Water surface anti-freezing device based on forced convection

Abstract

The invention provides a water surface anti-freezing device based on forced convection, and the device comprises a buoy unit which comprises a buoy body and a water spraying structure; the water supply assembly comprises a water outlet pipe and a submersible pump, and the water outlet pipe is communicated with the water spraying structure; the water inlet unit comprises a plurality of groups of outer pipe fittings, water inlet pipe fittings and adjusting rod fittings, the water inlet pipe fittings are arranged in different depth areas, and the adjusting rod fittings are arranged in the outer pipe fittings and the water inlet pipe fittings; the submersible pump extends into the water inlet unit; the water inlet pipe fitting comprises an end plate, a pressing plate unit, a bottom shell and an elastic pressing rod, one end of the elastic pressing rod is connected to the end plate, the pressing plate unit abuts against the bottom shell through the other end of the elastic pressing rod, a water inlet structure is arranged on the bottom shell, and a sealing ring arranged on the pressing plate unit is pressed on the water inlet structure. Water flow at the proper depth can be extracted according to needs, water flow with the high temperature can be extracted to the water surface to the maximum extent, and the forced convection effect is enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of water surface antifreezing, and in particular relates to a water surface antifreezing device based on forced convection. Background Art

[0002] In cold regions, rivers, lakes and reservoirs will freeze in winter, which will have a certain impact on the safe operation of surface equipment. For example, the freezing in front of the gate will affect the opening of the gate and affect flood discharge; the freezing in front of the rubber dam will accelerate the aging of the dam material and even puncture the rubber material, causing structural failure; the floating device of the photovoltaic power plant on the water surface will be frozen and squeezed and damaged, etc. Therefore, it is very necessary to use anti-freezing equipment.

[0003] The existing technical means use water convection to pump water from deep depths to the surface to increase the temperature of the water on the surface. However, the underwater water flow state is complex and is affected by the terrain and the flow of water. The water temperature at different depths will be different, resulting in the water flow for convection not being a fluid with a large temperature difference, which affects the convection effect. Summary of the invention

[0004] The present invention provides a water surface antifreeze device based on forced convection, aiming to solve the problem that the water temperature at different depths is different, resulting in the water flow for convection not being a fluid with a large temperature difference, thus affecting the convection effect.

[0005] The present invention is implemented as follows: a water surface antifreeze device based on forced convection, comprising:

[0006] A buoy unit, the buoy unit comprising a cylinder body and a water spraying structure provided at a portion of the cylinder body that leaks out of the water surface;

[0007] A water supply assembly, the water supply assembly comprising a water outlet pipe and a submersible pump, the submersible pump is connected to the end of the water outlet pipe, and the water outlet pipe is communicated with the water spray structure;

[0008] A water inlet unit, the water inlet unit comprises a plurality of groups of outer pipes, water inlet pipes and adjusting rods, the outer pipes and water inlet pipes are connected in series in sequence, the water inlet pipes are arranged in different depth areas, and the adjusting rods are arranged inside the outer pipes and the water inlet pipes; the submersible pump extends from one end of the water inlet unit into the water inlet unit;

[0009] The water inlet pipe fitting includes an end plate, a pressure plate unit, a bottom shell and an elastic pressure rod, one end of the elastic pressure rod is connected to the end plate, and the other end holds the pressure plate unit against the bottom shell, a water inlet structure is provided on the bottom shell, a sealing ring provided on the pressure plate unit is pressed onto the water inlet structure, a plurality of adjustment plates are provided on the adjustment rod, the pressure plate unit is in contact with and connected to the adjustment plate of the adjustment rod, and when the adjustment plate rotates, the pressure plate unit is pushed away from the water inlet structure on the bottom shell.

[0010] Preferably, the end plate is connected to one end of the bottom shell, and the pressure plate unit and the elastic pressure rod are arranged between the end plate and the bottom shell.

