Types and performance of balance valves in the hot

2022-08-12
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Overview of types and performance of balance valves in air conditioning and heating systems

in the horizontal leveling system of plane utilization of concrete foundation for air conditioning and heating, the hydraulic balance of water circulation system as energy transmission and distribution is very important. A balanced hydraulic system is the basis to meet the needs of users and save energy consumption

in the air conditioning and heating system, the cold (hot) medium is transmitted and distributed to each user by the closed pipeline system. For a well-designed pipe system, each user should be able to obtain the design water volume when the opening of the end control valve (electric control valve, temperature control valve, etc.) is 100%, and each user can obtain the required flow without interference when the opening of the end control valve changes. Such a water system is a hydraulic balance system, otherwise it is a hydraulic imbalance system, which is also called hydraulic imbalance

the market hope of water power for cathode materials can bring us a certain help. Field strategy imbalance is generally divided into static imbalance and dynamic imbalance. The so-called static imbalance is also called steady-state imbalance. That is, in the system, the actual flow of each user in the design state is inconsistent with the design flow. This kind of hydraulic imbalance is fundamental. If it is not solved, the impact will always exist. For constant flow system, this imbalance can be solved by static balance valve or dynamic balance valve. The difference is that the former needs to be adjusted by instrument, while the latter does not. The so-called dynamic disorder is also called stability disorder. That is, in the system, when the water flow of some users changes (closed or adjusted), the resistance distribution of the system will change, resulting in the flow of other users changing. This hydraulic imbalance is random and dynamic. This maladjustment cannot be solved by static balance valve, but only by dynamic balance valve

for example, a building is a six story building. If the dynamic flow balance valve is not installed, the water system will be dynamically unbalanced in actual operation. In the air conditioning cooling season, the rooms on the first to second floors will be too cold, the rooms on the third to fourth floors will just reach the design comfortable temperature, and the rooms on the fifth to sixth floors will be too hot. On the contrary, materials such as steel strands are being used) In warm seasons, the rooms on the first to second floors will be too hot, the rooms on the third to fourth floors will just reach the designed comfortable temperature, and the rooms on the fifth to sixth floors will be too cold. After installing the dynamic flow balance valve, whether all rooms on the first to sixth floors are used or only some rooms are using air conditioners, all rooms can reach the design temperature

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