Cooling device of screw machine

Abstract

The utility model discloses a cooling device of a screw machine, which relates to the technical field of cooling equipment and comprises a cooling machine body and a support frame. A water tank is fixedly connected to an inner cavity of the supporting frame, a cover plate covers the upper end of the water tank, a precipitation block is fixedly connected to the lower end of the water tank, and a filtering assembly is arranged on the side, close to the cover plate, of the first water pipe and used for filtering backflow liquid of the cooler body; the lower end of the connecting plate is fixedly connected with a water level monitoring and alarming assembly. According to the utility model, the precipitation block is matched with the water valve, so that impurities and the like in the inner cavity of the water tank can be collected and precipitated by the precipitation block, and then when water in the inner cavity of the water tank is discharged through the water valve, the impurities and the like precipitated at the lower part of the inner cavity of the precipitation block can be conveniently discharged; therefore, the filtering assembly can filter water flowing back into the inner cavity of the water tank, and the number of impurities conveyed into the inner cavity of the water tank can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment, in particular to a cooling device for a screw machine. Background Art

[0002] The screw machine cooling device is an indispensable part of the industrial refrigeration system. Its core function is to ensure that the screw compressor can maintain a stable and suitable operating temperature range during continuous and high-intensity operation. The working principle of the screw machine cooling device usually involves the recycling of cooling water. The cooling water is sent into the cooling system of the screw machine through a water pump, absorbing and taking away the heat generated by the screw machine during operation, and then cooled by the cooling device to reduce its temperature and recycle it again.

[0003] During the operation of the screw machine cooling device, the maintenance of the water tank is the top priority to ensure the efficient and stable operation of the entire system. The water tank, as the core component of the cooling system, bears the heavy responsibility of providing clean and efficient cooling water for the screw machine. However, with the long-term circulation of cooling water, impurities such as scale and rust will gradually accumulate in the water tank. These impurities will not only reduce the water quality, but also have a negative impact on the cooling effect. Once the water quality deteriorates, the cooling effect will be greatly reduced. The heat that should have been quickly taken away will be retained inside the screw machine, causing the screw machine to overheat, which will not only affect the normal operation of the screw machine, but may also damage its internal components and shorten its service life. More seriously, the presence of impurities will also have an adverse effect on the water pump. Impurities such as scale and rust may adhere to the water pump impeller, causing impeller wear, reduced efficiency, and even blockage, which will not only increase the load on the water pump and increase energy consumption, but may also cause water pump failure, thereby affecting the normal operation of the entire cooling system.

[0004] Chinese patent document CN207033754U discloses a cooling device for a screw machine, comprising a heat absorption box and a screw machine body, wherein cooling pipes located on both sides of the screw machine body are fixedly installed at the bottom of the inner cavity of the heat absorption box, and heat absorption sheets are sleeved on the surface of the cooling pipes, and the upper and lower ends of the cooling pipes are fixedly connected to the inner wall of the heat absorption box through fixing clips, and protective covers are fixedly installed on both sides of the heat absorption box, and an exhaust motor is fixedly installed on the protective cover away from the inner wall of the heat absorption box, and an exhaust fan is fixedly connected to the output end of the exhaust motor; however, the following defects still exist in the implementation process:

[0005] Although the device in the above-mentioned document is provided with a cooling pipe, a water tank and a water pump, the cooling pipe is an aluminum pipe with a fast heat absorption effect, which can absorb the heat generated inside the screw machine due to long-term operation, and the water pump strengthens the internal water circulation structure formed by the cooling pipe through the water tank, thereby further improving the heat dissipation effect of the screw machine, but the device in the above-mentioned document does not take into account long-term water circulation, which will cause the recycled water to bring some scale, rust and other impurities in the device back to the water tank, resulting in excessive water impurities in the water tank. These impurities will not only reduce the water quality, but also have a negative impact on the cooling effect. Moreover, these impurities will also have an adverse effect on the water pump. Impurities such as scale and rust may adhere to the water pump impeller, causing impeller wear, reduced efficiency, and even blockage, thereby affecting the service life of the water pump. Utility Model Content

[0006] The utility model aims to provide a screw machine cooling device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A screw machine cooling device comprises a cooling machine body and a support frame; a water tank is fixedly connected to the inner cavity of the support frame, the upper end of the water tank is covered with a cover plate, the lower end of the water tank is fixedly connected to a sedimentation block, the lower end of the sedimentation block is fixedly connected to a water valve, a water pipe 1 is fixedly connected to the upper part of one side of the water tank, the input end of the water pipe 1 is fixedly connected to the cooling machine body, a filter assembly is arranged on the side of the water pipe 1 close to the cover plate, the filter assembly is used to filter the reflux liquid of the cooling machine body, a connecting plate is fixedly connected to the lower part of the outer surface of the water tank, a water level monitoring and alarm assembly is fixedly connected to the lower end of the connecting plate, a water pump is fixedly connected to the upper end of the connecting plate, the input end of the water pump passes through the outer surface of the water tank and extends to the inner cavity of the water tank, a water pipe 2 is fixedly connected to the output end of the water pump, and the output end of the water pipe 2 is fixedly connected to the cooling machine body.

[0009] A further improvement of the technical solution of the utility model is that the sedimentation block is designed to be conical.

[0010] The above technical solution is adopted, in which the sedimentation block is designed to be conical, so that impurities transported to the inner cavity of the water tank are gathered in the inner cavity of the sedimentation block, and then these impurities are precipitated in the inner cavity of the sedimentation block. Then, by utilizing the cooperation between the sedimentation block and the water valve, when the water in the inner cavity of the water tank is discharged and replaced through the water valve, the impurities precipitated in the lower part of the inner cavity of the sedimentation block can be discharged, thereby reducing the number of these impurities in the inner cavity of the water tank.

[0011] A further improvement of the technical solution of the utility model is that: a card slot is symmetrically provided on the upper part of the outer surface of the water tank, and an observation window is provided on one side of the water tank.

[0012] The above technical solution is adopted. In this solution, a card slot is provided to facilitate the connection between the cover and the water tank. An observation window is provided to facilitate the staff to observe the water in the inner cavity of the water tank through the observation window. The staff can judge whether the water in the inner cavity of the water tank needs to be replaced according to the water quality, thereby reducing impurities in the inner cavity of the water tank.

[0013] A further improvement of the technical solution of the utility model is that: the upper end of the cover plate is symmetrically provided with indicator grooves, the middle part of the cover plate is symmetrically provided with card block assemblies, and the indicator grooves on the same side are located directly above the card block assemblies.

[0014] The above technical solution is adopted, in which an indicator groove is provided, so that the staff can intuitively judge the position of the card block assembly, facilitate the cooperation between the card block assembly and the card groove, and limit the position of the cover plate.

[0015] A further improvement of the technical solution of the utility model is that the clamping block assembly includes a shell one, a protrusion is slidably connected to the inner cavity of the shell one, a side of the inner cavity of the shell one away from the protrusion is threadedly connected to the stop block, and a side of the protrusion close to the stop block is fixedly connected to a spring.

[0016] By adopting the above technical scheme, the position of the resist block in the inner cavity of the shell can be changed through the cooperation between the shell and the resist block, and then the spring is exerted with force through the resist block, and then the protrusion is pushed to move in the inner cavity of the shell, so that the position of the cover plate can be limited by the cooperation between the protrusion and the slot, and the cover plate can be prevented from being affected by external force and being separated from the water tank, so that the upper end of the water tank cannot be closed, and then some impurities such as dust can easily enter the inner cavity of the water tank.

[0017] A further improvement of the technical solution of the utility model is that: the filter component includes an outer shell two, the outer shell two is fixedly connected to the water pipe one, and the inner shell two is communicated with the inner cavity of the water pipe one, a flange one is fixedly connected to the lower part of the outer surface of the outer shell two, a lower end of the flange is fixedly connected to a flange two by bolts, a net frame is fixedly connected to the middle part of the flange two, and the net frame is located in the inner cavity of the outer shell two.

[0018] The above technical scheme is adopted, in which water pipe one and shell two are cooperated, so that water flowing back into the inner cavity of the water tank through water pipe one will first pass through the inner cavity of shell two, and then the water transported to the inner cavity of shell two will be filtered by the mesh frame, and then the filtered water will flow back into the inner cavity of the water tank through water pipe one, so that impurities such as scale and rust in the circulating water can be filtered and intercepted by the mesh frame, thereby reducing the amount of scale and rust transported to the inner cavity of the water tank.

