CN212309094U

CN212309094U - Water separator for vehicle and ship fuel cell engine

Info

Publication number: CN212309094U
Application number: CN202020755680.9U
Authority: CN
Inventors: 吴鹏飞; 卢凯发; 孙成; 刘捷; 谢小进
Original assignee: Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Current assignee: Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-01-08
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses a water separator for a vehicle and ship fuel cell engine, which comprises a gas-water separation unit and an automatic drainage unit, wherein the gas-water separation unit comprises a vortex separator, a water baffle, a water stabilizing plate, an air duct and a shell, and the automatic drainage unit comprises a liquid level switch and a drainage valve; the utility model discloses a return the design of shape steady water board, reduced operating mode such as car/ship acceleration and deceleration, turn, emergency braking effectively and arouse the probability that the water knockout drum mistake liquid level signal produced to avoid the solenoid valve frequently to open and gas leakage's risk, adopt the breakwater to follow outward and paste shells inner wall and leave water guiding hole design and spiral air duct, improve the water knockout drum's efficiency of dividing effectively, thereby reduce the risk that circulating pump consumption and life-span reduced. Furthermore, the utility model has the advantages of the technique degree of difficulty is low, safe and reliable and economic benefits are good.

Description

Water separator for vehicle and ship fuel cell engine

Technical Field

The utility model belongs to the technical field of fuel cell, concretely relates to a novel water knockout drum for car/ship fuel cell engine.

Background

Compared with the traditional power device, the fuel cell engine has the advantages of high energy conversion efficiency, low vibration noise, zero emission, no pollution and the like, is ideal power equipment for new energy automobiles and green ships, and has wide market prospect.

The water distributor of the fuel cell engine is usually arranged between the fuel cell stack and the hydrogen circulating pump and used for realizing water-gas separation and reducing the probability of liquid water entering the hydrogen circulating pump, thereby reducing the power consumption of the circulating pump and prolonging the service life. At present, a cyclone water separator integrated with an automatic drainage function is generally adopted as a water separator.

The utility model discloses a utility model patent "a water knockout drum for fuel cell hydrogen system" that application number is CN200820232027.3 discloses that its water knockout drum is equipped with water level height detection device and electromagnetic drainage valve, and water level height detection device is connected with controlling means with the signal line, and controlling means is connected with the solenoid valve with the signal line to realize the high-efficient automatic drainage of water knockout drum. The utility model discloses a utility model patent "a proton exchange membrane is water knockout drum for fuel cell" of application number CN201521100348.4 discloses that its water knockout drum is equipped with level sensor and drainage solenoid valve, and level sensor and solenoid valve pass through the controller and control line is connected, realize drainage automatic operation.

However, for automobile and marine fuel cell engines, the existing water separators have the obvious disadvantages that: the working conditions of acceleration, deceleration, turning, up-down breaking, emergency braking and the like of automobiles and ships cause the liquid level of a water distributor in a fuel cell engine to incline and swing, so that an error liquid level signal is sent out to enable an electromagnetic valve to be opened frequently, the service life of the electromagnetic valve is shortened, and the risk of gas leakage is caused more seriously; the water separator has poor water separating effect, and liquid water is easy to enter the hydrogen circulating pump, so that the power consumption of the hydrogen circulating pump is increased, and the service life of the hydrogen circulating pump is shortened due to corrosion of a bearing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned prior art existence, provide a novel water knockout drum for car/ship fuel cell engine, have that the technique degree of difficulty is low, safe and reliable, the maintenance cost is low to be made and maintenance cost advantage such as low.

The utility model provides a technical scheme that its technical problem adopted is: a water separator for a vehicle and ship fuel cell engine comprises a gas-water separation unit and an automatic drainage unit; the gas-water separation unit comprises a shell with a gas inlet and a gas outlet at the top and a water outlet at the bottom, a vortex separator for primary gas-water separation, a water baffle connected with the vortex separator through a gas guide pipe and a water stabilizing plate arranged below the water baffle are respectively arranged in the shell, the gas guide pipe is provided with a spiral channel for secondary gas-water separation, the surface of the water baffle is provided with a water guide hole, and the water stabilizing plate is provided with a return groove; the automatic drainage unit comprises a liquid level switch arranged on the water stabilizing plate and a drainage valve arranged at the drainage port, and the drainage valve is connected with the liquid level switch through a controller and a control line and used for realizing automatic drainage.

The outer edge of the water separator for the fuel cell engine of the vehicle and the ship is tightly attached to the inner wall surface of the shell.

The water separator for the fuel cell engine of the vehicle and the ship is characterized in that a liquid level switch is a floating ball liquid level switch.

The water separator for the fuel cell engine of the vehicle and the ship has the water discharge valve which is an electromagnetic valve.

The utility model discloses an actively beneficial effect:

1, the water stabilizing plate at the bottom of the shell adopts a circular groove structure design, so that the probability of the generation of a water separator wrong liquid level signal caused by working conditions such as vehicle/ship acceleration and deceleration, turning, emergency braking and the like is effectively reduced, and the risks of frequent opening of a solenoid valve and gas leakage are avoided;

2, the air duct positioned below the vortex separator adopts a spiral structure, and the outer edge of the water baffle positioned below the air duct is attached to the inner wall of the shell and is provided with a water guide hole, so that the water distribution efficiency of the water distributor is effectively improved, the power consumption of the circulating pump is reduced, and the risk of reducing the service life of the circulating pump is reduced;

3, the utility model discloses the technique degree of difficulty is low, safe and reliable, convenient operation, manufacturing and maintenance cost are low, are suitable for the large-scale production.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The component names corresponding to the labels in the figures are: 1-vortex separator, 1-2-water baffle, 1-3-water stabilizing plate, 1-4-gas guide tube, 1-5-shell, 2-1-liquid level switch and 2-drain valve.

Detailed Description

The present invention will be described in detail with reference to the following drawings and embodiments, wherein:

as shown in figure 1, the utility model discloses a novel water knockout drum for car/ship fuel cell engine, including gas-water separation unit and automatic drainage unit. The gas-water separation unit comprises a vortex separator 1-1, a water baffle 1-2, a water stabilizing plate 1-3, a gas guide pipe 1-4 and a shell 1-5, wherein the top of the shell is provided with a gas inlet and a gas outlet, and the bottom of the shell is provided with a water outlet. The automatic drainage unit comprises a liquid level switch 2-1 and a drainage valve 2-2. The gas guide pipes 1-4 are designed in a spiral shape and used for secondary water diversion treatment of gas, so that the water diversion efficiency of the water diverter is improved. The water baffle 1-2 adopts the design that the outer edge is attached to the inner wall of the shell 1-5 and water guide holes are reserved, and is used for preventing the separated liquid water from splashing and mixing with gas to the maximum extent. The water stabilizing plates 1-3 adopt a shape-reversing design and are used for reducing the probability of generating error liquid level signals of the water separator caused by the working conditions of vehicle/ship acceleration and deceleration, turning, emergency braking and the like. The liquid level switch 2-1 is a floating ball liquid level switch, the drain valve 2-2 is an electromagnetic valve, and is connected with a control line through a controller for realizing automatic drainage.

Combine the utility model discloses a system architecture is right the technical principle of the utility model makes as follows:

under the working state, tail gas of the fuel cell stack enters from the gas inlet of the water separator, is subjected to primary gas-water separation through the vortex separator 1-1, is subjected to secondary gas-water separation through the spirally designed gas guide pipe 1-4, and finally exits from the gas outlet of the water separator and enters the hydrogen circulating pump. The two-stage gas-water separation design can effectively improve the water separation efficiency of the water separator.

When the automobile and the ship are in working conditions of acceleration, deceleration, turning, up-down breaking, emergency braking and the like, the liquid level of a water distributor in the fuel cell engine is greatly inclined, swung and shaken, the water baffle plate 1-2 with the outer edge tightly attached to the inner wall of the shell 1-5 and a water guide hole is reserved effectively prevents liquid water at the bottom from splashing and mixing with gas, the probability of the liquid water entering a hydrogen circulating pump is reduced to a certain extent, and therefore the power consumption of the circulating pump is reduced and the service life of the circulating pump is prolonged; the water stabilizing plate 1-3 provided with the return groove effectively prevents the probability of generating a water separator error liquid level signal due to the shaking of the water level around the floating ball liquid level switch 2-1, thereby avoiding the risks of frequent opening of the electromagnetic valve and gas leakage.

Liquid water after the second-stage gas-water separation is deposited at the bottom of the shell 1-5, and a switch signal is sent to a drain valve 2-2 outside the shell 1-5 through a liquid level switch 2-1 on the water stabilizing plate 1-3, so that automatic drainage operation is realized.

The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and it will be apparent to those skilled in the art that a plurality of modifications and improvements may be made without departing from the inventive concept of the present invention, and all of these modifications and improvements fall within the protection scope of the present invention.

Claims

1. A water separator for a vehicle and vessel fuel cell engine, characterized by: comprises a gas-water separation unit and an automatic drainage unit; the gas-water separation unit comprises a shell (1-5) with a gas inlet and a gas outlet at the top and a water outlet at the bottom, a vortex separator (1-1) for separating gas and water, a water baffle (1-2) connected with the vortex separator (1-1) through a gas guide pipe (1-4) and a water stabilizing plate (1-3) arranged below the water baffle (1-2) are respectively arranged in the shell (1-5), the gas guide pipe (1-4) is provided with a spiral channel for secondary gas-water separation, a water guide hole is arranged on the surface of the water baffle (1-2), and a return groove is arranged on the water stabilizing plate (1-3); the automatic drainage unit comprises a liquid level switch (2-1) arranged on the water stabilizing plate (1-3) and a drainage valve (2-2) arranged at a drainage port, and the drainage valve (2-2) is connected with the liquid level switch (2-1) through a control line and used for realizing automatic drainage.

2. The water separator for the fuel cell engine of the vehicle and the ship as claimed in claim 1, wherein the outer edge of the water baffle (1-2) is tightly attached to the inner wall surface of the shell (1-5).

3. The water separator for the fuel cell engine of the vehicle and the ship as claimed in claim 1, wherein the liquid level switch (2-1) is a float level switch.

4. The water separator for the fuel cell engine of the vehicle or the ship as claimed in claim 1, wherein the drain valve (2-2) is a solenoid valve.