[0011] Preferably, the pressing plate unit comprises a pressing cylinder and convex ridges and sealing rings distributed in an annular array on the pressing cylinder;

[0012] The pressing cylinder comprises a cylinder body and an annular pressing plate connected to the annular side of the cylinder body, and the center of the cylinder body is a pressing plate shaft hole for accommodating the passage of the adjusting rod;

[0013] The convex ridge is arranged on the side of the pressure plate shaft hole ring, the convex ridge is located on the end surface of the cylinder away from the end plate, and the sealing ring is arranged on the end surface of the annular pressure plate away from the end plate.

[0014] Preferably, the end surface of the bottom shell away from the end plate is provided with a bottom shell shaft hole for accommodating the adjustment rod to pass through;

[0015] Preferably, the water inlet structure includes an annular groove arranged on the shaft hole ring side of the bottom shell and an inlet hole arranged at the bottom of the annular groove. The inlet hole penetrates the bottom shell, and the sealing ring enters the annular groove under the support of the elastic pressure rod and has an interference fit with the annular groove.

[0016] Preferably, the adjustment plate comprises a ring plate and a protrusion, wherein the protrusion is arranged on the end surface of the ring plate in contact with the cylinder, and during the rotation process, the protrusion is in contact with the convex ridge, forcing the sealing ring to leave the annular groove.

[0017] Preferably, the adjusting rod also includes a rotating shaft and a steering motor; an equipment compartment is provided at the end of the water inlet unit away from the water supply assembly;

[0018] The steering motor is arranged in the equipment compartment, and the rotating shaft is connected to the motor shaft of the steering motor and extends into the outer pipe fitting and the water inlet pipe fitting.

[0019] Preferably, several groups of adjustment plates are arranged on the rotating shaft, and the adjustment plates are respectively arranged in different water inlet pipe members.

[0020] Preferably, the number of the ridges is set to one group, and the number of the protrusions is set to multiple groups.

[0021] Preferably, a drainage pipe is provided inside the cylinder, and the drainage pipe is connected to a water outlet pipe. The submersible pump delivers water to the water spray structure on the upper end surface of the cylinder through the drainage pipe and the water outlet pipe.

[0022] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0023] The surface water antifreeze device based on forced convection provided by the present invention is arranged in different depth environments through the water inlet pipe fittings, which are connected in series through external pipe fittings. Each water inlet pipe fitting is equivalent to a group of inlet ports. The corresponding water inlet pipe fittings are opened by adjusting the pipe fittings, so that the submersible pump can obtain water at different depths. By cooperating with the temperature sensor provided on the outside of the water inlet pipe fittings, the water temperature of the corresponding depth can be obtained. Water flow at a suitable depth can be drawn as needed, and water flow with higher temperature can be extracted to the water surface to the greatest extent, thereby enhancing the effect of forced convection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a water surface antifreeze device based on forced convection provided by the present invention.

[0025] Figure 2 It is a schematic structural diagram of a buoy unit and a water supply assembly of a water surface antifreeze device based on forced convection provided by the present invention.

[0026] Figure 3 It is a schematic structural diagram of a water inlet unit of a water surface antifreeze device based on forced convection provided by the present invention.

[0027] Figure 4 It is a structural schematic diagram of a middle water inlet pipe of a water surface antifreeze device based on forced convection provided by the present invention.

[0028] Figure 5 It is a schematic diagram of the internal structure of a water inlet pipe of a water surface antifreeze device based on forced convection provided by the present invention.

[0029] Figure 6 It is a schematic diagram of the pressure cylinder structure of a water surface antifreeze device based on forced convection provided by the present invention.

[0030] Figure 7 The present invention provides a schematic diagram of the structure of an adjustment plate and a pressure cylinder end surface of a water surface antifreeze device based on forced convection.

[0031] Figure 8 It is a schematic diagram of the cylinder structure of a water surface antifreeze device based on forced convection provided by the present invention.

