CN2744444Y - Liquid steel level detector of continuous casting crystallizer - Google Patents
Liquid steel level detector of continuous casting crystallizer Download PDFInfo
- Publication number
- CN2744444Y CN2744444Y CN 200520109030 CN200520109030U CN2744444Y CN 2744444 Y CN2744444 Y CN 2744444Y CN 200520109030 CN200520109030 CN 200520109030 CN 200520109030 U CN200520109030 U CN 200520109030U CN 2744444 Y CN2744444 Y CN 2744444Y
- Authority
- CN
- China
- Prior art keywords
- sleeve
- scintillator
- photomultiplier
- level detector
- stainless steel
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Radiation (AREA)
Abstract
The utility model relates to a liquid steel level detector of a continuous casting crystallizer, belonging to the field of instruments. The improvement of the utility model is that the outer surface of a scintillator (1) and an electron-multiplier tube (2) which are interconnected with each other is coated with a two-end opened permalloy socket (7) which connects with a lateral weld (10), a cup-shaped felt sheath (11) is arranged among the outer surface of the permalloy socket (7), the inner surface of a stainless steel socket (6) and the parts of the scintillator receiving rays, a power board (4) and an amplification main board (5) are encapsulated by a copper foil cylinder (9), and sealing materials is provided among the copper foil cylinder (9) and the power board (4) and the amplification main board (5). Because of the improvements, the utility model has the advantages of long working life and high ability of shock resistance, heat insulation, cooling, anti electromagnetic interference and waterproof, and therefore the utility model can work effectively and reliably for a long time.
Description
One, technical field:
The present invention relates to a kind of continuous cast mold molten steel liquid level detector that is used for, belong to instrument field.
Two, background technology:
Continuous cast mold molten steel liquid level detector is one of important device that realizes the full-automatic continuous casting of molten steel, and the stability of its duty, the order of accuarcy of result of detection have a very significant effects smoothly for continuous casting process.Described molten steel liquid level detector operation environment is very abominable, because this detector must be installed near the crystallizer, therefore it has to bear high temperature, the effect of vibrations, the erosion of water and steam and the interference of various electromagnetic signals, the result makes the reflection actual conditions that the result of detection of molten steel liquid level can not be correct can not correctly instruct carrying out smoothly of continuous casting process.Under this condition, the life-span of detector can not be satisfactory in addition.
Existing its felt sheath of continuous cast mold molten steel liquid level detector has only encased the periphery of scintillator, and photomultiplier around be provided with felt sheath protection, leave the space between the inwall of it and scintillator and stainless sleeve.Bigger vibrations always take place during continuous casting, thereby may bump between the inwall of photomultiplier and stainless steel sleeve; Owing to leave this space, the heat that molten steel comes out during continuous casting can pass to scintillator and photomultiplier place almost unobstructedly.Be by contact pin between photomultiplier and the divider, socket links to each other, and when shaking at work, contacting between contact pin and socket can produce loosening, thereby causes the two loose contact; From the slit between felt sheath and stainless steel sleeve inwall and the water and steam of invading of the slit between sleeve and the plug can corrode described contact pin and make it corrosion, thereby further cause contact pin, the loose contact between socket; Though be wrapped with one deck permalloy paper tinsel around scintillator and photomultiplier, this safeguard structure just encases said elements with a permalloy paper tinsel simply, the edge of this paper tinsel not weldering melts one and leaves the slit, thereby influences Magnetic Shielding Effectiveness; Power panel and amplify mainboard without any protection, the components and parts above it expose, thereby the water and steam that very easy quilt is invaded corrodes, and former cooling cover entery and delivery port easily comes off, and makes the cooling water cutout.
Original continuous cast mold molten steel liquid level detector so can not make the work of detector long-term stability under the influence of vibrations, high temperature, electromagnetic interference and corrosion, influences the continuous casting line ordinary production owing to structurally above-mentioned shortcoming is arranged.
At the problems referred to above, prior art provides multiple solution.In " Research on domestic detector for CC molten steel level " (be stated from " Baogang's science and technology " the 27th and rolled up for the 4th December calendar year 2001 phase) literary composition, propose to make a kind of detector of water-cooling type as people such as peaks to solve the problem of temperatures involved, for shockproof, on BGO crystal and photomultiplier, added the felt sheath: in addition, wrapped the thick permalloy skin of 0.5mm around the photomultiplier to play the effect of electromagnetic shielding.But these two kinds of safeguard procedures also far can not solve existing problem fully.
