Device for preventing water conveying pipeline from freezing

Abstract

According to the device for preventing the water conveying pipeline from freezing, the mounting frame is arranged in the water conveying pipeline, the driving motor coaxial with the water conveying pipeline is mounted on the mounting frame, and the paddle assembly is arranged on the driving motor, so that when the interior of the water conveying pipeline is possibly frozen due to the air temperature, the driving motor drives the paddle assembly to rotate; therefore, water spirally flows in the water conveying pipeline, water at different temperatures is mixed, and freezing caused by continuous reduction of the temperature of water close to the wall surface of the water conveying pipeline is prevented. After the water flow is stable, the water which is influenced by centrifugal force, has higher density and is above the freezing point temperature is in contact with the wall surface of the water conveying pipeline, exchanges heat with the outside of the water conveying pipeline, and returns to the center of the water conveying pipeline after the temperature is reduced. Moreover, the water spirally flows in the water conveying pipeline, so that the water flow speed can be increased, the growth of ice crystals is inhibited, more friction heat can be generated, the water temperature is increased to a certain extent, and the purpose of preventing the water conveying pipeline from being frozen is achieved.

Description

Technical Field

[0001] This utility model relates to the field of water pipeline antifreeze technology, specifically to a device for preventing water pipelines from freezing. Background Technology

[0002] In cold winters, especially in high-latitude or mountainous regions, sudden drops in temperature often pose severe challenges to various infrastructures, with water pipelines, particularly those with low water flow rates, experiencing significant icing problems. Common technologies to prevent icing include hot water tracing or electric heat tracing, but these methods are difficult to implement and costly. Utility Model Content

[0003] This invention provides a device for preventing water pipelines from freezing, which improves upon the technical problems of high construction difficulty and high cost of existing methods for preventing water pipeline freezing, thereby reducing construction difficulty and cost.

[0004] To achieve the above objectives, this utility model provides a device for preventing water pipelines from freezing, which is installed inside the water pipeline and includes:

[0005] Mounting bracket, which abuts against the inner wall of the water supply pipe;

[0006] A drive motor is mounted on the mounting bracket and is coaxially arranged with the water supply pipe.

[0007] The propeller assembly includes blades connected to the drive motor. When the air temperature might cause ice to form inside the water pipe, the drive motor rotates the propeller assembly, causing the water to flow in a spiral pattern within the pipe. This mixes the cooler water near the pipe wall with the warmer water near the center, preventing the water near the pipe wall from further cooling and freezing. Once the water flow stabilizes, centrifugal force causes the denser water (above freezing point) to contact the pipe wall and exchange heat with the outside of the pipe. After cooling, the water returns to the center of the pipe. Furthermore, the spiral flow of water in the pipe increases the flow velocity, thus inhibiting ice crystal growth. It also generates more frictional heat, raising the water temperature to some extent, thereby preventing the water pipe from freezing.

[0008] As an optional technical solution, the blade assembly further includes a blade base connected to the drive motor and positioned on the side of the drive motor facing the outlet end of the water supply pipe. The root of the blade is rotatably connected to the blade base, and the direction of rotation is at an acute or right angle to the axis of the drive motor. When there is no risk of icing inside the water supply pipe, the blade rotates towards the axis of the water supply pipe, thereby reducing the resistance to water flow inside the pipe. When the temperature may cause icing inside the water supply pipe, the blade rotates towards the wall of the water supply pipe, thereby increasing the ability to drive water flow.

[0009] As an optional technical solution, the device further includes a first coil, which is disposed outside the water supply pipe and corresponding to the blade. The blade includes a magnetic part, which is used to rotate the blade relative to the blade base under the action of the first coil. The first coil can control the opening angle of the blade according to the water flow velocity in the water supply pipe and the rotation speed of the drive motor, thereby achieving a balance between reducing the resistance of the water flow in the water supply pipe and increasing the driving capacity of the water flow in the present invention.

[0010] As an optional technical solution, a temperature sensor is also included, the temperature sensor signal being connected to the drive motor.

[0011] As an optional technical solution, a flow sensor is also included, with its signal connected to the drive motor. The flow sensor and the temperature sensor can monitor the water flow status within the water pipeline. When there is a risk of freezing, the drive motor can be activated, thereby achieving automated monitoring to prevent the water pipeline from freezing.

[0012] As an optional technical solution, a shunting cover is also included, which is installed on the side of the drive motor facing the water inlet end of the water supply pipe. The shunting cover helps reduce the resistance to water flow within the water supply pipe.

[0013] As an optional technical solution, the mounting bracket is inclined along the direction from the inlet to the outlet of the water supply pipeline. The inclined mounting bracket helps to reduce the resistance to water flow within the water supply pipeline.

[0014] As an optional technical solution, the number of blades is two, and the two blades are symmetrically arranged along the axis of the drive motor. The symmetrical arrangement of the two blades helps to achieve dynamic balance when the blades rotate, reduces the vibration during operation of the anti-icing device for water pipelines, and helps to improve the service life of the anti-icing device for water pipelines.

[0015] As an optional technical solution, the width of the end of the blade connected to the drive motor is smaller than the width of the end away from the drive motor. Increasing the width of the end of the blade away from the drive motor helps to improve the blade's ability to drive water flow.

[0016] As an optional technical solution, the drive motor is an axial flow motor. Axial flow motors have advantages such as high power density and flat design, and using an axial flow motor as the drive motor can better adapt to the narrow space such as the water pipeline.

[0017] One or more technical solutions provided by this utility model have at least the following technical effects or advantages:

[0018] This invention relates to a device for preventing water pipeline icing. An installation frame is installed inside the water pipeline, on which a drive motor, coaxially aligned with the pipeline, is mounted. A paddle assembly is mounted on the drive motor. When the temperature might cause icing inside the pipeline, the drive motor rotates the paddle assembly, causing the water to flow in a spiral pattern within the pipeline. This mixes water of different temperatures, preventing the water near the pipeline wall from further cooling and freezing. Once the water flow stabilizes, centrifugal force causes the denser water (above freezing point) to contact the pipeline wall and exchange heat with the outside, returning to the center of the pipeline after its temperature drops. Furthermore, the spiral flow increases the water velocity, inhibiting ice crystal growth and generating more frictional heat, which raises the water temperature to some extent, thus preventing the pipeline from icing. Attached Figure Description

[0019] The accompanying drawings, which are provided to further illustrate the embodiments of the present invention and constitute a part of the present invention, do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the blades of the device for preventing water pipeline icing in this utility model in the open state.

[0021] Figure 2 for Figure 1 A schematic diagram of the blades of the device for preventing water pipeline icing in the middle of the pipeline in the retracted state.

[0022] Explanation of reference numerals in the attached figures

[0023] Mounting bracket-1; Drive motor-2; Blade assembly-3; Blade-31; Blade base-32; First coil-4; Fairing-5. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this invention, the terms "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can be a mechanical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0028] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0029] In cold winters, especially in high-latitude or mountainous regions, sudden drops in temperature often pose severe challenges to various infrastructures, with water pipelines being particularly problematic due to icing. As a crucial component of urban water supply and agricultural irrigation systems, the stable operation of water pipelines directly impacts the convenience of residents' daily lives, the continuity of agricultural production, and the overall economic stability of society. Given the serious consequences of water pipeline icing, taking effective measures to prevent it is of paramount importance. Existing pipeline antifreeze measures mainly include the following:

[0030] 1. Thermal insulation materials: A certain thickness of thermal insulation material is wrapped around the outside of the water supply pipe to form an air insulation layer, which reduces the rate at which the water temperature inside the pipe drops, thus maintaining the water supply temperature. However, when the water supply pipe is in a low-temperature environment, especially an extreme low-temperature environment, simply increasing the thickness of the thermal insulation material cannot prevent the freezing of the static flow water in the pipe, and its effect on frost prevention is not significant, failing to completely solve the problem of frost damage.

[0031] 2. Antifreeze; Antifreeze is mixed into the water supply pipes to lower the freezing point of the water and improve its cold resistance. However, adding antifreeze can damage the water quality.

[0032] 3. Hot water tracing: Hot water pipes are installed parallel to the water supply pipeline, and insulation material is laid on both. Hot water is used for insulation and freeze protection. However, the installation of hot water tracing insulation pipes involves a large amount of work, and the control of hot water temperature is complex and difficult to operate.

[0033] 4. Electric heat tracing; Electric heat tracing insulation is a type of insulation that uses electric heating tape to generate heat to compensate for heat loss in pipelines. However, it is costly, energy-intensive, and difficult to promote.

[0034] In conclusion, preventing water pipelines from freezing is not only a necessary measure to cope with extreme weather conditions, but also an important guarantee for maintaining social stability and promoting economic development. Therefore, researching and implementing effective measures to solve these problems is of great significance for ensuring the convenience of residents' daily lives, the sustainability of agricultural production, and the economic stability of the entire society.

[0035] Based on this, the present invention provides a device to prevent water pipes from freezing. An installation frame is installed inside the water pipe, on which a drive motor coaxially mounted with the pipe is mounted. A paddle assembly is mounted on the drive motor. When the temperature might cause ice to form inside the pipe, the drive motor rotates the paddle assembly, causing the water to flow in a spiral pattern within the pipe. This mixes water of different temperatures, preventing the water near the pipe wall from further cooling and freezing. Once the water flow stabilizes, centrifugal force causes the denser water (above freezing point) to contact the pipe wall and exchange heat with the outside of the pipe. After cooling, the water returns to the center of the pipe. Furthermore, the spiral flow increases the water velocity, inhibiting ice crystal growth. It also generates more frictional heat, raising the water temperature to some extent, thus preventing the water pipe from freezing.

[0036] The technical solution of this utility model will be described below with reference to the embodiments and accompanying drawings.

[0037] Example 1

[0038] This embodiment provides a device to prevent water pipeline icing. Installed inside the water pipeline, it includes a mounting frame 1, a drive motor 2, and a blade assembly 3. The mounting frame 1 abuts against the inner wall of the water pipeline. The drive motor 2 is mounted on the mounting frame 1 and coaxially arranged with the water pipeline. The blade assembly 3 includes blades 31 connected to the drive motor 2. When the air temperature may cause icing inside the water pipeline, the drive motor 2 drives the blade assembly 3 to rotate, causing the water to flow in a spiral pattern within the pipeline. This mixes the cooler water near the pipeline wall with the warmer water near the center of the pipeline, preventing the water near the pipeline wall from further cooling and freezing. Once the water flow stabilizes, due to centrifugal force, the denser water (approximately 4°C) contacts the pipeline wall and exchanges heat with the outside of the pipeline. After its temperature drops, it returns to the center of the pipeline. On the other hand, the spiral flow of water in the water pipeline can increase the water flow speed, thereby inhibiting ice crystal growth. In addition, it is also conducive to generating more frictional heat, which can raise the water temperature to a certain extent, thereby achieving the purpose of preventing the water pipeline from freezing.

[0039] Example 2

[0040] As an optional implementation, the blade assembly 3 also includes a blade base 32, which is connected to the drive motor 2 and positioned on the side of the drive motor 2 facing the water outlet of the water supply pipe. The root of the blade 31 is rotatably connected to the blade base 32, and the direction of rotation is at an acute or right angle to the axis of the drive motor 2. When there is no risk of icing in the water supply pipe, the blade 31 rotates towards the axis of the water supply pipe, thereby reducing the resistance of the water flow in the water supply pipe; when the temperature may cause icing in the water supply pipe, the blade 31 rotates towards the wall of the water supply pipe, thereby increasing the ability to drive the water flow.

[0041] As an optional implementation, it also includes a first coil 4, which is disposed on the outside of the water supply pipe and corresponding to the blade 31. The blade 31 includes a magnetic part, which is used to rotate the blade 31 relative to the blade base 32 under the action of the first coil 4. The first coil 4 can control the opening angle of the blade 31 according to the water flow velocity in the water supply pipe and the rotation speed of the drive motor 2, thereby achieving a balance between reducing the resistance of the water flow in the water supply pipe and increasing the driving ability of the water flow in the present invention.

[0042] Optionally, a second coil may be included, which can be integrated into the first coil 4. The second coil continuously releases "ultra-fine vibration waves," i.e., electromagnetic energy waves, which propagate downstream along the direction of water flow. Water serves as the medium for transmitting and storing these vibration waves, ensuring that the water in every corner of the pipe network carries the energy of the vibration waves. At the moment of impact on the pipe, the energy is continuously and constantly released, entering the water through the pipe wall, thereby achieving the functions of descaling, corrosion prevention, and sterilization / algae removal.

[0043] As an optional implementation, a temperature sensor is also included, with the temperature sensor signal connected to the drive motor 2.

[0044] As an optional implementation, a flow sensor is also included, with its signal connected to the drive motor 2. The flow sensor and temperature sensor can monitor the water flow status within the water pipeline. When there is a risk of freezing, the drive motor 2 can be activated, thereby achieving automated monitoring to prevent the water pipeline from freezing.

[0045] As an optional implementation, a shunting shield 5 is also included, which is installed on the side of the drive motor 2 facing the water inlet end of the water supply pipe. The shunting shield 5 helps to reduce the resistance of water flow within the water supply pipe.

[0046] As an optional implementation, the mounting bracket 1 is inclined along the direction from the inlet end to the outlet end of the water supply pipe. The inclined mounting bracket 1 helps to reduce the resistance of water flow in the water supply pipe.

[0047] As an optional implementation, the number of blades 31 is two, and the two blades 31 are symmetrically arranged along the axis of the drive motor 2. The symmetrical arrangement of the two blades 31 is beneficial to achieving dynamic balance when the blades 31 rotate, reducing vibration during operation of the anti-icing device for water pipelines, and thus improving the service life of the anti-icing device for water pipelines.

[0048] As an optional implementation, the width of the end of blade 31 connected to the drive motor 2 is smaller than the width of the end away from the drive motor 2. Increasing the width of the end of blade 31 away from the drive motor 2 helps improve the driving capability of blade 31 for water flow.

[0049] As an optional implementation, the drive motor 2 is an axial flow motor. Axial flow motors have advantages such as high power density and flat design, and using an axial flow motor as the drive motor 2 can better adapt to the narrow space such as water pipelines.

[0050] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0051] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An apparatus for preventing freezing of a water delivery pipe installed inside the water delivery pipe, characterized by, The utility model relates to a water pipeline cleaning device, including: a mounting frame abutting against the inner wall of the water pipeline; a driving motor mounted on the mounting frame and coaxially arranged with the water pipeline; a paddle assembly including a blade connected to the driving motor.

2. The device for preventing freezing of a water delivery pipe according to claim 1, wherein The paddle assembly further includes a paddle base connected to the driving motor and arranged on the side of the driving motor facing the water outlet end of the water pipeline, and the root of the blade is rotationally connected to the paddle base with the rotation axis direction forming an acute angle or a right angle with the driving motor axis.

3. A device for preventing freezing of a water delivery conduit according to claim 2, wherein It further includes a first coil arranged outside the water pipeline and corresponding to the blade; the blade includes a magnetic part for rotating the blade relative to the paddle base under the action of the first coil.

4. The device for preventing freezing of a water delivery pipe according to claim 1, wherein It further includes a temperature sensor signal connected to the driving motor.

5. The device for preventing freezing of a water delivery pipe according to claim 1, wherein It further includes a flow sensor signal connected to the driving motor.

6. The device for preventing freezing of a water delivery pipe according to claim 1, wherein It further includes a fairing mounted on the side of the driving motor facing the water inlet end of the water pipeline.

7. The device for preventing freezing of a water delivery pipe according to claim 1, wherein The mounting frame is arranged obliquely along the direction from the water inlet end to the water outlet end of the water pipeline.

8. The device for preventing freezing of a water delivery pipe according to claim 1, wherein The number of blades is two, and the two blades are symmetrically arranged along the driving motor axis.

9. The device for preventing freezing of a water delivery pipe according to claim 1, wherein The width of the end of the blade connected to the driving motor is smaller than the width of the end away from the driving motor.

10. A device for preventing freezing of a water delivery conduit according to any one of claims 1-9, wherein The driving motor is an axial flow motor.

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