A low-temperature automatic drainage anti-freezing system for construction machinery

Abstract

The utility model provides a kind of for engineering machinery low temperature automatic drainage anti-freezing system, it is related to engineering machinery anti-freezing field.The drainage anti-freezing system includes: anticorrosive water storage tank, is equipped with water inlet, first drain and second drain;First water delivery pipeline, including first water delivery pipe, shunt pipe and water delivery pump, one end of first water delivery pipe is communicated with first drain, other end is simultaneously connected with external water spraying structure and shunt pipe;Second water delivery pipeline, including second water delivery pipe communicated with second drain;And regulation and control component, including controller, built-in thermometer, external thermometer and liquid level sensor, built-in thermometer and liquid level sensor are located in anticorrosive water storage tank, are used for detecting water temperature and liquid level in tank respectively, external thermometer is used for detecting the ambient temperature outside anticorrosive water storage tank.The present application does not need manual intervention, solves the problem that present manual drainage operation is complicated, efficiency is low, is limited by environment and time period and drainage is not complete.

Description

Technical Field

[0001] This utility model relates to the field of antifreeze technology for engineering machinery, and more specifically, to an automatic drainage antifreeze system for low-temperature engineering machinery. Background Technology

[0002] The water storage structure of construction machinery is the core guarantee for its water-related operations. Taking water trucks as a typical example, this structure mainly consists of a high-strength, corrosion-resistant water storage tank, wear-resistant water pipelines, sealing valves, and matching interfaces. The water storage tank needs to be designed with the required volume and pressure capacity to meet operational needs, while the pipelines and valves bear the key responsibility of stable water delivery and precise control. The rationality of the overall structural design directly determines the water storage capacity, delivery efficiency, and operational safety. It not only lays a solid functional foundation for basic operations such as road sweeping, greening irrigation, and emergency dust suppression, but its performance is also directly related to the equipment's adaptability to all scenarios.

[0003] The quality and stability of the water storage structure are crucial prerequisites for engineering machinery to fully realize its operational value. For sprinkler trucks, sufficient water storage capacity reduces the frequency of water replenishment and expands the operational coverage area; smooth pipelines and reliable valve systems enable precise water spraying on demand, adapting to diverse operational scenarios. More importantly, a high-quality water storage structure reduces equipment operating losses, extends the overall service life of the machine, and reduces maintenance costs. It is not only a core support for efficient operations in municipal maintenance and environmental management, but also directly affects operational quality and overall benefits, while laying the foundation for reliable operation in complex environments.

[0004] In low-temperature environments, if the protection of the water storage structure is neglected and residual water is not drained in time, the enormous tension generated by the expansion of the water as it freezes can directly crack the water tank shell, cause the water pipeline to become brittle, jam valve components, and damage the sealing structure. This can lead to sudden equipment shutdown, soaring maintenance costs, operational delays, and even safety hazards. Currently, the mainstream method for dealing with this low-temperature risk still relies on manual drainage. This method has obvious practical shortcomings—the operation process is cumbersome, time-consuming, and labor-intensive, resulting in low efficiency. At the same time, it is difficult to complete the full drainage operation in time due to factors such as the extreme cold of the outdoor environment and the tight working hours. Its protective effect depends entirely on human experience and sense of responsibility, resulting in extremely poor stability. In fact, incomplete drainage may leave the equipment still at risk of freezing damage. It is neither suitable for the pace of efficient operation nor can it provide reliable equipment protection. Utility Model Content

[0005] The purpose of this utility model is to provide a low-temperature automatic drainage and antifreeze system for engineering machinery, which aims to solve the technical problems in the background art mentioned above.

[0006] The embodiments of this utility model are implemented as follows: This application provides a low-temperature automatic drainage and antifreeze system for engineering machinery, comprising: a corrosion-resistant water storage tank, having an inlet, a first outlet, and a second outlet; a first water supply pipeline, including a first water supply pipe, a branch pipe, and a water pump, one end of the first water supply pipe being connected to the first outlet, and the other end being connected to an external spray structure and the branch pipe, for transporting water from the corrosion-resistant water storage tank to the spray structure or the branch pipe; a second water supply pipeline, including a second water supply pipe connected to the second outlet; and a control component, including a controller, a built-in thermometer, an external thermometer, and a liquid level sensor, wherein the built-in thermometer and the liquid level sensor are disposed inside the corrosion-resistant water storage tank and are used to detect the water temperature and liquid level inside the tank, respectively, and the external thermometer is used to detect the ambient temperature outside the corrosion-resistant water storage tank.

