Soil body anti-freezing system based on liquid cooling and cold energy consumption

Abstract

The invention relates to the technical field of energy conservation and freezing prevention, in particular to a soil body freezing prevention system for consuming cold energy based on liquid cooling, which comprises a heat insulation cover, a water bag, a heating device and a pressed film. All the water bags are suitable for being laid on the soil surface; any water bag is provided with a water inlet and a water outlet; a sealed placement space is arranged in the heat preservation cover, and the water bag is placed in the placement space; a high-compressibility pressed film is arranged at the bottom of the heat preservation cover; the heating device comprises a plurality of heating pieces, and any water bag is provided with one heating piece. During use, water in the water bag exchanges heat with external cold air, cold energy from the environment is absorbed and consumed, the external cold energy is prevented from being directly transmitted to the soil body, and freezing of the soil body is delayed. The heat preservation cover is used for reducing cold energy transmitted from the external environment to the soil body and effectively slowing down temperature changes. The pressed film fills a gap formed between the heat preservation cover and the soil, and the heat preservation effect of the anti-freezing system is improved.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving and antifreezing technology, and in particular to a soil antifreezing system based on liquid cooling to consume cold energy. Background Art

[0002] In cold regions, the temperature in winter is below zero for a long time, and the problem of soil freezing is very prominent during the construction process. This extreme low temperature environment has brought many challenges to the construction of roads, railways, airports, pipelines, energy facilities and other projects.

[0003] The freezing and thawing process will cause the physical and mechanical properties of soil to change. For example, the freezing and thawing of loose soil will lead to increased density and reduced permeability, while the freezing and thawing of compacted soil will lead to decreased density and increased permeability. In addition, the freezing and thawing process will cause the sorting of soil particles, which will have a significant impact on its shear strength and bearing capacity, thus posing a serious threat to the stability and safe operation of engineering structures in cold regions. Therefore, during the implementation of the project in the negative temperature environment in winter, whether it is foundation engineering or dam engineering, it is required that the soil materials used and the construction work surface are strictly prohibited from freezing.

[0004] Currently, construction in cold regions relies on taking additional protective measures to solve the problem of soil freezing. For example, by covering with insulation materials, preheating the soil or delaying construction until warmer seasons. However, these measures are not only costly and time-consuming, but may not completely avoid the freezing problem. Especially in large-scale, long-term engineering projects, the freezing of on-site soil has a significant impact on the project progress and construction quality. Summary of the invention

[0005] In view of this, the present invention provides a soil antifreeze system based on liquid cooling to consume cold energy, so as to ensure that the soil does not freeze during the engineering construction operation.

[0006] In a first aspect, the present invention provides a soil antifreeze system based on liquid cooling to consume cold energy, comprising:

[0007] A plurality of water bags, all of which are suitable for laying on the soil surface; any of the water bags has a water inlet and a water outlet;

[0008] The heat preservation cover has a sealed placement space inside, and the water bag is placed inside the placement space;

[0009] The heating device comprises a plurality of heating elements, and any of the water bags is provided with a heating element.

[0010] By arranging water bags, heat preservation covers and heating devices, when in use, all the water bags and heat preservation covers are laid together on the surface of the soil, the heat preservation covers wrap all the water bags, and then water is injected into the water bags through the water inlet until all the water bags are filled with water. Since all the water bags are wrapped with heat preservation covers, the heat preservation covers are used to reduce the cold energy of the external environment from being conducted to the soil, effectively slowing down the temperature change, thereby reducing the risk of freezing of the soil, and enabling the soil to maintain a relatively stable temperature in a severe cold environment. By wrapping the heat preservation covers around the water bags, the heat preservation covers are used to reduce the cold energy of the external environment from being conducted to the soil, effectively slowing down the temperature change, thereby reducing the risk of freezing of the soil, and enabling the soil to maintain a relatively stable temperature in a severe cold environment. Since the water in the water bag absorbs and consumes the cold energy from the environment through heat exchange with the external cold air, when the temperature of the water in the water bag is reduced due to heat exchange with the external cold air, the water in the water bag can be heated by the heating element in the heating device to heat the water in the water bag and prevent the water in the water bag from freezing. Therefore, the soil antifreeze system based on liquid cooling to consume cold energy in the present invention can effectively, quickly and continuously ensure that the soil does not freeze, avoiding the impact of soil freezing on project progress and construction quality in large-scale, long-term engineering projects.

[0011] In an optional embodiment, the soil antifreeze system based on liquid cooling to consume cold energy further includes a pressure film, and the pressure film is fixed to the bottom side of the thermal insulation cover.

[0012] The pressing film is arranged at the bottom of the heat preservation cover. Specifically, the pressing film can be an independent component. When in use, the side of the pressing film is temporarily fixed to the side of the heat preservation cover, for example, the side of the pressing film is temporarily fixed to the side of the heat preservation cover by physical bonding. When in use, since the pressing film is at the bottom of all the water bags, water is injected into the water bags through the water inlet until all the water bags are filled with water. The gravity of the water bags will press the pressing film downward. Since the water bags and the pressing film are both made of flexible materials, when there is a gap between the pressing film and the soil surface, the pressing film will be pressed downward by the gravity of the water bags. The pressing film will fit with the soil surface to avoid a gap between the pressing film and the soil surface, thereby preventing the external cold air from entering the gap and affecting the thermal insulation performance of the soil antifreeze system.

[0013] In an optional embodiment, the compression film is configured to undergo elastic compression deformation under the gravity pressure of the water bag.

[0014] By setting the pressing film to be elastic, when in use, water is injected into the water bag through the water inlet until all the water bags are filled with water. The gravity of the water bag will press the pressing film downward. Therefore, the pressing film can be elastically compressed and deformed under the gravity of the water bag, and fit with the soil surface to avoid a gap between the pressing film and the soil surface.

[0015] In an optional embodiment, the placement space inside the heat-insulating cover is divided into a plurality of mutually independent sub-compartments, and a water bag is disposed in any of the sub-compartments.

[0016] In an optional implementation, a plurality of the subintervals are arranged at equal intervals.

[0017] In an optional embodiment, the upper and lower sides of the water bag are respectively fixed to the heat preservation cover.

[0018] By fixing the upper and lower sides of the water bag to the heat preservation cover respectively, it can be known from the above description that a plurality of sub-compartments are formed inside the heat preservation cover, and a water bag is fixed inside each sub-compartment, so that each water bag is fixed separately. Then, the upper and lower sides of the water bag are fixed to the heat preservation cover respectively by bonding to prevent the water bag from moving inside the sub-compartment.

[0019] In an optional embodiment, the water inlet is arranged at the upper end of the water bag and passes through the heat-insulating cover, and the water outlet is arranged at the lower end of the water bag and passes through the heat-insulating cover.

[0020] In an optional embodiment, the heating element is an electric heating resistance wire. In order to increase the heating speed of the water in the water bag, the electric heating resistance wire is arranged in a spiral shape in the present invention, and the spiral electric heating resistance wire wraps the water bag, thereby being able to heat the water in the water bag in the entire circumferential direction of the water bag.

[0021] In an optional embodiment, the water bag includes an innermost water bag liner, a middle layer of a heating element protection lining, and an outermost heating element protection lining, and the heating element is located between the heating element protection lining and the heating element protection outer lining.

[0022] The main function of the heating element protective lining and the heating element protective outer lining is to prevent the heating element from causing thermal damage to the water bag liner and the insulation cover during operation. The material of the heating element protective lining and the heating element protective outer lining can be selected from ceramic fibers with heat shock resistance, low thermal conductivity and high electrical insulation strength.

[0023] In an optional embodiment, the heating device further includes a temperature controller and a temperature sensor, the number of the temperature sensors is the same as the number of the heating elements, and the temperature sensors, the heating elements and the temperature controller are electrically connected.

[0024] The soil antifreeze system based on liquid cooling and consuming cold energy provided by the present invention has the following advantages:

[0025] 1. The present invention provides a soil antifreeze system based on liquid cooling to consume cold energy, comprising a plurality of water bags, a heat preservation cover and a heating device, all of which are suitable for laying on the surface of the soil; any of the water bags has a water inlet and a water outlet; a sealed placement space is provided inside the heat preservation cover, and the water bag is placed inside the placement space; the heating device comprises a plurality of heating elements, and any of the water bags is provided with a heating element.

[0026] This soil antifreeze system based on liquid cooling and consuming cold energy is provided with water bags, heat preservation covers and heating devices. When in use, all the water bags and heat preservation covers are laid on the soil surface together, the heat preservation covers wrap all the water bags, and then water is injected into the water bags through the water inlet until all the water bags are filled with water. The water in the water bags absorbs and consumes cold energy from the environment through heat exchange with the external cold air, reduces the external cold energy directly transferred to the soil, and delays the freezing of the soil. The heat preservation cover is used to reduce the cold energy transferred from the external environment to the soil, and effectively slows down the temperature change. The water in the water bag is heated by the heating element in the heating device to prevent the water in the water bag from freezing due to heat exchange and cooling with the external cold air. Therefore, the soil antifreeze system based on liquid cooling and consuming cold energy in the present invention can effectively, quickly and continuously ensure that the soil is not frozen, and avoid the freezing of the soil in large-scale and long-term engineering projects, which affects the progress of the project and the quality of construction.

[0027] 2. The present invention provides a soil antifreeze system based on liquid cooling to consume cold energy, and also includes a pressure film, which is fixed on the bottom side of the insulation cover.

[0028] In this soil antifreeze system based on liquid cooling to consume cold energy, the film is arranged at the bottom of the insulation cover. Specifically, the film can be an independent component. When in use, the side of the film is temporarily fixed to the side of the insulation cover, for example, the side of the film is temporarily fixed to the side of the insulation cover by physical bonding. When in use, since the film is at the bottom of all the water bags, water is injected into the water bag through the water inlet until all the water bags are filled with water. The gravity of the water bag will press the film downward. Since the water bag and the film are both made of flexible materials, when there is a gap between the film and the soil surface, the film will be pressed down by the gravity of the water bag, and the film will fit with the soil surface to avoid a gap between the film and the soil surface, thereby preventing the outside cold air from entering the gap and affecting the thermal insulation performance of the soil antifreeze system.

[0029] 3. The present invention provides a soil antifreeze system based on liquid cooling to consume cold energy. The water bag includes an innermost water bag liner, a middle layer of a heating element protection lining, and an outermost heating element protection lining. The heating element is located between the heating element protection lining and the heating element protection outer lining.

[0030] This soil antifreeze system is based on liquid cooling to consume cold energy. The main function of the heating element protective lining and the heating element protective outer lining is to prevent thermal damage to the water bag inner liner and the insulation cover during the operation of the heating element. The material of the heating element protective lining and the heating element protective outer lining can be selected from ceramic fibers that are resistant to heat shock, have low thermal conductivity and high electrical insulation strength.

[0031] 4. The present invention provides a soil antifreeze system based on liquid cooling to consume cold energy, and the pressure film is configured to undergo elastic compression deformation under the gravity pressure of the water bag.

[0032] This soil antifreeze system based on liquid cooling to consume cold energy is equipped with a pressure film that undergoes elastic compression deformation under the pressure of the gravity of the water bag. When in use, water is injected into the water bag through the water inlet until all the water bags are filled with water. The gravity of the water bag will press the pressure film downward, so the pressure film can undergo elastic compression deformation under the gravity of the water bag to fit with the soil surface to avoid a gap between the pressure film and the soil surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic structural view of a soil antifreeze system based on liquid cooling and consumption of cold energy provided in an embodiment of the present invention;

[0035] Figure 2 A schematic structural view of a heating device in a soil antifreeze system based on liquid cooling to consume cold energy provided in an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of a partial structure of a heat preservation cover in a soil antifreeze system based on liquid cooling to consume cold energy provided in an embodiment of the present invention

[0037] Figure 4 Schematic diagram of the structure of a single water bag in a soil antifreeze system based on liquid cooling to consume cold energy provided in an embodiment of the present invention

[0038] Figure 5 It is a schematic structural view of a pressure membrane in a soil antifreeze system based on liquid cooling to consume cold energy provided in an embodiment of the present invention.

[0039] Description of reference numerals:

[0040] 1- Insulation cover;

[0041] 2- water bag; 21- water bag liner; 22- heating element protection lining, 23- heating element protection outer lining;

[0042] 3-heating device; 31-temperature controller; 32-temperature sensor; 33-heating element;

[0043] 4-Lamination. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] Example

[0047] In cold regions, the temperature in winter is below zero for a long time, and the problem of soil freezing is very prominent during the construction process. This extreme low temperature environment has brought many challenges to the construction of roads, railways, airports, pipelines, energy facilities and other projects.

[0048] The freezing and thawing process will cause the physical and mechanical properties of soil to change. For example, the freezing and thawing of loose soil will lead to increased density and reduced permeability, while the freezing and thawing of compacted soil will lead to decreased density and increased permeability. In addition, the freezing and thawing process will cause the sorting of soil particles, which will have a significant impact on its shear strength and bearing capacity, thus posing a serious threat to the stability and safe operation of engineering structures in cold regions. Therefore, during the implementation of the project in the negative temperature environment in winter, whether it is foundation engineering or dam engineering, it is required that the soil materials used and the construction work surface are strictly prohibited from freezing.

[0049] Currently, construction in cold regions relies on taking additional protective measures to solve the problem of soil freezing. For example, by covering with insulation materials, preheating the soil or delaying construction until warmer seasons. However, these measures are not only costly and time-consuming, but may not completely avoid the freezing problem. Especially in large-scale, long-term engineering projects, the freezing of on-site soil has a significant impact on the project progress and construction quality.

[0050] To this end, the present embodiment provides a soil antifreeze system based on liquid cooling to consume cold energy, so as to ensure that the soil does not freeze during the engineering construction operation.

[0051] In this embodiment, the soil antifreeze system based on liquid cooling to consume cold energy includes a plurality of water bags 2, a thermal insulation cover 1 and a heating device 3. The water bags 2 are suitable for being laid on the surface of the soil; any water bag 2 has a water inlet and a water outlet; the thermal insulation cover 1 is wrapped around the outside of the water bag 2, the heating device 3 includes a plurality of heating elements 33, and a heating element 33 is provided on any water bag 2.

[0052] Figure 1 This is a schematic structural diagram of the soil antifreeze system based on liquid cooling and consuming cold energy provided in this embodiment. Figure 1 As shown, in this soil antifreeze system, a plurality of water bags 2 are provided, and the specific number can be determined according to the use requirements on site. For example, if the surface of the soil to be laid is relatively wide, or the surface of the soil to be laid has high temperature requirements, the number of water bags 2 can be appropriately increased. A water inlet and a water outlet are provided on each water bag 2. When in use, after all the water bags 2 are laid on the surface of the soil, water is injected into the water bag 2 through the water inlet until all the water bags 2 are filled with water. The water in the water bag 2 has a high specific heat capacity and can absorb a large amount of heat. Therefore, the water in the water bag 2 absorbs and consumes the cold energy from the environment through heat exchange with the external cold air, reduces the external cold energy directly transferred to the soil, and delays the freezing of the soil. Of course, the water in this embodiment is only an example. In other embodiments, other liquids can also be used to achieve the effect of the liquid in the water bag 2 absorbing and consuming the cold energy from the environment through heat exchange with the external cold air, reducing the external cold energy directly transferred to the soil, and delaying the freezing of the soil.

[0053] Still reading Figure 1In this embodiment, a sealed placement space is provided inside the thermal insulation cover 1, and the water bag 2 is placed inside the placement space. The thermal insulation cover 1 is made of high-efficiency thermal insulation materials in the prior art. Since this application only directly applies the existing high-efficiency thermal insulation materials, it will not be introduced too much. It is sufficient to achieve the thermal insulation effect. In this embodiment, all water bags 2 are fixed to the thermal insulation cover 1. Therefore, when in use, all water bags 2 are laid on the soil surface together with the thermal insulation cover 1, and the thermal insulation cover 1 is wrapped around the outside of all water bags 2, and then water is injected into the water bag 2 through the water inlet until all water bags 2 are filled with water. Since all water bags 2 are wrapped with the thermal insulation cover 1 on the outside, the thermal insulation cover 1 is used to reduce the conduction of cold energy from the external environment to the soil, effectively slowing down temperature changes, thereby reducing the risk of freezing of the soil, and enabling the soil to maintain a relatively stable temperature in a severe cold environment.

[0054] Still reading Figure 1 In this embodiment, the heating device 3 includes a plurality of heating elements 33. A heating element 33 is provided on any water bag 2. The heating element 33 can be an existing resistance wire. The heating element 33 is provided on the water bag 2. As described above, the water in the water bag 2 has a high specific heat capacity and can absorb a large amount of heat. Therefore, the water in the water bag 2 absorbs and consumes cold energy from the environment through heat exchange with the external cold air, reduces the external cold energy directly transferred to the soil, and delays the freezing of the soil. Therefore, when the temperature of the water in the water bag 2 is reduced due to heat exchange with the external cold air, the water in the water bag 2 can be heated by the heating element 33 in the heating device 3 to increase the temperature of the water in the water bag 2 and prevent the water in the water bag 2 from freezing.

[0055] By providing water bags 2, thermal insulation cover 1 and heating device 3, when in use, all water bags 2 are laid together with thermal insulation cover 1 on the surface of the soil, thermal insulation cover 1 is wrapped around the outside of all water bags 2, and then water is injected into the water bags 2 through the water inlet until all water bags 2 are filled with water. The outside of all water bags 2 is wrapped with thermal insulation cover 1, which is used to reduce the conduction of cold energy from the external environment to the soil, effectively slowing down the temperature change, thereby reducing the risk of freezing of the soil, and allowing the soil to maintain a relatively stable temperature in a severe cold environment. By providing thermal insulation cover 1 on the outside of water bags 2, thermal insulation cover 1 is used to reduce the conduction of cold energy from the external environment to the soil, effectively slowing down the temperature change, thereby reducing the risk of freezing of the soil, and allowing the soil to maintain a relatively stable temperature in a severe cold environment. Since the water in the water bag 2 absorbs and consumes cold energy from the environment through heat exchange with the external cold air, when the temperature of the water in the water bag 2 decreases due to heat exchange with the external cold air, the water in the water bag 2 can be heated by the heating element 33 in the heating device 3 to increase the temperature of the water in the water bag 2 and prevent the water in the water bag 2 from freezing. Therefore, the soil antifreeze system based on liquid cooling and consuming cold energy in this embodiment can effectively, quickly and continuously ensure that the soil does not freeze, and avoid the freezing of the soil in large-scale and long-term engineering projects, which affects the progress and construction quality of the project.

[0056] In this embodiment, if Figure 1 As shown, the soil antifreeze system based on liquid cooling to consume cold energy also includes a pressure film 4, which is fixed at the bottom of the insulation cover 1. The pressure film 4 is configured to be close to the soil surface and fill the gap between the insulation cover 1 and the soil surface after the water bag 2 is filled with water and expanded.

[0057] exist Figure 1 As shown in , the film 4 is arranged at the bottom of the heat preservation cover 1. Specifically, the film 4 can be an independent component. When in use, the side of the film 4 is temporarily fixed to the side of the heat preservation cover 1, for example, the side of the film 4 is temporarily fixed to the side of the heat preservation cover 1 by physical bonding. When in use, since the film 4 is at the bottom of all the water bags 2, water is injected into the water bags 2 through the water inlet until all the water bags 2 are filled with water. The gravity of the water bags 2 will press the film 4 downward. Since the water bags 2 and the film 4 are both made of flexible materials, when there is a gap between the film 4 and the surface of the soil, the film 4 will be pressed down by the gravity of the water bags 2. The film 4 will fit with the surface of the soil to avoid a gap between the film 4 and the surface of the soil, thereby preventing the external cold air from entering the gap and affecting the thermal insulation performance of the soil antifreeze system.

[0058] The pressing film 4 is made of a flexible material in the prior art, such as a compression-resistant low-density TD I type high-resilience foam sponge.

[0059] The soil antifreeze system based on liquid cooling to consume cold energy provided in the present embodiment, when in use, a pressure film 4 is arranged on the lower side of the water bag 2, and water is injected into the water bag 2 through the water inlet until all the water bags 2 are fully filled with water. The gravity of the water bag 2 will press the pressure film 4 downward. Since the pressure film 4 is pressed downward by the gravity of the water bag 2, the pressure film 4 will fit with the surface of the soil to avoid a gap between the pressure film 4 and the surface of the soil, thereby preventing external cold air from entering the gap and affecting the thermal insulation performance of the soil antifreeze system.

[0060] In this embodiment, the pressing film 4 is configured to undergo elastic compression deformation under the gravity pressure of the water bag 2 .

[0061] By arranging the pressing film 4 to undergo elastic compression deformation under the pressure of gravity of the water bag 2, when in use, water is injected into the water bag 2 through the water inlet until all the water bags 2 are fully filled with water. The gravity of the water bag 2 will press the pressing film 4 downward, so that the pressing film can undergo elastic compression deformation under the gravity of the water bag to fit with the soil surface to avoid a gap between the pressing film and the soil surface.

[0062] Figure 5 The schematic diagram of the structure of the pressure film 4 in the soil antifreeze system based on liquid cooling and consuming cold energy provided in this embodiment. As described above, the pressure film 4 is configured to have elastic compression deformation under the gravity pressure of the water bag 2, so the pressure film 4 needs to have a certain thickness.

[0063] In this embodiment, if Figure 5 As shown, the upper side of the pressing film 4 is wavy. After the pressing film 4 is fixedly connected to the heat-insulating cover 1, the water bag 2 can be placed inside the groove on the upper side of the pressing film 4, which can limit the water bag 2 and prevent it from moving.

[0064] In this embodiment, if Figure 1 As shown, the placement space inside the heat-insulating cover 1 is divided into a number of mutually independent sub-compartments, and a water bag 2 is arranged in any of the sub-compartments.

[0065] A plurality of connection parts are provided on the placement space inside the heat preservation cover 1, which can divide the placement space into a plurality of independent sub-compartments. A water bag 2 is fixed inside each sub-compartment, so that each water bag 2 is individually fixed to avoid the movement of the water bag 2 during transportation or use, resulting in changes in the distance between the water bags 2 and uneven heating of the water inside the water bag 2.

[0066] Specifically, Figure 1As shown, several connecting parts are evenly spaced. By arranging the several connecting parts evenly spaced, the spacing between several sub-intervals formed by the connecting parts is also equal. Since a water bag 2 is fixed inside each sub-interval, each water bag 2 is individually fixed, so the evenly spaced distribution of the water bags 2 can be achieved.

[0067] The connection part can be realized by gluing, that is, the upper and lower surfaces of the placement space inside the heat preservation cover 1 are bonded and fixed by glue, so as to divide the placement space inside the heat preservation cover 1 into a plurality of sub-compartments.

[0068] In this embodiment, the water bag 2 is fixed to the heat preservation cover 1 at its upper and lower sides respectively.

[0069] By fixing the upper and lower sides of the water bag 2 to the heat preservation cover 1 respectively, it can be known from the above description that a plurality of sub-compartments are formed inside the heat preservation cover 1, and a water bag 2 is fixed inside each sub-compartment, so that each water bag 2 is fixed separately. Then, the upper and lower sides of the water bag 2 are fixed to the heat preservation cover 1 respectively by bonding, so as to prevent the water bag 2 from moving inside the sub-compartment.

[0070] In this embodiment, if Figure 3 As shown, the water inlet is arranged at the upper end of the water bag 2 and passes through the heat preservation cover 1, and the water outlet is arranged at the lower end of the water bag 2 and passes through the heat preservation cover 1.

[0071] like Figure 3 As shown, the water inlet is arranged at the upper end of the water bag 2, and the water inlet can be a tubular structure, that is, a water inlet pipe in the prior art is adopted, a section of the water inlet pipe is inserted into the water bag 2 and sealed with the water bag 2 at the plug-in position, so as to prevent the water bag 2 and the water inlet pipe from leaking due to a gap at the plug-in position, and the other end of the water inlet pipe penetrates the heat preservation cover 1 and protrudes out of the heat preservation cover 1, and this section is used to connect an external water source, and water is injected into the water bag 2 through the external water source. Of course, in order to prevent the water inside the water bag 2 from flowing out of the water inlet pipe after the water injection is completed, a one-way valve can be arranged at the end of the water inlet pipe, and when water is injected into the water bag 2 through the external water source, water can normally enter the water bag 2 through the one-way valve, and when the water injection is completed, the one-way valve is closed to prevent the water inside the water bag 2 from flowing out of the water inlet pipe. At the same time, by arranging the water inlet at the upper end of the water bag 2, it is more convenient to inject water into the water bag 2.

[0072] Similarly, the water outlet is provided at the lower end of the water bag 2 and passes through the heat preservation cover 1. The water outlet can also be a tubular structure, that is, a water outlet pipe in the prior art is used, one end of the water outlet pipe is inserted into the water bag 2 and sealed with the water bag 2 at the plug-in position to prevent leakage caused by a gap between the water bag 2 and the water outlet pipe at the plug-in position, and the other end of the water outlet pipe passes through the heat preservation cover 1 and then protrudes out of the heat preservation cover 1, and this section is used to discharge the water inside the water bag 2. Of course, a valve is provided at the end of the water outlet, and the valve is opened when water needs to be discharged, and the valve is closed when it needs to be closed.

[0073] In this embodiment, the heating element 33 is an electric heat resistance wire, which is spirally wrapped around the water bag 2. The heating element 33 adopts the electric heat resistance wire in the prior art. When the temperature of the water in the water bag 2 decreases due to heat exchange with the cold air outside, the electric heat resistance wire can be energized to heat the water in the water bag 2 through the electric heat resistance wire, so as to increase the temperature of the water in the water bag 2 and prevent the water in the water bag 2 from freezing.

[0074] like Figure 2 As shown, the electric heating resistance wire is spirally wrapped around the water bag 2. Since the water bag 2 is columnar and in order to increase the heating speed of the water in the water bag 2, the electric heating resistance wire is spirally arranged in this embodiment, and the spiral electric heating resistance wire wraps the water bag 2, thereby being able to heat the water in the water bag 2 in the entire circumferential direction of the water bag 2. Of course, in other embodiments, the electric heating resistance wire can also be arranged in other shapes, which can also achieve the purpose of heating the water in the water bag 2.

[0075] like Figure 4 As shown, the water bag 2 includes an innermost water bag liner 21 , a middle layer of a heating element protection lining 22 , and an outermost heating element protection lining 23 , and the heating element 33 is located between the heating element protection lining 22 and the heating element protection outer lining 23 .

[0076] The main function of the heating element protection lining 22 and the heating element protection outer lining 23 is to prevent the heating element 33 from causing thermal damage to the water bag liner 21 and the insulation cover 1 during operation. The material of the heating element protection lining 22 and the heating element protection outer lining 23 can be selected from ceramic fibers that are resistant to heat shock, have low thermal conductivity and high electrical insulation strength.

[0077] like Figure 2 As shown, the heating device 3 further includes a temperature controller 31 and a temperature sensor 32 . The number of the temperature sensors 32 is the same as that of the heating elements 33 . The temperature sensors 32 , the heating elements 33 and the temperature controller 31 are electrically connected.

[0078] In this embodiment, the number of temperature sensors 32 and heating elements 33 is the same. Specifically, one temperature sensor 32 and one heating element 33 are adapted to any water bag 2, and the temperature sensor 32 is located inside the water bag 2. As described above, the water in the water bag 2 has a high specific heat capacity and can absorb a large amount of heat. Therefore, the water in the water bag 2 absorbs and consumes cold energy from the environment through heat exchange with the external cold air, reduces the external cold energy directly transferred to the soil, and delays the freezing of the soil. Therefore, when the water in the water bag 2 gradually drops below the set temperature due to continuous absorption of cold energy, the temperature sensor 32 will automatically detect this change and start the heating element 33 to heat. The heating element 33 raises the water temperature in the water bag 2 by electrical heating. The temperature sensor 32 and the heating element 33 are electrically connected to the temperature controller 31. During the heating process, the heating element 33 will raise the water temperature to the set target temperature to prevent the water in the water bag 2 from freezing due to too low a temperature. After the water temperature reaches the set value, the temperature controller 31 controls the heating element 33 to automatically stop heating. The whole process is precisely controlled by the temperature sensor 32 and the temperature controller 31 to ensure that the water temperature fluctuates within a reasonable range. This heating process is cyclical. When the outside temperature continues to drop and the water temperature in the water bag 2 drops to the set temperature again, the heating device 3 will restart to maintain the water in the water bag 2 to continue to absorb cold. Through this cyclic control, the system can maintain the antifreeze effect of the soil in a long-term low temperature environment.

[0079] The soil antifreeze system provided in this embodiment based on liquid cooling and consuming cold energy has the following working process:

[0080] When in use, the soil antifreeze system is laid on the soil surface, and water is injected into the water bag 2 through the water inlet until all the water bags 2 are filled with water. When the soil antifreeze system is laid on the soil surface, the film 4 also has a certain weight, so that it can sag due to its own weight when placed on the soil surface, and its drooping length can completely cover the gap between the film 4 and the ground after the water bag 2 is flushed with water, thereby preventing the outside cold air from entering the gap. Further, when water is injected into the water bag 2 through the water inlet until all the water bags 2 are filled with water, the gravity of the water bag 2 will press the film 4 downward. Since the water bag 2 and the film 4 are both made of flexible materials, when there is a gap between the film 4 and the soil surface, the film 4 is pressed down by the gravity of the water bag 2, so the film 4 will fit with the soil surface to avoid the gap between the film 4 and the soil surface, thereby preventing the outside cold air from entering the gap and affecting the thermal insulation performance of the soil antifreeze system. Since the water in the water bag 2 has a high specific heat capacity and can absorb a large amount of heat, the water in the water bag 2 absorbs and consumes cold energy from the environment through heat exchange with the external cold air, reduces the external cold energy directly transferred to the soil, and delays the freezing of the soil. At the same time, the insulation cover 1 is wrapped around the outside of the water bag 2. The insulation cover 1 is made of high-efficiency insulation materials in the prior art. Since all the water bags 2 are wrapped around the insulation cover 1, the insulation cover 1 is used to reduce the cold energy of the external environment from being transferred to the soil, effectively slowing down the temperature change, thereby reducing the risk of freezing of the soil, so that the soil can maintain a relatively stable temperature in a severe cold environment.

[0081] As described above, the water in the water bag 2 has a high specific heat capacity and can absorb a large amount of heat. Therefore, the water in the water bag 2 absorbs and consumes cold energy from the environment through heat exchange with the external cold air, reduces the external cold energy directly transferred to the soil, and delays the freezing of the soil. Therefore, when the water in the water bag 2 gradually drops below the set temperature due to continuous absorption of cold energy, the temperature sensor 32 will automatically detect this change and start the heating element 33 to heat. The heating element 33 raises the water temperature in the water bag 2 by electric heating. The temperature sensor 32 is electrically connected to the heating element 33 and the temperature controller 31. During the heating process, the heating element 33 will raise the water temperature to the set target temperature to prevent the water in the water bag 2 from freezing due to too low a temperature. After the water temperature reaches the set value, the temperature controller 31 controls the heating element 33 to automatically stop heating. The entire process is precisely controlled by the temperature sensor 32 and the temperature controller 31 to ensure that the water temperature fluctuates within a reasonable range. This heating process is cyclical, and when the outside temperature continues to drop and the water temperature in the water bag 2 drops to the set temperature again, the heating device 3 will restart to maintain the water in the water bag 2 to continue to absorb cold. Through this cyclic control, the system can maintain the antifreeze effect of the soil in a low temperature environment for a long time.

[0082] After use, the water inside the water bag 2 can be drained out through the water outlet at the bottom of the water bag 2.

[0083] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A soil antifreeze system based on liquid cooling and consumption of cold energy, characterized in that: include: A plurality of water bags (2), all of which are suitable for being laid on the surface of a soil body; any of the water bags (2) has a water inlet and a water outlet; The heat preservation cover (1) has a sealed placement space inside, and the water bag (2) is placed inside the placement space; The heating device (3) comprises a plurality of heating elements (33), and any one of the water bags (2) is provided with a heating element (33).

2. The soil antifreeze system based on liquid cooling and consuming cold energy according to claim 1 is characterized in that: It also comprises a pressing film (4), wherein the pressing film (4) is fixed on the bottom side of the heat-insulating cover (1).

3. The soil antifreeze system based on liquid cooling and consuming cold energy according to claim 2 is characterized in that: The compression film (4) is configured to undergo elastic compression deformation under the gravitational pressure of the water bag (2).

4. The soil antifreeze system based on liquid cooling and consuming cold energy according to claim 2 is characterized in that: The placement space inside the heat-insulating cover (1) is divided into a plurality of mutually independent sub-compartments, and a water bag (2) is arranged in any of the sub-compartments.

5. The soil antifreeze system based on liquid cooling and consuming cold energy according to claim 4 is characterized in that: The plurality of sub-intervals are arranged at equal intervals.

6. The soil antifreeze system based on liquid cooling and consuming cold energy according to claim 5 is characterized in that: The upper and lower sides of the water bag (2) are respectively fixed to the heat-insulating cover (1).

7. The soil antifreeze system based on liquid cooling and consuming cold energy according to claim 6 is characterized in that: The water inlet is arranged at the upper end of the water bag (2) and passes through the heat-insulating cover (1), and the water outlet is arranged at the lower end of the water bag (2) and passes through the heat-insulating cover (1).

8. The soil antifreeze system based on liquid cooling and consuming cold energy according to any one of claims 1 to 7, characterized in that: The heating element (33) is an electric heat resistance wire, and the electric heat resistance wire wraps the water bag (2) in a spiral shape.

9. The soil antifreeze system based on liquid cooling and consuming cold energy according to claim 8 is characterized in that: The water bag (2) comprises a water bag inner liner (21) at the innermost side, a heating element protection inner lining (22) at the middle layer, and a heating element protection outer lining (23) at the outermost side, and the heating element (33) is located between the heating element protection inner lining (22) and the heating element protection outer lining (23).

10. The soil antifreeze system based on liquid cooling and consuming cold energy according to claim 9, characterized in that: The heating device (3) further comprises a temperature controller (31) and a temperature sensor (32); the number of the temperature sensors (32) is the same as the number of the heating elements (33); and the temperature sensors (32), the heating elements (33) and the temperature controller (31) are electrically connected.

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