CN202182773U - Explosionproof type temperature sensor - Google Patents
Explosionproof type temperature sensor Download PDFInfo
- Publication number
- CN202182773U CN202182773U CN2011203095486U CN201120309548U CN202182773U CN 202182773 U CN202182773 U CN 202182773U CN 2011203095486 U CN2011203095486 U CN 2011203095486U CN 201120309548 U CN201120309548 U CN 201120309548U CN 202182773 U CN202182773 U CN 202182773U
- Authority
- CN
- China
- Prior art keywords
- thermal resistance
- joint
- cutting ferrule
- thermopair
- thermocouple
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
An explosionproof type temperature sensor comprises a thermocouple or a thermal resistor, wherein the upper end of the thermocouple or the thermal resistor is internally provided with an explosionproof connection box of a binding post by a detachable sealing assembly, and a lead wire of the thermocouple or the cold end of the thermal resistor is connected with the binding post. The detachable sealing assembly comprises a joint and a screw cap, wherein the lower end of the joint is provided with an external-thread conical sleeve chuck, the screw cap is matched with the external-thread conical sleeve chuck, the inner diameter of the external-thread conical sleeve chuck is matched with the outer diameter of the thermocouple or the thermal resistor, the upper end of the joint is in threaded connection with the explosionproof connection box, the cold end of the thermocouple or the thermal resistor penetrates through the joint, and is fixed with the external-thread conical sleeve chuck in a sealing manner by screwing the screw cap. By adopting the detachable sealing assembly, the detachable connection of a temperature detecting element and the explosionproof connection box can be realized, and once the temperature detecting element is damaged, only the temperature detecting element needs to be changed, and the connection box does not need to be changed together.
Description
Technical field
The utility model relates to a kind of temperature sensor, relates in particular to a kind of flame-proof type temperature sensor that is applicable to explosive gas atmosphere.
Background technology
Existing flame-proof type temperature sensor, its temperature element (thermopair or thermal resistance) adopts welding, splicing or cutting ferrule to fix with the lower interface of terminal box or terminal box.When temperature element damaged, that adopts welding, bonding mode must change terminal box together, and adopted cutting ferrule to fix, because after tightening cutting ferrule, can not recover after the cutting ferrule distortion, promptly can not reuse, and had increased user's use cost.
Summary of the invention
The utility model technical matters to be solved is: the flame-proof type temperature sensor that provide a kind of and change conveniently, cost is low.
The technical scheme that the utility model adopted is: a kind of flame-proof type temperature sensor; Comprise thermopair or thermal resistance; The upper end of said thermopair or thermal resistance is provided with on the explosion-proof connection box of connection terminal in being fixed on through the removable seal assembly, and the lead-in wire of said thermopair or thermal resistance cold junction is connected with connection terminal.
The further technical scheme of the utility model is: said removable seal assembly comprises that the lower end is provided with the joint of external thread taper cutting ferrule and the nut that cooperates with external thread taper cutting ferrule; The internal diameter of said external thread taper cutting ferrule and the external diameter of thermopair or thermal resistance coupling; The interface of said upper end of joint and explosion-proof connection box is threaded; The cold junction of said thermopair or thermal resistance passes joint, through tightening nuts and external thread taper cutting ferrule sealing and fixing.For increasing external thread taper cutting ferrule elasticity, make reinstatement in loosen nut, said external thread taper cutting ferrule has some groovings.Thermopair or thermal resistance adopt armoured thermocouple or armoured thermal resistance usually.
The beneficial effect of the utility model: 1, adopt the removable seal assembly; Can realize that temperature element (armoured thermocouple or armoured thermal resistance) and explosion-proof connection box removably connect,, only need to change temperature element in case temperature element damages; Do not need to change, practice thrift cost together with terminal box.2, adopt threaded connector, it is convenient to change.3, adopt the taper cutting ferrule of band grooving, in the time of in temperature element penetrates the taper cutting ferrule, check nut can make the distortion of taper cutting ferrule, thereby fix temperature element; When loosen nut, the taper cutting ferrule can restore to the original state again, can temperature element be extracted out, can reuse.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Description of drawings
Fig. 1 is the utility model embodiment one-piece construction synoptic diagram.
Fig. 2 is Fig. 1 center tap structure for amplifying synoptic diagram.
