing bush
Step 2.1: selecting a U-shaped plug with a corresponding size according to a fixed locking head of a pump shaft bush thermometer probe, clockwise rotating the locking head by hand until the locking head cannot be fastened manually, inserting the U-shaped plug into a straight clamping groove on the locking head, and connecting and fixing the U-shaped plug with a magnetic hexagonal interface A of a T-shaped handle by using a torque wrench;
step 2.2: setting a torque value corresponding to a torque wrench according to the size of a locking head thread, placing a thermometer extension cable in a U-shaped groove, screwing the locking head clockwise by using a handle of the torque wrench, wherein the thermometer extension cable is positioned in the U-shaped groove and the middle position of the thermometer fixing locking head in the operation process, and the thermometer locking head and the U-shaped groove are not contacted with the extension cable when the thermometer locking head and the U-shaped groove are rotated and fastened;
step three: when the torque of the torque wrench reaches an action torque value and triggers a warning signal, the torque reaches the use requirement, and the pump shaft bush thermometer probe fixes the locking head to be installed in place; after the installation, the tool is directly taken out along the thermometer mounting hole, so that the damage to the extension line of the bearing bush thermometer is avoided.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (7)
1. The utility model provides a nuclear power station water pump shaft tile thermometer dismouting device which characterized in that includes: a T-shaped handle (1) and a dismounting rod (9); the T-shaped handle (1) is fixedly connected with the dismounting rod (9) in a magnetic attraction way; the disassembling and assembling rod (9) comprises: the device comprises a hexagonal joint (3), a U-shaped groove (4) and a U-shaped plug (5); the disassembly and assembly rod (9) is of a hollow cylindrical structure, and a U-shaped groove (4) is formed in the outer surface of the disassembly and assembly rod (9); the top of dismouting pole (9) is provided with hexagonal joint (3), U type plug (5) have been opened to the bottom of dismouting pole (9).
2. The dismounting device for the nuclear power station water pump shaft bushing thermometer according to claim 1, is characterized in that: hexagonal interface A (2) have been seted up to the upper end surface of T type handle (1), and hexagonal interface B (10) have been seted up to the lower extreme surface of T type handle (1), hexagonal interface A (2) and hexagonal interface B (10) coaxial setting.
3. The dismounting device for the nuclear power station water pump shaft bushing thermometer according to claim 2, is characterized in that: the hexagonal joint (3) is coaxially arranged with the hexagonal joint A (2) and the hexagonal joint B (10), and the hexagonal joint (3) is made of magnetic materials; the hexagonal connector A (2) and the hexagonal connector B (10) are both internally provided with magnetic adsorption materials.
4. The dismounting device for the nuclear power station water pump shaft bushing thermometer according to claim 1, is characterized in that: the hexagonal connector B (10) of the T-shaped handle (1) and the hexagonal connector (3) of the dismounting rod (9) are fixed in a dismounting and mounting mode through magnetic adsorption.
5. The device for dismounting and mounting a nuclear power station water pump shaft bushing thermometer according to claim 4, characterized in that: the U-shaped plug (5) is inserted into a straight groove of the fixed locking head of the pump shaft bush thermometer probe, and the size of the U-shaped plug (5) is matched with the size of the straight groove on the fixed locking head of the pump shaft bush thermometer probe.
6. The device for dismounting and mounting a nuclear power station water pump shaft bushing thermometer according to claim 5, is characterized in that: an extension line of a pump shaft bush thermometer is placed in the U-shaped groove (4).
7. A method for dismounting and mounting a nuclear power plant water pump shaft lining thermometer dismounting and mounting device according to any one of claims 1 to 6, characterized by comprising the following steps:
the method comprises the following steps: disassembling a bearing bush thermometer probe:
step 1.1: selecting a U-shaped plug with a corresponding size according to the size of the fixing locking head of the pump shaft bush thermometer probe, inserting the U-shaped plug into a linear groove of the fixing locking head of the pump shaft bush thermometer probe, and placing a thermometer extension cable in the U-shaped groove;
step 1.2: the T-shaped handle is used, the pump shaft bush thermometer probe fixing locking head is withdrawn in an anticlockwise rotating mode, the thermometer extension cable is arranged in the U-shaped groove 4 and in the middle position of the pump shaft bush thermometer probe fixing locking head in the operation process, and when the T-shaped handle is withdrawn in a rotating mode, the pump shaft bush thermometer probe fixing locking head and the U-shaped groove are not in contact with the pump shaft bush thermometer extension cable, so that the cable is prevented from being damaged; for the thermometer which has larger mounting torque and is not easy to disassemble, an inner hexagonal wrench with a corresponding size is connected at the magnetic hexagonal interface A;
step two: thermometer probe for mounting bearing bush
Step 2.1: selecting a U-shaped plug with a corresponding size according to a fixed locking head of a pump shaft bush thermometer probe, clockwise rotating the locking head by hand until the locking head cannot be fastened manually, inserting the U-shaped plug into a straight clamping groove on the locking head, and connecting and fixing the U-shaped plug with a magnetic hexagonal interface A of a T-shaped handle by using a torque wrench;
step 2.2: setting a torque value corresponding to a torque wrench according to the size of a locking head thread, placing a thermometer extension cable in a U-shaped groove, screwing the locking head clockwise by using a handle of the torque wrench, wherein the thermometer extension cable is positioned in the U-shaped groove and the middle position of a thermometer fixing locking head 7 in the operation process, and the thermometer locking head and the U-shaped groove are not contacted with an extension cable 6 during rotation and fastening;
step three: when the torque of the torque wrench reaches an action torque value and triggers a warning signal, the torque reaches the use requirement, and the pump shaft bush thermometer probe fixes the locking head to be installed in place; after the installation, the tool is directly taken out along the thermometer mounting hole, so that the damage to the extension line of the bearing bush thermometer is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011625082.0A CN112720354A (en) | 2020-12-31 | 2020-12-31 | Device and method for dismounting and mounting nuclear power station water pump shaft bush thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011625082.0A CN112720354A (en) | 2020-12-31 | 2020-12-31 | Device and method for dismounting and mounting nuclear power station water pump shaft bush thermometer |
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| Publication Number | Publication Date |
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| CN112720354A true CN112720354A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011625082.0A Pending CN112720354A (en) | 2020-12-31 | 2020-12-31 | Device and method for dismounting and mounting nuclear power station water pump shaft bush thermometer |
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| CN (1) | CN112720354A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003026091A (en) * | 2001-07-13 | 2003-01-29 | Yanmar Co Ltd | Maintenance method of engine and structure for maintenance |
| CN201744976U (en) * | 2010-07-22 | 2011-02-16 | 桐乡中欣化纤有限公司 | Assembling and disassembling tool special for assembly pressure sensor |
| CN202219473U (en) * | 2011-08-23 | 2012-05-16 | 上海宝钢设备检修有限公司 | Special screwdriver used for dismounting temperature-measuring element in TRT bearing bush |
| CN204604238U (en) * | 2015-05-25 | 2015-09-02 | 中国长江电力股份有限公司 | A kind of turbine-generator units bearing liner temperature probe handling instrument |
| CN208584490U (en) * | 2018-07-16 | 2019-03-08 | 中国长江电力股份有限公司 | A kind of handling instrument of bearing of hydraulic generator watt thermometric lead-in wire sealing bolt |
| CN212180115U (en) * | 2020-03-12 | 2020-12-18 | 南京钢铁股份有限公司 | Mounting tool for main motor bearing bush embedded temperature measuring resistor |
| CN214446053U (en) * | 2020-12-31 | 2021-10-22 | 江苏核电有限公司 | Nuclear power station water pump shaft tile thermometer dismouting device |
-
2020
- 2020-12-31 CN CN202011625082.0A patent/CN112720354A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003026091A (en) * | 2001-07-13 | 2003-01-29 | Yanmar Co Ltd | Maintenance method of engine and structure for maintenance |
| CN201744976U (en) * | 2010-07-22 | 2011-02-16 | 桐乡中欣化纤有限公司 | Assembling and disassembling tool special for assembly pressure sensor |
| CN202219473U (en) * | 2011-08-23 | 2012-05-16 | 上海宝钢设备检修有限公司 | Special screwdriver used for dismounting temperature-measuring element in TRT bearing bush |
| CN204604238U (en) * | 2015-05-25 | 2015-09-02 | 中国长江电力股份有限公司 | A kind of turbine-generator units bearing liner temperature probe handling instrument |
| CN208584490U (en) * | 2018-07-16 | 2019-03-08 | 中国长江电力股份有限公司 | A kind of handling instrument of bearing of hydraulic generator watt thermometric lead-in wire sealing bolt |
| CN212180115U (en) * | 2020-03-12 | 2020-12-18 | 南京钢铁股份有限公司 | Mounting tool for main motor bearing bush embedded temperature measuring resistor |
| CN214446053U (en) * | 2020-12-31 | 2021-10-22 | 江苏核电有限公司 | Nuclear power station water pump shaft tile thermometer dismouting device |
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