CN103604519B - A kind of compensating wire formula structural glass encapsulation thermocouple - Google Patents
A kind of compensating wire formula structural glass encapsulation thermocouple Download PDFInfo
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- CN103604519B CN103604519B CN201310517881.XA CN201310517881A CN103604519B CN 103604519 B CN103604519 B CN 103604519B CN 201310517881 A CN201310517881 A CN 201310517881A CN 103604519 B CN103604519 B CN 103604519B
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Abstract
The invention discloses a kind of adjustable-length compensating wire formula glass-encapsulated thermocouple, comprising: thermocouple, is arranged with insulation protective jacket outward; Be connected with lead-in wire by jam nut, and junction is arranged with stainless steel interface; Spring, be located at lead-in wire with stainless steel interface link, the other end of lead-in wire is connected with wiring fork; Deposit line wheel, be arranged on lead-in wire one end away from stainless steel interface, can rotate around the axis, two patch cords enter from the incoming line of depositing line wheel, deposit respectively in the first winding slot and the second winding slot, and derive from the line outlet of depositing line wheel. In the present invention, adopt the thermocouple sealing with compensating wire of glass-encapsulated to be better than resin glue product, and 150 DEG C of the environment for use temperature ranges of glass-encapsulated product are promoted to 600 DEG C; In addition, increase compensating wire governor motion, can lengthen as required or shorten compensating wire, to reduce to measure the error of temperature and actual work temperature.
Description
Technical field
The present invention relates to thermocouple technical field, relate in particular to a kind of adjustable-length compensating wire formula glass-encapsulated thermocouple.
Background technology
Thermocouple is temperature element conventional in temperature measuring instrument, and it directly measures temperature, and temperature signal is converted to thermo-electromotive force signal, converts the temperature of measured medium by electric meter to. The profile of various thermocouples is often not identical because of needs, but their basic structure is roughly the same, is conventionally made up of major parts such as thermode, insulation sleeve protection tube and terminal boxes, and common and Displaying Meter, recording apparatus and electronic controller support the use.
In the time of thermocouple temperature measurement, accessible measuring instrument, records after thermo-electromotive force, can know the temperature of measured medium. When thermocouple measuring temperature, require the temperature of its cold junction (measuring junction is hot junction, is called cold junction by the end that is connected with measuring circuit of lead-in wire) to remain unchanged, its thermoelectrical potential size ability and measurement temperature are certain proportionate relationship. If while measurement, (environment) variations in temperature of cold junction, will have a strong impact on the accuracy of measurement. To be called the cold junction compensation of thermocouple normal because cold junction temperature changes the impact causing to take certain measure compensation at cold junction, and common connection with measuring instrument used special compensating wire.
At present, have in certain temperature range and a pair of wire with insulating barrier of mated hot thermocouple electromotive force same nominal value with the thermocouple of compensating wire, this connects thermocouple and measurement mechanism to wire, with the error that variations in temperature was produced of compensated measurement device and thermocouple junction. In thermocouple production process with compensating wire, the fixing etc. of fixing, the connector of airtight, the connecting line of high temperature filler adopts resin glue to carry out embedding mostly, but, in operating process, often run into the airtight bad gas leakage of resin glue and make product rejection, do over again. In addition, the length of compensating wire can not be adjusted, and is not inconsistent once there is design length and physical length, cannot adjust, and causes the temperature of measuring to have error with actual required operating temperature.
Summary of the invention
The problem existing for prior art, the invention reside in and proposed a kind of adjustable-length compensating wire formula glass-encapsulated thermocouple, to improve sealing and temperature applicable range, and can regulate compensating wire length according to actual conditions, to reduce to measure the error of temperature and actual work temperature.
A kind of adjustable-length compensating wire formula glass-encapsulated thermocouple, comprising:
Thermocouple, is arranged with insulation protective jacket outward; Be connected with lead-in wire by jam nut, and junction is arranged with stainless steel interface;
Spring, be located at lead-in wire with stainless steel interface link, the other end of lead-in wire is connected with wiring fork;
Deposit line wheel, be arranged on lead-in wire one end away from stainless steel interface, can rotate around the axis, two patch cords enter from the incoming line of depositing line wheel, deposit respectively in the first winding slot and the second winding slot, and derive from the line outlet of depositing line wheel.
Preferably, rotating shaft is provided with torsion spring, and in the time that wiring fork is derived from depositing the line outlet of line wheel, torsion spring is tightened; After the external force deriving disappears, wiring fork is regained and is deposited line wheel under torsion spring active force.
Preferably, rotating shaft is provided with retaining mechanism, and at locking state, wiring fork can not derive or regain.
Preferably, described retaining mechanism is draw-in groove and buckle structure.
Preferably, also comprise cushion, be arranged between thermocouple and insulation protective jacket.
Preferably, between stainless steel interface and lead-in wire, adopt glass capsulation.
Preferably, jam nut adopts glass capsulation with lead-in wire junction.
Preferably, jam nut and thermocouple junction adopt glass capsulation.
Preferably, glass capsulation comprises: soda-lime glass, potash glass or borate glass.
In the present invention, adopt the thermocouple sealing with compensating wire of glass-encapsulated to be better than resin glue product, and 150 DEG C of the environment for use temperature ranges of glass-encapsulated product are promoted to 600 DEG C; In addition, increase compensating wire governor motion, can lengthen as required or shorten compensating wire, to reduce to measure the error of temperature and actual work temperature.
Brief description of the drawings
Fig. 1 is the structure chart of a kind of adjustable-length compensating wire formula glass-encapsulated thermocouple in the embodiment of the present invention;
Fig. 2 is the structure sectional view of radio and tape player of going between in a kind of adjustable-length compensating wire formula glass-encapsulated thermocouple in the embodiment of the present invention.
Reference numeral:
31, wiring fork; 32, lead-in wire; 33, spring; 34, thermocouple; 35, stainless steel interface; 36, jam nut; 37, cushion; 38, insulation protective jacket; 39, deposit line wheel; 40, rotating shaft; 41, the first winding slots; 42, the second winding slots.
Detailed description of the invention
The embodiment of the present invention provides a kind of adjustable-length compensating wire formula glass-encapsulated thermocouple, as depicted in figs. 1 and 2, comprising: thermocouple 34, is arranged with cushion 37 and insulation protective jacket 38 outward; 32 be connected with lead-in wire by jam nut 36, and junction is arranged with stainless steel interface 35, to realize sealing; Lead-in wire 32 be provided with spring 33 with described stainless steel interface 35 links, lead-in wire 32 the other end is connected with wiring fork 31; Wiring fork 31, for being connected with measuring instrument, realizes the transmission of the signal of telecommunication; Deposit line wheel 39, be arranged on lead-in wire 32 one end away from stainless steel interface 35, can 40 rotate around the shaft, two patch cords 31 enter from the incoming line of depositing line wheel 39, deposit respectively in the first winding slot 41 and the second winding slot 42, then derive from the line outlet of depositing line wheel 39.
Rotating shaft 40 is provided with torsion spring, and in the time that wiring fork 31 is derived from depositing the line outlet of line wheel 39, torsion spring is tightened, storage elasticity potential energy; After the external force deriving disappears, wiring fork 31 is regained and is deposited line wheel 39 under torsion spring active force.
Rotating shaft 40 is provided with retaining mechanism, and at locking state, wiring fork 31 can not derive or regain; For example after wiring fork 31 is derived 5 meters, connect measurement device, by closing retaining mechanism, make wiring fork 31 in stable state. Retaining mechanism can be draw-in groove and buckle structure.
Stainless steel interface 35 is cured encapsulation with thermocouple 34 junctions by glass, and this glass comprises: soda-lime glass (Si20、Na20, Ca0), potash glass (K20、Ca0、Si02) or borate glass (Si02、B203) etc.
In the present invention, adopt the thermocouple sealing with compensating wire of glass-encapsulated to be better than resin glue product, and 150 DEG C of the environment for use temperature ranges of glass-encapsulated product are promoted to 600 DEG C; In addition, increase compensating wire governor motion, can lengthen as required or shorten compensating wire, to reduce to measure the error of temperature and actual work temperature.
The embodiment of the present invention provides the above; it is only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (4)
1. an adjustable-length compensating wire formula glass-encapsulated thermocouple, is characterized in that, comprising:
Thermocouple (34), is arranged with insulation protective jacket (38) outward; By jam nut (36) and lead-in wire (32)Connect, and junction is arranged with stainless steel interface (35);
Spring (33), be located at lead-in wire (32) with stainless steel interface (35) link, lead-in wire (32)The other end is connected with wiring fork (31);
Deposit line wheel (39), be arranged on lead-in wire (32) one end away from stainless steel interface (35), can rotateAxle (40) rotates, and two patch cords enter from the incoming line of depositing line wheel (39), deposit respectively around first aroundIn wire casing (41) and the second winding slot (42), and derive from the line outlet of depositing line wheel (39);
Rotating shaft (40) is provided with torsion spring, in the time that wiring fork (31) is derived from depositing the line outlet of line wheel (39),Torsion spring is tightened; After the external force deriving disappears, wiring fork (31) is regained and is deposited line wheel under torsion spring active force(39)；
Rotating shaft (40) is provided with retaining mechanism, and at locking state, wiring fork (31) can not derive or regain;
Between stainless steel interface (35) and lead-in wire (32), adopt glass capsulation; Jam nut (36) with drawLine (32) junction adopts glass capsulation; Jam nut (36) adopts glass with thermocouple (34) junctionGlass sealing.
2. adjustable-length compensating wire formula glass-encapsulated thermocouple according to claim 1, its feature existsIn, described retaining mechanism is draw-in groove and buckle structure.
3. adjustable-length compensating wire formula glass-encapsulated thermocouple according to claim 1, its feature existsIn, also comprise cushion (37), be arranged between thermocouple (34) and insulation protective jacket (38).
4. adjustable-length compensating wire formula glass-encapsulated thermocouple according to claim 1, its feature existsIn, glass capsulation comprises: soda-lime glass, potash glass or borate glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517881.XA CN103604519B (en) | 2013-10-28 | 2013-10-28 | A kind of compensating wire formula structural glass encapsulation thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517881.XA CN103604519B (en) | 2013-10-28 | 2013-10-28 | A kind of compensating wire formula structural glass encapsulation thermocouple |
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| Publication Number | Publication Date |
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| CN103604519A CN103604519A (en) | 2014-02-26 |
| CN103604519B true CN103604519B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310517881.XA Active CN103604519B (en) | 2013-10-28 | 2013-10-28 | A kind of compensating wire formula structural glass encapsulation thermocouple |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072221U (en) * | 1990-05-18 | 1991-02-27 | 浙江省鄞县热电偶厂 | Spring-pressing fix type thermocouple |
| CN2600800Y (en) * | 2003-01-15 | 2004-01-21 | 丁锡端 | Bush temp. measuring miniature type armoured thermal resistance |
| CN101614598A (en) * | 2008-06-27 | 2009-12-30 | 新奥科技发展有限公司 | A kind of thermocouple assembly that is used for measuring underground gasification temperature |
| CN201622133U (en) * | 2010-04-09 | 2010-11-03 | 浙江伦特机电有限公司 | Magnetic force surface temperature sensor |
| CN101942990A (en) * | 2009-07-10 | 2011-01-12 | 新奥科技发展有限公司 | On-line underground temperature measurement system |
| CN202255664U (en) * | 2011-09-23 | 2012-05-30 | 重庆迪洋仪表有限责任公司 | Aviation flexible wire thermocouple |
| CN202720070U (en) * | 2012-07-27 | 2013-02-06 | 肇庆爱晟电子科技有限公司 | High-stability and rapid NTC temperature sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120011500A (en) * | 2010-07-29 | 2012-02-08 | 현대제철 주식회사 | Thermo-couple inserting device for measuring surface temperature of slab |
-
2013
- 2013-10-28 CN CN201310517881.XA patent/CN103604519B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072221U (en) * | 1990-05-18 | 1991-02-27 | 浙江省鄞县热电偶厂 | Spring-pressing fix type thermocouple |
| CN2600800Y (en) * | 2003-01-15 | 2004-01-21 | 丁锡端 | Bush temp. measuring miniature type armoured thermal resistance |
| CN101614598A (en) * | 2008-06-27 | 2009-12-30 | 新奥科技发展有限公司 | A kind of thermocouple assembly that is used for measuring underground gasification temperature |
| CN101942990A (en) * | 2009-07-10 | 2011-01-12 | 新奥科技发展有限公司 | On-line underground temperature measurement system |
| CN201622133U (en) * | 2010-04-09 | 2010-11-03 | 浙江伦特机电有限公司 | Magnetic force surface temperature sensor |
| CN202255664U (en) * | 2011-09-23 | 2012-05-30 | 重庆迪洋仪表有限责任公司 | Aviation flexible wire thermocouple |
| CN202720070U (en) * | 2012-07-27 | 2013-02-06 | 肇庆爱晟电子科技有限公司 | High-stability and rapid NTC temperature sensor |
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| CN103604519A (en) | 2014-02-26 |
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Effective date of registration: 20200115 Address after: 239300 east side of South jingsan Road, Weiyi Road, Tianchang Economic Development Zone, Chuzhou City, Anhui Province Patentee after: Lande Energy Technology Co., Ltd Address before: 239300 No. 586 New River North Road, Chuzhou, Anhui, Tianchang Patentee before: Anhui Land Group Co., Ltd. |