Embodiment
Embodiment illustrated in fig. 1, comprise armoured thermocouple or armoured thermal resistance 1, removable seal assembly and in be provided with the explosion-proof connection box 5 of connection terminal 4.Said removable seal assembly comprises that the lower end is provided with the joint 3 of external thread taper cutting ferrule 31 and the nut 2 that cooperates with external thread taper cutting ferrule 31; The external diameter coupling of the internal diameter of external thread taper cutting ferrule 31 and thermopair or thermal resistance 1, external thread taper cutting ferrule 31 have some groovings (not marking among the figure).The interface of joint 3 upper ends and explosion-proof connection box 5 is threaded, and the cold junction of thermopair or thermal resistance 1 passes joint 3, and through tightening nuts 2 and external thread taper cutting ferrule 31 sealing and fixing, the lead-in wire of thermopair or thermal resistance 1 cold junction is connected with connection terminal 4.
During installation, armoured thermocouple or armoured thermal resistance are passed joint and external thread taper cutting ferrule, check nut, armoured thermocouple or armoured thermal resistance are fixed in the distortion of taper cutting ferrule; Upper end of joint is tightened on explosion-proof connection box or the explosion-proof connection box hickey, and the lead-in wire of thermopair or thermal resistance cold junction is connected with connection terminal.Otherwise, desirable lower sub and armoured thermocouple or armoured thermal resistance.
Claims (4)
1. flame-proof type temperature sensor; Comprise thermopair or thermal resistance; It is characterized in that: be provided with in the upper end of said thermopair or thermal resistance (1) is fixed on through the removable seal assembly on the explosion-proof connection box (5) of connection terminal (4), the lead-in wire of said thermopair or thermal resistance (1) cold junction is connected with connection terminal (4).
2. flame-proof type temperature sensor according to claim 1; It is characterized in that: said removable seal assembly comprises that the lower end is provided with the joint (3) of external thread taper cutting ferrule (31) and the nut (2) that cooperates with external thread taper cutting ferrule (31); The external diameter coupling of the internal diameter of said external thread taper cutting ferrule (31) and thermopair or thermal resistance (1); Said joint (3) upper end is threaded with the interface of explosion-proof connection box (5); The cold junction of said thermopair or thermal resistance (1) passes joint (3), through tightening nuts (2) and external thread taper cutting ferrule (31) sealing and fixing.
3. flame-proof type temperature sensor according to claim 2 is characterized in that: said external thread taper cutting ferrule (31) has some groovings.
4. according to claim 1 or 2 or 3 described flame-proof type temperature sensors, it is characterized in that: said thermopair or thermal resistance (1) are armoured thermocouple or armoured thermal resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203095486U CN202182773U (en) | 2010-08-31 | 2011-08-24 | Explosionproof type temperature sensor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020511559 | 2010-08-31 | ||
| CN201020511559.8 | 2010-08-31 | ||
| CN2011203095486U CN202182773U (en) | 2010-08-31 | 2011-08-24 | Explosionproof type temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202182773U true CN202182773U (en) | 2012-04-04 |
Family
ID=46175806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203095486U Expired - Fee Related CN202182773U (en) | 2010-08-31 | 2011-08-24 | Explosionproof type temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202182773U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818647A (en) * | 2012-08-13 | 2012-12-12 | 西安近代化学研究所 | Quick-response thermocouple resistant to transient-state high pressure of explosion field |
| CN103592039A (en) * | 2013-11-11 | 2014-02-19 | 江苏裕兴电器有限公司 | High-pressure detachable and replaceable type temperature sensor device |
| CN106500859A (en) * | 2016-11-22 | 2017-03-15 | 新奥泛能网络科技股份有限公司 | A kind of digital thermometer and system for detecting temperature |
| RU2660229C1 (en) * | 2015-10-26 | 2018-07-05 | Синьсин Дактайл Айен Пайпс Ко., Лтд. | Flared pipes connection with fastening structure |
-
2011
- 2011-08-24 CN CN2011203095486U patent/CN202182773U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818647A (en) * | 2012-08-13 | 2012-12-12 | 西安近代化学研究所 | Quick-response thermocouple resistant to transient-state high pressure of explosion field |
| CN103592039A (en) * | 2013-11-11 | 2014-02-19 | 江苏裕兴电器有限公司 | High-pressure detachable and replaceable type temperature sensor device |
| RU2660229C1 (en) * | 2015-10-26 | 2018-07-05 | Синьсин Дактайл Айен Пайпс Ко., Лтд. | Flared pipes connection with fastening structure |
| CN106500859A (en) * | 2016-11-22 | 2017-03-15 | 新奥泛能网络科技股份有限公司 | A kind of digital thermometer and system for detecting temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20180824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |