CN108562707B - Water quality monitoring probe protection structure of self-adaptation water level degree of depth - Google Patents
Water quality monitoring probe protection structure of self-adaptation water level degree of depth Download PDFInfo
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- CN108562707B CN108562707B CN201810265283.0A CN201810265283A CN108562707B CN 108562707 B CN108562707 B CN 108562707B CN 201810265283 A CN201810265283 A CN 201810265283A CN 108562707 B CN108562707 B CN 108562707B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1886—Water using probes, e.g. submersible probes, buoys
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a water quality monitoring probe protection structure with self-adaptive water level depth, which comprises a probe body, an elastic connecting piece and a floatable shell, wherein the probe body is provided with a plurality of water level sensors; the floatable shell is in a barrel shape with a downward opening, and the detection end of the probe body penetrates from the top of the floatable shell to the inner cavity of the floatable shell; the middle periphery of the probe body is in sliding sealing connection with a top plate of the floatable shell; the elastic connecting piece is sleeved on the outer periphery of the probe body, one end of the elastic connecting piece is connected with the probe body, and the other end of the elastic connecting piece is connected with the top plate of the floatable shell. The invention can separate the probe from the water quality to be measured in application, realizes little maintenance and even no maintenance, and can ensure the relative distance between the probe and the water quality to be measured under different water level depth states, thereby ensuring the accuracy of measured data.
Description
Technical Field
The invention relates to the technical field of water quality monitoring, in particular to a water quality monitoring probe protection structure with self-adaptive water level depth.
Background
At present, the probe of the existing domestic water quality on-line monitoring instrument is generally directly placed in the liquid to be monitored, so that the acquisition of water quality related signals is realized, the problem that the surface of the probe is polluted cannot be avoided by the way of directly contacting the liquid to be monitored, and the authenticity of monitoring data is influenced after pollution. However, the existing probe is generally cleaned and maintained manually, but the maintenance is very inconvenient for the probe positioned in a river channel and the like.
Disclosure of Invention
The invention aims to provide a water quality monitoring probe protection structure with self-adaptive water level depth, which can separate a probe from water quality to be measured, realize little maintenance and even no maintenance, ensure the relative distance between the probe and the water quality to be measured under different water level depth states and ensure the accuracy of measured data.
The technical scheme adopted by the invention is as follows: a water quality monitoring probe protection structure of self-adaptive water level depth, comprising: the probe comprises a probe body, an elastic connecting piece and a floatable shell;
the floatable shell is in a barrel shape with a downward opening, and the detection end of the probe body penetrates from the top of the floatable shell to the inner cavity of the floatable shell; the middle periphery of the probe body is in sliding sealing connection with a top plate of the floatable shell;
the elastic connecting piece is sleeved on the outer periphery of the probe body, one end of the elastic connecting piece is connected with the probe body, and the other end of the elastic connecting piece is connected with the top plate of the floatable shell.
The invention is suitable for probe protection for water quality monitoring by utilizing optical principles such as forward scattering of light. When the probe is applied, the opening of the floatable shell is downwards placed into liquid to be tested in a vertical state of the probe, at the moment, the air in the floatable shell is sealed in the cavity of the shell by the liquid to be tested, the floatable shell is subjected to the buoyancy of water, the upward thrust of the air in the cavity, the gravity of the floatable shell and the pulling force of the elastic connecting piece combined with the probe, and floats to a balance position relative to the probe under the action of various forces.
Preferably, the elastic connecting piece is positioned in the inner cavity of the floatable shell, one end of the elastic connecting piece is fixedly connected with the top plate of the floatable shell, and the other end of the elastic connecting piece is fixedly connected with the detection end of the probe body.
Preferably, when the elastic connecting piece is stretched to the maximum length, the probe monitoring section is still positioned in the inner cavity of the floatable shell, and a space is reserved between the probe detection end and the liquid level of the liquid to be detected in the inner cavity of the floatable shell.
As another implementation mode, the elastic connecting piece is positioned above the floatable shell, one end of the elastic connecting piece is fixedly connected with the upper part of the top plate of the floatable shell, and the other end of the elastic connecting piece is fixedly connected with the middle part of the probe body. When water quality monitoring is carried out under the implementation mode, the floatable shell receives downward pulling force combined by the spring and the probe, self gravity and buoyancy combined by water and inner cavity air, floats to a stress balance position, and can also isolate the probe from the liquid level of liquid to be detected.
Preferably, the elastic connecting piece is a spring.
Preferably, the floatable housing is made of ABS material or PC material. Or may be made of other non-metallic materials with a density close to that of water.
According to the invention, the height of the barrel body of the floatable shell and the maximum stretching length of the spring can be adjusted according to the measured water level requirement of the liquid to be measured, so that a certain distance between the probe and the liquid level of the liquid to be measured is always kept within a certain measured water level range.
The beneficial effects are that: according to the invention, the floatable shell is arranged, so that a sealed cavity is formed in the monitoring process, and air in the sealed cavity is sealed, so that protective air capable of isolating the probe from liquid to be tested is formed, the isolation of the monitoring probe from water quality to be tested is realized, the pollution of the water quality to the probe is avoided, cleaning is not required in long-term use, the measurement accuracy of the probe is ensured, secondary damage caused by manual maintenance can be avoided, and the service life of monitoring equipment is prolonged. Meanwhile, the movable sealing layer is matched with the structure of the spring, so that the relative position between the probe and the water quality to be measured is ensured, the probe can complete the task of detection, and the measurement accuracy can be kept.
Drawings
Fig. 1 to 3 are schematic diagrams illustrating an operation state of a specific embodiment of the probe protection structure according to the present invention: FIG. 1 is a schematic diagram showing the relative positions during monitoring of a general water level; FIG. 2 is a schematic diagram showing the relative positions of the monitoring device in deeper water; FIG. 3 is a schematic diagram showing the relative positions of the shallow water level monitoring;
fig. 4 is a schematic structural view of another embodiment of the probe protecting structure of the present invention.
Detailed Description
Further description is provided below in connection with the drawings and the specific embodiments.
Example 1
Referring to fig. 1 to 3, the water quality monitoring probe protection structure of the present embodiment for self-adapting water level depth includes: the probe comprises a probe body 1, an elastic connecting piece 2 and a floatable shell 3;
the floatable shell 3 is in a barrel shape with a downward opening, and the detection end 11 of the probe body 1 penetrates into the inner cavity of the floatable shell 3 from the top of the floatable shell 3; the middle periphery of the probe body 1 is in sliding sealing connection with the top plate of the floatable shell 3;
the elastic connecting piece 2 is sleeved on the outer periphery of the probe body 1, one end of the elastic connecting piece 2 is connected with the probe body 1, and the other end of the elastic connecting piece 2 is connected with the top plate of the floatable shell 3.
In the embodiment of fig. 1 to 3, the elastic connector 2 is located in the inner cavity of the floatable housing 3, and one end of the elastic connector is fixedly connected to the top plate of the floatable housing 3, and the other end of the elastic connector is fixedly connected to the detection end of the probe body 1.
When the elastic connecting piece stretches to the maximum length, the probe monitoring section is still positioned in the inner cavity of the floatable shell, and a gap is reserved between the probe detection end and the liquid level of the liquid to be detected in the inner cavity of the floatable shell.
The elastic connecting piece can adopt a spring. The floatable housing is made of ABS material or PC material, or other non-metallic materials with a density close to that of water may be used.
The top plate of the floatable shell is provided with a through hole for the probe body to penetrate, and sliding sealing connection is realized between the middle part of the probe body and the edge of the through hole on the top plate of the floatable shell through a sliding sealing ring.
According to the invention, the height of the barrel body of the floatable shell and the maximum stretching length of the spring can be adjusted according to the measured water level requirement of the liquid to be measured, so that the condition that a certain distance exists between the probe and the liquid level of the liquid to be measured in a certain measured water level range is always kept.
When the probe is applied, the floatable shell is downwards placed into the liquid to be detected in the vertical state of the probe, at the moment, the air in the floatable shell is sealed in the inner cavity of the shell by the liquid to be detected, the floatable shell is subjected to the buoyancy of water, the upward thrust of the air in the inner cavity (the buoyancy of the water to the air in the inner cavity is transferred to the floatable shell), the self gravity and the pulling force combined by the elastic connecting piece and the probe, and floats to the balance position relative to the probe under the action of multiple forces.
The working principle of this embodiment is shown in fig. 1 to 3, and when the floatable housing reaches the force balance during ordinary water level monitoring, the upward buoyancy of the combination of water and air is equal to the sum of the gravity of the water and the combined tension of the spring and the probe, i.e. F Floating device ＝G+F Pulling device At this time, the distance between the lower end face of the probe and the water body to be measured is h; f in deeper level monitoring Floating device Increase, F to maintain balance Pulling device The spring is lengthened, the floatable shell moves upwards to a balance position relative to the probe, and the test distance h is ensured; f in shallow water level monitoring Floating device Reduced, F to maintain balance Pulling device The spring is short, the floatable shell moves downwards to a balance position relative to the probe, and the test distance h is ensured.
Example 2
Referring to fig. 4, the difference between this embodiment and embodiment 1 is that the elastic connector is located above the floatable housing, and one end of the elastic connector is fixedly connected to the upper portion of the top plate of the floatable housing, and the other end of the elastic connector is fixedly connected to the middle portion of the probe body.
When water quality monitoring is carried out under the implementation mode, the floatable shell receives downward pulling force combined by the spring and the probe, self gravity and buoyancy combined by water and inner cavity air, floats to a stress balance position, and can also isolate the probe from the liquid level of liquid to be detected. However, the relative distance between the probe and the floatable housing in this embodiment is also limited by the minimum length of the spring under compression, allowing a small range of water levels to be measured.
In summary, the probe structure of the invention can automatically balance the pressure difference generated by spring force and pressure change under the condition of different water level depths by the characteristics of the spring, and automatically adjust the relative position of the movable sealing layer and the probe, so that the probe keeps a certain relative distance from the liquid level of water quality to be measured, thereby protecting the probe and ensuring that the measurement is not influenced.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (4)
1. A water quality monitoring probe protection architecture of self-adaptation water level degree of depth, characterized by includes: the probe comprises a probe body, an elastic connecting piece and a floatable shell;
the floatable shell is in a barrel shape with a downward opening, and the detection end of the probe body penetrates from the top of the floatable shell to the inner cavity of the floatable shell; the middle periphery of the probe body is in sliding sealing connection with a top plate of the floatable shell;
the elastic connecting piece is sleeved on the outer periphery of the probe body, one end of the elastic connecting piece is connected with the probe body, and the other end of the elastic connecting piece is connected with the top plate of the floatable shell;
the elastic connecting piece is positioned in the inner cavity of the floatable shell, one end of the elastic connecting piece is fixedly connected with the top plate of the floatable shell, and the other end of the elastic connecting piece is fixedly connected with the detection end of the probe body;
when the elastic connecting piece stretches to the maximum length, the probe detection end is still positioned in the inner cavity of the floatable shell, and a space is reserved between the probe detection end and the liquid level of the liquid to be detected in the inner cavity of the floatable shell;
the elastic connecting piece is a spring.
2. The water quality monitoring probe protection structure with self-adaptive water level depth according to claim 1, wherein the floatable shell is made of an ABS material or a PC material.
3. A water quality monitoring probe protection architecture of self-adaptation water level degree of depth, characterized by includes: the probe comprises a probe body, an elastic connecting piece and a floatable shell;
the floatable shell is in a barrel shape with a downward opening, and the detection end of the probe body penetrates from the top of the floatable shell to the inner cavity of the floatable shell; the middle periphery of the probe body is in sliding sealing connection with a top plate of the floatable shell;
the elastic connecting piece is sleeved on the outer periphery of the probe body, one end of the elastic connecting piece is connected with the probe body, and the other end of the elastic connecting piece is connected with the top plate of the floatable shell;
the elastic connecting piece is positioned above the floatable shell, one end of the elastic connecting piece is fixedly connected with the upper part of the top plate of the floatable shell, and the other end of the elastic connecting piece is fixedly connected with the middle part of the probe body;
the elastic connecting piece is a spring.
4. The water quality monitoring probe protection structure with self-adaptive water level depth according to claim 3, wherein the floatable shell is made of ABS material or PC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810265283.0A CN108562707B (en) | 2018-03-28 | 2018-03-28 | Water quality monitoring probe protection structure of self-adaptation water level degree of depth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810265283.0A CN108562707B (en) | 2018-03-28 | 2018-03-28 | Water quality monitoring probe protection structure of self-adaptation water level degree of depth |
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| CN108562707A CN108562707A (en) | 2018-09-21 |
| CN108562707B true CN108562707B (en) | 2023-10-13 |
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| CN201810265283.0A Active CN108562707B (en) | 2018-03-28 | 2018-03-28 | Water quality monitoring probe protection structure of self-adaptation water level degree of depth |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112684139B (en) * | 2020-12-23 | 2022-11-11 | 英凯仪器技术(深圳)有限公司 | Online intelligent water quality monitoring system |
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| JPH1183601A (en) * | 1997-09-05 | 1999-03-26 | Furukawa Electric Co Ltd:The | Liquid level gauge and ground immersional wetting level measuring equipment using the same |
| KR100714402B1 (en) * | 2006-11-14 | 2007-05-15 | 곽정필 | Apparatus for sensing precipitation density of sludge in waste water treatment tank |
| CN201573863U (en) * | 2009-11-05 | 2010-09-08 | 中电电气集团有限公司 | Buoyancy sealing device |
| CN202511886U (en) * | 2012-03-02 | 2012-10-31 | 上海大学 | Novel float bowl for ocean temperature measurement |
| WO2013102658A1 (en) * | 2012-01-06 | 2013-07-11 | Societe Technique Pour L'energie Atomique Technicatome | Liquid level sensor with free float |
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| CN208043805U (en) * | 2018-03-28 | 2018-11-02 | 浙江大学昆山创新中心 | A kind of water quality monitoring probe protecting structure of adaptive water level depth |
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2018
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| JPH1183601A (en) * | 1997-09-05 | 1999-03-26 | Furukawa Electric Co Ltd:The | Liquid level gauge and ground immersional wetting level measuring equipment using the same |
| KR100714402B1 (en) * | 2006-11-14 | 2007-05-15 | 곽정필 | Apparatus for sensing precipitation density of sludge in waste water treatment tank |
| CN201573863U (en) * | 2009-11-05 | 2010-09-08 | 中电电气集团有限公司 | Buoyancy sealing device |
| WO2013102658A1 (en) * | 2012-01-06 | 2013-07-11 | Societe Technique Pour L'energie Atomique Technicatome | Liquid level sensor with free float |
| CN202511886U (en) * | 2012-03-02 | 2012-10-31 | 上海大学 | Novel float bowl for ocean temperature measurement |
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| CN205210014U (en) * | 2015-11-06 | 2016-05-04 | 李志勇 | Float fixed dual -purpose type water quality monitoring device |
| CN207050808U (en) * | 2017-10-24 | 2018-02-27 | 中国煤炭地质总局水文地质局 | A kind of probe-protecting device for universal meter lining rope water-level observation |
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| CN108562707A (en) | 2018-09-21 |
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