CN112814145B - Displacement ventilation buildings and indoor surface materials that prevent foul air from being locked indoors - Google Patents
Displacement ventilation buildings and indoor surface materials that prevent foul air from being locked indoors Download PDFInfo
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- CN112814145B CN112814145B CN202110179175.3A CN202110179175A CN112814145B CN 112814145 B CN112814145 B CN 112814145B CN 202110179175 A CN202110179175 A CN 202110179175A CN 112814145 B CN112814145 B CN 112814145B
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- 239000004964 aerogel Substances 0.000 claims description 6
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Classifications
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- 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
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- 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
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- 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
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- 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
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Abstract
本发明公开了一种避免浊气自锁于室内的置换通风式建筑物及室内表面材料装饰板，置换通风式建筑物包括房体、向房体内部输入新鲜空气的送风系统以及将房体内部含有浊气的空气排出的排风系统，房体的室内空间上表面为低导热表面或者房体的室内空间上表面和侧表面上段均为低导热表面，低导热表面的导热系数小于或等于0.1W/(mK)。室内表面材料具有用于朝向室内空间的低导热表面，低导热表面的导热系数小于或等于0.1W/(mK)。本发明阻止热浊气被迅速冷却而下沉，从而使热浊气停留在室内空间的上层附近，直至排出室外，由此实现真正的置换通风，从而避免室内交叉感染。
The present invention discloses a displacement ventilation type building and an indoor surface material decorative plate for preventing turbid air from being locked in the room. The displacement ventilation type building comprises a room body, an air supply system for inputting fresh air into the room body, and an exhaust system for discharging the air containing turbid air in the room body. The upper surface of the indoor space of the room body is a low thermal conductivity surface, or the upper surface and the upper part of the side surface of the indoor space of the room body are both low thermal conductivity surfaces, and the thermal conductivity coefficient of the low thermal conductivity surface is less than or equal to 0.1W/(mK). The indoor surface material has a low thermal conductivity surface for facing the indoor space, and the thermal conductivity coefficient of the low thermal conductivity surface is less than or equal to 0.1W/(mK). The present invention prevents hot turbid air from being rapidly cooled and sinking, so that the hot turbid air stays near the upper layer of the indoor space until it is discharged outdoors, thereby realizing true displacement ventilation, thereby avoiding indoor cross infection.
Description
Technical Field
The invention belongs to the technical field of house construction, and particularly relates to a displacement ventilation type building capable of avoiding turbid air from being self-locked indoors and an indoor surface material.
Background
The principle of displacement ventilation is that hot air rises and cold air falls based on the difference in air density. Air is supplied from the bottom of the room at a wind speed of less than 0.2m/s, below the indoor air temperature. The replacement ventilation system has been applied to high heat load industrial buildings in europe for more than 40 years, and a foundry in berlin in 1978, germany first adopted the replacement ventilation device. Replacement ventilation systems have also become popular in recent 30 years in non-industrial buildings in northern european countries, such as office buildings, schools, theatres, etc., such as the danish copenhagen theatre. In China, the university of Qinghua researches on the operation conditions of replacement ventilation and mixed ventilation (dilution ventilation) in a cold supply season to obtain that the replacement ventilation is more energy-saving, and meanwhile, the research on particle distribution under different air volumes of the replacement ventilation shows that the air volumes have great influence on particle parts with different particle diameters, the concentration of small-particle-size particles (PM 2.5) is relatively high in an upper region of a room, and the concentration of large-particle-size particles (PM 10) is relatively high in a lower region of the room. The experimental analysis and research on the characteristics of the replacement ventilation air flow are carried out by establishing an air flow laboratory at the university of the same, the influence of the air flow laboratory on the air flow structure is briefly analyzed by changing the heat transfer coefficient of the enclosure structure, the reference data for evaluating the comfort of the replacement ventilation mode are provided, and the analysis and research on the replacement ventilation and cooling top plate composite system are also carried out. The university of east China has been involved in many experimental studies by the French LET laboratory on the interference factors of the displacement ventilation system, such as the effect of water vapor on the performance of the displacement ventilation system. The CFD technology is applied to research on parameter design of the replacement ventilation system by university of Huazhong science and technology, and a determination method of each parameter of the replacement ventilation system is provided, so that the designed system can ensure high indoor air quality and prevent phenomena of overlarge vertical temperature difference, blowing sense and the like. With the application of computational fluid dynamics in heating ventilation, a large number of numerical simulation researches of displacement ventilation flow fields, temperature fields, concentration fields and moisture content distribution are correspondingly carried out, and a plurality of important results are obtained. Referring to fig. 1, the indoor smoke distribution pattern is replaced by ventilation. The fresh air for replacement ventilation replaces the whole room air, and the original air in the room is discharged, namely, the indoor air is replaced by the approximate plug flow formed by the thermal plume of the indoor human body heat source.
In the prior art, the indoor ceiling surface material is generally high in heat conductivity coefficient, the aluminum alloy panel 230W/(m.K), the concrete floor slab 1.5W/(m.K), the gypsum board 0.3W/(m.K), the thermal insulation gypsum 0.07W/(m.K), the cork 0.05W/(m.K) and the hot foul air are cooled and sunk when meeting the ceiling, so that the hot foul air cannot be discharged rapidly, and cross contamination is caused.
Disclosure of Invention
The invention aims to provide a displacement ventilation type building and an indoor surface material for avoiding turbid air from being self-locked in a room. Avoiding the turbid air from being self-locked in the indoor space.
The invention provides a displacement ventilation type building capable of avoiding turbid air from being self-locked indoors, which comprises a house body, an air supply system for inputting fresh air into the house body and an air exhaust system for exhausting air containing turbid air in the house body, and is characterized in that the upper surface of the indoor space of the house body is a low heat conduction surface or the upper surfaces and the upper sections of the side surfaces of the indoor space of the house body are both low heat conduction surfaces, and the heat conduction coefficient of the low heat conduction surface is less than or equal to 0.1W/(mK).
Further, the low heat conduction surface is the surface of the low heat conduction material plate body or the surface of the low heat conduction material coating coated on the inner wall of the building.
Further, the low heat conduction material plate body is a cork board or a thermal insulation gypsum board or a glass fiber board, and the low heat conduction material coating is polyphenyl particle thermal insulation mortar or aerogel thermal insulation material or inorganic fiber spraying thermal insulation material.
Further, the room body is a sealed heat-preserving room body.
The invention also provides another technical scheme that the indoor surface material for preventing the turbid air from being self-locked in the indoor is provided with a low heat conduction surface for facing the indoor space, and the heat conduction coefficient of the low heat conduction surface is less than or equal to 0.1W/(mK).
Further, the low heat conduction surface is the surface of the low heat conduction material plate body or the surface of the low heat conduction material coating coated on the plate body.
Further, the low heat conduction material plate body is a cork board or a thermal insulation gypsum board or a glass fiber board, and the low heat conduction material coating is polyphenyl particle thermal insulation mortar or aerogel thermal insulation material or inorganic fiber spraying thermal insulation material.
Further, the indoor surface material is a ceiling or a wall plate.
Compared with the prior art, the invention has the advantages that the invention prevents the turbid air from self-locking in the indoor displacement ventilation type building and the indoor surface material, and the low heat conduction surface prevents the turbid air from being rapidly cooled and sinking, so that the turbid air stays near the upper layer of the indoor space until being discharged out of the room, thereby realizing real displacement ventilation and avoiding indoor cross infection.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic diagram of indoor smoke distribution during ventilation in the prior art;
FIG. 2 is a block diagram of a building according to a first embodiment of the present invention;
FIG. 3 is a schematic airflow through a building according to a first embodiment of the invention;
FIG. 4 is a schematic airflow diagram of a building according to a second embodiment of the present invention;
fig. 5 is a schematic view of an indoor surface material in a third embodiment of the invention.
10, A house body; 11, the ground, 12, a ground heat insulation layer, 13, a wall body, 14, a wall body heat insulation layer, 15, a roof, 16, a roof heat insulation layer, 17, a low heat conduction surface, 20, an air supply system, 21, a fresh air outlet end, 22, an air supply fan, 30, an air exhaust system, 31, a turbid air receiving end, 32, an air exhaust fan, 40, a ventilation heat recovery system, 41, an air supply conveying device, 42, an air exhaust conveying device, 50, an environment source heat exchange system, 51, a fluid conveying device, 52, a closed internal circulation fluid, 61, an indoor refrigerating and heating device, 62, a fresh air refrigerating and heating device, 70, a low heat conduction material plate body, 71 and a low heat conduction surface.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. 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 exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof. In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, are merely relational terms determined for convenience in describing structural relationships of the various components or elements of the present disclosure, and do not denote any one of the components 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 coupled," "connected," "coupled," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection, or both, as well as directly or indirectly via an intermediary. The specific meaning of the terms in the disclosure may be determined according to circumstances, and should not be interpreted as limiting the disclosure, for relevant scientific research or a person skilled in the art.
The following is a preferred embodiment for illustrating the present invention, but is not intended to limit the scope of the present invention.
Example 1
Referring to fig. 2 to 3, as shown in the drawings, a building for preventing the turbid air from being self-locked in a room comprises 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 turbid air contained in the room body 10, wherein the upper surface of the indoor space of the room body 10 is a low heat conduction surface 17, and the heat conduction coefficient of the low heat conduction surface 17 is less than or equal to 0.1W/(mK). In other embodiments, the upper surface and the upper section of the side surface of the indoor space of the room body are both low heat conduction surfaces.
In a preferred embodiment of this embodiment, the low thermal conductivity surface 17 is a surface of a low thermal conductivity coating coated on an inner wall of a building, and the low thermal conductivity coating is polyphenyl granule thermal insulation mortar or aerogel thermal insulation material or inorganic fiber spray insulation material. In other embodiments, the low heat conduction surface may be a surface of a low heat conduction material plate body (a ceiling or a wall plate), the low heat conduction material plate body is a cork board or a thermal insulation gypsum board or a glass fiber board, or the low heat conduction surface may be a low heat conduction material coating coated on the plate body (the ceiling or the wall plate).
In the preferred embodiment of this embodiment, the house 10 is a sealed heat-preserving house, the sealed heat-preserving house includes a bottom, a wall and a top, the bottom of the sealed heat-preserving house includes a ground 11 and a ground heat-preserving layer 12 disposed outside the ground 11, the wall of the sealed heat-preserving house includes a wall 13 and a wall heat-preserving layer 14 disposed outside the wall 13, and the top of the sealed heat-preserving house includes a roof 15 and a roof heat-preserving layer 16 disposed outside the roof 15.
In a preferred embodiment of this embodiment, the building is a displacement ventilation low energy consumption building, which also includes a ventilation heat recovery system 40, an environmental source heat exchange system 50, and a refrigeration and heating system.
The ventilation heat recovery system 40 includes an air supply conveyor 41 connected to the fresh air supply inlet of the air supply system 20 and an air exhaust conveyor 42 connected to the turbid air receiving outlet of the air exhaust system 30, wherein the air supply conveyor 41 exchanges heat with the air exhaust conveyor 42, and the air supply conveyor 41 and the air exhaust conveyor 42 are pipes.
The environment source heat exchange system comprises a fluid conveying device 51 for exchanging heat with the natural environment, wherein an inlet of the fluid conveying device 51 is communicated with a closed internal circulation fluid 52, fluid output by the fluid conveying device 51 exchanges heat with air in the sealed heat-preserving room body 10 and/or fluid output by the fluid conveying device 51 exchanges heat with air sent into the sealed heat-preserving room body 10, and the fluid conveying device 51 is a ground source heat pump or a water source heat pump or an air source heat pump.
The cooling and heating system includes an indoor cooling and heating device 61 for cooling or heating air in the sealed heat-insulating room 10 to a set temperature, and a fresh air cooling and heating device 62 for cooling or heating fresh air sent from the air supply system 20 to a temperature lower than the set temperature.
In a preferred embodiment of the present embodiment, the indoor cooling and heating device 61 is a cold and heat radiation floor, and the fluid output from the fluid delivery device 51 enters the coil of the cold and heat radiation floor. In other embodiments, the indoor cooling and heating device comprises a radiant heating floor and a radiant cooling floor which are respectively arranged, or the indoor cooling and heating device is a cold and hot radiant ceiling, or the indoor cooling and heating device comprises a radiant heating ceiling and a radiant cooling 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 air pressure into the sealed heat-preserving chamber 10, and the air exhaust system 30 further includes an air exhaust fan 32 for exhausting negative air pressure out of the sealed heat-preserving chamber 10. In other embodiments, the air supply fan is not arranged, and only the air exhaust fan is arranged.
In a preferred embodiment of the present invention, the air supply system further includes an air filter (not shown) for filtering suspended particles in the fresh air supplied from the air supply system, a sterilizing device (not shown) for sterilizing the fresh air supplied from the air supply system, and a dehumidifying device (not shown) for dehumidifying the fresh air supplied from the air supply system.
