Photovoltaic pile driver exhaust heating system and heating method thereof

Abstract

According to the system, high-temperature waste gas exhausted by an engine of the photovoltaic pile driver is captured, heat energy in the waste gas is transmitted to circulating water through a heat exchanger, the heated circulating water is conveyed to a water tank through a pipeline system, and hot water is provided for the photovoltaic pile driver; the system comprises a waste gas collecting device, a heat exchanger, a pipeline system and a control system, and the control system automatically adjusts the waste gas flow or the heating efficiency of the heat exchanger according to real-time monitoring data of the water temperature in the water tank so as to maintain the water temperature in the water tank within a preset range; the system is simple in structure and easy to install and maintain, extra energy consumption is not needed, and the dual goals of energy conservation, emission reduction and economical efficiency are achieved. And meanwhile, the stability and reliability of the system are improved through an intelligent control system, and normal operation of the photovoltaic pile driver in cold environments such as winter is ensured. The device is suitable for various engineering machines needing construction in winter and has wide application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of construction machinery, and specifically to an exhaust gas heating system and its heating method designed for photovoltaic pile drivers and machinery that require winter construction (such as excavators and self-mixing concrete trucks). The aim is to effectively utilize the waste heat generated by the operation of the machinery to provide heating for the water tank of the machinery, ensuring that the machinery can be normally filled with water and used in cold seasons. Background Art

[0002] In the winter construction environment, many construction machinery, especially photovoltaic pile drivers, excavators, self-mixing concrete trucks, etc., are prone to freezing of the water in the water tank due to low temperatures, affecting the normal operation and working efficiency of the machinery. Traditional methods mostly use external heat sources for heating or use antifreeze instead, but these methods either have high energy consumption or high costs, which is not conducive to energy conservation, emission reduction, and economy. Therefore, it is particularly important to develop an efficient and energy-saving heating system. Summary of the Invention

[0003] The purpose of the present invention is to provide a photovoltaic pile driver exhaust gas heating system and its heating method. This system collects and utilizes the heat energy in the exhaust gas emitted by the mechanical engine, and transfers this heat energy to the water tank through a pipeline system to achieve heating of the water in the water tank, thereby avoiding the problem of freezing in winter and ensuring the normal operation of the machinery.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A photovoltaic pile driver exhaust gas heating system, comprising:

[0006] An exhaust gas collection device, which is arranged at the exhaust port of the engine of the photovoltaic pile driver and is used to capture the high-temperature exhaust gas emitted during the operation of the engine;

[0007] A heat exchanger, which is connected to the exhaust gas collection device, receives and guides the exhaust gas through its interior, and is also provided with a circulating water channel, so that the circulating water exchanges heat with the exhaust gas in the heat exchanger, thereby heating the circulating water;

[0008] A pipeline system, including an inlet pipeline and an outlet pipeline. The inlet pipeline is connected to the circulating water outlet of the heat exchanger and is used to transport the heated circulating water to the water tank of the photovoltaic pile driver; the outlet pipeline is connected to the circulating water inlet of the heat exchanger to form a closed-loop cycle to continuously heat and maintain the water temperature in the water tank;

[0009] A control system, which automatically adjusts the flow rate of the exhaust gas entering the heat exchanger or adjusts the heating efficiency of the heat exchanger according to the real-time monitoring data of the water temperature in the water tank to maintain the water temperature in the water tank within a preset range.

[0010] Furthermore, it further includes:

[0011] A temperature sensor is installed inside the water tank to monitor the water temperature inside the water tank in real time and feed back the data to the control system;

[0012] A flow control valve is installed on the pipeline between the exhaust gas collection device and the heat exchanger, and its opening degree is controlled by the control system to adjust the exhaust gas flow rate entering the heat exchanger.

[0013] Furthermore, the heat exchanger adopts an efficient finned or spiral heat exchange structure to improve the heat exchange efficiency.

[0014] Furthermore, the pipeline system is also provided with a heat insulation layer to reduce the heat loss of the circulating water during transportation.

[0015] A heating method for the exhaust gas heating system of a photovoltaic pile driver includes the following steps:

[0016] a) Start the photovoltaic pile driver, and the engine starts to run and emit exhaust gas;

[0017] b) The exhaust gas collection device captures the exhaust gas and guides it into the heat exchanger;

[0018] c) The circulating water exchanges heat with the exhaust gas in the heat exchanger, and the heated circulating water is transported to the water tank through the pipeline system;

[0019] d) The control system automatically adjusts the exhaust gas flow rate or the heating efficiency of the heat exchanger according to the real-time monitoring data of the water temperature in the water tank;

[0020] e) The heated circulating water maintains the water temperature in the water tank for use by the photovoltaic pile driver;

[0021] f) The circulating water returns to the heat exchanger through the outlet pipeline and continues to circulate and heat.

