CN202063973U - Oxygen enrichment system of heating furnace for steel rolling - Google Patents
Oxygen enrichment system of heating furnace for steel rolling Download PDFInfo
- Publication number
- CN202063973U CN202063973U CN2011201480332U CN201120148033U CN202063973U CN 202063973 U CN202063973 U CN 202063973U CN 2011201480332 U CN2011201480332 U CN 2011201480332U CN 201120148033 U CN201120148033 U CN 201120148033U CN 202063973 U CN202063973 U CN 202063973U
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- China
- Prior art keywords
- oxygen
- valve group
- enrichment system
- oxygen enrichment
- heater
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- Expired - Fee Related
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Abstract
The utility model relates to an oxygen enrichment system of a heating furnace for steel rolling. The oxygen enrichment system comprises an oxygen pipe line, wherein one end of the oxygen pipe line is connected with an oxygen main pipe of a combustion-supporting machine room, and the other end of the oxygen pipe line is connected with an air pipe of a user; a pressure reducing valve group and a flow regulating valve group are arranged on the oxygen pipe line in sequence; a check valve is arranged behind the flow regulating valve group; and the pressure reducing valve group and the flow regulating valve group are connected with a control system respectively. Through the oxygen enrichment system, the diffusion problem of oxygen can be solved, and the utilization ratio of energy sources is improved.
Description
Technical field
The utility model relates to a kind of eutrophic system, particularly relates to a kind of heater for rolling steel oxygen enrichment system.
Background technology
The heater for rolling steel oxygen enrichment burns stove, briefly, exactly oxygen is blown in the combustion air pipeline of process furnace burning stove, improves the oxygen content of combustion air.From process furnace theoretical combustion temperature calculation formula as can be known, theoretical combustion temperature is directly proportional with the physics heat that lower heating value, combustion air and the burning of coal gas are brought into coal gas, is inversely proportional to the mean heat capacity of combustion products amount and combustion products.But present heater for rolling steel oxygen enrichment system can't diffuse problem by solution oxygen in full force and effect, makes energy utilization rate low.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of heater for rolling steel oxygen enrichment system, can solve oxygen and diffuse problem, improves energy utilization rate.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of heater for rolling steel oxygen enrichment system is provided, comprises oxygen channel, described oxygen channel one end links to each other with the oxygen house steward of combustion-supporting machine room, and the other end links to each other with user's airduct; Be provided with reducing valve group and flow control valve group on the described oxygen channel successively; Be provided with vacuum breaker after the described flow control valve group; Described reducing valve group links to each other with Controlling System respectively with the flow control valve group.
Described reducing valve group two ends are provided with tensimeter.
Described reducing valve group is made up of an electric press variable valve.
Described flow control valve group is made up of the under meter and the motor-driven control valve of serial connection.
Described oxygen channel adopts stainless material to make.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art, have following advantage and positively effect: can solve oxygen diffuses problem to the utility model on the one hand, improve energy utilization rate: on the other hand, burn stove by oxygen enrichment, improved hot blast temperature, thereby can improve fire box temperature, increased economic efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment of the present utility model relates to a kind of heater for rolling steel oxygen enrichment system, as shown in Figure 1, comprises oxygen channel 1, and described oxygen channel 1 one ends link to each other with the oxygen house steward 2 of combustion-supporting machine room, and the other end links to each other with user's airduct 3; Be provided with reducing valve group 4 and flow control valve group 5 on the described oxygen channel 1 successively; Be provided with vacuum breaker 6 after the described flow control valve group 5; Described reducing valve group 4 links to each other with Controlling System 7 respectively with flow control valve group 5.Wherein, reducing valve group 4 is made up of an electric press variable valve 9; Flow control valve group 5 is made up of the under meter 10 and the motor-driven control valve 11 of serial connection.Be provided with tensimeter 8 at reducing valve group 4 two ends, be used to observe the oxygen pressure value at pressurizing valve group two ends, be convenient to the adjusting of oxygen pressure.Oxygen channel 1 adopts stainless material to make, and can save the stainless steel spark arrester.
The utility model utilizes oxygen hose pressure behind pressure unit and the electric press variable valve control pressure variable valve, remains in the scope of 0.5～0.55MPa by oxygen pressure after adjusting pressure controlled aperture and guaranteeing variable valve; Adopt under meter and motor-driven control valve, according to the air flow quantity situation of burner blower outlet airduct, the oxygen flow of control oxygen channel is realized the control of Rich Oxygen Amount by oxygen channel amount of oxygen and burner blower outlet airduct air capacity rational proportion.The utility model adopts the DCS Controlling System, the software programming of HMI picture, and be incorporated into original system.
The oxygen channel diameter that this heater for rolling steel oxygen enrichment system picks out from house steward is DN50, material stainless steel, the about 20m of length; The oxygen caliber that enters burner blower outlet conduit (being the user) after reducing valve group and flow control valve group is DN65, material stainless steel tube, the about 40m of length.Valve is selected oxygen special purpose copper stopping valve for use, and the purging bleeder is a stainless steel tube.
Be not difficult to find, the utility model can utilize unnecessary oxygen, by oxygen-enriching device is set, heater for rolling steel is carried out oxygen enrichment burn stove, oxygen enrichment percentage is considered by about 2～4%, and in original heater for rolling steel master control room, add Controlling System and relevant control picture, realize the supervision and the operating function of system.Can solve oxygen diffuses problem on the one hand, improves energy utilization rate: on the other hand, burn stove by oxygen enrichment, improved hot blast temperature, thereby can improve fire box temperature, increase economic efficiency.
Claims (5)
1. a heater for rolling steel oxygen enrichment system comprises oxygen channel (1), it is characterized in that, described oxygen channel (1) one end links to each other with the oxygen house steward (2) of combustion-supporting machine room, and the other end links to each other with user's airduct (3); Be provided with reducing valve group (4) and flow control valve group (5) on the described oxygen channel (1) successively; Be provided with vacuum breaker (6) after the described flow control valve group (5); Described reducing valve group (4) links to each other with Controlling System (7) respectively with flow control valve group (5).
2. heater for rolling steel oxygen enrichment system according to claim 1 is characterized in that, described reducing valve group (4) two ends are provided with tensimeter (8).
3. heater for rolling steel oxygen enrichment system according to claim 1 and 2 is characterized in that, described reducing valve group (4) is made up of an electric press variable valve (9).
4. heater for rolling steel oxygen enrichment system according to claim 1 is characterized in that, described flow control valve group (5) is made up of the under meter (10) and the motor-driven control valve (11) of serial connection.
5. heater for rolling steel oxygen enrichment system according to claim 1 is characterized in that, described oxygen channel (1) adopts stainless material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201480332U CN202063973U (en) | 2011-05-11 | 2011-05-11 | Oxygen enrichment system of heating furnace for steel rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201480332U CN202063973U (en) | 2011-05-11 | 2011-05-11 | Oxygen enrichment system of heating furnace for steel rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202063973U true CN202063973U (en) | 2011-12-07 |
Family
ID=45057842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201480332U Expired - Fee Related CN202063973U (en) | 2011-05-11 | 2011-05-11 | Oxygen enrichment system of heating furnace for steel rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202063973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748568A (en) * | 2015-04-03 | 2015-07-01 | 首钢总公司 | Heating method and system based on steel rolling heating furnace |
| CN114279231A (en) * | 2021-11-11 | 2022-04-05 | 江苏中圣园科技股份有限公司 | Oxygen-enriched combustion system of sleeve kiln |
-
2011
- 2011-05-11 CN CN2011201480332U patent/CN202063973U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748568A (en) * | 2015-04-03 | 2015-07-01 | 首钢总公司 | Heating method and system based on steel rolling heating furnace |
| CN114279231A (en) * | 2021-11-11 | 2022-04-05 | 江苏中圣园科技股份有限公司 | Oxygen-enriched combustion system of sleeve kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20150511 |
|
| EXPY | Termination of patent right or utility model |