1, it is partly preceding that described protection felt cover only encases the BOG crystal, and do not encase the photomultiplier transit tube portion, thereby this device can not get protection;
2, the seam that is wrapped in the permalloy around the photomultiplier is not welding, because of rather than totally enclosed.Owing to leave the slit, so do not realize electromagnetic shielding completely.
Problems such as the solar heat protection of 3, mentioning in above-mentioned, water cooling, steam-preventing erosion are not solved as yet.
Three, summary of the invention:
The technical problem that the present invention solves is: a kind of long working life, antidetonation, solar heat protection, good water cooling effect are provided, prevent that effectively the erosion of water and steam and anti-electromagnetic interference are strong, realize the novel continuous cast mold level sensor of full-automatic continuous casting.
The invention technical scheme: the outer surface at interconnective scintillator and photomultiplier is surrounded by permalloy sleeve that fillet in parallel shear is connected, both ends open, receives between the ray position at the inner surface of the outer surface of this permalloy sleeve and stainless steel sleeve and scintillator and is provided with cup-shaped felt sheath; Power panel and amplification mainboard are sealed by the Copper Foil tube, and irritating between Copper Foil tube and power panel and the amplification mainboard has encapsulant.
The inner surface of above-mentioned cup-shaped blanket sheath contacts with the intimate of the permalloy sleeve that encases scintillator, photomultiplier, the outer surface of this blanket sheath closely contacts with the inner surface of described stainless steel sleeve, and the bottom of blanket sheath receives the ray position with scintillator and closely contacts.
The interface of divider and photomultiplier is provided with damping spring.
All there is resinous coat the other end of described photomultiplier and divider interface, stainless steel sleeve and sleeve plug junction.
The stainless steel sleeve can adopt double-decker, is set with the water-cooled sleeve on the stainless steel sleeve, and the water-cooled sleeve is provided with the entery and delivery port stainless joint that is threaded.
The present invention has the following advantages:
1, owing to is provided with the cup-shaped felt sheath at a band end; the felt sheath that this shape is set can absorb the vibration energy of the overwhelming majority; thereby the influence that protection scintillator and photomultiplier are not shaken can also reduce the adverse effect of outside heat to these two kinds of devices simultaneously.
2, in photomultiplier and divider and the junction between stainless steel sleeve and plug, scribble resinous coat, this resinous coat both can prevent between contact pin on the photomultiplier and the socket on the divider because of the loosening loose contact that causes, and can prevent from again that gap between sleeve and plug and the water and steam of invading through other slit from producing contact pin to corrode.
3, the permalloy paper tinsel that will wrap up scintillator and photomultiplier changes the permalloy tube with the molten one of seam weldering into, because this Welding Structure makes the sidewall of permalloy tube not have the slit, thereby has eliminated the electromagnetic interference of surrounding environment to scintillator and photomultiplier.
4, with Copper Foil power panel and amplification mainboard are encased, and the filling Embedding Material, thereby prevent that components and parts exposed on these two circuit boards from being corroded by water and steam.
5, the present invention is provided with threaded stainless joint at the import and export place of water jacket, can increase cooling water inflow and hydraulic pressure, improves cooling effect.
Because utility model has been taked above-mentioned corrective measure, the molten steel liquid level detector is compared with original this class detector in the continuous cast mold of the present utility model, its damping, heat insulation, water cooling, anti-corrosion and anti-electromagnetic interference aspect all are greatly improved, thereby molten steel liquid level detector operation stability of the present utility model, life-span, reliability and detection accuracy all are significantly improved, thereby this detector can long-term stable operation and can measure molten steel liquid level in the crystallizer exactly, thereby helps realizing full automatic continuous casting.
