Energy flat storage system

Abstract

The invention discloses an energy bunk system, including a bunk, a bunk, a bunk including a bunk body and a bunk roof, a vent is arranged on the upper side of the bunk body, a pile foundation is provided below the bunk, the pile foundation includes an energy pile and a cap, the energy pile includes a pile body and an energy pile heat exchange pipe, and the energy pile heat exchange pipe is arranged inside the pile body; an energy storage tank and an energy pump are installed above the cap, a bunk heat exchange pipe and a control pipeline are connected in parallel between the energy storage tank and the energy pump, the bunk heat exchange pipe is laid on the bunk body, the bottom of the bunk body and the bunk roof, the cross-sectional shape of the bunk heat exchange pipe is flat square or flat round, a first electromagnetic valve is arranged on the bunk heat exchange pipe, a second electromagnetic valve is arranged on the control pipeline, and the energy pump, the energy pile heat exchange pipe and the energy storage tank are connected in sequence. The invention combines the energy pile foundation with the bunk, adopts underground cold energy and heat energy to regulate the temperature of grain in the bunk, and utilizes underground energy to achieve energy conservation and emission reduction.

Description

Technical Field

[0001] The invention relates to the technical field of grain storage, and in particular to an energy flat warehouse system. Background Art

[0002] Food security is an important prerequisite for the development of the national economy. As a major country in grain production and consumption, China has a long history of grain storage. Granaries are an important part of grain storage technology. The main types of silos currently used include vertical silos (silos for short), shallow round silos and bungalow silos. Among them, bungalow silos have high grain loading height, large span, moderate cost, good moisture-proof performance, and are convenient for long-term grain storage.

[0003] The guarantee of grain quality in grain storage technology is the primary issue of grain storage. High temperature, mildew, insect pests, etc. will deteriorate the quality of grain. The conventional treatment methods are artificial refrigeration and fumigation. Artificial refrigeration requires a lot of energy, which is contrary to my country's goal of energy conservation and emission reduction. Fumigation technology often pollutes grain and is not good for human health. In order to extend the storage time of grain and ensure the quality of grain, creating a low-temperature environment in the granary has become the mainstream trend of grain storage. Artificial refrigeration requires a lot of energy, which is contrary to energy conservation and emission reduction. Therefore, new technical measures are needed to achieve both low-temperature grain storage and energy conservation and emission reduction.

[0004] Studies have shown that grain has the longest storage time and the best quality at around 15°C, while the temperature 10-30m underground is a constant temperature environment and is about 15-20°C, which is basically consistent with the grain storage temperature. Therefore, geothermal grain storage can be considered, but the construction cost and difficulty of extracting underground cold and heat energy by drilling and burying pipelines and underground granaries are relatively high. As an emerging technology, energy piles have effectively solved the problem of underground energy development difficulties and greatly improved the development and utilization of underground energy. They can not only create a constant low temperature environment but also achieve energy conservation and emission reduction. At the same time, the construction of granaries often has extremely high requirements for the foundation. In order to meet the safety of the storage structure, the foundation needs to be reinforced accordingly. At present, the commonly used foundation reinforcement measures focus on pile foundations. Therefore, the application of energy pile technology in granary storage technology can not only provide a constant low temperature environment for the granary, extend the grain storage period, and ensure the quality of grain, but also achieve energy conservation and emission reduction, green grain storage and ecological grain storage. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides an energy bunk warehouse system, which combines an energy pile foundation with a bunk warehouse, adopts underground cold energy and heat energy to regulate the temperature of grain in the bunk warehouse, and utilizes underground energy to achieve energy conservation and emission reduction.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is to provide an energy bunk house system, including a bunk house, the bunk house includes a bunk body and a bunk roof, the bunk roof is a gable roof or a circular roof, the bottom of the bunk body is a flat bottom, and a vent is arranged on the upper side of the bunk body. Below the bunk house is a pile foundation, the pile foundation includes an energy pile and a cap fixedly connected to the top of the energy pile, the energy pile includes a pile body and an energy pile heat exchange pipe, the pile body is buried in the soil layer below the surface, and the energy pile heat exchange pipe is arranged inside the pile body;

[0007] An energy storage tank and an energy pump are installed above the pedestal. The energy storage tank contains energy medium. A flat warehouse heat exchange pipe and a control pipeline are connected in parallel between the energy storage tank and the energy pump. The flat warehouse heat exchange pipe is laid on the warehouse body, the bottom of the warehouse body and the warehouse roof of the flat warehouse, and is located between the inner and outer surfaces of the warehouse wall of the flat warehouse or on the inner surface of the warehouse wall. The cross-sectional shape of the flat warehouse heat exchange pipe is an oblate square or an oblate circle. A first solenoid valve is provided on the flat warehouse heat exchange pipe, and a second solenoid valve is provided on the control pipeline. The inlet of the energy pile heat exchange pipe is connected to the energy pump, and the outlet of the energy pile heat exchange pipe is connected to the energy storage tank;

[0008] An internal temperature sensor is installed on the inner wall of the flat warehouse, and a storage tank temperature sensor is installed on the inner wall of the energy storage tank.

[0009] The present invention also includes a temperature control device, the temperature sensor in the warehouse and the temperature sensor in the storage tank are electrically connected to the temperature control device respectively, and the temperature control device is electrically connected to the first solenoid valve, the second solenoid valve and the energy pump respectively through wires.

[0010] Preferably, the energy pile heat exchange tube arranged inside the pile body is single U-shaped, double U-shaped, single spiral or double spiral, and the energy pile heat exchange tube is made of stainless steel or PVC.

[0011] Preferably, the flat warehouse heat exchange tubes are arranged in a vertical U-shape, a horizontal U-shape, a single spiral shape or a double spiral shape, and the flat warehouse heat exchange tubes are made of stainless steel or PVC.

[0012] Preferably, the exterior of the energy storage tank is coated with a thermal insulation layer.

[0013] Preferably, the outer surface of the bungalow warehouse roof is coated with heat-reflective heat-insulating paint.

[0014] Preferably, the energy medium is air, water or a coolant.

[0015] By adopting the above technical solution, the present invention has the following advantages:

[0016] The vents of the present invention are arranged on the side of the bungalow body. When grain is piled up and stored in the bungalow, the temperature in the middle of the grain pile is the highest. Therefore, the vents are arranged on the side of the bungalow body for ventilation. In silo and shallow round silo structures, the vents can only be arranged on the top of the bungalow.

[0017] The flat warehouse has a large span and a large grain capacity. The flat warehouse heat exchange pipe in the present invention is not only laid on the warehouse body and the bottom of the warehouse body, but also laid on the warehouse roof, which is more conducive to heat exchange between the flat warehouse heat exchange pipe and the grain pile in the flat warehouse, and can meet the cooling demand of the flat warehouse. At the same time, the flat warehouse heat exchange pipe with a flat square or flat round cross-sectional shape is selected to increase the contact area between the flat warehouse heat exchange pipe and the warehouse wall, further meeting the cooling demand of the flat warehouse.

[0018] The present invention can utilize underground cold energy and heat energy to provide a stable temperature environment for the grain in the bungalow warehouse, that is, absorb heat from geothermal energy through energy media in winter, and transfer heat to geothermal energy through energy media in summer, thereby realizing ecological grain storage and energy conservation and emission reduction.

[0019] The present invention develops underground energy by adopting the technology of combining energy piles and bunk warehouses to realize low-temperature grain storage, which has good promotion prospects and economic benefits. Compared with drilling holes and burying pipelines to extract underground cold and heat energy, energy piles reduce construction costs and difficulties, while improving the exchange efficiency of underground cold and heat energy. In addition, energy piles are also conducive to energy conservation and emission reduction. Studies have shown that energy piles reduce energy consumption by about 30% compared with traditional air-conditioning systems, and the cost of energy piles is only about 0.1% higher than that of ordinary piles. Therefore, energy piles also have extremely high economic benefits.

[0020] The present invention utilizes an energy storage tank and a temperature control device to effectively avoid invalid energy medium circulation. The temperature control device can feedback-adjust the first solenoid valve and the second solenoid valve through the temperatures measured by the temperature sensor in the warehouse and the storage tank temperature sensor, and control the operation of the energy pump, thereby further accurately regulating the temperature inside the flat warehouse, ensuring the constancy of the grain storage environment temperature, and avoiding invalid circulation of energy media, thereby improving energy utilization and achieving energy conservation and emission reduction.

