CN117111130A - Automatic continuous detection system and detection method for environmental tritium - Google Patents

Abstract

The invention discloses an automatic continuous detection system for environmental tritium and a detection method thereof, which are characterized by further comprising a loading and unloading device which is arranged at one side of automatic detection equipment and is used for automatically filling sample water and automatically loading and unloading the filled sample water; the loading and unloading device comprises a reagent bottle loading device for automatically loading the reagent bottles, a manipulator and a receiver for storing the detected reagent bottles. The invention automatically prepares sample water, automatically loads the reagent bottles, automatically puts the sample water and the scintillation liquid into the reagent bottles according to the proportion, then shakes the sample water and the scintillation liquid evenly, weighs the sample water and the scintillation liquid, sends the sample water and the scintillation liquid into automatic detection equipment for detection through a mechanical arm, places the reagent bottles into a collection drawer for collection after the detection is finished, and an operator only needs to add empty reagent bottles into a storage box and take out a plurality of reagent bottles collected in the collection drawer regularly, and the operation of the manual operation equipment is not needed, so that the radiation injury to a human body can be reduced.

Description

Automatic continuous detection system and detection method for environmental tritium

Technical Field

The invention relates to automatic continuous detection of environmental tritium, in particular to an automatic continuous detection system and a detection method of the environmental tritium.

Background

Tritium is a radioactive substance with a half-life of 12.6 years. The tritium in the air eventually forms mostly tritium water-steam which enters the water cycle with normal water, thus exposing the human to radiation. In the environment protection work, monitoring the content of tritium in water and air is widely regarded internationally, and in the existing tritium monitoring method, an indirect measurement method is obviously superior to other methods, and the principle is that an air tritium water sample is prepared by a condensation air method, the water sample is brought back to a laboratory, tritium sample purification is carried out by an artificial distillation concentration method, then the water sample and scintillation liquid are quantified to sample bottles according to a certain proportion, and finally the sample bottles are put into an instrument one by one for analysis.

The existing detection instrument detects in the detection instrument by manually adding a water sample and a scintillation liquid into a sample bottle, the efficiency of the mode is low, the detection needs to be manually carried out in each time, certain radiation hazard is caused to a human body when the concentration of tritium sample is high, and in order to improve the working efficiency, the degree of automation of detection equipment and reduce the hazard to personnel, an environment tritium automatic continuous detection system and a detection method thereof are provided.

Disclosure of Invention

The invention aims to solve the problems and provides an automatic continuous detection system and a detection method for environmental tritium.

In order to achieve the aim, the invention provides an automatic continuous detection system for environmental tritium, which comprises a rack, automatic detection equipment and a control system, wherein the automatic detection equipment is arranged in the rack and used for detecting sample water; the automatic detection equipment is an ultralow background liquid flash spectrometer; the automatic sample water filling and discharging device is characterized by further comprising a feeding and discharging device which is arranged on one side of the automatic detection equipment and used for automatically filling sample water and automatically feeding and discharging the filled sample water to the automatic detection equipment; the loading and unloading device comprises a reagent bottle loading device, a manipulator and a receiver, wherein the reagent bottle loading device is arranged on the mounting rack and used for storing reagent bottles and automatically loading the reagent bottles; the rack is also provided with a clamping device for clamping the reagent bottle, a shaking machine for shaking up the liquid in the reagent bottle and a weighing device for weighing the reagent bottle, wherein the clamping device is used for clamping the reagent bottle and facilitating the mechanical arm to disassemble and assemble the bottle cap on the reagent bottle; the reagent bottle loading attachment contains the case of depositing that is used for depositing the reagent bottle, sets up and moves the guide structure that plays the guide effect to depositing the reagent bottle of incasement in depositing the case, is connected the last work or material rest that is used for reagent bottle material loading with guide structure and installs on last work or material rest and be used for carrying the reagent bottle to last glassware on the last work or material rest from guide structure.

Further preferably, the shaking machine is a shaking machine arranged on the frame, and a protecting frame which limits the reagent bottle and prevents the reagent bottle from falling is arranged on the shaking machine.

Further preferably, the clamping device comprises a cylinder mounted on the frame, a clamping jaw mounted on the cylinder for clamping the reagent bottle, and a bracket mounted on the frame for supporting the cylinder; the support is also provided with a plurality of limiting blocks for limiting the position of the reagent bottle, and the limiting blocks at least comprise limiting blocks which are arranged in the middle of the clamping jaw and close to the air cylinder or comprise limiting blocks which are arranged on two sides of the clamping jaw and limiting blocks which are arranged in the middle of the clamping jaw and close to the air cylinder; the support is provided with a plurality of support rods and a bottom plate fixedly connected with the support rods, the support rods are movably provided with air cylinder support plates, the support rods are sleeved with springs, and the springs are arranged between the air cylinder support plates and the bottom plate; and a limiting rod which has a limiting effect on the position of the cylinder supporting plate is further arranged on the bottom plate, and one end of the limiting rod penetrates through the cylinder supporting plate and is fixedly connected with the bottom plate.

Still preferably, the frame is further provided with a scintillation liquid raw material barrel and a plurality of placing frames, injection sleeves are placed on the placing frames, one injection sleeve is connected with the scintillation liquid raw material barrel through a pipeline, a metering pump is connected to the pipeline, and the other injection sleeve is connected with a pretreatment device of sample water through a pipeline; the rack is also provided with a placing table for placing the bottle caps of the reagent bottles.

Further preferably, the pretreatment device of the sample water is arranged on the rack; the pretreatment device for the sample water comprises a machine case, an evaporation chamber arranged in the machine case, a condensation chamber arranged in the machine case and connected with the evaporation chamber through a pipeline, a liquid collecting chamber connected with the condensation chamber through a pipeline, a medicine supplying mechanism arranged in the machine case and used for automatically and quantitatively supplying medicine to the evaporation chamber, and a cover plate mechanism arranged in the machine case and used for blocking a top channel of the evaporation chamber; the medicine feeding mechanism comprises a quantitative medicine outlet device which is arranged in the case and is positioned above the evaporating chamber, and a medicine bin which is arranged on the quantitative medicine outlet device; the quantitative medicine outlet device comprises a shell arranged on the machine case, a motor arranged in the shell, a medicine outlet valve block arranged on the shell and a discharging head movably arranged in the medicine outlet valve block and connected with the motor in a transmission way; the medicine outlet valve block is provided with a medicine outlet channel, and the medicine bin is arranged on the medicine outlet valve block and is communicated with the medicine outlet channel; the discharging head is provided with a quantitative groove corresponding to the medicine outlet channel.

Further preferably, the cover plate mechanism comprises a motor frame arranged on the chassis, a second motor arranged on the motor frame, a driving block connected with an output shaft of the second motor, a driving plate arranged on the driving block and a cover plate arranged on the driving plate and used for blocking a top channel of the evaporating chamber; an electric heating coil is wound on the outer side of the evaporation chamber; the evaporation chamber is provided with a plurality of inlets and a sewage outlet; a spiral cooling pipe connected with a pipeline for improving the cooling effect is arranged in the condensing chamber, and a cooling liquid inlet and a cooling liquid outlet are also arranged on the condensing chamber; the liquid collecting chamber is also provided with a conductivity sensor for detecting sample water, and is also connected with a metering pump through a pipeline.

Further preferably, the device further comprises a sample collection device arranged on the rack; the sample collection equipment comprises a collection bin which is arranged on the frame and connected with the pretreatment device of the sample water through a pipeline, and a collection cylinder which is arranged on the collection bin.

Further preferably, the guiding structure comprises a guiding frame installed in the storage box, a motor bracket installed in the storage box, a motor III installed on the motor bracket and a rotating piece connected with the motor III and used for driving the reagent bottles in the storage box to move to the guiding frame; the feeding frame is arranged on the storage box and communicated with the guide frame to be arranged upwards in an arc shape; the feeding device comprises a motor IV arranged on a feeding frame, a feeding pushing frame connected with the motor IV, and a material blocking mechanism arranged on the guide frame and the feeding pushing frame and used for blocking the position of the reagent bottles arranged on the guide frame; the material receiving device comprises a material receiving drawer movably arranged in the frame, an arc-shaped guide surface which is arranged in the material receiving drawer and is used for guiding the movement of the reagent bottles in the material receiving drawer and is convenient for the arrangement of the reagent bottles to be in an arc shape, and a material pushing mechanism which is arranged on the material receiving drawer and is used for pushing the movement of the reagent bottles; the pushing mechanism comprises a pusher arranged on the frame and a pushing block arranged on the pusher; the pusher may be an air cylinder or an electric push rod.

Further preferably, the material blocking mechanism comprises a material blocking block movably mounted on the guide frame through a pin shaft, a torsion spring movably mounted on the pin shaft and connected with the material blocking block and the guide frame for driving the material blocking block to block the reagent bottle, a driving rod mounted on the material blocking block, a driving wheel mounted on the driving rod and a discharging block mounted on the material loading pushing frame and matched with the driving wheel to drive the material blocking block to overturn and discharge the reagent bottle; one surface of the discharging block, which is in contact fit with the driving wheel, is provided with a conical surface.

A detection method of an automatic continuous detection system for environmental tritium is characterized by comprising the following steps: the detection method comprises the following steps:

a. preparing the reagent bottles, wherein an operator stores a plurality of reagent bottles in a storage box for use;

b. sample water is pre-treated, and is prepared into sample water through a pre-treatment device and then temporarily stored in a liquid collecting chamber for use;

c. feeding the reagent bottles, pushing the reagent bottles to a feeding position through a feeder, taking the reagent bottles by a manipulator, and then placing the reagent bottles on a clamping device;

d. after the clamping device clamps the reagent bottle, the mechanical arm unscrews the bottle cap of the reagent bottle and then places the bottle cap on the placing table, then the mechanical arm sequentially moves two injection sleeves to the reagent bottle, and quantitative scintillation liquid and sample water are injected into the reagent bottle through the metering pump;

e. the manipulator retrieves the bottle cap and screws the bottle cap onto the reagent bottle, and then the clamp releases the reagent bottle;

f. after the reagent bottle is placed on the shaking machine by the manipulator, the shaking machine is started to shake evenly at regular time;

g. after shaking, the reagent bottle is taken down by the manipulator and placed on the weighing device for weighing, and weighing data are transmitted to the control system;

h. and then the mechanical arm places the weighed reagent bottles into detection equipment for detection, and after detection, the reagent bottles are placed into a material collecting drawer and then wait for the next detection to start.

According to the invention, through the matched use of the pretreatment device of the sample water, the automatic detection equipment, the control system and the automatic feeding and discharging device, the sample water is automatically manufactured, the reagent bottles are automatically fed, the sample water and the scintillation liquid are automatically put into the reagent bottles according to the proportion and then are subjected to shaking and weighing, then the sample water and the scintillation liquid are sent into the automatic detection equipment to be detected by a manipulator, the reagent bottles are placed into a collecting drawer to be collected after the detection is finished, an operator only needs to add empty reagent bottles into a storage box and take out a plurality of reagent bottles collected in the collecting drawer regularly, manual control is not needed, the degree of automation is high, and the radiation injury to a human body can be reduced;

through the arrangement of the loading and unloading device, operators only need to stack the reagent bottles to be used in the storage box at regular intervals and take out the reagent bottles which are arranged and stacked in the material receiving drawer after use, and the detection equipment is not required to be fed and unloaded one by one manually, so that the automation degree and the efficiency are improved, and the use of the full-automatic detection equipment can be met;

through the setting of quantitative medicine outlet device, drive the stub bar through the motor and rotate and drive the ration groove and rotate, accomplish automatic feeding and medicine dosing in the rotation in-process in ration groove to accomplish the ration work of dosing voluntarily, need not the manual control, can be applicable to automatic checkout equipment's continuity and detect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of a partial structure of a sample collection device according to the present invention

FIG. 3 is a schematic structural view of the feeding and discharging device in the invention;

FIG. 4 is a schematic diagram of a pretreatment device according to the present invention;

FIG. 5 is a schematic view of a partial cross-sectional structure of a pretreatment device in the present invention;

FIG. 6 is a schematic view of a partial cross-sectional structure of a pretreatment device in the present invention;

FIG. 7 is a schematic view of a part of the pretreatment device in the present invention;

FIG. 8 is a schematic view of a partial structure of the feeding and discharging device in the invention;

FIG. 9 is a schematic view of the structure of the clamp of the present invention;

FIG. 10 is a schematic view of a partial structure of a reagent bottle feeding apparatus according to the present invention;

FIG. 11 is a schematic view of a partial structure of a reagent bottle feeding apparatus according to another view angle of the present invention;

FIG. 12 is a schematic view of a part of the structure of a reagent bottle feeding apparatus according to the present invention;

FIG. 13 is a schematic view of a part of the feeding device for reagent bottles in the present invention;

FIG. 14 is a schematic view of the structure of the dam mechanism of the present invention;

fig. 15 is a schematic view of the structure of the receiver according to the present invention.

Legend description: 1. a pretreatment device; 11. a chassis; 12. an evaporation chamber; 121. an electric heating coil; 122. an inlet; 123. a sewage outlet; 13. a condensing chamber; 131. a spiral cooling tube; 132. a cooling liquid inlet; 133. a cooling liquid outlet; 14. a liquid collection chamber; 141. a conductivity sensor; 145. a metering pump; 15. a drug supply mechanism; 151. a quantitative medicine discharging device; 152. a medicine bin; 153. a housing; 154. a motor; 155. a medicine outlet valve block; 156. a discharge head; 157. a medicine outlet channel; 158. a quantitative tank; 16. a cover plate mechanism; 161. a motor frame; 162. a second motor; 163. a driving block; 164. a driving plate; 165. a cover plate; 2. an automatic detection device; 3. a control system; 4. feeding and discharging devices; 41. a frame; 411. a placing rack; 412. injecting a sleeve; 413. a placement table; 42. a reagent bottle feeding device; 421. a storage case; 43. a manipulator; 44. a material receiving device; 441. a material receiving drawer; 442. an arc-shaped guide surface; 443. a pushing mechanism; 444. a pusher; 445. a pushing block; 45. a clamp; 451. a limiting frame; 452. a clamping cylinder; 453. a clamping jaw; 454. a limiting block; 455. a support rod; 456. a bottom plate; 457. a cylinder support plate; 458. a spring; 459. a limit rod; 46. shaking up machine; 461. vibrating the shaking device; 462. a protective frame; 47. a weighing device; 48. a guide structure; 481. a feeding frame; 482. feeding a material device; 483. a guide frame; 484. a motor bracket; 485. a third motor; 486. a rotating member; 487. a fourth motor; 488. feeding pushing frames; 49. a material blocking mechanism; 491. a material blocking block; 492. a torsion spring; 493. a driving rod; 494. a driving wheel; 495. discharging blocks; 5. a scintillation liquid raw material barrel; 6. sample collection equipment; 61. a collecting bin; 62. and a collection cylinder.

Description of the embodiments

The invention further provides an automatic continuous detection system and a detection method for environmental tritium, and the automatic continuous detection system and the detection method for environmental tritium are described below with reference to the accompanying drawings.

Referring to fig. 1 to 15, an automatic continuous detection system for environmental tritium comprises a rack 41, a pretreatment device 1 for sample water arranged on the rack 41, an automatic detection device 2 for detecting the sample water, a sample collection device 6 arranged on the rack 41 and a control system 3 for controlling the detection system; the automatic detection equipment 2 is an ultralow background liquid flash spectrometer; the automatic detection device is characterized by further comprising a loading and unloading device 4 which is arranged on one side of the automatic detection device 2 and used for automatically filling the sample water and automatically loading and unloading the filled sample water into the automatic detection device 2; the loading and unloading device 4 comprises a reagent bottle loading device 42, a manipulator 43 and a receiver 44, wherein the reagent bottle loading device 42 is arranged on the mounting frame 41 and used for storing and automatically loading the reagent bottles; the rack 41 is also provided with a clamping device 45 for clamping the reagent bottle, a shaking machine 46 for shaking up the liquid in the reagent bottle and a weighing device 47 for weighing the reagent bottle, wherein the clamping device is used for clamping the reagent bottle and facilitating the mechanical arm 43 to disassemble and assemble the bottle cap on the reagent bottle;

through the cooperation of the arrangement of the pretreatment device 1, the automatic detection equipment 2, the control system 3 and the automatic feeding and discharging device 4, the sample water is automatically prepared, the reagent bottles are automatically fed, the sample water and the scintillation liquid are automatically put into the reagent bottles in proportion and then are uniformly shaken and weighed, then the sample water and the scintillation liquid are sent into the automatic detection equipment 2 through the manipulator 43 for detection, the reagent bottles are placed into the collecting drawer 441 after the detection is finished and then are collected, an operator only needs to add empty reagent bottles into the storage box 421 and take out a plurality of reagent bottles collected in the collecting drawer 441 at regular intervals, manual control is not needed, the degree of automation is high, and the radiation injury to human bodies can be reduced;

through the arrangement of the loading and unloading device 4, an operator only needs to stack the reagent bottles to be used in the storage box 421 at regular intervals and take out the reagent bottles which are arranged and stacked in the material receiving drawer 441 after being used, and the detection equipment is not required to be fed and unloaded one by one manually, so that the automation degree is improved, the efficiency is improved, and the use of the full-automatic detection equipment 2 can be met;

the sample collection device 6 arranged on the frame 41 is arranged on the frame 41, and is connected with a pretreatment device of sample water through a pipeline, and comprises a collection bin 61 and a collection cylinder 62 arranged on the collection bin; the collected water is conveyed into a collection bin through a collection cylinder, and the collection bin conveys the water into a pretreatment device of the sample water through a pipeline for treatment.

Further, the shaking machine 46 is a shaking machine 461 installed on the frame 41, and a protecting rack 462 for limiting the reagent bottles and preventing the reagent bottles from falling is installed on the shaking machine 461;

through the arrangement of the shaking machine 46, the shaking machine 461 drives the reagent bottle to vibrate so as to shake the scintillation liquid and the sample water in the reagent bottle evenly, thereby improving the uniformity and the detection accuracy; through the setting of protection frame 462, play the protection to the reagent bottle and block the effect, drop when avoiding vibrating.

Further, the gripper 45 includes a cylinder 452 mounted on the frame 41, a jaw 453 mounted on the cylinder 452 for gripping the reagent bottle, and a bracket 451 mounted on the frame 41 for supporting the cylinder 452; a plurality of limiting blocks 454 for limiting the position of the reagent bottle are also arranged on the bracket 451, and at least comprise limiting blocks 454 which are arranged in the middle of the clamping jaw and are close to the air cylinder 452, or comprise limiting blocks 454 which are arranged at two sides of the clamping jaw and limiting blocks 454 which are arranged in the middle of the clamping jaw and are close to the air cylinder 452; a plurality of support rods 455 and a bottom plate 456 fixedly connected with the support rods 455 are arranged on the support frame 451, a cylinder support plate 457 is movably arranged on the support rods 455, a spring 458 is sleeved on the support rods 455, and the spring 458 is positioned between the cylinder support plate 457 and the bottom plate 456; a limiting rod 459 for limiting the position of the cylinder supporting plate 457 is also arranged on the bottom plate 456, and one end of the limiting rod 459 penetrates through the cylinder supporting plate 457 and is fixedly connected with the bottom plate 456;

through the arrangement of the limiting block 454, the clamping jaw 453 is matched to limit the position of the reagent bottle while supporting the reagent bottle;

the clamping cylinder 452 is used for driving the clamping jaw 453 to clamp the reagent bottle, the manipulator 43 is convenient for screwing the bottle cap of the reagent bottle after clamping the reagent bottle, and the manipulator 43 is a rotatable manipulator 43;

a spring 458 is arranged between the cylinder supporting plate 457 and the bottom plate 456, the cylinder 452 is arranged on the cylinder supporting plate 457, so that the cylinder 452 can move up and down to a certain extent through the spring 458, when the manipulator 43 contacts with the bottle cover, a certain downward pressure is generated to apply force to the cylinder 452, and the cylinder 452 is buffered through the spring 458, so that the manipulator 43 is prevented from being in hard contact with the reagent bottle to generate collision; by the provision of the stopper rod 459, the position of the cylinder support plate 457 on the support pole 455 is defined.

Further, the frame 41 is further provided with a scintillation liquid raw material barrel 5 and a plurality of placing frames 411, the placing frames 411 are provided with injection sleeves 412, one injection sleeve 412 is connected with the scintillation liquid raw material barrel 5 through a pipeline, a metering pump is connected to the pipeline, and the other injection sleeve 412 is connected with the pretreatment device 1 of the sample water through a pipeline; the rack 41 is also provided with a placing table 413 for placing reagent bottle caps; through the setting of injection cover 412, after snatching injection cover 412 through manipulator 43 place to reagent bottle bottleneck department, squeeze into the reagent bottle with quantitative scintillation liquid and sample water through measuring pump 145.

Further, the pretreatment device 1 for sample water comprises a case 11, an evaporation chamber 12 arranged in the case 11, a condensation chamber 13 arranged in the case 11 and connected with the evaporation chamber 12 through a pipeline, a liquid collecting chamber 14 connected with the condensation chamber 13 through a pipeline, a medicine supplying mechanism 15 arranged in the case 11 and used for automatically and quantitatively supplying medicine to the evaporation chamber 12, and a cover plate mechanism 16 arranged in the case 11 and used for blocking a top channel of the evaporation chamber 12; the medicine feeding mechanism 15 comprises a quantitative medicine discharging device 151 arranged in the case 11 and above the evaporating chamber 12, and a medicine bin 152 arranged on the quantitative medicine discharging device 151; the quantitative medicine discharging device 151 comprises a shell 153 arranged on the machine case 11, a motor 154 arranged in the shell 153, a medicine discharging valve block 155 arranged on the shell 153 and a discharging head 156 movably arranged in the medicine discharging valve block 155 and in transmission connection with the motor 154; the medicine outlet valve block 155 is provided with a medicine outlet channel 157, and the medicine bin 152 is arranged on the medicine outlet valve block 155 and is communicated with the medicine outlet channel 157; the discharging head 156 is provided with a quantitative groove 158 corresponding to the medicine outlet channel 157 in position;

through the arrangement of the quantitative medicine discharging device 151, the motor 154 drives the discharging head 156 to rotate so as to drive the quantitative groove 158 to rotate, and automatic medicine feeding and medicine feeding are completed in the rotation process of the quantitative groove 158, so that quantitative medicine feeding work is automatically completed;

through the setting of play medicine passageway 157, make the medicine in the medicine storehouse 152 move down to go out in the medicine passageway 157 through self gravity, when quantitative groove 158 rotates to with play medicine passageway 157 intercommunication, the powder falls into quantitative groove 158 through self gravity and fills quantitative groove 158, along with quantitative groove 158's rotation, drives the powder in quantitative groove 158 and moves thereupon, only need according to the medicine dosage and quantitative groove 158's medicine storage and control discharge head 156 rotation number of turns can when dosing.

Further, the cover plate mechanism 16 comprises a motor frame 161 installed on the chassis 11, a second motor 162 installed on the motor frame 161, a driving block 163 connected with an output shaft of the second motor 162, a driving plate 164 installed on the driving block 163, and a cover plate 165 installed on the driving plate 164 for blocking a top channel of the evaporation chamber 12;

through the setting of apron mechanism 16, when needs carry out the medicine dosing, motor two 162 drives apron 165 and removes and open evaporation chamber 12 top passageway, makes the medicine can throw into evaporation chamber 12 in, and when evaporation chamber 12 carries out evaporation work, motor two 162 drive apron 165 remove to evaporation chamber 12 top passageway shutoff top passageway, the steam that avoids producing during the evaporation flows from the top passageway.

Further, an electric heating coil 121 is wound around the outside of the evaporation chamber 12; the evaporation chamber 12 is provided with a plurality of inlets 122 and a sewage outlet 123; a spiral cooling pipe 131 connected with a pipeline for improving the cooling effect is arranged in the condensing chamber 13, and a cooling liquid inlet 132 and a cooling liquid outlet 133 are also arranged on the condensing chamber 13; the liquid collecting chamber 14 is also provided with a conductivity sensor 141 for detecting sample water, and the liquid collecting chamber 14 is also connected with a metering pump 145 through a pipeline;

by the arrangement of the electric heating coil 121, the evaporating chamber 12 is heated and the water mixed with the medicine powder in the evaporating chamber 12 is evaporated;

the liquid in the liquid collection chamber is returned to the evaporation chamber 12 for re-evaporation through the arrangement of the inlet 122 and the pipe for connecting the water inlet or the connection of the pipe and the liquid collection chamber;

by arranging the spiral cooling pipe 131 in the condensing chamber 13, the heat exchange duration of steam and cooling water is prolonged, and the heat exchange condensing effect is improved; the cooling liquid inlet 132 and the cooling liquid outlet 133 are connected with a fan for radiating the cooling water, and the like, and the cooling water can be pumped into the condensation chamber 13 through a pump after being subjected to heat exchange and cooling by the fan to form circulation, so that water resources are saved;

the conductivity sensor 141 is used for detecting the conductivity of the sample water in the liquid collecting chamber 14 through the arrangement of the conductivity sensor 141, and the unqualified sample water is pumped back to the evaporation chamber 12 through a pump to be evaporated again or the unqualified sample water is evaporated again after the dosage is increased; by the arrangement of the metering pump 145, the sample water in the liquid collecting chamber 14 is quantitatively pumped into the automatic detection equipment for detection.

Further, the reagent bottle loading device 42 comprises a storage box 421 for storing reagent bottles, a guiding structure 48 arranged in the storage box 421 for guiding the movement of the reagent bottles in the storage box 421, a loading frame 481 connected with the guiding structure 48 for loading the reagent bottles, and a loading device 482 arranged on the loading frame 481 for conveying the reagent bottles from the guiding structure 48 to the loading frame 481; the guiding structure 48 comprises a guiding frame 483 installed in the storage box 421, a motor bracket 484 installed in the storage box 421, a motor III 485 installed on the motor bracket 484, and a rotating member 486 connected with the motor III 485 and used for driving the reagent bottles in the storage box 421 to move to the guiding frame 483; the feeding frame 481 is installed on the storage case 421 and is communicated with the guide frame 483 to be arranged upwards in an arc shape; the feeder 482 comprises a motor IV 487 arranged on the feeding frame 481, a feeding pushing frame 488 connected with the motor IV 487, and a stop mechanism 49 arranged on the guide frame 483 and the feeding pushing frame 488 and used for stopping the position of the reagent bottles arranged on the guide frame 483; the material receiving device 44 comprises a material receiving drawer 441 movably mounted in the frame 41, an arc guiding surface 442 mounted in the material receiving drawer 441 for guiding the movement of the reagent bottles in the material receiving drawer 441 and facilitating the arrangement of the reagent bottles in an arc shape, and a pushing mechanism 443 mounted on the material receiving drawer 441 for pushing the movement of the reagent bottles; the pushing mechanism 443 includes a pusher 444 mounted on the frame 41 and a pushing block 445 mounted on the pusher 444; the pusher 444 may be an air cylinder or an electric push rod;

the reagent bottles stacked in the storage box 421 are guided and limited by the arrangement of the guide frame 483; the third motor 485 drives the rotating member 486 to rotate so as to drive the reagent bottles on the rotating member 486 to act along with the rotating member 486, thereby enabling the reagent bottles in the storage box 421 to move to the guide frame 483 for arrangement and waiting for feeding;

the feeding pushing frame 488 is driven to rotate by the motor IV 487 so as to drive the reagent bottles at the feeding level to move upwards along the feeding frame 481 and wait for the manipulator 43 to clamp and pick up the materials; through the arrangement of the stop mechanism 49, when the feeding device 482 feeds the reagent bottles, the stop mechanism 49 automatically blocks the reagent bottles arranged on the guide frame 483, so that the condition that the reagent bottles cannot be normally used due to the fact that the feeding pushing frame 488 is blocked due to the fact that the reagent bottles are moved to the feeding position is avoided, and meanwhile, after the feeding pushing frame 488 finishes feeding reset, the stop mechanism 49 is automatically opened, so that the reagent bottles arranged on the guide frame 483 automatically move to the feeding position to wait for feeding;

by arranging the arc-shaped guide surface 442 in the material receiving drawer 441, the reagent bottles pushed into the material receiving drawer 441 are guided by the arc-shaped guide surface 442, so that the reagent bottles piled in the material receiving drawer 441 are automatically and orderly arranged in the material receiving drawer 441;

when the manipulator 43 puts the reagent bottles into the receiving drawer 441, the pushing block 445 is pushed by the pusher 444, and the pushing block 445 pushes the reagent bottles to move forward by one station, and simultaneously pushes the reagent bottles arranged in front to move forward by one station, so that the reagent bottles arranged in the receiving drawer 441 automatically move forward.

Further, the material blocking mechanism 49 comprises a material blocking block 491 movably mounted on the guide frame 483 through a pin shaft, a torsion spring 492 movably mounted on the pin shaft and connected with the material blocking block 491 and the guide frame 483 for driving the material blocking block 491 to block the reagent bottle, a driving rod 493 mounted on the material blocking block 491, a driving wheel 494 mounted on the driving rod 493, and a material discharging block 495 mounted on the material pushing frame 488 and matched with the driving wheel 494 to drive the material blocking block 491 to turn over and discharge the reagent bottle; one surface of the discharging block 495, which is in contact fit with the driving wheel 494, is provided with a conical surface;

through the arrangement of the torsion spring 492, the baffle block 491 is driven to overturn downwards by the reset force of the torsion spring 492 to block the reagent bottles arranged on the feeding frame 481, so that the reagent bottles are prevented from moving to the feeding level in the feeding process; meanwhile, through the arrangement of the discharging block 495, the driving wheel 494 and the driving rod, and the fact that one surface of the discharging block 495, which is in contact with the driving wheel 494, is set to be a conical surface, when the feeding pushing frame 488 pushes the reagent bottles to feed, the discharging block 495 is driven to move, so that the driving wheel 494 moves along the conical surface and then the blocking block 491 is turned downwards by the reset force of the torsion spring 492, when the feeding pushing frame 488 resets, the driving wheel 494 is extruded upwards along the conical surface, the torsion spring 492 is extruded while the blocking block 491 is turned upwards, and until the reagent bottles move to the feeding level of the feeding frame 481 after the feeding pushing frame 488 resets and wait for feeding.

The detection method comprises the following steps:

a. the reagent bottles are prepared, and an operator stores a plurality of reagent bottles in a storage box 421 for use;

b. sample water pretreatment, namely pumping water into the evaporation chamber 12 from a water inlet through a water supply pump to quantitatively feed the water into the evaporation chamber 12 through a pipeline, and then feeding corresponding medicine according to the quantitative water and a set proportion, wherein during feeding, a motor II 162 is started, the motor II 162 drives a cover plate 165 to move so as to expose a top channel of the evaporation chamber 12, a motor 154 is started, the motor 154 drives a discharge head 156 to rotate, the rotation number is determined according to the required medicine amount, and the medicine amount fed by each rotation is consistent; after the throwing, the second motor 162 drives the cover plate 165 to reset and cover the top channel of the evaporation chamber 12, then the electric heating coil 121 is started, the evaporation chamber 12 is heated by the electric heating coil 121, so that the water mixed with the medicine powder in the evaporation chamber 12 is evaporated, the steam enters the spiral cooling tube 131 in the condensation chamber 13 through a pipeline, and exchanges heat with cooling water to be condensed while moving in the spiral cooling tube 131, and the condensed water flows into the liquid collecting chamber 14; the conductivity sensor 141 installed on the liquid collecting chamber 14 detects the sample water, if the detection is failed, the sample water is pumped back to the evaporating chamber 12 by a pump to be re-evaporated or the sample water is added with medicines to be re-evaporated, and if the detection is passed, the sample water is stored in the liquid collecting chamber 14 to be used;

c. the reagent bottles are fed, a motor III 485 is started, the motor III 485 drives a rotating piece 486 to rotate, reagent bottles in a storage box 421 are driven to move to a guide frame 483, the reagent bottles at the forefront end move to a feeding station of a feeding frame 481 along the guide frame 483, then a motor IV 487 is started, the motor IV 487 drives a feeding pushing frame 488 to rotate, the reagent bottles are pushed to move upwards to a discharging position along the feeding frame 481, the feeding pushing frame 488 drives a discharging block 495 to synchronously act while rotating, the reagent bottles on the feeding frame 481 are driven to overturn downwards by a conical surface of the discharging block 495 and the reset force of a torsion spring 492, and the reagent bottles are conveyed to the discharging station of the feeding frame 481 and then are clamped by a mechanical arm 43 and placed at a clamping device 45;

d. the clamping cylinder 452 drives the clamping jaw 453 to screw off the bottle cap of the reagent bottle, then the bottle cap of the reagent bottle is placed on the placing table 413, then the two injection sleeves 412 are sequentially moved to the reagent bottle by the mechanical arm 43, and quantitative scintillation liquid and sample water are respectively injected into the reagent bottle by the metering pump 145 and then reset;

e. the manipulator 43 retrieves the cap and screws it onto the reagent bottle, and then clamps the cylinder 452 to unclamp the reagent bottle;

f. the manipulator 43 puts the reagent bottle on the vibration shaking device 461, then starts the vibration shaking device 461 to shake evenly at regular time, the shaking time is set in advance, and the reagent bottle is controlled by the control system 3;

g. after shaking, the manipulator 43 takes down the reagent bottles and places the reagent bottles on the weighing device 47 for weighing, and weighing data are transmitted to the control system 3;

h. then the mechanical arm 43 is used for placing the weighed reagent bottles into the detection equipment for detection, the reagent bottles are placed into the receiving drawer 441 after the detection is completed, then the pusher 444 is started, the pusher 444 pushes the reagent bottles to move forwards, and the reagent bottles arranged in the receiving drawer 441 move forwards along the inner wall of the receiving drawer 441 and the arc-shaped guide surface 442 for collection;

finally, waiting for the next detection to start, and working in the same steps in a circulation manner after the detection is started, the operator periodically supplements the reagent bottles in the storage box 421 and removes the reagent bottles collected in the material receiving drawer 441.

The scope of protection of the present invention is not limited to the above embodiments and variations thereof. Conventional modifications and substitutions by those skilled in the art based on the content of the present embodiment fall within the protection scope of the present invention.

Claims (10)

1. An automatic continuous detection system for environmental tritium comprises a rack (41), automatic detection equipment (2) arranged in the rack (41) for detecting sample water and a control system (3) for controlling the detection system; the automatic detection equipment (2) is an ultralow background liquid flash spectrometer; the automatic sample filling and discharging device is characterized by further comprising a loading and discharging device (4) which is arranged on one side of the automatic detection equipment (2) and used for automatically filling the sample water and automatically loading and unloading the filled sample water into the automatic detection equipment (2); the loading and unloading device (4) comprises a reagent bottle loading device (42) which is arranged on the mounting frame (41) and used for automatically loading the reagent bottles, a manipulator (43) and a receiver (44) which is used for storing the detected reagent bottles; the machine frame (41) is also provided with a clamping device (45) for clamping the reagent bottle and facilitating the mechanical arm (43) to disassemble and assemble the bottle cap on the reagent bottle, a shaking machine (46) for shaking up the liquid in the reagent bottle and a weighing device (47) for weighing the reagent bottle; the reagent bottle loading attachment (42) contains and is used for depositing reagent bottle deposit case (421), sets up in depositing case (421) to depositing the guide structure (48) that plays the guide effect to the reagent bottle removal in case (421), is connected with guide structure (48) and is used for the material loading frame (481) of reagent bottle material loading and installs on last frame (481) and be used for carrying the reagent bottle from guide structure (48) department to last glassware (482) on last frame (481).

2. An environmental tritium automatic continuous detection system as claimed in claim 1, wherein: the shaking machine (46) is a shaking machine (461) arranged on the frame (41), and a protective frame (462) which limits the reagent bottle and prevents the reagent bottle from falling is arranged on the shaking machine (461).

3. An environmental tritium automatic continuous detection system as claimed in claim 1, wherein: the clamping device (45) comprises an air cylinder (452) arranged on the frame (41), a clamping jaw (453) arranged on the air cylinder (452) and used for clamping a reagent bottle, and a bracket (451) arranged on the frame (41) and used for supporting the air cylinder (452); a plurality of limiting blocks (454) for limiting the position of the reagent bottle are also arranged on the bracket (451), and the limiting blocks at least comprise limiting blocks (454) which are arranged in the middle of the clamping jaw and are close to the air cylinder (452) or comprise limiting blocks (454) which are arranged on two sides of the clamping jaw and limiting blocks (454) which are arranged in the middle of the clamping jaw and are close to the air cylinder (452); a plurality of supporting rods (455) and a bottom plate (456) fixedly connected with the supporting rods (455) are arranged on the support (451), the supporting rods (455) are movably provided with a cylinder supporting plate (457), the supporting rods (455) are sleeved with springs (458), and the springs (458) are arranged between the cylinder supporting plate (457) and the bottom plate (456); and a limiting rod (459) for limiting the position of the cylinder supporting plate (457) is further arranged on the bottom plate (456), and one end of the limiting rod (459) penetrates through the cylinder supporting plate (457) and is fixedly connected with the bottom plate (456).

4. An environmental tritium automatic continuous detection system as claimed in claim 1, wherein: the frame (41) is also provided with a scintillation liquid raw material barrel (5) and a plurality of placing frames (411), injection sleeves (412) are placed on the placing frames (411), one injection sleeve (412) is connected with the scintillation liquid raw material barrel (5) through a pipeline, a metering pump is connected to the pipeline, and the other injection sleeve (412) is connected with a pretreatment device (1) of sample water through a pipeline; the rack (41) is also provided with a placing table (413) for placing the reagent bottle caps.

5. An environmental tritium automatic continuous detection system as claimed in claim 4, wherein: the pretreatment device (1) of the sample water is arranged on the rack (41); the pretreatment device (1) for the sample water comprises a machine case (11), an evaporation chamber (12) arranged in the machine case (11), a condensation chamber (13) arranged in the machine case (11) and connected with the evaporation chamber (12) through a pipeline, a liquid collecting chamber (14) connected with the condensation chamber (13) through a pipeline, a medicine feeding mechanism (15) arranged in the machine case (11) and used for automatically and quantitatively feeding medicine to the evaporation chamber (12), and a cover plate mechanism (16) arranged in the machine case (11) and used for blocking a top channel of the evaporation chamber (12); the medicine feeding mechanism (15) comprises a quantitative medicine outlet device (151) which is arranged in the machine case (11) and is positioned above the evaporation chamber (12) and a medicine bin (152) which is arranged on the quantitative medicine outlet device (151); the quantitative medicine outlet device (151) comprises a shell (153) arranged on the machine case (11), a motor (154) arranged in the shell (153), a medicine outlet valve block (155) arranged on the shell (153) and a discharging head (156) movably arranged in the medicine outlet valve block (155) and connected with the motor (154) in a transmission way; the medicine outlet valve block (155) is provided with a medicine outlet channel (157), and the medicine bin (152) is arranged on the medicine outlet valve block (155) and is communicated with the medicine outlet channel (157); the discharging head (156) is provided with a quantitative groove (158) corresponding to the medicine outlet channel (157).

6. An environmental tritium automatic continuous detection system as in claim 5, wherein: the cover plate mechanism (16) comprises a motor frame (161) arranged on the chassis (11), a motor II (162) arranged on the motor frame (161), a driving block (163) connected with an output shaft of the motor II (162), a driving plate (164) arranged on the driving block (163) and a cover plate (165) arranged on the driving plate (164) and used for blocking a top channel of the evaporation chamber (12); an electric heating coil (121) is wound on the outer side of the evaporation chamber (12); the evaporation chamber (12) is provided with a plurality of inlets (122) and a sewage outlet (123); a spiral cooling pipe (131) connected with a pipeline for improving the cooling effect is arranged in the condensing chamber (13), and a cooling liquid inlet (132) and a cooling liquid outlet (133) are also arranged on the condensing chamber (13); the liquid collecting chamber (14) is also provided with a conductivity sensor (141) for detecting sample water, and the liquid collecting chamber (14) is also connected with a metering pump (145) through a pipeline.

7. An environmental tritium automatic continuous detection system as in claim 5, wherein: the device also comprises a sample collection device (6) arranged on the rack (41); the sample collection device (6) comprises a collection bin (61) which is arranged on the frame (41) and is connected with the pretreatment device of the sample water through a pipeline, and a collection cylinder (62) which is arranged on the collection bin.

8. An environmental tritium automatic continuous detection system as claimed in claim 1, wherein: the guide structure (48) comprises a guide frame (483) arranged in the storage box (421), a motor bracket (484) arranged in the storage box (421), a motor III (485) arranged on the motor bracket (484) and a rotating piece (486) connected with the motor III (485) and used for driving the reagent bottles in the storage box (421) to move to the guide frame (483); the feeding frame (481) is arranged on the storage box (421) and communicated with the guide frame (483) to be arranged upwards in an arc shape; the feeder (482) comprises a motor IV (487) arranged on the feeding frame (481), a feeding pushing frame (488) connected with the motor IV (487), and a blocking mechanism (49) arranged on the guide frame (483) and the feeding pushing frame (488) and used for blocking the positions of reagent bottles arranged on the guide frame (483); the material receiving device (44) comprises a material receiving drawer (441) movably arranged in the frame (41), an arc-shaped guide surface (442) which is arranged in the material receiving drawer (441) and is used for guiding the movement of the reagent bottles in the material receiving drawer (441) and is convenient for the arrangement of the reagent bottles to be arranged in an arc shape, and a material pushing mechanism (443) which is arranged on the material receiving drawer (441) and is used for pushing the reagent bottles to move; the pushing mechanism (443) comprises a pusher (444) mounted on the frame (41) and a pushing block (445) mounted on the pusher (444); the pusher (444) may be a pneumatic cylinder or an electric push rod.

9. An environmental tritium automatic continuous detection system as claimed in claim 1, wherein: the material blocking mechanism (49) comprises a material blocking block (491) movably mounted on a guide frame (483) through a pin shaft, a torsion spring (492) movably mounted on the pin shaft and connected with the material blocking block (491) and the guide frame (483) for driving the material blocking block (491) to block a reagent bottle, a driving rod (493) mounted on the material blocking block (491), a driving wheel (494) mounted on the driving rod (493) and a discharging block (495) mounted on a material feeding pushing frame (488) and matched with the driving wheel (494) to drive the material blocking block (491) to turn over so as to discharge the reagent bottle; the surface of the discharging block (495) in contact with and matched with the driving wheel (494) is provided with a conical surface.

10. A method for detecting an environmental tritium automatic continuous detection system as claimed in any one of claims 1 to 9, characterized by: the detection method comprises the following steps:

a. preparing the reagent bottles, wherein an operator stores a plurality of reagent bottles in a storage box for use;

b. sample water is pre-treated, and is prepared into sample water through a pre-treatment device and then temporarily stored in a liquid collecting chamber for use;

c. feeding the reagent bottles, pushing the reagent bottles to a feeding position through a feeder, taking the reagent bottles by a manipulator, and then placing the reagent bottles on a clamping device;

d. after the clamping device clamps the reagent bottle, the mechanical arm unscrews the bottle cap of the reagent bottle and then places the bottle cap on the placing table, then the mechanical arm sequentially moves two injection sleeves to the reagent bottle, and quantitative scintillation liquid and sample water are injected into the reagent bottle through the metering pump;

e. the manipulator retrieves the bottle cap and screws the bottle cap onto the reagent bottle, and then the clamp releases the reagent bottle;

f. after the reagent bottle is placed on the shaking machine by the manipulator, the shaking machine is started to shake evenly at regular time;

g. after shaking, the reagent bottle is taken down by the manipulator and placed on the weighing device for weighing, and weighing data are transmitted to the control system;

h. and then the mechanical arm places the weighed reagent bottles into detection equipment for detection, and after detection, the reagent bottles are placed into a material collecting drawer and then wait for the next detection to start.