Frost protected water delivery pipe and frost protected water delivery system

Abstract

This application relates to the field of water supply system technology, specifically to an antifreeze water supply pipe and an antifreeze water supply system. The antifreeze water supply pipe includes a protective pipe and a delivery pipe with a heating wire on its outer wall. The delivery pipe is used for water supply, and the heating wire is used for heating the delivery pipe. The protective pipe is sleeved on the delivery pipe, forming a heat storage chamber in the gap between them, and the heat storage chamber is filled with a heat storage layer. The antifreeze water supply pipe provided by this application heats the delivery pipe through the heating wire, and the heat storage layer provides insulation and continuous heating for the delivery pipe. The protective pipe ensures that the heat storage layer remains in close contact with the delivery pipe and also protects the delivery pipe, reducing damage to it.

Description

Technical Field

[0001] This application relates to the field of water supply system technology, and more specifically, to antifreeze water supply pipes and antifreeze water supply systems. Background Technology

[0002] In high-altitude, cold regions, the water supply for drilling rigs has always been a major challenge during winter drilling, especially for tunnel drilling. Water needs to be pumped from the foot of the mountain to the summit, but the water freezes during this process, sometimes even bursting the pipes, and removing the ice is difficult. Even when daytime temperatures are higher and pumping is normal, the pumping pipes still need to be emptied before evening to prevent freezing. The water supply problem for drilling rigs significantly impacts the exploration schedule. Utility Model Content

[0003] The purpose of this application is to provide an antifreeze water pipe and an antifreeze water supply system, which can prevent water from freezing during the water supply process to ensure construction water supply.

[0004] To achieve the above objectives, in a first aspect, this utility model provides an antifreeze water pipe, comprising:

[0005] A conveying pipe with a heating wire on its outer wall is used to convey water, and the heating wire is used to heat the conveying pipe.

[0006] A protective tube is sleeved on the conveying pipe, forming a heat storage chamber in the gap between the two, and the heat storage chamber is filled with a heat storage layer.

[0007] In an optional embodiment, the inner wall of one end of the protective tube is sealed to the outer wall of one end of the conveying tube, and the inner wall of the other end of the protective tube is sealed to the outer wall of the other end of the conveying tube.

[0008] In an optional embodiment, the heat storage layer is alumina phase change particles.

[0009] In an alternative embodiment, the heating wire is spirally wound around the outer wall of the delivery tube.

[0010] In an optional embodiment, at least two heating wires are provided along the extension direction of the conveying pipe, and the at least two heating wires are equidistantly spaced around the circumference of the conveying pipe.

[0011] Secondly, this utility model provides an antifreeze water supply system, comprising:

[0012] The antifreeze water pipe as described in any of the foregoing embodiments;

[0013] A water supply container, which is used to store water and is connected to one end of the delivery pipe of the antifreeze water supply pipe;

[0014] A water pump is used to pump water from the water supply container into the delivery pipe.

[0015] In an optional embodiment, a heater is also included for heating the water in the water supply container.

[0016] In an optional embodiment, the outer wall of the water supply container is provided with a heat-insulating protective layer.

[0017] In an optional embodiment, an energy harvesting device is also included, which is electrically connected to the heater and supplies power to the heater.

[0018] In an optional embodiment, a temperature sensor is also included. The temperature sensor is disposed in the water inside the water supply container and electrically connected to the heater. The temperature sensor is used to obtain the water temperature inside the water supply container and to activate the heater when the water temperature is lower than a first preset temperature.

[0019] The antifreeze water pipe provided in the embodiments of this application heats the delivery pipe with a heating wire, and a heat storage layer is provided to keep the delivery pipe warm and continuously heat it. The protective pipe can keep the heat storage layer in contact with the delivery pipe and can also protect the delivery pipe and reduce damage to the delivery pipe.

[0020] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of one embodiment of the antifreeze water supply system provided in this application;

[0023] Figure 2 A partial cross-sectional view of one embodiment of the antifreeze water pipe provided in this application;

[0024] Figure 3 This is a circuit connection diagram of one embodiment of the antifreeze water supply system provided in this application.

[0025] icon:

[0026] 100-Conveying pipe; 200-Heating wire; 300-Heat storage layer; 400-Protective pipe; 500-Water supply container; 600-Heater; 700-Temperature sensor. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In a first aspect, embodiments of this application provide an antifreeze water supply pipe, including a protective pipe 400 and a delivery pipe 100 with a heating wire 200 on its outer wall.

[0031] like Figure 1 and Figure 2 As shown, the delivery pipe 100 is used to deliver water to the construction site.

[0032] Heating wire 200 is used to heat delivery pipe 100.

[0033] When the heating wire 200 is powered on, it will generate heat, which will heat the delivery pipe 100. The heat from the delivery pipe 100 will be conducted to the water inside the pipe, thereby heating the water. This effectively prevents the water from freezing due to low temperature during transportation, ensuring that the water can be delivered smoothly to the construction site and meet the water demand for construction.

[0034] like Figure 2As shown, the protective tube 400 is sleeved on the conveying pipe 100. There is a gap between the inner wall of the protective tube 400 and the outer wall of the conveying pipe 100, which forms a heat storage chamber. The heat storage chamber is filled with a heat storage layer 300. The heat storage layer 300 is used for heat storage. When the heating wire 200 heats up, the heat storage layer 300 absorbs heat, which not only keeps the conveying pipe 100 warm and reduces heat loss, but also allows the heat storage layer 300 to continue to release heat when the heating wire 200 is de-energized, continuing to heat the conveying pipe 100. This further extends the heating time, enhances the antifreeze effect, and reduces the risk of water freezing due to power failure.

[0035] The heat storage layer 300 enables the storage and release of heat. When the heating wire 200 is energized, the heat storage layer 300 absorbs and stores excess heat; when the power is off, it releases the stored heat, reducing the frequency of starting and stopping the heating wire 200, lowering energy consumption, improving energy efficiency, and meeting the requirements of energy conservation and environmental protection.

[0036] For example, the heat storage layer 300 is made of alumina phase change particles, silica gel, or zeolite. When the heat storage layer 300 is filled into the heat storage chamber, it can be vibrated and compacted to ensure that the particles are evenly distributed and do not clog.

[0037] The protective tube 400 is fitted onto the conveying pipe 100, ensuring a tight fit between the heat storage layer 300 and the conveying pipe 100. This guarantees that the heat storage layer 300 fully performs its heat storage and insulation functions, improves heat transfer efficiency, and ensures stable and reliable antifreeze performance. The protective tube 400 provides an additional protective layer for the conveying pipe 100, reducing damage to the conveying pipe 100 from external factors (such as collisions, scratches, corrosion, etc.), extending the service life of the conveying pipe 100, and reducing maintenance costs and replacement frequency.

[0038] For example, the conveying pipe 100 is a DN40 polyethylene pipe with a wall thickness of 4mm and a pressure resistance of ≥1.6MPa. One end of the conveying pipe 100 is connected to a water source, and the other end of the conveying pipe 100 is located at the construction position.

[0039] For example, the protective tube 400 is made of black weather-resistant rubber tube with an outer diameter of 65mm (containing 8% carbon black anti-UV additive), a wall thickness of 4mm, cold resistance ≤-50℃, and a surface with a 1.5mm deep anti-slip texture (friction coefficient μ≥0.15).

[0040] In one embodiment, the inner wall of one end of the protective tube 400 is sealed to the outer wall of one end of the conveying tube 100, and the inner wall of the other end of the protective tube 400 is sealed to the outer wall of the other end of the conveying tube 100.

[0041] After the heating wire 200 is de-energized, the heat storage layer 300 can continuously release heat for more than two hours (in an environment of -30℃) and maintain the water temperature at least 5℃. This characteristic ensures that the water in the antifreeze water pipe will not freeze for a certain period of time in the event of a temporary power outage or heating equipment failure, providing a more reliable water source guarantee for construction.

[0042] When the water source temperature in the water supply pipe is around 10℃, even in extreme environments like -30℃, the water temperature in the pipe can still be maintained above 5℃. This demonstrates that the antifreeze water supply pipe has strong antifreeze capabilities, can adapt to harsh low-temperature construction environments, and greatly expands its application range.

[0043] Compared to traditional insulation, this antifreeze water pipe reduces heat loss by 40%. This means that under the same heating conditions, the pipe can maintain the water temperature more effectively, reducing energy waste, improving energy efficiency, and lowering construction costs.

[0044] Because the overall temperature of the antifreeze water supply pipe is low, the protective pipe 400 will not expand excessively. This ensures the stability of the sealing structure between the protective pipe 400 and the supply pipe 100, avoids problems such as seal failure and structural damage caused by the expansion of the protective pipe 400, and extends the service life of the antifreeze water supply pipe.

[0045] For example, a first rubber ring is bonded to the outer wall of one end of the conveying pipe 100, and the outer wall of the first rubber ring is bonded to the inner wall of one end of the protective pipe 400; a second rubber ring is bonded to the outer wall of the other end of the conveying pipe 100, and the outer wall of the second rubber ring is bonded to the inner wall of the other end of the protective pipe 400. Thus, by sealing the two ends of the heat storage chamber with the first rubber ring and the second rubber ring, the loss of the filling material of the heat storage layer 300 is prevented, and the heat loss of the heat storage layer 300 is also reduced.

[0046] like Figure 2 and Figure 3 As shown, in one embodiment, the heating wire 200 is spirally wound around the outer wall of the delivery tube 100.

[0047] For example, the heating wire 200 is a carbon fiber heating wire. When the heating wire 200 is wound onto the delivery tube 100, the pitch is 25mm, the diameter of the carbon fiber heating wire is 3mm, the working voltage is 24V, the power density is 15W / m, and it is connected to the power supply through a quick-connect connector.

[0048] For example, the heating wire 200 is directly wound around the delivery tube 100 without the need for adhesive. However, in another embodiment, after the heating wire 200 is wound around the delivery tube 100, adhesive is applied to the outside to make the heating wire 200 adhere to the delivery tube 100.

[0049] The heating wire 200 is spirally wound around the outer wall of the delivery pipe 100. This arrangement allows the heating wire 200 to be distributed relatively evenly around the delivery pipe 100. When electricity is applied, heat can be transferred more evenly to the delivery pipe 100, thereby heating the water inside the pipe uniformly. This avoids local overheating or undercooling, improves the heating effect and water temperature stability, and effectively prevents the water from freezing due to localized low temperatures.

[0050] In one embodiment, at least two heating wires 200 are provided along the extension direction of the conveying pipe 100, and the at least two heating wires 200 are equidistantly spaced around the conveying pipe 100.

[0051] For example, two heating wires 200 are provided. In another embodiment, three heating wires 200 are provided. Of course, in some other embodiments, the number of heating wires 200 may also be provided, such as four, five, or six.

[0052] Secondly, embodiments of this application provide an antifreeze water supply system, such as... Figure 1 As shown, the antifreeze water supply system includes a water supply container 500, a water pump, and an antifreeze water supply pipe as described in any of the above embodiments.

[0053] The water supply container 500 is used to store water and is connected to one end of the delivery pipe 100 of the antifreeze water supply pipe.

[0054] The water pump is used to pump water from the water supply container 500 into the delivery pipe 100.

[0055] The water supply container 500 is, for example, a water tank. However, in other embodiments, the water supply container 500 is, for example, a water storage tank.

[0056] This system integrates a water supply container 500, a water pump, and an antifreeze water delivery pipe, forming a complete water delivery chain. The water supply container 500 stores water, providing a stable water source for the entire system; the water pump smoothly pumps the water from the water supply container 500 into the delivery pipe 100; and the antifreeze water delivery pipe ensures that the water does not freeze due to low temperatures during transportation, thus guaranteeing a stable and continuous supply of water from the storage source to construction sites and other water-using locations, meeting the actual water demand in use.

[0057] To further ensure that the water does not freeze, such as Figure 3 As shown, in one embodiment, the antifreeze water supply system further includes a heater 600 for heating the water in the water supply container 500. The heater 600 is configured to ensure that the water temperature in the water supply container 500 is greater than or equal to 10°C.

[0058] For example, the heater 600 includes, but is not limited to, resistance heating devices, infrared heating devices, fuel heating devices, etc. When the heater 600 is a resistance heating device and / or an infrared heating device, the heater 600 is powered by an electric power source. When the heater 600 is a fuel heating device, it is powered by fuel.

[0059] In one embodiment, the outer wall of the water supply container 500 is provided with a thermal insulation layer. The thermal insulation layer is, for example, a polyurethane foam layer (50 mm thick, thermal conductivity ≤ 0.025 W / (m·K)). In other embodiments, the thermal insulation layer is a sponge layer. In yet another embodiment, the thermal insulation layer is a silicone layer.

[0060] Unlike the heater 600 in the above embodiments which is powered by electricity or fuel, in one embodiment, the antifreeze water supply system also includes an energy harvesting device, which is electrically connected to the heater 600 and supplies power to the heater 600.

[0061] The energy harvesting device is capable of acquiring energy. Exemplarily, the energy harvesting device is a solar panel and / or a wind power generation device. However, in other embodiments, the energy harvesting device and the power source jointly power the heater 600.

[0062] like Figure 3 As shown, in one embodiment, the antifreeze water supply system further includes a temperature sensor 700, which is disposed in the water in the water supply container 500 and electrically connected to the heater 600. The temperature sensor 700 is used to obtain the water temperature in the water supply container 500 and to activate the heater 600 when the water temperature is lower than a first preset temperature.

[0063] The first preset temperature is a discrete value or a range value, for example, the first preset temperature is 10℃, 15℃ or 18℃. For another example, due to measurement errors and uneven distribution of water temperature, the temperature measured by the temperature sensor 700 is higher than the actual water temperature in the water supply container 500. Therefore, the first preset temperature can be set to a range of 10℃ to 15℃.

[0064] In another embodiment, the heater 600 shuts off when the temperature measured by the temperature sensor 700 exceeds a second preset value. This prevents the heater 600 from continuing to operate when the water temperature is already sufficiently high, reducing unnecessary energy consumption and improving energy efficiency. For example, if the ambient temperature rises and the water temperature naturally increases, the heater 600 can stop operating promptly. Exemplarily, the second preset temperature is greater than the first preset temperature, and the second preset temperature is a discrete value or a range value. For example, the second preset temperature is 20°C, 22°C, or 25°C. Furthermore, the second preset temperature can also be set to a range of 20°C to 25°C.

[0065] In this application, a temperature sensor 700 is installed in the water within the water supply container 500, enabling real-time and accurate acquisition of water temperature information. When the water temperature drops below a first preset temperature, the heater 600 is immediately activated. This timely response mechanism prevents the water from freezing due to excessively low temperatures, avoiding problems such as pipe blockage, rupture, and damage to the water supply container 500 caused by freezing, thus ensuring the normal operation of the entire antifreeze water supply system in low-temperature environments.

[0066] Setting the first and second preset temperatures as range values ​​takes into account potential measurement errors in the temperature sensor 700 and uneven water temperature distribution within the water supply container 500. Due to measurement errors and uneven water temperature, the temperature measured by the sensor may deviate from the actual water temperature. Setting range values ​​prevents the heater 600 from frequently starting and stopping or erroneously starting due to measurement errors, making the heating process more stable and reasonable. For example, if the sensor shows a water temperature slightly lower than the lower limit of the first preset temperature due to measurement errors, but the actual water temperature is still acceptable, the heater 600 may not start if the preset temperature is a range value, reducing unnecessary energy consumption and equipment wear.

[0067] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0068] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An antifreeze water pipe, characterized in that, include: A delivery pipe (100) with a heating wire (200) on its outer wall is used to deliver water, and the heating wire (200) is used to heat the delivery pipe (100). A protective tube (400) is sleeved on the conveying pipe (100) and forms a heat storage chamber in the gap between the two, and the heat storage chamber is filled with a heat storage layer (300).

2. The antifreeze water pipe according to claim 1, characterized in that, The inner wall of one end of the protective tube (400) is sealed to the outer wall of one end of the conveying tube (100), and the inner wall of the other end of the protective tube (400) is sealed to the outer wall of the other end of the conveying tube (100).

3. The antifreeze water pipe according to claim 1, characterized in that, The heat storage layer (300) is composed of alumina phase change particles.

4. The antifreeze water pipe according to claim 1, characterized in that, The heating wire (200) is spirally wound around the outer wall of the delivery pipe (100).

5. The antifreeze water pipe according to claim 1, characterized in that, At least two heating wires (200) are provided along the extension direction of the conveying pipe (100), and the at least two heating wires (200) are equidistantly spaced around the conveying pipe (100).

6. An antifreeze water supply system, characterized in that, include: The antifreeze water pipe as described in any one of claims 1 to 5; A water supply container (500) is used to store water and is connected to one end of the delivery pipe (100) of the antifreeze water supply pipe. A water pump is used to pump water from the water supply container (500) into the delivery pipe (100).

7. The antifreeze water supply system according to claim 6, characterized in that, It also includes a heater (600) for heating the water in the water supply container (500).

8. The antifreeze water supply system according to claim 6, characterized in that, The outer wall of the water supply container (500) is provided with a heat insulation protective layer.

9. The antifreeze water supply system according to claim 7, characterized in that, It also includes an energy harvesting device that is electrically connected to the heater (600) and supplies power to the heater (600).

10. The antifreeze water supply system according to claim 7, characterized in that, It also includes a temperature sensor (700), which is placed in the water in the water supply container (500) and electrically connected to the heater (600). The temperature sensor (700) is used to obtain the water temperature in the water supply container (500) and to start the heater (600) when the water temperature is lower than a first preset temperature.

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