CN112945816A - Portable atmospheric particulates on-line monitoring equipment - Google Patents
Portable atmospheric particulates on-line monitoring equipment Download PDFInfo
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- CN112945816A CN112945816A CN202110128662.7A CN202110128662A CN112945816A CN 112945816 A CN112945816 A CN 112945816A CN 202110128662 A CN202110128662 A CN 202110128662A CN 112945816 A CN112945816 A CN 112945816A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 54
- 230000005494 condensation Effects 0.000 claims abstract description 36
- 238000009833 condensation Methods 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000012806 monitoring device Methods 0.000 claims description 15
- 239000012535 impurity Substances 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 claims 2
- 238000000926 separation method Methods 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 description 16
- 239000002245 particle Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003123 bronchiole Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000006467 substitution reaction 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
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/065—Investigating concentration of particle suspensions using condensation nuclei counters
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Abstract
The invention discloses portable atmospheric particulate online monitoring equipment which comprises a monitor body and a detection tube fixedly connected to the left side of the monitor body, wherein a handle is fixedly connected to the bottom of the monitor body, a control button is fixedly connected to the left side of the handle, a fixed seat is arranged at the top end of the detection tube, and a water vapor removal mechanism is arranged inside the detection tube. This portable atmospheric particulates on-line monitoring equipment, utilize the handle and the control button that set up, can portable operation atmospheric particulates on-line monitoring equipment, the first condensation separation blade of setting, first collection is fought and first drain pipe, it gets into first collection fill and discharges to utilize vapor to meet cold liquefaction for the little drop of water entering, second condensation separation blade simultaneously, second is collected and is fought and second drain pipe, get rid of a small amount of vapor, effectual few vapor of having avoided in the air gets into inside the monitor body, thereby lead to the problem that monitoring equipment damaged.
Description
Technical Field
The invention relates to the technical field of on-line monitoring equipment, in particular to portable atmospheric particulate on-line monitoring equipment.
Background
The method comprises the steps of monitoring various fine solid or liquid particles in the air, observing the activity of the sources, the distribution and the change of the fine solid or liquid particles, dividing the particles in the air into total suspended particles, inhalable particles and fine particles according to the diameter, wherein the smaller the particle size is, the deeper the part entering the respiratory tract of a human body is, for example, the particles with the particle size of below 2 microns can completely and directly enter the bronchioles and alveoli, so that the harm to the health of the human body is greater, and in order to prevent the harm of atmospheric pollution to the human body, the air particles need to be monitored in real time through monitoring equipment.
The conventional online monitoring equipment for the atmospheric particulates is large in size and inconvenient to carry, a small amount of water vapor in air can enter the inside of the monitor body during online monitoring, so that the monitoring equipment is damaged, and meanwhile, impurities in the air can enter the inside of the online monitoring equipment along with the air to influence the service life of the online monitoring equipment.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides portable atmospheric particulate online monitoring equipment, which solves the problems that the conventional atmospheric particulate online monitoring equipment is large in size and inconvenient to carry, and a small amount of water vapor and impurities in the air can enter the monitor body to influence the service life of the monitor body.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a portable atmospheric particulate online monitoring device comprises a monitor body and a detection tube fixedly connected to the left side of the monitor body in a communicating manner, wherein the bottom of the monitor body is fixedly connected with a handle, the left side of the handle is fixedly connected with a control button, the top end of the detection tube is provided with a fixed seat, a water vapor removing mechanism is arranged inside the detection tube, an impurity removing mechanism is arranged inside the fixed seat, and an installing mechanism is arranged between the fixed seat and the detection tube; mechanism is got rid of to steam includes the first condensation separation blade of fixed mounting in detection inside pipe wall bottom, the first collection of the left side fixedly connected with of first condensation separation blade is fought, the bottom intercommunication that first collection was fought has first calandria, the outside that the detection tube was run through and was extended to the detection tube to the bottom of first calandria, the top of detection inside pipe wall and the right side fixedly connected with second condensation separation blade that is located first condensation separation blade, the left side fixedly connected with second of second condensation separation blade is collected and is fought, the bottom intercommunication that the second was collected and is fought has the second drain pipe, the bottom of second drain pipe runs through the detection tube and extends to the outside of detection tube.
Preferably, the impurity removing mechanism comprises a connecting seat fixedly mounted at the bottom of the fixing seat, and a through shell which is arranged in a penetrating manner, the top of the connecting seat is provided with a vent hole in a penetrating manner, and the top of the connecting seat is fixedly connected with a driving motor.
Preferably, the output end of the driving motor is fixedly connected with a rotating shaft through a coupler, and the outer surface of the rotating shaft is fixedly connected with a sleeve.
Preferably, the outer surface of the sleeve is fixedly connected with a fan blade, and the outer surface of the fan blade is in contact with the inner wall of the fixed seat.
Preferably, the installation mechanism comprises a moving groove formed in the inner wall of the detection pipe, an arc-shaped groove is formed in the inner wall of the detection pipe and in communication with one side of the moving groove, and a clamping block is fixedly connected to the outer surface of the connecting seat.
Preferably, the outer surface of the clamping block is matched with the inner surface of the moving groove, the outer surface of the clamping block is connected with the inner surface of the arc-shaped groove in a sliding mode, and the inner wall of the detection tube is fixedly connected with a fixing ring under the connecting seat.
Preferably, the both sides of solid fixed ring inner wall all are seted up flutedly, two the equal sliding connection of internal surface of recess has the slide bar, the both ends of slide bar all run through solid fixed ring and extend to solid fixed ring's outside.
Preferably, the top fixedly connected with rubber sleeve of slide bar, and the top of rubber sleeve and the bottom contact of connecting seat, the surface cover of slide bar is equipped with reset spring, and reset spring's surface and the internal surface contact of recess.
(III) advantageous effects
The invention provides portable atmospheric particulate online monitoring equipment. Compared with the prior art, the method has the following beneficial effects:
(1) the portable atmospheric particulate online monitoring device comprises a monitor body, a handle is fixedly connected to the bottom of the monitor body, a control button is fixedly connected to the left side of the handle, a fixed seat is arranged at the top end of a detection tube, a water vapor removing mechanism is arranged inside the detection tube and comprises a first condensation blocking piece fixedly mounted at the bottom of the inner wall of the detection tube, a first collecting hopper is fixedly connected to the left side of the first condensation blocking piece, a first drainage pipe is communicated with the bottom of the first collecting hopper, the bottom end of the first drainage pipe penetrates through the detection tube and extends to the outside of the detection tube, a second condensation blocking piece is fixedly connected to the top of the inner wall of the detection tube and is positioned at the right side of the first condensation blocking piece, a second collecting hopper is fixedly connected to the left side of the second condensation blocking piece, a second drainage pipe is communicated with the bottom of the second collecting hopper, the bottom end of the second, utilize the handle and the control button that set up, can portable operation atmospheric particulates on-line monitoring equipment, the first condensation separation blade of setting, first collection fill and first drain pipe, utilize vapor to meet the liquefaction and get into first collection fill and discharge of little drop of water entering, second condensation separation blade simultaneously, second collection fill and second drain pipe, get rid of a small amount of vapor, effectual inside having avoided the little vapor entering monitor body in the air, thereby lead to the problem that monitoring equipment damaged.
(2) The portable atmospheric particulate online monitoring device is characterized in that an impurity removing mechanism is arranged in a fixed seat, the impurity removing mechanism comprises a connecting seat fixedly arranged at the bottom of the fixed seat and a through shell which is arranged in a penetrating way, the top of the connecting seat is provided with an air vent in a penetrating way, the top of the connecting seat is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a rotating shaft through a coupler, the outer surface of the rotating shaft is fixedly connected with a sleeve, the outer surface of the sleeve is fixedly connected with a fan blade, the outer surface of the fan blade is contacted with the inner wall of the fixed seat, the driving motor is arranged to provide power output, power is transmitted through the rotating shaft, the fan blade fixed on the outer surface of the sleeve rotates, so that the vortex formed by the fan blade plays a role of repulsion force on, the online monitoring device for the atmospheric particulates has a good protection effect.
(3) The portable atmospheric particulate online monitoring device comprises a fixed seat and a detection tube, wherein a mounting mechanism is arranged between the fixed seat and the detection tube, the mounting mechanism comprises a moving groove formed in the inner wall of the detection tube, one side of the inner wall of the detection tube, which is positioned on the moving groove, is communicated with an arc-shaped groove, the outer surface of the connection seat is fixedly connected with a fixture block, the outer surface of the fixture block is matched with the inner surface of the moving groove, the outer surface of the fixture block is in sliding connection with the inner surface of the arc-shaped groove, the inner wall of the detection tube is fixedly connected with a fixed ring under the connection seat, two sides of the inner wall of the fixed ring are respectively provided with a groove, the inner surfaces of the two grooves are respectively in sliding connection with a slide bar, two ends of the slide bar respectively penetrate through the fixed ring and, and reset spring's surface and the internal surface contact of recess utilize the fixture block and the shifting chute slip adaptation that set up on the connecting seat to it is fixed through fixture block and arc wall joint, utilize reset spring to compress at the internal surface of recess simultaneously, utilize reset spring's elasticity to make the rubber sleeve withstand the connecting seat, not only conveniently install and dismantle the fixing base, and stability is strong moreover.
Drawings
FIG. 1 is a front view of the internal structure of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is a top view of the internal structure of the impurity removing mechanism according to the present invention;
FIG. 4 is a perspective view of a portion of the structure of the mounting mechanism of the present invention;
FIG. 5 is a front elevational view of a portion of the construction of the mounting mechanism of the present invention.
In the figure, 1-a monitor body, 2-a detection tube, 3-a handle, 4-a control button, 5-a fixed seat, 6-a water vapor removing mechanism, 61-a first condensation baffle, 62-a first collecting hopper, 63-a first water discharging tube, 64-a second condensation baffle, 65-a second collecting hopper, 66-a second water discharging tube, 7-an impurity removing mechanism, 71-a connecting seat, 72-a vent hole, 73-a driving motor, 74-a rotating shaft, 75-a sleeve, 76-a fan blade, 8-an installation mechanism, 81-a moving groove, 82-an arc groove, 83-a fixture block, 84-a fixed ring, 85-a groove, 86-a sliding rod, 87-a rubber sleeve and 88-a reset spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: a portable atmospheric particulate online monitoring device comprises a monitor body 1 and a detection tube 2 which is fixedly communicated and arranged on the left side of the monitor body 1, the monitor body 1 adopts the existing atmospheric particulate detection technology, the bottom of the monitor body 1 is fixedly connected with a handle 3, the left side of the handle 3 is fixedly connected with a control button 4, the top end of the detection tube 2 is provided with a fixed seat 5, the interior of the detection tube 2 is provided with a vapor removing mechanism 6, the interior of the fixed seat 5 is provided with an impurity removing mechanism 7, the impurity removing mechanism 7 comprises a connecting seat 71 which is fixedly arranged on the bottom of the fixed seat 5 and is a through shell which is arranged in a penetrating way, the top of the connecting seat 71 is provided with a vent hole 72 in a penetrating way, the top of the connecting seat 71 is fixedly connected with a driving motor 73, the driving motor 73 is electrically, the outer surface of the rotating shaft 74 is fixedly connected with a sleeve 75, the outer surface of the sleeve 75 is fixedly connected with a fan blade 76, the outer surface of the fan blade 76 is contacted with the inner wall of the fixed seat 5, the arranged driving motor 73 is used for providing power output, power is transmitted through the rotating shaft 74, the fan blade 76 is fixed on the outer surface of the sleeve 75 to rotate, so that the vortex formed by the fan blade 76 plays a role of repulsion on impurities entering the detection tube 2, the connecting seat 71 and the vent hole 72 which are arranged simultaneously ensure the normal operation of the gas particle online monitoring equipment and play a good protection role on the atmospheric particle online monitoring equipment, the installation mechanism 8 is arranged between the fixed seat 5 and the detection tube 2, the installation mechanism 8 comprises a moving groove 81 arranged on the inner wall of the detection tube 2, one side of the inner wall of the detection tube 2, which is positioned on the moving groove 81, the outer surface of the fixture block 83 is matched with the inner surface of the moving groove 81, the outer surface of the fixture block 83 is connected with the inner surface of the arc-shaped groove 82 in a sliding manner, a fixing ring 84 is fixedly connected to the inner wall of the detection tube 2 and is positioned right below the connecting seat 71, two sides of the inner wall of the fixing ring 84 are provided with grooves 85, the inner surfaces of the two grooves 85 are connected with sliding rods 86 in a sliding manner, two ends of each sliding rod 86 penetrate through the fixing ring 84 and extend to the outside of the fixing ring 84, the top end of each sliding rod 86 is fixedly connected with a rubber sleeve 87, each rubber sleeve 87 can protect the connecting seat 71, the top end of each rubber sleeve 87 is in contact with the bottom end of the connecting seat 71, the outer surface of each sliding rod 86 is sleeved with a return spring 88, the outer surface of each return spring 88 is in contact with the inner surfaces of the grooves 85, meanwhile, the return spring 88 is compressed on the inner surface of the groove 85, and the rubber sleeve 87 is pressed against the connecting seat 71 by the elasticity of the return spring 88, so that the fixing seat 5 is convenient to mount and