Drain pipe anti-freezing device
By installing antifreeze components on the water supply and drainage pipes, including water tanks, heating blocks, and secondary heating components, stable antifreeze protection is achieved in cold regions, solving the problem of easy freezing of water supply and drainage pipes in existing technologies, and ensuring the normal operation of the system and the safety of the pipes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI MUNICIPAL DESIGN INST
- Filing Date
- 2025-08-13
- Publication Date
- 2026-08-04
AI Technical Summary
In existing technologies, antifreeze methods for water supply and drainage pipes in cold regions are inefficient and pose potential risks. In particular, when the low temperature persists, heat loss is rapid, causing the water temperature inside the pipe to drop quickly and easily freeze. Furthermore, traditional manual hot water pouring methods pose safety hazards and pipe stress fatigue problems, and cannot effectively cope with prolonged low temperatures in the frigid northern regions.
The system employs antifreeze components, including a water tank, heating block, pump, output pipe, and secondary heating components. By winding the output pipe around the water supply and drainage pipe body, a progressive heating process of initial heating, circulating heat transfer, and secondary reheating is used to ensure that the medium inside the water supply and drainage pipe body does not freeze, resulting in a stable antifreeze effect.
It significantly improves the stability of antifreeze effect, effectively prevents the medium inside the pipe from freezing, ensures the normal operation of the water supply and drainage system, and avoids the safety hazards and pipe damage of traditional methods.
Smart Images

Figure CN224592918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water supply and drainage engineering technology, and in particular to a water supply and drainage pipe antifreeze device. Background Technology
[0002] In cold regions during winter, the threat of freezing to water supply and drainage pipes far exceeds the tolerance of ordinary insulation methods. The insulation material wrapping method widely used in existing technologies has obvious limitations. These materials mostly rely on the principle of static heat insulation. When the outside temperature is consistently below -10℃, the rate of heat loss will accelerate sharply, causing the water temperature inside the pipe to drop rapidly to the freezing point. This makes it difficult to cope with the low temperatures that can last for several weeks in the frigid northern regions.
[0003] The method of manually pouring hot water for freeze protection is not only inefficient but also harbors multiple hidden dangers. This method requires frequent manual operation, which can easily lead to gaps in protection at night or during periods of unattended operation, resulting in freezing accidents. At the same time, the drastic temperature difference generated when hot water comes into contact with low-temperature pipes can cause stress fatigue in the pipes due to thermal expansion and contraction, and repeated operation over a long period of time will significantly shorten the service life of the pipes. In addition, the poured hot water will cool down rapidly in low-temperature environments, and may even form an ice layer on the surface of the pipes, which will exacerbate the risk of freezing and blockage. Especially in outdoor exposed pipes or shallowly buried pipe networks, this passive freeze protection method often fails completely in extreme weather conditions, making it impossible to guarantee the normal operation of the water supply and drainage system. Summary of the Invention
[0004] The purpose of this invention is to provide an antifreeze device for water supply and drainage pipes to solve the problems existing in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A water supply and drainage pipe antifreeze device includes a water supply and drainage pipe body, wherein the water supply and drainage pipe body is protected from freezing by an antifreeze component, the antifreeze component comprising: A water tank, with its lower side connected to the first end of the inlet pipe and its upper side connected to the second end of the outlet pipe, contains a set of heating blocks inside and a microcontroller mounted on its outer surface; and The pump has its input end connected to the second end of the input tube, its output end connected to the first end of the output tube, and is electrically connected to the microcontroller. The output pipe is wound around the water supply and drainage pipe body. The output pipe wound around the water supply and drainage pipe body is divided into a front half and a rear half. The rear half of the output pipe is also provided with a secondary heating component electrically connected to the single-chip microcomputer to ensure the stability of the antifreeze effect.
[0006] In one possible implementation, the secondary heating component includes: A temperature monitor, installed on the output pipe, with its monitoring head extending into the output pipe, is used to monitor the water temperature in the latter half of the output pipe; and A plurality of heating wires are evenly spaced along the circumference of the output tube, and the heating end of the heating wire extends into the output tube to perform secondary heating on the water in the latter half of the output tube.
