Chery all car water expansion tanks spare parts

The water tank is an important component of the water-cooled engine. As an important component of the water-cooled engine heat dissipation circuit, it can absorb the heat of the cylinder block and prevent the engine from overheating due to the large specific heat capacity of water.

After absorbing the heat of the cylinder block, the temperature rises not much, so the heat of the engine passes through the liquid circuit of cooling water, uses water as a heat carrier to conduct heat, and then dissipates heat in a convective manner through a large-area heat sink to maintain the engine’s Suitable working temperature.

The expansion tank is a welded steel plate container with various sizes and specifications. The expansion tank is usually connected with the following pipes:
(1) The expansion pipe transfers the increased volume of water in the system due to heating expansion into the expansion water tank (connected with the return water main road).
(2) The overflow pipe is used to discharge excess water exceeding the specified water level in the water tank.
(3) The liquid level pipe is used to monitor the water level in the water tank.
(4) The circulating pipe is used to circulate water when the water tank and expansion pipe may freeze (at the center of the bottom of the water tank, connected with the return water main road).
(5) The blowdown pipe is used for blowdown.
(6) The water make-up valve is connected with the floating ball in the tank. If the water level is lower than the set value, the valve is used to make up water.
For the sake of safety, no valve is allowed to be installed on the expansion pipe, circulation pipe and overflow pipe.
The expansion water tank is used in the closed water circulation system to balance the water volume and pressure, so as to avoid frequent opening of the safety valve and frequent water replenishment of the automatic water replenishment valve. The expansion tank not only plays the role of containing expansion water, but also plays the role of make-up water tank. The expansion tank is filled with nitrogen, which can obtain a large volume to contain expansion water. The high and low pressure expansion tanks can make up water to the pressure stabilizing system in parallel by using their own pressure. The control of each point of the device is interlocking reaction, automatic operation, small pressure fluctuation range, safe and reliable, energy saving and good economic effect.
The main function of setting expansion water tank in the system
(1) Expansion, so that there is room for expansion of fresh water in the system after heating.
(2) Make up water, make up the water lost due to evaporation and leakage in the system, and ensure that the fresh water pump has sufficient suction pressure.
(3) Exhaust, exhaust the air in the system.
(4) To administer chemicals to chemically treat chilled water.
(5) Heating. If a heating device is set in it, the chilled water can be heated for heating