The mounting structure of surface heat resistance on pipeline
Technical field
The utility model relates to a kind of thermal resistance mounting structure of measuring tube wall surface temperature.
Background technology
In aluminum oxide production process; medium that is circulated such as ore pulp, sodium aluminate solution, red mud, washing lotion etc.; wearing and tearing to plug-in type temperature element protection tube are very serious, can only adopt the temperature of surface heat resistance measurement tube wall surface, thereby know the temperature of medium in the pipe indirectly.Facts have proved, temperature with the method measuring media is an efficient ways, but, it is that the temperature measuring head part can not guarantee fully to touch tube wall that existing mounting structure causes the end of thermal resistance, one section air column is arranged between tube wall and the temperature measuring head through being everlasting, fail to measure the real surface temperature of tube wall, thereby measuring error is bigger.Existing mounting structure carrying on the wear medium pipeline 2, welds an erection support as shown in Figure 1, by holddown spring, the temperature sensor 1 of surface heat resistance is fixed on the steel conduit 2.In the construction, the weld horizontal of erection support, the tension force of holddown spring all directly influence the degree that surface heat resistance temperature measurement end contacts with the steel conduit surface, thereby influence temperature measurement accuracy.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of new mounting structure of surface heat resistance on pipeline is provided, and the thermal resistance temperature measuring head part that exists with the solution prior art can not fully touch tube wall, cause measuring error deficiency bigger than normal.
The utility model is taked following technical scheme: temperature sensor is made into strap-like objects, utilizes flexible clip that it is close to the steel conduit surface, guarantee that temperature sensor closely contacts with steel conduit, measure tube wall real surface temperature, guarantee measuring accuracy.
For the occasion of less caliber, temperature sensor can be placed along the axis direction of steel conduit, widen flexible clip, make temperature sensor be close to the surface of steel conduit, guarantee measuring accuracy.
Meaning of the present utility model and effect are as follows: be not subjected to the influence of artificial solder technology and holddown spring tension force, measure accurately, and simple in structure, save investment, reduce servicing time, and reliability service chronically.Have liner for some, can not carry out the thermometric of the interior medium of composite material tube of perforate welding, also available this structure.
Description of drawings
Fig. 1 is the prior art constructions synoptic diagram;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the cut-open view of Fig. 2.
Reference numeral among Fig. 1 is expressed as respectively: 4-surface heat resistance, 5-holddown spring, 6-erection support.
Embodiment
Embodiment of the present utility model: the utility model comprises pipeline 2, the temperature sensor 1 of thermal resistance, and the temperature sensor 1 of thermal resistance is made into band shape, and temperature sensor 1 is contacted with the applying of face with pipeline 2 formation faces.
Closely firm in order to fit, use clip 3 that temperature sensor 1 and pipeline 2 are fixed.
The utility model changes the way of contact of temperature element and tube wall, becomes the face contact by a contact, with the anchor ear card temperature detector closely is attached to tube wall surface, guarantees to measure tube wall real surface temperature.