Floating heat generating device for a sluice gate

Abstract

This invention discloses a floating heating device for a gate, comprising: a base plate, two protective heat-conducting plates fixedly connected to the upper surface of the base plate, and a heating cable fixedly installed between the two protective heat-conducting plates; side beams fixedly connected to both sides of the two protective heat-conducting plates, and guide mechanisms provided on the outer sides of the two side beams, which are used to raise and lower the device along the gate slot and keep it in position; several limiting mechanisms fixedly provided on the lower surface of the base plate, and floats installed between adjacent limiting mechanisms, which are used to provide buoyancy for the device, allowing the device to float independently on the water-facing side of the gate and to provide ice-melting protection for the front end of the gate leaf and the water-stopping part. Through the above components, precise ice melting is achieved, energy efficiency is higher, and it can float adaptively with the water level; independent installation does not damage the gate structure, the float constraint is reliable, the buoyancy is stable, the rigid frame is impact-resistant, and the operation is safe.

Description

Technical Field

[0001] This invention relates to the field of metal structure technology for water conservancy and hydropower engineering, and in particular to a floating heating device for gates. Background Technology

[0002] In water conservancy and hydropower projects, gates are the core metal structures responsible for water flow regulation and safety protection. Their operational reliability directly affects the overall safety of the project. Especially in the cold winter environment of northern regions, the water surface at the front end of the gate leaf is prone to freezing. Static ice load can damage the metal structure of the gate leaf, and freezing of the water-stop rubber can easily cause opening and closing jamming, sealing failure, or even damage to the opening and closing mechanism.

[0003] Existing gate antifreeze technologies mostly involve direct heating of the gate leaf body or embedded parts, which cannot form an independent ice-melting zone. This results in low ice-melting efficiency, high energy consumption, and difficulty in adapting to changes in ice cover position with water level fluctuations, leading to poor precision ice-melting effects. In addition, traditional antifreeze devices require welding and drilling to install with the gate leaf, disrupting the original structural stress balance. Some fixed structures cannot adaptively float with water levels, making it difficult to cover critical ice-melting areas. Furthermore, device maintenance requires shutting down the gate, affecting project scheduling. These technologies lack versatility and maintainability, failing to meet the long-term safe operation requirements of gates in cold regions with fluctuating water levels. Summary of the Invention

[0004] The purpose of this invention is to solve at least one of the technical problems existing in the prior art, and to provide a floating heating device for gates, which solves the technical problems of inaccurate ice melting, high energy consumption, damage to gate structure, unstable buoyancy, poor impact resistance and unreliable operation of existing gate antifreeze devices.

[0005] The present invention also provides a floating heating device for a gate as described above, comprising a base plate, two protective heat-conducting plates fixedly connected to the upper surface of the base plate, and a heating cable fixedly installed between the two protective heat-conducting plates; side beams are fixedly connected to both sides of the two protective heat-conducting plates, and guide mechanisms are provided on the outer sides of the two side beams, the guide mechanisms being used to raise and lower the device along the gate slot and keep it in alignment; a plurality of limiting mechanisms are fixedly provided on the lower surface of the base plate, and a float is installed between two adjacent limiting mechanisms, the float being used to provide buoyancy for the device, allowing the device to float independently on the water-facing side of the gate and to provide de-icing protection for the front end of the gate leaf and the water-stopping part.

[0006] According to the floating heating device for a gate according to the present invention, the guiding mechanism includes a plurality of wheel supports and a plurality of side wheels; the plurality of wheel supports are symmetrically fixedly connected to the outer surfaces of the two side beams, and the plurality of side wheels are rotatably connected to the ends of the corresponding wheel supports. The side wheels are used to roll with the gate slot; the outer edge of the side wheel rolls in contact with the inner wall of the gate slot to reduce lifting friction and prevent the device from deviating.

[0007] According to the floating heating device for a gate of the present invention, the limiting mechanism includes two lower ribs, a web and a flange; the two lower ribs and the web are both vertically fixed to the lower surface of the base plate, the two lower ribs are respectively located on both sides of the web, and the flange is fixedly connected to the lower edge of the two lower ribs and the web.

