reciprocating compressor expander

Abstract

The present invention can eliminate the enlargement of the device, resist the strong elastic force for closing the valve, and easily open the valve with a simple mechanism and low driving force according to the load of the reciprocating compressor and expander. The reciprocating compression-expander of the present invention is provided with: a first valve and a second valve (8). After the first valve is opened, the low-pressure compressive fluid is sucked into the main body cylinder from the low-pressure path, and the main body piston moves the The compressive fluid sucked by the first valve is compressed to make it high pressure, and the second valve (8) is opened to discharge the compressive fluid to the high-pressure passage (9), or, the second valve (8) After the valve is opened, the high-pressure compressive fluid flows into the main body cylinder from the high-pressure path, and the compressive fluid flowing in from the second valve is expanded by the action of the main body piston to become a low pressure. After the first valve is opened, the compressive fluid is discharge to the low-pressure path; the first valve driving mechanism driven by hydraulic pressure or electric makes the first valve and the second valve operate; and the second valve driving mechanism (17, 18, 27) makes the The second valve operates.

Description

technical field [0001] The present invention relates, for example, to a reciprocating compander suitable for compressing or expanding a compressive fluid. Background technique [0002] As renewable energy, solar power generators, wind power generators, and the like have been widely used conventionally. However, power generation devices using these natural energies may be difficult to effectively use according to power demand due to large fluctuations in power generation. [0003] The reason for this is that when generating electricity using natural energy that cannot be controlled by human beings, the amount of electricity generated may greatly exceed the demanded electricity and excessive surplus electricity may be generated. Therefore, in the worst case, power outages may occur. Therefore, in order not to generate such an excessively large surplus power, a power generation device using natural energy may sometimes block a part of the power. [0004] And as a countermeasu...

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Problems solved by technology

[0010] In addition, the capacity of the screw compressor is relatively small, which is not suitable for large-capacity energy storage devices

In addition, the capacity of the screw compressor cannot be adjusted independently by the compressor and expander, and a pressure regulating device for compressed air is required.

Furthermore, in order to solve such a problem, the electric power system also needs a converter such as an inverter, and in this case, there is a problem that the cost of the device itself becomes high.

[0011] On the other hand, in the conventional reciprocating compressor, the suction valve and the discharge valve are operated by springs such as plate springs as described above. The action of the suction valve and the discharge valve is carried out by the elastic force, so there must be a problem that it is difficult to adjust the suction flow rate and the discharge flow rate arbitrarily and appropriately.

In addition, there is a problem that it cannot be used as an expander

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