[0019] A further improvement of the technical solution of the utility model is that the water level monitoring and alarm component includes a controller, the upper end of the controller is fixedly connected to the lower end of the connecting plate, a water level sensor is fixedly connected to the side of the controller close to the water tank, the water level sensor penetrates the outer surface of the water tank and extends to the inner cavity of the water tank, and an alarm is fixedly connected to the lower end of the controller.

[0020] The above technical solution is adopted. In this solution, the water level in the inner cavity of the water tank can be monitored in real time through the water level sensor to prevent the water level in the inner cavity of the water tank from being too low, which will cause the water pump to be unable to extract water from the inner cavity of the water tank, thereby causing the water pump to be damaged after idling for a long time, and will affect the cooling of the device. The controller can analyze the data monitored by the water level sensor and then control the operation of the alarm. Therefore, when the water level in the inner cavity of the water tank is too low, the alarm can be controlled by the controller to operate, and then the surrounding staff can be alerted.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides a screw machine cooling device, which is provided with a cover plate on the upper end of the water tank, so that the cover plate can be used to shield the upper end of the water tank to prevent external dust and the like from entering the inner cavity of the water tank, thereby affecting the water quality in the inner cavity of the water tank. Through the cooperation of the sedimentation block and the water valve, the sedimentation block can be used to collect and precipitate impurities and the like in the inner cavity of the water tank, and then when the water in the inner cavity of the water tank is discharged through the water valve, it is convenient to discharge the impurities and the like precipitated in the lower part of the inner cavity of the sedimentation block. By providing a filter assembly, the filter assembly can be used to filter the water flowing back into the inner cavity of the water tank, thereby reducing the amount of impurities transported to the inner cavity of the water tank, and then improving the water quality in the inner cavity of the water tank, thereby improving the utilization efficiency of water resources and extending the service life of the water pump.

[0023] 2. The utility model provides a screw machine cooling device. In order to facilitate the precipitation of impurities in the inner cavity of the water tank in the inner cavity of the sedimentation block, the input end of the water pump is located at a higher position in the water tank, which can reduce or even avoid the stirring of impurities in the inner cavity of the sedimentation block when the water pump extracts water in the inner cavity of the water tank, thereby affecting the precipitation of impurities in the inner cavity of the sedimentation block. The water level in the inner cavity of the water tank is monitored in real time through a water level sensor, and then the alarm is controlled by a controller. When the water level sensor detects that the water level in the inner cavity of the water tank is too low, the controller controls the alarm to sound an alarm, thereby reminding the staff to add water to the inner cavity of the water tank, thereby avoiding idling of the water pump, causing damage to the water pump, and affecting the normal cooling of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a front view of the overall structure of the utility model;

[0026] Figure 2 This is a rear view of the overall structure of the utility model;

[0027] Figure 3 It is a partial structural schematic diagram of the utility model;

[0028] Figure 4 It is a cross-sectional schematic diagram of a water tank of the utility model;

[0029] Figure 5 It is a schematic diagram of a water tank of the utility model;

[0030] Figure 6 It is a schematic diagram of the cover plate of the utility model;

[0031] Figure 7 This is a schematic diagram of a card block assembly of the utility model;

[0032] Figure 8 It is a schematic diagram of the filter assembly of the utility model;

[0033] Fig. 9 It is a schematic diagram of a water pump of the utility model;

[0034] Fig.10 This is a schematic diagram of the water level monitoring and alarm component of the utility model;

[0035] In the figure: 1. Cooler body; 2. Support frame; 3. Water tank; 31. Card slot; 32. Observation window; 4. Cover plate; 41. Indicator slot; 42. Card block assembly; 421. Shell 1; 422. Bump; 423. Spring; 424. Stop block; 5. Water valve; 6. Filter assembly; 61. Shell 2; 62. Flange 1; 63. Flange 2; 64. Net frame; 7. Water pump; 71. Connecting plate; 72. Water level monitoring and alarm assembly; 721. Controller; 722. Water level sensor; 723. Alarm; 8. Water pipe 1; 9. Water pipe 2; 11. Sedimentation block. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the embodiments:

[0037] Example 1

[0038] like Figure 1-10As shown, the utility model provides a screw machine cooling device, including a cooling machine body 1 and a support frame 2; a water tank 3 is fixedly connected to the inner cavity of the support frame 2, the upper end of the water tank 3 is covered with a cover plate 4, the lower end of the water tank 3 is fixedly connected to a sedimentation block 11, the lower end of the sedimentation block 11 is fixedly connected to a water valve 5, a water pipe 8 is fixedly connected to the upper part of one side of the water tank 3, the input end of the water pipe 8 is fixedly connected to the cooling machine body 1, a filter assembly 6 is arranged on the side of the water pipe 8 close to the cover plate 4, the filter assembly 6 is used to filter the reflux liquid of the cooling machine body 1, a connecting plate 71 is fixedly connected to the lower part of the outer surface of the water tank 3, a water level monitoring and alarm assembly 72 is fixedly connected to the lower end of the connecting plate 71, a water pump 7 is fixedly connected to the upper end of the connecting plate 71, the input end of the water pump 7 passes through the outer surface of the water tank 3 and extends to the inner cavity of the water tank 3, the output end of the water pump 7 is fixedly connected to a water pipe 2 9, and the output end of the water pipe 2 9 is fixedly connected to the cooling machine body 1.

[0039] In this embodiment, the water tank 3 can be supported by the support frame 2, and water can be stored by the water tank 3. The upper end of the water tank 3 can be shielded by the cover plate 4 to prevent dust and the like from entering the inner cavity of the water tank 3. The water and impurities in the inner cavity of the water tank 3 can be discharged together by the water valve 5. The water returning to the inner cavity of the water tank 3 can be filtered and intercepted by the filter component 6, thereby reducing the amount of impurities transported to the inner cavity of the water tank 3. The water in the inner cavity of the water tank 3 can be transported to the inner cavity of the water pipe 29 by the water pump 7, and then transported to the cooling machine body 1. The water level in the inner cavity of the water tank 3 can be monitored in real time by the water level monitoring and alarm component 72 to prevent the water pump 7 from idling.

[0040] Example 2

[0041] like Figure 8 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the filter assembly 6 includes an outer shell 61, the outer shell 61 is fixedly connected to the water pipe 8, and the inner shell 61 is communicated with the inner cavity of the water pipe 8, a flange 62 is fixedly connected to the lower part of the outer surface of the outer shell 61, a flange 63 is fixedly connected to the lower end of the flange 62 by bolts, a mesh frame 64 is fixedly connected to the middle part of the flange 63, and the mesh frame 64 is located in the inner cavity of the outer shell 61.

[0042] In this embodiment, when it is necessary to filter the circulating water, first, through the cooperation of the cooling machine body 1 and the water pipe 1 8, the circulating water in the inner cavity of the cooling machine body 1 can be transported to the inner cavity of the water tank 3 through the water pipe 1 8. When the circulating water is transported to the inner cavity of the outer shell 2 61, the mesh frame 64 can be used to filter and intercept the water transported to the inner cavity of the outer shell 2 61. Then, the filtered water will be transported to the inner cavity of the water tank 3 through the water pipe 1 8, and then it will be extracted by the water pump 7, and then it will be transported to the cooling machine body 1 through the water pipe 2 9.

[0043] Example 3

[0044] like Figure 5 , Figure 6 , Figure 7 As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, a card slot 31 is symmetrically opened on the upper part of the outer surface of the water tank 3, an observation window 32 is opened on one side of the water tank 3, an indicator slot 41 is symmetrically opened on the upper end of the cover plate 4, a card block assembly 42 is symmetrically opened in the middle part of the cover plate 4, and the indicator slot 41 on the same side is located directly above the card block assembly 42, and the card block assembly 42 includes a shell 421, and a protrusion 422 is slidably connected to the inner cavity of the shell 421, and a stop block 424 is threadedly connected to the side of the inner cavity of the shell 421 away from the protrusion 422, and a spring 423 is fixedly connected to the side of the protrusion 422 close to the stop block 424.

[0045] In this embodiment, when it is necessary to clean the inner wall of the water tank 3, the cover plate 4 needs to be separated from the water tank 3, and then it is convenient for the staff to clean the inner wall of the water tank 3, and then the water barrier in the inner cavity of the water tank 3 is released by rotating the water valve 5, and then the cleaned water will carry the scale, rust and other impurities in the inner cavity of the water tank 3 into the inner cavity of the sedimentation block 11, and then be discharged through the water valve 5, so that the impurities in the inner cavity of the water tank 3 can be reduced, and then the inner wall of the water tank 3 can be rinsed, so that the impurities in the inner cavity of the water tank 3 can be further reduced. When the cleaning of the inner wall of the water tank 3 is completed, the water valve 5 is rotated to reset, and then the cover plate 4 needs to be separated from the water tank 3. To close, first, cover the cover 4 with the water tank 3 according to the position of the indicating groove 41, and then change the position of the block 424 in the inner cavity of the shell 421 by rotating the block 424, so that the block 424 can be used to apply a force to the spring 423 to drive the spring 423 to contract, and then the spring 423 will stretch under the elastic force of the spring 423 itself, and then push the protrusion 422 to slide in the inner cavity of the shell 421, and then push the protrusion 422 into the inner cavity of the slot 31, and then through the cooperation between the protrusion 422 and the slot 31, the position of the cover 4 can be limited to prevent the cover 4 from being affected by external force, resulting in the separation of the water tank 3 and the cover 4.

[0046] Example 4

[0047] like Figure 4 , Fig. 9 , Fig.10 As shown, on the basis of Example 3, the utility model provides a technical solution: preferably, the sedimentation block 11 is designed to be conical, and the water level monitoring and alarm component 72 includes a controller 721, the upper end of the controller 721 is fixedly connected to the lower end of the connecting plate 71, and the side of the controller 721 close to the water tank 3 is fixedly connected with a water level sensor 722, the water level sensor 722 penetrates the outer surface of the water tank 3 and extends to the inner cavity of the water tank 3, and the lower end of the controller 721 is fixedly connected with an alarm 723.

[0048] In this embodiment, water can be transported into the inner cavity of the water tank 3 through the input end on the water tank 3, and then the staff can observe the water level in the inner cavity of the water tank 3 through the observation window 32. When the device is running, the water pump 7 can extract water from the inner cavity of the water tank 3, and then transport it to the cooling machine body 1 through the water pipe 29. At the same time, some impurities transported to the inner cavity of the water tank 3 will gather in the inner cavity of the sedimentation block 11 and then precipitate. When the device is running, the water level in the inner cavity of the water tank 3 can be monitored in real time through the water level sensor 722. When the water level in the inner cavity of the water tank 3 is too low, the controller 721 will control the alarm 723 to operate, thereby reminding the staff to add water to the inner cavity of the water tank 3.

[0049] The following is a detailed description of the working principle of the screw compressor cooling device.

[0050] like Figure 1-10 As shown, when the circulating water needs to be filtered, first, through the cooperation of the cooling machine body 1 and the water pipe 1 8, the circulating water in the inner cavity of the cooling machine body 1 can be transported to the inner cavity of the water tank 3 through the water pipe 1 8. When the circulating water is transported to the inner cavity of the outer shell 2 61, the mesh frame 64 can be used to filter and intercept the water transported to the inner cavity of the outer shell 2 61. Then, the filtered water will be transported to the inner cavity of the water tank 3 through the water pipe 1 8, and then it will be extracted by the water pump 7, and then it will be transported to the cooling machine body 1 through the water pipe 2 9;

[0051] When it is necessary to clean the inner wall of the water tank 3, the cover plate 4 needs to be separated from the water tank 3, so that the staff can clean the inner wall of the water tank 3. Then, by rotating the water valve 5, the water blocking in the inner cavity of the water tank 3 is released. Then, the cleaned water will carry the scale, rust and other impurities in the inner cavity of the water tank 3 and flow into the inner cavity of the sedimentation block 11, and then be discharged through the water valve 5, so as to reduce the impurities in the inner cavity of the water tank 3. Then, by flushing the inner wall of the water tank 3, the impurities in the inner cavity of the water tank 3 can be further reduced. When the cleaning of the inner wall of the water tank 3 is completed, the water valve 5 is rotated to reset, and then the cover plate 4 needs to be covered with the water tank 3. First, the cover plate 4 is closed with the water tank 3 according to the position of the indicating groove 41, and then the position of the block 424 in the inner cavity of the shell 421 is changed by rotating the block 424, so that the block 424 can be used to apply a force to the spring 423 to drive the spring 423 to contract, and then the spring 423 will stretch under the elastic force of the spring 423, and then push the protrusion 422 to slide in the inner cavity of the shell 421, and then push the protrusion 422 into the inner cavity of the slot 31, and then the position of the cover plate 4 can be limited by the cooperation between the protrusion 422 and the slot 31, so as to prevent the cover plate 4 from being affected by external forces, resulting in the separation of the water tank 3 and the cover plate 4;

[0052] Then, water can be transported into the inner cavity of the water tank 3 through the input end on the water tank 3, and then the staff can observe the water level in the inner cavity of the water tank 3 through the observation window 32. When the device is running, the water pump 7 can extract the water in the inner cavity of the water tank 3, and then transport it to the cooling machine body 1 through the water pipe 29. At the same time, some impurities transported to the inner cavity of the water tank 3 will gather in the inner cavity of the sedimentation block 11 and then precipitate. When the device is running, the water level in the inner cavity of the water tank 3 can be monitored in real time through the water level sensor 722. When the water level in the inner cavity of the water tank 3 is too low, the controller 721 will control the alarm 723 to operate, thereby reminding the staff to add water to the inner cavity of the water tank 3.

[0053] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A screw machine cooling device, comprising a cooling machine body (1) and a support frame (2); characterized in that: The inner cavity of the support frame (2) is fixedly connected to a water tank (3), the upper end of the water tank (3) is covered with a cover plate (4), the lower end of the water tank (3) is fixedly connected to a sedimentation block (11), the lower end of the sedimentation block (11) is fixedly connected to a water valve (5), the upper part of one side of the water tank (3) is fixedly connected to a water pipe (8), the input end of the water pipe (8) is fixedly connected to the cooling machine body (1), and a filter assembly (6) is provided on the side of the water pipe (8) close to the cover plate (4), and the filter assembly (6) is used to filter the water. The cooling machine body (1) filters the refluxed liquid; a connecting plate (71) is fixedly connected to the lower part of the outer surface of the water tank (3); a water level monitoring and alarm component (72) is fixedly connected to the lower end of the connecting plate (71); a water pump (7) is fixedly connected to the upper end of the connecting plate (71); an input end of the water pump (7) passes through the outer surface of the water tank (3) and extends to the inner cavity of the water tank (3); an output end of the water pump (7) is fixedly connected to a water pipe 2 (9); and the output end of the water pipe 2 (9) is fixedly connected to the cooling machine body (1).

2. A screw machine cooling device according to claim 1, characterized in that: The sedimentation block (11) is designed to be conical.

3. A screw machine cooling device according to claim 1, characterized in that: The upper portion of the outer surface of the water tank (3) is symmetrically provided with a card slot (31), and one side of the water tank (3) is provided with an observation window (32).

4. A screw machine cooling device according to claim 1, characterized in that: The upper end of the cover plate (4) is symmetrically provided with an indicating groove (41), and the middle part of the cover plate (4) is symmetrically provided with a block assembly (42), and the indicating groove (41) on the same side is located directly above the block assembly (42).

5. A screw machine cooling device according to claim 4, characterized in that: The block assembly (42) comprises a shell (421), the inner cavity of the shell (421) is slidably connected to a protrusion (422), a side of the inner cavity of the shell (421) away from the protrusion (422) is threadedly connected to a stop block (424), and a side of the protrusion (422) close to the stop block (424) is fixedly connected to a spring (423).

6. A screw machine cooling device according to claim 1, characterized in that: The filter assembly (6) comprises a second shell (61), the second shell (61) being fixedly connected to the first water pipe (8), and the inside of the second shell (61) is communicated with the inner cavity of the first water pipe (8), a flange plate (62) being fixedly connected to the lower part of the outer surface of the second shell (61), a flange plate (63) being fixedly connected to the lower end of the flange plate (62) by bolts, a net frame (64) being fixedly connected to the middle part of the flange plate (63), and the net frame (64) being located in the inner cavity of the second shell (61).

7. A screw machine cooling device according to claim 3, characterized in that: The water level monitoring and alarm component (72) comprises a controller (721), the upper end of the controller (721) being fixedly connected to the lower end of the connecting plate (71), a water level sensor (722) being fixedly connected to a side of the controller (721) close to the water tank (3), the water level sensor (722) penetrating the outer surface of the water tank (3) and extending to the inner cavity of the water tank (3), and an alarm (723) being fixedly connected to the lower end of the controller (721).

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