[0007] In one possible implementation, the heating wire is fixed to the peripheral wall of the output tube by an insulating mounting block, thus avoiding direct contact with the peripheral wall of the output tube.
[0008] In one possible implementation, the water tank is further equipped with a temperature detector electrically connected to the single-chip microcomputer for detecting the water temperature inside the water tank.
[0009] In one possible implementation, a control panel electrically connected to the microcontroller is also mounted on the outer surface of the water tank.
[0010] In one possible implementation, a temperature display electrically connected to the single-chip microcomputer is also mounted on the outer surface of the water tank.
[0011] In one possible implementation, the outer side of the water supply and drainage pipe body is also wrapped with protective cotton.
[0012] In one possible implementation, the water tank is also provided with a water inlet.
[0013] In one possible implementation, a protective frame is also provided around the water tank, and the pump is mounted on the protective frame.
[0014] The beneficial effects of the technical solution provided by this utility model include at least the following: The water supply and drainage pipe body in this technical solution is protected against freezing by an antifreeze component. This antifreeze component includes a water tank, one side of which is connected to the first end of the input pipe, and the other side of which is connected to the second end of the output pipe. Inside the tank is a set of heating blocks, and a microcontroller is mounted on its outer surface. A pump is also included, with its input end connected to the second end of the input pipe and its output end connected to the first end of the output pipe, and it is electrically connected to the microcontroller. The output pipe is wound around the water supply and drainage pipe body and is divided into a front section and a rear section. The rear section of the output pipe also has a secondary heating component electrically connected to the microcontroller. In this configuration, the coordinated use of the antifreeze component and the water supply and drainage pipe body significantly improves the stability of the antifreeze effect, effectively prevents the medium inside the pipe from freezing, and ensures the normal operation of the water supply and drainage system. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] Figure 1 A schematic diagram of the structure of an antifreeze device for water supply and drainage pipes provided in an exemplary embodiment of the present invention is shown.
[0017] Figure 2 A schematic diagram of the secondary heating component of the water supply and drainage pipe antifreeze device provided in an exemplary embodiment of the present invention is shown.
[0018] Figure 3 A schematic diagram of the water tank structure of the water supply and drainage pipe antifreeze device provided in an exemplary embodiment of the present invention is shown.
[0019] In the picture: 1. Water supply and drainage pipe body; 2. Antifreeze components; 201. Water tank; 202. Water inlet; 203. Heating block; 204. Temperature detector; 205. Temperature display; 206. Protective frame; 207. Pump; 208. Input pipe; 209. Output pipe; 210. Temperature monitor; 211. Insulating mounting block; 212. Heating wire; 213. Microcontroller; 214. Control panel; 215. Protective cotton. Detailed Implementation
[0020] 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.
[0021] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings of this utility model, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more.
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Figure 1 This diagram illustrates the structure of an antifreeze device for water supply and drainage pipes provided in an exemplary embodiment of the present invention. Figure 3 This illustration shows a schematic diagram of the water tank structure of an antifreeze device for water supply and drainage pipes provided in an exemplary embodiment of the present invention. The antifreeze device includes a water supply and drainage pipe body 1, which is protected from freezing by an antifreeze component 2. The antifreeze component 2 includes: a water tank 201, one side of which is connected to the first end of an input pipe 208, and the other side of which is connected to the second end of an output pipe 209. A set of heating blocks 203 are provided inside the water tank, and a microcontroller 213 is mounted on its outer surface; and a pump 207, the input end of which is connected to the second end of the input pipe 208, and the output end of which is connected to the first end of the output pipe 209. The pump is electrically connected to the microcontroller 213. The output pipe 209 is wound around the water supply and drainage pipe body 1 and is divided into a front half and a rear half. The rear half of the output pipe 209 is also provided with a secondary heating component electrically connected to the microcontroller 213 to ensure the stability of the antifreeze effect.
[0024] In this embodiment, the water stored in the tank is initially heated by the internal heating block, then drawn in by a pump controlled by a microcontroller through an input pipe and transported through an output pipe. The output pipe, wound around the water supply and drainage pipe body, heats the pipe body through heat transfer. To avoid heat loss affecting the antifreeze effect, a secondary heating component is added to the latter half of the output pipe, uniformly controlled by the microcontroller, forming a progressive heating process of initial heating, circulating heat transfer, and secondary reheating. This ensures uniform heating of the water supply and drainage pipe body throughout the process, maintaining stable insulation of the medium within the pipe body even in low-temperature environments, thus achieving precise antifreeze protection for the water supply and drainage pipe. It is understood that the antifreeze component 2 is powered by an external power source.
