CN2922220Y - Low conductivity rate circulate water cooling device - Google Patents

Low conductivity rate circulate water cooling device Download PDF

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Publication number
CN2922220Y
CN2922220Y CN 200620113291 CN200620113291U CN2922220Y CN 2922220 Y CN2922220 Y CN 2922220Y CN 200620113291 CN200620113291 CN 200620113291 CN 200620113291 U CN200620113291 U CN 200620113291U CN 2922220 Y CN2922220 Y CN 2922220Y
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CN
China
Prior art keywords
water
cooling
low conductivity
load
cooling water
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Expired - Fee Related
Application number
CN 200620113291
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Chinese (zh)
Inventor
李强
王志敏
姜梦华
王保华
庞恺
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Beijing University of Technology
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Beijing University of Technology
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Priority to CN 200620113291 priority Critical patent/CN2922220Y/en
Application granted granted Critical
Publication of CN2922220Y publication Critical patent/CN2922220Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A low conductivity rate circulate water cooling device belongs to high power solid laser device field. Inner circulate cooling device of the prior water cooling system can not guarantee the long time low conductivity rate and need change water frequently of once at one month. The utility model comprises an effluent connector (4) coming into a filter (3) from a cooling water secondary water tank (1) by a water pump (2), which is characterized in that when cooling water flowing from the effluent connector (4) is divided into two paths, wherein, one path enters a load (5), while the cooling water flows into a returning water connector (6) from the load (5), and flows into a heat changer (7) and returns to the water tank (1) after heat changing. The other path flows out from the effluent connector (4) and returns to the water tank (1) through a parallel filter device (8). The flux through the parallel filter device is 5 percent to 10 percent of the overall flux of inner circulation. The cooling water and the low conductivity of inner circulation can be maintained in long term. The water change rate is reduced to once at six months from once at one month average.

