CN214007513U

CN214007513U - Gravity oil return assembly of air compressor

Info

Publication number: CN214007513U
Application number: CN202022839949.4U
Authority: CN
Inventors: 朱春来; 张碧霞; 杨超
Original assignee: Suzhou Zenix Compressor Co ltd
Current assignee: Suzhou Zenix Compressor Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-08-20
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses an air compressor machine gravity oil return assembly, this kind of air compressor machine gravity oil return assembly include oil branch bucket, oil content core seat and oil return device, the oil content core is equipped with in the oil branch bucket, is equipped with the oil content core seat in the oil content core, and oil content core seat upper portion is provided with two air inlets, and oil content core seat is connected to the outside, is provided with the annular groove on the tray of oil branch bottom of the barrel portion, annular groove connection oil return device, and the oil gas mixture passes through the oil content core, and the liquid oil of surface interception drips from surface oil branch bottom of the barrel portion, filters the back gas and discharges from oil content core seat, and liquid oil drips to assemble oil return device after the annular groove. In this way, the utility model discloses compact structure, design benefit can solve compressor return oil gas and reveal, promotes the compression performance, saves useless function, and it is big that just oil drips to pass through the passageway when playing energy-conserving efficiency, difficult jam.

Description

Gravity oil return assembly of air compressor

Technical Field

The utility model relates to a terminal technical field especially relates to an air compressor machine gravity oil return assembly.

Background

A pair of spiral male and female rotors meshed with each other are arranged in a cylinder of a screw compressor, the rotors are provided with a plurality of concave teeth and rotate in opposite directions, gaps between the rotors and between a shell and the rotors are only 5-10 threads, the main rotor is driven by a motor, the other rotor is driven by an oil film formed by oil injection of the main rotor, the rotors generate high temperature in the process of compressing gas, cold lubricating oil needs to be injected for cooling, the lubricating oil and the compressed gas are mixed into one strand, oil and gas need to be separated, and the oil is made to be suitable for circulation in a system.

Most of oil-gas mixture sprayed by a compressor is subjected to oil-gas separation in the course of coarse separation, the separated oil returns to a main machine through an oil pipe, compressed air is subjected to secondary fine separation through a separation core, the finely separated oil returns to the main machine again, so that secondary oil return is realized, an oil return one-way valve is used on a secondary oil return oil way, in order to prevent the compressed gas from returning to the main machine from a secondary oil return pipe to be repeatedly compressed and repeatedly consumed, the drift diameter of the one-way valve on the secondary oil return pipe is controlled in a small range according to the separation amount of the machine in the general industry, the oil return is just enough without air leakage, the drift diameter is in a range of 0.5mm-2.0mm, because the drift diameter is too small, impurities sucked by an air compressor are easy to block the oil return one-way valve, the secondary oil return cannot be caused, the oil is accumulated more, and finally the oil is taken away by the compressed air, so that the machine cannot be lubricated and cooled by the oil after the oil of the machine is lost, the machine can report the fault shutdown and even the irreparable abrasion caused by the oil shortage, and based on the defects and shortcomings, the prior art needs to be improved, and the gravity oil return assembly of the air compressor is designed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an air compressor machine gravity oil return assembly, compact structure, design benefit can solve compressor oil return gas and reveal, promotes the compression performance, saves useless function, and it is big through the passageway to just drip when playing energy-conserving efficiency, is difficult for blockking up.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an air compressor machine gravity oil return assembly, this kind of air compressor machine gravity oil return assembly include oil branch bucket, oil content core holder and oil return device, the oil content core is equipped with in the oil branch bucket, is equipped with the oil content core holder in the oil content core, and oil content core holder upper portion is provided with two air inlets, and the oil content core holder is connected to the outside, is provided with the annular groove on the tray of oil branch bucket bottom, and annular groove connects oil return device, and oil-gas mixture passes through the oil content core, and the liquid oil of surface interception drips from the surface and flows to oil branch bucket bottom, and gaseous oil content core holder discharge is followed to the filtration back, and liquid oil drips to assemble the oil return device after the annular groove.

Preferably, the oil return device comprises an oil collection cavity, an oil collection cavity seat, a pipe joint, an oil return pipe, a stainless steel floating ball and a silica gel ring, the oil collection cavity communicated with the annular groove is installed at the bottom of the tray, the oil collection cavity seat is installed at the bottom of the oil collection cavity, the oil collection cavity seat is connected with the oil return pipe through the pipe joint at the bottom, the oil return pipe is connected to the main engine of the air compressor, the stainless steel floating ball is installed in the oil collection cavity, the silica gel ring is embedded in the upper portion and the lower portion of the oil collection cavity, and a central hole is formed in the silica gel ring.

Preferably, gaps are arranged between the two sides of the stainless steel floating ball and the inner wall of the oil collecting cavity, the gaps are 0.5mm, and the gaps are large and are not easy to block an oil return system.

Compared with the prior art, the beneficial effects of the utility model are that:

the stainless steel floating ball has a 0.5mm gap with the periphery of the inner wall of the oil collecting cavity, the gap is large, an oil return system is not easy to block, the gap between the stainless steel floating ball and the inner wall of the oil collecting cavity is controlled, the stainless steel floating ball can float to the central hole of the silica gel ring from top to bottom at the central position, the small hole is blocked to play a sealing role, and oil can flow to the lower side of the floating ball from the periphery;

when the air compressor machine shut down, the stainless steel floater on the refluence top of air current, above silica gel circle and stainless steel floater are sealed, prevent that the backward flow of compression host computer oil from reaching the oil core.

Conventional mode oil return passage is the normal open state always, and lubricating oil can get back to the host computer, and compressed gas also can get back to the host computer end of breathing in, and this just has formed interior the revealing, and this patent scheme solves compressor oil return gas and reveals, promotes compression performance, saves useless function, and it is big that just oil drips through the passageway when playing energy-conserving efficiency, difficult jam.

Drawings

Fig. 1 is a schematic structural diagram of a gravity oil return assembly of an air compressor.

Fig. 2 is a cross-sectional view of an air compressor gravity oil return assembly.

Fig. 3 is an internal structure schematic diagram of an air compressor gravity oil return assembly.

Fig. 4 is a schematic structural diagram of an oil return device of a gravity oil return assembly of an air compressor.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.

Referring to fig. 1 to 4, an embodiment of the present invention includes:

the utility model provides an air compressor machine gravity oil return assembly, this kind of air compressor machine gravity oil return assembly includes oil branch bucket 1, oil content core 2, oil content core print 3 and oil return device 4, oil content core 2 is equipped with in the oil branch bucket 1, and oil content core print 3 is equipped with in the

oil content core

2, and 3 upper portions of oil content core print are provided with two air inlets 30, and oil content core print 3 is connected to the outside, is provided with annular groove 10 on the tray of oil branch bucket 1 bottom, and oil return device 4 is connected to annular groove 10, and oil gas mixture passes through oil content core 2, and the liquid oil drop of surface interception flows to oil branch bucket 1 bottom from the surface, and gaseous 3 dischargings from oil content core print after filtering, and liquid oil drop gathers oil return device 4 after collecting annular groove 10.

The oil return device 4 comprises an oil collection cavity 41, an oil collection cavity seat 42, a pipe joint 43, an oil return pipe 44, a stainless steel floating ball 45 and a silica gel ring 46, the oil collection cavity 41 communicated with the annular groove 10 is installed at the bottom of the tray, the oil collection cavity seat 42 is installed at the bottom of the oil collection cavity 41, the oil collection cavity seat 42 is connected with the oil return pipe 44 through the pipe joint 43 at the bottom, the oil return pipe 44 is connected to a main engine of the air compressor, the stainless steel floating ball 45 is installed in the oil collection cavity 41, the silica gel ring 46 is embedded on the upper portion and the lower portion of the oil collection cavity 41, and a central hole is formed in the silica gel ring 46.

Gaps are arranged between the two sides of the stainless steel floating ball 45 and the inner wall of the oil collecting cavity 41, the gaps are 0.5mm, the passing gaps are large, and an oil return system is not easy to block.

The utility model relates to an air compressor machine gravity oil return assembly during operation, oil gas mixture is through oil content core 2, the liquid oil drop of surface interception flows oil content bucket 1 bottom from the surface, gaseous 3 discharges from oil content core print seat after filtering, collect oil returning device 4 after liquid oil drop assembles annular groove 10, liquid oil enters into oil collecting cavity 41, be full of oil in oil collecting cavity 41, stainless steel floater 45 rises, oil is from the hole on the oil collecting cavity print seat 42 in proper order, coupling 43 and time oil pipe 44 flow out the host computer, after the collection oil casualties is accomplished, the centre bore on silica gel circle 46 is plugged up in the whereabouts of stainless steel floater 45, prevent gas loss, it is reciprocal to circulate once more when oil collecting cavity 41 is full of oil, when the air compressor shut down, the palirrhea stainless steel floater 45 of air current, it is sealed with stainless steel floater 45 to go up the silica gel circle, prevent to compress the host computer oil backward flow to the oil content core.

The utility model relates to an air compressor machine gravity oil return assembly, compact structure, design benefit can solve compressor oil return gas and reveal, promotes compression performance, saves useless function, and it is big through the passageway to just drip when playing energy-conserving efficiency, is difficult for blockking up.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an air compressor machine gravity oil return assembly which characterized in that: this kind of air compressor machine gravity oil return assembly includes oil branch bucket, oil content core print seat and oil return device, the oil content core is equipped with in the oil branch bucket, is equipped with the oil content core print seat in the oil content core, and oil content core print seat upper portion is provided with two air inlets, and the oil content core print seat is connected to the outside, is provided with the annular groove on the tray of oil branch bottom of the barrel portion, and oil return device is connected to the annular groove, and oil-gas mixture passes through the oil content core, and the liquid oil drop of surface interception flows to oil content barrel head portion from the surface, filters the back gas and discharges from oil content core print seat, and liquid oil drop assembles the oil return device of collecting behind the annular groove.

2. The air compressor machine gravity oil return assembly of claim 1, characterized in that: the oil return device comprises an oil collection cavity, an oil collection cavity seat, a pipe joint, an oil return pipe, a stainless steel floating ball and a silica gel ring, the oil collection cavity communicated with the annular groove is installed at the bottom of the tray, the oil collection cavity seat is installed at the bottom of the oil collection cavity, the oil collection cavity seat is connected with the oil return pipe through the pipe joint at the bottom, the oil return pipe is connected to a main engine of the air compressor, the stainless steel floating ball is installed in the oil collection cavity, the silica gel ring is embedded in the upper portion and the lower portion of the oil collection cavity, and a central hole is formed in the silica gel ring.

3. The air compressor machine gravity oil return assembly of claim 2, characterized in that: gaps are arranged between two sides of the stainless steel floating ball and the inner wall of the oil collecting cavity, and the gaps are 0.5 mm.