Hydrogen-oil separator

Abstract

A hydrogen-oil separator comprises a separation tank and a hydrogen discharge pipe penetrating through the top end of the separation tank, the outer side wall of the hydrogen discharge pipe in the separation tank is covered with a conical flow guide cover, the top of the flow guide cover is provided with an annular gas distribution outlet with a downward opening, and one side of the annular gas distribution outlet is communicated with a gas inlet pipe extending out of the separation tank. An oil discharge valve is arranged at the bottom of the separation tank; and a plurality of spiral blades extending from the top to the bottom are arranged on the outer side wall of the flow guide cover. When high-pressure hydrogen discharged from the compressor is separated, the hydrogen is discharged through the gas distribution annular outlet, passes through the flow guide cover and the spiral blade, flows spirally along the spiral blade, and separates lubricating oil from the hydrogen by virtue of centrifugal force and gravity, so that the lubricating oil can automatically return to a crankcase of the compressor, and the lubricating oil is prevented from being damaged. Normal oil use of the compressor is guaranteed, cyclic utilization of lubricating oil is achieved, oil-gas separation is more thorough, cleanliness of separated hydrogen can be guaranteed, and follow-up utilization is facilitated.

Description

Technical Field

[0001] The utility model relates to a separation device, in particular to a hydrogen oil separator. Background Art

[0002] The high-pressure hydrogen coming out of the compressor contains a small amount of lubricating oil, which needs to be separated so that it can flow back into the crankcase of the compressor to ensure the normal oil use of the compressor and achieve the recycling of the lubricating oil. However, the current separation equipment does not separate thoroughly, which can easily lead to the waste of some lubricating oil. In the long run, this will cause an increase in production costs. In addition, the lubricating oil that is difficult to separate from the hydrogen will also affect the subsequent use of the hydrogen. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a hydrogen oil separator.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a hydrogen-oil separator, comprising a separation tank and a hydrogen discharge pipe running through the top of the separation tank, the outer wall of the hydrogen discharge pipe in the separation tank is covered with a conical guide cover, the top of the guide cover is provided with an air distribution annular outlet opening facing downward, one side of the air distribution annular outlet is connected to an air inlet pipe extending to the outside of the separation tank, and an oil drain valve is provided at the bottom of the separation tank.

[0005] Furthermore, the outer side wall of the air guide cover is provided with a plurality of spiral blades extending from the top to the bottom.

[0006] Furthermore, a liquid level gauge is provided on the side wall of the separation tank.

[0007] Furthermore, a safety pressure relief valve is also provided on the top side wall of the separation tank.

[0008] Furthermore, a downwardly protruding sealing head is provided at the bottom of the separation tank, and the center of the bottom of the sealing head is connected to the oil drain valve.

[0009] Furthermore, it also includes a cooling device, which includes a cooling tank and a plurality of vertical heat exchange tubes in the cooling tank. The heat exchange tubes connect the upper and lower hydrogen cavities of the cooling tank. A heat exchange cavity is provided between the two hydrogen cavities. A hydrogen inlet is provided at the top of the cooling tank, and a hydrogen outlet is provided at one side of the bottom. A cooling water inlet and a cooling water outlet connected to an external circulation pipeline are respectively provided on the top and bottom side walls of the heat exchange cavity, and the hydrogen outlet is connected to the air inlet pipe.

[0010] Furthermore, a plurality of horizontal partitions are arranged in the heat exchange chamber, and adjacent partitions are arranged opposite to each other, so that a circuitous S-shaped channel is formed in the heat exchange chamber.

[0011] Furthermore, bases are respectively provided at the bottom of the separation tank and the cooling tank.

[0012] When the utility model separates the high-pressure hydrogen from the compressor, the high-pressure hydrogen from the compressor enters the oil separator after being cooled by the cooling device, and then enters the separation tank. The hydrogen is discharged through the air distribution annular outlet, passes through the guide cover and the spiral blades, and flows in a spiral shape along the spiral blades. The lubricating oil is separated from the hydrogen by centrifugal force and gravity, and flows down along the inner wall of the separation tank. A porous baffle can be arranged at the lower end of the hydrogen discharge pipe, and the hydrogen is led out of the oil separator through the hydrogen discharge pipe. The separated lubricating oil is concentrated in the head at the bottom of the separation tank and can be discharged regularly, so that the lubricating oil is automatically returned to the crankcase of the compressor, thereby ensuring the normal oil use of the compressor and realizing the recyclable utilization of the lubricating oil. Not only is the oil and gas separation more thorough, but also the cleanliness of the hydrogen after separation can be ensured, which is convenient for subsequent utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is now further described with reference to the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the separation tank of the utility model. DETAILED DESCRIPTION

[0016] like Figure 1-2 As shown, a hydrogen-oil separator comprises a separation tank 1 and a hydrogen discharge pipe 2 penetrating the top of the separation tank 1, the outer wall of the hydrogen discharge pipe 2 in the separation tank 1 is covered with a conical flow guide cover 3, the top of the flow guide cover 3 is provided with an air distribution annular outlet 4 opening downward, one side of the air distribution annular outlet 4 is connected with an air inlet pipe 5 extending to the outside of the separation tank 1, and the bottom of the separation tank 1 is provided with an oil drain valve 6.

[0017] Specifically: the outer wall of the deflector 3 is provided with a plurality of spiral blades 7 extending from the top to the bottom, the side wall of the separation tank 1 is provided with a liquid level gauge 8, the top side wall of the separation tank 1 is also provided with a safety pressure relief valve 9, and the bottom of the separation tank 1 is provided with a downwardly protruding head 10, and the bottom center of the head 10 is connected to the oil drain valve 6.

[0018] It also includes a cooling device, which includes a cooling tank 11 and a plurality of vertical heat exchange tubes 12 in the cooling tank 11. The heat exchange tubes 12 connect the upper and lower hydrogen cavities 13 of the cooling tank 11. A heat exchange cavity 14 is provided between the two hydrogen cavities 13. A hydrogen inlet 15 is provided at the top of the cooling tank 11, and a hydrogen outlet 16 is provided on one side of the bottom. A cooling water inlet 17 and a cooling water outlet 18 connected to an external circulation pipeline are respectively provided on the top and bottom side walls of the heat exchange cavity 14. The hydrogen outlet 16 is connected to the air inlet pipe 5.

[0019] A plurality of horizontal partitions 19 are arranged in the heat exchange chamber 14 , and adjacent partitions 19 are arranged opposite to each other, so that a circuitous S-shaped channel is formed in the heat exchange chamber 14 . Bases 20 are respectively arranged at the bottom of the separation tank 1 and the cooling tank 11 .

[0020] Working principle of the utility model: high-pressure hydrogen coming out of the compressor is cooled by the cooling device, and the cooling water inlet 17 and the cooling water outlet 18 are used to enter cold water and discharge water to form a cycle. After the hydrogen passes through the heat exchange tube 12 in the heat exchange chamber 14 and is cooled, it enters the oil separator and enters the separation tank 1. The hydrogen is discharged through the air distribution annular outlet 4, passes through the guide cover 3 and the spiral blade 7, and flows in a spiral shape along the spiral blade 7. The lubricating oil is separated from the hydrogen by centrifugal force and gravity, and flows down along the inner wall of the separation tank 1. A porous baffle can be set at the lower end of the hydrogen discharge pipe 2. The hydrogen is led out of the oil separator through the hydrogen discharge pipe 2. The separated lubricating oil is concentrated in the head 10 at the bottom of the separation tank 1 and can be discharged regularly, so that the lubricating oil can automatically return to the crankcase of the compressor.

[0021] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A hydrogen oil separator, comprising a separation tank (1) and a hydrogen discharge pipe (2) penetrating the top of the separation tank (1), characterized in that: The outer wall of the hydrogen gas discharge pipe (2) in the separation tank (1) is covered with a conical flow guide cover (3), the top of the flow guide cover (3) is provided with a gas distribution annular outlet (4) with an opening facing downward, one side of the gas distribution annular outlet (4) is connected to an air inlet pipe (5) extending to the outside of the separation tank (1), and the bottom of the separation tank (1) is provided with an oil discharge valve (6).

2. A hydrogen oil separator as claimed in claim 1, characterized in that: The outer side wall of the air guide cover (3) is provided with a plurality of spiral blades (7) extending from the top to the bottom.

3. A hydrogen oil separator as claimed in claim 1, characterized in that: A liquid level gauge (8) is provided on the side wall of the separation tank (1).

4. A hydrogen oil separator as claimed in claim 1, characterized in that: A safety pressure relief valve (9) is also provided on the top side wall of the separation tank (1).

5. A hydrogen oil separator as claimed in claim 1, characterized in that: A downwardly protruding sealing head (10) is provided at the bottom of the separation tank (1), and the bottom center of the sealing head (10) is connected to the oil drain valve (6).

6. A hydrogen oil separator as claimed in claim 1, characterized in that: The cooling device also includes a cooling device, which includes a cooling tank (11) and a plurality of vertical heat exchange tubes (12) in the cooling tank (11). The heat exchange tubes (12) connect the upper and lower hydrogen cavities (13) of the cooling tank (11). A heat exchange cavity (14) is provided between the two hydrogen cavities (13). A hydrogen inlet (15) is provided at the top of the cooling tank (11), and a hydrogen outlet (16) is provided at one side of the bottom. A cooling water inlet (17) and a cooling water outlet (18) connected to an external circulation pipeline are provided on the top and bottom side walls of the heat exchange cavity (14), respectively. The hydrogen outlet (16) is connected to the air inlet pipe (5).

7. A hydrogen oil separator as claimed in claim 6, characterized in that: A plurality of horizontal partitions (19) are arranged in the heat exchange chamber (14), and adjacent partitions (19) are arranged opposite to each other, so that a circuitous S-shaped channel is formed in the heat exchange chamber (14).

8. A hydrogen oil separator as claimed in claim 6, characterized in that: Bases (20) are respectively provided at the bottom of the separation tank (1) and the cooling tank (11).

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