Water-cooled unit cell group waste heat centralized exhaust system

Abstract

The utility model belongs to precision machine tool manufacturing and processing environmental control technical field, specifically disclose a kind of water cooling unit unit group waste heat centralized external exhaust system, including multiple water cooling unit units, and water cooling unit unit is interconnected by heat discharge pipeline and constitutes waste heat centralized discharge network;Heat discharge main, it is connected with heat discharge pipeline, for gathering the waste heat airflow generated by each water cooling unit unit;Forced draught fan, it is located in heat discharge main, for generating negative pressure to suck and concentrate discharge waste heat airflow, the utility model is laid out according to workshop equipment and water cooling demand, the water cooling unit unit served to each machine platform is regionalized and concentrated arrangement, form several heat dissipation nodes, can make the distribution of water cooling unit unit more conform to workshop actual working condition, reduce the laying length and complexity of heat discharge pipeline, reduce heat loss and resistance in pipeline conveying process, improve the efficiency of waste heat centralized collection and discharge.

Description

Technical Field

[0001] This application relates to the field of environmental control technology for precision machine tool manufacturing and processing, and more specifically, to a centralized exhaust system for waste heat from a water-cooled unit. Background Technology

[0002] In precision machine tool machining, thermal deformation is the dominant factor affecting machining accuracy, accounting for 40%-70% of the total error. The main heat sources include: thermal deformation of the mechanical structure, where large components such as the bed and column expand unevenly due to ambient temperature fluctuations and internal heat conduction; thermal displacement of the transmission system, where frictional heat generated by moving parts such as ball screws and guide rails leads to thermal expansion; and temperature rise in the power system, where high-power-density components such as linear motors and spindle motors generate significant heat during operation. To mitigate thermal error, a central air conditioning system is primarily used to maintain a constant overall ambient temperature in the machining workshop, typically set at 20±1°C, to suppress thermal deformation of large structural components. Simultaneously, a circulating water cooling system is used for active cooling of critical heat sources such as linear motors to maintain stable operating temperatures.

[0003] However, existing heat dissipation solutions have significant drawbacks. While effectively removing heat from the motor, the water-cooling system's cooling unit (water-cooled chiller unit) releases the absorbed heat into the workshop environment through the radiator. This additional waste heat not only increases the load on the air conditioning system, requiring it to perform extra work to offset the heat dissipation from the water-cooled chiller unit, resulting in double energy consumption; it also disrupts the carefully maintained temperature uniformity and stability within the workshop, deteriorating the temperature field and indirectly affecting the machining accuracy of all machine tools, thus adversely impacting precision machining. Utility Model Content

[0004] To address the aforementioned issues, this application provides a centralized waste heat exhaust system for water-cooled chiller units.

[0005] The technical solution provided in this application for a centralized waste heat exhaust system for a water-cooled unit adopts the following: A centralized waste heat discharge system for water-cooled unit units includes multiple water-cooled unit units, which are interconnected through heat discharge pipelines to form a centralized waste heat discharge network. The heat exhaust main pipe is connected to the heat exhaust pipeline and is used to collect the waste heat airflow generated by each water-cooled unit. Forced exhaust fans, located inside the heat exhaust manifold, are used to generate negative pressure to draw in and centrally exhaust waste heat airflow.

[0006] Through the above technical solution, based on the workshop equipment layout and water cooling requirements, the water-cooled unit units serving each machine are arranged in a regionalized and centralized manner to form several heat dissipation nodes. This makes the distribution of the water-cooled unit units more in line with the actual working conditions of the workshop, reduces the laying length and complexity of heat discharge pipelines, reduces heat loss and resistance during pipeline transportation, and improves the efficiency of centralized collection and discharge of waste heat.

[0007] Furthermore, each water-cooled unit is equipped with a gas collection structure at the top, and two heat exhaust pipes are connected to the outlet end of the corresponding gas collection structure.

[0008] Furthermore, the air collection structure is a gradually expanding structure, and the bottom opening of the air collection structure matches the heat dissipation port of the water-cooled unit.

[0009] Furthermore, each water-cooled unit is equipped with an inspection door on one side, and each inspection door has multiple heat dissipation holes inside.

[0010] Furthermore, the heat dissipation holes are arrayed ventilation holes with a diameter of 5-10mm.

[0011] Furthermore, the internal fixed connection of the heat exhaust main pipe is a fixing plate, and the external casing of the forced exhaust fan is provided.

[0012] Furthermore, the outer shell and the fixing plate are connected by fasteners, which are evenly distributed along the circumference of the outer shell.

[0013] Furthermore, both the main heat exhaust pipe and the outer wall of the heat exhaust pipeline are equipped with an insulation layer, which is made of insulation cotton.

[0014] Through the above technical solutions, the pipeline has an insulation layer, which can prevent waste heat from spreading in the area. In conjunction with the insulation layer, it can minimize heat loss during the transmission process, avoid interference with the surrounding environment of the pipeline due to heat dissipation, and ensure the stability of the local temperature field in the workshop.

[0015] In summary, this application includes at least one of the following beneficial technical effects: (1) Based on the layout of workshop equipment and water cooling requirements, this utility model arranges the water cooling unit units serving each machine in a regionalized and centralized manner to form several heat dissipation nodes. This makes the distribution of water cooling unit units more in line with the actual working conditions of the workshop, reduces the laying length and complexity of heat discharge pipelines, reduces heat loss and resistance during pipeline transportation, and improves the efficiency of centralized collection and discharge of waste heat. (2) In each centralized arrangement area, the present invention provides a uniform closed heat exhaust pipeline for the heat dissipation outlet of all water-cooled units, and the pipeline has an insulation layer to prevent waste heat from spreading in the area. The insulation layer can minimize the loss of heat during the transmission process, avoid the surrounding environment of the pipeline from being disturbed by heat dissipation, and ensure the stability of the local temperature field in the workshop. (3) This utility model integrates a forced exhaust fan in the pipeline system to provide sufficient air pressure and flow rate to forcibly extract the high-temperature airflow discharged from the radiator of the water-cooled unit and discharge it directly and efficiently to the external atmospheric environment of the workshop building through the pipeline system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a plan view of the present invention; Figure 3 This is a side view of the present invention; Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 This is a schematic diagram of the connection structure between the heat discharge main pipe and the insulation layer of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Water-cooled unit; 2. Inspection door; 3. Heat dissipation hole; 4. Heat exhaust pipe; 5. Heat exhaust main pipe; 6. Gas collection structure; 7. Fixing plate; 8. Outer shell; 9. Fasteners; 10. Forced exhaust fan; 11. Insulation layer. Detailed Implementation

[0018] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] Reference Figures 1-5 A centralized waste heat discharge system for water-cooled unit units includes multiple water-cooled unit units 1, which are interconnected through heat discharge pipelines 4 to form a centralized waste heat discharge network. The heat exhaust main pipe 5 is connected to the heat exhaust pipe 4 and is used to collect the waste heat airflow generated by each water-cooled unit 1. Forced exhaust fan 10, which is located in the heat exhaust main duct 5, is used to generate negative pressure to draw in and centrally discharge waste heat airflow.

[0020] Based on the workshop equipment layout and water cooling requirements, the water cooling unit 1 serving each machine is arranged in a regionalized and centralized manner to form several heat dissipation nodes.

[0021] During operation, each water-cooled unit 1 continuously generates waste heat, and the airflow formed by this waste heat has two diffusion paths. Part of the waste heat airflow is initially dissipated through the array of distributed heat dissipation holes 3 inside the inspection door 2 on one side of the water-cooled unit 1. These heat dissipation holes 3 are ventilation holes with a diameter of 5-10mm. The evenly distributed holes can ensure a certain heat dissipation efficiency and avoid excessive airflow dispersion. The other part of the waste heat airflow is discharged from the heat dissipation port of the water-cooled unit 1 and directly enters the gradually expanding air collection structure 6 connected at the top. Since the bottom opening of the air collection structure 6 matches the heat dissipation port of the water-cooled unit 1, and its gradually expanding structural design can effectively expand the airflow collection range and enhance the gathering effect of the waste heat airflow, thereby efficiently gathering this part of the waste heat. Subsequently, the waste heat gas collected by the gas collection structure 6 is transported through the heat discharge pipeline 4 connected to the outlet end of the gas collection structure 6. The heat discharge pipelines 4 of multiple water-cooled unit 1 are interconnected to form a complete waste heat centralized discharge network, which guides the waste heat gas of each unit in an orderly manner and gathers it into the heat discharge main pipe 5.

