A modular heat exchange system for preventing ice formation on the air pump outlet pipe of an electric loader

Abstract

This utility model discloses a modular heat exchange system for preventing icing in the air pump outlet pipe of an electric loader, belonging to the field of electric loader antifreeze technology. The system includes a vehicle body section, within which a heat exchange module, a condensation drying module, a control module, and connecting pipes are installed. This utility model uses real-time feedback from ambient temperature sensors and air outlet pipe temperature sensors, and an electronic control unit dynamically adjusts the opening of the electromagnetic bypass valve to precisely control the flow rate of high-temperature gas within the heat exchange chamber. In low-temperature environments, it effectively prevents icing in the air pump outlet pipe, ensuring unobstructed airflow. Compared to traditional passive heat exchange, it improves temperature control accuracy, adapts to different ambient temperatures, and ensures stable response of the air control system.

Description

Technical Field

[0001] This utility model relates to the field of antifreeze technology for electric loaders, and in particular to a modular heat exchange system for preventing ice from forming on the air outlet pipe of an electric loader air pump. Background Technology

[0002] During the operation of electric loaders, the anti-icing and gas drying treatment of the air pump outlet pipe is a critical factor affecting system stability and performance. Currently, electric loader air pump outlet pipes face the problem of icing in low-temperature environments, and traditional solutions lack precise and intelligent coordinated control of heat exchange and condensation drying.

[0003] On the one hand, in low-temperature environments (such as winter construction scenarios), the water vapor in the air discharged from the air pump easily condenses into ice in the air outlet pipe, clogging the pipe and causing poor air supply. This affects the functions of the loader's braking, lifting, and other pneumatic control systems, reducing operational reliability and safety. Existing heat exchange methods mostly rely on simple heat conduction structures without dynamically adjusting to ambient and pipe temperatures, resulting in insufficient or excessive heating, low heat utilization efficiency, and inability to adapt to complex working conditions.

[0004] On the other hand, the gas condensation and drying process is crude, lacking precise sensing and control of humidity and gas pressure, and the residual condensate can easily exacerbate pipeline corrosion, reduce the quality of gas cylinder filling, and shorten the service life of gas circuit components. At the same time, the heat exchange and condensation drying modules are not modularized, making later maintenance and replacement difficult and increasing operation and maintenance costs and time. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a modular heat exchange system for preventing ice in the air outlet pipe of an electric loader air pump.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A modular heat exchange system for anti-icing of the air outlet pipe of an electric loader air pump includes a vehicle body, wherein a heat exchange module, a condensation drying module, a control module and connecting pipes are provided in the vehicle body;

[0008] The heat exchange module includes a heat exchange chamber and an electromagnetic bypass valve. The heat exchange chamber is wrapped around the air pump outlet pipe. The electromagnetic bypass valve is installed on the pipeline between the high-temperature exhaust pipe and the heat exchange chamber to control the flow rate of high-temperature gas entering the heat exchange chamber.

[0009] The condensation and drying module includes a spiral condenser tube, a drying tank, and an automatic drain valve. The input end of the spiral condenser tube is connected to the output end of the air outlet of the air pump, the output end of the spiral condenser tube is connected to the input end of the drying tank, and the output end of the drying tank is connected to the automatic drain valve.

[0010] The control module includes an electronic control unit, an ambient temperature sensor, an exhaust pipe temperature sensor, and a pressure sensor. The ambient temperature sensor is located on the outside of the electric loader body and is used to detect the ambient temperature. The exhaust pipe temperature sensor is located at the outlet of the heat exchange chamber and is used to detect the temperature of the exhaust pipe. The pressure sensor is located at the outlet of the drying tank and is used to monitor the cylinder pressure. The electronic control unit is electrically connected to the ambient temperature sensor, the exhaust pipe temperature sensor, the pressure sensor, the electromagnetic bypass valve, and the automatic drain valve, and is used to control the working status of the electromagnetic bypass valve and the automatic drain valve based on the detection data of each sensor.

[0011] The connecting pipes are used to connect the heat exchange module, the condensation drying module, and the air outlet pipe and high-temperature exhaust pipe of the air pump.

[0012] Preferably, the heat exchange cavity is covered with an insulation layer.

[0013] Preferably, the electromagnetic bypass valve is a one-way electromagnetic valve.

[0014] Preferably, the condensation drying module further includes a humidity sensor, which is disposed at the end of the spiral condenser tube and is electrically connected to the electronic control unit.

[0015] Furthermore, a drain valve motor is connected to the automatic drain valve, and the drain valve motor is electrically connected to the electronic control unit to control the opening and closing of the automatic drain valve.

[0016] Compared with the prior art, this utility model provides a modular heat exchange system for preventing ice formation on the air pump outlet pipe of an electric loader, which has the following beneficial effects:

[0017] 1. This utility model uses real-time feedback from ambient temperature sensors and outlet pipe temperature sensors, and the electronic control unit dynamically adjusts the opening of the electromagnetic bypass valve to precisely control the flow rate of high-temperature gas in the heat exchange chamber. In low-temperature environments, it can effectively prevent the air pump outlet pipe from freezing, ensuring smooth airflow. Compared with traditional passive heat exchange, it improves temperature control accuracy, adapts to different ambient temperatures, and ensures stable response of the gas control system.

[0018] 2. This utility model achieves deep condensation drying and intelligent drainage of gas through the coordinated use of a spiral condenser, a drying tank, and an automatic drain valve, combined with data from humidity and pressure sensors. This significantly reduces the water content of the gas, minimizes corrosion of pipelines and gas cylinders by condensate, improves gas supply quality, and extends the service life of gas circuit components. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a modular heat exchange system for preventing ice in the air outlet pipe of an electric loader air pump, as proposed in this utility model.

[0020] Figure 2 The flowchart of the modular heat exchange system for anti-icing of the air outlet pipe of an electric loader air pump proposed in this utility model is shown.

[0021] In the diagram: 1. Body section; 101. Ambient temperature sensor; 102. Electronic control unit; 103. Air circuit section; 104. Air pump; 105. Dryer; 106. Automatic drain valve; 107. Engine; 1071. High-temperature exhaust pipe; 108. Electromagnetic bypass valve; 109. Heat exchange chamber; 110. Exhaust pipe temperature sensor; 2. Drain port; 3. Air pressure sensor; 4. Spiral condenser tube; 5. Humidity sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1:

[0024] Reference Figure 1 A modular heat exchange system for anti-icing of the air pump outlet pipe of an electric loader includes a vehicle body 1, in which a heat exchange module, a condensation drying module, a control module and connecting pipes are provided;

[0025] The heat exchange module includes a heat exchange chamber 109 and an electromagnetic bypass valve 108. The heat exchange chamber 109 is wrapped around the air outlet pipe of the air pump 104. The electromagnetic bypass valve 108 is installed on the pipeline between the high-temperature exhaust pipe 1071 and the heat exchange chamber 109 to control the flow rate of high-temperature gas entering the heat exchange chamber 109.

[0026] The condensation drying module includes a spiral condenser 4, a drying tank 105, and an automatic drain valve 106. The input end of the spiral condenser 4 is connected to the output end of the air outlet pipe of the air pump 104, the output end of the spiral condenser 4 is connected to the input end of the drying tank 105, and the output end of the drying tank 105 is connected to the automatic drain valve 106.

[0027] The control module includes an electronic control unit 102, an ambient temperature sensor 101, an exhaust pipe temperature sensor 110, and a pressure sensor 3. The ambient temperature sensor 101 is located on the outside of the electric loader body 1 and is used to detect the ambient temperature. The exhaust pipe temperature sensor 110 is located at the outlet of the heat exchange chamber 109 and is used to detect the temperature of the exhaust pipe. The pressure sensor 3 is located at the outlet of the drying tank 105 and is used to monitor the cylinder pressure. The electronic control unit 102 is electrically connected to the ambient temperature sensor 101, the exhaust pipe temperature sensor 110, the pressure sensor 3, the electromagnetic bypass valve 108, and the automatic drain valve 106, respectively, and is used to control the working state of the electromagnetic bypass valve 108 and the automatic drain valve 106 according to the detection data of each sensor.

[0028] The connecting pipes are used to connect the heat exchange module, the condensation drying module, the air outlet pipe of the air pump 104, and the high-temperature exhaust pipe 1071.

[0029] Reference Figure 1 The vehicle body 1 also has an engine 107 and an air passage 103 fixedly connected to it. The exhaust end of the engine 107 is connected to the high-temperature exhaust pipe 1071; the output end of the air passage 103 is connected to the air pump 104.

[0030] The heat exchange chamber 109 is wrapped with an insulation layer, which is made of aluminum silicate fiber material in the specific implementation.

[0031] In practical implementation, the electromagnetic bypass valve 108 is a one-way electromagnetic valve.

[0032] The condensation drying module also includes a humidity sensor 5, which is located at the end of the spiral condenser tube 4 and is electrically connected to the electronic control unit 102.

[0033] An automatic drain valve 106 is connected to a drain valve motor, which is electrically connected to an electronic control unit 102 to control the opening and closing of the automatic drain valve 106.

[0034] Reference Figure 1 The automatic drain valve 106 is provided with a drain port 2, which is used to drain the condensate after the automatic drain valve 106 is opened.

[0035] Reference Figure 2 When the system is in use, the electric loader is powered on and the system starts up along with the vehicle's electrical system. The electronic control unit 102 completes initialization and wakes up all sensors, including the ambient temperature sensor 101, the exhaust pipe temperature sensor 110, the air pressure sensor 3, and the humidity sensor 5, and enters the data acquisition standby state.

[0036] The electronic control unit 102 cyclically reads data from the ambient temperature sensor 101, the air outlet temperature sensor 110, the air pressure sensor 3, and the humidity sensor 5 as the basis for triggering the control logic.

[0037] When the ambient temperature is greater than 0℃, the engine 107 is not started. At this time, there is no need for high-temperature exhaust. When the gas cylinder pressure reaches the set value, the electronic control unit 102 determines that it is in the default state, controls the electromagnetic bypass valve 108 to close, and keeps the automatic drain valve 106 closed. The system is in low-power standby mode and only maintains sensor data acquisition.

[0038] When the ambient temperature is less than or equal to 0°C and the engine 107 is started, the electronic control unit 102 determines that the heating mode needs to be activated to prevent the exhaust pipe from freezing.

[0039] In practice, the electronic control unit 102 controls the electromagnetic bypass valve 108 to open and dynamically adjusts the valve opening based on the ambient temperature fed back by the exhaust pipe temperature sensor 110. If the ambient temperature is too low, the valve opening is increased to allow more high-temperature gas from the high-temperature exhaust pipe 1071 on the engine 107 to enter the heat exchange chamber 109, which heats the exhaust pipe of the air pump 104. If the ambient temperature is close to the target temperature, the opening is reduced to maintain thermal balance and avoid overheating.

[0040] When the engine 107 stops or the gas cylinder pressure is less than the set value, the electronic control unit 102 determines to start the drying mode, focusing on treating the condensate in the pipeline.

[0041] In practice, the electronic control unit 102 controls the electromagnetic bypass valve 108 to close, and the gas output by the air pump 104 is initially cooled and condensed by the spiral condenser tube 4 before entering the drying tank 105 for deep drying. Simultaneously, based on data from the humidity sensor 5 and the air pressure sensor 3, the electronic control unit 102 controls the drain valve motor to drive the automatic drain valve 106: when condensate accumulates in the drying tank 105, the automatic drain valve 106 opens periodically, discharging the condensate through the drain port 2; after drainage is complete, it automatically closes to maintain the air circuit's seal.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electric loader air pump air outlet pipe anti-icing modular heat exchange system, comprising a vehicle body part (1), characterized in that, The vehicle body (1) is equipped with a heat exchange module, a condensation drying module, a control module and connecting pipes; The heat exchange module includes a heat exchange chamber (109) and an electromagnetic bypass valve (108). The heat exchange chamber (109) is wrapped around the air outlet pipe of the air pump (104). The electromagnetic bypass valve (108) is installed on the pipeline between the high-temperature exhaust pipe (1071) and the heat exchange chamber (109) to control the flow rate of high-temperature gas entering the heat exchange chamber (109). The condensation and drying module includes a spiral condenser tube (4), a drying tank (105), and an automatic drain valve (106). The input end of the spiral condenser tube (4) is connected to the output end of the air outlet of the air pump (104), the output end of the spiral condenser tube (4) is connected to the input end of the drying tank (105), and the output end of the drying tank (105) is connected to the automatic drain valve (106). The control module includes an electronic control unit (102), an ambient temperature sensor (101), an exhaust pipe temperature sensor (110), and a pressure sensor (3). The ambient temperature sensor (101) is located on the outside of the electric loader body (1) and is used to detect the ambient temperature. The exhaust pipe temperature sensor (110) is located at the outlet of the heat exchange chamber (109) and is used to detect the temperature of the exhaust pipe. The pressure sensor (3) is located at the outlet of the drying tank (105) and is used to monitor the pressure of the gas cylinder. The electronic control unit (102) is electrically connected to the ambient temperature sensor (101), the exhaust pipe temperature sensor (110), the pressure sensor (3), the electromagnetic bypass valve (108), and the automatic drain valve (106) respectively, and is used to control the working state of the electromagnetic bypass valve (108) and the automatic drain valve (106) according to the detection data of each sensor. The connecting pipe is used to connect the heat exchange module, the condensation drying module and the air outlet pipe and high-temperature exhaust pipe (1071) of the air pump (104).

2. An electric loader air pump air outlet pipe anti-icing modular heat exchange system according to claim 1, characterized in that, The heat exchange cavity (109) is wrapped with an insulation layer.

3. An electrically powered loader air pump air outlet tube anti-icing modular heat exchange system according to claim 1, wherein, The electromagnetic bypass valve (108) is a one-way electromagnetic valve.

4. An electrically powered loader air pump air outlet tube anti-icing modular heat exchange system according to claim 1, wherein, The condensation drying module also includes a humidity sensor (5), which is located at the end of the spiral condenser tube (4) and is electrically connected to the electronic control unit (102).

5. An electrically powered loader air pump air outlet tube anti-icing modular heat exchange system according to claim 3, wherein, The automatic drain valve (106) is connected to a drain valve motor, which is electrically connected to the electronic control unit (102) for controlling the opening and closing of the automatic drain valve (106).

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