A directional spraying device for de-icing fluid on contact wires

Abstract

This utility model discloses a directional spraying device for de-icing fluid on contact wires, including a bracket. A contact wire detection plate is mounted on the top of the bracket, and a proximity sensor is fixed to the bottom surface of each detection plate. A de-icing fluid distributor is mounted on the lower side of the bracket, and a shut-off valve is mounted on the side of the distributor. Each shut-off valve is equipped with a de-icing fluid nozzle. This utility model can reduce de-icing fluid waste, improve de-icing efficiency and quality, and lower de-icing costs.

Description

Technical Field

[0001] This utility model relates to the field of contact wire de-icing technology, and more specifically, to a directional spraying device for contact wire de-icing fluid. Background Technology

[0002] In modern transportation and energy transmission, the normal operation of overhead contact lines is crucial. Taking the railway system as an example, the overhead contact line, as a key component supplying power to trains, is highly susceptible to icing under harsh weather conditions such as low temperatures, rain, and snow in winter. The formation of ice not only affects the proper contact between the contact line and the pantograph, leading to unstable power transmission and problems such as power outages, short circuits, and sparking, seriously impacting railway operating efficiency and safety, but also can cause additional stress on the contact line and its supporting structure due to the increased weight of the ice, potentially triggering line faults. Similarly, in some power transmission lines, icing of the contact line can also negatively impact the stability of the power supply.

[0003] To address the issue of ice buildup on overhead contact lines, existing de-icing methods mainly include manual de-icing, mechanical de-icing vehicles, and chemical de-icing. However, each technology has its limitations. Manual de-icing relies on maintenance personnel using simple tools such as hammers and mallets. This method is heavily dependent on manual labor, resulting in extremely low de-icing efficiency. Furthermore, the force applied by personnel is difficult to control precisely, easily damaging the overhead contact lines or related equipment and affecting their lifespan. While mechanical de-icing vehicles improve efficiency to some extent, their large size limits their flexibility in complex line environments, and their de-icing effect is poor in special areas such as bends and tunnel entrances. Chemical de-icing, which melts the ice layer by spraying de-icing fluid, is a commonly used method, but existing spraying technologies have significant drawbacks.

[0004] Existing chemical de-icing spraying devices mostly suffer from uneven spraying and difficulty in achieving precise directional spraying. In real-world scenarios, the distribution of contact wires is complex, and the icing conditions vary significantly in different areas. Non-directional spraying not only wastes a large amount of de-icing fluid and increases operating costs, but also may cause unnecessary impacts on the surrounding environment or equipment when spraying in areas where de-icing is not needed. More importantly, existing de-icing fluid spraying devices typically use fixed nozzle positions, which cannot be adjusted according to the actual position of the contact wire. Since the contact wire has a specified pull-out value during installation (the pull-out value refers to the lateral offset distance of the contact wire relative to the pantograph centerline at each suspension point or positioning point of the contact wire), generally ±200 mm to ±300 mm (alternating left and right), a fixed nozzle makes it difficult to consistently align with the contact wire, further exacerbating the problem of uneven spraying. At the same time, this fixed mode makes the device extremely unadaptable. When dealing with contact wires of different specifications and in different laying environments, complex manual adjustments or equipment replacements are often required, severely impacting the flexibility and efficiency of de-icing operations. Furthermore, these devices generally lack real-time detection and feedback mechanisms, making it impossible to perceive changes in the position of the contact wire and the spraying effect of the de-icing fluid in real time. Operators find it difficult to adjust the spraying parameters in a timely manner according to the actual situation, which may result in insufficient de-icing fluid in some areas and incomplete de-icing in other areas, while excessive de-icing fluid is wasted in other areas, which greatly affects the accuracy and economy of de-icing operations.

[0005] Therefore, developing a contact wire de-icing fluid directional spraying device that can achieve directional spraying of de-icing fluid, improve de-icing efficiency, reduce operating costs, and minimize adverse impacts on the surrounding environment and equipment is of great practical significance and urgent need. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a directional spraying device for de-icing fluid on contact wires, which can reduce de-icing fluid waste, improve de-icing efficiency and quality, and reduce de-icing costs.

[0007] The purpose of this utility model is achieved through the following technical solution.

[0008] A directional spraying device for de-icing fluid on contact wires includes a bracket, a contact wire detection plate is provided on the top of the bracket, a proximity sensor is fixed on the bottom surface of each contact wire detection plate, a de-icing fluid distributor is provided on the lower side of the bracket, a shut-off valve is provided on the side of the de-icing fluid distributor, and a de-icing fluid nozzle is provided on each shut-off valve.

[0009] Furthermore, a number of contact wire detection plates are provided in the middle of the top of the bracket, and extension support plates are provided at both ends of the top of the bracket.

[0010] Furthermore, the de-icing fluid distributor uses a hollow tube with equally spaced shut-off valve mounting holes on its side. One end of the de-icing fluid distributor is sealed, and the other end is connected to the outlet of a plunger pump through a pipeline. The inlet of the plunger pump is connected to the de-icing fluid storage tank.

[0011] Furthermore, each of the aforementioned de-icing fluid nozzles is positioned vertically upwards.

[0012] Compared with the prior art, the beneficial effects of the technical solution of this utility model are: Existing technologies suffer from inaccurate de-icing fluid spraying and significant waste. This invention provides a technology for directional spraying of de-icing fluid by real-time detection of the contact wire's position. During de-icing operations, several proximity sensors can detect the contact wire's position in real time. By precisely controlling the start, stop, and opening degree of the plunger pump and shut-off valve when the contact wire is detected, the de-icing fluid nozzle can spray onto the contact wire, accurately targeting the icing area. This reduces adverse effects on the surrounding environment and equipment, reducing de-icing fluid waste by 75%, improving de-icing efficiency and quality, and significantly lowering de-icing costs. Furthermore, this invention has a compact overall structure, organically integrating multiple components, and is highly adaptable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the contact wire de-icing fluid directional spraying device of this utility model.

[0014] Attached reference numerals: 1-Contact wire, 2-Contact wire detection plate, 3-Extension support plate. 4-Bracket, 5-De-icing fluid distributor, 6-Stop valve, 7-De-icing fluid nozzle. Detailed Implementation

[0015] The present invention will now be further described with reference to the accompanying drawings.

[0016] like Figure 1 As shown, the contact wire de-icing fluid directional spraying device of the present invention includes a bracket 4. Several contact wire detection plates 2 are arranged in a straight line along the top middle of the bracket 4, which are connected to each other end to end. Preferably, 3 to 5 plates are arranged. Extension support plates 3 are arranged at both ends of the top of the bracket 4. Each extension support plate 3 is fixedly connected to its adjacent contact wire detection plate 2 and the bracket 4. The extension support plates 3 and the bracket 4 provide support functions.

[0017] Each contact wire detection plate 2 is equipped with a proximity sensor on its bottom surface for real-time detection of the contact wire 1 position. A de-icing fluid distributor 5 is located on the lower side of the bracket 4. Multiple shut-off valves 6 are evenly spaced on the side of the de-icing fluid distributor 5 to control the flow of de-icing fluid. Each shut-off valve 6 is equipped with a de-icing fluid nozzle 7, which is vertically oriented and perpendicular to the contact wire 1, enabling precise spraying of de-icing fluid onto the contact wire at a 90° angle.

[0018] In the above-mentioned device, preferably, the de-icing fluid distributor 5 is a hollow tube with several shut-off valve mounting holes evenly spaced on the side to evenly distribute the de-icing fluid. One end of the de-icing fluid distributor 5 is sealed, and the other end is connected to the outlet of the plunger pump through a pipeline. The inlet of the plunger pump is connected to the de-icing fluid storage tank.

[0019] In the above-mentioned device, preferably, each of the contact sensors, each shut-off valve 6, and the plunger pump are electrically connected to the PLC controller. Each of the contact sensors feeds back the contact wire position information detected in real time to the PLC controller, and the PLC controller controls the start-up, shutdown, and opening degree of each shut-off valve 6 and the plunger pump.

[0020] The working principle of this utility model is as follows: During use, the entire device is fixed on an engineering vehicle. During de-icing operations, the proximity sensor on each contact wire detection plate 2 detects the position of the contact wire 1 in real time and uploads the data to the PLC controller. The PLC controller drives the plunger pump, which delivers the de-icing fluid to the de-icing fluid nozzle 7 via the de-icing fluid distributor 5. Simultaneously, it controls the opening and closing of the shut-off valve 6 to precisely control the spray volume and time.

[0021] Although the functions and working processes of this utility model have been described above in conjunction with the accompanying drawings, this utility model is not limited to the specific functions and working processes described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this utility model without departing from the spirit and scope of the claims, and all of these are within the protection scope of this utility model.

Claims

1. A directional spraying device for de-icing fluid on contact wires, comprising a support frame (4), characterized in that, The top of the bracket (4) is provided with a contact wire detection plate (2), and a proximity sensor is fixed on the bottom surface of each contact wire detection plate (2). A de-icing fluid distributor (5) is provided on the lower side of the bracket (4), and a shut-off valve (6) is provided on the side of the de-icing fluid distributor (5). Each shut-off valve (6) is provided with a de-icing fluid nozzle (7).

2. The contact wire de-icing fluid directional spraying device according to claim 1, characterized in that, The bracket (4) has several contact wire detection plates (2) in the middle of its top, and extension support plates (3) are provided at both ends of the top of the bracket (4).

3. The contact wire de-icing fluid directional spraying device according to claim 1, characterized in that, The de-icing fluid distributor (5) is made of hollow tube and has shut-off valve mounting holes at equal intervals on the side. One end of the de-icing fluid distributor (5) is sealed and the other end is connected to the outlet of the plunger pump through a pipeline. The inlet of the plunger pump is connected to the de-icing fluid storage tank.

4. The contact wire de-icing fluid directional spraying device according to claim 1, characterized in that, Each of the aforementioned de-icing fluid nozzles (7) is set vertically upwards.

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