CN203083725U - An ultra-short temperature measuring device integrating a bimetal with a platinum thermal resistor - Google Patents
An ultra-short temperature measuring device integrating a bimetal with a platinum thermal resistor Download PDFInfo
- Publication number
- CN203083725U CN203083725U CN 201320019603 CN201320019603U CN203083725U CN 203083725 U CN203083725 U CN 203083725U CN 201320019603 CN201320019603 CN 201320019603 CN 201320019603 U CN201320019603 U CN 201320019603U CN 203083725 U CN203083725 U CN 203083725U
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- Prior art keywords
- protection tube
- platinum resistance
- protecting tube
- resistance thermometer
- thermometer sensor
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Abstract
The utility model discloses an ultra-short temperature measuring device integrating a bimetal with a platinum thermal resistor. The ultra-short temperature measuring device is suitable for occasions requiring temperature measurement with ultra-short inserting depth and is capable of displaying measured temperature on site and transmitting signals to a remote monitor. The integrated temperature measuring device comprises a bimetallic thermometer formed by a meter head, a connector, an inner protecting tube, an outer protecting tube, and a bimetallic wire. The meter head is threadedly connected with the top of the connector. A three-way is threadedly connected with the bottom of the connector, the top of a cold end, and a junction box. The bottom of the cold end is connected with the top of the outer protecting tube. The top of the inner protecting tube is connected with the inner wall of the bottom of the connector. The inner protecting tube passes through the three-way connector and the cold end and is extended to the bottom of the outer protecting tube. A rotating shaft is disposed on the center of the inner protecting tube. The top of the rotating shaft is connected with meter head, while the bottom of the rotating shaft is welded on the top of the bimetallic wire. The bottom of the bimetallic wire is fixedly connected with the bottom of the inner protecting tube. The bottom of the inner protecting tube is enclosed. A platinum thermal resistor is disposed on the bottom of the outer protecting tube. The bottom of the outer protecting tube is enclosed. The connecting wire of the platinum thermal resistor passes through the outer protecting tube and the cold end and is connected with the junction box through the three-way connector.
Description
Technical field
The utility model belongs to surveying instrument instrument field, is specifically related to the integrated thermometric device of a kind of ultrashort type thermometal platinum resistance thermometer sensor,, by the structure of particular design, is fit to measure slotting dark relatively shorter occasion.
Background technology
Bimetallic system cell is to utilize the principle work that degrees of expansion is different when temperature change of two kinds of different metals.
The main element of industrial bimetallic system cell is the multilayered metal film that two or more metal film stacks of usefulness force together and form.For improving sensitivity of thermometry, usually sheet metal is made the helical coil shape.When the temperature change of multilayered metal film, each layer expansion of metal or amount of contraction do not wait, and make helical coil roll or unclamp.The other end links to each other with a pointer that can freely rotate because an end of helical coil is fixed, and therefore, when bimetallic strip was experienced temperature variation, pointer can indicate temperature on a circular graduated scale.The temperature-measuring range of this instrument is 200～650 ℃, and permissible error is about 1% of scale two journeys.The purposes of this thermometer and bar-shaped glass liquid thermometer is similar, but can use under the higher condition of requirement of mechanical strength.
Platinum resistance thermometer sensor, can be realized remote transmission as high-precision temperature element, therefore is widely used.In conjunction with the integrated thermometric device of thermometal and platinum resistance thermometer sensor, characteristics, can see observed temperature at the scene, directly perceived; Can be transferred to the remote monitoring chamber again, realize the strange land temperature detection monitoring, be to use the temperature instrumentation of popularizing at present.
But, temperature measuring equipment of the prior art, perhaps platinum resistance thermometer sensor, is in bimetallic element, perhaps platinum resistance thermometer sensor, is arranged on the eccentric position of bimetallic element, perhaps bimetallic element is arranged in the platinum resistance thermometer sensor,, thermometal when rotation and the interference of platinum resistance thermometer sensor, lead-in wire, influences measuring accuracy.
Therefore the present integrated thermometric device of thermometal platinum resistance thermometer sensor, is being measured slotting dark relatively shorter occasion, because thermometal temperature-sensing element length and position limit that platinum resistance thermometer sensor, is put, it is inaccurate to insert the too short deeply thermal resistance thermometric that causes, and influences precision.
The utility model content
The purpose of this utility model provides the integrated thermometric device of a kind of thermometal platinum resistance thermometer sensor,, is inserting under the dark short situation, and thermometal and platinum resistance thermometer sensor, can both guarantee measuring accuracy.
The technical solution of the utility model is as follows:
The integrated thermometric device of ultrashort type thermometal platinum resistance thermometer sensor, comprises by gauge outfit, joint, the bimetal type thermometer that interior protection tube, composite wire are formed, and threeway, terminal box, cold junction, platinum resistance thermometer sensor,, outer protection tube, coupling bolt, wherein:
Gauge outfit is threaded with joint top, and joint is a hollow structure, and threeway is threaded with the top and the terminal box of joint bottom, cold junction respectively; The bottom of cold junction is welded to connect with outer protection tube top, and the lower circumference of cold junction is installed coupling bolt, and cold junction is a hollow structure; The inwall of the top of interior protection tube and joint bottom is welded to connect, interior protection tube runs through the extremely bottom of outer protection tube of threeway, cold junction, the center of interior protection tube is provided with a rotating shaft, the top of rotating shaft is connected with gauge outfit, the bottom of rotating shaft and the welding of composite wire top, fixedly connected with the bottom of interior protection tube in the composite wire bottom, the bottom sealing of interior protection tube; The bottom of outer protection tube is provided with platinum resistance thermometer sensor,, the bottom sealing of outer protection tube, and the platinum resistance thermometer sensor, connecting line passes outer protection tube, cold junction, is connected in terminal box through threeway.
Further, described outer protection tube is welded to connect after inserting a section of cold junction lower inner wall, guarantees the intensity and the concentricity of welding.
Further, the bottom of described composite wire bottom and interior protection tube is welded to connect.
Further, described platinum resistance thermometer sensor, is positioned at the below of protection tube.
The beneficial effects of the utility model:
Thermo bimetal's helical element is in interior protection tube inside, when avoiding rotating and the platinum resistance thermometer sensor, lead-in wire interfere, influence the thermometal measuring accuracy; The protection tube bottom guaranteed the platinum resistance measuring accuracy in the platinum resistance thermometer sensor, element was positioned over.Inserting under the dark short situation, thermometal and platinum resistance thermometer sensor, can both guarantee measuring accuracy.
Description of drawings
Accompanying drawing is a kind of example structure figure of the utility model.
Among the figure:
1, gauge outfit, 2, joint, 3, interior protection tube, 4, threeway, 5, terminal box, 6, cold junction, 7, coupling bolt, 8, composite wire, 9, outer protection tube, 10, platinum resistance thermometer sensor.
Embodiment
The utility model is described in detail in conjunction with the accompanying drawings.
Shown in accompanying drawing, the integrated thermometric device of ultrashort type thermometal platinum resistance thermometer sensor, comprises by gauge outfit 1, joint 2, the bimetal type thermometer that interior protection tube 3, composite wire 8 are formed; threeway 4, terminal box 5, cold junction 6; platinum resistance thermometer sensor, 10, outer protection tube 9, coupling bolt 7
Wherein: gauge outfit 1 is threaded with joint 2 tops, and joint 2 is a hollow structure, and threeway 4 is threaded with the top and the terminal box 5 of joint 2 bottoms, cold junction 6 respectively;
The bottom of cold junction 6 is welded to connect with outer protection tube 9 tops, and the lower circumference of cold junction 6 is installed coupling bolt 7, and cold junction 6 is a hollow structure.Be welded to connect after one section of described outer protection tube 9 insertion cold junctions 6 lower inner wall, guarantee the intensity and the concentricity of welding.
The inwall of the top of interior protection tube 3 and joint 2 bottoms is welded to connect, this connection, and intensity is higher, and is not yielding, can guarantee concentricity.
The bottom of outer protection tube 9 is provided with platinum resistance thermometer sensor, 10, and the platinum resistance thermometer sensor, element protection is got up in the bottom sealing of outer protection tube 9, by outer protection tube platinum resistance thermometer sensor, 10 and measuring media is kept apart.Platinum resistance thermometer sensor, 10 connecting lines pass outer protection tube 9, cold junction 6, are connected in terminal box 5 through threeway 4.
The bottom of described composite wire 8 bottoms and interior protection tube is welded to connect, and can guarantee strength of joint, convenient processing.
The below of protection tube in platinum resistance thermometer sensor, 10 is placed on, promptly bottom composite wire 8 helical elements, as long as can satisfy composite wire 8 thermometric requirements, platinum resistance thermometer sensor, 10 just can guarantee measuring accuracy, can effectively control the insertion depth of product.
Described platinum resistance thermometer sensor, 10 is positioned over interior protection tube bottom, keeps apart with thermo bimetal's silk.
Though this patent illustrated with reference to preferred embodiment and accompanying drawing, non-limiting yet above-mentioned explanation should be considered as illustrative, be familiar with variation and modification that this operator makes according to spirit of the present invention, all should belong to the protection domain of this patent.
Claims (4)
1. the integrated thermometric device of ultrashort type thermometal platinum resistance thermometer sensor, is characterized in that: comprises by gauge outfit, joint, and the bimetal type thermometer that interior protection tube, composite wire are formed, threeway, terminal box, cold junction, platinum resistance thermometer sensor,, outer protection tube, coupling bolt, wherein:
Gauge outfit is threaded with joint top, and joint is a hollow structure, and threeway is threaded with the top and the terminal box of joint bottom, cold junction respectively;
The bottom of cold junction is welded to connect with outer protection tube top, and the lower circumference of cold junction is installed coupling bolt, and cold junction is a hollow structure;
The inwall of the top of interior protection tube and joint bottom is welded to connect, interior protection tube runs through the extremely bottom of outer protection tube of threeway, cold junction, the center of interior protection tube is provided with a rotating shaft, the top of rotating shaft is connected with gauge outfit, the bottom of rotating shaft and the welding of composite wire top, fixedly connected with the bottom of interior protection tube in the composite wire bottom, the bottom sealing of interior protection tube;
The bottom of outer protection tube is provided with platinum resistance thermometer sensor,, the bottom sealing of outer protection tube, and the platinum resistance thermometer sensor, connecting line passes outer protection tube, cold junction, is connected in terminal box through threeway.
2. the integrated thermometric device of ultrashort type thermometal platinum resistance thermometer sensor, according to claim 1,
It is characterized in that:
Be welded to connect after one section of described outer protection tube insertion cold junction lower inner wall, guarantee the intensity and the concentricity of welding.
3. the integrated thermometric device of ultrashort type thermometal platinum resistance thermometer sensor, according to claim 1,
It is characterized in that: the bottom of described composite wire bottom and interior protection tube is welded to connect.
4. the integrated thermometric device of ultrashort type thermometal platinum resistance thermometer sensor, according to claim 1,
It is characterized in that: described platinum resistance thermometer sensor, is positioned at the below of protection tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019603 CN203083725U (en) | 2013-01-10 | 2013-01-10 | An ultra-short temperature measuring device integrating a bimetal with a platinum thermal resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019603 CN203083725U (en) | 2013-01-10 | 2013-01-10 | An ultra-short temperature measuring device integrating a bimetal with a platinum thermal resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083725U true CN203083725U (en) | 2013-07-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320019603 Expired - Fee Related CN203083725U (en) | 2013-01-10 | 2013-01-10 | An ultra-short temperature measuring device integrating a bimetal with a platinum thermal resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731831A (en) * | 2018-05-24 | 2018-11-02 | 兰州中联电子科技有限公司 | A kind of slewing vibration temperature measuring device |
| CN109668638A (en) * | 2019-01-28 | 2019-04-23 | 安徽天康(集团)股份有限公司 | A kind of high-precision ultralow temperature temperature monitor |
-
2013
- 2013-01-10 CN CN 201320019603 patent/CN203083725U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731831A (en) * | 2018-05-24 | 2018-11-02 | 兰州中联电子科技有限公司 | A kind of slewing vibration temperature measuring device |
| CN109668638A (en) * | 2019-01-28 | 2019-04-23 | 安徽天康(集团)股份有限公司 | A kind of high-precision ultralow temperature temperature monitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20140110 |