CN220322854U - Constant-speed sampling device for nitrogen oxide concentration at outlet of denitration reactor - Google Patents
Constant-speed sampling device for nitrogen oxide concentration at outlet of denitration reactor Download PDFInfo
- Publication number
- CN220322854U CN220322854U CN202321979744.3U CN202321979744U CN220322854U CN 220322854 U CN220322854 U CN 220322854U CN 202321979744 U CN202321979744 U CN 202321979744U CN 220322854 U CN220322854 U CN 220322854U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- outlet
- constant
- sampling tube
- bottom plate
- 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.)
- Active
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000005070 sampling Methods 0.000 title claims abstract description 67
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003546 flue gas Substances 0.000 claims abstract description 46
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 244000309464 bull Species 0.000 claims description 5
- 239000000779 smoke Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a constant-speed sampling device for the concentration of nitrogen oxides at an outlet of a denitration reactor, which relates to the technical field of flue gas detection and comprises a bottom plate, a conical plate and a rotating blade, wherein a flue gas discharge pipe is arranged at one side of the top end of the bottom plate, a plurality of detection tanks are arranged at the middle position of the top end of the bottom plate, a flue gas outlet pipe is arranged at one side of the top end of the bottom plate, which is far away from the flue gas discharge pipe, a plurality of sampling pipes are arranged at one side, which is close to the detection tanks, of the flue gas discharge pipe, a mounting ring is arranged on the inner wall of each sampling pipe, and cavities are formed at the upper end and the lower end of the inside of each mounting ring. The utility model can control the space of smoke flow through adjusting the power-on current of the electromagnet, the flow speed is increased if the circulating space is small, otherwise, the flow speed is reduced, the rotating rod is driven to rotate by the driving motor, the rotating blades are driven to rotate by the rotating rod, and the control of the flow speed of the smoke is realized by the rotating of the rotating blades, so that the flow speed of the sampled pipeline is the same.
Description
Technical Field
The utility model relates to the technical field of flue gas detection, in particular to a constant-speed sampling device for the concentration of nitrogen oxides at an outlet of a denitration reactor.
Background
The working principle of desulfurization and denitrification refers to that generated nitrogen oxides are reduced into nitrogen, so that the nitrogen oxides in the flue gas are removed, and the flue gas can be divided into wet denitration and dry denitration according to treatment processes.
The constant speed sampling is a special method in flue dust sampling, namely, in order to obtain a representative sample, the speed of the dust-containing flue gas entering a sampling nozzle is equal to the speed of the flue gas at the point in a flue in the whole sampling process, when the speed of the flue gas at a measuring point is smaller than the speed of the flue gas entering the sampling nozzle, the measured smoke concentration value is lower, and when the speed of the flue gas at the measuring point is larger than the speed of the flue gas entering the sampling nozzle, the measured smoke concentration value is higher.
Therefore, the flue gas flow rate in each sampling pipeline needs to be controlled so that the flue gas circulation speed is equal, and therefore, a constant-speed sampling device for the concentration of nitrogen oxides at the outlet of the denitration reactor needs to be used.
Disclosure of Invention
The utility model aims to provide a constant-speed sampling device for the concentration of nitrogen oxides at the outlet of a denitration reactor, which solves the problems in the prior art Collecting The flue gas flow rate with the sample speed being larger or smaller than the sampling point causes the sampling result to deviate.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the constant-speed sampling device for the concentration of the nitrogen oxides at the outlet of the denitration reactor comprises a bottom plate, a conical plate and a rotating blade;
a smoke discharge pipe is arranged on one side of the top end of the bottom plate, a plurality of detection tanks are arranged at the middle position of the top end of the bottom plate, a smoke outlet pipe is arranged on one side of the top end of the bottom plate far away from the smoke discharge pipe, a plurality of sampling pipes are arranged on one side of the smoke discharge pipe close to the detection tanks, a mounting ring is arranged on the inner wall of the sampling pipe, cavities are formed at the upper end and the lower end of the inner part of the mounting ring, electromagnets are arranged on one side of the inner part of the cavities, magnetic springs are arranged in the inner parts of the cavities, the magnetic springs are arranged in the cavity far away from one side of the electromagnet, the outer wall of the cavity is sleeved with the fixed springs, one end of the push rod is provided with the conical plate, the bottom end of the sampling tube is provided with the driving motor, the output end of the driving motor is provided with the rotating rod, and a plurality of turning vanes are installed to the outer wall of bull stick, gas velocity of flow detector is installed on the top of sampling tube, and detects one side at jar top and install nitrogen oxide sensor, detect the opposite side at jar top and install oxygen sensor.
Preferably, one end of the sampling tube penetrates through the detection tank, and one end of the sampling tube extends to the inside of the flue gas outlet tube.
Preferably, the end of the push rod, which is far away from the electromagnet, penetrates through the mounting ring, and the end of the push rod, which is far away from the electromagnet, extends to one side of the mounting ring.
Preferably, the fixed springs are fixedly arranged between the magnetic springs and the cavity, and one side of the conical plate extends to the inside of the mounting ring.
Preferably, the top end of the rotating rod penetrates through the sampling tube to extend to the top end of the inside of the sampling tube, and the rotating rod is installed on the top end of the inside of the sampling tube through the rotating shaft.
Preferably, the bottom end of the gas flow rate detector passes through the sampling tube, and the bottom end of the gas flow rate detector extends to the inside of the sampling tube.
Preferably, the bottom ends of the oxygen sensor and the nitrogen oxide sensor both pass through the detection tank, and the bottom ends of the oxygen sensor and the nitrogen oxide sensor both extend to the inside of the detection tank.
Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses a gas flow rate detector is used for measuring the flow rate of flue gas, including the fixed spring compression, the push rod is promoted through the magnetic spring, and make fixed spring compression, promote the conical plate through the push rod, make the conical plate draw from the inside of collar gradually, make the passageway of collar enlarge gradually, through the size of adjusting electro-magnet circular telegram electric current, can control the space that the flue gas circulated, the space of circulation is little, then the velocity of flow increases, otherwise then the velocity of flow diminishes, start driving motor later, it is rotatory to drive the bull stick through driving motor, it is rotatory to drive rotor blade through the bull stick, through rotor blade's rotation, can control the velocity of flow of the inside flue gas of sampling tube, detect the velocity of flow through the gas flow rate detector, this structure has realized the control to the flue gas flow rate, the pipeline velocity of flow that makes the sample is the same.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 1B according to the present utility model.
In the figure: 1. a bottom plate; 2. a detection tank; 3. a flue gas outlet pipe; 4. a sampling tube; 5. an oxygen sensor; 6. a nitrogen oxide sensor; 7. a gas flow rate detector; 8. a smoke discharge pipe; 9. an electromagnet; 10. a conical plate; 11. a push rod; 12. a fixed spring; 13. a magnetic spring; 14. a mounting ring; 15. a cavity; 16. a driving motor; 17. rotating the blade; 18. and (5) rotating the rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1: referring to fig. 1-4, a constant-speed sampling device for the concentration of nitrogen oxides at the outlet of a denitration reactor comprises a bottom plate 1, a conical plate 10 and a rotating blade 17;
a smoke discharge pipe 8 is arranged on one side of the top end of the bottom plate 1, a plurality of detection tanks 2 are arranged at the middle position of the top end of the bottom plate 1, a smoke outlet pipe 3 is arranged on one side of the top end of the bottom plate 1 far away from the smoke discharge pipe 8, a plurality of sampling pipes 4 are arranged on one side of the smoke discharge pipe 8 close to the detection tanks 2, a mounting ring 14 is arranged on the inner wall of the sampling pipes 4, cavities 15 are respectively formed in the upper end and the lower end of the inside of the mounting ring 14, electromagnets 9 are respectively arranged on one side of the inside of the cavities 15, magnetic springs 13 are respectively arranged in the interiors of the cavities 15, push rods 11 are respectively arranged in the cavities 15 on one side of the magnetic springs 13 far away from the electromagnets 9, fixed springs 12 are respectively sleeved on the outer walls of the push rods 11 in the cavities 15, conical plates 10 are arranged at one ends of the push rods 11, a driving motor 16 is arranged at the bottom ends of the sampling pipes 4, a rotating rod 18 is arranged at the output ends of the driving motor 16, a plurality of rotating blades 17 are arranged on the outer walls of the rotating rods 18, a gas flow rate detector 7 is arranged at the top ends of the sampling pipes 4, a nitrogen oxide sensor 6 is arranged on one side of the top end of the detection tanks 2, and an oxygen sensor 5 is arranged on the other side of the top of the detection tanks 2;
one end of the sampling tube 4 passes through the detection tank 2, and one end of the sampling tube 4 extends to the inside of the flue gas outlet tube 3;
one end of the push rod 11 far away from the electromagnet 9 penetrates through the mounting ring 14, and one end of the push rod 11 far away from the electromagnet 9 extends to one side of the mounting ring 14;
the fixed springs 12 are fixedly arranged between the magnetic springs 13 and the cavity 15, and one side of the conical plate 10 extends to the inside of the mounting ring 14;
the top end of the rotating rod 18 penetrates through the sampling tube 4 to extend to the top end inside the sampling tube 4, and the rotating rod 18 is arranged at the top end inside the sampling tube 4 through a rotating shaft;
the bottom end of the gas flow rate detector 7 passes through the sampling tube 4, and the bottom end of the gas flow rate detector 7 extends into the sampling tube 4;
the bottom ends of the oxygen sensor 5 and the nitrogen oxide sensor 6 pass through the detection tank 2, and the bottom ends of the oxygen sensor 5 and the nitrogen oxide sensor 6 extend into the detection tank 2;
specifically, as shown in fig. 1, 2, 3 and 4, when the mechanism is used, the space through which the flue gas circulates can be controlled by adjusting the power-on current of the electromagnet 9, the circulating space is small, the flow speed is increased, otherwise, the flow speed is decreased, the driving motor 16 is started, the rotating rod 18 is driven to rotate by the driving motor 16, the rotating blade 17 is driven to rotate by the rotating rod 18, and the flow speed of the flue gas in the sampling tube 4 can be controlled by the rotation of the rotating blade 17.
Working principle: the flue gas enters the inside of the sampling tube 4 through the flue gas discharge tube 8, because the relative magnetic poles of the electromagnet 9 and the magnetic spring 13 are the same, after the electromagnet 9 is electrified, magnetic repulsion force can be generated on the magnetic spring 13, the magnetic spring 13 moves in the cavity 15 towards the direction far away from the electromagnet 9, the push rod 11 is pushed by the magnetic spring 13, the fixed spring 12 is compressed, the conical plate 10 is pushed by the push rod 11, the conical plate 10 is gradually pulled out from the inside of the mounting ring 14, the passage of the mounting ring 14 is gradually enlarged, the size of the electrified current of the electromagnet 9 is regulated, the space for flue gas circulation can be controlled, the circulated space is small, the flow rate is increased, otherwise, the flow rate is reduced, then the driving motor 16 is started, the driving motor 16 is used for driving the rotating rod 18 to rotate, the rotating blade 17 is used for driving the rotating, the rotating blade 17 is used for controlling the flow rate of flue gas inside the sampling tube 4, the flow rate of the flue gas is detected by the gas flow rate detector 7, the flow rate of the flue gas inside the sampling tube 4 is controlled by controlling the size of the electrified current of the electromagnet 9 inside the different sampling tube, the flue gas inside the sampling tube 4 is the same, then the flow rate of the flue gas inside the sampling tube 4 is detected by the flow rate of the flue gas is detected by the oxygen sensor 2, and the nitrogen oxide concentration inside the flue gas is detected by the flue gas sensor 3, and the nitrogen oxide concentration is detected by the nitrogen oxide sensor through the flue gas sensor 3, and the inside the flue gas sensor is detected by the inside the flue gas sensor.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a denitration reactor export nitrogen oxide concentration constant speed sampling device, includes bottom plate (1), its characterized in that: the device also comprises a conical plate (10) and a rotating blade (17);
the utility model discloses a flue gas detecting device, including bottom plate (1), flue gas discharge pipe (8), bottom plate (1), a plurality of detection jar (2) are installed on one side on top of bottom plate (1), flue gas outlet pipe (3) are installed on one side that flue gas discharge pipe (8) were kept away from on top intermediate position department of bottom plate (1), and flue gas discharge pipe (8) are close to one side of detection jar (2) and install a plurality of sampling tubes (4), installing collar (14) are installed to the inner wall of sampling tube (4), and cavity (15) have all been seted up at the upper and lower both ends of installing collar (14) inside, electro-magnet (9) are all installed to one side of cavity (15), and the inside of cavity (15) all is provided with magnetic spring (13), push rod (11) are all installed to the inside of cavity (13) one side cavity (15) of keeping away from electro-magnet (9), and the outer wall of cavity (15) all overlaps and is equipped with fixed spring (12), conical plate (10) are installed to the one end of push rod (11), and driving motor (16) are installed to the bottom of sampling tube (4), driving motor (16) output end (18) all has seted up cavity (15), and the outer wall (18) of rotating mass flow rate meter (7) are installed to the outer wall (17), and one side at the top end of the detection tank (2) is provided with a nitrogen oxide sensor (6), and the other side at the top end of the detection tank (2) is provided with an oxygen sensor (5).
2. The constant-speed sampling device for the concentration of nitrogen oxides at the outlet of a denitration reactor according to claim 1, wherein: one end of the sampling tube (4) penetrates through the detection tank (2), and one end of the sampling tube (4) extends to the inside of the flue gas outlet tube (3).
