Growth factor control system for plant factories based on fresh air exchange and winery waste heat

Abstract

The present invention discloses a growth factor control system for a plant factory based on fresh air exchange and waste heat from a winery, and belongs to the field of temperature control devices for plant factories. It includes a temperature-controlled hydroponic planting rack and a temperature-controlled water pipe. The temperature-controlled hydroponic planting rack includes two relatively arranged supports, and a plurality of water tanks are arranged on the two supports. The temperature-controlled water pipe passes through each water tank from bottom to top in sequence. A water inlet is arranged at one end of the temperature-controlled water pipe, and a water outlet is arranged at the other end of the temperature-controlled water pipe. The water inlet is connected to the wastewater pipe of the winery. The present invention can fully apply the waste heat of the winery to the plant factory, which is energy-saving and environmentally friendly. In the cold winter or when the water temperature in the plant factory is low, cooling water after heat exchange in the winery is introduced to reduce the energy consumption of heating the water temperature in the plant factory. At the same time, the air in the plant factory is replaced and circulated by fresh air exchange, and the air conditioning system is assisted to replace the indoor gas, and the indoor temperature and humidity are controlled to ensure photosynthesis in the plant factory and ensure plant growth conditions.

Description

Technical Field

[0001] The invention belongs to the technical field of temperature control devices for plant factories, and in particular to a growth factor control system for plant factories based on fresh air exchange and winery waste heat. Background Art

[0002] Plant factory is an advanced stage of modern facility agriculture development. It is a high-investment, high-tech, and fine-equipped production system that integrates biotechnology, engineering technology, and system management. It frees agricultural production from the constraints of natural ecology and is a factory-based agricultural system that produces plant products on a planned annual basis. It is one of the most dynamic and potential areas for absorbing and applying high-tech achievements in the process of agricultural industrialization, and represents the future direction of agricultural development. Plant factory is an efficient agricultural system that achieves continuous production of crops throughout the year through high-precision environmental control within the facility. It uses intelligent computers and electronic sensor systems to automatically control environmental conditions such as temperature, humidity, light, CO2 concentration, and nutrient solution for plant growth, so that the growth and development of plants in the facility is not or is rarely restricted by natural conditions. It is a labor-saving production method.

[0003] Carbon dioxide concentration, plant water supply temperature and ambient temperature are factors that affect plant growth. These factors affect plant photosynthesis and play a vital role in plant growth and development. Studying the effects of carbon dioxide concentration and temperature on plant growth in plant factories and optimizing related environmental parameters is of great significance for the efficient and healthy growth of plants in plant factories.

[0004] However, the inventors found that an important factor limiting the promotion and development of plant factories is high energy consumption and high investment. Winters in the north are long and cold, and traditional plant factories rely on air conditioning and electric heating to regulate the temperature and water temperature of the plant factory environment. This method increases the consumption of electricity in plant factories and is limited in large-scale promotion. At the same time, the inventors also found that the main energy consumption of raw liquor production in brewing companies is in steaming and distilling. During this period, the cooling water generated by heat exchange still contains a lot of heat energy. If this part of heat energy and water resources can be fully utilized, it will greatly reduce the energy consumption of breweries. Summary of the invention

[0005] The purpose of the present invention is to provide a growth factor regulation system for a plant factory based on fresh air exchange and waste heat from a winery, which can fully utilize the waste heat from the winery for the plant factory, save energy and protect the environment, and introduce cooling water after heat exchange in the winery in the cold winter or when the water temperature in the plant factory is low, thereby reducing the energy consumption of heating the water temperature in the plant factory. At the same time, the air in the plant factory is replaced and circulated by fresh air exchange, assisting the air conditioning system to replace the indoor gas, controlling the indoor temperature and humidity, ensuring photosynthesis in the plant factory, ensuring plant growth conditions, and solving the problems in the prior art.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a growth factor regulation system for a plant factory based on fresh air exchange and waste heat from a winery, comprising a temperature-controlled hydroponic planting rack and a temperature-controlled water pipe. The temperature-controlled hydroponic planting rack comprises two relatively arranged supports, and a plurality of water tanks are arranged on the two supports. The temperature-controlled water pipe passes through each water tank in sequence from bottom to top. A water inlet is arranged at one end of the temperature-controlled water pipe, and a water outlet is arranged at the other end of the temperature-controlled water pipe. The water inlet is connected to a wastewater pipe of the winery.

[0008] Preferably, the cross-sectional shape of the support is a convex shape.

[0009] Preferably, the support includes a cross bar arranged at the bottom and a support arm arranged in the middle of the cross bar.

[0010] Preferably, the temperature-control water pipe passes through the side wall of the next water tank and the support arm of the support in sequence, is bent outside the support arm, and then passes through the side wall of the previous water tank to enter the previous water tank.

[0011] Preferably, hot water from winery fermentation flows through the winery wastewater pipeline.

[0012] Preferably, a water pump is also provided on the pipeline connecting the water inlet and the winery wastewater pipeline.

[0013] Preferably, the portion of the temperature-control water pipe located in the water tank is also provided with heat exchange fins.

[0014] Preferably, a total heat exchanger is also included, which includes a heat exchange core and an exhaust duct, a fresh air duct, a return air duct and a supply air duct respectively connected to the heat exchange core, the return air duct is connected to the exhaust duct through the heat exchange core, and the supply air duct is connected to the fresh air duct through the heat exchange core. The heat exchange core is used to recover heat or cold in the exhaust gas and preheat or precool the introduced fresh air.

[0015] Preferably, an indoor air supply outlet is provided at the end of the air supply duct, and an indoor air return outlet is provided at the end of the return air duct.

[0016] Preferably, the total heat exchanger is arranged on the top of the plant factory by hanging bolts.

[0017] The present invention has the following beneficial effects:

[0018] 1. The present invention can make full use of the waste water with residual heat from the winery, introduce the waste water into the temperature-controlled water pipe of the plant factory, and exchange heat with the water in the temperature-controlled hydroponic planting rack, thereby controlling the temperature of the water in the temperature-controlled hydroponic planting rack, achieving the effect of energy saving and emission reduction, avoiding the high energy consumption method of simply using electric heating and air conditioning to regulate the water temperature and indoor temperature of the plant factory in the prior art, which is conducive to the promotion of plant factories.

[0019] 2. The total heat exchanger of the present invention can replace the gas in the plant factory in time to ensure the indoor carbon dioxide concentration, which is beneficial to plant photosynthesis. At the same time, it can recover the heat or cold of the indoor exhaust air, and then use the recovered heat to heat the fresh air, and use the recovered cold to cool the fresh air. While regulating the indoor carbon dioxide concentration, it can also meet the temperature regulation of the plant factory in cold or hot seasons.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the temperature-controlled hydroponic planting rack of the present invention;

[0023] Figure 2 This is a schematic diagram of the front view of the temperature-controlled hydroponic planting rack of the present invention;

[0024] Figure 3 This is a schematic diagram of the side structure of the temperature-controlled hydroponic planting rack of the present invention;

[0025] Figure 4 This is a schematic diagram of the top view of the temperature-controlled hydroponic planting rack of the present invention;

[0026] Figure 5 It is a schematic diagram of the overall structure of the total heat exchanger of the present invention.

[0027] In the accompanying drawings, the list of components represented by each reference numeral is as follows: 1 temperature-controlled hydroponic planting rack, 2 temperature-controlled water pipe, 3 support, 4 water tank, 5 water inlet, 6 water outlet, 7 cross bar, 8 support arm, 9 full heat exchanger, 10 heat exchange core, 11 exhaust duct, 12 fresh air duct, 13 return air duct, 14 supply air duct, 15 indoor supply air outlet, 16 indoor return air outlet, 17 hanging bolt. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0029] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", "all around" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] Embodiment 1:

[0031] See also Figure 1-5 As shown, the present invention is a growth factor control system for a plant factory based on fresh air exchange and waste heat from a winery, comprising a temperature-controlled hydroponic planting rack 1 and a temperature-controlled water pipe 2. The temperature-controlled hydroponic planting rack 1 comprises two relatively arranged supports 3, and a plurality of water tanks 4 are arranged on the two supports 3. The temperature-controlled water pipe 2 passes through each water tank 4 in sequence from bottom to top. A water inlet 5 is arranged at one end of the temperature-controlled water pipe 2, and a water outlet 6 is arranged at the other end of the temperature-controlled water pipe 2. The water inlet 5 is connected to the wastewater pipe of the winery.

[0032] In this embodiment, the growth factor regulation system for plant factories based on fresh air exchange and waste heat from the winery includes a temperature-controlled hydroponic planting rack 1 and a temperature-controlled water pipe 2 for regulating the water temperature of the plant water supply. The temperature-controlled water pipe 2 is connected to the winery wastewater pipe, so that the wastewater with waste heat in the winery wastewater pipe is used to exchange heat with the water in the water tank 4 of the temperature-controlled hydroponic planting rack 1, thereby achieving the effect of energy saving and emission reduction.

[0033] In order to make the wastewater in the winery wastewater pipeline flow continuously into the temperature-controlled water pipe 2, a water pump is arranged on the pipeline connecting the water inlet 5 with the winery wastewater pipeline to provide power for the flow of wastewater with residual heat.

[0034] In this embodiment, the water inlet 5 is arranged near the bottom of the support 3 , and the water outlet 6 is arranged near the top of the support 3 .

[0035] like Figure 1-3 As shown, in this embodiment, the number of water tanks 4 is set to 3. The 3 water tanks 4 are evenly distributed along the height direction of the support 3.