In the preferred embodiment of the present embodiment, a plurality of people gathering bands are distributed in the sealed heat-preserving room body 10, the position of the fresh air sending end 21 is lower than the position of the nose and mouth of the people gathering band, the position of the foul air receiving end 31 is higher than the position of the nose and mouth of the people gathering band, one or more fresh air sending ends 21 are arranged below one side of each people gathering band, one or more foul air receiving ends 31 are arranged above or right above the other side of each people gathering band, the sealed heat-preserving room body 10 is divided into a first vertical cylindrical space and a second vertical cylindrical space which are alternately arranged in sequence along the horizontal direction, the people gathering bands are arranged in the first vertical cylindrical space, the fresh air sending 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, a person gathering belt is distributed in the sealed heat-preserving room body, the fresh air sending end is arranged at the lower end of the ground or a corner or a wall of the sealed heat-preserving room body, and the turbid air receiving end is arranged at the upper end of the top wall or the wall of the sealed heat-preserving room body.
In a preferred embodiment of the present embodiment, the set temperature is an indoor temperature, the set temperature is 20 ℃ to 26 ℃, and the temperature of the fresh air sent from the fresh air sending end 21 is lower than the set temperature by not more than 3 ℃. In other embodiments, the set temperature may be other temperatures, as long as the temperature is appropriate.
In the preferred embodiment of this embodiment, the fresh air delivery end 21 is a fiber air distribution pipe. In other embodiments, a diffuser or the like can be adopted at the fresh air sending end.
In the preferred embodiment of this embodiment, the upper surface of the indoor space of the sealed heat-insulating room body 10 is a low heat-conducting surface 17, and the heat conductivity coefficient of the low heat-conducting surface 17 is less than or equal to 0.1W/(mK). In other embodiments, the upper surface and the upper section of the side surface of the indoor space of the sealed heat-insulating room body are both low heat conduction surfaces.
In the preferred embodiment of the present embodiment, a plurality of people gathering belts are distributed in the sealed heat-preserving room 10, the fresh air sending end 21 is arranged at the bottom of the sealed heat-preserving room 10, and the turbid air receiving end 31 is arranged at the top of the sealed heat-preserving room 10. In other embodiments, when a person gathering belt is distributed in the sealed heat-preserving room body, the fresh air sending end is arranged at the lower end of the ground or a corner or a wall of the sealed heat-preserving room body, and the turbid air receiving end is arranged at the upper end of the top wall or the wall of the sealed heat-preserving room body.
In a preferred embodiment of this embodiment, the low energy building is one of a passive building or an ultra low energy building based on a passive building, a near zero energy building, a zero carbon building, a carbon neutral building, and an energy producing building.
In the preferred embodiment of this example, the air fed into the sealed insulated housing 10 is uniformly distributed at the lower portion, then flows upward, encounters a heat source, is heated, flows upward slowly, and withdraws the sealed insulated housing 10 at the upper portion. In offices/rooms with large volumes, in order to avoid the diffusion of hot dirty gas indoors, a fresh air sending end is arranged at the bottom between people gathering belts, the fresh air sending end evenly sends out cold air with the speed of 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 hot dirty gas is radiated through floors, heat provided by indoor human body heat sources, the cold air slowly rises in temperature, and the cold air and the hot dirty gas generated indoors reach the top area of a ceiling together. The ceiling top areas among different human bodies are discharged outdoors, so that the indoor cross infection is avoided, and the indoor environmental health is improved. Meanwhile, the fresh air utilization rate can be improved, the fresh air demand can be reduced, and therefore the energy consumption can be reduced. The method can adopt replacement ventilation (namely, the weather that the indoor can be condensed in the natural state in the south China, namely 'Huang Meitian' or 'returning to the south') in the winter and summer and the plum rain season so that the fresh air fed into the room is not mixed with the indoor hot dirty gas to form laminar flow, the indoor hot dirty gas rises to the ceiling area and is discharged out of the room, and the indoor cross infection is avoided. In the cooling period in summer, fresh air is fed from the indoor bottom at a low speed after being cooled (the temperature of the fresh air is lower than the room temperature by 3 ℃), and the fresh air is slowly dispersed at the indoor bottom and meets the indoor human heat source, is heated and slowly rises. In the heating period in winter, outdoor fresh air is only filtered, and is directly and slowly fed into the heat exchanger (the fresh air temperature is lower than the room temperature by 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 due to the heat radiation of the floor, so that laminar flow is formed. The hot turbid air exhaled by the person rises and is discharged outdoors above the room. The purpose of the heat preservation coating on the surface of the ceiling is to prevent the hot foul gas from being quickly cooled and sinking to be mixed with other air after contacting the ceiling, reduce the residence time of the hot foul gas in the room and avoid cross infection in the room. By using displacement ventilation, turbid air is not laterally diffused in the bottom area of the room and is directly carried to an upper non-personnel stay area of the room by ascending air flow, so that a comfortable and healthy environment is created for a working area. For seasons with mild outdoor temperature in spring and autumn, natural ventilation with windowing is recommended, and the method is the best method for avoiding indoor cross infection.
Example two
Referring to fig. 4, as shown in the illustration, the rest is the same as the first embodiment, except that a person gathering belt is distributed in the sealed heat-preserving room body, the fresh air sending end is arranged at the lower end of the ground or the corner or the wall of the sealed heat-preserving room body, and the turbid air receiving end is arranged at the upper end of the top wall or the wall of the sealed heat-preserving room body.
In this embodiment, in a small-sized office/room, cool air with a velocity of less than 0.2m/s is fed downward from the bottom of one side of the room, and is radiated through the bottom heat, and the heat supplied from the indoor human heat source, the cool air is slowly warmed up and rises, and reaches the ceiling top area together with the heat stain generated in the room, and is discharged out of the room above the other side. Almost no pollution gas exists in the working area, indoor cross infection is avoided, indoor environmental health is improved, the demand of fresh air quantity can be effectively reduced, and energy consumption is reduced.
The buildings in the first embodiment and the second embodiment realize indoor airflow control by regulating and controlling various factors influencing indoor air temperature, wind direction, wind speed and the like, namely regulating and controlling factors influencing airflow, particularly a turbid air path, and timely discharge turbid air, so that cross infection is avoided. The specific technical measures are as follows:
1. The influence and interference of the external environment on the indoor environment are eliminated, and a high airtight high heat preservation and mechanical ventilation (fresh air) system which meets the technical requirements of buildings is adopted. Ordinary buildings are susceptible to external environmental influences:
① Building with poor air tightness can generate leakage air, so that indoor air is mixed;
② When 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 flows easily in a circulating way;
③ When no mechanical ventilation is available, the windowing can have influence on the air flow and the temperature;
④ The influence of the overall temperature difference of the room on the air flow.
2. The method avoids the problem that the air temperature of the adjacent turbid air is reduced to enable the turbid air to sink due to heat dissipation of the ceiling surface and the upper wall surface, and avoids the problem that the turbid air cannot be discharged due to self-locking of the middle layer, and adopts a low-thermal-conductivity surface material or paint.
3. The lower part is slowly fed with cold air (fresh air slightly lower than room temperature) passing through the heat exchanger at a speed of not more than 0.2m/s, and the ground radiation heating is used for replacing hot air feeding in winter, so that turbulence is avoided, and an indoor cold air lake is formed. In summer, the ground radiation refrigeration is used for guaranteeing comfortable room temperature, and fresh air is used for refrigerating to provide fresh air slightly lower than the room temperature, so that turbulence is avoided, and a cold air lake is formed.
4. The natural law of sinking of cold air and rising of hot air is followed, and the turbid air is discharged by adopting downward cold air (fresh air).
① The method has the advantages that only fresh air is refrigerated under the working condition that cross infection needs to be avoided, and circulating air is not used;
② Under the working condition that cross infection needs to be avoided, the temperature is kept slightly lower than the room temperature and acceptable in four seasons, and the temperature difference is not more than 3 ℃.
5. The floor is used for large-area low-temperature heating in winter, so that the indoor airflow is prevented from being disturbed by a concentrated heat source (such as a radiator) or unbalanced heating (such as one-side wall heating). Meanwhile, the overlarge indoor vertical temperature gradient can be avoided;
6. The open large space is subjected to grid distributed air flow control, and the air flow path of 'fresh air-human body-turbid air-discharge' is followed, so that the trend of 'human body-turbid air-human body' air flow is avoided:
① The air return opening (air outlet) is as close to the turbid air source head as possible, and the shortest path is discharged, but the short circuit between the air supply end and the air exhaust end is avoided.
② The return air inlet is built right above the dense people flow, the trend of the air flow is vertical upwards as far as possible (the return air and the fresh air form a vertical trend to form a vertical air flow control), in a word, the principle one is that the people passing of the turbid air is avoided, and the principle two is that the turbid air is discharged as soon as possible.
Example III
Referring to fig. 5, as shown in the legend therein, an indoor surface material for preventing the foul air from being self-locked to the indoor has a low heat conduction surface 71 for facing the indoor space, and the low heat conduction surface 71 has a heat conduction coefficient of less than or equal to 0.1W/(mK).
In the preferred embodiment of this embodiment, the low thermal conductivity surface 71 is the surface of the low thermal conductivity plate 70, and the low thermal conductivity plate 70 is a cork board, a thermal insulation gypsum board, or a fiberglass board. In other embodiments, the low heat conduction surface is the surface of a low heat conduction material coating coated on the plate body, and the low heat conduction material coating is polyphenyl particle heat insulation mortar or aerogel heat insulation material or inorganic fiber spray heat insulation material.
In a preferred embodiment of this embodiment, the indoor surface material is a ceiling. The ceiling with low heat conduction is arranged on the top of the indoor space. In other embodiments, the indoor surface material is a wall panel. The wall plate with low heat conduction is integrally arranged on the side wall of the indoor space, or the wall plate with low heat conduction is arranged on the upper section of the side wall of the indoor space.
By arranging the indoor surface material on the upper section of the top wall or the side wall of the displacement ventilation type building, after the hot foul gas contacts the indoor surface material, the hot foul gas can not be rapidly cooled and then is mixed with other air, so that the residence time of the hot foul gas in the room is reduced, and the indoor cross infection is avoided.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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)
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| CN202110179175.3A CN112814145B (en) | 2021-02-08 | 2021-02-08 | Displacement ventilation buildings and indoor surface materials that prevent foul air from being 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 |
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| CN202110179175.3A CN112814145B (en) | 2021-02-08 | 2021-02-08 | Displacement ventilation buildings and indoor surface materials that prevent foul air from being locked indoors |
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| CN112814145B (en) * | 2021-02-08 | 2025-02-28 | 苏州大学 | Displacement ventilation buildings and indoor surface materials that prevent foul air from being locked indoors |
| CN112781146A (en) * | 2021-02-08 | 2021-05-11 | 苏州大学 | Replacement ventilation type building capable of soft air supply |
| CN112781147A (en) * | 2021-02-08 | 2021-05-11 | 苏州大学 | Replacement ventilation type passive house |
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| WO2017118342A1 (en) * | 2016-01-04 | 2017-07-13 | 蒋卫国 | Energy-saving house, energy-saving curtain wall, decorative wall, and plastered wall |
| CN211447235U (en) * | 2019-08-13 | 2020-09-08 | 江苏捷阳科技股份有限公司 | Passive room |
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| 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 |
| RU2014132160A (en) * | 2014-08-05 | 2016-02-20 | Геннадий Алексеевич Закладной | GRAIN STORAGE METHOD |
| CN209310196U (en) * | 2018-12-25 | 2019-08-27 | 苏州恩基热能科技有限公司 | Heat pump mill construction |
| 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 |
| CN112781150A (en) * | 2021-02-08 | 2021-05-11 | 苏州大学 | Radiation type refrigerating and heating passive house |
| CN112814145B (en) * | 2021-02-08 | 2025-02-28 | 苏州大学 | Displacement ventilation buildings and indoor surface materials that prevent foul air from being locked indoors |
| CN112781147A (en) * | 2021-02-08 | 2021-05-11 | 苏州大学 | Replacement ventilation type passive house |
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- 2021-06-08 WO PCT/CN2021/098795 patent/WO2022166055A1/en active Application Filing
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| JPH07145957A (en) * | 1993-11-25 | 1995-06-06 | Nakamura:Kk | Indoor air conditioner |
| WO2017118342A1 (en) * | 2016-01-04 | 2017-07-13 | 蒋卫国 | Energy-saving house, energy-saving curtain wall, decorative wall, and plastered wall |
| CN211447235U (en) * | 2019-08-13 | 2020-09-08 | 江苏捷阳科技股份有限公司 | Passive room |
| CN214497845U (en) * | 2021-02-08 | 2021-10-26 | 苏州大学 | Replacement ventilation type building and indoor surface material capable of preventing foul air from being self-locked indoors |
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