CN117109243A - Intelligent unmanned system and method for circulating water equipment - Google Patents

Intelligent unmanned system and method for circulating water equipment Download PDF

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Publication number
CN117109243A
CN117109243A CN202311068243.4A CN202311068243A CN117109243A CN 117109243 A CN117109243 A CN 117109243A CN 202311068243 A CN202311068243 A CN 202311068243A CN 117109243 A CN117109243 A CN 117109243A
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CN
China
Prior art keywords
water
pump
water pump
circulating
valve
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Pending
Application number
CN202311068243.4A
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Chinese (zh)
Inventor
杨恩向
李顺祥
武正君
王利萍
沈政
杨朝万
廖应强
肖康
吴健文
周忠富
陈楠
张全道
岳恒龙
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Yunnan Wenshan Aluminum Co ltd
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Yunnan Wenshan Aluminum Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Yunnan Wenshan Aluminum Co ltd filed Critical Yunnan Wenshan Aluminum Co ltd
Priority to CN202311068243.4A priority Critical patent/CN117109243A/en
Publication of CN117109243A publication Critical patent/CN117109243A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention provides an intelligent unattended system of circulating water equipment and a method thereof, which relate to the technical field of circulating water equipment monitoring and aim at realizing more intelligent, comprehensive and accurate monitoring of the running state of the circulating water equipment; the intelligent unattended system of the circulating water equipment comprises a controller, and an electric execution water supplementing valve, a pressure transmitter, an electric execution water draining valve, an electromagnetic draining valve, a liquid level meter, an outlet flowmeter and a temperature sensor which are respectively connected to the controller; the electric execution water supplementing valve is arranged at the water filling port of each water pump and is used for supplementing water for the box body of the water pump; the pressure transmitter is arranged on each water pump, the electric execution drain valve is arranged on each water pump, and the electromagnetic exhaust valve is arranged at the water inlet pipe of each water pump and is used for exhausting air; the liquid level meter is arranged on the cold water tank, the hot water tank and the high-level water tower; the outlet flowmeter is arranged at the water pump; the temperature sensor is arranged in the cold water tank. The invention has the advantages of intelligent, accurate and high reliability of monitoring.

Description

Intelligent unmanned system and method for circulating water equipment
Technical Field
The invention relates to the technical field of circulating water equipment monitoring, in particular to an intelligent unattended system and method of the circulating water equipment.
Background
The alloy circulating water system is a circulating cooling water system used in a high-temperature industrial process, and utilizes alloy as a circulating medium to cool the alloy circulating water through water cooling or a coolant so as to realize heat transfer and temperature control.
The circulating cooling water system faces many problems in daily operation, such as: the liquid level of the water pump box body is not full after the machine is stopped; the electromagnetic discharge control valve at the water pump is unreliable in operation, still leaks air/is not tightly sealed after the power-on action, cannot be fully opened after power-off, and the air of the water pump box body is not completely discharged; before the water pump starts and does not rise normally, stopping the machine for 3 minutes, and leaking water from the gap of the rotating shaft when the water pump is in a closed state; the liquid levels of the cold water tank and the hot water tank are unbalanced. Due to the problems, the operation state of the circulating cooling water system needs to be closely monitored when the circulating cooling water system works, so that the operation effect of the circulating cooling water system is ensured. The prior art is also more mechanized and depends on manpower, for example, the improvement on hardware mainly depends on the temperature of each pool in the temperature sensor monitoring system to monitor the working state of the circulating water system so as to carry out corresponding and proper adjustment, and operators fill the water pump box body water level to the site before starting the water pump each time.
In order to monitor the running state of the circulating water equipment more intelligently, comprehensively and accurately, the monitoring mode of the circulating water equipment needs to be optimized and improved, so that the circulating water equipment can be ensured to run more smoothly and healthily.
Disclosure of Invention
The invention aims to provide an intelligent unattended system and method for circulating water equipment, which can realize more intelligent, comprehensive and accurate monitoring of the running state of the circulating water equipment.
The embodiment of the invention is realized by the following technical scheme:
the intelligent unattended system of the circulating water equipment comprises a hot water tank, a cold water tank, a plurality of cooling towers, a water pump and a high-level water tower, wherein the water pump comprises a circulating cooling pump, a hot water pump and a cold water pump;
the intelligent unattended system of the circulating water equipment comprises a controller, and an electric execution water supplementing valve, a pressure transmitter, an electric execution water draining valve, an electromagnetic draining valve, a liquid level meter, an outlet flowmeter and a temperature sensor which are respectively connected to the controller;
the electric execution water supplementing valves are respectively arranged at water filling ports of the water pumps and are used for supplementing water for the box bodies of the water pumps;
the electromagnetic emptying valves are arranged at the water inlet pipe of each water pump and used for exhausting air at the water inlet pipe;
the liquid level meters are arranged in a plurality of ways and are respectively arranged in the cold water tank, the hot water tank and the high-level water tower and used for liquid level monitoring;
the outlet flow meters are provided with a plurality of outlet flow meters which are respectively arranged at the water pumps and are used for monitoring the flow rate at each water pump;
the temperature sensor is arranged in the cold water tank and used for monitoring water temperature.
Preferably, 1 electric water replenishing valve is arranged at each water pump, and the electric water replenishing valves are used as pump body water filling electric water replenishing valves.
Preferably, the cold water pump is controlled in a one-to-two mode through the power saver.
Preferably, the hot water pump is controlled by one power saver in two.
Preferably, the high-level water tower is supplied with water from a cold water tank through a high-lift submersible pump.
In order to solve the problems, the invention also provides an intelligent unattended operation method of the circulating water equipment, which is applied to any one of the intelligent unattended operation systems of the circulating water equipment, and comprises the following steps:
the controller is used for remotely controlling the electric execution water supplementing valve to be opened to supplement water for the box body of the water pump;
monitoring the pressure value in each water pump through the pressure transmitter, and if the pressure value exceeds a preset pressure threshold value, performing drainage operation through an electric execution drainage valve;
the residual gas in each water pump is discharged through the electromagnetic exhaust valve;
the liquid level meter is used for monitoring the liquid levels of the cold water tank, the hot water tank and the high-level water tower, and when any water level in the cold water tank, the hot water tank and the high-level water tower is lower than a safe water level, corresponding water supplementing operation is carried out;
monitoring the flow of each water pump through the outlet flowmeter, and alarming and adjusting to ensure that the hot water pump outlet is greater than or equal to the cold water pump outlet if the hot water pump outlet is smaller than the cold water pump outlet;
and monitoring the water temperature of the cold water tank through the temperature sensor, and starting a circulating cooling pump if the water temperature of the cold water tank is greater than a preset temperature threshold value, wherein the circulating cooling pump and a corresponding cooling tower are cooperated to cool the cold water tank.
Preferably, the water pump is started after the water is replenished, and the water pump is started after the water tank body of the water pump is replenished with water.
Preferably, the water discharging operation is also performed after the water pump is stopped.
Preferably, the residual gas in each water pump is discharged through an electromagnetic exhaust valve after the water pump is stopped.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
according to the invention, the controller is used for realizing monitoring and control of corresponding equipment devices, so that comprehensive intelligent monitoring is realized, for example, unmanned water supplementing operation of the water pump can be realized, air of the water pump is automatically discharged, and human resources are saved;
the invention improves the control modes of the cold water pump and the hot water pump, and the electricity saver can save about 20% of electricity consumption and reduce the operation cost of the circulating water equipment;
the invention can realize automatic control on the water level balance of the cold water tank, the hot water tank and the high-level water tower, and can effectively avoid overflow and waste resources in time;
the high-level water tower can also greatly save water by supplying water through the cold water tank for the high-lift submersible pump, and ensure the operation of equipment with more environmental protection;
the control logic is reasonable in design, the hardware structure of the related equipment is simple to set, the cost is low, the cost performance is high, and the popularization and the implementation are convenient.
Drawings
Fig. 1 is a schematic structural diagram of a circulating water apparatus according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of an intelligent unattended system of a circulating water apparatus according to embodiment 1 of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
The intelligent unattended system of the circulating water equipment comprises a hot water tank, a cold water tank, a plurality of cooling towers, a water pump and a high-level water tower, wherein the water pump comprises a circulating cooling pump, a hot water pump and a cold water pump;
the embodiment is mainly used for monitoring the circulating water equipment, the circulating water equipment is adopted in conventional operation, the circulating water and the cooling of water are realized under the combined action of a hot water tank, a cold water tank, a plurality of cooling towers, a water pump and a high-level water tower, and the setting mode of one circulating water equipment can be referred to as fig. 1.
The circulating water equipment can be matched with a cooling water tower to circularly cool water in the cold water tank, and the high-order water tower is used as an emergency water source for deep well casting.
Referring to fig. 2, the intelligent unattended system of the circulating water equipment comprises a controller, and an electric execution water supplementing valve, a pressure transmitter, an electric execution water draining valve, an electromagnetic draining valve, a liquid level meter, an outlet flowmeter and a temperature sensor which are respectively connected to the controller;
the electric execution water supplementing valves are respectively arranged at water filling ports of the water pumps and are used for supplementing water for the box bodies of the water pumps;
the pressure transmitters are respectively arranged on the liquid outlet pipe of each water pump and used for detecting the hydraulic pressure value of the water pump, the outlet hydraulic pressure reaches the set pressure to control the opening of the electric outlet water supplementing valve, and the water supply pressure and the flow stability are ensured; the electromagnetic draining valves are arranged at the water inlet pipe of each water pump and used for draining air in the pump body and the water pipe, and guaranteeing the vacuum degree of equipment;
the liquid level meters are arranged in a plurality of parts and are respectively arranged in the cold water tank, the hot water tank and the high-level water tower and used for liquid level monitoring, liquid level three-level alarming and controlling the cold water tank and the high-level water tower electric actuator to automatically supplement water;
the outlet flow meters are provided with a plurality of outlet flow meters which are respectively arranged at the water pumps and are used for monitoring the flow rate at each water pump;
the temperature sensor is arranged in the cold water tank and used for monitoring water temperature and controlling two circulating water pumps and independent cooling towers of the cold water tank to intelligently operate according to water temperature required by production.
In the embodiment, the electric water replenishing valve can be controlled to be opened into the box body of the water pump for replenishing water through a starting program;
on the other hand, the condition that the opening of the proportional valve control valve of the water pump for starting the casting machine does not reach the process set flow opening can be represented by a pressure value, so that the condition can be detected by a pressure transmitter, the phenomena of running, overflowing, dripping and leaking existing when the water pump is started and stopped can be solved by matching with a drainage function, and the drainage can be performed by an electric execution drainage valve;
the electromagnetic exhaust valve can ensure that residual gas in the water pump and the pipeline is completely exhausted, so that the problems of sudden drop pressure and sudden drop flow rate in the operation of the water pump can be solved;
in addition, the liquid level meter can implement on-line detection, and the outlet flowmeter is combined accurately and timely to control the liquid level conditions of each cold water tank and re water tank including a high-level water tower so as to control liquid level balance and normalize the liquid level state.
Finally, the temperature sensor can monitor the state of the cold water tank, so that the cold water temperature in the cold water tank is convenient to reach the standard, namely, the water temperature of the cold water in the cold water tank is always below a certain preset temperature threshold.
