CN113324801B - Sampler for detecting content of two insects in water and sampling method thereof - Google Patents
Sampler for detecting content of two insects in water and sampling method thereof Download PDFInfo
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- CN113324801B CN113324801B CN202110595630.8A CN202110595630A CN113324801B CN 113324801 B CN113324801 B CN 113324801B CN 202110595630 A CN202110595630 A CN 202110595630A CN 113324801 B CN113324801 B CN 113324801B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 380
- 241000238631 Hexapoda Species 0.000 title claims abstract description 26
- 238000005070 sampling Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000012535 impurity Substances 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 4
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- 238000004804 winding Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 description 10
- 238000005086 pumping Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
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- 241000223935 Cryptosporidium Species 0.000 description 2
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- 208000030507 AIDS Diseases 0.000 description 1
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- 241000251539 Vertebrata <Metazoa> Species 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention relates to a sampler for detecting the content of two insects in water and a sampling method thereof, the sampler comprises a case, the outer side of the case is respectively provided with a water inlet and a water outlet, the outlet end of the water inlet is connected with a pressure pump through a first pipe body, the other end of the pressure pump is connected with a second pipe body, the outlet end of the second pipe body is connected with a filter for filtering the two insects in a water sample, the outlet end of the filter is connected with a third pipe body, the other end of the third pipe body is connected with a flowmeter, one end of the flowmeter, which is far away from the third pipe body, is provided with a connector, the inlet end of the connector is fixedly connected with the flowmeter, the outlet end is fixedly connected with the water outlet, a control system is arranged in the case, the control system is respectively and electrically connected with the pressure pump and the flowmeter, is not limited by a faucet, the sampler can be more convenient to carry, can finish the collection by one person, and reduces the labor intensity, the sampling result is reliable, and is easy and simple to handle, and this force pump not only can provide the power supply and can also filter the impurity in the water sample.
Description
Technical Field
The invention relates to the technical field of public health detection equipment, in particular to a sampler for detecting the content of two insects in water and a sampling method thereof.
Background
Water is a substance necessary for the normal metabolism of the human body, and the body normally discharges about 1.5L of water through the skin, internal organs, lungs, and kidneys every day to ensure the discharge of toxins from the body.
The two insects are cryptosporidium and giardia, and the cryptosporidium is a coccidiosis parasite with small volume. The cryptosporidium parvum is widely existed in various vertebrates, mainly cryptosporidium parvum causes cryptosporidiosis, is zoonosis with diarrhea as main clinical expression, is listed as the most common 6 kinds of diarrhea diseases in the world, WHO determines cryptosporidiosis as one of suspected indexes of AIDS in 1986, and cryptosporidium parvum is an important opportunistic pathogenic protozoon.
The two types of insects can survive in drinking water easily and cause great harm to human bodies, the existing detection equipment needs to be connected with a water faucet for detection, the water faucet is not provided with a power source for water pumping when the existing detection equipment leaves, the use is difficult in the outdoor water quality detection process without the power source, and the detection process needs cooperation of a plurality of people.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a sampler for detecting the content of two insects in water and a sampling method thereof, so as to solve the technical problems.
The technical scheme of the invention is realized as follows: the utility model provides a sample thief for detecting two worm contents in quality of water, includes quick-witted case, the outside of machine case is equipped with water inlet and delivery port respectively, the exit end of water inlet is connected with the force pump through first body, the other end of force pump is connected with the second body, the exit end of second body is connected with and is used for carrying out filterable filter to two worms in the water sample, the exit end of filter is connected with the third body, the other end of third body is connected with the flowmeter, the one end that the flowmeter deviates from the third body is equipped with the joint, the entry end and the flowmeter fixed connection of joint, exit end and delivery port fixed connection, the machine incasement is equipped with control system, control system respectively with force pump and flowmeter electric connection.
By adopting the technical scheme, if the water sample has no power source, the water sample can be extracted by the pressure pump, the efficiency of extracting the water sample is higher, the flow rate is constant in the extraction process, the water sample is extracted when the pressure pump operates, the water sample enters the pressure pump through the first pipe body and then is discharged into the filter through the second pipe body to filter two insects, redundant water is discharged through the filter, the redundant water enters the flowmeter through the third pipe body, the flowmeter detects the total flow and the flow rate of the water sample, so that the extraction process of the pressure pump can stably operate, the real-time monitoring is realized, the flowmeter is convenient to feed back to the control system, the control system controls the working state of the pressure pump, the use efficiency is higher, the outdoor sampling process is more convenient and is not limited by the presence or absence of a faucet, all devices are arranged in the case, can be more convenient carry, the collection of water sample also can be accomplished to alone, has reduced the intensity of labour, and the sampling result is reliable, and is easy and simple to handle, and this force pump not only can provide the power supply and can also filter the impurity in the water sample.
The invention is further configured to: the machine case is internally provided with a mounting box, the filter is vertically arranged in the mounting box, the inlet end of the filter faces upwards, the outlet end of the filter faces downwards, and the inlet end of the filter is connected with the outlet end of the second pipe body.
Through adopting above-mentioned technical scheme, set up the filter perpendicularly and vertical setting promptly, made things convenient for the filtration to moisture, prevent the water refluence, can also let the even deposit of water sample make things convenient for the detection in later stage simultaneously in the filter.
The invention is further configured to: be equipped with the filter chamber in the filter, be equipped with the filter core in the filter chamber, the filter core closely laminates with the filter chamber towards one side of filter entry end, the filter core is inconsistent with the filter chamber towards one side of filter exit end, be equipped with first sealing washer in the filter chamber entry end, first sealing washer compresses tightly with the filter core cooperation and realizes sealing, the exit end department of filter chamber is equipped with the draw-in groove, the filter core is inconsistent with the draw-in groove.
Through adopting above-mentioned technical scheme, because the top and the filter chamber of filter core closely laminate after the water sample gets into the filter, consequently the water sample only can get into from the filter core, and the filter chamber entering discharge is gone into again to the filtration through the filtration of filter core, and the upper end and the lower extreme of filter core all conflict the cooperation, have realized the fixed of filter core, more stable when using, and the filter effect is better.
The invention is further configured to: the filter core includes fixing base, lower fixing base, strains pole and first filter screen, strain the one end of pole respectively with last fixing base and lower fixing base fixed connection, it sets up for cavity to strain the pole, a plurality of infiltration holes have been seted up on the outer wall of straining the pole, first filter screen winding is in the outside of straining the pole to realize that two worms filter in straining the pole or in the first filter screen and moisture oozes by first filter screen, it is located filter inlet end under and locates to be equipped with a plurality of inlet openings to go up the fixing base.
Through adopting above-mentioned technical scheme, the water sample is followed the inlet opening and is impressed in the filter rod, oozes from the filter rod through the infiltration hole, filters two worms through first filter screen, and two worms are attached to on first filter screen, and the water sample filters out to enter into and detects in the flowmeter.
The invention is further configured to: the upper end of machine case is equipped with the display screen, display screen and flowmeter electric connection, the flowmeter is used for showing velocity of flow and total flow in real time, the machine incasement is equipped with the power, the power is used for supplying power for control system, flowmeter, display screen and force pump.
Through adopting above-mentioned technical scheme, this display screen and flowmeter cooperation realize the demonstration of real-time flow and velocity of flow, have made things convenient for going on of sample work, have reduced intensity of labour, labour saving and time saving, and setting up of power has made things convenient for in open air use, further improvement the convenience of using.
The invention is further configured to: the pressure pump comprises a water inlet part and a water outlet part, wherein the water inlet part is used for filtering impurities of a water sample entering the pressure pump, the water outlet part is used for outputting the filtered water sample to a filter and is used for matching with the water inlet part to realize self-cleaning of the water inlet part, a first water inlet end of the water inlet part is connected with a water inlet, the water inlet part is provided with a first water outlet end and a second water outlet end, the water outlet part comprises a second water inlet end, a third water outlet end and a fourth water outlet end, the first water outlet end is communicated with the second water inlet end, the second water outlet end is communicated with the third water inlet end, the fourth water outlet end is communicated with the filter, and the third water outlet end is communicated with a water outlet.
Through adopting the above technical scheme, this force pump can provide power for the water sample of no power supply, extract the water sample, can keep invariable flow simultaneously, can filter impurity through the portion of intaking, can prevent gravel and sand in the water sample, material such as dust influences the use with filter blocking, further improvement the efficiency of sampling, the stability of flow has also been guaranteed, if take place to block up, holistic velocity of flow can receive the influence, long when increasing, this force pump can carry out the automatically cleaning simultaneously, the availability factor has been guaranteed, can clear away its inside impurity by oneself, need not to demolish.
The invention is further configured to: the water inlet part comprises a water passing inner cavity, a water passing outer cavity, a flow regulator and a second filter screen, the water passing inner cavity is arranged in the water passing outer cavity, one side of the water passing inner cavity is communicated with a first water inlet end, the other end of the water passing inner cavity is communicated with a first water outlet end, one side of the water passing outer cavity is communicated with the first water inlet end, the other end of the water passing outer cavity is communicated with a second water outlet end, the second filter screen is arranged at the first water inlet end, the flow regulator is arranged in the water passing inner cavity, the flow regulator can reciprocate along the water passing inner cavity, the flow regulator is used for regulating the flow, and a first backflow stopping piece is arranged in the second water outlet end.
Through adopting above-mentioned technical scheme, in the water sample was discharged into water portion through water inner chamber and from first play water end in the time of ordinary filtration intaking, when impurity on the filter screen piled up the increase, through the aperture of adjusting flow regulator, can increase the area of intaking for the flow keeps invariable.
The invention is further configured to: the water outlet part comprises a first movable cavity, a second movable cavity, a first driving part, a second driving part and a reset spring, one side of the second water inlet end, which is deviated from the first water outlet end, is communicated with the first movable cavity, one side of the fourth water outlet end is communicated with the first movable cavity, so that a water sample flows out from the fourth water outlet end to a filter through the first movable cavity, a second blocking part and a third blocking part are respectively arranged in the second water inlet end and the fourth water outlet end, the first driving part is arranged in the first movable cavity and can do reciprocating motion to realize suction, one side of the second movable cavity is communicated with the first movable cavity, the other side of the second movable cavity is respectively connected with a third water inlet end and a third water outlet end, two ends of one side of the second movable cavity, which is deviated from the first movable cavity, are respectively provided with a groove, one end of the reset spring is fixedly connected with the groove bottom of the groove, and the other end of the reset spring is fixedly connected with the second driving part, the second driving part is arranged in the second movable cavity, one side of the second driving part seals the opening of the first movable cavity under the action of the reset spring in an initial state, and a fourth blocking part is arranged at the third water outlet end.
By adopting the technical scheme, the first driving part does not touch the second driving part when the first movable cavity performs suction motion, so that the second driving part is in a state of closing the joint of the first movable cavity and the second movable cavity, the first movable cavity is in a suction state at the moment, a water sample in the water passing inner cavity flows into the first movable cavity and then enters the filter, the effect of preventing the water sample from flowing backwards is achieved through the arrangement of the second return-blocking part and the third return-blocking part, the water sample cannot enter from the water passing outer cavity because the second movable cavity is in a vacuum state, when self-cleaning is needed, the first driving part reciprocates when the first movable cavity is closed, the second driving part can be driven to reciprocate, when the second driving part moves, the second movable cavity forms suction, the first water inlet end discharges water into the water passing outer cavity and enters the second movable cavity, because the second water outlet end is provided with the first return-blocking piece, water can only be discharged through the third water outlet end when being pressed, and impurities on the filter screen are discharged together, so that the self-cleaning of the filter screen is realized, and the use efficiency is improved.
The invention is further configured to: the filter is formed by the cooperation of first casing and second casing, the junction of first casing and second casing is equipped with the sealing ring, be detachable sealing connection between first casing and the second casing.
Through adopting above-mentioned technical scheme, the leakproofness of filter has been improved in setting up of this sealing ring, can adopt threaded connection between first casing and the second casing.
A sampling method of a sampler for detecting the content of two insects in water comprises the following steps: s1, installing the filter between the second tube and the third tube, starting the power supply, setting the flow rate of the flowmeter to be 1-2L/min, and setting the total flow to be 100-200L; s2, the control system controls the pressure pump and the flow meter to operate, the first driving piece in the water outlet part reciprocates in the first movable cavity to form suction under the condition that the second driving piece is not interfered, a water sample is sucked into the first pipe body from the water inlet, and the water sample enters the first water inlet end along the first pipe body; s3, filtering impurities such as stones, particles and dust in the water sample to the outside through a second filter screen, enabling the water sample after impurity filtering to enter the first movable cavity from the first water outlet end through the water inner cavity, and extruding the water sample to the filter from the fourth water outlet end under the action of the first driving piece; s4, enabling a water sample to enter from the inlet end of the filter, pressing the water sample into the filter rod through the water inlet hole, seeping out from the water seepage hole under the action of pressure, seeping out water through the first filter screen, filtering the two insects in the filter rod or the first filter screen, and enabling the water to flow out from the outlet end of the filter to the flowmeter to detect the total flow and the flow rate; s5, displaying the total flow and the flow rate in real time by the display screen, and discharging the water flowing out of the flowmeter to the outside of the case through the water outlet; s6, after sampling is finished, removing the filter, and conveying the filter to an elutriation device for elutriation; s7, the control system controls the pressure pump to carry out self-cleaning, the first driving piece reciprocates close to the second driving piece under the condition that the second water inlet end and the fourth water outlet end are closed, the second driving piece starts to suck in the second movable cavity, at the moment, a water source enters the water passing outer cavity through the first water inlet end, and simultaneously impurities of the second filter screen are flushed to the water passing outer cavity and flow into the second movable cavity from the second water outlet end; and S8, discharging the water source together with impurities from the third water outlet end under the action of the second driving piece, and discharging the water source and the impurities to the outside from the water outlet of the case to finish self-cleaning.
By adopting the technical scheme, the outdoor water sample is extracted by the pressure pump, the power is sufficient, the carrying is convenient, the flowmeter is set firstly in the working process, so that the outdoor water sample can be completed by one person in cooperation with a plurality of persons when the outdoor water sample works, the control system stops pumping water automatically after the total flow reaches the standard, the automation degree is higher, the manpower is saved, impurities in the water sample are filtered firstly in the pumping process, the water sample is sent into the filter for collecting two insects after being filtered, the blockage of the filter is prevented, the efficiency is higher by monitoring the flowmeter in real time, the current data can be observed in the display screen, the filter is more intuitive, the filter is detached and sent to the elutriation device for backwashing detection after the sampling is completed, the control system controls the pressure pump to carry out self-cleaning after the filter is detached, the process reduces the manual intervention and has higher efficiency, make the availability factor of second filter screen higher simultaneously, can not make the sedimentary impurity of second filter screen too much lead to, velocity of flow and flow receive the influence.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of the present invention;
FIG. 2 is a schematic view of a filter according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a pressure pump according to an embodiment of the present invention.
Reference numerals: 1. a chassis; 100. a water inlet; 101. a water outlet; 102. a first pipe body; 103. a second tube; 104. a third tube; 105. a flow meter; 106. a display screen; 107. a joint; 108. mounting a box; 109. a power source; 2. a pressure pump; 200. a water inlet part; 201. a first water inlet end; 202. a first water outlet end; 203. a second water outlet end; 204. a water passing inner cavity; 205. a flow regulator; 206. a second filter screen; 207. a water outlet part; 208. a second water inlet end; 209. a third water inlet end; 210. a third water outlet end; 211. a fourth water outlet end; 212. a first movable chamber; 213. a second active cavity; 214. a first driving member; 215. a second driving member; 216. a return spring; 217. a groove; 218. a second resistance element; 219. a third loop back resistance element; 220. a fourth resistance element; 221. a first resistance element; 3. a filter; 300. a filter chamber; 301. a filter element; 3010. an upper fixed seat; 3011. a lower fixed seat; 3012. a filter rod; 3013. a first filter screen; 3014. a water seepage hole; 3015. a water inlet hole; 302. a first seal ring; 303. a card slot; 304. a first housing; 305. a second housing; 306. and (4) a sealing ring.
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.
As shown in fig. 1 to 3, the invention discloses a sampler for detecting the content of two insects in water, which comprises a case 1, the outer side of the case 1 is respectively provided with a water inlet 100 and a water outlet 101, the outlet end of the water inlet 100 is connected with a pressure pump 2 through a first pipe 102, the other end of the pressure pump 2 is connected with a second pipe body 103, the outlet end of the second pipe body 103 is connected with a filter 3 for filtering the two insects in the water sample, the outlet end of the filter 3 is connected with a third pipe body 104, the other end of the third pipe body 104 is connected with a flowmeter 105, the end of the flow meter 105 away from the third pipe 104 is provided with a joint 107, the inlet end of the joint 107 is fixedly connected with the flow meter 105, the outlet end is fixedly connected with the water outlet 101, a control system is arranged in the case 1, and the control system is electrically connected with the pressure pump 2 and the flowmeter 105 respectively. If the water sample has no power source, the water sample can be extracted by the pressure pump 2, the efficiency of extracting the water sample is higher, the flow rate in the extraction process is constant, the water sample is extracted when the pressure pump 2 operates, the water sample enters the pressure pump 2 through the first pipe body 102 and then is discharged into the filter 3 through the second pipe body 103 to filter two insects, redundant water is discharged through the filter 3 and enters the flowmeter 105 through the third pipe body 104, the flowmeter 105 detects the total flow and the flow rate, so that the extraction process of the pressure pump 2 can stably operate and can be monitored in real time, the flowmeter 105 can be conveniently fed back to the control system, the control system can control the working state of the pressure pump 2, the use efficiency is higher, the outdoor sampling process is more convenient and is not limited by a faucet, all devices are arranged in the case 1, can be more convenient carry, the collection of water sample also can be accomplished to alone, has reduced the intensity of labour, and the sampling result is reliable, and is easy and simple to handle, and this force pump 2 not only can provide the power supply and can also filter the impurity in the water sample.
A mounting box 108 is arranged in the case 1, the filter 3 is vertically arranged in the mounting box 108, the inlet end of the filter 3 faces upward, the outlet end of the filter 3 faces downward, and the inlet end of the filter 3 is connected with the outlet end of the second pipe 103. Set up filter 3 perpendicularly vertical setting promptly, made things convenient for the filtration to moisture, prevent the water refluence, can also let the even deposit of water sample make things convenient for the detection in later stage in filter 3 simultaneously.
Be equipped with filter chamber 300 in the filter 3, be equipped with filter core 301 in the filter chamber 300, filter core 301 closely laminates with filter chamber 300 towards one side of filter 3 entry end, one side that filter core 301 was towards the filter 3 exit end is inconsistent with filter chamber 300, be equipped with first sealing washer 302 in the filter chamber 300 entry end, first sealing washer 302 compresses tightly with filter core 301 cooperation and realizes sealedly, filter chamber 300's exit end department is equipped with draw-in groove 303, filter core 301 offsets with draw-in groove 303, and the water sample gets into behind the filter 3 because filter core 301's top closely laminates with filter chamber 300, therefore the water sample can only get into from filter core 301, and filter chamber 300 gets into the discharge after the filtration through filter core 301 again, and filter core 301's upper end and lower extreme all conflict the cooperation, have realized filter core 301's fixed, more stable when using, and the filter effect is better.
The upper end of the case 1 is provided with a display screen 106, the display screen 106 is electrically connected with a flow meter 105, the flow meter 105 is used for displaying the flow rate and the total flow in real time, a power supply 109 is arranged in the case 1, and the power supply 109 is used for supplying power to the control system, the flow meter 105, the display screen 106 and the pressure pump 2. This display screen 106 and flowmeter 105 cooperation realize the demonstration of real-time flow and velocity of flow, have made things convenient for going on of sample work, have reduced intensity of labour, and labour saving and time saving, power 109 set up and has made things convenient for in open air use, further improvement the convenience of using.
The pressure pump 2 comprises a water inlet portion 200 and a water outlet portion 207, wherein the water inlet portion 200 is used for filtering impurities of a water sample entering the pressure pump 2, the water outlet portion 207 is used for outputting the filtered water sample to the filter 3 and is used for matching with the water inlet portion 200 to realize self-cleaning of the water inlet portion 200, a first water inlet end 201 of the water inlet portion 200 is connected with the water inlet 100, the water inlet portion 200 is provided with a first water outlet end 202 and a second water outlet end 203, the water outlet portion 207 comprises a second water inlet end 208, a third water inlet end 209, a third water outlet end 210 and a fourth water outlet end 211, the first water outlet end 202 is communicated with the second water inlet end 208, the second water outlet end 203 is communicated with the third water inlet end 209, the fourth water outlet end 211 is communicated with the filter 3, and the third water outlet end 210 is communicated with the water outlet 101. This force pump 2 can provide power for the water sample of no power supply, extract the water sample, can keep invariable flow simultaneously, can filter impurity through portion 200 of intaking, can prevent gravel and sand in the water sample, material such as dust blocks up filter 3 and influences the use, further improvement the efficiency of sampling, the stability of flow has also been guaranteed, if take place to block up, holistic velocity of flow can receive the influence, long when increasing, this force pump 2 can carry out the automatically cleaning simultaneously, the availability factor is guaranteed, can clear away its inside impurity by oneself, need not to demolish.
The water inlet portion 200 comprises a water passing inner cavity 204, a water passing outer cavity, a flow regulator 205 and a second filter screen 206, wherein the water passing inner cavity 204 is arranged in the water passing outer cavity, one side of the water passing inner cavity 204 is communicated with a first water inlet end 201, the other end of the water passing inner cavity is communicated with a first water outlet end 202, one side of the water passing outer cavity is communicated with the first water inlet end 201, the other end of the water passing outer cavity is communicated with a second water outlet end 203, the second filter screen 206 is arranged at the first water inlet end 201, the flow regulator 205 is arranged in the water passing inner cavity 204, the flow regulator 205 can reciprocate along the water passing inner cavity 204, the flow regulator 205 is used for regulating the flow, and a first backflow blocking piece 221 is arranged in the second water outlet end 203. When water is filtered normally, water sample passes through the water passing cavity 204 and is discharged into the water outlet portion 207 from the first water outlet end 202, and when impurities on the filter screen are accumulated and increased, the water inlet area can be increased by adjusting the opening degree of the flow regulator 205, so that the flow is kept constant.
The water outlet portion 207 comprises a first movable cavity 212, a second movable cavity 213, a first driving member 214, a second driving member 215 and a return spring 216, wherein one side of the second water inlet end 208, which is far away from the first water outlet end 202, is communicated with the first movable cavity 212, one side of the fourth water outlet end 211 is communicated with the first movable cavity 212, so that a water sample flows out from the fourth water outlet end 211 to the filter 3 through the first movable cavity 212, a second blocking member 218 and a third blocking member 219 are respectively arranged in the second water inlet end 208 and the fourth water outlet end 211, the first driving member 214 is arranged in the first movable cavity 212 and can reciprocate to realize suction, one side of the second movable cavity 213 is communicated with the first movable cavity 212, the other side of the second movable cavity 213 is respectively connected with a third water inlet end 209 and a third water outlet end 210, two ends of the second movable cavity 213, which are far away from the first movable cavity 212, are respectively provided with a groove 217, one end of the return spring 216 is fixedly connected with the groove bottom of the groove 217, the other end of the return spring is fixedly connected with the second driving member 215, the second driving member 215 is arranged in the second movable cavity 213, one side of the second driving member 215 closes the opening of the first movable cavity 212 under the action of the return spring 216 in an initial state, and a fourth blocking member 220 is arranged at the third water outlet end 210. The first driving member 214 does not touch the second driving member 215 when doing the pumping motion of the first movable chamber 212, so the second driving member 215 is in a state of closing the connection between the first movable chamber 212 and the second movable chamber 213, at this time, the first movable chamber 212 is in a pumping state, the sampled water in the water inner chamber 204 flows into the first movable chamber 212 and then enters the filter 3, the reverse flow of the sampled water is prevented by the arrangement of the second blocking member 218 and the third blocking member 219, because the second movable chamber 213 is in a vacuum state, the sampled water cannot enter from the water outer chamber, when self-cleaning is needed, the first driving member 214 reciprocates when closing the flow passage of the first movable chamber 212, the second driving member 215 is driven to reciprocate, when the second driving member 215 moves, the second movable chamber 213 forms a suction, the first water inlet end 201 discharges the water into the outer chamber, when the water enters the second movable cavity 213, the second water outlet end 203 is provided with the first blocking member 221, so that the water can be discharged only through the third water outlet end 210 when being pressed, and impurities on the filter screen are discharged together, thereby realizing self-cleaning of the filter screen and improving the use efficiency.
The filter 3 is formed by matching a first shell 304 and a second shell 305, a sealing ring 306 is arranged at the joint of the first shell 304 and the second shell 305, and the first shell 304 and the second shell 305 are in detachable sealing connection. The sealing ring 306 is arranged to improve the sealing performance of the filter 3, and a threaded connection can be adopted between the first housing 304 and the second housing 305.
A sampling method of a sampler for detecting the content of two insects in water comprises the following steps: s1, installing the filter 3 between the second tube 103 and the third tube 104, starting the power supply 109, setting the flow rate of the flowmeter 105 to be 1-2L/min, and setting the total flow to be 100 and 200L; s2, the control system controls the pressure pump 2 and the flow meter 105 to operate, the first driving member 214 in the water outlet part 207 reciprocates in the first movable cavity 212 to form suction without interfering with the second driving member 215, so as to draw the water sample into the first pipe body 102 from the water inlet 100, and the water sample enters the first water inlet end 201 along the first pipe body 102; s3, impurities such as stones, particles and dust in the water sample are filtered outside through the second filter screen 206, the water sample after impurity filtering enters the first movable cavity 212 from the first water outlet end 202 through the water inner cavity 204, and is pressed out to the filter 3 from the fourth water outlet end 211 under the action of the first driving piece 214; s4, enabling a water sample to enter from the inlet end of the filter 3, pressing the water sample into the filter rod 3012 through the water inlet hole 3015, seeping out from the seepage hole 3014 under the action of pressure, seeping out water through the first filter screen 3013, filtering the two insects in the filter rod 3012 or the first filter screen 3013, and enabling the water sample to flow out from the outlet end of the filter 3 to the flowmeter 105 to perform total flow and flow rate detection; s5, displaying the total flow and the flow rate in real time by the display screen 106, and discharging the water flowing out of the flowmeter 105 to the outside of the case 1 through the water outlet 101; s6, after sampling is completed, dismantling the filter 3 and conveying the filter to an elutriation device for elutriation; s7, the control system controls the pressure pump 2 to carry out self-cleaning, the first driving member 214 reciprocates near the second driving member 215 under the condition that the second water inlet end 208 and the fourth water outlet end 211 are closed, at the moment, the second driving member 215 starts to suck in the second movable cavity 213, at the moment, the water source enters the water outlet cavity through the first water inlet end 201, and simultaneously impurities in the second filter screen 206 are washed into the water outlet cavity together and flow into the second movable cavity 213 from the second water outlet end 203; s8, under the action of the second driving element 215, the water source together with the impurities is discharged from the third water outlet end 210, and is discharged to the outside from the water outlet 101 of the cabinet 1, thereby completing self-cleaning.
The outdoor water sample is extracted through the pressure pump 2, the power is sufficient, the carrying is convenient, the flowmeter 105 is set in the working process, therefore, multiple persons are needed to cooperate when the outdoor water sample works, one person can finish the operation, the control system stops pumping water automatically after the total flow reaches the standard, the automation degree is higher, the manpower is saved, impurities in the water sample are filtered firstly in the pumping process, the water sample is sent into the filter 3 for collecting two insects after being filtered, the blockage of the filter 3 is prevented, the efficiency is higher through the real-time monitoring of the flowmeter 105, the current data can be observed in the display screen 106 and is more visual, the filter 3 is detached and sent into the elutriation device for backwashing detection after the sampling is finished, the control system controls the pressure pump 2 to carry out self-cleaning after the filter 3 is detached, the process reduces the manual intervention, the efficiency is higher, and the use efficiency of the second filter screen 206 is higher, the flow rate and the flow rate are not affected by excessive deposition of impurities on the second screen 206.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a sample thief for detecting two worm contents in quality of water, includes quick-witted case (1), the outside of quick-witted case (1) is equipped with water inlet (100) and delivery port (101) respectively, its characterized in that: the water sampling device is characterized in that the outlet end of the water inlet (100) is connected with a pressure pump (2) through a first pipe body (102), the other end of the pressure pump (2) is connected with a second pipe body (103), the outlet end of the second pipe body (103) is connected with a filter (3) for filtering two insects in a water sample, the outlet end of the filter (3) is connected with a third pipe body (104), the other end of the third pipe body (104) is connected with a flowmeter (105), one end, deviating from the third pipe body (104), of the flowmeter (105) is provided with a connector (107), the inlet end of the connector (107) is fixedly connected with the flowmeter (105), the outlet end of the connector is fixedly connected with the water outlet (101), a control system is arranged in the case (1), and the control system is respectively and electrically connected with the pressure pump (2) and the flowmeter (105);
the pressure pump (2) comprises a water inlet part (200) and a water outlet part (207), the water inlet part (200) is used for filtering impurities of a water sample entering the pressure pump (2), the water outlet part (207) is used for outputting the filtered water sample to a filter (3) and matching with the water inlet part (200) to realize self-cleaning of the water inlet part (200), a first water inlet end (201) of the water inlet part (200) is connected with the water inlet (100), the water inlet part (200) is provided with a first water outlet end (202) and a second water outlet end (203), the water outlet part (207) comprises a second water inlet end (208), a third water inlet end (209), a third water outlet end (210) and a fourth water outlet end (211), the first water outlet end (202) is communicated with the second water inlet end (208), the second water outlet end (203) is communicated with the third water inlet end (209), and the fourth water outlet end (211) is communicated with the filter (3), the third water outlet end (210) is communicated with the water outlet (101);
the water inlet part (200) comprises a water passing inner cavity (204), a water passing outer cavity, a flow regulator (205) and a second filter screen (206), the water passing inner cavity (204) is arranged in the water passing outer cavity, one side of the water passing inner cavity (204) is communicated with a first water inlet end (201), the other end of the water passing inner cavity is communicated with a first water outlet end (202), one side of the water passing outer cavity is communicated with the first water inlet end (201), the other end of the water passing outer cavity is communicated with a second water outlet end (203), the second filter screen (206) is arranged at the first water inlet end (201), the flow regulator (205) is arranged in the water passing inner cavity (204), the flow regulator (205) can reciprocate along the water passing inner cavity (204), the flow regulator (205) is used for regulating the flow, and a first backflow blocking piece (221) is arranged in the second water outlet end (203);
the water outlet part (207) comprises a first movable cavity (212), a second movable cavity (213), a first driving part (214), a second driving part (215) and a return spring (216), one side of the second water inlet end (208) departing from the first water outlet end (202) is communicated with the first movable cavity (212), one side of the fourth water outlet end (211) is communicated with the first movable cavity (212) to realize that a water sample flows out of the filter (3) from the fourth water outlet end (211) through the first movable cavity (212), a second backflow resisting part (218) and a third backflow resisting part (219) are respectively arranged in the second water inlet end (208) and the fourth water outlet end (211), the first driving part (214) is arranged in the first movable cavity (212) and can reciprocate to realize suction, one side of the second movable cavity (213) is communicated with the first movable cavity (212), and the other side of the second movable cavity (213) is respectively connected with a third water inlet end (209) and a third water outlet end (210), the two ends of one side, departing from the first movable cavity (212), of the second movable cavity (213) are respectively provided with a groove (217), one end of a return spring (216) is fixedly connected with the groove bottom of the groove (217), the other end of the return spring is fixedly connected with a second driving piece (215), the second driving piece (215) is arranged in the second movable cavity (213), one side of the second driving piece (215) is closed at an opening of the first movable cavity (212) under the action of the return spring (216) in an initial state, and a fourth blocking piece (220) is arranged at a third water outlet end (210).
2. The sampler for detecting the content of the two insects in the water quality as claimed in claim 1, is characterized in that: the improved filter is characterized in that a mounting box (108) is arranged in the case (1), the filter (3) is vertically arranged in the mounting box (108), the inlet end of the filter (3) faces upwards, the outlet end of the filter faces downwards, and the inlet end of the filter (3) is connected with the outlet end of the second pipe body (103).
3. The sampler for detecting the content of the two insects in the water quality as claimed in claim 2, is characterized in that: be equipped with in filter (3) and strain chamber (300), be equipped with filter core (301) in straining chamber (300), filter core (301) are closely laminated with straining chamber (300) towards one side of filter (3) entry end, filter core (301) are inconsistent with straining chamber (300) towards one side of filter (3) exit end, be equipped with first sealing washer (302) in straining chamber (300) entry end, first sealing washer (302) compress tightly with filter core (301) cooperation and realize sealing, the exit end department of straining chamber (300) is equipped with draw-in groove (303), filter core (301) are inconsistent with draw-in groove (303).
4. The sampler for detecting the content of the two insects in the water quality as claimed in claim 3, characterized in that: filter core (301) are including last fixing base (3010), lower fixing base (3011), strain pole (3012) and first filter screen (3013), the one end of straining pole (3012) respectively with last fixing base (3010) and lower fixing base (3011) fixed connection, strain pole (3012) and be the cavity setting, a plurality of infiltration holes (3014) have been seted up on the outer wall of straining pole (3012), first filter screen (3013) winding is in the outside of straining pole (3012) to realize that two worms filter in straining pole (3012) or first filter screen (3013) and moisture ooze by first filter screen (3013), it is equipped with a plurality of inlet openings (3015) to go up fixing base (3010) and be located filter (3) inlet end under.
5. The sampler for detecting the content of the two insects in the water quality as claimed in claim 1, is characterized in that: the upper end of machine case (1) is equipped with display screen (106), display screen (106) and flowmeter (105) electric connection, flowmeter (105) are used for showing flow rate and total flow in real time, be equipped with power (109) in machine case (1), power (109) are used for supplying power for control system, flowmeter (105), display screen (106) and force pump (2).
6. The sampler for detecting the content of the two insects in the water quality as claimed in claim 1, is characterized in that: the filter (3) is formed by matching a first shell (304) and a second shell (305), a sealing ring (306) is arranged at the joint of the first shell (304) and the second shell (305), and the first shell (304) is detachably connected with the second shell (305) in a sealing manner.
7. A sampling method of a sampler for detecting the content of two insects in water quality as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
s1, installing the filter between the second tube and the third tube, starting the power supply, setting the flow rate of the flowmeter to be 1-2L/min, and setting the total flow to be 100-200L;
s2, the control system controls the pressure pump and the flowmeter to operate, the first driving piece in the water outlet part reciprocates in the first movable cavity to form suction under the condition that the second driving piece is not interfered, a water sample is sucked into the first pipe body from the water inlet, and the water sample enters the first water inlet end along the first pipe body;
s3, filtering impurities such as stones, particles and dust in the water sample to the outside through a second filter screen, enabling the water sample after impurity filtering to enter the first movable cavity from the first water outlet end through the water inner cavity, and extruding the water sample to the filter from the fourth water outlet end under the action of the first driving piece;
s4, enabling a water sample to enter from the inlet end of the filter, pressing the water sample into the filter rod through the water inlet hole, seeping out from the seepage hole under the action of pressure, seeping out water through the first filter screen, filtering the two insects in the filter rod or the first filter screen, and enabling the water to flow out of the outlet end of the filter to the flowmeter to perform total flow and flow rate detection;
s5, displaying the total flow and the flow rate in real time by the display screen, and discharging the water flowing out of the flowmeter to the outside of the case through the water outlet;
s6, after sampling is finished, removing the filter, and conveying the filter to an elutriation device for elutriation;
s7, the control system controls the pressure pump to carry out self-cleaning, the first driving piece reciprocates close to the second driving piece under the condition that the second water inlet end and the fourth water outlet end are closed, the second driving piece starts to suck in the second movable cavity, at the moment, a water source enters the water passing outer cavity through the first water inlet end, and simultaneously impurities of the second filter screen are flushed to the water passing outer cavity and flow into the second movable cavity from the second water outlet end;
s8, under the action of the second driving piece, the water source is communicated with impurities to be discharged from the third water outlet end together, and the impurities are discharged to the outside from the water outlet of the case, so that self-cleaning is completed.
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