Hydrogen impurity detection equipment for hydrogen fuel cell

Abstract

The invention provides hydrogen fuel cell hydrogen impurity detection equipment which comprises a detection equipment box, two supporting sleeve rods are fixedly arranged on one side of the top end of the detection equipment box, the positions of the supporting sleeve rods on the two sides are symmetrically arranged, and the outer end faces of the supporting sleeve rods on the two sides are rotationally connected with a turnover sealing turnover cover. And a detection cavity with an upward opening is formed in the detection equipment box. According to the invention, an electrochemical detector and a chromatographic instrument detector are combined, the concentration of hydrogen and the content of impurities in the hydrogen can be accurately measured, comprehensive detection data can be provided, and intelligent control of equipment can be realized through a control chip and a man-machine control panel which are arranged in a chip control room; all the parts are clear in function and independent from one another, and assembling, debugging and maintaining of equipment are facilitated. Meanwhile, the expandability and the flexibility of the equipment are improved through the modular design, and customization and upgrading can be conveniently carried out according to actual requirements.

Description

Technical Field

[0001] This invention relates to the field of hydrogen fuel cell technology, specifically to a hydrogen impurity detection device for hydrogen fuel cells. Background Technology

[0002] With the ongoing transformation of the global energy structure and the increasing awareness of environmental protection, hydrogen energy, as a highly efficient and clean energy carrier, is receiving more and more attention. Hydrogen fuel cells, as an important application of hydrogen energy, are directly affected by the purity of hydrogen.

[0003] In hydrogen fuel cell systems, impurities in hydrogen (such as oxygen, nitrogen, carbon dioxide, and moisture) can lead to catalyst poisoning, performance degradation, or even system failure. Therefore, rapid and accurate detection of impurity content in hydrogen is of paramount importance. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a hydrogen impurity detection device for hydrogen fuel cells, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a hydrogen fuel cell hydrogen impurity detection device, comprising a detection device box, two support rods fixedly mounted on one side of the top of the detection device box, the support rods on both sides being symmetrically positioned, and a flip-up closed cover rotatably connected to the outer end face of the support rods on both sides; a detection chamber with an upward opening is provided inside the detection device box, a protective observation cover that can be raised and lowered is provided inside the detection chamber, a hydraulic lifter is fixedly mounted at the bottom of the detection chamber, a hydraulic push rod that can be raised and lowered is provided inside the hydraulic lifter, a support plate is fixedly connected to the top of the hydraulic push rod, an extractor is fixedly mounted inside the support plate, a hydrogen concentration sampler is fixedly mounted at the center of the extractor, and a protective chamber is provided inside the protective observation cover, the protective chamber enclosing the hydrogen concentration sampler inside.

[0008] Preferably, two lifting slide rails are fixedly provided on both sides of the inner wall of the detection cavity. The lifting slide rails on both sides are symmetrically arranged. Lifting shafts that can move up and down are provided in the lifting slide rails on both sides. Threaded shafts are rotatably provided at the bottom of the lifting slide rails on both sides. The threaded shafts are threadedly connected to the lifting shafts.

[0009] Preferably, a lifting connecting plate is fixedly connected to the top of the lifting shaft, the lifting connecting plates on both sides are fixedly connected to the outer end face of the protective observation cover, a lifting motor is fixedly installed inside the lower wall of the lifting slide rail, and the lower end of the threaded shaft is poweredly connected to the lifting motor.

[0010] Preferably, a power switch is provided at the front end of the testing equipment box, and several arrays of handheld grooves are provided below the front end of the testing equipment box. An arc-shaped testing strip is fixedly provided on the inner wall of the testing cavity near the power switch.

[0011] Preferably, the side support plate of the cross frame is fixedly provided on the side of the detection equipment box, and a protective plate is fixedly provided on the top side of the side support plate. A sampling tube is connected to the side of the extractor. The sampling tube passes through the bottom of the detection equipment box and through the protective plate to achieve a protective effect.

[0012] Preferably, two vertically erected gas-liquid processors are fixedly installed on one side of the top of the side support plate, the sampling tube inside the protective plate is connected to the bottom of the gas-liquid processor on one side, and a flow regulator is provided between the tops of the gas-liquid processors on both sides.

[0013] Preferably, a heat insulation plate is fixedly provided on one side of the side support plate, and a transverse protective conduit is filled in the heat insulation plate. One end of the protective conduit is connected to the bottom of the electrochemical detector on one side.

[0014] Preferably, an electrochemical detector is provided on one side of the top of the side support plate. The electrochemical detector is fixedly connected to the side of the detection equipment box. A connecting pipe is provided at the bottom of the electrochemical detector, and the connecting pipe is connected to the other end of the protective conduit.

[0015] Preferably, the electrochemical detector is equipped with a measurement display screen at its front end for displaying the detection results inside the electrochemical detector, and a transmission pipe is connected to the top of the electrochemical detector.

[0016] Preferably, a chromatograph detector is installed on the side of the detection equipment box and on the side of the electrochemical detector. The top of the chromatograph detector is connected to the transmission pipeline, and the bottom of the chromatograph detector is connected to an emission pipe.

[0017] Preferably, a chip control chamber is fixedly provided on the back of the detection equipment box, a control chip is placed inside the chip control chamber, and a human-machine control board is provided at the front of the chip control chamber to facilitate human-machine interaction.

[0018] (III) Beneficial Effects

[0019] This invention provides a hydrogen impurity detection device for hydrogen fuel cells. It has the following beneficial effects:

[0020] 1. This invention, through its built-in gas dryer and gas temperature controller, can dry and regulate the temperature of the sampled gas, eliminating the influence of moisture and temperature fluctuations on the test results and improving the accuracy of the test.

[0021] 2. This invention uses a wind tunnel-type hydrogen fuel cell environmental chamber hydrogen concentration sampler, which can accurately sample the hydrogen concentration of the hydrogen fuel cell. Combined with an electrochemical detector and a chromatograph detector, it can accurately measure the concentration of hydrogen and the content of impurities, providing comprehensive detection data. Through the chip control room's built-in control chip and human-machine control board, the equipment can achieve intelligent control.

[0022] 3. This invention adopts a modular design, with each component having a clearly defined function and operating independently, facilitating equipment assembly, debugging, and maintenance. Simultaneously, the modular design enhances the equipment's scalability and flexibility, allowing for customization and upgrades based on actual needs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0024] Figure 2 This is a front view of the external structure of the present invention;

[0025] Figure 3 This is a side view of the external structure of the present invention;

[0026] Figure 4 For the present invention Figure 2 A cross-sectional view along the AA direction;

[0027] Figure 5 This is a schematic diagram of the internal structure of the present invention;

[0028] Figure 6 This is a top view of the internal structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 A cross-sectional view along the BB direction.

[0030] In the diagram: 101. Detection equipment box; 102. Supporting sleeve; 103. Sealing flip cover; 104. Protective observation cover; 105. Lifting slide rail; 106. Detection chamber; 107. Power switch; 108. Handheld groove; 109. Gas-liquid processor; 111. Side support plate; 112. Flow controller; 113. Connecting pipe; 114. Discharge pipe; 115. Measurement display screen; 116. Electrochemical detector; 117. Chromatography detector; 118. 119. Transmission pipe; 120. Protective plate; 121. Protective chamber; 122. Hydrogen concentration sampler; 123. Extractor; 124. Support plate; 125. Detection strip; 126. Sampling tube; 127. Hydraulic lifter; 128. Hydraulic push rod; 129. Human-machine control panel; 130. Chip control chamber; 131. Heat insulation plate; 132. Protective conduit; 133. Lifting motor; 134. Threaded shaft; 135. Lifting shaft; 136. Lifting connecting plate. Detailed Implementation

[0031] This invention provides a hydrogen impurity detection device for hydrogen fuel cells, such as... Figure 1-7 As shown, the device includes a detection equipment box 101. Two support sleeves 102 are fixedly installed on one side of the top of the detection equipment box 101. The support sleeves 102 on both sides are symmetrically arranged. The outer end faces of the support sleeves 102 on both sides are rotatably connected to a flip-up closed cover 103. The detection equipment box 101 has an upward-opening detection chamber 106. The detection chamber 106 has a protective observation cover 104 that can be raised and lowered. The bottom of the detection chamber 106 is fixedly installed with a hydraulic lifter 127. The hydraulic lifter 127 has a hydraulic push rod 128 that can be raised and lowered. The top of the hydraulic push rod 128 is fixedly connected with a support plate 123. The support plate 123 has an extractor 122 fixedly installed. The center of the extractor 122 has a hydrogen concentration sampler 121 fixedly installed. The protective observation cover 104 has a protective chamber 120 that covers the hydrogen concentration sampler 121 inside.

[0032] It should be further noted that the protective observation cover 104 is made of transparent glass material, which facilitates observation by staff. When the hydraulic lift 127 is started, it can drive the hydraulic push rod 128 to move up and down.

[0033] It is worth further explaining that the hydrogen concentration sampler 121 is used to insert the hydrogen fuel cell to be tested. After the head of the hydrogen fuel cell chamber is aligned with the bottom of the hydrogen concentration sampler 121, the hydrogen concentration sampler 121 adopts the hydrogen concentration sampler of the wind tunnel type hydrogen fuel cell environmental chamber.

[0034] Furthermore, two lifting slide rails 105 are fixedly provided on both sides of the inner wall of the detection cavity 106. The lifting slide rails 105 on both sides are symmetrically arranged. Lifting shafts 135 that can be lifted and moved are provided in the lifting slide rails 105 on both sides. Threaded shafts 134 are rotatably provided at the bottom of the lifting slide rails 105 on both sides. The threaded shafts 134 are threadedly connected to the lifting shafts 135.

[0035] Furthermore, a lifting connecting plate 136 is fixedly connected to the top of the lifting shaft 135, and the lifting connecting plates 136 on both sides are fixedly connected to the outer end face of the protective observation cover 104. A lifting motor 133 is fixedly installed inside the lower wall of the lifting slide rail 105, and the lower end of the threaded shaft 134 is poweredly connected to the lifting motor 133.

[0036] It should be further explained that when the lifting motor 133 starts, it can drive the threaded shaft 134 to rotate, and then the threaded shaft 134 is threadedly connected to the lifting shaft 135, driving the lifting shaft 135 to move up and down, and through the lifting connecting plates 136 on both sides, it drives the protective observation cover 104 to move up and down.

[0037] Furthermore, a power switch 107 is provided at the front end of the testing equipment box 101, and several arrays of handheld grooves 108 are provided below the front end of the testing equipment box 101. An arc-shaped testing strip 124 is fixedly provided on the inner wall of the testing cavity 106 near the power switch 107.

[0038] It should be further explained that the detection strip 124 is connected to the power switch 107 via signal, and the working status inside the detection chamber 106 is monitored through the detection strip 124, and then displayed through the power switch 107, which facilitates real-time on-site monitoring by the staff.

[0039] Furthermore, a side support plate 111 of a crossbeam is fixedly provided on the side of the testing equipment box 101, and a protective plate 119 is fixedly provided on one side of the top of the side support plate 111. A sampling tube 125 is connected to the side of the extractor 122. The sampling tube 125 passes through the bottom of the testing equipment box 101 and through the protective plate 119 to achieve a protective effect.

[0040] Furthermore, two vertically erected gas-liquid processors 109 are fixedly installed on one side of the top of the side support plate 111. The sampling tube 125 inside the protective plate 119 is connected to the bottom of the gas-liquid processor 109 on one side, and a flow regulator 112 is connected between the tops of the gas-liquid processors 109 on both sides.

[0041] It should be further explained that the flow controller 112 controls the flow rate of the sampled gas. One side of the gas-liquid processor 109 is a gas dryer, and the other side of the gas-liquid processor 109 is a gas temperature controller. When the sampled gas enters the gas-liquid processors 109 on both sides through the sampling tube 125, the flow controller 112 controls the flow rate of the gas and controls the sampled gas on one side to first undergo a drying step before entering the gas-liquid processor 109 on the other side for temperature regulation.

[0042] Furthermore, a heat insulation plate 131 is fixedly installed on one side of the side support plate 111, and a transverse protective conduit 132 is filled in the heat insulation plate 131. One end of the protective conduit 132 is connected to the bottom of the electrochemical detector 116 on one side.

[0043] It should be further explained that the heat insulation board 131 is a heat insulation board, which can protect the gas flowing through the protective conduit 132 and achieve a stable temperature.

[0044] Furthermore, an electrochemical detector 116 is provided on one side of the top of the side support plate 111. The electrochemical detector 116 is fixedly connected to the side of the detection equipment box 101. A connecting pipe 113 is provided at the bottom of the electrochemical detector 116, and the connecting pipe 113 is connected to the other end of the protective conduit 132.

[0045] It should be further explained that the electrochemical detector 116 measures the hydrogen concentration and impurity content by detecting the electrochemical reaction between hydrogen and the electrode of the electrochemical detector 116.

[0046] Furthermore, a measurement display screen 115 is installed at the front end of the electrochemical detector 116 to display the detection results inside the electrochemical detector 116, and a transmission pipe 118 is connected to the top of the electrochemical detector 116.

[0047] Furthermore, a chromatograph detector 117 is installed on the side of the detection equipment box 101 and on the side of the electrochemical detector 116. The top of the chromatograph detector 117 is connected to the transmission pipe 118, and the bottom of the chromatograph detector 117 is connected to the discharge pipe 114.

[0048] It should be further explained that the hydrogen sample is injected into the chromatograph detector 117, and the separation characteristics of different gases in the chromatograph detector 117 are used to analyze the hydrogen and accurately determine the content of various impurities.

[0049] Furthermore, a chip control chamber 130 is fixedly provided on the back of the testing equipment box 101. The chip control chamber 130 contains a control chip, and a human-machine control board 129 is provided at the front of the chip control chamber 130 to facilitate human-machine interaction.

[0050] It should be further explained that each component in the testing equipment box 101 is connected to the control chip built into the chip control room 130, which is responsible for receiving, processing and sending various signals to ensure the normal operation of the equipment and accurate testing.

[0051] When using this solution, the operator first holds the hand-held groove 108 on the front of the testing equipment box 101 and moves it to the working position. After the testing equipment box 101 is placed stably on the workbench, the operator holds the closed flip cover 103 and opens it. After starting the entire device through the power switch 107, the operator controls the lifting motors 133 on both sides through the human-machine control panel 129 on the back. When the lifting motors 133 on both sides start, they drive the threaded shaft 134 to rotate. Since the threaded shaft 134 is threadedly connected to the lifting shaft 135, it can drive the lifting shaft 135 to move up and down. At this time, the lifting connecting plate 136 at the top of the lifting shaft 135 is fixedly connected to both sides of the outer end face of the protective observation cover 104, and then the lifting connecting plate 136 drives the protective observation cover 104 to move up and down.

[0052] As the protective observation cover 104 is raised, the hydraulic lifter 127 is activated, which in turn drives the hydraulic push rod 128 to rise and move, and drives the support plate 123 to rise and move. The operator can then insert the hydrogen fuel cell storage compartment to be tested face down into the hydrogen concentration sampler 121. Subsequently, the support plate 123 is reset, and at the same time, the lifting motor 133 reverses and drives the protective observation cover 104 to reset, thereby covering the protective chamber 120 inside the protective observation cover 104 above the hydrogen concentration sampler 121. At the same time, the top of the hydrogen concentration sampler 121 is stably attached to the top of the inner wall of the protective chamber 120, thereby reducing the entry of outside air and its impact on the test results. Then, the operator manually closes the sealing flip cover 103, providing a closed and safe environment for subsequent testing work and preventing interference from external factors that could affect the test results.

[0053] Subsequently, the hydrogen concentration sampler in the wind tunnel-type hydrogen fuel cell environmental chamber within the hydrogen concentration sampler 121 is activated, and hydrogen concentration is sampled from the hydrogen fuel cell to be tested inserted into the hydrogen concentration sampler 121. The sampled gas is then output through the sampling tube 125, first entering the gas-liquid processor 109 on one side, where moisture and other volatile impurities in the sampled gas are effectively removed to ensure the accuracy of subsequent testing. The dried gas then flows smoothly into the gas-liquid processor 109 on the other side, controlled by the flow regulator 112. The gas temperature is precisely adjusted to the set detection temperature to eliminate the influence of temperature fluctuations on the test results.

[0054] After drying and temperature regulation, the gas eventually flows into the electrochemical detector 116. In the electrochemical detector 116, the gas undergoes an electrochemical reaction with the electrode. This reaction can accurately measure the concentration of hydrogen and the content of impurities in it. At the same time, the detection results are displayed in real time on the measurement display screen 115, allowing the staff to quickly understand the hydrogen quality status of the hydrogen fuel cell.

[0055] After the electrochemical reaction detection is completed, the sampled gas enters the chromatograph detector 117. By utilizing the separation characteristics of different gases in the chromatograph detector 117 and combining the detector with analysis, the content of various impurities in hydrogen is accurately determined.

[0056] Throughout the testing process, the control chip built into the chip control room 130 is responsible for receiving signals from various sensors and actuators, processing and analyzing these signals, and sending control commands according to the preset program. Simultaneously, through the human-machine interface on the human-machine control board 129, staff can easily set testing parameters, view test results, and perform other related operations. This intelligent design makes the hydrogen fuel cell hydrogen impurity detection equipment easier to use and maintain.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen impurity detection device for hydrogen fuel cells, comprising a detection device housing (101), characterized in that: Two support sleeves (102) are fixedly provided on one side of the top of the testing equipment box (101). The support sleeves (102) on both sides are symmetrically arranged. The outer end faces of the support sleeves (102) on both sides are rotatably connected to closed flaps (103). The testing equipment box (101) is provided with an upward-opening testing chamber (106). The testing chamber (106) is provided with a protective observation cover (104). A hydraulic lifter (12) is fixedly provided at the bottom of the testing chamber (106). 7) The hydraulic lifter (127) is provided with a hydraulic push rod (128), and a support plate (123) is fixedly connected to the top of the hydraulic push rod (128). An extractor (122) is fixedly provided in the support plate (123). A hydrogen concentration sampler (121) is fixedly provided at the center of the extractor (122). A protective chamber (120) is provided in the protective observation cover (104). The protective chamber (120) covers the hydrogen concentration sampler (121) inside.

2. The hydrogen impurity detection device for hydrogen fuel cells according to claim 1, characterized in that: Two lifting slide rails (105) are fixedly provided on both sides of the inner wall of the detection cavity (106). The lifting slide rails (105) on both sides are symmetrically arranged. Lifting shafts (135) are provided in the lifting slide rails (105) on both sides. Threaded shafts (134) are rotatably provided at the bottom of the lifting slide rails (105) on both sides. The threaded shafts (134) are threadedly connected to the lifting shafts (135).

3. The hydrogen impurity detection device for hydrogen fuel cells according to claim 2, characterized in that: The top end of the lifting shaft (135) is fixedly connected to a lifting connecting plate (136), and the lifting connecting plates (136) on both sides are fixedly connected to the outer end face of the protective observation cover (104). The lower wall of the lifting slide rail (105) is fixedly provided with a lifting motor (133), and the lower end of the threaded shaft (134) is poweredly connected to the lifting motor (133).

4. The hydrogen impurity detection device for hydrogen fuel cells according to claim 1, characterized in that: The front end of the testing equipment box (101) is provided with a power switch (107), and the lower part of the front end of the testing equipment box (101) is provided with a plurality of arrayed handheld grooves (108). The inner wall of the testing cavity (106) near the power switch (107) is fixedly provided with a testing strip (124).

5. The hydrogen impurity detection device for hydrogen fuel cells according to claim 1, characterized in that: The side of the testing equipment box (101) is fixedly provided with a side support plate (111), and a protective plate (119) is fixedly provided on the top side of the side support plate (111). The side of the extractor (122) is connected to a sampling tube (125). The sampling tube (125) passes through the bottom of the testing equipment box (101) and through the protective plate (119) to achieve a protective effect.

6. The hydrogen impurity detection device for hydrogen fuel cells according to claim 5, characterized in that: Two gas-liquid processors (109) are fixedly installed on one side of the top of the side support plate (111). The sampling tube (125) inside the protective plate (119) is connected to the bottom of the gas-liquid processor (109) on one side. A flow regulator (112) is provided between the tops of the gas-liquid processors (109) on both sides.

7. The hydrogen impurity detection device for a hydrogen fuel cell according to claim 6, characterized in that: A heat insulation plate (131) is fixedly provided on one side of the side support plate (111). A protective conduit (132) is filled in the heat insulation plate (131). One end of the protective conduit (132) is connected to the bottom of the electrochemical detector (116) on one side.

8. The hydrogen impurity detection device for a hydrogen fuel cell according to claim 7, characterized in that: An electrochemical detector (116) is provided on one side of the top of the side support plate (111). The electrochemical detector (116) is fixedly connected to the side of the detection equipment box (101). A connecting pipe (113) is connected to the bottom of the electrochemical detector (116). The connecting pipe (113) is connected to the other end of the protective conduit (132). A measurement display screen (115) is installed at the front end of the electrochemical detector (116) to display the detection results inside the electrochemical detector (116). A transmission pipe (118) is connected to the top of the electrochemical detector (116).

9. The hydrogen impurity detection device for a hydrogen fuel cell according to claim 8, characterized in that: A chromatograph detector (117) is installed on the side of the detection equipment box (101) and on the side of the electrochemical detector (116). The top of the chromatograph detector (117) is connected to the transmission pipe (118), and the bottom of the chromatograph detector (117) is connected to the discharge pipe (114).

10. The hydrogen impurity detection device for a hydrogen fuel cell according to claim 1, characterized in that: The back of the testing equipment box (101) is fixedly provided with a chip control chamber (130), which contains a control chip, and the front of the chip control chamber (130) is provided with a human-machine control board (129).

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