Large-size ultrasonic-assisted high-pressure foaming reaction kettle
By designing a large-size ultrasonic-assisted high-pressure foaming reactor, which uses an upper and lower vessel body to form a reaction chamber, a zigzag cooling pipe, and ultrasonic ceramic plates, the problems of low preparation efficiency and uneven product in traditional reactors are solved, and the efficient preparation of microporous foam materials with regular shape and uniform density is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-27
AI Technical Summary
Existing high-pressure foaming reactors are small in size, have low production efficiency, and produce foam materials with irregular shapes and uneven density, which affects product quality.
The design incorporates a large-size ultrasonic-assisted high-pressure foaming reactor, which consists of upper and lower vessel bodies forming a reaction chamber. Combined with a zigzag cooling pipe and ultrasonic ceramic plates, it achieves uniform cooling and ultrasonic foaming. The reactor is equipped with a temperature sensor and a temperature control system, and the cooling pipes are fabricated using 3D printing technology.
Uniform cooling and efficient foaming of large-size reaction chambers were achieved, producing microporous foam materials with regular shapes and uniform density, ensuring product quality. Temperature was also controlled by a temperature control system to improve preparation efficiency.
Smart Images
Figure CN224040861U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of high-pressure foaming reactors, specifically relating to a large-size ultrasonic-assisted high-pressure foaming reactor. Background Technology
[0002] With the development of industries such as chemical and pharmaceutical, the demand for high-pressure foaming reactors has been increasing year by year. In particular, the rapid development of new materials, new energy and biomedicine has driven the growth of the market demand for high-pressure foaming reactors. High-pressure foaming reactors are devices that apply high pressure and high temperature in a closed container to make raw materials expand rapidly to form foam materials. High-pressure foaming reactors are widely used in chemical, materials, pharmaceutical, and energy fields. They can be used to prepare various materials, catalysts, polymer materials, etc., and can also be used in the synthesis of various drugs, biomass conversion and catalysis.
[0003] However, because high-pressure foaming reactors need to adapt to high pressure and high temperature conditions, and in order to ensure good cooling uniformity and cooling rate, many reactors on the market are small in size, resulting in low production efficiency and seriously affecting the production capacity of high-pressure foaming reactors. At the same time, most traditional high-pressure foaming reactors tend to produce foam materials with irregular shapes and uneven density, which will affect the quality of the products produced by the reactor. Utility Model Content
[0004] To address the aforementioned issues, a large-size ultrasonic-assisted high-pressure foaming reactor capable of uniform cooling and ensuring product quality is provided.
[0005] To achieve the above objectives, this utility model is realized through the following technical solution:
[0006] A large-size ultrasonic-assisted high-pressure foaming reactor includes an upper vessel and a lower vessel connected to each other. The bottom center of the upper vessel has an upper cylindrical cavity, and the top center of the lower vessel has a lower cylindrical cavity. The upper and lower cylindrical cavities are connected to form a reaction chamber. Cooling pipes that fit with the upper cylindrical cavity are symmetrically arranged in the upper vessel, and ultrasonic ceramic plates are placed between the cooling pipes and the upper cylindrical cavity. Fluid pipes that fit with the lower cylindrical cavity are symmetrically arranged in the lower vessel, and the fluid pipes are connected to the lower cylindrical cavity. Ultrasonic ceramic plates are placed between the fluid pipes and the lower cylindrical cavity.
[0007] Preferably, the cooling pipes and fluid pipes are Z-shaped cooling pipes; the ultrasonic ceramic sheet is a piezoelectric ceramic sheet.
[0008] Preferably, heating rods are symmetrically arranged on the sides of the upper and lower vessels.
[0009] Preferably, the upper kettle body is fixedly connected with the lower kettle body through bolts.
[0010] Preferably, temperature sensors are arranged in the upper kettle body and the lower kettle body and matched with the upper cylindrical cavity and the lower cylindrical cavity respectively, and the temperature sensors are connected with a temperature control box.
[0011] Compared with the prior art, the utility model has the beneficial effects as follows:
[0012] 1. The utility model discloses a kettle body is formed by upper and lower kettle bodies, and a large-size reaction cavity is formed through the upper and lower cylindrical cavities in the upper and lower kettle bodies, the uniform cooling of the upper and lower kettle bodies can be realized through the cooling pipeline in the shape of Chinese character "Z", the ultrasonic ceramic sheet in the upper and lower kettle bodies can realize the ultrasonic foaming of the supercritical fluid in the reaction cavity, and the microcellular foam material with regular shape and uniform density is formed conveniently, the microcellular foam material with high cell density, adjustable cell size and uniform cell is prepared conveniently, the good uniformity and cooling rate of the large-size reaction cavity can be ensured, and the product quality prepared by the large-size reaction kettle is ensured, the temperature control of the upper and lower kettle bodies can be realized through the temperature control box, the temperature sensor and the heating rod.
[0013] 2. The utility model discloses a kettle body mold with large cavity size is designed on the basis of the traditional intermittent foaming reaction kettle, and the ultrasonic ceramic sheet is introduced to further control the action of the supercritical fluid in the foaming process, so as to provide a kind of process equipment for preparing high-performance foam plastic products.
[0014] 3. The utility model discloses a kettle body mold with large cavity size is designed on the basis of the traditional intermittent foaming reaction kettle, and the ultrasonic ceramic sheet is introduced to further control the action of the supercritical fluid in the foaming process, so as to provide a kind of process equipment for preparing high-performance foam plastic products. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the cross section schematic view of the utility model in embodiment 1;
[0016] Figure 2 It is the cross section schematic view of the utility model in embodiment 1;
[0017] Figure 3 It is the structure schematic view of the utility model in embodiment 1;
[0018] Figure 4 It is the simulation analog schematic view of the utility model in embodiment 1.
[0019] In the drawing, cooling pipeline 1, bolt 2, upper kettle body 3, lower kettle body 4, reaction cavity 5, ultrasonic ceramic sheet 6, fluid pipeline 7, temperature sensor 8, temperature control box 9, electric heating rod 10, line hole 11. DETAILED DESCRIPTION
[0020] The present invention will be further described in detail below through specific embodiments, but this does not limit the scope of the present invention.
[0021] Example 1
[0022] Large-size ultrasonic-assisted high-pressure foaming reactor, its structure is as follows: Figures 1-3 As shown, the reactor includes an upper vessel 3 and a lower vessel 4 connected to each other. The bottom surface of the upper vessel 3 has an upper cylindrical cavity at its center, and the top surface of the lower vessel 4 has a lower cylindrical cavity at its center. The upper cylindrical cavity and the lower cylindrical cavity are connected to form a reaction chamber 5. Cooling pipes 1 are symmetrically arranged inside the upper vessel 3, which are fitted with the upper cylindrical cavity with a gap. An ultrasonic ceramic plate 6 is installed inside the upper vessel 3 between the cooling pipes 1 and the upper cylindrical cavity. Fluid pipes 7 are symmetrically arranged inside the lower vessel 4, which are fitted with the lower cylindrical cavity with a gap. The fluid pipes 7 are connected to the lower cylindrical cavity. An ultrasonic ceramic plate 6 is installed inside the lower vessel 4 between the fluid pipes 7 and the lower cylindrical cavity.
[0023] Cooling pipe 1 is a Z-shaped cooling pipe; ultrasonic ceramic plate 6 is a piezoelectric ceramic plate. Heating rods 10 are symmetrically arranged on the sides of the upper vessel body 3 and the lower vessel body 4. The upper vessel body 3 is fixedly connected to the lower vessel body 4 by bolts 2.
[0024] Temperature sensors 8 are installed inside the upper vessel body 3 and the lower vessel body 4, respectively, to cooperate with the upper cylindrical cavity and the lower cylindrical cavity. The temperature sensors 8 are connected to the temperature control box 9.
[0025] Based on the background analysis of traditional reactors, this invention designs a large-cavity reactor mold based on the traditional intermittent foaming reactor. This invention utilizes 3D printing technology to process conformal cooling pipes 1 inside the mold, and introduces ultrasonic ceramic plates 6 to further regulate the role of supercritical fluid in the foaming process.
[0026] The final properties of microporous foamed plastics depend not only on the properties of the polymer itself, but also on the shape, size, and density of the foamed sample. The structure and morphology of the foam are closely related to the molding and foaming process conditions, such as foaming saturation temperature, pressure, time, and depressurization rate. In order to study the properties of PBAT / PLA composite porous materials in depth and comprehensively, it is necessary to prepare foamed products with good foam structure, that is, to prepare porous materials with spherical shape, uniform distribution, small size, uniform size, and high density.
[0027] from Figure 4It can be seen that the reactor is simulated under different pressures and temperatures, and the reactor pressure is in a safe condition. In the experiment, by applying specific experimental conditions, the foaming sample is allowed to generate a fine microstructure within a certain time, thereby obtaining a foamed product with better performance; therefore, the foaming experiment requires the application of specific foaming saturation temperature and saturation pressure, and the reaction device can quickly release pressure and quickly cool down; the specific pressure of the utility model is 35mpa, and the temperature is 200 DEG C; under the pressure of 35mpa and the temperature of 200 DEG C, the final heating time T is calculated as 0.479h.
[0028] Finally, the utility model can produce a material with spherical bubble shape, uniform distribution, small size, uniform size, high density and large overall size.
[0029] The utility model uses eight bolts 2 to fixedly connect the upper kettle body 3 and the lower kettle body 4; the upper cylindrical vacancy and the lower cylindrical vacancy in the center of the upper kettle body 3 and the lower kettle body 4 jointly form a reaction cavity 5, and supercritical fluid is sent into the reaction cavity 5 through fluid pipeline 7 by constant pressure conveying device to carry out foaming; two profiled cool cooling pipeline 1 are used to cool the upper kettle body 3 and the lower kettle body 4 by using ice tap water through external water pump; two electric heating rods 10 are arranged on the side surface of the upper kettle body 3 and the lower kettle body 4 respectively to heat the upper kettle body 3 and the lower kettle body 4, and each of the upper kettle body 3 and the lower kettle body 4 is provided with a temperature sensor 8, which is connected to the same temperature control box 9 to control and monitor the temperature of the reaction cavity 5; each of the upper kettle body 3 and the lower kettle body 4 is provided with an ultrasonic ceramic sheet 6 connected to the power supply through wire hole 11, and the ultrasonic ceramic sheet 6 is a piezoelectric ceramic sheet, which will generate periodic expansion and contraction vibration under the excitation of high-frequency alternating voltage, thereby converting electric energy into mechanical energy to generate ultrasonic waves to foam the material in the reaction cavity 5.
[0030] Example 2
[0031] The difference between the large-size ultrasonic-assisted high-pressure foaming reactor and example 1 is that the temperature sensor 8 and the temperature control box 9 matched with the upper cylindrical vacancy and the lower cylindrical vacancy are not arranged in the upper kettle body 3 and the lower kettle body 4.
[0032] Example 3
[0033] The difference between the large-size ultrasonic-assisted high-pressure foaming reactor and example 1 is that the lower cylindrical vacancy is provided with a vacancy convex ring, and the vacancy convex ring is engaged with the vacancy concave ring arranged on the outer periphery of the upper cylindrical vacancy.
[0034] The above only describes the preferred embodiments of the utility model, but is not limited to the above examples, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. Large size ultrasonic assisted high pressure foaming reactor characterized in that, The utility model relates to a double -layered reactor, which comprises an upper reactor body and a lower reactor body connected together, the bottom surface center of the upper reactor body is provided with an upper cylindrical hollow, the top surface center of the lower reactor body is provided with a lower cylindrical hollow, the upper cylindrical hollow and the lower cylindrical hollow are connected together to form a reaction cavity, the upper reactor body is symmetrically provided with a cooling pipeline matched with the upper cylindrical hollow, the upper reactor body between the cooling pipeline and the upper cylindrical hollow is provided with an ultrasonic ceramic sheet, the lower reactor body is symmetrically provided with a fluid pipeline matched with the lower cylindrical hollow, the fluid pipeline is communicated with the lower cylindrical hollow, and the lower reactor body between the fluid pipeline and the lower cylindrical hollow is provided with an ultrasonic ceramic sheet.
2. The large scale ultrasonic assisted high pressure foaming reactor of claim 1, wherein, The cooling pipeline is a U-shaped cooling pipeline, and the ultrasonic ceramic sheet is a piezoelectric ceramic sheet.
3. The large scale ultrasonic assisted high pressure foaming reactor of claim 1, wherein, The upper reactor body and the lower reactor body are symmetrically provided with an electric heating rod on the side surface.
4. The large scale ultrasonic assisted high pressure foaming reactor of claim 1, wherein, The upper reactor body is fixedly connected with the lower reactor body through bolts.
5. The large scale ultrasonic assisted high pressure foaming reactor of claim 1, wherein, The upper reactor body and the lower reactor body are provided with temperature sensors matched with the upper cylindrical hollow and the lower cylindrical hollow respectively, and the temperature sensors are connected with a temperature control box.