3. The constant-speed sampling device for the concentration of nitrogen oxides at the outlet of a denitration reactor according to claim 1, wherein: one end of the push rod (11) far away from the electromagnet (9) penetrates through the mounting ring (14), and one end of the push rod (11) far away from the electromagnet (9) extends to one side of the mounting ring (14).
4. The constant-speed sampling device for the concentration of nitrogen oxides at the outlet of a denitration reactor according to claim 1, wherein: the fixed springs (12) are fixedly arranged between the magnetic springs (13) and the cavity (15), and one side of the conical plate (10) extends to the inside of the mounting ring (14).
5. The constant-speed sampling device for the concentration of nitrogen oxides at the outlet of a denitration reactor according to claim 1, wherein: the top of bull stick (18) passes sampling tube (4) and extends to the inside top of sampling tube (4), and bull stick (18) are installed on the inside top of sampling tube (4) through the pivot.
6. The constant-speed sampling device for the concentration of nitrogen oxides at the outlet of a denitration reactor according to claim 1, wherein: the bottom end of the gas flow rate detector (7) penetrates through the sampling tube (4), and the bottom end of the gas flow rate detector (7) extends to the inside of the sampling tube (4).
7. The constant-speed sampling device for the concentration of nitrogen oxides at the outlet of a denitration reactor according to claim 1, wherein: the bottom ends of the oxygen sensor (5) and the nitrogen oxide sensor (6) all penetrate through the detection tank (2), and the bottom ends of the oxygen sensor (5) and the nitrogen oxide sensor (6) all extend to the inside of the detection tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321979744.3U CN220322854U (en) | 2023-07-26 | 2023-07-26 | Constant-speed sampling device for nitrogen oxide concentration at outlet of denitration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321979744.3U CN220322854U (en) | 2023-07-26 | 2023-07-26 | Constant-speed sampling device for nitrogen oxide concentration at outlet of denitration reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220322854U true CN220322854U (en) | 2024-01-09 |
Family
ID=89413055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321979744.3U Active CN220322854U (en) | 2023-07-26 | 2023-07-26 | Constant-speed sampling device for nitrogen oxide concentration at outlet of denitration reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220322854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118130731A (en) * | 2024-05-10 | 2024-06-04 | 山西泰瑞祥科技有限公司 | Carbon monoxide concentration monitoring system and method |
-
2023
- 2023-07-26 CN CN202321979744.3U patent/CN220322854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118130731A (en) * | 2024-05-10 | 2024-06-04 | 山西泰瑞祥科技有限公司 | Carbon monoxide concentration monitoring system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220322854U (en) | Constant-speed sampling device for nitrogen oxide concentration at outlet of denitration reactor | |
| CN106353457B (en) | A kind of detection flue gas SO absorbed based on salt3Method and system | |
| CN201740683U (en) | Fly ash constant-speed sampling device of power station boiler | |
| CN113933461A (en) | Multidirectional air monitoring method | |
| CN205656041U (en) | Power station flue gas flying dust sampling device | |
| CN107677517A (en) | A kind of cross-sectional scans formula flue dust, flue gas sampler | |
| CN202748246U (en) | Novel rotary full-automatic pulverized coal sampling device | |
| CN221782214U (en) | A classification detection device for oxygen, sulfur and oxide gases | |
| CN215596987U (en) | Flue gas monitoring devices convenient to installation and regulation | |
| CN215339414U (en) | Air quality early warning device for atmosphere pollution prevention and control | |
| CN214745836U (en) | Device for automatically cleaning flue | |
| CN216593928U (en) | Dust pelletizing system pressure, wind speed detecting system | |
| CN111693342B (en) | A dust removal device and method for SCR ammonia escape measurement instrument in a coal-fired power plant | |
| CN210613147U (en) | A long bag low pressure pulse bag filter | |
| CN114324237B (en) | Ammonia escape detection device and method for flue gas denitration system | |
| CN207674679U (en) | A kind of changes in temperature air curtain | |
| CN217211718U (en) | Boiler flying dust sampling device of thermal power factory | |
| CN207488030U (en) | A kind of cross-sectional scans formula flue dust, flue gas sampler | |
| CN102392675B (en) | Method and device for collecting ventilation air methane on top of diffuser of main fan of coal mine | |
| CN219984339U (en) | Industrial silicon desulfurization dust collector capable of adjusting temperature in real time | |
| CN213689098U (en) | C-level clean area microbial environment monitoring device | |
| CN212083383U (en) | Flue gas detection device with filtering separation | |
| CN114992665B (en) | Power station boiler temperature dust monitoring equipment and monitoring method thereof | |
| CN221074693U (en) | Smog smoke discharging control structure for subway fan | |
| CN219320257U (en) | VOCs detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |