CN2333103Y - Kilowatt level cross flow carbon dioxide laser - Google Patents
Kilowatt level cross flow carbon dioxide laser Download PDFInfo
- Publication number
- CN2333103Y CN2333103Y CN 97241788 CN97241788U CN2333103Y CN 2333103 Y CN2333103 Y CN 2333103Y CN 97241788 CN97241788 CN 97241788 CN 97241788 U CN97241788 U CN 97241788U CN 2333103 Y CN2333103 Y CN 2333103Y
- Authority
- CN
- China
- Prior art keywords
- laser
- upper box
- box
- arc chamber
- carbon dioxide
- 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.)
- Expired - Fee Related
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 6
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000000411 inducer Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Lasers (AREA)
Abstract
A kilowatt-level transverse-flow carbon dioxide laser is used for laser processing and heat treatment. The whole laser is an integrated box body. The upper box body of the box body is internally provided with an integrated discharge chamber, a heat exchanger, a fan system, an inlet and outlet flow guider and an optical resonant cavity, and the lower box body of the box body is internally provided with a laser power supply, an air charging and discharging system, a vacuum pump, a ballast resistor box and a control box. Compared with the prior art, the laser has the characteristics of compact structure, convenient installation, debugging and maintenance, high working efficiency of the laser and miniaturization of the volume of the whole laser.
Description
It is carbon dioxide (CO that the utility model relates to a kind of working-laser material
2) the crossflow CO 2 laser of power output multikilowatt.Be applicable to laser processing and heat treatment.Be specially adapted to the laser quenching of engine cylinder-body, cylinder sleeve.
Prior art:
1. old satisfying " the long life-time sealed-off kW level transverse-flow CO that waits people's development of Shanghai Optics and Precision Mechanics institute, Chinese Academy of Sciences
2Laser ".(being disclosed in " Chinese laser " 1986 the 10th the 8th phases 470～486 of volume), laser is made up of laser bodies and DC high-voltage power supply two parts.Laser bodies is made of slow-speed shaft flow fan, heat exchanger, discharge box, bend pipe, optical cavity and base.
2. " the extended life seal industrial 5kW crossing current CO that turns round of people such as the Cheng Zhao of Shanghai Optics and Precision Mechanics institute, Chinese Academy of Sciences paddy development
2Laser " (being disclosed in " Chinese laser " the 1990,12, the 17th volume supplementary issue " Laser Devices monograph ").The complete machine of laser is vertical, have 8000 rev/mins of two two-stages the high-speed fan parallel running, have two discharge channels.Arc chamber adopts pulse pre-ionization pin one strip electrode structure.
The main body of above-mentioned two kinds of lasers and power supply are discrete, and complete machine structure is more open, volume is huger, debug and maintenance is inconvenient, it is complicated to operate.
The purpose of this utility model is to overcome the weak point that exists in the prior art, proposes a kind of main body and power supply integration of laser, and structure is compact, debugging and easy to maintenance, and working-laser material simple to operate is CO
2The crossing current CO of power output multikilowatt
2Laser.
Crossing current CO of the present utility model
2Laser comprises the upper box 1 that is made of top box shell 15 and constitutes incorporate complete machine casing by the lower box 12 that nowel shell 14 constitutes.
Said laser bodies comprises arc chamber 7, heat exchanger 3, blower fan system 4, inducer 5, exducer 2 and optical resonator 6.Wherein, the first five big assembly has constituted the circulation canal of working gas, places in the upper box 1 of sealing.Arc chamber 7 has integral structure, as the electrode of main discharge---cathode tube and positive plate array be placed on the corresponding governor motion of arc chamber 7 frameworks as the pectination pre-arcing pin and the water conservancy diversion glass of pre-arcing.Therefore, cathode tube, positive plate array, pectination pre-arcing pin three's relative position can put in place through a tracking of governor motion.
Place the blower fan system 4 in the upper box 1 to comprise centrifugal fan and motor with watter cooling.Centrifugal fan is the two air intake roundleaf wheel centrifugal fans that have the end face flange that strengthens impeller intensity.
Placing heat exchanger 3 in the upper box 1 is the heat exchangers that adopt the compound fin-tube type that the good red copper material of heat-conductive characteristic makes.
Placing the inducer 5 in the upper box 1 is to constitute the rectifier structure that is mouth organ grid shape by the multi-disc flow deflector, and even to guarantee the gas flow that enters in the arc chamber 7, region of discharge can obtain uniform flow field, thereby guarantees the uniformity of discharge.Exducer 2 contains the multi-disc flow deflector that can play shunting action.
