CN112229974A - Alarm device for flow analyzer and monitoring method - Google Patents
Alarm device for flow analyzer and monitoring method Download PDFInfo
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- CN112229974A CN112229974A CN202011156463.9A CN202011156463A CN112229974A CN 112229974 A CN112229974 A CN 112229974A CN 202011156463 A CN202011156463 A CN 202011156463A CN 112229974 A CN112229974 A CN 112229974A
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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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
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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Abstract
The invention belongs to the technical field of flow analyzers, and particularly relates to an alarm device for a flow analyzer, which comprises: the device comprises a plurality of liquid level sensors (3) arranged on a reagent bottle (1), a liquid level sensor (3) arranged on a waste liquid bottle (2), a plurality of electromagnetic valves, a PLC (programmable logic controller) controller (4), a buzzer (11), a display touch screen (5) and a user terminal (6); each pump tube (8) on the flow analyzer (7) is hermetically communicated with the corresponding reagent bottle (1) through a connecting tube (9), the waste liquid bottle (2) is hermetically communicated with the flow analyzer (7) and the plurality of reagent bottles (1) through the connecting tube (9), and each connecting tube (9) is provided with an electromagnetic valve; the PLC (4) is respectively connected with the waste liquid bottle (2) and the plurality of reagent bottles (1); the buzzer (11) and the display touch screen (5) are arranged on the PLC (4), and the PLC (4) is remotely connected with the user terminal (6).
Description
Technical Field
The invention belongs to the technical field of flow analyzers, and particularly relates to an alarm device and a monitoring method for a flow analyzer.
Background
The flow analyzer is used for measuring cyanide, volatile phenol, anionic surfactant, ammonia nitrogen, chemical oxygen demand, sulfide, total phosphorus, total nitrogen, nitrate/nitrite, hexavalent chromium and other components in surface water, underground water, drinking water and environmental water. The method is widely applied to the determination of soil and water environments.
At present, a flow analyzer uses a large amount of reagents in the using process, and the phenomena of reagent exhaustion and air suction often occur in the starting and the test, and the reagents can not be added in time, so that the problems of inaccurate test data of experimental samples or test failure and the like are caused.
Disclosure of Invention
In order to solve the above-mentioned defects in the prior art, the present invention provides an alarm device for a flow analyzer, the device being disposed on the flow analyzer, the device comprising: the system comprises a plurality of liquid level sensors arranged on a reagent bottle, a liquid level sensor arranged on a waste liquid bottle, a plurality of electromagnetic valves, a PLC (programmable logic controller), a buzzer, a display touch screen and a user terminal;
each pump pipe on the flow analyzer is hermetically communicated with a corresponding reagent bottle through a connecting pipe, the waste liquid bottle is hermetically communicated with the flow analyzer and the plurality of reagent bottles through the connecting pipes respectively, and each connecting pipe is provided with an electromagnetic valve; the PLC is respectively connected with the waste liquid bottle and the plurality of reagent bottles, and controls the experimental sample injection reagent liquid level in each reagent bottle and the waste liquid level in the waste liquid bottle by controlling the electromagnetic valve; on buzzer and demonstration touch screen all set up the PLC controller, the solenoid valve electricity that sets up on PLC controller and every connecting pipe is connected, and PLC controller and user terminal remote connection.
As one improvement of the technical scheme, the liquid level sensor arranged on the reagent bottle is used for acquiring the experimental sample injection reagent level value in the reagent bottle in real time.
As one improvement of the technical scheme, the liquid level sensor arranged on the waste liquid bottle is used for collecting the liquid level value of the waste liquid in the waste liquid bottle in real time.
As one improvement of the technical scheme, the PLC is provided with an antenna and is remotely connected with the user terminal through the Internet of things.
As one improvement of the above technical solution, the user terminal is a mobile phone, a computer or a tablet computer.
The invention also provides a monitoring method for the alarm device of the flow analyzer, which comprises the following steps:
the liquid level sensor arranged on each reagent bottle collects the experimental sample injection reagent level value in the corresponding reagent bottle in real time, the experimental sample injection reagent level value is transmitted to the user terminal through the PLC, the experimental sample injection reagent level value is displayed on the display touch screen and the user terminal at the same time, and the user terminal judges whether the experimental sample injection reagent level value on each reagent bottle reaches a preset reagent bottle liquid level safety threshold value or not according to the experimental sample injection reagent level value displayed in real time; sending a control instruction to the PLC according to the judgment result so as to control the on-off of the electromagnetic valve on the corresponding connecting pipe and further control whether to continuously add the experimental sample injection reagent;
the liquid level sensor arranged on the waste liquid bottle collects the liquid level value of the waste liquid in the waste liquid bottle in real time, the liquid level value is transmitted to the user terminal through the PLC, the liquid level value is displayed on the display touch screen and the user terminal at the same time, and the user terminal judges whether the liquid level reaches a preset liquid level safety threshold value of the waste liquid bottle or not according to the liquid level value of the waste liquid displayed in real time; and according to the judgment result, a control instruction is sent to the PLC, so that the on-off of the electromagnetic valve on the corresponding connecting pipe is controlled, and whether the waste liquid bottle needs to be replaced or not is further controlled.
As one improvement of the technical scheme, the user terminal judges whether a preset safety threshold of the liquid level of the reagent bottle is reached according to the experimental sample injection reagent level value in each reagent bottle displayed in real time; sending a control instruction to the PLC according to the judgment result so as to control the on-off of the electromagnetic valve on the corresponding connecting pipe and further control whether to continuously add the experimental sample injection reagent; the method specifically comprises the following steps:
the user terminal judges whether a preset safety threshold of the liquid level of the reagent bottle is reached according to the experimental sample injection reagent level value in a certain reagent bottle displayed in real time;
if the experimental sample injection reagent level value in a certain reagent bottle displayed in real time does not reach the preset safety threshold value of the reagent bottle level, the user terminal does not carry out any operation, the PLC always controls the electromagnetic valve arranged on the reagent bottle to be closed, and the buzzer is not started temporarily;
if the experimental sample injection reagent level value in a certain reagent bottle displayed in real time reaches a preset reagent bottle level safety threshold value, the user terminal sends a control instruction to the PLC to control the buzzer to start, meanwhile, the PLC controls the electromagnetic valve arranged on the reagent bottle to open, and the experimental sample injection reagent is continuously added into the reagent bottle;
and repeating the process, judging whether the experimental sample injection reagent level value in each reagent bottle reaches a preset reagent bottle level safety threshold value or not, and making corresponding operation according to a control instruction sent by the PLC controller.
As one improvement of the technical scheme, the user terminal judges whether a preset liquid level safety threshold of the waste liquid bottle is reached or not according to the real-time displayed liquid level value of the waste liquid; sending a control instruction to the PLC according to the judgment result so as to control the on-off of the electromagnetic valve on the corresponding connecting pipe and further control whether the waste liquid bottle needs to be replaced or not; the method specifically comprises the following steps:
the user terminal judges whether a preset waste liquid bottle liquid level safety threshold value is reached or not according to the real-time displayed waste liquid level value;
if the real-time displayed liquid level value of the waste liquid does not reach the preset liquid level safety threshold value of the waste liquid bottle, the user terminal does not carry out any operation, the PLC controller always controls an electromagnetic valve arranged on the waste liquid bottle to be opened, the waste liquid is continuously led into the waste liquid bottle, and the buzzer is not started temporarily;
if the real-time displayed liquid level value of the waste liquid reaches a preset liquid level safety threshold value of the waste liquid bottle, the user terminal sends a control instruction to the PLC to control the buzzer to start, and meanwhile, the PLC controls the electromagnetic valve arranged on the waste liquid bottle to be closed to stop leading in the waste liquid into the waste liquid bottle.
Compared with the prior art, the invention has the beneficial effects that:
the alarm device can monitor the liquid levels in the reagent bottle and the waste liquid bottle in real time, realize the remote manual control visualization of the flow analyzer in the laboratory, improve the working efficiency of an experimenter and reduce the working intensity of the experimenter; the experimental reagent in the reagent bottle can be led in and closed at any time through the installed liquid level sensor, so that the reagent bottle can be freely taken; in addition, the liquid level sensor is adopted, the PLC, the touch screen and the user terminal equipment are interconnected and intercommunicated through the Internet of things, remote communication can be realized, the working state of the flow analyzer is monitored in real time in a remote mode, the alarm is given out when the experiment sample injection reagent is absent or the waste liquid is about to overflow, and the quick solution treatment is made.
Drawings
Fig. 1 is a schematic diagram of an alarm device for a flow analyzer according to the present invention.
Reference numerals:
1. reagent bottle 2, waste liquid bottle
3. Liquid level sensor 4 and PLC controller
5. Display touch screen 6 and user terminal
7. Flow analyzer 8, pump line
9. Connecting pipe 10 and buzzer
11. Antenna with a shield
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides an alarm device for a flow analyzer, the device comprising: the system comprises a plurality of liquid level sensors 3 arranged on a reagent bottle 1, a liquid level sensor 3 arranged on a waste liquid bottle 2, a plurality of electromagnetic valves, a PLC (programmable logic controller) 4, a buzzer, a display touch screen 5 and a user terminal 6;
each pump pipe 8 on the flow analyzer 7 is hermetically communicated with the corresponding reagent bottle 1 through a connecting pipe 9, the waste liquid bottle 2 is hermetically communicated with the flow analyzer 7 and the plurality of reagent bottles 1 through the connecting pipe 9, and each connecting pipe 9 is provided with an electromagnetic valve; the PLC 4 is respectively connected with the waste liquid bottles 2 and the plurality of reagent bottles 1, and controls the experimental sample injection reagent liquid level in each reagent bottle 1 and the waste liquid level in the waste liquid bottle 2 by controlling the electromagnetic valves; on buzzer 10 and demonstration touch screen 5 all set up PLC controller 4, PLC controller 4 was connected with the solenoid valve electricity that sets up on every connecting pipe 9, and PLC controller 4 and 6 remote connections of user terminal.
The liquid level sensor arranged on the reagent bottle 1 is used for collecting the experimental sample injection reagent level value in the reagent bottle 1 in real time.
The liquid level sensor arranged on the waste liquid bottle 2 is used for collecting the liquid level value of the waste liquid in the waste liquid bottle 2 in real time.
And the PLC 4 is provided with an antenna 11 and is remotely connected with the user terminal 6 through the Internet of things.
The user terminal 6 is a mobile phone, a computer or a tablet computer.
The invention also provides a monitoring method for the alarm device of the flow analyzer, which comprises the following steps:
the liquid level sensor 3 arranged on each reagent bottle 1 collects the experimental sample injection reagent level value in the corresponding reagent bottle 1 in real time, the value is transmitted to the user terminal 6 by the PLC 4 and is simultaneously displayed on the display touch screen 5 and the user terminal 6, and the user terminal 6 judges whether the value reaches the preset reagent bottle liquid level safety threshold value according to the experimental sample injection reagent level value on each reagent bottle 1 displayed in real time; and according to the judgment result, sending a control instruction to the PLC 4 so as to control the on-off of the corresponding electromagnetic valve on the connecting pipe 9 and further control whether to continue adding the experimental sample injection reagent;
specifically, the user terminal 6 judges whether a preset safety threshold of the liquid level of the reagent bottle is reached according to the experimental sample injection reagent level value in a certain reagent bottle displayed in real time;
if the experimental sample injection reagent level value in a certain reagent bottle displayed in real time does not reach the preset safety threshold value of the reagent bottle level, the user terminal 6 does not perform any operation, the PLC 4 always controls the electromagnetic valve arranged on the reagent bottle 1 to be closed, and the buzzer 10 is not started temporarily;
if the experimental sample injection reagent level value in a certain reagent bottle displayed in real time reaches a preset reagent bottle level safety threshold value, the user terminal 6 sends a control instruction to the PLC controller 4 to control the buzzer 10 to start, meanwhile, the PLC controller 4 controls the electromagnetic valve arranged on the reagent bottle 1 to be opened, and the experimental sample injection reagent is continuously added into the reagent bottle 1; prompting that experiment sample introduction reagents need to be added into corresponding reagent bottles; the occurrence of the consequences of inaccurate test data or test failure of the experimental sample can be avoided.
And repeating the process, judging whether the experimental sample injection reagent level value in each reagent bottle reaches a preset reagent bottle level safety threshold value or not, and making corresponding operation according to a control instruction sent by the PLC 4.
The liquid level sensor 3 arranged on the waste liquid bottle 2 collects the liquid level value of the waste liquid in the waste liquid bottle 2 in real time, the liquid level value is transmitted to the user terminal 6 through the PLC 4 and is displayed on the display touch screen 5 and the user terminal 6 at the same time, and the user terminal 6 judges whether the liquid level reaches a preset waste liquid bottle liquid level safety threshold value or not according to the liquid level value of the waste liquid displayed in real time; and according to the judgment result, a control instruction is sent to the PLC 4, so that the on-off of the corresponding electromagnetic valve on the connecting pipe 9 is controlled, and whether the waste liquid bottle 2 needs to be replaced or not is further controlled.
Specifically, the user terminal judges whether a preset waste liquid bottle liquid level safety threshold value is reached according to a waste liquid level value displayed in real time;
if the real-time displayed liquid level value of the waste liquid does not reach the preset liquid level safety threshold value of the waste liquid bottle, the user terminal 6 does not carry out any operation, the PLC 4 always controls the electromagnetic valve arranged on the waste liquid bottle 2 to be opened, the waste liquid is continuously led into the waste liquid bottle 2, and the buzzer 10 is not started temporarily;
if the real-time waste liquid level value that shows reaches preset waste liquid bottle liquid level safety threshold, then user terminal 6 sends control command to PLC controller 4, and control buzzer 10 starts, and simultaneously, PLC controller 4 control sets up the solenoid valve on this waste liquid bottle 2 and closes, stops leading-in waste liquid to this waste liquid bottle 2 in, and the waste liquid in the suggestion waste liquid bottle 2 needs to be fallen, avoids waste liquid to flow to the subaerial of laboratory.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. An alarm device for a flow analyzer, characterized in that the device is arranged on a flow analyzer (7), the device comprising: the device comprises a plurality of liquid level sensors (3) arranged on a reagent bottle (1), a liquid level sensor (3) arranged on a waste liquid bottle (2), a plurality of electromagnetic valves, a PLC (programmable logic controller) controller (4), a buzzer (11), a display touch screen (5) and a user terminal (6);
each pump tube (8) on the flow analyzer (7) is hermetically communicated with the corresponding reagent bottle (1) through a connecting tube (9), the waste liquid bottle (2) is hermetically communicated with the flow analyzer (7) and the plurality of reagent bottles (1) through the connecting tube (9), and each connecting tube (9) is provided with an electromagnetic valve; the PLC (4) is respectively connected with the waste liquid bottle (2) and the plurality of reagent bottles (1), and controls the experimental sample injection reagent liquid level in each reagent bottle (1) and the waste liquid level in the waste liquid bottle (2) by controlling the electromagnetic valve; on buzzer (11) and demonstration touch screen (5) all set up PLC controller (4), PLC controller (4) are connected with the solenoid valve electricity that sets up on every connecting pipe (9), and PLC controller (4) and user terminal (6) remote connection.
2. The alarm device for the flow analyzer according to claim 1, wherein the liquid level sensor (3) disposed on the reagent bottle (1) is used for collecting the level value of the laboratory sample reagent in the reagent bottle (1) in real time.
3. The alarm device for a flow analyzer according to claim 1, wherein the level sensor (3) provided on the waste liquid bottle (2) is used for acquiring a waste liquid level value in the waste liquid bottle (2) in real time.
4. The alarm device for the flow analyzer according to claim 1, wherein the PLC controller (4) is provided with an antenna (11) and is remotely connected to the user terminal (6) through the internet of things.
5. The alarm device for a flow analyzer according to claim 1, wherein the user terminal (6) is a mobile phone, a computer or a tablet computer.
6. A monitoring method of an alarm device for a flow analyzer, which is implemented based on the alarm device for a flow analyzer of any one of claims 1 to 5, the method comprising:
the liquid level sensor (3) arranged on each reagent bottle (1) collects the experimental sample injection reagent level value in the corresponding reagent bottle (1) in real time, the experimental sample injection reagent level value is transmitted to the user terminal (6) through the PLC (4) and is displayed on the display touch screen (5) and the user terminal (6) at the same time, and the user terminal (6) judges whether the experimental sample injection reagent level value on each reagent bottle (1) displayed in real time reaches a preset reagent bottle level safety threshold value or not; sending a control instruction to the PLC (4) according to the judgment result so as to control the on-off of the electromagnetic valve on the corresponding connecting pipe (9) and further control whether to continuously add the experimental sample injection reagent;
the liquid level sensor (3) arranged on the waste liquid bottle (2) collects the liquid level value of the waste liquid in the waste liquid bottle (2) in real time, the liquid level value is transmitted to the user terminal (6) through the PLC (4) and is displayed on the display touch screen (5) and the user terminal (6) at the same time, and the user terminal (6) judges whether the liquid level reaches a preset liquid level safety threshold value of the waste liquid bottle according to the liquid level value of the waste liquid displayed in real time; and according to the judgment result, a control instruction is sent to the PLC (4), so that the on-off of the electromagnetic valve on the corresponding connecting pipe is controlled, and whether the waste liquid bottle (2) needs to be replaced or not is further controlled.
7. The monitoring method of the alarm device for the flow analyzer according to claim 6, wherein the user terminal (6) determines whether a preset safety threshold of the reagent bottle liquid level is reached according to the real-time displayed value of the experimental sample injection reagent level in each reagent bottle (1); sending a control instruction to the PLC (4) according to the judgment result so as to control the on-off of the electromagnetic valve on the corresponding connecting pipe and further control whether to continuously add the experimental sample injection reagent; the method specifically comprises the following steps:
the user terminal (6) judges whether a preset safety threshold of the liquid level of the reagent bottle is reached according to the experimental sample injection reagent level value in a certain reagent bottle (1) displayed in real time;
if the experimental sample introduction reagent level value in a certain reagent bottle (1) displayed in real time does not reach the preset safety threshold value of the reagent bottle level, the user terminal (6) does not carry out any operation, the PLC (4) always controls the electromagnetic valve arranged on the reagent bottle (1) to be closed, and the buzzer (10) is not started temporarily;
if the experimental sample injection reagent level value in a certain reagent bottle (1) displayed in real time reaches a preset reagent bottle level safety threshold value, a user terminal (6) sends a control instruction to a PLC (programmable logic controller) controller (4) to control a buzzer (10) to start, meanwhile, the PLC controller (4) controls an electromagnetic valve arranged on the reagent bottle (1) to be opened, and the experimental sample injection reagent is continuously added into the reagent bottle;
and repeating the process, judging whether the experimental sample introduction reagent level value in each reagent bottle (1) reaches a preset reagent bottle level safety threshold value or not, and making corresponding operation according to a control instruction sent by the PLC (4).
8. The monitoring method of the alarm device for the flow analyzer according to claim 6, wherein the user terminal (6) determines whether a preset safety threshold for the liquid level of the waste liquid bottle is reached according to the real-time displayed liquid level value of the waste liquid; and according to the judgment result, a control instruction is sent to the PLC (4), so that the on-off of the electromagnetic valve on the corresponding connecting pipe (9) is controlled, and whether the waste liquid bottle (2) needs to be replaced or not is further controlled; the method specifically comprises the following steps:
the user terminal (6) judges whether a preset waste liquid bottle liquid level safety threshold value is reached or not according to the waste liquid level value displayed in real time;
if the real-time displayed liquid level value of the waste liquid does not reach the preset liquid level safety threshold value of the waste liquid bottle, the user terminal (6) does not carry out any operation, the PLC (4) always controls an electromagnetic valve arranged on the waste liquid bottle to be opened, the waste liquid is continuously led into the waste liquid bottle, and the buzzer (10) is not started temporarily;
if the real-time displayed liquid level value of the waste liquid reaches a preset liquid level safety threshold value of the waste liquid bottle, the user terminal (6) sends a control instruction to the PLC controller (4) to control the buzzer (10) to start, meanwhile, the PLC controller (4) controls the electromagnetic valve arranged on the waste liquid bottle (2) to close, and the waste liquid is stopped being led into the waste liquid bottle (2).
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| CN202011156463.9A CN112229974A (en) | 2020-10-26 | 2020-10-26 | Alarm device for flow analyzer and monitoring method |
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| CN202011156463.9A CN112229974A (en) | 2020-10-26 | 2020-10-26 | Alarm device for flow analyzer and monitoring method |
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