CN218296321U

CN218296321U - Multi-split oil return system

Info

Publication number: CN218296321U
Application number: CN202222443146.6U
Authority: CN
Inventors: 陈庆球
Original assignee: Nanning Leng Hui Air Conditioning Refrigeration Technology Service Co ltd
Current assignee: Nanning Leng Hui Air Conditioning Refrigeration Technology Service Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-13
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a many online oil return systems belongs to refrigeration plant technical field, including compressor, first oil separator and second oil separator, first oil separator is connected to the compressor, and second oil separator is connected to first oil separator, and first oil separator and second oil separator return compressor respectively. The second oil separator comprises a separation structure and an adjusting structure, the adjusting structure is located below the separation structure, the adjusting structure comprises a shielding piece and a rotating piece, the rotating piece is installed in the shielding piece and is tightly attached to the shielding piece, a first notch is formed in the rotating piece, a second notch is formed in the shielding piece, the rotating piece is controlled to enable the first notch and the second notch to be staggered, the size of the notch is controlled, the backflow amount is controlled, the control speed is reached, and the phenomenon that dirt flows back into the compressor can be further avoided. The second oil separator additionally arranged enables the compressor to be fully lubricated, avoids oil shortage to damage the compressor, and prolongs the service life of the compressor.

Description

Multi-split oil return system

Technical Field

The utility model relates to a refrigeration plant field, in particular to many online oil return systems.

Background

The compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. The motor is operated to drive the piston to compress the refrigerant gas, and the high-temperature and high-pressure refrigerant gas is discharged to the exhaust pipe to provide power for the refrigeration cycle.

In the existing multi-split air-conditioning system, a compressor continuously runs for a long time, a gas-liquid separator has incomplete gas-liquid separation, a small amount of frozen oil directly runs into a condenser or an inner machine, so that the oil return amount of the compressor is less, and the compressor is easy to be stuck and burnt after running for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel industry sewage sedimentation treatment device aims at installing secondary oil separator additional, adopts the direct oil return of capillary to the compressor to the secondary oil separator who installs additional can control oil backward flow speed and filter that the foreign matter is dirty.

In order to achieve the above object, the present invention provides a multi-split oil return system, which includes a compressor, a first oil separator and a second oil separator, wherein the compressor is connected to the first oil separator, the first oil separator is connected to the second oil separator, and the first oil separator and the second oil separator are respectively connected to the compressor;

the second oil separator comprises a separation structure and an adjusting structure, the adjusting structure is located below the separation structure, the adjusting structure comprises a shielding piece and a rotating piece, the rotating piece is installed in the shielding piece, one side wall of the shielding piece is tightly attached to the shielding piece, a first notch is formed in the shielding piece, a second notch is formed in the shielding piece, and the rotating piece is controlled to enable the first notch to be staggered with the second notch.

Optionally, the shielding element includes a first connection cap and a baffle, one end of the first connection cap is connected to the separation structure, and the baffle is located in the first connection cap and provided with the second notch.

Optionally, the rotating part comprises a stop block and a second connecting cap, the second connecting cap is sleeved on the stop block, the stop block is provided with the first notch, and the other end of the first connecting cap extends into the stop block to abut against the stop block.

Optionally, a first edge is arranged on the first connecting cap, a second edge is arranged on the separating structure, and the first edge and the second edge are connected to connect the first connecting cap and the separating structure together.

Optionally, the first connecting cap inner wall is provided with a yielding groove and a clamping groove communicated with the yielding groove.

Optionally, a boss is arranged on the stop block, the boss slides into the receding groove and is clamped into the clamping groove, and the rotating piece is arranged in the shielding piece.

Optionally, the inner wall of the first connecting cap is provided with a plurality of first protrusions, and a groove is formed between every two adjacent first protrusions.

Optionally, a second protrusion is disposed on the stopper, and the second protrusion is clamped in the groove.

Optionally, the separation structure includes a separation cylinder, a filter screen and a water filter plate, the filter screen and the water filter plate are installed in the separation cylinder, and the filter screen is located below the water filter plate.

Optionally, the separation cylinder comprises a cylinder body and a connecting pipe, and the connecting pipe is located at the bottom end of the cylinder body and is connected with the adjusting structure.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model discloses technical scheme's many online oil return systems are equipped with compressor, first oil separator and second oil separator, and first oil separator is connected to the compressor, and second oil separator is connected to first oil separator, and first oil separator and second oil separator return compressor respectively. The second oil separator comprises a separation structure and an adjusting structure, the adjusting structure is located below the separation structure, the adjusting structure comprises a shielding piece and a rotating piece, the rotating piece is installed in the shielding piece and is tightly attached to the shielding piece, a first notch is formed in the rotating piece, a second notch is formed in the shielding piece, the rotating piece is controlled to enable the first notch and the second notch to be staggered, the size of the notch is controlled, the backflow amount is controlled, the control speed is reached, and the phenomenon that dirt flows back into the compressor can be further avoided. The second oil separator who installs additional lets the compressor fully lubricated, avoids the lack of oil to damage the compressor, prolongs the life-span of compressor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic plan view of an embodiment of the multi-split oil return system of the present invention;

FIG. 2 is a schematic view of a structure of the second oil separator of FIG. 1;

figure 3 is a schematic view of the shield of figure 2;

FIG. 4 is a schematic view of a structure of the rotating member shown in FIG. 2;

fig. 5 is a schematic view of a separation structure of fig. 1.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a multi-split oil return system 100.

Referring to fig. 1, in an embodiment of the present invention, the multi-split oil return system 100 includes a compressor 10, a first oil separator 20, a second oil separator 30, a condenser 40, an expansion valve 50, and an internal unit 60. The compressor 10 is connected with the first oil separator 20, the first oil separator 20 is connected with the second oil separator 30, the second oil separator 30 is connected with the condenser 40, the condenser 40 is connected with the inner unit 60, an expansion valve 50 is arranged between the inner unit 60 and the condenser 40 to form a closed loop system, and the first oil separator 20 and the second oil separator 30 are respectively connected with the compressor 10 through oil return pipes.

Referring to fig. 1, in an embodiment of the present invention, a first air inlet 11, a first exhaust port 12 and an oil return port 13 are disposed on the compressor 10, the first oil separator 20 is provided with a second air inlet 21, a second exhaust port 22 and a first oil discharge port 23, the gas processed by the compressor 10 is discharged from the first exhaust port 12, the gas passes through the second air inlet 21 through an exhaust pipe and enters the first oil separator 20, the gas separated by the first oil separator 20 is discharged from the second exhaust port 22 and enters the second oil separator 30 through the exhaust pipe. The second separator 30 is provided with a third air inlet 311, a third air outlet 312 and a second oil outlet 313, and the oil separated by the first oil separator 20 and the second oil separator 30 flows out of the first oil outlet 23 and the second oil outlet 313 respectively, and reenters the compressor 10 from the oil return port 13 for lubrication.

The gas secondarily separated by the second oil separator 30 is discharged from the third gas outlet 312 and then enters the condenser 40, the gas treated by the condenser 40 passes through the expansion valve 50 and then enters the inner unit 60, and the gas evaporated by the inner unit 60 passes through the first gas inlet 11 through the gas discharge pipe and then returns to the compressor.

In this embodiment, the compressor 10 is a commercially available inverter compressor, the first oil separator 20 is a commercially available gas-liquid separator, and the pipeline connected to the first oil discharge port 23 is provided with an oil return solenoid valve 70 for controlling an oil return rate. The condenser 40 is a shell-and-tube condenser commonly available in the market, the expansion valve 50 is a common thermal expansion valve, and the indoor unit 60 is an evaporator commonly available in the market.

Referring to fig. 2, in an embodiment of the present invention, the second oil separator 30 includes a separating structure 31 and an adjusting structure 301, the adjusting structure 301 is located below the separating structure 31, and the adjusting structure 301 includes a shielding member 32 and a rotating member 33.

Referring to fig. 3, the shielding member 32 includes a first connecting cap 321 and a baffle 322, the baffle 322 is located in the first connecting cap 321 and is provided with a second notch 322a, one end of the first connecting cap 32 is provided with a first edge 323, an inner wall of the other end is provided with a plurality of first protrusions 324 and receding grooves 324a, and is provided with a clamping groove 321b communicated with the receding grooves 324a, and a groove 324a is formed between two adjacent first protrusions 324.

Referring to fig. 4, the rotating member 33 includes a second connecting cap 331 and a stop block 332, the second connecting cap 331 is sleeved on one end of the stop block 332, and the stop block 332 is provided with a first notch 332a and extends into the first connecting cap 321 to abut against the blocking plate 322 to be closely attached to the blocking plate 322. Be equipped with boss 332b on the dog 332, boss 332b slides in the groove 321a of stepping down and the card advances in the draw-in groove 321b, will rotate the piece 33 and install in the shielding part 22, the dog 332 periphery is provided with the protruding 331a of second, the protruding 331a card of second advances in the recess 324a, the wrench movement rotate the piece 33 and can make the protruding 331a of second breaks away from in original recess 324b gets into another recess 324a, play the dog 322 with the positioning action of second breach 322a coincidence angle provides simultaneously and also can provide the feel.

When the second notch 322a is completely staggered from the first notch 332a, the adjusting assembly 301 is in a closed state, and when the first notch 332a completely overlaps with the second notch 322a, the oil backflow speed reaches a maximum.

In this embodiment, the first connecting cap 321 is a hollow cylinder, the second connecting cap 331 has a hollow cylinder at an upper end, a hollow cone at a lower end, and a capillary tube at a lower end, four first notches 322a and four second notches 332a are fan-shaped, and each first notch 322a is equidistantly distributed and each second notch 332a is equidistantly distributed. The cross sections of the first protrusions 324 and the second protrusions 331a are semi-elliptical, and the distances between the first protrusions 324 are equal to ensure that the sizes of the grooves 324a formed between two adjacent first protrusions 324 are equal. The number of the second protrusions 331a is two, and two second notches 332a are spaced between the two second protrusions and symmetrically disposed on the outer surface of the stopper 332. The first protrusion 324 is oriented to correspond to the central axis of the first connection cap 321, the first protrusion 324 is spaced apart from the baffle 322, and the second protrusion 331a is oriented to correspond to the central axis of the second connection cap 331.

The receding groove 321a is located on one of the grooves 324a, and the orientation is consistent with the orientation of the first protrusion 324, the clamping groove 321b is circular, and is located between the first protrusion 324 and the baffle 322, and the clamping groove 321b is perpendicular to the receding groove 321 a. The boss 332b is located on the side wall of the stop block 332, and the distance from the boss 332b to the end face of the second connection cap 331 is consistent with the height of the abdicating groove 321a, so that the rotating piece 33 is tightly attached to the shielding piece 32 when being connected.

Referring to fig. 5, in an embodiment of the present invention, the separation structure 31 includes a separation cylinder 314, a filter screen 315 and a filter board 316, the filter screen 315 and the filter board 316 are installed in the separation cylinder 314, and the filter screen 315 is located below the filter board 316. The separation cylinder 314 comprises a cylinder body 314a and a connecting pipe 314b, the connecting pipe 314b is located at the bottom end of the cylinder body 314a, a second edge 314c is arranged on the connecting pipe, and the second edge 314c is connected with the first edge 323 through bolts and nuts, so that the adjusting structure 301 is fixed on the connecting pipe 314 b.

In this embodiment, the barrel 314a is integrally U-shaped, so that the separated oil is conveniently collected at the bottom, the water filtering plate 316 is an inverted hollow cone, a pump is arranged inside the water filtering plate, the separated gas is pumped out of the third exhaust port 312, the separated oil is condensed on the outer surface of the water filtering plate 316 to form water drops, and the water drops fall onto the filter screen 315 along the conical surface and then fall onto the bottom end of the barrel. The filtering holes are formed in the filtering net 315, so that impurities and dirt can be filtered. The regulating structure 301 is connected to a capillary tube, and the separated oil directly flows back to the compressor 10 through the capillary tube.

During the use, when needs adjust during the oil return rate of second oil separator 30, rotate rotation piece 33, change first breach 332a with the coincidence angle of first breach 322a is, dog 332 shelters from second breach 322a reduces the size of second breach 322a reduces the backward flow speed of oil, works as second breach 322a with when first breach 332a staggers completely, adjusting part 301 is in the closed condition, works as first breach 332a with when second breach 322a complete coincidence, the backward flow speed of oil reaches the biggest.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A multi-split oil return system is characterized by comprising a compressor, a first oil separator and a second oil separator, wherein the compressor is connected with the first oil separator, the first oil separator is connected with the second oil separator, and the first oil separator and the second oil separator are respectively connected with the compressor in a return mode;

second oil separator includes isolating construction and regulation structure, it is located to adjust the structure isolating construction below, it includes the shielding part and rotates the piece to adjust the structure, it is in to rotate the dress just a lateral wall in the shielding part with the shielding part is hugged closely to first breach has been seted up, the second breach has been seted up to the shielding part, controls rotate the piece so that first breach with the second breach staggers.

2. The multi-split oil return system as defined in claim 1, wherein: the shielding piece comprises a first connecting cap and a baffle, one end of the first connecting cap is connected with the separating structure, and the baffle is located in the first connecting cap and provided with the second notch.

3. The multi-split oil return system as defined in claim 2, wherein: the rotating piece comprises a stop block and a second connecting cap, the second connecting cap is sleeved on the stop block, the stop block is provided with the first notch, the first notch extends into the first connecting cap, and the other end of the first connecting cap abuts against the stop block.

4. The multi-split oil return system as defined in claim 3, wherein: the first connecting cap is provided with a first edge, the separating structure is provided with a second edge, and the first edge is connected with the second edge to connect the first connecting cap with the separating structure together.

5. The multi-split oil return system as defined in claim 4, wherein: the inner wall of the first connecting cap is provided with a yielding groove and a clamping groove communicated with the yielding groove.

6. The multi-split oil return system as claimed in claim 5, wherein: the stop block is provided with a boss, the boss slides into the abdicating groove and is clamped into the clamping groove, and the rotating piece is arranged in the shielding piece.

7. The multi-split oil return system as claimed in claim 3, wherein: a plurality of first bulges are arranged on the inner wall of the first connecting cap, and a groove is formed between every two adjacent first bulges.

8. The multi-split oil return system as defined in claim 7, wherein: the stop block is provided with a second protrusion which is clamped in the groove.

9. The multi-split oil return system as defined in claim 1, wherein: the separation structure comprises a separation barrel, a filter screen and a water filtering plate, wherein the filter screen and the water filtering plate are arranged in the separation barrel, and the filter screen is positioned below the water filtering plate.

10. The multi-split oil return system as claimed in claim 9, wherein: the separating cylinder comprises a cylinder body and a connecting pipe, wherein the connecting pipe is positioned at the bottom end of the cylinder body and is connected with the adjusting structure.