A high-pressure homogenizer with an external one-way valve
By externalizing the feed check valve and setting up a plunger water channel, the instability of the high-pressure homogenizer under gas and large particle materials and the wear of the sealing rings were solved. This enabled the equipment to quickly vent, easily clean, and extend the life of the sealing rings, ensuring the normal operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SCIENTZ BIOTECH
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-16
AI Technical Summary
Existing high-pressure homogenizers cannot function properly when encountering gas or large particulate materials, and the plunger seals are prone to wear, making cleaning and maintenance inconvenient.
The feed check valve is placed directly above the pump head. A plunger water channel and annular cavity are set up. The plunger and sealing ring are cleaned and cooled through the plunger water jacket and water connector. The plunger movement is controlled by a servo motor and a reversible electric cylinder.
It enables rapid venting, easy cleaning and maintenance of the high-pressure homogenizer, extends the service life of the sealing ring, reduces frictional resistance, and ensures the normal operation of the equipment.
Smart Images
Figure CN224358325U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of homogenizers, specifically relating to a high-pressure homogenizer with an external one-way valve. Background Technology
[0002] The structure of a typical high-pressure homogenizer generally includes a power unit, a pump head assembly, and a material cup, with the material cup connected to the pump head assembly via pipes. The pump head assembly includes a homogenizing component, a pump head assembly, and a pressure regulating component. The pump head assembly includes a pump head, which internally houses a working chamber, a feed check valve, and a discharge check valve. The power unit includes a motor, a transmission component, and a plunger, with the plunger mounted on the transmission component. During operation, driven by the power unit, the plunger moves back and forth within the working chamber. When the plunger moves backward, a negative pressure is created, opening the feed check valve and drawing material from the material cup into the working chamber. When the plunger moves forward, the feed check valve closes, and the material is continuously compressed until the pressure required for the homogenizing valve in the pressure regulating component to open is reached. Finally, the material is ejected from the discharge check valve.
[0003] When gas is present in the working chamber, it can be compressed. As the plunger moves forward, the feed check valve closes, preventing the homogenizing valve from opening and thus preventing the gas from escaping. The plunger's back-and-forth movement causes the gas in the working chamber to expand and compress repeatedly, preventing material from entering the working chamber and causing the homogenizer to fail to discharge. Therefore, if air enters the existing homogenizer during operation, the pressure regulating component must be loosened to allow the air to escape before readjusting the pressure to the required working pressure. Furthermore, some materials from the material cup may contain large particles, which can cause the feed check valve to leak, resulting in no material output. In this case, the homogenizer must be stopped for cleaning the feed check valve. However, since the feed check valve in existing homogenizers is installed inside the pump head and sealed with a plug, disassembly and cleaning are inconvenient, affecting the normal operation of the homogenizer.
[0004] Furthermore, the working chamber and the plunger are tightly sealed by a plunger seal ring, and there is a contact surface between the plunger and the plunger seal ring. Because the plunger partially contacts the material, material particles from the working chamber may be carried into the contact surface, accumulating in the gap between the plunger and the plunger seal ring. This accumulation is difficult to clean and accelerates the wear of the plunger seal ring. After the high-pressure homogenizer has been shut down for a period of time, the material particles in the gap will drain, harden, or crystallize, accelerating the wear of the plunger seal ring and shortening its service life. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a high-pressure homogenizer with an external one-way valve, which is convenient for exhaust, daily cleaning, maintenance and replacement. In addition, the plunger seal can be cleaned as needed to wash away small particles attached to the plunger surface, ensuring the surface smoothness of the plunger, reducing the frictional resistance during plunger movement, preventing the material accumulated in the gap between the plunger and the plunger seal from drying and crystallizing, and extending the service life of the plunger seal.
[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a high-pressure homogenizer with an external one-way valve, including a power component, a pump head assembly, and a material cup. The pump head assembly includes a homogenizing component, a pump head assembly, and a pressure regulating component. The pump head assembly includes a pump head, and the pump head has a working chamber inside. The material cup communicates with the working chamber via a feed one-way valve. The power component includes a motor, a transmission component, and a plunger. One end of the plunger slidably extends into one side of the working chamber, and the other end of the plunger is connected to the transmission component. The homogenizing component is disposed inside the pump head and located on the other side of the working chamber. The pressure regulating component includes a handwheel, a push rod, and a disc spring. One end of the push rod is connected to the handwheel, and the other end of the push rod extends into the pump head and faces the homogenizing component. The disc spring is sleeved on the push rod. The feed check valve is vertically installed above the pump head. A plunger water jacket is provided on the outside of the plunger. The plunger water jacket is fixed to the pump head. An annular cavity is provided between the plunger water jacket and the plunger. The front and rear sides of the annular cavity are sealed by a first plunger sealing ring and a second plunger sealing ring, respectively. A plunger water channel is provided on the rear side of the first plunger sealing ring. The annular cavity communicates with the plunger water channel. Plunger water connectors are installed at both ends of the plunger water channel. An O-ring is installed between the plunger water jacket and the pump head.
[0007] The working chamber of a new or long-unused high-pressure homogenizer is dry. Operating the homogenizer under these conditions causes severe wear on the plunger seals. In existing high-pressure homogenizers, the material cup is connected to the pump body via a pipe, and the feed check valve is installed inside the pump body. When liquid from the material cup enters the working chamber, the bolts above the feed check valve plug must be removed, and the plug pulled up and down to introduce the material before reinstalling. In this new high-pressure homogenizer, the feed check valve is vertically mounted above the pump head. A thin steel rod is used to push down on the small ball inside the feed check valve from above, expelling gas and allowing liquid to enter the working chamber. Since the feed check valve is a crucial component requiring regular cleaning and maintenance, the external feed check valve in this new invention offers simple daily maintenance and easy replacement.
[0008] In the operation of this high-pressure homogenizer, if the material in the material cup runs out, causing air to enter the working chamber, material can be added to the material cup. Since the push rod is in a compressed state at this time, a thin steel rod can be used to push down on the small ball inside the feed check valve from above through the inside of the material cup to expel the gas, thus allowing the high-pressure homogenizer to resume normal operation. In contrast, existing high-pressure homogenizers require loosening the handwheel to vent the gas until the homogenizer discharges material, then tightening the handwheel to the operating pressure. If the homogenizer still does not discharge material at this point, other drainage measures are required to further expel the gas, making the operation cumbersome.
[0009] Furthermore, during the operation of the high-pressure homogenizer of this utility model, if the material from the material cup contains a small amount of large particles, it will cause the feed check valve to not seal, resulting in the homogenizer having no pressure and not discharging. At this time, it is only necessary to use a thin steel rod to push the small ball inside the feed check valve from above through the inside of the material cup. The new material can bring the large particles from the feed check valve into the working chamber, thereby restoring the pressure of the homogenizer and allowing it to work normally without having to stop the homogenizer and clean the feed check valve.
[0010] The high-pressure homogenizer of this invention has a plunger water channel on the rear side of the first plunger sealing ring. Plunger water connectors are installed at both ends of the plunger water channel, and a plunger water jacket is provided on the outer side of the plunger. Purified water can be introduced into the plunger water channel and the ring cavity through the plunger water connectors to achieve the effect of cooling the plunger and the two plunger sealing rings on the front and rear sides of the ring cavity, and to wash away the particles adhering to the plunger sealing ring and the outer surface of the plunger. This prevents the material particles around the plunger sealing ring from hardening and crystallizing, avoids particles from entering the narrow gap between the plunger sealing ring and the plunger, and at the same time ensures the surface smoothness of the plunger, reduces the frictional resistance during plunger movement, and extends the service life of the plunger sealing ring.
[0011] Preferably, the pump head has an internal material cooling channel. The inlet and outlet of the homogenizing component are connected to the working chamber and the inlet of the material cooling channel, respectively. The outlet of the material cooling channel is connected to a discharge check valve, which can be a short valve or a long valve. The short valve is connected to the material cooling channel, and the long valve is connected to the outlet of the homogenizing component. The discharge check valve can be replaced according to actual needs. When there is a large amount of material (e.g., more than 15 mL but less than 120 mL), the material needs to be cooled using the material cooling channel. In this case, a short valve is used, and the short valve is directly connected to the material cooling channel. When there is a small amount of material (e.g., less than 15 mL), or when there is a large amount of material that needs to be cooled by an external cooler, the material does not need to be cooled through the material cooling channel. In this case, a long valve is used, and the long valve is directly connected to the outlet of the homogenizing component.
[0012] As a further preferred embodiment, the plunger water channel is located inside the pump head.
[0013] As a further preferred embodiment, the pump head is provided with a cooling water channel inside, and cooling water connectors connected to an external cooling water supply system are installed at both ends of the cooling water channel.
[0014] As a further preferred embodiment, the motor is a servo motor, and the transmission components include a reducer and a folding electric cylinder. The output end of the servo motor is connected to the reducer via a coupling, the input end of the folding electric cylinder is connected to the output end of the reducer, and the output end of the folding electric cylinder is connected to the plunger. By driving the folding electric cylinder with the servo motor, the single stroke and movement speed of the plunger can be flexibly controlled.
[0015] Preferably, the transmission component includes a pulley assembly and a crankcase assembly. The input end of the pulley assembly is connected to the output end of the motor, and the output end of the pulley assembly is connected to the plunger. The motor drives the piston in the crankcase assembly to move back and forth via the pulley assembly, achieving linear motion of the plunger. Different power components can be used in different application scenarios for this high-speed homogenizer.
[0016] As a further preferred embodiment, the plunger water channel is disposed on the transition plate, and the transition plate is fixed to the pump head.
[0017] As a further preferred embodiment, a cooler is installed on the pump head, and cooler water connectors for connecting to an external cooling water supply system are respectively installed on the sides of the cooler.
[0018] Preferably, a pressure sensor is installed on the pump head, which is used to detect the internal pressure of the working chamber.
[0019] Compared with the prior art, the present invention has the following advantages: The feed check valve of the high-pressure homogenizer of the present invention is vertically installed above the pump head, which facilitates exhaust, daily cleaning, maintenance and replacement; The high-pressure homogenizer of the present invention has a plunger water channel on the rear side of the first plunger sealing ring, and plunger water connectors are installed at both ends of the plunger water channel, and a plunger water jacket is provided on the outer side of the plunger. Purified water can be introduced into the plunger water channel and the ring cavity through the plunger water connectors to achieve the effect of cooling the plunger and the two plunger sealing rings on the front and rear sides of the ring cavity, and to wash away the particles adhering to the plunger sealing ring and the outer surface of the plunger, thereby preventing the material particles around the plunger sealing ring from hardening and crystallizing, avoiding particles from entering the narrow gap between the plunger sealing ring and the plunger, significantly reducing the wear of the plunger sealing ring caused by particles, while ensuring the surface smoothness of the plunger, reducing the frictional resistance during plunger movement and extending the service life of the plunger sealing ring. Attached Figure Description
[0020] Figure 1This is a schematic diagram of the appearance of the high-pressure homogenizer in Example 1;
[0021] Figure 2 This is a longitudinal sectional view of the main structure of the high-pressure homogenizer in Example 1;
[0022] Figure 3 This is a cross-sectional schematic diagram of the main structure of the high-pressure homogenizer in Example 1;
[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0024] Figure 5 This is a schematic diagram showing the effect of installing a short valve on the high-pressure homogenizer in Example 1;
[0025] Figure 6 This is a schematic diagram showing the effect of installing a long valve on the high-pressure homogenizer in Example 1;
[0026] Figure 7 This is a top view of the main structure of the high-pressure homogenizer in Example 2;
[0027] Figure 8 This is a longitudinal sectional view of the main structure of the high-pressure homogenizer in Example 2;
[0028] The specific reference numerals in the figure are as follows:
[0029] 1-Material cup, 11-Feed check valve, 12-Small ball, 21-Servo motor, 22-Reducer, 23-Return electric cylinder, 3-Homogenizing component, 31-Outlet, 40-Pressure sensor, 41-Pump head, 42-Plunger, 43-Working chamber, 44-Cooling water channel, 45-Material cooling channel, 46-Cooling water connector, 47-Discharge check valve, 48-Plunger water channel, 49-Plunger water connector, 51-Handwheel, 52-Push rod, 53-Disc spring, 6-Plunger water jacket, 61-Annular cavity, 62-First plunger seal ring, 63-Second plunger seal ring, 64-O-ring seal, 71-Motor, 72-Pulley assembly, 73-Crankcase assembly, 74-Transition plate, 8-Cooler, 81-Cooler water connector. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Components or structures not limited in this invention employ conventional techniques in the art.
[0031] The high-pressure homogenizer with an external one-way valve in Example 1, such as Figures 1-4As shown, the system includes a power unit, a pump head assembly, and a material cup 1. The pump head assembly includes a homogenizing component 3, a pump head component, and a pressure regulating component. The pump head component includes a pump head 41, which has a working chamber 43, a material cooling channel 45, and a cooling water channel 44. A pressure sensor 40 is installed on the pump head 41 to detect the internal pressure of the working chamber 43. The material cup 1 communicates with the working chamber 43 via a feed check valve 11. The power unit includes a motor, a transmission component, and a plunger 42, one end of which can slidably extend into the working chamber 43. On one side, the motor is a servo motor 21, and the transmission components include a reducer 22 and a folding electric cylinder 23. The output end of the servo motor 21 is connected to the reducer 22 via a coupling, and the input end of the folding electric cylinder 23 is connected to the output end of the reducer 22. The output end of the folding electric cylinder 23 is connected to the other end of the plunger 42. The homogenizing component 3 is disposed inside the pump head 41 and located on the other side of the working chamber 43. The inlet and outlet of the homogenizing component 3 are respectively connected to the inlet end of the working chamber 43 and the material cooling channel 45. The outlet end of the material cooling channel 45 is connected to... The discharge check valve 47 is a short valve that communicates with the material cooling channel 45. Cooling water connectors 46, connected to an external cooling water supply system, are installed at both ends of the cooling water channel 44. The pressure regulating component includes a handwheel 51, a push rod 52, and a disc spring 53. One end of the push rod 52 is connected to the handwheel 51, and the other end extends into the pump head 41 and faces the homogenizing component 3. The disc spring 53 is sleeved on the push rod 52. The feed check valve 11 is vertically installed directly above the pump head 41. A plunger water jacket 6 is provided on the outside of the plunger 42. The jacket 6 is fixed to the pump head 41. An annular cavity 61 is provided between the plunger water jacket 6 and the plunger 42. The annular cavity 61 communicates with the plunger water channel 48. The front and rear sides of the annular cavity 61 are sealed by the first plunger sealing ring 62 and the second plunger sealing ring 63, respectively. A plunger water channel 48 is provided on the rear side of the first plunger sealing ring 62. The plunger water channel 48 is located inside the pump head 41. The annular cavity 61 communicates with the plunger water channel 48. Plunger water connectors 49 are installed at both ends of the plunger water channel 48. An O-ring seal 64 is installed between the plunger water jacket 6 and the pump head 41.
[0032] According to actual needs, the short valve in Example 1 can be replaced with a long valve, and the long valve can be connected to the outlet 31 of the homogenizing component 3. Figure 5 and Figure 6 These are schematic diagrams showing the effects of installing short valves and long valves on the high-pressure homogenizer in Example 1.
[0033] The high-pressure homogenizer in Example 2 differs from that in Example 1 in that it has a different power component and does not have a material cooling channel. Figure 7 and Figure 8As shown, the power components in Embodiment 2 include a motor 71, a pulley assembly 72, and a crankcase assembly 73. The input end of the pulley assembly 73 is connected to the output end of the motor 71, and the output end of the pulley assembly 72 is connected to the other end of the plunger 42. Furthermore, in Embodiment 2, the plunger water channel 48 is disposed on a transition plate 74, which is fixed to the pump head 41. A cooler 8 is mounted on the pump head 41, and cooler water connectors 81 connected to an external cooling water supply system are respectively installed on the sides of the cooler 8.
[0034] The high-pressure homogenizer described above is easy to vent, clean, maintain, and replace. When gas is present in the working chamber 43 of the pump head 41, causing the homogenizer to not discharge material, the handwheel 51 can be loosened. A thin steel rod can be used to push down on the small ball 12 inside the feed check valve 11 from above through the inside of the material cup 1 to discharge the gas, allowing the material in the material cup 1 to enter the working chamber 43. Then, the handwheel 51 can be tightened, and the pressure inside the working chamber 43 can be adjusted by using the push rod 52.
[0035] During the operation of the high-pressure homogenizer, if the material in the material cup 1 is used up, causing air to enter the working chamber 43, material can be added to the material cup 1. Since the push rod 52 is in a compressed state at this time, the gas can be discharged by pushing the small ball 12 inside the feed check valve 11 from above through the inside of the material cup 1 through the small ball 12 inside the feed check valve 11, thereby allowing the high-pressure homogenizer to resume normal operation.
[0036] Furthermore, during the operation of the aforementioned high-pressure homogenizer, if the material from material cup 1 contains a small amount of large particles, it will cause the feed check valve 11 to become unsealed, resulting in the homogenizer having no pressure and not discharging material. In this case, simply use a thin steel rod to push the small ball 12 inside the feed check valve 11 downwards from above through the inside of material cup 1. The new material will then carry the large particles from the feed check valve 11 into the working chamber 43, thereby restoring the pressure of the homogenizer and allowing it to operate normally without having to stop the homogenizer and clean the feed check valve 11.
[0037] After the high-pressure homogenizer is put into use, purified water can be introduced into the plunger water channel 48 and the annular cavity 61 through the plunger water connector 49. This achieves the effect of cooling the plunger 42 and the first plunger sealing ring 62 and the second plunger sealing ring 63 on the front and rear sides of the annular cavity 61, and washing away the particles adhering to the first plunger sealing ring 62 and the second plunger sealing ring 63 and the outer surface of the plunger 42. This prevents the material particles around the first plunger sealing ring 62 and the second plunger sealing ring 63 from hardening and crystallizing, and avoids particles from entering the slit between the first plunger sealing ring 62, the second plunger sealing ring 63 and the plunger 42. This significantly reduces the wear of the plunger sealing rings caused by particles, while ensuring the surface smoothness of the plunger 42, reducing the frictional resistance when the plunger 42 moves, and extending the service life of the first plunger sealing ring 62 and the second plunger sealing ring 63.
Claims
1. A high-pressure homogenizer with an external one-way valve, comprising a power unit, a pump head assembly, and a material cup, wherein the pump head assembly includes a homogenizing component, a pump head assembly, and a pressure regulating component; the pump head assembly includes a pump head, the pump head having an internal working chamber; the material cup communicating with the working chamber via a feed one-way valve; the power unit includes a motor, a transmission component, and a plunger; one end of the plunger slidably extends into one side of the working chamber, and the other end of the plunger is connected to the transmission component; the homogenizing component is disposed within the pump head and located on the other side of the working chamber; the pressure regulating component includes a handwheel, a push rod, and a disc spring; one end of the push rod is connected to the handwheel, and the other end of the push rod extends into the pump head and faces the homogenizing component; the disc spring is sleeved on the push rod, characterized in that... The feed check valve is vertically installed above the pump head. A plunger water jacket is provided on the outside of the plunger and is fixed to the pump head. An annular cavity is provided between the plunger water jacket and the plunger. The front and rear sides of the annular cavity are sealed by a first plunger sealing ring and a second plunger sealing ring, respectively. A plunger water channel is provided on the rear side of the first plunger sealing ring. The annular cavity communicates with the plunger water channel. Plunger water connectors are installed at both ends of the plunger water channel. An O-ring is installed between the plunger water jacket and the pump head.
2. The high-pressure homogenizer with an external one-way valve according to claim 1, characterized in that, The pump head is provided with a material cooling channel inside. The inlet and outlet of the homogenizing component are respectively connected to the working chamber and the inlet end of the material cooling channel. The outlet end of the material cooling channel is connected to a discharge check valve. The discharge check valve is a short valve or a long valve. The short valve is connected to the material cooling channel, and the long valve is connected to the outlet of the homogenizing component.
3. The high-pressure homogenizer with an external one-way valve according to claim 2, characterized in that, The plunger water channel is located inside the pump head.
4. A high-pressure homogenizer with an external one-way valve according to claim 2, characterized in that, The pump head has a cooling water channel inside, and cooling water connectors connected to an external cooling water supply system are installed at both ends of the cooling water channel.
5. A high-pressure homogenizer with an externally mounted one-way valve according to any one of claims 2 to 4, characterized in that, The motor is a servo motor, and the transmission components include a reducer and a folding electric cylinder. The output end of the servo motor is connected to the reducer via a coupling, the input end of the folding electric cylinder is connected to the output end of the reducer, and the output end of the folding electric cylinder is connected to the plunger.
6. A high-pressure homogenizer with an external one-way valve as described in claim 1, characterized in that, The transmission components include a pulley assembly and a crankcase assembly. The input end of the pulley assembly is connected to the output end of the motor, and the output end of the pulley assembly is connected to the plunger.
7. A high-pressure homogenizer with an external one-way valve as described in claim 6, characterized in that, The plunger water channel is disposed on the transition plate, and the transition plate is fixed to the pump head.
8. A high-pressure homogenizer with an external one-way valve as described in claim 6, characterized in that, A cooler is installed on the pump head, and cooler water connectors for connecting to an external cooling water supply system are installed on the sides of the cooler.
9. A high-pressure homogenizer with an external one-way valve according to claim 1, characterized in that, A pressure sensor is installed on the pump head, and the pressure sensor is used to detect the internal pressure of the working chamber.