Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of length adjustable gasification furnace special electric thermo-couple is provided, this thermopair has safe position limiting structure, can reach best measuring position by the free adjustment elongation, shock resistance is better, security is higher, and serviceable life is longer, can be high temperature resistant, high pressure, high wearing and tearing, deep-etching.
The utility model solves its technical matters and is achieved through the following technical solutions:
A kind of length adjustable gasification furnace special electric thermo-couple; comprise terminal box; universal commentaries on classics ball seat; universal commentaries on classics ball; spacing guide pipe; the damping spring device; protective casing and thermometric core body; universal commentaries on classics ball installs by universal commentaries on classics ball seat and terminal box; the coaxial lower end that is packed in universal commentaries on classics ball of spacing guide pipe; the damping spring device is sleeved on the outer wall of spacing guide pipe; the upper end of this damping spring device is packed in the lower end of universal commentaries on classics ball seat; the thermometric core body places in the protective casing and its upper end connects terminal box; its protective casing is connected with spacing guide pipe by the coaxial adjustable adapter sleeve of a nut that installs of its outer wall; this spacing guide pipe outer wall is shaped on stopper slot, with the adjustable adapter sleeve of the corresponding nut of stopper slot on be embedded with a spacer pin.
And, described damping spring device comprises upper spring Connection Block, damping spring, lower spring Connection Block and spring tension cap, damping spring upper end is by the be connected with a joggle lower end of universal commentaries on classics ball seat of upper spring Connection Block, the damping spring lower end is by the lower spring Connection Block spring tension cap that is connected with a joggle, this spring tension cap tension damping spring that matches with the coaxial baffle ring that is packed in spacing guide pipe outer wall.
And; described protective casing comprises the corundum core from inside to outside respectively; the one-level alundum tube; secondary alundum tube and carborundum tube; the thermometric core body places the corundum in-core; the carborundum tube upper end presses female external wall of upper portion to install the adjustable adapter sleeve of nut by a silit pillar; this silit pillar is pressed female coaxial secondary alundum tube sheath that installs of upper inside wall; this secondary alundum tube sheath coaxial package is at secondary alundum tube outer wall; this silit pillar is pressed the coaxial silit pillar fixed cover that installs of female bottom outer wall; at carborundum tube; the silit pillar is pressed between mother and the silit pillar fixed cover and by pressure ring the graphite grazing pad is installed; and between carborundum tube and silit pillar fixed cover, be filled with the high-temperature water earth rubber, between carborundum tube and secondary alundum tube, be filled with magnesia powder and ceramic fiber blanket.
And described protective casing upper end is filled with high-temperature seal adhesive.
And the adjustable adapter sleeve of described nut comprises set nut, sealed pressure pad and adjustable adapter sleeve, and adjustable adapter sleeve is sleeved on the protective casing outer wall, and the set nut that adjustable adapter sleeve is connected with a joggle by its upper end compresses sealed pressure pad and is connected with protective casing.
And the stopper slot lower end of described spacing guide pipe outer wall is shaped on positive stop.
And, lead-in wire is installed in the described universal commentaries on classics ball seat compresses hard packing and lead-in wire sealing gasket.
Advantage of the present utility model and beneficial effect are:
1, the protective casing of this thermopair is connected with spacing guide pipe by the coaxial adjustable adapter sleeve of a nut that installs of its outer wall; this spacing guide pipe outer wall is shaped on stopper slot; with the adjustable adapter sleeve of the corresponding nut of stopper slot on be embedded with a spacer pin; this kind structure has the spacing characteristics of safety; make and avoid protective casing to come off when regulating length and the damage of thermometric core body; length adjustment is simple, and manufacture craft is simple.
2, the damping spring device of this thermopair comprises the upper spring Connection Block, damping spring, lower spring Connection Block and spring tension cap, damping spring upper end is by the be connected with a joggle lower end of universal commentaries on classics ball seat of upper spring Connection Block, the damping spring lower end is by the lower spring Connection Block spring tension cap that is connected with a joggle, this spring tension cap tension damping spring that matches with the coaxial baffle ring that is packed in spacing guide pipe outer wall, when thermopair shakes because of washing away of high pressure draught, the use that matches with universal commentaries on classics ball of damping spring with certain intensity, can reduce thermopair significantly and damaged danger coefficient take place, avoid because of fractureing of causing of torsion or rupture because of vibrations.
3; the protective casing of this thermopair comprises the corundum core from inside to outside respectively; the one-level alundum tube; secondary alundum tube and carborundum tube; the thermometric core body places the corundum in-core; the carborundum tube upper end presses female external wall of upper portion to install the adjustable adapter sleeve of nut by a silit pillar; this silit pillar is pressed female coaxial secondary alundum tube sheath that installs of upper inside wall; this secondary alundum tube sheath coaxial package is at secondary alundum tube outer wall; this silit pillar is pressed the coaxial silit pillar fixed cover that installs of female bottom outer wall; at carborundum tube; the silit pillar is pressed between mother and the silit pillar fixed cover and by pressure ring the graphite grazing pad is installed; and between carborundum tube and silit pillar fixed cover, be filled with the high-temperature water earth rubber; between carborundum tube and secondary alundum tube, be filled with magnesia powder and ceramic fiber blanket; carrying out vacuum seal between every layer of pipe fills; effectively prevented HS; the intrusion of extremely strong Korrosionsmedium such as CO; prevent the damage that noble metal platinum rhodium element causes because of hydrogen embrittlement; the protective casing upper end is filled with high-temperature seal adhesive in addition; the place utilizes high-temperature seal adhesive to carry out encapsulation adhesion at thermometric core body cold junction; lead-in wire is installed in the universal commentaries on classics ball seat compresses hard packing and lead-in wire sealing gasket; to prevent medium and outside generation convection current after the protection tube fracture, realize safety in production.
4, the adjustable adapter sleeve of the nut of this thermopair comprises set nut; sealed pressure pad and adjustable adapter sleeve; adjustable adapter sleeve is sleeved on the protective casing outer wall; the set nut that adjustable adapter sleeve is connected with a joggle by its upper end compresses sealed pressure pad and is connected with protective casing; easy to adjust quick; save the time of maintenance maintenance and adjustment, improved work efficiency.
5, the utlity model has safe position limiting structure, can reach best measuring position by the free adjustment elongation, shock resistance is better, and serviceable life is longer, can be high temperature resistant, high pressure, high wearing and tearing and deep-etching, be the higher length adjustable gasification furnace special electric thermo-couple of a kind of security.