CN218445148U - Waterway control system for water quality analysis - Google Patents
Waterway control system for water quality analysis Download PDFInfo
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- CN218445148U CN218445148U CN202220356079.1U CN202220356079U CN218445148U CN 218445148 U CN218445148 U CN 218445148U CN 202220356079 U CN202220356079 U CN 202220356079U CN 218445148 U CN218445148 U CN 218445148U
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Abstract
The utility model discloses a water path control system for water quality analysis, which comprises a peristaltic pump, a metering device, a colorimetric device, a solenoid valve, a multi-channel discharge valve and a controller, wherein one end of the peristaltic pump is connected with a gas joint of the metering device, and the peristaltic pump, the solenoid valve, the multi-channel discharge valve, the metering device and the colorimetric device are respectively connected with the controller correspondingly; the electromagnetic valve is a three-way electromagnetic valve, a public joint of the electromagnetic valve is connected with a liquid joint of the metering device, a normally open joint of the electromagnetic valve is connected with a public joint of the multi-channel discharge valve, and a normally closed joint of the electromagnetic valve is connected with a liquid inlet joint of the colorimetric device. The utility model discloses an adopt three solenoid valve to realize the circulation control of water sample between multichannel row valve and metering device, between metering device and the color comparison device, reduce solenoid valve quantity under the prerequisite of guaranteeing the normal circulation control of water sample, reduced entire system's volume and cost.
Description
Technical Field
The utility model relates to a water quality analysis equipment especially relates to a water route control system for water quality analysis.
Background
The water quality analysis equipment plays a very important role in environmental monitoring, and the water path control system is an important component of the water quality analysis equipment, and the quality of the water path control system plays a decisive role in the accuracy of water quality analysis.
A waterway control system for water quality analysis mainly includes peristaltic pump, metering device, color comparison device, solenoid valve, multichannel calandria and controller, and wherein, the peristaltic pump is used for pumping certain water sample into metering device, and specific which way water sample then passes through multichannel calandria control, and metering device is used for the water sample ration, and the water sample after the ration gets into the color comparison device behind the solenoid valve, and the color comparison device is used for carrying out the color comparison analysis to the water sample to obtain water quality analysis result.
The traditional waterway control system for water quality analysis has the following defects:
the electromagnetic valves are respectively connected between the multi-channel discharge valve and the metering device and between the metering device and the colorimetric device, so that the number of the electromagnetic valves is increased, the volume and the cost of the whole system are increased, and the structure is not simplified enough.
In addition, in the traditional metering device and the colorimetric device, the upper end and the lower end of the quartz tube in the traditional metering device and the colorimetric device are directly butted with the joint, the sealing effect of the joint is poor, liquid leakage is easy to occur, and the liquid is remained on the outer wall or the shell of the quartz tube after leakage, so that the detection result of metering detection or color reaction can be influenced, and the accuracy of the result of metering detection or colorimetric analysis is reduced; meanwhile, the shell of the traditional metering device and the colorimetric device is of an integrated integral structure, so that the function of observing internal reaction is difficult to realize according to application requirements, local damaged parts are inconvenient to replace, the whole device or a large part may need to be replaced after the local damage, and the maintenance cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a waterway control system for water quality analysis that the structure is more retrencied for solving above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a waterway control system for water quality analysis comprises a peristaltic pump, a metering device, a colorimetric device, an electromagnetic valve, a multi-channel exhaust valve and a controller, wherein one end of the peristaltic pump is connected with a gas connector of the metering device, the other end of the peristaltic pump is connected with an air bottle, a multi-channel inlet connector of the multi-channel exhaust valve is respectively communicated with a water sample, an exhaust connector of the colorimetric device is connected with an overflow bottle, and a control input end of the peristaltic pump, a control input end of the electromagnetic valve, a control input end of the multi-channel exhaust valve, a signal output end of the metering device and a signal output end of the colorimetric device are respectively and correspondingly connected with the controller; the solenoid valve is one and is three solenoid valve, the common joint of solenoid valve with metering device's liquid articulate, the normally open joint of solenoid valve with a common joint of multichannel row valve is connected, the normally closed joint of solenoid valve with the liquid inlet joint of color comparison device connects.
