CN110174159A - A kind of high temperature fluent metal detection system - Google Patents
A kind of high temperature fluent metal detection system Download PDFInfo
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- CN110174159A CN110174159A CN201910509529.9A CN201910509529A CN110174159A CN 110174159 A CN110174159 A CN 110174159A CN 201910509529 A CN201910509529 A CN 201910509529A CN 110174159 A CN110174159 A CN 110174159A
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 52
- 239000002184 metal Substances 0.000 title claims abstract description 52
- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 239000000523 sample Substances 0.000 claims abstract description 115
- 239000000919 ceramic Substances 0.000 claims abstract description 30
- 229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 7
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 10
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000006467 substitution reaction Methods 0.000 abstract description 2
- 239000003870 refractory metal Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 12
- 238000005259 measurement Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 229910003251 Na K Inorganic materials 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910001152 Bi alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000001883 metal evaporation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The disclosure belongs to the detection field of instrumentation technology of liquid metal, in particular to a kind of high temperature fluent metal detection system, the system includes: power supply, alarming device, thermocouple temperature display, high temperature fluent metal probe；Wherein high temperature fluent metal probe, power supply, alarming device are connected in series by conducting wire；Wherein high temperature fluent metal probe includes: transition piece, insulating part, sealing element and is used to support fixed structural member；Wherein connected between sealing element and insulating part using transition piece；Wherein insulating part uses high temperature ceramic material.Wherein the high temperature fluent metal probe of the disclosure uses ceramic tube, is both structural member and insulating part, and sealing element is using metal gasket；When other structures part, connector are using stainless steel material, maximum operation (service) temperature can reach 650 DEG C.If temperature resistant capability can be also further increased to 1000 DEG C using nickel-base alloy or refractory metal material substitution production probe and threaded connector.
Description
Technical field
The disclosure belongs to the detection field of instrumentation technology of liquid metal, in particular to a kind of applied to high temperature fluent metal
Detection system.
Background technique
In liquid metal device, temperature and liquid level etc. are and operation and safety-related important parameter.Due to liquid metal
Running temperature is higher, and especially the liquid metals such as sodium, Na-K alloy, lithium, lead bismuth alloy working medium also has chemical property active
Feature generally cannot directly be contacted with air, very high to equipment sealing requirements, therefore temperature and liquid in liquid metal equipment
Position measurement is bigger compared to the common working medium technical difficulty such as water.
The measurement of liquid metal temperature is general to be extend into inside working medium by the way of thermocouple trap using a blind pipe,
Then it places armoured thermocouple and carries out thermometric.This mode can guarantee the leakproofness of device, adherent compared in device external
Accuracy of measurement is higher, but is also required to specially reserve thermocouple trap pipe in equipment adapter tube simultaneously, the degree that improves that the device is complicated.
The measurement of liquid level of liquid metal can be divided into two class of continous way liquidometer and level probe, more multiple relative to structure
It is miscellaneous, cost is higher and the continuous liquidometer that needs specially to demarcate, be used to indicate the level probe application of certain height liquid level more
Extensively, it can be warned in the safety levels of the equipment such as fluent metal loop storage tank, graduated cylinder, expansion drum, perfusion operation stop signal,
And multiple occasions such as flow calibration are applied.After liquid metal temperature is higher than fusing point, liquid metal vapor disperse can be generated
In ullage, coagulating sedimentation is easy in the lower level gauging component surface of temperature, corrosion is generated to probe material.Separately
Outside, the adhesion between insulating part and structural member is easily caused after metal working medium deposition, forms signal wrong report, frequency of maintenance is higher.Mesh
The maximum operating temperature of the fluent metal loops such as preceding Na-K alloy, lead bismuth alloy can reach 600 DEG C, for the safety fortune for ensureing circuit
Row realizes the functions such as calibration, warning, this just needs a kind of level probe that can be worked under high temperature fluent metal steam ambient,
And have preferable leakproofness and rapid-maintenance function.
