Laser equipment with cooling device with compact structure

Abstract

The utility model relates to the technical field of laser equipment, in particular to laser equipment with a compact-structure cooling device, which comprises a refrigerating system and a cooling system, the refrigerating system comprises a compressor, a first condenser, a second condenser, a throttle valve and an evaporator, and the refrigerating system comprises a first refrigerating loop and a second refrigerating loop; the cooling system comprises a water tank and a laser pump. According to the cooling device with a limited structure, the second condenser is compactly arranged to increase the heat exchange area of the condensation side, so that the refrigerating capacity and the energy efficiency of the cooling device are improved. According to the refrigerating system, the first refrigerating loop and the second refrigerating loop are arranged, the first condenser and the second condenser are arranged in the first refrigerating loop and the second refrigerating loop respectively, at the moment, the two condensers are connected in parallel, each condenser can independently process the heat exchange amount of the refrigerating system, and equivalently, the heat exchange amount of the condensing side is increased; and the stability and the reliability of the whole system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser equipment, and particularly to a laser equipment with a structurally compact cooling device. Background Technique

[0002] A laser equipment is a machine used for processing and welding materials. During the working process of the laser, a large amount of heat will be generated. If the heat is not properly controlled, it may affect the performance and service life of the laser. Therefore, many laser equipments are equipped with a refrigeration system, and most of the refrigeration systems are chillers. The chiller can cool the laser through the water circulation method to ensure that the laser works normally at a constant temperature or a set temperature, reduce the thermal stress inside the laser, and reduce the aging speed of the laser, thereby prolonging the service life of the laser.

[0003] In the prior art, some cooling devices have poor refrigeration effects on laser equipment. The cooling area and heat dissipation capacity of their condensers are limited, and they may not be able to meet the cooling requirements of laser equipment, resulting in insufficient cooling efficiency. And using a single condenser may not be able to stably control the temperature of the system, resulting in large temperature fluctuations, affecting the stability and reliability of the system. If the condenser fails, the entire system may be affected and need to be shut down for maintenance, affecting production efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a laser equipment with a structurally compact cooling device, at least to solve one of the problems raised in the above background technique.

[0005] The technical solution of the utility model is as follows:

[0006] A laser equipment with a structurally compact cooling device includes:

[0007] A refrigeration system, the refrigeration system includes a compressor, a first condenser, a second condenser, a throttle valve and an evaporator. The compressor is connected to the first condenser, the first condenser is connected to the throttle valve, the throttle valve is connected to the evaporator, and the evaporator is then connected to the compressor to form a first refrigeration circuit. The compressor is connected to the second condenser, the second condenser is connected to the throttle valve, the throttle valve is connected to the evaporator, and the evaporator is then connected to the compressor to form a second refrigeration circuit;

[0008] A cooling system, the cooling system includes a water tank, a pumping device and a laser pump. The water tank is connected to the pumping device, the pumping device is connected to the laser pump, the laser pump is connected to the evaporator, and the evaporator is then connected to the water tank to form a cooling circuit.

[0009] Further, the second condenser is a first plate heat exchanger.

[0010] Further, the second condenser is a copper tube with aluminum fins.

[0011] Further, the second condenser is a microchannel heat exchanger.

[0012] Further, the second condenser is a section of copper tube

[0013] Further, the pumping device is a water pump.

[0014] Further, the water pump is a direct current water pump or an alternating current water pump.

[0015] Further, the water pump and the water tank are connected through an anti - detachment interface.

[0016] Further, a fan is provided at the position of the first condenser for air - cooled refrigeration.

[0017] Further, the throttle valve is a capillary tube, a thermostatic expansion valve or an electronic expansion valve.

[0018] Further, the evaporator is a second plate heat exchanger, a titanium tube heat exchanger or a copper tube heat exchanger.

[0019] The present utility model provides a laser device with a structurally compact cooling device through improvement. Compared with the prior art, it has at least one of the following improvements and advantages:

[0020] 1. For the cooling device with limited structure, the present utility model increases the heat exchange area on the condensing side by setting a compact second condenser, thereby improving the refrigerating capacity and energy efficiency of the unit. Ensure the normal operation and stable performance of the laser device, ensure that sufficient refrigeration effect can be provided in the cooling device with limited structure, improve the refrigerating capacity and energy efficiency of the unit through the second condenser, ensure that the laser device works within a suitable temperature range, and increase the light output stability and service life of the laser device.

[0021] 2. The present utility model is provided with a first refrigeration circuit and a second refrigeration circuit. The first condenser and the second condenser are respectively arranged in the first refrigeration circuit and the second refrigeration circuit. When the two condensers are connected in parallel, each condenser can independently handle the heat of the refrigerant. Therefore, more refrigerant can be processed, and when one refrigeration circuit is damaged, the other can still be used. In addition, due to the design of the first refrigeration circuit and the second refrigeration circuit, it is equivalent to connecting the first condenser and the second condenser in parallel. At this time, the refrigerant can be split between the first condenser and the second condenser. Therefore, the heat of the refrigerant can be more evenly distributed, and the cold output of the first refrigeration circuit and the second refrigeration circuit can be adjusted separately according to the temperature requirement, thereby improving the stability, versatility and reliability of the whole system. Description of the Drawings

[0022] The present utility model will be further explained below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1 is the circuit diagram of the laser device with an efficient and stable cooling device according to the present utility model;

[0024] Figure 2 is the structural schematic diagram of the laser device with an efficient and stable cooling device according to the present utility model.

[0025] Explanation of the reference numerals in the drawings:

[0026] 11. Compressor; 12. First condenser; 13. Second condenser; 14. Throttle valve; 15. Evaporator; 122. Fan; 21. Water tank; 22. Laser pump; 23. Water pumping device; 231. Anti-disconnection interface. Specific embodiments

[0027] The present utility model will be described in detail below, and the technical solutions in the embodiments of the present utility model will be described clearly and completely.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0029] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. It should also be understood that the term "and / or" used in the description of the present application specification and the appended claims refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0030] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0032] The present utility model provides a laser device with a structurally compact cooling device through improvement. The technical solution of the present utility model is as follows:

[0033] As Figure 1 shown, a laser device with a structurally compact cooling device includes:

[0034] A refrigeration system, the refrigeration system includes a compressor 11, a first condenser 12, a second condenser 13, a throttle valve 14 and an evaporator 15. The compressor 11 is connected to the first condenser 12, the first condenser 12 is connected to the throttle valve 14, the throttle valve 14 is connected to the evaporator 15, and the evaporator 15 is then connected to the compressor 11 to form a first refrigeration circuit. The compressor 11 is connected to the second condenser 13, the second condenser 13 is connected to the throttle valve 14, the throttle valve 14 is connected to the evaporator 15, and the evaporator 15 is then connected to the compressor 11 to form a second refrigeration circuit.

[0035] By providing a first refrigeration circuit and a second refrigeration circuit, the first condenser 12 and the second condenser 13 are respectively arranged in the first refrigeration circuit and the second refrigeration circuit. When the two condensers are connected in parallel, each condenser can independently handle the heat of the refrigerant, so more refrigerant can be processed. In addition, since the first refrigeration circuit and the second refrigeration circuit are designed, it is equivalent to connecting the first condenser 12 and the second condenser 13 in parallel. At this time, the refrigerant can be split between the first condenser 12 and the second condenser 13, so the heat of the refrigerant can be more evenly distributed, thereby improving the stability and reliability of the entire system.

[0036] In the first refrigeration circuit, the compressor 11 compresses the gaseous coolant at normal temperature and pressure into a gaseous coolant at high temperature and pressure. After the first condenser 12 converts the gaseous coolant conveyed by the compressor 11 into a high-pressure liquid coolant, it is then conveyed to the throttle valve 14 for throttling and pressure reduction. After the throttle valve 14 reduces the pressure, it conveys the liquid coolant to the evaporator 15, and uses the evaporator 15 to inject water for heat exchange treatment. During the heat exchange treatment process, the evaporator 15 converts the liquid coolant into a gaseous coolant and conveys the gaseous coolant to the compressor 11 for cyclic refrigeration.

[0037] In the second refrigeration circuit, the compressor 11 compresses the gaseous coolant at normal temperature and pressure into a gaseous coolant at high temperature and pressure. After the second condenser 13 converts the gaseous coolant delivered by the compressor 11 into a high-pressure liquid coolant, it is then delivered to the throttle valve 14 for throttling and pressure reduction. After the throttle valve 14 reduces the pressure, it delivers the liquid coolant to the evaporator 15, where heat exchange treatment is carried out by injecting water into the evaporator 15. During the heat exchange treatment process, the evaporator 15 converts the liquid coolant into a gaseous coolant and delivers the gaseous coolant to the compressor 11 for cycle refrigeration.

[0038] A cooling system, the cooling system includes a water tank 21, a pumping device 23 and a laser pump 22. The water tank 21 is connected to the pumping device 23, the pumping device 23 is connected to the laser pump 22, the laser pump 22 is connected to the evaporator 15, and the evaporator 15 is then connected to the water tank 21 to form a cooling circuit. The pumping device 23 is used to increase the speed of the liquid in the water tank 21 delivered to the laser pump 22, so that the water tank 21 can cool or heat up the laser pump 22 faster.

[0039] In the cooling circuit, by connecting the evaporator 15 to the water tank 21, the liquid with a lower temperature is stored in the water tank 21, and then the liquid in the water tank 21 is delivered to the laser pump 22 to cool it down.

[0040] In some embodiments, the second condenser 13 is a first plate heat exchanger. The second condenser 13 uses a plate heat exchanger with high heat transfer efficiency. The flow channels of the plate heat exchanger are small, and the cross-section of the plate is complex, causing the flow direction and velocity of the fluid to change continuously, increasing the fluid disturbance, so the heat transfer coefficient is high.

[0041] In some embodiments, the second condenser 13 is a copper tube-aluminum fin type. The copper tube-aluminum fin type second condenser 13 enhances the heat transfer efficiency by increasing the heat dissipation area and the contact area between the fins and the tubes. In addition, the spacing of the fins is small and the finning coefficient is high, which can further improve the heat transfer effect.

[0042] In some embodiments, the second condenser 13 is a microchannel heat exchanger. The size of the microchannel is small, the flow velocity of the fluid in the channel is fast, and the heat transfer efficiency is high. The microchannel heat exchanger adopts advanced manufacturing processes, reducing material and resource waste, and at the same time optimizing the heat energy transfer in the fluid to achieve the purpose of saving energy.

[0043] In some embodiments, the second condenser is a section of copper tube, which can further improve the heat transfer efficiency.

[0044] In some embodiments, the cooling system further includes a pumping device 23, and the water tank 21 is connected to the laser pump 22 via the pumping device 23. The pumping device 23 is used to increase the speed at which the liquid in the water tank 21 is transported to the laser pump 22, so that the water tank 21 cools down or heats up the laser pump 22 more quickly.

[0045] In some embodiments, the pumping device 23 is a water pump. The water pump is a DC water pump or an AC water pump. The DC brushless water pump has a low power supply voltage, which can improve the safety of the laser equipment. The DC brushless water pump is usually connected with ceramic and carbon fiber graphite sleeves, and the friction generated during use is small, so it has the characteristic of being noise-free. When used with laser equipment, it can further reduce the noise generated when the laser equipment is working; the AC water pump has a low price and a long service life, which can reduce the production cost of the laser equipment and extend the service life of the laser equipment. DC water pumps and AC water pumps each have their own advantages. The type of water pump is selected according to the specific application requirements and scenarios. The specific type is not limited in this utility model.

[0046] In some embodiments, the water pump is connected to the water tank 21 via an anti-drop interface 231. The design of the anti-drop interface 231 can effectively prevent the pipeline connection from falling off, ensuring the stability and reliability of the pipeline connection. It can improve the stability and safety of the laser equipment pipeline system, extend its service life, and facilitate maintenance and replacement.

[0047] In some embodiments, a fan 122 is provided at the position of the first condenser 12 for air cooling. Air cooling can accelerate the heat dissipation of the first condenser 12 or take away the cold air around the first condenser 12.

[0048] In some embodiments, the throttle valve 14 is a capillary tube, a thermal expansion valve or an electronic expansion valve. The thermal expansion valve controls the opening of the expansion valve according to the superheat of the gaseous coolant; the electronic expansion valve has the characteristics of a large adjustment range, rapid and sensitive action, and stable and reliable, which meets the requirements of laser equipment.

[0049] In some embodiments, the compressor 11 is a DC compressor or an AC compressor. The DC compressor has the characteristics of low energy consumption, variable frequency, and easy and precise control, and is suitable for use in laser equipment.

[0050] In some embodiments, the evaporator 15 is a second plate heat exchanger, a titanium tube heat exchanger, or a copper tube heat exchanger.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A laser device with a compact cooling device, characterized in that: include: A refrigeration system, the refrigeration system comprising a compressor, a first condenser, a second condenser, a throttle valve and an evaporator, the compressor is connected to the first condenser, the first condenser is connected to the throttle valve, the throttle valve is connected to the evaporator, the evaporator is further connected to the compressor to form a first refrigeration circuit, the compressor is connected to the second condenser, the second condenser is connected to the throttle valve, the throttle valve is connected to the evaporator, the evaporator is further connected to the compressor to form a second refrigeration circuit; A cooling system, the cooling system comprises a water tank, a water pumping device and a laser pump, the water tank is connected to the water pumping device, the water pumping device is connected to the laser pump, the laser pump is connected to the evaporator, and the evaporator is further connected to the water tank to form a cooling loop.

2. A laser device with a compact cooling device according to claim 1, characterized in that: The second condenser is the first plate exchanger.

3. The laser device with a compact cooling device according to claim 1, characterized in that: The second condenser is a copper tube aluminum fin type.

4. The laser device with a compact cooling device according to claim 1, characterized in that: The second condenser is a microchannel heat exchanger.

5. The laser device with a compact cooling device according to claim 1, characterized in that ,The second condenser is a section of copper tube.

6. The laser device with a compact cooling device according to claim 1, characterized in that: The pumping device is a water pump, and the water pump is a DC water pump or an AC water pump.

7. The laser device with a compact cooling device according to claim 6, characterized in that: The water pump is connected to the water tank via an anti-detachment interface.

8. A laser device with a compact cooling device according to any one of claims 1 to 7, characterized in that: A fan is provided at the position of the first condenser for air cooling.

9. A laser device with a compact cooling device according to any one of claims 1 to 7, characterized in that: The throttle valve is a capillary tube, a thermal expansion valve or an electronic expansion valve.

10. A laser device with a compact cooling device according to any one of claims 1 to 7, characterized in that: The evaporator is a second plate exchanger, a titanium tube heat exchanger or a copper tube heat exchanger.

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