[0032] Description of reference numerals:

[0033] 100, buoy unit; 110, cylinder; 120, cavity; 130, counterweight; 140, drainage tube; 150, drainage trough;

[0034] 200, water supply assembly; 210, water outlet pipe; 220, submersible pump;

[0035] 300, water inlet unit; 310, outer pipe fitting; 320, water inlet pipe fitting; 321, end plate; 322, pressure plate unit; 3221, pressure cylinder; 3222, pressure plate shaft hole; 3223, convex ridge; 3224, sealing ring; 323, bottom shell; 3231, annular groove; 3232, bottom shell shaft hole; 324, elastic pressure rod; 330, equipment compartment; 340, adjusting rod; 341, rotating shaft; 342, adjusting plate; 3421, protrusion; 3422, ring plate; 343, steering motor. DETAILED DESCRIPTION

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] The embodiment of the present invention provides a water surface antifreeze device based on forced convection, such as Figure 1-Figure 8 As shown, the water surface antifreeze device based on forced convection includes:

[0039] The buoy unit 100 includes a cylinder 110 and a water spraying structure provided on a portion of the cylinder 110 that leaks out of the water surface;

[0040] A water supply assembly 200, the water supply assembly 200 comprises a water outlet pipe 210 and a submersible pump 220, the water outlet pipe 210 adopts a hard pipe as a water outlet channel of the submersible pump 220, the submersible pump 220 is connected to the end of the water outlet pipe 210, one end of the water outlet pipe 210 away from the submersible pump 220 is connected to the water spray structure on the buoy unit 100, the submersible pump 220 transports warm water below the water surface to the water spray structure, and the water spray structure releases the warm water onto the water surface;

[0041] The water inlet unit 300 includes a plurality of groups of outer pipes 310 and water inlet pipes 320, the outer pipes 310 and water inlet pipes 320 are arranged at intervals, and an adjusting rod 340 is provided inside the outer pipes 310 and water inlet pipes 320; the submersible pump 220 extends from one end of the water inlet unit 300 into the water inlet unit 300;

[0042] The water inlet pipe 320 includes an end plate 321, a pressure plate unit 322, a bottom shell 323 and an elastic pressure rod 324. One end of the elastic pressure rod 324 is connected to the end plate 321, and the other end holds the pressure plate unit 322 against the bottom shell 323. The bottom shell 323 is provided with an annular groove 3231. The sealing ring 3224 provided on the pressure plate unit 322 is pressed on the annular groove 3231.

[0043] The adjusting rod 340 is provided with a plurality of adjusting plates 342, and the pressure plate unit 322 is in contact with the adjusting plate 342 of the adjusting rod 340. When the adjusting plate 342 rotates, the pressure plate unit 322 is pushed away from the water inlet structure on the bottom shell 323. The plurality of water inlet pipes 320 are arranged in different depth areas. The corresponding water inlet pipes 320 are opened by rotating the adjusting rod 340 to allow warm water from the outside to enter the water inlet unit 300. Under the action of the submersible pump 220, suitable warm water is transported to the water surface, and the temperature distribution inside the water body is improved by forced convection, thereby reducing the occurrence of ice on the water surface.

[0044] The water inlet pipes 320 are connected in series through the outer pipes 310 and arranged in different depth environments. Each water inlet pipe 320 is equivalent to a group of inlet ports. The corresponding water inlet pipe 230 is opened by adjusting the pipes, so that the submersible pump 220 can obtain water at different depths and extract water with higher temperature to the surface to the greatest extent, thereby enhancing the effect of forced convection. A temperature sensor is provided on the outside of the water inlet pipe 320 to obtain the water temperature at the corresponding depth and help the operator to perform corresponding adjustment operations.

