CN110967460A - Underwater antifouling electronic nasal cavity chamber - Google Patents
Underwater antifouling electronic nasal cavity chamber Download PDFInfo
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- CN110967460A CN110967460A CN201911124262.8A CN201911124262A CN110967460A CN 110967460 A CN110967460 A CN 110967460A CN 201911124262 A CN201911124262 A CN 201911124262A CN 110967460 A CN110967460 A CN 110967460A
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- 230000003373 anti-fouling effect Effects 0.000 title claims abstract description 12
- 210000003928 nasal cavity Anatomy 0.000 title claims description 16
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 210000001331 nose Anatomy 0.000 claims description 28
- 230000007704 transition Effects 0.000 claims description 19
- 230000004323 axial length Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 244000005700 microbiome Species 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 2
- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 235000020639 clam Nutrition 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000013535 sea water Substances 0.000 description 5
- 210000003135 vibrissae Anatomy 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 241000206761 Bacillariophyta Species 0.000 description 4
- 241000237519 Bivalvia Species 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011664 nicotinic acid Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000008786 sensory perception of smell Effects 0.000 description 2
- 230000035943 smell Effects 0.000 description 2
- 230000036528 appetite Effects 0.000 description 1
- 235000019789 appetite Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 210000000196 olfactory nerve Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 206010041232 sneezing Diseases 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- 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
- G01N33/0001—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 by organoleptic means
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
An underwater antifouling electronic nose cavity belongs to the technical field of mechanical engineering, and is characterized in that a filter screen I, a cavity I, a spoiler I, an arc sphere, a spoiler II, a cavity II and a filter screen II are sequentially arranged from left to right and are of a symmetrical structure about an a-a cross section, wherein the filter screen I is fixedly connected to the near left part of a collection port in the cavity I, and the filter screen II is fixedly connected to the near right part of the collection port in the cavity II; the inner end of a round rod of the spoiler I is fixedly connected to the left end of the center of the arc spherical shell of the arc sphere, and the inner end of a round rod of the spoiler II is fixedly connected to the right end of the center of the arc spherical shell of the arc sphere; the left surface of the outer ring of the arc ball body is fixedly connected with the right end of the chamber I, and the right surface of the outer ring of the arc ball body is fixedly connected with the left end of the chamber II; the invention can effectively avoid the attachment of marine microorganisms, can guide the liquid to be detected to reach the surface of the sensor, has high detection precision and detection efficiency, simple structure, long service life, convenient installation, low cost and easy popularization.
Description
Technical Field
The invention belongs to the technical field of mechanical engineering, and particularly relates to an underwater antifouling electronic nose cavity.
Background
With the continuous development of the economic and scientific levels, the demands of people on materials and energy are continuously expanded, and the development of ocean resources is gradually deepened along with the progress of the scientific and technological levels. However, in the process of ocean development, the ocean pollution is serious due to a series of unreasonable human activities, so that the monitoring of the ocean water quality is extremely important.
The electronic nose, also called artificial olfaction, is widely regarded for its advantages of long service life, simple operation, small volume, low cost, capability of qualitative and quantitative measurement, capability of realizing in-situ, on-line and real-time measurement, etc. The electronic nose is regarded as the solution of the most developing prospect of olfaction simulation. At present, main research on the electronic nose focuses on the aspects of gas sensor array arrangement mode, signal preprocessing program, mode identification method and the like. The electronic nose chamber is the hardware of the electronic nose and also is the carrier of the sensor, and the structural reasonableness of the electronic nose chamber has great influence on the flow mode of the fluid and the overall detection capability of the electronic nose.
The nasal hair in the nasal cavity can block dust and bacteria in the air, and can completely block large particles larger than PM 50 and the like, so that a human body can inhale filtered clean air; the nose hair can protect the olfactory nerve from being damaged, so that the nose can smell various smells, and the food fragrance is transmitted to the brain to increase the appetite; when larger foreign bodies, such as bugs, enter the nasal cavity, the nose hair not only blocks but also transmits information to the nervous system, causing sneezing and removing them.
The surface of the Japanese microscope clam is of a regular corrugated structure, the texture of the growth line is clear, no obvious radioactive ray texture exists, and a plurality of fine scales exist on the texture of the growth line. The theory of adsorption points proposed by acardino suggests that: microorganisms tend to attach to areas where the surface texture is larger in size than their body size, and the attachment rate is low when the surface microtexture is smaller in size than their body size. Diatoms are one of the most common small fouling organisms, ranging from a few micrometers to tens of micrometers in size, larger than the small scale size of the surface texture of the Japanese clams, and therefore, diatoms do not easily adhere to the Japanese clams. Because the formation of the microbial mucosa mainly containing diatoms is a prerequisite for the attachment of large fouling organisms, the surfaces of the Japanese microscope clams do not have diatoms attached, and larvae, zoospores and the like of other large fouling organisms lose the attachment foundation on the surfaces of the Japanese microscope clams.
Inspired by two bionic prototypes, namely the nasal cavity and the Japanese microscope clam, the bionic electronic nose is reasonably applied to the cavity structure design of the electronic nose, so that the pollution prevention of the cavity of the electronic nose can be effectively realized, and the detection precision of the electronic nose is improved.
Disclosure of Invention
The invention aims to provide a reasonable underwater electronic nose structure, which can improve the precision of seawater detection and the service life of the electronic nose, and reduce the attachment of marine microorganisms in an electronic nose cavity by utilizing the blocking effect of a nasal cavity on particles and the surface antifouling structure of a lens clam.
The invention comprises a cavity IA, a spoiler IB, an arc sphere C, a spoiler IID, a cavity IIE, a filter screen I1 and a filter screen II 2, wherein the filter screen I1, the cavity IA, the spoiler IB, the arc sphere C, the spoiler IID, the cavity IIE and the filter screen II 2 are sequentially arranged from left to right and are of a symmetrical structure relative to an a-a cross section, the filter screen I1 is fixedly connected to the near left part of a collection port 3 in the cavity IA, and the filter screen II 2 is fixedly connected to the near right part of the collection port in the cavity IIE; the inner end of a round rod 6 of the spoiler IB is fixedly connected to the left end of the center of the arc spherical shell 10 of the arc spherical body C, and the inner end of a round rod of the spoiler IID is fixedly connected to the right end of the center of the arc spherical shell 10 of the arc spherical body C; the left side of the outer ring 8 of the arc sphere C is fixedly connected with the right end of the cavity IA, and the right side of the outer ring 8 of the arc sphere C is fixedly connected with the left end of the cavity IIE.
The chamber IA and the chamber IIE have the same structure and opposite directions, and are respectively provided with an acquisition port 3, a transition section 4 and a detection section 5, wherein the acquisition port 3 is arranged between ab connecting lines in the peripheral contour lines of the chamber IA and the chamber IIE, the transition section 4 is arranged between bc connecting lines, and the detection section 5 is arranged between cd connecting lines; thickness d of the acquisition opening 3, the transition section 4 and the detection section 51Is 4-6 mm; the collection port 3 is a round pipe with an inner diameter D130-40mm, length L1Is 30-40 mm; the detection section 5 is a round pipe with an inner diameter D2Is 80-90mm, and has a length L378-85mm, length L of transition section 4275-85mm, one end of the transition section 4 is smoothly connected with the acquisition port 3, and the other end of the transition section 4 is smoothly connected with the detection section 5.
The left spoiler B and the right spoiler D are identical in structure and opposite in direction, and both consist of a round rod 6 and a conical body sheet group 7, wherein the conical body sheet group 7 consists of four conical body sheets, and the four conical body sheets are uniformly distributed and fixedly connected to the circumference of one end of the round rod 6; diameter D of round bar 63Is 5-7mm, and has a length L4Is 35-45 mm; the outer end of the cone-shaped body piece is a circular arc line with the radius r130-35mm, axial length L of the conical body sheet518-22mm, the radial length L of the cone-shaped piece7Is 18-22mm, and the lower conical bottom surface L of the conical body piece64-6mm, and the taper is 1: 20.
The arc sphere C consists of an outer ring 8, a connector group 9, an arc spherical shell 10 and a sensor group 11, wherein the outer ring 8 is a circular ring body, and the diameter D of the outer ring 8485-95mm, thickness d2Is 4-6mm, and has a width L810-15 mm; the shell 10 is formed by an inner ring 15 and a pair of arc surfaces 14, the diameter D of the inner ring 155Is 65-85mm in thickness d3Is 3-5mm, and has a width L910-15 mm; the arc surface pair 14 is composed of a left arc surface and a right arc surface, the left arc surface and the right arc surface are in the same structure and opposite directions,four through grooves of the through groove group 13 are uniformly distributed on the left cambered surface and the right cambered surface by taking the axis as the central line, and the groove lengths L of the four through grooves1011-13mm, groove width L1110-12mm, wall thickness d4Is 3-5 mm; radius r of left cambered surface and right cambered surface2Are all 45-55mm and have circular arc angle ∠1Are all 90 degrees; clearance 12h between the outer ring surface of the inner ring 15 and the inner ring of the outer ring 814-6mm, the connecting body group 9 comprises three cylinders and a torus, the three cylinders and the torus are uniformly distributed in a gap 12 between the inner ring 15 and the outer ring 8, and the diameter D of each cylinder65-8mm, inner diameter D of the torus72-3 mm; the sensor group 11 consists of 4 sensors which are respectively and fixedly connected in four through grooves of the through groove group 13; the inner ring of the outer ring 8 is fixedly connected with the outer ring of the inner ring 15 in the spherical shell 10 through the three cylinders of the connecting body group 9.
The filter screen I1 and the filter screen II 2 have the same structure and opposite directions, the inward surface is a plane, the outward surface is a wavy surface, and a single wave is formed by a radius r32.8-3.2mm, and a circular arc angle ∠2Arc with radius r of 45-50 degrees40.8-1.2mm, and a circular arc angle ∠3Arc with 70-75 degrees and radius r50.1-0.3mm, and a circular arc angle ∠4130-135 degrees, the thickness d of the filter screen I1 and the filter screen II 252-3mm, the mesh number of the mesh openings is 100-200 meshes.
Regular triangle bulges are arranged on the inner surfaces of the detection sections 5 of the cavity IA and the cavity IIE and the left and right cambered surfaces of the cambered spherical shell 10 in the cambered spherical body C, and the height h of the bulges20.03-0.05 mm; the bulges are uniformly distributed on the circumference of the inner surface of the detection section 5 of the cavity IA and the cavity IIE and are arranged in parallel along the axial direction; the bulges are distributed radially on the left cambered surface and the right cambered surface of the cambered spherical shell 10 in the cambered spherical body C by taking the center of the cambered surfaces as the origin.
The principle and the working process of the invention are as follows:
the invention is arranged at the bank of the sea and fixed at the bank side, ensures that the two ends of the electronic nose can realize the intercommunication of seawater from the two ends of the cavity under the action of tide, and simulates the process of inhaling and exhaling through the nasal cavity.
According to the invention, by simulating the barrier effect of vibrissa on particles such as dust, bacteria and the like, the filter screen is arranged at the inlet of the front end of the electronic nasal cavity, the front end of the electronic nasal cavity is processed into a wave shape, when fluid is washed, eddy current is generated at the notch, the attachment of marine microorganisms is effectively reduced, micro-current is applied at the filter screen, the smoothness of an electronic nasal channel is further ensured, and the microorganisms are prevented from entering the cavity; according to the fact that the nose hair in the nasal cavity has a certain flow guiding effect on air, the meshes of the filter screen are reasonably designed and distributed, and the detection efficiency of the sensor is improved; the two ends of the design are of symmetrical structures, the processes of air suction and air exhalation of the nasal cavity are simulated along with the back-and-forth action of seawater, particles blocked during air suction can be discharged out of a channel of the electronic nose during air exhalation, and the smoothness of a collecting port is ensured; the inner wall of the electronic nose simulates the microstructure of the surface of the Japanese microscope clam, and the inner wall is designed with a tiny triangular bulge, so that the attachment and the multiplication of microorganisms entering the cavity are greatly avoided, and the normal work of the sensor is ensured. In order to ensure the detection precision of the sensor and avoid microorganisms from being attached to a probe of the sensor, two spoilers are arranged at two ends of the arc sphere, so that the water flows through the spoilers when passing through the arc sphere, on one hand, the liquid to be detected flows into a groove of the arc sphere more sufficiently, on the other hand, the turbulent flow of the water flow is caused, the attachment of the microorganisms is avoided, and in the processes of 'inhaling' and 'exhaling' of the nasal cavity, the flow direction of the liquid is changed, and the attachment of the microorganisms is also hindered.
When liquid enters from one end of the electronic nose, the liquid enters the cavity through the meshes of the filter screen, particulate matters, impurities and microorganisms in the liquid are blocked on one side of the filter screen under the action of the filter screen, the liquid ensures a certain flow velocity to enter the cavity of the electronic nose under the flow guide action of the filter screen, the microorganisms are prevented from attaching to the sensor probe under the action of the spoiler, and the liquid flow at the detection end is improved; for microorganisms with very small volume, after entering the cavity, because the inner wall of the cavity is provided with the triangular bulge imitating the Japanese clam, the attachment of the microorganisms can be greatly avoided, and the microorganisms flow out from the other port along with the scouring action of water flow, so that the detection precision of the sensor is ensured; under the action of tide, after one-time detection, seawater enters from the other end of the electronic nose and flows out from the initial port, and particles and the like at the port are flushed out of the electronic nose channel, so that the self-cleaning effect is achieved.
The filter screen I1 and the filter screen II 2 are arranged at the front end and the rear end of the electronic nasal passage, the wavy surfaces of the filter screens can cause eddy current of water flow to reduce the attachment of microorganisms, and micro-current is applied to the filter screens to further reduce the attachment of the microorganisms; a tiny triangular bulge is designed on the inner wall of the electronic nasal cavity chamber detection section and the cambered surface of the cambered sphere C, so that the attachment of microorganisms is reduced; under the effect of left spoiler B and right spoiler D, the liquid that awaits measuring that is close to the sensor is disturbed, makes the liquid flow who reachs the sensor increase, and the turbulence degree of the liquid that awaits measuring increases, and this can not only increase the contact time of the liquid that awaits measuring and sensor surface, can also avoid the microorganism to adhere to the surface at the sensor to make the detection of sensor more stable accurate.
The invention can effectively improve the detection accuracy and the service life of the sensor in the seawater, the symmetrical structure, the filter screen and the internal self-cleaning function can greatly avoid the attachment of marine microorganisms, the detection accuracy of the sensor can be improved under the action of the filter screen and the spoiler, and the invention has the advantages of simple structure, convenient installation, low cost and easy popularization.
Drawings
FIG. 1 is a schematic view of the structure of an underwater antifouling electronic nose chamber
FIG. 2 is a cross-sectional view of a chamber
FIG. 3 is a spoiler elevation view
FIG. 4 is a left side view of a spoiler
FIG. 5 is a front view of an arc sphere
FIG. 6 is a left side view of an arc sphere
FIG. 7 is a side view of an arc spherical shell
FIG. 8 is a cross-sectional view of an arc spherical shell
FIG. 9 is a side view of a screen
FIG. 10 is an enlarged view of the wave structure (e) of the strainer
FIG. 11 is a cross-sectional view of an electronic nasal cavity
FIG. 12 is an enlarged sectional view of the inner wall structure (f)
FIG. 13 is a top view of an N-way inner wall structure
Wherein: A. chamber IB, spoiler IC, arc ball D, spoiler IIE, chamber II 1, filter screen I2, filter screen II 3, acquisition port 4, transition section 5, detection section 6, round rod 7, cone-shaped body group 8, outer ring 9, connector group 10, arc ball shell 11, sensor group 12, gap 13, channel group 14, arc group 15, inner ring group 15
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figure 1, the invention comprises a chamber IA, a spoiler IB, an arc sphere C, a spoiler IID, a chamber IIE, a filter screen I1 and a filter screen II 2, wherein the filter screen I1, the chamber IA, the spoiler IB, the arc sphere C, the spoiler IID, the chamber IIE and the filter screen II 2 are sequentially arranged from left to right and have a symmetrical structure about an a-a cross section, the filter screen I1 is fixedly connected to the near left part of a collection port 3 in the chamber IA, and the filter screen II 2 is fixedly connected to the near right part of the collection port in the chamber IIE; the inner end of a round rod 6 of the spoiler IB is fixedly connected to the left end of the center of the arc spherical shell 10 of the arc spherical body C, and the inner end of a round rod of the spoiler IID is fixedly connected to the right end of the center of the arc spherical shell 10 of the arc spherical body C; the left side of the outer ring 8 of the arc sphere C is fixedly connected with the right end of the cavity IA, and the right side of the outer ring 8 of the arc sphere C is fixedly connected with the left end of the cavity IIE.
As shown in fig. 1 and 2, the chamber ia and the chamber ie have the same structure and opposite directions, and are provided with an acquisition port 3, a transition section 4 and a detection section 5, wherein the acquisition port 3 is arranged between ab connecting lines in the peripheral contour lines of the chamber ia and the chamber ie, the transition section 4 is arranged between bc connecting lines, and the detection section 5 is arranged between cd connecting lines; thickness d of the acquisition opening 3, the transition section 4 and the detection section 51Is 4-6 mm; the collection port 3 is a round pipe with an inner diameter D130-40mm, length L1Is 30-40 mm; the detection section 5 is a round pipe with an inner diameter D2Is 80-90mm, and has a length L378-85mm, length L of transition section 4275-85mm, one end of the transition section 4 is smoothly connected with the acquisition port 3, and the other end of the transition section 4 is smoothly connected with the detection section 5.
As shown in figures 1, 3 and 4, the left spoiler B and the right spoiler D have the same structure and the same directionThe conical body group 7 consists of four conical body pieces, and the four conical body pieces are uniformly distributed and fixedly connected to the circumference of one end of the round rod 6; diameter D of round bar 63Is 5-7mm, and has a length L4Is 35-45 mm; the outer end of the cone-shaped body piece is a circular arc line with the radius r130-35mm, axial length L of the cone body piece518-22mm, the radial length L of the cone-shaped piece7Is 18-22mm, and the lower conical bottom surface L of the conical body piece64-6mm, and the taper is 1: 20.
As shown in fig. 5 to 8, the arc sphere C is composed of an outer ring 8, a connector set 9, an arc sphere shell 10 and a sensor set 11, the outer ring 8 is a circular ring, and the diameter D of the outer ring 8485-95mm, thickness d2Is 4-6mm, and has a width L810-15 mm; the shell 10 is formed by an inner ring 15 and a pair of arc surfaces 14, the diameter D of the inner ring 155Is 65-85mm in thickness d3Is 3-5mm, and has a width L910-15 mm; the arc surface pair 14 is composed of a left arc surface and a right arc surface, the left arc surface and the right arc surface have the same structure and opposite directions and are respectively fixedly connected to the left surface and the right surface of the inner ring 15, four through grooves of the through groove group 13 are uniformly distributed on the left arc surface and the right arc surface by taking the axis as the central line, and the groove length L of the four through grooves1011-13mm, groove width L1110-12mm, wall thickness d4Is 3-5 mm; radius r of left cambered surface and right cambered surface2Are all 45-55mm and have circular arc angle ∠1Are all 90 degrees; clearance 12h between the outer ring surface of the inner ring 15 and the inner ring of the outer ring 814-6mm, the connecting body group 9 comprises three cylinders and a torus, the three cylinders and the torus are uniformly distributed in a gap 12 between the inner ring 15 and the outer ring 8, and the diameter D of each cylinder65-8mm, inner diameter D of the torus72-3 mm; the sensor group 11 consists of 4 sensors which are respectively and fixedly connected in four through grooves of the through groove group 13; the inner ring of the outer ring 8 is fixedly connected with the outer ring of the inner ring 15 in the spherical shell 10 through three cylinders of the connector group 9.
As shown in figures 1, 9 and 10, the filter I1 and the filter II 2 have the same structure and opposite directions, the inward surface is a plane, the outward surface is a wave-shaped surface, and a single wave has a radius r32.8-3.2mm, and a circular arc angle ∠2Is 45 ofArc of degree-50 degree and radius r40.8-1.2mm, and a circular arc angle ∠3Arc with 70-75 degrees and radius r50.1-0.3mm, and a circular arc angle ∠4130-135 degrees, the thickness d of the filter screen I1 and the filter screen II 252-3mm, the mesh number of the mesh openings is 100-200 meshes.
As shown in fig. 11 to 13, regular triangle protrusions are arranged on the inner surfaces of the detection sections 5 of the chamber ia and the chamber ie and the left and right arc surfaces of the arc spherical shell 10 in the arc spherical body C, and the height h of the protrusions20.03-0.05 mm; the bulges are uniformly distributed on the circumference of the inner surface of the detection section 5 of the cavity IA and the cavity IIE and are arranged in parallel along the axial direction; the bulges are distributed radially on the left cambered surface and the right cambered surface of the cambered spherical shell 10 in the cambered spherical body C by taking the center of the cambered surfaces as the origin.
Claims (6)
1. An underwater antifouling electronic nose cavity is characterized by consisting of a cavity I (A), a spoiler I (B), an arc ball body (C), a spoiler II (D), a cavity II (E), a filter screen I (1) and a filter screen II (2), wherein the filter screen I (1), the cavity I (A), the spoiler I (B), the arc ball body (C), the spoiler II (D), the cavity II (E) and the filter screen II (2) are sequentially arranged from left to right and are of a symmetrical structure about an a-a cross section, the filter screen I (1) is fixedly connected to the near left part of a collecting port (3) in the cavity I (A), and the filter screen II (2) is fixedly connected to the near right part of the collecting port in the cavity II (E); the inner end of a round rod (6) of the spoiler I (B) is fixedly connected to the left end of the center of an arc spherical shell (10) of the arc spherical body (C), and the inner end of a round rod of the spoiler II (D) is fixedly connected to the right end of the center of the arc spherical shell (10) of the arc spherical body (C); the left side of the outer ring (8) of the arc sphere (C) is fixedly connected with the right end of the chamber I (A), and the right side of the outer ring (8) of the arc sphere (C) is fixedly connected with the left end of the chamber II (E).
2. The underwater antifouling electronic nose chamber as claimed in claim 1, wherein the chamber i (a) and the chamber ii (E) have the same structure and opposite directions, and are provided with a collection port (3), a transition section (4) and a detection section (5), the collection port (3) is arranged between ab connecting lines in the peripheral contour lines of the chamber i (a) and the chamber ii (E), the transition section (4) is arranged between bc connecting lines, and the detection section (5) is arranged between cd connecting lines; acquisition port (3), transition section (4) and detection section(5) Thickness d of1Is 4-6 mm; the collection port (3) is a round pipe with an inner diameter D130-40mm, length L1Is 30-40 mm; the detection section (5) is a round pipe with an inner diameter D2Is 80-90mm, and has a length L378-85mm, the length L of the transition section (4)275-85mm, one end of the transition section (4) is smoothly connected with the acquisition port (3), and the other end of the transition section (4) is smoothly connected with the detection section (5).
3. The underwater antifouling electronic nose chamber as claimed in claim 1, wherein the left spoiler (B) and the right spoiler (D) have the same structure and opposite directions and are composed of a round bar (6) and a conical body sheet group (7), the conical body sheet group (7) is composed of four conical body sheets, and the four conical body sheets are uniformly distributed and fixedly connected to the circumference of one end of the round bar (6); diameter D of round bar (6)3Is 5-7mm, and has a length L4Is 35-45 mm; the outer end of the cone-shaped body piece is a circular arc line with the radius r130-35mm, axial length L of the cone body piece518-22mm, the radial length L of the cone-shaped piece7Is 18-22mm, and the lower conical bottom surface L of the conical body piece64-6mm, and the taper is 1: 20.
4. The underwater antifouling electronic nasal cavity according to claim 1, characterised in that the sphere (C) consists of an outer ring (8), a connector group (9), a sphere housing (10) and a sensor group (11), the outer ring (8) is a torus, and the diameter D of the outer ring (8) is485-95mm, thickness d2Is 4-6mm, and has a width L810-15 mm; the spherical shell (10) is composed of an inner ring (15) and an arc surface pair (14), the diameter D of the inner ring (15)5Is 65-85mm in thickness d3Is 3-5mm, and has a width L910-15 mm; the arc surface pair (14) consists of a left arc surface and a right arc surface, the left arc surface and the right arc surface have the same structure and the opposite direction and are respectively and fixedly connected with the left surface and the right surface of the inner ring (15), four through grooves of the through groove group (13) are uniformly distributed on the left arc surface and the right arc surface by taking the axis as the central line, and the groove lengths L of the four through grooves1011-13mm, groove width L1110-12mm, wall thickness d4Is 3-5 mm; radius r of left cambered surface and right cambered surface2Are all 45-55mm and have circular arc angle ∠1Are all 90 degrees; outer ring of inner ring (15)The width h of the gap (12) between the surface and the inner ring of the outer ring (8)1Is 4-6mm, the connecting body group (9) comprises three cylinders and a torus, the three cylinders and the torus are uniformly distributed in a gap (12) between the inner ring (15) and the outer ring (8), and the diameter D of each cylinder65-8mm, inner diameter D of the torus72-3 mm; the sensor group (11) consists of 4 sensors which are respectively and fixedly connected in four through grooves of the through groove group (13); the inner ring of the outer ring (8) is fixedly connected with the outer ring of the inner ring (15) in the spherical shell (10) through three cylinders of the connecting body group (9).
5. An underwater antifouling electronic nasal cavity according to claim 1 characterised in that the screens i (1) and ii (2) are of the same configuration but in opposite directions, with the inward facing surface being planar and the outward facing surface being "wavy", wherein a single wave extends from radius r32.8-3.2mm, and a circular arc angle ∠2Arc with radius r of 45-50 degrees40.8-1.2mm, and a circular arc angle ∠3Arc with 70-75 degrees and radius r50.1-0.3mm, and a circular arc angle ∠4130-135 degrees, the thickness d of the filter screen I (1) and the filter screen II (2)52-3mm, the mesh number of the mesh openings is 100-200 meshes.
6. The underwater antifouling electronic nose chamber as claimed in claims 2 and 4, wherein regular triangle protrusions are arranged on the inner surface of the detection section (5) of the chamber I (A) and the chamber II (E) and the left and right arc surfaces of the arc spherical shell (10) in the arc spherical body (C), and the protrusion height h is20.03-0.05 mm; the bulges are uniformly distributed on the circumference of the inner surface of the detection section (5) of the chamber I (A) and the chamber II (E) and are arranged in parallel along the axial direction; the bulges are distributed radially on the left cambered surface and the right cambered surface of the cambered spherical shell (10) in the cambered sphere (C) by taking the center of the cambered surfaces as the origin.
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