A siphon device system

Abstract

The utility model discloses a kind of siphon device systems, belong to sewage treatment technical field. Including shell, the inside of shell is equipped with membrane module, membrane module includes membrane shelf, membrane curtain and water collecting main, water collecting main is fixedly connected with suction pipe, the end of suction pipe away from membrane module is connected with flow guide pipe, flow guide pipe and suction pipe constitute siphon pipeline, shell is inner closed shell, space is left between water body liquid level in shell and shell top layer, form air chamber. The utility model is formed by liquid level difference and air chamber positive pressure to form siphon negative pressure, without traditional suction pump, water production of membrane module can be realized, the design that flow guide pipe outlet is lower than shell liquid level, utilize gravitational potential energy to convert into kinetic energy, realize sustained unpowered drainage, the volume of air chamber is adjusted by air cylinder linkage lower pressing plate, according to the batch dynamic adjustment air chamber volume of water intake, realize the pressure fluctuation caused by balance due to liquid level rise and fall, maintain transmembrane pressure difference stability.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a siphon generation device system. Background Technology

[0002] In the field of wastewater treatment, membrane bioreactors (MBRs) are widely used due to their high efficiency in solid-liquid separation. Their core function lies in purifying wastewater through the filtration effect of membrane modules. Traditional MBR systems often rely on suction pumps to provide transmembrane pressure differential (TMP) to drive the permeate flow; however, this approach has the following problems:

[0003] The continuous operation of suction pumps not only increases equipment investment costs, but also consumes a lot of electricity. Especially in large-scale sewage treatment scenarios, energy consumption can account for 30%-50% of the total system energy consumption, which is contrary to the current trend of low-carbon and energy-saving technology development.

[0004] Furthermore, while some non-powered siphon-type MBR systems attempt to achieve water production using liquid level differences, pressure fluctuations within the gas chamber still occur during actual operation, disrupting the negative pressure environment required for siphoning and leading to water production interruptions. Especially when the pressure within the gas chamber is passively controlled via a simple pressure relief valve, it cannot be adjusted in real time according to dynamic operating conditions such as influent and aeration. This makes it difficult for the system to maintain a stable transmembrane pressure difference under complex operating conditions (such as intermittent influent or variable load operation), resulting in excessive fluctuations in permeate flux, which will seriously affect the effluent quality and system reliability. Utility Model Content

[0005] The purpose of this invention is to solve the problems of high energy consumption in membrane module water production and insufficient stability when using siphon water production in the existing technology for sewage treatment, and to propose a siphon generation device system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A siphon generation device system includes a housing, and a membrane assembly is provided inside the housing. The membrane assembly includes a membrane frame, a membrane curtain, and a water collection main pipe, which is fixedly connected to a suction pipe.

[0008] The end of the suction tube furthest from the membrane module is connected to a guide tube, and the guide tube and the suction tube together form a siphon tube.

[0009] The shell is an internally enclosed shell, with a space between the water level inside the shell and the top layer of the shell, forming an air chamber; a pressure control component is provided on the top of the shell.

[0010] In some embodiments, the bottom of the shell is provided with a support, a water inlet pipe, a sewage outlet pipe, and an aeration pipe. The water inlet pipe is used to replenish water into the shell, and the aeration pipe is used to aerate the water in the shell to increase the oxygen content.

[0011] In some embodiments, the water level inside the housing is higher than that of the membrane module, and the water inside the housing is filtered by the membrane curtain in the membrane module.

[0012] In some embodiments, the housing is provided with a liquid level detection unit for detecting the liquid level height of the water inside the housing; the air chamber is provided with a pressure detection unit for detecting the pressure inside the air chamber.

[0013] In some embodiments, the pressure control assembly includes a pressure relief valve for releasing pressure from the chamber.

[0014] In some embodiments, the pressure control assembly further includes a cylinder, the telescopic end of which extends through the top of the housing and is provided with a lower pressure plate. The distance between the lower pressure plate and the water surface inside the housing is adjusted by the cylinder to dynamically and actively adjust the pressure inside the air chamber.

[0015] In some embodiments, a backwash tube is also included for backwashing and cleaning the membrane filaments in the membrane curtain.

[0016] In some embodiments, a reversing valve is provided at the connection between the suction pipe, the guide pipe, and the backwash pipe. The reversing valve rotates to connect the backwash pipe with the suction pipe, or to connect the suction pipe with the guide pipe.

[0017] In some embodiments, the pressure plate includes an inner plate, a buffer, and an outer frame, the buffer being deformable and increasing the space inside the air chamber when it arches upward.

[0018] Compared with the prior art, the present invention provides a siphon generation device system, which has the following beneficial effects.

[0019] 1. This utility model utilizes the combined effect of liquid level difference and positive pressure in the gas chamber to create a siphon negative pressure, enabling water production from the membrane module without the need for a traditional suction pump. This is particularly suitable for remote areas or scenarios with unstable power supply. The design of the guide pipe outlet being lower than the liquid level in the shell utilizes gravitational potential energy to convert into kinetic energy, achieving continuous, non-powered drainage and fundamentally eliminating the energy consumption and mechanical wear of pump-type equipment.

[0020] 2. This utility model adjusts the volume of the air chamber by linking a cylinder with a pressure plate. The air chamber volume is dynamically adjusted according to the batch of incoming water, thus balancing pressure fluctuations caused by liquid level changes, maintaining stable transmembrane pressure differential, and effectively controlling the fluctuation range of permeate flux. Furthermore, the combined design of the buffer and pressure plate automatically compensates for sudden pressure rises caused by bubble escape during aeration, eliminating the need for frequent cylinder start-stop operations, thereby improving system response speed and operational reliability.

[0021] 3. This utility model has a compact structure and strong adaptability. The sealed shell and modular membrane module design reduce the footprint compared to traditional systems and can be flexibly adapted to different treatment scales such as municipal sewage and industrial wastewater. In addition, the batch water intake and pressure buffering mechanism can withstand water quality fluctuations and load shocks, and maintain stable water production even under conditions with high suspended solids concentrations.

[0022] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the shell of this utility model.

[0024] Figure 2 This is a schematic diagram of the pressure control component of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the guide tube of this utility model.

[0026] Figure 4 This is a schematic diagram of the connection between the membrane module and the housing of this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the membrane module of this utility model.

[0028] Figure 6 This is a schematic diagram of the structure of the lower pressure plate and the housing of this utility model.

[0029] Figure 7 This is a schematic diagram of the bottom structure of the pressure plate of this utility model.

[0030] Figure 8 This is a schematic diagram of the structure of the lower pressure plate of this utility model.

[0031] In the picture:

[0032] 1. Shell; 101. Support; 102. Inlet pipe; 103. Drain pipe; 104. Aeration pipe; 2. Membrane module; 201. Membrane frame; 202. Membrane curtain; 203. Main water collection pipe; 204. Suction pipe; 205. Connecting rod; 3. Guide pipe; 301. Backwash pipe; 302. Reversing valve; 4. Pressure control component; 401. Cylinder; 402. Lower pressure plate; 4021. Inner plate; 4022. Outer frame; 4023. Buffer. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] Reference Figure 1-8 A siphon generation device system includes a housing 1. The bottom of the housing 1 is provided with a support 101, an inlet pipe 102, a drain pipe 103, and an aeration pipe 104. Inside the housing 1 is a membrane module 2, which includes a membrane frame 201, a membrane curtain 202, and a main water collection pipe 203. The main water collection pipe 203 is fixedly connected to the suction pipe 204 via a connecting pipe. A connecting rod 205 is provided on the membrane frame 201, and the membrane frame 201 is fixedly connected to the housing 1 via the connecting rod 205.

[0035] Shell 1 is an internally enclosed shell, with a space between the water level inside shell 1 and the top layer of shell 1, forming an air chamber. The water level inside shell 1 is higher than that of membrane module 2. A guide pipe 3 is connected to the end of suction pipe 204 furthest from membrane module 2. An aeration pipe is located below membrane module 2, and is fixedly connected to aeration pipeline 104. The aeration pipeline 104 provides compressed gas to the aeration pipe, increasing the oxygen content in the water inside shell 1.

[0036] The housing 1 is equipped with a liquid level detection unit and the air chamber is equipped with a pressure detection unit. The liquid level detection unit detects the water level in the housing 1 and the pressure detection unit detects the pressure in the air chamber.

[0037] The top of the housing 1 is provided with a pressure control component 4, which includes a pressure relief valve that can release the pressure inside the air chamber to prevent excessive pressure inside the air chamber.

[0038] It also includes a backwash tube 301, which is used to clean impurities attached to the membrane fibers in the membrane curtain 202.

[0039] In this invention, the guide pipe 3 and the suction pipe 204 constitute a siphon pipeline. Specifically, the water level inside the shell 1 is always higher than the suction pipe 204, and the guide pipe 3, which is connected to the suction pipe 204, is always lower than the suction pipe 204. The air chamber inside the shell 1 maintains positive pressure. The positive pressure is used to make the water pass through the membrane filaments of the membrane curtain 202, the main water collection pipe 203, and the guide pipe 3 in sequence and be discharged outward. When the guide pipe 3 starts to drain water outward, the water outlet (i.e., the guide pipe 3) is lower than the inlet liquid level (i.e., the liquid level inside the shell 1). A liquid level difference is formed, providing the potential energy basis for the siphon. At the same time, under the positive pressure in the air chamber, the main water collection pipe 203 and the guide pipe 3 allow the purified water to be discharged outward through the main water collection pipe 203 and the guide pipe 3, satisfying the liquid filling conditions in the siphon pipeline. Subsequently, as the water is discharged outward through the guide pipe 3, a negative pressure is continuously generated in the membrane fibers of the guide pipe 3, the main water collection pipe 203 and the membrane curtain 202. The membrane fibers filter the water, and the filtered water is continuously drained outward without power under the action of the negative pressure in the guide pipe 3 and the main water collection pipe 203.

[0040] The system uses a liquid level detection unit inside the housing 1 to monitor the real-time water level inside the housing 1, preventing the water level from falling below the top of the membrane module 2. The water consumed inside the housing 1 is replenished by the inlet pipe 102.

[0041] The pressure detection unit inside the gas chamber monitors the gas pressure in real time. The pressure detection unit is equipped with a pressure relief valve, which reduces the pressure inside the gas chamber when the pressure is too high.

[0042] To improve the filling efficiency of water in the guide pipe 3 and the main water collection pipe 203, the backwash pipe 301 is connected to the suction pipe 204 and the guide pipe 3. Specifically, a reversing valve 302 is provided at the connection point of the suction pipe 204, the guide pipe 3, and the backwash pipe 301. The suction pipe 204, the guide pipe 3, and the backwash pipe 301 are connected through the reversing valve 302. When filling water in the guide pipe 3 and the main water collection pipe 203, the reversing valve 302 is rotated to connect the backwash pipe 301 with the suction pipe 204. 1. Water is connected to the water pipe. Water flows sequentially through the backwash pipe 301 and the suction pipe 204, and then through the membrane filaments of the membrane curtain 202 into the housing 1. During this process, the pressure in the air chamber is monitored by the pressure detection unit. When the pressure in the air chamber begins to rise, it indicates that the guide pipe 3 and the main water collection pipe 203 have been filled with liquid. Subsequently, the suction pipe 204 and the guide pipe 3 are connected by the reversing valve 302. Utilizing the positive pressure in the air chamber and the liquid level difference, the water in the housing 1 is continuously discharged outward through the main water collection pipe 203 and the guide pipe 3. This method can improve the filling efficiency of the water in the main water collection pipe 203 and the guide pipe 3.

[0043] Furthermore, the pressure control assembly 4 also includes a cylinder 401 fixedly connected to the top of the housing 1. The telescopic end of the cylinder 401 passes through the top of the housing 1 and is fixedly connected to a lower pressure plate 402. The lower pressure plate 402 is sealed to the inner wall of the housing 1. The cylinder 401 adjusts the distance between the lower pressure plate 402 and the water surface inside the housing 1, thereby adjusting the pressure in the air chamber.

[0044] During operation, when water is introduced into the housing 1 in batches through the inlet pipe 102, the water level inside the housing 1 will rise each time water is introduced, increasing the pressure in the air chamber. At this time, the cylinder 401 can move the lower pressure plate 402 upwards, increasing the distance between the lower pressure plate 402 and the water level inside the housing 1, thus increasing the volume of the air chamber. This controls the pressure inside the air chamber, preventing pressure fluctuations from affecting membrane filtration efficiency and avoiding excessive pressure in the air chamber that could damage the equipment structure. This method maintains stable pressure inside the air chamber, ensuring that the introduction of water into the housing 1 does not affect the outward transport of water filtered by the membrane fibers.

[0045] Furthermore, as water is introduced into the shell 1 in batches, the water level inside the shell 1 gradually decreases as the water is transported outwards. Simultaneously, the positive pressure inside the air chamber gradually decreases. Based on the pressure detection results from the pressure detection unit, when the positive pressure inside the air chamber decreases, the extension end of the cylinder 401 drives the lower pressure plate 402 to move downwards. While the water level inside the shell decreases, the lower pressure plate 402 moves downwards synchronously and maintains the pressure inside the air chamber, thereby ensuring the stability of the water output after membrane filtration.

[0046] As more and more impurities adhere to the membrane fibers, the water permeability of the membrane fibers will become worse and worse. In order to avoid affecting the normal delivery of filtered water to the outside, under the condition of maintaining a stable positive pressure in the air chamber, when the guide pipe 3 stops delivering water to the outside or the delivery of water to the outside is unstable, the backwash pipe 301 is connected to the suction pipe 204 through the reversing valve 302. Gas or purified water is pressurized and introduced into the backwash pipe 301 to backwash and clean the membrane fibers.

[0047] As an optional solution, the lower pressure plate 402 includes an inner plate 4021 fixedly connected to the telescopic end of the cylinder 401. The inner plate 4021 is fixedly connected to the outer frame 4022 through a buffer member 4023. The outer frame 4022 is adapted to the inner wall of the housing 1. The outer frame 4022 can be provided with a rubber sealing ring. The buffer member 4023 can be selected as a low-elasticity rubber belt. The cylinder 401 drives the outer frame 4022 to move up and down through the inner plate 4021 and the buffer member 4023.

[0048] During use, when the aeration tube inside the housing 1 aerates, undissolved air bubbles enter the air chamber, causing a brief increase in pressure. The buffer 4023, acting as a space compensation component for the air chamber, deforms and arches upwards during aeration, temporarily increasing the space within the air chamber to maintain stable pressure. During continuous aeration, there is no need to frequently adjust the height of the lower pressure plate 402 via the cylinder 401; the buffer 4023 maintains stable pressure within the air chamber.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A siphon generation device system, comprising a housing (1), characterized in that, The housing (1) is provided with a membrane assembly (2) inside. The membrane assembly (2) includes a membrane frame (201), a membrane curtain (202) and a water collection main pipe (203). The water collection main pipe (203) is fixedly connected to the suction pipe (204). The end of the suction tube (204) away from the membrane module (2) is connected to a guide tube (3), and the guide tube (3) and the suction tube (204) form a siphon tube circuit; The shell (1) is an internally closed shell, and there is a space between the water surface inside the shell (1) and the top layer of the shell (1) to form an air chamber; the top of the shell (1) is provided with a pressure control component (4).

2. The siphon generation device system according to claim 1, characterized in that, The bottom of the shell (1) is provided with a support (101), a water inlet pipe (102), a sewage pipe (103) and an aeration pipe (104). The water inlet pipe (102) is used to replenish water in the shell (1), and the aeration pipe (104) is used to aerate the water in the shell (1) to increase the oxygen content in the water.

3. The siphon generation device system according to claim 1, characterized in that, The water level inside the housing (1) is higher than that inside the membrane module (2), and the water inside the housing (1) is filtered by the membrane curtain (202) in the membrane module (2).

4. The siphon generation device system according to claim 3, characterized in that, The shell (1) is provided with a liquid level detection unit inside, which is used to detect the liquid level height of the water in the shell (1); the air chamber is provided with a pressure detection unit inside, which is used to detect the pressure in the air chamber.

5. A siphon generation device system according to claim 1, characterized in that, The pressure control component (4) includes a pressure relief valve for releasing pressure from the air chamber.

6. A siphon generation device system according to claim 5, characterized in that, The pressure control component (4) also includes a cylinder (401). The telescopic end of the cylinder (401) passes through the top of the housing (1) and is provided with a lower pressure plate (402). The cylinder (401) adjusts the distance between the lower pressure plate (402) and the water surface in the housing (1) to dynamically and actively adjust the pressure in the air chamber.

7. A siphon generation device system according to claim 1, characterized in that, It also includes a backwash tube (301) for backwashing and cleaning the membrane fibers in the membrane curtain (202).

8. A siphon generation device system according to claim 7, characterized in that, A reversing valve (302) is provided at the connection of the suction pipe (204), the guide pipe (3) and the backwash pipe (301). The reversing valve (302) rotates to connect the backwash pipe (301) with the suction pipe (204) or to connect the suction pipe (204) with the guide pipe (3).

9. A siphon generation device system according to claim 1, characterized in that, The lower pressure plate (402) includes an inner plate (4021), a buffer (4023) and an outer frame (4022), wherein the buffer (4023) has deformability and increases the space inside the air chamber when it arches upward.

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