[0007] Furthermore, based on the aforementioned scheme, an auxiliary power supply module is also included, which is used to supply power to the aforementioned water pump, the aforementioned controller, the aforementioned built-in thermometer, the aforementioned external thermometer, and the aforementioned liquid level sensor.

[0008] Furthermore, based on the aforementioned scheme, a first electric shut-off valve is provided between the first water supply pipe and the aforementioned water spray structure.

[0009] Furthermore, based on the aforementioned scheme, a second electric shut-off valve is installed on the second water supply pipe.

[0010] Furthermore, based on the aforementioned scheme, a third electric shut-off valve is installed on the diversion pipe.

[0011] Furthermore, based on the aforementioned scheme, both the first drain outlet and the second drain outlet are located at the lowest water level of the corrosion-resistant water storage tank.

[0012] Furthermore, based on the aforementioned scheme, the controller is equipped with control keys for regulating the drainage of the corrosion-resistant water storage tank.

[0013] Furthermore, based on the aforementioned scheme, the first water supply pipe and the first drain outlet are detachably connected, and the second water supply pipe and the second drain outlet are detachably connected.

[0014] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects: The low-temperature automatic drainage and antifreeze system of this application constructs a functional channel through the dual drainage outlets of the corrosion-resistant water storage tank and two water supply pipelines. The built-in thermometer, external thermometer, and liquid level sensor collect data on the water temperature inside the tank, the external ambient temperature, and the liquid level inside the tank, respectively. After receiving these detection data, the controller automatically adjusts the operating status of the first and second water supply pipelines to achieve normal water delivery or automatic discharge of residual water in the tank. Its advantages are that no manual intervention is required, which solves the problems of cumbersome, inefficient, environmental and time-limited, and incomplete drainage of existing manual drainage operations. It can accurately meet the needs of low-temperature antifreeze, avoid damage to the water storage structure due to freezing, ensure the stable operation of engineering machinery, reduce maintenance costs, and adapt to the actual needs of high-efficiency operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram illustrating the principle of a low-temperature automatic drainage and antifreeze system for engineering machinery according to an embodiment of the present invention. Figure 2 An isometric projection for a low-temperature automatic drainage and antifreeze system for engineering machinery, as described in this embodiment of the present invention. Figure 1 ; Figure 3 An isometric projection for a low-temperature automatic drainage and antifreeze system for engineering machinery, as described in this embodiment of the present invention. Figure 2 .

[0017] Icons: 1-Corrosion-resistant water storage tank, 2-Built-in thermometer, 3-Liquid level sensor, 4-External thermometer, 5-Controller, 6-Auxiliary power supply module, 7-Second electric shut-off valve, 8-Water pump, 9-First electric shut-off valve, 10-Third electric shut-off valve, 11-First water supply pipe, 12-Second water supply pipe, 13-Diverter pipe, 14-Inlet. Detailed Implementation

[0018] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Example

[0019] Please refer to Figures 1-3This application provides a low-temperature automatic drainage and antifreeze system for engineering machinery, comprising: a corrosion-resistant water storage tank 1, with an inlet 14, a first drain outlet, and a second drain outlet; a first water supply pipeline, including a first water supply pipe 11, a diversion pipe 13, and a water pump 8, one end of the first water supply pipe 11 being connected to the first drain outlet, and the other end being connected to an external spray structure and the diversion pipe 13, for transporting water from the corrosion-resistant water storage tank 1 to the spray structure or the diversion pipe 13; a second water supply pipeline, including a second water supply pipe 12 connected to the second drain outlet; and a control component, including a controller 5, a built-in thermometer 2, an external thermometer 4, and a liquid level sensor 3, wherein the built-in thermometer 2 and the liquid level sensor 3 are disposed inside the corrosion-resistant water storage tank 1, for detecting the water temperature and liquid level inside the tank, respectively, and the external thermometer 4 is used to detect the ambient temperature outside the corrosion-resistant water storage tank 1.

[0020] The low-temperature automatic drainage and antifreeze system of this application constructs a functional channel through the dual drainage outlets of the corrosion-resistant water storage tank 1 and two water supply pipelines. The built-in thermometer 2, the external thermometer 4, and the liquid level sensor 3 respectively collect the water temperature inside the tank, the external ambient temperature, and the liquid level inside the tank. After receiving these detection data, the controller 5 automatically adjusts the operating status of the first and second water supply pipelines to realize the normal transportation of water or the automatic discharge of residual water in the tank. Its advantages are that no manual intervention is required, which solves the problems of cumbersome, inefficient, environmental and time-limited, and incomplete drainage of existing manual drainage operations. It can accurately meet the needs of low-temperature antifreeze, avoid damage to the water storage structure due to freezing, ensure the stable operation of engineering machinery, reduce maintenance costs, and adapt to the actual needs of high-efficiency operation.

[0021] Understandably, the system first presets a specific drainage threshold using the liquid level sensor 3. Simultaneously, the built-in thermometer 2 and the external thermometer 4 detect the water temperature inside the corrosion-resistant storage tank 1 and the external ambient temperature, respectively. The liquid level sensor 3 collects the liquid level data in the tank in real time and feeds it back to the controller 5. The controller 5 combines the temperature detection data and the liquid level data for comprehensive judgment. When the liquid level in the tank is higher than the preset drainage threshold, the controller 5 regulates the operation of the first water supply pipeline, starting the water pump 8 to drain the water from the tank through the first water supply pipe 11 and the diversion pipe 13. When the liquid level in the tank is lower than or equal to the preset drainage threshold, the controller 5 switches to the second water supply pipeline, completely draining the remaining low-level water from the tank through the second water supply pipe 12 connected to the second drain outlet of the corrosion-resistant storage tank 1. This achieves graded drainage based on liquid level thresholds, adapting to drainage needs under different liquid level conditions.

[0022] In a preferred embodiment, an auxiliary power supply module 6 is also included, which is used to supply power to the water pump 8, the controller 5, the built-in thermometer 2, the external thermometer 4 and the liquid level sensor 3.

[0023] In the above embodiments, the auxiliary power supply module 6 provides stable power support for the water pump 8, controller 5, built-in thermometer 2, external thermometer 4, and liquid level sensor 3, ensuring that these core components are not affected by abnormalities in the main power supply system of the construction machinery and always maintain normal operation. The principle is to ensure that the liquid level sensor 3 stably collects liquid level data in the tank and that the built-in and external thermometers 4 accurately detect the temperature inside and outside the tank by continuously supplying power, so that the controller 5 can receive various detection data in real time and smoothly execute the graded drainage logic based on the preset drainage threshold. When the liquid level in the tank is higher than the threshold, drainage is carried out through the first water supply pipe 11 and the diversion pipe 13; when it is lower than or equal to the threshold, drainage is carried out through the second water supply pipe 12, ensuring that the drainage process is not interrupted. Its advantages are that it avoids the risk of power interruption caused by dependence on the main power supply, improves the operational reliability of the system under complex working conditions, ensures that the graded drainage function continues to be effective, further ensures that the residual water in the tank is completely discharged, avoids freezing damage to the water storage structure, and stably supports the operation needs of construction machinery in low-temperature environments.

[0024] In a preferred embodiment, a first electric shut-off valve 9 is provided between the first water supply pipe 11 and the water spray structure.

[0025] In the above embodiment, a first electric shut-off valve 9 is installed between the first water supply pipe 11 and the water spray structure. This valve can be linked with the system control components for control. During operation, the valve opens to ensure a stable water supply from the first water supply pipe to the water spray structure to meet operational needs. During drainage, the valve automatically closes to prevent water from flowing back into the water spray structure or causing residual water accumulation within the structure when the diversion pipe 13 is draining. Simultaneously, it ensures that the drainage pressure is concentrated on the diversion pipe 13, improving drainage efficiency. This design achieves precise isolation between water supply and drainage functions, preventing functional conflicts, and protects the water spray structure from the effects of drainage conditions, reducing component wear and tear. It further ensures the smooth execution of the system's automatic graded drainage logic, improving overall operational stability.

[0026] As a preferred embodiment, a second electric shut-off valve 7 is provided on the second water supply pipe 12.

[0027] In the above embodiment, a second electric shut-off valve 7 is installed on the second water supply pipe 12, which can achieve precise linkage control with the system control components: when the construction machinery is operating normally, the valve remains closed, which can effectively prevent water in the anti-corrosion water storage tank 1 from leaking through the second water supply pipe, ensuring the water storage capacity of the water storage tank and the stability of the water supply operation; when the system enters the low liquid level drainage condition (the liquid level in the tank is lower than or equal to the preset drainage threshold), the valve is automatically opened by the controller 5 to ensure the smooth flow of the second water supply pipe and help the low liquid level residual water to be discharged quickly and completely. This setting not only realizes the on-demand opening and closing of the second water supply pipe, avoiding water loss or backflow of impurities in non-drainage conditions, but also works with the first electric shut-off valve 9 to further optimize the isolation effect between water supply and drainage conditions, ensure the accurate implementation of the system's graded drainage logic, reduce the ineffective loss of pipelines and related components, and improve the integrity and operational reliability of the system's automated control, and more comprehensively avoid the risk of freezing damage to the water storage structure.

[0028] As a preferred embodiment, a third electric shut-off valve 10 is provided on the aforementioned diversion pipe 13.

[0029] In the above embodiment, a third electric shut-off valve 10 is provided on the diversion pipe 13, which can form a coordinated control with the system control components and the first and second electric shut-off valves 7: When the engineering machinery is operating normally with water supply, the third electric shut-off valve 10 remains closed, which can prevent water from being ineffectively lost from the diversion pipe 13, ensure that the water supply pressure is concentrated on the water spray structure, and ensure the stability and accuracy of the water supply during operation; when the system detects that the liquid level in the tank is higher than the preset drainage threshold and high liquid level drainage needs to be performed, the controller 5 will simultaneously control the first electric shut-off valve 9 to close and the third electric shut-off valve 10 to open, so that the diversion pipe 13 becomes a dedicated channel for high liquid level drainage, ensuring a clear drainage path and concentrated pressure, and improving the efficiency of high liquid level drainage. This setup enables the on-demand switching of the high-level drainage channel, avoiding mutual interference between water supply and high-level drainage conditions. It also prevents impurities from entering the diversion pipe 13 or the first water supply pipeline during non-drainage periods, reducing pipeline blockage and component wear. Furthermore, it improves the control logic of the system's automated graded drainage, enhances the overall accuracy and reliability of operation, and more comprehensively ensures the antifreeze effect of the water storage structure in low-temperature environments.

[0030] In a preferred embodiment, both the first drain outlet and the second drain outlet are located at the lowest water level of the corrosion-resistant water storage tank 1.

[0031] In the above embodiment, both the first and second drain outlets are located at the lowest water level of the corrosion-resistant water storage tank 1. This allows for natural water collection by gravity, providing a structural basis for tiered drainage: during high-level drainage, the lowest-positioned first drain outlet can quickly drain a large amount of water from the tank, reducing drainage time; during low-level drainage, the lowest-positioned second drain outlet can precisely connect to the residual water at the bottom of the tank, preventing some accumulated water from failing to drain due to the outlet's high position. This design ensures thorough drainage under both high and low-level conditions, reducing the risk of water freezing inside the tank, and, in conjunction with the coordinated control of the two water supply pipelines and the electric shut-off valve, makes the drainage path smoother and the pressure more stable. Simultaneously, it does not affect the normal water storage and supply functions of the water storage tank, further improving the reliability and practicality of the system's low-temperature antifreeze function.

[0032] In a preferred embodiment, the controller 5 is equipped with control keys for regulating the drainage of the corrosion-resistant water storage tank 1.

[0033] In the above embodiment, the control key matched to the controller 5 provides a manual adjustment channel for the drainage of the corrosion-resistant water storage tank 1, complementing the system's automatic graded drainage function: when encountering special circumstances such as temporary sensor failure or sudden extreme low temperatures, the drainage operation can be directly started or stopped via the control key, avoiding the risk of water accumulation and freezing damage caused by automatic control failure; if the water body needs to be emptied immediately after the operation is completed, it can also be quickly achieved through manual operation without waiting for the system to automatically detect and trigger, improving operational flexibility. This setting retains the convenience of automated drainage while making up for the limitations of purely automatic control in special scenarios, enhancing the autonomy and reliability of system operation, making drainage regulation more in line with actual operational needs, and further ensuring the low-temperature protection effect of the water storage structure.

[0034] In a preferred embodiment, the first water supply pipe 11 is detachably connected to the first drain outlet, and the second water supply pipe 12 is detachably connected to the second drain outlet.

[0035] In the above embodiments, the first water supply pipe 11 and the first drain outlet, and the second water supply pipe 12 and the second drain outlet are detachably connected. The core advantage is that it greatly improves the maintenance and adaptation flexibility of the system: when the water supply pipe is blocked, damaged or aged, the corresponding pipe can be directly disassembled for cleaning, repair or replacement, without the need for complex disassembly of the anti-corrosion water storage tank 1, reducing maintenance difficulty and cost; at the same time, different specifications of water supply pipes can be easily replaced according to actual operation needs to adapt to various working conditions; in addition, the detachable design also facilitates the separate inspection and maintenance of the drain outlet, avoiding the inconvenience of maintenance caused by the fixed connection between the pipe and the drain outlet, further ensuring the long-term stable operation of the system and extending the overall service life.

[0036] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0037] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A low-temperature automatic drainage and antifreeze system for engineering machinery, characterized in that, include: The corrosion-resistant water storage tank (1) is equipped with an inlet (14), a first outlet and a second outlet; The first water supply pipeline includes a first water supply pipe (11), a branch pipe (13) and a water pump (8). One end of the first water supply pipe (11) is connected to the first drain outlet, and the other end is connected to an external spray structure and the branch pipe (13) at the same time, for transporting water in the anti-corrosion water storage tank (1) to the spray structure or the branch pipe (13). The second water supply pipeline includes a second water supply pipe (12) connected to the second drain outlet; as well as The control components include a controller (5), a built-in thermometer (2), an external thermometer (4), and a liquid level sensor (3). The built-in thermometer (2) and the liquid level sensor (3) are located inside the anti-corrosion water storage tank (1) and are used to detect the water temperature and liquid level inside the tank, respectively. The external thermometer (4) is used to detect the ambient temperature outside the anti-corrosion water storage tank (1).

2. The low-temperature automatic drainage and antifreeze system for engineering machinery according to claim 1, characterized in that, It also includes an auxiliary power supply module (6) for supplying power to the water pump (8), the controller (5), the built-in thermometer (2), the external thermometer (4) and the liquid level sensor (3).

3. The low-temperature automatic drainage and antifreeze system for engineering machinery according to claim 1, characterized in that, A first electric shut-off valve (9) is provided between the first water supply pipe (11) and the water spray structure.

4. A low-temperature automatic drainage and antifreeze system for engineering machinery according to claim 3, characterized in that, A second electric shut-off valve (7) is installed on the second water supply pipe (12).

5. A low-temperature automatic drainage and antifreeze system for engineering machinery according to claim 4, characterized in that, A third electric shut-off valve (10) is provided on the diversion pipe (13).

6. A low-temperature automatic drainage and antifreeze system for engineering machinery according to claim 1, characterized in that, Both the first drain outlet and the second drain outlet are located at the lowest water level of the corrosion-resistant water storage tank (1).

7. A low-temperature automatic drainage and antifreeze system for engineering machinery according to claim 1, characterized in that, The controller (5) is equipped with control keys for regulating the drainage of the corrosion-resistant water storage tank (1).

8. A low-temperature automatic drainage and antifreeze system for engineering machinery according to claim 1, characterized in that, The first water supply pipe (11) is detachably connected to the first drain outlet, and the second water supply pipe (12) is detachably connected to the second drain outlet.

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