Wucheng expansion tank / fifty-one low price wholesale / Shandong expansion tank / expansion tank Texas Introduction Welcome to: http: //wcdzgy.258weishi.com expansion tank is a welded steel containers, a variety of different size specifications. The expansion tank is usually connected with the following channels: (1) expansion of the water system, whether it be due to the increased volume of heating expansion into the expansion tank (and backwater roads are connected). (2) for discharging the overflow tube in the tank exceeds a predetermined level multi-point expansion tank installed installation position, consideration should be given to prevent freezing of water within the tank, if the tank is installed in the non-heated rooms, the insulation should be considered. Expansion pipe gravity circulation system connected to the top of the water supply risers; connected to the system set pressure point in the mechanical circulatory system, usually before the pump suction port connected to the circulation pipe is connected to the system at constant pressure point level before the return water pipe on, between the point and the constant pressure point, it should maintain a distance of not less than 1.5-3m. This allows a small amount of water can slow the outflow pipe through the circulation pipe and the expansion tank, waterproof box of water freezing. In the gravity loop, loop canal also received water supply mains, with the expansion pipe should also maintain a certain distance. Expansion pipe, overflow pipe and circular pipe Do not install the valve, and the drain valve and the signal pipe should be set. Located in the non-heating room expansion pipe, circulating pipe, signal pipe should be insulated. Usually open expansion tank water temperature should not exceed 95 ° C. 4 Principle general flow cooling system pumps coolant pressure rely to achieve. The low pressure side of the pump suction, easy to produce steam bubbles, the pump out water decreased significantly, and cause water pump impeller and water jacket cavitation pitting or pits on the surface, reducing the impeller and the water jacket life. After the installation of expansion tank, because of the expansion tank between the pump inlet and add water; the radiator steam bubbles and steam bubbles in the water jacket through the catheter and into the expansion tank, so that the complete separation of air and water. Low temperature due to the expansion tank, into the obtained gas is condensed into a liquid part, to re-enter the pump. The accumulation of liquid in the expansion tank of gas from the buffer, so that the pressure within the cooling system remains stable. 5 Role expansion tank is widely used in central air conditioning, boilers, water heaters, frequency, constant pressure water supply equipment, which can buffer the system pressure fluctuations, eliminate water hammer has played the role of the regulator unloading, slight variations in the system pressure , the expansion tank expansion and contraction of the balloon will automatically change in water pressure have a cushioning effect, to ensure that the system pressure is stable, the pump will not change the pressure and frequent open. Expansion tank than water. (3) the level tube used to monitor the water level inside the tank. (4) when the tank and the circulation pipe may occur freeze expansion pipe for circulating water (at the bottom of the central location, and backwater roads connected to the tank). (5) for the sewage outfall. (6) water valve and float cabinets connected to the water level below the set value is to add water through the valve. For safety reasons, the expansion, the circulation pipe, the overflow pipe is not allowed to install any valve. Expansion tank for closed water circulation system, played a role in the balance of water and pressure relief valve to avoid frequent opening and automatic water valve replenishment frequently. Expansion tank to accommodate the expansion to play the role of water, but also play a role in the makeup tank, expansion tank filled with nitrogen, can be expanded to accommodate a larger volume of water, high and low pressure of the expansion tank can be used in parallel to the regulator system itself replenishment. The means for controlling the points are Cascade, automatic operation, pressure fluctuation range, safe, reliable, energy-saving, economic effects. System set up major role in the expansion tank (1) expansion of the system in the fresh water heated room after the expansion. (2) pay the amount of water due to evaporation and replenishment system leakage losses and to ensure there is enough fresh water pump suction pressure. (3) Exhaust emission air in the system. (4) administration, investment and chemicals in order to freeze the water chemical treatment. (5) is heated, if the heating means disposed therein, can be heated to warm the chilled water tank.