Quantitative proportioning and hierarchical processing integrated equipment based on micron foaming

Abstract

The invention discloses quantitative proportioning hierarchical processing integrated equipment based on micron foaming, and relates to the technical field of critical foaming, the quantitative proportioning hierarchical processing integrated equipment comprises a gas-liquid proportioning system, a reaction kettle, a hot oil storage tank, a cooler and a heat conduction oil jacket arranged on the outer wall of the reaction kettle; a gas-liquid opening is formed in the top of the reaction kettle, and the gas-liquid proportioning system is connected with the gas-liquid opening; a heat-conducting oil inlet and a cooling oil inlet are formed in the bottom of the heat-conducting oil jacket, a heat-conducting oil outlet and a cooling oil outlet are formed in the side wall of the heat-conducting oil jacket, an oil outlet of the hot oil storage tank is communicated with the heat-conducting oil inlet, and an oil inlet of the hot oil storage tank is communicated with the heat-conducting oil outlet; the heat conduction oil, the cooling oil outlet, the cooler cooling device, the cooling oil inlet and the reaction kettle form a circulating cooling loop, the cooler is arranged to circularly cool the heat conduction oil, and compared with direct adoption of cold heat conduction oil, the cooling device is safer, leakage caused by too large temperature difference of equipment is avoided, the problem of oxidation caused by too high cold oil temperature is avoided, and the service life of the equipment is prolonged. The equipment maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of supercritical foaming, and more specifically to a quantitative proportioning and hierarchical processing integrated equipment based on micron foaming. Background Art

[0002] Microporous polymer materials have the advantages of light weight, high impact strength, good sound insulation, low dielectric constant and thermal conductivity, etc. This material is widely used in the fields of household daily necessities, footwear, packaging and construction; therefore, how to improve the performance of microporous polymer materials is a very urgent issue.

[0003] In the process of manufacturing microporous polymer materials, heat transfer oil is mainly used to control the reaction temperature and promote the reaction. By adjusting the temperature in the reactor, the reaction rate and the quality of the product are controlled to obtain the desired microporous polymer material. The direct switching of hot and cold oils causes a large temperature difference in the equipment, resulting in deformation and leakage of the heat transfer oil jacket equipment, affecting production efficiency and maintenance costs. Summary of the invention

[0004] The purpose of the present invention is: in order to solve the above technical problems, the present invention provides a quantitative proportioning and hierarchical processing integrated equipment based on micron foaming.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A quantitative proportioning hierarchical processing integrated equipment based on micron foaming, comprising a gas-liquid proportioning system, a reactor, a hot oil storage tank, a cooler and a heat transfer oil jacket arranged on the outer wall of the reactor;

[0007] The top of the reactor is provided with a gas-liquid port, and the gas-liquid proportioning system is connected to the gas-liquid port;

[0008] A thermal oil inlet and a cooling oil inlet are provided at the bottom of the thermal oil jacket, a thermal oil outlet and a cooling oil outlet are provided on the side wall of the thermal oil jacket, the oil outlet of the heat storage tank is connected with the thermal oil inlet, and the oil inlet of the heat storage tank is connected with the thermal oil outlet; the cooling oil inlet is connected with the cooling oil outlet through a pipeline, and the cooler is provided on the pipeline between the cooling oil inlet and the cooling oil outlet; the thermal oil inlet, the cooling oil inlet, the thermal oil outlet and the cooling oil outlet are all provided with a first valve.

[0009] Structural principle: the gas-liquid proportioning system provides gas and liquid for the reactor. When the reactor needs to be heated, the first valve on the cooling oil inlet and the cooling oil outlet is closed, and the thermal oil inlet and the thermal oil outlet are opened. The thermal oil in the hot oil storage tank enters the reactor through the thermal oil inlet to heat the reactor, and then returns to the reactor through the thermal oil outlet to form a circulating heating loop; when the reactor needs to be cooled, the thermal oil inlet and the thermal oil outlet are closed, and the cooling oil inlet and the cooling oil outlet are opened. The thermal oil comes out of the cooling oil outlet, is cooled by the cooler, and then returns to the reactor through the cooling oil inlet to form a circulating cooling loop. By setting a cooler to circulate and cool the thermal oil, the present invention is safer than directly using cold thermal oil, avoids leakage of equipment due to excessive temperature difference, avoids oxidation problem of cold oil due to excessive temperature, and reduces equipment maintenance costs.

[0010] The pipeline between the heat transfer oil inlet and the oil outlet of the hot oil storage tank and the pipeline between the cooling oil inlet and the cooling oil outlet are both provided with a first circulation pump to provide a power source for realizing the circulation of the heat transfer oil.

[0011] The cooler includes a cooling box, a fan installed on the top of the cooling box, and a circular heat dissipation pipe installed inside the cooling box. The air outlet of the fan is connected to the inside of the cooling box, the oil inlet of the circular heat dissipation pipe is connected to the cooling oil outlet, the oil outlet of the circular heat dissipation pipe is connected to the cooling oil inlet, and an air outlet is provided at the bottom of the cooling box. The heat transfer oil in the circular heat dissipation pipe conducts heat to the air in the cooling box, and the fan quickly blows the hot air out from the air outlet to accelerate cooling.

[0012] The outer wall of the thermal oil storage tank is equipped with an aluminum jacket electric heater, and the outer wall of the aluminum jacket electric heater is provided with an aluminum silicate insulation layer. The aluminum jacket electric heater heats the thermal oil in the thermal oil storage tank, and the aluminum silicate insulation layer plays a role of heat preservation.

[0013] A temperature sensor is provided on the inner wall of the heat transfer oil jacket for monitoring the temperature of the heat transfer oil.

[0014] The gas-liquid proportioning system includes a filter box, a mixing chamber and a mixer installed in the mixing chamber. A cleaning jacket is provided on the outer wall of the mixing chamber, and a plurality of nozzles evenly distributed in the circumferential direction are provided on the inner wall of the mixing chamber. The nozzles are connected to the cleaning jacket, and a water inlet pipe is connected to the side wall of the cleaning jacket. A water outlet pipe is connected to the bottom of the mixing chamber, and the water outlet pipe is connected to the top of the filter box. The water inlet pipe is connected to the bottom of the side wall of the filter box. A high-pressure pump is also provided on the water inlet pipe.

[0015] Structural principle of the gas-liquid proportioning system: The high-pressure pump sends the water in the filter box into the cleaning jacket through the water inlet pipe, and comes out through the nozzle to clean the mixer and the inner wall of the mixing chamber. The nozzles are distributed around the mixer to ensure thorough cleaning. There is no need to take the mixer out of the mixing chamber for separate cleaning, which saves time and effort; the sewage after cleaning returns to the filter box through the outlet pipe, and the filter box filters the sewage so that the sewage can be recycled to avoid waste.

[0016] The top of the mixing chamber is provided with a feed port, the feed port is connected to a liquid inlet pipe, the liquid inlet pipe is connected to an air inlet pipe, the liquid inlet pipe is also provided with a liquid flow meter and a liquid pressure pump, and the air inlet pipe is also provided with a gas flow meter and a gas compressor. The gas-liquid ratio can be accurately controlled by designing the liquid flow meter and the gas flow meter, and the liquid pressure pump and the gas compressor are provided to pressurize the liquid and the gas respectively to meet the standard, and the mixed gas and liquid enter the mixing chamber together through the feed port, and the gas and liquid are fully mixed by stirring of the mixer. The liquid inlet pipe is used to introduce liquid, and the air inlet pipe is used to introduce carbon dioxide.

[0017] The mixer is a high shear homogenizing mixer.

[0018] The water outlet pipe is provided with a second circulation pump to pump the sewage in the mixing chamber back into the filter box.

[0019] The filter box comprises a box body and a filter screen installed on the upper part of the box body. The filter screen filters the water coming out of the water outlet pipe.

[0020] The water outlet pipe and the water inlet pipe are both provided with a second valve.

[0021] The liquid inlet pipe and the air inlet pipe are both provided with pneumatic valves.

[0022] The bottom of the mixing chamber is provided with a discharge port, the discharge port is provided with a control valve, the gas-liquid port is connected with the discharge port through a high-pressure pipe, and the mixture in the mixing chamber enters the reaction kettle through the discharge port.

[0023] The beneficial effects of the present invention are as follows:

[0024] In the present invention, the heat transfer oil is cooled through the cooler from the cooling oil outlet and then returns to the reactor through the cooling oil inlet to form a circulating cooling loop. The heat transfer oil is circulated and cooled by setting the cooler. Compared with directly using cold heat transfer oil, the present invention is safer, avoids leakage of equipment due to excessive temperature difference, avoids oxidation problem of cold oil temperature due to excessively high temperature, and reduces equipment maintenance cost; the heat transfer oil in the return heat dissipation pipe transfers heat to the air in the cooling box, and the fan quickly blows the hot air out from the air outlet to accelerate cooling; the aluminum jacket electric heater heats and raises the temperature of the heat transfer oil in the hot oil storage tank, and the aluminum silicate insulation layer plays a role of heat preservation; the high-pressure pump sends the water in the filter box into the cleaning jacket through the water inlet pipe, and comes out through the nozzle to clean the mixer and the inner wall of the mixing chamber. The nozzles are distributed around the mixer so that the cleaning is thorough, and there is no need to take the mixer out of the mixing chamber for separate cleaning, which saves time and effort; the sewage after cleaning returns to the filter box through the outlet pipe, and the filter box filters the sewage so that the sewage is recycled to avoid waste; the gas-liquid ratio can be accurately controlled by designing a liquid flow meter and a gas flow meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 yes Figure 1 A magnified view of center A;

[0027] Figure 3 It is a schematic diagram of the structure of the cooler;

[0028] Figure 4 It is a structural schematic diagram of a reactor equipped with an aluminum jacket electric heater and an aluminum silicate insulation layer;

[0029] Figure 5 It is a schematic diagram of the internal structure of the filter box.

[0030] Figure numerals: 1, reactor; 2, hot oil storage tank; 3, cooler; 4, thermal oil jacket; 5, thermal oil inlet; 6, cooling oil inlet; 7, thermal oil outlet; 8, cooling oil outlet; 9, oil outlet of hot oil storage tank; 10, oil inlet of hot oil storage tank; 11, first valve; 12, first circulation pump; 13, cooling box; 14, fan; 15, circular heat pipe; 16, aluminum jacket electric heater; 17, aluminum silicate insulation layer; 18, temperature sensor; 19, oil inlet of circular heat pipe; 20, oil outlet of circular heat pipe; 21. Air outlet; 22. Filter box; 23. Mixing chamber; 24. Mixer; 25. Cleaning jacket; 26. Nozzle; 27. Water inlet pipe; 28. Water outlet pipe; 29. ​​High-pressure pump; 30. Feed inlet; 31. Liquid inlet pipe; 32. Air inlet pipe; 33. Liquid flow meter; 34. Liquid booster pump; 35. Gas flow meter; 36. Gas compressor; 37. Second circulation pump; 38. Box; 39. Filter; 40. Second valve; 41. Pneumatic valve; 42. Gas-liquid port; 43. Discharge port; 44. Control valve; 45. High-pressure pipe. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figures 1 to 5 As shown, this embodiment provides a quantitative proportioning hierarchical processing integrated equipment based on micron foaming, including a gas-liquid proportioning system, a reactor 1, a hot oil storage tank 2, a cooler 3, and a heat transfer oil jacket 4 arranged on the outer wall of the reactor 1;

[0035] The top of the reactor 1 is provided with a gas-liquid port 42, and the gas-liquid proportioning system is connected to the gas-liquid port 42;

[0036] A thermal oil inlet 5 and a cooling oil inlet 6 are provided at the bottom of the thermal oil jacket 4, and a thermal oil outlet 7 and a cooling oil outlet 8 are provided on the side wall of the thermal oil jacket 4. The oil outlet of the thermal oil storage tank 2 is connected with the thermal oil inlet 5, and the oil inlet of the thermal oil storage tank 2 is connected with the thermal oil outlet 7; the cooling oil inlet 6 is connected with the cooling oil outlet 8 through a pipeline, and the cooler 3 is provided on the pipeline between the cooling oil inlet 6 and the cooling oil outlet 8; the thermal oil inlet 5, the cooling oil inlet 6, the thermal oil outlet 7 and the cooling oil outlet 8 are all provided with a first valve 11.

[0037] Structural principle: the gas-liquid proportioning system provides gas and liquid for the reactor 1. When the reactor 1 needs to be heated, the first valve 11 on the cooling oil inlet 6 and the cooling oil outlet 8 is closed, and the heat transfer oil inlet 5 and the heat transfer oil outlet 7 are opened. The heat transfer oil in the hot oil storage tank 2 enters the reactor 1 through the heat transfer oil inlet 5 to heat the reactor, and then returns to the reactor 1 through the heat transfer oil outlet 7 to form a circulating heating loop; when the reactor 1 needs to be cooled, the heat transfer oil inlet 5 and the heat transfer oil outlet 7 are closed, and the cooling oil inlet 6 and the cooling oil outlet 8 are opened. The heat transfer oil comes out of the cooling oil outlet 8 and is cooled by the cooler 3, and then returns to the reactor 1 through the cooling oil inlet 6 to form a circulating cooling loop. By setting the cooler 3 to circulate and cool the heat transfer oil, compared with directly using cold heat transfer oil, the present invention is safer, avoids leakage of equipment due to excessive temperature difference, avoids oxidation problem of cold oil due to excessive temperature, and reduces equipment maintenance cost.

[0038] The pipeline between the heat transfer oil inlet 5 and the oil outlet of the hot oil storage tank 2 and the pipeline between the cooling oil inlet 6 and the cooling oil outlet 8 are both provided with a first circulation pump 12 to provide a power source for realizing the circulation of the heat transfer oil.

[0039] The cooler 3 includes a cooling box 13, a fan 14 installed on the top of the cooling box 13, and a circular heat pipe 15 installed inside the cooling box 13. The air outlet 21 of the fan 14 is connected to the inside of the cooling box 13, the oil inlet of the circular heat pipe 15 is connected to the cooling oil outlet 8, the oil outlet of the circular heat pipe 15 is connected to the cooling oil inlet 6, and the bottom of the cooling box 13 is provided with an air outlet 21. The heat transfer oil in the circular heat pipe 15 conducts heat to the air in the cooling box 13, and the fan 14 quickly blows the hot air out from the air outlet 21 to accelerate cooling.

[0040] The outer wall of the thermal oil storage tank 2 is installed with an aluminum jacket electric heater 16, and the outer wall of the aluminum jacket electric heater 16 is provided with an aluminum silicate insulation layer 17. The aluminum jacket electric heater 16 heats the thermal oil in the thermal oil storage tank 2, and the aluminum silicate insulation layer 17 plays a role in heat preservation.

[0041] A temperature sensor 18 is disposed on the inner wall of the heat transfer oil jacket 4 for monitoring the temperature of the heat transfer oil.

[0042] The gas-liquid proportioning system includes a filter box 22, a mixing chamber 23 and a mixer 24 installed in the mixing chamber 23. The outer wall of the mixing chamber 23 is provided with a cleaning jacket 25, and the inner wall of the mixing chamber 23 is provided with a plurality of nozzles 26 evenly distributed in the circumferential direction. The nozzles 26 are connected to the cleaning jacket 25. The side wall of the cleaning jacket 25 is connected to a water inlet pipe 27. The bottom of the mixing chamber 23 is connected to a water outlet pipe 28. The water outlet pipe 28 is connected to the top of the filter box 22. The water inlet pipe 27 is connected to the bottom of the side wall of the filter box 22. A high-pressure pump 29 is also provided on the water inlet pipe 27.

[0043] Structural principle of the gas-liquid proportioning system: the high-pressure pump 29 delivers the water in the filter box 22 into the cleaning jacket 25 through the water inlet pipe 27, and comes out through the nozzle 26 to clean the mixer 24 and the inner wall of the mixing chamber 23. The nozzles 26 are distributed around the mixer 24 to ensure thorough cleaning. There is no need to take the mixer 24 out of the mixing chamber 23 for separate cleaning, which saves time and effort. The cleaned sewage returns to the filter box 22 through the outlet pipe 28. The filter box 22 filters the sewage so that the sewage can be recycled to avoid waste.

[0044] The top of the mixing chamber 23 is provided with a feed port 30, the feed port 30 is connected to a liquid inlet pipe 31, the liquid inlet pipe 31 is connected to an air inlet pipe 32, the liquid inlet pipe 31 is also provided with a liquid flow meter 33 and a liquid pressure pump 34, and the air inlet pipe 32 is also provided with a gas flow meter 35 and a gas compressor 36. The liquid flow meter 33 and the gas flow meter 35 can be designed to accurately control the gas-liquid ratio, and the liquid pressure pump 34 and the gas compressor 36 are provided to pressurize the liquid and the gas respectively to meet the standard. The mixed gas and liquid enter the mixing chamber 23 together through the feed port 30, and the gas and liquid are fully mixed by stirring by the mixer 24. The liquid inlet pipe 31 is used to introduce liquid, and the air inlet pipe 32 is used to introduce carbon dioxide.

[0045] The mixer 24 is a high shear homogenizing mixer 24 .

[0046] The water outlet pipe 28 is provided with a second circulation pump 37 to pump the sewage in the mixing chamber 23 back into the filter box 22 .

[0047] The filter box 22 includes a box body 38 and a filter screen 39 installed on the upper part of the box body 38. The filter screen 39 filters the water coming out of the water outlet pipe 28.

[0048] The water outlet pipe 28 and the water inlet pipe 27 are both provided with a second valve 40 .

[0049] The liquid inlet pipe 31 and the air inlet pipe 32 are both provided with a pneumatic valve 41 .

[0050] The mixing chamber 23 has a discharge port 43 at the bottom thereof, a control valve 44 is disposed on the discharge port 43, and the gas-liquid port 42 is connected to the discharge port 43 through a high-pressure pipe 45. The mixture in the mixing chamber 23 enters the reactor 1 through the discharge port 43.

Claims

1. A quantitative proportioning hierarchical processing integrated equipment based on micron foaming, comprising a gas-liquid proportioning system, a reactor, a hot oil storage tank, a cooler and a heat transfer oil jacket arranged on the outer wall of the reactor; The top of the reactor is provided with a gas-liquid port, and the gas-liquid proportioning system is connected to the gas-liquid port; A thermal oil inlet and a cooling oil inlet are provided at the bottom of the thermal oil jacket, a thermal oil outlet and a cooling oil outlet are provided on the side wall of the thermal oil jacket, the oil outlet of the heat storage tank is connected with the thermal oil inlet, and the oil inlet of the heat storage tank is connected with the thermal oil outlet; the cooling oil inlet is connected with the cooling oil outlet through a pipeline, and the cooler is provided on the pipeline between the cooling oil inlet and the cooling oil outlet; the thermal oil inlet, the cooling oil inlet, the thermal oil outlet and the cooling oil outlet are all provided with a first valve.

2. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 1 is characterized in that: The pipeline between the heat transfer oil inlet and the oil outlet of the heat oil storage tank and the pipeline between the cooling oil inlet and the cooling oil outlet are both provided with a first circulation pump.

3. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 1 is characterized in that: The cooler includes a cooling box, a fan installed on the top of the cooling box and a circular heat dissipation pipe installed inside the cooling box. The air outlet of the fan is connected to the inside of the cooling box, the oil inlet of the circular heat dissipation pipe is connected to the cooling oil outlet, the oil outlet of the circular heat dissipation pipe is connected to the cooling oil inlet, and an air outlet is provided at the bottom of the cooling box.

4. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 1 is characterized in that: An aluminum jacket electric heater is installed on the outer wall of the hot oil storage tank, and an aluminum silicate insulation layer is provided on the outer wall of the aluminum jacket electric heater.

5. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 1 is characterized in that: The gas-liquid proportioning system includes a filter box, a mixing chamber and a mixer installed in the mixing chamber. A cleaning jacket is provided on the outer wall of the mixing chamber, and a plurality of nozzles evenly distributed in the circumferential direction are provided on the inner wall of the mixing chamber. The nozzles are connected to the cleaning jacket, and a water inlet pipe is connected to the side wall of the cleaning jacket. A water outlet pipe is connected to the bottom of the mixing chamber, and the water outlet pipe is connected to the top of the filter box. The water inlet pipe is connected to the bottom of the side wall of the filter box. A high-pressure pump is also provided on the water inlet pipe.

6. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 5 is characterized in that: A feed port is provided on the top of the mixing chamber, a liquid inlet pipe is connected to the feed port, an air inlet pipe is connected to the liquid inlet pipe, a liquid flow meter and a liquid pressure pump are also provided on the liquid inlet pipe, and a gas flow meter and a gas compressor are also provided on the air inlet pipe.

7. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 5, characterized in that: The water outlet pipe is provided with a second circulation pump.

8. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 5, characterized in that: The filter box comprises a box body and a filter screen installed on the upper part of the box body.

9. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 5, characterized in that: The water outlet pipe and the water inlet pipe are both provided with a second valve.

10. The quantitative proportioning and hierarchical processing integrated equipment based on micron foaming according to claim 5, characterized in that: A discharge port is provided at the bottom of the mixing chamber, a control valve is provided on the discharge port, and the gas-liquid port is connected with the discharge port through a high-pressure pipe.

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