CN201811803U - Thermocouple or thermistor with vertical-position adjustable thermometric element - Google Patents
Thermocouple or thermistor with vertical-position adjustable thermometric element Download PDFInfo
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- CN201811803U CN201811803U CN2010202985683U CN201020298568U CN201811803U CN 201811803 U CN201811803 U CN 201811803U CN 2010202985683 U CN2010202985683 U CN 2010202985683U CN 201020298568 U CN201020298568 U CN 201020298568U CN 201811803 U CN201811803 U CN 201811803U
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- protective casing
- temperature
- sensing element
- support pipe
- cutting ferrule
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Abstract
The utility model relates to a thermocouple or thermistor with a vertical-position adjustable thermometric element. The thermocouple or thermistor comprises a flange and a temperature sensing element, one end of the temperature sensing element extends into a protecting sleeve while the other end is connected with a junction box, an upper supporting pipe and a lower supporting pipe are sleeved on the temperature sensing element between the junction box and the flange, the upper supporting pipe is connected with the lower supporting pipe via a vertically adjustable union, the vertically adjustable union is provided with upper internal threads and lower internal threads which are opposite in direction, external threads of the upper supporting pipe and external threads of the lower supporting pipe are opposite in direction, the upper internal threads of the vertically adjustable union match with the external threads of the upper supporting pipe, and the lower internal threads of the vertically adjustable union match with the external threads of the lower supporting pipe. The vertical position of the temperature sensing element in the protecting sleeve can be adjusted conveniently through the vertically adjustable union, and the end of the temperature sensing element clings to the bottom of a blind hole in the protecting sleeve, so that thermal response hysteresis is reduced and measurement precision is increased.
Description
Technical field
The utility model relates to a kind of thermopair, relates in particular to occasionally thermal resistance of the thermoelectricity of being convenient to regulate the temperature element upper-lower position that a kind ofly reduces the thermal response hysteresis phenomenon, improve measuring accuracy.
Background technology
In essential industry production runes such as oil, chemical industry, metallurgy, electric power, measuring temperature with thermoelectric occasionally thermal resistance is the most general ways and means of contact type temperature sensor.Especially be in the chemical process of raw material with oil, coal, not only use generally, and consumption be very big.Particularly process high sulfur-bearing, high-acid crude oil, because the continuous variation of chemical analysis, thermometric requires more and more higher, and the thermometric environment is more and more abominable, to contact type temperature sensor thermoelectricity occasionally thermal resistance under the safe prerequisite of ensuring the quality of products, requirements at the higher level are proposed.Original thermoelectricity occasionally in the thermal resistance upper-lower position of temperature-sensing element in protective casing generally be difficult to regulate, the termination of temperature-sensing element be difficult to protective casing in blind hole at the bottom of be close to, so there is the thermal response hysteresis phenomenon, influence measuring accuracy.
Summary of the invention
The utility model mainly solve original thermoelectricity occasionally in the thermal resistance upper-lower position of temperature element in protective casing regulate the comparison difficulty, the termination of temperature element be difficult to protective casing in blind hole at the bottom of be close to, there is the thermal response hysteresis phenomenon, influences the technical matters of measuring accuracy; Provide a kind of simple in structure; can regulate the upper-lower position of temperature-sensing element in protective casing easily; the termination of guaranteeing temperature-sensing element can be close at the bottom of the blind hole in the protective casing; thereby reduce the thermal response hysteresis phenomenon, the thermoelectricity of being convenient to regulate the temperature element upper-lower position that improves measuring accuracy is thermal resistance occasionally.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model comprises that an end is inserted in the blind hole of protective casing; the temperature-sensing element that the other end links to each other with terminal box; protective casing is installed on the flange; be arranged with support column on the temperature-sensing element between terminal box and the flange; described support column comprises upper support pipe and lower support pipe; upper support pipe and lower support pipe link to each other by adjustable flexible joint up and down; adjustable up and down flexible joint is provided with opposite upper internal threaded of direction and lower internal thread; it is opposite that the external thread of the external thread of upper support pipe and lower support pipe is provided with direction; the external thread of the upper internal threaded of adjustable flexible joint and upper support pipe is complementary up and down, and the external thread of the lower internal thread of adjustable flexible joint and lower support pipe is complementary up and down.By adjustable flexible joint about the rotation; upper and lower support column is risen or decline; thereby can regulate the upper-lower position of temperature-sensing element in protective casing easily; be convenient to make the termination of temperature-sensing element to be close at the bottom of the interior blind hole of protective casing; thereby reduce the thermal response hysteresis phenomenon, improve measuring accuracy.
As preferably; the inwall of the perforate end of described protective casing is provided with a shoulder; be provided with the two cutting ferrules of a leak stopping between the inwall of the perforate end of protective casing and the temperature-sensing element; the preceding cutting ferrule of the two cutting ferrules of leak stopping is sealed between the outer rim and temperature-sensing element of shoulder, and the back cutting ferrule of the two cutting ferrules of leak stopping is sealed between the inwall and temperature-sensing element of perforate end of protective casing.The two cutting ferrules of leak stopping play two-layer sealing function to the perforate end of protective casing, prevent that medium from leaking outside.Under the special condition of severe of operating mode, even production period protective casing cracking or fracture, measured medium can be toward external leakage yet, reaches the effect of not only antidetonation but also leak stopping, the security performance height.
As preferably, described before the bottom surface diameter of cutting ferrule less than the cylindrical diameter of back cutting ferrule, gapped between the bottom surface of preceding cutting ferrule and back cutting ferrule cylindrical.The perforate end of protective casing and preceding cutting ferrule, back cutting ferrule are surrounded by a cavity, play certain buffer action, weaken the impulse force that medium leaks, and improve sealing property.
As preferably; the length of the blind hole in the described protective casing is 300～1000 millimeters; the concentricity of the blind hole in the protective casing is 0.25%～0.45%, and the described outer wall that is positioned at the protective casing of flange below is provided with corrosion-resistant, the anti abrasive protective seam that one deck is handled through metal surface composite ceramics modification.Temperature-sensing element adopts the armouring element.For example, the length of blind hole is in the time of 500 millimeters, and concentricity can accomplish 0.25%; The length of blind hole is in the time of 750 millimeters, and concentricity can accomplish 0.45%.Protective casing adopts whole rod iron precision die forging forming, highly difficult dark blind hole boring.Because Forging Technology optimized rod iron grain density performance, both improved protective casing just, intensity, make heatproof, corrosion resistant performance also along with raising again.
The beneficial effects of the utility model are: can regulate the upper-lower position of temperature-sensing element in protective casing easily by adjustable flexible joint up and down, the termination of temperature-sensing element is close at the bottom of the blind hole in the protective casing, reduce the thermal response hysteresis phenomenon, improve measuring accuracy.Dual leak stopping structure by the two cutting ferrules of leak stopping simultaneously, even cracking or fracture take place the production period protective casing, measured medium can be toward external leakage yet, reaches the effect of not only antidetonation but also leak stopping, security performance improves.
Description of drawings
Fig. 1 is a kind of sectional structure synoptic diagram of the present utility model.
Fig. 2 is the cross-sectional schematic of a kind of syndeton of adjustable flexible joint and upper support pipe, lower support pipe up and down in the utility model.
Fig. 3 is the structure for amplifying synoptic diagram of A among Fig. 1.
1. protective casings among the figure, 2. terminal box, 3. temperature-sensing element, 4. flange, 5. blind hole; 6. upper support pipe, 7. lower support pipe, 8. adjustable flexible joint, 9. upper internal threaded, 10. lower internal thread up and down; 11. shoulder, the two cutting ferrules of 12. leak stopping, 13. preceding cutting ferrules, 14. back cutting ferrules.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment 1: a kind of novelty of present embodiment is sweating heat galvanic couple or thermal resistance not; as shown in Figure 1 and Figure 2; comprise that an end is inserted in the blind hole 5 of protective casing 1 and with the hole of blind hole at the bottom of be close to, temperature-sensing element 3 that the other end links to each other with terminal box 2; protective casing 1 is installed on the flange 4; be with upper support pipe 6 and lower support pipe 7 on the temperature-sensing element 3 between terminal box 2 and the flange 4, temperature-sensing element adopts the armouring element.The inwall of the perforate end of protective casing has a shoulder 11; as shown in Figure 3; be plugged with the two cutting ferrules 12 of a leak stopping between the inwall of the perforate end of protective casing and the temperature-sensing element 3; the preceding cutting ferrule 13 of the two cutting ferrules 12 of leak stopping is sealed between the outer rim and temperature-sensing element 3 of shoulder 11; the back cutting ferrule 14 of the two cutting ferrules 12 of leak stopping is sealed between the inwall and temperature-sensing element 3 of perforate end of protective casing; gapped between preceding cutting ferrule 13 and the back cutting ferrule 14; the diameter on the last plane of preceding cutting ferrule 13 plays dual plugging effect less than the lower plane diameter of back cutting ferrule 14.The length of the blind hole 5 in the protective casing is 750 millimeters, and the concentricity of blind hole 5 is 0.45%.Be positioned on the outer wall of protective casing 1 of flange 4 belows and scribble corrosion-resistant, the anti abrasive protective seam that one deck is handled through metal surface composite ceramics modification.The main process of this technology is earlier aluminum melt heat to be applied to flange bottom and protective casing surface as tie coat; to be sprayed at product surface equably near nano level alundum (Al powder again; the final carbon dioxide laser scanning sintering that adopts makes coating and parent realize metallurgical binding.Can select the protective seam of different components, method at the requirement of measured medium, satisfy needs of production.
