A glass fiber waste heat recovery and energy storage system based on self-adjustment of heat pipe position

Abstract

This invention discloses a glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment, comprising a heat source channel, an adjustable heat pipe heat exchange assembly, a circulating heat exchange pipeline, an energy storage insulation box, a sensor assembly, and a control cabinet. The adjustable heat pipe heat exchange assembly includes a heat pipe body, a drive mechanism, a water-side heat exchange structure, and a telescopic connector. The heat pipe body is at least partially disposed within the waste heat channel of glass fiber production. The drive mechanism is used to adjust the insertion depth, proximity distance, or heat exchange position of the heat pipe body relative to the heat source channel. The water-side heat exchange structure is used to allow circulating water or preparation water to absorb the waste heat transferred by the heat pipe body. The sensor assembly collects data on heat source temperature, circulating water temperature, energy storage insulation box water temperature, pipeline pressure, and flow rate. The control cabinet, based on the collected data, controls the heat pipe position, circulating pump operating frequency, and electric regulating valve opening, allowing heated water to enter the energy storage insulation box and be used in the glass fiber impregnation agent preparation process. This invention can automatically adjust the heat exchange intensity according to changes in heat source temperature and water load, improving waste heat recovery efficiency and hot water supply stability.

Description

Technical Field

[0001] This invention relates to the field of energy-saving and consumption-reducing technology in glass fiber production, and in particular to a glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment. Background Technology

[0002] The glass fiber production process typically includes steps such as batch melting, drawing, sizing agent coating, drying, and subsequent product processing. During this process, melting furnaces, flue gas ducts, hot air systems, drying equipment, and some auxiliary thermal equipment continuously generate significant amounts of medium- and low-temperature waste heat. Simultaneously, the preparation of sizing agents, equipment cleaning, and process insulation in glass fiber production require a stable supply of hot water. In particular, the water used for sizing agent preparation typically needs to be maintained within a specific temperature range to ensure the stability of the sizing agent components' dissolution, dispersion, and performance. Therefore, recovering the waste heat generated during glass fiber production and using it for hot water preparation and energy storage has significant energy-saving and consumption-reducing value.

[0003] In existing technologies, waste heat utilization methods in fiberglass production sites mainly include flue gas heat exchange, circulating water heat exchange, electric heating compensation, and hot water storage tank insulation. Some systems use fixed heat exchangers to transfer heat from high-temperature flue gas or hot air to circulating water, and then send the heated circulating water into a storage tank or process water pipeline for use. Although this type of system can achieve a certain degree of waste heat utilization, it still has many shortcomings in actual operation.

[0004] First, waste heat sources in fiberglass production sites are dispersed, and their temperature, heat flux density, and discharge location fluctuate significantly under different equipment and operating conditions. For example, high-temperature areas within heat source channels may change with production load, air volume, valve opening, or equipment operating status. Existing fixed heat exchangers or fixed-installation heat exchange tube assemblies typically only exchange heat at preset locations, failing to adjust the position of heat exchange components in a timely manner according to changes in heat source location and heat intensity, resulting in unstable heat exchange efficiency. When the heat source deviates from the fixed heat exchange area, the system's waste heat recovery decreases significantly; when the heat source temperature is too high or local heat concentration occurs, it can easily cause localized overheating of heat exchange components, thermal shock, or control lag.

[0005] Secondly, traditional waste heat recovery systems mostly rely on regulating the circulating water flow or valve opening to control the outlet water temperature. However, this type of control can only passively adjust the water from the water side and cannot actively change the heat exchange intensity from the heat source side. When the heat source temperature rises rapidly, the heat source location changes, or the water load changes suddenly, it is difficult to maintain a stable hot water temperature in a timely manner by simply adjusting the pump frequency or regulating the valve opening. This can easily lead to problems such as large fluctuations in outlet water temperature, slow heating of the storage tank, and discontinuous hot water supply.

[0006] Again, most heat exchangers in existing systems are of fixed structures, such as fixed plate heat exchangers, fixed coil heat exchangers, or heat pipe heat exchangers with fixed layouts. These structures usually determine the heat transfer area, installation angle, and heat transfer position during the design stage, and it is difficult to make adaptive adjustments according to the heat source temperature distribution during subsequent operation. For the working conditions of fiberglass production, where the heat source fluctuates significantly, the on-site installation space is limited, and the hot water demand is intermittent, the fixed heat exchange structure is difficult to balance efficient recovery, stable heat supply, and operation safety.

[0007] In addition, in order to ensure the hot water temperature, some waste heat recovery systems still need to set up electric heating, steam heat supplement, or other external heat sources as auxiliary heating means. When the waste heat recovery efficiency is insufficient or the hot water temperature cannot stably reach the process requirements, the system will rely on external energy for heat supplement again, thus reducing the overall energy-saving effect. Especially in application scenarios with high requirements for water temperature stability, such as sizing agent preparation, if the waste heat recovery system cannot adjust the heat transfer intensity in a timely manner according to the heat source change, it will affect the stable operation of the subsequent preparation process.

[0008] Furthermore, although the traditional hot water storage tank can temporarily store the heated hot water, it usually only has a simple heat preservation function and lacks linkage control with the front-end waste heat recovery heat exchange device. When the front-end heat transfer efficiency is insufficient, the temperature rise rate of the hot water storage tank is slow; when the front-end heat transfer intensity is too high, it may cause too high water temperature, energy waste, or safety risks. In the existing technology, there is still a lack of a waste heat recovery energy storage system that can comprehensively collect and link control parameters such as the heat source state, the position of the heat exchange component, the circulating water flow rate, and the temperature of the energy storage water tank.

[0009] Therefore, aiming at the problems in the fiberglass production process, such as the fluctuations in the position and intensity of the waste heat source, the poor adaptability of the fixed heat exchanger, the unstable control of the hot water temperature, and the lack of linkage between the energy storage water tank and the front-end heat exchange device, it is necessary to propose a fiberglass waste heat recovery energy storage system that can automatically adjust the position of the heat pipe heat exchanger according to the heat source state and work in coordination with the circulating heat exchange pipeline, the energy storage heat preservation box, and the control system, so as to improve the waste heat recovery efficiency and the stability of hot water supply. Summary of the Invention

[0010] Aiming at the problems in the existing fiberglass production waste heat recovery system, such as the fixed heat exchange structure being difficult to adapt to the fluctuations in the heat source position and heat intensity, the unstable waste heat recovery efficiency, the lag in hot water temperature control, and the lack of linkage control between the energy storage water tank and the front-end heat exchange device, the present invention provides a fiberglass waste heat recovery energy storage system based on self-adjustment of the heat pipe position.

