CN205643283U - Modified harmful gas check out test set - Google Patents
Modified harmful gas check out test set Download PDFInfo
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- CN205643283U CN205643283U CN201620243338.4U CN201620243338U CN205643283U CN 205643283 U CN205643283 U CN 205643283U CN 201620243338 U CN201620243338 U CN 201620243338U CN 205643283 U CN205643283 U CN 205643283U
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Abstract
The utility model discloses a modified harmful gas check out test set, including casing and particulate matter sensor and formaldehyde sensor, be provided with first cavity and second cavity in the casing respectively, particulate matter sensor installs in first cavity, and formaldehyde sensor installs in the second cavity, is provided with the vent line between first cavity and the second cavity, first cavity is provided with the air inlet, and particulate matter sensor is located the axis of air inlet, and particulate matter sensor's the outside is provided with rotatory ring, is provided with the guide ring on the rotatory ring, is provided with the honeycomb duct on the lateral wall of air inlet, the second cavity is provided with the gas outlet, and formaldehyde sensor fixes at the top of gas outlet, and formaldehyde sensor is located the axis of gas outlet, and formaldehyde sensor's the outside is provided with the mounting cup. The utility model discloses the not enough of prior art can be solved, the detection precision has been improved.
Description
Technical field
This utility model relates to air quality monitoring technical field, the harmful gas detection equipment of a kind of improvement.
Background technology
Along with the development in epoch, the living environment of safety and Health becomes pursuing a goal of more and more people.But along with economic development and living standard improve, the harmful poisonous gas that house decorative material and furniture etc. bring such as exceeds standard at the indoor environment problem serious threat health；The economic loss caused due to room air pollution and the rising of crowd's sickness rate are the most surprising, and its origin cause of formation is all owing in air, the content of harmful gas exceedes and even substantially exceeds caused by its minimum acceptable concentration.
Harmful gas refers to the various gases constituting a threat to health or life security, than if make toxic gas that people is poisoned, nontoxic but people can be made to suffocate gas, can cause blast or inflammable gas and those destroy living environment and jeopardize the gas that people are healthy, such as formaldehyde etc..And air pollution is the most all invisible, impalpable, it is impossible to enough examinations exist bigger health threat to the vivosphere of inhabitation personnel.
Existing detection device major part is all the sensor carrying simple function, if it is desired to it is many that IAQ (indoor air quality) carries out comprehensive detection equipment needed thereby, practicality is poor.Having some comprehensive detection devices also simply each sensor to be carried out simple combination, use the problem easily occurring interfering, certainty of measurement is poor.
Utility model content
The technical problems to be solved in the utility model is to provide the harmful gas detection equipment of a kind of improvement, it is possible to solves the deficiencies in the prior art, improves accuracy of detection.
For solving above-mentioned technical problem, technical solution adopted in the utility model is as follows.
A kind of harmful gas detection equipment of improvement, including casing and particulate matter sensors and formaldehyde sensor, the first chamber and the second chamber it is respectively arranged with in described casing, particulate matter sensors is arranged in the first chamber, formaldehyde sensor is arranged in the second chamber, is provided with vent line between the first chamber and the second chamber；First chamber is provided with air inlet, particulate matter sensors is positioned on the axis of air inlet, the outside of particulate matter sensors is provided with rotating ring, guide ring it is provided with on rotating ring, it is provided with mozzle on the sidewall of air inlet, the outlet of mozzle is positioned at the side of guide ring, and guide ring includes apical ring and base ring, is evenly arranged with blade between apical ring and base ring；Second chamber is provided with gas outlet, formaldehyde sensor is fixed on the top of gas outlet, formaldehyde sensor is positioned on the axis of gas outlet, the outside of formaldehyde sensor is provided with mounting cup, and mounting cup is fixed on gas outlet by installing plate, and the bottom of mounting cup is provided with the first opening, the sidewall of mounting cup is provided with several the second openings, being provided with the 3rd opening on installing plate, the bottom of the first opening is provided with guide shell, and guide shell is evenly arranged with several strip pod apertures.
As a kind of optimal technical scheme of the present utility model, described blade being provided with chute, sliding in chute is provided with slide block, is connected and has torsion spring, torsion spring is fixed with back blades between slide block with apical ring.
As a kind of optimal technical scheme of the present utility model, several arc convex portions it are evenly arranged with on described base ring, arc convex portion is positioned between two connected blades, the sidewall in arc convex portion is provided with annular groove, is provided with several through holes between top and the annular groove in arc convex portion.
As a kind of optimal technical scheme of the present utility model, the inlet end of described vent line is positioned at the underface of guide ring, and the outlet side of vent line is positioned at the center of the second chamber bottom surface, is provided with dust filter unit in vent line.
As a kind of optimal technical scheme of the present utility model, described dust filter unit includes shell, a HEPA filter element it is provided with in shell, shunt valve it is provided with in shell, the import of shunt valve is positioned at the sidewall of shell, the outlet of shunt valve is positioned at the top of a HEPA filter element, and the bottom of a HEPA filter element is provided with the 2nd HEPA filter element.
As a kind of optimal technical scheme of the present utility model, the end face width of described 3rd opening is less than the bottom width of the 3rd opening, and the outside of installing plate is fixed with arc deflection plate.
As a kind of optimal technical scheme of the present utility model, described guide shell is hyperboloid of one sheet shape, and its surface equation is,
Strip pod apertures is 16 ° 23 ' with the angle of guide shell axis.
As a kind of optimal technical scheme of the present utility model, described guide shell is connected on the first opening by spring body, and the lower edge of guide shell is optionally positioned at inner side or the outside of QI KOU along with the elastic deformation of spring body.
What employing technique scheme was brought has the beneficial effects that: this utility model installs chamber and the installation chamber of formaldehyde sensor by design particulate matter sensors, realize the separate work of two sensors, by improving air current flow mode, improve the accuracy of detection of sensor.The air to be measured that air inlet is directly blown by particulate matter sensors detects, and fraction is imported guide ring by mozzle, makes guide ring high speed rotating, thus forms spiral air flow on the surface of particulate matter sensors, it is to avoid dust assembles the interference to detection.By the optimization to guide ring structure, the drive efficiency of guide ring can be improved, improve airflow characteristic.Owing to the detection of formaldehyde needs a metastable air draught environment, so formaldehyde sensor is separately provided, and install mounting cup additional, utilize air-flow to pass through the second opening and tiny structure that the 3rd opening is formed, it is achieved for the adjustment of the first opening part air draught flow.Dust filter unit in vent line can reduce the particulate matter pollution for formaldehyde sensor, and the structure of dust filter unit can reduce back pressure for the impact of air current flow in vent line.Optimization for mounting cup structure can form stable circulation in the position of mounting cup, thus improves the stability of the outer sidewind renewal speed of formaldehyde sensor.
Accompanying drawing explanation
Fig. 1 is the structure chart of one detailed description of the invention of this utility model.
Fig. 2 is the partial enlarged drawing of guide ring in one detailed description of the invention of this utility model.
Fig. 3 is the structure chart of dust filter unit in one detailed description of the invention of this utility model.
Fig. 4 is the systematic schematic diagram that this utility model applies in actual measurement work.
Fig. 5 is the circuit diagram of immunity module in Fig. 4.
Detailed description of the invention
The standardized element used in this utility model all can be commercially, shaped piece all can carry out customized according to the record with accompanying drawing of description, the concrete connected mode of each part all use in prior art ripe bolt, rivet, weld, the conventional means such as stickup, be not described in detail in this.
Referring to accompanying drawing 1-3, this specific embodiment includes casing 1 and particulate matter sensors 2 and formaldehyde sensor 3, the first chamber 4 and the second chamber 5 it is respectively arranged with in described casing 1, particulate matter sensors 2 is arranged in the first chamber 4, formaldehyde sensor 3 is arranged in the second chamber 5, is provided with vent line 6 between the first chamber 4 and the second chamber 5；First chamber 4 is provided with air inlet 7, particulate matter sensors 2 is positioned on the axis of air inlet 7, the outside of particulate matter sensors 2 is provided with rotating ring 8, guide ring 9 it is provided with on rotating ring 8, mozzle 10 it is provided with on the sidewall of air inlet 7, the outlet of mozzle 10 is positioned at the side of guide ring 9, and guide ring 9 includes apical ring 11 and base ring 12, is evenly arranged with blade 13 between apical ring 11 and base ring 12；Second chamber 5 is provided with gas outlet 14, formaldehyde sensor 3 is fixed on the top of gas outlet 14, formaldehyde sensor 3 is positioned on the axis of gas outlet 14, the outside of formaldehyde sensor 3 is provided with mounting cup 15, mounting cup 15 is fixed on gas outlet 14 by installing plate 18, the bottom of mounting cup 15 is provided with the first opening 16, the sidewall of mounting cup 15 is provided with several the second openings 17, the 3rd opening 19 it is provided with on installing plate 18, the bottom of the first opening 16 is provided with guide shell 20, and guide shell 20 is evenly arranged with several strip pod apertures 21.Being provided with chute 22 on blade 13, sliding in chute 22 is provided with slide block 23, is connected and has torsion spring 24, torsion spring 24 is fixed with back blades 25 between slide block 23 with apical ring 11.Several arc convex portions 26 it are evenly arranged with on base ring 12, arc convex portion 26 is between two connected blades 13, the sidewall in arc convex portion 26 is provided with annular groove 45, is provided with several through holes 27 between top and the annular groove 45 in arc convex portion 26.The inlet end of vent line 6 is positioned at the underface of guide ring 9, and the outlet side of vent line 6 is positioned at the center of the second chamber 5 bottom surface, is provided with dust filter unit 28 in vent line 6.Dust filter unit 28 includes shell 29, a HEPA filter element 30 it is provided with in shell 29, shunt valve 31 it is provided with in shell 29, the import of shunt valve 31 is positioned at the sidewall of shell 29, the outlet of shunt valve 31 is positioned at the top of a HEPA filter element 30, and the bottom of a HEPA filter element 30 is provided with the 2nd HEPA filter element 32.The end face width of the 3rd opening 19 is less than the bottom width of the 3rd opening, and it is hyperboloid of one sheet shape that the outside of installing plate 18 is fixed with arc deflection plate 33 guide shell 20, and its surface equation is,
Strip pod apertures 21 is 16 ° 23 ' with the angle of guide shell 20 axis.
Guide shell 20 is connected on the first opening 16 by spring body 34, and the lower edge of guide shell 20 is optionally positioned at inner side or the outside of QI KOU 14 along with the elastic deformation of spring body 34.
Particularly, back blades 25 is arranged in a mutually vertical manner with blade 13.
With reference to Fig. 4-5, this utility model is applied in actual measurement work, also needs to ambient external device one measurement system of composition.Particulate matter sensors 2 that system includes being connected with input module 35, formaldehyde sensor 3, temperature sensor 36, humidity sensor 37, carbon dioxide sensor 38, input module 35 is connected to microprocessor 39 by immunity module 44, microprocessor 39 is connected to display 41 by output module 40, and microprocessor 39 connects battery 42 and wireless charging module 43.Wireless charging module 43 includes the wireless charging receiver module in wireless charging indoor harmful gas detection equipment and external wireless charging transmitter module.Electric energy is transferred to wireless charging receiver module from wireless charging transmitter module end, and feedback is sent back magnetic coupling device with the form of digit pulse by wireless charging receiver module.Owing to using the technical approach of wireless charging, thus it use after there is convenient, the whole day of charging, use more convenient.
nullWherein，The input IN of immunity module 44 is connected to the positive input of the first amplifier A1 by the first resistance R1 and the second resistance R2 of series connection，The reverse input end of the first amplifier A1 is connected to the outfan of the first amplifier A1 by the 3rd resistance R3，It is connected to the outfan of the first amplifier A1 by the first electric capacity C1 between first resistance R1 and the second resistance R2，By the second electric capacity C2 and the 4th resistance R4 ground connection of series connection between first resistance R1 and the second resistance R2，The base stage of audion Q it is connected between second electric capacity C2 and the 4th resistance R4，The colelctor electrode of audion Q is connected to the positive input of the first amplifier A1 by the 5th resistance R5 and the 3rd electric capacity C3 of series connection，The emitter stage of audion Q passes through the 4th electric capacity C4 ground connection，The colelctor electrode of audion Q passes through the 5th electric capacity C5 ground connection.The outfan of the first amplifier A1 is connected to the outfan OUT of immunity module 44 by the 6th resistance R6.By the filtration of anti-jamming circuit, the signal to noise ratio of signal can be improved.
The work process of native system comprises the steps:
A, input module 35 circle collection particulate matter sensors 2, formaldehyde sensor 3, temperature sensor 36, humidity sensor 37, the signal of carbon dioxide sensor 38, be then fed in microprocessor 39；
The data and curves of above-mentioned five sensors drawn under same time coordinate system respectively by B, microprocessor 39, occurs that to any one data and curves the time point of Spline smoothing extracts；
Data on the time point of each extraction are processed by C, microprocessor 39 successively, and processing procedure is,
Carry out five segment data curves processing under normalizing, obtain corresponding characteristic function, then the First Eigenvalue of the characteristic function that Spline smoothing occurs is extracted, each group of the First Eigenvalue is substituted into characteristic function minimum with the Euclidean distance of corresponding the First Eigenvalue in the characteristic function of Spline smoothing does not occurs, obtain and the First Eigenvalue Second Eigenvalue one to one, use Second Eigenvalue that characteristic function is converted, obtain new characteristic function, obtain the transmission function between new and old characteristic function；
Data and curves Spline smoothing occur is optimized by D, utilization transmission function.
Said method can effectively reduce the error signal impact for accuracy of detection.
Foregoing description is only used as the enforceable technical scheme of this utility model and proposes, not as the single restrictive condition to its technical scheme itself.
Claims (8)
1. the harmful gas detection equipment that one kind is improved, including casing (1) and particulate matter sensors (2) and formaldehyde sensor (3), it is characterized in that: in described casing (1), be respectively arranged with the first chamber (4) and the second chamber (5), particulate matter sensors (2) is arranged in the first chamber (4), formaldehyde sensor (3) is arranged in the second chamber (5), is provided with vent line (6) between the first chamber (4) and the second chamber (5)；First chamber (4) is provided with air inlet (7), particulate matter sensors (2) is positioned on the axis of air inlet (7), the outside of particulate matter sensors (2) is provided with rotating ring (8), guide ring (9) it is provided with on rotating ring (8), mozzle (10) it is provided with on the sidewall of air inlet (7), the outlet of mozzle (10) is positioned at the side of guide ring (9), guide ring (9) includes apical ring (11) and base ring (12), is evenly arranged with blade (13) between apical ring (11) and base ring (12)；Second chamber (5) is provided with gas outlet (14), formaldehyde sensor (3) is fixed on the top of gas outlet (14), formaldehyde sensor (3) is positioned on the axis of gas outlet (14), the outside of formaldehyde sensor (3) is provided with mounting cup (15), mounting cup (15) is fixed on gas outlet (14) by installing plate (18), the bottom of mounting cup (15) is provided with the first opening (16), the sidewall of mounting cup (15) is provided with several the second openings (17), the 3rd opening (19) it is provided with on installing plate (18), the bottom of the first opening (16) is provided with guide shell (20), several strip pod apertures (21) it are evenly arranged with on guide shell (20).
The harmful gas detection equipment of improvement the most according to claim 1, it is characterized in that: on described blade (13), be provided with chute (22), slide in chute (22) and be provided with slide block (23), it is connected between slide block (23) with apical ring (11) and has torsion spring (24), torsion spring (24) is fixed with back blades (25).
The harmful gas detection equipment of improvement the most according to claim 2, it is characterized in that: on described base ring (12), be evenly arranged with several arc convex portions (26), arc convex portion (26) is positioned between two connected blades (13), the sidewall in arc convex portion (26) is provided with annular groove (45), is provided with several through holes (27) between top and the annular groove (45) of arc convex portion (26).
The harmful gas detection equipment of improvement the most according to claim 3, it is characterized in that: the inlet end of described vent line (6) is positioned at the underface of guide ring (9), the outlet side of vent line (6) is positioned at the center of the second chamber (5) bottom surface, is provided with dust filter unit (28) in vent line (6).
The harmful gas detection equipment of improvement the most according to claim 4, it is characterized in that: described dust filter unit (28) includes shell (29), a HEPA filter element (30) it is provided with in shell (29), shunt valve (31) it is provided with in shell (29), the import of shunt valve (31) is positioned at the sidewall of shell (29), the outlet of shunt valve (31) is positioned at the top of a HEPA filter element (30), and the bottom of a HEPA filter element (30) is provided with the 2nd HEPA filter element (32).
The harmful gas detection equipment of improvement the most according to claim 5, it is characterized in that: the end face width of described 3rd opening (19) is less than the bottom width of the 3rd opening, and the outside of installing plate (18) is fixed with arc deflection plate (33).
The harmful gas detection equipment of improvement the most according to claim 6, it is characterised in that: described guide shell (20) is hyperboloid of one sheet shape, and its surface equation is,
Strip pod apertures (21) is 16 ° 23 ' with the angle of guide shell (20) axis.
The harmful gas detection equipment of improvement the most according to claim 7, it is characterized in that: described guide shell (20) is connected on the first opening (16) by spring body (34), and the lower edge of guide shell (20) is optionally positioned at inner side or the outside of QI KOU (14) along with the elastic deformation of spring body (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620243338.4U CN205643283U (en) | 2016-03-28 | 2016-03-28 | Modified harmful gas check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620243338.4U CN205643283U (en) | 2016-03-28 | 2016-03-28 | Modified harmful gas check out test set |
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| Publication Number | Publication Date |
|---|---|
| CN205643283U true CN205643283U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620243338.4U Withdrawn - After Issue CN205643283U (en) | 2016-03-28 | 2016-03-28 | Modified harmful gas check out test set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758997A (en) * | 2016-03-28 | 2016-07-13 | 河北巢乐环保科技有限公司 | Improved harmful gas detecting equipment |
| CN113970625A (en) * | 2021-12-24 | 2022-01-25 | 河北先河环保科技股份有限公司 | Ecological monitoring equipment |
| CN114279500A (en) * | 2021-12-24 | 2022-04-05 | 河北先河环保科技股份有限公司 | Ecological monitoring station |
-
2016
- 2016-03-28 CN CN201620243338.4U patent/CN205643283U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758997A (en) * | 2016-03-28 | 2016-07-13 | 河北巢乐环保科技有限公司 | Improved harmful gas detecting equipment |
| CN113970625A (en) * | 2021-12-24 | 2022-01-25 | 河北先河环保科技股份有限公司 | Ecological monitoring equipment |
| CN114279500A (en) * | 2021-12-24 | 2022-04-05 | 河北先河环保科技股份有限公司 | Ecological monitoring station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20190215 |