Two-component spraying independent temperature control heating hose system and balancing method

Abstract

The invention relates to the technical field of two-component spraying, and discloses a two-component spraying independent temperature control heating hose system and a balancing method. A dual-channel independent heating hose group; an electric delivery pump unit; and an intelligent control module. The method comprises the following steps: step S01, an independent temperature control stage; s02, a dynamic balance stage; and step S03, a matching verification stage. A multi-channel PID temperature controller is combined with a self-adaptive learning algorithm, so that the heating power can be automatically adjusted according to the environment temperature change; meanwhile, the elliptical gear flow meter monitors flow in real time and feeds back data to the intelligent control module, and when the flow deviation exceeds + / -3%, a corresponding compensation mechanism is triggered, so that accurate temperature control and flow stability of the components A and B in the spraying process are ensured, the problem that in the prior art, accurate temperature control cannot be conducted on the components A and B respectively is solved, and the spraying quality is improved. And the stability and the reliability of the spraying quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of two-component spraying, in particular to an independent temperature-controlled heating hose system and a balancing method for two-component spraying. Background Art

[0002] In many industrial production fields, such as building insulation, pipeline anti-corrosion, automobile manufacturing and furniture industry, two-component spraying technology is widely used for material surface protection and decoration due to its excellent coating performance and high construction efficiency. This technology usually involves the mixing of two different chemical components, which form a strong coating through specific ratios and reactions, providing excellent protection and decorative effects for various substrates.

[0003] After searching, the Chinese patent number CN203540814U discloses that the utility model relates to a two-component spraying system; the purpose is to provide a two-component spraying system with large spraying volume and stable flow. A two-component spraying system includes an A material feed pump and a B material feed pump, the outlet of the A material feed pump is connected to the distributor through the A material spraying pipe, the outlet of the B material feed pump is connected to the distributor through the B material spraying pipe, and the distributor is connected to the spray gun through a pipeline. The two-component spraying system of the utility model uses an air pump to transport the two components separately and stably, mix them at the distributor, and then use them through the spray gun. It is particularly suitable for spraying materials with high material consistency, which require a large working pressure and a stable spraying flow. Both components flow in one direction. In the event of a main pump failure, the solvent cleaning pump can be opened to flush the pipeline to avoid material solidification and clogging of the equipment.

[0004] However, the two-component spraying system disclosed in the above patent includes an A material feed pump and a B material feed pump, which are respectively connected to a distributor through a paint spray pipe, and then connected to a spray gun by the distributor. Although this design is suitable for occasions where the material consistency is large and a higher working pressure and a stable spray flow are required, it does not involve an independent temperature control design for the heating hose system, and cannot accurately control the temperature of the A and B components respectively, which affects the subsequent spraying work. Based on this, the present invention designs an independent temperature control heating hose system and a balancing method for two-component spraying to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an independent temperature control heating hose system and a balancing method for two-component spraying, which solves the problem of lack of independent temperature control design for the heating hose system in the background art.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: An independent temperature-controlled heating hose system and balancing method for two-component spraying, comprising: Proportioner unit, integrating a brushless motor-driven high-pressure pump, an oval gear flowmeter, and a multi-channel PID temperature controller. The high-pressure pump has an output pressure of 137-241 bar and a flow rate of 5.7-11.3 LPM. Dual-channel independent heating hose set, including heating hoses for conveying components A and B respectively. Each hose has built-in resistance heating wire and RTD temperature sensor, and the outer layer is covered with multi-layer braided reinforced sheath; The electric delivery pump unit adopts CoreE1 electric delivery pump and communicates with the proportioner unit through the controller local area network bus; Intelligent control module, including touch screen operation interface and cellular network communication unit; The oval gear flowmeter feeds back flow data to the intelligent control module in real time, the RTD temperature sensor is connected to the multi-channel PID temperature controller, and the drive end of the CoreE1 electric delivery pump is controlled by the command signal of the intelligent control module.

[0007] Preferably, the proportioner unit further comprises an automatic pressure balancing module, which can automatically adjust the delivery pressure of components A and B when system pressure fluctuations are detected, so as to ensure the stability of the mixing ratio; the proportioner unit and the electric delivery pump unit are connected via a bus; High-speed data transmission is used to ensure real-time response and accurate execution of system instructions.

[0008] Preferably, the intelligent control module implements a system-level collaborative control strategy, and when the flow deviation exceeds ±3%, triggers one of the following compensation mechanisms: Scenario Q01, adjust the set temperature value of the PID thermostat of the lagging component; Scenario Q02: Increase the speed of the CoreE1 electric delivery pump by 5-10%; Scenario Q03, activating the 15kW heating mode for high-viscosity components; The intelligent control module has a built-in spraying operation database that can store spraying parameters of different materials, including pressure, temperature, flow rate and ratio data, and is used to automatically match corresponding spraying programs.

[0009] Preferably, the heating hose connector includes a plug-in mechanism with color-coded markings, the A component interface is marked red, the B component interface is marked blue, and is provided with an IP67-level moisture-proof sealing ring and a rotary locking buckle; the outer layer of the heating hose group is a composite sheath that is fire-proof, wear-resistant and UV-resistant, and the fire resistance rating of the heating hose group reaches UL94V-0 level.

[0010] Preferably, the electric delivery pump unit is equipped with a fast barrel switching device, and is used to complete the replacement of the barrel within 3 minutes without stopping the machine, which is particularly suitable for operation scenarios of alternating spraying of multiple colors or multiple materials.

[0011] Preferably, the intelligent control module further includes a GPS positioning unit and a remote diagnosis interface. Through the cellular network communication unit, operators can achieve real-time monitoring and fault diagnosis of equipment worldwide, with a network delay of less than 300ms.

[0012] Preferably, the oval gear flowmeter is equipped with a self-cleaning function, which automatically flushes the inside of the flowmeter with high-pressure liquid by periodically reversing the gear direction, thereby reducing measurement errors caused by impurities and extending the maintenance cycle to once every 3,000 hours.

[0013] Preferably, the multi-channel PID temperature controller includes an adaptive learning algorithm, which can automatically adjust the heating power according to changes in ambient temperature, so as to ensure that the temperature fluctuation of the material in the heating hose does not exceed ±1°C within the ambient temperature range of -20°C to 50°C.

[0014] Preferably, the system includes an automatic feed pump shutdown module, which can automatically stop the delivery pump and proportioner within 3 seconds when it detects that the material level in the barrel is lower than a preset threshold, and trigger an alarm to prompt the operator; the system also includes an energy management system for automatically adjusting the heater power according to actual spraying requirements.

[0015] Preferably, according to the second aspect of the present invention, a balancing method for the independent temperature-controlled heating hose for two-component spraying as described above is also provided, comprising the following steps: Step S01, independent temperature control stage, setting target temperatures of components A and B to 40-80°C respectively; Step S02, dynamic balance stage, real-time monitoring of the delivery pump inlet pressure. When it is below 80 psi, the temperature of the lagging component is increased by 2°C or the pump speed is increased by 5%. When it is above 200 psi, the heating power of the leading component is reduced by 1 kW. Step S03, the ratio verification stage, when the actual ratio deviates from the set value by more than 3%, temperature compensation and flow correction based on the viscosity difference between the two components are performed; The method also includes the following three working modes: Mode M01, spraying mode, high-pressure pump running at full power; Mode M02, slow delivery mode, circulates and flushes at 50% of the rated flow rate and counts down to stop; Mode M03, parking mode, maintains an anti-curing temperature of 60°C.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a multi-channel PID temperature controller is combined with an adaptive learning algorithm to automatically adjust the heating power according to changes in ambient temperature. At the same time, the elliptical gear flowmeter monitors the flow in real time and feeds back data to the intelligent control module. When the flow deviation exceeds ±3%, the corresponding compensation mechanism is triggered, thereby ensuring the precise temperature control and flow stability of components A and B during the spraying process, solving the problem in the prior art that it is impossible to accurately control the temperature of components A and B separately, and improving the stability and reliability of the spraying quality.

[0017] 2. In this invention, the automatic pressure balancing module in the proportioner unit automatically adjusts the delivery pressure of components A and B upon detecting system pressure fluctuations, ensuring a stable mixing ratio. This effectively avoids inaccurate mixing ratios caused by pressure fluctuations, ensures consistent coating performance, and resolves the pressure balancing issue not addressed in the prior art, thereby improving the quality and performance of the coating.

[0018] 3. In the present invention, high-speed data transmission between the proportioner unit and the electric delivery pump unit via a bus ensures real-time response and accurate execution of system instructions. The intelligent control module has a built-in spray operation database that can store spray parameters for different materials and automatically match the corresponding spray program. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall flow chart of the system of the present invention; Figure 2 This is a flow chart of the intelligent control strategy of the present invention; Figure 3 It is the overall flow chart of the method of the present invention; Figure 4 It is a flow chart of the working mode of the present invention. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0021] See also Figure 1-Figure 4 , an independent temperature-controlled heated hose system for two-component spraying, comprising: Proportioner unit, integrating a brushless motor-driven high-pressure pump, an oval gear flowmeter, and a multi-channel PID temperature controller. The high-pressure pump has an output pressure of 137-241 bar and a flow rate of 5.7-11.3 LPM. Dual-channel independent heating hose set, including heating hoses for conveying components A and B respectively. Each hose has built-in resistance heating wire and RTD temperature sensor, and the outer layer is covered with multi-layer braided reinforced sheath; The electric delivery pump unit adopts CoreE1 electric delivery pump and communicates with the proportioner unit through the controller local area network bus; Intelligent control module, including touch screen operation interface and cellular network communication unit; The oval gear flowmeter feeds back flow data to the intelligent control module in real time, the RTD temperature sensor is connected to the multi-channel PID temperature controller, and the drive end of the CoreE1 electric delivery pump is controlled by the command signal of the intelligent control module.

[0022] The proportioner unit also includes an automatic pressure balancing module, which can automatically adjust the delivery pressure of components A and B when system pressure fluctuations are detected to ensure the stability of the mixing ratio. The proportioner unit and the electric delivery pump unit are connected via a bus; high-speed data transmission is used to ensure real-time response and precise execution of system instructions. The intelligent control module implements a system-level collaborative control strategy. When the flow deviation exceeds ±3%, one of the following compensation mechanisms is triggered: Scenario Q01, adjusts the set temperature value of the PID thermostat of the lagging component; Scenario Q02, increases the speed of the CoreE1 electric delivery pump by 5-10%; Scenario Q03, activates the 15kW heating mode for high-viscosity components; The intelligent control module has a built-in spray operation database that can store spray parameters for different materials, including pressure, temperature, flow rate and ratio data, and is used to automatically match the corresponding spray program.

[0023] The heated hose connector features a color-coded plug-in mechanism, with component A marked red and component B marked blue. It also features an IP67-rated moisture-proof seal and a rotating locking clip. The heated hose assembly is sheathed in a composite material that is fire-resistant, wear-resistant, and UV-resistant, achieving a UL94V-0 fire resistance rating. The electric transfer pump unit is equipped with a quick-drum switching mechanism, allowing for continuous drum changes within three minutes, making it ideal for spraying multiple colors or materials in alternating patterns. The intelligent control module further includes a GPS positioning unit and a remote diagnostic interface. Through a cellular network communication unit, operators can monitor and diagnose faults globally in real time, with a network latency of less than 300ms. The oval gear flowmeter is equipped with a self-cleaning function that periodically reverses the gear direction to automatically flush the flowmeter interior with high-pressure liquid, reducing measurement errors caused by impurities and extending the maintenance cycle to every 3,000 hours.

