Piston reciprocating compressor step compression method and system
A compression system, reciprocating technology, applied in the field of gas compression, can solve the problems of wasteful power consumption and waste, and achieve the effect of reducing operating costs
Inactive Publication Date: 2010-05-19
BEIJING HOSICA GAS EQUIP
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Problems solved by technology
Since the pressure in the user's gas tank is very low at the beginning of gas filling, it is undoubtedly a waste to use four-stage compressors to work at the same time to fill the gas tank with the highest pressure, and will waste a lot of power consumption in vain.
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[0014] In order to further illustrate the stepped compression system of the piston reciprocating compressor of the present invention, the following will be described in more detail in conjunction with the embodiments.
[0015] Change the piston reciprocating compressor from continuous power consumption to stepped power consumption. Because the piston reciprocating compressor consumes different power at each stage when compressing gas, and it is superimposed step by step according to the increase of the compression stage, and when the user's gas storage container reaches the required gas storage volume, it will not work at different inflation pressures. Points, the time required is also different, and when the piston reciprocating compressor is compressed to different inflation pressure points, the power consumed is also different. Therefore, we designed a new control method to change the power consumption of the piston reciprocating compressor from the continuous power consump...
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The invention relates to a method and a system for ladder compression of a piston reciprocating type compressor. In the application of the compressor, each stage is provided with separate input and output pipelines; the input and output pipelines are connected through the control of valve to form a compression system which can convert the connecting stage number and have four stages with four output pressures respectively lower than 0.9 times of a first-stage rated pressure, lower than 0.9 times of a second-stage rated pressure and higher than 0.9 times of the first-stage rated pressure, lowerthan 0.9 times of a third rated pressure and higher than 0.9 times of the second-stage rated pressure and lower than 0.9 times of a fourth-stage rated pressure and higher than 0.9 times of the third-stage rated pressure; through controlling and converting the on-off of each valve by an PLC, different stage connection modes are formed; and a drive motor is controlled by a transducer to determine an input power of the drive motor. Compared with the continuous type compression system, the ladder type compression system reduces 36 percent of the electrical energy consumption. The piston reciprocating type compressor has important significance to reduction of operating expenses for users and conservation of energy and reduction of consumption.
Description
technical field [0001] The invention relates to a gas compression technology, in particular to a stepped compression system of a piston reciprocating compressor. Background technique [0002] Piston reciprocating compressors are widely used in petroleum, natural gas and chemical industries. A commonly used drive method for piston reciprocating compressors is motor drive. The rated output power of the motor is slightly greater than that of the piston reciprocating compressor. Pressure, outlet pressure, gas flow, etc.), designed to have different compression stages, the higher the compression stages, the greater the required motor output power. For example, natural gas filling, when the natural gas inlet pressure is 0.8MPa, the outlet pressure of the filling tank after being compressed by the piston reciprocating compressor is 25MPa, and the gas flow rate is 2220M 3 / h. If it works continuously from the first stage to the fourth stage according to the compression stage, the...
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IPC IPC(8): F04B49/00F04B25/00
CPCF04B25/00
Inventor 蒋春生
Owner BEIJING HOSICA GAS EQUIP