CN108241066B - Internal circulation pipeline system for multi-test-solution program detection and control method thereof - Google Patents
Internal circulation pipeline system for multi-test-solution program detection and control method thereof Download PDFInfo
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- CN108241066B CN108241066B CN201810050862.3A CN201810050862A CN108241066B CN 108241066 B CN108241066 B CN 108241066B CN 201810050862 A CN201810050862 A CN 201810050862A CN 108241066 B CN108241066 B CN 108241066B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
Abstract
The invention discloses an internal circulation pipeline system for detecting multiple test solution programs and a control method thereof. The control method of the system not only comprises the processes of sample introduction of the test solution, cleaning of the whole pipeline, discharge of waste liquid and the like, but also provides conditions for the internal circulation process of the test solution and the cleaning solution which are required to be realized in the detection process. The pipeline system has the advantages of simple structure and convenient use, and is suitable for an environmental water body on-line monitoring and analyzing system and various on-line monitoring and process analyzing instrument systems including production process monitoring, medical process and the like.
Description
Technical Field
The invention belongs to the technical field of instrument analysis automation, and particularly relates to an internal circulation pipeline system for multi-test-solution program detection and a control method thereof.
Background
The realization of the automation of the sample detection process is a requirement of instrument analysis, and the detection process generally comprises the processes of sample introduction, analysis, waste liquid removal, cleaning and the like. The current popular method is to use a multi-position valve and a peristaltic pump to realize that a plurality of test solutions and reagents enter a detection/reaction system (for example, a multi-parameter water quality monitoring micro-system based on an MOMES micro spectrometer, the publication number is CN 102147373A; a rapid online monitoring instrument for total phosphorus in water quality, the publication number is CN 203672889U).
In the detection process, the process of maintaining the internal circulation of the test solution in the detection cell/reaction cell, such as the COD detection process using the reducing substances in the hydroxyl radical oxidation water body generated on line as the working principle, the dynamic solution deposition process in the stripping voltammetry, the process of repeatedly passing the reaction solution through the reaction cell in order to improve the yield in the dynamic solution deposition process and certain electrochemical synthesis processes, cannot be realized by the existing multi-position valve + peristaltic pump technology.
Disclosure of Invention
In order to realize the whole process of analysis and detection such as sample introduction, internal circulation, integral pipeline cleaning, waste liquid discharge and the like, the invention provides an internal circulation pipeline system for multi-test liquid program detection and a control method thereof.
In order to solve the technical problems and achieve the technical effects, the invention is realized by the following technical scheme:
an internal circulation pipeline system for multi-test solution program detection comprises a plurality of test solution bottles, wherein each test solution bottle can be different test solutions to be analyzed or reagents participating in reaction detection, each test solution bottle is connected with a first port of a first three-way electromagnetic valve through a corresponding two-way electromagnetic valve, a second port of the first three-way electromagnetic valve is connected with a cleaning bottle, a third port of the first three-way electromagnetic valve is connected with a first port of a second three-way electromagnetic valve, a second port of the second three-way electromagnetic valve is connected with a first port of a third three-way electromagnetic valve, a third port of the second three-way electromagnetic valve is connected with a liquid inlet positioned at the upper part of the wall of a detection pool through a first peristaltic pump, a liquid outlet positioned at the bottom of the detection pool is connected with a first port of a fourth three-way electromagnetic valve through a second peristaltic pump, and a second port of the fourth three-way electromagnetic valve is in an empty joint, and a third port of the fourth three-way electromagnetic valve is connected with a third port of the third three-way electromagnetic valve, and a second port of the third three-way electromagnetic valve is connected with a waste liquid bottle.
Furthermore, the two-way electromagnetic valve, the first three-way electromagnetic valve, the second three-way electromagnetic valve, the third three-way electromagnetic valve, the fourth three-way electromagnetic valve, the first peristaltic pump and the second peristaltic pump are all controlled by an embedded chip.
The following two-way electromagnetic valve is in a closed state unless the opening is indicated; three ports of the three-way electromagnetic valve, wherein when a certain port is in a closed state, the other two ports are in an open state; the peristaltic pump is in the off state unless the on state is noted.
Furthermore, the embedded chip controls any one of the two-way solenoid valves to be in an open state, the rest of the two-way solenoid valves are in a closed state, the first port and the third port of the first three-way solenoid valve are in an open state, the first port and the third port of the second three-way solenoid valve are in an open state, the first peristaltic pump is in an open state, the second port and the third port of the fourth three-way solenoid valve are in an open state, and the test solution inlet pipeline is connected.
Furthermore, the embedded chip controls the second port and the third port of the second three-way electromagnetic valve to be in an open state at the same time, the first peristaltic pump is in an open state, the second peristaltic pump is in an open state, the first port and the third port of the third three-way electromagnetic valve are in an open state, and the first port and the third port of the fourth three-way electromagnetic valve are in an open state to connect the internal circulation pipeline.
Furthermore, the embedded chip controls the second port and the third port of the first three-way electromagnetic valve to be in an open state, the first port and the third port of the second three-way electromagnetic valve to be in an open state, the first peristaltic pump is in an open state, and the cleaning liquid inlet pipeline is connected.
Furthermore, the embedded chip controls the second port and the third port of the second three-way electromagnetic valve to be in an open state, the first peristaltic pump is in an open state, the second port and the third port of the fourth three-way electromagnetic valve are in an open state, the first port and the third port of the third three-way electromagnetic valve are in an open state, and the residual cleaning liquid recovery pipeline is connected.
Furthermore, the embedded chip controls the second port and the third port of the third three-way electromagnetic valve to be in an open state, the second peristaltic pump is in an open state, and the first port and the third port of the fourth three-way electromagnetic valve are in a closed state, so that the waste liquid discharge pipeline is connected.
A control method of an internal circulation pipeline system for multi-test solution program detection comprises the following steps:
step 1) when a test solution needs to be added, the specific method for connecting the test solution inlet pipeline comprises the following steps:
opening two-way electromagnetic valves on one test solution bottle, closing all the two-way electromagnetic valves on the other test solution bottles, opening ports I and III of a first three-way electromagnetic valve, closing a port II of the first three-way electromagnetic valve, opening ports I and III of a second three-way electromagnetic valve, closing a port II of the second three-way electromagnetic valve, opening a first peristaltic pump, closing a second peristaltic pump and closing a port I of a fourth three-way electromagnetic valve;
at the moment, the test solution to be added is sucked out from the corresponding test solution bottle under the action of the first peristaltic pump, and flows into the detection pool from a solution inlet positioned at the upper part of the pool wall of the detection pool after passing through the first port and the third port of the first three-way electromagnetic valve and the first port and the third port of the second three-way electromagnetic valve;
step 2) when the test solution needs to be detected and the internal circulation pipeline needs to be connected, the specific method comprises the following steps:
closing the first port of the second three-way electromagnetic valve, opening the second and third ports of the second three-way electromagnetic valve, opening the first peristaltic pump, opening the second peristaltic pump, opening the first and third ports of the fourth three-way electromagnetic valve, closing the second port of the fourth three-way electromagnetic valve, opening the first and third ports of the third three-way electromagnetic valve, and closing the second port of the third three-way electromagnetic valve;
at the moment, the test solution in the detection pool is sucked out from a liquid outlet at the bottom of the detection pool under the combined action of the first peristaltic pump and the second peristaltic pump, and flows back into the detection pool from a liquid inlet at the upper part of the wall of the detection pool after passing through a first port and a third port of the fourth three-way electromagnetic valve, a third port and a first port of the third three-way electromagnetic valve and a second port and a third port of the second three-way electromagnetic valve;
step 3) after the test solution detection is finished, connecting a waste liquid discharge pipeline, wherein the specific method comprises the following steps:
opening the second port and the third port of the third three-way electromagnetic valve, closing the first port, opening the second peristaltic pump, opening the first port and the third port of the fourth three-way electromagnetic valve, and closing the second port;
at the moment, the test solution waste liquid in the detection pool is sucked out from the liquid outlet at the bottom of the detection pool under the action of the second peristaltic pump, and flows into the waste liquid bottle after passing through the first port and the third port of the fourth three-way electromagnetic valve and the third port and the second port of the third three-way electromagnetic valve, so that the test solution waste liquid is discharged;
step 4) when the internal circulation pipeline needs to be cleaned, firstly, a cleaning liquid inlet pipeline is connected, and the specific method comprises the following steps:
opening the second port and the third port of the first three-way electromagnetic valve, closing the first port, opening the first port and the third port of the second three-way electromagnetic valve, closing the second port, opening the first peristaltic pump, closing the second peristaltic pump and closing the first port of the fourth three-way electromagnetic valve;
at the moment, the cleaning liquid in the cleaning bottle is sucked out from the bottle mouth of the cleaning bottle under the action of the first peristaltic pump, and flows into the detection pool from a liquid inlet positioned at the upper part of the pool wall of the detection pool after passing through the second port and the third port of the first three-way electromagnetic valve and the first port and the third port of the second three-way electromagnetic valve;
and 5) after the cleaning liquid flows into the detection pool, switching on the internal circulation pipeline again, wherein the specific method comprises the following steps:
closing the first port of the second three-way electromagnetic valve, opening the second and third ports of the second three-way electromagnetic valve, opening the first peristaltic pump, opening the second peristaltic pump, opening the first and third ports of the fourth three-way electromagnetic valve, closing the second port of the fourth three-way electromagnetic valve, opening the first and third ports of the third three-way electromagnetic valve, and closing the second port of the third three-way electromagnetic valve;
at this time, the cleaning liquid in the detection pool is sucked out from the liquid outlet at the bottom of the detection pool under the combined action of the first peristaltic pump and the second peristaltic pump, and flows back into the detection pool from the liquid inlet at the upper part of the pool wall of the detection pool after passing through the first port and the third port of the fourth three-way electromagnetic valve, the third port and the first port of the third three-way electromagnetic valve and the second port and the third port of the second three-way electromagnetic valve;
and 6) after the internal circulation of the cleaning solution is finished, switching on a residual cleaning solution recovery pipeline, wherein the specific method comprises the following steps:
opening the second port and the third port of the second three-way electromagnetic valve, closing the first port, opening the first peristaltic pump, closing the second peristaltic pump, opening the second port and the third port of the fourth three-way electromagnetic valve, closing the first port, opening the first port and the third port of the third three-way electromagnetic valve, and closing the second port;
at this time, a cleaning solution is remained in the liquid pipe between the second three-way electromagnetic valve, the third three-way electromagnetic valve and the fourth three-way electromagnetic valve, and under the action of the first peristaltic pump, the cleaning solution flows back into the detection pool from a liquid inlet positioned at the upper part of the pool wall of the detection pool after passing through a third port and a first port of the third three-way electromagnetic valve and a second port and a third port of the second three-way electromagnetic valve; when the residual cleaning liquid is recovered, the second port of the fourth three-way electromagnetic valve is opened and is connected with the atmosphere, so that the residual cleaning liquid can be sucked into the detection pool by the first peristaltic pump, and the complete recovery of the residual cleaning liquid is realized;
and 7) after the residual cleaning solution is completely recovered, finally connecting a waste liquid discharge pipeline, wherein the specific method comprises the following steps:
opening the second port and the third port of the third three-way electromagnetic valve, closing the first port, opening the second peristaltic pump, opening the first port and the third port of the fourth three-way electromagnetic valve, and closing the second port;
at this time, the waste cleaning liquid in the detection pool is sucked out from the liquid outlet at the bottom of the detection pool under the action of the second peristaltic pump, and flows into the waste liquid bottle after passing through the first port and the third port of the fourth three-way electromagnetic valve and the third port and the second port of the third three-way electromagnetic valve, so that the cleaning of the internal circulation pipeline is realized.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a liquid pipeline system, which utilizes a small number of two-way electromagnetic valves, three-way electromagnetic valves, peristaltic pumps, reagent bottles, corresponding three-way pipeline switching connectors and the like, and controls the opening and closing of the ports of the electromagnetic valves and the operation of the peristaltic pumps through an embedded chip, thereby realizing the automatic detection process of on-line analysis of various samples or addition of various reagent programs. The control method of the pipeline system not only comprises the processes of sample introduction of the test solution, cleaning of the whole pipeline, discharge of waste liquid and the like, but also provides conditions for the internal circulation process of the test solution and the cleaning solution which are required to be realized in the detection process. The pipeline system has the advantages of simple structure and convenient use, and is suitable for various online monitoring and process analysis instrument systems such as an environmental water body online monitoring and analysis system and various online monitoring and process analysis system including a production process monitoring system, a medical process and the like.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of an internal circulation piping system according to the present invention;
FIG. 2 is a schematic structural view of the present invention when the test solution inlet line is connected;
FIG. 3 is a schematic structural view of the present invention when the internal circulation line of the test solution is connected;
FIG. 4 is a schematic structural view of the cleaning solution inlet line according to the present invention;
FIG. 5 is a schematic structural diagram of the present invention when the internal circulation pipeline of the cleaning solution is connected;
FIG. 6 is a schematic structural diagram of the present invention when the residual cleaning solution recycling pipeline is connected;
FIG. 7 is a schematic view showing the structure of the waste liquid discharge line according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. The description set forth herein is intended to provide a further understanding of the invention and forms a part of this application and is intended to be an exemplification of the invention and is not intended to limit the invention to the particular embodiments illustrated.
Referring to fig. 1, an internal circulation pipeline system for multi-test solution program detection includes a plurality of test solution bottles 1, each of the test solution bottles 1 may be different test solutions to be analyzed or reagents participating in reaction detection, each of the test solution bottles 1 is connected to a first port of a first three-way electromagnetic valve 3 through a corresponding two-way electromagnetic valve 2, a second port of the first three-way electromagnetic valve 3 is connected to a cleaning bottle 4, a third port of the first three-way electromagnetic valve 3 is connected to a first port of a second three-way electromagnetic valve 5, a second port of the second three-way electromagnetic valve 5 is connected to a first port of a third three-way electromagnetic valve 6, a third port of the second three-way electromagnetic valve 5 is connected to a solution inlet located at an upper portion of a cell wall of a detection cell 8 through a first peristaltic pump 7, a solution outlet located at a bottom of the detection cell 8 is connected to a first port of a fourth three-way electromagnetic valve 10 through a peristaltic pump 9, the second port of the fourth three-way electromagnetic valve 10 is connected in an idle mode, the third port of the fourth three-way electromagnetic valve 10 is connected with the third port of the third three-way electromagnetic valve 6, and the second port of the third three-way electromagnetic valve 6 is connected with the waste liquid bottle 11.
Further, the two-way solenoid valve 2, the first three-way solenoid valve 3, the second three-way solenoid valve 5, the third three-way solenoid valve 6, the fourth three-way solenoid valve 10, the first peristaltic pump 7 and the second peristaltic pump 9 are all controlled by embedded chips.
The following two-way electromagnetic valve is in a closed state unless the opening is indicated; three ports of the three-way electromagnetic valve, wherein when a certain port is in a closed state, the other two ports are in an open state; the peristaltic pump is in the off state unless the on state is noted.
Further, referring to fig. 2, the embedded chip controls any one of the two-way solenoid valves 2 to be in an open state, the other two-way solenoid valves 2 to be in a closed state, the first and third ports of the first three-way solenoid valve 3 are in an open state, the first and third ports of the second three-way solenoid valve 5 are in an open state, the first peristaltic pump 7 is in an open state, and the second and third ports of the fourth three-way solenoid valve 10 are in an open state, so as to connect the test solution inlet pipeline.
Further, referring to fig. 3 and 5, the embedded chip controls the second port and the third port of the second three-way electromagnetic valve 5 to be in an open state, the first peristaltic pump 7 is in an open state, the second peristaltic pump 9 is in an open state, the first port and the third port of the third three-way electromagnetic valve 6 are in an open state, and the first port and the third port of the fourth three-way electromagnetic valve 10 are in an open state, so as to connect the internal circulation pipeline.
Further, referring to fig. 4, the embedded chip controls the second port and the third port of the first three-way electromagnetic valve 3 to be in an open state, the first port and the third port of the second three-way electromagnetic valve 5 to be in an open state, and the first peristaltic pump 7 is in an open state, so as to be connected with the cleaning liquid inlet pipeline.
Further, referring to fig. 6, the embedded chip controls the second port and the third port of the second three-way electromagnetic valve 5 to be in an open state, the first peristaltic pump 7 is in an open state, the second port and the third port of the fourth three-way electromagnetic valve 10 are in an open state, and the first port and the third port of the third three-way electromagnetic valve 6 are in an open state, so as to connect the residual cleaning solution recovery pipeline.
Further, referring to fig. 7, the embedded chip controls the second port and the third port of the third three-way electromagnetic valve 6 to be in an open state, the second peristaltic pump 9 to be in an open state, and the first port and the third port of the fourth three-way electromagnetic valve 10 to be in a closed state, so as to connect the waste liquid discharge pipeline.
A control method of an internal circulation pipeline system for multi-test solution program detection comprises the following steps:
step 1) when a test solution needs to be added, the specific method for connecting the test solution inlet pipeline comprises the following steps:
referring to fig. 2, the two-way electromagnetic valve 2 on one of the test solution bottles 1 is opened, the two-way electromagnetic valves 2 on the other test solution bottles 1 are all closed, the first port and the third port of the first three-way electromagnetic valve 3 are opened, the second port of the first three-way electromagnetic valve is closed, the first port and the third port of the second three-way electromagnetic valve 5 are opened, the second port of the second three-way electromagnetic valve is closed, the first peristaltic pump 7 is opened, the second peristaltic pump 9 is closed, and the first port of the fourth three-way electromagnetic valve 10 is closed;
at this time, the test solution to be added is sucked out from the corresponding test solution bottle 1 under the action of the first peristaltic pump 7, and flows into the detection cell 8 from a solution inlet positioned at the upper part of the cell wall of the detection cell 8 after passing through the first port and the third port of the first three-way electromagnetic valve 3 and the first port and the third port of the second three-way electromagnetic valve 5;
step 2) when the test solution is detected and the internal circulation pipeline needs to be connected, the specific method comprises the following steps:
referring to fig. 3, the first port of the second three-way solenoid valve 5 is closed, the second and third ports thereof are opened, the first peristaltic pump 7 is opened, the second peristaltic pump 9 is opened, the first and third ports of the fourth three-way solenoid valve 10 are opened, the second port thereof is closed, the first and third ports of the third three-way solenoid valve 6 are opened, and the second port thereof is closed;
at this time, the test solution in the detection cell 8 is sucked out from the liquid outlet at the bottom of the detection cell 8 under the combined action of the first peristaltic pump 7 and the second peristaltic pump 9, and flows back into the detection cell 8 from the liquid inlet at the upper part of the cell wall of the detection cell 8 after passing through the first port and the third port of the fourth three-way electromagnetic valve 10, the third port and the first port of the third three-way electromagnetic valve 6, and the second port and the third port of the second three-way electromagnetic valve 5;
step 3) after the test solution detection is finished, connecting a waste liquid discharge pipeline, wherein the specific method comprises the following steps:
referring to fig. 7, the second and third ports of the third three-way solenoid valve 6 are opened, the first port is closed, the second peristaltic pump 9 is opened, the first and third ports of the fourth three-way solenoid valve 10 are opened, and the second port is closed;
at this time, the test solution waste liquid in the detection cell 8 is sucked out from the liquid outlet at the bottom of the detection cell 8 under the action of the second peristaltic pump 9, and flows into the waste liquid bottle 11 after passing through the first port and the third port of the fourth three-way electromagnetic valve 10 and the third port and the second port of the third three-way electromagnetic valve 6, so that the discharge of the test solution waste liquid is realized;
step 4) when the internal circulation pipeline needs to be cleaned, firstly, a cleaning liquid inlet pipeline is connected, and the specific method comprises the following steps:
referring to fig. 4, the second port and the third port of the first three-way solenoid valve 3 are opened, the first port is closed, the first port and the third port of the second three-way solenoid valve 5 are opened, the second port is closed, the first peristaltic pump 7 is opened, the second peristaltic pump 9 is closed, and the first port of the fourth three-way solenoid valve 10 is closed;
at this time, the cleaning liquid in the cleaning bottle 4 is sucked out from the mouth of the cleaning bottle 4 under the action of the first peristaltic pump 7, and flows into the detection pool 8 from a liquid inlet positioned at the upper part of the pool wall of the detection pool 8 after passing through the second port and the third port of the first three-way electromagnetic valve 3 and the first port and the third port of the second three-way electromagnetic valve 5;
and step 5) after the cleaning liquid flows into the detection pool 8, switching on the internal circulation pipeline again, wherein the specific method comprises the following steps:
referring to fig. 5, the first port of the second three-way solenoid valve 5 is closed, the second and third ports thereof are opened, the first peristaltic pump 7 is opened, the second peristaltic pump 9 is opened, the first and third ports of the fourth three-way solenoid valve 10 are opened, the second port thereof is closed, the first and third ports of the third three-way solenoid valve 6 are opened, and the second port thereof is closed;
at this time, the cleaning solution in the detection cell 8 is sucked out from the liquid outlet at the bottom of the detection cell 8 under the combined action of the first peristaltic pump 7 and the second peristaltic pump 9, and flows back into the detection cell 8 from the liquid inlet at the upper part of the cell wall of the detection cell 8 after passing through the first port and the third port of the fourth three-way solenoid valve 10, the third port and the first port of the third three-way solenoid valve 6, and the second port and the third port of the second three-way solenoid valve 5;
and 6) after the internal circulation of the cleaning solution is finished, switching on a residual cleaning solution recovery pipeline, wherein the specific method comprises the following steps:
referring to fig. 6, the second and third ports of the second three-way solenoid valve 5 are opened, the first port is closed, the first peristaltic pump 7 is opened, the second peristaltic pump 9 is closed, the second and third ports of the fourth three-way solenoid valve 10 are opened, the first port is closed, the first and third ports of the third three-way solenoid valve 6 are opened, and the second port is closed;
at this time, the cleaning solution remaining in the liquid pipe between the second three-way solenoid valve 5, the third three-way solenoid valve 6 and the fourth three-way solenoid valve 10 flows back into the detection cell 8 from the liquid inlet located at the upper part of the cell wall of the detection cell 8 after passing through the third and first ports of the third three-way solenoid valve 6 and the second and third ports of the second three-way solenoid valve 5 under the action of the first peristaltic pump 7; when the residual cleaning liquid is recovered, the second port of the fourth three-way electromagnetic valve 10 is opened and connected with the atmosphere, so that the residual cleaning liquid can be sucked into the detection pool 8 by the first peristaltic pump 7, and the complete recovery of the residual cleaning liquid is realized;
and 7) after the residual cleaning solution is completely recovered, finally connecting a waste liquid discharge pipeline, wherein the specific method comprises the following steps:
referring to fig. 7, the second and third ports of the third three-way solenoid valve 6 are opened, the first port is closed, the second peristaltic pump 9 is opened, the first and third ports of the fourth three-way solenoid valve 10 are opened, and the second port is closed;
at this time, the waste cleaning liquid in the detection tank 8 is sucked out from the liquid outlet at the bottom of the detection tank 8 under the action of the second peristaltic pump 9, and flows into the waste liquid bottle 11 after passing through the first and third ports of the fourth three-way electromagnetic valve 10 and the third and second ports of the third three-way electromagnetic valve 6, thereby realizing the cleaning of the internal circulation pipeline.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An internal circulation pipeline system for multi-test solution program detection comprises a plurality of test solution bottles (1), wherein each test solution bottle (1) is connected with a first port of a first three-way electromagnetic valve (3) through a corresponding two-way electromagnetic valve (2), a second port of the first three-way electromagnetic valve (3) is connected with a cleaning bottle (4), a third port of the first three-way electromagnetic valve (3) is connected with a first port of a second three-way electromagnetic valve (5), a second port of the second three-way electromagnetic valve (5) is connected with a first port of a third three-way electromagnetic valve (6), a third port of the second three-way electromagnetic valve (5) is connected with a liquid inlet positioned at the upper part of the wall of a detection pool (8) through a first peristaltic pump (7), a liquid outlet positioned at the bottom of the detection pool (8) is connected with a first port of a fourth three-way electromagnetic valve (10) through a second peristaltic pump (9), a second port of the fourth three-way electromagnetic valve (10) is in idle connection, a third port of the fourth three-way electromagnetic valve (10) is connected with a third port of the third three-way electromagnetic valve (6), and a second port of the third three-way electromagnetic valve (6) is connected with a waste liquid bottle (11); the two-way electromagnetic valve (2), the first three-way electromagnetic valve (3), the second three-way electromagnetic valve (5), the third three-way electromagnetic valve (6), the fourth three-way electromagnetic valve (10), the first peristaltic pump (7) and the second peristaltic pump (9) are all controlled by embedded chips; the method is characterized in that: the embedded chip controls the second port and the third port of the second three-way electromagnetic valve (5) to be in an open state, the first port is in a closed state, the first peristaltic pump (7) is in an open state, the second peristaltic pump (9) is in an open state, the first port and the third port of the third three-way electromagnetic valve (6) are in an open state, the second port is in a closed state, the first port and the third port of the fourth three-way electromagnetic valve (10) are in an open state, the second port is in a closed state, and the internal circulation pipeline is connected.
2. The internal circulation pipeline system for multi-reagent program detection according to claim 1, characterized in that: the embedded chip controls any one of the two-way electromagnetic valves (2) to be in an open state, the other two-way electromagnetic valves (2) are in a closed state, the first port and the third port of the first three-way electromagnetic valve (3) are in an open state, the second port of the first three-way electromagnetic valve is in a closed state, the first port and the third port of the second three-way electromagnetic valve (5) are in an open state, the second port of the second three-way electromagnetic valve is in a closed state, the first peristaltic pump (7) is in an open state, the second peristaltic pump (9) is in a closed state, the first port of the fourth three-way electromagnetic valve (10) is in a closed state, and a test solution inlet pipeline is connected.
3. The internal circulation pipeline system for multi-reagent program detection according to claim 1, characterized in that: the embedded chip controls the second port and the third port of the first three-way electromagnetic valve (3) to be in an open state, the first port of the first three-way electromagnetic valve is in a closed state, the first port and the third port of the second three-way electromagnetic valve (5) are in an open state, the second port of the second three-way electromagnetic valve is in a closed state, the first peristaltic pump (7) is in an open state, the second peristaltic pump (9) is in a closed state, the first port of the fourth three-way electromagnetic valve (10) is in a closed state, and a cleaning liquid inlet pipeline is connected.
4. The internal circulation pipeline system for multi-reagent program detection according to claim 1, characterized in that: the embedded chip controls the second port and the third port of the second three-way electromagnetic valve (5) to be in an open state, the first port of the second three-way electromagnetic valve is in a closed state, the first peristaltic pump (7) is in an open state, the second peristaltic pump (9) is in a closed state, the first port of the fourth three-way electromagnetic valve (10) is in a closed state, the first port and the third port of the third three-way electromagnetic valve (6) are in an open state, the second port of the third three-way electromagnetic valve is in a closed state, and the residual cleaning liquid recovery pipeline is connected.
5. The internal circulation pipeline system for multi-reagent program detection according to claim 1, characterized in that: the embedded chip controls the second port and the third port of the third three-way electromagnetic valve (6) to be in an open state, the first port of the third three-way electromagnetic valve is in a closed state, the second peristaltic pump (9) is in an open state, the first port and the third port of the fourth three-way electromagnetic valve (10) are in an open state, the second port of the fourth three-way electromagnetic valve is in a closed state, and a waste liquid discharge pipeline is connected.
6. A method for controlling an internal circulation pipeline system for multi-reagent program detection according to claim 1, comprising the steps of:
step 1) when a test solution needs to be added, the specific method for connecting the test solution inlet pipeline comprises the following steps:
opening a two-way electromagnetic valve (2) on one test solution bottle (1), closing all the two-way electromagnetic valves (2) on the other test solution bottles (1), opening a first port and a third port of a first three-way electromagnetic valve (3), closing a second port of the first three-way electromagnetic valve, opening a first port and a third port of a second three-way electromagnetic valve (5), closing a second port of the second three-way electromagnetic valve, opening a first peristaltic pump (7), closing a second peristaltic pump (9), and closing a first port of a fourth three-way electromagnetic valve (10);
at the moment, the test solution to be added is sucked out from the corresponding test solution bottle (1) under the action of the first peristaltic pump (7), and flows into the detection pool (8) from a solution inlet positioned at the upper part of the pool wall of the detection pool (8) after passing through the first port and the third port of the first three-way electromagnetic valve (3) and the first port and the third port of the second three-way electromagnetic valve (5);
step 2) when the test solution is detected and the internal circulation pipeline needs to be connected, the specific method comprises the following steps:
closing the first port of the second three-way electromagnetic valve (5), opening the second and third ports thereof, opening the first peristaltic pump (7), opening the second peristaltic pump (9), opening the first and third ports of the fourth three-way electromagnetic valve (10), closing the second port thereof, opening the first and third ports of the third three-way electromagnetic valve (6), and closing the second port thereof;
at the moment, the test solution in the detection pool (8) is sucked out from a liquid outlet at the bottom of the detection pool (8) under the combined action of the first peristaltic pump (7) and the second peristaltic pump (9), and flows back into the detection pool (8) from a liquid inlet at the upper part of the pool wall of the detection pool (8) after passing through a first port and a third port of the fourth three-way electromagnetic valve (10), a third port and a first port of the third three-way electromagnetic valve (6) and a second port and a third port of the second three-way electromagnetic valve (5);
step 3) after the test solution detection is finished, connecting a waste liquid discharge pipeline, wherein the specific method comprises the following steps:
opening the second port and the third port of the third three-way electromagnetic valve (6), closing the first port, opening the second peristaltic pump (9), opening the first port and the third port of the fourth three-way electromagnetic valve (10), and closing the second port;
at the moment, the test solution waste liquid in the detection pool (8) is sucked out from the liquid outlet at the bottom of the detection pool (8) under the action of the second peristaltic pump (9), and flows into a waste liquid bottle (11) after passing through the first port and the third port of the fourth three-way electromagnetic valve (10) and the third port and the second port of the third three-way electromagnetic valve (6), so that the test solution waste liquid is discharged;
step 4) when the internal circulation pipeline needs to be cleaned, firstly, a cleaning liquid inlet pipeline is connected, and the specific method comprises the following steps:
opening the second port and the third port of the first three-way electromagnetic valve (3), closing the first port, opening the first port and the third port of the second three-way electromagnetic valve (5), closing the second port, opening the first peristaltic pump (7), closing the second peristaltic pump (9) and closing the first port of the fourth three-way electromagnetic valve (10);
at the moment, the cleaning liquid in the cleaning bottle (4) is sucked out from the bottle mouth of the cleaning bottle (4) under the action of the first peristaltic pump (7), and flows into the detection pool (8) from a liquid inlet positioned at the upper part of the pool wall of the detection pool (8) after passing through a second port and a third port of the first three-way electromagnetic valve (3) and a first port and a third port of the second three-way electromagnetic valve (5);
and step 5) after the cleaning liquid flows into the detection pool (8), switching on the internal circulation pipeline again, wherein the specific method comprises the following steps:
closing the first port of the second three-way electromagnetic valve (5), opening the second and third ports thereof, opening the first peristaltic pump (7), opening the second peristaltic pump (9), opening the first and third ports of the fourth three-way electromagnetic valve (10), closing the second port thereof, opening the first and third ports of the third three-way electromagnetic valve (6), and closing the second port thereof;
at the moment, the cleaning liquid in the detection pool (8) is sucked out from a liquid outlet at the bottom of the detection pool (8) under the combined action of the first peristaltic pump (7) and the second peristaltic pump (9), and flows back into the detection pool (8) from a liquid inlet at the upper part of the pool wall of the detection pool (8) after passing through a first port and a third port of the fourth three-way electromagnetic valve (10), a third port and a first port of the third three-way electromagnetic valve (6) and a second port and a third port of the second three-way electromagnetic valve (5);
and 6) after the internal circulation of the cleaning solution is finished, switching on a residual cleaning solution recovery pipeline, wherein the specific method comprises the following steps:
opening the second port and the third port of the second three-way electromagnetic valve (5), closing the first port, opening the first peristaltic pump (7), closing the second peristaltic pump (9), opening the second port and the third port of the fourth three-way electromagnetic valve (10), closing the first port, opening the first port and the third port of the third three-way electromagnetic valve (6), and closing the second port;
at the moment, a cleaning solution is remained in the liquid pipe between the second three-way electromagnetic valve (5), the third three-way electromagnetic valve (6) and the fourth three-way electromagnetic valve (10), and under the action of the first peristaltic pump (7), the cleaning solution flows back into the detection pool (8) from a liquid inlet positioned at the upper part of the pool wall of the detection pool (8) after passing through a third port and a first port of the third three-way electromagnetic valve (6) and a second port and a third port of the second three-way electromagnetic valve (5); when the residual cleaning liquid is recovered, the second port of the fourth three-way electromagnetic valve (10) is opened and is connected with the atmosphere, so that the residual cleaning liquid can be sucked into the detection pool (8) by the first peristaltic pump (7), and the complete recovery of the residual cleaning liquid is realized;
and 7) after the residual cleaning solution is completely recovered, finally connecting a waste liquid discharge pipeline, wherein the specific method comprises the following steps:
opening the second port and the third port of the third three-way electromagnetic valve (6), closing the first port, opening the second peristaltic pump (9), opening the first port and the third port of the fourth three-way electromagnetic valve (10), and closing the second port;
at the moment, the cleaning liquid waste liquid in the detection pool (8) is sucked out from the liquid outlet at the bottom of the detection pool (8) under the action of the second peristaltic pump (9), and flows into a waste liquid bottle (11) after passing through the first port and the third port of the fourth three-way electromagnetic valve (10) and the third port and the second port of the third three-way electromagnetic valve (6), so that the cleaning of the internal circulation pipeline is realized.
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| CN205176043U (en) * | 2015-11-14 | 2016-04-20 | 中国科学院合肥物质科学研究院 | Water sample automatic acquisition and digestion instrument |
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| DE3417454A1 (en) * | 1984-05-11 | 1985-11-14 | Pierburg Gmbh & Co Kg | DEVICE FOR MEASURING THE OIL CONTENT OF WATER |
| FR2722879B1 (en) * | 1994-07-19 | 1996-08-23 | Commissariat Energie Atomique | DEVICE FOR THE CONTINUOUS SAMPLING AND ANALYSIS OF A LIQUID EFFLUENT |
| KR20030045420A (en) * | 2001-12-04 | 2003-06-11 | (주) 이스텍 | The measuring system for water quality |
| JP4909648B2 (en) * | 2006-06-06 | 2012-04-04 | クロリンエンジニアズ株式会社 | Circulating ozone water production apparatus and method of operating the apparatus |
| CN104792769B (en) * | 2015-04-09 | 2017-09-19 | 宁波大学 | The dynamic micro-extraction of compound, detection combined unit and method in aqueous sample |
| CN204798005U (en) * | 2015-05-29 | 2015-11-25 | 宁波凯生节能环保科技有限公司 | Multi -functional medical instrument circulation perfusion belt cleaning device |
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| CN205176043U (en) * | 2015-11-14 | 2016-04-20 | 中国科学院合肥物质科学研究院 | Water sample automatic acquisition and digestion instrument |
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