How the expansion pot works.
The main function of the car expansion pot is to adjust the pressure in the cooling system to prevent the system pressure from being too high or too low, thus protecting the engine. It does this in several ways:
Water and gas separation and pressure regulation: The expansion kettle achieves pressure regulation through a steam valve on its lid. When the internal pressure of the cooling system exceeds the opening pressure of the steam valve (usually 0.12MPa), the steam valve automatically opens, allowing hot steam to enter the large cooling cycle, thereby reducing the temperature around the engine and ensuring the normal operation of the engine.
Add coolant: The expansion kettle adds antifreeze to the water inlet side of the pump through the water refill pipeline under it to prevent cavitation caused by the impact of steam bubble rupture on the surface of the machine.
Pressure relief function: When the system pressure exceeds the specified value, such as boiling phenomenon, the pressure relief valve of the lid will be opened, and the system pressure will be removed in time to avoid serious consequences.
These functions work together to ensure the stable operation of the car cooling system and the safety of the engine.
The expansion lid does not exhaust gas.
If the expansion lid does not exhaust, the water tank will not work normally, which will affect the normal working performance of the engine. The expansion lid, also known as the pressure tank lid, is an important part of the automotive cooling system. Its main function is to maintain the pressure in the cooling system, including the pressure relief function, that is, when the pressure in the system exceeds the specified pressure, the lid can release the excess pressure to prevent the pressure in the system from being too large. If the expansion lid does not exhaust, that is, the pressure relief function fails, it will cause the pressure in the cooling system to be unable to be effectively adjusted, which may cause the water tank to work abnormally, and even affect the normal operation of the engine. In addition, if the expansion lid is damaged or improperly installed, it will also lead to increased gas and liquid pressure in the cooling system, which may lead to high engine temperature, further aggravating the risk of damage to the engine. Therefore, maintaining the normal function and condition of the expansion lid is essential for the normal operation of the car.
Can the water heater pressure relief valve be removed?
The screw of the pressure relief valve of the water heater can not be removed, of course, the pressure relief valve is usually in the open state, can adjust the pressure of the water heater, if the screw is tightened some pressure will increase, if the screw is loosened some pressure will decrease, after removal will affect the heating effect of the water heater, but also cause damage to the inner tank of the water heater. Related popular science knowledge: 1, the pressure relief valve of the water heater is mainly to protect the pressure of the water heater liner, can discharge the pressure caused by the water heater liner, and can also play a regulating role, usually in the closed state, only the water heater pressure reaches about 0.7mp, the pressure relief valve will automatically relieve pressure, common pressure relief valve around the water, it proves that the pressure relief valve is working. 2, when the pressure is too large to be discharged, the inner tank of the water heater will burst, and try not to touch the pressure relief valve or tighten the screw during daily use, so that the pressure relief valve is in an automatic adjustment state. 3, the installation of water heater if the leakage of this valve will have a safety hazard, the water heater liner has been in a vacuum closed state, after heating the water temperature will continue to rise, the pressure will continue to rise, when the water pressure is unstable, the pressure relief valve will play the role of releasing pressure, and the liner under too much pressure will cause the welding point to be disconnected.
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