CN109696332A - A kind of unit-combination type flue gas flow equalizing system - Google Patents
A kind of unit-combination type flue gas flow equalizing system Download PDFInfo
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- CN109696332A CN109696332A CN201810219458.4A CN201810219458A CN109696332A CN 109696332 A CN109696332 A CN 109696332A CN 201810219458 A CN201810219458 A CN 201810219458A CN 109696332 A CN109696332 A CN 109696332A
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- flue gas
- unit
- gas flow
- flow equalizing
- combination type
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- 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
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- 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
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- 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
- G01N1/26—Devices for withdrawing samples in the gaseous state with provision for intake from several spaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of unit-combination type flue gas flow equalizing systems, it include: multiple flue gas flow equalizing units (1), adjacent flue gas flow equalizing unit (1) is connected with each other by detachable connector, forms an exhaust gases passes, the exhaust gases passes are closed at one end, and the other end is outlet；Multiple gas sampling probes (8) connect with the exhaust gases passes in corresponding flue gas flow equalizing unit (1) respectively；Flue gas pretreatment and big flow air extractor (10), connect with the outlet of the exhaust gases passes.Compared with prior art, the present invention is designed using unit-combination type, easy to assembly, is easy to carry about with one, structure is simple, it is durable, flexible adjustment, and will be combined by each unit, convenient for operation, safeguard and find in time failure, the working efficiency of field test personnel is improved, while can realize the real-time continuous multi-point grid method uniform sampling of flue gas, keeps flue gas analysis result more representative and accuracy.
Description
Technical field
The present invention relates to a kind of flue gas flow equalizing devices, more particularly, to a kind of unit-combination type flue gas flow equalizing system.
Background technique
In boiler heating power test, smoke components measurement is an important job, and it is pre- to directly affect boiler thermal efficiency, sky
The test result of device air leak rate of air curtain and SCR flue gas denitrification system etc..The precision of flue gas analyzer has fully met engineering style at present
Requirement therefore obtain representational fume sample just and become the main problem for influencing test result.
In order to keep taken fume sample representative, recommend to use total cross-section gridding method in international and national standard.
During actual measurement, regulatory requirements: the gas componant of multiple test points is pooled in flue gas manifold and is mixed, then again
It is analyzed.
Although being clearly required in flue gas manifold concerned countries standard to flue gas manifold, inventor's discovery:
Due to the difference of resistance, the exhaust gas volumn that each measuring point of manifold is collected is unable to control, therefore, it is difficult to reach the mesh being uniformly evacuated
's.
In addition, finding following related patents by patent retrieval:
It is mixed using flue gas level-one in patent " a kind of flue gas flow equalizing sampler " (application publication number: CN203929446U)
Collaborate quantity regulating device and secondary mixer, realizes that the flue gas flow of each sample point is identical.The patent there are the problem of mainly have:
(1) in program implementation, a set of combined probe tube of multitube just corresponds to a flue gas level-one mixed traffic and adjusts
Device, each flue gas level-one mixed traffic regulating device have multiple suspended body flowmeters with regulating valve, with the increase of measuring point, need
The increase of the suspended body flowmeter to be adjusted also at double, Field adjustment workload is huge, realizes difficulty, and level-one mixer apparatus
Quantity is various, excessively disperses, and is not easy to observe and operate, bad practicality.
(2) each level-one mixer is connect with secondary mixer respectively by the identical flue gas fairlead of length, can not be true
Just guaranteeing that each probe tube flow is identical, and as the resistance of every flue gas fairlead changes, repeated multiple times and carry out the equal of flow
Weighing apparatus is adjusted, and is not only increased the workload of Field Force, is had an effect on measurement accuracy.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind uniformly to extract
Multiple spot flue gas and the unit-combination type flue gas flow equalizing system collected.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of unit-combination type flue gas flow equalizing system, comprising:
Multiple flue gas flow equalizing units, adjacent flue gas flow equalizing unit are connected with each other by detachable connector, form a cigarette
Gas channel, the exhaust gases passes are closed at one end, and the other end is outlet；
Multiple gas sampling probes are logical with the flue gas in corresponding flue gas flow equalizing unit respectively by the straight coupling with ball valve
Road connection；
Flue gas pretreatment and big flow air extractor, connect with the outlet of the exhaust gases passes.
It is equipped between the flue gas and processing and big flow air extractor and the outlet of exhaust gases passes and mixes surge tank.
Each described flue gas flow equalizing unit one end is equipped with connection straight coupling, and the other end is equipped with self-sealing fast joint,
Solid plug, the outlet end of exhaust gases passes are connected with positioned at the self-sealing fast joint of the flue gas flow equalizing unit of exhaust gases passes closed end
On connector be connection straight coupling.
The connection is that pagoda type combines pin and box sub with straight coupling with self-sealing fast joint, wherein straight coupling
For pagoda head, self-sealing fast joint is two sections open.
T-shape chamber built in the flue gas flow equalizing unit, built-in replaceable filtrating equipment of flue gas and floating with regulating valve
Three ports of subflow meter, T-shape chamber are separately connected straight coupling, self-sealing fast joint and the straight coupling with ball valve.
The flue gas flow equalizing cell enclosure is made of transparent organic glass.
Three ports of the T-shape chamber and connection straight coupling, self-sealing fast joint and leading directly to ball valve
Connector is threadedly coupled respectively, and is sealed by " O " type sealing ring.
The filtrating equipment of flue gas uses one-piece design, is hollow transparent organic glass, built-in filter structure.
Each flue gas flow equalizing unit is connect by gas sampling probe with flue.
Flue gas connect flue gas analysis device with processing and the outlet of big flow air extractor, the flue gas flow equalizing unit and
Between the connector of gas sampling probe, between flue gas flow equalizing unit and the connector for mixing surge tank, flue gas pretreatment and big flow take out
Between device of air and the connector for mixing surge tank, the connector of flue gas pretreatment and big flow air extractor and flue gas analysis device it
Between pass through silicone tube be connected with each other.
Compared with prior art, the invention has the following advantages that
(1) it is designed using unit-combination type, it is easy to assembly, it is easy to carry about with one, structure is simple, durable, flexible adjustment, can
Required silicone tube is connected between unit to reduce, reduce the possibility of leakage and mitigates the workload of system leakage detection, and will be led to
It crosses each unit to combine, convenient for operation, safeguards and find in time failure, improve the working efficiency of field test personnel.
(2) each point flue gas flow homogeneous phase etc. may be implemented, keep flue gas analysis result more representative and accuracy.
(3) flue gas flow equalizing unit is integrally made of transparent organic glass, and appearance looks elegant is durable, convenient for timely
It was found that flue gas flow equalizing unit there are the problem of or internal flaw；Inside passes through built-in T-shape cavity for all access interfaces
With built-in device successively connection, structure is simple, and tightness is good.Unit style design, uniform specification can be a large amount of spare, in case damage
When replace in time, and can need to increase test measuring point at any time according to testing ground, break the quantity limit of prefabricated property device
System.
(4) connection is that pagoda type combines pin and box sub with straight coupling with self-sealing fast joint, and wherein straight coupling is
Pagoda head, movement is simple, saves time and manpower；Self-sealing fast joint is two sections open, and pressure drop minimizes, it is easier to clear
It is clean.
(5) ball valve in the straight coupling with ball valve acts not only as the switch that flue gas enters flue gas flow equalizing unit, also
It can be used as the rack and rinion adjustment of flue gas flow, the suspended body flowmeter of mating band regulating valve is used together.
(6) replaceable filtrating equipment of flue gas uses one-piece design, and material is transparent organic glass, hollow structure,
Built-in medical absorbent cotton (other adsorbent materials, such as strainer or filterability sponge etc. can also be used), with flue gas flow equalizing unit it
Between to be spirally connected, be placed in the T-shape cavity built in flue gas flow equalizing unit, good airproof performance is conveniently replaceable.
(7) suspended body flowmeter with regulating valve uses corrosion resistant organic glass suspended body flowmeter, durable, flexible adjustment.
Detailed description of the invention
Fig. 1 is the present embodiment system structure diagram；
Fig. 2 is the structural schematic diagram of the present embodiment flue gas flow equalizing unit；
Appended drawing reference:
1, flue gas flow equalizing unit；2, straight coupling is used in connection；3, self-sealing fast joint；4, with the straight coupling of ball valve；
5, filtrating equipment of flue gas；6, with the suspended body flowmeter of regulating valve；7, solid plug；8, gas sampling probe；9, surge tank is mixed；
10, flue gas pretreatment and big flow air extractor；11, flue gas analysis device.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment
A kind of flue gas flow equalizing system of unit-combination type, several flue gas flow equalizing units 1 are used straight-through by the connection of itself
The self-sealing fast joint 3 of connector 2 and adjacent flue gas flow equalizing unit 1 is connected with each other, and forms a stable overall structure, most
The self-sealing fast joint 3 of the latter flue gas flow equalizing unit 1 guarantees the air-tightness of whole system by being connected with solid plug 7.
Each flue gas flow equalizing unit 1 is taken by the straight coupling 4 with ball valve with the flue gas of corresponding flue gas sampling device first
Sample pipe 8 connects, and flue gas is flowed and mixed；Flue gas flow equalizing unit 1 is built-in with replaceable filtrating equipment of flue gas 5 and with tune
The suspended body flowmeter 6 for saving valve, keeps each probe tube flow identical.
Flue gas flow equalizing unit 1 be assembled into entirely through shared outlet, flue gas is sent into mixing surge tank 9, then pass through
Flue gas is sent into flue gas analysis device 11 and carries out flue gas analysis by flue gas pretreatment and big flow air extractor 10.
Flue gas flow equalizing unit 1 is whole to be made of transparent organic glass, and inside will own by built-in T-shape cavity
Access interface and built-in device successively connection.
Connection straight coupling 2, the self-sealing fast joint 3 of built-in check valve, the straight coupling 4 with ball valve and flue gas are equal
Flowing between unit 1 is to be spirally connected, and centre is provided with " O " type sealing ring of rubber material.
Connection is that instrument combines male and female with pagoda type and connects with straight coupling 2 and the self-sealing fast joint 3 of built-in check valve
Head, movement is simple, saves time and manpower；Wherein connection straight coupling 2 is designed as pagoda head, facilitates connection silicone tube；From
Envelope formula quick coupling 3 is two sections open, and pressure drop minimizes, it is easier to clean；Pagoda type combination pin and box sub material be
Stainless steel, it is durable, it is not easy to corrode.
Straight coupling 4 with ball valve is designed as pagoda head, facilitates connection silicone tube, and material is stainless steel, durable, no
Easy-to-rust.Ball valve therein acts not only as the switch that flue gas enters flue gas flow equalizing unit 1, is alternatively arranged as flue gas flow
The suspended body flowmeter 6 of rack and rinion adjustment, mating band regulating valve is used together.
Replaceable filtrating equipment of flue gas 5 uses one-piece design, and material is transparent organic glass, and hollow structure is interior
Medical absorbent cotton (other adsorbent materials, such as strainer or filterability sponge etc. can also be used) is set, between flue gas flow equalizing unit
To be spirally connected, it is placed in the T-shape cavity built in flue gas flow equalizing unit 1, good airproof performance is conveniently replaceable.
Suspended body flowmeter 6 with regulating valve uses corrosion resistant organic glass suspended body flowmeter, durable, flexible adjustment.
Flue gas flow equalizing unit 1, gas sampling probe 8, mixing surge tank 9, flue gas pretreatment and big flow air extractor 10, cigarette
Gas analytical equipment 11 is interconnected by silicone tube.
The uniform flow mixing device of unit-combination type flue gas, it is possible to reduce connect required silicone tube between unit, reduce leakage
Possibility and mitigate system leakage detection workload, all flue gas flow equalizing units can also be managed concentratedly, convenient for observing and being
System leakage detection, flexible adjustment reduce the amount of labour of testing crew, improve labor efficiency.
Solid plug 7 is designed as pagoda head, facilitates connection self-sealing fast joint, and material is stainless steel, durable, no
Easy-to-rust.
Gas sampling probe 8 be proposed with patent " a kind of high-accuracy durability smoke sampling and mixing arrangement " (application number:
201621344883.9) in the flue gas sampling device mentioned；But it is not limited to the type gas sampling probe, the present invention is common to current institute
There is the gas sampling probe of form.
For mixing surge tank 9 using being made of transparent organic glass, appearance looks elegant is durable.
Flue gas pretreatment and big flow air extractor 10 use set of equipment, and extraction flow is greater than 10L/min.
As shown in Figure 1, 2, the flue gas flow equalizing system of the unit-combination type of the present embodiment, is accomplished by the following way: several
A flue gas flow equalizing unit 1 passes through the connection straight coupling 2 of itself and the self-sealing fast joint 3 of adjacent flue gas flow equalizing unit 1
Be connected with each other, form a stable overall structure, the self-sealing fast joint 3 of the last one flue gas flow equalizing unit 1 pass through and
Solid plug 7 is connected, and guarantees the air-tightness of whole system.
The gas sampling probe 8 that each flue gas flow equalizing unit passes through the straight coupling 4 with ball valve and corresponding flue gas sampling device
Connection, is flowed and is mixed to flue gas；Flue gas is extracted out from flue by gas sampling probe 8, then, into replaceable cigarette
Gas filter device 5 enters the suspended body flowmeter 6 with regulating valve by the flue gas that preliminary dust removal is dehydrated, can be according to band regulating valve
Suspended body flowmeter 6 test data adjust each road reach predetermined value into exhaust gas volumn.Pass through the float stream with regulating valve
After meter 6, flue gas flow equalizing unit 1 be assembled into entirely through shared outlet, flue gas is sent into mixing surge tank 9, then pass through
Flue gas is sent into flue gas analysis device 11 and carries out flue gas analysis by flue gas pretreatment and big flow air extractor 10.
Connecting tube in the present invention is all made of silica gel and is made, high temperature resistant.
Heretofore described gas sampling probe be proposed with patent " a kind of high-accuracy durability smoke sampling with mix
Device " application number: the flue gas sampling device mentioned in 201621344883.9.
Each flue gas flow equalizing unit 1 successively connects with the gas sampling probe of flue gas sampling device 8 in a certain order
It connects, and is labeled with pen in flue gas flow equalizing unit 1, convenient for identification and quick lookup.
The straight coupling 4 with ball valve of each flue gas flow equalizing unit 1 is all placed in closed state at the beginning, etc. whole systems connect
It connects and finishes, a complete set can be carried out first by flue gas pretreatment and big flow air extractor 10 and flue gas analysis device 11
The leakage detection of system works；Then flue gas flow equalizing unit 1, the straight coupling 4 with ball valve is successively opened belonging to the shared outlet,
Carry out the leakage detection work of each flue gas flow equalizing unit 1；After all leakage detection work, then start formal test job.
It is recommended that each flue gas flow equalizing unit 1 takes replaceable filtrating equipment of flue gas 5 after test, through knob
Out, deashing is carried out；And compressed air is passed through by the straight coupling 4 with ball valve, carries out internal sweep and deashing.
Claims (10)
1. a kind of unit-combination type flue gas flow equalizing system characterized by comprising
Multiple flue gas flow equalizing units (1), adjacent flue gas flow equalizing unit (1) are connected with each other by detachable connector, form one
Exhaust gases passes, the exhaust gases passes are closed at one end, and the other end is outlet；
Multiple gas sampling probes (8), by the straight coupling (4) with ball valve respectively and in corresponding flue gas flow equalizing unit (1)
Exhaust gases passes connection；
Flue gas pretreatment and big flow air extractor (10), connect with the outlet of the exhaust gases passes.
2. a kind of unit-combination type flue gas flow equalizing system according to claim 1, which is characterized in that the flue gas is located in advance
It is equipped between reason and big flow air extractor (10) and the outlet of exhaust gases passes and mixes surge tank (9).
3. a kind of unit-combination type flue gas flow equalizing system according to claim 1, which is characterized in that each flue gas is equal
It flows unit (1) one end and is equipped with connection with straight coupling (2), the other end is equipped with self-sealing fast joint (3), is located at exhaust gases passes and seals
The self-sealing fast joint (3) of the flue gas flow equalizing unit (1) of closed end is connected with solid plug (7), on the outlet end of exhaust gases passes
Connector is connection straight coupling (2).
4. a kind of unit-combination type flue gas flow equalizing system according to claim 3, which is characterized in that the connection is with directly
Pass joint (2) is that pagoda type combines pin and box sub with self-sealing fast joint (3), and wherein straight coupling (2) is pagoda head, self-styled
Formula quick coupling (3) is two sections open.
5. a kind of unit-combination type flue gas flow equalizing system according to claim 3, which is characterized in that the flue gas flow equalizing
T-shape chamber built in unit (1), built-in replaceable filtrating equipment of flue gas (5) and the suspended body flowmeter (6) with regulating valve, T-shape
Three ports of chamber are separately connected straight coupling (2), self-sealing fast joint (3) and the straight coupling (4) with ball valve.
6. a kind of unit-combination type flue gas flow equalizing system according to claim 5, which is characterized in that the flue gas flow equalizing
Unit (1) shell is made of transparent organic glass.
7. a kind of unit-combination type flue gas flow equalizing system according to claim 5, which is characterized in that the T-shape chamber
Three ports with connect with straight coupling (2), self-sealing fast joint (3) and straight coupling (4) with ball valve screw thread respectively
Connection, and sealed by " O " type sealing ring.
8. a kind of unit-combination type flue gas flow equalizing system according to claim 5, which is characterized in that the smoke filtration
Device (5) uses one-piece design, is hollow transparent organic glass, built-in filter structure.
9. a kind of unit-combination type flue gas flow equalizing system according to claim 1, which is characterized in that each flue gas is equal
Stream unit (1) is connect by gas sampling probe (8) with flue.
10. a kind of unit-combination type flue gas flow equalizing system according to claim 2, which is characterized in that flue gas and processing and
The outlet of big flow air extractor (10) connects flue gas analysis device (11), the flue gas flow equalizing unit (1) and smoke sampling
Manage between the connector of (8), between flue gas flow equalizing unit (1) and the connector for mix surge tank (9), flue gas pre-processes and big flow pumping
Between device of air (10) and the connector for mixing surge tank (9), flue gas pretreatment and big flow air extractor (10) and flue gas analysis
It is connected with each other by silicone tube between the connector of device (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219458.4A CN109696332A (en) | 2018-03-16 | 2018-03-16 | A kind of unit-combination type flue gas flow equalizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219458.4A CN109696332A (en) | 2018-03-16 | 2018-03-16 | A kind of unit-combination type flue gas flow equalizing system |
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| CN109696332A true CN109696332A (en) | 2019-04-30 |
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| CN201810219458.4A Pending CN109696332A (en) | 2018-03-16 | 2018-03-16 | A kind of unit-combination type flue gas flow equalizing system |
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| US6022510A (en) * | 1992-05-18 | 2000-02-08 | Testoterm Fritzsching Gmbh & Co. | Gas-sampling means for a flue-gas analysis apparatus |
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| CN105628455A (en) * | 2016-02-04 | 2016-06-01 | 大唐环境产业集团股份有限公司 | Full-size smoke component measuring device for large flue |
| CN106644612A (en) * | 2017-02-27 | 2017-05-10 | 国电科学技术研究院 | Smoke grouping online monitoring system of near wall region of boiler water wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4061467A (en) * | 1974-09-28 | 1977-12-06 | Bayer Aktiengesellschaft | Process and apparatus for the removal of samples for analysers from a stream of exhaust gas |
| US6022510A (en) * | 1992-05-18 | 2000-02-08 | Testoterm Fritzsching Gmbh & Co. | Gas-sampling means for a flue-gas analysis apparatus |
| JPH0875620A (en) * | 1994-09-09 | 1996-03-22 | Nitto Boseki Co Ltd | Method and apparatus for sampling of smoke contained gas |
| WO2000054022A1 (en) * | 1999-03-10 | 2000-09-14 | Bm Becker Messtechnik Gmbh | Method and device for taking samples from exhaust gases |
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| CN205209829U (en) * | 2015-10-27 | 2016-05-04 | 国网山东省电力公司电力科学研究院 | Controllable flue gas sampling device of flow |
| CN105628455A (en) * | 2016-02-04 | 2016-06-01 | 大唐环境产业集团股份有限公司 | Full-size smoke component measuring device for large flue |
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