CN107505052A - High temperature big heat flow transducer when a kind of wide - Google Patents
High temperature big heat flow transducer when a kind of wide Download PDFInfo
- Publication number
- CN107505052A CN107505052A CN201710780089.1A CN201710780089A CN107505052A CN 107505052 A CN107505052 A CN 107505052A CN 201710780089 A CN201710780089 A CN 201710780089A CN 107505052 A CN107505052 A CN 107505052A
- Authority
- CN
- China
- Prior art keywords
- hot
- fluid
- core body
- ceramic ring
- pinboard
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 53
- 239000000919 ceramic Substances 0.000 claims abstract description 48
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 20
- 239000010935 stainless steel Substances 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- 230000005457 Black-body radiation Effects 0.000 claims abstract description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052709 silver Inorganic materials 0.000 claims abstract description 9
- 239000004332 silver Substances 0.000 claims abstract description 9
- 229920006335 epoxy glue Polymers 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 239000011888 foil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- -1 cylindrical Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses it is a kind of wide when the big heat flow transducer of high temperature, include hot-fluid sensitive core body, it is arranged on the adiabatic ceramic ring A along hot-fluid sensitive core body axial direction both sides, adiabatic ceramic ring B, Stainless Steel Shell, stainless steel end cap and pinboard, the lead-out wire and external wire of hot-fluid sensitive core body are welded on pinboard, hot-fluid sensitive core body is made up of the cylindrical, copper thermal store of sensitive area and two sections of sections not etc., sensitive area coats black body radiation coating, and the appearance mirror polish of cylindrical, copper thermal store simultaneously plates the thin silver coating of last layer.The present invention in sensitive area by coating black body radiation coating, improve sensitive area absorptivity, thermal store is designed to the cylinder that two sections of sections are not waited, adiabatic ceramic ring is placed respectively between stainless steel casing, at rear end and hot-fluid end cap at the small bore of front end, transmission of the heat to thermal store when reducing hot-fluid incidence, the working time is additionally extended, improves the global reliability of structure.
Description
Technical field
The invention belongs to measure heat technique field, and in particular to high temperature big heat flow transducer when a kind of wide.
Background technology
Heat flow transducer is the basic tool for measuring heat transfer (heat flow density or heat flux), is the most pass for forming heat-flow meter
Key device.The performance and purposes of heat flow transducer determine the performance and purposes of heat-flow meter.Heat flow transducer is in scientific research, boat
Empty space flight, power engineering etc. are widely used, particularly the application of the big hot-fluid of high temperature, can not use water cooling, air-cooled
Deng cooling way when, need to be worked by the way of itself heat accumulation, the quality of heat structure and thermal store design is when just determining work
Between length.Existing heat flow transducer (high range general with circle foil principle) on the premise of thermal store size is certain,
Because exposure is in high temperature environments without good structure design, cause heat accumulation temperature constant for a long time, so as to draw
Sensor measurement errors are played, limit application in the measurement for a long time of some needs, in the case of high range hot-fluid.
For solve it is above-mentioned be exposed in hot environment the defects of applying, Application No. in existing patent document
CN201010106205.X, entitled " circle chaff type large-scale high-temperature heat flux sensor " a kind of round paillon foil formula of disclosure of the invention
Wide range high-temperature heat flux sensor, the problems such as constant temperature is not easy is realized to solve the heat sink body of existing round paillon foil formula heat flow transducer.
The sensor is furnished with shell, the heat sink body of bottom, and the cylindrical boss that heat sink body is set by main body, body top center is formed, outside
Shell shell top is provided with the through hole for embedding cylindrical boss at the top of heat sink body, has embedded round paillon foil in cylindrical boss, the center of circle paillon foil and
Edge is respectively welded the lead that thermocouple is formed with circle paillon foil, is arranged with and is placed between heat sink phosphor bodies and shell outside cylindrical boss
Adiabatic ring；Shell is made up of tubular shell and ceramic coping；Stacked between heat sink phosphor bodies bottom and Housing bottom cover and be provided with two
The support of individual Disc-shaped ceramic, between two Disc-shaped ceramics supports, the support of top set Disc-shaped ceramic between heat sink body bottom, heat sink phosphor bodies side
Air adiabatic layer is respectively equipped between wall and outer casing inner wall, so can be worked long hours in hot environment, realizes large range measuring.
But the shortcomings that patent is that front is only the transmission that heat is hindered by adiabatic ring, and side is thermally shielded by air layer,
It is only capable of keeping heat sink body constant temperature in a short time, it is difficult to reach the purpose of measurement for a long time.
