46results about How to "Regulate temperature and humidity" patented technology

The invention relates to a house type radiation tail end air conditioner system and control system, and relates to the technical field of independent temperature and humidity control air conditioners. The house type radiation tail end air conditioner system comprises a cold and heat source, a fresh air handling unit, a water dividing and collecting device, a radiation tail end, an air dividing device, an indoor air supply and exhaust pipeline, an indoor air supply opening, an exhaust fan, an air outlet, and an automatic control system, wherein the cold and heat source is connected in series with the water dividing and collecting pipeline through a water pipe, and is connected in series with the fresh air handling unit through a water pipe; the fresh air handling unit is connected in series with the air dividing device, the indoor air supply and exhaust pipeline and the indoor air supply opening; the fresh air handling unit is connected in parallel with the water dividing and collecting device; the water dividing and collecting device is connected in series with the radiation tail end; and the air exhaust fan is connected in series with the air outlet; the automatic control system goes through the whole system. The house type radiation tail end air conditioner system solves the problems of inconvenience in installation in a small room and difficulty in time-sharing and separate-room intelligent control, and is particularly applicable to buildings such as an apartments and a single villa.

The invention relates to a process for producing formaldehyde-removing solid wood flooring. The process comprises the following steps of: processing a surface board, processing a core board, processing a base board, glue pressing and compounding, fine processing, coating the surface, and forming the finished product. The process has the advantages of strong natural visual sensation, comfortable foot sensation, good material quality, easy processing, cyclic utilization, good geothermy adaptability, strong stability, more simple and convenient construction and installation, excellent environmental performance, great increase of comprehensive utilization ratio of timbers and special effects on adsorbing and degrading free formaldehyde in indoor air.

The invention discloses a fly indoor scale feeding room belonging to the technical field of fly cultivation. The fly indoor scale feeding room is characterized by comprising a room body, wherein the room body comprises all-around vertical surfaces and a roof, wherein an internal floor of the room body is provided with a water tank, an oviposition luring channel, a feeding area and an eclosion area, wherein landing members for flies are arranged in the room body, and operating holes are arranged on the vertical surfaces. The invention aims at providing a fly indoor scale feeding room which has high room utilization rate, large feeding scale, convenient and safe management and high work efficiency, can avoid escaping of adult flies and is used for culturing flies.

The invention discloses a PC stone-imitated material water permeable brick. The PC stone-imitated material water permeable brick comprises a surface material layer and a bottom material layer. The surface material layer accounts for 11-15 parts of a total weight of the water permeable brick, and the bottom material layer accounts for 85-89 parts of the total weight of the water permeable brick. Inthe surface material layer, natural color sand accounts for 75-86 parts of a weight of the surface material layer, cement accounts for 14-25 parts of the weight of the surface material layer, dispersible latex powder accounts for 0.2-0.5 part of the weight of the surface material layer, and water accounts for 3.92-7 parts of the weight of the surface material layer. In the bottom material layer,aggregate stones account for 77-80 parts of the weight of the bottom material layer, the cement accounts for 20-23 parts of the weight of the bottom material layer, and the water accounts for 4.48-5.15 parts of the weight of the bottom material layer. The invention further discloses a preparation technology for the PC stone-imitated material water permeable brick. The water permeable brick has good layering sense, and further has a good water-retaining property and water permeability, the whole preparation technology for the water permeable brick is simple, and processing efficiency is high.

The invention relates to a constant-temperature heating and constant-humidity humidifying device comprising: a refrigeration cycle system, a heating cycle system, an internal cycle system, an external cycle system, a water tank, and a control unit. The refrigeration cycle system comprises a refrigeration compressor, a first condenser, a first expansion valve, and a first evaporator; the heating cycle system comprises a heat pump compressor, a second condenser, a second expansion valve, and a second evaporator; the internal circulation system communicates with the control space via a duct and includes an internal circulation humidifier, a first evaporator and a second condenser; the external cycle system communicates with the external environment via a duct and includes an external circulation humidifier, a second evaporator and the first condenser; the water tank communicates with the first evaporator, the second evaporator, the internal circulation humidifier, and the external circulation humidifier; the control unit controls the operation of the refrigeration compressor, the heat pump compressor, the internal circulation humidifier, and the external circulation humidifier. As a result, the constant-temperature heating and constant-humidity humidifying device is possible to adjust different temperature and humidity of the control space and to avoid adding water to the water tank.

