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Integrated hydraulic station

A hydraulic station, integrated technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system safety, fluid pressure actuation system components, etc., can solve the problems of large floor area, hydraulic oil return, troublesome maintenance, etc. , to achieve the effect of small overall size, avoid hydraulic oil return, save space and cost

Inactive Publication Date: 2020-03-10
JEREH OIL & GAS ENG
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current hydraulic station occupies a large area, maintenance is troublesome, and the cost is high. The most important thing is the technical problem that the hydraulic oil is prone to return.

Method used

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Embodiment 1

[0023] Such as Figure 1-3 As shown, an integral hydraulic station includes a cooler 1, a hydraulic oil tank 4, a motor system and a valve block 2, the hydraulic oil tank 4, a motor system and a valve block 2 are integrated into one set, and there are two sets of motor systems, and the motor system includes a motor 5. The plunger pump 6 and the elastic coupling 8, the valve block 2 is located at the upper part of the hydraulic oil tank 4, the motor system is located at the lower part of the hydraulic oil tank 4, and the motor 5 transmits power to the plunger pump 6 through the elastic coupling 8;

[0024] The valve block 2 is provided with an oil outlet 9, an oil return port 10, an unloading valve and an electro-hydraulic directional valve (not shown in the figure), and the unloading valve and the electro-hydraulic directional valve respectively control the pressure and flow direction of the hydraulic oil , to realize the reversing of the piston head in the hydraulic cylinder,...

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Abstract

The invention belongs to the technical field of compressed natural gas filling, and particularly relates to an integrated hydraulic station which realizes high integration of an oil tank, plunger pumps, motors, a valve block, a cooler, an instrument and a sensor. The reversing function of hydraulic oil is provided through cooperation of an electro-hydraulic reversing valve and a proximity switch on a hydraulic cylinder, the functions of circulating heating of the low-temperature hydraulic oil, discharging of the high-pressure hydraulic oil and avoiding the hydraulic oil channeling back betweenthe double pumps are realized through cooperation of an unloading valve, a one-way valve and the electro-hydraulic reversing valve in the valve block, the high-pressure difference automatic stop function and the high-pressure gas discharging function are provided, combustible gas leakage and expansion deformation of the oil tank which cannot be recovered caused by high-pressure gas channeling back are avoided, the functions of low oil level monitoring alarm, temperature monitoring alarm and low oil temperature automatic circulating heating before starting of the hydraulic oil tank are provided, a three-way ball valve is adopted to replace an oil return valve block in the aspect of cooling oil return of the hydraulic oil, thus the oil return control function is realize, and the cost and space of the hydraulic station are also reduced.

Description

technical field [0001] The invention belongs to the technical field of filling compressed natural gas, and in particular relates to an integral hydraulic station. Background technique [0002] In recent years, my country's natural gas industry has achieved rapid development. Natural gas has become a clean energy alternative to diesel in addition to meeting the traditional needs of civil and industrial gas and gas-fired power generation. CNG and LNG refueling stations are the main supply methods of natural gas for vehicles. At present, there are three types of stations in China: CNG standard station, CNG master station, and CNG sub-station to realize CNG refueling. With the iterative update of compression technology , the hydraulic compressor has gradually replaced other models as the main compressor of the CNG substation due to its ultra-wide intake pressure range, high compression ratio and high discharge pressure. The hydraulic station is the heart of the hydraulic compre...

Claims

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Application Information

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IPC IPC(8): F15B21/00F15B21/0423F15B21/0427F15B20/00
CPCF15B20/00F15B21/00F15B21/0423F15B21/0427
Inventor 梁志会张锋王饶霖李建举胡志强沈君
Owner JEREH OIL & GAS ENG
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