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Backwashing technology of condensed water front filter

A technology of pre-filter and condensate, applied in the field of filters, can solve the problem of insignificant effect of backwashing structure, and achieve the effects of avoiding blind backwashing, prolonging the operation period and simple process operation.

Active Publication Date: 2017-01-04
FUJIAN HONGSHAN THERMOELECTRICITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The effect of this backwash structure is not obvious

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  • Backwashing technology of condensed water front filter

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specific Embodiment approach

[0015] Such as figure 1 As shown, a backwashing process of a condensate pre-filter includes a pre-filter 11, the top of the pre-filter 11 is provided with an exhaust port 4; the bottom of the pre-filter 11 is provided with a backwash water inlet 1; the side of the pre-filter 11 is provided with an air inlet 2; the bottom of the pre-filter 11 is provided with a backwash drain 3; The process is as follows: it consists of four steps: gravity drainage, oscillating drainage, oscillating water filling and pre-filter filling; after the pre-filter 11 is out of operation and the pressure is released, the first step of gravity drainage is started; the first step of gravity drainage is Connect the exhaust port 4 at the top of the pre-filter 11 to the atmosphere, and drain the water from the backwash drain port 3 of the pre-filter 11 until the backwash drain port 3 has no water flowing out and start the second step; the second step is to oscillate The water is drained from the backwash w...

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Abstract

The invention discloses a backwashing technology of a condensed water front filter. The front filter is included, an exhaust port is formed in the top of the front filter, a backwashing water inlet is formed in the bottom of the front filter, an air inlet is formed in the side edge of the front filter, a backwashing drainage opening is formed in the bottom of the front filter, and a particle counter is arranged on a drainage pipe of the backwashing drainage opening. The front filter is simple in structure and remarkable in backwashing effect, the backwashing effect of the condensed water front filter is improved, backwashing frequency is reduced, the service life of the condensed water refined treatment front filter is prolonged, a lot of demineralized water, acid and alkali can be saved, and economic benefits and social benefits are good.

Description

technical field [0001] The invention relates to the field of filters, in particular to a backwashing process of a condensed water pre-filter. Background technique [0002] At present, the existing backwashing process of the condensate pre-filter in the power plant usually includes more than 10 operating steps, and some even reach more than 20, so the operation is relatively complicated and it is easy to cause operational errors. More importantly, the effect of the existing technological process is not ideal, and the elution rate of the pollutants retained by the pre-filter element is usually less than 10%. Therefore, the pollution rate of the pre-filter filter element is relatively fast, and then the operation period of the pre-filter and the service life of the filter element are obviously shortened, and the operating economy of the pre-filter is obviously deteriorated. In addition, the existing technological process still has the problem that the end point of backwashing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00B01D35/16
CPCB01D35/16B01D2201/086C02F1/001C02F2209/10C02F2303/14
Inventor 李建武李秉正熊大健郑炜毛学华田文华祝晓亮
Owner FUJIAN HONGSHAN THERMOELECTRICITY