Portable turbidity meter field verification and calibration device

Abstract

The utility model discloses a portable turbidity meter on-site verification and calibration device which comprises a box body, the interior of the box body is divided into two layers through a partition plate, the upper layer is provided with a plurality of storage lattices, foam linings are arranged in the storage lattices, storage holes are reserved in the foam linings, and the storage holes are communicated with the storage lattices. The storage hole is used for placing a turbidity standard solution, a beaker, a quantitative adjustable pipettor and a volumetric flask; the lower layer is used as a zero-turbidity water accommodating tank; the transfer pipette, the volumetric flask, the zero-turbidity water and the like which are used for detecting and calibrating the turbidity meter are integrated in the box body structure, and each part is supported and protected through the foam lining, so that the detecting and calibrating device can be moved at will as required; workers do not need to detach the turbidity meter and send the turbidity meter to a laboratory for verification and calibration, verification and calibration of the turbidity meter can be achieved on site, and the efficiency of verification and calibration work of the turbidity meter is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of calibration and verification device, concretely relates to a portable turbidimeter on -the -spot verification calibration device. BACKGROUND

[0002] The statements herein only provide the background of the utility model related, and do not necessarily constitute the prior art.

[0003] With the increasing improvement of people's environmental protection consciousness and living standards, people put forward higher and higher requirements for the quality control of various water bodies and other liquids, and turbidity is one of the most important indicators to measure liquid quality. Turbidity meter is widely used in environmental water quality monitoring, and the current effective verification regulation JJG880-2006 stipulates that different concentrations of standard solution should be configured for verification. Since the standard solution needs to be configured with pipette, volumetric flask, zero turbidity water and other supporting equipment, the measuring instrument can only be sent to the customer for inspection. In reality, the customer's instrument is used almost every day, and the daily work of the customer brings many inconveniences.

[0004] In the prior art, Chinese utility model patent CN203299119U discloses an online self-calibration turbidity meter system, which is composed of a light source, a measuring light detector, a calibration light detector, a reflection and transmission component, a liquid to be measured, and corresponding light path channels, electronic signal amplification, processing circuit and mechanical part. The device has many parts, and the positions of the light source, the measuring light detector, the calibration light detector and the reflection and transmission component need to meet certain positional relationship in the use process, which is complex to operate and brings inconvenience to the calibration process of the turbidity meter. In addition, the device cannot be carried conveniently, and cannot be used for on-site verification and calibration of the turbidity meter as needed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of portable turbidimeter on-the-spot verification calibration device, can realize on-site verification and calibration to turbidity meter, with the advantages of simple structure, easy operation, easy to carry, improve the verification and calibration efficiency of turbidity meter.

[0006] In order to achieve the above purpose, the utility model is realized by the following technical scheme:

[0007] Firstly, the embodiment of the utility model provides a kind of portable turbidimeter on-the-spot verification calibration device, including box body, the inside of the box body is divided into two layers by partition, wherein, a plurality of storage grids are arranged in upper layer, foam lining is arranged in the storage grid, storage hole is reserved on the foam lining, the storage hole is used to place turbidity standard solution, beaker, quantitative adjustable pipette and volumetric flask;Lower layer is used as zero turbidity water containing box.

[0008] As a further technical solution, the storage compartment is provided with four compartments, wherein the first compartment is used to place the turbidity standard solution and beaker, the second compartment is used to place the quantitative adjustable pipette, and the third and fourth compartments are used to place volumetric flasks, and multiple volumetric flasks are provided.

[0009] As a further technical solution, the zero-turbidity water container is connected to the zero-turbidity water outlet pipe via a flow-adjustable water pump, and the zero-turbidity water outlet pipe is inverted L-shape.

[0010] As a further technical solution, the zero-turbidity water outlet pipe is connected to the upper surface of the partition and passes through the upper layer of the tank. The outlet end of the zero-turbidity water outlet pipe adopts a retractable structure.

[0011] As a further technical solution, a level gauge is installed on the zero-turbidity water container.

[0012] As a further technical solution, a zero-turbidity water filling pipe is installed on the zero-turbidity water container.

[0013] As a further technical solution, when zero-turbidity water is not being added, the inlet of the zero-turbidity water filling pipe is sealed by a piston.

[0014] As a further technical solution, the shape of the storage hole matches the shape of the item placed on it.

[0015] As a further technical solution, the top of the box is hinged to the box door, and a handle is provided on the box door.

[0016] As a further technical solution, the bottom of the box is equipped with casters.

[0017] The beneficial effects of the above-described embodiments of this utility model are as follows:

[0018] This utility model discloses a portable on-site calibration device for turbidimeters. It integrates pipettes, volumetric flasks, zero-turbidity water, and other components used for calibrating turbidimeters into a box structure. Foam lining provides support and protection for each component. This calibration device can be moved freely as needed, eliminating the need for staff to disassemble the turbidimeter and send it to the laboratory for calibration. On-site calibration of the turbidimeter can be achieved, thus improving the efficiency of turbidimeter calibration work.

[0019] This utility model discloses a portable turbidity meter on-site verification and calibration device, which includes a housing. The housing is divided into two layers. The upper layer is used to place components such as pipettes and volumetric flasks, while the lower layer is used to store zero-turbidity water. A water pump and a zero-turbidity water outlet pipe supply zero-turbidity water from the lower layer to the upper layer for the preparation of standard solutions of different concentrations. The upper layer can also serve as a workbench for preparing standard solutions. This verification and calibration device has the advantages of simple structure and convenient operation. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the structure of the portable turbidimeter on-site verification and calibration device of this utility model.

[0022] The diagram is for illustrative purposes only.

[0023] The components include: 1. Box body; 2. First storage compartment; 3. Second storage compartment; 4. Third storage compartment; 5. Fourth storage compartment; 6. Zero turbidity water container; 7. Zero turbidity water filling pipe; 8. Level gauge; 9. Zero turbidity water outlet pipe; 10. Box door; 11. Adjustable quantitative pipette; 12. Volumetric flask; 13. Foam liner; 14. Adjustable flow water pump; 15. Beaker; 16. Turbidity standard solution. Detailed Implementation

[0024] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] Example 1

[0026] In a typical embodiment of this utility model, such as Figure 1 As shown, a portable turbidity meter on-site verification and calibration device is provided, including a housing 1. The interior of the housing 1 is divided into two layers by a partition. The upper layer is provided with multiple storage compartments, and each storage compartment is lined with a foam liner 13. The foam liner 13 has reserved storage holes for placing bottles containing turbidity standard solutions 16, beakers 15, quantitative adjustable pipettes 11, and volumetric flasks 12. The lower layer serves as a zero-turbidity water container 6.

[0027] Furthermore, four storage compartments are provided. The first storage compartment 2 is used to place the turbidity standard solution 16 and the beaker 15. The second storage compartment 3 is used to place the quantitative adjustable pipette 11. The third storage compartment 4 and the fourth storage compartment 5 are used to place the volumetric flasks 12. Multiple volumetric flasks are provided. In one specific embodiment of this example, three volumetric flasks 12 are placed in the third storage compartment 4 and the fourth storage compartment 5 respectively, so as to realize the preparation of standard solutions of various concentrations.

[0028] Furthermore, the zero-turbidity water container 6 is connected to the zero-turbidity water outlet pipe 9 via the flow-adjustable water pump 14. The zero-turbidity water outlet pipe 9 is inverted L-shape. It is connected to the upper surface of the partition and passes through the upper layer of the container 1. The outlet end of the zero-turbidity water outlet pipe 9 adopts a telescopic structure, and the outlet of the zero-turbidity water outlet pipe 9 is set with a certain angle bevel. The telescopic structure can straighten the zero-turbidity water outlet pipe 9 to the required position. The flow-adjustable water pump 14 provides power to transport the zero-turbidity water to the required position.

[0029] In this embodiment, a level gauge 8 is installed on the zero-turbidity water container 6 to monitor the level of zero-turbidity water in the container 6. Furthermore, a zero-turbidity water filling pipe 7 is installed on the zero-turbidity water container 6. When the level gauge 8 detects that the level of zero-turbidity water in the container 6 is too low, zero-turbidity water is added to the container 6 through the zero-turbidity water filling pipe 7. When zero-turbidity water is not being added, the inlet of the zero-turbidity water filling pipe 7 is sealed by a piston to ensure that the zero-turbidity water is not contaminated.

[0030] In this embodiment, the shape of the placement hole matches the shape of the item placed therein, and the foam liner provides support for the item, preventing damage to the portable turbidimeter on-site calibration device during handling or transportation.

[0031] In this embodiment, the quantitative adjustable pipette 11 adopts an existing structure, which can accurately measure liquid and ensure the accuracy of the concentration of the prepared standard solution.

[0032] In this embodiment, to facilitate the use of the calibration device, the top of the housing 1 is hinged to the housing door 10, the housing door 10 is provided with a handle, and the bottom of the housing is equipped with casters.

[0033] The portable turbidimeter on-site verification and calibration device provided in this embodiment, taking the verification and calibration of instrument indication error as an example, will be briefly described in terms of its usage process:

[0034] The JJG880-2006 turbidity meter verification procedure stipulates that the verification and calibration of the instrument's indication error must be performed within the upper limit of the measurement range of no more than 50 NTU, selecting five measurement points evenly. This requires preparing five turbidity standard solutions of different concentrations. The national first-class standard material GBW12001 has a concentration of 400 NTU and needs to be diluted before use. Taking 10, 20, 30, 40, and 50 NTU as examples: First, use a water pump to draw a certain amount of zero-turbidity water into a beaker. Use a quantitative adjustable pipette to draw 1.25 mL of the standard material and transfer it to a 50 mL volumetric flask. Pour the zero-turbidity water from the beaker into the volumetric flask and dilute to volume. This completes the preparation of a 10 NTU standard solution. Shake thoroughly and wait for use. Similarly, drawing 2.5 mL, 3.75 mL, 5 mL, and 6.25 mL of the standard material can sequentially prepare 20, 30, 40, and 50 NTU standard solutions. After all solutions are prepared, verification and calibration can be carried out. After completing the verification and calibration work, rinse the volumetric flasks and pipettes with zero turbidity water, drain the water, and put them back in their original positions.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable turbidimeter on-site calibration device, characterized in that, The container includes a housing, the interior of which is divided into two layers by a partition. The upper layer has multiple storage compartments, each lined with a foam liner. The foam liner has pre-drilled holes for storing turbidity standard solutions, beakers, adjustable pipettes, and volumetric flasks. The lower layer serves as a zero-turbidity water container. The zero-turbidity water holding tank is connected to the zero-turbidity water outlet pipe via an adjustable flow water pump, and the zero-turbidity water outlet pipe is in an inverted L-shape. The zero-turbidity water outlet pipe is connected to the upper surface of the partition and passes through the upper layer of the box. The outlet end of the zero-turbidity water outlet pipe adopts a telescopic structure. The zero-turbidity water container is equipped with a zero-turbidity water filling pipe; Zero-turbidity water is supplied from the lower layer to the upper layer through a water pump and a zero-turbidity water outlet pipe for the preparation of standard solutions of different concentrations. The upper layer can be used as a workbench for standard solution preparation, enabling on-site verification and calibration of the turbidity meter, thereby improving the efficiency of turbidity meter verification and calibration.

2. The portable turbidimeter on-site calibration device as described in claim 1, characterized in that, The storage compartment has four compartments. The first compartment is used to place turbidity standard solutions and beakers, the second compartment is used to place quantitative adjustable pipettes, and the third and fourth compartments are used to place volumetric flasks. Multiple volumetric flasks are provided.

3. The portable turbidimeter on-site calibration device as described in claim 1, characterized in that, The zero-turbidity water container is equipped with a level gauge.

4. The portable turbidimeter on-site calibration device as described in claim 1, characterized in that, When zero-turbidity water is not being added, the inlet of the zero-turbidity water filling pipe is sealed by a piston.

5. The portable turbidimeter on-site calibration device as described in claim 1, characterized in that, The shape of the storage hole matches the shape of the item placed inside.

6. The portable turbidimeter on-site calibration device as described in claim 1, characterized in that, The top of the box is hinged to the box door, and the box door is equipped with a handle.

7. The portable turbidimeter on-site calibration device as described in claim 1, characterized in that, The bottom of the box is equipped with casters.

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