CN210796654U - Water supply-cooling-temperature control integrated system for pure water SPE water electrolyzer - Google Patents
Water supply-cooling-temperature control integrated system for pure water SPE water electrolyzer Download PDFInfo
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- CN210796654U CN210796654U CN201921379381.3U CN201921379381U CN210796654U CN 210796654 U CN210796654 U CN 210796654U CN 201921379381 U CN201921379381 U CN 201921379381U CN 210796654 U CN210796654 U CN 210796654U
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Abstract
The utility model discloses a water supply-cooling-accuse temperature integration system for pure water SPE water ionizer. Comprises a pure water tank, a water inlet pump, an electrolytic water device and a radiator; the pure water tank is provided with a water tank water replenishing port and an oxygen outlet, and is provided with a conductivity probe; the pure water tank is connected with an electrolytic water device through a conduit, the electrolytic water device is connected with a radiator, and the radiator is connected with the pure water tank; a water inlet pump is arranged between the pure water tank and the water electrolyzer, and a regulator is arranged between the water electrolyzer and the radiator; the regulator is also connected with the pipeline between the radiator and the pure water tank through a pipeline; and a metal ion remover is arranged between the radiator and the pure water tank. The utility model provides a traditional water electrolysis ware need two systems to realize supplying water and radiating problem respectively, supplies water and heat dissipation problem when having solved water electrolysis ware promptly through a return circuit system, can simplify the system and reduce water electrolysis ware's cost.
Description
Technical Field
The utility model relates to a pure water electrolysis hydrogen manufacturing field, concretely relates to a water supply-cooling-accuse temperature integration system for pure water SPE water ionizer.
Background
The pure water SPE electrolytic hydrogen production mainly comprises the step of electrolyzing pure water in an water electrolyzer to produce hydrogen and oxygen (the structural schematic diagram is shown in figure 2). The membrane electrodes prepared by depositing or adhering catalysts on two surfaces of the solid polymer electrolyte membrane are arranged between the anode and the cathode of a (single or double) polar plate in an electrolyzer, an electrolytic cell unit or a stack formed by combining (connecting) a plurality of electrolytic cells together through a shared bipolar plate is formed by sealing, and when pure water is introduced and an external power supply is added, water molecules are oxidized at the anode to separate out oxygen, hydrogen ions and electrons; the hydrogen ions pass through the membrane electrode from the anode side to the cathode side, and the electrons are transferred through an external circuit to the cathode side of the membrane electrode where they combine to form hydrogen gas. In the electrolysis process, moisture needs to be continuously supplemented to the anode side, meanwhile, a large amount of heat is generated on the electrode in the electrolysis process, and if the heat is continuously accumulated, the membrane electrode is overheated, so that serious problems of degradation of the proton exchange membrane, falling of a catalyst and the like are caused, the membrane electrode structure is damaged, and the performance of the electrode is attenuated. However, when the water electrolyzer electrolyzes water, a certain temperature can also improve the reaction activity and the reaction rate of the catalyst, so the temperature generally needs to be controlled within a proper range to improve the electrolysis performance of the water electrolyzer. Therefore, timely removing of redundant heat and good control of the temperature of the water electrolyzer are of great significance for improving the electrolytic performance, prolonging the service life of the membrane electrode and reducing the energy consumption.
In order to achieve the above goal, the current electrolysis technology is generally provided with two independent systems of water supply and cooling. Chinese patent CN 109338392 a discloses a comprehensive treatment device for water electrolysis hydrogen production equipment, which comprises a casing, a power supply, an electrolysis tank and a gas storage tank, wherein a raw material supply system and an electrolysis tank cooling system are respectively arranged: the electrolytic tank is connected with a raw material supply circulating system at the upper part of the electrolytic tank to complete the supply of the raw materials, and the cooling of the electrolytic tank is completed by a special cooling system arranged at the bottom of the electrolytic tank; chinese patent CN101775611A discloses a self-convection heat-dissipation hydrogen and oxygen generator for electrolyzed water, wherein a separate cooling water tank is arranged on the upper part of a raw material supply tank, and the heat generated during electrolysis is used to heat the water in the cooling water tank on the upper part of the raw material supply tank to achieve self-convection heat dissipation. The provision of two systems increases the complexity and manufacturing costs of the systems, and there is therefore a need for improvements in water electrolyser systems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a water supply-cooling-temperature control integrated system of a pure water SPE water electrolyzer and a use method thereof.
The technical proposal of the utility model is as follows.
A water supply-cooling-temperature control integrated system for a pure water SPE water electrolyzer comprises a pure water tank, a water inlet pump, the water electrolyzer and a radiator; the pure water tank is provided with a water tank water replenishing port and an oxygen outlet, and is provided with a conductivity probe; the pure water tank is connected with an electrolytic water device through a conduit, the electrolytic water device is connected with a radiator, and the radiator is connected with the pure water tank; a water inlet pump is arranged between the pure water tank and the water electrolyzer, and a regulator is arranged between the water electrolyzer and the radiator; the regulator is also connected with the pipeline between the radiator and the pure water tank through a pipeline; a metal ion remover is arranged between the radiator and the pure water tank; a heat radiation fan is arranged in the heat radiator.
The utility model also comprises a first temperature sensor, a second temperature sensor and a temperature controller; the first temperature sensor is arranged on a pipeline between the radiator and the metal ion remover; the second temperature sensor is arranged on a pipeline between the regulator and the water electrolyzer, and the temperature controller is electrically connected with the first temperature sensor, the second temperature sensor, the conductivity probe, the cooling fan, the regulator and the water inlet pump.
A use method of a water supply-cooling-temperature control integrated system for a pure water SPE water electrolyzer comprises the following steps:
pure water in the water tank enters a water inlet of the water electrolyzer through a pipeline and a water pump, after the electrolysis in an anode region of the water electrolyzer, the pure water with the increased temperature and oxygen generated by the electrolysis enter a metal ion remover after being cooled by a radiator, and then return to the water tank along a loop pipeline, the separation of the oxygen is realized in the water tank, the separated oxygen is discharged from an oxygen discharge port, the temperature of the electrolytic cell is realized by controlling the flow of water and the dispersion of a heat exchanger, and in order to ensure the work in a low-temperature environment, the system is also provided with a bypass at the position of the radiator.
The utility model discloses the method specifically does: when the system is operated, the controller firstly receives a signal of a conductivity probe in the pure water tank and detects the conductivity of the pure water in the pure water tank; after the detection is qualified, the controller controls the water inlet pump to convey the pure water in the pure water tank to the anode side of the water electrolyzer for electrolytic reaction; after the reaction, high-temperature pure water and oxygen are discharged from an outlet on the anode side of the water electrolyzer and enter a regulator; the controller receives a temperature signal of the temperature sensor, controls the regulator, enables high-temperature pure water to enter the radiator and the bypass according to the proportion of 0-100%, and is converged in front of the metal ion remover, and metal ions dissolved in the circulation process are removed by the metal ion remover and then return to the pure water tank; meanwhile, after the controller receives the temperature signal of the temperature sensor, the rotating speed of the cooling fan is controlled to adjust the cooling effect of the radiator. The pure water and the oxygen returned to the pure water tank are separated in the pure water tank, the pure water is mixed with the pure water in the pure water tank and is continuously circulated, and the oxygen is discharged through an oxygen outlet in the pure water tank.
The utility model can simultaneously solve the water supply and heat dissipation of the water electrolyzer by one set of system.
Furthermore, a water pump, a radiator and a temperature control system are arranged in the loop, so that the water can be effectively supplied to the water electrolyzer, the water can be effectively cooled and the temperature can be controlled, and a special cooling system is not required.
Furthermore, a radiator bypass is arranged, and when heat dissipation is not needed even heat preservation is needed in a low-temperature environment, fluid directly flows back to the water tank through the bypass without passing through the radiator.
Furthermore, a temperature sensor and a controller are arranged on the pure water loop, and effective temperature control of the electrolytic cell is realized by controlling water flow and controlling a cooling fan.
Furthermore, except for adopting corrosion-resistant stainless steel and plastic parts on the whole loop, the loop is also provided with a metal ion remover, and the metal ion remover is filled with ion exchange resin to remove metal ions in pure water, thereby achieving the purpose of ensuring the long service life of the water electrolyzer.
The utility model discloses a realize like this:
pure water enters the water electrolyzer through the water inlet pump, after electrolytic reaction, mixed fluid of high-temperature pure water and oxygen is discharged from an anode outlet of the water electrolyzer, enters a radiator for heat dissipation or (partially or completely) flows through a metal ion remover to remove metal ions through a bypass, then enters a pure water tank, separation of oxygen and water is realized in the water tank, and the oxygen is discharged through an oxygen outlet arranged on the water tank. The temperature of the water electrolyzer is realized by controlling the flow of the water pump, the rotating speed of the cooling fan and the fluid bypass switch by the control system. The purity degree of the pure water is detected by a conductivity detector provided on the water tank.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a water supply-cooling-accuse temperature integration system for pure water SPE water ionizer can accomplish the function that supplies water and cooling accuse temperature simultaneously through one set of system, need not to set up two sets of systems like traditional water ionizer, need not to process complicated cooling cavity and flow field on water ionizer's polar plate, has simplified the structure of pure water ionizer and polar plate greatly, can effectively reduce pure water ionizer's manufacturing cost and running cost.
Drawings
FIG. 1 is a system diagram of the water supply-cooling-temperature control integrated system for the SPE water electrolyzer for pure water of the present invention;
FIG. 2 is a schematic diagram of a pure water SPE water electrolyzer.
The various components in the figure are as follows: a pure water tank 1, a first temperature sensor 2, a radiator 3, a second temperature sensor 4, a regulator 5, an electrolytic water device 6, a water inlet pump 7, a cooling fan 8, a water tank water replenishing opening 9, an oxygen outlet 10, a conductivity probe 11, a metal ion remover 12, a water outlet of the pure water tank, a water inlet pipe of the pure water tank, a water outlet pipe of the pure water tank,
And a controller 13.
Detailed Description
The following description is made in detail by combining with a system schematic diagram of a water supply-cooling-temperature control integrated system of a pure water SPE water electrolyzer:
as shown in fig. 1, a water supply-cooling-temperature control integrated system for a pure water SPE electrolyzer comprises: a pure water tank 1, a water inlet pump 7, an water electrolyzer 6 and a radiator 3; the pure water tank 1 is provided with a water tank water replenishing port 9 and an oxygen outlet 10, and is provided with a conductivity probe 11; the pure water tank 1 is connected with an electrolytic water device 6 through a conduit, the electrolytic water device 6 is connected with a radiator 3, and the radiator 3 is connected with the pure water tank 1; a water inlet pump 7 is arranged between the pure water tank 1 and the water electrolyzer 6, and a regulator 5 is arranged between the water electrolyzer 6 and the radiator 3; a metal ion remover 12 is arranged between the radiator 3 and the pure water tank 1; a heat radiation fan 8 is arranged inside the heat radiator 3. The temperature controller also comprises a first temperature sensor 2, a second temperature sensor 4 and a temperature controller 13; the first temperature sensor 2 is arranged on a pipeline between the radiator 3 and the metal ion remover 12; the second temperature sensor 4 is arranged on a pipeline between the regulator 5 and the water electrolyzer 6, and the temperature controller 13 is electrically connected with the first temperature sensor 2, the second temperature sensor 4, the conductivity probe 11, the cooling fan 8, the regulator 5 and the water inlet pump 7. Except that adopting corrosion-resistant stainless steel and working of plastics on whole return circuit, still set up the metal ion remover on the return circuit, load ion exchange resin in the metal ion remover to detach the metal ion in the pure water, reach the purpose of guaranteeing the long-life of brineelectrolysis ware. As shown in fig. 2, the water electrolyzer 6 in this embodiment is formed by assembling an anode end plate, 1 or more bipolar plates, 1 or more thin-film SPE electrodes, a cathode end plate, a seal ring and the like under the fastening of a screw, wherein when external current with a certain voltage is applied to the anode and the cathode, water can be decomposed on the anode side of the SPE electrodes to generate oxygen, and meanwhile, hydrogen ions are transferred to the cathode side through a proton exchange membrane and reduced to generate hydrogen.
When the system is operated, the controller firstly receives a signal of the conductivity probe 11 in the pure water tank 1 and detects the conductivity of the pure water in the pure water tank 1; after the detection is qualified, the controller 13 controls the water inlet pump 7 to convey the pure water in the pure water tank 1 to the anode side of the water electrolyzer 6 for electrolysis reaction; after the reaction, high-temperature pure water and oxygen are discharged from an outlet at the anode side of the water electrolyzer 6 and enter the regulator 5; the controller 13 receives the temperature signal of the temperature sensor 4, controls the regulator 5, and has the function of regulating the proportion of water passing through the radiator and passing through the bypass (without passing through the radiator), so that high-temperature pure water enters the radiator 3 and the bypass according to the proportion of 0-100 percent, is converged in front of the metal ion remover 12, and returns to the pure water tank 1 after metal ions dissolved in the circulation process are removed by the metal ion remover; meanwhile, the controller 13 controls the rotation speed of the cooling fan 8 to adjust the cooling effect of the heat sink 3 after receiving the temperature signal of the temperature sensor 2. The pure water and the oxygen returned to the pure water tank 1 are separated in the pure water tank 1, the pure water is mixed with the pure water in the pure water tank 1, and the circulation is continued, and the oxygen is discharged through the oxygen discharge port 10 in the pure water tank 1.
It should be understood that the above detailed description of the embodiments of the present invention with the help of the preferred embodiments is illustrative and not restrictive, and it should not be considered that the detailed embodiments of the present invention are limited thereto, and it should be understood that the technical solutions described in the embodiments can be modified or some technical features can be replaced equally by those skilled in the art without departing from the scope of the present invention, which is defined by the claims of the present invention.
Claims (3)
1. A water supply-cooling-temperature control integrated system for a pure water SPE water electrolyzer, comprising: a pure water tank (1), a water inlet pump (7), an electrolytic water device (6) and a radiator (3); the pure water tank (1) is provided with a water tank water replenishing port (9) and an oxygen outlet (10) and is provided with a conductivity probe (11); the pure water tank (1) is connected with an electrolytic water device (6) through a conduit, the electrolytic water device (6) is connected with a radiator (3), and the radiator (3) is connected with the pure water tank (1); a water inlet pump (7) is arranged between the pure water tank (1) and the water electrolyzer (6), and a regulator (5) is arranged between the water electrolyzer (6) and the radiator (3); the regulator (5) is also connected with a pipeline between the radiator (3) and the pure water tank (1) through a pipeline; a metal ion remover (12) is arranged between the radiator (3) and the pure water tank (1); and a heat radiation fan (8) is arranged in the heat radiator (3).
2. The integrated water supply-cooling-temperature control system for a pure water SPE water electrolyzer of claim 1 further comprising a first temperature sensor (2), a second temperature sensor (4) and a temperature controller (13); the first temperature sensor (2) is arranged on a pipeline between the radiator (3) and the metal ion remover (12); the second temperature sensor (4) is arranged on a pipeline between the regulator (5) and the water electrolyzer (6), and the temperature controller (13) is electrically connected with the first temperature sensor (2), the second temperature sensor (4), the conductivity probe (11), the cooling fan (8), the regulator (5) and the water inlet pump (7).
3. The integrated water supply-cooling-temperature control system for an SPE water electrolyzer of pure water as claimed in claim 1, wherein the water electrolyzer is further provided with a metal ion remover, which is filled with ion exchange resin to remove metal ions in pure water, in addition to corrosion-resistant stainless steel and plastic parts, which are used in the whole loop, thereby ensuring long service life of the water electrolyzer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921379381.3U CN210796654U (en) | 2019-08-23 | 2019-08-23 | Water supply-cooling-temperature control integrated system for pure water SPE water electrolyzer |
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| CN201921379381.3U CN210796654U (en) | 2019-08-23 | 2019-08-23 | Water supply-cooling-temperature control integrated system for pure water SPE water electrolyzer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408957A (en) * | 2019-08-23 | 2019-11-05 | 华南理工大学 | A kind of water supply-cooling-temperature control integral system and its application method for pure water SPE water electrolyzer |
| CN112899706A (en) * | 2021-01-18 | 2021-06-04 | 阳光电源股份有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN112899726A (en) * | 2021-01-18 | 2021-06-04 | 阳光电源股份有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN113930795A (en) * | 2021-07-22 | 2022-01-14 | 陕西工业职业技术学院 | System for producing hydrogen by electrolyzing pure water |
-
2019
- 2019-08-23 CN CN201921379381.3U patent/CN210796654U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408957A (en) * | 2019-08-23 | 2019-11-05 | 华南理工大学 | A kind of water supply-cooling-temperature control integral system and its application method for pure water SPE water electrolyzer |
| CN112899706A (en) * | 2021-01-18 | 2021-06-04 | 阳光电源股份有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN112899726A (en) * | 2021-01-18 | 2021-06-04 | 阳光电源股份有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN112899706B (en) * | 2021-01-18 | 2023-11-07 | 阳光氢能科技有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN112899726B (en) * | 2021-01-18 | 2023-11-07 | 阳光氢能科技有限公司 | Water electrolysis hydrogen production system and control method thereof |
| CN113930795A (en) * | 2021-07-22 | 2022-01-14 | 陕西工业职业技术学院 | System for producing hydrogen by electrolyzing pure water |
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