The level probe used in liquid metal generally uses polytetrafluoroethylene (PTFE) etc. as insulating materials at present, and sealing is then
Polytetrafluoroethylene (PTFE) or vacuum flange are directlyed adopt, such probe installing and dismounting amount of parts is more, and maintenance convenience is poor,
Ultimate vacuum tightness is also not ideal enough in actual use.
In liquid metal equipment, it often will appear an equipment while needing the case where carrying out temperature and level gauging.
Such as need to be equipped with liquid level of at least three level probe for different height in the liquid metal vessels such as expansion drum, graduated cylinder and indicate,
Temperature measurement of 1 to the 3 thermocouple trap of setting for working medium in tank body simultaneously.And arranging exhaust air pipe, work are generally also needed on end socket
Other adapter tubes such as matter import and export pipe, it is narrow to often result in space, is also easy to produce interference, operating difficulties mutually between each adapter tube.
In view of ordinary liquid metal probe, there are above-mentioned various deficiencies, cause conventional liquid metal detection system can not
Realize the liquid metal detection under the condition of high temperature.
Summary of the invention
(1) purpose invented
In order to overcome the deficiencies of the prior art, it is simple and convenient to operate present disclose provides a kind of structure and can be realized high temperature
The multipurpose high temperature fluent metal detection system of liquid level of liquid metal and temperature sensing.
(2) technical solution
A kind of high temperature fluent metal detection system, the system include: power supply, alarming device, thermocouple temperature display, height
Warm liquid metal probe；
Wherein high temperature fluent metal probe, power supply, alarming device are connected in series by conducting wire；
Wherein high temperature fluent metal probe includes: transition piece, insulating part, sealing element and is used to support fixed knot
Component；
Wherein connected between sealing element and insulating part using transition piece；
Wherein insulating part uses high temperature ceramic material.
Alarming device is loudspeaking attention device and/or indicator light.
Structural member uses stainless steel material.
Structural member includes: threaded male, upper compressing member, screw thread female connector, lower linking tube, probe；Insulating part includes:
Ceramic tube；
Wherein threaded male is with externally threaded pipe fitting；Screw thread female connector is with internal thread pipe fitting, and screw thread
One end of female connector pipe internal surface is equipped with a circle bulge loop；One end of lower linking tube outer surface is equipped with a circle bulge loop；
Outside lower linking tube, threaded male is connect threaded female fitting sleeve with threaded female joint screw thread, and passes through upper compressing member
Lower linking tube is compressed, upper compressing member is located in screw thread female connector；
Ceramic tube is Circular Pipe, and ceramic tube sequentially passes through threaded male, upper compressing member, screw thread female connector, lower linking tube；
Probe passes through ceramic tube.
Probe includes probe fixing end and probe adjustable side；Its middle probe fixing end is Circular Pipe, and probe is fixed
End is across ceramic tube；Probe adjustable side is long cylinder, and the beginning end of probe adjustable side is fixedly connected with probe fixing end.
Detection system further includes shielded thermocouple wire；And the shielded thermocouple wire is located in high temperature fluent metal probe
Portion.
Probe is long straight round tube, and uses plug welded seal, and internal placement shielded thermocouple wire in bottom end.
Probe fixing end is fixedly connected as welding with probe adjustable side.
Transition piece includes: upper connector, middle connector, lower connector；Upper connector, middle connector, lower connector
It is cirque structure；Sealing element includes: gasket；
The upper and lower end of probe fixing end and ceramic tube is utilized respectively connection, the connection of lower connector；
Ceramic tube is connect with upper compressing member by middle connector；
Gasket is provided between upper compressing member and lower linking tube.
(3) beneficial effect
The high temperature fluent metal detection system of the disclosure, the new type high temperature liquid metal probe of use, the wherein disclosure
High temperature fluent metal probe uses ceramic tube, is both structural member and insulating part, and sealing element is using metal gasket；?
Other structures part, connector can reach 650 DEG C using maximum operation (service) temperature when stainless steel material.If using nickel-base alloy or infusibility
Temperature resistant capability, can be also further increased to 1000 DEG C by metal material substitution production probe and threaded connector.
The probe that the high temperature fluent metal detection system of the disclosure uses is connected using fast thread, easy to maintenance quick,
If liquid metal adhesion false positive signal occurs, can be dismantled rapidly by screw thread.Blind plugging head temporary sealing can be used in maintenance process, to
It is installed again rapidly after cleaning out, reduces equipment because polluting caused by introducing air.
The probe that the high temperature fluent metal detection system of the disclosure uses can both use solid stainless steel bars
The stainless steel tube after the soldering and sealing of bottom also can be used as thermocouple trap in manufacture, and inside places armouring thermocouple wire and carries out thermometric, simultaneously
Have the function of probe and thermometric, reduces adapter tube at the top of equipment, facilitate operation.When for example, by using Ф 5 × 0.5mm straight tube, bottom
It can be used as the thermocouple trap that internal diameter is Ф 4mm after welded seal.Thermocouple wire can be adjusted arbitrarily in thermocouple trap internal height, and measurement is not
With the liquid metal temperature of position, use very convenient flexible.In this way, it can be achieved that the multi-functional of probe makes
With, i.e., simultaneously carry out level detection and liquid metal temperature measurement, increase substantially device space utilization rate.
The probe that the high temperature fluent metal detection system of the disclosure uses has high reliability, is not easy to reveal.Probe and company
There are multiple pads between fitting, can still pass through upper connector after lower pad leakproofness failure between connector and ceramic tube
Pad between ceramic tube keeps leakproofness, avoids single point failure.Gasket seal can be wanted according to working medium compatibility
It asks, selects different materials, the slips such as iron, copper, nickel to can be controlled in 1 × 10 respectively-11Pa·m3Within/s.Sealing element and insulation
No axial pressure transmits between part, and the situation for the Major disruptionL that can directly be pressurized to avoid ceramic member in average probe compaction process goes out
It is existing.
The probe structure that the high temperature fluent metal detection system of the disclosure uses is simple, and cost is relatively low, is suitble to batch micro operations；
Probe cross section product is small, in equipment can flexible arrangement, probe length can freely intercept welding as needed, in guarantee verticality
In the case of probe length can be more than 2m.
Detailed description of the invention
Fig. 1 is probe structure schematic diagram；
Fig. 2 is application schematic diagram of the probe in liquid metal vessels；
Fig. 3 is high temperature fluent metal detection system schematic diagram；
Wherein 1 upper connector；2 threaded males；Connector in 3；Compressing member on 4；5 screw thread female connectors；6 lower linking tubes；7 potteries
Porcelain tube；8 lower connectors；9 probe fixing ends；10 probe adjustable sides；11 gaskets；12 working medium inlet/outlet pipes；13 overflow ports；14 liquid
Metal bath surface；15 low level probes；Position probe in 16；17 high-order probes；18 power supplys；19 loudspeaking attention devices；20 indicator lights；21 thermoelectricity
Even temperature indicator；22 shielded thermocouple wires；23 high temperature fluent metal probes；24 liquid metal vessels；
Specific embodiment
For the technical solution for the high temperature fluent metal detection system for illustrating the disclosure being more clear, below with reference to Fig. 1,
Technical solution provided by the present disclosure is described in detail in Fig. 2 and Fig. 3 and specific embodiment:
A kind of high temperature fluent metal detection system, the system include: power supply 18, alarming device, thermocouple temperature display
21, shielded thermocouple wire 22, high temperature fluent metal probe 23；Wherein high temperature fluent metal probe 23, power supply 18, alarming device are logical
Cross conductive series connection；Wherein high temperature fluent metal probe 23 includes: transition piece, insulating part, sealing element and is used for branch
Support fixed structural member；Wherein connected between sealing element and insulating part using transition piece；Wherein insulating part uses high temperature resistant
Ceramic material.Alarming device is loudspeaking attention device 19 and/or indicator light 20.
Structural member uses stainless steel material.Structural member include: threaded male 2, upper compressing member 4, screw thread female connector 5, under
Adapter tube 6, probe；Insulating part includes: ceramic tube 7；Wherein threaded male 2 is with externally threaded pipe fitting；Threaded female connects
First 5 be band internal thread pipe fitting, and one end of 5 pipe internal surface of screw thread female connector is equipped with a circle bulge loop；6 outer surface of lower linking tube
One end is equipped with a circle bulge loop；5 sets of screw thread female connector outside lower linking tube 6, threaded male 2 is threadedly coupled with screw thread female connector 5, and
Lower linking tube 6 is compressed by upper compressing member 4, upper compressing member 4 is located in screw thread female connector 5；Threaded male 2 and screw thread female connector 5
It is threadedly coupled and the compression to metal gasket 11 is realized by upper compressing member 4 and lower linking tube 6, the fixation of lower linking tube 6 passes through welding
It is realized on vessel head；
Ceramic tube 7 be Circular Pipe, and ceramic tube 7 sequentially pass through threaded male 2, upper compressing member 4, screw thread female connector 5, under
Adapter tube 6；Probe passes through ceramic tube 7.Probe includes probe fixing end 9 and probe adjustable side 10；Its middle probe is fixed
End 9 is Circular Pipe, and probe fixing end 9 passes through ceramic tube 7；Probe adjustable side 10 is long cylinder, and probe adjustable side 10 is opened
Head end is fixedly connected with probe fixing end 9.Probe is long straight round tube, and uses plug welded seal in bottom end, and internal
Place shielded thermocouple wire 22.
Probe fixing end 9 is fixedly connected as welding with probe adjustable side 10.Transition piece include: upper connector 1, in
Connector 3, lower connector 8；Upper connector 1, middle connector 3, lower connector 8 are cirque structure, due to stainless steel structure
Can not directly be welded between part and ceramic tube 7, increase transition piece, in transition piece outside respectively with stainless steel and ceramics
Welding, plays transitional function；Sealing element includes: gasket 11；The upper and lower end of probe fixing end 9 and ceramic tube 7 is utilized respectively company
It connects, lower connector 8 connects；Ceramic tube 7 is connect with upper compressing member 4 by middle connector 3；It is set between upper compressing member 4 and lower linking tube 6
It is equipped with gasket 11.
High temperature fluent metal detector provided by the disclosure connects in the way of Fig. 3, and wherein high temperature fluent metal is visited
Needle 23 is in use, only need reserved lower half portion in the device fabrication stage, i.e. screw thread female connector 5 and lower linking tube 6 in Fig. 1,
6 lower part of lower linking tube can directly be welded with apparatus closing end, be welded after can also reserving skirt.Before top half installation with probe,
Alcohol or acetone should be dipped using gauze to probe and scrub clean is carried out to the part of all possible Fluid Contacting state metals, then
Metal gasket 11 is equipped with again to be installed.It should hunt leak in time after tightening nut, if it find that leakage should should increase and screw power
Degree.This probe is due to using all-metal sealing, and there is no crushing sealing element risks, therefore screwing dynamics can be somewhat larger.
If the high temperature fluent metal probe 23 of Fig. 2 is arranged, if using the stainless steel straight tube of 5 × 0.5mm of Ф as probe,
Then 3 probes can be employed as the thermocouple trap that internal diameter is 4mm, and diameter can very swimmingly in the armoured thermocouple below of Ф 3
Go deep into thermocouple trap bottom.It is most appropriate that thermocouple trap is set generally in low level probe 15, it can be quasi- when liquid level is higher or lower
The really temperature of measurement liquid metal, the temperature surveyed can be used for heater and keep the temperature the control signal of heat tracing.
Repair and replacement situation: probe insulating segment provided by the disclosure is 7 sections of longer ceramic tube, even if part and equipment
Metal evaporation adhesion occurs between cylinder will not cause short circuit, and signal wrong report occurs.In extreme circumstances, if probe is true
The real signal that occurs reports phenomenon by mistake, then should unscrew probe using spanner under argon gas inside or the protection of other inert gas micro-positive pressures
Top half slowly extracts probe out, then carries out temporary sealing using public blind plugging head.Then acetone or wine are dipped using gauze
Essence carries out slow wiping processing to the metal deposited at probe and ceramic tube 7, and confirmation without reinstalling again after adhesion.
Since connector and ceramic tube 7 have more than 1000 DEG C of heat-resisting ability, cools down or make by skirt
It uses heat-resisting material replacement stainless steel as structural member, and chooses the welding material that heatproof is more than 1000 DEG C, liquid can be achieved
The measurement of liquid level when reaching 1000 DEG C below metal bath surface 14.At such a temperature, the sealing structure of the disclosure is still reliable.
The there is provided probe of the disclosure is successfully answered excessively in Na-K alloy circuit, potassium storage tank, expansion drum and graduated cylinder
With, while being used as level probe and thermocouple trap, the space on end socket top is greatly saved, disassembly process is very convenient.
By taking the application of certain Na-K alloy circuit expansion tank as an example, expansion drum is set to circuit highest point, is provided with 3 in expansion drum
A probe with thermocouple trap, 3 probes are respectively 80mm (low level probe 15), 280mm (middle position probe apart from end socket distance from bottom
16), 480mm (high-order probe 17) is inserted with 3 K-type shielded thermocouple wires 22 in thermocouple trap.When circuit initially fills, using pressure
Poor method room temperature perfusion, the working medium in holding vessel is depressed into circuit, when 15 indicator light 20 of low level probe in expansion drum is lighted simultaneously
When beeping, that is, think that working medium has been filled in circuit, probe signals are to stop perfusion operation signal, the temperature in thermocouple trap
Degree display is still room temperature.Loop temperature is then slowly raised to 550 DEG C, working medium volume expansion therewith, liquid level are slow in circuit
It is increased to light at middle position probe 16 and by its indicator light 20, the thermocouple temperature display of middle position probe 16 also reaches 547 DEG C at this time
Left and right shows that Temperature of Working in expansion drum and the major loop temperature difference are smaller, and the heat preservation of system is good.When stable operation, low level is visited
As temperature controlling point, expansion drum outside wall surface winds heater strip and carries out thermal compensation thermocouple in needle 15, maintains temperature at 550 DEG C, prevents
Expansion drum heat dissipation excessively causes loop temperature uneven.The height near overflow port 13 is arranged in high-order probe 17, once due to
Maloperation or other reasons cause working medium liquid level in expansion drum to increase extremely, and high-order probe 17 will issue alarm signal, and conduct
Working medium is returned row by the open signal of overflow valve, prevents high temperature refrigerant from entering gas covering system.It is right after the test for having carried out setting
System cools down, and middle position probe 16 is switched to extinguish by illuminating state, and working medium carries out back row, low level probe 15 after being down to 100 DEG C
Signal also switchs to extinguish, and the liquid metal detection system on expansion drum completes primary complete liquid level and temperature sensing process.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the disclosure to the disclosure
Mind and range.If in this way, these modifications and variations of the disclosure are belonged to the model of disclosure claim and its equivalent technology
Within enclosing, then the disclosure is also intended to include these modifications and variations.Above-described embodiment or embodiment are only to the disclosure
For example, the disclosure can also be implemented with other ad hoc fashions or other particular form, without departing from the disclosure
Main idea or substantive characteristics.Therefore, the embodiment of description is regarded as illustrative and non-limiting in any way.This
Scope of disclosure should be illustrated that any variation equivalent with the intention and range of claim also should include by appended claims
Within the scope of this disclosure.
Claims (9)
1. a kind of high temperature fluent metal detection system, which is characterized in that the system includes: power supply (18), alarming device, thermocouple
Temperature indicator (21), high temperature fluent metal probe (23)；
Wherein the high temperature fluent metal probe (23), power supply (18), alarming device are connected in series by conducting wire；The wherein height
Warm liquid metal probe (23) includes: transition piece, insulating part, sealing element and is used to support fixed structural member；
Wherein connected between the sealing element and insulating part using transition piece；
Wherein the insulating part uses high temperature ceramic material.
2. a kind of high temperature fluent metal detection system according to claim 1, which is characterized in that the alarming device is to raise
Sound attention device (19) and/or indicator light (20).
3. a kind of high temperature fluent metal detection system according to claim 1, which is characterized in that the structural member is not using
Become rusty Steel material.
4. a kind of high temperature fluent metal detection system according to claim 1, which is characterized in that the structural member includes:
Threaded male (2), upper compressing member (4), screw thread female connector (5), lower linking tube (6), probe；The insulating part includes: pottery
Porcelain tube (7)；
Wherein the threaded male (2) is with externally threaded pipe fitting；The screw thread female connector (5) is band internal thread pipe
Part, and one end of screw thread female connector (5) pipe internal surface is equipped with a circle bulge loop；One end of lower linking tube (6) outer surface is equipped with one
Enclose bulge loop；
The screw thread female connector (5) cover lower linking tube (6) outside, threaded male (2) is threadedly coupled with screw thread female connector (5), and
Lower linking tube (6) are compressed by upper compressing member (4), the upper compressing member (4) is located in screw thread female connector (5)；
The ceramic tube (7) is Circular Pipe, and ceramic tube (7) sequentially passes through threaded male (2), upper compressing member (4), threaded female
Connector (5), lower linking tube (6)；
The probe passes through ceramic tube (7).
5. a kind of high temperature fluent metal detection system according to claim 4, which is characterized in that the probe includes
Probe fixing end (9) and probe adjustable side (10)；Wherein the probe fixing end (9) is Circular Pipe, and probe fixing end (9) is worn
Cross ceramic tube (7)；The probe adjustable side (10) is long cylinder, and the beginning end of probe adjustable side (10) and probe fixing end
(9) it is fixedly connected.
6. a kind of high temperature fluent metal detection system according to claim 4 or 5, which is characterized in that the detection system
It further include shielded thermocouple wire (22)；And the shielded thermocouple wire (22) is located at high temperature fluent metal probe (23) inside.
7. a kind of high temperature fluent metal detection system according to claim 6, which is characterized in that the probe is length
Straight round tube, and plug welded seal, and internal placement shielded thermocouple wire (22) are used in bottom end.
8. a kind of high temperature fluent metal detection system according to claim 5, which is characterized in that the probe fixing end
(9) it is fixedly connected as welding with probe adjustable side (10).
9. a kind of high temperature fluent metal detection system according to claim 4, which is characterized in that the transition piece packet
It includes: upper connector (1), middle connector (3), lower connector (8)；The upper connector (1), middle connector (3), lower connector
It (8) is cirque structure；The sealing element includes: gasket (11)；
The upper and lower end of the probe fixing end (9) and ceramic tube (7) is utilized respectively connection, lower connector (8) connects；
The ceramic tube (7) is connect with upper compressing member (4) by middle connector (3)；
Gasket (11) are provided between the upper compressing member (4) and lower linking tube (6).
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| CN201910509529.9A CN110174159A (en) | 2019-06-13 | 2019-06-13 | A kind of high temperature fluent metal detection system |
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| CN201910509529.9A CN110174159A (en) | 2019-06-13 | 2019-06-13 | A kind of high temperature fluent metal detection system |
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| CN110174159A true CN110174159A (en) | 2019-08-27 |
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| CN201910509529.9A Pending CN110174159A (en) | 2019-06-13 | 2019-06-13 | A kind of high temperature fluent metal detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640541A (en) * | 2021-08-30 | 2021-11-12 | 西安交通大学 | Electromagnetic probe for measuring local flow velocity of liquid metal and calibration device thereof |
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| JPS6049224A (en) * | 1983-08-29 | 1985-03-18 | Toshiba Corp | Detector of liquid level and temperature of conductive liquid |
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| CN113640541A (en) * | 2021-08-30 | 2021-11-12 | 西安交通大学 | Electromagnetic probe for measuring local flow velocity of liquid metal and calibration device thereof |
| CN113640541B (en) * | 2021-08-30 | 2022-05-06 | 西安交通大学 | Electromagnetic probe for measuring local flow velocity of liquid metal and calibration device thereof |
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