CN215352882U - Denitration pyrolysis oven convenient to monitoring temperature field and crystallization - Google Patents
Denitration pyrolysis oven convenient to monitoring temperature field and crystallization Download PDFInfo
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- CN215352882U CN215352882U CN202121019705.XU CN202121019705U CN215352882U CN 215352882 U CN215352882 U CN 215352882U CN 202121019705 U CN202121019705 U CN 202121019705U CN 215352882 U CN215352882 U CN 215352882U
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- furnace body
- fixedly connected
- crystallization
- air guide
- guide pipe
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 22
- 238000002425 crystallisation Methods 0.000 title claims abstract description 20
- 230000008025 crystallization Effects 0.000 title claims abstract description 20
- 238000012544 monitoring process Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 abstract description 17
- 239000013078 crystal Substances 0.000 abstract description 8
- 239000012895 dilution Substances 0.000 abstract description 5
- 238000010790 dilution Methods 0.000 abstract description 5
- 239000000243 solution Substances 0.000 abstract description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
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Abstract
The utility model discloses a denitration pyrolysis furnace convenient for monitoring a temperature field and crystallization, which comprises a furnace body and supporting legs, wherein a group of supporting legs are fixedly connected to four corners of the bottom end of the furnace body respectively, a heating mechanism is arranged at the top end of the furnace body, and a delivery pipe is fixedly connected to the bottom end of the furnace body. This denitration pyrolysis oven convenient to monitor temperature field and crystallization is through being provided with the thermoscope, before carrying out the reaction, will annotate the inside that the liquid pipe inserted the furnace body and fix, it is fixed with the bracing piece to support the cover again, the bracing piece supports annotating the liquid pipe, and when the upper portion took place the crystallization in the furnace body, because the crystal temperature is lower, and the crystal has blockked the contact of the dilution wind that the furnace body top flowed in and furnace body wall, must make furnace body here temperature decline, can discover this anomaly through the thermoscope, thereby make annotate the liquid pipe through the rotary valve and close to carry out suppressing pressure disturbance in order to eliminate the crystallization to the empty gas mixture of ammonia, the solution is unable convenient control reaction temperature, thereby the problem of control feeding.
Description
Technical Field
The utility model relates to the technical field of chemical reaction devices, in particular to a denitration pyrolysis furnace convenient for monitoring a temperature field and crystallization.
Background
At present, the state requires that thermal power enterprises must achieve the ultra-low emission of environmental protection indexes, wherein the concentration of nitrogen oxide in a total discharge port is not higher than 50mg/Nm3The denitration system that most thermal power generating unit adopted is selective catalytic reduction technique, and the reactant adopts urea solution usually, but current denitration pyrolysis oven still has the defect such as serious crystallization when carrying out the during operation, needs a higher denitration pyrolysis oven of practicality now.
In the process of implementing the utility model, the inventor finds that at least the following problems in the prior art are not solved:
(1) the traditional denitration pyrolysis furnace cannot conveniently monitor the reaction temperature so as to control feeding;
(2) the traditional denitration pyrolysis furnace cannot conveniently and quickly heat dilution air;
(3) the traditional denitration pyrolysis furnace has insufficient sealing property inside during reaction, so that reaction gas can overflow.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a denitration pyrolysis furnace convenient for monitoring a temperature field and crystallization, and aims to solve the problem that the reaction temperature cannot be conveniently monitored so as to control feeding in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
a denitration pyrolysis furnace convenient for monitoring a temperature field and crystallization comprises a furnace body and supporting legs, wherein a group of supporting legs are fixedly connected to four corners of the bottom end of the furnace body respectively; the control mechanism comprises a temperature measuring instrument, the temperature measuring instrument is fixedly connected to one side of the furnace body, the temperature measuring instrument penetrates through one side of the furnace body and extends into the furnace body, a liquid injection pipe is fixedly connected to the top end of one side of the furnace body, the liquid injection pipe penetrates through one side of the furnace body and extends into the furnace body, a valve is arranged inside the liquid injection pipe, a supporting sleeve is fixedly connected to the outside of the liquid injection pipe, a supporting rod is fixedly connected to the bottom end of the supporting sleeve, and the supporting rod is fixedly connected with the furnace body.
Preferably, the central line of the support sleeve and the central line of the liquid injection pipe are on the same vertical plane, and the height of the support rod is smaller than that of the furnace body.
Preferably, the heating mechanism comprises an air guide pipe, a through groove, an electric heater, a mounting plate and a fan, the air guide pipe is fixedly connected to the top end of the furnace body, the air guide pipe penetrates through the top end of the furnace body and is communicated with the inside of the furnace body, the through groove is embedded in the top end of the air guide pipe, the mounting plate is fixedly connected to the top end of the air guide pipe, the electric heater penetrates through the mounting plate and extends to the inside of the air guide pipe, and the fan is fixedly connected to one side of the air guide pipe.
Preferably, the center line of the through groove and the center line of the air guide pipe are on the same vertical plane, and the length of the mounting plate is greater than the length inside the through groove.
Preferably, seal structure comprises first location axle, clamp plate, apron, sealing washer, second location axle and articulated block, second location axle fixed connection is you on the outside top of contact tube, the outside swing joint of second location axle has articulated block, the inside swing joint of articulated block has the apron, the outside fixedly connected with sealing washer of apron one side, sealing washer and contact tube swing joint, first location axle fixed connection is in one side of contact tube bottom, the outside swing joint of first location axle has the clamp plate, clamp plate and apron swing joint.
Preferably, the cover plate has a height greater than the height of the interior of the outlet pipe, and the center line of the hinge block is on the same vertical plane as the center line of the cover plate.
Compared with the prior art, the utility model has the beneficial effects that:
in the above scheme, denitration pyrolysis oven convenient to monitor temperature field and crystallization has not only realized detectable temperature in order to control the feeding, has realized the rapid heating and has diluted the wind, has realized improving the inside leakproofness during the reaction moreover.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic side view of the cover plate of the present invention;
FIG. 3 is an enlarged partial sectional view of FIG. 1 at A;
fig. 4 is a schematic top view of the mounting plate of the present invention.
In the figure:
1. a furnace body; 2. a heating mechanism; 201. an air guide pipe; 202. a through groove; 203. an electric heater; 204. mounting a plate; 205. a fan; 3. a temperature measuring instrument; 4. a support leg; 5. a delivery pipe; 6. a sealing structure; 601. a first positioning shaft; 602. pressing a plate; 603. a cover plate; 604. a seal ring; 605. a second positioning shaft; 606. a hinged block; 7. a support bar; 8. a liquid injection pipe; 9. a valve; 10. and a support sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: referring to fig. 1-4, an embodiment of the present invention provides a denitration pyrolysis furnace convenient for monitoring a temperature field and crystallization, including a furnace body 1 and legs 4, wherein four corners of the bottom end of the furnace body 1 are respectively and fixedly connected with a set of legs 4, the top end of the furnace body 1 is provided with a heating mechanism 2, the bottom end of the furnace body 1 is fixedly connected with a delivery pipe 5, the delivery pipe 5 is communicated with the inside of the furnace body 1, one side of the delivery pipe 5 is provided with a sealing structure 6, and one side of the furnace body 1 is provided with a control mechanism; denitration pyrolysis oven convenient to monitor temperature field and crystallization still includes control mechanism, control mechanism includes thermoscope 3, thermoscope 3 fixed connection is in one side of furnace body 1, thermoscope 3 runs through one side of furnace body 1 and extends to the inside of furnace body 1, the top fixedly connected with of furnace body 1 one side annotates liquid pipe 8, annotate liquid pipe 8 and run through one side of furnace body 1 and extend to the inside of furnace body 1, the inside of annotating liquid pipe 8 is provided with valve 9, annotate the outside fixedly connected with of liquid pipe 8 and support cover 10, support the bottom fixedly connected with bracing piece 7 of cover 10, bracing piece 7 and furnace body 1 fixed connection.
The central line of the supporting sleeve 10 and the central line of the liquid injection pipe 8 are on the same vertical plane, and the height of the supporting rod 7 is less than that of the furnace body 1.
Specifically, as shown in fig. 1, before the reaction, the liquid injection pipe 8 is inserted into the furnace body 1 and fixed, the support sleeve 10 is fixed with the support rod 7, the support rod 7 supports the liquid injection pipe 8, and when the middle upper part of the furnace body 1 is crystallized, because the temperature of the crystal is low, and the crystal blocks the contact between the dilution air flowing into the top end of the furnace body 1 and the wall surface of the furnace body 1, the temperature of the furnace body 1 is inevitably reduced, and the abnormality can be found through the temperature measuring instrument 3, so that the liquid injection pipe 8 is closed through rotating the valve 9 to suppress the pressure disturbance of the ammonia-air mixed gas to eliminate the crystallization.
Example 2: the heating mechanism 2 comprises an air guide pipe 201, a through groove 202, an electric heater 203, a mounting plate 204 and a fan 205, the air guide pipe 201 is fixedly connected to the top end of the furnace body 1, the air guide pipe 201 penetrates through the top end of the furnace body 1 and is communicated with the inside of the furnace body 1, the through groove 202 is embedded in the top end of the air guide pipe 201, the mounting plate 204 is fixedly connected to the top end of the air guide pipe 201, the electric heater 203 is fixedly connected to the top end of the mounting plate 204, the electric heater 203 penetrates through the mounting plate 204 and extends to the inside of the air guide pipe 201, and the fan 205 is fixedly connected to one side of the air guide pipe 201.
The center line of the through groove 202 and the center line of the air guide duct 201 are on the same vertical plane, and the length of the mounting plate 204 is greater than the length inside the through groove 202.
Specifically, as shown in fig. 1 and 4, before the reaction, the fan 205 is started to generate wind, the electric heater 203 is started again, the wind is heated to a certain temperature by the electric heater 203, and then enters the furnace body 1 to be mixed with the urea solution injected from the liquid injection pipe 8, the temperature of the hot wind can be controlled by controlling the electric heater 203, and the dilution wind can be heated conveniently and rapidly to perform the reaction.
Example 3: seal structure 6 is by first location axle 601, clamp plate 602, apron 603, sealing washer 604, second location axle 605 and articulated piece 606 are constituteed, second location axle 605 fixed connection is your on the outside top of delivery tube 5, the outside swing joint of second location axle 605 has articulated piece 606, the inside swing joint of articulated piece 606 has apron 603, the outside fixedly connected with sealing washer 604 of apron 603 one side, sealing washer 604 and delivery tube 5 swing joint, first location axle 601 fixed connection is in one side of delivery tube 5 bottom, the outside swing joint of first location axle 601 has clamp plate 602, clamp plate 602 and apron 603 swing joint.
The cover plate 603 has a height greater than the height of the interior of the delivery tube 5, and the center line of the hinge block 606 is on the same vertical plane as the center line of the cover plate 603.
Specifically, as shown in fig. 1, fig. 2 and fig. 3, before the reaction is performed inside the furnace body 1, the hinge block 606 is slid and the cover plate 603 is driven to move, until the sealing ring 604 outside one side of the cover plate 603 is inserted into the interior of the delivery tube 5 and attached to the inner sidewall of the delivery tube 5, the pressing plate 602 is rotated to make the pressing plate 602 closely attached to one side of the cover plate 603, the cover plate 603 is positioned, so that one side of the delivery tube 5 is completely closed, and then the reaction is performed, after the reaction is completed, the pressing plate 602 is reversed to be separated from one side of the cover plate 603, the hinge block 606 is pulled, so that the sealing ring 604 is separated from the interior of the delivery tube 5, and then the cover plate 603 is reversed to open the interior of the delivery tube 5 to discharge the fallen crystals for continuous reaction.
The denitration pyrolysis furnace provided by the utility model has the following use process:
firstly, before reaction, the injection pipe 8 is inserted into the furnace body 1 and fixed, then the support sleeve 10 is fixed with the support rod 7, the support rod 7 supports the injection pipe 8, then the hinge block 606 is slid and the cover plate 603 is driven to move until the sealing ring 604 outside one side of the cover plate 603 is inserted into the guide pipe 5 and is attached to the inner side wall of the guide pipe 5, the press plate 602 is rotated to make the press plate 602 closely attached to one side of the cover plate 603, the cover plate 603 is positioned, so that one side of the guide pipe 5 is completely closed, the fan 205 is started to generate wind, then the electric heater 203 is started, the wind is heated to a certain temperature by the electric heater 203, then enters the furnace body 1 to be mixed with the urea solution injected from the injection pipe 8, when crystallization occurs at the middle upper part of the furnace body 1, because the temperature of the crystal is low, and the crystal blocks the contact of the dilution wind flowing in from the top end of the furnace body 1 and the wall surface of the furnace body 1, the furnace body 1 can be lowered in temperature at the position, the abnormality can be found through the temperature measuring instrument 3, the liquid injection pipe 8 is closed through rotating the valve 9, the ammonia-air mixed gas is subjected to pressure-holding disturbance to eliminate crystallization, after the reaction is completed, the hinged block 606 is pulled by separating the sealing ring 604 from one side of the cover plate 603 through the reverse pressing plate 602, and after the sealing ring 604 is separated from the inside of the guide pipe 5, the reverse cover plate 603 can enable the inside of the guide pipe 5 to be opened so that the dropped crystal can be discharged to continue the reaction.
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 invention may be embodied in other specific forms without departing from the spirit or essential attributes 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 (6)
1. A denitration pyrolysis furnace convenient for monitoring a temperature field and crystallization comprises a furnace body and supporting legs, and is characterized in that a group of supporting legs are fixedly connected to four corners of the bottom end of the furnace body respectively, a heating mechanism is arranged at the top end of the furnace body, a delivery pipe is fixedly connected to the bottom end of the furnace body and communicated with the interior of the furnace body, a sealing structure is arranged on one side of the delivery pipe, and a control mechanism is arranged on one side of the furnace body;
the control mechanism comprises a temperature measuring instrument, the temperature measuring instrument is fixedly connected to one side of the furnace body, the temperature measuring instrument penetrates through one side of the furnace body and extends into the furnace body, a liquid injection pipe is fixedly connected to the top end of one side of the furnace body, the liquid injection pipe penetrates through one side of the furnace body and extends into the furnace body, a valve is arranged inside the liquid injection pipe, a supporting sleeve is fixedly connected to the outside of the liquid injection pipe, a supporting rod is fixedly connected to the bottom end of the supporting sleeve, and the supporting rod is fixedly connected with the furnace body.
2. The denitration pyrolysis furnace convenient for monitoring a temperature field and crystallization of claim 1, wherein the center line of the support sleeve and the center line of the liquid injection pipe are on the same vertical plane, and the height of the support rod is smaller than that of the furnace body.
3. The denitration pyrolysis furnace convenient for monitoring a temperature field and crystallizing according to claim 1, wherein the heating mechanism comprises an air guide pipe, a through groove, an electric heater, a mounting plate and a fan, the air guide pipe is fixedly connected to the top end of the furnace body, the air guide pipe penetrates through the top end of the furnace body and is communicated with the inside of the furnace body, the through groove is embedded in the top end of the air guide pipe, the mounting plate is fixedly connected to the top end of the air guide pipe, the electric heater is fixedly connected to the top end of the mounting plate, the electric heater penetrates through the mounting plate and extends to the inside of the air guide pipe, and the fan is fixedly connected to one side of the air guide pipe.
4. The denitration pyrolysis furnace convenient for monitoring a temperature field and crystallization of claim 3, wherein the center line of the through groove and the center line of the air guide pipe are on the same vertical plane, and the length of the mounting plate is greater than the length inside the through groove.
5. The denitration pyrolysis furnace convenient to monitor temperature field and crystallization of claim 1, characterized in that, seal structure comprises first location axle, clamp plate, apron, sealing washer, second location axle and articulated block, second location axle fixed connection is you in the outside top of contact tube, the outside swing joint of second location axle has articulated block, the inside swing joint of articulated block has the apron, the outside fixed connection of apron one side has the sealing washer, sealing washer and contact tube swing joint, first location axle fixed connection is in one side of contact tube bottom, the outside swing joint of first location axle has the clamp plate, clamp plate and apron swing joint.
6. The denitration pyrolysis furnace of claim 5, wherein the cover plate has a height larger than the height of the inside of the outlet pipe, and the center line of the hinge block is on the same vertical plane with the center line of the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121019705.XU CN215352882U (en) | 2021-05-13 | 2021-05-13 | Denitration pyrolysis oven convenient to monitoring temperature field and crystallization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121019705.XU CN215352882U (en) | 2021-05-13 | 2021-05-13 | Denitration pyrolysis oven convenient to monitoring temperature field and crystallization |
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| CN215352882U true CN215352882U (en) | 2021-12-31 |
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| CN202121019705.XU Active CN215352882U (en) | 2021-05-13 | 2021-05-13 | Denitration pyrolysis oven convenient to monitoring temperature field and crystallization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115159544A (en) * | 2022-06-07 | 2022-10-11 | 华能太原东山燃机热电有限责任公司 | Prevent urea crystallization's pyrolysis formula denitration device |
-
2021
- 2021-05-13 CN CN202121019705.XU patent/CN215352882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115159544A (en) * | 2022-06-07 | 2022-10-11 | 华能太原东山燃机热电有限责任公司 | Prevent urea crystallization's pyrolysis formula denitration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 232008 Luohe Town, Datong District, Huainan City, Anhui Province Patentee after: Datang Anhui Power Generation Co.,Ltd. Huainan Luohe Power Generation Branch Country or region after: China Address before: 232008 Luohe Power Plant, Luohe Town, Datong District, Huainan City, Anhui Province Patentee before: DATANG HUAINAN LUOHE POWER PLANT Country or region before: China |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240530 Address after: 232000, 100 meters east of Luohe Police Station in Luohe Town, Datong District, Huainan City, Anhui Province Patentee after: Huainan Luohe Power Generation Co.,Ltd. Country or region after: China Address before: 232008 Luohe Town, Datong District, Huainan City, Anhui Province Patentee before: Datang Anhui Power Generation Co.,Ltd. Huainan Luohe Power Generation Branch Country or region before: China |