CN216320870U

CN216320870U - Oil separator with oil filtering function

Info

Publication number: CN216320870U
Application number: CN202122590971.4U
Authority: CN
Inventors: 卓明胜; 黄洪乐; 王朴忠; 刘洋; 程琦
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-19
Anticipated expiration: 2031-10-26

Abstract

The utility model provides an oil separator with an oil filtering function, which comprises a shell, wherein a separation cavity and an oil storage cavity which are communicated are formed in the shell, the separation cavity is used for oil-gas separation, the oil storage cavity is used for storing oil from the separation cavity, an oil filtering device is arranged in the oil storage cavity, an air inlet, an air outlet and an oil return opening are formed in the shell, the air inlet and the air outlet are communicated with the separation cavity, and the oil return opening is communicated with the oil storage cavity through the oil filtering device. Compared with the prior art, the oil separator provided by the utility model has the advantages that the oil storage is carried out in the bottom space, and the oil filter is arranged, so that the oil separator has the functions of oil storage and oil filtration, the number of parts can be effectively reduced, the floor area of unit equipment is reduced, and the production cost is reduced. Through integrating oil storage tank oil return import and export, looking liquid mirror, further reduce equipment area occupied, reduce accessories manufacturing cost, simplify equipment production processes and the degree of difficulty, come the technological form and the market competitiveness of promotion equipment.

Description

Oil separator with oil filtering function

Technical Field

The utility model relates to the technical field of oil-gas separation equipment, in particular to an oil separator with an oil filtering function.

Background

The large screw type heating and ventilation equipment needs refrigeration oil for an internal fluorine path system due to the meshing compression form of a micro screw rotor of a compressor, so that when the screw is meshed, the rotor is cooled, lubricated and sealed, and meanwhile, the linear compression also determines that the large screw type heating and ventilation equipment needs clean refrigeration oil which is not large in particle impurities. Therefore, in order to obtain reliable and clean feeding of the refrigeration oil in the whole refrigerant circulating system, the screw type system is provided with an oil separator and an oil storage tank, the oil separator plays a role in separating the refrigeration oil from the refrigerant, and the oil storage tank plays a role in oil filtration.

The conventional oil separator, the oil storage tank, the connecting pipeline between the conventional oil separator and the oil storage tank and the bracket fittings occupy large floor area, and have numerous welding points, so that the conventional oil separator, the conventional oil storage tank, the connecting pipeline between the conventional oil separator and the oil storage tank and the bracket fittings are not good schemes in terms of installation operation, welding point failure probability and part production cost.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, such as large floor space occupied by conventional oil separators, oil storage tanks, and connecting lines and fittings therebetween, the present invention provides an oil separator with oil filtering function, which can effectively reduce the number of parts, floor space occupied by equipment, and production cost by integrating the oil filtering function into the oil separator.

The utility model provides an oil separator with an oil filtering function, which comprises a shell, wherein a separation cavity and an oil storage cavity which are communicated are formed in the shell, the separation cavity is used for oil-gas separation, the oil storage cavity is used for storing oil from the separation cavity, an oil filtering device is arranged in the oil storage cavity, an air inlet, an air outlet and an oil return opening are formed in the shell, the air inlet and the air outlet are communicated with the separation cavity, and the oil return opening is communicated with the oil storage cavity through the oil filtering device.

The oil separator has the advantages that the oil storage is carried out in the bottom space of the oil separator, the oil filter is arranged, the oil separator has the oil storage and oil filtering functions, the number of parts can be effectively reduced, the floor area of unit equipment is reduced, and the production cost is reduced.

Preferably, the shell comprises an outer cylinder, and an upper cover plate and a lower cover plate which are arranged at two ends of the outer cylinder; the gas outlet is arranged on the cover plate, the outer cylinder body is cylindrical, the gas inlet is arranged in the circumferential tangential direction of the upper portion of the outer cylinder body, and the oil return port is arranged on the lower cover plate. The tangential air inlet is formed through the air inlet, and the oil-gas separation is facilitated.

Preferably, an inner cylinder body is further arranged in the shell, the top of the inner cylinder body is fixed on the upper cover plate, the inner cylinder body, the outer cylinder body and the upper cover plate are enclosed to form a first separation cavity with a lower opening, and the first separation cavity is communicated with the air inlet. The oil-gas separation efficiency can be effectively improved by arranging the inner cylinder.

Preferably, a filter screen device is further arranged in the inner cylinder body, the top of the filter screen device is fixed on the upper cover plate, and the filter screen device, the inner cylinder body and the upper cover plate enclose to form a second separation cavity with a lower opening; the second separation cavity is communicated with the air outlet through a filter screen device. Can effectively improve oil-gas separation efficiency through setting up filter unit.

Preferably, the filter screen device is a barrel-shaped structure with a closed bottom and an open top, and the open top of the filter screen device is communicated with the air outlet; a plurality of through holes are formed in the side wall of the filter screen device. Because the bottom of the filter screen device is sealed, the airflow can only pass through the through holes on the side wall of the filter screen device, and the airflow impacts the wall surface in the process to further realize oil-gas separation, thereby improving the separation efficiency.

Preferably, the inner cylinder body is connected with the inner wall of the outer cylinder body through a reinforcing plate; the filter screen device is connected with the inner cylinder body through a reinforcing plate. The reinforcing plate can avoid the vibration of parts of the welding cantilever caused by high-pressure high-temperature gas to generate fracture and noise.

Preferably, an oil baffle plate is further arranged in the shell and located between the oil filtering device and the inner cylinder. Through setting up the oil baffle, can flow to the casing when bottom after satisfying the oil separation, prevent that the oil that the eminence splashes down from forming the wave flower, also avoid gaseous state refrigerant to strike and cause bottom oil level surge down.

Preferably, the oil filtering device comprises a cylindrical side wall and two end faces arranged at two ends of the cylindrical side wall, the cylindrical side face is made of a filtering screen, one end face is provided with an oil outlet, and the oil outlet is communicated with the oil return port.

Preferably, a safety valve and/or a lifting lug are/is further arranged on the shell. The lifting lug can be used as a lifting position point of the integral finished product of the oil separator, so that the oil separator is convenient to mount. The safety valve is used as a mechanical safety protection pressure relief point of the integral finished product of the oil separator.

Preferably, the shell is further provided with a liquid viewing mirror, and the liquid viewing mirror is located above the oil filtering device. The oil level can be conveniently observed by arranging the liquid viewing lens.

Preferably, the oil separator further comprises a mounting plate arranged at the bottom of the shell for supporting the oil separator.

Compared with the prior art, the oil separator with the oil filtering function provided by the utility model has the advantages that the oil storage is carried out in the bottom space of the oil separator, the oil filter is arranged, the oil separator has the oil storage and oil filtering functions, the number of parts can be effectively reduced, the floor area of unit equipment is reduced, and the production cost is reduced. Through integrating oil storage tank oil return import and export, looking liquid mirror, simplifying oil storage tank shell and using etc to further reduce equipment area, reduce accessories manufacturing cost, simplify equipment production processes and the degree of difficulty, promote the technological form and the market competitiveness of equipment.

The features mentioned above can be combined in various suitable ways or replaced by equivalent features as long as the object of the utility model is achieved.

Drawings

The utility model will be described in more detail hereinafter on the basis of non-limiting examples only and with reference to the accompanying drawings. Wherein:

fig. 1 is a schematic structural diagram of an oil separator with an oil filtering function according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an oil separator with an oil filtering function according to another perspective of the present disclosure;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 1;

fig. 4 is a cross-sectional view at B-B in fig. 2.

Description of reference numerals:

1. an upper cover plate; 2. an outer cylinder; 3. a lower cover plate; 4. an air inlet; 5. an air outlet; 6. an oil return port; 7. an oil filtration device; 8. an inner cylinder; 9. a strainer device; 10. a reinforcing plate; 11. an oil baffle plate; 12. a safety valve; 13. lifting lugs; 14. a liquid viewing mirror; 15. a nameplate; 16. and (7) mounting the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and more complete, the following technical solutions of the present invention will be described in detail, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the specific embodiments of the present invention belong to the protection scope of the present invention.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The oil separator with the oil filtering function (hereinafter referred to as oil separator) comprises a shell, a separation cavity is formed in the upper portion of the interior of the shell, an oil storage cavity is formed in the lower portion of the interior of the shell, the separation cavity is communicated with the oil storage cavity, the separation cavity is a place for oil-gas separation, oil separated out in the separation cavity is gathered to the oil storage cavity below the separation cavity under the action of gravity, an oil filtering device 7 is arranged in the oil storage cavity, and the oil filtering device 7 is used for filtering large-particle impurities in the oil. An air inlet 4 and an air outlet 5 are arranged on the upper part of the shell, and the air inlet 4 and the air outlet 5 are communicated with the separation cavity. An oil return port 6 is formed in the lower portion of the shell, the oil return port 6 is communicated with the oil storage cavity through an oil filtering device 7, and after large-particle impurities are removed through filtering of the oil filtering device 7, oil in the oil storage cavity is discharged from the oil separator through the oil return port 6 and then enters the refrigerant circulating system. The oil filter device 7 can be used both as an oil filter and as a return pipe.

As shown in fig. 1 to 4, the housing is formed by enclosing an outer cylinder 2, an upper cover plate 1 and a lower cover plate 3. The oil filtering device 7 comprises a cylindrical side wall and two end faces arranged at two ends of the cylindrical side wall, the cylindrical side face is made of a filtering screen, one end face is provided with an oil outlet, and the oil outlet is communicated with the oil return port 6. In some embodiments, the oil filter device is a removable seal structure.

The upper cover plate 1 is used as an upper end socket of the oil separator, the upper cover plate 1 is provided with the air outlet 5, the air outlet 5 is preferably formed by combining a steel pipeline and a clamping circle, can adapt to butt welding of steel pipes or flange clamping connection, and realizes that the mixed fluid of gaseous refrigerant and refrigeration oil conveyed by the compressor at high temperature and high pressure is input into the oil separator.

An air inlet 4 is arranged on the outer cylinder body 2. Preferably, the outer cylinder 2 is cylindrical, and the air inlet 4 is arranged in the circumferential tangential direction of the upper part of the outer cylinder 2, so that tangential air inlet is formed, and oil-gas separation is facilitated. Preferably, the air inlet 4 is formed by combining a steel pipeline and a clamping circle, can adapt to butt welding of steel pipes or flange clamping connection, and realizes output of gaseous refrigerants after separation of mixed fluid of the refrigerants and the refrigeration oil.

The lower cover plate 3 is used as a lower end socket of the oil separator and is a foundation for supporting and welding the whole oil separator. An oil return opening 6 is arranged on the lower cover plate 3. Preferably, the lower cover plate 3 is a circular end socket formed by an oval cross section, the inner space of the lower cover plate is an oil storage cavity, the cross section distance of the lower cover plate is larger than that of a conventional flat plate end socket, so that the thickness of materials for thinning can be effectively reduced, the structure enables the refrigerant oil gathered at the bottom to easily submerge the oil filtering device 7, the filling of the refrigerant oil of the system is reduced, and the filtering efficiency is improved.

In some embodiments, a safety valve 12 and a lifting lug 13 can be further arranged on the shell. The lifting lugs 13 can be used as lifting position points of the integral finished product of the oil separator, so that the oil separator is convenient to mount. The safety valve 12 is used as a mechanical safety protection pressure relief point of the integral finished product of the oil separator. A safety valve 12 and a lifting lug 13 are preferably provided on the upper deck 1.

In some embodiments, a sight glass 14 and/or a nameplate 15 may also be provided on the housing. The liquid sight glass 14 is positioned above the high point of the oil filtering device 7, so that the oil level can be observed conveniently. The name plate 15 can be used to record information from the oil separator. The sight glass 14 and the name plate 15 are preferably arranged on the outer cylinder 2.

In some embodiments, a mounting plate 16 is provided at the bottom outside the housing, and the mounting plate 16 is used to support the oil separator, and in combination with the lower cover plate 3, supports the entire oil separator, which is the support welding base for the oil separator.

In order to improve the separation efficiency of the oil separator, it is preferable that an inner cylinder 8 is provided in the housing, the top and bottom of the inner cylinder 8 have openings, the top of the inner cylinder 8 is fixed to the upper cover plate 1, and the inner cylinder 8 is coaxially provided with the outer cylinder 2. The outer cylinder body 2 and the upper cover plate 1 are enclosed to form a first separation cavity with a lower opening, and the first separation cavity is communicated with the air inlet 4. The air current that gaseous refrigerant and refrigeration oil formed gets into first separation chamber from air inlet 4 and strikes the cavity wall, thereby oil absorption separates on the wall, improves separation efficiency.

More preferably, a filter screen device 9 is further arranged in the inner cylinder 8, the top of the filter screen device 9 is fixed on the upper cover plate 1, the filter screen device 9, the inner cylinder 8 and the upper cover plate 1 enclose to form a second separation cavity with a lower opening, and the second separation cavity is communicated with the air outlet 5 through the filter screen device 9. The airflow in the first separation cavity moves upwards after passing through the inner cylinder 8 and enters the second separation cavity on the inner side of the inner cylinder 8, the airflow impacts the wall surface of the second separation cavity, oil is adsorbed on the wall surface to be separated, and the separation efficiency is improved through secondary separation; the air flow after the secondary separation passes through the filter screen device 9 and then is discharged out of the oil separator through the air outlet 5.

The filter screen device 9 is preferably a barrel-shaped structure with a closed bottom and an open top, and the open top of the filter screen device 9 is communicated with the air outlet 5; a plurality of through holes are arranged on the side wall of the filter screen device 9. Because the bottom of the filter screen device 9 is sealed, the airflow can only pass through the through holes on the side wall of the filter screen device 9, and the airflow impacts the wall surface in the process to further realize oil-gas separation, thereby improving the separation efficiency.

In some embodiments, the inner cylinder 8 is connected with the inner wall of the outer cylinder 2 through a reinforcing plate 10; the filter screen device 9 is connected with the inner cylinder body 8 through a reinforcing plate 10. The reinforcing plate 10 can prevent the parts of the welding cantilever from being cracked and generating noise due to vibration of high-pressure high-temperature gas.

In some embodiments, an oil baffle 11 is further disposed in the housing, and the oil baffle 11 is located between the oil filter 7 and the inner cylinder 8. Through setting up oil baffle 11, can satisfy the oil separation after flow to the casing to the bottom in, prevent that the oil that the eminence splash from forming the wave flower, also avoid gaseous state refrigerant to strike and cause bottom oil level surge down. The oil deflector 11 is preferably a plate-like structure having a plurality of through holes.

The principle of the oil-gas separator is as follows:

the gas refrigerant of the compressor entrains the high-temperature high-pressure mixed fluid of the refrigeration oil to enter an air inlet 4 of the oil separator; because upper cover plate 1, interior barrel 8, outer barrel 2 form a vertical downward open-ended trilateral sealed first separation chamber, and the mixed fluid passes through tangential air inlet 4, so the mixed fluid forms spiral decurrent flow direction, and the spiral downward process of mixed fluid can strike the cavity wall in first separation chamber to the large granule oil drops receive gravity to lead to gathering to oil baffle 11. After the airflow passes through the inner cylinder body 8, the airflow moves upwards to enter the second separation cavity, and because the bottom of the filter screen device 9 is sealed, the airflow can only pass through the side wall surface of the filter screen device 9, and oil separation is formed. After the gaseous refrigerant passes through the filter screen device 9, the gaseous refrigerant is basically not mixed with the refrigeration oil and is discharged from the air outlet 5. The oil collected by the screen device 9 flows down the wall surface, resulting in collection towards the oil deflector 11. On apron 3 inner wall down is gathered to the oil of oil baffle 11, submerge oily filter equipment 7, the outer wall of oily filter equipment 7 is filter screen, oil gets into oil return opening 6 after filtering through filter screen, 6 oil separator of rethread oil return opening, it is lubricated and sealed to cool down for the compressor once more, the circulation of oil has been formed like this, and impurity then persists in the oil storage intracavity of apron 3 bottoms down, avoided impurity entering compressor rotor meshing department like this, avoid damaging the compressor.

Finally, it should be noted that: the above embodiments and examples are only used to illustrate the technical solution of the present invention, but not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments and examples, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments or examples may still be modified, or some of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments or examples of the present invention.

Claims

1. The utility model provides an oil separator with oily filtering capability, its characterized in that includes the casing, is formed with the disengagement chamber and the oil storage chamber that are linked together in the casing, the disengagement chamber is used for carrying out oil-gas separation, the oil storage chamber is used for storing the oil that comes from the disengagement chamber, be provided with oily filter equipment in the oil storage intracavity, be provided with air inlet, gas outlet and oil return opening on the casing, the air inlet with the gas outlet with the disengagement chamber is linked together, the oil return opening passes through oily filter equipment with the oil storage chamber is linked together.

2. The oil separator with an oil filtering function according to claim 1, wherein said housing includes an outer cylinder and upper and lower cover plates provided at both ends of said outer cylinder; the gas outlet is arranged on the cover plate, the outer cylinder body is cylindrical, the gas inlet is arranged in the circumferential tangential direction of the upper portion of the outer cylinder body, and the oil return port is arranged on the lower cover plate.

3. The oil separator as claimed in claim 2, wherein an inner cylinder is further disposed in the housing, the top of the inner cylinder is fixed to the upper cover plate, the inner cylinder, the outer cylinder and the upper cover plate enclose a first separation chamber with a lower opening, and the first separation chamber is communicated with the air inlet.

4. The oil separator with the oil filtering function according to claim 3, wherein a strainer device is further arranged in the inner cylinder, the top of the strainer device is fixed on the upper cover plate, and the strainer device, the inner cylinder and the upper cover plate enclose a second separation cavity with a lower opening; the second separation cavity is communicated with the air outlet through a filter screen device.

5. The oil separator with oil filtering function of claim 4, wherein said screen means is a closed-bottom and open-top barrel-like structure, the top opening of said screen means communicating with said air outlet; a plurality of through holes are formed in the side wall of the filter screen device.

6. The oil separator with an oil filtering function according to claim 4, wherein the inner cylinder and the inner wall of the outer cylinder are connected by a reinforcing plate; the filter screen device is connected with the inner cylinder body through a reinforcing plate.

7. The oil separator with an oil filtering function according to claim 3 or 4, wherein an oil baffle plate is further provided in said housing, said oil baffle plate being located between said oil filtering device and said inner cylinder.

8. The oil separator having an oil filtering function according to any one of claims 1 to 5, wherein said oil filtering means comprises a cylindrical side wall and two end faces provided at both ends of the cylindrical side wall, the cylindrical side face being made of a filter mesh, one of the end faces being provided with an oil outlet, said oil outlet being communicated with said oil return port.

9. The oil separator with oil filtering function according to any one of claims 1 to 5, wherein a relief valve and/or a lug is further provided on said housing.

10. The oil separator having an oil filtering function according to any one of claims 1 to 5, wherein a sight glass is further provided on said housing, said sight glass being located above said oil filtering means.

11. The oil separator with oil filtering function according to any one of claims 1 to 5, further comprising a mounting plate provided at a bottom of said housing for supporting said oil separator.