Vacuum filling equipment for high-viscosity high-density liquid substances
Patent Information
- Application Number
- CN202522125430.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0005]为了克服现有真空灌装设备因设计不适配高粘度高密度物料，加之流动阻力大、易堵塞、残留多，且高密度导致理论吸程低（如ρ=5000kg/m³时约2.07米），实际受真空极限、管阻和汽蚀影响，可用吸程更短，难以充分吸料，造成计量不准、灌装不完整，影响效率与质量的缺点，本实用新型提供一种高粘度高密度液态物质真空灌装设备
[0012]The beneficial effects of this utility model are as follows: 1. By placing the storage tank at a high position and using gravity pre-filling, combined with vacuum pump suction to form a pressure difference inside and outside the system, this utility model provides dual power for the flow of high-viscosity and high-density materials, effectively overcoming the problems of easy blockage and excessive residue caused by poor material flowability and high pipeline resistance, thus achieving smooth filling and reducing material waste.
Smart Images
Figure CN224715265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum filling technology for liquid substances, and in particular to a vacuum filling device for high-viscosity, high-density liquid substances. Background Technology
[0002] In industries such as chemical, food, pharmaceutical, electronic packaging, and daily chemicals, automated filling of liquid substances is a crucial step in the production process. In recent years, with the development of materials science, the application of high-viscosity (typically greater than 1000 mPa·s) and high-density (typically greater than 1.5 g / cm³) liquid substances has become increasingly widespread, such as high-viscosity epoxy resins, conductive adhesives, thick sauces, and high-density metal salt solutions. Due to their strong intermolecular forces, poor flowability, and large mass per unit volume, traditional atmospheric or ordinary pressure filling methods are no longer sufficient to meet the filling requirements of these materials.
[0003] Existing filling equipment generally suffers from problems such as high flow resistance in pipelines, easy clogging, and serious residue in filling nozzles when handling high-viscosity materials, leading to material waste and cross-contamination. Most common vacuum filling equipment is designed for low-viscosity liquids; its vacuum level, pipeline structure, and drive system are not optimized for high-viscosity, high-density materials, making it difficult to achieve effective material suction and accurate filling. Vacuum filling relies on atmospheric pressure to force material from the storage tank into the metering chamber, and its theoretical maximum suction range is limited by the liquid density. Standard atmospheric pressure can support a water column height of approximately 10.33 meters, while suction range is inversely proportional to density. For a material with a density five times that of water (ρ=5000kg / m³), the theoretical maximum suction range is only about 2.07 meters. In practical applications, limited by the ultimate vacuum level of the vacuum pump (usually not lower than -0.095MPa gauge pressure), pipeline friction losses, flow resistance caused by high viscosity, and the risk of cavitation, the actual usable suction range is far lower than the theoretical value, making it difficult to meet the needs of long-distance or high-level material supply. Therefore, traditional vacuum filling methods often result in insufficient material intake and inaccurate metering due to insufficient suction lift, leading to incomplete or interrupted filling, which seriously affects production efficiency and product quality.
[0004] Therefore, it is necessary to design a vacuum filling device for high-viscosity, high-density liquid substances to solve the above-mentioned technical problems. Utility Model Content
[0005] To overcome the shortcomings of existing vacuum filling equipment, such as unsuitability for high-viscosity, high-density materials, high flow resistance, easy clogging, and excessive residue, as well as the low theoretical suction range due to high density (approximately 2.07 meters when ρ=5000kg / m³), and the even shorter usable suction range due to vacuum limits, pipe resistance, and cavitation, which makes it difficult to fully pick up material, resulting in inaccurate metering, incomplete filling, and affecting efficiency and quality, this utility model provides a vacuum filling device for high-viscosity, high-density liquid substances.
[0006] The technical solution of this utility model is: a vacuum filling device for high-viscosity, high-density liquid substances, including a frame, a storage tank, a sealing cap, handles, a discharge hose, a discharge control valve, a vacuum buffer tank, stainless steel connectors, a vacuum hose, quick-connect sealing heads, a glass tube, O-rings, a conical guide head, a drain pipe, a ball valve, a vacuum pipeline, a vacuum valve, a vacuum pressure gauge, and a vacuum pump. A storage tank is fixedly connected to the left side of the frame, and a sealing cap is placed on top of the storage tank. Handles are fixedly connected to both sides of the top of the sealing cap. A discharge pipe is provided at the bottom of the storage tank, and a discharge hose is connected to the bottom of the discharge pipe. A discharge control valve is connected to the upper part of the discharge hose. A vacuum buffer tank is fixedly connected to the lower part of the frame, and the right side of the vacuum buffer tank is connected to... A stainless steel connector is connected to the vacuum buffer tank. A vacuum hose is connected to the right side of the stainless steel connector. Quick-connect sealing heads are rotatably fitted on the left side of the vacuum hose and the right side of the discharge hose. A glass tube is threadedly connected to one side of each quick-connect sealing head. O-rings are placed inside each quick-connect sealing head, and both O-rings abut against both ends of the glass tube. A conical guide head is fixedly connected inside one of the quick-connect sealing heads. A drain pipe is connected to the front of the vacuum buffer tank. A ball valve is connected to the middle of the drain pipe. A vacuum pipeline is connected to the left side of the vacuum buffer tank. A vacuum valve is connected to the right side of the vacuum pipeline. A vacuum pressure gauge is connected to the left side of the vacuum pipeline. A vacuum pump is connected to the left side of the vacuum pipeline.
[0007] In one embodiment, the lower part of the storage tank has a conical structure.
[0008] In one embodiment, the discharge hose, vacuum hose, and vacuum line are all made of transparent material.
[0009] In one embodiment, an observation plate is also included, which is embedded and fixedly connected to the top of the vacuum buffer tank. The observation plate is made of transparent material.
[0010] In one embodiment, a pressure relief pipe and an air filter are also included, with the pressure relief pipe connected and communicating with the top of the sealing cap, and an air filter fixedly connected inside the pressure relief pipe.
[0011] In one embodiment, the device further includes a fixing plate, a first abutment ring, a screw, a knob, and a second abutment ring. The fixing plate is fixedly connected to the rear of the frame, the first abutment ring is fixedly connected to the front of the fixing plate, the screw is rotatably connected to the front of the fixing plate, the top of the screw protrudes from the fixing plate and is fixedly connected to a knob, the second abutment ring is slidably connected to the front of the fixing plate, the second abutment ring is threadedly connected to the screw, and the glass tube is placed between the tops of the first abutment ring and the second abutment ring.
[0012] The beneficial effects of this utility model are as follows: 1. By placing the storage tank at a high position and using gravity pre-filling, combined with vacuum pump suction to form a pressure difference inside and outside the system, this utility model provides dual power for the flow of high-viscosity and high-density materials, effectively overcoming the problems of easy blockage and excessive residue caused by poor material flowability and high pipeline resistance, thus achieving smooth filling and reducing material waste.
[0013] 2. This utility model removes dissolved gases from the tank and materials by performing a vacuum operation in a closed device, and uses a conical guide head to smoothly inject the material along the pipe wall during the filling process, which significantly reduces the generation and mixing of air bubbles during the filling process, thereby improving the internal density of the product and the filling accuracy.
[0014] 3. This utility model uses a knob to drive a screw, which moves the second abutment ring up and down. Working in conjunction with the first abutment ring, it achieves precise adjustment of the height of the right end of the glass tube. When the second abutment ring rises, the glass tube is tilted with the left side lower and the right side higher. This facilitates the material to concentrate at the bottom of the tube under gravity during the initial filling process and also helps to remove air bubbles during vacuuming. After filling and depressurization are completed, the knob is rotated in the opposite direction to restore the glass tube to a horizontal position, which is convenient for transportation and storage.
[0015] 4. This utility model stabilizes the glass tube by setting an adjustable fixing plate and abutment ring structure, uses transparent pipelines and observation plates to monitor the material flow and the state inside the tank in real time, and slowly restores the pressure to normal through the pressure relief pipe after filling, thereby ensuring safe and reliable operation and avoiding material splashing and system impact, thus improving the effect of improving operational stability and environmental safety. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a three-dimensional structural diagram of the storage tank, sealing cap, handle, and other components of this utility model.
[0018] Figure 3 This is a three-dimensional structural diagram of the vacuum hose, glass tube, and O-ring components of this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the quick-connect sealing head, glass tube, and O-ring components of this utility model.
[0020] Figure 5 This is a three-dimensional structural diagram of the vacuum pipeline, vacuum valve, and vacuum pressure gauge components of this utility model.
[0021] Figure 6 This is a three-dimensional structural diagram of the sealing cap, pressure relief pipe, and air filter components of this utility model.
[0022] Figure 7 This is a three-dimensional structural diagram of the glass tube, fixing plate, and first abutment ring of this utility model.
[0023] Figure 8 This is a three-dimensional structural diagram of the fixing plate, the first abutting ring, and the screw of this utility model.
[0024] In the attached diagram, the following are the reference numerals: 1-frame, 2-storage tank, 3-sealing cover, 4-handle, 5-discharge hose, 6-discharge control valve, 7-quick-connect sealing head, 8-vacuum buffer tank, 9-stainless steel connector, 901-observation plate, 10-vacuum hose, 11-glass tube, 12-O-ring, 13-conical guide head, 14-drain pipe, 15-ball valve, 16-vacuum pipeline, 17-vacuum valve, 18-vacuum pressure gauge, 19-vacuum pump, 20-pressure relief pipe, 21-air filter, 22-fixed plate, 23-first abutment ring, 24-screw, 25-knob, 26-second abutment ring. Detailed Implementation
[0025] Example: A vacuum filling device for high-viscosity, high-density liquid substances, such as... Figures 1-8As shown, the system includes a frame 1, a storage tank 2, a sealing cap 3, a handle 4, a discharge hose 5, a discharge control valve 6, a vacuum buffer tank 8, a stainless steel connector 9, a vacuum hose 10, a quick-connect sealing head 7, a glass tube 11, an O-ring 12, a conical guide head 13, a drain pipe 14, a ball valve 15, a vacuum pipeline 16, a vacuum valve 17, a vacuum pressure gauge 18, and a vacuum pump 19. The frame 1 is made of aluminum or stainless steel square tubing to ensure structural stability. The storage tank 2 is mounted on the upper left side of the frame 1 via screws. The lower part of the storage tank 2 has a conical structure. The storage tank 2 is made of stainless steel (SS304 or SS3). Material 16L), with mirror-polished inner wall to reduce material adhesion. The storage tank 2 can also be customized according to requirements, usually 1.5-2 times the total volume of the glass tube 11 to be filled. A sealing cap 3 is placed on the top side of the storage tank 2. Handles 4 are installed on both sides of the top of the sealing cap 3 by screws. A discharge pipe is welded to the bottom side of the storage tank 2. The bottom side of the discharge pipe is connected to and connected to a discharge hose 5. The discharge hose 5 can be made of silicone or PU material. The upper part of the discharge hose 5 is connected to and connected to a discharge control valve 6. The discharge control valve 6 can be a high-pass butterfly valve or ball valve for quick opening and cutting off of material flow. The lower right side of the frame 1 A vacuum buffer tank 8 is installed with screws to prevent material particles from being accidentally sucked into the vacuum pump, protecting the pump body; it also stabilizes the pressure of the vacuum system and reduces fluctuations. A stainless steel connector 9 is connected to the upper right side of the vacuum buffer tank 8. A vacuum hose 10 is connected to the right end of the stainless steel connector 9. Quick-connect sealing heads 7 are rotatably fitted onto the other end of the vacuum hose 10 and the lower end of the discharge hose 5. A glass tube 11 is threadedly connected to the side of each quick-connect sealing head 7 that is close to each other. O-rings 12 are placed inside each quick-connect sealing head 7, and both O-rings 12 abut against both ends of the glass tube 11. The quick-connect sealing head 7 on the left side has a conical guide head 13 welded inside. The front side of the vacuum buffer tank 8 is connected to and connected to a drain pipe 14. The middle of the drain pipe 14 is connected to and connected to a ball valve 15. The upper left side of the vacuum buffer tank 8 is connected to and connected to a vacuum pipeline 16. The discharge hose 5, vacuum hose 10 and vacuum pipeline 16 are all made of transparent material. The right side of the vacuum pipeline 16 is connected to and connected to a vacuum valve 17. The left side of the vacuum pipeline 16 is connected to and connected to a vacuum pressure gauge 18. The left end of the vacuum pipeline 16 is connected to and connected to a vacuum pump 19. The vacuum pump 19 can be a rotary vane vacuum pump or a rotary vane vacuum pump.
[0026] like Figure 2 and Figure 6As shown, it also includes an observation plate 901, a pressure relief pipe 20, and an air filter 21. The observation plate 901 is embedded in the top side of the vacuum buffer tank 8 and glued on. The observation plate 901 is made of transparent material. The pressure relief pipe 20 is connected to and communicates with the top rear side of the cover 3. The air filter 21 is installed inside the pressure relief pipe 20 by screws. The air filter 21 has a 0.22μm PTFE membrane inside. It is normally open to the atmosphere to ensure gravity flow. If necessary, the valve connected to the pressure relief pipe 20 can be closed to introduce dry inert gas (such as N2) for slight positive pressure assistance as a third power guarantee.
[0027] like Figure 1 , Figure 7 and Figure 8 As shown, it also includes a fixing plate 22, a first abutting ring 23, a screw 24, a knob 25, and a second abutting ring 26. The fixing plate 22 is welded to the rear side of the frame 1. The first abutting ring 23 is welded to the left front part of the fixing plate 22. The screw 24 is rotatably connected to the right front part of the fixing plate 22. The top of the screw 24 protrudes from the fixing plate 22 and is welded to a knob 25. The second abutting ring 26 is slidably connected to the right front part of the fixing plate 22. The second abutting ring 26 is threadedly connected to the screw 24. The glass tube 11 is placed between the top sides of the first abutting ring 23 and the second abutting ring 26.
[0028] When this device is needed, first add the mixed high-viscosity, high-density liquid material to the storage tank 2 and tighten the sealing cap 3. Then, place the glass tube 11 to be filled between the first abutment ring 23 and the second abutment ring 26. Rotate the knob 25 to drive the screw 24 to rotate, causing the second abutment ring 26 to move upward and raise the right side of the glass tube 11 against the first abutment ring 23. At this time, the glass tube 11 is in a state where the left side is lower than the right side. Thread the two ends of the glass tube 11 to the two quick-connect sealing heads 7 on the left and right sides, and use the built-in O-rings 12 to achieve a seal, ensuring the airtightness of the system. After installation, open the vacuum valve 17 and start the vacuum pump 19. The vacuum pump 19 draws vacuum from the vacuum buffer tank through the vacuum pipeline 16. 8. The air in the entire pipeline and the pressure inside the equipment gradually decrease. The vacuum pressure gauge 18 displays the current vacuum level in real time. Under the action of negative pressure, the gas in the storage tank 2 and the glass tube 11 is extracted, and the bubbles that may exist in the material are released and eliminated. When the equipment reaches the predetermined vacuum level, the discharge control valve 6 is slowly opened. At this time, the material in the storage tank 2 flows out through the discharge hose 5 under the dual action of its own gravity and the pressure difference inside and outside the equipment, and is smoothly injected along the inner wall of the glass tube 11 through the conical guide head 13 in the quick-connect sealing head 7 on the left side, effectively reducing turbulence and bubble regeneration. The material continues to flow into the glass tube 11, and the operator can observe the material flow status through the transparent discharge hose 5 and vacuum hose 10.
[0029] After the glass tube 11 is filled, air is slowly introduced into the equipment through the pressure relief pipe 20 and air filter 21 to restore the equipment pressure to normal. Then, the discharge control valve 6 is closed to stop feeding. Next, the vacuum valve 17 is closed and the vacuum pump 19 is stopped. To safely remove the filled glass tube 11, the knob 25 is rotated in the opposite direction to drive the second abutment ring 26 to move down, so that the two ends of the glass tube 11 are level. Finally, the quick-connect sealing head 7 is unscrewed, and the filled glass tube 11 can be removed. The transparent observation plate 901 can be used to monitor the situation inside the tank to prevent materials from accidentally entering the vacuum pipeline 16. If there is liquid accumulation in the vacuum buffer tank 8, it can be discharged from the drain pipe 14 by opening the ball valve 15. This device significantly improves the filling efficiency and quality of high-viscosity and high-density materials through the combined effect of gravity and vacuum, and effectively avoids the mixing of air bubbles and material residue.
Claims
1. A vacuum filling device for high-viscosity, high-density liquid substances, characterized in that: The machine includes a frame (1), a storage tank (2), a sealing cap (3), a handle (4), a discharge hose (5), a discharge control valve (6), a vacuum buffer tank (8), a stainless steel connector (9), a vacuum hose (10), a quick-connect sealing head (7), a glass tube (11), an O-ring (12), a conical guide head (13), a drain pipe (14), a ball valve (15), a vacuum pipeline (16), a vacuum valve (17), a vacuum pressure gauge (18), and a vacuum pump (19). The storage tank (2) is fixedly connected to the left side of the frame (1). A sealing cap (3) is placed on the top of the storage tank (2). Handles (4) are fixedly connected to both sides of the top of the sealing cap (3). A discharge pipe is provided at the bottom of the storage tank (2). The bottom of the discharge pipe is connected to and connected to the discharge hose (5). The upper part of the discharge hose (5) is connected to and connected to the discharge control valve (6). The vacuum buffer tank (8) is fixedly connected to the lower part of the frame (1). A stainless steel connector is connected to and connected to the right side of the vacuum buffer tank (8). (9) The right side of the stainless steel connector (9) is connected to and connected to a vacuum hose (10). The other end of the vacuum hose (10) and the lower end of the discharge hose (5) are both fitted with quick-connect sealing heads (7). A glass tube (11) is threadedly connected to one side of each quick-connect sealing head (7). An O-ring (12) is placed inside each quick-connect sealing head (7). Both O-rings (12) abut against both ends of the glass tube (11). The quick-connect sealing head (7) on one side is fixed inside. A conical guide head (13) is fixedly connected to the vacuum buffer tank (8). A drain pipe (14) is connected to the front of the vacuum buffer tank (8). A ball valve (15) is connected to the middle of the drain pipe (14). A vacuum pipeline (16) is connected to the left of the vacuum buffer tank (8). A vacuum valve (17) is connected to the right of the vacuum pipeline (16). A vacuum pressure gauge (18) is connected to the left of the vacuum pipeline (16). A vacuum pump (19) is connected to the left of the vacuum pipeline (16).
2. The vacuum filling equipment for high-viscosity, high-density liquid substances as described in claim 1, characterized in that: The lower part of the storage tank (2) has a conical structure.
3. The vacuum filling equipment for high-viscosity, high-density liquid substances as described in claim 2, characterized in that: The discharge hose (5), vacuum hose (10) and vacuum line (16) are all made of transparent material.
4. The vacuum filling equipment for high-viscosity, high-density liquid substances as described in claim 3, characterized in that: It also includes an observation plate (901), which is embedded and fixedly connected to the top of the vacuum buffer tank (8). The observation plate (901) is made of transparent material.
5. The vacuum filling equipment for high-viscosity, high-density liquid substances as described in claim 4, characterized in that: It also includes a pressure relief pipe (20) and an air filter (21). The top of the sealing cap (3) is connected to and communicates with the pressure relief pipe (20), and the air filter (21) is fixedly connected inside the pressure relief pipe (20).
6. The vacuum filling equipment for high-viscosity, high-density liquid substances as described in claim 5, characterized in that: It also includes a fixed plate (22), a first abutment ring (23), a screw (24), a knob (25), and a second abutment ring (26). The fixed plate (22) is fixedly connected to the rear of the frame (1). The first abutment ring (23) is fixedly connected to the front of the fixed plate (22). The screw (24) is rotatably connected to the front of the fixed plate (22). The top of the screw (24) protrudes from the fixed plate (22) and is fixedly connected to the knob (25). The second abutment ring (26) is slidably connected to the front of the fixed plate (22). The second abutment ring (26) is threadedly connected to the screw (24). The glass tube (11) is placed between the top of the first abutment ring (23) and the second abutment ring (26).