A constant-temperature sampling device for high-salt water sample anti-crystallization

Abstract

The utility model provides a kind of for high salt water sample prevents crystallization constant temperature sampling device, belong to environmental monitoring field, including shell, control module is installed in the shell inner cavity, the top of shell is rotationally equipped with sample carrier, be equipped with several holes and grooves for placing sample bottle on the sample carrier, the bottom of each hole and groove is equipped with constant temperature component, the constant temperature component is electrically connected with control module, the bottom of sample carrier is fixedly installed with heat-conducting bottom plate, the bottom of heat-conducting bottom plate is fixedly installed with heat preservation board.This constant temperature sampling device can provide constant temperature storage environment similar to sampling point, prevent salt in sample from crystallizing, realize that sample composition is stable before detection, improve the accuracy and repeatability of detection data.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring, specifically to a constant temperature sampling device for preventing crystallization in high saline samples. Background Technology

[0002] In scenarios such as lithium extraction from salt lakes, the collected brine samples often contain large amounts of lithium, magnesium, calcium, and sulfate ions. These ions are highly susceptible to crystallization under temperature changes, affecting the accuracy of subsequent ion concentration detection and even clogging the detection pipeline. Currently, laboratories often use room temperature incubation or simple temperature control for samples, which cannot effectively maintain the same low temperature as the sampling point, posing a risk of sample composition alteration. Therefore, we propose a constant-temperature sampling device for preventing crystallization in high-salinity brine samples. Utility Model Content

[0003] The purpose of this invention is to provide a constant temperature sampling device for preventing crystallization in high saline samples, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a constant temperature sampling device for preventing crystallization in high saline samples, including a shell, a control module installed in the inner cavity of the shell, a sample carrier plate rotatably mounted on the top of the shell, a plurality of slots for placing sample bottles on the sample carrier plate, a constant temperature component at the bottom of each slot, the constant temperature component being electrically connected to the control module, a heat-conducting base plate fixedly mounted on the bottom of the sample carrier plate, and a heat-insulating plate fixedly mounted on the bottom of the heat-conducting base plate.

[0005] Specifically, the temperature control component includes a temperature sensor, a semiconductor cooling element, and a fan. The temperature sensor is electrically connected to the control module, the semiconductor cooling element is electrically connected to the control module, and the fan is electrically connected to the control module. The temperature sensor, the semiconductor cooling element, and the fan are all mounted on a thermally conductive base plate.

[0006] Specifically, the semiconductor cooling element is a thermoelectric cooler.

[0007] Specifically, the temperature sensor is an NTC temperature sensor.

[0008] Specifically, the control module uses a PID temperature control logic board.

[0009] Specifically, the surface of the shell is provided with a nanoscale hydrophobic coating.

[0010] Compared with the prior art, the present invention has the following technical effects: In this invention, the isothermal sampling device can provide a constant temperature storage environment similar to the sampling point, preventing the crystallization of salt components in the sample, thus stabilizing the sample composition before testing and improving the accuracy and repeatability of the test data. Furthermore, this isothermal sampling device supports various bottle types, offering strong compatibility; also, its compact structure allows for seamless integration with automated laboratory testing equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the constant temperature sampling device according to an embodiment of the present invention; Figure 2 This is a schematic diagram showing the connection between the sample tray, the thermally conductive base plate, and the insulation plate in an embodiment of this utility model. Figure 3 This is a schematic diagram of the control of the constant temperature component in an embodiment of this utility model.

[0012] In the diagram: 1. Housing, 2. Control module, 3. Sample tray, 4. Groove, 5. Thermally conductive base plate, 6. Insulation plate, 7. Temperature sensor, 8. Thermoelectric cooling element, 9. Fan, 10. Sample bottle. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1 to 3 This embodiment provides a constant-temperature sampling device for preventing crystallization in high-salinity water samples. This device is suitable for the sample transition between water sample collection and laboratory analysis in complex environments such as salt lakes and mining areas. For example, it can be used for temporary constant-temperature storage of brine samples from salt lakes to prevent crystallization of components such as lithium and boron; and for constant-temperature pretreatment of laboratory environmental samples before testing. This device can also be extended for applications such as maintaining small samples in the cold chain of pharmaceuticals and maintaining the temperature of precision reagents.

[0015] Specifically, this constant-temperature sampling device includes a housing 1, which is a rectangular stainless steel shell. A control module 2 is installed inside the housing 1. The control module 2 uses a PID temperature control logic board and is used for data processing and controlling the actions of various components. A sample carrier plate 3 is rotatably mounted on the top of the housing 1. The sample carrier plate 3 is fixedly mounted on a rotary mechanism, which is installed inside the housing 1. The rotary mechanism can be any existing conventional sampling device rotary mechanism, and will not be described in detail here. The sampling probe of this constant-temperature sampling device is detachably mounted on a lifting mechanism, allowing for probe replacement as needed. The sampling probe is located above the sample carrier plate 3, and the lifting mechanism can move the sampling probe up and down. The lifting mechanism can be any existing conventional sampling device lifting mechanism, and will not be described in detail here.

[0016] Specifically, a thermally conductive base plate 5 is fixedly installed at the bottom of the sample tray 3, which is used for heat conduction. An insulation plate 6 is fixedly installed at the bottom of the thermally conductive base plate 5. The insulation plate 6 is made of at least one of high-performance thermal insulation foam or aerogel material, with a thermal conductivity of less than 0.02 W / m·K. The insulation plate 6 can reduce environmental heat exchange, keep the pores 4 at a constant temperature, and provide a constant temperature storage temperature for the sample vial 10 containing the sample.

[0017] Specifically, the sample tray 3 adopts a multi-slot design, with several slots 4. In this embodiment, 6-12 slots 4 are arranged circumferentially along the sample tray 3. The slots 4 are used to accommodate sample vials 10 containing samples. The sample vials 10 can be made of plexiglass or stainless steel. A temperature control component is installed at the bottom of each slot 4. The temperature control component provides a constant temperature storage environment similar to that of the sampling point. The temperature control component is electrically connected to the control module 2, which can control the temperature provided by the temperature control component.

[0018] Specifically, the temperature control assembly includes a temperature sensor 7, a semiconductor cooling element, and a fan 9. The temperature sensor 7, the semiconductor cooling element, and the fan 9 are all electrically connected to the control module 2. All three components are mounted on the thermally conductive base plate 5. The semiconductor cooling element is a thermoelectric cooler 8, model TEC1-12706, which can lower the sample vial 10 to the target temperature within 15 minutes and maintain a constant temperature. The temperature sensor 7 is an NTC temperature sensor, capable of acquiring the temperature at the bottom of the sample and then transmitting the data to the control module 2. In this embodiment, the control module 2 is wirelessly connected to the temperature sensor 7, the thermoelectric cooler 8, and the fan 9.

[0019] Specifically, during operation, temperature sensor 7 monitors the temperature at the bottom of the bottle and feeds the temperature data back to control module 2. Control module 2 controls the operation of thermoelectric cooling element 8 and fan 9 based on the temperature data, which, together with heat-conducting base plate 5, quickly maintains the groove 4 at the set temperature (0-10℃).

[0020] Specifically, operators can set the temperature range and adjust the target temperature via the LCD panel or PC. Furthermore, this constant temperature sampling device has a USB or RS485 communication interface for temperature data recording or remote monitoring; all temperature data is recorded in real time and can be exported.

[0021] Specifically, the surface of the housing 1 is coated with a nano-scale hydrophobic coating to prevent the equipment from developing salt and alkali during long-term use.

[0022] Specifically, the working principle of this utility model is as follows: First, the operator sets the temperature, and then places the sample bottle 10 containing the collected sample into the groove 4. The temperature sensor 7 monitors the temperature at the bottom of the bottle in real time and transmits the temperature monitoring data to the control module 2. The control module 2 controls the thermoelectric cooling element 8 and the fan 9 to operate according to the temperature data. Together with the heat-conducting base plate 5, the groove 4 is quickly maintained at the set temperature, providing a constant temperature storage environment for the sample bottle 10 containing the sample, similar to the sampling point.

[0023] Specifically, in this invention, the isothermal sampling device can provide a constant temperature storage environment similar to the sampling point, preventing the crystallization of salt components in the sample, thus stabilizing the sample composition before testing and improving the accuracy and repeatability of the test data. Furthermore, this isothermal sampling device supports various bottle types and has strong compatibility; also, its compact structure allows for seamless integration with automated laboratory testing equipment.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A constant-temperature sampling device for preventing crystallization in high-salinity water samples, characterized in that, The device includes a housing (1), a control module (2) is installed inside the housing (1), a sample carrier plate (3) is rotatably provided on the top of the housing (1), the sample carrier plate (3) is provided with a number of slots (4) for placing sample bottles (10), a constant temperature component is provided at the bottom of each slot (4), the constant temperature component is electrically connected to the control module (2), a heat-conducting base plate (5) is fixedly installed at the bottom of the sample carrier plate (3), and a heat-insulating plate (6) is fixedly installed at the bottom of the heat-conducting base plate (5).

2. The isothermal sampling device for preventing crystallization in high-salinity water samples according to claim 1, characterized in that, The constant temperature component includes a temperature sensor (7), a semiconductor cooling element and a fan (9). The temperature sensor (7) is electrically connected to the control module (2), the semiconductor cooling element is electrically connected to the control module (2), and the fan (9) is electrically connected to the control module (2). The temperature sensor (7), the semiconductor cooling element and the fan (9) are all mounted on the thermally conductive base plate (5).

3. The isothermal sampling device for preventing crystallization in high-salinity water samples according to claim 2, characterized in that, The semiconductor cooling element is a thermoelectric cooling chip (8).

4. The isothermal sampling device for preventing crystallization in high-salinity water samples according to claim 2, characterized in that, The temperature sensor (7) is an NTC temperature sensor.

5. The isothermal sampling device for preventing crystallization in high-salinity water samples according to claim 1, characterized in that, The control module (2) adopts a PID temperature control logic board.

6. The isothermal sampling device for preventing crystallization in high-salinity water samples according to claim 1, characterized in that, The surface of the shell (1) is provided with a nano-scale hydrophobic coating.

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