CN202322899U - Intelligent water supply device for steel converter steam drum - Google Patents
Intelligent water supply device for steel converter steam drum Download PDFInfo
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- CN202322899U CN202322899U CN2011204623840U CN201120462384U CN202322899U CN 202322899 U CN202322899 U CN 202322899U CN 2011204623840 U CN2011204623840 U CN 2011204623840U CN 201120462384 U CN201120462384 U CN 201120462384U CN 202322899 U CN202322899 U CN 202322899U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 title 1
- 239000010959 steel Substances 0.000 title 1
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000009628 steelmaking Methods 0.000 claims abstract description 11
- 239000000725 suspension Substances 0.000 claims 1
- 238000005339 levitation Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 239000008234 soft water Substances 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- Y02P10/25—Process efficiency
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
本实用新型公开了一种炼钢转炉汽包智能供水装置,主要由除氧器水箱、驱动元件、炉汽包，设置在炉汽包上的外部检测元件构成，外部检测元件主要由磁悬浮液位计、差压变送器、连接管式电接点构成；驱动元件主要由水泵电机、电动放散阀组成；除氧器水箱和外部检测元件之间通过管道连接，管道上设有水泵电机，水泵电机与除氧器水箱之间的管道上设有闸阀和调节阀。水泵电机和炉汽包之间的管道上还设有止回阀。炉汽包上还设有压力表和安全放散阀。本实用新型能够消除假水位的干扰，提高操作精确度，提高汽包安全性能，也能够克服当前大转炉检测控制繁琐和维修维护不便，以及能耗高的缺陷，始终保持汽包供水的定量化。
The utility model discloses an intelligent water supply device for steelmaking converter steam drum, which is mainly composed of a deaerator water tank, a driving element, a furnace steam drum, and an external detection element arranged on the furnace steam drum. The external detection element is mainly composed of a magnetic levitation liquid level Meter, differential pressure transmitter, connecting pipe-type electrical contacts; the driving element is mainly composed of a water pump motor and an electric relief valve; the water tank of the deaerator and the external detection element are connected by a pipeline, and the pipeline is equipped with a water pump motor and a water pump motor. A gate valve and a regulating valve are provided on the pipeline between the deaerator and the water tank. A check valve is also arranged on the pipeline between the water pump motor and the furnace steam drum. The furnace steam drum is also equipped with a pressure gauge and a safety relief valve. The utility model can eliminate the interference of false water level, improve the operation accuracy, improve the safety performance of the steam drum, and can also overcome the defects of cumbersome detection and control, inconvenient maintenance and high energy consumption of the current large converter, and always maintain the quantitative water supply of the steam drum .
Description
技术领域 technical field
本实用新型涉及转炉汽包供水装置，尤其涉及一种炼钢转炉汽包智能供水装置。 The utility model relates to a water supply device for a steam drum of a converter, in particular to an intelligent water supply device for a steam drum of a steelmaking converter.
背景技术 Background technique
冶金系统的炼钢环节，在转炉吹炼过程中产生大量1600℃左右的高温烟气，在进入除尘系统前，必须先经过汽化冷却烟道，烟道锅炉管内的软水通过与烟气进行热交换而汽化，汽化产生的汽水混合物进入汽包，经过汽水分离器的作用，对软水进行预热并承载转炉冶炼所需软水的循环，从而保障转炉正常生产。而对于汽包的供水系统，由于在炼钢过程中液面被动大，供水量和供水时间很难控制，不合理的液位不仅影响到稳定运行，更直接威胁到安全生产。传统操作中，液位完全由人工操控，控制难度较大，若液位过高会淹没上升管的管口，并倒灌于上升管，使汽包造成一定程度的喘振现象，烟道的上升管阻力增大，冷却水循环不畅，致使寿命缩短。供水泵的电机起动方式多采用直接启动方式，水泵启动频繁，对设备冲击大，设备磨损较快，故障率较高，缩短设备使用寿命，致使设备的维修量增加和备件消耗成本的升高。传统水位控制采用人工目视法操控，其控制精度低，存在供水的超前或滞后，尤其汽包在低水位，供水操作的滞后极易产生安全事故，可能会发生汽包爆炸或烟道崩裂，同时也造成介质能耗的浪费。对于当前大容量的转炉汽包供水系统，其设备结构较为复杂，控制信号较多，故障点相对就较多，维护与维修较繁琐，故障处理的效率相对受到影响。无论小容量或大容量的转炉，其液位检测不外乎有电接点和磁浮子的水位检测方式，从安全和实用角度出发，这两种水位检测方式误差相对较大，因而实际供水中仍然依赖于操作工的经验。 In the steelmaking link of the metallurgical system, a large amount of high-temperature flue gas of about 1600 °C is produced during the converter blowing process. Before entering the dust removal system, it must first pass through the vaporization cooling flue, and the soft water in the flue boiler tube exchanges heat with the flue gas. And vaporization, the steam-water mixture produced by vaporization enters the steam drum, and through the function of the steam-water separator, the soft water is preheated and carries the circulation of soft water required for converter smelting, so as to ensure the normal production of the converter. As for the water supply system of the steam drum, due to the passive large liquid level in the steelmaking process, it is difficult to control the water supply volume and water supply time. Unreasonable liquid level not only affects stable operation, but also directly threatens safe production. In traditional operation, the liquid level is completely controlled manually, which is difficult to control. If the liquid level is too high, it will submerge the nozzle of the riser pipe and pour back into the riser pipe, causing a certain degree of surge phenomenon in the steam drum and the rise of the flue. Pipe resistance increases, cooling water circulation is not smooth, resulting in shortened life. The motor starting method of the water supply pump mostly adopts the direct starting method. The water pump starts frequently, which has a great impact on the equipment, wears out the equipment quickly, has a high failure rate, shortens the service life of the equipment, and increases the maintenance amount of the equipment and the consumption cost of spare parts. The traditional water level control is controlled by manual visual method, its control accuracy is low, and there is an advance or lag of water supply, especially when the steam drum is at a low water level, the lag of water supply operation is very likely to cause safety accidents, and the steam drum may explode or the flue may burst. At the same time, it also causes waste of medium energy consumption. For the current large-capacity converter steam drum water supply system, its equipment structure is relatively complex, there are many control signals, relatively many fault points, maintenance and repair are cumbersome, and the efficiency of fault handling is relatively affected. Regardless of the converter with small capacity or large capacity, the liquid level detection is nothing more than the water level detection method with electric contacts and magnetic floats. From the perspective of safety and practicality, the error of these two water level detection methods is relatively large, so the actual water supply is still still Rely on operator experience.
实用新型内容 Utility model content
有鉴于此,本实用新型的目的是提供一种能够自动实现供水、控制水量使用的目的，自动化程度高，操作简便的炼钢转炉汽包智能供水装置。 In view of this, the purpose of this utility model is to provide a steelmaking converter drum intelligent water supply device that can automatically realize the purpose of water supply and control the use of water, has a high degree of automation and is easy to operate.
一种炼钢转炉汽包智能供水装置主要由除氧器水箱、驱动元件、炉汽包，设置在炉汽包上的外部检测元件构成，外部检测元件主要由磁悬浮液位计、差压变送器、连接管式电接点构成；驱动元件主要由水泵电机、电动放散阀组成；除氧器水箱和外部检测元件之间通过管道连接，管道上设有水泵电机，水泵电机与除氧器水箱之间的管道上设有闸阀和调节阀。 An intelligent water supply device for a steelmaking converter steam drum is mainly composed of a deaerator water tank, a driving element, a furnace steam drum, and an external detection element arranged on the furnace steam drum. The external detection element is mainly composed of a magnetic levitation level gauge, a differential pressure transmitter The drive element is mainly composed of a water pump motor and an electric discharge valve; the water tank of the deaerator and the external detection element are connected by a pipeline, and the water pump motor is installed on the pipeline, and the connection between the water pump motor and the water tank of the deaerator There are gate valves and regulating valves on the pipelines between them.
水泵电机和炉汽包之间的管道上还设有止回阀。 A check valve is also arranged on the pipeline between the water pump motor and the furnace steam drum.
炉汽包上还设有压力表和安全放散阀。 The furnace steam drum is also equipped with a pressure gauge and a safety relief valve.
炉汽包至少为三个。 There are at least three furnace steam drums.
磁悬浮液位计检测到的汽包液位呈双色直观显示，通过摄像装置将其显示的液位传输到岗位人员操作间；连接管电接点发出水位信号可以引入控制系统，通过程序，直接发出声光报警信号，可以做为操作人员的辅助信息；连通管静压式液位检测装置，通过检测汽包内上下指定部位的压力差别，经过差压变送器传输4-20mA的电流做为液位信号进入控制系统。 The liquid level of the steam drum detected by the magnetic levitation level gauge is directly displayed in two colors, and the displayed liquid level is transmitted to the operator's operation room through the camera device; the water level signal sent by the electrical contact of the connecting pipe can be introduced into the control system, and the sound can be directly emitted through the program. The light alarm signal can be used as auxiliary information for the operator; the static pressure liquid level detection device of the connecting pipe detects the pressure difference between the upper and lower designated parts in the steam drum, and transmits a 4-20mA current through the differential pressure transmitter as the liquid level detection device. The bit signal enters the control system.
本实用新型技术方案的积极效果是： The positive effect of the technical solution of the utility model is:
能够消除假水位的干扰，提高操作精确度，提高汽包安全性能，也能够克服当前大转炉检测控制繁琐和维修维护不便，以及能耗高的缺陷，始终保持汽包供水的定量化。 It can eliminate the interference of false water level, improve the operation accuracy, and improve the safety performance of the steam drum. It can also overcome the defects of cumbersome detection and control, inconvenient maintenance and high energy consumption of the current large converter, and always maintain the quantitative water supply of the steam drum.
附图说明： Description of drawings:
下面结合附图对本实用新型做进一步的说明： Below in conjunction with accompanying drawing, the utility model is further described:
图1是本实用新型的结构示意图。 Fig. 1 is the structural representation of the utility model.
具体实施方式： Detailed ways:
由图1可以看出，本炼钢转炉汽包智能供水装置，主要由除氧器水箱、驱动元件、三个炉汽包，设置在炉汽包上的外部检测元件构成，外部检测元件主要由磁悬浮液位计、差压变送器、连接管式电接点构成；驱动元件主要由水泵电机、电动放散阀组成；除氧器水箱和外部检测元件之间通过管道连接，管道上设有水泵电机，水泵电机与除氧器水箱之间的管道上设有闸阀和调节阀。 It can be seen from Figure 1 that the intelligent water supply device for steelmaking converter steam drum is mainly composed of deaerator water tank, driving components, three furnace steam drums, and external detection elements arranged on the furnace steam drum. The external detection elements are mainly composed of It consists of a magnetic levitation level gauge, a differential pressure transmitter, and connecting pipe-type electric contacts; the driving element is mainly composed of a water pump motor and an electric relief valve; the water tank of the deaerator and the external detection element are connected by a pipeline, and the pipeline is equipped with a water pump motor , The pipeline between the water pump motor and the deaerator tank is provided with a gate valve and a regulating valve.
由图1还可以看出，水泵电机和炉汽包之间的管道上还设有止回阀。 It can also be seen from Figure 1 that a check valve is also provided on the pipeline between the water pump motor and the furnace steam drum.
由图1还可以看出，炉汽包上还设有压力表和安全放散阀。 It can also be seen from Figure 1 that there are also pressure gauges and safety relief valves on the furnace steam drum.
汽包水位检测过程：第一路通过磁悬浮液位计检测到的汽包液位呈双色显示，由于其安装在炉汽包本体上，现场通过摄像装置将其显示的液位传输到岗位人员操作间；第二路通过电接点发出水位信号可以引入控制系统，通过程序，直接发出声光报警信号，可以做为操作人员的辅助信息；第三路为连通管静压式液位检测装置，通过检测炉汽包内上下指定部位的压力差别，经过差压变送器传输4-20mA的电流做为液位信号进入控制系统。此检测方式不受炉汽包内沸腾水位的影响，可以准确地检测炉汽包内水位。 Drum water level detection process: the first way through the magnetic levitation liquid level gauge to detect the steam drum liquid level is displayed in two colors, because it is installed on the furnace steam drum body, the liquid level displayed by the camera device is transmitted to the post personnel for operation The second channel sends out a water level signal through the electric contact, which can be introduced into the control system. Through the program, the sound and light alarm signal can be sent directly, which can be used as auxiliary information for the operator; the third channel is a connecting pipe static pressure liquid level detection device. Detect the pressure difference between the upper and lower specified parts in the furnace steam drum, and transmit the 4-20mA current through the differential pressure transmitter as the liquid level signal into the control system. This detection method is not affected by the boiling water level in the furnace drum, and can accurately detect the water level in the furnace drum.
通过大量数据分析和测试，供水模式采用变频器驱动水泵，间断直接供水运行模式。 Through a large amount of data analysis and testing, the water supply mode adopts the frequency converter to drive the water pump, and the intermittent direct water supply operation mode.
控制模式上，在水位检测的基础上，引入流量做为控制参数，同时结合上水时间的经验值进行炉汽包上水的控制，虽然没有三冲量控制方式精确，但是就目前的运行需求和其他同类型企业运行经验可知，此控制模式最为实用。 In the control mode, on the basis of water level detection, the flow rate is introduced as a control parameter, and at the same time, the water filling control of the furnace steam drum is carried out in combination with the empirical value of the water filling time. The operating experience of other similar enterprises shows that this control mode is the most practical.
操作模式安全简单实用，采用自动控制、上位机手动/自动操作、配电柜柜门按钮手动操作三种种操作控制方式，而且配电柜门操作具有最优先行。 The operation mode is safe, simple and practical. It adopts three operation control methods: automatic control, upper computer manual/automatic operation, and manual operation of the power distribution cabinet door button, and the operation of the power distribution cabinet door has the highest priority.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011204623840U CN202322899U (en) | 2011-11-21 | 2011-11-21 | Intelligent water supply device for steel converter steam drum |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204623840U CN202322899U (en) | 2011-11-21 | 2011-11-21 | Intelligent water supply device for steel converter steam drum |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937289A (en) * | 2012-11-12 | 2013-02-20 | 鞍钢集团工程技术有限公司 | Method and device for saving water and energy of converter waste heat boiler |
| CN104073590A (en) * | 2014-07-11 | 2014-10-01 | 济钢集团有限公司 | Method for controlling liquid level of steam pocket in smelting by converter |
| CN105423278A (en) * | 2015-12-25 | 2016-03-23 | 华北电力科学研究院有限责任公司 | Whole-process control system for boiler water level |
| CN110004266A (en) * | 2019-04-30 | 2019-07-12 | 首钢京唐钢铁联合有限责任公司 | Water supply pressure control method and system |
-
2011
- 2011-11-21 CN CN2011204623840U patent/CN202322899U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937289A (en) * | 2012-11-12 | 2013-02-20 | 鞍钢集团工程技术有限公司 | Method and device for saving water and energy of converter waste heat boiler |
| CN104073590A (en) * | 2014-07-11 | 2014-10-01 | 济钢集团有限公司 | Method for controlling liquid level of steam pocket in smelting by converter |
| CN104073590B (en) * | 2014-07-11 | 2016-03-30 | 济钢集团有限公司 | A kind of converter smelting liquid level of steam drum control method |
| CN105423278A (en) * | 2015-12-25 | 2016-03-23 | 华北电力科学研究院有限责任公司 | Whole-process control system for boiler water level |
| CN110004266A (en) * | 2019-04-30 | 2019-07-12 | 首钢京唐钢铁联合有限责任公司 | Water supply pressure control method and system |
| CN110004266B (en) * | 2019-04-30 | 2021-11-05 | 首钢京唐钢铁联合有限责任公司 | Water supply pressure control method and system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20191121 |