Anti-freezing device for upstream face of water conservancy and hydropower gate

Abstract

The water conservancy and hydropower gate upstream face anti-freezing device comprises a gate body, a fixing shell is fixed to the upstream face of the gate body, and a plurality of sets of heating assemblies in the horizontal state penetrate through the upstream face of the fixing shell; a grating is arranged on the upstream face of the fixing shell, and the heating assembly is located on the inner side of the grating; an electromagnetic valve is installed on the upstream face of the fixing shell, and a water pump used for pumping out water in the fixing shell is arranged on the gate body. According to the ice melting device, sundries can be effectively blocked, the upstream face of the fixing shell is prevented from being blocked by the sundries, the heating assembly is arranged in the horizontal state, the sundries can be blocked, meanwhile, the heating assembly can make contact with an ice layer which does not make direct contact with the fixing shell in a larger area, and the melting efficiency of the ice layer is improved.

Description

Technical Field

[0001] The invention relates to the technical field of antifreeze devices, and in particular to an antifreeze device for a water-facing surface of a water conservancy and hydropower gate. Background Art

[0002] Water conservancy and hydropower gates are used to intercept and store reservoir water and release reservoir water at a fixed flow rate. During the freezing period in the cold winter in the north, most gates remain stationary, and a thick layer of ice will form on the water-facing surface of the gates. Ice is one of the three states of water. When water condenses into ice, its specific gravity decreases and its volume increases. According to preliminary estimates, the ice layer formed on a steel gate with a width of 10 meters on the water-facing surface at a temperature of minus 20 degrees Celsius can cause the water-facing surface of the gate to bear hundreds of tons of ice pressure, which is a very destructive static pressure.

[0003] For example, the invention patent with Chinese patent application number: CN202211111653.8 discloses an anti-freezing device for the water-facing surface of a water conservancy and hydropower gate. Although the device can melt the ice layer that contacts the elastic heat-conductive layer to prevent the ice layer from accumulating and causing the gate to be deformed and damaged by excessive pressure; however, the elastic heat-conductive layer is arranged in a plane. Since there may be various debris in the river channel, such as branches, wood, plastic bottles and other waste, when these debris come into contact with the elastic heat-conductive layer and are frozen by the ice layer, the elastic heat-conductive layer cannot directly contact the ice layer due to the obstruction of the elastic heat-conductive layer by the debris, which will seriously affect the melting efficiency of the ice layer by the elastic heat-conductive layer and greatly increase the consumption of electric energy. Summary of the invention

[0004] The present invention discloses an anti-freezing device for the water-facing surface of a water conservancy and hydropower gate, which solves the problem of obstruction of the elastic heat-conducting layer by debris, resulting in the elastic heat-conducting layer being unable to directly contact the ice layer, which will seriously affect the melting efficiency of the elastic heat-conducting layer on the ice layer and greatly increase the power consumption.

[0005] In order to solve the above technical problems, the present invention specifically adopts the following technical solutions:

[0006] A device for preventing freezing of the water-facing surface of a water conservancy and hydropower gate comprises a gate body, a fixed shell is fixed to the water-facing surface of the gate body, and a plurality of groups of heating components in a horizontal state are penetrated through the water-facing surface of the fixed shell; a grille is provided on the water-facing surface of the fixed shell, and the heating components are located on the inner side of the grille; an electromagnetic valve is installed on the water-facing surface of the fixed shell, and a water pump for pumping water out of the fixed shell is provided on the gate body.

[0007] Preferably, the heating component includes a tubular electric heating tube that penetrates the water-facing surface of the fixed shell, a thermal insulation layer located outside the fixed shell is fixed on the electric heating tube, a heating layer is fixed on the thermal insulation layer, and a heat-conducting layer is fixed on the heating layer; two adjacent groups of heating components are staggered.

[0008] Preferably, the heating component comprises a plate-shaped electric heating plate.

[0009] Preferably, a heat conducting plate connected to the electric heating pipe is fixed on one side of the fixed shell, and a heat conducting block penetrating the water-facing surface of the fixed shell is fixed on the heat conducting plate.

