CN203026172U - Device for preventing connection of pump revolution speed measuring probe cable from loosing off - Google Patents
Device for preventing connection of pump revolution speed measuring probe cable from loosing off Download PDFInfo
- Publication number
- CN203026172U CN203026172U CN2012206761568U CN201220676156U CN203026172U CN 203026172 U CN203026172 U CN 203026172U CN 2012206761568 U CN2012206761568 U CN 2012206761568U CN 201220676156 U CN201220676156 U CN 201220676156U CN 203026172 U CN203026172 U CN 203026172U
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- China
- Prior art keywords
- cable
- speed measuring
- revolution speed
- measuring probe
- semi
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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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- 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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- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The utility model discloses a device for preventing connection of a pump revolution speed measuring probe cable from loosing off, which is arranged on the revolution speed measuring probe cable of a reactor main pump. The device is characterized by comprising a fixed base fixed on a main pump revolution speed measuring probe mounting pedestal, a bracket arm fixed on the fixed base, and cable clamp plates, wherein one lateral surface of each cable clamp plate is provided with a semi-cylindrical groove matched with the external diameter of the speed measuring probe cable; and the surfaces with the semi-cylindrical grooves of two cable clamp plates are oppositely close to each other, the semi-cylindrical grooves of the two close cable clamp plates are corresponding to each other and form an integral cylindrical hole, and the revolution speed measuring probe cable passes through the cylindrical hole. The device for preventing connection of the pump revolution speed measuring probe cable from loosing off, disclosed by the utility model, can effectively avoid loosing of the cable connection caused by main pump vibration and cable weight, sequentially, improves safety and reliability of operation of nuclear power plants.
Description
Technical field
The present invention relates to the nuclear power station field, be specifically related to a kind ofly prevent that main reactor pump tachometric survey probe cable from connecting the device that gets loose.
Background technology
In pressurized-water reactor nuclear power plant, rotational speed probe is set is used for monitoring main pump rotating speed, for operator and reactor protection system provide the main pump tach signal, safety and the operation that guarantees reactor played an important role.Because the main pump vibration causes the rotational speed probe stube cable to get loose, thereby cause the main pump tach signal even to lose by correct measurement, affect the normal operation of nuclear power plant, increased the possibility of spurious shutdown.For guaranteeing the normal operation of nuclear power plant, special device should be set prevent that main pump rotational speed probe cable from getting loose.
Summary of the invention
The technical matters that will solve of the present invention is to provide and a kind ofly can guarantees nuclear power plant's run duration correct measurement main pump rotating speed, thereby guarantees the main pump rotational speed probe stube cable anti-loosing device of the normal operation of nuclear power plant.
In order to solve the problems of the technologies described above, technical scheme of the present invention is, a kind of device that prevents that the connection of revolution speed measuring sonde cable from getting loose, it is arranged on the tachometric survey probe cable of main reactor pump, comprises the holder that is fixed on described main pump tachometric survey probe mounting seat, is fixed on trailing arm, cable clamp on described holder;
Described cable clamp one side surface is provided with the semi-cylindrical groove with described holes probe outside diameter of cable coupling; The face that has semi-cylindrical groove of two described cable clamps is close to relatively, and these two semi-cylindrical grooves that are close to cable clamp correspond to each other and form a complete cylindrical hole, and described tachometric survey probe cable passes described cylindrical hole.
Two described cable clamps that are close to that also comprise the opposite side that is fixed on described trailing arm.
The described cable clamp that is close to of two couple of described trailing arm both sides is fixed together by four groups of bolts and described trailing arm.
The device that prevents that the connection of revolution speed measuring sonde cable from getting loose of the present invention can effectively be avoided connecting due to the cable that main pump vibrates and cable weight causes the generation that gets loose, thereby improves nuclear power plant's Operation safety core reliability.
Description of drawings
Fig. 1 is a kind of device schematic diagram that prevents that the connection of revolution speed measuring sonde cable from getting loose of the present invention;
Fig. 2 is X-direction schematic diagram in Fig. 1.
In figure: 1 is holder, and 2 is trailing arm, and 3 is cable clamp, and 4 is bolt hole, and 5 is nut, and 6 is packing ring, and 7 is stud bolt, and 8 is cable aperture.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 and embodiment, the present invention is described further.
The present invention is a kind of as shown in Figure 1 prevents that revolution speed measuring sonde cable from connecting the device that gets loose, it is arranged on the tachometric survey probe cable of main reactor pump, comprises the holder 1 that is fixed on described main pump tachometric survey probe mounting seat, is fixed on trailing arm 2, cable clamp 3 on described holder 1;
Described cable clamp 3 one side surfaces are provided with the semi-cylindrical groove with described holes probe outside diameter of cable coupling; The face that has semi-cylindrical groove of two described cable clamps 3 is close to relatively, and these two semi-cylindrical grooves that are close to cable clamp 3 correspond to each other and form complete cylindrical hole, i.e. a cable aperture;
As shown in Figure 2, two described cable clamps that are close to 3 are bolted on a side of described trailing arm 2;
The opposite side of described trailing arm 2 can also fixed two described close cable clamps 3, and can be fixed together by four groups of bolts and described trailing arm with another two described cable clamps that are close to 3 of trailing arm 2 offsides;
During use, half of the tachometric survey probe cable of main pump is embedded in the semi-cylindrical groove of a described cable clamp 3, then the semicolumn groove of another piece cable clamp 3 is aimed at described tachometric survey probe cable, and then make the tachometric survey probe cable second half embed in the semicolumn groove of another piece cable clamp 3, the most above-mentioned two cable clamps 3 by bolted on described trailing arm 2, thereby realize supporting the effect of rotational speed probe stube cable, prevent from getting loose due to the cable connection that main pump vibrates and cable weight causes.
Claims (3)
1. one kind prevents that revolution speed measuring sonde cable from connecting the device that gets loose, it is arranged on the tachometric survey probe cable of main reactor pump, it is characterized in that: comprise the holder that is fixed on described main pump tachometric survey probe mounting seat, be fixed on trailing arm, cable clamp on described holder;
Described cable clamp one side surface is provided with the semi-cylindrical groove with described holes probe outside diameter of cable coupling; The face that has semi-cylindrical groove of two described cable clamps is close to relatively, and these two semi-cylindrical grooves that are close to cable clamp correspond to each other and form a complete cylindrical hole, and described tachometric survey probe cable passes described cylindrical hole.
2. prevent that according to claimed in claim 1 revolution speed measuring sonde cable from connecting the device that gets loose, and is characterized in that: two described cable clamps that are close to that also comprise the opposite side that is fixed on described trailing arm.
3. prevent that according to claimed in claim 2 revolution speed measuring sonde cable from connecting the device get loose, is characterized in that: the described cable clamp that is close to of two couples of described trailing arm both sides is fixed together by four groups of bolts and described trailing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206761568U CN203026172U (en) | 2012-12-10 | 2012-12-10 | Device for preventing connection of pump revolution speed measuring probe cable from loosing off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206761568U CN203026172U (en) | 2012-12-10 | 2012-12-10 | Device for preventing connection of pump revolution speed measuring probe cable from loosing off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026172U true CN203026172U (en) | 2013-06-26 |
Family
ID=48650138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206761568U Expired - Lifetime CN203026172U (en) | 2012-12-10 | 2012-12-10 | Device for preventing connection of pump revolution speed measuring probe cable from loosing off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112993883A (en) * | 2021-03-15 | 2021-06-18 | 中国原子能科学研究院 | Cable clamp and ionization chamber suspension device in reactor |
-
2012
- 2012-12-10 CN CN2012206761568U patent/CN203026172U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112993883A (en) * | 2021-03-15 | 2021-06-18 | 中国原子能科学研究院 | Cable clamp and ionization chamber suspension device in reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |