Safety is our overriding object. Reliable technology is a prerequisite for safety and takes time to be proved. Until now, Tiangao diaphragm compressors, which have been used for more than 20 years, is still in normal operation. The safe and reliable Tiangao products have been verified under harsh conditions. Our product can meet the explosion-proof requirement of CT4, and various of safety protection devices could be installed to ensure safety.

. Diaphragm rupture detection and interlocking shutdown, pressure gauge display and over-pressure safety valve with discharge and relief functions.

. Lubricating oil pressure remote transmission, low pressure alarm and interlocking shutdown.

. Coolant cut-off protection.

. Suction pressure remote transmission, low suction pressure alarm and low-low interlocking shutdown.

. Discharge pressure remote transmission, high discharge pressure alarm，bypass and high-high interlocking shutdown.

. Discharge temperature monitoring at all stages.

. Discharge temperature high alarm, overheat interlocking alarm and shutdown.

. Lubricating oil temperature remote monitoring and interlocking protection. The oil heater could be installed to ensure the normal operation in low ambient temperature condition.

. Manual and automatic pressure relief valves in oil and gas circuits.

. Dual-oil-filter.

. Error-tolerance design to reduce the probability of equipment damage caused by human error.

. Tailored materials for different process gases.

. Utilize non-flammable and chemical resistant oil to compress strong oxidizing gas.

. The Bypass System could be utilized to reduce the impacts of frequent startup and shutdown.

. Large equipment could be equipped with vibration transmitter, vibration data remote transmission controlsystem, excessive vibration alarm and shutdown.

. Large machines could be equipped with main bearing high temperature alarm, high-high interlocking alarm and interlocking shutdown.

. Each stage could be equipped with safety valve. Suction safety relief valves are equipped at suction when compressing hydrogen to ensure the normal operation of each cylinder and pipeline pressure.

. Filters could be equipped at suction to ensure the durability of gas valve and diaphragm.

. Damper are equipped for all stages to ensure gas flow stability.

. Low piston speed design to reduce equipment vibration and extend diaphragm and gas valve life.

The valves in the gas and oil circuits are automatically opened and closed by preset program to reduce the possibility of safety accidents caused by human error.

Hydrogen embrittlement is a crack or damage phenomenon of metal caused by the material mechanical plasticity and performance decline under certain conditions. The hydrogen density and volume are tiny that could cause void growth and coalescence. Hydrogen atoms could penetrate metal easily and bring grain boundary diffusion. Hydrogen atoms recombine into hydrogen molecules in the grain boundary defects and continue to gather, resulting in increasing internal stress, and consequently the metal cracked.

Tiangao high-pressure hydrogen diaphragm compressor successfully overcome the cylinder stress crack by utilizing patented Composite Gas Head design. The hydrogen processing side adopts hydrogen embrittlement resistant materials while the external part adopts high strength steel to lower the cost while maintaining its structural strength.

The crankshaft, crankcase, gas head, oil head, connecting rod and other main parts are designed to withstand 200,000 hours service life.

Oil pressure makes gas pressure. Oil overflows at high pressure and be replenished at low pressure is the core theory of oil controlling system. Oil replenishment Technology is designed based on the Engineering Cybernetics, ensuring the stability of the oil pressure system. In a close-loop oil system, oil must be compensated after each overflow. Replenishment pump, regulating valve and check valve play crucial roles in oil distribution system. The Replenishment pump is used to replenish oil, the regulating valve is used to control oil overflow volume, and the check valve is used to prevent backflow.

The cleaner the oil is, the better the dynamic oil film sealing effect can be guaranteed, and the more stable the machine is. The Oil Filtration System is one of the essential factors to ensure the oil pressure stability. The lubricating oil after coarse filtration will be pressurized by the gear pump to the precision filter, and enters the replenishment pump. This process stops small particles from entering the replenishment pump and prevents plunger damage. At the same time, the pressurized lubricating oil can keep the replenishment pump working even if there is air insider the pump.

The Non-Oil-Perforated-Plate Design to reduce sealing and leakage surface, effectively control the diaphragm stress and improve the discharge efficiency and equipment operational efficiency.

The Degassing Technology of Oil Pressure System to achieve stable oil pressure.

The high efficiency oil heat exchanger to greatly reduce the lubricating oil temperature.

The Pressurized Lubricating Technology to improve the moving part bearing capacity. Oil film generates on the surface of friction pairs when the pressure oil has been injected, which effectively improves the lubrication between the friction pairs and dissipates the friction heat.