CN115095942A - Bidirectional flow full-house fresh air system with toilet in room - Google Patents
Bidirectional flow full-house fresh air system with toilet in room Download PDFInfo
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- CN115095942A CN115095942A CN202210613129.4A CN202210613129A CN115095942A CN 115095942 A CN115095942 A CN 115095942A CN 202210613129 A CN202210613129 A CN 202210613129A CN 115095942 A CN115095942 A CN 115095942A
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Classifications
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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
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F24F7/003—Ventilation in combination with air cleaning
Abstract
The invention provides a bidirectional flow whole-house fresh air system with toilets in rooms, which is used for a room group, wherein the room group comprises at least one first room with the toilets in the inside and a public space communicated with the first room; the first room comprises a room body and a toilet communicated with the room body; whole house new trend system includes: the fresh air module is used for sending outside fresh air into a public space; the air exhaust module is used for sucking and exhausting the dirty air in the room group to the outside of the room group; the room fresh air inlet is used for sending fresh air in the public space into the room body; the toilet vent is used for discharging the dirty air in the room body into the toilet; the toilet air return pipe is connected with the air exhaust module and used for exhausting the dirty air in the toilet; the air return inlet of the air return pipe of the toilet is positioned in the toilet; the relay fan is arranged in the room body, and the distance between the room fresh air port and the air suction port of the relay fan is smaller than the distance between the room fresh air port and the toilet ventilation port.
Description
Technical Field
The invention belongs to a ventilation system of a building, and particularly relates to a bidirectional flow whole-house fresh air system with a toilet arranged in a room.
Background
Air, which is a vital element that every living body of our human beings cannot leave every quarter of a year; our dependence on air, and even on all other vital elements, including food and water. Most of our lives are in residences, and essentially live in indoor secondary air environments formed by enclosing walls and floors of the residences. Carbon dioxide and excrement produced by human metabolism, oil smoke generated by kitchen cooking, water vapor evaporated from bathing, benzene and formaldehyde volatilized from indoor decoration materials and the like cause indoor air pollution, and release huge demands of people on house ventilation and improvement of indoor secondary environment quality.
Our living space requires continuous, stable, high quality replacement of fresh air, but residential ventilation is not equal to opening doors and windows. In winter and summer with quality indexes such as air temperature and humidity deviating from normal values, in weather periods such as haze days, sand-blown days, south returning days, plum rainy seasons and the like, in windless periods when the atmosphere is in a static state, and in epidemic prevention periods when viruses frequently abuse and need to increase indoor ventilation, mechanical ventilation equipment is needed to carry out concentrated filtration, temperature reduction and dehumidification (heating and temperature rise) on fresh air, fresh air flow with appropriate temperature, humidity, cleanliness and freshness is input, secondary environment quality in a sleeve is improved, and the living ideal that 'the quality from nature is higher than nature' is realized.
However, in order to meet the demand of fresh air for a house, a simple fresh air system is assembled on a new building, a PVC air supply pipeline for communicating each room is mostly arranged on an air supply fan module and a suspended ceiling, the PVC air supply pipeline is in a blind-bowel type unidirectional flow, and the actual effect of bidirectional flow of fresh air pressurized feeding and dirty air negative pressure collection and discharge synchronous operation is not achieved; because the processing precision of the existing door and window is very high, the air tightness is very good, and the dirty air cannot be discharged and fresh air cannot be sent in without opening the door and window of a room and matching. The cecum type unidirectional flow fresh air system in the current building deviates from the basic principle of three-stage type and bidirectional flow of ventilation, and causes the problems that the dirty air in a room cannot be discharged, the fresh air cannot be fed, and the inner wall of a fresh air supply pipe is condensed to attach dust bacteria microorganisms to become a culture medium to cause secondary pollution.
In fact, in the design and construction process of the house, the inner wall, the outer wall and the doors and windows divide the originally spacious and open complete house space into a plurality of functional units such as a living room, a bedroom, a study room, a kitchen, a toilet and a storage room, and the functional space units are difficult to achieve natural ventilation with the outdoor environment and even difficult to operate even with forced ventilation.
The residential structure of Chinese residents is different from that of European villas; the basic properties of low floor height, multiple inner walls and small unit spaces are the design starting points of mechanical ventilation systems of Chinese residences: under the condition of the current situation that the floor height is 3000mm, two sets of pipelines for feeding fresh air and discharging dirty air cannot be installed, and the building area can not be reduced by 10% by increasing the floor height by 300mm to 3300 mm; and because two sets of pipelines for bidirectional flow and air supply and exhaust, a fresh air module and an air exhaust module are additionally arranged, and the suspended ceiling area is additionally arranged by decorating the two sets of pipelines, the cost is difficult to digest.
Meanwhile, in the overall planning design of a residential fresh air system, the problems of residential fresh air replacement for improving the quality of secondary environment in a building are solved, the problems of self energy consumption of a ventilation project and air conditioner energy consumption directly related to fresh air replacement need to be concerned, and the ventilation and air conditioner energy consumption becomes a main body of building energy consumption.
The building energy consumption (about 10 hundred million tons of standard coal equivalent) in China accounts for 22% of the total social energy consumption, and is parallel to industrial energy consumption and traffic energy consumption to become three swords of the total social energy consumption; and as the residential conditions are improved and the city is updated, the building energy consumption and the proportion are further improved, and the carbon peak carbon neutralization focus in China and the world is formed.
In recent years, the building energy-saving technology is extremely rapidly developed, diversified and general in forest, but can be classified into three types of building material energy saving, equipment process energy saving and building structure energy saving:
building materials are energy-saving, for example, a wall body is built by adopting hollow bricks and foamed cement bricks, an external wall surface of a building is paved by adopting rock wool boards and polyurethane foamed boards, and the like, and the heat insulation performance of the hollow bricks, the foamed cement bricks, the rock wool boards and the polyurethane foamed boards is utilized to block the transmission of heat inside and outside the wall body so as to reduce the energy consumption of the building;
secondly, energy is saved in equipment and process types, for example, a residential air conditioner adopts an independent temperature and humidity adjusting mode, and the indoor temperature is properly increased under the condition of reducing indoor relative humidity and maintaining body feeling comfort level so as to reduce the indoor and outdoor temperature difference and reduce heat leakage and air conditioner energy consumption; the heat pump hot water unit and large-area ground wall capillary radiation are adopted for heating, so that the water temperature is reduced, and the heating efficiency of the heat pump is improved; the building vertical lifting system adopts an intelligent elevator pulled by a variable frequency motor and the like, and the technical process of optimizing residential energy equipment is improved so as to realize the residential manufacturability energy saving;
energy is saved in structural class, for example, a heat-insulation bridge aluminum alloy door and window is adopted, and a heat-insulation nylon connecting piece is embedded between an inner layer aluminum alloy frame and an outer layer aluminum alloy frame so as to block heat conduction between the inner layer aluminum alloy frame and the outer layer aluminum alloy frame; point type houses are reduced, strip type house structure design is greatly promoted, the external wall area and the specific surface area of a house building are reduced, the energy exchange strength inside and outside the house is reduced, energy consumption is reduced, and the like, and the structural energy conservation of the building is realized by optimizing the structure of the building or the structure of building parts;
among the three types of building energy-saving technologies, the first type of building material energy-saving technologies such as wall heat preservation and hollow glass have been widely applied to obtain very excellent technical effects, and the space for improving the energy-saving effect by continuously improving the heat insulation performance and the thickness of the building material is very narrow; the second type of residential energy equipment is technically energy-saving, the technology is relatively complex, and through the hard efforts of Chinese engineers, the residential energy equipment such as elevators, air conditioners, water heaters, cooking utensils and the like is taken as the representative of 'Chinese building', and the energy-saving level of the residential energy equipment is popular in the world; the third type of structural energy conservation is to reduce the area of the outer wall and the specific surface area of the residential building through the optimization of the building structure and reduce the indoor and outdoor heat transfer temperature difference through the optimization of the space relation of building components, thereby realizing the structural energy conservation of the building and greatly improving the space.
The basic attributes of low-rise height, multiple inner walls and small unit spaces of Chinese residential houses are taken as starting points, the problems of path, power and efficiency of fresh air replacement and the problems of ventilation and building energy conservation are focused, the two problems of fresh air replacement and building energy conservation are effectively solved through the optimization of building components, particularly the relation between electromechanical components and buildings, and the method is a major mission and a difficult task in real estate industry, building design industry and fresh air conditioning industry.
Disclosure of Invention
In order to solve the problems, the invention provides a bidirectional flow whole-house fresh air system with a toilet arranged in a room, which is used for a room group, wherein the room group comprises at least one first room with the toilet arranged therein and a public space communicated with the first room; the first room comprises a room body and a toilet communicated with the room body; bidirectional flow whole house new trend system includes:
the fresh air module is arranged on the room group and used for sending outside fresh air into the public space;
the air exhaust module is arranged on the room group and used for sucking and exhausting the dirty air in the room group to the outside of the room group;
the room fresh air port is formed in the enclosing structure of the room body and used for sending fresh air of the public space into the room body;
the toilet ventilation opening is formed in the enclosing structure of the toilet and used for discharging dirty air in the room body into the toilet;
the toilet air return pipe is connected with the air exhaust module and used for exhausting the dirty air in the toilet out of the room group; the air return inlet of the toilet air return pipe is positioned in the toilet;
the relay fan is arranged in the room body, and the distance between the room fresh air port and the suction opening of the relay fan is smaller than the distance between the room fresh air port and the toilet ventilation opening;
when the first room fresh air replacement is operated, under the action of the relay fan, fresh air entering the room body from the room fresh air inlet enters the relay fan from the air suction port of the relay fan, is discharged from the air outlet of the relay fan at a high speed, so that air flowing and fresh air replacement in the room body are pushed, and dirty air in the room body enters the toilet from the toilet ventilation port and is discharged out of a room group through the toilet air return pipe and the air exhaust module in sequence.
Preferably, the fresh air module is arranged in the public space and used for directly sending outside fresh air into the public space.
Preferably, the room group further comprises a second room, the second room being in communication with the common space;
the fresh air module is arranged in the second room, and a room air outlet is formed in the enclosure structure of the second room; when the air conditioner runs, the fresh air module firstly sends outside fresh air into the second room, and then the fresh air is sent into the public space through the room air outlet.
Preferably, the fresh air module comprises an air inlet boosting device, a header and a fresh air fan coil which are sequentially connected, the header is communicated with the air inlet boosting device and the fresh air fan coil, and the air inlet boosting device is communicated with the external atmosphere; an air inlet fan is arranged in the air inlet boosting device; the fresh air fan coil is arranged on the outer wall of the public space or the second room or a position close to the outer wall.
Preferably, an air distribution pore plate is arranged in the header, and the air distribution pore plate is positioned between the air inlet and the air outlet of the header.
Preferably, the exhaust module comprises a central air pipe and an exhaust fan, and the toilet return air pipe is connected with the central air pipe; the central air pipe is connected with the exhaust inlet of the exhaust fan through at least one rear end air pipe, and the exhaust outlet of the exhaust fan is communicated with the external atmosphere.
Preferably, a room fan coil is arranged on or near the outer wall in the room body, and when the room fan coil circulates in the room body, air in the room body enters the room fan coil from the air suction port of the room fan coil under the action of a fan of the room fan coil and is discharged into the room body through the air outlet of the room fan coil.
Preferably, the air outlet of the room fan coil is provided with a transverse guide plate for controlling the air outlet direction to swing left and right and a longitudinal guide plate for controlling the air outlet direction to swing up and down.
Preferably, the room fresh air inlet is arranged on a wall of the room body, a door head of a door of the room body or a door leaf of the door of the room body.
Preferably, the toilet vent is provided on a wall of the toilet, a door head of the toilet door, or a door leaf of the toilet door.
Preferably, the room fresh air inlet is arranged at the upper part of a door leaf of a room door of the room body, and the toilet ventilation opening is arranged at the lower part of the door leaf of the toilet door.
Preferably, a first air door is arranged on the room fresh air inlet.
Preferably, the first air door is an electric air door and comprises an electric driving device and a sliding sheet, the electric driving device is provided with a telescopic push rod, the sliding sheet is connected with the push rod, and the electric driving device drives the sliding sheet to open or close the room fresh air opening through the push rod.
Preferably, two sides of the room fresh air inlet are provided with first grids, each first grid comprises a plurality of first grids which are sequentially arranged in parallel from top to bottom, and the first grids incline from the inner side to the outer side from top to bottom.
Preferably, a second air door is arranged on the toilet ventilation opening.
Preferably, two sides of the toilet vent are provided with second grids, each second grid comprises a plurality of second grids which are sequentially arranged in parallel from top to bottom, and the second grids incline from the inner side to the outer side from top to bottom.
Preferably, the relay fan, the air return inlet of the toilet air return pipe and the room fan coil are all arranged in the ceiling, and the air suction inlet of the relay fan, the air return inlet of the toilet air return pipe and the air suction inlet of the room fan coil are all arranged downwards.
Compared with the prior art, the invention has the following technical effects:
high-efficiency non-blind-area fresh air replacement
The invention relates to a bidirectional flow whole-room fresh air system with a toilet arranged in a room, wherein an exhaust module, a relay fan, a room fresh air port and a toilet vent are synchronously started, the exhaust module sucks dirty air in the room through a return air inlet of a toilet return air pipe to generate primary negative pressure, the relay fan operates, an air suction inlet of the relay fan generates lower secondary negative pressure, fresh air in the fresh air port is introduced into the relay fan by the secondary negative pressure, is boosted by the relay fan and then is emitted to one side of an outer wall to be reflected and reflowed by the outer wall, enters the toilet from the toilet vent and is discharged through the return air inlet of the toilet return air pipe, and the relay fan plays a key role of ' gravitational slingshot ' of ' introduction-boosting-ejection of the fresh air in the room fresh air replacement; the primary negative pressure, the secondary negative pressure and the gravitational slingshot jointly push the fresh air flow of the room to move, and continuously press and drive dirty air to be conveyed to the outdoor through an air return opening of a return air pipe of the toilet, so that the efficient non-blind area fresh air replacement of the room is realized.
