Spiral plate heat exchangerIt is an efficient heat exchanger equipment that is suitable for steam steam, steam liquid, and liquid-liquid heat transfer. It is suitable for chemistry and petroleumIndustries such as solvents, pharmaceuticals, food, light industry, textiles, metallurgy, steel rolling, coking, etc. According to the structural form, it can be divided into non detachable type (Type I)Spiral plate and detachable (Type II, Type III) spiral plate heat exchangers.

spiral-plate heat exchangerThrough years of practical use, it has been proven to be an efficient stainless steel heat exchanger, suitable for use in chemistry, petroleum, solvents, and medicineApplied in industries such as medicine, food, light industry, textile, metallurgy, steel rolling, coking, etc. The heat exchanger draws on contemporary international advanced technology and has unique advantagesLiquid liquid and vapor water heat exchangers designed and manufactured by chemical engineering. The product structure and process are in accordance with the standards of the Swedish company "Alfarada", and the spiral plate end face is made ofThe folded edge argon arc welding and the "top distance column" special process for capacitor storage contactors have improved the quality of both the inner and outer surfaces, and have been recognized by BaosteelReplace imports.

The non detachable spiral plate heat exchanger is designed according to the JB/TQ724-89 standard of the Ministry of Machinery, which specifies the basic parameters and dimensions of the non detachable spiral plate heat exchangerDesigned specifically for this purpose, it has the advantages of simple manufacturing, low cost, small size, and good heat transfer performance. However, it also has its shortcomings, such asMechanical cleaning cannot be carried out, and if damaged, it is difficult to maintain. The user should select specific equipment based on the actual situation of the project to make it the most effective.

Spiral plate heat exchangerStructure and performance:

1. This device is suitable for: liquid-liquid, gas gas, gas-liquid convective heat transfer. It can be used for steam condensation and liquid evaporation heat transfer in chemical, petroleum, pharmaceutical industriesIndustrial sectors such as machinery, electricity, light industry, and textiles can all be selected.

2. This device is made up of two steel plates rolled together, forming two uniform spiral channels. The two types of heat transfer cut-off can perform full counter current flow and are suitable forSmall temperature difference heat transfer facilitates the recovery of low-temperature heat sources and accurately controls the outlet temperature.

3. The connection on the shell is a tangential structure with low local resistance. The curvature of the spiral channel is uniform, and there is no significant flow of fluid inside the equipmentSwitching direction results in low overall resistance, thus increasing the design flow rate and enhancing its heat transfer capacity.

4. The end face of the spiral channel is welded and sealed, with good sealing performance and reliable structure.

5. Not easy to maintain, especially when there are problems with the internal panels, it is extremely difficult to repair. Some factories remove all the welds on both ends of the equipment and flatten and repair the panelsRolling after welding consumes too much time, so it is very important to use spiral plate heat exchangers for corrosion prevention.

6. Mechanical cleaning cannot be carried out. Production practice has proven that spiral plate heat exchangers are less prone to clogging compared to general tubular heat exchangers, especiallyIt is difficult for suspended particles such as sediment and small shells to deposit in the spiral channel. Analyze the reasons for this; One reason is that it is a single channel impurity in the channelOnce the sedimentation inside forms a turnover flow, it will increase to the point where it will be washed away. Secondly, because there are no dead corners in the spiral channel, impurities are easily washed out.

7. Because there are fixed distance columns supporting the spacing between the spiral channels, no fibrous impurities (such as cotton yarn, grass sticks, leaves, etc.) are allowed to enter the heat exchange channelInside the device.

8. Strictly control the outlet temperature of the cooling water below the scaling temperature.

9. The commonly used cleaning methods are steam blowing or alkali washing. Steam blowing should be directed towards the connecting pipe to blow out impurities from the equipment. Many manufacturers believe thatThis is an effective method.

Detachable (Type II, Type III) spiral plate heat exchanger

The structural principle is basically the same as that of a non detachable heat exchanger, but the channels can be disassembled for cleaning and sealed with heads at both ends. Especially suitable for those with stickiness andLiquid to liquid exchange of precipitated liquids, as well as gas-liquid and vapor condensation. Due to the need to add components such as heads and flanges to detachable heat exchangers, the equipment has becomeThis is slightly larger than a non detachable heat exchanger.

Basic parameters

Spiral plate heat exchangerThe nominal pressure PN is specified as 0.6, 1, 1.6, 2.5 Mpa (i.e. original 6, 10, 16, 25 kg/cm2) (referring to single channel)The test pressure is 1.25 times the maximum working pressure.

Spiral plateheat exchangerThe material of the part in contact with the medium is Q235A carbon steel Q235AF， Stainless steel acid steel is SUS321 SUS304。 itsIts material can be selected according to user requirements.

Allowable working temperature: t=0~+350 ℃ for carbon steel, t=-40~500 ℃ for stainless steel acid steel, with temperature and pressure ranges depending on the pressure vesselregulations. When selecting this equipment, appropriate process calculations should be carried out to achieve turbulent flow in the fluid channel of the equipment. (Typical liquid flow rate)1m/Sec gas flow rate 10m/Sec).

A single device cannot meet the usage requirements, and multiple devices can be combined for use, but the combination must comply with the following regulations:

Parallel combination, series combination: equipment and channel spacing are the same.
Mixed combination: one channel in parallel and one channel in series.

Stainless acid resistant steel PN0.6, 1.6MPa non detachable (Type I) spiral plate heat exchanger.