Variable orifice aeration hose

Price:Negotiable

Industry Category:	Food & Beverage
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宜興市填料廠

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Add:宜興市和橋鎮(zhèn)南新街德勝路5號, Zip: 214215
Contact: 王經(jīng)理
Tel:0510-87871818
Email:info@yixing-china.com

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Yixing Hexagonal H

Description

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Product Features

(Utility Model Patent for Aeration Hose Bracket: ZL 2008 2 0300465.9)

·1. This product is a flexible tubular aerator made from chemically enhanced modified plastic;

·2. The entire circumference of the hose has pores for aeration, producing medium and fine bubbles in water. The bubbles rise slowly, ensuring uniform air distribution and high oxygen utilization rate;

·3. The hose expands during aeration and flattens under hydrostatic pressure when not in use, which helps prevent sludge backflow to some extent;

·4. The hose wall thickness is only 2mm, with short and straight air channels, resulting in minimal air pressure loss;

·5. The pores are narrow, elongated slits with variable width within a certain range;

·6. The inner surface of the hose is smooth, making it resistant to biofilm attachment;

·7. No air filtration equipment is required. Aeration can be stopped at any time, and the hose will not clog regardless of the duration of stoppage;

·8. Easy assembly with low flatness requirements for installation. The air supply pipe and aeration hose are integrated at the bottom of the tank, eliminating the need for additional piping equipment. The cost is lower compared to other microporous aerators;

·9. Excellent resistance to acids and alkalis;

·10. Can be coiled for packaging, resulting in small volume and convenient packaging and transportation.

>Design Reference

·1. Recommended technical parameters: aeration rate 5m3/m·h, oxygen utilization rate 12%;

·2. The hose should generally be placed 200-300mm above the tank bottom, with a spacing of 500mm between hoses. Adjustments can be made based on water quality, removal load, and oxygen demand;

·3. Within a certain range, multiple aeration hoses (generally no more than 10) can be connected to the same air distribution pipe as a group, controlled by one valve. To ensure uniform air supply to all hoses in the group, consider appropriately enlarging the diameter of the air distribution pipe;

·4. When using aeration hoses in activated sludge processes, especially in Sequencing Batch Reactor (SBR) systems, it is recommended to include sludge discharge measures in the design to allow for sludge removal from the pipes when necessary.

>Product Specifications

Specification	Pore Density (pcs/m)	Water Depth (m)	Aeration Rate (m3/m·h)	Service Area (m2/m)	Hose Pressure Strength (kg/cm2)	Oxygen Utilization Rate (%)	Resistance Loss (m water column)	Oxygenation Efficiency (kgO?/kW·h)
?65	5060	1-5	0-8	0.5-1	1	10-16	0.36-0.5	1.56-11.47

>Packaging Standard

·1. Carton packaging;

·2. Packaging dimensions: 800×480×120mm;

3. Unit weight: 30kg/pack, 50m/pack.

>Installation Procedure

·1. Review installation construction drawings;

·2. Verify that the on-site tank dimensions match the construction drawings;

·3. Based on the site conditions and drawings, first position the main air supply pipe;

·4. Mark the installation lines for the aeration hoses;

·5. Drill holes along the lines: specification ?12×40mm, spacing 500mm. Insert zinc-plated expansion bolts, ensure uniform height, drive in the expansion cores to secure the bolts;

·6. Insert stainless steel threaded rods into the zinc-plated expansion bolts, screw them in fully and tighten;

·7. Adjust the opening direction of the plastic rings on the aeration hose brackets to align with the length direction of the hose. After adjustment, tighten the lower nuts of the plastic rings;

·8. Open the upper half of the plastic rings;

·9. Connect one end of the aeration hose joint and secure it with two hose clamps. Then, pull the aeration hose from above the bracket toward the other end of the joint, tighten it, and secure the joint with two hose clamps. (If only one end is for air intake, connect a DN50 ABS pipe with a blind cap to the end of the aeration hose and secure it.)

·10. Close the upper half of the plastic rings and tighten them. The aeration hose installation is complete. Other hoses are installed in the same manner.

·11. Precautions:

o (1) Do not drill expansion bolt holes too deep; 40mm is ideal. Strictly prevent dust from entering, as it may affect the installation of stainless steel threaded rods;

o (2) Do not twist the aeration hose; it must be laid flat and straight;

o (3) When tightening the plastic rings, ensure there is no misalignment, as it may create sharp edges that could wear the aeration hose;

(4) It is recommended to install a sludge discharge and drain pipe at the main air supply pipe location, along with a drain valve, to ensure the aeration system operates reliably and stably over the long term.