Oil-gas separator self-adaptive to rotational flow initial velocity

Abstract

The utility model discloses an oil-gas separator with self-adaptive rotational flow initial velocity, which comprises a cylinder body, an air inlet mechanism connected with an exhaust port of a compressor, an air outlet connected with a refrigerating system and an oil outlet connected with the compressor are arranged on the cylinder body, an oil blocking net is arranged in the cylinder body, a self-adaptive valve is further arranged on the air inlet mechanism, and the self-adaptive valve is connected with the air outlet of the compressor. And the self-adaptive valve is connected with a self-adaptive valve regulator. The gas inlet speed of oil-gas mixed fluid is adjusted, so that the rotational flow speed is stable, especially when a compressor is unloaded, the rotational flow speed is not affected, and the oil-gas separation effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil -gas separator technical field especially relates to an oil -gas separator of self -adaptation cyclone initial velocity. BACKGROUND

[0002] At present, central air conditioning refrigeration unit has marketization and is widely used in large factory, shopping mall, cold storage, school, hospital, medicine and so on, the compressor will discharge high temperature, high pressure gas containing a large amount of lubricating oil from the side of exhaust port in the working process, these lubricating oils enter the refrigeration system with gas, which can cause the whole refrigeration system to be low in efficiency and increase in energy consumption, and the compressor needs to use lubricating oil for lubrication in normal operation, the oil -gas separator is commonly used in the prior art to separate the discharged oil -gas and then return to the compressor for lubrication and cooling. The cyclone oil -gas separator used in the prior art utilizes the gas flow discharged by the compressor as kinetic energy to form a cyclone, thereby realizing oil -gas separation, but the working condition of the compressor changes constantly with the use environment and use condition when the refrigeration system is in use, thereby causing the cyclone kinetic energy to change, especially when the refrigeration system is unloaded, the compressor gas flow is greatly reduced, the inlet speed of the oil -gas separator is rapidly reduced, thereby causing the internal cyclone to fail to be established, and the effect of cyclone separation cannot be realized, the separation efficiency is low, and in severe cases, the compressor can be burned due to lack of oil. SUMMARY

[0003] The utility model discloses an oil -gas separator of self -adaptation cyclone initial velocity provides a kind of oil -gas separator of self -adaptation cyclone initial velocity, to solve the inlet speed of cyclone oil -gas separator in prior art changes constantly, it is easy to cause the oil amount of separation to reduce, affect the problems such as the work of compressor.

[0004] According to one aspect of the embodiment of the utility model, an oil -gas separator of self -adaptation cyclone initial velocity is provided, comprising: a cylinder body, the cylinder body is provided with an inlet mechanism connected with the exhaust port of compressor, an outlet connected with refrigeration system and an oil outlet connected with compressor, the cylinder body is provided with an oil blocking net inside, the inlet mechanism is further provided with self -adaptation valve, and the self -adaptation valve is connected with self -adaptation valve regulator.

[0005] Further, the self -adaptation valve is a flow control valve.

[0006] Further, the inlet mechanism includes exhaust interface flange connected with the exhaust port of compressor, oil -gas mixing pipe connected with the exhaust interface flange and cylinder body, and the self -adaptation valve is arranged in the oil -gas mixing pipe.

[0007] Further, the end of the oil -gas mixing pipe connected with the cylinder body is chamfered, and the chamfered angle is 30-60 °.

[0008] Further, the opening direction of the self -adaptation valve is consistent with the direction of the chamfered surface of the oil -gas mixing pipe.

[0009] Further, the cylinder body is internally provided with an oil blocking net, the oil blocking net is fixed in the middle part of the cylinder body through an oil blocking net support, and the bottom of the oil blocking net is provided with a bottom hole plate.

[0010] Further, the lower part of the cylinder body is provided with a filter, and the filter is a perforated plate.

[0011] Further, the bottom of the cylinder body is provided with an oil outlet, and the top of the cylinder body is provided with an air outlet.

[0012] Further, the oil blocking net is a metal net.

[0013] The beneficial effects of the embodiment of the utility model are: the utility model increases the self-adaptive valve, so that the speed of the oil-gas mixed fluid in the oil-gas mixing pipe is kept stable when entering the cylinder body, the exhaust capacity change caused by the change of the use environment of the compressor does not affect the cyclone, thereby affecting the oil-gas separation. The utility model adjusts the inlet speed of the oil-gas mixed fluid, so that the cyclone speed is stable, especially when the compressor is unloaded, the cyclone speed does not have an impact, the oil-gas separation effect is guaranteed, the lubricating oil is prevented from entering the refrigeration system to affect the refrigeration efficiency, the safe operation of the refrigeration system is ensured, the filtered lubricating oil amount is stable, and the work of the compressor is ensured.

[0014] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the specific implementation mode of the utility model is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the scope of the present application. Moreover, the same reference numerals in different figures represent the same or similar components. In the drawings:

[0016] Figure 1 It is a structure diagram of the oil-gas separator of the utility model of self-adaptive cyclone initial speed.

[0017] Figure 2 It is a top view of the oil-gas separator of the utility model of self-adaptive cyclone initial speed.

[0018] Figure 3 It is a gas flow direction diagram of the cyclone of the oil-gas separator of the utility model of self-adaptive cyclone initial speed.

[0019] In the figure: 1 is an oil blocking net support, 2 is a cylinder body, 3 is an air outlet, 4 is a self-adaptive valve regulator, 5 is a self-adaptive valve, 6 is an oil-gas mixing pipe, 7 is an exhaust flange, 8 is an oil blocking net, 9 is a bottom hole plate, 10 is a partition hole plate, 11 is an oil outlet, and 12 is a supporting base. DETAILED DESCRIPTION

[0020] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0021] In the description of the present utility model, it should be understood that the terms "middle", "lower", "bottom", "interior", "upward", "downward", and the like indicate the orientation or positional relationship based on the orientation or positional relationship during use, and are merely for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the scope of protection of the present utility model.

[0022] The utility model provides a kind of oil-gas separator of self-adaptive rotational flow initial velocity, comprising: cylinder body 2, cylinder body 2 is provided with the air intake mechanism of connecting compressor exhaust, connecting refrigeration system's air outlet 3 and connecting compressor's oil outlet 11, cylinder body 2 is provided with oil blocking net 8 in inside, air intake mechanism is also provided with self-adaptive valve 5, self-adaptive valve 5 is connected with self-adaptive valve regulator 4.Self-adaptive valve regulator 4 is used to adjust the flow of oil-gas mixed fluid that passes through self-adaptive valve 5, is set according to the exhaust capacity of compressor before use, is adjusted according to the flow and change of compressor exhaust gas when using, so that the gas flow and speed that pass remain stable.Gas that enters cylinder body 2 forms stable rotational flow and rotates in the inside of cylinder body 2, and contact with the inner wall of cylinder body 2 makes lubricating oil adhere to the inner wall, and flows out to oil outlet 11 under the gravity of lubricating oil.Some oil not adhered by rotational flow is adsorbed by oil blocking net 8 when contacting with oil blocking net 8, and flows out to oil outlet 11 under gravity, and separated gas flows from air outlet 3 to refrigeration system, to realize oil-gas separation.

[0023] To ensure that the gas flowing into cylinder body 2 forms stable rotational flow in cylinder body 2, the self-adaptive valve is a flow control valve.

[0024] The air inlet mechanism comprises an exhaust interface flange 7 connected with the compressor exhaust port, an oil-gas mixing pipe 6 connecting the exhaust interface flange 7 and the cylinder body 2, and a self-adaptive valve 5 arranged in the oil-gas mixing pipe 6. The end of the oil-gas mixing pipe 6 connected with the cylinder body 2 is a bevel surface, and the angle of the bevel surface is 30-60°. In order to guarantee that the kinetic energy of the gas at the compressor exhaust port forms a stable spiral flow in the cylinder body 2 and realizes oil-gas separation, the end of the oil-gas mixing pipe 6 is designed as a bevel surface, and the bevel surface is tangent to the inner wall at the air inlet of the cylinder body 2, so that the oil-gas mixture forms a spiral flow along the inner wall.

[0025] In order to guarantee the spiral flow speed of the fluid in the cylinder body 2, the opening direction of the self-adaptive valve 5 is consistent with the direction of the bevel surface of the oil-gas mixing pipe 6.

[0026] In order to guarantee that the lubricating oil not entering the spiral flow is separated and avoid the lubricating oil entering the refrigeration system with the gas, an oil blocking net is arranged in the cylinder body 2. The oil blocking net 8 is fixed in the middle of the cylinder body 2 through an oil blocking net support 1, and a bottom hole plate 9 is arranged at the bottom of the oil blocking net 8. The mesh-shaped oil blocking net 8 increases the contact area of the oil-gas mixed fluid, so that the lubricating oil not entering the spiral flow is adsorbed on the wall of the oil blocking net 8 when contacting the oil blocking net 8, and the oil-gas separation efficiency is increased. The bottom hole plate 9 is equivalent to a filter plate, and the lubricating oil on the oil blocking net 8 flows out from the oil outlet 11 after passing through the bottom hole plate 9. In order to increase the contact of the oil-gas mixed fluid with the oil blocking net 8, the oil blocking net is in a cylindrical shape, and the bottom hole plate 9 is arranged at the bottom of the oil blocking net.

[0027] A filter is arranged at the lower part of the cylinder body 2, and the filter is a perforated plate 10. The filter filters the lubricating oil before entering the compressor.

[0028] An oil outlet 11 is arranged at the bottom of the cylinder body 2.

[0029] In a preferred embodiment, the oil blocking net 8 is a metal net.

[0030] In a preferred embodiment, in order to enable the oil-gas separator to be placed independently and safely, a supporting base 12 is further arranged at the bottom of the oil separator.

[0031] The working principle of the oil-gas separator with self-adaptive cyclone initial speed is as follows: before use, the self-adaptive valve regulator 4 is adjusted according to the working condition of the connected compressor, so that the flow rate and flow of the self-adaptive valve 5 are set. During work, the oil-gas mixed fluid discharged by the compressor enters the oil-gas mixing pipe 6, flows into the cylinder through the self-adaptive valve 5, the end of the oil-gas mixing pipe 6 is chamfered, so as to guide the oil-gas mixed fluid to flow into the cylinder 2 tangentially at a certain speed, and the oil-gas mixed fluid makes downward circumferential spiral motion along the inner wall in the cylinder 2, under the action of centrifugal force, the oil droplets with large density contact the inner wall under the action of cyclone and are adsorbed on the inner wall, and flow downward along the inner wall under the action of gravity. Another part of the oil droplets with small density do not enter the cyclone, and are adsorbed on the oil blocking net 8 after contacting the oil blocking net 8 in the cylinder 2, the collected oil droplets drop onto the partition hole plate 10 under the action of gravity. The oil of the partition hole plate 10 passes through the partition hole plate 10 and returns to the compressor from the oil outlet 11, the separated gas moves upward and is discharged to the refrigeration system through the gas outlet 3, so that the oil-gas separation is realized.

[0032] The above-mentioned embodiment serial numbers of the utility model are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0033] The embodiments of the utility model are described above in combination with the drawings, but the utility model is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, rather than limiting, and the person skilled in the art can make many forms under the inspiration of the utility model without departing from the purpose of the utility model and the scope protected by the claims, and these all belong to the protection of the utility model.

Claims

1. An oil-gas separator with adaptive swirl initial velocity, characterized in that: It includes: a cylinder body, on which is provided an air intake mechanism connected to the exhaust port of the compressor, an air outlet connected to the refrigeration system and an oil outlet connected to the compressor; an oil-blocking net is provided inside the cylinder body; an adaptive valve is also provided on the air intake mechanism, and the adaptive valve is connected to an adaptive valve regulator.

2. The oil-gas separator with adaptive swirl initial velocity according to claim 1, characterized in that: The adaptive valve is a flow control valve.

3. The oil-gas separator with adaptive swirl initial velocity according to claim 1, characterized in that: The air intake mechanism includes an exhaust interface flange connected to the compressor exhaust port, and an oil-gas mixing pipe connecting the exhaust interface flange and the cylinder body, and the adaptive valve is arranged in the oil-gas mixing pipe.

4. The oil-gas separator with adaptive swirl initial velocity according to claim 3, characterized in that: The end of the oil-gas mixing pipe connected to the cylinder body is a beveled surface, and the angle of the beveled surface is 30 to 60 degrees.

5. The oil-gas separator with adaptive swirl initial velocity according to claim 1, characterized in that: The oil-blocking net is fixed to the middle of the cylinder body through an oil-blocking net bracket, and a bottom hole plate is provided at the bottom of the oil-blocking net.

6. The oil-gas separator with adaptive swirl initial velocity according to claim 1, characterized in that: The bottom of the cylinder body is provided with an oil outlet, and the top of the cylinder body is provided with an air outlet.

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