CN115377778B - Optical fiber laser thermal control device and method based on two-phase fluid - Google Patents
Optical fiber laser thermal control device and method based on two-phase fluid Download PDFInfo
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- CN115377778B CN115377778B CN202211301595.5A CN202211301595A CN115377778B CN 115377778 B CN115377778 B CN 115377778B CN 202211301595 A CN202211301595 A CN 202211301595A CN 115377778 B CN115377778 B CN 115377778B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/042—Arrangements for thermal management for solid state lasers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
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Abstract
The invention discloses a two-phase fluid-based optical fiber laser thermal control device and a method, and the device comprises a primary side temperature control system and a secondary side pump drive two-phase system for exchanging heat with the primary side temperature control system through a plate heat exchanger. The primary side temperature control system comprises two refrigeration modes of pump driving and compressor refrigeration, and can switch the refrigeration modes according to environmental conditions to realize accurate control of liquid inlet temperature; meanwhile, in the secondary side pump drive two-phase system, on the basis that flow resistance matching adopts constant-voltage method control, the temperature out-of-control phenomenon caused by power consumption change of each branch can be avoided while the heat dissipation requirement is met through the matching design of the resistance part and the heat collector and the multi-branch parallel connection design, and the heat dissipation effect of each laser is ensured. The primary side temperature control system and the secondary side pump drive two-phase system are independent and mutually associated, the structure is simple, the operation is convenient, high-efficiency heat dissipation can be realized, and the stable operation of the laser is ensured.
Description
Technical Field
The invention relates to the technical field of high-performance heat dissipation, in particular to a thermal control device and method of a fiber laser based on two-phase fluid.
Background
The photoelectric conversion efficiency, the device stability, the device power and other performances of key devices of the laser are mutually related, the heat effect in the optical fiber laser system gradually becomes a main obstacle for improving the laser power, meanwhile, the heat dissipation is also a key factor influencing the photoelectric conversion efficiency and the device stability, and the reasonable, efficient and reliable heat dissipation design of products is a necessary condition for improving the product performance. With the development of lasers, power consumption and power density both rise sharply, the traditional air cooling and conventional liquid cooling modes cannot meet the requirement of heat dissipation, and phase-change heat exchange is considered as a main solution for dealing with heat dissipation with extremely high heat flux density in the future due to excellent heat dissipation performance of the phase-change heat exchange. Compared with single-phase heat exchange, two-phase boiling heat exchange has the following advantages: (1) The latent heat of phase change of the working medium is utilized to transport heat, and the heat exchange coefficient is far higher than that of single-phase convection heat exchange; (2) Because the flowing boiling heat exchange has stronger heat exchange capacity, the flow of the working medium required when the same heat is taken away is smaller, and therefore, the pump power consumption and the working medium storage capacity of the system can be reduced; (3) The heat exchange mainly depends on latent heat of phase change, and good temperature uniformity of the heat exchange wall surface can be provided, so that the heat exchange wall surface is kept near the saturation temperature of the working medium. However, the existing heat dissipation system based on two-phase boiling heat exchange has a single refrigeration mode, cannot realize accurate control of any temperature with high efficiency and low energy consumption, has limited heat dissipation capability for a plurality of devices with high power and density, and is difficult to ensure the heat dissipation effect when the power of a single device or a plurality of devices fluctuates.
In the prior art, a patent with publication number CN 208590199U discloses a heat dissipation system based on a compressor and a pump-driven two-phase fluid loop, which is provided with two stages of heat dissipation systems, wherein an evaporator, a first electromagnetic valve, a compressor, a condenser, a second electromagnetic valve, a liquid storage device and an electronic expansion valve form a first stage heat dissipation system, and the evaporator, a fifth electromagnetic valve, the condenser, a third electromagnetic valve, a circulating pump and a fourth electromagnetic valve form a second stage heat dissipation system; however, the first-stage heat dissipation system and the second-stage heat dissipation system are directly communicated, the system coupling is strong, the reliability is low, the liquid inlet temperature cannot be effectively and accurately controlled, and meanwhile, the heat dissipation effect of the equipment is difficult to guarantee when the power of the equipment fluctuates.
In view of the above, it is necessary to design a thermal control apparatus and method for a fiber laser based on two-phase fluid to solve the above problems.
Disclosure of Invention
The invention aims to provide a two-phase fluid-based optical fiber laser thermal control device and a method, which can transfer heat of a secondary side pump drive two-phase system to a primary side temperature control system through a heat exchanger for heat dissipation, utilize two refrigeration modes of a pump drive and a compressor refrigeration of the primary side temperature control system, switch the refrigeration modes according to environmental conditions, simultaneously combine a heat regenerator and a preheater in the secondary side pump drive two-phase system to accurately control the temperature of a feed liquid at 22 ℃, and ensure the heat dissipation effect by utilizing the matching design of a resistance piece and the heat collector and combining the arrangement of a flow adjusting part in the secondary side pump drive two-phase system.
In order to achieve the purpose, the invention provides an optical fiber laser thermal control device based on two-phase fluid, which comprises a primary side temperature control system and a secondary side pump drive two-phase system for exchanging heat with the primary side temperature control system through a heat exchanger, wherein the primary side temperature control system comprises a condenser, a first liquid storage tank, a throttle valve, a compressor refrigeration pipeline and a pump drive pipeline which are sequentially connected onto a first main body pipeline, and the compressor refrigeration pipeline and the pump drive pipeline are connected with the first main body pipeline in parallel and then connected with the first main body pipeline, and the secondary side pump drive two-phase system comprises a second pump, a second liquid storage tank, a resistance piece and a heat collector matching connection pipeline which are connected with a second main body pipeline.
As a further improvement of the invention, the heat exchanger is a plate heat exchanger; and heat regenerators are arranged on the liquid inlet pipeline and the liquid outlet pipeline of the second main body pipeline.
As a further improvement of the invention, a preheater is arranged on the heat regenerator and a liquid inlet pipeline between the resistance piece and the heat collector matching connection pipeline.
As a further improvement of the invention, the resistance part and the heat collector are provided with a plurality of matching connecting pipelines which are connected in parallel to form a multi-branch laser parallel pipeline.
As a further improvement of the present invention, a second bypass branch is connected in parallel to the second pump line, a third electromagnetic valve is arranged on the second bypass branch, and a parallel connection line of the second pump line and the second bypass branch is connected to the second liquid storage tank.
As a further improvement of the invention, a second filter and a second check valve are also sequentially arranged on the second pump pipeline along the opposite direction of the flow of the cooling working medium.
As a further improvement of the invention, a heater is designed in the second liquid storage tank and is used for regulating and controlling the temperature and the pressure of the second liquid storage tank.
As a further improvement of the invention, the cooling working medium of the secondary side pump-driving two-phase system is a coolant, and the coolant is any one of R134a, R134yf, R410a and HFE 7000.
As a further improvement of the invention, a first electromagnetic valve and a compressor are sequentially arranged on the compressor cooling pipeline along the direction far away from the plate heat exchanger, and a second electromagnetic valve, a first check valve, a first filter and a first pump are sequentially arranged on the pump driving pipeline along the direction far away from the plate heat exchanger.
The invention also provides a two-phase fluid-based optical fiber laser heat control method, which adopts any one of the technical schemes to process the two-phase fluid-based optical fiber laser heat control device, and comprises the following steps: the cooling working medium in the secondary side pump-driven two-phase system enters the heat collector under the driving of the second pump, the cooling working medium in the heat collector is subjected to gas-liquid phase change, the heat is taken away through latent heat of gasification, then the heat is transferred to the primary side two-phase temperature control system through the plate heat exchanger, and finally the heat is dissipated out, so that the heat dissipation target is realized; and the cooled cooling working medium enters a second pump through a pipeline, and the circulation is repeated in this way to dissipate the heat of the laser.
The invention has the beneficial effects that:
1. the primary side temperature control system is provided with two refrigeration modes, a proper mode can be selected for heat dissipation according to the change of the environmental temperature, the temperature of liquid inlet in a secondary side pump driving two-phase system is kept at about 22 ℃, and when the temperature of the liquid inlet is not more than the environmental temperature, the primary side is in a compressor refrigeration mode by controlling the electromagnetic valve; when the temperature of the inlet liquid is higher than the ambient temperature, the primary side is in a pump driving refrigeration mode by controlling the electromagnetic valve. The working time of the compressor can be reduced by matching the two modes, the service life of the compressor is prolonged, the overall service life of the thermal control device is prolonged, and meanwhile, the energy-saving effect can be achieved. In addition, on one hand, the primary side temperature control system is utilized to initially keep the liquid inlet temperature at about 22 ℃, and on the other hand, the primary heating of a heat regenerator and the precise heating of a preheater in the secondary side pump driving two-phase system are combined, so that the liquid inlet temperature is accurately controlled at 22 ℃, and the heat dissipation requirement of the laser heat dissipation is met.
2. The secondary side pump drives the flow resistance matching design of the mechanical resistance part of the two-phase system part, can support and realize the parallel heat dissipation of a plurality of branch lasers, prevent the situation that the branch flow is robbed and the temperature is out of control because of the power consumption change of a certain branch or a plurality of branches, wherein, reduce the influence of the power consumption change on the heat dissipation effect through two control methods, one of them, when the power consumption of each laser connected in parallel is the same or similar, the flow resistance matching adopts the constant pressure method, through the matching design of the resistance part and the heat collector, guarantee each branch heat collector is under the premise of meeting the heat dissipation of the maximum power consumption working condition, the pressure fluctuation of each branch caused by the power consumption fluctuation is far smaller than the branch pressure drop, and then make each branch flow meet the design requirement, meet the heat dissipation requirement of the laser; secondly, when the power consumption of each parallelly connected laser instrument differed greatly, on constant voltage control's basis, carry out the flow resistance matching design to the resistance piece of each branch road alone, realize the accurate accuse temperature of each branch road, avoid the pressure drop that certain branch road arouses because of the power consumption is undulant to produce the influence to other branch roads simultaneously to guarantee the radiating effect of each branch road.
3. The parallel branch circuits are arranged beside the second pump, so that the flow of the two-phase fluid loop can be adjusted in a large range, and the design that the PQ curve of the second pump is a gentle curve is combined, namely when the pressure drop change is small, the flow can be changed greatly, the pressure fluctuation of each branch circuit caused by power consumption fluctuation can be regulated and controlled conveniently through the flow change on the basis of constant pressure control, and the heat dissipation effect of each branch circuit is ensured.
4. The heat dissipation device comprises a plate type heat exchanger, a primary side temperature control system, a secondary side pump drive two-phase system, a primary side pump drive two-phase system, a secondary side pump drive two-phase system, a primary side temperature control system, a secondary side pump drive two-phase system and a secondary side pump drive two-phase system, wherein the two-phase system is connected with the primary side temperature control system and the secondary side pump drive two-phase system through the plate type heat exchanger.
5. The multi-branch parallel design of the heat collector part in the secondary side pump drive two-phase system can ensure that the thermal control device of the invention is selectively used for the heat dissipation of a single laser device or a plurality of laser devices, and when the thermal control device is used for the heat dissipation of a plurality of laser devices, the heat dissipation effect is not influenced by the change of the number of the devices and the power consumption.
Drawings
Fig. 1 is a schematic diagram of a two-phase fluid-based fiber laser thermal control device of the present invention.
Fig. 2 is a schematic diagram of a two-phase fluid-based fiber laser thermal control device of a primary side temperature control system of the present invention using a compressor refrigeration mode.
Fig. 3 is a schematic diagram of a two-phase fluid-based fiber laser thermal control device of a primary side temperature control system of the present invention employing a pump-driven refrigeration mode.
Reference numerals
10. A plate heat exchanger; 21. a condenser; 22. a first liquid storage tank; 231. a throttle valve; 232. a first bypass branch; 241. a first solenoid valve; 242. a compressor; 251. a second solenoid valve; 252. a first check valve; 253. a first filter; 254. a first pump; 31. a second liquid storage tank; 321. a second pump; 322. a second filter; 323. a second check valve; 324. a second bypass branch; 325. a third electromagnetic valve; 33. a heat regenerator; 34. a preheater; 351. a resistance member; 352. a heat collector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1 to 3, the present invention provides a two-phase fluid-based optical fiber laser thermal control device, which includes a primary side temperature control system and a secondary side pump-driven two-phase system for exchanging heat with the primary side temperature control system through a plate heat exchanger 10, wherein the primary side temperature control system includes a condenser 21, a first liquid storage tank 22, a throttle valve 231, and a compressor refrigeration pipeline and a pump-driven pipeline connected in parallel to the first main pipeline, and the secondary side pump-driven two-phase system includes a second pump 321, a second liquid storage tank 31, and a resistance element and a heat collector matching connection pipeline connected to the second main pipeline.
Specifically, a heat regenerator 33 is arranged on the liquid inlet pipeline and the liquid outlet pipeline of the second main body pipeline, and a preheater 34 is arranged on the liquid inlet pipeline between the heat regenerator 33 and the liquid inlet pipeline between the resistance part and the heat collector matching connection pipeline. Through the arrangement of the heat regenerator 33 and the preheater 34, the temperature control effect of the primary side temperature control system is combined, the liquid inlet temperature can be accurately controlled, the heat dissipation effect is ensured, and the power consumption of the preheater 34 can be calculated and designed according to the working condition of the system; in some embodiments of the present invention, when the temperature control requirement of the inlet liquid temperature is relatively wide, the preheater 34 may not be provided, or both the preheater 34 and the regenerator 33 may not be provided.
Specifically, a plurality of pipelines are arranged in the secondary side pump drive two-phase system, wherein the pipelines are matched and connected with the resistance part and the heat collector and are connected in parallel to form a multi-branch laser parallel pipeline. Through the matching design of the resistance part 351 and the heat collector 352 and the parallel design of a plurality of branches, the thermal control device can be used for heat dissipation of single laser equipment or a plurality of laser equipment, when the thermal control device is used for heat dissipation of single or a plurality of lasers with the same or similar power consumption, a constant pressure method is adopted for flow resistance matching, and the pressure fluctuation of each branch caused by power consumption fluctuation is far smaller than the total pressure drop of the branch on the premise that the heat collector 352 of each branch meets the heat dissipation of the maximum power consumption working condition, so that the flow of each branch meets the design requirement and the heat dissipation requirement of the lasers are met; when the power consumption of each laser that connects in parallel differs great, carry out flow resistance matching design to the resistance 351 of each branch road alone, combine to utilize the flow regulation and control setting of resistance 351, heat collector 352 and second pump 321 part to on constant voltage control's basis, regulate and control the pressure fluctuation that the branch road power consumption fluctuation caused through flow change, avoid certain branch road to produce the influence because of the pressure drop that the power consumption fluctuation arouses other branch roads, in order to guarantee the radiating effect of each branch road.
Specifically, the resistance 351 in each branch of the secondary side pump driving two-phase system can be a fluid connector (quick-break), a valve type pressure drop component or other mechanical elements.
Specifically, a second bypass branch 324 is connected in parallel to the second pump line, a third electromagnetic valve 325 is arranged on the bypass branch, and the second pump line and the bypass branch are connected in parallel and then connected to the second reservoir 31. The bypass branch 324 connected in parallel is arranged beside the second pump 321, so that the flow of the two-phase fluid loop can be adjusted in a large range, and the PQ curve of the second pump 321 is a gentle curve, that is, when the pressure drop changes very little, the flow can change greatly, so that the pressure fluctuation of each branch caused by power consumption fluctuation can be regulated and controlled through the flow change on the basis of constant pressure control, and the heat dissipation effect of each branch can be ensured. In addition, a heater is designed in the second liquid storage tank 31 and used for regulating and controlling the temperature and the pressure of the second liquid storage tank 31, so that the control of the system pressure and the system evaporation temperature is realized; in addition, the second liquid storage tank 31 is connected with the second main body pipeline, and when the pressure of the second liquid storage tank 31 is greater than the pressure of the second main body pipeline, the liquid cooling working medium of the second liquid storage tank 31 enters the pipeline system; when the pressure of the second liquid storage tank 31 is smaller than the pressure of the second main body pipeline, the liquid cooling working medium in the second main body pipeline enters the second liquid storage tank 31; the cooling working medium is a coolant, and the coolant is any one of R134a, R134yf, R410a and HFE 7000.
Specifically, a second filter 322 and a second check valve 323 are sequentially arranged on the second pump pipeline along the opposite direction of the flow of the cooling working medium, a standby pump pipeline is further arranged in the secondary side pump driving two-phase system, and the standby pump pipeline is connected in parallel with the second pump pipeline.
Specifically, a first electromagnetic valve 241 and a compressor 242 are sequentially arranged on the refrigerating pipeline of the compressor 242 along the direction away from the plate heat exchanger 10, and a second electromagnetic valve 251, a first check valve 252, a first filter 253 and a first pump 254 are sequentially arranged on the pump driving pipeline along the direction away from the plate heat exchanger 10.
Specifically, the first pump 254 and the second pump 321 are fluorine pumps, and variable frequency adjustment can be realized.
Specifically, in some embodiments of the present invention, according to practical situations, only a compressor refrigeration pipeline (fig. 2) or only a pump drive pipeline (fig. 3) may be disposed in the primary-side temperature control system, and when a compressor refrigeration mode is adopted, a first bypass branch 232 may be disposed through the throttle, so as to control the cooling capacity of the primary-side temperature control system.
The method for thermal control of a fiber laser based on two-phase fluid provided by the present invention is described below with reference to specific examples.
When the heat exchanger works, a cooling working medium in a secondary side pump driving two-phase system is driven by a second pump 321, is primarily heated by a heat regenerator 33, is precisely heated by a preheater 34, enables a feed liquid to be stably and stably kept at about 22 ℃, enters a heat collector 352, is cooled in the heat collector 352 to generate gas-liquid phase change, takes away heat through latent heat of gasification, is primarily cooled by the heat regenerator 33 on a liquid outlet pipeline, and then is transferred to a primary side temperature control system through a plate heat exchanger 10, and finally dissipates the heat in a corresponding refrigeration mode to realize a heat dissipation target; meanwhile, the cooled cooling working medium enters the second pump 321 through a pipeline, and the circulation is repeated in this way to dissipate the heat of the laser. In the heat dissipation treatment process of the laser, when the cooling working medium passes through the heat regenerator 33, the liquid inlet part performs primary heating by using the heat of the liquid outlet part, and the liquid outlet part performs primary cooling by using the cooling working medium in the liquid inlet pipeline, so that the heat is fully utilized.
In summary, in the optical fiber laser thermal control device and method based on two-phase fluid disclosed by the present invention, the primary side temperature control system is provided with two refrigeration modes, so as to select a compressor refrigeration mode or a pump drive refrigeration mode for heat dissipation treatment according to the change of the environmental temperature, and the two modes are used in combination, thereby reducing the working time of the compressor 242, prolonging the service life of the compressor, prolonging the service life of the thermal control device as a whole, and achieving the effect of energy saving. Meanwhile, the refrigerating of the primary side temperature control system and the primary heating of a heat regenerator 33 in a secondary side pump driving two-phase system and the precise heating of a preheater 34 are combined, so that the liquid inlet temperature is stably kept at 22 ℃, and the requirement on the liquid inlet temperature in the heat dissipation process of the laser is met. In addition, the heat control device of the invention can be selectively used for heat dissipation of a single laser device or a plurality of laser devices by the matching design of the resistance member 351 and the heat collector 352 and the parallel design of a plurality of branches in the secondary side pump-driving two-phase system, and meanwhile, two schemes of adopting a constant pressure method design by utilizing flow resistance matching and combining and utilizing the flow regulation and control design of the resistance member 351, the heat collector 352 and the second pump 321 part on the basis of constant pressure control can avoid the temperature out-of-control phenomenon caused by power consumption change of each branch and ensure the heat dissipation effect of each laser. According to the invention, the heat of the secondary side pump drive two-phase system is transferred to the primary side temperature control system through the plate heat exchanger 10 for heat dissipation, the primary side temperature control system and the secondary side pump drive two-phase system are independent and related to each other, each system can respectively carry out corresponding parameter adjustment according to the actual heat dissipation requirement, and meanwhile, the heat dissipation requirement of the laser is met through mutual matching, so that the structure is simple, the operation is convenient, high-efficiency heat dissipation can be realized, and the stable operation of the laser is ensured.
It should be noted that, in the optical fiber laser thermal control device and method based on two-phase fluid of the present invention, the heat exchanger is not limited to a plate heat exchanger, but can also be a heat exchanger in other high-efficiency forms; the coolant is not limited to R134a, R134yf, R410a, and HFE7000, but may be other coolants that can undergo a phase change; related sensors for monitoring pressure, temperature, flow and the like in the fiber laser thermal control device based on the two-phase fluid are not marked in the system and can be correspondingly arranged according to specific use requirements; the liquid inlet temperature can be specifically controlled according to actual use requirements so as to accurately control the liquid inlet temperature to any required temperature, and the method belongs to the protection scope of the invention.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (9)
1. A fiber laser thermal control device based on two-phase fluid is characterized in that: the secondary side pump driving two-phase system comprises a primary side temperature control system and a secondary side pump driving two-phase system which exchanges heat with the primary side temperature control system through a heat exchanger, wherein the primary side temperature control system comprises a condenser, a first liquid storage tank, a throttle valve and a compressor refrigerating pipeline and a pump driving pipeline which are sequentially connected onto a first main body pipeline, the compressor refrigerating pipeline and the pump driving pipeline are connected with the first main body pipeline after being connected in parallel, the secondary side pump driving two-phase system comprises a second pump, a second liquid storage tank, a resistance piece and a heat collector matching connection pipeline which are connected with a second main body pipeline, a second bypass branch is connected onto the second pump pipeline in parallel, a third electromagnetic valve is arranged on the second bypass branch, and the second pump pipeline and a parallel pipeline of the second bypass branch are connected with the second liquid storage tank.
2. The two-phase fluid-based fiber laser thermal control device according to claim 1, wherein: the heat exchanger is a plate heat exchanger; and heat regenerators are arranged on the liquid inlet pipeline and the liquid outlet pipeline of the second main body pipeline.
3. The two-phase fluid-based fiber laser thermal control device according to claim 2, wherein: and a preheater is arranged on the heat regenerator and a liquid inlet pipeline between the resistance part and the heat collector matching connection pipeline.
4. The two-phase fluid based fiber laser thermal control device of claim 1, wherein: the resistance part and the heat collector are connected in a matching mode and are arranged in a plurality of pipelines which are connected in parallel to form a multi-branch laser parallel pipeline.
5. The two-phase fluid based fiber laser thermal control device of claim 1, wherein: and a second filter and a second check valve are sequentially arranged on the second pump pipeline along the opposite direction of the flow of the cooling working medium.
6. The two-phase fluid based fiber laser thermal control device of claim 1, wherein: a heater is designed in the second liquid storage tank and used for regulating and controlling the temperature and the pressure of the second liquid storage tank.
7. The two-phase fluid based fiber laser thermal control device of claim 1, wherein: the cooling working medium of the secondary side pump driving two-phase system is a coolant, and the coolant is any one of R134a, R134yf, R410a and HFE 7000.
8. The two-phase fluid based fiber laser thermal control device of claim 2, wherein: the compressor is characterized in that a first electromagnetic valve and a compressor are sequentially arranged on the refrigerating pipeline of the compressor along the direction of the plate heat exchanger, and a second electromagnetic valve, a first check valve, a first filter and a first pump are sequentially arranged on the pump driving pipeline along the direction of the plate heat exchanger.
9. A two-phase fluid-based fiber laser thermal control method, which is processed by the two-phase fluid-based fiber laser thermal control device of any one of claims 1 to 8, and comprises the following steps: the secondary side pump drives a cooling working medium in the two-phase system to enter the heat collector under the driving of the second pump, the cooling working medium in the heat collector is subjected to gas-liquid phase change, heat is taken away through latent heat of vaporization, then the heat is transferred to the primary side two-phase temperature control system through the plate heat exchanger, and finally the heat is dissipated out to achieve the heat dissipation target; and the cooled cooling working medium enters the second pump through a pipeline, and the circulation is repeated in such a way, so that the heat dissipation of the laser is carried out.
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| CN216432146U (en) * | 2021-11-26 | 2022-05-03 | 天津商业大学 | Gas-liquid separation's cascade heat pump device in front of intermediate heat exchanger |
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