[0045] In this embodiment, a cavity 120 and a counterweight 130 are provided inside the cylinder 110. The cavity 120 provides buoyancy for the entire device, ensuring that the device is subjected to an upward traction force and maintains a vertical state in the water in cooperation with its own gravity; the counterweight 130 helps the cylinder 110 to obtain stability, and at the same time, the cylinder 110 is also fixed on the riverbed by anchoring means to reduce the movement of the cylinder 110. The anchoring method here adopts the existing technology and is not described in detail; the submersible pump 220 adopts the existing technology equipment, and the outlet pipe 210 is provided with a flange away from the cylinder 110, and the flange is connected to the outer pipe 310 away from the riverbed, and the submersible pump 220 is connected to the end of the outlet pipe 210 and extends into the outer pipe 310 away from the riverbed;

[0046] The water spraying structure is a drainage groove 150 provided on the cylinder 110, the upper end surface of the cylinder 110 is an arc-shaped structure, and the cylinder 110 adopts a cable power supply method; the drainage pipe 140 provided inside the cylinder 110 is connected with the water outlet pipe 210, and the submersible pump 220 delivers water to the upper end surface of the cylinder 110 through the drainage pipe 140 and the water outlet pipe 210, and the drainage groove 150 arranged near the drainage pipe 140 evenly disperses the water flow to different directions. In addition to the technical solution disclosed in this application, the water spraying structure can also be a rotating nozzle, and the drainage pipe 140 is connected to the water inlet end of the rotating nozzle, and the rotating nozzle is used to spray water to different areas;

[0047] As a preferred implementation in this embodiment, the end plate 321 is connected to one end of the bottom shell 323, and the pressure plate unit 322 and the elastic pressure rod 324 are arranged between the end plate 321 and the bottom shell 323;

[0048] The pressure plate unit 322 includes a pressure cylinder 3221 and convex ridges 3223 and a sealing ring 3224 distributed in an annular array on the pressure cylinder 3221. The pressure cylinder 3221 includes a cylinder body and an annular pressure plate connected to the annular side of the cylinder body. The center of the cylinder body is a pressure plate shaft hole 3222 for accommodating the adjustment rod 340 to pass through. The convex ridges 3223 are arranged on the annular side of the pressure plate shaft hole 3222 and are located on the end surface of the cylinder body away from the end plate 321. The sealing ring 3224 is arranged on the end surface of the annular pressure plate away from the end plate 321.

[0049] The end surface of the bottom shell 323 away from the end plate 321 is provided with a bottom shell shaft hole 3232 for accommodating the adjustment rod 340 to pass through; the ring side of the bottom shell shaft hole 3232 is provided with an annular groove 3231; the bottom of the annular groove 3231 is provided with a plurality of inlet holes penetrating the bottom shell 323; the sealing ring 3224 will be interference-fitted with the annular groove 3231 under the support of the elastic pressure rod 324 to seal the inlet holes;

[0050] The elastic pressure rod 324 includes a spring, a guide rod connected to the end plate 321, and a guide groove ring arranged on the annular pressure plate. The spring is nested around the guide rod, and the end of the spring away from the end plate 321 is abutted against the guide groove ring to ensure that the annular pressure plate has sufficient pressure to complete the sealing.

[0051] The adjusting plate 342 extends into the interior of the cylinder and is in contact with the end surface of the cylinder provided with a ridge 3223. The adjusting plate 342 includes a ring plate 3422 and a protrusion 3421. The ring plate 3422 is in contact with the cylinder. The protrusion 3421 is arranged on the end surface of the ring plate 3422 in contact with the cylinder. During the rotation process, when the ridge 3223 contacts different protrusions 3421, the sealing ring 3224 is forced to leave the annular groove 3231, so that the external water flows into the water inlet unit 300 through the inlet hole, thereby completing the task of opening the water inlet port.

[0052] In this embodiment, the number of ridges 3223 is set to one group, and generally one group is composed of two boss structures arranged in an axisymmetric manner; while the number of protrusions 3421 is multiple groups, and one group is also composed of two protrusion structures. During the rotation process, when the protrusion 3421 reaches the vicinity of the ridge 3223, a gap will appear between the adjustment plate 342 and the cylinder due to the rigid contact between the two, so that the annular pressure plate is lifted to allow water to enter from the annular groove 3231;

[0053] The number of protrusions 3421 is configured according to the number of water inlet pipe fittings 320 and the control needs. For example, in the present application, the number of water inlet pipe fittings 320 is three groups, and the number of protrusions 3421 is four groups. The water inlet pipe fittings 320 are numbered No. 1 water inlet pipe fitting 320, No. 2 water inlet pipe fitting 320, and No. 3 water inlet pipe fitting 320 in sequence according to the distance from the water surface. Here, the adjustment plate 342 in the No. 1 water inlet pipe fitting 320 is taken as an example. The functions of the four groups of protrusions 3421 are respectively independent opening, opening at the same time with the No. 2 water inlet pipe fitting 320, opening at the same time with the No. 3 water inlet pipe fitting 320, and opening all of them. Here, opening at the same time with the No. 2 water inlet pipe fitting 320 and opening at the same time with the No. 3 water inlet pipe fitting 320 The three functions of simultaneous opening and full opening require the adjustment plates 342 inside the No. 2 water inlet pipe 320 and the No. 3 water inlet pipe 320 to cooperate with each other, and the protrusions 3421 need to be set in the corresponding areas at the same time; for example, when the No. 2 water inlet pipe 320 is opened simultaneously, when the adjustment plate 342 in the No. 1 water inlet pipe 320 rotates to this area, the adjustment plate 342 in the No. 2 water inlet pipe 320 is also provided with a protrusion 3421, which will contact and connect with the convex ridge 3223 on the No. 2 water inlet pipe 320 to complete the lifting function, while the No. 3 water inlet pipe 320 cannot allow water to flow into the water inlet pipe 320 because there is no contact between the protrusion 3421 and the convex ridge 3223;

[0054] Adding or reducing a certain number of water inlet pipes 320 requires configuring the adjustment plate 342; the specific configuration method refers to the technical principles in this application, and will not be described in detail;

[0055] As a preferred implementation in this embodiment, the adjusting rod 340 also includes a rotating shaft 341 and a steering motor 343; the end of the water inlet unit 300 away from the water supply assembly 200 is provided with an equipment bin 330; in this application, the number of the outer pipe fittings 310 and the water inlet pipe fittings 320 are both three groups, and the outer pipe fittings 310 and the water inlet pipe fittings 320 are connected to the water supply assembly 200 in series in sequence, and the equipment bin 330 is connected to a group of water inlet pipe fittings 320 farthest from the water supply assembly 200;

[0056] The steering motor 343 is arranged in the equipment compartment 330, the rotating shaft 341 is connected to the motor shaft of the steering motor 343 and extends to the water inlet device formed by the outer pipe 310 and the water inlet pipe 320 connected in series, and a plurality of groups of adjustment plates 342 are arranged on the rotating shaft 341, and the adjustment plates 342 are respectively arranged in different water inlet pipes 320;

[0057] The pressure plate shaft hole 3222, the bottom shell shaft hole 3232 and the shaft hole provided on the end plate 321 accommodate the rotation shaft 341 to pass through. The bottom shell shaft hole 3232 is also provided with a bearing for assembling the rotation shaft 341 to improve the stability of the rotation shaft 341 during rotation.

[0058] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A water surface antifreeze device based on forced convection, characterized in that: include: A buoy unit (100), the buoy unit (100) comprising a cylinder (110) and a water spraying structure provided on a portion of the cylinder (110) leaking out of the water surface; A water supply assembly (200), the water supply assembly (200) comprising a water outlet pipe (210) and a submersible pump (220), the submersible pump (220) being connected to the end of the water outlet pipe (210), and the water outlet pipe (210) being in communication with a water spray structure; A water inlet unit (300), the water inlet unit (300) comprising a plurality of groups of outer pipes (310), water inlet pipes (320) and an adjusting rod (340), the outer pipes (310) and the water inlet pipes (320) being connected in series in sequence, the water inlet pipes (320) being arranged in different depth regions, and the adjusting rod (340) being arranged inside the outer pipes (310) and the water inlet pipes (320); the submersible pump (220) extending from one end of the water inlet unit (300) into the water inlet unit (300); The water inlet pipe member (320) comprises an end plate (321), a pressure plate unit (322), a bottom shell (323) and an elastic pressure rod (324); one end of the elastic pressure rod (324) is connected to the end plate (321), and the other end holds the pressure plate unit (322) against the bottom shell (323); a water inlet structure is provided on the bottom shell (323); a sealing ring (3224) provided on the pressure plate unit (322) is pressed onto the water inlet structure; a plurality of groups of adjustment plates (342) are provided on the adjustment rod (340); the pressure plate unit (322) is in contact with and connected to the adjustment plate (342) of the adjustment rod (340); and when the adjustment plate (342) rotates, the pressure plate unit (322) is pushed away from the water inlet structure on the bottom shell (323).

2. A water surface antifreeze device based on forced convection as claimed in claim 1, characterized in that: The end plate (321) is connected to one end of the bottom shell (323), and the pressure plate unit (322) and the elastic pressure rod (324) are arranged between the end plate (321) and the bottom shell (323).

3. A water surface antifreeze device based on forced convection as claimed in claim 2, characterized in that: The pressing plate unit (322) comprises a pressing cylinder (3221) and convex ridges (3223) and sealing rings (3224) distributed in an annular array on the pressing cylinder (3221); The pressing cylinder (3221) comprises a cylinder body and an annular pressing plate connected to the annular side of the cylinder body, and the center of the cylinder body is a pressing plate shaft hole (3222) for accommodating the adjusting rod (340) to pass through; The ridge (3223) is arranged on the annular side of the pressure plate shaft hole (3222), the ridge (3223) is located on the end surface of the cylinder away from the end plate (321), and the sealing ring (3224) is arranged on the end surface of the annular pressure plate away from the end plate (321).

4. A water surface antifreeze device based on forced convection as claimed in claim 3, characterized in that: The end surface of the bottom shell (323) away from the end plate (321) is provided with a bottom shell shaft hole (3232) for accommodating the adjusting rod (340) to pass through.

5. A water surface antifreeze device based on forced convection as claimed in claim 4, characterized in that: The water inlet structure comprises an annular groove (3231) arranged on the annular side of the bottom shell shaft hole (3232) and an inlet hole arranged at the bottom of the annular groove (3231); the inlet hole penetrates the bottom shell (323); the sealing ring (3224) enters the annular groove (3231) under the supporting action of the elastic pressure rod (324) and is interference-fitted with the annular groove (3231).

6. A water surface antifreeze device based on forced convection as claimed in claim 5, characterized in that: The adjustment plate (342) comprises a ring plate (3422) and a protrusion (3421), wherein the protrusion (3421) is arranged on the end surface of the ring plate (3422) which is in contact with the cylinder body, and during the rotation process, the protrusion (3421) is in contact with the ridge (3223), forcing the sealing ring (3224) to leave the annular groove (3231).

7. A water surface antifreeze device based on forced convection as claimed in claim 6, characterized in that: The adjusting rod (340) further comprises a rotating shaft (341) and a steering motor (343); an equipment compartment (330) is provided at the end of the water inlet unit (300) away from the water supply assembly (200); The steering motor (343) is arranged in the equipment compartment (330), and the rotating shaft (341) is connected to the motor shaft of the steering motor (343) and extends into the outer pipe (310) and the water inlet pipe (320).

8. A water surface antifreeze device based on forced convection as claimed in claim 7, characterized in that: A plurality of groups of adjustment plates (342) are arranged on the rotating shaft (341), and the adjustment plates (342) are respectively arranged in different water inlet pipe members (320).

9. A water surface antifreeze device based on forced convection as claimed in claim 6, characterized in that: The number of the ridges (3223) is set to one group, and the number of the protrusions (3421) is set to multiple groups.

10. The water surface antifreeze device based on forced convection according to claim 1, characterized in that: A drainage pipe (140) is provided inside the cylinder (110), and the drainage pipe (140) is connected to a water outlet pipe (210). The submersible pump (220) delivers water to a water spray structure on the upper end surface of the cylinder (110) through the drainage pipe (140) and the water outlet pipe (210).

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