[0024] The multi-channel PID thermostat includes an adaptive learning algorithm that automatically adjusts heating power based on ambient temperature fluctuations, ensuring that the material temperature in the heated hose fluctuates within ±1°C within an ambient temperature range of -20°C to 50°C. The system also includes an automatic feed pump shutdown module that automatically stops the feed pump and proportioner within 3 seconds and triggers an alarm to alert the operator when the material level in the barrel falls below a preset threshold. The system also includes an energy management system that automatically adjusts heater power based on actual spraying needs.

[0025] The working principle of this embodiment of the present invention is to achieve efficient spraying operations through the coordinated operation of various units. The brushless motor-driven high-pressure pump, the core component of the proportioner unit, provides powerful power to the system, delivering components A and B at a set pressure and flow rate. The pressure is adjustable within a range of 137-241 bar to meet the spraying requirements of different materials. An oval gear flowmeter monitors the flow rate in real time and feeds data back to the intelligent control module to ensure precise flow control. A multi-channel PID thermostat, combined with an adaptive learning algorithm, automatically adjusts heating power based on ambient temperature, maintaining a stable material temperature within the heated hose within a range of -20°C to 50°C, within ±1°C. The dual-channel independent heated hose assembly incorporates built-in resistance heating wires and RTD temperature sensors, combined with a multi-layer braided reinforced outer sheath, ensuring precise heating and stable delivery of components A and B in independent channels. The outer sheath also provides mechanical protection. The CoreE1 pump of the electric transfer pump unit is controlled by the intelligent control module, accurately delivering the components to the proportioner unit according to instructions. The automatic pressure balancing module monitors system pressure fluctuations in real time and intelligently adjusts the delivery pressure of components A and B to ensure a stable mixing ratio. The intelligent control module allows users to intuitively set parameters through a touch screen interface, and uses a cellular network communication unit to achieve global real-time monitoring and fault diagnosis. The network delay is less than 300ms, improving equipment management efficiency. The color-coded and moisture-proof sealing design of the heated hose connector facilitates operation and improves reliability. The fast barrel switching device supports non-stop barrel replacement to meet the needs of multi-color or multi-material alternating spraying. The GPS positioning unit enhances equipment location management. The self-cleaning function of the oval gear flowmeter extends the maintenance cycle to 3000 hours by periodically reversing and flushing the interior. The automatic feed pump shutdown module quickly shuts down and alarms when the liquid level falls below the threshold to ensure equipment safety. The energy management system automatically adjusts the heater power according to spraying needs to achieve energy-saving operation. Example

[0026] See also Figure 1-Figure 4 In an embodiment of the present invention, the method includes the following steps: Step S01, independent temperature control stage, setting target temperatures of components A and B to 40-80°C respectively; Step S02, dynamic balance stage, real-time monitoring of the delivery pump inlet pressure. When it is below 80 psi, the temperature of the lagging component is increased by 2°C or the pump speed is increased by 5%. When it is above 200 psi, the heating power of the leading component is reduced by 1 kW. Step S03, the ratio verification stage, when the actual ratio deviates from the set value by more than 3%, temperature compensation and flow correction based on the viscosity difference between the two components are performed; The method also includes the following three working modes: Mode M01, spraying mode, high-pressure pump running at full power; Mode M02, slow delivery mode, circulates and flushes at 50% of the rated flow rate and counts down to stop; Mode M03, parking mode, maintains an anti-curing temperature of 60°C.

[0027] The working principle of the embodiment of the present invention is to ensure the quality and efficiency of spraying by precisely controlling the temperature, pressure and flow of components A and B in stages. In the independent temperature control stage, the target temperatures of components A and B are set in the range of 40-80°C respectively, and the temperature is precisely controlled according to the material properties, laying the foundation for subsequent mixing and spraying. In the dynamic balance stage, the inlet pressure of the delivery pump is monitored in real time. When it is lower than 80psi, the flow rate is adjusted by raising the temperature of the lagging component by 2°C or increasing the pump speed by 5% to maintain stable delivery; and when the pressure is higher than 200psi, the heating power of the leading component is reduced by 1kW to prevent overheating and flow abnormalities, and dynamically adapt to pressure fluctuations during the spraying process. In the ratio verification stage, if the actual ratio deviates from the set value by more than 3%, temperature compensation and flow correction are performed based on the viscosity difference between the two components. The viscosity of the components is changed by temperature regulation, or the speed of the delivery pump is adjusted to correct the flow deviation to ensure the accuracy of the mixing ratio. The method covers three working modes: spray mode, slow delivery mode and stop mode. In spray mode, the high-pressure pump runs at full power to ensure high-speed and stable material transportation to meet the needs of normal spraying operations; in slow delivery mode, the system is flushed at 50% of the rated flow rate and the system stops with a countdown to prevent the material from solidifying. This is suitable for short-term spraying stops; in stop mode, the anti-solidification temperature is maintained at 60°C. This is suitable for longer shutdowns to ensure material fluidity, reduce waste, and reduce cleaning difficulty. Example

[0028] See also Figure 1-Figure 4In the embodiment of the present invention, a specific embodiment is provided. The device integrates a high-pressure pump driven by a 2.5HP brushless motor, with a maximum output pressure of 241bar and a rated flow rate of 7.5LPM. It is also equipped with a 15kW dual heater and an elliptical gear flowmeter with an accuracy of ±0.5%. The heating hose group uses two 30-meter Xcelerator built-in heating hoses to transport components A and B respectively. Hose A uses a red-labeled connector and is set to a target temperature of 65 degrees Celsius. Hose B uses a blue-labeled connector and is set to a target temperature of 58 degrees Celsius. Both have built-in RTD temperature sensors and the outer layer fire resistance rating meets the UL94V-0 standard. The electric delivery pump unit is equipped with a CoreE1 pump group, which communicates with the proportioner in real time via the CAN bus. The inlet pressure monitoring range covers 80 to 200psi.

[0029] During the independent temperature control phase, the operator set the target temperature of the isocyanate component A to 65°C (corresponding to a viscosity of 450 cP) and the target temperature of the resin component B to 58°C (corresponding to a viscosity of 850 cP) via the ADM touchscreen. The multi-channel PID thermostat activated an adaptive heating program. When the ambient temperature reached 15°C, it automatically increased the initial heating power to 8 kW. After five minutes of heating, the temperature of hose A stabilized at 65 ± 0.8°C, and the temperature of hose B stabilized at 58 ± 0.7°C. After entering the dynamic balancing phase, the CoreE1 pump started operating and monitored the inlet pressure in real time. When the inlet pressure of component B dropped to 75 psi (below the 80 psi threshold), the system immediately triggered the intelligent feeding function: the B pump speed increased by 8% and the B hose temperature increased by 2°C to 60°C.

[0030] During the ratio verification stage, the oval gear flowmeter detected that the actual flow rate of component A was 3.82LPM and the actual flow rate of component B was 3.68LPM under the set ratio of 1:1, with a deviation of minus 3.7%. The system automatically triggered the high viscosity compensation mechanism, activated the 15kW heating mode for component B and raised the temperature to 63 degrees Celsius. After correction, the flow rate of component A was 3.80LPM and the flow rate of component B was 3.79LPM, and the deviation was reduced to ±0.3%.

[0031] In spray mode, the high-pressure pump operated at full power at 241 bar, completing a 200-square-meter polyurea coating application with a material utilization rate of 98.5%. When the tank level dropped to the 10% threshold, the feed pump shutdown module halted the system within 3 seconds. Using ProConnect technology, the operator replaced tank B in just 2 minutes and 15 seconds. The remote diagnostic module, using ReactorConnect, detected an abnormal temperature fluctuation of ±3 degrees Celsius in hose A and remotely calibrated the PID parameters and activated the flow meter self-cleaning function. A 3-second gear reversal flushed out impurities and restored measurement accuracy.

[0032] This system achieves a temperature control accuracy of 65±0.8 degrees Celsius for hose A and 63±0.7 degrees Celsius for hose B; the inlet pressure is stabilized within the range of 105±5psi; the ratio deviation is ultimately controlled within ±0.3%, the quick barrel change operation takes 2 minutes and 15 seconds, the spray material utilization rate reaches 98.5%, and the standby energy consumption is only 2.8 kilowatts, which saves 32% energy compared to traditional systems.

[0033] Working Principle: An intelligent control module coordinates each unit for efficient spraying. The proportioner unit's high-pressure pump provides power, delivering components A and B at a set pressure and flow rate, with an adjustable pressure range of 137-241 bar. An oval gear flowmeter monitors flow in real time, and a multi-channel PID thermostat, combined with an adaptive learning algorithm, automatically adjusts heating power based on ambient temperature, maintaining material temperature fluctuations within the heated hose within ±1°C. The dual-channel independent heated hose assembly features built-in resistance heating wires and RTD temperature sensors, along with a multi-layer braided reinforced outer jacket, ensuring precise heating and stable delivery of components A and B in independent channels. An automatic pressure balancing module monitors system pressure fluctuations in real time and intelligently adjusts the delivery pressure of components A and B to ensure a stable mixing ratio. The intelligent control module offers intuitive parameter settings through a touchscreen interface and utilizes a cellular network communication unit for global real-time monitoring and fault diagnosis, with network latency less than 300ms. The heated hose connectors feature color-coded markings and moisture-proof seals for ease of operation and enhanced reliability. A quick drum switching mechanism allows for continuous drum changes, meeting multi-color or multi-material spraying requirements. The GPS positioning unit enhances equipment location management. The oval gear flowmeter's self-cleaning function periodically reverses and flushes the interior, extending maintenance intervals to 3,000 hours. The automatic feed pump shutdown module quickly shuts down and issues an alarm when the liquid level falls below the threshold, ensuring equipment safety. The energy management system automatically adjusts heater power based on spraying demand, achieving energy-efficient operation. The system also includes three operating modes: spray mode, slow feed mode, and park mode, providing flexibility in different scenarios and ensuring efficient and accurate spraying operations.

[0034] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An independent temperature-controlled heating hose system for two-component spraying, characterized in that: include: Proportioner unit, integrating a brushless motor-driven high-pressure pump, an oval gear flowmeter, and a multi-channel PID temperature controller. The high-pressure pump has an output pressure of 137-241 bar and a flow rate of 5.7-11.3 LPM. Dual-channel independent heating hose set, including heating hoses for conveying components A and B respectively. Each hose has built-in resistance heating wire and RTD temperature sensor, and the outer layer is covered with multi-layer braided reinforced sheath; The electric delivery pump unit adopts CoreE1 electric delivery pump and communicates with the proportioner unit through the controller local area network bus; Intelligent control module, including touch screen operation interface and cellular network communication unit; The oval gear flowmeter feeds back flow data to the intelligent control module in real time, the RTD temperature sensor is connected to the multi-channel PID temperature controller, and the drive end of the CoreE1 electric delivery pump is controlled by the command signal of the intelligent control module.

2. The independent temperature-controlled heating hose system for two-component spraying according to claim 1, characterized in that: The proportioner unit also includes an automatic pressure balancing module, which can automatically adjust the delivery pressure of components A and B when system pressure fluctuations are detected to ensure the stability of the mixing ratio; the proportioner unit and the electric delivery pump unit are connected via a bus; High-speed data transmission is used to ensure real-time response and accurate execution of system instructions.

3. The independent temperature-controlled heating hose system for two-component spraying according to claim 1, characterized in that: The intelligent control module implements a system-level collaborative control strategy. When the flow deviation exceeds ±3%, it triggers one of the following compensation mechanisms: Scenario Q01, adjust the set temperature value of the PID thermostat of the lagging component; Scenario Q02: Increase the speed of the CoreE1 electric delivery pump by 5-10%; Scenario Q03, activating the 15kW heating mode for high-viscosity components; The intelligent control module has a built-in spraying operation database that can store spraying parameters of different materials, including pressure, temperature, flow rate and ratio data, and is used to automatically match corresponding spraying programs.

4. The independent temperature-controlled heating hose system for two-component spraying according to claim 1, characterized in that: The heating hose connector includes a plug-in mechanism with color-coded markings. The A component interface is marked red, and the B component interface is marked blue. It is also equipped with an IP67-level moisture-proof sealing ring and a rotary locking buckle. The outer layer of the heating hose group is a composite sheath that is fire-proof, wear-resistant and UV-resistant. The fire resistance rating of the heating hose group reaches UL94V-0 level.

5. The independent temperature-controlled heating hose system for two-component spraying according to claim 1, characterized in that: The electric conveying pump unit is equipped with a fast barrel switching device, and is used to complete the replacement of the barrel within 3 minutes without stopping the machine. It is particularly suitable for operation scenarios where multiple colors or multiple materials are sprayed alternately.

6. The independent temperature-controlled heating hose system for two-component spraying according to claim 1, characterized in that: The intelligent control module further includes a GPS positioning unit and a remote diagnostic interface. Through the cellular network communication unit, operators can achieve real-time monitoring and fault diagnosis of equipment worldwide, with a network delay of less than 300ms.

7. The independent temperature-controlled heating hose system for two-component spraying according to claim 1, characterized in that: The oval gear flowmeter is equipped with a self-cleaning function. By periodically reversing the gear direction, the flowmeter interior is automatically flushed with high-pressure liquid, reducing measurement errors caused by impurities and extending the maintenance cycle to once every 3,000 hours.

8. The independent temperature-controlled heating hose system for two-component spraying according to claim 1, characterized in that: The multi-channel PID temperature controller includes an adaptive learning algorithm that can automatically adjust the heating power according to changes in ambient temperature, ensuring that the material temperature in the heating hose fluctuates by no more than ±1°C within an ambient temperature range of -20°C to 50°C.

9. The independent temperature-controlled heating hose system for two-component spraying according to claim 1, characterized in that: The system includes an automatic feed pump shutdown module, which can automatically stop the feed pump and proportioner within 3 seconds and trigger an alarm to alert the operator when it detects that the material liquid level in the barrel is lower than a preset threshold; the system also includes an energy management system for automatically adjusting the heater power according to actual spraying needs.

10. A balancing method for a two-component spraying independent temperature-controlled heating hose, using the two-component spraying independent temperature-controlled heating hose system according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step S01, independent temperature control stage, setting target temperatures of components A and B to 40-80°C respectively; Step S02, dynamic balance stage, real-time monitoring of the delivery pump inlet pressure. When it is below 80 psi, the temperature of the lagging component is increased by 2°C or the pump speed is increased by 5%. When it is above 200 psi, the heating power of the leading component is reduced by 1 kW. Step S03, the ratio verification stage, when the actual ratio deviates from the set value by more than 3%, temperature compensation and flow correction based on the viscosity difference between the two components are performed; The method also includes the following three working modes: Mode M01, spraying mode, high-pressure pump running at full power; Mode M02, slow delivery mode, circulates and flushes at 50% of the rated flow rate and counts down to stop; Mode M03, parking mode, maintains an anti-curing temperature of 60°C.

Images