Paraffin oil cooling circulation equipment

Abstract

The utility model relates to the technical field of paraffin oil cooling of pill dropping equipment, and discloses paraffin oil cooling circulation equipment which comprises a paraffin oil box, a cooling tank, a cooling machine and a circulating pump, the paraffin oil tank is provided with a first oil outlet pipe, a first oil inlet pipe, a second oil outlet pipe and a second oil inlet pipe; the first oil outlet pipe and the first oil inlet pipe are respectively configured to be communicated with two ends of a cooling pipe in the pill dropping machine; a cooling pipeline is arranged in the cooling tank, the bottom of the cooling tank is provided with an oil inlet end and an oil outlet end which are communicated with the two ends of the cooling pipeline respectively, the oil inlet end is communicated with the second oil outlet pipe through a pipeline, and the oil outlet end is communicated with the second oil inlet pipe through a pipeline; the input end and the output end of the cooling machine are both communicated with the cooling tank; and the circulating pump is arranged on a pipeline between the second oil outlet pipe and the oil inlet end of the cooling tank. The paraffin oil cooling circulation equipment provided by the utility model can solve the problem of how to improve the heat dissipation efficiency of the paraffin oil.

Description

Technical Field

[0001] This utility model relates to the field of paraffin oil cooling technology for pelleting equipment, and specifically to a paraffin oil cooling circulation device. Background Technology

[0002] In the capsule forming process of pelleting equipment, paraffin oil, as a highly efficient cooling medium, can rapidly absorb the heat generated during capsule forming due to its heat absorption properties, thereby helping the capsule to cool and solidify quickly. However, this process is accompanied by a significant increase in the temperature of the paraffin oil. If this heat cannot be dissipated in a timely and effective manner, the cooling and solidification effect of the paraffin oil will be greatly reduced, thus adversely affecting the forming effect and quality of the capsule.

[0003] Currently, the paraffin oil used in pelletizing equipment generally employs traditional heat dissipation methods, such as natural cooling or simple air-cooling systems. While these methods can meet basic heat dissipation requirements to some extent, they all suffer from low heat dissipation efficiency. Specifically, natural cooling relies mainly on ambient temperature and air convection for heat dissipation, resulting in a slow cooling rate that cannot meet the demands of high-efficiency production. Simple air-cooling systems, although improving heat dissipation efficiency by accelerating airflow with fans, are still limited in their effectiveness due to limitations in fan power and heat dissipation area.

[0004] Given the limitations of existing technology, innovating the paraffin oil cooling technology in pelletizing equipment to ensure the cooling and setting effect of paraffin oil has become an urgent problem to be solved. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides a paraffin oil cooling circulation device, which can at least solve the technical problem of how to improve the heat dissipation efficiency of paraffin oil.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a paraffin oil cooling circulation device, comprising:

[0009] The paraffin oil tank is used to store paraffin oil and is equipped with a first oil outlet pipe, a first oil inlet pipe, a second oil outlet pipe, and a second oil inlet pipe. The first oil outlet pipe and the first oil inlet pipe are respectively configured to connect to both ends of the cooling pipe inside the pellet mill.

[0010] The cooling tank has cooling pipes inside. The bottom of the cooling tank has an oil inlet and an oil outlet that are connected to both ends of the cooling pipes, respectively. The oil inlet is connected to a second oil outlet pipe through a pipeline, and the oil outlet is connected to a second oil inlet pipe through a pipeline.

[0011] The cooler has both its input and output ends connected to the cooling tank. The cooler is configured to circulate coolant into the cooling tank, which flows around or in contact with the outside of the cooling pipes to cool the paraffin oil in the cooling pipes.

[0012] The circulating pump is located on the pipeline between the second oil outlet pipe and the oil inlet end of the cooling tank. The circulating pump is used to extract paraffin oil from the paraffin oil tank and pump the paraffin oil into the cooling pipeline.

[0013] Further configuration: the aforementioned first oil outlet pipe is connected to at least two oil outlet branch pipes, and the first oil inlet pipe is connected to at least two oil inlet branch pipes. The oil outlet branch pipes and oil inlet branch pipes are respectively connected to both ends of the cooling pipe. The number of oil outlet branch pipes, oil inlet branch pipes and the number of drop shot machines are the same and correspond one-to-one.

[0014] Furthermore, the aforementioned paraffin oil cooling circulation equipment also includes at least two paraffin distribution boxes, which are located in the middle of the two drop shot machines. The output end of the first oil outlet pipe is connected to the at least two paraffin distribution boxes via pipelines, and the paraffin distribution boxes are connected to the two oil outlet branch pipes via pipelines.

[0015] Furthermore, a first regulating valve is installed on both the aforementioned oil outlet branch pipe and oil inlet branch pipe, a second regulating valve is installed on both the second oil outlet pipe and the second oil inlet pipe, and a third regulating valve is installed on both the oil inlet end and the oil outlet end of the cooling tank. The first regulating valve, the second regulating valve and the third regulating valve are all used to regulate the flow rate of paraffin oil.

[0016] Furthermore, the aforementioned paraffin oil tank is equipped with a temperature and liquid level monitoring device, which is used to monitor the temperature and liquid level of the paraffin oil in the tank.

[0017] Furthermore, the aforementioned cooling pipes are S-shaped or spiral-shaped, and the material of the cooling pipes is a material with high thermal conductivity.

[0018] Furthermore, the aforementioned cooling tank is also equipped with an inlet end and an outlet end. The inlet end is used to connect to the output end of the cooler through a pipe, and the outlet end is used to connect to the input end of the cooler through a pipe.

[0019] The inlet end is higher than the outlet end, and both the inlet and outlet ends are equipped with a fourth regulating valve, which is used to control the flow rate of coolant flowing into or out of the cooling tank; both the input and output ends of the cooler are equipped with a fifth regulating valve, which is used to control the flow rate of coolant flowing into or out of the cooler.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the paraffin oil cooling circulation device provided by this utility model has the following beneficial effects:

[0022] When the paraffin oil cooling circulation device provided by this utility model is in use, the paraffin oil tank supplies the paraffin oil required for cooling to the cooling pipe inside the pellet dropping machine through the first oil outlet pipe. After the paraffin oil flows out of the pellet dropping machine, it flows back to the paraffin oil tank through the first oil inlet pipe. In this way, the paraffin oil circulates continuously to help the capsules inside the pellet dropping machine cool down quickly and solidify. At the same time, the circulation pump starts and draws paraffin oil from the paraffin oil tank through the second oil outlet pipe, and pumps the paraffin oil into the cooling pipe of the cooling tank through the oil inlet end. The paraffin oil flows along the cooling pipe toward the oil outlet end. At the same time, the cooler starts and circulates coolant into the cooling tank. The coolant circulates in the cooling chamber and cools the paraffin oil flowing in the cooling pipe through heat exchange. The cooled paraffin oil flows out of the cooling tank through the oil outlet end and then flows back to the paraffin oil tank through the second oil inlet pipe. In this way, the paraffin oil in the paraffin oil tank is continuously circulated and cooled so that the temperature of the paraffin oil in the paraffin oil tank is always maintained within the temperature range required for cooling. It can be seen that the paraffin oil cooling circulation equipment, through the cooperation of cooling tank, cooler and circulation pump, can circulate and cool paraffin oil, replacing natural cooling or simple air cooling system and other cooling methods, effectively improving the heat dissipation efficiency of paraffin oil, thereby ensuring the cooling and shaping effect of paraffin oil. Attached Figure Description

[0023] Figure 1 This is a perspective view of the paraffin oil cooling circulation equipment in the embodiment;

[0024] Figure 2 This is a schematic diagram of the paraffin oil tank, cooling tank, circulating pump, and shot-dropping machine in the embodiment.

[0025] Icon labels:

[0026] 1. Paraffin oil tank; 11. First oil outlet pipe; 12. First oil inlet pipe; 13. Second oil outlet pipe; 14. Second oil inlet pipe; 15. Oil outlet branch pipe; 16. Oil inlet branch pipe; 17. First regulating valve; 18. Second regulating valve;

[0027] 2. Cooling tank; 21. Oil inlet; 22. Oil outlet; 23. Third regulating valve; 24. Liquid inlet; 25. Liquid outlet; 26. Fourth regulating valve;

[0028] 3. Cooler; 31. Fifth regulating valve;

[0029] 4. Circulating pump; 5. Drop shot machine; 6. Paraffin wax separator; 7. Control device; 8. Temperature and liquid level monitoring device. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This invention provides a paraffin oil cooling circulation device to address the problem of how to improve the heat dissipation efficiency of paraffin oil.

[0032] See Figure 1 and Figure 2 As shown, Figure 1 This is a perspective view of the paraffin oil cooling circulation equipment in the embodiment. Figure 2 The diagram shows the structure of the paraffin oil tank, cooling tank, circulating pump, and pelletizing machine in the embodiment. The paraffin oil cooling and circulating equipment includes a paraffin oil tank 1, a cooling tank 2, a cooler 3, and a circulating pump 4.

[0033] The paraffin oil tank 1 is used to store paraffin oil, and the paraffin oil tank 1 is connected to a first oil outlet pipe 11, a first oil inlet pipe 12, a second oil outlet pipe 13, and a second oil inlet pipe 14. The first oil outlet pipe 11 and the first oil inlet pipe 12 are respectively configured to connect to both ends of the cooling pipe (not shown in the figure) inside the pellet mill 5, so as to circulate the paraffin oil required for cooling to the cooling pipe.

[0034] The cooling tank 2 has internal cooling pipes (not shown in the figure). The bottom of the cooling tank 2 has an oil inlet 21 and an oil outlet 22, which are respectively connected to the two ends of the cooling pipes. The oil inlet 21 is also connected to the second oil outlet pipe 13 through a pipe, and the oil outlet 22 is also connected to the second oil inlet pipe 14 through a pipe.

[0035] The input and output ends of the cooler 3 are both connected to the cooling tank 2. The cooler 3 is configured to circulate and deliver coolant into the cooling tank 2. The coolant flows around or in contact with the outside of the cooling pipes in the cooling tank 2 to absorb and remove heat from the paraffin oil through heat exchange, thereby effectively cooling the paraffin oil flowing in the cooling pipes.

[0036] The circulating pump 4 is connected to the pipeline between the second oil outlet pipe 13 and the oil inlet end 21 of the cooling tank 2. The circulating pump 4 is used to extract paraffin oil from the paraffin oil tank 1 and pump the paraffin oil into the cooling pipeline for cooling.

[0037] When the paraffin oil cooling circulation equipment of the above technical solution is used, the paraffin oil tank 1 supplies the paraffin oil required for cooling to the cooling pipe in the pellet mill 5 through the first oil outlet pipe 11. After the paraffin oil flows out of the pellet mill 5, it flows back to the paraffin oil tank 1 through the first oil inlet pipe 12. In this way, the paraffin oil circulates continuously to help the capsules in the pellet mill 5 cool down quickly and solidify into shape. Simultaneously, the circulation pump 4 starts, drawing paraffin oil from the paraffin oil tank 1 through the second oil outlet pipe 13 and pumping it into the cooling pipe of the cooling tank 2 through the oil inlet 21. The paraffin oil flows along the cooling pipe towards the oil outlet 22. At the same time, the cooler 3 starts, circulating coolant into the cooling tank 2. The coolant circulates within the cooling chamber, cooling the paraffin oil flowing in the cooling pipe through heat exchange. The cooled paraffin oil flows out of the cooling tank 2 through the oil outlet 22 and then flows back to the paraffin oil tank 1 through the second oil inlet pipe 14. This continuous circulation cools the paraffin oil in the paraffin oil tank 1, ensuring that the temperature of the paraffin oil in the tank 1 is always maintained within the required cooling range. It can be seen that this paraffin oil cooling circulation equipment, through the cooperation of the cooling tank 2, cooler 3, and circulation pump 4, can circulate and cool paraffin oil, replacing natural cooling or simple air cooling systems, effectively improving the heat dissipation efficiency of the paraffin oil and thus ensuring the cooling and setting effect of the paraffin oil.

[0038] The cooling tank 2 has a cooling chamber (not shown in the figure) inside. The cooling pipe is located inside the cooling chamber but is not connected to the cooling chamber to prevent the coolant in the cooling chamber from flowing into the cooling pipe and mixing into the paraffin oil.

[0039] The aforementioned cooler 3 can use an existing water-cooled machine, and water cooling is more environmentally friendly and energy-efficient.

[0040] See Figure 2 As shown, in one embodiment of the first oil outlet pipe 11 and the first oil inlet pipe 12, the first oil outlet pipe 11 is connected to at least two oil outlet branch pipes 15, and the first oil inlet pipe 12 is connected to at least two oil inlet branch pipes 16. The oil outlet branch pipes 15 and the oil inlet branch pipes 16 are respectively connected to both ends of the cooling pipe. The number of oil outlet branch pipes 15 and the oil inlet branch pipes 16 is the same as that of the drop pellet machine 5 and they correspond one-to-one. In this way, one paraffin oil tank 1 can simultaneously circulate and deliver the paraffin oil required for cooling to at least two cooling pipes through at least two oil outlet branch pipes 15 and oil inlet branch pipes 16, thereby realizing the simultaneous cooling and shaping of capsules in multiple drop pellet machines 5, which greatly improves the production efficiency of capsules. In this cooling process, no matter how many cooling pipes the paraffin oil tank 1 delivers paraffin oil to at least one cooling tank 2, a cooling machine 3, and a circulating pump 4 are needed to cool and dissipate heat from the paraffin oil, which greatly saves equipment costs.

[0041] The number of pellet mills 5 that can be cooled simultaneously by one paraffin oil tank 1 depends on the amount of paraffin oil in the paraffin oil tank 1. Therefore, if the amount of paraffin oil required for all pellet mills 5 to be used at the same time exceeds the amount of paraffin oil that the paraffin oil tank 1 can supply, an additional set of paraffin oil cooling and circulation equipment needs to be set up to avoid affecting the normal use of the pellet mills 5.

[0042] See Figure 2 As shown, based on the above embodiment, the paraffin oil cooling circulation equipment further includes at least two paraffin oil distribution tanks 6, which are located in the middle of the two drop shot machines 5. The output end of the first oil outlet pipe 11 is connected to the at least two paraffin oil distribution tanks 6 through a pipeline, and the paraffin oil distribution tanks 6 are connected to two oil outlet branch pipes 15 through a pipeline. In this way, the paraffin oil tank 1 first transports paraffin oil to each paraffin oil distribution tank 6 through the first oil outlet pipe 11, and then supplies the paraffin oil required for cooling to the cooling pipes in the corresponding two drop shot machines 5 through the paraffin oil distribution tanks 6. Compared with the paraffin oil tank 1 directly supplying paraffin oil to the cooling pipes in multiple drop shot machines 5, this can make the distance of paraffin oil entering each cooling pipe the same or approximately the same, improve the uniformity of paraffin oil entering each cooling pipe, and thus improve the product consistency of each drop shot machine 5.

[0043] See Figure 2 As shown, based on the aforementioned oil outlet branch pipe 15 and oil inlet branch pipe 16, a first regulating valve 17 is installed on both oil outlet branch pipe 15 and oil inlet branch pipe 16. A second regulating valve 18 is installed on both the second oil outlet pipe 13 and the second oil inlet pipe 14. A third regulating valve 23 is installed on both the oil inlet end 21 and the oil outlet end 22 of the cooling tank 2. The first regulating valve 17, the second regulating valve 18, and the third regulating valve 23 are all used to regulate the flow rate of paraffin oil. Specifically, the first regulating valve 17 is used to regulate the flow rate of paraffin oil flowing into the cooling pipe from the oil outlet branch pipe 15 or flowing out of the cooling pipe from the oil inlet branch pipe 16; the second regulating valve 18 is used to regulate the flow rate of paraffin oil flowing into the paraffin oil tank 1 from the second oil outlet pipe 13 or the second oil inlet pipe 14; and the third regulating valve 23 is used to regulate the flow rate of paraffin oil flowing into or out of the cooling pipes. Thus, the heat dissipation efficiency of paraffin oil can be precisely controlled through the first regulating valve 17, the second regulating valve 18 and the third regulating valve 23, further ensuring the cooling and setting effect of paraffin oil.

