CN105571731A - Anti-corrosion full metal temperature transmitter - Google Patents
Anti-corrosion full metal temperature transmitter Download PDFInfo
- Publication number
- CN105571731A CN105571731A CN201610118304.7A CN201610118304A CN105571731A CN 105571731 A CN105571731 A CN 105571731A CN 201610118304 A CN201610118304 A CN 201610118304A CN 105571731 A CN105571731 A CN 105571731A
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- CN
- China
- Prior art keywords
- temperature transmitter
- metal temperature
- probe
- output
- corrosion resistant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
- G01K1/10—Protective devices, e.g. casings for preventing chemical attack
Abstract
he invention provides an anti-corrosion full metal temperature transmitter. The anti-corrosion full metal temperature transmitter comprises a casing, a cable connector, a probe and a plastic member, wherein the cable connector is accessed from an upper portion of the casing, the cable connector is fixedly locked with an inner wall of the casing through a nut, the probe and the casing are fixed through interference fit, the plastic member is arranged in the casing, the casing is internally provided with a circuit structure used for controlling work of a temperature transmitter, the circuit structure is fixed in the casing through the plastic member, the plastic member is a semi-circle structure, and a semi-circle inner wall of the plastic member is provided with a bayonet. The structure is prepared by a special material and has properties of anti-corrosion and durable properties, high reliability and strong anti-interference capability, the interference fit no-sealing structure is employed, the protection grade can reach an IP68 grade, the structure is simple, the volume is small, mounting and maintenance are convenient, the plastic member structure is employed, and anti-vibration, shielding and anti-interference capabilities of products are improved.
Description
Technical field
The present invention relates to the temperature monitoring system field in instrument and meter industry, particularly relate to a kind of corrosion resistant type all-metal temperature transmitter.
Background technology
Temperature transmitter is widely used in steam generator system, cooling system and air-conditioning system.It utilizes perceptron to the susceptibility of temperature slight change to detect the temperature regime of residing environment.General temperature transmitter output signal is single, and be easily subject to external interference, and precision is not high, great majority are based on overall embedding, and complex process, cost are high, maintenance is inconvenient.Although existing temperature transmitter can ensure sealing and water proofing property, cannot acid and alkali-resistance, corrosion, cannot use in high temperature and high pressure environment, make its application limited.
Patent documentation CN202793681U discloses a kind of temperature transmitter, relates to temperature measuring equipment, is specifically related to the improvement opportunity of the temperature transmitter structure of thermojunction type.Comprise signal converter and thermopair, outside thermopair, have sleeve pipe; There is display signal converter upper end, has upper cover above display, and upper cover is connected with signal converter outer casing screw; Tubular bodies is connected with in signal converter lower end; protective sleeve upper end is connected with a sleeve pipe; sleeve pipe internal thread and tubular bodies surface external thread coordinates and tubular bodies and sleeve pipe is linked together; between thermopair and signal converter, be connected with compensation lead of thermocouple, compensation lead of thermocouple stage casing is arranged in the endoporus of tubular bodies and sleeve pipe.This temperature transmitter cannot acid and alkali-resistance, corrosion, cannot use in high temperature and high pressure environment, make its application limited.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the invention is to provide a kind of corrosion resistant type all-metal temperature transmitter, has that anticorrosive property is good, reliability is high, antijamming capability is strong, has the multiple way of output and defencive function.
For achieving the above object and other relevant objects, the invention provides a kind of corrosion resistant type all-metal temperature transmitter, comprise housing, cable splice, probe, plastic parts, described cable splice loads from the top of described housing, described cable splice is by the inwall fixing and locking of nut and described housing, described probe and described housing are fixed by interference fit, described plastic parts is arranged in described housing, the circuit structure of control temperature transmitter work is provided with in described housing, described circuit structure is fixed in described housing by described plastic parts, described plastic parts is semicircle shape, the inwall of plastic parts semicircle shape is provided with bayonet socket, this bayonet socket is used for fixing circuit structure, antivibration can be played, shielding, jamproof effect.
Preferably, the upper surface of described probe is provided with a circular hole, the aperture≤2mm of described circular hole, and described circular hole is used for ground wire, strengthens product antijamming capability.
