CN112814145A - Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors - Google Patents
Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors Download PDFInfo
- Publication number
- CN112814145A CN112814145A CN202110179175.3A CN202110179175A CN112814145A CN 112814145 A CN112814145 A CN 112814145A CN 202110179175 A CN202110179175 A CN 202110179175A CN 112814145 A CN112814145 A CN 112814145A
- Authority
- CN
- China
- Prior art keywords
- air
- room
- indoor
- heat
- low thermal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000009413 insulation Methods 0.000 claims description 35
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 15
- 239000012774 insulation material Substances 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 9
- 229910052602 gypsum Inorganic materials 0.000 claims description 8
- 239000010440 gypsum Substances 0.000 claims description 8
- 239000007799 cork Substances 0.000 claims description 7
- 239000004964 aerogel Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 239000012784 inorganic fiber Substances 0.000 claims description 6
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 206010011409 Cross infection Diseases 0.000 abstract description 11
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 11
- 238000010438 heat treatment Methods 0.000 description 21
- 239000012530 fluid Substances 0.000 description 13
- 238000006073 displacement reaction Methods 0.000 description 12
- 238000004321 preservation Methods 0.000 description 11
- 230000005855 radiation Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005399 mechanical ventilation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000011229 Prunus domestica subsp. syriaca Nutrition 0.000 description 1
- 240000005462 Prunus umbellata var. umbellata Species 0.000 description 1
- 235000005138 Spondias dulcis Nutrition 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Structural Engineering (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a replacement ventilation type building and an indoor surface material decorative plate for preventing foul air from being self-locked indoors, wherein the replacement ventilation type building comprises a room body, an air supply system for inputting fresh air into the room body and an air exhaust system for exhausting the foul air in the room body, the upper surface of the indoor space of the room body is a low heat conduction surface or the upper sections of the upper surface and the side surface of the indoor space of the room body are low heat conduction surfaces, and the heat conduction coefficient of the low heat conduction surface is less than or equal to 0.1W/(mK). The indoor surface material has a low heat conductive surface for facing the indoor space, the low heat conductive surface having a thermal conductivity of less than or equal to 0.1W/(mK). The invention prevents the hot foul air from being cooled rapidly and sinking, so that the hot foul air stays near the upper layer of the indoor space until being discharged out of the room, thereby realizing real replacement ventilation and avoiding indoor cross infection.
Description
Technical Field
The invention belongs to the technical field of house construction, and particularly relates to a replacement ventilation type building and an indoor surface material capable of preventing foul air from being self-locked indoors.
Background
The principle of displacement ventilation is based on the rise of hot air and the fall of cold air due to air density differences. The air is blown from the bottom of the room at a wind speed less than 0.2m/s, which is lower than the indoor air temperature. Displacement ventilation systems have been used in europe for over 40 years in high thermal load industrial buildings, and in 1978 a foundry in berlin, germany, first used displacement ventilation. Replacement ventilation systems have also become increasingly popular in non-industrial buildings in northern european countries, such as office buildings, schools, theaters, etc., e.g., the copenhagen theater, denmark. In China, the university of Qinghua researches the operation conditions of ventilation and mixed ventilation (dilution ventilation) in the cooling season to obtain that the ventilation is more energy-saving; meanwhile, the particle distribution of the replacement ventilation under different air flows is researched, and the result shows that the air flow has great influence on the particle distribution of different particle sizes, the concentration of small-particle-size particles (PM2.5) in the upper area of a room is higher, and the concentration of large-particle-size particles (PM10) in the lower area of the room is higher. The university of Tongji establishes an airflow laboratory to perform experimental analysis research on the characteristics of the displacement ventilation airflow, and briefly analyzes the influence of the enclosure structure on the airflow organization by changing the heat transfer coefficient of the enclosure structure, thereby providing reference data for evaluating the comfort of the displacement ventilation mode; meanwhile, the analysis and research of the composite system of the displacement ventilation and the cooling top plate are also carried out. The donghua university has been involved many times in experimental studies in the LET laboratory in france on disturbing factors of the displacement ventilation system, such as the effect of water vapour on the performance of the displacement ventilation system. The scholars of Huazhong university of science and technology use the CFD technology to study the parameter design of the replacement ventilation system, and provide a method for determining various parameters of the replacement ventilation system, so that the designed system can ensure indoor higher air quality, and can prevent the phenomena of overlarge vertical temperature difference, blowing feeling and the like. With the application of computational fluid dynamics in heating ventilation, a large number of numerical simulation researches on displacement ventilation flow fields, temperature fields, concentration fields and moisture content distribution are correspondingly developed, and a lot of important results are obtained. Referring to fig. 1, the indoor smoke distribution diagram during ventilation is replaced. The fresh air for replacing ventilation replaces the air of the whole house, and the original air in the house is discharged, namely, the heat plume of the indoor human body heat source is utilized to form an approximate plug flow to replace the indoor air.
In the prior art, the surface material of an indoor ceiling is generally high in heat conductivity coefficient, an aluminum alloy panel is 230W/(m.K), a concrete floor is 1.5W/(m.K), a gypsum board is 0.3W/(m.K), heat preservation gypsum is 0.07W/(m.K), cork is 0.05W/(m.K), and hot foul air sinks when the ceiling is cooled, so that the hot foul air cannot be discharged quickly, and cross contamination is caused.
Disclosure of Invention
The invention aims to provide a replacement ventilation type building and an indoor surface material which can prevent foul air from being self-locked indoors. Avoid the foul gas self-locking in the indoor space.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an avoid foul smell auto-lock in indoor replacement ventilation formula building, including the room body, to the internal portion of room inputs fresh air's air supply system and will the internal portion of room contains foul smell's air exhaust's exhaust system, a serial communication port, the interior space upper surface of the room body is low heat conduction surface or the interior space upper surface and the side surface upper segment of the room body are low heat conduction surface, the coefficient of heat conductivity on low heat conduction surface is less than or equal to 0.1W/(mK).
Further, the low thermal conductive surface is the surface of a low thermal conductive material plate or the surface of a low thermal conductive material coating coated on the inner wall of the building.
Further, the low heat conduction material plate body is cork board or heat preservation gypsum board or glass fiber board, the low heat conduction material coating is polyphenyl granule heat preservation mortar or aerogel insulation material or inorganic fiber spraying insulation material.
Furthermore, the house body is a sealed heat-preservation house body.
The invention also provides another technical scheme: an indoor surface material for preventing self-locking of foul air in a room, the indoor surface material having a low heat conductive surface for facing an indoor space, the low heat conductive surface having a heat conductivity of less than or equal to 0.1W/(mK).
Further, the low thermal conductive surface is a surface of a plate body made of a low thermal conductive material or a surface of a coating made of a low thermal conductive material coated on the plate body.
Further, the low heat conduction material plate body is cork board or heat preservation gypsum board or glass fiber board, the low heat conduction material coating is polyphenyl granule heat preservation mortar or aerogel insulation material or inorganic fiber spraying insulation material.
Further, the indoor surface material is a ceiling or a wall panel.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention discloses a replacement ventilation type building and an indoor surface material for preventing foul air from being self-locked indoors, wherein a low-heat-conduction surface prevents hot foul air from being rapidly cooled and sinking, so that the hot foul air stays near the upper layer of an indoor space until being discharged outdoors, and therefore, real replacement ventilation is realized, and indoor cross infection is avoided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of indoor smoke distribution during ventilation displacement in the prior art;
FIG. 2 is a block diagram of the components of a building according to one embodiment of the present invention;
FIG. 3 is a schematic view of the airflow of a building according to one embodiment of the present invention;
FIG. 4 is a schematic view of the airflow of a building according to a second embodiment of the present invention;
FIG. 5 is a schematic view of the material of the inner surface of the chamber in the third embodiment of the present invention.
Wherein, 10, the house body; 11. a ground surface; 12. a ground heat-insulating layer; 13. a wall body; 14. a wall heat-insulating layer; 15. a roof; 16. a roof insulation layer; 17. a low thermal conductivity surface; 20. an air supply system; 21. a fresh air delivery end; 22. an air supply fan; 30. an exhaust system; 31. a foul gas receiving end; 32. an exhaust fan; 40. a ventilation heat recovery system; 41. an air supply conveying device; 42. an exhaust air conveying device; 50. an environmental source heat exchange system; 51. a fluid delivery device; 52. enclosing an internal circulation fluid; 61. an indoor refrigerating and heating device; 62. a fresh air refrigerating and heating device; 70. a plate body made of a low heat-conducting material; 71. a low thermal conductivity surface.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure. In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.
The following is a preferred embodiment of the present invention, but is not intended to limit the scope of the present invention.
Example one
Referring to fig. 2 to 3, as shown in the drawings, a building for preventing the self-locking of the foul air in the room includes a room body 10, an air supply system 20 for supplying fresh air into the room body 10, and an air exhaust system 30 for exhausting the foul air from the room body 10, wherein the upper surface of the indoor space of the room body 10 is a low thermal conductivity surface 17, and the thermal conductivity of the low thermal conductivity surface 17 is less than or equal to 0.1W/(mK). In other embodiments it may also be: the upper surface of the indoor space and the upper section of the side surface of the room body are both low heat conduction surfaces.
In an embodiment of the present invention, the low thermal conductive surface 17 is a surface of a low thermal conductive coating coated on an inner wall of a building, and the low thermal conductive coating is a polyphenyl granule thermal insulation mortar, an aerogel thermal insulation material, or an inorganic fiber spray thermal insulation material. In other embodiments it may also be: the low heat conduction surface is the surface of a board body (ceiling or wall board) made of low heat conduction materials, the board body made of low heat conduction materials is a cork board or a heat preservation gypsum board or a glass fiber board, or the low heat conduction surface is a coating made of low heat conduction materials coated on the board body (ceiling or wall board).
In the preferred embodiment of this embodiment, the house 10 is a sealed insulation house, the sealed insulation house includes a bottom, a wall and a top, the bottom of the sealed insulation house includes a floor 11 and a floor insulation layer 12 disposed outside the floor 11, the wall of the sealed insulation house includes a wall 13 and a wall insulation layer 14 disposed outside the wall 13, and the top of the sealed insulation house includes a roof 15 and a roof insulation layer 16 disposed outside the roof 15.
In the preferred embodiment of this embodiment, the building is a displacement ventilation type low energy consumption building, and the displacement ventilation type low energy consumption building further includes a ventilation heat recovery system 40, an environmental source heat exchange system 50, and a cooling and heating system.
The ventilation heat recovery system 40 comprises an air supply conveying device 41 communicated with the inlet of the fresh air sending end of the air supply system 20 and an air exhaust conveying device 42 communicated with the outlet of the turbid air receiving end of the air exhaust system 30, and the air supply conveying device 41 and the air exhaust conveying device 42 exchange heat; the air blowing and conveying device 41 and the air discharging and conveying device 42 are ducts.
The environment source heat exchange system comprises a fluid conveying device 51 which exchanges heat with the natural environment, the inlet of the fluid conveying device 51 is communicated with a closed internal circulation fluid 52, the fluid output by the fluid conveying device 51 exchanges heat with the air in the sealed heat-insulation house body 10 and/or the fluid output by the fluid conveying device 51 exchanges heat with the air sent into the sealed heat-insulation house body 10, and the fluid conveying device 51 is a ground source heat pump, a water source heat pump or an air source heat pump.
The refrigerating and heating system comprises an indoor refrigerating and heating device 61 for refrigerating or heating the air in the sealed heat-insulating room body 10 to a set temperature and a fresh air refrigerating and heating device 62 for refrigerating or heating the fresh air sent by the air supply system 20 to a temperature lower than the set temperature.
