CN108678956A - A kind of gs-oil separator - Google Patents

Abstract

The invention discloses an oil-gas separator, which comprises a cylinder body, an air inlet pipe extending tangentially from the side wall of the middle and lower part of the cylinder body into the cylinder body, the lower part of the disc shell is connected with the supporting shaft, and the upper part is connected with the exhaust port, and the exhaust port It is a circular tube with a step that can be used for positioning. There are small holes for air intake and oil discharge under the disc housing. The oil-air mixture entering from the intake pipe is blown vertically on the grid plate, and the oil-air mixture entering from the air intake hole is in the air. The discs flow radially inwards, and under the action of centrifugal force, oil droplets deposit on the lower surface of the discs, and slide downwards and outwards, and are discharged from the oil discharge holes on the disc casing to the oil storage tank in the barrel. From the oil return hole back to the compressor for recycling, the gas continues to flow to the center due to the small centrifugal force, and is discharged from the exhaust pipe. The invention can efficiently separate the oil-gas mixture, prolong the time interval for cleaning and replacing the filter element, effectively separate the oil return impurities, prevent the oil return pipeline from clogging, reduce the maintenance cost, and improve the reliability of the refrigeration system.

Description

an oil-gas separator

technical field

The invention belongs to the technical field of compressor oil-gas separation, and relates to an oil-gas separator.

Background technique

The separation efficiency of the oil-gas separator is an important index to evaluate the performance of the oil-injected compressor. Ordinary oil-gas separators use cyclone separation or gravity separation. The primary separation efficiency of this separation method is low, which will cause serious damage to the oil filter. A large burden requires frequent replacement of the oil filter element. If the lubricating oil enters the circulation system together with the refrigerant, an oil film will be formed on the surface of the heat exchanger, which will reduce the performance of the heat exchanger and reduce the lubricating oil circulating into the compressor, which will affect the life and reliability of the compressor , how to improve the separation efficiency of the oil separator is the most difficult problem facing the market.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide an oil-gas separator that can efficiently separate the oil-gas mixture, prolong the time interval for cleaning and replacing the filter element, effectively separate oil return impurities, prevent oil return pipeline from clogging, and reduce maintenance Cost, improve the reliability of the refrigeration system.

In order to achieve the above object, the present invention adopts the following technical solutions to achieve:

An oil-gas separator, comprising a cylinder body, the upper end of the cylinder body is provided with a flange end cover, the side wall of the cylinder body is provided with an air intake pipe, the air intake pipe is tangent to the side wall of the cylinder body and extends into the cylinder body; the flange end cover An exhaust pipe is installed on the top, and the lower end of the exhaust pipe extends into the cylinder body, and the lower end of the exhaust pipe is fixedly connected with the disc shell, and the lower part of the disc shell is fixedly connected with the support shaft, and the support shaft is installed on the cylinder body through the lower end bearing. Bottom; the upper side wall of the exhaust pipe is provided with a step for positioning, and is installed on the flange end cover through the upper end bearing; there are air intake holes and oil discharge holes under the disc shell, and several grid plates are installed in the middle and lower parts , the oil-air mixture coming in from the air intake pipe is blown vertically on the grid plate, driving the disc shell to rotate; there are multi-layer conical discs inside the disc shell, and the oil-air mixture entering from the air inlet is blown along the radial direction between the conical discs. Flowing inward, oil droplets are deposited on the lower surface of the conical disc under the action of centrifugal force, and slide downwards and outwards, and are discharged from the oil discharge hole on the disc shell to the oil storage tank in the barrel, from the The oil return hole on the side wall of the cylinder returns to the compressor for recycling, and the gas continues to flow to the center and is discharged from the exhaust pipe.

The further improvement of the present invention is:

Eight grid plates are welded in the lower part of the disc housing.

The cylinder body and the flange end cover are connected by bolts, and a sealing ring is arranged between them; the intake pipe and the cylinder body are welded together; the top of the disc shell is welded together with the lower end of the exhaust pipe.

The bottom of the disc housing is welded together with the support shaft, and the lower end of the support shaft is connected with the lower end bearing; the upper end of the inner ring of the lower end bearing leans against the shaft shoulder of the support shaft, and the lower end is positioned by the lower end circlip.

A felt for sealing is arranged between the exhaust pipe and the flange end cover.

The inner ring of the upper bearing is positioned by the shaft shoulder and the upper circlip, the outer ring of the upper bearing is positioned by the steps of the bearing end cover and the flange end cover respectively, and the bearing end cover and the flange end cover are connected by screws.

Four air intake holes and four oil discharge holes are arranged below the disc housing.

The conical discs are welded and fixed by ribs, and the ribs are welded together with the disc housing; each conical disc has holes at the same position above the air intake holes.

The piston on the oil return hole is connected to the spring leaf, and the top of the spring leaf is connected to the floating ball. When the oil in the oil storage tank continues to increase, the floating ball will continue to rise, and finally drive the spring leaf to push the piston on the oil return hole to discharge the oil. .

A filter element is installed on the exhaust pipe.

Compared with the prior art, the present invention has the following beneficial effects:

In the present invention, the oil-air mixture entering from the air intake pipe is blown vertically on the grid plate, driving the entire disc core to rotate at high speed, the oil-air mixture flows radially inward between the discs, and the oil droplets are deposited on the lower surface of the disc under the action of centrifugal force , and slide downwards and outwards, and discharge from the oil discharge hole on the disc casing to the oil storage tank in the cylinder body. Due to the small centrifugal force, the gas continues to flow to the center and is discharged from the exhaust pipe. The invention can efficiently separate the oil-gas mixture, prolong the time interval for cleaning and replacing the filter element, effectively separate the oil return impurities, prevent the oil return pipeline from clogging, reduce the maintenance cost, and improve the reliability of the refrigeration system.

Description of drawings

Fig. 1 is the schematic diagram of the front view structure of the oil-gas separator of the present invention;

Fig. 2 is a schematic diagram of the top view structure of the oil-gas separator of the present invention;

Fig. 3 is a schematic structural diagram of the main view of the disc core of the oil-gas separator of the present invention;

Fig. 4 is a schematic diagram of the upward view of the disc core of the oil-gas separator of the present invention;

Figure 5 is a schematic diagram of oil and gas flow between discs;

Among them: 1-bolt; 2-sealing ring; 3-flange end cover; 4-bearing end cover; 5-felt; 6-upper circlip; 7-exhaust pipe; 8-upper bearing; 9-screw; 10 -Cylinder; 11-Disc; 12-Disc shell; 13-Rib; 14-Grille; 15-Float; 16-Spring leaf; 17-Oil return hole; ; 20-lower circlip; 21-intake pipe; 22-disc hole;

Detailed ways

The present invention is described in further detail below in conjunction with accompanying drawing:

Referring to Fig. 1 and Fig. 2, the oil-gas separator of the present invention includes a cylinder body 10, a flange end cover 3 arranged at the upper end of the cylinder body 10, an air inlet pipe 21 extending tangentially from the middle and lower side wall of the cylinder body 10 into the cylinder body, It also includes a disc housing 12, the lower part of the disc housing 12 is connected with the support shaft 19, and the upper part is connected with the exhaust pipe 7. The exhaust pipe 7 has steps that can be used for positioning. Eight grid plates 14 are welded in the lower part of the disc shell 12, and the oil-air mixture coming in from the intake pipe 21 is blown vertically on the grid plates 14, driving the entire disc core to rotate at a high speed. Layers of conical discs 11, the conical discs 11 are welded and fixed by ribs 13 and rotate together with the disc shell 12, the oil-gas mixture entering from the air inlet flows radially inward between the conical discs 11, Oil droplets (a) are deposited on the lower surface of the conical disc 11 under the action of centrifugal force, and slide downwards and outwards, and are discharged from the oil discharge hole 24 on the disc housing 12 to the oil storage tank 25 in the cylinder 10, From the oil return hole 17 back to the compressor for recycling, the gas (b) continues to flow to the center due to the small centrifugal force, and is discharged from the exhaust pipe 7.

The cylinder body 10 and the flange end cover 3 are connected by bolts 1, and a sealing ring 2 is arranged between them. The air inlet pipe 21 extends tangentially from the lower side wall of the cylinder body 10 into the cylinder body, and the air inlet pipe 21 and the cylinder body 10 are fixed together by welding. The bottom of the disc casing 12 is welded with the support shaft 19 , and the lower end of the support shaft 19 is connected with the lower end bearing 18 . The upper end of the inner ring of the lower end bearing 18 leans against the shoulder of the support shaft 19 , and the lower end is positioned by the lower end jumper 20 .

A felt 5 is arranged between the exhaust pipe 7 and the flange end cover 3 for sealing. The top of the exhaust pipe 7 is connected with the upper end bearing 8, the inner ring of the upper end bearing 8 is respectively positioned by the shaft shoulder and the upper end circlip 6, the outer ring of the upper end bearing 8 is respectively positioned by the steps of the bearing end cover 4 and the flange end cover 3, and the bearing end The cover 4 and the flange end cover 3 are connected by screws 9 .

The annular oil storage tank 25 is the lowest near the oil return hole 17, the impurities in the oil-air mixture will settle at the bottom of the oil storage tank 25 due to the effect of gravity, and the clean oil returns to the compressor from the oil return hole 17 for recycling.

The piston on the oil return hole 17 is connected to the spring leaf 16, and the top of the spring leaf 16 is connected to a floating ball. When the oil in the oil storage tank 25 continues to increase, the floating ball will continue to rise, and finally drive the spring leaf 16 to open the oil return hole. The piston on 17 expels the oil.

A filter element 26 can be installed on the exhaust pipe 7 as required. Since the disc core can efficiently separate the oil-air mixture, the time interval for replacing the filter element is greatly extended.

As shown in FIG. 3 , the top of the disc housing 12 is welded together with the exhaust pipe 7 , and the exhaust pipe 7 has a step that can be used for positioning. Eight grid plates 14 are welded in the radial direction at the middle and lower part of the disc shell 12, and the gas coming in from the air intake pipe 21 blows vertically on the grid plates 14, driving the entire disc core to rotate at high speed. Multiple layers of conical discs 11 are sequentially arranged inside the disc housing 12 , and the conical discs 11 are fixed by welding ribs 13 , and the ribs 13 and the disc housing 12 are welded together. Each conical disc 11 has a hole 22 at the same position above the air inlet hole 23 .

As shown in FIG. 4 , four air intake holes 23 and four oil discharge holes 24 are opened under the disc housing 12 .

As shown in Figure 5, the oil-air mixture entering from the intake pipe 21 enters the disc core through the intake hole 23, enters between the conical discs 11 through the holes 22, and radially inwards between the conical discs 11. flow, under the action of centrifugal force, the oil drop a deposits on the lower surface of the conical disc 11, and slides downwards and outwards, and is discharged from the oil discharge hole 24 on the disc housing 12 to the oil storage tank 25 in the cylinder 10 , the gas b continues to flow to the center due to the small centrifugal force, and is discharged from the exhaust pipe 7.

The above descriptions are only preferred embodiments of the present invention. The oil-air mixture entering from the intake pipe is blown vertically on the grid plate, driving the entire disc core to rotate at high speed, the oil-air mixture flows radially inward between the discs, and the oil droplets are deposited on the lower surface of the disc under the action of centrifugal force, and Sliding downward and outward, the oil is discharged from the oil discharge hole on the disc casing to the oil storage tank in the cylinder body. Due to the small centrifugal force, the gas continues to flow to the center and is discharged from the exhaust pipe. The invention can efficiently separate the oil-gas mixture, prolong the time interval for cleaning and replacing the filter element, effectively separate the oil return impurities, prevent the oil return pipeline from clogging, reduce the maintenance cost, and improve the reliability of the refrigeration system.

The above content is only to illustrate the technical ideas of the present invention, and cannot limit the protection scope of the present invention. Any changes made on the basis of the technical solutions according to the technical ideas proposed in the present invention shall fall within the scope of the claims of the present invention. within the scope of protection.

Claims (10)

1. a kind of gs-oil separator, which is characterized in that including cylinder (10), cylinder (10) upper end is provided with flange end cap (3), cylinder It is provided with air inlet pipe (21) on body (10) side wall, the side wall of air inlet pipe (21) and cylinder (10) is tangent and stretches into cylinder；Flange Exhaust pipe (7) is installed, the lower end of exhaust pipe (7) is stretched into cylinder (10), and the lower end of exhaust pipe (7) and dish on end cap (3) Piece shell (12) is fixedly connected, and is fixedly connected with support shaft (19) below disk shell (12), support shaft (19) passes through lower end axis Hold the bottom that (18) are mounted on cylinder (10)；It is provided with step used for positioning in the upper portion side wall of exhaust pipe (7), and by upper End bearing (9) is mounted in flange end cap (3)；Air admission hole (23) and outage (24) are provided with below disk shell (12), under Portion is equipped with several screens (14), and the gas mixture come in from air inlet pipe (21) is vertically blown on screen (14), drives disk Shell (12) rotates；Disk shell (12) is internally provided with multilayer taper disk (11), and the oil gas entered from air admission hole (23) is mixed It closes object to flow radially inward between taper disk (11), oil droplet is deposited on taper disk (11) following table under the influence of centrifugal force On face, and downwardly and outwardly slide, it is inner to be discharged to the oil storage tank (25) in cylinder (10) from the outage (24) on disk shell (12), Compressor cycle is returned to from the oil return hole (17) being opened on cylinder (10) side wall to use, gas continues to center flow, from row Tracheae (7) is discharged.

2. gs-oil separator according to claim 1, which is characterized in that disk shell (12) middle and lower part is welded with eight grid Plate (14).

3. gs-oil separator according to claim 1, which is characterized in that by spiral shell between cylinder (10) and flange end cap (3) Bolt (1) connects, and is provided with one of sealing ring (2) between them；Air inlet pipe (21) is weldingly fixed on one with cylinder (10) It rises；Weld together with exhaust pipe (7) lower end above disk shell (12).

4. gs-oil separator according to claim 1, which is characterized in that welded with support shaft (19) below disk shell (12) It is connected together, the lower end of support shaft (19) is connected with bottom end bearing (18)；The inner ring upper end of bottom end bearing (18) leans against support shaft (19) on the shaft shoulder, lower end is positioned by lower end clamp spring (20).

5. gs-oil separator according to claim 1, which is characterized in that be arranged between exhaust pipe (7) and flange end cap (3) Felt (5) for sealing together.

6. gs-oil separator according to claim 1, which is characterized in that upper end bearing (8) inner ring is respectively by the shaft shoulder and upper Clamp spring (6) is held to position, upper end bearing (8) outer ring is positioned by bearing (ball) cover (4) and the step of flange end cap (3) respectively, bearing end It covers between (4) and flange end cap (3) and is connected by screw (9).

7. gs-oil separator according to claim 1, which is characterized in that air admission hole there are four being opened below disk shell (12) (23) and four outages (24).

8. gs-oil separator according to claim 1, which is characterized in that taper disk (11) is welded solid by rib (13) Fixed, rib (13) welds together with disk shell (12)；Each taper disk (11) identical position above air admission hole (23) It sets and is all provided with hole (22).

9. gs-oil separator according to claim 1, which is characterized in that the piston on oil return hole (17) and spring leaf (16) It is connected, the top connection floating ball (15) of spring leaf (16), when the oil in oil storage tank (25) is continuously increased, in floating ball meeting constantly It rises, finally drives the piston on spring leaf (16) open-top oil return hole (17) that oil is discharged.

10. gs-oil separator according to claim 1, which is characterized in that be equipped with filter core (26) on exhaust pipe (7).