Preferably, the middle part of described probe is provided with two symmetrical stubborn spanner draw-in grooves, and the top of described probe is provided with a draw-in groove, is provided with sealing gasket, plays waterproof sealing effect in described draw-in groove.
Preferably, described circuit structure comprises temperature detecting unit, filtering circuit, single-chip microcomputer, D/A modular converter, analog output, output switch parameter and output protection unit, described temperature detecting unit is connected with described filtering circuit, described filtering circuit is connected with described single-chip microcomputer, described output switch parameter is connected with described output protection unit, described output protection unit is connected with described single-chip microcomputer, described single-chip microcomputer is connected with described D/A modular converter, described D/A modular converter is connected with described analog output, described analog output comprises analog voltage and exports and analog current output.
Detection signal is transferred to described single-chip microcomputer by described temperature detecting unit after filtering circuit process, described single-chip microcomputer is by internal data process and conversion, described output switch parameter comprises switching value NPN and exports and switching value PNP output, one output terminal connecting valve amount NPN exports and switching value PNP exports, give described single-chip microcomputer through output protection unit by signal feedback again, described single-chip microcomputer determines whether to export and normally outputs signal again; Another output terminal of described single-chip microcomputer is also exported by D/A converting unit connection mode analog quantity voltage and analog current signal exports.
Preferably, described temperature detecting unit is a digital temperature-sensitive chip.
Preferably, the analog quantity that described analog quantity voltage exports is 0-10V, and the analog quantity that described analog quantity electric current exports is 4-20mA.
Preferably, described housing, cable splice, probe all adopt stainless steel or titanium alloy or polytetrafluoroethylmaterial material to make.
As mentioned above, a kind of corrosion resistant type all-metal temperature transmitter provided by the invention, has following beneficial effect: this structure adopts particulate metal material to make, anticorrosion durable, reliability is high, antijamming capability is strong; Adopt interference fit not embedding structure, degree of protection can reach IP68, and structure is simple, volume is little, installation and maintenance are convenient; Adopt plastic parts structure, enhance the antivibration of product, shielding, antijamming capability; Adopt ground wire mode, the inner excess charge of release circuit and interference, strengthen product antijamming capability; Meanwhile, this corrosion resistance all-metal temperature sensor also has the multiple way of output and defencive function, can measure liquids and gases.
Accompanying drawing explanation
Fig. 1 is a kind of one-piece construction schematic diagram of corrosion resistant type all-metal temperature transmitter.
Fig. 2 is the schematic diagram of the circuit structure of corrosion resistant type all-metal temperature transmitter.
1-cable splice, 2-housing, 21-plastic parts, 22-circuit structure, 3-pops one's head in, 31-sealing gasket.
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this instructions can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 and Fig. 2.Notice, structure, ratio, size etc. that this instructions institute accompanying drawings illustrates, content all only in order to coordinate instructions to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this instructions as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As depicted in figs. 1 and 2, the invention provides a kind of corrosion resistant type all-metal temperature transmitter, comprise housing 2, cable splice 1, probe 3, plastic parts 21, described cable splice 1 loads from the top of described housing 2, described cable splice 1 is by the inwall fixing and locking of nut and described housing 2, described probe 3 is fixed by interference fit with described housing 2, described plastic parts 21 is arranged in described housing 2, the circuit structure 22 of control temperature transmitter work is provided with in described housing 2, described circuit structure 22 is fixed in described housing 2 by described plastic parts 21, described plastic parts 21 is in semicircle shape, the inwall of plastic parts 21 semicircle shape is provided with bayonet socket, this bayonet socket is used for fixing circuit structure, antivibration can be played, shielding, jamproof effect.
In the present embodiment, the upper surface of described probe 3 is provided with a circular hole, the aperture≤2mm of described circular hole, and described circular hole is used for ground wire, strengthens product antijamming capability.
In the present embodiment, the middle part of described probe 3 is provided with two symmetrical stubborn spanner draw-in grooves, and the top of described probe is provided with a draw-in groove, is provided with sealing gasket 31, plays waterproof sealing effect in described draw-in groove.
In the present embodiment, described circuit structure comprises temperature detecting unit, filtering circuit, single-chip microcomputer, D/A modular converter, analog output, output switch parameter and output protection unit, described temperature detecting unit is connected with described filtering circuit, described filtering circuit is connected with described single-chip microcomputer, described output switch parameter is connected with described output protection unit, described output protection unit is connected with described single-chip microcomputer, described single-chip microcomputer is connected with described D/A modular converter, described D/A modular converter is connected with described analog output, described analog output comprises analog voltage and exports and analog current output.
