CN-224212500-U - MBR membrane pond sprays foam breaker

CN224212500UCN 224212500 UCN224212500 UCN 224212500UCN-224212500-U

Abstract

The utility model relates to an MBR membrane tank spray defoaming device, which comprises a support frame arranged above a tank opening of an MBR membrane tank, wherein a plurality of spray pipes are arranged in the support frame and are distributed at intervals along the length direction of the MBR membrane tank, the spray pipes extend along the width direction of the MBR membrane tank, a plurality of water outlet holes are formed in the bottom of the spray pipes and are distributed at intervals along the length direction of the spray pipes, and the water outlet holes are beneficial to water in the spray pipes to drop into the MBR membrane tank. The utility model has reasonable structural design, the plurality of spray pipes are arranged above the pool opening of the MBR membrane pool, the water outlet holes are formed at the bottoms of the spray pipes, water in the spray pipes is dripped into the MBR membrane pool through the water outlet holes, foam is destroyed by utilizing water drops, the spray defoaming effect on the whole MBR membrane pool is realized, the operation is simple, and the use is flexible.

Inventors

CHEN HONGZHI
Ye Xiangting
LIN QIUHONG
CHEN HANGUANG
SHI XIAOHANG
ZHANG HUI
GAO HONGDENG
CHEN HONGKANG
Gao Rengang
HUANG YABAO

Assignees

福建海峡环保集团股份有限公司
福建蓝园海峡环保有限公司

Dates

Publication Date: 20260508
Application Date: 20241217

Claims (2)

1. The MBR membrane pond spray defoaming device is characterized by comprising a support frame arranged above a pond opening of the MBR membrane pond, wherein a plurality of spray pipes are arranged in the support frame and are distributed at intervals along the length direction of the MBR membrane pond, the spray pipes extend along the width direction of the MBR membrane pond, a plurality of water outlet holes are formed in the bottom of the spray pipes and are distributed at intervals along the length direction of the spray pipes, and the water outlet holes are beneficial to water in the spray pipes to drop into the MBR membrane pond; the inside of the supporting frame is provided with a water flow channel, the plurality of spray pipes are communicated with the water flow channel in the supporting frame, the supporting frame is connected with a water inlet pipe, and the water inlet pipe is used for inputting tap water; The support frame comprises a pair of transverse pipelines which are distributed front and back, the transverse pipelines extend along the length direction of the MBR membrane tank, a longitudinal pipeline is connected between the left ends of the pair of transverse pipelines, the longitudinal pipeline extends along the width direction of the MBR membrane tank, the longitudinal pipeline is communicated with the pair of transverse pipelines, and a water flow channel is formed between the pair of transverse pipelines and the interior of the longitudinal pipeline; The left end of the transverse pipeline positioned at the rear side is connected with a first water inlet pipe, and the first water inlet pipe corresponds to the position of the spray pipe positioned at the leftmost side; The pair of transverse pipelines are respectively connected with guardrails on the front side and the rear side of the MBR membrane tank through connecting pieces; The connecting piece comprises a hanging rod and a pipe buckle sleeved outside the transverse pipeline, wherein the upper end of the hanging rod is provided with a hook part used for being hung on the guardrail, and the side wall of the hook part is in threaded connection with a first locking bolt used for abutting against the guardrail; The left end and the right end of the transverse pipeline are supported at the top of the MBR membrane tank through supporting pieces; The support piece comprises an inverted T-shaped support base, a support pipe which is transversely arranged is fixed at the top of the support base, the transverse pipeline stretches into the support pipe, and second locking bolts for propping against the transverse pipeline are screwed on the left and right sides of the top of the support pipe; Between the support frames above two adjacent MBR membrane tanks, the transverse pipelines positioned on the same side extend into the same support pipe, and two second locking bolts at the top of the support pipe lock the two transverse pipelines respectively.
2. The MBR membrane pond spraying defoaming device of claim 1, wherein the pipe buckle comprises an upper pressing plate and a lower pressing plate which are arranged up and down and downward, the upper pressing plate and the lower pressing plate are in semicircular arc shapes, one ends of the upper pressing plate and the lower pressing plate are hinged, the other ends of the upper pressing plate and the lower pressing plate are locked in a matched mode through connecting bolts and nuts, and the lower pressing plate is connected with an L-shaped connecting rod.

Description

MBR membrane pond sprays foam breaker Technical Field The utility model relates to a spraying defoaming device for an MBR membrane pond. Background MBR (Membrane bioreactor) takes a membrane as a carrier, and entraps pollutants and impurities in sewage by combining biological reaction (action) and physical separation. The membrane pore diameter becomes smaller or is blocked due to the adsorption of the pollutants and impurities such as sludge flocs, colloid particles, soluble organic matters or inorganic salts and the like which are trapped after the MBR runs for a period of time on the surface of the membrane, so that the membrane flux is reduced or the transmembrane pressure difference is increased. The membrane is usually delayed from fouling by adding sodium hypochlorite for online backwashing or adding sodium hydroxide for offline cleaning. Cleaning has a positive effect on the pollution relief of the membrane, but a large amount of foam can be generated in dosing, and the foam is not easy to eliminate and break, and possibly because active substances such as surfactant or bio-generated extracellular polymers exist in the MBR membrane tank, the aggregation of gas in the wastewater is aggravated under alkaline environment, and the foam is formed. The foam generation affects the operation of the MBR system, so that the biochemical treatment efficiency is reduced, and the COD and SS indexes of the effluent are possibly increased. Therefore, how to eliminate the foam in the MBR membrane tank is a technical problem to be solved. Disclosure of utility model The utility model aims at improving the problems in the prior art, namely the technical problem to be solved by the utility model is to provide the MBR membrane tank spraying defoaming device which is reasonable in design and convenient for effectively eliminating foam in the MBR membrane tank. In order to achieve the above purpose, the MBR membrane pond spray defoaming device comprises a support frame arranged above a pond opening of the MBR membrane pond, wherein a plurality of spray pipes are arranged in the support frame at intervals along the length direction of the MBR membrane pond, the spray pipes extend along the width direction of the MBR membrane pond, a plurality of water outlet holes are formed in the bottom of the spray pipes at intervals along the length direction of the spray pipes, and water in the spray pipes is conveniently dripped into the MBR membrane pond through the water outlet holes. Further, the inside of braced frame is equipped with the water runner, and many shower are linked together with the inside water runner of braced frame, be connected with the inlet tube on the braced frame, the inlet tube is used for the input running water. Further, the support frame comprises a pair of front and rear distributed transverse pipelines, the transverse pipelines extend along the length direction of the MBR membrane tank, a longitudinal pipeline is connected between the left ends of the pair of transverse pipelines, the longitudinal pipeline extends along the width direction of the MBR membrane tank, the longitudinal pipeline is communicated with the pair of transverse pipelines, and a water flow channel is formed between the pair of transverse pipelines and the interior of the longitudinal pipeline. Further, the left end of the transverse pipeline positioned at the rear side is connected with a first water inlet pipe, the first water inlet pipe corresponds to the position of the spray pipe positioned at the leftmost side, the right end of the transverse pipeline positioned at the front side is connected with a second water inlet pipe, and the second water inlet pipe corresponds to the position of the spray pipe positioned at the rightmost side. Further, a pair of transverse pipelines are respectively connected with guardrails on the front side and the rear side of the MBR membrane tank through connecting pieces. Further, the connecting piece comprises a hanging rod and a pipe buckle sleeved on the outer side of the transverse pipeline, a hook part used for being hung on the guardrail is arranged at the upper end of the hanging rod, a first locking bolt used for propping against the guardrail is connected to the side wall of the hook part in a threaded mode, and the pipe buckle is fixedly connected with the lower end of the hanging rod through an L-shaped connecting rod. Further, the pipe buckle comprises an upper pressing plate and a lower pressing plate which are arranged up and down downwards, the upper pressing plate and the lower pressing plate are in semicircular arc shapes, one ends of the upper pressing plate and the lower pressing plate are hinged, the other ends of the upper pressing plate and the lower pressing plate are locked with nuts in a matched mode through connecting bolts, and the lower pressing plate is connected with an L-shaped connecting rod. Further, the left end and the right end of the transverse pipeline are su