CN203053951U - Device for conveying clean gas or detection gas to detection alarm in real time - Google Patents
Device for conveying clean gas or detection gas to detection alarm in real time Download PDFInfo
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- CN203053951U CN203053951U CN 201320055334 CN201320055334U CN203053951U CN 203053951 U CN203053951 U CN 203053951U CN 201320055334 CN201320055334 CN 201320055334 CN 201320055334 U CN201320055334 U CN 201320055334U CN 203053951 U CN203053951 U CN 203053951U
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- detection alarm
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Abstract
The utility model provides a device for conveying clean gas or detection 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 shell gas inlets are provided, wherein the first gas inlet is connected with a first gas chamber internally provided with an exhaust fan, the first gas chamber is directly connected with a first tee joint inlet comprising a pressure tap; the second gas inlet is connected with a gas room inlet internally provided with a filter through an admission pipe, the gas room outlet is connected with a second gas chamber internally provided with the exhaust fan, and the second gas chamber is connected with a second tee joint inlet comprising the pressure tap through a gas supply pipe; the thee joint outlet with the pressure tap is connected with a detection alarm gas inlet, each pressure tap is respectively connected with corresponding differential pressure transducers through pipelines, the differential pressure transducers are electrically connected with a controller, and the controller is electrically connected with the exhaust fans in the first and second gas chambers. The device provided by the utility model can regulate the detection reference in time, prevents zero drift, accurately detects the located poisonous and harmful environment and prevents detection omission.
Description
Technical field
The utility model relates to a kind of air transporting arrangement, and the especially a kind of device that can carry cleaning gas or detection sample gas in real time to the Detection of Air Quality alarm belongs to and detects the utility appliance technical field.
Background technology
Along with industrial fast development, be difficult to can or leak to discharging in the air handle unclean poisonous, harmful gas with avoiding, thereby pollute to atmospheric environment, directly influence people and rely in the natural ecological environment of existence.If also in time controlled but can accurately detect recruitment poisonous, harmful gas, then 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, then send 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 influence of various factors such as environment such as temperature, humidity, wind speed, gas composition and change, thereby causes " zero shift " of detection reference under the actual environment.How effectively to physical environment or poisonous and harmful environment, especially the environment of toxic and harmful trace or gradual change carries out the correction of detection reference, to suppress " zero shift ", then 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 backgrounds such as environment temperature, humidity, wind speed changes, but for nonmutationedly stretch, gradually changeable is poisonous, the caused faint variation of harmful gas then is difficult to response, that is to say existing detection reference correction, can will faint poisonous, harmful gas response signal think it is that normal environmental exact details variation and being adjusted is ignored by mistake, thereby make detecting device poisonous, harmful gas slowly discharges, the slow gradual change of concentration in particular cases, omission appears in the forfeiture warning function.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 utility model provides a kind of device that can clean gas or detection sample gas in real time to Detection of Air Quality alarm Alternating Transportation, revise detection reference in real time for the detection alarm device, suppress zero shift, and detect in real time.
The utility model is finished by following technical proposal: a kind of device of carrying cleaning gas or detection gas in real time to the detection alarm device, comprise the housing of bringing gas port and gas outlet on it into, it is characterized in that shell air inlet is made as two at least, wherein first air intake opening links to each other with the first gas storehouse of band air exhauster in it, the first gas storehouse directly with its on be with threeway first entrance of pressure tappings to link to each other; Second air intake opening links to each other with the air chamber entrance of band filtrator in it by draft tube, and air chamber outlet links to each other with the second gas storehouse of band air exhauster in it, the second gas storehouse by snorkel with its on be with threeway second entrance of pressure tappings to link to each other; Threeway outlet of band pressure tappings links to each other with detection alarm device air intake opening on it, each pressure tappings is continuous with corresponding differential pressure pick-up respectively by pipeline, differential pressure pick-up is electrically connected with controller, controller and first, air exhauster in the second gas storehouse is electrically connected, in order to open the air exhauster in the second gas storehouse as required, with extraneous air through second air intake opening, in the draft tube suction air chamber, filtration treatment is by the second gas storehouse, snorkel, threeway second entrance, the detection alarm device is sent in the threeway outlet, carry out detection reference (zero point) correction in real time, the air exhauster of cutting out afterwards in the second gas storehouse stops to revise, open the air exhauster in the first gas storehouse again, with the tested air in outside directly through first air intake opening, the first gas storehouse, threeway first entrance, the detection alarm device is sent in the threeway outlet, detect in real time, control the second gas storehouse air inlet simultaneously, guarantee that the gas that enters the detection alarm device only is outside tested air, so alternately, can effectively adjust the detection reference (zero point) of actual air in real time, 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 the pedestal of band cavity in it, first, second entrance that level is located on the pedestal and is communicated with cavity, be vertical on the pedestal and the outlet that is communicated with cavity, a plurality of pressure tappings that level is located on the pedestal and is communicated with cavity, and per two pressure tappings are symmetrical arranged into one group, and continuous 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 the housing.
Described air exhauster, filtrator are commercial product.
The first gas storehouse of described first air intake opening and interior band air exhauster thereof, the threeway that links to each other with the first gas storehouse, constitute one group and detect sample gas transport path, this detection sample gas transport path arranges more than one group or two groups or two groups at housing, in order to link to each other with the corresponding detection alarm device more than or two or two, to be interrupted or continuously air quality to be detected.
Described second air intake opening, draft tube, the air chamber of being with filtrator in it, its interior second gas storehouse of being with air exhauster, the threeway that links to each other with the second gas storehouse by snorkel, constitute one group of detection reference correction with cleaning the gas transport path, this detection reference correction arranges more than one group or two groups or two groups at housing with cleaning gas transport path, in order to link to each other 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 utlity model has following advantage 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 utility model, 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 omission problem that causes because of " zero shift ", the utility model is simple in structure, reliable operation, automaticity height.
Description of drawings
Fig. 1 is the vertical view of the utility model;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the three-port structure figure among Fig. 1;
Fig. 4 is automatically controlled block scheme.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The device of carrying cleaning gas or detection gas in real time to the detection alarm device that the utility model provides, comprise the housing 1 of bringing gas port and gas outlet on it into, it is characterized in that first air intake opening 3 links to each other with the first gas storehouse 4 of band air exhauster in it on the housing 1, the first gas storehouse 4 is directly gone up with it by air supply pipe 6 and is with threeway 7 first entrances 76 of pressure tappings to link to each other, second air intake opening 2 links to each other with air chamber 11 entrances of band filtrator 12 in it by draft tube 5, air chamber 11 outlets link to each other with the second gas storehouse 10 of band air exhauster in it, the second gas storehouse 10 is gone up by snorkel 8 and its and is with threeway 7 second entrances 72 of pressure tappings to link to each other, threeway 7 outlet 77 of band pressure tappings links to each other with detection alarm device air intake opening on it, each pressure tappings is continuous with corresponding differential pressure pick-up 9 respectively by pipeline 14, differential pressure pick-up 9 is electrically connected with controller 13, controller 13 and first, the second gas storehouse 4, air exhauster 15 in 10 is electrically connected; Described threeway 7 comprises the pedestal 71 of band cavity in it, level be located on the pedestal 71 and be communicated with cavity first, second entrance 76,72, the outlet 77 that is vertical on the pedestal 71 and is communicated with cavity, three pairs of pressure tappings 73 that level is located on the pedestal 71 and is communicated with cavity, 74,75, and every pair of (two) pressure tappings is symmetrical arranged into one group, and it is continuous 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 the housing 1 described air exhauster 15, filtrator 12 is commercial product; The first gas storehouse 4 of described first air intake opening 3 and interior band air exhauster thereof, the threeway 7 that links to each other with the first gas storehouse 4, constitute one group and detect sample gas transport path, this detection sample gas transport path is symmetrical arranged two groups at housing, in order to link to each other with two corresponding detection alarm devices, to be interrupted or continuously air quality to be detected; Described second air intake opening 2, draft tube 5, the air chamber 11 of band filtrator 12 in it, the second gas storehouse 10 of band air exhauster in it, the threeway 7 that links to each other with the second gas storehouse 10 by snorkel 8, constitute one group of detection reference correction with cleaning the gas transport path, this detection reference correction arranges two groups with cleaning gas transport path at housing 1, wherein, second air intake opening 2, draft tube 5, air chamber 11 of band filtrator 12 is made as one group at housing 1 in it, and the second gas storehouse 10 of band air exhauster in it, snorkel 8, threeway 7 symmetry on housing is made as two groups, so that continuous with two corresponding detection alarm devices.
When needs carry out detection reference correction (i.e. zeroing), by the controller 13 automatic air exhausters of opening in the second gas storehouse 10 15, with extraneous air in 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 second entrance 72, threeway 7, threeway outlet 77 send into the detection alarm device, in order to carry out detection reference (zero point) correction in real time, after zeroing finished, the air exhauster 15 of cutting out in the second gas storehouse 10 stopped to revise; During detection, by the controller 13 automatic air exhausters of opening in the first gas storehouse 4 15, extraneous air is directly sent into the detection alarm device through first air intake opening 3, the first gas storehouse 4, air supply pipe 6, threeway first entrance 76, threeway 7, threeway outlet 77, detect in real time, so alternately, can adjust the detection reference (zero point) of actual air automatically in real time, prevent the omission that causes because of mistuning whole " zero shift ".
Claims (4)
1. carry the device that cleans gas or detect gas to the detection alarm device in real time for one kind, comprise the housing of bringing gas port and gas outlet on it into, it is characterized in that shell air inlet is made as two at least, wherein first air intake opening links to each other with the first gas storehouse of band air exhauster in it, the first gas storehouse directly with its on be with threeway first entrance of pressure tappings to link to each other; Second air intake opening links to each other with the air chamber entrance of band filtrator in it by draft tube, and air chamber outlet links to each other with the second gas storehouse of band air exhauster in it, the second gas storehouse by snorkel with its on be with threeway second entrance of pressure tappings to link to each other; Threeway outlet of band pressure tappings links to each other with detection alarm device air intake opening on it, and each pressure tappings is continuous with corresponding differential pressure pick-up respectively by pipeline, and differential pressure pick-up is electrically connected with controller, and controller is electrically connected with 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 the pedestal of band cavity in it, first, second entrance that level is located on the pedestal and is communicated with cavity, be vertical on the pedestal and the outlet that is communicated with cavity, a plurality of pressure tappings that level is located on the pedestal and is communicated with cavity, and per two pressure tappings are symmetrical arranged into one group, and continuous 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, the first gas storehouse that it is characterized in that described first air intake opening and interior band air exhauster thereof, the threeway that links to each other with the first gas storehouse, constitute one group and detect sample gas transport path, this detection sample gas transport path arranges more than one group or two groups or two groups at housing, and continuous 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, air chamber, its interior second gas storehouse of being with air exhauster of it is characterized in that described second air intake opening, draft tube, being with filtrator in it, the threeway that links to each other with the second gas storehouse by snorkel, constitute one group of detection reference correction with cleaning the gas transport path, this detection reference correction arranges more than one group or two groups or two groups at housing with cleaning gas transport path, and continuous with the corresponding detection alarm device more than or two or two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055334 CN203053951U (en) | 2013-01-31 | 2013-01-31 | Device for conveying clean gas or detection gas to detection alarm in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320055334 CN203053951U (en) | 2013-01-31 | 2013-01-31 | Device for conveying clean gas or detection gas to detection alarm in real time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053951U true CN203053951U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320055334 Expired - Fee Related CN203053951U (en) | 2013-01-31 | 2013-01-31 | Device for conveying clean gas or detection gas to detection alarm in real time |
Country Status (1)
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| CN (1) | CN203053951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116004A (en) * | 2013-01-31 | 2013-05-22 | 云南无线电有限公司 | Device for conveying cleaning gas or detecting gas to detection alarm in real time |
-
2013
- 2013-01-31 CN CN 201320055334 patent/CN203053951U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103116004A (en) * | 2013-01-31 | 2013-05-22 | 云南无线电有限公司 | Device for conveying cleaning gas or detecting gas to detection alarm in real time |
| CN103116004B (en) * | 2013-01-31 | 2015-07-15 | 云南无线电有限公司 | Device for conveying cleaning gas or detecting gas to detection alarm in real time |
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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: 20130710 Termination date: 20140131 |