CN110132663A - A kind of smoke sampling auxiliary device suitable for high temperature positive flue - Google Patents
A kind of smoke sampling auxiliary device suitable for high temperature positive flue Download PDFInfo
- Publication number
- CN110132663A CN110132663A CN201910356235.7A CN201910356235A CN110132663A CN 110132663 A CN110132663 A CN 110132663A CN 201910356235 A CN201910356235 A CN 201910356235A CN 110132663 A CN110132663 A CN 110132663A
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- Prior art keywords
- flue
- smoke sampling
- tube
- connector
- high temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 49
- 239000000779 smoke Substances 0.000 title claims abstract description 41
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000003546 flue gas Substances 0.000 claims abstract description 48
- 239000000523 sample Substances 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 26
- 210000004907 gland Anatomy 0.000 claims description 25
- 230000002000 scavenging effect Effects 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000002341 toxic gas Substances 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 206010000372 Accident at work Diseases 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 231100000075 skin burn Toxicity 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
Abstract
The invention discloses a kind of smoke sampling auxiliary devices suitable for high temperature positive flue.Existing smoke sampling hole can not be suitable for the smoke sampling place of high temperature positive.Probe tube of the invention, the first connector and preceding extension tube attached form the coaxial pipeline section perpendicular to flue wall surface, as smoke sampling hole；The probe tube, the air that one end flows into form sealing to the flue gas that its other end flows into, and the air in environment enters from the smoke sampling hole for having unloaded closure, enter mixing tube by turning after the second ball valve；Meanwhile flue gas enters preceding extension tube attached from flue, enters mixing tube by turning after the first connector and probe tube；Air and flue gas pass through mixing tube together and are inhaled into injector, then together with compressed air by the second connector and after extension tube attached, be finally injected into flue.The present invention can prevent high-temperature flue gas from leaking and cause burn or toxic gas injury；The condition that can provide online smoke sampling, without opening machine and shutdown again.
Description
Technical field
The invention belongs to the auxiliary that gas sampling technique field, specifically a kind of pair of high temperature positive flue gas are sampled
Device.
Background technique
The flue gas that fuel combustion generates flows in flue and chimney, and flue gas pressures may be positive in all or part of pipeline section
Pressure.When the flue or chimney of positive pressure carry out smoke sampling, flue gas is easy to leak, and especially high-temperature flue gas leaks, and has higher
Security risk, easily cause personnel's poisoning, skin burn, surrounding combustible kindling etc. industrial accidents.Smoke sampling hole
It is generally made of external pipeline section and closure (such as screw-type blank cap, ring flange, plug), opens and block in smoke sampling, complete
Closure is reinstalled when at smoke sampling.However, the closure for opening smoke sampling hole will in high temperature positive flue or chimney place
So that high-temperature flue gas is leaked, influence personnel and Environmental security, causes smoke sampling that can not be normally carried out.
Existing solution is to shut down before carrying out smoke sampling, open closure, installation flue gas sampling device, in cigarette
Protective face mask and anti-scald gloves are worn when gas samples, using the gap of gauze sealing sampling hole and sampler, complete flue gas
It shut down when sampling, reinstall closure, open machine again again after the test.As it can be seen that existing smoke sampling hole can not be suitable for
The smoke sampling place of high temperature positive, it is dangerous big if on-line operation process, if off-line operation process needs start and stop unit.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the problems of the above-mentioned prior art, provide a kind of suitable for height
The smoke sampling auxiliary device of warm positive pressure flue causes burn or toxic gas to injure to prevent high-temperature flue gas from leaking；With
The condition of online smoke sampling is provided, without opening machine and shutdown again.
For this purpose, the present invention adopts the following technical scheme that: a kind of smoke sampling auxiliary dress suitable for high temperature positive flue
It sets, including preceding extension tube attached, rear extension tube attached, injector, probe tube, mixing tube, work gas source, injection pipe, scavenging conduit, emergency gas
Source, sealing gland pipe, the first connector and the second connector；
The preceding extension tube attached and rear extension tube attached are for being mounted on flue wall surface；
The probe tube, the first connector and preceding extension tube attached form the coaxial pipeline section perpendicular to flue wall surface, take as flue gas
Sample hole；
The injector, input end are connect with injection pipe, and outlet end is connect by the second connector with rear extension tube attached,
Throat site is connect with scavenging conduit；
Compressed air from work gas source is delivered to injector input end by the injection pipe；
Compressed air from work gas source is delivered to injector throat site by the scavenging conduit；
The probe tube, one end installation is detachable to be blocked, and the other end is connect by the first connector with preceding extension tube attached；It is described
Probe tube on the second ball valve is installed, the gentle tube sealing connecting hole of mixing tube connecting hole is opened up on probe tube；The mixing tube connects
It connects hole to be located in the middle part of probe tube, the sealing gland pipe connecting hole is located between mixing tube connecting hole and detachable closure, described
Second ball valve is located between sealing gland pipe connecting hole and detachable closure；
The mixing tube, one end are connected in the middle part of probe tube, and the other end is connected to injector throat site, in-between section
For flexible connecting member, make mixing tube that there is certain retractility in length direction, be conveniently adjusted installation site and improve installation
Flexibility；
Compressed air from contingency gas sources or the gas source that works is delivered to probe tube by the sealing gland pipe；
The probe tube, the flue gas that the air that one end flows into flows into its other end form sealing, the air in environment from
It has unloaded and has entered at the smoke sampling hole of closure, entered mixing tube by turning after the second ball valve；Meanwhile flue gas enters from flue
Preceding extension tube attached enters mixing tube by turning after the first connector and probe tube；Air and flue gas pass through mixing tube together and are inhaled
Enter injector, then together with compressed air by the second connector and after extension tube attached, be finally injected into flue.
The present invention generates low-pressure area in its aditus laryngis by injector, positive pressure and extraneous ring in the low-pressure area and flue
Border pressure is respectively formed pressure difference, is flowed into, is taken in opposite directions from probe tube both ends respectively using the pressure difference driving flue gas and air
The air of sample pipe one end forms sealing to the flue gas of its other end, to prevent the flue gas when carrying out smoke sampling from leaking.
Preferably, the preceding extension tube attached is located at flue gas upstream in flue, installs the first ball valve in preceding extension tube attached.
Preferably, the rear extension tube attached is located at flue gas downstream in flue, installs the first shut-off valve in rear extension tube attached.
Preferably, the smoke sampling hole is one or more.
Preferably, the sealing gland pipe is equipped with normally opened shut-off valve and fast open electromagnetic valve.
Preferably, the fast open electromagnetic valve, is quickly opened when meeting logic of propositions, and compressed air is sprayed into and is sampled
Pipe forms the sealing to flue gas, guarantees that air is to the sealing performance of flue gas when the flue gas pressures unusual fluctuations in flue.
Preferably, the injection pipe is equipped with injection and adjusts valve.
Preferably, the injection tune valve manually adjusts or automatically adjusts aperture according to preset control logic, guarantees
Sealing performance of the air to flue gas when pressure normal fluctuation in flue.
Preferably, the scavenging conduit is equipped with blow down valve.
Preferably, first connector and the second connector are individual components, by selecting suitable connector,
The different preceding extension tube attached of caliber and probe tube, or rear extension tube attached and injector that connection caliber is different can be connected, smoke sampling is made
Auxiliary device compatibility is stronger；First connector is all made of with the connection type of preceding extension tube attached and probe tube and is threadedly coupled, sealing
Property is good；Second connector is all made of with the connection type of rear extension tube attached and injector and is threadedly coupled, good airproof performance.
Preferably, the flue refers to the channel that flue gas flows through, and also includes chimney comprising usual signified flue.
Preferably, when flue gas flows up in dust contained flue gas and flue, can be located at below mixing tube on probe tube
Installation collection ash can, convenient for collecting dust stratification and deashing.
It is furthermore preferred that the injection adjusts the default control logic of valve to have a variety of possibilities, it can be according to practical application field
Scape is designed.
It is furthermore preferred that the logic of propositions of the fast open electromagnetic valve has a variety of possibilities, it can be according to practical application scene
It is designed.
The present invention is suitable for flue and chimney, especially to the place of high temperature positive have it is following the utility model has the advantages that
1) can prevent high-temperature flue gas from leaking causes burn or toxic gas to injure；
2) condition that can provide online smoke sampling, without opening machine and shutdown again；
3) multiple sampling holes can be set simultaneously, meet different tests requirement；
4) flexible for installation and interface compatibility is strong.
Detailed description of the invention
Fig. 1 is structural schematic diagram when smoke sampling auxiliary device of the present invention is applied；
Fig. 2 is the main view of probe tube of the present invention；
Fig. 3 is the top view of probe tube of the present invention；
Fig. 4-5 is the diagrammatic cross-section (sectional view along A-A that Fig. 5 is Fig. 4) of sealing gland pipe connection hole in Fig. 2 and Fig. 3；
Fig. 6 is the diagrammatic cross-section of injector of the present invention；
Fig. 7 is the controlling curve figure that valve is adjusted in present invention injection；
Fig. 8 is the controlling curve figure of the fast open electromagnetic valve of the present invention.
In figure, extension tube attached before 1-, the first connector of 2-, 3- probe tube, 4- mixing tube, 5- injector, extension tube attached after 6-, 7-
Valve is adjusted in injection pipe, 8- sealing gland pipe, 9- work gas source, 10- contingency gas sources, the first ball valve of 11-, the first shut-off valve of 12-, 13- injection,
14- blow down valve, the fast open electromagnetic valve of 15-, the normally opened shut-off valve of 16-, the first external screw thread of 17-, 18- mixing tube connecting hole, 19- sealing gland pipe
Connecting hole, the second connector of 20-, the second ball valve of 21-, 22- are detachably blocked, 23- scavenging conduit, 24- sealing gland aperture, 25- empty slot,
The second external screw thread of 26-, 27- scavenging conduit connecting hole, 28- third external screw thread, connecting hole on 29- mixing tube, 30- aditus laryngis, 31- second
Shut-off valve.
Specific embodiment
The specific embodiment described in following embodiments of the present invention is only used as a specific embodiment of the invention
Exemplary illustration, and be not meant to limit the scope of the invention.
The invention will be further described with specific embodiment with reference to the accompanying drawings of the specification.
Fig. 1 is structural schematic diagram when smoke sampling auxiliary device of the present invention is applied, before smoke sampling auxiliary device includes
Extension tube attached 1, rear extension tube attached 6, injector 5, probe tube 3, mixing tube 4, work gas source 9, injection pipe 7, scavenging conduit 23, contingency gas sources
10, sealing gland pipe 8, the first connector 2 and the second connector 20.Preceding extension tube attached 1 and rear extension tube attached 6 are installed on flue wall surface；
Preceding extension tube attached 1 is in flue gas upstream, and the first ball valve 11 is installed in preceding extension tube attached 1.Extension tube attached 6 is in flue gas downstream afterwards, rear external
First shut-off valve 12 is installed on pipe 6.Injector 5, input end are connect with injection pipe 7, outlet end by the first connector 2 with
Extension tube attached 6 connects afterwards, and throat site is connect with scavenging conduit 6.Compressed air from work gas source 9 is delivered to by injection pipe 7
5 input end of injector, injection pipe 7 are equipped with injection and adjust valve 13 and the second shut-off valve 31.Scavenging conduit 6, by the pressure from work gas source 9
Contracting air delivery to 5 throat site of injector, scavenging conduit 6 is equipped with blow down valve 14.Probe tube 3, one end installation is detachable to be blocked
22, the other end is connect by the first connector 2 with preceding extension tube attached 11.
Probe tube 3, the first connector 2 and 1 three of preceding extension tube attached form the coaxial pipeline section perpendicular to flue wall surface, as cigarette
Gas sampling hole.Mixing tube 4, one end are connected to 3 middle part of probe tube, and the other end is connected to 5 oral area position of injector larynx, among it
Section is flexible connecting member.Compressed air from contingency gas sources 10 or the gas source 9 that works is delivered to probe tube 3, gas by sealing gland pipe 8
Tube sealing 8 is equipped with normally opened shut-off valve 16 and fast open electromagnetic valve 15.
Fig. 2 is probe tube main view, and Fig. 3 is probe tube top view.It adopts one end that probe tube 3 is connect with the first connector 2
With the first external screw thread 17, detachable closure 22 uses flange, opens up the gentle tube sealing connecting hole of mixing tube connecting hole 18 on probe tube
19, the second ball valve 21 is installed, the mixing tube connecting hole 18 is located at 3 middle part of probe tube, sealing gland pipe connecting hole 19 on probe tube
Between mixing tube connecting hole 18 and detachable closure 22, the second ball valve 21 is in sealing gland pipe connecting hole 19 and detachable closure 22
Between.
Fig. 4-5 is the partial cutaway view of sealing gland pipe connection hole in Fig. 2 and Fig. 3, and a gas is opened up on 3 outer surface of probe tube
Tube sealing connecting hole 19 offers circumferentially equally distributed 8 sealing gland apertures 24, sealing gland pipe connecting hole in 3 inner surface of probe tube
General empty slot 25 is connected between 19 and all sealing gland apertures 24；Compressed air enters from sealing gland pipe connecting hole 19, passes through empty slot
25 are distributed to 8 sealing gland apertures 24, then spray into sampling tube cavity from sealing gland aperture, are formed and are sealed to flue gas.
Fig. 6 is the sectional view of injector 5, and one end that injector 5 is connect with the second connector 20 uses the second external screw thread 26,
The one end connecting with injection pipe 7 uses third external screw thread 28, opens up at aditus laryngis 30 and connects on scavenging conduit connecting hole 27 and mixing tube
Connect hole 29.
Fig. 7 is the controlling curve figure that valve 13 is adjusted in injection, which can be determined by test, is indicated in different flue gas pressures
The aperture of valve 13 is adjusted in lower injection.Upstream of the pressure sensor location of flue gas pressures in flue and positioned at preceding extension tube attached 1, can use
Existing pressure-measuring-point on flue；Under different flue gas pressures, the aperture that valve 13 is adjusted in injection is adjusted, until smokeless is from sampling
Pipe 3 leaks, and records the aperture under the corresponding flue gas pressures.
Fig. 8 is the controlling curve figure of fast open electromagnetic valve 15, which can be determined by test, indicates to adjust valve 13 to open in injection
Fast open electromagnetic valve is quickly opened when spending big, sprays seal compression air to probe tube 3；Flue gas pressures are prevented to fluctuate suddenly, and
Injection adjusts valve 13 to adjust surplus deficiency, and the danger that flue gas leaks occurs.In the present embodiment, fast open electromagnetic valve 15 is set are as follows: is being sprayed
It penetrates and adjusts 13 aperture of valve when reaching 80%, fast 15 moment of open electromagnetic valve standard-sized sheet.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.It is any
Those skilled in the art, made equivalent changes and modifications under the premise of not departing from design and the principle of the present invention,
It should belong to the scope of protection of the invention.
Claims (10)
1. a kind of smoke sampling auxiliary device suitable for high temperature positive flue, including preceding extension tube attached (1), rear extension tube attached (6), draw
Emitter (5), probe tube (3), mixing tube (4), work gas source (9), injection pipe (7), scavenging conduit (23), contingency gas sources (10), gas
Tube sealing (8), the first connector (2) and the second connector (20), which is characterized in that
The preceding extension tube attached (1) and rear extension tube attached (6) is for being mounted on flue wall surface；
The probe tube (3), the first connector (2) and preceding extension tube attached (1) form the coaxial pipeline section perpendicular to flue wall surface, make
For smoke sampling hole；
The injector (5), input end are connect with injection pipe (7), and outlet end passes through the second connector (20) and rear outer
(6) connection is taken over, throat site is connect with scavenging conduit (23)；
Compressed air from work gas source (9) is delivered to injector (5) input end by the injection pipe (7)；
Compressed air from work gas source (9) is delivered to injector (5) throat site by the scavenging conduit (23)；
The probe tube (3), one end installation is detachable to block (22), the other end by the first connector (2) with it is preceding external
Manage (1) connection；Installed the second ball valve (21) on the probe tube (3), opened up on probe tube (3) mixing tube connecting hole (18) and
Sealing gland pipe connecting hole (19)；The mixing tube connecting hole (18) is located in the middle part of probe tube, the sealing gland pipe connecting hole (19)
Between mixing tube connecting hole (18) and detachable closure (22), second ball valve (21) is located at sealing gland pipe connecting hole
(19) between detachable closure (22)；
The mixing tube (4), one end are connected in the middle part of probe tube (3), and the other end is connected to injector (5) aditus laryngis portion
Position, in-between section are flexible connecting member；
Compressed air from contingency gas sources (10) or work gas source (9) is delivered to probe tube (3) by the sealing gland pipe (8)；
The probe tube (3), the air that one end flows into form sealing to the flue gas that its other end flows into, the air in environment
Enter from the smoke sampling hole for having unloaded closure, is turned afterwards by the second ball valve (21) and enter mixing tube (4)；Meanwhile flue gas
Enter preceding extension tube attached (1) from flue, is turned afterwards by the first connector (2) and probe tube (3) and enter mixing tube (4)；Air and
Flue gas passes through mixing tube (4) together and is inhaled into injector (5), then together with compressed air by the second connector (20) and after
Extension tube attached (6), is finally injected into flue.
2. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 1, which is characterized in that
The preceding extension tube attached (1) is located at flue gas upstream in flue, installs the first ball valve (11) on preceding extension tube attached (1).
3. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 1, which is characterized in that
The rear extension tube attached (6) is located at flue gas downstream in flue, installs the first shut-off valve (12) on rear extension tube attached (6).
4. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 1-3,
It is characterized in that, the smoke sampling hole is one or more.
5. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 1-3,
It is characterized in that, the sealing gland pipe (8) is equipped with normally opened shut-off valve (16) and fast open electromagnetic valve (15).
6. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 5, which is characterized in that
The fast open electromagnetic valve, is quickly opened when meeting logic of propositions, and compressed air is sprayed into probe tube, is formed to the close of flue gas
Envelope, guarantees that air is to the sealing performance of flue gas when the flue gas pressures unusual fluctuations in flue.
7. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 1-3,
It is characterized in that, the injection pipe (7) is equipped with injection and adjusts valve (13).
8. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 7, which is characterized in that
The injection tune valve manually adjusts or automatically adjusts aperture according to preset control logic, guarantees that pressure is normal in flue
Sealing performance of the air to flue gas when fluctuation.
9. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 1-3,
It is characterized in that, the scavenging conduit (23) is equipped with blow down valve (14).
10. a kind of smoke sampling auxiliary device suitable for high temperature positive flue according to claim 1-3,
It is characterized in that, first connector (2) and the second connector (20) are individual components, the first connector (2) and preceding outer
The connection type of adapter tube (1) and probe tube (3) is all made of threaded connection；Second connector (20) and rear extension tube attached (6) and injection
The connection type of device (5) is all made of threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910356235.7A CN110132663B (en) | 2019-04-29 | 2019-04-29 | Flue gas sampling auxiliary device suitable for high Wen Zhengya flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910356235.7A CN110132663B (en) | 2019-04-29 | 2019-04-29 | Flue gas sampling auxiliary device suitable for high Wen Zhengya flue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110132663A true CN110132663A (en) | 2019-08-16 |
| CN110132663B CN110132663B (en) | 2024-02-09 |
Family
ID=67575790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910356235.7A Active CN110132663B (en) | 2019-04-29 | 2019-04-29 | Flue gas sampling auxiliary device suitable for high Wen Zhengya flue |
Country Status (1)
| Country | Link |
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| CN (1) | CN110132663B (en) |
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