[0021] In summary, the present invention can make better use of underground clean energy, is convenient to construct and has good economic benefits, and has a broad prospect for engineering application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional schematic diagram of the present invention;

[0023] Figure 2 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0024] Figure 3 It is a schematic diagram of pipeline connection of the present invention;

[0025] Figure 4 It is a schematic diagram of the relative positions of the flat warehouse heat exchange tube and the flat warehouse wall in the present invention;

[0026] Figure 5 It is a schematic diagram of a flat warehouse heat exchange tube with a flat square cross-section;

[0027] Figure 6 It is a schematic diagram of a flat warehouse heat exchange tube with an oblate cross-sectional shape. DETAILED DESCRIPTION

[0028] like Figures 1 to 6 As shown, an energy bungalow system of the present invention includes a bungalow, which includes a bungalow body 101 and a bungalow roof 102, the bungalow roof 102 is a gable roof or a circular roof, the bungalow body 101 is surrounded by four walls, the bottom of the bungalow body 101 is flat, and a vent 103 is arranged on the upper side of the bungalow body 101, and a pile foundation is provided below the bungalow, the bungalow is supported on the pile foundation, and the outer surface of the bungalow roof 102 is coated with a heat-reflective heat-insulating coating, the pile foundation includes an energy pile 2 and a cap 3 fixedly connected to the top of the energy pile 2, the energy pile 2 includes a pile body 201 and an energy pile heat exchange pipe 202, the pile body 201 is buried in the soil layer below the surface, and the energy pile heat exchange pipe 202 is arranged inside the pile body 201;

[0029] like Figure 2 As shown, an energy storage tank 4 and an energy pump 5 are installed above the base 3. The energy pump 5 includes a circulation pump and a compressor connected in series through pipelines. The outside of the energy storage tank 4 is coated with a thermal insulation layer. The energy storage tank 4 contains an energy medium. The energy medium can be gas or liquid according to needs. Specifically, air, water or coolant can be used. A flat warehouse heat exchange pipe 6 and a control pipeline 7 are connected in parallel between the energy storage tank 4 and the energy pump 5. The flat warehouse heat exchange pipe 6 is laid on the warehouse body 101, the bottom of the warehouse body 101 and the warehouse roof 102 of the flat warehouse. Figure 4 As shown, the flat warehouse heat exchange tube 6 is located between the inner and outer surfaces of the flat warehouse wall or on the inner surface of the warehouse wall. Figure 4 a, b, and c are schematic diagrams of different layout positions of the flat warehouse heat exchange tube 6, such as Figure 5 and Figure 6 As shown, the cross-sectional shape of the flat warehouse heat exchange pipe 6 is an oblate square or oblate circle, a first solenoid valve 8 is provided on one end of the flat warehouse heat exchange pipe 6 adjacent to the energy storage tank 4, a second solenoid valve 9 is provided on the control pipeline 7, the inlet of the energy pile heat exchange pipe 202 is connected to the energy pump 5, and the outlet of the energy pile heat exchange pipe 202 is connected to the energy storage tank 4;

[0030] An internal warehouse temperature sensor 10 is installed on the inner wall of the bunk warehouse, and a storage tank temperature sensor 11 is installed on the inner wall of the energy storage tank 4 .

[0031] The present invention also includes a temperature control device 12, the temperature sensor 10 in the warehouse and the temperature sensor 11 in the storage tank are electrically connected to the temperature control device 12 respectively, and the temperature control device 12 is electrically connected to the first solenoid valve 8, the second solenoid valve 9 and the energy pump 5 respectively through wires.

[0032] The temperature control device 12 can be a PLC, an integrated circuit or a single-chip microcomputer (such as a 51 single-chip microcomputer or an 89C52 single-chip microcomputer). The temperature control device 12 can feedback and adjust the first solenoid valve 8 and the second solenoid valve 9 through the temperature measured by the temperature sensor 10 in the warehouse and the temperature sensor 11 in the storage tank, and control the operation of the energy pump 5, so as to further accurately control the temperature inside the flat warehouse, ensure the storage needs of grain, and avoid energy waste.

[0033] The energy pile heat exchange tube 202 arranged inside the pile body 201 can be single U-shaped, double U-shaped, single spiral or double spiral, etc., and the material of the energy pile heat exchange tube 202 is stainless steel or PVC. In practical applications, the number of buried energy pile heat exchange tubes 202 can be selected according to the pile diameter and actual needs, and the energy pile 2 can be a precast concrete energy pile 2 or a cast-in-place concrete energy pile 2 according to the type of pile foundation. The energy medium flows in from one end of the energy pile heat exchange tube 202, flows through the energy pile heat exchange tube 202 section located in the pile body 201, and then flows out from the other end of the energy pile heat exchange tube 202. During the process of flowing in and out, the energy medium exchanges heat with the pile body 201 of the energy pile 2 and the surrounding soil.

[0034] The flat warehouse heat exchange pipe 6 can be arranged in a vertical U-shape, a horizontal U-shape, a single spiral shape or a double spiral shape, etc. The flat warehouse heat exchange pipe 6 is made of stainless steel or PVC. The specific number of flat warehouse heat exchange pipes 6 is determined according to needs, and the structural type of the flat warehouse can be cast-in-place concrete, a pre-warehouse body or a steel warehouse body, etc.

[0035] The cross-sectional type of the energy pile heat exchange tube 202 can be selected according to the shape of the pile body 201 to improve the heat exchange rate of the energy pile 2, and is not limited to circular, square or elliptical shapes.

[0036] When installing the present invention, it can be installed according to the following assembly process: first install the energy pile heat exchange tube 202 on the pile body 201 steel cage; construct the energy pile 2 on site; during the construction of the bungalow warehouse structure, install the bungalow warehouse heat exchange tube 6 on the inner side of the bungalow warehouse wall or on the inner side of the steel bar of the bungalow warehouse structure and cast it in the bungalow warehouse structure, and then install the energy pump 5, energy storage tank 4, temperature control device 12 and the warehouse temperature sensor 10, storage tank temperature sensor 11 and other equipment.

[0037] Working process:

[0038] When the storage tank temperature sensor 11 measures that the temperature in the energy storage tank 4 reaches a preset temperature (for example, 16 degrees Celsius), the first solenoid valve 8 opens and the second solenoid valve 9 closes, and the energy storage tank 4, the bungalow heat exchange pipe 6, the energy pump 5 and the energy pile heat exchange pipe 202 are connected in sequence to form a loop, and the energy medium is pumped from the energy storage tank 4 into the bungalow heat exchange pipe 6 arranged around the bungalow, and exchanges heat and keeps warm with the grain stored in the bungalow. The energy medium after heat exchange is pumped into the energy pile heat exchange pipe 202 through the energy pump 5, and exchanges heat with the pile body 201 of the energy pile 2 buried underground and the surrounding soil. Then the energy medium returns to the energy storage tank 4 and continues to participate in the circulation heat exchange.

[0039] When the storage tank temperature sensor 11 measures that the temperature in the energy storage tank 4 has not reached the preset temperature (for example, 16 degrees Celsius), the first solenoid valve 8 is closed, the second solenoid valve 9 is opened, and the energy storage tank 4, the energy pump 5 and the energy pile heat exchange tube 202 are connected in sequence to form a loop, and the energy medium directly enters the energy pile heat exchange tube 202 through the energy pump 5 for heat exchange, and then returns to the energy storage tank 4 until the temperature in the energy storage tank 4 reaches the preset temperature.

[0040] When the temperature sensor 10 in the warehouse measures that the temperature in the bungalow warehouse reaches a preset temperature (for example, 16 degrees Celsius), the energy pump 5 is turned off, thereby realizing the exploitation of underground energy while improving energy utilization efficiency and reducing carbon emissions.

[0041] Combined with the insulation layer and the first solenoid valve 8 and the second solenoid valve 9, the energy storage tank 4 can store and regulate the temperature of the energy medium to ensure that the temperature of the energy medium entering the flat warehouse heat exchange pipe 6 is the required temperature, avoiding energy waste due to invalid circulation caused by insufficient temperature.

[0042] The warehouse temperature sensor 10, storage tank temperature sensor 11, first solenoid valve 8, second solenoid valve 9, energy storage tank 4, circulation pump and compressor are all existing conventional devices, and their specific structures will not be described in detail.

[0043] This embodiment does not impose any formal limitation on the shape, material, structure, etc. of the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. An energy flat warehouse system, characterized by: It includes a bungalow warehouse, which includes a warehouse body and a warehouse roof. The warehouse roof is a gable roof or a round roof. The bottom of the warehouse body is flat. Ventilation holes are arranged on the upper side of the warehouse body. Below the bungalow warehouse is a pile foundation. The pile foundation includes an energy pile and a cap fixedly connected to the top of the energy pile. The energy pile includes a pile body and an energy pile heat exchange pipe. The pile body is buried in the soil layer below the surface of the ground, and the energy pile heat exchange pipe is arranged inside the pile body. An energy storage tank and an energy pump are installed above the pedestal. The energy storage tank contains energy medium. A flat warehouse heat exchange pipe and a control pipeline are connected in parallel between the energy storage tank and the energy pump. The flat warehouse heat exchange pipe is laid on the warehouse body, the bottom of the warehouse body and the warehouse roof of the flat warehouse, and is located between the inner and outer surfaces of the warehouse wall of the flat warehouse or on the inner surface of the warehouse wall. The cross-sectional shape of the flat warehouse heat exchange pipe is an oblate square or an oblate circle. A first solenoid valve is provided on the flat warehouse heat exchange pipe, and a second solenoid valve is provided on the control pipeline. The inlet of the energy pile heat exchange pipe is connected to the energy pump, and the outlet of the energy pile heat exchange pipe is connected to the energy storage tank; The inner wall of the flat warehouse is equipped with a warehouse temperature sensor, and the inner wall of the energy storage tank is equipped with a storage tank temperature sensor; It also includes a temperature control device, the temperature sensor in the bin and the temperature sensor in the storage tank are electrically connected to the temperature control device respectively, and the temperature control device is electrically connected to the first solenoid valve, the second solenoid valve and the energy pump respectively through wires; The energy pile heat exchange tube arranged inside the pile body is single U-shaped, double U-shaped, single spiral or double spiral; When the storage tank temperature sensor measures that the temperature in the energy storage tank reaches the preset temperature, the first solenoid valve opens and the second solenoid valve closes, and the energy storage tank, the bungalow heat exchange pipe, the energy pump and the energy pile heat exchange pipe are connected in sequence to form a loop, and the energy medium is pumped from the energy storage tank into the bungalow heat exchange pipe arranged around the bungalow, and exchanges heat and keeps warm with the grain stored in the bungalow. The energy medium after heat exchange is pumped into the energy pile heat exchange pipe through the energy pump, and exchanges heat with the energy pile body buried underground and the surrounding soil. Then the energy medium returns to the energy storage tank and continues to participate in the circulating heat exchange; when the storage tank temperature sensor measures that the temperature in the energy storage tank does not reach the preset temperature, the first solenoid valve closes and the second solenoid valve opens, and the energy storage tank, the energy pump and the energy pile heat exchange pipe are connected in sequence to form a loop, and the energy medium directly enters the energy pile heat exchange pipe through the energy pump for heat exchange, and then returns to the energy storage tank until the temperature in the energy storage tank reaches the preset temperature; First, install the energy pile heat exchange pipe on the pile steel cage; carry out energy pile construction on site; during the construction of the bungalow warehouse structure, install the bungalow warehouse heat exchange pipe on the inner side of the bungalow warehouse wall or on the inner side of the bungalow warehouse structure steel bar and cast it in the bungalow warehouse structure, and then install the energy pump, energy storage tank, temperature control device, bunker temperature sensor and storage tank temperature sensor.

2. The energy flat warehouse system according to claim 1, characterized in that: The energy pile heat exchange tube is made of stainless steel or PVC.

3. The energy flat warehouse system according to claim 1, characterized in that: The layout of the flat warehouse heat exchange tubes is vertical U-shaped, horizontal U-shaped, single spiral or double spiral, and the material of the flat warehouse heat exchange tubes is stainless steel or PVC.

4. An energy flat storage system according to any one of claims 1 to 3, characterized in that: The outside of the energy storage tank is covered with an insulation layer.

5. The energy flat warehouse system according to claim 4, characterized in that: The outer surface of the bungalow warehouse roof is coated with heat-reflective heat-insulating paint.

6. The energy flat warehouse system according to claim 5, characterized in that: The energy medium is air, water or coolant.

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