Switching device and switching system for laser source water cooling machine

Abstract

The utility model discloses a switching device and a switching system for a laser source water-cooling machine, the switching device comprises a first pipeline, a second pipeline, a first pressure tank, a second pressure tank and a controller, through the control of a first control valve and a second control valve, the rapid switching between a first water-cooling machine and a second water-cooling machine is realized; the controller controls the valve to reduce the switching time, the first pressure tank and the second pressure tank are communicated with the first water cooling machine and the second water cooling machine respectively, water temperature and water pressure fluctuation are reduced, the problem that the water pressure is too high or too low is effectively avoided, and the service life of the cooling system is prolonged; the other cooling-water machine can be rapidly connected with a pipe, continuous operation of the cooling system is ensured, the reliability of the system is improved, the shutdown time caused by faults of the cooling system is shortened by avoiding manual operation errors and improving the stability and reliability of the system, and the overall production efficiency of the pickling and rolling unit is improved.

Description

Technical Field

[0001] This application relates to the field of pickling and cold rolling technology, and in particular to a switching device and switching system for a laser source water chiller. Background Technology

[0002] In the pickling and rolling mill production process, the laser source is one of the key pieces of equipment, and its stable operation is crucial for ensuring production quality and efficiency. The laser source generates a large amount of heat during operation, thus requiring a highly efficient cooling system to maintain its normal operating temperature. Typically, to ensure the reliability of the cooling system, two chillers are provided for the laser source, one as the primary chiller and the other as a backup. However, in actual production, the laser source has extremely strict requirements for the cooling water temperature; only within a precise temperature range can the laser source maintain optimal performance. When the primary chiller malfunctions or needs to be switched to the backup chiller for other reasons, the backup chiller requires a certain amount of time to adjust its water temperature to the strict temperature range required by the laser source. This can lead to the laser source not receiving adequate cooling during the switchover process, thus preventing it from operating normally.

[0003] Currently, switching between water chillers requires manual valve operation, which frequently leads to system malfunctions due to valve misoperation. Furthermore, activating the backup water chiller requires a lengthy waiting period for the water temperature to reach the required range, and the water pressure in the system fluctuates significantly. This causes the laser source to malfunction, impacting production line efficiency. It not only interrupts the production process but also reduces the overall efficiency of the pickling and rolling mill, causing inconvenience and losses. Utility Model Content

[0004] In view of the deficiencies in the prior art, this application provides a switching device and switching system for a laser source water chiller to solve the problems of difficult water pressure control and poor reliability in the prior art laser source cooling system.

[0005] The above-mentioned objectives of this application are mainly achieved through the following technical solutions:

[0006] A switching device for a laser source water chiller, the switching device comprising:

[0007] The first pipeline has a first outlet and a first return outlet for connecting to the first chiller, and a first control valve is provided in the middle of the first pipeline;

[0008] The second pipeline has a second outlet and a second return outlet for connecting to the second chiller, and the first pipeline has a second control valve in the middle.

[0009] The first pressure tank is connected to the first pipeline and the second pipeline respectively, and the first pressure tank is provided with a first water inlet and a second water inlet for connecting external equipment.

[0010] The second pressure tank is connected to the first pipeline and the second pipeline respectively, and the second pressure tank is provided with a first drain port and a second drain port for connecting external equipment.

[0011] The controller connects to and controls the first control valve and the second control valve.

[0012] In an optional embodiment, a first branch is provided between the first pressure tank and the first pipeline, and a second branch is provided between the first pressure tank and the second pipeline.

[0013] In an optional implementation, a third control valve is provided on the first branch and a fourth control valve is provided on the second branch.

[0014] In an optional implementation, the controller is connected to control both the third control valve and the fourth control valve.

[0015] In an optional embodiment, a third branch is provided between the second pressure tank and the first pipeline, and a fourth branch is provided between the second pressure tank and the second pipeline.

[0016] In an optional implementation, a fifth control valve is provided on the third branch and a sixth control valve is provided on the fourth branch.

[0017] In an optional implementation, the controller is connected to control both the fifth control valve and the sixth control valve.

[0018] In an optional embodiment, the first pressure tank and the second pressure tank are respectively provided with drain ports.

[0019] In an optional embodiment, the switching device includes a main frame, and the first pipeline, the second pipeline, the first pressure tank, the second pressure tank, and the controller are detachably fixed to the main frame.

[0020] Based on the same inventive concept, this application also provides a switching system for a laser source water chiller, the switching system including the switching device as described above, and the switching device having two sets.

[0021] Compared with the prior art, the advantages of this application are:

[0022] The switching device described in this application is used for cooling operations of a laser source water chiller. The switching device includes a first pipeline, a second pipeline, a first pressure tank, a second pressure tank, and a controller. Through the control of a first control valve and a second control valve, rapid switching between a first chiller and a second water chiller is achieved. The controller can control the opening and closing of the valves according to preset conditions (such as water temperature and pressure), reducing switching time. The first and second pressure tanks are respectively connected to the first and second chillers, acting as a buffer during switching to reduce fluctuations in water temperature and pressure, effectively preventing problems of excessively high or low water pressure and extending the service life of the cooling system. The first and second pressure tanks can maintain a certain water pressure and temperature, ensuring that the cooling water temperature of the laser source does not fluctuate significantly during switching, thereby guaranteeing stable operation of the laser source. When one of the first or second chillers fails, the other chiller can quickly take over, ensuring uninterrupted operation of the cooling system, improving system reliability, and by avoiding human error, improving system stability and reliability, reducing downtime caused by cooling system failures, and improving the overall production efficiency of the pickling and rolling mill. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the switching system provided in an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the switching device provided in the embodiments of this application;

[0026] In the diagram: 100, switching device; 101, controller; 102, main frame; 201, first pipeline; 202, first outlet; 203, first return outlet; 204, first control valve; 301, second pipeline; 302, second outlet; 303, second return outlet; 304, second control valve; 401, first pressure tank; 402, first inlet; 403, second inlet; 501, second pressure tank; 502, first drain outlet; 503, second drain outlet; 504, sewage outlet; 601, first branch; 602, second branch; 603, third control valve; 604, fourth control valve; 701, third branch; 702, fourth branch; 703, fifth control valve; 704, sixth control valve. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the present invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are only for describing exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0028] like Figure 1 , Figure 2 As shown, Figure 1 This is a schematic diagram of the switching system provided in an embodiment of this application; Figure 2 This is a schematic diagram of the switching device 100 provided in the embodiments of this application; a switching device 100 for a laser source water chiller, the switching device 100 includes a first pipeline 201, a second pipeline 301, a first pressure tank 401, a second pressure tank 501, and a controller 101, wherein:

[0029] like Figure 1 , Figure 2 As shown, the first pipeline 201 has a first outlet 202 and a first return outlet 203 for connecting the first chiller, and a first control valve 204 is provided in the middle of the first pipeline 201;

[0030] The first pipeline 201 is used to connect to the first chiller, and the first pipeline 201 is equipped with a first outlet 202 and a first return outlet 203 to ensure that cooling water can flow smoothly into and out of the chiller. In order to achieve precise control of the cooling water flow rate, a first control valve 204 is also installed in the middle of the first pipeline 201. The first control valve 204 can adjust the water flow as needed, thereby meeting the cooling water flow requirements of the laser source at different operating stages.

[0031] The second pipeline 301 has a second outlet 302 and a second return outlet 303 for connecting to the second chiller, and the first pipeline 201 is provided with a second control valve 304 in the middle.

[0032] like Figure 1 , Figure 2 As shown, correspondingly, the second pipe 301 is used to connect to the second chiller. The second pipe 301 also has a second outlet 302 and a second return outlet 303. A second control valve 304 is installed in the middle of the second pipe 301, allowing the second pipe 301 to operate independently of the first pipe 201, thereby enabling rapid switching between the first and second chillers. When the first chiller malfunctions or requires maintenance, the second control valve 304 can be quickly opened, allowing the second chiller to be put into use in a timely manner, ensuring uninterrupted cooling of the laser source.

[0033] The first pressure tank 401 is connected to the first pipeline 201 and the second pipeline 301 respectively, and the first pressure tank 401 is provided with a first water inlet 402 and a second water inlet 403 for connecting external devices; the second pressure tank 501 is connected to the first pipeline 201 and the second pipeline 301 respectively, and the second pressure tank 501 is provided with a first drain outlet 502 and a second drain outlet 503 for connecting external devices.

[0034] like Figure 1 , Figure 2 As shown, the first pressure tank 401 and the second pressure tank 501 are buffer components in the switching device 100. The first pressure tank 401 is connected to the first pipe 201 and the second pipe 301, respectively, and is provided with a first water inlet 402 and a second water inlet 403 for connecting external equipment. This allows the first pressure tank 401 to stabilize the water pressure in the cooling system, especially during chiller switching, effectively reducing the impact of water pressure fluctuations on the laser source cooling effect. The second pressure tank 501 is connected to the first pipe 201 and the second pipe 301, respectively, and is provided with a first drain outlet 502 and a second drain outlet 503 for connecting external equipment. The second pressure tank 501 works in conjunction with the first pressure tank 401 to further optimize the flow path of the cooling water, ensuring smooth switching of cooling water between different pipes while maintaining stable water pressure and temperature.

[0035] Controller 101 connects to and controls the first control valve 204 and the second control valve 304. By monitoring key parameters such as water temperature and water pressure in the cooling system, controller 101 can adjust the opening and closing states of the control valves according to preset control logic and thresholds. This not only improves the automation level of the switching process but also effectively avoids system failures caused by human error, greatly enhancing the reliability and stability of the laser source cooling system. This allows the entire cooling system to respond more precisely to the cooling needs of the laser source, ensuring stable and reliable cooling support for the laser source.

[0036] In an optional embodiment, the switching device 100 of this application is used for the cooling operation of the laser source water chiller. The switching device 100 includes a first pipeline 201, a second pipeline 301, a first pressure tank 401, a second pressure tank 501, and a controller 101. Through the control of the first control valve 204 and the second control valve 304, rapid switching is achieved between the first chiller and the second water chiller. The controller 101 can control the opening and closing of the valves according to preset conditions (such as water temperature and pressure), reducing switching time. The first pressure tank 401 and the second pressure tank 501 are respectively connected to the first chiller and the second water chiller, which can act as a buffer during the switching process, reducing fluctuations in water temperature and pressure, effectively avoiding problems of excessively high or low water pressure, and extending the service life of the cooling system. The first pressure tank 401 and the second pressure tank 501 can maintain a certain water pressure and water temperature, ensuring that the cooling water temperature of the laser source does not fluctuate significantly at the moment of switching, thereby ensuring the stable operation of the laser source. When one of the first chillers and the second chiller fails, the other chiller can quickly take over, ensuring uninterrupted operation of the cooling system, improving system reliability, and enhancing system stability and reliability by avoiding human error. This reduces downtime caused by cooling system failures and improves the overall production efficiency of the pickling and rolling mill.

[0037] like Figure 1 , Figure 2 As shown, in an optional embodiment, a first branch 601 is provided between the first pressure tank 401 and the first pipeline 201, and a second branch 602 is provided between the first pressure tank 401 and the second pipeline 301.

[0038] The first branch 601 and the second branch 602 further optimize the flow path of the cooling water, allowing the first pressure tank 401 to be more flexibly connected and switched with the piping of the first chiller and the second water chiller. Through the first branch 601 and the second branch 602, the cooling water can be distributed and regulated between the first pressure tank 401 and the first pipe 201 or the second pipe 301, thereby better meeting the cooling needs of the laser source under different operating conditions.

[0039] like Figure 1 , Figure 2 As shown, in an optional embodiment, a third control valve 603 is provided on the first branch 601, and a fourth control valve 604 is provided on the second branch 602.

[0040] The inclusion of the third control valve 603 and the fourth control valve 604 enhances the precision management of the cooling system. These valves allow for precise control of the water flow in the first branch 601 and the second branch 602, enabling accurate adjustment of the cooling water flow between the first pressure tank 401 and the first and second water chillers. This precise flow control is crucial for maintaining the stable operation of the laser source cooling system, especially during chiller switching, effectively reducing fluctuations in water pressure and temperature.

