CN209639864U - Fixed point and black matrix double-purpose standard based on liquid constant temperature source - Google Patents
Fixed point and black matrix double-purpose standard based on liquid constant temperature source Download PDFInfo
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- CN209639864U CN209639864U CN201920606727.2U CN201920606727U CN209639864U CN 209639864 U CN209639864 U CN 209639864U CN 201920606727 U CN201920606727 U CN 201920606727U CN 209639864 U CN209639864 U CN 209639864U
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- fixed point
- black matrix
- thermostat
- fixed
- constant temperature
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Abstract
The utility model discloses a kind of fixed points based on liquid constant temperature source and black matrix double-purpose standard, including thermostat, it is divide into upper part and lower part in the thermostat, the cavity that left and right two parts are connected is divided by longitudinal baffle in top half, one of them is stir chamber, another is working chamber, and agitating device is provided in stir chamber, and the fixed device of fixed point is provided in working chamber；One side is horizontally disposed in lower half portion the blackbody radiation source extended to inside thermostat, and blackbody cavity is equipped in blackbody radiation source, and the periphery of blackbody radiation source is provided with cyclone in the thermostat, and cyclone is by the motor driven that is set to outside thermostat.It is set to meet the reproduction application of fixed point and black matrix, the device is easy to operate, convenient disassembly, degree of safety are high, can apply convenient for user.
Description
Technical field
The utility model relates to a kind of temperature correction auxiliary device, especially a kind of fixed point based on liquid constant temperature source with
Black matrix double-purpose standard.
Background technique
Fixed point device is set as tracing to the source for current temperature measurement with the key source of transmission of quantity value with black body radiation source device
Standby, research and development course runs through the entire development history of temperature scale, forms a series of complete package units so far.Contact with
Non-contact temperature measuring field, fixed point and blackbody radiation source are in the reproduction of key temperatures point and indexing and the calibration side of thermometer
Face is playing very important effect.
Fixed point furnace and black matrix furnace apparatus are used for the heating of fixed point container and blackbody chamber, are the reproduction of these fixed points
Journey provides good thermal field, therefore the uniformity of fixed point furnace temperature field is horizontal by the reproduction for directly affecting fixed point and black matrix.Limit
The key factor of the reproduction of fixed point and blackbody radiation source key temperatures point processed is exactly fixed point furnace and black matrix furnace apparatus, current state
The three-stage fixed point temperature control furnace that the most widely used fixed point furnace and black matrix furnace apparatus all use on border, temperature-controlled precision are
0.1 DEG C, thermal field uniformity is mostly at 0.1 ~ 0.2 DEG C.The thermal field ring that can not be provided for the reproduction of fixed point and blackbody radiation source
Border, also cannot achieve high-caliber fixed point reproduction, and accuracy is lower.
Utility model content
Purpose of the utility model is to overcome the deficiencies of the above prior art and provide a kind of consolidating based on liquid constant temperature source
Fixed point and black matrix double-purpose standard, make it meet the reproduction application of fixed point and black matrix, the device is easy to operate, convenient disassembly,
Degree of safety is high, can apply convenient for user.
To achieve the above object, the utility model adopts the following technical solutions:
A kind of fixed point based on liquid constant temperature source and black matrix double-purpose standard, including thermostat, in the thermostat point
For upper and lower two parts, the cavity that left and right two parts are connected is divided by longitudinal baffle in top half, one of them is stirring
Chamber, another is working chamber, and agitating device is provided in stir chamber, and the fixed device of fixed point is provided in working chamber；Lower half
One side is horizontally disposed in point the blackbody radiation source extended to inside thermostat, is equipped with blackbody cavity, institute in blackbody radiation source
The periphery for stating blackbody radiation source in thermostat is provided with cyclone, and cyclone is by the motor driven that is set to outside thermostat.
The upper end of the fixed device of the fixed point is completely cut off by heat-barrier material and the inner wall of working chamber upper end, and fixed solid point
The inner wall for determining device upper end-face edge and working chamber upper end is tightly connected, and the fixed device lower end of fixed point is pacified by the support rod of bending
In cavity shell loaded on working chamber lower end, the fixed device positioned inside of fixed point has fixed point case.
The fixed device upper end-face edge of the fixed point is connect with the inner wall of working chamber upper end by laser welded seal.
The fixed device of the fixed point includes the vertical bar of three parallel longitudinal directions setting, is fixed on vertical bar multiple disposed in parallel
Support ring, vertical bar top is fixed with flange, in addition to the support ring of bottommost, the internal diameter of remaining support ring and the internal diameter phase of flange
Deng, the center of circle of support ring and flange on the same line, the internal diameter of the support ring of bottommost is less than remaining support ring internal diameter, uses
In the fixed point case that support is placed in support ring, the bottom of vertical bar is connect with support rod, support rod ends bent peace
In cavity shell loaded on working chamber lower end.
The fixed point case includes metal shell, and interior of shell is equipped with crystal vessel, places in crystal vessel high
Pure fixed point metallic object.
The fixed point case further includes the thermometer trap for being set to crystal vessel top, is placed in thermometer trap
Thermometer.
Thermal insulation board is provided between the thermometer trap and the fixed device outer wall of fixed point.
The metal shell uses, and there is extremely strong corrosion resistant high temperature alloy GH718 to be prepared.
The thermostat is salt bath thermostat, and the temperature-controlled precision of the salt bath thermostat is 0.01 DEG C, and vertical thermal field is uniform
Property is 20mK；The temperature upper limit of the high temperature thermal field of the salt bath thermostat is 700 DEG C.
The agitating device includes the motor being mounted on salt bath thermostat and is installed on stirring on its power output rod
Mix blade.Stirrer paddle is configured, the flowing of internal high temperature medium can be promoted, guarantee the uniformity of thermal field.
The shell of the blackbody radiation source is made by metal alloy.Can effectively withstanding grooves intracavitary medium it is right during expansion
Black matrix chamber enclosure stress, avoids black body radiation source device from being destroyed.The metal shell is high temperature resistant, anti-oxidant, corrosion-resistant gold
Category is made, and makes extraneous medium from pollution.
The black matrix cavity front end face is tapered, cavity inner surface frosted processing, and is coated with 2mm thickness equadag coating.
Thermal insulation material is filled between the inside and outside wall of salt bath thermostat.On the one hand thermal insulation material can reduce heat loss,
On the other hand the personal injury caused by can preventing due to whole device skin temperature is higher to user.
In the utility model, salt bath thermostat using heat fusing after liquid salt as medium, additional mechanical stirring, this mistake
The high temperature thermal field uniformity of journey can compare favourably with thermostatic oil bath, and temperature upper limit can reach 700 DEG C.Cyclone makes salt bath thermostat
Interior medium circulates at high temperature, improves the uniformity of the thermal field of blackbody cavity, is distributed the thermal field of its isothermal region more
Uniformly, to promote the emissivity of blackbody radiation source.Black body radiation source device can be put into wherein, be guaranteed black in salt bath thermostat
Body radiation source can thermally equivalent, and then provide uniform thermal field for the calibration process of blackbody radiation source.Due in salt bath thermostat
The characteristic that there is the medium in portion high temperature melting, low temperature to solidify, it is desirable that the black body radiation source device being put into vallecular cavity allows for holding
High voltage load is carried, therefore black body radiation source device uses metal shell.Since thermostat interior media is inorganic salts, medium is dirty
The uniformity that dye may cause thermal field is interfered, and medium most easy to pollute is the black body radiation source device being in direct contact with it
Metal shell, metal occur to aoxidize the oxide shedding of Fang Yinghou at high temperature, can directly result in the uneven of thermal field in vallecular cavity,
And then the reproduction for influencing radiation source is horizontal；The degree of oxidation of metal shell is deepened, and the rupture that may cause blackbody chamber is excessive, this will
Directly jeopardize the personal safety of Field Force, therefore selects corrosion-resistant, oxidation resistant high-temperature alloy material.
The temperature-controlled precision of the thermostat temperature source device (i.e. salt bath thermostat) of the utility model is promoted to 0.01 DEG C, 700
DEG C when thermal field uniformity can be promoted to 20mK, be already an important breakthrough compared to current fixed point stem body furnace apparatus.
Fixed point container is placed in the liquid tank that the thermal field uniformity is 20 mK, the level of fixed point will have huge promotion.
Salt bath constant temperature slot device is sealed processing, since fixed point container is the core of entire fixed point device, guarantees
It is the most important thing that fixed point, which is not destroyed, therefore fixed point receptacle fixture is arranged inside vallecular cavity, it is ensured that fixed point holds
Device device will not be destroyed because of vibration.Fixed point case can be put into the heat transfer circulated therebetween by fixed device
Medium can guarantee fixed point device can thermally equivalent, and then provide uniform thermal field for the reproduction process of fixed point.
The characteristic solidified due to salt bath interior media high temperature melting, low temperature, it is desirable that the fixed point device being put into vallecular cavity must
High voltage load must can be carried, therefore the shell of fixed point case uses metal shell.
Since salt bath interior media is inorganic salts, medium is contaminated easily to cause the uniformity of thermal field to be interfered, most easily
Pollution medium is the fixed point case metal shell being in direct contact with it, and metal occurs to aoxidize Fang Yinghou at high temperature
Oxide shedding, the uneven of thermal field in vallecular cavity can be directly resulted in, and then the reproduction for influencing fixed point is horizontal；Metal shell
Degree of oxidation is deepened, and the rupture that may cause fixed point is excessive, this will directly jeopardize the personal safety of Field Force.Therefore benefit is needed
Fixed point device is protected with the metal-back of corrosion-and high-temp-resistant.
Compared with prior art, the utility model has the beneficial effects that
1. the utility model makes full use of the excellent thermal field index of existing salt bath thermostat, fixed point is mutually tied with salt bath
It closes, by providing better thermal field uniformity using liquid constant temperature temperature source device for black body radiation source device and fixed point reproduction
Index, to reach high-caliber fixed point reproduction.
2. the utility model fills fixed point container and blackbody radiation source using high temperature resistant, anti-oxidant, corrosion resistant metal
Protection is set, ensure that the safety of black body radiation source device and fixed point, while also ensuring fixed point and blackbody radiation source reproduction
The smoothly progress of process.
Fixed point receptacle fixture is arranged in 3, the utility model inside vallecular cavity, it is ensured that fixed point case will not
It is destroyed because of vibration.
Detailed description of the invention
Fig. 1 is the overall structure of the utility model one embodiment；
Fig. 2 is fixed point receptacle fixture structural schematic diagram；
Wherein, 1. salt bath thermostat, 2. working chambers, 3. thermometer traps, 4. fixed point cases, 5. stir chambers, 6. stir
Blade is mixed, the fixed device of 7. fixed points, 8. support rods, 9. blackbody cavities, 10. cyclones, 11. motors, 12. partitions, 13. is perpendicular
Bar, 14. support rings, 15. flanges, 16. blackbody radiation sources.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the utility model enforceable qualifications, therefore not
Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are practical new not influencing this
Under the effect of type can be generated and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain and can contain
In the range of lid.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term,
It is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
As shown in Figure 1, fixed point and black matrix double-purpose standard based on liquid constant temperature source, including salt bath thermostat 1, fixation
Point case 4 and its fixed device 7, blackbody cavity 9, cyclone 10, motor 11.It is divided into the salt bath thermostat 1 up and down
Two parts divide the cavity being connected for left and right two parts by longitudinal baffle 12 in top half, one of them is stir chamber 5,
Another is working chamber 2, is provided with agitating device in stir chamber 5, and the fixed device 7 of fixed point is provided in working chamber 2；Lower half
One side is horizontally disposed in point the blackbody radiation source 16 extended to inside salt bath thermostat 1, is equipped in blackbody radiation source 16 black
Body cavity 9, the periphery of blackbody radiation source 16 is provided with cyclone 17 in the salt bath thermostat 1, and cyclone 10 is by being set to salt
The motor 11 outside thermostat 1 is bathed to drive.Cyclone 10 makes the medium in salt bath thermostat 1 at high temperature can be in cavity
Interlayer internal circulation flow between shell and cavity shell improves the uniformity of the thermal field of blackbody cavity 9, makes the thermal field of its isothermal region
Be distributed it is more uniform, to promote the emissivity of blackbody radiation source.
The fixed device 7 of fixed point is provided in working chamber 2, fixed 7 upper end of device of fixed point passes through heat-barrier material and work
The inner wall of 2 upper end of chamber completely cuts off, and fixed 7 upper end-face edge of device of fixed point and the inner wall of 2 upper end of working chamber are close by laser welding
Envelope connection, fixed 4 lower end of device of fixed point are installed in the cavity shell of 2 lower end of working chamber by support rod 8, and fixed point is fixed
7 lower end of device is welded using support rod 8 to increase the bearing load ability of fixed device, and fixed point is fixed inside device 7
It is mounted with fixed point case 4.
As shown in Fig. 2, the fixed device 7 of fixed point includes the vertical bar 13 of three parallel longitudinal directions setting, fixation is more on vertical bar 13
A support ring disposed in parallel 14 is fixed with flange 15 at the top of vertical bar 13, in addition to the support ring 14 of bottommost, remaining support ring 14
Internal diameter and flange 15 internal diameter it is equal, the center of circle of support ring 14 and flange 15 on the same line, the support ring of bottommost
14 internal diameter is less than remaining 14 internal diameter of support ring, is used to support the fixed point case 4 being placed in support ring 14.
The fixed point case 4, including metal shell, metal shell, which uses, has extremely strong corrosion resistant high temperature alloy
GH718 is prepared, and interior of shell is equipped with crystal vessel, places high-purity fixed point metallic object in crystal vessel.Fixed point container
Device 4 further includes the thermometer trap 3 for being set to crystal vessel top, is placed with thermometer in thermometer trap 3.The thermometer trap
Thermal insulation board is provided between 3 and fixed 7 outer wall of device of fixed point.
The temperature-controlled precision of salt bath thermostat 1 is 0.01 DEG C, and vertical thermal field uniformity is 20mK；The salt bath thermostat 2
The temperature upper limit of high temperature thermal field is 700 DEG C.
Agitating device includes the motor being mounted on salt bath thermostat 1 and the agitating paddle that is installed on its power output rod
Leaf 6.Stirrer paddle 6 is configured, the flowing of internal high temperature medium can be promoted, guarantee the uniformity of thermal field.
The shell of blackbody radiation source 16 is made by metal alloy.Can effectively the intracavitary medium of withstanding grooves during expansion to black
Body cavity shell stress, avoids black body radiation source device from being destroyed.The metal shell is high temperature resistant, anti-oxidant, corrosion resistant metal
It is made, makes extraneous medium from pollution.Blackbody cavity 9 be using conical cavity body made of metal alloy, cavity inner surface into
Row frosted processing, and the equadag coating after 2mm is applied, inner wall surface sprays high emissivity coating, reaches requirement.
Thermal insulation material is filled between 1 inside and outside wall of salt bath thermostat.On the one hand thermal insulation material can reduce heat loss, another
Personal injury to user caused by aspect can prevent due to whole device skin temperature is higher.
Due to the characteristic that there is the heat transfer medium inside salt bath high temperature melting, low temperature to solidify, this requires be put into vallecular cavity
Fixed point device can carry high voltage load, therefore fixed point shell uses metal shell.Using the gold of corrosion-and high-temp-resistant
Belong to shell, can effective withstanding grooves intracavitary media more fixed point shell bring stress during expansion, avoid fixed point device from being broken
It is bad.Metal shell is made of high temperature resistant, anti-oxidant, corrosion resistant metal, and it is contaminated also to can effectively avoid heat transfer medium in vallecular cavity.
Since fixed point container and blackbody chamber are the cores of whole device, guarantee that fixed point container and blackbody chamber are not destroyed
It is the most important thing, therefore arranges fixed point container and the fixed device of blackbody chamber inside vallecular cavity, it is ensured that fixed point case
It will not be destroyed because of vibration.Fixed point container and blackbody chamber fix being put into fixed point container and blackbody chamber device of device
Period, the heat transfer medium circulated can guarantee fixed point device can thermally equivalent, and then provided for the reproduction process of fixed point
Uniform thermal field.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but it is not practical new to this
The limitation of type protection scope, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (10)
1. a kind of fixed point based on liquid constant temperature source and black matrix double-purpose standard, characterized in that including thermostat, the constant temperature
It is divide into upper part and lower part in device, the cavity that left and right two parts are connected is divided by longitudinal baffle in top half, one of them
For stir chamber, another is working chamber, and agitating device is provided in stir chamber, and the fixed device of fixed point is provided in working chamber；
One side is horizontally disposed in lower half portion the blackbody radiation source extended to inside thermostat, and it is empty to be equipped with black matrix in blackbody radiation source
Chamber, the periphery of blackbody radiation source is provided with cyclone in the thermostat, and cyclone is driven by being set to the motor outside thermostat
It is dynamic.
2. fixed point and black matrix double-purpose standard as described in claim 1 based on liquid constant temperature source, characterized in that described solid
The upper end for pinpointing fixed device is completely cut off by heat-barrier material and the inner wall of working chamber upper end, and the fixed device upper end-face edge of fixed point
It is tightly connected with the inner wall of working chamber upper end, the fixed device lower end of fixed point is installed on the cavity of working chamber lower end by support rod
On shell, the fixed device positioned inside of fixed point has fixed point case.
3. fixed point and black matrix double-purpose standard as described in claim 1 based on liquid constant temperature source, characterized in that described solid
Fixed device upper end-face edge is pinpointed to connect with the inner wall of working chamber upper end by laser welded seal.
4. fixed point and black matrix double-purpose standard as described in claim 1 based on liquid constant temperature source, characterized in that described solid
The vertical bar that fixed device includes the setting of three parallel longitudinal directions is pinpointed, fixes multiple support rings disposed in parallel, vertical bar top on vertical bar
Portion is fixed with flange, and in addition to the support ring of bottommost, the internal diameter of remaining support ring and the internal diameter of flange are equal, in support ring and method
On the same line, the internal diameter of the support ring of bottommost is less than remaining support ring internal diameter in the blue center of circle, is used to support and is placed in branch
Fixed point case in pushing out ring.
5. fixed point and black matrix double-purpose standard as claimed in claim 4 based on liquid constant temperature source, characterized in that described solid
Fixed point case includes metal shell, and interior of shell is equipped with crystal vessel, places high-purity fixed point metallic object in crystal vessel.
6. fixed point and black matrix double-purpose standard as claimed in claim 4 based on liquid constant temperature source, characterized in that described solid
Pinpointing case further includes the thermometer trap for being set to crystal vessel top, is placed with thermometer in thermometer trap；The temperature
Thermal insulation board is provided between degree meter trap and the fixed device outer wall of fixed point.
7. fixed point and black matrix double-purpose standard as described in claim 1 based on liquid constant temperature source, characterized in that the perseverance
Warm device is salt bath thermostat, and the temperature-controlled precision of the salt bath thermostat is 0.01 DEG C, and vertical thermal field uniformity is 20mK；The salt
The temperature upper limit for bathing the high temperature thermal field of thermostat is 700 DEG C.
8. fixed point and black matrix double-purpose standard as claimed in claim 7 based on liquid constant temperature source, characterized in that the salt
It bathes and is filled with thermal insulation material between thermostat inside and outside wall.
9. fixed point and black matrix double-purpose standard as claimed in claim 7 based on liquid constant temperature source, characterized in that described to stir
Mix the stirrer paddle that device includes the motor being mounted on salt bath thermostat and is installed on its power output rod.
10. fixed point and black matrix double-purpose standard as described in claim 1 based on liquid constant temperature source, characterized in that described
The shell of blackbody radiation source is made by metal alloy, and the blackbody cavity front end face is tapered, at cavity inner surface frosted
Reason, and it is coated with 2mm thickness equadag coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920606727.2U CN209639864U (en) | 2019-04-29 | 2019-04-29 | Fixed point and black matrix double-purpose standard based on liquid constant temperature source |
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| CN201920606727.2U CN209639864U (en) | 2019-04-29 | 2019-04-29 | Fixed point and black matrix double-purpose standard based on liquid constant temperature source |
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| CN209639864U true CN209639864U (en) | 2019-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017918A (en) * | 2019-04-29 | 2019-07-16 | 济南长峰致远仪表科技有限公司 | Fixed point and black matrix double-purpose standard based on liquid constant temperature source |
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2019
- 2019-04-29 CN CN201920606727.2U patent/CN209639864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017918A (en) * | 2019-04-29 | 2019-07-16 | 济南长峰致远仪表科技有限公司 | Fixed point and black matrix double-purpose standard based on liquid constant temperature source |
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