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Rotary vane expander

An expander and sliding vane technology, which is applied in the field of energy saving and emission reduction, can solve the problem that the sliding vane expander cannot replace the self-operated pressure regulating valve, and the back pressure is stable.

Pending Publication Date: 2018-01-30
重庆华稷新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the front pressure of the expander fluctuates, the back pressure will also fluctuate in proportion to N, so the existing slide vane expander cannot replace the self-operated pressure regulating valve to implement the function of stabilizing the back pressure

Method used

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  • Rotary vane expander
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  • Rotary vane expander

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Experimental program
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Effect test

Embodiment Construction

[0020] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0021] Such as figure 2 Shown, the present invention comprises the stator 1 that contains cylinder and the rotor that eccentrically installs in the stator cylinder, the air inlet of stator 1 is connected with air intake pipe 3, and the air outlet is connected with air outlet pipe 4; Regulating pipe 5, the first regulating pipe 5 communicates with the stator cylinder along the rotation direction of the rotor, and the first regulating pipe 5 is equipped with a first regulating valve 6 .

[0022] When the air inlet air pressure is maximum, the first regulating valve 6 is closed, and the first regulating pipe 5 is blocked. At this time, the high-pressure gas enters the stator cylinder through the air inlet of the air inlet pipe 3, which is determined according to the inherent structure of the sliding vane expander design. The expansion ratio of the sliding vane...

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PUM

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Abstract

The invention discloses a rotary vane expander. The rotary vane expander comprises a stator (1) which is provided with a cylinder, and a rotor which is eccentrically mounted in the cylinder of the stator, wherein an air inlet of the stator (1) is connected with an air inlet pipe (3), and an air outlet of the stator (1) is connected with an air outlet pipe (4); a first adjusting pipe (5) is connected to the air inlet pipe (3) and communicated with the cylinder of the stator through a row of branches of the first adjusting pipe in the rotor rotating direction; a first adjusting valve (6) is mounted on the first adjusting pipe (5). The rotary vane expander has the advantages that the outlet pressure is kept stably while air pressure of the air inlet changes, moreover, the mechanical energy produced by the expander can be used for generating power.

Description

technical field [0001] The invention relates to a large-scale expander used for generating electricity by pressure difference in the natural gas main network. It is used to replace the self-regulating valve on the natural gas pipeline network to keep the back pressure constant, and at the same time, it does work during the decompression process and drives the generator to generate electricity, which belongs to energy saving. Emission reduction technology field. Background technique [0002] An expander is a device that converts the pressure energy of high-pressure gas into mechanical energy. [0003] The structure of the sliding vane expander is as follows figure 1 As shown, it includes a stator 1 containing a cylinder, a rotor 2 is installed in the stator cylinder, the axis of the rotor 2 deviates from the axis of the stator cylinder, the air inlet of the stator 1 is connected with an air inlet pipe 3, and the air outlet is connected with an air outlet pipe 4 ; The outer ...

Claims

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Application Information

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IPC IPC(8): F01C1/344
Inventor 巫山
Owner 重庆华稷新能源科技有限公司
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