In addition, the controller of the present embodiment may employ a PLC controller.
Example 2
The present embodiment is based on the technical solution of embodiment 1, and further improves the setting of the electrically-operated water replenishment valve.
As a preferable scheme of the embodiment, 1 electric execution water compensating valve at each water pump is arranged and used as a pump body water injection electric execution water compensating valve.
According to the embodiment, the two electric execution water supplementing valves arranged for each water pump can be automatically switched remotely, and the water pumps are normally switched on and off, so that automatic switching is facilitated during faults.
Example 3
The embodiment is based on the technical scheme of embodiment 1, and the control modes of the cold water pump and the hot water pump are further improved.
In this embodiment, the cold water pump is controlled by one power saver for two power saving modes.
Likewise, the hot water pump is controlled by one power saver in two.
The cold water pump is originally in soft start control, the hot water pump is originally in star-delta control, energy can be saved greatly after improvement, and the energy saving degree is about 20% compared with the energy saving degree of the original control mode by adopting the electricity saver er to control.
Example 4
The embodiment is based on the technical scheme of embodiment 1, and the water supply mode of the high-level water tower is further improved.
As a preferable scheme of the embodiment, the high-level water tower is supplied with water from a cold water tank through a high-lift submersible pump.
In the embodiment, the high-level water tower is automatically supplemented with water and is transformed into water supply from a cold water tank through a high-lift submerged pump, and the water is circulated back to a hot water tank, so that the problem of leakage of alloy circulating water can be solved
Example 5
The embodiment also provides an intelligent unattended operation method of the circulating water equipment, which is applied to the intelligent unattended operation system of the circulating water equipment, and comprises the following steps:
the controller is used for remotely controlling the electric execution water supplementing valve to be opened to supplement water for the box body of the water pump;
monitoring the pressure value in each water pump through the pressure transmitter, and if the pressure value exceeds a preset pressure threshold value, performing drainage operation through an electric execution drainage valve;
the residual gas in each water pump is discharged through the electromagnetic exhaust valve;
the liquid level meter is used for monitoring the liquid levels of the cold water tank, the hot water tank and the high-level water tower, and when any water level in the cold water tank, the hot water tank and the high-level water tower is lower than a safe water level, corresponding water supplementing operation is carried out;
it is specifically stated that, the water replenishing operation is performed by a conventional method, for example, when the water level of the cold water tank is lower than the overflow port of the cold water tank, that is, the water level of the spa, the system automatically starts a hot water pump until the water level in the cold water tank reaches the height of the overflow port of the cold water tank, and then stops the hot water pump to realize the water level balance adjustment.
Monitoring the flow of each water pump through the outlet flowmeter, and alarming and adjusting to ensure that the hot water pump outlet is greater than or equal to the cold water pump outlet if the hot water pump outlet is smaller than the cold water pump outlet;
and monitoring the water temperature of the cold water tank through the temperature sensor, and starting a circulating cooling pump if the water temperature of the cold water tank is greater than a preset temperature threshold value, wherein the circulating cooling pump and a corresponding cooling tower are cooperated to cool the cold water tank.
Based on the control mode of the embodiment, the full-aspect automatic intelligent monitoring of the circulating water equipment is realized, the normal and safe operation of the whole circulating water equipment is ensured, the manual maintenance and inspection are not frequently relied on, and the reliability is higher.
Example 6
The present embodiment is based on the technical solution of embodiment 5, and further improves the operation of replenishing water to the water pump.
In this embodiment, the tank of the water pump is replenished with water before the water pump is started, and the water pump is started after replenishing water.
Therefore, the problem that the water pump box body is not full in liquid level after stopping and only 2/3 of water is stored, and the water pump box body is filled with water manually before the water pump is started is solved.
When the water pump is stopped for drainage operation, the starting time of the electric execution drainage valve can be preset, namely the duration of drainage is set, for example, the electric execution drainage valve can be opened when the water pump is stopped, the electric execution drainage valve is closed after the program delay time is 5 minutes, and the phenomena of running, overflowing, dripping and leaking existing when the water pump is started and stopped can be effectively solved through the whole operation.
Example 7
The present embodiment is based on the technical solution of embodiment 5, and further improves the operation of replenishing water to the water pump.
As a preferable mode of the present embodiment, the water discharge operation according to embodiment 5 is also performed after the water pump is stopped.
That is, firstly, if the pressure value exceeds the preset pressure threshold, the drainage operation is performed by the electric-operated drainage valve, and secondly, the drainage operation is performed every time the machine is stopped.
In the conventional scheme, water is required to be drained manually through a water valve, and drainage is required to be monitored intelligently, so that the operation is more timely and accurate.
Example 8
The present embodiment is based on the technical solution of embodiment 5, and further improves the operation of replenishing water to the water pump.
In this embodiment, the residual gas in each water pump is discharged through the electromagnetic exhaust valve after the water pump is stopped.
The exhaust operation is performed during the stop, so that the problems of sudden drop pressure and sudden drop flow rate in the operation of the water pump are solved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides an intelligent unmanned on duty system of circulating water equipment, circulating water's equipment includes hot-water tank, cold water pond, a plurality of cooling towers, water pump and high-order water tower, the water pump includes circulating cooling pump, hot-water pump and cold water pump, its characterized in that:
the intelligent unattended system of the circulating water equipment comprises a controller, and an electric execution water supplementing valve, a pressure transmitter, an electric execution water draining valve, an electromagnetic draining valve, a liquid level meter, an outlet flowmeter and a temperature sensor which are respectively connected to the controller;
the electric execution water supplementing valves are respectively arranged at water filling ports of the water pumps and are used for supplementing water for the box bodies of the water pumps;
the electromagnetic emptying valves are arranged at the water inlet pipe of each water pump and used for exhausting air at the water inlet pipe;
the liquid level meters are arranged in a plurality of ways and are respectively arranged in the cold water tank, the hot water tank and the high-level water tower and used for liquid level monitoring;
the outlet flow meters are provided with a plurality of outlet flow meters which are respectively arranged at the water pumps and are used for monitoring the flow rate at each water pump;
the temperature sensor is arranged in the cold water tank and used for monitoring water temperature.
2. The intelligent unattended system of the circulating water equipment according to claim 1, wherein 1 electric execution water replenishing valve is arranged at each water pump, and the intelligent unattended system is used as a pump body water filling electric execution water replenishing valve.
3. The intelligent unattended system of the circulating water equipment according to claim 1, wherein the cold water pump is controlled in a one-to-two mode through a power saver.
4. An intelligent unattended system of a circulating water equipment according to claim 3, wherein the hot water pump is controlled by one-to-two power saving device.
5. The intelligent unattended system of a circulating water apparatus according to claim 1, wherein the high-level water tower is supplied with water from a cold water tank through a high-lift submersible pump.
6. An intelligent unattended method of circulating water equipment, which is applied to the intelligent unattended system of the circulating water equipment as claimed in any of claims 1 to 5, is characterized by comprising the following steps:
the controller is used for remotely controlling the electric execution water supplementing valve to be opened to supplement water for the box body of the water pump;
monitoring the pressure value in each water pump through the pressure transmitter, and if the pressure value exceeds a preset pressure threshold value, performing drainage operation through an electric execution drainage valve;
the residual gas in each water pump is discharged through the electromagnetic exhaust valve;
the liquid level meter is used for monitoring the liquid levels of the cold water tank, the hot water tank and the high-level water tower, and when any water level in the cold water tank, the hot water tank and the high-level water tower is lower than a safe water level, corresponding water supplementing operation is carried out;
monitoring the flow of each water pump through the outlet flowmeter, and alarming and adjusting to ensure that the hot water pump outlet is greater than or equal to the cold water pump outlet if the hot water pump outlet is smaller than the cold water pump outlet;
and monitoring the water temperature of the cold water tank through the temperature sensor, and starting a circulating cooling pump if the water temperature of the cold water tank is greater than a preset temperature threshold value, wherein the circulating cooling pump and a corresponding cooling tower are cooperated to cool the cold water tank.
7. The intelligent unattended method of the circulating water equipment according to claim 6 is characterized in that: and supplementing water to the box body of the water pump before the water pump is started, and starting the water pump after supplementing water.
8. The intelligent unattended method of the circulating water equipment according to claim 6 is characterized in that: the water discharge operation is also performed after the water pump is stopped.
9. The intelligent unattended method of the circulating water equipment according to claim 6 is characterized in that: and after the water pumps are stopped, the residual gas in each water pump is discharged through an electromagnetic emptying valve.
CN202311068243.4A 2023-08-23 2023-08-23 Intelligent unmanned system and method for circulating water equipment Pending CN117109243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311068243.4A CN117109243A (en) 2023-08-23 2023-08-23 Intelligent unmanned system and method for circulating water equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311068243.4A CN117109243A (en) 2023-08-23 2023-08-23 Intelligent unmanned system and method for circulating water equipment

Publications (1)

Publication Number Publication Date
CN117109243A true CN117109243A (en) 2023-11-24

Family

ID=88812185

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311068243.4A Pending CN117109243A (en) 2023-08-23 2023-08-23 Intelligent unmanned system and method for circulating water equipment

Country Status (1)

Country Link
CN (1) CN117109243A (en)

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