In a preferred embodiment of this embodiment, the indoor cooling and heating device 61 is a cooling and heating radiation floor, and the fluid output by the fluid delivery device 51 enters a coil of the cooling and heating radiation floor. In other embodiments it may also be: the indoor refrigerating and heating device comprises a radiant heating floor and a radiant refrigerating floor which are respectively arranged, or the indoor refrigerating and heating device is a cold and heat radiation ceiling, or the indoor refrigerating and heating device comprises a radiant heating ceiling and a radiant refrigerating ceiling which are respectively arranged.
In the preferred embodiment of the present embodiment, the air supply system 20 further includes an air supply fan 22 for supplying positive pressure air into the sealed insulated room 10, and the air exhaust system 30 further includes an air exhaust fan 32 for exhausting negative pressure air out of the sealed insulated room 10. In other embodiments it may also be: the air supply fan is not arranged, and only the air exhaust fan is arranged.
In a preferred embodiment of this embodiment, the air supply system further includes an air filter (not shown in the figure) for filtering suspended particles in the fresh air supplied by the air supply system, a disinfection device (not shown in the figure) for disinfecting and sterilizing the fresh air supplied by the air supply system, and a dehumidification device (not shown in the figure) for removing moisture in the fresh air supplied by the air supply system.
In the preferred embodiment of the embodiment, a plurality of people gathering zones are distributed in the sealed heat-insulation house body 10, the position of the fresh air sending-out end 21 is lower than the position of the mouth and nose of the people gathering zone, and the position of the foul air receiving end 31 is higher than the position of the mouth and nose of the people gathering zone; one or more fresh air sending-out ends 21 are arranged below one side of each person gathering area, one or more fresh air sending-out ends 21 are arranged between two adjacent person gathering areas, one or more foul air receiving ends 31 are arranged above or right above the other side of each person gathering area, the sealed heat preservation room body 10 is divided into a first vertical cylindrical space and a second vertical cylindrical space which are sequentially and alternately arranged along the horizontal direction, the person gathering areas are arranged in the first vertical cylindrical space, the fresh air sending-out ends are arranged in the second vertical cylindrical space, and the foul air receiving ends are arranged in the first vertical cylindrical space or the second vertical cylindrical space. In other embodiments it may also be: a person gathering zone is distributed in the sealed heat-insulation house body, the fresh air sending end is arranged on the ground or the corner or the lower end of the wall of the sealed heat-insulation house body, and the foul air receiving end is arranged on the top wall or the upper end of the wall of the sealed heat-insulation house body.
In a preferred embodiment of this embodiment, the set temperature is an indoor temperature, the set temperature is 20 ℃ to 26 ℃, and the temperature of the fresh air sent by the fresh air sending end 21 is lower than the set temperature by no more than 3 ℃. In other embodiments it may also be: the temperature is set to other temperatures as long as the temperature is appropriate.
In the preferred embodiment of the present embodiment, the fresh air outlet end 21 is a fiber cloth duct. In other embodiments it may also be: the fresh air outlet end adopts a diffuser and the like.
In the preferred embodiment of this embodiment, the upper surface of the indoor space of the sealed thermal insulation house 10 is the low thermal conductivity surface 17, and the thermal conductivity of the low thermal conductivity surface 17 is less than or equal to 0.1W/(mK). In other embodiments it may also be: the upper surface of the indoor space and the upper section of the side surface of the sealed heat-insulation house body are both low heat-conducting surfaces.
In the preferred embodiment of this embodiment, a plurality of people gathering belts are distributed in the sealed insulation room body 10, the fresh air outlet end 21 is arranged at the bottom of the sealed insulation room body 10, and the foul air receiving end 31 is arranged at the top of the sealed insulation room body 10. In other embodiments it may also be: when a person gathering zone is distributed in the sealed heat-insulation house body, the fresh air sending end is arranged on the ground or the corner or the lower end of the wall of the sealed heat-insulation house body, and the foul air receiving end is arranged on the top wall or the upper end of the wall of the sealed heat-insulation house body.
In a preferred embodiment of this embodiment, the low energy consumption building is a passive building or one of an ultra-low energy consumption building, a near-zero energy consumption building, a zero carbon building, a carbon-neutral building, and an energy production building based on the passive building.
In the preferred embodiment of this embodiment, the air fed into the sealed thermal insulation house 10 is first distributed uniformly at the lower part, then flows upwards, meets the heat source, is heated, flows upwards slowly, and is pumped out of the sealed thermal insulation house 10 at the upper part. In the office/room with large volume, in order to avoid the diffusion of hot dirty gas in the room, the bottom between the personnel gathering zones is selected to arrange a fresh air sending end, the fresh air sending end uniformly sends out cold air with the speed less than 0.2m/s, the fresh air is diffused to two sides, the hot dirty gas on one side is not diffused to the other side, the heat radiation is carried out through the floor, and the heat provided by an indoor human body heat source is provided, the temperature of the cold air is slowly raised, and the cold air and the indoor generated hot dirty gas reach the top area of the ceiling together and then follow the heat. The air is exhausted outdoors from the ceiling top areas among different human bodies, almost no pollution gas exists in a working area, indoor cross infection is avoided, and indoor environment health is improved. Meanwhile, the utilization rate of fresh air can be improved, the fresh air demand can be reduced, and therefore energy consumption can be reduced. The method can adopt replacement ventilation (namely the weather of condensation in the room in the natural state in the south China, also called yellow plum day or return south day) in winter, summer and plum rain in the room, so that fresh air is fed into the room and hot and dirty air in the room cannot be mixed to form laminar flow, the hot and dirty air in the room rises to a ceiling area and is discharged out of the room, and indoor cross infection is avoided. In the cooling period in summer, fresh air is fed at a low speed from the indoor bottom after being refrigerated (the temperature of the fresh air is lower than the room temperature by within 3 ℃), and the fresh air is slowly dispersed at the indoor bottom and is heated and slowly ascends when meeting an indoor human body heat source. In the winter heating period, outdoor fresh air is only filtered and is directly and slowly fed into a heat exchanger (the temperature of the fresh air is lower than the room temperature by within 3 ℃) at the indoor bottom at low wind speed, a cold air lake is formed near the bottom, and the cold air is uniformly heated and slowly rises by adding heat radiation of a floor to form laminar flow. The hot foul smell exhaled by the person rises along with the rising of the hot foul smell, and is exhausted out of the room from the upper part of the room. The purpose of adding the heat preservation coating on the ceiling surface is that after the hot foul gas contacts the ceiling, the hot foul gas can not be cooled rapidly and then sinks to be mixed with other air, the detention time of the hot foul gas in the room is reduced, and the indoor cross infection is avoided. By using the replacement ventilation, the foul air is not diffused transversely in the bottom area of the room and is directly brought to the non-personnel staying area at the upper part of the room by the ascending air flow, so that a comfortable and healthy environment is created for the working area. For the season with moderate outdoor temperature in spring and autumn, the window opening natural ventilation is recommended, and the method is the best method for avoiding indoor cross infection.
Example two
Referring to fig. 4, as shown in the figure, the rest of the embodiments are the same as the first embodiment, except that a people gathering belt is distributed in the sealed insulation room, the fresh air sending end is arranged on the ground or the corner or the lower end of the wall of the sealed insulation room, and the foul air receiving end is arranged on the top wall or the upper end of the wall of the sealed insulation room.
In the embodiment, in an office/room with small volume, cold air with the speed less than 0.2m/s is sent downwards from the bottom of one side in the room, and is heated and ascended slowly through the heat radiation of the bottom and the heat provided by the indoor human body heat source, and the cold air and the heat dirt generated in the room reach the top area of the ceiling together, and then are discharged out of the room above the other side. Almost no pollution gas exists in a working area, indoor cross infection is avoided, indoor environment health is improved, the requirement of fresh air volume can be effectively reduced, and energy consumption is reduced.
The buildings in the first and second embodiments realize indoor airflow control and timely discharge of foul air by regulating and controlling various factors affecting indoor air temperature, wind direction, wind speed and the like, namely regulating and controlling factors affecting airflow, particularly foul air paths, so as to avoid cross infection. The specific technical measures are as follows:
1. the influence and the interference of the external environment on the indoor environment are eliminated, and a high-airtightness high-heat-preservation and mechanical ventilation (fresh air) system which meets the technical requirements of buildings is adopted. Common buildings are susceptible to external environments:
firstly, air leakage can be generated in buildings with poor air tightness, so that indoor air is mixed;
the external door and window with good heat preservation and insulation effects is not used, the surface temperature of the door and window is low, so that nearby air flows downwards, and indoor air easily flows circularly;
thirdly, when no mechanical ventilation exists, the window opening can influence the airflow and the temperature;
and fourthly, the influence of the whole temperature difference of the room on the airflow.
2. The method avoids the problem that the temperature of the adjacent foul air is reduced to cause the foul air to sink due to the heat dissipation of the ceiling surface and the upper wall surface, avoids the foul air from being self-locked in the middle layer and being incapable of being discharged, and adopts low-heat-conductivity surface materials or coatings.
3. The lower part of the air conditioner slowly sends cold air (fresh air slightly lower than room temperature) passing through the heat exchanger at the air speed not more than 0.2m/s, and the ground radiation heating is used for replacing the hot air supply in winter, so as to avoid turbulence and form an indoor 'cold air lake'. In summer, the ground radiation refrigeration is used for ensuring comfortable room temperature, and the fresh air refrigeration is used for providing fresh air slightly lower than the room temperature, so that the turbulence is avoided, and a cold lake is formed.
4. The natural law of cold air sinking and hot air rising is followed, and the lower cold air (fresh air) supply and the upper exhaust are adopted.
Firstly, only fresh air is refrigerated under the working condition that cross infection needs to be avoided, and circulating air is not used;
secondly, under the working condition that cross infection needs to be avoided, the temperature is kept slightly lower than the room temperature and acceptable all the year round, and the temperature difference does not exceed 3 ℃.
5. In winter, the floor is heated in a large area at low temperature, so that the indoor airflow is prevented from being interfered by a concentrated heat source (such as a radiator) or unbalanced heating (such as heating on one side of a wall). Meanwhile, the overlarge indoor vertical temperature gradient can be avoided;
6. the method implements gridding distributed control on the airflow in the open large space, follows the airflow path of 'fresh air-human body-foul air-discharge', and avoids the airflow trend of 'human body-foul air-human body':
the air return inlet (air outlet) is as close to the foul air source as possible, and the short circuit between the air supply end and the air exhaust end is avoided though the air return inlet (air outlet) is exhausted through the shortest path.
Secondly, a return air inlet is established right above the intensive people flow, the airflow direction is as vertical and upward as possible (the return air and the fresh air form a vertical direction to form vertical airflow control), and in a word, the principle is as follows: avoid the transmission of turbid qi, and discharge the turbid qi as soon as possible according to the principle II.
EXAMPLE III
Referring to fig. 5, as shown in the drawing, an indoor surface material for preventing the self-locking of the foul air in a room has a low heat conductive surface 71 for facing the indoor space, and the low heat conductive surface 71 has a heat conductivity of 0.1W/(mK) or less.
In a preferred embodiment of the present embodiment, the low thermal conductive surface 71 is a surface of a low thermal conductive material plate 70, and the low thermal conductive material plate 70 is a cork plate, a heat-insulating gypsum plate, or a glass fiber plate. In other embodiments it may also be: the low heat conduction surface is the surface of the low heat conduction material coating coated on the plate body, and the low heat conduction material coating is polyphenyl granule heat insulation mortar or aerogel heat insulation material or inorganic fiber spraying heat insulation material.
