Frost-proofed and insulated water meter well

Abstract

The utility model discloses a kind of anti-freezing heat preservation water meter wells, belong to water meter well anti-freezing technical field, including civil pool body, the inner wall of the civil pool body is fixed with heat preservation partition, the inside of the civil pool body is around water meter installation area and its pipeline layout contains heating medium's coil pipe, electric heating structure is equipped in the coil pipe;The solar panel is inlaid in the well lid upper layer, and the solar panel is connected by circuit the power module arranged in civil pool body, and the power module connects the electric heating structure in the coil pipe.The utility model provides a kind of anti-freezing heat preservation water meter well, and through solar energy heating and composite heat preservation structure synergistic effect to heating medium, realize the anti-freezing heat preservation of water meter well and reduce energy consumption.

Description

Technical Field

[0001] This utility model belongs to the field of water meter well technology, specifically relating to a freeze-proof and heat-insulating water meter well. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Water meter wells are water supply facilities directly related to users' water usage. The main function of water meter wells is to store water meters and control valves. Water meters are instruments that measure water flow, mostly cumulative water flow. They are generally divided into two types: volumetric water meters and velocity water meters. In high-altitude, frigid regions or cold northern climates where temperatures are low year-round, the water inside the water meter cannot be completely drained after use. At this time, the water inside the meter will cool and freeze. When the water freezes, its volume increases, which can cause the water meter to burst or be damaged.

[0004] Existing water meter wells in cold regions have the following drawbacks:

[0005] First, ordinary concrete pools do not have an active heating function and rely solely on the natural insulation of the soil layer. When the temperature drops below -20℃, the temperature inside the well can drop to the freezing point, causing the water meter to freeze and crack. The well cover is mostly made of cast iron or concrete, which has strong thermal conductivity, exacerbating the heat loss inside the well.

[0006] Secondly, there is a method of heating and thawing traditional water meter wells by wrapping the water meter with an electric heating belt. This method requires a continuous external power supply, and the electric heating belt has the risk of leakage. It is also prone to aging and failure after long-term operation.

[0007] Third, there is a lack of passive insulation materials. The insulation efficiency of a single insulation layer (such as polystyrene foam) decreases at low temperatures, and the inner wall of the water meter well lacks reflective insulation design, resulting in serious heat loss from the well through the pool wall. Utility Model Content

[0008] The purpose of this invention is to provide a freeze-proof and heat-insulating water meter well. By using solar energy to heat the heating medium and the composite insulation structure in synergy, the water meter well can be freeze-proofed and heat-insulated while reducing energy consumption.

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0010] In a first aspect, an embodiment of this utility model provides a frost-proof and heat-insulating water meter well, including a civil engineering pool body. The inner wall of the civil engineering pool body is fixed with a heat-insulating partition. The interior of the civil engineering pool body is surrounded by a coil containing a heating medium around the water meter installation area and its pipelines. An electric heating structure is provided inside the coil. A solar panel is embedded in the upper layer of the well cover. The solar panel is connected to a power module installed in the civil engineering pool body through an electrical circuit. The power module is connected to the electric heating structure inside the coil through an electrical circuit.

[0011] As a further technical solution, the upper surface of the solar panel is covered with a tempered glass layer.

[0012] As a further technical solution, the manhole cover is made of transparent resin material.

[0013] As a further technical solution, a temperature control module is provided inside the civil engineering pool. The temperature control module is communicatively connected to the power supply module. The temperature control module is used to detect the temperature inside the civil engineering pool and dynamically control the power supply module.

[0014] As a further technical solution, the coil is installed on the side wall inside the civil engineering pool body, and near the water meter installation area and its pipelines at the bottom of the civil engineering pool body; the electric heating structure is set as a heating resistor, which is arranged axially inside the coil.

[0015] As a further technical solution, the thermal insulation partition is composed of a polyurethane foam layer and an aluminum foil reflective layer.

[0016] As a further technical solution, the coil is arranged in a spiral shape around the periphery of the water meter installation area.

[0017] As a further technical solution, the manhole cover is provided with an annular sealing strip at the edge of the civil engineering pool.

[0018] As a further technical solution, the heating medium is an aqueous solution of ethylene glycol, an aqueous solution of calcium chloride, or an aqueous solution of glycerol.

[0019] As a further technical solution, the bottom of the civil engineering pool is provided with a drainage slope, the bottom of the drainage slope is provided with a drain outlet, and a filter screen is provided at the drain outlet.

[0020] The beneficial effects of the above-described embodiments of this utility model are as follows:

[0021] This utility model provides a frost-resistant and heat-insulating water meter well that systematically solves the problems of freezing and cracking risk and energy consumption in water meter wells in high-altitude and cold regions by integrating a synergistic mechanism of solar power supply, active heating and passive insulation. Specifically:

[0022] By setting up a solar-driven off-grid power supply system, the manhole cover is equipped with solar panels and power modules to form an independent power supply system. It does not require external grid connection, completely eliminating the dependence of traditional electric heating belts on mains power, eliminating the risk of leakage and long-term power supply costs. The tempered glass layer on the surface of the solar panel improves impact resistance and self-cleaning ability, ensuring continuous energy collection under extreme weather conditions and maintaining stable operation of the system throughout the year.

[0023] Meanwhile, the temperature control module can also dynamically monitor the temperature inside the well, accurately start and stop the power heating structure, start heating and antifreeze when the temperature is low, and automatically cut off power to save energy when the temperature is high, thus avoiding energy waste. The thermal management strategy is adapted to the fluctuation of solar power supply, giving priority to natural sunlight for heating, and only starting electric heating when necessary, thereby maximizing energy utilization efficiency.

[0024] With a fully covered active heating layer and spiral coils surrounding the water meter and pipelines, the flow path of the heating medium is extended, achieving uniform heat radiation around the water meter and eliminating localized low-temperature blind spots. Embedded axial heating resistors within the coils directly heat antifreeze heating media such as ethylene glycol, forming a safe and efficient heat transfer chain. A polyurethane foam layer blocks heat conduction from the pool wall to the soil, while an aluminum foil reflective layer suppresses infrared heat radiation within the well. This dual mechanism significantly reduces the rate of heat loss. The insulation partition also functions as a moisture barrier, preventing groundwater vapor penetration and avoiding insulation performance degradation due to humidity, ensuring long-term effectiveness.

[0025] The ring-shaped sealing strip on the edge of the manhole cover blocks the infiltration of cold air and the escape of hot air, while preventing rain and snow from flowing back in and maintaining a dry environment inside the manhole. The bottom drainage slope guides condensate to the drain outlet under the protection of the filter screen, quickly draining accumulated water, eliminating the risk of frost heave, and reducing the corrosion of metal parts. Attached Figure Description

[0026] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0027] Figure 1 This is a schematic diagram of the overall structure of an antifreeze and heat-insulating water meter well provided in Embodiment 1 of this utility model.

[0028] The diagram is for illustrative purposes only.

[0029] The components include: 1. Ground; 2. Solar panel; 3. Coil; 4. Water meter valve; 5. Manhole cover; 6. Insulation board; 7. Power module; 8. Temperature control module. Detailed Implementation

[0030] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0031] In a typical embodiment of this utility model, such as Figure 1 As shown, a frost-proof and heat-insulating water meter well is provided, including a civil engineering pool body. The inner wall of the civil engineering pool body is fixed with a heat-insulating partition 6. The interior of the civil engineering pool body is arranged around the water meter installation area with a coil 3 containing a heating medium. The coil 3 is equipped with an electric heating structure. The upper layer of the well cover 5 is embedded with a solar panel 2. The solar panel 2 is connected to a power module 7 installed in the civil engineering pool body through an electrical circuit. The power module 7 is connected to the electric heating structure in the coil 3 through an electrical circuit.

[0032] With this configuration, the manhole cover 5 is flush with the ground 1 for good passage, and the coil 3 is placed near the water meter valve 4 inside the water meter well for effective insulation, achieving a combination of active antifreeze and passive insulation. The electric heating structure inside the coil 3 directly radiates heat to the water meter and pipeline, while the insulation partition 6 inhibits heat loss to the soil. The combination of the two significantly improves the thermal stability inside the well and avoids the failure problem of traditional single insulation layers under extreme low temperatures.

[0033] Energy self-sufficiency: Solar panel 2 and power module 7 form an off-grid power supply system, eliminating the need for external power grid connection and completely solving the maintenance costs and leakage risks associated with electric heating belts relying on external power grid connection.

[0034] Optimized heat transfer efficiency: The coil is arranged around the water meter installation area to ensure that heat is evenly distributed along the water meter pipeline, avoiding local overheating or heating blind spots, and reducing the probability of the water meter freezing and cracking.

[0035] Furthermore, the upper surface of the solar panel 2 is covered with a tempered glass layer.

[0036] This design enhances physical protection against external impacts such as hail and gravel, preventing damage to the solar panel 2; it also improves self-cleaning capabilities, making the surface smooth and less prone to dust accumulation, allowing it to maintain light transmittance simply by being washed away by rain and snow, thus reducing manual maintenance; and it optimizes heat transfer efficiency, ensuring efficient penetration of solar radiation while suppressing infrared radiation heat dissipation from the collector panel.

[0037] Furthermore, the manhole cover 5 is made of transparent resin material.

[0038] This design achieves complementary light and heat, allowing the resin material to transmit some sunlight into the well, helping to increase the temperature at the bottom of the well and reducing the heat load on the coil 3; it also achieves thermal insulation and sealing, as the low thermal conductivity of the resin blocks heat exchange between the inside and outside of the well, reducing heat loss compared to metal or concrete manhole covers 5; at the same time, it has good corrosion resistance, resisting acid rain and de-icing agent corrosion, and extending the life of the manhole cover 5.

[0039] Furthermore, a temperature control module 8 is provided inside the civil engineering pool. The temperature control module 8 is communicatively connected to the power supply module 7. The temperature control module 8 is used to detect the temperature inside the civil engineering pool and dynamically control the power supply module 7.

[0040] Understandably, the temperature inside the well does not need to be too high; it is only necessary to ensure that the facilities inside the well do not freeze or crack. When the temperature control module 8 detects that the temperature inside the well has reached the set temperature, if the temperature is low, it controls the power module 7 to turn on to supply power to the electric heating structure, thereby heating the heating medium and warming the environment inside the well. When the temperature control module 8 detects that the temperature inside the well has reached the set temperature, if the temperature is high, it controls the power module 7 to turn off and stop supplying power to the electric heating structure. In addition, the electricity generated by the solar panel during the day can be stored in the power module 7 for use at night.

[0041] This setup starts and stops the heating based on the real-time temperature inside the well, avoiding energy waste caused by continuous heating. It is especially suitable for the instability of solar power supply, achieving overheat protection. When the well temperature exceeds the safety threshold, the power is automatically cut off to prevent the heating medium from vaporizing or the equipment from being damaged, thus extending the service life of the system, reducing the ineffective operating time of the electric heating structure, and reducing the aging rate of the resistor.

[0042] Furthermore, the coil 3 is installed on the side wall inside the civil engineering pool body, and near the water meter installation area and its pipelines at the bottom of the civil engineering pool body; the electric heating structure is set as a heating resistor, which is installed axially inside the coil 3.

[0043] This configuration achieves three-dimensional thermal field coverage. The side wall coil 3 blocks the intrusion of cold soil, while the bottom coil 3 directly protects the water meter and pipelines, forming a three-dimensional anti-freeze barrier and improving heating efficiency. The axial heating resistor ensures that heat is evenly released along the entire length of the coil 3, preventing local overheating and carbonization of the medium. Furthermore, a safety isolation design is implemented, with the heating resistor enclosed inside the coil 3 to eliminate the risk of water and electricity contact, meeting outdoor electrical safety standards.

[0044] Furthermore, the thermal insulation partition 6 is composed of a polyurethane foam layer and an aluminum foil reflective layer.

[0045] This design achieves heat conduction suppression, with the closed-cell structure of the polyurethane foam layer locking in air and significantly reducing the heat transfer rate from the pool wall to the soil; it also achieves heat radiation regulation, with the aluminum foil layer reflecting the infrared radiation from the water meter and coil 3, trapping heat inside the well; and it further strengthens moisture protection, with the composite layer isolating groundwater vapor penetration and preventing the insulation layer from degrading.

[0046] Furthermore, the coil 3 is arranged in a spiral shape around the periphery of the water meter installation area.

[0047] This design extends the flow distance of the medium via the spiral path, allowing heat to be released evenly around the water surface and improving heat dissipation and insulation.

[0048] Furthermore, the manhole cover 5 is provided with an annular sealing strip at the edge of the civil engineering pool body.

[0049] This design allows the elastic rubber strip to fill the gap between the manhole cover 5 and the pool body, blocking the infiltration of cold air and the escape of hot air; preventing rainwater and snow water from flowing back in and keeping the inside of the manhole dry; reducing shock and noise, buffering the impact of opening and closing the manhole cover 5, and reducing component wear.

[0050] Furthermore, the heating medium is an aqueous solution of ethylene glycol, an aqueous solution of calcium chloride, or an aqueous solution of glycerol.

[0051] This configuration achieves low-temperature antifreeze, with the freezing point of ethylene glycol aqueous solution, calcium chloride aqueous solution, or glycerol aqueous solution falling below -35℃, covering extreme cold conditions. It also ensures flowability, with low viscosity characteristics suitable for thermosiphon natural circulation, avoiding circulation stagnation due to medium viscosity. Understandably, a suitable heating medium can be selected based on actual conditions.

[0052] Furthermore, the bottom of the civil engineering pool is provided with a drainage slope, and a drain outlet is provided at the bottom of the drainage slope, with a filter screen installed at the drain outlet.

[0053] This design achieves active moisture prevention. The slope guides condensate and seepage water to the drain outlet, keeping the bottom of the well dry and reducing moisture contact with the metal parts of the water surface to prevent freezing or corrosion. The filter screen blocks mud, sand, and insects from entering the drain pipe, ensuring smooth drainage.

[0054] This utility model provides a frost-resistant and heat-insulating water meter well that systematically solves the problems of freezing and cracking risk and energy consumption in water meter wells in high-altitude and cold regions by integrating a synergistic mechanism of solar power supply, active heating and passive insulation. Specifically:

[0055] By setting up a solar-driven off-grid power supply system, the manhole cover 5 is embedded with solar panels 2 and power modules 7 to form an independent power supply system. It does not require external grid connection, completely getting rid of the dependence of traditional electric heating belts on mains power, eliminating the risk of leakage and long-term power supply costs. The tempered glass layer on the surface of the solar panel 2 improves impact resistance and self-cleaning ability, ensuring continuous energy collection under extreme weather conditions and maintaining stable operation of the system throughout the year.

[0056] Meanwhile, the temperature control module 8 can also dynamically monitor the temperature inside the well, accurately start and stop the power heating structure, start heating and antifreeze when the temperature is low, and automatically cut off power to save energy when the temperature is high, thus avoiding energy waste. The thermal management strategy is adapted to the fluctuation of solar power supply, giving priority to natural light heating and only starting electric heating when necessary, thereby maximizing energy utilization efficiency.

[0057] With a fully covered active heating layer, the spiral coil 3 surrounds the water meter and pipelines, extending the flow path of the heating medium and achieving uniform heat radiation along the circumference of the water meter. This eliminates localized low-temperature blind spots. The coil 3 contains an embedded axial heating resistor that directly heats antifreeze heating media such as ethylene glycol, forming a safe and efficient heat transfer chain. The polyurethane foam layer blocks heat conduction from the pool wall to the soil, and the aluminum foil reflective layer suppresses infrared heat radiation within the well. This dual mechanism significantly reduces the rate of heat loss. The insulation partition 6 also has a moisture-proof function, preventing groundwater vapor penetration and avoiding insulation performance degradation due to humidity, ensuring long-term effectiveness.

[0058] The manhole cover has a ring-shaped sealing strip on the edge to block cold air from seeping in and hot air from escaping, while also preventing rain and snow from flowing back in and maintaining a dry environment inside the manhole. The bottom drainage slope guides condensate to the drain outlet under the protection of the filter screen, quickly draining accumulated water, eliminating the risk of frost heave, and reducing the corrosion of metal parts.

[0059] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A frost-resistant and heat-insulating water meter well, characterized in that, The system includes a civil engineering pool body, the inner wall of which is fixed with an insulation partition. The interior of the civil engineering pool body is surrounded by a water meter installation area and its pipelines, and a coil containing a heating medium is installed inside the coil. An electric heating structure is installed inside the coil. A solar panel is embedded in the upper layer of the manhole cover. The solar panel is connected to a power module installed inside the civil engineering pool body through an electrical circuit. The power module is connected to the electric heating structure inside the coil through an electrical circuit.

2. The antifreeze and heat-insulating water meter well as described in claim 1, characterized in that, The upper surface of the solar panel is covered with a tempered glass layer.

3. The antifreeze and heat-insulating water meter well as described in claim 1, characterized in that, The manhole cover is made of transparent resin material.

4. The antifreeze and heat-insulating water meter well as described in claim 1, characterized in that, The civil engineering pool is equipped with a temperature control module, which is communicatively connected to the power supply module. The temperature control module is used to detect the temperature inside the civil engineering pool and dynamically control the power supply module.

5. The antifreeze and heat-insulating water meter well as described in claim 1, characterized in that, The coil is installed on the side wall inside the civil engineering pool body, and near the water meter installation area and its pipelines at the bottom of the civil engineering pool body; the electric heating structure is a heating resistor, which is arranged axially inside the coil.

6. The antifreeze and heat-insulating water meter well as described in claim 1, characterized in that, The thermal insulation partition is composed of a polyurethane foam layer and an aluminum foil reflective layer.

7. The antifreeze and heat-insulating water meter well as described in claim 1, characterized in that, The coil is arranged in a spiral shape around the perimeter of the water meter installation area.

8. The antifreeze and heat-insulating water meter well as described in claim 1, characterized in that, The manhole cover is installed on the edge of the civil engineering pool and is equipped with an annular sealing strip.

9. The antifreeze and heat-insulating water meter well as described in claim 1, characterized in that, The heating medium is an aqueous solution of ethylene glycol, an aqueous solution of calcium chloride, or an aqueous solution of glycerol.

10. A freeze-proof and heat-insulating water meter well as described in claim 1, characterized in that, The bottom of the civil engineering pool is provided with a drainage slope, and a drain outlet is provided at the bottom of the drainage slope, with a filter screen installed at the drain outlet.

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