Water quality detection device for hydrogen production by alkaline water electrolysis

Abstract

The utility model discloses a kind of water quality detection devices for alkaline water electrolysis hydrogen production, the utility model relates to water quality detection technical field.It includes water quality shell, installation mechanism for alkaline water electrolysis hydrogen production water quality detection is arranged on water quality shell, installation mechanism includes, the water sample to be detected of the utility model alkaline water electrolysis hydrogen production enters water quality shell, first after preliminary filtration by filter screen frame, remove large particle suspended solids, filtered water flows through recessed channel pipe and vertical pipe, into transmission conduit, filter screen plate in transmission conduit further filters tiny particle, ensure water purity, impurity content is significantly reduced by filter screen frame and filter screen plate, prevent electrolytic cell electrode pollution and catalytic activity decline, filter screen frame and filter screen plate in transmission conduit form staged filtration system, different particle size suspended solids in alkaline water can be filtered respectively, avoid detection probe in subsequent detection component is attached by suspended solids, ensure that detection data is accurate.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically to a water quality testing device for alkaline water electrolysis hydrogen production. Background Technology

[0002] Alkaline water electrolysis for hydrogen production is one of the mainstream large-scale hydrogen production technologies, boasting advantages such as mature technology, low cost, and long lifespan. It is widely used in industrial hydrogen production, renewable energy storage, and hydrogen-powered transportation. Its core principle involves electrolyzing an alkaline electrolyte solution to decompose water into hydrogen and oxygen under the action of direct current.

[0003] The purity of water directly affects the electrolysis efficiency, electrode lifespan, and system stability during electrolysis. If the water sample to be electrolyzed contains suspended solids, particulate impurities, or metal ions, they will adhere to the electrode surface, leading to passivation of the catalytic active layer, increasing the internal resistance of the electrolyzer, and reducing hydrogen production efficiency. However, traditional single-stage filtration structures are difficult to simultaneously intercept large suspended solids and small particles, causing some impurities to penetrate the filter layer and enter the electrolyzer, affecting the detection effect. Therefore, this invention provides a water quality detection device for alkaline water electrolysis hydrogen production. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a water quality testing device for alkaline water electrolysis hydrogen production. It solves the problem that water purity directly affects electrolysis efficiency, electrode lifespan, and system stability during electrolysis. If the water sample to be electrolyzed contains suspended solids, particulate impurities, or metal ions, these will adhere to the electrode surface, leading to passivation of the catalytic active layer, increasing the internal resistance of the electrolyzer, and reducing hydrogen production efficiency. Furthermore, traditional single-stage filtration structures struggle to simultaneously intercept large suspended solids and small particles, causing some impurities to penetrate the filter layer and enter the electrolyzer, affecting the detection results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water quality testing device for alkaline water electrolysis hydrogen production, comprising a water quality shell, wherein the water quality shell is provided with an installation mechanism for testing the water quality of alkaline water electrolysis hydrogen production, the installation mechanism comprising: A filtration assembly includes a water-filled housing with a filter screen frame connected by a positioning component inside. A locking component for fixing the filter screen frame is located at the upper edge of the water-filled housing. A first conduit extends through the side wall of the water-filled housing. A grooved tube is fixed to one end of the first conduit inside the water-filled housing. A vertical tube is fixed to one end of the grooved tube. A protective housing is fixed to the upper end of the vertical tube. A transmission conduit with a detachable component is located at the other end of the first conduit. Filter screen plates are distributed inside the transmission conduit. The detection assembly includes a detection housing connected to one end of a transmission conduit via an input component, and a detection probe connected to the inside of the detection housing via a telescopic component.

[0006] Preferably, the positioning component includes a pair of support plates fixed to the inner wall of the water quality shell, a pair of positioning rods fixed to the upper end face of the support plates, the filter frame located on the upper end face of the support plates, and the filter frame inserted along the positioning rods and fitting against the upper end face of the support plates.

[0007] Preferably, the locking assembly includes a spring fixed to the upper surface of the water filter housing, a connecting plate fixed to the upper end of the spring, a movable plate rotatably connected to the upper end of the connecting plate, a locking rod fixed to one end of the movable plate, the locking rod being insertable into the interior of the filter frame, and a locking hole for inserting the locking rod being opened on one side of the spring on the upper surface of the water filter housing.

[0008] Preferably, the detachable assembly includes a flange connected to one end of a first conduit, and the transmission conduit is located on one side of the flange and connected by bolts.

[0009] Preferably, the input component includes a second conduit connected to one end of a transmission conduit, the detection housing is located at the output end of the second conduit, and the side wall of the detection housing is provided with a water pump for extracting water from the water source.

[0010] Preferably, the telescopic assembly includes a horizontal plate disposed at the upper end of the detection housing, an electric push rod being fixedly fixed through the interior of the horizontal plate, the detection probe being located at the lower end of the electric push rod, and a control panel being disposed on one side of the water quality housing.

[0011] Beneficial effects This invention provides a water quality testing device for alkaline water electrolysis hydrogen production. Compared with the prior art, it has the following advantages: Firstly, in the alkaline water electrolysis hydrogen production process of this invention, the water sample to be tested enters the water quality shell and undergoes preliminary filtration through a filter screen frame to remove large suspended particles. The filtered water then flows through a grooved pipe and a vertical pipe into a transmission conduit. The filter screen plate inside the transmission conduit further filters out tiny particles, ensuring water purity. The filter screen frame and filter screen plate significantly reduce impurity content, preventing electrode contamination in the electrolyzer and a decrease in catalytic activity. The filter screen frame and the filter screen plate inside the transmission conduit form a graded filtration system that can filter suspended particles of different sizes in alkaline water separately, preventing the detection probe in the subsequent detection components from being adhered to by suspended particles and ensuring accurate detection data.

[0012] Secondly, the operator aligns the filter screen frame with the positioning rod on the inner wall support plate of the water quality shell, inserts it vertically downwards along the positioning rod until the lower end face of the filter screen frame is completely in contact with the upper end face of the support plate to prevent the filter screen frame from shifting. Then, pull the connecting plate upwards while rotating the movable plate so that the locking rod at one end of the movable plate is aligned with the reserved hole of the filter screen frame. Release the connecting plate, and under the action of the spring return force, the locking rod is inserted into the filter screen frame. When disassembling, pull the connecting plate again to separate the locking rod from the filter screen frame, rotate the movable plate to align the locking rod with the locking hole, and take out the filter screen frame. The flange connection of the detachable components allows the first conduit and the transmission conduit to be quickly separated, thus making it easy to disassemble the filter screen plate and filter screen frame of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the detection shell of this utility model; Figure 3 This is a schematic diagram of the internal structure of the water-grade outer shell of this utility model; Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the first catheter structure of this utility model; Figure 6 This is a schematic diagram of the transmission conduit structure of this utility model.

[0014] In the diagram: 1. Water quality casing; 2. Control panel; 3. Filter screen frame; 301. Support plate; 302. Positioning rod; 4. Spring; 401. Connecting plate; 402. Movable plate; 403. Locking rod; 404. Locking hole; 5. First conduit; 501. Grooved tube; 502. Vertical tube; 503. Protective casing; 6. Flange; 601. Transmission conduit; 602. Filter screen plate; 7. Detection casing; 701. Second conduit; 702. Water pump; 703. Horizontal plate; 704. Electric push rod; 705. Detection probe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-6This utility model provides a technical solution: a water quality testing device for alkaline water electrolysis hydrogen production, including a water quality shell 1, on which an installation mechanism for testing the water quality of alkaline water electrolysis hydrogen production is provided, the installation mechanism including: The filter assembly includes a water quality shell 1 with a filter screen frame 3 connected by a positioning component inside. The upper edge of the water quality shell 1 is provided with a locking component for fixing the filter screen frame 3. A first conduit 5 passes through the side wall of the water quality shell 1. A grooved tube 501 is fixed at one end of the first conduit 5 inside the water quality shell 1. A vertical tube 502 is fixed at one end of the grooved tube 501. A protective shell 503 is fixed at the upper end of the vertical tube 502. A transmission conduit 601 with a detachable component is provided at the other end of the first conduit 5. Filter screen plates 602 are distributed inside the transmission conduit 601. The detection assembly includes a detection housing 7 connected to one end of a transmission conduit 601 via an input component, and a detection probe 705 connected to the inside of the detection housing 7 via a telescopic component.

[0017] In a preferred embodiment, the positioning assembly includes a pair of support plates 301 fixed to the inner wall of the water quality shell 1. A pair of positioning rods 302 are fixed to the upper end face of the support plates 301. The filter frame 3 is located on the upper end face of the support plates 301, and the filter frame 3 is inserted along the positioning rods 302 and fits against the upper end face of the support plates 301. The locking assembly includes a spring 4 fixed to the upper end face of the water quality shell 1. A connecting plate 401 is fixed to the upper end of the spring 4. A movable plate 402 is rotatably connected to the upper end of the connecting plate 401. A locking rod 403 is fixed to one end of the movable plate 402. The locking rod 403 can be inserted into the interior of the filter frame 3. A locking hole 404 for the locking rod 403 to be inserted is opened on one side of the spring 4 on the upper end face of the water quality shell 1.

[0018] Specifically, the operator aligns the filter frame 3 with the positioning rod 302 on the inner wall support plate 301 of the water quality shell 1, and inserts it vertically downwards along the positioning rod 302 until the lower end face of the filter frame 3 is completely in contact with the upper end face of the support plate 301 to prevent the filter frame 3 from shifting. Then, the operator pulls the connecting plate 401 upwards while rotating the movable plate 402 so that the locking rod 403 at one end of the movable plate 402 is aligned with the reserved hole of the filter frame 3. The operator then releases the connecting plate 401, and under the action of the spring 4's return force, the locking rod 403 is inserted into the filter frame 3. When disassembling, the operator pulls the connecting plate 401 again to separate the locking rod 403 from the filter frame 3, rotates the movable plate 402 to align the locking rod 403 with the locking hole 404, and removes the filter frame 3. After the alkaline water electrolysis hydrogen production water sample enters the water quality shell 1, it first undergoes preliminary filtration through the filter frame 3 to remove large particulate suspended matter.

[0019] The protective outer shell 503 is used to prevent impurities from directly entering the interior of the vertical pipe 502, while the grooved pipe 501 is located in the center of the water quality outer shell 1 to prevent the intake of sediment at the bottom.

[0020] In a preferred embodiment, the detachable component includes a flange 6 connected to one end of the first conduit 5, a transmission conduit 601 located on one side of the flange 6 and connected by bolts, and an input component including a second conduit 701 connected to one end of the transmission conduit 601. The detection housing 7 is located at the output end of the second conduit 701. A water pump 702 for extracting water from the water source of the water quality housing 1 is provided on the side wall of the detection housing 7. When the water pump 702 is started, it provides pumping power, and the water filtered inside the water quality housing 1 enters the interior of the detection housing 7 in sequence through the vertical pipe 502, the grooved pipe 501, the first conduit 5, the transmission conduit 601 and the second conduit 701.

[0021] The filtered water flows through the grooved pipe 501 and the vertical pipe 502, and enters the transmission conduit 601. The filter plate 602 inside the transmission conduit 601 further filters out tiny particles to ensure water purity. The filter frame 3 and the filter plate 602 significantly reduce the impurity content and prevent electrolytic cell electrode contamination and catalytic activity decline.

[0022] The filter frame 3 and the filter plate 602 inside the transmission conduit 601 form a graded filtration system, which can filter suspended solids of different particle sizes in alkaline water separately, preventing the detection probe 705 in the subsequent detection components from being attached to suspended solids and ensuring accurate detection data.

[0023] Furthermore, the flange 6 connection of the detachable component allows the first conduit 5 and the transmission conduit 601 to be quickly separated, facilitating the replacement of the filter plate 602.

[0024] Additional notes: The first conduit 5, the grooved tube 501, the vertical tube 502, and the protective shell 503 are all made of alkali-resistant materials such as polytetrafluoroethylene to improve corrosion resistance.

[0025] In a preferred embodiment, the telescopic assembly includes a horizontal plate 703 disposed on the upper end of the detection housing 7, an electric push rod 704 fixedly inserted through the interior of the horizontal plate 703, and a detection probe 705 located at the lower end of the electric push rod 704. A control panel 2 is disposed on one side of the water quality housing 1. The electric push rod 704 extends to push the detection probe 705 into the water sample. The detection probe 705 includes a pH sensor and an ion sensor. The pH sensor measures the potential difference through a hydrogen ion selective electrode and converts it into a pH value. The ion sensor quantitatively analyzes the concentration of specific ions using an ion selective electrode or electrochemical method. The detection data is displayed on the control panel 2. The electric push rod 704 enables automatic extension and retraction of the probe, avoiding human operation errors and supporting continuous online monitoring.

[0026] The pH sensor and ion sensor mentioned above are model METTLER TOLEDO InPro4260i and Hamilton easy fer m Plus K-8000, respectively, and the electric actuator is model LINAK LA36.

[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0028] During operation, the operator first aligns the filter screen frame 3 with the positioning rod 302 on the inner wall support plate 301 of the water quality shell 1, and inserts it vertically downward along the positioning rod 302 until the lower end face of the filter screen frame 3 is completely in contact with the upper end face of the support plate 301 to avoid displacement. Then, the operator pulls the connecting plate 401 upward and rotates the movable plate 402 so that the locking rod 403 at one end of the movable plate 402 is aligned with the reserved hole of the filter screen frame 3. The operator then releases the connecting plate 401, and under the action of the spring 4's return force, the locking rod 403 is inserted into the filter screen frame 3 to complete the fixation. When disassembling, the operator pulls the connecting plate 401 again to separate the locking rod 403 from the filter screen frame 3, and rotates the movable plate 402 to align the locking rod 403 with the locking hole 404 to remove the filter screen frame 3. After the water sample to be tested for alkaline water electrolysis hydrogen production enters the water quality shell 1, it is first filtered by the filter screen frame 3 to remove large particulate suspended matter. At this time, the protective shell 503 prevents impurities from directly entering the vertical pipe 502, and the grooved pipe 501 is located in the center of the water quality shell 1 to prevent bottom sediment from being sucked in. Then, the water pump 702 on the side wall of the detection shell 7 is started to provide water pumping power, so that the filtered water sample passes through the vertical pipe 502, the grooved pipe 501, the first conduit 5 in sequence, and then through the flange 6 at one end of the first conduit 5 and the bolted transmission conduit 601. After the water flows through the filter screen plate 602 in the transmission conduit 601 to further filter out small particles, it enters the detection shell 7 through the second conduit 701 connected to one end of the transmission conduit 601. Then, the electric push rod 704, which is fixed through the horizontal plate 703 on the upper end of the detection housing 7, is extended by the control panel 2 on one side of the water quality housing 1. This pushes the detection probe 705 at the lower end of the electric push rod 704 into the water sample. The pH sensor in the detection probe 705 measures the potential difference through the hydrogen ion selective electrode and converts it into pH value. The ion sensor uses the ion selective electrode or electrochemical method to quantitatively analyze the concentration of specific ions. The detection data is transmitted to the control panel 2 for display in real time. After the detection is completed, the electric push rod 704 retracts and drives the detection probe 705 to reset. Throughout the process, the first conduit 5, the grooved tube 501, the vertical tube 502 and the protective housing 503 are all made of alkali-resistant materials such as polytetrafluoroethylene to improve corrosion resistance. The detachable flange 6 facilitates the subsequent disassembly of the first conduit 5 and the transmission conduit 601 to replace the filter plate 602.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water quality testing device for alkaline water electrolysis hydrogen production, comprising a water quality shell (1), characterized in that: The water quality shell (1) is provided with an installation mechanism for detecting the water quality of alkaline water electrolysis hydrogen production. The installation mechanism includes: The filter assembly includes a water quality shell (1) with a filter screen frame (3) connected by a positioning component inside. The upper edge of the water quality shell (1) is provided with a locking component for fixing the filter screen frame (3). A first conduit (5) passes through the side wall of the water quality shell (1). A grooved tube (501) is fixed at one end of the first conduit (5) inside the water quality shell (1). A vertical tube (502) is fixed at one end of the grooved tube (501). A protective shell (503) is fixed at the upper end of the vertical tube (502). A transmission conduit (601) with a detachable component is provided at the other end of the first conduit (5). Filter screen plates (602) are distributed inside the transmission conduit (601). The detection assembly includes a transmission conduit (601) with a detection housing (7) connected to an input component at one end, and a detection probe (705) connected to a telescopic component inside the detection housing (7).

2. The water quality testing device for alkaline water electrolysis hydrogen production according to claim 1, characterized in that: The positioning component includes a pair of support plates (301) fixed to the inner wall of the water quality shell (1), a pair of positioning rods (302) fixed to the upper end face of the support plate (301), the filter frame (3) is located on the upper end face of the support plate (301), and the filter frame (3) is inserted along the positioning rods (302) and fits against the upper end face of the support plate (301).

3. The water quality testing device for alkaline water electrolysis hydrogen production according to claim 1, characterized in that: The locking assembly includes a spring (4) fixed to the upper surface of the water quality shell (1), a connecting plate (401) fixed to the upper end of the spring (4), a movable plate (402) rotatably connected to the upper end of the connecting plate (401), a locking rod (403) fixed to one end of the movable plate (402), the locking rod (403) being able to be inserted into the interior of the filter frame (3), and a locking hole (404) for inserting the locking rod (403) is provided on one side of the spring (4) on the upper surface of the water quality shell (1).

4. The water quality testing device for alkaline water electrolysis hydrogen production according to claim 1, characterized in that: The detachable assembly includes a flange (6) connected to one end of a first conduit (5), and the transmission conduit (601) is located on one side of the flange (6) and is bolted to it.

5. The water quality testing device for alkaline water electrolysis hydrogen production according to claim 1, characterized in that: The input component includes a second conduit (701) connected to one end of a transmission conduit (601), and the detection housing (7) is located at the output end of the second conduit (701). The side wall of the detection housing (7) is provided with a water pump (702) for water source extraction from the water quality housing (1).

6. The water quality testing device for alkaline water electrolysis hydrogen production according to claim 1, characterized in that: The telescopic assembly includes a horizontal plate (703) provided at the upper end of the detection housing (7), an electric push rod (704) is fixed through the interior of the horizontal plate (703), the detection probe (705) is located at the lower end of the electric push rod (704), and a control panel (2) is provided on one side of the water quality housing (1).

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