CN218232600U - Processing and separating system for electrolytic hydrogen production and electrolytic hydrogen production system - Google Patents

Abstract

The utility model discloses a processing piece-rate system and electrolytic hydrogen manufacturing system of electrolytic hydrogen manufacturing, this processing piece-rate system of electrolytic hydrogen manufacturing includes: the multistage heat exchange device comprises a heat exchanger and a cooler, wherein a gas inlet of the heat exchanger is communicated with the electrolysis device, a gas outlet of the heat exchanger is communicated with a gas inlet of the cooler, the heat exchanger is used for carrying out heat exchange treatment on a gas-liquid mixture output by the electrolysis device and then outputting the gas-liquid mixture, and the cooler is used for cooling treatment on the gas-liquid mixture output by the heat exchanger and then outputting the gas-liquid mixture. The utility model discloses can solve the low problem of system security of current process flow.

Description

Treatment and separation system for electrolytic hydrogen production and electrolytic hydrogen production system

technical field

The utility model relates to the technical field of electrolytic hydrogen production, in particular to a processing and separation system for electrolytic hydrogen production and an electrolytic hydrogen production system.

Background technique

Using renewable energy such as photovoltaics and wind power to generate "green hydrogen" by electrolyzing water to produce hydrogen is the development direction of hydrogen energy in the future. Electrolyzed water hydrogen production devices generally include electrolysis units, post-processing units, purification units, and auxiliary units. The post-processing separation system includes the most complex system of the entire hydrogen production system. It is a process of separating hydrogen, oxygen, and lye produced by electrolysis, recycling the lye, and purifying hydrogen and oxygen for the first time.

However, the existing post-processing units usually directly separate the hydrogen, oxygen, and lye produced by electrolysis, or only separate after a simple cooling treatment. The higher temperature will affect the separation efficiency of the post-processing unit, and even cause serious corrosion to the post-processing unit, which will lead to serious system safety problems.

Utility model content

The main purpose of the utility model is to propose a treatment and separation system for electrolytic hydrogen production, aiming at the problem of low system safety in the existing technological process.

In order to achieve the above purpose, the treatment and separation system for electrolytic hydrogen production proposed by the utility model is applied in the electrolytic hydrogen production system. The electrolytic hydrogen production system includes an electrolysis device, and the treatment and separation system for electrolytic hydrogen production includes:

The multi-stage heat exchange device includes a heat exchanger and a cooler, the air inlet of the heat exchanger communicates with the electrolysis device, the air outlet of the heat exchanger communicates with the air inlet of the cooler, and the The heat exchanger is used to output the gas-liquid mixture output from the electrolysis device after heat exchange treatment, and the cooler is used to output the gas-liquid mixture output from the heat exchanger after cooling treatment.

Optionally, the electrolysis device has an oxygen gas outlet, a hydrogen gas outlet, a first liquid inlet and a second liquid inlet;

The treatment and separation system for electrolytic hydrogen production also includes:

An oxygen treatment device, the air inlet of the oxygen treatment device communicates with the oxygen outlet of the multi-stage heat exchange device, the gas outlet of the oxygen treatment device is used to connect to the oxygen collection device, and the outlet of the oxygen treatment device The liquid port communicates with the first liquid inlet port of the electrolysis device, and the oxygen treatment device is used for gas-liquid separation of the oxygen-liquid mixture output by the multi-stage heat exchange device, and the oxygen after gas-liquid separation is self-exhausted The air port is sent to the oxygen collection device;

A hydrogen processing device, the air inlet of the hydrogen processing device communicates with the hydrogen gas outlet of the multi-stage heat exchange device, the gas outlet of the hydrogen processing device is used to connect to the hydrogen collection device, and the outlet of the hydrogen processing device The liquid port is in communication with the second liquid inlet port of the electrolysis device, and the hydrogen processing device is used for gas-liquid separation of the hydrogen-liquid mixture output by the multi-stage heat exchange device, and the hydrogen gas after gas-liquid separation is automatically discharged The gas port is sent to the hydrogen collection device.

Optionally, the multi-stage heat exchange device includes:

An oxygen-side heat exchanger, the air inlet of the oxygen-side heat exchanger communicates with the oxygen gas outlet of the electrolysis device, and the liquid inlet of the oxygen-side heat exchanger communicates with the liquid outlet of the oxygen treatment device , the liquid outlet of the oxygen-side heat exchanger communicates with the first liquid inlet of the electrolysis device, and the oxygen-side heat exchanger is used to make the oxygen-liquid mixture entering from the air inlet and the oxygen-liquid mixture entering from the liquid inlet liquid for heat exchange;

Oxygen side cooler, the air inlet of the oxygen side cooler communicates with the air outlet of the oxygen side heat exchanger, the air outlet of the oxygen side cooler communicates with the air inlet of the oxygen treatment device, so The liquid inlet of the oxygen side cooler is used to connect to the coolant replenishment device, the liquid outlet of the oxygen side cooler is used to connect to the coolant collection device, and the oxygen side cooler is used to control the flow from the air inlet After the oxygen-liquid mixture is cooled, it is transported to the oxygen treatment device;

A hydrogen-side heat exchanger, the inlet of the hydrogen-side heat exchanger communicates with the hydrogen gas outlet of the electrolysis device, and the liquid inlet of the hydrogen-side heat exchanger communicates with the liquid outlet of the hydrogen treatment device , the liquid outlet of the hydrogen-side heat exchanger communicates with the first liquid inlet of the electrolysis device, and the hydrogen-side heat exchanger is used to make the hydrogen-liquid mixture entering from the air inlet and the hydrogen-liquid mixture entering from the liquid inlet liquid for heat exchange;

A hydrogen side cooler, the inlet of the hydrogen side cooler communicates with the gas outlet of the hydrogen side heat exchanger, the gas outlet of the hydrogen side cooler communicates with the inlet of the hydrogen processing device, the The liquid inlet of the hydrogen side cooler is used to connect to the coolant replenishment device, the liquid outlet of the hydrogen side cooler is used to connect to the coolant collection device, and the hydrogen side cooler is used to control the flow from the air inlet After the hydrogen-liquid mixture is cooled, it is transported to the hydrogen treatment device.

Optionally, the multistage heat exchange device also includes:

The oxygen side cooling pipeline, the liquid inlet of the oxygen side cooling pipeline is connected with the liquid inlet of the oxygen side cooler, the liquid outlet of the oxygen side cooling pipeline is connected with the outlet of the oxygen side cooler Liquid port;

An oxygen side temperature control valve group, the oxygen side temperature control valve group is arranged on the oxygen side cooling pipeline, and the oxygen side temperature control valve group is used to control the on/off of the oxygen side cooling pipeline;

A hydrogen-side cooling pipeline, the liquid inlet of the hydrogen-side cooling pipeline communicates with the liquid inlet of the hydrogen-side cooler, and the liquid outlet of the hydrogen-side cooling pipeline communicates with the outlet of the hydrogen-side cooler Liquid port;

A hydrogen side temperature control valve group, the hydrogen side temperature control valve group is arranged on the hydrogen side cooling pipeline, and the hydrogen side temperature control valve group is used to control the on/off of the hydrogen side cooling pipeline.

Optionally, the oxygen side temperature control valve group is also used to detect the oxygen side pipeline temperature between the oxygen side cooler and the electrolysis device, and control the oxygen side pipeline temperature according to the oxygen side pipeline temperature. On/off of the side cooling line to control the flow of coolant flowing through the oxygen side cooler;

The hydrogen side temperature control valve group is also used to detect the hydrogen side pipeline temperature between the hydrogen side cooler and the electrolysis device, and control the hydrogen side cooling pipeline according to the hydrogen side pipeline temperature on/off to control the coolant flow through the hydrogen side cooler.

Optionally, the treatment and separation system for electrolytic hydrogen production also includes:

A hydrogen-oxygen control valve group, the hydrogen-oxygen control valve group has an oxygen-side pressure control end and a hydrogen-side pressure control end, and the oxygen-side pressure control end of the hydrogen-oxygen control valve group is arranged between the gas outlet of the oxygen treatment device and Between the oxygen collection devices, the hydrogen-side pressure control end of the hydrogen-oxygen control valve group is arranged between the gas outlet of the hydrogen treatment device and the hydrogen collection device;

The hydrogen and oxygen control valve group is used to control the on/off of the pipeline between the oxygen treatment device and the oxygen collection device, or to control the pipeline between the hydrogen treatment device and the hydrogen collection device On/off, so that the difference between the pressure in the oxygen treatment device and the pressure in the hydrogen treatment device is less than a preset pressure difference.

Optionally, the treatment and separation system for electrolytic hydrogen production also includes:

an oxygen-side liquid pump, the liquid inlet of the oxygen-side liquid pump communicates with the liquid outlet of the oxygen treatment device, the liquid outlet of the oxygen-side liquid pump communicates with the first liquid inlet of the electrolysis device, The oxygen-side liquid pump is used to send the liquid after gas-liquid separation in the oxygen treatment device to the electrolysis device.

And/or, the treatment and separation system for electrolytic hydrogen production also includes:

A hydrogen-side liquid pump, the liquid inlet of the hydrogen-side liquid pump communicates with the liquid outlet of the hydrogen treatment device, the liquid outlet of the hydrogen-side liquid pump communicates with the second liquid inlet of the electrolysis device, The hydrogen-side liquid pump is used to send the liquid after gas-liquid separation in the hydrogen treatment device to the electrolysis device.

Optionally, the treatment and separation system for electrolytic hydrogen production also includes:

An oxygen side flow control valve group, the oxygen side flow control valve group is arranged between the liquid outlet of the oxygen treatment device and the first liquid inlet port of the electrolysis device, and the oxygen side flow control valve group is used for Control the on/off of the pipeline between the liquid outlet of the oxygen treatment device and the first liquid inlet of the electrolysis device, and send the liquid after gas-liquid separation of the oxygen treatment device to to said electrolysis unit;

And/or, the treatment and separation system for electrolytic hydrogen production also includes:

A hydrogen-side flow control valve group, the hydrogen-side flow control valve group is arranged between the liquid outlet of the hydrogen treatment device and the second liquid inlet port of the electrolysis device, and the hydrogen-side flow control valve group is used for Control the on/off of the pipeline between the liquid outlet of the hydrogen treatment device and the second liquid inlet of the electrolysis device, and send the liquid after gas-liquid separation of the hydrogen treatment device to the to the electrolysis unit.

Optionally, when the treatment and separation system for electrolytic hydrogen production includes the oxygen side flow control valve group, the detection end of the oxygen side flow control valve group is connected to the oxygen treatment device, and the oxygen side flow control valve group The valve group is also used to detect the height of the liquid level in the oxygen treatment device, and control the liquid outlet of the oxygen treatment device and the first liquid inlet of the electrolysis device according to the height of the liquid level in the oxygen treatment device. The pipeline between the ports is turned on/off, so as to control the height of the liquid level in the oxygen treatment device to be lower than the first preset height;

When the treatment and separation system for electrolytic hydrogen production includes the hydrogen-side flow control valve group, the detection end of the hydrogen-side flow control valve group is connected to the hydrogen processing device, and the hydrogen-side flow control valve group is also used To detect the height of the liquid level in the hydrogen processing device, and according to the height of the liquid level in the hydrogen processing device, control the distance between the liquid outlet of the hydrogen processing device and the first liquid inlet of the electrolysis device The pipeline is turned on/off to control the height of the liquid level in the hydrogen treatment device to be lower than a second preset height.

Optionally, both the oxygen treatment device and the hydrogen treatment device have liquid replenishment ports;

The treatment and separation system for electrolytic hydrogen production also includes:

A pure water tank, the liquid inlet of the pure water tank is used to connect to the pure water replenishment device, and the pure water tank is used to store pure water;

A pure water pump, the liquid inlet of the pure water pump is connected to the liquid outlet of the pure water tank, and the liquid outlet of the pure water pump is respectively connected to the liquid replenishment port of the oxygen treatment device and the liquid replenishment port of the hydrogen treatment device connected, the pure water pump is used to send the pure water stored in the pure water tank to the oxygen treatment device and the hydrogen treatment device.

The utility model also proposes an electrolytic hydrogen production system, including an electrolytic device and the above-mentioned electrolytic hydrogen production treatment and separation system; wherein,

The electrolysis device has an oxygen production chamber and a hydrogen production chamber, the oxygen production chamber has an oxygen gas outlet and a first liquid inlet, the hydrogen production chamber has a hydrogen gas outlet and a second liquid inlet, and the electrolysis device uses The liquid in the oxygen generating chamber and the hydrogen generating chamber is electrolyzed to generate oxygen in the oxygen generating chamber and hydrogen in the hydrogen generating chamber.

The technical scheme of the utility model is provided with a multi-stage heat exchange device to perform multi-stage heat exchange treatment on the oxygen-liquid mixture and the hydrogen-liquid mixture output from the electrolysis device, and then output to the oxygen processing device and the hydrogen processing device for separation processing, thereby achieving The multi-stage heat exchange of the gas-liquid mixture can reduce the corrosion of the gas-liquid mixture to the processing device, improve the separation effect of the gas-liquid mixture, and solve the problem of low system safety in the existing process flow.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is the functional module schematic diagram of an embodiment of the treatment and separation system of electrolytic hydrogen production of the present invention;

Fig. 2 is a functional module schematic diagram of another embodiment of the treatment and separation system for electrolytic hydrogen production of the present invention;

Fig. 3 is a structural schematic diagram of an embodiment of the treatment and separation system for electrolytic hydrogen production of the present invention.

Explanation of reference numbers:

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present utility model, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the relative positional relationship, movement conditions, etc. between the components shown in the figure below are changed, if the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. Implying their relative importance or implying the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

The utility model proposes a treatment and separation system for electrolytic hydrogen production, which is applied in the electrolytic hydrogen production system. The electrolytic hydrogen production system includes an electrolysis device, and the electrolysis device has an oxygen production chamber and a hydrogen production chamber. The oxygen production chamber It has an oxygen gas outlet and a first liquid inlet, and the hydrogen production chamber has a hydrogen gas outlet and a second liquid inlet.

At present, the existing post-processing units usually directly separate the hydrogen, oxygen, and lye produced by electrolysis, or only separate after a simple cooling treatment. Under the long-term treatment process, it is easy to cause gas-liquid The high temperature of the mixture affects the separation efficiency of the post-processing unit, and even causes serious corrosion to the post-processing unit, which leads to serious system safety problems.

In order to solve the above problems, referring to Fig. 1 to Fig. 3, in one embodiment, the treatment and separation system for electrolytic hydrogen production includes:

The multi-stage heat exchange device 10 includes a heat exchanger and a cooler, the air inlet of the heat exchanger communicates with the electrolysis device, the air outlet of the heat exchanger communicates with the air inlet of the cooler, The heat exchanger is used to output the gas-liquid mixture output from the electrolysis device after heat exchange treatment, and the cooler is used to output the gas-liquid mixture output from the heat exchanger after cooling treatment.

It can be understood that during the electrolysis process, a large amount of heat will be generated in the electrolysis device due to the work of the current. Therefore, before the gas-liquid separation of the gas-liquid mixture by the oxygen treatment device 11 and the hydrogen treatment device 12, the present embodiment There is also a multi-stage heat exchange device 10 for multi-stage heat exchange of the gas-liquid mixture. The multi-stage heat exchange device 10 can be composed of cooling equipment such as coolers and heat exchangers, which can fully cool the gas-liquid mixture and can Reduce the corrosion of the gas-liquid mixture to the processing device, and improve the separation effect of the gas-liquid mixture. Multi-stage heat exchange equipment can be realized by using a combination of coolers and heat exchangers. The heat exchanger can use the liquid and gas-liquid mixture after gas-liquid separation to exchange heat, which can not only reduce the amount of coolant used by the cooler, but also improve the efficiency of the separation. The final liquid is heated and then sent to the electrolysis device to avoid damage to the electrolysis device due to the large gap between cold and heat, realize energy saving and environmental protection, and improve the stability and safety of the treatment and separation system for electrolytic hydrogen production.

The utility model realizes the multi-stage heat exchange of the gas-liquid mixture by setting the multi-stage heat exchange device 10, which can reduce the corrosion of the gas-liquid mixture to the processing device and improve the separation effect of the gas-liquid mixture. At the same time, the multi-stage heat exchange device 10 can make full use of the liquid after gas-liquid separation, which can not only reduce the amount of coolant used in the cooler, but also heat the separated liquid and then send it to the electrolysis device to avoid excessive cold and heat differences. The electrolysis device causes damage, realizes energy saving and environmental protection, and improves the stability and safety of the treatment and separation system of electrolytic hydrogen production.

1 to 3, in one embodiment, the electrolysis device has an oxygen outlet, a hydrogen outlet, a first liquid inlet and a second liquid inlet;

The treatment and separation system for electrolytic hydrogen production also includes:

Oxygen treatment device 11, the air inlet of the oxygen treatment device 11 communicates with the oxygen outlet of the multi-stage heat exchange device 10, the gas outlet of the oxygen treatment device 11 is used to connect to the oxygen collection device, and the oxygen The liquid outlet of the treatment device 11 communicates with the first liquid inlet of the electrolysis device, and the oxygen treatment device 11 is used for gas-liquid separation of the oxygen-liquid mixture output by the multi-stage heat exchange device 10, and the gas The oxygen after liquid separation is sent to the oxygen collection device from the gas outlet;

Hydrogen processing device 12, the air inlet of the hydrogen processing device 12 communicates with the hydrogen gas outlet of the multi-stage heat exchange device 10, the gas outlet of the hydrogen processing device 12 is used to connect to the hydrogen collection device, the hydrogen The liquid outlet of the processing device 12 communicates with the second liquid inlet of the electrolysis device, and the hydrogen processing device 12 is used for gas-liquid separation of the hydrogen-liquid mixture output by the multi-stage heat exchange device 10, and the gas-liquid The hydrogen after liquid separation is sent to the hydrogen collection device from the gas outlet.

It can be understood that electrolytic hydrogen production usually uses alkaline liquid for electrolysis, and produces oxygen at the anode and hydrogen at the negative electrode. Since it is the gas produced by electrolysis in alkaline liquid, the electrolysis generated in the electrolytic cell The gas usually carries an alkaline liquid, that is, a gas-liquid mixture. Therefore, in the actual production process, the gas-liquid mixture needs to be processed to collect pure oxygen and hydrogen, but it is very possible under the existing process operation The phenomenon that the hydrogen-oxygen separation system is connected to each other is caused, which has a serious system safety problem.

Therefore, in this embodiment, the treatment and separation system for electrolytic hydrogen production is provided with an oxygen treatment device 11 and a hydrogen treatment device 12 that are separated from each other, wherein the oxygen treatment device 11 communicates with the oxygen generation chamber of the electrolysis device through a closed delivery pipeline. , and the hydrogen processing device 12 communicates with the hydrogen production chamber of the electrolysis device through a closed delivery pipeline, so that the treatment and separation system has independent and separated oxygen processing channels and hydrogen processing channels, and the hydrogen production chamber is generated from the electrolysis device. The gas-liquid mixture produced in the oxygen-generating chamber is separated from the gas-liquid mixture produced in the oxygen-generating chamber to avoid the phenomenon of hydrogen and oxygen cross-linking, and then the gas-liquid mixture generated in the oxygen-generating chamber is separated in the oxygen treatment device 11, and the The processing device 12 processes the gas-liquid mixture generated in the hydrogen production chamber, and separates and processes the gas-liquid mixture independently from each other to obtain pure oxygen and hydrogen respectively. With such arrangement, two independent processing devices carry out separation processing respectively, which reduces the possibility of cross-linking of hydrogen and oxygen, and improves the stability and safety of the processing and separation system.

The electrolysis device has two independent chambers of positive and negative poles. The required liquid is injected into the two chambers of the electrolytic cell, and then the electrolytic electrode of the electrolytic cell is energized to electrolyze the liquid. When the electrolyzed liquid is water or alkaline liquid, oxygen can be generated in the positive electrode chamber, that is, oxygen can be generated in the oxygen generation chamber, and sent to the oxygen treatment device 11 through a closed delivery pipeline for separation treatment. At the same time, hydrogen is generated in the negative electrode chamber, that is, hydrogen is generated in the hydrogen generating chamber, and sent to the hydrogen processing device 12 through a closed delivery pipeline for separation treatment. Both the oxygen treatment device 11 and the hydrogen treatment device 12 can be implemented by using a gas-liquid separation tower or other gas-liquid separation devices. The gas-liquid separation tower can separate the gas and liquid in the gas-liquid mixture by means of gravity, adsorption, washing, etc. , so as to obtain pure oxygen and hydrogen, and at the same time obtain the separated liquid. In this way, a liquid circulation pipeline can also be provided between the oxygen treatment device 11 and the hydrogen treatment device 12 and the electrolysis device, so as to return the liquid after gas-liquid separation to the electrolysis device, so as to improve the utilization rate of the liquid.

The utility model separates the hydrogen produced by the hydrogen production chamber from the oxygen produced by the oxygen production chamber from the electrolysis device by setting the oxygen treatment device 11 and the hydrogen treatment device 12, and the oxygen treatment device 11 and the hydrogen treatment device 12 are respectively independent Separation process is carried out in order to obtain pure oxygen and hydrogen respectively. Moreover, the oxygen treatment device 11 and the hydrogen treatment device 12 are not connected to each other, and the oxygen treatment device 11 and the hydrogen treatment device 12 are completely isolated, which reduces the possibility of hydrogen and oxygen cross-linking, and improves the stability and stability of the treatment and separation system. safety.

1 to 3, in one embodiment, the multi-stage heat exchange device 10 includes:

Oxygen-side heat exchanger 71, the air inlet of the oxygen-side heat exchanger 71 communicates with the oxygen gas outlet of the electrolysis device, the liquid inlet of the oxygen-side heat exchanger 71 communicates with the outlet of the oxygen treatment device The liquid port is connected, and the liquid outlet of the oxygen-side heat exchanger 71 is connected with the first liquid inlet of the electrolysis device, and the oxygen-side heat exchanger 71 is used to make the oxygen-liquid mixture entering from the air inlet and the The liquid entering from the liquid inlet conducts heat exchange;

Oxygen side cooler 51, the air inlet of the oxygen side cooler 51 communicates with the gas outlet of the oxygen side heat exchanger 71, the gas outlet of the oxygen side cooler 51 communicates with the air inlet of the oxygen treatment device The liquid inlet of the oxygen side cooler 51 is used to connect to the coolant replenishment device, the liquid outlet of the oxygen side cooler 51 is used to connect to the coolant collection device, and the oxygen side cooler 51 It is used to cool the oxygen-liquid mixture flowing in from the air inlet, and then transport it to the oxygen treatment device;

A hydrogen-side heat exchanger 72, the inlet of the hydrogen-side heat exchanger 72 communicates with the hydrogen gas outlet of the electrolysis device, the liquid inlet of the hydrogen-side heat exchanger 72 communicates with the outlet of the hydrogen treatment device The liquid port is connected, and the liquid outlet of the hydrogen-side heat exchanger 72 is connected with the first liquid inlet of the electrolysis device, and the hydrogen-side heat exchanger 72 is used to make the hydrogen-liquid mixture entering from the air inlet and the The liquid entering from the liquid inlet conducts heat exchange;

Hydrogen side cooler 52, the inlet of the hydrogen side cooler 52 communicates with the gas outlet of the hydrogen side heat exchanger 72, the gas outlet of the hydrogen side cooler 52 is connected with the inlet of the hydrogen treatment device The liquid inlet of the hydrogen side cooler 52 is used to connect to the coolant replenishment device, the liquid outlet of the hydrogen side cooler 52 is used to connect to the coolant collection device, and the hydrogen side cooler 52 It is used for cooling the hydrogen-liquid mixture flowing in from the gas inlet, and then transporting it to the hydrogen treatment device.

It is understandable that during the electrolysis process of the electrolysis device, due to the workmanship of the current, the electrolysis device will generate a lot of heat during the electrolysis process, and the gas-liquid mixture generated by the oxygen production chamber and the hydrogen production chamber will also carry a large amount of heat. Therefore, in one embodiment, the treatment and separation system is also equipped with an oxygen-side cooler 51 and a hydrogen-side cooler 52 to cool and lower the temperature of the gas-liquid mixture sent from the oxygen-producing chamber and the hydrogen-producing chamber, and then the gas-liquid mixture Sent to the oxygen treatment unit 11 and the hydrogen treatment unit 12. The oxygen-side cooler 51 and the hydrogen-side cooler 52 can be realized by selecting heat exchangers. Referring to FIG. 3, FIG. The side coolers 52 are all realized by heat exchangers. Both the oxygen side cooler 51 and the hydrogen side cooler 52 have two channels, one channel is used to transport the gas-liquid mixture, and the other channel is used to transport the coolant, so that the heat Part of the heat of the fluid is transferred to the cold fluid, that is, the coolant absorbs the temperature in the gas-liquid mixture, and then achieves the effect of cooling the gas-liquid mixture, avoiding the damage to the oxygen treatment device 11 and the hydrogen due to the high temperature of the gas-liquid mixture. The treatment device 12 is damaged, which improves the stability and safety of the treatment and separation system for electrolytic hydrogen production.

Further, a heat exchanger is also provided on the pipeline between the cooler and the electrolysis device. Referring to FIG. 3 , FIG. 3 is a schematic structural diagram of an embodiment of the treatment and separation system for electrolytic hydrogen production of the present invention. The oxygen side heat exchanger 71 and the hydrogen-side heat exchanger 72 both have two channels, one channel is used to transport the gas-liquid mixture, and the other channel is used to transport the liquid after gas-liquid separation. It can be understood that the temperature of the liquid after the separation process is greatly The temperature of the gas-liquid mixture is lower than that of the gas-liquid mixture. Therefore, the heat exchanger can transfer part of the heat of the hot fluid to the cold fluid, that is, the liquid after gas-liquid separation absorbs the temperature of the gas-liquid mixture. The utility model realizes secondary heat exchange by setting a heat exchanger and a cooler, can fully cool down the gas-liquid mixture, can reduce the corrosion of the gas-liquid mixture to the processing device, and improves the separation effect of the gas-liquid mixture, not only It can reduce the coolant consumption of the cooler, and can also heat the separated liquid before sending it to the electrolysis device, so as to avoid damage to the electrolysis device due to the large gap between cold and heat, realize energy saving and environmental protection, and improve the treatment and separation system of electrolytic hydrogen production stability and security.

Optionally, the multistage heat exchange device 10 also includes:

Oxygen side cooling pipeline, the liquid inlet of the oxygen side cooling pipeline is connected with the liquid inlet of the oxygen side cooler 51, and the liquid outlet of the oxygen side cooling pipeline is connected with the oxygen side cooler 51 the liquid outlet;

Oxygen side temperature control valve group 61, the oxygen side temperature control valve group 61 is arranged on the oxygen side cooling pipeline, and the oxygen side temperature control valve group 61 is used to control the conduction/conduction of the oxygen side cooling pipeline turn off;

A hydrogen-side cooling pipeline, the liquid inlet of the hydrogen-side cooling pipeline communicates with the liquid inlet of the hydrogen-side cooler 52, and the liquid outlet of the hydrogen-side cooling pipeline communicates with the hydrogen-side cooler 52 the liquid outlet;

The hydrogen side temperature control valve group 62, the hydrogen side temperature control valve group 62 is arranged on the hydrogen side cooling pipeline, the hydrogen side temperature control valve group 62 is used to control the conduction/conduction of the hydrogen side cooling pipeline off.

Referring to Fig. 3, Fig. 3 is a structural schematic diagram of an embodiment of the treatment and separation system for electrolytic hydrogen production of the present invention. The treatment and separation system for electrolytic hydrogen production is also equipped with cooling bypasses of oxygen side cooler 51 and hydrogen side cooler 52 , used to control the flow of coolant flowing through the oxygen side cooler 51 and the hydrogen side cooler 52 . It can be understood that when the oxygen side temperature control valve group 61 controls the oxygen side cooling pipeline to shut off, the coolant can only pass through the oxygen side cooler 51, and when the oxygen side temperature control valve group 61 controls the oxygen side cooling pipe When the path is open, the coolant can pass through the oxygen side cooler 51 and the oxygen side cooling pipeline. Since the flow rate of the coolant delivered by the coolant replenishing device is constant, the coolant flowing through the oxygen side cooler 51 at this time The traffic will decrease accordingly. Therefore, by controlling the on/off of the hydrogen-side cooling pipeline, the flow rate of the coolant flowing through the oxygen-side cooler 51 can be controlled, thereby changing the cooling effect of the oxygen-side cooler 51 . Similarly, the hydrogen-side temperature control valve group 62 can control the coolant flow through the hydrogen-side cooler 52 .

Optionally, the oxygen-side temperature control valve group 61 is also used to detect the oxygen-side pipeline temperature between the oxygen-side cooler 51 and the electrolysis device, and control the temperature of the oxygen-side pipeline according to the oxygen-side pipeline temperature. On/off of the oxygen side cooling pipeline to control the flow of coolant flowing through the oxygen side cooler 51;

The hydrogen-side temperature control valve group 62 is also used to detect the hydrogen-side pipeline temperature between the hydrogen-side cooler 52 and the electrolysis device, and control the hydrogen-side cooling system according to the hydrogen-side pipeline temperature. The on/off of the pipeline is used to control the flow of coolant flowing through the hydrogen side cooler 52 .

In one embodiment, the detection end of the oxygen side temperature control valve group 61, that is, the detection signal line is set on the oxygen side pipeline between the oxygen side cooler 51 and the oxygen generation chamber, so that the oxygen side temperature control valve group 61 The temperature at the outlet of the oxygen generation chamber can be detected, and the coolant flow through the oxygen side cooler 51 can be adjusted according to the temperature at the outlet of the oxygen generation chamber, thereby changing the cooling effect of the oxygen side cooler 51 . For example, when it is detected that the temperature at the outlet of the oxygen generating chamber is high, the control pipeline is shut off, so that the flow rate of the coolant flowing through the oxygen side cooler 51 is increased, so as to improve the cooling effect of the oxygen side cooler 51 . Conversely, when the temperature at the outlet of the oxygen generating chamber is low, the conduction of the pipeline can be controlled, so that the coolant flow rate passing through the oxygen side cooler 51 is reduced, so as to reduce the cooling effect of the oxygen side cooler 51, thereby saving cooling dosage of the agent. Similarly, the hydrogen-side temperature control valve group 62 can detect the temperature at the outlet of the hydrogen-producing chamber, and control the coolant flow through the hydrogen-side cooler 52 according to the temperature at the outlet of the hydrogen-producing chamber. The utility model sets the temperature control valve group 61 on the oxygen side and the temperature control valve group 62 on the hydrogen side, so that the processing and separation system can control the cooling capacity of the coolant according to the heat generated by the electrolytic cell, and can be matched according to needs, further reducing energy consumption. consumption, while reducing the temperature entering the oxygen treatment unit 11 and the hydrogen treatment unit 12.

Referring to Figures 1 to 3, in one embodiment, the treatment and separation system for electrolytic hydrogen production further includes:

A hydrogen-oxygen control valve group 20, the hydrogen-oxygen control valve group 20 has an oxygen-side pressure control terminal and a hydrogen-side pressure control terminal, and the oxygen-side pressure control terminal of the hydrogen-oxygen control valve group 20 is set in the oxygen treatment device 11 Between the gas outlet of the gas outlet and the oxygen collection device, the hydrogen-side pressure control end of the hydrogen-oxygen control valve group 20 is arranged between the gas outlet of the hydrogen treatment device 12 and the hydrogen collection device;

The hydrogen and oxygen control valve group 20 is used to control the on/off of the pipeline between the oxygen processing device 11 and the oxygen collection device, or to control the connection between the hydrogen processing device 12 and the hydrogen collection device. The pipeline is turned on/off so that the difference between the pressure in the oxygen treatment device 11 and the pressure in the hydrogen treatment device 12 is smaller than a preset pressure difference.

It can be understood that the pressure in the oxygen treatment device 11 and the hydrogen treatment device 12 has a certain influence on their separation ability, therefore, in this embodiment, a hydrogen and oxygen control valve group 20 is also provided for controlling the oxygen treatment device 11 and the pressure in the hydrogen treatment device 12. The hydrogen-oxygen control valve group 20 can be realized by selecting two pressure-controlled valve groups. Referring to FIG. 3, FIG. On the pipeline between the device 11 and the oxygen collection device, another pressure control valve group is arranged on the pipeline between the hydrogen processing device 12 and the hydrogen collection device, which are respectively used to control the corresponding pipeline on/off, thereby controlling The pressure in the oxygen treatment device 11 and the hydrogen treatment device 12.

Further, since the ratio of hydrogen and oxygen generated by electrolysis is fixed, we can also control the hydrogen and oxygen control valve group 20 so that the pressure in the oxygen treatment device 11 is equal to the pressure in the hydrogen treatment device 12. The difference is within a preset range, so as to avoid backflow and cross flow caused by excessive or small pressure difference between the processing devices on both sides. The two pressure control valve groups in the hydrogen-oxygen control valve group 20 can be connected by signal lines, so that the briquetting valve group on the oxygen side can obtain the pressure in the hydrogen processing device 12, and according to the pressure in the hydrogen processing device 12 control the on/off of the pipeline between the oxygen treatment device 11 and the oxygen collection device, thereby controlling the pressure in the oxygen treatment device 11, and then making the pressure in the oxygen treatment device 11 and the hydrogen treatment device The pressure difference within 12 is smaller than the preset pressure difference. Similarly, the briquette valve group on the hydrogen side can also make the pressure difference between the oxygen treatment device 11 and the hydrogen treatment device 12 smaller than the preset pressure difference, thereby maintaining the stability of the entire treatment and separation system.

Referring to Figures 1 to 3, in one embodiment, the treatment and separation system for electrolytic hydrogen production further includes:

An oxygen-side liquid pump 31, the liquid inlet of the oxygen-side liquid pump 31 communicates with the liquid outlet of the oxygen treatment device 11, the liquid outlet of the oxygen-side liquid pump 31 communicates with the first inlet of the electrolysis device The liquid port is connected, and the oxygen-side liquid pump 31 is used to send the liquid after the gas-liquid separation of the oxygen treatment device 11 to the oxygen generation chamber.

And/or, the treatment and separation system for electrolytic hydrogen production also includes:

A hydrogen-side liquid pump 32, the liquid inlet of the hydrogen-side liquid pump 32 communicates with the liquid outlet of the hydrogen treatment device 12, and the liquid outlet of the hydrogen-side liquid pump 32 communicates with the second inlet of the electrolysis device. The liquid port is connected, and the hydrogen-side liquid pump 32 is used to send the liquid after the gas-liquid separation of the hydrogen treatment device 12 to the hydrogen production chamber.

It can be understood that both the oxygen treatment device 11 and the hydrogen treatment device 12 can separate gas and liquid in the gas-liquid mixture, thereby obtaining pure oxygen and hydrogen, and can also obtain separated liquid. Therefore, in this embodiment, an oxygen-side liquid pump 31 and a hydrogen-side liquid pump 32 are respectively provided between the oxygen treatment device 11 and the hydrogen treatment device 12 and the electrolysis device, so as to return the liquid after gas-liquid separation to the electrolysis device. device to improve the utilization of liquid. Referring to FIG. 3 , FIG. 3 is a schematic structural diagram of an embodiment of the treatment and separation system for electrolytic hydrogen production of the present invention. The oxygen side liquid pump 31 is arranged between the oxygen treatment device 11 and the electrolytic cell, and is used to transfer the oxygen treatment device 11 to gas-liquid The separated liquid is sent back to the electrolyzer for secondary use, and the hydrogen-side liquid pump 32 is used to send the liquid after gas-liquid separation by the hydrogen treatment device 12 back to the electrolyzer for secondary use. Such setting makes the electrolyzer form an independent circulation with the oxygen treatment device 11 and the oxygen side liquid pump 31, and the electrolyzer forms another independent circulation with the hydrogen treatment device 12 and the hydrogen side liquid pump 32, and prevents hydrogen and oxygen from interacting with each other. At the same time of crosstalk, the utilization rate of electrolytic liquid is improved, energy saving and environmental protection are realized, and the stability and safety of the treatment and separation system of electrolytic hydrogen production are improved.

Referring to Figures 1 to 3, in one embodiment, the treatment and separation system for electrolytic hydrogen production further includes:

An oxygen side flow control valve group 41, the oxygen side flow control valve group 41 is arranged between the liquid outlet of the oxygen treatment device 11 and the first liquid inlet port of the electrolysis device, the oxygen side flow control valve Group 41 is used to control the on/off of the pipeline between the liquid outlet of the oxygen treatment device 11 and the first liquid inlet of the electrolysis device, and to turn on/off the oxygen treatment device 11 when it is turned on. The liquid after liquid separation is sent to the electrolysis device;

And/or, the treatment and separation system for electrolytic hydrogen production also includes:

A hydrogen-side flow control valve group 42, the hydrogen-side flow control valve group 42 is arranged between the liquid outlet of the hydrogen treatment device 12 and the second liquid inlet of the electrolysis device, the hydrogen-side flow control valve Group 42 is used to control the on/off of the pipeline between the liquid outlet of the hydrogen processing device 12 and the second liquid inlet of the electrolysis device, and turn on/off the hydrogen processing device 12 when it is turned on. The liquid after liquid separation is sent to the electrolysis device.

Referring to Fig. 3, Fig. 3 is a structural schematic diagram of an embodiment of the treatment and separation system for electrolytic hydrogen production of the present invention. In this embodiment, an oxygen side is also provided between the oxygen treatment device 11, the hydrogen treatment device 12 and the electrolytic cell. The flow control valve group 41 and the hydrogen side flow control valve group 42 can control the on/off of the pipelines between the oxygen treatment device 11 and the hydrogen treatment device 12 and the electrolyzer. In the utility model, by setting the flow control valve group 41 on the oxygen side and the flow control valve group 42 on the hydrogen side, on the one hand, the liquid after gas-liquid separation can be sent to the electrolytic cell for secondary use, which improves the utilization rate of the electrolytic liquid and realizes Energy saving and environmental protection. On the other hand, a flow control valve is set on the pipeline, which can flexibly control the on/off of the pipeline between the oxygen treatment device 11 and the hydrogen treatment device 12 and the electrolysis device, so that the gas-liquid mixture will not flow directly from the oxygen treatment device 11 And the hydrogen treatment device 12 returns to the electrolysis device, but the separated liquid is sent back to the electrolysis device after sufficient separation.

Optionally, when the treatment and separation system for electrolytic hydrogen production includes the oxygen side flow control valve group 41, the detection end of the oxygen side flow control valve group 41 is connected to the oxygen treatment device 11, and the oxygen side flow control valve group 41 is connected to the oxygen treatment device 11, and the oxygen The side flow control valve group 41 is also used to detect the height of the liquid level in the oxygen treatment device 11, and according to the height of the liquid level in the oxygen treatment device 11, control the connection between the liquid outlet of the oxygen treatment device 11 and the The pipeline between the first liquid inlets of the electrolysis device is turned on/off to control the height of the liquid level in the oxygen treatment device 11 to be lower than the first preset height;

When the treatment and separation system for electrolytic hydrogen production includes the hydrogen-side flow control valve group 42, the detection end of the hydrogen-side flow control valve group 42 is connected to the hydrogen processing device 12, and the hydrogen-side flow control valve Group 42 is also used to detect the height of the liquid level in the hydrogen processing device 12, and according to the height of the liquid level in the hydrogen processing device 12, control the liquid outlet of the hydrogen processing device 12 and the first electrolysis device. A pipeline between the liquid inlets is turned on/off to control the height of the liquid level in the hydrogen treatment device 12 to be lower than a second preset height.

In one embodiment, the detection end of the oxygen-side flow control valve group 41, that is, the detection signal line is also connected to the oxygen processing device 11, so that the oxygen-side flow control valve group 41 can detect the liquid level in the oxygen processing device 11 , and when the liquid level in the oxygen treatment device 11 is greater than the first preset height, the control pipeline is turned on, so as to send the liquid separated and processed by the oxygen treatment device 11 back to the electrolysis device for secondary use, and make the oxygen The liquid level in the processing device 11 is always lower than the first preset height. Similarly, the hydrogen-side flow control valve group 42 can keep the liquid level in the hydrogen processing device 12 always lower than the second preset height. In the utility model, by setting the oxygen side flow control valve group 41 and the hydrogen side flow control valve group 42, the liquid level height in the oxygen processing device 11 and the hydrogen processing device 12 can be kept within a certain range, so that the gas-liquid separation can be fully It improves the utilization rate of electrolytic liquid, realizes energy saving and environmental protection, and improves the stability and safety of the treatment and separation system of electrolytic hydrogen production.

Referring to Figures 1 to 3, in one embodiment, both the oxygen treatment device 11 and the hydrogen treatment device 12 have liquid replenishment ports;

The treatment and separation system for electrolytic hydrogen production also includes:

A pure water tank 80, the liquid inlet of the pure water tank 80 is used to connect to a pure water replenishment device, and the pure water tank 80 is used to store pure water;

A pure water pump 90, the liquid inlet of the pure water pump 90 is connected to the liquid outlet of the pure water tank 80, and the liquid outlet of the pure water pump 90 is respectively connected to the liquid replenishment port of the oxygen treatment device 11 and the hydrogen gas The liquid replenishment port of the processing device 12 is connected, and the pure water pump 90 is used to send the pure water stored in the pure water tank 80 to the oxygen processing device 11 and the hydrogen processing device 12 .

Referring to Fig. 3, Fig. 3 is a structural schematic diagram of an embodiment of the treatment and separation system for electrolytic hydrogen production of the present invention, wherein the oxygen treatment device 11 and the hydrogen treatment device 12 use a gas-liquid separation tower to realize the separation of the gas-liquid mixture, specifically , the gas-liquid mixture enters the lower part of the gas-liquid separation tower for gas-liquid separation, the separated gas rises in the tower, and after rising to the middle and upper part of the tower, the gas is further sprayed with pure water to carry out a small amount of liquid. After spraying and washing, the gas continues to rise to the gas outlet at the top of the tower. Therefore, in one embodiment, the treatment and separation system is also provided with a pure water tank 80 and a pure water pump 90 for replenishing pure water for the oxygen treatment device 11 and the hydrogen treatment device 12, so that the oxygen treatment device 11 and the hydrogen treatment device 12 can Stable gas-liquid separation of the gas-liquid mixture improves the stability and safety of the separation system for electrolytic hydrogen production. In addition, as shown in Figure 3, a waste liquid collection device can also be installed at the first liquid inlet and the second liquid inlet of the electrolysis device to collect waste liquid after electrolysis or gas-liquid separation, and prevent waste liquid from While decomposing interference, it can also achieve energy saving and environmental protection.

The utility model also proposes an electrolytic hydrogen production system, which includes an electrolysis device and the above-mentioned treatment and separation system for electrolytic water hydrogen production; wherein,

The electrolysis device has an oxygen production chamber and a hydrogen production chamber, the oxygen production chamber has an oxygen gas outlet and a first liquid inlet, the hydrogen production chamber has a hydrogen gas outlet and a second liquid inlet, and the electrolysis device uses The liquid in the oxygen generating chamber and the hydrogen generating chamber is electrolyzed to generate oxygen in the oxygen generating chamber and hydrogen in the hydrogen generating chamber.

In this implementation, the specific structure of the treatment and separation system for hydrogen production by electrolysis refers to the above-mentioned embodiments. Since this photovoltaic inverter adopts all the technical solutions of all the above-mentioned embodiments, it has at least the technical solutions of the above-mentioned embodiments. All the beneficial effects that come, will not repeat them one by one here.

The above is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Under the inventive concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, or Direct/indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims (11)

1. A treatment and separation system for electrolytic hydrogen production, applied in an electrolytic hydrogen production system, the electrolytic hydrogen production system includes an electrolysis device, characterized in that it includes: The multi-stage heat exchange device includes a heat exchanger and a cooler, the air inlet of the heat exchanger communicates with the electrolysis device, the air outlet of the heat exchanger communicates with the air inlet of the cooler, and the The heat exchanger is used to output the gas-liquid mixture output from the electrolysis device after heat exchange treatment, and the cooler is used to output the gas-liquid mixture output from the heat exchanger after cooling treatment. 2. The treatment and separation system for electrolytic hydrogen production as claimed in claim 1, wherein the electrolysis device has an oxygen gas outlet, a hydrogen gas outlet, a first liquid inlet and a second liquid inlet; The treatment and separation system for electrolytic hydrogen production also includes: An oxygen treatment device, the air inlet of the oxygen treatment device communicates with the oxygen outlet of the multi-stage heat exchange device, the gas outlet of the oxygen treatment device is used to connect to the oxygen collection device, and the outlet of the oxygen treatment device The liquid port communicates with the first liquid inlet port of the electrolysis device, and the oxygen treatment device is used for gas-liquid separation of the oxygen-liquid mixture output by the multi-stage heat exchange device, and the oxygen after gas-liquid separation is self-exhausted The air port is sent to the oxygen collection device; A hydrogen processing device, the air inlet of the hydrogen processing device communicates with the hydrogen gas outlet of the multi-stage heat exchange device, the gas outlet of the hydrogen processing device is used to connect to the hydrogen collection device, and the outlet of the hydrogen processing device The liquid port is in communication with the second liquid inlet port of the electrolysis device, and the hydrogen processing device is used for gas-liquid separation of the hydrogen-liquid mixture output by the multi-stage heat exchange device, and the hydrogen gas after gas-liquid separation is automatically discharged The gas port is sent to the hydrogen collection device. 3. The treatment and separation system of electrolytic hydrogen production as claimed in claim 2, wherein the multi-stage heat exchange device comprises: An oxygen-side heat exchanger, the air inlet of the oxygen-side heat exchanger communicates with the oxygen gas outlet of the electrolysis device, and the liquid inlet of the oxygen-side heat exchanger communicates with the liquid outlet of the oxygen treatment device , the liquid outlet of the oxygen-side heat exchanger communicates with the first liquid inlet of the electrolysis device, and the oxygen-side heat exchanger is used to make the oxygen-liquid mixture entering from the air inlet and the oxygen-liquid mixture entering from the liquid inlet liquid for heat exchange; Oxygen side cooler, the air inlet of the oxygen side cooler communicates with the air outlet of the oxygen side heat exchanger, the air outlet of the oxygen side cooler communicates with the air inlet of the oxygen treatment device, so The liquid inlet of the oxygen side cooler is used to connect to the coolant replenishment device, the liquid outlet of the oxygen side cooler is used to connect to the coolant collection device, and the oxygen side cooler is used to control the flow from the air inlet After the oxygen-liquid mixture is cooled, it is transported to the oxygen treatment device; A hydrogen-side heat exchanger, the inlet of the hydrogen-side heat exchanger communicates with the hydrogen gas outlet of the electrolysis device, and the liquid inlet of the hydrogen-side heat exchanger communicates with the liquid outlet of the hydrogen treatment device , the liquid outlet of the hydrogen-side heat exchanger communicates with the first liquid inlet of the electrolysis device, and the hydrogen-side heat exchanger is used to make the hydrogen-liquid mixture entering from the air inlet and the hydrogen-liquid mixture entering from the liquid inlet liquid for heat exchange; A hydrogen side cooler, the inlet of the hydrogen side cooler communicates with the gas outlet of the hydrogen side heat exchanger, the gas outlet of the hydrogen side cooler communicates with the inlet of the hydrogen processing device, the The liquid inlet of the hydrogen side cooler is used to connect to the coolant replenishment device, the liquid outlet of the hydrogen side cooler is used to connect to the coolant collection device, and the hydrogen side cooler is used to control the flow from the air inlet After the hydrogen-liquid mixture is cooled, it is transported to the hydrogen treatment device. 4. The treatment and separation system of electrolytic hydrogen production as claimed in claim 3, wherein the multi-stage heat exchange device further comprises: The oxygen side cooling pipeline, the liquid inlet of the oxygen side cooling pipeline is connected with the liquid inlet of the oxygen side cooler, the liquid outlet of the oxygen side cooling pipeline is connected with the outlet of the oxygen side cooler Liquid port; An oxygen side temperature control valve group, the oxygen side temperature control valve group is arranged on the oxygen side cooling pipeline, and the oxygen side temperature control valve group is used to control the on/off of the oxygen side cooling pipeline; A hydrogen-side cooling pipeline, the liquid inlet of the hydrogen-side cooling pipeline communicates with the liquid inlet of the hydrogen-side cooler, and the liquid outlet of the hydrogen-side cooling pipeline communicates with the outlet of the hydrogen-side cooler Liquid port; A hydrogen side temperature control valve group, the hydrogen side temperature control valve group is arranged on the hydrogen side cooling pipeline, and the hydrogen side temperature control valve group is used to control the on/off of the hydrogen side cooling pipeline. 5. The treatment and separation system for electrolytic hydrogen production according to claim 4, wherein the oxygen side temperature control valve group is also used to detect the oxygen side pipe between the oxygen side cooler and the electrolysis device circuit temperature, and according to the oxygen side pipeline temperature, control the on/off of the oxygen side cooling pipeline, so as to control the coolant flow through the oxygen side cooler; The hydrogen side temperature control valve group is also used to detect the hydrogen side pipeline temperature between the hydrogen side cooler and the electrolysis device, and control the hydrogen side cooling pipeline according to the hydrogen side pipeline temperature on/off to control the coolant flow through the hydrogen side cooler. 6. The treatment and separation system of electrolytic hydrogen production as claimed in claim 2, characterized in that, the treatment and separation system of electrolytic hydrogen production further comprises: A hydrogen-oxygen control valve group, the hydrogen-oxygen control valve group has an oxygen-side pressure control end and a hydrogen-side pressure control end, and the oxygen-side pressure control end of the hydrogen-oxygen control valve group is arranged between the gas outlet of the oxygen treatment device and Between the oxygen collection devices, the hydrogen-side pressure control end of the hydrogen-oxygen control valve group is arranged between the gas outlet of the hydrogen treatment device and the hydrogen collection device; The hydrogen and oxygen control valve group is used to control the on/off of the pipeline between the oxygen treatment device and the oxygen collection device, or to control the pipeline between the hydrogen treatment device and the hydrogen collection device On/off, so that the difference between the pressure in the oxygen treatment device and the pressure in the hydrogen treatment device is less than a preset pressure difference. 7. The treatment and separation system of electrolytic hydrogen production as claimed in claim 2, characterized in that, the treatment and separation system of electrolytic hydrogen production further comprises: an oxygen-side liquid pump, the liquid inlet of the oxygen-side liquid pump communicates with the liquid outlet of the oxygen treatment device, the liquid outlet of the oxygen-side liquid pump communicates with the first liquid inlet of the electrolysis device, The oxygen-side liquid pump is used to send the liquid after the gas-liquid separation of the oxygen treatment device to the electrolysis device; And/or, the treatment and separation system for electrolytic hydrogen production also includes: A hydrogen-side liquid pump, the liquid inlet of the hydrogen-side liquid pump communicates with the liquid outlet of the hydrogen treatment device, the liquid outlet of the hydrogen-side liquid pump communicates with the second liquid inlet of the electrolysis device, The hydrogen-side liquid pump is used to send the liquid after gas-liquid separation in the hydrogen treatment device to the electrolysis device. 8. The treatment and separation system of electrolytic hydrogen production as claimed in claim 2, wherein the treatment and separation system of electrolytic hydrogen production further comprises: An oxygen side flow control valve group, the oxygen side flow control valve group is arranged between the liquid outlet of the oxygen treatment device and the first liquid inlet port of the electrolysis device, and the oxygen side flow control valve group is used for Control the on/off of the pipeline between the liquid outlet of the oxygen treatment device and the first liquid inlet of the electrolysis device, and send the liquid after gas-liquid separation of the oxygen treatment device to to said electrolysis unit; And/or, the treatment and separation system for electrolytic hydrogen production also includes: A hydrogen-side flow control valve group, the hydrogen-side flow control valve group is arranged between the liquid outlet of the hydrogen treatment device and the second liquid inlet port of the electrolysis device, and the hydrogen-side flow control valve group is used for Control the on/off of the pipeline between the liquid outlet of the hydrogen treatment device and the second liquid inlet of the electrolysis device, and send the liquid after gas-liquid separation of the hydrogen treatment device to the to the electrolysis unit. 9. The treatment and separation system for electrolytic hydrogen production as claimed in claim 8, wherein when the treatment and separation system for electrolytic hydrogen production includes the oxygen side flow control valve group, the oxygen side flow control valve group The detection end of the oxygen processing device is connected to the oxygen side flow control valve group, which is also used to detect the height of the liquid level in the oxygen processing device, and according to the height of the liquid level in the oxygen processing device, control the The pipeline between the liquid outlet of the oxygen treatment device and the first liquid inlet of the electrolysis device is turned on/off, so as to control the height of the liquid level in the oxygen treatment device to be lower than the first preset height; When the treatment and separation system for electrolytic hydrogen production includes the hydrogen-side flow control valve group, the detection end of the hydrogen-side flow control valve group is connected to the hydrogen processing device, and the hydrogen-side flow control valve group is also used To detect the height of the liquid level in the hydrogen processing device, and according to the height of the liquid level in the hydrogen processing device, control the distance between the liquid outlet of the hydrogen processing device and the first liquid inlet of the electrolysis device The pipeline is turned on/off to control the height of the liquid level in the hydrogen treatment device to be lower than a second preset height. 10. The treatment and separation system for electrolytic hydrogen production according to any one of claims 2-9, wherein both the oxygen treatment device and the hydrogen treatment device have liquid replenishment ports; The treatment and separation system for electrolytic hydrogen production also includes: A pure water tank, the liquid inlet of the pure water tank is used to connect to the pure water replenishment device, and the pure water tank is used to store pure water; A pure water pump, the liquid inlet of the pure water pump is connected to the liquid outlet of the pure water tank, and the liquid outlet of the pure water pump is respectively connected to the liquid replenishment port of the oxygen treatment device and the liquid replenishment port of the hydrogen treatment device connected, the pure water pump is used to send the pure water stored in the pure water tank to the oxygen treatment device and the hydrogen treatment device. 11. An electrolytic hydrogen production system, characterized in that it includes an electrolytic device and a treatment and separation system for electrolytic hydrogen production according to any one of claims 1-10; wherein, The electrolysis device has an oxygen production chamber and a hydrogen production chamber, the oxygen production chamber has an oxygen gas outlet and a first liquid inlet, the hydrogen production chamber has a hydrogen gas outlet and a second liquid inlet, and the electrolysis device uses The liquid in the oxygen generating chamber and the hydrogen generating chamber is electrolyzed to generate oxygen in the oxygen generating chamber and hydrogen in the hydrogen generating chamber.

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