[0044] See Figure 1 As shown, based on the above embodiments, the paraffin oil cooling circulation equipment may further include a control device 7. The control device 7 is electrically connected to the cooler 3, the circulation pump 4, the first regulating valve 17, the second regulating valve 18 and the third regulating valve 23. It can automatically control the entire circulation process of paraffin oil and coolant, greatly saving manpower and avoiding the impact of human factors on the cooling and shaping effect of paraffin oil, thereby adversely affecting the forming effect and quality of capsules.

[0045] Control device 7 can use existing control equipment such as PLC.

[0046] See Figure 2 As shown, based on any of the above embodiments, the paraffin oil tank 1 is equipped with a temperature and level monitoring device 8, which is used to monitor the temperature and level of the paraffin oil in the paraffin oil tank 1. Thus, the temperature and level monitoring device 8 can monitor the temperature and level of the paraffin oil in the paraffin oil tank 1 in real time, so as to adjust the temperature and circulation speed of the paraffin oil in a timely manner. When necessary, it can also promptly alert personnel to ensure that the paraffin oil is circulated and used under safe and suitable conditions.

[0047] The aforementioned temperature monitoring device can be composed of existing temperature sensors and liquid level sensors. Furthermore, the temperature and liquid level monitoring device 8 can be electrically connected to the aforementioned control device 7. Thus, the control device 7 can, based on the monitored temperature and liquid level information, control multiple components such as the cooler 3, circulating pump 4, first regulating valve 17, second regulating valve 18, and third regulating valve 23 to work together in a timely manner, adjusting the temperature and circulation speed of the paraffin oil to ensure that the paraffin oil is always maintained within a suitable cooling temperature range.

[0048] Based on the above embodiment, a temperature sensor (not shown in the figure) is installed inside the cooling pipe to monitor the temperature of the paraffin oil inside the cooling pipe. Both the temperature sensor and the cooler 3 can be electrically connected to the control device 7. In this way, the control device 7 can automatically adjust the working state of the cooler 3 according to the cooling requirements of the paraffin oil and the monitored temperature of the paraffin oil, so as to adjust the circulation rate and temperature of the coolant, thereby achieving precise control of the temperature of the paraffin oil.

[0049] Based on the above embodiments, the circulating pump 4 can be a variable frequency pump. In this way, the circulating pump 4 can automatically adjust its speed according to the cooling requirements of the paraffin oil and the temperature monitoring results in the cooling pipe, thereby realizing dynamic adjustment of the circulating flow rate and cooling efficiency of the paraffin oil.

[0050] Based on any of the above embodiments, the cooling pipes are S-shaped or spiral-shaped, and the material of the cooling pipes is a material with high thermal conductivity. In this way, the S-shaped or spiral shape can increase the heat exchange area of ​​the paraffin oil during the cooling process. This design of increasing the heat exchange area and the high thermal conductivity material can improve the heat dissipation effect, thereby further improving the heat dissipation efficiency of the paraffin oil.

[0051] In addition to S-shaped or spiral-shaped cooling pipes, other designs that increase the heat exchange area can also be used, as long as they can increase the heat exchange area of ​​the paraffin oil during the cooling process.

[0052] An insulation layer (not shown in the figure) can be installed on the outside of the aforementioned cooling tank 2 to reduce heat loss and maintain the coolant at a low temperature. It should be noted that both the high thermal conductivity material and the insulation layer can be made from existing materials, but their chemical inertness to the coolant and paraffin oil should be considered to avoid any possible contamination or corrosion.

