CN203519189U - Thermocouple for furnace slag viscosity measurement device - Google Patents
Thermocouple for furnace slag viscosity measurement device Download PDFInfo
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- CN203519189U CN203519189U CN201320622145.6U CN201320622145U CN203519189U CN 203519189 U CN203519189 U CN 203519189U CN 201320622145 U CN201320622145 U CN 201320622145U CN 203519189 U CN203519189 U CN 203519189U
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- protection tube
- tube head
- protection
- thermocouple
- thermopair
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Abstract
The utility model provides a thermocouple for a furnace slag viscosity measurement device, which comprises a protection tube, a thermocouple wire, a porcelain tube for fixing the thermocouple wire and a fastener for fixing the couple. The thermocouple wire is inserted into the protection tube; the protection tube comprises a protection tube head and a protection sleeve; one end of the protection tube head is closed and the other end is opened; the protection tube head and the protection sleeve are connected in a direct insertion mode or in a mode of insertion after uniformly applying high-temperature glue; the protection sleeve is made of corundum or high-alumina material; a platinum metal-coated layer or an uncoated layer is provided outside the protection tube head; the opening end of the tube head is provided with a retracted slight mouth to be connected with the protection sleeve; and the angle of the slight mouth is 3 DEG to 5 DEG. The protection tube head can be replaced, and only the protection tube head is replaced when the protection tube is damaged, thereby reducing material consumption cost and the replacement difficulty; and the manufacturing cost is lower, the tube diameter and the size are basically unchanged, and the use range and the use condition of the thermocouple are not influenced.
Description
Technical field
The utility model belongs to temperature detection field, relates in particular to the high-temperature service temperature thermocouples such as slag viscosity determinator.
Background technology
The viscosimetric analysis of metallurgical slag is a kind of basic skills of investigating Performance of Slag, and all kinds of slags especially the agent of erosion of high alkalinity vessel slag is very strong, when measuring the operations such as slag viscosity curve, because minute is longer, easily sensing equipment inner chamber facility is damaged as thermopair, alundum tube etc.
Slag viscosity instrument generally adopts Type B thermopair, and its long-term serviceability temperature is 1600 ℃, 1800 ℃ of short-terms.Can in oxidisability or neutral atmosphere, use; and the vertical thermometric mode of the most employing of viscosity apparatus thermopair used; thermopair only has position, thermometric termination in high-temperature region, and its outside corundum protection tube damage frequency is higher, has directly affected thermometric accuracy and equipment operation ratio.Its reason has two aspects, and the one, the protection tube of thermometric end regions is because extraneous difference variation is concentrated and very easily cracked compared with large stress, and the 2nd, be easily subject to the erosion of the unrestrained slag charge in top and damage.
Patent < < thermopair > > (CN90213688.7); a kind of thermopair is disclosed; its content is: adopt nickel chromium triangle silicon-nickel silicon alloy silk to make thermo wires; cover outside the corundum or high alumina protection tube of porcelain tube, then add a silit recrystallization protection tube.While is furnished with the stainless steel heating muff of heat-resisting liner in silit recrystallization protection tube and terminal box joint.This patent is thought can avoid the cracked of protection tube; the erosion that has completely cut off other raw material; but outer join the thermometric caliber that silit recrystallization protection tube has obviously increased thermopair, and cost obviously increases, lower for actual use value of mini type high temperature equipment such as slag viscosity instrument.
Patent < < measurement temp of corrosive mediums long-life thermocouple > > (CN92210267.8) discloses and has changed the stainless steel list protection tube of thermocouple wire overcoat into two protection tubes; its internal layer protection tube is the high temperature resistant protection tube of white fused alumina; skin is titanium protection tube; hot junction sealing; cold junction is external screw joint; at gap filling asbestos rope and the water glass of titanium pipe and white fused alumina pipe cold junction, play sealing and fixation simultaneously.This patent is thought can improve thermopair serviceable life, avoids corrosion, the accident probability that reduces replacement frequency and cause due to replacing.But titanium pipe price is higher, obviously increase caliber simultaneously, be not suitable for being equally used in the mini type high temperature equipment such as slag viscosity instrument.
Therefore; in prior art all there is with thermopair the problem that protection tube damage frequency is high, spare part Master Cost is high in slag viscosity determinator; and thermopair majority after improving also exist improve after caliber, volume increase obviously; improve the problems such as process costs is too high, limited and improved the feasibility that thermopair is promoted the use of.
Utility model content
The purpose of this utility model is to overcome the problems referred to above and provides a kind of slag viscosity determinator thermopair with deficiency, reduces the damage frequency of thermopair and changes difficulty, serviceable life and the equipment operation ratio of raising thermopair.
A kind of slag viscosity determinator thermopair; comprise protection tube, thermo wires, fixedly porcelain tube and the fixing securing member of galvanic couple of thermo wires; thermo wires inserts in protection tube; protection tube comprises protection tube head and protective casing; the first end sealing of protection tube; the other end is openend, and protection tube head is connected by direct-insert mode with protective casing, or the mode of insertion again of evenly smearing after high-temp glue connects.
Protection tube is that corundum or high alumina refractories process, and protection tube head has platinum coating outward or without coating.
The openend of protection tube head inside contracts slightly mouth and is connected with protection pipe box, and while take slightly mouth connection, slightly bicker degree is 3 °～5 °.
The beneficial effects of the utility model are:
The utility model, because protection tube head is replaceable, only need be changed protection tube head when protection tube damages, and has reduced material consumption expense and has changed difficulty.And protection tube head is while scribbling platinum coating outward, can obviously strengthen the slag corrosion resistance ability of protection tube head, and then improve the serviceable life of thermometric galvanic couple.And manufacturing cost of the present utility model is lower, caliber, volume are substantially unchanged, do not affect usable range and the service condition of thermopair, have larger popularizing value in industry.
Accompanying drawing explanation
Fig. 1 is the slightly structural representation of mouthful connected mode of the utility model.
Fig. 2 is the structural representation of the straight mouthful connected mode of the utility model.
In figure, 1 is protection tube head, and 2 be platinum coating, and 3 be protective casing, and 4 be thermo wires, and 5 is porcelain tube, and 6 is securing member, and 7 is mouth slightly, and 8 is mouth directly.
Embodiment
As shown in Figure 1; a kind of slag viscosity determinator thermopair; comprise protection tube, thermo wires 4, fixedly porcelain tube 5 and the fixing securing member 6 of galvanic couple of thermo wires 4; thermo wires 4 inserts in protection tube; protection tube comprises protection tube head 1 and protective casing 3, the 1 one end sealing of protection tube head, and the other end is openend; protection tube head 1 is connected by direct-insert mode with protective casing 3, or the mode of insertion again of evenly smearing after high-temp glue connects.
Protection tube is that corundum or high alumina refractories process, and protection tube head 1 is outer has platinum coating or without coating.
The openend of protection tube head 1 inside contracts slightly mouth 7 and is connected with protection pipe box 3, and while take slightly mouth connection, slightly mouthful 7 angles are 3 °～5 °.
Below by embodiment, the utility model is further described.
Embodiment 1:
Corundum with 99.95% is made protection tube; and in the platinum coating of protecting tube head 1 outside surface spraying 0.2mm; protective casing 3 is connected with the slightly mouthful mode of 1 of tube head of protection with 4 °; Shao Kou 7th district evenly scribble high-temperature seal adhesive; using double platinum rhodium silk as thermo wires 4; after fixing by securing member 6, make slag viscosity sensing equipment temperature thermocouple, after fixing with the mode vertical direction of standing upside down, use.If in use occur, protection tube head 1 damages, and protection tube head 1 is unloaded, and more renews the rear continuation of protection tube head 1 and uses.
Embodiment 2:
With 99.95% corundum, make protection tube head 1; with 85.00% high alumina refractories, make protective casing 3; protection tube head 1 is outer without coating; protective casing 3 is connected in straight mouthful of mode with 1 of protection tube head; using double platinum rhodium silk as thermo wires 4; after fixing by securing member 6, make slag viscosity sensing equipment temperature thermocouple, after fixing with the mode vertical direction of standing upside down, use.If in use occur, protection tube head 1 damages, and protection tube head 1 is unloaded, and more renews the rear continuation of protection tube head 1 and uses.
The utility model, because protection tube head 1 is replaceable, only need be changed protection tube head 1 when protection tube damages, and has reduced material consumption expense and has changed difficulty.Improve the serviceable life of thermometric galvanic couple.And manufacturing cost of the present utility model is lower, caliber, volume are substantially unchanged, do not affect usable range and the service condition of thermopair, have larger popularizing value in industry.
Claims (3)
1. a slag viscosity determinator thermopair; comprise protection tube, thermo wires (4), fixedly porcelain tube (5) and the fixing securing member of galvanic couple (6) of thermo wires (4); thermo wires (4) inserts in protection tube; it is characterized in that: described protection tube (3) comprises protection tube head (1) and protective casing (3); the sealing of described protection tube head (1) one end; the other end is openend; described protection tube head (1) is connected by direct-insert mode with protective casing (3), or evenly smears the mode of inserting again after high-temp glue and connect.
2. slag viscosity determinator thermopair according to claim 1, is characterized in that, described protective casing (3) is corundum or high alumina refractories, and described protection tube head (1) is outer has platinum coating or without coating.
3. according to slag viscosity determinator thermopair described in claim 1 or 2, it is characterized in that, the openend of described protection tube head (1) inside contracts slightly mouthful (7) and is connected with protection pipe box (3), and while take slightly mouth connection, slightly mouthful (7) angle is 3 °～5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622145.6U CN203519189U (en) | 2013-10-10 | 2013-10-10 | Thermocouple for furnace slag viscosity measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622145.6U CN203519189U (en) | 2013-10-10 | 2013-10-10 | Thermocouple for furnace slag viscosity measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203519189U true CN203519189U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320622145.6U Expired - Fee Related CN203519189U (en) | 2013-10-10 | 2013-10-10 | Thermocouple for furnace slag viscosity measurement device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203519189U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445322A (en) * | 2015-12-02 | 2016-03-30 | 东北大学 | Method for measuring interface heat transfer coefficient under pressurization condition |
| CN106404206A (en) * | 2016-11-07 | 2017-02-15 | 宁波精丰测控技术有限公司 | Ceramic armored high-temperature thermocouple and manufacturing method thereof |
| CN107356349A (en) * | 2017-07-03 | 2017-11-17 | 重庆大学 | The device that a kind of thermocouple is combined with viscosity gauge head |
| CN108484169A (en) * | 2018-03-26 | 2018-09-04 | 甘肃新西北碳素科技有限公司 | Carbon/carbon material protective cover for thermocouple production method for aluminium melting furnace |
-
2013
- 2013-10-10 CN CN201320622145.6U patent/CN203519189U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445322A (en) * | 2015-12-02 | 2016-03-30 | 东北大学 | Method for measuring interface heat transfer coefficient under pressurization condition |
| CN106404206A (en) * | 2016-11-07 | 2017-02-15 | 宁波精丰测控技术有限公司 | Ceramic armored high-temperature thermocouple and manufacturing method thereof |
| CN107356349A (en) * | 2017-07-03 | 2017-11-17 | 重庆大学 | The device that a kind of thermocouple is combined with viscosity gauge head |
| CN107356349B (en) * | 2017-07-03 | 2019-04-26 | 重庆大学 | A kind of device of thermocouple in conjunction with viscosity gauge head |
| CN108484169A (en) * | 2018-03-26 | 2018-09-04 | 甘肃新西北碳素科技有限公司 | Carbon/carbon material protective cover for thermocouple production method for aluminium melting furnace |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20191010 |