91results about How to "Improve microclimate" patented technology

The present invention provides a preparation and use method of a saline-alkali soil biological improver, corn stalks and cotton stalks are crushed; a peat fertilizer, animal manure, bean dregs, lees, and vinegar residue are mixed in the volume ratio of 1:1:1:1:1 to obtain an organic fertilizer; the crushed corn stalks and cotton stalks prepared in the step 1, the organic fertilizer obtained by the step 2 and a compound fertilizer are uniformly mixed according to the weight ratio of 65-78% : 20-30% : 2-10 %; the mixture obtained in the step 3 is added with water and sealed for fermentation composting, and disinfection sterilization treatment is performed in the composting process; and when the mixture volume is reduced by 1 / 2, the composting is complete. The raw materials are organic manure and acidic organic waste, the saline-alkali soil biological improver can improve soil fertility, improve soil structure, reduce ground surface moisture evaporation, suppress returning salt when the saline-alkali soil biological improver is applied to a saline-alkali land, and the saline-alkali soil biological improver is conducive to the survival of microorganisms, and beneficial to living of ground cover plants, and improves the saline-alkali land ecological environment.

The invention discloses a rainwater garden system for community rainwater flow diversion, peak clipping and ecological purification. The rainwater garden system comprises a community roof rainwater flowing-through facility, a reverse U-shaped buffer flow division pipe, a green land rainwater garden facility and a rainwater well, wherein the community roof rainwater flowing-through facility is connected with the green land rainwater garden facility through two paths; one path is the direct connection with the green land rainwater garden facility, and the other path is the connection with the green land rainwater garden facility through the reverse U-shaped buffer flow division pipe; and the green land rainwater garden facility is also connected with the rainwater well. The reverse U-shaped buffer flow division pipe is used, and a water storage layer, a covering layer, a planting layer, a transition layer, a filling material layer, a water discharge layer and matched pipelines which are sequentially and downwards provided by the downward green land rainwater garden facility from the ground are used, so that the rainwater garden system has the effects of early-period rainwater processing, rainfall runoff flow division, peak clipping and purification regulation and control.

Skin-contact products with a transpiration function such as medical devices or medicinal products, of which face masks, aspirators, ventilators, breast pumps or wound dressings are examples are described especially a skin-contact product with a transpiration function with an improved microclimate at a patient interface material-skin contact area. In an embodiment a material system (10, 20, 30) is described that comprises a hydrophobic silicone base material (11, 21, 31) and a hydrophilic silicone material (12, 22, 32) that is combined with the hydrophobic base material (11, 21, 31). At least a part of the hydrophilic material (12, 22, 32) is in contact with a moist surface (50). The hydrophobic base material (11, 21, 31) provides mechanical and dynamical stability of the material system (10, 20, 30). The hydrophilic material (12, 22, 32) allows for uptake or for diffusion of moisture away from moist surface (50). The material system (10, 20, 30) is utilized to fabricate a patient interface material (41) and forehead pad (42) of a user or patient interface, such as face mask (40), for example, a patient interface mask for positive air pressure therapy. Furthermore, a novel composition for the preparation of hydrophilic silicone materials, suitable for use in the material system (10, 20, 30), is disclosed.

The invention discloses a transformer substation indoor environment safety intelligent control system which comprises an environment control system as well as a fresh air system, an automatic discharging sub-system, a flame-proof sub-system, a safety early-warning system and a plurality of sensors which are mounted in a transformer substation and connected with the environment control system. The system has the functions of remote communication and monitoring; and in an age that more transformer substations are in unmanned management, by using the system, relevant people can query the environment information of the corresponding transformer substation easier and more conveniently, and receive a warning signal of various abnormal conditions immediately and make the corresponding treatment in time.

The present invention relates to a breast prosthesis having at least one contact surface which is intended for contact on a body surface, with the contact surface having at least one means by means of which air circulation and / or an exchange of air can be achieved between the contact surface and the body surface.

The invention provides a cultivation method for interplanting medicinal vegetables in an orchard, solving the problem existing in monoculture. The cultivation method comprises following steps: A. orchard building and planting: 1. orchard building and planting: (1) ridging on planting land; (2) planting hole digging in the ridges; 2. orchard cultivation and management: (1) soil improvement; (2) irrigation and drainage; (3) pruning; (4) flower and fruit thinning; (5) fruit bagging; (6) main insect and disease prevention and treatment; B. medicinal vegetable interplanting and building: 1. Cryptotaenia japonica Hassk interplanting in autumn: (1) sowing; (2) thinning and colonization; (3) new stem and leaf harvesting; (4) fertilizing; (5) seed collecting and crop rotating; 2. Talinum paniculatum (Jacq.) Gaertn. interplanting in spring and summer: (1) sowing; (2) transplanting and replanting; (3) young stem and leaf harvesting; (4) fertilizing; (5) seed and root collecting. The cultivation method makes the most of climate resources of growing seasons. By use of the cultivation method, the multiple cropping index is increased and agricultural consumption between two crops is reduced.

The invention discloses a method for preventing and controlling pests and diseases of bergamot pears by planting herbaceous plants. The method comprises the steps of 1, selecting seeds of gramineous plants; 2, selecting seeds of nectariferous plants; 3, selecting seeds of leguminous plants; 4, uniformly mixing the plant seeds selected in the first to third steps according to the weight ratio of 1:1.5:1, and then conducting uniform broadcast sowing; 5, conducting weeding. Different kinds of grass species are subjected to mixed sowing under bergamot pear trees in a karst area according to a certain proportion, the method integrates the functions of retaining water, fixing soil and optimizing the quality of fruits, the purpose of controlling the pests and diseases is achieved, and the remarkable effect is achieved.

The invention discloses a controllable starch-based biodegradable agricultural mulching film. The agricultural mulching film is prepared from PBAT+PLA or PBAT+PLA+MTPS or PBAT+PLA+MTPS+bagasse cellulose with a chain extender and a mold release agent. Based on the formula, degradation time and degradation efficiency of the biological mulching film can be adjusted and controlled in combination withan under-film drip irrigation technology by adjusting the composition ratio according to climate characteristics as well as growth and development and laws of water and fertilizer requirements of covered crops. The best mulching days for local mulched crops are reached in the safety period, the prospective effects of warming and preserving soil moisture, controlling weeds, reducing chemicals, stabilizing yield and increasing income in the mulching period are ensured, and the film can be degraded in time at the later growth stage or after harvest, and is finally decomposed into water and carbondioxide by soil microorganisms without polluting soil and ecological environment; a cheap modified starch-based composite material and sugarcane cellulose are added to the formula, so that the production cost can be greatly reduced, and the mulching film has better comprehensive performance and good market application prospect.

The invention discloses a paddy field underground stealthy reservoir for a sponge city and a construction method of the paddy field underground stealthy reservoir. The underground stealthy reservoir comprises a foundation course and an air-permeable and anti-seepage course, wherein a filtering wall bodies are arranged around the air-permeable and anti-seepage course; a water storage space is formed between the filtering wall bodies; a honeycombed structure is arranged in the water storage space; the honeycombed structure is formed by building silica sand bricks; the higher side of the water storage space is provided with a distribution well and the lower side of the water storage space is provided with a negative well; a concrete cover plate is arranged on the surfaces of the honeycombed structure, the distribution well and the negative well; and a paddy field mud return course is arranged on the concrete cover plate. The construction method sequentially comprises the following steps: getting preparation for construction, excavating a foundation pit, paving the foundation course, paving the air-permeable and anti-seepage course, paving the honeycombed structure, building the distribution well and the negative well and conducting earthing-up and back-filling. The paddy field underground stealthy reservoir can achieve water absorption, water storage, water seepage and water purification in rainy days, and the stored water, when required, can be 'released' and used, so that the resource utilization and ecological environment protection of the rainwater are promoted.

The invention discloses a combined mobile type wall space greening module which comprises a shell, a water supply dripping irrigation pipe, a drain pipe and plants. The shell comprises a top plate, a bottom plate, a side plate and a back plate; the top plate is provided with inlet openings communicating with the water supply dripping irrigation pipe; the bottom plate is provided with drain holes communicating with the drain pipe; the shell is divided into at least one planting cavity by division plates, and the water holes are formed on the division plates; each planting cavity is provided with a base layer, the outside of the base layer is provided with a blocking net, and the plants are planted in the base layer. A plurality of modules of the combined mobile type wall space greening module can combine with each other and be fixed on the wall space, and are convenient to assemble and disassemble, low in maintaining cost. The combined mobile type wall space greening module is a novel vertical greening module with environmental protection and aesthetics features, and play a very important role in microclimate improving, air purification, pollution reduction, noise prevention, environment beautification and the like.

The invention provides a box catchment and earthing planting system and a method for utilizing the system to conduct reclamation on an open-air pit. The box catchment and earthing planting system comprises a plurality of boxes which are communicated with each other and located in the mine pit, and the bottom shapes of the boxes are equal to the shape of the pit where the boxes are located; the tops of the boxes and the places, at a certain distance from the tops of the boxes, in the boxes are all provided with cover plates, and a plurality of water leaking holes are formed in the positions, opposite to the boxes, of the cover plates; the top of each cover plate is sequentially provided with geotextile, a filtration layer and an earthing planting layer from bottom to top; the box at the most outer side among the boxes is provided with a water inlet. The catchment and earthing planting system can solve the reclamation problem that in the the process of land reclamation, open-air mine pits, deep pits for soil mining and brick firing and waste pit ponds and ditches are difficult to reclaim because of scarce soil sources, the reconstruction of earth surface landscape is achieved, the cultivated area is effectively increased, and the microclimate of farmlands is improved.

The invention provides a modular system of a rainwater organism retention facility which can be installed quickly. The system includes a modular pool body, and a filler unit is arranged in the modularpool body. The modular pool body comprises two lateral modules and multiple middle modules connected to the lateral modules, wherein each lateral module is of a semi-frame structure, the top surfaceof each lateral module is opened, the surface, adjacent to the middle modules, of each lateral module is opened, and the other surfaces of each lateral module are connected with one another; the top surface of each middle module is opened, the two surfaces, connected to corresponding adjacent modules, of each middle module are opened, and the other surfaces of each middle module are connected withone another. The filler unit is made into a prefabricated medium filler structure according to a corresponding size of the pool body and characterized in that the size of the single size is small, installation is easy and convenient, and assembly-type construction can be achieved. A traditional on-site pool construction and medium loading process is changed into a mode of carrying out prefabricated production in a factory and fast installation on site. Not only is the manpower cost saved, but also the time cost is saved, and an expectant disposal effect on rainwater pollutants can be achieved, so that the modular system is a novel environment-friendly facility product for a sponge city.

The invention discloses a wide-narrow row combined with wide-narrow spacing hole-staggered planting method for rice. The planting method includes the following steps of raising rice seedlings, wherein a dry land is selected, and the rice seedlings with four leaves and one heart or five leaves and one heart are planted according to the seedling age requirement; compartment partitioning for transplanting, wherein the land is applied with base fertilizer and then harrowed two days before transplanting, a compartment partitioning device is used for compartment partitioning after land water is clarified, the seedlings are planted according to compartment partitioning marks, seedlings are planted in the land by the ratio of nine thousand and five hundred to ten thousand holes per mu, and two or three seedlings are planted in each hole in a spaced mode; performing formula fertilization; performing irrigation to promoting control; controlling diseases and pests. The wide-narrow row combined with wide-narrow spacing hole-staggered planting method for rice has the effect of double marginal advantages, and the grain setting number and the filled grain number of rice spikes are substantially increased; the ventilating and light penetrating effects are good, the solar energy use ratio is high, the rice seedlings are strong, tall and straight and grow vigorously, the tillering number per plant is large, stems are thick and strong, and disease and pest damage is relieved; a group and individuals coordinate, tillering capacity of per plant is high, the spikes are large, more grains are obtained, enough productive spike groups exist, the microclimate among plants is obviously improved, root systems are developed, the capacity for absorbing nutrients is improved, the spike rate per plant of rice is increased, and the yield increasing effect is remarkable.

The invention discloses a steel fiber / fly ash / red mud water-permeable brick and a preparation method thereof. The steel fiber / fly ash / red mud water-permeable brick is prepared from the following raw materials in parts by weight: 50-70 parts of steel fiber, 15-20 parts of red mud, 20-30 parts of fly ash and 30-40 brick slag particle. The invention also discloses a preparation method of the water-permeable brick. The steel fiber, brick slag particle, fly ash and red mud used as the raw materials are mixed to prepare the water-permeable brick. The brick slag and fly ash are recovered wastes, the red mud is the recovered low-cost raw material, and the cost of the steel fiber is not high; and thus, the low-cost raw materials are utilized to recycle the wastes. The raw materials are sintered at sintering temperature to obtain the high-strength high-water-permeability high-wear-resistance water-permeable brick.

The invention relates to a fog dispersal type unmanned aerial vehicle which comprises an aerial vehicle body. The aerial vehicle body comprises four connecting arms, a rotor wing assembly is arranged at the end of each connecting arm, a controller is arranged in the center of the aerial vehicle body, and a plurality of data sensors are arranged on the side wall of the aerial vehicle body. A battery pack is arranged at the bottom of the aerial vehicle body, the bottom of the aerial vehicle body is connected with external fog dispersal equipment through a connecting frame, and a plurality of spraying holes are formed in one end of the external fog dispersal equipment. Fixed plates are arranged on the two sides of the external fog dispersal equipment, and a solar cell panel is arranged at the upper end of each fixed plate. An antifogging agent is sprayed in the air, fog reduction is achieved on the air, and therefore cost is low, and the use range is wide. The fog dispersal type unmanned aerial vehicle can be applied to the conditions needing fog dispersal within the local range, such as highway traffic environment improving, airport dense fog elimination and disaster relief area microclimate improving.

The invention relates to a crop cultivation method, in particular to a micro-ridge film-covering hole sowing water-saving cultivation method for closely planted crops in irrigation areas. The micro-ridge film-covering hole sowing water-saving cultivation method for the closely planted crops in the irrigation areas is characterized in that the yield-increasing mechanism adopting micro-ridge film-covering furrow irrigation, temperature rising, soil moisture preservation, rainwater harvesting and water saving is utilized, the moisture and fertilizer using efficiency is improved, agricultural microclimate is improved, a soil structure is changed, a photosynthesis environment is optimized, the production limitation problem caused by drought factors on the closely planted crops for a long time is effectively solved, and the yields of spring wheat, malting barley, oilseed rape and other closely planted crops are improved remarkably.

A micro integrated three-dimensional farm, mainly comprising a bearing framework, water storage discs, planting discs, planting soil and bundles of capillary tubes, characterized in that the multiple-layer bearing framework bears the load of all layers of planting modules; the planting discs of the planting modules are placed on the water storage discs; the planting soil in the planting discs is not in direct contact with the water in the water storage discs; an air intermediate layer is reserved between the planting soil and the water in the water storage discs; and the water required by plants, according to the transpiration and evaporation capacity, is automatically conveyed to the planting soil via the bundles of the capillary tubes by capillarity. After adopting the technical scheme, the micro farm can be constructed in a vacant field surrounding a building, on a roofing, in a balcony, in a windowsill or on the outer wall of the building; citizens can plant crops, vegetables, fruits and ornamental plants according to preferences; and the planting system has the characteristics of simple structure, low construction cost, easiness in management and high production efficiency.

The invention discloses a formaldehyde purification robot for household use, which comprises a purifier shell, an accommodation cavity is opened inside the purifier shell, an air intake slot communicating with the accommodation cavity is opened on the front of the purifier shell, the accommodation One side of the inner wall of the cavity is fixedly installed with a purification box, and the purification box is located at the front and back of the air intake slot, and the inside of the accommodation cavity is fixed with a purification box, and the purification box is located at the back of the purification box, and the inner wall of the accommodation cavity An exhaust fan is arranged on one side. The invention sets up a purification box. When formaldehyde passes through the purification box, it will be purified by the purification plate installed in the purification box. The activated carbon adsorption net on the purification plate can effectively absorb the formaldehyde floating in the air, and when the button is pressed , the rotating plate will be rotated, so that the purification plate will pop out, thereby facilitating the replacement of the purification plate, achieving the effect of simple and convenient replacement of the purification plate, thereby ensuring the efficiency of the purifier in removing formaldehyde.

The invention discloses a household formaldehyde eliminating method. A purifier outer shell is internally provided with a storage cavity, the front face of the purifier outer shell is provided with anair inlet groove communicated with the storage cavity, a purification box is fixedly mounted on one side of the inner wall of the storage cavity and positioned on the back face of the air inlet groove, a purification tank is fixedly mounted in the storage cavity and positioned on the back face of the purification box, and a draught fan is arranged on one side of the inner wall of the storage cavity. By arrangement of the purification tank, formaldehyde passing through the purification tank is eliminated through a purification plate in the purification tank, and formaldehyde in air can be effectively adsorbed by an activated carbon adsorption net on the purification plate; when a button is pressed, a rotating plate rotates to pop up the purification plate, so that the purification plate can be replaced conveniently and simply, and formaldehyde elimination efficiency of a purifier can be guaranteed.

The invention belongs to the technical field of in-situ removal of heavy metal pollution of farmland soil environments, and discloses an enriching and transformation ditch device of a protection forest for removal of farmland heavy metals. The enriching and transformation ditch device comprises blind pipes, a water collecting settlement pool ditch, an enriching and transformation island and forest trees, wherein the blind pipes are used for draining the soil spraying water; the enriching and transformation island is built by an enriching and transformation box; the enriching and transformation box sequentially comprises a soil bearing layer, a water permeating filtering layer and a filtering material layer from top to bottom. The enriching and transformation ditch device has the characteristics that the heavy metal pollution of the soil can be efficiently recovered in an in-situ way within the larger range, the heavy metal is enriched and transformed to a wood production terminal, and the problems of secondary pollution and food safety are solved; the advantages of land saving, water saving, energy saving, material saving and farmland sustained ecological growth maintaining are realized; the enriching and transformation ditch device is used as an all-in-one facility for the basic construction of farmland forest nets (islands) and irrigation farmlands, and is also used as an important device for realizing multiple functions, such as basic construction of the farmlands, improving of the small climate of the farmlands, and realizing a wood production base.

EGGOIST multi-level floor equipment system for commercial poultry maintenance combining the advantages of poultry's free-range run with periodical automated manure removal feature of the cage housing method. The optimum dimensions of the aviary body frame are calculated as per special formulae for the length and width depending on the nest type and arrangement. EGGOIST equipment system allows to improve the microclimate parameters of the aviary, to ensure the consistently high sanitary and hygienic conditions and the lowering of egg-laying hens' morbidity rate, and to dramatically increase production rates per farmland area unit.

The invention discloses a planting method for young tea garden shading. Tea tree seedlings are planted in the planting mode that wide lines and narrow lines are sequentially arrayed and two plants are planted in each line, and a line of rapid-growth mushrooms are planted between every two adjacent wide lines and watered till soil is wet through; nitrogen fertilizer is applied to rapid-growth mushrooms once after planting, fertilizer application of rapid-growth mushrooms and fertilizer application of tea tree seedlings are managed synchronously, so rapid-growth mushrooms can grow to be 120-150 cm high four months later; in winter, rapid-growth mushrooms are harvested, stalk is evenly laid between lines of a tea garden after harvesting. The shading method is easy and convenient to operate and low in cost, the effective shading effect can be achieved within a short period of time, and good effects for improving tea tree growth and fresh tea leaf quality are achieved.

The invention discloses a cultivation technique for interplanting spring brassica napus in young large cherry trees. Three-dimensional temperature-light interplanting is achieved by fully utilizing the land space, light, temperature, water and fertilizer resources of a young large cherry orchard, utilizing the growth period temperature-light requirement difference between the brassica napus and the cherry trees and utilizing the characteristics that the brassica napus grows fast in the early period, the cherry trees grow fast in the later period, the brassica napus enters a three-dimensional space meta-position of the ripen period and the harvest period, and the brassica napus and the large cherry trees do not compete for light and temperature. A positive effect can be generated for agricultural structure regulation and development mode changing of the broad northern region in China, so that planting industry structure regulation of the northeast region in China is more reasonable.

The invention provides an intensive farmland ecological strengthening model, and relates to the technical field of intensive farmland ecological strengthening. The intensive farmland ecological strengthening model comprises a belt rotation inter-planting model in a farmland, an irrigation and drainage system ecological corridor model at the boundary of the farmland, a shrub-growing grassland three-dimensional ecological net model at the boundary of the farmland and an ecological restoration model in a non-agricultural plate, wherein the belt rotation inter-planting model involves at least twocrops; the irrigation and drainage system ecological corridor model involves irrigation and drainage ditches and vegetation; the shrub-growing grassland three-dimensional ecological net model involvesthe step that a plant belt is constructed around a piece of a paddy field and by farmland roads; the ecological restoration model in the non-agricultural plate involves forest patches and the steps of increasing undergrowth vegetation, building a shrub-growing grassland three-dimensional protective belt around town patches and building a plant intercepting belt in wetland patches of rivers, lakesand ponds. The intensive farmland ecological strengthening model can achieve the purposes of balancing soil nutrients, reducing crop pests and diseases, and improving the ecological functions of thefarmland.

The invention discloses an adjustable windproof net for an orchard and belongs to the technical field of windproof nets. The windproof net comprises two first fixed upright posts, a cross beam, a plurality of second fixed upright posts and movable upright posts, wherein the top ends of the first upright posts are connected by the cross beam; the upper ends of the second fixed upright posts are connected with the cross beam; the lower ends of the second fixed upright posts are arranged on the ground; a protecting net is arranged between each movable upright post and the corresponding second fixed upright post; a fixing rope is arranged at the upper ends of the second fixed upright posts; the protecting nets and the upper ends of the movable upright posts are suspended on the fixing rope; a plurality of through holes are formed in the second fixed upright posts and the movable upright posts; pulling ropes are arranged in a mode of penetrating through the through holes; a plurality of fixed pulleys are arranged on the first fixed upright posts; the heights of the fixed pulleys arranged on the two first fixed upright posts are identical; a traction device is arranged on the outer side of one first fixed upright post; and the pulling rope bypasses the two fixed pulleys and the traction device. The adjustable windproof net disclosed by the invention can be folded and unfolded at any time and has the advantages of obvious windproof effect, high stability and easiness in construction.

The invention provides a cultivation type pruning method of lemon trees and lemon gardens and relates to the technical field of planting. The pruning method promotes the cultivation of lemon trees with higher yield and better quality through targeted pruning of saplings, fruiting trees, adult trees and aging trees. The pruning of the saplings enables sufficient preparation for early fruiting, andmakes the distribution of auxiliary branches on trunks and branches reasonable and even. Targeted pruning of the fruiting trees in the initial stage can slow down the growing trend of the trees, promote the generation of a large number of high-quality fruiting mother branches, preserve flowers and the fruits, and rapidly increase the yield. The combination of promoting and controlling measures promotes the differentiation, flowering and fruiting of flower buds. The pruning of the adult trees can balance and improve lighting-receiving condition of the trees, coordinate the relative balance between growth and fruiting, and overcome the phenomenon of large fruits fluctuations in different years. The method can accelerate the differentiation and formation of fruiting branches and the differentiation of the flower buds, and promote the lemon trees to bear fruits in advance. Targeted pruning of the aging trees can increase the yield during the renewal period.

The invention relates to the technical field of a side slope protection structure, and in particular relates to an ecological protection structure for a broken rock steep slope and a construction method thereof. The ecological protection structure for the broken rock steep slope comprises a seed soil layer, a steel wire net layer, a nutrient soil base layer and a concrete lattice beam which are arranged on a slope surface from top to bottom in sequence, wherein vegetative bags positioned under the nutrient soil base layer are stacked in lattices of the concrete lattice beam; the lower part ofthe lattice beam is buried in the slope surface; and an ear wall is arranged at the lower part of the lattice beam. The ecological protection structure can effectively prevent landslide and can also ensure the normal growth of vegetation, thus playing an excellent protective effect on a side slope.

The invention relates to an air duct system, in particular to an attached type air duct system for a building external wall. In seriously polluted street canyons where automobile exhaust is released massively, the problem of air pollution concentration in the street canyons is difficult to solve due to adverse weather conditions such as calm wind and temperature inversion, and the microclimate of a local environment is difficult to improve. The attached type air duct system for the building external wall comprises a bottom air tunnel assembly, a top air tunnel assembly, a vegetation interlayer and a plurality of standard part air tunnel assemblies. The top air tunnel assembly, the standard part air tunnel assemblies and the bottom air tunnel assembly are sequentially communicated from top to bottom and are all located on the building external wall. The bottom end of a bottom air tunnel body is communicated with an air intake hood, the bottom of the air intake hook is a main air inlet, a lateral air inlet is formed in the sidewall of the air intake hood, and the bottom air tunnel body is fixedly connected to the building external wall through a fixing clamp. An air hood is arranged on the top of a top air tunnel body, and a diagonal brace is obliquely and fixedly connected between the top air tunnel body and a building top floor. The attached type air duct system for the building external wall is used for improving the quality of air between buildings.