Four, description of drawings:
Fig. 1 is a profile of the present utility model;
Fig. 2 is the utility model stainless steel water-cooled sleeve double-decker schematic diagram;
Five, the specific embodiment:
As shown in Figure 1, utility model at first is provided with the cup-shaped felt sheath 11 at a band end, and this felt sheath 11 tightly encases the one side at the reception ray position of the side of scintillator 1 and photomultiplier 2 and scintillator 1; Be surrounded by at the outer surface of interconnective scintillator 1 and photomultiplier 2 that fillet in parallel shear is 10 that be connected, the permalloy sleeve 7 of both ends open, between the inner surface of the outer surface of this permalloy sleeve 7 and described stainless steel sleeve 6, be provided with the felt sheath 11 of cup-shaped, the inside and outside surface of this felt sheath 11 closely contacts with the outer surface of the permalloy sleeve 7 that encases scintillator 1, photomultiplier 2 and the inner surface of described stainless steel sleeve 7 respectively, and its bottom closely contacts with the position that scintillator 1 receives ray.Interface at divider 3 and photomultiplier 2 is provided with damping spring 12; Power panel 4 and amplification mainboard 5 are sealed by Copper Foil tube 9 respectively, and its inside is full of Embedding Material; In photomultiplier 2 and divider 3 and the junction between stainless steel sleeve 6 and plug 8, scribble resinous coat, this resinous coat both can prevent between contact pin on the photomultiplier 2 and the socket on the divider 3 because of the loosening loose contact that causes, can prevent that again gap between sleeve 6 and plug 8 and the water and steam of invading through other slit from producing erosion to contact pin, described resin does not have strict the qualification, can use as long as can prevent any material that water and steam is invaded.Change the permalloy paper tinsel of parcel scintillator 1 and photomultiplier 2 into permalloy tube 7 with the molten one of seam 10 welderings.Because this Welding Structure makes the sidewall of permalloy tube 7 not have the slit, thereby has eliminated the electromagnetic interference of surrounding environment to scintillator 1 and photomultiplier 2.With Copper Foil 9 power panel 4 and amplification mainboard 5 are encased, and the filling Embedding Material, thereby prevent that components and parts exposed on these two circuit boards from being corroded by water and steam.
The utility model also can be set with water-cooled sleeve 15 on stainless steel sleeve 6, water-cooled sleeve 15 is provided with the entery and delivery port stainless joint 13,14 that is threaded, can increase cooling water inflow and hydraulic pressure, improve cooling effect, to adapt to normally operation under the hot environment.
Claims (5)
1, continuous cast mold molten steel liquid level detector, comprise scintillator (1), photomultiplier (2), divider (3), power panel (4), amplify mainboard (5), stainless steel sleeve (6), sleeve plug (8), it is characterized in that: the outer surface at interconnective scintillator (1) and photomultiplier (2) is surrounded by fillet in parallel shear (10) permalloy sleeve that be connected, both ends open (7), receives between the ray position at the inner surface of the outer surface of this permalloy sleeve (7) and stainless steel sleeve (6) and scintillator and is provided with cup-shaped felt sheath (11); Power panel (4) and amplification mainboard (5) are sealed by Copper Foil tube (9), and irritating between Copper Foil tube (9) and power panel (4) and the amplification mainboard (5) has encapsulant.
2, continuous cast mold molten steel liquid level detector according to claim 1, it is characterized in that: the inner surface of above-mentioned cup-shaped blanket sheath (11) contacts with the intimate of the permalloy sleeve (7) that encases scintillator (1), photomultiplier (2), the outer surface of this blanket sheath (11) closely contacts with the inner surface of described stainless steel sleeve (6), and the bottom of blanket sheath (11) receives the ray position with scintillator and closely contacts.
3, continuous cast mold molten steel liquid level detector according to claim 1 and 2 is characterized in that: the interface of divider (3) and photomultiplier (1) is provided with damping spring (12).
4, continuous cast mold molten steel liquid level detector according to claim 3 is characterized in that: all there is resinous coat the other end and sleeve plug (8) junction of described photomultiplier (2) and divider (3) interface, stainless steel sleeve (6).
