Glass factory circulating water system, control method, equipment and storage medium

Abstract

The invention relates to the technical field of circulating cooling, and discloses a glass factory circulating water system, a control method, equipment and a storage medium. According to the glass factory circulating water system, a first temperature control device is arranged in a water pool and used for controlling the temperature of circulating water within a set range, a water level monitoring device is used for uploading a current water level value to an upper computer, and the first temperature monitoring device is used for uploading a first temperature value to the upper computer; the upper computer is used for supplementing water to the pool according to the current water level value and controlling the first temperature control device according to the first temperature value; the circulating water pump is used for supplying circulating water to the water consuming equipment; the corrosion and scale inhibition device is used for treating process effluent of the water equipment; and the cooling tower is used for supplying cooling water obtained by cooling the process effluent to the water tank. By arranging the monitoring device in the system, the system can be controlled according to monitoring data transmitted in real time, the control precision is improved, and the operation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of circulating cooling, and particularly to a circulating water system, a control method, equipment and a storage medium for a glass factory. Background Art

[0002] Under the background of the rapid development of today's industry, the glass manufacturing industry, as a key supporting industry in many fields such as construction, automotive, and electronics, has seen a continuous increase in its production scale and process complexity. The circulating water system in a glass factory plays a crucial role in the entire glass production process chain. It is responsible for providing cooling water for key processes such as glass melting and forming, and taking away a large amount of heat to maintain the normal operating temperature of production equipment. Therefore, there are strict requirements for the uninterrupted and stable supply of circulating water throughout the glass production process.

[0003] Currently, most of the circulating water systems in glass factories rely on manual control modes. Operators, based on their own experience, regularly conduct on-site inspections and record various parameters of the circulating water system, such as temperature and water pressure, and then manually adjust the circulating water system in the glass factory according to these data.

[0004] However, this manual control method has many drawbacks. On the one hand, it is difficult to make the time interval of manual inspection short enough, resulting in a serious lag in data feedback. On the other hand, the accuracy of manual operation is limited, and it is impossible to accurately optimize the operating parameters of the circulating water system according to the real-time working conditions. This not only causes waste of water resources, but also consumes a large amount of electric energy due to frequent over-starting and stopping of equipment, increasing the operating cost.

[0005] Therefore, there is an urgent need for a circulating water system for a glass factory that can monitor data in real time and provide feedback to reduce the operating cost. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problems of lagging data feedback and high operating cost existing in the circulating water system of a glass factory that relies on a manual control mode in related technologies.

[0007] To solve the above technical problem, in a first aspect, the present invention provides a circulating water system for a glass factory, and the circulating water system for a glass factory includes:

[0008] A water tank for storing circulating water with a hardness value less than or equal to a preset hardness threshold; the water tank is provided with a first temperature control device, a water level monitoring device and a first temperature monitoring device;

[0009] The water level monitoring device is used to upload the current water level value obtained by monitoring the water level in the water tank to the host computer; the host computer is used to replenish water to the water tank when the current water level value reaches the water replenishment level;

[0010] The first temperature monitoring device is used to upload the first temperature value obtained by monitoring the temperature of the circulating water to the host computer; the host computer is used to control the first temperature control device according to the first temperature value; the first temperature control device is used to control the temperature of the circulating water within a set range;

[0011] A circulating water pump is provided with a first water outlet pipe; the circulating water pump is used to supply the circulating water in the water tank to the water-using equipment through the first water outlet pipe;

[0012] An anti-corrosion and scale inhibition device is used to treat the process water discharged from the water-using equipment;

[0013] The anti-corrosion and scale inhibition device is communicated with a cooling tower; the cooling tower is communicated with the water tank;

[0014] The cooling tower is used to cool the treated process water to obtain cooling water and supply the cooling water to the water tank.

[0015] In an optional implementation manner, the first water outlet pipe is provided with a first pressure monitoring device, a pressure relief device and a flow monitoring device;

[0016] The first pressure monitoring device, the pressure relief device and the flow monitoring device are all connected to the host computer.

[0017] In an optional implementation manner, the system further includes:

[0018] A filtration and softening device is used to perform filtration and softening treatment on the production water;

[0019] A makeup water valve arranged between the filtration and softening device and the water tank;

[0020] A first hardness monitoring device is used to monitor the hardness of the production water after filtration and softening treatment to obtain a hardness value and upload the hardness value to the host computer; the host computer is used to control the makeup water valve to open when determining that the hardness value is less than or equal to a preset hardness threshold, and store the production water after filtration and softening treatment as circulating water into the water tank.

[0021] In an optional implementation manner, the system further includes:

[0022] A water tower is arranged between the circulating water pump and the water-using equipment.

[0023] In an optional implementation manner, the system further includes:

[0024] A second water outlet pipe is arranged between the water-using equipment and the anti-corrosion and scale inhibition device;

[0025] The second water outlet pipe is provided with a process water outlet monitoring device; the process water outlet monitoring device is used to upload the process water outlet monitoring data obtained by monitoring the process water to a host computer; the host computer is used to control the corrosion and scale inhibition device according to the process water outlet monitoring data.

[0026] In an optional implementation manner, the process water outlet monitoring device includes: a second temperature monitoring device, a second pressure monitoring device, a second hardness monitoring device, and an ion monitoring device;

[0027] The second temperature monitoring device, the second pressure monitoring device, the second hardness monitoring device, and the ion monitoring device are all connected to the host computer.

[0028] In an optional implementation manner, the cooling tower includes: a third water outlet pipe and a second temperature control device; the third water outlet pipe is provided with a third temperature monitoring device;

[0029] The third temperature monitoring device is used to upload the third temperature value obtained by monitoring the outlet water temperature of the cooling tower to the host computer; the host computer is used to control the second temperature control device according to the third temperature value.

[0030] In a second aspect, the present invention provides a control method for a circulating water system of a glass factory, including:

[0031] Monitoring the water level in the water tank through a water level monitoring device to obtain the current water level value; the water tank is used to store circulating water with a hardness value less than or equal to a preset hardness threshold;

[0032] When the current water level value reaches the water replenishment level, replenish water to the water tank;

[0033] Monitoring the temperature of the circulating water to obtain a first temperature value;

[0034] Controlling a first temperature control device according to the first temperature value; the first temperature control device is used to control the temperature of the circulating water within a set range;

[0035] Supplying the circulating water in the water tank to a water-using device through a first water outlet pipe of a circulating water pump;

[0036] Cooling the treated process water through a cooling tower to obtain cooling water, and supplying the cooling water to the water tank.

[0037] In a third aspect, the present invention provides a computer device, including: a memory and a processor, which are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the control method for the circulating water system of the glass factory in the second aspect above.

[0038] Fourthly, the present invention provides a computer-readable storage medium, on which computer instructions are stored, and the computer instructions are used to cause a computer to execute the control method of the circulating water system in a glass factory according to the second aspect above.

[0039] Fifthly, the present invention provides a computer program product, including computer instructions, and the computer instructions are used to cause a computer to execute the control method of the circulating water system in a glass factory according to the second aspect above.

[0040] The technical solution provided by the present invention has the following technical effects:

[0041] The water tank is specially used to store the circulating water with a hardness value less than or equal to a preset hardness threshold, effectively avoiding the scaling problem that may be caused by the circulation of high-hardness water in the system, preventing the influence on the operation efficiency of water-using equipment, ensuring the stable operation of the entire circulating water system and water-using equipment, and reducing the equipment maintenance and replacement costs caused by scaling.

[0042] The circulating water system in the glass factory uses a water level monitoring device to monitor the water level in the water tank in real time and upload the current water level value to the host computer. When the water level reaches the make-up water level, the host computer automatically controls the water tank to be replenished with water. This function ensures that the water level of the circulating water in the water tank is always at a normal level, preventing the normal operation of the circulating water system from being affected due to too low water level, ensuring the stable operation of the circulating water, and maintaining the reliability and continuity of the entire system.

[0043] The first temperature monitoring device collects the temperature of the circulating water in real time and uploads the first temperature value to the host computer. The host computer controls the first temperature control device according to this temperature value, so that the temperature of the circulating water is always maintained within a set range. Precise temperature control helps to meet the water temperature requirements of water-using equipment, ensures the stable operation of water-using equipment under suitable temperature conditions, improves the working efficiency and product quality of water-using equipment, and also helps to extend the service life of the equipment.

[0044] The cooling tower cools the process effluent treated by the corrosion and scale inhibitor device, turning it into cooling water and re-circulating it back to the water tank for use, building a complete water resource recovery and reuse system. Compared with directly discharging process wastewater and taking fresh water to supplement the circulating water system, this significantly improves the water resource utilization rate and reduces the fresh water consumption cost of the glass factory. At the same time, the repeated use of circulating water reduces the waste of water resources and realizes energy conservation and environmental protection.

[0045] The entire circulating water system has achieved highly automated operation with the help of a host computer. From water level control, water temperature adjustment to the coordination of various links in the water quality treatment process, all are automatically decided and executed by the host computer based on real-time monitoring data. This reduces the complexity and labor intensity of manual operation, minimizes the risk of human error, and also improves the timeliness and accuracy of system response, achieving intelligent and refined production management. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0047] Figure 1 It is a schematic structural diagram of the circulating water system of the glass factory in the embodiment of the present invention;

[0048] Figure 2 It is a schematic structural diagram of the circulating water system corresponding to the open cooling tower in the embodiment of the present invention;

[0049] Figure 3 It is a schematic structural diagram of the circulating water system corresponding to the closed cooling tower in the embodiment of the present invention;

[0050] Figure 4 It is a schematic flowchart of the control method of the circulating water system of the glass factory in the embodiment of the present invention;

[0051] Figure 5 It is a schematic hardware structure diagram of the computer device in the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0053] In the description of the invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The embodiments of the present invention provide a glass factory circulating water system, a control method, a device, and a storage medium to solve the problems of data feedback lag and high operating cost in the glass factory circulating water system that relies on the manual control mode in the related art.

[0055] According to an embodiment of the present invention, an embodiment of a glass factory circulating water system is provided. Figure 1 It is a schematic structural diagram of the glass factory circulating water system according to the embodiment of the present invention.

[0056] As Figure 1 shown, in the embodiment of the present invention, a glass factory circulating water system is provided, and the glass factory circulating water system includes:

[0057] A water tank 11, a circulating water pump 12, a corrosion and scale inhibitor device 13, a cooling tower 14, and a host computer 15 connected to the water tank 11, the circulating water pump 12, the corrosion and scale inhibitor device 13, and the cooling tower 14. The water tank 11 is a cold water tank.

[0058] The water tank 11 is used to store circulating water with a hardness value less than or equal to a preset hardness threshold. The water tank 11 is provided with a first temperature control device 111, a water level monitoring device 112, and a first temperature monitoring device 113.

[0059] The water level monitoring device 112 is used to upload the current water level value obtained by monitoring the water level in the water tank 11 to the host computer 15. The host computer 15 is used to replenish water to the water tank 11 when the current water level value reaches the water replenishment level.

[0060] In this embodiment, that the current water level value reaches the water replenishment level means that the current water level value is less than or equal to the water replenishment level. The water replenishment level is a preset value, which can be set and modified according to actual needs and is not limited in the present invention.

[0061] There is no limitation on the specific type of the water level monitoring device 112. As an example, it can be a static pressure level gauge. The static pressure level gauge is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid, and calculates the water level height by detecting the pressure at the bottom of the water tank 11. For example, when the water level in the water tank 11 changes, the pressure received by the bottom of the static pressure level gauge also changes, and then converts the current water level value into an electrical signal and sends it to the host computer 15.

[0062] As another example, the water level monitoring device 112 can be a direct-reading liquid level gauge. For example, an ultrasonic liquid level gauge measures the water level by utilizing the propagation speed and reflection characteristics of ultrasonic waves in the air. It mainly consists of an ultrasonic transducer, a controller, and a display unit. The transducer emits ultrasonic pulses. When the pulses encounter the water surface and are reflected back, the controller calculates the current water level value based on the round-trip time of the ultrasonic waves and displays it in real time on the display unit. It can achieve non-contact measurement, has relatively high accuracy, and can be applied to water tanks 11 with various different shapes. It can also conveniently communicate with the host computer 15. The water level monitoring device 112 can also be used to generate a first feedback signal when the current water level value reaches the water replenishment level, and send the first feedback signal to the host computer 15. The host computer 15 is used to replenish water to the water tank 11 when receiving the first feedback signal. Specifically, when a water replenishment valve is provided in the water tank 11, the water replenishment valve can be controlled to open to replenish water to the water tank 11 when receiving the first feedback signal.

[0063] The water level of the water tank 11 is monitored in real time by the water level monitoring device 112, and the current water level value is uploaded to the host computer 15. When the water level reaches the water replenishment level, the host computer 15 automatically controls the water replenishment to ensure that there is always enough circulating water in the water tank 11, maintaining the stable operation of the circulating water system, avoiding affecting the normal operation of water-using equipment due to too low water level, and ensuring the continuity of the production process in the glass factory.

[0064] The water level monitoring device 112 can also be used to generate a second feedback signal when the current water level value reaches the normal water level during the process of replenishing water to the water tank 11, and send the second feedback signal to the host computer 15. The host computer 15 is used to stop replenishing water to the water tank 11 when receiving the second feedback signal. Specifically, when a water replenishment valve is provided in the water tank 11, the water replenishment valve can be controlled to close to stop replenishing water to the water tank 11 when receiving the second feedback signal. The normal water level is a preset value, which can be set and modified according to actual needs and is not limited in the present invention.

[0065] During the water replenishment process, when the water level reaches the normal water level, the water level monitoring device 112 can generate a second feedback signal to make the host computer 15 stop the water replenishment, accurately controlling the water level, avoiding waste of water resources caused by over-replenishment, and at the same time preventing damage to system equipment that may be caused by too high water level.

[0066] In addition, the host computer 15 can also be set with a maximum alarm water level and a minimum production water level. The host computer 15 is also used to give an alarm when the current water level value is greater than the maximum alarm water level to remind the operator to handle it manually to avoid overflow. When the current water level value is less than the minimum production water level, an alarm is given to remind the operator to handle it in time and find out the cause of the problem, such as the liquid level of the water tank 11 drops due to pipeline leakage, the water level monitoring device 112, such as a liquid level gauge is damaged, resulting in abnormal water level display, or the water supply valve is damaged, etc.

[0067] The entire water level monitoring, water replenishment control, and alarm process are all automatically completed by the water level monitoring device 112 and the host computer 15, greatly reducing manual operation and intervention, reducing the errors and uncertainties that may be brought by manual operation, and improving the operation efficiency and reliability of the system. The communication between the water level monitoring device 112 and the host computer 15 enables the staff to centrally monitor the water level status of the water tank 11 through the host computer 15, timely understand the operation of the system, facilitate unified management and scheduling, and realize intelligent management.

[0068] The first temperature monitoring device 113 is used to upload the first temperature value obtained by monitoring the temperature of the circulating water to the host computer 15. The host computer 15 is used to control the first temperature control device 111 according to the first temperature value. The first temperature control device 111 is used to control the temperature of the circulating water within a set range. Specifically, the first temperature value is less than or equal to the minimum value (the first preset value) of the set range, or the first temperature value is greater than or equal to the maximum value (the second preset value) of the set range. The set range can be set and modified according to actual needs.

[0069] In this embodiment, the first temperature monitoring device 113 can be a temperature sensor. As an example, such as a thermal resistance temperature sensor, a thermocouple temperature sensor, etc. The specific type of the first temperature monitoring device 113 is not limited in the present invention.

[0070] The water tank 11 is provided with a first temperature monitoring device 113 to feedback the temperature of the circulating water (the first temperature value) in the water tank 11 to the host computer 15. The host computer 15 can specifically be used to generate a high-temperature alarm instruction when the first temperature value is greater than the maximum value of the set range, and send the high-temperature alarm instruction to the first temperature control device 111. The first temperature control device 111 is used to increase the fan speed or turn on the spray pump, etc. to reduce the temperature of the circulating water in the water tank 11 when receiving the high-temperature alarm instruction. The host computer 15 can specifically be used to generate a low-temperature alarm instruction when the first temperature value is less than the minimum value of the set range, and send the low-temperature alarm instruction to the first temperature control device 111. The first temperature control device 111 is used to stop the fan or stop the spray pump when the spray pump is turned on, etc. to increase the temperature of the circulating water in the water tank 11 when receiving the low-temperature alarm instruction. In the present invention, the temperature control device includes a fan and a spray pump.

[0071] The circulating water pump 12 is provided with a first water outlet pipe. The circulating water pump 12 is used to supply the circulating water in the water tank 11 to the water-using equipment through the first water outlet pipe.

[0072] The water-using equipment is the production equipment of a glass factory. The circulating water pump 12 includes a main pump and a standby pump. Under normal conditions, the main pump is in the enabled state and the standby pump is in the disabled state. Under normal conditions, the main pump is used to supply the circulating water in the water tank 11 to the water-using equipment through the first water outlet pipe.

[0073] In this embodiment, the first water outlet pipe is provided with a first pressure monitoring device, a pressure relief device and a flow monitoring device, and a water supply valve is also provided. The first pressure monitoring device includes at least 2. The purpose of setting at least two pressure monitoring devices is to effectively avoid misjudging the pressure situation due to the failure of a single pressure measurement point, and then wrongly starting the standby pump, resulting in unnecessary fluctuations in the system pressure, and ultimately affecting the stability and safety of water supply.

[0074] The first pressure monitoring device, the pressure relief device and the flow monitoring device are all connected to the upper computer 15. As an example, the first pressure monitoring device can be a pressure sensor, a pressure transmitter, etc., the pressure relief device can be a safety valve, a self-operated pressure relief valve, etc., and the flow monitoring device can be an electromagnetic flowmeter, a turbine flowmeter, etc.

[0075] The first pressure monitoring device is used to monitor the water supply pressure (the first pressure) of the water tank 11 and send the water supply pressure to the upper computer 15. The upper computer 15 is used to enable the standby pump when the water supply pressure is lower than or continuously lower than the low-pressure preset range within a preset time range. The main pump is in the enabled state and the standby pump is in the enabled state. The main pump and the standby pump are used to supply the circulating water in the water tank 11 to the water-using equipment through the first water outlet pipe. As an example, the low-pressure preset range is [0.3, 0.4) MPa.

[0076] The circulating water pump 12 can also be provided with a diesel pump as an emergency water pump. The starting method of the diesel water pump can be power-off start or start when the pressure is lower than 0.30 - 0.35 MPa. The starting pressure of the diesel pump is slightly lower than the starting pressure of the standby pump.

[0077] The upper computer 15 is also used to give a high-pressure warning and enable the pressure relief device when the water supply pressure is higher than or continuously higher than the high-pressure preset range within a preset time range. As an example, the high-pressure preset range is [0.6, 0.7] MPa.

[0078] A pressure relief device is used to reduce the water supply pressure of the circulating water pump 12, so as to reduce the pressure supplied by the circulating water pump 12 to the water-using equipment. A pressure relief device is arranged on the first water outlet pipeline between the circulating water pump 12 and the water-using equipment, which can prevent the system from overpressure. At the same time, a pressure monitoring device is arranged behind the pressure relief device. When the pressure is greater than 0.01 MPa, an alarm is given, and when the pressure relief valve acts, it can be detected in time. At the same time, it can also prevent the pressure relief device from being damaged, avoid causing part of the water flow to flow into the water tank 11, resulting in an increase in the pump flow rate and wasting energy.

[0079] A flow monitoring device is used to monitor the water supply flow rate of the pump and send the water supply flow rate to the host computer 15. The host computer 15 can monitor the water consumption in different production modes of the production line. When the water consumption range changes within a large range, an alarm is given. At the same time, the actual water consumption can be recorded, providing data reference for the reconstruction of the production line. According to the relevant relationship between the measured make-up water volume and the circulating water volume, it is used for water-saving analysis and water consumption cost analysis of the production line.

[0080] If the flow monitoring device monitors that the water supply flow rate shows abnormal fluctuations (such as sudden increase or decrease), the host computer 15 can take corresponding measures. When the sudden increase in flow rate may cause damage to the water-using equipment or imbalance of the system pressure, the host computer 15 gives an alarm to remind the staff to check whether there are problems such as pipeline rupture and valve failure. When the sudden decrease in flow rate may affect production, the host computer 15 can check the operating status of the main pump and the standby pump. If the pump fails, the standby pump is switched or started in time to restore the normal water supply flow rate.

[0081] The corrosion and scale inhibition device 13 is used to treat the process effluent (process water) of the water-using equipment. It can be a set of equipment installed on the pipeline, or a dosing system, and controls the corrosion and scaling of the pipeline and equipment by adding medicine to the pipeline or adding medicine to the water tank.

[0082] The corrosion and scale inhibition device 13 is connected to the cooling tower 14. The cooling tower 14 is connected to the water tank 11.

[0083] The cooling tower 14 (cooling equipment) is used to cool the treated process effluent to obtain cooling water and supply the cooling water to the water tank 11.

[0084] In the present invention, generally, multiple cooling towers 14 are arranged in a set of circulating water system of a glass factory. For example, a closed cooling tower or an open cooling tower. The structural schematic diagram of the circulating water system corresponding to the open cooling tower is as Figure 2 shown, and the structural schematic diagram of the circulating water system corresponding to the closed cooling tower is as Figure 3 shown. One closed cooling tower corresponds to one or more spray pumps and multiple groups of fans. The corresponding relationship among the temperature, the fan speed, and the spray pump can be pre-determined according to the program.

[0085] As an example, the corrosion and scale inhibitor device 13 includes:

[0086] Drug addition system:

[0087] Drug storage tank: A container for storing corrosion inhibitors and scale inhibitors. Its material is usually selected according to the chemical properties of the stored drugs. For example, for some drugs with strong acidity or alkalinity, storage tanks made of corrosion-resistant plastics (such as polyethylene, polypropylene) or fiberglass are used. The size of the storage tank is determined according to the scale of the circulating water system in the glass factory and the usage amount of the drugs, and there are different capacity specifications. For example, in a large glass factory, a drug storage tank with a capacity of several cubic meters may be used to meet the drug supply demand for a long time.

[0088] The storage tank is generally equipped with a liquid level gauge for real-time monitoring of the liquid level height of the drugs in the tank. The liquid level gauge can be of various types such as a float type liquid level gauge, a static pressure type liquid level gauge, etc. Through the monitoring of the liquid level gauge, the staff can timely understand the remaining amount of the drugs so as to replenish them in time when the drugs are insufficient.

[0089] Dosing pump: The dosing pump is one of the core components of the drug addition system, and its function is to accurately control the addition amount of corrosion inhibitors and scale inhibitors. The dosing pump usually adopts a plunger type or a diaphragm type structure. The plunger type dosing pump sucks the drug from the storage tank through the reciprocating motion of the plunger and accurately transports it to the circulating water system. The diaphragm type dosing pump uses the deformation of the diaphragm to achieve the suction and discharge of the drug.

[0090] The flow regulation range of the dosing pump is relatively wide, and the addition amount of the drug can be accurately controlled by adjusting the stroke length or frequency of the pump according to factors such as the flow rate and water quality of the circulating water. For example, in a circulating water system with hard water quality and a large scaling tendency, the dosing pump can appropriately increase the addition amount of the scale inhibitor to ensure good scale inhibition effect.

[0091] Pipes and valves: The pipes connecting the drug storage tank and the circulating water system are usually made of corrosion-resistant materials such as stainless steel pipes, plastic pipes (such as PVC, PPR), etc. The diameter of the pipes is selected according to the drug flow rate and system pressure requirements. The valves are used to control the flow of the drugs, including manual valves and automatic valves. The manual valves are mainly used to cut off the drug flow path in cases such as equipment maintenance and repair. The automatic valves (such as solenoid valves) can achieve automatic control of drug addition according to the control signal of the upper computer 15 or a preset program.

[0092] Mixing device:

[0093] Static mixer: A static mixer is a mixing device without moving parts. It mainly consists of a series of fixed mixing units. When the chemical agent and the circulating water pass through these mixing units, complex flow states such as diversion, confluence, and rotation will occur, thereby achieving the full mixing of the chemical agent and the circulating water. The mixing effect of the static mixer is related to factors such as the structure and quantity of the mixing units and the water flow velocity. For example, some static mixers with spiral mixing units can make the chemical agent and the circulating water form a spiral flow in the pipeline, increasing the mixing uniformity.

[0094] Agitator: In some corrosion and scale inhibition devices 13, an agitator is also used to promote the mixing of the chemical agent and the circulating water. The agitator is usually installed in the water tank 11 near the chemical agent addition point. It consists of a motor, an agitator shaft, and agitator blades. The motor drives the agitator shaft to rotate, and the agitator blades agitate the circulating water and the chemical agent, enabling the chemical agent to be quickly dispersed in the circulating water. The rotation speed of the agitator can be adjusted according to the mixing requirements to achieve the best mixing effect.

[0095] Control system:

[0096] Controller: The core of the control system of the corrosion and scale inhibition device 13 is the controller, which can be an independent programmable logic controller or a control module integrated in the host computer 15. The controller receives signals from devices such as liquid level gauges and flow monitoring devices, and controls the actuators such as metering pumps and valves according to preset control strategies, such as the proportional relationship between the chemical agent addition amount and the circulating water flow rate, and the upper and lower limit alarms of the chemical agent liquid level.

[0097] For example, when the circulating water flow rate changes, the controller can automatically adjust the flow rate of the metering pump according to a pre-set mathematical model to ensure that the chemical agent addition amount and the circulating water flow rate always maintain an appropriate ratio to achieve the best corrosion and scale inhibition effect. Sensors: In addition to liquid level gauges and flow monitoring devices, the control system may also include other sensors, such as concentration sensors. The concentration sensor is used to monitor the concentration of corrosion inhibitors and scale inhibitors in the circulating water and feedback the concentration signal to the controller. If the concentration is lower than the preset value, the controller / host computer 15 will control the metering pump to increase the chemical agent addition amount. If the concentration is too high, an alarm signal may be issued to remind the staff to check whether there is a malfunction in the metering pump or whether the chemical agent addition is excessive.

[0098] In an alternative embodiment, the circulating water system of the glass factory further includes: a filtration and softening device for filtering and softening the production water.

[0099] A makeup water valve provided between the filtration and softening device and the water tank 11. This makeup water valve is the makeup water valve for the water tank 11. The filtration and softening device includes a filtration device and a softening device.

[0100] The first hardness monitoring device is used to monitor the hardness of the produced water after filtration and softening treatment, obtain the hardness value, and upload the hardness value (the first hardness value) to the host computer 15. The host computer 15 is used to control the makeup water valve to open when it is determined that the hardness value is less than or equal to the preset hardness threshold, and store the produced water after filtration and softening treatment as circulating water in the water tank 11. The preset hardness threshold can be set and modified according to actual needs. The hardness value of the produced water after filtration and softening treatment monitored by the first hardness monitoring device is the first hardness value.

[0101] In this embodiment, after the produced water is filtered and softened, the hardness is tested by the hardness monitoring device, and the hardness value is fed back to the host computer 15. For example, when the hardness value is greater than 0.03 mmol / L (calculated as calcium carbonate), the makeup water valve of the water tank 11 is closed, and a command is sent to the softening device. Generally, there are no less than 2 groups of softening devices. When the hardness value of group A is greater than 0.03 mmol / L (calculated as calcium carbonate), the resin of group A softening device is regenerated, and group B is working. After the water quality of the device meets the standard, the water tank 11 is replenished with water. This can prevent high-hardness water from entering the water tank 11, avoid pipeline scaling, and reduce the usage time of the cooling equipment.

[0102] In an alternative embodiment, the circulating water system of the glass factory further includes: a water tower, which is arranged between the circulating water pump 12 and the water-using equipment. The water tower is generally located at a higher position, and the stored water has a certain potential energy. This potential energy can ensure emergency water supply for a short time when the water pump stops running during a power outage.

[0103] In this embodiment, the water tower is provided with a water level monitoring device 112 and a temperature monitoring device. In winter in the north, the water temperature in the water tower is low. By monitoring the water temperature, when the water temperature is lower than a certain temperature, the makeup water pipe opens and enters the water tank 11 in an overflow form to ensure the water circulation in the water tower. When the water temperature is lower than a certain temperature again, an alarm is issued to prevent icing. By ensuring that the water inflow and outflow in the water tower are equal, the temperature in the tower can be kept constant within a certain range. The overflow of low-temperature water into the water tank 11 reduces the temperature drop of the cooling tower 14, thereby reducing the evaporation amount and the operating electricity cost of the cooling equipment. Monitoring the water level can, in case of emergency, take corresponding measures such as removing the cooling equipment according to the water level change. For example, when the water level drops to 1 / 2 - 2 / 3, to avoid leakage of the cooling equipment and accidents. By setting a time, the water quality in the circulating water tower is circulated regularly to prevent the water quality in the water tower from deteriorating due to long-term non-use, and to prevent pipeline blockage and other situations during emergencies.

[0104] There are two independent circulation systems inside the closed-circuit cooling tower. One is the circulating water system inside the pipes, and the other is the spray water system outside the pipes. The circulating water flows inside the closed pipes, with a high degree of isolation from the outside air and impurities. This closed circulation method makes the water quality of the circulating water relatively stable, not easily contaminated by the outside world, and also reduces the possibility of gas entering the circulating water. Efficient heat exchange method: In the closed-circuit cooling tower, the heat exchange is mainly achieved through the indirect heat exchange between the circulating water inside the pipes and the spray water and air outside the pipes. The spray water outside the pipes forms a water film on the packing, and the air fully contacts the water film under the action of the fan, taking away the heat. At the same time, the circulating water inside the pipes transfers heat to the water film and air outside the pipes through the pipe wall. This indirect heat exchange method makes the pressure of the circulating water system relatively stable.

[0105] The circulating water pump 12 can stably supply the circulating water to the water-using equipment according to the flow rate and pressure requirements designed by the system. Since the closed-circuit cooling tower can effectively prevent foreign impurities from entering the circulating water, the water quality of the circulating water is relatively pure, reducing the risk of scaling and corrosion inside the pipes and water-using equipment. This makes the operation of the circulating water system more stable and will not cause pipe blockage or equipment damage due to water quality problems.

[0106] Not setting up a water tower can save a large amount of space, and emergency water supply can be ensured through methods such as diesel pumps. Water towers are usually large in volume and require a certain amount of floor area and height space. In the production environment of a glass factory, space is a precious resource. Canceling the water tower can make the plant layout more compact, improve land utilization rate, or provide more space for the installation of other production equipment. Not setting up a water tower can reduce the purchase cost, installation cost, and later maintenance cost of the equipment. The construction of the water tower itself requires a certain amount of investment in materials, construction, etc., and regular inspections and repairs are also required during use, such as maintaining the tower body structure and internal anti-corrosion coating of the water tower. Without a water tower, the overall cost of the circulating water system in the glass factory can be reduced to a certain extent.

[0107] In an optional implementation manner, the circulating water system of the glass factory further includes:

[0108] A second outlet pipe, which is arranged between the water-using equipment and the corrosion and scale inhibitor device 13. The second outlet pipe can be the outlet pipe of the water-using equipment.

[0109] The second outlet pipe is provided with a process outlet water monitoring device. The process outlet water monitoring device is used to upload the process outlet water monitoring data obtained by monitoring the process outlet water to the host computer 15. The host computer 15 is used to control the corrosion and scale inhibitor device 13 according to the process outlet water monitoring data.

[0110] In an alternative embodiment, the process effluent monitoring device includes: a second temperature monitoring device, a second pressure monitoring device, a second hardness monitoring device, and an ion monitoring device.

[0111] The second temperature monitoring device, the second pressure monitoring device, the second hardness monitoring device, and the ion monitoring device are all connected to the host computer 15. As an example, the ion monitoring device is specifically a chloride ion monitoring device.

[0112] The second temperature monitoring device is used to monitor the temperature of the process effluent discharged by the water-using equipment to obtain a second temperature value, and upload the second temperature value to the host computer 15.

[0113] The second pressure monitoring device is used to monitor the pressure of the process effluent discharged by the water-using equipment to obtain a second pressure, and upload the second pressure to the host computer 15.

[0114] The second hardness monitoring device is used to monitor the hardness of the process effluent discharged by the water-using equipment to obtain a second hardness value, and upload the second hardness value to the host computer 15.

[0115] The ion monitoring device is used to monitor the chloride ion mass concentration of the process effluent discharged by the water-using equipment to obtain the chloride ion mass concentration, and upload the chloride ion mass concentration to the host computer 15.

[0116] The host computer 15 is further used to determine whether the second temperature value, the second hardness value, and the chloride ion mass concentration meet the first preset condition. When the first preset condition is met, the process effluent discharged by the water-using equipment is used for adding water to the mixer of the raw material system. No cooling, filtration, etc. are required, reducing the use of chemical agents, lowering the operating cost, and improving the water resource utilization rate. The first preset condition can be set according to the corresponding raw material system.

[0117] In this embodiment, the second effluent pipeline is the effluent pipeline of the water-using equipment.

[0118] The second effluent pipeline is provided with a bypass electric valve. The host computer 15 is further used to determine whether the second temperature value, the second hardness value, and / or the chloride ion mass concentration meet the second preset condition. When the second preset condition is met, the bypass electric valve is controlled to open, so that the process effluent discharged by the water-using equipment directly enters the water tank 11, or measures such as turning off the fan are taken. For example, the host computer 15 can be used to determine that the second preset condition is met when the second temperature value is less than the second temperature preset value. When the second preset condition is met, the bypass electric valve is controlled to open, so that the process effluent discharged by the water-using equipment directly enters the water tank 11.

[0119] In summer or when the temperature is higher than 20°C, turn on the spray pump and adjust the fan speed according to the outlet water temperature (the second temperature value) of the water-using equipment. In winter or when the average outdoor temperature is lower than 20°C, turn off the spray pump and adjust the fan speed according to the outlet water temperature (the second temperature value) of the water-using equipment. Different operating modes can also be set according to different regions. For example, in areas with water shortages and low electricity costs, the fan speed can be adjusted to control the outlet water temperature. In areas with abundant water resources and high electricity costs, the main adjustment is to adjust the spray, and adjusting the fan speed is used as an auxiliary measure. After a cost evaluation, a reasonable operating mode is selected.

[0120] In summer, generally the spray pump is always on, and the outlet water temperature is controlled by adjusting the fan speed. In winter, when the temperature is low, the spray pump can be turned off, and the outlet water temperature can be controlled by adjusting the fan speed. If there are multiple groups of cooling towers 14, it can also be set to an operating mode where the spray pumps and fans of some cooling towers 14 are both on, and some only have the fan on and the spray pump off.

[0121] In the present invention, in the upper computer 15, multiple threshold tables can be preset in advance. According to the value of the current adjustment index and the corresponding threshold table, the parameter value of the parameter to be adjusted can be determined. The threshold table can represent the corresponding relationship between the adjustment index and the parameter to be adjusted. For example, it can represent the corresponding relationship between temperature, hardness value, fan speed, the number of spray pumps turned on, etc. Among them, the adjustment index represents temperature and hardness value, and the parameter to be adjusted represents fan speed and the number of spray pumps turned on.

[0122] When the water temperature is higher than the set temperature, according to the current water temperature and the pre-determined threshold table, an adjustment strategy can be obtained, the speed can be adjusted, and the spray pump can be turned on.

[0123] Temperature, pressure, chloride ion, and hardness monitoring devices are set on the process effluent pipeline, and the monitoring data is fed back to the upper computer 15. According to the chloride ion mass concentration (or other hardness ion mass concentrations) and the second hardness value, it is determined whether to turn on the corrosion and scale inhibition device 13, perform filtration and softening side filtration treatment, dosing treatment, or carry out sewage discharge.

[0124] As an example, the upper computer 15 is also used to control the corrosion and scale inhibition device 13 to turn on when the second hardness value is greater than the second hardness preset value, and control the corrosion and scale inhibition device 13 to turn off when the second hardness value is less than the second hardness target value, or to carry out sewage discharge when the chloride ion mass concentration is greater than the preset ion value and meets the sewage discharge conditions, and stop sewage discharge when the chloride ion mass concentration is less than the target ion value. A sewage discharge valve is provided on the second effluent pipeline, and the upper computer 15 can control the opening and closing of the sewage discharge valve.

[0125] After the sewage from the 14th cooling tower and the filtered and softened sewage are treated, they are used for road sprinkling, glass washing, sand washing and other water uses, realizing secondary utilization, and the sewage is metered to facilitate water use analysis and water production cost analysis.

[0126] When the second hardness value is greater than 0.2 mmol / L (calculated as calcium carbonate), side filtration is started for filtration and softening treatment. When the mass concentration of chloride ions is greater than 300 mg / L, sewage discharge is carried out. The process outlet water temperature is set with a high-temperature alarm. When the second temperature value is higher than the preset temperature value, such as 42 °C, an alarm is given, and the water pump increases the flow rate to ensure the cooling effect.

[0127] The temperature of the production process outlet water is relatively high, the circulating water quality is good, the hardness and ion content are relatively low, and it can be used for adding water to the mixer in the raw material system. It can make full use of the high-temperature water, and not too many impurity ions will be introduced into the raw materials, which is beneficial to improving the glass quality. The sewage discharge volume is reduced, a part of the high-temperature water entering the cooling equipment (the 14th cooling tower) is reduced, and the energy consumption of the cooling equipment is reduced. The evaporation volume is reduced, which is beneficial to water conservation.

[0128] In an optional embodiment, the 14th cooling tower includes: a third outlet water pipe and a second temperature control device. The third outlet water pipe is provided with a third temperature monitoring device.

[0129] The third temperature monitoring device is used to upload the third temperature value obtained by monitoring the outlet water temperature of the 14th cooling tower to the host computer 15. The host computer 15 is used to control the second temperature control device according to the third temperature value.

[0130] The 14th cooling tower further includes: a third inlet water pipe, and the third inlet water pipe is provided with a fourth temperature monitoring device. The fourth temperature monitoring device is used to upload the fourth temperature value obtained by monitoring the inlet water temperature of the 14th cooling tower to the host computer 15. The host computer 15 can also be used to control the second temperature control device according to the third temperature value and the fourth temperature value.

[0131] A third temperature monitoring device is arranged on the outlet water pipe (the third outlet water pipe) of the 14th cooling tower. According to the outlet water temperature (the third temperature value) of the 14th cooling tower, the operation mode of the 14th cooling tower is adjusted in time to ensure the outlet water temperature. For example, when the inlet water temperature is 40 °C and the outlet water temperature is 28 °C, which is lower than the set value of 32 °C, the fan speed is adjusted so that the outlet water temperature is 32 °C at this time. If the fan speed is adjusted to the lower limit and the temperature is still lower than 32 °C, the spray pump is closed at this time. If the inlet water temperature is 40 °C and the fan speed is adjusted to the upper limit and the outlet water temperature is 35 °C, the spray pump needs to be started at this time to reach the set temperature of 32 °C. The third temperature monitoring is set on the third outlet water pipe of each 14th cooling tower. The host computer 15 can quickly adjust the water temperature according to the set temperature. Compared with directly controlling the 14th cooling tower by using the water temperature in the water tank 11 (the first temperature value), the adjustment speed is fast, the temperature is accurate, and the error is small.

[0132] Advantages of the technical solution of the present invention:

[0133] Intelligent operation, energy saving:

[0134] Both the water pump and the fan are controlled by frequency conversion. According to the water pressure, constant pressure water supply is provided, reducing pressure fluctuations and avoiding energy waste.

[0135] The water supply temperature is an important factor in ensuring the cooling effect. According to the inlet and outlet water temperatures of the cooling tower 14, the rotational speed of the fan of the cooling tower 14 can be automatically adjusted, or the spray pump can be turned on, etc., to ensure that the outlet water temperature of the cooling tower 14 is constant and achieve the purpose of energy saving.

[0136] Real-time monitoring of water quality to ensure the quality of circulating water:

[0137] Hardness ions such as chloride ions, calcium ions, and magnesium ions in the water are monitored in real time to avoid pipeline scaling and corrosion of pipelines, which affect the service life of pipelines and production equipment, resulting in pipeline leakage and affecting water supply safety. Preferably, a corrosion and scale inhibitor device 13 is provided before the process water outlet pipeline enters the cooling tower 14. The upper computer 15 issues an instruction to the corrosion and scale inhibitor device 13 according to the monitoring results. For example, if the hardness is greater than 0.15 mmol / L, the system operates to reduce scaling. At the same time, side filtration is turned on to further soften the water quality, reduce hardness and impurities in the water. A bactericidal and algaecidal system can be set in the cold water tank. The upper computer 15 turns on the bactericidal and algaecidal system according to the monitoring data of total dissolved solids TDS and total phosphorus TP. When the values exceed the set values, it prevents the generation of algae. When the values are lower than the set values, the system is turned off. Optionally, the upper computer can also control the addition of bactericidal and algaecidal agents in the water tank by controlling the dosing device to control the generation of algae.

[0138] Optionally, the dosing method can also be selected to ensure the quality of circulating water. The upper computer 15 issues an instruction to the dosing device according to the monitoring results, and quantitatively adds corrosion inhibitors, scale inhibitors, algaecidal agents and other agents to the water tank 11 according to the volume of circulating water to ensure water quality.

[0139] Monitoring of water supply flow rate to ensure water supply safety and water saving purposes:

[0140] The water flow rate at the outlet of the water pump is monitored, and the production water consumption is fed back in real time. Alarms are given when the flow rate is too low or too high to ensure the normal water use of the production process. The upper computer 15 issues an instruction according to the flow rate data. When the flow rate is lower than the set value, the standby pump is started or the operating frequency of the water pump is increased. When it is higher than the set value, the operating frequency is reduced.

[0141] The production make-up water, the sewage discharge of the cooling tower 14, and the water volume of filtration and softening are measured to facilitate cost analysis and provide guidance for equipment replacement. For example, if the soft water production volume is lower than a certain value, measures such as replacing the ion exchange resin of the softening equipment are taken to increase the water production volume and reduce the operating cost.

[0142] Water supply pressure detection:

[0143] The glass production process requires a constant water supply pressure. Water pressure fluctuations will affect the stability of the production process. This system can adjust the pump frequency in a timely manner according to pressure fluctuations. Two pressure monitoring devices or two different monitoring signals are set at the pump outlet to prevent the pump from malfunctioning and the standby pump from starting due to the damage of one pressure monitoring device, which may lead to water supply pressure fluctuations and affect the stability of the production process.

[0144] Water level monitoring:

[0145] The water tank 11 is equipped with a water level monitoring device 112, which can replenish water in a timely manner when the water level drops to the replenishment level. An alarm is issued when the water level is lower than the lower limit, indicating abnormal water replenishment in the system or a large amount of water leakage in the pipeline, and manual treatment is required.

[0146] The water tower is equipped with a water level monitoring device 112. In case of power failure or other emergencies, corresponding measures can be taken in a timely manner according to the drop of the water level in the water tower. When the water level drops to 1 / 2 - 2 / 3, the cooling equipment should be taken out in time.

[0147] Treat the sewage and circulating water to achieve the purpose of water conservation:

[0148] The process effluent can be filtered and softened by the side filtration method to achieve the purpose of water conservation. Compared with using fresh water for side filtration, it can make full use of the water supply pressure without increasing the flow rate of the water supply pump, thus achieving the purpose of energy conservation. During the use of water-consuming equipment, various impurities and suspended substances may be mixed into the process effluent, and the water quality will gradually deteriorate with the increase of the use times. If the deteriorated process effluent is directly discharged and then a large amount of fresh water is replenished, it will cause waste of water resources. By filtering and softening the process effluent by the side filtration method, impurities and hardness components in the water can be removed, enabling the water to continue to circulate in the water-consuming equipment and reducing the amount of fresh water replenishment, thus achieving the purpose of water conservation. After passing through the water-consuming equipment, the process effluent usually still has a certain pressure, which is given by the energy initially provided by the water supply pump. When filtering the process effluent, this part of the remaining pressure can be utilized to push the water flow through the side filtration equipment without additional energy consumption to increase the water pressure.

[0149] By monitoring TDS and TP, the water quality can be understood in a timely manner, and treatment can be carried out in advance to inhibit the growth of algae, reduce the cleaning of algae in the later cooling tower 14, and ensure the normal use of production equipment.

[0150] The filtered and softened sewage and the sewage with relatively good quality can be used for flushing roads, washing sand, cleaning glass, etc. after treatment, and the circulating water is reused to achieve the purpose of water conservation.

[0151] Utilize the heat of the process effluent to achieve energy conservation:

[0152] The temperature of the treated process water is about 40°C to 50°C. By using a water source heat pump or other means for waste heat utilization, while the heat is utilized, the water temperature is reduced, achieving the purpose of water and energy conservation.

[0153] The upper computer 15 displays the voltage and current of the water pump and the cooling tower 14, shows the operating frequency of the water pump, and can remotely start and adjust the water pump and the fan on the upper computer 15. When the voltage and current exceed the set value, an alarm is given for fault analysis to facilitate quick problem finding.

[0154] Data is fed back to the upper computer 15:

[0155] Signals such as flow rate, pressure, temperature, water pump, cooling tower 14, water level, hardness, chloride ions, etc. are all fed back to the upper computer 15. The upper computer 15 makes timely feedback based on the data feedback. The upper computer 15 is equipped with a UPS to ensure it can still be used during a power outage. The above data does not require manual collection, saving a large amount of manpower. Only regular inspections are needed to ensure the safety and reliability of the system.

[0156] The main technical solutions of the present invention:

[0157] When the mass concentration of hardness ions in the circulating water is greater than 0.2 mmol / L (calculated as calcium carbonate), process equipment (such as equipment and pipelines for filtration in the circulating water system of a glass factory), water-using equipment, and cooling equipment are prone to scaling, resulting in uneven heating, poor cooling effect, and prone to water leakage in the cooling equipment, reducing safety. When the chloride ion content in the water is high, the pipeline is prone to pitting corrosion, causing pipeline leakage and affecting use. By monitoring chloride ions, hardness, TDS, and TP in the circulating water, and according to the data feedback, the water quality is adjusted in a timely manner to extend the service life of process equipment, cooling equipment, and pipelines, and reduce costs. Monitor the concentration of hardness ions such as chloride ions, calcium ions, and magnesium ions in the circulating water, feed them back to the upper computer 15, and perform sewage discharge or further softening treatment according to the set parameters.

[0158] Adopt dual pressure monitoring or two monitoring signals to accurately control the water supply pressure of the water pump and the start and stop of the standby pump to ensure stable water supply pressure.

[0159] The treated process water is used for adding water to the mixer in the raw material system, making full use of the hot water temperature to ensure the temperature of the raw material batching, while reducing the circulating water volume entering the cooling tower 14, reducing energy consumption and evaporation, achieving water and energy conservation. At the same time, it reduces the impurities entering the raw materials and improves the quality of the glass.

[0160] The system has a temperature setting and adjustment function with a temperature deviation of ±0.5°C. The water supply temperature is set by the host computer 15. The host computer 15 compares the water outlet temperature of the cooling tower 14 with the set temperature. If it is higher than the set temperature, the water temperature is reduced by methods such as increasing the fan speed or turning on the spray pump. If it is lower than the set temperature, the fan speed is reduced or the spray pump is turned off. The temperature is set according to needs, and the system automatically adjusts, which is convenient to change, provides constant-temperature water supply, avoids excessive cooling temperature and energy waste, and is also beneficial to production process control and ensures glass quality. The operation mode of the cooling tower 14 can also be comprehensively set and adjusted according to the process water outlet temperature and the water outlet temperature of the cooling tower 14.

[0161] The process water outlet temperature is utilized, and heat is utilized through methods such as water source heat pumps, which can be used to produce hot water and serve as the direct heat source or auxiliary heat source of direct hot water. It can also be used for heating pump rooms and other buildings, reducing the energy consumption of the cooling tower 14, while realizing heat recovery and achieving the purpose of energy conservation. In addition, the flow rate is monitored and the water consumption is fed back to facilitate cost accounting.

[0162] The secondary utilization of sewage effluent saves water costs.

[0163] There is no need for manual water quality detection and manual adjustment of equipment operation to control the water outlet temperature. Manual temperature adjustment is affected by the temperature difference between night and day, with frequent adjustments and unstable temperature control. Data such as temperature and water quality can be promptly fed back to the host computer 15, which can perform automatic processing and issue instructions without excessive manual intervention, reducing operating costs. The host computer 15 can also calculate the daily make-up water volume, sewage discharge volume, raw material water addition volume, electricity costs of the cooling tower 14 and water pumps, input data such as water and electricity costs, and accurately calculate the daily, monthly and annual operating costs. All alarm records can be queried, facilitating problem finding and solving.

[0164] When using a closed cooling device, inert gases such as nitrogen are introduced into the water tank 11 for sealing to ensure that the circulating water does not come into contact with the outside air. The oxygen content in the water is less, the scale is also less, the water quality is better, and basically no chemicals need to be added, with low operating costs.

[0165] When using an open cooling device, a corrosion and scale inhibition device 13 and a bactericidal and algaecidal system are adopted to control the water quality and minimize the control of water quality by simply adding chemicals, with stable water quality. Through on-line water quality monitoring, the labor cost is reduced and the data is fed back in a timely manner.

[0166] Through the utilization method of raw material water addition, the sewage discharge volume can be reduced, the water quality can be guaranteed, corrosion can be reduced, and the chemical addition volume can also be reduced. The present invention proposes a utilization method of the return water temperature of circulating water, which can make full use of the return water temperature, avoid energy waste, while reducing the power consumption and achieving energy conservation.

[0167] The present invention adopts the pressure backwater method, which does not require a hot water pump, reduces the number of pumps, and at the same time utilizes the water supply pressure to reduce the operation and later maintenance costs.

[0168] Considering that the blowdown volume of the open system is relatively large and blowdown is required when concentrated to a certain multiple, the present invention proposes a method for recycling circulating water. The return water of the circulating water is used to add water to the raw material system, solving the problem of blowdown. At the same time, the heat of the return water can be utilized, reducing the evaporation loss of water volume and power consumption, and basically achieving zero discharge. It can also be treated and used for greening and flushing roads, realizing the recycling of circulating water.

[0169] It should be noted that the content not described in detail in the specification of the present invention belongs to the well-known technology of those skilled in the art.

[0170] According to an embodiment of the present invention, an embodiment of a control method for a circulating water system in a glass factory is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer device such as a set of computer-executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0171] Figure 4 It is a schematic flowchart of a control method for a circulating water system in a glass factory according to an embodiment of the present invention.

[0172] As Figure 4 shown, an embodiment of the present invention provides a control method for a circulating water system in a glass factory. The control method for the circulating water system in the glass factory includes:

[0173] S101: Monitor the water level in the water tank through a water level monitoring device to obtain the current water level value.

[0174] In this embodiment, the water tank is used to store circulating water with a hardness value less than or equal to a preset hardness threshold.

[0175] S102: When the current water level value reaches the make-up water level, replenish water to the water tank.

[0176] S103: Monitor the temperature of the circulating water to obtain the first temperature value.

[0177] S104: Control the first temperature control device according to the first temperature value.

[0178] In this embodiment, the first temperature control device is used to control the temperature of the circulating water within a set range.

[0179] S105: Supply the circulating water in the water tank to the water-using equipment through the first outlet pipe of the circulating water pump.

[0180] S106: Cool the treated process effluent through a cooling tower to obtain cooling water, and supply the cooling water to the water tank.

[0181] In an alternative embodiment, the control method of the circulating water system of the glass factory further includes:

[0182] Filter and soften the production water through a filter softening device.

[0183] A make-up water valve is provided between the filter softening device and the water tank.

[0184] Monitor the hardness of the production water after filter softening treatment through a first hardness monitoring device to obtain a hardness value.

[0185] When it is determined that the hardness value is less than or equal to a preset hardness threshold, control the make-up water valve to open, and store the production water after filter softening treatment as circulating water in the water tank.

[0186] In an alternative embodiment, the control method of the circulating water system of the glass factory further includes: a water tower, which is provided between the circulating water pump and the water-using equipment.

[0187] In an alternative embodiment, the control method of the circulating water system of the glass factory further includes: a second effluent pipeline, which is provided between the water-using equipment and the corrosion and scale inhibition device.

[0188] The process effluent monitoring data obtained by monitoring the process effluent through a process effluent monitoring device. Control the corrosion and scale inhibition device according to the process effluent monitoring data.

[0189] In an alternative embodiment, the process effluent monitoring device includes: a second temperature monitoring device, a second pressure monitoring device, a second hardness monitoring device, and an ion monitoring device.

[0190] In an alternative embodiment, the cooling tower includes: a third effluent pipeline and a second temperature control device. The third effluent pipeline is provided with a third temperature monitoring device.

[0191] The third temperature value obtained by monitoring the outlet water temperature of the cooling tower through a third temperature monitoring device. Control the second temperature control device according to the third temperature value.

[0192] The embodiment of the present invention also provides a computer device. Please refer to Figure 5 , Figure 5 is a schematic hardware structure diagram of the computer device of the embodiment of the present invention, as Figure 5As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including a high-speed interface and a low-speed interface. Each component communicates with each other using different buses and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed within the computer device, including instructions stored in the memory or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In an alternative embodiment, if necessary, multiple processors and / or multiple buses can be used together with multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (such as an array of servers, a set of blade servers, or a multi-processor device). Figure 5 In the figure, a processor 10 is taken as an example.

[0193] The processor 10 can be a central processing unit, a network processor, or a combination thereof. Among them, the processor 10 can further include a hardware chip. The above hardware chip can be an application-specific integrated circuit, a programmable logic device, or a combination thereof. The above programmable logic device can be a complex programmable logic device, a field-programmable gate array, a generic array logic, or any combination thereof.

[0194] Among them, the memory 20 stores instructions executable by at least one processor 10, so that at least one processor 10 executes the method shown in the above embodiments.

[0195] The memory 20 can include a storage program area and a storage data area. Among them, the storage program area can store an operating device and application programs required for at least one function. The storage data area can store data created according to the use of the computer device. In addition, the memory 20 can include a high-speed random access memory, and can also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In an alternative embodiment, the memory 20 can optionally include a memory remotely set relative to the processor 10, and these remote memories can be connected to the computer device through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0196] The memory 20 can include a volatile memory, such as a random access memory. The memory can also include a non-volatile memory, such as a flash memory, a hard disk, or a solid-state drive. The memory 20 can also include a combination of the above types of memories.

[0197] The computer device further includes a communication interface 30 for the computer device to communicate with other devices or communication networks.

[0198] Embodiments of the present invention also provide a computer-readable storage medium. The method according to the embodiments of the present invention can be implemented in hardware, firmware, or be implemented as computer code that can be recorded on a storage medium, or be implemented as computer code that is originally stored in a remote storage medium or a non-transitory machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored as such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory, a random access memory, a flash memory, a hard disk, or a solid-state drive, etc. Further, the storage medium can also include a combination of the above-mentioned types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by the computer, the processor, or the hardware, the method shown in the above embodiments is implemented.

[0199] A part of the present invention can be applied as a computer program product, for example, computer program instructions. When executed by a computer, through the operation of the computer, the methods and / or technical solutions according to the present invention can be invoked or provided. Those skilled in the art should be able to understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Herein, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible by the computer.

[0200] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A glass factory circulating water system, characterized in that: include: A water pool, used to store circulating water with a hardness value less than or equal to a preset hardness threshold; the water pool is provided with a first temperature control device, a water level monitoring device and a first temperature monitoring device; The water level monitoring device is used to upload the current water level value obtained by monitoring the water level in the water pool to the host computer; the host computer is used to replenish water to the water pool when the current water level value reaches the water replenishment level; The first temperature monitoring device is used to upload a first temperature value obtained by monitoring the temperature of the circulating water to a host computer; the host computer is used to control the first temperature control device according to the first temperature value; The first temperature control device is used to control the temperature of the circulating water within a set range; A circulating water pump, wherein the circulating water pump is provided with a first water outlet pipe; the circulating water pump is used to supply the circulating water in the pool to the water-using equipment through the first water outlet pipe; A corrosion and scale inhibition device, used for treating the process effluent of the water-using equipment; The corrosion and scale inhibition device is connected to a cooling tower; the cooling tower is connected to the water pool; The cooling tower is used to cool the treated process water to obtain cooling water, and the cooling water is supplied to the water pool.

2. The system according to claim 1, characterized in that The first water outlet pipe is provided with a first pressure monitoring device, a pressure relief device and a flow monitoring device; The first pressure monitoring device, the pressure relief device and the flow monitoring device are all connected to the host computer.

3. The system according to claim 2, characterized in that The system further comprises: Filtration and softening device, used for filtering and softening the produced water; A water replenishment valve disposed between the filtering and softening device and the water pool; The first hardness monitoring device is used to monitor the hardness of the production water after filtering and softening treatment, obtain the hardness value, and upload the hardness value to the host computer; the host computer is used to control the water replenishment valve to open when it is determined that the hardness value is less than or equal to the preset hardness threshold, and store the production water after filtering and softening treatment as circulating water in the water pool.

4. The system according to claim 3, characterized in that The system further comprises: The water tower is arranged between the circulating water pump and the water-using equipment.

5. The system according to claim 4, characterized in that The system further comprises: A second water outlet pipe is provided between the water-using equipment and the corrosion and scale inhibition device; The second outlet water pipeline is provided with a process outlet water monitoring device; the process outlet water monitoring device is used to upload the process outlet water monitoring data obtained by monitoring the process outlet water to the host computer; the host computer is used to control the corrosion and scale inhibition device according to the process outlet water monitoring data.

6. The system according to claim 5, characterized in that The process water outlet monitoring device comprises: a second temperature monitoring device, a second pressure monitoring device, a second hardness monitoring device and an ion monitoring device; The second temperature monitoring device, the second pressure monitoring device, the second hardness monitoring device and the ion monitoring device are all connected to the host computer.

7. The system according to claim 6, characterized in that The cooling tower comprises: a third water outlet pipe and a second temperature control device; the third water outlet pipe is provided with a third temperature monitoring device; The third temperature monitoring device is used to upload a third temperature value obtained by monitoring the outlet water temperature of the cooling tower to a host computer; the host computer is used to control the second temperature control device according to the third temperature value.

8. A control method for a circulating water system in a glass factory, characterized in that: include: The water level in the water pool is monitored by a water level monitoring device to obtain the current water level value; the water pool is used to store circulating water with a hardness value less than or equal to a preset hardness threshold; When the current water level reaches the water replenishment level, replenishing water to the pool; Monitoring the temperature of the circulating water to obtain a first temperature value; controlling a first temperature control device according to the first temperature value; The first temperature control device is used to control the temperature of the circulating water within a set range; The circulating water in the water pool is supplied to the water-using equipment through the first water outlet pipe of the circulating water pump; The treated process effluent is cooled by a cooling tower to obtain cooling water, which is then supplied to the water pool.

9. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the control method described in claim 8 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the control method described in claim 8.

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