CN206627349U - Flue gas online monitoring system and sampler - Google Patents
Flue gas online monitoring system and sampler Download PDFInfo
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- CN206627349U CN206627349U CN201720373304.1U CN201720373304U CN206627349U CN 206627349 U CN206627349 U CN 206627349U CN 201720373304 U CN201720373304 U CN 201720373304U CN 206627349 U CN206627349 U CN 206627349U
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- flue gas
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Abstract
The utility model provides a kind of flue gas online monitoring system and sampler, belongs to environmental monitoring.The flue gas online monitoring system mainly includes sampler, pretreatment unit and monitoring device.Sampler takes out fume sample out of flue, is detected after pretreatment unit into monitoring device.Sampler includes probe tube, barrier sheet is provided with probe tube, for changing the flow area of probe tube.Because flue is bigger, the flue gas flow rate difference of different parts is larger.When flue gas flow rate is higher at probe tube, flue gas is larger to the pressure of barrier sheet, so as to which barrier sheet overcomes the elastic force of torsionspring to be rotated towards the direction of the mouth of pipe away from probe tube, so as to reduce the flow area of probe tube.Velocity of flue gas is bigger, and the rotational angle of barrier sheet is bigger, and the flow area of probe tube is smaller.Therefore, by above-mentioned design, it can ensure that the sample size that diverse location obtains out of flue is consistent as far as possible, ensure the accuracy of monitoring data.
Description
Technical field
Environmental monitoring is the utility model is related to, is filled in particular to a kind of flue gas online monitoring system and sampling
Put.
Background technology
Thermal power plant inevitably results from substantial amounts of flue gas, because these flue gases are caused by the burning of coal,
Therefore contain substantial amounts of sulphur and nitre in flue gas.In order to reduce the pollution to environment, had to before being discharged to these flue gases
The content of sulfur dioxide in flue gas, nitrogen oxides and dust is measured, just may be used when determination data meets environmental requirement
To be discharged.
Thermal power plant usually sets air exhauster in flue gas mouth, made when using flue and smoke stack emission flue gas
Obtain whole flue and be in negative pressure state, discharged so as to which the flue gas in flue is extracted into chimney.In order to determine titanium dioxide in flue
, it is necessary to be sampled out of flue, sample is sent into flue gas automatic monitored control system is supervised the content of sulphur, nitrogen oxides and dust
Survey.But in the prior art, it is larger that the sample determination data taken out by sampling system compares with True Data error, does not have
It is representative.
A kind of flue gas online monitoring system is provided, it is small by the data that the system measures and True Data application condition, can
To reflect the content of the sulfur dioxide in flue, nitrogen oxides exactly.This has important for environmental monitoring, enhancement of environment
Realistic meaning.
Utility model content
The purpose of this utility model is the provision of a kind of flue gas online monitoring system, and it can be more whole than relatively evenly obtaining
The fume sample of individual flue different parts, so as to compare the content of the sulfur dioxide in accurate measurements flue, nitrogen oxides.
Another object of the present utility model is to provide a kind of sampler, and it can be than relatively evenly obtaining whole flue
The fume sample of different parts, so as to provide more representational fume sample for flue gas monitoring device.
What the utility model was realized in:
A kind of flue gas online monitoring system, for monitoring the fume sample in flue, including:
Sampler, for obtaining the sample in flue;The sampler includes delivery pipe and multiple probe tubes, described
Probe tube includes sampling end and connection end, and the connection end connects with the delivery pipe;The probe tube is distributed in different positions
Put;
The probe tube is rectangular tube, and rotary shaft and barrier sheet are provided with the probe tube;
The barrier sheet is arranged on the inside of the probe tube, and the barrier sheet passes through the rotary shaft and the probe tube
Tube wall be rotatably connected;The inwall gap setting at the edge of the barrier sheet and the probe tube;
Torsionspring is provided with the rotary shaft;Under nature, the mouth of pipe of the barrier sheet towards probe tube is opened, and
Set with the tube wall of the probe tube in angle;
Pretreatment unit, the pretreatment unit include concetrated pipe, and the concetrated pipe includes first end and the second end, described
Delivery pipe connects with the first end, and second end is used to connect with the flue;
Flue gas monitoring device and connecting tube, the flue gas monitoring device are used to monitor flue gas pollutant content;The connection
Pipe one end is connected with the concetrated pipe, and the other end is connected with the flue gas monitoring device.
Preferably, limited block is additionally provided with the tube wall of the probe tube, for preventing barrier sheet towards the connection end
Open in direction.
Preferably, it is provided with windmill in the concetrated pipe.
Preferably, the connecting tube includes inlet end, the inlet end is extend into inside the concetrated pipe, the air inlet
The end face at end towards the concetrated pipe first end, it is and vertical with the concetrated pipe length direction.
Preferably, the pretreatment unit also includes heater, the heater is arranged in the concetrated pipe.
Preferably, also including cooling water pipe in the connecting tube, the cooling water pipe is wrapped in the connecting tube;Institute
State connecting tube and the cooling water pipe is integrally formed.
Preferably, flue gas online monitoring system also includes controller, temperature sensor and electromagnetic valve of flow control;
The controller is connected with the electromagnetic valve of flow control, for controlling the water flow in the cooling water pipe;
The temperature sensor is arranged in the connecting tube, and the temperature sensor is connected with the controller.
Preferably, the connecting tube is connected by flange with the concetrated pipe, the inlet end of the connecting tube is provided with
Screen pack, the screen pack are detachably connected with the connecting tube.
Preferably, the flue gas online monitoring system also includes air exhauster, the air exhauster is arranged on the concetrated pipe
The second end.
A kind of sampler, for obtaining the sample in flue;The sampler includes delivery pipe and multiple probe tubes,
The probe tube includes sampling end and connection end, and the connection end connects with the delivery pipe;The probe tube is distributed in difference
Position;
The probe tube is rectangular tube, and rotary shaft and barrier sheet are provided with the probe tube;
The barrier sheet is arranged on the inside of the probe tube, can be turned by the rotary shaft and the tube wall of the probe tube
Dynamic connection;The inwall gap setting at the edge of the barrier sheet and the probe tube;
Torsionspring is provided with the rotary shaft;Under nature, the mouth of pipe of the barrier sheet towards the probe tube is beaten
Open, and set with the tube wall of the probe tube in angle;
Limited block is additionally provided with the tube wall of the probe tube, for preventing barrier sheet from being opened towards the connection extreme direction.
The beneficial effects of the utility model are:Flue gas online monitoring system that the utility model is obtained by above-mentioned design and
Sampler, because the cross-sectional area of flue is bigger, the flue gas flow rate difference of different parts is larger.The flue gas stream at probe tube
When speed is higher, flue gas is larger to the pressure of barrier sheet, so as to which barrier sheet overcomes the elastic force of torsionspring towards the pipe of remote probe tube
The direction of mouth rotates, so as to reduce the flow area of probe tube.Velocity of flue gas is bigger, and the rotational angle of barrier sheet is bigger, takes
The flow area of sample pipe is smaller.Therefore, by above-mentioned design, the sample size that diverse location obtains out of flue can be ensured as far as possible
Unanimously, the accuracy of monitoring data is ensured.
Brief description of the drawings
, below will be to required in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it will be appreciated that and the following drawings illustrate only some embodiments of the present utility model, therefore not
The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work,
Other related accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the assembling structure schematic diagram of the flue gas online monitoring system that the utility model embodiment provides and flue;
Fig. 2 is the left view for Fig. 1 that the utility model embodiment provides;
Fig. 3 is the sectional view for the probe tube that the utility model embodiment provides;
Fig. 4 is the sectional view for the probe tube that the utility model embodiment provides;
Fig. 5 is the sectional view for the probe tube that the utility model embodiment provides.
Icon:100- flue gas online monitoring systems;110- samplers;112- delivery pipes;114- probe tubes;1142- takes
Sample end;1144- connection ends;1146- rotary shafts;1148- barrier sheets;1149- limited blocks;120- pretreatment units;122- gathers
Pipe;1222- first ends;The ends of 1224- second;124- heaters;126- windmills;130- flue gas monitoring devices;140- connecting tubes;
150- cooling water pipes;160- controllers;170- temperature sensors;180- electromagnetic valve of flow control;190- air exhausters;200- cigarettes
Road.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shown
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of the utility model protection.
Therefore, below the detailed description of the embodiment of the present utility model to providing in the accompanying drawings be not intended to limit will
The scope of the utility model of protection is sought, but is merely representative of selected embodiment of the present utility model.Based on the utility model
In embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Mode, belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that the term of indicating position or position relationship is based on accompanying drawing
Shown orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply institute
The equipment or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With new limitation.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be
Mechanically connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship be based on orientation shown in the drawings or position relationship, or
The utility model product using when the orientation usually put or position relationship, be for only for ease of description the utility model and letter
Change description, rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for area
Divide description, and it is not intended that instruction or hint relative importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent the structure
Must be fully horizontal, but can be slightly tilted.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is on or below second feature
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Directly over two features and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature is special second
Under sign, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or are merely representative of fisrt feature level
Highly it is less than second feature.
Embodiment:
Such as Fig. 1, a kind of flue gas online monitoring system 100 is present embodiments provided, is mainly used in monitoring thermal power plant cigarette
The composition of flue gas in road 200.This flue gas online monitoring system 100 mainly includes sampler 110, the and of pretreatment unit 120
Flue gas monitoring device 130.The monitoring system is arranged on flue 200, and sampler 110 is arranged on inside flue 200, and flue gas leads to
Flue gas monitoring device 130 is entered after the pretreatment unit 120 that over sampling device 110 is entered outside flue 200 to be detected.
Such as Fig. 2, Fig. 3 and Fig. 4, sampler 110 includes delivery pipe 112 and multiple probe tubes 114.Probe tube 114 includes
Sampling end 1142 and connection end 1144, probe tube 114 are connected by connection end 1144 with connecting tube 140.In order to obtain flue 200
The fume sample of interior different parts, multiple probe tubes 114 are distributed in the diverse location in flue 200.At same section of flue 200
On face, probe tube 114 is uniformly arranged into matrix type.
Probe tube 114 is rectangular tube, and rotary shaft 1146 and barrier sheet 1148 are provided with probe tube 114.Barrier sheet
1148 be rectangular plate-like, and the edge of barrier sheet 1148 is rotatably connected by rotary shaft 1146 and probe tube 114.In rotary shaft
It is provided with torsionspring (not shown) on 1146, in its natural state, barrier sheet 1148 is towards probe tube 114 for torsionspring
Open in mouth of pipe direction.Also, the tube wall of barrier sheet 1148 and probe tube 114 is set in angle.In order to ensure to hinder at any time
Catch 1148 will not block probe tube 114 completely, the edge of barrier sheet 1148 and the inwall gap setting of probe tube 114.For
Avoid barrier sheet 1148 from being opened towards connection end 1144 direction of probe tube 114, limited block is provided with the tube wall of probe tube 114
1149.When barrier sheet 1148 abuts with limited block 1149, barrier sheet 1148 is vertical with the tube wall of probe tube 114.
Such as Fig. 5, pretreatment unit 120 is used to handle the fume sample from probe tube 114, main to include set
Pipe 122, windmill 126 and heater 124.Concetrated pipe 122 is hollow tubular structure, generally L-shaped, including the He of first end 1222
Second end 1224.First end 1222 is used to connect with delivery pipe 112, and the second end 1224 is used to connect with flue 200.Windmill 126
It is arranged in concetrated pipe 122, and direction is in opposite direction with flow of flue gas so that windmill 126 can in the presence of flow of flue gas
To rotate.By the rotation of windmill 126, the fume sample of diverse location can be sufficiently mixed in flue 200.Heater
124 are arranged in concetrated pipe 122, and for being thermally dried to fume sample, heating wire is used in the present embodiment.
In order to more easily obtain fume sample, the second end 1224 of concetrated pipe 122 is provided with air exhauster 190, by cigarette
Gas is pumped into out of flue 200 in concetrated pipe 122.
Such as Fig. 5, flue gas monitoring device is connected by connecting tube 140 with pretreatment unit 120.Connecting tube 140 includes air inlet
End, inlet end extend into inside concetrated pipe 122, and the end face of inlet end is towards the first end 1222 of concetrated pipe 122, i.e. direction
The direction of flow of flue gas, and it is vertical with the length direction of concetrated pipe 122.Cooling water pipe 150 is additionally provided with connecting tube 140,
Cooling water pipe 150 is spirally wound in connecting tube 140.In order to preferably radiate, cooling water pipe 150 and connecting tube in the present embodiment
140 are integrally formed.Flue gas monitoring device 130 is prior art, is not described further.
In order to filter the dust in flue gas, screen pack is provided with the inlet end of connecting tube 140.Screen pack and connecting tube
140 are detachably connected, and connecting tube 140 is connected with flue 200 by flange.When need clear up screen pack when, take apart flange incited somebody to action
Filter screen removes cleaning.
Flue gas online monitoring system 100 also includes controller 160, temperature sensor 170 and electromagnetic valve of flow control 180.
Controller 160 is connected with electromagnetic valve of flow control 180, for controlling the water flow in cooling water pipe 150;Temperature sensor
170 are arranged in connecting tube 140, and temperature sensor 170 is connected with controller 160.Controller 160 is controlled using PLC, and PLC exists
It is commonplace in the prior art, controller 160 is not described in detail.
Due to being provided with cooling water pipe 150 in connecting tube 140, flue gas monitoring device is passed into so as to effectively reduce
The temperature of flue gas in 130, prevents high-temperature flue gas from bringing harmful effect to the service life of flue gas monitoring device 130.Also, work as cigarette
When temperature degree is higher, temperature sensor 170 gives the signal of controller 160, and controller causes the aperture of electromagnetic valve of flow control 180 to become
Greatly so that it is big by the cold water quantitative change of cooling water pipe 150, improve cooling effect.When flue-gas temperature is relatively low, controller 160 makes
It must be diminished by the cool water quantity of cooling water pipe 150.
The operation principle of whole flue gas online monitoring system 100 is as follows:Flue gas in flue 200 is entered by probe tube 114
Enter to pretreatment unit 120, after heat drying mixes, a part enters flue gas monitoring device 130 by connecting tube 140
Middle its composition of monitoring;Another part is returned in flue 200.Because the diameter of flue 200 is bigger, the diverse location in same section
The flue gas flow rate difference of different time is larger.Probe tube 114 in the present embodiment is provided with barrier sheet 1148, can cause flue
The smoke sampling amount of diverse location is as far as possible consistent in 200, ensures the accuracy of data.When the flue gas flow rate of a certain position is larger
When, in the presence of flow of flue gas, the power that barrier sheet 1148 is subject to is bigger, so that the mouth of pipe direction towards remote probe tube 114
Rotate, now, the gap between barrier sheet 1148 and probe tube 114 reduces, i.e., the flow area of probe tube 114 reduces.When
When the flue gas flow rate of a certain position is smaller, then the flow area of probe tube 114 is larger.Therefore, can cause as far as possible in flue 200
The smoke sampling amount of diverse location is as far as possible consistent.
It should be noted that the present embodiment is preferred embodiment, in other embodiments, can on the tube wall of probe tube 114
To be not provided with limited block 1149, now, from the bigger torsionspring of stiffness factor, ensure that barrier sheet 1148 will not be in flue gas
Opened under effect towards the direction of connection end 1144 of probe tube 114;Or windmill 126 or heater 124 can also be not provided with.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for
For those skilled in the art, the utility model can have various modifications and variations.It is all in spirit of the present utility model and former
Within then, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. flue gas online monitoring system, for monitoring the fume sample in flue, it is characterised in that including:Sampler, for obtaining the sample in flue;The sampler includes delivery pipe and multiple probe tubes, the sampling Pipe includes sampling end and connection end, and the connection end connects with the delivery pipe;The probe tube is distributed in different positions;The probe tube is rectangular tube, and rotary shaft and barrier sheet are provided with the probe tube;The barrier sheet is arranged on the inside of the probe tube, and the barrier sheet passes through the rotary shaft and the pipe of the probe tube Wall is rotatably connected;The inwall gap setting at the edge of the barrier sheet and the probe tube;Torsionspring is provided with the rotary shaft;Under nature, the barrier sheet towards probe tube the mouth of pipe open, and with institute The tube wall for stating probe tube is set in angle;Pretreatment unit, the pretreatment unit include concetrated pipe, and the concetrated pipe includes first end and the second end, the conveying Pipe connects with the first end, and second end is used to connect with the flue;Flue gas monitoring device and connecting tube, the flue gas monitoring device are used to monitor flue gas pollutant content;The connecting tube one End is connected with the concetrated pipe, and the other end is connected with the flue gas monitoring device.
- 2. flue gas online monitoring system according to claim 1, it is characterised in that also set up on the tube wall of the probe tube Limited location block, for preventing barrier sheet from being opened towards the connection extreme direction.
- 3. flue gas online monitoring system according to claim 1, it is characterised in that be provided with windmill in the concetrated pipe.
- 4. flue gas online monitoring system according to claim 1, it is characterised in that the connecting tube includes inlet end, institute Inlet end is stated to extend into inside the concetrated pipe, the end face of the inlet end towards the concetrated pipe first end, and with institute It is vertical to state concetrated pipe length direction.
- 5. flue gas online monitoring system according to claim 1, it is characterised in that the pretreatment unit also includes heating Device, the heater are arranged in the concetrated pipe.
- 6. flue gas online monitoring system according to claim 4, it is characterised in that also include cooling water in the connecting tube Pipe, the cooling water pipe are wrapped in the connecting tube;The connecting tube and the cooling water pipe are integrally formed.
- 7. flue gas online monitoring system according to claim 6, it is characterised in that flue gas online monitoring system also includes control Device, temperature sensor and electromagnetic valve of flow control processed;The controller is connected with the electromagnetic valve of flow control, for controlling the water flow in the cooling water pipe;The temperature sensor is arranged in the connecting tube, and the temperature sensor is connected with the controller.
- 8. flue gas online monitoring system according to claim 1, it is characterised in that the connecting tube by flange with it is described Concetrated pipe connects, and the inlet end of the connecting tube is provided with screen pack, and the screen pack is detachably connected with the connecting tube.
- 9. flue gas online monitoring system according to claim 1, it is characterised in that the flue gas online monitoring system also wraps Air exhauster is included, the air exhauster is arranged on the second end of the concetrated pipe.
- A kind of 10. sampler, for obtaining the sample in flue, it is characterised in that the sampler include delivery pipe and Multiple probe tubes, the probe tube include sampling end and connection end, and the connection end connects with the delivery pipe;The probe tube It is distributed in different positions;The probe tube is rectangular tube, and rotary shaft and barrier sheet are provided with the probe tube;The barrier sheet is arranged on the inside of the probe tube, is rotatably connected by the rotary shaft and the tube wall of the probe tube Connect;The inwall gap setting at the edge of the barrier sheet and the probe tube;Torsionspring is provided with the rotary shaft;Under nature, the mouth of pipe of the barrier sheet towards the probe tube is opened, and Set with the tube wall of the probe tube in angle;Limited block is additionally provided with the tube wall of the probe tube, for preventing barrier sheet from being opened towards the connection extreme direction.
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CN201720373304.1U CN206627349U (en) | 2017-04-11 | 2017-04-11 | Flue gas online monitoring system and sampler |
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CN201720373304.1U CN206627349U (en) | 2017-04-11 | 2017-04-11 | Flue gas online monitoring system and sampler |
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CN107991148A (en) * | 2018-01-03 | 2018-05-04 | 南京益彩环境科技股份有限公司 | Foldable flue gas sampling device and flue system |
CN108007731A (en) * | 2018-01-16 | 2018-05-08 | 国电环境保护研究院有限公司 | A kind of gas fired-boiler smoke sampling system and smoke sampling method |
CN108872487A (en) * | 2018-07-08 | 2018-11-23 | 江翠珍 | Source of atmospheric pollution multi-pollutant online auto monitoring device |
CN109030123A (en) * | 2018-08-27 | 2018-12-18 | 佛山科学技术学院 | A kind of air sampler for hot environment |
CN109342253A (en) * | 2018-11-29 | 2019-02-15 | 安徽工业大学 | A kind of loop heat pipe capillary core performance testing device and its test method |
CN109991048A (en) * | 2019-04-30 | 2019-07-09 | 国电科学技术研究院有限公司 | Flue gas automatic monitored control system and its sampler, denitrating system |
CN110793815A (en) * | 2019-10-30 | 2020-02-14 | 南京透明度能源科技有限公司 | Matrix type flue gas sampling device |
CN113341080A (en) * | 2021-08-06 | 2021-09-03 | 国网浙江省电力有限公司营销服务中心 | Carbon emission monitoring and alarming system for power production |
CN114544274A (en) * | 2022-02-25 | 2022-05-27 | 北京建筑材料科学研究总院有限公司 | Nitrogen oxide collecting device for cement production |
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CN107991148A (en) * | 2018-01-03 | 2018-05-04 | 南京益彩环境科技股份有限公司 | Foldable flue gas sampling device and flue system |
CN108007731A (en) * | 2018-01-16 | 2018-05-08 | 国电环境保护研究院有限公司 | A kind of gas fired-boiler smoke sampling system and smoke sampling method |
CN108007731B (en) * | 2018-01-16 | 2024-03-22 | 国电环境保护研究院有限公司 | Gas boiler flue gas sampling system and flue gas sampling method |
CN108872487A (en) * | 2018-07-08 | 2018-11-23 | 江翠珍 | Source of atmospheric pollution multi-pollutant online auto monitoring device |
CN109030123A (en) * | 2018-08-27 | 2018-12-18 | 佛山科学技术学院 | A kind of air sampler for hot environment |
CN109342253B (en) * | 2018-11-29 | 2024-02-02 | 安徽工业大学 | Loop heat pipe capillary core performance testing device and testing method thereof |
CN109342253A (en) * | 2018-11-29 | 2019-02-15 | 安徽工业大学 | A kind of loop heat pipe capillary core performance testing device and its test method |
CN109991048A (en) * | 2019-04-30 | 2019-07-09 | 国电科学技术研究院有限公司 | Flue gas automatic monitored control system and its sampler, denitrating system |
CN110793815A (en) * | 2019-10-30 | 2020-02-14 | 南京透明度能源科技有限公司 | Matrix type flue gas sampling device |
CN113341080B (en) * | 2021-08-06 | 2021-10-26 | 国网浙江省电力有限公司营销服务中心 | Carbon emission monitoring and alarming system for power production |
CN113341080A (en) * | 2021-08-06 | 2021-09-03 | 国网浙江省电力有限公司营销服务中心 | Carbon emission monitoring and alarming system for power production |
CN114544274A (en) * | 2022-02-25 | 2022-05-27 | 北京建筑材料科学研究总院有限公司 | Nitrogen oxide collecting device for cement production |
CN114544274B (en) * | 2022-02-25 | 2023-10-31 | 北京建筑材料科学研究总院有限公司 | Nitrogen oxide collecting device for cement production |
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