Cooling device and processing apparatus

Abstract

The application discloses a cooling device and processing equipment, comprising a first container, a refrigeration module, a liquid supply branch, a liquid return branch and a liquid level control module. The first container is used for containing cooling liquid; the refrigeration module is used for cooling the cooling liquid in the first container; the liquid supply branch comprises a first pipeline and a first pump body, one end of the first pipeline is communicated with the first container, the other end of the first pipeline is provided with a liquid outlet, and the first pump body is used for driving the cooling liquid in the first container to enter the first pipeline and flow to the liquid outlet; the liquid return branch comprises a second container, a second pipeline, a first filter and a second pump body, the second container is used for receiving used cooling liquid, and the first filter is used for filtering solid impurities in the used cooling liquid; one end of the second pipeline is communicated with the second container, and the other end of the second pipeline is communicated with the first container. The cooling device can effectively control the liquid level in each container.

Description

Technical Field

[0001] This application relates to the field of laser processing equipment technology, and in particular to a cooling device and processing equipment. Background Technology

[0002] With the widespread application of laser processing in industry, the processing quality and production efficiency of workpieces have been effectively improved. However, laser processing generates a large amount of heat. If this heat is not dissipated in time, the workpiece is prone to deformation, leading to a decrease in processing accuracy.

[0003] Conventional gas cooling suffers from low cooling efficiency and secondary dust pollution, making it difficult to meet processing requirements. In contrast, laser waterjet systems integrate cooling water flow with the laser beam, allowing processing and cooling to occur simultaneously. Water, with its high specific heat capacity, absorbs a significant amount of heat during laser processing, effectively suppressing workpiece thermal deformation and ensuring processing accuracy.

[0004] In related technologies, cooling devices circulate cooling water. However, due to design flaws, the liquid level control of the containers used to temporarily store cooling water is insufficient, posing a risk of overflow or insufficient cooling water in each container, and resulting in a high risk of shutdown and maintenance of the cooling device. Utility Model Content

[0005] Therefore, this application proposes a cooling device that can effectively control the liquid level in each container.

[0006] This application also proposes a processing device having the above-mentioned cooling device.

[0007] The cooling device according to a first aspect embodiment of this application includes:

[0008] The first container is used to hold the coolant;

[0009] A refrigeration module for cooling the coolant in the first container;

[0010] The liquid supply branch includes a first pipeline and a first pump body. One end of the first pipeline is connected to the first container, and the other end of the first pipeline is provided with a liquid outlet. The first pump body is used to drive the coolant in the first container into the first pipeline and flow to the liquid outlet.

[0011] The return coolant branch includes a second container, a second pipeline, a first filter, and a second pump. The second container is used to receive the used coolant, and the first filter is used to filter out solid impurities in the used coolant. One end of the second pipeline is connected to the second container, and the other end of the second pipeline is connected to the first container. The second pump is used to drive the coolant in the second container into the second pipeline and flow to the first container.

[0012] A liquid level control module includes a first liquid level sensor, a second liquid level sensor, and a controller. The first liquid level sensor is used to detect the liquid level of the coolant in the second container to generate a first liquid level signal. The controller is used to receive the first liquid level signal to generate a first control signal. Upon receiving the first control signal, the second pump can start or stop. The second liquid level sensor is used to detect the liquid level of the coolant in the first container to generate a second liquid level signal. The controller is used to receive the second liquid level signal to generate an alarm signal indicating insufficient liquid level.

[0013] The cooling device according to the embodiments of this application has at least the following beneficial effects: the second pump body, upon receiving the first control signal, can start or stop; that is, when the liquid level in the second container is too high, the second pump body starts, thereby lowering the liquid level in the second container; when the liquid level in the second container is too low, the second pump body stops. The controller is used to receive the second liquid level signal to generate an alarm signal for insufficient liquid level. That is, since the total amount of coolant is generally fixed, but there is a certain loss (evaporation, splashing, etc.) during use, if the coolant level in the first container is still insufficient after the coolant in the second container is replenished from the coolant in the first container, it indicates that a portion of the coolant has been lost and the coolant needs to be replenished. During the use of the coolant, the liquid levels in both the first and second containers can be effectively controlled, which is beneficial to the normal operation of the cooling device.

[0014] According to some embodiments of this application, the first liquid level sensor includes:

[0015] A first liquid level switch is installed in the second container. When the first liquid level switch is triggered by the coolant in the second container, the first liquid level switch can generate a third liquid level signal. The controller is used to receive the third liquid level signal to generate a second control signal. The second pump body can start upon receiving the second control signal.

[0016] A second liquid level switch is installed in the second container and is located below the first liquid level switch; when the second liquid level switch is triggered by the coolant in the second container, the second liquid level switch can generate a fourth liquid level signal; the controller is used to receive the fourth liquid level signal to generate a third control signal; the second pump body can stop upon receiving the third control signal.

[0017] According to some embodiments of this application, the first liquid level switch includes one of a photoelectric liquid level switch, a capacitive liquid level switch, and a tuning fork liquid level switch, and the second liquid level switch includes one of a photoelectric liquid level switch, a capacitive liquid level switch, and a tuning fork liquid level switch.

[0018] According to some embodiments of this application, the second liquid level sensor includes one of a float-type liquid level sensor, a hydrostatic liquid level sensor, and an ultrasonic liquid level sensor.

[0019] According to some embodiments of this application, the cooling module includes:

[0020] Third pipeline;

[0021] A compressor, connected in the third pipeline, is used to compress gaseous refrigerant;

[0022] A condenser, connected in the third pipeline, is used to receive the refrigerant compressed by the compressor and condense the refrigerant into a liquid state.

[0023] A throttling valve is connected in the third pipeline. The throttling valve is used to receive the refrigerant after condensation by the condenser and to reduce the pressure of the refrigerant.

[0024] An evaporator, connected in the third pipeline, is used to receive the refrigerant after it has been throttled by the throttling valve, and to evaporate the liquid refrigerant into a gaseous state to absorb heat from the coolant in the first container.

[0025] According to some embodiments of this application, the cooling module further includes:

[0026] A temperature sensor is used to detect the temperature of the coolant in the first container to generate a temperature signal; the controller is used to receive the temperature signal to generate a fourth control signal; the compressor that receives the fourth control signal can start or stop, and the throttle valve that receives the fourth control signal can adjust the flow rate.

[0027] According to some embodiments of this application, the cooling module further includes:

[0028] The fourth pipeline includes a first end and a second end. The first end is connected to the third pipeline and is located between the compressor and the condenser. The second end is connected to the third pipeline and is located between the throttle valve and the evaporator.

[0029] An energy regulating valve is connected in the fourth pipeline. Upon receiving the fourth control signal, the energy regulating valve can regulate the flow rate of the fourth pipeline.

[0030] According to some embodiments of this application, the cooling module further includes:

[0031] A second filter is connected in the fourth pipeline. The second filter is located between the compressor and the condenser. The second filter is used to filter impurities in the refrigerant in the fourth pipeline.

[0032] According to some embodiments of this application, the liquid supply branch further includes:

[0033] The third filter is used to filter solid impurities in the coolant in the first pipeline.

[0034] The processing apparatus according to a second aspect embodiment of this application includes:

[0035] Processing equipment, used for processing workpieces;

[0036] In the aforementioned cooling device, the outlet is used to guide the coolant to the workpiece.

[0037] The processing equipment according to the embodiments of this application has at least the following beneficial effects: by using the above-described cooling device, it is beneficial to ensure that the processing equipment can continue to operate normally.

[0038] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0039] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0040] Figure 1 This is a schematic diagram of the cooling device according to the first embodiment of this application;

[0041] Figure 2 This is a schematic diagram of a cooling device according to a second embodiment of this application;

[0042] Figure 3 This is a schematic diagram of the processing equipment according to an embodiment of this application.

[0043] Reference numerals: First container 100, circulation pipeline 110, third pump body 120;

[0044] Refrigeration module 200, compressor 210, third pipeline 220, condenser 230, third filter 240, throttle valve 250, evaporator 260, temperature sensor 270, fourth pipeline 280, first end 281, second end 282, second filter 291, energy regulating valve 292;

[0045] Liquid supply branch 300, first pipeline 310, liquid outlet 311, first pump body 320, third filter 330;

[0046] Return liquid branch 400, second pipeline 410, second pump body 420, second container 430, first filter 440, inlet pipeline 450;

[0047] Liquid level control module 500, first liquid level sensor 510, first liquid level switch 511, second liquid level switch 512, second liquid level sensor 520, controller 530;

[0048] Processing equipment 600;

[0049] Processing workpiece 700. Detailed Implementation

[0050] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0051] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number, and "above," "below," "within," etc., are understood to exclude the stated number. If "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0053] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0054] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Reference Figure 1 A cooling device according to a first aspect embodiment of this application includes a first container 100, a refrigeration module 200, a liquid supply branch 300, a liquid return branch 400, and a liquid level control module 500. The first container 100 is used to hold coolant. The refrigeration module 200 is used to cool the coolant in the first container 100. The liquid supply branch 300 includes a first pipe 310 and a first pump body 320. One end of the first pipe 310 is connected to the first container 100, and the other end of the first pipe 310 is provided with an outlet 311. The first pump body 320 is used to drive the coolant in the first container 100 into the first pipe 310 and flow to the outlet 311.

[0056] The return coolant branch 400 includes a second pipe 410, a second pump body 420, a second container 430, and a first filter 440. The second container 430 is used to receive used coolant, and the first filter 440 is used to filter solid impurities from the used coolant. One end of the second pipe 410 is connected to the second container 430, and the other end of the second pipe 410 is connected to the first container 100. The second pump body 420 is used to drive the coolant in the second container 430 into the second pipe 410 and flow to the first container 100.

[0057] The liquid level control module 500 includes a first liquid level sensor 510, a second liquid level sensor 520, and a controller 530. The first liquid level sensor 510 detects the liquid level of the coolant in the second container 430 to generate a first liquid level signal. The controller 530 receives the first liquid level signal to generate a first control signal. Upon receiving the first control signal, the second pump 420 can start or stop. The second liquid level sensor 520 detects the liquid level of the coolant in the first container 100 to generate a second liquid level signal. The controller 530 receives the second liquid level signal to generate an alarm signal indicating insufficient liquid level.

[0058] The cooling device according to the embodiments of this application has at least the following beneficial effects: the second pump 420, upon receiving the first control signal, can start or stop; that is, when the liquid level in the second container 430 is too high, the second pump 420 starts, thereby lowering the liquid level in the second container 430; when the liquid level in the second container 430 is too low, the second pump 420 stops; the controller 530 is used to receive the second liquid level signal to generate an alarm signal for insufficient liquid level. That is, since the total amount of coolant is generally fixed, but there is a certain loss (evaporation, splashing, etc.) during use, if the coolant level in the first container 100 is still insufficient after being replenished by the coolant in the second container 430, it indicates that a portion of the coolant has been lost and needs to be replenished; during use, the liquid levels in both the first container 100 and the second container 430 can be effectively controlled, which is beneficial to the normal operation of the cooling device.

[0059] It should be noted that the first filter 440 is used to filter solid impurities in the used coolant. The first filter 440 can be installed either in the inlet pipe 450 of the second container 430 or in the second container 430 itself. Regarding the type of the first filter 440, it can be a screen filter, a membrane filter, a media filter, or even a sedimentation tank.

[0060] Specifically, the first liquid level signal can be a current signal, a voltage signal, or a switch signal, and the first control signal can be a relay contact signal or an analog signal. The first liquid level sensor 510, the controller 530, and the second pump body 420 can be connected electrically to achieve signal transmission.

[0061] Reference Figure 1 In some embodiments of this application, the first liquid level sensor 510 includes a first liquid level switch 511 and a second liquid level switch 512. The first liquid level switch 511 is installed in the second container 430. When the first liquid level switch 511 is triggered by the coolant in the second container 430, the first liquid level switch 511 can generate a third liquid level signal. The controller 530 is used to receive the third liquid level signal to generate a second control signal. The second pump 420, upon receiving the second control signal, can be started.

[0062] The second level switch 512 is installed in the second container 430 and is located below the first level switch 511. When the second level switch 512 is triggered by the coolant in the second container 430, it generates a fourth level signal. The controller 530 receives the fourth level signal to generate a third control signal. Upon receiving the third control signal, the second pump 420 can stop.

[0063] The first liquid level switch 511 and the second liquid level switch 512 together form the first liquid level sensor 510. The first liquid level switch 511 and the second liquid level switch 512 are triggered only when the liquid level reaches the corresponding height, and do not need to be continuously activated, which helps to reduce energy consumption.

[0064] Reference Figure 1 In the improved embodiment described above, the first liquid level switch 511 includes one of a photoelectric liquid level switch, a capacitive liquid level switch, and a tuning fork liquid level switch, and the second liquid level switch 512 includes one of a photoelectric liquid level switch, a capacitive liquid level switch, and a tuning fork liquid level switch.

[0065] Photoelectric level switches, capacitive level switches, and tuning fork level switches are all easy to install and have low maintenance costs, which helps to reduce the manufacturing and maintenance costs of cooling devices.

[0066] Reference Figure 1 In the improved embodiment described above, the second liquid level sensor 520 includes one of a float-type liquid level sensor, a hydrostatic liquid level sensor, and an ultrasonic liquid level sensor.

[0067] Float-type liquid level sensors, hydrostatic liquid level sensors, and ultrasonic liquid level sensors are all readily available, which helps to reduce the manufacturing cost of cooling devices.

[0068] Reference Figure 1 In some embodiments of this application, the refrigeration module 200 includes a compressor 210, a third pipeline 220, a condenser 230, a throttling valve 250, and an evaporator 260. The compressor 210 is connected to the third pipeline 220 and is used to compress gaseous refrigerant. The condenser 230 is connected to the third pipeline 220 and is used to receive the refrigerant compressed by the compressor 210 and condense the refrigerant into a liquid state. The throttling valve 250 is connected to the third pipeline 220 and is used to receive the refrigerant condensed by the condenser 230 and reduce the refrigerant pressure. The evaporator 260 is connected to the third pipeline 220 and is used to receive the refrigerant throttled by the throttling valve 250. The evaporator 260 is used to evaporate the liquid refrigerant into a gaseous state to absorb heat from the coolant in the first container 100.

[0069] Through the coordinated operation of compressor 210, third pipeline 220, condenser 230, throttle valve 250 and evaporator 260, the cooling of coolant can be continuously completed, resulting in high cooling efficiency.

[0070] Specifically, the evaporator 260 can be directly placed in the coolant within the first container 100, thereby absorbing heat from the coolant in the first container 100. Alternatively, the cooling device may also include a circulation pipe 110, in which a third pump 120 is installed. The third pump 120 continuously draws coolant from the first container 100, and after heat exchange with the evaporator 260, the drawn coolant is returned to the first container 100 through the circulation pipe 110.

[0071] Specifically, the refrigeration module 200 also includes a third filter 240, which is used to filter impurities (such as water, solid particles, or acids) in the refrigerant within the third pipe 220 to reduce damage to other components of the refrigeration module 200. The third filter 240 may be a filter drier.

[0072] According to some embodiments of this application, the refrigeration module 200 further includes a temperature sensor 270, which detects the temperature of the coolant in the first container 100 to generate a temperature signal. A controller 530 receives the temperature signal to generate a fourth control signal. Upon receiving the fourth control signal, the compressor 210 can start or stop, and the throttle valve 250, also receiving the fourth control signal, can adjust the flow rate.

[0073] By setting a temperature sensor 270, it is beneficial to form a closed-loop control of the coolant temperature, thereby accurately regulating the coolant temperature.

[0074] Specifically, the temperature signal can be a current signal, a voltage signal, or a digital signal, and the fourth control signal can be a digital signal or an analog signal.

[0075] Reference Figure 2 In the above embodiment, the refrigeration module 200 further includes a fourth pipeline 280 and an energy regulating valve 292. The fourth pipeline 280 includes a first end 281 and a second end 282. The first end 281 is connected to the third pipeline 220 and is located between the compressor 210 and the condenser 230. The second end 282 is connected to the third pipeline 220 and is located between the throttle valve 250 and the evaporator 260. The energy regulating valve 292 is connected to the fourth pipeline 280, and upon receiving a fourth control signal, the energy regulating valve 292 can regulate the flow rate of the fourth pipeline 280.

[0076] By setting up a fourth pipeline 280 and an energy regulating valve 292, the high-pressure gaseous refrigerant discharged from the compressor 210 can be directly introduced into the evaporator 260, while the amount of low-pressure liquid refrigerant introduced into the evaporator 260 can be adjusted more quickly, bypassing the condenser 230 and the expansion valve 250. This is beneficial for quickly and accurately controlling the cooling capacity of the evaporator 260 and reducing temperature fluctuations caused by inertia in the conventional cycle.

[0077] Reference Figure 2 In the improved embodiment described above, the refrigeration module 200 further includes a second filter 291, which is connected to the fourth pipeline 280 and located between the compressor 210 and the condenser 230. The second filter 291 is used to filter impurities in the refrigerant in the fourth pipeline 280.

[0078] After the second filter 291 filters impurities (such as water, solid particles, or acid) from the refrigerant in the fourth pipe 280, it can reduce damage to other components of the refrigeration module 200. Specifically, the second filter 291 can be a dryer filter.

[0079] Reference Figure 2 In some embodiments of this application, the liquid supply branch 300 further includes a third filter 330, which is used to filter solid impurities in the coolant in the first pipeline 310.

[0080] By installing a third filter 330, solid impurities in the coolant can be further reduced, thereby improving the quality of the coolant.

[0081] Specifically, the third filter 330 can be made using methods such as screen filtration, membrane filtration, or media filtration.

[0082] Reference Figure 3 The processing apparatus according to a second aspect embodiment of this application includes a processing device 600 and a cooling device, wherein the processing device 600 is used to process a workpiece 700. A coolant outlet 311 is used to guide coolant to the workpiece 700.

[0083] The processing equipment according to the embodiments of this application has at least the following beneficial effects: by using the above-described cooling device, it is beneficial to ensure that the processing equipment can continue to operate normally.

[0084] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A cooling device, characterized in that, include: The first container is used to hold the coolant; A refrigeration module for cooling the coolant in the first container; The liquid supply branch includes a first pipeline and a first pump body. One end of the first pipeline is connected to the first container, and the other end of the first pipeline is provided with a liquid outlet. The first pump body is used to drive the coolant in the first container into the first pipeline and flow to the liquid outlet. The return branch includes a second container, a second pipeline, a first filter, and a second pump body. The second container is used to receive the used coolant, and the first filter is used to filter out solid impurities in the used coolant. One end of the second pipeline is connected to the second container, and the other end of the second pipeline is connected to the first container. The second pump body is used to drive the coolant in the second container into the second pipeline and flow to the first container. A liquid level control module includes a first liquid level sensor, a second liquid level sensor, and a controller. The first liquid level sensor is used to detect the liquid level of the coolant in the second container to generate a first liquid level signal. The controller is used to receive the first liquid level signal to generate a first control signal. Upon receiving the first control signal, the second pump can start or stop. The second liquid level sensor is used to detect the liquid level of the coolant in the first container to generate a second liquid level signal. The controller is used to receive the second liquid level signal to generate an alarm signal indicating insufficient liquid level.

2. The cooling device according to claim 1, characterized in that, The first liquid level sensor includes: A first liquid level switch is installed in the second container. When the first liquid level switch is triggered by the coolant in the second container, the first liquid level switch can generate a third liquid level signal. The controller is used to receive the third liquid level signal to generate a second control signal. The second pump body can start upon receiving the second control signal. A second liquid level switch is installed in the second container and is located below the first liquid level switch; when the second liquid level switch is triggered by the coolant in the second container, the second liquid level switch can generate a fourth liquid level signal; the controller is used to receive the fourth liquid level signal to generate a third control signal; the second pump body can stop upon receiving the third control signal.

3. The cooling device according to claim 2, characterized in that, The first liquid level switch includes one of a photoelectric liquid level switch, a capacitive liquid level switch, and a tuning fork liquid level switch, and the second liquid level switch includes one of a photoelectric liquid level switch, a capacitive liquid level switch, and a tuning fork liquid level switch.

4. The cooling device according to claim 1, characterized in that, The second liquid level sensor includes one of a float-type liquid level sensor, a hydrostatic liquid level sensor, and an ultrasonic liquid level sensor.

5. The cooling device according to any one of claims 1 to 4, characterized in that, The cooling module includes: Third pipeline; A compressor, connected in the third pipeline, is used to compress gaseous refrigerant; A condenser, connected in the third pipeline, is used to receive the refrigerant compressed by the compressor and condense the refrigerant into a liquid state. A throttling valve is connected in the third pipeline. The throttling valve is used to receive the refrigerant after condensation by the condenser and to reduce the pressure of the refrigerant. An evaporator, connected in the third pipeline, is used to receive the refrigerant after it has been throttled by the throttling valve, and to evaporate the liquid refrigerant into a gaseous state to absorb heat from the coolant in the first container.

6. The cooling device according to claim 5, characterized in that, The cooling module also includes: A temperature sensor is used to detect the temperature of the coolant in the first container to generate a temperature signal; the controller is used to receive the temperature signal to generate a fourth control signal; the compressor that receives the fourth control signal can start or stop, and the throttle valve that receives the fourth control signal can adjust the flow rate.

7. The cooling device according to claim 6, characterized in that, The cooling module also includes: The fourth pipeline includes a first end and a second end. The first end is connected to the third pipeline and is located between the compressor and the condenser. The second end is connected to the third pipeline and is located between the throttle valve and the evaporator. An energy regulating valve is connected in the fourth pipeline. Upon receiving the fourth control signal, the energy regulating valve can regulate the flow rate of the fourth pipeline.

8. The cooling device according to claim 7, characterized in that, The cooling module also includes: A second filter is connected in the fourth pipeline. The second filter is located between the compressor and the condenser. The second filter is used to filter impurities in the refrigerant in the fourth pipeline.

9. The cooling device according to any one of claims 1 to 4, characterized in that, The liquid supply branch also includes: The third filter is used to filter solid impurities in the coolant in the first pipeline.

10. Processing equipment, characterized in that, include: Processing equipment, used for processing workpieces; The cooling device according to any one of claims 1 to 9, wherein the outlet is used to direct the coolant to the workpiece.

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