CN205227950U - An oil separator and a condenser including the oil separator - Google Patents

Abstract

The utility model discloses an oil separator and a condenser comprising the oil separator. The oil separator comprises a shell with openings at both ends, a left sealing plate and a right sealing plate located on both sides of the shell, one side of the shell is provided with a convex There is a refrigerant inlet on the protruding part, and a baffle is arranged inside the shell and directly below the refrigerant inlet. One side of the baffle is connected to the left sealing plate, and the other side of the baffle is connected to the right baffle. Connection, there is a flow equalizer in the shell, which is connected with the right sealing plate, and a filter screen is arranged above the flow equalizer. The oil separator related to the utility model has the advantages of simple structure, small volume and simple connecting pipeline, and the oil separation efficiency is significantly improved.

Description

An oil separator and a condenser including the oil separator

technical field

The utility model relates to an oil separator and a condenser, in particular to an oil separator built in the condenser and a condenser including the oil separator.

Background technique

The refrigerant sprayed out by the compressor generally contains a large amount of lubricating oil. If the oily refrigerant enters the condenser, since the lubricating oil does not evaporate, an oil film will be formed on the wall of the heat exchanger, which greatly reduces the Heat transfer effect and cooling efficiency. At present, the main methods to solve this problem are as follows: the first is to build an oil separator in the compressor, and the oil is separated before it is discharged from the compressor, but the oil separation efficiency of this method is not very high, and The structure is complex and installation is difficult; the second method uses the oil separator as a separate component and places it in front of the condenser, so that the lubricating oil is separated before entering the refrigeration system, but this structure has high production costs and takes up a lot of space , Complicated piping and other shortcomings. In order to overcome the shortcomings of the above oil separation structures, an oil separator built into the condenser is proposed in the prior art. At present, Chinese patents have disclosed several types of built-in oil separators, and their structures are basically similar and symmetrical, so that the condenser cannot match the entire unit. However, the oil separation efficiency of the built-in oil separator of these structures is not very high, resulting in the adhesion of lubricating oil to the tube wall of the condensing tube of the condenser, and the heat transfer rate of the condenser cannot be improved.

Utility model content

In the embodiment of the utility model, an oil separator and a condenser including the oil separator are provided to solve the problem of low oil separation efficiency in the prior art, lubricating oil attached to the tube wall of the condensing tube of the condenser, and relatively low heat transfer rate of the condenser. low problem.

In order to achieve the above purpose, the utility model provides an oil separator, which is built in the condenser, and includes a shell with two ends open, a left sealing plate and a right sealing plate located on both sides of the shell, one side of the shell is provided with a protrusion There is a refrigerant inlet on the protruding part, which is characterized in that a baffle is provided inside the shell and directly below the refrigerant inlet, one side of the baffle is connected to the left sealing plate, and the other side of the baffle is provided with The right baffle extending towards the side where the refrigerant inlet is located.

Preferably, a flow equalizer is provided in the casing, which is connected to the right sealing plate, and a filter screen is arranged above the flow equalizer.

Preferably, the baffle is arranged horizontally and at a certain angle to the right baffle, and a hole is provided on the side close to the left sealing plate.

Preferably, a plurality of holes with gradually changing diameters are provided on the flow equalizer along the length direction.

Preferably, the filter screen is fixed through a slot provided on the casing.

The utility model also provides a condenser, which includes the oil separator in any one of the above technical solutions, characterized in that the oil separator is fixed on the upper part of the condenser through a support plate and a tie rod.

Preferably, a plurality of tie rods are fixed inside the condenser and arranged in parallel, and a plurality of support plates fix and connect the plurality of tie rods together.

Preferably, the condenser further includes a casing, a left tube sheet and a right tube sheet are respectively connected to both sides of the casing, and a left head and a right head are respectively connected to the outer sides of the left tube sheet and the right tube sheet by bolts.

Preferably, heat exchange tubes are also provided in the casing of the condenser.

Preferably, a liquid collection tank is provided at the lower part of the condenser, and the liquid collection tank is provided with a liquid outlet.

The oil separator in the utility model has the advantages of simple structure, small volume and simple connecting pipeline. In the utility model, the oil separator is built into the condenser, and after the first, second, third and fourth separations are performed inside the oil separator, the oil separation efficiency is improved, which is higher than the general built-in oil separation efficiency Out about 10%. In addition, the utility model is beneficial for the refrigerant to enter the condenser evenly, so that the refrigerant can contact the condensing pipe more uniformly, so that the heat exchange efficiency of the condenser is improved.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is the structural representation of the oil separator that the utility model relates to;

Fig. 2 is the structural representation of the condenser that the utility model relates to;

Fig. 3 is a schematic cross-sectional view of the condenser involved in the present invention.

Description of reference signs: 1. Water side inlet; 2. Left head; 3. Left tube plate; 4. Oil separator; 5. Shell; 6. Safety valve; 7. Right tube plate; 8. Right head ;9, heat exchange tube; 10, tie rod; 11, liquid outlet; 12, liquid collection tank; 13, support plate; 14, water side outlet; 15, refrigerant inlet; 16, shell; 17, upper cover plate; , filter screen; 19, equalizing plate; 20, right sealing plate; 21, oil return port; 22, left sealing plate; 23, baffle plate; 24, right baffle plate.

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

As shown in Figures 1 and 3, Figure 1 shows an oil separator 4, which is built into the condenser, preferably located on the upper part of the condenser, so that the overall structure of the condenser is simple and easy to assemble, specifically , the oil separator comprises a shell 16 with openings at both ends and a left sealing plate 22 and a right sealing plate 20 positioned on both sides of the shell 16, wherein the shell 16, the left sealing plate 22 and the right sealing plate 20 are connected to each other to form a closed space, so It can prevent the refrigerant gas from directly entering the condenser without being filtered. One side of the casing 16 is provided with a raised portion, and the upper end surface of the casing 16 is an upper cover plate 17, which is connected with the left sealing plate 22 and the right sealing plate 20, so as to ensure that the refrigerant will not enter the condenser through the gap. The raised portion is provided with a refrigerant inlet 15, the position of the refrigerant inlet 15 can match the position of the compressor, and at the same time make the refrigerant gas enter the condenser more evenly, which helps to improve the heat exchange efficiency of the condenser, inside the shell 16 and A baffle 23 is located directly below the refrigerant inlet 15. The baffle 23 is used for primary separation of oil and gas. One side of the baffle 23 is connected to the left sealing plate 22, and the side of the baffle 23 close to the left sealing plate 22 There is a hole on the top, the other side of the baffle 23 is connected with the right baffle 24, and the right baffle 24 is connected with the shell 16, the right baffle 24 is used for secondary separation of oil and gas to improve the oil separation efficiency, At the same time, the separated oil is prevented from being blown up again. Preferably, the baffle plate 23 is arranged in parallel with the upper cover plate 17 and at 90° with the right baffle plate 24 .

A flow equalizer 19 is provided inside the shell 16, which is connected to the right sealing plate 20. A plurality of gradually changing holes are arranged on the flow equalizer 19 along the length direction, and the apertures are from the side close to the left cover 22 to the right side. The side of the sealing plate 20 gradually increases. The three-stage separation of oil and gas by the equalizer plate 19 can effectively improve the oil separation efficiency on the one hand, and at the same time make it easier for the refrigerant gas to enter the condenser. There is a filter screen 18, which is used for four-stage separation of oil and gas. The distance between the equalizer plate 19 and the filter screen 18 is preferably 10-50mm. In addition, an oil return port 21 is provided on the side of the casing 16 of the oil separator. The above connections are all preferably welded.

As shown in Figure 2 and Figure 3, the above-mentioned oil separator is built in the condenser, specifically the above-mentioned oil separator is fixed on the upper part of the condenser through a plurality of support plates 13 and a plurality of tie rods 10, and the plurality of tie rods 10 are fixed on Inside the condenser and arranged in parallel, the plurality of support plates 13 fixedly connect the plurality of tie rods 10 together, the condenser also includes a shell 5, and the left tube plate 3 and the right tube plate are respectively connected on both sides of the shell 5 7. It is used to close the shell 5. On the outside of the left tube plate 3 and the right tube plate 7, the left head 2 and the right head 8 are respectively connected by bolts to close the entire condenser. In the condenser shell 5 There are also a plurality of parallel heat exchange tubes 9 inside, which are located below the oil separator 4, and the two ends of the heat exchange tubes 9 are respectively inserted into the corresponding holes on the left tube plate 3 and the right tube plate 7 to realize fixing. In addition, a water-side inlet 1 and a water-side outlet 14 are provided on the outside of the left head 2 of the condenser, and a liquid collection tank 12 is provided at the bottom of the condenser, and the liquid collection tank 12 is provided with a liquid outlet 11, which is used for Collect the separated refrigerant liquid. A safety valve 6 is provided on the upper part of the condenser, and the safety valve 6 is used to facilitate the control of refrigerant in and out.

By using the above-mentioned oil separator and the condenser with built-in oil separator, the specific process of oil separation of the refrigerant discharged from the compressor is as follows: the high-temperature and high-pressure refrigerant discharged from the compressor passes through the refrigerant installed on one side of the condenser. The inlet 15 enters the built-in oil separator 4. First, the refrigerant gas hits the baffle 23 arranged under the refrigerant inlet 15 for primary separation, and the refrigerant gas after the primary separation passes through the right baffle arranged on the side of the baffle 23 24 for secondary separation again, and the separated oil flows into the shell 5 of the condenser through the hole on the other side of the baffle plate 23 after the two separations; the separated refrigerant gas passes through the equalizer plate 19 for three-stage Separation, then the refrigerant gas passes through the filter screen 18 set on the upper part of the flow equalizer 19 for four-stage separation, and the lubricating oil after four separations all flows into the shell 16, and then flows to the compressor through the oil return port 21 due to the pressure difference. In the machine, the refrigerant gas that has been separated by three stages enters the condenser evenly, and becomes liquid after condensation. The refrigerant that becomes liquid is first stored in the liquid collection tank 12, and then flows into the next refrigeration unit from the liquid outlet 11. device.

The embodiments of the present utility model are only a description of the preferred implementation of the present utility model, and are not intended to limit the concept and scope of the present utility model. The various modifications and improvements made in the technical solution should fall within the scope of protection of the utility model, and the technical content claimed in the utility model has been fully recorded in the claims.

Claims (10)

1. A kind of oil separator, it is built in the condenser, comprises the shell (16) of opening at both ends and the left sealing plate (22) that is positioned at described shell (16) both sides and the right sealing plate (20), so One side of the shell (16) is provided with a protruding portion, and a refrigerant inlet (15) is provided on the protruding portion, and it is characterized in that, inside the shell (16) and located at the refrigerant inlet (15) A baffle (23) is provided directly below, one side of the baffle (23) is connected to the left sealing plate (22), and the other side of the baffle (23) is provided with a The right baffle (24) that extends on the side where (15) is located. 2. The oil separator according to claim 1, characterized in that, an equalizing plate (19) is provided in the housing (16), which is connected to the right sealing plate (20), and in the A filter screen (18) is arranged above the equalizing plate (19). 3. The oil separator according to claim 2, characterized in that, the baffle (23) is arranged horizontally and at a certain angle to the right baffle (24), and near the left seal Holes are provided on one side of the plate (22). 4. The oil separator according to claim 3, characterized in that, a plurality of holes with gradually changing diameters are provided on the flow equalizer (19) along the length direction. 5. The oil separator according to any one of claims 2-4, characterized in that, the filter screen (18) is fixed by a slot provided on the casing (16). 6. A condenser comprising the oil separator (6) according to any one of claims 1-5, characterized in that the oil separator is fixed on the the upper part of the condenser. 7. The condenser according to claim 6, characterized in that, a plurality of the tie rods (10) are fixed inside the condenser and arranged in parallel, and a plurality of the support plates (13) connect the plurality of tie rods (10) fixedly connected together. 8. The condenser according to claim 7, characterized in that, the condenser further comprises a shell (5), and a left tube plate (3) and a right tube plate (3) are respectively connected to both sides of the shell (5). The tube sheet (7), on the outside of the left tube sheet (3) and the right tube sheet (7), a left head (2) and a right head (8) are respectively connected by bolts. 9. The condenser according to claim 8, characterized in that, a heat exchange tube (9) is further provided in the casing (5) of the condenser. 10. The condenser according to claim 9, characterized in that a liquid collection tank (12) is provided at the lower part of the condenser, and the liquid collection tank (12) is provided with a liquid outlet (11).