Condensate water reuse control system of high-temperature-resistant and high-humidity-resistant electric concrete mixer
By designing a condensate reuse control system on an electric concrete mixer, the problem of inaccurate temperature control in high-temperature and high-humidity environments is solved, precise cooling of key components is achieved, the operation efficiency and stability of the equipment are improved, and the operational efficiency and stability of the equipment are reduced. Energy consumption and resource waste.
Patent Information
- Application Number
- CN202411438715.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2024-12-10
AI Technical Summary
In high temperature and high humidity environment, the temperature analysis of key components of electric concrete mixer trucks is not accurate enough, resulting in inaccurate temperature control and affecting the equipment operation stability and construction progress.
A high-temperature and high humidity electric concrete mixer truck has been designed to reuse condensate water, including a condensate collection device, a water storage tank, an auxiliary cooling circulation device, a detection device and a controller. By real-time detection of temperature and flow, the condensation is dynamically adjusted. Water transport and cooling methods optimize cooling parameters to ensure accurate cooling of key components.
Accurate temperature control of key components of electric concrete mixer trucks is achieved, energy consumption and resource waste are reduced, equipment performance and efficiency are improved, greenhouse gas emissions are reduced, and thermal stress and thermal deformation caused by high temperatures are avoided.
Smart Images
Figure CN119099291A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mixer truck control, and in particular to a condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck. Background Art
[0002] During the tunnel construction process, the special high temperature and high humidity environment in the tunnel poses a huge challenge to the stable operation of the electric concrete mixer truck. For example, during the construction of a high-temperature tunnel on the plateau railway, the average temperature in the tunnel exceeds 45°C and the relative humidity is usually maintained at more than 70%. In such an environment, the heat exchange capacity of the construction machinery is significantly reduced. Long-term continuous operation may cause the temperature of the construction machinery parts to be too high and cannot be effectively cooled in time, so it is necessary to temporarily stop the operation to cool down, which seriously affects the progress and safety of the tunnel construction. In addition, in high-humidity tunnels, the air-conditioning system of the construction machinery needs to run continuously to reduce the temperature of core components such as the carriage cab. However, when the air-conditioning system is running in a high-humidity environment, a large amount of low-temperature condensed water (the temperature can be as low as 10-15°C) will be generated, which is usually directly discharged and cannot be effectively recycled, resulting in a waste of resources. If these low-temperature condensed water can be collected and used for the heat dissipation of key components, it can not only improve the cooling efficiency of key components during the operation of the electric mixer truck, reduce dependence on external cooling resources, but also improve energy efficiency.
[0003] Chinese patent application publication number: CN221457246U discloses an air conditioning system with condensed water for auxiliary cooling, belonging to the field of air conditioning systems. The technical solution adopted by the utility model is an air conditioning system with condensed water for auxiliary cooling, including an HVAC assembly and a refrigerator liquid storage tank, a refrigeration component is provided inside the HVAC assembly, the refrigerator liquid storage tank is connected to the refrigeration component through a conduit, a condensed water discharge component is provided inside the HVAC assembly, the condensed water discharge component includes a drainage port, the drainage port is externally connected to a guide member, and the guide member is used to guide the condensed water discharged from the drainage port to the outer surface of the refrigerator liquid storage tank to cool the refrigerator liquid storage tank; the utility model makes full use of the low temperature of the condensed water, dissipates heat and cools the outer shell of the refrigerator liquid storage tank, and then cools the refrigerant entering the condenser liquid storage tank, improves the refrigerant supercooling, and improves the air conditioning performance, especially in a high temperature and high humidity environment, a large amount of condensed water flows out, effectively enhancing the refrigeration effect of the condenser liquid storage tank.
[0004] It can be seen that the prior art is not accurate enough in analyzing the temperature of key components during the operation of the electric concrete mixer truck, which makes it impossible to achieve accurate temperature control of the key components, thus causing the electric concrete mixer truck to operate abnormally. Summary of the invention
[0005] To this end, the present invention provides a high temperature and high humidity resistant electric concrete mixer truck condensate reuse control system, aiming to solve the problem of abnormal operation of the electric concrete mixer truck caused by inaccurate temperature analysis and inaccurate temperature control of key components in the prior art.
[0006] To achieve the above object, the present invention provides a condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck, comprising:
[0007] A condensed water collection device, which is located below the air-conditioning evaporator of the concrete mixer truck and is used to collect condensed water generated by the air-conditioning;
[0008] A water storage tank, which is connected to the condensed water collecting device through a drainage pipe, comprises a water level sensor and a drain valve, and is used to store condensed water;
[0009] An auxiliary cooling circulation device, which is connected to the water storage tank and includes a water pump, a condensation pipeline, a plurality of heat dissipation units and a heat exchanger, and is used to circulate condensed water to cool the key components;
[0010] A detection device, which is arranged at each of the key components, including a temperature sensor and a flow sensor, for detecting the temperature of the key components and the condensed water flow in real time;
[0011] The controller is respectively connected to the condensate collection device, the water storage tank, the auxiliary cooling circulation device and the detection device, and includes the following functional units: a transportation control unit, used to determine the opening of the drain valve during the condensate transportation process according to the maximum temperature level and the first maximum heating rate of each key component; a cooling control unit, used to determine the appropriate cooling method according to the second maximum heating rate of the key component after the condensate is cooled and the average temperature of the condensate in the auxiliary cooling circulation device; an optimization unit, used to determine whether the cooling process parameters need to be optimized and adjusted according to the maximum load change of each key component after cooling.
[0012] A delivery control unit for determining the opening of the drain valve in the condensate delivery according to the level of the highest temperature in each of the key components and the first maximum temperature rise rate of each of the key components, a cooling control unit for determining the cooling method according to the second maximum temperature rise rate of the key components after condensate cooling and the average temperature of the condensate in the auxiliary cooling circulation device, and an optimization unit for determining whether to optimize the cooling process parameters according to the maximum load change of each qualified key component after cooling;
[0013] Wherein, the cooling method includes increasing the power of the water pump, dynamically distributing condensed water, and replacing the condensed water in the auxiliary cooling circulation device.
[0014] Furthermore, the transport control unit determines the opening of the drain valve in the condensate transport, including:
[0015] When the highest temperature in each key component is at the first level, the transport control unit determines to transport the condensed water in the water storage tank to the auxiliary cooling circulation device at the maximum opening of the drain valve to ensure sufficient cooling;
[0016] When the highest temperature of each key component of the transport control unit is at the second level and the first maximum heating rate of each key component is greater than the first preset heating rate, the transport control unit will dynamically adjust the opening of the drain valve according to the comparison result, and transport the condensed water in the water storage tank to the auxiliary cooling circulation device to achieve more precise temperature control.
[0017] Furthermore, when judging the maximum temperature level of each key component, the maximum temperature is determined as the first level based on the comparison result that the maximum temperature is greater than the cooling temperature, and the first preset heating rate is determined based on the historical heating rate of the key component to ensure the accuracy and reliability of temperature control.
[0018] Furthermore, the cooling control unit determines the cooling mode according to the second maximum temperature rise rate of the key component after cooling by condensed water and the average temperature of condensed water in the auxiliary cooling circulation device, including the following steps:
[0019] The cooling control unit determines the maximum difference analysis of the heating rates of the key components according to the comparison result that the second maximum heating rate of the key components after cooling by condensed water is greater than the second preset heating rate, and the average temperature of condensed water is less than the preset condensed water temperature;
[0020] The cooling control unit determines to replace the condensed water in the auxiliary cooling circulation device according to the comparison result that the second maximum heating rate of each key component after cooling with condensed water is greater than the second preset heating rate, and the average temperature of the condensed water is greater than or equal to the preset condensed water temperature.
[0021] Furthermore, the second preset heating rate is determined according to the first preset heating rate, and the preset condensed water temperature is determined according to the lowest temperature of the key component for condensation.
[0022] Furthermore, when the cooling control unit determines to analyze the maximum difference in the heating rates of the key components, the following steps are included:
[0023] The cooling control unit determines the dynamic allocation of condensed water according to the comparison result that the maximum difference of the heating rates of the key components is greater than or equal to the preset difference;
[0024] The cooling control unit determines to increase the water pump power according to a comparison result that the maximum difference of the heating rates of the key components is less than a preset difference.
[0025] Furthermore, the preset difference is determined based on an average difference in heating rates of key components.
[0026] Further, the optimization unit determines that the optimization of the cooling process parameters includes the following steps:
[0027] The optimization unit determines to optimize and adjust the cooling process parameters based on the fact that the maximum load variation of each qualified key component after cooling is not within the preset load variation range, wherein the cooling process parameters include the condensing water flow rate and the preset condensing water temperature.
[0028] Furthermore, the preset load variation range is determined according to the maximum load in each key component.
[0029] Furthermore, the optimization amount of the condensing water flow is positively correlated with the maximum load variation of each key component, and the optimization amount of the preset condensing water temperature is negatively correlated with the maximum load variation of each key component, which ensures the cooling efficiency and stability of the system under different load conditions.
[0030] Compared with the prior art, the beneficial effect of the present invention is that the use of condensed water for auxiliary cooling realizes the effective use of resources, reduces the dependence on external cooling media, and reduces energy consumption. Especially in high temperature and high humidity environments, traditional cooling methods may require a lot of energy to maintain the normal operating temperature of the equipment, while the use of condensed water cooling can save energy.
[0031] Accurate condensate delivery control can avoid unnecessary condensate waste and improve the utilization efficiency of water resources. At the same time, reasonable cooling control can also reduce the energy consumption of equipment and reduce greenhouse gas emissions. Accurate cooling control can reduce the operating temperature of key components and reduce thermal stress and thermal deformation caused by high temperature, thereby improving the performance and accuracy of equipment. Through the above method, the accuracy of temperature control of key components is improved.
[0032] Furthermore, the present invention adjusts the water pump power and replaces the condensed water according to the actual situation, thereby effectively avoiding unnecessary energy waste. When the cooling demand is low, the water pump power can be reduced to reduce energy consumption. When the condensed water temperature is too high, the condensed water is replaced in time to avoid the situation where the high-power water pump is continuously running but cannot be effectively cooled. This measure not only saves energy, but also realizes the reuse of condensed water, reduces dependence on external cooling media, and reduces harm to the environment. By determining the corresponding operation according to the second maximum heating rate of the key components after condensate cooling and the average temperature of the condensate, fine adjustment of the cooling process can be achieved. By real-time monitoring of these parameters, it is possible to accurately judge whether the cooling effect meets expectations, so as to take effective measures to make adjustments in time. When the second maximum heating rate is greater than the second preset heating rate and the average temperature of the condensate is less than the preset condensate temperature, a maximum difference analysis of the heating rates of the key components is performed, which helps to find out the uneven cooling parts, adjust the distribution and flow of the condensate in a targeted manner, and improve the uniformity and effectiveness of the cooling. When the second maximum heating rate is greater than the second preset heating rate and the average temperature of the condensate is greater than or equal to the preset condensate temperature, the condensate in the auxiliary cooling circulation device is replaced. This can ensure that the condensate always maintains a good cooling performance state and avoid affecting the cooling effect due to excessively high condensate temperature. Through the above method, the accuracy of temperature control of each key component is significantly improved.
[0033] Furthermore, the present invention avoids unnecessary waste of condensed water by dynamically allocating condensed water. When certain key components do not need excessive cooling, condensed water can be allocated to parts that need cooling more, thereby improving the utilization efficiency of condensed water and saving energy. At the same time, increasing the power of the water pump can provide sufficient cooling capacity when needed, and avoid excessive energy consumption when not needed. By accurately regulating according to actual conditions, optimal utilization of energy is achieved, reducing the operating cost of the equipment.
[0034] By analyzing the maximum difference in the heating rates of key components, it is possible to accurately identify unbalanced cooling demands. When the maximum difference is compared with the preset difference, it is possible to determine in a timely manner whether further cooling measures are needed, thereby achieving precise control of the cooling process. Based on different comparison results, dynamic allocation of condensed water or increase in water pump power can be determined, which can solve the cooling imbalance problem in a targeted manner. Through the above method, the accuracy of temperature control of key components is improved.
[0035] Furthermore, the present invention determines whether to optimize the cooling process parameters by comparing the maximum load change of each key component with a preset load change range. Considering that the key components will experience load changes when the electric concrete mixer truck needs to realize the functions of mixing, transporting and climbing, the temperature of the key components will also change with the load change. By monitoring the load changes and optimizing the cooling process of the key components, it is possible to avoid the temperature of the key components being greater than the maximum withstand temperature due to load changes, thereby reducing the risk of equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 This is a schematic diagram of the structure of a condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to an embodiment of the present invention;
[0037] Figure 2 This is a schematic diagram of the structure of a controller in a condensate water recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to an embodiment of the present invention;
[0038] Figure 3 This is a working flow chart of an optimization unit in a condensate water recycling control system of a high temperature and high humidity resistant electric concrete mixer truck according to an embodiment of the present invention;
[0039] Figure 4 This is a schematic diagram of the structure of an auxiliary cooling circulation device in a condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to an embodiment of the present invention;
[0040] In the figure: 1, water storage tank; 2, water pump; 3, condensate water inlet pipe; 4, heat dissipation unit; 5, condensate water outlet pipe; 6, heat exchanger. DETAILED DESCRIPTION
[0041] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0042] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.
[0043] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.
[0044] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0045] See also Figure 1-Figure 4 As shown, Figure 1 This is a schematic diagram of the structure of a condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a controller in a condensate water recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to an embodiment of the present invention; Figure 3 This is a working flow chart of an optimization unit in a condensate water recycling control system of a high temperature and high humidity resistant electric concrete mixer truck according to an embodiment of the present invention; Figure 4 The present invention is a schematic structural diagram of an auxiliary cooling circulation device in a condensate recycling control system of a high temperature and high humidity resistant electric concrete mixer truck.
[0046] The condensate recycling control system of a high temperature and high humidity resistant electric concrete mixer truck according to the embodiment of the present invention comprises:
[0047] A condensed water collection device, which is located below the air-conditioning evaporator of the concrete mixer truck and is used to collect condensed water generated by the air-conditioning;
[0048] A water storage tank, which is connected to the condensed water collecting device through a drainage pipe, comprises a water level sensor and a drain valve, and is used to store condensed water;
[0049] An auxiliary cooling circulation device, which is connected to the water storage tank 1, includes a water pump 2, a condensation pipeline, a plurality of heat dissipation units 4 and a heat exchanger 6, and is used to circulate condensed water to cool the key components;
[0050] A detection device, which is arranged at each of the key components, including a temperature sensor and a flow sensor, for detecting the temperature of the key components and the condensed water flow in real time;
[0051] a controller, which is respectively connected to the condensate collection device, the water storage tank, the auxiliary cooling circulation device and the detection device, and includes a delivery control unit for determining the opening of the drain valve in the condensate delivery according to the level of the highest temperature in each of the key components and the first maximum temperature rise rate of each of the key components, a cooling control unit for determining the cooling method according to the second maximum temperature rise rate of the key components after condensate cooling and the average temperature of the condensate in the auxiliary cooling circulation device, and an optimization unit for determining whether to optimize the cooling process parameters according to the maximum load change of each qualified key component after cooling;
[0052] Wherein, the cooling method includes increasing the power of the water pump, dynamically distributing condensed water, and replacing the condensed water in the auxiliary cooling circulation device.
[0053] The several heat dissipation units described in the embodiment of the present invention include but are not limited to "engine cooling water jacket and hydraulic oil tank heat sink", the several key components described include but are not limited to "electric motor, battery pack and hydraulic pump", and the condensation pipe includes a condensation water inlet pipe 3 and a condensation water outlet pipe 5.
[0054] Specifically, the transport control unit determines the opening of the drain valve in the condensate transport according to the level of the highest temperature of each key component and the first maximum temperature rise rate of each key component;
[0055] The transport control unit determines to transport the condensed water in the water storage tank to the auxiliary cooling circulation device at the maximum opening of the drain valve under the condition that the highest temperature in each key component is at the first level;
[0056] The transport control unit determines that the condensed water inside the water storage tank is transported to the auxiliary cooling circulation device according to the dynamic opening of the drain valve when the comparison result shows that the highest temperature of each key component is at the second level and the first maximum heating rate of each key component is greater than the first preset heating rate.
[0057] In an embodiment of the present invention, determining the level of the maximum temperature of each key component includes determining that the level of the maximum temperature is the first level based on a comparison result that the maximum temperature is greater than the cooling temperature, the first preset heating rate is the average value of the historical heating rates of the key component, and the cooling temperature is nine-tenths of the historical average value of the temperature when the key component needs to be cooled during historical working processes, but the above values are not limited to this, and technical personnel in this field can also adjust the values according to actual needs.
[0058] In the embodiment of the present invention, the dynamic opening of the drain valve is determined according to the average value of the drain valve opening corresponding to the first maximum temperature rise rate of each key component in the historical data, and the dynamic opening is re-determined every 60 seconds.
[0059] The present invention utilizes condensed water for auxiliary cooling, thereby realizing effective utilization of resources, reducing dependence on external cooling media, and reducing energy consumption. Especially in high temperature and high humidity environments, traditional cooling methods may require a large amount of energy to maintain the normal operating temperature of the equipment, while the use of condensed water cooling can save energy. Accurate condensed water delivery control can avoid unnecessary waste of condensed water and improve the utilization efficiency of water resources. At the same time, reasonable cooling control can also reduce the energy consumption of the equipment and reduce greenhouse gas emissions. Accurate cooling control can reduce the operating temperature of key components and reduce thermal stress and thermal deformation caused by high temperature, thereby improving the performance and accuracy of the equipment. The above method improves the accuracy of temperature control of each key component.
[0060] Specifically, the cooling control unit determines the cooling mode according to the second maximum temperature rise rate of the key component after cooling by condensed water and the average temperature of condensed water in the auxiliary cooling circulation device;
[0061] The cooling control unit determines a maximum difference analysis of the heating rates of the key components according to a comparison result that the second maximum heating rate of the key components after cooling by condensed water is greater than the second preset heating rate and the average temperature of condensed water is less than the preset condensed water temperature;
[0062] The cooling control unit determines to replace the condensed water in the auxiliary cooling circulation device according to the comparison result that the second maximum heating rate of each key component after cooling with condensed water is greater than the second preset heating rate and the average temperature of condensed water is greater than or equal to the preset condensed water temperature.
[0063] In the embodiment of the present invention, the second preset heating rate is one tenth of the first preset heating rate, and the preset condensation water temperature is five sixths of the lowest temperature of each key component for condensation, but the above values are not limited to this, and technical personnel in this field can also adjust the values according to actual needs.
[0064] The present invention adjusts the water pump power and replaces the condensed water according to actual conditions, thereby effectively avoiding unnecessary energy waste. When the cooling demand is low, the water pump power can be reduced to reduce energy consumption. When the condensed water temperature is too high, the condensed water is replaced in time to avoid the situation where the high-power water pump continues to run but cannot effectively cool the water, thereby saving energy. The condensed water is used for cooling, which realizes the reuse of resources, reduces the dependence on external cooling medium, and reduces the harm to the environment. The corresponding operation is determined according to the second maximum heating rate of the key components after condensed water cooling and the average temperature of the condensed water, so that the fine adjustment of the cooling process can be achieved. By monitoring these parameters in real time, it can be accurately judged whether the cooling effect meets the expectations, thereby Effective measures are taken in a timely manner to make adjustments. When the second maximum heating rate is greater than the second preset heating rate and the average condensate temperature is less than the preset condensate temperature, a maximum difference analysis of the heating rates of key components is performed. This helps to find out the parts with uneven cooling and adjust the distribution and flow of condensate in a targeted manner to improve the uniformity and effectiveness of cooling. When the second maximum heating rate is greater than the second preset heating rate and the average condensate temperature is greater than or equal to the preset condensate temperature, the condensate in the auxiliary cooling circulation device is replaced. This can ensure that the condensate always maintains a good cooling performance state and avoid affecting the cooling effect due to excessively high condensate temperature. The above method improves the accuracy of temperature control of key components.
[0065] Specifically, the cooling control unit determines the dynamic allocation of condensed water or the increase of water pump power according to the comparison result of the maximum difference of the heating rates of the key components and the preset difference under the condition of determining the maximum difference of the heating rates of the key components.
[0066] The cooling control unit determines the dynamic allocation of condensed water according to the comparison result that the maximum difference of the heating rates of the key components is greater than or equal to the preset difference;
[0067] The cooling control unit determines to increase the water pump power according to a comparison result that the maximum difference of the heating rates of the key components is less than a preset difference.
[0068] The preset difference in the embodiment of the present invention is four fifths of the average difference in the heating rates of the key components, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.
[0069] In the embodiment of the present invention, an adjustable valve can be installed on the condensate delivery pipeline to control the opening of the valve to achieve dynamic distribution of condensate, and the dynamically distributed condensate flow rate can be determined based on the condensate flow rate corresponding to the same key component temperature in historical data monitored in real time.
[0070] The present invention avoids unnecessary waste of condensed water by dynamically allocating condensed water. When some key components do not need excessive cooling, condensed water can be allocated to parts that need cooling more, thereby improving the utilization efficiency of condensed water and saving energy. Increasing the water pump power can provide sufficient cooling capacity when needed and avoid excessive energy consumption when not needed. By performing precise control according to actual conditions, optimal utilization of energy is achieved and the operating cost of the equipment is reduced. By analyzing the maximum difference in the heating rates of key components, the imbalance in cooling demand can be accurately identified. When the maximum difference is compared with the preset difference, it can be determined in time whether further cooling measures are needed, thereby achieving precise control of the cooling process. Dynamic allocation of condensed water or increase in water pump power is determined according to different comparison results, which can solve the cooling imbalance problem in a targeted manner. The accuracy of temperature control of each key component is improved by the above method.
[0071] Specifically, the optimization unit determines whether to optimize the cooling process parameters according to the comparison result of the maximum load variation of each qualified key component after cooling and the preset load variation range;
[0072] The optimization unit determines to optimize the cooling process parameters according to the comparison result that the maximum load variation of each qualified key component after cooling is not within the preset load variation range;
[0073] The optimization unit determines not to optimize the cooling process parameters according to the comparison result that the maximum load variation of each qualified key component after cooling is within the preset load variation range.
[0074] The cooling process parameters in the embodiment of the present invention include a condensing water flow rate and a preset condensing water temperature. The minimum value of the preset load variation range is a negative value of three tenths of the maximum load of each key component, and the maximum value of the preset load variation range is a positive value of three tenths of the maximum load of each key component. However, the above values are not limited to this, and technicians in this field can also adjust the values according to actual needs.
[0075] Specifically, the optimization unit determines to optimize the condensing water flow rate with a first optimization coefficient and to optimize the preset condensing water temperature with a second optimization coefficient under the condition of optimizing the cooling process parameters.
[0076] In the embodiment of the present invention, the optimized amount of the condensed water flow is positively correlated with the maximum load change of each key component, and the optimized amount of the preset condensed water temperature is negatively correlated with the maximum load change of each key component.
[0077] In an embodiment of the present invention, when the maximum load change of each key component is a positive value, the value range of the first optimization coefficient is 1.08-1.21, and the value range of the second optimization coefficient is 1.05-1.19. When the maximum load change of each key component is a negative value, the value range of the first optimization coefficient is 0.82-0.96, and the value range of the second optimization coefficient is 0.86-0.95.
[0078] The present invention determines whether to optimize the cooling process parameters by comparing the maximum load variation of each key component with a preset load variation range. Considering that when an electric concrete mixer truck realizes the functions of mixing, transporting and climbing, each key component will experience load variation, and the temperature of each key component will change accordingly with the load variation. By monitoring the load variation and optimizing the cooling process of each key component, it is possible to avoid the phenomenon that the temperature of each key component is greater than the maximum withstand temperature due to load variation, causing equipment damage.
[0079] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A high temperature and high humidity resistant electric concrete mixer truck condensate water reuse control system, It is characterized in that include: A condensed water collection device, which is located below the air-conditioning evaporator of the concrete mixer truck and is used to collect condensed water generated by the air-conditioning; A water storage tank, which is connected to the condensed water collecting device through a drainage pipe, comprises a water level sensor and a drain valve, and is used to store condensed water; An auxiliary cooling circulation device, which is connected to the water storage tank and includes a water pump, a condensation pipe, a plurality of heat dissipation units and a heat exchanger, and is used to circulate condensed water to cool a plurality of key components; A detection device, which is arranged at each of the key components, including a temperature sensor and a flow sensor, for detecting the temperature of the key components and the condensed water flow in real time; a controller, which is respectively connected to the condensate collection device, the water storage tank, the auxiliary cooling circulation device and the detection device, and includes a delivery control unit for determining the opening of the drain valve in the condensate delivery according to the level of the highest temperature in each of the key components and the first maximum temperature rise rate of each of the key components, a cooling control unit for determining the cooling method according to the second maximum temperature rise rate of the key components after condensate cooling and the average temperature of the condensate in the auxiliary cooling circulation device, and an optimization unit for determining whether to optimize the cooling process parameters according to the maximum load change of each qualified key component after cooling; Wherein, the cooling method includes increasing the power of the water pump, dynamically distributing condensed water, and replacing the condensed water in the auxiliary cooling circulation device.
2. According to the high temperature and high humidity resistant electric concrete mixer truck condensate water reuse control system of claim 1, It is characterized in that The transport control unit determines the opening of the drain valve in the condensate transport, including: The transport control unit determines to transport the condensed water in the water storage tank to the auxiliary cooling circulation device at the maximum opening of the drain valve under the condition that the highest temperature in each key component is at the first level; The transport control unit determines that the condensed water inside the water storage tank is transported to the auxiliary cooling circulation device according to the dynamic opening of the drain valve when the comparison result shows that the highest temperature of each key component is at the second level and the first maximum heating rate of each key component is greater than the first preset heating rate.
3. The condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to claim 2, It is characterized in that The transport control unit determines the level of the highest temperature in each key component, including determining that the level of the highest temperature is the first level according to a comparison result that the highest temperature is greater than the cooling temperature, and the first preset heating rate is determined according to the historical heating rate of the key component.
4. The condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to claim 3, It is characterized in that The cooling control unit determines the cooling method according to the second maximum temperature rise rate of the key component after cooling by condensed water and the average temperature of condensed water in the auxiliary cooling circulation device, including: The cooling control unit determines a maximum difference analysis of the heating rates of the key components according to a comparison result that the second maximum heating rate of the key components after cooling by condensed water is greater than the second preset heating rate and the average temperature of condensed water is less than the preset condensed water temperature; The cooling control unit determines to replace the condensed water in the auxiliary cooling circulation device according to the comparison result that the second maximum heating rate of each key component after cooling with condensed water is greater than the second preset heating rate and the average temperature of condensed water is greater than or equal to the preset condensed water temperature.
5. The condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to claim 4, It is characterized in that The second preset temperature rise rate is determined according to the first preset temperature rise rate, and the preset condensed water temperature is determined according to the lowest temperature of the key component for condensation.
6. The condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to claim 4, It is characterized in that The cooling control unit determines the maximum difference analysis of the heating rate of each key component, including: The cooling control unit determines the dynamic allocation of condensed water according to the comparison result that the maximum difference of the heating rates of the key components is greater than or equal to the preset difference; The cooling control unit determines to increase the water pump power according to a comparison result that the maximum difference of the heating rates of the key components is less than a preset difference.
7. The condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to claim 6, It is characterized in that The preset difference is determined according to the average difference of the heating rates of the key components.
8. The condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to claim 7, It is characterized in that The optimization unit determines that the optimization of the cooling process parameters includes: The optimization unit determines to optimize the cooling process parameters according to the fact that the maximum load variation of each qualified key component after cooling is not within the preset load variation range, wherein the cooling process parameters include the condensing water flow rate and the preset condensing water temperature.
9. The condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to claim 8, It is characterized in that The preset load variation range is determined according to the maximum load in each key component.
10. The condensate recycling control system for a high temperature and high humidity resistant electric concrete mixer truck according to claim 9, It is characterized in that The optimized amount of the condensed water flow rate is positively correlated with the maximum load variation of each key component, and the optimized amount of the preset condensed water temperature is negatively correlated with the maximum load variation of each key component.