CN201464069U

CN201464069U - COT surface thermocouple

Info

Publication number: CN201464069U
Application number: CN2009201090029U
Authority: CN
Inventors: 吴方立; 倪海英; 陈静; 吴加特
Original assignee: 吴方立
Priority date: 2009-06-24
Filing date: 2009-06-24
Publication date: 2010-05-12
Anticipated expiration: 2019-06-24

Abstract

A COT surface thermocouple comprises a terminal block, a thermocouple, and a welding conductor pipe. An extending conductor pipe is connected to the upper end of the welding conductor pipe; a fixed part is connected at the upper end of the extending conductor pipe; a conductor pipe fixing clip is sleeved on the extending conductor pipe; the conductor pipe fixing clip is connected with one end of a fixed bracket, and the other end of the fixed bracket is connected with a furnace tube fixing clip; and the conductor pipe fixing clip and the fixed bracket form a certain inclined angle identical with that formed by the extending conductor pipe and the fixed bracket. In the COT surface thermocouple, the conductor pipe fixing clip is sleeved on the extending conductor pipe, and the conductor pipe fixing clip is connected with the furnace tube fixing clip through the fixed bracket. When the COT surface thermocouple is in use, the furnace tube fixing clip is sleeved on the furnace tube, so that the positions of the extending conductor pipe and the terminal block are fixed and the terminal block does not bear stress any more, thereby ensuring the mechanical behavior of the product.

Description

The COT surface thermocouple

Technical field

The utility model relates to a kind of thermopair that is used to measure temperature, relates in particular to a kind of COT surface thermocouple.

Background technology

Existing C OT surface thermocouple comprises terminal box, the thermopair that links to each other with terminal box, be arranged on the welding conduit of thermopair outside, the upper end of welding conduit connects extends conduit, the upper end and the terminal box of extending conduit are joined, during use with the adherent boiler tube of welding conduit of COT surface thermocouple, and the contact site welding that will weld conduit and boiler tube is fixing, to weld conduit inclination certain angle, make and extend conduit and surface level inclination certain angle, to guarantee between terminal box and boiler tube certain distance being arranged, prevent that the high temperature of boiler tube from passing to the accuracy that terminal box is measured with influence.But the terminal box of existing COT surface thermocouple and extension conduit are in vacant state, because high temperature can produce fatigue strength and cause the terminal box end stressed, have influence on the mechanical characteristic of product.

The utility model content

The technical problems to be solved in the utility model is the defective that overcomes above-mentioned prior art, and a kind of position of extending conduit and terminal box, COT surface thermocouple that can not influence the mechanical characteristic of product stablized is provided.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of COT surface thermocouple, comprise terminal box, the thermopair that links to each other with terminal box, be arranged on the welding conduit of thermopair outside, the upper end of welding conduit connects extends conduit, the upper end of described extension conduit is connected to the bottom and the contacted fixed part of welding conduit that is used to make thermopair, be with the fixing card of conduit on the described extension conduit, the fixing card of described conduit links to each other with a support bracket fastened end, the described support bracket fastened other end is connected with the fixing card of boiler tube, the fixing card of described conduit becomes certain angle of inclination with fixed support, this angle of inclination equates with extension conduit and support bracket fastened angle of inclination.

COT surface thermocouple of the present utility model, the fixing card of wherein said conduit comprises the conduit fixed sleeving, the conduit fixed sleeving is and extends the cylinder-shaped sleeve that conduit is complementary, the right-hand member of conduit fixed sleeving is provided with opening, the both sides of opening connect a conduit web joint respectively, and two conduit web joints and a support bracket fastened end fix; The fixing card of boiler tube comprises the boiler tube fixed sleeving, the boiler tube fixed sleeving is the cylinder-shaped sleeve that is complementary with boiler tube, the left end of boiler tube fixed sleeving is provided with opening, and the both sides of opening connect a boiler tube web joint respectively, and two the boiler tube web joints and the support bracket fastened other end fix.

COT surface thermocouple of the present utility model, wherein said fixed part is a pressed component, described pressed component comprises back-up ring and the holddown spring that is provided with on the thermopair that is screwed onto the threaded connector that extends the conduit upper end, forcing screw that the threaded connector upper end is spirally connected, extends place, position, conduit upper end, described holddown spring is enclosed within on the thermopair between forcing screw and the back-up ring, described holddown spring one end is against the bottom surface of forcing screw, and the other end is against the end face of back-up ring.

COT surface thermocouple of the present utility model, wherein said fixed part is an active card shell type assembly, described active card shell type assembly comprises the threaded connector that is screwed onto extension conduit upper end, the cutting ferrule bolt that the threaded connector upper end is spirally connected, the cutting ferrule nut that cutting ferrule bolt upper end is spirally connected, and first cutting ferrule and second cutting ferrule that are enclosed within on the thermopair and can slide along thermopair, second cutting ferrule is a back taper, the inwall of the outside surface of the bottom of second cutting ferrule and cutting ferrule bolt closely cooperates, first cutting ferrule is positioned at the top of second cutting ferrule and is close to second cutting ferrule, and the cutting ferrule nut is pressed in the upper surface of first cutting ferrule.

COT surface thermocouple of the present utility model, the right side, bottom of wherein said welding conduit are provided with the welding plane.

The utility model COT surface thermocouple is with the fixing card of conduit on the extension conduit, conduit fixedly cartoon is crossed the fixing card of fixed support and boiler tube and is linked to each other, fixedly be fastened in boiler tube on the boiler tube during use, thereby the stationkeeping that will extend conduit and terminal box is lived, make terminal box no longer stressed, thereby guaranteed the mechanical characteristic of product.

Description of drawings

Figure 1 shows that the structural representation of first kind of embodiment of the utility model COT surface thermocouple;

Fig. 2 is an A place enlarged drawing among Fig. 1;

Fig. 3 is the front view of the fixing card of conduit;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is the structural representation of second kind of embodiment of the utility model COT surface thermocouple;

Fig. 6 is a B place enlarged drawing among Fig. 5;

Fig. 7 is the structural representation of welding conduit.

Embodiment

As shown in Figure 1, the utility model COT surface thermocouple, comprise terminal box 1, the thermopair 2 that links to each other with terminal box 1, be arranged on the welding conduit 3 of thermopair 2 outsides, the upper end of welding conduit 3 connects by screw 31 extends conduit 4, and the upper end of extending conduit 4 is connected to the bottom and welding conduit 3 contacted fixed parts that is used to make thermopair 2.In conjunction with shown in Figure 2, fixed part is a pressed component 5 in the present embodiment, pressed component 5 comprises and is screwed onto the threaded connector 51 that extends conduit 4 upper ends, forcing screw 52 that threaded connector 51 upper ends are spirally connected, extends the back-up ring 53 and the holddown spring 54 that are provided with on the thermopair 2 at place, position, conduit 4 upper end, holddown spring 54 is enclosed within on the thermopair 2 between forcing screw 52 and the back-up ring 53, holddown spring 54 1 ends are against the bottom surface of forcing screw 52, and the other end is against the end face of back-up ring 53.When rotatably compressing screw 52, forcing screw 52 can move down, and holddown spring 54 is compressed, under the tension force effect of holddown spring 54, back-up ring 53 drives thermopair 2 and moves down, thereby the bottom that has guaranteed thermopair 2 contacts with the inside surface of welding conduit 3 bottoms all the time.

Extend and be with the fixing card 6 of conduit on the conduit 4, the fixing card of conduit 6 links to each other with an end of fixed support 7, the other end of fixed support 7 is connected with the fixing card 8 of boiler tube, the fixing card 6 of conduit and 7 one-tenth certain angles of inclination of fixed support, and this angle of inclination equates with the angle of inclination of extending conduit 4 and fixed support 7.In conjunction with Fig. 3 and shown in Figure 4, the fixing card 6 of conduit comprises conduit fixed sleeving 61, conduit fixed sleeving 61 is and extends the cylinder-shaped sleeve that conduit 4 is complementary, the right-hand member of conduit fixed sleeving 61 is provided with opening 62, the both sides of opening 62 connect a conduit web joint 63 respectively, two conduit web joints 63 are clamped an end of fixed support 7, and fixing by bolt 64.The fixing card 8 of boiler tube comprises boiler tube fixed sleeving 81, boiler tube fixed sleeving 81 is the cylinder-shaped sleeve that is complementary with boiler tube 9, the left end of boiler tube fixed sleeving 81 is provided with opening 82, the both sides of opening 82 connect a boiler tube web joint 83 respectively, two boiler tube web joints 83 are clamped the other end of fixed support 7, and fixing by bolt 84.This project organization is simple, and easy accessibility is solid and reliable.

As shown in Figure 7, firmly be welded on the boiler tube 9, be provided with welding plane 32 on the right side, bottom of welding conduit 3 in order to make welding conduit 3.

Figure 5 shows that second kind of embodiment of the utility model COT surface thermocouple, the difference of itself and first kind of embodiment only is that fixed part is an active card shell type assembly 10, in conjunction with shown in Figure 6, active card shell type assembly 10 comprises the threaded connector 55 that is screwed onto extension conduit 4 upper ends in the present embodiment, the cutting ferrule bolt 56 that threaded connector 55 upper ends are spirally connected, the cutting ferrule nut 57 that cutting ferrule bolt 56 upper ends are spirally connected, and first cutting ferrule 58 and second cutting ferrule 59 that are enclosed within on the thermopair 2 and can slide along thermopair 2, second cutting ferrule 59 is a back taper, the inwall of the outside surface of the bottom of second cutting ferrule 59 and cutting ferrule bolt 56 closely cooperates, first cutting ferrule 58 is positioned at the top of second cutting ferrule 59 and is close to second cutting ferrule 59, cutting ferrule nut 57 is pressed in the upper surface of first cutting ferrule 58. and the effect of active card shell type assembly 10 is that thermopair 2 is fixed, the bottom of thermopair 2 is contacted with welding conduit 3. during use, earlier thermopair 2 is inserted and extend in conduit 4 and the welding conduit 3, threaded connector 55 is screwed onto extension conduit 4 upper ends, cutting ferrule bolt 56 is screwed onto on the threaded connector 55, the bottom of thermopair 2 is contacted with welding conduit 3, then first cutting ferrule 58 and second cutting ferrule 59 are slid into and be close to cutting ferrule bolt 56, at last cutting ferrule nut 57 and cutting ferrule bolt 56 are tightened, thereby thermopair 2 is fixed. because first cutting ferrule 58 and second cutting ferrule 59 can slide along thermopair 2, therefore the position of active card shell type assembly 10 on thermopair 2 is adjustable, and be flexible for installation.

As shown in Figure 1, when using the utility model COT surface thermocouple, with boiler tube fixedly cutting ferrule 81 and boiler tube web joint 83 and fixed support 7 are fixed in the outside of boiler tube 9 with bolt 84, the welding plane 32 that to weld conduit 3 then is fixing with the outside surface welding of boiler tube 9, can begin to measure.Be fixed owing to extend the position of conduit 4 and terminal box 1, make terminal box no longer stressed, thereby guaranteed the mechanical characteristic of product.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. COT surface thermocouple, comprise terminal box, the thermopair that links to each other with terminal box, be arranged on the welding conduit of thermopair outside, the upper end of welding conduit connects extends conduit, it is characterized in that: the upper end of described extension conduit is connected to the bottom and the contacted fixed part of welding conduit that is used to make thermopair, be with the fixing card of conduit on the described extension conduit, the fixing card of described conduit links to each other with a support bracket fastened end, the described support bracket fastened other end is connected with the fixing card of boiler tube, the fixing card of described conduit becomes certain angle of inclination with fixed support, this angle of inclination equates with extension conduit and support bracket fastened angle of inclination.

2. COT surface thermocouple according to claim 1, it is characterized in that: the fixing card of described conduit comprises the conduit fixed sleeving, the conduit fixed sleeving is and extends the cylinder-shaped sleeve that conduit is complementary, the right-hand member of conduit fixed sleeving is provided with opening, the both sides of opening connect a conduit web joint respectively, and two conduit web joints and a support bracket fastened end fix; The fixing card of boiler tube comprises the boiler tube fixed sleeving, the boiler tube fixed sleeving is the cylinder-shaped sleeve that is complementary with boiler tube, the left end of boiler tube fixed sleeving is provided with opening, and the both sides of opening connect a boiler tube web joint respectively, and two the boiler tube web joints and the support bracket fastened other end fix.

3. COT surface thermocouple according to claim 1 and 2, it is characterized in that: described fixed part is a pressed component, described pressed component comprises back-up ring and the holddown spring that is provided with on the thermopair that is screwed onto the threaded connector that extends the conduit upper end, forcing screw that the threaded connector upper end is spirally connected, extends place, position, conduit upper end, described holddown spring is enclosed within on the thermopair between forcing screw and the back-up ring, described holddown spring one end is against the bottom surface of forcing screw, and the other end is against the end face of back-up ring.

4. COT surface thermocouple according to claim 1 and 2, it is characterized in that: described fixed part is an active card shell type assembly, described active card shell type assembly comprises the threaded connector that is screwed onto extension conduit upper end, the cutting ferrule bolt that the threaded connector upper end is spirally connected, the cutting ferrule nut that cutting ferrule bolt upper end is spirally connected, and first cutting ferrule and second cutting ferrule that are enclosed within on the thermopair and can slide along thermopair, second cutting ferrule is a back taper, the inwall of the outside surface of the bottom of second cutting ferrule and cutting ferrule bolt closely cooperates, first cutting ferrule is positioned at the top of second cutting ferrule and is close to second cutting ferrule, and the cutting ferrule nut is pressed in the upper surface of first cutting ferrule.

5. COT surface thermocouple according to claim 1 and 2 is characterized in that: the right side, bottom of described welding conduit is provided with the welding plane.

6. COT surface thermocouple according to claim 4 is characterized in that: the right side, bottom of described welding conduit is provided with the welding plane.