Membrane separation assembly self-adaptive pressure stabilizing system based on pressure difference feedback

Abstract

The utility model belongs to the technical field of membrane separation equipment, particularly relates to a self-adaptive pressure stabilizing system of a membrane separation component based on pressure difference feedback, and aims to solve the problem that the pressure is controlled only by the frequency of a fixed valve or pump when the existing system is actually used, and the pressure cannot be controlled when the resistance of the membrane component is changed due to pollution and the like. According to the technical scheme, the membrane separation assembly self-adaptive pressure stabilizing system based on pressure difference feedback comprises a membrane separation assembly body, and the two ends of the membrane separation assembly body are provided with a liquid inlet end and a liquid outlet end respectively; the utility model has the beneficial effects that the integrated controller accurately regulates and controls according to the preset pressure, sends instructions to the variable frequency pump and the electromagnetic valve, maintains the pressure stable, greatly improves the separation efficiency, and reduces the risks of membrane rupture and leakage. The filter screen at the liquid inlet end intercepts impurities, slows down membrane pollution, prolongs the service life of a membrane assembly, guarantees normal operation of other parts, and reduces equipment faults.

Description

Technical Field

[0001] This utility model relates to a voltage stabilization system, specifically an adaptive voltage stabilization system for membrane separation components based on differential pressure feedback, belonging to the technical field of membrane separation equipment. Background Technology

[0002] Membrane separation technology, as a highly efficient separation method, is widely used in many fields such as water treatment, food processing, and biopharmaceuticals. During operation, stable pressure is crucial for ensuring separation efficiency and extending membrane lifespan. However, pressure fluctuations are common in existing membrane separation systems. Excessive pressure can damage the membrane module, shorten its lifespan, and increase operating costs; conversely, insufficient pressure reduces separation efficiency and impacts production schedules.

[0003] In the prior art, such as the membrane separation component disclosed in announcement number CN216909781U, through the setting of a first connection mechanism and a second connection mechanism, two sets of fixing plates are installed on the surface of the connector head by screws during use, and then the mounting head is tightly fitted with the inside of the connector head. This has the advantages of simple operation and effective sealing of the connection. However, the above-mentioned prior art solution has the following shortcomings: In actual use, the pressure is controlled only by the frequency of a fixed valve or pump. When the resistance of the membrane component changes due to contamination or other reasons, the pressure cannot be adjusted in time, making it difficult to achieve dynamic and adaptive control of the pressure of the membrane separation component. Utility Model Content

[0004] The purpose of this invention is to provide an adaptive pressure stabilization system for membrane separation components based on differential pressure feedback, which addresses the problem that in practical use, the pressure cannot be adjusted in time when the resistance of the membrane module changes due to contamination or other reasons, thus making it difficult to achieve dynamic and adaptive control of the membrane separation component pressure.

[0005] The present invention achieves the above objectives through the following technical solution: an adaptive voltage regulation system for a membrane separation component based on differential pressure feedback, comprising a membrane separation component body;

[0006] The membrane separation unit has an inlet and an outlet at both ends. A pressure sensor is installed on the surface of the membrane separation unit between the inlet and outlet. The detection end of the pressure sensor is located on one side of the inlet. An installation ring is installed on the surface of the membrane separation unit, and an integrated controller is installed on the surface of the installation ring. A solenoid valve is installed at the inlet of the membrane separation unit. The inlet of the membrane separation unit is connected to an external pump, which is a variable frequency pump, through a supply pipe.

[0007] As a further improvement of this invention, the pressure sensor, solenoid valve, and external variable frequency pump are all connected to the integrated controller via signal connection.

[0008] As a further improvement of this invention: an alarm is mounted on the surface of the mounting ring, and the alarm is signal-connected to the integrated controller.

[0009] As a further improvement of this utility model: a fixing concave ring is fixedly installed inside the liquid inlet end of the membrane separation component body, and a filter screen is provided inside the fixing concave ring.

[0010] As a further improvement of this invention, the filter screen is installed inside the fixing recessed ring by bolts.

[0011] As a further improvement of this utility model: the surface of the liquid supply pipe is integrally formed with a locking protrusion, and sealing grooves are provided on both sides of the locking protrusion. A sealing ring is locked in both sealing grooves. A pressure ring is slidably connected to the surface of the locking protrusion, and the pressure ring is threadedly connected to the surface of the liquid inlet end of the membrane separation component body.

[0012] The beneficial effects of this utility model are:

[0013] This invention utilizes a combination of a membrane separation assembly body, mounting ring, integrated controller, alarm, solenoid valve, liquid supply pipe, fixing concave ring, filter screen, and sealing groove. The integrated controller can accurately calculate the parameters to be adjusted based on a preset pressure range, and then send commands to the variable frequency pump and solenoid valve to promptly reduce the speed of the variable frequency pump and decrease the opening of the solenoid valve, maintaining membrane separation under stable pressure conditions. This greatly improves separation efficiency and ensures product quality stability. Compared with traditional pressure stabilization systems, this adaptive pressure stabilization system significantly reduces the probability of membrane rupture, leakage, and other failures through precise pressure control.

[0014] The filter screen inside the inlet end of the membrane separation unit can effectively intercept various particulate impurities before the feed liquid enters the main body of the membrane separation unit, reduce the probability of pollutants adhering to the membrane surface, slow down the membrane fouling rate, further extend the service life of the membrane unit, and at the same time ensure the normal operation of other system components and reduce equipment failures caused by impurities clogging. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the pressure ring, sealing groove, and sealing ring of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the pressure ring, mounting ring, solenoid valve and sealing ring of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the fixing concave ring and the filter screen in this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the fixing concave ring and the filter screen in this utility model;

[0020] In the diagram: 1. Membrane separation unit body; 2. Inlet end; 3. Outlet end; 4. Mounting ring; 5. Integrated controller; 6. Alarm; 7. Solenoid valve; 8. Supply pipe; 10. Fixing concave ring; 11. Filter screen; 12. Pressure ring; 13. Locking protrusion; 14. Sealing groove; 15. Sealing ring; 16. Pressure sensor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] like Figures 1 to 5 As shown, an adaptive voltage regulation system for a membrane separation module based on differential pressure feedback includes a membrane separation module body 1;

[0024] The membrane separation component body 1 has an inlet end 2 and an outlet end 3 at its two ends. A pressure sensor 16 is installed on the surface of the membrane separation component body 1 between the inlet end 2 and the outlet end 3. The detection end of the pressure sensor 16 is located on one side of the inlet end 2. An installation ring 4 is installed on the surface of the membrane separation component body 1. An integrated controller 5 is installed on the surface of the installation ring 4. A solenoid valve 7 is installed at the inlet end 2 of the membrane separation component body 1. The inlet end 2 of the membrane separation component body 1 is connected to an external pump through a supply pipe 8. The pump is a variable frequency pump.

[0025] The pressure sensor 16 monitors the pressure difference between the inlet end 2 and the outlet end 3 of the membrane separation component 1 in real time and transmits the data to the integrated controller 5. The integrated controller 5 can accurately calculate the parameters that need to be adjusted according to the preset pressure range, and then send instructions to the variable frequency pump and the solenoid valve 7. When the pressure difference on the membrane surface increases due to fouling, the integrated controller 5 will reduce the speed of the variable frequency pump and reduce the opening of the solenoid valve 7, accurately controlling the fluid flow and pressure entering the membrane separation component 1, ensuring that membrane separation is carried out under stable pressure conditions, improving separation efficiency and product quality. The cooperation between the variable frequency pump and the solenoid valve 7 allows the system to quickly respond to changes in the operating status of the membrane separation component 1. Whether it is due to fluctuations in material properties or changes in pressure difference caused by membrane fouling, it can be adjusted in time to avoid damage to the membrane component caused by large pressure fluctuations. Compared with traditional pressure stabilization systems, it greatly reduces the probability of membrane rupture, leakage and other failures, ensures long-term stable operation of the system, reduces downtime caused by equipment failure and improves production efficiency.

[0026] Furthermore, the pressure sensor 16, the solenoid valve 7, and the external variable frequency pump are all connected to the integrated controller 5 via signal connection.

[0027] The three components are connected to the integrated controller 5 to form a highly integrated intelligent control system. The pressure sensor 16 collects the pressure difference data between the inlet end 2 and the outlet end 3 of the membrane separation component 1 in real time and transmits it to the integrated controller 5 immediately. The integrated controller 5 quickly analyzes and processes the data according to the preset program and algorithm, and synchronously sends precise control commands to the solenoid valve 7 and the frequency converter pump. This integrated intelligent control avoids the lag and error of manual intervention and greatly improves the system's response speed and control accuracy.

[0028] Furthermore, an alarm 6 is mounted on the surface of the mounting ring 4, and the alarm 6 is signal-connected to the integrated controller 5.

[0029] The signal connection between the alarm 6 and the integrated controller 5 greatly facilitates remote monitoring. When the system is running in the workshop and the managers are in the remote monitoring room, the integrated controller 5 can transmit the alarm information to the monitoring platform through the network, and can arrange maintenance personnel to handle it as soon as possible, thus improving management efficiency.

[0030] Example 2

[0031] Improvements based on Example 1:

[0032] Furthermore, a fixing concave ring 10 is fixedly installed inside the liquid inlet end 2 of the membrane separation component body 1, and a filter screen 11 is installed inside the fixing concave ring 10 by bolts.

[0033] The filter screen 11 installed inside the fixing ring 10 can effectively intercept various particulate impurities before the feed liquid enters the membrane separation unit body 1. By reducing the probability of contaminant adhesion to the membrane surface, it slows down the membrane fouling rate and extends the service life of the membrane unit. The filter screen 11 is fixed inside the fixing ring 10 with bolts, making it easy to disassemble and replace. When the filter screen 11 becomes clogged, the operator can quickly clean or replace it.

[0034] Furthermore, the surface of the liquid supply pipe 8 is integrally formed with a locking protrusion 13, and sealing grooves 14 are provided on both sides of the locking protrusion 13. A sealing ring 15 is locked in both sealing grooves 14. A pressure ring 12 is slidably connected to the surface of the locking protrusion 13, and the pressure ring 12 is threadedly connected to the surface of the liquid inlet end 2 of the membrane separation component body 1.

[0035] The design of the double sealing ring 15 greatly improves the sealing performance between the liquid supply pipe 8 and the liquid inlet end 2 of the membrane separation component body 1. The two sealing rings 15 are respectively snapped into the sealing grooves 14 on both sides of the snap protrusion 13. When the pressure ring 12 is screwed onto the surface of the liquid inlet end 2, the sealing rings 15 are uniformly squeezed and tightly fitted to the contact surface between the sealing groove 14 and the liquid inlet end 2, forming a double sealing barrier. This sealing structure can effectively prevent material leakage, avoid material loss, environmental pollution, and potential hazards to equipment and personnel caused by leakage, and ensure the safety and stability of the production process.

[0036] Working principle: When in use, the power delivery variable frequency pump is started first to transport the sewage to the inlet end 2 of the membrane separation component body 1. At this time, the pressure sensor 16 monitors the pressure difference between the inlet and outlet of the membrane separation component body 1 in real time and transmits the data to the integrated controller 5.

[0037] As operating time increases, contaminants gradually accumulate on the membrane surface, causing the differential pressure to rise. Pressure sensor 16 transmits this data to integrated controller 5. Integrated controller 5 uses its built-in PID calculation algorithm to calculate the need to reduce the opening of solenoid valve 7 and simultaneously reduce the speed of the variable frequency pump. Integrated controller 5 sends a command to solenoid valve 7 to reduce the current in the control coil, thereby reducing the valve opening and thus reducing the flow rate. At the same time, it sends a command to the variable frequency centrifugal pump to reduce the power supply frequency of the motor, thereby reducing the pump speed and thus reducing the feed pressure. After a period of adjustment, the differential pressure between the inlet and outlet of the membrane separation component 1 gradually recovers to the predetermined range and stabilizes within the preset range.

[0038] The filter screen 11 can continuously filter wastewater, remove particulate impurities and suspended solids, prevent these impurities from entering the membrane separation component body 1, causing membrane fouling and clogging, and ensure the normal operation of the membrane separation component body 1 and other system components.

[0039] During practical use, due to the presence of foreign matter in the liquid, the pressure difference between the inlet and outlet of the membrane separation component 1 exceeds the safe pressure threshold. The pressure sensor 16 transmits the abnormal data to the integrated controller 5. The integrated controller 5 immediately sends a command to the alarm 6, which then issues an audible and visual alarm to alert the operator. At the same time, the integrated controller 5 controls the solenoid valve 7 to close, stopping the feeding of the membrane separation component 1 and preventing damage to the membrane component due to excessive pressure.

[0040] During installation, the liquid supply pipe 8 is connected to the liquid inlet end 2 of the membrane separation component body 1. The integrally formed locking protrusion 13 on the surface of the liquid supply pipe 8 is aligned with the port of the liquid inlet end 2 of the membrane separation component body 1. The sealing rings 15 are pre-fitted into the sealing grooves 14 on both sides of the locking protrusion 13. Then, the pressure ring 12 is put on the locking protrusion 13, and the pressure ring 12 is tightly connected to the surface of the liquid inlet end 2 of the membrane separation component body 1 by rotating the thread. During this process, it is ensured that the tightening force of the pressure ring 12 is moderate, so as to ensure the sealing effect and avoid damage to the connecting parts due to excessive tightening.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A differential pressure feedback based self-adaptive pressure stabilizing system for membrane separation assembly, comprising a membrane separation assembly body (1); characterized in that: The membrane separation assembly body (1) is provided with liquid inlet end (2) and liquid outlet end (3) respectively at both ends, the surface of membrane separation assembly body (1) and between liquid inlet end (2) and liquid outlet end (3) is provided with pressure sensor (16), the detection end of pressure sensor (16) is located on one side of liquid inlet end (2); The surface of membrane separation assembly body (1) is provided with mounting ring (4), the surface of mounting ring (4) is provided with integrated controller (5), the liquid inlet end (2) of membrane separation assembly body (1) is provided with electromagnetic valve (7), the liquid inlet end (2) of membrane separation assembly body (1) is connected with external pump through liquid supply pipe (8), and the pump is variable frequency pump.

2. The differential pressure feedback based self-adaptive pressure stabilizing system for membrane separation assemblies of claim 1, wherein: The pressure sensor (16), electromagnetic valve (7) and external variable frequency pump are signal connected with integrated controller (5).

3. The differential pressure feedback based self-adaptive pressure stabilizing system for membrane separation assemblies of claim 1, wherein: The surface of mounting ring (4) is provided with alarm (6), and the alarm (6) is signal connected with integrated controller (5).

4. The differential pressure feedback based self-adaptive pressure stabilizing system for membrane separation assemblies of claim 1, wherein: The liquid inlet end (2) of membrane separation assembly body (1) is fixedly provided with fixed concave ring (10) inside, and the inside of fixed concave ring (10) is provided with filter screen (11).

5. The differential pressure feedback based self-adaptive pressure stabilizing system for membrane separation assemblies of claim 4, wherein: The filter screen (11) is installed in the inside of fixed concave ring (10) through bolt.

6. The differential pressure feedback based self-adaptive pressure stabilizing system for membrane separation assemblies of claim 1, wherein: The surface of liquid supply pipe (8) is integrally formed with clamping convex (13), both sides of clamping convex (13) are provided with sealing groove (14), sealing ring (15) is clamped in the two sealing grooves (14), the surface of clamping convex (13) is slidably connected with pressing ring (12), and the pressing ring (12) is screw connected on the surface of liquid inlet end (2) of membrane separation assembly body (1).

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