Automatic control system and method for magnetic suspension cooling-water machine

Abstract

The invention provides an automatic control system and method for a magnetic suspension water chiller, and relates to the technical field of control systems.The automatic control system comprises a hot cylinder, a cooling cylinder is fixed to the bottom of the hot cylinder, a water inlet is formed in the top of one side of the hot cylinder, one end of the hot cylinder is fixedly connected with the cooling cylinder through a pipeline, and a water outlet is formed in the other end of the cooling cylinder; the cooling device comprises a cooling cylinder, fixing frames are fixed to the two sides of the cooling cylinder, the two sides of the cooling cylinder are each provided with two cooling assemblies, each cooling assembly comprises an inner cylinder, a wrapping cylinder is fixed to the periphery of the inner cylinder, and a heat preservation box is arranged at the bottom of the cooling cylinder. The control system drives the cooling assembly to extract and disperse hot water in the heat preservation box to improve the cooling efficiency, then the hot water is fed into the cooling cylinder, the time needed by cooling can be accurately mastered according to the volume of the hot water sucked by the inner cylinder every time, and the system is more convenient to adjust and control.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of control systems, in particular to an automatic control system and method for a magnetic suspension water chiller. BACKGROUND

[0002] The magnetic suspension water chiller is usually provided with a control system and belongs to the intelligent manufacturing equipment industry. The industrial control system, the industrial host controller, the factory control system, the Internet of Things control system, the water chiller unit, also known as the chiller, the refrigeration unit, etc. is a large refrigeration equipment that can provide constant temperature, constant flow and constant pressure cooling water. The water chiller unit includes four main components: compressor, evaporator, condenser and expansion valve, thereby realizing the refrigeration and heating effect of the unit. In general fields, the water chiller unit adopts linear cooling mode. The defect of the mode is that the cooling speed is too fast, which is suitable for some special agricultural breeding industries. For example, if the cooling speed is too fast, it will cause excessive stimulation to mushrooms / fish or other similar crops.

[0003] In the prior art, the water temperature cooling mode of the water chiller unit is not convenient to accurately grasp the cooling time and water temperature, and is not convenient to automatically complete the adjustment and control through the system. SUMMARY

[0004] In view of the deficiencies in the prior art, the present application aims to provide an automatic control system and method for a magnetic suspension water chiller to solve the problems raised in the background art. The present application has a novel structure. By the required cooling time and water temperature, the control system drives the cooling component to extract hot water in the insulation box, disperses to improve the cooling efficiency, and then sends it into the inside of the cooling cylinder. The volume of hot water sucked by the inner cylinder each time can be used to accurately grasp the required cooling time, so that the system adjustment and control are more convenient.

[0005] In order to achieve the above object, the application is realized by the following technical scheme: a magnetic suspension cold water machine automatic control system, comprising a hot cylinder, the bottom of the hot cylinder is fixed with a cooling cylinder, the top of one side of the hot cylinder is provided with a water inlet, one end of the hot cylinder is fixedly connected with the cooling cylinder through a pipeline, the other end of the cooling cylinder is provided with a water outlet, the two sides of the cooling cylinder are fixedly provided with fixing frames, the two sides of the cooling cylinder are both provided with two groups of cooling assemblies, the cooling assembly comprises an inner cylinder, the outer periphery of the inner cylinder is fixedly provided with a wrapping cylinder, the bottom of the cooling cylinder is provided with a heat preservation box, and a vertical pipe is fixedly arranged between the middle top of the heat preservation box and the cooling cylinder, the two ends of the heat preservation box are fixedly provided with two suction pipes, the other end of the suction pipe is fixedly connected with one end of the inner cylinder, the bottom of the hot cylinder is provided with a driving assembly, the driving assembly comprises a connecting frame, the two ends of the cooling cylinder are provided with connecting frames, and the connecting frames move along the outer periphery of the cooling cylinder, the two ends of the cooling cylinder are provided with a switch assembly, the switch assembly comprises a sealing plate, the heat preservation box is provided with a sealing plate at the position corresponding to the connection port of the two suction pipes, and the sealing plate is blocked in the suction pipe.

[0006] Further, the cooling assembly further comprises an inlet and outlet pipe, the outer sides of the two ends of the wrapping cylinder are provided with inlet and outlet pipes, the side plate of one end of the inner cylinder close to the suction pipe is fixedly provided with a connecting pipe, and the other end of the connecting pipe is fixedly connected with the cooling cylinder.

[0007] Further, the two inner cylinders on one side of the cooling cylinder are arranged in an up-down staggered manner, and the connecting pipes of the two inner cylinders are connected with the two ends of the cooling cylinder respectively.

[0008] Further, the switch assembly further comprises a valve plate, the interiors of the connecting pipes and the vertical pipe are both rotatably installed with valve plates through bearings, the bottom of the connecting pipe corresponding to the valve plate is rotatably penetrated with a vertical shaft, the two sides of the vertical pipe are rotatably penetrated with horizontal shafts, and the vertical shafts and the horizontal shafts are fixedly connected with the valve plates corresponding thereto.

[0009] Further, the bottom of the vertical shaft is fixedly provided with a mounting plate, the surface of the mounting plate is installed with a transmission belt, one end of the transmission belt is fixedly connected with the vertical shaft through a belt wheel, the other end of the transmission belt is fixedly provided with a first bevel gear through a belt wheel, the surface of the horizontal shaft is fixedly provided with a second bevel gear at the positions corresponding to the two first bevel gears, and the first bevel gear is meshingly connected with the second bevel gear.

[0010] Further, the two ends of the horizontal shaft are fixedly provided with one-way screws, the one-way screws are rotatably installed on the top of the heat preservation box through bearing seats, the top of the heat preservation box is fixedly provided with a motor at the position corresponding to one side of the one-way screw, the surface of the one-way screw is threadedly sleeved with a screw block, and the screw block is fixedly provided with a moving frame.

[0011] Further, the moving frame is slidably penetrated into the interior of the heat preservation box and is fixedly provided with a horizontal plate, and the horizontal plate is fixedly connected with the sealing plate.

[0012] Further, the driving assembly further comprises a bidirectional screw rod, the bottom of the hot cylinder is rotatably installed with the bidirectional screw rod through a bearing seat, and the connecting frames are threadedly sleeved on the surfaces of two ends of the bidirectional screw rod, the bottom of the hot cylinder is fixed with a driving motor at a position corresponding to one end of the bidirectional screw rod, and the output end of the driving motor is fixedly connected with the bidirectional screw rod.

[0013] Further, the two bottom sides of the connecting frame are fixed with piston rods, the piston rods are slidably inserted into the inner cylinder, the inner cylinder is slidably installed with a piston plate, and the piston rods are fixedly connected with the piston plate.

[0014] An automatic control method of a magnetic suspension cold water machine, the control method comprising the following steps:

[0015] (1) setting the temperature when the unit starts, inputting the set temperature required to be reduced, and the time and speed of cooling;

[0016] (2) starting the unit, detecting the current real-time temperature, sending hot water into the inside of the cooling cylinder, and first sending part of the hot water into the inside of the heat preservation box, and sucking the hot water in the heat preservation box to the inner cylinder for rapid cooling through the driving assembly;

[0017] (3) opening the connection between the connecting pipe and the cooling cylinder through the switch assembly, and sending the cooling water in the inner cylinder into the inside of the cooling cylinder and mixing with the original hot water through the driving assembly;

[0018] (4) controlling the amount of hot water entering the inner cylinder each time through the driving assembly according to the cooling time required and the final water temperature, and slowly cooling the hot water in the cooling cylinder;

[0019] (5) finally sending the water cooled to the precise time from the outlet end of the cooling cylinder.

