CN207193322U - A kind of hot-blast stove nitrogen purge system - Google Patents
A kind of hot-blast stove nitrogen purge system Download PDFInfo
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- CN207193322U CN207193322U CN201721136994.5U CN201721136994U CN207193322U CN 207193322 U CN207193322 U CN 207193322U CN 201721136994 U CN201721136994 U CN 201721136994U CN 207193322 U CN207193322 U CN 207193322U
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- hot
- blast stove
- nitrogen
- purging
- buffer unit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a kind of hot-blast stove nitrogen purge system, belong to hot-blast stove technical field.Hot-blast stove nitrogen purge system of the present utility model, including air supply manifold, decompressor, nitrogen buffer unit and the branch pipe purging system for being sequentially communicated and being fixedly connected, after high pressure nitrogen is depressurized by decompressor, difference further according to hot-blast stove purging to nitrogen demand, the nitrogen buffer unit of not co-content is set, play a part of storage, buffering and voltage stabilizing, branch pipe purging system is distributed to by nitrogen buffer unit again, it is uniformly distributed purging air-flow, realization is thoroughly purged, blown off, and is ensured in hot-blast stove purging cavity without gas residues such as coal gas.When solving hot-blast stove progress nitrogen purging, upstream gas source pipe pressure big ups and downs are easily caused, the problem of being affected greatly to upstream user nitrogen use.
Description
Technical field
It the utility model is related to hot-blast stove technical field, more particularly to a kind of hot-blast stove nitrogen purge system.
Background technology
At present, domestic hot-blast stove nitrogen purge system mainly uses following two modes, and one kind is to use heavy caliber source of the gas
House steward, respective valves are set on each branch pipe.Another is the modified of first way, sets nitrogen to buffer on house steward
Tank.
Above two method, the heavy caliber air supply manifold that first method uses is when hot-blast stove carries out nitrogen purging, pole
Upstream gas source pipe pressure big ups and downs are easily caused, upstream user nitrogen use is affected greatly, and house steward's valve selection
It is larger, cause investment and maintenance cost increase.Second method greatly improves existing for first method insufficient, but nitrogen
Gas tank volume is larger and is pressure vessel, belongs to special equipment, cost of equipment and production maintenance are costly.
Through retrieval, Chinese patent application, application number 201610135357.X, publication date 2016.05.18, one kind is disclosed
Hot-blast stove gas pipeline blow device and blowing method.The utility model is one nitrogen of increase between combustion valve and hot-blast stove
Entrance, blowing method comprise the following steps：Stop to heat wind furnace before this, cut off combustion valve, open nitrogen purge valve, nitrogen enters
Enter the gas pipeline behind combustion valve and carry out pipe-line purging, a nitrogen pipeline entrance is set up between combustion valve and hot-blast stove,
So when gas stop valve, which breaks down, is unable to the situation of normal cutoff, coal is cut valve and keep it turned on deactivation, directly cut
Disconnected combustion valve, open nitrogen purge valve and carry out pipe-line purging, ensure that hot-blast stove normally changes stove and blast furnace safety production.The practicality is new
Type needs nitrogen purging to be used with reference to cold wind, and cold wind source device is relatively heavy, and flexible property is poor.
Utility model content
1. utility model technical problems to be solved
When carrying out nitrogen purging for hot-blast stove present in prior art, easily cause upstream gas source pipe pressure violent
Fluctuation, is affected greatly, and nitrogen tank volume is larger and is pressure vessel, belongs to special type and sets to upstream user nitrogen use
Standby, the problem of cost of equipment and costly production maintenance, the utility model provides a kind of hot-blast stove nitrogen purge system.Can
Upstream gas source pipe pressure stability during reaching hot-blast stove nitrogen purging, system investments and maintenance are small, nitrogen actual amount is small,
Save production cost, simple to operate, applicable, safe and reliable purpose.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the utility model is：
A kind of hot-blast stove nitrogen purge system, including be sequentially communicated and be fixedly connected air supply manifold, decompressor, nitrogen
Buffer unit and branch pipe purging system, after high pressure nitrogen is depressurized by decompressor, nitrogen is needed further according to hot-blast stove purging
The difference for the amount of asking, the nitrogen buffer unit of not co-content is set, plays a part of storage, buffering and voltage stabilizing, then buffered by nitrogen
Device distributes to branch pipe purging system, is uniformly distributed purging air-flow, and realization is thoroughly purged, blown off, and ensures that hot-blast stove purging is empty
Intracavitary is without gas residues such as coal gas.
Further technical scheme, branch pipe purging system are several of parallel connection, connect and are connected to nitrogen buffering dress
Put, setting branch pipe purging system number is needed according to hot-blast stove purging cavity, with each guarantee hot-blast stove purging cavity
It can thoroughly be purged, improve purging efficiency.
Further technical scheme, in addition to the bleeding device one at air supply manifold top and putting for nitrogen buffer unit end
It is in bulk to put two, avoid nitrogen pressure too high and cause the big ups and downs of upstream gas source pipe pressure.
Further technical scheme, check-valves is additionally provided between bleeding device one and decompressor, avoids gas in pipeline
Body flows back and influences the purity and Nitrogen source gases pipe safety of purging nitrogen.
Further technical scheme, detection means is additionally provided between bleeding device one and decompressor, to detect pipeline
The pressure of interior gas is simultaneously adjusted accordingly accordingly, avoids gas in pipelines hypertonia or too low.
Further technical scheme, detection means includes the detection means one and detection means two being arranged side by side, with detection
The influence factor that gas in pipelines relevant parameter purges to hot-blast stove, such as pressure or gas flow etc..
Further technical scheme, nitrogen buffer unit are provided with detection means three and safety valve, to monitor nitrogen buffering
Gas pressure or flow in device, and avoid pressure excessive and damage nitrogen buffer unit and system safety.
Further technical scheme, the tail end of branch pipe purging system connect and are connected with annular multiple spot blow device, can be with
Make the purging of gas more uniform effective, improve purging efficiency.
Further technical scheme, diameter≤100mm of air supply manifold, the design and use of small-caliber pipeline reduce work
Cheng Liang；It is convenient to select and installation mini-plant, reduce investment outlay and maintenance cost；The instantaneous maximum stream flow of gas in small-bore pipeline
It is small, it is small on being influenceed caused by the air supply manifold of upstream.
Further technical scheme, electrically operated valve built in branch pipe purging system and check-valves two, it is possible to achieve automation control
System, and avoid gas backstreaming.
3. beneficial effect
Using technical scheme provided by the utility model, compared with prior art, have the advantages that：
(1) a kind of hot-blast stove nitrogen purge system of the present utility model, the setting of nitrogen buffer unit, it is that air supply manifold is small
The precondition that caliber pipeline is set, the difference according to hot-blast stove purging to nitrogen demand, sets the nitrogen of not co-content to delay
Flushing device, play a part of storage, buffering and voltage stabilizing；Upstream gas source pipe pressure stability when realizing hot-blast stove nitrogen purging, it is
System investment and maintenance are small, and nitrogen actual amount is small, saves production cost, simple to operate, applicable, safe and reliable target；
(2) a kind of hot-blast stove nitrogen purge system of the present utility model, set on air supply manifold diffuse, non-return, detection and
Decompressor：Guarantee system is safe and reliable；When upstream user interruption uses nitrogen amount maximum, ensure hot-blast stove purging by normal
Program is not flowed back；The related datas such as real-time monitoring system pressure, flow, it is directly perceived visual, provide base for hot-blast stove production
Plinth data, and provide foundation for its producting cost accounting；Realize that hot-blast stove nitrogen purges the requirement to gas pressure；
(3) a kind of hot-blast stove nitrogen purge system of the present utility model, the design and use of small-caliber pipeline reduce work
Cheng Liang；It is convenient to select and installation mini-plant, reduce investment outlay and maintenance cost；The instantaneous maximum stream flow of gas in small-bore pipeline
It is small, it is small on being influenceed caused by the air supply manifold of upstream；
(4) a kind of hot-blast stove nitrogen purge system of the present utility model, annular multiple spot blow device are added using ring main
Multiple spot purges the mode of branch pipe, is uniformly distributed purging air-flow, and realization is thoroughly purged, blown off, and ensures in hot-blast stove purging cavity
Without gas residues such as coal gas；
(5) a kind of hot-blast stove nitrogen purge system of the present utility model, can apply to hot blast stove system design, construction,
Newly-built and renovation technique field, it is particularly applied to the design of hot-blast stove nitrogen purge system, construction, newly-built and renovation technique neck
Domain, wide application.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1-air supply manifold；2-bleeding device one；3-check-valves one；4-detection means one；5-detection means
Two；6-decompressor；7-nitrogen buffer unit；8-branch pipe purging system；9-detection means three；10-safety valve；11—
Bleeding device two；12-annular multiple spot blow device；81-check-valves two；82-electrically operated valve.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail with reference to accompanying drawing.
Embodiment 1
A kind of hot-blast stove nitrogen purge system of the present embodiment, as shown in figure 1, including the gas for being sequentially communicated and being fixedly connected
Source house steward 1, decompressor 6, nitrogen buffer unit 7 and branch pipe purging system 8, after high pressure nitrogen is depressurized by decompressor 6,
Difference further according to hot-blast stove purging to nitrogen demand, the nitrogen buffer unit 7 of not co-content is set, plays storage, buffering
With the effect of voltage stabilizing, then branch pipe purging system 8 distributed to by nitrogen buffer unit 7, be uniformly distributed purging air-flow, realize thorough
Purge, blow off, ensure in hot-blast stove purging cavity without gas residues such as coal gas.
A kind of hot-blast stove nitrogen purge system of the present embodiment, the setting of nitrogen buffer unit 7, is air supply manifold's pipe with small pipe diameter
The precondition that pipeline is set, the difference according to hot-blast stove purging to nitrogen demand, the nitrogen buffering of not co-content is set to fill
Putting, play a part of storage, buffering and voltage stabilizing, upstream gas source pipe pressure stability during by realizing that hot-blast stove nitrogen purges, being
System investment and maintenance are small, and nitrogen actual amount is small, saves production cost, simple to operate, applicable, safe and reliable target and
Technique effect.
Embodiment 2
A kind of hot-blast stove nitrogen purge system of the present embodiment, basic structure exist with embodiment 1, different and improvements
In：Branch pipe purging system 8 is several of parallel connection, connects and is connected on nitrogen buffer unit 7, is purged according to hot-blast stove empty
Chamber needs setting branch pipe 8 numbers of purging system, can thoroughly be purged, improved with each guarantee hot-blast stove purging cavity
Purge efficiency.
Embodiment 3
A kind of hot-blast stove nitrogen purge system of the present embodiment, basic structure exist with embodiment 2, different and improvements
In：The bleeding device 2 11 of bleeding device 1 and the end of nitrogen buffer unit 7 also including the top of air supply manifold 1, avoids nitrogen
Hypertonia has when mixing other gases and causes the big ups and downs of upstream gas source pipe pressure hidden to safety in production generation
Suffer from..Check-valves 3 is additionally provided between bleeding device 1 and decompressor 6, avoids gas in pipelines from flowing back and influences purging nitrogen
The purity and Nitrogen source gases pipe safety of gas.
Embodiment 4
The hot-blast stove nitrogen purge system of the present embodiment, basic structure are different and the improvement is that with embodiment 3：Put
In bulk put is additionally provided with detection means between one 2 and decompressor 6, the fixing end and the communication type of air supply manifold 1 of detection means connect
Connect, to detect the pressure of gas in pipelines and be adjusted accordingly accordingly, avoid gas in pipelines hypertonia or too low.Inspection
Surveying device includes the detection means 1 and detection means 25 that are arranged side by side, can be pressure-detecting device, flow detector,
To detect the influence factor that gas relevant parameter purges to hot-blast stove in pipeline.
Embodiment 5
The hot-blast stove nitrogen purge system of the present embodiment, basic structure are different and the improvement is that with embodiment 4：Nitrogen
Gas buffer unit 7 is provided with the fixing end communication type company of detection means 39 and safety valve 10, detection means 39 and safety valve 10
It is connected on nitrogen buffer unit 7, to monitor the gas pressure in nitrogen buffer unit 7, and avoids pressure excessive and damage nitrogen
Buffer unit 7 and hot blast stove system safety.
Embodiment 6
The hot-blast stove nitrogen purge system of the present embodiment, basic structure are different and the improvement is that with embodiment 5：Branch
The tail end of pipe purging system 8 is connected and is connected with annular multiple spot blow device 12, and a purging branch pipe is added using ring main
Mode, it is uniformly distributed purging air-flow, realization is thoroughly purged, blown off, and is ensured residual without gases such as coal gas in hot-blast stove purging cavity
Stay.
Embodiment 7
The hot-blast stove nitrogen purge system of the present embodiment, basic structure are different and the improvement is that with embodiment 6：Gas
Diameter≤100mm of source house steward 1, the design and use of small-caliber pipeline reduce quantities；Conveniently select and install small-sized set
It is standby, reduce investment outlay and maintenance cost；The instantaneous maximum stream flow of gas is small in small-bore pipeline, on influence caused by the air supply manifold of upstream
It is small.
Embodiment 8
The hot-blast stove nitrogen purge system of the present embodiment, basic structure are different and the improvement is that with embodiment 7：Branch
Electrically operated valve 82 built in pipe purging system 8 and check-valves 2 81, it is possible to achieve Automated condtrol, and avoid gas backstreaming.
The hot-blast stove nitrogen purge system of the present embodiment, it can apply to hot blast stove system design, construction, newly-built and transformation
Technical field, it is particularly applied to the design of hot-blast stove nitrogen purge system, construction, newly-built and renovation technique field, wide application.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, without departing from the spirit of the invention, without creativeness designing with should
The similar frame mode of technical scheme and embodiment, all should belong to the scope of protection of the utility model.
Claims (10)
1. a kind of hot-blast stove nitrogen purge system, including the air supply manifold (1) for connecting and being fixedly connected and decompressor (6), its
It is characterised by：Also include nitrogen buffer unit (7) and branch pipe purging system (8)；Wherein：
The nitrogen buffer unit (7) connects and is fixedly connected with decompressor (6), and branch pipe purging system (8) connection is simultaneously
It is connected on nitrogen buffer unit (7).
2. hot-blast stove nitrogen purge system according to claim 1, it is characterised in that：The branch pipe purging system (8) is
In parallel several, connect and are connected on nitrogen buffer unit (7).
3. hot-blast stove nitrogen purge system according to claim 2, it is characterised in that：Also include air supply manifold (1) top
Bleeding device one (2) and nitrogen buffer unit (7) end bleeding device two (11).
4. hot-blast stove nitrogen purge system according to claim 3, it is characterised in that：The bleeding device one (2) and subtract
Check-valves (3) is additionally provided between pressure device (6).
5. hot-blast stove nitrogen purge system according to claim 3, it is characterised in that：The bleeding device one (2) and subtract
Detection means is additionally provided between pressure device (6), the fixing end of the detection means connects with air supply manifold (1) communication type.
A kind of 6. hot-blast stove nitrogen purge system described in claim 5, it is characterised in that：The detection means includes setting side by side
The detection means one (4) and detection means two (5) put.
7. hot-blast stove nitrogen purge system according to claim 6, it is characterised in that：The nitrogen buffer unit (7) sets
Detection means three (9) and safety valve (10) are equipped with, the detection means three (9) connects with the fixing end communication type of safety valve (10)
In on nitrogen buffer unit (7).
8. hot-blast stove nitrogen purge system according to any one of claims 1 to 7, it is characterised in that：The branch pipe purging system
The tail end of system (8) connects and is connected with annular multiple spot blow device (12).
9. hot-blast stove nitrogen purge system according to claim 8, it is characterised in that：The diameter of the air supply manifold (1)
≤100mm。
10. hot-blast stove nitrogen purge system according to claim 8, it is characterised in that：In the branch pipe purging system (8)
Put electrically operated valve (82) and check-valves two (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136994.5U CN207193322U (en) | 2017-09-06 | 2017-09-06 | A kind of hot-blast stove nitrogen purge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136994.5U CN207193322U (en) | 2017-09-06 | 2017-09-06 | A kind of hot-blast stove nitrogen purge system |
Publications (1)
| Publication Number | Publication Date |
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| CN207193322U true CN207193322U (en) | 2018-04-06 |
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ID=61791442
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721136994.5U Expired - Fee Related CN207193322U (en) | 2017-09-06 | 2017-09-06 | A kind of hot-blast stove nitrogen purge system |
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| CN (1) | CN207193322U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643771A (en) * | 2019-03-15 | 2020-01-03 | 广东韶钢松山股份有限公司 | Method for efficiently driving coal gas of blast furnace hot blast stove coal gas system |
| WO2022062913A1 (en) * | 2020-09-22 | 2022-03-31 | 中广核核电运营有限公司 | Capillary line purge drying system |
| CN115779813A (en) * | 2022-11-16 | 2023-03-14 | 万华化学集团股份有限公司 | Reaction system purging method, device and system and storage medium |
-
2017
- 2017-09-06 CN CN201721136994.5U patent/CN207193322U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643771A (en) * | 2019-03-15 | 2020-01-03 | 广东韶钢松山股份有限公司 | Method for efficiently driving coal gas of blast furnace hot blast stove coal gas system |
| WO2022062913A1 (en) * | 2020-09-22 | 2022-03-31 | 中广核核电运营有限公司 | Capillary line purge drying system |
| CN115779813A (en) * | 2022-11-16 | 2023-03-14 | 万华化学集团股份有限公司 | Reaction system purging method, device and system and storage medium |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 |
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| CF01 | Termination of patent right due to non-payment of annual fee |