CN115931451A - Sampling analysis unit suitable for surface water monitoring - Google Patents
Sampling analysis unit suitable for surface water monitoring Download PDFInfo
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- CN115931451A CN115931451A CN202310229661.0A CN202310229661A CN115931451A CN 115931451 A CN115931451 A CN 115931451A CN 202310229661 A CN202310229661 A CN 202310229661A CN 115931451 A CN115931451 A CN 115931451A
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- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The invention relates to a sampling analysis unit suitable for surface water monitoring, belonging to the technical field of water quality monitoring; the device comprises a multi-way selector valve, wherein the multi-way selector valve comprises a public port and a plurality of communication ports, the public port is connected with a first interface of a first three-way valve, a second interface of the first three-way valve is connected with a first interface of a second three-way valve through a sample introduction pipeline, a third interface of the first three-way valve is connected with a second interface of the second three-way valve through a sample discharge pipeline, a third interface of the second three-way valve is sequentially connected with a low-position defoaming sensing assembly, a high-position defoaming sensing assembly and a peristaltic pump, an outlet of the peristaltic pump is connected into an overflow liquid collecting barrel, one of the communication ports of the multi-way selector valve is connected with an inlet of a measuring assembly, an outlet of the measuring assembly is connected into the overflow liquid collecting barrel through a pipeline, and high-temperature and high-pressure valve assemblies are respectively arranged at the front end and the rear end of the measuring assembly; the problems of poor detection precision and long detection period of the conventional low-concentration sample are solved.
Description
Technical Field
The invention belongs to the technical field of water quality monitoring, and particularly relates to a sampling analysis unit suitable for surface water monitoring.
Background
The water quality monitoring is a process for monitoring and measuring the types of pollutants in the water body, the concentrations and the variation trends of various pollutants and evaluating the water quality condition. The monitoring range is very wide, including natural water (rivers, lakes, seas and underground water) which is not polluted and is polluted, various industrial drainage and the like. The main monitoring projects can be divided into two main categories: one is a comprehensive index reflecting the water quality conditions, such as temperature, chroma, turbidity, pH value, conductivity, suspended matters, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand and the like; the other is some toxic substances, such as phenol, cyanogen, copper, arsenic, lead, nickel, chromium, cadmium, mercury, organic pesticides and the like. In order to objectively evaluate the water quality of rivers and oceans, it is sometimes necessary to measure the flow velocity and flow rate in addition to the above-mentioned monitoring items.
When the concentration indexes of elements such as copper, lead, nickel, chromium and the like in water quality are monitored, spectrophotometry is used for detecting the concentration indexes, and the spectrophotometry is a method for qualitatively and quantitatively analyzing a substance to be detected by measuring the absorbance of the substance at a specific wavelength or in a certain wavelength range. The existing monitor for monitoring water quality by spectrophotometry can only select a specific wavelength range and a specific optical path to detect the concentration of a certain specific index in a detection liquid, can not detect various indexes simultaneously, and has low resolution when the spectrophotometry detects a low-concentration sample due to a certain range, so that the precision of the low-concentration sample is poor, and the detection limit is increased.
And current equipment to surface water monitoring can't judge the classification of quality of water in advance, will cause the concentration and the feed liquor proportion of reagent and water sample not looks adaptation like this to lead to the testing result accuracy of quality of water to be relatively poor, just must readjust the concentration and the feed liquor proportion of reagent, thereby lead to whole detection cycle to lengthen, detection efficiency reduces.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a sampling analysis unit suitable for surface water monitoring; the problems of poor detection precision and long detection period of the conventional low-concentration sample are solved.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
The utility model provides a sampling analysis unit suitable for surface water monitoring, including the selection valve that leads to more, the selection valve that leads to more includes a public mouth and a plurality of intercommunication mouth, the public mouth of selection valve that leads to more is connected with the first interface of first three-way valve, the second interface of first three-way valve is connected with the first interface of second three-way valve through the introduction pipeline, the third interface of first three-way valve is connected with the second interface of second three-way valve through the stock layout pipeline, the third interface low level defoaming sensing component's of second three-way valve entry is connected, the export of low level defoaming sensing component is connected with the entry of high level defoaming sensing component, the export of high level defoaming sensing component is connected with the entry of peristaltic pump, the export of peristaltic pump is connected to in the overflow liquid collecting vessel, one of the selection valve that leads to more is connected with the entry of measuring component, the export of measuring component is connected to overflow liquid collecting vessel through the pipeline, be provided with a high temperature high pressure valve subassembly on the pipeline at both ends around the measuring component respectively.
Furthermore, each communication port of the multi-way selector valve is provided with an electromagnetic valve, and whether the common port is communicated with the communication port or not is selected through opening and closing of the electromagnetic valve.
Furthermore, among the remaining communication ports of the multi-way selector valve, a plurality of communication ports are connected with corresponding reagent bottles through pipelines, one communication port is communicated with the waste liquid barrel through a pipeline, and the other communication port is connected with the distilled water bottle through a pipeline.
Further, the low-level defoaming sensing assembly comprises an external tool, a glass tube, a low-level liquid level metering device and a material wave cross detection device; the glass tube is fixed in an external tool; the low-level liquid level metering device is fixed inside an external tool and is used for detecting the liquid level of a water sample in the glass tube; substance wave cross detection device laser light source, spectrum appearance, laser light source and spectrum appearance all are connected with the water sample is inside through optic fibre, and laser light source passes through optic fibre to the inside transmission laser of water sample, and aquatic ion is under the effect of laser, excites the substance wave, is detected by the spectrum appearance through optic fibre, and the information after the spectrum appearance will detect passes through the signal of telecommunication and sends PLC to.
Further, the high-level defoaming sensing assembly comprises an external tool, a glass tube, a high-level liquid level metering device and a material wave cross detection device; the glass tube is fixed in an external tool; the high-level liquid level metering device is fixed inside an external tool and used for detecting the liquid level of a water sample in the glass tube.
Further, the measuring component comprises a fixing frame, a heating pipe is arranged inside the fixing frame, adjusting plates are arranged on two sides of the heating pipe, a light source generator and reflecting lenses are arranged on the adjusting plate on one side, and reflecting lenses and a light source receiver are arranged on the adjusting plate on the other side.
Furthermore, the upper end and the lower end of the fixing frame are respectively provided with a liquid outlet pipe joint and a liquid inlet pipe joint, the lower inlet of the heating pipe is connected with the liquid inlet pipe joint, the upper outlet of the heating pipe is connected with the liquid outlet pipe joint, the outer side of the heating pipe is wound with a heating resistance wire, and the heating pipe is further provided with a temperature sensor.
Furthermore, the two side walls of the fixing frame are symmetrically provided with a square hole respectively, each square hole is internally and correspondingly provided with an adjusting plate, the two adjusting plates are respectively provided with a light source emitter, a second reflector and a fourth reflector in an up-and-down arrangement on the opposite side end surface, wherein the 8230, the first reflector and the third reflector are 8230, the 8230and the light source receiver are arranged on the opposite side end surface, light beams emitted by the light source emitter pass through the heating tube and are sequentially reflected by the first reflector and the second reflector and then received by the light source receiver, and the light source passes through the heating tube after each reflection; each light source emitter is provided with a plurality of light sources which can emit light simultaneously and are received by the light source receiver after being reflected by the first reflector, the second reflector, the third reflector and the fourth reflector (8230; 8230).
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the sampling analysis unit suitable for surface water monitoring, the light sources with various wavelengths are arranged in the light source emitter, elements which cannot interfere with each other in detection reagents are detected at the same time, concentration values of various indexes can be obtained at the same time, adaptability is greatly improved, cost for arranging other monitors is reduced, and monitoring efficiency is improved.
(2) According to the sampling analysis unit suitable for monitoring the surface water, the optical path extending mechanism is arranged on the measuring assembly, so that a light source emitted by the light source emitter can be continuously reflected through a plurality of groups of reflecting lenses, the optical path of the light source is improved, the light source receiver receives the light source with the extended optical path, the detection resolution is improved, and the detection precision of a low-concentration sample is improved.
(3) According to the sampling analysis unit suitable for surface water monitoring, the substance wave principle utilizes different natural frequencies of substances, and can indirectly reflect the water quality types, so that the water quality types can be judged in advance, and an analyzer can select proper reagent concentration and liquid inlet proportion, so that the measurement efficiency is improved, the minimum measurement period is met, and most water quality test sites are adapted.
Drawings
The invention is described in further detail below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the present invention in its entirety;
FIG. 2 is a schematic structural view of a first sampling plate and a second sampling plate;
FIG. 3 is a schematic view of a low level defoaming sensing assembly;
FIG. 4 is a schematic diagram of a material wave cross detection apparatus;
FIG. 5 is a perspective view of the measurement assembly;
FIG. 6 is a front view of the measurement assembly;
FIG. 7 is a front cross-sectional view of the measurement assembly;
wherein 37 is a first sampling plate, 38 is a second sampling plate, 39 is a multi-way selector valve, 40 is a five-way valve, 41 is a first three-way valve, 42 is a second three-way valve, 43 is a low-position defoaming sensing component, 44 is a high-position defoaming sensing component, 45 is a peristaltic pump, 46 is a measuring component, 47 is a high-temperature and high-pressure valve component, 48 is a sample feeding pipeline, 49 is a sample discharging pipeline, 50 is an external tool, 51 is a glass tube, 53 is a fixing frame, 54 is a liquid inlet pipe joint, 55 is a liquid outlet pipe joint, 56 is a heating pipe, 57 is a heating resistance wire, 58 is a temperature sensor, 59 is an adjusting plate, 60 is a light source transmitter, 61 is a first reflecting lens, 62 is a second reflecting lens, and 63 is a light source receiver.
Detailed Description
In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1 to 7, the present invention provides a sampling analysis unit suitable for surface water monitoring, which includes a cabinet, the interior of the cabinet is divided into an upper space and a lower space by a horizontal partition, wherein the lower space is provided with a reagent bottle, a water sample bottle, a waste liquid tank and a distilled water bottle, the upper space is provided with a first sampling plate 37 and a second sampling plate 38, the first sampling plate 37 is fixedly provided with a five-way valve 40, a multi-way selector valve 39, two three-way valves and two defoaming sensing assemblies, and the second sampling plate 38 is fixedly provided with a measuring assembly 46, a transmitting and receiving device, a peristaltic pump 45 and two high temperature and high pressure valve assemblies 47.
The multi-way selector valve 39 includes a common port and a plurality of communication ports, each of which is provided with an electromagnetic valve, and whether the common port is communicated with the communication port is selected by opening and closing the electromagnetic valve. The quintuplet valve 40 comprises a main interface and five branch interfaces, the five branch interfaces are respectively connected with corresponding water sample bottles through pipelines, each pipeline is provided with an electromagnetic valve, five paths of water samples are collected through alternate opening and closing of the electromagnetic valves, the main interface is connected with one of the communication ports of the multi-way selector valve 39 through a pipeline, and the collected water samples enter the multi-way selector valve 39. Among the remaining communication ports of the multi-way selector valve 39, a plurality of communication ports are connected with corresponding reagent bottles through pipelines, one communication port is communicated with a waste liquid barrel through a pipeline, one communication port is connected with a distilled water bottle through a pipeline, one communication port is connected with an inlet of the measuring component 46 through a pipeline, an outlet of the measuring component 46 is connected to an overflow liquid collecting barrel through a pipeline, the pipelines at the front end and the rear end of the measuring component 46 are respectively provided with a high-temperature high-pressure valve component 47, and the two high-temperature high-pressure valve components 47 provide a high-pressure environment for the measuring component 46.
The two three-way valves are respectively a first three-way valve 41 and a second three-way valve 42, the two defoaming sensing assemblies are respectively a low defoaming sensing assembly 43 and a high defoaming sensing assembly 44, and the low defoaming sensing assembly 43 and the high defoaming sensing assembly 44 are connected in series front and back. The first interface of the first three-way valve 41 is connected with the common port of the multi-way selector valve 39 through a pipeline, the second interface of the first three-way valve 41 is connected with the first interface of the second three-way valve 42 through a sample introduction pipeline 48, the third interface of the first three-way valve 41 is connected with the second interface of the second three-way valve 42 through a sample discharge pipeline 49, the third interface of the second three-way valve 42 is connected with the inlet of the low defoaming sensing assembly 43 through a pipeline, the outlet of the defoaming sensing assembly is connected with the inlet of the high defoaming sensing assembly 44 through a pipeline, the outlet of the high defoaming sensing assembly 44 is connected with the inlet of the peristaltic pump 45 through a pipeline, and the outlet of the peristaltic pump 45 is connected into an overflow liquid collecting barrel through a pipeline.
The low defoaming sensing assembly 43 comprises an external tool 50, a glass tube 51, a low liquid level metering device and a material wave cross detection device; the glass tube 51 is fixed in the external tool 50; the low-level liquid level metering device is fixed inside the external tool 50 and is used for detecting the liquid level of a water sample inside the glass tube 51; substance wave cross detection device laser light source, spectrum appearance, laser light source and spectrum appearance all are connected with the water sample is inside through optic fibre, and laser light source passes through optic fibre to the inside transmission laser of water sample, and aquatic ion is under the effect of laser, excites the substance wave, is detected by the spectrum appearance through optic fibre, and the information after the spectrum appearance will detect passes through the signal of telecommunication and sends PLC to. Each substance has own natural frequency, the natural frequency of the amplified substance can be sensed by a frequency measuring device spectrometer under the excitation action of a full-spectrum laser light source, after photoelectric conversion, an electric signal is transmitted to a PLC, the quality of surface water sewage is divided into 5 types, different types correspond to the content of substances with different concentrations, the quality of the water can be judged in advance through the description of the principle, and a proper range is selected to improve the analysis efficiency and the accuracy.
The high-level defoaming sensing assembly 44 comprises an external tool 50, a glass tube 51, a high-level liquid level metering device and a material wave cross detection device; the glass tube 51 is fixed in the external tool 50; the high-level liquid level metering device is fixed inside the external tool 50 and detects the liquid level of a water sample inside the glass tube 51.
The low-level liquid level metering device and the high-level liquid level metering device both comprise an infrared light emitter and an infrared light receiver, when detection liquid passes through the glass tube 51, light is refracted when passing through, received signals can change, and the liquid level detection effect is achieved through PLC signal processing.
The measuring assembly 46 comprises a square fixed frame 53, and a liquid outlet pipe joint 55 and a liquid inlet pipe joint 54 are respectively arranged at the upper end and the lower end of the fixed frame 53. A heating pipe 56 is arranged in the fixed frame 53, the inlet of the lower part of the heating pipe 56 is connected with a liquid inlet pipe joint 54, the outlet of the upper end of the heating pipe 56 is connected with a liquid outlet pipe joint 55, detection liquid is input into the heating pipe 56 through the liquid inlet pipe joint 54, and the detection liquid is output outwards through the liquid outlet pipe joint 55. A heating resistance wire 57 is wound around the outside of the heating pipe 56, the heating resistance wire 57 heats the detection liquid inside the heating pipe 56, and a temperature sensor 58 is further provided on the heating pipe 56, and the temperature of the detection liquid inside the heating pipe 56 is measured by the temperature sensor 58.
Two side walls of the fixing frame 53 are symmetrically provided with a square hole respectively, and two threaded holes are symmetrically arranged on two sides of each square hole. The adjusting plate 59 is correspondingly arranged in each square hole, the two adjusting plates 59 are respectively provided with a light source emitter 60, a second reflector 62, a first reflector 61 and a light source receiver 63 in an up-and-down arrangement on the opposite side end surface, the light source emitter 60 and the second reflector 62 extend into the fixed frame 53 from the square hole on one side, the first reflector 61 and the light source receiver 63 extend into the fixed frame 53 from the square hole on the other side, wherein the light source emitter 60 and the first reflector 61 are horizontally arranged correspondingly, the second reflector 62 and the light source receiver 63 are horizontally arranged correspondingly, a light beam emitted by the light source emitter 60 passes through the heating pipe 56 and then sequentially passes through the first reflector 61 and the second reflector 62 to be received by the light source receiver 63, and the light source passes through the heating pipe 56 after being reflected each time.
Specifically, a vertical slotted hole is respectively formed in the left side and the right side of each adjusting plate 59, two bolts are inserted into each slotted hole, and the bolts penetrate through the slotted holes of the adjusting plates 59 and then are screwed with threaded holes in the side wall of the fixing frame 53, so that the adjusting plates 59 are fixed on the fixing frame 53. The height of the adjusting plate 59 can be adjusted by adjusting the position of the bolt in the oblong hole, so that the height of the light source emitter 60, the second reflector 62, the first reflector 61 and the light source receiver 63 inside the fixing frame 53 is adjusted, the light source emitter 60 and the first reflector 61 are horizontally arranged correspondingly, and the second reflector 62 and the light source receiver 63 are horizontally arranged correspondingly.
Specifically, each light source emitter 60 is provided with a plurality of light sources, which can emit light simultaneously and are all received by the light source receiver 63 after being reflected by the first and second reflective lenses 61 and 62.
Specifically, two adjusting plates 59 may be provided with a plurality of sets of reflective lenses, that is, a light source emitter 60, a second reflective lens 62 and a fourth reflective lens are arranged on one adjusting plate 59, a first reflective lens 61, a third reflective lens and a light source receiver 63 are arranged on the other adjusting plate 59, and the emitted light source is received by the light source receiver 63 after being reflected by the four reflective lenses.
The working principle of the invention is as follows:
during detection, the controller controls one of the branch ports of the quintuplet valve 40 to be communicated with the main port, controls the common port of the multi-way selector valve 39 to be communicated with the communication port of the water sample, controls the first port of the first three-way valve 41 to be communicated with the second port, and controls the first port of the second three-way valve 42 to be communicated with the third port.
Then the peristaltic pump 45 is controlled to rotate in the forward direction, the peristaltic pump 45 generates power, and the water sample sequentially passes through the common port of the multi-way selector valve 39, the first three-way valve 41, the sample introduction pipeline 48 and the second three-way valve 42 and sequentially enters the low defoaming sensing assembly 43.
Inside high-order defoaming sensing element 44, the inside glass pipe 51 of low level defoaming sensing element 43 and high-order defoaming sensing element 44 is because the internal diameter changes for get into its inside detection liquid because the pipe diameter sudden change and eliminate the bubble, reach the purpose of defoaming, the bubble is eliminated and is guaranteed to detect that liquid evenly reachs the reduction of glass pipe 51 middle part position and cause the interference to follow-up detection.
The multistage material wave alternately correlation detection device that low level defoaming sensing assembly 43 carried on carries out water sample signal detection, clears up the influence that contains in the water back wave band detected and transmits to the signal board and carries out signal processing, and equipment automatic selection is predetermined process flow and is analyzed, and the analysis result is rectified through the water sample component, guarantees that the testing result is more accurate true. When a water sample enters the low-position defoaming sensing assembly 43 from the bottom, the characteristic components of the water body are judged by utilizing the absorption principle of different substances to light with specific wavelength, and after the front-end processing information of the circuit board is detected, the water sample information is transmitted to the PLC for data correction processing after analysis. Therefore, the specific type of the water sample entering the defoaming sensing assembly at present can be known, and the corresponding reagent concentration and liquid inlet proportion are selected.
The liquid level value that the sampling analysis unit set for is divided into high liquid level and low liquid level two kinds, and low liquid level detects the affirmation through the inside low level liquid level metering device of low level defoaming sensing subassembly 43, and high liquid level detects the affirmation through the inside high level liquid level metering device of high level defoaming sensing subassembly 44.
After the classification of water sample detected, when the water sample of high liquid level of needs, through peristaltic pump 45 forward rotation with the water pump in proper order pump into low level defoaming sensing subassembly 43 and high-order defoaming sensing subassembly 44 inside, the inside glass pipe 51 of low level defoaming sensing subassembly 43 and high-order defoaming sensing subassembly 44 is because the internal diameter changes, make and get into its inside detection liquid because the pipe diameter sudden change and eliminate the bubble, reach the purpose of defoaming, the bubble is eliminated and is guaranteed that detection liquid evenly reachs the reduction of glass pipe 51 middle part position and causes the interference to follow-up detection. When the high-level value is reached, the high-level liquid level metering device detects a signal in place, the common port of the multi-way selector valve 39 is controlled to be connected with the communication port of the reagent, the peristaltic pump 45 rotates to pump the reagent into the low-level defoaming sensing assembly 43 and the high-level defoaming sensing assembly 44, and the water sample and the reagent are mixed to form detection liquid.
When the water sample of low liquid level of needs, through peristaltic pump 45 forward rotation with the water pump go into low level defoaming sensing subassembly 43 in, the inside glass pipe 51 of low level defoaming sensing subassembly 43 is because the internal diameter changes for get into its inside detection liquid because the pipe diameter sudden change and eliminate the bubble, reach the purpose of defoaming, the bubble is eliminated and is guaranteed to detect that liquid evenly reachs glass pipe 51 middle part position and reduce and cause the interference to follow-up detection. When the low liquid level value is reached, the low liquid level metering device detects a signal in place, the common port of the multi-way selector valve 39 is controlled to be connected with the communication port of the reagent, the peristaltic pump 45 rotates to pump the reagent into the low defoaming sensing assembly 43, and the water sample and the reagent are mixed to form detection liquid.
After the reagent and the water sample are mixed, a common port of the multi-way selector valve 39 is controlled to be communicated with a communication port corresponding to the measuring component 46, the peristaltic pump 45 starts to rotate reversely, detection liquid in the defoaming sensing component is pumped into the measuring component 46 through the multi-way selector valve 39, the detection liquid carries out high-temperature reaction in the heating pipe 56, the detection liquid is irradiated through the light source emitter 60 and received through the light source receiver 63, concentration values of specified parameters in the detection liquid are detected, and detected information is transmitted outwards through the transmitting and receiving device.
The liquid level value that the sampling analysis unit set for is divided into high liquid level and low liquid level two kinds, and low liquid level detects the affirmation through the inside low level liquid level metering device of low level defoaming sensing subassembly 43, and high liquid level detects the affirmation through the inside high level liquid level metering device of high level defoaming sensing subassembly 44. Through mutually supporting of first three-way valve 41 and second three-way valve 42 can realize that the detection liquid of lower liquid level is advanced kind, specifically be when low level liquid level metering device detects the low liquid level, also there is detection liquid to exist in the appearance pipeline 48, switch on first interface and the third interface of first three-way valve 41 this moment, switch on second interface and the third interface of second three-way valve 42 mutually, peristaltic pump 45 antiport, discharge in will detecting liquid low level defoaming sensing component 43, only remain in the appearance pipeline 48 of advancing this moment and still have detection liquid. When the detection liquid is completely discharged, the first interface of the second three-way valve 42 is communicated with the third interface again, the first interface of the first three-way valve 41 is communicated with the third interface, and the peristaltic pump 45 rotates in the forward direction, so that the detection liquid remaining in the sample injection pipeline 48 is pumped into the low defoaming sensing assembly 43 again, and the sample injection of the detection liquid at a lower liquid level is realized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a sampling analysis unit suitable for surface water monitoring which characterized in that: the device comprises a multi-way selector valve (39), the multi-way selector valve (39) comprises a common port and a plurality of communication ports, the common port of the multi-way selector valve (39) is connected with a first interface of a first three-way valve (41), a second interface of the first three-way valve (41) is connected with a first interface of a second three-way valve (42) through a sample introduction pipeline (48), a third interface of the first three-way valve (41) is connected with a second interface of the second three-way valve (42) through a sample discharge pipeline (49), a third interface of the second three-way valve (42) is connected with an inlet of a low defoaming sensing assembly (43), an outlet of the low defoaming sensing assembly (43) is connected with an inlet of a high defoaming sensing assembly (44), an outlet of the high defoaming sensing assembly (44) is connected with an inlet of a peristaltic pump (45), an outlet of the peristaltic pump (45) is connected into an overflow liquid collecting barrel, one of the communication ports of the multi-way selector valve (39) is connected with an inlet of a measuring assembly (46), an outlet of the measuring assembly (46) is connected to the front and rear overflow liquid collecting barrel through high-pressure pipelines, and high-pressure pipelines (47) are respectively arranged on the front and the rear ends of the overflow liquid collecting barrel.
2. A sampling analysis unit adapted for surface water monitoring according to claim 1, wherein: and each communication port of the multi-way selection valve (39) is provided with an electromagnetic valve, and whether the common port is communicated with the communication port or not is selected by opening and closing the electromagnetic valve.
3. A sampling analysis unit adapted for surface water monitoring according to claim 1, wherein: the multi-way water sample collection device is characterized by further comprising a five-way valve (40), wherein the five-way valve (40) comprises a main interface and five branch interfaces, the five branch interfaces are respectively connected with corresponding water sample bottles through pipelines, each pipeline is provided with an electromagnetic valve, five paths of water samples are collected through alternate opening and closing of the electromagnetic valves, and the main interface is connected with one of the communicating ports of the multi-way selector valve (39) through the pipelines.
4. A sampling analysis unit adapted for surface water monitoring according to claim 3, characterized in that: among the remaining communication ports of the multi-way selector valve (39), a plurality of communication ports are connected with corresponding reagent bottles through pipelines, one communication port is communicated with the waste liquid barrel through a pipeline, and the other communication port is connected with the distilled water bottle through a pipeline.
5. A sampling analysis unit adapted for surface water monitoring according to claim 1, wherein: the low-position defoaming sensing assembly (43) comprises an external tool (50), a glass tube (51), a low-position liquid level metering device and a material wave cross detection device; the glass tube (51) is fixed in an external tool (50); the low-level liquid level metering device is fixed inside an external tool (50) and is used for detecting the liquid level of a water sample inside the glass tube (51); substance wave cross detection device laser light source, spectrum appearance, laser light source and spectrum appearance all are connected with the water sample is inside through optic fibre, and laser light source passes through optic fibre to the inside transmission laser of water sample, and aquatic ion is under the effect of laser, excites the substance wave, is detected by the spectrum appearance through optic fibre, and the information after the spectrum appearance will detect passes through the signal of telecommunication and sends PLC to.
6. A sampling analysis unit adapted for surface water monitoring according to claim 1, wherein: the high-level defoaming sensing assembly (44) comprises an external tool (50), a glass tube (51), a high-level liquid level metering device and a material wave cross detection device; the glass tube (51) is fixed in an external tool (50); the high-level liquid level metering device is fixed inside an external tool (50) and used for detecting the liquid level of a water sample inside the glass tube (51).
7. A sampling analysis unit adapted for surface water monitoring according to claim 1, wherein: the measuring assembly (46) comprises a fixing frame (53), a heating pipe (56) is arranged in the fixing frame (53), adjusting plates (59) are arranged on two sides of the heating pipe (56), a light source generator and a reflecting lens are arranged on the adjusting plate (59) on one side, and a reflecting lens and a light source receiver (63) are arranged on the adjusting plate (59) on the other side.
8. A sampling analysis unit adapted for surface water monitoring according to claim 7, characterized in that: the upper end and the lower end of the fixing frame (53) are respectively provided with a liquid outlet pipe joint (55) and a liquid inlet pipe joint (54), the lower inlet of the heating pipe (56) is connected with the liquid inlet pipe joint (54), the upper outlet of the heating pipe (56) is connected with the liquid outlet pipe joint (55), the outer side of the heating pipe (56) is wound with a heating resistance wire (57), and the heating pipe (56) is also provided with a temperature sensor (58).
9. A sampling analysis unit adapted for surface water monitoring according to claim 8, wherein: the light source fixing frame comprises a fixing frame (53), wherein the side walls of two sides of the fixing frame (53) are symmetrically provided with square holes respectively, each square hole is internally and correspondingly provided with an adjusting plate (59), the end surfaces of two opposite sides of each adjusting plate (59) are respectively and vertically provided with a light source emitter (60), a second reflector (62) and a fourth reflector (8230), a first reflector (61) and a third reflector (8230), a light source receiver (63), light beams emitted by the light source emitter (60) pass through a heating pipe (56), then are sequentially reflected by the first reflector (61) and the second reflector (62) and then are received by the light source receiver (63), and the light source passes through the heating pipe (56) after each reflection; each light source emitter (60) is provided with a plurality of light sources which can emit light simultaneously and are received by the light source receiver (63) after being reflected by the first reflecting lens (61), the second reflecting lens (62), the third reflecting lens and the fourth reflecting lens (8230; 8230).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310229661.0A CN115931451B (en) | 2023-03-10 | 2023-03-10 | Sampling analysis unit suitable for surface water monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310229661.0A CN115931451B (en) | 2023-03-10 | 2023-03-10 | Sampling analysis unit suitable for surface water monitoring |
Publications (2)
| Publication Number | Publication Date |
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| CN115931451A true CN115931451A (en) | 2023-04-07 |
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