What equipment can be used to heat water vapor to 250 degrees?
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What equipment can be used to heat water vapor to 250 degrees? We are using it in a laboratory; it’s a very small device, and it would be best if it were already available. Manufacturers aren’t willing to produce devices of such a small size – please help us find a solution! ! ! This post was last edited by muquan on 2009-2-12 20:48.]
You can make your own pressure cooker by using seamless tubes to install an outlet valve, a water inlet valve, a safety valve, a pressure gauge, a thermometer, and other accessories; then place it on an electric stove to heat it. The pressure rating can be designed at 100 kilograms. It’s not very difficult; it’s best to ask the person in charge of the equipment to create a simple diagram.
The method suggested by my friend from the steam room is quite good, and it also ensures safety. To superheat the steam, an element for adjusting the current can be added to the electric heater used for superheating; some power cords already come equipped with such a feature. This allows the temperature to be controlled. It’s best to use a fixed bracket with a cover, or to install it entirely inside a sealed high-temperature enclosure. If 250 degrees is sufficient, a constant-temperature silicone oil bath can also be used by immersing the coil in it. The pressure rating cannot reach over 100 kilograms; at slightly higher pressures, the pressure cooker releases pressure. It must be steam with very low pressure that is superheated to that temperature. Therefore, the diameter of the pipeline design must be sufficient; otherwise, pressure buildup will occur. Last edited by RainWolf on 2009-2-12 22:11]
We would like to buy ready-made equipment; could you provide some information?
The existing equipment should be sufficient. Search for “electric heating steam generator”; there are small ones available. However, the steam for these devices needs to be superheated, requiring a separate heater. For example, regarding boilers, check out this link: http://www.54pc.com/Shop/midwest/26760/ProShow.html. There are 3.5KW electric heaters available. You can also inquire about them at: http://www.atobo.com/CN/ProductInfo/1/224809.html (use \"electric heater\" as the search keyword). I’m not trying to promote anything; if this violates any rules, let me know and I’ll remove it immediately. This post was last edited by RainWolf on 2009-2-12 at 21:24
There should be autoclaves available for laboratory use; search online and make sure the material is heat-resistant!
It can also be made at home: first, steam is generated, and then the steam is heated to the desired temperature using a heating furnace, such as a tubular furnace! !
Steam heat exchangers can achieve the desired temperature by utilizing plant auxiliary steam
Actually, this calculation is quite simple. First, the temperature is known; however, it’s not clear what requirements exist regarding the amount of steam and its pressure. So, it’s necessary to determine these basic parameters first. After that, materials can be selected based on temperature and pressure – it’s sufficient to use a material of a slightly higher grade, which will also be more cost-effective. Another point is to determine the heating method – whether it will be heating by fuel combustion, electric heating, or some other method. If you want ready-made equipment, just contact any heater manufacturer to get a quote.
It seems that the original poster didn’t clarify their requirements regarding stress; it’s not clear whether the reaction medium in the device that uses steam needs to be in a state of phase equilibrium, or whether it should contain an aqueous phase or other media with relatively low boiling points. If it contains a water phase in equilibrium or other low-boiling-point liquid phases, the temperature in that device will reach 250 degrees, resulting in very high pressure; or the pressure may not be high, but the temperature will not reach that level. Most small boilers available on the market are of low pressure; if the pressure is high, the steam generated cannot be delivered.
The specific parameters are not fixed; the saturated steam pressure at 250 degrees is 4.0 MPa. Ordinary small boiler manufacturers are not capable of achieving such high pressures, as large boiler manufacturers don’t deal with small-scale equipment! If you have superheated steam, you might want to give it a consideration!