[0053] See Figure 2 As shown, based on any of the above embodiments, the cooling tank 2 also has an inlet end 24 and an outlet end 25. The inlet end 24 is used to connect to the output end of the cooler 3 through a pipe, and the outlet end 25 is used to connect to the input end of the cooler 3 through a pipe. The inlet end 24 is higher than the outlet end 25, and both the inlet end 24 and the outlet end 25 are equipped with a fourth regulating valve 26, which is used to control the flow rate of coolant flowing into or out of the cooling tank 2. A fifth regulating valve 31 is installed on both the input and output ends of the cooler 3, which is used to control the flow rate of coolant flowing into or out of the cooler 3. Thus, the inlet end 24 of the cooling tank 2 is higher than the outlet end 25, and the coolant can be driven by gravity to automatically flow from the inlet end 24 to the outlet end 25, which greatly saves energy. In addition, the fourth regulating valve 26 and the fifth regulating valve 31 work together to regulate the flow rate of the coolant, which can conveniently control the entire circulation process of the coolant, thereby further controlling the cooling rate and temperature stability of the paraffin oil.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paraffin oil cooling and circulation device, characterized in that, include: A paraffin oil tank is used to store paraffin oil and is provided with a first oil outlet pipe, a first oil inlet pipe, a second oil outlet pipe, and a second oil inlet pipe. The first oil outlet pipe and the first oil inlet pipe are respectively configured to be connected to both ends of a cooling pipe inside the pellet mill. A cooling tank, wherein a cooling pipe is provided inside the cooling tank, and an oil inlet and an oil outlet are respectively connected to the two ends of the cooling pipe at the bottom of the cooling tank. The oil inlet is connected to the second oil outlet pipe through a pipe, and the oil outlet is connected to the second oil inlet pipe through a pipe. A cooler, the input and output of which are connected to the cooling tank, is configured to circulate coolant into the cooling tank, the coolant flowing around or in contact with the outside of the cooling pipes within the cooling tank to cool the paraffin oil in the cooling pipes; A circulation pump is installed on the pipeline between the second oil outlet pipe and the oil inlet end of the cooling tank. The circulation pump is used to draw paraffin oil from the paraffin oil tank and pump the paraffin oil into the cooling pipeline.

2. The paraffin oil cooling circulation equipment according to claim 1, characterized in that, The first oil outlet pipe is connected to at least two oil outlet branch pipes, and the first oil inlet pipe is connected to at least two oil inlet branch pipes. The oil outlet branch pipes and the oil inlet branch pipes are respectively connected to both ends of the cooling pipe. The number of oil outlet branch pipes, oil inlet branch pipes and the number of drop shot machines are the same and correspond one-to-one.

3. The paraffin oil cooling circulation equipment according to claim 2, characterized in that, The paraffin oil cooling circulation equipment also includes at least two paraffin distribution boxes, which are located in the middle of the two drop shot machines. The output end of the first oil outlet pipe is connected to the at least two paraffin distribution boxes through a pipeline, and the paraffin distribution boxes are connected to the two oil outlet branch pipes through a pipeline.

4. The paraffin oil cooling circulation equipment according to claim 2 or 3, characterized in that, A first regulating valve is provided on both the oil outlet branch pipe and the oil inlet branch pipe, a second regulating valve is provided on both the second oil outlet pipe and the second oil inlet pipe, and a third regulating valve is provided on both the oil inlet end and the oil outlet end of the cooling tank. The first regulating valve, the second regulating valve and the third regulating valve are all used to regulate the flow rate of the paraffin oil.

5. The paraffin oil cooling circulation device according to any one of claims 1-3, characterized in that, The paraffin oil tank is equipped with a temperature and liquid level monitoring device, which is used to monitor the temperature and liquid level of the paraffin oil in the tank.

6. The paraffin oil cooling circulation device according to any one of claims 1-3, characterized in that, The cooling pipe is S-shaped or spiral-shaped, and the material of the cooling pipe is a material with high thermal conductivity.

7. The paraffin oil cooling circulation device according to any one of claims 1-3, characterized in that, The cooling tank is also provided with an inlet and an outlet. The inlet is used to connect to the output end of the cooler through a pipe, and the outlet is used to connect to the input end of the cooler through a pipe. The inlet end is higher than the outlet end, and a fourth regulating valve is provided on both the inlet and outlet ends. The fourth regulating valve is used to control the flow rate of coolant flowing into or out of the cooling tank. A fifth regulating valve is provided on both the input and output ends of the cooling machine. The fifth regulating valve is used to control the flow rate of coolant flowing into or out of the cooling machine.

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