Aeration hose
Aeration hose is a new kind of aerator developed efficiently by using introducing West German technology. Thin wall and straight passage appreciably minimize the loss of aeration resistance; Automatic opening and closing of variable holes and slits definitely solves the hassle of aerator blockage; The hose is linear aeration, which makes the air distribution uniform and varieties a vertical circulation, so that the mixing is extra uniform; Small bubbles, high oxygen utilization and energy efficiency.
The aerated hose is made of reinforced PVC and rubber, lined with chemical fiber mesh, which is acid resistant, corrosion resistant and high pressure resistance.
Variable hole shape and layout of aeration hose.
The variable hole is in the form of slit. When it is not aerated, the length is 2 mm, the longitudinal spacing of the slit is 8 mm, the transverse spacing is 62.5 mm, and the slit layout is star shape. When the hose is aerated, the inner wall diameter is 62.5mm, and the number of air holes is 3600/m, Compressive strength 2kg/cm2, aeration rate 0-15m3/h. m There are pores on the surface of the circumference of the hose, which can aerate and produce medium and micro bubbles in the water. The bubbles rise slowly, distribute evenly, and have high oxygen utilization rate. The hose swells during aeration and is compressed by hydrostatic pressure when it is not aerated, thus avoiding sludge backflow to a certain extent. The wall thickness of the hose is only 2mm, the air passage is short and straight, and the pressure loss is small. The stomata are long and narrow slits with variable width in a certain range. The inner surface of the hose is very smooth, and it is not easy to fix the biofilm. Without air filtration equipment, aeration can be stopped at any time, and the time of stopping aeration is not blocked no matter how long. It is easy to assemble and requires low installation flatness. The gas transmission pipe and aeration pipe at the bottom of the tank are combined into one without additional pipeline equipment, and the price is lower than that of other microporous aerators. Good acid and alkali resistance. It can be crimped and packaged, with small volume and convenient packaging and transportation.
Product use
Variable hole aeration hose can be widely used in petrochemical, textile, food, paper making, printing and dyeing, brewing Biochemical treatment of industrial wastewater from manufacturing, pharmaceutical, tanning and urban domestic wastewater.
2. When the efficiency of the aerator that has been operated is low or blocked frequently, the variable-hole aerator hose can be used to improve the oxygen enrichment capacity and mixing effect.
3. It is also used to increase oxygen in recirculating water of aquaculture, high-density aquaculture system and common fish pond.
4. It is used for pre-aeration of sewage regulating tank to prevent the deposition of large particles of sediment and remove some organic matters.
Performance characteristics
It is easy to assemble and requires low installation flatness. The gas transmission pipe and aeration pipe at the bottom of the tank are combined without additional pipeline equipment.
It can be crimped and packaged, with small volume and low transportation cost.
Simple installation, low installation cost and no potential gas leakage.
The hose swells when aerated, and is compressed when not aerated. When compressed, the variable micropores are closed, so no matter how long the aeration is stopped, it will not be blocked.
Acid and alkali corrosion resistance, no aging, no tearing, long service life.
The wall thickness of the hose is only 2mm, the air passage is short and straight, the air pressure loss is small, the inner and outer surfaces of the hose are smooth, and there is no biofilm attached.
The oxygen utilization rate is high, the price is lower than other aerators, and the performance-price ratio is high.
The air source has no special requirements and does not need air filtration equipment.
There are pores on the peripheral diameter surface of the hose, which can aerate, and produce medium and micro bubbles in the water. The bubbles rise slowly, distribute evenly, and have high oxygen utilization rate. The pores are narrow and long slits, and the width is variable within a certain range.
It overcomes the defect of poor stability of other aerators and has no worries.
erection sequence
Review the installation construction drawings;
2. Check whether the size of on-site pool is consistent with the construction drawing;
3. According to the site conditions and drawings, locate the main intake pipe first;
4. Set out at the position where the aeration hose is installed;
5. Punch according to the line, specification: Φ 12 * 40mm, with a spacing of 500mm, insert the galvanized inner expansion bolt, keep the height consistent, hit the inner expansion core, and expand the inner expansion The bolt is fixed;
6. Insert the stainless steel screw rod into the galvanized inner expansion bolt, screw it to the bottom and fasten it;
7. Adjust the opening direction of the plastic ring of the aeration hose bracket to keep consistent with the length direction of the aeration hose, and then tighten the lower nut of the plastic ring;
8. Open the upper part of the plastic ring;
9. Connect one end of the aeration hose connector and fasten it with two hose clamps. After completion, pull the aeration hose from the top of the bracket to the other end of the aeration hose connector, tighten it, and fasten it with two hose clamps at the connector. (If only one end of the air inlet, connect a DN50 ABS pipe with a blind cover at the end of the aeration hose and fasten it.)
10. Close the upper part of the plastic ring and fasten it. The aeration hose is installed, and other aeration hoses are installed and so on.
Precautions:
(1) The inner expansion bolt hole shall not be too deep. It is better to control it at 40mm and strictly prevent dust from entering, otherwise it will directly affect the installation of stainless steel screw rod; (2) The aeration hose must not be twisted, and must be leveled and straightened; (3) . When tightening the plastic ring, strict attention must be paid not to dislocation, otherwise it is easy to produce sharp corners, which may cause abrasion to the aeration hose; (4) It is recommended to install a blowdown vent pipe and a blowdown valve at the main intake pipe to ensure the lasting, reliable and stable operation of the aeration system.