Improved aluminum extrusion cooling water circulation system and method

Abstract

The application discloses an improved aluminum extrusion cooling water circulating system and method, and belongs to the field of cooling water circulating systems. The cooling water circulating system comprises a bottom plate, the top end surface of the bottom plate is fixedly connected with a plurality of support blocks in the length direction, the top ends of the plurality of support blocks are fixedly connected with a water circulating box, a cold water cavity is formed in the inner top end of the water circulating box, a water cooling cavity is arranged below the cold water cavity, the cold water cavity and the water cooling cavity are isolated by a partition plate, a water outlet communicating with the cold water cavity is fixedly connected with the top end of the outer side surface of the water circulating box, and a water inlet communicating with the water cooling cavity is fixedly connected with the bottom end of the outer side surface of the water circulating box. The application can precool the backflow cooling water when the temperature is too high, reduce the load of the cooling water circulating system, and directly transport the backflow high-temperature water to the surrounding of the cold water cavity when the temperature is too low, so that the water in the cold water cavity cannot be used due to freezing, and the application is suitable for places with large diurnal temperature difference, such as deserts.

Description

TECHNICAL FIELD

[0001] The present application relates to a cooling water circulation system, in particular to an improved aluminum extrusion cooling water circulation system and method. BACKGROUND

[0002] Cooling water is needed in the process of aluminum extrusion, and the cooling water is supplied by a cooling water circulation system. The existing cooling water circulation system usually transports low-temperature cooling water in the cold water tank to the use position of the aluminum extrusion process, and then transports the cooling water that has absorbed a large amount of heat back to the evaporator, compressor and condenser for heat absorption and cooling. Finally, the cooling water that has been cooled again is transported to the cold water tank, and the cold water tank continuously provides low-temperature cooling water to the use position of the aluminum extrusion process to form a cycle.

[0003] However, the existing cooling water circulation system has some defects when used in places with large diurnal temperature difference, such as deserts. The temperature during the day is frighteningly high, but the temperature at night can easily drop below 0℃. In these two extreme working environments, the existing cooling water circulation system is prone to overload during the day, and the water in the cold water tank of the existing cooling water circulation system is prone to freezing and cannot be used at night. Therefore, the present application provides an improved aluminum extrusion cooling water circulation system and method to solve the problems raised in the background. SUMMARY

[0004] The present application aims to provide an improved aluminum extrusion cooling water circulation system and method that can pre-cool the return cooling water to reduce the load of the cooling water circulation system when the temperature is too high, and can quickly and directly transport the high-temperature water back to the inside of the cold water cavity when the temperature is too low, to avoid the water in the cold water cavity from freezing and being unable to be used, thereby being suitable for use in places with large diurnal temperature difference, such as deserts, to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] The utility model provides an improved aluminium extrusion cooling water circulation system, including the bottom plate, the top end surface of bottom plate is connected with a plurality of support blocks along the length direction fixedly, a plurality of support blocks top end are connected with water circulation tank fixedly, and the inside top of water circulation tank is equipped with cold water cavity, the lower side of cold water cavity is equipped with water cooling cavity, and the cold water cavity is separated from water cooling cavity through the partition, the outside top of water circulation tank is fixedly connected with the water outlet that communicates with cold water cavity, and the outside bottom of water circulation tank is fixedly connected with the water inlet that communicates with water cooling cavity, the top of water circulation tank is equipped with lifting heat preservation mechanism, and the outside of water circulation tank is equipped with a plurality of evenly distributed adjusting units, the top wall of cold water cavity is fixedly connected with temperature sensor, the bottom of water cooling cavity one side is fixedly connected with three way electromagnetic valve, and the input of three way electromagnetic valve is connected with water inlet, and the output of three way electromagnetic valve is equipped with anti-icing water supply mechanism between cold water cavity, and the other output of three way electromagnetic valve is connected with water precooling mechanism, one side of water precooling mechanism is equipped with water cooling assembly connected with it, and water cooling assembly is connected with cold water cavity.

[0007] As a further scheme of the utility model: the anti-icing water supply mechanism, specifically includes: hot water delivery pipe and water storage box, the hot water delivery pipe is connected between three way electromagnetic valve and cold water cavity vertically, and the bottom end surface of cold water cavity is fixedly connected with the elbow pipe near the edge of inner wall, the top of hot water delivery pipe penetrates the partition and is communicated with the elbow pipe, and the top of elbow pipe is fixedly connected with a plurality of evenly distributed vertical drain pipes, a plurality of through holes are formed in the outside of vertical drain pipe along its height direction, the water storage box is fixed on the hot water delivery pipe below the partition, and the inside of water storage box is equipped with energy storage cavity communicated with hot water delivery pipe.

[0008] As a further scheme of the utility model: the water precooling mechanism, specifically includes: at least three horizontally parallel arranged several type pipes, the several type pipe includes two parallel vertical pipes, one end of two vertical pipes is fixedly connected with horizontal pipe for intercommunication, and the opposite direction heat dissipation pipe is fixedly connected in two vertical pipes of each several type pipe respectively, one end of heat dissipation pipe penetrates vertical pipe, the horizontal pipe of leftmost several type pipe is communicated with three way electromagnetic valve, and the output end of rightmost several type pipe is connected with water cooling assembly.

[0009] As a further scheme of the utility model: one end of heat dissipation pipe penetrating vertical pipe is connected with heat conduction copper pipe, and one end of heat conduction copper pipe is communicated with the exhaust fan embedded in the outside of water circulation tank.

[0010] As a further scheme of the utility model: the other end of heat dissipation pipe is fixedly connected with semicircular buffer head.

[0011] As a further scheme of the present application: the lifting heat preservation mechanism, specifically comprising: a gas cylinder embedded in the center of the top end of the water circulation box, and a rock wool board fixedly connected to the top output end of the gas cylinder, a guide shaft fixedly connected to the bottom end face corner position of the rock wool board, and the guide shaft bottom end inserted into the guide groove opened in the top end face corner of the water circulation box.

[0012] As a further scheme of the present application: the water cooling assembly, specifically comprising: an evaporator, a compressor, a condenser and a heat dissipation fan, the evaporator and the water pre-cooling mechanism are communicated through the water inlet pipe, and the evaporator and the cold water cavity are communicated through the water outlet pipe, the evaporator and the compressor, the compressor and the condenser, and the condenser and the evaporator are communicated through the refrigerant conveying pipeline, and the heat dissipation fan is located on one side of the condenser to blow the refrigerant heat out of the water circulation box.

[0013] As a further scheme of the present application: an expansion valve is arranged on the refrigerant conveying pipeline between the condenser and the evaporator.

[0014] As a further scheme of the present application: the adjusting unit, specifically comprising: a rectangular groove opened on the outer side of the water circulation box, a turnover plate rotatably connected in the rectangular groove, and an elastoplastic plate fixedly connected to the inner side of the turnover plate, a motor embedded in one side of the top end of the inner wall of the rectangular groove, and the output end of the motor fixedly connected with the turnover plate to drive the turnover plate to rotate.

[0015] As a further scheme of the present application: a water pump is fixedly connected to the top end face of the bottom plate on one side of the water circulation box, and the input end of the water pump is connected with the return cooling water of the external aluminum extrusion equipment, and the output end of the water pump is connected with the water inlet.

[0016] The application also discloses an improved aluminum extrusion cooling water circulation method, which adopts the improved aluminum extrusion cooling water circulation system and comprises the following steps.

[0017] Step one: during the day, the three-way electromagnetic valve opens the output end leading to the water pre-cooling mechanism and closes the output end leading to the anti-icing water supply mechanism;

[0018] Step two: the return cooling water of the external aluminum extrusion equipment is sent to the water pre-cooling mechanism through the three-way electromagnetic valve, and the water pre-cooling mechanism pre-cools the return cooling water;

[0019] Step three: the water pre-cooling mechanism sends the pre-cooled return cooling water to the water cooling assembly, and the water cooling assembly cools the return cooling water again;

[0020] Step four: the water cooling assembly sends the cooled return cooling water to the cold water cavity for subsequent extraction of cooling water.

[0021] Step five: the temperature drops suddenly at night, if the temperature measured by the temperature sensor reaches the freezing point, the three-way electromagnetic valve will close the output end to the water pre-cooling mechanism and open the output end to the anti-icing water supply mechanism;

[0022] Step six: the return cooling water of the external aluminum extrusion equipment is directly delivered to the cold water cavity through the anti-icing water supply mechanism to neutralize the cooling water in the cold water cavity that reaches the freezing point and avoid icing.

[0023] Compared with the prior art, the application has the following beneficial effects:

[0024] 1. The two output ends of the three-way electromagnetic valve of the application correspond to two working modes respectively, one working mode can pre-cool the return cooling water when the temperature is too high to reduce the load of the cooling water circulation system, and the other working mode can quickly and directly deliver the return high-temperature water to the surrounding inside of the cold water cavity to avoid the water in the cold water cavity from freezing and being unable to use, and the two working modes are switched according to whether the temperature measured by the temperature sensor reaches the preset temperature value, so that the application can be effectively applied to places with large diurnal temperature difference such as deserts.

[0025] 2. Since the cold water cavity is sealed, when the temperature reaches the freezing point, the water in the cold water cavity freezes from the inner wall to the center, that is, the inner wall of the cold water cavity first appears icing phenomenon, and the application directly delivers the return hot water to the surrounding inside of the cold water cavity through the meander pipe and the vertical water pipe through the anti-icing water supply mechanism, which quickly and effectively suppresses the icing phenomenon from the source.

[0026] 3. The water storage box is additionally arranged on the hot water delivery pipe, when the return hot water passes through the energy storage cavity of the water storage box, the return hot water accumulates energy here, so that the return hot water entering the meander pipe has more impact force, and the return hot water sprayed from the through hole of the vertical water pipe has more impact force, and the spraying range is farther, which better neutralizes the temperature of the surrounding water and suppresses the icing phenomenon.

[0027] 4. When the return hot water enters the several parallel arranged pipes, the return hot water can only flow through the gap between the vertical pipe and the heat dissipation pipe when passing through the vertical pipe, which effectively prolongs the time of the return hot water reaching the water cooling assembly, and further provides more pre-cooling time for the water pre-cooling mechanism, and in addition, the return hot water flowing through the gap needs to contact the vertical pipe and the heat dissipation pipe at the same time, and the vertical pipe and the heat dissipation pipe will absorb the heat of the return hot water and dissipate to the surrounding air, thereby effectively improving the cooling effect of the return hot water.

[0028] 5、By setting the horizontal pipe, the backflow hot water enters the horizontal pipe after passing through the vertical pipe, and the backflow hot water can be re-energized in the horizontal pipe to enter the next vertical pipe. The backflow hot water in the horizontal pipe can pass through the next vertical pipe more completely and smoothly. The semi-circular buffer head can buffer the backflow hot water entering the vertical pipe and guide the backflow hot water to the gaps around.

[0029] 6、By setting the heat-conducting copper pipe and the exhaust fan, the heat-conducting copper pipe and the exhaust fan can work together to continuously discharge hot air in the heat dissipation pipe, thereby speeding up the heat dissipation speed of the heat-conducting copper pipe and further improving the pre-cooling effect of the water pre-cooling mechanism.

[0030] 7、By setting the lifting heat preservation mechanism, when the temperature is high during the day, the cylinder lifts the rock wool board, the lifted rock wool board provides shade for the top end of the water circulation tank, and the top end of the water circulation tank is no longer in contact with the rock wool board but directly with the air, which is more convenient for heat dissipation. When the temperature is low at night, the cylinder retracts the rock wool board, and the retracted rock wool board provides heat preservation effect for the top end of the water circulation tank, reducing heat loss of the cold water cavity in the water circulation tank. The guide shaft and the guide groove cooperate to improve the stability of the rock wool board during lifting.

[0031] 8、By setting the adjusting unit, when the temperature is high during the day, the motor can turn the turning plate out of the rectangular groove by a certain angle, which not only provides shade for the outside of the water circulation tank, but also blocks external wind and sand and other debris from contacting the water circulation tank to a certain extent. In addition, since it works outdoors, when it snows, the motor continuously turns the turning plate back and forth to shake off the snow, providing good snow removal function. When the temperature is low at night, the motor retracts the turning plate into the rectangular groove, and the rubber plate at this time is against the inner wall of the rectangular groove to provide certain heat preservation effect for the water circulation tank, reducing heat loss of the cold water cavity in the water circulation tank. Finally, it needs to be pointed out that when transporting the water circulation tank to the use site, the staff can turn the turning plate out of the motor by a suitable angle. These turned turning plates can effectively provide a layer of protection for the outside of the water circulation tank, and when encountering bumps, the turning plates can bear the impact to avoid damage to the water circulation tank. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structural diagram of an improved aluminum extrusion cooling water circulation system;

[0033] Figure 2 It is a structural diagram of a water circulation tank in an improved aluminum extrusion cooling water circulation system;

[0034] Figure 3 It is a combined view of the cold water cavity and the back-shaped pipe in an improved aluminum extrusion cooling water circulation system;

[0035] Figure 4It is a structure diagram of several type pipes in an improved aluminum extrusion cooling water circulation system;

[0036] Figure 5 It is a structure diagram of a water cooling assembly in an improved aluminum extrusion cooling water circulation system;

[0037] Figure 6 It is a combined view of a cylinder, rock wool board and guide shaft in an improved aluminum extrusion cooling water circulation system;

[0038] Figure 7 It is a structure view of an adjusting unit in an improved aluminum extrusion cooling water circulation system;

[0039] Figure 8 It is a combined view of a turnover plate, motor and rectangular groove in an improved aluminum extrusion cooling water circulation system.

[0040] In the figure: 1, bottom plate; 2, support block; 3, water circulation box; 4, partition plate; 5, cold water cavity; 6, water cooling cavity; 7, three-way electromagnetic valve; 8, hot water conveying pipe; 9, water storage box; 10, coiled pipe; 11, vertical drain pipe; 12, through hole; 13, several type pipe; 1301, vertical pipe; 1302, horizontal pipe; 1303, heat dissipation pipe; 1304, semicircular buffer head; 14, heat conducting copper pipe; 15, exhaust fan; 16, temperature sensor; 17, water outlet; 18, water inlet; 19, water pump; 20, water cooling assembly; 21, evaporator; 22, compressor; 23, condenser; 24, expansion valve; 25, heat dissipation fan; 26, water inlet pipe; 27, water outlet pipe; 28, refrigerant conveying pipeline; 29, cylinder; 30, rock wool board; 31, guide shaft; 32, guide groove; 33, rectangular groove; 34, turnover plate; 35, rubber plastic plate; 36, motor. DETAILED DESCRIPTION

[0041] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0042] Please refer to Figures 1-8The improved aluminum extrusion cooling water circulation system in the embodiment of the application comprises a bottom plate 1, a plurality of support blocks 2 are fixedly connected to the top end surface of the bottom plate 1 along the length direction, a water circulation box 3 is fixedly connected to the top ends of the plurality of support blocks 2, a cold water cavity 5 is formed in the inner top end of the water circulation box 3, a water cooling cavity 6 is arranged below the cold water cavity 5, the cold water cavity 5 and the water cooling cavity 6 are separated by a partition plate 4, a water outlet 17 in communication with the cold water cavity 5 is fixedly connected to the top end of the outer side surface of the water circulation box 3, a water inlet 18 in communication with the water cooling cavity 6 is fixedly connected to the bottom end of the outer side surface of the water circulation box 3, a lifting heat preservation mechanism is arranged at the top end of the water circulation box 3, a plurality of adjusting units are arranged on the outer side surface of the water circulation box 3 and are uniformly distributed, and a temperature sensor 16 is fixedly connected to the top wall of the cold water cavity 5; a three-way electromagnetic valve 7 is fixedly connected to one side of the bottom end of the water cooling cavity 6, an input end of the three-way electromagnetic valve 7 is connected to the water inlet 18, an anti-icing water feeding mechanism is arranged between one output end of the three-way electromagnetic valve 7 and the cold water cavity 5, another output end of the three-way electromagnetic valve 7 is connected to a water precooling mechanism, a water cooling assembly 20 connected to the water precooling mechanism is arranged on one side of the water precooling mechanism, and the water cooling assembly 20 is connected to the cold water cavity 5. The application can precool the backflow cooling water when the temperature is too high to reduce the load of the cooling water circulation system, and can directly feed the backflow high-temperature water to the surrounding of the cold water cavity 5 when the temperature is too low to avoid that the water in the cold water cavity 5 cannot be used due to freezing, thereby being suitable for places with large diurnal temperature difference such as deserts.

[0043] In the embodiment, the anti-icing water feeding mechanism specifically comprises a hot water conveying pipe 8 and a water storage box 9, the hot water conveying pipe 8 is vertically connected between the three-way electromagnetic valve 7 and the cold water cavity 5, a U-shaped pipe 10 is fixedly connected to the edge of the inner wall of the bottom end surface of the cold water cavity 5, the hot water conveying pipe 8 penetrates through the partition plate 4 and is in communication with the U-shaped pipe 10, a plurality of vertical water pipes 11 are fixedly connected to the top end of the U-shaped pipe 10 and are uniformly distributed, a plurality of through holes 12 are formed in the outer side surface of the vertical water pipes 11 along the height direction of the vertical water pipes 11, the water storage box 9 is fixed to the hot water conveying pipe 8 below the partition plate 4, and an energy storage cavity in communication with the hot water conveying pipe 8 is formed in the water storage box 9. The anti-icing water feeding mechanism can directly feed the backflow hot water to the surrounding of the cold water cavity 5, quickly and effectively suppresses the icing phenomenon from the source, and can make the sprayed backflow hot water have greater impact force and can be sprayed to a farther range to better neutralize the temperature of the surrounding water.

[0044] In the embodiment, the water pre-cooling mechanism specifically comprises: at least three horizontally-arranged several-shaped tubes 13, each of the several-shaped tube 13 comprising two vertically-arranged vertical tubes 1301, one end of the two vertical tubes 1301 being fixedly connected with a horizontal tube 1302 for communication, and each of the two vertical tubes 1301 of each of the several-shaped tubes 13 being vertically fixedly connected with heat dissipation tubes 1303 in opposite directions, one end of the heat dissipation tubes 1303 penetrating the vertical tube 1301, the horizontal tube 1302 of the leftmost several-shaped tube 13 being in communication with the three-way electromagnetic valve 7, and the output end of the rightmost several-shaped tube 13 being connected with the water cooling assembly 20. The water pre-cooling mechanism can not only effectively prolong the time for the backflow hot water to reach the water cooling assembly 20, thereby providing more pre-cooling time for the water pre-cooling mechanism, but also effectively improve the cooling effect on the backflow hot water.

[0045] In the embodiment, one end of the heat dissipation tubes 1303 penetrating the vertical tube 1301 is connected with a heat-conducting copper tube 14, and one end of the heat-conducting copper tube 14 is in communication with an air extractor 15 embedded in the outer side surface of the water circulation tank 3. The heat-conducting copper tube 14 and the air extractor 15 are used in cooperation to continuously discharge the hot air in the heat dissipation tubes 1303, thereby accelerating the heat dissipation speed of the heat-conducting copper tube 14 and further improving the pre-cooling effect of the water pre-cooling mechanism.

[0046] In the embodiment, the other end of the heat dissipation tubes 1303 is fixedly connected with a semicircular buffer head 1304. The semicircular buffer head 1304 can buffer the backflow hot water entering the vertical tube 1301 and guide the backflow hot water to the gaps around.

[0047] In the embodiment, the lifting heat preservation mechanism specifically comprises: a pneumatic cylinder 29 embedded in the center of the top end of the water circulation tank 3, and a rock wool board 30 fixedly connected to the output end of the top of the pneumatic cylinder 29, the bottom end surface of the rock wool board 30 being fixedly connected with a guide shaft 31, and the bottom end of the guide shaft 31 being inserted into a guide groove 32 formed in the top end surface of the water circulation tank 3. Through the lifting heat preservation mechanism, when the temperature is high during the day, the pneumatic cylinder 29 lifts the rock wool board 30, the lifted rock wool board 30 provides shade for the top end of the water circulation tank 3, and the top end of the water circulation tank 3 is no longer in contact with the rock wool board 30 but directly with the air, which is more convenient for heat dissipation. When the temperature is low at night, the pneumatic cylinder 29 retracts the rock wool board 30, and the retracted rock wool board 30 provides heat preservation effect for the top end of the water circulation tank 3, reducing the heat loss of the cold water cavity 5 in the water circulation tank 3. The cooperation of the guide shaft 31 and the guide groove 32 can improve the stability of the lifting process of the rock wool board 30.

[0048] In the embodiment, the water cooling assembly 20 specifically comprises the evaporator 21, the compressor 22, the condenser 23 and the heat dissipation fan 25, the evaporator 21 is communicated with the water pre-cooling mechanism through the water inlet pipe 26, and the evaporator 21 is communicated with the cold water cavity 5 through the water outlet pipe 27, the evaporator 21, the compressor 22, the condenser 23 and the evaporator 21 are communicated through the refrigerant conveying pipe 28, and the heat dissipation fan 25 is located on the side of the condenser 23 to blow the refrigerant heat out of the water circulation box 3. The water cooling assembly 20 can re-cool the backflow cooling water.

[0049] In the embodiment, the refrigerant conveying pipe 28 between the condenser 23 and the evaporator 21 is provided with the expansion valve 24. The expansion valve 24 plays a role of throttling, pressure reducing and flow adjusting.

[0050] In the embodiment, the adjusting unit specifically comprises the rectangular groove 33 opened on the outer side of the water circulation box 3, the turnover plate 34 rotatably connected in the rectangular groove 33, the rubber plastic plate 35 fixedly connected to the inner side of the turnover plate 34, the motor 36 embedded on one side of the top end of the inner wall of the rectangular groove 33, and the motor 36 fixedly connected to the output end of the turnover plate 34 to drive the turnover plate 34 to rotate. When the temperature is high during the day, the turnover plate 34 is turned out of the rectangular groove 33 by a certain angle through the motor 36, which not only provides shade for the outer side of the water circulation box 3, but also blocks the foreign matters such as wind and sand from contacting the water circulation box 3 to a certain extent. In addition, since it works outdoors, when it snows, the turnover plate 34 is continuously turned back and forth through the motor 36 to shake off the snow, which has good snow removal function. When the temperature is low at night, the turnover plate 34 is retracted into the rectangular groove 33 through the motor 36, and the rubber plastic plate 35 at this time is abutted against the inner wall of the rectangular groove 33 to provide a certain heat preservation effect for the water circulation box 3, thereby reducing the heat loss of the cold water cavity 5 in the water circulation box 3. Finally, it needs to be noted that when the water circulation box 3 is transported to the use site, the turnover plate 34 can be turned out by a suitable angle through the motor 36. The turned-out turnover plate 34 can effectively provide a layer of protection for the outside of the water circulation box 3, and when it is bumped, the turnover plate 34 can be used to bear the bumping to avoid damage to the water circulation box 3.

[0051] In the embodiment, the water pump 19 is fixedly connected to the top end surface of the bottom plate 1 on one side of the water circulation box 3, the input end of the water pump 19 is connected to the backflow cooling water of the external aluminum extrusion equipment, and the output end of the water pump 19 is connected to the water inlet 18. The water pump 19 can extract the backflow cooling water to the water inlet 18 to speed up the backflow speed of the cooling water.

[0052] The application also discloses an improved aluminum extrusion cooling water circulation method.

[0053] Step one: during the day, the three-way electromagnetic valve 7 opens the output to the water pre-cooling mechanism and closes the output to the anti-icing water supply mechanism;

[0054] Step two: the return cooling water of the external aluminum extrusion equipment is transported to the water pre-cooling mechanism through the three-way electromagnetic valve 7, and the return cooling water is pre-cooled by the water pre-cooling mechanism;

[0055] Step three: the water pre-cooling mechanism transports the pre-cooled return cooling water to the water cooling assembly 20, and the water cooling assembly 20 cools the return cooling water again;

[0056] Step four: the water cooling assembly 20 transports the re-cooled return cooling water to the cold water cavity 5 for subsequent extraction of cooling water from the cold water cavity 5 for use;

[0057] Step five: when the temperature measured by the temperature sensor 16 reaches the freezing point at night, the three-way electromagnetic valve 7 closes the output to the water pre-cooling mechanism and opens the output to the anti-icing water supply mechanism;

[0058] Step six: the return cooling water of the external aluminum extrusion equipment is directly transported to the cold water cavity 5 through the anti-icing water supply mechanism, and the cooling water in the cold water cavity 5 reaches the freezing point to avoid freezing.

[0059] The working principle of the present application is that the two outputs of the three-way electromagnetic valve 7 in the cooling water circulation system correspond to two working modes, one working mode can pre-cool the return cooling water to reduce the load of the cooling water circulation system when the temperature is too high, and the other working mode can quickly and directly transport the return high-temperature water to the surrounding of the cold water cavity 5 to avoid the water in the cold water cavity 5 from freezing and being unable to use. It should be noted that the two working modes are switched according to whether the temperature measured by the temperature sensor 16 reaches the preset temperature value, and the temperature sensor 16 is connected with the external background control terminal, and the external background control terminal can set the preset temperature value, which is the freezing point of the cooling water in the cold water cavity 5.

[0060] When the cooling water circulation system is in the high temperature environment of the day, the three-way electromagnetic valve 7 opens the output to the water pre-cooling mechanism and closes the output to the anti-icing water supply mechanism at this time. The return cooling water (i.e. return hot water) of the external aluminum extrusion equipment is delivered to the water pre-cooling mechanism through the three-way electromagnetic valve 7. The water pre-cooling mechanism pre-cools the return cooling water. In the process, the return hot water can only flow through the gap between the vertical pipe 1301 and the heat dissipation pipe 1303 when passing through the vertical pipe 1301. This effectively prolongs the time for the return hot water to reach the water cooling assembly 20, thereby providing more pre-cooling time for the water pre-cooling mechanism. In addition, the return hot water flowing through the gap needs to contact the vertical pipe 1301 and the heat dissipation pipe 1303 at the same time, and both the vertical pipe 1301 and the heat dissipation pipe 1303 will absorb the heat of the return hot water and dissipate it to the surrounding air, thereby effectively improving the cooling effect of the return hot water. The pre-cooled water is delivered to the water cooling assembly 20, and the water cooling assembly 20 cools the return cooling water again. In the process of secondary cooling, the heat in the return cooling water is absorbed by the refrigerant in the evaporator 21, thereby reducing the temperature of the return cooling water. The cooled return cooling water is then delivered to the cold water chamber 5 through the water outlet pipe 27, and the refrigerant in the evaporator 21 is delivered to the condenser 23 through the refrigerant delivery pipe 28 and enters the compressor 22 to dissipate heat. In the process of heat dissipation, the heat on the condenser 23 is blown out of the water circulation box 3 by the condenser fan 25. The cooled refrigerant is then delivered to the evaporator 21 again to absorb the heat of the return cooling water, and the cycle continues.

[0061] When the cooling water circulation system is at night and the temperature drops to freezing point, the three-way electromagnetic valve 7 closes the output to the water pre-cooling mechanism and opens the output to the anti-icing water supply mechanism at this time. The return cooling water (i.e. return hot water) is directly delivered to the cold water chamber 5 through the anti-icing water supply mechanism to neutralize the cooling water in the cold water chamber 5 that reaches freezing point and prevent icing. In the process, the return hot water is directly delivered to the inside of the cold water chamber 5 through the return pipe 10 and the vertical water pipe 11.

[0062] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

[0063] The above description is only a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent substitutions or changes to the technical solutions and inventive concepts of the present application within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An improved aluminum extrusion cooling water circulation system, characterized by, The utility model provides a water cooling device, including bottom plate (1), the top end surface of bottom plate (1) is fixedly connected with a plurality of support blocks (2) along the length direction, a plurality of support blocks (2) top end are fixedly connected with water circulation box (3) in common, and the inside top end of water circulation box (3) is equipped with cold water cavity (5), cold water cavity (5) below is equipped with water cooling cavity (6), and cold water cavity (5) and water cooling cavity (6) are separated by the partition (4), the outside top end of water circulation box (3) is fixedly connected with the water outlet (17) of cold water cavity (5) intercommunication, and the outside bottom end of water circulation box (3) is fixedly connected with the water inlet (18) of water cooling cavity (6) intercommunication, the top end of water circulation box (3) is equipped with lifting heat preservation mechanism, the top wall of cold water cavity (5) is fixedly connected with temperature sensor (16), The bottom end one side of water cooling cavity (6) is fixedly connected with three way solenoid valve (7), and the input end of three way solenoid valve (7) is connected with water inlet (18), the output end of three way solenoid valve (7) is equipped with anti-icing water supply mechanism between cold water cavity (5), and another output end of three way solenoid valve (7) is connected with water precooling mechanism, one side of water precooling mechanism is equipped with water cooling assembly (20) connected therewith, and water cooling assembly (20) is connected with cold water cavity (5). The anti-icing water supply mechanism specifically includes: hot water delivery pipe (8) and water storage box (9), the hot water delivery pipe (8) is vertically connected between three way solenoid valve (7) and cold water cavity (5), and the bottom end surface of cold water cavity (5) is fixedly connected with a return bend (10) near the edge of the inner wall, the top end of hot water delivery pipe (8) penetrates the partition (4) and is communicated with the return bend (10), and the top end of return bend (10) is fixedly connected with a plurality of evenly distributed vertical water pipes (11), a plurality of through holes (12) are formed in the outer side of vertical water pipes (11) along the height direction thereof, the water storage box (9) is fixed on the hot water delivery pipe (8) below the partition (4), and an energy storage cavity is formed in the water storage box (9) and communicated with the hot water delivery pipe (8). The water precooling mechanism specifically includes: at least three horizontally arranged U-shaped pipes (13), the U-shaped pipe (13) includes two parallel vertical pipes (1301), the two vertical pipes (1301) are fixedly connected with a horizontal pipe (1302) at one end for communication, and a heat dissipation pipe (1303) is vertically fixedly connected with each of the two vertical pipes (1301) of each U-shaped pipe (13) in opposite directions, one end of the heat dissipation pipe (1303) penetrates the vertical pipe (1301), the horizontal pipe (1302) of the leftmost U-shaped pipe (13) is communicated with the three way solenoid valve (7), and the output end of the rightmost U-shaped pipe (13) is connected with the water cooling assembly (20). One end of the heat dissipation pipe (1303) penetrating the vertical pipe (1301) is connected with a heat-conducting copper pipe (14), and the other end of the heat-conducting copper pipe (14) is communicated with an exhaust fan (15) embedded in the outer side of the water circulation box (3).

2. The improved aluminum extrusion cooling water circulation system according to claim 1, wherein, The other end of the heat dissipation pipe (1303) is fixedly connected with a semicircular buffer head (1304).

3. The improved aluminum extrusion cooling water circulation system according to claim 2, wherein, The lifting heat preservation mechanism, in particular comprises: embedded in the water circulation tank (3) top center air cylinder (29), and the air cylinder (29) top output end fixedly connected with rock wool board (30), the bottom end surface corner position of rock wool board (30) is fixedly connected with guide shaft (31), and the guide shaft (31) bottom end is inserted in the guide groove (32) inside the water circulation tank (3) top surface corner opening.

4. The improved aluminum extrusion cooling water circulation system according to claim 3, wherein, The water cooling assembly (20), in particular includes: evaporator (21), compressor (22), condenser (23) and heat dissipation fan (25), the evaporator (21) and water precooling mechanism are communicated by water inlet pipe (26), and the evaporator (21) and cold water cavity (5) are communicated by water outlet pipe (27), the evaporator (21) and compressor (22) are communicated, compressor (22) and condenser (23) are communicated, condenser (23) and evaporator (21) are communicated by refrigerant conveying pipeline (28), the heat dissipation fan (25) is located at one side of condenser (23) to blow out the refrigerant heat outside water circulation tank (3).

5. The improved aluminum extrusion cooling water circulation system according to claim 4, wherein, The refrigerant conveying pipeline (28) between the condenser (23) and the evaporator (21) is provided with an expansion valve (24).

6. The improved aluminum extrusion cooling water circulation system according to claim 5, wherein, The outer side of the water circulation tank (3) is provided with a plurality of evenly distributed adjusting units, and the adjusting unit specifically includes: a rectangular groove (33) opened on the outer side of the water circulation tank (3), a turnover plate (34) rotatably connected inside the rectangular groove (33), and an inner side of the turnover plate (34) fixedly connected with an rubber plastic plate (35), a motor (36) embedded in one side of the top inner wall of the rectangular groove (33), and the motor (36) output end and the turnover plate (34) fixedly connected to drive the turnover plate (34) to rotate.

7. An improved method of circulating cooling water for an aluminum extrusion, characterized by, An improved aluminum extrusion cooling water circulation system according to any one of claims 1-6, comprising the following steps: Step one: during the day, the three-way electromagnetic valve (7) opens the output end to the water precooling mechanism and closes the output end to the anti-icing water supply mechanism; Step two: the return cooling water of the external aluminum extrusion equipment is delivered to the water precooling mechanism through the three-way electromagnetic valve (7), and the water precooling mechanism pre-cools the return cooling water; Step three: the water precooling mechanism delivers the pre-cooled return cooling water to the water cooling assembly (20), and the water cooling assembly (20) cools the return cooling water again; Step four: the water cooling assembly (20) delivers the cooled return cooling water to the cold water cavity (5) for subsequent extraction of cooling water from the cold water cavity (5) for use; Step five: when the temperature measured by the temperature sensor (16) reaches the freezing point at night, the three-way electromagnetic valve (7) closes the output end to the water precooling mechanism and opens the output end to the anti-icing water supply mechanism; Step six: the return cooling water of the external aluminum extrusion equipment is directly delivered to the cold water cavity (5) through the anti-icing water supply mechanism to neutralize the cooling water in the cold water cavity (5) that reaches the freezing point and prevent icing.

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