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Full stainless steel double cooler
Full stainless steel double cooler
Product details
Introduction to tubular cooler
The tubular double cooler consists of two oil coolers with the same area and a three-way valve device, one working and the other standby. Each cooler can support the entire system
Unified cooling load, with one end of the tube plate fixed and the other end floating, detachable tube bundle and water chamber cover for easy cleaning, inspection, and maintenance during operation.
The material of the cooler can be selected from various options based on the usage location and water system conditions. The materials include all stainless steel, stainless steel carbon steel combination, carbon steel and copper combination, etc.
Characteristics of tubular cooler
1. The tubular cooler adopts a bare tube (with no rolled fins on the surface) heat transfer tube, which has a high heat transfer coefficient of the outer film and strong anti pollution ability.
2. The cooling pipes of the tubular cooler are made of high-quality copper tubes and processed into fin shaped heat dissipation fins. The product has a small volume and a large heat exchange area.
3. The spiral guide plate of the tubular cooler enables the cooled liquid to roll continuously and uniformly in a spiral shape, overcoming the cold and heat generated by the baffle plate
Exchange efficiency.
4. The tubular cooler adopts an expansion tube sealing method, which overcomes the adverse changes caused by high-temperature welding of the material.
5. The tubular cooler has good structural performance, stable sealing performance, high heat transfer efficiency, compact structure, and small footprint.
Application of tubular cooler
Tube type coolers are widely used in thin oil lubrication systems and other industrial sectors such as metallurgy, mining, cement, power, light industry, food, chemical, and papermaking
Used in hydraulic systems to cool lubricating oil, hydraulic oil, and other industries.
Cleaning of scale in tubular coolers
Cleaning of tubular cooler: 1. Physical cleaning method: Fixed tube plate can be washed with a water pump brush. If it is a core pulling or floating head type, it can be cleaned
Pull out the tube bundle and rinse it; 2. Chemical cleaning: When the scale changes from loose to dense and hard, mechanical cleaning methods are no longer effective in removing the scale
At this time, it is advisable to use acid washing method. Hydrochloric acid can easily dissolve calcium carbonate and magnesium carbonate scale without preheating, so the pickling solution is generally a room temperature salt
Acid solution. Although acid washing can effectively loosen scale and restore the normal state of the cooler surface, hydrochloric acid has a corrosive effect on the cooling copper pipes. In order to protect
The wall of the cooling tube is not corroded by hydrochloric acid, and additives must be added to the pickling solution, which strongly delay the metal dissolution process. We choose
The additive used is benzotriazole, also known as BC-801 water stabilizer, with a concentration of about 3%. Based on experience, if mechanical cleaning can be carried out on time, acid
Wash can be done once every 2-3a; On the contrary, acid washing needs to be carried out once a year.
Installation method
The installation methods of coolers are divided into vertical oil coolers and horizontal oil coolers. Vertical coolers have the characteristics of small installation area and easy installation. Horizontal oil coolers have the characteristics of low pressure drop and strong resistance to water impact. Therefore, selecting vertical or horizontal oil coolers correctly according to different site, space height, and performance requirements can better meet the needs of generator sets and other equipment.
(1) After passing the pressure test of the cooler, it can be put into use, and the front row should store all the water inside.
(2) Check whether each pouring and venting valve is flexible and functional, and whether the switch position is correct. Also, ensure that all pressure gauges and thermometers are installed properly.
(3) Check whether the foundation and support are firm, and whether all bolts are fully fastened and tightened.
(4) When put into use, first add cold flow, then add hot flow.
(5) When using cold or hot media, first ensure that the secondary line is unobstructed, then slowly open the inlet valve. After checking that there are no problems, open the inlet valve slowly to prevent pressure build-up. During the commissioning process, attention should be paid to observing changes in the equipment. After the cooler is put into use, leakage may occur with changes in temperature and pressure, and it should be checked in a timely manner.
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