Intelligent gas management control system

Abstract

The utility model discloses an intelligent fuel gas management control system, which relates to the field of electrolytic hydrogen production fuel gas technology and comprises an electrolytic bath, a hydrogen flow path, an oxygen flow path, a convergence flow path and a controller, a first end of the hydrogen flow path is connected to the electrolytic cell; the first end of the oxygen flow path is connected to the electrolytic bath; the second end of the hydrogen flow path is connected to the second end of the oxygen flow path; the first end of the converging flow path is connected to the second end of the hydrogen flow path and the second end of the oxygen flow path at the same time; the hydrogen flow path and the oxygen flow path are each provided with a flow adjusting piece, a controller is electrically connected to the flow adjusting pieces of the hydrogen flow path and the oxygen flow path at the same time, and the controller can control the opening degree of the flow adjusting pieces so as to adjust the mixing proportion of hydrogen and oxygen in the converging flow path. The device can intelligently adjust the mixing ratio of hydrogen, oxygen and fuel gas, and is good in applicability and high in safety.

Description

Technical Field

[0001] The utility model relates to the field of electrolytic hydrogen production gas technology, and in particular to an intelligent gas management and control system. Background Art

[0002] The oxyhydrogen flame has the characteristics of strong firepower and high temperature, and has a wide range of uses in combustion and cutting. The existing oxyhydrogen fuel gas is a fuel gas obtained by electrolyzing water to generate hydrogen and oxygen, and then mixing hydrogen and oxygen. For example, the Chinese utility model patent with patent application number 202223608839.2 discloses a multi-working head co-generator with mutually isolated gas source channels and electrolyzed water hydrogen generator, which generates a hydrogen and oxygen mixed gas through the electrolysis of water by the generator, and the hydrogen and oxygen mixed gas is led out through the independent gas channels of the gas collection part at the upper end of the generator for cutting, arc welding, etc.

[0003] In the above-mentioned related technologies, water is directly pumped into the generator for electrolysis through a diaphragm pump, and the quality of the water cannot be guaranteed, which is not conducive to controlling the quality of hydrogen and oxygen generation; the generated hydrogen and oxygen are directly mixed and transported, and the ratio of the mixed gas cannot be adjusted; the direct transportation of mixed hydrogen and oxygen places high requirements on system safety. Summary of the invention

[0004] The purpose of the utility model is to provide an intelligent gas management and control system, which can intelligently adjust the hydrogen-oxygen gas mixing ratio, has good applicability and high safety.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] The utility model provides an intelligent gas management and control system, comprising an electrolytic cell, a hydrogen flow path, an oxygen flow path, a confluent flow path and a controller; the electrolytic cell is used to electrolyze water to generate hydrogen and oxygen; the first end of the hydrogen flow path is connected to the electrolytic cell for hydrogen to flow in; the first end of the oxygen flow path is connected to the electrolytic cell for oxygen to flow in; the second end of the hydrogen flow path is connected to the second end of the oxygen flow path; the first end of the confluent flow path is simultaneously connected to the second end of the hydrogen flow path and the second end of the oxygen flow path; the second end of the confluent flow path is used to lead out the mixed gas;

[0007] The hydrogen flow path and the oxygen flow path both have flow regulators, and the controller is electrically connected to the flow regulators of the hydrogen flow path and the oxygen flow path at the same time. The controller can control the opening of the flow regulators to adjust the mixing ratio of hydrogen and oxygen in the merged flow path.

[0008] In this solution, the electrolyzer electrolyzes water to generate hydrogen and oxygen. After hydrogen and oxygen are transported and processed through the hydrogen flow path and the oxygen flow path respectively, hydrogen and oxygen are merged in the merged flow path to form hydrogen-oxygen fuel gas, and the merged hydrogen-oxygen fuel gas flows out from the second end of the merged flow path for use. In this process, since hydrogen and oxygen need to be merged after the merged flow path, the hydrogen and oxygen in the hydrogen flow path and the oxygen flow path are not mixed, the danger after leakage is small and the safety is high. The controller can adjust the opening of the flow regulating parts in the hydrogen flow path and the oxygen flow path, thereby adjusting the ratio of hydrogen and oxygen in the merged flow path to meet the use requirements of different practical situations.

[0009] Furthermore, the electrolytic cell is connected to a water treatment tank, and the water treatment tank is used to remove impurities and regulate water.

[0010] In this scheme, the electrolytic cell is connected to a water treatment tank, and water is stored in the water treatment tank before electrolysis. The water before electrolysis is removed from the water by the water treatment tank, adjusted, and a catalyst is added so that the water meets the electrolysis requirements. At the same time, the water treatment tank can store water for electrolysis, reducing the impact of water source fluctuations on the electrolysis process.

[0011] Furthermore, the intelligent gas management and control system also includes a combustion furnace, and the second end of the merged flow path is connected to the combustion furnace and provides hydrogen-oxygen mixed gas to the combustion furnace.

[0012] In this solution, the hydrogen-oxygen mixed gas generated by the intelligent gas management and control system is used for combustion in the combustion furnace. Hydrogen and oxygen are prepared on-site and mixed before being injected into the combustion chamber for combustion, which facilitates intelligent management and does not require storage and transportation.

[0013] Furthermore, a first anti-flashback valve is provided on the converging flow path, and the first anti-flashback valve is electrically connected to the controller.

[0014] In this solution, a first anti-flashback valve is provided on the converging flow path to prevent flashback when the hydrogen-oxygen fuel gas in the combustion chamber burns. The first anti-flashback valve is electrically connected to a controller, and the controller can control the opening of the first anti-flashback valve to adjust the gas flow rate of the converging flow path.

[0015] Furthermore, the hydrogen flow path is sequentially connected to a water-hydrogen separator, a hydrogen purifier and a hydrogen booster pump from the first end to the second end; the oxygen flow path is sequentially connected to a water-oxygen separator, an oxygen purifier and an oxygen booster pump from the first end to the second end.

[0016] In this solution, the hydrogen generated by electrolysis is separated from water by a water-hydrogen separator in the hydrogen flow path, and then impurities are removed by a hydrogen purifier; the hydrogen booster pump provides pressure to drive the hydrogen to flow from the first end to the second end of the hydrogen flow path. At the same time, the generated oxygen is separated from water by a water-oxygen separator in the oxygen flow path, and impurities are removed by an oxygen purifier; the oxygen booster pump provides pressure to drive the oxygen to flow from the first end to the second end of the oxygen flow path.

[0017] Furthermore, the hydrogen flow path is also connected to a hydrogen tank, and the oxygen flow path is also connected to an oxygen tank; the hydrogen tank and the oxygen tank are used to store hydrogen and oxygen generated by electrolysis, respectively.

[0018] In the present scheme, hydrogen and oxygen can be temporarily stored by setting up hydrogen tanks and oxygen tanks, so that hydrogen and oxygen can be temporarily stored when the production rate of hydrogen and oxygen is high, and hydrogen and oxygen can be released when the production rate of hydrogen and oxygen is low, so that the flow rate of the mixed gas in the merged flow path is relatively stable, and it is also convenient to adjust the ratio of hydrogen and oxygen in the mixed gas.

[0019] Further, a check valve is provided at the second end of the hydrogen flow path and / or the second end of the oxygen flow path, and the check valve allows one-way flow in a direction toward the merged flow path.

[0020] In this embodiment, a check valve is provided at the second end of the hydrogen flow path to prevent the mixed hydrogen and oxygen fuel gases from flowing back into the hydrogen flow path; and / or a check valve is provided on the oxygen flow path to prevent the mixed hydrogen and oxygen fuel gases from flowing back into the oxygen flow path.

[0021] Furthermore, a second anti-flashback valve is provided at the second end of the hydrogen flow path and / or the second end of the oxygen flow path.

[0022] In this solution, a second anti-flashback valve is provided to further prevent the hydrogen-oxygen fuel gas from flashing back into the hydrogen flow path and / or the oxygen flow path, thereby ensuring the safety of the hydrogen flow path and the oxygen flow path.

[0023] Furthermore, at least one pressure gauge is provided on each of the hydrogen flow path and the oxygen flow path, and the pressure gauges are electrically connected to the controller. The controller can control the ratio of hydrogen and oxygen in the merged flow path according to the pressure of the pressure gauges.

[0024] In the present solution, at least one pressure gauge is provided on each of the hydrogen flow path and the oxygen flow path. The pressure gauges on the hydrogen flow path and the oxygen flow path can obtain the gas pressure of the hydrogen flow path and the oxygen flow path, so that the reaction rate of the electrolyzer or the opening of each valve can be adjusted according to the gas pressure to avoid damage to the pipeline due to overpressure; at the same time, the ratio of hydrogen and oxygen can be obtained through the gas pressure values ​​of the hydrogen flow path and the oxygen flow path, which makes it easier to adjust the mixing ratio of hydrogen and oxygen in the merged flow path.

[0025] Furthermore, the controller is electrically connected to a large scheduling screen, and the large scheduling screen can display the gas pressure of the hydrogen flow path and / or the gas pressure of the oxygen flow path and / or the gas flow rate of the merged flow path.

[0026] In this solution, the controller is electrically connected to the scheduling screen, and the system-related parameters are displayed on the scheduling screen to enhance the visibility of the system and facilitate system monitoring.

[0027] In summary, the utility model has the following beneficial effects:

[0028] In the intelligent gas management and control system of the utility model, hydrogen and oxygen need to be merged after the merging flow path, and the hydrogen and oxygen in the hydrogen flow path and the oxygen flow path are not mixed, so the danger after leakage is small and the safety is high. The controller can adjust the opening of the flow regulating parts in the hydrogen flow path and the oxygen flow path, thereby adjusting the ratio of hydrogen and oxygen in the merging flow path to meet the use requirements of different usage conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an intelligent gas management and control system according to an embodiment of the utility model.

[0030] In the figure:

[0031] 1000. Intelligent gas management and control system; 100. Electrolyzer; 200. Hydrogen flow path; 210. Water-hydrogen separator; 220. Hydrogen purifier; 230. Hydrogen booster pump; 240. Hydrogen tank; 300. Oxygen flow path; 310. Water-oxygen separator; 320. Oxygen purifier; 330. Oxygen booster pump; 340. Oxygen tank; 400. Converging flow path; 410. First anti-flashback valve; 420. Flow meter; 500. Controller; 600. Water treatment tank; 701. Check valve; 702. Pressure gauge; 703. Second anti-flashback valve; 800. Combustion furnace; 900. Scheduling screen. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings.

[0033] This embodiment discloses an intelligent gas management and control system 1000. Figure 1The intelligent gas management and control system 1000 includes an electrolyzer 100, a hydrogen flow path 200, an oxygen flow path 300, a confluent flow path 400 and a controller 500. The electrolyzer 100 is used to electrolyze water to generate hydrogen and oxygen. The first end of the hydrogen flow path 200 is connected to the electrolyzer 100, and the electrolyzer 100 is used to allow hydrogen to flow in; the first end of the oxygen flow path 300 is connected to the electrolyzer 100, and is used to allow oxygen to flow in; the second end of the hydrogen flow path 200 is connected to the second end of the oxygen flow path 300; the first end of the confluent flow path 400 is simultaneously connected to the second end of the hydrogen flow path 200 and the second end of the oxygen flow path 300; the second end of the confluent flow path 400 is used to lead out the mixed gas for use.

[0034] The electrolytic cell 100 is connected to a water treatment tank 600, which is used to remove impurities and regulate water. Water is first stored in the water treatment tank 600 before electrolysis. The water before electrolysis is purified and regulated by the water treatment tank 600 and a catalyst is added to the water so that the water meets the electrolysis requirements. At the same time, the water treatment tank 600 can store water for electrolysis, reducing the impact of water source fluctuations on the electrolysis process.

[0035] In this embodiment, the hydrogen flow path 200 and the oxygen flow path 300 both have flow regulating parts, and the controller 500 is electrically connected to the flow regulating parts of the hydrogen flow path 200 and the oxygen flow path 300 at the same time. The controller 500 can control the opening of the flow regulating parts to adjust the mixing ratio of hydrogen and oxygen in the confluent flow path 400. Specifically, the flow regulating part can be various valve parts, and the valve core of the valve part is driven to move by an electric driving part, and the electric driving part is electrically connected to the controller 500, so that the flow of the hydrogen flow path 200 and the oxygen flow path 300 can be remotely controlled by the controller 500 to adjust the hydrogen-oxygen mixing ratio, without the need for on-site operation, and the operation is more convenient.

[0036] Thus, the electrolyzer 100 electrolyzes water to generate hydrogen and oxygen. After the hydrogen and oxygen are transported and processed through the hydrogen flow path 200 and the oxygen flow path 300 respectively, the hydrogen and oxygen are merged in the confluent flow path 400 to form hydrogen-oxygen fuel gas, and the merged hydrogen-oxygen fuel gas flows out from the second end of the confluent flow path 400 for use. In this process, since hydrogen and oxygen need to be merged after the confluent flow path 400, the hydrogen and oxygen in the hydrogen flow path 200 and the oxygen flow path 300 are not mixed, and the danger after leakage is small and the safety is high. The controller 500 can adjust the opening of the flow regulating parts in the hydrogen flow path 200 and the oxygen flow path 300, thereby adjusting the ratio of hydrogen and oxygen in the confluent flow path 400 to meet the use requirements of different practical situations.

[0037] In this embodiment, the hydrogen flow path 200 includes a water-hydrogen separator 210, a hydrogen purifier 220, a hydrogen booster pump 230 and a hydrogen tank 240 connected in sequence from the first end to the second end. The electrolyzer 100 is connected to the water-hydrogen separator 210, and the hydrogen generated by electrolysis is separated from water by the water-hydrogen separator 210 of the hydrogen flow path 200, and then the impurities are removed by the hydrogen purifier 220; the hydrogen booster pump 230 provides pressure to drive the hydrogen to flow from the first end to the second end of the hydrogen flow path 200. The hydrogen tank 240 can temporarily store hydrogen, so that it can temporarily store hydrogen when the hydrogen generation rate is high, and release hydrogen when the hydrogen generation rate is low, so that the hydrogen flowing out of the second end of the hydrogen flow path 200 is relatively stable, and it is also convenient to adjust the ratio of hydrogen and oxygen in the mixed gas.

[0038] A check valve 701 is disposed at the second end of the hydrogen flow path 200, and the check valve 701 allows one-way flow from the hydrogen flow path 200 to the merged flow path 400. The check valve 701 is disposed at the second end of the hydrogen flow path 200 to prevent the mixed hydrogen and oxygen fuel gases from flowing back into the hydrogen flow path 200.

[0039] In this embodiment, the oxygen flow path 300 includes a water-oxygen separator 310, an oxygen purifier 320, an oxygen booster pump 330 and an oxygen tank 340 connected in sequence from the first end to the second end. The electrolyzer 100 is connected to the water-oxygen separator 310, and the oxygen generated by electrolysis is separated from water by the water-oxygen separator 310, and then the impurities are removed by the oxygen purifier 320. The oxygen booster pump 330 provides pressure to drive the oxygen to flow from the first end to the second end of the oxygen flow path 300. The oxygen tank 340 can temporarily store oxygen, so that it can temporarily store oxygen when the oxygen generation rate is large, and release oxygen when the oxygen generation rate is small, so that the oxygen flowing out of the second end of the oxygen flow path 300 is relatively stable, and it is also convenient to adjust the ratio of hydrogen and oxygen in the mixed gas.

[0040] A check valve 701 is disposed at the second end of the oxygen flow path 300, and the check valve 701 allows one-way flow from the oxygen flow path 300 to the merged flow path 400. The check valve 701 is disposed at the second end of the oxygen flow path 300 to prevent the mixed hydrogen and oxygen fuel gases from flowing back into the hydrogen flow path 200.

[0041] In this embodiment, at least one pressure gauge 702 is provided on each of the hydrogen flow path 200 and the oxygen flow path 300. The pressure gauge 702 is provided at the second end of the hydrogen flow path 200 and the second end of the oxygen flow path 300 to obtain the outlet pressure values ​​of the hydrogen flow path 200 and the oxygen flow path 300, so that the reaction rate of the electrolyzer 100 or the opening of each valve can be adjusted according to the pressure to avoid damage to the pipeline due to overpressure. At the same time, the ratio of hydrogen and oxygen can be obtained through the pressure values ​​of the hydrogen flow path 200 and the oxygen flow path 300, so as to facilitate the adjustment of the mixing ratio of hydrogen and oxygen in the confluent flow path 400.

[0042] The pressure gauges 702 are electrically connected to the controller 500 , and the controller 500 can control the ratio of hydrogen and oxygen in the merged flow path 400 according to the pressure of the pressure gauges 702 .

[0043] In this embodiment, the intelligent gas management and control system 1000 further includes a combustion furnace 800, and the second end of the merged flow path 400 is connected to the combustion furnace 800 and provides hydrogen-oxygen mixed gas to the combustion furnace 800. The hydrogen-oxygen mixed gas generated by the intelligent gas management and control system 1000 is used for combustion in the combustion furnace 800, and hydrogen and oxygen are prepared on-site and mixed and then injected into the combustion chamber for combustion, which is convenient for intelligent management and does not require storage and transportation.

[0044] In this embodiment, the hydrogen in the hydrogen flow path 200 can be mixed with the oxygen in the oxygen flow path 300 in the merged flow path 400 to form a hydrogen-oxygen mixed fuel gas which is then added to the combustion furnace 800 for combustion. In other embodiments, the hydrogen in the hydrogen flow path 200 can also directly enter the combustion furnace 800 through the merged flow path 400 for combustion without being mixed with the oxygen in the oxygen flow path 300.

[0045] The confluent flow path 400 is provided with a first anti-flashback valve 410, which is electrically connected to the controller 500. The first anti-flashback valve 410 is provided to prevent flashback from occurring in the pipeline of the confluent flow path 400 when the hydrogen-oxygen fuel gas is burned in the combustion chamber. The first anti-flashback valve 410 is electrically connected to the controller 500, and the opening of the first anti-flashback valve 410 can be controlled by the controller 500 to adjust the gas outlet flow rate of the confluent flow path 400.

[0046] A flow meter 420 is also provided on the converging flow path 400 to facilitate or control the flow of the hydrogen and oxygen fuel gases in the converging flow path 400 , thereby facilitating the regulation of the flow of the hydrogen and oxygen fuel gases.

[0047] In addition, a second anti-flashback valve 703 is also provided at the second end of the hydrogen flow path 200 and the second end of the oxygen flow path 300. The second anti-flashback valve 703 is provided to further prevent the hydrogen and oxygen fuel gas from flashing back into the hydrogen flow path 200 and / or the oxygen flow path 300, thereby ensuring the safety of the hydrogen flow path 200 and the oxygen flow path 300.

[0048] In this embodiment, the controller 500 is electrically connected to a scheduling screen 900, and the scheduling screen 900 can display the gas pressure of the hydrogen flow path 200 and / or the gas pressure of the oxygen flow path 300 and / or the gas flow rate of the confluent flow path 400. By displaying system-related parameters on the scheduling screen 900, the visibility of the system is enhanced, which facilitates system monitoring.

[0049] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An intelligent gas management and control system, It is characterized in that The invention comprises an electrolytic cell (100), a hydrogen flow path (200), an oxygen flow path (300), a merged flow path (400) and a controller (500); the electrolytic cell (100) is used for electrolyzing water to generate hydrogen and oxygen; a first end of the hydrogen flow path (200) is connected to the electrolytic cell (100) for hydrogen to flow in; a first end of the oxygen flow path (300) is connected to the electrolytic cell (100) for oxygen to flow in; a second end of the hydrogen flow path (200) is connected to a second end of the oxygen flow path (300); a first end of the merged flow path (400) is simultaneously connected to a second end of the hydrogen flow path (200) and a second end of the oxygen flow path (300); and a second end of the merged flow path (400) is used for leading out the mixed gas; The hydrogen flow path (200) and the oxygen flow path (300) both have flow regulating components, and the controller (500) is electrically connected to the flow regulating components of the hydrogen flow path (200) and the oxygen flow path (300) at the same time. The controller (500) can control the opening of the flow regulating components to adjust the mixing ratio of hydrogen and oxygen in the merged flow path (400).

2. An intelligent gas management and control system as claimed in claim 1, It is characterized in that The electrolytic cell (100) is connected to a water treatment tank (600), and the water treatment tank (600) is used to remove impurities and regulate water.

3. An intelligent gas management and control system as claimed in claim 1, It is characterized in that The intelligent gas management and control system (1000) further comprises a combustion furnace (800), and the second end of the merged flow path (400) is connected to the combustion furnace (800) and provides hydrogen-oxygen mixed gas to the combustion furnace (800).

4. An intelligent gas management and control system as claimed in claim 3, It is characterized in that The merging flow path (400) is provided with a first anti-flashback valve (410), and the first anti-flashback valve (410) is electrically connected to the controller (500).

5. An intelligent gas management and control system as claimed in claim 1, It is characterized in that The hydrogen flow path (200) is connected to a water-hydrogen separator (210), a hydrogen purifier (220) and a hydrogen booster pump (230) in sequence from the first end to the second end; the oxygen flow path (300) is connected to a water-oxygen separator (310), an oxygen purifier (320) and an oxygen booster pump (330) in sequence from the first end to the second end.

6. An intelligent gas management and control system as claimed in claim 5, It is characterized in that The hydrogen flow path (200) is further connected to a hydrogen tank (240), and the oxygen flow path (300) is further connected to an oxygen tank (340); the hydrogen tank (240) and the oxygen tank (340) are respectively used to store hydrogen and oxygen generated by electrolysis.

7. An intelligent gas management and control system as claimed in claim 5, It is characterized in that A check valve (701) is provided at the second end of the hydrogen flow path (200) and / or the second end of the oxygen flow path (300), and the check valve (701) allows one-way flow in a direction toward the merged flow path (400).

8. An intelligent gas management and control system as claimed in claim 5, It is characterized in that A second anti-flashback valve (703) is provided at the second end of the hydrogen flow path (200) and / or the second end of the oxygen flow path (300).

9. An intelligent gas management and control system as claimed in claim 1, It is characterized in that At least one pressure gauge (702) is provided on each of the hydrogen flow path (200) and the oxygen flow path (300), and each of the pressure gauges (702) is electrically connected to the controller (500). The controller (500) can control the ratio of hydrogen and oxygen in the merged flow path (400) according to the pressure of the pressure gauge (702).

10. An intelligent gas management and control system as claimed in claim 1, It is characterized in that The controller (500) is electrically connected to a large scheduling screen (900), and the large scheduling screen (900) is capable of displaying the gas pressure of the hydrogen flow path (200) and / or the gas pressure of the oxygen flow path (300) and / or the gas flow rate of the merged flow path (400).

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