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Half Coil Tube Heating Reaction Kettle: Advantages of Stainless Steel Reactors from China Suppliers and Factory
Description
Compared with the commonly used jacket reactor in China, the outer half tube heating stainless steel reactor has many advantages.
1
Reduced Wall Thickness
Reduces the overall wall thickness of the kettle while effectively improving its load-bearing capacity.
2
Enhanced Heat Transfer
Beneficial for improving heat transfer efficiency. It can both improve the heating system and reduce thermal resistance.
3
Energy & Investment Savings
Saves energy consumption. The ratio of jacket volume to half pipe volume is optimized to reduce investment. Reducing the overall diameter of the reactor body is also beneficial for workshop layout.
4
Steel Conservation
Optimized structure design significantly saves steel materials during manufacturing.
The operating temperature of the reaction kettle is relatively high, and usually chemical reactions can only be carried out under certain temperature conditions, so the reaction kettle bears both pressure and temperature. There are usually several methods to obtain high temperatures:
W
Water Heating
When water heating requires a low temperature, it can be used. There are two types of heating systems: open and closed. The open type is relatively simple, consisting of a circulating pump, water tank, pipeline, and a regulator that controls the valve. When using high-pressure water, high mechanical strength is required for the equipment. The outer surface of the reactor is welded with a snake tube, which has a gap between the snake tube and the reactor wall, increasing thermal resistance and reducing heat transfer efficiency.
S
Steam Heating
When the steam heating temperature is below 100 ℃, steam below atmospheric pressure can be used for heating; Within the range of 100-180 ℃, use saturated steam; When the temperature is high, high-pressure superheated steam can be used.
M
Other Media Heating
If the process requires operation at high temperatures or to avoid using high-pressure heating systems, other media can be used instead of water and steam, such as mineral oil (275-300 ℃), biphenyl ether mixture (boiling point 258 ℃), molten salt (140-540 ℃), liquid lead (melting point 327 ℃), etc.
E
Electric Heating
Electric heating wraps the resistance wire around the insulation layer of the reaction vessel or installs it on a specially designed insulator at a certain distance from the reaction vessel, thus creating a small spatial gap between the resistance wire and the reaction vessel. The first three methods of obtaining high temperature all require adding a jacket on the kettle body. Due to the large amplitude of temperature changes, the jacket and shell of the kettle are subjected to temperature changes, resulting in temperature difference pressure. When using electric heating, the equipment is lightweight and simple, the temperature is easy to adjust, and there is no need for pumps, furnaces, chimneys, and other facilities. It is also easy to start, with low danger and cost. However, the operating cost is higher than other heating methods, and the thermal efficiency is below 85%. Therefore, it is suitable for heating temperatures below 400 ℃ and places with lower electricity prices.
Specification
| Working Volume | Full Volume (L) | Vessel Diameter (mm) | External Coil Heat Transfer Area (m²) | Inner Coil Heat Transfer Area (m²) | Motor (kw) |
|---|---|---|---|---|---|
| 500L | 550 | 900 | 2.438 | 2 | 2.2 |
| 1000L | 1100 | 1100 | 2.867 | 2.6 | 4 |
| 1500L | 1650 | 1200 | 3.537 | 3.1 | 4 |
| 2000L | 2200 | 1300 | 4.165 | 3.8 | 5.5 |
| 3000L | 3300 | 1500 | 5.569 | 5.4 | 7.5 |
| 6000L | 6600 | 1800 | 10.323 | 8.7 | 15 |
| 10000L | 11000 | 2200 | 50.345 | 10.9 | 22 |
| 20000L | 22000 | 2400 | 101.679 | 13.8 | 55 |
Frequently Asked Questions (FAQ)
Q1:
What are the core advantages of an outer half tube heating reactor over a jacket reactor?
The outer half tube heating stainless steel reactor reduces the wall thickness of the kettle, improves its overall load-bearing capacity, enhances heat transfer efficiency by reducing thermal resistance, saves energy, and reduces overall steel consumption.
Q2:
How does water heating work in these reaction vessels?
Water heating is ideal for lower temperature requirements. It can be open or closed. The open system is simpler, utilizing a circulating pump, water tank, pipeline, and control valve. For high-pressure water systems, higher mechanical strength is required.
Q3:
What steam heating options are available for different temperature ranges?
For temperatures under 100 ℃, sub-atmospheric steam is used. Saturated steam is applied within the 100-180 ℃ range, while high-pressure superheated steam is utilized for higher temperature requirements.
Q4:
What alternative media can be used for high-temperature heating?
To avoid high-pressure heating systems at high temperatures, media such as mineral oil (275-300 ℃), biphenyl ether mixtures (boiling point 258 ℃), molten salt (140-540 ℃), or liquid lead (melting point 327 ℃) can be used.
Q5:
What are the pros and cons of using electric heating for reactors?
Electric heating is simple, lightweight, easy to regulate, requires no auxiliary facilities (like pumps or chimneys), and has low initial risks/costs. However, its operating costs are higher, and the thermal efficiency remains under 85%, making it best suited for temperatures below 400 ℃ in regions with low electricity rates.