5, continuous cast mold molten steel liquid level detector according to claim 4, it is characterized in that: the stainless steel sleeve can adopt double-decker, be set with water-cooled sleeve (15) on the stainless steel sleeve 6, water-cooled sleeve (15) is provided with entery and delivery port stainless joint (13), (14) that are threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109030 CN2744444Y (en) | 2005-06-10 | 2005-06-10 | Liquid steel level detector of continuous casting crystallizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520109030 CN2744444Y (en) | 2005-06-10 | 2005-06-10 | Liquid steel level detector of continuous casting crystallizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744444Y true CN2744444Y (en) | 2005-12-07 |
Family
ID=35579231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520109030 Expired - Fee Related CN2744444Y (en) | 2005-06-10 | 2005-06-10 | Liquid steel level detector of continuous casting crystallizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744444Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319214A (en) * | 2014-09-30 | 2015-01-28 | 北京空间机电研究所 | Packaging method of anti-vibration type photoelectric detector |
| CN105277250A (en) * | 2015-10-27 | 2016-01-27 | 武汉钢铁(集团)公司 | External protection structure of embedded molten steel liquid level sensor |
| CN105353403A (en) * | 2015-11-26 | 2016-02-24 | 天华化工机械及自动化研究设计院有限公司 | Fixing device for scintillator and multiplier tube of isotope gauge |
| CN105547409A (en) * | 2015-12-30 | 2016-05-04 | 黑龙江省科学院技术物理研究所 | Passive nuclear material level measurement device and method |
-
2005
- 2005-06-10 CN CN 200520109030 patent/CN2744444Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319214A (en) * | 2014-09-30 | 2015-01-28 | 北京空间机电研究所 | Packaging method of anti-vibration type photoelectric detector |
| CN104319214B (en) * | 2014-09-30 | 2017-04-26 | 北京空间机电研究所 | Packaging method of anti-vibration type photoelectric detector |
| CN105277250A (en) * | 2015-10-27 | 2016-01-27 | 武汉钢铁(集团)公司 | External protection structure of embedded molten steel liquid level sensor |
| CN105277250B (en) * | 2015-10-27 | 2018-03-27 | 武汉钢铁有限公司 | The outer protection structure of built-in steel water level sensor |
| CN105353403A (en) * | 2015-11-26 | 2016-02-24 | 天华化工机械及自动化研究设计院有限公司 | Fixing device for scintillator and multiplier tube of isotope gauge |
| CN105547409A (en) * | 2015-12-30 | 2016-05-04 | 黑龙江省科学院技术物理研究所 | Passive nuclear material level measurement device and method |
| CN105547409B (en) * | 2015-12-30 | 2018-10-09 | 黑龙江省科学院技术物理研究所 | Passive core article position measuring device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2744444Y (en) | Liquid steel level detector of continuous casting crystallizer | |
| CN101720181B (en) | Electronic equipment with high sealing performance | |
| CN101376982B (en) | Probe for monitoring sacrificial anode current output and manufacturing method thereof | |
| CN100470218C (en) | Contact type temperature sensor for high and medium voltage switch cabinet | |
| CN205037984U (en) | Line ear type NTC temperature sensor | |
| CN201280595Y (en) | Sacrificial anode generating current monitoring probe | |
| CN207398252U (en) | Battery structure | |
| CN201741818U (en) | Seabed power cable onshore section grounding device | |
| CN115077734A (en) | Thermocouple mounting structure | |
| CN213631959U (en) | Conveniently-installed magnetostrictive displacement sensor with push-pull rod | |
| CN214843694U (en) | Anti-interference sensor | |
| JPS59207718A (en) | Electric interference filter | |
| CN210321594U (en) | Anti-vibration compact type magnetostrictive displacement sensor | |
| CN207752793U (en) | A kind of novel data storage | |
| CN106659106A (en) | Novel cable antimagnetic alarm device | |
| CN213812434U (en) | Wireless remote water meter | |
| CN209374145U (en) | A kind of photoelectric compound cable with temperature detection | |
| CN212320775U (en) | Stinger stress-strain monitoring system suitable for deep sea environment | |
| CN208568820U (en) | A kind of motor-car velocity sensor | |
| CN202938882U (en) | Throw-in type liquid level transmitter | |
| CN205881625U (en) | Oil -immersed transformer with temperature is surveyed and damping function | |
| CN207751533U (en) | A kind of insulation construction of electromagnetism water meter | |
| CN220304624U (en) | Capacitive pipeline liquid level sensor | |
| CN215677170U (en) | Anti-interference electromagnetic flowmeter | |
| CN208112447U (en) | A kind of motor water proof type control circuit board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |