69 results about "North wall" patented technology

The invention discloses an active solar energy greenhouse heat collecting and storing system which combines a north wall of an agricultural greenhouse with solar energy heat collecting and phase change heat storing. A solar energy heat absorbing plate and a heat storing unit provided with phase change heat storing material are integrated on the north wall of the agricultural greenhouse. In the daytime, the sunlight irradiates on the heat absorbing plate, the solar radiant energy is converted into the heat energy, and the heat is transferred to the heat storing unit after the heat absorbing plate is heated. The phase change material in the heat storing unit is molten after being heated and the heat is stored. At night, the heat storing unit slowly radiates heat to the greenhouse through radiation; when the temperature is too low, a fan is started to drive the air to flow so as to lead the heat to be radiated quickly from the heat storing unit for heating the greenhouse at night, thereby achieving the purpose of heat storing in the daytime and heating at night for the agricultural greenhouse. The invention has the advantages of simple structure, small occupied area and high thermal efficiency and can effectively improve the night temperature of the agricultural greenhouse and further improves the crop yield by full use of the solar energy and the heat insulating performance of the greenhouse under the premise of consuming few conventional energy resources (electric energy of the fan).

The invention discloses a method for simultaneously planting vegetables and breeding Chai chickens in a greenhouse. The method comprises the steps of: firstly building a simple and easy chicken coop for flat culturing Chai chickens on a net in the greenhouse; forming a window in a position which is in a north wall and is as high as a net bed, so that grazed chickens can pass in and out of the greenhouses and a vacant lot between the greenhouses; performing crop rotation and / or intercroping to plant the vegetables in the greenhouses; when the vegetables are planted, using a fertilizer applying manner that an organic chicken manure fertilizer made from manure of the Chai chickens is used as a main fertilizer and a chemical fertilizer is used as an auxiliary fertilizer; providing vegetable scraps for the Chai chickens to be eaten; and breeding the Chai chickens in a combined manner of grazing the Chai chickens at the vacant lot between the greenhouses and stall-feeding the Chai chickens in the chicken coop for flat culturing the Chai chickens on the net. According to the method, firstly, the vegetables absorb carbon dioxide and emit oxygen, the Chai chickens absorb the oxygen and emit the carbon dioxide, so that in the aspect of living environment, the vegetables and the Chai chickens complement each other; in addition, the chickens can obtain sufficient green feeds all the year round, so that the needs of the chickens for various vitamins and mineral elements are met. Through the adoption of the method, the production performance of the Chai chickens is improved, the yield of the vegetables is increased, and the method has the characteristic that people obtain benefits for many years after investing one time.

A solar energy harvester comprises: a planar solar harvester panel serving to absorb sunlight and convert it to useful power such as electricity and / or heat; a planar north (in the northern hemisphere) wall which is specularly reflective on its south side, running east-west and positioned adjacent the north end of the harvester panel. The reflective north wall may be considered to create a second, equal, virtual harvester panel to convert additional energy, or alternately to create a virtual sun to illuminate the harvester panel from the north. The solar energy harvester effectively doubles the output of useful power of a prior art solar harvester panel alone.

The invention discloses a winter ventilation and heat-preservation system of a window type animal house and relates to the field of livestock raising engineering. In the system, wall bodies comprises a south wall, a north wall, an east wall and a west wall; the wall bodies and a ceiling are of heat-preservation structures; the ceiling and the upper parts of the wall bodies are connected to form a closed space; windows are arranged on the west wall and the north wall; air inlets are arranged on the south wall or are simultaneously arranged on the south wall and the north wall, and are arranged at the upper parts of the wall bodies and below the ceiling; an air exhausting opening passes through the ceiling; and a hot air pipe is arranged on the wall bodies below the air inlets. The wall bodies and the ceiling of the system are of the energy-saving and heat-preservation structures, and a door and the windows are closed and not ventilated, so that the temperature in the house can be effectively kept and heat supply energy consumption is reduced; the air inlets are arranged at the upper parts of the wall bodies and a flow guide plate and the hot air pipe are arranged below the air inlets in a matched manner, so that fresh air entering the animal house is effectively pre-heated and then reaches the bodies of domestic animals; and therefore the cold stress of the domestic animals is avoided and the morbidity of the domestic animals is reduced.

The invention discloses a greenhouse with functions of dehumidification, heat storage and cooling, which comprises a greenhouse body and a system with functions of dehumidification, heat storage and cooling. The system with functions of dehumidification, heat storage and cooling comprise a circulating water unit, an air cooling and dehumidifying unit and a heat storage unit. The air cooling and dehumidifying unit comprises an axial fan and a shutter. Cooling or heating is carried out on hot, moist air or cold, moist air in the specific greenhouse by utilizing the axial fan and the shutter of the air cooling and dehumidifying unit, and the cooling water circulation or heating water circulation in the practical heat storage unit is also utilized, thereby reaching the effects of cooling and dehumidification in the indoor environment of the greenhouse of high temperature and high humidity, and the effects of heat storage and dehumidification in the indoor environment of the greenhouse of low temperature and high humidity. A double layer plastic film is arranged between a lower cantilever beam and a distributed water pipe, and the effects of heat preservation and heat storage of the greenhouse at low temperature can be strengthened by expandable and retractable cotton quilts which are arranged between the plastic films. Air vents are arranged on the south wall or the north wall, and the wet air can be discharged from the air vent, thereby being more beneficial to the photosynthesis of plants and the heat storage process of the greenhouse.

The invention belongs to the field of the green building technology and renewable energy resource application, and relates to a low-energy-consumption precast concrete component steam curing plant building construction method based on solar efficient utilization. A standing area is arranged on the north side, and a temperature increase curing technology, a constant-temperature curing technology and a cooling curing technology are designed on the south side from west to east; a temperature increase curing workshop and a constant-temperature curing workshop adopt light-transmitting roofs, and hat preservation coverage articles are arranged on the outer portions of the light-transmitting roofs at night; and a concrete roof is adopted as a roof of cooling curing; the depth of each curing workshop is 12 m; meanwhile, the length ratio of the curing workshops adopts the ratio of the curing time needed for the temperature increase technology, the constant temperature technology and the coolingtechnology as the determining principle; the height of a north wall of each curing workshop is 2.1 m; the height of a south wall of each curing workshop is 3.1 m; a phase change heat storage wall body, a concrete wall body and a heat preservation board are arranged on the north wall of each of the temperature increase curing workshop and the constant-temperature curing workshop from inside to outside; and a concrete wall body and a heat preservation board are arranged on a north wall of a cooling curing workshop from inside to outside. According to the method, the solar guarantee rate in thePC component steam curing technology process is improved in multiple directions, and steam energy, production cost and carbon emissions are reduced.

The invention discloses a sunshade cooling ventilating device suitable for a set-back model building solar house, and belongs to the field of set-back model building solar houses. A day-lighting roof is arranged above a south wall; the solar house is equipped with an electric sunshade roller shutter inside the south wall and the day-lighting roof; a ventilating channel is formed among the electric sunshade roller shutter, the south wall and the day-lighting roof; an air inlet with an adjustable opening degree is formed in the upper portion of a north wall; an air outlet with an adjustable opening degree is formed in the top end of the day-lighting roof; a temperature sensor and an intelligent controller are arranged in the solar house; the intelligent controller is connected with the temperature sensor; and the air inlet with the adjustable opening degree, the air outlet with the adjustable opening degree and the electric sunshade roller shutter are controlled by an intelligent controller to work.

The invention discloses a sunlight greenhouse adopting a pluggable heat insulation wall body. A north wall body, an east wall body, and a west wall body are formed by alternatively assembling a first structural wall body module and a second structural wall body module, and a top layer module, wherein the first structural wall body module is a rectangular integrated structure of which top face is provided with a plug head and a bottom part is provided with a plug groove; the second structural wall body module is an integrated structure formed by two crossly symmetrical first structural wall body modules and connected side faces; the top layer module is provided with two structures respectively including a rectangular structure of which bottom face is provided with a plug groove and a rectangular structure of which bottom face is provided with two plug grooves; every module is poured and shaped by adopting a five-layered heat insulation structure; in the five-layered structure, the middle layer is a framework layer; both sides of the framework are fireproof heat insulation layers; two outsides of the fireproof heat insulation layer are respectively coated with solar selective absorbing coating and heat insulation coating. The sunlight greenhouse has the advantages that the heat insulation effect is good, the sunlight greenhouse can be plugged and pulled instantly, and wall height and length can be changed according to production demand.

The invention discloses a comprehensive RC heat transfer model of a floor radiation energy supply system based on building design parameters. The comprehensive RC heat transfer model is formed by coupling a cooling component RC simplified model, an unstable-state RC heat transfer model of a multi-layer wall body and a room comprehensive heat transfer RC network model. The cooling component RC simplified model is formed by coupling a pi-type RC network heat transfer model between a water supply pipe and a core temperature layer and a multi-layer wall RC finite difference model between the core temperature layer and the upper and lower surfaces of a cooling component; wherein the unstable-state RC heat transfer model of the multilayer wall body comprises a south wall model, an east wall model, a ceiling model, a west wall model and a north wall model; a room comprehensive heat transfer RC network model; wherein a group of radiation surface thermal resistance and convection heat exchange thermal resistance which are connected in series are respectively arranged between the space core temperature point and the multilayer wall RC finite difference model, the south wall model, the east wall model, the ceiling model, the west wall model and the north wall model, and a radiation space thermal resistance is connected between any two radiation surface thermal resistances.