Water chiller

Abstract

The water cooling machine comprises a water tank, an evaporator and a water suction pump, the water tank is cylindrical, the top end of the water tank is open, a water supplementing pipe is arranged on the side wall of the water tank, the evaporator is arranged on one side of the water tank, a water inlet pipe communicates with the water inlet end of the evaporator, and the water outlet end of the evaporator communicates with the bottom end of the water tank; the water inlet pipe is provided with a filtering assembly for filtering water, the water suction pump is arranged on the other side of the water tank, the water suction end of the water suction pump is communicated with the bottom end of the water tank, and the water drainage end of the water suction pump is connected with a water outlet pipe. The cooling-water machine has the effect of improving the maintenance convenience of the cooling-water machine.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a water chiller. Background Art

[0002] Chillers are a common type of refrigeration equipment that plays a variety of important roles in modern life and industrial production. First, their primary function is to provide a stable cooling source, which is essential in many settings, such as factory production workshops, central air conditioning systems in office buildings, and laboratories, ensuring the proper functioning of equipment, the comfort of personnel, and the accuracy of experiments. Second, chillers lower the operating temperature of equipment, protecting it from heat damage, extending its service life, and improving production efficiency.

[0003] Chinese patent publication number CN209811869U discloses a circulating water chiller for heat dissipation of machine tools, comprising a housing, a water tank and a compressor fixedly connected to the inner bottom wall of the housing, a heat dissipation port opened on the side wall of the housing, a heat dissipation fan installed in the heat dissipation port, a condenser fixedly installed on the inner wall of the housing, and the condenser is located at the heat dissipation port, an evaporator is installed inside the water tank, the evaporator and condenser are both connected to the compressor and form a refrigeration circuit, a water outlet pipe is connected to the side wall of the water tank, the water outlet pipe passes through the inner wall of the housing and extends to the outside, and a second booster pump connected to the water outlet pipe is installed in the water tank. The utility model can cool the head of the machine tool by circulating refrigerated water, and by providing a cooling heat absorption mechanism, the heat on the machine tool housing can be further quickly absorbed to achieve cooling, thereby ensuring good cooling and heat dissipation effect and improving the processing stability of the machine tool.

[0004] Regarding the related technologies mentioned above, the water-cooling machine in the prior art has an evaporator, a first booster pump and a second booster pump installed in its water tank. The evaporator, the first booster pump and the second booster pump have many pipelines, and they are all located in the water tank. Therefore, after long-term use, when the inside of the water tank is maintained and cleaned, there are many dead corners in the water tank corresponding to the positions of the evaporator, the first booster pump and the second booster pump that cannot be maintained, and dirt is easily corroded, which affects the water quality.

[0005] Application Contents In order to solve the above-mentioned defects, the present application provides a chiller.

[0006] This application provides a chiller adopting the following technical solution: A chiller includes a water tank, an evaporator and a water pump. The water tank is cylindrical and has an opening at the top. A water supply pipe is provided on the side wall of the water tank. The evaporator is provided on one side of the water tank. The water inlet end of the evaporator is installed with a water inlet pipe. The water outlet end of the evaporator is connected to the bottom end of the water tank. A filter assembly for filtering water is provided on the water inlet pipe. The water pump is provided on the other side of the water tank. The water pumping end of the water pump is connected to the bottom end of the water tank. The water discharge end of the water pump is connected to the water outlet pipe.

[0007] By adopting the above technical solution, during cooling, water enters the evaporator from the water inlet pipe, is filtered by the filter assembly during this process, and then enters the water tank after being cooled by the evaporator, where it mixes with the higher temperature water to cool the water. The water pump is then started, and the cooled water is discharged through the outlet pipe, achieving the effect of cooling the water. The cylindrical setting of the water tank is not only conducive to quickly mixing the cold water with the higher temperature water, but also leaves no dead corners in the water tank, which is conducive to the subsequent cleaning of the water tank. At the same time, the evaporator is set outside the water tank, making it completely independent and convenient for subsequent maintenance. Compared with the existing technology, the water tank and evaporator are more convenient to maintain, the possibility of dirt remaining inside the water tank is reduced, and the maintenance convenience of the chiller is improved.

