CN213459802U

CN213459802U - Exhaust water replenishing device and fuel cell cooling water system

Info

Publication number: CN213459802U
Application number: CN202022734961.9U
Authority: CN
Inventors: 宋文帅; 张项钊; 王习鹏; 田杰安
Original assignee: Wind Hydrogen Yang Hydrogen Energy Technology Shanghai Co ltd
Current assignee: Wind Hydrogen Yang Hydrogen Energy Technology Shanghai Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-06-15
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses an exhaust moisturizing device, which comprises a pipe body, be provided with water inlet, delivery port, gas vent, moisturizing mouth on the body, the water inlet of body and the delivery port intercommunication of pile, the delivery port of body and the water inlet intercommunication of water pump, the gas vent of body and expansion tank's air inlet intercommunication, the moisturizing mouth with expansion tank's delivery port intercommunication in the inner chamber of body, the body is in the gas vent department of body forms the constriction part. The utility model provides an among the exhaust moisturizing device, the department has the constriction at the exhaust of body. Since the pipe body is contracted at the exhaust port, the pressure of the cooling water at the exhaust port of the pipe body is increased. Since the pressure of the exhaust port of the pipe body is greater than the pressure of the intake port of the expansion tank, the air in the cooling water is smoothly introduced into the expansion tank. The utility model also discloses a fuel cell cooling water system.

Description

Exhaust water replenishing device and fuel cell cooling water system

Technical Field

The utility model relates to a fuel cell cooling water system technical field, more specifically say, relate to an exhaust moisturizing device and a fuel cell cooling water system.

Background

In a fuel cell cooling water system, referring to fig. 1, cooling water flowing out of a stack contains air, and the air is discharged into an expansion tank through an exhaust pipe and then enters the atmosphere. Under the action of the water pump, cooling water and cooling water supplemented from the expansion water tank can be pumped into the radiator for heat dissipation, and the cooling water subjected to heat dissipation can enter the electric pile for cooling and then enter the next cycle period.

Since the outlet of the stack is communicated with the inlet of the water pump, the inlet pressure of the water pump is equal to or lower than the atmospheric pressure, and then the outlet pressure of the stack is equal to or lower than the atmospheric pressure. But the inlet pressure of the expansion tank is equal to atmospheric pressure. Therefore, air at the outlet of the stack cannot be discharged into the expansion tank.

Therefore, how to make the air at the outlet of the stack smoothly enter the air inlet of the expansion tank is a critical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an exhaust moisturizing device, this exhaust moisturizing device can make the air in the cooling water discharge into the expansion tank smoothly. Another object of the utility model is to provide a fuel cell cooling water system. In order to realize the purpose, the following technical scheme is provided:

the utility model provides an exhaust moisturizing device, includes the body, be provided with water inlet, delivery port, gas vent, moisturizing mouth on the body, the water inlet of body and the delivery port intercommunication of pile, the delivery port of body and the water inlet intercommunication of water pump, the gas vent of body and expansion tank's air inlet intercommunication, moisturizing mouth with expansion tank's delivery port intercommunication in the inner chamber of body, the body is in the gas vent department of body forms the constriction.

Preferably, the contraction portion gradually contracts in a flow direction of the cooling water.

Preferably, the pipe body is formed with an expansion portion downstream of the contraction portion in an inner cavity of the pipe body in a flow direction of the cooling water.

Preferably, the expansion portion is gradually expanded in a flow direction of the cooling water.

Preferably, the contraction part is in smooth transition connection with the expansion part.

Preferably, the water replenishing port of the pipe body is located downstream of the expansion portion in a flow direction of the cooling water.

Preferably, the exhaust port and the water replenishing port of the pipe body are arranged along the radial direction of the pipe body.

Preferably, the exhaust port of the pipe body is communicated with the air inlet of the expansion tank through an exhaust pipe.

Preferably, the water replenishing port of the pipe body is communicated with the water outlet of the expansion water tank through a water replenishing pipe.

The utility model also discloses a fuel cell cooling water system, including the exhaust moisturizing device, the exhaust moisturizing device is above-mentioned arbitrary exhaust moisturizing device.

According to the above technical scheme, in the exhaust moisturizing device of the utility model, the department has the constriction at the exhaust of body. Since the pipe body is contracted at the exhaust port, the pressure of the cooling water at the exhaust port of the pipe body is increased. Since the pressure of the exhaust port of the pipe body is greater than the pressure of the intake port of the expansion tank, the air in the cooling water is smoothly introduced into the expansion tank.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive efforts.

FIG. 1 is a schematic flow diagram of cooling water for a fuel cell according to one embodiment of the prior art;

fig. 2 is a cross-sectional view of an exhaust and water replenishing device according to an embodiment of the present invention;

fig. 3 is a schematic flow diagram of fuel cell cooling water according to an embodiment of the present invention.

Wherein, 1 is an exhaust port, and 2 is a water replenishing port.

Detailed Description

The utility model discloses an exhaust moisturizing device, this exhaust moisturizing device can make the air in the cooling water discharge into the expansion tank smoothly. The utility model also discloses a fuel cell cooling system.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The utility model discloses an exhaust moisturizing device, this exhaust moisturizing device include the body. The pipe body is provided with a water inlet, a water outlet, an exhaust port 1 and a water replenishing port 2. Referring to fig. 2, the water inlet of the tube body is communicated with the water outlet of the galvanic pile. The water outlet of the pipe body is communicated with the water inlet of the water pump. The exhaust port 1 of the pipe body is communicated with the air inlet of the expansion water tank. The water replenishing port 2 of the pipe body is communicated with the water outlet of the expansion water tank. In particular, the tube forms a constriction in its interior at its exhaust port 1.

And cooling water flowing out of a water outlet of the galvanic pile enters the pipe body. Due to the presence of the constriction, a large resistance is created against the cooling water, and the pressure of the cooling water increases at the constriction. And the exhaust port 1 of the pipe body is located at the constricted portion, the pressure of the exhaust port 1 of the pipe body is increased. Since the pressure at the exhaust port 1 of the pipe body is greater than the pressure at the intake port of the expansion tank, the air in the cooling water smoothly enters the intake port of the expansion tank through the exhaust port 1 of the pipe body.

Please continue to refer to fig. 2. The contraction portion gradually contracts in the flow direction of the cooling water. Compared with irregular contraction, the gradually contracted contraction part can avoid turbulent flow of cooling water, so that the stability of cooling water circulation is ensured.

The pipe body forms an expansion portion downstream of the contraction portion in a flow direction of the cooling water.

Further, the expansion portion gradually expands along the flow direction of the cooling water.

Further, the contraction part and the expansion part are smoothly transited.

The cooling water encounters the constriction and the pressure increases. Then the increased pressure of the cooling water needs to be released afterwards. On the one hand, cavitation is avoided, and on the other hand, the water replenishing operation is ensured to be smoothly carried out. And the pressure of the cooling water can be released by increasing the inner diameter of the pipe body. Therefore, the expanding part in the present invention is to release the increased pressure of the cooling water.

The water replenishing port 2 of the pipe body is provided downstream of the expansion portion. The cooling water flows through the water replenishing port 2 of the pipe body after releasing the pressure, so that the pressure of the water replenishing port 2 of the pipe body can be ensured to be the pressure after releasing, and the water replenishing operation can be ensured to be carried out smoothly.

In order to avoid turbulence in the cooling water, the expansion part is gradually expanded, as is the contraction part. And the smooth transition connection of the contraction part and the expansion part further ensures the stability of the cooling water.

With continued reference to fig. 2, the exhaust port 1 and the water replenishing port 2 of the tube are both arranged along the radial direction of the tube.

Further, the exhaust port 1 of the pipe body is communicated with the air inlet of the expansion tank through an exhaust pipe. The water replenishing port 2 of the pipe body is communicated with the water outlet of the expansion water tank through a water replenishing pipe. That is, the stack, the water pump, and the radiator form a main circulation water path of the cooling water, and the exhaust pipe and the water replenishing pipe are branch pipes.

The utility model also discloses a fuel cell cooling water system, including the exhaust moisturizing device, this exhaust moisturizing device is above-mentioned arbitrary exhaust moisturizing device. The above exhaust water replenishing device has the above effects, and the fuel cell cooling water system having the above exhaust water replenishing device also has the above effects, so the details are not described herein.

The utility model provides an among the fuel cell cooling water system, the height of galvanic pile and radiator all is less than expansion tank's height. The air in the radiator is also discharged into the expansion tank.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The exhaust and water supplement device is characterized by comprising a pipe body, wherein a water inlet, a water outlet, an exhaust port and a water supplement port are formed in the pipe body, the water inlet of the pipe body is communicated with the water outlet of a galvanic pile, the water outlet of the pipe body is communicated with the water inlet of a water pump, the exhaust port of the pipe body is communicated with the air inlet of an expansion water tank, the water supplement port is communicated with the water outlet of the expansion water tank, and a contraction part is formed at the exhaust port of the pipe body in an inner cavity of the pipe body.

2. The exhaust gas replenishing apparatus according to claim 1, wherein the constricted portion is gradually constricted in the flow direction of the cooling water.

3. The exhaust gas replenishing apparatus according to claim 2, wherein an expanding portion is formed in the pipe body downstream of the contracting portion in the inner cavity of the pipe body in the flow direction of the cooling water.

4. The exhaust and water replenishing device according to claim 3, wherein the expanding portion is gradually expanded in a flow direction of the cooling water.

5. The exhaust and water replenishing device according to claim 3, wherein the contraction part is smoothly transited with the expansion part.

6. The exhaust gas water replenishing device according to claim 4, wherein the water replenishing port of the pipe body is located downstream of the expansion portion in a flow direction of the cooling water.

7. The exhaust and water replenishment device of claim 1, wherein the exhaust port and the water replenishment port of the pipe body are both arranged in a radial direction of the pipe body.

8. The exhaust and water replenishing device according to claim 1, wherein the exhaust port of the pipe body is communicated with the intake port of the expansion tank through an exhaust pipe.

9. The exhaust and water supplementing device according to claim 1, wherein the water supplementing opening of the pipe body is communicated with the water outlet of the expansion water tank through a water supplementing pipe.

10. A fuel cell cooling water system comprising an exhaust gas moisturizing device, wherein the exhaust gas moisturizing device is the exhaust gas moisturizing device of any one of claims 1-9.