Controllable high-pressure backflow device of gas supercharger

Abstract

The utility model discloses a controllable high-pressure backflow device of a gas supercharger, which comprises an air compressor module and a gas storage tank, the gas outlet end of the air compressor module is connected with a gas supply pipe, the gas supply pipe is connected with a bypass gas return pipe, the bypass gas return pipe is connected with a proportioning valve, the output end of the proportioning valve is connected with a gas delivery pipe, and the output end of the gas delivery pipe is connected with the gas storage tank. And the air delivery pipe is communicated with the air storage tank. When the amount of the needed gas is lower than the frequency conversion lower limit of the air compressor, the opening proportion of the proportioning valve can be adjusted according to the amount of the needed gas and the output amount of the air compressor module, so that the gas is proportionally recycled to the gas storage tank according to the output amount of the air compressor module, and gas waste, especially some special gas, is avoided; and the energy-saving effect can be effectively achieved. Meanwhile, the exhaust pressure can be stabilized while the air quantity is controlled, so that the pressure can be controlled.

Description

Technical Field

[0001] The utility model relates to a controllable high-pressure reflux device for a gas booster. Background Art

[0002] In a high-pressure gas system, the role of the compressor is to compress the gas to the required high pressure while maintaining the purity and temperature of the gas.

[0003] When we need to obtain high-pressure compressed gas, we need to pressurize the gas. After the air compressor is pressurized, the gas pressure is not particularly stable and cannot meet the requirements of use. When the gas volume and pressure need to be lowered, the air compressor's own frequency conversion can be used to control it, but the air compressor's own frequency conversion has a lower limit. When the frequency conversion cannot reach the required lower limit, the excess gas discharged will cause waste. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a controllable high-pressure reflux device for a gas booster that recovers gas sources according to frequency conversion requirements.

[0005] A controllable high-pressure reflux device for a gas booster designed for this purpose comprises an air compressor module and an air storage tank, wherein the air outlet end of the air compressor module is connected to an air supply pipe, the air supply pipe is connected to a bypass air return pipe, the bypass air return pipe is connected to a proportional regulating valve, the output end of the proportional regulating valve is connected to an air supply pipe, and the air supply pipe is connected to the air storage tank.

[0006] Preferably, the air compressor module at least comprises a compressor unit, an oil-gas separator and a cooler, wherein the first output end of the compressor unit is connected to the input end of the oil-gas separator, and the output end of the oil-gas separator is connected to the input end of the cooler;

[0007] The gas output end of the cooler is the gas outlet end of the air compressor module, which is used to connect to the gas supply pipe.

[0008] Compared with the prior art, the utility model is characterized in that an air supply pipe is connected to the air outlet end of the air compressor module, the air supply pipe is connected to a bypass return pipe, the bypass return pipe is connected to a proportional regulating valve, the output end of the proportional regulating valve is connected to a gas delivery pipe, and the gas delivery pipe is interconnected with the gas storage tank. When the required gas volume is lower than the lower limit of the air compressor's own frequency conversion, the utility model can adjust the opening ratio of the proportional regulating valve according to the required gas volume and the output gas volume of the air compressor module, so as to recover the gas volume of the air compressor module in proportion to the output gas volume to the gas storage tank, so as to avoid gas waste, especially some special gases, and can effectively play a role in energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1This is one of the three-dimensional structural schematic diagrams of the utility model;

[0010] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0011] Figure 3 This is the third schematic diagram of the three-dimensional structure of the present utility model. DETAILED DESCRIPTION

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] See also Figure 1-Figure 3 A controllable high-pressure reflux device for a gas booster includes an air compressor module 10 and an air storage tank 20. The air outlet of the air compressor module 10 is connected to an air supply pipe 150, and the air supply pipe 150 is connected to a bypass return pipe 160. The bypass return pipe 160 is connected to a proportional regulating valve 30. The output end of the proportional regulating valve 30 is connected to a gas supply pipe 40, and the gas supply pipe 40 is interconnected with the air storage tank 20. When the required gas volume is lower than the lower limit of the air compressor's own frequency conversion, the utility model can adjust the opening ratio of the proportional regulating valve according to the required gas volume and the output gas volume of the air compressor module, so as to recycle the gas volume proportionally to the air storage tank according to the output gas volume of the air compressor module, so as to avoid gas waste, especially for some special gases, and can effectively play a role in energy saving. At the same time, the utility model can stabilize the exhaust pressure while controlling the gas volume to achieve pressure control.

[0014] Furthermore, the proportional control valve adopts a pneumatic or electric proportional control valve.

[0015] Furthermore, the gas supply pipe 150 is provided with a pressure sensor, which is used to detect the gas pressure output by the gas supply pipe 150, so as to adjust the opening ratio of the proportional control valve and the frequency of the air compressor module 10 according to the pressure data of the pressure sensor. Not only can the gas be recycled according to the use demand, but also the installation hidden dangers such as excessive pressure and pipeline rupture caused by blockage of the gas supply pipe 150 can be avoided.

[0016] See also Figure 2 The air compressor module 10 at least includes a compressor unit 110, an oil-gas separator 120 and a cooler 130, wherein the first output end of the compressor unit 110 is connected to the input end of the oil-gas separator 120, and the output end of the oil-gas separator 120 is connected to the input end of the cooler 130;

[0017] The gas output end of the cooler 130 is the gas outlet end of the air compressor module 10 , and is used to connect to the gas supply pipe 150 .

[0018] Furthermore, the compressor unit 110 and the oil-gas separator 120 are connected to each other through a first pipeline 100 , and the oil-gas separator 120 and the cooler 130 are connected to each other through a second pipeline 140 .

[0019] The compressor unit 110 delivers the high-pressure gas to the oil-gas separator 120 . After the oil-gas separator 120 separates the oil from the high-pressure gas, it delivers the high-pressure gas to the cooler 130 through the second pipeline 140 . Finally, the high-pressure gas is output from the gas supply pipe 150 or enters the bypass return pipe 160 .

[0020] Furthermore, the gas storage tank 20 is connected to a gas outlet pipe 200 .

[0021] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A controllable high-pressure reflux device for a gas booster, comprising an air compressor module (10) and a gas storage tank (20), characterized in that: The air outlet end of the air compressor module (10) is connected to an air supply pipe (150), the air supply pipe (150) is connected to a bypass return pipe (160), the bypass return pipe (160) is connected to a proportional control valve (30), the output end of the proportional control valve (30) is connected to an air supply pipe (40), and the air supply pipe (40) is connected to the air storage tank (20).

2. A controllable high-pressure reflux device for a gas booster according to claim 1, characterized in that: The air compressor module (10) comprises at least a compressor unit (110), an oil-gas separator (120) and a cooler (130); a first output end of the compressor unit (110) is connected to an input end of the oil-gas separator (120), and an output end of the oil-gas separator (120) is connected to an input end of the cooler (130); The gas output end of the cooler (130) is the gas outlet end of the air compressor module (10), and is used to connect to the gas supply pipe (150).

3. A controllable high-pressure reflux device for a gas booster according to claim 1, characterized in that: The air supply pipe (150) is provided with a pressure sensor.

4. A controllable high-pressure reflux device for a gas booster according to claim 1, characterized in that: The gas storage tank (20) is connected to a gas outlet pipe (200).

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