Rotational flow slag separation type ultra-fine grinding circulating water tank with thermoelectric refrigeration

Abstract

The invention relates to a rotational flow slag separation type ultra-fine grinding circulating water tank with thermoelectric refrigeration. The rotational flow slag separation type ultra-fine grinding circulating water tank comprises a main tank body, a rotational flow slag separation module, a thermoelectric refrigeration module, an intelligent control module and a circulating pipeline interface, the rotational flow slag separation module and the thermoelectric refrigeration module are integrally arranged in the main box body, and working liquid is output after being subjected to rotational flow separation and refrigeration adjustment in sequence; wherein the rotational flow slag separation module realizes solid-liquid separation by forming a rotational flow field, and the thermoelectric refrigeration module exchanges heat and cools working liquid through a semiconductor refrigeration element and a plurality of layers of heat exchange runners; the intelligent control module is used for monitoring the temperature and the separation state and cooperatively controlling the refrigeration process and the deslagging process; the circulating water tank can also be provided with a filtering assembly and a pressure difference detection unit so as to realize automatic backwashing. The high-efficiency purification and precise temperature control of the ultra-fine grinding liquid are realized, and the device has the advantages of compact structure, high response speed and high automation degree.

Description

Technical Field

[0001] This invention relates to the field of precision machining auxiliary equipment technology, and in particular to a device for circulating working fluid during ultra-precision machining, specifically a vortex slag-dispersing ultra-precision machining circulating water tank with thermoelectric cooling. Background Technology

[0002] In the field of precision machining, especially in the manufacturing of high-precision components such as miniature bearings, ultra-precision lamination, as the final finishing process, has a significant impact on the surface roughness, geometric accuracy, and service life of the workpiece. During this process, the ultra-precision lamination fluid is typically used as a lubricant, cooling, and chip removal medium in a circulating manner. Its temperature stability and cleanliness directly affect the stability and consistency of the machining quality. Therefore, configuring a high-performance circulation system for continuous purification and temperature control of the ultra-precision lamination fluid has become an important technical means to ensure machining quality.

[0003] In existing technologies, ultrafine grinding fluid circulation systems typically consist of multiple independent units, including a filtration device, a storage tank, and an external cooling system. The filtration device usually employs a filter cartridge or filter paper structure to intercept metal particles generated during the grinding process, while the cooling system typically uses a compressor to cool the circulating liquid. These systems are connected by pipelines to form a circulation loop, thus achieving the basic processing function of the ultrafine grinding fluid.

[0004] However, the aforementioned existing technologies still have the following problems: First, in terms of temperature control, traditional compressor refrigeration systems generally suffer from slow response and low temperature control accuracy. Furthermore, due to the long circulation pipeline, additional heat loss is easily generated, resulting in significant temperature fluctuations in the ultrafine grinding fluid during actual use. This affects the fluid viscosity and lubrication performance, leading to unstable processing quality. Second, in terms of impurity separation, relying solely on filter media is prone to clogging, requiring frequent maintenance. Moreover, the separation efficiency for small particles is limited, making it difficult to meet the high-precision machining requirements for fluid cleanliness. In addition, the metal structural components used in some systems may introduce magnetic interference, potentially affecting sensitive workpieces such as miniature bearings.

[0005] Furthermore, in existing technologies, the functional units are typically distributed, resulting in low system integration. This not only occupies a large space but also creates complex piping, increasing system operating resistance and the risk of failure, which is detrimental to the compact layout and long-term stable operation of automated production lines. Simultaneously, existing systems have low levels of automation in slag removal and maintenance, often relying on manual operation, making it difficult to meet the requirements for high reliability and low maintenance frequency under continuous production conditions.

[0006] Therefore, how to achieve efficient separation, precise temperature control, and automated operation control of ultrafine grinding fluid while ensuring the system's compact structure has become a pressing technical problem to be solved in this field. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide a cyclone slag-separating ultrafine grinding circulating water tank with thermoelectric cooling, so as to solve the problems of low temperature control accuracy, slow response and insufficient impurity separation efficiency of ultrafine grinding liquid in the prior art, as well as low system integration and poor operation stability.

[0008] To achieve the above objectives, the present invention provides the following technical solution: In one possible implementation, a vortex-type ultrafine grinding circulating water tank with thermoelectric cooling is characterized by comprising: Main housing 1, cyclone slag separation module 2, thermoelectric refrigeration module 3, intelligent control module 4, and circulation pipeline interface; The cyclone slag separation module 2 and the thermoelectric cooling module 3 are integrated inside the main box 1 and arranged sequentially along the flow direction of the ultra-fine grinding fluid (working fluid); The circulation pipeline interface includes an inlet 5 and an outlet 6. The working fluid enters the cyclone slag separation module 2 through the inlet 5 for solid-liquid separation, then flows into the thermoelectric cooling module 3 for temperature regulation, and is output through the outlet 6. The intelligent control module 4 is connected to the cyclone slag separation module 2 and the thermoelectric refrigeration module 3 respectively, and is used to monitor the temperature and separation status of the working fluid, and to coordinate the control of the refrigeration process and the slag discharge process based on the monitoring results.

[0009] In one possible implementation, the cyclone separation module 2 includes a cyclone cavity 21, which is provided with a tangential liquid inlet, a central overflow channel, and a conical settling structure at the bottom, so that the working fluid forms a cyclone field in the cavity and achieves solid-liquid separation.

[0010] In one possible implementation, the inner wall of the swirling cavity 21 is provided with a spiral guiding structure, the spiral guiding structure having a gradually changing spiral angle along the flow direction to enhance the swirling intensity and improve the fine particle separation efficiency.

[0011] In one possible implementation, the bottom of the conical settling structure is connected to an automatic slag discharge device 22, which is used to open under the action of a control signal to discharge deposited impurities.

[0012] In one possible implementation, the intelligent control module 4 is configured to control the automatic slag discharge device 22 to start slag discharge instantaneously according to a preset time or based on a deposition state signal.

[0013] In one possible implementation, the thermoelectric cooling module 3 includes a cooling cavity 31, a heat exchange channel disposed within the cooling cavity 31, and a semiconductor thermoelectric cooling element 32 that exchanges heat with the cooling cavity 31. The heat exchange channel is used to guide the working fluid to exchange heat with the cold end of the semiconductor thermoelectric cooling element 32.

[0014] In one possible implementation, the heat exchange channel is a multi-layer reciprocating channel structure formed by multiple flow guide baffles arranged in an alternating manner, so as to extend the flow path of the working fluid in the refrigeration chamber 31 and improve the heat exchange efficiency.

[0015] In one possible implementation, the hot end of the semiconductor thermoelectric cooling element 32 is connected to a heat dissipation assembly 33, which includes a heat sink and a forced air cooling device for forming a directional airflow at the heat sink.

[0016] In one possible implementation, the intelligent control module 4 includes a temperature detection unit and a control unit, wherein the control unit dynamically adjusts the operating state of the semiconductor thermoelectric cooling element 32 according to the deviation between the detected temperature and the set temperature.

[0017] In one possible implementation, the system further includes a filter assembly 7 disposed between the cyclone slag separation module 2 and the thermoelectric refrigeration module 3, and a detection unit for detecting the pressure difference across the filter assembly 7. The intelligent control module 4 triggers a backwashing operation on the filter component 7 when the pressure difference exceeds a preset threshold.

[0018] Based on the above technical solution, the present invention provides a cyclone slag-separating ultra-precision grinding circulating water tank with thermoelectric cooling. By integrating the cyclone slag separation module and the thermoelectric cooling module along the flow direction of the working fluid, the working fluid sequentially completes solid-liquid separation and temperature regulation. During this process, an intelligent control module coordinates the cooling process and the slag discharge process, achieving synchronous regulation of the working fluid temperature and cleanliness. Specifically, the cyclone slag separation module utilizes the cyclone field to efficiently separate solid particles, reducing the risk of contamination and blockage in subsequent heat exchange processes. Simultaneously, the coupling heat exchange through multi-layer reciprocating heat exchange channels and semiconductor thermoelectric cooling elements improves heat exchange efficiency and temperature control response speed. Combined with temperature detection and dynamic adjustment mechanisms, the working fluid temperature is maintained within a stable range. Furthermore, through an automatic slag discharge device and a condition monitoring-based control strategy, impurities are discharged in a timely manner and the filter components are self-cleaned. This ensures continuous system operation while reducing the frequency of manual maintenance, solving the problems of low temperature control accuracy, slow response, insufficient impurity separation efficiency, low system integration, and poor operational stability in existing technologies for ultra-precision grinding fluids. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a cyclone slag-dispersing ultra-precision grinding circulating water tank with thermoelectric cooling according to the present invention; Figure 2 This is a schematic diagram illustrating the structure and working process of the cyclone slag separation module, filter assembly, and thermoelectric refrigeration module in this invention.

[0020] Explanation of reference numerals in the attached figures: Main chamber 1; cyclone slag separation module 2; cyclone cavity 21; automatic slag discharge device 22; thermoelectric refrigeration module 3; refrigeration cavity 31; semiconductor thermoelectric refrigeration element 32; heat dissipation assembly 33; intelligent control module 4; inlet 5; outlet 6; filter assembly 7. Detailed Implementation

[0021] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the scope of protection of the present invention.

[0022] It should be noted that, where there is no conflict, the various embodiments of the present invention and the technical features thereof can be combined with each other. After reading this specification, those skilled in the art can make adaptive adjustments or equivalent substitutions to the structural form, connection relationship, control method, and parameter settings of the present invention according to actual application needs. However, as long as they do not depart from the technical concept of the present invention, they should be considered to fall within the scope of protection claimed by the present invention.

[0023] The following combination Figure 1 and Figure 2 This invention provides a detailed description of the overall structure, slag separation module, slag discharge control method, thermoelectric cooling module, heat dissipation structure, intelligent control module, filtration and self-cleaning structure, and system operation process of a cyclone slag-distributing ultra-precision circulating water tank with thermoelectric cooling.

[0024] I. Overall Structure Description (in conjunction with...) Figure 1 ) In one implementation, such as Figure 1 As shown, the present invention provides a vortex slag separation type ultra-precision circulating water tank with thermoelectric cooling, including a main tank body 1, a vortex slag separation module 2, a thermoelectric cooling module 3, an intelligent control module 4, and a circulation pipeline interface.

[0025] The main housing 1 is used to house the various functional modules and form a working fluid circulation and processing space. Preferably, the main housing 1 is a sealed structure, and its shell can be made of metal material, with a corrosion-resistant coating on the inner wall to meet the requirements of long-term circulation of ultrafine grinding fluid, and to reduce the possibility of liquid evaporation and external impurities entering the system, thereby improving the stability and reliability of the system operation.

[0026] The cyclone slag separation module 2 and the thermoelectric cooling module 3 are sequentially arranged inside the main tank 1 along the flow direction of the working fluid, allowing the working fluid to complete slag separation and temperature regulation sequentially within the same tank space. This integrated arrangement reduces intermediate transmission links, shortens the flow path, and minimizes energy loss of the working fluid during transmission. Preferably, the cyclone slag separation module 2 and the thermoelectric cooling module 3 are connected through internal flow channels within the main tank 1 to form a continuous fluid pathway.

[0027] The circulation pipeline interface includes an inlet 5 and an outlet 6, which are used to connect to external ultra-precision grinding equipment to achieve the circulation of the working fluid. Inlet 5 is used to introduce return working fluid from the processing equipment, and outlet 6 is used to re-transport the treated working fluid back to the processing equipment. In one embodiment, inlet 5 is located near the cyclone slag separation module 2, and outlet 6 is located near the thermoelectric cooling module 3, so that the working fluid flows sequentially through the cyclone slag separation module 2 and the thermoelectric cooling module 3 in a predetermined direction, thereby ensuring the rationality of the overall flow path.

[0028] After entering the main tank 1 through inlet 5, the working fluid first flows into the cyclone separator 2 for solid-liquid separation, which initially removes solid particles, grinding debris, or impurities entrained in the working fluid. Subsequently, the separated working fluid flows into the thermoelectric cooling module 3, where it undergoes cooling or temperature regulation before being output through outlet 6, forming a closed-loop circulation system. This allows for continuous purification and temperature control of the working fluid within the same circulating water tank, which is beneficial for improving the liquid quality and temperature control accuracy during ultra-precision grinding.

[0029] Furthermore, the intelligent control module 4 is electrically connected to the cyclone slag separation module 2 and the thermoelectric cooling module 3, respectively, for unified monitoring and control of the system's operating status. In one embodiment, the intelligent control module 4 can be located on the outside of the main housing 1, or integrated into an independent installation space inside the main housing 1, to facilitate equipment layout, maintenance, and heat dissipation management. The intelligent control module 4 can coordinate and control the slag separation process and the cooling process according to the system's operating status, thereby improving the overall automation level of the system.

[0030] In a further embodiment, the main housing 1 may also be provided with an inspection port, a slag discharge port, and a fluid replenishment port for system maintenance, impurity discharge, and working fluid replenishment. The fluid replenishment port can be connected to an external fluid replenishment device to achieve automatic replenishment of the working fluid, thereby improving the system's continuous operation capability; the slag discharge port can be used to discharge impurities deposited during the cyclone separation process, reducing the accumulation of impurities within the system; and the inspection port facilitates the inspection, cleaning, and maintenance of the various functional modules inside the main housing 1.

[0031] In a preferred embodiment, the diameter of the swirling cavity 21 is 50mm to 200mm, and the cone angle of the conical sedimentation structure is 30° to 60°, so as to improve the particle sedimentation efficiency while ensuring the swirling intensity.

[0032] In one embodiment, the flow rate of the working fluid in the cyclone separation module 2 is 0.5 m / s to 3 m / s, so as to balance separation efficiency and system pressure loss.

[0033] In one embodiment, the filtration component 7 has a filtration accuracy of 5μm to 50μm and is used to further retain fine particles after cyclone separation.

[0034] In one embodiment, the thermoelectric cooling module 3 can control the working fluid temperature within the range of 15°C to 30°C, and can be set and adjusted according to process requirements.

[0035] Through the above structural design, the present invention integrates the cyclone slag separation function and the thermoelectric cooling function into the same main tank 1, so that the working fluid can be continuously processed in a relatively compact space. This can effectively reduce the system footprint, reduce the complexity of external pipelines, and improve the integration and operational reliability of the whole machine. It is suitable for ultra-precision machining scenarios with high requirements for the cleanliness and temperature stability of the working fluid.

[0036] II. Implementation Method of Cyclone Slag Separation Module (Combined with...) Figure 2 ) In one implementation, such as Figure 2 As shown, the cyclone separation module 2 includes a cyclone cavity 21, which forms a separation space for the rotating flow of the working fluid.

[0037] Specifically, the cyclone cavity 21 is provided with a tangential inlet, a central overflow channel, and a conical settling structure at the bottom. After the working fluid enters the cyclone cavity 21 through the tangential inlet, a high-speed rotating cyclone field is formed inside the cavity. Under the action of centrifugal force, the denser solid particles migrate to the outside and bottom of the cavity, while the cleaner liquid moves upward along the central region and flows out through the central overflow channel, thereby achieving solid-liquid separation.

[0038] Furthermore, to improve the swirling intensity and separation efficiency, in one embodiment, the inner wall of the swirling cavity 21 is provided with a spiral guiding structure. The spiral guiding structure gradually changes its spiral angle along the flow direction of the working fluid, causing the working fluid entering the cavity 21 to form a strong swirling tendency in the initial stage, and further stabilizing the swirling state during subsequent flow, thereby enhancing the separation ability of fine particles. Through this structural design, the separation effect of fine abrasive particles or suspended impurities can be effectively improved, and the cleanliness of the circulating working fluid can be improved.

[0039] In a further embodiment, a conical settling structure at the bottom of the swirling cavity 21 is used to collect solid particles separated during the swirling process. Because the conical structure has a guiding effect, it can concentrate and guide the settling particles to the bottom region, preventing the particles from being rolled up again within the cavity, thereby improving separation stability.

[0040] Preferably, an automatic slag discharge device 22 is connected to the bottom of the conical settling structure. The automatic slag discharge device 22 is activated by a control signal to discharge impurities deposited at the bottom outside the main tank 1, thereby preventing long-term accumulation of impurities within the system and ensuring effective separation. In one embodiment, the automatic slag discharge device 22 may employ an electrically controlled valve structure or an electric slag discharge mechanism to achieve rapid opening and closing.

[0041] Furthermore, the automatic slag discharge device 22 is electrically connected to the intelligent control module 4. The intelligent control module 4 can control the automatic slag discharge device 22 to perform instantaneous slag discharge operation according to a preset time or sedimentation status signal, thereby achieving periodic or on-demand slag discharge while ensuring continuous system operation. In this way, the frequency of manual maintenance can be reduced and the degree of system automation can be improved.

[0042] In one optional embodiment, the outlet of the cyclone separation module 2 is connected to the internal flow channel of the main housing 1, so that the working fluid after cyclone separation can flow smoothly into the subsequent thermoelectric refrigeration module 3 for further processing, thereby forming a continuous processing flow.

[0043] Through the above structural design, the cyclone slag separation module 2 can achieve efficient separation of solid particles in the working fluid without the need for additional filter elements or complex mechanical structures. It has the advantages of simple structure, high separation efficiency and adaptability to continuous operation conditions, providing a relatively clean working fluid condition for subsequent temperature regulation, thereby improving the overall treatment performance of the circulating water tank.

[0044] In one embodiment, the swirling cavity 21 or its inner wall guiding structure is made of an antimagnetic material, preferably an engineering plastic or composite material, such as polyoxymethylene (POM), polytetrafluoroethylene (PTFE) or other corrosion-resistant polymer materials, to avoid magnetic interference during the processing of the micro-bearing, while improving corrosion resistance and reducing impurity adhesion.

[0045] Compared to traditional filtration methods, pre-separation achieved through swirling flow can effectively reduce the load on subsequent filtration components, thereby reducing the risk of clogging and extending the service life of the filtration components.

[0046] III. Slag Discharge Control Implementation Methods In one embodiment, the slag discharge control function of the present invention is mainly realized by the cooperation of the intelligent control module 4 and the automatic slag discharge device 22. The automatic slag discharge device 22 is set at the bottom of the conical settling structure of the cyclone slag separation module 2 and is used to discharge the solid impurities deposited in the bottom area during the cyclone separation process in a timely manner, so as to maintain the separation capacity of the cyclone slag separation module 2 and the continuous operation stability of the system.

[0047] Specifically, after the working fluid enters the main tank 1 through inlet 5, it first flows into the cyclone cavity 21 within the cyclone separation module 2. Under the action of the cyclone field, larger particles, abrasive debris, and other high-density impurities in the working fluid gradually migrate towards the outer periphery and bottom of the cyclone cavity 21, and are guided by the conical settling structure to collect in the bottom deposition area. As the system continues to operate, the amount of impurities deposited at the bottom gradually increases. To avoid excessive deposited impurities affecting the stability of the cyclone field and subsequent separation efficiency, the intelligent control module 4 controls the automatic slag discharge device 22 to discharge the bottom deposited impurities at appropriate times.

[0048] In one embodiment, the intelligent control module 4 is configured to control the automatic slag removal device 22 to open according to a preset time. Specifically, the slag removal cycle can be preset according to the degree of contamination of the working fluid, the processing load, the system circulation flow rate, or empirical operating parameters. When the preset slag removal time is reached, the intelligent control module 4 sends a control signal to the automatic slag removal device 22, causing the automatic slag removal device 22 to open instantaneously, thereby removing impurities deposited at the bottom of the conical settling structure; after the slag removal is completed, the automatic slag removal device 22 is quickly shut off to reduce the loss of the working fluid and maintain the stable operation of the fluid system inside the main tank 1.

[0049] In another embodiment, the intelligent control module 4 can also control the automatic slag discharge device 22 to start slag discharge based on the deposition state signal. The deposition state signal can be provided by a detection unit located at the corresponding position of the cyclone separation module 2, reflecting the degree of impurity deposition at the bottom, the clogging trend in the slag discharge area, or changes in the cyclone separation state. When the intelligent control module 4 determines that the deposition state signal meets preset conditions, it controls the automatic slag discharge device 22 to start, thereby achieving on-demand slag discharge. In this way, the slag discharge process can better match the actual operating conditions of the system, thus balancing the timeliness of slag discharge with the economic efficiency of system operation.

[0050] Preferably, the automatic slag discharge device 22 adopts a fast-response structure to suit instantaneous slag discharge operation. By using a short-term opening method, the concentrated distribution characteristics of impurities within the deposition area can be utilized to preferentially discharge high-concentration impurities, eliminating the need for prolonged opening of the slag discharge passage, thereby reducing the amount of working fluid discharged and improving slag discharge efficiency. Furthermore, after the automatic slag discharge device 22 is closed, the cyclone separation module 2 can continue to maintain normal cyclone separation operation without interrupting the operation of the entire circulating water tank.

[0051] In a further embodiment, the intelligent control module 4 can coordinate the slag discharge control process with the operating status of the thermoelectric cooling module 3. For example, when performing slag discharge operation, the intelligent control module 4 can coordinate the working fluid circulation rhythm, temperature adjustment rhythm, or the working status of related actuators according to the system operating conditions to reduce the impact of instantaneous disturbances during slag discharge on the entire circulation process, thereby improving the overall stability and coordination of the system operation.

[0052] Furthermore, during the slag discharge control process, the intelligent control module 4 can also record the slag discharge time, the number of slag discharges, and the corresponding operating status parameters for subsequent operation and maintenance, parameter optimization, or fault early warning. By accumulating and analyzing the slag discharge control data, the slag discharge cycle setting and control strategy can be further optimized, improving the processing effect of the cyclone slag separator module 2 during long-term operation.

[0053] Through the above-described slag discharge control implementation method, the present invention can realize the automatic discharge of impurities deposited at the bottom of the cyclone slag separation module 2, avoid long-term accumulation of impurities leading to decreased separation efficiency or blockage of the flow channel, reduce the frequency of manual maintenance, improve the continuous operation capability and automation level of the system, and thus be more suitable for application scenarios with high requirements for the cleanliness of the working fluid, operational stability and maintenance convenience in ultra-precision grinding processes.

[0054] IV. Implementation Methods of Thermoelectric Refrigeration Modules (in conjunction with...) Figure 2 ) In one embodiment, the thermoelectric cooling module 3 is used to regulate the temperature of the working fluid after it has been processed by the cyclone slag separation module 2. The module is located inside the main tank 1 and downstream of the cyclone slag separation module 2 to further process the working fluid that has completed solid-liquid separation.

[0055] Specifically, the thermoelectric cooling module 3 includes a cooling chamber 31, a heat exchange channel disposed within the cooling chamber 31, and a semiconductor thermoelectric cooling element 32 that exchanges heat with the cooling chamber 31. After the working fluid enters the cooling chamber 31, it exchanges heat with the cold end of the semiconductor thermoelectric cooling element 32 under the guidance of the heat exchange channel, thereby achieving cooling or temperature stabilization control.

[0056] In one embodiment, the cooling chamber 31 is a relatively closed fluid channel structure, with an internal space for working fluid flow and heat exchange. By placing the cooling chamber 31 inside the main housing 1, heat loss from external piping connections can be reduced, while improving the overall compactness of the system structure.

[0057] Furthermore, the heat exchange channel is disposed inside the refrigeration chamber 31 to guide the working fluid to flow along a predetermined path and fully contact the cold end of the semiconductor thermoelectric refrigeration element 32. In a preferred embodiment, the heat exchange channel is formed by multiple flow guide baffles arranged in an alternating pattern to create a multi-layer reciprocating flow channel structure, causing the working fluid to flow in multiple zigzag patterns within the refrigeration chamber 31, thereby effectively extending the flow path and increasing the residence time. Through this structural design, the heat exchange area and heat exchange time between the working fluid and the cold end can be significantly increased, thereby improving the overall refrigeration efficiency.

[0058] In a further embodiment, the semiconductor thermoelectric cooling element 32 is disposed on the outside of the cooling cavity 31 or closely attached to the wall of the cooling cavity 31, with its cold end facing the inside of the cooling cavity 31 to absorb heat from the working fluid, and its hot end facing the outside of the cooling cavity 31 to release the absorbed heat. This arrangement enables direct heat exchange with the working fluid inside the cooling cavity 31, improving the thermal response speed.

[0059] Preferably, the hot end of the semiconductor thermoelectric cooling element 32 is connected to a heat dissipation assembly 33. The heat dissipation assembly 33 includes a heat sink and a forced air cooling device for forming a directional airflow at the heat sink. By setting up the heat dissipation assembly 33, the heat generated at the hot end of the semiconductor thermoelectric cooling element 32 can be dissipated in a timely manner, avoiding heat accumulation in a localized area, thereby ensuring the stable operation of the cooling element and improving the overall cooling efficiency.

[0060] In one embodiment, the forced air cooling device may employ a fan or blower structure to create a directional airflow on the radiator surface, thereby enhancing the convective heat transfer effect. Furthermore, the heat dissipation component 33 may be disposed on the outside of the main housing 1 or form a thermally insulated structure with the main housing 1 to reduce the reverse impact of heat from the hot end on the working fluid inside the cooling chamber 31.

[0061] Furthermore, the thermoelectric cooling module 3 is electrically connected to the intelligent control module 4. The intelligent control module 4 is used to adjust the operating state of the semiconductor thermoelectric cooling element 32 based on the working fluid temperature information obtained by the temperature detection unit. In one embodiment, the intelligent control module 4 can dynamically adjust the input current or operating power of the semiconductor thermoelectric cooling element 32 according to the deviation between the detected temperature and the set temperature, thereby achieving precise control of the working fluid temperature.

[0062] In one optional implementation, the intelligent control module 4 can also perform graded or intermittent control of the thermoelectric cooling module 3 according to the system operating status, so as to reduce energy consumption while ensuring temperature control accuracy. For example, when the detected temperature is close to the set temperature, the operating power of the semiconductor thermoelectric cooling element 32 is reduced; when the temperature deviation increases, the cooling intensity is increased, so as to achieve a balance between energy saving and performance.

[0063] Through the above structure and control method, the thermoelectric cooling module 3 can efficiently and controllably regulate the temperature of the working fluid, forming a collaborative working relationship with the pre-stage cyclone slag separation module 2. While ensuring the cleanliness of the working fluid, it maintains its temperature stability, thereby improving the processing accuracy and process stability during ultra-precision grinding.

[0064] In one embodiment, the flow guide baffles in the cooling cavity 31 are configured with 3 to 10 layers to form a multi-stage reciprocating flow channel structure; the spacing between adjacent flow guide baffles is 5 mm to 20 mm to improve heat exchange efficiency while ensuring flow uniformity.

[0065] The multi-layer reciprocating flow channel structure allows the working fluid to flow in multiple directions within a limited space. Compared to a single straight-through flow channel structure, this significantly increases the heat exchange area and residence time, thereby improving heat exchange efficiency and enhancing temperature control stability.

[0066] V. Implementation Method of Heat Dissipation Structure In one embodiment, the heat dissipation structure is mainly used to dissipate heat from the hot end of the semiconductor thermoelectric cooling element 32 in the thermoelectric cooling module 3 to ensure its continuous and stable operation. Specifically, the heat dissipation structure consists of a heat dissipation component 33, which is connected to the hot end of the semiconductor thermoelectric cooling element 32.

[0067] Specifically, during operation, the cold end of the semiconductor thermoelectric cooling element 32 absorbs heat from the working fluid in the cooling chamber 31, while the hot end releases the corresponding heat. If the heat at the hot end cannot be dissipated in time, the temperature difference between the two ends of the semiconductor thermoelectric cooling element 32 will decrease, thereby reducing the cooling efficiency. Therefore, efficiently dissipating heat from the hot end by setting up the heat dissipation component 33 plays an important role in maintaining the performance of the thermoelectric cooling module 3.

[0068] In one embodiment, the heat dissipation assembly 33 includes a heat sink and a forced air cooling device. The heat sink is tightly connected to the hot end of the semiconductor thermoelectric cooling element 32 to rapidly conduct heat from the hot end to the heat sink structure body; the heat sink may adopt a finned structure with a large specific surface area to increase the contact area with air, thereby enhancing heat dissipation capacity.

[0069] Furthermore, the forced air cooling device is positioned corresponding to the radiator to create a directional airflow on the radiator surface. This airflow removes heat from the radiator surface, significantly improving convective heat transfer efficiency. In one embodiment, the forced air cooling device may employ an axial fan or centrifugal fan structure, causing the airflow to pass over the radiator surface in a predetermined direction to form a stable heat dissipation airflow channel.

[0070] In a preferred embodiment, the heat dissipation component 33 is disposed on the outside of the main housing 1 or forms a thermally isolated arrangement with the main housing 1, so that the heat generated during the heat dissipation process is not directly conducted to the area where the cooling cavity 31 is located, thereby avoiding adverse effects on the working fluid temperature regulation. Through this structural design, the hot and cold end areas can be effectively separated, improving the overall temperature control effect.

[0071] Furthermore, in one embodiment, a thermally conductive interface material may be provided between the heat sink and the semiconductor thermoelectric cooling element 32 to reduce contact thermal resistance and improve heat conduction efficiency; the thermally conductive interface material may be thermally conductive silicone grease or thermally conductive pad, etc., to ensure good thermal contact between the two.

[0072] In one optional embodiment, the heat dissipation component 33 can also be optimized in combination with the structure of the main housing 1, for example, by using the outer wall of the main housing 1 as an auxiliary heat dissipation path, or by setting heat dissipation ventilation holes at corresponding positions of the main housing 1, so as to further enhance the overall heat dissipation capacity.

[0073] Furthermore, the heat dissipation structure can be linked and controlled with the intelligent control module 4. In one embodiment, the intelligent control module 4 can adjust the operating status of the forced air cooling device based on the working status of the semiconductor thermoelectric cooling element 32 or the temperature detection result, such as adjusting the fan speed or start / stop status, thereby reducing energy consumption and operating noise while meeting heat dissipation requirements.

[0074] By designing the aforementioned heat dissipation structure, the heat generated by the semiconductor thermoelectric cooling element 32 during operation can be quickly and stably dissipated, thereby maintaining a large temperature difference between the hot and cold ends, improving thermoelectric cooling efficiency, and ensuring the long-term stability and reliability of the thermoelectric cooling module 3. Simultaneously, through optimized heat dissipation paths and coordinated control design, the thermal management performance of the entire circulating water tank system can be further enhanced.

[0075] VI. Implementation Method of Intelligent Control Module In one embodiment, the intelligent control module 4 is used to monitor and control the overall operating status of the circulating water tank system, and is electrically connected to the slag separation module 2, the thermoelectric cooling module 3 and related detection units, thereby realizing the coordinated operation of slag separation control and temperature regulation.

[0076] Specifically, the intelligent control module 4 includes a temperature detection unit and a control unit. The temperature detection unit is used to acquire real-time temperature information of the working fluid inside the main housing 1, and the control unit is used to adjust the operating state of the semiconductor thermoelectric cooling element 32 according to the detection results. In one embodiment, the temperature detection unit can be located inside the cooling cavity 31 corresponding to the thermoelectric cooling module 3 or at its fluid outlet position to improve the accuracy and response speed of temperature detection.

[0077] In one embodiment, the control unit dynamically adjusts the input current or operating power of the semiconductor thermoelectric cooling element 32 based on the deviation between the detected temperature and the preset temperature, thereby achieving closed-loop control of the working fluid temperature. When the detected temperature is higher than the set temperature, the cooling power of the semiconductor thermoelectric cooling element 32 is increased; when the detected temperature is close to or lower than the set temperature, its operating power is reduced or intermittent control is implemented to achieve energy-saving operation.

[0078] Furthermore, the intelligent control module 4 is also used to control the slag discharge process in the cyclone separation module 2. In one embodiment, the intelligent control module 4 controls the opening and closing of the automatic slag discharge device 22 according to a preset time or sedimentation state signal to achieve periodic or on-demand slag discharge. Through this control method, impurities can be prevented from accumulating at the bottom of the cyclone cavity 21 for a long time, thereby maintaining a good separation effect.

[0079] In a further embodiment, the intelligent control module 4 is also connected to detection units disposed on both sides of the filter assembly 7 to acquire the differential pressure signal across the filter assembly 7. When the differential pressure exceeds a preset threshold, the intelligent control module 4 triggers a backwashing operation on the filter assembly 7 to restore the unobstructed state of the filter channel. In this way, clogging of the filter assembly 7 can be prevented from adversely affecting the system flow rate and separation effect.

[0080] In one embodiment, the intelligent control module 4 can coordinate the control of the thermoelectric cooling module 3 and the cyclone slag separation module 2. For example, when the automatic slag discharge device 22 is activated to discharge slag, the intelligent control module 4 can appropriately adjust the operating state of the semiconductor thermoelectric cooling element 32 to reduce the disturbance of the slag discharge process to the system fluid state and temperature field distribution, thereby improving the overall system stability.

[0081] Furthermore, in an optional embodiment, the intelligent control module 4 can also control the forced air cooling device in the heat dissipation component 33, and adjust the air cooling intensity according to the hot end temperature of the semiconductor thermoelectric cooling element 32 or the system load, so as to achieve a balance between heat dissipation efficiency and energy consumption.

[0082] In a preferred embodiment, the intelligent control module 4 also has data recording and status analysis functions, which can record parameters such as temperature changes, slag discharge frequency, and differential pressure changes during system operation, and use them for subsequent operation optimization or fault early warning. For example, when a decrease in temperature regulation efficiency or abnormal slag discharge frequency is detected, the system can be prompted to perform maintenance or parameter adjustment.

[0083] Through the above control methods, the intelligent control module 4 realizes unified and coordinated control of the cyclone slag separation module 2, the thermoelectric cooling module 3 and related auxiliary structures, enabling the system to have multi-functional integrated control capabilities such as temperature regulation, impurity discharge and filtration maintenance, thereby significantly improving the automation level, operational stability and adaptability to complex working conditions of the circulating water tank system.

[0084] In one embodiment, the intelligent control module 4 performs graded control on the semiconductor thermoelectric cooling element 32 based on the deviation between the detected temperature and the set temperature: when the temperature deviation is greater than a first threshold, a high-power cooling mode is adopted; when the temperature deviation is in the middle range, a medium-power operation is adopted; when the temperature is close to the set temperature, a low-power or intermittent operation mode is adopted to achieve energy saving and stable control.

[0085] In one embodiment, the control mode of the automatic slag discharge device 22 includes two modes: timed triggering and triggering based on the deposition state. The intelligent control module 4 automatically performs the slag discharge operation according to the system running time or the detected deposition signal.

[0086] In one embodiment, the backwashing control of the filter component 7 is based on a differential pressure signal. When the differential pressure across the filter component 7 exceeds a preset threshold, the intelligent control module 4 triggers a backwashing operation to restore the filter channel to its unobstructed state.

[0087] In one embodiment, the intelligent control module 4 is further configured to handle abnormal operating conditions. When the working fluid temperature is detected to exceed a preset upper limit, the cooling intensity is automatically increased. When the pressure difference of the filter component 7 is detected to rise abnormally, backwashing is performed or an alarm signal is issued. When the liquid level is detected to be below a safe threshold, the system operation is stopped or a warning is issued to ensure the safe operation of the equipment.

[0088] VII. Filtration and Self-Cleaning Implementation Methods In one embodiment, the present invention further includes a filter assembly 7 disposed between the cyclone separation module 2 and the thermoelectric refrigeration module 3, for further fine filtration of the working fluid after cyclone separation to remove residual fine particulate impurities, thereby improving the cleanliness of the working fluid entering the thermoelectric refrigeration module 3.

[0089] Specifically, the filter assembly 7 is located inside the main housing 1, downstream of the cyclone separation module 2 and upstream of the thermoelectric refrigeration module 3, allowing the working fluid to enter the filter assembly 7 for secondary filtration after primary solid-liquid separation. Through the synergistic effect of cyclone separation and the filter assembly 7, impurities of different particle sizes can be removed in stages, thereby significantly improving the overall purification effect.

[0090] In one embodiment, the filter assembly 7 may employ a cartridge filter structure, a metal mesh structure, or a multi-layer composite filter structure to adapt to filtration scenarios with different precision requirements. Preferably, the filtration precision of the filter assembly 7 can be selected according to the requirements of ultra-precision machining processes to ensure filtration effectiveness while also meeting system flow requirements.

[0091] Furthermore, detection units are respectively provided on both sides of the filter assembly 7 to detect the pressure difference signal between the inlet and outlet sides of the filter assembly 7 in real time. The detection units are electrically connected to the intelligent control module 4 to transmit the pressure difference information to the intelligent control module 4 for analysis and processing.

[0092] In one implementation, as the system runs for longer, the filter component 7 gradually traps impurities, increasing the internal flow resistance and causing the pressure difference between the two sides to gradually rise. When the pressure difference reaches a preset threshold, the intelligent control module 4 determines that the filter component 7 is blocked or near-blocked and triggers the self-cleaning control logic.

[0093] Specifically, when the intelligent control module 4 detects that the differential pressure exceeds a preset threshold, the control system performs a backwashing operation to clean the filter assembly 7. In one embodiment, the backwashing process flushes away impurities trapped inside the filter assembly 7 by changing the local fluid flow direction or introducing reverse fluid, causing them to detach from the filter surface and be discharged out of the main housing 1 with the drain flow.

[0094] Preferably, the backwashing operation can be performed in conjunction with the automatic slag discharge device 22. That is, the automatic slag discharge device 22 is activated simultaneously with backwashing to ensure that the flushed impurities are discharged from the system in a timely manner, thereby preventing impurities from re-entering the circulation path. This coordinated control method can improve the self-cleaning effect and reduce the risk of secondary pollution.

[0095] In a further embodiment, the intelligent control module 4 can perform time-based or staged control of the backwashing process, such as setting the backwashing duration, rinsing intensity, or execution frequency, to balance cleaning effectiveness and system operational stability. Simultaneously, during the backwashing process, the operating state of the thermoelectric cooling module 3 can be appropriately adjusted to reduce the impact of fluid disturbances on temperature control.

[0096] In one alternative embodiment, the filter assembly 7 can also be designed as a detachable or modular structure for manual replacement or maintenance when needed. Combining automatic backwashing with manual maintenance can further extend the service life of the filter assembly 7 and reduce system maintenance costs.

[0097] Furthermore, the intelligent control module 4 can also record and analyze the operating status of the filter assembly 7, including parameters such as differential pressure change trends, backwash trigger counts and time intervals, to optimize filtration and self-cleaning control strategies. For example, when an abnormal rate of increase in differential pressure is detected, it can indicate that the filter assembly 7 is at risk of abnormal blockage or damage, thus providing an early warning.

[0098] Through the above-described filtration and self-cleaning implementation methods, this invention achieves efficient removal of fine impurities in the working fluid and automatic maintenance of the filter component 7, enabling the system to maintain stable flow and filtration performance during long-term operation. Simultaneously, by linking differential pressure monitoring and backwashing control, a closed-loop self-cleaning mechanism is constructed, significantly improving the automation level, operational reliability, and maintenance convenience of the circulating water tank system. This makes it particularly suitable for ultra-precision machining applications requiring high cleanliness of the working fluid.

[0099] VIII. Work Process Description In one embodiment, the cyclone slag-separating ultra-precision circulating water tank of the present invention, with thermoelectric cooling, achieves continuous purification and temperature regulation of the working fluid through the synergistic effect of the cyclone slag-separating module 2, the filter component 7, the thermoelectric cooling module 3, and the intelligent control module 4 during actual operation.

[0100] Specifically, after the system starts, the working fluid from the external ultra-precision grinding equipment enters the main tank 1 through inlet 5 and first enters the vortex chamber 21 in the vortex slag separation module 2. Inside the vortex chamber 21, the working fluid forms a vortex field under the action of tangential liquid inlet. Under the action of centrifugal force, the denser particulate impurities migrate to the outer periphery and bottom, and are deposited in the bottom area under the guidance of the conical sedimentation structure, while the relatively clean liquid flows out through the central overflow channel.

[0101] Subsequently, the working fluid after cyclone separation flows into filter element 7, where residual fine particulate impurities are further removed to improve the cleanliness of the working fluid. Through the synergistic effect of cyclone separation and filter element 7, impurities of different particle sizes can be graded, thereby providing relatively stable fluid conditions for subsequent temperature regulation.

[0102] After filtration, the working fluid enters the cooling chamber 31 of the thermoelectric cooling module 3, where it undergoes thorough heat exchange with the cold end of the semiconductor thermoelectric cooling element 32 under the guidance of the heat exchange channel, thereby achieving cooling or constant temperature control. During this process, the heat generated at the hot end of the semiconductor thermoelectric cooling element 32 is promptly dissipated through the heat dissipation assembly 33 to maintain cooling efficiency.

[0103] Throughout the operation, the intelligent control module 4 monitors and controls the system status in real time. Specifically, the intelligent control module 4 obtains the working fluid temperature information through the temperature detection unit, and dynamically adjusts the working state of the semiconductor thermoelectric cooling element 32 according to the deviation between the detected temperature and the set temperature, thereby realizing closed-loop temperature control.