[0011] This invention, by installing an adjustable heat pipe heat exchange component in the waste heat channel of glass fiber production, enables the heat pipe body to automatically adjust its insertion depth, proximity distance, and / or heat exchange position according to the temperature distribution, heat flow intensity, or high-temperature area location of the waste heat medium in the heat source channel. Simultaneously, through the coordinated control of the circulating heat exchange pipeline, water-side heat exchange structure, energy storage and insulation box, sensor components, and control cabinet, the waste heat is efficiently transferred to circulating water or preparation water, and the heated hot water is stored for use in the glass fiber impregnation agent preparation process, thereby improving the waste heat recovery efficiency and the stability of hot water supply.

[0012] To achieve the above objectives, the present invention adopts the following technical solution: A glass fiber waste heat recovery energy storage system based on heat pipe position self-adjustment includes a heat source channel, an adjustable heat pipe heat exchange component, a circulating heat exchange pipeline, an energy storage insulation box, a sensor component, and a control cabinet.

[0013] The heat source channel is used to introduce waste heat medium generated during the glass fiber production process. The waste heat medium can be hot air, flue gas, hot exhaust gas, or other gaseous media carrying waste heat discharged from the glass fiber production equipment. The heat source channel can include a heat source inlet and a heat source outlet. The waste heat medium enters the heat source channel through the heat source inlet, and after heat exchange, it is discharged through the heat source outlet.

[0014] The adjustable heat pipe heat exchange assembly is disposed at the heat source channel. The adjustable heat pipe heat exchange assembly includes a heat pipe body, a drive mechanism, a water-side heat exchange structure, and a telescopic connector. The heat pipe body is at least partially disposed within the heat source channel, or forms a heat exchange connection with the heat source channel. The drive mechanism is connected to the heat pipe body and is used to adjust the insertion depth, approach distance, and / or heat exchange position of the heat pipe body relative to the heat source channel, allowing the heat pipe body to move closer to or further away from the high-temperature region within the heat source channel according to the heat source conditions.

[0015] The heat pipe body is preferably a heat pipe with a closed-loop internal working fluid circulation, comprising an evaporation section and a condensation section. The evaporation section is located within or connected to the heat source channel for heat exchange, and is used to absorb heat from the waste heat medium; the condensation section is connected to a water-side heat exchange structure for heat exchange, and is used to transfer the heat absorbed by the evaporation section to the circulating water or configuration water flowing through the water-side heat exchange structure. Thus, the working fluid inside the heat pipe body is isolated from the water-side medium, heat transfer is achieved inside the heat pipe through the evaporation and condensation of the working fluid, while the water-side medium is heated in the water-side heat exchange structure.

[0016] The water-side heat exchange structure is located outside the condenser section of the heat pipe body, or is connected to the condenser section for heat exchange. The water-side heat exchange structure can be at least one of a water-side heat exchange chamber, a heat exchange sleeve, or a plate heat exchanger. The water-side heat exchange structure has a water-side medium inlet and a water-side medium outlet. Circulating water or configuration water enters the water-side heat exchange structure through the water-side medium inlet, exchanges heat with the condenser section of the heat pipe body, and then flows out through the water-side medium outlet.

[0017] The telescopic connector connects the water-side heat exchange structure and the circulating heat exchange pipeline, and is used to maintain the continuity and seal of the water-side medium passage when the position of the heat pipe body changes. The telescopic connector can be at least one of a telescopic hose, a corrugated pipe, or a sliding sealing sleeve. The drive mechanism can be at least one of a servo motor, an electric actuator, a pneumatic actuator, or a hydraulic actuator.

[0018] In a preferred embodiment, the adjustable heat pipe heat exchange assembly further includes a thermal probe. The thermal probe is disposed within the heat source channel or near the heat pipe body, and is used to detect the temperature distribution, heat flux intensity, and / or the location of high-temperature regions in the waste heat medium within the heat source channel. The control cabinet determines the target heat exchange position of the heat pipe body based on the detection results of the thermal probe and outputs control commands to the drive mechanism, causing the heat pipe body to move to the corresponding position.

[0019] The circulating heat exchange pipeline is connected to the water-side heat exchange structure, allowing circulating water or configuration water to absorb waste heat transferred by the heat pipe body through the water-side heat exchange structure. A circulating pump and / or an electrically operated regulating valve are installed in the circulating heat exchange pipeline. The circulating pump drives the water-side medium to circulate, and the electrically operated regulating valve regulates the water-side medium flow rate. Preferably, the control cabinet uses a PID algorithm to control the opening degree of the electrically operated regulating valve and the operating frequency of the circulating pump to regulate the water-side medium flow rate entering the water-side heat exchange structure and / or plate heat exchanger.

[0020] In a preferred embodiment, the circulating heat exchange pipeline includes a circulating hot water tank, a circulating cold water tank, a circulating pump, an electric regulating valve, a plate heat exchanger, and connecting pipes. The circulating cold water tank is used to replenish the system with low-temperature water or configuration water to be heated; the circulating hot water tank is used to temporarily store the hot water after heat exchange; the plate heat exchanger is used to realize heat exchange between the water-side media or to further improve the heating efficiency of the configuration water. The configuration water can be heated from a lower temperature to the temperature range required for glass fiber impregnation before entering the energy storage and insulation tank.

[0021] The energy storage and insulation box is connected to the circulating heat exchange pipeline and is used to store hot water heated by waste heat. The energy storage and insulation box may include an inner liner, a vacuum insulation panel, and a polyurethane foam layer. The vacuum insulation panel is disposed on the outside of the inner liner, and the polyurethane foam layer is disposed on the outside of the vacuum insulation panel, or combined with the vacuum insulation panel, to reduce heat loss of the hot water inside the energy storage and insulation box. The water outlet of the energy storage and insulation box is connected to the water outlet for glass fiber impregnation agent preparation, to provide hot water to the impregnation agent preparation process.

[0022] The sensor assembly is used to collect system operation data. The sensor assembly may include at least two of the following: a heat source temperature sensor, a heat pipe temperature sensor, an energy storage and insulation tank temperature sensor, a circulating water inlet temperature sensor, a circulating water outlet temperature sensor, a pressure sensor, a flow sensor, and a displacement sensor. Through real-time detection by the sensor assembly, the control cabinet can obtain the status of the heat source, heat exchange, energy storage, and pipeline operation.