[0022] Inside the heat exhaust manifold 5, the forced exhaust fan 10 generates a strong negative pressure during operation. This negative pressure is transmitted through the heat exhaust manifold 5 and the heat exhaust pipeline 4 to the vicinity of each gas collection structure 6 and the water-cooled unit 1, continuously drawing in the waste heat airflow that is collected in the heat exhaust manifold 5.

[0023] Then, it flows directly and efficiently to the outside of the workshop building through the pipeline system consisting of the main heat exhaust pipe 5, and is finally discharged into the atmosphere through the exhaust outlet.

[0024] When installing this outlet, it must be compatible with the end of the main heat exhaust pipe 5. Its location should be determined in conjunction with the local prevailing wind direction to prevent the emitted waste heat from flowing back into the workshop or nearby sensitive areas due to wind direction factors, and to ensure that the impact of the system on the workshop's internal environment is minimized. At the same time, the height and installation location of the outlet must meet the specific requirements for waste gas emissions in the relevant environmental protection standards to meet environmental protection regulations and prevent adverse impacts on the surrounding environment.

[0025] Reference Figures 1-2 Each water-cooled unit 1 has a gas collection structure 6 connected to its top, and two heat discharge pipes 4 are connected to the outlet end of the corresponding gas collection structure 6.

[0026] Reference Figures 1-2The air collection structure 6 is a gradually expanding structure. The bottom opening of the air collection structure 6 matches the heat dissipation port of the water-cooled unit 1. Each water-cooled unit 1 has an inspection door 2 on one side. Each inspection door 2 has multiple heat dissipation holes 3 inside. The heat dissipation holes 3 are arrayed ventilation holes with a diameter of 5-10mm.

[0027] Reference Figures 3-4 The heat exhaust main pipe 5 is internally fixedly connected to a fixing plate 7, and the forced exhaust fan 10 is externally provided with a housing 8. The housing 8 and the fixing plate 7 are connected by fasteners 9, which are evenly distributed around the circumference of the housing 8.

[0028] Fastener 9 securely fixes the forced exhaust fan 10 inside the heat exhaust manifold 5.

[0029] When the forced exhaust fan 10 needs to be replaced or repaired, since the fasteners 9 are evenly distributed around the circumference of the outer casing 8 and are used to connect the outer casing 8 to the fixing plate 7, the operation of the forced exhaust fan 10 can be stopped first to ensure operational safety. Then, using appropriate tools, these fasteners 9 are removed one by one. After all fasteners 9 have been removed, the outer casing 8, along with the internal forced exhaust fan 10, can be separated from the fixing plate 7 and then removed from inside the heat exhaust manifold 5. After the repair or replacement is completed, the outer casing 8 containing the new or repaired forced exhaust fan 10 is aligned with the fixing plate 7, and the fasteners 9 are evenly installed and tightened around the circumference of the outer casing 8, so that the outer casing 8 and the fixing plate 7 are tightly reconnected, thus completing the replacement or repair operation of the forced exhaust fan 10.

[0030] Reference Figures 1-5 Both the outer walls of the heat discharge main pipe 5 and the heat discharge pipeline 4 are provided with an insulation layer 11, which is made of insulation cotton.

[0031] The insulation cotton has good heat insulation properties and can effectively block the heat exchange between the waste heat flow transported inside the heat discharge main pipe 5 and the heat discharge pipeline 4 and the external environment.

[0032] When the waste heat gas flows in the heat discharge pipe 4 and the heat discharge main pipe 5, the insulation layer 11 can reduce the dissipation of waste heat to the outside of the pipe and prevent heat from being lost into the workshop environment. This ensures that the waste heat can be concentrated and efficiently transported to the discharge port for discharge. At the same time, it can also prevent the temperature of the waste heat gas in the pipe from affecting the temperature of the waste heat gas, and maintain the discharge efficiency of the waste heat gas and the overall heat dissipation effect of the system.

[0033] Working Principle: During operation, each water-cooled unit 1 continuously generates waste heat. The airflow formed by this waste heat has two diffusion paths. Part of the waste heat airflow is initially dissipated through the array of distributed heat dissipation holes 3 inside the inspection door 2 on one side of the water-cooled unit 1. These heat dissipation holes 3 are ventilation holes with a diameter of 5-10mm. The evenly distributed holes can ensure a certain heat dissipation efficiency and avoid excessive airflow dispersion. The other part of the waste heat airflow is discharged from the heat dissipation port of the water-cooled unit 1 and directly enters the gradually expanding air collection structure 6 connected at the top. Since the bottom opening of the air collection structure 6 matches the heat dissipation port of the water-cooled unit 1, and its gradually expanding structural design can effectively expand the airflow collection range and enhance the gathering effect of the waste heat airflow, thereby efficiently gathering this part of the waste heat. Subsequently, the waste heat gas collected by the gas collection structure 6 is transported through the heat discharge pipeline 4 connected to the outlet end of the gas collection structure 6. The heat discharge pipelines 4 of multiple water-cooled unit 1 are interconnected to form a complete waste heat centralized discharge network, which guides the waste heat gas of each unit in an orderly manner and gathers it into the heat discharge main pipe 5.

[0034] Inside the heat exhaust manifold 5, the forced exhaust fan 10 generates a strong negative pressure during operation. This negative pressure is transmitted through the heat exhaust manifold 5 and the heat exhaust pipeline 4 to the vicinity of each gas collection structure 6 and the water-cooled unit 1, continuously drawing in the waste heat airflow that is collected in the heat exhaust manifold 5.

[0035] Then, it flows directly and efficiently to the outside of the workshop building through the pipeline system consisting of the main heat exhaust pipe 5, and is finally discharged into the atmosphere through the exhaust outlet.

[0036] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A centralized waste heat exhaust system for a water-cooled unit, characterized in that, include: Multiple water-cooled unit units (1) are interconnected through heat discharge pipelines (4) to form a centralized waste heat discharge network; The heat exhaust manifold (5) is connected to the heat exhaust pipeline (4) and is used to collect the waste heat airflow generated by each water-cooled unit (1); A forced exhaust fan (10) is installed in the heat exhaust manifold (5) to generate negative pressure to draw in and centrally discharge the waste heat flow.

2. The centralized waste heat exhaust system for a water-cooled unit according to claim 1, characterized in that: Each of the water-cooled unit units (1) is connected to a gas collection structure (6) at the top, and the two heat discharge pipes (4) are respectively connected to the outlet end of the corresponding gas collection structure (6).

3. The centralized waste heat exhaust system for a water-cooled unit according to claim 2, characterized in that: The gas collection structure (6) is a gradually expanding structure, and the bottom opening of the gas collection structure (6) matches the heat dissipation port of the water-cooled unit (1).

4. The centralized waste heat exhaust system for a water-cooled unit according to claim 1, characterized in that: Each of the water-cooled unit (1) is provided with an inspection door (2) on one side, and each inspection door (2) has multiple heat dissipation holes (3) inside.

5. The centralized waste heat exhaust system for a water-cooled unit according to claim 4, characterized in that: The heat dissipation holes (3) are arrayed ventilation holes with a diameter of 5-10 mm.

6. The centralized waste heat exhaust system for a water-cooled unit according to claim 1, characterized in that: The heat exhaust manifold (5) is internally fixedly connected to a fixing plate (7), and the forced exhaust fan (10) is externally provided with a casing (8).

7. A centralized waste heat exhaust system for a water-cooled unit according to claim 6, characterized in that: The outer shell (8) and the fixing plate (7) are connected by fasteners (9), which are evenly distributed around the outer shell (8).

8. The centralized waste heat exhaust system for a water-cooled unit according to claim 1, characterized in that: Both the outer walls of the heat discharge main pipe (5) and the heat discharge pipeline (4) are provided with a heat insulation layer (11), which is made of heat insulation cotton.

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