Ultrafiltration system and use method

Abstract

The invention discloses an ultrafiltration system and a use method, and relates to the technical field of membrane separation water treatment.The ultrafiltration system comprises a foundation, an ultrafiltration membrane pool, a water producing pool, a water producing pipe and a siphon device, and the ultrafiltration membrane pool is installed at the top of the foundation; the water producing tank is used for storing water filtered by the ultrafiltration membrane tank, and the bottom of the ultrafiltration membrane tank is higher than the highest liquid level of the water producing tank; one end of the water producing pipe is communicated with the ultrafiltration membrane tank, and the other end is communicated with the water producing tank; the siphon device is arranged on the water producing pipe so that water filtered by the ultrafiltration membrane pool can flow into the water producing pool along the water producing pipe under the action of gravity. The structure is simple, use is convenient, energy is saved, and the operation cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of membrane separation water treatment, and in particular to an ultrafiltration system and a use method thereof. Background Art

[0002] Ultrafiltration is an advanced membrane separation water treatment technology that can effectively remove particles, colloids, bacteria, heat sources and organic matter in water, while solute molecules larger than the membrane pore size are retained by the membrane into a concentrated solution. Submerged ultrafiltration membrane belongs to a mechanical filtration method, which is a screening process related to the membrane pore size, with the pressure difference on both sides of the membrane as the driving force. During the operation of submerged ultrafiltration, the water produced uses a water pump to pump the raw water in the pool, and then the water produced passes through the membrane surface under the action of atmospheric pressure, flows into the water production pipe, and enters the water production pool.

[0003] Although the driving force of ultrafiltration water production is atmospheric pressure, in actual operation, even if a water pump is used for suction throughout the process, the maximum vacuum is only approximately equal to 1 atmospheric pressure. In addition, the lifting pump consumes a lot of power, and the operating power consumption cost is high. Summary of the invention

[0004] The purpose of the present invention is to provide an ultrafiltration system and a method of use to solve the problems existing in the above-mentioned prior art, with a simple structure, easy use, energy saving and effective reduction of operating costs.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides an ultrafiltration system, comprising: a foundation, an ultrafiltration membrane pool, a water production pool, a water production pipe and a siphon device, wherein the ultrafiltration membrane pool is installed on the top of the foundation; the water production pool is used to store water filtered by the ultrafiltration membrane pool, and the bottom of the ultrafiltration membrane pool is higher than the highest liquid level of the water production pool; one end of the water production pipe is connected to the ultrafiltration membrane pool, and the other end is connected to the water production pool; the siphon device is arranged on the water production pipe so that the water filtered by the ultrafiltration membrane pool flows into the water production pool along the water production pipe under the action of gravity.

[0007] Preferably, the height difference between the bottom of the ultrafiltration membrane pool and the highest liquid level of the water production pool is 6 to 8 meters.

[0008] Preferably, the water production pipe includes a water production branch pipe and a water production main pipe, one end of the water production branch pipe is connected to the ultrafiltration membrane pool, and the other end is connected to the water inlet of the water production main pipe, the water outlet of the water production main pipe extends into the water production pool, and the height of the water outlet of the water production main pipe is higher than the highest liquid level of the water production pool.

[0009] Preferably, the water production branch pipe is connected to the bottom of the water inlet of the water production main pipe.

[0010] Preferably, it also includes a regulating valve, which is arranged on the water production branch pipe.

[0011] Preferably, the regulating valve is used to control the flow rate of the water production branch pipe to 0.8-1.2 m / s.

[0012] The present invention also provides a method for using the ultrafiltration system as described in any one of the above items, comprising the following steps:

[0013] Turn on the ultrafiltration system, and the water enters the ultrafiltration membrane pool for filtration;

[0014] Since the bottom of the ultrafiltration membrane pool is 6 to 8 meters higher than the highest liquid level of the water production pool, and a siphon device is installed on the water production pipe, under the action of gravity and siphon, the filtered water will flow from the ultrafiltration membrane pool to the water production pool along the water production pipe;

[0015] The flow rate of the water production branch pipe is adjusted by the regulating valve to be controlled at 0.8-1.2m / s to ensure the water production efficiency, reduce the resistance loss along the way, and at the same time reduce the impact on the vacuum of the ultrafiltration water production branch pipe, thereby improving the stability of the system and the energy-saving effect.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] The present invention provides an ultrafiltration system and a method of using the same. An ultrafiltration membrane pool, a water production pool, a water production pipe and a siphon device are provided, and water is filtered using the ultrafiltration membrane pool. The filtered water flows into the water production pool under the action of gravity and the siphon device. No additional power equipment is required, thereby achieving the purpose of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of the ultrafiltration system provided by the present invention;

[0020] In the figure: 1. Foundation; 2. Ultrafiltration membrane pool; 3. Water production pool; 4. Siphon device; 5. Water production branch pipe; 6. Water production main pipe; 7. Regulating valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The purpose of the present invention is to provide an ultrafiltration system and a method of use to solve the problems existing in the above-mentioned prior art, with a simple structure, easy use, energy saving and effective reduction of operating costs.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Embodiment 1

[0025] This embodiment provides an ultrafiltration system, such as Figure 1 As shown, it includes: a foundation 1, an ultrafiltration membrane pool 2, a water production pool 3, a water production pipe and a siphon device 4, the ultrafiltration membrane pool 2 is installed on the top of the foundation 1; the water production pool 3 is used to store water filtered by the ultrafiltration membrane pool 2, and the bottom of the ultrafiltration membrane pool 2 is higher than the highest liquid level of the water production pool 3; one end of the water production pipe is connected to the ultrafiltration membrane pool 2, and the other end is connected to the water production pool 3; the siphon device 4 is arranged on the water production pipe so that the water filtered by the ultrafiltration membrane pool 2 flows into the water production pool 3 along the water production pipe under the action of gravity. By arranging the ultrafiltration membrane pool 2, the water production pool 3, the water production pipe and the siphon device 4, the ultrafiltration membrane pool 2 is used to filter water, and the filtered water flows into the water production pool 3 under the action of gravity and the siphon device 4, without the need for additional power equipment, thereby achieving the purpose of energy saving.

[0026] In a preferred scheme of the present embodiment, the height difference between the bottom of the ultrafiltration membrane pool 2 and the highest liquid level of the water production pool 3 is 6 to 8 m. Setting the height difference between the bottom of the ultrafiltration membrane pool 2 and the highest liquid level of the water production pool 3 to 6 to 8 m can ensure that the water production main pipe 6 is in a half-pipe water free outflow state, thereby improving the water production efficiency and realizing energy saving by utilizing gravity.

[0027] In a preferred solution of this embodiment, the water production pipe includes a water production branch pipe 5 and a water production main pipe 6. One end of the water production branch pipe 5 is connected to the ultrafiltration membrane pool 2, and the other end is connected to the water inlet of the water production main pipe 6. The water outlet of the water production main pipe 6 extends into the water production pool 3, and the height of the water outlet of the water production main pipe 6 is higher than the highest liquid level of the water production pool 3. The water production pipe is divided into the water production branch pipe 5 and the water production main pipe 6, which can better distribute the water flow and improve the stability of water production. The water outlet height of the water production main pipe 6 is higher than the highest liquid level of the water production pool 3, ensuring that the water production main pipe 6 is in a non-full pipe flow state, reducing the impact on the vacuum of the ultrafiltration water production branch pipe 5.

[0028] In a preferred solution of this embodiment, the water production branch pipe 5 is connected to the bottom of the water inlet of the water production main pipe 6. The water production branch pipe 5 is connected to the bottom of the water inlet of the water production main pipe 6, which can prevent air from being brought in to destroy the vacuum and ensure the stable operation of the system.

[0029] In a preferred solution of this embodiment, a regulating valve 7 is also included. The regulating valve 7 is arranged on the water production branch pipe 5. By arranging the regulating valve 7 on the water production branch pipe 5, the flow rate of the water production branch pipe 5 can be conveniently adjusted, the resistance loss along the way can be reduced, and the water production efficiency can be improved.

[0030] In a preferred scheme of the present embodiment, the regulating valve 7 is used to control the flow rate of the water production branch pipe 5 at 0.8-1.2 m / s. Controlling the flow rate of the water production branch pipe 5 at 0.8-1.2 m / s can not only ensure the water production efficiency, but also reduce the resistance loss along the way, reduce the impact on the vacuum of the ultrafiltration water production branch pipe 5, and improve the stability of the system and the energy-saving effect.

[0031] The present invention also provides a method for using the ultrafiltration system as described above, comprising the following steps:

[0032] 1. Installation and Preparation

[0033] According to the design requirements, a foundation 1 is constructed at a suitable location, and the ultrafiltration membrane pool 2 is installed on the top of the foundation 1 to ensure that the installation is firm and stable.

[0034] The position of the water production pool 3 is determined so that the bottom of the ultrafiltration membrane pool 2 is higher than the highest liquid level of the water production pool 3, and the height difference between the two is controlled at 6-8m.

[0035] Connect the water production pipe, connect one end of the water production branch pipe 5 to the ultrafiltration membrane pool 2, and the other end to the bottom of the water inlet of the water production main pipe 6. At the same time, extend the water outlet of the water production main pipe 6 into the water production pool 3, and ensure that the water outlet height of the water production main pipe 6 is higher than the highest liquid level of the water production pool 3.

[0036] A regulating valve 7 is installed on the water production branch pipe 5 .

[0037] 2. Startup and Operation

[0038] Check whether the connections of the entire ultrafiltration system are tight and whether all components are normal.

[0039] The ultrafiltration system is turned on, and water enters the ultrafiltration membrane pool 2 for filtration.

[0040] Since the bottom of the ultrafiltration membrane pool 2 is 6 to 8 meters higher than the highest liquid level of the water production pool 3, and a siphon device 4 is provided on the water production pipe, under the action of gravity and siphon, the filtered water will flow from the ultrafiltration membrane pool 2 to the water production pool 3 along the water production pipe.

[0041] The flow rate of the water production branch pipe 5 is adjusted by the regulating valve 7 to be controlled at 0.8-1.2 m / s to ensure the water production efficiency, reduce the resistance loss along the way, and at the same time reduce the impact on the vacuum of the ultrafiltration water production branch pipe 5, thereby improving the stability of the system and the energy-saving effect.

[0042] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An ultrafiltration system, characterized in that: include: Base, An ultrafiltration membrane pool, wherein the ultrafiltration membrane pool is installed on the top of the foundation; A water production pool, the water production pool is used to store the water filtered by the ultrafiltration membrane pool, and the bottom of the ultrafiltration membrane pool is higher than the highest liquid level of the water production pool; A water production pipe, one end of which is connected to the ultrafiltration membrane pool, and the other end of which is connected to the water production pool; as well as A siphon device is arranged on the water production pipe so that the water filtered by the ultrafiltration membrane pool flows into the water production pool along the water production pipe under the action of gravity.

2. The ultrafiltration system according to claim 1, characterized in that: The height difference between the bottom of the ultrafiltration membrane pool and the highest liquid level of the water production pool is 6 to 8 meters.

3. The ultrafiltration system according to claim 2, characterized in that: The water production pipe includes a water production branch pipe and a water production main pipe. One end of the water production branch pipe is connected to the ultrafiltration membrane pool, and the other end is connected to the water inlet of the water production main pipe. The water outlet of the water production main pipe extends into the water production pool, and the height of the water outlet of the water production main pipe is higher than the highest liquid level of the water production pool.

4. The ultrafiltration system according to claim 3, characterized in that: The water production branch pipe is communicated with the bottom of the water inlet of the water production main pipe.

5. The ultrafiltration system according to claim 4, characterized in that: It also includes a regulating valve, which is arranged on the water production branch pipe.

6. The ultrafiltration system according to claim 5, characterized in that: The regulating valve is used to control the flow rate of the water production branch pipe to 0.8-1.2 m / s.

7. A method for using the ultrafiltration system according to any one of claims 1 to 6, characterized in that: The following steps are involved: Turn on the ultrafiltration system, and the water enters the ultrafiltration membrane pool for filtration; Since the bottom of the ultrafiltration membrane pool is 6 to 8 meters higher than the highest liquid level of the water production pool, and a siphon device is installed on the water production pipe, under the action of gravity and siphon, the filtered water will flow from the ultrafiltration membrane pool to the water production pool along the water production pipe; The flow rate of the water production branch pipe is adjusted by the regulating valve to be controlled at 0.8-1.2m / s to ensure the water production efficiency, reduce the resistance loss along the way, and at the same time reduce the impact on the vacuum of the ultrafiltration water production branch pipe, thereby improving the stability of the system and the energy-saving effect.

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