Yichang pressure tank

Yichang Yichang pressure tank pressure tank installation Installation Yichang pressure tank pressure tank installation procedure role Yichang pressure tank installation process: pressure tank closed cycle system and water supply system which is not exactly the same role in the air conditioning, solar, boiler, warm and so close circulation system, the role of the pressure tank is absorbing system expansion due to temperature changes, and prevents drastic changes in the system pressure to reduce the number of water pressure relief valve and a number of automatic water valve; in the frequency of water supply, pressure water supply and fire and other water supply systems, the main role of a buffer tank pressure pump start and stop, and system valves open and close to produce water hammer impact, as well as low water peak pump ensure adequate sleep time, not only saving but also to extend the life of the pump . Pressure tank structure: pressure tank is divided into two kinds of bladder-type and diaphragm, diaphragm pressure tank is fixed in the pressure tank endometrial two half-shells of steel in the middle (see figure below) by hot way. This process, if handled properly, will leave tiny pores between the inner and steel, these tiny pores will be pre-filled gas leaked out, the pressure tank if gas leak, 90 percent is from here It leaked that the pressure tank leak a period of time if no supplementary gas can not play constant pressure unloading, which in itself is difficult to detect. Also due to the diaphragm pressure tank bottom half of the tank in direct contact with the water, though its interior is also done anti-rust treatment, but a long soak in the water tank as the situation appears rust, which is why the diaphragm pressure tank After a period of time to pour out the water was yellow. Since the tank wall thickness is generally about 1mm, interfaces directly welded to the tank, which can withstand torsion coupling manner quite small. And when you install the tank can only hold the housing rotation, so if the force is too large or too Meng, will spin off the interface. This situation is the most common air conditioner production process. Bellows pressure tank to overcome these shortcomings balloon pressure inside the tank have a whole balloon, water enters at work only within the balloon, not in contact with the casing. Connecting flange interface. This structure avoids the rust problem caused by the welding process and the secondary pollution of water. This structure of the pressure tank airbag can be replaced. Also, because it is flange connection, so its interface can withstand a lot of torque, the installation process is not afraid of the interface will be broken. Pressure tank principle: whether a closed loop system or water supply systems, pressure tanks are utilized more easily than the liquid gas compression feature to work, when the pressure tank installed in the system, because the system pressure than the pre-charge body pressure, so there will be a part of the working medium into the bladder (in terms of the diaphragm is to enter the tank body) until the new equilibrium is reached when the system pressure increases again, the system pressure is again greater than the pressure pre-charge the body, and there will be part of the medium into the capsule, the capsule and tanks of compressed gas between the compressed gas pressure rises, with the system when the pressure rises to the same, the media to stop entering the contrary, when the system pressure drops, the system pressure is below the medium bag between the tank and the gas pressure, the water inside the balloon will be added gas out of the system, the system pressure increases, until the system is working with the medium pressure gas pressure between the bladder and the tank is equal sac of water is no longer outside the system supply, maintain a dynamic balance. Pressure tank selection: total water capacity of HVAC systems (including boilers, pipes, radiators, etc.) e = coefficient of thermal expansion (boilers, air conditioners, heat pumps, water heaters, etc.) Selection of pressure tank V = C = System water (When the system cooling water expansion of the maximum temperature difference between the temperature of the boiler running, see table below), standard equipment e = 0.0359 (90 ℃) maximum pressure P1 = pressure tank precharge pressure P2 = system operation ( That take-off safety valve pressure system) volume V = pressure tank, for example: total water volume of 400L system boiler safety valve off pressure of 3bar should choose how much volume of the pressure tank V = = = 38.3L Press to Great choose a small principle, the closest is 50L pressure tank, that is, the system should be chosen 50L pressure pot. Air conditioning, heat pump system pressure tank Selection empirical formula: 5P less machine 2L 5-10P machine 5L 10-18P machine 8L 1P (match) = 2.5KW boilers, water heaters system: power 1000Kcal / h boiler or water heater, The total volume of water which system 10-20L 1Kcal / h (kcal / hr) = 1.163W pressure tank pressure tank heating system installation 1. generally installed in backwater end of the system, 35L and below the pressure tank and can be directly connected to the system piping, 35L and above pressure tank comes with tripod, avoid pressure tank system pipes have a greater weight on the load at work, using a metal hose to the pressure tank connected to the system, pressure tank buried screw feet to ensure a smooth course; 2. Pressure relief valve to be installed near the tank, to avoid abnormal pressure in the system when pressure tank and system damage other components installed Yichang Yichang pressure tank pressure tank pressure tank installation method to install flow Yichang Yichang pressure tank installation step