CN215404575U

CN215404575U - Water electrolysis hydrogen production system with electrolyte heating function

Info

Publication number: CN215404575U
Application number: CN202121867169.9U
Authority: CN
Inventors: 包秀敏
Original assignee: Wenzhou Coch Energy Co ltd
Current assignee: Wenzhou Gaoqi Hydrogen Energy Technology Co.,Ltd.
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-04
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a water electrolysis hydrogen production system with an electrolyte heating function, which comprises an electrolytic bath, a hydrogen tank and an oxygen tank which are connected with the electrolytic bath, a heat exchanger which is connected with the hydrogen tank and the oxygen tank, a cooling water inlet which is connected with the heat exchanger through a water inlet pipeline, a cooling water outlet which is connected with the heat exchanger through a water outlet pipeline, and a circulating pump which is arranged between the electrolytic bath and the heat exchanger. The water electrolysis hydrogen production system with the electrolyte heating function greatly shortens the cold start time of the hydrogen production equipment, reduces the time of qualified hydrogen production of the hydrogen production equipment, and reduces the energy consumption of the hydrogen production equipment.

Description

Water electrolysis hydrogen production system with electrolyte heating function

Technical Field

The utility model relates to the technical field of water electrolysis hydrogen production equipment, in particular to a water electrolysis hydrogen production system with an electrolyte heating function.

Background

During the water electrolysis process, the electrolyte in the electrolytic cell is a medium participating in the electrolysis. The temperature of the electrolyte is the key for ensuring the quality of the electrolyzed hydrogen and oxygen. When the temperature of the electrolyte reaches 80-85 ℃, the purity indexes of the generated hydrogen and oxygen are optimal, the voltage of a small chamber participating in electrolysis is also minimum, and the energy consumption corresponding to hydrogen production is also minimum.

Generally, hydrogen production equipment is started to work in a cold state (namely, the electrolyte is in a normal temperature state), and the temperature of the electrolyte is gradually increased by heating the electrolyte through electrolytic current. When the electrolytic hydrogen production equipment works, the electrolytic hydrogen production equipment is started to work in a cold state, and the temperature of the electrolyte can reach 80-85 ℃ generally in a long time. Thus, not only a lot of time is spent, but also a lot of electric power is consumed.

Disclosure of Invention

The utility model overcomes the defects of the prior art, and provides the water electrolysis hydrogen production system with the function of heating the electrolyte, which can quickly heat the electrolyte, so that hydrogen production equipment can quickly produce hydrogen meeting the requirements.

In order to achieve the purpose, the utility model provides the following technical scheme:

the water electrolysis hydrogen production system with the function of heating the electrolyte comprises an electrolytic cell, a hydrogen tank and an oxygen tank which are connected with the electrolytic cell, a heat exchanger which is connected with the hydrogen tank and the oxygen tank, a cooling water inlet which is connected with the heat exchanger through a water inlet pipeline, a cooling water outlet which is connected with the heat exchanger through a water outlet pipeline, a circulating pump which is arranged between the electrolytic cell and the heat exchanger, a heater which is connected with the water inlet pipeline and the water outlet pipeline respectively, and a temperature sensor which is arranged in the heater.

Preferably, a first flow valve is arranged between the heater and the water inlet pipeline and between the heater and the water outlet pipeline, and a second flow valve is arranged on the water inlet pipeline and the water outlet pipeline.

Preferably, the first and second flow valves are ball valves or pneumatic valves.

Preferably, the heater is a water heater, and a heating pipe and circulating heating water are arranged in the heater.

Preferably, the heating tube is a three-phase heating tube.

The utility model has the beneficial effects that:

the water electrolysis hydrogen production system with the electrolyte heating function greatly shortens the cold start time of the hydrogen production equipment, reduces the time of qualified hydrogen production of the hydrogen production equipment, and reduces the energy consumption of the hydrogen production equipment.

Drawings

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

In the figure: 1. an electrolytic cell; 2. a hydrogen tank; 3. an oxygen tank; 4. a heat exchanger; 5. a water inlet pipeline; 6. a cooling water inlet; 7. a water outlet pipeline; 8. a cooling water outlet; 9. a circulation pump; 11. a heater; 12. a temperature sensor; 13. a first flow valve; 14. a second flow valve; 15. heating the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a water electrolysis hydrogen production system with electrolyte heating function comprises an electrolytic cell 1, a hydrogen tank 2 and an oxygen tank 3 connected with the electrolytic cell 1, a heat exchanger 4 connected with the hydrogen tank 2 and the oxygen tank 3, a cooling water inlet 6 connected with the heat exchanger 4 through a water inlet pipeline 5, a cooling water outlet 8 connected with the heat exchanger 4 through a water outlet pipeline 7, and a circulating pump 9 arranged between the electrolytic cell 1 and the heat exchanger 4, and further comprises a heater 11 respectively connected with the water inlet pipeline 5 and the water outlet pipeline 7, wherein a temperature sensor 12 is arranged in the heater 11; a first flow valve 13 is arranged between the heater 11 and the water inlet pipeline 5 and between the heater 11 and the water outlet pipeline 7, and a second flow valve 14 is arranged on the water inlet pipeline 5 and the water outlet pipeline 7; the first flow valve 13 and the second flow valve 14 are ball valves or pneumatic valves; the heater 11 is a water heater, and a heating pipe 15 and circulating heating water are arranged in the heater 11; the heating pipe 15 is a three-phase heating pipe.

By adopting the technical scheme, in the specific implementation of the utility model, when the equipment is not started, the electrolyte of the equipment is heated firstly (at the moment, the second flow valve 14 is in a closed state), and the electrolyte works through the circulating pump 9 of the equipment, so that the cold electrolyte exchanges heat with circulating heating water in the heater 11 in the heat exchanger 4 (at the moment, the second flow valve 14 is also in a closed state), and the temperature of the electrolyte is rapidly increased. When the temperature of the electrolyte reaches a certain degree, the first flow valve 13 is closed, and the hydrogen production equipment is put into operation of producing hydrogen by electrolysis. And after the operation is normal, if the temperature of the electrolyte exceeds 80-85 ℃, the second flow valve 14 is opened at the moment to cool the electrolyte, so that the normal operation of the hydrogen production equipment is ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The water electrolysis hydrogen production system with the function of heating the electrolyte comprises an electrolytic bath, a hydrogen tank and an oxygen tank which are connected with the electrolytic bath, a heat exchanger which is connected with the hydrogen tank and the oxygen tank, a cooling water inlet which is connected with the heat exchanger through a water inlet pipeline, a cooling water outlet which is connected with the heat exchanger through a water outlet pipeline, and a circulating pump which is arranged between the electrolytic bath and the heat exchanger.

2. The system for producing hydrogen by electrolyzing water with the function of heating the electrolyte as claimed in claim 1, wherein a first flow valve is arranged between the heater and the water inlet pipeline and between the heater and the water outlet pipeline, and a second flow valve is arranged on the water inlet pipeline and the water outlet pipeline.

3. The system for producing hydrogen by electrolysis of water with the function of heating the electrolyte as claimed in claim 2, wherein the first flow valve and the second flow valve are ball valves or pneumatic valves.

4. The system for producing hydrogen by electrolyzing water with the function of heating the electrolyte as claimed in claim 1 or 2, wherein the heater is a water heater, and a heating pipe and a circulating water heating device are arranged in the heater.

5. The system for producing hydrogen by water electrolysis with the function of heating the electrolyte according to claim 4, characterized in that the heating pipe is a three-phase heating pipe.