Electric butterfly valve is a good way to deal with the balance of the air-conditioning water system. When the working pressure of the system changes, the constant pressure differential valve can use to change its total flow area to keep the pressure difference on both sides of the electric butterfly valve consistent, so that the adjustment The CV value of the valve is one from beginning to end, thus ensuring that the electric butterfly valve has been operating under the most ideal conditions. The real change in water volume is only related to the temperature and not to the working pressure, which can ensure that the water entering the air conditioning unit is the amount of water you need at any given moment. The characteristics of the cluster and the system are better, and the maintenance is more convenient. Applying the automatic constant pressure differential valve and electric butterfly valve at the end of the system can save a lot of static balance valves used in hierarchical operation, so it can make the system characteristics better and maintenance more convenient.
Automatic constant pressure differential valve, Electric butterfly valve is the key to ensuring the balance of hydroelectric power generation in a variable total flow air conditioning water system. The application of the automatic balance ratio credit card integral adjustment valve in the system can generate many benefits for you.
1. Because there is no need to carry out system adjustment, it saves a lot of inconvenience, saves time for large batches, and reduces the completion date.
2. Because there is no need to use valve groups and valves for hierarchical control, it saves you a lot of pipe fittings, thermal insulation materials, and assembly costs and time.
3. Keep the water system in a state of equilibrium at all times, so it is impossible to jeopardize the balance of the water system regardless of the construction of the assembly installation project or the application of the installment payment of machinery and equipment.
4. Even if the water system design plan in some areas must be changed in the middle and later stages of the project or after the capital is put into operation, it will not affect the water system design plan in other regions, and it is unlikely to affect the water system design plan in other regions. Balanced water system.
5. Because the entire system is in a balanced state, the refrigeration unit and centrifugal water pump will operate in the most environmentally friendly and energy-saving mode, saving a large amount of operation and maintenance costs.
6. Because the total flow balance of the system is automatically realized by the system, it makes the assembly and maintenance more convenient, and avoids the possibility of human error operation destroying the balance.
The comparison between the automatic balance ratio credit card integral adjustment valve, and the static balance valve
The static balance valve is actually a shut-off valve that can precisely set the opening degree by human factors. It adjusts some frictional resistance according to human factors to deal with the problem of hydropower balance in a part of the air-conditioning water system pipeline. In the initial adjustment of the system, all the valves in the system are at a certain opening. The adjustment staff set the opening of each static balance valve one by one according to the original mathematical analysis model (the valve opening is a certain value after setting), but for different water systems, the friction resistance distribution curve is different and cannot be measured. Therefore, the static balance valve has only vague and determined control of the water output. For a variable total flow air-conditioning water system, the change of the water volume of each air-conditioning unit is random, the change of the working pressure of the entire pipeline system cannot be measured, and the change of the opening degree of the regulating valve is also random. So people calculate from the formula.
G (total flow) = CV*A (total flow-carrying area of the valve) * △P (pressure difference on both sides of the valve) can be obtained:
Because the opening degree of the static balance valve is a certain value after adjustment. Therefore, the change in the pressure difference between the two sides of the valve must cause the data flow according to the static balance valve to change. Therefore, in a variable total flow system, when the working pressure of the system changes, it is difficult for the static balance valve to deal with the problem of hydroelectric power imbalance. It will still cause overcurrent and undercurrent in the system.
