Full-automatic water quality detection and analysis system

Abstract

The invention discloses a full-automatic water quality detection and analysis system which comprises a rack, a sample conveying trolley, a transfer mechanism, a sampling module, a sample preparation module, a reagent module, a sample introduction module, a detection module and a cleaning module. The transferring mechanism is used for feeding and discharging the sample bottles and is matched with the sampling module to sample the sample bottles; the sample preparation module is used for performing sample preparation on the cleaned digestion tube test tube, adding a required reagent into the digestion tube test tube, and transferring the reagent to the next process by a transferring mechanism; the reagent module is used for adding other reagents after digestion or when other reagents need to be added in other steps; the sample introduction module is used for adding a sample to be detected into the digestion tube test tube and sending the sample to be detected into the detection module for detection; and the cleaning module is used for cleaning and drying the used digestion test tube. According to the invention, automatic detection of water quality can be realized, the difference of each step in detection is small, adverse effects caused by manual operation are avoided, and the accuracy of a water quality detection result is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection, and in particular to a fully automatic water quality detection and analysis system. Background Art

[0002] Water quality is an important indicator in environmental testing. Environmental protection departments or water treatment companies need to test water quality regularly to determine whether the water quality meets the requirements. Currently, conventional water quality testing relies on specific testing departments. The testing process is that sampling personnel take samples on site and then transport the samples to the testing unit to complete the corresponding indicator testing in the laboratory. The main indicators of water quality testing include total phosphorus, total nitrogen, ammonia nitrogen and COD. The detection of these indicators is usually carried out by spectrophotometry. However, the testing process from sampling to test results is relatively cumbersome and lengthy. The transportation of samples back and forth greatly increases costs and prolongs the cycle. At the same time, due to the problem of water quality deterioration during transportation, the test results are inaccurate.

[0003] The most commonly used methods for water quality testing are spectrophotometry and titration. Spectrophotometry analysis is currently the most frequently performed analytical test by various testing agencies, and is currently mostly performed manually, with some using auxiliary tools for semi-automatic operation. Titration analysis is also a frequently performed analytical test by various testing agencies, and is currently mostly performed manually, with some using auxiliary tools for semi-automatic operation, and a small number using automatic titrators that use potentiometric measurement to determine the endpoint. Some instruments also use a large number of syringe pumps and switching valves for reagent addition, which is costly and too expensive to be accepted by the market. At the same time, since the manual titration and spectrophotometry process is cumbersome, the experimenter needs to perform sampling, dilution, sample preparation, digestion, reagent transfer, titration / spectrophotometry, cleaning utensils, calculation results, report writing and other tasks. The workload is large, the steps are cumbersome, and it takes a long time. The unstable quality of the operators will cause unexpected deviations in the test results, and the test accuracy cannot be better controlled. Moreover, the existing instruments on the market have a low degree of automation, and the functions of sampling, sample preparation, reagent addition, injection, testing and cleaning cannot be well integrated, making the detection efficiency of the entire test outflow low. Summary of the Invention

[0004] In response to the above-mentioned shortcomings of the prior art, the present invention provides a fully automatic water quality detection and analysis system that can realize sampling, sample preparation, reagent addition, sample injection, detection and cleaning functions, realize fully automatic detection and analysis of water quality, save time and labor costs, while ensuring the consistency of each link, greatly reducing the influence of human factors, improving the precise quantification of reagent samples, and improving the accuracy of test results.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is: Provided is a fully automatic water quality detection and analysis system, comprising a frame and a sample delivery trolley, wherein the frame is provided with a transfer mechanism, a sampling module, a sample preparation module, a reagent module, a sample injection module, a detection module and a cleaning module; the sample delivery trolley is used to cooperate with the transfer mechanism to realize the delivery of sample bottles; the transfer mechanism is used to grab and transfer sample bottles and digestion tubes; the sampling module is used to sample sample bottles and transport the samples to the detection module; the sample preparation module is used to prepare samples for cleaned digestion tubes and add required reagents to the digestion tubes; the reagent module is used to adjust the detection reagent; the sample injection module is used to add the sample to be detected into the digestion tube; the detection module is used to detect the detection sample in the digestion tube; and the cleaning module is used to clean and dry the digestion tubes after use.

[0006] Furthermore, the transfer mechanism includes a transfer robot arm and a translation linear module that drives the transfer robot arm to move, and the translation linear module is arranged above the cleaning module, the sampling module, the sample preparation module and the reagent module.

[0007] Furthermore, the sampling module includes a first bracket, a sampling rotary disk assembly that clamps and drives the sample bottle to rotate, a sample bottle capping mechanism that can be raised and lowered and is arranged on the first bracket, a sample bottle cap lifting module that drives the sample bottle capping mechanism to rise and fall vertically, a sampling unit, and a sampling unit transfer mechanism that drives the sampling unit to rise and fall and translate; the sample bottle capping mechanism is located above the sampling rotary disk assembly, the sampling rotary disk assembly is used to clamp and fix the bottom bottle body of the sample bottle, and drive the sample bottle to move to the bottom of the sample bottle capping mechanism and the bottom of the sampling unit, the sample bottle capping mechanism is used to clamp and rotate to remove the bottle cap of the sample bottle, and the sampling unit transfer mechanism is used to drive the sampling unit to move horizontally and vertically.

[0008] Furthermore, the sampling unit of the sampling module includes a sampling needle and a sampling pump. The sampling pump is connected to the sampling needle through a pipeline, and the sampling needle is installed at the working end of the sampling unit transfer mechanism.

[0009] Furthermore, the sampling module also includes a flow cleaning tank, a spray cleaning pump and a cleaning waste pump. The flow cleaning tank is equipped with a spray cleaning pump, and the bottom of the flow cleaning tank is connected to the cleaning waste pump through a pipeline; the spray cleaning pump, the flow cleaning tank and the cleaning waste pump constitute a spray cleaning unit; the sampling unit transfer mechanism is used to transfer the sampling needle to the flow cleaning tank, and the flow cleaning tank cooperates with the spray cleaning pump and the cleaning waste pump to spray clean the sampling needle.

[0010] Furthermore, the sample preparation module includes a sample preparation bracket, a digestion tube test tube cover removal mechanism installed on the sample preparation bracket that can be raised and lowered, a digestion tube test tube cover lifting module that drives the digestion tube test tube cover removal mechanism to rise and fall, a digestion tube test tube clamping and transferring mechanism that clamps and drives the digestion tube test tube to rotate in a circle, a sample preparation reagent pump, a sample preparation needle, a sample preparation needle linear module that drives the sample preparation needle to rise and fall, and a sample preparation reagent valve. The sample preparation reagent pump, the sample preparation reagent valve and the sample preparation needle are connected in sequence through pipelines; the digestion tube test tube cover removal mechanism is used to realize clamping and removing the cover and clamping the upper cover of the digestion tube test tube; the digestion tube test tube clamping and transferring mechanism is used to realize clamping and moving the digestion tube test tube; the digestion tube test tube is used to drive the digestion tube test tube cover removal mechanism and the sample preparation needle to perform lifting operations; the sample preparation reagent pump, the sample preparation reagent valve and the sample preparation needle are used in combination to realize the sample preparation operation of the digestion tube test tube.

[0011] Furthermore, the reagent module includes a second bracket, a reagent sampling mechanism installed on the second bracket, a reagent sampling linear module that drives the reagent sampling mechanism to rise and fall, a reagent needle, a reagent needle linear module that drives the reagent needle to rise and fall, a reagent pump and a reagent valve. The reagent needle, reagent valve and reagent pump are connected in sequence through pipelines. The reagent needle linear module is installed on the second bracket, the reagent needle is installed on the reagent needle linear module, and the reagent needle linear module is used to drive the reagent needle to move; the reagent sampling mechanism includes a reagent sampling claw and a reagent sampling rotating table that drives the reagent sampling claw to rotate; a reagent tube clamping claw and a reagent sampling rotating table that drives the reagent tube clamping claw to rotate are provided below the reagent sampling mechanism. The reagent tube clamping claw is fixed on the reagent sampling rotating table, and the reagent sampling rotating table drives the reagent tube clamping claw to rotate.

[0012] Furthermore, the sampling module includes a third bracket, a sampling cover removal mechanism arranged on the third bracket, a sampling cover removal linear module for driving the sampling cover removal mechanism to rise and fall, a sampling claw fixture, a sampling rotary table, a sampling needle, a sampling needle lifting linear module for driving the sampling needle to rise and fall, a sampling needle translation linear module for driving the sampling needle to move horizontally, a sampling needle cleaning tank, a flowing cleaning pure water pump and a flowing cleaning waste pump, and the flowing cleaning pure water pump and the flowing cleaning waste pump are both connected to the bottom of the sampling needle cleaning tank through a pipeline; the sampling cover removal mechanism includes an injection needle. The sampling cover clamp and the sampling cover rotary table that drives the sampling cover clamp to rotate, the sampling rotary table is arranged below the sampling cover mechanism, the sampling clamp fixture is installed on the sampling rotary table, the sampling cover linear module is used to drive the sampling cover mechanism to rise and fall, the sampling needle lifting linear module drives the sampling needle to rise and fall, the sampling needle translation linear module drives the sampling needle to translate, the sampling needle is installed on the sampling needle translation linear module through the sampling needle lifting linear module, and the sampling needle lifting linear module and the sampling needle translation linear module cooperate to realize the lifting and translation of the sampling needle.

[0013] Furthermore, the detection module includes a base, and a support frame, a cuvette, an injection pump, a waste pump, a DC power supply, a tungsten lamp, a deuterium lamp, a tungsten lamp power supply, a deuterium lamp power supply, a DC power supply and a spectrometer arranged on the support frame; the upper end of the cuvette is connected to the output end of the injection pump through a pipe, and the lower end of the cuvette is connected to the input end of the waste pump through a pipe; the spectrometer and the cuvette are connected through a Y-type optical fiber, the Y-type optical fiber includes an input end and two output ends, the input end of the Y-type optical fiber is connected to the spectrometer, one output end of one Y-type optical fiber is respectively connected to the 10mm light output part of the cuvette, and the other Y-type optical fiber is respectively connected to the 30mm light output part of the cuvette; the light output of the tungsten lamp is connected to the light input of the cuvette through an optical fiber, and the light output of the deuterium lamp is connected to the light input of the cuvette through an optical fiber.

[0014] Furthermore, the cleaning module includes a fourth bracket installed on the frame, a cleaning and cover-removing mechanism installed on the fourth bracket, a cleaning and cover-removing linear module that drives the cleaning and cover-removing mechanism to rise and fall, a cleaning and air-drying component that is arranged on the fourth bracket and can be lifted and translated, a cleaning and lifting linear module that drives the cleaning and air-drying component to rise and fall, a cleaning and translation linear module that drives the cleaning and air-drying component to translate, a horizontal rotating table, a vertical rotating table installed on the horizontal rotating table, a cleaning clamp installed on the vertical rotating table, a cover-washing trough, a cleaning and cover-washing translation linear module that drives the wash cover to move horizontally, a cleaning liquid valve and a cleaning liquid pump; the cleaning and cover-removing mechanism includes a cleaning and cover-removing clamp and a cleaning rotating table that drives the cleaning and cover-removing clamp to rotate; the cleaning and air-drying component includes a cleaning detergent tube and a cleaning hot air tube, and a waste liquid tank is provided below the cleaning detergent tube and the cleaning hot air tube.

[0015] The beneficial effects of the present invention are: The present invention mainly consists of a sample delivery trolley and a transfer mechanism arranged on a frame, a sampling module, a sample preparation module, a reagent module, an injection module, a detection module and a cleaning module. The sample delivery trolley is provided to realize the loading of sample bottles, the transfer mechanism grabs and moves the sample bottles on the sample delivery trolley, realizes the transfer of sample bottles and digestion tubes, and the sample bottles are sampled by the provided sampling module; the sample preparation module prepares samples for the cleaned digestion tubes and adds the required reagents into the digestion tubes, which are then transferred to the next process by the transfer mechanism; the reagent module adds other reagents when digestion is required or when other steps are required; the injection module adds the sample to be tested into the digestion tubes and sends them to the detection module for testing; the cleaning module cleans and dries the digestion tubes after use. Thus, the automated detection of water quality is realized, the differentiation of each step in the detection is small, the adverse effects caused by manual operation are avoided, and the accuracy of the water quality detection results is improved.

[0016] In actual use, the present invention realizes the automated detection of water samples, which can effectively improve the efficiency and accuracy of water quality detection, reduce manual participation in the overall detection process, achieve the purpose of automated detection, and make each detection step highly consistent, reducing the errors caused by manual detection.

[0017] The present invention can realize the functions of sampling, sample preparation, reagent addition, sample injection, detection and cleaning. The full-process automation design greatly reduces the operator's operation participation, stabilizes the experimental process and environment, eliminates unnecessary interference, and makes the test results more stable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the sampling module and the culture module of the present invention; Figure 3 Schematic diagram of the overall structure of the reagent module of the present invention; Figure 4 Schematic diagram of the overall structure of the sample injection module of the present invention; Figure 5 Schematic diagram of the overall structure of the detection module of the present invention; Figure 6 This is a schematic diagram of the overall structure of the cleaning module of the present invention; Figure 7 Schematic diagram of the overall structure of the cover removal mechanism of the present invention.

[0019] The main components in the figure are described as follows: 101. Frame; 102. Sample delivery trolley; 103. Transfer mechanism; 104. Transfer robot arm; 105. Translation linear module; 106, sampling module; 107, first bracket; 108, sampling rotary disk assembly; 109, sample bottle capping mechanism; 110, sampling unit; 111, sampling unit transfer mechanism; 112, spray cleaning pump; 113, flow cleaning tank; 114, sampling needle; 115, sampling pump; 116. Sample preparation module; 117. Digestion tube and test tube capping mechanism; 118. Digestion tube and test tube clamping and transferring mechanism; 119. Sample preparation reagent pump; 120. Sample preparation needle; 121. Sample preparation reagent valve; 125. Reagent module; 126. Reagent needle; 127. Reagent pump; 128. Reagent valve; 129. Second bracket; 130. Reagent sampling mechanism; 131. First linear module; 132. Reagent clamping claw; 1321. Reagent rotating disk; 133. Sampling module; 134. Third bracket; 135. Sampling and capping mechanism; 136. Flow cleaning pure water pump; 137. Flow cleaning waste pump; 138. Sampling clamp; 139. Sampling rotary disk; 140. Second linear module; 141. Sampling needle; 142. Detection module; 143. Base; 144. Support frame; 145. Cuvette; 146. Sample pump; 147. Waste pump; 148. DC power supply; 149. Tungsten lamp; 150. Deuterium lamp; 151. Tungsten lamp power supply; 152. Deuterium lamp power supply; 153. Spectrometer; 154. Cooling fan; 156. Cleaning module; 157. Fourth bracket; 158. Cleaning and capping mechanism; 159. Cleaning liquid valve; 160. Cleaning liquid pump; 161. Cleaning rotary claw fixture; 162. Cleaning rotary claw; 163. Cleaning detergent pipe; 164. Cleaning hot air pipe; 165. Cleaning and capping translation linear module; 166. Cleaning translation linear module; 167. Cleaning lifting linear module; 168. Waste liquid tank; 169, digestion tube test tube; 170, sample bottle; 1701, digestion tube test tube cap; 171. Fifth bracket; 172. Third linear module; 173. Support plate; 174. Fixed plate; 175. Movable block; 176. Optical axis; 1761. Rotating mechanical claw; 1762. Digestion tube fixture; 1763. Precision rotary table; 177. Test tube rack; 178. Digestion and heating unit; 179. Heat dissipation unit; 180. Drive module. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all inventions and creations utilizing the concepts of the present invention are protected.

[0021] like Figure 1As shown, the fully automatic water quality detection and analysis system includes a frame 101, a sample delivery trolley 102 and a transfer mechanism 103, a sampling module 106, a sample preparation module 116, a reagent module 125, an injection module 133, a detection module 142 and a cleaning module 156 arranged on the frame 101. The sample delivery trolley 102 is used to move along a preset route and to carry the sample bottle 170 for movement. The transfer mechanism 103 is used to realize the grabbing and movement of the sample bottle 170 on the sample delivery trolley 102, and cooperates with the transfer mechanism 103 to realize the delivery and removal of the sample bottle 170. The sampling module 106 is used to sample the sample bottle 170 and transport the sample to the detection module 142. The sample preparation module 116 is used to prepare the sample of the cleaned digestion tube test tube 169 and add the required reagents to the digestion tube test tube 169, which is then transferred to the next process by the transfer mechanism 103. The reagent module 125 is used to add additional reagents after digestion or in other steps. The sample injection module 133 is used to add the sample to be tested to the digestion tube 169 and send it to the detection module 142 for testing. The detection module is used to test the sample to be tested. The cleaning module 156 is used to clean and dry the digestion tube 169 after use.

[0022] Among them, the sample delivery cart 102 is controlled by the host computer and the scheduling system through wireless signals. The sample delivery cart 102 preferably adopts an AGV cart. The AGV cart runs on a pre-set route and is used to move back and forth between different analytical instruments and sample bottle 170 storage locations, so that the transfer mechanism 103 grabs the sample bottle 170 on the sample delivery cart 102 for sampling.

[0023] Among them, the transfer mechanism 103 includes a transfer robot arm 104 and a translation linear module 105. The translation linear module 105 is installed on the frame 101. The transfer robot arm 104 is installed on the translation linear module 105. The translation linear module 105 is used to drive the transfer robot arm 104 to move. The transfer robot arm 104 is used to realize the grabbing of the digestion tube test tube 169 and the sample bottle 170.

[0024] The provided translation linear module 105 is used to achieve linear movement, thereby increasing the range of motion of the transfer robot 104. The transfer robot 104 uses a six-degree-of-freedom manipulator, which can achieve the clamping, fixing and transfer of sample bottles and digestion tubes.

[0025] In actual use, the transfer mechanism 103, the sampling module 106, the sample preparation module 116, the reagent module 125, the injection module 133, the detection module 142 and the cleaning module 156 are all connected to a drive module 180, which is used to control and coordinate the actions of each component to achieve the purpose of automated detection. The drive module 180 can be a controller or a control management system.

[0026] like Figure 2 As shown, the sampling module 106 includes a first bracket 107, a sampling rotary disk assembly 108 that clamps and drives the sample bottle 170 to rotate, a sample bottle capping mechanism 109 that is arranged on the first bracket 107 and can be raised and lowered, a sample bottle cap lifting module that drives the sample bottle capping mechanism 109 to rise and fall vertically, a sampling unit 110, and a sampling unit transfer mechanism 111 that drives the sampling unit 110 to rise and fall and translate. The sample bottle capping mechanism 109 is located above the sampling rotary disk assembly 108. The sampling rotary disk assembly 108 is used to clamp and fix the bottom bottle body of the sample bottle 170, and to drive the sample bottle 170 to move below the sample bottle capping mechanism 109 and below the sampling unit 110. The sample bottle capping mechanism 109 is used to clamp and rotate to remove the bottle cap of the sample bottle 170. The sampling unit transfer mechanism 111 is used to drive the sampling unit 110 to move horizontally and vertically. The sample bottle cap lifting module is preferably a screw slide. The sampling unit transfer mechanism 111 includes a vertical screw slide and a horizontal screw slide. The sample bottle capping mechanism 109 includes a sample bottle capping clamp and a sample bottle capping rotary table that drives the sample bottle capping clamp to rotate. The sampling carousel assembly 108 includes a sample bottle body clamp that clamps the bottom of the sample bottle 170 and a sample bottle rotary table that drives the sample bottle body clamp to rotate.

[0027] The sampling unit 110 of the sampling module 106 includes a sampling needle 114 and a sampling pump 115 . The sampling pump 115 is connected to the sampling needle 114 via a pipeline. The sampling needle 114 is installed at the working end of the sampling unit transfer mechanism 111 .

[0028] Among them, the sampling module 106 also includes a flow cleaning tank 113, a spray cleaning pump 112 and a cleaning waste pump 147. The flow cleaning tank 113 is provided with a spray cleaning pump 112, and the bottom of the flow cleaning tank 113 is connected to the cleaning waste pump 147 through a pipeline; the spray cleaning pump 112, the flow cleaning tank 113 and the cleaning waste pump 147 constitute a spray cleaning unit. The sampling unit transfer mechanism 111 is used to transfer the sampling needle 114 to the flow cleaning tank 113. The flow cleaning tank 113 cooperates with the spray cleaning pump 112 and the cleaning waste pump 147 to spray clean the sampling needle 114. The spray cleaning unit is provided to achieve spray cleaning of the sampling needle 114 to ensure the cleanliness of the sampling needle 114. At the same time, after the sampling needle 114 is cleaned, a rinsing operation is required to further improve the cleanliness of the sampling needle 114 and avoid the impact of incomplete cleaning of the sampling needle 114 on the detection.

[0029] The working principle of the sampling module 106 is as follows: when in use, the transfer robot arm 104 is provided to clamp the sample sent by the sample delivery trolley 102, and send the sample bottle 170 to the sample bottle body clamping claw of the sampling rotary disk assembly 108. The sample bottle body clamping claw clamps the sample bottle 170 to fix the sample bottle 170. Then, the sample bottle rotary table rotates to send the sample bottle 170 to the bottom of the sample bottle capping mechanism 109. The sample bottle capping mechanism 109 performs the capping operation on the sample bottle 170. The sample bottle cap lifting module drives the sample bottle capping mechanism 109 to remove the cap. When it is lifted to the lowest position, the sample bottle cap removal mechanism 109 clamps and rotates the sample bottle 170 to open the cap. When the opening operation of the sample bottle 170 is completed, the sample bottle cap lifting module drives the sample bottle cap removal mechanism 109 to lift to the highest position. At this time, the sample bottle rotary table drives the sample bottle 170 to rotate to the bottom of the sampling unit 110. At this time, the sampling unit transfer mechanism 111 drives the sampling unit 110 to move above the sample bottle, and drives the sampling needle 114 in the sampling unit 110 to move into the sample bottle, and the sampling pump 115 performs suction to achieve the purpose of sampling. After the sampling unit 110 completes the sampling operation of the sample bottle 170, the sampling needle 114 rises and pushes out the sample bottle 170, and the sample bottle rotary table drives the sample bottle 170 to rotate to the bottom of the sample bottle capping mechanism 109, and the sample bottle cap lifting module drives the sample bottle capping mechanism 109 to rise and fall to the lowest position, and the sample bottle capping mechanism 109 performs the capping operation on the sample bottle 170. After completing the capping operation of the sample bottle 170, the sample bottle cap lifting module drives the sample bottle capping mechanism 109 to rise and fall to the highest position, and the sample bottle rotary table drives the sample bottle 170 to rotate to the initial feeding position, and the transfer robot arm 104 transfers the sampled sample bottle 170 to the sample delivery trolley 102, completing the sampling operation of the sample bottle 170.

[0030] The rinsing working principle of the sampling module 106 is as follows: when rinsing the sampling needle 114, the sample preparation reagent valve 121 is switched to the extraction position, and the sample preparation reagent pump 119 starts to extract the sample. Then the sampling unit transfer mechanism 111 is controlled to drive the sampling needle 114 to move into the flow cleaning tank 113. Specifically, the sampling needle 114 is first driven to move horizontally to the cleaning tank 113, and then the sampling needle 114 is lifted and sent into the cleaning tank 113. After the sampling needle 114 moves to the cleaning tank 113, the waste discharge operation is first performed to eject the sample just extracted, completing the rinsing step. At this time, the spray cleaning pump 112 and the cleaning waste pump 147 of the flow cleaning tank 113 are turned on at the same time to maintain the fluidity of the pure water. After multiple rinses, the sampling needle 114 finally moves and injects the sample into the digestion tube test tube 169. Finally, the sample bottle rotating table of the sampling carousel assembly 108 drives the sample bottle 170 to rotate under the sample bottle capping mechanism 109, and the sample bottle cap is screwed on. After the sample bottle cap is completed, the sample bottle rotating table drives the sample bottle 170 to rotate to the outermost side, and the transfer robot 104 grabs the sample bottle and returns it to the trolley for subsequent use.

[0031] like Figure 2 As shown, the sample preparation module 116 includes a sample preparation bracket, a digestion tube test tube cover removal mechanism 117 installed on the sample preparation bracket and capable of being raised and lowered, a digestion tube test tube cover lifting module that drives the digestion tube test tube cover removal mechanism 117 to be raised and lowered, a digestion tube test tube clamping and transferring mechanism 118 that clamps and drives the digestion tube test tube 169 to rotate in a circle, a sample preparation reagent pump 119, a sample preparation needle 120, a sample preparation needle linear module that drives the sample preparation needle 120 to be raised and lowered, and a sample preparation reagent valve 121. The sample preparation reagent pump 119, the sample preparation reagent valve 121 and the sample preparation needle 120 are connected in sequence through pipelines.

[0032] The digestion tube test tube cover removal mechanism 117 is used to achieve clamping and removing the cover of the digestion tube test tube 169 and clamping the upper cover. The digestion tube test tube clamping and transferring mechanism 118 is used to achieve clamping and moving of the digestion tube test tube 169. The digestion tube test tube 169 is used to drive the digestion tube test tube cover removal mechanism 117 and the sample preparation needle 120 to perform lifting operations. The sample preparation reagent pump 119, the sample preparation reagent valve 121 and the sample preparation needle 120 are used together to achieve the sample preparation operation of the digestion tube test tube 169. The digestion tube test tube cover lifting module is a vertical screw slide. The digestion tube test tube cover removal mechanism 117 includes a digestion tube test tube cover removal clamp and a digestion tube test tube cover removal rotating table that drives the digestion tube test tube cover removal clamp to rotate.

[0033] The digestion tube test tube clamping and transferring mechanism 118 includes a digestion tube test tube bottle body clamp that clamps the bottom of the digestion tube test tube 169 and a digestion tube test tube rotating table that drives the digestion tube test tube bottle body clamp to rotate in a circle. The digestion tube test tube bottle body clamp is installed on the digestion tube test tube rotating table. The servo rotating clamp is used to drive the clamps to move closer to or away from each other to achieve the clamping and fixing of the digestion tube test tube 169. In actual use, an electric rotating clamp can also be used. The driving of the clamp is achieved by the servo rotating clamp or the electric rotating clamp. In this application, the clamp is a clamping part provided on the servo rotating clamp or the electric rotating clamp.

[0034] The working principle of the sample preparation module 116 is as follows: in actual use, the transfer robot arm 104 grabs the cleaned digestion tube test tube 169 on the test tube rack 177 and places it on the digestion tube test tube clamping and transferring mechanism 118. The digestion tube test tube clamping and transferring mechanism 118 clamps and fixes the digestion tube test tube 169 through the digestion tube test tube bottle body clamping claws. At this time, the digestion tube test tube rotating table is located at the outermost side; the digestion tube test tube rotating table drives the digestion tube test tube 169 to rotate to the bottom of the digestion tube test tube cover removal mechanism 117, and the digestion tube test tube cover lifting module drives the digestion tube test tube cover removal mechanism 117 to descend to the lowest point, and the digestion tube test tube cover removal mechanism 117 cooperates with the digestion tube test tube bottle body clamping claws to remove the lid of the digestion tube test tube 169; after the lid is removed, the digestion tube test tube cover lifting module drives the digestion tube test tube cover removal mechanism 117 to rise to the highest point, and at the same time, the digestion tube test tube rotating table rotates to the innermost side. Prepare the sample preparation operation of the digestion tube test tube 169; the sample preparation needle linear module drives the sample preparation needle 120 to descend to the lowest point, so that the sample preparation needle 120 enters the digestion tube test tube 169, and under the action of the sample preparation reagent pump 119, the sample preparation needle 120 and the sample preparation reagent valve 121, the sample preparation of the digestion tube test tube 169 is carried out through the sample preparation needle 120, and the sample preparation needle 120 descends to inject the required reagent into the digestion tube test tube 169; when the sample preparation needle 120 is in the test tube 169, the sample preparation needle 120 is in the test tube 169. After the injection of the reagent is completed, the sample needle linear module drives the sample needle 120 to rise to the highest point. At the same time, the digestion tube test tube rotating platform drives the digestion tube test tube 169 to rotate to the bottom of the digestion tube test tube cover removal mechanism 117. When the digestion tube test tube 169 moves to the bottom of the digestion tube test tube cover removal mechanism 117, the digestion tube test tube cover lifting module drives the digestion tube test tube cover removal mechanism 117 to descend to the lowest point together, and the digestion tube test tube 169 is covered. After the digestion tube test tube 169 is covered, the digestion tube test tube cover lifting module drives the digestion tube test tube cover removal mechanism 117 to descend to the highest point together, and the digestion tube test tube rotating platform drives the digestion tube test tube 169 to rotate to the outermost side. The transfer robot 104 grabs the digestion tube test tube 169 with the completed sample and sends it to the next process, such as digestion heating or adding other reagents, or to the test tube rack 177 to wait for reaction.

[0035] like Figure 3As shown, the reagent module 125 includes a second bracket 129, a reagent sampling mechanism 130 mounted on the second bracket 129, a reagent sampling linear module that drives the reagent sampling mechanism 130 to rise and fall, a reagent needle 126, a reagent needle linear module that drives the reagent needle 126 to rise and fall, a reagent pump 127, and a reagent valve 128. The reagent needle 126, the reagent valve 128, and the reagent pump 127 are connected in sequence by pipes. The reagent needle linear module is mounted on the second bracket 129, and the reagent needle 126 is mounted on the reagent needle linear module. The reagent needle linear module is used to drive the reagent needle 126 to move. The reagent sampling mechanism 130 includes a reagent sampling clamp and a reagent sampling rotary table that drives the reagent sampling clamp to rotate. A reagent clamping claw 132 and a reagent sampling rotating platform 1321 for driving the reagent clamping claw 132 to rotate are provided below the reagent sampling mechanism 130 . The reagent clamping claw 132 is fixed on the reagent sampling rotating platform 1321 , and the reagent sampling rotating platform 1321 drives the reagent clamping claw 132 to rotate.

[0036] The working principle of the reagent module 125: After the sample preparation is completed, additional reagents need to be added after digestion or other steps. At this time, the transfer robot 104 grabs the digestion tube to be used to the reagent module 125, and the reagent clamping claw 132 clamps and fixes the digestion tube. The reagent sampling rotary table 1321 drives the digestion tube to rotate to the bottom of the reagent sampling mechanism 130, and the reagent sampling linear module drives the reagent sampling mechanism 130 to descend to the lowest point. The reagent sampling claw of the reagent sampling mechanism 130 cooperates with the reagent sampling rotary table to clamp and rotate the digestion tube to remove the cover. After the cover of the digestion tube is removed, the reagent sampling linear module drives the reagent sampling mechanism 130 to rise to the highest point, and the reagent sampling rotary table 1321 drives the digestion tube to rotate To the bottom of the reagent needle 126, the reagent needle linear module drives the reagent needle 126 down into the digestion tube, the reagent valve 128, the reagent pump 127 and the reagent needle 126 cooperate to add the corresponding reagent, after the reagent is added, the reagent sampling rotary table 1321 drives the digestion tube to rotate to the bottom of the reagent sampling mechanism 130, the reagent sampling linear module drives the reagent sampling mechanism 130 to descend to the lowest point, the reagent sampling claws of the reagent sampling mechanism 130 and the reagent sampling rotary table cooperate to clamp and rotate the digestion tube to cover it, after the digestion tube is covered, the reagent sampling linear module drives the reagent sampling mechanism 130 to rise to the highest point, and the reagent sampling rotary table 1321 drives the digestion tube to rotate back to the initial actual sampling position. In actual use, different reagents can be added as needed, and different reagents can be set according to different detection items.

[0037] like Figure 4As shown, the sampling module 133 includes a third bracket 134, a sampling cover removal mechanism 135 arranged on the third bracket 134, a sampling cover removal linear module that drives the sampling cover removal mechanism 135 to rise and fall, a sampling claw fixture 138, an sampling rotary table 139, an injection needle 141, an injection needle lifting linear module 140 that drives the injection needle 141 to rise and fall, an injection needle translation linear module that drives the injection needle 141 to move horizontally, an injection needle cleaning tank, a flowing cleaning pure water pump 136 and a flowing cleaning waste pump 137. The flowing cleaning pure water pump 136 and the flowing cleaning waste pump 137 are both connected to the bottom of the injection needle cleaning tank through pipes. The sampling cover removal mechanism 135 includes a sampling cover removal clamp and a sampling cover removal rotary table that drives the sampling cover removal clamp to rotate. The sampling rotary table 139 is arranged below the sampling cover removal mechanism 135. The sampling clamp 138 is installed on the sampling rotary table 139. The sampling cover removal linear module is used to drive the sampling cover removal mechanism 135 to rise and fall. The sampling needle lifting linear module 140 drives the sampling needle 141 to rise and fall. The sampling needle translation linear module drives the sampling needle 141 to translate. The sampling needle 141 is installed on the sampling needle translation linear module through the sampling needle lifting linear module 140. The sampling needle lifting linear module 140 and the sampling needle translation linear module cooperate to realize the lifting and translation of the sampling needle 141.

[0038] Specifically, the injection module 133 operates as follows: Once all pre-processing is complete, the injection process can begin. The injection needle 141, driven by the injection needle lift linear module 140 and the injection needle translation linear module, first moves to the pure water level in the injection needle cleaning tank. The injection pump 146 in the detection module 142 pumps pure water to repeatedly clean the pipeline. After cleaning, the injection needle 141 returns to the upper end of the injection position, awaiting digestion tube 169.

[0039] The transfer robot 104 grabs the digestion tube test tube 169 to the sampling module 133, and the gripper fixture 138 clamps and fixes the digestion tube test tube 169, and the sampling rotary table 139 drives the digestion tube test tube 169 to rotate to the bottom of the sampling capping mechanism 135 for capping operation. After the sampling capping mechanism 135 has capped the digestion tube test tube 169, the sampling rotary table 139 drives the digestion tube test tube 169 to reach the sampling position, and the injection needle lifting linear module 140 drives the injection needle 141 to descend into the digestion tube test tube 169 for sampling operation. Finally, the digestion tube test tube 169 returns to the bottom of the sampling capping mechanism 135, and the digestion tube test tube 169 is capped. After the digestion tube test tube 169 is capped, the sampling rotary table 139 drives the digestion tube test tube 169 to withdraw to the outermost side, and the transfer robot 104 grabs and moves the digestion tube test tube 169 to another position.

[0040] like Figure 5As shown, the detection module 142 includes a base 143, and a support frame 144, a cuvette 145, an injection pump 146, a waste pump 147, a DC power supply 148, a tungsten lamp 149, a deuterium lamp 150, a tungsten lamp power supply 151, a deuterium lamp power supply 152, a DC power supply 148 and a spectrometer 153 arranged on the support frame 144; the upper end of the cuvette 145 is connected to the output end of the injection pump 146 through a pipeline, the lower end of the cuvette 145 is connected to the input end of the waste pump 147 through a pipeline, and the injection needle 141 of the injection module 133 is connected to the input end of the injection pump 146 through a pipeline. The spectrometer 153 is connected to the cuvette 145 via a Y-shaped optical fiber. The Y-shaped optical fiber includes one input end and two output ends. The input end of the Y-shaped optical fiber is connected to the spectrometer 153, and one output end of the Y-shaped optical fiber is respectively connected to the 10mm light outlet of the cuvette 145, and the other Y-shaped optical fiber is respectively connected to the 30mm light outlet of the cuvette 145. The light outlet of the tungsten lamp 149 is connected to the light entrance of the cuvette 145 via an optical fiber, and the light outlet of the deuterium lamp 150 is connected to the light entrance of the cuvette 145 via an optical fiber. In this embodiment, the length, width, and height of the cuvette 145 are preferably 10mm, 30mm, and 40mm, respectively. The cuvette 145 is transparent to light on all four sides and has a waste discharge funnel at the bottom. The cuvette 145 is made of quartz. The wavelength range of the spectrometer 153 is 190-840nm. The support frame 144 is further provided with a cooling fan 154 for dissipating heat from the tungsten lamp 149 and the deuterium lamp 150. A DC power supply 148 is used to power the tungsten lamp 149 and the deuterium lamp 150.

[0041] The working principle of the detection module 142: Before the sampling operation, the sampling pump 146 of the detection module 142 is turned on to draw liquid, and the waste pump 147 of the detection module 142 is turned on to discharge waste, and a rinsing operation is performed for a period of time. After the rinsing operation is completed, the waste pump 142 of the detection module 142 is turned off. After the sample extraction volume is appropriate, the sampling pump 146 is turned off. After waiting for the detection to be completed, the sampling needle 141 moves to the sampling needle cleaning tank, and the flowing cleaning pure water pump 136 draws pure water to clean the entire pipeline. After the entire pipeline is cleaned, the prepared sample is sent to the cuvette 145 through the sampling module 133. The spectrometer 153 reads the absorbance of the sample, compares it with the absorbance curve of the standard substance, and finally calculates the value of the sample.

[0042] like Figure 6As shown, the cleaning module 156 includes a fourth bracket 157 mounted on the frame 101, a cleaning and capping mechanism 158 mounted on the fourth bracket 157, a cleaning and capping linear module that drives the cleaning and capping mechanism 158 to move up and down, a cleaning and air-drying component that is arranged on the fourth bracket 157 and can move up and down and horizontally, a cleaning and lifting linear module 167 that drives the cleaning and air-drying component to move up and down, a cleaning and translation linear module 166 that drives the cleaning and air-drying component to move horizontally, a horizontal rotating table, a vertical rotating table 162 mounted on the horizontal rotating table, a cleaning clamp 161 mounted on the vertical rotating table 162, a cap washing tank, a cleaning and capping translation linear module 165 that drives the washing cap to move horizontally, a cleaning liquid valve 159 and a cleaning liquid pump 160. The cleaning and capping mechanism 158 includes a cleaning and capping clamp and a cleaning rotating table that drives the cleaning and capping clamp to rotate. The cleaning and drying assembly includes a cleaning agent pipe 163 and a cleaning hot air pipe 164, below which a waste liquid tank 168 is provided. The cleaning liquid valve 159 and the cleaning liquid pump 160 are connected to the cleaning agent pipe 163 via a pipe, and the cleaning hot air pipe 164 is connected to a pipe providing hot air. The horizontal rotating table is used to drive the vertical rotating table 162 to rotate. The cleaning clamp 161 is used to clamp the test tube to be cleaned. The cleaning agent pipe 163 and the cleaning hot air pipe 164 are fixedly mounted on a cleaning translation linear module 166 via a cleaning bracket. The cleaning translation linear module 166 is used to drive the cleaning bracket to move. The cleaning translation linear module 166 is mounted on a cleaning lifting linear module 166. The cleaning lifting linear module 167 is used to drive the cleaning translation linear module 166 to move vertically. In actual use, the cleaning translation linear module 166 is driven to tilt.

[0043] The working principle of the cleaning module 156: In actual use, the transfer robot 104 grabs the used digestion tube test tube 169 and brings it to the cleaning module 156 for cleaning. The cleaning clamp 161 clamps the digestion tube test tube 169. After the cleaning clamp 161 cooperates with the cleaning cover removal mechanism 158 to complete the cover removal, the horizontal rotating table drives the cleaning clamp 161 and the digestion tube test tube 169 to rotate above the waste liquid tank 168. The vertical rotating table 162 rotates 180 degrees, allowing the digestion tube test tube 169 to face downward and pour the remaining waste liquid into the waste liquid tank 168. Then the rotation direction is aligned with the cleaning detergent tube 163, and the cleaning translation linear module 166 moves to the left to allow the detergent tube 163 to enter the digestion tube test tube 169. The cleaning liquid pump 160 is turned on, and the cleaning liquid valve 159 is cooperated to spray detergent, tap water, and pure water in turn for cleaning. After completion, the cleaning hot air pipe 164 is moved to the digestion tube test tube 169 for drying. After the digestion tube test tube 169 is dried, the digestion tube test tube 169 is returned to the cleaning and capping mechanism 158 through the horizontal rotating table and the vertical rotating table 162 to perform the capping operation on the digestion tube test tube 169. After the capping operation is completed, the horizontal rotating table cooperates with the vertical rotating table 162 to send the digestion tube test tube 169 out, and cooperates with the transfer robot 104 to transfer the digestion tube test tube 169 to the test tube rack 177 for standby use. The cleaning and capping translation linear module 165 is used to drive the cap washing trough to move and receive the cap removed by the cleaning and capping mechanism 158, so as to collect the cap. The present invention realizes the rapid cleaning of the digestion tube test tube 169. In actual use, a test tube rack 177 is provided on the rack 101 for placing the digestion tube test tube 169, and a digestion heating unit 178 is also provided on the rack 101. A heat dissipation unit 179 is further provided below the test tube rack 177 for dissipating heat from the test tubes after drying.

[0044] The sample bottle capping rotary table, sample bottle rotary table, digestion tube test tube rotary table, reagent sampling rotary table, injection rotary table, injection capping rotary table, horizontal rotary table, and vertical rotary table 162 are all preferably precision rotating disks. The translation linear module 105, sample preparation needle linear module, reagent sampling linear module, reagent needle linear module, injection capping linear module, injection needle translation linear module, injection needle lifting linear module 140, cleaning and capping linear module, cleaning and lifting linear module 167, cleaning translation linear module 166, and cleaning and capping translation linear module 165 can all use lead screw slides.

[0045] like Figure 7As shown, in actual use, the cover-removing mechanism 109, the tube-unwinding and cover-removing mechanism 109, the cleaning and cover-removing mechanism 158, the sampling and cover-removing mechanism 135, and the reagent sampling mechanism 130 can all adopt the same structure, specifically, including a fifth bracket 171, a third linear module 172 installed on the fifth bracket 171, a support plate 173 connected to the third linear module 172, a fixed plate 174 installed on the support plate 173, a movable block 175 slidably installed on the fixed plate 174, an optical axis 176 is provided between the support plate 173 and the fixed plate 174, and the movable block 175 is slidably installed on the optical axis 17 6, a spring is mounted on the optical axis 176, one end of the spring is connected to the fixed plate 174, and the other end is connected to the movable block 175, and a rotating mechanical claw 1761 is installed on the movable block 175. The rotating mechanical claw 1761 is used to clamp and fix the digestion tube test tube cap 1701 and drive the digestion tube test tube cap 1701 to rotate. The fifth bracket 171 is also provided with a precision rotating table 1763 and a digestion tube clamp 1762 arranged on the precision rotating table 1763. The precision rotating table 1763 is used to drive the digestion tube clamp 1762 to rotate, and the digestion tube clamp 1762 is used to clamp and fix the digestion tube test tube 169.

[0046] The specific working principles of the capping mechanism 109, the tube unloading and capping mechanism 109, the cleaning and capping mechanism 158, the sampling and capping mechanism 135, and the reagent sampling mechanism 130 are as follows: When removing the cap, the digestion tube clamp 1762 on the precision rotating table 1763 clamps the digestion tube 169, and the precision rotating table 1763 rotates so that the digestion tube 169 is located below the rotating mechanical claw 1761. Under the action of the third linear module 172, the rotating mechanical claw 1761 moves and clamps the digestion tube cap 1701. The rotating mechanical claw 1761 descends until the cap clamp completely covers the digestion tube cap 1701. At this time, there is still space on the upper part of the movable block 175. Then the rotating mechanical claw 1761 rotates counterclockwise, the tube cap is unscrewed, and the movable block 175 is squeezed upward. After the tube cap is unscrewed, the third linear module 172 moves upward to completely remove the tube cap from the digestion tube. The movable block 175 moves downward under the action of the spring. Finally, the precision rotating table 1763 moves the digestion tube 169 without the cap to another required position.

[0047] When the cover is applied, the precision rotating table 1763 moves to the cover removal position. At this time, the digestion tube test tube cap 1701 is clamped and fixed at the digestion tube clamp 1762. The third linear module 172 drives the rotating mechanical claw 1761 to descend, and the movable block 175 is pressed and moved upward. Then the rotating mechanical claw 1761 rotates clockwise, and the digestion tube test tube cap 1701 is screwed into the digestion tube. After it is fully tightened, the clamping clamp of the rotating mechanical claw 1761 is released, and the third linear module 172 rises. The precision rotating table 1763 rotates to the outer position. After the cover application operation of the digestion tube test tube 169 is completed, the spring provided in the present application can extend or shorten during the process of applying and removing the cover.

[0048] The fully automated design of the present invention greatly reduces the involvement of human operators, stabilizes the experimental process and environment, eliminates unnecessary interference, and makes the test results more stable and accurate.

[0049] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fully automatic water quality detection and analysis system, characterized in that: The device comprises a frame (101) and a sample delivery trolley (102), wherein the frame (101) is provided with a transfer mechanism (103), a sampling module (106), a sample preparation module (116), a reagent module (125), a sample injection module (133), a detection module (142) and a cleaning module (156); The sample delivery trolley (102) is used to cooperate with the transfer mechanism (103) to realize the delivery and removal of the sample bottle (170); The transfer mechanism (103) is used for grabbing and transferring sample bottles (170) and digestion tubes (169); The sampling module (106) is used to sample the sample bottle (170) and transport the sample to the detection module (142); The sample preparation module (116) is used to prepare samples for the cleaned digestion tube test tube (169) and add the required reagents to the digestion tube test tube (169); The reagent module (125) is used to adjust the detection reagent; The sample injection module (133) is used to add the sample to be detected into the digestion tube (169); The detection module (142) is used to detect the detection sample in the digestion tube test tube (169); The cleaning module (156) is used to clean and dry the digestion tube test tube (169) after use.

2. The fully automatic water quality detection and analysis system according to claim 1, characterized in that: The transfer mechanism (103) includes a transfer robot arm (104) and a translation linear module (105) that drives the transfer robot arm (104) to move. The translation linear module (105) is arranged above the cleaning module (156), the sampling module (106), the sample preparation module (116) and the reagent module (125).

3. The fully automatic water quality detection and analysis system according to claim 1 is characterized in that: The sampling module (106) includes a first bracket (107), a sampling rotating disk assembly (108) for clamping and driving the sample bottle (170) to rotate, a sample bottle capping mechanism (109) disposed on the first bracket (107) and capable of being raised and lowered, a sample bottle cap lifting module for driving the sample bottle capping mechanism (109) to vertically lift and lower, a sampling unit (110), and a sampling unit transfer mechanism (111) for driving the sampling unit (110) to lift and lower and translate. The sample bottle capping mechanism (109) is located above the sampling rotary disk assembly (108). The sampling rotary disk assembly (108) is used to clamp and fix the bottom bottle body of the sample bottle (170) and drive the sample bottle (170) to move below the sample bottle capping mechanism (109) and below the sampling unit (110). The sample bottle capping mechanism (109) is used to clamp and rotate to remove the bottle cap of the sample bottle (170). The sampling unit transfer mechanism (111) is used to drive the sampling unit (110) to move horizontally and vertically.

4. The fully automatic water quality detection and analysis system according to claim 3 is characterized in that: The sampling unit (110) of the sampling module (106) comprises a sampling needle (114) and a sampling pump (115), wherein the sampling pump (115) is connected to the sampling needle (114) via a pipeline, and the sampling needle (114) is installed at the working end of the sampling unit transfer mechanism (111).

5. The fully automatic water quality detection and analysis system according to claim 3, characterized in that: The sampling module (106) further includes a flow cleaning tank (113), a spray cleaning pump (112) and a cleaning waste pump (147), wherein the flow cleaning tank (113) is provided with a spray cleaning pump (112), and the bottom of the flow cleaning tank (113) is connected to the cleaning waste pump (147) through a pipeline; the spray cleaning pump (112), the flow cleaning tank (113) and the cleaning waste pump (147) constitute a spray cleaning unit; the sampling unit transfer mechanism (111) is used to transfer the sampling needle (114) to the flow cleaning tank (113), and the flow cleaning tank (113) cooperates with the spray cleaning pump (112) and the cleaning waste pump (147) to spray clean the sampling needle (114).

6. The fully automatic water quality detection and analysis system according to claim 1, characterized in that: The sample preparation module (116) includes a sample preparation bracket, a digestion tube test tube cover removal mechanism (117) installed on the sample preparation bracket and capable of being raised and lowered, a digestion tube test tube cover lifting module that drives the digestion tube test tube cover removal mechanism (117) to be raised and lowered, a digestion tube test tube clamping and transferring mechanism (118) that clamps and drives the digestion tube test tube (169) to rotate in a circle, a sample preparation reagent pump (119), a sample preparation needle (120), a sample preparation needle linear module that drives the sample preparation needle (120) to be raised and lowered, and a sample preparation reagent valve (121), wherein the sample preparation reagent pump (119), the sample preparation reagent valve (121) and the sample preparation needle (120) are sequentially connected through pipelines; The digestion tube test tube cover removal mechanism (117) is used to realize clamping and removing the cover and clamping the upper cover of the digestion tube test tube (169); the digestion tube test tube clamping and moving mechanism (118) is used to realize clamping and moving the digestion tube test tube (169); the digestion tube test tube (169) is used to drive the digestion tube test tube cover removal mechanism (117) and the sample preparation needle (120) to perform lifting operations; the sample preparation reagent pump (119), the sample preparation reagent valve (121) and the sample preparation needle (120) are used in combination to realize the sample preparation operation of the digestion tube test tube (169).

7. The fully automatic water quality detection and analysis system according to claim 1, characterized in that: The reagent module (125) includes a second bracket (129), a reagent sampling mechanism (130) mounted on the second bracket (129), a reagent sampling linear module for driving the reagent sampling mechanism (130) to rise and fall, a reagent needle (126), a reagent needle linear module (140) for driving the reagent needle (126) to rise and fall, a reagent pump (127) and a reagent valve (128), wherein the reagent needle (126), the reagent valve (128) and the reagent pump (127) are connected in sequence through pipelines, the reagent needle linear module (140) is mounted on the second bracket (129), and the reagent needle (126) is mounted on the reagent valve (128). The reagent sampling mechanism (130) is mounted on a reagent needle linear module (140), and the reagent needle linear module (140) is used to drive the reagent needle (126) to move; the reagent sampling mechanism (130) includes a reagent sampling claw and a reagent sampling rotating table that drives the reagent sampling claw to rotate; a reagent tube clamping claw (132) and a reagent sampling rotating table (1321) that drives the reagent tube clamping claw (132) to rotate are provided below the reagent sampling mechanism (130), the reagent tube clamping claw (132) is fixed on the reagent sampling rotating table (1321), and the reagent sampling rotating table (1321) drives the reagent tube clamping claw (132) to rotate.

8. The fully automatic water quality detection and analysis system according to claim 1, characterized in that: The injection module (133) includes a third bracket (134), a sampling cover removal mechanism (135) arranged on the third bracket (134), a sampling cover removal linear module for driving the sampling cover removal mechanism (135) to move up and down, a sampling claw fixture (138), an injection rotary table (139), an injection needle (141), an injection needle lifting linear module (140) for driving the injection needle (141) to move up and down, an injection needle translation linear module for driving the injection needle (141) to move horizontally, an injection needle cleaning tank, a flowing cleaning pure water pump (136) and a flowing cleaning waste pump (137), wherein the flowing cleaning pure water pump (136) and the flowing cleaning waste pump (137) are both connected to the bottom of the injection needle cleaning tank through a pipeline; the sampling cover removal mechanism (135) ) includes a sampling cover clamp and a sampling cover rotating platform for driving the sampling cover clamp to rotate, the sampling rotating platform (139) is arranged below the sampling cover mechanism (135), the sampling clamp fixture (138) is installed on the sampling rotating platform (139), the sampling cover linear module is used to drive the sampling cover mechanism (135) to rise and fall, the sampling needle lifting linear module (140) drives the sampling needle (141) to rise and fall, the sampling needle translation linear module drives the sampling needle (141) to translate, the sampling needle (141) is installed on the sampling needle translation linear module through the sampling needle lifting linear module (140), and the sampling needle lifting linear module (140) and the sampling needle translation linear module cooperate to realize the lifting and translation of the sampling needle (141).

9. The fully automatic water quality detection and analysis system according to claim 1, characterized in that: The detection module (142) includes a base (143), a support frame (144) arranged on the base (143), a cuvette (145), a sample injection pump (146), a waste pump (147), a DC power supply (148), a tungsten lamp (149), a deuterium lamp (150), a tungsten lamp power supply (151), a deuterium lamp power supply (152), a DC power supply (148) and a spectrometer (153) arranged on the support frame (144); the upper end of the cuvette (145) is connected to the output end of the sample injection pump (146) through a pipeline, and the lower end of the cuvette (145) is connected to the waste pump (147) through a pipeline. ) is connected to the input end of the cuvette (145) through a pipeline; the spectrometer (153) is connected to the cuvette (145) through a Y-type optical fiber, the Y-type optical fiber includes an input end and two output ends, the input end of the Y-type optical fiber is connected to the spectrometer (153), one output end of one Y-type optical fiber is respectively connected to the 10mm light outlet of the cuvette (145), and the other Y-type optical fiber is respectively connected to the 30mm light outlet of the cuvette (145); the light outlet of the tungsten lamp (149) is connected to the light entrance of the cuvette (145) through an optical fiber, and the light outlet of the deuterium lamp (150) is connected to the light entrance of the cuvette (145) through an optical fiber.

10. The fully automatic water quality detection and analysis system according to claim 1, characterized in that: The cleaning module (156) includes a fourth bracket (157) mounted on the frame (101), a cleaning and capping mechanism (158) mounted on the fourth bracket (157), a cleaning and capping linear module for driving the cleaning and capping mechanism (158) to move up and down, a cleaning and air-drying component that is mounted on the fourth bracket (157) and can move up and down and horizontally, a cleaning and lifting linear module (167) for driving the cleaning and air-drying component to move up and down, a cleaning and translating linear module (166) for driving the cleaning and air-drying component to move horizontally, a horizontal rotating table, and a vertical rotating table (167) mounted on the horizontal rotating table. 62), a cleaning clamp (161) mounted on a vertical rotating table (162), a cover washing tank, a cleaning cover washing linear translation module (165) for driving the wash cover to move horizontally, a cleaning liquid valve (159) and a cleaning liquid pump (160); the cleaning cover removal mechanism (158) includes a cleaning cover removal clamp and a cleaning rotating table for driving the cleaning cover removal clamp to rotate; the cleaning and air-drying component includes a cleaning lotion pipe (163) and a cleaning hot air pipe (164), and a waste liquid tank (168) is provided below the cleaning lotion pipe (163) and the cleaning hot air pipe (164).

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