[0022] Furthermore, in step d), the control system controls the exhaust gas flow rate entering the heat exchanger by adjusting the opening degree of the flow control valve, thereby adjusting the heating efficiency.

[0023] The exhaust gas heating system and its heating method of the photovoltaic pile driver of the present invention have the following beneficial effects:

[0024] 1. Energy conservation and emission reduction: Directly utilize the waste heat energy of the exhaust gas, reduce the dependence on external energy, and reduce energy consumption and carbon emissions;

[0025] 2. Improve efficiency: Ensure that the machine can be normally filled with water and used in winter, avoid shutdown caused by the freezing of the water tank, and improve the construction efficiency;

[0026] 3. Economical and practical: The system has a low cost, is easy to maintain, and has significant economic benefits in long-term operation. Description of the Drawings

[0027] Figure 1 Schematic diagram of the system architecture of the exhaust gas heating system for a photovoltaic pile driver in the present invention;

[0028] Figure 2 Schematic diagram of the implementation process of the exhaust gas heating method for a photovoltaic pile driver in the present invention. Specific implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0030] In the description of the embodiments of the present invention, "a plurality of" represents at least two.

[0031] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected", "connected" are used, they 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0032] Embodiment:

[0033] I. System composition and structure

[0034] The present invention provides an exhaust gas heating system for a photovoltaic pile driver and its heating method. The system mainly includes an exhaust gas collection device, a heat exchanger, a pipeline system, a control system, and necessary auxiliary components.

[0035] Exhaust gas collection device: This device is installed at the exhaust port of the engine of the photovoltaic pile driver. Its main function is to capture the high-temperature exhaust gas emitted during the operation of the engine. The exhaust gas collection device is designed with heat-resistant and corrosion-resistant materials to ensure long-term stable operation. It is internally provided with a diversion structure to optimize the flow path of the exhaust gas and improve the exhaust gas collection efficiency.

[0036] Heat exchanger: The heat exchanger is connected to the exhaust gas collection device, receives and guides the exhaust gas through its interior. The heat exchanger is internally provided with a circulating water channel and an exhaust gas channel, and heat exchange is achieved between the two through a heat exchange wall surface. The circulating water channel is filled with a high-efficiency heat transfer medium to improve the heat exchange efficiency. The heat exchanger adopts a high-efficiency heat exchange structure such as a fin type or a spiral type to maximize the heat exchange area between the exhaust gas and the circulating water.

[0037] Pipeline system: The pipeline system includes an inlet pipeline, an outlet pipeline, and a circulation pipeline; the inlet pipeline is connected to the circulating water outlet of the heat exchanger for transporting the heated circulating water to the water tank of the photovoltaic pile driver, and the outlet pipeline is connected to the circulating water inlet of the heat exchanger to form a closed-loop circulation. A heat preservation layer is provided inside the circulation pipeline to reduce heat loss during the transportation of the circulating water; the pipeline system is made of corrosion-resistant and high-temperature-resistant materials to ensure long-term stable operation.

[0038] Control system: The control system includes a temperature sensor, a flow control valve, and a control unit; the temperature sensor is set inside the water tank for real-time monitoring of the water temperature in the water tank and feeding the data back to the control unit; the control unit automatically adjusts the opening degree of the flow control valve according to the water temperature data to adjust the exhaust gas flow rate entering the heat exchanger, thereby controlling the heating efficiency.

[0039] II. Working principle

[0040] When the photovoltaic pile driver starts, the engine starts to run and emit exhaust gas; the exhaust gas collection device captures the exhaust gas and guides it into the heat exchanger, where the exhaust gas exchanges heat with the circulating water, and the circulating water is heated; the heated circulating water is transported to the water tank through the pipeline system to provide hot water for the photovoltaic pile driver; the control system automatically adjusts the exhaust gas flow rate or the heating efficiency of the heat exchanger according to the real-time monitored data of the water temperature in the water tank to maintain the water temperature in the water tank within the preset range; when the water temperature reaches the preset value, the control system automatically reduces the exhaust gas flow rate or lowers the heating efficiency; when the water temperature is lower than the preset value, the exhaust gas flow rate is increased or the heating efficiency is improved.

[0041] III. Specific implementation steps

[0042] Installation of the system: Install the exhaust gas collection device at the exhaust port of the engine of the photovoltaic pile driver, and connect and install the heat exchanger, pipeline system, and control system according to the design requirements.

[0043] Start the system: Start the photovoltaic pile driver, the engine starts to run and emit exhaust gas, and at the same time, start the control system and turn on the circulating water pump to make the circulating water exchange heat with the exhaust gas in the heat exchanger.

[0044] Monitor the water temperature: The temperature sensor monitors the water temperature in the water tank in real time and feeds the data back to the control system.

[0045] Adjust the heating efficiency: The control system automatically adjusts the opening degree of the flow control valve according to the water temperature data to adjust the exhaust gas flow rate entering the heat exchanger, thereby controlling the heating efficiency.

[0046] Maintain the water temperature: Through the automatic adjustment of the control system, the heated circulating water maintains the water temperature within the preset range in the water tank for the use of the photovoltaic pile driver.

[0047] Circular operation: The circulating water returns to the heat exchanger through the outlet pipe and continues to circulate for heating, forming a closed-loop system.

[0048] IV. Implementation effects

[0049] The exhaust gas heating system and its heating method for the photovoltaic pile driver provided by the present invention utilize the heat of the exhaust gas generated by mechanical operation to heat the mechanical water tank, avoiding the problem of water tank freezing in winter; the system has a simple structure, is easy to install and maintain, and does not require additional energy consumption, achieving the dual goals of energy conservation, emission reduction and economy. At the same time, the control system realizes intelligent adjustment, automatically adjusts the heating intensity according to actual needs, and improves the stability and reliability of the system.

[0050] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative work without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A photovoltaic pile driver exhaust heating system, characterized in that: include: An exhaust gas collection device is installed at the engine exhaust port of the photovoltaic pile driver to capture high-temperature exhaust gas emitted during the operation of the engine; A heat exchanger is connected to the exhaust gas collecting device, receives and guides the exhaust gas through the inside thereof, and is provided with a circulating water channel so that the circulating water exchanges heat with the exhaust gas in the heat exchanger, thereby heating the circulating water; The pipeline system includes a water inlet pipeline and a water outlet pipeline, wherein the water inlet pipeline is connected to the circulating water outlet of the heat exchanger to transport the heated circulating water to the water tank of the photovoltaic pile driver; the water outlet pipeline is connected to the circulating water inlet of the heat exchanger to form a closed loop circulation to continuously heat and maintain the water temperature in the water tank; The control system automatically adjusts the flow of exhaust gas entering the heat exchanger or the heating efficiency of the heat exchanger according to the real-time monitoring data of the water temperature in the water tank, so as to maintain the water temperature in the water tank within a preset range.

2. The photovoltaic pile driver exhaust heating system according to claim 1, characterized in that: Also includes: The temperature sensor is installed in the water tank to monitor the water temperature in the water tank in real time and feed the data back to the control system; The flow control valve is installed on the pipeline between the exhaust gas collection device and the heat exchanger, and its opening is controlled by the control system to adjust the exhaust gas flow entering the heat exchanger.

3. The photovoltaic pile driver exhaust heating system according to claim 2, characterized in that: The heat exchanger adopts a high-efficiency fin-type or spiral heat exchange structure to improve the heat exchange efficiency.

4. The photovoltaic pile driver exhaust heating system according to claim 1, characterized in that: The pipeline system is also provided with a heat-insulating layer to reduce heat loss of the circulating water during transportation.

5. A heating method using the photovoltaic pile driver exhaust heating system according to any one of claims 1 to 4, characterized in that: The following steps are involved: a) Start the photovoltaic pile driver, the engine starts running and exhaust gas is discharged; b) an exhaust gas collection device captures the exhaust gas and directs it into a heat exchanger; c) The circulating water exchanges heat with the exhaust gas in the heat exchanger, and the heated circulating water is transported to the water tank through the pipeline system; d) The control system automatically adjusts the exhaust gas flow rate or the heating efficiency of the heat exchanger based on the real-time monitoring data of the water temperature in the water tank; e) The heated circulating water is kept at a constant temperature in the water tank for use by the photovoltaic pile driver; f) The circulating water returns to the heat exchanger through the outlet pipe and continues to circulate and heat.

6. The heating method according to claim 5, characterized in that: In step d), the control system controls the flow of exhaust gas entering the heat exchanger by adjusting the opening of the flow control valve, thereby adjusting the heating efficiency.

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