Air flow control structure of air compressor

Abstract

According to the air quantity control structure of the air compressor, the air quantity control pipeline is additionally arranged on the basis of an original air control pipeline of the air compressor, the electromagnetic valve on the air quantity control pipeline can be connected in the initial drilling stage of a drilling machine, and a control air source is introduced into the valve closing cavity of the air inlet valve through the air quantity control pipeline; therefore, the air inlet valve is partially closed, and low air volume required by the initial tapping stage is obtained; the electromagnetic valve is closed after drilling is completed, conventional full-gas-volume work can be conducted, operation is easy and convenient, one-key switching can be achieved according to the actual use working condition, and the drilling forming rate and the working efficiency are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air compressor technical field, concretely relates to a kind of air volume control structure of air compressor. BACKGROUND

[0002] When air compressor is used with drilling rig, the air volume required in the initial hole opening stage of drilling rig can be only about half of normal state, and excessive air volume can affect the hole forming. The air volume adjustment of conventional air compressor is automatically adjusted according to the pressure of compressed air at the rear end, and the air volume is continuously supplied when the pressure does not reach the set value, so the operator cannot manually adjust the air volume in the initial hole opening stage. SUMMARY

[0003] Therefore, the embodiment of the utility model provides an air volume control structure of air compressor, so that the operator can manually adjust the air volume in the initial hole opening stage of drilling rig.

[0004] The air volume control structure of air compressor provided by the embodiment of the utility model comprises an air inlet valve, a compressor host and an oil-gas separator, the air outlet end of the air inlet valve is communicated to the air inlet end of the compressor host, the air outlet end of the compressor host is communicated to the air inlet end of the oil-gas separator, and the air outlet end of the oil-gas separator is communicated to the control port of the air inlet valve through a gas control pipeline. The air volume control structure further comprises an air volume control pipeline, the air inlet end of the air volume control pipeline is communicated to the air outlet end of the oil-gas separator, and the air outlet end of the air volume control pipeline is communicated to the valve closing cavity of the air inlet valve. The air volume control pipeline is sequentially provided with a pressure reducing valve and a solenoid valve along the gas flow direction of the air volume control pipeline.

[0005] Optionally, a pressure gauge is arranged between the pressure reducing valve and the solenoid valve.

[0006] The embodiment of the utility model has the following beneficial effects: on the basis of the original gas control pipeline of air compressor, the solenoid valve on the air volume control pipeline can be connected in the initial hole opening stage of drilling rig, the control gas source is introduced into the valve closing cavity of the air inlet valve through the air volume control pipeline, so that the air inlet valve is partially closed, and the low air volume required in the initial hole opening stage is obtained. After the hole opening is completed, the solenoid valve is closed, and the conventional full air volume work can be carried out, which is simple and convenient to operate, can be one-key switched according to actual use conditions, and effectively improves the hole forming rate and working efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0007] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0008] Figure 1 Structure diagram of the embodiment of the present application;

[0009] The numbers in the figure represent:

[0010] 1, air inlet valve; 2, compressor host; 3, oil-gas separator; 4, gas control pipeline; 5, pressure reducing valve; 6, electromagnetic valve; 7, pressure gauge. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0012] Please refer to Figure 1 The embodiment of the present application provides a gas control structure of an air compressor, which comprises an air inlet valve 1, a compressor host 2 and an oil-gas separator 3. The air outlet end of the air inlet valve 1 is communicated to the air inlet end of the compressor host 2, the air outlet end of the compressor host 2 is communicated to the air inlet end of the oil-gas separator 3, and the air outlet end of the oil-gas separator 3 is communicated to the control port of the air inlet valve 1 through a gas control pipeline, so that the gas control pipeline can introduce the compressed gas separated by the oil-gas separator 3 into the air inlet valve 1 as a control gas source.

[0013] On this basis, the embodiment of the present application adds a gas control pipeline 4. The air inlet end of the gas control pipeline 4 is communicated to the air outlet end of the oil-gas separator 3, and the air outlet end is communicated to the valve closing cavity of the air inlet valve 1. A pressure reducing valve 5 and an electromagnetic valve 6 are sequentially arranged on the gas control pipeline 4 along the gas flow direction thereof, and a pressure gauge 7 can also be arranged between the pressure reducing valve 5 and the electromagnetic valve 6.

[0014] When the air compressor is running, the gas control pipeline automatically adjusts the gas amount of the air inlet valve 1 according to the running state of the equipment. At the same time, the operator can connect the electromagnetic valve 6 on the gas control pipeline 4 according to the actual use condition of the drilling machine at the initial stage of hole opening, introduce the control gas source into the valve closing cavity of the air inlet valve 1 through the gas control pipeline 4, thereby partially closing the air inlet valve 1, and obtain the required low gas amount at the initial stage of hole opening (the set value of the pressure reducing valve 5 is specifically set according to the gas amount requirement at the initial stage of hole opening). After the hole opening is completed, the electromagnetic valve 6 is closed, and the gas control pipeline can be used for normal full gas amount work. The operation is simple and convenient, the actual use condition can be switched by one key, and the hole forming rate and the working efficiency are effectively improved.

[0015] The air control pipeline in the embodiment of the utility model can directly adopt a conventional air control pipeline structure (for example, the air control pipeline structure disclosed in the prior art with the authorized announcement number CN112576490B), and can also be redesigned according to the equipment operation condition, since the air volume control pipeline 4 in the embodiment of the utility model is independent of the air control pipeline and does not interfere with each other, so it is not necessary to excessively limit the air control pipeline.

[0016] The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used to help understand the technical scheme and core idea of the utility model; the ordinary skilled in the art should understand that the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model.

Claims

1. An air volume control structure of an air compressor, comprising an air inlet valve, a compressor main machine and an oil-gas separator, an air outlet end of the air inlet valve being communicated to an air inlet end of the compressor main machine, an air outlet end of the compressor main machine being communicated to an air inlet end of the oil-gas separator, and an air outlet end of the oil-gas separator being communicated to a control port of the air inlet valve through an air control pipeline; characterized in that: The gas volume control pipeline is provided with a pressure reducing valve and an electromagnetic valve in sequence along the gas flow direction.

2. The air volume control structure of an air compressor according to claim 1, characterized by: A pressure gauge is arranged between the pressure reducing valve and the electromagnetic valve.

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