CN220328175U - Hydrogen tail gas recovery device of annealing furnace - Google Patents
Hydrogen tail gas recovery device of annealing furnace Download PDFInfo
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- CN220328175U CN220328175U CN202321085243.0U CN202321085243U CN220328175U CN 220328175 U CN220328175 U CN 220328175U CN 202321085243 U CN202321085243 U CN 202321085243U CN 220328175 U CN220328175 U CN 220328175U
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- annealing furnace
- pipeline
- hydrogen
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- 239000007789 gas Substances 0.000 title claims abstract description 147
- 239000001257 hydrogen Substances 0.000 title claims abstract description 53
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 53
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000000137 annealing Methods 0.000 title claims abstract description 44
- 238000011084 recovery Methods 0.000 title claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 238000010992 reflux Methods 0.000 claims abstract description 10
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 22
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- 239000003054 catalyst Substances 0.000 claims description 13
- 229910052763 palladium Inorganic materials 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000746 purification Methods 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004064 recycling Methods 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 229910001868 water Inorganic materials 0.000 description 14
- 230000009471 action Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005371 permeation separation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000010960 cold rolled steel Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a hydrogen tail gas recovery device of an annealing furnace, which comprises a three-way automatic regulating valve, wherein the three-way automatic regulating valve is arranged at the upper end of the annealing furnace body, a Roots blower is arranged at one side of the annealing furnace body, and a first buffer tank is arranged at one side of the Roots blower; the compressor is arranged on one side of the first buffer tank, a fine filter is arranged on one side of the compressor, a deoxidizer is arranged on one side of the fine filter, a purification dehydrator is arranged on one side of the deoxidizer, and a cooler is arranged on one side of the purification dehydrator; the reflux pipeline is arranged between the first buffer tank and the hydrogen main pipe, the tail gas recovery device collects the tail gas and purifies the tail gas, the quality of the recovered gas can be detected, the qualified gas enters the unit for recycling through the hydrogen supply pipeline, the resource recycling is achieved, unqualified gas flows back to the collecting mechanism to be purified and purified again, and the effect of the tail gas recovery device is indirectly improved.
Description
Technical Field
The utility model relates to the technical field of tail gas recovery, in particular to a hydrogen tail gas recovery device of an annealing furnace.
Background
The annealing furnace is a metal heat treatment process in which metal parts are placed in different annealing furnaces, slowly heated to a certain temperature, kept for a period of time and then cooled at a proper speed, and aims to soften materials or workpieces subjected to casting, forging, welding or cutting processing, reduce hardness, improve plasticity and toughness, homogenize chemical components, remove residual stress or obtain expected physical properties. When the annealing furnace is used, the protective gas needs to be injected, after the protective gas of the annealing furnace is used, the purity of the protective gas is poor, and the protective gas contains impurities such as dust, water, oxygen, ammonia and the like, and cannot be used as the protective gas again, so that the waste of resources is caused, the waste of resources can be reduced by the tail gas recovery device, and the protection utilization efficiency is improved.
According to the components and impurities contained in the tail gas for heat treatment of the cold-rolled steel plate and the index requirements of nitrogen-hydrogen gas for heat treatment of the cold-rolled steel plate, the utility model adopts the technical routes of tail gas pretreatment, high-pressure fan pressurization, catalytic deoxidation, water cooling, terminal purification, front-end pipeline pressure control and explosion-proof measures. The method is particularly suitable for recycling and purifying the nitrogen-hydrogen mixed tail gas for heat treatment of the cold-rolled steel sheet, and has very good economic benefit and environmental protection benefit.
The mode that current tail gas recovery unit combines together tail gas collection mechanism and tail gas purification mechanism carries out tail gas recovery, and the gaseous quality after retrieving can not guarantee to be qualified, gets into unit inner loop through the hydrogen supply pipeline with unqualified gas and uses the reduction performance, can influence annealing stove treatment effect, reduces tail gas recovery efficiency, can not satisfy the user demand.
Disclosure of Invention
The utility model aims to provide a hydrogen tail gas recovery device of an annealing furnace, which aims to solve the problems that in the prior art, the existing tail gas recovery device is used for recovering tail gas in a mode of combining a tail gas collecting mechanism and a tail gas purifying mechanism, the quality of recovered gas cannot be guaranteed to be qualified, unqualified gas enters a unit through a hydrogen supply pipeline for recycling, the usability is reduced, the treatment effect of the annealing furnace is affected, the tail gas recovery efficiency is reduced, and the use requirement cannot be met.
In order to achieve the above purpose, the present utility model provides the following technical solutions: annealing stove hydrogen tail gas recovery unit includes annealing furnace body and gas-supply pipeline, still includes:
the three-way automatic regulating valve is arranged at the upper end of the annealing furnace body, and is connected with the annealing furnace body into a whole, one side of the annealing furnace body is provided with a Roots blower, and one side of the Roots blower is provided with a first buffer tank;
the device comprises a first buffer tank, a compressor, a three-way automatic regulating valve, a Roots blower, a first buffer tank, a compressor, a refined filter, a deoxidizer, a purification dehydrator, a cooler and a second buffer tank, wherein the compressor is arranged on one side of the first buffer tank;
the first electromagnetic valve is arranged on the gas transmission pipeline between the Roots blower and the first buffer tank and is connected with the gas transmission pipeline into a whole;
the reflux pipeline is arranged between the first buffer tank and the hydrogen main pipe, two ends of the reflux pipeline are connected with the first buffer tank and the hydrogen main pipe into a whole respectively, a third electromagnetic valve is arranged on the reflux pipeline and connected with the reflux pipeline into a whole, a fourth electromagnetic valve is arranged on the hydrogen main pipe, and the fourth electromagnetic valve is connected with the hydrogen main pipe into a whole.
Preferably, the hydrogen main pipe is provided with a gas tester, the gas tester and the hydrogen main pipe are connected into a whole, and the gas tester is arranged on one side of the backflow pipeline.
Preferably, the annealing furnace body, the first buffer tank and the second buffer tank are all provided with air pressure sensors, and the air pressure sensors are connected with the annealing furnace body, the first buffer tank and the second buffer tank into a whole.
Preferably, the inside of deoxidizer is provided with palladium catalyst subassembly, and palladium catalyst subassembly and deoxidizer are connected as an organic wholely, be provided with air inlet and gas outlet on the deoxidizer, and air inlet and gas outlet set up in the top and the below of palladium catalyst subassembly, the inboard of air inlet and gas outlet all is provided with temperature sensor, and temperature sensor and deoxidizer fixed connection, the bottom of deoxidizer is provided with electric heater, and electric heater and deoxidizer fixed connection.
Preferably, a trace oxygen on-line detector is arranged on one side of the first electromagnetic valve, and the trace oxygen on-line detector is connected with the gas pipeline into a whole.
Preferably, a Changming torch is arranged above the three-way automatic regulating valve, and the Changming torch and the three-way automatic regulating valve are connected into a whole.
Preferably, a vent pipeline is arranged between the first electromagnetic valve and the first buffer tank, the vent pipeline and the gas pipeline are connected into a whole, a second electromagnetic valve is arranged on the vent pipeline, and the second electromagnetic valve and the vent pipeline are connected into a whole.
Preferably, the fine filter adopts a fine filtration process, the fine filter adopts a mode of combining coagulation separation and permeation separation, the purification dehydrator is provided with a pressure swing adsorption device, the pressure swing adsorption device consists of six adsorption towers, and the six adsorption towers work circularly.
Compared with the prior art, the utility model has the beneficial effects that:
1. the device of the utility model extracts and injects the tail gas generated in the annealing furnace into the first buffer tank through the arrangement of the Roots blower, the first buffer tank and the air pressure sensor, the air pressure sensor detects the furnace pressure and the tank pressure, and the Roots blower can be automatically regulated in a linkage way to realize the collection of the hydrogen tail gas of the annealing furnace;
2. the device disclosed by the utility model is characterized in that through the arrangement of a compressor, a fine filter, a deoxidizer, a purification dehydrator, a cooler and a trace oxygen on-line detector, the pressure of tail gas collected in a first buffer tank is increased to 0.65MPa by the compressor, the tail gas is fed into the fine filter, the fine filter adopts a mode of combining condensation separation and permeation separation to remove oil and dust in the tail gas, the tail gas injected into the deoxidizer reacts with hydrogen to generate water under the action of a palladium catalyst, the oxygen is removed, the purification dehydrator diffuses water in gas into the atmosphere through the pressure, the temperature and the cooperation of different fillers, the mixed gas is separated by utilizing an adsorbent according to different gas adsorptivity, the cooler cools the recovered hydrogen temperature to obtain high-purity hydrogen, and the trace oxygen on-line detector detects the oxygen content concentration of the collected tail gas, so that the oxygen in the tail gas is convenient to remove the oxygen in the tail gas later step and the purity of the recovered hydrogen can be improved;
3. the device provided by the utility model has the advantages that through the arrangement of the gas tester, the return pipeline and the third electromagnetic valve, the gas tester detects the quality of the recovered gas, the gas with unqualified recovery can be returned to the first buffer tank by means of the return pipeline and the third electromagnetic valve, the tail gas recovery treatment is performed again, the resource waste is reduced, and the tail gas recovery effect is improved;
4. the device of the utility model is provided with the three-way automatic regulating valve, the pilot torch, the emptying pipeline and the second electromagnetic valve, the three-way automatic regulating valve can control the tail gas flowing direction of the annealing furnace, the non-collected tail gas can be directly combusted by means of the pilot torch, and the tail gas collected in the first buffer tank can be discharged by means of the emptying pipeline and the second electromagnetic valve, so that the pipeline can be prevented from being in gas communication;
5. the device provided by the utility model has the advantages that through the arrangement of the temperature sensor and the electric heater, the temperature sensor can detect the inlet air temperature and the outlet air temperature of the deoxidizer, the thorough reaction can be ensured, the electric heater heats the deoxidizer, the heat is utilized to heat water into steam, and then the steam is taken out along with tail gas, so that free water generated by the oxyhydrogen reaction can be removed.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged view of a portion of area A of FIG. 1 in accordance with the present utility model;
FIG. 3 is an enlarged view of a portion of region B of FIG. 1 in accordance with the present utility model;
FIG. 4 is a schematic diagram of a deoxidizer according to the present utility model.
In the figure: 1. annealing furnace body; 2. a three-way automatic regulating valve; 3. roots blower; 4. a gas line; 5. a Changming torch; 6. an air pressure sensor; 7. a first buffer tank; 8. a compressor; 9. fine filter; 10. a deoxidizer; 11. purifying the dehydrator; 12. a second buffer tank; 13. a hydrogen main pipe; 14. a return line; 15. venting the pipeline; 16. a trace oxygen on-line detector; 17. a first electromagnetic valve; 18. a second electromagnetic valve; 19. a third electromagnetic valve; 20. a fourth electromagnetic valve; 21. a gas tester; 22. an air inlet; 23. an air outlet; 24. a palladium catalyst component; 25. an electric heater; 26. a cooler; 27. a temperature sensor.
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.
Referring to fig. 1-4, an embodiment of the present utility model is provided: the hydrogen tail gas recovery device of the annealing furnace comprises an annealing furnace body 1 and a gas pipeline 4, and further comprises:
the three-way automatic regulating valve 2 is arranged at the upper end of the annealing furnace body 1, the three-way automatic regulating valve 2 is connected with the annealing furnace body 1 into a whole, a Roots blower 3 is arranged on one side of the annealing furnace body 1, and a first buffer tank 7 is arranged on one side of the Roots blower 3;
the compressor 8 is arranged on one side of the first buffer tank 7, the fine filter 9 is arranged on one side of the compressor 8, the deoxidizer 10 is arranged on one side of the fine filter 9, the purification dehydrator 11 is arranged on one side of the deoxidizer 10, the cooler 26 is arranged on one side of the purification dehydrator 11, the second buffer tank 12 is arranged on one side of the cooler 26, the hydrogen main pipe 13 is arranged at one end of the second buffer tank 12, the hydrogen main pipe 13 and the second buffer tank 12 are connected into a whole, and the three-way automatic regulating valve 2, the Roots blower 3, the first buffer tank 7, the compressor 8, the fine filter 9, the deoxidizer 10, the purification dehydrator 11, the cooler 26 and the second buffer tank 12 are connected through the gas pipeline 4;
a first electromagnetic valve 17 which is arranged on the gas pipeline 4 between the Roots blower 3 and the first buffer tank 7, and the first electromagnetic valve 17 is connected with the gas pipeline 4 into a whole;
the return pipe 14 is arranged between the first buffer tank 7 and the hydrogen main pipe 13, two ends of the return pipe 14 are respectively connected with the first buffer tank 7 and the hydrogen main pipe 13 into a whole, a third electromagnetic valve 19 is arranged on the return pipe 14, the third electromagnetic valve 19 is connected with the return pipe 14 into a whole, a fourth electromagnetic valve 20 is arranged on the hydrogen main pipe 13, and the fourth electromagnetic valve 20 is connected with the hydrogen main pipe 13 into a whole.
When in use, the utility model is characterized in that: opening a three-way automatic regulating valve 2 and opening a Roots blower 3, and pumping and injecting the tail gas in the furnace into a first buffer tank 7 when the exhaust pressure of the Roots blower 3 is increased to 16Kpa, so as to realize tail gas collection; starting a compressor 8 to carry out secondary pressurization, raising the pressure to 0.65MPa, sending the tail gas collected in a first buffer tank 7 into a fine filter 9 under the action of the compressor 8, filtering oil and dust in the tail gas by the fine filter 9, sending the filtered tail gas into a deoxidizer 10, enabling the tail gas in the deoxidizer 10 to react with hydrogen molecules under the action of a palladium catalyst to generate water, removing oxygen, sending the tail gas after removing oxygen into a purification dehydrator 11, diffusing water in the gas into the atmosphere by the purification dehydrator 11 through pressure, temperature and matching with different fillers, separating nitrogen in the tail gas by adopting a pressure swing adsorption process, realizing purification and purification of the tail gas, cooling the gas to normal temperature, sending the gas into a second buffer tank 12 for collection, opening a fourth electromagnetic valve 20, sending qualified gas into a hydrogen supply pipeline through a hydrogen main pipe 13 for internal circulation use, achieving the purpose of recycling resources, opening a third electromagnetic valve 19, sending unqualified gas into the first buffer tank 7 through a reflux pipeline 14 for purification again, reducing resource waste, and indirectly improving the recovery effect of the tail gas.
Referring to fig. 1 and 3, a gas tester 21 is disposed on the hydrogen main pipe 13, and the gas tester 21 is connected with the hydrogen main pipe 13 into a whole, the gas tester 21 is disposed on one side of the return pipe 14, and the quality of the recovered gas is detected by the gas tester 21 to determine whether the recovered gas is qualified.
Referring to fig. 1, the annealing furnace body 1, the first buffer tank 7 and the second buffer tank 12 are provided with air pressure sensors 6, the air pressure sensors 6 are connected with the annealing furnace body 1, the first buffer tank 7 and the second buffer tank 12 into a whole, furnace pressure and tank pressure are detected through the air pressure sensors 6, and the Roots blower 3 and the electromagnetic valve are conveniently regulated in a linkage manner according to the detected furnace pressure and tank pressure, so that different use requirements are met.
Referring to fig. 1 and 4, a palladium catalyst assembly 24 is disposed in the deoxidizer 10, the palladium catalyst assembly 24 is integrally connected with the deoxidizer 10, an air inlet 22 and an air outlet 23 are disposed on the deoxidizer 10, the air inlet 22 and the air outlet 23 are disposed above and below the palladium catalyst assembly 24, temperature sensors 27 are disposed on inner sides of the air inlet 22 and the air outlet 23, the temperature sensors 27 are fixedly connected with the deoxidizer 10, an electric heater 25 is disposed at the bottom of the deoxidizer 10, the electric heater 25 is fixedly connected with the deoxidizer 10, the temperature of the air at the air inlet 22 and the air outlet 23 of the deoxidizer 10 is detected by the temperature sensors 27, the inlet temperature is controlled to be 110 ℃, the outlet temperature is controlled to be 160 ℃, the electric heater 25 heats the deoxidizer 10, water is heated to form vapor, and then free water generated by oxyhydrogen reaction is removed along with tail gas.
Referring to fig. 1 and 2, a trace oxygen on-line detector 16 is disposed at one side of the first solenoid valve 17, and the trace oxygen on-line detector 16 is connected with the gas transmission pipeline 4 into a whole, and the trace oxygen on-line detector 16 measures the oxygen content in the collected tail gas, so as to facilitate the subsequent deoxidization treatment, indirectly improve the oxyhydrogen reaction effect, and achieve better purifying effect.
Referring to fig. 1, a pilot torch 5 is disposed above the three-way automatic regulating valve 2, and the pilot torch 5 is connected with the three-way automatic regulating valve 2 into a whole, so that the flow direction of tail gas in the furnace can be controlled by the three-way automatic regulating valve 2, and the unretracted tail gas can be directly subjected to evacuation combustion treatment by means of the pilot torch 5.
Referring to fig. 1 and 2, an exhaust pipeline 15 is disposed between the first electromagnetic valve 17 and the first buffer tank 7, the exhaust pipeline 15 is connected with the gas pipeline 4 as a whole, a second electromagnetic valve 18 is disposed on the exhaust pipeline 15, the second electromagnetic valve 18 is connected with the exhaust pipeline 15 as a whole, and exhaust gas collected in the first buffer tank 7 can be discharged through the second electromagnetic valve 18 and the exhaust pipeline 15 when exhaust gas collection is stopped, so as to avoid pipeline cross gas.
Referring to fig. 1, the fine filter 9 adopts a fine filtration process, the fine filter 9 adopts a mode of combining condensation separation and permeation separation, the purification dehydrator 11 is provided with a pressure swing adsorption device, the pressure swing adsorption device is composed of six adsorption towers, the six adsorption towers work circularly, the tail gas is better and more thoroughly filtered through the combination of the condensation separation and the permeation separation, the tail gas filtering effect is improved, the adsorption towers process the tail gas sequentially through adsorption, pressure equalizing, sequential release and pressurizing steps, the adsorption towers are in an adsorption state at any moment, and the six adsorption towers work circularly, so that continuous product gas can be obtained.
Working principle: opening a three-way automatic regulating valve 2 and opening a Roots blower 3, and pumping and injecting the tail gas in the furnace into a first buffer tank 7 when the exhaust pressure of the Roots blower 3 is increased to 16Kpa, so as to realize tail gas collection; starting a compressor 8 to carry out secondary pressurization, increasing the pressure to 0.65MPa, sending the tail gas collected in the first buffer tank 7 into a fine filter 9 under the action of the compressor 8, and measuring the oxygen content in the collected tail gas by a trace oxygen online detector 16; the fine filter 9 filters oil content and dust in the tail gas, the filtered tail gas is sent into the deoxidizer 10, the tail gas entering the deoxidizer 10 reacts with hydrogen molecules under the action of palladium catalyst to generate water, oxygen is removed, the inlet temperature is controlled at 110 ℃, the outlet temperature interlocking value is 160 ℃, the electric heater 25 heats the deoxidizer 10, the water is heated to steam, and then the steam is taken out along with the tail gas, so that free water generated by oxyhydrogen reaction is removed; the tail gas after oxygen removal enters a purification dehydrator 11, the purification dehydrator 11 diffuses water in the gas into the atmosphere through pressure, temperature and matching with different fillers, then nitrogen in the tail gas is separated by adopting a pressure swing adsorption process, purification and purification of the tail gas are realized, the temperature of the gas is reduced to normal temperature by a cooler 26 and then the gas is sent into a second buffer tank 12 for collection, a gas tester 21 detects the quality of the recovered gas, whether the recovered gas is qualified or not is judged, a fourth electromagnetic valve 20 is opened, and the qualified gas is sent into a hydrogen supply pipeline through a hydrogen main pipe 13 to enter a unit for recycling, so that the aim of recycling resources is achieved; and the third electromagnetic valve 19 is opened to send unqualified gas into the first buffer tank 7 through the return pipeline 14 for purification again, so that the resource waste is reduced, and the tail gas recovery effect is indirectly improved.
What is not described in detail in this specification is prior art known to those skilled in the art.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Annealing stove hydrogen tail gas recovery unit, including annealing furnace body (1) and gas-supply pipeline (4), its characterized in that still includes:
the three-way automatic regulating valve (2) is arranged at the upper end of the annealing furnace body (1), the three-way automatic regulating valve (2) is connected with the annealing furnace body (1) into a whole, a Roots blower (3) is arranged at one side of the annealing furnace body (1), and a first buffer tank (7) is arranged at one side of the Roots blower (3);
the device comprises a compressor (8), wherein the compressor is arranged on one side of a first buffer tank (7), a fine filter (9) is arranged on one side of the compressor (8), a deoxidizer (10) is arranged on one side of the fine filter (9), a purifying dehydrator (11) is arranged on one side of the deoxidizer (10), a cooler (26) is arranged on one side of the purifying dehydrator (11), a second buffer tank (12) is arranged on one side of the cooler (26), a hydrogen main pipe (13) is arranged at one end of the second buffer tank (12), the hydrogen main pipe (13) is connected with the second buffer tank (12) into a whole, and the three-way automatic regulating valve (2), the Roots blower (3), the first buffer tank (7), the compressor (8), the fine filter (9), the deoxidizer (10), the purifying dehydrator (11), the cooler (26) and the second buffer tank (12) are connected through a gas pipeline (4);
the first electromagnetic valve (17) is arranged on the gas pipeline (4) between the Roots blower (3) and the first buffer tank (7), and the first electromagnetic valve (17) is connected with the gas pipeline (4) into a whole;
the reflux pipeline (14) is arranged between the first buffer tank (7) and the hydrogen main pipe (13), two ends of the reflux pipeline (14) are respectively connected with the first buffer tank (7) and the hydrogen main pipe (13) into a whole, a third electromagnetic valve (19) is arranged on the reflux pipeline (14), the third electromagnetic valve (19) is connected with the reflux pipeline (14) into a whole, a fourth electromagnetic valve (20) is arranged on the hydrogen main pipe (13), and the fourth electromagnetic valve (20) is connected with the hydrogen main pipe (13) into a whole.
2. The annealing furnace hydrogen off-gas recovery apparatus according to claim 1, wherein: the hydrogen main pipe (13) is provided with a gas tester (21), the gas tester (21) and the hydrogen main pipe (13) are connected into a whole, and the gas tester (21) is arranged on one side of the backflow pipeline (14).
3. The annealing furnace hydrogen off-gas recovery apparatus according to claim 1, wherein: the annealing furnace body (1), the first buffer tank (7) and the second buffer tank (12) are respectively provided with an air pressure sensor (6), and the air pressure sensors (6) are connected with the annealing furnace body (1), the first buffer tank (7) and the second buffer tank (12) into a whole.
4. The annealing furnace hydrogen off-gas recovery apparatus according to claim 1, wherein: the inside of deoxidizer (10) is provided with palladium catalyst subassembly (24), and palladium catalyst subassembly (24) are connected as an organic wholely with deoxidizer (10), be provided with air inlet (22) and gas outlet (23) on deoxidizer (10), and air inlet (22) and gas outlet (23) set up in the top and the below of palladium catalyst subassembly (24), the inboard of air inlet (22) and gas outlet (23) all is provided with temperature sensor (27), and temperature sensor (27) and deoxidizer (10) fixed connection, the bottom of deoxidizer (10) is provided with electric heater (25), and electric heater (25) and deoxidizer (10) fixed connection.
5. The annealing furnace hydrogen off-gas recovery apparatus according to claim 1, wherein: a trace oxygen on-line detector (16) is arranged on one side of the first electromagnetic valve (17), and the trace oxygen on-line detector (16) is connected with the gas pipeline (4) into a whole.
6. The annealing furnace hydrogen off-gas recovery apparatus according to claim 1, wherein: the upper part of the three-way automatic regulating valve (2) is provided with a Changming torch (5), and the Changming torch (5) is connected with the three-way automatic regulating valve (2) into a whole.
7. The annealing furnace hydrogen off-gas recovery apparatus according to claim 1, wherein: the novel pneumatic air conditioner is characterized in that an air vent pipeline (15) is arranged between the first electromagnetic valve (17) and the first buffer tank (7), the air vent pipeline (15) is connected with the air transmission pipeline (4) into a whole, a second electromagnetic valve (18) is arranged on the air vent pipeline (15), and the second electromagnetic valve (18) is connected with the air vent pipeline (15) into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321085243.0U CN220328175U (en) | 2023-05-08 | 2023-05-08 | Hydrogen tail gas recovery device of annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321085243.0U CN220328175U (en) | 2023-05-08 | 2023-05-08 | Hydrogen tail gas recovery device of annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220328175U true CN220328175U (en) | 2024-01-12 |
Family
ID=89446423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321085243.0U Active CN220328175U (en) | 2023-05-08 | 2023-05-08 | Hydrogen tail gas recovery device of annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220328175U (en) |
-
2023
- 2023-05-08 CN CN202321085243.0U patent/CN220328175U/en active Active
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