CN202204610U - External-wrapping type thermocouple - Google Patents
External-wrapping type thermocouple Download PDFInfo
- Publication number
- CN202204610U CN202204610U CN2011203257438U CN201120325743U CN202204610U CN 202204610 U CN202204610 U CN 202204610U CN 2011203257438 U CN2011203257438 U CN 2011203257438U CN 201120325743 U CN201120325743 U CN 201120325743U CN 202204610 U CN202204610 U CN 202204610U
- Authority
- CN
- China
- Prior art keywords
- fire clay
- clay head
- quartz ampoule
- bound edge
- support
- 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 - Lifetime
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Abstract
The utility model relates to an external-wrapping type thermocouple, comprising a quartz tube equipped with platinum spun gold, a fire clay head with a hollow structure, a connecting support connected with the fire clay head via insertion, and two compensation leads arranged in the connecting support, wherein the quartz tube is arranged upon the top of the connection support; the upper portion of the fire clay head is covered with a bound edge aluminium cap; the medial surface of the bound edge aluminium cap is applied to the external periphery of the fire clay head; and the compensation leads are respectively connected with two ends of the quartz tube. The external-wrapping type thermocouple, with a connecting support of an integral structure, can save cost and allow batch production, thereby making the quartz tube realize rapid positioning and improving working efficiency. The bound edge aluminium cap covers the fire clay head, so the bound edge aluminium cap can be prevented from inserting into fire clay which will lead to uneven height of the quartz tube in fire clay and accordingly affect the measuring precision.
Description
Technical field
The utility model relates to the field of thermopair, especially a kind of outer-enwraped type thermopair.
Background technology
Thermopair is a kind of temperature-sensing element, is a kind of instrument, and it directly measures temperature, and converts temperature signal to the thermopower signal, converts the temperature of measured medium to through electric appearance (secondary instrument).The ultimate principle of thermocouple temperature measurement is that the material conductor of two kinds of different components is formed the closed-loop path; When there is thermograde in two ends; Just have electric current in the loop and pass through, just exist electromotive force---thermopower, Here it is so-called Seebeck effect (Seebeck effect) between the two ends this moment.The homogeneous conductor of two kinds of different components is a thermode, and the higher end of temperature is the working end, and the end that temperature is lower is a free end, and free end is under certain stationary temperature usually.According to thermopower and functional relationship of temperature, process thermocouple indexing table; Dividing kilsyth basalt is to obtain under the condition of free end temperature in the time of 0 ℃, and different thermopairs has different branch kilsyth basalts.
The thermopair that uses at present is in assembling process, owing to there is not locating device, the assembler buries notes with quartz ampoule and is difficult to obtain accurate localization when the fire clay head, thereby causes thermocouple wire temperature-sensitive deviation easily, so far influences the measuring accuracy of testing medium.
The utility model content
The technical matters that the utility model will solve is: in order to overcome the above-mentioned middle problem that exists, a kind of outer-enwraped type thermopair that improves measuring accuracy and avoid thermocouple wire temperature-sensitive deviation is provided.
The utility model solves the technical scheme that its technical matters adopted: a kind of outer-enwraped type thermopair; The fire clay head that comprises quartz ampoule that platinum wire is housed, hollow structure with being connected support and being set in two compensating wires that connect internal stent of fire clay head socket connection; Described quartz ampoule is installed on the top that connects support; Described fire clay head top is covered with bound edge aluminium cap; The outer circumference face of bound edge aluminium cap medial surface and fire clay head fits, and two compensating wires are connected with the quartz ampoule two ends respectively.
In order to make the fire clay head and to be connected the connection of support better fit; Described connection support comprises first step that is fastened on the fire clay head madial wall and the bracing frame that is blocked in the second step on the fire clay head edge and is used to support quartz ampoule; Described bracing frame is fixed on the first step; First step is fixedly connected with second step, and second step is fixed with connection-peg on the another side.
For better clamping quartz ampoule; Described bracing frame comprises the connecting rod that is fixed on the first step and is fixed on interlinking lever end and be used for the semicircular arc dop of clamping quartz ampoule and be fixed on the block on the connecting rod that described block is arranged on the below of semicircular arc dop.
In order can injection moulding to make things convenient for, strengthen intensity, described first step, second step and bracing frame are structure as a whole.
The beneficial effect of the utility model is: the outer-enwraped type thermopair of the utility model, adopt the connection support of integrative-structure, and can practice thrift cost and can mass production, thereby quartz ampoule is located fast, increase work efficiency; Bound edge aluminium calotte on the fire clay head, can be avoided bound edge aluminium cap to insert and caused quartz ampoule uneven at the height of fire clay in the fire clay, thereby influence measuring accuracy.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the cut-open view of the utility model;
Fig. 2 is the cut-open view of bracing frame among Fig. 1.
1. quartz ampoules among the figure, 2. the fire clay head 3. connects support, 31. first steps, 32. second steps, 33-1. connecting rod, 33-2. semicircular arc dop, 33-3. block, 34. connection-pegs, 4. compensating wire, 5. bound edge aluminium cap.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the synoptic diagram of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Outer-enwraped type thermopair as shown in Figure 1; The fire clay head 2 that comprises quartz ampoule 1 that platinum wire is housed, hollow structure with being connected support 3 and being set in and connect two inner compensating wires 4 of support 3 of fire clay head 2 socket connections; Quartz ampoule 1 is installed on the top that connects support 3; Fire clay head 2 tops are covered with bound edge aluminium cap 5, and the outer circumference face of bound edge aluminium cap 5 medial surfaces and fire clay head 2 fits, and two compensating wires 4 are connected with quartz ampoule 1 two ends respectively.
Outer-enwraped type thermopair as shown in Figure 2; Connect support 3 and comprise first step 31 that is fastened on fire clay head 2 madial walls and the bracing frame that is blocked in the second step 32 on fire clay head 2 edges and is used to support quartz ampoule 1; Bracing frame comprises the connecting rod 33-1 that is fixed on the first step 31 and is fixed on connecting rod 33-1 end and is used for the semicircular arc dop 33-2 of clamping quartz ampoule 1 and is fixed on the block 33-3 on the connecting rod 33-1; Block 33-3 is arranged on the below of semicircular arc dop 33-2; Bracing frame 33 is fixed on the first step 31; First step 31 is fixedly connected with second step 32, and second step is fixed with connection-peg 34 on 32 another sides, and first step 31, second step 32 and bracing frame are structure as a whole.
The assembly method of the outer-enwraped type thermopair of the utility model: at first will have quartz ampoule 1 is installed on the connection support 3 of compensating wire 4; One end of quartz ampoule 1 is plugged in the semicircular arc dop 33-2 and peaks on the block 33-3; Platinum wire one end in the quartz ampoule 1 and the wherein end welding of a compensating wire 4; The other end welds with another root compensating wire 4 mutually, will connect the end that first step 31 on the support 3 is plugged on fire clay head 2 then, and second step 32 peaks at the port of fire clay head 2; Then at the other end casting cement of fire clay head 2; Quartz ampoule 1 is fixed, wait cement to parch fully after, on the outer circumference of fire clay head 2, coat bound edge aluminium cap 5 and can form the outer-enwraped type thermopair.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the instructions, must confirm its technical scope according to the claim scope.
Claims (4)
1. outer-enwraped type thermopair; It is characterized in that: the fire clay head (2) that comprises quartz ampoule (1) that platinum wire is housed, hollow structure with being connected support (3) and being set in and connect inner two compensating wires (4) of support (3) of fire clay head (2) socket connection; Described quartz ampoule (1) is installed on the top that connects support (3); Described fire clay head (2) top is covered with bound edge aluminium cap (5); The outer circumference face of bound edge aluminium cap (5) medial surface and fire clay head (2) fits, and two compensating wires (4) are connected with quartz ampoule (1) two ends respectively.
2. outer-enwraped type thermopair according to claim 1; It is characterized in that: described connection support (3) comprises and is fastened on the first step (31) on fire clay head (2) madial wall and is blocked in second step (32) on fire clay head (2) edge and the bracing frame that is used to support quartz ampoule (1); Described bracing frame is fixed on the first step (31); First step (31) is fixedly connected with second step (32), and second step (32) is fixed with connection-peg (34) on the another side.
3. outer-enwraped type thermopair according to claim 2; It is characterized in that: described bracing frame comprises the connecting rod (33-1) that is fixed on the first step (31) and is fixed on connecting rod (33-1) end and be used for the semicircular arc dop (33-2) of clamping quartz ampoule (1) and be fixed on the block (33-3) on the connecting rod (33-1) that described block (33-3) is arranged on the below of semicircular arc dop (33-2).
4. outer-enwraped type thermopair according to claim 2 is characterized in that: described first step (31), second step (32) and bracing frame (33) are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203257438U CN202204610U (en) | 2011-08-31 | 2011-08-31 | External-wrapping type thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203257438U CN202204610U (en) | 2011-08-31 | 2011-08-31 | External-wrapping type thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202204610U true CN202204610U (en) | 2012-04-25 |
Family
ID=45968729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203257438U Expired - Lifetime CN202204610U (en) | 2011-08-31 | 2011-08-31 | External-wrapping type thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202204610U (en) |
-
2011
- 2011-08-31 CN CN2011203257438U patent/CN202204610U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |