CN204945050U - Ozone-detecting element - Google Patents

Ozone-detecting element Download PDF

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Publication number
CN204945050U
CN204945050U CN201520539184.9U CN201520539184U CN204945050U CN 204945050 U CN204945050 U CN 204945050U CN 201520539184 U CN201520539184 U CN 201520539184U CN 204945050 U CN204945050 U CN 204945050U
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China
Prior art keywords
ozone
detecting
cover plate
reaction chamber
reaction
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Expired - Fee Related
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CN201520539184.9U
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Chinese (zh)
Inventor
王竹青
郑轶
巩小东
李晔
袁幸杰
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Oceanographic Instrumentation Research Institute Shandong Academy of Sciences
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Oceanographic Instrumentation Research Institute Shandong Academy of Sciences
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Abstract

The utility model provides a kind of ozone-detecting element.Ozone-detecting element, comprises detecting device, controller, sampling component, demarcation assembly and fluid path assembly; Described detecting device comprises and is fixed together the first cover plate and described second cover plate, airtight reaction chamber is formed between described first cover plate and described second cover plate, reaction bed is provided with in described reaction chamber, the part described second cover plate being positioned at described reaction chamber also offers view window, also be provided with glass sheet between described view window and described reaction chamber, in described view window, be provided with photoelectric sensor; Described sampling component comprises the sampling pump and first-class gauge that link together; Described demarcation assembly comprises air pump, zero level air generator, ozone generator, gas mixer, the first reversal valve and threeway.Realize the accuracy of detection and the reliability that improve ozone-detecting element, and handled easily personnel use.

Description

Ozone-detecting element
Technical field
The utility model relates to a kind of gas-detecting device, particularly relates to a kind of ozone-detecting element.
Background technology
Ozone is one of main constituent in air, there is very strong oxidisability, asthmatics's asthma attack can be impelled, cause the symptoms such as chronic respiratory disease deterioration, respiratory disorder, infringement lung functions, long-term suction oxygenant can reduce the metabolism of human body cell, accelerate the aging of people, also can cause crop production reduction, vegetation deterioration etc.Therefore, the online observation of ozone concentration has very important meaning.Ozone concentration in air is lower, not easily detects.Detection method conventional at present comprises ultraviolet absorption method and chemoluminescence method.The response speed of ultraviolet absorption method is comparatively slow, and sensitivity is lower, is disturbed more.By contrast, chemoluminescence method has the advantages such as equipment is simple, detection sensitivity is high, selectivity is good, the range of linearity is wide.Wherein, the heterogeneous surface chemistry luminescence-producing reaction that liquid phase chemoluminescence method depends on ozone gas and detects between reagent, considerably less to the demand of reagent, and waste liquid easily collecting reclaims, device is simple, and selectivity is good, highly sensitive, there is good application prospect, be widely used.But in actual applications, liquid reagent easily produces the change of composition because of ingress of air, detection sensitivity is caused to change, testing result error becomes large, need regular checkout equipment being demarcated by extrinsic calibration equipment, cause that ozone accuracy of detection in prior art is low and operating process is loaded down with trivial details.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of ozone-detecting element, solve the low and defect that operating process is loaded down with trivial details of ozone accuracy of detection in prior art, realize the accuracy of detection and the reliability that improve ozone-detecting element, and handled easily personnel use.
The technical scheme that the utility model provides is, a kind of ozone-detecting element, comprises detecting device, controller, sampling component, demarcation assembly and fluid path assembly, described detecting device comprises and is fixed together the first cover plate and the second cover plate, airtight reaction chamber is formed between described first cover plate and described second cover plate, reaction bed is provided with in described reaction chamber, described reaction bed is attached on described first cover plate, described first cover plate is also provided with the inlet channel be communicated with described reaction chamber and outlet passageway, described inlet channel and described outlet passageway are positioned at the both sides of described reaction bed, described first cover plate is also provided with and is communicated with feed pathway and liquid outlet channel with described reaction chamber, described reaction bed covers in the port of described feed pathway and described liquid outlet channel, the part described second cover plate being positioned at described reaction chamber also offers view window, also glass sheet is provided with between described view window and described reaction chamber, photoelectric sensor is provided with in described view window, described sampling component comprises the sampling pump and first-class gauge that link together, described demarcation assembly comprises air pump, zero level air generator, ozone generator, gas mixer, the first reversal valve and threeway, described air pump is connected with described zero level air generator, described zero level air generator is connected with the import of described gas mixer and described ozone generator respectively by described threeway, and described ozone generator is connected with the import of described gas mixer by described first reversal valve, described fluid path assembly comprises the reagent container and the first peristaltic pump that link together, described first peristaltic pump is connected with described feed pathway, and described first-class gauge is connected with described outlet passageway, and described inlet channel is connected with the outlet of described gas mixer by the second reversal valve, and described second reversal valve is also connected with air sampling tube.
Further, described first cover plate offers diamond groove, described diamond groove and described second cover plate form described reaction chamber, and the port of described feed pathway, the port of described liquid outlet channel, the port of described inlet channel and the port of described outlet passageway lay respectively at the corner of described diamond groove.
Further, described diamond groove is also provided with back up pad, and described back up pad is provided with some through holes, and described reaction bed is arranged in described back up pad.
Further, described liquid outlet channel is connected with waste fluid container, is provided with the second peristaltic pump between described liquid outlet channel and described waste fluid container.
Further, described fluid path assembly also comprises detergent container, and described detergent container is connected with described first peristaltic pump by the 3rd transfer valve with described reagent container.
Further, also retaining valve is provided with between described first transfer valve and described gas mixer.
Further, second gauge is also provided with between described ozone generator and described zero level air generator.
Further, described zero level air generator comprises the filtrator, low pressure mercury lamp module, Nafion drying tube and the decontaminating column that are connected in turn.
The ozone-detecting element that the utility model provides, by based on the liquid phase surface chemistry principle of luminosity between ozone gas and dedicated test reagent, coordinated by inside reactor reaction chamber and reaction bed, make liquid reagent can not produce the change of composition because of contact extraneous air, improve detection sensitivity and improve reaction efficiency, thus greatly improving the response speed of detection, in addition, the ozone gas of zero air and normal concentration is produced online by means of demarcation assembly, achieve the Quick Measurement to background signal and contrast demarcation signal, and based on the linear feature of ozone chemistry reaction detection signal, the background detection signal utilizing measurement to obtain and the demarcation detection signal corresponding to standard ozone concentration gas, achieve and the automatic on-line of sample gas detection signal is demarcated, more effective raising accuracy of detection, and due to without the need to adopting outside calibration facility to demarcate, greatly reduce the labour intensity of operating personnel, by the enforcement of online calibration method, solve traditional chemical luminescence method and measure stability existing for ozone gas and the poor defect of accuracy, improve the practicality that chemoluminescence method measures ozone gas method comprehensively.The on-line measurement of ozone gas and automatic Calibration are integrated in one by the utility model ozone-detecting element, automaticity is high, easy to use, without the need to frequently demarcating and safeguarding, operating cost is low, there is fast response time simultaneously, highly sensitive, selectivity good, accuracy is high, the advantage such as good stability, can realize detecting the real-time online of low concentration ozone gas in atmospheric environment with higher temporal resolution.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure principle chart of the utility model ozone-detecting element embodiment;
Fig. 2 is the structural representation of detecting device in the utility model ozone-detecting element embodiment;
Fig. 3 is the cut-open view of detecting device in the utility model ozone-detecting element embodiment;
Fig. 4 is the assembly drawing of the first cover plate and reaction bed in the utility model ozone-detecting element embodiment;
Fig. 5 is the structure principle chart of zero level air generator in the utility model ozone-detecting element embodiment.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-Figure 4, the present embodiment ozone-detecting element, comprises detecting device 100, controller 200, sampling component 300, demarcates assembly 400 and fluid path assembly 500;
Detecting device 100 comprises the first cover plate 1 and the second cover plate 2, first cover plate 1 and the second cover plate 2 are fixed together, airtight reaction chamber 10 is formed between first cover plate 1 and the second cover plate 2, reaction bed 3 is provided with in reaction chamber 10, reaction bed 3 is attached on the first cover plate 1, first cover plate 1 is also provided with the inlet channel 11 be communicated with reaction chamber 10 and outlet passageway 12, inlet channel 11 and outlet passageway 12 are positioned at the both sides of reaction bed 3, first cover plate 1 is also provided with and is communicated with feed pathway 13 and liquid outlet channel 14 with reaction chamber 10, reaction bed 3 covers in the port of feed pathway 13 and liquid outlet channel 14, the part second cover plate 2 being positioned at reaction chamber 10 also offers view window (not shown), is also provided with glass sheet 4, is provided with photoelectric sensor 5 in view window between view window and reaction chamber 10,
Sampling component 300 comprises the sampling pump 301 and first-class gauge 302 that link together;
Described demarcation assembly 400 comprises air pump 401, zero level air generator 402, ozone generator 403, gas mixer 404, first reversal valve 405 and threeway (not shown), described air pump 40 is connected with described zero level air generator 402, described zero level air generator 402 is connected with the import of described gas mixer 404 and described ozone generator 403 respectively by described threeway, and described ozone generator 403 is connected with the import of described gas mixer 404 by described first reversal valve 405;
Described fluid path assembly 500 comprises the reagent container 501 and the first peristaltic pump 502 that link together;
Described first peristaltic pump 502 is connected with described feed pathway 13, described first-class gauge 302 is connected with described outlet passageway 12, described inlet channel 11 is connected with the outlet of described gas mixer 404 by the second reversal valve 101, and described second reversal valve 101 is also connected with air sampling tube (not shown).
Specifically, detecting device 100 in the present embodiment ozone-detecting element provides the reacting environment detecting gas, and be responsible for chemical reaction luminous signal to be converted to electric signal, controller 200 is responsible for control and the data acquisition display of pick-up unit, controller 200 is connected with the related electronic devices in the present embodiment ozone-detecting element, specifically refer to the connection control relation of accompanying drawing 1 middle controller 200 represented by dotted arrows, sampling component 300 is responsible for the gas sampling of pick-up unit, demarcate assembly 400 for carrying out real-time calibration to ozone-detecting element to improve detection accuracy, fluid path assembly 500 is for the conveying of liquid reagent.Wherein, reaction bed 3 is provided with in reaction chamber 10, reagent can be transported in reaction chamber 10 by feed pathway 13 by fluid path assembly 500, and reagent can spread apart rapidly and uniformly under gravity on reaction bed 3, and inlet channel 11 delivers the gas in reaction chamber 10, gas will with the luminescence-producing reaction of reagent generation surface chemistry, and photoelectric sensor 5 by sensed light signal and be converted into electric signal export, the electric signal that photoelectric sensor 5 exports passes through, and just can be converted to ozone concentration numerical value after computing.And in testing process, the ozone gas of zero air and normal concentration can be obtained by demarcating assembly 400, utilize the ozone gas of zero air and normal concentration in each testing process, automatic on-line demarcation can be carried out to sample gas detection signal, to improve the precision detected, simultaneously, without the need to the calibration facility by outside, handled easily librarian use.
Further, described first cover plate 1 offers diamond groove 15, described diamond groove 15 forms described reaction chamber 10 with described second cover plate 2, and the port of described feed pathway 13, the port of described liquid outlet channel 14, the port of described inlet channel 11 and the port of described outlet passageway 12 lay respectively at the corner of described diamond groove 15.Concrete, the port of feed pathway 13 and the port of liquid outlet channel 14 lay respectively at lower corner on diamond groove 15, and the port of described inlet channel 11 and the port of described outlet passageway 12 lay respectively at diamond groove about 15 bight, substantially vertical direction that liquid reagent flows and gas flows, can effectively avoid gas to the impact of liquid reagent on reaction bed 3, guarantee that liquid reagent is evenly distributed on reaction bed 3, to guarantee the accuracy of measurement data.In addition, because reaction chamber 10 is made up of diamond groove 15, after gas enters into diamond groove 15 by the port of inlet channel 11, first because make the flowing velocity of gas reduce compared with large cavity volume, the more effective impact reducing gas and flow to liquid phase, be beneficial to the stability of detection, the more important thing is, gas can be evenly distributed on reaction bed 3 more along diamond groove 15, chemiluminescence reaction is carried out to guarantee that reaction bed 3 contacts fully with other, improve accuracy in detection, in addition, in conjunction with the structure of diamond groove 15 and inlet channel 11 and outlet passageway 12 distributing position, can avoid occurring dead volume in reaction chamber 10, improve the renewal speed of gas, thus improve detection response speed.
Further, fluid path assembly 500 also comprises detergent container 504, waste fluid container 506 and the second peristaltic pump 506, liquid outlet channel 14 connects waste fluid container 506 by the second peristaltic pump 506, clean-out system holds, and 504 are connected with described first peristaltic pump 502 by the 3rd transfer valve 503 with reagent container 501.Wherein, between the first transfer valve 405 and described gas mixer 404, be also provided with retaining valve 406, between described ozone generator 403 and described zero level air generator 402, be also provided with second gauge 407.As shown in Figure 5, described zero level air generator can comprise the filtrator 4021, low pressure mercury lamp module 4022, Nafion drying tube 4023 and the decontaminating column 4024 that are connected in turn, filtrator 4021, for impurity such as solid particles contained in filtering gas, prevents it from entering follow-up air-channel system; Low pressure mercury lamp module 4022 in order to produce the ozone of ppmv level, in order to sulfocompound, nitrogen-containing compound, hydrocarbon contained in oxidation air; Nafion drying tube 4023 is for moisture contained in filtered air; Carbon dioxide, sulphuric dioxide, nitrogen dioxide and the remaining ozone gas of decontaminating column 4024 in order to eliminate to comprise in gas.
Wherein, the reagent exported in order to avoid feed pathway 13 produces excessive impulsive force to reaction bed 3, is also provided with buffering screen cloth 131 in feed pathway 13.Concrete, the reagent that feed pathway 13 exports just enters into reaction chamber 10 through buffering screen cloth 131, effectively can slow down the flow velocity of reagent, to reduce the impulsive force that reagent produces reaction bed 3; Meanwhile, because reagent flow rate reduces, can guarantee that reagent is more uniform and spread on reaction bed 3.Preferably, buffering screen cloth 131 is positioned at the port of feed pathway 13 also near on reaction bed 3, concrete, reagent is after buffering screen cloth 131 deceleration buffer, directly enter on reaction bed 3, buffering screen cloth 131 enters into the area of reaction bed 3 by increasing reagent, to make, reagent is more uniform to spread on reaction bed 3.And conveniently firmly fixation reaction bed 3, reaction bed 3 is vertically placed, and reaction bed 3 is fixed on the first cover plate 1 by the back up pad (not shown) be arranged in diamond groove 15, back up pad is provided with some through holes.Concrete, back up pad can be plastic net-board, through hole in back up pad can be convenient to liquid reagent and gas passes through, and in use, back up pad will provide support reaction bed 3, avoid reaction bed 3 to impact because of liquid or gas and deformation fold occurs, guarantee the state that reaction bed 3 remains smooth, detect degree of accuracy to improve, reaction bed 3 can adopt bonding mode fixing on the supporting plate.In addition, in order to improve the sealing property of the present embodiment ozone-detecting element, the glass sheet 4 in the present embodiment is clipped between the first cover plate 1 and the second cover plate 2, glass sheet 4 and be respectively arranged with O-ring seal 41 between the first cover plate 1 and the second cover plate 2.Preferably, reaction bed 3 in the present embodiment is the film of silk, pure cotton cloth, glass fiber filter or the contour wellability of polypropylene hot-wind nonwoven cloth, high diffusibility, preferably, adopt silk, reaction bed 3 uses silk, the infiltration spread speed of reagent on silk is fast, be evenly distributed, and silk deformation does not occur after the reagent of liquid infiltrates, make chemiluminescence reaction signal steadily, stable, favorable reproducibility; The absorption of silk to reagent little and be easy to rinse.
The utility model ozone-detecting element, concrete operation step comprises:
Step 1, the first peristaltic pump energising, be transported in reaction chamber by the liquid reagent in reagent container, liquid reagent will form uniform liquid film on reaction bed, and unnecessary liquid reagent arrives after bottom reaction bed and discharges through liquid outlet channel.Concrete, the liquid film of uniform liquid reagent can be formed by step 1, so that there is chemical reaction to produce light signal on reaction bed.
Step 2, air pump are energized, and be transported to by outside air to obtain zero air in zero level air generator, zero air enters into gas mixer and ozone generator respectively, and now, the first reversal valve is in non-"on" position, and ozone gas is emptying through the first reversal valve.Concrete, zero air and ozone gas can be obtained by step 2, so that step 3 and 4 carries out on-line proving.
Step 3, background detection pattern: sampling pump is energized, second reversal valve is in non-"on" position, zero air in mixer to be drawn in reaction chamber with the liquid reagent generation chemical reaction on reaction bed to produce chemiluminescence signal with the flow velocity of regulation under the effect of sampling pump, to be undertaken sampling the background detection signal x0 under acquisition background detection pattern by photoelectric sensor.Concrete, owing to not containing ozone in zero air, then background detection signal x0 when can be zero according to the light signal acquisition ozone content detected.
Step 4, demarcation detecting pattern, first reversal valve energising, ozone gas mixes with zero air Quick uniform in mixer, the ozone standard gas demarcating concentration value is obtained after mixing, and to enter to be drawn in reaction chamber with the liquid reagent generation chemical reaction on reaction bed to produce chemiluminescence signal with the flow velocity of regulation under the effect of sampling pump, to be undertaken sampling the demarcation detection signal x1 obtained under demarcation detecting pattern by photoelectric sensor; And obtain ozone linear equation according to background detection signal x0 and demarcation detection signal x1.Concrete, in step 4, ozone gas mixes with zero air Quick uniform in mixer, in mixed gas, the concentration of ozone is confirmable, the demarcation detection signal x1 under the known ozone concentration that detecting device obtains is entered into as ozone standard gas, and based on the linear feature of ozone chemistry reaction detection signal, according to above-mentioned background detection signal x0 with demarcate detection signal x1 and obtain ozone linear equation.
Step 5, ozone detecting pattern, first reversal valve power-off, second reversal valve energising, under the effect of sampling pump, gaseous sample to be measured to be drawn in reaction chamber with the liquid reagent generation chemical reaction on reaction bed to produce chemiluminescence signal by air sampling tube with the flow velocity of regulation, to be undertaken sampling the detection signal x2 under acquisition background detection pattern by photoelectric sensor.Concrete, gaseous sample to be measured enters into detecting device and detects acquisition detection signal x2.
Step 6, according in step 4 obtain ozone linear equation and step 5 in obtain detection signal x2, calculate the ozone concentration in gaseous sample to be measured.Concrete, obtain data according to step 4 and step 5, calculate the ozone concentration obtained in gaseous sample to be measured.
The ozone-detecting element that the utility model provides, by based on the liquid phase surface chemistry principle of luminosity between ozone gas and dedicated test reagent, coordinated by inside reactor reaction chamber and reaction bed, make liquid reagent can not produce the change of composition because of contact extraneous air, improve detection sensitivity and improve reaction efficiency, thus greatly improving the response speed of detection, in addition, the ozone gas of zero air and normal concentration is produced online by means of demarcation assembly, achieve the Quick Measurement to background signal and contrast demarcation signal, and based on the linear feature of ozone chemistry reaction detection signal, the background detection signal utilizing measurement to obtain and the demarcation detection signal corresponding to standard ozone concentration gas, achieve and the automatic on-line of sample gas detection signal is demarcated, more effective raising accuracy of detection, and due to without the need to adopting outside calibration facility to demarcate, greatly reduce the labour intensity of operating personnel, by the enforcement of online calibration method, solve traditional chemical luminescence method and measure stability existing for ozone gas and the poor defect of accuracy, improve the practicality that chemoluminescence method measures ozone gas method comprehensively.The on-line measurement of ozone gas and automatic Calibration are integrated in one by the utility model ozone-detecting element, automaticity is high, easy to use, without the need to frequently demarcating and safeguarding, operating cost is low, there is fast response time simultaneously, highly sensitive, selectivity good, accuracy is high, the advantage such as good stability, can realize detecting the real-time online of low concentration ozone gas in atmospheric environment with higher temporal resolution.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.

Claims (8)

1. an ozone-detecting element, is characterized in that, comprises detecting device, controller, sampling component, demarcation assembly and fluid path assembly, described detecting device comprises and is fixed together the first cover plate and the second cover plate, airtight reaction chamber is formed between described first cover plate and described second cover plate, reaction bed is provided with in described reaction chamber, described reaction bed is attached on described first cover plate, described first cover plate is also provided with the inlet channel be communicated with described reaction chamber and outlet passageway, described inlet channel and described outlet passageway are positioned at the both sides of described reaction bed, described first cover plate is also provided with and is communicated with feed pathway and liquid outlet channel with described reaction chamber, described reaction bed covers in the port of described feed pathway and described liquid outlet channel, the part described second cover plate being positioned at described reaction chamber also offers view window, also glass sheet is provided with between described view window and described reaction chamber, photoelectric sensor is provided with in described view window, described sampling component comprises the sampling pump and first-class gauge that link together, described demarcation assembly comprises air pump, zero level air generator, ozone generator, gas mixer, the first reversal valve and threeway, described air pump is connected with described zero level air generator, described zero level air generator is connected with the import of described gas mixer and described ozone generator respectively by described threeway, and described ozone generator is connected with the import of described gas mixer by described first reversal valve, described fluid path assembly comprises the reagent container and the first peristaltic pump that link together, described first peristaltic pump is connected with described feed pathway, and described first-class gauge is connected with described outlet passageway, and described inlet channel is connected with the outlet of described gas mixer by the second reversal valve, and described second reversal valve is also connected with air sampling tube.
2. ozone-detecting element according to claim 1, it is characterized in that, described first cover plate offers diamond groove, described diamond groove and described second cover plate form described reaction chamber, and the port of described feed pathway, the port of described liquid outlet channel, the port of described inlet channel and the port of described outlet passageway lay respectively at the corner of described diamond groove.
3. ozone-detecting element according to claim 2, is characterized in that, described diamond groove is also provided with back up pad, and described back up pad is provided with some through holes, and described reaction bed is arranged in described back up pad.
4. ozone-detecting element according to claim 1, is characterized in that, described liquid outlet channel is connected with waste fluid container, is provided with the second peristaltic pump between described liquid outlet channel and described waste fluid container.
5. ozone-detecting element according to claim 1, is characterized in that, described fluid path assembly also comprises detergent container, and described detergent container is connected with described first peristaltic pump by the 3rd transfer valve with described reagent container.
6. ozone-detecting element according to claim 1, is characterized in that, is also provided with retaining valve between described first transfer valve and described gas mixer.
7. ozone-detecting element according to claim 1, is characterized in that, is also provided with second gauge between described ozone generator and described zero level air generator.
8. ozone-detecting element according to claim 1, is characterized in that, described zero level air generator comprises the filtrator, low pressure mercury lamp module, Nafion drying tube and the decontaminating column that are connected in turn.
CN201520539184.9U 2015-07-23 2015-07-23 Ozone-detecting element Expired - Fee Related CN204945050U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105067596A (en) * 2015-07-23 2015-11-18 山东省科学院海洋仪器仪表研究所 Ozone detection apparatus and detection method thereof
CN107462572A (en) * 2016-07-12 2017-12-12 伦慧东 A kind of photocatalyst air dissipation function comparison system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105067596A (en) * 2015-07-23 2015-11-18 山东省科学院海洋仪器仪表研究所 Ozone detection apparatus and detection method thereof
CN105067596B (en) * 2015-07-23 2018-04-13 山东省科学院海洋仪器仪表研究所 Ozone-detecting element and detection method
CN107462572A (en) * 2016-07-12 2017-12-12 伦慧东 A kind of photocatalyst air dissipation function comparison system

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