[0025] Figure 2 This illustration shows a schematic diagram of the secondary heating component of an exemplary embodiment of the water supply and drainage pipe antifreeze device of the present invention. The secondary heating component includes: a temperature monitor 210, which is installed on the output pipe 209, with its monitoring head extending into the output pipe 209 for monitoring the water temperature in the latter half of the output pipe 209; and heating wires 212, a plurality of heating wires 212 being evenly spaced along the circumference of the output pipe 209, with the heating end of the heating wire 212 extending into the output pipe 209 to perform secondary heating of the water in the latter half of the output pipe 209. The heating wires 212 are fixed to the peripheral wall of the output pipe 209 by insulating mounting blocks 211 to avoid direct contact with the peripheral wall of the output pipe 209.
[0026] In this embodiment, a temperature monitor is inserted into the pipe to capture real-time water temperature changes, and the data is synchronously fed back to the microcontroller. Heating wires, evenly distributed around the circumference of the output pipe, directly act on the water flow inside the pipe, rapidly increasing the water temperature and compensating for heat transfer losses in the first half. An insulating mounting block isolates the heating wires from the pipe wall, preventing unnecessary heat loss to the pipe wall and preventing the circuit from forming a conductive path with the pipe, ensuring heating efficiency and electrical safety.
[0027] For details, please refer to Figure 1 and Figure 3 The water tank 201 is also equipped with a temperature detector 204 electrically connected to the microcontroller 213 for detecting the water temperature inside the water tank 201. A control panel 214 electrically connected to the microcontroller 213 is also installed on the outer surface of the water tank 201. A temperature display 205 electrically connected to the microcontroller 213 is also installed on the outer surface of the water tank 201.
[0028] In this embodiment, a temperature detector monitors the water temperature in the tank in real time, and the data is transmitted to the microcontroller to ensure that the initial heating temperature meets the standard. The control panel allows users to set parameters such as temperature thresholds, and the commands are converted into execution signals by the microcontroller to adjust the working status of the heating block. The temperature display visually presents the real-time water temperature, allowing users to intuitively understand the tank's operating status.
[0029] For more details, see [link to relevant documentation]. Figure 1 The outer side of the water supply and drainage pipe body 1 is also wrapped with protective cotton 215. It can be understood that the protective cotton 215 also wraps the output pipe 209 wrapped around the water supply and drainage pipe body 1.
[0030] In this embodiment, the protective cotton is asbestos insulation material. The asbestos material is wrapped around the outside of the water supply and drainage pipe body, which can reduce the heat exchange between the pipe body and the external environment, slow down the temperature loss inside the pipe, and work synergistically with the active heating of the antifreeze component to further block the impact of low temperature on the pipe and improve the overall antifreeze reliability.
[0031] Furthermore, a water inlet 202 is also provided on the water tank 201. A protective frame 206 is also provided on the outer perimeter of the water tank 201, and the pump 207 is installed on the protective frame 206.
[0032] In this embodiment, the water inlet facilitates the replenishment of water to the water tank, and the protective frame surrounds the outer perimeter of the water tank, providing a stable mounting carrier for the pump and forming physical protection for the water tank, reducing external collisions and improving the overall safety and durability of the device.
[0033] Next, the working principle of the antifreeze device for water supply and drainage pipes involved in the embodiments of this utility model will be explained.
[0034] First, inject sufficient water into the water tank 201 through the water inlet 202 to ensure that the liquid level meets the circulation requirements; Then the heating block 203 is activated to initially heat the water in the water tank 201; During the heating process, the temperature detector 204 continuously monitors the water temperature, and the real-time data is synchronously transmitted to the temperature display 205, so that the operator can intuitively grasp the heating progress. When the water temperature in the water tank 201 rises to the preset threshold, the operator sends a start command to the microcontroller 213 through the control panel 214, and the pump 207 starts running. Its input end draws hot water from the water tank 201 through the input pipe 208, and then delivers it to the pipeline wrapped around the surface of the water supply and drainage pipe body 1 through the output pipe 209. When hot water flows in the output pipe 209, it first preheats the water supply and drainage pipe body 1 through the first half. When the water flows to the second half, the temperature monitor 210 detects the water temperature in the pipe. If the water temperature is lower than the set standard due to heat loss, the microcontroller 213 immediately triggers the heating wire 212 to work. The heating wire 212 quickly releases heat to reheat the water flow, ensuring that the hot water temperature on the surface of the water supply and drainage pipe body 1 remains constant throughout the entire process. Combined with the heat preservation effect of the outer protective cotton 215, it continuously and efficiently prevents the water supply and drainage pipe body 1 from freezing, ensuring a stable and reliable effect.
[0035] In summary, the water supply and drainage pipe body of this technical solution is protected against freezing by an antifreeze component. The antifreeze component includes a water tank, one side of which is connected to the first end of the input pipe, and the other side of which is connected to the second end of the output pipe. Inside the tank is a set of heating blocks, and a microcontroller is mounted on its outer surface. A pump is also included, with its input end connected to the second end of the input pipe and its output end connected to the first end of the output pipe, and it is electrically connected to the microcontroller. The output pipe is wound around the water supply and drainage pipe body and is divided into a front section and a rear section. The rear section of the output pipe also has a secondary heating component electrically connected to the microcontroller. In this configuration, the coordinated use of the antifreeze component and the water supply and drainage pipe body significantly improves the stability of the antifreeze effect, effectively prevents the medium inside the pipe from freezing, and ensures the normal operation of the water supply and drainage system.
[0036] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.
[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A water supply and drainage pipe antifreeze device, comprising a water supply and drainage pipe body (1), characterized in that, The water supply and drainage pipe body (1) is protected from freezing by an antifreeze component (2), which includes: A water tank (201) has its lower side connected to the first end of an input pipe (208) and its upper side connected to the second end of an output pipe (209). It contains a set of heating blocks (203) and has a microcontroller (213) mounted on its outer surface. The pump (207) has its input end connected to the second end of the input tube (208), its output end connected to the first end of the output tube (209), and is electrically connected to the microcontroller (213). The output pipe (209) is wound around the water supply and drainage pipe body (1). The output pipe (209) wound around the water supply and drainage pipe body (1) is divided into a front half and a rear half. The rear half of the output pipe (209) is also provided with a secondary heating component electrically connected to the microcontroller (213) to ensure the stability of the antifreeze effect.
2. The water pipe freeze-proof apparatus according to claim 1, wherein The secondary heating component includes: A temperature monitor (210), installed on the output pipe (209), has its monitoring head inserted into the output pipe (209) to monitor the water temperature in the latter half of the output pipe (209); and Heating wires (212), a plurality of heating wires (212) are evenly spaced along the circumference of the output tube (209), and the heating end of the heating wires (212) extends into the output tube (209) to perform secondary heating on the water in the latter half of the output tube (209).
3. The water pipe freeze-proof apparatus according to claim 2, wherein The heating wire (212) is fixed to the peripheral wall of the output tube (209) by an insulating mounting block (211) to avoid direct contact with the peripheral wall of the output tube (209).
4. The drain frost protection apparatus according to claim 1, wherein The water tank (201) is also equipped with a temperature detector (204) electrically connected to the microcontroller (213) for detecting the water temperature in the water tank (201).
5. The water pipe freeze-proof apparatus according to claim 1, wherein The outer surface of the water tank (201) is also equipped with a control panel (214) that is electrically connected to the microcontroller (213).
6. The drain frost protection apparatus according to claim 1, wherein The outer surface of the water tank (201) is also equipped with a temperature display (205) that is electrically connected to the microcontroller (213).
7. The drain frost protection apparatus according to claim 1, wherein The outer side of the water supply and drainage pipe body (1) is also wrapped with protective cotton (215).
8. The antifreeze device for water supply and drainage pipes according to claim 1, characterized in that, The water tank (201) is also provided with a water inlet (202).
9. The water pipe freeze-proof apparatus according to claim 1, wherein The water tank (201) is also provided with a protective frame (206) on its outer periphery, and the pump (207) is installed on the protective frame (206).