[0104] Meanwhile, the intelligent control module 4 also controls the opening and closing of the automatic slag discharge device 22 according to the preset time or sedimentation status signal, so as to discharge the impurities deposited at the bottom of the cyclone slag separation module 2 in a timely manner, thereby avoiding the accumulation of impurities from affecting the separation effect.

[0105] Furthermore, the intelligent control module 4 determines the clogging status of the filter component 7 by detecting the pressure difference signal on both sides of the filter component 7. When the pressure difference exceeds a preset threshold, the intelligent control module 4 triggers a backwashing operation to perform self-cleaning on the filter component 7. During the backwashing process, the automatic slag discharge device 22 can be activated to discharge the flushed impurities from the system, thereby achieving coordinated cleaning of filtration and slag discharge.

[0106] In a preferred embodiment, the intelligent control module 4 can also coordinate and control the slag discharge process, the backwashing process, and the operating status of the thermoelectric cooling module 3. For example, when performing slag discharge or backwashing operations, the operating status of the semiconductor thermoelectric cooling element 32 can be appropriately adjusted to reduce the impact of fluid disturbance on temperature control, thereby improving the overall stability of the system operation.

[0107] After the above processing steps, the working fluid with stable temperature and high cleanliness is output from outlet 6 and re-enters the ultra-precision grinding equipment, forming a closed-loop circulation system. As the system continues to operate, the working fluid continuously circulates within the main tank 1, repeatedly performing the processes of cyclone separation, filtration purification, and temperature regulation.

[0108] Through the above-described process, this invention achieves continuous purification and precise temperature control of the working fluid, and maintains long-term stable operation of the system through slag discharge control and filtration self-cleaning mechanism, thereby effectively improving the stability of the working fluid quality during ultra-precision machining, reducing maintenance frequency, and improving overall machining accuracy and process consistency.

[0109] Through the synergistic effect of cyclone separation, filtration and purification, and thermoelectric cooling, the working fluid maintains a high level of cleanliness and a stable temperature during circulation, thereby significantly improving the stability and consistency of the ultra-precision grinding process.

[0110] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. For those skilled in the art, various equivalent substitutions or modifications can be made without departing from the technical concept of the present invention, and all such equivalent substitutions or modifications should fall within the scope of protection of the present invention.

[0111] It should be noted that the technical features of the various embodiments described in this specification can be combined with each other without conflict. For technical content not described in detail, techniques known in the art can be used.

[0112] Furthermore, the terminology used in this specification is for the purpose of describing specific embodiments only and is not intended to limit the present invention; any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention, which is defined by the claims.

Claims

1. A cyclone-type ultra-precision grinding circulating water tank with thermoelectric cooling, characterized in that, include: The main housing (1), the cyclone slag separation module (2), the thermoelectric refrigeration module (3), the intelligent control module (4), and the circulation pipeline interface; The cyclone slag separation module (2) and the thermoelectric cooling module (3) are integrated inside the main box (1) and arranged sequentially along the flow direction of the ultrafine grinding fluid (working fluid); The circulation pipeline interface includes an inlet (5) and an outlet (6). The working fluid enters the cyclone slag separation module (2) through the inlet (5) for solid-liquid separation and then flows into the thermoelectric refrigeration module (3) for temperature regulation and is output through the outlet (6). The intelligent control module (4) is connected to the cyclone slag separation module (2) and the thermoelectric refrigeration module (3) respectively, and is used to monitor the temperature and separation status of the working fluid, and to coordinate the control of the refrigeration process and the slag discharge process based on the monitoring results.

2. The circulating water tank according to claim 1, characterized in that, The cyclone separation module (2) includes a cyclone cavity (21), which is provided with a tangential liquid inlet, a central overflow channel and a conical sedimentation structure at the bottom, so that the working fluid forms a cyclone field in the cavity and achieves solid-liquid separation.

3. The circulating water tank according to claim 2, characterized in that, The inner wall of the swirling cavity (21) is provided with a spiral guiding structure. The spiral guiding structure gradually changes its spiral angle along the flow direction to enhance the swirling intensity and improve the separation efficiency of fine particles.

4. The circulating water tank according to claim 2 or 3, characterized in that, The bottom of the conical settling structure is connected to an automatic slag discharge device (22), which is used to open under the action of a control signal to discharge deposited impurities.

5. The circulating water tank according to claim 4, characterized in that, The intelligent control module (4) is configured to control the automatic slag discharge device (22) to start slag discharge instantaneously according to a preset time or based on the deposition state signal.

6. The circulating water tank according to claim 1, characterized in that, The thermoelectric cooling module (3) includes a cooling cavity (31), a heat exchange channel disposed in the cooling cavity (31), and a semiconductor thermoelectric cooling element (32) that exchanges heat with the cooling cavity (31). The heat exchange channel is used to guide the working fluid to exchange heat with the cold end of the semiconductor thermoelectric cooling element (32).

7. The circulating water tank according to claim 6, characterized in that, The heat exchange channel is a multi-layer reciprocating channel structure formed by multiple guide baffles arranged in an alternating manner, so as to extend the flow path of the working fluid in the refrigeration chamber (31) and improve the heat exchange efficiency.

8. The circulating water tank according to claim 6, characterized in that, The hot end of the semiconductor thermoelectric cooling element (32) is connected to a heat dissipation assembly (33), which includes a heat sink and a forced air cooling device for forming a directional airflow at the heat sink.

9. The circulating water tank according to claim 1, characterized in that, The intelligent control module (4) includes a temperature detection unit and a control unit. The control unit dynamically adjusts the working state of the semiconductor thermoelectric cooling element (32) according to the deviation between the detected temperature and the set temperature.

10. The circulating water tank according to claim 1, characterized in that, It also includes a filter assembly (7) disposed between the cyclone slag separation module (2) and the thermoelectric refrigeration module (3), and a detection unit for detecting the pressure difference across the filter assembly (7). When the differential pressure exceeds a preset threshold, the intelligent control module (4) triggers a backwashing operation on the filter component (7).

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