CN217829414U - Oil removing device for hydrogen transmission and distribution system - Google Patents

Abstract

The utility model relates to the technical field of gas filtration, in particular to an oil removal device for a hydrogen gas transmission and distribution system, which is provided with a shell, wherein the shell is provided with an air inlet and an air outlet; the interior of the shell is divided into an upper cavity and a lower cavity, a coalescence filter element is arranged in the upper cavity, and a cyclone tube is arranged in the lower cavity; the air inlet is arranged below the cyclone tube, and the air outlet is arranged at the upper cavity shell; a safety valve interface and a pressure gauge interface are arranged on one side of the outer wall of the shell of the upper cavity; a first liquid level meter interface, a second liquid level meter interface and an upper cavity drain valve interface are arranged on the other side of the outer wall of the upper cavity shell; a third liquid level meter interface and a fourth liquid level meter interface are arranged on one side of the outer wall of the lower cavity of the shell; the bottom of the shell is provided with an oil drain port. The device adopts simple structure's filter component on system configuration and the selection of separating internals, sets up multistage filtration, makes the filter effect show, and hydrogen purity improves, realizes oil mist separation among the hydrogen transportation process.

Description

Oil removing device for hydrogen transmission and distribution system

Technical Field

The utility model relates to a gas filtration technical field especially relates to a deoiling device for hydrogen transmission and distribution system.

Background

The hydrogen energy is taken as a zero-carbon high-efficiency new energy, the application value in the world energy transformation is increasingly prominent, and the hydrogen energy is known as one of the most promising energy sources in the twenty-first century. The hydrogen transportation is a link and a bridge of a hydrogen energy industrial chain and is vital to the continuous development of the whole hydrogen energy industrial chain. The pipeline hydrogen transportation is an important economic way for realizing large-scale and long-distance transportation of hydrogen, generally adopts high-pressure gaseous transportation, and refers to a technical scheme that a hydrogen compressor is adopted to compress the hydrogen to a high requirement and a high density at normal temperature, and a sealed container or a pipeline is adopted to transport the hydrogen to a destination and then regulate the pressure. The hydrogen conveying system relates to a component which comprises a pressurization system (mostly hydraulic compressors), a hydrogen storage tank and a hydrogen conveying pipeline. The supercharging system comprises a cylinder lubricating system, a cooling system, a motor and the like. Lubricating oil can cause pollution to hydrogen in the pressurizing process of a pressurizing system, so that oil mist is entrained in the hydrogen, potential safety hazards are brought to a hydrogen conveying system, and the device which can be applied to hydrogen filtering and oil removing of a hydrogen transmission and distribution system is needed to improve the purity of the hydrogen and reduce the potential safety hazards.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an deoiling device for hydrogen gas transmission and distribution system aims at improving separation filtration efficiency, reduces the oil mist impurity content in the defeated hydrogen of pipe, and the technical scheme of its adoption is:

an oil removing device for a hydrogen gas transmission and distribution system is provided with a shell, wherein an air inlet and an air outlet are formed in the shell; the interior of the shell is divided into an upper cavity and a lower cavity, a coalescence filter element is arranged in the upper cavity, and a cyclone tube is arranged in the lower cavity; the air inlet is arranged below the cyclone tube, and the air outlet is arranged on the outer wall of the shell of the upper cavity; a safety valve interface and a pressure gauge interface are arranged on one side of the outer wall of the shell of the upper cavity; a first liquid level meter interface, a second liquid level meter interface and an upper cavity drain valve interface are arranged on the other side of the outer wall of the shell of the upper cavity; the upper cavity blowdown valve interface is arranged below the first liquid level meter interface and the second liquid level meter interface; a third liquid level meter interface and a fourth liquid level meter interface are arranged on one side of the outer wall of the shell of the lower cavity; the bottom of the shell is provided with an oil drain port.

Further, an air outlet channel is arranged on one side wall in the upper cavity, the height of an air inlet above the air outlet channel is not higher than that of the upper end of the coalescence filter element, and an air outlet is formed in the bottom of the air outlet channel.

Furthermore, a first differential pressure transmitter interface is arranged on one side of the outer wall of the shell of the upper cavity; and a second differential pressure transmitter interface is arranged on one side of the outer wall of the shell of the lower cavity.

Further, the oil-water separator further comprises a sewage discharge tank, the sewage discharge tank is connected with an oil discharge port at the bottom of the shell, a sewage discharge port of the sewage discharge tank is formed in the bottom of the sewage discharge tank, and a first liquid level meter interface and a second liquid level meter interface of the sewage discharge tank are arranged on the tank body of the sewage discharge tank.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an oil removing device for a hydrogen transmission and distribution system, which adopts a filtering component with simple structure on the selection of system configuration and separation internal parts and sets multi-stage filtration, thereby leading the filtering effect to be more obvious and improving the purity of hydrogen; make hydrogen carry for low reaches gas appliances under the high purity, realize the oil mist separation among the hydrogen transportation process to the oil mist impurity of filtering out still can arrange to blowdown jar and temporarily store, and periodic centralized processing is favorable to environmental protection, has apparent practicality and economic meaning.

Drawings

FIG. 1 is a schematic view of the present invention;

in the figure: 1. a housing; 2. a coalescing filter element; 3. a cyclone tube; 4. an air inlet; 5. an air outlet; 6. a safety valve interface; 7. a pressure gauge interface; 8. an upper cavity blowdown valve interface; 9. a first differential pressure transmitter interface; 10. a second differential pressure transmitter interface; 11. a first level meter interface; 12. a second level gauge interface; 13. a third level gauge interface; 14. a fourth level gauge interface; 15. a blowdown tank; 16. a drain outlet of the sewage draining tank; 17. a first liquid level meter interface of the blowdown tank; 18. a second liquid level meter interface of the blowdown tank; 19. and an air outlet channel.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the oil removing device for a hydrogen gas transmission and distribution system disclosed by the present invention comprises a housing 1, an air inlet 4 is arranged on one side of the housing 1, the air inlet 4 is connected with a gas outlet of a compressor in a pressurization system, and an air outlet 5 is arranged on the other side of the housing 1; the interior of the shell 1 is divided into an upper cavity and a lower cavity, a coalescence filter element 2 is arranged in the upper cavity, and the coalescence filter element 2 is made of porous filter materials and is optimally made of high-density gradient glass fibers; a cyclone tube 3 is arranged in the lower cavity body, and the cyclone tube 3 is preferably a stainless steel cyclone tube; the air inlet 4 is arranged below the cyclone tube 3, and the air outlet 5 is arranged on the outer wall of the shell of the upper cavity; a safety valve interface 6 and a pressure gauge interface 7 are also arranged on one side of the outer wall of the shell 1 of the upper cavity of the shell 1 and are respectively used for connecting a safety valve and a pressure gauge; a first liquid level meter interface 11, a second liquid level meter interface 12 and an upper cavity blow-down valve interface 8 are arranged on the other side of the outer wall of the shell 1 of the upper cavity and are respectively used for connecting a first liquid level meter and a blow-down valve; the upper cavity blowdown valve interface 8 is arranged below the first liquid level meter interface 11 and the second liquid level meter interface 12; a third liquid level meter interface 13 and a fourth liquid level meter interface 14 are arranged on one side of the outer wall of the shell 1 of the lower cavity and used for connecting a second liquid level meter; the bottom of the shell 1 is provided with an oil drain port.

Preferably, in order to make hydrogen gas discharge the device for transportation and distribution more rapidly, an air outlet channel 19 is arranged on one side wall in the upper cavity, the height of the air inlet above the air outlet channel 19 is not higher than the height of the upper end of the coalescing filter element 2, and the air outlet 5 is arranged at the bottom of the air outlet channel 19.

Preferably, when the oil removing device disclosed by the present invention increases the gas treatment capacity and prolongs the service life, the oil drops deposited on the surface of the coalescing filter element 2 will cause the increase of the pressure difference of the oil removing device, therefore, the first pressure difference transmitter interface 9 is arranged on one side of the outer wall of the housing 1 of the upper cavity; and a second differential pressure transmitter interface 10 is arranged on one side of the outer wall of the shell 1 of the lower cavity, when the first differential pressure transmitter connected to the first differential pressure transmitter interface 9 and the second differential pressure transmitter connected to the second differential pressure transmitter interface 10 detect that the differential pressure reaches a certain value, the differential pressure is usually greater than 0.55psig, which indicates that the coalescing filter element 2 is blocked, and the coalescing filter element 2 should be replaced in time in order to achieve a good filtering effect.

Preferably, in order to can the centralized processing oil mist impurity, the utility model discloses still be provided with blowdown jar 15, blowdown jar 15 is connected with 1 bottom oil drain port of casing, sets up blowdown jar drain 16 in blowdown jar 15 bottom, still is provided with first level gauge interface 17 of blowdown jar and blowdown jar second level gauge interface 18 on 15 jar bodies of blowdown jar for connect the blowdown jar level gauge.

During actual operation, the hydrogen that comes out from the compressor smugglies secretly oil mist big or small and enters into the utility model discloses an among the deoiling device. Firstly, oil drops are moved to the periphery of the cyclone pipe 3 by the centrifugal action generated by high-speed rotation through the channel of the first-stage stainless steel cyclone pipe 3 and are dropped into the bottom of the shell 1 under the action of self gravity, and when hydrogen subjected to primary cyclone separation flows through the coalescing filter element 2, the oil drops with the diameter larger than the aperture of the filter material are filtered out on the surface of the coalescing filter element 2. Then, by changing the shape and size of the internal flow passage of the filtering material, oil drops with small diameters entering the filtering material can be coalesced into oil drops with large diameters on fibers of the material under the action of inertia force and the like, the oil drops with large diameters are settled to the bottom of the shell 1 under the action of gravity, and oil mist impurities filtered out at the moment are discharged to a sewage tank 15 through an oil outlet at the bottom of the shell 1 for temporary storage and are treated periodically in a centralized way, so that the environment protection is facilitated. Therefore, the high-purity hydrogen is filtered out and is discharged through the gas outlet 5, and the content of oil mist impurities in the pipe-conveyed hydrogen is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a deoiling device for hydrogen transportation and distribution system which characterized in that: the device is provided with a shell (1), wherein an air inlet (4) and an air outlet (5) are arranged on the shell (1); the interior of the shell (1) is divided into an upper cavity and a lower cavity, a coalescence filter element (2) is arranged in the upper cavity, and a cyclone tube (3) is arranged in the lower cavity; the air inlet (4) is arranged below the cyclone tube (3), and the air outlet (5) is arranged on the outer wall of the shell (1) of the upper cavity; a safety valve interface (6) and a pressure gauge interface (7) are arranged on one side of the outer wall of the shell (1) of the upper cavity; a first liquid level meter interface (11), a second liquid level meter interface (12) and an upper cavity blow-down valve interface (8) are arranged on the other side of the outer wall of the shell (1) of the upper cavity; the upper cavity blowdown valve interface (8) is arranged below the first liquid level meter interface (11) and the second liquid level meter interface (12); a third liquid level meter interface (13) and a fourth liquid level meter interface (14) are arranged on one side of the outer wall of the shell (1) of the lower cavity; the bottom of the shell (1) is provided with an oil drain port.

2. The oil removal device for a hydrogen gas delivery and distribution system according to claim 1, wherein: be equipped with air outlet channel (19) on the internal lateral wall of epicoele, air inlet height is not higher than coalescence filter core (2) upper end height above air outlet channel (19), gas outlet (5) set up in air outlet channel (19) bottom.

3. The oil removal device for a hydrogen gas transmission and distribution system according to claim 1, wherein: a first differential pressure transmitter interface (9) is arranged on one side of the outer wall of the shell (1) of the upper cavity; and a second differential pressure transmitter interface (10) is arranged on one side of the outer wall of the shell (1) of the lower cavity.

4. The oil removal device for a hydrogen gas delivery and distribution system according to claim 1, wherein: still include blowdown jar (15), blowdown jar (15) are connected with casing (1) bottom oil drain, blowdown jar (15) bottom has blowdown jar drain (16), be provided with first level gauge interface of blowdown jar (17) and blowdown jar second level gauge interface (18) on the blowdown jar (15) jar body.

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