CN103116004A - Device for conveying cleaning gas or detecting gas to detection alarm in real time - Google Patents
Device for conveying cleaning gas or detecting gas to detection alarm in real time Download PDFInfo
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- CN103116004A CN103116004A CN2013100381649A CN201310038164A CN103116004A CN 103116004 A CN103116004 A CN 103116004A CN 2013100381649 A CN2013100381649 A CN 2013100381649A CN 201310038164 A CN201310038164 A CN 201310038164A CN 103116004 A CN103116004 A CN 103116004A
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Abstract
The invention provides a device for conveying a cleaning gas or a detecting gas to a detection alarm in real time. The device comprises a shell with gas inlets and a gas outlet, and is characterized in that at least two gas inlets are formed in the shell, wherein the first gas inlet is connected with a first gas cabin which is internally provided with a gas sucker; the first gas cabin is directly connected with a first three-way inlet with a pressure measuring port; the second air inlet is connected a gas chamber inlet through a gas intake tube; the gas chamber inlet is internally provided with a filter; a gas chamber outlet is connected with a second gas cabin which is internally provided with another air sucker; the second gas cabin is connected with a second three-way inlet through a gas conveying tube; the second three-way inlet is provided with another pressure measuring port; a three-way outlet with another pressure measuring port is connected with the gas inlet of the detection alarm; the pressure measuring ports are respectively connected with corresponding pressure difference sensors through pipelines; the pressure difference sensors are electrically connected with a controller; and the controller is electrically connected with the air sucker inside the first and second gas cabins. By utilizing the device, the detection reference can be adjusted in time, zero shifting can be prevented, toxic and harmful environments can be accurately detected, and detection omission can be prevented.
Description
Technical field
The present invention relates to a kind of air transporting arrangement, especially a kind of can in real time to the device of Detection of Air Quality alarm conveying cleaning gas or detection sample gas, belonging to and detect the utility appliance technical field.
Project background
Along with industrial fast development, be difficult to can or leak to discharging in air process unclean poisonous, harmful gas with avoiding, thereby pollute to atmospheric environment, directly affect people and rely in the natural ecological environment of existence.If also in time controlled but can accurately detect recruitment poisonous, harmful gas, be expected to avoid great harm poisonous, that nuisance causes to human society.For this reason, detecting especially urban air-quality of atmospheric environment, is a vital task and effective safeguard procedures.
Existing poisonous, harmful gas detecting instrument, device have varied, and the object that detects is of a great variety, wherein be with detecting instrument, the device of reporting to the police, mostly the air mass signal that collects and the normal air detection reference (being zero point) that sets in advance are compared, when the signal response amplitude that collects surpasses setting threshold values (threshold values thresholding), illustrate that airborne poisonous and harmful substance exceeds standard, and sends sound or visual alarm.Because detection reference is not contain the net air of poisonous harmful gas as detecting background, and background air generally all can be subjected to the impact of the many factors such as environment such as temperature, humidity, wind speed, gas composition and change, thereby causes " zero shift " of detection reference under actual environment.How effectively to physical environment or poisonous and harmful environment, especially the environment of toxic and harmful trace or gradual change, carry out the correction of detection reference, to suppress " zero shift ", is checking detecting instrument or the sensitivity of device, the key technical index of rate of false alarm.The correction of existing detection reference, though being applicable to the backgrounds such as environment temperature, humidity, wind speed changes, but for nonmutationedly stretch, gradually changeable is poisonous, the caused faint variation of harmful gas is difficult to response, that is to say existing detection reference correction, faint poisonous, harmful gas response signal can be thought by mistake be that normal environmental exact details changes and adjusted ignoring, thereby make detecting device poisonous, harmful gas slowly discharges, the slow gradual change of concentration in particular cases, lose warning function, occur undetected.Therefore, must be improved prior art.