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 recycled aggregate water-permeable pavement structure and a paving method. The recycled aggregate water-permeable pavement structure comprises geotextile fabric, a water-permeable base layer, a water-permeable lower layer, a water-permeable upper layer and a color layer which are sequentially arranged on a foundation from bottom to top, wherein the thickness ratio of thewater-permeable base layer, the water-permeable lower layer and the water-permeable upper layer is 6-10:2-3:1-2; the water-permeable base layer is made of 0-10 parts by weight of cement, 0-3 parts byweight of water-permeable concrete binder, 87-100 parts by weight of 5-31.5 mm continuous grain size grading recycled brick-concrete aggregate, and 10-15 parts by weight of water in a rolling manner;the recycled brick-concrete aggregate of the water-permeable base layer is the 5-31.5 mm continuous grain size grading recycled aggregate; a crushing value of the recycled brick-concrete aggregate isnot more than 30%; the proportion of aggregate with grain size grading less than 5 mm in the recycled brick-concrete aggregate is not more than 10%; and the proportion of impurities is not more than0.02%. The recycled aggregate water-permeable pavement structure has better repeatability and reproducibility, and can increase the porosity and the rainwater permeability of the ground. Rainwater infiltrating into soil can not only conserve groundwater but also reduce the rain and flood load in urban areas so as to significantly improve the urban ecological environment.

The invention discloses an intelligent vertical greening planting box. The intelligent vertical greening planting box comprises a planting box body and a planting pot, wherein the planting box body is a box body formed by a front plate, a rear plate, a left side plate, a right side plate, a cover plate and a base plate and is also a supporting body for the planting pot; a control circuit is arranged in the planting box body; a voice module, a display module and a time module are also arranged on the control circuit; the planting pot is arranged in a mounting slotted hole of the planting box body, the planting pot is connected with the planting box body by virtue of a planting pot sliding chute and a planting pot sliding rail, and the planting pot can be pushed into or pulled out of the planting box body by virtue of the planting pot sliding chute and the planting pot sliding rail. By adopting the technical scheme, the defects of the prior art are overcome, plants can be replaced at any time according to landscape requirements, intelligent control on plant drop irrigation and illumination is realized, convenience and high efficiency are realized, soil erosion is prevented, and landscape maintaining time is long.

The invention discloses laser spectrum detection equipment convenient for dedusting. The laser spectrum detection equipment comprises a casing, a groove is embedded at a front sidewall of the casing,a casing door is connected in the groove in a sliding mode, a left side of the casing door passes through the left sidewall of the casing, a connecting piece is fixedly connected with a termination through a screw, an electric push rod is arranged over the left sidewall of the casing at the left side of casing door, a top of the electric push rod is fixedly connected with the connecting piece, a rubber gasket is fixedly pasted with a bottom transverse plane of the casing, a control panel is embedded at a right sidewall of the casing, a display screen and an operation button are arranged at thecontrol panel, a processor is arranged in the control panel, an air inlet-type air discharge fan and an air outlet-type exhaust fan are arranged over the control panel, a heating wire is arranged inthe air inlet-type air discharge fan, a frame is sleeved at the casing, a fixed ring is arranged at the upper end surface of the frame, and a dust collector suction nozzle is embedded in the frame. The laser spectrum detection equipment is convenient for dedusting, and saves man power.

The invention discloses a recovered construction waste regenerative water permeable brick. The recovered construction waste regenerative water permeable brick is prepared from the following raw materials in parts by weight: 1800-1900 parts of construction waste, 850-950 parts of municipal sludge, 300-350 parts of cement, 400-500 parts of biogas residue, 350-450 parts of industrial waste residue, 350-450 parts of solid waste incineration slag, and 150-200 parts of water, wherein the industrial waste residue is one or more of fly ash, slag and coal residue. Solid waste of construction, industry,life and the like substitutes the natural raw materials to be processed into the water permeable brick, mining for natural resources is reduced, and energy is saved; and city waste can be subjected to harmless and resourceful treatment simultaneously, the pressure of the waste to cities is lowered, the problem that resourceful utilization of the waste of construction, industry and life is low issolved, and the purposes of turning the waste into treasure and protecting the environment are achieved.

