What role can the hydraulic anti riot valve play and what is the working principle?

Hydraulic anti-riot valve function:

Explosion-proof valves are mainly used in large mechanical stages, lifts, lifts, automobile inspection and maintenance girders and other equipment hydraulic systems without mechanical locking systems.

It mainly plays a protective role to prevent the occurrence of safety accidents. It is a locking measure for the hydraulic system.

How explosion-proof valves work:

There are closed cavities in the solenoid valve, and there are through holes in different positions, each hole leads to a different oil pipe, and the middle of the cavity is a valve, and there are two electromagnets on both sides.

Whichever side of the magnet coil is energized, the valve body will be attracted to which side.

The movement of the valve body is controlled to block or leak the different drain holes, while the oil inlet holes are normally open, hydraulic oil.

It will enter different oil discharge pipes, and then push the piston of the oil through the pressure of the oil, and the piston will drive the piston rod, and the piston rod will drive the mechanical device. In this way, the mechanical movement is controlled by controlling the current of the electromagnet.

The main function of the hydraulic explosion-proof valve is: in order to prevent the sudden rupture of the oil pipe and the uncontrolled descent accident, and at the same time prevent the leakage of hydraulic oil in the pipeline, it is generally installed in the oil outlet or the oil port of the oil cylinder.

The basic principle of explosion-proof valve: using the pressure difference between the inlet and outlet ends and the imbalance of spring force, when the flow rate in the pipeline exceeds the set value, the pressure difference between the two oil ports increases, and the spring force is overcome to promote the movement of the valve core, cut off the oil circuit, and prevent the system pressure from getting out of control.

First of all, the hydraulic riot valve is a safety device ground valve to prevent overpressure leakage!

The working principle of explosion-proof solenoid valve needs to be understood from two aspects: the explosion-proof design of the valve and the solenoid valve

1.Explosion-proof design of the valve: The explosion-proof design of the solenoid valve is to put the parts that may produce sparks, arcs and dangerous temperatures in the valve into the flameproof shell, which separates the internal space of the valve from the surrounding environment, so as to effectively avoid the impact of the valve operation process on the surrounding gas mixture.

2.The working principle of the solenoid valve: there is a closed cavity in the solenoid valve, the middle of the cavity is the valve, the two sides are two electromagnets, which side of the magnet coil is energized, the valve body will be attracted to which side, the oil pressure control in the valve is realized by controlling the movement of the valve body, and then the piston of the cylinder is pushed by the pressure of the oil, and the piston drives the piston rod, and the piston rod drives the mechanical device to move.

In this way, the mechanical movement is controlled by controlling the current of the electromagnet.

In summary, the explosion-proof solenoid valve is the solenoid valve for explosion-proof design.

The micropore diameter of the imported E-PTFE membrane is between, while the average diameter of air molecules is only, the average diameter of water vapor is average, and the diameter of drizzle is about 500 m, that is, the pore size of EPTFE membrane is more than 1000 times larger than the diameter of gas, which is one thousandth of a water droplet. In addition, due to the low surface energy of the E-PTFE membrane, small water droplets will quickly form large water droplets on the surface of the E-PTFE membrane under the action of surface tension (water molecules pulling each other). Therefore, the gas can pass through smoothly, while the liquid water cannot pass through, so it has good waterproof and breathable performance.

When the internal pressure of the battery pack box is less than the burst value set by the explosion-proof valve, it is in a normal working state (as shown in the figure on the right), and the working principle of this working state is the same as that of the traditional waterproof vent valve: the gas inside and outside the cavity flows freely through the built-in E-PTFE waterproof and breathable membrane of the valve body, and the gas flows from the side with high pressure to the side with low pressure, that is, when the internal pressure of the cavity is stronger than the external pressure of the cavity, the gas is discharged outward, and when the internal pressure of the cavity is less than the external pressure of the cavity, the gas will enter the inner cavity. In this way, the internal and external air pressure is balanced. In this state, the PUW explosion-proof valve functions as a waterproof vent valve (breathing valve).

When the internal pressure of the cavity is greater than or equal to the bursting value set by the explosion-proof valve, it is in an explosion-proof working state (as shown in the figure on the right), at this time, the internal pressure is open to the built-in piston body, and the gas will be directly connected to the outside through the barrier-free passage to achieve rapid gas discharge, so as to quickly reduce the pressure in the cavity and prevent the cavity from bursting. In this state, it plays the role of explosion-proof.

When the internal pressure drops below the burst value set by the explosion-proof valve, the PUW explosion-proof valve will immediately return to its normal working state, so the PUW explosion-proof valve is not a one-time product, and can be 100% inspected before shipment and use to ensure that the explosion-proof function meets the requirements.

Hydraulic anti-riot valve function:

Explosion-proof valves are mainly used in the hydraulic system of equipment without mechanical locking systems, such as large mechanical stages, lifts, lifts, automobile inspection and maintenance girders, etc., which mainly play a protective role to prevent the occurrence of safety accidents. It is a locking measure for the hydraulic system.

How explosion-proof valves work:

There is a closed cavity in the solenoid valve, there are through holes in different positions, each hole leads to a different oil pipe, the middle of the cavity is the valve, and the two sides are two electromagnets, which side of the magnet coil energized valve body will be attracted to which side.

By controlling the movement of the valve body to block or leak out different oil discharge holes, and the oil inlet hole is normally open, the hydraulic oil will enter different oil discharge pipes, and then through the pressure of the oil to push the piston of the oil gang, the piston drives the piston rod, and the piston rod drives the mechanical device to move. In this way, the mechanical movement is controlled by controlling the current of the electromagnet.

When the pressure in the vessel exceeds the specified value, the safety valve will automatically open to discharge a part of the gas or liquid in the container into the atmosphere (or discharge through the pipeline), so that the pressure of the vessel does not exceed the allowable value, so as to ensure that the vessel does not cause accidents due to excessive pressure.

The pressure vessel installation safety valve is to automatically open the pressure reduction when the pressure in the container exceeds the pressure you set, and the general and safety valve are used at the same time as an explosion-proof valve, the explosion-proof valve is when the safety valve fails, if the pressure exceeds the pressure range of the pressure vessel calibrated when the explosion-proof membrane bursts, so as to protect the pressure vessel will not be **.

The pressure vessel has its maximum design pressure. Safety valves also have a set pressure (opening pressure). The opening pressure value of the safety valve can be set, and when the pressure of the vessel is less than the opening pressure, the safety valve is normally closed.

When the pressure of the vessel is greater than the opening pressure of the safety valve, the safety valve is opened, the excess pressure is removed and then reset, and so on.

As long as the opening pressure of the safety valve is set to be less than the design pressure of the vessel, the pressure vessel will never be overpressurized or burst.