Water cooling device used in plastic preparation process

Abstract

The utility model relates to the technical field of plastic preparation, and provides a water cooling device used in a plastic preparation process, which comprises a water inlet pipeline, a water distribution pipeline, a refrigerant circulation pipeline, a branch pipe, a gear box, a soft water pump, a filter, a filtered wastewater pipeline, a vacuum pump, a vacuum pump water inlet pipeline, an air inlet pipeline, a waste output pipeline and a sedimentation tank, the water inlet pipeline is connected with the water inlet end of the filter through the water distribution pipeline, the refrigerant circulation pipeline and the water distribution pipeline are arranged in parallel, the gearbox and the soft water pump are arranged on the water distribution pipeline through branch pipes, and the filtered waste water pipeline is arranged at the water inlet end of the filter and communicated with the water outlet end of the water distribution pipeline. The water outlet end of the filter is connected with the vacuum pump through the vacuum pump water inlet pipeline, the air inlet pipeline and the waste material output pipeline are arranged on the vacuum pump, and the output ends of the filtered waste water pipeline and the waste material output pipeline are connected with the settling pond.

Description

Technical Field

[0001] This utility model relates to the field of plastic preparation technology, and in particular to a water cooling device used in the plastic preparation process. Background Technology

[0002] In the plastic manufacturing process, extruders and conveying devices are required. Both extruders and conveying devices require gearboxes, which are prone to overheating during use, leading to a reduction in gear life. Therefore, refrigerant is needed to cool the gearboxes, with clean water being the most common refrigerant. In the plastic manufacturing process, soft water is also needed to cool the heated plastic. The demand for soft water is large, and the soft water pump has a heavy load, so refrigerant is also needed to cool it. Clean water is also the most common refrigerant. However, existing water cooling devices directly discharge the hot water after heat exchange, which not only wastes energy but also pollutes the environment.

[0003] As disclosed in application number CN201721074439.4, a water cooling device for plastic preparation process relates to the field of plastic preparation technology. It includes a cooling water pipeline, which is connected to several gearbox refrigerant pipes and soft water pump refrigerant pipes. The end of the cooling water pipeline is connected to the air inlet of a vacuum pump. The cooling water pipeline includes a main pipeline and several branch pipes connected to the main pipeline. Each gearbox refrigerant pipe and soft water pump refrigerant pipe is individually connected to a branch pipe, which connects the end of the cooling water pipeline to the air inlet of the vacuum pump.

[0004] However, the above-mentioned device has the following problems:

[0005] 1. The cooling water only circulates once, which does not make full use of the cooling water and leads to energy waste;

[0006] 2. Prolonged use of filters can cause impurities to clog water pipes, increasing maintenance costs. Utility Model Content

[0007] To address the aforementioned problems, this invention provides a water-cooling device for use in the plastic manufacturing process.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A water-cooling device for use in plastic manufacturing processes includes: an inlet water pipe, a distribution water pipe, a refrigerant circulation pipe, a branch pipe, a gearbox, a soft water pump, a filter, a filtered wastewater pipe, a vacuum pump, a vacuum pump inlet water pipe, an air inlet pipe, a waste discharge pipe, and a sedimentation tank. The inlet water pipe is connected to the inlet end of the filter via the distribution water pipe. The refrigerant circulation pipe is connected in parallel with the distribution water pipe. The gearbox and the soft water pump are connected to the distribution water pipe via branch pipes. The filtered wastewater pipe is located at the inlet end of the filter and is connected to the outlet end of the distribution water pipe. The outlet end of the filter is connected to the vacuum pump via the vacuum pump inlet water pipe. The air inlet pipe and the waste discharge pipe are located on the vacuum pump. The outlet ends of the filtered wastewater pipe and the waste discharge pipe are connected to the sedimentation tank.

[0010] Preferably, a first circulation pump is installed on the branch pipe.

[0011] Preferably, a first solenoid valve is provided at the water inlet end of the water inlet pipe.

[0012] Preferably, a second circulation pump and a water pipe temperature sensor are installed on the refrigerant circulation pipeline.

[0013] Preferably, the water pipe temperature sensor is located upstream of the refrigerant circulation pipe.

[0014] Preferably, a second solenoid valve is provided at both the inlet and outlet ends of the refrigerant circulation pipeline.

[0015] Preferably, a third solenoid valve is installed on the wastewater filtration pipeline.

[0016] Preferably, a fourth solenoid valve is provided on the water inlet pipe of the vacuum pump.

[0017] The advantages of this utility model are as follows: By connecting a refrigerant circulation pipeline in parallel on the water distribution pipeline, the cooling water can be fully utilized, the number of circulations can be increased, and energy waste can be reduced. By setting a wastewater pipeline in front of the filter, the backwashing capacity of the filter can be improved, thereby preventing impurities from clogging the water pipes due to prolonged use of the filter and reducing maintenance costs. By sending the used cooling water into the impeller of the vacuum pump through the vacuum pump inlet pipeline for cleaning, the energy utilization rate can be improved. By setting up water distribution pipelines and branch pipes, the flow rate of cooling water entering the gearbox and soft water pump can be guaranteed, thereby improving cooling efficiency. Attached Figure Description

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram of a sub-part of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Inlet water pipe; 2. Distribution water pipe; 3. Refrigerant circulation pipe; 4. Branch pipe; 5. Gearbox; 6. Soft water pump; 7. Filter; 8. Filtered wastewater pipe; 9. Vacuum pump; 10. Vacuum pump inlet water pipe; 11. Air inlet pipe; 12. Waste discharge pipe; 13. Sedimentation tank; 41. First circulation pump; 14. First solenoid valve; 31. Second circulation pump; 32. Water pipe temperature sensor; 33. Second solenoid valve; 81. Third solenoid valve; 101. Fourth solenoid valve. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1, combined with Figure 1 Explanation:

[0027] A water cooling device for use in the plastic preparation process includes: an inlet water pipe 1, a distribution water pipe 2, a refrigerant circulation pipe 3, a branch pipe 4, a gearbox 5, a soft water pump 6, a filter 7, a filtered wastewater pipe 8, a vacuum pump 9, a vacuum pump inlet water pipe 10, an air inlet pipe 11, a waste material output pipe 12, and a sedimentation tank 13.

[0028] The inlet pipe 1 is connected to the inlet end of the filter 7 via the distribution pipe 2, and the refrigerant circulation pipe 3 is connected in parallel with the distribution pipe 2. By connecting the refrigerant circulation pipe 3 in parallel with the distribution pipe 2, the cooling water can be fully utilized, the circulation frequency can be increased, and energy waste can be reduced.

[0029] The gearbox 5 and the soft water pump 6 are connected to the water distribution pipe 2 via the branch pipe 4. By connecting the water distribution pipe 2 and the branch pipe 4, the flow rate of cooling water into the gearbox 5 and the soft water pump 6 can be guaranteed, thereby improving the cooling efficiency.

[0030] The wastewater filter pipe 8 is installed at the inlet of the filter 7 and connected to the outlet of the water distribution pipe 2. By installing the wastewater filter pipe 8 in front of the filter 7, the backwashing ability of the filter 7 can be improved, thereby preventing impurities from clogging the water pipe due to long-term use of the filter 7 and reducing maintenance costs.

[0031] The outlet of filter 7 is connected to vacuum pump 9 through vacuum pump inlet pipe 10. The used cooling water is sent into the impeller of vacuum pump 9 through vacuum pump inlet pipe 10 for cleaning, thereby improving energy utilization.

[0032] The air inlet pipe 11 and the waste output pipe 12 are installed on the vacuum pump 9. The output ends of the filtered wastewater pipe 8 and the waste output pipe 12 are connected to the sedimentation tank 13. The air inlet pipe 11 of the vacuum pump 9 is connected to the production equipment. The vacuum pump 9 removes small molecule compounds and other moisture impurities generated during the melting process of plastic in the production equipment. The waste output pipe 12 of the vacuum pump 9 is connected to the sedimentation tank.

[0033] Example 2, based on Example 1, combined with... Figure 2 Explanation:

[0034] A first circulation pump 41 is installed on the branch pipe 4. The first circulation pump 41 is installed to improve the water circulation capacity of the branch pipe 4.

[0035] A first solenoid valve 14 is provided at the water inlet end of the water inlet pipe 1. The first solenoid valve 14 is used to control the water supply of the water inlet pipe 1.

[0036] The refrigerant circulation pipeline 3 is equipped with a second circulation pump 31 and a water pipe temperature sensor 32. By setting the second circulation pump 31, the water circulation capacity of the refrigerant circulation pipeline 3 can be improved, and the water pipe temperature sensor 32 is used to detect the temperature of the cooling water in the refrigerant circulation pipeline 3.

[0037] The water pipe temperature sensor 32 is installed upstream of the refrigerant circulation pipe 3. The water pipe temperature sensor 32 detects and provides feedback on the temperature of the cooling water used in a timely manner.

[0038] The refrigerant circulation pipeline 3 is equipped with a second solenoid valve 33 at both its inlet and outlet ends. The second solenoid valve 33 is used to control the opening and closing of the refrigerant circulation pipeline 3.

[0039] A third solenoid valve 81 is installed on the wastewater filtration pipeline 8. The third solenoid valve 81 is used to control the opening and closing of the wastewater filtration pipeline 8.

[0040] A fourth solenoid valve 101 is installed on the vacuum pump inlet pipe 10. The fourth solenoid valve 101 is used to control the opening and closing of the vacuum pump inlet pipe 10.

[0041] The working principle of this utility model is as follows: During use, the first circulation pump 41 and the second circulation pump 31 are started. The first solenoid valve 14 and the second solenoid valve 33 are opened, while the third solenoid valve 81 and the fourth solenoid valve 101 are closed. At this time, cooling water enters the gearbox 5, the soft water pump 6, and the refrigerant circulation pipe 3 to circulate and remove heat from the gearbox 5 and the soft water pump 6. When the water pipe temperature sensor 32 detects that the cooling water in the refrigerant circulation pipe 3 can no longer effectively cool the gearbox 5 and the soft water pump 6, the fourth solenoid valve 101 is opened to allow the cooling water to reach the gearbox 5 and the soft water pump 6. Water enters the impeller of vacuum pump 9 and cleans the impeller. Wastewater enters sedimentation tank 13 through waste output pipe 12. After the equipment has been used for a period of time, a certain amount of impurities accumulate in front of filter 7. At this time, the fourth solenoid valve 101 and the second solenoid valve 33 are closed, and the third solenoid valve 81 is opened to allow cooling water to clean filter 7. The impurities accumulated in front of filter 7 are carried into sedimentation tank 13 through wastewater pipe 8. This utility model has a reasonable structure, is easy to use, can reduce costs and increase efficiency, improve energy utilization, and reduce maintenance costs.

[0042] For those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model; therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A water-cooling device for use in the plastic preparation process, characterized in that, include: The system includes an inlet water pipe (1), a branch water pipe (2), a refrigerant circulation pipe (3), a branch pipe (4), a gearbox (5), a soft water pump (6), a filter (7), a filtered wastewater pipe (8), a vacuum pump (9), a vacuum pump inlet water pipe (10), an air inlet pipe (11), a waste output pipe (12), and a sedimentation tank (13). The inlet water pipe (1) is connected to the inlet end of the filter (7) through the branch water pipe (2). The refrigerant circulation pipe (3) is connected in parallel with the branch water pipe (2). The gearbox... The tank (5) and the soft water pump (6) are installed on the water distribution pipeline (2) through the branch pipe (4). The wastewater filter pipeline (8) is installed at the inlet end of the filter (7) and connected to the outlet end of the water distribution pipeline (2). The outlet end of the filter (7) is connected to the vacuum pump (9) through the vacuum pump inlet pipeline (10). The air inlet pipeline (11) and the waste output pipeline (12) are installed on the vacuum pump (9). The outlet ends of the wastewater filter pipeline (8) and the waste output pipeline (12) are connected to the sedimentation tank (13).

2. The water-cooling device for plastic preparation process according to claim 1, characterized in that, The branch pipe (4) is equipped with a first circulation pump (41).

3. The water-cooling device for plastic preparation process according to claim 1, characterized in that, The inlet end of the water inlet pipe (1) is equipped with a first solenoid valve (14).

4. A water-cooling device for use in the plastic preparation process according to claim 1, characterized in that, The refrigerant circulation pipeline (3) is equipped with a second circulation pump (31) and a water pipe temperature sensor (32).

5. A water-cooling device for plastic preparation process according to claim 1, characterized in that, The water pipe temperature sensor (32) is located upstream of the refrigerant circulation pipe (3).

6. A water-cooling device for plastic preparation process according to claim 1, characterized in that, The refrigerant circulation pipeline (3) is equipped with a second solenoid valve (33) at both the inlet and outlet ends.

7. A water-cooling device for use in the plastic preparation process according to claim 1, characterized in that, A third solenoid valve (81) is installed on the wastewater filter pipeline (8).

8. A water-cooling device for use in the plastic preparation process according to claim 1, characterized in that, A fourth solenoid valve (101) is installed on the vacuum pump inlet pipe (10).

Images