Anti-melting ice brick and construction method

Abstract

The invention discloses an anti-melting ice-cream brick and a construction method, a hollow pipeline is arranged inside or at the edge of the ice-cream brick, the hollow pipeline is filled with a refrigerant lower than zero DEG C, the refrigerant circularly flows in the hollow pipeline, the environment heat absorbed by the ice-cream brick is absorbed through the pipeline wall, and the heat is transferred to a heat exchange device; therefore, the ice brick is kept below the freezing point in temperature and is not melted. According to the technical scheme, a hollow metal pipeline is arranged inside or on the edge of the ice cream brick, the pipeline is filled with a refrigerant with the temperature lower than zero DEG C, active cooling is achieved, and the key point lies in the high heat conductivity of a metal material and the closed-loop circulation design that a multi-layer semiconductor refrigeration device is used for discharging heat. According to the scheme, grooves are reserved when the ice bricks are prefabricated, and the ice bricks are fully attached to the pipeline by adopting a water spraying and freezing method, so that the heat exchange efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of building materials, in particular to an anti-melting ice brick. Background Art

[0002] At present, ice sculptures, ice buildings, ice landscapes and ice decorations have been used more maturely in the cold winter in the north, and their production process mainly relies on natural low-temperature environments or low-temperature storage conditions. However, with the growing demand for the promotion and application of ice culture and ice landscapes throughout the year and even in southern China, the traditional method of relying on external low-temperature conditions to maintain the stability of ice can no longer meet the long-term use requirements of ice products in summer or warm environments.

[0003] Traditional technology solutions mainly focus on the following aspects:

[0004] Low-temperature storage and transportation: After production, ice products need to be stored in cold storage, refrigerators or refrigerated trucks to avoid rapid melting in high-temperature environments. This method not only limits the application scenarios of ice products, but also greatly increases operating costs and logistics difficulties.

[0005] Thermal insulation measures: Some technologies attempt to slow down the heat exchange between the ice and the surrounding high-temperature environment by adding an insulating layer or spraying a special coating on the surface of the ice, but this method still cannot achieve effective anti-melting effects when exposed to high temperatures for a long time.

[0006] Local cooling methods: Some solutions use local cooling devices to cool the ice body, but there are often problems such as high energy consumption, complex systems and insufficient control accuracy, making it difficult to achieve stable effects in large areas or dynamic environments.

[0007] Therefore, the prior art has not yet provided an economical and efficient structural solution to keep the ice body in a frozen state in an environment above zero degrees Celsius. To address this problem, the present invention proposes a technical solution that a hollow refrigerant pipe is arranged inside or on the edge of the ice block, and a low-temperature refrigerant circulation and heat exchange device are used to actively remove the ambient heat absorbed by the ice body, so that the ice block can still maintain a low temperature state in a high-temperature environment. Summary of the invention

[0008] The present invention provides an anti-melting ice brick. This solution utilizes the high thermal conductivity of ice itself to form an efficient heat conduction channel through the close contact between the pipe and the ice brick. It not only overcomes the limitations of traditional low-temperature storage, but also avoids the energy consumption and system complexity problems faced by simple insulation or local cooling, and provides new technical support for the application of ice products throughout the year and in various environments.

[0009] The present invention solves the above technical problems through the following technical solutions: anti-melting ice bricks, with hollow pipes arranged inside or at the edge of the ice bricks, the hollow pipes are filled with a refrigerant below zero degrees Celsius, and the refrigerant circulates in the hollow pipes, absorbing the ambient heat absorbed by the ice bricks through the pipe walls, and transferring the heat to a heat exchange device, thereby keeping the temperature of the ice bricks below the freezing point without melting.

[0010] Wherein, the hollow pipe is made of metal pipe, and its material is selected from copper, aluminum, stainless steel and alloys thereof, so as to utilize the high thermal conductivity of metal to improve the heat transfer efficiency.

[0011] The refrigerant is automotive antifreeze or other liquid or gas with a temperature below zero degrees Celsius and suitable for circulating heat transfer.

[0012] Wherein, the heat exchange device is a multi-layer semiconductor refrigeration device, which is used to discharge the heat absorbed by the refrigerant to maintain the low temperature state of the refrigerant in the pipeline.

[0013] In the process of prefabricating ice bricks, grooves for laying the hollow pipes are reserved on the ice body, and water is sprayed between the ice bricks and the hollow pipes to freeze them, so that the ice bricks and the hollow pipes are fully fitted to improve the heat exchange efficiency.

[0014] The construction method of anti-melting ice bricks includes the following steps: S1. First, prefabricate ice into prefabricated ice bricks with grooves, and the purpose of reserving the grooves is to facilitate the laying of refrigerant pipes; s2. Store a number of prefabricated ice bricks in a low-temperature environment to prevent natural melting; s3. When starting to implement, first lay a layer of refrigerant pipes according to the bottom shape of ice products such as ice landscapes, ice buildings, ice sculptures, and ice decorations; S4. Low-temperature refrigerant circulates inside the pipeline, and the surface temperature of the pipeline is extremely low. At this time, the prefabricated ice bricks are laid on the pipeline in turn, or close to the pipeline, S5. The pipeline and the ice bricks are close, and water is sprayed at the gap. The low temperature of the pipeline prompts the water to cool down and freeze quickly, so that the ice bricks and the pipeline are completely fitted, and the refrigerant pipeline absorbs the heat of the ice bricks, and the absorbed heat is greater than or equal to the heat absorbed by itself from the environment, so that it is not melted; s6. Repeat the above operations until the entire construction is completed.

[0015] The beneficial effects of the present invention are:

[0016] 1. Utilizing the high thermal conductivity of metal pipes (such as copper, aluminum, stainless steel and their alloys), the heat inside or at the edge of the ice brick can be quickly transferred to the low-temperature refrigerant through the pipe wall, thereby achieving a rapid and uniform cooling effect and ensuring that the ice brick is always maintained below the freezing point without melting.

[0017] 2. The refrigerant circulates in the hollow pipe and discharges the absorbed heat through the multi-layer semiconductor refrigeration device, forming a closed loop. This design can not only continuously remove the ambient heat absorbed by the ice bricks, but also maintain the low temperature state of the refrigerant in the pipe through real-time regulation, ensuring the long-term stable operation of the system.

[0018] 3. Special grooves are reserved during the prefabrication of ice bricks, and ice is sprayed with water to make the ice bricks fit the refrigerant pipes fully, which significantly improves the heat exchange efficiency. This design optimizes the contact area and heat transfer path between the ice bricks and the refrigerant pipes, making the cooling effect more significant.

[0019] 4. Traditional ice bricks are easy to melt in an environment above zero degrees Celsius, but this solution uses active cooling technology to keep ice bricks stable even in high temperature environments, thereby expanding the application range of ice products such as ice sculptures, ice buildings, and ice landscapes in non-traditional low-temperature areas or in summer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the practical embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only the practical embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 The figure shows the structure schematic diagram of the anti-melting ice brick embodiment 1;

[0022] Figure 2 Shown is a schematic structural diagram of embodiment 2 of the anti-melting ice brick.

[0023] In the attached figure: 1-prefabricated ice brick; 2-refrigerant pipeline; 3-groove. DETAILED DESCRIPTION

[0024] Two embodiments are given below and combined with the accompanying drawings to more clearly and completely illustrate the present invention.

[0025] Ice melts because it absorbs heat. To prevent ice from melting, the conventional method is to place the ice in an environment below zero degrees Celsius, such as in winter in the north, in freezers and refrigerators below zero degrees Celsius, etc. If ice is exposed to an environment above zero degrees Celsius and does not melt, there is no effective solution.

[0026] The technical solution adopted by the present invention is: in order to prevent ice from melting in a high temperature environment, although it is impossible to directly control the amount of heat absorbed by ice from the surrounding environment, the heat of ice can be absorbed by physical means. As long as the heat absorbed by ice through physical means is greater than or equal to the heat absorbed by ice itself from the environment, it can be ensured that ice will not melt. The present invention adopts a hollow pipe (the shape of the pipe is not limited) set inside or at the edge of the ice, and the pipe is filled with refrigerant (liquid or gas below zero degrees Celsius). The refrigerant circulates in the pipe and absorbs the heat of ice through the pipe wall. The environmental heat absorbed by ice passes through: ice itself-pipe wall-refrigerant, the heat is taken away by the refrigerant, and the refrigerant passes through a heat exchange device, and the excess heat is replaced by the heat exchange device. The cycle runs, and the temperature and flow rate of the refrigerant are controlled according to the ambient temperature and the temperature of the ice body, so that the heat taken away by the refrigerant is greater than or equal to the heat absorbed by the ice itself, so that it will not melt.

[0027] Embodiment 1: A refrigerant pipe is arranged inside the ice brick

[0028] 1. Ice brick prefabrication

[0029] Mould design and dimensions

[0030] A plastic mold similar to a standard red brick is used, with dimensions of 240 mm long, 115 mm wide and 53 mm high. An internal channel running through the length of the ice brick is designed in the mold, with a channel diameter of 10 mm and arranged along the center line of the 240 mm long side of the ice brick to ensure that the channel is evenly distributed inside the ice brick.

[0031] Ice making process

[0032] Pure water is injected into the mold, and a hollow copper tube with an outer diameter of about 9 mm and moderate wall thickness is pre-placed in the channel area to ensure that the copper tube can be freely placed in the channel while maintaining an appropriate gap. The mold is then placed in a low-temperature freezing device (temperature of about -20°C or lower) and frozen for about 4 to 6 hours to obtain an ice brick with a copper tube inside and completely frozen water.

[0033] 2. Installation and close contact formation

[0034] Gap treatment between channels and pipes

[0035] After the ice bricks are taken out, tiny gaps may be formed between the copper tube and the ice body due to the contraction of water during the ice-making process. At this time, a water spraying device is used to evenly spray water along the contact area between the copper tube and the ice body. The low temperature on the surface of the copper tube is used to quickly freeze the sprayed water to fill the gaps, thereby achieving sufficient thermal contact between the copper tube and the ice body.

[0036] Sealing and fixing

[0037] If necessary, a thin layer of ice liquid can be sprayed on the outside of the contact surface between the ice brick and the pipe, so that it can form a natural bond after refreezing, thereby improving the sealing and stability during long-term operation.

[0038] 3. System connection and operation

[0039] Connecting heat exchange system

[0040] Interfaces are reserved at both ends of the refrigerant pipe, one end of which is connected to the multi-layer semiconductor refrigeration heat exchange device through an insulation pipeline; the other end is provided with a return pipe to form a complete refrigerant circulation system.

[0041] Refrigerant and operating parameters

[0042] The refrigerant is automotive antifreeze, which is cooled by the heat exchange device to maintain a temperature between -5°C and -15°C. The circulation flow rate is set to meet the requirement that the heat transferred per unit time is greater than the heat absorbed by the ice brick environment.

[0043] Monitoring and Adjustment

[0044] Temperature sensors can be arranged in the system (installed inside the ice bricks and at the entrances and exits of the pipes). The control unit can monitor and automatically adjust the refrigerant temperature and flow rate in real time to ensure that the temperature of the entire ice brick is maintained below the freezing point, thereby achieving an anti-melting effect.

[0045] This embodiment embeds the refrigerant pipe into the ice brick and uses the high thermal conductivity inside the ice body to achieve uniform heat dissipation, thereby ensuring that the overall cooling effect of the ice brick is balanced. It is suitable for occasions where high requirements are placed on the uniformity of the temperature inside the ice body.

[0046] Embodiment 2: Refrigerant pipes are arranged on the surface of ice bricks

[0047] 1. Ice brick prefabrication

[0048] Mould design and dimensions

[0049] A plastic mold with the same size as a standard building red brick (240mm×115mm×53mm) is used, and several grooves about 200mm long and 5-8mm deep are pre-designed on the upper part of the mold (i.e. the outer side of the subsequent ice brick). The shape of the groove matches the shape of the refrigerant pipe (for example, the outer diameter of the refrigerant pipe is 9mm) to facilitate subsequent installation.

[0050] Ice making process

[0051] Pure water is poured into the mold and frozen to form an ice block with a reserved surface groove. The reserved groove is fixed on the surface of the ice body during the ice block formation process, without the need for subsequent processing, ensuring that the groove edge is flat and the depth is uniform.

[0052] 2. Laying of refrigerant pipes

[0053] Pipeline selection and installation

[0054] Choose a stainless steel hollow refrigerant tube made of copper or aluminum, whose outer diameter matches the size of the reserved groove. Lay the refrigerant tube in the groove on the ice brick surface according to the predetermined path, and ensure that the tube is completely placed in the groove.

[0055] In order to achieve close contact between the refrigerant pipe and the ice brick, water is sprayed evenly along the contact surface between the pipe and the groove during the laying process. The sprayed water is quickly frozen by the low temperature in the pipe, filling the gap between the pipe and the ice brick in the groove, thus forming an integrally sealed heat-conducting interface.

[0056] Fixing method

[0057] If necessary, a thin layer of ice can be sprayed on the outside of the pipe to increase the fixing strength of the pipe and prevent the pipe from shifting or falling out of the groove due to external force vibration.

[0058] 3. System connection and operation

[0059] Pipeline interface and heat exchange

[0060] The refrigerant pipe is provided with connection interfaces at both ends, one end of which is connected to the heat exchange device, and the other end is used as a reflux passage to form a closed loop with the heat exchange system.

[0061] The refrigerant parameter setting uses automotive antifreeze as the refrigerant, which is cooled by the heat exchange device and maintained at around -5℃ to -15℃, ensuring that the heat absorbed by the surface of the ice brick can be quickly taken away in a high temperature environment.

[0062] Real-time monitoring

[0063] Temperature sensors are placed on the surface of ice bricks and near the refrigerant pipes to monitor the surface temperature of ice bricks and the inlet and outlet temperatures of refrigerant pipes in real time. The refrigerant flow rate and temperature are adjusted using an automatic control system to achieve a continuous and stable anti-melting effect.

[0064] This embodiment uses the ice brick surface to set the refrigerant pipe, the construction process is relatively simple, and there is no need to reserve a channel inside the ice brick. It is suitable for applications where it is necessary to focus on controlling the surface temperature of the ice brick, ensuring the continuity of the appearance, and having high requirements for local cooling. It is also convenient for local construction during later maintenance and replacement of the refrigerant pipe.

[0065] The above two embodiments describe in detail the specific process steps, dimensional parameters and key process control points, respectively from the perspective of installing refrigerant pipes inside and on the surface, to ensure that the ice bricks can maintain a low temperature in a high temperature environment and achieve the technical effect of preventing melting. In actual application, the appropriate solution can be selected according to the project requirements and site conditions, or the advantages of both can be combined for optimization design.

Claims

1. Anti-melting ice bricks, characterized by: A hollow pipe is arranged inside or at the edge of the ice brick. The hollow pipe is filled with a refrigerant below zero degrees Celsius. The refrigerant circulates in the hollow pipe, absorbs ambient heat absorbed by the ice brick through the pipe wall, and transfers the heat to the heat exchange device, thereby keeping the temperature of the ice brick below the freezing point without melting.

2. The anti-melting ice brick according to claim 1, characterized in that: The hollow pipe is made of metal pipe, and the material is selected from copper, aluminum, stainless steel and alloys thereof, so as to utilize the high thermal conductivity of metal to improve the heat transfer efficiency.

3. The anti-melting ice brick according to claim 1, characterized in that: The refrigerant includes but is not limited to automotive antifreeze or other liquids or gases with a temperature below zero degrees Celsius and suitable for circulating heat transfer.

4. The anti-melting ice brick according to claim 1, characterized in that: The heat exchange device is used to discharge the heat absorbed by the refrigerant to maintain the low temperature state of the refrigerant in the pipeline, including but not limited to compression refrigeration, injection refrigeration, semiconductor refrigeration, and vortex tube refrigeration.

5. The anti-melting ice brick according to claim 1, characterized in that: During the prefabrication of ice bricks, grooves for laying the hollow pipes are reserved on the ice body, and water is sprayed between the ice bricks and the hollow pipes to freeze them, so that the ice bricks and the hollow pipes are fully fitted to improve the heat exchange efficiency.

6. The construction method of the anti-melting ice brick according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: S1. prefabricate ice into prefabricated ice bricks with grooves, the purpose of reserving the grooves is to facilitate the laying of refrigerant pipes; s2. store a number of prefabricated ice bricks in a low-temperature environment to prevent natural melting; s3. when starting to implement, first lay a layer of refrigerant pipes according to the bottom shape of ice landscapes, ice buildings, ice sculptures, ice decorations and other ice products; S4. low-temperature refrigerant circulates inside the pipe, and the surface temperature of the pipe is extremely low. At this time, the prefabricated ice bricks are laid on the pipe in turn, or close to the pipe, S5. the pipe and the ice bricks are close together, and water is sprayed at the gap. The low temperature of the pipe causes the water to cool down and freeze quickly, so that the ice bricks and the pipe are completely fitted, and the refrigerant pipe absorbs the heat of the ice bricks, and the absorbed heat is greater than or equal to the heat absorbed by itself from the environment, so that the ice bricks are not melted; s6. repeat the above operations until the entire construction is completed.

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