CN2341985Y

CN2341985Y - Film type aeration head for waste water treatment

Info

Publication number: CN2341985Y
Application number: CN98238846U
Authority: CN
Inventors: 陈世钟; 仉玉梅
Original assignee: 刘桂琴
Priority date: 1998-09-17
Filing date: 1998-09-17
Publication date: 1999-10-06
Anticipated expiration: 2008-09-17

Abstract

The utility model relates to a film type aeration head for waste water treatment, comprising a tray with an air inlet port, which is characterized in that the circumference side of a dish-shaped rubber diaphragm sheet is fixedly connected with the tray, and the diaphragm sheet is provided with a micropore. The utility model has the advantages that as a specific micropore is designed and the rubber diaphragm sheet is adopted, the open and close of a pore shape can be regulated automatically as the size of the air flow in working, the air out flow is less, in water, oxygen molecule has large decomposition amount, and thus, the utility model has high utilization rate and uniform gas distribution, causing the bearing amount of a biological carrier to be enlarged, filth articles have no obstruction. The utility model has low cost, easy management and good performance.

Description

Sewage disposal membrane type aeration head

The utility model belongs to a kind of vitals of waste disposal plant, and it is the sewage disposal membrane type aeration head in the biological tank in the municipal sewage treatment flow process.

In the later stage biological tank of present sewage disposal flow process, deviate from the microorganism in the sewage as far as possible, it is to fill in sewage with air by aeration head, produce micro-bubble during promptly by the dispensing of the micropore of aeration head in water, resulting oxygen amount concentrates at microorganism and realizes on the bio-carrier in the water.Porcelain dish aeration head and steel cylinder aeration head are mainly adopted in sewage disposal at present.Because the size of the micropore on the aeration head is fixing, can not change with working order, thereby it is constant to go out airshed, limited at the decomposition amount of water oxygen molecule, the utilization ratio of oxygen is not enough, and simultaneously, micropore is easily blocked by dirt, and influence is given vent to anger, and reduces use properties.

The purpose of this utility model provides a kind of sewage disposal membrane type aeration head, and microorganism is increased at the loading capacity of bio-carrier, and micropore can change with working order, and it is trickle to go out airshed, big in water oxygen molecular breakdown amount, the utilization ratio height of oxygen, and gas distribution is even.

The purpose of this utility model is achieved in that it comprises the pallet of bringing pore into, and its technical scheme main points are: dish type rubber diaphragm circumferential edge is fixed on the pallet, and micropore is set on the diaphragm.

Above-mentioned diaphragm-operated micropore air inlet face end is the slit shape, and the face end of giving vent to anger is the micropore shape, and the centre is a transition section.

The utility model has the advantages that: because special micropore of design and employing rubber diaphragm, along with the size of tolerance, pass is opened, is closed voluntarily and regulates in the work, and it is trickle to go out airshed, big in water oxygen molecular breakdown amount, so the utilization ratio height of oxygen, gas distribution is even, and the loading capacity of bio-carrier is increased, dirt does not block, cost is low, good management, and performance is good.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the diagrammatic cross-section of micropore on the rubber diaphragm.

Fig. 4 is the rubber diaphragm view of air admission aeration head.

See Fig. 1-4, concrete structure is as follows: there is centre hole at the middle part of the pallet 1 of plastics, the dish type rubber diaphragm is connected with screw rod 3 below 2 middle parts, the screw rod activity is installed on the centre hole of pallet 1, the screw rod lower end is screwed stop nut 6, assembling spring 5 makes rubber diaphragm 2 be close to the upper surface of pallet 1 under no gas situation between stop nut 6 and the pallet 1.The circumferential edge of dish type rubber diaphragm 2 is fixed on the pallet 1 by stainless steel sealing ring 7.Have the micropore 8 of annular spread on the rubber diaphragm 2, micropore air inlet face end 10 is the slit shape, and the face end 9 of giving vent to anger is the micropore shape, and the centre is a transition section.Pallet 1 centre hole side has air inlet port 4.Principle of work: when inflating in sewage, gas enters between rubber diaphragm 2 and the pallet 1 through the air inlet port of pallet 1, and gas swells rubber diaphragm 2, and discharges by micropore 8, forms micro bubble in water, strengthens the oxygen molecule decomposition amount.

Claims

1, a kind of sewage disposal membrane type aeration head, it comprises the pallet of bringing pore into, it is characterized in that: dish type rubber diaphragm circumferential edge is fixed on the pallet, and micropore is set on the diaphragm.

2, sewage disposal membrane type aeration head according to claim 1 is characterized in that: diaphragm-operated micropore air inlet face end is the slit shape, and the face end of giving vent to anger is the micropore shape, and the centre is a transition section.