[0010] Preferably, the grille includes a group of horizontally arranged and U-shaped No. 1 baffle bars, and also includes a group of vertically arranged and U-shaped No. 2 baffle bars, the No. 1 baffle bars are fixed to a group of No. 2 baffle bars; a plurality of connecting tubes are fixed to the water-facing surface of the fixed shell, and the ends of a group of No. 1 baffle bars and a group of No. 2 baffle bars are respectively slidably connected in the plurality of connecting tubes, and leakage holes are opened on the connecting tubes; an electric telescopic rod is fixed to the top of the gate body, and the telescopic end of the electric telescopic rod is fixed to the top of the grille; a plurality of protective tubes that can cover the heating components are fixed to the inner side of the grille.

[0011] Preferably, a column is fixed on the top of the fixed shell, a protective shell is fixed on the top of the column, a motor is fixed in the protective shell, a rotating rod penetrating the protective shell is fixed on the rotating shaft of the motor, a connecting shell is fixed on the other end of the rotating rod, and drainage holes are provided on both sides of the connecting shell and both sides of the bottom surface; a bearing plate connected to a water pump is fixed on the column, the water pumping end of the water pump is connected to a connecting pipe penetrating the top of the fixed shell, and the drainage end of the water pump is connected to a hose connected to the connecting shell.

[0012] Preferably, a solar panel is fixed on the top of the connecting shell.

[0013] Preferably, a bent rod located below is fixed to the water-facing surface of the grille; a pressure sensor is fixed to the water-facing surface of the fixed shell, and a control panel and a battery are fixed to the gate body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The grille can block larger debris in the water and prevent it from sticking to the fixed shell, while several groups of horizontal heating components can cooperate with each other to block smaller debris in the water that passes through the grille; when the ice needs to be melted, the heating component heats up. Since the heating component is horizontally arranged and the heating component cooperates with the water-facing surface of the fixed shell to generate heat, the ice in contact with the fixed shell can be quickly melted; at the same time, the heating component extends to the outside of the fixed shell, which can further melt the ice that is not in contact with the fixed shell but close to the fixed shell, thereby improving the melting efficiency of the ice layer and further expanding the gap between the fixed shell and the ice layer, so that the fixed shell and the gate body are no longer subject to the squeezing force of the ice layer; when the adjacent When debris enters between the two groups of heating components and blocks the water-facing surface of the fixed shell, the two groups of heating components cooperate with the water-facing surface of the fixed shell to generate heat, thereby effectively melting the ice layer near the debris. The water after the ice layer melts can enter the fixed shell through the electromagnetic valve, and then be pumped out by the water pump and discharged to the back water surface of the gate body, so that there is a certain gap between the ice layer and the fixed shell, and there is no need to repeatedly consume electricity to melt the ice. The present invention can effectively block the debris and prevent the debris from blocking the water-facing surface of the fixed shell. In addition, the horizontal setting of the heating component can not only block the debris, but also contact the ice layer that is not directly in contact with the fixed shell with a larger area, thereby accelerating the melting efficiency of the ice layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention in front view and section;

[0017] Figure 2 It is a schematic structural diagram showing a cross section of the thermal insulation layer and a tubular electric heating tube of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the gate body of the present invention from the side;

[0019] Figure 4 The figure is a schematic structural diagram of the plate-shaped electric heating plate of the present invention.

[0020] In the figure: 1. gate body; 2. fixed shell; 21. solenoid valve; 22. pressure sensor; 23. heat conduction plate; 24. heat conduction block; 25. connecting tube; 3. electric heating tube; 31. insulation layer; 32. heating layer; 33. heat conduction layer; 4. grille; 41. No. 1 baffle bar; 42. No. 2 baffle bar; 43. bent rod; 44. protective tube; 5. water pump; 51. connecting pipe; 52. hose; 6. column; 61. protective shell; 62. motor; 63. connecting shell; 64. solar panel; 7. electric telescopic rod; 8. control panel; 81. battery; 9. electric heating plate. DETAILED DESCRIPTION