The invention discloses a haze-preventing shutter window which comprises a window body, a shutter, water curtain nozzles, a baffle plate, a fish tank and a flower bed, wherein a plurality of water curtain nozzles are uniformly arranged on a water ejection pipe on the upper side of the window body; water flow ejected from the water curtain nozzles is fan-shaped and is combined into pieces; the water ejection pipe is arranged between the shutter and the baffle plate. As the shutter is just connected with the fish tank, and water pumped by a water pump inside the fish tank is sprayed back to the fish tank in a dense waterfall manner, a complete water flow circulation system can be formed, air circulated through the opened window can be well washed and filtered, the purification rate of indoor air can be up to 99%, the wind blowing resistance is good, no interference can be caused by an air-conditioner, the decoration of the waterfall, flowers and aquarium fish are beneficial to the living condition and the ecology environment, the rigid demands of people on clean and sanitary air can be met, and the haze-preventing shutter window can be a completely novel upgrading window.

The invention relates to a vineyard inter-row intercropping method for catmint. The vineyard inter-row intercropping method for the catmint includes the steps that enough cleaning tillage belts of 0.7 m to 0.9 m are reserved on the two edges of vine trunks and used for conveniently farming and fertilizing, the catmint is transplanted between two rows in a cultivated-seedling-direct-seeding mode or a greenhouse-cultivated-seedling-transplantation mode, weed in a yard is removed before field planting, the depth of scarified inter-row soil is 20 cm to 25 cm, fine harrowing is repeated, 800 kg of decomposed organic fertilizer and 20 kg of calcium superphosphate are applied into soil every 667 m<2> in cooperation with ploughing and serve as base fertilizer, and ridge faces are smoothed and watered to be wet ready for use; when the height of seedlings is 8 cm to 12 cm, the seedlings are finally singled according to the row spacing of 15 cm; soil supplementing and seedling fixing are carried out while transplanting is carried out, and if plants are lacked, the seedlings can be filled in time; when the height of the catmint plants is 50 cm, cradling is carried out, cradling is carried out 2 times to 3 times in a growing season, the height is reserved 5 cm to 10 cm to keep growth points, and after cradling is carried out every time, 10 kg / 667 m<2> of calcium superphosphate are broadcasted. According to the vineyard inter-row intercropping method for the catmint, the comprehensive utilization rate of a vineyard is increased, the conditions are provided for comprehensive control of diseases and pests and production of green fruits, economic benefits are increased, and the farmer income is increased.

The invention relates to a process for producing formaldehyde-removing solid wood flooring. The process comprises the following steps of: processing a surface board, processing a core board, processing a base board, glue pressing and compounding, fine processing, coating the surface, and forming the finished product. The process has the advantages of strong natural visual sensation, comfortable foot sensation, good material quality, easy processing, cyclic utilization, good geothermy adaptability, strong stability, more simple and convenient construction and installation, excellent environmental performance, great increase of comprehensive utilization ratio of timbers and special effects on adsorbing and degrading free formaldehyde in indoor air.

The invention belongs to the technical field of cables, and particularly relates to an underground cable protection device. The device comprises a bottom plate, supporting plates are arranged on the two sides of the bottom plate, a plurality of triangular supporting frames are arranged at the top ends of the supporting plates, upper-layer supporting rods and lower-layer supporting rods are arranged in the middles of the supporting plates in the height direction, a U-shaped pipe is arranged at the top end of the bottom plate and is provided with a plurality of air outlets, and the air inlet endof the U-shaped pipe is connected with a cooling device and a dosing device. The cable protection device is simple in structure, the multiple cables are arranged in the protection device in sequence,maintenance is facilitated when the cables break down, the temperature and humidity in the protection device can be adjusted, deinsectization rodenticide can be sprayed into the protection device atregular time, the cables are prevented from being bitten by insects and mice, and when the water level in the protection device reaches a certain height, the alarm gives out alarm sound, and the cables are prevented from being wetted by water; and when no pressure exists between fixing buckles and the cables, the alarm gives out alarm sound to prevent the cables from being stolen.

The invention relates to a window mounted on a building wall and a manufacture method thereof, and belongs to the building field. A water collecting box (1), aquariums (31), flowerpots (15) and kaleidoscopes (20) are arranged in houses and noisy, messy and contaminated outer screen positions, flowers are planted, and fishes are bred. Besides, rainwater is collected, so that tap water is saved by more than 80%, and the rainwater forms a spectacular waterfall and drives the kaleidoscopes (20) to rotate to present changeable flowers. Accordingly, not only the decoration is livable and ecological and natural wonderful sceneries are created, but also green and environment-friendly positive effects of suitable lighting, radiation reduction, smoke prevention and dust control, air purifying to 98%, noise reduction and temperature and humidity adjusting are provided. Simultaneously, the window mounted on the building wall not only caters to people habits of standing in front of windows to breathe and overlook, but also meets people hobbies of fish breeding, flower planting and gardening design, and the window is a brand novel upgraded window which is necessary for home living and capable of keeping health of family members.

The invention discloses an intelligent vegetable planting greenhouse. The greenhouse comprises a greenhouse body, automatic induction detection equipment, a spraying device, a carbon dioxide generator, an adjusting system and a central controller. The greenhouse body comprises a rear wall, side walls and a roof. A reservoir, a pesticide pool and a fertilizer pool are arranged at the outer side ofthe greenhouse body; the automatic induction detection equipment comprises a temperature and humidity sensor, a soil moisture content sensor, a carbon dioxide sensor and a high-definition camera; thespraying device is arranged on the roof and is respectively communicated with the reservoir, the pesticide pool and the fertilizer pool; the carbon dioxide generator is arranged in the greenhouse body; the adjusting system is fixed on the rear wall; the input end of the central controller is connected with the output ends of the temperature and humidity sensor, the soil moisture content sensor, the carbon dioxide sensor and the high-definition camera; and the transmission end of the central controller is electrically connected with the spraying device, the carbon dioxide generator and the adjusting system.

The invention relates to a house type radiation tail end air conditioner system and control system, and relates to the technical field of independent temperature and humidity control air conditioners. The house type radiation tail end air conditioner system comprises a cold and heat source, a fresh air handling unit, a water dividing and collecting device, a radiation tail end, an air dividing device, an indoor air supply and exhaust pipeline, an indoor air supply opening, an exhaust fan, an air outlet, and an automatic control system, wherein the cold and heat source is connected in series with the water dividing and collecting pipeline through a water pipe, and is connected in series with the fresh air handling unit through a water pipe; the fresh air handling unit is connected in series with the air dividing device, the indoor air supply and exhaust pipeline and the indoor air supply opening; the fresh air handling unit is connected in parallel with the water dividing and collecting device; the water dividing and collecting device is connected in series with the radiation tail end; and the air exhaust fan is connected in series with the air outlet; the automatic control system goes through the whole system. The house type radiation tail end air conditioner system solves the problems of inconvenience in installation in a small room and difficulty in time-sharing and separate-room intelligent control, and is particularly applicable to buildings such as an apartments and a single villa.

The invention provides an outdoor ring main unit storage case comprising a bottom plate, a case body arranged on the bottom plate and a case top arranged at the top of the case body. Retractable lift rods are arranged on the front side surface and the rear side surface of the bottom plate; the heads of the retractable lift rods are semi-circular in shape; the front side of the case body is provided with a case door; the case door comprises a first door leaf, a second door leaf, and a third door leaf arranged from left to right; the right portions of the bottom and the top of the inner side of the first door leaf are provided with door bolts; the first door leaf is in hinge joint with the second door leaf through hinges; the right portion of the bottom of the inner side of the second door leaf is provided with a limiter; the right portion of the bottom of the inner side of the third door leaf is provided with a limiter; the middle portions of the bottoms of the first door leaf, the second door leaf and the third door leaf are provided with ventilation openings; arc-shaped stop pieces are arranged on the outer sides of the ventilation openings. The outdoor ring main unit storage case is reasonable in structural design, is durable, facilitates loading and unloading of transportation, is low in production cost and is safety to use.

The invention discloses an ecological protection slope which comprises a base, a soil slope, a first concrete layer, a plant protection slope concrete layer, a fixing piece and vegetation. The base comprises a rubble layer at the bottom and a vertical retaining wall on the side face, the soil slope is arranged between the rubble layer and the retaining wall to form an inclined slope, the upper portion of the soil slope is covered with the first concrete layer, the upper portion of the first concrete layer is covered with the plant protection slope concrete layer, the plant protection slope concrete layer comprises pore concrete and vegetation nutrient soil, the fixing piece fixedly connects the soil slope, the first concrete layer and the plant protection slope concrete layer, and the vegetation is planted on the plant protection slope concrete layer. By means of the ecological protection slope, a riverway soil slope or a mountain can be stable, and landslide caused by rain washing isnot likely to happen.

The invention discloses a pruning method for grape facility cultivation, and belongs to the technical field of grape planting. The pruning method comprises the following steps that grape seedlings arecultivated into planting holes; after sprouting, new shoots with strong growth vigor are selected, meanwhile, all auxiliary shoots are removed, the new shoots are bound to stand columns and horizontally bound to first meshes, and primary forming of main vines is completed; in the primary forming process of the main vines, when the new shoots grow to 1.5-1.8 m, the auxiliary shoots close to the stand columns are selected to be bound to the main vines, and other auxiliary shoots are pinched and bound to the first meshes; the new secondary shoots obtained after secondary selection are horizontally bound to the second mesh to form secondary forming of the main vines; and in winter pruning, all the auxiliary shoots are cut off, after bud eyes germinate in the second year, fruiting branches onthe two sides of the main vines bear fruits, and pruning of grape cultivation is completed. According to the pruning method for grape facility cultivation, the pruning process in the grape facility cultivation process is completed in a short time, the fruiting rate and yield of grape plants are increased, and economic benefits are improved.

The invention discloses a steel slag-doped anti-electrostatic ceramic brick which is characterized by being prepared from the following raw materials by weight: 3 to 5 parts of microlite, 6 to 8 parts of shell powder, 2 to 4 parts of germanium oxide, 30 to 50 parts of converter slag, 20 to 25 parts of talcum powder, 5 to 10 parts of kaolinite, 15 to 25 parts of micro waste glass powder, 1 to 2 parts of hydroxyethyl methyl cellulose, 2 to 4 parts of water glass powder, 2 to 4 parts of zinc oxide, 5 to 8 parts of brown sugar, 0.1 to 0.3 part of polyvinylpyrrolidone, and a proper quantity of distilled water. The ceramic brick has the advantages that static electricity can be eliminated due to the addition of oxidation germanium, so as to ensure people's body health; due to the addition of microlite, the weathering resistance, the weatherability and the contamination preventing capability of the ceramic brick can be enhanced; due to the addition of shell powder, the humiture of air can be adjusted effectively, and the ceramic brick is low in moisture regain and water seepage possibilities. The ceramic brick provided by the invention is wide in application range, beneficial to people's health, low in cost, high in decorative effect, and worth popularization.

The invention discloses a high-strength water-permeable brick for an urban channel revetment. The high-strength water-permeable brick for the urban channel revetment comprises the following raw materials in parts by weight: 110 to 120 parts of aggregate, 35 to 45 parts of silicate cement, 20 to 40 parts of diatomite, 15 to 30 parts of water, 12 to 18 parts of forming stabilizer, 20 to 40 parts ofriver sand, 1 to 2 parts of water-reducing agent and 1 to 2 parts of dispersing agent. The high-strength water-permeable brick for the urban channel revetment has high compressive strength, is not liable to deformation, can effectively reduce urban garbage and save the use amount of natural aggregate, is low in cost, high in strength, dense in surface, energy-saving and environment-friendly, has high water-permeable and air-permeable properties, enables rainwater to be permeated into underground rapidly and improves the life quality of people in the city.

The invention relates to a planting product production and processing method. The planting product production and processing method is used for producing and processing carriers such as patches, bricks, plates, profiles, uprights, arches, guardrails, containers, scripts and paintings for fixing and supporting plants by gelatinizing materials, auxiliary materials and additives, inoculating and (or) planting plants on the carriers and obtaining planting products after culturing. The planting products produced by the method have no effect on purposes of the planting products before plants grow out, the plants only beautify the planting products and utilizes the planting products as carriers for planting the plants, so that the planting products are economic and attractive in appearance, the method is simple and practical, and on-site manual manufacture as well as industrialized batch production is realized. If the planting products are popularized and used in large area, buildings can be more energy saving, attractive and fashionable, and decoration and greening are more diversified. Meanwhile, city dust can be effectively reduced, temperature and humidity can be adjusted, the environment of the city is improved, energy conservation and emission reduction are promoted, and great significance for protecting the environment and beautifying the life is achieved.

The invention discloses a planting method of prune seedlings. The planting method comprises the following steps: step 1, selecting planting time; 2, shaping the planting soil; step 3, digging holes; step 4, soil treatment: (1) filling the plant pits with nutrient soil with the thickness of about 20cm; (2) pulling a moisture test card from the plant pit, and monitoring the soil moisture content in the plant pit in real time; (3) pulling a pH test card from the interior of the plant pit, and monitoring the pH value of soil in the plant pit in real time; 5, prune nursery stock planting; step 6, irrigation and drainage; 7, prune nursery stock maintenance. A pH test card is pulled from a plant pit, the pH value of soil in the plant pit is monitored in real time, the survival rate of nursery stocks can be obviously increased, the growth condition of plants can be enhanced, and by improving the physical and chemical properties of the soil, increasing the organic matter content of the soil and adjusting the temperature and humidity of the soil, the yield of the plants is improved. The survival rate of seedlings is effectively improved; and the growth condition of plants is enhanced.

The invention discloses building mortar and a preparation method and construction application thereof. The building mortar is prepared from, by weight, 8-15 parts of bauhinia seeds, 1-5 parts of uncaria rhynchophylla, 22-28 parts of quartz sand, 6-10 parts of talcum powder, 65-73 parts of calcium sulfate and 2-5 parts of lignosulfonate. According to the preparation method, the bauhinia seeds and the uncaria rhynchophylla are dried by distillation with absolute ethyl alcohol and acetic acid in sequence; then, freeze drying, grinding and superfine grinding are conducted, and the pretreated bauhinia seeds and uncaria rhynchophylla are obtained; the quartz sand is dried, crushed and sieved; the pretreated bauhinia seeds and uncaria rhynchophylla, the talcum powder and the lignosulfonate are added to the calcium sulfate, the mixture is stirred to be uniform, then the mixture is stirred with the sieved quartz sand to be uniform, and the building mortar is obtained. The building mortar has the functions of automatically adjusting indoor temperature and humidity, resisting to bacteria, purifying air and the like, can generate a great number of anions, is wide in application and used for decoration of offices and household indoor walls and can also be processed into ceiling decorative plates, wall decorative plates and the like.

The invention provides a refrigerator and a control method thereof. The refrigerator is internally provided with an air duct assembly and a closed storage container movably arranged relative to the air duct assembly. The control method includes the steps that the condensation amount of the closed storage container is obtained; and the closed storage container is controlled to move relative to theair duct assembly according to the condensation amount. By adjusting the distance between the closed storage container and the air duct assembly, the temperature of the closed storage container can beadjusted, so that the refrigerator can automatically relieve the condensation problem, prevent the condensation problem from deteriorating, and improve the intelligent degree.

The embodiment of the invention discloses a gas inlet mechanism and a negative pressure system. The gas inlet mechanism comprises a first gas inlet end, a first gas outlet end and a first passage positioned between the first gas inlet end and the first gas outlet end; the first passage contains a first gas driving unit; a first filter assembly is arranged between the first gas inlet end and the first gas driving unit; a second filter assembly is arranged between the first gas outlet end and the first gas driving unit; and the gas inlet mechanism further comprises an adjusting assembly used foradjusting gas temperature and humidity in the first passage. The gas inlet mechanism is provided with the adjusting assembly which is used for adjusting gas temperature and humidity in the first passage, the situation that the temperature and humidity of gas going through the gas inlet mechanism are adjustable is guaranteed, and thereby the temperature and humidity of the gas inside the negativepressure system can be adjusted, so the comfortableness of users inside the negative pressure system is improved.

The invention discloses a heat recovery type evaporative cooling air conditioning system suitable for large and small environments of a hotel. The heat recovery type evaporative cooling air conditioning system comprises a compound hotel cooling air conditioning unit which is connected with a hall, a storage room and all rooms in the hotel through an air pipe network. By means of the heat recovery type evaporative cooling air conditioning system suitable for the large and small environments of the hotel, the problems that an existing hotel air conditioning system is unreasonable in blast distribution and secondary air energy is lost are solved.

The invention discloses a summer oyster mushroom sun shielding shed with a sun shielding net. The summer oyster mushroom sun shielding shed comprises a greenhouse support frame, a top film, two skirtfilms and a sun shielding net assembly, wherein the top film is arranged on the top position of the greenhouse support frame; the two skirt films are respectively arranged at the two side surfaces ofthe greenhouse support frame; the top film and the skirt films use waterproof ventilation films; the sun shielding net assembly is arranged on the top of the greenhouse support frame and is positionedabove the top film. The structure is used; the oyster mushroom yield can be increased; the oyster mushroom growth can be promoted; the material is saved; the structure weight is reduced.

The present invention relates to an environment-protecting energy-saving mobile public toilet. It is characterized by that its structure is simple, volume is small, weight is light, it can be integrally moved, and does not use water to flush, can save energy source and can protect ecological environment.