[0008] According to the floating heating device for gates of the present invention, a plurality of the floats are respectively fixedly installed between the corresponding lower ribs of two adjacent sets of limiting mechanisms.

[0009] According to the floating heating device for gates of the present invention, a fixing tie rod is sleeved on the outer side of the float, one end of the fixing tie rod is fixedly connected to the lower surface of the base plate, and the other end is fixedly connected to the lower surface of the flange, so as to fasten and constrain the float between the limiting mechanisms.

[0010] According to the floating heating device for gates of the present invention, the heating cable is evenly arranged along the length of the protective heat-conducting plate, and the heating area covers the corresponding position of the gate's water-stop rubber and the area at the front end of the gate leaf that is prone to icing.

[0011] According to the floating heating device for gates of the present invention, a plurality of side ribs are fixedly connected to the included angle region between the protective heat-conducting plate and the side beam.

[0012] According to the floating heating device for gates of the present invention, the bottom plate, protective heat-conducting plate, side beam, lower rib plate, side rib plate, web plate and flange are all made of rigid corrosion-resistant metal material, and the whole constitutes a rigid floating frame structure.

[0013] Beneficial effects: The floating heating device for gates in this technical solution can achieve precise ice melting and significantly improve the antifreeze effect. The heating cable fully covers the front end of the gate leaf and the key icing area of ​​the water-stop rubber. The device floats adaptively with the water level, with high ice melting efficiency and low energy consumption, effectively avoiding damage to the gate leaf by static ice pressure and water-stop freezing and jamming. The device is independently floating and installed without welding or drilling, and does not connect to the gate leaf, thus not damaging the original structure of the gate. The float is reliably constrained by the limiting mechanism and the fixed tie rod, resulting in balanced and stable buoyancy. The rigid frame is highly resistant to water flow impact, ensuring safe and reliable operation. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a front view structural diagram of the floating heating device for a gate according to the present invention; Figure 2 This is a partially enlarged structural view of the left side of the floating heating device for a gate according to the present invention; Figure 3This is a partially enlarged structural view of the right side of the floating heating device for gates according to the present invention; Figure 4 This is a left-side cross-sectional view of the floating heating device for a gate according to the present invention; Figure 5 This is a left view of the floating heating device for a gate according to the present invention; Figure 6 This is a top view of the floating heating device for gates according to the present invention.

[0015] Legend: 1. Side wheel; 2. Wheel bracket; 3. Protective heat-conducting plate; 4. Side beam; 5. Base plate; 6. Float; 7. Fixing strip; 8. Lower rib plate; 9. Web plate; 10. Flange; 11. Heating cable; 12. Side rib plate. Detailed Implementation

[0016] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0017] Reference Figure 1-6 According to an embodiment of the present invention, a floating heating device for a gate includes: a base plate 5, two protective heat-conducting plates 3 are fixedly connected to the upper surface of the base plate 5, and a heating cable 11 is fixedly installed between the two protective heat-conducting plates 3; The protective heat-conducting plate 3 serves as a rigid protective shell for the heating cable 11, and also has the dual functions of uniformly conducting the heat of the cable to the water-facing surface of the device, thus providing both protection and heat conduction. The protective heat-conducting plate 3 extends along the length of the gate leaf. The heating cable 11 is a waterproof, low-temperature resistant, and corrosion-resistant heating element, which is fixed in the middle area between the two protective heat-conducting plates 3 and keeps in close contact with the base plate 5 to ensure that the heat can be efficiently transferred to the water-facing surface and achieve a stable, uniform, and continuous heating and ice-melting effect. Considering that the existing device is prone to displacement and cannot stably rise and fall along the gate slot, side beams 4 are fixedly connected to both sides of the two protective heat-conducting plates 3. Guide mechanisms are provided on the outer sides of the two side beams 4. The guide mechanisms are used to make the device rise and fall along the gate slot and keep it in position. The guide mechanisms include several wheel brackets 2 and several side wheels 1. Several wheel brackets 2 are symmetrically fixedly connected to the outer sides of the two side beams 4, and several side wheels 1 are rotatably connected to the ends of the corresponding wheel brackets 2. The side wheels 1 are used to roll with the gate slot. The outer edge of the side wheel 1 rolls in contact with the inner wall of the gate slot to reduce lifting friction and prevent the device from deviating. The wheel bracket 2 is firmly connected to the side beam 4 by welding or bolt fastening. The side wheel 1 is made of wear-resistant, corrosion-resistant, high-strength stainless steel or engineering plastic material. It rotates flexibly, has low resistance, and can adapt to long-term underwater and low-temperature environment operation without jamming, sticking, or rusting. During operation, the side wheel 1 rolls along the inner wall of the gate slot to guide the device, ensuring that the device does not deviate or jam as the water level rises and falls, significantly improving operational stability and alignment accuracy, and ensuring that the device is always facing the water-facing surface of the gate leaf, thus ensuring that the ice melting area is accurate. Considering that the existing device has no independent buoyancy and cannot float independently from the gate leaf, several limiting mechanisms are fixedly installed on the lower surface of the base plate 5. A float 6 is installed between two adjacent limiting mechanisms. The float 6 is used to provide buoyancy for the device, so that the device floats independently on the water-facing side of the gate and provides de-icing protection for the front end of the gate leaf and the water-stopping part. The float 6 adopts a sealed high-strength buoyancy cylinder, which is filled with lightweight, pressure-resistant, and heat-insulating buoyancy material. The buoyancy is sufficient and stable, and it will not lose buoyancy due to water flow impact, water level fluctuation or low temperature freezing. It can support the overall rigid frame to float stably. It does not need to be suspended, welded or fixed to the gate leaf, and achieves truly independent installation and independent operation. The float 6 provides stable buoyancy support for the overall structure, keeping the device at the optimal ice-melting height and enabling independent operation without connection to the gate, fundamentally avoiding damage to the original gate structure, force balance and sealing system; Considering that the floats 6 are prone to shifting and uneven buoyancy distribution, the limiting mechanism includes two lower ribs 8, a web plate 9, and a flange 10. The two lower ribs 8 and the web plate 9 are both vertically fixed to the lower surface of the bottom plate 5. The two lower ribs 8 are located on both sides of the web plate 9. The flange 10 is fixedly connected to the lower edge of the two lower ribs 8 and the web plate 9. Several floats 6 are fixedly installed between the corresponding lower ribs 8 of two adjacent sets of limiting mechanisms. The lower rib plate 8, the web plate 9, and the flange 10 together form a rigid, closed, and stable limiting space, which provides all-round constraint and positioning for the pontoon 6, preventing the pontoon 6 from swaying left and right, shifting forward and backward, or moving up and down during water flow impact, ice sheet thrust, and rapid rise and fall of water level. The limiting mechanism clamps and positions the float 6 to prevent it from swaying and shifting, ensuring uniform buoyancy and stable device posture. This ensures that the overall device has a consistent draft and stable floating posture, always aligning with the water-stopping rubber area at the front of the door leaf, thus ensuring a stable and reliable ice-melting effect. Considering that the pontoon 6 is not sufficiently restrained and is easily detached by water flow, a fixing strip 7 is fitted on the outer side of the pontoon 6. One end of the fixing strip 7 is fixedly connected to the lower surface of the bottom plate 5, and the other end is fixedly connected to the lower surface of the flange 10, so as to fasten and restrain the pontoon 6 between the limiting mechanisms. The fixing strip 7 is made of corrosion-resistant metal strip, which wraps around the outer wall of the pontoon 6 to form a secondary reinforcement constraint, forming a double protection structure with the limiting mechanism. The fixing tie rod 7 further tightens the buoy 6, enhances the underwater impact resistance, and ensures that the buoy 6 does not loosen or change position during long-term operation. Even under harsh conditions such as high flow rate, high flow velocity and strong ice thrust, it remains stable and reliable, greatly improving the overall service life and safe operation level of the device. Considering the incomplete coverage of the ice-melting area and poor antifreeze effect, the heating cable 11 is evenly arranged along the length of the protective heat-conducting plate 3, and the heating area covers the corresponding position of the gate water-stop rubber and the easily icing area at the front end of the gate leaf; the arrangement length of the heating cable 11 matches the width of the gate leaf, and the heating width covers the entire height of the water-stop rubber and the contact area between the ice surface at the front end of the gate leaf, so as to achieve precise ice melting with no dead angles and full coverage. The heating cable 11 provides continuous and uniform heating, which can precisely melt the ice layer in key parts, effectively prevent the gate leaf and water stop from freezing, improve the reliability of antifreeze, and avoid problems such as static ice pressure squeezing and damaging the gate leaf structure, freezing and hardening of the water stop rubber, and gate opening and closing jamming and failure. It solves the safety hazards of gate operation in cold regions during winter from the source. Multiple side ribs 12 are fixedly connected in the angled area between the protective heat-conducting plate 3 and the side beam 4. The side ribs 12 are triangular or plate-type reinforced structures, evenly distributed at the corners of the frame, used to enhance the overall rigidity and anti-torsion and anti-bending performance of the frame, prevent the device from deforming, opening welds or breaking under long-term floating, impact, and ice pushing, and further improve the overall structural stability. Considering the insufficient overall rigidity and susceptibility to corrosion and deformation, the base plate 5, protective heat-conducting plate 3, side beam 4, lower rib plate 8, side rib plate 12, web plate 9, and flange 10 are all made of rigid anti-corrosion metal materials, forming a rigid floating frame structure. This structure has the characteristics of high strength, high rigidity, corrosion resistance, low temperature resistance, impact resistance, and ice push resistance. It can adapt to the complex and harsh environment of long-term low temperature, water flow scouring, ice layer compression, and underwater corrosion in the cold northern regions. It is not easy to deform, not easy to rust, not easy to be damaged, and requires very little maintenance. The rigid anti-corrosion frame structure has high strength and is resistant to water erosion. It can withstand the thrust of ice sheets and the impact of water flow, extend the service life of the equipment, and reduce operation and maintenance costs and manual inspection workload. In summary, the improvements in this embodiment are as follows: It can achieve precise ice melting and significantly improve the antifreeze effect. The heating cable 11 fully covers the front end of the gate leaf and the key icing area of ​​the water-stop rubber. The device floats adaptively with the water level, with high ice melting efficiency and low energy consumption, effectively avoiding damage to the gate leaf and water-stop freezing and jamming caused by static ice pressure. The device is independently floating and installed without welding or drilling, and does not connect to the gate leaf, so as not to damage the original structure of the gate. The float 6 is reliably constrained by the limiting mechanism and the fixed tie bar 7, with balanced and stable buoyancy. The rigid frame has strong resistance to water flow impact and safe and reliable operation. The device is easy to install, quick to modify, highly versatile, and widely adaptable. It can be applied to various types of gates, such as planar gates, arc gates, inlet gates, control gates, and diversion gates. It can be quickly deployed and put into use without customized modifications. It truly achieves the integrated goals of adaptive water level fluctuation, precise ice melting, non-destructive installation, safe operation, and long-term protection, and fully meets the anti-freezing operation requirements of gates in water conservancy and hydropower projects in cold northern regions and scenarios with frequent water level fluctuations.

[0018] Working principle: The entire system relies on the buoyancy provided by the float 6, allowing the rigid floating frame structure, composed of the bottom plate 5, protective heat-conducting plate 3, side beams 4, lower rib plate 8, web plate 9, flange 10, and side rib plate 12, to float independently on the water-facing side of the gate without needing to be connected to the gate leaf, thus not damaging the original gate structure. The limiting mechanism composed of the lower rib plate 8, web plate 9, and flange 10 clamps and positions the float 6, and with the fastening constraint of the fixing strip 7, it prevents the float 6 from moving or falling off, ensuring balanced buoyancy and stable draft, so that the device is always in the optimal ice-melting position. The side wheel 1, supported by the wheel bracket 2, rolls against the inner wall of the gate slot, reducing lifting friction and allowing the device to automatically float up and down along the gate slot according to water level changes, always accurately aligning with the front end of the gate leaf and the water-stop rubber part. The heating cable 11 is evenly arranged along the length of the protective heat-conducting plate 3 and continuously generates heat. The heating area fully covers the front end of the gate leaf and key icing areas such as the water-stop rubber, achieving targeted and precise ice melting. This avoids damage to the gate leaf due to static ice pressure and prevents the water-stop from freezing, which could cause opening and closing difficulties. The overall system achieves an integrated working effect of adaptive water level fluctuation, independent and stable operation, and efficient ice melting protection, making it suitable for the safe and stable operation of the gate in cold northern regions and water level fluctuation scenarios.

[0019] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A floating heating device for a gate, characterized in that, Includes a base plate (5), on the upper surface of which two protective heat-conducting plates (3) are fixedly connected, and a heating cable (11) is fixedly installed between the two protective heat-conducting plates (3). The two protective heat-conducting plates (3) are respectively fixedly connected to the two sides of the side beam (4), and the two side beams (4) are provided with a guide mechanism on the outer side. The guide mechanism is used to make the device rise and fall along the gate slot and keep it in position. The lower surface of the base plate (5) is fixedly provided with several limiting mechanisms, and a float (6) is installed between two adjacent limiting mechanisms. The float (6) is used to provide buoyancy for the device, so that the device floats independently on the water-facing side of the gate and provides de-icing protection for the front end of the gate leaf and the water-stopping part.

2. The floating heating device for a gate according to claim 1, characterized in that, The guiding mechanism includes several wheel supports (2) and several side wheels (1); several wheel supports (2) are symmetrically fixedly connected to the outer surfaces of the two side beams (4), and several side wheels (1) are rotatably connected to the ends of the corresponding wheel supports (2), and the side wheels (1) are used to roll with the gate slot; The outer edge of the side wheel (1) rolls into contact with the inner wall of the gate slot to reduce lifting friction and prevent the device from shifting.

3. The floating heating device for a gate according to claim 1, characterized in that, The limiting mechanism includes two lower ribs (8), a web (9), and a flange (10); the two lower ribs (8) and the web (9) are both vertically fixed to the lower surface of the base plate (5), the two lower ribs (8) are located on both sides of the web (9), and the flange (10) is fixedly connected to the lower edge of the two lower ribs (8) and the web (9).

4. The floating heating device for a gate according to claim 3, characterized in that, Several of the aforementioned floats (6) are respectively fixedly installed between the corresponding lower ribs (8) of two adjacent sets of limiting mechanisms.

5. The floating heating device for a gate according to claim 4, characterized in that, The outer side of the float (6) is fitted with a fixing strip (7). One end of the fixing strip (7) is fixedly connected to the lower surface of the bottom plate (5), and the other end is fixedly connected to the lower surface of the flange (10) to fasten and constrain the float (6) between the limiting mechanisms.

6. The floating heating device for a gate according to claim 1, characterized in that, The heating cable (11) is evenly arranged along the length of the protective heat-conducting plate (3), and the heating area covers the corresponding position of the gate water-stop rubber and the area at the front end of the gate leaf that is prone to icing.

7. The floating heating device for a gate according to claim 1, characterized in that, Multiple side ribs (12) are fixedly connected to the angle area between the protective heat-conducting plate (3) and the side beam (4).

8. The floating heating device for a gate according to claim 1, characterized in that, The base plate (5), protective heat-conducting plate (3), side beam (4), lower rib plate (8), side rib plate (12), web plate (9) and flange (10) are all made of rigid anti-corrosion metal material, forming a rigid floating frame structure.

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