CN220284146U - Hydrogen-nitrogen protective atmosphere heating device of hot galvanizing annealing furnace - Google Patents
Hydrogen-nitrogen protective atmosphere heating device of hot galvanizing annealing furnace Download PDFInfo
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- CN220284146U CN220284146U CN202321732635.1U CN202321732635U CN220284146U CN 220284146 U CN220284146 U CN 220284146U CN 202321732635 U CN202321732635 U CN 202321732635U CN 220284146 U CN220284146 U CN 220284146U
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- heating
- thermocouple
- tower body
- hydrogen
- protective atmosphere
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 124
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 title claims abstract description 19
- 238000000137 annealing Methods 0.000 title claims abstract description 18
- 238000005246 galvanizing Methods 0.000 title claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 37
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 7
- 239000002737 fuel gas Substances 0.000 description 3
- 238000009841 combustion method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a hydrogen-nitrogen protective atmosphere heating device of a hot galvanizing annealing furnace, which comprises a heating tower body, a heating mechanism and a control system, wherein the heating mechanism and the control system are arranged in the heating tower body, an air inlet is formed in the bottom of one side of the heating tower body, an air outlet is formed in the top of the other side of the heating tower body, a raw material air inlet pipeline is arranged on the air inlet, a raw material air pressure detection transmitter PT is arranged on the raw material air inlet pipeline, a first heating control thermocouple TW1 is arranged in the heating tower body at the air inlet, a second heating monitoring thermocouple TW2 is arranged at the air outlet, and the heating mechanism, the raw material air pressure detection transmitter PT, the first heating control thermocouple TW1 and the second heating monitoring thermocouple TW2 are all controlled in a combined mode through the control system. The utility model can prevent the heating device from being damaged by dry heating and prolong the service life.
Description
Technical Field
The utility model relates to heating equipment in the hot galvanizing industry, in particular to a hydrogen-nitrogen protective atmosphere heating device of a hot galvanizing annealing furnace.
Background
In order to prevent the steel from oxidizing in the annealing furnace, a protective atmosphere is injected into the furnace; the protective atmosphere is normal temperature or gas slightly lower than normal temperature, and a large amount of gas is injected into the furnace to reduce the temperature and increase the consumption of fuel gas; the exhaust gas pipeline and the protective gas pipeline of the traditional annealing furnace are two independent pipelines; the exhaust gas temperature generated by the annealing furnace is as high as several hundred degrees celsius and is not utilized effectively. The injection of the protective atmosphere with relatively low temperature into the furnace can cause the temperature in the furnace to be reduced, so as to maintain the high temperature state in the furnace, more fuel gas can be combusted, and the fuel gas consumption is increased; the traditional heating device thermocouple and heater are not explosion-proof products, if the heating air flow is not available, the heating device can not be known, the service life of the heating device is shortened, and the heater is only provided with one heating control thermocouple, so that the heating control thermocouple is out of control, and the heating device is easy to cause problems.
Disclosure of Invention
The utility model aims to provide a hydrogen-nitrogen protective atmosphere heating device of a hot dip galvanizing annealing furnace, which solves the problem of dry burning damage of a heater.
The technical scheme includes that the heating device for the hydrogen-nitrogen protective atmosphere of the hot galvanizing annealing furnace comprises a heating tower body, a heating mechanism and a control system, wherein the heating mechanism and the control system are arranged in the heating tower body, an air inlet is formed in the bottom of one side of the heating tower body, an air outlet is formed in the top of the other side of the heating tower body, a raw material air inlet pipeline is arranged on the air inlet, a raw material air pressure detection transmitter PT is arranged on the raw material air inlet pipeline, a first heating temperature control thermocouple TW1 is arranged in the heating tower body and located at the air inlet, a second heating monitoring thermocouple TW2 is arranged at the air outlet, and the heating mechanism, the raw material air pressure detection transmitter PT, the first heating temperature control thermocouple TW1 and the second heating monitoring thermocouple TW2 are all controlled in a combined mode through the control system.
Further, the heating tower body is externally coated with a heating heat-insulating layer.
Further, the first heating control thermocouple TW1 and the second heating monitoring thermocouple TW2 are EXDIICT4 hydrogen nitrogen explosion-proof thermocouples.
Further, the heating mechanism adopts an EXDIICT4 hydrogen nitrogen explosion-proof heater.
The hydrogen-nitrogen protective atmosphere heating device for the hot dip galvanizing annealing furnace has the technical effects that: the device is through the joint control of heating mechanism, raw materials atmospheric pressure detects changer PT, first heating accuse temperature thermocouple TW1 and second heating control thermocouple TW2, can break off heating mechanism heating when raw materials gas intake pipe internal pressure is too low, prevent heating device dry combustion method damage, increase life, the at least one heating control thermocouple of during operation of second heating control thermocouple TW2 assurance that increases can normally monitor, reduces the potential safety hazard.
Drawings
FIG. 1 is a schematic structural view of a heating device for a hydrogen-nitrogen protective atmosphere of a hot dip galvanizing annealing furnace.
Wherein: 1. heating the tower body; 2. a heating mechanism; 3. a gas inlet; 4. a gas outlet; 5. a feed gas inlet conduit; 6. a raw material air pressure detection transmitter PT; 7. a first heating control thermocouple TW1; 8. a second heating monitor thermocouple TW2; 9. and heating the heat preservation layer.
Description of the embodiments
The following detailed description of the embodiments of the present utility model is provided with reference to the accompanying drawings, so that the technical scheme of the present utility model is easier to understand and grasp, and the protection scope of the present utility model is defined more clearly.
Aiming at the requirements of heating devices in the hot galvanizing industry, the designer of the utility model innovatively provides a heating device for the hydrogen-nitrogen protective atmosphere of a hot galvanizing annealing furnace, which can prevent the heating device from being damaged by dry heating and prolong the service life.
Referring to fig. 1, from the technical overview, the hydrogen-nitrogen protective atmosphere heating device of the hot galvanizing annealing furnace comprises a heating tower body 1, a heating mechanism 2 and a control system, wherein the heating mechanism 2 and the control system are arranged in the heating tower body 1, a gas inlet 3 is formed in the bottom of one side of the heating tower body 1, a gas outlet 4 is formed in the top of the other side of the heating tower body, a raw material gas inlet pipeline 5 is arranged on the gas inlet 3, a raw material gas pressure detection transmitter PT6 is arranged on the raw material gas inlet pipeline 5, a first heating control thermocouple TW17 is arranged in the heating tower body 1 and located at the gas inlet 3, a second heating monitoring thermocouple TW28 is arranged at the gas outlet 4, and the heating mechanism 2, the raw material gas pressure detection transmitter PT6, the first heating control thermocouple TW17 and the second heating monitoring thermocouple TW28 are controlled in a combined mode through the control system.
The heating tower body 1 is externally coated with a heating heat-insulating layer 9, so that heat loss during heating is prevented, and heating efficiency is improved.
The first heating temperature control thermocouple TW17 and the second heating temperature control thermocouple TW28 are EXDIICT4 hydrogen nitrogen explosion-proof thermocouples, and safety is improved.
The heating mechanism 2 adopts an EXDIICT4 hydrogen nitrogen explosion-proof heater, so that the safety is improved.
Raw gas enters from a raw gas inlet pipeline 5, raw gas pressure is detected by a raw gas pressure detection transmitter PT6 and then enters into a heating tower body 1 from a gas inlet, the heating tower body 1 is monitored by a first heating control thermocouple TW17 and heated by a heating mechanism 2, finally, heated gas is sent to a customer using point from a gas outlet 4 through the monitoring of a second heating monitoring thermocouple TW28, and meanwhile, when the heating mechanism 2, the raw gas pressure detection transmitter PT6, the first heating control thermocouple TW17 and the second heating monitoring thermocouple TW28 are in combined control, the heating mechanism 2 is disconnected from heating due to abnormal information of the raw gas pressure detection transmitter PT6, the first heating control thermocouple TW17 and the second heating monitoring thermocouple TW 28.
In summary, the scheme introduction and the embodiment detailed description of the hydrogen-nitrogen protective atmosphere heating device of the hot dip galvanizing annealing furnace show that the scheme has substantial characteristics and progress: the device is through the joint control of heating mechanism, raw materials atmospheric pressure detects changer PT, first heating accuse temperature thermocouple TW1 and second heating control thermocouple TW2, can break off heating mechanism heating when raw materials gas intake pipe internal pressure is too low, prevent heating device dry combustion method damage, increase life, the at least one heating control thermocouple of during operation of second heating control thermocouple TW2 assurance that increases can normally monitor, reduces the potential safety hazard.
In addition to the above embodiments, other embodiments of the present utility model are possible, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of the present utility model as claimed.
Claims (4)
1. The utility model provides a hot dip galvanizing annealing stove hydrogen nitrogen protective atmosphere heating device, includes the heating tower body, sets up at the inside heating mechanism and the control system of heating tower body, its characterized in that: the heating tower body one side bottom is equipped with the gas entry, and opposite side top is equipped with the gas outlet, be equipped with raw materials gas inlet pipe way on the gas entry, be equipped with raw materials gas pressure detection transmitter PT on the raw materials gas inlet pipe way, be located the gas entry in the heating tower body and go out to be equipped with first heating accuse thermocouple TW1, gas outlet department is equipped with second heating control thermocouple TW2, heating mechanism, raw materials gas pressure detection transmitter PT, first heating accuse thermocouple TW1 and second heating control thermocouple TW2 are all through control system allies oneself with accuse.
2. The hydrogen-nitrogen protective atmosphere heating apparatus of a hot dip galvanizing annealing furnace according to claim 1, wherein: and a heating heat-insulating layer is coated outside the heating tower body.
3. The hydrogen-nitrogen protective atmosphere heating apparatus of a hot dip galvanizing annealing furnace according to claim 1, wherein: the first heating control thermocouple TW1 and the second heating monitoring thermocouple TW2 are EXDIICT4 hydrogen nitrogen explosion-proof thermocouples.
4. The hydrogen-nitrogen protective atmosphere heating apparatus of a hot dip galvanizing annealing furnace according to claim 1, wherein: the heating mechanism adopts an EXDIICT4 hydrogen nitrogen explosion-proof heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321732635.1U CN220284146U (en) | 2023-07-04 | 2023-07-04 | Hydrogen-nitrogen protective atmosphere heating device of hot galvanizing annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321732635.1U CN220284146U (en) | 2023-07-04 | 2023-07-04 | Hydrogen-nitrogen protective atmosphere heating device of hot galvanizing annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220284146U true CN220284146U (en) | 2024-01-02 |
Family
ID=89328653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321732635.1U Active CN220284146U (en) | 2023-07-04 | 2023-07-04 | Hydrogen-nitrogen protective atmosphere heating device of hot galvanizing annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220284146U (en) |
-
2023
- 2023-07-04 CN CN202321732635.1U patent/CN220284146U/en active Active
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