CN202022955U - Steam supply device for RH refining furnace - Google Patents
Steam supply device for RH refining furnace Download PDFInfo
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- CN202022955U CN202022955U CN2011200003336U CN201120000333U CN202022955U CN 202022955 U CN202022955 U CN 202022955U CN 2011200003336 U CN2011200003336 U CN 2011200003336U CN 201120000333 U CN201120000333 U CN 201120000333U CN 202022955 U CN202022955 U CN 202022955U
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- steam
- converter
- valve
- supply device
- refining furnace
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Abstract
A steam supply device for an RH refining furnace belongs to gas delivery devices, and particularly relates to a steam supply device for a liquid steel refining furnace. The steam supply device comprises a temperature reducing valve, a temperature transmitter, an electric pipe-network cut-off valve, a pipe-network globe valve, a secondary reducing valve and a pressure transmitter which are connected through a pipeline to form a steam supply pipeline for a steam pipe network, the steam supply pipeline is connected with the steam pipe network, the RH refining furnace and a converter heat accumulator respectively, and the converter heat accumulator is further provided with a muffler and a bleeding valve. The steam supply device is characterized in that the converter heat accumulator is provided with a steam delivery pipeline connected with the secondary reducing valve, and the converter heat accumulator is further provided with a network pipeline connected with the steam pipe network, so that converter steam and pipe network steam can be conveyed respectively and converged for use, and can automatically switch in use. The steam supply device for the RH refining furnace has the advantages of unique and reasonable conception, safety and reliability in operation, and investment conservation; the utilization ratio of the converter steam is improved, the diffusion quantity is reduced, converter steam loss during transportation is reduced, the converter steam is effectively utilized, and the resources are saved; and the steam supply device facilitates environmental protection, and has favorable economic benefits and environmental benefits.
Description
Technical field
The utility model belongs to air transporting arrangement, relates in particular to liquid steel refining stove steam delivery device.
Background technology
The main purpose of RH refining furnace is further refined molten steel, production Ultra-low carbon Clean Steel.Its groundwork principle is: molten steel is at the vacuum tank internal recycle, and realizes depth decarburization by the oxygen rifle in vacuum environment.Steam then is the propulsion source of multistage vacuum pump, and vacuum pump has been realized the vacuum environment in the vacuum tank.In steel-making factory, converter is produced and can be produced steam more than needed, and the RH refining furnace will consume steam, directly uses for RH if can realize converter steam, will significantly reduce diffusing of converter steam, and this has not only saved the energy, has reduced noise pollution simultaneously again; Has important economic and social benefit.
The RH refining furnace uses steam by the steam pipe system steam supply in the time of early.After the vapor recovery that converter produces, then steam pipe system is connected with the converter steam accumulator, draws one road vapour line by the converter thermophore and be connected, to RH refining furnace steam supply with the RH refining furnace.Its defective is: because the operating pressure fluctuation range of bof converter thermophore is big, particularly mammoth conveter requires the resistance to pressure of pipe network and Guan Rong all very big, has therefore strengthened facility investment; Converter steam is input into steam pipe system earlier, and then uses for the RH refining furnace, and the course of conveying loss is big, and the converter steam utilization is low, also pollutes the environment.
Also have plenty of earlier and will use for RH after the converter steam superheatingization again, this generally is common in small vessel.Because the vapor pressure that small vessel produces is lower, water content is big, is not suitable for directly using for RH.The shortcoming of this method is: equipment has high input, use cost is also higher.
Summary of the invention
In order to overcome the defective that prior art exists, the purpose of this utility model provides a kind of RH refining furnace steam steam supply device, and use is carried, converged to pipe network steam and converter steam earlier along separate routes, reduce converter steam and diffuse and loss, increase operation rate; Reduce ductwork pressure and Guan Rong, save facility investment.
RH refining furnace steam steam supply device, comprise that desuperheat valve, temperature transmitter, the electronic trip valve of pipe network, pipe network stopping valve, secondary reducing valve, pressure unit constitute pipe network steam supply pipeline through pipe connection, be connected respectively with steam pipe system, RH refining furnace, bof converter thermophore, the bof converter thermophore also is provided with sound damper and diffuses valve, characteristics are that the bof converter thermophore is established the steam delivery tube road and the secondary reducing valve connects, and establish the networking pipeline and are connected with steam pipe system.
The utility model further improves, and reducing valve of described steam delivery tube route, aspirated pressure transmitter, send the electronic trip valve of vapour, send the vapour stopping valve to constitute through pipe connection, connects with the secondary reducing valve.
Another improvement, described networking pipeline is made of through pipe connection network electronic trip valve, variable valve and networking pressure unit, connects with steam pipe system.
The steam that steam pipe system is sent carries out decrease temperature and pressure earlier, the bof converter thermophore is sent converter steam and is also carried out a step-down, converge through stopping valve respectively then, its pressure is higher than the desired pressure of RH refining furnace, uses for the RH refining furnace after the decompression of secondary reducing valve.Like this, reduced pressure treatment is all passed through on steam pipe system supply air line and converter steam steam delivery tube road before converging, stopping valve is arranged again each other, is independent of each other, and the pressure surge of bof converter thermophore can not have influence on steam pipe system.When the RH refining furnace uses steam, the electronic trip valve of pipe network and send the electronic trip valve of vapour to be in full-gear, the two pressure change according to converter steam and pipe network steam realizes switching automatically; When the RH refining furnace does not use steam, the electronic trip valve of pipe network and send the electronic trip valve of vapour to close; When converter steam or pipe network steam did not have steam, corresponding electronic trip valve cut out.
Compared with prior art, advantage is: novel, reasonable, safe and reliable to operation, and reduced investment; Improved the converter steam utilization, reached more than 85%, the converter steam amount of diffusing reduces, and has reduced the loss of converter delivery of steam process, has effectively utilized converter steam, economizes on resources; Also help environment protection, have good economic benefit and environmental benefit.
Description of drawings
The utility model is described in further detail for the contrast accompanying drawing below.
Fig. 1 is a RH refining furnace steam steam supply schematic diagram of device.
Embodiment
As seen from Figure 1, the RH refining furnace is by steam pipe system 16 and converter thermophore 2 steam supplies with steam steam supply device.The steam supply pipeline of the steam pipe system that steam pipe system 16 constitutes through pipe connection through desuperheat valve 7, temperature transmitter 6, the electronic trip valve 5 of pipe network, pipe network stopping valve 4, secondary reducing valve 3, pressure unit 2 is connected with RH refining furnace 1.Converter thermophore 12 through reducing valve 11, an aspirated pressure transmitter 10, the steam delivery tube road sending the electronic trip valve 9 of vapour, send vapour stopping valve 8 and pipe connection to constitute, connect with secondary reducing valve 3, converter steam and pipe network steam converge, and realization pipe network steam and converter steam are carried respectively and converged use again.Converter thermophore 12 becomes the networking pipeline via network electronic trip valve 13, variable valve 14, networking pressure unit 15 and pipe connection, is connected with steam pipe system 16, and converter steam more than needed is sent into steam pipe system.Converter steam diffuses through electronic that valve 18 diffuses, sound damper 17 noise reductions.
In order to improve the converter steam utilization, preferentially use converter steam, the converter steam that converter thermophore 12 the is come pressure that once reduces pressure is arranged to be higher than the pipe network vapor pressure, just can stop pipe network steam to enter the steam line of RH refining furnace at meet.
The RH refining furnace uses during the steam, the electronic trip valve of pipe network 5 with send the electronic trip valve 9 of vapour all to be in full-gear, at this moment, just rely on the pressure change of converter steam and pipe network steam to realize automatically switching, that is to say at meet the big person of pressure in the two, just use big person's steam, this has just guaranteed during the RH refining furnace is using steam, uses converter steam and pipe network steam to realize no disturbance switching, guarantees with vapour safe and reliable.When the RH refining furnace does not use steam, the electronic trip valve of pipe network 5 with send the electronic trip valve 9 of vapour to be in closing condition; When converter steam or pipe network steam did not have steam, corresponding electronic trip valve cut out.
Claims (3)
1.RH refining furnace steam steam supply device, comprise that desuperheat valve (7), temperature transmitter (6), the electronic trip valve of pipe network (5), pipe network stopping valve (4), secondary reducing valve (3), pressure unit (2) constitute pipe network steam supply pipeline through pipe connection, be connected respectively with steam pipe system (16), RH refining furnace (1), bof converter thermophore (12), it is characterized in that bof converter thermophore (12) establishes the steam delivery tube road, connect with secondary reducing valve (3), establish networking pipeline and steam pipe system (16) and connect.
2. RH refining furnace according to claim 1 steam steam supply device, it is characterized in that a reducing valve of described steam delivery tube route (11), aspirated pressure transmitter (10), send the electronic trip valve of vapour (9), send vapour stopping valve (8) to constitute, connect with secondary reducing valve (3) through pipe connection.
3. RH refining furnace according to claim 1 steam steam supply device, it is characterized in that described networking pipeline is made of through pipe connection network electronic trip valve (13), variable valve (14) and networking pressure unit (15), connects with steam pipe system (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200003336U CN202022955U (en) | 2011-01-04 | 2011-01-04 | Steam supply device for RH refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200003336U CN202022955U (en) | 2011-01-04 | 2011-01-04 | Steam supply device for RH refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202022955U true CN202022955U (en) | 2011-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200003336U Expired - Fee Related CN202022955U (en) | 2011-01-04 | 2011-01-04 | Steam supply device for RH refining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202022955U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232846A (en) * | 2014-09-19 | 2014-12-24 | 马钢(集团)控股有限公司 | System and method for supplying steam to RH refining furnace |
| CN106319158A (en) * | 2016-09-09 | 2017-01-11 | 中冶南方工程技术有限公司 | Steam acquiring method of vacuum refining furnace |
| CN107338344A (en) * | 2017-06-28 | 2017-11-10 | 秦皇岛首秦金属材料有限公司 | A kind of method for meeting the production of RH stoves with converter waste heat steam completely |
| CN110275461A (en) * | 2018-03-17 | 2019-09-24 | 杭州恒勋能源科技有限公司 | A kind of joint steam supplying device and its method of operation |
| CN111607687A (en) * | 2020-04-30 | 2020-09-01 | 邯郸钢铁集团有限责任公司 | Energy-saving device and method for improving steam quality of steelmaking RH refining furnace |
-
2011
- 2011-01-04 CN CN2011200003336U patent/CN202022955U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232846A (en) * | 2014-09-19 | 2014-12-24 | 马钢(集团)控股有限公司 | System and method for supplying steam to RH refining furnace |
| CN104232846B (en) * | 2014-09-19 | 2016-05-25 | 马钢(集团)控股有限公司 | A kind of system and method to RH refining furnace steam supply |
| CN106319158A (en) * | 2016-09-09 | 2017-01-11 | 中冶南方工程技术有限公司 | Steam acquiring method of vacuum refining furnace |
| CN106319158B (en) * | 2016-09-09 | 2018-06-08 | 中冶南方工程技术有限公司 | A kind of steam acquisition methods of vacuum refining furnace |
| CN107338344A (en) * | 2017-06-28 | 2017-11-10 | 秦皇岛首秦金属材料有限公司 | A kind of method for meeting the production of RH stoves with converter waste heat steam completely |
| CN110275461A (en) * | 2018-03-17 | 2019-09-24 | 杭州恒勋能源科技有限公司 | A kind of joint steam supplying device and its method of operation |
| CN111607687A (en) * | 2020-04-30 | 2020-09-01 | 邯郸钢铁集团有限责任公司 | Energy-saving device and method for improving steam quality of steelmaking RH refining furnace |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20180104 |