[0008] Optionally, the filter assembly includes a filter box, a lifting plate and a filter element, the filter box is connected to one side of the water tank, the filter box is connected to the water inlet pipe, the filter box is vertically provided with a lifting groove, the lifting plate slides in the lifting groove, a driving assembly for driving the lifting plate to move is provided on the filter box, several filter elements are installed on the lifting plate, the filter element is used to filter water, and a sealing element for sealing water is provided in the filter box.

[0009] By adopting the above technical solution, during filtration, water enters the filter box from the water inlet pipe, is filtered by the filter element, and then enters the evaporator, achieving the effect of filtering water. When replacing the filter element, the drive assembly drives the lifting plate to move until the filter element in the filter box is removed and a new filter element is inserted into the filter box to complete the filter element replacement, ensuring that the water can be filtered normally during the installation and removal of the filter element.

[0010] Optionally, the driving assembly includes a driving motor, a rotating gear and a connecting rack, the connecting rack is connected to one side of the lifting plate, an avoidance gap is opened on the filter box at a position corresponding to the connecting rack, the rotating gear is rotatably connected to the filter box, and is partially located in the avoidance gap, the rotating gear and the connecting rack are engaged, the driving motor is installed on the filter box, and is coaxially connected to the rotating gear.

[0011] By adopting the above technical solution, when driving the lifting plate to move, the driving motor is started to rotate the rotating gear, which engages with the connecting rack to drive the connecting rack to move, thereby achieving the effect of moving the lifting plate.

[0012] Optionally, the filter element includes a mounting cylinder, a charging bag and a filter screen, the mounting cylinder is opened at one end and has a plurality of water-permeable holes at the other end, the lifting plate is provided with a mounting groove, the bottom wall of the mounting groove is provided with a water-permeable groove, the mounting cylinder is located in the mounting groove, the lifting plate is provided with a limiting component for limiting the mounting cylinder, the charging bag is provided in the mounting cylinder, the charging bag is made of water-permeable material, the charging bag is filled with activated carbon, and the filter screen is installed at the opening of the mounting cylinder.

[0013] By adopting the above technical solution, the filter is used to intercept larger particles of dirt in the water, so that the larger dirt accumulates in the filter box, and the activated carbon absorbs fine impurities and odors in the water to improve the water quality and achieve the effect of filtering water.

[0014] Optionally, a gap is left between the filter screen and the charging bag, and a plurality of connecting posts are connected to the filter screen, and the connecting posts contact the charging bag.

[0015] By adopting the above technical solution, if the filter screen contacts the charging bag, larger particles of dirt will accumulate on the filter screen and also cover a portion of the charging bag, which can easily reduce the amount of water filtered and lower the water filtration efficiency of the filter element. By providing a connecting post to separate the charging bag and the filter screen, the possibility of larger particles of dirt clogging the charging bag is reduced, thus ensuring the water filtration efficiency of the filter element.

[0016] Optionally, a drain trough is provided in the filter box at a position corresponding to the filter screen, and a dirt baffle is provided at the notch of the drain trough. Two limiting rails are connected to the surface of the filter box, and the dirt baffle slides on the two limiting rails, and the dirt baffle covers the notch of the drain trough.

[0017] By adopting the above technical solution, the sewage trough is used to pile up larger particles of sewage. When the sewage accumulates to a certain amount, the sewage baffle is moved. After the sewage is discharged, the sewage baffle is closed by the sewage trough slot, thereby achieving the effect of accumulating and discharging larger particles of sewage.

[0018] The cam is secured to the upper edge of the support frame, and the cam is secured to the lower edge of the support frame, and the cam is secured to the lower edge of the support frame.

[0019] By adopting the above technical solution, when limiting the installation cylinder, the rotating wheel is turned, and the two limiting arc rods are moved by pulling the rope, and the pressure spring is compressed. Then the installation cylinder is placed in the installation groove, and the rotating wheel is released. The limiting arc rod moves in the opposite direction under the action of the pressure spring until one end of the limiting arc rod is inserted into the connecting block, thereby limiting the freedom of the installation cylinder and realizing the installation of the installation cylinder.

[0020] Optionally, a water distribution pipe is connected between the water outlet pipe and the water inlet pipe, and a three-way solenoid valve is provided on the water distribution pipe.

[0021] By adopting the above technical solution, during refrigeration, not only can the refrigerated water be mixed with the water in the water tank to achieve the purpose of cooling, but the water in the water tank can also be refrigerated through the evaporator through the cooperation of the water pump and the water distribution pipe. The two are carried out simultaneously, thereby improving the refrigeration efficiency of the chiller.

[0022] Optionally, the inner surface of the water tank is covered with hydrophilic aluminum foil.

[0023] By adopting the above technical solution, the hydrophilic aluminum foil is used to increase the heat exchange area of ​​the water in the water tank, so that more water with higher temperature can be cooled per unit time, thereby increasing the cooling rate of the water in the water tank.

[0024] Optionally, a sealing cover and an installation assembly are provided on the top of the water tank, and the installation assembly includes a limiting block, an ejection spring and a sliding ring plate. The sliding ring plate is arranged in the sealing cover, and the ejection spring is arranged in the sealing cover and connected between the inner top wall of the sealing cover and the sliding ring plate. The limiting block is connected to several blocks on the inner ring wall of the sealing cover, and an extension ring is connected to the top of the water tank. The extension ring has an avoidance channel and a limiting groove corresponding to the position of the limiting block, and the opening of the limiting groove faces downward. When installed, the limiting block is located in the limiting groove.

[0025] By adopting the above technical solution, during maintenance, the cover is pressed and rotated, the ejection spring is compressed, the limiting block disengages from the limiting groove, and moves to the escape channel. The cover is then released, and the cover is lifted by the ejection spring, driving the limiting block up and out of the escape channel. The cover is then opened, and the interior of the water tank can be cleaned and maintained. This reduces the number of steps required to install and remove the cover, and is quick and efficient, improving the efficiency of internal water tank maintenance.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The cylindrical shape of the water tank is not only conducive to quickly mixing cold water with higher temperature water, but also leaves no dead corners in the water tank, which is conducive to the cleaning of the water tank in the future. At the same time, the evaporator is set outside the water tank, making it completely independent and convenient for later maintenance. Compared with the existing technology, it improves the maintenance convenience of the water tank and evaporator, reduces the possibility of dirt remaining inside the water tank, and improves the maintenance convenience of the chiller; 2. When limiting the installation tube, turn the rotating wheel and pull the rope to move the two limiting arc rods, compressing the pressure spring. Then put the installation tube into the installation groove, loosen the rotating wheel, and the limiting arc rod moves in the opposite direction under the action of the pressure spring until one end of the limiting arc rod is inserted into the connecting block, thereby limiting the freedom of the installation tube and realizing the installation of the installation tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the chiller in the embodiment of the present application.

[0028] Figure 2 It is a structural diagram of the water distribution pipe and the water pump in the embodiment of the present application.

[0029] Figure 3 It is an exploded view used to illustrate the structure of the cover and mounting assembly in the embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view used to illustrate the installation component structure in the embodiment of the present application.

[0031] Figure 5 It is a structural diagram of the filter component and the drive component in the embodiment of the present application.

[0032] Figure 6 It is an exploded view used to illustrate the structure of the filter element in the embodiment of the present application.

[0033] Figure 7 It is an exploded view used to reflect the structure of the restricted component in the embodiment of the present application.

[0034] Figure 8 It is a cross-sectional view used to illustrate the interior of the filter box and the filter element structure in the embodiment of the present application.

[0035] Explanation of reference numerals: 1, water tank; 11, water supply pipe; 12, drain pipe; 13, cover; 131, restriction ring; 14, avoidance channel; 15, restriction groove; 2, evaporator; 21, water inlet pipe; 3, water pump; 31, water outlet pipe; 311, water distribution pipe; 312, three-way solenoid valve; 4, filter assembly; 41, filter box; 411, drain trough; 412, dirt baffle; 42, lifting plate; 421, receiving tank; 422, cover plate; 43, filter element; 4 31. Mounting cylinder; 432. Charging bag; 433. Filter screen; 4331. Connecting column; 5. Driving assembly; 51. Driving motor; 52. Rotating gear; 53. Connecting rack; 6. Limiting assembly; 61. Limiting arc rod; 611. Mounting plate; 612. Pull rope; 62. Pressure spring; 63. Rotating wheel; 631. Toggle flange; 64. Connecting block; 7. Seal; 8. Mounting assembly; 81. Limiting block; 82. Ejection spring; 83. Sliding ring plate. DETAILED DESCRIPTION

[0036] The following is combined with Figures 1-8 This application is described in further detail.

[0037] The present application embodiment discloses a chiller. Figure 1 and Figure 2 The chiller includes a water tank 1, an evaporator 2, and a water pump 3. The water tank 1 is cylindrical and has an open top. A water supply pipe 11 is located near the top of the water tank 1, and a drain pipe 12 is located at the bottom. The inner surface of the water tank 1 is covered with hydrophilic aluminum foil to increase the cooling rate of the water in the water tank 1.

[0038] Reference Figure 2 、 Figure 3 and Figure 4 A cover 13 and a mounting assembly 8 are provided at the top of the water tank 1. The mounting assembly 8 includes a limiting block 81, an ejection spring 82 and a sliding ring plate 83. A limiting ring 131 is fixedly connected to the inner top wall of the cover 13. The sliding ring plate 83 is arranged inside the cover 13, and the outer ring wall of the sliding ring plate 83 fits the inner ring wall of the cover 13. The inner ring wall diameter of the sliding ring plate 83 is consistent with the outer ring wall diameter of the limiting ring 131. The ejection spring 82 is sleeved on the limiting ring 131 and welded between the inner top wall of the cover 13 and the sliding ring plate 83. Several limiting blocks 81 are fixedly connected to the inner ring wall of the cover 13. In this embodiment, four blocks are used as an example. An extension ring is fixedly connected to the surface of the water tank 1 near the top. An avoidance channel 14 and a limiting groove 15 are opened on the extension ring at the position corresponding to the limiting block 81. The limiting groove 15 is a U-shaped groove with an opening facing downward.

[0039] When sealing the water tank 1, the cover 13 is sleeved on the water tank 1, the cover 13 is pressed and rotated, the ejection spring 82 is compressed, the limiting block 81 passes through the avoidance channel 14, and moves to the position of the limiting groove 15, the cover 13 is released, and the cover 13 moves upward under the force of the ejection spring 82, driving the limiting block 81 to rise and enter the limiting groove 15, thereby limiting the freedom of the cover 13 and realizing the installation of the cover 13.

[0040] Reference Figure 1 and Figure 5 The evaporator 2 is mounted on one side of the water tank 1. A water inlet pipe 21 is mounted on the water inlet of the evaporator 2, and the water outlet is connected to the bottom of the water tank 1. A filter assembly 4 is mounted on the water inlet pipe 21. The filter assembly 4 comprises a filter box 41, a lifting plate 42, and a filter element 43. The filter box 41 is fixedly connected to the side of the water tank 1. A lifting slot is vertically defined in the filter box 41. An inlet pipe and an outlet pipe are fixedly connected to the side wall of the filter box 41. Both the inlet pipe and the outlet pipe are connected to the lifting slot. The filter box 41 is mounted on the water inlet pipe 21 via the inlet and outlet pipes.

[0041] Reference Figure 5 The lifting plate 42 slides within the lifting slot. The filter box 41 is provided with a drive assembly 5, which includes a drive motor 51, a rotating gear 52, and a connecting rack 53. The connecting rack 53 is fixedly connected to one side of the lifting plate 42 and is parallel to the movement direction of the lifting plate 42. An escape notch is provided in the filter box 41 at the position corresponding to the connecting rack 53. The rotating gear 52 is rotationally connected to one side of the filter box 41 and is partially located within the escape notch. The rotating gear 52 meshes with the connecting rack 53. The drive motor 51 is mounted on the filter box 41 and is coaxially connected to the rotating gear 52.

[0042] Reference Figure 6 , several filter elements 43 are provided. In this embodiment, four are taken as an example. The filter elements 43 include a mounting tube 431, a charging bag 432 and a filter screen 433. One end of the mounting tube 431 is open, and the other end is provided with a plurality of water-permeable holes. Three mounting grooves are provided on the lifting plate 42, and a water-permeable groove is provided at the bottom of the mounting groove. The mounting tube 431 is placed in the mounting groove. The charging bag 432 is provided in the mounting tube 431. The charging bag 432 is made of a water-permeable material, which includes a mixture of non-woven fabrics, paper materials and other materials. The charging bag 432 is filled with activated carbon. The filter screen 433 is installed at the opening of the mounting tube 431, and a gap is left between it and the charging bag 432. A plurality of connecting columns 4331 are fixedly connected to the filter screen 433, and the connecting columns 4331 are in contact with the charging bag 432.

[0043] Reference Figure 7The lifting plate 42 is provided with a limiting assembly 6, which includes a limiting arc rod 61, a pressure spring 62, a rotating wheel 63, and a connecting block 64. A receiving slot 421 is provided on the lifting plate 42 at a position corresponding to the mounting cylinder 431. Two fixed blocks are fixedly connected within the receiving slot 421. The two fixed blocks are arranged opposite each other. The limiting arc rod 61 slides over the fixed blocks, and the center of the movement path of the limiting arc rod 61 coincides with the center of the mounting cylinder 431. A mounting plate 611 is fixedly connected to the limiting arc rod 61. The pressure spring 62 is mounted on the limiting arc rod 61 and is located between the mounting plate 611 and the fixed blocks. A connecting block 64 is fixedly connected to the surface of the mounting cylinder 431, with one end of the limiting arc rod 61 inserted into the connecting block 64. The rotating wheel 63 is rotatably connected to the receiving slot 421. A toggle flange 631 is fixedly connected to one side of the rotating wheel 63. A pull rope 612 is fixedly connected to the rotating wheel 63 and the other end of the limiting arc rod 61. A cover plate 422 is fixedly connected to the slot of the receiving slot 421 , and covers the receiving slot 421 . An avoidance hole is opened in the cover plate 422 at a position corresponding to the shifting flange 631 , and the shifting flange 631 is located in the avoidance hole.

[0044] When limiting the installation tube 431, rotate the toggle flange 631, the rotating wheel 63 rotates, and the two limiting arc rods 61 are driven to move synchronously through the pull rope 612, the pressure spring 62 is compressed, and the installation tube 431 is placed in the installation groove. Release the toggle flange 631, and the limiting arc rod 61 moves in the opposite direction under the action of the pressure spring 62, and is inserted into the connecting block 64, thereby limiting the freedom of the installation tube 431 and realizing the installation of the installation tube 431.

[0045] Reference Figure 8 In order to facilitate the discharge of larger particles of dirt, a drain trough 411 is opened at the position of the filter screen 433 at the water inlet end of the filter box 41, and the slot of the drain trough 411 leads to the side wall of the filter box 41. A limiting rail is vertically fixedly connected to the side wall of the filter box 41 at the positions corresponding to the two ends of the drain trough 411. The cross-section of the limiting rail is L-shaped, and the bottom end of the limiting rail is blocked. A dirt baffle 412 is slidably fitted between the two limiting rails, and the dirt baffle 412 covers the slot of the drain trough 411. When a large number of larger particles of dirt accumulate inside the filter box 41, move the dirt baffle 412 upward to open the drain trough 411, so that the larger particles of dirt can be discharged smoothly. Then release the dirt baffle 412, and the dirt baffle 412 will drop to cover the slot of the drain trough 411 again.

[0046] Reference Figure 8 A sealing member 7 is provided on the inner wall of the filter box 41 . The sealing member 7 is a rubber ring. The sealing member 7 is embedded in the inner wall of the filter box 41 . The filter screen 433 is located within the range of the sealing member 7 .

[0047] Reference Figure 2The water pump 3 is disposed on the other side of the water tank 1. The water pumping end of the water pump 3 is connected to the bottom of the water tank 1. The water discharge end of the water pump 3 is fixedly connected to a water outlet pipe 31. A water distribution pipe 311 is connected between the water outlet pipe 31 and the water inlet pipe 21. A three-way solenoid valve 312 is installed on the water distribution pipe 311. The water distribution pipe 311 is used to allow the water in the water tank 1 to re-enter the evaporator 2 for cooling.

[0048] The implementation principle of a chiller in an embodiment of the present application is: during cooling, water enters the evaporator 2 through the water inlet pipe 21 for cooling. During this process, the water is filtered through the filter screen 433 and activated carbon in turn. The cooled water is mixed with the water in the water tank 1 to cool the water in the water tank 1. If the water in the water tank 1 cannot be lowered to the specified temperature, the three-way solenoid valve 312 is opened to allow the water in the water tank 1 to re-enter the evaporator 2 through the water distribution pipe 311 for cooling until the water inside the water tank 1 is lowered to the specified dimension, and then discharged through the water outlet pipe 31 to achieve the effect of cooling the water inside the water tank 1.

[0049] When replacing the filter element 43, start the drive motor 51 to rotate the rotating gear 52, drive the lifting plate 42 to descend, the filter element 43 is separated from the filter box 41, and the new filter element 43 enters the filter box 41. Rotate the toggle flange 631, the rotating wheel 63 rotates, and drives the two limiting arc rods 61 to move synchronously to loosen the connecting block 64. The mounting cylinder 431 can be removed to replace the new filter screen 433 and the charging bag 432.

[0050] Setting the water tank 1 in a cylindrical shape is not only conducive to quickly mixing cold water with higher temperature water, but also leaves no dead corners in the water tank 1, which is conducive to the later cleaning of the water tank 1. At the same time, the evaporator 2 is set outside the water tank 1, making the evaporator 2 completely independent, which is also convenient for later maintenance. Compared with the existing technology, the maintenance convenience of the water tank 1 and the evaporator 2 is improved, the possibility of dirt remaining inside the water tank 1 is reduced, and the maintenance convenience of the chiller is improved.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A chiller, characterized in that: The utility model comprises a water tank (1), an evaporator (2) and a water pump (3), wherein the water tank (1) is cylindrical and has an opening at the top, a water supply pipe (11) is provided on the side wall of the water tank (1), the evaporator (2) is provided on one side of the water tank (1), a water inlet pipe (21) is installed at the water inlet end of the evaporator (2), the water outlet end of the evaporator (2) is connected to the bottom end of the water tank (1), a filter assembly (4) for filtering water is provided on the water inlet pipe (21), the water pump (3) is provided on the other side of the water tank (1), the water pumping end of the water pump (3) is connected to the bottom end of the water tank (1), and the water discharge end of the water pump (3) is connected to the water outlet pipe (31).

2. The water chiller according to claim 1, characterized in that: The filter assembly (4) comprises a filter box (41), a lifting plate (42) and a filter element (43). The filter box (41) is connected to one side of the water tank (1). The filter box (41) is connected to the water inlet pipe (21). The filter box (41) is vertically provided with a lifting groove. The lifting plate (42) is slidably fitted in the lifting groove. The filter box (41) is provided with a driving assembly (5) for driving the lifting plate (42) to move. A plurality of filter elements (43) are installed on the lifting plate (42). The filter elements (43) are used to filter water. A sealing element (7) for sealing water is provided in the filter box (41).

3. The water chiller according to claim 2, characterized in that: The driving assembly (5) comprises a driving motor (51), a rotating gear (52) and a connecting rack (53); the connecting rack (53) is connected to one side of the lifting plate (42); a clearance gap is provided on the filter box (41) at a position corresponding to the connecting rack (53); the rotating gear (52) is rotatably connected to the filter box (41) and is partially located in the clearance gap; the rotating gear (52) and the connecting rack (53) are engaged; the driving motor (51) is mounted on the filter box (41) and is coaxially connected to the rotating gear (52).

4. The water chiller according to claim 2, characterized in that: The filter element (43) comprises a mounting tube (431), a charging bag (432) and a filter screen (433). One end of the mounting tube (431) is open, and the other end is provided with a plurality of water-permeable holes. The lifting plate (42) is provided with a mounting groove, and a water-permeable groove is provided on the bottom wall of the mounting groove. The mounting tube (431) is located in the mounting groove. The lifting plate (42) is provided with a limiting component (6) for limiting the mounting tube (431). The charging bag (432) is provided in the mounting tube (431). The charging bag (432) is made of a water-permeable material and is filled with activated carbon. The filter screen (433) is installed at the opening of the mounting tube (431).

5. The water chiller according to claim 4, characterized in that: A gap is left between the filter net (433) and the charging bag (432), and a plurality of connecting posts (4331) are connected to the filter net (433), and the connecting posts (4331) abut against the charging bag (432).

6. The water chiller according to claim 4, characterized in that: A drain trough (411) is provided in the filter box (41) at a position corresponding to the filter screen (433), and a dirt blocking plate (412) is provided at the notch of the drain trough (411). Two limiting rails are connected to the surface of the filter box (41), and the dirt blocking plate (412) is slidably fitted on the two limiting rails, and the dirt blocking plate (412) covers the notch of the drain trough (411).

7. The water chiller according to claim 4, characterized in that: The limiting assembly (6) includes a limiting arc rod (61), a pressure spring (62), a rotating wheel (63) and a connecting block (64). A receiving groove (421) is provided on the lifting plate (42) at a position corresponding to the mounting cylinder (431). Two fixing blocks are connected to the side walls of the receiving groove (421). The limiting arc rods (61) are slidably matched with two fixing blocks. The two limiting arc rods (61) are arranged relative to each other. The center of the moving path of the limiting arc rod (61) coincides with the center of the mounting cylinder (431). The limiting arc rod (61) is connected to a mounting plate (611). The pressure spring (62) is sleeved on the limiting arc rod (61) and is located at the fixing block. Between the mounting plate (611) and the fixed block, the connecting block (64) connects the two blocks on the mounting tube (431), the connecting block (64) corresponds to the limiting arc rod (61) one by one, one end of the limiting arc rod (61) is inserted into the connecting block (64), the rotating wheel (63) is rotatably connected in the accommodating groove (421), a pull rope (612) is connected between the other end of the limiting arc rod (61) and the rotating wheel (63), a cover plate (422) is provided flush with the surface of the accommodating groove (421), the cover plate (422) covers the accommodating groove (421), and an avoidance hole is opened at the position of the cover plate (422) corresponding to the rotating wheel (63).

8. The water chiller according to claim 1, characterized in that: A water distribution pipe (311) is connected between the water outlet pipe (31) and the water inlet pipe (21), and a three-way solenoid valve (312) is provided on the water distribution pipe (311).

9. The water chiller according to claim 1, characterized in that: The inner surface of the water tank (1) is covered with hydrophilic aluminum foil.

10. The water chiller according to claim 1, characterized in that: The water tank (1) is provided with a cover (13) and a mounting assembly (8) at the top. The mounting assembly (8) comprises a limiting block (81), an ejection spring (82) and a sliding ring plate (83). The sliding ring plate (83) is provided in the cover (13). The ejection spring (82) is provided in the cover (13) and connected between the top wall of the cover (13) and the sliding ring plate (83). The limiting block (81) is connected to a plurality of blocks on the inner ring wall of the cover (13). The top of the water tank (1) is connected to an extension ring. The extension ring is provided with an avoidance channel (14) and a limiting groove (15) at a position corresponding to the limiting block (81). The opening of the limiting groove (15) faces downward. When installed, the limiting block (81) is located in the limiting groove (15).

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