CN205229033U - Low concentration ozone concentration detection appearance of single light source - Google Patents
Low concentration ozone concentration detection appearance of single light source Download PDFInfo
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- CN205229033U CN205229033U CN201521026597.3U CN201521026597U CN205229033U CN 205229033 U CN205229033 U CN 205229033U CN 201521026597 U CN201521026597 U CN 201521026597U CN 205229033 U CN205229033 U CN 205229033U
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- single light
- low concentration
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Abstract
The utility model provides a low concentration ozone concentration detection appearance of single light source, contains two gaseous branching units, zero gas processing apparatus, gas circuit auto -change over device, detects pond, signal amplifier, AD converter, flow sensor, temperature sensor, pressure sensor, control processing module, display device and air pump, detecting the pond and containing ultraviolet tube and lamp house, air chamber and ultraviolet light intensity probe, establish the light trap on the ultraviolet lamp house, light trap and ultraviolet light intensity probe and perpendicular are do not aimed at to two tip of air chamber, set up air inlet and gas outlet on the air chamber, and the input and the air supply of first gaseous branching unit are connected, and its output is connected with the input of zero gas processing apparatus and the gaseous branching unit of second respectively, and zero gas processing apparatus output is connected with gas circuit auto -change over device input, the output of the gaseous branching unit of second is connected with pressure sensor and gas circuit auto -change over device, and gas circuit auto -change over device's output is connected with the air inlet of air chamber, and flow sensor's input port is connected with the gas outlet of air chamber, and its delivery outlet is connected with the air pump.
Description
Technical field
The utility model relates to a kind of ozone concentration instrument, and especially a kind of ozone concentration detector of single light source, belongs to ozone concentration field of measuring technique.
Background technology
Current ozone concentration tester both domestic and external adopts electrochemical process or ultraviolet absorption method mostly, and its life-span of the ozone concentration tester of electrochemical process is short, and use cost is high, therefore mostly adopts ultraviolet absorption method.Existing a kind of ozone concentration instrument adopts the structure in double light path biabsorption chamber, this structure needs a spectrometer that ultraviolet light is divided into two-way to enter the equal absorbing cavity of two gas lengths more respectively, reference gas is passed in one of them absorbing cavity, tested gas is passed in another absorbing cavity, the ultraviolet that ultraviolet lamp tube sends enters a spectrophotometric unit after filter unit filters, and the light path that ultraviolet lamp tube sends is divided into two light paths through described spectrophotometric unit and enters two absorbing cavities respectively.It utilizes spectrometer ultraviolet light to be divided into two-way to carry out DATA REASONING respectively and can well ensure the synchronous of data.But it needs to arrange a spectrometer and two absorbing cavities, make device structure complicated and add equipment cost.In the concentration meter that the two gas circuit of most light splitting simultaneously detects, two cover circuit acquisition systems are all set, due to the deviation that components and parts itself exist, make two cover acquisition systems can there is certain error, when detecting for low concentration ozone, will accuracy of detection be reduced.
Other ozone concentration instrument of the prior art, are generally that certain time carries out balance check before use, then detect, instead of each detection carries out balance check all in real time.Aging due to quartz burner, easily causes inaccurately cause detection error zero point, cannot carry out zero point correction, affect measuring accuracy in its on-line checkingi process.
Therefore, need one structure is simple, cost is low, precision is high, stability is high, the ozone concentration tester of the low concentration of real time calibration online can meet actual needs.
Utility model content
The utility model provides a kind of low concentration ozone concentration detector of single light source, and its structure is simple, and equipment cost is low and measurement is accurate, stability is high, can solve at least one weak point existing for above-mentioned background technology well.
The low concentration ozone concentration detector of a kind of single light source of the present utility model, its technical scheme is as follows: a kind of low concentration ozone concentration detector of single light source, is characterized in that: comprise the first gas shunt device, zero Flash Gas Compression Skid System, the second gas shunt device, gas path switching device, detection cell, signal amplifier, AD converter, flow sensor, temperature sensor, pressure transducer, control treatment module, display device and an air pump, described detection cell comprises quartz burner and ultraviolet lamp house, air chamber and ultraviolet light intensity probe, described air chamber is the elongate channel of a closed at both ends, described uviol lamp indoor arrange quartz burner, ultraviolet lamp house is offered light hole and aim at the first end of air chamber also vertically, the second end of air chamber aims at ultraviolet light intensity probe and vertically, two ends of described air chamber are can be uv-transmitting, close two end positions of air chamber arrange air intake opening and gas outlet respectively, and the output terminal of described ultraviolet light intensity probe is connected with the input end of signal amplifier, and the output terminal of signal amplifier is connected with the input end of AD converter, the input end of described first gas shunt device is connected with gas to be measured, and the first output terminal of the first gas shunt device is connected with the input end of zero Flash Gas Compression Skid System, and the output terminal of zero Flash Gas Compression Skid System is connected with the input end of gas path switching device, second output terminal of the first gas shunt device is connected with the input end of the second gas shunt device, first output terminal of the second gas shunt device is connected with the input end of gas path switching device, the output terminal of described gas path switching device is connected with the air intake opening of air chamber, described temperature sensor presses close to air chamber outside surface for detecting the temperature of gas indoor gas, described pressure transducer is connected with the second output terminal of the second gas shunt device, the input port of described flow sensor is connected with the gas outlet of air chamber, the delivery outlet of described flow sensor is connected with air pump, described AD converter, flow sensor, temperature sensor, pressure transducer is also connected with the input end of described control treatment module, display device, quartz burner and gas path switching device are connected with the output terminal of control treatment module.
In order to better technique effect, the technical characterstic of technical solutions of the utility model can be specially following technical characteristic:
1. ultraviolet light intensity probe described in is the ultraviolet photodiode of high selectivity low-dark current.
2. quartz burner described in is ultraviolet wavelength 254nm and does not produce the quartz burner of ozone gas.
3. AD converter described in is the AD converter of 24 or more seniority.
4. signal amplifier described in is programmable signal amplifier.
5. zero Flash Gas Compression Skid System described in comprises the ozone breaker and filtrator that are linked in sequence.
6. described in, between flow sensor and the gas outlet of air chamber, ozone breaker is set.
7. described in, air chamber is made up of quartz glass.
8. the coated one deck light shield layer of the outside surface of air chamber described in.
9. light shield layer described in is lighttight coating.
10. display device described in is digital tube display device.
Described in 11., control treatment module is also connected with communication device.
The length of air chamber described in 12. is 100mm ~ 150mm.
Signal amplifier described in 13. and/or described AD converter are integrated in described control treatment module.
Adopt the low concentration ozone concentration detector of single light source of technical solutions of the utility model to have structure simple, equipment cost is low and measure advantage accurately, be at least following some:
1. do not arrange ultraviolet light spectrometer in ozone concentration instrument of the present utility model, make whole tester decrease number of elements, structure is simple, reduces equipment cost, and eliminates the error that may exist because using spectrometer, improves measuring accuracy;
2. zero gas and tested gas are from same source of the gas, gas path switching device is controlled by control treatment module, during each measurement, air chamber is passed through in zero gas and the equal timesharing of tested gas, carry out balance check before making each measurement, reduce to greatest extent in prior art and cause the aging measured deviation caused of fluorescent tube because concentration meter school zero and the actual measurement time interval are long, realize online real time calibration zero point, accuracy of detection is high, can measure the gas of drop ozone concentration;
3. and the preheating time of quartz burner short, zero point stability, almost without drift;
4. adopt the technical scheme of single source, single air chamber, single ultraviolet light intensity probe and single cover circuit, make device structure simple, volume is little, easy to carry, and greatly reduces the manufacturing cost of system;
5. single light source and single cover circuitry warm-up time short, there is not the circuit deviations because components and parts difference causes, can detect low concentration ozone, precision is high, stability is high;
6. zero gas and tested gas are from same source of the gas, and outside deozonize gas, other compositions are identical, but zero gas eliminates ozone through ozone breaker process, makes detection more accurate;
7. tested gas and zero gas are by same air chamber, and gas circuit length is consistent, and simple with reference to contrast, precision is high, stability is high; And device structure is simple, low cost of manufacture, maintenance are simple.
Accompanying drawing explanation
Fig. 1 is the general illustration of an embodiment of the low concentration ozone concentration detector of a kind of single light source of the present utility model
Fig. 2 is the structural representation of an embodiment of the low concentration ozone concentration detector of a kind of single light source of the present utility model
Fig. 3 is the detection cell structural representation of the embodiment of the low concentration ozone concentration detector of a kind of single light source of the present utility model shown in Fig. 1
Fig. 4 is ultraviolet lamp tube preheating and the zeroing condition responsive time diagram of the ozone concentration instrument of utility model
In Fig. 1-3,1 is detection cell, and 2 is ultraviolet lamp house, 201 is ultraviolet lamp tube, and 202 is light hole, and 3 is air chamber, 31 is air intake opening, and 32 is gas outlet, and 4 is ultraviolet light intensity probe, 5 is the first gas shunt device, 6 is the second gas shunt device, and 7 is gas path switching device, and 8 is zero Flash Gas Compression Skid System, 9 is signal amplifier, 10 is AD converter, and 11 is control treatment module, and 12 is display device, 13 is air pump, 14 is temperature sensor, and 15 is pressure transducer, and 16 is flow sensor, 17 is ozone breaker, and 18 is 485 communication devices.
Embodiment
Below in conjunction with accompanying drawing 1-4, an embodiment of the low concentration ozone concentration detector of single light source of the present utility model is described in detail.
Embodiment one:
As illustrated in fig. 1-3, a low concentration ozone concentration detector for single light source, comprises the first gas shunt device 5, zero Flash Gas Compression Skid System 8, second gas shunt device 6, gas path switching device 7, detection cell 1, signal amplifier 9, AD converter 10, flow sensor 16, temperature sensor 14, pressure transducer 15, control treatment module 11, display device 12 and an air pump 13, described detection cell 1 comprises quartz burner 201 and ultraviolet lamp house 2, air chamber 3 and ultraviolet light intensity probe 4, described air chamber 3 is elongate channel of a closed at both ends, in described ultraviolet lamp house 2, quartz burner 201 is set, ultraviolet lamp house 2 is offered light hole 202 and aim at the first end of air chamber 3 also vertically, the second end of air chamber aims at ultraviolet light intensity probe and vertically, two ends of air chamber 3 are can be uv-transmitting, close two end positions of air chamber arrange air intake opening 31 and gas outlet 32 respectively, and the output terminal of described ultraviolet light intensity probe 4 is connected with the input end of signal amplifier 9, and the output terminal of signal amplifier 9 is connected with the input end of AD converter 10, the input end of described first gas shunt device 5 is connected with source of the gas, first output terminal of the first gas shunt device 5 is connected with the input end of zero Flash Gas Compression Skid System 8, the output terminal of zero Flash Gas Compression Skid System 8 is connected with the input end of gas path switching device 7, and described zero Flash Gas Compression Skid System 8 comprises the ozone breaker and filtrator that are linked in sequence, second output terminal of described first gas shunt device 5 is connected with the input end of the second gas shunt device 6, first output terminal of the second gas shunt device 6 is connected with the input end of gas path switching device 7, the output terminal of described gas path switching device 7 is connected with the air intake opening 31 of air chamber 3, described temperature sensor 14 presses close to the outside surface of air chamber 3 for detecting the temperature of gas in air chamber 3, described pressure transducer 15 is connected with the second output terminal of the second gas shunt device 6, the input port of described flow sensor 16 is connected with the gas outlet 32 of air chamber 3, the delivery outlet of described flow sensor 16 is connected with air pump 13, described AD converter 10, flow sensor 16, temperature sensor 14, pressure transducer 15 is also connected with the input end of described control treatment module 11, display device 12, quartz burner 2 and gas path switching device 7 are connected with the output terminal of control treatment module 11.Described display device 12 is digital tube display device, also can be that other display device is for showing the ozone concentration of mensuration.In order to the total contained corrosion of ozone gas flow sensor of the gas preventing from testing rear discharge and the pollution to air, in the present embodiment, ozone breaker is set between described flow sensor 16 and the gas outlet 32 of air chamber.
In order to reach good technique effect, improving precision, suitably can lengthen the length of air chamber.In the present embodiment, preferably, described air chamber is made up of quartz glass, and the length of described air chamber is between 100mm ~ 150mm, and its outside surface has lighttight coating.Also lighttight coating can be replaced at air chamber outside surface coated one deck light shield layer in practical application.
In the present embodiment, preferably, described quartz burner is ultraviolet wavelength 254nm and does not produce the quartz burner of ozone gas; Described ultraviolet light intensity probe is the ultraviolet photodiode of high selectivity low-dark current; Described AD converter be 24 or more seniority AD converter with improve detect precision;
In the present embodiment, preferably, described signal amplifier 9 and AD converter 10 are integrated in described control treatment module 11, with simplified apparatus structure and reducing costs.As shown in Figure 2.
Described signal amplifier 9 is programmable signal amplifiers, and signal amplifier described in practical application also can be the signal amplifier of other types.
Below in conjunction with accompanying drawing 1-4, the course of work of the low concentration ozone concentration detector of single light source of the present utility model is briefly described:
As shown in fig. 1, the low concentration ozone concentration detector of single light source is, after powering on, control treatment module drive air pump 13 starts, gas to be measured is drawn in equipment after starting by air pump 13, the gas to be measured sucked after the first gas shunt device 5 is divided into two-way, and first via L1 directly connects the second gas shunt device 6, second road L2 and receives zero Flash Gas Compression Skid System.Zero Flash Gas Compression Skid System in the present embodiment is the ozone breaker and filtrator that are linked in sequence, and the gas exported after ozone breaker and filtrator is ozone free gas (being zero gas), and described zero gas L3 accesses one end of gas switching device shifter 7; First via gas L1 is divided into again tow channel gas L4 and L5 after receiving the second gas shunt device 6, wherein pressure transducer 15 is received on L4 road, described pressure transducer 15 detects the force value of gas L4 and the force value recorded is transferred to control treatment module 11, and another road gas L5 receives the other end of gas switching device shifter 7 as detected gas; By arranging control treatment module 11 or controlling to make gas switching device shifter 7 by detected gas L5 within a period of time, by zero gas L3 in another a period of time; Gas after gas switching device shifter 7 enters in the air chamber 3 of detection cell 1, has temperature sensor 14 can measure the temperature of gas in air chamber 3 and the temperature recorded is passed to control treatment module 11 in detection cell 1; In air chamber 3, the gas L5 that Different periods is detected and zero gas L3 due to absorb ultraviolet light intensity differ, make ultraviolet light intensity pop one's head in 4 different gas by time the signal that detects different, signal forms corresponding concentration through control treatment resume module, shown by digital tube display device 16 or communication device again, can also by communication device transfer control signal or the ozone concentration detected value signal.In the figure of this enforcement, described communication device is 485 communication devices 18, and it also can be other communication device.
The gas that the gas outlet 32 of described air chamber 3 gives off becomes gas not ozoniferous after ozone breaker, then through flow sensor 16 and air pump 13, is finally discharged in air; The flow signal recorded is passed to control treatment module 11 by described flow sensor, process through control treatment module 11 pairs of flow signals, equipment is made to obtain real-time traffic, thus the make-and-break time of gas switching device shifter 7 is controlled according to the change of flow, control tested gas and the zero gas time through detection cell 1, thus ensure that the unicity of the gas detecting sampling, the situation that there will not be detected gas and zero gas phase to mix mutually, guarantees the signal reliability that ultraviolet light intensity probe detects.
The low concentration ozone concentration detector of single light source of the present utility model after tested, has stable performance, the features such as precision is high, volume is little, easy to carry.And advantage is obvious on the preheating time and zero point stability of ultraviolet lamp tube, as shown in the ultraviolet lamp tube preheating of Fig. 4 and zeroing condition responsive time diagram, adopt the low concentration ozone concentration detector of the single light source of technical solutions of the utility model, the preheating of its quartz burner, substantially 2 minutes time, just reach relatively stable, and after ultraviolet lamp tube steady operation, ozone concentration instrument zero point is almost without drift.And existing ozone concentration instrument, its start to reach quartz burner preheating and zero point stability generally needs 5 minutes or longer time.
Structure is simple, measurement is accurate, equipment cost is low, the response time is short, the rift-free advantage of zero point stability to adopt the ozone concentration tester of technical solutions of the utility model to have, by changing the length of air chamber in detection cell, the low concentration ozone concentration detector of the single light source of technical solutions of the utility model accurately can be measured various concentration level and else contain ozone gas, the particularly measurement of drop ozone gas concentration.
Claims (14)
1. a low concentration ozone concentration detector for single light source, is characterized in that: comprise the first gas shunt device (5), zero Flash Gas Compression Skid System (8), the second gas shunt device (6), gas path switching device (7), detection cell (1), signal amplifier (9), AD converter (10), flow sensor (16), temperature sensor (14), pressure transducer (15), control treatment module (11), display device (12) and an air pump (13), described detection cell (1) comprises quartz burner (201) and ultraviolet lamp house (2), air chamber (3) and ultraviolet light intensity probe (4), described air chamber (3) is the elongate channel of a closed at both ends, in described ultraviolet lamp house (2), quartz burner (201) is set, ultraviolet lamp house (2) is offered light hole (202) and aim at the first end of air chamber (3) also vertically, the second end of air chamber (3) aims at ultraviolet light intensity probe (4) and vertically, two ends of described air chamber (3) are can be uv-transmitting, close two end positions of air chamber (3) arrange air intake opening (31) and gas outlet (32) respectively, the output terminal of described ultraviolet light intensity probe (4) is connected with the input end of signal amplifier (9), and the output terminal of signal amplifier (9) is connected with the input end of AD converter (10), the input end of described first gas shunt device (5) is connected with gas to be measured, first output terminal of the first gas shunt device (5) is connected with the input end of zero Flash Gas Compression Skid System (8), and the output terminal of zero Flash Gas Compression Skid System (8) is connected with the input end of gas path switching device (7), second output terminal of the first gas shunt device (5) is connected with the input end of the second gas shunt device (6), first output terminal of the second gas shunt device (6) is connected with the input end of gas path switching device (7), the output terminal of described gas path switching device (7) is connected with the air intake opening (31) of air chamber (3), described temperature sensor (14) presses close to the outside surface of air chamber (3) for detecting the temperature of air chamber (3) interior gas, described pressure transducer (15) is connected with the second output terminal of the second gas shunt device (6), the input port of described flow sensor (16) is connected with the gas outlet (32) of air chamber (3), the delivery outlet of described flow sensor (16) is connected with air pump (13), described AD converter (10), flow sensor (16), temperature sensor (14), pressure transducer (15) is also connected with the input end of described control treatment module (11), display device (12), quartz burner (201) and gas path switching device (7) are connected with the output terminal of control treatment module (11).
2. the low concentration ozone concentration detector of single light source as claimed in claim 1, is characterized in that: described ultraviolet light intensity probe (4) is the ultraviolet photodiode of high selectivity low-dark current.
3. the low concentration ozone concentration detector of single light source as claimed in claim 1, is characterized in that: described quartz burner (201) is ultraviolet wavelength 254nm and does not produce the quartz burner of ozone gas.
4. the low concentration ozone concentration detector of single light source as claimed in claim 1, is characterized in that: described AD converter (10) is the AD converter of 24 or more seniority.
5. the low concentration ozone concentration detector of single light source as claimed in claim 1, is characterized in that: described signal amplifier (9) is programmable signal amplifier.
6. the low concentration ozone concentration detector of single light source as claimed in claim 1, is characterized in that: described zero Flash Gas Compression Skid System (8) comprises the ozone breaker and filtrator that are linked in sequence.
7. the low concentration ozone concentration detector of single light source as claimed in claim 1, is characterized in that: arrange ozone breaker between the gas outlet (32) of described flow sensor (16) and air chamber (3).
8. the low concentration ozone concentration detector of single light source as claimed in claim 1, is characterized in that: described air chamber (3) is made up of quartz glass.
9. the low concentration ozone concentration detector of single light source as claimed in claim 1, is characterized in that: the coated one deck light shield layer of outside surface of described air chamber (3).
10. the low concentration ozone concentration detector of single light source as claimed in claim 9, is characterized in that: described light shield layer is lighttight coating.
The low concentration ozone concentration detector of 11. single light sources as claimed in claim 1, is characterized in that: described display device (12) is digital tube display device.
The low concentration ozone concentration detector of 12. single light sources as claimed in claim 1, is characterized in that: described control treatment module (11) is also connected with communication device.
The low concentration ozone concentration detector of 13. single light sources as claimed in claim 1, is characterized in that: the length of described air chamber (3) is 100mm ~ 150mm.
The low concentration ozone concentration detector of 14. single light sources as claimed in claim 1, is characterized in that: described signal amplifier (9) and/or described AD converter (10) are integrated in described control treatment module (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521026597.3U CN205229033U (en) | 2015-12-11 | 2015-12-11 | Low concentration ozone concentration detection appearance of single light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521026597.3U CN205229033U (en) | 2015-12-11 | 2015-12-11 | Low concentration ozone concentration detection appearance of single light source |
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| Publication Number | Publication Date |
|---|---|
| CN205229033U true CN205229033U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521026597.3U Expired - Fee Related CN205229033U (en) | 2015-12-11 | 2015-12-11 | Low concentration ozone concentration detection appearance of single light source |
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| CN (1) | CN205229033U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458626A (en) * | 2014-12-05 | 2015-03-25 | 力合科技（湖南）股份有限公司 | Gas analyzer |
| CN106872366A (en) * | 2015-12-11 | 2017-06-20 | 新大陆科技集团有限公司 | A kind of low concentration ozone concentration detector of single light source |
| CN108426615A (en) * | 2017-01-27 | 2018-08-21 | 哈米尔顿森德斯特兰德公司 | Sensing flux ozone converter |
| CN109738515A (en) * | 2019-03-22 | 2019-05-10 | 湖北谱芯智能科技有限公司 | Ultrasonic ozone concentration analyzer |
-
2015
- 2015-12-11 CN CN201521026597.3U patent/CN205229033U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458626A (en) * | 2014-12-05 | 2015-03-25 | 力合科技（湖南）股份有限公司 | Gas analyzer |
| CN106872366A (en) * | 2015-12-11 | 2017-06-20 | 新大陆科技集团有限公司 | A kind of low concentration ozone concentration detector of single light source |
| CN108426615A (en) * | 2017-01-27 | 2018-08-21 | 哈米尔顿森德斯特兰德公司 | Sensing flux ozone converter |
| CN109738515A (en) * | 2019-03-22 | 2019-05-10 | 湖北谱芯智能科技有限公司 | Ultrasonic ozone concentration analyzer |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20201211 |