CN202770675U - Intelligent civil architectural indoor air pollutant sampling apparatus - Google Patents
Intelligent civil architectural indoor air pollutant sampling apparatus Download PDFInfo
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- CN202770675U CN202770675U CN 201220435116 CN201220435116U CN202770675U CN 202770675 U CN202770675 U CN 202770675U CN 201220435116 CN201220435116 CN 201220435116 CN 201220435116 U CN201220435116 U CN 201220435116U CN 202770675 U CN202770675 U CN 202770675U
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Abstract
The utility model relates to an intelligent civil architectural indoor air pollutant sampling apparatus, which can resolve the problems of low accuracy, hard to read, high error in prior air sampling apparatus and inapplicability of the imported sampling apparatuses. An upper housing is arranged on a lower housing, wherein a fixed panel with an intake pipe is disposed in the lower housing, the intake pipe is connected with a gas flow sensor which is connected with a needle-like valve via an air pipe, the needle-like valve is connected with a stepping-motor, and the end of an air outlet of the needle-like valve is connected with the air inlet of a mini acuum pump. The lower housing is provided with a controller which is connected with the gas flow sensor, the stepping-motor and the mini acuum pump, thereby forming an airflow circuit. A liquid crystal display and a switch are disposed on the fixed panel, and batteries are installed in the lower housing. A dual-gas-flow circuit is formed between the second gas flow circuits arranged in the lower housing and on the fixed panel. The intelligent civil architectural indoor air pollutant sampling apparatus has the advantages of fashionable and unique structure, safe and convenient to use and high accuracy.
Description
Technical field
The utility model relates to sampling thief, particularly a kind of intelligent covil construction indoor air pollutants sampling thief.
Background technology
At present in the Indoor Environment Detection process, the indoor air pollutants sampling to what detect that data accuracy has the greatest impact, and the traditional sampling instrument adopts suspended body flowmeter or other mechanical principle mostly, this accuracy of instrument is poor, the reading difficulty, and when bringing onto load was sampled, resistance increased, the sampling flow error can reach at most more than 50%, can't judge the indoor environmental pollution degree; External because the morning that gas flow sensor sets foot in, be applicable to domestic covil construction indoor air pollutants detection architecture form inapplicable, anti-load capacity is not high, require too strict to adsorption tube, be limited to below the 10kPa, need to be equipped with the solid absorption pipe that covered import constant current sampling thief is equipped with, cost is too high, and some solid absorption sampling pipe resistance of China exceeds the anti-load capacity scope of import constant current sampling thief about 30kPa.
Summary of the invention
For above-mentioned situation, for overcoming the defective of prior art, the purpose of the utility model just provides a kind of intelligent covil construction indoor air pollutants sampling thief, can effectively solve existing air sampler low precision, reading difficulty, error greatly and the inapplicable problem of sampling thief of import.
The technical scheme of its solution is, comprise lower house, upper shell and fixed head, the upper shell of rotation is housed on the lower house, consist of a casing, the fixed head of level is housed in the lower house, a draft tube is arranged on the fixed head, draft tube one termination has the gas flow sensor that places in the lower house, gas flow sensor links to each other with needle valve through tracheae, needle valve links to each other with stepper motor through shaft joint, the outlet side of needle valve links to each other with the air intake opening of minipump through tracheae, controller is housed, gas flow sensor in the lower house, stepper motor links to each other with controller with minipump, consists of a gas flow loop, the liquid crystal display that links to each other with controller is housed on the fixed head, the battery that links to each other with each parts in the gas flow loop is housed in the lower house, the switch that links to each other with controller is housed on the fixed head, the second cover gas flow loop is housed in the said lower house and on the fixed head, gas flow sensor in its loop, stepper motor all links to each other with controller with minipump, consists of two gas flow loop structures.
The utility model novel structure is unique, and safe and convenient to use, precision is high, convenient reading.
Description of drawings
Fig. 1 is the vertical view of the utility model when opening upper shell.
Fig. 2 is the annexation block scheme of each parts in the utility model gas return path.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further details.
By Fig. 1, Fig. 2 provides, the utility model comprises lower house, upper shell and fixed head, the upper shell 2 of rotation is housed on the lower house 1, consist of a casing, the fixed head 3 of level is housed in the lower house 1, a draft tube 4 is arranged on the fixed head 3, draft tube 4 one terminations have the gas flow sensor that places in the lower house 1, gas flow sensor links to each other with needle valve through tracheae, needle valve links to each other with stepper motor through shaft joint, the outlet side of needle valve links to each other with the air intake opening of minipump through tracheae, controller is housed in the lower house, gas flow sensor, stepper motor links to each other with controller with minipump, consist of a gas flow loop, the liquid crystal display 5 that links to each other with controller is housed on the fixed head 3, the battery that links to each other with each parts in the gas flow loop is housed in the lower house 1, the switch 6 that links to each other with controller is housed on the fixed head 3, reach in the said lower house 1 the second cover gas flow loop is housed on the fixed head 3, gas flow sensor in its loop, stepper motor all links to each other with controller with minipump, consists of two gas flow loop structures.
On the draft tube in said two gas flow loop a surge flask 7 is housed respectively, prevents gas backflow.
On the draft tube 4 of said surge flask one side filtrator 10 is housed, can with airborne pollutant, dust or steam isolation, makes it to enter instrument internal.
Said controller links to each other with liquid crystal display 5 through the A/D change-over circuit, makes the signal digitalized of detection, and shows through liquid crystal display.
In the said controller wireless launcher is arranged, controller is linked to each other with portable wireless terminal 11 by wireless signal through wireless launcher, portable wireless terminal can be PDA or smart mobile phone etc., said wireless launcher is the MICRF005 chip, can realize unidirectionally in the remote low power wireless device being connected with double-direction radio, utilize wireless control mode automatically to carry out the pollutant collection, replace the testing staff and entered room to be measured manual operations, reduced testing staff's workload, 1 testing staff can control the indoor pollutant collection of whole buildings, the air turbulence impact of having avoided the testing staff to pass in and out bringing in room to be measured, reduced because the testing staff breathes, the factors such as clothing pollutant release are to the interference of testing result, simultaneously, the minimizing personnel are in the residence time in room to be measured, avoid the testing staff cruelly to leak under the indoor pollution source for a long time, be conducive to ensure testing staff's health.
In the tracheae between said draft tube 4 and each parts stainless steel spring is housed, can prevents draft tube 4 and tracheae bending, guarantee the fluency of air-flow.
Said battery is rechargeable battery, and the charging inlet 8 that links to each other with rechargeable battery is arranged on the fixed head 3.
On the said fixed head 3 sampling bottle fixed orifice 9 is arranged, be used for the fixed sample bottle.
Operating position of the present utility model is, inlet end in draft tube is loaded onto sampling bottle, and sampling bottle is fixed in the sampling bottle fixed orifice, opening power, each parts in the gas flow loop are started working, arrange through the gas flow parameter of liquid crystal display to needs first, gas flow sensor is surveyed the flow number of gas in the tracheae, the numerical value that detects is transferred to single-chip microcomputer in the controller, single-chip microcomputer compares the setting value of the data and system that the gas flow sensor transmission comes, if there is difference, just through stepper motor needle valve being carried out PID by controller regulates, make endotracheal air flow rate stable, thereby reach the purpose of constant current control gas collecting, adopt two gas flow loops, further improve the accuracy that gathers, of the present utility model pair of gas flow loop structure can gather two kinds of different indoor pollutants simultaneously.
Flow range of the present utility model: 100～500sccm (sccm is the standard ml/min), the maximum flow error: ± 5%, flow repeatability: 2%, discharge stability :≤± 2%; Adopt flow sensor, and reach the control model of the accurate needle valve of accuracy controlling with PID technology control step motor, substituting traditional control principle (can not show in real time sampling flow when adopting metering hole principle and the control of other mechanical principle, need to cooperate soap film flowmeter to use; Control low precision when adopting control sampling pump current/voltage pattern) reach the constant current sampling, control accuracy is very high, and the sampling loading range of adaptation is larger, and maximum load can reach about 35kPa, is about 3 times of other control modes.
The utility model has been filled up the blank of domestic civil building engineering indoor environment constant current sampling instrument aspect, compare with import constant current sampling instrument, price is lower, and anti-load capacity stronger (be import constant current sampling thief 3 times) is more suitable for the sampling of domestic civil building engineering indoor environment.
Claims (8)
1. intelligent covil construction indoor air pollutants sampling thief, comprise lower house, upper shell and fixed head, it is characterized in that, the upper shell (2) of rotation is housed on the lower house (1), consist of a casing, the fixed head (3) of level is housed in the lower house (1), a draft tube (4) is arranged on the fixed head (3), draft tube (4) one terminations have the gas flow sensor that places in the lower house (1), gas flow sensor links to each other with needle valve through tracheae, needle valve links to each other with stepper motor through shaft joint, the outlet side of needle valve links to each other with the air intake opening of minipump through tracheae, controller is housed in the lower house, gas flow sensor, stepper motor links to each other with controller with minipump, consist of a gas flow loop, the liquid crystal display (5) that links to each other with controller is housed on the fixed head (3), the battery that links to each other with each parts in the gas flow loop is housed in the lower house (1), the switch (6) that links to each other with controller is housed on the fixed head (3), the second cover gas flow loop is housed in the said lower house (1) and on the fixed head (3), gas flow sensor in its loop, stepper motor all links to each other with controller with minipump, consists of two gas flow loop structures.
2. intelligent covil construction indoor air pollutants sampling thief according to claim 1 is characterized in that, on the draft tube in said two gas flow loop a surge flask (7) is housed respectively.
3. intelligent covil construction indoor air pollutants sampling thief according to claim 2 is characterized in that, on the draft tube (4) of said surge flask one side filtrator (10) is housed.
4. intelligent covil construction indoor air pollutants sampling thief according to claim 1 is characterized in that, said controller links to each other with liquid crystal display (5) through the A/D change-over circuit.
5. intelligent covil construction indoor air pollutants sampling thief according to claim 1 is characterized in that in the said controller wireless launcher being arranged, and controller is linked to each other with portable wireless terminal (11) by wireless signal through wireless launcher.
6. intelligent covil construction indoor air pollutants sampling thief according to claim 1 is characterized in that, in the tracheae between said draft tube (4) and each parts stainless steel spring is housed.
7. intelligent covil construction indoor air pollutants sampling thief according to claim 1 is characterized in that, the charging inlet (8) that links to each other with rechargeable battery is arranged on the said fixed head (3).
8. intelligent covil construction indoor air pollutants sampling thief according to claim 1 is characterized in that sampling bottle fixed orifice (9) is arranged on the said fixed head (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220435116 CN202770675U (en) | 2012-08-30 | 2012-08-30 | Intelligent civil architectural indoor air pollutant sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220435116 CN202770675U (en) | 2012-08-30 | 2012-08-30 | Intelligent civil architectural indoor air pollutant sampling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770675U true CN202770675U (en) | 2013-03-06 |
Family
ID=47777239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220435116 Expired - Fee Related CN202770675U (en) | 2012-08-30 | 2012-08-30 | Intelligent civil architectural indoor air pollutant sampling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202770675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592346A (en) * | 2013-11-05 | 2014-02-19 | 上海昶艾科技发展有限公司 | Integrated gas path structure for trace gas analyzer |
| CN103698380A (en) * | 2013-11-05 | 2014-04-02 | 上海昶艾科技发展有限公司 | Electrochemical trace oxygen analyzer for effectively prolonging usage life of sensor |
-
2012
- 2012-08-30 CN CN 201220435116 patent/CN202770675U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592346A (en) * | 2013-11-05 | 2014-02-19 | 上海昶艾科技发展有限公司 | Integrated gas path structure for trace gas analyzer |
| CN103698380A (en) * | 2013-11-05 | 2014-04-02 | 上海昶艾科技发展有限公司 | Electrochemical trace oxygen analyzer for effectively prolonging usage life of sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20130830 |