dismount, and the stability is high; the water vapor removing mechanism 6 comprises a first condensation blocking sheet 61 fixedly arranged at the bottom of the inner wall of the detection tube 2, the first condensation blocking sheet 61 is an existing condensation technology and can be replaced by a glass sheet, the left side of the first condensation blocking sheet 61 is fixedly connected with a first collecting hopper 62, the bottom of the first collecting hopper 62 is communicated with a first drainage tube 63, a valve is arranged on the first drainage tube 63, the bottom end of the first drainage tube 63 penetrates through the detection tube 2 and extends to the outside of the detection tube 2, the top of the inner wall of the detection tube 2 is fixedly connected with a second condensation blocking sheet 64 positioned at the right side of the first condensation blocking sheet 61, the second condensation blocking sheet 64 is an existing condensation technology and can be replaced by a glass sheet, the left side of the second condensation blocking sheet 64 is fixedly connected with a second collecting hopper 65, the bottom of the second collecting hopper 65 is communicated with a second drainage tube 66, a valve is arranged on the second drainage tube 66, the bottom end of the second drainage tube 66 penetrates through the detection tube 2 and extends to, utilize the handle 3 and the control button 4 that set up, can portable operation atmospheric particulates on-line monitoring equipment, the first condensation separation blade 61 that sets up, first collection fill 62 and first drain pipe 63, utilize vapor to meet the first collection of liquefaction drop of water entering into first collection fill 62 and discharge, second condensation separation blade 64 simultaneously, second collection fill 65 and second drain pipe 66, get rid of a small amount of vapor, effectual few vapor of having avoided in the air gets into inside the monitor body, thereby lead to the problem that monitoring equipment damaged.
And those not described in detail in this specification are well within the skill of those in the art.
When the device is used, firstly, the device is operated by the hand-held handle 3, then the control button 4 is pressed by fingers, the monitor body 1 is started by the control button 4, then the driving motor 73 is started, the rotating shaft 74 is driven to rotate through the driving motor 73, the rotating shaft 74 further drives the sleeve 75 to rotate, the sleeve 75 rotates to enable the fan blade 76 to rotate, the vortex formed by the rotation of the fan blade 76 plays a role of repulsion on impurities entering the detection tube 2, the connecting seat 71 and the vent hole 72 which are arranged simultaneously ensure the normal operation of the gas particle online monitoring device, the atmosphere particle online monitoring device is well protected, water vapor entering the detection tube 2 contacts with the first condensation blocking sheet 61 when passing through the first condensation blocking sheet, the water vapor is liquefied into small water beads when meeting cold, enters the first collection hopper 62 and is discharged through the first drainage tube 63, and a small amount of water vapor contacts with the second condensation blocking sheet 64 when passing through the second condensation blocking sheet, vapor meets cold liquefaction and becomes in the drop of water gets into in the second collection fill 65, and through the discharge of second drain pipe 66 can, when fixing base 5 needs to be dismantled, hard rotation fixing base 5, fixing base 5 rotates and makes connecting seat 71 rotate, connecting seat 71 rotates and then drives fixture block 83 and rotates, fixture block 83 rotates the elasticity of overcoming reset spring 88, when fixture block 83 rotates to shifting chute 81 department at the internal surface of arc wall 82, reset spring 88 jack-up connecting seat 71 that makes progress this moment, connecting seat 71 jack-up fixing base 5 that makes progress promptly, upwards pull fixing base 5 this moment, fixture block 83 can accomplish the dismantlement process to fixing base 5 along the ascending slip of shifting chute 81, when fixing base 5 needs to be installed, reverse above-mentioned operation can, above is exactly the theory of operation of a portable atmosphere on-line monitoring equipment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a portable atmospheric particulates on-line monitoring equipment, includes monitor body (1) and intercommunication fixed mounting at left sense tube (2) of monitor body (1), its characterized in that: the bottom of the monitor body (1) is fixedly connected with a handle (3), the left side of the handle (3) is fixedly connected with a control button (4), the top end of the detection tube (2) is provided with a fixed seat (5), the interior of the detection tube (2) is provided with a water vapor removing mechanism (6), the interior of the fixed seat (5) is provided with an impurity removing mechanism (7), and an installation mechanism (8) is arranged between the fixed seat (5) and the detection tube (2);
the water vapor removing mechanism (6) comprises a first condensation baffle sheet (61) fixedly arranged at the bottom of the inner wall of the detection pipe (2), a first collecting hopper (62) is fixedly connected to the left side of the first condensation baffle (61), the bottom of the first collecting hopper (62) is communicated with a first drainage pipe (63), the bottom end of the first drainage pipe (63) penetrates through the detection pipe (2) and extends to the outside of the detection pipe (2), a second condensation baffle (64) is fixedly connected with the top of the inner wall of the detection pipe (2) and positioned at the right side of the first condensation baffle (61), the left side of the second condensation baffle (64) is fixedly connected with a second collecting hopper (65), the bottom of the second collecting hopper (65) is communicated with a second drain pipe (66), the bottom end of the second water discharge pipe (66) penetrates through the detection pipe (2) and extends to the outside of the detection pipe (2).
2. The portable online atmospheric particulate monitoring device of claim 1, wherein: impurity removal mechanism (7) are including connecting seat (71) of fixed mounting in fixing base (5) bottom, and for running through the logical shell of seting up, air vent (72) have been seted up in running through at the top of connecting seat (71), the top fixedly connected with driving motor (73) of connecting seat (71).
3. The portable online atmospheric particulate monitoring device of claim 2, wherein: the output end of the driving motor (73) is fixedly connected with a rotating shaft (74) through a coupler, and the outer surface of the rotating shaft (74) is fixedly connected with a sleeve (75).
4. The portable online atmospheric particulate monitoring device of claim 3, wherein: the outer surface of sleeve (75) is fixedly connected with flabellum (76), and the outer surface of flabellum (76) and the inner wall contact of fixing base (5).
5. The portable online atmospheric particulate monitoring device of claim 1, wherein: installation mechanism (8) are including offering at moving groove (81) of detecting tube (2) inner wall, arc wall (82) have been seted up in the inner wall of detecting tube (2) and the one side intercommunication that is located moving groove (81), the external fixed surface of connecting seat (71) is connected with fixture block (83).
6. The portable online atmospheric particulate monitoring device of claim 5, wherein: the outer surface of the clamping block (83) is matched with the inner surface of the moving groove (81), the outer surface of the clamping block (83) is in sliding connection with the inner surface of the arc-shaped groove (82), and the inner wall of the detection tube (2) is located right below the connecting seat (71) and is fixedly connected with the fixing ring (84).
7. The portable online atmospheric particulate monitoring device of claim 6, wherein: fixed ring (84) inner wall's both sides all are seted up recess (85), two the equal sliding connection of internal surface of recess (85) has slide bar (86), the both ends of slide bar (86) all run through fixed ring (84) and extend to the outside of fixed ring (84).
8. The portable online atmospheric particulate monitoring device of claim 7, wherein: the top fixedly connected with rubber sleeve (87) of slide bar (86), and the top of rubber sleeve (87) and the bottom contact of connecting seat (71), the surface cover of slide bar (86) is equipped with reset spring (88), and the surface of reset spring (88) and the internal surface contact of recess (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110128662.7A CN112945816A (en) | 2021-01-29 | 2021-01-29 | Portable atmospheric particulates on-line monitoring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110128662.7A CN112945816A (en) | 2021-01-29 | 2021-01-29 | Portable atmospheric particulates on-line monitoring equipment |
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| Publication Number | Publication Date |
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| CN112945816A true CN112945816A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110128662.7A Pending CN112945816A (en) | 2021-01-29 | 2021-01-29 | Portable atmospheric particulates on-line monitoring equipment |
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| CN112198286A (en) * | 2020-10-11 | 2021-01-08 | 房永青 | Inflammable and explosive gas detector with safeguard function |
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|---|---|---|---|---|
| CN107389425A (en) * | 2017-08-28 | 2017-11-24 | 广东省环境监测中心 | A kind of anti-gaseous state analyzer condensation and dewfall and dust-proof device and method |
| WO2019168293A1 (en) * | 2018-02-27 | 2019-09-06 | 주식회사 누리플랜 | Cooling dew-condensation filter means, and white smoke and microdust reducing system using same |
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Application publication date: 20210611 |
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