CN213089854U - Oxygen-enriched combustion adjusting system - Google Patents
Oxygen-enriched combustion adjusting system Download PDFInfo
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- CN213089854U CN213089854U CN202021395285.0U CN202021395285U CN213089854U CN 213089854 U CN213089854 U CN 213089854U CN 202021395285 U CN202021395285 U CN 202021395285U CN 213089854 U CN213089854 U CN 213089854U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to an oxygen boosting burning governing system, it includes that both ends connect oxygen house steward, hot-blast house steward's oxygen supply pipe respectively, be equipped with pressure regulating valves, flowmeter on the oxygen supply pipe, the pressure regulating valves includes self-operated air-vent valve and pneumatic film air-vent valve, flowmeter, self-operated air-vent valve, pneumatic film air-vent valve are followed oxygen supply pipe's direction of delivery sets gradually. The utility model discloses can guarantee that the flow and the pressure of supply oxygen can in time change along with the change of air quantity and pressure, realize oxygen boosting burning last with stable, reinforce the combustion effect, reach fuel economy, reduce the purpose that the flue gas volume and pollutant discharged.
Description
Technical Field
The utility model relates to a metallurgical heat energy engineering field especially relates to an oxygen boosting burning governing system, specifically is an adjust technique of oxygen safety and stability supply in guaranteeing industrial furnace oxygen boosting burning technology.
Background
Air combustion supporting is used for all industrial heating processes as a traditional combustion technology, and after conventional combustion is changed into oxygen-enriched combustion, the air combustion supporting method has obvious benefits, can improve the combustion heat efficiency, increase the operation rate, and reduce the smoke amount and pollutant emission. Along with the increase of the oxygen concentration, the fuel requirement is reduced, the required air quantity is also reduced, meanwhile, the flue gas quantity generated by combustion is reduced, and the fuel saving effect and the pollutant emission reduction are obvious.
Oxygen-enriched air blasting generally employs mixing of air with oxygen, commonly referred to as low oxygen enrichment or premixed oxygen enrichment. In the oxygen injection process, because of the strong combustion-supporting property of oxygen, the whole supply system has certain potential safety hazard in use, and the flow and the pressure of mixed oxygen need to be timely changed along with the change of air quantity and pressure in a proper range, so that the continuity and the effect of oxygen-enriched combustion are ensured.
The utility model relates to an oxygen supply system can be under the prerequisite of ensureing safe air feed, through certain adjusting means, guarantees that the flow and the pressure of supply oxygen can in time change along with the change of air quantity and pressure, realizes continuation and stability of oxygen boosting burning, strengthens the combustion effect, reaches fuel economy, reduces the purpose of flue gas volume and pollutant discharge, applicable in the great operating mode of industrial furnace air feed system pressure and flow fluctuation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an oxygen boosting burning governing system can guarantee that the flow and the pressure of supply oxygen can in time change along with the change of air quantity and pressure, realizes oxygen boosting burning last and stable, strengthens the combustion effect, reaches fuel economy, reduces the purpose that the amount of smoke and pollutant discharged.
The utility model provides a technical scheme that its technical problem adopted is: oxygen boosting combustion governing system, including the oxygen supply pipe way that oxygen house steward, hot-blast house steward were connected respectively at both ends, be equipped with pressure regulating valves, flowmeter on the oxygen supply pipe way, pressure regulating valves includes self-operated air-vent valve and pneumatic film air-vent valve, flowmeter, self-operated air-vent valve, pneumatic film air-vent valve are followed oxygen supply pipe's direction of delivery sets gradually.
In a preferred embodiment of the oxycombustion governing system provided by the present invention, the oxygen supply pipeline is provided with a bleeding pipeline before and after the valve of the self-operated pressure regulating valve, wherein the bleeding pipeline before the valve is provided with a bleeding valve, and the bleeding pipeline after the valve is provided with a safety valve.
In a preferred embodiment of the oxycombustion governing system provided by the present invention, the oxygen supply pipeline is provided with a first stop valve and a second stop valve respectively in front of and behind the release pipeline in front of the valve of the self-operated pressure regulating valve, and the flow meter is disposed behind the valve of the second stop valve.
In a preferred embodiment of the present invention, an oxygen filter is further disposed between the flow meter and the self-operated pressure regulating valve.
In a preferred embodiment of the oxygen-enriched combustion regulating system provided by the present invention, the oxygen supply pipeline is further provided with a quick shut-off valve and a check valve in sequence after the valve of the pneumatic membrane pressure regulating valve.
In a preferred embodiment of the oxycombustion regulation system of the present invention, the quick shut-off valve is interlocked with the pipeline pressure and the hot air pipeline blower after the pneumatic membrane pressure-regulating valve on the oxygen supply pipeline.
In a preferred embodiment of the present invention, an oxygen purge line is disposed on the oxygen supply line after the valve of the first stop valve and before the valve of the pneumatic membrane pressure regulating valve, and a purge valve is disposed on the oxygen purge line.
In a preferred embodiment of the present invention, the oxygen supply line is provided with a first oxygen flame arrester after the valve of the first stop valve, and a second oxygen flame arrester is provided between the quick stop valve and the check valve.
Compared with the prior art, the utility model provides an oxygen boosting burning governing system's beneficial effect is: the utility model discloses a safe pressure regulating of pressure regulating valves can guarantee that the flow and the pressure of supply oxygen can in time change along with the change of air quantity and pressure, has realized under the great operating mode of hot-blast main flow and pressure oscillation, and the oxygen boosting combustion system can the synchronous automatically regulated function of safety and stability, has guaranteed that oxygen boosting burning lasts and stabilizes, has reinforceed the combustion effect, has reached fuel economy, has reduced the purpose of flue gas volume and pollutant discharge.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
FIG. 1 is a schematic structural diagram of an oxycombustion regulation system provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1, the oxygen-enriched combustion regulation system of the present embodiment includes an oxygen supply pipeline 1 having two ends respectively connected to an oxygen main pipe and a hot air main pipe, the oxygen supply pipeline 1 is provided with a pressure regulating valve set and a flow meter 7, the pressure regulating valve set includes a self-operated pressure regulating valve 9 and a pneumatic film pressure regulating valve 12, and the flow meter 7, the self-operated pressure regulating valve 9 and the pneumatic film pressure regulating valve 12 are sequentially arranged along a conveying direction of the oxygen supply pipeline 1.
The flow meter of the embodiment is responsible for the oxygen flow measurement of the whole system and is an important parameter basis of the whole system regulation means; the self-operated pressure regulating valve reduces and stabilizes the pressure of oxygen from the oxygen pipe network to a set pressure range required before entering the pneumatic membrane pressure regulating valve; the pneumatic membrane pressure regulating valve is used for proportionally regulating the oxygen inlet amount according to the hot air flow, and simultaneously regulating the oxygen pressure to the pressure close to a hot air main pipe, so that the stability of the oxygen supply pressure and flow is ensured, and during specific regulation: the pneumatic film pressure regulating valve automatically carries out proportional regulation on the oxygen intake according to the hot air flow, simultaneously regulates the oxygen pressure, keeps the oxygen pressure behind the valve close to (slightly higher than) the hot air pressure basically, ensures the safety and stability of oxygen mixing into the hot air pipeline, and realizes the safe and stable synchronous automatic regulation function of the oxygen-enriched combustion system under the working conditions of large hot air pipeline flow and pressure fluctuation.
Example two
In addition to the first embodiment, in order to realize safe pressure regulation, the oxygen supply pipeline 1 of the present embodiment is provided with a relief pipeline before and after the self-operated pressure regulating valve 9, wherein the relief pipeline before the valve is provided with a relief valve 5, and the relief pipeline after the valve is provided with a safety valve 10.
The arrangement of the bleed valve in this embodiment is responsible for bleeding of the oxygen pipeline in front of the regulating valve group; due to the arrangement of the safety valve, when the pipeline behind the self-operated pressure regulating valve is in overpressure, the safety valve can jump in time to release overpressure gas in the oxygen supply pipeline, and the safety of a subsequent pipeline and a regulating system is guaranteed.
Preferably, in the self-operated pressure regulating valve 9 of the present embodiment, the two bleeding pipes before and after the valve are collected and then collectively processed.
EXAMPLE III
In addition to the second embodiment, the oxygen supply pipe 1 of the present embodiment is provided with the first stop valve 2 and the second stop valve 6 respectively before and after the valve front relief pipe of the self-operated pressure regulating valve 9, and the flow meter 7 is provided after the valve of the second stop valve 6. The first stop valve of the embodiment is used for controlling the oxygen supply of the whole system; the second stop valve is used for controlling the oxygen supply of the regulating valve group.
Preferably, an oxygen filter 8 is further arranged between the flowmeter 7 and the self-operated pressure regulating valve 9. This embodiment sets up oxygen filter can filter the entering the oxygen of pressure regulating valves group guarantees that precision equipment can not cause because of the impurity that contains in the oxygen and blocks up, damage etc. in the pressure regulating valves group.
Example four
In addition to the second or third embodiment, a quick cut-off valve 13 and a check valve 15 are further sequentially disposed on the oxygen supply pipeline 1 of the present embodiment after the valve of the pneumatic membrane pressure regulating valve 12.
The check valve of the embodiment can avoid the backflow of gas of the hot air main pipe of the industrial furnace caused by the over-low pressure of the pipeline of the system; the quick cut-off valve can be used for emergency cut-off, an alarm is given when the pressure behind the pneumatic film pressure regulating valve is close to a set value, and the quick cut-off valve is cut off emergently when a fan which is smaller than the set value or is used for conveying oxygen is shut down, so that the oxygen supply is stopped, and the safety of the oxygen supply is ensured.
Preferably, the quick cut-off valve of the present embodiment is interlocked with the pipeline pressure after the pneumatic membrane pressure regulating valve on the oxygen supply pipeline and the hot air pipeline fan.
EXAMPLE five
On the basis of any one of the second to fourth embodiments, an oxygen purge pipeline is disposed on the oxygen supply pipeline 1 of this embodiment after the valve of the first stop valve 2 and before the valve of the pneumatic membrane pressure regulating valve 12, and purge valves, respectively a purge valve 3 and a purge valve 11, are disposed on the oxygen purge pipeline, and purge and replace the front oxygen pipeline of the regulating valve group and the rear oxygen pipeline of the self-operated pressure regulating valve, respectively, so as to ensure the safety of a pipeline system.
EXAMPLE six
In addition to any one of the second to fifth embodiments, the oxygen supply pipe 1 of the present embodiment is provided with a first oxygen damper 4 after the valve of the first stop valve 2, and a second oxygen damper 14 is provided between the quick stop valve 13 and the check valve 15. Fire arresters are arranged at the front and the rear of the adjusting system, so that flames caused by fire in the whole oxygen pipeline supply system are prevented from entering the system, and the danger of explosion caused by fire leakage of pipelines is avoided.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (8)
1. An oxygen-enriched combustion regulating system is characterized in that: the oxygen supply pipeline is characterized by comprising an oxygen supply pipeline, wherein two ends of the oxygen supply pipeline are respectively connected with an oxygen main pipe and a hot air main pipe, a pressure regulating valve group and a flowmeter are arranged on the oxygen supply pipeline, the pressure regulating valve group comprises a self-operated pressure regulating valve and a pneumatic film pressure regulating valve, and the flowmeter, the self-operated pressure regulating valve and the pneumatic film pressure regulating valve are sequentially arranged in the conveying direction of the oxygen supply pipeline.
2. An oxycombustion adjustment system according to claim 1, characterized in that: the oxygen supply pipeline is provided with a bleeding pipeline in front of the self-operated pressure regulating valve and behind the self-operated pressure regulating valve, wherein the bleeding pipeline in front of the self-operated pressure regulating valve is provided with a bleeding valve, and the bleeding pipeline behind the self-operated pressure regulating valve is provided with a safety valve.
3. An oxycombustion adjustment system according to claim 2, characterized in that: and a first stop valve and a second stop valve are respectively arranged on the oxygen supply pipeline in front of and behind a valve front diffusion pipeline of the self-operated pressure regulating valve, and the flow meter is arranged behind a valve of the second stop valve.
4. An oxycombustion adjustment system according to claim 3, characterized in that: an oxygen filter is also arranged between the flowmeter and the self-operated pressure regulating valve.
5. An oxycombustion adjustment system according to claim 3, characterized in that: and a quick cut-off valve and a check valve are sequentially arranged on the oxygen supply pipeline behind the valve of the pneumatic film pressure regulating valve.
6. An oxycombustion adjustment system according to claim 5, characterized in that: the quick cut-off valve is interlocked with the pipeline pressure behind the pneumatic film pressure regulating valve on the oxygen supply pipeline and the hot air pipeline fan.
7. An oxycombustion adjustment system according to claim 3, characterized in that: and an oxygen purging pipeline is arranged on the oxygen supply pipeline behind the valve of the first stop valve and in front of the valve of the pneumatic membrane pressure regulating valve, and a purging valve is arranged on the oxygen purging pipeline.
8. An oxycombustion adjustment system according to claim 5, characterized in that: and a first oxygen flame arrester is arranged on the oxygen supply pipeline behind the valve of the first stop valve, and a second oxygen flame arrester is arranged between the quick stop valve and the check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021395285.0U CN213089854U (en) | 2020-07-15 | 2020-07-15 | Oxygen-enriched combustion adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021395285.0U CN213089854U (en) | 2020-07-15 | 2020-07-15 | Oxygen-enriched combustion adjusting system |
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| Publication Number | Publication Date |
|---|---|
| CN213089854U true CN213089854U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021395285.0U Active CN213089854U (en) | 2020-07-15 | 2020-07-15 | Oxygen-enriched combustion adjusting system |
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| CN (1) | CN213089854U (en) |
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- 2020-07-15 CN CN202021395285.0U patent/CN213089854U/en active Active
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