CN217053582U - Water quantity balance control system for sintering and pelletizing production water - Google Patents
Water quantity balance control system for sintering and pelletizing production water Download PDFInfo
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- CN217053582U CN217053582U CN202220712131.2U CN202220712131U CN217053582U CN 217053582 U CN217053582 U CN 217053582U CN 202220712131 U CN202220712131 U CN 202220712131U CN 217053582 U CN217053582 U CN 217053582U
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Abstract
The utility model aims at solving the problem that the existing sintering pellet production process does not have an automatic water yield analysis and regulation system, and provides a water yield balance control system for sintering pellet production water. The utility model discloses a water quantity balance control system of water for sintered pellet production, which comprises a water pipeline for field production, a detecting instrument on the water pipeline for field production, a control device on the water pipeline for field production, a signal isolation and conversion system and a computer system; the detection instrument and the control equipment are respectively connected with a signal isolation conversion system, and the signal isolation conversion system is connected with a computer system. The whole system can realize real-time monitoring of the on-site production water condition and intelligent monitoring and adjustment of the sintered pellet water quantity.
Description
Technical Field
The utility model belongs to the technical field of the construction of sintered pellet mill, concretely relates to water balance control system of sintered pellet production water.
Background
In the process of sintering and pelletizing production, production water is a main energy medium for plant operation, and the efficiency of balanced utilization of water directly influences the operation cost of the plant. The production water comprises circulating water, consumed water and fire water, the system is complex, and the key problem of intelligent regulation and energy-saving efficiency increase of the water system is how to realize quantitative and reasonable control of various water sources.
At present, an automatic water analysis and regulation system is not provided in the process of producing the sintered pellets, so that research on water control in the process of producing the sintered pellets is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing sintering pellet production process does not have an automatic water yield analysis and regulation system, and provides a water yield balance control system for sintering pellet production water. The whole system can realize real-time monitoring of the on-site production water condition and intelligent monitoring and adjustment of the sintered pellet water quantity.
The technical scheme of the utility model is that the water quantity balance control system of the water for the sintered pellet production comprises a water pipeline for the field production, a detecting instrument on the water pipeline for the field production, a control device on the water pipeline for the field production, a signal isolation and conversion system and a computer system; the detection instrument and the control equipment are respectively connected with a signal isolation and conversion system, and the signal isolation and conversion system is connected with a computer system;
the water pipeline for on-site production comprises a cooling water pool, a new water replenishing pipeline arranged in the cooling water pool, a cooling water inlet main pipeline and a fire-fighting water pipeline which are separated from the cooling water pool and provided with water supply pumps, a device cooling water inlet pipeline and a cleaning water pipeline which are separated from the cooling water inlet main pipeline and are respectively connected with various levels of equipment in each workshop, a device cooling water outlet pipeline connected with various levels of equipment in each workshop, a return water pool clean return water pipeline connected with the device cooling water outlet pipeline, a return water pool connected with the return water pool clean return water pipeline, a hot water feeding pipe connected between the return water pool and the cooling tower, and a sewer pipe connected between the cooling tower and the cold water pool;
the detection instrument comprises a field temperature, pressure and flow instrument;
the control equipment comprises a field regulating valve, a switch valve and frequency conversion equipment;
the signal isolation and conversion system comprises an isolator and a circuit breaker.
Furthermore, the water balance control system and the computer system comprise a PLC system, a module and an upper computer which are connected through data signals.
Furthermore, in the water balance control system, the PLC system and the module are responsible for acquiring signals and issuing instructions, and the upper computer is responsible for displaying pictures and processing intelligent algorithm programs.
Compared with the prior art, the utility model has the advantages of:
1. the accurate monitoring and adjustment of the cooling water of each device are realized;
2. the water balance in the system is accurately calculated;
3. according to the water consumption and equipment energy consumption in the system, the lowest energy consumption operation of the system is automatically realized on the premise of ensuring the process production, and the energy is saved and the emission is reduced;
4. and according to the accurate solution of the consumption in the system, the automatic and accurate water supplement of the system is realized.
Drawings
FIG. 1 is a schematic view of a water pipeline and a detection device for on-site production of the utility model;
FIG. 2 is a connection relationship diagram of each part of the control system of the present invention;
fig. 3 is a flow chart of the water balance control method of the present invention.
Wherein, 1, the cooling water pool, 2, new water moisturizing pipeline, 3, the cooling tower, 4, the cooling water inlet main pipeline, 5, fire water pipeline, 6, the equipment cooling water inlet pipeline, 7, clean water pipeline, 8, the equipment cooling water outlet pipeline, 9, return water pool clean return water pipeline, 10, the return water pool, 11, the hot water supply pipe, 12, the downcomer, 13, the cooling water pool equipment, 14, the ordinary pressure water supply pump outlet equipment, 15, indoor and outdoor fire water pipeline equipment, 16, new water moisturizing pipeline equipment, 17, return water pool clean return water pipeline equipment, 18, hot water supply pipeline equipment, 19, equipment recirculated cooling water pipeline equipment at all levels.
Detailed Description
Example 1
A water quantity balance control system of water for sintered pellet production is disclosed, as shown in figure 1, and comprises a water pipeline for on-site production, a detecting instrument on the water pipeline for on-site production, a control device on the water pipeline for on-site production, a signal isolation and conversion system and a computer system; the detection instrument and the control equipment are respectively connected with a signal isolation conversion system, and the signal isolation conversion system is connected with a computer system;
the water pipeline for on-site production comprises a cooling water pool 1, a new water replenishing pipeline 2 arranged in the cooling water pool, a cooling water inlet main pipeline 4 and a fire-fighting water pipeline 5 which are separated from the cooling water pool and provided with a water supply pump, an equipment cooling water inlet pipeline 6 and a cleaning water pipeline 7 which are separated from the cooling water inlet main pipeline and are respectively connected with each level of equipment in each workshop, an equipment cooling water outlet pipeline 8 connected with each level of equipment in each workshop, a return water pool clean return water pipeline 9 connected with the equipment cooling water outlet pipeline, a return water pool 10 connected with the return water pool clean return water pipeline, a hot water supply pipe 11 connected between the return water pool and the cooling tower, and a sewer pipe 12 connected between the cooling tower and the cooling water pool;
the detection instrument comprises a field temperature, pressure and flow instrument;
the control equipment comprises a field regulating valve, a switch valve and frequency conversion equipment;
the signal isolation and conversion system comprises an isolator, a circuit breaker and a cabinet thereof, the computer system comprises a PLC system, a module and an upper computer, the PLC system, the module and the upper computer are connected through data signals, the PLC system and the module are responsible for acquiring signals and issuing instructions, and the upper computer is responsible for displaying pictures and processing intelligent algorithm programs.
The following specific examples are the water balance control system of a certain plant, and the hardware configuration of the system, as shown in fig. 1 and 2:
(1) on-site monitoring and control equipment
1. Normal pressure water supply pump outlet apparatus 14: temperature, pressure, flow monitoring and regulating valves. The specifications of various instruments are as follows:
| equipment symbol | Device name | Specification of |
| FE/FIT-001 | Electromagnetic flowmeter | Measuring range: 0-Xm 3/h power supply: 220VAC |
| PE/PT-001 | Pressure transmitter | Measuring range: supplying power under 0-1 MPa: 24VDC |
| TE-001 | Platinum thermal resistance | Measuring range: 0 to 100 DEG C |
| FV/FZ-001 | Electric regulating valve | Power supply: 220VAC |
The flow is used as a main detection and control target parameter, and the temperature and the pressure are used as equipment and process demand monitoring parameters. The range of the monitoring equipment can be adjusted according to the engineering condition.
2. Indoor and outdoor fire fighting water pipe equipment 15: and monitoring pressure and flow. The specifications of various instruments are as follows:
| equipment symbol | Device name | Specification of |
| FE/FIT-002 | Electromagnetic flowmeter | Measuring range: 0-Xm 3/h power supply: 220VAC |
| PE/PT-002 | Pressure transmitter | Measuring range: supplying power under 0-1 MPa: 24VDC |
| FE/FIT-003 | Electromagnetic flowmeter | Measuring range: 0-Xm 3/h power supply: 220VAC |
The flow is used as a water consumption monitoring parameter, and the pressure is used as a fire-fighting water pressure monitoring parameter. The range of the monitoring equipment can be adjusted according to the engineering condition.
3. New water replenishing pipeline equipment 16: flow monitoring and shutoff valves. The specifications of various instruments are as follows:
| equipment symbol | Device name | Specification of |
| FE/FIT-004 | Electromagnetic flowmeter | Measuring range: 0-Xm 3/h for power supply: 220VAC |
| HV/HZ-004 | Electric cut-off valve | Power supply: 220VAC |
The flow rate is used for monitoring the amount of the fresh water, and is a main parameter for supplementing and controlling the water amount in the system. The range of the monitoring equipment can be adjusted according to the engineering condition.
4. Return pond net return water pipe equipment 17: and monitoring temperature and flow. The specifications of each instrument are as follows:
| equipment symbol | Device name | Specification of |
| FE/FIT-005 | Electromagnetic flowmeter | Measuring range: 0-Xm 3/h for power supply: 220VAC |
| TE-005 | Platinum thermal resistance | Measuring range: 0 to 100 DEG C |
The flow is monitoring of the return water quantity of circulating water, and is a main monitoring parameter of the water consumption of cooling water in the system after passing through equipment, and the temperature is used as a monitoring parameter of the performance of the cooling water. The range of the monitoring equipment can be adjusted according to the engineering condition.
5. Hot water supply piping device 18: flow rate, temperature. The specifications of various instruments are as follows:
| device symbol | Device name | Specification of |
| HV/HZ-006 | Cooling tower adjusting device | Power supply: 380VAC, regulating cooling efficiency |
| TE-006 | Platinum thermal resistance | Measuring range: 0 to 100 DEG C |
| FE/FIT-006 | Electromagnetic flowmeter | Measuring range: 0-Xm 3/h power supply: 220VAC |
The flow is used as a main parameter of flow consumption in the cooling process, and the temperature measurement is used as a water replenishing adjusting parameter of the cooling tower. The electric regulating valve is used as a control measure for the amount of the fresh water. The range of the monitoring equipment can be adjusted according to the engineering condition.
6. The circulating cooling water pipeline 19 of each stage of equipment: temperature, pressure, flow monitoring and regulating valves. The specifications of various instruments are as follows:
the system comprises an electromagnetic flowmeter FE/FIT-101-FE/FIT-N01, an electric control valve FV/FZ-101-FV/FZ-N01, a water quantity adjusting means (the item is optional and is set when the water quantity is required to be finely adjusted) for the equipment water of each level, a temperature measuring TE-001-TE-N01, a temperature measuring TE-002-TE-N02 and a temperature measuring TE-003-TE-N03, wherein the electromagnetic flowmeter FE/FIT-007 is used for monitoring the water quantity of the workshop cleaning water.
7. Cooling water tank device 13: a liquid level meter. The specifications of each instrument are as follows:
| equipment symbol | Device name | Specification of |
| LE-001/LE-002 | Liquid level meter | Measuring range: supplying power by 0-5M: 24VDC |
Wherein, the liquid level meter is used as a liquid level control parameter of the cooling water pool.
(2) Signal isolation and conversion system configuration and function
The signal isolation and conversion system comprises a signal isolator, a distributor, a corresponding breaker and a corresponding cabinet. The system has the main function of transmitting signals of on-site instruments and control equipment to a computer system and performing isolation protection.
(3) Computer system configuration and functionality
As shown in the computer system of fig. 2, this section includes PLC systems, cabinets, switches, modules, upper computers, and the like. The PLC system and the module are responsible for acquiring signals and issuing instructions, and the upper computer is responsible for displaying pictures and processing intelligent algorithm programs.
The water balance control method for the water used in the sintered pellet production by adopting the system of the utility model adopts the monitoring-intelligent analysis-control-feedback method to control the water balance as shown in figure 3, and comprises the following steps:
step 1, obtaining detection parameters of a field detection instrument;
step 2, reducing the water consumption F of the system under the condition that the system meets the process production operation condition Consumption of The water quantity of pipelines at all levels is reduced, and the running cost of the water pump is saved;
2.1) calculating the total water quantity in the system according to the formulas (1) and (2);
F general assembly ＝∑F 004 -∑F 002 -∑F 003 -∑F 007 -∑F Consumption of (1)
F Consumption of ＝∑F 001 -∑F 006 (2)
F General assembly The total water amount in the system; f 004 For the amount of fresh water entering the system, F 002 Is the indoor fire-fighting water quantity F 003 Is outdoor fire-fighting waterAmount, F 007 For cleaning the water volume, F Consumption of Is the total consumption of circulating water in the system, F 001 The amount of the effluent of the cold water pool, F 006 The water inlet quantity of the cold water pool is the water inlet quantity of the cold water pool;
2.2) setting the opening degree of control equipment at the inlet and the outlet of each level of equipment on the field production water pipeline, detecting the temperature value of each level of equipment, and reducing the power consumption and the water consumption of the equipment;
specifically, the inlet and outlet temperatures of equipment at all levels are analyzed, the opening degree of a cooling water inlet regulating valve FV of each equipment is regulated according to the inlet and outlet temperatures of cooling water of the equipment at all levels, the real-time minimum water quantity of the total water consumption of the cooling water of the equipment is solved through a formula (3), and the frequency of a common pressure water supply pump is reduced to the frequency matched with the minimum water quantity, so that the minimum power consumption operation is realized;
F N01 ＝w N01 *f(T N01 ,T N02 ,T N03 ) (3)
F N01 cooling water flow for equipment at each level; w is a N01 Calculating and adjusting weight for cooling water flow of equipment at each level; t is N01 ，T N02 ，T N03 The temperature of cooling water at different positions of each stage of equipment; w is a N01 Calculating adjustment weight for cooling water flow of equipment at each level; w is a N01 The method comprises the steps of obtaining system operation adjustment, initially assigning the system as an empirical constant, accumulating a plurality of groups of empirical databases after the system operates stably, fitting quantitative relation curves of all parameters through a least square method, and solving w in the system N01 Accurately taking values;
2.3) adjusting the operation of the cooling tower by taking the temperature of the circulating cooling water discharged from the cooling tower as a target, namely adjusting the working frequency of the cooling tower according to a formula (4) to reduce the temperature of the circulating cooling water discharged from the cooling tower to a set temperature; the water outlet temperature of the circulating cooling water is controlled to realize the control of a hot water feeding pipe, so that the consumption of the circulating water is reduced;
T 001 ＝w 001 *f(H 006 ,T 006 ) (4)
T 001 the water outlet temperature of the circulating cooling water when the circulating cooling water is discharged from the cooling tower; h 006 Adjusting parameters, T, for cooling towers 006 Cooling tower for circulating cooling waterThe temperature of the inlet water; w is a 001 Calculating an adjustment weight for the outlet water temperature of the circulating cooling water; w is a 001 The method comprises the steps of obtaining system operation adjustment, initially assigning the system as an empirical constant, accumulating a plurality of groups of empirical databases after the system operates stably, fitting quantitative relation curves of all parameters through a least square method, and solving w in the system 001 Accurately taking values;
2.4) calculating the consumption of circulating water according to the formula (2), and supplementing water into the system when the consumption exceeds a threshold value; in the present embodiment, the threshold is set to 100m 3 And when the system consumption reaches a threshold value, supplementing a corresponding amount of new water through the new water pipe.
Claims (3)
1. A water quantity balance control system of water for sintering and pelletizing production is characterized by comprising a water pipeline for on-site production, a detection instrument on the water pipeline for on-site production, control equipment on the water pipeline for on-site production, a signal isolation and conversion system and a computer system; the detection instrument and the control equipment are respectively connected with a signal isolation conversion system, and the signal isolation conversion system is connected with a computer system;
the water pipeline for on-site production comprises a cooling water pool, a new water replenishing pipeline arranged in the cooling water pool, a cooling water inlet main pipeline and a fire-fighting water pipeline which are separated from the cooling water pool and provided with a water supply pump, a device cooling water inlet pipeline and a cleaning water pipeline which are separated from the cooling water inlet main pipeline and are respectively connected with each level of equipment in each workshop, a device cooling water outlet pipeline connected with each level of equipment in each workshop, a water return pool clean water return pipeline connected with the device cooling water outlet pipeline, a water return pool connected with the water return pool clean water return pipeline, a hot water feeding pipe connected between the water return pool and the cooling tower, and a sewer pipe connected between the cooling tower and the cold water pool;
the detection instrument comprises a field temperature, pressure and flow instrument;
the control equipment comprises a field regulating valve, a switch valve and frequency conversion equipment;
the signal isolation and conversion system comprises an isolator and a circuit breaker.
2. The system of claim 1, wherein the computer system comprises a PLC system, a module, and an upper computer, which are connected by data signals.
3. The system of claim 2, wherein the PLC system and the modules are responsible for signal acquisition and command transmission, and the upper computer is responsible for image display and intelligent algorithm program processing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220712131.2U CN217053582U (en) | 2022-03-30 | 2022-03-30 | Water quantity balance control system for sintering and pelletizing production water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220712131.2U CN217053582U (en) | 2022-03-30 | 2022-03-30 | Water quantity balance control system for sintering and pelletizing production water |
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| CN217053582U true CN217053582U (en) | 2022-07-26 |
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| CN202220712131.2U Active CN217053582U (en) | 2022-03-30 | 2022-03-30 | Water quantity balance control system for sintering and pelletizing production water |
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