[0021] The specific contents of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides an anti-freezing device for the water-facing surface of a water conservancy and hydropower gate, comprising a gate body 1, a fixed shell 2 is fixed to the water-facing surface of the gate body 1, and a plurality of groups of heating components in a horizontal state are penetrated through the water-facing surface of the fixed shell 2; a grille 4 is provided on the water-facing surface of the fixed shell 2, and the heating components are located on the inner side of the grille 4; an electromagnetic valve 21 is installed on the water-facing surface of the fixed shell 2, and a water pump 5 for pumping water out of the fixed shell 2 is provided on the gate body 1. The grille 4 can block larger debris, while several groups of heating components can block smaller debris after passing through the grille 4; when some small debris is accumulated for a long time and is located between two adjacent groups of heating components and blocks the water-facing surface of the fixed shell 2, after the heating components start to generate heat, the water-facing surface of the fixed shell is heated up, which can melt the ice layer, and the heating components can also melt the ice layer close to the fixed shell, thereby improving the melting efficiency of the ice layer, and the heating components can melt the ice layer near the debris, and the part between the two adjacent groups of heating components that is not blocked by debris can better radiate heat to the ice layer between the two adjacent groups of heating components, bypass the debris, and melt the ice layer on the side of the debris away from the fixed shell. The heat is not blocked by the debris, and the ice layer can still be melted to the maximum extent; and the water generated after the ice layer melts enters the fixed shell 2 through the solenoid valve 21 and is pumped out by the water pump 5. A filter cover that blocks the solenoid valve 21 can be provided on the fixed shell 2 to prevent the solenoid valve 21 from being blocked by debris.

[0023] like Figure 1 and Figure 2 As shown, the heating component includes an electric heating tube 3 which penetrates the water-facing surface of the fixed shell 2 and is in a tubular shape. A thermal insulation layer 31 located outside the fixed shell 2 is fixed on the electric heating tube 3. A heating layer 32 is fixed on the thermal insulation layer 31. A heat-conducting layer 33 is fixed on the heating layer 32. Two groups of heating components adjacent to each other are staggered. First embodiment: The electric heating tube 3 is in a tubular shape. After the electric heating tube 3 generates heat, the heating layer 32 is heated up. The heat-conducting layer 33 melts the ice layer in contact with it and can radiate to the ice layer that is not blocked by debris to melt the ice layer. The thermal insulation layer 31 can reduce heat loss, save electricity and improve the ice-melting effect. The staggered distribution of the heating components allows for better comprehensive coverage of the ice layer, even melting of the ice layer and avoiding the existence of melting dead corners.

[0024] like Figure 4As shown, the heating component includes a plate-shaped electric heating plate 9. Second embodiment: The electric heating tube 3 is arranged in a plate shape, and the corresponding insulation layer 31, heating layer 32 and heat-conducting layer 33 are all arranged in a plate shape, so that the contact area with the ice layer can be further increased, and the melting efficiency of the ice layer can be improved; and the top of the heat-conducting layer 33 is inclined toward the side away from the fixed shell 2, so that when the ice layer melts, the debris accumulated on the top of the heat-conducting layer 33 can slide down; the plate-shaped electric heating plate is large in size and has a fast melting effect on the ice layer, but it is not convenient for inspection and maintenance, and the disassembly is relatively cumbersome during inspection and maintenance; and the tubular electric heating tube 3 is also better than the antifreeze device in the background technology in melting the ice layer, but slightly lower than the plate-shaped electric heating plate. The tubular electric heating tube 3 is easy to inspect and maintain, and only a single tube needs to be disassembled during inspection, and the inspection efficiency is fast.

[0025] like Figure 1 As shown, a heat conducting plate 23 connected to the electric heating pipe 3 is fixed to one side of the fixed shell 2, and a heat conducting block 24 penetrating the water-facing surface of the fixed shell 2 is fixed to the heat conducting plate 23. After the heat conducting plate 23 is connected to the electric heating pipe 3, the electric heating pipe 3 can heat up the heat conducting plate 23, and the heat conducting block 24 can melt the ice layer in direct contact with the water-facing surface of the fixed shell 2 as the temperature rises, further improving the melting efficiency of the ice layer.