The utility model can be regulated the upper-lower position of temperature-sensing element in protective casing easily by adjustable flexible joint up and down, and the termination of temperature-sensing element is close at the bottom of the blind hole in the protective casing, reduces the thermal response hysteresis phenomenon, improves measuring accuracy.Dual leak stopping structure by the two cutting ferrules of leak stopping simultaneously, even cracking or fracture take place the production period protective casing, measured medium can be toward external leakage yet, reaches the effect of not only antidetonation but also leak stopping, security performance improves.
Claims (4)
1. a thermoelectricity of being convenient to regulate temperature element upper-lower position thermal resistance occasionally; comprise that an end is inserted in the blind hole of protective casing (1) (5); the temperature-sensing element (3) that the other end links to each other with terminal box (2); protective casing (1) is installed on the flange (4); be arranged with support column on the temperature-sensing element (3) between terminal box (2) and the flange (4); it is characterized in that described support column comprises upper support pipe (6) and lower support pipe (7); upper support pipe (6) and lower support pipe (7) link to each other by adjustable flexible joint (8) up and down; adjustable up and down flexible joint (8) is provided with opposite upper internal threaded of direction (9) and lower internal thread (10); it is opposite that the external thread of the external thread of upper support pipe (6) and lower support pipe (7) is provided with direction; the upper internal threaded (9) of adjustable up and down flexible joint (8) and the external thread of upper support pipe (6) are complementary, and the lower internal thread (10) of adjustable up and down flexible joint (8) and the external thread of lower support pipe (7) are complementary.
2. the thermoelectricity of being convenient to regulate the temperature element upper-lower position according to claim 1 is thermal resistance occasionally; the inwall that it is characterized in that the perforate end of described protective casing (1) is provided with a shoulder (11); be provided with the two cutting ferrules (12) of a leak stopping between the inwall of the perforate end of protective casing (1) and the temperature-sensing element (3); the preceding cutting ferrule (13) of the two cutting ferrules (12) of leak stopping is sealed between the outer rim and temperature-sensing element (3) of shoulder (11), and the back cutting ferrule (14) of the two cutting ferrules (12) of leak stopping is sealed between the inwall and temperature-sensing element (3) of perforate end of protective casing (1).
3. the thermoelectricity of being convenient to regulate the temperature element upper-lower position according to claim 2 is thermal resistance occasionally, it is characterized in that described preceding cutting ferrule (13) and afterwards gapped between the cutting ferrule (14), the diameter on the last plane of preceding cutting ferrule (13) is less than the lower plane diameter of back cutting ferrule (14).
4. according to claim 1 or the 2 or 3 described thermoelectricity of being convenient to regulate temperature element upper-lower position thermal resistance occasionally; the length that it is characterized in that the blind hole (5) in the described protective casing (1) is 300～1000 millimeters; the concentricity of the blind hole (5) in the protective casing (1) is 0.25%～0.45%, and the described outer wall that is positioned at the protective casing (1) of flange (4) below is provided with corrosion-resistant, the anti abrasive protective seam that one deck is handled through metal surface composite ceramics modification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202985683U CN201811803U (en) | 2010-08-20 | 2010-08-20 | Thermocouple or thermistor with vertical-position adjustable thermometric element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202985683U CN201811803U (en) | 2010-08-20 | 2010-08-20 | Thermocouple or thermistor with vertical-position adjustable thermometric element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201811803U true CN201811803U (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202985683U Expired - Fee Related CN201811803U (en) | 2010-08-20 | 2010-08-20 | Thermocouple or thermistor with vertical-position adjustable thermometric element |
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| Country | Link |
|---|---|
| CN (1) | CN201811803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644164A (en) * | 2016-12-06 | 2017-05-10 | 无锡优耐特净化装备有限公司 | Temperature transmitter |
-
2010
- 2010-08-20 CN CN2010202985683U patent/CN201811803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644164A (en) * | 2016-12-06 | 2017-05-10 | 无锡优耐特净化装备有限公司 | Temperature transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Intime Auto-system Co., Ltd. Assignor: Ding Xiduan|Ding Gang Contract record no.: 2013330000095 Denomination of utility model: Thermocouple or thermistor with vertical-position adjustable thermometric element Granted publication date: 20110427 License type: Exclusive License Record date: 20130424 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fuyang the Fuchun River instrument factory of Hangzhou Assignor: Ding Xiduan|Ding Gang Contract record no.: 2017330000033 Denomination of utility model: Thermocouple or thermistor with vertical-position adjustable thermometric element Granted publication date: 20110427 License type: Common License Record date: 20170401 |
|
| EM01 | Change of recordation of patent licensing contract | ||
| EM01 | Change of recordation of patent licensing contract |
Change date: 20170331 Contract record no.: 2013330000095 License type after: General permission License type before: Exclusive license |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20170820 |