Phase change cold storage device and laser equipment
By utilizing the phase change heat storage device and the phase change of the heat transfer medium, the heat exchange area is increased, which solves the problem of excessive size and weight of existing cooling units, and achieves efficient cooling, making it suitable for outdoor and field use.
Patent Information
- Application Number
- CN202423313367.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing cooling units use ice water storage cooling, resulting in excessive size and weight, making them unsuitable for outdoor and field use.
A phase change heat storage device is adopted, which utilizes the phase change heat medium to absorb or release a large amount of heat when the liquid phase changes to the solid phase. The heat exchange area is increased by fins, reducing the demand for coolant.
It effectively reduces the size and weight of phase change cold storage devices, meets the needs of outdoor and field use, and improves cooling efficiency.
Smart Images
Figure CN223741026U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to refrigeration equipment technical field, especially phase change cold storage device and laser equipment. BACKGROUND
[0002] The instantaneous heat quantity is big when the laser emits light, and the working time is short, and is basically maintained within 300s, therefore the requirement to the cooling unit is higher.
[0003] In the related art, the cooling unit adopts the cold storage mode, when the laser does not work, the cooling unit carries out the cold storage, and when the laser works, the cooling unit releases the cold quantity to carry out the cooling, generally the cold storage cooling adopts the ice water, and a large power cooling needs a large amount of ice water, so that the volume and weight of the cooling unit and the laser equipment are big, and the on-site use demand is not met. UTILITY MODEL CONTENTS
[0004] The utility model aims at solving one of the technical problems in the prior art at least, for this purpose, the utility model provides a phase change cold storage device, which is beneficial to improve the refrigeration efficiency of the phase change cold storage device, reduce the volume and weight of the phase change cold storage device, and meet the on-site use demand.
[0005] The utility model further provides a laser equipment.
[0006] According to the phase change cold storage device of the first aspect embodiment of the utility model, the cold storage device comprises: a cold storage device, having a heat exchange chamber, comprising a first coil, a second coil, a phase change heat exchange medium and a plurality of fins arranged in the heat exchange chamber, the fins are connected with the first coil and the second coil, and the plurality of fins are in contact with the phase change heat exchange medium; a refrigeration flow path, the outlet end is communicated with the inlet end of the first coil, the inlet end is communicated with the outlet end of the first coil, the refrigeration flow path is configured to pass the refrigerant into the first coil to provide the cold quantity for the phase change heat exchange medium; a cold taking flow path, the outlet end is communicated with the inlet end of the second coil, the inlet end is communicated with the outlet end of the second coil, and the cold taking flow path is configured to pass the cooling liquid into the second coil to absorb the cold quantity of the phase change heat exchange medium.
[0007] The phase change cold storage device has at least the following beneficial effects: the phase change cold storage device comprises a cold accumulator, a heat exchange chamber is arranged in the cold accumulator, the heat exchange chamber can accommodate the first coil pipe, the second coil pipe, the phase change heat exchange medium and the fins, space is provided for the phase change of the phase change heat exchange medium between the liquid phase and the solid phase, the first coil pipe and the second coil pipe are connected with the fins, the heat exchange area of the first coil pipe and the second coil pipe is increased through the arrangement of the fins, and the plurality of fins are in contact with the phase change heat exchange medium, so that the heat exchange efficiency of the phase change heat exchange medium and the first coil pipe and the second coil pipe is improved, the phase change cold storage device comprises a refrigeration flow path, the outlet of the refrigeration flow path is communicated with the inlet end of the first coil pipe, the inlet end is communicated with the outlet end of the first coil pipe, the refrigeration flow path is configured to refrigerate the refrigerant and pass the refrigerant into the first coil pipe, the first coil pipe is in contact with the fins and the phase change heat exchange medium, so that cold energy is provided for the phase change heat exchange medium, the phase change heat exchange medium is changed from the liquid phase to the solid phase through heat release, the outlet end of the cold taking flow path is communicated with the inlet end of the second coil pipe, the inlet end is communicated with the outlet end of the second coil pipe, the cold taking flow path is configured to pass the cooling liquid into the second coil pipe, the second coil pipe is in contact with the fins and the phase change heat exchange medium, so that the phase change heat exchange medium is changed from the solid phase to the liquid phase through heat release, the cold energy released by the phase change heat exchange medium is supplied to the cooling liquid, the cooled cooling liquid can be supplied to the load end of the laser, so that the laser is cooled, and the phase change of the phase change heat exchange medium needs to absorb or release heat far more than the temperature rise of the phase change heat exchange medium itself, the phase change cold storage device provides cold energy through the phase change of the phase change heat exchange medium, so that the required cooling liquid can be greatly reduced, the volume and weight of the phase change cold storage device can be effectively reduced, and the laser equipment using the phase change cold storage device is suitable for outdoor and on-site use.
[0008] According to some embodiments of the present application, the plurality of fins are arranged at intervals, and the distance between the two adjacent fins is 1-3 mm.
[0009] According to some embodiments of the present application, the distance between the two adjacent fins is 2 mm.
[0010] According to some embodiments of the present application, a plurality of first coil pipes and a plurality of second coil pipes are arranged, the plurality of first coil pipes and the plurality of second coil pipes are arranged in a staggered manner along a first direction, and the plurality of fins are arranged along a second direction, the second direction being arranged at a right angle to the first direction.
[0011] According to some embodiments of the present application, the cold taking flow path comprises a main flow path and a first branch path, the main flow path comprises a mixer and a water pump which are communicated in sequence, the first branch path is connected in parallel between the outlet end of the water pump and the inlet end of the mixer, and the first branch path is communicated with the second coil pipe.
[0012] According to some embodiments of the utility model, the main flow path further comprises a three-way control valve, the three-way control valve comprises a first inlet, a second inlet and a mixing outlet, the first inlet is communicated with the outlet end of the water pump, the second inlet is communicated with the outlet end of the first branch, and the mixing outlet is communicated with the inlet end of the mixer.
[0013] According to some embodiments of the utility model, the main flow path is connected with an adjusting valve, and the adjusting valve is arranged between the water pump and the mixer.
[0014] According to some embodiments of the utility model, the refrigeration flow path comprises a compressor, a condenser and an expansion valve which are communicated in sequence, is used for refrigerating refrigerant, and the refrigerated refrigerant is introduced into the first coil pipe.
[0015] According to some embodiments of the utility model, the refrigeration flow path is connected with a liquid accumulator, and the liquid accumulator is arranged between the condenser and the expansion valve; and / or,
[0016] The refrigeration flow path is connected with a gas-liquid separator, and the gas-liquid separator is connected between the outlet end of the second coil pipe and the inlet end of the compressor.
[0017] The laser device according to the second aspect of the utility model comprises the phase change cold storage device according to any one of the first aspect.
[0018] The laser equipment has at least the following beneficial effects: the phase change cold storage device comprises a cold accumulator, the cold accumulator is internally provided with a heat exchange chamber, the heat exchange chamber can accommodate the first coil pipe, the second coil pipe, the phase change heat exchange medium and the fins, provides space for the phase change of the phase change heat exchange medium between the liquid phase and the solid phase, the first coil pipe and the second coil pipe are connected with the fins, the heat exchange area of the first coil pipe and the second coil pipe is increased through the arrangement of the fins, and the plurality of fins are in contact with the phase change heat exchange medium, so that the heat exchange efficiency of the phase change heat exchange medium and the first coil pipe and the second coil pipe is improved, the phase change cold storage device comprises a refrigeration flow path, the outlet of the refrigeration flow path is in communication with the inlet end of the first coil pipe, the inlet end is in communication with the outlet end of the first coil pipe, the refrigeration flow path is configured to refrigerate the refrigerant and pass the refrigerant into the first coil pipe, the cold quantity is provided for the phase change heat exchange medium through the contact of the first coil pipe with the fins and the phase change heat exchange medium, so that the phase change heat exchange medium is changed from the liquid phase to the solid phase through heat release, and the outlet end of the cold taking flow path is in communication with the inlet end of the second coil pipe, the inlet end is in communication with the outlet end of the second coil pipe, the cold taking flow path is configured to pass the cooling liquid into the second coil pipe, the phase change heat exchange medium is changed from the solid phase to the liquid phase through the contact of the second coil pipe with the fins and the phase change heat exchange medium, the cold quantity released by the phase change heat exchange medium is supplied to the cooling liquid, and the cooled cooling liquid can be supplied to the load end of the laser, so that the cooling of the laser is realized. Since the heat absorption or release required by the phase change of the phase change heat exchange medium far exceeds the temperature rise of the phase change heat exchange medium, the phase change cold storage device provides cold quantity through the phase change of the phase change heat exchange medium, so that the required cooling liquid can be greatly reduced, the volume and weight of the phase change cold storage device can be effectively reduced, and the laser equipment using the phase change cold storage device is suitable for outdoor and on-site use.
[0019] Additional aspects and advantages of the present application will be described in the following description, some of which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0020] The present application will be further described below in conjunction with the drawings and embodiments, wherein:
[0021] Figure 1 It is a layout schematic diagram of the phase change cold storage device of an embodiment of the present application;
[0022] Figure 2 It is a three-dimensional structure schematic diagram of the phase change cold storage device of an embodiment of the present application;
[0023] Figure 3 It is a structure schematic diagram of the fins of the cold accumulator of the phase change cold storage device and the first coil pipe and the second coil pipe;
[0024] Figure 4The structure diagram of the first coil pipe and the second coil pipe of the phase change cold accumulator of an embodiment of the utility model.
[0025] Reference Signs:
[0026] 100, cold accumulator; 110, fin; 120, first coil pipe; 130, second coil pipe;
[0027] 200, refrigeration flow path; 210, compressor; 220, condenser; 230, liquid accumulator; 240, expansion valve; 250, gas-liquid separator;
[0028] 300, cold taking flow path; 310, main flow path; 311, water pump; 312, mixer; 313, three-way control valve; 314, regulating valve; 320, first branch. DETAILED DESCRIPTION
[0029] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as a limitation on the utility model.
[0030] In the description of the utility model, it is understood that the orientation description, such as the upper, lower, etc. Indicative orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.
[0031] In the description of the utility model, the plurality of refers to two or more. If there is a description of the first, the second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.
[0032] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. Should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0033] Reference Figures 1 to 4 As shown in the drawings, the phase change cold accumulator of an embodiment of the utility model is applied to a load device with large instantaneous heat, such as a laser device. The phase change cold accumulator comprises a cold accumulator 100, a refrigeration flow path 200 and a cold taking flow path 300.
[0034] Reference Figure 1 ,Figure 3 and Figure 4 As shown in FIGS. 1, 2 and 3, the accumulator 100 has a heat exchange chamber, and the accumulator 100 comprises a first coil pipe 120, a second coil pipe 130, a phase-change heat exchange medium and a plurality of fins 110 arranged in an array. The heat exchange chamber can accommodate the first coil pipe 120, the second coil pipe 130, the phase-change heat exchange medium and the fins 110, and provides a space for the phase-change heat exchange medium to transform between a liquid phase and a solid phase.
[0035] Referring to FIGS. 1, 2 and 3, the first coil pipe 120 is arranged adjacent to the second coil pipe 130, and the first coil pipe 120 and the second coil pipe 130 are both connected with the fins 110, which are in the form of thin sheets for increasing the heat exchange area of the first coil pipe 120 and the second coil pipe 130. The plurality of fins 110 are in contact with the phase-change heat exchange medium, and specifically, the phase-change heat exchange medium is water. When the phase-change heat exchange medium is in a liquid phase, it can cover the plurality of fins 110, the first coil pipe 120 and the second coil pipe 130, thereby improving the heat exchange efficiency of the phase-change accumulator. Figure 1 Figure 3 Figure 4 Referring to FIGS. 1, 2 and 3, the outlet end of the refrigeration flow path 200 is in communication with the inlet end of the first coil pipe 120, and the inlet end of the first coil pipe 120 is in communication with the outlet end of the first coil pipe 120. The refrigeration flow path 200 is configured to refrigerate a refrigerant and pass the refrigerant into the first coil pipe 120. The refrigerant is in contact with the fins 110 and the phase-change heat exchange medium through the first coil pipe 120, and can provide cold energy to the phase-change heat exchange medium, so that the phase-change heat exchange medium can change from a liquid phase to a solid phase, and the phase-change heat exchange medium between two adjacent fins 110 solidifies into an ice layer.
[0036] Referring to FIGS. 1, 2 and 3, the outlet end of the refrigeration flow path 200 is in communication with the inlet end of the first coil pipe 120, and the inlet end of the first coil pipe 120 is in communication with the outlet end of the first coil pipe 120. The refrigeration flow path 200 is configured to refrigerate a refrigerant and pass the refrigerant into the first coil pipe 120. The refrigerant is in contact with the fins 110 and the phase-change heat exchange medium through the first coil pipe 120, and can provide cold energy to the phase-change heat exchange medium, so that the phase-change heat exchange medium can change from a liquid phase to a solid phase, and the phase-change heat exchange medium between two adjacent fins 110 solidifies into an ice layer. Figure 1 Figure 3 Figure 4 Referring to FIGS. 1, 2 and 3, the outlet end of the refrigeration flow path 200 is in communication with the inlet end of the first coil pipe 120, and the inlet end of the first coil pipe 120 is in communication with the outlet end of the first coil pipe 120. The refrigeration flow path 200 is configured to refrigerate a refrigerant and pass the refrigerant into the first coil pipe 120. The refrigerant is in contact with the fins 110 and the phase-change heat exchange medium through the first coil pipe 120, and can provide cold energy to the phase-change heat exchange medium, so that the phase-change heat exchange medium can change from a liquid phase to a solid phase, and the phase-change heat exchange medium between two adjacent fins 110 solidifies into an ice layer.
[0037] Referring to FIGS. 1, 2 and 3, the outlet end of the refrigeration flow path 200 is in communication with the inlet end of the first coil pipe 120, and the inlet end of the first coil pipe 120 is in communication with the outlet end of the first coil pipe 120. The refrigeration flow path 200 is configured to refrigerate a refrigerant and pass the refrigerant into the first coil pipe 120. The refrigerant is in contact with the fins 110 and the phase-change heat exchange medium through the first coil pipe 120, and can provide cold energy to the phase-change heat exchange medium, so that the phase-change heat exchange medium can change from a liquid phase to a solid phase, and the phase-change heat exchange medium between two adjacent fins 110 solidifies into an ice layer. Figure 1 Figure 3 Figure 4 Referring to FIGS. 1, 2 and 3, the outlet end of the refrigeration flow path 200 is in communication with the inlet end of the first coil pipe 120, and the inlet end of the first coil pipe 120 is in communication with the outlet end of the first coil pipe 120. The refrigeration flow path 200 is configured to refrigerate a refrigerant and pass the refrigerant into the first coil pipe 120. The refrigerant is in contact with the fins 110 and the phase-change heat exchange medium through the first coil pipe 120, and can provide cold energy to the phase-change heat exchange medium, so that the phase-change heat exchange medium can change from a liquid phase to a solid phase, and the phase-change heat exchange medium between two adjacent fins 110 solidifies into an ice layer.
[0038] Referring to FIGS. 1, 2 and 3, the outlet end of the refrigeration flow path 200 is in communication with the inlet end of the first coil pipe 120, and the inlet end of the first coil pipe 120 is in communication with the outlet end of the first coil pipe 120. The refrigeration flow path 200 is configured to refrigerate a refrigerant and pass the refrigerant into the first coil pipe 120. The refrigerant is in contact with the fins 110 and the phase-change heat exchange medium through the first coil pipe 120, and can provide cold energy to the phase-change heat exchange medium, so that the phase-change heat exchange medium can change from a liquid phase to a solid phase, and the phase-change heat exchange medium between two adjacent fins 110 solidifies into an ice layer. Figure 2 Figure 3 Figure 4 As shown, the conventional cooling unit achieves cooling of the load end of the laser through a large amount of ice water storage, and a large power cooling requires a large amount of ice water, resulting in a large volume and weight of the cooling unit, which is not conducive to transportation and is difficult to be applied to outdoor, on-site and other scenes.
[0039] Referring to Figure 1 , Figure 3 and Figure 4 , and the phase change cold storage device provided by the embodiment of the utility model utilizes the principle that the heat absorbed or released by the phase change of the phase change heat transfer medium far exceeds the temperature rise of itself, provides cold through the phase change of the phase change heat transfer medium, so that the required cooling liquid can be greatly reduced, the volume and weight of the phase change cold storage device can be effectively reduced, and the laser equipment using the phase change cold storage device can be applied to outdoor and on-site use.
[0040] Referring to Figure 1 , Figure 3 and Figure 4 , it can be understood that specifically, the first coil pipe 120 and the second coil pipe 130 are both provided with multiple, and the multiple first coil pipes 120 are all communicated with the refrigeration flow path 200, that is, the outlet end of the refrigeration flow path 200 can branch the refrigerant into the multiple first coil pipes 120, and the multiple first coil pipes 120 are contacted with the fins 110 and the phase change heat transfer medium, so as to improve the refrigeration efficiency of the phase change heat transfer medium, and the refrigerant flowing through the multiple first coil pipes 120 is converged into the refrigeration flow path 200 to be refrigerated again.
[0041] Referring to Figure 1 , Figure 3 and Figure 4 , the multiple second coil pipes 130 are all communicated with the cold taking flow path 300, that is, the outlet end of the cold taking flow path 300 can branch the cooling liquid into the multiple second coil pipes 130, and the multiple second coil pipes 130 are contacted with the fins 110 and the phase change heat transfer medium, so as to improve the cooling efficiency of the phase change heat transfer medium on the cooling liquid, so that the cooling efficiency of the phase change cold storage device can meet the cooling demand of the load end of the laser.
[0042] Referring to Figure 1 , Figure 3 and Figure 4 , it should be noted that the cooling liquid can be water, and the water flowing out of the second coil pipe 130 is cooled to become cold water to achieve cooling of the load end of the laser. Due to the large amount of heat released by the load end of the laser, the cooling liquid is heated to become hot water, and the hot water is again introduced into the second coil pipe 130 by the cold taking flow path 300, so that the hot water is again changed into cold water to realize the circulation of cold taking.
[0043] It should be noted that the refrigerant is ammonia, freon, propane and the like, which is a conventional technical means in the art and will not be described here.
[0044] Referring to Figure 2 , Figure 3 and Figure 4 , it can be understood that specifically, the plurality of first coils 120 and the plurality of second coils 130 are arranged in an interleaved manner, and the plurality of first coils 120 and the plurality of second coils 130 are arranged in an array along the width direction of the heat exchange chamber, and the plurality of fins 110 are arranged in an array along the length direction of the heat exchange chamber, and the adjacent two fins 110 are arranged in an interval, so as to increase the contact area of the fins 110 and the phase change heat transfer medium.
[0045] Referring to Figure 2 , Figure 3 and Figure 4 , it can be understood that the interval between the adjacent two fins 110 is 1-3 mm, and preferably, the interval between the adjacent two fins 110 is 2 mm.
[0046] Referring to Figure 2 , Figure 3 and Figure 4 , the phase change heat storage device can be controlled by the interval between the adjacent two fins 110, and through the contact of the phase change heat transfer medium with the fins 110 and the first coils 120, the cold energy in the first coils 120 can be quickly transferred to the phase change heat transfer medium, so that the phase change heat transfer medium located between the adjacent two fins 110 can be converted from a liquid phase to a solid phase. Since the phase change heat transfer medium is converted from a liquid phase to a solid phase, a large amount of heat will be released, so that the phase change heat transfer medium can achieve rapid cooling.
[0047] Referring to Figure 2 , Figure 3 and Figure 4 , similarly, the phase change heat storage device can be controlled by the interval between the adjacent two fins 110, and through the contact of the phase change heat transfer medium with the fins 110 and the second coils 130, the cold energy of the phase change heat transfer medium can be quickly transferred to the cooling liquid in the second coils 130. Since the heat exchange area of the fins 110 is large, and the ice layer between the adjacent two fins 110 is thin, the phase change heat transfer medium located between the adjacent two fins 110 can be converted from a solid phase to a liquid phase. Since the phase change heat transfer medium is converted from a solid phase to a liquid phase, a large amount of cold energy will be released, so that the cooling liquid can achieve rapid cooling, which is beneficial to improve the cooling efficiency of the phase change heat storage device, so as to meet the cooling demand of the load end of the laser device.
[0048] Referring to Figure 1 , Figure 2 and Figure 3As shown, it can be understood that the cold flow path 300 includes a main flow path 310 and a first branch path 320, the main flow path 310 includes a mixer 312 and a water pump 311 communicated in sequence, the first branch path 320 is connected in parallel between an outlet end of the water pump 311 and an inlet end of the mixer 312, and the first branch path 320 is communicated with the second coil pipe 130. The main flow path 310 can supply the cooling liquid to the load end of the laser through the mixer 312 to achieve cooling of the load end of the laser, and the cooling liquid flowing through the load end of the laser flows into the mixer 312.
[0049] Referring to Figure 1 , Figure 2 and Figure 3 , the water pump 311 can supply the cooling liquid to the load end of the laser to achieve cooling of the load end of the laser. The cooling liquid flowing through the load end of the laser is divided into two parts, the first part flows into the mixer 312 from the main flow path 310, and the second part flows into the first branch path 320, and since the first branch path 320 is communicated with the second coil pipe 130, the cooling of this part of the cooling liquid is achieved.
[0050] Referring to Figure 1 , Figure 2 and Figure 3 , the first part of the cooling liquid is mixed with the second part of the cooling liquid in the mixer 312, and the mixer 312 is specifically a water mixing tank. Since the first part of the cooling liquid does not flow through the regenerator 100, the first part of the cooling liquid is still hot water, and the second part of the cooling liquid is cooled to cold water after flowing through the regenerator 100. By mixing cold water and hot water, cold water for use by the load end of the laser is obtained, so that the cooling liquid that finally meets the supply liquid demand temperature is obtained, and is delivered to the load end of the laser by the water pump 311. In this way, the circulation of the cooling liquid is achieved, and the cooling efficiency of the cooling liquid is improved.
[0051] Referring to Figure 1 , Figure 2 and Figure 3 , it can be understood that the main flow path 310 further includes a three-way control valve 313, the three-way control valve 313 includes a first inlet, a second inlet and a mixed outlet, the first inlet is communicated with the outlet end of the water pump 311, the second inlet is communicated with the outlet end of the first branch path 320, and the mixed outlet is communicated with the inlet end of the mixer 312.
[0052] Referring to Figure 1 , Figure 2 and Figure 3 , specifically, the three-way control valve 313 can be an electric control valve, and by adjusting the ratio or flow rate of the cooling liquid flowing into the mixer 312 from the first inlet and the cooling liquid flowing into the mixer 312 from the second inlet, the temperature of the cooling liquid output to the load end of the laser can be adjusted, so as to improve the applicability of the phase change regenerator to different use scenarios.
[0053] Referring to Figure 1 , Figure 2 and Figure 3 , it can be understood that the main flow path 310 is connected with a regulating valve 314, which is arranged between the water pump 311 and the mixer 312. By controlling the regulating valve 314, the phase change cold storage device can change the flow of the cooling liquid supplied to the laser load end, so as to improve the applicability of the phase change cold storage device to different use scenarios.
[0054] Referring to Figure 1 , Figure 2 and Figure 3 , it can be understood that the refrigeration flow path 200 includes a compressor 210, a condenser 220 and an expansion valve 240 connected in sequence, for refrigerating the refrigerant and passing the refrigerated refrigerant into the first coil 120.
[0055] Referring to Figure 1 , Figure 2 and Figure 3 , the refrigeration flow path 200 is compressed by the compressor 210 to compress the refrigerant into high-temperature and high-pressure refrigerant vapor, which is discharged into the condenser 220 to condense, thereby reducing the temperature of the refrigerant. Then, the refrigerant is throttled and depressurized by the expansion valve 240 to reduce the refrigerant to a low-pressure and low-temperature refrigerant two-phase state, enter the cold storage device 100 to absorb heat, cool the water in the cold storage device 100 to ice, and finally the refrigerant becomes low-pressure and low-temperature refrigerant vapor after the heat absorption is completed. Return to the compressor 210, and the refrigeration flow path 200 circulates in this way.
[0056] Referring to Figure 1 , Figure 2 and Figure 3 , it can be understood that the refrigeration flow path 200 is connected with a liquid accumulator 230, which is arranged between the condenser 220 and the expansion valve 240, for buffering the refrigerant, so as to improve the stability of the refrigerant flow.
[0057] Referring to Figure 1 , Figure 2 and Figure 3 , the liquid accumulator 230 is mainly used to store the liquid state of the refrigerant, to give the required liquid supply amount of the cold storage device 100, to ensure the smooth operation of the refrigeration flow path 200, and the liquid accumulator 230 can adjust the amount of refrigerant circulating in the refrigeration flow path 200 according to the change of temperature. The liquid accumulator 230 also has a liquid sealing effect, which can prevent air from entering the low-pressure refrigeration compressor 210 to cause liquid hammer.
[0058] Referring to Figure 1 , Figure 2 and Figure 3As shown, it can be understood that the refrigerant flow path 200 is connected with a gas-liquid separator 250, which is connected between the outlet end of the second coil pipe 130 and the inlet end of the compressor 210.
[0059] Referring to Figure 1 , Figure 2 and Figure 3 As shown, the main function of the gas-liquid separator 250 is to achieve effective separation of gas and liquid, and generally utilizes the principle of centrifugal separation and wire mesh filtration to effectively separate the liquid in the gas-liquid mixture, so as to ensure that only gaseous refrigerant enters the compressor 210, which can avoid liquid refrigerant or lubricating grease entering the compressor 210, causing liquid hammer and damaging internal structural components of the compressor 210.
[0060] Referring to Figure 1 , Figure 2 and Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 Figure 1 Figure 2 Figure 3 FigureAs shown, the laser device of an embodiment of the utility model, including the phase change cold storage device as shown in any one of the above embodiment, this phase change cold storage device includes the cold storage 100, be equipped with the heat exchange chamber in the cold storage 100, the heat exchange chamber can supply first coil pipe 120, second coil pipe 130, phase change heat transfer medium and fin 110 contain, provide space for phase change heat transfer medium in the transformation of liquid phase and solid phase, first coil pipe 120 and second coil pipe 130 all are connected with fin 110, through the setting of fin 110, to increase the heat exchange efficiency of first coil pipe 120 and second coil pipe 130, and multiple fins 110 all contact with phase change heat transfer medium, to facilitate the heat exchange of phase change heat transfer medium and first coil pipe 120 and second coil pipe 130, the phase change cold storage device includes refrigeration flow path 200, the outlet of refrigeration flow path 200 with the import end of first coil pipe 120 communication, import end with the outlet end of first coil pipe 120 communication, refrigeration flow path 200 is configured to refrigerate refrigerant, and the refrigerant is passed into first coil pipe 120, through the contact of first coil pipe 120 and fin 110 and phase change heat transfer medium, to provide cold for phase change heat transfer medium, so that phase change heat transfer medium releases heat from liquid phase and becomes solid phase, and the outlet end of taking cold flow path 300 with the import end of second coil pipe 130 communication, import end with the outlet end of second coil pipe 130 communication, taking cold flow path 300 is configured to pass cooling liquid into second coil pipe 130, through the contact of second coil pipe 130 and fin 110 and phase change heat transfer medium, so that phase change heat transfer medium releases heat from solid phase and becomes liquid phase, the cold of phase change heat transfer medium release is supplied to cooling liquid, and the cooling liquid after cooling can be supplied to the load end of laser, to realize the cooling of laser, because the heat that phase change heat transfer medium needs to absorb or release during phase change far exceeds its own temperature rise, the phase change cold storage device provides cold through the phase change of phase change heat transfer medium, so that the required cooling liquid can be greatly reduced, the volume and weight of the phase change cold storage device can be effectively reduced, so that the laser device using the phase change cold storage device is suitable for outdoor, on-site use.
[0061] The utility model has been described in detail above in combination with the drawings, but the utility model is not limited to the above embodiment, within the knowledge scope of ordinary skill in the art, various changes can be made without departing from the purpose of the utility model.
Claims
1. A phase change cold accumulation device, characterized by, The application relates to a cold accumulator (100) and a refrigeration flow path (200) and a cold taking flow path (300). The cold accumulator (100) comprises a heat exchange chamber, a first coil pipe (120), a second coil pipe (130), a phase change heat exchange medium and a plurality of fins (110) arranged in the heat exchange chamber, the fins (110) are connected with the first coil pipe (120) and the second coil pipe (130), and the plurality of fins (110) are in contact with the phase change heat exchange medium. The refrigeration flow path (200) is configured to pass refrigerant into the first coil pipe (120) to provide cold energy for the phase change heat exchange medium. The cold taking flow path (300) is configured to pass cooling liquid into the second coil pipe (130) to absorb cold energy of the phase change heat exchange medium.
2. The phase change cold storage device according to claim 1, characterized by: The plurality of fins (110) are arranged at intervals, and the interval between two adjacent fins (110) is 1-3 mm.
3. The phase change cold storage device according to claim 2, characterized by: The interval between two adjacent fins (110) is 2 mm.
4. The regenerative cooling apparatus of claim 1, wherein: The first coil pipe (120) and the second coil pipe (130) are provided in plurality, the plurality of first coil pipes (120) and the plurality of second coil pipes (130) are arranged in a staggered manner along a first direction, and the plurality of fins (110) are arranged along a second direction, and the second direction is arranged at a right angle to the first direction.
5. The phase change cold accumulation device according to any one of claims 1 to 4, characterized by: The cold taking flow path (300) comprises a main flow path (310) and a first branch path (320), the main flow path (310) comprises a mixer (312) and a water pump (311) connected in sequence, the first branch path (320) is connected in parallel between the outlet end of the water pump (311) and the inlet end of the mixer (312), and the first branch path (320) is connected with the second coil pipe (130).
6. The phase change cold accumulation device according to claim 5, characterized by: The main flow path (310) further comprises a three-way control valve (313), the three-way control valve (313) comprises a first inlet, a second inlet and a mixing outlet, the first inlet is connected with the outlet end of the water pump (311), the second inlet is connected with the outlet end of the first branch path (320), and the mixing outlet is connected with the inlet end of the mixer (312).
7. The regenerative cooling apparatus of claim 5, wherein: The main flow path (310) is connected with an adjusting valve (314), and the adjusting valve (314) is arranged between the water pump (311) and the mixer (312).
8. The regenerative cooling apparatus of claim 1, wherein: The refrigeration flow path (200) comprises a compressor (210), a condenser (220) and an expansion valve (240) connected in sequence, so as to refrigerate the refrigerant and pass the refrigerated refrigerant into the first coil pipe (120).
9. The regenerative cooling apparatus of claim 8, wherein: The refrigeration flow path (200) is connected with a liquid accumulator (230), and the liquid accumulator (230) is arranged between the condenser (220) and the expansion valve (240); and / or, A gas-liquid separator (250) is connected to the refrigerant flow path (200), and is connected between the outlet end of the second coil pipe (130) and the inlet end of the compressor (210).
10. Laser device, characterized in that The phase change cold storage device as claimed in any one of claims 1 to 9 is included.