Issues related to gas phase equilibrium in the installation of vertical condensers

The balance pipe should generally be installed at the lowest point of the condenser, so as to allow proper drainage of the condensate and to facilitate its return to the return tank. Installing it directly on the head of the condenser may pose problems, as this might not ensure effective drainage of the liquid and could also cause disruptions in the airflow within the pipes. It is recommended to design the balance tube at the bottom of the condensation area or near the liquid outlet, so as to ensure equilibrium between the gas phase and the liquid phase, while reducing pressure losses and the risk of poor backflow. .

First, it is necessary to understand the purpose of installing balance pipes. The principle is mainly to maintain a relatively constant liquid surface pressure as the liquid level drops. The equilibrium point must be determined before the opening point can be set. It would be best to include a schematic diagram for easier discussion and reference.

The balance tube is not installed on vertical condensers; it can be placed where the gas phase of the reflux tank is connected to the vacuum line/gas phase outlet

Sure, isn’t it more convenient to have it mounted on the tube?

New layout pictures have been posted; please ask the experts to take a look, thank you :)

During the installation of the vertical condenser in a distillation tower, the installation of the gas-phase equilibrium tube is crucial for ensuring the efficient operation of the condenser and the stability of the system. Here are some suggestions regarding the installation of vapor balance pipes: Function of vapor balance pipes: Vapor balance pipes are primarily used to maintain stable pressure in the gas phase space inside the condenser, thereby preventing operational instability and safety issues caused by pressure fluctuations. Installation location: The vapor equilibrium tube is usually installed at the top or side of the condenser, depending on the design of the condenser and the requirements of the system. For vertical condensers, balance tubes are generally installed at the top of the condenser to ensure effective pressure balancing in the gas phase space. The balance tube should be placed in a location where the gas phase is relatively stable and not easily disturbed by liquid. Installing it directly on the head of the condenser is usually a viable option, but the following points should be taken into consideration: ensure that the structural strength of the upper head is sufficient to withstand the stresses and vibrations that may occur during the connection of the balance tubes and during operation. Check the material and sealing performance at the upper head to ensure no leakage occurs after it is connected to the balance tube. If possible, it is recommended to install appropriate brackets or support structures at the upper head to reduce stress and vibration at the balance tube connections. Balance pipe between the reflux tank and the condenser: The balance pipe between the reflux tank and the condenser is used to equalize the vapor pressure between the two, ensuring that the liquid in the condenser can flow smoothly into the reflux tank, while preventing gas from the reflux tank from flowing back into the condenser. This balance tube should be installed in an appropriate location on the condenser to ensure it can effectively balance the pressure between the two. Typically, a balance tube can be connected near the gas-phase outlet of the condenser to respond promptly to pressure changes. The diameter and length of the balance tube should be designed and selected based on the specific requirements of the system, to ensure that it can effectively balance pressures and prevent blockages or leaks. Installation notes: When installing the vapor equilibrium tube and the equilibrium tube between the reflux tank and the condenser, it is necessary to ensure that all connections are tight and secure to prevent leaks. Check that the material and specifications of all pipes and connectors meet the system requirements, to ensure they can withstand the pressures and temperatures during operation. During installation, relevant safety standards and procedures must be followed to ensure the safety of the staff. In summary, the installation locations of the vapor equilibrium tube and the equilibrium tube between the reflux tank and the condenser should be determined based on the specific requirements of the system and the design of the condenser. During installation, it is necessary to ensure that all connections are tight and secure, and to follow the relevant safety regulations and procedures.

At the gas-phase outlet of the condenser, above the liquid level in the liquid seal tube, the insertion port should point downward, or the outlet pipe should first point upward before connecting to the buffer tank; efforts should be made to prevent liquid from flowing through the balance tube.

Open it above; if left unattended, air will leak in. Open above the head. It’s okay if it’s not turned on, but the return pipe must remain unobstructed, and the pressure should be lower than the tower pressure