[0026] like Figure 1 As shown, the grille 4 includes a group of horizontally arranged and U-shaped No. 1 baffle rods 41, and also includes a group of vertically arranged and U-shaped No. 2 baffle rods 42, the No. 1 baffle rods 41 are fixed to a group of No. 2 baffle rods 42; a plurality of connecting tubes 25 are fixed to the water-facing surface of the fixed shell 2, and the ends of a group of No. 1 baffle rods 41 and a group of No. 2 baffle rods 42 are respectively slidably connected in the plurality of connecting tubes 25, and leakage holes are opened on the connecting tubes 25; an electric telescopic rod 7 is fixed to the top of the gate body 1, and the telescopic end of the electric telescopic rod 7 is fixed to the top of the grille 4; a plurality of protective tubes 44 that can cover the heating components are fixed to the inner side of the grille 4. The grille 4 can block debris in the water to prevent the debris from approaching the water-facing surface of the fixed shell 2, and can also protect the electric heating tube 3 to prevent larger debris from hitting the electric heating tube 3; when the river is frozen and the electric heating tube 3 is no longer needed, the gate body 1 can be moved upward and out of the water, and the electric telescopic rod 7 can be started (the number of the electric telescopic rods 7 is at least two, and the telescopic ends of the two electric telescopic rods 7 are respectively fixed to the top of the grille 4 through the fixed plate), and the grille 4 is brought close to the fixed shell 2, and the ends of the first and second baffle rods 41 and 42 respectively enter the connecting tube 25, and at the same time, after the protective tube 44 contacts the fixed shell 2, the heat-conducting layer 33 can be covered to complete the protection of the electric heating tube 3, avoid the electric heating tube 3 from being hit, etc., and extend the service life of the electric heating tube 3 and the heat-conducting layer 33; when the electric heating tube 3 is replaced by the electric heating plate 9, the protective tube 44 is also replaced by a rectangular protective frame.

[0027] like Figure 1 and Figure 3 As shown, a column 6 is fixed to the top of the fixed shell 2, a protective shell 61 is fixed to the top of the column 6, a motor 62 is fixed in the protective shell 61, a rotating rod penetrating the protective shell 61 is fixed on the rotating shaft of the motor 62, a connecting shell 63 is fixed to the other end of the rotating rod, and drainage holes are provided on both sides of the connecting shell 63 and both sides of the bottom surface; a bearing plate connected to the water pump 5 is fixed on the column 6, the water pumping end of the water pump 5 is connected to a connecting pipe 51 penetrating the top of the fixed shell 2, and the drainage end of the water pump 5 is connected to a hose 52 connected to the connecting shell 63. There are at least two columns 6, and the bearing plate is fixed between the two columns 6; after starting the water pump 5, the water in the fixed shell 2 can be pumped out through the connecting pipe 51, and then the water is discharged into the connecting shell 63 through the hose 52. Since a part of the electric heating tube 3 is located in the fixed shell 2, the water entering the fixed shell 2 can be heated (the water pump 5 can also intermittently pump the water in the fixed shell 2 to extend the time the water stays in the fixed shell 2, so as to further increase the water temperature); at the same time, the motor 62 is started to make the rotating rod drive the connecting shell 63 to rotate counterclockwise by 10°, The hot water in the connecting shell 63 can be discharged through the drainage holes on the left side of the connecting shell 63 and the left side of the bottom surface. After the hot water is discharged toward the ice layer close to the electric heating tube 3, the melting efficiency of the ice layer can be further improved; when the ice layer is completely melted and the water needs to be discharged so that there is a certain gap between the ice layer and the fixed shell 2, the connecting shell 63 can be restored, and then the connecting shell 63 (the motor 62 adopts a servo motor) can be rotated 10° clockwise, and then the water can be discharged through the drainage holes on the right side of the connecting shell 63 and the right side of the bottom surface; the protective shell 61 can protect the motor 62.

[0028] like Figure 1 and Figure 3 As shown, a solar panel 64 is fixed on the top of the connecting shell 63. The solar panel 64 can convert solar energy into electrical energy, and the connecting shell 63 can be rotated to change the angle of the solar panel 64 so that the solar panel 64 can be better exposed to direct sunlight.

[0029] like Figure 1 and Figure 3As shown, the water-facing surface of the grille 4 is fixed with a bent rod 43 located below; the water-facing surface of the fixed shell 2 is fixed with a pressure sensor 22, and the gate body 1 is fixed with a control panel 8 and a battery 81. The battery 81 can supply power to the motor 62, the electric telescopic rod 7, the water pump 5 and the electric heating tube 3, and the solar panel 64 can also charge the battery 81; the pressure sensor 22 can detect the pressure generated by the ice layer on the fixed shell 2, so that when the set pressure alarm value is reached, the control panel 8 starts the electric heating tube 3, and the control panel 8 can also control the opening and closing of the electric telescopic rod 7, the motor 62 and the water pump 5; there are multiple bent rods 43, and the setting of multiple bent rods 43 can take out the debris in the water through the bent rods 43 when the gate body 1 rises, so as to complete the cleaning of the debris later.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A water conservancy and hydropower gate water-facing surface anti-freezing device, comprising a gate body (1), characterized in that: A fixed shell (2) is fixed on the water-facing surface of the gate body (1), and a plurality of groups of horizontal heating components are passed through the water-facing surface of the fixed shell (2); a grille (4) is provided on the water-facing surface of the fixed shell (2), and the heating components are located on the inner side of the grille (4); an electromagnetic valve (21) is installed on the water-facing surface of the fixed shell (2), and a water pump (5) for pumping water out of the fixed shell (2) is provided on the gate body (1).

2. The anti-freezing device for the water-facing surface of a water conservancy and hydropower gate according to claim 1, characterized in that: The heating component comprises a tubular electric heating tube (3) penetrating the water-facing surface of the fixed shell (2); a heat preservation layer (31) located outside the fixed shell (2) is fixed on the electric heating tube (3); a heating layer (32) is fixed on the heat preservation layer (31); and a heat conduction layer (33) is fixed on the heating layer (32); and two groups of heating components adjacent to each other are arranged in a staggered manner.

3. The anti-freezing device for the water-facing surface of a water conservancy and hydropower gate according to claim 2, characterized in that: The heating component comprises a plate-shaped electric heating plate (9).

4. The anti-freezing device for the water-facing surface of a water conservancy and hydropower gate according to claim 2, characterized in that: A heat conducting plate (23) connected to the electric heating pipe (3) is fixed to one side of the fixed shell (2), and a heat conducting block (24) penetrating the water-facing surface of the fixed shell (2) is fixed to the heat conducting plate (23).

5. The anti-freezing device for the water-facing surface of a water conservancy and hydropower gate according to claim 1, characterized in that: The grille (4) comprises a group of horizontally arranged and U-shaped No. 1 baffle bars (41), and a group of vertically arranged and U-shaped No. 2 baffle bars (42), wherein the No. 1 baffle bars (41) are fixed to a group of No. 2 baffle bars (42); a plurality of connecting tubes (25) are fixed to the water-facing surface of the fixed shell (2), and the ends of the group of No. 1 baffle bars (41) and the group of No. 2 baffle bars (42) are respectively slidably connected in the plurality of connecting tubes (25), and leakage holes are provided on the connecting tubes (25); an electric telescopic rod (7) is fixed to the top of the gate body (1), and the telescopic end of the electric telescopic rod (7) is fixed to the top of the grille (4); a plurality of protective tubes (44) capable of covering the heating components are fixed to the inner side of the grille (4).

6. The anti-freezing device for the water-facing surface of a water conservancy and hydropower gate according to claim 1, characterized in that: A column (6) is fixed on the top of the fixed shell (2), a protective shell (61) is fixed on the top of the column (6), a motor (62) is fixed in the protective shell (61), a rotating rod penetrating the protective shell (61) is fixed on the rotating shaft of the motor (62), a connecting shell (63) is fixed on the other end of the rotating rod, and drainage holes are provided on both sides of the connecting shell (63) and both sides of the bottom surface; a bearing plate connected to a water pump (5) is fixed on the column (6), a water pumping end of the water pump (5) is connected to a connecting pipe (51) penetrating the top of the fixed shell (2), and a water discharge end of the water pump (5) is connected to a hose (52) connected to the connecting shell (63).

7. The anti-freezing device for the water-facing surface of a water conservancy and hydropower gate according to claim 6, characterized in that: A solar panel (64) is fixed on the top of the connecting shell (63).

8. The anti-freezing device for the water-facing surface of a water conservancy and hydropower gate according to claim 1, characterized in that: The water-facing surface of the grille (4) is fixed with a bent rod (43) located below; the water-facing surface of the fixed shell (2) is fixed with a pressure sensor (22); and the gate body (1) is fixed with a control panel (8) and a storage battery (81).

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