CN214251991U - Non-contact cleaning structure for water quality sensor - Google Patents
Non-contact cleaning structure for water quality sensor Download PDFInfo
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- CN214251991U CN214251991U CN202120264792.9U CN202120264792U CN214251991U CN 214251991 U CN214251991 U CN 214251991U CN 202120264792 U CN202120264792 U CN 202120264792U CN 214251991 U CN214251991 U CN 214251991U
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- optical window
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- sensor optical
- water quality
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Abstract
The utility model relates to a non-contact washs structure for quality of water sensor belongs to quality of water sensor technical field, including spraying piece, feed liquor pipe and spread groove, spray the piece and include the nozzle, this nozzle passes through spread groove and feed liquor pipe intercommunication, and sensor optical window sets up on the injection route of nozzle, utilizes gas or liquid to wash sensor optical window surface. The utility model discloses can wash through the mode of no mechanical contact, avoid damaging sensor optical window, in addition, should wash the structure and integrate in the inside vacant space of quality of water sensor, compact structure, the fault rate is low.
Description
Technical Field
The utility model belongs to the technical field of the water quality sensor, in particular to a non-contact washs structure for water quality sensor.
Background
The water quality on-line monitoring technology can carry out real-time on-line monitoring on water sources such as rivers, reservoirs, oceans and the like, and is an important means for ensuring the water quality safety. In the current monitoring process, due to long-time online operation, a large number of interference objects such as plankton, algae and the like are easily attached to the surface of the optical window of the water quality sensor, the measurement precision of the sensor is reduced, and even the sensor is completely damaged. Therefore, the optical window of the water quality sensor needs to be cleaned and maintained regularly. Because the water quality sensor washs comparatively frequently, manual washing can very big increase the human cost, and can cause the vacuum phase of water quality sensor detection. In addition, because the optical window used by the water quality sensor has high transmittance, the traditional mechanical wiping cleaning method is easy to cause the defect of the optical window, thereby influencing the measurement precision.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a non-contact washs structure for water quality sensor, can effectively solve above-mentioned problem, effectively wash and can not cause the damage sensor optical window surface.
A non-contact cleaning structure for a water quality sensor comprises a sensor optical window, wherein the cleaning structure comprises a spraying block, a liquid inlet pipe and a connecting groove;
the jetting block comprises a nozzle; the nozzle is communicated with the liquid inlet pipe through the connecting groove; the sensor optical window is disposed on an ejection path of the nozzle.
Preferably, the nozzle is internally provided with a venturi structure.
Preferably, the liquid inlet pipe is of a venturi structure.
Preferably, the inlet end of the liquid inlet pipe comprises a pipe joint; the pipe joint is a pneumatic quick joint.
Preferably, the spraying path of the nozzle is inclined to the plane of the sensor optical window.
Preferably, the inclination angle of the spraying path of the nozzle and the plane of the sensor light window is 5-60 degrees.
Preferably, the angle of inclination of the spray path of the nozzle to the plane of the sensor optical window is 30 °.
Has the advantages that: a non-contact cleaning structure for a water quality sensor is characterized in that a cleaning mode of spraying cleaning gas or cleaning water through a nozzle is adopted for cleaning, direct mechanical contact is not formed between the non-contact cleaning structure and a sensor optical window, and compared with the traditional mechanical type cleaning, the non-contact cleaning structure does not damage the optical window. Meanwhile, the main cleaning structure is located in the vacant space inside the sensor, a mechanical cleaning device does not need to be attached externally, the size of the sensor is reduced, and compared with the traditional mechanical cleaning structure, the cleaning structure is simple in structure, low in failure rate, easy to manufacture and low in manufacturing cost. In addition, the nozzle and the liquid inlet pipe adopt a venturi structure, so that a certain self-pressurization effect is achieved, the requirement of a cleaning structure on cleaning water or cleaning air pressure is reduced, the risk of damage to an external pipeline is reduced to a certain extent, and the service life is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken at location A-A of FIG. 1;
FIG. 3 is a schematic structural diagram of a jetting block;
fig. 4 is a cross-sectional view taken at the position B-B in fig. 3.
In the figure, 1, a sensor optical window; 2. a sensor body; 3. a jetting block; 4. a nozzle; 5. a pipe joint; 6. a liquid inlet pipe; 7. connecting grooves; 8. a seal ring; 9. and (7) fixing holes.
Detailed Description
The invention will be further described with reference to the accompanying drawings, which are provided for illustration of specific embodiments of the invention and are not to be construed as in any way limiting the invention, as follows:
as shown in fig. 1 and with reference to fig. 2, a non-contact washing structure for a water quality sensor includes a spray block 3 provided to a sensor body 2. The jetting block 3 is located between two sensor optical windows 1 corresponding to each other. The sensor optical window 1 is located in the spray path of the nozzle 4 so that the gas or liquid sprayed by the nozzle 4 can flush clean the sensor optical window 1. The spraying path of the nozzle 4 and the plane where the sensor optical window 1 is located are arranged at a certain inclination angle, the inclination angle ranges from 5 degrees to 60 degrees, the preferred inclination angle is 30 degrees, and when the spraying path of the nozzle 4 and the plane where the sensor optical window 1 is located are 30 degrees, the cleaning effect of gas or liquid sprayed by the nozzle 4 on the sensor optical window 1 is better.
As shown in fig. 2, the liquid inlet pipe 6 and the connection groove 7 are both disposed inside the sensor body 2. The liquid inlet pipe 6 is of a venturi structure, the upper end of the liquid inlet pipe is communicated with the connecting groove 7, and the lower end of the liquid inlet pipe is fixed with the pipe joint 5. The upper part of the connecting groove 7 of the sensor body 2 is provided with a mounting groove (not shown in the figure), and the injection block 3 is adapted to the mounting groove and is placed in the mounting groove. An annular sealing gasket is arranged between the spraying block 3 and the mounting groove and used for sealing between the spraying block 3 and the connecting groove 7. The pipe joint 5 preferably adopts a pneumatic quick joint, so that the quick installation, connection and disassembly of the pipe joint and an external pipeline can be facilitated, the installation and maintenance convenience is improved, and meanwhile, the installation space is reduced.
As shown in fig. 3 and referring to fig. 4, the nozzle 4 has two nozzles, which are provided at both ends of the jet block 3, and the inside of the nozzle 4 is a venturi structure. The injector block 3 also has a fixing hole 9 for fixing the injector block 3 to the sensor body 2 by means of bolting.
When the device is used, gas or liquid enters the connecting groove 7 through the pipe joint 5 and the liquid inlet pipe 6 and is finally sprayed to the surface of the sensor optical window 1 through the nozzle 4 communicated with the connecting groove 7, and interferents such as plankton, algae and the like on the surface of the sensor optical window 1 are cleaned, so that the influence on water quality monitoring is reduced. Meanwhile, gas or liquid sprayed out of the nozzles 4 can form turbulent flow between the corresponding sensor optical windows 1, and the influence of interferents between the corresponding sensor optical windows 1 on monitoring is reduced.
Thus, it should be understood by those skilled in the art that while exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations and modifications can be made in accordance with the principles of the invention without departing from the spirit and scope of the invention, which is broadly defined and defined herein. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (7)
1. A non-contact cleaning structure for a water quality sensor comprises a sensor optical window (1), and is characterized in that the cleaning structure comprises a spraying block (3), a liquid inlet pipe (6) and a connecting groove (7);
the jet block (3) comprises a nozzle (4); the nozzle (4) is communicated with the liquid inlet pipe (6) through the connecting groove (7); the sensor optical window (1) is arranged on the spraying path of the nozzle (4).
2. The washing arrangement according to claim 1, characterized in that the nozzle (4) is internally of a venturi structure.
3. The washing arrangement according to claim 1, characterized in that the liquid inlet pipe (6) is a venturi structure.
4. The washing arrangement according to claim 1, characterized in that the inlet end of the liquid inlet pipe (6) comprises a pipe connection (5); the pipe joint (5) is a pneumatic quick joint.
5. The washing arrangement according to claim 1, characterized in that the spray path of the nozzles (4) is arranged obliquely to the plane of the sensor optical window (1).
6. The washing arrangement according to claim 5, characterized in that the spray path of the nozzle (4) is inclined by an angle in the range of 5 ° -60 ° to the plane of the sensor optical window (1).
7. The washing arrangement according to claim 5, characterized in that the spray path of the nozzles (4) is inclined at an angle of 30 ° to the plane of the sensor optical window (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120264792.9U CN214251991U (en) | 2021-01-30 | 2021-01-30 | Non-contact cleaning structure for water quality sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120264792.9U CN214251991U (en) | 2021-01-30 | 2021-01-30 | Non-contact cleaning structure for water quality sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214251991U true CN214251991U (en) | 2021-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120264792.9U Active CN214251991U (en) | 2021-01-30 | 2021-01-30 | Non-contact cleaning structure for water quality sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214251991U (en) |
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2021
- 2021-01-30 CN CN202120264792.9U patent/CN214251991U/en active Active
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