CN111269798B - Device and method for detecting drug residues in tap water - Google Patents
Device and method for detecting drug residues in tap water Download PDFInfo
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- CN111269798B CN111269798B CN202010081085.6A CN202010081085A CN111269798B CN 111269798 B CN111269798 B CN 111269798B CN 202010081085 A CN202010081085 A CN 202010081085A CN 111269798 B CN111269798 B CN 111269798B
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
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- C12Q1/46—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase involving esterase involving cholinesterase
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Abstract
The invention relates to the technical field of tap water detection, in particular to a detection premixing device for drug residues in tap water, which comprises supporting legs and a base, wherein the left side of the upper end of the base is fixedly connected with a water tank, the upper end of the water tank is fixedly connected with a water pump through a water pipe, the right end of the water pump is fixedly connected with a connecting device through a guide pipe, the inner side of the box body is fixedly connected with a feeding device, the lower end of the feeding device is fixedly connected with a first electromagnetic valve through a guide pipe, the other end of the first electromagnetic valve is fixedly connected with a mixing pipe through a guide pipe, the outer side of the lower end of the mixing pipe is fixedly connected with a sealing gasket, and the outer side of the sealing gasket is fixedly connected with a test tube; according to the automatic detection device, the automatic detection of the tap water sample can be realized through the feeding device, the test tube, the water tank, the water pump and the connecting device, the phenomenon that a test result is inaccurate due to manual operation is avoided, and meanwhile, the automatic cleaning device can be automatically cleaned.
Description
Technical Field
The invention relates to the technical field of tap water detection, in particular to a premixed sample forming device used before detection of drug residues in tap water.
Background
The drinking water safety problem is a civil problem closely related to people, a healthy water source is the guarantee of healthy life, the drinking water safety problem is gradually valued by people along with the improvement of living standard and safety consciousness of people, the pesticide residue rapid detector is developed by adopting an enzyme inhibition principle and a photoelectric colorimetry principle, the principle is that organophosphorus and carbamic acid pesticides have inhibition effect on the normal function of cholinesterase, the inhibition rate is in positive correlation with the concentration of the pesticides, and enzyme catalyzes nerve conduction metabolites to hydrolyze under normal conditions, the hydrolysate reacts with color developing agent to produce yellow substance, the change value of luminosity with time is measured by a spectrophotometer to calculate the inhibition rate, whether the sample contains the residues of the organophosphorus or carbamate pesticides can be judged through the inhibition rate, and the on-site rapid detection of the residual organophosphorus and carbamate pesticides can be realized.
At present, the pesticide residue tachymeter is adopted to detect to drug residue in the running water in the market mostly to measure, and it needs the manual work to prepare the required various reagents of test, and the operation is comparatively loaded down with trivial details, in case a certain link misoperation will cause the testing result inaccurate, and also for manual operation to the washing of container after the test is accomplished, if the instrument washs unclean, also can exert an influence to the testing result, consequently, propose a residual detection device's in running water premixing device to above-mentioned problem.
Disclosure of Invention
The invention aims to provide a premixing device for a device for detecting drug residues in tap water, namely a premixing device for preparing a solution for a sample before drug detection so as to obtain a premixed solution for subsequent detection. To solve the problems set forth in the background art described above.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a remaining detection device of medicine in running water, includes supporting legs and base, supporting legs upper end and base fixed connection, base upper end left side fixedly connected with water tank, the water tank upper end leads to pipe fixedly connected with water pump, the water pump right-hand member passes through pipe fixedly connected with connecting device, base upper end left side fixedly connected with box, the inboard fixedly connected with feed arrangement of box, the first solenoid valve of pipe fixedly connected with is passed through to the feed arrangement lower extreme, the first solenoid valve other end passes through pipe fixedly connected with hybrid tube, the hybrid tube lower extreme outside fixedly connected with is sealed to be filled up, the sealed outside fixedly connected with test tube that fills up, test tube lower extreme fixedly connected with second solenoid valve. The mixing pipe is provided with a left side branch pipe, a right side branch pipe and a middle connecting section, wherein the left end of the left side branch pipe is sequentially connected with a left side fixing block, a left side spring and a left side elastic wiping body, and the right end of the right side branch pipe is sequentially connected with a right side fixing block, a right side spring and a right side elastic wiping body; the outer side of the middle connecting section is provided with an electromagnetic adsorption part which forms an adsorption and stretching effect on the left elastic wiping body and the right elastic wiping body in a power-on state.
Preferably, the middle connecting section is connected with a cleaning pipeline, the cleaning pipeline is connected with the middle water tank through an electromagnetic valve, and one end of the cleaning pipeline is connected to the joint of the left branch pipe and the right branch pipe.
Preferably, the box is the setting of cuboid, threaded hole is seted up to the box upper end, base front end fixedly connected with controller.
Preferably, connecting device includes connecting plate and fixing bolt, connecting plate one end leads to pipe and water pump fixed connection, the connecting plate inboard rotates with fixing bolt to be connected, connecting plate other end fixedly connected with rubber buffer, the rubber buffer is round platform form setting, the apopore has been seted up to the rubber buffer inboard.
Preferably, feed arrangement includes funnel, graduated flask and cylinder, the funnel outside and box fixed connection, funnel lower extreme and graduated flask fixed connection, the graduated flask outside and box fixed connection, the graduated flask upside is equipped with the cylinder, cylinder upper end and box fixed connection, cylinder lower extreme fixedly connected with piston, the piston outside and graduated flask sliding connection, the graduated flask lower extreme passes through pipe and first solenoid valve fixed connection.
Preferably, the number of the feeding devices is 4, and the feeding devices are uniformly distributed on the inner side of the box body.
Preferably, the test tube is cylindric setting, and the test tube constitutes for transparent material's glass.
A working method of a premixing device for detecting drug residues in tap water is characterized in that: the method comprises the following steps:
s1: completing a premixing process in a test tube to obtain a premixed liquid to be detected;
s2: starting the electromagnetic adsorption part to be in a power-on state, and generating a magnetic adsorption effect, so that the left elastic wiping body and the right elastic wiping body respectively axially move along the inner walls of the left branch pipe and the right branch pipe, and the inner walls of the left branch pipe and the right branch pipe are wiped and cleaned;
s3: the electromagnetic adsorption part is in a non-electrified state, the magnetic adsorption effect is lost, the left spring and the right spring respectively drive the left elastic wiping body and the right elastic wiping body to recover to the top positions, and the left branch pipe and the right branch pipe are further wiped simultaneously;
the steps of S2 and S3 are repeatedly executed until the cleaning process is completed for the left and right branch pipes, and finally the electromagnetic adsorption portion is maintained in the non-energized adsorption state;
step S21 may be optionally performed between S2 and S3, specifically, when the left and right elastic wipers are moved to the position of the middle connection section, the solenoid valve is actuated to be opened, and the middle water tank sprays water to the left and right elastic wipers through the cleaning pipe to enhance the cleaning process of the left and right elastic wipers to the left and right branch pipes.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the feeding devices and the test tubes, tap water samples, color developing agents, substrates and enzyme solutions required by the test are respectively poured into the measuring cylinder through the hoppers of the four feeding devices, the elongation of the air cylinder is controlled through the controller, the air cylinder pushes the piston, the piston extrudes reagents in the measuring cylinder out of the measuring cylinder, the reagents enter the mixing tube and flow into the test tube, and the arrangement can realize automatic pre-mixing of the tap water samples, is convenient for subsequent sample detection, and avoids inaccurate test results caused by manual pre-mixing;
2. according to the invention, through the arrangement of the water tank, the water pump and the connecting device, the fixing bolt of the connecting device is screwed into the threaded hole formed in the upper end of the box body, and the water pump runs to pump out cleaning liquid in the water tank to the measuring cylinder and the test tube, so that the device is cleaned, and the phenomenon that reagent remains in the device to cause inaccurate test connection tubes is avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention (the electromagnetic absorption portion is in a non-energized state);
FIG. 2 is a schematic view of the overall structure of the present invention (the electromagnetic absorption portion is in the power-on state);
FIG. 3 is a schematic view of the structure of FIG. 1 at point A according to the present invention;
fig. 4 is a schematic view of the overall structure of the mixing tube of the present invention.
In the figure: 1-supporting feet, 2-base, 3-water tank, 4-water pump, 5-connecting device, 501-connecting plate, 502-fixing bolt, 503-rubber plug, 504-water outlet, 6-box, 7-feeding device, 701-funnel, 702-graduated flask, 703-cylinder, 704-piston, 8-first electromagnetic valve, 9-mixing tube, 10-sealing gasket, 11-test tube, 13-second electromagnetic valve, 14-threaded hole, 15-controller; 21-left branch pipe, 22-right branch pipe, 23-middle connecting section, 31-left fixing block, 32-left spring and 33-left elastic wiping body; 41. a right side fixing block, 42-a right side spring and 43-a right side elastic wiping body; 51-cleaning pipeline, 52-electromagnetic valve, 53-and intermediate water tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution:
the utility model provides a remaining for detection premixing device of medicine in running water, includes supporting legs 1 and base 2, 1 upper end of supporting legs and 2 fixed connection of base, 2 upper end left side fixedly connected with water tanks 3 of base, 3 upper ends of water tanks lead to pipe fixedly connected with water pump 4, 4 right-hand members of water pump pass through pipe fixedly connected with connecting device 5, 2 upper end left side fixedly connected with boxes 6 of base, 6 inboard fixedly connected with feed arrangement 7 of box, 7 lower extremes of feed arrangement pass through the first solenoid valve 8 of pipe fixedly connected with, the 8 other ends of first solenoid valve pass through pipe fixedly connected with hybrid tube 9, the sealed pad 10 of hybrid tube 9 lower extreme outside fixedly connected with, the sealed pad 10 outside fixedly connected with test tube 11 that fills up, test tube 11 lower extreme fixedly connected with second solenoid valve 13.
The box 6 is a cuboid, a threaded hole 14 is formed in the upper end of the box 6, a controller 15 is fixedly connected to the front end of the base 2, the arrangement is favorable for automatically cleaning the device, the connecting device 5 comprises a connecting plate 501 and a fixing bolt 502, one end of the connecting plate 501 is fixedly connected with the water pump 4 through a water pipe, the inner side of the connecting plate 501 is rotatably connected with the fixing bolt 502, the other end of the connecting plate 501 is fixedly connected with a rubber plug 503, the rubber plug 503 is arranged in a round platform shape, a water outlet 504 is formed in the inner side of the rubber plug 503, the arrangement is favorable for fixedly connecting the water pipe with the funnel 701, the feeding device 7 comprises a funnel 701, a measuring cylinder 702 and a cylinder 703, the outer side of the funnel 701 is fixedly connected with the box 6, the lower end of the funnel 701 is fixedly connected with the measuring cylinder 702, and the outer side of the measuring cylinder 702 is fixedly connected with the box 6, cylinder 703 is equipped with to graduated flask 702 upside, cylinder 703 upper end and 6 fixed connection of box, cylinder 703 lower extreme fixedly connected with piston 704, piston 704 outside and graduated flask 702 sliding connection, graduated flask 702 lower extreme passes through pipe and 8 fixed connection of first solenoid valve, and this kind of being provided with does benefit to the ration of realizing reagent and prepares, feed arrangement 7's quantity is 4, and feed arrangement 7 evenly distributed is inboard at box 6, and the influence each other between reagent can be avoided in this kind of setting, test tube 11 is cylindric setting, and test tube 11 constitutes for transparent material's glass.
The test tube 11 with the mixed solution is obtained, the test tube 11 is placed in the detector 12 for detection, and then the detection result can be obtained, and further, the detector 12 can be arranged in the premixing device for directly detecting the test tube 11. Or the test tube 11 is taken away and the sample is tested on the tester 12, thereby reducing the problem of manual preparation of the test solution formed by premixing the sample.
The mixing pipe 9 is provided with a left branch pipe 21, a right branch pipe 22 and a middle connecting section 23, wherein the left end of the left branch pipe 21 is sequentially connected with a left fixing block 31, a left spring 32 and a left elastic wiping body 33, and the right end of the right branch pipe 22 is sequentially connected with a right fixing block 41, a right spring 42 and a right elastic wiping body 43; an electromagnetic adsorption part 24 is arranged on the outer side of the middle connecting section 23, and the electromagnetic adsorption part 24 performs an adsorption and stretching action on the left elastic wiping body 33 and the right elastic wiping body 43 in a power-on state. The left and right elastic wipers 33 and 43 are preferably of an elastomeric stretchable material having a volume greater than the diameter of the left and right branch tubes 21 and 22 so as to better form a wiping cleaning of the inner walls of the branch tubes during movement.
The middle connecting section 23 is connected with a cleaning pipeline 51, the cleaning pipeline 51 is connected with a middle water tank 53 through an electromagnetic valve 52, and one end of the cleaning pipeline 51 is connected with the connecting part of the left branch pipe 21 and the right branch pipe 22. When the left and right elastic wipers 33 and 43 are moved to the middle connecting section 23 at the middle position, water is supplied to the cleaning pipe 51 through the middle tank 53 and is jetted toward the left and right elastic wipers 33 and 43, thereby improving the cleaning efficiency. It should be noted that when preparing the premixed liquid sample for the test tube 11, the cleaning operation for the branch tube by the left elastic wiper 33 and the right elastic wiper 43 is not required, and after completing the premixing and preparing, after detecting the sample or after taking away the test tube 11, the cleaning operation for the branch tube by the left elastic wiper 33 and the right elastic wiper 43 is required. In addition, the test tube 11 can be cleaned through the cleaning pipeline 51, and the second electromagnetic valve 13 can be opened during the cleaning process of the test tube 11.
The working process comprises the following steps: the electric appliance is an external power supply, a tap water sample required by a test, a color developing agent, a substrate and an enzyme solution are poured into the measuring cylinder 702 from the funnels 701 of the four feeding devices 7 respectively, the extension amount of the air cylinder 703 is controlled by the controller 15 to achieve quantitative measurement of the reagent amount, the air cylinder 703 pushes the piston 704, the piston 704 extrudes the reagent in the measuring cylinder 702 out of the measuring cylinder 702, the reagent enters the mixing tube 9 and flows into the test tube 11, the fixing bolt 502 of the connecting device 5 is screwed into the threaded hole 14 formed in the upper end of the box body 6, the rubber plug 503 is in a round table shape and can be tightly attached to the funnels 701, the inner side of the rubber plug 503 is provided with the water outlet 504, the water pump 4 runs to pump out cleaning liquid in the water tank 3 to the measuring cylinder 702 and the test tube 11, so that the device is cleaned, and the phenomenon that the reagent is remained in the device to cause inaccurate test connection tube is avoided.
A working method of a premixing device for detecting drug residues in tap water comprises the following steps:
s1: completing the premixing process in the test tube 11 to obtain the premixed liquid to be detected; and detecting the premixed liquid on a detector to finish the detection process.
S2: starting the electromagnetic adsorption part 24 to be in a power-on state, generating a magnetic adsorption effect, so that the left elastic wiping body 33 and the right elastic wiping body 43 respectively move axially along the inner walls of the left branch pipe 21 and the right branch pipe 22, and wiping and cleaning the inner walls of the left branch pipe 21 and the right branch pipe 22;
s3: the electromagnetic adsorption part 24 is in a non-energized state, the magnetic adsorption effect is lost, the left spring 32 and the right spring 42 respectively drive the left elastic wiping body 33 and the right elastic wiping body 43 to recover to the top positions, and the left branch pipe 21 and the right branch pipe 22 are further wiped simultaneously;
the steps of S2 and S3 are repeatedly executed until the cleaning process is completed for the left branch pipe 21 and the right branch pipe 22, and finally the electromagnetic adsorption part 24 is kept in the non-energized adsorption state;
step S21 may be further selectively performed between S2 and S3, in particular, when the left and right elastic wipers 33 and 43 are moved to the position of the middle connecting section 23, the solenoid valve 52 is actuated to be in an open state, and the intermediate tank 53 sprays water to the left and right elastic wipers 33 and 43 through the cleansing pipe 51 to reinforce the cleansing process of the left and right elastic wipers 33 and 43 with respect to the left and right branch pipes 21 and 22.
The number of the feeding devices 7 in the above embodiment is 4, but in the actual use process, according to the actual requirement of the sample to be detected, only two or three feeding devices may need to be started to work, that is, only one or two reagents need to be added to the tap water to be detected to complete the detection process, and in this case, the device can still smoothly complete the mixing and preparation process of the sample.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a remaining detection pre-mixing arrangement of medicine in running water, includes supporting legs (1) and base (2), its characterized in that: the upper end of the supporting leg (1) is fixedly connected with the base (2), the left side of the upper end of the base (2) is fixedly connected with the water tank (3), the upper end of the water tank (3) is fixedly connected with the water pump (4) through a water pipe, the right end of the water pump (4) is fixedly connected with the connecting device (5) through a guide pipe, the left side of the upper end of the base (2) is fixedly connected with the box body (6), the inner side of the box body (6) is fixedly connected with the feeding device (7), the feeding device (7) comprises a funnel (701), a measuring cylinder (702) and an air cylinder (703), the outer side of the funnel (701) is fixedly connected with the measuring cylinder (702), the upper end of the air cylinder (703) is fixedly connected with the box body (6), the lower end of the cylinder (703) is fixedly connected with a piston (704), the outer side of the piston (704) is connected with a measuring cylinder (702) in a sliding manner, and the lower end of the measuring cylinder (702) is fixedly connected with a first electromagnetic valve (8) through a guide pipe; the lower end of the feeding device (7) is fixedly connected with a first electromagnetic valve (8) through a guide pipe, the other end of the first electromagnetic valve (8) is fixedly connected with a mixing pipe (9) through a guide pipe, the outer side of the lower end of the mixing pipe (9) is fixedly connected with a sealing gasket (10), the outer side of the sealing gasket (10) is fixedly connected with a test tube (11), and the lower end of the test tube (11) is fixedly connected with a second electromagnetic valve (13);
the mixing pipe (9) is provided with a left branch pipe (21), a right branch pipe (22) and a middle connecting section (23), the left end of the left branch pipe (21) is sequentially connected with a left fixing block (31), a left spring (32) and a left elastic wiping body (33), and the right end of the right branch pipe (22) is sequentially connected with a right fixing block (41), a right spring (42) and a right elastic wiping body (43); an electromagnetic adsorption part (24) is arranged on the outer side of the middle connecting section (23), and the electromagnetic adsorption part (24) plays a role in adsorption and stretching on the left elastic wiping body (33) and the right elastic wiping body (43) in a power-on state.
2. The device for detecting and premixing drug residues in tap water as claimed in claim 1, wherein:
middle part linkage segment (23) are connected with and wash pipeline (51), wash pipeline (51) and be connected with middle water tank (53) through solenoid valve (52), the one end of washing pipeline (51) is connected the junction of left side branch pipe (21) and right side branch pipe (22).
3. The device for detecting and premixing drug residues in tap water as claimed in claim 1, wherein: the box (6) is the cuboid setting, box (6) upper end set up threaded hole (14), base (2) front end fixedly connected with controller (15).
4. The device for detecting and premixing drug residues in tap water as claimed in claim 1, wherein: connecting device (5) are including connecting plate (501) and fixing bolt (502), connecting plate (501) one end leads to pipe and water pump (4) fixed connection, connecting plate (501) inboard rotates with fixing bolt (502) to be connected, connecting plate (501) other end fixedly connected with rubber buffer (503), rubber buffer (503) are round platform form setting, apopore (504) have been seted up to rubber buffer (503) inboard.
5. The device for detecting and premixing drug residues in tap water according to claim 1, wherein: the number of the feeding devices (7) is 4, and the feeding devices (7) are uniformly distributed on the inner side of the box body (6).
6. The device for detecting and premixing drug residues in tap water as claimed in claim 1, wherein: test tube (11) are cylindric setting, and test tube (11) constitute for transparent material's glass.
7. The operating method of the premix device for detecting drug residues in tap water according to claim 2, wherein: the method comprises the following steps:
s1: completing the premixing process in the test tube (11) to obtain the premixed liquid to be detected;
s2: starting the electromagnetic adsorption part (24) to be in a power-on state, generating a magnetic adsorption effect, so that the left elastic wiping body (33) and the right elastic wiping body (43) respectively move axially along the inner walls of the left branch pipe (21) and the right branch pipe (22), and wiping and cleaning the inner walls of the left branch pipe (21) and the right branch pipe (22);
s3: the electromagnetic adsorption part (24) is in a non-electrified state, the magnetic adsorption effect is lost, the left spring (32) and the right spring (42) respectively drive the left elastic wiping body (33) and the right elastic wiping body (43) to recover to the top positions, and meanwhile, the left branch pipe (21) and the right branch pipe (22) are further wiped;
repeating the steps of S2 and S3 until the cleaning process is completed for the left branch pipe (21) and the right branch pipe (22), and finally keeping the electromagnetic adsorption part (24) in a non-energized adsorption state;
step S21 can be optionally performed between S2 and S3, specifically, when the left elastic wiping body (33) and the right elastic wiping body (43) move to the position of the middle connecting section (23), the electromagnetic valve (52) is started to be in an open state, and the middle water tank (53) sprays water flow to the left elastic wiping body (33) and the right elastic wiping body (43) through the cleaning pipeline (51) so as to strengthen the cleaning process of the left elastic wiping body (33) and the right elastic wiping body (43) for the left branch pipe (21) and the right branch pipe (22).
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| CN109163955A (en) * | 2018-10-10 | 2019-01-08 | 青岛良研信息科技有限公司 | A kind of water quality detection pretreatment unit |
| CN209247789U (en) * | 2018-12-04 | 2019-08-13 | 吕梁学院 | A device for detecting pesticide residues in milk |
| CN109521160A (en) * | 2018-12-13 | 2019-03-26 | 宁波市环境监测中心 | Heavy metal quick screening method in a kind of solid waste Leaching |
| CN110346509A (en) * | 2019-08-26 | 2019-10-18 | 上海仪电科学仪器股份有限公司 | A kind of online permanganate index monitor of water quality and detection method |
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