CN2103133U - Metal ceramics thermocouple combined quick thermometric gun - Google Patents
Metal ceramics thermocouple combined quick thermometric gun Download PDFInfo
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- CN2103133U CN2103133U CN 91201692 CN91201692U CN2103133U CN 2103133 U CN2103133 U CN 2103133U CN 91201692 CN91201692 CN 91201692 CN 91201692 U CN91201692 U CN 91201692U CN 2103133 U CN2103133 U CN 2103133U
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- thermopair
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Abstract
The utility model relates to a metal ceramics thermocouple combined quick thermometric gun, belonging to a high-temperature measuring instrument for industries. The utility model is the metal ceramics thermocouple combined quick thermometric gun made of metal wires (rods). The metal ceramics thermocouple combined quick thermometric gun can measure the high temperature of 0 to 2000 DEG C, and can be reused 100 to 300 times. The metal ceramics thermocouple combined quick thermometric gun comprises a thermometric probe, a thermal insulating closing plug, a connector, a thermometric gun rod, and a temperature indicator. The metal ceramics thermocouple combined quick thermometric gun better solves the problems of the fabrication process of the selection of materials of thermocouples, the protection of the thermocouples, and the thermal insulation of the hot end and the cold end of a thermometric gun. Thus, the utility model has the advantages of good performance, long service life, low cost, easy use, etc.
Description
The utility model is the thermopair combined type quick temperature measurement device that a kind of tinsel (rod) is made.Can measure 1300 ℃～2000 ℃ high temperature fast, and can be repeatedly used, it belongs to industrial high temperature measurement instrument.
Metallurgy and mechanical industry very need the high temperature measurement technology, force the high temperature measurement technology to develop rapidly, have made many high temperature measurement instrument and meters at present both at home and abroad, but have all run into several outstanding problems.The first, the selection of thermopair and manufacturing; It two is, the oxidation in the use under the protection of thermopair, particularly high temperature, and it three is heat insulation between the hot junction (and high temperature measured object contact jaw) of temperature measuring equipment and the cold junction (and link of temperature indicating instrument).In recent years, preceding two technical matterss had obtained obvious achievement after deliberation, and had adopted." the metallic ceramics W-Re combined type quick temperature measurement rifle " of my development, emphasis solves this two technical matterss exactly.This achievement is declared utility model patent April 19 nineteen ninety to Patent Office of the People's Republic of China, and application number is 90204855.4.But till now, also there is certain problem in the heat-insulating problem of high temperature thermo detector hot junction and cold junction.
The utility model is exactly to improve on the basis of above-mentioned patent, it has selected for use " sepiolite cashmere " to be heat-barrier material, and it is the material that China makes voluntarily, once is the material of manufacturing chafing dish for feudal emperor, 1700 ℃ of naked lights of ability are very good through testing its heat-proof quality.With metal tungsten wire (nickel chromium triangle--nisiloy) the combined type quick temperature measurement rifle that it is done heat-barrier material redesign and manufactures, can survey 1300 ℃～2000 ℃ high temperature, reusable 100 times～300 times of temperature-measuring gun, existing level head and shoulders above.
The utility model also improves in the selection of thermopair, selects for use W-Re 3-W-Re 25 to make and measures 0～2000 ℃ thermopair, and it has the advantage of limit for height on the thermometric.Select for use nickel chromium triangle-nisiloy to make the another kind of thermopair of measuring 0～1300 ℃, its thermometric upper limit is low, but has the advantage that the cost of material is low and the life-span is long.
Main composition of the present utility model as shown in Figure 1, it comprises temperature probe (1), heat insulation sealing plug (claiming emperor's sealing plug again) (2), connector (3), thermometric barral of a gun (4) and temperature indicator five parts such as (5).
The utility model improves the structure of temperature probe, connector and barral of a gun etc., makes it have thermometric fast (being lower than for 1 second), heat insulation good, the advantage such as the life-span is long, easy to use of cool and heat ends.
Introduce structure of the present utility model and principle of work in detail below in conjunction with embodiment.
(1) embodiment 1, metallic ceramics W-Re combined type quick temperature measurement rifle.
This temperature-measuring gun can be surveyed 0 ℃～2000 ℃ temperature, can reuse 100 times, and its main composition is divided into five parts as shown in Figure 1 as previously mentioned.
1. present embodiment first temperature probe (1), its detail drawing is seen Fig. 2.Form comprising ten parts such as Wolfram rhenium heat electric couple (11), metal ceramic tube (12), positive and negative thermoelectric wire (13), special-shaped diplopore porcelain tube (14), filling agent (15), partiting thermal insulation section (16), diplopore porcelain tube (17), the oxygen filling agent (18) that disappears, positive and negative electrode terminal (19) and heat-insulating layer (10).
In the present embodiment, thermopair (11) is to make with tungsten-rhenium alloy, and wherein W-Re 3 is that positive pole is bar-shaped, W-Re 25 is thread for negative pole, and thread negative pole tightly is wrapped on the bar-shaped positive pole, forms thermopair.The protective cover of its outside is metal ceramic tube (12), passes to thermopair as early as possible for making heat, and the top of thermopair and both sides are close to the ceramic vessel wall (see figure 2) and are had at least contact with tube wall at 3 when manufacturing.Fill up oxygen eliminating agent (18) around the thermopair, oxygen eliminating agent is with crome metal, molybdenum powder and dag potpourri, has the fabulous oxygen effect that disappears.The positive and negative polar filament (13) of thermopair passes porcelain tube (17) and (14) and guides probe terminal positive and negative electrode terminal (19) into.
The batching of metallic ceramics protection tube (12) and manufacture all very fastidious in the present embodiment; it is 99.9% metal molybdenum powder and purity greater than 99% zirconia, magnesium oxide, aluminium oxide that its batching is selected chemical purity for use; and be added with a spot of chromium powder and the strong rare earth element of other inoxidizabilitys; mixed batching behind the hydrostatic profile, forms through 2000 ℃ of high temperature sinterings under argon shield again; the protection tube end is a palilate; tube wall as thin as a wafer, it is good that it has intensity, the end advantage such as fast, anti-oxidant of conducting heat.The filling agent (15) of the inner dress of protection tube based on the insulating material of carbon fiber, has the good oxygen performance that disappears.
In the present embodiment, only in temperature probe, just adopted twice provision for thermal insulation.The one, between two porcelain tubes, be added with heat-insulating layer (10); The 2nd, be added with partiting thermal insulation section (16) at the probe end, they all are to be that the material of leading is made with sepiolite cashmere.The former (10) are the powder packing material, and the latter (16) then is that sepiolite cashmere and alum scholar cement mixing are made special-shaped tubular body (see figure 2).End through twice heat insulation back temperature probe has had good effect of heat insulation.
(2) second portion of present embodiment is a heat insulation sealing plug (2), (see figure 3).It is the plug shape body made from sepiolite cashmere and alum scholar cement temperature mixture with holes, middle hole, garden is a bit larger tham the outer wall of temperature probe (1), when probe rod was gone into connector (3), sealing plug (2) also major part entered connector (3), played the effect that envelope fastens probe (1).This sealing is plugged with good heat-blocking action.Be not only the conduction that cuts off heat, and stopped radiation and the convection current of heat to cold junction.
(3) third part of present embodiment is connector (3); in Fig. 3, this part is cut open; showed its inner structure; connector (3); contain nine parts altogether, promptly protection tube (21), the outer protection tube (22) of stainless steel, insulation thermal insulating filling (23), partiting thermal insulation fastening section (24), probe insertion passage part (25), insulation china bowl (26), insulation porcelain ring (27), both positive and negative polarity copper ring (28), thermopair are drawn lead (compensating wire) (29) outside the metallic ceramics.
The outer wall of connector (3) is connected into by metallic ceramics protection tube (21) and stainless steel protection pipe (22) two parts as seen from Figure 3.The last period, (21) further stoped heat conduction with metallic ceramics, back one section intensity that can increase connector with stainless steel.The insulation thermal insulating filling (23) of portion within it is for aluminosilicate property and aluminum oxide fire-retardent fiber felt-rug and the sea aminanthine that sinks has good partiting thermal insulation performance.
The probe insertion passage (25) that stainless-steel tube is made is equipped with in the inside of connector (3) as seen from Figure 3.Its left end is tapered tube and has notch that probe (1) is inserted by left end, and is tightened by Taper Pipe.The right-hand member of steel pipe (25) is a straight tube, is carved with screw thread in the right output port, so that be connected with barral of a gun (4).In straight tube, pack into successively from left to right insulation porcelain ring (27), the insulation china bowl (26).Two the both positive and negative polarity copper rings (28) of isolating mutually (insulation) of in china bowl (26), packing into again.After probe (1) inserted, two copper rings (28) just in time docked with anode and cathode terminals (19) (see figure 2) in the probe (1).Be welded with two extension lines on the copper ring (28), promptly be connected in and draw on the lead (29), and by the guiding of the cable (29) in the rifle weldering (4) indicating instrument (5) (see figure 1).
One section partiting thermal insulation fastened layer (24) is arranged in Fig. 3, is that raw material is made with sepiolite cashmere, and another plays heat-blocking action.
(4) the 4th part barral of a gun (4) of present embodiment and the 5th portion temperature display instrument (5) are fairly simple, so do not draw in addition, are decorated with barral of a gun (4) in figure (3), and its outer wall is the Stainless Steel pipe, and the port has screw thread and connector (3) to join.Cable (29) as extension line is housed in the pipe.Temperature indicator (5) then is the universal electric indicating instrument.
(2) embodiment 2, present embodiment, and except that selecting for use nickel network-nisiloy to do the thermopair, the material structure of other each several parts is all identical with embodiment 1, selects for use nickel chromium triangle-nisiloy to make thermopair, and its advantage has two: one is that the cost of material is low; It two is, access times are many, are not afraid of oxidation, reusable 300 times, but its temperature-measuring range is 0～1300 ℃, lower slightly than embodiment 1.
In sum, of the present utility model being characterised in that:
(1) the utility model has adopted tungsten rhenium 3-tungsten rhenium 25 and nickel chromium-nickel silicon, and the thermocouple of making is just very bar-shaped, and negative pole is thread, and tightly is wrapped on the anode bar, and this kind thermocouple not only performance is good, and the life-span is long, and material can take from domesticly, and cost is low.
(2) the utility model adopts the cermet pipe; batching is 99.9% molybdenum powder and chemical purity greater than 99% zirconia, magnesia, aluminium oxide for chemical purity and is added with a small amount of chromium powder and other anti-oxidant rare earth elements mix, sintering moulding under argon gas is protected. Its outer nipple shape that forms, tube wall has the outstanding advantages such as heat transfer is fast, anti-oxidant as thin as a wafer.
(3) the utility model adopts molybdenum powder, graphite powder and carbon fiber to do the filling oxygen eliminating agent, and thermocouple is had good protective effect, has increased service life.
(4) the utility model has adopted heat-blocking action fabulous " sepiolite cashmere " to do the insulation heat-barrier material.And carried out meticulous structural design, between " hot junction " and " cold junction " of temperature-measuring gun, be added with thermofin (10), isolation section (16), heat insulation fastening plug (2), solid section four layers of isolation such as (24) such as heat insulation, thereby obtain good effect of heat insulation.Be a great technological breakthrough.
(5) the utility model is connected with barral of a gun (4) at probe (1), connector (3), has carried out well-designed.(1) and promptly will have favorable mechanical to connect (forming a rigidity integral body) and be electrically connected the temperature variation electric signal that promptly thermopair is recorded between (4) to pass to Displaying Meter.But good again is heat insulation.The utility model is connected with (3) in (1), and the probe (1) with taper slotted-tube chucking inserts guarantees mechanical connection intensity, guarantees to be electrically connected with both positive and negative polarity copper ring and anode and cathode terminals overlap joint.Obtain good result easy to use, that contact is good and firm.Between (3), (4), then adopt and be threaded.And use the filler jam-pack.Effect is also very good.
The utility model is owing to solved the selection and the manufacture technology of thermopair preferably in a word; The protection of thermopair and anti-oxidation; Several key technical problems such as hot heat insulation between " cold " " heat " two ends so have that performance is good, the life-span is long, cost is low and plurality of advantages such as easy to use, are a kind of world-class novel high speed temperature instrumentations that has.
Claims (7)
1, metallic ceramics thermopair combined type quick temperature measurement rifle is made up of temperature probe (1), the fastening plug of partiting thermal insulation (2), connector (3), thermometric barral of a gun (4), temperature indicator (5), it is characterized in that:
1. temperature probe (1) is by thermopair (11), metal ceramic tube (12), positive and negative thermoelectric wire (13), special-shaped diplopore porcelain tube (14), filling agent (15), partiting thermal insulation section (16), diplopore porcelain tube (17), and liquid oxygen filling agent (18), anode and cathode terminals (19), heat-insulating layer (10) are formed;
2. connector (3) is gone into channel part (25), insulation china bowl (26), insulation porcelain ring (27), both positive and negative polarity copper ring (28), insulation china bowl (26), insulation porcelain ring (27), both positive and negative polarity copper ring (28), thermopair by the outer protection tube (21) of metallic ceramics, the outer protection tube (22) of stainless steel, insulation thermal insulating filling (23), partiting thermal insulation fastening section (24), probe rod and is drawn lead (29) and form;
3. temperature probe (1) all is connected with connector with inserting mode with the fastening plug of partiting thermal insulation (2);
4. thermometric barral of a gun (4) is connected with connector (3) with thread connecting mode;
5. the cable (29) in the thermometric barral of a gun is connected with temperature indicator (5);
2, metallic ceramics thermopair combined type quick temperature measurement rifle as claimed in claim 1, it is characterized in that: it is just very bar-shaped for described thermopair (11), and negative pole is thread, and tightly is wrapped on the anode bar, its top and both sides, 3 contact with metal ceramic tube (12) inwall.
3, metallic ceramics thermopair combined type quick temperature measurement rifle as claimed in claim 1; it is characterized in that: said metal ceramic tube (12) batching for the copper powder of chemical purity 99.9% and chemical purity greater than 99% zirconia, magnesium oxide, aluminium oxide; and be added with a small amount of chromium powder and other oxidation resistant rare earth element and mix cooling press moulding and 2000 ℃ of high temperature sinterings under argon shield.
4, metallic ceramics thermopair combined type quick temperature measurement rifle as claimed in claim 1 is characterized in that: the said oxygen filling agent (18) that disappears adopts molybdenum powder, dag.
5, metallic ceramics thermopair combined type quick temperature measurement rifle as claimed in claim 1 is characterized in that: it is that raw material is made that said thermofin (10), adiabatic gum (16), heat insulation fastening plug (2) and heat insulation fastening section (24) are with " sepiolite cashmere ".
6, metallic ceramics thermopair combined type quick temperature measurement rifle as claimed in claim 2, it is characterized in that: said thermopair (11) is made by tungsten-rhenium.
7, metallic ceramics thermopair combined type quick temperature measurement rifle as claimed in claim 2, it is characterized in that: said thermopair (11) is made by nickel network-nisiloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201692 CN2103133U (en) | 1991-02-02 | 1991-02-02 | Metal ceramics thermocouple combined quick thermometric gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201692 CN2103133U (en) | 1991-02-02 | 1991-02-02 | Metal ceramics thermocouple combined quick thermometric gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2103133U true CN2103133U (en) | 1992-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91201692 Granted CN2103133U (en) | 1991-02-02 | 1991-02-02 | Metal ceramics thermocouple combined quick thermometric gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2103133U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661813A (en) * | 2012-05-07 | 2012-09-12 | 昆山爱光电子有限公司 | High-precision high-stability thermoelectric conduction harness connecting device |
| CN105806504A (en) * | 2016-03-30 | 2016-07-27 | 宁波艾克威特智能科技有限公司 | High-temperature-resistant cheap metal armored thermocouple and manufacturing method thereof |
| CN106568519A (en) * | 2016-11-07 | 2017-04-19 | 宁波精丰测控技术有限公司 | Heat-resisting ceramic-armored high-temperature thermocouple and manufacturing method thereof |
| CN108561680A (en) * | 2018-05-08 | 2018-09-21 | 武汉锦隆工程技术有限公司 | Multilayer thermal resistance protection sleeve pipe and its application |
-
1991
- 1991-02-02 CN CN 91201692 patent/CN2103133U/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661813A (en) * | 2012-05-07 | 2012-09-12 | 昆山爱光电子有限公司 | High-precision high-stability thermoelectric conduction harness connecting device |
| CN105806504A (en) * | 2016-03-30 | 2016-07-27 | 宁波艾克威特智能科技有限公司 | High-temperature-resistant cheap metal armored thermocouple and manufacturing method thereof |
| CN106568519A (en) * | 2016-11-07 | 2017-04-19 | 宁波精丰测控技术有限公司 | Heat-resisting ceramic-armored high-temperature thermocouple and manufacturing method thereof |
| CN106568519B (en) * | 2016-11-07 | 2019-05-24 | 宁波精丰测控技术有限公司 | Heat resistant type ceramic armor pyrometer couple and its manufacturing method |
| CN108561680A (en) * | 2018-05-08 | 2018-09-21 | 武汉锦隆工程技术有限公司 | Multilayer thermal resistance protection sleeve pipe and its application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |