CN218382273U - Optical detection instrument lens purging system - Google Patents
Optical detection instrument lens purging system Download PDFInfo
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- CN218382273U CN218382273U CN202222676933.5U CN202222676933U CN218382273U CN 218382273 U CN218382273 U CN 218382273U CN 202222676933 U CN202222676933 U CN 202222676933U CN 218382273 U CN218382273 U CN 218382273U
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Abstract
The utility model relates to the technical field of optical detection instruments, a optical detection instrument lens purging system is disclosed, including sample cell, optical lens subassembly and purging system, the purging system includes the inlet channel who sets up on the sample cell, the one end of inlet channel is the inlet end, the inlet end is connected with second compressed air source, the outlet end of inlet channel is the purge hole that forms on the sample cell, the left and right sides of sample cell all is equipped with the purge hole, the purge direction in purge hole inclines towards optical lens; the utility model provides a pair of optical detection instrument lens purging system has solved when current sample cell takes place the lens and pollutes, the problem that the clearance is wasted time and energy.
Description
Technical Field
The utility model relates to an optical detection instrument technical field, concretely relates to optical detection instrument lens purging system.
Background
With the advance of factory intelligent projects, unattended operation, online detection and real-time analysis of process conditions of a production line become the first choice of factories, so that a new round of intelligent transformation is started for high-energy-consumption enterprises, and a laser particle size analyzer is rapidly popularized as a standard configuration for particle size detection, and online detection is particularly important. The laser particle analyzer can detect and analyze the particle size and the particle size distribution in real time, data can be transmitted into a DCS (distributed control System) of a factory in real time to help an operator to adjust related parameters, and the use of the laser particle analyzer can effectively reduce over-grinding, so that the productivity is improved.
Because the online laser particle analyzer is installed in a production field and is influenced by a series of factors such as compressed air pressure water content, oil content, vibration, material humidity and the like, the lenses can be polluted in different degrees, so that the background value of the laser particle analyzer is higher, the detection accuracy is influenced, and the working intensity of maintenance personnel is increased.
In order to solve the above problem, the prior utility model has a patent publication No. CN205015252U with a patent name of online laser granularity monitoring system, which specifically discloses: the testing part comprises an optical lens, and an air curtain protection device is arranged in front of the optical lens, namely an equidistant air inlet structure is arranged at the front end of the optical lens in a sample testing area of the testing part. An air curtain protection plate is arranged in front of the optical lens, and an air curtain air inlet and a plurality of air curtain air outlets are arranged on the air curtain protection plate. The sample enters the nozzle from the inlet by 0.3MPa compressed air and is sent into the testing area, if the air curtain protection device is not arranged, a part of the sample enters the area A perpendicular to the flow direction of the sample due to the action of turbulence, so that an optical lens is polluted, and the testing precision is influenced. The utility model discloses an after the air curtain protection device, let in 0.MPa's compressed air from the air curtain air inlet promptly, length gas circuit setting such as go on the air curtain protection shield, guarantee that the distance of air curtain air inlet and every air curtain gas outlet equals to the A region before optical lens forms malleation space, avoids the sample to get into A region, has guaranteed that optical lens can not be contaminated.
That is, the sample cell lens protection of current laser particle sizer relies on the air curtain before the lens completely, just compares a barrier wall, keeps off granule and dust in the front of the air curtain, ensures that the lens is not contaminated, and the advantage is when compressed air pressure, water content, the oil content that produce the air curtain all satisfy the operation requirement time, and the instrument lens can not be contaminated, can keep long-time operation. But the compressed air pressure when producing the air curtain is not enough, perhaps air supply interruption suddenly etc. all can lead to the lens to pollute, when present device takes place the lens and pollutes, then must carry out the lens dust clearance through artifical the dismantlement, wastes time and energy, and the single clearance needs about 30 minutes in the time of using, needs readjustment air curtain pressure after the clearance is accomplished. When production is abnormal and needs to be started and stopped frequently, the times of stopping compressed air are increased, lenses are easy to pollute during restarting, frequent cleaning is needed, and the labor intensity of workers is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an optical detection instrument lens purge system for solve at least one above-mentioned problem that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a lens purging system of an optical detection instrument comprises a sample pool, two optical lens assemblies and a purging system, wherein the two optical lens assemblies are symmetrically arranged on the left side and the right side of the sample pool, each optical lens assembly comprises an optical lens and an air curtain box, each air curtain box is provided with an air inlet and a plurality of air outlets circumferentially surrounding the inner side of the optical lens, the air inlet is connected with a first compressed air source, and air curtains are formed on the inner side of the optical lens under the air outlet state of the air outlets;
the blowing system comprises an air inlet channel arranged on the sample pool, one end of the air inlet channel is an air inlet end, the air inlet end is connected with a second compressed air source, the air outlet end of the air inlet channel is a blowing hole formed in the sample pool, the left side and the right side of the sample pool are both provided with blowing holes, and the blowing direction of the blowing holes inclines towards the optical lens.
Among this technical scheme, make the air current spout from the purge hole department when second compressed air source through inlet channel, the purge direction in purge hole inclines towards optical lens, and promptly, the purge hole has certain inclination, and the compressed air that the slope was blown off is after meetting optical lens, then can sweep optical lens's medial surface with the umbrella face shape, can sweep the dust attached to optical lens totally to when solving current sample cell and taking place the lens pollution, the problem that the clearance is wasted time and energy.
Further, in order to realize the installation to the sample cell structure, still include mounting panel and detection shell, mounting panel fixed mounting is in the top that detects the shell, the sample cell is installed inside the detection shell, the upper end of sample cell is equipped with the feed inlet, the lower extreme of sample cell is equipped with the discharge gate.
Furthermore, in order to ensure the smoothness of feeding and discharging in the sample cell, the feeding hole and the discharging hole are coaxially arranged.
Further, for the installation of better realization to optical lens subassembly and compressed air's input, optical lens subassembly's upper end is equipped with the air curtain intake pipe, air curtain intake pipe symmetry fixed mounting is on the mounting panel, the feed inlet is located between two air curtain intake pipes, the one end and the inlet port of air curtain intake pipe are connected, the other end and the first compressed air source of air curtain intake pipe are connected.
Further, for the convenience is with compressed air introduction inlet channel and follow purge hole department blowout, be equipped with the connector on the mounting panel, connector and the coaxial setting of feed inlet and the two intercommunication, be equipped with second air supply air inlet on the connector, second air supply air inlet is connected with second compressed air source, be equipped with the connecting pipe between mounting panel and the detection shell inside, the one end and the second air supply air inlet intercommunication of connecting pipe, the other end and the inlet channel intercommunication of connecting pipe.
Further, in order to generate a better purging effect on the optical lens, the angle of inclination of the purging hole relative to the vertical direction is ≥ a, and ≤ a =60 °.
Further, in order to generate a better purging effect on the optical lens, the angle between the central line of the purging hole and the axis B of the material channel is less than C, and less than C =30 degrees.
Furthermore, in order to timely discharge the dust cleaned from the optical lens, an air outlet is arranged below the air curtain and the optical lens.
Furthermore, in order to realize the control of opening and closing the generation of the purging gas, a second gas source pipeline is arranged between the second gas source gas inlet and a second compressed air source, and a gas flow regulating valve is arranged on the second gas source pipeline.
Furthermore, in order to monitor the flow of the purge gas flow, a gas flow meter is arranged on the second gas source pipeline.
The utility model has the advantages that: among this technical scheme, make the air current spout from the purge hole department when second compressed air source through inlet channel, the purge direction in purge hole inclines towards optical lens, and promptly, the purge hole has certain inclination, and the compressed air that the slope was blown off is after meetting optical lens, then can sweep optical lens's medial surface with the umbrella face shape, can sweep the dust attached to optical lens totally to when solving current sample cell and taking place the lens pollution, the problem that the clearance is wasted time and energy.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the position structure of the purge hole on the middle sample cell of the present invention.
In the figure: a sample cell 1; an optical lens assembly 2; an optical lens 2.1; an air curtain box 2.2; an air inlet 3; an air outlet 4; an intake passage 5; an air inlet end 6; a second compressed air source 7; a purge hole 8; a mounting plate 9; a detection housing 10; a feed port 11; a discharge port 12; an intake pipe 13; a connector 15; a second gas supply inlet 16; a connecting pipe 17; a second gas supply conduit 18; an air curtain 19.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the accompanying drawings is only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any inventive work. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
Example 1:
as shown in fig. 1 and fig. 2, the present embodiment provides a lens purging system for an optical detection instrument, including a sample cell 1, two optical lens assemblies 2 and a purging system, where the two optical lens assemblies 2 are symmetrically disposed on the left and right sides of the sample cell 1, each optical lens assembly 2 includes an optical lens 2.1 and an air curtain box 2.2, the air curtain box 2.2 is provided with an air inlet 3 and a plurality of air outlets 4 circumferentially surrounding the inner side of the optical lens 2.1, the air inlet 3 is connected to a first compressed air source, and an air curtain 19 is formed on the inner side of the optical lens 2.1 in an air outlet state of the air outlets 4;
the blowing system is including setting up inlet channel 5 on sample cell 1, and inlet channel 5's one end is inlet end 6, and inlet end 6 is connected with second compressed air source 7, and inlet channel 5's the end of giving vent to anger all is equipped with blowing hole 8 for forming the blowing hole 8 on sample cell 1 for forming on sample cell 1, the left and right sides of sample cell 1, and blowing hole 8's the orientation 2.1 slopes towards optical lens, and is more excellent, and blowing hole 8's aperture is 3mm.
Among this technical scheme, make the air current spout from blowing hole 8 through inlet channel 5 when second compressed air source 7, blowing hole 8 blow the direction and incline towards optical lens 2.1, that is, blowing hole 8 has certain inclination, the compressed air that the slope was blown off is meetting optical lens 2.1 back, then can blow with the medial surface of umbrella face shape to optical lens 2.1, can sweep the dust of adhering to on optical lens 2.1 totally, when taking place the lens pollution in order to solve current sample cell 1, the problem that the clearance was wasted time and energy.
Example 2:
this example was optimized based on example 1 described above.
In order to realize the installation to the structure of sample cell 1, still include mounting panel 9 and detection shell 10, mounting panel 9 fixed mounting is in the top of detecting shell 10, and sample cell 1 is installed inside detecting shell 10, and the upper end of sample cell 1 is equipped with feed inlet 11, and the lower extreme of sample cell 1 is equipped with discharge gate 12.
Example 3:
this example was optimized based on example 2 described above.
In order to ensure the smoothness of feeding and discharging in the sample cell 1, the feeding port 11 and the discharging port 12 are coaxially arranged.
Example 4:
this embodiment is optimized based on embodiment 2 described above.
For the installation of better realization to optical lens subassembly 2 and compressed air's input, optical lens subassembly 2's upper end is equipped with air curtain intake pipe 13, and air curtain intake pipe 13 symmetry fixed mounting is on mounting panel 9, and feed inlet 11 is located between two air curtain intake pipes 13, and the one end and the inlet port 3 of air curtain intake pipe 13 are connected, and the other end and the first compressed air source of air curtain intake pipe 13 are connected.
Example 5:
this embodiment is optimized based on embodiment 2 described above.
In order to conveniently introduce compressed air into the air inlet channel 5 and spray the compressed air from the blowing hole 8, a connector 15 is arranged on the mounting plate 9, the connector 15 is coaxially arranged with the feed inlet 11 and communicated with the feed inlet 11, a second air source air inlet 16 is arranged on the connector 15, the connection is excellent, a 6mm compressed air quick connector is arranged at the second air source air inlet 16, the second air source air inlet 16 is connected with the second compressed air source 7 through the 6mm compressed air quick connector, a connecting pipe 17 is arranged between the mounting plate 9 and the inside of the detection shell 10, one end of the connecting pipe 17 is communicated with the second air source air inlet 16, and the other end of the connecting pipe 17 is communicated with the air inlet channel 5.
Example 6:
this embodiment is optimized based on embodiment 1 described above.
In order to generate better blowing effect on the optical lens 2.1, the angle of inclination of the blowing hole 8 relative to the vertical direction is ≥ a, and ≤ a =60 °.
That is, in the design, the hole is formed obliquely downwards from the side surface of the sample cell 1, a jet of compressed air is blown towards the inner side of the optical lens 2.1, and the compressed air is blown downwards in a fan shape after meeting the optical lens 2.1, so that particles attached to the lens can be instantly blown clean.
Example 7:
this embodiment is optimized based on embodiment 1 described above.
In order to generate a better blowing effect on the optical lens 2.1, the angle between the central line of the blowing hole 8 and the axis B of the material channel is < C, and the angle is =30 degrees.
Example 8:
this example was optimized based on example 1 described above.
In order to discharge the dust cleaned from the optical lens 2.1 in time, an air outlet (not shown) is provided between the air curtain 19 and the optical lens 2.1.
Example 9:
this embodiment is optimized based on embodiment 5 described above.
In order to realize the opening and closing control of the generation of the purge gas, a second gas source pipeline 18 is arranged between the second gas source gas inlet 16 and the second compressed air source 7, and a gas flow regulating valve is arranged on the second gas source pipeline 18.
Example 10:
this embodiment is optimized based on embodiment 9 described above.
In order to enable monitoring of the flow of the purge gas stream, a gas flow meter is provided on the second gas source line 18.
In conclusion, the design can adjust the air pressure through the arrangement of the gas flow meter and the gas flow regulating valve, increase or reduce the air supply intensity and range, and ensure that dust attached to the optical lens is completely blown.
It should be noted that the gas flow meter and the gas flow regulating valve are respectively connected to the control system, the gas flow of the second gas source pipeline 18 is detected by the gas flow meter, and the gas flow of the second gas source pipeline 18 is regulated by the gas flow regulating valve.
It should be noted that, in the design, when the inner side of the optical lens 2.1 is polluted by dust, the control system controls the second compressed air source 7 to output compressed air, and the corresponding air flow regulating valve is opened at the same time, so that the optical lens 2.1 can be automatically cleaned, the labor intensity of field service personnel is reduced, the influence of starting and stopping the machine is avoided, the air source can be effectively saved, and the cost is reduced.
Preferably, the time length and the frequency of purging can be set according to actual needs until purging is clean.
The design also has the advantages of simple structure and easy operation. In the starting of the purging function, an operator in a central control room can determine whether to start or not according to the background value of the field laser particle analyzer, and can also automatically execute the purging function.
When the optical lens 2.1 is polluted by dust, the purging function is started, the downward-inclined purging gas flow can scrape away the dust on the optical lens 2.1 like a scraper, the dust is brought out from the air outlet by compressed air, and the pressure of the air curtain 19 on the inner side of the optical lens 2.1 is kept unchanged, so that the optical lens 2.1 can be cleaned quickly in time, and the labor intensity of maintenance personnel is reduced.
Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. 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 (10)
1. The utility model provides an optical detection instrument lens purge system which characterized in that: the air curtain device comprises a sample pool, two optical lens assemblies and a blowing system, wherein the two optical lens assemblies are symmetrically arranged on the left side and the right side of the sample pool, each optical lens assembly comprises an optical lens and an air curtain box, each air curtain box is provided with an air inlet and a plurality of air outlets circumferentially surrounding the inner side of the optical lens, the air inlet is connected with a first compressed air source, and the air curtains are formed on the inner sides of the optical lenses under the air outlet states of the air outlets;
the purging system comprises an air inlet channel arranged on the sample pool, one end of the air inlet channel is an air inlet end, the air inlet end is connected with a second compressed air source, an air outlet end of the air inlet channel is a purging hole formed in the sample pool, purging holes are formed in the left side and the right side of the sample pool, and the purging direction of the purging holes inclines towards the optical lens.
2. An optical inspection instrument lens purging system as claimed in claim 1, wherein: still include mounting panel and detection shell, mounting panel fixed mounting is in the top that detects the shell, the sample cell is installed inside detecting the shell, the upper end of sample cell is equipped with the feed inlet, the lower extreme of sample cell is equipped with the discharge gate.
3. An optical inspection instrument lens purging system as claimed in claim 2, wherein: the feed inlet and the discharge outlet are coaxially arranged.
4. An optical inspection instrument lens purging system as claimed in claim 2, wherein: the upper end of optical lens subassembly is equipped with the air curtain intake pipe, air curtain intake pipe symmetry fixed mounting is on the mounting panel, the feed inlet is located between two air curtain intake pipes, the one end and the inlet port of air curtain intake pipe are connected, the other end and the first compressed air source of air curtain intake pipe are connected.
5. An optical inspection instrument lens purging system as claimed in claim 2, wherein: be equipped with the connector on the mounting panel, connector and the coaxial setting of feed inlet and the two intercommunication, be equipped with second air supply air inlet on the connector, second air supply air inlet is connected with second compressed air source, be equipped with the connecting pipe between mounting panel and the detection shell is inside, the one end and the second air supply air inlet intercommunication of connecting pipe, the other end and the inlet channel intercommunication of connecting pipe.
6. An optical inspection instrument lens purging system as claimed in claim 1, wherein: the inclination angle of the purge hole relative to the vertical direction is < A, and < A =60 deg.
7. An optical inspection instrument lens purging system as claimed in claim 1, wherein: the angle between the central line of the blowing hole and the axis B of the material channel is less than C, and less than C =30 degrees.
8. An optical inspection instrument lens purging system as claimed in claim 1, wherein: an air outlet is arranged below the air curtain and the optical lens.
9. An optical inspection instrument lens purging system as claimed in claim 5, wherein: and a second air source pipeline is arranged between the second air source air inlet and a second compressed air source, and an air flow regulating valve is arranged on the second air source pipeline.
10. An optical inspection instrument lens purging system as claimed in claim 9, wherein: and a gas flowmeter is arranged on the second gas source pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222676933.5U CN218382273U (en) | 2022-10-11 | 2022-10-11 | Optical detection instrument lens purging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222676933.5U CN218382273U (en) | 2022-10-11 | 2022-10-11 | Optical detection instrument lens purging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218382273U true CN218382273U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222676933.5U Active CN218382273U (en) | 2022-10-11 | 2022-10-11 | Optical detection instrument lens purging system |
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| Country | Link |
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| CN (1) | CN218382273U (en) |
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- 2022-10-11 CN CN202222676933.5U patent/CN218382273U/en active Active
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