[0036] In order to enhance the stability of the support 3 and facilitate the arrangement of the water tank 4, the structure of the support 3 includes a cross bar 7 arranged at the bottom and a support arm 8 arranged in the middle of the cross bar 7, and the cross-sectional shape of the support 3 is a convex shape.

[0037] like Figure 1-3 As shown, in order to facilitate the use of the temperature-controlled water pipe 2 to exchange heat with the water in the water tank 4 of the temperature-controlled hydroponic planting rack 1, the temperature-controlled water pipe 2 passes through the side wall of the next-layer water tank 4 and the support arm 8 of the support 3 in sequence, is bent outside the support arm 8, and then penetrates into the upper part of the support arm 8, and then penetrates into the side wall of the upper-layer water tank 4 to enter the upper-layer water tank 4, thereby achieving the purpose of using the same temperature-controlled water pipe 2 to exchange heat with the water in multiple water tanks 4.

[0038] In order to enhance the heat exchange of the water in the water tank 4, heat exchange fins are provided at the portion of the temperature control water pipe 2 located in the water tank 4, thereby accelerating the completion of heat exchange and saving heat exchange time.

[0039] In this embodiment, the growth factor control system for plant factories based on fresh air exchange and winery waste heat also includes a total heat exchanger 9 for replacing the internal gas of the plant factory and regulating the indoor temperature and humidity. The total heat exchanger 9 includes a heat exchange core 10 and an exhaust duct 11, a fresh air duct 12, a return air duct 13 and a supply air duct 14 respectively connected to the heat exchange core 10. The end of the supply air duct 14 is provided with an indoor supply air port 15, and the end of the return air duct 13 is provided with an indoor return air port 16. The return air duct 13 is connected to the exhaust duct 11 through the heat exchange core 10, and the supply air duct 14 is connected to the fresh air duct 12 through the heat exchange core 10. The heat exchange core 10 is used to recover the heat or cold in the exhaust gas and preheat or precool the introduced fresh air. In the winter season, the outdoor temperature is too low and the indoor temperature is higher than the outdoor temperature. When the indoor air is replaced, the heat exchange core 10 is used to recover the heat in the exhaust gas and use the recovered heat to preheat the outdoor fresh air, which is conducive to maintaining the indoor temperature and saving energy at the same time. In the summer season, the outdoor temperature is too high and the indoor temperature is lower than the outdoor temperature. When replacing the indoor air, the heat exchange core 10 is used to recover the cold energy in the exhaust gas and use the recovered cold energy to pre-cool the outdoor fresh air, which is also helpful to ensure the indoor temperature.

[0040] In order to facilitate the replacement of gas, in this embodiment, the total heat exchanger 9 is set on the top of the plant factory through hanging bolts 17.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Growth factor control system for plant factories based on fresh air exchange and winery waste heat, It is characterized in that It comprises a temperature-controlled hydroponic planting frame and a temperature-controlled water pipe, wherein the temperature-controlled hydroponic planting frame comprises two oppositely arranged supports, a plurality of water tanks are arranged on the two supports, and the temperature-controlled water pipe passes through each water tank in sequence from bottom to top, a water inlet is arranged at one end of the temperature-controlled water pipe, and a water outlet is arranged at the other end of the temperature-controlled water pipe, and the water inlet is connected to the wastewater pipe of the winery; The winery wastewater pipeline is filled with winery fermentation hot water; A water pump is also provided on the pipeline connecting the water inlet and the winery wastewater pipeline; The portion of the temperature-control water pipe located in the water tank is also provided with heat exchange fins; The temperature-control water pipe passes through the side wall of the next layer of water tank and the support arm of the support in sequence, is bent outside the support arm, and then passes through the side wall of the previous layer of water tank to enter the previous layer of water tank; It also includes a total heat exchanger, which includes a heat exchange core and an exhaust duct, a fresh air duct, a return air duct and a supply air duct respectively connected to the heat exchange core, the return air duct is connected to the exhaust duct through the heat exchange core, the supply air duct is connected to the fresh air duct through the heat exchange core, and the heat exchange core is used to recover heat or cold in the exhaust gas and preheat or precool the introduced fresh air; An indoor air supply port is arranged at the end of the air supply duct, and an indoor air return port is arranged at the end of the air return duct.

2. The growth factor control system for plant factories based on fresh air exchange and winery waste heat according to claim 1, It is characterized in that The cross-sectional shape of the support is a convex shape.

3. The growth factor control system for plant factories based on fresh air exchange and winery waste heat according to claim 1, It is characterized in that The support comprises a cross bar arranged at the bottom and a support arm arranged at the middle of the cross bar.

4. The growth factor control system for plant factories based on fresh air exchange and winery waste heat according to claim 1, It is characterized in that The total heat exchanger is arranged on the top of the plant factory through hanging bolts.

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