2024 hot selling Hydrogen Compressor for Hydrogen Production, Refueling, and Pressurization
The hydrogen gas compressor is primarily utilized in hydro-generation stations to pressurize low-pressure hydrogen to a specified level and store it in hydrogen storage containers at hydrogen refueling stations or directly fill vehicle-mounted cylinders to meet customer demand for hydrogen gas refills.
The product is driven by an explosion-proof motor in the hydraulic drive system, which drives the hydraulic oil pump to actuate the piston in the hydrogen pressurization system, compressing the hydrogen gas.
The hydrogen pressurization system adopts single-stage compression. The pressurization system integrates a cooling system and has a compact structure.
A. Product Highlights-Oil isolation technology
Compared with the oil-isolating sealing structure of competitors, the LexFlow brand's unique cylinder seal + isolation chamber oil-isolating structure implements double isolation and protection of oil. The oil film part of the piston rod is isolated from the cylinder, which prevents oil from entering the cylinder and contaminating the medium at the molecular level. Build a "pollution-free" hydrogen refueling station.
B. High-efficiency spiral liquid cooling technology - calmly cope with various working conditions
The compressor cylinder adopts a 360-degree spiral cooling structure with no dead ends. The heat transfer efficiency is improved through structural optimization and the cooling capacity of the cooling medium is fully utilized. The exhaust temperature is 10°C lower than the exhaust temperature of conventional structures.
Key technical features
A. Specialized structural design and processing technology to enhance service life
B. Hydraulic system with simple control and low failure rate
C. Simple structure, minimal parts, and convenient maintenance, enabling replacement of a group of senior pistons within 30 minutes
D. Special construction design for improved heat conduction and enhanced volume efficiency of the compressor
E. Each product undergoes pressure, temperature, displacement, leakage, and other performance testing using helium gas before delivery.
| Model |
LFC-D-470/50-200/450 |
LFC-D-470/50-200/450 |
LFC-D-940/50-200/450 |
LFC-D-1410/50-200/450 |
LFC-D-1880/50-200/450 |
| Stage |
2 |
1 |
1 |
1 |
1 |
| Medium |
H2 |
H2 |
H2 |
H2 |
H2 |
| Rated output |
470Nm3 ( 500kg/12 h ) |
470Nm3 ( 500kg/12 h ) |
940Nm3 ( 1000kg/12 h ) |
1410Nm3 ( 1500kg/12 h ) |
1880Nm3 ( 2000kg/12 h ) |
| Inlet pressure |
5Mpa ~ 20 Mpa |
5Mpa ~ 20 Mpa |
5Mpa ~ 20 Mpa |
5Mpa ~ 20 Mpa |
5Mpa ~ 20 Mpa |
| Inlet temp. |
-20ºC ~ +45ºC |
-20ºC ~ +45ºC |
-20ºC ~ +45ºC |
-20ºC ~ +45ºC |
-20ºC ~ +45ºC |
| Outlet temp. |
≤45ºC |
≤45ºC |
≤45ºC |
≤45ºC |
≤45ºC |
| Max working pressure |
45MPa |
45MPa |
45MPa |
45MPa |
45MPa |
| Power |
55KW |
90KW |
110KW |
145KW |
180KW |
| Noise |
≤85Db ( distance 1 m)
|
| Explosion -proof |
Ex d e mb IIC T4 Gb |
The current displacement of our liquid drive compressor products covers the filling needs of two displacements: 500kg and 1000kg.
|
Specification |
500kg Fixed Station |
1000kg Fixed Station |
|
Model |
LFC-D-470/50-200/450 |
LFC-D-940/50-200/450 |
|
Suction Presure |
5MPa~20MPa |
|
Rated Suction Pressure |
12.5MPa |
|
Intake air tempturue |
-20ºC~+40ºC |
|
Rated intake air temp. |
20ºC |
|
Rated displacement |
470Nm³/h(500kg/12h) |
940Nm³/h(1000kg/12h) |
|
Explosion-proof signs |
Ex d e mb IIC T4 Gb |
|
Noise |
≤85dB(distance 1m) |
|
Motor Power |
55kW |
2×55 kW |
R&D Key technology
Through many tests and improvements, we summed up our experience and finally determined an inlet and outlet combined splitter cone, vacuum nickel-based brazing and heat treatment technology suitable for the CNG flowmeter produced by our company.
1. Imported combined splitter cone (obtained utility model patent - patent number: 201020170649.5)
The inlet end and the outlet end are structurally symmetrical and are connected by a pipe body. The inlet end and the outlet end are composed of an interface joint, a shunt cone, two measuring tubes and a measuring tube joint, wherein the interface joint and the measuring tube joint form a The two are docked and positioned with a shunt cone. The measuring tube is inserted into the measuring pipe joint and then welded. The shunt cone is inserted into the measuring tube and the measuring pipe joint. The measuring tube and the shunt cone maintain a tight positioning fit.
The measuring tube and the measuring tube joint are welded by argon arc welding; the diverter cone is inserted into the inner hole of the measuring tube joint in the axial and radial directions, and the diverter cone is positioned in conjunction with the measuring tube in the circumferential direction.
The interface joint is placed on the diverter cone, so that the outer cone surface of the diverter cone and the inner cone surface of the interface joint are positioned axially, and the inner hole of the interface joint is positioned radially. The interface joint and the diverter cone are also integrally pressed. Tight and welded with argon arc welding.
Beneficial effects:
When used in CNG flowmeters, this utility model can effectively improve the yield of CNG flowmeters, reduce the overall production cost, and scientifically ensure the overall performance of the CNG flowmeter. Moreover, this method and structure also have the characteristics of easy parts processing, low cost, and easy assembly and welding. The application of this method and structure will be of great help to the development of low-priced, high-performance domestic CNG flow meters, and will lay a solid foundation for the market dominance of domestic CNG flow meters.
2. Vacuum nickel-based brazing and heat treatment (obtained invention patent - patent number: 201010186127.9)
This process is completed according to the process flow of parts positioning, parts calibration, surface treatment, solder laying, vacuum welding and vacuum insulation, and cooling out of the furnace. It effectively solves the problem of CNG flowmeter failure caused by uneven heating of the measuring tube due to conventional silver-based manual soldering. Performance is greatly reduced.
After this process is applied in the production process of CNG flow meters, the deformation of the measuring tube and the uneven internal stress are minimized, which greatly improves the performance of the CNG flow meter. The yield can reach 95% and the overall cost is reduced. It is suitable for CNG flow. Large-scale mass production of CNG flow meters; it can bring the overall technology and accuracy of CNG flow meters to a new level; it will be of great help to the development of low-priced, high-performance domestic CNG flow meters and create a better market for domestic CNG flow meters. Dominance has laid a solid foundation.
3. High-precision time difference detection technology
It is used for high-precision time difference testing of mass flow meters. The time difference measurement can reach within 0.3 nanoseconds, ensuring high accuracy of measurement; it adopts DSP (digital signal processing) technology and can effectively replace imported products.
4. Adaptive linear digital filtering technology
It can filter out the interference waveform of the output current of the mass flow meter sensor. Linear filtering does not affect the linear characteristics of the flow meter. In addition, because the transmitter needs to adapt to sensors with multiple natural frequencies, an adaptive algorithm is designed to achieve frequency adaptation. Ensure the versatility of the filtering algorithm.
5. Weak signal detection circuit based on high-precision differential analog operational amplifier
It belongs to the circuit design of the mass flow meter. The design of the voltage follower prevents the output from affecting the input. The design of the differential circuit effectively suppresses common mode interference signals. It has strong anti-interference performance, low detection signal amplitude and high accuracy.
6.Adaptive broadband oscillation technology based on frequency sweep algorithm
Used for mass flow meters, it has a wide frequency sweep range and fast frequency sweep speed, effectively ensuring the detection of the center frequency. Different sensors can be set to different frequency sweep ranges.
7.Synchronous phase tracking technology for constant measurement of tube resonance amplitude
It is used in mass flow meters to ensure that the resonance amplitude of the measuring tube is stable, the fluctuation is small, and the phase synchronization can be achieved within 6°.
Technology Advantages
a)The optimal vibration mode of flowmeters is determined after the finitement analysis, the structure is improved and the modal in each order is reasonably distributed. Driven by the simple harmonic, each position of the measuring tube will respond. A reasonable damped structure has been designed to improve the noise-proof feature.
b)The high-performance 32/40-bit DSPs are used as the core processor, including high efficiency instruction set, hardware FFT and other peripherals specially used for audio signal processing to fast process various digital signals in real time and largely improve the stability of flowmeters.
c)The mass flowmeter is welded by the unique vacuum brass solder process, which ensures the welding quality and also fully guarantees the stress removal to largely improve the zero stability of mass flowmeter in use.
d)Water gauge calibration testing platform: The Company owns the scarce calibration systems and stability testing system for water gauges
with large-span diameter (DN6-DN400) in the industry for the operating condition calibration and the stability testing of flowmeters.
e)High pressure gas testing platform: The Company has established the first high pressure air (25MPa) calibration system and stability testing system in China for the operating condition calibration and the stability testing of high-pressure flowmeters.
f)Liquid nitrogen lowtemperature calibration testing platform: The Company has established the first copious cooling calibration system and stability testing system in China for the operating condition calibration and the stability testing of low-temperature flowmeters.
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