CN204461636U - A kind of thermopair aided measurement device for measuring tape fulgurite wall temperature - Google Patents
A kind of thermopair aided measurement device for measuring tape fulgurite wall temperature Download PDFInfo
- Publication number
- CN204461636U CN204461636U CN201520070418.XU CN201520070418U CN204461636U CN 204461636 U CN204461636 U CN 204461636U CN 201520070418 U CN201520070418 U CN 201520070418U CN 204461636 U CN204461636 U CN 204461636U
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- China
- Prior art keywords
- guide ring
- thermopair
- fulgurite
- measurement device
- measuring tape
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Abstract
The utility model discloses a kind of thermopair aided measurement device for measuring tape fulgurite wall temperature, described device comprises guide ring, described guide ring is provided with the flange with fastening bolt, guide ring is also provided with one section of boss, be provided with the installation of TC groove with rotary handle in the middle part of described boss, above described the installation of TC groove, be connected with flat head screw by screw base.The utility model have structure and simple to operate, degree of accuracy is high, stability and high efficiency, the advantage such as highly sensitive, cost-saving.
Description
Technical field
The utility model relates to the thermopair subsidiary frock of measuring tempeature, in particular, relates to a kind of thermopair aided measurement device for measuring tape fulgurite wall temperature.
Background technology
In some cases, we often need the surface temperature with thermocouple measurement charged object, such as measure the surface temperature of electric heating tube, heating wire, electrothermal plate, or under other specific operations measuring tape fulgurite wall surface temperature, with the working condition of equipment.Now, if voltage gradient is comparatively large on tube wall, if do not taken measures, then can be excessive with the surperficial thermocouple measurement end additional potential that causes in parallel to be measured because of thermopair, thermometric is forbidden.
Present common way mainly contains two kinds, one: be thermocouple assay end and electrified body are insulated, and two: thermocouple voltages signal is filtered or data correction.Insulating material is arranged in thermopair and surveys between section and wall or adopt the armoured thermocouple that thermo wires and protective casing insulate to measure by insulation method often.Such as glue one deck insulating tape on surface to be measured or arrange other insulating material, not affecting by additional potential to realize thermopair.Signal filter rule adopts filters filter AC signal to alternating voltage, can be carried out the estimation of additional potential to direct current additional potential by specific process.Existing method is comparatively large to the investment of measuring equipment, and suitable equipment will be selected to need certain theoretical foundation, otherwise can not get a desired effect, and implements and has certain difficulty.Such as, insulating material often thermal conductivity is poor, and cause measuring error large, the insulating material that heat conduction is good is then often subject to the restriction of the warm upper limit.Adopt armoured thermocouple then to cause the sensitivity of thermocouple measurement and precision to reduce, armoured thermocouple is installed more difficult on small space and curved surface simultaneously, and the cost of armoured thermocouple own is also higher.Adopt signal filter rule to need higher theoretical foundation, otherwise do not reach effect, be not suitable for those skilled in the art, workmen uses, cost is high simultaneously.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, a kind of thermopair aided measurement device for measuring tape fulgurite wall temperature is provided, this device have structure and simple to operate, degree of accuracy is high, stability and high efficiency, the advantage such as highly sensitive, cost-saving.
The purpose of this utility model is achieved through the following technical solutions:
A kind of thermopair aided measurement device for measuring tape fulgurite wall temperature, described device comprises guide ring, described guide ring is provided with the flange with fastening bolt, guide ring is also provided with one section of boss, be provided with the installation of TC groove with rotary handle in the middle part of described boss, above described the installation of TC groove, be connected with flat head screw by screw base.
Described guide ring is made up of the less metal material of resistance coefficient.
Described guide ring is made up of silver, copper, aluminium one wherein.
The thickness of described guide ring is 0.5-5mm.
Described flat head screw is made up of nylon.
Compared with prior art, the beneficial effect that the technical solution of the utility model is brought is:
1. the guide ring in the utility model device is made up of the simple metal that resistance coefficient is little, during use, guide ring being adjacent to metal pipe-wall to be measured and being connected, by reducing detected part and neighbouring all-in resistance thereof, and then reducing local voltage gradient, make measurement data more reliable, accurately.
2. the installation of TC groove in the utility model guide ring is provided with the rotary handle that can regulate direction, can by adjustment thermopair direction during use, thus reduce additional potential to greatest extent, simultaneously hardly by the restriction of upper temperature limit, make the utility model device stability and high efficiency, and all applicable to AC DC electric.
4. fixed by tack nylon screw above the installation of TC groove of the present utility model, it is convenient that thermopair is changed, and makes thermocouple probe and guide ring fit tightly simultaneously, in addition nylon screw poor heat conductivity and quality is softer, thus reduce heat diffusion, raising measuring accuracy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure for amplifying schematic diagram of projection section.
Fig. 3 is effect contrast figure before and after using.
