Dissolved oxygen water quality analyzer verification and calibration device

Abstract

The invention discloses a verification and calibration device for a dissolved oxygen water quality analyzer, belongs to the field of dissolved oxygen analysis, and solves the problems that an existing water quality analyzer detection device is dispersed in detection step and inconvenient to carry, and the verification and calibration device comprises a mounting base, a heat preservation shell, a water inlet assembly and an analyzer electrode. According to the water quality analyzer, oxygen in nitrogen with different concentrations can be input into the heat preservation shell, the dissolved oxygen concentration of distilled water is balanced, the water quality analyzer is used for detecting the detection accuracy of the water quality analyzer, follow-up calibration and adjustment are facilitated, in the aeration process, the stirring assembly can stir liquid in the heat preservation shell, and the aeration efficiency is improved. According to the device, the mixing speed of gas and distilled water is increased, the overall working efficiency of the device is improved, the device is automatic and integrated in use, the operation steps of the device in use are simplified, the device can move rapidly and stably through universal self-locking wheels installed at the bottom end, and the working quality of the device is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of dissolved oxygen analysis, and in particular relates to a verification and calibration device for a dissolved oxygen water quality analyzer. Background Art

[0002] The dissolved oxygen value is a basis for studying the self-purification ability of water. Dissolved oxygen refers to the amount of oxygen dissolved in water, usually recorded as DO, expressed in milligrams of oxygen per liter of water. The amount of dissolved oxygen in water is an indicator to measure the self-purification ability of water bodies. It is closely related to the partial pressure of oxygen in the air, atmospheric pressure, water temperature and water quality. Dissolved oxygen is also an important indicator in the processes of fish and shrimp farming, sewage treatment, and environmental emergency monitoring. It has important applications in many fields such as industry, environmental protection, and health. Therefore, it is very important to monitor the dissolved oxygen index. The dissolved oxygen water quality online analyzer has become a routine monitoring instrument for environmental protection departments at all levels.

[0003] The water quality analyzer can stably analyze and verify the amount of dissolved oxygen in the water, but after a long time, the staff needs to calibrate and verify the water quality analysis to ensure the accuracy of the equipment during operation. When calibrating the water quality analyzer, the existing verification steps are too scattered, the operation is inconvenient during use and it is not easy to carry it to the site, which affects the verification and calibration efficiency of the water quality analyzer and reduces the overall work efficiency of the equipment. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In order to solve the problems raised in the above background technology, the present invention adopts the following technical solutions.

[0006] A verification and calibration device for a dissolved oxygen water quality analyzer comprises a mounting base, an insulation shell, a water inlet assembly and an analyzer electrode. A insulation shell for storing distilled water is fixedly mounted on the upper surface of the mounting base, a side of the insulation shell is connected to a water inlet assembly for absorbing distilled water, an analyzer electrode connected to a water quality analyzer is arranged on the insulation shell, an aeration mechanism for inputting oxygen gas in nitrogen of different concentrations into the insulation shell is mounted on the upper surface of the insulation shell, the aeration mechanism comprises an air supply assembly, a bubbler, a sealing shell and a matching assembly, the air supply assembly is mounted on the side of the insulation shell, the bubbler is mounted on the upper surface of the insulation shell, and the bubbler is connected to the air supply assembly through a pipeline, the sealing shell is fixedly mounted on the upper surface of the insulation shell, and a matching assembly for conveying gas is mounted inside the insulation shell.

[0007] The matching component includes a driving motor, a gas connecting rod and a linkage rod. The gas connecting rod is rotatably installed inside the sealed shell, and a plurality of gas conveying grooves are provided inside the gas connecting rod. The linkage rod is fixedly installed at the end of the gas connecting rod, and the linkage rod is rotatably connected to the sealed shell, wherein both the linkage rod and the gas connecting rod are hollow tubular structures. The driving motor is installed on the surface of the sealed shell, and the output end of the driving motor is fixedly connected to the gas connecting rod.

[0008] The gas supply assembly includes a gas storage tank, a mounting frame, a connecting pipeline and a porous interface. The mounting frames are equidistantly installed on the side of the insulation shell. There are three groups of mounting frames in total. The gas storage tank is fixed by the mounting frames. The connecting pipeline is installed at the gas outlet end of the gas storage tank. The ends of the three groups of connecting pipelines are jointly equipped with porous interfaces, and the porous interfaces are connected to the sealed shell through pipelines.

[0009] The matching component also includes a stirring component. The outer surface of the linkage rod is equipped with a stirring component for stirring the liquid inside the heat-insulating shell and accelerating the mixing of gas and distilled water.

[0010] The stirring assembly consists of a rotating plate, a stirring rod and a stirring end. The rotating plate is fixedly installed on the outside of the linkage rod, the stirring rod is equidistantly fixed on the outside of the rotating plate, and the stirring end is fixedly installed on the end of the stirring rod. Multiple groups of circular holes are opened in the stirring end.

[0011] The matching component also includes a gas output end, and the bottom end of the linkage rod is fixedly mounted with the gas output end, and a plurality of groups of holes and grooves for conveying gas are evenly spaced inside the gas output end.

[0012] The gas storage tanks are provided in three groups, wherein the three groups of gas storage tanks respectively store oxygen gas in nitrogen with different concentrations.

[0013] The verification and calibration device also includes a floating mechanism, which includes a floating top plate, a motor plug-in slot, a shielding cover plate and a rotating side frame. The floating top plate is arranged in an insulation shell, and the floating top plate floats on the surface of distilled water in the insulation shell. A motor plug-in slot for plugging in the analyzer electrode is opened in the floating top plate. The rotating side frame is fixedly installed on the bottom end of the floating top plate on the side of the motor plug-in slot, and a rotatable and reset shielding cover plate is installed on the side of the rotating side frame.

[0014] The verification and calibration device also includes a temperature detection component and an atmospheric pressure gauge, both of which are installed on the upper surface of the insulation shell. The temperature detection component includes a mounting turn plate, a mounting base and a thermometer. The mounting base is fixedly installed on the upper surface of the insulation shell, the mounting turn plate is threadedly installed on the top of the mounting base, the thermometer is fixedly installed on the bottom of the mounting turn plate, and the thermometer penetrates the mounting base into the interior of the insulation shell to contact the distilled water inside the insulation shell.

[0015] The bottom end of the mounting seat is provided with a flexibly rotatable and automatically universal self-locking wheel, and the side surface of the mounting seat is fixedly provided with a pushing handle.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by arranging an aeration mechanism, oxygen gas in nitrogen of different concentrations can be input into the heat-insulating shell, so that the gas and distilled water are fully mixed, and the dissolved oxygen concentration of the distilled water reaches a balance, which is used to detect the detection accuracy of the water quality analyzer itself, and is convenient for subsequent calibration and adjustment. In the aeration process, the stirring component can stir the liquid inside the heat-insulating shell, accelerate the mixing speed of the gas and distilled water, and improve the overall working efficiency of the equipment. The equipment is automated and integrated when in use, which simplifies the operating steps of the equipment itself, and the equipment can move quickly and stably by installing universal self-locking wheels at the bottom, thereby ensuring the working quality of the equipment itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention.

[0018] Figure 2 It is a three-dimensional diagram of the surface structure of the mounting seat of the present invention.

[0019] Figure 3 It is a three-dimensional diagram of the aeration mechanism structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the matching components in the present invention.

[0021] Figure 5 It is a schematic diagram of the enlarged structure of the stirring assembly and the gas output end in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the air supply component in the present invention.

[0023] Figure 7 It is a schematic diagram of the structure of the temperature detection element and the floating mechanism in the present invention.

[0024] Figure 8 It is a structural schematic diagram of the floating mechanism in the present invention.

[0025] Fig. 9 It is a schematic diagram of the structure of the temperature detection element and the atmospheric pressure gauge in the present invention.

[0026] The corresponding relationship between the illustrations and component names in the figure is as follows: 1. Mounting base; 2. Insulation shell; 3. Water inlet assembly; 4. Analyzer electrode; 5. Aeration mechanism; 51. Air supply assembly; 511. Gas storage tank; 512. Mounting frame; 513. Connecting pipe; 514. Porous interface; 52. Bubbler; 53. Sealing shell; 54. Matching assembly; 541. Drive motor; 542. Gas connecting rod; 543. Linkage rod; 544. Stirring assembly; 545. Gas output end; 6. Temperature detection component; 61. Mounting turn plate; 62. Mounting base; 63. Temperature meter; 7. Atmospheric pressure gauge; 8. Floating mechanism; 81. Floating top plate; 82. Motor plug slot; 83. Shielding cover; 84. Rotating side frame. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0030] Depend on Figure 1 and Figure 2 As shown, it is a schematic diagram of the structure of the verification and calibration device in this embodiment, including a mounting base 1, an insulation shell 2, a water inlet component 3 and an analyzer electrode 4, the mounting base 1 has a insulation shell 2 for storing distilled water fixedly mounted on its upper surface, the insulation shell 2 is connected to a water inlet component 3 for absorbing distilled water on its side, the insulation shell 2 is provided with an analyzer electrode 4 connected to a water quality analyzer, and the insulation shell 2 has an aeration mechanism 5 installed on its upper surface for inputting oxygen gas in nitrogen of different concentrations into the insulation shell 2.

[0031] During use, a quantitative amount of 2L of distilled water is input into the insulation shell 2 through the use of the water inlet component 3, and then the oxygen gas in nitrogen is input into the insulation shell 2 through the use of the aeration mechanism 5. The speed of the oxygen gas delivery in the nitrogen needs to be controlled to 500 mL / min, and continuous aeration is performed for more than 60 minutes to balance the dissolved oxygen concentration therein. Then, the analyzer electrode 4 of the water quality analyzer is inserted into the insulation shell 2 so that the analyzer electrode 4 contacts the liquid in the insulation shell 2. The accuracy of the water quality analyzer itself is judged based on the data detected by the analyzer electrode 4 itself, and continuous ventilation is required during the calibration process to ensure the stability of the equipment during operation. Finally, the discharge of the liquid in the insulation shell 2 is completed through the cooperation of the water inlet component 3 and the output pipe on the side of the mounting seat 1, thereby realizing the overall automation and integrated operation of the equipment operation, accelerating the overall work efficiency, and efficiently detecting and calibrating the water quality analyzer.

[0032] By the attached Figure 3 As shown, it is a schematic diagram of the structure of the aeration mechanism 5 in this embodiment, the aeration mechanism 5 includes an air supply component 51, a bubbler 52, a sealing shell 53 and a matching component 54, the air supply component 51 is installed on the side of the insulation shell 2, the bubbler 52 is installed on the upper surface of the insulation shell 2, and the bubbler 52 is connected to the air supply component 51 through a pipeline, the sealing shell 53 is fixedly installed on the upper surface of the insulation shell 2, and a matching component 54 for conveying gas is installed inside the insulation shell 2.

[0033] During use, the bubbler 52 is used to input the oxygen gas in nitrogen stored in the gas supply component 51 into the sealed shell 53 through a pipeline. Then, the sealed shell 53 and the matching component 54 cooperate to input the gas into the heat-insulating shell 2. The gas is mixed with the distilled water in the heat-insulating shell 2 so that the dissolved oxygen concentration in the distilled water reaches a balance. In the process of gas delivery, the matching component 54 can stir the distilled water, which speeds up the mixing speed of the distilled water and the gas, thereby ensuring the stability of the equipment during operation.

[0034] By the attached Figure 4 As shown, it is a structural schematic diagram of the matching component 54 in this embodiment, the matching component 54 includes a driving motor 541, a gas connecting rod 542 and a linkage rod 543, the gas connecting rod 542 is rotatably installed inside the sealed shell 53, and a plurality of groups of conveying grooves for conveying gas are opened in the gas connecting rod 542, the linkage rod 543 is fixedly installed at the end of the gas connecting rod 542, and the linkage rod 543 is rotatably connected to the sealed shell 53, wherein both the linkage rod 543 and the gas connecting rod 542 are hollow tubular structures, the driving motor 541 is installed on the surface of the sealed shell 53, and the output end of the driving motor 541 is fixedly connected to the gas connecting rod 542.

[0035] During use, the oxygen gas in nitrogen is input into the sealed shell 53 with the cooperation of the bubbler 52, and then the oxygen gas in nitrogen passes through the conveying groove opened on the outside of the gas connecting rod 542 and enters the gas connecting rod 542, and enters the distilled water inside the heat-insulating shell 2 along the inner wall of the gas connecting rod 542 and the linkage rod 543, thereby realizing the aeration operation of the distilled water and achieving a balance in the dissolved oxygen concentration therein.

[0036] By the attached Figure 5 As shown, it is a schematic diagram of the structure of the matching component 54 in this embodiment. The matching component 54 also includes a stirring component 544. The outer surface of the linkage rod 543 is equipped with a stirring component 544 for stirring the liquid inside the heat-insulating shell 2 and accelerating the mixing of gas and distilled water.

[0037] During use, the stirring component 544 rotates synchronously with the output end of the driving motor 541, and the stirring component 544 stirs the liquid inside the insulation shell 2, so as to facilitate the mixing of the oxygen gas in the nitrogen transported inside the linkage rod 543 with the distilled water, thereby accelerating the equilibrium speed of the dissolved oxygen concentration in the distilled water.

[0038] By the attached Figure 5 As shown, it is a structural schematic diagram of the matching component 54 in this embodiment, the stirring component 544 is composed of a rotating plate, a stirring rod and a stirring end, the rotating plate is fixedly installed on the outside of the linkage rod 543, the stirring rod is equidistantly fixed on the outside of the rotating plate, the stirring end is fixedly installed on the end of the stirring rod, and a plurality of circular hole grooves are opened in the stirring end.

[0039] During use, the rotating plate rotates synchronously with the linkage rod 543 through the rotation of the linkage rod 543. At this time, the stirring rod and the stirring end stir the distilled water stored in the heat-insulating shell 2. During the stirring process, the multiple groups of holes and grooves opened in the stirring end are used to accelerate the mixing speed of the gas and distilled water, thereby ensuring the working efficiency of the equipment itself.

[0040] By the attached Figure 5 As shown, it is a structural schematic diagram of the matching component 54 in this embodiment, and the matching component 54 also includes a gas output end 545, and the gas output end 545 is fixedly installed at the bottom end of the linkage rod 543, and a plurality of groups of holes and grooves for conveying gas are equidistantly arranged inside the gas output end 545.

[0041] During use, the gas output end 545 is installed at the end of the linkage rod 543, and the oxygen gas in the nitrogen is transported along the linkage rod 543, and then discharged through the holes for transporting gas outside the gas output end 545. The gas is mixed with the distilled water stored inside the insulation shell 2 to realize the aeration operation.

[0042] By the attached Figure 6As shown, it is a structural schematic diagram of the air supply component 51 in this embodiment, the air supply component 51 includes a gas storage tank 511, a mounting frame 512, a connecting pipe 513 and a porous interface 514, the mounting frame 512 is equidistantly installed on the side of the insulation shell 2, and there are three groups of mounting frames 512. The gas storage tank 511 is fixed by the mounting frame 512, and the connecting pipe 513 is installed at the gas outlet end of the gas storage tank 511. The ends of the three groups of connecting pipes 513 are jointly equipped with a porous interface 514, and the porous interface 514 is connected to the sealing shell 53 through a pipeline.

[0043] During use, a gas storage tank 511 containing a gas with a corresponding oxygen gas concentration in nitrogen is selected according to the detection requirements, and then the gas is transported through the porous interface 514 through the cooperation of the connecting pipeline 513 and the control valve installed outside the connecting pipeline 513, and the gas is input into the sealed shell 53, so that the oxygen gas in nitrogen can be input into the insulation shell 2, and the distilled water stored in the insulation shell 2 is aerated to allow the dissolved oxygen in the distilled water to reach a balance.

[0044] By the attached Figure 6 As shown, it is a schematic diagram of the structure of the gas supply component 51 in this embodiment, and the gas storage tanks 511 are provided in three groups, wherein the three groups of gas storage tanks 511 are divided into nitrogen and oxygen gases with different concentrations.

[0045] During use, the concentrations of oxygen gas in nitrogen stored in the three groups of gas storage tanks 511 are 0.05 mol / mol, 0.10 mol / mol, and 0.25 mol / mol, respectively. Then, oxygen gas in nitrogen of different concentrations is input into distilled water, and the saturated concentrations of oxygen gas in nitrogen of different concentrations in water at different water temperatures and atmospheric pressures are detected by the analyzer electrode 4, so as to judge the accuracy of the analyzer electrode 4 itself during detection, and the reference value of the saturated concentration in water can be converted, and the conversion formula is: Cs=Cb×Cq / 20.94%, wherein Cs is the saturated concentration value of oxygen gas in nitrogen of a certain concentration in water, mg / L; Cb is the saturated concentration value of oxygen in air in water calculated by table lookup or interpolation, mg / L; Cq is the concentration value of the standard substance of oxygen gas in nitrogen; 20.94% is the oxygen content in air; the saturated concentration in water is accurately calculated through the above steps.

[0046] By the attached Figure 7 and Figure 8As shown, it is a structural schematic diagram of the floating mechanism 8 in this embodiment. The verification and calibration device also includes a floating mechanism 8, and the floating mechanism 8 includes a floating top plate 81, a motor plug-in slot 82, a shielding cover plate 83 and a rotating side frame 84. The floating top plate 81 is arranged in the insulation shell 2, and the floating top plate 81 floats on the surface of the distilled water in the insulation shell 2. The floating top plate 81 is provided with a motor plug-in slot 82 for plugging in with the analyzer electrode 4. The rotating side frame 84 is fixedly installed at the bottom end of the floating top plate 81 on the side of the motor plug-in slot 82, and a rotatable and reset shielding cover plate 83 is installed on the side of the rotating side frame 84.

[0047] During use, distilled water is input into the interior of the insulation shell 2, and the floating top plate 81 floats on the surface of the distilled water by virtue of its own density and weight. When the gas output end 545 delivers gas to mix with the distilled water, the floating top plate 81 allows the dissolved oxygen in the insulation shell 2 to quickly reach saturation, thereby accelerating the liquid saturation rate and improving the overall working efficiency. At this time, the analyzer electrode 4 is inserted into the liquid in the insulation shell 2 through the motor plug slot 82 to detect the dissolved oxygen value of the liquid. During the insertion process of the analyzer electrode 4, the shielding cover 83 is squeezed by the analyzer electrode 4 to make axial rotation and deflection along the rotating side frame 84, and a torsion spring is installed in the rotating side frame 84 to facilitate rapid resetting of the shielding cover 83, thereby ensuring the stability of the equipment during operation.

[0048] By the attached Figure 7 and Fig. 9 As shown, it is a structural schematic diagram of the temperature detection component 6 and the atmospheric pressure gauge 7 in this embodiment. The verification and calibration device also includes the temperature detection component 6 and the atmospheric pressure gauge 7, and the temperature detection component 6 and the atmospheric pressure gauge 7 are both installed on the upper surface of the insulation shell 2. The temperature detection component 6 includes a mounting rotating plate 61, a mounting base 62 and a thermometer 63. The mounting base 62 is fixedly installed on the upper surface of the insulation shell 2, the mounting rotating plate 61 is threadedly installed on the top of the mounting base 62, the thermometer 63 is fixedly installed on the bottom of the mounting rotating plate 61, and the thermometer 63 penetrates the mounting base 62 to enter the interior of the insulation shell 2 and contacts with the distilled water inside the insulation shell 2.

[0049] During use, the atmospheric pressure in the surrounding environment can be accurately detected by using the atmospheric pressure gauge 7, and the temperature detection component 6 can detect the overall temperature of the distilled water, which is convenient for accurately calculating the changes in atmospheric pressure and water temperature, reducing the error of the final detection data, and improving the accuracy of the equipment during operation. When the equipment is in use, the atmospheric pressure gauge 7 and the temperature detection component 6 can be quickly removed from the surface of the insulation shell 2, which is convenient for calibrating the accuracy of the detection data of the atmospheric pressure gauge 7 and the temperature detection component 6.

[0050] By the attached Figure 3As shown, a flexibly rotatable and automatic universal self-locking wheel is installed at the bottom end of the mounting seat 1, and a pushing handle is fixedly installed on the side of the mounting seat 1.

[0051] During use, the device can be moved flexibly and safely through the use of universal self-locking wheels. The installation of the push handle further enhances the flexibility of the device itself, making it easier for the user to move the device to the target position. The device position can also be locked later to ensure the stability of the device during use.

[0052] Working principle: During use, the dissolved oxygen water quality analyzer verification and calibration device uses the water inlet component 3 to input a certain amount of distilled water 2L into the insulation shell 2, and then uses the aeration mechanism 5 to input the oxygen gas in nitrogen into the insulation shell 2. The distilled water is input into the insulation shell 2, and the floating top plate 81 floats on the surface of the distilled water by its own density and weight. Then, through the use of the bubbler 52, the oxygen gas in nitrogen stored in the air supply component 51 is input into the sealed shell 53 through a pipeline. According to the detection requirements, a gas storage tank 511 containing the corresponding oxygen gas concentration in nitrogen is selected, and then the gas is passed through the connecting pipeline 513 and the control valve installed outside the connecting pipeline 513 through the cooperation of the control valve. The hole interface 514 is used for transportation, and the gas is input into the sealed shell 53, so that the oxygen gas in the nitrogen is input into the heat-insulating shell 2, and the distilled water stored in the heat-insulating shell 2 is aerated, so that the dissolved oxygen in the distilled water reaches a balance, and then the sealed shell 53 and the matching component 54 cooperate to input the gas into the heat-insulating shell 2, and the gas is mixed with the distilled water in the heat-insulating shell 2, so that the dissolved oxygen concentration in the distilled water reaches a balance, and in the process of gas transportation, through the rotation of the linkage rod 543, the rotating plate rotates synchronously with the linkage rod 543, and at this time, the stirring rod and the stirring end stir the distilled water stored in the heat-insulating shell 2, and in the stirring process, the multiple groups of holes and grooves opened in the stirring end are used to accelerate the mixing of the gas and the distilled water When the gas output end 545 delivers gas and distilled water, the floating top plate 81 quickly saturates the dissolved oxygen in the insulation shell 2, speeds up the liquid saturation rate, and ensures the working efficiency of the equipment itself. During gas delivery, the speed of oxygen gas delivery in nitrogen needs to be controlled to 500mL / min, and continuous aeration is performed for more than 60min to balance the dissolved oxygen concentration therein. Then, the analyzer electrode 4 of the water quality analyzer is inserted into the insulation shell 2, so that the analyzer electrode 4 contacts the liquid in the insulation shell 2. The accuracy of the water quality analyzer itself is judged based on the data detected by the analyzer electrode 4 itself, and continuous ventilation is required during the calibration process to ensure the stability of the equipment during operation. Finally, the water inlet component 3 is used to calibrate the water quality analyzer. The equipment cooperates with the output pipe on the side of the mounting base 1 to discharge the liquid inside the insulation shell 2, realizing the automation and integration of the overall operation of the equipment. When the equipment is in use, the atmospheric pressure gauge 7 is used to accurately detect the atmospheric pressure in the surrounding environment, and the temperature detection component 6 can detect the overall temperature of the distilled water, which is convenient for accurately calculating the changes in atmospheric pressure and water temperature, reducing the error of the final detection data, and improving the accuracy of the equipment during operation. When the equipment is in use, the atmospheric pressure gauge 7 and the temperature detection component 6 can be quickly removed from the surface of the insulation shell 2, which is convenient for calibrating the accuracy of the detection data of the atmospheric pressure gauge 7 and the temperature detection component 6, thereby accelerating the overall work efficiency and efficiently detecting and calibrating the water quality analyzer.

[0053] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A dissolved oxygen water quality analyzer verification and calibration device, comprising a mounting seat (1), a heat-insulating shell (2), a water inlet assembly (3) and an analyzer electrode (4), wherein the mounting seat (1) is fixedly mounted with a heat-insulating shell (2) for storing distilled water, the side of the heat-insulating shell (2) is connected with a water inlet assembly (3) for absorbing distilled water, and the heat-insulating shell (2) is provided with an analyzer electrode (4) connected to a water quality analyzer, characterized in that: An aeration mechanism (5) for inputting oxygen-nitrogen gas of different concentrations into the interior of the insulation shell (2) is installed on the upper surface of the insulation shell (2); the aeration mechanism (5) comprises an air supply component (51), a bubbler (52), a sealing shell (53) and a matching component (54); the air supply component (51) is installed on the side of the insulation shell (2); the bubbler (52) is installed on the upper surface of the insulation shell (2); the bubbler (52) and the air supply component (51) are connected through a pipeline; the sealing shell (53) is fixedly installed on the upper surface of the insulation shell (2); and a matching component (54) for conveying gas is installed inside the insulation shell (2); The mating assembly (54) comprises a driving motor (541), a gas connecting rod (542) and a linkage rod (543); the gas connecting rod (542) is rotatably mounted inside the sealed housing (53); a plurality of gas conveying grooves are provided inside the gas connecting rod (542); the linkage rod (543) is fixedly mounted at the end of the gas connecting rod (542); and the linkage rod (543) is rotatably connected to the sealed housing (53); both the linkage rod (543) and the gas connecting rod (542) are hollow tubular structures; the driving motor (541) is mounted on the surface of the sealed housing (53); and the output end of the driving motor (541) is fixedly connected to the gas connecting rod (542); The gas supply assembly (51) comprises a gas storage tank (511), a mounting frame (512), a connecting pipeline (513) and a porous interface (514); the mounting frame (512) is equidistantly mounted on the side of the heat-insulating shell (2); three groups of mounting frames (512) are provided; the gas storage tank (511) is fixed by the mounting frame (512); the connecting pipeline (513) is installed at the gas outlet end of the gas storage tank (511); the ends of the three groups of connecting pipelines (513) are commonly equipped with a porous interface (514); the porous interface (514) is connected to the sealed shell (53) through a pipeline.

2. The dissolved oxygen water quality analyzer verification and calibration device according to claim 1, characterized in that: The matching component (54) further comprises a stirring component (544), and the outer surface of the linkage rod (543) is provided with a stirring component (544) for stirring the liquid inside the heat-insulating shell (2) and accelerating the mixing of the gas and the distilled water.

3. The dissolved oxygen water quality analyzer verification and calibration device according to claim 2 is characterized in that: The stirring assembly (544) is composed of a rotating plate, a stirring rod and a stirring end. The rotating plate is fixedly mounted on the outside of the linkage rod (543). The stirring rod is fixedly mounted on the outside of the rotating plate at equal distances. The stirring end is fixedly mounted on the end of the stirring rod. A plurality of groups of circular holes are provided in the stirring end.

4. The dissolved oxygen water quality analyzer verification and calibration device according to claim 3 is characterized in that: The mating component (54) further comprises a gas output end (545), the bottom end of the linkage rod (543) being fixedly mounted with the gas output end (545), and the gas output end (545) has a plurality of groups of holes and grooves for conveying gas arranged at equal intervals therein.

5. The dissolved oxygen water quality analyzer verification and calibration device according to claim 1, characterized in that: The gas storage tanks (511) are provided in three groups in total, wherein the three groups of gas storage tanks (511) are divided to store oxygen gas in nitrogen with different concentrations.

6. The dissolved oxygen water quality analyzer verification and calibration device according to claim 1, characterized in that: The verification and calibration device further comprises a floating mechanism (8), the floating mechanism (8) comprising a floating top plate (81), a motor plug-in slot (82), a shielding cover plate (83) and a rotating side frame (84), the floating top plate (81) being arranged in the heat-insulating shell (2), the floating top plate (81) floating on the surface of distilled water in the heat-insulating shell (2), the floating top plate (81) being provided with a motor plug-in slot (82) for plugging in an analyzer electrode (4), the rotating side frame (84) being fixedly mounted at the bottom end of the floating top plate (81) and located on the side of the motor plug-in slot (82), and the side of the rotating side frame (84) being provided with a shielding cover plate (83) that can be rotated and reset.

7. The dissolved oxygen water quality analyzer verification and calibration device according to claim 1, characterized in that: The verification and calibration device also includes a temperature detection component (6) and an atmospheric pressure gauge (7), wherein the temperature detection component (6) and the atmospheric pressure gauge (7) are both mounted on the upper surface of the thermal insulation shell (2), wherein the temperature detection component (6) includes a mounting rotating plate (61), a mounting base (62) and a temperature meter (63), wherein the mounting base (62) is fixedly mounted on the upper surface of the thermal insulation shell (2), the mounting rotating plate (61) is threadedly mounted on the top of the mounting base (62), the temperature meter (63) is fixedly mounted on the bottom of the mounting rotating plate (61), and the temperature meter (63) penetrates the mounting base (62) and enters the interior of the thermal insulation shell (2) to contact the distilled water inside the thermal insulation shell (2).

8. The dissolved oxygen water quality analyzer verification and calibration device according to claim 1, characterized in that: The bottom end of the mounting seat (1) is provided with a flexibly rotatable and automatically universal self-locking wheel, and a pushing handle is fixedly provided on the side of the mounting seat (1).

Images