Description

The low conductivity circulating water cooling device
Technical field
A kind of low conductivity circulating water cooling device belongs to the great-power solid laser technical field.
Background technology
Great-power solid laser has high-energy storage, short, the metal absorptivity height of wavelength, is easy to Optical Fiber Transmission, realizes the advantage of flexible processing, is the important application system of laser processing.Obtain to use comparatively widely in industries such as machinery, electronics, automobile, Aero-Space, iron and steel, shipbuilding, military projects at present.
In the high-power lamp light-pumped solid state laser, it is the Nd:YAG rod that the radiation luminous energy of pumping lamp light source is transferred to operation material, produce laser with the exciting laser operation material, there is thermal effect, comprise: 1. pumping band and fluorescent energy difference are lost in the parent lattice by radiationless transition, 2. the quantum efficiency of fluorescence process is less than 1, and the part photon energy is lost in the parent lattice, and 3. the power conversion in the non-absorption spectrum of pump light district is a heat.Need circulating water cooling system that laser bar, pumping lamp etc. is cooled off, to guarantee the laser long-term stable operation.
Because pumping lamp needs high pressure preionization before normal operation, to guarantee normal gas discharge channel.The voltage of great-power solid laser pumping lamp preionization surpasses 10,000 volts, has the electric leakage problem that prevents.In the solid state laser, laser bar, pumping lamp, laser pump cavity all are positioned in the pump cavity, by circulating water cooling system, particularly full chamber water cooling pump cavity, laser bar, pumping lamp, laser pump cavity all are soaked in the recirculated cooling water, be full of recirculated cooling water between the electrode of pumping lamp, if there is leakage current in the conductivity height of recirculated cooling water between the electrode during preionization, influence the preionization of pumping lamp, pumping lamp can't preionization when serious, and laser can't run well.
Circulating water cooling system commonly used comprises external circulating system and internal circulation system.Internal circulation system is the closed-loop path water-cooling system, its intrasystem water is used for great-power solid laser is carried out cooling off in the chamber, and the pumping lamp of laser is immersed in the environment work down of cooling water in the chamber, in order to make pumping lamp high pressure preionization before normal operation, electrical conductivity of water must be less than 10 milli Siemens in the chamber, and to guarantee the long-time steady operation of laser, the conductivity of recirculated cooling water just must satisfy this condition for a long time.
The interior cooling back installation of water-cooling system can not guarantee low conductivity for a long time at present, need frequent refreshing the water periodically, being generally needed change once in every month, reach this condition, the needs of full chamber water-cooled lamp pumped great-power solid laser cooling can not be satisfied, and then industrialized needs can not be satisfied.
In order to address this problem the way that also has at present in the middle of the filter 3 of the interior cooling back installation (Fig. 1) of water-cooling system at present and water out adapter 4 filters of polyphone to reduce conductivity on the market, but this way has increased interior circulation water resistance, thereby reduced output flow greatly, thereby taken needed discharge in the laser works, should not be applied in the industry and go.
Circulating water cooling system commonly used comprises outer circulation water-cooling system and interior circulating water cooling system, circulation (Fig. 1) is the closed-loop path water-cooling system wherein, its operation principle is: cooling water enters 5 pairs of loads of load from water tank 1 and cools off after water pump 2 enters filter 3 inflow water out adapters 4, then cooling water flows out from load 5 and enters backwater joint 6, reflow tank 1 through backwater joint 6 inflow heat exchangers 7 cooling waters carry out heat exchange in heat exchanger 7 after.
The utility model content
The utility model provides a kind of low conductivity circulating water cooling device, cooling water enters filter 3 from water tank 1 through water pump 2 and flows into water out adapter 4, it is characterized in that: be divided into two-way after cooling water is flowed out by water out adapter 4: the one tunnel enters 5 pairs of loads of load cools off, then cooling water flows out from load 5 and enters backwater joint 6, reflow tank 1 through backwater joint 6 inflow heat exchangers 7 cooling waters carry out heat exchange in heat exchanger 7 after; Water direct reflow tank 1 behind the filter 8 of parallel connection that flow out from water out adapter 4 on another road; Discharge by shunt filter accounts for 5%~10% of interior circulation total flow, and the situation of circulating cooling system output flow is issued to the effect of filter ions in not influencing.
The performance of the utility model low conductivity circulating water cooling device is: the low conductivity that keeps recirculated cooling water for a long time, can guarantee the long-term stability operation of lamp pumped great-power solid laser, do not need frequently to change water, normal conditions are changed once the second half year, that is: non-maintaining, this just industrialization need, the small-sized filter of the utility model low conductivity circulating water cooling device parallel connection (shown in the empty frame of Fig. 2) installs simple and direct being easy to and changes, the advantage that is embodied in the application in practice is as follows:
But the low conductivity of recirculated cooling water in 1 long term maintenance, the ion that interior recirculated cooling water in the course of work is occurred carries out overanxious.
2 compare very for a short time with interior circulation total water current amount by the discharge of parallel filtering device, account for 5%~10% of total water current amount, that is: be do not influence whole in the situation of circulating cooling system output flow be issued to the deionization effect.
Operation principle:
Circulating water cooling system commonly used comprises external circulating system and internal circulation system, its interior circulating cooling system operation principle of this low conductivity circulating water cooling device is as described below: the current starting point of recirculated cooling water is the water tank place 1 among Fig. 2 in establishing, under the pumping of water pump 2, cooling water enters filter 3 by water tank 1 through water pump 2, enter water out adapter 4 after the outflow, after cooling water is flowed out by water out adapter 4, be divided into two-way: the one tunnel enters backwater joint 6 after 5 pairs of lasers of load cool off, then enter heat exchanger 7 reflow tank 1 behind the heat exchanger heat-shift.Another road is in the filter 8 direct reflow tanks 1 of parallel connection.So far, interior recirculated cooling water enters next circulation.The effect of added shunt filter is under the situation of the discharge that does not reduce to output to load, reduces the cooling electrical conductivity of water, carries out in time overanxious to the ion that occurs in the course of work.
Description of drawings
Fig. 1 is that sketch is moved towards in the circulating water cooling system water route in the circulating water cooling system of using always
Fig. 2 is that the principle sketch is moved towards in the circulating water cooling system water route in the utility model
Among the figure: 1. outlet exports silk silk 12. water out adapters silk 11. ion filter imports the 9. water tank imports of water tank 2. water pumps 3. filters 4. water out adapters 5. loads 6. backwater joints 7. heat exchangers 8. filters to silk 10. ion filters
Embodiment
As Fig. 2: the import that with internal diameter is about 15~20 centimetres wire-wound filter 8 of considering core is connected silk 12 usefulness flexible pipes the outlet of silk 11 and water out adapter, with another root flexible pipe the outlet of the filter import to silk 10 and water tank opposite is connected silk 9 again.Its schematic diagram is shown in empty frame among Fig. 2.The interior recirculated water cooling effect of the high power laser behind the ion filter in parallel is obvious: it not only can long term maintenance in the low conductivity of recirculated cooling water, carry out in time overanxious to the ion that occurs in the interior recirculated cooling water in the course of work, and make and change the water frequency by once being reduced to average six months original average January once, further guarantee the long-term stability operation of lamp pumped great-power solid laser, and then can satisfy industrialized needs.

Claims (1)

1, a kind of low conductivity circulating water cooling device, cooling water enters filter (3) from water tank (1) through water pump (2) and flows into water out adapter (4), it is characterized in that: be divided into two-way after cooling water is flowed out by water out adapter (4): the one tunnel enters load (5) cools off load, then cooling water flows out from load (5) and enters backwater joint (6), reflow tank (1) through backwater joint (6) inflow heat exchanger (7) cooling water carries out heat exchange in heat exchanger (7) after; Water direct reflow tank (1) behind the filter (8) of parallel connection that flow out from water out adapter (4) on another road; Discharge by shunt filter accounts for 5%~10% of interior circulation total flow.
CN 200620113291 2006-04-29 2006-04-29 Low conductivity rate circulate water cooling device Expired - Fee Related CN2922220Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620113291 CN2922220Y (en) 2006-04-29 2006-04-29 Low conductivity rate circulate water cooling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620113291 CN2922220Y (en) 2006-04-29 2006-04-29 Low conductivity rate circulate water cooling device

Publications (1)

Publication Number Publication Date
CN2922220Y true CN2922220Y (en) 2007-07-11

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CN 200620113291 Expired - Fee Related CN2922220Y (en) 2006-04-29 2006-04-29 Low conductivity rate circulate water cooling device

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CN (1) CN2922220Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102172800A (en) * 2010-12-31 2011-09-07 堃霖冷冻机械(上海)有限公司 Cooling system and method for laser processing equipment capable of simultaneously providing cold water and warm water
CN103889194A (en) * 2014-04-04 2014-06-25 安徽合一电气科技有限公司 Integration sealing type circulating cooling system for electric equipment
CN103928840A (en) * 2013-01-15 2014-07-16 沈阳大陆激光柔性制造技术有限公司 High purity water cooling device of semiconductor laser unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102172800A (en) * 2010-12-31 2011-09-07 堃霖冷冻机械(上海)有限公司 Cooling system and method for laser processing equipment capable of simultaneously providing cold water and warm water
CN102172800B (en) * 2010-12-31 2013-07-24 堃霖冷冻机械(上海)有限公司 Cooling system and method for laser processing equipment capable of simultaneously providing cold water and warm water
CN103928840A (en) * 2013-01-15 2014-07-16 沈阳大陆激光柔性制造技术有限公司 High purity water cooling device of semiconductor laser unit
CN103889194A (en) * 2014-04-04 2014-06-25 安徽合一电气科技有限公司 Integration sealing type circulating cooling system for electric equipment
CN103889194B (en) * 2014-04-04 2016-08-17 安徽合一电气科技有限公司 A kind of integrated closed circulating cooling system for power equipment

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070711

Termination date: 20100429