CN102636279A - Resistance and voltage temperature measurement and over-temperature alarm cable and preparation method thereof - Google Patents
Resistance and voltage temperature measurement and over-temperature alarm cable and preparation method thereof Download PDFInfo
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- CN102636279A CN102636279A CN201210146720XA CN201210146720A CN102636279A CN 102636279 A CN102636279 A CN 102636279A CN 201210146720X A CN201210146720X A CN 201210146720XA CN 201210146720 A CN201210146720 A CN 201210146720A CN 102636279 A CN102636279 A CN 102636279A
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Abstract
The invention discloses a resistance and voltage temperature measurement and over-temperature alarm cable and a preparation method thereof; the cable comprises a sheath layer, a thermo-sensitive material, two core wires and a simple cap; the thermo-sensitive material is filled in the sheath layer; sealant is fully filled in the simple cap; the core wires are connected with compensation cables; the positive pole of each core wire is connected with that of each compensation cable, and the negative pole of the core wire is connected with that of the compensation cable; and the thermo-sensitive material is filled between the two parallel or twisted-pair core wires and between the core wires and the sheath layer. The preparation method comprises the following steps that (a) transition metal oxide is weighed; (b) a double-hole circular bar which is made of the thermo-sensitive material is prepared; (c) assembly is carried out; (d) drawing is carried out; (e) wire cutting is carried out; and (f) a connecting piece is manufactured. According to the invention, the thermoelectromotive force between the two poles of an output signal is adopted to correspond to the highest temperature along a line; a resistance signal between the two poles of the output signal is adopted and corresponds to the average temperature along the line; and temperature measurement and over-temperature alarm with different temperature characteristics can be realized by changing the components and the proportion of the thermo-sensitive material and selecting thermal electrodes with different models.
Description
Technical field
The present invention relates to a kind of temperature sensor, particularly a kind of resistance, the two-parameter temperature variant temperature survey of voltage and overtemperature alarm cable and preparation method thereof.
Background technology
The cable type temperature sensor is as wide area temperature survey and overtemperature alarm; Has the incomparable advantage of other temperature sensor; Being widely used at present the detection and the warning of all trades and professions temperature anomaly, is the boiler, railroad traction cabin etc. of lining like cable testing bridge, gasification furnace, storage tank, with the fire resistive material.Early stage cable type temperature sensor all is one-parameter, and promptly sensor has only an electrical quantity with temperature variation, reaches the target of temperature survey and overtemperature alarm through the value of measuring this electrical quantity.In some rugged surroundings, the easy appearance mistake affected by environment of one-parameter cable type temperature sensor is surveyed the wrong report phenomenon.To these problems; The solution of this patent is cable output two electrical quantitys---resistance and a voltage; Two electrical quantitys are all with temperature variation; Through measuring two electrical quantitys simultaneously, can improve the reliability of measuring with overtemperature alarm greatly, at present the domestic relevant report of also not seen this type of temperature survey and overtemperature alarm cable.
Summary of the invention
The object of the invention is exactly to survey the deficiency of wrong report to the easy appearance mistake affected by environment of one-parameter cable type temperature sensor; A kind of maximum temperature that it goes up existence along the line of not only can measuring in real time is provided; Local overheating is implemented to report to the police; Also medial temperature along the line be can measure, the two-parameter temperature variant temperature survey of resistance, voltage and overtemperature alarm cable of bulk temperature situation along the line and preparation method thereof understood.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of temperature survey and overtemperature alarm cable based on resistance, voltage comprise restrictive coating, thermo-sensitive material, heart yearn, Cap, in restrictive coating, are filled with thermo-sensitive material; Cap is connected the right ends of restrictive coating, is full of fluid sealant in the Cap, and heart yearn is connected with compensating cable; It is characterized in that: said heart yearn is two; As the positive pole and the negative pole of cable, the positive pole of heart yearn is connected with the positive pole of compensating cable respectively, and the negative pole of heart yearn is connected with the negative pole of compensating cable; Between two heart yearns of or multiple twin parallel, and all be filled with thermo-sensitive material between heart yearn and the restrictive coating at two.
Be filled with the powder shaped thermo-sensitive material between two heart yearns, thermo-sensitive material is spaced from each other two heart yearns and heart yearn and restrictive coating; The powdery thermo-sensitive material is compacting, and closely contacts with heart yearn; Thermo-sensitive material is that resistivity has the single metal oxide of obvious sensitive characteristic or the oxide of the magnesium-yttrium-transition metal that is prone to appraise at the current rate, or the composite type metallic oxide that forms through sintering by specific proportioning with these oxides; The diameter of all parts or density or thickness are even.
The signal of cable of the present invention can be drawn from an end of cable; Also can draw from the two ends of cable simultaneously and become redundant exit; When using redundant exit, with the positive pole at two ends and the anodal short circuit positive pole as cable, negative pole and negative pole short circuit are as the negative pole of cable.When using redundant exit, when the intermediate mechanical of cable is broken off and fracture does not receive when polluting, but cable operate as normal still, the signal extension line is and the metal wire of heart yearn with material.
When the temperature T that goes up certain 1 A (also can be synthermal multiple spot or a section) based on resistance, the two-parameter temperature variant temperature survey of voltage and overtemperature alarm cable along the line
1When surpassing the temperature of cable remainder; Resistance can reduce between the heart yearn of this point; Thereby form " temporarily " hot junction at the A point, " temporarily " hot junction plays a part identical with the hot junction of common single contact thermopair, produces one and temperature T at this moment between two thermodes of cable
1Corresponding thermopower; If higher temperature T appears in second some B on the cable
2(T
2＞T
1), the ratio A point that resistance can fall between the heart yearn of this point is lower, then forms more efficiently electrical connection between B point two thermodes, and new " temporarily " hot junction has produced at the B point, exports one and temperature T again between the thermode simultaneously
2Corresponding thermopower; The thermopower of cable output always with cable on the maximum temperature that exists corresponding; Through measuring the thermopower of cable, know the maximum temperature on the cable, when the maximum temperature overtemperature, report to the police; Through measuring the resistance value between two thermodes,, can obtain the medial temperature of cable along the line according to the corresponding relation of resistance value and temperature.
The present invention exports the thermopower that signal is got two interpolars, i.e. voltage signal, and its size is corresponding with the maximum temperature on along the line; The output signal is got the resistance signal of two interpolars, and its size is corresponding with the medial temperature on along the line; Through the composition of change thermo-sensitive material and the thermode of proportioning and selection different model, can obtain the temperature survey and the overtemperature alarm cable of different temperatures characteristic.
Preferably, described heart yearn is a kind of in K type in the standard couple silk, N type, the E type.
Heart yearn is the standard couple silk, and like the K type in the standard couple, N type, E type etc., the present invention preferentially selects K type thermo wires for use, i.e. nickel-chrome just very, and negative pole is nickel silicon alloy or nickel alumin(i)um alloy; Restrictive coating is the heat-proof corrosion-resistant stainless steel material, preferentially selects Inconel 600 high temperature alloys for use.
K type standard couple silk, i.e. nickel-chrome just very, negative pole is the thermocouple wire of nisiloy or nickel alumin(i)um alloy; N type standard couple silk, i.e. nichrosi just very, negative pole is the thermocouple wire of nickel silicon alloy; E type standard couple silk, i.e. nickel-chrome just very, negative pole is the thermocouple wire of cupronickel.
Preferably, the diameter of described heart yearn is Φ 0.3mm～Φ 1.0mm.
Preferably, described thermo-sensitive material is a transition group metallic oxide.
Further preferred, described transition group metallic oxide thermo-sensitive material is one or more in manganese oxide, nickel oxide, iron oxide, cobalt oxide, cupric oxide, the zinc paste; Can be the composite oxides of manganese oxide, nickel oxide, iron oxide, cobalt oxide, cupric oxide, zinc paste, like manganese cobalt ni compound oxide, cobalt manganese ferronickel copper composite oxides etc.
Preferably, described fluid sealant is the epoxide resin type fluid sealant, like E7 type epoxy resin.
Above-mentioned based on the temperature survey of resistance, voltage and the preparation method of overtemperature alarm cable, it is characterized in that may further comprise the steps:
A), take by weighing transition group metallic oxide
Take by weighing transition group metallic oxide, carry out drying after mixing, carry out sintering after the drying, grind behind the sintering, the transition group metallic oxide that grinds is crossed 270～325 purpose screen clothes process thermo-sensitive material;
B), preparation thermo-sensitive material diplopore circular rod
Thermo-sensitive material is extruded into the diplopore circular rod through extruding;
C), assembling
The positive and negative electrode of heart yearn is penetrated respectively in two holes of diplopore circular rod thermo-sensitive material, the more circular thermo-sensitive material of diplopore is penetrated restrictive coating, restrictive coating, heart yearn and thermo-sensitive material are fitted together;
D), drawing
It is 2～3 millimeters silk material that the restrictive coating that fits together, heart yearn and thermo-sensitive material are drawn into diameter through drawbench cold-drawn processing;
E), cut silk
The silk material is cut into 3～40 meters length;
F), make web member
The silk material two ends heart yearn that cuts length is stripped out; Be connected through argon arc welding with the both positive and negative polarity of compensating wire respectively; With filling up fluid sealant in the Cap; The Cap that will fill up fluid sealant again is enclosed within a material two ends, makes through cold extrusion that Cap and restrictive coating are airtight to be connected, and promptly gets the temperature survey and the overtemperature alarm cable of resistance, voltage.
The beneficial effect of a kind of resistance of the present invention, the two-parameter temperature variant temperature survey of voltage and overtemperature alarm cable and preparation method thereof is, the thermopower that the output signal is got two interpolars, i.e. and voltage signal, its size is corresponding with the maximum temperature along the line; The output signal is got the resistance signal of two interpolars, and its size is corresponding with the medial temperature on along the line; Through the composition of change thermo-sensitive material and the thermode of proportioning and selection different model, can obtain the temperature survey and the overtemperature alarm of different temperatures characteristic.
Description of drawingsFig. 1 is a structural representation of the present invention.
EmbodimentBelow in conjunction with accompanying drawing the present invention is further described, but does not therefore limit the present invention among the described scope of embodiments.
Referring to Fig. 1, a kind of temperature survey and overtemperature alarm cable based on resistance, voltage comprise restrictive coating 1, thermo-sensitive material 2, heart yearn 3, Cap 4; In restrictive coating 1, be filled with thermo-sensitive material 2, Cap 4 is connected the right ends of restrictive coating 1, is full of fluid sealant 5 in the Cap 4; Heart yearn 3 is connected with compensating cable 6, and said heart yearn 3 is two, respectively as the positive pole and the negative pole of cable; The positive pole of heart yearn 3 is connected with the positive pole of compensating cable 6; The negative pole of heart yearn 3 is connected with the negative pole of compensating cable 6, between two heart yearns 3 of or multiple twin parallel at two, and all is filled with thermo-sensitive material 2 between heart yearn 3 and the restrictive coating 1.
Described heart yearn 3 is a K type in the standard couple silk.
The diameter of described heart yearn 3 is Φ 0.3mm.
Described thermo-sensitive material 2 is the transition group metallic oxide manganese oxide.
Described fluid sealant 5 is the ZB3218 epoxy type casting glue that shellfish Electronics Co., Ltd. produces in the Nanjing; ZB3311 flexible epoxy type casting glue.
Above-mentioned based on the temperature survey of resistance, voltage and the preparation method of overtemperature alarm cable, it is characterized in that may further comprise the steps:
A), take by weighing transition group metallic oxide
Take by weighing the transition group metallic oxide manganese oxide, carry out drying after mixing, carry out sintering after the drying, grind behind the sintering, the transition group metallic oxide that grinds is crossed 270 screen cloth and processed thermo-sensitive material 2;
B), preparation thermo-sensitive material diplopore circular rod
Thermo-sensitive material 2 manganese oxide are extruded into the diplopore circular rod through extruding;
C), assembling
The positive and negative electrode of heart yearn 3 is penetrated respectively in two holes of manganese oxide diplopore circular rod thermo-sensitive material 2, the more circular thermo-sensitive material 2 of manganese oxide diplopore is penetrated restrictive coating 1, restrictive coating 1, heart yearn 3 and manganese oxide thermo-sensitive material 2 are fitted together;
D), the restrictive coating that fits together 1, heart yearn 3 and manganese oxide thermo-sensitive material 2 being drawn into diameter through drawbench cold-drawn processing is 2～3 millimeters silk material;
E), cut silk
The silk material is cut into 3 meters length;
F), make web member
The silk material two ends heart yearn that cuts length is stripped out; Be connected through argon arc welding with the both positive and negative polarity of compensating wire respectively; With filling up fluid sealant 5 in the Cap 4; The Cap 4 that will fill up fluid sealant 5 again is enclosed within a material two ends, makes Cap 4 and 1 airtight connection of restrictive coating through cold extrusion, promptly gets the temperature survey and the overtemperature alarm cable of resistance, voltage.
Referring to Fig. 1, a kind of temperature survey and overtemperature alarm cable based on resistance, voltage comprise restrictive coating 1, thermo-sensitive material 2, heart yearn 3, Cap 4; In restrictive coating 1, be filled with thermo-sensitive material 2, Cap 4 is connected the right ends of restrictive coating 1, is full of fluid sealant 5 in the Cap 4; Heart yearn 3 is connected with compensating cable 6, it is characterized in that: said heart yearn 3 is two, respectively as the positive pole and the negative pole of cable; The positive pole of heart yearn 3 is connected with the positive pole of compensating cable 6; The negative pole of heart yearn 3 is connected with the negative pole of compensating cable 6, between two heart yearns 3 of or multiple twin parallel at two, and all is filled with thermo-sensitive material 2 between heart yearn 3 and the restrictive coating 1.
Described heart yearn 3 is an E type in the standard couple silk.
The diameter of described heart yearn 3 is Φ 0.8mm.
Described thermo-sensitive material 2 is the composite oxides of transition group metallic oxide iron oxide, gasification cobalt and nickel oxide.
Described fluid sealant 5 is an E7 type epoxy resin.The E-7 type epoxy resin that Shanghai synthetic resin research institute produces.
Above-mentioned based on the temperature survey of resistance, voltage and the preparation method of overtemperature alarm cable, it is characterized in that may further comprise the steps:
A), take by weighing transition group metallic oxide
Take by weighing transition group metallic oxide; Ratio is an iron oxide: gasification cobalt: nickel oxide=4:1:4, carry out drying after mixing, and sinter the iron-cobalt-nickel composite oxides after the drying into; Grind behind the sintering, the composite oxides that grind are crossed 300 screen cloth and processed thermo-sensitive material 2;
B), preparation thermo-sensitive material diplopore circular rod
Thermo-sensitive material 2 is extruded into the diplopore circular rod through extruding;
C), assembling
The positive and negative electrode of heart yearn 3 is penetrated respectively in two holes of diplopore circular rod thermo-sensitive material 2, the more circular thermo-sensitive material 2 of diplopore is penetrated restrictive coating 1, restrictive coating 1, heart yearn 3 and thermo-sensitive material 2 are fitted together;
D), the restrictive coating that fits together 1, heart yearn 3 and thermo-sensitive material 2 being drawn into diameter through drawbench cold-drawn processing is 2～3 millimeters silk material;
E), cut silk
The silk material is cut into 20 meters length;
F), make web member
The silk material two ends heart yearn that cuts length is stripped out; Be connected through argon arc welding with the both positive and negative polarity of compensating wire respectively; With filling up fluid sealant 5 in the Cap 4; The Cap 4 that will fill up fluid sealant 5 again is enclosed within a material two ends, makes Cap 4 and 1 airtight connection of restrictive coating through cold extrusion, promptly gets the temperature survey and the overtemperature alarm cable of resistance, voltage.
Embodiment 3
Referring to Fig. 1, a kind of temperature survey and overtemperature alarm cable based on resistance, voltage comprise restrictive coating 1, thermo-sensitive material 2, heart yearn 3, Cap 4; In restrictive coating 1, be filled with thermo-sensitive material 2, Cap 4 is connected the right ends of restrictive coating 1, is full of fluid sealant 5 in the Cap 4; Heart yearn 3 is connected with compensating cable 6, it is characterized in that: said heart yearn 3 is two, respectively as the positive pole and the negative pole of cable; The positive pole of heart yearn 3 is connected with the positive pole of compensating cable 6; The negative pole of heart yearn 3 is connected with the negative pole of compensating cable 6, between two heart yearns 3 of or multiple twin parallel at two, and all is filled with thermo-sensitive material 2 between heart yearn 3 and the restrictive coating 1.
Described heart yearn 3 is a N type in the standard couple silk.
The diameter of described heart yearn 3 is Φ 1.0mm.
Described thermo-sensitive material 2 is the composite oxides of transition group metallic oxide manganese oxide, nickel oxide and iron oxide.
Described fluid sealant 5 is an E7 type epoxy resin.The ZB3210 flame retardant epoxy type casting glue that shellfish Electronics Co., Ltd. produces in the Nanjing;
Above-mentioned based on the temperature survey of resistance, voltage and the preparation method of overtemperature alarm cable, it is characterized in that may further comprise the steps:
A), take by weighing transition group metallic oxide
Take by weighing transition group metallic oxide; Ratio is a manganese oxide: nickel oxide: iron oxide=7:2:1, carry out drying after mixing, and sinter manganese ferronickel composite oxides after the drying into; Grind behind the sintering, the composite oxides that grind are crossed 325 purpose screen clothes process thermo-sensitive material 2;
B), preparation thermo-sensitive material diplopore circular rod
Thermo-sensitive material 2 is extruded into the diplopore circular rod through extruding;
C), assembling
The positive and negative electrode of heart yearn 3 is penetrated respectively in two holes of diplopore circular rod thermo-sensitive material 2, the more circular thermo-sensitive material 2 of diplopore is penetrated restrictive coating 1, restrictive coating 1, heart yearn 3 and thermo-sensitive material 2 are fitted together;
D), the restrictive coating that fits together 1, heart yearn 3 and thermo-sensitive material 2 being drawn into diameter through drawbench cold-drawn processing is 2～3 millimeters silk material;
E), cut silk
The silk material is cut into 40 meters length;
F), make web member
The silk material two ends heart yearn that cuts length is stripped out; Be connected through argon arc welding with the both positive and negative polarity of compensating wire respectively; With filling up fluid sealant 5 in the Cap 4; The Cap 4 that will fill up fluid sealant 5 again is enclosed within a material two ends, makes Cap 4 and 1 airtight connection of restrictive coating through cold extrusion, promptly gets the temperature survey and the overtemperature alarm cable of resistance, voltage.
Other just replace with manganese oxide with quick material 2: the potpourri of nickel oxide: iron oxide: cobalt oxide: cupric oxide=2:1:1:2:1 with embodiment 1.
Other just replace with quick material 2 potpourri of manganese oxide, nickel oxide, iron oxide, cobalt oxide, cupric oxide, zinc paste=1:2:1:2:2:0.5 with embodiment 1.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention; The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection; The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (7)
1. temperature survey and overtemperature alarm cable based on resistance, a voltage; Comprise restrictive coating (1), thermo-sensitive material (2), heart yearn (3), Cap (4), in restrictive coating (1), be filled with thermo-sensitive material (2), Cap (4) is connected the right ends of restrictive coating (1); Be full of fluid sealant (5) in the Cap (4); Heart yearn (3) is connected with compensating cable (6), it is characterized in that: said heart yearn (3) is two, respectively as the positive pole and the negative pole of cable; The positive pole of heart yearn (3) is connected with the positive pole of compensating cable (6); The negative pole of heart yearn (3) is connected with the negative pole of compensating cable (6), between two heart yearns (3) of or multiple twin parallel at two, and all is filled with thermo-sensitive material (2) between heart yearn (3) and the restrictive coating (1).
2. temperature survey and overtemperature alarm cable based on resistance, voltage according to claim 1 is characterized in that: a kind of in K type, N type, the E type in the standard couple silk of described heart yearn (3).
3. temperature survey and overtemperature alarm cable based on resistance, voltage according to claim 2 is characterized in that: the diameter of described heart yearn (3) is Φ 0.3mm～Φ 1.0mm.
4. temperature survey and overtemperature alarm cable based on resistance, voltage according to claim 1 is characterized in that: described thermo-sensitive material (2) is a transition group metallic oxide.
5. temperature survey and overtemperature alarm cable based on resistance, voltage according to claim 4 is characterized in that: described transition group metallic oxide thermo-sensitive material (2) is one or more in manganese oxide, nickel oxide, iron oxide, cobalt oxide, cupric oxide, the zinc paste.
6. temperature survey and overtemperature alarm cable based on resistance, voltage according to claim 1 is characterized in that: described fluid sealant (5) is the epoxide resin type fluid sealant.
7. claim 1 is said based on the temperature survey of resistance, voltage and the preparation method of overtemperature alarm cable, it is characterized in that may further comprise the steps:
A), take by weighing transition group metallic oxide
Take by weighing transition group metallic oxide, carry out drying after mixing, carry out sintering after the drying, grind behind the sintering, the transition group metallic oxide that grinds is crossed 270～325 purpose screen clothes process thermo-sensitive material (2);
B), preparation thermo-sensitive material diplopore circular rod
Thermo-sensitive material (2) is extruded into the diplopore circular rod through extruding;
C), assembling
The positive and negative electrode of heart yearn (3) is penetrated respectively in two holes of diplopore circular rod thermo-sensitive material (2), the more circular thermo-sensitive material of diplopore (2) is penetrated restrictive coating (1), restrictive coating (1), heart yearn (3) and thermo-sensitive material (2) are fitted together;
D), the restrictive coating that fits together (1), heart yearn (3) and thermo-sensitive material (2) being drawn into diameter through drawbench cold-drawn processing is 2～3 millimeters silk material;
E), cut silk
The silk material is cut into 3～40 meters length;
F), make web member
The silk material two ends heart yearn that cuts length is stripped out; Be connected through argon arc welding with the both positive and negative polarity of compensating wire respectively; With filling up fluid sealant (5) in the Cap (4); The Cap (4) that will fill up fluid sealant (5) again is enclosed within a material two ends, makes Cap (4) and airtight connection of restrictive coating (1) through cold extrusion, promptly gets the temperature survey and the overtemperature alarm cable of resistance, voltage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146720XA CN102636279A (en) | 2012-05-14 | 2012-05-14 | Resistance and voltage temperature measurement and over-temperature alarm cable and preparation method thereof |
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| CN201210146720XA CN102636279A (en) | 2012-05-14 | 2012-05-14 | Resistance and voltage temperature measurement and over-temperature alarm cable and preparation method thereof |
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Cited By (2)
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| CN102998018A (en) * | 2012-11-28 | 2013-03-27 | 安徽埃克森科技集团有限公司 | Absorbing thermocouple |
| CN108207271A (en) * | 2017-12-15 | 2018-06-29 | 浙江农林大学 | A kind of harvester, which shakes, sieves automatic warning device |
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Cited By (3)
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| CN102998018A (en) * | 2012-11-28 | 2013-03-27 | 安徽埃克森科技集团有限公司 | Absorbing thermocouple |
| CN108207271A (en) * | 2017-12-15 | 2018-06-29 | 浙江农林大学 | A kind of harvester, which shakes, sieves automatic warning device |
| CN108207271B (en) * | 2017-12-15 | 2019-12-24 | 浙江农林大学 | Automatic early warning device for harvester vibrating screen |
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Application publication date: 20120815 |