阅读说明：本技术 油分离装置、冷凝器及空调系统 (Oil separator, condenser and air conditioning system ) 是由 梁瀚荣 赵宇航 杨锦源 王小勇 于 2021-08-09 设计创作，主要内容包括：本发明公开了一种油分离装置、冷凝器及空调系统,油分离装置包括外壳、筒状的第一过滤层和设置在第一过滤层两端的第二过滤层,第一过滤层与外壳之间具有第一过滤腔,第一过滤层内部为第二过滤腔；第一过滤腔中设有第一挡板,第二过滤腔中设有第二挡板,第一挡板和第二挡板在外壳的气流方向上间隔设置。与现有技术比较,气体制冷剂依次从第一过滤腔和第二过滤腔流动的路径,对冷媒进行多次折流,每次冷媒都会从第一过滤层流过以对油滴进行过滤,经过层层过滤之后,纯气态冷媒便从出气口中流出,最大化利用壳体长度方向空间,实现了第一过滤网的最大化利用,提高了油分离效率。(The invention discloses an oil separation device, a condenser and an air conditioning system, wherein the oil separation device comprises a shell, a cylindrical first filter layer and second filter layers arranged at two ends of the first filter layer, a first filter chamber is arranged between the first filter layer and the shell, and a second filter chamber is arranged in the first filter layer; a first baffle is arranged in the first filtering cavity, a second baffle is arranged in the second filtering cavity, and the first baffle and the second baffle are arranged at intervals in the airflow direction of the shell. Compared with the prior art, the gas refrigerant carries out baffling many times to the refrigerant from the route that first filter chamber and second filter chamber flow in proper order, and every time refrigerant all can flow through in order to filter oil drops from first filter layer, and after filtering layer upon layer, pure gaseous refrigerant just flows out from the gas outlet, and the maximize utilizes casing length direction space, has realized the maximize utilization of first filter screen, has improved oil separation efficiency.)

1. An oil separating device comprising a housing (1) provided with an air inlet (11) and an air outlet (12), characterized by further comprising:

the hollow first filter layer is arranged in the shell and extends from the air inlet to the air outlet, a space is formed between the first filter layer and the shell to form a first filter cavity (21), and a second filter cavity (22) is formed in the first filter layer;

at least one first baffle (23) arranged in the first filter cavity and used for separating the first filter cavity along the direction from the air inlet to the air outlet;

and the at least one second baffle (24) is arranged in the second filter cavity and separates the second filter cavity along the direction from the air inlet to the air outlet, and the first baffle and the second baffle are arranged at intervals along the direction from the air inlet to the air outlet.

2. The oil separation device according to claim 1, characterized in that an intake chamber (17) communicating with the intake (11) is provided inside the housing (1), the intake chamber communicating with the first filter chamber or the second filter chamber; the shell (1) is internally provided with an air outlet cavity (19) communicated with the air outlet (12), and the air outlet cavity is communicated with the first filtering cavity or the second filtering cavity.

3. The oil separator according to claim 2, characterized in that the second filter chamber (22) communicates with the inlet chamber (17), the second filter chamber (22) communicates with the outlet chamber (19), and the communicating end of the second filter chamber (22) with the inlet chamber (17) and/or the outlet chamber (19) is provided with a second filter layer (5).

4. -oil separator according to claim 3, characterised in that the second filter layer (5) comprises a first orifice, a second orifice and a second filter screen arranged between the first and the second orifice.

5. The oil separation device according to claim 2, wherein the outlet chamber (19) includes a plurality of outlet holes communicating with the outside of the housing (1).

6. -oil separation device according to claim 5, characterised in that the outlet holes are arranged uniformly on the cavity wall of the outlet cavity (19).

7. -oil separation device according to claim 2, characterised in that the air inlet (11) is directly opposite the second filtering chamber (22) and is concentric with the second filtering chamber (22).

8. The oil separation device according to any one of claims 1 to 7, characterized in that the first filter layer (2) comprises at least one section of filter unit (25).

9. The oil separation device according to any one of claims 1 to 8, wherein the filter unit (25) comprises: the filter screen comprises a first cylinder body (251), a second cylinder body (252) concentrically sleeved outside the first cylinder body (251) and a first filter screen (253) clamped between the first cylinder body (251) and the second cylinder body (252), wherein air passing holes are formed in the first cylinder body (251) and the second cylinder body (252).

10. The oil separator according to claim 9, wherein the first filter layer (2) is formed by splicing at least two filter units (25) in the inlet-to-outlet direction.

11. The oil separator according to claim 10, wherein each two of the filter units (25) are connected to both sides of one of the second baffle plates (24), and the second baffle plates (24) are provided with through holes for communicating the two filter units (25).

12. The oil separator according to claim 9, wherein the first cylinder (251) and the second cylinder (252) are each composed of two abutting sections of cylinders, and the first baffle (23) is arranged between each section of cylinders.

13. The oil separator according to claim 1, characterized in that the bottom of the housing (1) is provided with at least one oil outlet pipe communicating with the second filtering chamber (22).

14. Condenser, characterized in that it comprises an oil separating device according to any one of claims 1 to 13, which is built into the top of the condenser (3).

15. Condenser according to claim 14, characterised in that at least one support plate (4) is provided inside the condenser (3) to support the oil separating means, and in that the heat exchange tubes inside the condenser (3) pass through the support plate (4).

16. An air conditioning system, characterized in that it comprises an oil separation device according to any one of claims 1 to 13 or a condenser according to any one of claims 14 to 15.

Technical Field

The invention relates to the technical field of air conditioners, in particular to an oil separation device, a condenser and an air conditioning system.

Background

In a commercial air conditioning unit, after a refrigerant passes through a compressor, the refrigerant oil and the refrigerant can be mixed together inevitably, if the refrigerant oil is not taken out in time and returned to the compressor, the lubrication deficiency of the compressor is caused, the abrasion of the compressor is increased, the power consumption is increased, and even the compressor is burned and even scrapped, so an oil separation device is generally arranged in front of an inlet of the condenser; however, in the internal oil separator in the prior art, oil filtering devices are generally arranged at the air inlet and the air outlet of the oil separator to filter gas, so that the axial space of the oil separator cannot be fully utilized, the filtering device only filters the gas at the air inlet and the air outlet, the space utilization rate of the oil separator is low, the filtering device cannot fully exert the filtering function, and the separation effect of the oil separator is poor.

Disclosure of Invention

The invention provides an oil separating device, a condenser and an air conditioning system, and solves the problems that the internal space utilization rate of an oil separator in the prior art is low, the filtering function of a filtering device is not fully utilized, and the oil separating effect is poor.

The technical scheme adopted by the invention is as follows: an oil separator, includes the shell, the shell is equipped with air inlet and gas outlet, still includes: the first hollow filter layer is arranged in the shell and extends from the air inlet to the air outlet, a space is formed between the first filter layer and the shell to form a first filter cavity, and a second filter cavity is formed in the first filter layer; at least one first baffle plate arranged in the first filter cavity and used for separating the first filter cavity along the direction from the air inlet to the air outlet; the at least one second baffle is arranged in the second filter cavity and divides the second filter cavity along the direction from the air inlet to the air outlet, and the first baffle and the second baffle are arranged at intervals along the direction from the air inlet to the air outlet.

Furthermore, an air inlet cavity communicated with the air inlet is formed in the shell, and the air inlet cavity is communicated with the first filtering cavity or the second filtering cavity; the shell is internally provided with an air outlet cavity communicated with the air outlet, and the air outlet cavity is communicated with the first filter cavity or the second filter cavity.

Furthermore, the second filter cavity is communicated with the air inlet cavity, the second filter cavity is communicated with the air outlet cavity, and a second filter layer is arranged at the communicated end of the second filter cavity and the air inlet cavity and/or the air outlet cavity.

Further, the second filter layer comprises a first pore plate, a second pore plate and a second filter screen arranged between the first pore plate and the second pore plate.

Further, the outlet cavity includes a plurality of outlet holes communicating with the outside of the housing.

Further, the air outlet holes are uniformly formed in the cavity wall of the air outlet cavity.

Further, the air inlet is opposite to the second filter cavity and is concentric with the second filter cavity.

Further, the first filter layer comprises at least one section of filter unit.

Further, the filter unit includes: the filter screen comprises a first barrel, a second barrel concentrically sleeved outside the first barrel and a first filter screen clamped between the first barrel and the second barrel, wherein air holes are formed in the first barrel and the second barrel.

Furthermore, the first filter layer is formed by splicing at least two sections of filter units along the direction from the air inlet to the air outlet.

Furthermore, every two filtering units are respectively connected to two sides of the second baffle, and through holes communicated with the two filtering units are formed in the second baffle.

Furthermore, the first cylinder and the second cylinder are formed by butt joint of two sections of cylinders, and the first baffle is arranged between each section of cylinder and the corresponding cylinder.

Furthermore, the bottom of the shell is provided with at least one oil outlet pipe communicated with the second filtering cavity.

A condenser comprises the oil separation device, and the oil separation device is arranged in the top of the condenser.

Furthermore, at least one supporting plate for supporting the oil separating device is arranged in the condenser, and the heat exchange tube in the condenser penetrates through the supporting plate.

An air conditioning system comprising the oil separation device or the condenser.

Compared with the prior art, first baffle in this application sets up along the axial direction interval of shell, thereby separate into two at least independent loculus with first filter chamber on its axial direction, and the second baffle sets up along its axial direction interval equally, thereby separate into two at least independent loculus with the second filter chamber on its axial direction, thereby form the gaseous refrigerant and follow the route that first filter chamber and second filter chamber flow in proper order, carry out baffling many times to the refrigerant, the refrigerant all can flow through in order to filter the oil droplet from first filter layer at every turn, after filtering layer upon layer, pure gaseous refrigerant just flows out from the gas outlet, the maximize utilizes casing length direction space, the maximize utilization of first filter screen has been realized, oil separating efficiency has been improved.

Simultaneously, this application still has simple structure, occupation space is less, installation and change convenient advantage.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view of the installation structure of an oil separator according to the present invention;

FIG. 2 is a schematic diagram of an installation structure of an oil separating device in a condenser according to the present invention;

FIG. 3 is a schematic cross-sectional view of an oil separator according to the present invention;

FIG. 4 is a schematic view of a cut-out portion of an oil separator according to the present invention;

FIG. 5 is a schematic view of the structure of the filter unit of the present invention.

Wherein the main reference numerals of the present application are as follows:

1. a housing; 11. an air inlet; 12. an air outlet; 13. a cylinder; 14. a first cover; 15. an air inlet pipe; 16. a partition plate; 17. an air inlet cavity; 18. a second cover; 19. an air outlet cavity; 2. a first filter layer; 21. a first filter chamber; 22. a second filter chamber; 23. a first baffle plate; 24. a second baffle; 25. a filtration unit; 251. a first cylinder; 252. a second cylinder; 253. a first filter screen; 26. an oil outlet pipe; 3. a condenser; 4. a support plate; 5. a second filter layer; 51. a second filter.

Detailed Description

The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.

As shown in fig. 1 to 3, the oil separation device in the present application mainly comprises two parts, namely a housing 1 and an inner cylinder, wherein the housing 1 is in a cylindrical shape with a circular cross section, two ends of the housing 1 are closed, one end of the housing 1 is an air inlet 11, the other end is an air outlet 12, and air flows into the oil separation device from the air inlet 11 and flows out from the air outlet 12; the cross section of the inner cylinder is also circular, the inner diameter of the inner cylinder is smaller than that of the shell 1 and is positioned in the middle of the shell 1, a certain distance is kept between the inner cylinder and the shell, the side wall of the inner cylinder is used as a first filter layer 2 capable of filtering gaseous refrigerants, the side wall of the inner cylinder comprises a first filter screen 253, the side wall can also be a common thin wall, and the thin wall has a filtering function by forming an opening with a specific size on the thin wall.

As shown in fig. 4, the first filter layer 2 is communicated in the direction from the air inlet 11 to the air outlet 12 of the housing 1, and the spacing space between the first filter layer 2 and the housing 1 forms a first filter chamber 21, and the inner space of the first filter layer 2 is a second filter chamber 22; at least one first baffle plate 23 is arranged in the first filter cavity 21, the first baffle plates 23 are arranged at intervals along the axial direction of the shell 1, thereby dividing the first filter chamber 21 into at least two separate small chambers in the axial direction thereof, at least one second baffle 24 is also arranged in the second filter chamber 22, the second baffles 24 are also arranged at intervals along the axial direction thereof, thereby dividing the second filter chamber 22 into at least two independent small chambers in the axial direction thereof, and the first baffle 23 and the second baffle 24 are staggered at intervals in the axial direction of the housing 1, thereby forming a path through which the gaseous refrigerant flows from the first filter chamber 21 and the second filter chamber 22 in order, the refrigerant is baffled for many times, the refrigerant flows through the first filter layer 2 every time to filter oil drops, and after the refrigerant is filtered layer by layer, the pure gaseous refrigerant flows out of the air outlet 12.

Three oil outlet pipes communicated with the second filtering cavities 22 are arranged at the bottom of the shell 1, oil drops filtered on the first filtering layer 2 are gathered and dropped into the second filtering cavities 22, and then flow back to the compressor from the oil outlet pipes.

Further, in this embodiment, an air inlet cavity 17 is disposed at the air inlet 11 inside the housing 1, an air outlet cavity 19 is disposed at the air outlet 12, the oil separator delivers the oil-gas mixture to the air inlet cavity 17 through an external pipeline, the second filter cavity 22 inside the first filter layer 2 is communicated with the air inlet cavity 17, the second filter cavity 22 is also communicated with the air outlet cavity 19, and the second filter layers 5 are disposed at the communication positions of the second filter cavity 22 and the air inlet cavity 17 and/or the air outlet cavity 19, so as to further improve the oil drop filtering effect.

Preferably, the gas is deflected for a plurality of times in the oil separating device through the first filtering layer and the second filtering layer, and the total thickness of the filtering layers (including the first filtering layer and the second filtering layer) which the gas passes through in the oil separating device in total should be controlled between 20mm and 200mm, so that the filtering effect of the fluid in the oil separating device can be fully ensured, the excessive pressure drop of the fluid due to the large total thickness of the filtering layers can be avoided, and the proper flow speed of the gas flow in the oil separating device can be ensured.

Of course, in other embodiments, the air outlet cavity 19 may be only communicated with the second filter cavity 22, or only communicated with the first filter cavity 21, and when the air outlet cavity 19 is communicated with the first filter cavity 21, the second filter layer 5 is also arranged at the connection part of the air outlet cavity 19 and the first filter cavity 21; similarly, the air inlet chamber 17 may be only communicated with the second filter chamber 22, or only communicated with the first filter chamber 21, and is not particularly limited, and when the air inlet chamber 17 is communicated with the first filter chamber 21, the second filter layer 5 may be disposed at the joint of the air inlet chamber 17 and the first filter chamber 21.

In one embodiment, the oil separator is disposed in the condenser 3, and the wall of the gas outlet cavity 19 is provided with a plurality of gas outlet holes uniformly arranged and communicated with the outside of the shell 1, so that the gas can be effectively dispersed to improve the heat exchange efficiency, and the gas does not directly impact the tube plate or the shell of the condenser 3, thereby reducing the occurrence of abrasion or abnormal noise.

Preferably, the even setting of venthole can guarantee evenly giving vent to anger, and sets up the total area of the venthole on the air outlet cavity 19 as the twice of air inlet 11, and the aperture control of every venthole is between 16 to 20mm for the total area of giving vent to anger is greater than the area of admitting air, guarantees like this that the velocity of flow and the flow of gaseous after the filtration of filter layer can also maintain normal scope.

Further, the air inlet pipe plays a role in guiding air to enter the built-in oil separator, the position of the air inlet pipe can be changed according to the air inlet position of the compressor, and the air inlet 11 is arranged right opposite to the second filter cavity 22 in the embodiment, namely the air inlet 11 is arranged on the circle center of the end of the shell 1, so that air supply is smoother.

As shown in fig. 3 and 5, in particular, in practical production, the first filter layer 2 of the present application is formed by splicing at least one section of the filter unit 25 along the airflow direction (axial direction); each section of the filtering unit 25 is composed of a first cylinder 251, a second cylinder 252 and a first filtering net 253, and the specific composition form is as follows: the first cylinder 251 is arranged at the innermost layer, a plurality of air passing holes are formed in the first cylinder 251, the first filter screens 253 which are stacked layer by layer are laid on the outer side of the first cylinder 251, the thickness of each first filter screen 253 is 5mm-30mm to ensure pressure drop, the flow rate and the flow speed of fluid are further ensured to be in proper size, the flow rate and the flow speed of fluid are not influenced by the overlarge thickness of the first filter screens, compared with a winding-shaped filter screen, the installation efficiency can be greatly saved, after the first filter screens 253 are laid, the second cylinder 252 is sleeved on the outer side of the first cylinder 251, so that the first cylinder 251 and the second cylinder 252 can clamp and fix the first filter screens 253, meanwhile, the air passing holes are also formed in the second cylinder 252, the diameters of the air passing holes formed in the first cylinder 251 and the second cylinder 252 are 8mm-20mm, preferably 16mm, and the hole spacing is controlled to be between 10mm and 22mm, the thickness is preferably 18mm, because the function of the air passing holes is only that the air flows through, and does not need to have filtering performance, so that the arrangement can ensure that the air can normally pass through, meanwhile, the size and the distance of the openings are not too large to influence the structural strength of the cylinder, and the first cylinder 251 and the second cylinder 252 can play a sufficient role in supporting and fixing, and the three together form the first filtering layer 2. Of course, in other embodiments, the first filter layer 2 may also be provided in a form of opening only on the cylinder, that is, the cylinder is directly provided with a plurality of evenly arranged pores, so as to filter oil drops.

Preferably, the cross-sectional area of the first chamber formed between the first filter layer 2 and the housing 1 is twice the area of the gas inlet 11, so that the flow area of the gas in the first chamber is sufficient, and the pressure drop of the fluid after flowing through the first filter layer is not greatly reduced, thereby ensuring that the pressure drop of the device is stable, and keeping the flow rate and the flow velocity of the gas normal.

Furthermore, due to the fact that the convenience degree of transportation and installation is considered, the first cylinder 251 and the second cylinder 252 are both arranged in a multi-section splicing mode, namely the first cylinder and the second cylinder are welded and fixed together through the end faces of the multi-section small cylinders, and therefore production and assembly efficiency of the oil separation device are greatly facilitated.

In this embodiment, the first cylinder 251 and the second cylinder 252 are both formed by welding and fixing two small cylinders, and since the second baffle 24 is further required to be arranged in the second filtering cavity 22 in this embodiment, the second baffle 24 is directly welded between the two small cylinders in this embodiment, so that the second baffle 24 can play a role of fixed support and can play a role of baffling, and the distance between the air passing hole on the small cylinder and the second baffle 24 should be greater than 5mm, so as to avoid that the welding distance is insufficient, the welding and melting are easy, and the welding quality is difficult to guarantee.

Furthermore, the two filter units 25 can also be welded and fixed together by the first baffle 23, the first baffle 23 is a circular plate, the diameter of the filter unit is consistent with the inner diameter of the shell 1, two filter units 25 are respectively welded on two sides of the first baffle 23 for fixing, then the two filter units 25 which are welded are placed in the shell 1 and welded and fixed, the first baffle plate 23 is welded and fixed on the inner side of the filter units 25, and the first baffle 23 can play a role of supporting the filter units 25, and at the same time, the middle part of the first baffle 23 is provided with a through hole to connect the two filter units 25, and the edge portion of the first baffle 23 extending outside the filter unit 25 is a solid body, which is opposite to the portion where the through-holes are provided, i.e. without any through-hole structure, the solid body is just a solid plate to perform the function of deflecting the fluid in the first chamber.

In addition, in the present application, the second filter layers 5 are respectively disposed at two end positions of the first filter layer 2, the second filter layers 5 cover the end positions of the first filter layer 2, in this embodiment, the second filter layers 5 are composed of three parts, which are respectively a first pore plate, a second pore plate and a second filter net 51 disposed between the first pore plate and the second pore plate, the first pore plate and the second pore plate play a role of supporting and fixing the second filter net 51, and the second filter layers 5 can be directly welded and fixed with the first cylinder 251 and the second cylinder 252 of the first filter layer 2 through each pore plate.

Further, the housing 1 mainly includes a cylinder 13 and a cover, the cylinder 13 may be formed by axially welding and fixing a plurality of small cylinders 13, and the two ends of the finally installed cylinder are welded and sealed, when assembling, a welded filtering unit 25 (a first filtering layer 2) is inserted into the cylinder 13, then the first cover 14 is welded and fixed on the closed end of the cylinder 13, the center of the end surface of the first cover 14 is provided with an air inlet 11, the air inlet 11 is externally connected with an air inlet pipe 15, the outer side of the filtering unit 25 is provided with a circle of partition plate 16, the outer diameter of the partition plate 16 is consistent with the inner diameter of the cylinder 13, after assembling, the spaced area between the partition plate 16 and the first cover 14 forms an air inlet cavity 17, then the second cover 18 is welded and fixed on the other end of the cylinder 13, and the outer side of the filtering unit 25 opposite to one end of the second cover 18 is also provided with a circle of partition plate 16, the partition 16 and the second cover 18 form an air outlet cavity 19, and a plurality of air outlet holes are uniformly formed on the end surface and the circumferential surface of the second cover 18 to uniformly discharge air.

The application still further provides a condenser 3, the condenser 3 is a horizontal condenser 3, the condenser comprises the oil separating device, the oil separating device is arranged in the condenser 3, the condenser is specifically arranged at the top position of the condenser 3, the shell of the condenser 3 is cylindrical, when the condenser is installed, the shell 1 of the oil separating device is supported at the upper end of the condenser 3, the lower part of the oil separating device is supported and fixed by three supporting plates 4, the supporting plates 4 are provided with circular through holes for the heat exchange tubes to pass through, the upper parts of the supporting plates 4 are provided with circular grooves, the grooves are matched with the outline of the shell 1 of the oil separating device, when the condenser is installed, the supporting plates 4 are directly arranged in a line, the oil separating device is placed in the grooves and then welded and fixed, and therefore the difficulty in production and installation can be reduced.

Preferably, the length of the oil separation device is c1, the length of the condenser 3 is c2, and the relationship between the lengths of the oil separation device and the condenser 3 is 0.2c 2-c 1-0.7 c 2; the diameter of the oil separation device is kept between 1/4 and 2/5 between the condensers 3, so that the layout of the arranged condensers 3 is reasonable, the installation of the bent pipe can be met, the oil separation device can be ensured to be large enough in size, the oil separation device can ensure that the performance of each part in the condensers is not interfered while the separation effect is ensured, and the comprehensive performance of heat exchange and filtration of the condensers is optimal.

An air conditioning system comprises the oil separation device, and the oil separation device can be internally arranged in a condenser or externally arranged in the condenser.

The above specific embodiments are only intended to illustrate the inventive concept and many modifications and variations may be made by those skilled in the art within the spirit of the invention, which are included within the scope of the invention.