Detection signal is transferred to described single-chip microcomputer by described temperature detecting unit after filtering circuit process, described single-chip microcomputer is by internal data process and conversion, described output switch parameter comprises switching value NPN and exports and switching value PNP output, one output terminal connecting valve amount NPN exports and switching value PNP exports, give described single-chip microcomputer through output protection unit by signal feedback again, described single-chip microcomputer determines whether to export and normally outputs signal again; Another output terminal of described single-chip microcomputer is also exported by D/A converting unit connection mode analog quantity voltage and analog current signal exports.
In the present embodiment, described temperature detecting unit is a digital temperature-sensitive chip.
In the present embodiment, the analog quantity that described analog quantity voltage exports is 0-10V, and the analog quantity that described analog quantity electric current exports is 4-20mA.
Preferably, described housing 2, cable splice 1, probe 3 all adopt stainless steel or titanium alloy or polytetrafluoroethylmaterial material to make.
In sum, the invention provides a kind of corrosion resistant type all-metal temperature transmitter, this structure adopts particulate metal material to make, anticorrosion durable, reliability is high, antijamming capability is strong; Adopt interference fit not embedding structure, degree of protection can reach IP68, and structure is simple, volume is little, installation and maintenance are convenient; Adopt plastic parts structure, enhance the antivibration of product, shielding, antijamming capability; Adopt ground wire mode, the inner excess charge of release circuit and interference, strengthen product antijamming capability; Meanwhile, this corrosion resistance all-metal temperature sensor also has the multiple way of output and defencive function, can measure liquids and gases.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (6)
1. a corrosion resistant type all-metal temperature transmitter, it is characterized in that: comprise housing, cable splice, probe, plastic parts, described cable splice loads from the top of described housing, described cable splice is by the inwall fixing and locking of nut and described housing, described probe and described housing are fixed by interference fit, described plastic parts is arranged in described housing, the circuit structure of control temperature transmitter work is provided with in described housing, described circuit structure is fixed in described housing by described plastic parts, described plastic parts is semicircle shape, the inwall of plastic parts semicircle shape is provided with bayonet socket.
2. a kind of corrosion resistant type all-metal temperature transmitter according to claim 1, is characterized in that: the upper surface of described probe is provided with a circular hole, the aperture≤2mm of described circular hole.
3. a kind of corrosion resistant type all-metal temperature transmitter according to claim 2, is characterized in that: the middle part of described probe is provided with two symmetrical stubborn spanner draw-in grooves, and the top of described probe is provided with a draw-in groove, is provided with sealing gasket in described draw-in groove.
4. a kind of corrosion resistant type all-metal temperature transmitter according to claim 1, it is characterized in that: described circuit structure comprises temperature detecting unit, filtering circuit, single-chip microcomputer, D/A modular converter, analog output, output switch parameter and output protection unit, described temperature detecting unit is connected with described filtering circuit, described filtering circuit is connected with described single-chip microcomputer, described output switch parameter is connected with described output protection unit, described output protection unit is connected with described single-chip microcomputer, described single-chip microcomputer is connected with described D/A modular converter, described D/A modular converter is connected with described analog output, described analog output comprises analog voltage and exports and analog current output.
5. a kind of corrosion resistant type all-metal temperature transmitter according to claim 4, is characterized in that: described temperature detecting unit is a digital temperature-sensitive chip.
6. a kind of corrosion resistant type all-metal temperature transmitter according to claim 4, is characterized in that: the analog quantity that described analog quantity voltage exports is 0-10V, and the analog quantity that described analog quantity electric current exports is 4-20mA.
A kind of corrosion resistant type all-metal temperature transmitter according to claim 1, it is characterized in that: preferably, described housing, cable splice, probe all adopt stainless steel or titanium alloy or polytetrafluoroethylmaterial material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118304.7A CN105571731A (en) | 2016-03-02 | 2016-03-02 | Anti-corrosion full metal temperature transmitter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118304.7A CN105571731A (en) | 2016-03-02 | 2016-03-02 | Anti-corrosion full metal temperature transmitter |
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| Publication Number | Publication Date |
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| CN105571731A true CN105571731A (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610118304.7A Pending CN105571731A (en) | 2016-03-02 | 2016-03-02 | Anti-corrosion full metal temperature transmitter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404204A (en) * | 2016-05-31 | 2017-02-15 | 大庆市镁龙测控技术有限公司 | Integrated temperature transmitter |
| CN106441606A (en) * | 2016-10-25 | 2017-02-22 | 伊玛精密电子（苏州）有限公司 | Hygiene-grade corrosion-resistant temperature sensor |
| CN113267713A (en) * | 2021-05-28 | 2021-08-17 | 东方电气集团东方电机有限公司 | Winding insulation electric-thermal-mechanical combined accelerated aging device and method |
| CN114575829A (en) * | 2022-05-06 | 2022-06-03 | 东营佰旺商贸有限公司 | Temperature transmitter with over-temperature protection function for oil field |
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| EP2035795A1 (en) * | 2006-02-22 | 2009-03-18 | Honeywell International Inc. | Temperature sensor that achieves a fast response in an exhaust gas environment |
| DE102009028662A1 (en) * | 2008-08-19 | 2010-05-27 | Ifm Electronic Gmbh | Arrangement for connecting e.g. gauge with medium container to measure pressure of medium in dairy plant, has sealing element made of material with specific elasticity modulus, so that maximum compression takes place in quasi-linear region |
| CN204854854U (en) * | 2015-06-08 | 2015-12-09 | 伊玛精密电子（苏州）有限公司 | Intelligent flow sensor of corrosion -resistant all -metal |
| CN204855080U (en) * | 2015-06-08 | 2015-12-09 | 伊玛精密电子（苏州）有限公司 | Corrosion -resistant type all -metal pressure sensor |
| CN204881898U (en) * | 2015-06-08 | 2015-12-16 | 伊玛精密电子（苏州）有限公司 | Full metal temperature sensor of corrosion -resistant type |
| CN205483287U (en) * | 2016-03-02 | 2016-08-17 | 伊玛精密电子（苏州）有限公司 | Full metal temperature changer of corrosion -resistant type |
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2016
- 2016-03-02 CN CN201610118304.7A patent/CN105571731A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2035795A1 (en) * | 2006-02-22 | 2009-03-18 | Honeywell International Inc. | Temperature sensor that achieves a fast response in an exhaust gas environment |
| DE102009028662A1 (en) * | 2008-08-19 | 2010-05-27 | Ifm Electronic Gmbh | Arrangement for connecting e.g. gauge with medium container to measure pressure of medium in dairy plant, has sealing element made of material with specific elasticity modulus, so that maximum compression takes place in quasi-linear region |
| CN204854854U (en) * | 2015-06-08 | 2015-12-09 | 伊玛精密电子（苏州）有限公司 | Intelligent flow sensor of corrosion -resistant all -metal |
| CN204855080U (en) * | 2015-06-08 | 2015-12-09 | 伊玛精密电子（苏州）有限公司 | Corrosion -resistant type all -metal pressure sensor |
| CN204881898U (en) * | 2015-06-08 | 2015-12-16 | 伊玛精密电子（苏州）有限公司 | Full metal temperature sensor of corrosion -resistant type |
| CN205483287U (en) * | 2016-03-02 | 2016-08-17 | 伊玛精密电子（苏州）有限公司 | Full metal temperature changer of corrosion -resistant type |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404204A (en) * | 2016-05-31 | 2017-02-15 | 大庆市镁龙测控技术有限公司 | Integrated temperature transmitter |
| CN106441606A (en) * | 2016-10-25 | 2017-02-22 | 伊玛精密电子（苏州）有限公司 | Hygiene-grade corrosion-resistant temperature sensor |
| CN113267713A (en) * | 2021-05-28 | 2021-08-17 | 东方电气集团东方电机有限公司 | Winding insulation electric-thermal-mechanical combined accelerated aging device and method |
| CN113267713B (en) * | 2021-05-28 | 2023-05-26 | 东方电气集团东方电机有限公司 | Winding insulation electric-thermal-mechanical combined accelerated aging device and method |
| CN114575829A (en) * | 2022-05-06 | 2022-06-03 | 东营佰旺商贸有限公司 | Temperature transmitter with over-temperature protection function for oil field |
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Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |