CN101806636A - Sealed leakage-resistant thermal couple (resistor) - Google Patents

Sealed leakage-resistant thermal couple (resistor) Download PDF

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Publication number
CN101806636A
CN101806636A CN200910067859A CN200910067859A CN101806636A CN 101806636 A CN101806636 A CN 101806636A CN 200910067859 A CN200910067859 A CN 200910067859A CN 200910067859 A CN200910067859 A CN 200910067859A CN 101806636 A CN101806636 A CN 101806636A
Authority
CN
China
Prior art keywords
resistance
protective casing
temperature
sealing
leakage
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.)
Pending
Application number
CN200910067859A
Other languages
Chinese (zh)
Inventor
刘汉杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN ZHONG HUAN TEMPERATURE INSTRUMENT CO Ltd
Original Assignee
TIANJIN ZHONG HUAN TEMPERATURE INSTRUMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN ZHONG HUAN TEMPERATURE INSTRUMENT CO Ltd filed Critical TIANJIN ZHONG HUAN TEMPERATURE INSTRUMENT CO Ltd
Priority to CN200910067859A priority Critical patent/CN101806636A/en
Publication of CN101806636A publication Critical patent/CN101806636A/en
Pending legal-status Critical Current

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Abstract

The invention belongs to a sealed leakage-resistant thermal couple (resistor), which consists of a junction box, a protection sleeve and a temperature measuring element. The protection sleeve consists of an upper protection sleeve and a lower protection sleeve which are arranged coaxially up and down. The upper end of the upper protection sleeve is fixedly arranged on the junction box; the temperature measuring element is coaxially arranged in the protection sleeve and the upper end of the temperature measuring element is fixedly arranged on the junction box. A leakage-resistant sealing base is fixedly arranged between the upper protection sleeve and the lower protection sleeve coaxially. The upper protection sleeve is coaxially arranged at the upper end of the leakage-resistant sealing base through a movable nut; the lower protection sleeve is fixedly arranged at the lower end of the leakage-resistant sealing base coaxially; and a pressing leakage-resistant device for the temperature measuring element is arranged on the leakage-resistant sealing base. The sealed leakage-resistant thermal couple (resistor) has the advantages of simple structure, scientific and reasonable design, adjustable length of the temperature measuring element of the thermal couple (resistor), separate replacement of the temperature measuring element, higher sealing safety, convenient operation, and long service life.

Description

Sealing resistance leakage formula thermopair (resistance)
Technical field
The invention belongs to the thermopair (resistance) in the temperature sensor field, especially a kind of sealing resistance leakage formula thermopair (resistance).
Background technology
Thermopair (resistance) is one of temperature sensor of using always, the structure of the armoured thermocouple (resistance) that generally uses in the industry spot mainly is made of terminal box, protective casing and temperature element at present, at the inner temperature element of armoured thermocouple (resistance) is the measured place of directly guiding to the protective casing front end from terminal box, there are the following problems for this traditional structure: 1. inside do not seal the resistance neglected loading put, in case sleeve pipe and temperature element are damaged, high temperature or strong corrosive medium can directly enter in the terminal box, have great potential safety hazard; 2. the length of measuring sensor can not be adjusted, in case when design length taking place not being inconsistent with physical length, can't adjust, causes the measured temperature station temperature generation error required with reality; 3. thermopair (resistance) is in case be damaged, can only integral replacing, and cause the maintenance maintenance cost too high.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of sealing resistance leakage formula thermopair (resistance) is provided, the temperature element adjustable length of this thermopair (resistance), and can change separately, sealingly secure is higher, and is easy to operate, long service life.
The present invention solves its technical matters and is achieved through the following technical solutions:
A kind of sealing resistance leakage formula thermopair (resistance); by terminal box; protective casing and temperature element constitute; protective casing is by on last protective casing and the following protective casing; coaxial installation forms down; last protective casing upper end is packed on the terminal box; coaxial the placing in the protective casing and on it of temperature element is packed on the terminal box; wherein coaxially between last protective casing and following protective casing install a resistance and leak sealing socket; this resistance is leaked the upper end of sealing socket by the coaxial protective casing of installing of an active locknut; the lower end of this resistance leakage sealing socket is coaxial to install with following protective casing, leaks the resistance neglected loading that compresses that temperature element is installed on sealing socket in this resistance and puts.
And described resistance is leaked sealing socket and is packed on the joint flange.
And, describedly compressing the resistance neglected loading and put by hold-down bolt, pressure pad and graphite grazing pad and constitute, temperature element passes the axle center of hold-down bolt, pressure pad and graphite grazing pad, and hold-down bolt leaks the sealing socket engagement with resistance and also compresses pressure pad and graphite grazing pad.
And the upper end of described temperature element in last protective casing installs a high temperature joint, is filled with high-temp glue in this high temperature joint.
And, describedly between protective casing on the active locknut position and following protective casing, an O-ring seal is installed.
Advantage of the present invention and beneficial effect are:
1. the last protective casing lower end of this sealing resistance leakage formula thermopair (resistance) installs a resistance leakage sealing socket by an active locknut; following protective casing upper end is packed in resistance and leaks the sealing socket lower end; temperature element is put and is fixed on resistance and leaks on the sealing socket by compressing the resistance neglected loading; after this kind structure can prevent effectively that protective casing from damaging; measured medium is excessive, has improved the security of thermopair (resistance).
2. the upper end of this sealing resistance leakage formula thermopair (resistance) temperature element installs a high temperature joint, can high-temp glue in this high temperature joint, can effectively improve security, when temperature element damages, prevent that the deep-etching measured medium from entering terminal box inside by temperature element inside.
3. the present invention is simple in structure, and design science is reasonable, the temperature element adjustable length of thermopair (resistance), and can change separately, sealingly secure is higher, and is easy to operate, is long sealing resistance leakage formula thermopair (resistance) in a kind of serviceable life.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of sealing resistance leakage formula thermopair (resistance); by terminal box 1; protective casing and temperature element 10 constitute; protective casing is by on last protective casing 2 and the following protective casing 9; coaxial installation forms down; last protective casing upper end is packed on the terminal box; the connecting line 14 of temperature element is packed on the terminal box and places in the protective casing; install a joint flange 8 on the following protective casing; wherein coaxially between last protective casing and following protective casing install a resistance and leak sealing socket 7; this resistance is leaked the upper end of sealing socket by the active locknut 5 coaxial protective casings of installing; the lower end of this resistance leakage sealing socket is coaxial to install with following protective casing; leaking the resistance neglected loading that compresses that temperature element is installed on the sealing socket in this resistance puts; resistance leakage sealing socket can be made separately; also can make by joint flange center one; present embodiment resistance shown in the drawings is leaked sealing socket for making separately; following protective casing upper end is packed in resistance and leaks the sealing socket lower end; temperature element is put and is fixed on resistance and leaks on the sealing socket by compressing the resistance neglected loading; compressing the resistance neglected loading puts by hold-down bolt 13; pressure pad 12 and graphite grazing pad 11 constitute; temperature element passes hold-down bolt; the axle center of pressure pad and graphite grazing pad; hold-down bolt leaks the sealing socket engagement and compresses pressure pad and graphite grazing pad with resistance; the upper end of temperature element installs a high temperature joint 3; can high-temp glue 4 in this high temperature joint seals by O-ring seal 6 between last protective casing and the following protective casing.
The present invention when mounted; earlier flange is installed on the tested cylinder body, temperature element is installed on the protective casing according to the position that designs in advance, the connecting line with temperature element is connected on the terminal box then; the line position adjustment that goes out of terminal box is finished; screw active locknut, sealing resistance leakage formula thermopair (resistance) installs, in use; when temperature element damages; only need to go up protective casing and outward winding and be replaceable temperature element, time saving and energy saving, reduced the cost of maintenance maintenance.

Claims (5)

1. a sealing hinders leakage formula thermopair (resistance); by terminal box; protective casing and temperature element constitute; protective casing is by on last protective casing and the following protective casing; coaxial installation forms down; last protective casing upper end is packed on the terminal box; coaxial the placing in the protective casing and on it of temperature element is packed on the terminal box; it is characterized in that: coaxially between last protective casing and following protective casing install a resistance and leak sealing socket; this resistance is leaked the upper end of sealing socket by the coaxial protective casing of installing of an active locknut; the lower end of this resistance leakage sealing socket is coaxial to install with following protective casing, leaks the resistance neglected loading that compresses that temperature element is installed on sealing socket in this resistance and puts.
2. sealing resistance leakage formula thermopair (resistance) according to claim 1, it is characterized in that: described resistance is leaked sealing socket and is packed on the joint flange.
3. sealing resistance leakage formula thermopair (resistance) according to claim 1, it is characterized in that: describedly compress the resistance neglected loading and put by hold-down bolt, pressure pad and graphite grazing pad and constitute, temperature element passes the axle center of hold-down bolt, pressure pad and graphite grazing pad, and hold-down bolt leaks the sealing socket engagement and compresses pressure pad and graphite grazing pad with resistance.
4. sealing resistance leakage formula thermopair (resistance) according to claim 1, it is characterized in that: the upper end of described temperature element in last protective casing installs a high temperature joint, is filled with high-temp glue in this high temperature joint.
5. sealing according to claim 1 resistance leakage formula thermopair (resistance) is characterized in that: describedly between protective casing on the active locknut position and following protective casing an O-ring seal is installed.
CN200910067859A 2009-02-13 2009-02-13 Sealed leakage-resistant thermal couple (resistor) Pending CN101806636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910067859A CN101806636A (en) 2009-02-13 2009-02-13 Sealed leakage-resistant thermal couple (resistor)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910067859A CN101806636A (en) 2009-02-13 2009-02-13 Sealed leakage-resistant thermal couple (resistor)

Publications (1)

Publication Number Publication Date
CN101806636A true CN101806636A (en) 2010-08-18

Family

ID=42608527

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910067859A Pending CN101806636A (en) 2009-02-13 2009-02-13 Sealed leakage-resistant thermal couple (resistor)

Country Status (1)

Country Link
CN (1) CN101806636A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104568196A (en) * 2015-01-04 2015-04-29 安徽蓝德仪表有限公司 Platinum rhodium thermal coupler
CN105241567A (en) * 2015-09-30 2016-01-13 西安航天动力研究所 Gas temperature sensor and manufacturing method thereof
CN105527032A (en) * 2016-01-30 2016-04-27 淄博益源工程技术有限公司 Set bearing bush temperature measurement system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104568196A (en) * 2015-01-04 2015-04-29 安徽蓝德仪表有限公司 Platinum rhodium thermal coupler
CN104568196B (en) * 2015-01-04 2019-06-11 安徽蓝德仪表有限公司 A kind of platinum rhodium thermocouple
CN105241567A (en) * 2015-09-30 2016-01-13 西安航天动力研究所 Gas temperature sensor and manufacturing method thereof
CN105527032A (en) * 2016-01-30 2016-04-27 淄博益源工程技术有限公司 Set bearing bush temperature measurement system
CN105527032B (en) * 2016-01-30 2018-07-27 淄博益源工程技术有限公司 Unit bush temperature detecting system

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Open date: 20100818