CN211780115U

CN211780115U - Automatic oil supply mechanism for expansion machine

Info

Publication number: CN211780115U
Application number: CN202020252992.8U
Authority: CN
Inventors: 贺根深; 王武兵; 苏福荣; 高维军; 缪绍平
Original assignee: Ningde Yingde Gas Co ltd
Current assignee: Ningde Yingde Gas Co ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-10-27
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses an automatic oil supply mechanism for expander, including expander device and flow control valve, the first defeated oil pipe of lubricated epaxial side fixedly connected with of expander device, flow control valve's surface is provided with flow control valve, the top fixedly connected with shunt tubes of first defeated oil pipe, the defeated oil pipe of one side fixedly connected with second of shunt tubes, the other end fixedly connected with that the second was defeated oil pipe takes out oil pipe, it is located lubricating-oil tank's inside bottom internal surface to take out oil pipe, ventilative post has been seted up to lubricating-oil tank's top surface. The utility model discloses an defeated oil pipe of flow control valve, shunt tubes, second, take out oil pipe and lubricating-oil tank and constitute fuel feeding mechanism, can regard as the emergent fuel feeding when oil pump damage or trouble through its fuel feeding mechanism, guarantee bearing continuous lubrication when the oil pump trouble, avoided the risk of bearing oil break when the oil pump trouble, great improvement bearing moving stability, implement low cost, the practicality is strong.

Description

Automatic oil supply mechanism for expansion machine

Technical Field

The utility model relates to a bearing lubrication field specifically is an automatic oil supply mechanism for expander.

Background

The main principle of the turbo expander is that gas with certain pressure is utilized to perform adiabatic expansion in the turbo expander to do work externally to consume internal energy of the gas, so that the gas is cooled strongly to achieve the purpose of refrigeration.

The rotor is the most important part of the expander, and is directly related to the refrigerating effect, the operation stability, the reliability and the service life of the expander. The rotor is supported by bearings, which are important parts in order to allow the rotor to operate stably and reliably for a long period of time. The bearing of the expander mostly adopts a dynamic pressure oil bearing, and is a non-contact liquid lubricating oil bearing, which maintains the gap between a shaft and the bearing by means of lubricating oil, so that the bearing is not abraded due to the contact with the shaft, and simultaneously, the bearing is cooled, and heat generated by friction between a main shaft and the lubricating oil during high-speed rotation is taken away, so that the supply of a certain amount of clean lubricating oil to the bearing is also an important work for ensuring the normal work of the bearing.

The existing expander has the hidden trouble problem that the oil supply is insufficient instantly to cause the burning of parts such as a bearing and the like when an oil pump fails, so that the risk that the bearing burns a journal and a bearing bush due to the oil cut is increased, particularly, the risk is further increased along with the increase of the specification and the increase of the rotating speed, and the potential threat is formed on the reliable operation of the bearing;

in addition, the oil inlet of current oil tank is mostly the screw cap and seals, nevertheless because the inside of oil tank is lubricating oil, remains lubricating oil in oil inlet department very easily when pouring into, leads to the screw cap to be difficult to seal completely, and when inside high temperature, expanding gas will not seal good screw cap and push away very easily.

Therefore, it is necessary to provide an automatic oil supply mechanism for an expander to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic oil feeding mechanism for expander to solve the problem of the fuel feeding and the oil cap that provide among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic oil supply mechanism for an expander comprises an expander device and a flow regulating valve, wherein a first oil delivery pipe is fixedly connected above a lubricating shaft of the expander device, the outer surface of the flow regulating valve is provided with the flow regulating valve, the top end of the first oil delivery pipe is fixedly connected with a shunt pipe, one side of the shunt pipe is fixedly connected with a second oil delivery pipe, the other end of the second oil delivery pipe is fixedly connected with an oil pumping pipe, the oil pumping pipe is positioned on the inner bottom end inner surface of a lubricating oil tank, the top end outer surface of the lubricating oil tank is provided with an air permeable column, the top end outer wall of the lubricating oil tank is provided with an oil filling hole, the top end outer surface of the lubricating oil tank is fixedly provided with a first slide rail, the inner movable sleeve of the first slide rail is provided with a sliding oil cover, the other side of the sliding oil cover is fixedly sleeved with, the fixed welding in right side of first connecting block has the second connecting block, the fixed welding in other end of second connecting block has the slider, the left side fixedly connected with reset spring of slider, reset spring's the fixed welding in other end has the spring spacing groove, the apparent fixed mounting in right side of slider has first activity pivot, the external fixed welding of first activity pivot has first block pole, the bottom of slider cover has the second slide rail, the top external fixed surface of lubricating-oil tank installs the second activity pivot, the external welded of second activity pivot has the second block pole.

Preferably, the lubricating oil tank has a separate body, the lubricating oil tank being fixed to an outer surface of the expander device, the lubricating oil tank being assembled with the expander device in an integral structure.

Preferably, the outer surface of the oil pumping pipe is provided with an oil hole, the right side of the lubricating oil tank is provided with a round hole matched with the second oil delivery pipe to be connected with the oil pumping pipe, and the second oil delivery pipe and the lubricating oil tank are in a sealing design.

Preferably, the lubricating oil tank is connected with a second oil delivery pipe through an oil pumping pipe, the second oil delivery pipe is connected with a first oil delivery pipe through a shunt pipe, and the first oil delivery pipe is connected with the expansion device through the first oil delivery pipe.

Preferably, the inside of ventilative post is provided with the dust screen.

Preferably, the size of oil filler point and the size phase-match of slip oil cover, first block pole is the design of L style of calligraphy, the second block pole also is the design of L style of calligraphy, the size phase-match of first block pole and second block pole.

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

1. this automatic oil supply mechanism for expander constitutes oil supply mechanism through flow control valve, shunt tubes, defeated oil pipe of second, oil pumping pipe and lubricating-oil tank, can regard as the emergent fuel feeding when oil pump damage or trouble through its oil supply mechanism, guarantees bearing continuous lubrication when the oil pump trouble, has avoided the risk of bearing oil break when the oil pump trouble, great improvement bearing moving stability, and implement low cost, the practicality is strong.

2. This automatic oil feed mechanism for expander constitutes the slip enclosed construction through first slide rail, slip oil cover and two-sided slide rail, can avoid the oil inlet if the lubricating oil of contact just can not the confined condition through the slip enclosed construction, and more convenient fast than the installation and the dismantlement of screw thread lid.

3. This automatic oil feeding mechanism for expander constitutes the flexible block structure of elasticity through first connecting block, second connecting block, slider, reset spring, spring spacing groove, first activity pivot, first block pole, second slide rail, second activity pivot and second block pole, can fix the slip oil cover through the flexible block structure of its elasticity, prevents that it from not having fixed mode, leads to the top of its slip oil cover because of the vibrations of expander device roll-off slip oil cover.

Drawings

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

FIG. 2 is a schematic front view of the structure of the present invention;

fig. 3 is a schematic top sectional view of the structure of the lubricating oil tank of the present invention;

fig. 4 is a schematic view of the lubricating oil tank of the present invention.

In the figure: 1. an expander device; 2. a first oil delivery pipe; 3. a flow regulating valve; 4. a shunt tube; 5. a second oil delivery pipe; 6. an oil pumping pipe; 7. a lubricating oil tank; 8. a gas permeable column; 9. an oil filler hole; 10. a first slide rail; 11. sliding the oil cover; 12. a double-sided slide rail; 13. a first connection block; 14. a second connecting block; 15. a slider; 16. a return spring; 17. a spring limiting groove; 18. a first movable rotating shaft; 19. a first engaging lever; 20. a second slide rail; 21. a second movable rotating shaft; 22. a second engaging rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment:

an automatic oil supply mechanism for an expander comprises an expander device 1 and a flow regulating valve 3, a first oil pipeline 2 is fixedly connected above a lubricating shaft of the expander device 1, the flow regulating valve 3 is arranged on the outer surface of the flow regulating valve 3, a shunt pipe 4 is fixedly connected at the top end of the first oil pipeline 2, a second oil pipeline 5 is fixedly connected at one side of the shunt pipe 4, an oil pumping pipe 6 is fixedly connected at the other end of the second oil pipeline 5, the oil pumping pipe 6 is positioned on the inner bottom end inner surface of a lubricating oil tank 7, the lubricating oil tank 7 is provided with an independent box body, the lubricating oil tank 7 is fixed on the outer surface of the expander device 1, the lubricating oil tank 7 and the expander device 1 are assembled into an integral structure, the outer surface of the oil pumping pipe 6 is provided with an oil hole, the right side of the lubricating oil tank 7 is provided with a round hole matched with the, the lubricating oil tank 7 is connected with the second oil delivery pipe 5 through the oil pumping pipe 6, the second oil delivery pipe 5 is connected with the first oil delivery pipe 2 through the shunt pipe 4, the first oil delivery pipe 2 is connected with the expander device 1 through the first oil delivery pipe 2, the oil supply mechanism can be formed by the flow regulating valve 3, the shunt pipe 4, the second oil delivery pipe 5, the oil pumping pipe 6 and the lubricating oil tank 7, the oil supply mechanism can be used as emergency oil supply for oil pump damage or fault, continuous lubrication of the bearing is ensured when the oil pump fails, the risk of oil break of the bearing when the oil pump fails is avoided, the running stability of the bearing is greatly improved, the implementation cost is low, and the practicability is strong;

the outer surface of the top end of the lubricating oil tank 7 is provided with a ventilation column 8, a dust screen is arranged inside the ventilation column 8, dust can be prevented from directly falling into the lubricating oil tank 7 through the ventilation column 8 due to the arrangement of the dust screen, the outer wall of the top end of the lubricating oil tank 7 is provided with an oil filling hole 9, a first slide rail 10 is fixedly arranged on the outer surface of the top end of the lubricating oil tank 7, a sliding oil cover 11 is movably sleeved inside the first slide rail 10, and a double-sided slide rail 12 is fixedly sleeved on the other side of the sliding oil cover 11, so that a sliding closed structure is formed by the first slide rail 10, the sliding oil cover 11 and the double-sided slide rail 12, the situation that an oil inlet cannot be closed if lubricating oil is contacted can be avoided through the sliding closed structure, and the;

a first connecting block 13 is fixedly welded on one side of the sliding oil cover 11, a second connecting block 14 is fixedly welded on the right side of the first connecting block 13, a sliding block 15 is fixedly welded on the other end of the second connecting block 14, a return spring 16 is fixedly connected on the left side of the sliding block 15, a spring limiting groove 17 is fixedly welded on the other end of the return spring 16, a first movable rotating shaft 18 is fixedly installed on the right side of the sliding block 15, a first clamping rod 19 is fixedly welded on the outer surface of the first movable rotating shaft 18, a second sliding rail 20 is sleeved at the bottom end of the sliding block 15, a second movable rotating shaft 21 is fixedly installed on the outer surface of the top end of the lubricating oil tank 7, a second clamping rod 22 is welded on the outer surface of the second movable rotating shaft 21, the size of the oil injection hole 9 is matched with the size of the sliding oil cover 11, the first clamping rod 19 is in an L-shaped design, the second clamping rod 22 is also in an, the elastic force telescopic clamping structure can be formed by the first connecting block 13, the second connecting block 14, the sliding block 15, the reset spring 16, the spring limiting groove 17, the first movable rotating shaft 18, the first clamping rod 19, the second sliding rail 20, the second movable rotating shaft 21 and the second clamping rod 22, the sliding oil cover 11 can be fixed through the elastic force telescopic clamping structure, the fixing mode is prevented, and the sliding oil cover 11 slides out of the upper portion of the sliding oil cover 11 due to the vibration of the expansion machine device 1.

The working principle is as follows: when an oil pump fails or is damaged, lubricating oil in a lubricating oil tank 7 is extracted through an oil extracting pipe 6, the lubricating oil is extracted through the oil extracting pipe 6 and then is transmitted to a second oil conveying pipe 5, the lubricating oil is stored in the second oil conveying pipe 5 and then is transmitted to a first oil conveying pipe 2 through a flow dividing pipe 4, the oil quantity can be adjusted through a flow adjusting valve 3 when the lubricating oil enters the first oil conveying pipe 2, and the lubricating oil can enter each lubricating point in an expander device 1 to be lubricated after being adjusted, so that the hidden danger problem that components such as bearings are burnt due to instant insufficient oil supply when other oil pumps fail is avoided;

when the oil cover needs to be sealed, the sliding oil cover 11 is pushed to the upper side of the oil filling hole 9 through the first slide rail 10 and the double-sided slide rail 12, when the sliding oil cover 11 is pushed, the first connecting block 13 is driven to move, when the first connecting block 13 moves, the second connecting block 14 is driven to move, when the second connecting block 14 moves, the sliding block 15 is driven to move, when the sliding block 15 moves, the return spring 16 is pulled to stretch, when the return spring 16 stretches, the position is limited through the spring limiting groove 17, when the sliding block 15 stretches the return spring 16 to move, the first clamping rod 19 is driven to move, when the first clamping rod 19 moves to the second clamping rod 22, the first clamping rod 19 is clamped with the second clamping rod 22 through the first movable rotating shaft 18 and the second movable rotating shaft 21, and the oil cover 11 can be slid to limit by stretching through the return spring 16, so that the sliding oil cover 11 is prevented from sliding out of the upper part of the oil filling hole 9 due to the vibration of the expander device 1.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an automatic oil feeding mechanism for expander, includes expander device (1) and flow control valve (3), its characterized in that: the lubricating oil pipe structure is characterized in that a first oil delivery pipe (2) is fixedly connected to the upper portion of a lubricating shaft of the expansion machine device (1), a flow regulating valve (3) is arranged on the outer surface of the flow regulating valve (3), a shunt pipe (4) is fixedly connected to the top end of the first oil delivery pipe (2), a second oil delivery pipe (5) is fixedly connected to one side of the shunt pipe (4), an oil pumping pipe (6) is fixedly connected to the other end of the second oil delivery pipe (5), the oil pumping pipe (6) is located on the inner bottom inner surface of a lubricating oil tank (7), an air permeable column (8) is arranged on the outer surface of the top end of the lubricating oil tank (7), an oil filling hole (9) is formed in the outer wall of the top end of the lubricating oil tank (7), a first sliding rail (10) is fixedly mounted on the outer surface of the top end of, the fixed pot head of opposite side of slip oil cap (11) has two-sided slide rail (12), the fixed welding of one side of slip oil cap (11) has first connecting block (13), the fixed welding of right side of first connecting block (13) has second connecting block (14), the fixed welding of the other end of second connecting block (14) has slider (15), the left side fixedly connected with reset spring (16) of slider (15), the fixed welding of the other end of reset spring (16) has spring spacing groove (17), the outside fixed mounting in right side of slider (15) has first activity pivot (18), the outside fixed welding of first activity pivot (18) has first block pole (19), the bottom pot head of slider (15) has second slide rail (20), the outside fixed mounting in top of lubricating-oil tank (7) has second activity pivot (21), and a second clamping rod (22) is welded on the outer surface of the second movable rotating shaft (21).

2. The automatic oil supply mechanism for an expander according to claim 1, wherein: the lubricating oil tank (7) is provided with an independent tank body, the lubricating oil tank (7) is fixed on the outer surface of the expansion device (1), and the lubricating oil tank (7) and the expansion device (1) are assembled into an integral structure.

3. The automatic oil supply mechanism for an expander according to claim 1, wherein: the outer surface of the oil pumping pipe (6) is provided with an oil hole, the right side of the lubricating oil tank (7) is provided with a round hole matched with the second oil conveying pipe (5) to be connected with the oil pumping pipe (6), and the second oil conveying pipe (5) and the lubricating oil tank (7) are in a sealing design.

4. The automatic oil supply mechanism for an expander according to claim 1, wherein: lubricating-oil tank (7) are connected with second defeated oil pipe (5) through oil extraction pipe (6), second defeated oil pipe (5) are connected with first defeated oil pipe (2) through shunt tubes (4), first defeated oil pipe (2) are connected with expander device (1) through first defeated oil pipe (2).

5. The automatic oil supply mechanism for an expander according to claim 1, wherein: and a dust screen is arranged in the air permeable column (8).

6. The automatic oil supply mechanism for an expander according to claim 1, wherein: the size of oil filler point (9) and the size phase-match of slip oil cap (11), first block pole (19) are L style of calligraphy design, second block pole (22) also are L style of calligraphy design, the size phase-match of size and second block pole (22) of first block pole (19).