Oil separator for compressor of vapor compression system

Abstract

The utility model discloses an oil separator for a compressor of a vapor compression system. The oil separator comprises a tank body, a tank cover is movably installed at the top end of the tank body, a baffle is fixedly installed in the tank body, a gas collecting box is movably installed at the top end of the baffle, and spiral blades are fixedly installed on the outer surface of the gas collecting box. The servo motor drives the driving gear to rotate, then the driving gear drives the driven gear to rotate, the driven gear drives the air outlet pipe to rotate in the tank body, at the moment, the air outlet pipe rotates to drive the spiral blade on the surface of the air collecting box to rotate synchronously, and the spiral blade scrapes the inner wall of the tank body; after the device separates oil from gas, the oil is attached to the inner wall of the tank body and slides downwards at a low speed, the inner wall of the tank body is scraped through the spiral blades, so that the oil can flow into the bottom position in the tank body quickly, the oil-gas separation speed is increased, and the situation that the use of the compressor is affected due to slow oil collection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil separator technical field, specifically for the oil separator of compressor for vapor compression system. BACKGROUND

[0002] The oil separator separates the lubricating oil in the high-pressure steam discharged by the refrigeration compressor to ensure that the device operates safely and efficiently. According to the oil separation principle of reducing airflow speed and changing airflow direction, the oil particles in the high-pressure steam are separated under the action of gravity.

[0003] The existing oil separator often causes the oil to adhere to the inner wall of the tank during use, resulting in a low oil collection rate, which in turn reduces the rate of compressor backflow oil, thereby affecting the use of the compressor. Therefore, it does not meet the existing needs, and for this purpose, we propose an oil separator for a compressor of a vapor compression system. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an oil separator for a compressor of a vapor compression system to solve the problem of the oil separator in the above background technology, which often causes the oil to adhere to the inner wall of the tank during use, resulting in a low oil collection rate, which in turn reduces the rate of compressor backflow oil, thereby affecting the use of the compressor.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an oil separator for a compressor of a vapor compression system, comprising a tank, a tank cover movably mounted at the top end of the tank, a baffle fixedly installed inside the tank, a gas collection tank movably installed at the top end of the baffle, a spiral vane fixedly installed on the outer surface of the gas collection tank, three filter screens movably installed inside the gas collection tank, an air outlet pipe fixedly installed at the top end of the gas collection tank, an air outlet provided at the top end of the tank cover, the top end of the air outlet pipe movably inserted into the inside of the air outlet, and the spiral vane is attached to the inner wall surface of the tank.

[0006] Preferably, a lower matching block is fixedly installed at the center of the top end of the tank cover, an upper matching block is movably installed at the top end of the lower matching block, the top end of the air outlet pipe is movably inserted into the inside of the lower matching block and the upper matching block, and an active slot is provided at the position where the lower matching block and the upper matching block contact.

[0007] Preferably, a driven gear is fixedly installed on the outer surface of the air outlet pipe at the position of the active slot, a driving gear is engagedly connected to the outer surface of the driven gear, the bottom end of the driving gear is rotatably connected to the surface of the tank cover, a servo motor is provided at the top end of the driving gear, and the output end of the servo motor is connected to the shaft center of the driving gear through a shaft coupling.

[0008] Preferably, the inner wall surface of the gas collecting box is fixedly provided with three check rings, the surface of each check ring is fixedly provided with four annular plates, the outer surface of the filter screen is fixedly provided with four mounting hooks, the mounting hooks are movably clamped into the inner part of the annular plate, and the bottom end center of the filter screen is in a semicircular shape protruding downward.

[0009] Preferably, the side of the tank body near the top end is provided with an air inlet, the side of the tank body provided with the air inlet near the bottom end is provided with a manual oil outlet, the other side of the tank body is provided with an automatic oil outlet, and the inner part of the automatic oil outlet is provided with a float valve.

[0010] Preferably, the surface of the baffle is provided with six air leakage openings, and the surface of each air leakage opening is provided with an inclined groove between the top end surface of the baffle.

[0011] Compared with the prior art, the device has the advantages that:

[0012] 1. The device is driven by the servo motor to rotate the driving gear, which in turn drives the driven gear to rotate, so that the driven gear drives the air outlet pipe to rotate in the tank body. At this time, the rotation of the air outlet pipe drives the spiral blades on the surface of the gas collecting box to rotate synchronously, so that the spiral blades scrape the inner wall of the tank body. When the device separates oil from gas, the oil will adhere to the inner wall of the tank body and slowly slide downward. The spiral blades scrape the inner wall of the tank body, so that the oil can quickly flow into the bottom of the tank body, accelerating the oil-gas separation rate and avoiding slow oil collection affecting the use of the compressor.

[0013] 2. The device is driven by the servo motor to rotate the driving gear, which in turn drives the driven gear to rotate, so that the driven gear drives the air outlet pipe to rotate in the tank body. At this time, the rotation of the air outlet pipe drives the spiral blades on the surface of the gas collecting box to rotate synchronously, so that the spiral blades scrape the inner wall of the tank body. When the device separates oil from gas, the oil will adhere to the inner wall of the tank body and slowly slide downward. The spiral blades scrape the inner wall of the tank body, so that the oil can quickly flow into the bottom of the tank body, accelerating the oil-gas separation rate and avoiding slow oil collection affecting the use of the compressor.

[0014] 3. When the filter screen needs to be replaced or maintained, the upper and lower cooperation blocks are separated first, and then the tank body is removed from the top of the tank cover. At this time, the air outlet pipe and the gas collecting box can be pulled out from the inside of the tank body. Then, the filter screen can be rotated to make the mounting hooks rotate out of the inner part of the annular plate, so that the filter screen can be pulled out from the gas collecting box, facilitating the replacement or cleaning and maintenance of the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the whole structure of the device.

[0016] Fig. 2 It is the sectional front view of the whole of the utility model;

[0017] Fig. 3 It is the sectional side view of the whole of the utility model;

[0018] Fig. 4 It is the sectional plan view of the baffle position of the utility model.

[0019] In the figure: 1, tank body; 2, tank cover; 3, lower matching block; 4, upper matching block; 5, driving gear; 6, servo motor; 7, automatic oil outlet; 8, air inlet; 9, manual oil outlet; 10, air outlet; 11, driven gear; 12, air outlet pipe; 13, gas collection tank; 14, spiral blade; 15, filter screen; 16, annular plate; 17, mounting hook; 18, baffle; 19, air leakage port; 20, floating ball valve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Please refer to Figs. 1 to 4 An embodiment provided by the utility model: an oil separator of a compressor for a vapor compression system, comprising a tank body 1, the top end of the tank body 1 movably installs a tank cover 2, the inside of the tank body 1 fixedly installs a baffle 18, the top end of the baffle 18 movably installs a gas collection tank 13, the outer surface of the gas collection tank 13 fixedly installs a spiral blade 14, the inside of the gas collection tank 13 movably installs three filter screens 15, the top end of the gas collection tank 13 fixedly installs an air outlet pipe 12, the top end of the tank cover 2 is equipped with an air outlet 10, the top end of the air outlet pipe 12 movably clamps into the inside of the air outlet 10, the spiral blade 14 is pasted with the inner wall surface of the tank body 1.

[0022] Through the cooperation of the gas collection tank 13 and the filter screen 15, when the device is used, the gas entering the inside of the gas collection tank 13 can be filtered twice through the filter screen 15, the filtering precision is improved through the three layers of filter screens 15, the condition that oil and gas are not completely separated is avoided, and the oil can be collected through the semicircular protrusion at the bottom of the filter screen 15, the time of oil dropping from the surface of the filter screen 15 to the inside bottom of the tank body 1 is accelerated, and the oil and gas separation efficiency of the device is improved.

[0023] The center of the top end of the tank cover 2 fixedly installs a lower matching block 3, the top end of the lower matching block 3 movably installs an upper matching block 4, the top end of the air outlet pipe 12 movably clamps into the inside of the lower matching block 3 and the upper matching block 4, and the position where the lower matching block 3 and the upper matching block 4 contact is equipped with a movable groove.

[0024] The outer surface of the movable groove position of the air outlet pipe 12 is fixedly provided with a driven gear 11, the outer surface of the driven gear 11 is engaged with a driving gear 5, the bottom end of the driving gear 5 is rotatably connected with the surface of the tank cover 2, the top end of the driving gear 5 is provided with a servo motor 6, and the output end of the servo motor 6 is connected with the shaft center of the driving gear 5 through a shaft coupling.

[0025] Through the cooperation of the driving gear 5 and the driven gear 11, when the device is used, the driving gear 5 can be driven to rotate by the servo motor 6, and then the driven gear 11 is driven to rotate by the driving gear 5, so that the driven gear 11 drives the air outlet pipe 12 to rotate in the inside of the tank body 1, at this time, the air outlet pipe 12 rotates and drives the spiral blades 14 on the surface of the gas collecting box 13 to rotate synchronously, so that the spiral blades 14 scrape the inner wall of the tank body 1, when the device separates oil from gas, the oil will adhere to the inner wall of the tank body 1 and slowly slide downward, through the scraping of the spiral blades 14 on the inner wall of the tank body 1, the oil can quickly flow into the bottom position inside the tank body 1, which accelerates the oil-gas separation rate and avoids the slow oil collection affecting the use of the compressor.

[0026] The inner wall surface of the gas collecting box 13 is fixedly provided with three check rings, the surface of the check ring is fixedly provided with four annular plates 16, the outer surface of the filter screen 15 is fixedly provided with four mounting hooks 17, the mounting hooks 17 are movably clamped into the inside of the annular plate 16, and the bottom center of the filter screen 15 is in the shape of a semicircle protruding downward.

[0027] Through the cooperation of the annular plate 16 and the mounting hook 17, when it is necessary to replace or maintain the filter screen 15, the upper cooperation block 4 and the lower cooperation block 3 can be separated first, then the tank body 1 can be removed from the top of the tank cover 2, at this time, the air outlet pipe 12 and the gas collecting box 13 can be pulled out from the inside of the tank body 1, then the filter screen 15 can be rotated to make the mounting hook 17 rotate out of the inside of the annular plate 16, so that the filter screen 15 can be pulled out from the gas collecting box 13, which is convenient for replacing or cleaning and maintaining the filter screen 15.

[0028] The side of the tank body 1 near the top end is provided with an air inlet 8, the side of the tank body 1 provided with the air inlet 8 near the bottom end is provided with a manual oil outlet 9, the other side of the tank body 1 is provided with an automatic oil outlet 7, and the inside of the automatic oil outlet 7 is provided with a float valve 20.

[0029] The surface of the baffle plate 18 is provided with six air leakage holes 19, and the surface of the air leakage hole 19 is provided with an inclined groove between the top end surface of the baffle plate 18.

[0030] The oil separator of the compressor for the vapor compression system in use, first make the compressor refrigerant gas connection pipe and the air inlet 8 connection, and make the automatic oil outlet 7 and the manual oil outlet 9 and the compressor oil return pipe connection, subsequently by the compressor refrigerant gas from the air inlet 8 into the inside of the tank 1, the gas will flow into the surface position of the baffle 18 through the spiral path of the spiral blade 14 surface, and through the air leakage 19 of the baffle 18 surface flow into the bottom position of the tank 1, at this time due to the centrifugal force, the oil in the gas will be separated to the inner wall surface of the tank 1, the oil will flow down along the inner wall surface of the tank 1 and through the air leakage 19 flow into the bottom position inside the tank 1 to collect, while the gas will enter the inside of the outlet pipe 12 through the bottom of the gas collection tank 13, and through the filter screen 15 to carry out secondary oil gas separation, make the refrigerant gas reflow into the compressor from the gas outlet 10, and through the automatic oil outlet 7 or the manual oil outlet 9 to reimport the separated oil into the compressor, complete the oil gas separation

[0031] When the refrigerant gas enters the inside of the spiral blade 14, the driving gear 5 can be driven to rotate by the servo motor 6, and then the driven gear 11 is driven to rotate by the driving gear 5, so that the driven gear 11 drives the outlet pipe 12 to rotate in the inside of the tank 1, at this time the outlet pipe 12 rotates and drives the spiral blade 14 on the surface of the gas collection tank 13 to rotate synchronously, so that the spiral blade 14 scrapes the oil on the inner wall surface of the tank 1, so that the oil can quickly flow into the bottom position in the inside of the tank 1, and the oil gas separation rate is accelerated, avoiding that the slow oil collection affects the use of the compressor.

[0032] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An oil separator for a compressor in a vapor compression system, comprising a tank (1), characterized in that: A can lid (2) is movably installed on the top of the tank (1). A baffle (18) is fixedly installed inside the tank (1). A gas collecting box (13) is movably installed on the top of the baffle (18). A spiral blade (14) is fixedly installed on the outer surface of the gas collecting box (13). Three filters (15) are movably installed inside the gas collecting box (13). An air outlet pipe (12) is fixedly installed on the top of the gas collecting box (13). An air outlet (10) is provided on the top of the can lid (2). The top of the air outlet pipe (12) is movably inserted into the air outlet (10). The spiral blade (14) is in contact with the inner wall surface of the tank (1).

2. The oil separator for a compressor in a vapor compression system according to claim 1, characterized in that: A lower fitting block (3) is fixedly installed at the center of the top of the can lid (2), and an upper fitting block (4) is movably installed at the top of the lower fitting block (3). The top of the vent pipe (12) is movably inserted into the interior of the lower fitting block (3) and the upper fitting block (4). A movable groove is provided at the contact position of the lower fitting block (3) and the upper fitting block (4).

3. The oil separator for a compressor in a vapor compression system according to claim 2, characterized in that: The outer surface of the air outlet pipe (12) located in the movable slot is fixedly equipped with a driven gear (11). The outer surface of the driven gear (11) is meshed with a driving gear (5). The bottom end of the driving gear (5) is rotatably connected to the surface of the can cover (2). The top end of the driving gear (5) is equipped with a servo motor (6). The output end of the servo motor (6) is connected to the shaft of the driving gear (5) through a coupling.

4. The oil separator for a compressor in a vapor compression system according to claim 1, characterized in that: The inner wall surface of the air collection box (13) is fixedly installed with three retaining rings, and four annular plates (16) are fixedly installed on the surface of each retaining ring. The outer surface of the filter screen (15) is fixedly installed with four mounting hooks (17). The mounting hooks (17) are movably inserted into the interior of the annular plates (16). The bottom center of each filter screen (15) is a downwardly convex semi-circle.

5. The oil separator for a compressor in a vapor compression system according to claim 1, characterized in that: The tank (1) has an air inlet (8) at the top of one side, a manual oil outlet (9) at the bottom of the side with the air inlet (8), and an automatic oil outlet (7) on the other side of the tank (1). The automatic oil outlet (7) has a float valve (20) inside.

6. The oil separator for a compressor in a vapor compression system according to claim 1, characterized in that: The surface of the baffle (18) is provided with six air vents (19), and the surface of each air vent (19) is provided with an inclined groove between it and the top surface of the baffle (18).

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