Glass kiln circulating cooling water control system and control method

Abstract

The invention relates to the technical field of kiln circulating water control, in particular to a glass kiln circulating cooling water control system and method. The system comprises a water storage module, a water outlet of the water storage module is communicated with a circulating water inlet of the water storage module through a circulating pipeline, and a circulating power module and a heat exchange module are arranged on the circulating pipeline; a monitoring module is arranged on the circulating pipeline and located between the circulating power module and the heat exchange module. The circulating power module, the heat exchange module and the monitoring module are all in signal connection with the control unit, and the control unit adjusts the running state of the circulating power module according to temperature information monitored by the monitoring module so that the flow and pressure of circulating water can be matched with the real-time heat load of the glass kiln. The technical problems that in the prior art, the cooling water flow cannot be matched with the real-time thermal load through a constant flow adjusting mode, so that the quality of a glass finished product is poor, and energy is wasted due to the fact that a water pump needs to operate at full load for a long time in the adjusting process are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of kiln circulating water control technology, and in particular to a glass kiln circulating cooling water control system and control method. Background Technology

[0002] Glass furnaces are the core thermal equipment in glass production. They are industrial furnaces that use fuel combustion or electrical heating to create a high-temperature environment to melt, clarify, and homogenize glass raw materials such as quartz sand and soda ash, ultimately producing a uniform molten glass that meets forming requirements. During the glass furnace production process, the high-temperature molten glass causes continuous thermal shock to the furnace's refractory materials, leading to shortened equipment lifespan, increased energy consumption, and potential safety hazards.

[0003] Currently, enterprises commonly use circulating cooling water to cool kilns through constant flow rates or empirical adjustments. For example, patent document CN217153829U discloses an automatic monitoring and adjustment device for kiln circulating water. This device includes a pipeline structure, a proportional valve, a first monitoring end, a main controller, and a second monitoring end. The pipeline structure serves as the directional transport carrier for the circulating water. The proportional valve, the first monitoring end, and the second monitoring end are all located on the pipeline structure. The first monitoring end is located upstream of the proportional valve along the directional transport of the circulating water, and the second monitoring end is located downstream. The control input of the main controller is connected to the first and second monitoring ends, and its control output is connected to the proportional valve. In operation, the device monitors the circulating water flow rate and pressure at the inlet of the pipeline structure through the first monitoring end, and the circulating water flow rate and pressure at the outlet of the pipeline structure through the second monitoring end. The main controller adjusts the opening of the proportional valve based on the monitored data.

[0004] However, the aforementioned automatic monitoring and regulation device for kiln circulating water still has significant technical defects and limitations: 1. Low matching degree between cooling water flow rate and real-time heat load of the kiln: The constant flow control scheme mainly relies on feedback regulation of water flow parameters (such as flow rate and pressure) in the pipeline, rather than directly responding to the real-time heat load state of the kiln body. This results in a low matching degree between the cooling water supply and the actual heat dissipation demand of the kiln, causing local overheating or overcooling of the kiln body, affecting the temperature field stability of the glass melting process, and ultimately damaging the uniformity of glass product quality; 2. Serious energy waste: Under the constant flow control logic, the water pump usually needs to maintain a high load operation for a long time to ensure that it can provide a flow rate of no less than the set value under any operating conditions. When the kiln heat load is low, the excess cooling water can only be returned through bypass or other means, resulting in a large amount of ineffective power loss and low system operating efficiency, which contradicts the urgent need for energy conservation and consumption reduction in the current industrial field. Summary of the Invention

[0005] This invention provides a circulating cooling water control system for glass kilns to solve the technical problems in the prior art where the constant flow regulation mode cannot match the cooling water flow rate with the real-time heat load, resulting in poor quality of finished glass products, and the need for the water pump to run at full load for a long time during the regulation process, resulting in energy waste; the purpose of this invention is also to provide a circulating cooling water control method for glass kilns.

[0006] To solve the above problems, the glass furnace circulating cooling water control system provided by the present invention adopts the following technical solution: A circulating cooling water control system for a glass furnace includes a water storage module. The outlet of the water storage module is connected to the circulating water inlet through a circulating pipeline. A circulating power module and a heat exchange module are sequentially arranged on the circulating pipeline along the flow direction of the circulating water. A monitoring module is installed on the circulation pipeline. The monitoring module is located between the circulation power module and the heat exchange module to monitor the flow rate, pressure and temperature of the circulating water in the circulation pipeline. The circulating power module, the heat exchange module, and the monitoring module are all connected to the control unit via signals. The control unit adjusts the operating status of the circulating power module according to the temperature information monitored by the monitoring module, so that the flow rate and pressure of the circulating water match the real-time heat load of the glass furnace.

[0007] The beneficial effects of the glass furnace circulating cooling water control system provided by this invention are: This application monitors the temperature, flow rate, and pressure of circulating water through a monitoring module, directly reflecting the real-time heat load changes of the kiln (when the heat load increases, the circulating water heats up faster; when the heat load decreases, the circulating water heats up more slowly), replacing the traditional constant flow mode design without real-time feedback. After receiving the monitoring data, the control unit calculates the real-time heat load demand based on the temperature change, and then adjusts the operating status (speed and frequency) of the circulating power module to change the circulating water flow rate—increasing the flow rate when the heat load is high and decreasing the flow rate when the heat load is low, achieving a precise match between the flow rate and the heat load. This ensures that each cooling part of the kiln receives a cooling intensity that matches the local heat load, avoiding the local overheating (affecting kiln safety and glass quality) or overcooling (causing energy waste) that may occur under the traditional constant flow mode.

[0008] In this application, the circulating power module no longer maintains a constant full load state for a long time. Instead, it aims to match the heat load demand and dynamically adjusts the operating power of the circulating power module through the control unit: when the heat load is low, the control unit lowers the operating parameters of the circulating power module, reducing the circulating water flow and reducing the module's energy consumption; the operating power is only increased as needed when the heat load is high, avoiding the ineffective energy consumption of full load output and excess flow return when the heat load is low, thus achieving energy saving and consumption reduction.

[0009] Through the above settings, the present invention effectively solves the technical problems in the prior art where the constant flow regulation mode cannot match the cooling water flow with the real-time heat load, resulting in poor quality of finished glass products, and the need for the water pump to run at full load for a long time during the regulation process, resulting in energy waste.

[0010] Furthermore, the circulation pipeline includes a first circulation pipe section, a second circulation pipe section, and a third circulation pipe section connected sequentially along the direction of circulation water delivery. The first circulation pipe section is used to connect the water outlet to the inlet of the circulation power module, the second circulation pipe section is used to connect the outlet of the circulation power module to the inlet of the heat exchange module, and the third circulation pipe section is used to connect the outlet of the heat exchange module to the circulation water inlet.

[0011] Furthermore, the circulating power module includes multiple pumping units arranged in parallel. Each pumping unit includes a circulating water pump and a control valve for controlling the on / off state of the pumping unit. The inlet end of each pumping unit is connected to the first circulating pipe section, and its outlet end is connected to the second circulating pipe section.

[0012] Beneficial effects: Multiple pumping units are connected in parallel. If any pumping unit (circulating water pump or control valve) fails, the faulty unit can be isolated by closing the corresponding control valve, while the remaining normal units can still maintain circulating water supply. This solves the problem of shutdown upon failure in traditional single-pump systems, ensuring continuous and stable operation of the glass furnace cooling system and avoiding production losses such as furnace overheating and glass product scrap due to shutdown. Furthermore, when a single pumping unit fails, it is not necessary to shut down the entire circulating power module; only the corresponding control valve needs to be closed for repair and replacement. This significantly shortens system maintenance downtime, reduces the impact on continuous glass furnace production, and lowers production and maintenance costs.

[0013] Furthermore, the heat exchange module includes multiple heat exchange units arranged in parallel. Each heat exchange unit includes a heat exchanger and a control valve for controlling the on / off state of the heat exchange unit. The inlet end of each heat exchange unit is connected to the second circulation pipe section, and its outlet end is connected to the third circulation pipe section.

[0014] Beneficial effects: With multiple heat exchange units connected in parallel, if any heat exchange unit (heat exchanger or control valve) fails, the faulty unit can be quickly isolated by closing the corresponding control valve, while the remaining normal units can still maintain the heat exchange function of the circulating water. This solves the problem of shutdown due to failure of traditional single heat exchanger systems, thereby ensuring the continuous operation of the cooling system and preventing local overheating of the kiln body, damage to refractory materials, or quality defects in finished glass products due to temperature fluctuations caused by heat exchange interruption. This reduces production safety hazards and the risk of product scrap.

[0015] Furthermore, a filter module is provided on the third circulation pipe section. The filter module is located between the heat exchange module and the circulation water inlet to filter impurities in the circulation water in the circulation pipe.

[0016] Furthermore, the filtration module includes multiple filtration units arranged in parallel. Each filtration unit includes a filter and a control valve for controlling the on / off state of the filtration unit. The inlet end of each filtration unit is connected to the inlet of the heat exchange module, and its outlet end is connected to the third circulation pipe section.

[0017] Beneficial effects: With multiple filtration units connected in parallel, if any filtration unit (filter or control valve) becomes clogged or malfunctions, the faulty unit can be quickly isolated by closing the corresponding control valve, while the remaining normal units can still maintain the filtration function of the circulating water. This solves the problem of shutdown due to failure of traditional single-filter systems, avoids impurities in the circulating water from entering core components such as water pumps and heat exchangers due to filtration interruption, prevents pipeline blockage, equipment wear or reduced heat exchange efficiency, ensures the stable operation of the kiln cooling system, and reduces the risk of production interruption.

[0018] Furthermore, the monitoring module includes a flow meter, a pressure gauge, and a thermometer installed on the second circulation pipe section and in each of the heat exchange units.

[0019] Furthermore, a flow meter is provided at the circulating water inlet to detect the flow rate of the circulating water entering the circulating water inlet.

[0020] Beneficial effects: The flow rate data at the circulating water inlet can directly reflect the total amount of water entering the water storage module. By comparing it with the flow rate data of the circulating water flowing out of the water storage module, it can be determined whether there are problems such as leakage in the circulating pipeline or flow loss. When there is a mismatch between the total amount of water entering the water storage module and the flow rate of the circulating water flowing out of the water storage module, an early warning can be issued in time to avoid the failure of kiln cooling due to insufficient water and to ensure the dynamic balance of water in the system.

[0021] To solve the above problems, the glass furnace circulating cooling water control method provided by the present invention adopts the following technical solution: A method for controlling the circulating cooling water of a glass furnace, implemented using the aforementioned glass furnace circulating cooling water control system, includes the following steps: S1: The monitoring module acquires the flow rate, pressure, and temperature of the circulating water in the circulation pipeline in real time; S2: The control unit, based on the circulating water flow rate, circulating water pressure, and circulating water temperature measured in step S1, ... To calculate the mass of circulating water participating in heat exchange per unit time, the formula is as follows: For the quality of circulating water, The flow rate of the circulating water. For time; by Calculate the real-time heat load of the glass furnace, where, For real-time heat load, The specific heat capacity of the circulating water. For the quality of circulating water, This represents the temperature change of the circulating water during two consecutive cycles. S3: The control unit, based on the real-time heat load of the glass furnace obtained in step S2, [makes decisions / actions]. and Calculate the water flow rate and head of the circulating hydrodynamic module, where, This represents the current output flow rate of the circulating power module. To match the target flow rate of the circulating power module with the real-time heat load, This represents the current operating frequency of the cycle power module. To match the target operating frequency of the circulating power module to the real-time heat load, The head of the current cycle power module, To match the target head of the circulating power module with the real-time heat load, and to control the operating status of the circulating power module based on the calculated target operating frequency and target head; S4: The control unit, based on the target head obtained in step S3, ... Calculate the target outlet pressure of the circulating power module, where, The target outlet pressure of the circulating power module, To match the target head of the circulating power module to the real-time heat load, The density of the circulating water, The acceleration due to gravity is compared with the real-time circulating water pressure collected by the monitoring module to verify whether the operation of the circulating power module meets the standards.

[0022] The beneficial effects of the glass furnace circulating cooling water control method provided by this invention are: First, the flow rate, pressure, and temperature of the circulating water in the circulation pipeline are acquired in real time through the monitoring module, providing accurate basic data for subsequent calculations and analysis.

[0023] Then, based on the acquired circulating water flow rate, pressure, and temperature, the control unit first uses the formula... Calculate the mass of circulating water participating in heat exchange per unit time, and then combine... Accurately calculating the real-time heat load of the glass furnace allows for timely and accurate understanding of the furnace's heat demand at different times, replacing the blind water supply without heat load perception in the traditional constant flow mode.

[0024] Then, the control unit calculates the real-time heat load using the formula... and The water flow rate and head of the circulating hydrodynamic module are calculated, and then the target operating frequency and target head are determined. The operating status of the circulating hydrodynamic module is controlled based on the calculation results. This dynamic adjustment method allows the cooling water flow rate to change in real time according to the real-time heat load of the glass furnace, rather than operating at full load for a long period of time. On the one hand, it ensures that the cooling water flow rate matches the heat load, thereby improving the quality of the finished glass. On the other hand, it avoids unnecessary energy consumption, thus effectively solving the energy waste problem caused by the long-term full-load operation of water pumps in existing technologies.

[0025] Finally, the control unit calculates the target outlet pressure of the circulating power module based on the target head and compares it with the real-time circulating water pressure collected by the monitoring module to verify whether the circulating power module is operating within the specified limits. This verification mechanism ensures that the circulating power module operates according to the calculated reasonable parameters, further guaranteeing the effective use of energy and avoiding energy waste caused by inaccurate operating parameters.

[0026] In summary, the present invention effectively solves the technical problems in the prior art where the constant flow regulation mode cannot match the cooling water flow rate with the real-time heat load, resulting in poor glass product quality, and the need for the water pump to run at full load for a long time during the regulation process, resulting in energy waste.

[0027] Furthermore, in the circulating power module, when the currently used pumping unit fails, the control unit controls any pumping unit connected in parallel with the currently used pumping unit to start, so as to ensure the normal operation of the system; in the heat exchange module, when the currently used heat exchange unit fails, the control unit controls any heat exchange unit connected in parallel with the currently used heat exchange unit to start, so as to ensure the normal operation of the system; in the filtration module, when the currently used filtration unit fails, the control unit controls any filtration unit connected in parallel with the currently used filtration unit to start, so as to ensure the normal operation of the system. Attached Figure Description

[0028] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 This is a schematic diagram of the circulating cooling water control system for a glass furnace provided by the present invention; Figure 2 The flowchart shows the circulating cooling water control method for glass furnaces provided by the present invention.

[0029] Explanation of reference numerals in the attached figures: 1. Water storage module; 2. Circulating water inlet; 3. First circulation pipe section; 4. Second circulation pipe section; 5. Third circulation pipe section; 6. Circulating water pump one; 7. Circulating water pump two; 8. Circulating water pump three; 9. Heat exchanger one; 10. Heat exchanger two; 11. Control valve; 12. Filter one; 13. Filter two; 14. Flow meter; 15. Pressure gauge; 16. Thermometer; 17. Inlet valve one; 18. Inlet valve two; 19. Liquid level gauge. Detailed Implementation

[0030] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0031] An embodiment of the glass furnace circulating cooling water control system provided by the present invention: like Figure 1 As shown, the glass furnace circulating cooling water control system includes a water storage module 1. The outlet of the water storage module 1 is connected to its circulating water inlet 2 via a circulating pipeline. A circulating power module and a heat exchange module are sequentially arranged along the flow direction of the circulating water on the circulating pipeline. In addition, a monitoring module is also installed on the circulating pipeline between the circulating power module and the heat exchange module to monitor the flow rate, pressure, and temperature of the circulating water in the circulating pipeline.

[0032] The circulating power module, heat exchange module, and monitoring module are all connected to the control unit. The control unit adjusts the operating status of the circulating power module according to the temperature information monitored by the monitoring module so that the flow rate and pressure of the circulating water match the real-time heat load of the glass furnace.

[0033] Regarding water storage module 1. For example... Figure 1 As shown, in this embodiment, the water storage module 1 is connected to two water inlet pipes, and the two water inlet pipes are respectively equipped with a water inlet valve 17 and a water inlet valve 18. The water storage module 1 is also equipped with a liquid level detector 19 to detect the water level in the water storage module 1.

[0034] Regarding the circulation pipeline: The circulation pipeline includes a first circulation pipe section 3, a second circulation pipe section 4, and a third circulation pipe section 5 connected sequentially along the direction of circulation water delivery. The first circulation pipe section 3 is used to connect the outlet to the inlet of the circulation power module, the second circulation pipe section 4 is used to connect the outlet of the circulation power module to the inlet of the heat exchange module, and the third circulation pipe section 5 is used to connect the outlet of the heat exchange module to the circulation water inlet 2.

[0035] Regarding the circulating power module: The circulating power module includes multiple pumping units arranged in parallel. Each pumping unit includes a circulating water pump and a control valve 11 for controlling the on / off state of the pumping unit. The inlet end of each pumping unit is connected to the first circulating pipe section 3, and its outlet end is connected to the second circulating pipe section 4.

[0036] like Figure 1 As shown, in this embodiment, there are three pumping units: pumping unit one, pumping unit two, and pumping unit three. Pumping unit one includes a circulating water pump one 6 and a control valve 11 for controlling the on / off state of pumping unit one; pumping unit two includes a circulating water pump two 7 and a control valve 11 for controlling the on / off state of pumping unit two; pumping unit three includes a circulating water pump three 8 and a control valve 11 for controlling the on / off state of pumping unit three.

[0037] Regarding the heat exchange module: The heat exchange module includes multiple heat exchange units arranged in parallel. Each heat exchange unit includes a heat exchanger and a control valve 11 for controlling the on and off of the heat exchange unit. The inlet end of each heat exchange unit is connected to the second circulation pipe section 4, and its outlet end is connected to the third circulation pipe section 5.

[0038] like Figure 1 As shown, in this embodiment, there are two heat exchange units, namely heat exchange unit one and heat exchange unit two. Heat exchange unit one includes heat exchanger one 9 and control valve 11 for controlling the on and off of heat exchange unit one, and heat exchange unit two includes heat exchanger two 10 and control valve 11 for controlling the on and off of heat exchange unit two.

[0039] Regarding the monitoring module: The monitoring module includes a flow meter 14, a pressure gauge 15 installed on the second circulation pipe section 4, and a thermometer 16 installed in each heat exchange unit.

[0040] like Figure 1 As shown in this embodiment, thermometers 16 are installed at both the inlet and outlet of the heat exchanger in each heat exchange unit. When the temperature data collected by the thermometer 16 at the heat exchanger inlet changes abruptly compared to the temperature data collected by the thermometer 16 at the heat exchanger outlet, the heat exchanger is determined to be faulty. For example, if the temperature collected by the thermometer 16 at the heat exchanger inlet is 60℃~70℃, while the temperature collected by the thermometer 16 at the heat exchanger outlet is 80℃, this indicates that the heat exchanger has malfunctioned.

[0041] In addition, a filter module is installed on the third circulation pipe section 5. The filter module is located between the heat exchange module and the circulating water inlet 2 to filter impurities in the circulating water in the circulation pipe. The filter module includes multiple filter units arranged in parallel. Each filter unit includes a filter and a control valve 11 for controlling the on and off of the filter unit. The inlet end of each filter unit is connected to the outlet of heat exchanger 9 / heat exchanger 10, and its outlet end is connected to the third circulation pipe section 5.

[0042] like Figure 1As shown, in this embodiment, there are two filter units, namely filter unit one and filter unit two. Filter unit one includes filter one 12 and control valve 11 for controlling the on and off of filter unit one, and filter unit two includes filter two 13 and control valve 11 for controlling the on and off of filter unit two.

[0043] like Figure 1 As shown, in this embodiment, a flow meter 14 is installed at the circulating water inlet 2 to detect the flow rate of the circulating water entering the circulating water inlet 2. Flow meters 14 are also installed at the outlets of filter unit one and filter unit two. When the difference between the circulating water flow rate measured by the flow meter 14 installed on the second circulating pipe section 4 and the circulating water flow rate measured by the flow meter 14 at the outlet of filter one 12 / filter two 13 is less than 1% of the flow rate measured by the flow meter 14 on the second circulating pipe section 4, and the difference lasts for more than 1 minute, it is determined that the circulating pipe has malfunctioned.

[0044] It should be noted that in this application, when the water flow rate and water pressure measured by the flow meter 14 and pressure meter 15 installed on the second circulation pipe section 4 deviate from the set value by more than 5%, the current circulation water pump is judged to be faulty.

[0045] The working principle of the glass furnace circulating cooling water control method provided by this invention is as follows: First, open inlet valve 17 and / or inlet valve 2 18 to supply water to the water storage module 1. When the level gauge 19 detects that the water level in the water storage module 1 meets the water circulation requirements, close inlet valve 17 and / or inlet valve 2 18. Then, the circulating water from the water storage module 1 enters the circulation power module through the first circulation pipe section 3, and after being pressurized by circulating water pump 1 6 / circulating water pump 2 7 / circulating water pump 3 8, it flows into the second circulation pipe section 4. After that, the circulating water flows sequentially through heat exchanger 1 9 / heat exchanger 2 10, filter 1 12 / filter 2 13, and finally flows back to the circulation module from the circulating water inlet 2.

[0046] During the circulation of the circulating water, the flow meter 14 and pressure gauge 15 on the second circulation pipe section 4 collect the flow rate and pressure data of the circulating water in real time. The thermometer 16 at the inlet of heat exchanger 19 / heat exchanger 20 collects the temperature information of the circulating water. Based on the measured circulating water flow rate, circulating water pressure, and circulating water thermometer 16, the mass of circulating water participating in heat exchange per unit time is calculated, and the real-time heat load of the glass furnace is calculated. Then, the control unit controls the operating frequency and head of circulating water pump 16 / circulating water pump 27 / circulating water pump 38 according to the calculated real-time heat load to meet the cooling requirements.

[0047] An embodiment of the circulating cooling water control method for glass furnaces provided by the present invention: like Figure 2As shown, the glass furnace circulating cooling water control method, implemented using the aforementioned glass furnace circulating cooling water control system, includes the following steps: S1: The monitoring module acquires the flow rate, pressure, and temperature of the circulating water in the circulation pipeline in real time; S2: The control unit, based on the circulating water flow rate, circulating water pressure, and circulating water temperature measured in step S1, ... To calculate the mass of circulating water participating in heat exchange per unit time, the formula is as follows: For the quality of circulating water, The flow rate of the circulating water. For time; by Calculate the real-time heat load of the glass furnace, where, For real-time heat load, The specific heat capacity of the circulating water. For the quality of circulating water, This represents the temperature change of the circulating water during two consecutive cycles. S3: The control unit, based on the real-time heat load of the glass furnace obtained in step S2, [makes decisions / actions]. and Calculate the water flow rate and head of the circulating hydrodynamic module, where, This represents the current output flow rate of the circulating power module. To match the target flow rate of the circulating power module with the real-time heat load, This represents the current operating frequency of the cycle power module. To match the target operating frequency of the circulating power module to the real-time heat load, The head of the current cycle power module, To match the target head of the circulating power module with the real-time heat load, and to control the operating status of the circulating power module based on the calculated target operating frequency and target head; S4: The control unit, based on the target head obtained in step S3, ... Calculate the target outlet pressure of the circulating power module, where, The target outlet pressure of the circulating power module, To match the target head of the circulating power module to the real-time heat load, The density of the circulating water, The acceleration due to gravity is compared with the real-time circulating water pressure collected by the monitoring module to verify whether the operation of the circulating power module meets the standards.

[0048] In the circulating power module, if the currently used pumping unit fails, the control unit controls any pumping unit connected in parallel with the currently used pumping unit to start, so as to ensure the normal operation of the system; in the heat exchange module, if the currently used heat exchange unit fails, the control unit controls any heat exchange unit connected in parallel with the currently used heat exchange unit to start, so as to ensure the normal operation of the system; in the filtration module, if the currently used filtration unit fails, the control unit controls any filtration unit connected in parallel with the currently used filtration unit to start, so as to ensure the normal operation of the system.

[0049] In step S4, if the target outlet water pressure is less than the real-time circulating water pressure, the frequency of the circulating power module needs to be increased.

[0050] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0051] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A circulating cooling water control system for a glass furnace, comprising a water storage module, wherein the outlet of the water storage module is connected to the circulating water inlet via a circulating pipeline, characterized in that, The circulation pipeline is equipped with a circulation power module and a heat exchange module in sequence along the flow direction of the circulating water. A monitoring module is installed on the circulation pipeline. The monitoring module is located between the circulation power module and the heat exchange module to monitor the flow rate, pressure and temperature of the circulating water in the circulation pipeline. The circulating power module, the heat exchange module, and the monitoring module are all connected to the control unit via signals. The control unit adjusts the operating status of the circulating power module according to the temperature information monitored by the monitoring module, so that the flow rate and pressure of the circulating water match the real-time heat load of the glass furnace.

2. The glass furnace circulating cooling water control system according to claim 1, characterized in that, The circulation pipeline includes a first circulation pipe section, a second circulation pipe section, and a third circulation pipe section connected sequentially along the direction of circulation water delivery. The first circulation pipe section is used to connect the water outlet to the inlet of the circulation power module, the second circulation pipe section is used to connect the outlet of the circulation power module to the inlet of the heat exchange module, and the third circulation pipe section is used to connect the outlet of the heat exchange module to the circulation water inlet.

3. The glass furnace circulating cooling water control system according to claim 2, characterized in that, The circulating power module includes multiple pumping units arranged in parallel. Each pumping unit includes a circulating water pump and a control valve for controlling the on / off state of the pumping unit. The inlet end of each pumping unit is connected to the first circulating pipe section, and its outlet end is connected to the second circulating pipe section.

4. The glass furnace circulating cooling water control system according to claim 2, characterized in that, The heat exchange module includes multiple heat exchange units arranged in parallel. Each heat exchange unit includes a heat exchanger and a control valve for controlling the on and off of the heat exchange unit. The inlet end of each heat exchange unit is connected to the second circulation pipe section, and its outlet end is connected to the third circulation pipe section.

5. The glass furnace circulating cooling water control system according to claim 2, characterized in that, A filter module is installed on the third circulation pipe section. The filter module is located between the heat exchange module and the circulation water inlet to filter impurities in the circulation water in the circulation pipe.

6. The glass furnace circulating cooling water control system according to claim 5, characterized in that, The filtration module includes multiple filtration units arranged in parallel. Each filtration unit includes a filter and a control valve for controlling the on / off state of the filtration unit. The inlet end of each filtration unit is connected to the outlet end of the heat exchange module, and its outlet end is connected to the third circulation pipe section.

7. The glass furnace circulating cooling water control system according to any one of claims 2 to 6, characterized in that, The monitoring module includes a flow meter, a pressure gauge, and a thermometer installed on the second circulation pipe section and in each of the heat exchange units.

8. The glass furnace circulating cooling water control system according to any one of claims 1 to 6, characterized in that, The circulating water inlet is equipped with a flow meter to detect the flow rate of circulating water entering the circulating water inlet.

9. A method for controlling the circulating cooling water of a glass furnace, characterized in that, The glass furnace circulating cooling water control system according to any one of claims 1 to 8 is implemented, comprising the following steps: S1: The monitoring module acquires the flow rate, pressure, and temperature of the circulating water in the circulation pipeline in real time; S2: The control unit, based on the circulating water flow rate, circulating water pressure, and circulating water temperature measured in step S1, ... To calculate the mass of circulating water participating in heat exchange per unit time, the formula is as follows: For the quality of circulating water, The flow rate of the circulating water. For time; by Calculate the real-time heat load of the glass furnace, where, For real-time heat load, The specific heat capacity of the circulating water. For the quality of circulating water, This represents the temperature change of the circulating water during two consecutive cycles. S3: The control unit, based on the real-time heat load of the glass furnace obtained in step S2, [makes decisions / actions]. and Calculate the water flow rate and head of the circulating hydrodynamic module, where, This represents the current output flow rate of the circulating power module. To match the target flow rate of the circulating power module with the real-time heat load, This represents the current operating frequency of the cycle power module. To match the target operating frequency of the circulating power module to the real-time heat load, The head of the current cycle power module, To match the target head of the circulating power module with the real-time heat load, and to control the operating status of the circulating power module based on the calculated target operating frequency and target head; S4: The control unit, based on the target head obtained in step S3, ... Calculate the target outlet pressure of the circulating power module, where, The target outlet pressure of the circulating power module, To match the target head of the circulating power module to the real-time heat load, The density of the circulating water, The acceleration due to gravity is compared with the real-time circulating water pressure collected by the monitoring module to verify whether the operation of the circulating power module meets the standards.

10. The method for controlling circulating cooling water in a glass furnace according to claim 9, characterized in that, In the circulating power module, if the currently used pumping unit fails, the control unit controls any pumping unit connected in parallel with the currently used pumping unit to start, so as to ensure the normal operation of the system; in the heat exchange module, if the currently used heat exchange unit fails, the control unit controls any heat exchange unit connected in parallel with the currently used heat exchange unit to start, so as to ensure the normal operation of the system; in the filtration module, if the currently used filtration unit fails, the control unit controls any filtration unit connected in parallel with the currently used filtration unit to start, so as to ensure the normal operation of the system.

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