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Energy-saving ultrafiltration system control method and ultrafiltration system

A technology of an ultrafiltration system and a control method, applied in the field of an energy-saving ultrafiltration system control method and an ultrafiltration system, can solve problems such as unfavorable equipment operation and maintenance, frequent startup and shutdown of the ultrafiltration system for filtration and backwashing, and consumption of water for backwashing.

Active Publication Date: 2021-06-29
GREENTECH ENVIRONMENTAL CO LTD
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Problems solved by technology

When the flow of incoming water changes greatly, the liquid level of the ultrafiltration inlet pool changes greatly. Under this operating method, the ultrafiltration system will be frequently started and stopped for filtration and backwashing, resulting in unnecessary backwashing water consumption and increased The energy consumption of the system operation is not conducive to the good and stable operation and maintenance of the equipment

Method used

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  • Energy-saving ultrafiltration system control method and ultrafiltration system

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Embodiment Construction

[0044] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0045] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

[0046] figure 1 It is a schematic diagram of the energy-saving ultrafiltration system control method described in the embodiment of the present disclosure.

[0047] Such as figure 1 As shown, the embodiment of the present disclosure provides an energy-saving ultrafiltration system control meth...

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Abstract

The invention relates to the technical field of sewage treatment, and in particular, relates to an energy-saving ultrafiltration system control method and an ultrafiltration system. The control method comprises the steps: starting the ultrafiltration system; monitoring and judging the liquid level height in a water inlet pool, when the liquid level height in the water inlet pool is larger than a first preset value, discharging liquid in the water inlet pool into an ultrafiltration water inlet pipeline, and monitoring and recording the liquid level height change value in the water inlet pool; calculating to obtain an average flow difference value; and adjusting the filtering flow, and reducing the liquid level change in the water inlet pool. According to the method provided by the invention, the time required for the filtering flow to reach the preset value and the change value of the liquid level height in the water inlet pool are monitored, so that the average flow difference value in the water inlet pool is obtained, and the difference value between the water inlet flow and the water outlet flow of the water inlet pool is reduced by adjusting the filtering flow, so that the liquid level change of the water inlet pool is reduced; the liquid level of the water inlet pool is relatively stable, continuous filtration of a filter membrane group is ensured, water consumption during shutdown flushing is reduced, water production cost is reduced, and energy conservation and consumption reduction of the system are realized.

Description

technical field [0001] The disclosure relates to the technical field of sewage treatment, in particular to an energy-saving ultrafiltration system control method and an ultrafiltration system. Background technique [0002] In water treatment, especially when it comes to sewage standard upgrading, ultrafiltration is a common membrane separation treatment process. However, the operation of ultrafiltration membrane systems usually adopts the operation method of variable liquid level, constant flow, and constant cumulative timing backwashing. When the flow of incoming water changes greatly, the liquid level of the ultrafiltration inlet pool changes greatly. Under this operating method, the ultrafiltration system will be frequently started and stopped for filtration and backwashing, resulting in unnecessary backwashing water consumption and increased The energy consumption of the system operation is not conducive to the good and stable operation and maintenance of the equipment....

Claims

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Application Information

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IPC IPC(8): B01D61/22B01D61/18B01D65/02C02F1/44
CPCB01D61/145B01D61/18B01D61/22B01D65/02B01D2321/04B01D2321/16C02F1/008C02F1/444C02F2209/40C02F2209/42C02F2303/14
Inventor 黎泽华苏英强刘牡孙凯林晓峰韩慧铭段梦缘张立言
Owner GREENTECH ENVIRONMENTAL CO LTD
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