The optical resonator 6 of the utility model laser is an intracavity, its total reflective mirror chamber head and output coupling mirror chamber head connect with upper box 1 by bellows respectively, and be fixed on the two ends of single-beam light bridge, and constituting optical cavity, two chamber heads and light bridge have adjustment and retaining mechanism separately.
Placing has Laser Power Devices 10 in the lower box 12, to charging and discharging the air-charging and air-discharging system 8 of gas in the arc chamber 7, and vacuum pump 9, what be used for main discharge has water-cooled steady resistance case 11 of immersion oil and a control box 13.
Advantage of the present utility model:
1. laser bodies of the present utility model and Laser Power Devices are with placing in the casing, realize that the laser complete machine is integrated, compact conformation, be convenient to Installation and Debugging and maintenance, easy to operate.
2. the moon one anode in the arc chamber of the present utility model 7 and pre-arcing pin all are fixed on the framework in the same arc chamber with governor motion, have constituted incorporate arc chamber.Compared with the prior art, debugging and maintenance are all more convenient.
3. because the internal structure of inducer 5 contains the structure that the multi-disc flow deflector constitutes mouth organ grid shape, could in arc chamber 7, obtain uniform flow field, thereby guarantee the uniformity of discharge.Exducer 2 contains the flow deflector of shunting gas, impels the air-flow that enters in the heat exchanger 3 even, has improved the conversion efficiency of heat exchanger 3, has also just improved the operating efficiency (comprising photoelectric conversion efficiency and quantum efficiency) of laser.
4. because arc chamber 7, heat exchanger 3, inducer 5, exducer 2 and blower fan system 4 all place within the upper box 1, bring the structure of said modules and profile all to be different from prior art thereupon.Be by the two air intake roundleaf wheel centrifugal fans of mouse cage shape and be with the motor of water-cooled to constitute as blower fan system 4, than axial flow blower used in the prior art (or tangent blower fan) and general centrifugal fan pressure head height, flow is big, and volume is little, therefore can make the volume miniaturization of complete machine.
Description of drawings:
Fig. 1 is the structural representation of the utility model laser complete machine
Fig. 1-1 is a laser internal structure schematic side view
Fig. 1-2 is a laser external structure front elevational schematic
Fig. 2 obtains representative discharge volt-ampere V-I characteristic curve in an embodiment for the utility model laser, laser power N, electro-optical efficiency η and operating voltage V, the relation curve of operating current I and operating air pressure P.
Embodiment:
Structure is as shown in Figure 1 made HJ-1000 type CO
2Laser is used for the laser quenching of the cylinder body and the cylinder sleeve of automobile engine, has obtained good effect.
Contrast accompanying drawing and the above-mentioned static architectural feature of describing, further again, with dynamically describing structure of the present utility model.Control box 13 controls by placing lower box 12 at first start the air that vacuum pump 9 is discharged in the arc chamber 7, charge into the working gas CO of laser by air-charging and air-discharging system 8
2, start Laser Power Devices 10, beginning discharge equably between the male-female utmost points in the arc chamber 7, the optical resonator 6 generation laser generation of working has laser beam output at the output coupling mirror end that constitutes optical resonator 6 in the region of discharge.After the discharge, the CO in the arc chamber 7
2Gas makes CO by containing the exducer 2 of the multi-disc flow deflector that can play shunting action
2Gas enters heat exchanger 3 equably, makes CO in heat exchanger 3
2Gas cools off fully, and the heat of heat exchanger 3 is discharged outside the casing by blower fan system 4.Through cooled CO
2Gas reenters arc chamber 7 for discharge use once more by inducer 5 again.The rest may be inferred circulation said process.As above-mentioned inducer 5 are the structures that are mouth organ grid shape that are made of the multi-disc flow deflector, make the gas flow that enters in the arc chamber 7 even, can obtain uniform flow field in the region of discharge, thereby guarantee the uniformity of discharge.So obtain following good operation parameter.
The main performance index of laser is:
Peak power output is 1000 watts (multimodes);
Rated output power is 800 watts;
Power instability≤± 2%;
Sealing continuous operation life-span 〉=8 hour/inflation each time;
Running noise≤72dB.
The characteristic of measured laser is as shown in the curve among Fig. 2.