[0020] The beneficial effects of the present application are:

[0021] 1. The bidirectional screw rod is driven to rotate by the driving motor, the two connecting frames are threadedly matched with the bidirectional screw rod to move along the periphery of the cooling cylinder, so that the piston rods of the four inner cylinders are synchronously inserted into the inner cylinders and drive the piston plates to move, and the water in the inner cylinders is sucked and cooled and then sent into the inside of the cooling cylinder after the connecting pipe is closed by the suction pipe and opened by the connecting pipe, when the connecting pipe is opened by the suction pipe and closed, the hot water in the heat preservation box is sucked into the inner cylinder by the piston rods driving the piston plates to move outward, the hot water is exchanged with the cold water in the wrapping frame through the material of the inner cylinder which is easy to exchange heat, so that the water temperature is reduced.

[0022] 2. The present application can accurately measure the movement length of the piston rod through the distance measuring module, thereby calculating the volume of water in the inner cylinder. Through pre-test, for example, it takes an hour to reduce the water temperature to a certain temperature. During this process, the volume of water sucked into the inner cylinder at each time is constant. After repeated addition to the inside of the cooling cylinder, both the slow cooling of the water temperature and the accurate control of the time required to cool to the predetermined temperature are maintained. If subsequent cooling to a certain temperature is required within the same time, the system can automatically control the driving assembly and the cooling assembly to automatically complete the accurate cooling according to the same pumping frequency and the volume of water sucked into the inner cylinder at each time through the memory.

[0023] 3. The present application drives the one-way screw and the horizontal shaft to rotate through the motor. At this time, the horizontal shaft can drive the valve plate in the vertical pipe to rotate. The first bevel gear is engaged with the second bevel gear. Through the transmission of the transmission belt, the vertical shaft also synchronously drives the valve plate in the connecting pipe to rotate, so that the valve plates in the vertical pipe and the connecting pipe are synchronously opened and closed. In the closed state of the valve plate in the connecting pipe, hot water can be pumped into the inner cylinder. Then, the heat exchange between the inlet and outlet pipes and the inner cylinder is utilized. The rotation of the one-way screw drives the connecting frame to move. When the valve plate in the vertical pipe is opened, the sealing plate blocks the suction pipe to prevent the cooling water in the inner cylinder from flowing back into the heat preservation box, thereby realizing intermittent delivery of the cooling water.

[0024] 4. The present application connects the connecting pipes of the four inner cylinders with the cooling cylinder. The cooling water flowing out of the inner cylinder is sent into the cooling cylinder from four directions at both ends, so that the cooling water and the original hot water in the cooling cylinder are more uniformly mixed, avoiding the influence of uneven mixing on the accurate value of the water temperature. The temperature sensor in the cooling cylinder measures the water temperature.

[0025] 5. Compared with the prior art, the control system drives the cooling assembly to pump the hot water in the heat preservation box according to the required cooling time and water temperature, disperses the hot water to improve the cooling efficiency, and then sends the hot water into the cooling cylinder. The volume of the hot water pumped into the inner cylinder at each time can be accurately grasped, so that the system adjustment and control are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a flowchart of the automatic control method of the magnetic suspension cold water machine of the present application;

[0027] Figure 2 It is a schematic diagram of the overall structure of the automatic control system of the magnetic suspension cold water machine of the present application;

[0028] Figure 3 It is a schematic diagram of the driving assembly structure of the automatic control system of the magnetic suspension cold water machine of the present application;

[0029] Figure 4It is a cooling assembly structural schematic view of the automatic control system of the magnetic suspension cold water machine;

[0030] Figure 5 It is a separation schematic view of the inner cylinder and the wrapping cylinder of the automatic control system of the magnetic suspension cold water machine;

[0031] Figure 6 It is a connecting schematic view of the cooling cylinder and the heat preservation box of the automatic control system of the magnetic suspension cold water machine;

[0032] Figure 7 It is a connecting schematic view of the driving assembly and the valve plate of the automatic control system of the magnetic suspension cold water machine;

[0033] Figure 8 It is a driving assembly structural schematic view of the automatic control system of the magnetic suspension cold water machine;

[0034] Figure 9 It is a heat preservation box internal structure schematic view of the automatic control system of the magnetic suspension cold water machine.

[0035] In the figure: 1, hot cylinder; 11, water inlet; 2, cooling cylinder; 21, water outlet; 22, fixing frame; 3, cooling assembly; 31, wrapping cylinder; 32, inlet and outlet pipe; 33, connecting pipe; 34, suction pipe; 35, inner cylinder; 36, piston plate; 4, driving assembly; 41, bidirectional screw rod; 42, connecting frame; 43, piston rod; 44, driving motor; 5, heat preservation box; 51, vertical pipe; 52, valve plate; 6, switch assembly; 61, vertical shaft; 62, horizontal shaft; 63, unidirectional screw rod; 64, screw block; 65, moving frame; 66, mounting plate; 67, transmission belt; 68, first bevel gear; 69, second bevel gear; 610, horizontal plate; 611, sealing plate. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0037] Please refer to Figures 1 to 9 The present application provides a technical solution:

[0038] An automatic control method of a magnetic suspension cold water machine, the control method comprising the following steps:

[0039] (1) setting the temperature when the unit starts, and inputting the set temperature required to be reduced, and the time and speed of cooling;

[0040] (2) starting the unit, detecting the current real-time temperature, sending hot water into the inside of the cooling cylinder, and first entering part of the hot water into the inside of the heat preservation box, and sucking the hot water of the heat preservation box to the inner cylinder by the driving assembly for rapid cooling;

[0041] (3) the switch assembly opens the connection between the connecting pipe and the cooling cylinder, and the driving assembly is used to send the cooling water in the inner cylinder into the cooling cylinder to mix with the original hot water;

[0042] (4) the control system controls the amount of hot water entering the inner cylinder each time through the driving assembly according to the cooling time and the final water temperature, and slowly cools the hot water in the cooling cylinder;

[0043] (5) the water cooled to the precise time is finally sent out from the outlet end of the cooling cylinder.

[0044] An automatic control system of a magnetic levitation cold water machine, comprising a hot cylinder 1, a cooling cylinder 2 fixed at the bottom of the hot cylinder 1, a water inlet 11 formed at the top of one side of the hot cylinder 1, and the hot cylinder 1 fixedly connected with the cooling cylinder 2 through a pipe at one end, a water outlet 21 formed at the other end of the cooling cylinder 2, fixed frames 22 fixed at both sides of the cooling cylinder 2, two groups of cooling assemblies 3 arranged at both sides of the cooling cylinder 2, the cooling assembly 3 comprising an inner cylinder 35, a wrapping cylinder 31 fixed around the outer periphery of the inner cylinder 35, a heat preservation box 5 arranged at the bottom of the cooling cylinder 2, a vertical pipe 51 fixed between the middle top of the heat preservation box 5 and the cooling cylinder 2, two suction pipes 34 fixed at both ends of the heat preservation box 5, the other end of the suction pipe 34 fixedly connected with one end of the inner cylinder 35, a driving assembly 4 arranged at the bottom of the hot cylinder 1, the driving assembly 4 comprising a connecting frame 42, the connecting frame 42 arranged at both ends of the cooling cylinder 2 and moving along the outer periphery of the cooling cylinder 2, a switch assembly 6 arranged at both ends of the cooling cylinder 2, the switch assembly 6 comprising a sealing plate 611, the sealing plate 611 arranged inside the heat preservation box 5 at a position corresponding to the connecting port of the two suction pipes 34 and plugged in the suction pipe 34, in the present scheme, the structure composed of the hot cylinder 1 and the cooling cylinder 2 is the same as the working principle of the existing magnetic levitation cold water machine, the hot water is finally sent into the cooling cylinder 2, part of the hot water is first sent into the heat preservation box 5 to avoid the influence of the temperature of the flowing water on the accurate control of the water temperature reduction time, the cooling assembly 3 is used to draw the hot water from the heat preservation box 5 and send it into the cooling cylinder 2 after cooling, and the control system is used to accurately control the time required for reducing the water temperature.

[0045] The cooling assembly 3 further comprises an inlet and outlet pipe 32, both ends of the outer side of the wrapping cylinder 31 are provided with the inlet and outlet pipe 32, the side plate of the inner cylinder 35 close to one end of the suction pipe 34 is fixedly connected with a connecting pipe 33, the other end of the connecting pipe 33 is fixedly connected with the cooling cylinder 2, two inner cylinders 35 on one side of the cooling cylinder 2 are arranged in an up-down staggered manner, the connecting pipes 33 of the two inner cylinders 35 are respectively connected with two ends of the cooling cylinder 2, the connecting pipes 33 of the four inner cylinders 35 are connected with the cooling cylinder 2, the cooling water flowing out of the inner cylinder 35 is sent into the cooling cylinder 2 from four directions of two ends of the cooling cylinder 2, so that the cooling water and the original hot water in the cooling cylinder 2 are mixed more uniformly, the uniformity of the mixed water is avoided to affect the accurate value of the water temperature, and the temperature sensor in the cooling cylinder 2 measures the water temperature.

[0046] The switch assembly 6 further comprises a valve plate 52, the valve plate 52 is rotatably installed in the connecting pipe 33 and the vertical pipe 51, the bottom of the connecting pipe 33 is rotatably penetrated with a vertical shaft 61 corresponding to the valve plate 52, both sides of the vertical pipe 51 are rotatably penetrated with a horizontal shaft 62, the vertical shaft 61 and the horizontal shaft 62 are fixedly connected with the valve plate 52 corresponding thereto, the bottom of the vertical shaft 61 is fixedly connected with a mounting plate 66, the surface of the mounting plate 66 is mounted with a transmission belt 67, one end pulley of the transmission belt 67 is fixedly connected with the vertical shaft 61, the other end pulley of the transmission belt 67 is fixedly connected with a first bevel gear 68, the surface of the horizontal shaft 62 is fixedly connected with a second bevel gear 69 corresponding to the positions of the two first bevel gears 68, the first bevel gear 68 is meshingly connected with the second bevel gear 69, both ends of the horizontal shaft 62 are fixedly connected with a one-way screw rod 63, the one-way screw rod 63 is rotatably installed on the top of the heat preservation box 5 through a bearing seat, a motor is fixedly connected with one side of the one-way screw rod 63 on the top of the heat preservation box 5, the surface of the one-way screw rod 63 is threadedly sleeved with a screw block 64, the screw block 64 is fixedly connected with a moving frame 65, the moving frame 65 is slidably penetrated into the heat preservation box 5 and is fixedly connected with a horizontal plate 610, the horizontal plate 610 is fixedly connected with a sealing plate 611, the motor drives the one-way screw rod 63 and the horizontal shaft 62 to rotate, at this time, the horizontal shaft 62 can drive the valve plate 52 in the vertical pipe 51 to rotate, the first bevel gear 68 is meshingly connected with the second bevel gear 69, the vertical shaft 61 is also synchronously driven to rotate the valve plate 52 in the connecting pipe 33 through the transmission of the transmission belt 67, so that the valve plate 52 in the vertical pipe 51 and the connecting pipe 33 is synchronously opened and closed, in the closed state of the valve plate 52 in the connecting pipe 33, the hot water can be sucked into the inner cylinder 35, and then heat exchange is carried out between the inlet and outlet pipe 32, the wrapping frame and the inner cylinder 35, the rotation of the one-way screw rod 63 drives the connecting frame 42 to move, when the valve plate 52 in the vertical pipe 51 is opened, the sealing plate 611 blocks the suction pipe 34, preventing the cooling water in the inner cylinder 35 from flowing back into the heat preservation box 5, thereby realizing intermittent delivery of the cooling water.

[0047] The driving assembly 4 further comprises a bidirectional screw 41, the bottom of the hot cylinder 1 is rotatably installed with the bidirectional screw 41 through a bearing seat, and connecting frames 42 are threadedly sleeved on the surfaces of the two ends of the bidirectional screw 41, the bottom of the hot cylinder 1 is fixed with a driving motor 44 at the position corresponding to one end of the bidirectional screw 41, and the output end of the driving motor 44 is fixedly connected with the bidirectional screw 41, the bottom of each side of the connecting frame 42 is fixed with a piston rod 43, and the piston rod 43 is slidably inserted into the inner cylinder 35, the inner cylinder 35 is slidably installed with a piston plate 36, and the piston rod 43 is fixedly connected with the piston plate 36, the driving motor 44 drives the bidirectional screw 41 to rotate, the two connecting frames 42 are threadedly matched with the bidirectional screw 41 and move along the periphery of the cooling cylinder 2, so that the piston rods 43 of the four groups of inner cylinders 35 are synchronously inserted into the inner cylinder 35 and drive the piston plate 36 to move, after the suction pipe 34 is closed and the connecting pipe 33 is opened, the water in the inner cylinder 35 can be sucked and cooled and then sent into the cooling cylinder 2, when the suction pipe 34 is opened and the connecting pipe 33 is closed, the piston plate 36 is driven to move outward by the piston rod 43, the hot water in the heat preservation box 5 is sucked into the inner cylinder 35, the inner cylinder 35 is made of a material that is easy to exchange heat, and the hot water in the inner cylinder 35 exchanges heat with the cold water in the wrapping frame, so that the temperature of the water is reduced, and the water is mixed with the original hot water in the cooling cylinder 2, the moving length of the piston rod 43 can be accurately measured by a distance measuring module, so that the volume of the water in the inner cylinder 35 is calculated, through the pre-test, for example, it takes one hour to reduce the temperature of the water to a certain temperature, in this process, the volume of the water sucked into the inner cylinder 35 is certain, and after repeatedly adding into the cooling cylinder 2, the slow cooling of the water temperature is maintained, and the time required for cooling to the predetermined temperature can be accurately mastered, and if the water needs to be cooled to a certain temperature in the same time in the future, the system can automatically control the driving assembly 4 and the cooling assembly 3 to automatically complete the accurate cooling according to the same suction frequency and the volume of the water sucked into the inner cylinder 35 each time.

[0048] When the device is used, hot water is finally sent into the cooling cylinder 2, part of the hot water first enters the heat preservation box 5, so as to avoid the influence of temperature flow on the accurate control of the time of water temperature reduction, the connecting pipe 33 of the four inner cylinders 35 is connected with the cooling cylinder 2, the cooling water flowing out of the inner cylinder 35 is sent into the cooling cylinder 2 from four directions at both ends of the cooling cylinder 2, so that the cooling water and the original hot water in the cooling cylinder 2 are mixed more uniformly, the influence of uneven mixing on the accurate value of water temperature is avoided, the water temperature in the cooling cylinder 2 is measured by the temperature sensor in the cooling cylinder 2, the motor drives the unidirectional screw rod 63 and the horizontal shaft 62 to rotate, at this time, the horizontal shaft 62 can drive the valve plate 52 in the vertical pipe 51 to rotate, the first bevel gear 68 is engaged with the second bevel gear 69, the vertical shaft 61 will also drive the valve plate 52 in the connecting pipe 33 to rotate synchronously through the transmission of the transmission belt 67, so that the vertical pipe 51 and the connecting pipe 33 open and close the valve plate 52 synchronously, when the valve plate 52 in the connecting pipe 33 is closed, the hot water can be sucked into the inner cylinder 35, and then heat exchange is carried out between the inner cylinder 35 and the wrapping frame through the inlet and outlet pipe 32, the rotation of the unidirectional screw rod 63 drives the connecting frame 42 to move, when the valve plate 52 in the vertical pipe 51 is opened, the sealing plate 611 blocks the suction pipe 34, so as to prevent the cooling water in the inner cylinder 35 from flowing back into the heat preservation box 5, and then intermittent delivery of the cooling water can be realized, the driving motor 44 drives the bidirectional screw rod 41 to rotate, the two connecting frames 42 are threadedly connected with the bidirectional screw rod 41 and move along the periphery of the cooling cylinder 2, so that the piston rods 43 of the four groups of inner cylinders 35 synchronously penetrate into the inner cylinder 35 and drive the piston plates 36 to move, in this process, after the suction pipe 34 is closed and the connecting pipe 33 is opened, the water in the inner cylinder 35 can be sucked and cooled and then sent into the cooling cylinder 2, when the suction pipe 34 is opened and the connecting pipe 33 is closed, the piston plate 36 is driven to move outward by the piston rod 43, so as to suck the hot water in the heat preservation box 5 into the inner cylinder 35, heat exchange is carried out between the inner cylinder 35 and the cold water in the wrapping frame through the material of the inner cylinder 35 which is easy to exchange heat, so as to reduce the water temperature, the subsequent hot water in the cooling cylinder 2 is mixed, so as to reduce the water temperature, the movement length of the piston rod 43 can be accurately measured by the distance measuring module, so as to calculate the volume of the water in the inner cylinder 35, through the pre-test, for example, it takes one hour to reduce the water temperature to a certain temperature, in this process, the volume of the water sucked into the inner cylinder 35 is certain, after repeatedly adding into the cooling cylinder 2, the slow reduction of the water temperature is maintained, and the time required for cooling to the predetermined temperature can be accurately controlled, if subsequent cooling to a certain temperature is required in the same time, through the memory of the system, the driving assembly 4 and the cooling assembly 3 can automatically control and automatically complete the accurate cooling according to the same suction frequency and the volume of the water sucked into the inner cylinder 35 each time.

