CN109323737B - Water level measuring method and device - Google Patents
Water level measuring method and device Download PDFInfo
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- CN109323737B CN109323737B CN201811094801.3A CN201811094801A CN109323737B CN 109323737 B CN109323737 B CN 109323737B CN 201811094801 A CN201811094801 A CN 201811094801A CN 109323737 B CN109323737 B CN 109323737B
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- water
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- circuit board
- functional circuit
- pressure sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
Abstract
The invention discloses a water level measuring method, which is used for measuring the depth of a water sampling point at the lower end of a water pumping pipe of a water quality sampler. The invention has the advantages that: the use is convenient and flexible. The invention also discloses a water level measuring device.
Description
Technical Field
The invention relates to the technical field of water sample collection, in particular to a water level measuring method. The invention also relates to a water level measuring device.
Background
Water quality sampling analysis is one of the main contents of national environmental protection supervision and monitoring work. At present, the daily sampling modes of a water environment detection management department mainly comprise the following two modes: (1) and (5) manually collecting. In the sampling mode, a simple sampling barrel is manually used, so that a sampler cannot intuitively know and control the depth of the sampling barrel and the sampling process, and the sampling flexibility is limited to a certain extent; (2) and (5) equipment acquisition. In the mode, an operator uses automatic equipment for collection, but the required equipment has heavy volume, higher cost and inconvenient carrying and use, and can not carry out collection in the field with poor ground surface conditions. Meanwhile, most of common commercially available water quality sampling equipment cannot measure the water level of a water sampling point in real time in the process of lowering a water pumping pipe, and is not flexible and convenient.
Disclosure of Invention
The invention aims to provide a water level measuring method which has the characteristics of convenience and flexibility in use. The invention also discloses a water level measuring device.
The technical scheme adopted by the invention is as follows:
the method is characterized in that a sealed air pipe is utilized to convert the pressure of liquid in the water pumping pipe into air pressure, then the air pressure data in the sealed air pipe is collected through a pressure sensor, and after information processing is carried out through a functional circuit board, the depth value of the water sampling point is finally obtained.
Water level measuring device for measure the degree of depth of the water sampling point that the lower extreme of the drinking-water pipe of quality of water sample thief was located, this quality of water sample thief is still including the peristaltic pump, measuring device includes:
the three-way electromagnetic valve comprises a water inlet end, a water outlet end and a communication end;
sealing the air pipe;
an air pressure sensor;
the functional circuit board is provided with an information acquisition module and an A/D conversion module;
a display module;
a power supply module;
a conduit; and
the upper end of the water pumping pipe is connected to the water inlet end;
the water outlet end is connected to a water pumping port of a peristaltic pump of the water quality sampler through a conduit;
one end of the sealed air pipe is communicated with the communication end, and the other end of the sealed air pipe is matched with the air pressure sensor;
the air pressure sensor is in signal connection with the information acquisition module, the information acquisition module is in signal connection with the A/D conversion module, and the A/D conversion module is in signal connection with the display module;
the power module provides electric energy for the three-way electromagnetic valve, the air pressure sensor, the functional circuit board and the display module.
The functional circuit board is also provided with a communication module, the A/D conversion module is connected with the communication module through signals, and the communication module is connected with peripheral equipment through signals.
And the functional circuit board is also provided with a control module which is connected to the three-way electromagnetic valve through signals.
Compared with the prior art, the invention has the advantages that: the use is convenient and flexible. The water level measuring method and the water level measuring device of the invention obtain corresponding water level information by detecting the air pressure value capable of reflecting the water level change, solve the problem that most water quality samplers on the market can not measure the water level in real time when in use, increase the flexibility of water quality sampling work and provide convenience for water quality sampling practitioners.
Drawings
The invention is further illustrated with reference to the following figures and examples:
fig. 1 is a connection block diagram of embodiment 2 of the present invention.
In the figure:
10. the three-way electromagnetic valve comprises a three-way electromagnetic valve 11, a water inlet end 12, a water outlet end 13 and a communication end;
20. sealing the air pipe;
30. an air pressure sensor;
40. the system comprises a functional circuit board 41, an information acquisition module 42, an A/D conversion module 43, a communication module 44 and a control module;
50. a display module;
60. a power supply module;
70. a conduit;
100. a water pumping pipe.
Detailed Description
For convenience of explanation, in the following embodiments, the lower end of the water pumping pipe of the water quality sampler refers to one end of the water pumping pipe which enters water and then enters water when water samples are collected; on the contrary, one end of the pumping pipe for discharging water is set as an upper end.
Example 1
The water level measuring method is used for measuring the depth of a water collecting point where the lower end of a water pumping pipe of a water quality sampler is located. Specifically, the method comprises the steps of converting the pressure of liquid in a water pumping pipe into air pressure by using a sealed air pipe, collecting air pressure data in the sealed air pipe by using a pressure sensor, and finally obtaining the depth value of a water collecting point after information processing is carried out on the air pressure data by using a functional circuit board. The method is simple, can detect at any time in the process of pumping water, and is flexible and convenient. The method of example 1 can be implemented by the apparatus of example 2 described below, but is not limited thereto.
Example 2
Referring to fig. 1, the water level measuring apparatus is used for measuring the depth of a water sampling point where the lower end of a water pumping pipe 100 of a water quality sampler (not shown) is located, and the water quality sampler further comprises a peristaltic pump (not shown).
Specifically, the method comprises the following steps:
the measuring device includes: the three-way electromagnetic valve 10, the sealed air pipe 20, the air pressure sensor 30, the functional circuit board 40, the display module 50, the power supply module 60, the catheter 70 and the like.
The three-way electromagnetic valve 10 comprises a water inlet end 11, a water outlet end 12 and a communication end 13. That is, after the three-way electromagnetic valve 10 works, the water inlet end 11 and the water outlet end 12 can be communicated, and the water inlet end 11 and the communication end 13 are disconnected; alternatively, the water inlet end 11 and the communication end 13 are connected and the water inlet end 11 and the water outlet end 12 are disconnected.
The functional circuit board 40 is provided with an information acquisition module 41 and an A/D conversion module 42.
More specifically:
the upper end of the pumping pipe 100 is connected to the water inlet end 11.
The water outlet end 12 is connected to the suction port of the peristaltic pump of the water sampler through the conduit 70.
One end of the sealed air tube 20 is communicated with the communication end 13, and the other end is matched with the air pressure sensor 30. That is, the air pressure detecting member of the air pressure sensor 30 is positioned inside the other end of the sealed air tube 20, so that the air pressure value inside the sealed air tube 20 can be detected at any time.
The air pressure sensor 30 is connected to the information collecting module 41 by signals, the information collecting module 41 is connected to the a/D converting module 42 by signals, and the a/D converting module 42 is connected to the display module 50 by signals.
The power module 60 provides power for the aforementioned three-way solenoid valve 10, the air pressure sensor 30, the functional circuit board 40, the display module 50, and the like.
Thus, when the water inlet end 11 is connected to the water outlet end 12 and the water inlet end 11 is disconnected from the connection end 13 after the lower end of the water pumping pipe 100 reaches a proper position, a water sample collection operation can be performed. After the three-way electromagnetic valve 10 switches the channel, when the water inlet end 11 is connected to the connection end 13 and the water inlet end 11 is disconnected from the water outlet end 12, the air pressure sensor 30 detects the pressure value in the sealed air tube 20, and then transmits the pressure value to the information acquisition module 41, after the information acquisition module 41 continuously transmits the pressure information to the a/D conversion module 42, the a/D conversion module 42 converts the pressure information value into visual water depth digital information, and then the water depth digital information is displayed on the display module 50. Obviously, the display module 50 may be a display or a voice broadcasting device.
Optimizing:
the functional circuit board 40 is also provided with a communication module 43. The a/D conversion module 42 is connected to the communication module 43 through signals, and the communication module 43 is connected to peripheral devices such as a mobile phone and an external display through signals. Thus, the device is more flexible to use.
The functional circuit board 40 is further provided with a control module 44, and the control module 44 is in signal connection with the three-way solenoid valve 10. That is, the control module 44 is used to control the operating state of the three-way solenoid valve 10.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. Water level measuring device for measure the degree of depth of the water sampling point that the lower extreme of drinking-water pipe (100) of quality of water sample thief was located, this quality of water sample thief still including the peristaltic pump, its characterized in that: the measuring device includes:
the three-way electromagnetic valve (10), the three-way electromagnetic valve (10) includes a water inlet end (11), a water outlet end (12) and a communicating end (13);
a sealed air tube (20);
a barometric pressure sensor (30);
the functional circuit board (40), the information acquisition module (41), A/D conversion module (42) are set on the functional circuit board (40);
a display module (50);
a power supply module (60);
a conduit (70); and
the upper end of the water pumping pipe (100) is connected to the water inlet end (11);
the water outlet end (12) is connected to the water pumping port of the peristaltic pump of the water quality sampler through a conduit (70);
one end of the sealed air pipe (20) is communicated with the communication end (13), and the other end is matched with the air pressure sensor (30);
the air pressure sensor (30) is in signal connection with the information acquisition module (41), the information acquisition module (41) is in signal connection with the A/D conversion module (42), and the A/D conversion module (42) is in signal connection with the display module (50);
the power module (60) provides electric energy for the three-way electromagnetic valve (10), the air pressure sensor (30), the functional circuit board (40) and the display module (50).
2. The water level measuring device according to claim 1, wherein: the functional circuit board (40) is also provided with a communication module (43), the A/D conversion module (42) is connected to the communication module (43) through signals, and the communication module (43) is connected with peripheral equipment through signals.
3. The water level measuring device according to claim 1, wherein: the functional circuit board (40) is also provided with a control module (44), and the control module (44) is connected to the three-way electromagnetic valve (10) through signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811094801.3A CN109323737B (en) | 2018-09-19 | 2018-09-19 | Water level measuring method and device |
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| CN201811094801.3A CN109323737B (en) | 2018-09-19 | 2018-09-19 | Water level measuring method and device |
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| CN109323737A CN109323737A (en) | 2019-02-12 |
| CN109323737B true CN109323737B (en) | 2020-11-10 |
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| CN101718640A (en) * | 2009-12-11 | 2010-06-02 | 西北核技术研究所 | Split type gas displacement type underground water sampler |
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| CN204535811U (en) * | 2014-12-31 | 2015-08-05 | 东莞市海川博通信息科技有限公司 | A kind of air bubble type water gauge of anti-condensation |
| CN208780295U (en) * | 2018-09-19 | 2019-04-23 | 宁波市机电工业研究设计院有限公司 | Level measurement device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5553705B2 (en) * | 2010-08-04 | 2014-07-16 | シスメックス株式会社 | Reagent preparation device |
| CN103698385B (en) * | 2013-12-06 | 2015-09-23 | 宁波检验检疫科学技术研究院 | A kind of Direct Analysis device of solid sample |
| CN204854879U (en) * | 2015-08-01 | 2015-12-09 | 武汉新烽光电科技有限公司 | Device of compensation is switched to inside and outside gas circuit of non - pressure release bubble level gauge |
| CN105526988A (en) * | 2016-02-16 | 2016-04-27 | 唐山现代工控技术有限公司 | Using method of bubble type water gauge and bubble type water gauge device |
| CN108449435A (en) * | 2018-05-10 | 2018-08-24 | 浙江索奥环境技术有限公司 | Distributed water quality monitoring dynamic quality control system |
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- 2018-09-19 CN CN201811094801.3A patent/CN109323737B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718640A (en) * | 2009-12-11 | 2010-06-02 | 西北核技术研究所 | Split type gas displacement type underground water sampler |
| CN102967490A (en) * | 2012-11-23 | 2013-03-13 | 华东师范大学 | Real-time water sample acquiring system and method |
| CN103364046A (en) * | 2013-07-22 | 2013-10-23 | 武汉大学 | Intelligent air interface type water level gauge and water level measurement method |
| CN204535811U (en) * | 2014-12-31 | 2015-08-05 | 东莞市海川博通信息科技有限公司 | A kind of air bubble type water gauge of anti-condensation |
| CN208780295U (en) * | 2018-09-19 | 2019-04-23 | 宁波市机电工业研究设计院有限公司 | Level measurement device |
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