CN201501890U - Automatic control system for blast-furnace cooling water - Google Patents
Automatic control system for blast-furnace cooling water Download PDFInfo
- Publication number
- CN201501890U CN201501890U CN2009201284749U CN200920128474U CN201501890U CN 201501890 U CN201501890 U CN 201501890U CN 2009201284749 U CN2009201284749 U CN 2009201284749U CN 200920128474 U CN200920128474 U CN 200920128474U CN 201501890 U CN201501890 U CN 201501890U
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- water
- blast
- gathering device
- control system
- furnace
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Abstract
The utility model discloses an automatic control system for blast-furnace cooling water. The system comprises a water pump power supply I, a water pump I, a frequency converter I and a water-pressure collecting device I, wherein the water pump power supply I, the frequency converter I, the water pump I and the water-pressure collecting device I are connected in series in sequence to form an automatic control main branch for the cooling water; a water outlet of the water-pressure collecting device I is communicated with a blast-furnace cooling water device; and an electrical signal output terminal of the water-pressure collecting device I is connected with the interior of the frequency converter I. The automatic control system for the blast-furnace cooling water provided by the utility model utilizes the water-pressure collecting device I to collect the change of water pressure, which is further input to the frequency converter in the form of an electrical signal; and the rotational speed of the water pump I is adjusted through the frequency converter in a timely manner to constantly keep the exhaust water of the water pump I under a stable pressure, so that the cooling water in the blast-furnace cooling water device reaches predetermined cooling strength, the water consumption and the energy consumption are reduced, and the high efficiency and the energy conservation of blast-furnace water cooling are realized; and meanwhile, the control system adopts the frequency converter to automatically adjust the speed, so that the whole system runs reliably and is operated conveniently.
Description
Technical field
The utility model relates to a kind of water coolant automatic control system, relates in particular to a kind of blast-furnace cooled water automatic control system that is applicable in the metallurgy industry.
Background technology
Between high stove outer covering and refractory materials, be provided with one deck refrigerating unit, in refrigerating unit the recirculated water of input certain pressure to high stove outer covering, stretch into air port in the blast furnace and the slag notch of blast furnace is protected.If the hypotony of the recirculated cooling water in the refrigerating unit, water coolant is poor to the cooling performance of high stove outer covering, have great potential safety hazard, have a strong impact on the work-ing life of blast furnace, the slag notch that stretches into air port in the blast furnace and blast furnace simultaneously also can Yin Wendu too high and scaling loss; If the hypertonia of the recirculated cooling water in the refrigerating unit has strengthened the wind to blast furnace, the cooling of cinder notch, but can cause cooling apparatus to damage, influence pig iron smelting.
In the prior art, the blast-furnace cooled water system mainly adopts water pump to supply water in the refrigerating unit of blast furnace, the pressure size of the recirculated cooling water in the cooling equipment for blast furnace depends on water pump fully, the rotating speed of water pump can't hydraulic pressure size as required automatically adjust, cause the pressure of water pump water outlet to be higher than the steady pressure of regulation sometimes, sometimes be lower than the steady pressure of regulation, thereby can not be stable in cooling equipment for blast furnace, supply water, the air port in the blast furnace and the slag notch of blast furnace can't obtain stable cooling, also waste electric energy simultaneously.
Therefore, need a kind of blast-furnace cooled water automatic control system, can be stable supply water in cooling equipment for blast furnace neither influences blase furnace cast iron and smelts, and can make the interior air port of blast furnace and the slag notch of blast furnace obtain stable cooling simultaneously.
The utility model content
In view of this, the utility model provides a kind of blast-furnace cooled water automatic control system, and can be stable supply water in cooling equipment for blast furnace neither influences blase furnace cast iron and smelt, and can make the interior air port of blast furnace and the slag notch of blast furnace obtain stable cooling simultaneously.
The blast-furnace cooled water automatic control system that the utility model provides, comprise pump power, water pump I, frequency transformer I and water pressure gathering device I, described pump power, frequency transformer I, water pump I and water pressure gathering device I are connected in series successively and form the water coolant main branch road of control automatically, the water outlet of described water pressure gathering device I is communicated with the blast-furnace cooled water device, and the electrical signal of water pressure gathering device I inserts frequency transformer I.
Further, also comprise frequency transformer II, water pump II and water pressure gathering device II, described pump power, frequency transformer II, water pump II and water pressure gathering device II are connected in series the formation water coolant successively and control emergency bypass automatically, the water outlet of described water pressure gathering device II is communicated with the blast-furnace cooled water device, and the electrical signal of water pressure gathering device II inserts frequency transformer II;
Further, described water pressure gathering device I and water pressure gathering device II are made up of pressure transmitter and/or flow sensor respectively.
The beneficial effects of the utility model are: the blast-furnace cooled water automatic control system of the utility model structure adopts and be connected in series frequency transformer between pump power and water pump I, water outlet end at water pump I is provided with water pressure gathering device I, water pressure gathering device I gathers the variation of water pressure and with the form input converter of electrical signal, in time adjust the rotating speed of water pump I by frequency transformer, make the water outlet of water pump I remain pressure stable, thereby ensure that water coolant reaches predetermined cooling intensity, reduce water consumption, cut down the consumption of energy, realize that blast furnace water-cooling is energy-efficient, this Controlling System adopts frequency transformer automatic speed regulation simultaneously, makes total system reliable, and is easy to operate.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Accompanying drawing is a structural representation of the present utility model, and as shown in the figure: the blast-furnace cooled water automatic control system comprises pump power, water pump I, frequency transformer I and water pressure gathering device I.Water pressure gathering device I adopts pressure sensor in the present embodiment.Pump power, frequency transformer I, water pump I and pressure transmitter are connected in series successively and form the water coolant main branch road 1 of control automatically, and the water outlet of pressure transmitter is communicated with the blast-furnace cooled water device, and the electrical signal of water pressure gathering device I inserts frequency transformer I.Water pressure by water pressure gathering device I is during greater than set(ting)value, and water pressure gathering device I just produces certain electrical signal, and electrical signal input converter I reduces the rotating speed of water pump I by frequency transformer I, thereby reduces the discharge pressure of water pump I; As the water pressure by water pressure gathering device I during less than set(ting)value, the certain electrical signal of the same generation of water pressure gathering device I, electrical signal input converter I, improve the rotating speed of water pump I by frequency transformer I, thereby increase the discharge pressure of water pump I, thereby realize water pressure gathering device I full-automatic tracking, frequency transformer I controls automatically, guarantees the steady pressure of blast-furnace tuyere and cinder notch circulation tube internal cooling water.
Present embodiment also adopts frequency transformer II, water pump II and water pressure gathering device II.Water pressure gathering device II adopts pressure sensor in the present embodiment.Pump power, frequency transformer II, water pump II and water pressure gathering device II are connected in series the formation water coolant successively and control emergency bypass 2 automatically, the water outlet of water pressure gathering device II is communicated with the blast-furnace cooled water device, and the electrical signal of water pressure gathering device II inserts frequency transformer II.When one of them branch road of water coolant breaks down, another water coolant branch road enters state of a control automatically, guarantees that cooling water system controls under the water supply state all the time automatically, to guarantee the stable cooling of blast-furnace tuyere and cinder notch.
Water pressure gathering device I and water pressure gathering device II also can adopt flow sensor, and perhaps while pressure transmitter and flow sensor only need just can realize the purpose of this utility model to the electrical signal input converter of transmitter.That the water pressure gathering device I of present embodiment and water pressure gathering device II all adopt is simple in structure, it is general to use, obtain easy pressure transmitter.
Certainly, also can in said structure, add the PLC controller, the PLC controller is serially connected between pump power and the frequency transformer, the electrical signal input PLC controller of pressure transmitter, output frequency by PLC controller control of conversion device, thereby regulate the rotating speed of water pump, can reach equally the blast-furnace cooled water device is supplied water, the purpose of stable cooling blast-furnace tuyere and cinder notch.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. blast-furnace cooled water automatic control system, comprise pump power and water pump I, it is characterized in that: also comprise frequency transformer I and water pressure gathering device I, described pump power, frequency transformer I, water pump I and water pressure gathering device I are connected in series successively and form water coolant control main branch road (1) automatically, the water outlet of described water pressure gathering device I is communicated with the blast-furnace cooled water device, and the electrical signal of water pressure gathering device I inserts frequency transformer I.
2. blast-furnace cooled water automatic control system according to claim 1, it is characterized in that: also comprise frequency transformer II, water pump II and water pressure gathering device II, described pump power, frequency transformer II, water pump II and water pressure gathering device II are connected in series the formation water coolant successively and control emergency bypass (2) automatically, the water outlet of described water pressure gathering device II is communicated with the blast-furnace cooled water device, and the electrical signal of water pressure gathering device II inserts frequency transformer II.
3. blast-furnace cooled water automatic control system according to claim 2 is characterized in that: described water pressure gathering device I and water pressure gathering device II are made up of pressure transmitter and/or flow sensor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201284749U CN201501890U (en) | 2009-08-14 | 2009-08-14 | Automatic control system for blast-furnace cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201284749U CN201501890U (en) | 2009-08-14 | 2009-08-14 | Automatic control system for blast-furnace cooling water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201501890U true CN201501890U (en) | 2010-06-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201284749U Expired - Fee Related CN201501890U (en) | 2009-08-14 | 2009-08-14 | Automatic control system for blast-furnace cooling water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201501890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589856A (en) * | 2013-11-28 | 2014-02-19 | 广东韶钢松山股份有限公司 | Heating furnace cooling control system and control method |
-
2009
- 2009-08-14 CN CN2009201284749U patent/CN201501890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589856A (en) * | 2013-11-28 | 2014-02-19 | 广东韶钢松山股份有限公司 | Heating furnace cooling control system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20130814 |