[0049] The foregoing merely illustrates the principles of the application and various embodiments are now described with reference to the drawings. This application is not limited to the embodiments described but is intended to encompass any and all changes and modifications within the spirit and scope of the underlying principles thereof. Thus, to those skilled in the art, it will be apparent from this disclosure that various modifications and changes can be made in the implementation without departing from the true spirit and scope of the application.

[0050] In addition, it should be understood that although the description herein is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description herein is made only for the sake of clarity, and those skilled in the art should understand the description as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An automatic control system for a magnetic levitation chiller, comprising a heating cylinder (1), characterized in that: A cooling cylinder (2) is fixed to the bottom of the heating cylinder (1). A water inlet (11) is provided on the top of one side of the heating cylinder (1). One end of the heating cylinder (1) is fixedly connected to the cooling cylinder (2) through a pipe. A water outlet (21) is provided at the other end of the cooling cylinder (2). Fixing frames (22) are fixed on both sides of the cooling cylinder (2). Two sets of cooling components (3) are provided on both sides of the cooling cylinder (2). The cooling component (3) includes an inner cylinder (35). A wrapping cylinder (31) is fixed around the inner cylinder (35). A heat preservation box (5) is provided at the bottom of the cooling cylinder (2). A vertical pipe (51) is fixed between the top of the heat preservation box (5) and the cooling cylinder (2). Two suction pipes (34) are fixed at both ends of the heat preservation box (5). The other end of the suction pipe (34) is fixedly connected to one end of the inner cylinder (35). The bottom of the heat cylinder (1) is provided with a driving assembly (4). The driving assembly (4) includes a connecting frame (42). The two ends of the cooling cylinder (2) are provided with connecting frames (42), and the connecting frames (42) move along the periphery of the cooling cylinder (2). The two ends of the cooling cylinder (2) are provided with a switch assembly (6). The switch assembly (6) includes a sealing plate (611). The inside of the heat preservation box (5) is provided with a sealing plate (611) corresponding to the connection port of the two suction pipes (34), and the sealing plate (611) is blocked inside the suction pipe (34).

2. The automatic control system for a magnetic levitation chiller according to claim 1, characterized in that: The cooling component (3) also includes an inlet and outlet pipe (32). The outer ends of the wrapping cylinder (31) are provided with inlet and outlet pipes (32). The inner cylinder (35) has a connecting pipe (33) fixed on the side plate near the suction pipe (34), and the other end of the connecting pipe (33) is fixedly connected to the cooling cylinder (2).

3. The automatic control system for a magnetic levitation chiller according to claim 2, characterized in that: The two inner cylinders (35) on one side of the cooling cylinder (2) are staggered vertically, and the connecting pipes (33) of the two inner cylinders (35) are respectively connected to the two ends of the cooling cylinder (2).

4. The automatic control system for a magnetic levitation chiller according to claim 3, characterized in that: The switch assembly (6) also includes a valve plate (52). The valve plate (52) is rotatably mounted inside the connecting pipe (33) and the vertical pipe (51) through bearings. A vertical shaft (61) is rotatably protruding from the bottom of the connecting pipe (33) corresponding to the valve plate (52). Horizontal shafts (62) are rotatably protruding from both sides of the vertical pipe (51). The vertical shaft (61) and the horizontal shaft (62) are fixedly connected to their respective valve plates (52).

5. The automatic control system for a magnetic levitation chiller according to claim 4, characterized in that: A mounting plate (66) is fixed to the bottom of the vertical shaft (61). A transmission belt (67) is mounted on the surface of the mounting plate (66). One end of the transmission belt (67) is connected to the vertical shaft (61) by a pulley. A first bevel gear (68) is fixed to the pulley at the other end of the transmission belt (67). A second bevel gear (69) is fixed on the surface of the horizontal shaft (62) at a position corresponding to the two first bevel gears (68). The first bevel gear (68) and the second bevel gear (69) are meshed together.

6. The automatic control system for a magnetic levitation chiller according to claim 5, characterized in that: One-way screws (63) are fixed at both ends of the horizontal shaft (62). The one-way screws (63) are rotatably mounted on the top of the insulation box (5) through bearing seats. A motor is fixed at the position of the one-way screw (63) on one side of the top of the insulation box (5). A screw block (64) is threaded onto the surface of the one-way screw (63), and a moving frame (65) is fixed to the screw block (64).

7. The automatic control system for a magnetic levitation chiller according to claim 6, characterized in that: The movable frame (65) slides into the inside of the insulated box (5) and is fixed with a horizontal plate (610), and the horizontal plate (610) is fixedly connected to the sealing plate (611).

8. The automatic control system for a magnetic levitation chiller according to claim 1, characterized in that: The drive assembly (4) also includes a bidirectional screw (41). The bottom of the heat cylinder (1) is rotatably mounted with the bidirectional screw (41) through a bearing seat, and the connecting frame (42) is threaded onto the two end surfaces of the bidirectional screw (41). A drive motor (44) is fixed at the bottom of the heat cylinder (1) at one end of the bidirectional screw (41), and the output end of the drive motor (44) is fixedly connected to the bidirectional screw (41).

9. The automatic control system for a magnetic levitation chiller according to claim 8, characterized in that: Piston rods (43) are fixed to the bottom of both sides of the connecting frame (42), and the piston rods (43) are slidably inserted into the inner cylinder (35). A piston plate (36) is slidably installed in the inner cylinder (35), and the piston rods (43) are fixedly connected to the piston plate (36).

10. An automatic control method for a magnetic levitation chiller implemented according to the system described in claim 1, characterized in that: The control method includes the following steps: (1) Set the temperature when the unit starts up, and input the set temperature to be reduced to, as well as the cooling time and speed; (2) Start the unit, detect the current real-time temperature, send hot water into the cooling cylinder, and some hot water first enters the insulation box. The hot water in the insulation box is drawn into the inner cylinder by the drive component to cool down quickly. (3) The switch assembly opens the connection between the connecting pipe and the cooling cylinder, and the driving assembly sends the cooling water in the inner cylinder into the cooling cylinder to mix with the original hot water. (4) The control system controls the amount of hot water entering the inner cylinder each time according to the required cooling time and the final water temperature, so as to slowly cool the hot water in the cooling cylinder. (5) Finally, the water that has been cooled at the precise time is sent out from the outlet of the cooling cylinder.

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