[0041] like Figure 1 , Figure 2 As shown, in an optional embodiment, the controller 101 connects and controls the third control valve 603 and the fourth control valve 604. This functional extension of the controller 101 further enhances the control level of the entire switching device 100. By connecting and controlling the third control valve 603 and the fourth control valve 604, the controller 101 can automatically adjust the water flow status on the first branch 601 and the second branch 602 according to the monitored cooling system parameters. This not only improves the system's response speed and adjustment accuracy but also reduces the complexity and potential errors of manual operation, further enhancing the reliability and stability of the cooling system.

[0042] like Figure 1 , Figure 2 As shown, in an optional embodiment, a third branch 701 is provided between the second pressure tank 501 and the first pipeline 201, and a fourth branch 702 is provided between the second pressure tank 501 and the second pipeline 301.

[0043] The second pressure tank 501 is connected to the piping of the first chiller and the second water chiller via the third branch 701 and the fourth branch 702. This not only provides the second pressure tank 501 with similar functions to the first pressure tank 401, but also further enhances the redundancy and flexibility of the entire cooling system. Through the third branch 701 and the fourth branch 702, the second pressure tank 501 can be adjusted and distributed among different cooling water flow paths, thereby providing more stable and reliable cooling support for the laser source.

[0044] like Figure 1 , Figure 2 As shown, in an optional embodiment, a fifth control valve 703 is provided on the third branch 701, and a sixth control valve 704 is provided on the fourth branch 702.

[0045] The fifth control valve 703 and the sixth control valve 704 further enhance the flow regulation function of the cooling system. Through these valves, the water flow status of the third branch 701 and the fourth branch 702 can be precisely controlled, thereby achieving accurate regulation of the cooling water flow between the second pressure tank 501 and the first chiller and the second water chiller. This precise flow control is crucial for maintaining the stable operation of the cooling system, especially in the face of complex production demands and unexpected situations, ensuring that the cooling effect of the laser source remains unaffected.

[0046] like Figure 1 , Figure 2 As shown, in an optional embodiment, the controller 101 connects and controls the fifth control valve 703 and the sixth control valve 704. By connecting and controlling the fifth control valve 703 and the sixth control valve 704, the controller 101 can automatically adjust the water flow status on the third branch 701 and the fourth branch 702 according to the monitored cooling system parameters. This automated control method not only improves the system's response speed and adjustment accuracy but also reduces the complexity and potential errors of manual operation, further enhancing the reliability and stability of the cooling system.

[0047] like Figure 1 , Figure 2 As shown, in an optional embodiment, the first pressure tank 401 and the second pressure tank 501 are each provided with a drain port 504. This is to address the potential accumulation of impurities during long-term operation of the cooling system. By providing drain ports 504 on the first pressure tank 401 and the second pressure tank 501, impurities and dirt can be easily discharged, thus maintaining the cleanliness and efficient operation of the cooling system. Regularly draining the system through the drain ports 504 can effectively extend its service life, reduce system failures caused by impurities clogging it, and ensure the long-term stable operation of the laser source cooling system.

[0048] like Figure 1 , Figure 2 As shown, in an optional embodiment, the switching device 100 includes a main frame 102, and the first pipeline 201, the second pipeline 301, the first pressure tank 401, the second pressure tank 501 and the controller 101 are detachably fixed on the main frame 102.

[0049] The main frame 102 provides a stable support platform for the entire switching device 100, allowing for the orderly installation and fixation of all components. The detachable fixing method for the first pipeline 201, the second pipeline 301, the first pressure tank 401, the second pressure tank 501, and the controller 101 not only facilitates equipment installation and maintenance but also provides convenience for system upgrades and expansion. This makes the entire switching device 100 more flexible and easier to manage, better adapting to changes in different production environments and needs.

[0050] like Figure 1 , Figure 2 As shown, based on the same inventive concept, this application also provides a switching system for a laser source water chiller. The switching system includes the switching device 100 as described above, and the switching device 100 is provided in two sets. This further improves the redundancy and reliability of the entire cooling system to meet higher standards of industrial production requirements.

[0051] In practical implementation, the two sets of switching devices 100 can be arranged in parallel or series to adapt to different cooling system architectures and operating modes. Each set of switching devices 100 includes an independent first pipeline 201, a second pipeline 301, a first pressure tank 401, a second pressure tank 501, and a controller 101, enabling it to independently complete the switching operation between chillers. This not only ensures that if one set of switching devices 100 fails, the other set can quickly take over to maintain the normal operation of the cooling system, but also allows for flexible allocation of cooling load according to actual production needs, further optimizing the cooling effect.

[0052] For example, in a parallel arrangement, the two sets of switching devices 100 can simultaneously provide cooling water to the laser source, ensuring a more stable and sufficient supply of cooling water through reasonable flow distribution. In a series arrangement, one set of switching devices 100 can serve as the main cooling system, while the other set serves as a backup or auxiliary cooling system, further improving the system's reliability and flexibility.

[0053] Furthermore, the controllers 101 of the two sets of switching devices 100 can communicate and coordinate. Through the integrated control system, the operating modes of the two sets of switching devices 100 can be intelligently adjusted according to the actual operating status and cooling requirements of the laser source. For example, under light loads, only one set of switching devices 100 can be activated to save energy; while under heavy loads or with high cooling requirements, both sets of switching devices 100 can be activated simultaneously to ensure cooling effectiveness. This facilitates system expansion and upgrades. As production scale expands or equipment is upgraded, the configuration of the switching devices 100 can be gradually increased or optimized without interrupting existing production, further improving the performance and adaptability of the cooling system.

[0054] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of this utility model.

[0055] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0056] It should be understood that in the description of this utility model, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model 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 utility model.

[0057] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0058] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0059] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0060] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0061] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art.

Claims

1. A switching device for a water chiller of a laser source, characterized in that, The switching device includes: The first pipeline has a first outlet and a first return outlet for connecting to the first chiller, and a first control valve is provided in the middle of the first pipeline; The second pipeline has a second outlet and a second return outlet for connecting to the second chiller, and the first pipeline has a second control valve in the middle. The first pressure tank is connected to the first pipeline and the second pipeline respectively, and the first pressure tank is provided with a first water inlet and a second water inlet for connecting external equipment. The second pressure tank is connected to the first pipeline and the second pipeline respectively, and the second pressure tank is provided with a first drain port and a second drain port for connecting external equipment. The controller connects to and controls the first control valve and the second control valve.

2. The switching device for a water chiller of a laser source according to claim 1, wherein: A first branch is provided between the first pressure tank and the first pipeline, and a second branch is provided between the first pressure tank and the second pipeline.

3. The switching device for a water chiller of a laser source as claimed in claim 2, wherein: A third control valve is provided on the first branch, and a fourth control valve is provided on the second branch.

4. The switching device for a water chiller of a laser source as claimed in claim 3, wherein: The controller is connected to control the third control valve and the fourth control valve.

5. The switching device for a water chiller of a laser source as claimed in claim 1 or 2, wherein: A third branch is provided between the second pressure tank and the first pipeline, and a fourth branch is provided between the second pressure tank and the second pipeline.

6. The switching device for a water chiller of a laser source as claimed in claim 5, wherein: A fifth control valve is provided on the third branch, and a sixth control valve is provided on the fourth branch.

7. The switching device for a water chiller of a laser source as claimed in claim 6, wherein: The controller is connected to control the fifth control valve and the sixth control valve.

8. The switching device for a water chiller of a laser source as claimed in claim 1, wherein: The first pressure tank and the second pressure tank are respectively provided with a drain port.

9. The switching device for a water chiller of a laser source as claimed in claim 1, wherein: The switching device includes a main frame, and the first pipeline, the second pipeline, the first pressure tank, the second pressure tank, and the controller are detachably fixed on the main frame.

10. A switching system for a water chiller of a laser source, characterized in that: The switching system includes a switching device as described in any one of claims 1-9, and the switching device is provided in two sets.

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