Vapor-liquid-oil separator special for Freon
By designing a dedicated vapor-liquid-oil separator for Freon, utilizing density differences and gravity, combined with an oil baffle cap and a float valve, the separation of oil and liquid is achieved. This solves the problem of unsatisfactory separation effect of traditional separators under high flow rate conditions, and improves the stability and efficiency of the refrigeration system.
Patent Information
- Application Number
- CN202520221859.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Traditional vapor-liquid-oil separators do not perform well under high flow rates or high load conditions and lack an effective oil recovery mechanism, which affects the efficiency and stability of the refrigeration system.
A special vapor-liquid-oil separator for Freon was designed, which uses components such as a tank, liquid supply pipe, steam inlet pipe, steam outlet pipe and float valve. It uses density difference and gravity to separate oil and refrigerant. The oil baffle and float valve work together to ensure that the oil and liquid are separated and then flow out separately. The float valve controls the oil circulation.
It improves the separation efficiency of gas, liquid, and oil, reduces the possibility of gas carrying liquid droplets, ensures the stable operation of the refrigeration system, and reduces system energy consumption and maintenance costs.
Smart Images

Figure CN223709978U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of vapor-liquid oil separator, and specifically to a freon special vapor-liquid oil separator. BACKGROUND
[0002] In a refrigeration system, freon is a commonly used refrigerant, widely used in air conditioning, refrigerator and other refrigeration equipment. However, freon often carries a certain amount of lubricating oil (oil) in the circulation process. If these oils are not effectively separated, it will affect the efficiency and stability of the refrigeration system. Specifically, oil entering the evaporator will reduce the heat exchange efficiency, and entering the compressor may cause poor lubrication, and even damage the equipment. Therefore, the vapor-liquid oil separator plays a crucial role in the refrigeration system.
[0003] Traditional vapor-liquid oil separators usually use simple gravity separation principle, that is, using the density difference between oil and refrigerant to make oil settle by gravity to achieve separation. However, this separation method has certain limitations, especially under high flow rate or high load conditions, the separation effect is often not ideal, which leads to incomplete separation of oil and refrigerant, and further affects the normal operation of the system.
[0004] In addition, the traditional separator also has some shortcomings in structure design. For example, the flow channel design inside the separator is unreasonable, which may increase the mixing degree of oil and refrigerant, and reduce the separation effect. At the same time, the traditional separator lacks effective oil recovery mechanism, which leads to continuous circulation of oil in the system, increasing the energy consumption and maintenance cost of the system. SUMMARY
[0005] In view of the above shortcomings in the prior art, the utility model aims to provide a vapor-liquid oil separator that ensures the stable operation of the refrigeration system.
[0006] The technical scheme adopted by the utility model to achieve the above-mentioned purpose is: a freon special vapor-liquid oil separator, comprising a tank body, a liquid supply pipe A, a liquid supply pipe B, an inlet pipe, an outlet pipe, an oil supply pipe and a floating ball valve, the middle part of the tank body is fixedly connected with the liquid supply pipe A, the bottom end of the tank body is fixedly connected with the liquid supply pipe B, an oil blocking cap is fixedly connected between the liquid supply pipe A and the liquid supply pipe B inside the tank body, a liquid tank is provided on the oil blocking cap, the top end of the liquid supply pipe B is located in the liquid tank, the oil supply pipe is fixedly connected between the oil blocking cap and the liquid supply pipe A on the tank body, the floating ball valve is provided on the area of the oil supply pipe in the tank body, the inlet pipe is fixedly connected to the upper part of the liquid supply pipe A on the tank body, and the outlet pipe is fixedly connected to the upper part of the inlet pipe on the tank body.
[0007] In the technical scheme, the liquid supply pipe A is provided with a bending part A inside the tank body, and the bending part A faces the inner wall of the tank body.
[0008] In the technical scheme, the steam inlet pipe is provided with a bending part B inside the tank body, and the bending part B is arranged downward.
[0009] In the technical scheme, the steam outlet pipe is provided with a bending part C inside the tank body, and the bending part C is arranged upward.
[0010] In the technical scheme, the oil blocking cap is fixedly connected with a connecting arm, and the connecting arm is fixedly connected with the inner wall of the tank body.
[0011] The fluorine refrigerant carries oil liquid into the tank body from the liquid supply pipe A, and the liquid sinks and the gas rises, the sinking liquid can be supplied to the evaporator, and the oil liquid carried by the liquid floats on the upper layer due to the different densities, and the liquid is located in the lower layer, so that the liquid can enter the liquid supply pipe B after reaching a certain height, and the oil liquid and the liquid have been stratified at this time, thereby reducing the amount of oil liquid flowing out of the liquid supply pipe B, and when the oil liquid in the upper layer reaches a certain amount, the float valve can be opened, and the oil liquid can flow out of the oil supply pipe to the crankshaft for recycling, thereby effectively realizing oil separation.
[0012] The refrigerant of the evaporator enters the tank body through the steam inlet pipe, and the water droplets sink under the action of gravity and the steam rises to return to the suction end of the host through the steam outlet pipe, thereby realizing gas-liquid separation and avoiding wet formation.
[0013] In summary, the fluorine special gas-liquid-oil separator can effectively improve the efficiency of gas-liquid-oil separation, reduce the possibility of gas carrying liquid droplets, and avoid the refrigerant carrying a large amount of oil liquid, thereby ensuring stable operation of the system. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the utility model;
[0015] Figure 2 It is a structural schematic view of the tank body in the utility model;
[0016] Figure 3 It is a structural schematic view of the utility model after oil stratification.
[0017] In the drawing: 100 tank body, 200 liquid supply pipe A, 201 bending part A, 300 liquid supply pipe B, 400 steam inlet pipe, 401 bending part B, 500 steam outlet pipe, 501 bending part C, 600 oil supply pipe, 601 float valve, 700 oil blocking cap, 701 liquid tank, 702 connecting arm. DETAILED DESCRIPTION
[0018] 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, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.
[0019] Please refer to Figure 1 The -3, Freon special vapor-liquid oil separator, including the tank body 100, the liquid supply pipe A 200, the liquid supply pipe B 300, the steam inlet pipe 400, the steam outlet pipe 500, the oil supply pipe 600 and the float ball valve 601, wherein, the middle part of tank body 100 is fixedly connected with the liquid supply pipe A 200, and the bottom end of tank body 100 is fixedly connected with the liquid supply pipe B 300, and the oil blocking cap 700 is fixedly connected between the liquid supply pipe A 200 and the liquid supply pipe B 300 in the tank body 100, specifically, the connecting arm 702 is fixedly connected on the oil blocking cap 700, and the connecting arm 702 is fixedly connected with the inner wall of the tank body 100, the oil blocking cap 700 is provided with the liquid groove 701, the top end of the liquid supply pipe B 300 is located in the liquid groove 701, the oil supply pipe 600 is fixedly connected between the oil blocking cap 700 and the liquid supply pipe A 200 on the tank body 100, the float ball valve 601 is arranged on the area of the oil supply pipe 600 in the tank body 100, the steam inlet pipe 400 is fixedly connected on the upper part of the liquid supply pipe A 200 on the tank body 100, and the steam outlet pipe 500 is fixedly connected on the upper part of the steam inlet pipe 400 on the tank body 100;
[0020] When the Freon refrigerant carrying oil liquid enters the inside of the tank body 100 from the liquid supply pipe A 200, the liquid sinks and the gas rises, the sinking liquid can be supplied to the evaporator as liquid supply, and the oil liquid carried by the liquid floats on the upper layer due to the different densities, while the liquid is located in the lower layer, the liquid can enter the liquid supply pipe B 300 only after reaching a certain height through the oil blocking cap 700 arranged, and at this time, the oil liquid and the liquid have been stratified, thereby reducing the amount of oil liquid flowing out from the liquid supply pipe B 300, and when the oil liquid in the upper layer reaches a certain amount, the float ball valve 601 can be opened, at this time, the oil liquid can flow out from the oil supply pipe 600 to the crankshaft for recycling, thereby effectively realizing oil separation;
[0021] And the refrigerant of the evaporator enters the inside of the tank body 100 through the steam inlet pipe 400, the water droplets sink under the action of gravity and the steam body rises to return to the suction end of the main machine through the steam outlet pipe 500, thereby realizing vapor-liquid separation and avoiding wet formation;
[0022] Further optimization, the liquid supply pipe A200 is provided with a bending portion A201 inside the tank body 100, the bending portion A201 is towards the inner wall of the tank body 100, so as to reduce the liquid directly impacting the bottom of the tank body 100, avoid liquid splashing and gas carrying liquid droplets, improve the separation efficiency;
[0023] Furthermore, the steam inlet pipe 400 is provided with a bending portion B401 inside the tank body 100, the bending portion B401 is downwards, so as to increase the rising distance of the steam, because the liquid droplets will naturally sink downwards due to gravity, and the gas flows upwards, the directions are opposite, the possibility of liquid being carried by the gas is reduced, so that the water droplets in the steam can fully sink;
[0024] In addition, the steam outlet pipe 500 is provided with a bending portion C501 inside the tank body 100, the bending portion C501 is upwards, so as to continue to increase the rising distance of the steam, further make the water droplets in the steam fully sink.
[0025] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, 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.
[0026] In addition, it should be understood that although the present application is described in the specification according to the embodiments, not every embodiment contains only one independent technical scheme, the description manner of the specification is only for the sake of clarity, the skilled in the art should regard the specification as a whole, the technical scheme in each embodiment can also be properly combined to form other embodiments which can be understood by the skilled in the art.
Claims
1. A Freon-specific vapor-liquid-oil separator, comprising a tank (100), a liquid supply pipe A (200), a liquid supply pipe B (300), a steam inlet pipe (400), a steam outlet pipe (500), an oil supply pipe (600), and a float valve (601), characterized in that: The liquid supply pipe A (200) is fixedly connected to the middle of the tank body (100), and the liquid supply pipe B (300) is fixedly connected to the bottom end of the tank body (100). An oil baffle cap (700) is fixedly connected inside the tank body (100) between the liquid supply pipe A (200) and the liquid supply pipe B (300). The oil baffle cap (700) is provided with a liquid groove (701). The top end of the liquid supply pipe B (300) is located in the liquid groove (701). An oil supply pipe (600) is fixedly connected between the oil baffle cap (700) and the liquid supply pipe A (200). The oil supply pipe (600) is provided with a float valve (601) in the area inside the tank body (100). The steam inlet pipe (400) is fixedly connected to the upper part of the liquid supply pipe A (200) on the tank body (100). The steam outlet pipe (500) is fixedly connected to the upper part of the steam inlet pipe (400) on the tank body (100).
2. The Freon-specific vapor-liquid-oil separator according to claim 1, characterized in that: The liquid supply pipe A (200) is located inside the tank (100) and has a bend A (201) facing the inner wall of the tank (100).
3. The Freon-specific vapor-liquid-oil separator according to claim 1, characterized in that: The steam inlet pipe (400) is located inside the tank body (100) and has a bend B (401) with the bend B (401) facing downward.
4. The Freon-specific vapor-liquid-oil separator according to claim 1, characterized in that: The steam outlet pipe (500) is located inside the tank body (100) and has a bend C (501) with the bend C (501) facing upward.
5. The Freon-specific vapor-liquid-oil separator according to claim 1, characterized in that: A connecting arm (702) is fixedly connected to the oil baffle cap (700), and the connecting arm (702) is fixedly connected to the inner wall of the tank body (100).