Drying device for aerogel production
By designing an aerogel drying device containing an inner barrel, a fan and a heater, the problem of insufficient contact between the supercritical fluid and the gel is solved, the quality of the aerogel generation and drying efficiency are improved, and a stable drying environment is ensured.
Patent Information
- Application Number
- CN202421070450.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-16
AI Technical Summary
In the existing aerogel drying production, supercritical fluid cannot fully flow in the closed space and contact the gel, resulting in a decrease in the quality of the aerogel.
A drying device for aerogel production is designed, including inner barrel, fan, heater, sensor and sealing structure. The air intake pipe is pressurized, the fan is accelerated, the heater is uniformly heated and sensor monitoring is ensured to ensure supercritical fluid and gel. Fully contact and stabilize the environment.
It improves the quality of aerogel generation, maintains a stable air pressure environment, enhances drying efficiency and temperature control, facilitates maintenance and observation, and ensures the stability and quality of the drying process.
Smart Images
Figure CN222231138U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aerogel production, in particular to a drying device for aerogel production. Background Art
[0002] Aerogel refers to a nano-scale porous solid material formed by using a sol-gel method to replace the liquid phase in the gel with gas in a certain drying method, such as gelatin, gum arabic, silica gel, hair, nails, etc. Aerogel also has the properties of gel, that is, it has expansion, thixotropy, and slurry separation.
[0003] In order to prevent the surface tension in the micropores of the gel from causing damage to the material structure during the drying process of the gel, a supercritical drying process is adopted. The gel is placed in a pressure vessel and heated and pressurized to cause the liquid in the gel to undergo a phase transition into a supercritical fluid. The gas-liquid interface disappears and the surface tension no longer exists. At this time, the supercritical fluid is released from the pressure vessel to obtain a porous, disordered, low-density aerogel material with a nanoscale continuous network structure.
[0004] Existing aerogel drying production generally uses a drying kettle. In the closed space, the supercritical fluid cannot fully flow and fully contact with the gel, which reduces the quality of the formed aerogel. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes a drying device for aerogel production.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A drying device for aerogel production comprises an outer box, an inner barrel is mounted on the inner wall of the outer box through a bracket, a plurality of fan brackets are mounted on the lower end of the inner wall of the inner barrel, a fan motor is mounted on each of the fan brackets, a fan blade is fixed on the output end of the fan motor, a feed door is mounted on the front end of the outer box, an air intake pipe is opened above the inner barrel and the outer box, an air intake valve is mounted on the air intake pipe, a pressure relief pipe is opened at the rear end of the inner barrel and the outer box, a pressure relief valve is mounted on the pressure relief pipe, a control console is arranged next to the outer box, and the control console is electrically connected to the plurality of fan motors.
[0008] As a further solution of the utility model: the contact surface between the feed door and the outer box is provided with a first sealing ring, the contact surface between the feed door and the inner barrel is provided with a second sealing ring, and the contact surfaces between the air intake pipe and the pressure relief pipe and the inner barrel are respectively provided with sealing rings.
[0009] As a further solution of the utility model: an observation window is opened in the middle of the feed door, and the observation window is made of transparent material.
[0010] As a further solution of the utility model: a guide groove is provided inside the inner barrel, a storage rack is slidably installed in the guide groove, a plurality of grilles are evenly provided on the storage rack, and a plurality of storage boxes are placed on the storage rack.
[0011] As a further solution of the utility model: a plurality of heater brackets are evenly arranged on the outer wall of the inner barrel, a plurality of heater brackets are fixed with heaters, the heater brackets and the heaters are both ring-mounted on the outer wall of the inner barrel, and a plurality of the heaters are electrically connected to the control console.
[0012] As a further solution of the present invention: a sensor is installed at the rear end of the inner wall of the inner barrel, and the sensor is electrically connected to the control console.
[0013] As a further solution of the utility model: a maintenance door is provided on the side of the outer box.
[0014] As a further solution of the utility model: the outer box has a two-layer structure, and a heat-insulating layer is arranged between the two layers of the outer box.
[0015] The beneficial effects of the utility model are:
[0016] 1. According to the scheme, the supercritical fluid is introduced through the air inlet pipe for pressurization, and the fans at the bottom of the inner barrel accelerate the fluidity of the supercritical fluid in the inner barrel, so that it can fully contact with the gel, thereby improving the quality of the generated aerogel.
[0017] 2. Through the above solution, when the device is working, no gas will flow into or out of the inner barrel, maintaining a stable air pressure environment, thereby ensuring the quality of aerogel drying.
[0018] 3. By setting up an observation window, the operator can conveniently observe the working status of the internal mechanism when the device is working, which is conducive to timely discovery and resolution of problems.
[0019] 4. Through the scheme, the operator can put the gel to be dried into the storage box for drying. The grille on the storage rack facilitates the circulation of gas, and the guide groove facilitates the operator to take out and put into the storage rack, which is convenient for placing the storage box.
[0020] 5. Through the scheme, the heater arranged in an annular manner can fully and evenly heat the space inside the barrel, thereby improving the drying efficiency of the aerogel.
[0021] 6. By installing sensors, operators can monitor the internal temperature and pressure in real time to ensure the stability of the aerogel drying environment so as not to affect the quality of the aerogel.
[0022] 7. By setting up a maintenance door, operators can easily maintain and replace the internal mechanisms.
[0023] 8. By setting up the insulation layer, the device can maintain the stability of the temperature in the inner barrel and improve the drying quality of the aerogel. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic structural diagram of a drying device for aerogel production proposed in the utility model;
[0025] Figure 2 This is a front view of a drying device for aerogel production proposed by the utility model;
[0026] Figure 3 This is a cross-sectional view of a drying device for aerogel production proposed by the utility model;
[0027] Figure 4 The utility model proposed Figure 3 A schematic diagram of the structure at A;
[0028] Figure 5 The utility model proposed Figure 3 Schematic diagram of the structure at point B.
[0029] In the figure: 1-outer box, 2-maintenance door, 3-feed door, 4-inlet pipe, 5-inlet valve, 6-observation window, 7-control console, 8-guide groove, 9-storage rack, 10-pressure relief pipe, 11-pressure relief valve, 12-sensor, 13-inner barrel, 14-heater bracket, 15-heater, 16-insulation layer, 17-storage box, 18-first sealing ring, 19-second sealing ring, 20-fan bracket, 21-fan motor, 22-fan blades. DETAILED DESCRIPTION
[0030] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.
[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0032] Example 1
[0033] A drying device for aerogel production, such as Figure 1-5As shown, it includes an outer box 1, in order to allow the supercritical fluid to fully circulate and fully contact with the gel when the aerogel is dried; an inner barrel 13 is installed on the inner wall of the outer box 1 through a bracket, and a plurality of fan brackets 20 are installed on the lower end of the inner wall of the inner barrel 13, and a fan motor 21 is installed on each of the fan brackets 20, and a fan blade 22 is fixed on the output end of the fan motor 21, a feed door 3 is installed at the front end of the outer box 1, an air intake pipe 4 is opened above the inner barrel 13 and the outer box 1, and an air intake valve 5 is installed on the air intake pipe 4, a pressure relief pipe 10 is opened at the rear end of the inner barrel 13 and the outer box 1, and a pressure relief valve 11 is installed on the pressure relief pipe 10, and a control console 7 is arranged next to the outer box 1, and the control console 7 is electrically connected to the plurality of fan motors 21.
[0034] According to the scheme, supercritical fluid is introduced through the air inlet pipe for pressurization, and several fans at the bottom of the inner barrel accelerate the fluidity of the supercritical fluid in the inner barrel, so that it can fully contact with the gel, thereby improving the quality of the generated aerogel.
[0035] The device is further configured as follows: Figure 4 As shown, the contact surface between the feed door 3 and the outer box 1 is provided with a first sealing ring 18, the contact surface between the feed door 3 and the inner barrel 13 is provided with a second sealing ring 19, and the contact surfaces between the air intake pipe 4 and the pressure relief pipe 10 and the inner barrel 13 are respectively provided with sealing rings.
[0036] Through the solution, when the device is working, no gas will flow into or out of the inner barrel, and a stable air pressure environment is maintained, thereby ensuring the quality of aerogel drying.
[0037] The device is further configured such that an observation window 6 is provided in the middle of the feed door 3, and the observation window 6 is made of a transparent material.
[0038] By setting up an observation window, operators can conveniently observe the working status of the internal mechanism when the device is working, which helps to discover and solve problems in time.
[0039] The device is further configured such that a guide groove 8 is provided inside the inner barrel 13 , a storage rack 9 is slidably installed in the guide groove 8 , a plurality of grids are evenly provided on the storage rack 9 , and a plurality of storage boxes 17 are placed on the storage rack 9 .
[0040] With the solution, the operator can put the gel to be dried into the storage box for drying. The grille on the storage rack facilitates the circulation of gas, and the guide groove facilitates the operator to take out and put into the storage rack, making it convenient to place the storage box.
[0041] To solve the heating problem; Figure 3As shown, a plurality of heater brackets 14 are evenly arranged on the outer wall of the inner barrel 13, and heaters 15 are fixed on a plurality of the heater brackets 14. The heater brackets 14 and the heaters 15 are both ring-shaped and sleeved on the outer wall of the inner barrel 13, and a plurality of the heaters 15 are electrically connected to the console 7.
[0042] Through the scheme, the heater arranged in an annular manner can fully and evenly heat the space inside the barrel, thereby improving the drying efficiency of the aerogel.
[0043] The device is further configured such that a sensor 12 is installed at the rear end of the inner wall of the inner barrel 13 , and the sensor 12 is electrically connected to the console 7 .
[0044] By installing sensors, operators can monitor the internal temperature and pressure in real time to ensure the stability of the aerogel drying environment so as not to affect the quality of the aerogel.
[0045] The device is further configured such that a maintenance door 2 is provided on the side of the outer box 1 .
[0046] By setting up a maintenance door, operators can easily maintain and replace the internal mechanisms.
[0047] The device is further configured such that the outer box 1 is a two-layer structure, and a heat-insulating layer 16 is provided between the two layers of the outer box 1 .
[0048] By setting up a heat-insulating layer, the device can maintain the stability of the temperature in the inner barrel and improve the drying quality of the aerogel.
[0049] Working principle: the operator opens the feed door 3, pulls out the rack 9, places several boxes 17 containing the gel to be dried on the rack 9, then returns the rack 9 to the inner barrel 13 through the guide groove 8, and closes the feed door 3; closes the pressure relief valve 11, opens the air intake valve 5 to connect the air intake pipe 4 to the supercritical fluid, pressurizes the inside of the inner barrel 13, turns on the heater 15 to heat the inside of the inner barrel 13, and adjusts in real time according to the data fed back by the sensor 12 to keep the ambient temperature and pressure stable; after drying, turns off the heater 15 for cooling, and opens the pressure relief valve 11 to restore the normal air pressure inside the inner barrel 13. After completion, take out the dried aerogel to complete a working cycle.
[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A drying device for aerogel production, characterized in that: The invention comprises an outer box (1), wherein an inner barrel (13) is mounted on the inner wall of the outer box (1) via a bracket, a plurality of fan brackets (20) are mounted on the lower end of the inner wall of the inner barrel (13), a fan motor (21) is mounted on each of the fan brackets (20), a fan blade (22) is fixed to the output end of the fan motor (21), a feed door (3) is mounted on the front end of the outer box (1), an air intake pipe (4) is opened above the inner barrel (13) and the outer box (1), an air intake valve (5) is mounted on the air intake pipe (4), a pressure relief pipe (10) is opened at the rear end of the inner barrel (13) and the outer box (1), a pressure relief valve (11) is mounted on the pressure relief pipe (10), a control console (7) is arranged next to the outer box (1), and the control console (7) is electrically connected to the plurality of fan motors (21).
2. A drying device for aerogel production according to claim 1, characterized in that: The contact surface between the feed door (3) and the outer box (1) is provided with a first sealing ring (18), the contact surface between the feed door (3) and the inner barrel (13) is provided with a second sealing ring (19), and the contact surfaces between the air intake pipe (4) and the pressure relief pipe (10) and the inner barrel (13) are both provided with sealing rings.
3. A drying device for aerogel production according to claim 2, characterized in that: An observation window (6) is provided in the middle of the feed door (3), and the observation window (6) is made of a transparent material.
4. A drying device for aerogel production according to claim 3, characterized in that: A guide groove (8) is provided inside the inner barrel (13), a storage rack (9) is slidably installed in the guide groove (8), a plurality of grids are evenly provided on the storage rack (9), and a plurality of storage boxes (17) are placed on the storage rack (9).
5. The drying device for aerogel production according to claim 4, characterized in that: A plurality of heater brackets (14) are evenly arranged on the outer wall of the inner barrel (13), and heaters (15) are fixed on the plurality of heater brackets (14). The heater brackets (14) and the heaters (15) are both ring-shaped and sleeved on the outer wall of the inner barrel (13), and the plurality of heaters (15) are electrically connected to the control console (7).
6. A drying device for aerogel production according to claim 5, characterized in that: A sensor (12) is installed at the rear end of the inner wall of the inner barrel (13), and the sensor (12) is electrically connected to the control console (7).
7. A drying device for aerogel production according to claim 6, characterized in that: A maintenance door (2) is provided on the side of the outer box (1).
8. The drying device for aerogel production according to claim 7, characterized in that: The outer box (1) has a two-layer structure, and a heat-insulating layer (16) is arranged between the two layers of the outer box (1).