In a preferred embodiment of this embodiment, the interior surface material is a ceiling. The ceiling with low heat conduction is arranged at the top of the indoor space. In other embodiments it may also be: the indoor surface material is a wall panel. The wall panel with low heat conduction is integrally arranged on the side wall of the indoor space, or the wall panel with low heat conduction is arranged on the upper section of the side wall of the indoor space.
Set up indoor surface material through roof or lateral wall upper segment at replacement ventilation formula building, behind hot foul gas contact indoor surface material, can not cool off rapidly and sink again and mix with other air, reduce the residence time of hot foul gas in indoor, avoid indoor cross infection.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including any reference to the above-mentioned embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides an avoid foul smell auto-lock in indoor replacement ventilation formula building, including the room body, to the internal portion of room inputs fresh air's air supply system and will the internal portion of room contains foul smell's air exhaust's exhaust system, a serial communication port, the interior space upper surface of the room body is low heat conduction surface or the interior space upper surface and the side surface upper segment of the room body are low heat conduction surface, the coefficient of heat conductivity on low heat conduction surface is less than or equal to 0.1W/(mK).
2. The replacement ventilation building of claim 1, wherein the low thermal conductivity surface is a surface of a plate of low thermal conductivity material or a surface of a coating of low thermal conductivity material applied to the plate or a surface of a coating of low thermal conductivity material applied to an inner wall of the building.
3. The replacement ventilation building capable of preventing self-locking of foul air in a room as claimed in claim 2, wherein the plate body made of low thermal conductivity material is a cork plate, a heat insulation gypsum plate or a glass fiber plate, and the coating made of low thermal conductivity material is polyphenyl granule heat insulation mortar, aerogel heat insulation material or inorganic fiber spraying heat insulation material.
4. The ventilated room-replacement building of claim 1 in which the enclosure is a sealed insulated enclosure.
5. An indoor surface material for preventing self-locking of foul air in a room, the indoor surface material having a low heat conductive surface for facing an indoor space, the low heat conductive surface having a heat conductivity of 0.1W/(mK) or less.
6. The indoor surface material for preventing the self-locking of the foul air in the room according to claim 5, wherein the low thermal conductive surface is a surface of a plate body made of a low thermal conductive material or a surface of a coating made of a low thermal conductive material coated on the plate body.
7. The indoor surface material for preventing the self-locking of the foul air in the room as claimed in claim 6, wherein the plate body made of the low thermal conductivity material is a cork plate, a heat insulation gypsum plate or a glass fiber plate, and the coating made of the low thermal conductivity material is a polyphenyl granule heat insulation mortar, an aerogel heat insulation material or an inorganic fiber spraying heat insulation material.
8. The interior surface material for preventing the self-locking of foul air in a room as claimed in claim 5, wherein said interior surface material is a ceiling or wall panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110179175.3A CN112814145A (en) | 2021-02-08 | 2021-02-08 | Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors |
| PCT/CN2021/098795 WO2022166055A1 (en) | 2021-02-08 | 2021-06-08 | Displacement ventilation type building and indoor surface material for avoiding self-locking of stale air indoors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110179175.3A CN112814145A (en) | 2021-02-08 | 2021-02-08 | Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112814145A true CN112814145A (en) | 2021-05-18 |
Family
ID=75864857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110179175.3A Pending CN112814145A (en) | 2021-02-08 | 2021-02-08 | Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112814145A (en) |
| WO (1) | WO2022166055A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166055A1 (en) * | 2021-02-08 | 2022-08-11 | 苏州大学 | Displacement ventilation type building and indoor surface material for avoiding self-locking of stale air indoors |
| WO2022166054A1 (en) * | 2021-02-08 | 2022-08-11 | 苏州大学 | Displacement ventilation-type passive house |
| WO2022166053A1 (en) * | 2021-02-08 | 2022-08-11 | 苏州大学 | Displacement ventilation type building having soft air supply function |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19826625A1 (en) * | 1998-06-17 | 1999-12-23 | Lieselotte Glas | Low-energy building using solar energy |
| CN102434013B (en) * | 2011-08-31 | 2014-06-11 | 上海伯涵热能科技有限公司 | Low-heat inertia integrated shower room using high-enthalpy bathroom heater as heating and humidifying device |
| CN202430927U (en) * | 2012-01-16 | 2012-09-12 | 上海英硕聚合材料股份有限公司 | Heat preservation, thermal insulation and decoration integrated plate |
| CN203583691U (en) * | 2013-11-07 | 2014-05-07 | 北京建筑材料科学研究总院有限公司 | Insulation board for exterior walls of buildings |
| CN209310196U (en) * | 2018-12-25 | 2019-08-27 | 苏州恩基热能科技有限公司 | Heat pump mill construction |
| CN112781147A (en) * | 2021-02-08 | 2021-05-11 | 苏州大学 | Replacement ventilation type passive house |
| CN112814145A (en) * | 2021-02-08 | 2021-05-18 | 苏州大学 | Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors |
| CN112781150A (en) * | 2021-02-08 | 2021-05-11 | 苏州大学 | Radiation type refrigerating and heating passive house |
| CN112814420A (en) * | 2021-02-08 | 2021-05-18 | 苏州大学 | Building capable of avoiding cross infection through indoor foul air management and control |
-
2021
- 2021-02-08 CN CN202110179175.3A patent/CN112814145A/en active Pending
- 2021-06-08 WO PCT/CN2021/098795 patent/WO2022166055A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166055A1 (en) * | 2021-02-08 | 2022-08-11 | 苏州大学 | Displacement ventilation type building and indoor surface material for avoiding self-locking of stale air indoors |
| WO2022166054A1 (en) * | 2021-02-08 | 2022-08-11 | 苏州大学 | Displacement ventilation-type passive house |
| WO2022166053A1 (en) * | 2021-02-08 | 2022-08-11 | 苏州大学 | Displacement ventilation type building having soft air supply function |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022166055A1 (en) | 2022-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112762546A (en) | Replacement ventilation type building with gridding air supply | |
| CN112814145A (en) | Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors | |
| US9677777B2 (en) | HVAC system and zone control unit | |
| CN112814420A (en) | Building capable of avoiding cross infection through indoor foul air management and control | |
| CN112781146A (en) | Replacement ventilation type building capable of soft air supply | |
| US20160153671A9 (en) | Hvac system and zone control unit | |
| CN214307443U (en) | Radiation type refrigerating and heating passive house | |
| CN207751074U (en) | Ring Window frame-type indoor air conditioner | |
| CN112781150A (en) | Radiation type refrigerating and heating passive house | |
| CN112781147A (en) | Replacement ventilation type passive house | |
| CN214307435U (en) | Replacement ventilation type building capable of soft air supply | |
| CN102425820A (en) | Split-type air conditioner capable of realizing nighttime ventilation | |
| CN111678205A (en) | Outer new trend and two unification's of inner loop fan coil unit device and whole room new trend replacement system | |
| CN214497845U (en) | Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors | |
| CN214891647U (en) | Replacement ventilation type passive house | |
| CN214841380U (en) | Replacement ventilation type building with gridding air supply | |
| CN214498505U (en) | Building capable of avoiding cross infection through indoor foul air management and control | |
| CN204629868U (en) | Radiation refrigeration/heat and fresh air refrigerating/hot merit energy integrated heat exchange device | |
| CN206449788U (en) | Combined type air conditioner and recuperation of heat air cleaning system | |
| WO2010061205A1 (en) | Environmental climate control for commercial buildings | |
| CN206695346U (en) | A kind of VAV systems outskirt floor air-supply arrangement | |
| CN213577840U (en) | Adopt and send flat new trend system building of arranging perpendicularly | |
| CN212339524U (en) | Adopt and erect to send and arrange new trend system building | |
| CN204962989U (en) | Vertical air treatment machine | |
| JP2005049024A (en) | Air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |