A dew point analysis system for PEM hydrogen production and purification

Abstract

The present invention provides a dew point analysis system for PEM hydrogen production and purification, which includes: a central control processing unit; a PEM hydrogen production and purification device to be analyzed for performance; a first dew point detection unit; and at least one second dew point detection unit, wherein a dew point interface is provided at least one place between two adjacent electrolyzers, water vapor separators, cooling modules, and purification modules, and the second dew point detection unit is connected to the dew point interface, and the second dew point detection unit is connected to the second dew point detection unit by wired connection or wireless connection; the second dew point detection unit can detect the analysis parameters of the dew point interface, and the second dew point detection unit converts the detected analysis parameters into signals and transmits them to the central control processing unit, and the central control processing unit analyzes and obtains the analysis parameters of the components of the PEM hydrogen production and purification device. By providing at least one second dew point detection unit and combining the dew point interface, the present invention is more accurate and effective in analyzing component parameters.

Description

Technical Field

[0001] The invention relates to a dew point analysis system for PEM hydrogen production and purification. Background Art

[0002] At present, hydrogen energy is highly expected as a clean and efficient energy carrier. Hydrogen is widely used in chemical industry, electronics, scientific research, energy, special sintering, inspection and quarantine, generator cooling and other fields.

[0003] In the process of PEM industrial hydrogen production and purification, the electrolyzer, water vapor separator, cooling module and purification module components in the existing PEM hydrogen production and purification device are used. After the decomposition, filtration and adsorption of the aforementioned components, the hydrogen obtained at the end usually needs to be detected. In the prior art, the detection is performed by the first dew point detection unit set on the rear side pipeline of the purification module. However, the inventors found that it is difficult to accurately judge the analysis parameters of the components in the existing PEM hydrogen production and purification device by only detecting the detection value at one place. The existing structure is also unable to compare and analyze the analysis parameters of the components involved in the hydrogen production and purification path, so it is even more impossible to effectively select components with ideal cost performance for hydrogen production and purification.

[0004] To this end, the present invention provides a dew point analysis system for PEM hydrogen production and purification. Summary of the invention

[0005] In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide a water vapor separator and a hydrogen production equipment thereof, which can accurately judge the analysis parameters of the components of the hydrogen production and purification device in the existing PEM hydrogen production and purification path for comparative analysis, and has the characteristics of more accurate and more effective component performance analysis.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A dew point analysis system for PEM hydrogen production and purification, comprising:

[0008] A central control processing unit; a PEM hydrogen production and purification device to be analyzed for performance, the components of which include an electrolyzer on the input side, a water vapor separator, a cooling module and a purification module, wherein the electrolyzer, the water vapor separator, the cooling module and the purification module are adjacently connected to each other through pipelines;

[0009] A first dew point detection unit, which is arranged on the pipeline at the output side of the purification module, and the first dew point detection unit is connected to the central control processing unit through a wire;

[0010] Also includes the following components:

[0011] at least one second dew point detection unit, wherein at least one of the electrolytic cell, the water vapor separator, the cooling module and the purification module adjacent to each other is provided with a dew point interface, the second dew point detection unit is connected to the dew point interface, and the second dew point detection unit is connected to the second dew point detection unit by wired connection or wireless connection;

[0012] The second dew point detection unit can detect the analysis parameters of the dew point interface. The second dew point detection unit converts the detected analysis parameters into signals and transmits them to the central control processing unit. After processing, the central control processing unit can timely analyze and understand the analysis parameters of the components of the PEM hydrogen production and purification device.

[0013] The dew point analysis system for PEM hydrogen production and purification is special in that both the first dew point detection unit and the second dew point detection unit are dew point analyzers, and when there is one dew point interface, the dew point interface is arranged between the electrolyzer and the water vapor separator;

[0014] The dew point interface is connected to the dew point analyzer through a pipeline, and the dew point analyzer is connected to the central control processing unit through a wire;

[0015] The dew point analyzer detects that the analysis parameter of the dew point interface is the dew point temperature value. The dew point analyzer converts the detected dew point temperature value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can timely analyze and understand the analysis parameters of the electrolytic cell.

[0016] The dew point analysis system for PEM hydrogen production and purification is special in that the first dew point detection unit and the second dew point detection unit are both dew point analyzers, and when there are two dew point interfaces, one of the dew point interfaces is arranged between the electrolyzer and the water vapor separator, and the other dew point interface is arranged between the water vapor separator and the cooling module;

[0017] The two dew point interfaces are respectively connected to a dew point analyzer through pipelines, and the dew point analyzer is connected to the central control processing unit through wires;

[0018] The dew point analyzer detects that the analysis parameter of the dew point interface is the dew point temperature value. The dew point analyzer converts the detected dew point temperature value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can timely analyze and understand the analysis parameters of the electrolytic cell and / or the water vapor separator.

[0019] The dew point analysis system for PEM hydrogen production and purification is special in that the first dew point detection unit and the second dew point detection unit are both dew point analyzers, and when there are three dew point interfaces, the first dew point interface is arranged between the electrolyzer and the water vapor separator, the second dew point interface is arranged between the water vapor separator and the cooling module, and the third dew point interface is arranged between the cooling module and the purification module;

[0020] The three dew point interfaces are respectively connected to a dew point analyzer through pipelines, and the dew point analyzer is connected to the central control processing unit through wires;

[0021] The dew point analyzer detects that the analysis parameter of the dew point interface is the dew point temperature value. The dew point analyzer converts the detected dew point temperature value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can timely analyze and understand the analysis parameters of at least one component in the electrolytic cell, the water vapor separator, the cooling module or the purification module.

[0022] The dew point analysis system for PEM hydrogen production and purification is special in that both the first dew point detection unit and the second dew point detection unit are hydrogen detectors, and when there is one dew point interface, the dew point interface is arranged between the electrolyzer and the water vapor separator;

[0023] The hydrogen detector is connected to the dew point interface through a pipeline. The hydrogen detector converts the detected hydrogen content value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can timely analyze and understand the analysis parameters of the electrolyzer.

[0024] The dew point analysis system for PEM hydrogen production and purification is special in that the first dew point detection unit and the second dew point detection unit are both hydrogen detectors, and when there are two dew point interfaces, one of the dew point interfaces is arranged between the electrolyzer and the water vapor separator, and the other dew point interface is arranged between the water vapor separator and the cooling module;

[0025] The two dew point interfaces are respectively connected to a hydrogen detector through pipelines, and the hydrogen detector is connected to the central control processing unit through wires;

[0026] The hydrogen detector detects that the analysis parameter of the dew point interface is the hydrogen content value. The hydrogen detector converts the detected hydrogen content value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can timely analyze and understand the analysis parameters of the electrolyzer and / or the water vapor separator.

[0027] The dew point analysis system for PEM hydrogen production and purification is special in that the first dew point detection unit and the second dew point detection unit are both hydrogen detectors, and when there are three dew point interfaces, the first dew point interface is arranged between the electrolyzer and the water vapor separator, the second dew point interface is arranged between the water vapor separator and the cooling module, and the third dew point interface is arranged between the cooling module and the purification module;

[0028] The three dew point interfaces are respectively connected to a hydrogen detector through pipelines, and the hydrogen detector is connected to the central control processing unit through wires;

[0029] The hydrogen detector detects that the analysis parameter of the dew point interface is the hydrogen content value. The hydrogen detector converts the detected hydrogen content value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can timely analyze and understand the analysis parameters of at least one component in the electrolyzer, the water vapor separator, the cooling module or the purification module.

[0030] The dew point analysis system for PEM hydrogen production and purification is special in that the cooling module includes at least a first cooler, a second cooler and two solenoid valves, the first cooler is arranged between the water vapor separator and the purification module through the first solenoid valve, and the second cooler is arranged in parallel between the first cooler and the first solenoid valve through the second solenoid valve; the two solenoid valves are electrically connected to the central control processing unit respectively.

[0031] The dew point analysis system for PEM hydrogen production and purification is special in that the purification module includes at least two purifiers, and the two purifiers are arranged in parallel on the pipeline on the rear side of the cooling module.

[0032] The dew point analysis system for PEM hydrogen production and purification is special in that the first dew point detection unit and the second dew point detection unit are dew point detection sensors, the detection ends of the dew point detection sensors are connected to the dew point interface through a pipeline, the dew point detection sensors can detect the dew point temperature value at the dew point interface, and the signal transmission end of the dew point detection sensor is connected to the central control processing unit through a wired connection or wirelessly.

[0033] As described above, the present invention relates to a dew point analysis system for PEM hydrogen production and purification, which has the following features:

[0034] Beneficial effects:

[0035] After utilizing the above-mentioned dew point analysis system for PEM hydrogen production and purification, compared with the prior art, due to the adoption of such a structure, at least one second dew point detection unit is set, and a dew point interface is set in at least one place between the electrolyzer, the water vapor separator, the cooling module and the purification module adjacent to each other. Compared with the prior technical solution of only setting the first dew point detection unit for detection, the present invention application can accurately determine the analysis parameters of the components of the hydrogen production and purification device in the existing PEM hydrogen production and purification path for comparative analysis, so as to effectively select components with ideal cost performance for hydrogen production and purification. Therefore, the solution of the present invention is more accurate and effective in analyzing the performance of components.

[0036] The present invention will be further described below in conjunction with specific implementation modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0038] Figure 1 It is a structural schematic diagram of the first or fourth specific implementation manner of the dew point analysis system for PEM hydrogen production and purification of the present invention, wherein the first dew point detection unit and the second dew point detection unit are both dew point analyzers; or, the first dew point detection unit and the second dew point detection unit are both hydrogen analyzers;

[0039] Figure 2 It is a structural schematic diagram of the second or fifth specific implementation of the dew point analysis system for PEM hydrogen production and purification of the present invention, wherein the first dew point detection unit and the second dew point detection unit are both dew point analyzers; or, the first dew point detection unit and the second dew point detection unit are both hydrogen analyzers;

[0040] Figure 3 It is a structural schematic diagram of the third or sixth specific implementation manner of the dew point analysis system for PEM hydrogen production and purification of the present invention, wherein the first dew point detection unit and the second dew point detection unit are both dew point analyzers; or, the first dew point detection unit and the second dew point detection unit are both hydrogen analyzers;

[0041] Figure 4 It is a structural schematic diagram of a seventh specific embodiment of the dew point analysis system for PEM hydrogen production and purification of the present invention, wherein the first dew point detection unit and the second dew point detection unit are both dew point detection sensors, and there is only one dew point interface and the dew point detection sensor is connected to the central control processing unit by wire;

[0042] Figure 5It is a structural schematic diagram of the seventh specific implementation mode of the dew point analysis system for PEM hydrogen production and purification of the present invention, wherein the first dew point detection unit and the second dew point detection unit are both dew point detection sensors, and there are three dew point interfaces and the dew point detection sensors are wirelessly connected to the central control processing unit. DETAILED DESCRIPTION

[0043] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0044] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects that the present invention can produce and the purposes that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantial changes in the technical content. The specific structure can be described with reference to the drawings of the patent application.

[0045] In the following embodiments, the left side of the paper is the left direction, the right side of the paper is the right direction, the upper side of the paper is the upper direction, the lower side of the paper is the lower direction, the front side perpendicular to the paper is the front direction, and the rear side perpendicular to the paper is the rear direction.

[0046] The present invention provides a dew point analysis system for PEM hydrogen production and purification, which can be specifically referred to Figures 1 to 5 As shown, the structure of the dew point analysis system for PEM hydrogen production and purification of the present invention is explained.

[0047] A dew point analysis system for PEM hydrogen production and purification of the present invention comprises:

[0048] Central control processing unit 1;

[0049] The PEM hydrogen production and purification device 2 to be analyzed for performance includes an electrolyzer 20 on the input side, a water vapor separator 21, a cooling module 22, and a purification module 23. The electrolyzer 20, the water vapor separator 21, the cooling module 22, and the purification module 23 are adjacent to each other and are connected to each other through pipelines (not shown in the figure, and are the same below);

[0050] A first dew point detection unit 3, which is arranged on the pipeline at the output side of the purification module 23, and the first dew point detection unit 3 is connected to the central control processing unit 1 through a wire;

[0051] Also includes the following components:

[0052] At least one second dew point detection unit 4, wherein at least one of the electrolytic cell 20, the water vapor separator 21, the cooling module 22 and the purification module 23 is adjacent to each other and is provided with a dew point interface 2a, wherein the second dew point detection unit 4 is connected to the dew point interface 2a, and the second dew point detection unit 4 is connected to the second dew point detection unit 4 by wired connection or wireless connection;

[0053] The second dew point detection unit 4 can detect the analysis parameters of the dew point interface 2a. The second dew point detection unit 4 converts the detected analysis parameters into signals and transmits them to the central control processing unit 1. After processing, the central control processing unit 1 can timely analyze and understand the analysis parameters of the components of the PEM hydrogen production and purification device 2.

[0054] It should be noted that, for the above-mentioned first dew point detection unit 3, second dew point detection unit 4, and the number of dew point interfaces 2a, the present invention application provides the following specific implementation methods to achieve the technical problems to be solved and the technical effects to be achieved by the present invention, and the central control processing unit 1 of the present invention application can select a PLC control processor, as shown below. The user can indirectly know the performance of the components of the PEM hydrogen production and purification device 2 through the above-mentioned analysis parameters, which helps to select components with better cost performance for use.

[0055] First specific embodiment

[0056] Combination Figure 1 As shown, in this embodiment, the first dew point detection unit 3 and the second dew point detection unit 4 are both dew point analyzers 4b, and when there is one dew point interface 2a, the dew point interface 2a is arranged between the electrolytic cell 20 and the water vapor separator 21;

[0057] The dew point interface 2a is connected to the dew point analyzer 4b through a pipeline, and the dew point analyzer 4b is connected to the central control processing unit 1 through a wire;

[0058] The dew point analyzer 4b detects that the analysis parameter of the dew point interface 2a is the dew point temperature value. The dew point analyzer 4b converts the detected dew point temperature value into a signal and transmits it to the central control processing unit 1. After processing, the central control processing unit 1 can timely analyze and understand the analysis parameters of the electrolytic cell 20.

[0059] Second specific embodiment

[0060] Combination Figure 2 As shown, in this embodiment, the first dew point detection unit 3 and the second dew point detection unit 4 are both dew point analyzers 4b, and when there are two dew point interfaces 2a, one of the dew point interfaces 2a is arranged between the electrolytic cell 20 and the water vapor separator 21, and the other dew point interface 2a is arranged between the water vapor separator 21 and the cooling module 22;

[0061] The two dew point interfaces 2a are respectively connected to the dew point analyzer 4b through pipelines, and the dew point analyzer 4b is connected to the central control processing unit 1 through wires;

[0062] The dew point analyzer 4b detects that the analysis parameter of the dew point interface 2a is the dew point temperature value. The dew point analyzer 4b converts the detected dew point temperature value into a signal and transmits it to the central control processing unit 1. After processing, the central control processing unit can timely analyze and understand the analysis parameters of the electrolytic cell 20 and / or the water vapor separator 21.

[0063] The third specific embodiment

[0064] Combination Figure 3 As shown, in this embodiment, the first dew point detection unit 3 and the second dew point detection unit 4 are both dew point analyzers 4b, and when there are three dew point interfaces 2a, the first dew point interface 2a is arranged between the electrolyzer 20 and the water vapor separator 21, the second dew point interface 2a is arranged between the water vapor separator 21 and the cooling module 22, and the third dew point interface 2a is arranged between the cooling module 22 and the purification module 23;

[0065] The three dew point interfaces 2a are respectively connected to the dew point analyzer 4b through pipelines, and the dew point analyzer 4b is connected to the central control processing unit 1 through wires;

[0066] The dew point analyzer 4b detects that the analysis parameter of the dew point interface 2a is the dew point temperature value. The dew point analyzer 4b converts the detected dew point temperature value into a signal and transmits it to the central control processing unit 1. After processing, the central control processing unit 1 can timely analyze and understand the analysis parameters of at least one component in the electrolytic cell 20, the water vapor separator 21, the cooling module 22, or the purification module 23.

[0067] Fourth specific embodiment

[0068] Combination Figure 1As shown, in this embodiment, the first dew point detection unit 3 and the second dew point detection unit 4 are both hydrogen detectors 4c, and when there is one dew point interface 2a, the dew point interface 2a is arranged between the electrolyzer 20 and the water vapor separator 21;

[0069] The hydrogen detector 4c is connected to the dew point interface 2a through a pipeline. The hydrogen detector 4c converts the detected hydrogen content value into a signal and transmits it to the central control processing unit 1. After processing, the central control processing unit 1 can timely analyze and understand the analysis parameters of the electrolytic cell 20.

[0070] Fifth specific embodiment

[0071] Combination Figure 2 As shown, in this embodiment, the first dew point detection unit 3 and the second dew point detection unit 4 are both hydrogen detectors 4c, and when there are two dew point interfaces 2a, one of the dew point interfaces 2a is arranged between the electrolyzer 20 and the water vapor separator 21, and the other dew point interface 2a is arranged between the water vapor separator 21 and the cooling module 22;

[0072] The two dew point interfaces 2a are respectively connected to the hydrogen detector 4c through pipelines, and the hydrogen detector 4c is connected to the central control processing unit 1 through wires;

[0073] The hydrogen detector 4c detects that the analysis parameter of the dew point interface 2a is the hydrogen content value. The hydrogen detector 4c converts the detected hydrogen content value into a signal and transmits it to the central control processing unit 1. After processing, the central control processing unit 1 can timely analyze and understand the analysis parameters of the electrolytic cell 20 and / or the water vapor separator 21.

[0074] Sixth specific embodiment

[0075] Combination Figure 3 As shown, in this embodiment, the first dew point detection unit 3 and the second dew point detection unit 4 are both hydrogen detectors 4c, and when there are three dew point interfaces 2a, the first dew point interface 2a is arranged between the electrolyzer 20 and the water vapor separator 21, the second dew point interface 2a is arranged between the water vapor separator 21 and the cooling module 22, and the third dew point interface 2a is arranged between the cooling module 22 and the purification module 23;

[0076] The three dew point interfaces 2a are respectively connected to the hydrogen detector 4c through pipelines, and the hydrogen detector 4c is connected to the central control processing unit 1 through wires;

[0077] The hydrogen detector 4c detects that the analysis parameter of the dew point interface 2a is the hydrogen content value. The hydrogen detector 4c converts the detected hydrogen content value into a signal and transmits it to the central control processing unit 1. After processing, the central control processing unit 1 can timely analyze and understand the analysis parameters of at least one component in the electrolyzer 20 or the water vapor separator 21 or the cooling module 22 or the purification module 23.

[0078] Combination Figure 1 or Figure 2 or Figure 3 As shown, in this embodiment, the cooling module 22 at least includes a first cooler 220, a second cooler 221 and two solenoid valves 222, the first cooler 220 is arranged between the water vapor separator 21 and the purification module 23 through the first solenoid valve 222, and the second cooler 221 is arranged in parallel between the first cooler 220 and the first solenoid valve 222 through the second solenoid valve 222;

[0079] The two solenoid valves 222 are electrically connected to the central control processing unit 1. It should be noted that the first cooler 220 is a cold dryer, and the second cooler 221 is a hydrogen cooler. In order to better illustrate how the present invention solves the technical problem and achieves the technical effect, when explaining the technical solution of the present invention, specific component names are used for explanation.

[0080] Combination Figure 1 As shown, in this embodiment, the purification module 23 includes at least two purifiers 230 , and the two purifiers 230 are arranged in parallel on the pipeline at the rear side of the cooling module 22 .

[0081] Seventh specific embodiment

[0082] Please refer to Figure 4 and Figure 5As shown, it should be noted that the difference from the first specific embodiment mentioned above is that the dew point detection sensor 4d replaces the dew point analyzer 4b, and the number of dew point interfaces 2a is not specifically stated in this embodiment, so the number of dew point interfaces 2a can be selected with reference to the first, second, and third specific embodiments, that is, the number of dew point interfaces 2a can be set to 1, 2, or 3; the first dew point detection unit 3 and the second dew point detection unit 4 are dew point detection sensors, the detection end of the dew point detection sensor 4d is connected to the dew point interface 2a through a pipeline, the dew point detection sensor 4d can detect the dew point temperature value at the dew point interface 2a, and the signal transmission end of the dew point detection sensor 4d is connected to the central control processing unit 1 through a wired connection or a wireless connection. It can be understood that the aforementioned dew point detection sensor 4d is connected to the central control processing unit 1 by wireless, and the aforementioned wireless connection can be transmitted in the form of WiFi or similar to Bluetooth. Specifically, the first dew point detection unit and the second dew point detection unit are both dew point detection sensors, and there is one dew point interface and the dew point detection sensor is connected to the central control processing unit via a wire. Figure 4 ; The first dew point detection unit and the second dew point detection unit are both dew point detection sensors. There are three dew point interfaces and the dew point detection sensors are wirelessly connected to the central control processing unit. Please refer to Figure 5 In addition, the relevant contents of the technical solution of setting the aforementioned dew point interface 2a to two will not be repeated here, and the essential contents of the invention are equivalent to the aforementioned contents of the present invention.

[0083] It should be noted that the above-mentioned first dew point detection unit 3 and the second dew point detection unit 4 in the application of the present invention can also adopt a moisture content detector; in addition, the above-mentioned first dew point detection unit 3 and the second dew point detection unit 4 can also be a combination of any two, any three, or any more of a dew point detector, a moisture content detector, a hydrogen detector, and a dew point detection sensor.

[0084] The working principle of the present invention is as follows: First, in order to briefly explain the technical solution of the present invention, the first dew point detection unit 3 and the second dew point detection unit 4 are both dew point analyzers 4b, and the number of the dew point interfaces 2a is three as an example to illustrate the technical solution of the present invention; Figure 3As shown, the water vapor mixed gas containing hydrogen flowing out from the electrolytic cell 20 after electrolysis will be filtered by the water vapor separator 21, cooled by the cooling module 22 (cold dryer, hydrogen cooler), and adsorbed by the purification module 23 through the pipeline, and then flow out from the dew point analyzer 4b. Since the dew point analyzer 4b is provided with four reading points for reading the dew point temperature value, and the dew point analyzer 4b is respectively connected to the four dew point interfaces 2a through the pipeline, the dew point analyzer 4b can read the first dew point temperature value set between the electrolytic cell 20 and the water vapor separator 21. After knowing the first dew point temperature value, the water content in the water vapor mixed gas corresponding to the dew point temperature value can be obtained by looking up the table (see Table 1). For example, when the first dew point temperature value is 64°C, the water content of the water vapor mixed gas is 153.8 g / m 3 , and the aforementioned first dew point temperature value can be obtained multiple times at the same time, and then the value is converted into a signal by the dew point analyzer, and the signal is transmitted to the central control processing unit 1 and analyzed there, so that the analysis parameters of the electrolytic cell 20 can be obtained in time, or the analysis parameter scheme of another electrolytic cell 20 of different specifications can be used for comparison, so as to select the better electrolytic cell 20 for use;

[0085] Again, combined Figure 3 As shown, the dew point analyzer 4b can also read the second dew point temperature value set between the water vapor separator 21 and the cooling module 22. After knowing the second dew point temperature value, the water content in the water vapor mixed gas corresponding to the dew point temperature value can be obtained by looking up the table (see Table 1). For example, when the second dew point temperature value is 41°C, the water content of the water vapor mixed gas is 53.8 g / m 3 , and the aforementioned second dew point temperature value can be obtained multiple times at the same time, and then the value is converted into a signal by the dew point analyzer 4b, and the signal is transmitted to the central control processing unit 1 and analyzed there, so that the analysis parameters of the water vapor separator 21 can be obtained in time, or the analysis parameter scheme of another water vapor separator 21 of different specifications can be used for comparison, so as to select a better water vapor separator 21 for use;

[0086] Again, combined with Figure 3 As shown, the dew point analyzer 4b can also read the third dew point temperature value set between the cooling module 22 and the purification module 23. After knowing the third dew point temperature value, the water content in the water vapor mixed gas corresponding to the dew point temperature value can be obtained by looking up the table (refer to Table 1). For example, when the third dew point temperature value is -40°C, the water content of the water vapor mixed gas is 0.176 g / m 3, and the aforementioned third dew point temperature value can be obtained multiple times at the same time, and then the value is converted into a signal through the dew point analyzer 4b, and the signal is transmitted to the central control processing unit 1 and analyzed here, so that the analysis parameters of the cooling module can be obtained in time, or the analysis parameter scheme of another cooling module 22 of different specifications can be used for comparison to select a better cooling module 22 for use; it should be noted that the aforementioned cooling module 22 can use the first cooler 220 and the second cooler 220, that is, compare the cooling effect comparison scheme of the first cooler 220 and the second cooler 220, so that the user can choose a cooling module component with higher cost performance for use, which is optional;

[0087] Finally, combined Figure 3 As shown, the dew point analyzer 4b can also read the fourth dew point temperature value set after the purification module 23. After knowing the fourth dew point temperature value, the water content in the water vapor mixed gas corresponding to the dew point temperature value can be obtained by looking up the table (refer to Table 1). For example, when the third dew point temperature value is -65°C, the water content of the water vapor mixed gas is 0.011g / m 3 , and at the same time, the aforementioned fourth dew point temperature value can be obtained multiple times, and then the value is converted into a signal through the dew point analyzer 4b, and the signal is transmitted to the central control processing unit 1 and analyzed there, so that the analysis parameters of the purification module 23 can be obtained in time, or the analysis parameter scheme of another purification module 23 of different specifications can be used for comparison to select the better purification module 23 for use; it should be noted that the aforementioned purification module 23 chooses to use two purifiers 230 arranged in parallel in the application of the present invention, and purifiers 230 of different specifications can be selected for performance scheme comparison and analysis, or purifiers 230 of the same specifications can be used alternately.

[0088] The following is a chart showing the relationship between dew point temperature and water content. The chart is from Baidu Library:

[0089] Table 1:

[0090]

[0091] As described above, the dew point analysis system for PEM hydrogen production and purification according to the present invention has the following beneficial effects:

[0092] After utilizing the above-mentioned dew point analysis system for PEM hydrogen production and purification, compared with the prior art, due to the adoption of such a structure, at least one second dew point detection unit is set, and a dew point interface is set in at least one place between the electrolyzer, the water vapor separator, the cooling module and the purification module adjacent to each other. Compared with the prior technical solution of only setting the first dew point detection unit for detection, the present invention application can accurately determine the analysis parameters of the components of the hydrogen production and purification device in the existing PEM hydrogen production and purification path for comparative analysis, so as to effectively select components with ideal cost performance for hydrogen production and purification. Therefore, the solution of the present invention is more accurate and effective in analyzing the performance of components.

[0093] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0094] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A dew point analysis system for PEM hydrogen production and purification, comprising: Central control processing unit; The PEM hydrogen production and purification device to be analyzed for performance comprises an electrolyzer on the input side, a water vapor separator, a cooling module and a purification module, wherein the electrolyzer, the water vapor separator, the cooling module and the purification module are adjacently connected to each other through pipelines; A first dew point detection unit, which is arranged on the pipeline at the output side of the purification module, and the first dew point detection unit is connected to the central control processing unit through a wire; It is characterized by also comprising the following components: at least one second dew point detection unit, wherein at least one of the electrolytic cell, the water vapor separator, the cooling module and the purification module adjacent to each other is provided with a dew point interface, the second dew point detection unit is connected to the dew point interface, and the second dew point detection unit is connected to the second dew point detection unit by wired connection or wireless connection; The second dew point detection unit can detect the analysis parameters of the dew point interface, and the second dew point detection unit converts the detected analysis parameters into signals and transmits them to the central control processing unit. After processing, the central control processing unit can analyze and understand the analysis parameters of the components of the PEM hydrogen production and purification device in real time; When the first dew point detection unit and the second dew point detection unit are both dew point analyzers, when there is one dew point interface, the dew point interface is arranged between the electrolytic cell and the water vapor separator; The dew point interface is connected to the dew point analyzer through a pipeline, and the dew point analyzer is connected to the central control processing unit through a wire; The dew point analyzer detects that the analysis parameter of the dew point interface is the dew point temperature value. The dew point analyzer converts the detected dew point temperature value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can analyze and understand the analysis parameters of the electrolytic cell in real time; or When the first dew point detection unit and the second dew point detection unit are both hydrogen detectors, when there is one dew point interface, the dew point interface is arranged between the electrolyzer and the water vapor separator; The hydrogen detector is connected to the dew point interface through a pipeline, and the hydrogen detector converts the detected hydrogen content value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can analyze and understand the analysis parameters of the electrolyzer in real time; or When the first dew point detection unit and the second dew point detection unit are both dew point analyzers, when there are two dew point interfaces, one of the dew point interfaces is arranged between the electrolytic cell and the water vapor separator, and the other dew point interface is arranged between the water vapor separator and the cooling module; The two dew point interfaces are respectively connected to a dew point analyzer through pipelines, and the dew point analyzer is connected to the central control processing unit through wires; The dew point analyzer detects that the analysis parameter of the dew point interface is a dew point temperature value, and the dew point analyzer converts the detected dew point temperature value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can analyze and understand the analysis parameters of the electrolytic cell and / or the water vapor separator in real time; or When the first dew point detection unit and the second dew point detection unit are both dew point analyzers, when there are three dew point interfaces, the first dew point interface is arranged between the electrolyzer and the water vapor separator, the second dew point interface is arranged between the water vapor separator and the cooling module, and the third dew point interface is arranged between the cooling module and the purification module; The three dew point interfaces are respectively connected to a dew point analyzer through pipelines, and the dew point analyzer is connected to the central control processing unit through wires; The dew point analyzer detects that the analysis parameter of the dew point interface is the dew point temperature value. The dew point analyzer converts the detected dew point temperature value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can analyze and understand the analysis parameters of at least one component in the electrolytic cell, the water vapor separator, the cooling module or the purification module in real time.

2. The dew point analysis system for PEM hydrogen production and purification according to claim 1, characterized in that: The first dew point detection unit and the second dew point detection unit are both hydrogen detectors. When there are two dew point interfaces, one of the dew point interfaces is arranged between the electrolyzer and the water vapor separator, and the other dew point interface is arranged between the water vapor separator and the cooling module; The two dew point interfaces are respectively connected to a hydrogen detector through pipelines, and the hydrogen detector is connected to the central control processing unit through wires; The hydrogen detector detects that the analysis parameter of the dew point interface is the hydrogen content value. The hydrogen detector converts the detected hydrogen content value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can analyze and understand the analysis parameters of the electrolyzer and / or the water vapor separator in real time.

3. The dew point analysis system for PEM hydrogen production and purification according to claim 1, characterized in that: The first dew point detection unit and the second dew point detection unit are both hydrogen detectors. When there are three dew point interfaces, the first dew point interface is arranged between the electrolyzer and the water vapor separator, the second dew point interface is arranged between the water vapor separator and the cooling module, and the third dew point interface is arranged between the cooling module and the purification module; The three dew point interfaces are respectively connected to a hydrogen detector through pipelines, and the hydrogen detector is connected to the central control processing unit through wires; The hydrogen detector detects that the analysis parameter of the dew point interface is the hydrogen content value. The hydrogen detector converts the detected hydrogen content value into a signal and transmits it to the central control processing unit. After processing, the central control processing unit can analyze and understand the analysis parameters of at least one component in the electrolyzer, the water vapor separator, the cooling module or the purification module in real time.

4. The dew point analysis system for PEM hydrogen production and purification according to claim 2 or 3, characterized in that: The cooling module at least comprises a first cooler, a second cooler and two solenoid valves, wherein the first cooler is arranged between the water vapor separator and the purification module through the first solenoid valve, and the second cooler is arranged in parallel between the first cooler and the first solenoid valve through the second solenoid valve; The two solenoid valves are electrically connected to the central control processing unit respectively.

5. The dew point analysis system for PEM hydrogen production and purification according to claim 2 or 3, characterized in that: The purification module comprises at least two purifiers, and the two purifiers are arranged in parallel on the pipeline at the rear side of the cooling module.

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