Summary of the invention
For poisonous, harmful gas slowly discharges, in the environment of the slow gradual change of concentration, also can accurately detect, the invention provides a kind of can be in real time to Detection of Air Quality alarm Alternating Transportation cleaning gas or detect the device of sample gas, revise in real time detection reference for the detection alarm device, suppress zero shift, and detect in real time.
the present invention completes by following technical proposal: a kind of device from detection gas to the detection alarm device that carry in real time cleaning gas or, the housing that comprises inlet and gas outlet on it, it is characterized in that shell air inlet is made as two at least, wherein the first air intake opening with its in be connected with the first gas storehouse of air exhauster, the first gas storehouse directly with its on be connected with threeway first entrance of pressure tappings, the second air intake opening by draft tube with its in be connected with the air chamber entrance of filtrator, the air chamber outlet with its in be connected with the second gas storehouse of air exhauster, the second gas storehouse by snorkel with its on be connected with threeway second entrance of pressure tappings, threeway outlet with pressure tappings on it is connected with detection alarm device air intake opening, each pressure tappings is connected with corresponding differential pressure pick-up respectively by pipeline, differential pressure pick-up is electrically connected to controller, controller and first, air exhauster in the second gas storehouse is electrically connected to, in order to open as required the air exhauster in the second gas storehouse, with extraneous air through the second air intake opening, in draft tube suction air chamber, filtration treatment is by the second gas storehouse, snorkel, threeway the second entrance, the detection alarm device is sent in the threeway outlet, carry out in real time detection reference (zero point) correction, the air exhauster of cutting out afterwards in the second gas storehouse stops revising, open again the air exhauster in the first gas storehouse, with the tested air in outside directly through the first air intake opening, the first gas storehouse, threeway the first entrance, the detection alarm device is sent in the threeway outlet, detect in real time, control simultaneously the second gas storehouse air inlet, guarantee that the gas that enters the detection alarm device only is outside tested air, so alternately, can effectively adjust in real time the detection reference (zero point) of actual air, prevent that because slowly leaking that the micro-signal that causes is mistaken as be that " zero shift " is adjusted, fail to report thereby cause.
Described threeway comprises in it pedestal with cavity, first, second entrance that level is located on pedestal and is communicated with cavity, be vertical on pedestal and the outlet that is communicated with cavity, a plurality of pressure tappings that level is located on pedestal and is communicated with cavity, and every two pressure tappings are symmetrical arranged into one group, and connected with corresponding differential pressure pick-up by pipeline, send differential pressure pick-up in order to take out high and low two force value.
Described differential pressure pick-up, controller are commercial product, are installed in housing.
Described air exhauster, filtrator are commercial product.
Described the first air intake opening and in the first gas storehouse of air exhauster, the threeway that is connected with the first gas storehouse, consist of one group and detect sample gas transport path, this detection sample gas transport path is arranging on housing more than one group or two groups or two groups, in order to be connected with the corresponding detection alarm device more than or two or two, to be interrupted or continuously air quality to be detected.
Described the second air intake opening, draft tube, in it with the air chamber of filtrator, in it with the second gas storehouse of air exhauster, the threeway that is connected with the second gas storehouse by snorkel, consist of one group of detection reference correction with cleaning the gas transport path, this detection reference correction is arranging on housing more than one group or two groups or two groups with cleaning gas transport path, in order to be connected with the corresponding detection alarm device more than or two or two, to be interrupted or to carry the detection reference correction with cleaning gas to the detection alarm device continuously, with real-time adjustment detection reference, prevent " zero shift ".
the present invention has following advantages and effect: adopt such scheme, can be easily as required, automatically alternately to one or two or many detection alarm devices carry the detection reference correction with cleaning gas or/and detect sample gas, with timely adjustment detection reference, prevent " zero shift ", realize accurately detecting, especially poisonous, reach poisonous under the harmful gas environment, harmful gas slowly discharges, the slow gradual change of concentration in particular cases, also can be by conveying of the present invention, make the detection alarm device in time carry out the zeroing of detection reference, thereby accurately detect of living in poisonous, hostile environment and nonmutationed stretching, gradually changeable is poisonous, hostile environment, fundamentally solve the undetected problem that causes because of " zero shift ", the present invention is simple in structure, reliable operation, automaticity is high.
Description of drawings
Fig. 1 is the present invention's vertical view;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the three-port structure figure in Fig. 1;
Fig. 4 is automatically controlled block scheme.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
device from detection gas to the detection alarm device that carry in real time cleaning gas or provided by the invention, the housing 1 that comprises inlet and gas outlet on it, it is characterized in that the first air intake opening 3 on housing 1 with its in be connected with the first gas storehouse 4 of air exhauster, the first gas storehouse 4 by air supply pipe 6 directly with its on be connected with threeway 7 first entrances 76 of pressure tappings, the second air intake opening 2 by draft tube 5 with its in be connected with air chamber 11 entrances of filtrator 12, air chamber 11 outlet with its in be connected with the second gas storehouse 10 of air exhauster, the second gas storehouse 10 by snorkel 8 with its on be connected with threeway 7 second entrances 72 of pressure tappings, threeway 7 outlets 77 with pressure tappings on it are connected with detection alarm device air intake opening, each pressure tappings is connected with corresponding differential pressure pick-up 9 respectively by pipeline 14, differential pressure pick-up 9 is electrically connected to controller 13, controller 13 and first, the second gas storehouse 4, air exhauster 15 in 10 is electrically connected to, described threeway 7 comprises in it pedestal 71 with cavity, level be located on pedestal 71 and be communicated with cavity first, the second entrance 76, 72, the outlet 77 that is vertical on pedestal 71 and is communicated with cavity, three pairs of pressure tappings 73 that level is located on pedestal 71 and is communicated with cavity, 74, 75, and every pair of (two) pressure tappings is symmetrical arranged into one group, and connected with corresponding three differential pressure pick-ups 9 by corresponding pipeline 14 respectively, in order to take out high, low two force value are sent differential pressure pick-up 9, described differential pressure pick-up 9, controller 14 is commercial product, be installed in housing 1, described air exhauster 15, filtrator 12 is commercial product, described the first air intake opening 3 and in the first gas storehouse 4 of air exhauster, the threeway 7 that is connected with the first gas storehouse 4, consist of one group and detect sample gas transport path, this detection sample gas transport path is symmetrical arranged two groups on housing, in order to be connected with two corresponding detection alarm devices, to be interrupted or continuously air quality to be detected, described the second air intake opening 2, draft tube 5, in it with the air chamber 11 of filtrator 12, in it with the second gas storehouse 10 of air exhauster, the threeway 7 that is connected with the second gas storehouse 10 by snorkel 8, consist of one group of detection reference correction with cleaning the gas transport path, this detection reference correction arranges two groups with cleaning gas transport path on housing 1, wherein, the second air intake opening 2, draft tube 5, air chamber 11 with filtrator 12 in it is made as one group on housing 1, and in it with the second gas storehouse 10 of air exhauster, snorkel 8, threeway 7 symmetry on housing is made as two groups, in order to be connected with two corresponding detection alarm devices.
When needs carry out detection reference correction (i.e. zeroing), automatically open air exhauster 15 in the second gas storehouse 10 by controller 13, with extraneous air in the second air intake opening 2, draft tube 5 suction air chambers 11, after filter 12 filtration treatment, through the second gas storehouse 10, snorkel 8, threeway the second entrance 72, threeway 7, threeway outlet 77 send into the detection alarm device, revise in order to carry out in real time detection reference (zero point), return to zero complete after, the air exhausters 15 of cutting out in the second gas storehouse 10 stop correction; During detection, automatically open air exhauster 15 in the first gas storehouse 4 by controller 13, extraneous air is directly sent into the detection alarm device through the first air intake opening 3, the first gas storehouse 4, air supply pipe 6, threeway the first entrance 76, threeway 7, threeway outlet 77, detect in real time, so alternately, can automatically in real time adjust the detection reference (zero point) of actual air, prevent because of mistuning whole " zero shift " cause undetected.
Claims (4)
1. carry to the detection alarm device device that cleans gas or detect gas in real time for one kind, the housing that comprises inlet and gas outlet on it, it is characterized in that shell air inlet is made as two at least, wherein the first air intake opening with its in be connected with the first gas storehouse of air exhauster, the first gas storehouse directly with its on be connected with threeway first entrance of pressure tappings; The second air intake opening by draft tube with its in be connected with the air chamber entrance of filtrator, the air chamber outlet with its in be connected with the second gas storehouse of air exhauster, the second gas storehouse by snorkel with its on be connected with threeway second entrance of pressure tappings; Threeway outlet with pressure tappings on it is connected with detection alarm device air intake opening, and each pressure tappings is connected with corresponding differential pressure pick-up respectively by pipeline, and differential pressure pick-up is electrically connected to controller, and controller is electrically connected to air exhauster in first, second gas storehouse.
2. according to claim 1ly in real time carry cleaning gas or detect the device of gas to the detection alarm device, it is characterized in that described threeway comprises in it pedestal with cavity, first, second entrance that level is located on pedestal and is communicated with cavity, be vertical on pedestal and the outlet that is communicated with cavity, a plurality of pressure tappings that level is located on pedestal and is communicated with cavity, and every two pressure tappings are symmetrical arranged into one group, and connected with corresponding differential pressure pick-up by pipeline.
3. according to claim 1ly in real time carry cleaning gas or detect the device of gas to the detection alarm device, it is characterized in that described the first air intake opening and in the first gas storehouse of air exhauster, the threeway that is connected with the first gas storehouse, consist of one group and detect sample gas transport path, this detection sample gas transport path is arranging on housing more than one group or two groups or two groups, and connected with the corresponding detection alarm device more than or two or two.
4. according to claim 1ly in real time carry cleaning gas or detect the device of gas to the detection alarm device, it is characterized in that described the second air intake opening, draft tube, in it with the air chamber of filtrator, in it with the second gas storehouse of air exhauster, the threeway that is connected with the second gas storehouse by snorkel, consist of one group of detection reference correction with cleaning the gas transport path, this detection reference correction is arranging on housing more than one group or two groups or two groups with cleaning gas transport path, and connected with the corresponding detection alarm device more than or two or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310038164.9A CN103116004B (en) | 2013-01-31 | 2013-01-31 | Device for conveying cleaning gas or detecting gas to detection alarm in real time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310038164.9A CN103116004B (en) | 2013-01-31 | 2013-01-31 | Device for conveying cleaning gas or detecting gas to detection alarm in real time |
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| CN103116004A true CN103116004A (en) | 2013-05-22 |
| CN103116004B CN103116004B (en) | 2015-07-15 |
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| CN201310038164.9A Active CN103116004B (en) | 2013-01-31 | 2013-01-31 | Device for conveying cleaning gas or detecting gas to detection alarm in real time |
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| CN203053951U (en) * | 2013-01-31 | 2013-07-10 | 云南无线电有限公司 | Device for conveying clean gas or detection gas to detection alarm in real time |
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2013
- 2013-01-31 CN CN201310038164.9A patent/CN103116004B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050000981A1 (en) * | 2003-07-02 | 2005-01-06 | Industrial Scientific Corporation | Apparatus and method for generating calibration gas |
| CN101162200A (en) * | 2007-05-10 | 2008-04-16 | 沈阳东宇集团股份有限公司 | System for nitrogen oxide analysis by chemiluminescence method |
| CN101900716A (en) * | 2010-06-04 | 2010-12-01 | 嘉兴学院 | Online analysis system and method for monitoring harmful gases in livestock and poultry farm |
| CN101949843A (en) * | 2010-09-02 | 2011-01-19 | 武汉市天虹仪表有限责任公司 | Gas circuit system for measuring automotive tail gas in real time |
| WO2012059425A1 (en) * | 2010-11-01 | 2012-05-10 | Koninklijke Philips Electronics N.V. | A method of calibrating an air sensor |
| CN201943654U (en) * | 2011-01-28 | 2011-08-24 | 瞿建华 | Pressure-taking and sampling combined valve |
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| CN103116004B (en) | 2015-07-15 |
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