The cooling methods of the hydraulic system mainly include water-cooled, air-cooled and cooled. But how do these cooling methods are embodied? Dalan Hydraulics tells you.
The cooling methods of the hydraulic system mainly include water-cooled, air-cooled and cooled. But how do these cooling methods are embodied? Dalan Hydraulics tells you.

1. Water cooling type includes tube type and corrugated board type

1 tube type

a. The cooling water flows through the tube, the oil flows between the tubes, the middle folding plate makes the oil flow, and the two-way or four-way flow mode is adopted to enhance the cooling effect, the heat dissipation effect is good, and the heat dissipation series can reach 350-580W. /(m2·°C).

b. There are mainly fixed folding type, floating head type, double tube type, U-shaped tube type, vertical type, horizontal type and the like.

2 corrugated plate

a. Using the plate type herringbone or oblique corrugated structure to superimpose the contact points formed by the arrangement, so that the liquid flow can form turbulent flow under the condition that the flow rate is not high, the heat dissipation effect is improved, the heat dissipation effect is good, and the heat dissipation coefficient can reach 230-815 W/(m2· °C).

b. Mainly human-word corrugated, oblique corrugated, etc.

2, wind cooling

1 Wind cooling oil, simple structure, small volume, light weight, small thermal resistance, large heat exchange area, convenient use and installation, high heat dissipation efficiency, oil heat dissipation coefficient can reach 116-175W/(m2·°C).

2 mainly indirect, fixed, floating, support, hanging and so on.

3, refrigeration

1Using the Freon refrigeration principle to absorb and discharge the heat in the hydraulic oil, the cooling effect is good, and the cooling temperature control is convenient.

2 Mechanical refrigeration type mainly has box type and cabinet type.








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Poly aluminium chloride (PAC) is a new type high efficiency inorganic polymer coagulant, adopting advanced manufacturing technique and quality raw material, show the features of low impurity, high molecula weight, and superior coagulating effect. 

 

I. Poly Aluminium Chloride Properties

1. Its dosage lower than aluminum sulfate (based on Al2O3) and water treatment cost is lower than other inorganic flocculants. 
2. The product can cause quick formation of flocs, big flocs formation and rapid precipitation. Its treatment capacity is 1.3-3.0 times of other inorganic flocculants. 
3. It enjoys wide-range adaptability for different-temperature source water and a good solubility. 
4. It is slightly corrosive and easy for operation. 
5. The liquid product is suitable for automatic dosing. Furthermore, it will not block pipes over long-time usage.

 

 

II. Description

 

 

III. Poly Aluminium Chloride Application:

 

1. Its purifying effect on low-temperature, low-turbidity and heavily organic-polluted raw water is much better than other organic flocculant, furthermore, the treatment cost is lowered by 20%-80%.

2. It can lead to quick formation of flocculant (especially at low temperature) with big size and rapid precipitation service life of cellular filter of sedimentation basin.

3. It can adapt to a wide range of pH value (5−9), and can reduce the pH value and basicity after processing.

4. The dosage is smaller than that of other flocculants. It has wide adaptability to the waters at different temperatures and at different regions.

5. Higher basicity, lower corrosive, easy for operation, and long-term use of non-occlusion. 

 

Poly Aluminium Chloride

Poly Aluminium Chloride,PAC 30% Poly Aluminum Chloride,28% Oly Aluminium Chloride,Yellow Poly Aluminium Chloride

Shandong Tiancheng Chemical Co., Ltd. , https://www.akdchemical.nl