A digestion and thermostatic reaction integrated module structure

Abstract

The utility model discloses a kind of digestion and constant temperature reaction integrated module structure, belong to water quality detection technical field.The digestion and constant temperature reaction integrated module structure includes base, the base includes first temperature zone and second temperature zone;Digestion channel, the digestion channel is embedded in the first temperature zone;Reaction channel, the reaction channel is connected with the digestion channel, and the reaction channel is embedded in the second temperature zone;Heating structure, the heating structure is installed in the base.The outlet of digestion channel is connected with the inlet of reaction channel, eliminates intermediate connecting pipeline, sample digestion can immediately enter reaction stage after, greatly shorten the analysis cycle, by reducing pipeline connection point, leakage and jam risk are avoided.Multiple structure height integration in a module, greatly reduce the physical size and weight of module, provide the basis for the miniaturization, light weight design of complete machine.Compact structure reduces heat loss, reduces total energy consumption.

Description

Technical Field

[0001] This utility model relates to an integrated module structure for digestion and constant temperature reaction, belonging to the field of water quality testing technology. Background Technology

[0002] Total phosphorus is a key indicator for evaluating the degree of eutrophication of water bodies. In the automatic monitoring of total phosphorus, water samples usually need to undergo high temperature and high pressure digestion to convert various forms of phosphorus into orthophosphate, which then reacts chemically with a colorimetric reagent under specific constant temperature conditions, and is finally measured by photometry.

[0003] In existing total phosphorus monitors, the digestion unit and the isothermal reaction unit are usually two separate components connected by pipelines. However, this split design has the following drawbacks: it is bulky and complex, occupying a large amount of internal space and hindering miniaturization and integration; it has low thermal efficiency and high energy consumption, as the high-temperature heat generated by the digestion unit is easily lost and cannot be utilized by the reaction unit. Furthermore, the sample liquid from the high-temperature digestion unit undergoes uncontrollable temperature changes as it flows through long pipelines to the isothermal reaction unit, potentially requiring secondary heating or cooling, increasing the system's energy consumption and complexity; moreover, the analysis time is long, and the response is lag-prone, as the split structure results in a long sample transport path, increasing the sample analysis cycle and reducing detection efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an integrated module structure for digestion and isothermal reaction, which solves the problems of existing split-type total phosphorus monitors being bulky, complex in structure, occupying a large amount of internal space, which is not conducive to miniaturization and integration of the instrument; having low thermal efficiency, high energy consumption, long analysis time, and slow response.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] This utility model provides an integrated module structure for digestion and isothermal reaction, including:

[0007] The substrate includes a first temperature zone and a second temperature zone;

[0008] A digestion channel is embedded within the first temperature zone;

[0009] A reaction channel, which is connected to the digestion channel, is embedded within the second temperature zone;

[0010] A heating structure is installed in the substrate.

[0011] In one embodiment of this utility model, the first temperature zone is a high-temperature zone, and the second temperature zone is a constant-temperature zone.

[0012] In one embodiment of this utility model, the heating structure includes a heating rod and a heating element, the heating rod being embedded in the first temperature zone and the heating element being installed in the second temperature zone.

[0013] In one embodiment of this utility model, the heating element is a thin-film heating element.

[0014] In one embodiment of this invention, the digestion channel is a spiral coil structure, and at least one digestion channel is provided. This enhances heat transfer and prolongs the reaction time.

[0015] In one embodiment of this utility model, the reaction channel is a spiral coil structure, and at least one reaction channel is provided. The number of reaction channels is adapted to the number of digestion channels.

[0016] In one embodiment of this utility model, a sensing element is included, which is mounted in the substrate.

[0017] In one embodiment of this utility model, there are two sensing elements, which are respectively installed in the first temperature zone and the second temperature zone.

[0018] In one embodiment of this invention, an isolation structure is included, located between the first temperature zone and the second temperature zone. The isolation structure can be an air duct or an insulating material, capable of preventing excessive heat conduction from the first temperature zone to the second temperature zone.

[0019] In one embodiment of this invention, a housing is included, and the substrate is installed inside the housing. The housing is a heat-insulating structure, which can reduce heat loss.

[0020] The beneficial effects of this utility model are as follows:

[0021] This invention provides an integrated modular structure for digestion and isothermal reaction. This modular structure includes a substrate, a digestion channel, a reaction channel, a heating structure, and a sensing element. The outlet of the digestion channel is connected to the inlet of the reaction channel, eliminating intermediate connecting pipes. After sample digestion, the sample can immediately enter the reaction stage, significantly shortening the analysis cycle and reducing pipe connection points. This reduces the risk of potential leakage and blockage, and improves the long-term stability and reliability of the instrument. The digestion channel, reaction channel, heating structure, and sensing element are all integrated into the substrate, with multiple structures highly integrated into a single module. This greatly reduces the module's physical size and weight, providing a foundation for miniaturization and lightweight design of the entire instrument. Furthermore, the compact structure reduces heat loss, enabling the transfer of some heat from the high-temperature zone to the low-temperature zone, thus reducing overall energy consumption. In addition, precise and stable zoned temperature control ensures the reliability of chemical reaction conditions, improving the accuracy and repeatability of measurement results. Attached Figure Description

[0022] Figure 1 An exploded view of the integrated digestion and isothermal reaction module structure provided in this embodiment of the utility model.

[0023] Figure 2 A cross-sectional view of the integrated digestion and isothermal reaction module structure provided in this embodiment of the utility model.

[0024] In the picture:

[0025] 1. Matrix; 11. First temperature zone; 12. Second temperature zone; 2. Digestion channel; 3. Reaction channel; 4. Heating structure; 41. Heating rod; 42. Heating element; 5. Sensing element; 6. Outer shell; 7. Isolation structure. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] like Figures 1 to 2 As shown, this application provides an integrated digestion and isothermal reaction module structure, which includes a substrate 1, a digestion channel 2, a reaction channel 3, a heating structure 4, and a sensing element 5. The substrate 1 is the central core area. The digestion channel 2 has a spiral coil structure, which enhances heat transfer and extends the reaction time; the digestion channel 2 is embedded in the substrate 1. The reaction channel 3 is also a spiral coil structure, located on one side of the digestion channel 2, and installed in the substrate 1. The outlet of the digestion channel 2 is connected to the inlet of the reaction channel 3. The heating structure 4 is installed in the substrate 1 and can heat the areas where the digestion channel 2 and reaction channel 3 are located. The sensing element 5 is also installed in the substrate 1 and can detect the temperature of the areas where the digestion channel 2 and reaction channel 3 are located. The outer shell 6 consists of upper and lower parts, with the entire substrate 1 placed inside. The outer shell 6 is an insulating structure, which reduces heat loss. By integrating digestion channel 2 and reaction channel 3 into the matrix 1, the entire digestion and isothermal reaction module structure is made more compact, combining the two core functional units into one, greatly reducing the physical size and weight of the module, and providing a foundation for the miniaturization and weight reduction of the entire instrument. The connection between digestion channel 2 and reaction channel 3 eliminates intermediate connecting pipelines, allowing the sample to immediately enter the reaction stage after digestion, greatly shortening the analysis cycle.

[0030] In some embodiments, the interior of the substrate 1 is divided into two temperature zones: a first temperature zone 11 and a second temperature zone 12. The first temperature zone 11 corresponds to the region where the digestion channel 2 is located and is a high-temperature zone; the second temperature zone 12 corresponds to the region where the reaction channel 3 is located and is a constant-temperature zone. The heating structure 4 includes a heating rod 41 and a heating element 42. The heating rod 41 is embedded in the first temperature zone 11 and is a high-power heating rod, serving as a high-temperature heater for the first temperature zone 11. Under the action of the heating rod 41, the temperature of the first temperature zone 11 can be precisely controlled at the required temperature, such as a high temperature of 125°C, at which the water sample can be rapidly and thoroughly digested. The heating element 42 is a thin-film heating element. The heating element 42 is attached to the surface of the second temperature zone 12. The heating element 42 can serve as a constant temperature heater for the second temperature zone 12, keeping the second temperature zone 12 at a constant temperature. For example, the heating element 42 can be used to precisely control the second temperature zone 12 at a constant temperature of 37°C, allowing the mixture to complete a stable color development reaction.

[0031] In some embodiments, the sensing element 5 is a temperature sensor. The sensing element 5 in the first temperature zone 11 is a high-temperature temperature sensor, and the second temperature zone 12 is also equipped with an independent temperature sensor 5 for detecting the temperature in the second temperature zone 12. An isolation structure 7 is provided between the first temperature zone 11 and the second temperature zone 12. The isolation structure 7 can be an air duct or a heat insulation material, which can prevent excessive heat conduction from the first temperature zone 11 to the second temperature zone 12.

[0032] Optionally, there can be one or more digestion channels 2, located within the first temperature zone 11 of the substrate 1, and one or more reaction channels 3, located within the second temperature zone 12 of the substrate 1. The outlet of the digestion channel 2 is connected to the inlet of the reaction channel 3, so that the digested liquid can flow directly from the outlet of the digestion channel 2 into the reaction channel 3. The number of reaction channels 3 is adapted to the number of digestion channels 2. An ultraviolet lamp can also be installed on one side of the digestion channel 2 for auxiliary catalysis and digestion.

[0033] Alternatively, the digestion channel 2 can also be a serpentine microchannel structure, which can increase the residence time of the fluid within a limited volume.

[0034] Alternatively, the heating rod 41 can be an embedded heating rod or a ceramic heating element.

[0035] Optionally, the substrate 1 is made of aluminum, copper, or other alloy materials.

[0036] The working principle of this invention is as follows: The mixture of the water sample to be tested and the digestion reagent enters the digestion channel 2 through the inlet. Under the action of the heating rod 41, the temperature in the first temperature zone 11 is precisely controlled at 125℃. The temperature of this zone can be detected by the sensing element 5 to determine whether the required temperature has been reached. The water sample is quickly and thoroughly digested in this zone. After digestion, the liquid flows from the outlet of the digestion channel 2 into the inlet of the reaction channel 3, where it mixes with the colorimetric reagent. Under the action of the heating plate 42, the temperature in the second temperature zone 12 is precisely controlled at a constant temperature of 37℃, where the mixture completes a stable colorimetric reaction. After the reaction, the liquid flows out from the outlet of the substrate 1 and enters the subsequent photometer for detection. The entire process is continuous and rapid, and is completed within a single, highly integrated module. This module has a compact structure and is highly integrated, greatly reducing the physical size and weight of the module, providing a basis for the miniaturization and lightweight design of the entire device. The compact structure reduces heat loss and enables the transfer of some heat from the high-temperature zone to the low-temperature zone, reducing the overall energy consumption. Digestion channel 2 is directly connected to reaction channel 3, eliminating intermediate connecting pipes. Samples can immediately enter the reaction stage after digestion, significantly shortening the analysis cycle and reducing pipe connection points. This reduces potential leakage and blockage risks, while also improving the long-term stability and reliability of the instrument. Precise and stable zoned temperature control ensures the reliability of chemical reaction conditions, improving the accuracy and repeatability of measurement results.

[0037] This document uses specific embodiments to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A digestion and isothermal reaction integrated module structure, characterized in that, include: The substrate (1) includes a first temperature zone (11) and a second temperature zone (12); The digestion channel (2) is embedded in the first temperature zone (11); A reaction channel (3) is connected to the digestion channel (2), and the reaction channel (3) is embedded in the second temperature zone (12); Heating structure (4) is installed inside the substrate (1).

2. The integrated digestion and isothermal reaction module structure according to claim 1, characterized in that, The first temperature zone (11) is a high temperature zone, and the second temperature zone (12) is a constant temperature zone.

3. The integrated digestion and isothermal reaction module structure according to claim 1, characterized in that, The heating structure (4) includes a heating rod (41) and a heating element (42). The heating rod (41) is embedded in the first temperature zone (11), and the heating element (42) is installed in the second temperature zone (12).

4. The integrated digestion and isothermal reaction module structure according to claim 3, characterized in that, The heating element (42) is a thin-film heating element.

5. The integrated digestion and isothermal reaction module structure according to claim 1, characterized in that, The digestion channel (2) is a spiral coil structure, and at least one digestion channel (2) is provided.

6. The integrated digestion and isothermal reaction module structure according to claim 5, characterized in that, The reaction channel (3) is a spiral coil structure. At least one reaction channel (3) is provided. The number of reaction channels (3) is adapted to the number of digestion channels (2).

7. The integrated digestion and isothermal reaction module structure according to claim 1, characterized in that, It includes a sensing element (5) which is mounted in the substrate (1).

8. The integrated digestion and isothermal reaction module structure according to claim 7, characterized in that, The number of the sensing elements (5) is two, which are respectively installed in the first temperature zone (11) and the second temperature zone (12).

9. The integrated digestion and isothermal reaction module structure according to claim 1, characterized in that, It includes an isolation structure (7) located between the first temperature zone (11) and the second temperature zone (12).

10. The integrated digestion and isothermal reaction module structure according to any one of claims 1-9, characterized in that, Includes a housing (6), and the base (1) is installed inside the housing (6).

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