1. the volt-ampere V-I characteristic curve from Fig. 2 is found out, operating voltage V changes little with the increase of operating current, and shows and slightly have a declining tendency, and the discharge that shows working gas is in the normal glow discharge district to discharging desired.Simultaneously, demonstrate the normal rule that operating voltage V rises with the rising of operating air pressure P.
2. the relation curve from laser power N and operating current I and air pressure P shows: under the normal glow discharge condition; laser power N is along with the increase of operating current I; be linear increase trend; especially when operating air pressure P is lower than 80 torrs; laser power N＞1kW; emergent power " saturated " phenomenon not yet, this has shown that the laser fan-out capability of this laser has surpassed designed capacity (1kW).Find out simultaneously: when laser was in the operating air pressure scope P=50 of " the best "～70 torrs, laser power N increased with operating air pressure P (gas density) to rise.
3. show by electro-optical efficiency η (%) curve: when the operating air pressure P of laser is chosen as 50～70 torrs, the photoelectric conversion efficiency η of laser (%) is in ascendant trend always, and the power of laser " stocks " often, and the laser output stability is relatively good.
Claims (4)
1. multikilowatt crossflow CO 2 laser, include laser bodies and Laser Power Devices (10) that working gas circulation canal that five big assemblies by arc chamber (7), heat exchanger (3), blower fan system (4), inducer (5) and exducer (2) constitute and optical resonator (6) are constituted, it is characterized in that concrete structure is:
1. laser comprises upper box (1) that is made of top box shell (15) and the incorporate complete machine casing of lower box (12) formation that is made of nowel shell (14);
2. be built-in with by arc chamber (7) at upper box (1), heat exchanger (3), the working gas circulation canal that blower fan system (4) and import and export air deflector (5), (2) five big assemblies constitute, be built-in with Laser Power Devices (10) at lower box (12), air-charging and air-discharging system (8), vacuum pump (9), steady resistance case (11) and control box (13);
3. place main discharge cathode tube-positive plate array that the arc chamber (7) in the upper box (1) contains and the pectination of giving discharge given spray point and water conservancy diversion glass is to place on the framework that has governor motion of arc chamber, constituted incorporate arc chamber;
4. place the blower fan system (4) in the upper box (1) to comprise centrifugal fan and motor with watter cooling;
5. placing the inducer (5) in the upper box (1) is to constitute the rectifier structure that is mouth organ grid shape by the multi-disc flow deflector, and exducer (2) contains the multi-disc flow deflector that can play shunting action.
2. according to a kind of carbon dioxide laser of claim 1, it is characterized in that heat exchanger (3) is the compound fin-tube type that the red copper material is made.
3. according to a kind of carbon dioxide laser of claim 1, it is characterized in that the centrifugal fan in the blower fan system (4) is the two air intake roundleaf wheel centrifugal fans that have the end face flange that strengthens impeller intensity.
4. according to a kind of carbon dioxide laser of claim 1, the optical resonator (6) that it is characterized in that laser is an intracavity, its total reflective mirror chamber head and output coupling mirror chamber head connect with upper box (1) by bellows respectively, and be fixed in single-beam Guang Qiao two ends, constitute optical cavity, two chamber heads and light bridge have adjustment and retaining mechanism separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241788 CN2333103Y (en) | 1997-09-26 | 1997-09-26 | Kilowatt level cross flow carbon dioxide laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97241788 CN2333103Y (en) | 1997-09-26 | 1997-09-26 | Kilowatt level cross flow carbon dioxide laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2333103Y true CN2333103Y (en) | 1999-08-11 |
Family
ID=33951178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97241788 Expired - Fee Related CN2333103Y (en) | 1997-09-26 | 1997-09-26 | Kilowatt level cross flow carbon dioxide laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2333103Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414790C (en) * | 2006-03-30 | 2008-08-27 | 张建良 | Power supply device for cathode-anode of overflow laser and method for power supplying to cathod-anode of multi-channel laser using the device |
| CN100438234C (en) * | 2006-03-21 | 2008-11-26 | 李再光 | Gas cooling cathode insulation box of gas laser and its laser |
-
1997
- 1997-09-26 CN CN 97241788 patent/CN2333103Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438234C (en) * | 2006-03-21 | 2008-11-26 | 李再光 | Gas cooling cathode insulation box of gas laser and its laser |
| CN100414790C (en) * | 2006-03-30 | 2008-08-27 | 张建良 | Power supply device for cathode-anode of overflow laser and method for power supplying to cathod-anode of multi-channel laser using the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |