Oil content economizer for cooling system

Abstract

The utility model relates to the field of refrigeration, and provides an oil content economizer for a cooling system. Comprising a shell, a vertical partition plate is installed in the shell and divides an inner cavity of the shell into an oil separation cavity and a gas-liquid separation cavity, the oil separation cavity and the gas-liquid separation cavity are mutually independent, a gas outlet pipe is installed on the other side of the top of the oil separation cavity, and an oil filtering device is installed in the oil separation cavity; the oil filtering device comprises a filtering assembly and a gas baffle, oil-containing gas exhausted from the exhaust end of the compressor sequentially passes through the silencing assembly, the bent plate adsorption assembly and the baffle, oil contained in the gas can be separated and adsorbed, the oil is prevented from entering the condenser, the oil separator and the gas-liquid separator are concentrated in the shell, and the oil-liquid separation efficiency is improved. The size and the composition number of the unit can be effectively reduced, and the inspection process is simplified.

Description

Technical Field

[0001] The utility model relates to the field of refrigeration, and particularly relates to an oil separator economizer for a cooling system. Background Art

[0002] During the refrigeration process of a refrigeration unit or an air-conditioning unit, generally, a compressor compresses a liquid refrigerant into a high-temperature and high-pressure gas. The high-temperature and high-pressure gas exchanges heat in a condenser or a heat exchanger to form a high-temperature and high-pressure refrigerant liquid, which is then throttled by an expansion valve and converted into a low-temperature and low-pressure gas-liquid mixture. The gas-liquid mixture exchanges heat in an evaporator and is converted into a refrigerant gas. The refrigerant gas enters from the suction port of the compressor and is compressed to form a refrigeration cycle.

[0003] During the operation of the compressor, the compressed refrigerant gas will contain a small amount of lubricating oil in the compressor. The lubricating oil will affect the entire refrigeration cycle. Generally, an oil separator is required to separate the oil. The refrigerant after heat exchange in the condenser and throttled by the first-stage expansion valve is in a gas-liquid mixed state. By sending the gaseous refrigerant into the suction port in the middle of the compressor through a gas-liquid separator, the working intensity of the compressor can be effectively reduced, thereby reducing energy consumption. In a conventional unit, the gas-liquid separation device and the oil separation device are two independent entities, which increases the volume of the unit and also increases the workload of maintenance or inspection. Summary of the Invention

[0004] On the basis of ensuring the effects of oil-gas separation and gas-liquid separation, in order to save the volume of the unit, simplify the components of the unit, and reduce the workload of maintenance and inspection, the utility model provides an oil separator economizer for a cooling system.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An oil separator economizer for a cooling system, comprising a housing. The housing is a horizontal cylindrical structure, and end caps are respectively installed at both ends of the housing. A vertical partition is installed inside the housing, and the vertical partition divides the inner cavity of the housing into an oil separation chamber and a gas-liquid separation chamber. The oil separation chamber and the gas-liquid separation chamber are independent of each other. An air inlet pipe is installed on one side of the top of the oil separation chamber, and a muffler is installed inside the oil separation chamber. The muffler is communicated with the air inlet pipe. An air outlet pipe is installed on the other side of the top of the oil separation chamber. A oil filtering device is installed inside the oil separation chamber, and the oil filtering device covers the air inlet of the air outlet pipe. Outside the center of the bottom of the oil separation chamber, a liquid packet assembly is provided. The liquid packet assembly is communicated with the oil separation chamber, and a drain pipe is connected to the bottom of the liquid packet assembly. The oil filtering device includes a filtering component and a gas baffle. The filtering component is horizontally arranged inside the oil separation chamber. One end of the filtering component is in contact and cooperation with the partition, and the other end of the filtering component is connected to the inner cavity wall of the oil separation chamber by a vertical support plate. The gas baffle is installed between the filtering component and the air outlet pipe. The gas baffle is a V-shaped bent plate, and air inlet holes are provided on both sides of the gas baffle. The top edge of the gas baffle is welded to the inner side of the oil separation chamber. The length direction of the gas baffle extends between the partition and the support plate, and both ends of the gas baffle are closed. A liquid inlet pipe and a liquid outlet pipe are connected to the bottom of the gas-liquid separation chamber, and an exhaust pipe is installed on the top of the gas-liquid separation chamber. A plurality of horizontally arranged baffles are installed inside the gas-liquid separation chamber. The air inlet pipe at the top of the oil separation chamber is communicated with the exhaust port of the compressor, the drain pipe at the bottom of the oil separation chamber is connected to the suction port of the compressor, the exhaust pipe at the top of the gas-liquid separation chamber is communicated with the intermediate suction port of the compressor, and the liquid inlet pipe and the liquid outlet pipe at the bottom of the gas-liquid separation chamber are respectively connected to the liquid outlet end of the first-stage expansion valve and the liquid inlet end of the second-stage expansion valve.

[0007] Further, the muffler includes an air inlet pipe, a buffer chamber, and a silencing chamber that are sequentially communicated. The air inlet pipe is communicated with the buffer chamber and the air inlet pipe, and silencing holes are uniformly distributed on the side walls of the silencing chamber.

[0008] Further, the filtering component includes a frame body and a plurality of parallelly arranged bent adsorption plates installed inside the frame body. A zigzag channel penetrating up and down is formed between adjacent bent adsorption plates.

[0009] Further, a baffle is provided between the filtering component and the liquid packet assembly, and both ends of the baffle are welded and fixed to the inner cavity wall of the oil separation chamber.

[0010] Further, the liquid packet assembly includes a liquid packet cavity body and a heating component installed inside the liquid packet cavity body.

[0011] Further, the support plate is a semi-circular plate, and the support plate and the partition close the air inlet surfaces on both sides of the filtering component.

[0012] Further, the bottom of the filtering component is supported by a plurality of supporting blocks, and the supporting blocks are welded to the inner wall of the housing.

[0013] Furthermore, the oil separation chamber, the gas-liquid separation chamber, and the liquid packet assembly are respectively provided with a temperature measurement port and a sight glass port.

[0014] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0015] The oil-containing gas discharged from the exhaust end of the compressor sequentially passes through the silencing component, the bending plate adsorption component, and the baffle, which can separate and adsorb the oil contained in the gas, prevent the oil from entering the condenser, and the separated oil is collected by the liquid packet assembly at the bottom and then returned to the compressor for continuous lubrication; the gas in the gas-liquid mixture output from the first-stage expansion valve is separated, and the liquid continues to be throttled by the second-stage expansion valve unit and sent into the evaporator, and the separated gas enters the compressor for continuous compression, which can achieve energy conservation; concentrating the oil separator and the gas-liquid separator in one housing can effectively reduce the volume and the number of components of the unit and simplify processes such as inspection. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the present utility model.

[0017] Figure 2 It is a side view.

[0018] In the figure: housing 1, head 2, partition 3, oil separation chamber 4, gas-liquid separation chamber 5, intake pipe 6, silencer 7, intake pipeline 71, buffer chamber 72, silencing chamber 73, outlet pipe 8, filtering component 9, air baffle 10, support plate 11, intake hole 12, liquid packet assembly 13, electric heating component 14, liquid inlet pipe 15, liquid outlet pipe 16, exhaust pipe 17, baffle 18. Detailed Embodiment

[0019] The following further details the specific embodiments of the present utility model with reference to the drawings:

[0020] As Figure 1-2 shown, an oil separator economizer for a cooling system includes a housing 1. The housing is a horizontal cylindrical structure. Heads 2 are respectively installed at both ends of the housing 1 to seal the housing. A vertical partition 3 is installed inside the housing. The inner cavity of the housing is divided into two independent cavities, namely an oil separation chamber 4 and a gas-liquid separation chamber 5, by the vertical partition 3. The oil separation chamber 4 is for the oil-gas separation at the exhaust end of the compressor, and the gas-liquid separation chamber 5 is for the gas-liquid separation after the first-stage expansion valve.

[0021] An air inlet pipe 6 is installed on one side of the top of the oil separation chamber 4 and is used to connect to the exhaust port of the compressor. A silencer 7 is installed inside the oil separation chamber 4. The silencer 7 is communicated with the air inlet pipe 6 and is used for silencing the exhaust gas of the compressor. The silencer 7 is composed of an air inlet pipe 71, a buffer chamber 72 and a silencing chamber 73 which are sequentially communicated. Both the buffer chamber 72 and the silencing chamber 73 are cylindrical cavities. The air inlet pipe 71 communicates the air inlet pipe 6 with the buffer chamber 72. The side wall of the silencing chamber 73 is evenly distributed with silencing holes, and the oil-containing gas enters the oil separation chamber 4 through the silencing holes. An air outlet pipe 8 is installed on the other side of the top of the oil separation chamber 4. An oil filtering device is installed in the oil separation chamber 4. The oil filtering device covers the connection port of the air outlet pipe 8 and the cavity. The oil-containing gas is discharged to the condenser through the air outlet pipe 8 after passing through the oil filtering device.

[0022] The oil filtering device is composed of a filtering component 9 and a gas baffle 10. The filtering component 9 is horizontally arranged in the oil separation chamber 4. One end of the filtering component 9 is connected and matched with the partition plate 3. The other end of the filtering component is connected to the inner cavity wall of the oil separation chamber 4 by a vertical support plate 11. The support plate 11 is a semi-circular plate. The support plate 11 and the partition plate 3 enclose the air inlet surfaces on both sides of the filtering component 9. The oil-containing gas can only enter the air outlet pipe 8 after passing through the filtering component 9 from the bottom of the filtering component 9. The bottom of the filtering component 9 is supported by a plurality of support blocks, and the support blocks are welded to the inner wall of the shell. The filtering component 9 is composed of a frame body and a plurality of parallel bending adsorption plates or adsorption nets installed in the frame body. A zigzag channel penetrating up and down is formed between adjacent bending adsorption plates. The oil contained in the gas is adsorbed or blocked when passing through the filtering component 9 and then flows down along the cavity bottom, while the gas continues to move upward.

[0023] The gas baffle 10 is installed between the filtering component 9 and the air outlet pipe 8. The gas baffle 10 is a V-shaped bending plate. Air inlet holes 12 are arranged on both sides of the gas baffle 10. The top edge of the gas baffle 10 is welded to the inner side surface of the oil separation chamber 4. The length direction of the gas baffle 10 extends between the partition plate 3 and the support plate 11, and both ends of the gas baffle 10 are closed. The gas adsorbed by the filtering component 9 moves upward and is blocked by the gas baffle 10. The oil therein collides with the gas baffle and is left behind and slides down along the gas baffle 10. The gas enters the cavity formed by the gas baffle 12 and the shell from the air inlet holes 12 on the side surface of the gas baffle 10, and finally is discharged from the air outlet pipe 8 and enters the condenser.

[0024] A liquid package assembly 13 is installed outside the center of the bottom of the oil separation chamber 4. A baffle is arranged between the filtering component 9 and the liquid package assembly 13, and both ends of the baffle are welded and fixed to the inner cavity wall of the oil separation chamber. The liquid package assembly 13 is communicated with the oil separation chamber 4. A drain pipe or a drain valve is connected to the bottom of the liquid package assembly 13 and is used to drain the collected oil to the compressor for further lubrication. An electric heating component 14 is installed on the liquid package assembly 13 to heat the oil when the temperature is relatively low.

[0025] The bottom of the gas-liquid separation chamber 5 is connected with a liquid inlet pipe 15 and a liquid outlet pipe 16. An exhaust pipe 17 is installed at the top of the gas-liquid separation chamber 5. A plurality of horizontally arranged baffles 18 are installed in the gas-liquid separation chamber 5, and the baffles 18 of each layer are staggered to form a zigzag channel. The gas-liquid mixture discharged from the first-stage expansion assembly enters from the liquid inlet pipe 15 of the gas-liquid separation chamber. After being blocked by the multi-stage baffles 18, the gas enters the middle suction port of the compressor from the exhaust pipe 17 at the top, and the separated liquid enters the second-stage expansion valve assembly through the liquid outlet pipe 16 for further throttling.

[0026] For the convenience of monitoring, temperature measurement ports and sight glass ports are respectively provided in the oil separation chamber, the gas-liquid separation chamber and the liquid package assembly.

Claims

1. An oil separator economizer for a cooling system, comprising a housing. The housing is a horizontal cylindrical structure, and end caps are respectively installed at both ends of the housing. It is characterized in that, A vertical partition is installed inside the housing. The vertical partition divides the inner cavity of the housing into an oil separation chamber and a gas-liquid separation chamber. The oil separation chamber and the gas-liquid separation chamber are independent of each other. An air inlet pipe is installed on one side of the top of the oil separation chamber, and a silencer is installed inside the oil separation chamber. The silencer is connected to the air inlet pipe. An air outlet pipe is installed on the other side of the top of the oil separation chamber. An oil filtering device is installed inside the oil separation chamber, and the oil filtering device covers the air inlet of the air outlet pipe. A liquid packet assembly is arranged outside the center of the bottom of the oil separation chamber. The liquid packet assembly is connected to the oil separation chamber, and a liquid discharge pipe is connected to the bottom of the liquid packet assembly. The oil filtering device includes a filtering component and a gas baffle. The filtering component is horizontally arranged inside the oil separation chamber. One end of the filtering component is in contact and cooperation with the partition. The other end of the filtering component is connected to the inner cavity wall of the oil separation chamber by a vertical support plate. The gas baffle is installed between the filtering component and the air outlet pipe. The gas baffle is a V-shaped bent plate. Air inlet holes are arranged on both sides of the gas baffle. The top edge of the gas baffle is welded to the inner side surface of the oil separation chamber. The length direction of the gas baffle extends between the partition and the support plate, and both ends of the gas baffle are closed. A liquid inlet pipe and a liquid outlet pipe are connected to the bottom of the gas-liquid separation chamber. An exhaust pipe is installed on the top of the gas-liquid separation chamber. Multiple horizontally arranged baffles are installed inside the gas-liquid separation chamber. The air inlet pipe at the top of the oil separation chamber is connected to the exhaust port of the compressor. The liquid discharge pipe at the bottom of the oil separation chamber is connected to the suction port of the compressor. The exhaust pipe at the top of the gas-liquid separation chamber is connected to the intermediate suction port of the compressor. The liquid inlet pipe and the liquid outlet pipe at the bottom of the gas-liquid separation chamber are respectively connected to the liquid outlet end of the first-stage expansion valve and the liquid inlet end of the second-stage expansion valve.

2. The oil separator economizer for a cooling system according to claim 1, characterized in that, The silencer includes an air inlet pipe, a buffer chamber, and a silencing chamber that are connected in sequence. The air inlet pipe connects the air inlet pipe and the buffer chamber, and silencing holes are evenly distributed on the side walls of the silencing chamber.

3. The oil separator economizer for a cooling system according to claim 1, characterized in that, The filtering component includes a frame body and multiple parallel bent adsorption plates installed inside the frame body. A folded line channel that penetrates up and down is formed between adjacent bent adsorption plates.

4. The oil separator economizer for a cooling system according to claim 1, characterized in that, A baffle is arranged between the filtering component and the liquid packet assembly. Both ends of the baffle are welded and fixed to the inner cavity wall of the oil separation chamber.

5. The oil separator economizer for a cooling system according to claim 1, characterized in that, The liquid packet assembly includes a liquid packet cavity body and a heating component installed inside the liquid packet cavity body.

6. The oil separator economizer for a cooling system according to claim 1, wherein The support plate is a semi-circular plate. The support plate and the partition close the air inlet surfaces on both sides of the filtering component.

7. An oil separator economizer for a cooling system according to claim 1, wherein, The bottom of the filtering component is supported by multiple support blocks, and the support blocks are welded to the inner wall of the housing.

8. An oil separator economizer for a cooling system according to claim 1, characterized in that, The oil separation chamber, the gas-liquid separation chamber, and the liquid packet assembly are respectively provided with a temperature measuring port and a sight glass port.

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