Unpowered immersed ultramicro-filtration water production system

Abstract

The utility model provides an unpowered immersed ultramicro-filtration water production system, which is characterized by comprising a membrane tank and a water production tank, a water production pipe is arranged between the membrane tank and the water production tank, a water inlet and a water outlet are arranged on the water production pipe, effluent of the membrane tank is connected to the water production tank through the water production pipe, and the water production tank is connected with the membrane tank through the water production pipe. An electromagnetic flowmeter, a negative pressure meter and an electric control valve are sequentially arranged on the water production pipe in the water production direction; a membrane frame is arranged in the membrane tank, and a baffle is arranged at the bottom of the water producing tank; and liquid level meters are arranged above the inner walls of the membrane tank and the water producing tank. The liquid level difference between the membrane tank and the water inlet of the water production pipe is utilized, and water production of the system is automatically realized through siphoning, so that the device is simple in structure and low in energy consumption, and the operation cost is saved. Meanwhile, automatic and stable water production of the device is realized through automatic program linkage.

Description

Technical Field

[0001] The utility model relates to an ultra-microfiltration water production system, more specifically, to a non-powered immersion type ultra-microfiltration water production system. Background Art

[0002] Immersed ultrafiltration technology is widely used in sewage treatment. However, compared with traditional processes, a major problem limiting the practical application of submerged ultrafiltration is its high operating costs and complex maintenance.

[0003] The current operating mechanism of the submerged ultrafine filtration process is as follows: first, the suction generated by the suction pump is used as the driving force to form sufficient osmotic pressure inside and outside the membrane fibers to drive the sewage through the membrane fibers for filtration. This process requires the suction pump to run continuously, consuming a large amount of electricity, resulting in increased process operating costs; second, a suction device is used to generate negative pressure to drive the sewage through the membrane fibers for filtration. This process requires a separate suction device, has many operating steps, and a low degree of automation. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides a non-powered immersion type ultra-microfiltration water production system, which adopts the following technical solutions:

[0005] A non-powered immersed ultra-microfiltration water production system, characterized in that it comprises a membrane pool and a water production pool, a water production pipe is arranged between the membrane pool and the water production pool, the water production pipe is provided with a water inlet and a water outlet, the water outlet of the membrane pool is connected to the water production pool through the water production pipe, and the water production pipe is provided with an electromagnetic flowmeter, a negative pressure gauge and an electric regulating valve in sequence according to the water production direction; a membrane frame is arranged in the membrane pool, and a baffle is arranged at the bottom of the water production pool; liquid level meters are arranged above the inner walls of the membrane pool and the water production pool.

[0006] Furthermore, a first vacuum hose joint is provided on the top of the membrane frame, a second vacuum hose joint is provided on the water inlet of the water production pipe, and the first vacuum hose joint and the second vacuum hose joint are connected by a steel hose.

[0007] Furthermore, the liquid level elevation of the membrane pool is always higher than the liquid level elevation of the membrane pool; the water inlet of the water production pipe is lower than the starting liquid level of the membrane pool; and the elevation of the water outlet is lower than the elevation of the baffle.

[0008] Furthermore, a vacuum exhaust valve is provided on the top of the water production pipe.

[0009] Furthermore, the liquid level meter, electromagnetic flow meter and electric regulating valve are linked through an automatic program.

[0010] Compared with the prior art, the advantages of the present invention are:

[0011] The water level of the membrane pool in this device is higher than the highest point of the water production pipe section, which can automatically produce a siphon effect without the need for an air suction device and a suction pump. It has a simple structure, low energy consumption, and saves operating costs.

[0012] The liquid level meter, electromagnetic flow meter and electric regulating valve in this device are linked through an automatic program. The system can achieve automatic and stable water production with a high degree of automation, without the need for large-scale electrical equipment, and good safety and stability.

[0013] The water production pipe in this device adopts vacuum technology, uses vacuum flange joints and vacuum clamps, which facilitates the separation of the membrane frame from the pipeline while ensuring the vacuum degree in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Among them, 1-membrane frame, 2-membrane pool, 3-liquid level meter, 4-first vacuum leather hose connector, 5-rigid wire hose, 6-second vacuum leather hose connector, 7-vacuum exhaust valve, 8-electromagnetic flow meter, 9-negative pressure gauge, 10-electric regulating valve, 11-water outlet, 12-baffle, 13-water production pool, 14-water inlet, 15-water production pipe. DETAILED DESCRIPTION

[0016] The utility model is further elaborated and illustrated below in conjunction with the accompanying drawings and specific implementation methods.

[0017] like Figure 1 As shown, the utility model provides a non-powered immersed ultra-microfiltration water production system, which includes a membrane frame 1, a membrane pool 2, a liquid level meter 3, a first vacuum leather hose joint 4, a steel wire hose 5, a second vacuum leather hose joint 6, a vacuum exhaust valve 7, an electromagnetic flowmeter 8, a negative pressure gauge 9, an electric regulating valve 10, a water outlet 11, a baffle 12, a water production pool 13, a water inlet 14, and a water production pipe 15.

[0018] The device includes a membrane pool 2 and a water production pool 13, a water production pipe 15 is arranged between the membrane pool 2 and the water production pool 13, the water production pipe 15 is provided with a water inlet 14 and a water outlet 11, the water outlet of the membrane pool 2 is connected to the water production pool 13 through the water production pipe 15, and the water production pipe 15 is provided with an electromagnetic flowmeter 8, a negative pressure gauge 9 and an electric regulating valve 10 in sequence according to the water production direction; a membrane frame 1 is arranged in the membrane pool 2, and a baffle 12 is arranged at the bottom of the water production pool 13; and liquid level meters 3 are arranged above the inner walls of the membrane pool 2 and the water production pool 13.

[0019] A first vacuum hose joint 4 is provided on the top of the membrane frame 1, and a second vacuum hose joint 6 is provided on the water inlet 14 of the water production pipe, and the first vacuum hose joint 4 and the second vacuum hose joint 6 are connected by a steel hose 5; the liquid level elevation of the membrane pool 2 is always higher than the liquid level elevation of the membrane pool 2; the water inlet of the water production pipe 15 is lower than the starting liquid level of the membrane pool 2; the elevation of the water production port 11 is lower than the elevation of the baffle 12; a vacuum exhaust valve 7 is provided on the top of the water production pipe 15; the liquid level meter 3, electromagnetic flowmeter 8 and electric regulating valve 10 are linked through an automatic program.

[0020] The working principle of the device is as follows:

[0021] Before the initial start-up, close the electric regulating valve 10 and open the vacuum exhaust valve 7. When the liquid level of the membrane pool 2 is higher than the liquid level of the water inlet 14 of the water production pipe, the water in the membrane pool 2 will flow through the membrane frame 1 and the water production pipe 15 to the water production pool 13 under the action of atmospheric pressure;

[0022] After the water production pipe 15 is filled with liquid, the vacuum exhaust valve 7 is closed, and the electric regulating valve 10 is opened, and flow is generated in the water production pipe 15;

[0023] The liquid level meter 3, the electric regulating valve 10 and the electromagnetic flowmeter 8 are linked by the automatic control program. When the liquid level difference between the membrane pool 2 and the water production pool 13 is too large, the actual water production membrane flux is greater than the designed membrane flux. At this time, the opening of the electric regulating valve 10 is reduced to alleviate the fouling of the membrane assembly; when the difference between the liquid level of the membrane pool 2 and the liquid level of the water production pool 13 is small, the opening of the electric regulating valve 10 is increased, and the water production flow rate is increased to meet the design requirements.

[0024] When the liquid level in the membrane pool 2 is low and close to the membrane frame 1, the liquid level gauge 3 on the membrane pool 2 is linked with the electric regulating valve 10, so that the electric regulating valve 10 is closed and water production is stopped, ensuring that the water production pipe 15 is still in a vacuum state when it is started again.

[0025] The traditional submerged ultra-microfiltration process has problems such as low automation, complex operation, high energy consumption, high construction cost, and difficult maintenance in actual application, and its application has limitations. The utility model utilizes the liquid level difference between the membrane pool and the water inlet of the water production pipe to automatically realize system water production through siphon action, making the device simple in structure, low in energy consumption, and saving in operating costs. At the same time, the device realizes automatic and stable water production through automatic program linkage.

[0026] The above-described embodiments are only used to illustrate one implementation method of the utility model, rather than to limit it. It should be pointed out that a person skilled in the art may modify the technical solutions described in the above-described embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by a person skilled in the art without making creative efforts are within the protection scope of the utility model.

Claims

1. A non-powered submerged ultra-microfiltration water production system, characterized in that: It includes a membrane pool and a water production pool, a water production pipe is arranged between the membrane pool and the water production pool, the water production pipe is provided with a water inlet and a water outlet, the water outlet of the membrane pool is connected to the water production pool through the water production pipe, and the water production pipe is provided with an electromagnetic flow meter, a negative pressure gauge and an electric regulating valve in sequence according to the water production direction; a membrane frame is arranged in the membrane pool, a baffle is arranged at the bottom of the water production pool; liquid level meters are arranged above the inner walls of the membrane pool and the water production pool.

2. The unpowered submerged ultramicrofiltration water production system according to claim 1, characterized in that: A first vacuum hose joint is provided on the top of the membrane frame, a second vacuum hose joint is provided on the water inlet of the water production pipe, and the first vacuum hose joint and the second vacuum hose joint are connected by a steel wire hose.

3. The unpowered submerged ultra-microfiltration water production system according to claim 1, characterized in that: The liquid level elevation of the membrane pool is always higher than the liquid level elevation of the membrane pool; the water inlet of the water production pipe is lower than the starting liquid level of the membrane pool; the elevation of the water outlet is lower than the elevation of the baffle.

4. The unpowered submerged ultramicrofiltration water production system according to claim 1, characterized in that: A vacuum exhaust valve is arranged on the top of the water production pipe.

5. The unpowered submerged ultra-microfiltration water production system according to claim 1, characterized in that: The liquid level meter, electromagnetic flow meter and electric regulating valve are linked together through an automatic program.

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