[0023] The control cabinet is electrically connected to the sensor assembly, the drive mechanism, the circulating pump, and / or the electric regulating valve. The control cabinet controls the drive mechanism based on data collected by the sensor assembly and adjusts the operating frequency of the circulating pump and / or the opening of the electric regulating valve to maintain the water temperature in the energy storage tank within a preset temperature range. Preferably, the preset temperature range is 60°C to 80°C.

[0024] In a preferred embodiment, the control cabinet includes a data processing module and a control algorithm module. The control algorithm module includes a feedforward control unit and a feedback control unit. The feedforward control unit determines the initial target position of the heat pipe body based on the heat source temperature and water flow rate; the feedback control unit corrects the initial target position based on the deviation between the energy storage tank water temperature or the circulating water outlet temperature and the target temperature, and outputs control commands to the drive mechanism. By combining feedforward control and feedback control, the system can respond quickly to fluctuations in heat source temperature or changes in water load, and maintain a stable energy storage water temperature.

[0025] During system operation, when the water temperature in the energy storage tank is below the lower limit of the preset temperature range, the control cabinet controls the heat pipe body to move closer to the high-temperature area in the heat source channel or increase the insertion depth, while simultaneously increasing the operating frequency of the circulation pump and / or increasing the opening of the electric regulating valve to enhance the circulation heat exchange intensity. When the water temperature in the energy storage tank reaches or exceeds the upper limit of the preset temperature range, the control cabinet controls the heat pipe body to move away from the high-temperature area or decrease the insertion depth, while simultaneously reducing the operating frequency of the circulation pump and / or decreasing the opening of the electric regulating valve to reduce the circulation heat exchange intensity.

[0026] In a preferred embodiment, the system further includes a safety protection module. When the safety protection module detects that the water temperature in the energy storage tank exceeds a safe temperature, the pipeline pressure exceeds a set pressure, the circulating water flow rate is lower than a set flow rate, the heat source temperature rises abnormally, or the sensor signal is abnormal, it controls the drive mechanism to move the heat pipe body away from the high-temperature area within the heat source channel, and closes or reduces the opening of the corresponding electric regulating valve. If necessary, it reduces the circulation pump frequency, stops the circulation pump operation, or issues an alarm signal.

[0027] The present invention also provides a glass fiber waste heat recovery and energy storage control method, applied to the above-mentioned glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment, comprising the following steps: Collect data on heat source temperature, circulating water temperature, energy storage and insulation tank water temperature, pipeline pressure and / or flow rate within the heat source channel; Based on the deviation between the water temperature of the energy storage and insulation box and the target water temperature, as well as the location or heat intensity of the high-temperature area in the heat source channel, determine the target insertion depth, target approach distance and / or target heat exchange position of the heat pipe body relative to the heat source channel. The control drive mechanism moves the heat pipe body to the target insertion depth, target proximity distance, and / or target heat exchange position; The opening of the electric regulating valve is adjusted by the PID algorithm, and the operating frequency of the circulating pump is adjusted so that the circulating water or the water used for configuration absorbs the waste heat transferred by the heat pipe body through the water-side heat exchange structure and then enters the energy storage and insulation box. When the water temperature in the energy storage and insulation box is lower than the lower limit of the preset temperature range, the heat pipe body is controlled to move closer to the high-temperature area in the heat source channel, and the circulation heat exchange intensity is increased; when the water temperature in the energy storage and insulation box reaches or exceeds the upper limit of the preset temperature range, the heat pipe body is controlled to move away from the high-temperature area, and the circulation heat exchange intensity is reduced.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects: First, by setting an adjustable heat pipe heat exchange component, the present invention enables the heat pipe body to automatically adjust the insertion depth, proximity distance and / or heat exchange position according to the temperature distribution, heat flow intensity or high temperature area of ​​the waste heat source in glass fiber production, thus overcoming the problem that traditional fixed heat exchangers can only exchange heat in a fixed position and are difficult to adapt to heat source fluctuations.

[0029] Secondly, the present invention adopts a heat pipe body with a closed internal working fluid circulation and sets a water-side heat exchange structure on the outside of the condensation section of the heat pipe body, so that the internal working fluid of the heat pipe and the water-side medium are isolated from each other, which not only ensures the efficient phase change heat transfer characteristics of the heat pipe, but also facilitates the stable heat absorption of circulating water or configuration water through the water-side medium passage.

[0030] Third, the present invention links the position adjustment of the heat pipe body, the frequency adjustment of the circulating pump, and the opening adjustment of the electric regulating valve. This not only allows for the adjustment of heat exchange from the water side, but also allows for the active change of heat exchange intensity from the heat source side, thereby improving the system's responsiveness to heat source fluctuations and changes in water load.

[0031] Fourth, the present invention collects parameters such as heat source temperature, circulating water temperature, energy storage and insulation tank water temperature, pipeline pressure and flow rate in real time through sensor components, and the control cabinet makes comprehensive judgments and controls to ensure that the water temperature in the energy storage and insulation tank can be stably maintained within the preset temperature range, thus meeting the requirements of the glass fiber impregnation agent preparation process for the stability of hot water temperature.

[0032] Fifth, this invention stores hot water heated by waste heat in an energy storage and insulation box, which can buffer the heat energy when the waste heat source and water demand are not completely synchronized, reduce the use of external electric heating, steam supplementary heating or other auxiliary heat sources, and improve the energy utilization efficiency in the glass fiber production process.

[0033] Sixth, the present invention determines and corrects the target position of the heat pipe body through the feedforward control unit and the feedback control unit, which can quickly adjust the heat exchange position when the heat source temperature changes or the water flow rate changes, thereby improving the stability and control accuracy of the system operation.

[0034] Seventh, the present invention is equipped with a safety protection module. When situations such as overheating, overpressure, low flow, abnormal heat source, or sensor malfunction occur, the heat pipe body can be controlled to move away from the high-temperature area, and the electric regulating valve and circulation pump can be adjusted in conjunction to reduce system thermal shock and operational risks, and improve system safety and reliability. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments are briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and therefore should not be considered as a limitation on the scope of protection of the present invention. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the system structure of a glass fiber waste heat recovery energy storage system based on heat pipe position self-adjustment provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the adjustable heat pipe heat exchange assembly provided in an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures: 1. Insulated box inner liner; 2. Vacuum insulation panel; 3. Polyurethane foam layer; 4. Plate heat exchanger; 5. Pipeline heating tape; 101. Energy storage and insulation box; 102. Circulating hot water tank; 103. Circulating cold water tank; 104. Heat exchanger; 105. Electric regulating valve; 106. Temperature sensor; 107. Pressure sensor; 108. Circulating pump; 109. Control cabinet; 110. Connecting pipes; 201. Thermal probe; 202. Servo motor telescopic rod; 203. Heat pipe; 204. Telescopic connector; 205. Heat source inlet; 206. Heat source outlet; 207. Water-side medium inlet; 208. Water-side medium outlet.

[0038] in, Figure 1 The diagram illustrates the connections between the heat source channel, circulating heat exchange pipeline, energy storage and insulation box, circulating hot water tank, circulating cold water tank, plate heat exchanger, electric regulating valve, circulating pump, temperature sensor, pressure sensor, and control cabinet. Figure 2 The structural relationship between the thermal probe, servo motor telescopic rod, heat pipe, telescopic connector, water-side medium inlet and water-side medium outlet is shown to illustrate the process of the heat pipe self-adjusting its position relative to the heat source channel and exchanging heat with the water-side medium. Detailed Implementation

[0039] The technical solution of the present invention will be further described below with reference to the accompanying drawings. It should be understood that the following embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention. Equivalent substitutions or conventional modifications made by those skilled in the art to the structural form, connection method, control logic, or parameter range of various components without departing from the concept of the present invention should all fall within the scope of protection of the present invention. Example 1

[0040] like Figure 1 and Figure 2 As shown, this embodiment provides a glass fiber waste heat recovery energy storage system based on heat pipe position self-adjustment, including a heat source channel, an adjustable heat pipe heat exchange component, a circulating heat exchange pipeline, an energy storage insulation box 101, a sensor component, and a control cabinet 109.

[0041] The heat source channel is used to introduce waste heat medium generated during the glass fiber production process. The waste heat medium can be hot air, flue gas, or hot exhaust gas discharged from melting furnaces, hot air systems, drying equipment, flue gas ducts, or other thermal equipment during the glass fiber production process. The heat source channel is equipped with a heat source inlet 205 and a heat source outlet 206. The waste heat medium enters the heat source channel through the heat source inlet 205, exchanges heat with the adjustable heat pipe heat exchange assembly within the heat source channel, and then exits through the heat source outlet 206.

[0042] The adjustable heat pipe heat exchange assembly is located at the heat source channel. For example... Figure 2As shown, the adjustable heat pipe heat exchange assembly includes a thermal probe 201, a servo motor telescopic rod 202, a heat pipe 203, a water-side heat exchange structure, and a telescopic connector 204. The heat pipe 203 extends at least partially into the heat source channel or is positioned near a high-temperature region within the heat source channel. The thermal probe 201, positioned within the heat source channel or near the heat pipe 203, is used to detect the temperature, heat intensity, or location of the high-temperature region in the residual heat medium within the heat source channel. The servo motor telescopic rod 202 is connected to the heat pipe 203 and drives the heat pipe 203 to move towards or away from the high-temperature region within the heat source channel, thereby adjusting the insertion depth, proximity distance, or heat exchange position of the heat pipe 203 relative to the heat source channel. The telescopic connector 204 connects the water-side heat exchange structure and the circulating heat exchange pipeline, maintaining the continuity and sealing of the water-side medium passage when the position of the heat pipe 203 changes.

[0043] In this embodiment, the heat pipe 203 is preferably a medium-temperature heat pipe with a closed-loop internal working fluid, preferably water, and the operating temperature range is 80°C to 150°C. The heat pipe 203 includes an evaporation section and a condensation section. The evaporation section is disposed within or connected to the heat source channel for heat exchange, and is used to absorb heat from the waste heat medium. The condensation section is connected to the water-side heat exchange structure for heat exchange, and is used to transfer the heat absorbed by the evaporation section to the circulating water or water used for preparing the wetting agent flowing through the water-side heat exchange structure. To improve heat transfer capacity, a sintered copper powder capillary core can be provided on the inner wall of the evaporation section of the heat pipe 203. The porosity of the capillary core is 50% to 70%, and the pore size ranges from 10 μm to 100 μm.

[0044] It should be noted that, Figure 2 The water-side medium inlet 207 and water-side medium outlet 208 shown are the inlet and outlet of a water-side heat exchange chamber, heat exchange sleeve, or heat exchanger located outside the condensation section of the heat pipe 203, not the inlet and outlet of the working fluid inside the heat pipe 203. In other words, the working fluid inside the heat pipe 203 is in a closed phase change cycle state. The water-side medium enters the water-side heat exchange structure through the water-side medium inlet 207, exchanges heat with the condensation section of the heat pipe 203, and then flows out through the water-side medium outlet 208. This arrangement utilizes the efficient phase change heat transfer characteristics of the heat pipe 203 while isolating the circulating water or the water used for preparation from the working fluid inside the heat pipe, thus achieving safe and stable waste heat exchange.

[0045] like Figure 1As shown, the circulating heat exchange pipeline includes a circulating hot water tank 102, a circulating cold water tank 103, a circulating pump 108, a plate heat exchanger 4, an electric regulating valve 105, connecting pipes 110, and necessary valves. The circulating cold water tank 103 is used to replenish the system with low-temperature water or configuration water to be heated; the circulating pump 108 is used to drive the circulating water or configuration water to flow in the circulating heat exchange pipeline; the plate heat exchanger 4 is used to realize heat exchange between the condensing section of the heat pipe 203 and the configuration water, or to realize heat exchange between different water-side media; the electric regulating valve 105 is used to regulate the flow rate of the circulating water or configuration water, and the control cabinet 109 controls the opening degree of the electric regulating valve 105 through a PID algorithm.

[0046] In one specific embodiment, the plate heat exchanger 4 is made of 316L stainless steel, with a heat transfer unit number (NTU) of not less than 3.5 and a fouling factor of not more than 0.0001 m²·K / W. The plate heat exchanger 4 employs a counter-current heat exchange method, enabling efficient heat exchange between the low-temperature configuration water and the heat pipe side or circulating hot water side. The configuration water can be gradually heated from approximately 20°C to 60°C to 80°C before being stored in the energy storage and insulation tank 101. To reduce water-side resistance and adapt to changes in configuration water flow rate, the flow channels of the plate heat exchanger 4 can be configured with an asymmetrical structure, with the width of the flow channel on the configuration water side being 20% ​​to 40% larger than the width of the flow channel on the heat pipe side or hot water side.

[0047] The energy storage and insulation box 101 is used to store hot water heated by waste heat and to provide constant-temperature hot water to the glass fiber impregnation process. The energy storage and insulation box 101 includes an insulated inner liner 1, a vacuum insulation panel 2, and a polyurethane foam layer 3. The vacuum insulation panel 2 is located on the outside of the inner liner 1, and the polyurethane foam layer 3 is located on the outside of the vacuum insulation panel 2, or the vacuum insulation panel 2 and the polyurethane foam layer 3 are combined. The thermal conductivity of the vacuum insulation panel 2 is preferably no greater than 0.004 W / m·K. By forming a composite insulation structure with the vacuum insulation panel 2 and the polyurethane foam layer 3, heat loss from the hot water inside the energy storage and insulation box 101 can be reduced. Under conditions of full load, initial water temperature of approximately 70℃, ambient temperature of 20±5℃, and insulation layer thickness meeting design requirements, the energy storage and insulation box 101 can control the temperature drop within a low range over 24 hours, preferably less than 1℃.

[0048] To prevent pipe freezing in low-temperature environments, a pipe tracing cable 5 can be installed on the circulating heat exchange pipes. The pipe tracing cable 5 is installed on the outside of the circulating water pipe, the water supply pipe, or the connecting pipe 110 near the energy storage and insulation box 101. It is activated when the ambient temperature is lower than a set value to prevent the medium inside the pipe from freezing. Furthermore, an antifreeze agent can be added to the water-side circulating medium; the antifreeze agent is preferably ethylene glycol, and the addition ratio is no more than 10% by weight.

[0049] The sensor assembly is used to collect system operating parameters. The sensor assembly may include at least two of the following: a heat source temperature sensor, a thermal probe 201, a heat pipe temperature sensor, a circulating water inlet temperature sensor, a circulating water outlet temperature sensor, an energy storage and insulation tank temperature sensor, a pressure sensor 107, a flow sensor, and an angle or displacement sensor. The heat source temperature sensor is used to detect the temperature inside the heat source inlet 205, the heat source outlet 206, or the heat source channel; the circulating water inlet temperature sensor and the circulating water outlet temperature sensor are used to detect the water temperature before and after heat exchange; the energy storage and insulation tank temperature sensor is used to detect the hot water temperature inside the energy storage and insulation tank 101; the pressure sensor 107 is used to detect the pressure in the circulating heat exchange pipeline; the flow sensor is used to detect the flow rate of circulating water or configured water; and the angle or displacement sensor is used to detect the current insertion depth, extension distance, or installation position of the heat pipe 203.

[0050] The control cabinet 109 is electrically connected to the sensor assembly, servo motor telescopic rod 202, circulating pump 108, electric regulating valve 105, pipeline heating cable 5, and alarm device. The control cabinet 109 includes a data acquisition module, a data processing module, a PID control module, a heat pipe position control module, an IoT communication module, and a safety protection module. The data acquisition module receives real-time data from each sensor; the data processing module processes temperature, pressure, flow rate, and heat pipe position data; the PID control module controls the opening of the electric regulating valve 105 and the operating frequency of the circulating pump 108 using a PID algorithm; the heat pipe position control module controls the extension and retraction of the servo motor telescopic rod 202; the IoT communication module uploads system operation data to a cloud platform; and the safety protection module provides over-temperature, over-pressure, low flow rate, anti-freeze, and fault alarm protection.

[0051] During system operation, control cabinet 109 first collects data on the heat source temperature, heat source temperature trend, water temperature in energy storage and insulation tank 101, inlet and outlet temperatures of circulating water, pipeline pressure, and flow rate within the heat source channel. When the water temperature in energy storage and insulation tank 101 falls below the lower limit of the preset temperature range, for example, below 60°C, control cabinet 109 determines that the system needs to enhance waste heat recovery. At this time, based on the heat source distribution detected by heat probe 201, control cabinet 109 controls the servo motor extension rod 202 to move the heat pipe 203 towards the high-temperature area within the heat source channel or increase its insertion depth. Simultaneously, it increases the operating frequency of circulating pump 108 or increases the opening of electric regulating valve 105, allowing circulating water or configured water to absorb more waste heat.

[0052] When the water temperature inside the energy storage and insulation tank 101 is within the preset temperature range, such as between 60°C and 80°C, the control cabinet 109 maintains the current heat exchange state and makes minor adjustments to the opening degree of the electric regulating valve 105, the operating frequency of the circulation pump 108, and the position of the heat pipe 203 according to water temperature fluctuations, so as to stabilize the hot water temperature inside the energy storage and insulation tank 101. When the water temperature inside the energy storage and insulation tank 101 is higher than the upper limit of the preset temperature range, such as above 80°C, the control cabinet 109 controls the servo motor telescopic rod 202 to retract, so that the heat pipe 203 is away from the high-temperature area in the heat source channel. At the same time, the operating frequency of the circulation pump 108 is reduced or the opening degree of the electric regulating valve 105 is reduced to reduce the heat exchange intensity and prevent the water temperature inside the energy storage and insulation tank 101 from becoming too high.

[0053] In this embodiment, the control cabinet 109 can use a feedforward-feedback composite control method to determine the target position of the heat pipe 203. The feedforward control part quickly calculates the initial target position of the heat pipe 203 based on the heat source temperature, ambient temperature, configured water flow rate, and the current water temperature of the energy storage and insulation tank 101; the feedback control part corrects the initial target position based on the deviation between the water temperature of the energy storage and insulation tank 101 or the circulating water outlet temperature and the target temperature. Specifically, when the water flow rate increases or the water temperature of the energy storage and insulation tank 101 decreases, the control cabinet 109 controls the heat pipe 203 to move towards the high-temperature region; when the heat source temperature rises too quickly or the water temperature of the energy storage and insulation tank 101 approaches the upper limit, the control cabinet 109 controls the heat pipe 203 to move away from the high-temperature region.

[0054] To further improve heat exchange stability, control cabinet 109 can also optimize the position of heat pipe 203 based on the actual heat transfer efficiency. The actual heat transfer efficiency can be estimated using the following formula: η_actual = Q_water / Q_available Wherein, Q_water represents the actual heat absorbed on the water side, and Q_available represents the recoverable heat on the heat source side. The actual heat absorbed on the water side can be calculated based on the circulating water mass flow rate, specific heat capacity, and the temperature difference between the inlet and outlet of the circulating water. Control cabinet 109 compares the actual heat transfer efficiency with the target heat transfer efficiency threshold. When the actual heat transfer efficiency is lower than the target heat transfer efficiency threshold, it controls the heat pipe 203 to move towards the high-temperature region of the heat source, or increases the circulating water flow rate; when the actual heat transfer efficiency reaches the target heat transfer efficiency threshold, it maintains or fine-tunes the position of the heat pipe 203. The target heat transfer efficiency threshold can be set according to the system calibration results, for example, set to 85%.

[0055] The IoT communication module uploads real-time data to the cloud platform, including heat source temperature, water temperature in the energy storage and insulation tank 101, circulating water flow rate, pipeline pressure, heat pipe position, opening degree of the electric regulating valve 105, frequency of the circulating pump 108, and alarm status. The cloud platform can be used for remote monitoring, parameter setting, energy efficiency analysis, operation record storage, and fault early warning. Through the IoT monitoring function, managers can remotely view the system's waste heat recovery and energy storage status, enabling unmanned or minimally staffed operation and maintenance.

[0056] The safety protection module is used to improve system reliability. When the water temperature in the energy storage and insulation tank 101 exceeds the safe temperature, for example, exceeding 85°C, the control cabinet 109 controls the servo motor extension rod 202 to retract, moving the heat pipe 203 away from the high-temperature area of ​​the heat source channel. Simultaneously, it reduces or closes the electric regulating valve 105 and issues an over-temperature alarm. When the pipeline pressure exceeds the set pressure, the control cabinet 109 issues an overpressure alarm and reduces the frequency of the circulating pump 108, closing relevant valves if necessary. When the circulating water flow rate is lower than the set flow rate, the control cabinet 109 determines that the system has a low flow risk, stopping or reducing the heat exchange intensity to prevent localized overheating of the heat pipe 203. When the ambient temperature is lower than the antifreeze set value, the control cabinet 109 activates the pipeline heating tape 5 or executes antifreeze circulation control.

[0057] Through the above structure, this embodiment can directly convert the medium- and low-temperature waste heat generated during the glass fiber production process into hot water required for impregnation agent preparation, and store it through the energy storage and insulation box 101. Compared with traditional fixed heat exchange systems, this embodiment can not only control the hot water temperature by regulating the water flow rate, but also actively change the heat exchange intensity on the heat source side by self-adjusting the position of the heat pipe 203, thereby adapting to changes in heat source location, temperature, and load, and improving waste heat recovery efficiency and hot water supply stability. Example 2

[0058] The difference between this embodiment and Embodiment 1 is that the adjustable heat pipe heat exchange assembly adopts a multi-stage heat pipe heat exchange structure.

[0059] Specifically, the adjustable heat pipe heat exchange assembly includes multiple medium-temperature heat pipes connected in parallel or series, forming a heat pipe array. The evaporation sections of each heat pipe in the heat pipe array are distributed along the height, length, or width of the heat source channel to cover different temperature regions. The condensation sections of each heat pipe are connected to the same water-side heat exchange chamber, heat exchange sleeve, or plate heat exchanger 4. The control cabinet 109 can control the entire heat pipe array to move synchronously or control the movement of some heat pipes in groups based on temperature signals from different locations within the heat source channel.

[0060] In this embodiment, the heat pipe array can be configured as a gravity-assisted heat pipe array, with adjustable installation position, extension distance, or tilt angle. The control cabinet 109 calculates the target position of the heat pipe array based on the heat pipe temperature, ambient temperature, configured water flow rate, and water temperature in the energy storage and insulation box 101, ensuring the heat pipe array is in the optimal heat exchange zone. When the high-temperature zone of the heat source shifts, the heat pipe array adjusts its position via a servo motor extension rod 202, an electric push rod, or a sliding rail mechanism, bringing the heat pipe evaporation section closer to the high-temperature zone, thereby maintaining high heat transfer efficiency.

[0061] In this embodiment, the heat pipe array can be adjusted by insertion depth, horizontal distance, vertical height, tilt angle, or a combination of the above. For scenarios with narrow heat source channel space, telescopic distance adjustment can be used; for scenarios with obvious heat source height stratification, height adjustment can be used; for gravity-assisted heat pipes, tilt angle adjustment can improve the reflux conditions of the working fluid inside the heat pipe and enhance the heat transfer stability of the heat pipe. Example 3

[0062] The difference between this embodiment and Embodiment 1 is that the system also includes a waste heat cascade utilization module.

[0063] Specifically, a high-temperature heat pipe heat exchange section and a medium-temperature heat pipe heat exchange section are sequentially arranged along the flow direction of the waste heat medium within the heat source channel. The high-temperature heat pipe heat exchange section uses a sodium or potassium high-temperature heat pipe as the working fluid, with an operating temperature range of 150℃ to 400℃; the medium-temperature heat pipe heat exchange section uses a water medium-temperature heat pipe, with an operating temperature range of 80℃ to 150℃. The high-temperature heat pipe heat exchange section prioritizes the recovery of higher-temperature waste heat within the heat source channel, while the medium-temperature heat pipe heat exchange section further recovers the medium-temperature waste heat after heat exchange in the high-temperature section.

[0064] The high-temperature heat pipe heat exchange section and the medium-temperature heat pipe heat exchange section can be connected to different water-side heat exchange structures or different water-side loops, or they can be connected in series to the same energy storage and insulation box 101. Through the above-mentioned tiered utilization structure, the system can achieve graded recovery according to the temperature range of the waste heat medium, reduce the thermal shock of single-stage heat exchangers, and increase the total amount of waste heat recovered.

[0065] In this embodiment, both the high-temperature heat pipe heat exchange section and the medium-temperature heat pipe heat exchange section can be equipped with independent drive mechanisms and thermal probes 201. The control cabinet 109 adjusts the positions of the high-temperature heat pipe and the medium-temperature heat pipe according to sensor data from different temperature zones, ensuring that each stage of the heat pipe is within its appropriate temperature range. Through graded position adjustment, the system can maintain stable heat exchange even when the heat source temperature fluctuates significantly. Example 4

[0066] The difference between this embodiment and Embodiment 1 is that the system is further equipped with a control for the supply of water for preparing the wetting agent.

[0067] Specifically, the outlet of the energy storage and insulation tank 101 is connected to the water supply end for the glass fiber impregnation agent preparation process. The energy storage and insulation tank 101 provides hot water at 60°C to 80°C to the impregnation agent preparation process. The outlet of the energy storage and insulation tank 101 is equipped with an outlet water temperature sensor and an outlet water regulating valve. The control cabinet 109 controls the opening of the outlet water regulating valve according to the water demand of the impregnation agent preparation process. When the water consumption of the impregnation agent preparation process increases, the control cabinet 109 increases the frequency of the circulation pump 108 and controls the heat pipe 203 to move towards the high-temperature area of ​​the heat source to accelerate the heat replenishment of the energy storage and insulation tank 101; when the water consumption of the impregnation agent preparation process decreases, the control cabinet 109 decreases the frequency of the circulation pump 108 and moves the heat pipe 203 away from the high-temperature area to reduce ineffective heat exchange.

[0068] Through this implementation method, the energy storage and heat preservation box 101 is not only used to store hot water, but also forms a linkage control with the front-end waste heat recovery device and the back-end impregnation agent preparation process, so that the system can adapt to the working conditions of intermittent water use and heat source fluctuations in glass fiber production. Example 5

[0069] The difference between this embodiment and Embodiment 1 is that the control cabinet 109 adopts a dual-layer closed-loop control logic.

[0070] The first-level closed-loop control targets the outlet water temperature of the energy storage and insulation tank 101 or the outlet water temperature of the circulating water. The PID control module adjusts the opening of the electric regulating valve 105 and the frequency of the circulating pump 108 to maintain the hot water temperature within a preset range of 60℃ to 80℃. The PID parameters can have a self-tuning function to adapt to seasonal changes, ambient temperature changes, and production load changes.

[0071] The second layer of closed-loop control uses the heat transfer efficiency of heat pipe 203 or the location of the high-temperature region of the heat source as the control target, and adjusts the extension and retraction of the servo motor telescopic rod 202 through the heat pipe position control module. Control cabinet 109 calculates the target position of heat pipe 203 based on the heat source temperature, heat pipe evaporation section temperature, heat pipe condensation section temperature, configured water flow rate, and ambient temperature. When the actual heat transfer efficiency of heat pipe 203 is detected to be lower than the target heat transfer efficiency threshold, control cabinet 109 controls heat pipe 203 to move closer to the high-temperature region of the heat source; when the water temperature reaches the target value or the heat source temperature is too high, control cabinet 109 controls heat pipe 203 to move away from the high-temperature region.

[0072] Through the above-mentioned dual-layer closed-loop control, the system can not only stabilize the outlet water temperature, but also actively optimize the heat exchange conditions on the heat source side, thereby achieving a balance between waste heat recovery efficiency and hot water temperature stability. Example 6

[0073] The difference between this embodiment and Embodiment 1 is that the energy storage and insulation box 101 adopts a composite insulation structure and is equipped with multi-point temperature detection.

[0074] The energy storage and insulation box 101 includes an insulated inner liner 1, a vacuum insulation panel 2 disposed on the outside of the inner liner, a polyurethane foam layer 3 disposed on the outside of the vacuum insulation panel 2, and an outer protective shell. Temperature sensors are installed at the top, middle, and bottom of the energy storage and insulation box 101 to detect the water temperature at different heights inside the box. The control cabinet 109 determines whether there is temperature stratification inside the energy storage and insulation box 101 based on the multi-point temperature detection results. When the temperature difference inside the box exceeds a set value, the control cabinet 109 starts the circulation pump 108 to circulate the water inside the box, or adjusts the inlet and outlet water positions to make the water temperature inside the energy storage and insulation box 101 more uniform.

[0075] By using a composite insulation structure and multi-point temperature detection, this embodiment can reduce heat loss during energy storage and improve temperature stability when supplying water to the wetting agent preparation process.

[0076] Work process The working process of the system of the present invention can be summarized as follows.

[0077] The waste heat generated during the glass fiber production process enters the heat source channel through the heat source inlet 205. The heat probe 201 detects the heat source temperature or heat intensity in the heat source channel and transmits the detection data to the control cabinet 109. The control cabinet 109 determines the required heat exchange intensity based on the water temperature of the energy storage and insulation box 101, the inlet and outlet temperatures of the circulating water, the water flow rate, and the heat source temperature.

[0078] When enhanced heat exchange is required, the control cabinet 109 sends an extension command to the servo motor telescopic rod 202, causing the heat pipe 203 to move towards the high-temperature area within the heat source channel. The evaporation section of the heat pipe 203 absorbs heat from the waste heat medium, while the internal working fluid evaporates and transfers heat to the condensation section. Circulating water or configuration water enters the water-side heat exchange chamber, heat exchange sleeve, or plate heat exchanger 4 outside the condensation section of the heat pipe 203 through the water-side medium inlet 207, exchanges heat with the condensation section of the heat pipe 203, and then flows out through the water-side medium outlet 208. The heated water enters the circulating hot water tank 102 or the energy storage and insulation tank 101.

[0079] When the water temperature inside the energy storage and insulation tank 101 reaches the preset temperature range of 60℃ to 80℃, the control cabinet 109 reduces the operating frequency of the circulating pump 108 or decreases the opening of the electric regulating valve 105, and controls the heat pipe 203 to retract as needed to reduce the heat exchange intensity. When the water temperature inside the energy storage and insulation tank 101 drops or the water consumption in the downstream wetting agent preparation process increases, the control cabinet 109 again controls the heat pipe 203 to move closer to the high-temperature area of ​​the heat source and increases the circulation heat exchange intensity.

[0080] When the system detects over-temperature, over-pressure, low flow, abnormal heat source, or sensor malfunction, control cabinet 109 activates safety protection logic, controlling heat pipe 203 to move away from the high-temperature area of ​​the heat source, reducing the frequency of circulation pump 108 or closing relevant valves, and issuing an alarm signal. When the ambient temperature is low, control cabinet 109 activates pipeline heating tape 5 or anti-freeze circulation to prevent pipeline freezing.

[0081] Through the above-described process, this invention achieves efficient recovery of waste heat from glass fiber production, stable hot water preparation, and energy storage and heat preservation for water supply. Because the position of the heat pipe 203 can be adaptively adjusted according to the heat source status and water demand, this invention overcomes the problem that traditional fixed heat exchangers cannot adapt to heat source fluctuations, making it suitable for energy-saving retrofitting and comprehensive utilization of waste heat in glass fiber production lines.

Claims

1. A glass fiber waste heat recovery energy storage system based on heat pipe position self-adjustment, characterized in that, It includes heat source channels, adjustable heat pipe heat exchange components, circulating heat exchange pipelines, energy storage and insulation boxes, sensor components, and control cabinets; The heat source channel is used to introduce the waste heat medium generated during the glass fiber production process. The adjustable heat pipe heat exchange assembly is disposed at the heat source channel. The adjustable heat pipe heat exchange assembly includes a heat pipe body, a drive mechanism, a water-side heat exchange structure, and a telescopic connector. The heat pipe body is at least partially disposed in the heat source channel or heat exchanged with the heat source channel. The drive mechanism is connected to the heat pipe body and is used to adjust the insertion depth, approach distance, and / or heat exchange position of the heat pipe body relative to the heat source channel. The water-side heat exchange structure is disposed outside the condensing section of the heat pipe body or is connected to the condensing section for heat exchange. The telescopic connector is connected between the water-side heat exchange structure and the circulating heat exchange pipeline, and is used to maintain the continuity and sealing of the water-side medium passage when the position of the heat pipe body changes. The circulating heat exchange pipeline is connected to the water-side heat exchange structure. The circulating heat exchange pipeline is equipped with a circulating pump and / or an electric regulating valve to allow the circulating water or the water to be used to absorb the waste heat transferred by the heat pipe body through the water-side heat exchange structure. The energy storage and insulation box is connected to the circulating heat exchange pipeline and is used to store hot water heated by waste heat; The sensor assembly is used to collect data on heat source temperature, circulating water temperature, energy storage and insulation tank water temperature, pipeline pressure and / or flow rate. The control cabinet is electrically connected to the sensor assembly, the drive mechanism, the circulating pump, and / or the electric regulating valve. The control cabinet controls the drive mechanism to operate based on the data collected by the sensor assembly, and adjusts the operating frequency of the circulating pump and / or the opening of the electric regulating valve to maintain the water temperature in the energy storage and insulation tank within a preset temperature range.

2. The glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment according to claim 1, characterized in that, The heat source channel includes a heat source inlet and a heat source outlet. The heat pipe body is disposed in the heat exchange area between the heat source inlet and the heat source outlet. The driving mechanism is used to drive the heat pipe body to move in a direction closer to or further away from the heat exchange area, so as to change the heat exchange intensity between the heat pipe body and the waste heat medium.

3. The glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment according to claim 1, characterized in that, The drive mechanism includes at least one of a servo motor, an electric push rod, a pneumatic push rod, or a hydraulic push rod, and the telescopic connector includes at least one of a telescopic hose, a corrugated pipe, or a sliding sealing sleeve.

4. The glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment according to claim 1, characterized in that, The adjustable heat pipe heat exchange assembly also includes a thermal probe, which is located in the heat source channel or near the heat pipe body. The thermal probe is used to detect the temperature distribution, heat flow intensity and / or the location of the high-temperature area of ​​the waste heat medium in the heat source channel. The control cabinet determines the target heat exchange position of the heat pipe body based on the detection results of the thermal probe.

5. The glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment according to claim 1, characterized in that, The heat pipe body is a heat pipe with a closed internal working fluid circulation. The heat pipe body includes an evaporation section and a condensation section. The evaporation section is located in the heat source channel or is heat exchanged with the heat source channel. The condensation section is heat exchanged with the water-side heat exchange structure, so that the waste heat absorbed by the evaporation section is transferred to the circulating water or configuration water flowing through the water-side heat exchange structure via the condensation section.

6. The glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment according to claim 5, characterized in that, The water-side heat exchange structure includes at least one of a water-side heat exchange cavity, a heat exchange sleeve, or a plate heat exchanger; the water-side heat exchange structure is provided with a water-side medium inlet and a water-side medium outlet, and circulating water or configuration water enters the water-side heat exchange structure through the water-side medium inlet, exchanges heat with the condensation section of the heat pipe body, and then flows out through the water-side medium outlet.

7. The glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment according to claim 1, characterized in that, The circulating heat exchange pipeline includes a circulating hot water tank, a circulating cold water tank, a circulating pump, an electric regulating valve, a plate heat exchanger, and connecting pipes. The control cabinet controls the opening degree of the electric regulating valve and the operating frequency of the circulating pump through a PID algorithm to regulate the flow rate of the water-side medium entering the water-side heat exchange structure and / or the plate heat exchanger.

8. The glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment according to claim 1, characterized in that, The control cabinet includes a data processing module and a control algorithm module. The control algorithm module includes a feedforward control unit and a feedback control unit. The feedforward control unit determines the initial target position of the heat pipe body based on the heat source temperature and water flow rate. The feedback control unit corrects the initial target position based on the deviation between the water temperature of the energy storage and insulation tank or the circulating water outlet temperature and the target temperature, and outputs control commands to the drive mechanism.

9. The glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment according to claim 1, characterized in that, The energy storage and insulation box includes an inner liner, a vacuum insulation panel, and a polyurethane foam layer. The vacuum insulation panel is disposed on the outside of the inner liner, and the polyurethane foam layer is disposed on the outside of the vacuum insulation panel or combined with the vacuum insulation panel. The water outlet of the energy storage and insulation box is connected to the water outlet for glass fiber impregnation agent preparation to provide hot water to the impregnation agent preparation process.

10. A method for controlling glass fiber waste heat recovery and energy storage, applied to the glass fiber waste heat recovery and energy storage system based on heat pipe position self-adjustment as described in any one of claims 1 to 9, characterized in that, Includes the following steps: Collect data on heat source temperature, circulating water temperature, energy storage and insulation tank water temperature, pipeline pressure and / or flow rate within the heat source channel; Based on the deviation between the water temperature of the energy storage and insulation box and the target water temperature, as well as the location or heat intensity of the high-temperature area in the heat source channel, determine the target insertion depth, target approach distance and / or target heat exchange position of the heat pipe body relative to the heat source channel. The control drive mechanism moves the heat pipe body to the target insertion depth, target proximity distance, and / or target heat exchange position; The opening of the electric regulating valve is adjusted by the PID algorithm, and the operating frequency of the circulating pump is adjusted so that the circulating water or the water used for configuration absorbs the waste heat transferred by the heat pipe body through the water-side heat exchange structure and then enters the energy storage and insulation box. When the water temperature in the energy storage and insulation box is lower than the lower limit of the preset temperature range, the heat pipe body is controlled to move closer to the high-temperature area in the heat source channel, and the circulation heat exchange intensity is increased; when the water temperature in the energy storage and insulation box reaches or exceeds the upper limit of the preset temperature range, the heat pipe body is controlled to move away from the high-temperature area, and the circulation heat exchange intensity is reduced.

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