CN101556220B - Air pumping, sampling and detecting device and quick pumping and sampling system and method - Google Patents
Air pumping, sampling and detecting device and quick pumping and sampling system and method Download PDFInfo
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- CN101556220B CN101556220B CN2009100650371A CN200910065037A CN101556220B CN 101556220 B CN101556220 B CN 101556220B CN 2009100650371 A CN2009100650371 A CN 2009100650371A CN 200910065037 A CN200910065037 A CN 200910065037A CN 101556220 B CN101556220 B CN 101556220B
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Abstract
The invention discloses an air pumping, sampling and detecting device and a quick pumping and sampling system and a method thereof; the quick pumping and sampling system comprises a pumping passage provided with an air-outlet end and an air-inlet end, and an air pump connected between the air-outlet end and the air-inlet end of the pumping passage; the pumping passage is also connected with a sampling pipe used for supplying air for a detecting device; the quick pumping and sampling system is provided with at least two groups of pumping passages; each group of the pumping passages comprise a plurality of pumping pipes with an air-inlet sampling head and an air-inlet control valve; the tail ends of all the pumping pipes in the same group are gathered in an one-way air pipe and communicated to the air inlet of the corresponding air pump; in each group of the pumping passages, the one-way air pipe at the air-inlet side of each air pump or the air pipe at the air-outlet side thereof is communicated with a pipe for containing the air to be sampled; and each pipe for containing the air to be sampled is communicated with the sampling pipe by a multi-ported control valve. The invention is remarkably characterized by accurate measurement, quick response, stability and reliability and the like.
Description
Technical field
The present invention relates to the gas detection technology that the laggard promoting the circulation of qi body of sampling analyzes of bleeding of multitube road in the industries such as electric power, oil, chemical industry, coal.
Background technology
The bleed sampling system of bleeding of sampling detecting device of tradition adopts single-channel mode, generally be to realize that by an aspiration pump and a gas sensor gas sample detects, the Chinese invention patent of publication number CN101290273 disclosed " bundle tube automatically controlled air extraction sampling; flusher " for example, when bleeding the testing state, the beam tube of respectively bleeding of this device is communicated with the single channel connecting pipe by the two position three-way valve group, the single channel connector tube is communicated with sampling apparatus by stopple coupon, and the gas of the beam tube of respectively bleeding passes through the single channel connecting pipe behind two position three-way valve group gating, stopple coupon enters sampling apparatus.On address the sampler of similarly bleeding in when work, single pass stopple coupon is connected bleeds between beam tube and the sampling apparatus, after the gas sample of a last exhaust tube is finished, the gas of next exhaust tube need be flowed through and could be arrived sampling apparatus behind the pipeline of single channel stopple coupon of certain-length (according to the situation), in some cases, when the length of single channel stopple coupon is longer, sample as mine gas, influenced the work efficiency of the sampling system of bleeding the stand-by period that makes sampling apparatus than length, therefore there is limitation in the existing sampling system of bleeding: the detection of organizing gas can only be carried out one by one, reacts rapid inadequately.The bleed sampling detecting device and the sampling system of bleeding fast thereof
Summary of the invention
The object of the present invention is to provide the grouping of a kind of hyperchannel bleed and the alternating sampling that divides into groups to shorten bleed sampling detecting device and bleed fast sampling system, the method for time of exchanging gas.
Technical scheme of bleeding sampling system fast of the present invention is: a kind of sampling system of bleeding fast, comprise and having into, the bleed-off passage of outlet side and be connected advancing of bleed-off passage, air pump between the outlet side, also be connected with the stopple coupon that is used for to the pick-up unit air feed on the bleed-off passage, described bleed-off passage has at least two groups, every group of bleed-off passage includes the many exhaust tubes that have air inlet sampling head and air intake control valve, the end of all exhaust tubes gathers to the single channel tracheae and feeds the air intake opening of corresponding aspiration pump on the same group, each is organized in the bleed-off passage to be communicated with on the tracheae of the single channel tracheae of the air inlet side of each aspiration pump or the side of giving vent to anger and remains stopple coupon, treats that respectively stopple coupon passes through many logical operation valves and is communicated with described stopple coupon.
The gas outlet of described aspiration pump is provided with gas outlet, and gas outlet is provided with gas exhausting valve.
Described bleed-off passage is first, second two groups of bleed-off passages, and the described how logical operation valve for the treatment of that stopple coupon connects is the two-bit triplet solenoid valve.
The technical scheme of the sampling detecting device of bleeding of the present invention is: a kind of sampling detecting device of bleeding, comprise bleed sampling system and gas detection part, the described sampling system of bleeding comprises having into, the bleed-off passage of outlet side and be connected advancing of bleed-off passage, air pump between the outlet side, connect the gas detection part by stopple coupon on the bleed-off passage, described bleed-off passage has at least two groups, every group of bleed-off passage includes the many exhaust tubes that have air inlet sampling head and air intake control valve, the end of all exhaust tubes gathers to the single channel tracheae and feeds the air intake opening of corresponding aspiration pump on the same group, each is organized in the bleed-off passage to be communicated with on the gas outlet of the single channel tracheae of the air inlet side of each aspiration pump or the side of giving vent to anger and remains stopple coupon, treats that respectively stopple coupon passes through many logical operation valves and is communicated with described stopple coupon.
The gas outlet of described aspiration pump is provided with gas outlet, and gas outlet is provided with gas exhausting valve.
Described bleed-off passage is first, second two groups of bleed-off passages, and the described how logical operation valve for the treatment of that stopple coupon connects is the two-bit triplet solenoid valve, and the gas outlet of two-bit triplet solenoid valve communicates by the air intake opening of stopple coupon with the gas detection part.
Described gas detection section is divided into gas sensor.
Technical scheme of bleeding sampling method fast of the present invention is: a kind of sampling method of bleeding fast mainly may further comprise the steps:
(1) many are used for being divided at least two group bleed-off passages from the exhaust tube of the source of the gas extracting gases to be measured of correspondence, and with each group bleed-off passage one by one correspondence be communicated to each and treat stopple coupon, from every group of bleed-off passage, select an exhaust tube, open each selected exhaust tube and bleed, the selected gas that each exhaust tube extracted is delivered to and corresponding respectively the treating in the stopple coupon of each group bleed-off passage from the source of the gas to be measured of each correspondence;
(2) from remaining stopple coupon, select one with many logical operation valves, the selected total stopple coupon that the gas input in the stopple coupon is used for being communicated with pick-up unit for the treatment of is taken a sample, and other are treated that gas resides in the stopple coupon and treat to enter in the stopple coupon state to be measured, and stop described other to treat that the gas in the stopple coupon enters total stopple coupon with many logical operation valves;
(3) after sampling is finished, from previous sample, select one piece in the not selected institute stopple coupon that remains with many logical operation valves, treat that with selected gas input stopple coupon in the stopple coupon takes a sample next time, and with many logical operation valves stop selected treat stopple coupon in addition the gas in the stopple coupon that remains enter total stopple coupon; When gas substitutes in the stopple coupon, that selected in that group bleed-off passage of the stopple coupon place root exhaust tube for the treatment of selected in the previous sample is had no progeny with the connection pass of corresponding source of the gas to be measured, select on the same group an other exhaust tube again and open connection with corresponding source of the gas to be measured, this gas of newly choosing exhaust tube and being extracted is delivered to treating in the stopple coupon of this group bleed-off passage correspondence.
(4) repeating step 3.
Described exhaust tube is divided into two groups of bleed-off passages and corresponding respectively two different stopple coupons for the treatment of, treats that to described two stopple coupon chooses in the mode of gating alternately by two-position three way magnetic valve.
The described bleed-off passage of respectively organizing also is provided with and the gas outlet one to one for the treatment of that stopple coupon is communicated with, and the described gas that enters each state to be measured can be discharged through corresponding gas outlet.
The invention solves the latency issue of the existing sampling system of bleeding, shortened sample time to greatest extent.It is divided into bleed-off passage more than two groups with several exhaust tubes, every group of shared aspiration pump and an exhaust outlet, treat stopple coupon for one, when the gas in one group of bleed-off passage is detecting, gas is transported to and treats that stopple coupon is to be measured in other group bleed-off passages, and respectively treat stopple coupon can be arranged to by many logical operation valves cross be connected to total stopple coupon than short pipeline, so just can after finishing detection, the gas in last one group of bleed-off passage at once the gas in the stopple coupon for the treatment of in next group bleed-off passage be carried out gating control after total stopple coupon is selected and recommended into the test section by many logical operation valves.Originally the situation that bleeding the sampling detecting device and the sampling system of bleeding fast thereof can be continuously, gas leaks in the on-line tracing production run stably and accurately has distinguishing features such as measuring accurately, be swift in response, be reliable and stable.
Description of drawings
Fig. 1 is the structural representation of the sampling detecting device of bleeding of the present invention.
Embodiment
As shown in Figure 1, the sampling detecting device of bleeding of the present invention comprises bleed sampling system and gas detection part, and the gas detection part is made of the gas sensor 25 with air inlet/outlet.
The sampling system of bleeding comprise first and second the group bleed-off passage 110,111 and with corresponding respectively first and second aspiration pump 112,113 that communicates of every group of bleed-off passage, every group of bleed-off passage includes the many exhaust tubes that have air inlet sampling head 21, each exhaust tube on the same group crosses by two three-way electromagnetic valves 22 and snorkel and is communicated to the air intake opening of corresponding aspiration pump, each exhaust tube of first group of bleed-off passage 110 is the 1st, 3,5,7,9,11 exhaust tubes, and each exhaust tube of second group of bleed-off passage 111 is the 2nd, 4,6,8,10,12 exhaust tubes.
The outlet side of first aspiration pump 112 is communicated with downtake pipe 14 and first respectively by threeway and treats stopple coupon 15, the outlet side of second aspiration pump 113 is communicated with second exhaust pipe 16 and second respectively by threeway and treats stopple coupon 17, is respectively equipped with two three-way electromagnetic valves 24,28 that are used to control the exhausr port break-make on first and second gas outlet 14,16.First and second treats that stopple coupon 15,17 communicates with two air intake openings of two-position three way magnetic valve 26 respectively, and single gas outlet of two-position three way magnetic valve 26 communicates with the air intake opening of gas sensor 25 by total stopple coupon 29.
Concrete workflow of the present invention is as follows: two three-way electromagnetic valves of inlet end of opening the 2nd exhaust tube of the 1st exhaust tube of first group of bleed-off passage 110 and second group of bleed-off passage 111 simultaneously, two-way gas enters first respectively by two three-way electromagnetic valves separately, second aspiration pump 112,113, two three-way electromagnetic valves 24 that system controls on the downtake pipe 14 of first group of bleed-off passage 110 are closed, two three-way electromagnetic valves 28 on the second exhaust pipe 16 of second group of bleed-off passage 111 are opened, and two-position three way magnetic valve 26 carries out gating control, first treats that the stopple coupon 15 and the gas outlet of two-position three way magnetic valve 26 are switched on, second treats that stopple coupon 17 and being communicated with of two-position three way magnetic valve 26 are turned off, the 1st exhaust tube of such first group of bleed-off passage 110 just enters gas sensor 25 by two-position three way magnetic valve 26, and the gas of second group of bleed-off passage 111 just directly passes through two three-way electromagnetic valves, 28 outflows of the outlet of second exhaust pipe 16, also flows into simultaneously and treats that stopple coupon 17 enters state to be measured.
After the gas detection of the 1st exhaust tube of first group of bleed-off passage 110 finishes, two three-way electromagnetic valves 24 of downtake pipe 14 outlets of first group of bleed-off passage 10 are opened, the gas of the 1st bleed-off passage is discharged from, two three-way electromagnetic valves 28 of second exhaust pipe 16 outlets of second group of bleed-off passage 111 are closed, and two-position three way magnetic valve 26 carries out gating control, first treats that stopple coupon 15 and being communicated with of two-position three way magnetic valve 26 are turned off, second treats that the stopple coupon 17 and the gas outlet of two-position three way magnetic valve 26 are switched on, and the gas of the 2nd exhaust tube of second group of bleed-off passage 111 enters gas sensor 25 by two-position three way magnetic valve 26 after treating stopple coupon 17.Meanwhile gas access two three-way electromagnetic valves of the 3rd exhaust tube of first group of bleed-off passage 110 are opened, this channel gas enters the measurement state of preparing, after the gas detection for the treatment of the 2nd exhaust tube of second group of bleed-off passage 111 finishes, two three-way electromagnetic valves 28 of the second exhaust pipe 16 of second group of bleed-off passage 111 are opened, and two three-way electromagnetic valves 24 of the second exhaust pipe 14 of first group of bleed-off passage 110 are closed, and the gas of the 3rd exhaust tube of such first group of bleed-off passage 110 just enters gas sensor 25 by two-position three way magnetic valve 26.Gas in two groups of bleed-off passages is so cycle alternation sampling of bleeding like this.
Bleed-off passage in the foregoing description is two groups, and supporting two-position three way magnetic valve carries out two groups of gating operations for the treatment of stopple coupon that bleed-off passage connected.The how logical operation valve group that can certainly constitute with the many valves of how logical operation valve or multitube road of two-position three way magnetic valve other kinds commonly used unexpectedly, commercially available.And those of ordinary skill in the art, be not difficult to determine to have the technical scheme of the exhaust tube more than three groups according to content disclosed by the invention, the technical scheme of three groups of above exhaust tubes can become the exhaust tube man-made division more than three groups according to actual needs, at this moment need to carry out the how logical operation valve of any gating to the sampling pipe for the treatment of more than three according to the grouping situation of exhaust tube is next supporting, the how logical operation valve group that constitutes of the many valves in multidigit various way solenoid valve or multitube road is for example carried out each only logical one and the gating of closing other stopple coupons to be measured is controlled by many logical operation valves or valve group to the total stopple coupon on all stopple coupons to be measured and its gas outlet; The Comprehensive Control of the line arrangement mode of above various feasible programs and each valve or valve group all is prior aries that the general field technician is grasped, and describes in detail no longer one by one herein.
In addition, the link position of the inlet end for the treatment of stopple coupon in the foregoing description in the single channel tracheae of bleed-off passage is the side of giving vent to anger of the aspiration pump that communicates with gas outlet after aspiration pump, before the exhausr port, because the position of aspiration pump on the single channel tracheae is general relatively near exhausr port generally speaking, such layout purpose is to enter stopple coupon to be measured in order to reduce the length for the treatment of stopple coupon and to be convenient to gas.But; such layout is not got rid of in some cases; the link position of inlet end in the single channel tracheae of bleed-off passage for the treatment of stopple coupon is on the unipath tracheae of the aspiration pump air inlet side before the aspiration pump; when not considering that duct length and aspiration pump are a plurality of; such arrangement is feasible; but such variation belongs to the technical characterictic that is equal to replacement; compare with technical scheme of the present invention, only have to be equal to and replace the different technical scheme of feature and must belong to protection scope of the present invention.
Claims (10)
1. sampling system of bleeding fast, comprise and having into, the bleed-off passage of outlet side and be connected advancing of bleed-off passage, aspiration pump between the outlet side, also be connected with the stopple coupon that is used for to the pick-up unit air feed on the bleed-off passage, it is characterized in that: described bleed-off passage has at least two groups, every group of bleed-off passage includes the many exhaust tubes that have air inlet sampling head and air intake control valve, the end of all exhaust tubes gathers to the single channel tracheae and feeds the air intake opening of corresponding aspiration pump on the same group, each is organized in the bleed-off passage to be communicated with on the tracheae of the side of giving vent to anger of each aspiration pump and remains stopple coupon, treats that respectively stopple coupon passes through many logical operation valves and is communicated with described stopple coupon.
2. the sampling system of bleeding fast according to claim 1 is characterized in that: also be communicated with gas outlet on the tracheae of the side of giving vent to anger of described aspiration pump, gas outlet is provided with gas exhausting valve.
3. the sampling system of bleeding fast according to claim 1 and 2, it is characterized in that: described bleed-off passage is first, second two groups of bleed-off passages, the described how logical operation valve for the treatment of that stopple coupon connects is the two-bit triplet solenoid valve.
4. sampling detecting device of bleeding, comprise bleed sampling system and gas detection part, the described sampling system of bleeding comprises having into, the bleed-off passage of outlet side and be connected advancing of bleed-off passage, aspiration pump between the outlet side, connect the gas detection part by stopple coupon on the bleed-off passage, it is characterized in that: described bleed-off passage has at least two groups, every group of bleed-off passage includes the many exhaust tubes that have air inlet sampling head and air intake control valve, the end of all exhaust tubes gathers to the single channel tracheae and feeds the air intake opening of corresponding aspiration pump on the same group, each is organized in the bleed-off passage to be communicated with on each aspiration pump is given vent to anger the tracheae of side and remains stopple coupon, treats that respectively stopple coupon passes through many logical operation valves and is communicated with described stopple coupon.
5. the sampling detecting device of bleeding according to claim 4 is characterized in that: also be communicated with gas outlet on the tracheae of the side of giving vent to anger of described aspiration pump, gas outlet is provided with gas exhausting valve.
6. according to claim 4 or the 5 described sampling detecting devices of bleeding, it is characterized in that: described bleed-off passage is first, second two groups of bleed-off passages, the described how logical operation valve for the treatment of that stopple coupon connects is the two-bit triplet solenoid valve, and the gas outlet of two-bit triplet solenoid valve communicates by the air intake opening of stopple coupon with the gas detection part.
7. the sampling detecting device of bleeding according to claim 6 is characterized in that: described gas detection section is divided into gas sensor.
8. sampling method of bleeding fast mainly may further comprise the steps:
(1) many are used for being divided at least two group bleed-off passages from the exhaust tube of the source of the gas extracting gases to be measured of correspondence, and with each group bleed-off passage one by one correspondence be communicated to each and treat stopple coupon, from every group of bleed-off passage, select an exhaust tube, open each selected exhaust tube and bleed, the selected gas that each exhaust tube extracted is delivered to and corresponding respectively the treating in the stopple coupon of each group bleed-off passage from the source of the gas to be measured of each correspondence;
(2) from remaining stopple coupon, select one with many logical operation valves, the selected total stopple coupon that the gas input in the stopple coupon is used for being communicated with pick-up unit for the treatment of is taken a sample, and other are treated that gas resides in the stopple coupon and treat to enter in the stopple coupon state to be measured, and stop described other to treat that the gas in the stopple coupon enters total stopple coupon with many logical operation valves;
(3) after sampling is finished, from previous sample, select one piece in the not selected institute stopple coupon that remains with many logical operation valves, treat that with selected gas input stopple coupon in the stopple coupon takes a sample next time, and with many logical operation valves stop selected treat stopple coupon in addition the gas in the stopple coupon that remains enter total stopple coupon; When gas substitutes in the stopple coupon, that selected in that group bleed-off passage of the stopple coupon place root exhaust tube for the treatment of selected in the previous sample is had no progeny with the connection pass of corresponding source of the gas to be measured, select on the same group an other exhaust tube again and open connection with corresponding source of the gas to be measured, this gas of newly choosing exhaust tube and being extracted is delivered to treating in the stopple coupon of this group bleed-off passage correspondence;
(4) repeating step 3.
9. the sampling method of bleeding fast according to claim 8, it is characterized in that: described exhaust tube is divided into two groups of bleed-off passages and corresponding respectively two different stopple coupons for the treatment of, treats that to described two stopple coupon chooses in the mode of gating alternately by two-position three way magnetic valve.
10. according to Claim 8 or the 9 described sampling methods of bleeding fast, it is characterized in that: the described bleed-off passage of respectively organizing also is provided with and the gas outlet one to one for the treatment of that stopple coupon is communicated with, and the described gas that enters each state to be measured can be discharged through corresponding gas outlet.
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| CN2009100650371A CN101556220B (en) | 2009-05-26 | 2009-05-26 | Air pumping, sampling and detecting device and quick pumping and sampling system and method |
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| CN2009100650371A CN101556220B (en) | 2009-05-26 | 2009-05-26 | Air pumping, sampling and detecting device and quick pumping and sampling system and method |
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| CN101556220A CN101556220A (en) | 2009-10-14 |
| CN101556220B true CN101556220B (en) | 2011-06-15 |
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Address after: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee after: Power Polytron Technologies Inc Address before: 450001 10 Hi Road, Zhengzhou hi tech Industry Development Zone, Henan, Zhengzhou Patentee before: Zhengzhou GL Tech Company |
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