Preferably, in order to facilitate installation and application, the peristaltic pump, the metering device, the colorimetric device, the electromagnetic valve and the multi-channel discharge valve are all installed on a movable panel, and the movable panel is installed on a fixed panel through a hinge.
As preferred, for preventing that the liquid in the quartz capsule of metering device and color comparison device from spilling and be convenient for processing and install and remove the quartz capsule, the metering device with the color comparison device all includes shell, quartz capsule, connecting pipe, joint and light signal spare mounting tube, and is vertical the quartz capsule is arranged in the long cubic the inner chamber of shell, the upper and lower both ends of quartz capsule are equipped with vertical spliced pole respectively, the spliced pole is equipped with the external screw thread on vertical central through-hole and the outer wall, and is vertical be equipped with the internal thread on the pore wall of the upper segment through-hole of connecting pipe and the pore wall of hypomere through-hole respectively, the joint is equipped with vertical central through-hole, the joint is including the big footpath section of joint, joint changeover portion and the joint path section that connects in proper order, the external diameter that connects big footpath section is greater than connect the external diameter of path section, the surface that connects the changeover portion is conical surface or sphere, be equipped with the external screw thread on the outer wall that connects the path section, two the spliced pole is arranged in respectively two the connecting pipe and pass through threaded connection, two the joint path section is equipped with the light signal spare mounting tube is equipped with two the light signal spare respectively the light signal spare mounting tube is installed on two the shell is relative the hole respectively. The difference between the metering device and the colorimetric device lies in that the connected light emitter and light receiver are different, the metering device adopts an infrared light emitter and an infrared light receiver, the colorimetric device adopts a light emitter for colorimetric detection and a light receiver for colorimetric detection for detection reaction, and the type of light for specific colorimetric detection is determined according to the detection requirement.
Preferably, in order to facilitate processing and assembly and disassembly of the housing and the optical signal element mounting tube, the housing includes a rectangular housing body with an upper portion and one side open, a cover plate is mounted on the upper portion of the housing body through a screw, the cover plate is a top plate of the housing, a detachable panel is mounted on a side opening of the housing body through a screw, the optical signal element mounting tube includes a mounting tube large-diameter section and a mounting tube small-diameter section, an outer diameter of the mounting tube large-diameter section is larger than an outer diameter of the mounting tube small-diameter section, an annular boss is arranged between the mounting tube large-diameter section and the mounting tube small-diameter section, the outer diameter of the annular boss is larger than the outer diameter of the mounting tube large-diameter section, and a convex ring with a larger outer diameter is arranged at one end of the transverse sleeve, two the sleeve pipe passes two respectively the light signal spare mounting hole just the bulge loop is arranged in this external and with the outer wall in close contact with of shell body, two the installation pipe minor diameter section of light signal spare installation pipe inserts two respectively in the sheathed tube central through hole, two the bulge loop is respectively with two annular boss in close contact with, and the one end that the mounting disc was equipped with horizontal central through hole and this central through hole's pore wall is equipped with the bigger counter bore in aperture, two the mounting disc respectively through the screw with shell body's corresponding lateral wall is connected, two the installation pipe major diameter section of light signal spare installation pipe passes two respectively the central through hole of mounting disc, the mutual contact the bulge loop with the annular boss is arranged in and is corresponded the counter bore of mounting disc.
Preferably, to facilitate viewing of the metering process and to avoid the effects of external light on the colorimetric analysis, the removable panel of the metering device is a transparent panel and the removable panel of the colorimetric device is an opaque panel.
Preferably, in order to reduce the flow rate of liquid flowing through the joint to further improve the leakage-proof effect, the aperture of the central through hole of the connecting column is 2mm, a transverse partition plate is arranged between the upper section through hole and the lower section through hole of the connecting tube, a vertical through hole with the aperture of 2mm is arranged at the central position of the partition plate, and the aperture of the central through hole of the small-diameter section of the joint is equal to or larger than 2mm.
The beneficial effects of the utility model reside in that:
the utility model realizes the circulation control of the water sample between the multi-channel discharge valve and the metering device and between the metering device and the colorimetric device by adopting the three-way electromagnetic valve, reduces the number of the electromagnetic valves on the premise of ensuring the normal circulation control of the water sample, and reduces the volume and the cost of the whole system; connecting columns are designed at two ends of a quartz tube of the metering device and the colorimetric device, the connecting columns are respectively in threaded connection with the connecting tube and the connecting tube, the connecting tube is in threaded connection with the joint, the sealing effect of the joint is good, the connecting tube is better sealed by using the joint transition section, a water sample cannot leak from the joint between the quartz tube and the joint, the influence of leaked liquid on the detection result of metering detection or color reaction is avoided, the accuracy of the metering detection or colorimetric analysis result is improved, and the quartz tube is convenient to assemble and disassemble; the shell is designed into a detachable structure, so that the function of observing internal reaction can be realized according to application requirements, the maintenance efficiency is improved, the mounting structure of the optical signal element mounting pipe is designed into a structure which is formed by matching a sleeve pipe and a mounting disc, the stable mounting can be realized, the replacement of local damaged parts can be facilitated, and the maintenance cost is reduced; the aperture of the central through hole of the connecting column and the aperture of the through hole of the partition plate of the connecting pipe are designed to be 2mm, so that the contact area of an internal water sample with the connecting column and the connecting pipe is reduced, and the possibility of liquid leakage is further reduced.
Drawings
Fig. 1 is a schematic view of a water path control system for water quality analysis according to the present invention;
fig. 2 is a schematic perspective view of a metering device or a colorimetric device of a waterway control system for water quality analysis according to the present invention before assembly, in which a connection pipe, a connector, an optical signal member installation pipe, a sleeve pipe and an installation plate are omitted;
fig. 3 is a schematic view of the assembled three-dimensional structure of the metering device or the colorimetric device of the water path control system for water quality analysis, and the proportion is greater than fig. 2.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-3, the waterway control system for water quality analysis of the present invention includes a peristaltic pump 7, a metering device 4, a colorimetric device 13, a solenoid valve 8, a multi-channel valve 11 and a controller (not shown in the figure), one end of the peristaltic pump 7 is connected to a gas connector of the metering device 4, the other end of the peristaltic pump 7 is connected to an air bottle (not shown in the figure), a multi-channel inlet connector 5 of the multi-channel valve 11 is respectively communicated to a water sample (stored in a water sample container, not shown in the figure), a liquid discharge connector of the colorimetric device 13 is connected to an overflow bottle (not shown in the figure), a control input end of the peristaltic pump 7, a control input end of the solenoid valve 8, a control input end of the multi-channel valve 11, a signal output end of the metering device 4 and a signal output end of the colorimetric device 13 are respectively connected to the controller; the electromagnetic valve 8 is a three-way electromagnetic valve, the common joint 6 of the electromagnetic valve 8 is connected with the liquid joint of the metering device 4, the normally open joint 9 of the electromagnetic valve 8 is connected with a common joint 12 of the multi-channel discharge valve 11, and the normally closed joint 10 of the electromagnetic valve 8 is connected with the liquid inlet joint of the colorimetric device 13.
As shown in fig. 1-3, the utility model discloses still disclose following multiple more optimized concrete structure:
in order to facilitate installation and application, the peristaltic pump 7, the metering device 4, the colorimetric device 13, the electromagnetic valve 8 and the multi-channel discharge valve 11 are all installed on the movable panel 3, and the movable panel 3 is installed on the fixed panel 1 through the hinge 2.
In order to prevent the liquid (i.e. water sample) in the quartz tube 35 of the metering device 4 and the colorimetric device 13 from leaking and facilitate the processing and assembly and disassembly of the quartz tube 35, the metering device 4 and the colorimetric device 13 both comprise a housing, a quartz tube 35, a connecting tube 29, a connector 25 and an optical signal member installation tube 17, the vertical quartz tube 35 is arranged in the inner cavity of the housing in a cuboid shape, vertical connecting posts 33 are respectively arranged at the upper end and the lower end of the quartz tube 35, the connecting posts 33 are provided with vertical central through holes 32, external threads are arranged on the outer wall of the connecting posts 33, internal threads are respectively arranged on the hole wall of an upper section through hole 28 and the hole wall of a lower section through hole 31 of the vertical connecting tube 29, the connector 25 is provided with a vertical central through hole, the connector 25 comprises a connector large-diameter section (the same as the marking position of the connector 25 in the figure, so that the connector is not marked separately), a connector transition section 26 and a connector small-diameter section 27 which are connected in sequence, the outer diameter of the joint large-diameter section is larger than that of the joint small-diameter section 27, the outer surface of the joint transition section 26 is a conical surface or a spherical surface, the outer wall of the joint small-diameter section 27 is provided with external threads, the two connecting columns 33 are respectively arranged in the two connecting pipes 29 and are connected through the threads, the joint small-diameter sections 27 of the two joints 25 are respectively arranged in the two connecting pipes 29 and are connected through the threads, the top plate of the shell is provided with a vertical upper joint mounting hole 24, the bottom plate of the shell is provided with a vertical lower joint mounting hole 38, two joints 25 respectively penetrate through the upper joint mounting hole 24 and the lower joint mounting hole 38, the large-diameter section of each joint is arranged outside the shell, two opposite side plates of the shell are respectively provided with a transverse optical signal piece mounting hole 36, and the two transverse optical signal piece mounting pipes 17 are respectively mounted in the two optical signal piece mounting holes 36.
In order to facilitate the processing and assembly and disassembly of the housing and the optical signal piece mounting tube 17, the housing comprises a cuboid housing body 34 with an upper part and one side open, a cover plate 23 is mounted on the upper opening of the housing body 34 through a screw, the cover plate 23 is a top plate of the housing, a detachable panel 37 is mounted on the side opening of the housing body 34 through a screw, the optical signal piece mounting tube 17 comprises a mounting tube large-diameter section (which is the same as the marked position of the optical signal piece mounting tube 17 in the figure and is not marked independently) and a mounting tube small-diameter section 19, the outer diameter of the mounting tube large-diameter section is larger than that of the mounting tube small-diameter section 19, an annular boss 18 is arranged between the mounting tube large-diameter section and the mounting tube small-diameter section 19, the outer diameter of the annular boss 18 is larger than that of the mounting tube large-diameter section, a convex ring 20 with a larger outer diameter is arranged at one end of a transverse sleeve 21, the two sleeves 21 respectively penetrate through two optical signal piece mounting holes 36, the convex rings 20 are arranged outside the housing body 34 and are in close contact with the outer wall of the housing body 34, two annular bosses 14 are respectively inserted into the two sleeve small-diameter sections 19, two annular bosses of the central through holes of the two sleeves 21, two annular bosses are respectively, two through holes 14, two annular bosses 14 are arranged in close contact with the through holes 14, and 14, the central through holes 14 of the mounting tubes 14, and 14, the two annular bosses 14 are arranged in close contact with the central through holes 14, and 14 of the central through holes 14, and 14 of the two annular bosses 14.
To facilitate viewing of the metering process and to avoid the effects of external light on the colorimetric analysis, the removable panel 37 of the metering device 4 is a transparent panel and the removable panel 37 of the colorimetric device 13 is an opaque panel.
In order to reduce the flow rate of liquid flowing through the interface to further improve the leakage-proof effect, the aperture of the central through hole 32 of the connecting column 33 is 2mm, a transverse partition plate is arranged between the upper section through hole 28 and the lower section through hole 31 of the connecting pipe 29, a vertical through hole 30 with the aperture of 2mm is arranged in the center of the partition plate, and the aperture of the central through hole of the small-diameter section 27 of the joint is equal to or larger than 2mm.
Description of the drawings: the signal output end of the metering device 4 is the signal output end of an infrared light receiver not shown in the figure; the signal output terminal of the colorimetric device 13 is a signal output terminal of an optical receiver for colorimetric detection not shown in the figure; the gas and liquid connections of the metering device 4 are respectively the upper and lower connections 25 in fig. 2 and 3; the liquid discharging joint and the liquid inlet joint of the colorimetric device 13 are joints 25 at the upper part and the lower part in the figures 2 and 3 respectively; since the metering device 4 and the colorimetric device 13 have the same structure except that the optical signal transmitter and the optical signal receiver are different from each other, the joints thereof are marked with 25, the connection pipes thereof are marked with 29, the quartz tubes thereof are marked with 35, the detachable panels thereof are marked with 37, the optical signal member mounting pipes thereof are marked with 17, and the other corresponding parts are the same.
As shown in fig. 1 to 3, in use, an infrared light emitter (not shown) is mounted on one of the light signaling member mounting tubes 17 of the measuring device 4, an infrared light receiver (not shown) is mounted on the other light signaling member mounting tube 17 of the measuring device 4, a colorimetric detection light emitter (not shown) is mounted on one of the light signaling member mounting tubes 17 of the colorimetric device 13, and a colorimetric detection light receiver (not shown) is mounted on the other light signaling member mounting tube 17 of the colorimetric device 13; controlling each electronic component by a controller; one path of the multi-channel exhaust valve 11 is opened, the peristaltic pump 7 is controlled to rotate forwards, air in the internal path of the metering device 4 is evacuated to form negative pressure, so that a corresponding water sample enters the quartz tube 35 in the metering device 4 through the multi-channel exhaust valve 11 and the electromagnetic valve 8, after an infrared light receiver of the metering device 4 detects that the water sample reaches a specified liquid level, the controller controls the peristaltic pump 7 to stop running, the electromagnetic valve 8 is powered on to act, the common joint 6 of the electromagnetic valve is disconnected from the normally open joint 9 and communicated with the normally closed joint 10, then the peristaltic pump 7 is controlled to rotate backwards, air is sucked to squeeze the water sample in the metering device 4, the water sample in the metering device 4 enters the quartz tube 35 in the colorimetric device 13 through the electromagnetic valve 8, after the water sample completely enters the colorimetric device 13, the peristaltic pump 7 is controlled to stop running, meanwhile, the electromagnetic valve 8 is powered off and reset, a colorimetric flow is completed, a detection signal is sent to the controller by a detection light receiver of the colorimetric device 13, a water sample detection result is obtained, and a water sample detection flow and a colorimetric detection flow is completed. The specified water sample can be sequentially extracted into the colorimetric device 13 for colorimetric detection by the circulation so as to achieve the purpose of water quality analysis.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.
Claims (6)
1. A waterway control system for water quality analysis comprises a peristaltic pump, a metering device, a colorimetric device, an electromagnetic valve, a multi-channel exhaust valve and a controller, wherein one end of the peristaltic pump is connected with a gas connector of the metering device, the other end of the peristaltic pump is connected with an air bottle, a multi-channel inlet connector of the multi-channel exhaust valve is respectively communicated with a water sample, an exhaust connector of the colorimetric device is connected with an overflow bottle, and a control input end of the peristaltic pump, a control input end of the electromagnetic valve, a control input end of the multi-channel exhaust valve, a signal output end of the metering device and a signal output end of the colorimetric device are respectively and correspondingly connected with the controller; the method is characterized in that: the solenoid valve is one and is three solenoid valve, the common joint of solenoid valve with metering device's liquid articulate, the normally open joint of solenoid valve with a common joint of multichannel row valve is connected, the normally closed joint of solenoid valve with the liquid inlet joint of color comparison device connects.
2. The waterway control system for water quality analysis of claim 1, wherein: the peristaltic pump, metering device the color comparison device the solenoid valve with the multichannel row valve all installs on movable panel, movable panel passes through the hinge and installs on fixed panel.
3. A waterway control system for water quality analysis according to claim 1 or 2, wherein: metering device with the color comparison device all includes shell, quartz capsule, connecting pipe, joint and light signal spare mounting tube, and is vertical the quartz capsule is arranged in long cubic the intracavity of shell, the upper and lower both ends of quartz capsule are equipped with vertical spliced pole respectively, the spliced pole is equipped with vertical central through-hole and is equipped with the external screw thread on the outer wall, and is vertical be equipped with the internal thread on the pore wall of the upper segment through-hole of connecting pipe and the pore wall of hypomere through-hole respectively, the joint is equipped with vertical central through-hole, connect including the joint major diameter section that connects gradually, connect changeover portion and connect the minor diameter section, the external diameter that connects the major diameter section is greater than connect the external diameter of minor diameter section, the surface that connects the changeover portion is the conical surface or sphere, be equipped with the external screw thread on the outer wall that connects the minor diameter section two the spliced pole is arranged in respectively and pass through threaded connection, two the joint minor diameter section that connects arranges in respectively in the connecting pipe and pass through threaded connection, the roof and the bottom plate of shell are equipped with vertical joint mounting hole respectively, two connect the light signal spare mounting hole respectively, two horizontal signal spare mounting holes are installed respectively.
4. A waterway control system for water quality analysis, according to claim 3, wherein: the casing includes upper portion and the long cubic shell body of one side open-ended wherein, the upper portion opening of shell body has the apron through the screw mounting, the apron does the roof of casing, the side opening of shell body has the detachable panel through the screw mounting, the optical signal spare mounting tube includes mounting tube major diameter section and mounting tube minor diameter section, the external diameter of mounting tube major diameter section is greater than the external diameter of mounting tube minor diameter section, mounting tube major diameter section with be equipped with annular boss between the mounting tube minor diameter section, the external diameter of annular boss is greater than the external diameter of mounting tube major diameter section, horizontal sheathed tube one end is equipped with the greater bulge loop of external diameter, two the sleeve pipe passes two respectively optical signal spare mounting hole just the bulge loop is arranged in the casing originally externally and with the outer wall in close contact with of shell body, two the mounting tube minor diameter section of optical signal spare mounting tube inserts two respectively in the sheathed tube central through-hole, two bulge loops respectively with two annular boss in close contact with annular boss close contact, the mounting disc is equipped with the one end of horizontal central through-hole and is equipped with the one end of this central through-hole counter bore hole and is equipped with the counter bore of mounting tube and the mounting tube corresponds respectively the mounting hole the mounting tube lateral wall of two the counter bore of annular boss the mounting tube corresponds the mounting hole is the mounting tube lateral wall of the mounting hole is connected the mounting tube.
5. The waterway control system for water quality analysis of claim 4, wherein: the panel of dismantling of metering device is the transparent plate, the panel of dismantling of color comparison device is opaque plate.
6. A waterway control system for water quality analysis according to claim 4 or 5, wherein: the aperture of the central through hole of the connecting column is 2mm, a transverse partition plate is arranged between the upper section through hole and the lower section through hole of the connecting pipe, a vertical through hole with the aperture of 2mm is arranged at the center of the partition plate, and the aperture of the central through hole of the small-diameter section of the joint is equal to or larger than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220356079.1U CN218445148U (en) | 2022-02-22 | 2022-02-22 | Waterway control system for water quality analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220356079.1U CN218445148U (en) | 2022-02-22 | 2022-02-22 | Waterway control system for water quality analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218445148U true CN218445148U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220356079.1U Active CN218445148U (en) | 2022-02-22 | 2022-02-22 | Waterway control system for water quality analysis |
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| Country | Link |
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| CN (1) | CN218445148U (en) |
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2022
- 2022-02-22 CN CN202220356079.1U patent/CN218445148U/en active Active
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