CN203794948U - Built-in reducing protective gas generation device - Google Patents
Built-in reducing protective gas generation device Download PDFInfo
- Publication number
- CN203794948U CN203794948U CN201420151547.7U CN201420151547U CN203794948U CN 203794948 U CN203794948 U CN 203794948U CN 201420151547 U CN201420151547 U CN 201420151547U CN 203794948 U CN203794948 U CN 203794948U
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- China
- Prior art keywords
- mixing
- built
- protective gas
- controller
- steel pipe
- 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.)
- Expired - Lifetime
Links
- 230000001681 protective effect Effects 0.000 title abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 24
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 238000000746 purification Methods 0.000 claims abstract description 8
- 230000006837 decompression Effects 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 37
- 229910000831 Steel Inorganic materials 0.000 abstract description 30
- 239000010959 steel Substances 0.000 abstract description 30
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 20
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 239000003345 natural gas Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003381 stabilizer Substances 0.000 abstract 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 239000003245 coal Substances 0.000 description 8
- 235000009508 confectionery Nutrition 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 239000012298 atmosphere Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 4
- 238000010622 cold drawing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Heat Treatment Of Articles (AREA)
Abstract
The utility model provides a built-in reducing protective gas generation device. The built-in reducing protective gas generation device comprises a mixing system, a combustion system, a purification system and a safety system; the mixing system comprises a natural gas inlet, a decompressor, a pressure stabilizer, a high and low pressure protective electromagnetic valve, a flowmeter, a roots blower, a pressure controller, a flow controller and a mixing device; the built-in reducing protective gas generation device is characterized in that the natural gas inlet is orderly connected with the decompressor, the pressure stabilizer, the high and low pressure protective electromagnetic valve, the flowmeter and the mixing device, the roots blower is orderly connected with the pressure controller, the flow controller and the mixing device, the combustion system is composed of an igniter, a combustion chamber, a burner and a burner controller, the purification system is composed of a condenser and a filter device, and the safety device is composed of an explosion prevention device and a blow off valve. The reducing protective gas generated by the built-in reducing protective gas generation device is used for bright heat treatment of a steel pipe, and therefore, the surface quality of the steel pipe can be improved, and the energy conservation and emission reduction effects can be achieved.
Description
Technical field
The utility model belongs to steel pipe preparing technical field, is specifically related to a kind of internally-arranged type restitutive protection gas generating unit.
Background technology
Heat-treating Furnace For Steel Tubes is the key equipment that colddrawing seamless pipe is produced, its Main Function is: the thermal treatment of steel pipe refer to steel pipe by suitable heating insulation and subsequently cooling the reaching of different modes change its internal organizational structure, improve and obtain the technological process of desired performance.The thermal treatment of steel pipe adopts complete heat treatment conventionally, is continous way Heat-treating Furnace For Steel Tubes at the bottom of roller.After steel pipe cold working because of the difference of its interior tissue situation, as size of grain boundary structure, strengthening phase, the form being mingled with and distribution and dislocation, internal stress etc. all can affect its performance; And by adopting different thermal treatment process, different heating cycle soaking time and speed of cooling, can obtain needed steel pipe tissue and good over-all properties.Heat-treating Furnace For Steel Tubes is generally divided into protective atmosphere steel pipe non-oxidation heat processing furnace and unprotect atmosphere steel pipe oxidizing thermal treatment stove.Unprotect ambient oxidation heat treatment furnace is comparatively general, in China cold drawing steel tube factory 95%, is all the heat treatment furnace of unprotect atmosphere furnace, and its shortcoming is: steel tube surface oxide skin is serious, to later process make troubles (pickling); Fuel consumption is 355000 kilocalories of/ton of pipes more greatly, amount to Sweet natural gas about 42Nm
3/ ton pipe, mark coal is 0.051 ton of mark coal/ton pipe.
General shielding gas is broadly divided into three kinds: even a kind of, being the gas (uninflammability) of oxidizing gas steel pipe oxidation, as oxygen, atmosphere, water vapour, carbonic acid gas etc., is exactly also above-mentioned unprotect atmosphere furnace.The second is the gas that reducing gas is about to steel pipe reduction, as hydrogen, carbon monoxide etc.; Because this kind of gas has combustibility, generally seldom adopt.The third is non-active gas (uninflammability), as nitrogen, argon gas etc.The protection gas adopting at the existing atmosphere protection stove of China is nitrogen protection.
Nitrogen that nitrogen protection Heat-treating Furnace For Steel Tubes is used source has two kinds: a kind of is that industrial liquid nitrogen is manufactured by professional Gas Plant, with groove tank, is transported to factory, inputs and in stove, serve as protection gas after gasifying; Another is that factory provides Nitrogen plant for oneself, carries to be filled with in stove, protect gas through pipeline.The gas cost of these two kinds of modes is all higher, and Steel Pipe Heat is processed consumption per ton at 30Nm
3left and right, amounts to approximately 10.5 yuan/ton of Steel Pipe Heat processing costs per ton.In addition because the nitrogen being filled with is normal temperature, certainly will to absorb heat after being filled with in stove, thereby bring fuel consumption to increase.The fuel consumption of general nitrogen protection stove, at 386000 kilocalories of/ton of pipes, amounts to Sweet natural gas about 47Nm
3/ ton pipe, mark coal is 0.057 ton of mark coal/ton pipe.
Summary of the invention
The utility model is for the problems referred to above; a kind of internally-arranged type restitutive protection gas generating unit is provided, and this generating unit produces restitutive protection's gas, for Steel Pipe Heat, processes; not only can improve steel tube surface quality (light or the non-oxidation of turning blue), and play the effect of energy-saving and emission-reduction.
The technical solution of the utility model is: a kind of internally-arranged type restitutive protection gas generating unit, comprise mixing system, firing system, purification system, security system, described mixing system comprises gas inlet, decompression machine, potentiostat, high-low pressure protection magnetic valve, under meter, roots blower, pressure controller, flow director, mixing device, it is characterized in that: the described gas inlet decompression machine that is linked in sequence, potentiostat, high-low pressure protection magnetic valve, under meter, mixing device, the described roots blower pressure controller that is linked in sequence, flow director, mixing device, described firing system is by lighter for ignition, combustion chamber, burner, burner controller forms, described purification system is by condenser, filtration unit forms, described security system is by explosion-proof apparatus, diffusion valve forms.
The beneficial effects of the utility model are:
(1) save the energy: energy consumption cuts down 12%, be the consumption of ton pipe and reduced by 48000 kilocalories, amount to Sweet natural gas about 5.8Nm
3ton pipe, mark coal is 0.007 ton of mark coal/ton pipe; By China's colddrawing seamless pipe statistics in 2012, be 8,700,000 tons of calculating, always save 6.09 ten thousand tons of mark coals of the energy, reached energy-saving and cost-reducing object;
(2) during generally by fuel gas perfect combustion, needed atm number is 100%, a large amount of carbonic acid gas that produces needs outer row, and internally-arranged type restitutive protection gas steel pipe bright heat treatment furnace is to adopt unburnt method, the carbonic acid gas producing partly continues fission, therefore the outer discharge capacity of carbonic acid gas can cut down 27%, plays the effect of energy-saving and emission-reduction;
(3) improved the surface quality of steel pipe, reduced later process pressure, steel pipe has been realized to light processing.
Accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present utility model.
In figure, 1. gas inlet, 2. decompression machine, 3. potentiostat; 4. high-low pressure is protected magnetic valve, 5. explosion-proof apparatus, 6. diffusion valve; 7. under meter, 8. lighter for ignition, 9. combustion chamber; 10. condenser, 11. filtration units, 12. steel pipe bright heat treatment furnaces; 13. roots blowers, 14. pressure controllers, 15. flow directors; 16. mixing devices, 17. burners, 18. burner controllers.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of internally-arranged type restitutive protection gas generating unit in the utility model, comprise mixing system, firing system, purification system, security system, described mixing system comprises gas inlet 1, decompression machine 2, potentiostat 3, high-low pressure protection magnetic valve 4, under meter 7, roots blower 13, pressure controller 14, flow director 15, mixing device 16, it is characterized in that: described gas inlet 1 decompression machine 2 that is linked in sequence, potentiostat 3, high-low pressure protection magnetic valve 4, under meter 7, mixing device 16, described roots blower 13 pressure controller 14 that is linked in sequence, flow director 15, mixing device 16, described firing system is by lighter for ignition 8, combustion chamber 9, burner 17, burner controller 18 forms, described purification system is by condenser 10, filtration unit 11 forms, described security system is by explosion-proof apparatus 5, diffusion valve 6 forms.
Working process of the present utility model:
Sweet natural gas and air mixed: the Sweet natural gas that pressure is 0.1MPa enters pipeline by gas inlet 1, unzip to 20KPa through decompression machine 2, through potentiostat 3 and high-low pressure protection magnetic valve 4, through under meter 7 measure control, enters mixing device 16; Pressure is the air of 15～20KPa, by roots blower 13, under the effect of pressure controller 14, pressure-controlling is stabilized in 15～20Kpa, flow director 15 is control pressure under the prerequisite that guarantees flow, flows to mixing device 16, and Sweet natural gas is 1: 7 with the mixed volume ratio of air;
Burning and cracking: the gas mixture of Sweet natural gas and air, by mixing device 16, sprays into combustion chamber 9 through burner 17, with lighter for ignition 8, lights and the 9 interior burnings in combustion chamber, by the burner controller 18 interior temperature in control combustion chamber 9, remains on 1000 ℃, and the time is 5 minutes;
Condensation cleaning is processed: burning gas is through condenser 10, and condensing temperature is controlled at 80 ℃, and the time is 30 minutes, makes moisture content wherein be condensed into liquid water and discharge, then installs after filtration 11 purifying treatment, removes impurity wherein, enters steel pipe bright heat treatment furnace 12;
Safeguard protection: when generating unit generation abnormal conditions, the security system being comprised of explosion-proof apparatus 5, diffusion valve 6, diffuses processing.
General Steel Pipe Heat is processed needed fuel consumption at 386000 kilocalories of/ton of pipes; the required fuel consumption of internally-arranged type restitutive protection gas steel pipe bright heat treatment is 338000 kilocalories of/ton of pipes; be the consumption of ton pipe and reduced by 48000 kilocalories, amount to Sweet natural gas about 5.8Nm
3ton pipe, mark coal is 0.007 ton of mark coal/ton pipe.
Restitutive protection's gas that the present embodiment obtains is for steel pipe bright heat treatment, and after testing, institute's inspection project meets GB/T3639-2009 standard to handled tube product, and product is qualified, has met user's requirement.
A kind of technical feature comparison through the heat treated steel pipe of restitutive protection's gas and conventional steel pipe
As can be seen here, restitutive protection's gas that the utility model produces, for steel pipe bright heat treatment, not only can improve steel tube surface quality, and play the effect of energy-saving and emission-reduction.
Claims (1)
1. an internally-arranged type restitutive protection gas generating unit, comprise mixing system, firing system, purification system, security system, described mixing system comprises gas inlet, decompression machine, potentiostat, high-low pressure protection magnetic valve, under meter, roots blower, pressure controller, flow director, mixing device, it is characterized in that: the described gas inlet decompression machine that is linked in sequence, potentiostat, high-low pressure protection magnetic valve, under meter, mixing device, the described roots blower pressure controller that is linked in sequence, flow director, mixing device, described firing system is by lighter for ignition, combustion chamber, burner, burner controller forms, described purification system is by condenser, filtration unit forms, described security system is by explosion-proof apparatus, diffusion valve forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151547.7U CN203794948U (en) | 2014-03-26 | 2014-03-26 | Built-in reducing protective gas generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420151547.7U CN203794948U (en) | 2014-03-26 | 2014-03-26 | Built-in reducing protective gas generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203794948U true CN203794948U (en) | 2014-08-27 |
Family
ID=51377181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420151547.7U Expired - Lifetime CN203794948U (en) | 2014-03-26 | 2014-03-26 | Built-in reducing protective gas generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203794948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654490A (en) * | 2022-10-31 | 2023-01-31 | 杭州富通集团有限公司 | Protective gas supply device for oxygen-free copper rod production |
-
2014
- 2014-03-26 CN CN201420151547.7U patent/CN203794948U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654490A (en) * | 2022-10-31 | 2023-01-31 | 杭州富通集团有限公司 | Protective gas supply device for oxygen-free copper rod production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: WUXI JIANGNAN HIGH PRECISION COLD-DRAWN PIPE Co.,Ltd. Assignor: Zhi Xiangjun Contract record no.: 2015320010160 Denomination of utility model: Built-in reducing protective gas generation device Granted publication date: 20140827 License type: Exclusive License Record date: 20151210 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170519 Address after: 214151, Wuxi, Jiangsu province Huishan District Street Bridge Su Temple community Patentee after: WUXI JIANGNAN HIGH PRECISION COLD-DRAWN PIPE Co.,Ltd. Address before: 214151, No. 91, Branch Road, Su temple village, Qian Qiao Town, Huishan District, Jiangsu, Wuxi Patentee before: Zhi Xiangjun |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |