CN106772999A - Large aperture telescope lightweight primary mirror back heat control system - Google Patents
Large aperture telescope lightweight primary mirror back heat control system Download PDFInfo
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- CN106772999A CN106772999A CN201611165628.2A CN201611165628A CN106772999A CN 106772999 A CN106772999 A CN 106772999A CN 201611165628 A CN201611165628 A CN 201611165628A CN 106772999 A CN106772999 A CN 106772999A
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- primary mirror
- fixed
- lightweight
- heat exchanger
- air
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
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- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
Abstract
Large aperture telescope lightweight primary mirror back heat control system, is related to large aperture telescope field, the refrigeration heat exchange problem of air after solving the problems, such as the cooling circulation power of cold air in large aperture telescope lightweight primary mirror back thermal control and being exchanged heat with primary mirror.The present invention includes thermal control blower fan apparatus and multiple air nozzles.Thermal control blower fan apparatus include aerofoil fan, heat exchanger, eight cylinder yielding rubbers, four gusset, two reinforcing plates, four fixed derricks, four suspension rod rebounds, flexible bellow, mirror cell air passage changeover pipe, heat exchanger air passage changeover pipe are installed.Circulation of the present invention for cold air while air temperature is controlled provides power, cold air is fully exchanged heat, and is directly taken away the heat of telescope primary mirror using the coolant in heat exchanger.In order to the vibration for preventing aerofoil fan is delivered on primary mirror, the vibration produced when isolating and install fixed by cylinder yielding rubber isolates the vibration produced on air channel by flexible bellow, vibrates small.
Description
Technical field
The present invention relates to large aperture telescope technical field, and in particular to a kind of large aperture telescope lightweight primary mirror back
Heat control system.
Background technology
In order to the exploration, the formation in research universe and the auxiliary mankind that preferably carry out outer space galaxy are empty in ground ectosphere
Between activity, it is necessary to telescope have resolution of diffraction higher, stronger light collecting light ability, farther detectivity.For
This target is realized, telescope needs more bigbore primary mirror.However as the increase of telescope primary mirror bore, the matter of primary mirror
Amount is also increasing, and the installation that on the one hand can cause primary mirror is debug, Deformation control and motion control etc. become very difficult, another
A series of heat problems that aspect is brought due to the increase of thermal inertia are also further obvious.
Telescope primary mirror has important as optical element crucial in telescopic system to the image quality of telescope
Influence, in order to overcome primary mirror seeing and thermal deformation produced by primary mirror own temperature gradient to the shadow of telescope image quality
Ring, telescope primary mirror temperature is reasonably controlled to seem very necessary.For such case, the prestige for bore more than 4m
Remote mirror primary mirror, in addition to the passive thermal control modes such as conventional using tradition heat-insulated, radiating, coating, can also be to telescope primary mirror
Carry out Active thermal control.The general form by Active thermal control, can control -1.6 the temperature difference of telescope primary mirror and environment
DEG C~+0.8 DEG C, to reduce the influence of the too high caused primary mirror seeing of primary mirror temperature.
The content of the invention
In order to solve the problems, such as cold air in large aperture telescope lightweight primary mirror back thermal control cooling circulation power and
With the refrigeration heat exchange problem of air after primary mirror heat exchange, a kind of large aperture telescope lightweight primary mirror back thermal control of present invention offer
System, to meet the thermal control index request of telescope primary mirror.
The present invention is as follows to solve the technical scheme that technical problem is used：
Large aperture telescope lightweight primary mirror back of the invention heat control system, including the thermal control wind inside primary mirror cell
Machine device, the multiple air nozzles being distributed on primary mirror cell's plate of lightweight primary mirror, multiple air nozzles and lightweight master
Multiple lightweight holes on mirror are corresponded and communicated, and the thermal control blower fan apparatus include：
Aerofoil fan；
It is fixed on the heat exchanger on aerofoil fan；
Four installation gussets；
Each is installed gusset both sides and is respectively and fixedly provided with a cylinder yielding rubber；
The heat exchanger air channel that four cylinder yielding rubbers of gusset short side are connected with heat exchanger is installed by being fixed on
Transition conduit；
Four fixed derricks, each fixed derrick is installed the cylinder yielding rubber on gusset side long and is installed by being fixed on
Gusset is connected；
One-to-one corresponding is fixed on four the four of fixed derrick end suspension rod rebounds, four suspension rod rebounds and primary mirror cell
Primary mirror cell's plate be connected；
The flexible bellow being connected with heat exchanger air passage changeover pipe；
The mirror cell's air passage changeover pipe being connected with flexible bellow, mirror cell's air passage changeover pipe rear end face is fixed on primary mirror cell
Primary mirror cell's plate on, and mirror cell's air passage changeover pipe communicates with the central through hole of lightweight primary mirror.
Further, two fixed derricks per side are connected by reinforcing plate, and booster action is realized by reinforcing plate.
The beneficial effects of the invention are as follows：
1st, the present invention is using aerofoil fan and heat exchanger is ingenious is combined into thermal control blower fan apparatus, by telescope primary mirror thermal control
The first two heat exchanging process perfectly merged by thermal control blower fan apparatus, be cold air while air temperature is controlled
Circulation provides power, cold air is fully exchanged heat, and the final coolant using in heat exchanger is directly by the heat of telescope primary mirror
Amount is taken away, and realizes the thermal control to telescope primary mirror.
2nd, in order to the vibration for preventing aerofoil fan is delivered on telescope primary mirror, the present invention uses vibration isolation technique, mainly
The vibration produced when isolating and install fixed by cylinder yielding rubber, the vibration produced on air channel is isolated by flexible bellow,
Reduce vibration.
3rd, simple structure of the present invention, safe and reliable, can be good at energy saving, and operating cost is low.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the thermal control blower fan apparatus in the present invention.
Fig. 2 is the front view of the thermal control blower fan apparatus in the present invention.
Fig. 3 is principle schematic of the invention.
In figure：1st, aerofoil fan, 2, heat exchanger, 3, cylinder yielding rubber, 4, gusset is installed, 5, reinforcing plate, 6, fixed
Suspension rod, 7, suspension rod rebound, 8, flexible bellow, 9, mirror cell's air passage changeover pipe, 10, heat exchanger air passage changeover pipe, 11, primary mirror
Room, 12, primary mirror cell's plate, 13, lightweight primary mirror, 14, upper air-pressure chamber, 15, lower pumping chamber, 16, air nozzle, 17, hot-air,
18th, cold air, 19, flexible sealing, 20, thermal control blower fan apparatus.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figures 1 to 3, a kind of large aperture telescope lightweight primary mirror back heat control system of the invention, mainly includes
Thermal control blower fan apparatus 20 and multiple air nozzles 16.
As depicted in figs. 1 and 2, the thermal control blower fan apparatus 20 in the present invention mainly include：Aerofoil fan 1, heat exchanger 2,
Eight cylinder yielding rubbers 3, four install 6, four suspension rod rebounds 7 of the fixed derrick of reinforcing plate 5, four of gusset 4, two, soft
Property bellows 8, mirror cell's air passage changeover pipe 9, heat exchanger air passage changeover pipe 10.
Aerofoil fan 1 is fixed by screws in the front end of heat exchanger 2.The square method of the front end of heat exchanger air passage changeover pipe 10
Blue disk is connected by four cylinder yielding rubbers 3 and four nuts with the back end grip of heat exchanger 2, and cylinder yielding rubber 3 is used for
Vibration between isolation heat exchanger 2 and heat exchanger air passage changeover pipe 10.It is a kind of L-shaped installing plate to install gusset 4, connection heat
Exchanger air passage changeover pipe 10 is corresponded by nut with four rear ends of cylinder yielding rubber 3 of heat exchanger 2 and is fixed on
Four are installed on the short side of gusset 4.The one end of four additional cylinder yielding rubber 3 is corresponded by nut and is fixed on four installations
On the side long of gusset 4, this four other ends of cylinder yielding rubber 3 are connected with four fixed derricks 6 by nut respectively.Heat exchanger
Vibration isolation connection is carried out by cylinder yielding rubber 3 and installation gusset 4 between 2 and fixed derrick 6.
Two fixed derricks 6 per side are connected by reinforcing plate 5 to be strengthened.Four suspension rod rebounds 7 are corresponded
Four ends of fixed derrick 6 are fixed on, this four suspension rod rebounds 7 are directly connected with primary mirror cell's plate 12 of primary mirror cell 11.It is flexible
The front end of bellows 8 is fixedly linked with the rear end of heat exchanger air passage changeover pipe 10, the rear end of flexible bellow 8 and mirror cell's air passage changeover pipe
9 front ends are fixedly linked, and flexible bellow 8 is used to isolate the vibration produced on air channel.The rear end of mirror cell air passage changeover pipe 9 is fixed on master
On primary mirror cell's plate 12 of mirror cell 11, and mirror cell air passage changeover pipe 9 is communicated with the central through hole of lightweight primary mirror 13.
As shown in figure 3, the thermal control blower fan apparatus 20 in the present invention are arranged on inside primary mirror cell 11, between multiple air nozzles 16
Every being distributed on primary mirror cell's plate 12 of lightweight primary mirror 13, the multiple lightweights on multiple air nozzles 16 and lightweight primary mirror 13
Hole corresponds and communicates.
A kind of large aperture telescope lightweight primary mirror back heat control system of the invention, including three below heat exchange
Journey：
First heat exchanging process：Lightweight primary mirror 13 is by the form of heat convection or radiation heat transfer by heat transfer
To cold air 18 or coldplate；
Second heat exchanging process：Coolant of the heat exchange that lightweight primary mirror 13 is passed over to heat exchanger 2
In；
3rd heat exchanging process：Heat is discharged to coolant in heat exchanger 2 the lower air port away from dressing table location of looking in the distance.
As shown in figure 3, above-mentioned specific heat exchanging process is as follows：
Cold air 18 in primary mirror cell 11 passes through each lightweight hole that multiple air nozzles 16 enter lightweight primary mirror 13
In, lower surface of the cold air 18 in the form of forced-convection heat transfer to the minute surface of lightweight primary mirror 13, floor around and backboard
Surface is cooled down, and the hot-air 17 after heat convection exits into upper gas by the multiple lightweight holes on lightweight primary mirror 13
Pressure chamber 14.
In the presence of thermal control blower fan apparatus 20 in the present invention, aerofoil fan 1 will be changed in upper air-pressure chamber 14 by convection current
The suction of hot-air 17 thermal control blower fan apparatus 20 after heat pipeline (suck successively mirror cell air passage changeover pipe 9, flexible bellow 8,
After heat exchanger air passage changeover pipe 10 in arrival heat exchanger 2), it is cooled down through heat exchanger 2 while supercharging to it.
By temperature adjustment again and supercharging air enter lower pumping chamber 15, the increasing of the cold air 18 in lower pumping chamber 15
Pressure is realized by aerofoil fan 1.
Under pressure difference effect of the lower pumping chamber 15 with upper air-pressure chamber 14, cold air 18 reenters air nozzle 16 and lays equal stress on
Multiple said process.
In present embodiment, aerofoil fan 1 uses the blower fan 4114NH5 of ebmpapst companies of Germany.
In present embodiment, heat exchanger 2 uses the heat exchanger 6105 of Lytron companies of the U.S..
In present embodiment, gusset 4 is installed and is made of NR elastomeric materials or SBR rubber material.
In present embodiment, reinforcing plate 5 is made of aluminium alloy, such as 2A12.
In present embodiment, fixed derrick 6 is made of aluminium alloy, such as 2A12.
In present embodiment, suspension rod rebound 7 is made of aluminium alloy, such as 2A12.
In present embodiment, flexible bellow 8 uses aluminum foil pipe.
In present embodiment, mirror cell air passage changeover pipe 9 is made of aluminium alloy, such as 2A12.
In present embodiment, heat exchanger air passage changeover pipe 10 uses aluminum foil pipe.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. large aperture telescope lightweight primary mirror back heat control system, including the thermal control blower fan apparatus inside primary mirror cell (11)
(20) the multiple air nozzles (16) on primary mirror cell's plate (12) of lightweight primary mirror (13), multiple air nozzles, are distributed in
(16) corresponded with the multiple lightweight holes on lightweight primary mirror (13) and communicated, it is characterised in that the thermal control blower fan apparatus
(20) include：
Aerofoil fan (1)；
It is fixed on the heat exchanger (2) on aerofoil fan (1)；
Four are installed gusset (4)；
Each is installed gusset (4) both sides and is respectively and fixedly provided with a cylinder yielding rubber (3)；
The heat exchanger that four cylinder yielding rubbers (3) of gusset (4) short side are connected with heat exchanger (2) is installed by being fixed on
Air passage changeover pipe (10)；
Four fixed derricks (6), each fixed derrick (6) installs the cylinder yielding rubber on gusset (4) side long by being fixed on
(3) it is connected with installation gusset (4)；
One-to-one corresponding is fixed on four four suspension rod rebounds (7) of fixed derrick (6) end, four suspension rod rebounds (7) with
Primary mirror cell's plate (12) of primary mirror cell (11) is connected；
The flexible bellow (8) being connected with heat exchanger air passage changeover pipe (10)；
Mirror cell's air passage changeover pipe (9) being connected with flexible bellow (8), mirror cell's air passage changeover pipe (9) rear end face is fixed on
On primary mirror cell's plate (12) of primary mirror cell (11), and mirror cell's air passage changeover pipe (9) communicates with the central through hole of lightweight primary mirror (13).
2. large aperture telescope lightweight primary mirror back according to claim 1 heat control system, it is characterised in that per side
Two fixed derricks (6) are connected by reinforcing plate (5), and booster action is realized by reinforcing plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165628.2A CN106772999A (en) | 2016-12-16 | 2016-12-16 | Large aperture telescope lightweight primary mirror back heat control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165628.2A CN106772999A (en) | 2016-12-16 | 2016-12-16 | Large aperture telescope lightweight primary mirror back heat control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106772999A true CN106772999A (en) | 2017-05-31 |
Family
ID=58892870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611165628.2A Pending CN106772999A (en) | 2016-12-16 | 2016-12-16 | Large aperture telescope lightweight primary mirror back heat control system |
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| CN (1) | CN106772999A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907989A (en) * | 2017-11-24 | 2018-04-13 | 中国科学院长春光学精密机械与物理研究所 | Telescope and its primary mirror ring control device |
| CN109507793A (en) * | 2019-01-22 | 2019-03-22 | 日照职业技术学院 | A kind of Newtonian astronomical telescope eyeglass thermostat |
| US10578831B2 (en) | 2018-01-02 | 2020-03-03 | Elbit Systems Electro-Optics—Elop Ltd. | Mechanism, system and method for reducing internal air temperature gradient in a centrally-obscured reflective telescope |
-
2016
- 2016-12-16 CN CN201611165628.2A patent/CN106772999A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 刘祥意: "4mSiC轻量化主镜的热控系统设计研究", 《中国博士学位论文全文数据库工程科技II辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907989A (en) * | 2017-11-24 | 2018-04-13 | 中国科学院长春光学精密机械与物理研究所 | Telescope and its primary mirror ring control device |
| US10578831B2 (en) | 2018-01-02 | 2020-03-03 | Elbit Systems Electro-Optics—Elop Ltd. | Mechanism, system and method for reducing internal air temperature gradient in a centrally-obscured reflective telescope |
| CN109507793A (en) * | 2019-01-22 | 2019-03-22 | 日照职业技术学院 | A kind of Newtonian astronomical telescope eyeglass thermostat |
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Application publication date: 20170531 |
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