The content of the invention
It is an object of the invention to be fixed in size sensor, thermal store size also fix so as to limit time of measuring,
By optimizing the structure of heat flow transducer on the premise of the measurement of the big hot-fluid of high temperature when leading to not realize width, when proposing a kind of wide
The big heat flow transducer of high temperature.
To achieve the above object, high temperature big heat flow transducer when the technical solution adopted by the present invention is a kind of wide, includes heat
Sensitive core body is flowed, is arranged on the adiabatic ceramic ring A along hot-fluid sensitive core body axial direction both sides, adiabatic ceramic ring B, Stainless Steel Shell is stainless
Steel end cap and pinboard, the lead-out wire and external wire of hot-fluid sensitive core body are welded on pinboard, and hot-fluid sensitive core body is by quick
The cylindrical, copper thermal store composition of sense face and two sections of sections not etc., sensitive area coating black body radiation coating, cylindrical, copper thermal store
Appearance mirror polish and plate the thin silver coating of last layer.
Further, above-mentioned adiabatic ceramic ring A be arranged on hot-fluid sensitive core body close to one end of sensitive area and Stainless Steel Shell it
Between, the hole of appropriate size is provided with Stainless Steel Shell and adiabatic ceramic ring A, is easy to the sensitive area for exposing hot-fluid sensitive core body.
Further, above-mentioned adiabatic ceramic ring A is ceramic using the microcrystalline mica of easy processing.
Hot-fluid sensitive core body places adiabatic ceramic ring B between one end and end cap away from sensitive area, two are provided with adiabatic ceramic ring B
Individual aperture, it is easy to draw output line.
Pinboard is placed on adiabatic ceramic ring B, can by via welding on pinboard by the output line of hot-fluid sensitive core body
Lean on, external wire is by perforation line and via wire bonding in pinboard relevant position.
The logical of hot-fluid end cap is passed through with epoxy glue, external wire preferably, being filled at the cavity of adiabatic ceramic ring B and pinboard
Hole is output to outside access electric connector.
Compared with prior art, the present invention has improved and optimizated the structure and technique of sensor in the following areas：
1, sensitive area coating black body radiation coating, improve sensitive area absorptivity；
2, thermal store is designed to the cylinder that two sections of sections are not waited, at the small bore of front end between stainless steel casing, rear end
With adiabatic ceramic ring is placed at hot-fluid end cap respectively, transmission of the heat to thermal store when reducing hot-fluid incidence；
3, the thin silver coating of last layer is plated after the polishing of heat accumulation external surface, increase reflection, reduces surrounding heat to thermal store
Transmit, slow down thermal store by external heat influence degree, lengthen working hours；
4, connected between hot-fluid core body output line and external wire by pinboard, ensure the global reliability of structure.
Brief description of the drawings
Fig. 1 is heat sensor structural representation.
Wherein, 1- thermal insulation ceramic ring A 2- housings 3- hot-fluids core body 4- thermal insulation ceramic ring B 5- pinboard 6- external wires 7-
Epoxy glue 8- screw 9- elastic washer 10- hot-fluid end caps.
Embodiment
In conjunction with accompanying drawing, the present invention will be further described in detail.
As shown in figure 1, heat flow transducer by Stainless Steel Shell 2, hot-fluid sensitive core body 3 (by sensitive area and two sections of sections not
Deng cylindrical, copper thermal store composition), adiabatic ceramic ring A1, adiabatic ceramic ring B4, pinboard 5, stainless steel end cap 10, mounting screw 8
Formed with elastic washer 9, epoxy glue and external wire etc..
Hot-fluid sensitive core body operation principle can be round foil either thermoelectric pile formula, according to different principle with certain
Mode is connected with copper thermal store, and sensing unit is embedded in inside hot-fluid sensitive core body 3.(part is common processes, is not repeated)
The left side of hot-fluid sensitive core body shown in Fig. 13 represents the sensitive position of sensing hot-fluid labeled as sensitive area part, and remainder is to store up
Hot body address.
Hot-fluid sensitive area coats black body radiation coating, and sensitive core body remainder polishes, and thin in its surface plating last layer
Silver coating.
Adiabatic ceramic ring A1 is bonded together with housing 2 with high-temperature plastic, by adiabatic magnet ring B4 and the resistance to height of hot-fluid core body 3
Temperature is gluing to be connected together, and the lead-out wire of hot-fluid core body 3 and external wire are welded on pinboard 10, i.e. hot-fluid sensitive core body
+ Vin output lines are passed through from positive (silk-screen face) threading hole of pinboard, and core body-Vin output lines are worn from pinboard reverse side threading hole
Cross, make pinboard among two output lines, and pinboard bottom is tightly pasted with adiabatic ceramic ring B and is merged into vertical relation, is protected
Card pinboard can load in end cap through hole, and core body output line is welded reliably by via on pinboard.Same method, outside
Output line is connect by perforation line and via wire bonding in pinboard relevant position.By screw 8 and elastic washer 9 by hot-fluid end cap
5 are fixed on housing 2, and the space of hot-fluid end cap 5 is filled up with epoxy glue 7, and external wire 6 is welded by solder stick.
Sensing element can be round foil or thermoelectric pile formula, and thermal store is pure copper material, black body radiation coating be by
Black body radiation material forms with high temperature resistant binder.Thermal store surface carries out silver-plated according to silver plating process.Adiabatic ceramic ring is heat conduction
Coefficient by 1W/ (mK) left and right microcrystalline mica ceramic material or the shaping of other easy processings, material that thermal conductivity factor is lower is made.
Heat flow transducer by hot-fluid sensitive core body (being made up of the cylindrical, copper thermal store of sensitive area and two sections of sections not etc.),
Adiabatic ceramic ring A, adiabatic ceramic ring B, Stainless Steel Shell, stainless steel end cap, pinboard etc. form.
The sensitive area coating black body radiation coating of hot-fluid sensitive core body, improves sensitive area absorptivity；Cylindrical, copper thermal store
Appearance mirror polish simultaneously plates a thin layer of silver, using silver layer by surrounding it is irradiated come hot-fluid reflect back, ensure thermal store
Temperature not by ectocine, can keep constant for a long time, lengthen working hours.
Adiabatic ceramic ring A, stainless steel are placed between Stainless Steel Shell (close to sensitive area one end) in hot-fluid sensitive core body front end
The hole of appropriate size is provided with housing and adiabatic ceramic ring A, is easy to the sensitive area for exposing hot-fluid sensitive core body.Stainless Steel Shell ensures
It is firm on sensor construction, reliable；Adiabatic ceramic ring A is ensureing the reliable premise of structure using the microcrystalline mica ceramics of easy processing
Under, because ceramic coefficient ratio stainless steel is much lower, therefore when there is front hot-fluid incidence, reduce biography of the heat to thermal store
Pass, reduce the temperature rise of thermal store, lengthen working hours.Put between end cap hot-fluid sensitive core body rear end (signal lead-out wire one end)
Adiabatic ceramic ring B is put, two apertures are provided with adiabatic ceramic ring B, is easy to draw output line, adiabatic ceramic ring B function is the same as adiabatic
Ceramic ring A, reduce transmission of the heat to thermal store.
It is in addition guarantee signal output and integrally-built reliability, pinboard is placed on adiabatic ceramic ring B, core body is defeated
Outlet welded by via on pinboard it is reliable, external wire by perforation line and via wire bonding in pinboard relevant position,
Filling it will be output to again at adiabatic ceramic ring B and pinboard cavity with epoxy glue, afterwards external wire by the through hole of hot-fluid end cap outer
Portion accesses electric connector.
By the improvement of said structure and technique, in the case of thermal store size constancy, heat flow transducer can be in height
Worked long hours under warm high range hot-fluid radiation, in 1kW/m2More than the radiant heat flux lower working time can extend 20% with
On.
The present invention is rational in infrastructure, optimization, can be worked long hours under high temperature high range hot-fluid environment.Heat accumulation external surface is thrown
The thin silver coating of last layer is plated after light, increase reflection, transmission of the surrounding heat to thermal store is reduced, slows down thermal store by external heat
Influence degree, lengthen working hours；Connected between hot-fluid core body output line and external wire by pinboard, ensure structure
Global reliability.By the improvement of said structure and technique, in the case of thermal store size constancy, heat flow transducer can be
Worked long hours under the radiation of high temperature high range hot-fluid, in 1kW/m2More than the radiant heat flux lower working time can extend 20% with
On.
Claims (6)
1. high temperature big heat flow transducer when a kind of wide, comprising hot-fluid sensitive core body, it is arranged on along hot-fluid sensitive core body axial direction both sides
Adiabatic ceramic ring A, adiabatic ceramic ring B, Stainless Steel Shell, stainless steel end cap and pinboard, the lead-out wire of hot-fluid sensitive core body and outer
Connect wire to be welded on pinboard, it is characterised in that hot-fluid sensitive core body is stored up by the cylindrical, copper of sensitive area and two sections of sections not etc.
Hot body composition, sensitive area coating black body radiation coating, the appearance mirror polish of cylindrical, copper thermal store simultaneously plate the thin silver coating of last layer.