Reference numeral: 1-guide ring 2-flange 3-fastening bolt 4-boss 5-the installation of TC groove 6-screw base 7-flat head screw 8-rotary handle
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As depicted in figs. 1 and 2: a kind of thermopair aided measurement device for measuring tape fulgurite wall temperature, described device comprises guide ring 1, guide ring 1 is made up of the less metal material of resistance coefficient, as silver, copper, aluminium wherein any one, guide ring 1 in the present embodiment is made up of fine copper, internal diameter is 22mm, and thickness is 1mm, guide ring 1 is provided with the flange 2 with fastening bolt 3, realizes guide ring 1 fit tightly with tube wall to be measured during use by fixing fastening bolt 3, and the fitting tightly of thermopair coupling part and part to be measured, guide ring 1 is also provided with one section of boss 4, the middle part of boss 4 is provided with the installation of TC groove 5 with rotary handle 8, by the installation site of the relative tube wall of rotation adjustable heat galvanic couple of rotary handle 8, the direction coordinating secondary instrument to find additional potential minimum (all there is additional potential in thermopair two thermo wires, on a specific installation direction, additional electrical potential energy on two thermo wires is cancelled out each other to greatest extent), thus make guide ring 1 with under the acting in conjunction of rotary handle 8, reduce thermopair additional potential to greatest extent, guarantee measuring accuracy and stability.
The top of the installation of TC groove 5 is provided with screw base 6, flat head screw 7 is installed in screw base 6, flat head screw 7 is made up of nylon, after installing thermopair during use in the installation of TC groove 5, then by flat head screw 7, the guide ring 1 of thermocouple probe and bottom is fitted tightly, because flat head screw 7 is nylon66 fiber material, quality is softer, such thermocouple probe can cave in into the head of nylon flat head screw 7, thus reduces heat diffusion, improves measuring accuracy.
In the utility model, guide ring 1 and metal pipe-wall to be measured are at local parallel, and by reducing detected part and neighbouring all-in resistance thereof, and then reduce local voltage gradient, the sectional area of guide ring 1 is larger, and it is more obvious that additional potential reduces.Specifically can carry out quantitative test by resistance value R1 and the R2 of guide ring and tube wall parallel connection part to be measured, the thermopair additional potential after guide ring 1 is used to be R1/R2 with the ratio of the maximum additional potential not using guide ring, what therefore the less then additional potential of the value of R1/R2 reduced is more obvious, therefore guide ring 1 should have the sectional area that tube wall relatively to be measured is larger, thus the relative cross-section of adjustment guide ring 1 can be utilized to amass the accuracy and precision that improve temperature measuring further.
Fig. 3 is change (being incubated the thermopair) curve map that the additional potential disappearance instantaneous heat galvanic couple obtained by Agilent data collecting instrument records temperature, experimental result records on φ 22 × 1 stainless steel tube wall, voltage gradient on stainless steel tube wall is 20V/m, and the sectional area of guide ring 1 is 2.27mm
2, material is fine copper.As seen from the figure, during direct stationary heat galvanic couple, there are big ups and downs (illustrating that additional potential is larger) in additional potential disappearance moment (being realized by powered-down) temperature, when after employing stationary installation of the present utility model, temperature fluctuation almost disappears, and visible the utility model device is clearly reliable and stable on the impact reducing thermopair additional potential.
Claims (5)
1. the thermopair aided measurement device for measuring tape fulgurite wall temperature, it is characterized in that, described device comprises guide ring, described guide ring is provided with the flange with fastening bolt, guide ring is also provided with one section of boss, be provided with the installation of TC groove with rotary handle in the middle part of described boss, above described the installation of TC groove, be connected with flat head screw by screw base.
2. a kind of thermopair aided measurement device for measuring tape fulgurite wall temperature according to claim 1, it is characterized in that, described guide ring is made up of the less metal material of resistance coefficient.
3. a kind of thermopair aided measurement device for measuring tape fulgurite wall temperature according to claim 1 and 2, it is characterized in that, described guide ring is made up of silver, copper, aluminium one wherein.
4. a kind of thermopair aided measurement device for measuring tape fulgurite wall temperature according to claim 1 and 2, is characterized in that, the thickness of described guide ring be 0.5 ?5mm.
5. a kind of thermopair aided measurement device for measuring tape fulgurite wall temperature according to claim 1, it is characterized in that, described flat head screw is made up of nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520070418.XU CN204461636U (en) | 2015-01-30 | 2015-01-30 | A kind of thermopair aided measurement device for measuring tape fulgurite wall temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520070418.XU CN204461636U (en) | 2015-01-30 | 2015-01-30 | A kind of thermopair aided measurement device for measuring tape fulgurite wall temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204461636U true CN204461636U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520070418.XU Expired - Fee Related CN204461636U (en) | 2015-01-30 | 2015-01-30 | A kind of thermopair aided measurement device for measuring tape fulgurite wall temperature |
Country Status (1)
| Country | Link |
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| CN (1) | CN204461636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614087A (en) * | 2015-01-30 | 2015-05-13 | 天津大学 | Thermocouple assistance measuring device for measuring temperature of electrified pipe wall |
-
2015
- 2015-01-30 CN CN201520070418.XU patent/CN204461636U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614087A (en) * | 2015-01-30 | 2015-05-13 | 天津大学 | Thermocouple assistance measuring device for measuring temperature of electrified pipe wall |
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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: 20150708 Termination date: 20170130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |