CN209182113U - A kind of multiple spot sampling smoke device and boiler system - Google Patents
A kind of multiple spot sampling smoke device and boiler system Download PDFInfo
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- CN209182113U CN209182113U CN201821979194.4U CN201821979194U CN209182113U CN 209182113 U CN209182113 U CN 209182113U CN 201821979194 U CN201821979194 U CN 201821979194U CN 209182113 U CN209182113 U CN 209182113U
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Abstract
The utility model discloses a kind of multiple spot sampling smoke device and boiler systems, belong to boiler smoke detection technique field.Multiple spot sampling smoke device provided by the utility model includes gas sampling probe, testing agency and flow-stabilizing mechanism, the quantity of gas sampling probe is multiple, testing agency includes flue gas analyzer, the first Smoke pump and multiple measurement branch pipes, and flow-stabilizing mechanism includes the second Smoke pump and multiple flowing branch pipes.It can make flue gas constant flow in the pipeline to sampler by the way that flow-stabilizing mechanism is arranged, be conducive to the precision and stability for improving sampling precision and flue gas inspection.By the way that first switch valve is arranged on measurement branch pipe and second switch valve is arranged on flow line, alternately suction and detection can be carried out to the flue gas at different sample points using the opening and closing of first switch valve and second switch valve, consequently facilitating realizing the automation of different sample point smoke sampling detections, be conducive to simplify smoke sampling detection operation, improve the efficiency of smoke sampling detection.
Description
Technical field
The utility model relates to boiler smoke detection technique field more particularly to a kind of multiple spot sampling smoke devices and boiler
System.The utility model relates to boiler smoke sampling analysis field, in particular to a kind of automatic multiple spot sampling smoke device.
Background technique
Boiler is a kind of energy conversion devices that can convert the chemical energy in fuel to thermal energy, is widely used in electricity
In the enterprises such as factory, locomotive, ship and industrial and mineral.In order to detect boiler fuel combustion case and fuel combustion after generate
Constituent content in flue gas needs to be sampled analysis to the flue gas in boiler flue.With being gradually increased for boiler capacity, pot
Furnace flue is also increasingly thicker, in order to guarantee the accuracy of testing result, needs to arrange multiple smoke sampling points in flue, utilizes
Sampler successively each smoke sampling point sampling after respectively or mixing be sent into flue gas analyzer analyzed.This kind sampling point
Position of the analysis method due to needing to frequently replace sampler, operate it is more complicated, and flue gas suction, be mixed and fed into flue gas
It is taken a long time during analyzer, measurement efficiency is low.Further, since each sample point flue gas flow difference and flue gas
The continuity of sampling not can guarantee low so as to cause detection accuracy.
Therefore, how to realize and multidraw is carried out to the flue gas in boiler flue automatically, and improve the detection of sampler
The technical issues of efficiency and detection accuracy are present urgent need to resolve.
Utility model content
One of the utility model is designed to provide a kind of multiple spot sampling smoke device, high degree of automation, detection effect
Fruit is high, and detection accuracy is high.
Another of the utility model is designed to provide a kind of boiler system, which can automatically detect flue gas
Constituent and each ingredient content, high degree of automation.
For this purpose, the utility model uses following technical scheme:
A kind of multiple spot sampling smoke device, including multiple gas sampling probes；
Testing agency, the testing agency include flue gas analyzer, the first Smoke pump and multiple measurement branch pipes, multiple described
Measurement branch pipe is connected to multiple gas sampling probe one-to-one correspondence, is provided with first switch on each measurement branch pipe
Valve, and the output end of each measurement branch pipe is connect with the flue gas analyzer and first Smoke pump；
Flow-stabilizing mechanism, the flow-stabilizing mechanism include the second Smoke pump and multiple flowing branch pipes, multiple flowing branch pipes and
Multiple gas sampling probes correspond connection, are provided with second switch valve, and each institute on each flowing branch pipe
The output end for stating flowing branch pipe is connect with second Smoke pump.
Preferably, the testing agency further include:
Fume pipe to be measured, the fume pipe to be measured is arranged between the measurement branch pipe and the flue gas analyzer, described
Fume pipe to be measured it is closed at one end, the other end is connected to the flue gas analyzer, it is multiple it is described measurement branch pipes output ends with
The fume pipe connection to be measured.
Preferably, the flow-stabilizing mechanism further include:
Flue gas main pipe, the flue gas main pipe are arranged between the flowing branch pipe and second Smoke pump, the flue gas
Main pipe it is closed at one end, the other end is connected to second Smoke pump, multiple flowing branch pipes with the flue gas main pipe connect
It is logical.
Preferably, the multiple spot sampling smoke device further include:
Flue gas back-blowing mechanism, the flue gas back-blowing mechanism are connected to the fume pipe to be measured and the flue gas main pipe, are used for
Cleaning gas is blown into the fume pipe to be measured and the flue gas main pipe.
Preferably, the flue gas back-blowing mechanism includes compressed air cylinder, the downtake pipe of the compressed air cylinder is logical
It crosses the first triple valve to be connected between the flue gas analyzer and the fume pipe to be measured, the second exhaust of the compressed air cylinder
Pipe is connected between the flue gas main pipe and second Smoke pump by the second triple valve.
Preferably, the equal length of multiple measurement branch pipes.
Preferably, the quantity of the flowing branch pipe, the gas sampling probe and the measurement branch pipe is 4-32.
Preferably, the multiple spot sampling smoke device further include:
Control mechanism, the control mechanism and the flue gas analyzer, first Smoke pump, the first switch valve,
Second Smoke pump and the equal communication connection of second switch valve.
A kind of boiler system, including above-mentioned multiple spot sampling smoke device.
The utility model has the beneficial effects that
The utility model provides a kind of multiple spot sampling smoke device, which includes testing agency and current stabilization machine
Structure can make flue gas to constant flow in each pipeline, be conducive to improve sampling precision by the way that flow-stabilizing mechanism is arranged, and then advantageous
In the precision and stability for improving detection of exhaust gas compositions.By the way that first switch valve is arranged on measurement branch pipe and in flow line
Upper setting second switch valve can carry out the flue gas at different sample points using the opening and closing of first switch valve and second switch valve
It alternately aspirates and detects, be advantageously implemented the automation of different sample point smoke samplings detections, simplify smoke sampling detection
Operation improves the efficiency of smoke sampling detection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of multiple spot sampling smoke device provided by the utility model.
In figure:
1, gas sampling probe；2, branch pipe is measured；3, first switch valve；4, first end cover；5, fume pipe to be measured；6, the one three
Port valve；7, flue gas analyzer；8, the first Smoke pump；9, the second Smoke pump；10, the second triple valve；11, compressed air cylinder；12, it flows
Dynamic branch pipe；13, flue gas main pipe；14, second end cover；15, second switch valve.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
A kind of multiple spot sampling smoke device is present embodiments provided, which can be used in boiler system, to setting
The flue gas at multiple sample points in boiler flue is set to be acquired, and analyze at each sampled point the constituent of flue gas and
The concrete content of each constituent, to obtain the combustion case of boiler fuel.
Specifically, as shown in Figure 1, the multiple spot sampling smoke device includes multiple gas sampling probes 1, testing agency and current stabilization
Mechanism.Wherein, gas sampling probe 1 is tubular structure, and input end can extend into inside boiler flue, to draw boiler flue
Flue gas at sampling.Testing agency mainly includes flue gas analyzer 7, the first Smoke pump 8 and multiple measurement branch pipes 2, measures branch pipe 2
Quantity it is equal with the quantity of gas sampling probe 1 and correspond connection, measure that control measurement branch pipe 2 is provided on branch pipe 2 is logical
Disconnected first switch valve 3, the measurement one end of branch pipe 2 far from gas sampling probe 1 are connect with flue gas analyzer 7 and the first Smoke pump 8.
First Smoke pump 8, which is used to draw flue gas for gas sampling probe 1 and flue gas is made to enter measurement branch pipe 2, provides power, and measurement branch pipe 2 is used
It is imported in flue gas analyzer 7 in the flue gas for drawing gas sampling probe 1, so that flue gas analyzer 7 carries out analysis detection.Current stabilization machine
Structure includes the second Smoke pump 9 and multiple flowing branch pipes 12, and flowing branch pipe 12 is equal with the quantity of gas sampling probe 1 and corresponds
Connection, is provided with a second switch valve 15 on each flowing branch pipe 12, and each output end for flowing branch pipe 12 is with the
The connection of two Smoke pumps 9.Second Smoke pump 9 is used to draw flue gas for gas sampling probe 1 and flue gas is made to enter flowing branch pipe 12 and provides
Power.
In the present embodiment, before the first Smoke pump 8 and flue gas analyzer 7 of testing agency are started to work, institute is first opened
Some second switch valves 15, and start the second Smoke pump 9, by the synchronous sucking gas sampling probe 1 of the flue gas of each sample point, and pass through
It is discharged after corresponding flowing branch pipe 12 and the first Smoke pump 8, to form the flue gas of steady flow, in sampler with after an action of the bowels
The flue gas that stable flow velocity can be drawn when continuous testing agency's detection, is conducive to improve sampling precision and smoke components content is final
Detection accuracy.And due to being respectively provided with first switch valve 3 on each measurement branch pipe 2, is respectively provided on each flowing branch pipe 12
Two switch valves 15, by control first switch valve 3 and second switch valve 15 opening and closing can to the flue gas at different sample points into
Row alternately aspirates and detection, is advantageously implemented the automation of different sample point smoke sampling detections, simplifies smoke sampling detection
Operation, improve smoke sampling detection efficiency.
In order to realize automatic sampling and the detection of flue gas, in the present embodiment, multiple spot sampling smoke device further includes control
Mechanism, control mechanism and flue gas analyzer 7, the first Smoke pump 8, first switch valve 3, the second Smoke pump 9 and second switch valve 15
Equal communication connection can control the on-off and first switch valve 3 of flue gas analyzer 7, the first Smoke pump 8 and the second Smoke pump 9
With the opening and closing of second switch valve 15.Control mechanism can choose PLC control panel, be realized using the control program of carrying to above-mentioned portion
The control of part.
In order to improve the accuracy of flue gas inspection structure, multiple sample points, flue gas are typically provided in existing boiler flue
The quantity of probe tube 1, measurement branch pipe 2 and flowing branch pipe 12 is identical as the quantity of sample point, and each setting of gas sampling probe 1 exists
At one sample point, for drawing the flue gas at the sample point.The quantity of sample point is generally between 4-32, such as can be 4
A, 10,20,30,32 etc., in the present embodiment, the quantity of sample point is four, and is evenly distributed on boiler flue
Interior, corresponding, the quantity of gas sampling probe 1, measurement branch pipe 2 and flowing branch pipe 12 is also four.
In order to which the output end of multiple measurement branch pipes 2 to be connect with flue gas analyzer 7, in measurement branch pipe 2 and flue gas analyzer 7
Between be additionally provided with fume pipe 5 to be measured.Fume pipe 5 to be measured is closed at one end, the tubular structure of another end opening, fume pipe to be measured
Multiple first connecting holes are provided on 5 tube wall, the output end of measurement branch pipe 2 is connected to the first connection hole.In the present embodiment
In, multiple first connecting holes are arranged along the axis direction interval of fume pipe 5 to be measured, and multiple measurement branch pipes 2 are correspondingly connected with multiple
On first connecting hole.
Further, after in order to guarantee the flue gas inspection to a sample point, next sampling can quickly be carried out
The flue gas inspection of point, the volume of fume pipe 5 to be measured should be a little bit smaller as far as possible, so as to quickly drain a sample point residual
Flue gas in fume pipe 5 to be measured makes the flue gas of next sample point fill full fume pipe 5 to be measured as early as possible.
Further, in order to guarantee that each sample point sample time is approximately equal, in the present embodiment, by multiple measurement branch pipes
2 length is set as equal, thus make flue gas flow through measurement branch pipe 2 reach fume pipe 5 to be measured time it is equal, so as to protect
The sample time for demonstrate,proving each sample point is equal.The equal control program for being conducive to simplified control mechanism of each sample point sample time is set
It is fixed.
In order to realize being connected to for multiple flowing branch pipes 12 and the second Smoke pumps 9, flowing branch pipe 12 and the second Smoke pump 9 it
Between be provided with flue gas main pipe 13, flue gas main pipe 13 is closed at one end, the tubular structure of another end opening, on 13 tube wall of flue gas main pipe
Multiple second connecting holes are provided with, the output end of multiple flowing branch pipes 12 is connected to the second connection hole.In the present embodiment, more
A second connecting hole is arranged along the axis direction interval of flue gas main pipe 13, and multiple flowing branch pipes 12 are correspondingly connected with to be connected multiple second
It connects on hole.
Due to containing a large amount of particulate material, multiple spot sampling smoke device each pipeline after a period of operation in flue gas
It is easy to block.In order to avoid the generation of clogging, which further includes flue gas back-blowing mechanism, cigarette
Gas back-blowing mechanism is connected to fume pipe 5 to be measured and flue gas main pipe 13, and flue gas back-blowing mechanism can generate cleaning gas, and will clean
Gas is discharged into inside fume pipe 5 to be measured and flue gas main pipe 13, and is taken after measurement branch pipe 2 and flowing branch pipe 12 into flue gas respectively
Summarize in sample pipe 1, eventually enter into boiler flue, to blowing back the particle in each pipeline to boiler flue, realizes to each
The cleaning operation of pipeline.
Specifically, in the present embodiment, flue gas back-blowing mechanism includes compressed air cylinder 11, is stored in compressed air cylinder 11
The downtake pipe of compressed air, compressed air cylinder 11 is connected to flue gas analyzer 7 and fume pipe to be measured by the first triple valve 6
Between 5, the second exhaust pipe of compressed air cylinder 11 by the second triple valve 10 be connected to flue gas main pipe 13 and the second Smoke pump 9 it
Between.First triple valve 6 and the second triple valve 10 are preferably solenoid valve, and with control mechanism communication connection.
Further, due to flue gas main pipe 13 and fume pipe to be measured 5 have it is closed at one end, in flue gas main pipe 13 and cigarette to be measured
The closed end of tracheae 5 is easy to gather particle, and is not easy to be blown back by flue gas back-blowing mechanism to boiler flue, for the ease of to envelope
Closed end is cleaned, and in the present embodiment, selects that dismountable first end cover 4 is arranged in the closed end of fume pipe 5 to be measured, in cigarette
Dismountable second end cover 14 is arranged in the closed end of gas main pipe 13, thus when needing to close by first end cover 4 and second end cover
14 cover, and when needing to clean, first end cover 4 and second end cover 14 are disassembled.
The working principle of multiple spot sampling smoke device is specific as follows:
Firstly, starting control mechanism, control mechanism controls the first Smoke pump 8 and first switch valve 3 is closed, the second Smoke pump
9 and second switch valve 15 open, and control the second triple valve 10 beat the access between flue gas main pipe 13 and the second Smoke pump 9
It opens, disconnects the access between flue gas main pipe 13 and compressed air cylinder 11, at this time gas sampling probe 1, flowing branch pipe the 12, the 2nd 3
It is sequentially communicated between port valve 10 and the second Smoke pump 9.Under the action of the second Smoke pump 9, flue gas can from boiler flue into
Enter in gas sampling probe 1, and be discharged after flowing successively through flowing branch pipe 12, the second triple valve 10 and the second Smoke pump 9, thus more
The flue gas of steady flow is formed in point flue gas sampling device, so as to subsequent carry out detection of exhaust gas compositions.
When flue gas steady flow in multiple spot sampling smoke device, it can start to carry out detection of exhaust gas compositions, examine
When surveying smoke components, need to detect multiple sample points one by one.When flue gas detects to first sample point, control
The corresponding first switch valve 3 measured on branch pipe 2 of the first Smoke pump of mechanism controls 8 and first sample point processed is opened, and first
Second switch valve 15 on the corresponding flowing branch pipe 12 of sample point is closed, and is controlled the first triple valve 6 and made fume pipe 5 to be measured and the
Access between one Smoke pump 8 is opened, and the access between fume pipe 5 and compressed air cylinder 11 to be measured disconnects, at this time smoke sampling
The corresponding measurement branch pipe 2 of 1, first sample point of pipe, fume pipe to be measured 5, the first triple valve 6, the first Smoke pump 8 and flue gas analysis
It is sequentially communicated between instrument 7.Under the action of the first Smoke pump 8, flue gas can be sucked by gas sampling probe 1, and successively by the
The corresponding measurement branch pipe 2 of one sample point, fume pipe to be measured 5, the first triple valve 6, the first Smoke pump 8 reach flue gas analyzer 7
It is detected, to complete the detection to flue gas at first sample point.
At first sample point after flue gas inspection, start to detect the flue gas at second sample point.Tool
First switch valve 3 on body, first control mechanism control measurement branch pipe 2 corresponding with second sample point is opened, control and
Second switch valve 15 on the corresponding flowing branch pipe 12 of second sample point is closed, then control mechanism control and first sampling
First switch valve 3 on the corresponding measurement branch pipe 2 of point is closed, and is controlled on flowing branch pipe 12 corresponding with first sample point
Second switch valve 15 is opened.The corresponding first switch valve 3 of next sample point is first opened, it is corresponding to close a sample point afterwards
The control method of first switch valve 3 can be effectively prevented from when the corresponding first switch valve 3 of next sample point can not normally be beaten
It opens, and all first switch valves 3 caused by the corresponding first switch valve 3 of a upper sample point has been in close state are located
Occur in the situation of closed state, so as to avoid the appearance for forming negative-pressure vacuum state in fume pipe 5 to be measured.
It is the corresponding measurement branch pipe 2 of 1, second sample point of gas sampling probe, to be measured after the completion of above-mentioned switch valve opens and closes
It is sequentially communicated between fume pipe 5, the first triple valve 6, the first Smoke pump 8 and flue gas analyzer 7.In the effect of the first Smoke pump 8
Under, flue gas can be sucked by gas sampling probe 1, and successively pass through the corresponding measurement branch pipe 2 of second sample point, fume pipe to be measured
5, the first triple valve 6, the first Smoke pump 8 reach flue gas analyzer 7 and are detected, to complete to flue gas at second sample point
Detection.When needing to detect the flue gas at remaining sample point, detection method with to the cigarette at second sample point
Gas detection method is identical, and details are not described herein.
After the completion of the flue gas of all sample points detects, cleaning work can be carried out to multiple spot sampling smoke device, this
When all first switch valve 3 of control mechanism controls and second switch valve 15 open, flue gas analyzer 7, the first Smoke pump 8 and the
Two Smoke pumps 9 are closed, and are controlled the first triple valve 6 and be connected to the access between fume pipe 5 and compressed air cylinder 11 to be measured, block to
The access between fume pipe 5 and the first Smoke pump 8 is surveyed, the second triple valve 10 is connected between flue gas main pipe 13 and compressed air cylinder 11
Access, block the access between flue gas main pipe 13 and the second Smoke pump 9, thus make the downtake pipe of compressed air cylinder 11,
First triple valve 6, fume pipe to be measured 5, measurement branch pipe 2 are connected to gas sampling probe 1, and make the second row of compressed air cylinder 11
Tracheae, the second triple valve 10, flue gas main pipe 13, flowing branch pipe 12 are connected to gas sampling probe 1.11 memory of compressed air cylinder is placed with
Compressed air, compressed air can flow counterflow through each pipeline to which the dust that flue gas is deposited in each pipeline is blown into boiler again
In flue, cleaning work is completed, the spatter property of each pipeline is maintained.
The present embodiment additionally provides a kind of boiler system comprising above-mentioned multiple spot sampling smoke device.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (9)
1. a kind of multiple spot sampling smoke device, including multiple gas sampling probes (1), which is characterized in that further include:
Testing agency, the testing agency include flue gas analyzer (7), the first Smoke pump (8) and multiple measurement branch pipes (2), more
A measurement branch pipe (2) corresponds with multiple gas sampling probes (1) and is connected to, on each measurement branch pipe (2)
Be provided with first switch valve (3), and the output end of each measurement branch pipe (2) with the flue gas analyzer (7) and described
First Smoke pump (8) connection；
Flow-stabilizing mechanism, the flow-stabilizing mechanism include the second Smoke pump (9) and multiple flowing branch pipes (12), multiple flowing branch pipes
(12) it corresponds and is connected to multiple gas sampling probes (1), be provided with second on each flowing branch pipe (12) and open
It closes valve (15), and the output end of each flowing branch pipe (12) is connect with second Smoke pump (9).
2. multiple spot sampling smoke device according to claim 1, which is characterized in that the testing agency further include:
Fume pipe (5) to be measured, fume pipe (5) the to be measured setting the measurement branch pipe (2) and the flue gas analyzer (7) it
Between, the fume pipe (5) to be measured it is closed at one end, the other end is connected to the flue gas analyzer (7), multiple measurement branch pipes
(2) output end is connected to the fume pipe (5) to be measured.
3. multiple spot sampling smoke device according to claim 2, which is characterized in that the flow-stabilizing mechanism further include:
Flue gas main pipe (13), the flue gas main pipe (13) setting the flowing branch pipe (12) and second Smoke pump (9) it
Between, the flue gas main pipe (13) it is closed at one end, the other end is connected to second Smoke pump (9), multiple flowing branch pipes
(12) it is connected to the flue gas main pipe (13).
4. multiple spot sampling smoke device according to claim 3, which is characterized in that the multiple spot sampling smoke device also wraps
It includes:
Flue gas back-blowing mechanism, the flue gas back-blowing mechanism are connected to the fume pipe (5) to be measured and the flue gas main pipe (13), are used
In being blown into cleaning gas to the fume pipe (5) to be measured and the flue gas main pipe (13).
5. multiple spot sampling smoke device according to claim 4, which is characterized in that
The flue gas back-blowing mechanism includes compressed air cylinder (11), and the downtake pipe of the compressed air cylinder (11) passes through first
Triple valve (6) is connected between the flue gas analyzer (7) and the fume pipe to be measured (5), the compressed air cylinder (11)
Second exhaust pipe is connected between the flue gas main pipe (13) and second Smoke pump (9) by the second triple valve (10).
6. multiple spot sampling smoke device according to claim 1, which is characterized in that
The equal length of multiple measurements branch pipe (2).
7. multiple spot sampling smoke device according to claim 1, which is characterized in that
The quantity of flowing branch pipe (12), the gas sampling probe (1) and measurement branch pipe (2) is 4-32.
8. multiple spot sampling smoke device according to claim 1-7, which is characterized in that the multiple spot sampling smoke
Device further include:
Control mechanism, the control mechanism and the flue gas analyzer (7), first Smoke pump (8), the first switch valve
(3), second Smoke pump (9) and the second switch valve (15) equal communication connection.
9. a kind of boiler system, which is characterized in that including the described in any item multiple spot sampling smoke devices of claim 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821979194.4U CN209182113U (en) | 2018-11-28 | 2018-11-28 | A kind of multiple spot sampling smoke device and boiler system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821979194.4U CN209182113U (en) | 2018-11-28 | 2018-11-28 | A kind of multiple spot sampling smoke device and boiler system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539976A (en) * | 2020-11-12 | 2021-03-23 | 新疆华泰重化工有限责任公司 | Be used for gaseous multiple spot sampling test equipment on line |
| CN113252408A (en) * | 2021-05-08 | 2021-08-13 | 西安热工研究院有限公司 | Distributed flue gas collecting and analyzing system |
| CN113932974A (en) * | 2021-09-07 | 2022-01-14 | 中国科学院工程热物理研究所 | Method and device for testing sealing efficiency of turbine disc cavity |
| CN114814097A (en) * | 2022-04-21 | 2022-07-29 | 广东信科检测有限公司 | Boiler flue gas detection device and detection method |
-
2018
- 2018-11-28 CN CN201821979194.4U patent/CN209182113U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539976A (en) * | 2020-11-12 | 2021-03-23 | 新疆华泰重化工有限责任公司 | Be used for gaseous multiple spot sampling test equipment on line |
| CN113252408A (en) * | 2021-05-08 | 2021-08-13 | 西安热工研究院有限公司 | Distributed flue gas collecting and analyzing system |
| CN113932974A (en) * | 2021-09-07 | 2022-01-14 | 中国科学院工程热物理研究所 | Method and device for testing sealing efficiency of turbine disc cavity |
| CN113932974B (en) * | 2021-09-07 | 2023-08-15 | 中国科学院工程热物理研究所 | Turbine disc cavity sealing efficiency testing method and device |
| CN114814097A (en) * | 2022-04-21 | 2022-07-29 | 广东信科检测有限公司 | Boiler flue gas detection device and detection method |
| CN114814097B (en) * | 2022-04-21 | 2024-04-23 | 广东信科检测有限公司 | Boiler flue gas detection device and detection method |
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