2. high temperature big heat flow transducer when according to claim 1 wide, it is characterised in that the adiabatic ceramic ring A is arranged on heat
Sensitive core body is flowed between one end of sensitive area and Stainless Steel Shell, and appropriate chi is provided with Stainless Steel Shell and adiabatic ceramic ring A
Very little hole, it is easy to the sensitive area for exposing hot-fluid sensitive core body.
3. high temperature big heat flow transducer when according to claim 1 or 2 wide, it is characterised in that the adiabatic ceramic ring A is used
The microcrystalline mica ceramics of easy processing.
4. high temperature big heat flow transducer when according to claim 1 wide, it is characterised in that hot-fluid sensitive core body is away from sensitive
Adiabatic ceramic ring B is placed between the one end in face and end cap, two apertures are provided with adiabatic ceramic ring B, is easy to draw output line.
5. high temperature big heat flow transducer when according to claim 1 wide, it is characterised in that switching is placed on adiabatic ceramic ring B
Plate, the output line of hot-fluid sensitive core body is welded reliably by via on pinboard, external wire passes through perforation line and via line
It is welded on pinboard relevant position.
6. high temperature big heat flow transducer when according to claim 5 wide, it is characterised in that adiabatic ceramic ring B and pinboard sky
Filled at chamber and outside access electric connector is output to by the through hole of hot-fluid end cap with epoxy glue, external wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780089.1A CN107505052A (en) | 2017-09-01 | 2017-09-01 | High temperature big heat flow transducer when a kind of wide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780089.1A CN107505052A (en) | 2017-09-01 | 2017-09-01 | High temperature big heat flow transducer when a kind of wide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107505052A true CN107505052A (en) | 2017-12-22 |
Family
ID=60694809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710780089.1A Pending CN107505052A (en) | 2017-09-01 | 2017-09-01 | High temperature big heat flow transducer when a kind of wide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107505052A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836725A (en) * | 2018-08-16 | 2020-02-25 | 哈尔滨工业大学 | Double-probe heat flow meter in high heat flow coupling environment and method for measuring heat flow density thereof |
| CN113074839A (en) * | 2021-04-01 | 2021-07-06 | 北京强度环境研究所 | Plunger type heat flow sensor with double-thermocouple large heat sink structure |
-
2017
- 2017-09-01 CN CN201710780089.1A patent/CN107505052A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836725A (en) * | 2018-08-16 | 2020-02-25 | 哈尔滨工业大学 | Double-probe heat flow meter in high heat flow coupling environment and method for measuring heat flow density thereof |
| CN113074839A (en) * | 2021-04-01 | 2021-07-06 | 北京强度环境研究所 | Plunger type heat flow sensor with double-thermocouple large heat sink structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110672170B (en) | Thermal air flow measuring device | |
| CN101754656A (en) | Uniform temperature plate | |
| CN107505052A (en) | High temperature big heat flow transducer when a kind of wide | |
| CN106525288B (en) | A kind of pure radiant heat flux sensor | |
| CN201945401U (en) | High-precision three-wire double-probe quick-induction sensor | |
| CN205403951U (en) | Laser energy meter probe | |
| CN207351562U (en) | High temperature big heat flow transducer when a kind of wide | |
| CN202145229U (en) | Calibration source used for microwave radiometer | |
| CN202582738U (en) | Mini-type extend blackbody device based on TEC | |
| CN212320923U (en) | Infrared temperature measurement sensor device | |
| CN103617968B (en) | The packaging system of APD focal plane array chip | |
| CN210005124U (en) | shockproof sensitive bimetal thermometer | |
| CN109406010B (en) | Water-cooling Gordon calorimeter | |
| CN211904435U (en) | Exquisite integrated thermal resistor | |
| CN206331310U (en) | The structure of controlling temperature and monitoring device of a kind of monitoring device | |
| CN201993379U (en) | Thermal type wind sensor based on anisotropic heat conductive substrate | |
| CN107101726A (en) | A kind of high temperature resistant radiation sensor and its manufacture method based on T-shaped thermopile | |
| US20220319955A1 (en) | Thermal thick film integrated circuit | |
| CN204007920U (en) | A kind of temperature sensor | |
| CN218847412U (en) | Infrared thermal imaging control module of camera | |
| CN211651867U (en) | Temperature sensor | |
| CN207180882U (en) | A kind of high temperature resistant radiation sensor based on T-shaped thermopile | |
| CN215952783U (en) | Temperature sensor packaging structure and temperature detection device | |
| CN202888181U (en) | High-sensitivity temperature control thin film hybrid integrated circuit | |
| CN209420194U (en) | A kind of radiator for the face battle array multi-thread radar of solid-state |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |