A multi-channel parallel reaction device for a fully automatic water quality analyzer

Abstract

The utility model discloses a kind of multichannel parallel reaction devices for full-automatic water quality analyzer, comprising: reaction module, including multiple independent reaction units;Colorimetric quantitative detection module is connected with multiple independent reaction units by multiple control valves;Multiple driving members are connected with multiple control valves respectively, to drive the reaction liquid in reaction unit to flow to colorimetric quantitative detection module;Control module is connected with reaction module, colorimetric quantitative detection module and multiple driving members, control valve. Multiple independent reaction units provided by the utility model can carry out sample reaction simultaneously, shorten overall detection time, improve the efficiency of water quality detection reaction stage, increase the sample processing amount in unit time, control module controls driving member, multiple independent reaction units and colorimetric quantitative detection module are driven by multiple-way valve, the operation process of equipment is optimized, the waiting time of sample detection is reduced, and the utilization of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, and in particular to a multi-channel parallel reaction device for a fully automatic water quality analyzer. Background Technology

[0002] Currently, with the increasing demand for water quality testing in the water industry, the requirements for the performance and functionality of water quality analysis instruments are also rising. Traditional water quality testing methods and instruments are gradually becoming insufficient to meet the needs for rapid, accurate, and efficient testing. Automated water quality analyzers have become an important direction for industry development, as they can automate a series of operations such as sample processing and testing, reducing manual intervention and improving testing efficiency and accuracy. However, the following three problems exist:

[0003] 1. Low detection efficiency. Traditional single-channel water quality analyzers use a sequential processing mode, and the total detection time is calculated using the formula: t 总 =N×(t) 反应 +t 测量 The formula is: N = N(N-N), where N is the number of samples. This means that each sample must undergo the entire reaction and detection process, resulting in extremely low detection efficiency. For example, if the reaction takes 30 minutes and the measurement takes 2 minutes, it would take 320 minutes to detect 10 samples. If the cleaning time after detection is added, this time would be even longer.

[0004] 2. Long waiting time. In traditional instruments, the reagent-sample reaction stage accounts for more than 80% of the equipment's waiting time. Due to the long reaction process, the equipment spends most of its time in a waiting state, severely reducing its efficiency.

[0005] 3. The improvement solutions have significant limitations. Most existing improvement solutions focus on optimizing the detection unit, but fail to effectively address the efficiency bottleneck in the reaction stage. Even if the process time of the detection unit is improved, the low efficiency of the reaction stage still restricts the overall improvement of detection efficiency. Utility Model Content

[0006] Therefore, the purpose of this utility model is to at least partially address the shortcomings of the prior art, thereby proposing a multi-channel parallel reaction device for a fully automated water quality analyzer.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a multi-channel parallel reaction device for a fully automated water quality analyzer, comprising:

[0009] A reaction module, comprising multiple independent reaction units;

[0010] The colorimetric quantitative detection module is connected to multiple independent reaction units via multiple control valves;

[0011] Multiple driving components are connected to multiple independent reaction units to drive the reaction liquid in the multiple independent reaction units to flow into the colorimetric quantitative detection module;

[0012] The control module is connected to the reaction module, the colorimetric quantitative detection module, and multiple drive components and control valves.

[0013] Furthermore, the reaction module includes a hollow outer frame, within which a device body is disposed. The device body includes a heat-conducting component, and multiple reaction through holes are provided through and spaced on the heat-conducting component. Multiple independent reaction units are inserted into the multiple reaction through holes one-to-one. The heat-conducting component also has heating through holes and temperature detection through holes provided through and spaced on the heat-conducting component. A heating element is disposed in the heating through hole, and a temperature detection element is disposed in the temperature detection through hole.

[0014] Furthermore, the heat-conducting component also includes a cooling water channel, and a cooling water inlet and a cooling water outlet are provided on the heat-conducting component. The cooling water inlet and the cooling water outlet are respectively connected to the cooling water channel and are located at the upper and lower ends of the heat-conducting component. The heat-conducting component includes a first heat-conducting sub-component and a second heat-conducting sub-component connected to each other. A sealing member is provided between the first heat-conducting sub-component and the second heat-conducting sub-component, and both are respectively provided with a plurality of interconnected first reaction through holes and second reaction through holes, first heating through holes and second heating through holes, first temperature detection through holes and second temperature detection through holes. The first reaction through holes and the second reaction through holes are connected to form the reaction through holes. The first heating through hole and the second heating through hole are connected to form the heating through hole, and the first temperature detection through hole and the second temperature detection through hole are connected to form the temperature detection through hole; a first cooling water channel and a second cooling water channel are respectively opened inside the opposite side of the first heat-conducting sub-component and the second heat-conducting sub-component, and the first cooling water channel and the second cooling water channel are connected to form the cooling water channel; the cooling water inlet is located at the end of the first heat-conducting sub-component away from the second heat-conducting sub-component and is connected to the first cooling water channel, and the cooling water outlet is located at the end of the second heat-conducting sub-component away from the first heat-conducting sub-component and is connected to the second cooling water channel.

[0015] Furthermore, the device body also includes a first heat insulation component and a second heat insulation component respectively disposed at the upper and lower ends of the heat-conducting component. The first heat insulation component and the second heat insulation component are respectively provided with a plurality of first heat insulation component through holes and second heat insulation component through holes that correspond one-to-one with the plurality of reaction through holes. The plurality of reaction through holes are connected to the plurality of first heat insulation component through holes and second heat insulation component through holes in a one-to-one correspondence. The second heat insulation component is also provided with a third heat insulation component through hole that communicates with the heating through hole. The heating component is sequentially inserted through the heating through hole and the third heat insulation component through hole. The second heat insulation component is also provided with a fourth heat insulation component through hole that communicates with the temperature detection through hole. The temperature detection component is sequentially inserted through the temperature detection through hole and the fourth heat insulation component through hole. A first notch is provided on one side of the first heat insulation component, and a second notch is provided on the side of the second heat insulation component that is symmetrical to the first notch.

[0016] Furthermore, the device body also includes a first firmware and a second firmware. The first firmware and the second firmware are respectively disposed on the side of the first heat insulation component and the second heat insulation component away from the heat conduction component. The first firmware and the second firmware are respectively provided with a plurality of first firmware through holes and second firmware through holes corresponding one-to-one with the plurality of reaction through holes. The first firmware through holes and the second firmware through holes are interconnected with the through holes of the first heat insulation component, the through holes of the second heat insulation component, and the heat conduction through holes. The second firmware is also provided with a third firmware through hole and a fourth firmware through hole that are respectively connected to the through holes of the third heat insulation component and the through holes of the fourth heat insulation component. The heating component is sequentially inserted through the heating through hole, the through hole of the third heat insulation component, and the through hole of the third firmware. The temperature detection component is sequentially inserted through the temperature detection through hole, the through hole of the second heat insulation component, and the through hole of the fourth firmware. The first firmware is also provided with a third notch on the side opposite to the first notch, and the second firmware is also provided with a fourth notch on the side opposite to the second notch.

[0017] Furthermore, the reaction unit is a reaction tube, which includes a main body, a cover on one side of the main body, and a tapered reducing tube on the other side. The tapered reducing tube includes an integrally formed tapered tube and a thin tube. The tapered tube is connected to the main body. The reaction tube passes through the first fastener through hole, the first heat insulation through hole, and the reaction through hole in sequence and is inserted into the second heat insulation through hole.

[0018] Furthermore, the second heat insulation component through hole includes two first openings and second openings with different diameters. The first opening is connected to the second opening, and the first opening is also connected to the reaction through hole. The second opening is also connected to the second fastener through hole. The thin tube is disposed in the first opening and is connected to the second opening. The diameter of the first opening is the same as the outer diameter of the thin tube, and the diameter of the second opening is the same as the diameter of the second fastener through hole and the inner diameter of the thin tube.

[0019] Furthermore, the colorimetric quantitative detection module includes a colorimetric tube, a light source, a filter, and a photodetector. Multiple reaction units are connected to the colorimetric tube through the control valve, and the light source, the filter, and the photodetector are respectively disposed on both sides of the colorimetric tube.

[0020] Furthermore, the plurality of control valves respectively include a first multi-way valve, a second multi-way valve and a third multi-way valve. The first multi-way valve is connected to the cap, the drive unit and the atmosphere of the plurality of reaction tubes. The second multi-way valve is connected to the thin tube, the colorimetric tube, the third multi-way valve and the atmosphere of the plurality of reaction tubes. The third multi-way valve is used to connect reagents, quantitative tubes, cleaning solution tubes and waste liquid tubes. The quantitative tubes are also connected to the drive unit.

[0021] Furthermore, the plurality of driving components respectively include a first driving component, a second driving component, and a third driving component. The first driving component, the second driving component, and the third driving component are all in communication with the atmosphere. The first driving component is connected to the quantitative tube, the second driving component is connected to the first multi-way valve, and the third driving component is connected to the colorimetric tube.

[0022] This invention provides a multi-channel parallel reaction device for a fully automated water quality analyzer, comprising: a reaction module including multiple independent reaction units; a colorimetric quantitative detection module connected to the multiple independent reaction units via multiple control valves; multiple drive components connected to the multiple control valves to drive the reaction liquid in the multiple independent reaction units to flow into the colorimetric quantitative detection module; and a control module connected to the reaction module, the colorimetric quantitative detection module, and the multiple drive components and control valves. The multiple independent reaction units provided by this invention allow for simultaneous sample reaction, shortening the overall detection time, improving the efficiency of the water quality detection reaction stage, increasing the sample processing capacity per unit time, and optimizing the equipment operation process by controlling the drive components and multi-way valves to operate the multiple independent reaction units and the colorimetric quantitative detection module, thereby reducing sample detection waiting time and improving equipment utilization. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the multi-channel parallel reaction device for a fully automatic water quality analyzer according to the present invention.

[0025] Figure 2 This is a cross-sectional view of the main body of the multi-channel parallel reaction device for a fully automatic water quality analyzer according to this utility model.

[0026] Figure 3 This is an exploded view of the reaction module of the multi-channel parallel reaction device for a fully automatic water quality analyzer according to this utility model.

[0027] Figure 4 This is a schematic diagram of the colorimetric quantitative detection module of the multi-channel parallel reaction device for a fully automatic water quality analyzer according to this utility model.

[0028] The reference numerals in the figure are as follows: 1. Reaction module; 11. Reaction tube; 111. Main body; 112. Cover; 113. Tapered reducer tube; 1131. Tapered tube; 1132. Thin tube; 12. Peripheral fastener; 13. Heat-conducting component; 131. First heat-conducting component; 1311. First reaction through-hole; 1312. First heating through-hole; 1313. First temperature detection through-hole; 1314. Cooling water inlet; 132. Second heat-conducting component; 1321. Second reaction through-hole; 1322. Second heating through-hole; 1323. Second temperature detection through-hole; 133. Sealing component; 14. First heat insulation component; 141. First heat insulation component through-hole; 142. First notch; 15. Second heat insulation component; 151. Second heat insulation component through-hole 152. Third heat insulation component through hole; 153. Fourth heat insulation component through hole; 154. Second notch; 16. First fastener; 161. First fastener through hole; 162. Third notch; 17. Second fastener; 171. Second fastener through hole; 172. Third fastener through hole; 173. Fourth fastener through hole; 174. Fourth notch; 2. Colorimetric quantitative detection module; 21. Colorimetric tube; 22. Light source; 23. Filter; 24. Photodetector; 3. Control valve; 31. First multi-way valve; 32. Second multi-way valve; 33. Third multi-way valve; 4. Drive component; 41. First drive component; 42. Second drive component; 43. Third drive component; 5. Cooling water channel; 51. First cooling water channel; 52. Second cooling water channel. Detailed Implementation

[0029] 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.

[0030] It should be noted that the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please refer to Figures 1 to 4 This utility model provides a multi-channel parallel reaction device for a fully automated water quality analyzer, comprising:

[0032] Reaction module 1 includes multiple independent reaction units;

[0033] The colorimetric quantitative detection module 2 is connected to multiple independent reaction units via multiple control valves 3;

[0034] Multiple drive units 4 are connected to multiple control valves respectively to drive the reaction liquid in multiple independent reaction units to flow into the colorimetric quantitative detection module 2;

[0035] The control module is connected to multiple reaction modules 1, colorimetric quantitative detection module 2, multiple drive components 4, and control valves 3.

[0036] In this embodiment, the multi-channel parallel reaction device for the fully automated water quality analyzer includes a reaction module 1, which contains multiple independent reaction units. These multiple independent reaction units allow for simultaneous sample reactions, thereby shortening the overall detection time, improving the efficiency of the water quality detection reaction stage, and increasing the sample processing capacity per unit time. For example, if the multi-channel parallel reaction device of this embodiment is used, the reaction module 1 contains multiple independent reaction units. In this embodiment, five independent reaction units are specifically set. The number of reaction units is not limited and is set according to reagent production requirements. If the reaction time for a certain test is 30 minutes and the measurement time is 2 minutes, detecting five samples through a single channel would take 160 minutes (excluding sample transfer time), while detecting five samples through five independent channels would take 40 minutes (excluding sample transfer time). It is evident that using a multi-channel parallel reaction device can significantly improve detection efficiency.

[0037] In this embodiment, the multi-channel parallel reaction device for the fully automated water quality analyzer also includes a colorimetric quantitative detection module 2. The colorimetric quantitative detection module 2 is connected to multiple independent reaction units via multiple multi-port valves 3, allowing samples from the reaction units to be transferred to the colorimetric quantitative detection module 2 for detection. The colorimetric quantitative detection module 2 is time-division multiplexed, for example, with five independent reaction units, the reaction stages are parallel, while the detection stages are serial. Specifically, in a multi-channel design, the colorimetric quantitative detection module 2 can achieve intensive utilization: waiting for reaction time t - measurement - measurement - measurement - ..., unlike the non-multi-channel design's utilization mode: waiting for reaction time t - measurement - waiting for reaction time t - measurement - waiting for reaction time t..., thereby improving equipment utilization and resource efficiency. The colorimetric quantitative detection module 2 performs quantitative detection of water quality parameters based on the Lambert-Beer method.

[0038] In this embodiment, the multi-channel parallel reaction device for the fully automated water quality analyzer also includes multiple driving components 4 and a control module. The multiple driving components 4 are connected to multiple independent reaction units and a colorimetric quantitative detection module 2 through control valves 3, thereby transferring samples from the reaction units to the colorimetric quantitative detection module 2 and discharging samples from the reaction units and the colorimetric quantitative detection module 2. The control module is used to precisely coordinate the liquid path, temperature control, timing, and detection of the multiple driving components 4 and multiple control valves 3; it can schedule parallel tasks, that is, the control module can control multiple independent reaction units to react samples simultaneously, breaking the traditional single-channel sequential mode; it can also perform time-sharing resource reuse. After the sample reaction in multiple independent reaction units is completed, the control module, through the driving components 4 and control valves 3, sequentially introduces the reaction liquid of each reaction unit into the colorimetric quantitative detection module 2 for detection according to the queue order, realizing efficient utilization of detection resources. The control module can also generate a detection queue based on the order in which the reaction solutions from multiple independent reaction units enter the colorimetric quantitative detection module 2. The reaction solutions are automatically sorted according to their entry order and transferred to the colorimetric quantitative detection module 2 in sequence, avoiding detection conflicts and data misalignment. Specifically, the control module is an STM32F103ZET6 semiconductor chip; however, the specific model of the control module is not limited here and will be set according to actual production needs.

[0039] Furthermore, the reaction module 1 includes a hollow outer component 12, within which a device body is disposed. The device body includes a heat-conducting component 13, on which multiple reaction through holes are disposed at intervals. Multiple independent reaction units are inserted into the multiple reaction through holes one by one. The heat-conducting component 13 also has heating through holes and temperature detection through holes disposed at intervals. A heating element is disposed in the heating through hole, and a temperature detection element is disposed in the temperature detection through hole.

[0040] In this embodiment, the reaction module 1 includes an external fastener 12, which is a hollow column with open bottom and top. Inside, there is also a device body for heat insulation and fixation. The bottom and top of the device body are exposed to the external fastener 12 to connect to the control valve 3, the drive component 4, and the control module.

[0041] The device body includes a heat-conducting component 13. Multiple reaction through-holes are vertically spaced throughout the heat-conducting component 13. These through-holes provide assembly space for multiple independent reaction units, meaning each independent reaction unit is inserted into one of the multiple reaction through-holes. The number of reaction units is the same as the number of reaction through-holes, and the shape of the reaction through-holes matches the shape of the reaction units, allowing the reaction units to pass through and fit snugly against them. For example, if the reaction unit is circular, the reaction through-hole is also circular, and the diameter of the reaction through-hole equals the outer diameter of the reaction unit plus 0.5 mm. The multiple reaction through-holes are evenly spaced on the heat-conducting component 13.

[0042] Specifically, the heat-conducting component 13 is vertically perforated with heating through holes and temperature detection through holes. A heating element is inserted into the heating through hole, providing assembly space for the heating element. Similarly, a temperature detection element is inserted into the temperature detection through hole, providing assembly space for the temperature detection element. The heat-conducting component 13 rapidly and evenly transfers the heat generated by the heating element to the liquid in the reaction unit, while the temperature detection element detects the temperature of the reaction unit. In this embodiment, the heating element is specifically a heating rod, and the temperature detection element is specifically a PT100 temperature sensor. The control module controls whether the heating element and the temperature detection element are operational.

[0043] Furthermore, the heat-conducting component 13 is also provided with a cooling water channel 5, and the heat-conducting component 13 is also provided with a cooling water inlet 1314 and a cooling water outlet. The cooling water inlet 1314 and the cooling water outlet are respectively connected to the cooling water channel 5 and are located at the upper and lower ends of the heat-conducting component 13. The heat-conducting component 13 includes a first heat-conducting sub-component 131 and a second heat-conducting sub-component 132 connected to each other. A sealing member 133 is provided between the first heat-conducting sub-component 131 and the second heat-conducting sub-component 132, and a plurality of interconnected first reaction through holes 1311 and second reaction through holes 1321, first heating through holes 1312 and second heating through holes 1322, first temperature detection through holes 1313 and second temperature detection through holes 1323 are respectively provided through the first reaction through holes 1311 and second reaction through holes 1323. Through hole 1321 is connected to form a reaction through hole, first heating through hole 1312 and second heating through hole 1322 are connected to form a heating through hole, first temperature detection through hole 1313 and second temperature detection through hole 1323 are connected to form a temperature detection through hole; a first cooling water channel 51 and a second cooling water channel 52 are respectively opened inside the opposite side of the first heat-conducting sub-component 131 and the second heat-conducting sub-component 132, and the first cooling water channel 51 and the second cooling water channel 52 are connected to form a cooling water channel 5; cooling water inlet 1314 is located at the end of the first heat-conducting sub-component 131 away from the second heat-conducting sub-component 132 and is connected to the first cooling water channel 51, and cooling water outlet is located at the end of the second heat-conducting sub-component 132 away from the first heat-conducting sub-component 132 and is connected to the second cooling water channel 52.

[0044] In this embodiment, a cooling water channel 5 is also provided inside the heat-conducting component 13. The cooling water channel 5 is located close to the inner sidewall of the heat-conducting component 13. The upper and lower ends of the heat-conducting component 13 in the vertical direction are provided with a cooling water inlet 1314 and a cooling water outlet, and the cooling water inlet 1314 and the cooling water outlet are respectively connected to the cooling water channel 5. That is, the cooling water enters the cooling water channel 5 from the cooling water inlet 1314. When the cooling water in the cooling water channel 5 is heated by cooling the heat-conducting component 13, it is discharged from the cooling water outlet and then continues to enter the cooling water channel 5 from the cooling water inlet 1314, and so on. A heating element is provided inside the heat-conducting component 13. Since cooling is required after heating, a cooling water channel 5 is provided inside the heat-conducting component 13. To ensure that the cooling water only flows within the heat-conducting component 13 and does not flow outside the heat-conducting component 13, the heat-conducting component 13 is divided into a first heat-conducting sub-component 131 and a second heat-conducting sub-component 132 in the vertical direction, thereby facilitating the processing of the cooling water channel 5. Specifically, a first cooling water channel 51 and a second cooling water channel 52 are respectively provided on opposite sides of the first heat-conducting sub-component 131 and the second cooling water channel 52. The first cooling water channel 51 and the second cooling water channel 52 are connected to form the cooling water channel 5, and the cooling water inlet 1314 and the cooling water outlet connected to the cooling water channel 5 are respectively provided on the first heat-conducting sub-component 131 and the second heat-conducting sub-component 132. The cooling water inlet 1314 is located at the end of the first heat-conducting component 131 furthest from the second heat-conducting component 132 and is connected to the first cooling water channel 51. The cooling water outlet is located at the end of the second heat-conducting component 132 furthest from the first heat-conducting component 131 and is connected to the second cooling water channel 52. In other words, the cooling water inlet 1314 and the cooling water outlet are respectively located at the ends of the first heat-conducting component 131 and the second heat-conducting component 132 that are relatively far apart. The control module can control the inflow and outflow of cooling water.

[0045] Specifically, a sealing element 133 is provided between the first heat-conducting component 131 and the second heat-conducting component 132 to achieve the sealing requirements of the heat-conducting component 13. The material of the sealing element 13 is required to withstand a temperature of 200℃. In this embodiment, it can be polytetrafluoroethylene, but this is not limited. Multiple interconnected first reaction through-holes 1311 and 1321, first heating through-holes 1312 and 1322, first temperature detection through-holes 1313 and 1323 are respectively provided on the first heat-conducting component 131 and the second heat-conducting component 132. The first reaction through-holes 1311 and 1321 are interconnected and overlapped to form a reaction through-hole for inserting a reaction unit. The first heating through-holes 1312 and 1322 are interconnected and overlapped to form a heating through-hole for inserting a heating element. The first temperature detection through-holes 1313 and 1323 are interconnected and overlapped to form a temperature detection through-hole for inserting a temperature detection element.

[0046] Furthermore, the device body also includes a first heat insulation component 14 and a second heat insulation component 15 respectively disposed at the upper and lower ends of the heat-conducting component 13. The first heat insulation component 14 and the second heat insulation component 15 are respectively provided with multiple first heat insulation component through holes 141 and 151 corresponding to multiple reaction through holes. The multiple reaction through holes are connected to the multiple first heat insulation component through holes 141 and 151 in a one-to-one correspondence. The second heat insulation component 15 is also provided with a third heat insulation component through hole 152 connected to the heating through hole. The heating component is inserted through the heating through hole and the third heat insulation component through hole 152 in sequence. The second heat insulation component 15 is also provided with a fourth heat insulation component through hole 153 connected to the temperature detection through hole. The temperature detection component is inserted through the temperature detection through hole and the fourth heat insulation component through hole 153 in sequence. A first notch 142 is provided on one side of the first heat insulation component 14, and a second notch 154 is provided on the side of the second heat insulation component 15 opposite to the first notch 142.

[0047] In this embodiment, the device body further includes a first heat insulation component 14 and a second heat insulation component 15. The first heat insulation component 14 and the second heat insulation component 15 are respectively disposed at the upper and lower ends of the heat-conducting component 13. The first heat insulation component 14 is connected and fastened to the first heat-conducting sub-component 131 by screws or other mechanical parts, and the second heat insulation component 15 is connected to the second heat-conducting sub-component 132. The first heat insulation component 14 and the second heat insulation component 15 are used to isolate the heated reaction unit. In order to effectively insulate, both the first heat insulation component 14 and the second heat insulation component 15 are made of heat-insulating cotton, and their thickness is preferably 20 mm and not less than 10 mm.

[0048] Specifically, the first heat insulation component 14 and the second heat insulation component 15 are respectively provided with multiple through holes 141 and 151 in the vertical direction. The through holes 141 and 151 are connected to the multiple reaction through holes one by one, so that the reaction unit can be inserted into the through holes 141, the reaction through holes and the second heat insulation through holes 151 in sequence. The number and shape of the through holes 141 and 151 are the same as the number and shape of the reaction through holes.

[0049] Specifically, the second heat insulation component 15 is further provided with a third heat insulation component through hole 152 and a fourth heat insulation component through hole 153 in the vertical direction. The third heat insulation component through hole 152 is parallel to the heating through hole and is used to provide assembly space for the heating component, that is, the heating component passes through the heating through hole and the third heat insulation component through hole 152 in sequence. The fourth heat insulation component through hole 153 is parallel to the temperature detection through hole and is used to provide assembly space for the temperature detection component, that is, the temperature detection component passes through the temperature detection through hole and the fourth heat insulation component through hole 153 in sequence.

[0050] Specifically, a first notch 142 is provided on one side of the first heat insulation member 14. The first notch 142 serves as an assembly channel for cooling water pipes, allowing cooling water pipes to pass through the first notch 142 and transmit cooling water to the cooling water channel 5 via the cooling water inlet 1314 on the heat conduction member 13. A second notch 154 is provided on the side of the second heat insulation member 15 opposite to the first notch 142 on the first heat insulation member 14. That is, the first notch 142 and the second notch 154 are in a relatively symmetrical direction. The second notch 154 on the second heat insulation member 15 serves as an assembly channel for cooling water pipes, allowing cooling water pipes to connect with the cooling water outlet on the heat conduction member 13 through the second notch 154 and discharge the heated cooling water from the cooling water channel 5.

[0051] Furthermore, the device body also includes a first firmware 16 and a second firmware 17. The first firmware 16 and the second firmware 17 are respectively disposed on the side of the first heat insulation member 14 and the second heat insulation member 15 away from the heat conduction member 13. The first firmware 16 and the second firmware 17 are respectively provided with a plurality of first firmware through holes 161 and second firmware through holes 171 corresponding one-to-one with a plurality of reaction through holes. The first firmware through holes 161 and the second firmware through holes 171 are interconnected with the first heat insulation member through holes 141, the second heat insulation member through holes 151, and the heat conduction through holes; the second firmware 17 The device is also provided with a third fastener through hole 172 and a fourth fastener through hole 173 that are respectively connected to the third heat insulation through hole 152 and the fourth heat insulation through hole 153. The heating element is inserted through the heating through hole, the third heat insulation through hole 152 and the third fastener through hole 172 in sequence. The temperature detection element is inserted through the temperature detection through hole, the second heat insulation through hole 151 and the fourth fastener through hole 173 in sequence. The first fastener 16 is also provided with a third notch 162 on the side opposite to the first notch 142, and the second fastener 17 is also provided with a fourth notch 174 on the side opposite to the second notch 154.

[0052] In this embodiment, the device body further includes a first firmware 16 and a second firmware 17, which are respectively disposed at the top and bottom of the device body. The function of the first firmware 16 and the second firmware 17 is to ensure that the components of the device above or below the device using the multi-channel parallel reaction device are effectively isolated from the device body. Specifically, the first firmware 16 and the second firmware 17 are respectively disposed at the ends of the first heat insulation member 14 and the second heat insulation member 15 that are relatively far apart, that is, the first heat insulation member 14 is disposed between the first firmware 16 and the heat conducting member 13. The function of the first heat insulation member 14 is to isolate the heated reaction unit and the first firmware 16, so that the first firmware 16 is kept at room temperature; the second heat insulation member 15 is disposed between the heat conducting member 13 and the second firmware 17. The function of the second heat insulation member 15 is to isolate the heated reaction unit and the second firmware 17, so that the second firmware 17 is kept at room temperature. The first firmware 16 and the second firmware 17 are made of rigid materials, such as metal or rigid plastic, such as aluminum alloy, with a thickness of not less than 5 mm. The specific materials of the first firmware 16 and the second firmware 17 are not limited here. The outermost fastener 12 on the outermost periphery of the device body serves to insulate heat and fix the first heat insulation component 14 and the second heat insulation component 15 inside the device body.

[0053] Specifically, the first fastener 16 and the second fastener 71 are respectively provided with multiple through holes 161 and 171 in the vertical direction. Each through hole corresponds to one of the multiple reaction through holes for inserting the reaction unit. The first fastener through holes 161 overlap with the first heat insulation through holes 141, and the number and shape of the first fastener through holes 161 match the number and shape of the first heat insulation through holes 141. The second fastener through holes 171 are center-aligned with the second heat insulation through holes 151, and their shape and number are identical.

[0054] Specifically, the second fastener 17 is vertically perforated by a third fastener through-hole 172 and a fourth fastener through-hole 173. The third fastener through-hole 172 overlaps with the third heat insulation through-hole 152, thus providing assembly space for the heating element. The heating element can sequentially pass through the heating through-hole on the heat-conducting element 13, the third heat insulation through-hole 152 on the second heat insulation element 15, and the third fastener through-hole 172 on the second fastener 17, allowing the heating element to be accommodated within the device body. The fourth fastener through-hole 173 overlaps with the fourth heat insulation through-hole 153, thus providing assembly space for the temperature sensing element. The temperature sensing element can sequentially pass through the temperature sensing through-hole on the heat-conducting element 13, the fourth heat insulation through-hole 153 on the second heat insulation element 15, and the fourth fastener through-hole 173 on the second fastener 17, allowing the temperature sensing element to be accommodated within the device body.

[0055] Specifically, the first fastener 16 has a third notch 162 on the side opposite to the first notch 142. This third notch 162 serves as an assembly channel for the cooling water pipe. The cooling water pipe can pass through the third notch 162 and the first notch 142 in sequence to connect with the cooling water inlet 1314 on the heat-conducting component 13, thereby transmitting cooling water to the cooling water channel 5. The second fastener 17 has a fourth notch 174 on the side opposite to the second notch 154. The fourth notch 174 also serves as an assembly channel for the cooling water pipe. The cooling water pipe can pass through the fourth notch 174 and the second notch 154 in sequence to connect with the cooling water outlet on the heat-conducting component 13, thereby discharging the cooling water from the cooling water channel 5.

[0056] The first fastener 16, the first heat insulation component 14, the first heat conductor 131, the second heat conductor 12, the second heat insulation component 14, and the second fastener 16 are connected and fastened together by screws or other mechanical parts.

[0057] Furthermore, the reaction unit is a reaction tube 11, which includes a main body 111. A cover 112 is provided on one side of the main body 111, and a tapered variable diameter tube 113 is provided on the other side. The tapered variable diameter tube 113 includes an integrally formed tapered tube 1131 and a thin tube 1132. The tapered tube 1131 is connected to the main body 111. The reaction tube 11 passes through the first fastener through hole 161, the first heat insulation through hole 141, and the reaction through hole in sequence and is inserted into the second heat insulation through hole 151.

[0058] In this embodiment, the reaction unit is a reaction tube 11, which includes a main body 111. The length of the main body 111 is the same as the length of the heat-conducting component 13. A cover 112 is provided on one side of the main body 111. A pipe is connected to the cover 112 and communicates with an external control valve 3. The length of the cover 112 is adapted to the length of the first heat insulation component 14 and is disposed in the through hole 141 of the first heat insulation component. The pipe connected to the cover 112 is disposed in the through hole 161 of the first fastener. A tapered reducing pipe 113 is provided on the side of the main body 111 away from the cover 112. The tapered reducing pipe 113 includes an integrally formed tapered pipe 1131 and a thin pipe 1132. The tapered pipe 1131 communicates with the main body 111, and the thin pipe 1132 is inserted into the through hole 151 of the second heat insulation component and communicates with the external control valve 3 for liquid inlet and outlet of the reaction tube 11. The pipe of the cover 112 of the reaction tube 11 is inserted into the first fastener through hole 161, the cover 112 is inserted into the first heat insulation through hole 141, the main body 111 is inserted into the reaction through hole, and the thin tube 1132 of the tapered reducing tube 113 is inserted into the second heat insulation through hole 151.

[0059] Specifically, to ensure heating speed and uniformity, the diameter of the main body 111 of the reaction tube 11 is between 10mm and 20mm. The length of the reaction tube 11 is determined by the volume requirement. For example, if the volume of the reaction tube 11 is 10mL and the diameter is 10mm, then its length is approximately 12.7cm. The upper opening of the main body 111 is fitted with a cover 112, which serves to seal and connect the tubes. To facilitate cleaning, maintenance, and reuse of the reaction tube 11, the upper opening of the main body 111 is a flat opening, and the lower opening is a tapered reducing tube 113.

[0060] Furthermore, the second heat insulation through hole 151 includes two first openings and second openings with different diameters. The first opening is connected to the second opening and is also connected to the reaction through hole. The second opening is also connected to the second fastener through hole 171. The thin tube 1132 is disposed in the first opening and is connected to the second opening. The diameter of the first opening is the same as the outer diameter of the thin tube 1132, and the diameter of the second opening is the same as the diameter of the second fastener through hole 161 and the inner diameter of the thin tube 1132.

[0061] In this embodiment, the multiple second heat insulation through holes 151 are of the same size and are variable diameter holes. From the second heat insulation element 15 toward the second fastener 17, there are two openings of different diameters: a first opening and a second opening. The first opening and the second opening are connected, and the first opening is also connected to the reaction through hole, while the second opening is also connected to the second fastener through hole 171. Specifically, a thin tube 1132 is inserted into the first opening and connected to the second opening. The outer diameter of the thin tube 1132 is the same as the diameter of the first opening, and the inner diameter of the thin tube 1132 is the same as the diameter of the second opening. The sample inlet tube can sequentially pass through the second fastener through hole 171, the second opening, and the thin tube 1132 to inject samples. The diameter of the second opening is also the same as the outer diameter of the sample inlet tube.

[0062] Furthermore, the colorimetric quantitative detection module 2 includes a colorimetric tube 21, a light source 22, a filter 23, and a photodetector 24. Multiple reaction units are connected to the colorimetric tube 21 through control valves 3, and the light source 22, the filter 23, and the photodetector 24 are respectively located on both sides of the colorimetric tube 21.

[0063] In this embodiment, the colorimetric quantitative detection module 2 includes a colorimetric tube 21, a light source 22, a filter 23, and a photodetector 24. Multiple reaction units are connected to the colorimetric tube 21 via control valves 3, allowing the reaction solutions from the reaction units to enter the colorimetric tube 21 for detection. The colorimetric tube 21 is also equipped with a light source 22, a filter 23, and a photodetector 24 on opposite sides. Specifically, the colorimetric quantitative detection module 2 constructs a monochromatic light source using the light source 22 and filter 23, the colorimetric tube 21 provides a sample environment with a fixed optical path, and the photodetector 24 converts the light signal into an electrical signal. The precise coordination of these components enables the colorimetric quantitative detection module 2 to accurately calculate the concentration of the analyte using the Lambert-Beer law. The light source 22 is a colorimetric lamp.

[0064] Furthermore, the multiple control valves 3 respectively include a first multi-way valve 31, a second multi-way valve 32 and a third multi-way valve 33. The first multi-way valve 31 is connected to the cap 112 of the multiple reaction tubes 11, the drive element 4 and the atmosphere. The second multi-way valve 32 is connected to the thin tube 1132 of the multiple reaction tubes 11, the colorimetric tube 21, the third multi-way valve 33 and the atmosphere. The third multi-way valve 33 is used to connect reagents, quantitative tubes, cleaning liquid tubes and waste liquid tubes. The quantitative tubes are also connected to the drive element 4.

[0065] In this embodiment, the multiple control valves 3 include a first multi-way valve 31, a second multi-way valve 32, and a third multi-way valve 33. The first multi-way valve 31 is provided with multiple orifices, which are respectively connected to the pipes on the caps 112 of the multiple reaction tubes 11. The first multi-way valve 31 is also connected to the drive unit 4. The drive unit 4 is connected to the first multi-way valve 31 and can transfer the reaction liquid in the reaction tube 11 to the colorimetric quantitative detection module 2. The first multi-way valve 31 is also connected to the atmosphere to balance the liquid pressure and enable the liquid to flow stably.

[0066] The second multi-way valve 32 is also provided with multiple orifices, which are respectively connected to the thin tubes 1132 at the bottom of multiple reaction tubes 11. The second multi-way valve 32 is also connected to the colorimetric quantitative detection module 2, forming a fluid channel between the second multi-way valve 32 and the colorimetric tube 21. The second multi-way valve 32 is also connected to one orifice of the third multi-way valve 31 to connect the second multi-way valve 32 and the third multi-way valve 33 to form a fluid channel. The second multi-way valve 32 is also connected to the atmosphere to balance the liquid pressure and enable the liquid to flow stably.

[0067] The third multi-way valve 33 also has multiple orifices, which are connected to multiple tubing fittings to connect to multiple reagents required for the reaction. The third multi-way valve 33 is also connected to a sample tube for sample injection and a quantitative tube. The other end of the quantitative tube is connected to a drive unit 4 for drawing liquid (sample, reagent, or cleaning solution) into the quantitative tube for quantitative measurement (example of quantitative method: quantitative tube with a liquid level sensor for quantitative measurement), and transferring the quantified liquid to the reaction tube 11 through the second multi-way valve 32. The third multi-way valve 33 is also connected to a cleaning solution tube for liquid path cleaning and a waste liquid tube for waste liquid discharge. Note that control valve 3 does not necessarily need to be a multi-way valve; a single multi-way valve and a three-way valve can also be used to achieve the above functions.

[0068] Furthermore, the multiple driving components 4 respectively include a first driving component 41, a second driving component 42 and a third driving component 43. The first driving component 41, the second driving component 42 and the third driving component 43 are all connected to the atmosphere. The first driving component 41 is connected to the quantitative tube, the second driving component 42 is connected to the first multi-way valve 31 and the third driving component 43 is connected to the colorimetric tube 21.

[0069] In this embodiment, the multiple driving components 4 include a first driving component 41, a second driving component 42, and a third driving component 43. Each driving component 4 has a fluid channel with one end connected to the atmosphere to balance pressure and ensure stable liquid flow. The first driving component 41 is connected to a quantitative tube and is used to draw liquid (sample, reagent, or cleaning solution) into the quantitative tube for quantification, and to transfer the quantified liquid to the reaction tube 11 or colorimetric tube 21. It also has a drainage function, such as draining the sample from the liquid path below the quantitative tube. The second driving component 42 is connected to a first multi-port valve 31 and is used to transfer the reaction solution from the reaction tube 11 to the colorimetric tube 21. The third driving component 43 is connected to the colorimetric tube 21 and is used to drain the liquid from the colorimetric tube 21. The third driving component 43 can also provide power for auxiliary drainage of the reaction tube 11 (emptying the liquid path below the reaction tube 11). Specifically, the first driving component 41, the second driving component 42, and the third driving component 43 are power pumps in this embodiment.

[0070] Specifically, the control module is connected to the reaction module 1, the colorimetric quantitative detection module 2, multiple control valves 3, and the drive unit 4, and has the following functions:

[0071]

[0072]

[0073] Furthermore, the specific implementation of the multi-channel parallel reaction device for a fully automated water quality analyzer provided by this utility model is as follows:

[0074] Test item: ammonia nitrogen;

[0075] Number of channels in the reaction tube: 5 channels;

[0076] Reaction chamber volume: 10 mL;

[0077] Reaction temperature: 40℃;

[0078] Reagents: Reagent 1: salicylic acid solution; Reagent 2: chloride-containing buffer solution;

[0079] Water sample volume: 6 mL, reagent 1: 1 mL, reagent 2: 1 mL;

[0080] Reaction process: Water sample, add reagent 1, add reagent 2, keep at 45℃ for 10 min;

[0081] Multi-way valves: Valve 1, six-way valve; Valve 2, eight-way valve; Valve 3, seven-way valve;

[0082] Power pumps: 3 peristaltic pumps;

[0083] Ammonia nitrogen analysis process for water samples:

[0084] The system starts up, preheats, and maintains a constant temperature of 45℃;

[0085] Sample injection: Inject water samples into reaction tube 11 one by one from channel 1 to channel 5, with each channel taking 10 seconds to inject water sample. If the water samples injected into adjacent channels are different, clean the shared liquid path with cleaning solution (such as pure water) between adjacent injections to avoid cross-contamination, with a cleaning time of 30 seconds. If the shared liquid path is not cleaned between adjacent channel injections (e.g., the same sample is injected into adjacent channels as parallel samples), the interval between each channel is 12 seconds, with a total time of 12×4+10+30=88 seconds. If the shared liquid path is cleaned between adjacent channel injections, the interval between each channel is 42 seconds, with a total time of 42×4+10+30=208 seconds.

[0086] Add reagent 1: Inject reagent 1 into the reaction tubes one by one from channel 1 to channel 5. The time for adding reagent to a single channel is 5 seconds, and the interval between each channel is 7 seconds. The total time is 7×4+5=33 seconds.

[0087] Add reagent 2: Inject reagent 2 into the reaction tubes one by one from channel 1 to channel 5. The time for adding reagent to a single channel is 5 seconds, and the interval between each channel is 7 seconds. The total time is 7×4+5=33 seconds. After reagent 2 is injected into channel 1, start timing for 10 minutes.

[0088] After 10 minutes, starting with channel 1, samples from each reaction tube enter the colorimetric cell sequentially for time-sharing detection according to the first-in, first-out principle. There is a cleaning procedure between detections in adjacent channels; the shared liquid path from the reaction tube to the colorimetric cell is cleaned before the next channel's sample is analyzed. Single-channel detection takes 10 seconds, with a 42-second interval between channels, for a total time of 42 × 4 + 10 = 178 seconds.

[0089] After all samples from the five channels have been tested, the reaction cups, cuvettes, and tubing are cleaned in preparation for the next batch of tasks.

[0090] This invention provides a multi-channel parallel reaction device for a fully automated water quality analyzer, comprising: a reaction module including multiple independent reaction units; a colorimetric quantitative detection module connected to the multiple independent reaction units via multiple control valves; multiple drive components connected to the multiple control valves to drive the reaction liquid in the multiple independent reaction units to flow into the colorimetric quantitative detection module; and a control module connected to the reaction module, the colorimetric quantitative detection module, and the multiple drive components and control valves. The multiple independent reaction units provided by this invention allow for simultaneous sample reaction, shortening the overall detection time, improving the efficiency of the water quality detection reaction stage, increasing the sample processing capacity per unit time, and optimizing the equipment operation process by controlling the drive components and multi-way valves to operate the multiple independent reaction units and the colorimetric quantitative detection module, thereby reducing sample detection waiting time and improving equipment utilization.

[0091] It should be noted that the various embodiments in this utility model are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0092] It should also be noted that, in the present invention, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0093] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined in the present invention may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-channel parallel reaction device for a fully automated water quality analyzer, characterized in that, include: A reaction module, comprising multiple independent reaction units; The colorimetric quantitative detection module is connected to multiple independent reaction units via multiple control valves; Multiple driving components are connected to multiple control valves respectively to drive the reaction liquid in multiple independent reaction units to flow into the colorimetric quantitative detection module; The control module is connected to the reaction module, the colorimetric quantitative detection module, and multiple drive components and control valves.

2. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 1, characterized in that, The reaction module includes a hollow outer frame, within which a device body is disposed. The device body includes a heat-conducting component, and multiple reaction through holes are provided through the heat-conducting component at intervals. Multiple independent reaction units are inserted into the multiple reaction through holes one-to-one. The heat-conducting component also has heating through holes and temperature detection through holes at intervals. A heating element is disposed in the heating through hole, and a temperature detection element is disposed in the temperature detection through hole.

3. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 2, characterized in that, The heat-conducting component also includes a cooling water channel, and has a cooling water inlet and a cooling water outlet. The cooling water inlet and outlet are respectively connected to the cooling water channel and are located at the upper and lower ends of the heat-conducting component. The heat-conducting component includes a first heat-conducting sub-component and a second heat-conducting sub-component connected to each other. A sealing element is provided between the first heat-conducting sub-component and the second heat-conducting sub-component, and both are respectively provided with multiple interconnected first reaction through holes and second reaction through holes, first heating through holes and second heating through holes, first temperature detection through holes and second temperature detection through holes. The first reaction through holes and the second reaction through holes are connected to form the reaction through holes. The first heating through hole and the second heating through hole are connected to form the heating through hole, and the first temperature detection through hole and the second temperature detection through hole are connected to form the temperature detection through hole; a first cooling water channel and a second cooling water channel are respectively opened inside the opposite side of the first heat-conducting sub-component and the second heat-conducting sub-component, and the first cooling water channel and the second cooling water channel are connected to form the cooling water channel; the cooling water inlet is located at the end of the first heat-conducting sub-component away from the second heat-conducting sub-component and is connected to the first cooling water channel, and the cooling water outlet is located at the end of the second heat-conducting sub-component away from the first heat-conducting sub-component and is connected to the second cooling water channel.

4. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 3, characterized in that, The device body further includes a first heat insulation component and a second heat insulation component respectively disposed at the upper and lower ends of the heat-conducting component. The first heat insulation component and the second heat insulation component are respectively provided with a plurality of first heat insulation component through holes and second heat insulation component through holes that correspond one-to-one with the plurality of reaction through holes. The plurality of reaction through holes are connected to the plurality of first heat insulation component through holes and second heat insulation component through holes in a one-to-one correspondence. The second heat insulation component is also provided with a third heat insulation component through hole that communicates with the heating through hole. The heating component is sequentially inserted through the heating through hole and the third heat insulation component through hole. The second heat insulation component is also provided with a fourth heat insulation component through hole that communicates with the temperature detection through hole. The temperature detection component is sequentially inserted through the temperature detection through hole and the fourth heat insulation component through hole. A first notch is provided on one side of the first heat insulation component, and a second notch is provided on the side of the second heat insulation component that is symmetrical to the first notch.

5. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 4, characterized in that, The device body further includes a first firmware and a second firmware. The first firmware and the second firmware are respectively disposed on the side of the first heat insulation component and the second heat insulation component away from the heat conduction component. The first firmware and the second firmware are respectively provided with a plurality of first firmware through holes and second firmware through holes corresponding one-to-one with the plurality of reaction through holes. The first firmware through holes and the second firmware through holes are interconnected with the through holes of the first heat insulation component, the through holes of the second heat insulation component, and the heat conduction through holes. The second firmware is also provided with a third firmware through hole and a fourth firmware through hole that are respectively connected to the through holes of the third heat insulation component and the through holes of the fourth heat insulation component. The heating component is sequentially inserted through the heating through hole, the through hole of the third heat insulation component, and the through hole of the third firmware. The temperature detection component is sequentially inserted through the temperature detection through hole, the through hole of the second heat insulation component, and the through hole of the fourth firmware. The first firmware is also provided with a third notch on the side opposite to the first notch, and the second firmware is also provided with a fourth notch on the side opposite to the second notch.

6. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 5, characterized in that, The reaction unit is a reaction tube, which includes a main body, a cover on one side of the main body, and a tapered variable diameter tube on the other side. The tapered variable diameter tube includes an integrally formed tapered tube and a thin tube. The tapered tube is connected to the main body. The reaction tube passes through the first fastener through hole, the first heat insulation through hole, and the reaction through hole in sequence and is inserted into the second heat insulation through hole.

7. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 6, characterized in that, The second heat insulation component through hole includes two openings, a first opening and a second opening, with different diameters. The first opening communicates with the second opening and is also connected to the reaction through hole. The second opening is also connected to the second fastener through hole. The thin tube is disposed in the first opening and communicates with the second opening. The diameter of the first opening is the same as the outer diameter of the thin tube, and the diameter of the second opening is the same as the diameter of the second fastener through hole and the inner diameter of the thin tube.

8. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 7, characterized in that, The colorimetric quantitative detection module includes a colorimetric tube, a light source, a filter, and a photodetector. Multiple reaction units are connected to the colorimetric tube through the control valve, and the light source, filter, and photodetector are respectively disposed on both sides of the colorimetric tube.

9. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 8, characterized in that, The plurality of control valves include a first multi-way valve, a second multi-way valve, and a third multi-way valve. The first multi-way valve is connected to the cap, the drive unit, and the atmosphere of the plurality of reaction tubes. The second multi-way valve is connected to the thin tube, the colorimetric tube, the third multi-way valve, and the atmosphere of the plurality of reaction tubes. The third multi-way valve is used to connect reagents, quantitative tubes, cleaning solution tubes, and waste liquid tubes. The quantitative tubes are also connected to the drive unit.

10. The multi-channel parallel reaction device for a fully automated water quality analyzer according to claim 9, characterized in that, The plurality of driving components include a first driving component, a second driving component, and a third driving component. The first driving component, the second driving component, and the third driving component are all in communication with the atmosphere. The first driving component is connected to the quantitative tube, the second driving component is connected to the first multi-way valve, and the third driving component is connected to the colorimetric tube.

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