Secondly, reduce the energy consumption of the building
The invention relates to a bidirectional flow full-room fresh air system with a toilet arranged in a room, which obtains heat exchange strength Q (equal to KxS x delta T) by analyzing the heat flow process inside and outside a building, namely obtains the direct proportional relation between the heat exchange strength Q inside and outside the building and the total heat transfer coefficient K of an outer wall, the area S of the outer wall and the difference delta T between the inside and the outside of the outer wall, and does not change the simple direct proportional relation between Q and delta T between the mathematical structure complexity of K and the operation process complexity; according to the invention, the fan coil pipe of the room is arranged at the position adjacent to the outer wall, when the room circulates in the room, the structure of the room temperature field is changed to enable the temperature of the inner side of the outer wall to rise in summer, the temperature of the inner side of the outer wall to fall in winter and the temperature of the inner side of the outer wall to approach the temperature of the outer side of the outer wall in winter, the difference (delta T) between the inner temperature and the outer temperature of the outer wall is reduced by structural change of the room temperature field, and then the heat exchange strength Q between the interior and the exterior of the building is reduced, so that the energy consumption of the building is reduced;
of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. In the drawings:
fig. 1 is a schematic structural diagram of a bidirectional flow whole-house fresh air system with a toilet in a room according to a preferred embodiment 1 of the present invention;
fig. 2 is an operation diagram of a bidirectional flow whole-house fresh air system with a toilet in a room according to the preferred embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of fresh air in a first room according to preferred embodiment 1 of the present invention;
fig. 4 is a new air replacement operation diagram of a new air system in a first room according to the preferred embodiment 1 of the present invention;
FIG. 5 is a schematic diagram of the construction of an electrically operated damper according to the preferred embodiment of the present invention;
fig. 6 is a schematic structural diagram of a bidirectional flow whole-house fresh air system with a toilet in a room according to the preferred embodiment 2 of the present invention;
fig. 7 is an operation diagram of a bidirectional flow whole-house fresh air system with a toilet in a room according to the preferred embodiment 2 of the present invention;
FIG. 8 is a schematic structural diagram of fresh air in a first room with a fan coil disposed adjacent to an exterior wall according to preferred embodiment 2 of the present invention;
FIG. 9 is a diagram illustrating the operation of the fresh air replacement in the first room fresh air system with the fan coil disposed adjacent to the outer wall according to the preferred embodiment 2 of the present invention;
FIG. 10 is a diagram of the internal circulation operation of a first room fresh air system with a room fan coil disposed adjacent to an exterior wall according to preferred embodiment 2 of the present invention;
FIG. 11 is a schematic diagram of three-stage heat input from the ambient atmosphere (left side) to the indoor air (right side) through the outer wall in summer;
FIG. 12 is a diagram of a room air flow velocity field and a temperature field with a conventional room fan coil installed at a deep portion of a room (the length of an air flow arrow is proportional to the magnitude of the air flow velocity at that location, and the gradual change in temperature at each point on the air flow line reflects the room temperature field in the operating mode);
FIG. 13 is a first room air flow velocity field and temperature field with the room fan coil disposed adjacent to the exterior wall according to preferred embodiment 2 of the present invention (the length of the air flow arrow is proportional to the air flow velocity at that location, and the gradual change in temperature at each point on the air flow line reflects the room temperature field in this operating mode);
fig. 14 is a schematic structural diagram of a fresh air module with an air distribution hole plate according to preferred embodiment 3 of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will aid those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any manner. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
Referring to fig. 1 to 4, a bidirectional flow whole-house fresh air system with a toilet in a room is used for a room group, wherein the room group comprises at least a first room 4 with the toilet in the room and a public space 7 communicated with the first room 4; the first room 4 includes a room body 41 and a toilet 42; bidirectional flow whole house fresh air system includes:
the fresh air module 1 is arranged on the room group and used for sending outside fresh air into the public space 7;
the air exhaust module 2 is arranged on the room group and used for sucking and exhausting the dirty air in the room group to the outside of the room group;
a room fresh air inlet 411 which is arranged on the enclosure structure of the room body 41 and is used for sending fresh air of the public space 7 into the room body 41;
a toilet vent 421 provided on a surrounding structure of the toilet 42 for discharging the dirty air in the room body 41 into the toilet 42;
the toilet air return pipe 3 is connected with the exhaust module 2 and used for exhausting the dirty space in the toilet 42 to the outside of the room group; the air return opening 31 of the toilet air return pipe 3 is positioned in the toilet 42 and is far away from a toilet vent 421;
the relay fan 5 is arranged in the room body 41, and the distance between the room fresh air inlet 411 and the air suction opening of the relay fan 5 is smaller than the distance between the room fresh air inlet 411 and the toilet ventilation opening 421.
The fresh air module 1 can directly or indirectly send outside fresh air into the public space 7:
as an implementation mode of directly supplying fresh air, the fresh air module 1 is arranged in the public space 7 and used for directly sending the outside fresh air into the public space 7. When the whole fresh air system runs, external fresh air firstly enters the public space 7 through the fresh air module 1, then enters the room body 41 of the first room 4 through the fresh air inlets 411 of the rooms, under the action of the relay fan 5 in the room body 41, the fresh air entering from the fresh air inlets 411 of the rooms firstly enters the relay fan 5 through the air suction inlet of the relay fan 5, is discharged at a high speed through the air outlet of the relay fan 5, pushes the air in the room body 41 to flow and replace the fresh air, and dirty air in the room body 41 enters the bathroom 42 from the bathroom air inlet 421, and then is discharged out of a room group through the bathroom air return pipe 3 and the air exhaust module 2 in sequence.
As an embodiment for communicating fresh air, the room group further comprises a second room, and the second room is communicated with the public space 7; the fresh air module 1 is arranged in the second room, and a room air outlet is formed in an enclosure structure of the second room; when the air conditioner runs, the fresh air module 1 firstly sends outside fresh air into the second room, and then the fresh air is sent into the public space 7 through the room air outlet. When the whole fresh air system runs, external fresh air firstly enters the second room through the fresh air module 1, then enters the public space 7 through the room air outlet of the second room, then enters the room body 41 of each first room 4 through the room fresh air inlet 411, under the action of the fan of the relay fan 5 in the room body 41, the fresh air entering from the room fresh air inlet 411 firstly enters the relay fan 5 through the air suction port of the relay fan 5, is discharged at high speed through the air outlet of the relay fan 5 to push the air in the room body 41 to flow and replace the fresh air, and the dirty air in the room body 41 enters the toilet 42 from the toilet air vent 421, and then is discharged out of a room group through the toilet air return pipe 3 and the air exhaust module 2 in sequence.
The fresh air module 1 and the air exhaust module 2 belong to mature technologies in the field, and this embodiment is not specifically limited thereto, and may be a fan, a fan coil, or the like. In this embodiment, a total air inlet is provided on an outer wall of the public space 7 or the second room, the fresh air module 1 is provided on the total air inlet, and the fresh air module 1 includes a fresh air blower. The outer wall of any room or public space 7 is provided with a general air outlet, the air exhaust module 2 is arranged on the air outlet, and the air exhaust module 2 comprises an air exhaust fan.
The present embodiment is not particularly limited to the specific arrangement of the room fresh air opening 411, and the room fresh air opening 411 may be arranged on the wall of the room body 41, or on the door head of the door of the room body 41, or on the door leaf 413 of the door of the room body 41.
The room fresh air opening 411 may or may not be provided with a first air door, which can be set according to actual use requirements.
When the room fresh air opening 411 is provided with a first air door, the first air door may be an electric air door, a pneumatic air door, or the like, which is not limited in this embodiment, for example, if the electric air door 7 is adopted, please refer to fig. 5, then the electric air door 7 includes an electric driving device 71 and a sliding piece 73, the electric driving device 71 is provided with a telescopic push rod 72, the sliding piece 73 is connected with the push rod 72, and the electric driving device 71 drives the sliding piece 73 to open or close the room fresh air opening 411 through the push rod 72.
This embodiment is preferable in that the room fresh air opening 411 is opened above the door 413, and therefore, the electrically operated damper 7 is provided in the interlayer of the door 413.
In this embodiment, the arrangement position of the toilet vent 421 is not limited, the toilet vent 421 may be arranged on the wall of the toilet 42, the door head of the toilet 42 door, or the door leaf of the toilet 42 door, and in this embodiment, the toilet vent 421 is preferably arranged below the door leaf of the toilet 42 door.
The toilet ventilation opening 421 may be provided with a second air door, or may not be provided with a second air door, and may be set according to actual use requirements. If the toilet vent 421 is provided with a second air door, the second air door may be an electric air door, a pneumatic air door, etc., which is not limited in this embodiment, for example, the electric air door of the first air door may be adopted.
The both sides of bathroom vent 421 are equipped with the second grid, the second grid includes a plurality of from top to bottom parallel arrangement's second bars in proper order, the second bars from top to bottom inclines to the outside by the inboard.
In this embodiment, the relay fan 5 and the air return opening 31 of the toilet air return duct 3 are both disposed in the ceiling, and the air suction opening of the relay fan 5 and the air return opening 31 of the toilet air return duct 3 are both disposed downward. When the fresh air in the first room is replaced, the first air door and the second air door are both opened, the relay fan 5 operates, the return air inlet 31 of the return air pipe 3 in the toilet sucks air, the fresh air in the public space enters the room body 1 from the fresh air inlet 411 in the room under the action of the relay fan 5, the fresh air which is injected into the room body 41 through the gravity slingshot of the relay fan 5 is sucked by secondary negative pressure of the suction inlet of the relay fan 5, dirty air in the room body 41 is driven to flow back through the bottom space of the room body 41 at a low position, then flows into the toilet 42 through the toilet vent 421 at the bottom of the toilet 42, and finally is discharged out through the return air pipe 3 at the top of the toilet 42.
In this embodiment, the public space 7 may be a living room, a restaurant, a corridor, a walkway, or the like, or a living room with a balcony, a restaurant, a corridor, a walkway, or the like; the first room and the second room can be a living room, a bedroom, a study room, a kitchen, a toilet, a storage room, a dining room and the like, and can also be a living room, a bedroom, a study room, a kitchen, a toilet, a storage room, a dining room and the like with a balcony.
Example 2
In this embodiment, on the basis of embodiment 1, a room fan coil 6 is added in the first room, referring to fig. 6 to 10, the room fan coil 6 is disposed in the room body 41 and is located on the outer wall 412 of the room body 41 or at a position close to the outer wall 412, an air outlet of the room fan coil 6 faces a deep part of the room body 41, the outer wall 412 is located at a shallow part of the room body 41, and the deep part of the room body 41 is opposite to the outer wall 412.
The exterior wall 412 of the present embodiment includes at least one of a solid exterior wall, a hollow exterior wall, a foam exterior wall, and an exterior wall provided with an exterior window. When the fresh air in the first room is replaced and operated, the fan coil 6 in the room does not operate; when the first room internal circulation is executed, the room fan coil 6 will reverse the room temperature field constructed when the traditional fan coil is arranged close to the inner wall, forming a brand new room temperature field spatial structure.
When the room fan coil 6 is internally circulated, under the action of a fan of the room fan coil 6, air in the room body 1 enters the room fan coil 6 from an air suction port of the room fan coil 6 and is discharged into the room body 1 through an air outlet of the room fan coil 6.
The fan coil 6 in the room is arranged adjacent to the outer wall and is analyzed and judged based on the following building physics: the energy consumption of air conditioning and heating in summer and winter is the main body of building energy consumption; the heating energy consumption of the air conditioner is essentially caused by heat exchange inside and outside the building; the heat exchange inside and outside the building relates to 3 heat exchange stages of indoor side air convection, outer wall heat conduction and outdoor side air convection, so that the calculation and control of the heat exchange inside and outside the building are very complicated.
Heat exchange power Q between ambient atmosphere and indoor space 1 The total heat transfer coefficient K inside and outside the outer wall is multiplied by the outer wall surface area S multiplied by the difference between the heat transfer difference delta T inside and outside the wall is multiplied by K multiplied by S multiplied by delta T;
the calculation formula of the total heat transfer coefficient K inside and outside the wall body is as follows:
wherein alpha is 1 Is the heat transfer coefficient of the air outside the wall, alpha 2 The heat transfer coefficient of the air at the inner side of the wall body, b the thickness of the wall body and lambda the heat transfer coefficient of the wall body.
Referring to fig. 11, the middle part in fig. 11 is an outer wall, the left side is an external environment, and the right side is an indoor space, when the ambient atmospheric temperature is higher than the indoor temperature, the outdoor heat is transferred to the indoor space along the three-section relay in the heat flow direction in fig. 11:
1. external hot air convection heat transfer area of outer wall body
The first section is a hot air convection heat transfer area outside the outer wall, and the convection heat transfer coefficient is alpha 1 The hot air forms a laminar bottom layer F near the wall surface of the outer wall 1 -F 1 And the hot air flows through the convection to the laminar bottom layer F 1 -F 1 And (4) heat leakage.
2. External wall heat conduction
The second section is wall heat conduction, the thickness of the wall is b, the heat conduction coefficient is lambda, and the external hot air laminar flow bottom layer F is conducted in a heat conduction mode 1 -F 1 The heat is conducted to the indoor cold air laminar bottom layer F through the wall body 2 -F 2 ；
3. Indoor cold air convection heat transfer area
The third section is an indoor cold air convection area with a convection heat transfer coefficient of alpha 2 The cold air forms a laminar bottom layer F near the inner surface of the outer wall body 2 -F 2 Laminar bottom layer F 2 -F 2 The heat leakage is transferred to the room deep space by convection of cold air in the room.
When the ambient atmospheric temperature is lower than the indoor temperature, the heat is transmitted from the indoor to the outdoor in a three-section type relay manner along the heat flow direction, the principle of heat exchange between the indoor and the outdoor of the building is the same, and the heat flow direction is opposite:
1. indoor hot air convection heat transfer area
The first section is an indoor hot air convection area and a convection heat transfer systemNumber alpha 2 The hot air forms a laminar bottom layer F near the inner surface of the outer wall body 2 -F 2 Indoor hot air flows through convection to the laminar bottom layer F 2 -F 2 And (4) heat leakage.
2. External wall heat conduction
The second section is wall heat conduction, the wall thickness is b, the heat conduction coefficient is lambda, and the indoor hot air laminar flow bottom layer F of the inner wall surface of the wall is conducted by heat conduction 2 -F 2 The heat is conducted to the cold air laminar bottom layer F on the outer wall surface 1 -F 1 ；
3. External cold air convection heat transfer area of outer wall body
The third section is an external cold air convection heat transfer area of the external wall, and the convection heat transfer coefficient is alpha 1 The cold air forms a laminar bottom layer F near the wall surface of the outer wall 1 -F 1 And a laminar bottom layer F 1 -F 1 The heat leakage from the room is transferred to a remote place by the convection of cold air.
Although the three-stage heat leakage process from the outdoor hot air in summer to the indoor through the outer wall or from the indoor hot air in winter to the outdoor through the outer wall is complicated, in a formula of Q (heat exchange strength) K (total heat transfer coefficient) x S (outer wall area) x Δ T (internal and external temperature difference), only the component factors and the interrelation of K are complicated, and the mathematical structure complexity and the calculation complexity of K do not change the simple mathematical relationship that "the heat exchange strength Q is in direct proportion to the outer wall area S and the external and internal temperature difference Δ T of the outer wall".
In the embodiment, by changing the positioning method of the room fan coil 6, the traditional arrangement mode of the deep part of the room fan coil 6 relative to the outer wall 412 (the position of the outer wall 412 in the first room 4 is a shallow part of the room, and the traditional arrangement mode of the room fan coil 6 is a position far away from the outer wall 412 of the room) is innovatively arranged on the outer wall 412 or a position close to the outer wall 412, so that the novel structural relationship between an air conditioner and a building is innovatively arranged, the indoor temperature field distribution is changed, the difference delta T between the inner temperature and the outer temperature of the outer wall is reduced, and therefore the indoor and outdoor heat exchange strength Q and the building energy consumption are reduced.
This embodiment takes a standard hotel room as an example.
In the traditional air conditioner installation project, the room fan coil 6 is arranged at the deep part of the room relative to the outer wall 412, by taking the example of the cooling operation under the standard working condition of the air conditioner in summer, the room fan coil 6 arranged at the deep part of the room sucks room return air at about 27 ℃ for cooling and dehumidifying, then the cold air flow at about 14 ℃ after cooling and dehumidifying passes through the upper space of the room and blows to the outer wall 412, and is blocked and reflected by the outer wall 412, and the cold air flow flows back to the lower part of the room fan coil 6 at the deep part of the room from the middle lower space of the room and is sucked again by the room fan coil 6 for cooling and dehumidifying to start a new cycle; in the internal circulation process, the process of blowing out and returning the cool air flow from the room fan coil 6 is a process of gradually expanding the cross section of the air flow, gradually attenuating the speed of the air flow, and gradually increasing the temperature, and the temperature increase of the air flow mainly occurs in the process of returning the air flow from the outer wall 412 to the suction port of the room fan coil 6, as shown in fig. 12.
If the ambient temperature is 32 ℃, the outlet air temperature of the traditional deeply-arranged room fan coil 6 during the refrigerating operation is 14 ℃, the temperature of the vertical sinking air flow blown to the inner side of the outer wall 412 is near 19 ℃, the return air is about 27 ℃, and the indoor and outdoor temperature difference of the outer wall 412 is 32-19 or 13 ℃, the indoor heat Q is leaked into the outdoor environment through the outer wall 1 ＝K×S×⊿T 1 ＝13K×S。
In the embodiment, the room fan coil 6 arranged at the traditional deep part is innovatively arranged at a position close to the outer wall 412, a novel structural relationship between the air conditioner and the building is created, the indoor temperature field is changed along with the change of the indoor temperature field, and the difference Δ T between the inside and the outside of the outer wall is changed along with the change of the indoor and the outdoor heat exchange strength Q and the building energy consumption, as shown in fig. 13.
The same ambient temperature is 32 ℃, the same room structure is adopted, in the embodiment, the outlet air temperature of the room fan coil 6 arranged near the outer wall 412 during the refrigerating operation is 14 ℃, the temperature of the air flow which is blown to the deep part of the room and then vertically sinks is about 19 ℃, the return air temperature of the outer wall 412 is 25 ℃, the return air inlet 31 temperature of the room fan coil 6 is 27 ℃, the indoor and outdoor temperature difference of the outer wall 412 is 32-25-7 ℃, and then the outdoor environment leaks indoor heat Q through the outer wall 2 ＝K×S×⊿T 2 7K × S; in relation to the traditional air-conditioning building structure, the fan coil deep part of the roomSetting up the scene comparison, the heat leaking into the room is reduced (Q) 1 -Q 2 )/Q 1 ＝(13-7)/13＝46％。
The same architectural physics analysis comparison is applicable to the heating operation of the room fan coil in winter:
if the ambient temperature is 5 ℃, the outlet air temperature of the traditional deeply-arranged room fan coil during heating operation is 45 ℃, the temperature of the vertical sinking air flow blown to the inner side of the outer wall 412 is near 35 ℃, the return air is about 21 ℃, and the indoor and outdoor temperature difference of the outer wall 412 is 35-5-30 ℃, the indoor air leaks to the outdoor heat Q through the outer wall 1 ＝K×S×⊿T 1 ＝30K×S。
Under the same environment temperature of 5 ℃ and the same room structure, in the embodiment, the outlet air temperature of the room fan coil 6 arranged near the outer wall 412 is also 45 ℃ during heating operation, the temperature of the air flow which is blown to the deep part of the room and then vertically sinks is also about 35 ℃, the return air temperature of the outer wall 412 is 23 ℃, the return air temperature of the room fan coil 6 is 21 ℃, the indoor and outdoor temperature difference of the outer wall 412 is 23-5-18 ℃, and then the indoor air leaks to the outdoor environment heat Q through the outer wall 2 ＝K×S×⊿T 2 18K × S; compared with the scene of arrangement of the deep part of the fan coil of the room under the structural relation of the traditional air-conditioning building, the heat quantity leaked from the indoor to the outdoor environment is reduced (Q) 1 -Q 2 )/Q 1 ＝(30-18)/30＝40％。
The embodiment starts from the research and analysis of building physics, and through changing the method for positioning the room fan coil, the traditional room fan coil 6 deep room arrangement mode relative to the external wall 412 is innovatively arranged at the position of the external wall 412 or close to the external wall 412, the novel structural relationship between an air conditioner and a building is innovatively arranged, the reverse phase change of a room air temperature field is promoted, the distribution of an indoor temperature field is reconstructed, the 'high inside and low outside' temperature field in summer of the room is converted into the 'high inside and low outside' temperature field, the 'high inside and low outside' temperature field in winter of the room is converted into the 'high inside and low outside' temperature field, and the difference delta T between the inside and the outside of the external wall is reduced, so that the indoor and outdoor heat exchange strength Q and the building energy consumption are reduced.
In this embodiment, the air outlet of the room fan coil 6 is provided with a plurality of horizontal guide plates for controlling the movement of the air outlet from side to side and a plurality of vertical guide plates for controlling the movement of the air outlet from top to bottom, and the horizontal guide plates and the vertical guide plates are defined according to the changing direction of the air flow guided by the guide plates.
In this embodiment, the relay fan 5, the air return opening 31 of the toilet air return duct 3, and the room fan coil are all disposed in the ceiling, and the air suction opening of the relay fan 5, the air return opening 31 of the toilet air return duct 3, and the air suction opening of the room fan coil are all disposed downward.
When a bidirectional flow full-room fresh air system with a toilet arranged in a room operates, a fresh air module 1, an air exhaust module 2, a relay fan 5, an electric air door of a room fresh air port 411 and an electric air door of a toilet vent 421 are synchronously started, the fresh air module 1 delivers fresh air to each room fresh air port 411 through a living room passageway, the air exhaust module 2 sucks dirty air in a first room 4 to generate primary negative pressure, the relay fan 5 operates an air suction port to generate lower secondary negative pressure, the primary negative pressure and the secondary negative pressure jointly push room fresh air flow to move, and the return air port driving the dirty air in the first room to flow into a toilet return air pipe 3 is conveyed to the outside through the air exhaust module 2:
firstly, the exhaust module 2 operates in each first room 4 to pump and exhaust sewage air to generate primary negative pressure, so as to pull fresh air in the public space 7 outside the first room 4 to pass through the room fresh air inlet 411 and flow into the room body 41 of the first room 4 under the guidance of a grid of the room fresh air inlet 411;
the new air flow entering the room body 41 of the first room 4 is sucked into the relay fan 5 under the secondary negative pressure pulling of the relay fan 5, the relay fan 5 plays the function of gravity slingshot, the introduced new air is pressurized and ejected, and the new air is guided downwards by a transverse guide plate and a longitudinal guide plate at the air outlet of the relay fan 5 and is ejected to the deep part of the room body 41 towards one side of the return air inlet of the return air pipe of the toilet;
the fresh air emitted to the deep part of the room body is driven to flow into a ventilation opening of the toilet;
fresh air flow is propelled, and dirty air is continuously compressed and driven to be conveyed to the outdoor through a toilet vent 421, an air return opening 31 of a toilet air return pipe 3 and an air exhaust module 2 in sequence, so that efficient non-blind-area room fresh air replacement is realized.
The bidirectional flow full-house fresh air system provided by the embodiment is arranged in a room and is based on the following judgment:
firstly, the relay fan 5 has the function of a gravitational slingshot for replacing fresh air in a room
The room fresh air replacement is an intermediate link and a key link of the whole house fresh air replacement; under the 'primary negative pressure' generated when the exhaust module 2 pumps and exhausts the sewage air in a room through the toilet return air pipe 3, the relay fan 5 generates deeper 'secondary negative pressure' at the air suction port when running; on the basis of secondary negative pressure, the gravity slingshot function of sucking fresh air by negative pressure of the relay fan 5 and boosting and ejecting the fresh air is developed, and a room fresh air replacement path is organized, so that the method is a technical key for realizing high efficiency and blind area-free cleaning of polluted air in a room;
secondly, optimizing the space position of the fan coil in the room can reduce the intensity of heat exchange between the inside and the outside of the room
When a room fan coil is subjected to internal circulation, an asymmetric temperature field is established in a room, the air outlet temperature of the room fan coil is lowest, the upper part temperature of the room is lower, the lower part temperature of the room is higher, and the air inlet temperature of the room fan coil is highest during refrigerating operation, the air outlet temperature of the room fan coil is highest, the upper part temperature of the room is higher, the lower part of the room is lower, and the air inlet temperature of the room fan coil is lowest during heating operation, and the spatial position of the room fan coil determines the spatial characteristic of the room temperature field and determines the internal and external heat exchange strength of the room; the position setting of the room fan coil is adjusted, the spatial structure relationship between the room fan coil and the room is optimized, the gravitational slingshot function of the room fan coil during fresh air replacement of the room is supported, the room temperature field structure can be changed, and the internal and external temperature difference of an outer wall body during refrigeration in summer and heating in winter is reduced, so that the internal and external heat exchange of the room is reduced, and the building energy consumption is reduced.
Example 3
In this embodiment, referring to fig. 14, a fresh air module 1 includes an air inlet boosting device 11, a header 12 and a fresh air fan coil 13, which are connected in sequence, the header 12 communicates the air inlet boosting device 11 and the fresh air fan coil 13, and the air inlet boosting device 11 communicates with the outside atmosphere; an air inlet fan is arranged in the air inlet boosting device 11; the fresh air fan coil 13 is arranged in the common space 7 or in a second room.
The header 12 is hollow structure, and if the header 12 can be formed by riveting with two end covers after being riveted by a 1.2-1.5 mm cold-rolled sheet or an aluminum plate through stamping, bending and riveting, of course, the embodiment is not limited to cold-rolled sheet aluminum plates, and the header can also be pipelines made of other materials. The header 12 is used for communicating the inlet air boosting device 11 with the fresh air fan coil 13, so that the header 12 is provided with a second air inlet and a second air outlet.
The air inlet boosting device 11 comprises a shell and an air inlet fan, the shell is provided with an air inlet I, an air outlet I and an air inlet channel communicated with the air inlet I and the air outlet I, and the air inlet fan is arranged in the air inlet channel; the first air inlet of the air inlet boosting device 11 is communicated with the outside atmosphere, the first air outlet of the air inlet boosting device 11 is communicated with the second air inlet of the header 12, and the second air outlet of the header 12 is communicated with the fresh air fan coil 13.
The fresh air fan coil 13, i.e. the fan coil in the room in a broad sense, may be a split type air pipe machine, or may be a fan coil or an indoor unit used as the terminal of the room of the household central air conditioner. The fresh air fan coil 13 belongs to the mature technology in the field, therefore, the invention does not specifically limit the structure of the fresh air fan coil 13. In this embodiment, the fresh air fan coil 13 includes the air return box and a fan coil body communicated with the air return box, the fan coil body includes a housing and a heat exchanger disposed in the housing, and two end ports of the housing are respectively communicated with the air return box and the public space 7 or the second room. And a fan assembly is arranged in the air return box, a third air inlet and a return air inlet are formed in the air return box, the third air inlet is communicated with the second air outlet of the header 12, and the return air inlet is communicated with the public space 7 or the second room. When the fresh air module 1 runs, outdoor fresh air is sent into the header 12 after being boosted by the air inlet fan of the air inlet boosting device 11, is sucked into the air return box through the air inlet III after being decelerated and noise reduced and vortex eliminated in the header 12, is then sent into a public space 7 or a second room after being subjected to cooling and dehumidifying or heating and warming air conditioning treatment by the fan coil body.
In this embodiment, the intake air boosting device 11 is installed on the ceiling, and the room fresh air port is downward. A filter layer is further arranged in the air inlet channel. In this embodiment, for example, the air inlet boosting device 11 is disposed in a balcony, and the fresh air fan coil 13 is disposed in a living room, an air outlet of the air inlet boosting device 11 is connected to an air inlet of the header 12 through at least one air outlet pipe, and the air outlet pipe passes through a beam or a shear wall. In order not to damage the integrity and strength of the beam or the shear wall, the air outlet of the air inlet pressure boosting device 11 generally passes through the beam or the shear wall through two or more air outlet pipes, that is, the air inlet pressure boosting device 11 is provided with two or more air outlets, and each air outlet is connected with one air outlet pipe. During operation, outdoor fresh air is absorbed at the low position of the air inlet boosting device 11, and is filtered and boosted and then is conveyed to the header 12.
The header 12 has the function of opening and closing as a fresh air channel, the air inlet two of the header is communicated with the air outlet one of the air inlet boosting device 11, and the air outlet two of the header is communicated with the air return box of the fresh air fan coil 13. In order to prevent the fresh air flow from impacting and even disturbing the dynamic balance of the fan impeller (the fan assembly in the return box of the fresh air fan coil 13 comprises two fans, and the impellers of the two fans are coaxially arranged on two sides of the same motor) in the return box of the fresh air fan coil 13 in a high-speed jet flow mode, the header 12 eliminates vortex for the fresh air from the inlet air boosting device 11, and reduces speed and noise, so that the fresh air flows into the return box of the fresh air fan coil 13 in a low-speed laminar flow mode less than or equal to 3 m/s. The header 12 is disposed horizontally, the present embodiment does not limit the shape of the air channel of the header 12, and the header 12 is generally designed to have a rectangular cross section. In this embodiment, the header 12 is of a long strip structure, so the air duct in the header 12 is arranged along the length direction of the header 12, and the second air inlet and the second air outlet of the header 12, which are communicated with the air duct in the header 12, are arranged in the length direction of the header 12, and are located at two sides of the header 12 and are arranged in a staggered manner.
When the fresh air fan coil 13 is in operation, the internal circulation of the air conditioner can be executed (in this embodiment, when the fresh air fan coil 13 executes the internal circulation, the air inlet and pressure boosting device 11 is closed), and the air conditioning treatment of fresh air temperature reduction and dehumidification (heating and temperature rise) can also be executed; the return air box of the fresh air fan coil 13 is communicated with the indoor space below the header 12 and the fresh air fan coil 13, and the air outlet of the fan coil body is directed to the indoor space in three directions.
When the fresh air module 1 runs, an air inlet fan in an air inlet boosting device 11 and a fan in a fresh air fan coil 13 run simultaneously, and the air inlet boosting device 11 sucks outdoor fresh air, filters and boosts the air and sends the air to a header 12; the fresh air flow eliminates vortex in the header 12, decelerates and reduces noise, and flows into the return box of the fresh air fan coil 13 in a low-speed laminar flow state less than or equal to 3 m/s; the low-speed fresh air flow flowing into the air return box is boosted and accelerated again by the fresh air fan coil 13, and then is sent into the public space 7 or a second room from the air outlet III of the fan coil body after the air conditioning treatment of temperature reduction, dehumidification or heating and temperature rise of the fan coil body.
In this embodiment, in order to effectively realize the above-mentioned "fresh air flow speed reduction and noise reduction" function of the header, the turbulent flow is changed into laminar flow ", the air distribution hole plate 121 is arranged in the inner cavity of the header 12, the air distribution hole plate 121 is formed by densely distributing micropores on a plate, and the holes perform throttling, speed reduction and homogenization on the high-speed fresh air flow. The shape of the air distribution hole plate 121 is not particularly limited in this embodiment, and may be a flat plate, a folded plate, or a curved plate. In order to improve the throttling, decelerating and homogenizing effects of the air distribution hole plate 121, the present embodiment performs the wave-shaped bending on the flat plate to increase the area of the air distribution hole plate 121 and the number of the ventilation micro holes.
Example 4
The present embodiment is further improved on the basis of the above-described embodiments. In this embodiment, referring to fig. 6, the exhaust module 2 includes a central air duct 24 and an exhaust blower 22, and the return air ducts 3 of the respective rooms are connected to the central air duct 24; the central air duct 24 is connected with the air suction opening of the exhaust fan 22 through at least one rear end air duct 23, and the air outlet of the exhaust fan 22 is communicated with the outside.
In this embodiment, the central air duct 24 is laid flat (not bent, not curled) above the room group, the diameter of the central air duct 24 is not less than that of each toilet return air duct 3, and the diameter of the rear air duct 23 is not greater than that of the central air duct 24.
In this embodiment, there is no limitation on where the central air duct 24 and the exhaust fan 22 are specifically disposed in a room group in a building, for example, the central air duct 24 and the exhaust fan 22 may be disposed in a kitchen, a balcony, a toilet, a bedroom, a storeroom, a living room, a passageway, etc., taking the case where the exhaust fan 22 is disposed in the kitchen and the central air duct 24 is disposed in the passageway, since a cross beam is disposed between the kitchen and the passageway, the rear end air duct 23 communicating the central air duct 24 and the exhaust fan 22 should pass through the cross beam, if only one rear end air duct 23 is disposed between the exhaust fan 22 and the central air duct 24, the diameter of the rear end air duct 23 is relatively large, and a hole formed in the corresponding cross beam for the rear end air duct 23 to pass through is relatively large, and the integrity and the strength of the cross beam is damaged. Therefore, in this embodiment, it is preferable that the exhaust fan 22 and the central air duct 24 are connected by two or more thin rear-end air ducts 23 with smaller diameters, and correspondingly, the cross beam is provided with a plurality of small holes adapted to the plurality of thin rear-end air ducts 23, and the plurality of thin rear-end air ducts 23 pass through the plurality of small holes respectively. Specifically, the exhaust fan 22 is provided with two or more air inlets, and each air inlet is connected with the central air duct 24 through a rear end air duct 23.
If the exhaust fan 22 is installed on the balcony, the balcony is connected to the outside, so that the exhaust outlet of the exhaust fan 22 does not need to be connected to the outside through the exhaust duct. If the exhaust fan 22 is installed in a room with an outer wall, an exhaust outlet of the exhaust fan 22 communicates with the outside through the exhaust duct 21.
In this embodiment, the number of the exhaust pipes 21 is not limited, and may be one or more. Since the exhaust fan 22 is installed inside the building and the exhaust duct 21 passes through the interior of the building to the exterior of the building, the exhaust duct 21 passes through the exterior wall of the building. If the air outlet of the air exhaust fan 22 is communicated with the outside only through one air exhaust pipe 21, a main air outlet with a larger caliber for the air exhaust pipe 21 to pass through needs to be arranged on the outer wall of the building, and then the integrity and the strength of the outer wall can be damaged. Therefore, in the present embodiment, it is preferable that a plurality of exhaust ducts 21 are provided, that is, two or more total air outlets are provided on the exhaust fan 22, and each total air outlet is provided with an exhaust duct 21 communicated with the outside.
Each toilet return air duct 3 can be distributed at any position of the central air duct 24, preferably, the rear end air duct 23 is connected with the waist part of the central air duct 24; the air return ducts 3 of the toilets are distributed at two ends of the central air duct 24, and two ends of the central air duct 24, namely two ends of the central air duct 24, are respectively connected to the pipe sections between the waist parts, namely two sides of the waist part of the central air duct 24.
The whole-house fresh air system provided by the embodiment is an integrated innovation on the basis that the room fan coil is arranged adjacent to the outer wall, and has the advantages of very distinct technical and economic comparison:
1. extremely optimized whole-house fresh air replacement path
The whole-house fresh air system adopts a whole-house bidirectional flow fresh air conditioning system, a plurality of small rooms in a sleeve rotating towards a pocket are arranged, under the premise that only one air pipe is arranged in the sleeve, no barrier is arranged behind the front door of a door of the chamber and the resource of an air flow channel is endowed, ductless air supply is implemented to directly support fresh air sent out by a balcony fresh air module to the door heads of all the rooms through a living room passageway, the fresh air is sucked by a relay fan in the room through an electric air door opened on the door head under secondary negative pressure, and then is shot into the rooms by a relay fan 'gravitational catapult', dirty air in the rooms is driven to flow into a return air inlet of a toilet return air pipe, enter a negative pressure central air pipe, and finally is sucked by an exhaust fan to be boosted and discharged to the outside.
In the embodiment, a whole-house bidirectional-flow fresh air conditioning system is adopted, and an environment fresh air → a fresh air module → a living room passageway for replacing an air supply pipe → fresh air ports of all rooms → a relay fan → a toilet air return pipe → a central air pipe → an air exhaust fan → environment atmosphere are linked to form an extremely optimized fresh air replacement path, and the fresh air replacement path is linked to form a complete air supply and exhaust bidirectional-flow air flow organization form comprising three stages of supply, replacement and exhaust. In spring and autumn with proper temperature and humidity of the environmental air cleanliness, short circuit can be implemented on the fresh air module, fresh air passes through the living room from the balcony screen door and directly enters the passageway and then turns into the room, and the process is simplified.
A whole-house bidirectional flow fresh air conditioning system is characterized in that a room air path consisting of a room fresh air port → a relay fan → a toilet air return pipe of each room is connected in parallel on a house ventilation main path which mainly comprises three stages of feeding, replacement and discharging and is mainly combined with feeding and discharging, so that the old and difficult problem of short circuit of fresh air in the room is solved; all rooms in the set comprise toilets, and the rooms in the set all enjoy 'flood irrigation' type fresh air replacement, and the whole fresh air replacement has no blind area and no dead angle.
2. Fully compatible fresh air replacement power
The whole-house bidirectional-flow fresh air conditioning integrated system of the embodiment is based on a current household central air conditioning system, and exploits the potential energy of a room fan coil to serve as the whole-house total fresh air module power and the room fresh air relay power.
The combined fresh air module arranged in the living room implements compatibility twice: because the fresh air fan coil is installed close to the balcony door instead of the traditional deep part of the living room, the structural reversal of the temperature field of the living room realizes 'transition energy saving' and brings the reduction of the heat load of the living room, 2 fresh air fan coils (originally split into 2 for reducing noise) of the traditional living room are combined into 1, then the air conditioning treatment of the fresh air sent by the balcony air inlet boosting device is combined with the circulation function in the living room again, and 'same-machine air conditioning' is implemented; the combined fresh air module adopts a large-size fan coil (FP102 and above) or a FP102 heat exchanger and a FP85 fan to be recombined to form a fresh air fan coil, which is just matched with the large-load energy requirement of fresh air conditioning treatment in summer and winter; the air inlet booster device fan is connected with the fresh air fan coil fan in series, the whole-process power dispersion of fresh air filtration and air conditioning treatment is realized, the working pressure difference of the fan coil is effectively reduced, and the noise of a living room is inhibited. After the fresh air module and the fan coil are subjected to 2 times of functional recombination and 1 time of spatial recombination to form the combined fresh air module, the fresh air conditioning equipment, the installation cost and the operation cost of the living room are reduced compared with those of the traditional double-fan coil.
The room fresh air system sets the relay fan as the relay power of room fresh air replacement on the premise of not increasing an independent air supply pipeline and power equipment: a room fresh air electric air door is arranged by depending on a room door leaf (or above a door frame), the secondary negative pressure function of an air suction opening when a relay fan operates is developed on the basis of room primary negative pressure generated by a whole room exhaust system for pumping and exhausting room dirty air, the air suction opening of the relay fan becomes the lowest air pressure area of a room, the maximum pressure difference is generated inside and outside the door leaf electric air door to pull aisle fresh air to flow into the room, the aisle fresh air is shot to the outer wall of the room by the relay fan, the aisle fresh air is blocked by the outer wall to return to the main space of the room, and the dirty air is driven to flow into a fan air return opening, so that the problem of room fresh air short circuit is solved.
3. Perfect fresh air replacement efficiency
When the whole-house bidirectional-flow fresh air conditioning system executes fresh air replacement, introduced outdoor fresh air is firstly filtered in an air inlet and pressure rising device and then enters a large fresh air fan coil (FP102 or more) of a living room for air conditioning modulation, wherein the air conditioning modulation comprises cooling and dehumidifying in summer and heating and warming in winter, and the introduced outdoor fresh air becomes high-quality fresh air with the freshness, cleanliness and temperature and humidity reaching standards and is then sent to a passageway of the living room in a set to directly reach the door heads of all rooms; when the fresh air runs, the air supply quantity of the balcony air inlet boosting device is more than or equal to the low-speed running air quantity of the fresh air fan coil pipe in the living room, the circulating air quantity in the fresh air fan coil pipe in the living room is reduced to zero, the balcony fresh air and the dirty air in the living room are not mixed, the fresh air blown out by the fresh air fan coil pipe is propelled to the main space of the living room and a connecting passageway in a laminar flow mode, and the dirty air in the passageway of the living room is driven to be discharged through an air return port of a return air pipe of a public toilet; the passage of the living room has large circulation section, low flow velocity and small fresh air flow resistance, thereby reducing the energy consumption of fresh air transportation;
when the room fresh air is replaced, in order to reduce the mixing of the room fresh air and the dirty air and reduce the air age of the room, the staggered-time fresh air replacement of the sub-rooms is implemented to increase the air passing amount of the room in a fresh air replacement state, so that the air passing amount is close to the low-speed gear operation air amount of the fan coil of the room, the partial internal circulation air amount possibly existing in the relay fan during the room fresh air replacement is reduced, and the room fresh air replacement efficiency is improved.
The central air pipe exhaust system is arranged above the passageway, collects the dirty air of the return air pipes of the toilets from two ends, flows to the waist air outlet and then flows through the 2 small-diameter beam-penetrating air pipes to be delivered to the exhaust fan; the wind paths are connected with the wind paths in a networking manner, the sectional area of the wind pipes is enlarged, the flow speed is reduced, the resistance is reduced, and the air exhaust energy consumption and the noise are greatly reduced.
In the embodiment, the energy consumption of full-house bidirectional flow fresh air replacement adopts a three-stage link conveying mode of ' fresh air positive pressure feeding + fan coil gravitational catapult + dirty air negative pressure pumping and discharging ', and according to ' 1 day, 4 times of fresh air replacement, 45min at each time and 400m of ventilation quantity at each time of a large-dwelling house 3 And performing measurement and calculation by comprehensively scanning and replacing once: the fresh air module and the exhaust module adopt an outer rotor centrifugal fan YWF-B2S-220-065AB00, 540m 3 H, power 80 w; the fan coil pipes of the living room and the room are respectively FP102 and FP51, and the fresh air replacement air quantity is respectively selected to be 540m and 270m 3 The motor power is 54 and 98w respectively, and 2 room fan coils are operated simultaneously when the fresh air in the set is replaced in a partitioning manner; the linked three-stage pressurized transmission of 'fresh air positive pressure feeding + room fan coil relay power + dirty air negative pressure pumping' is that the total power of a fan is 2 x 80+2 x 54+1 x 98 ═ 366w, the total time is 3 hours after 4 times of operation in the whole day, the average value of 24 hours in the day and the night is 45.75w, and the fresh air replacement power consumption in the whole day is 1.1kwh (excluding the operation energy consumption of an air conditioner host). Compared with the air-conditioning (heating) load of a whole set of dwelling houses at about 15kw and the 5kw electric power load of an air-conditioning (heat pump) host in winter and summer, the energy consumption average value of the whole-house bidirectional-flow fresh air replacement is 2 orders of magnitude lower than that of the whole-house bidirectional-flow fresh air replacement, and the energy consumption is greatly lower than that of the building reduced by 'transition energy conservation' of a fan coil in a living room and can be ignored.
4. Ultra-large energy-saving building
The whole room two-way flow fresh air conditioning system of this embodiment has continued all functions of air conditioner to with traditional room fan coil room deep setting mode, the innovation sets up the position than adjacent outer wall, and the novel structural relation of innovation air conditioner and building changes the indoor temperature field distribution, reduces the inside and outside difference of temperature delta T of outer wall, thereby reduces indoor outer heat exchange strength Q and building energy consumption.
Because, the heating energy consumption of the air conditioner is essentially originated from the heat exchange inside and outside the building; the heat exchange inside and outside the building relates to 3 heat exchange stages of indoor side air convection, outer wall heat conduction and outdoor side air convection, so that the calculation and control of the heat exchange inside and outside the building are very complicated; however, in summer and winter, the calculation and control of the heat exchange between the inside and the outside of the building are complex, in a formula of Q (heat exchange strength) ═ K (total heat transfer coefficient) × S (outer wall area) × Δ T (inside-outside temperature difference), only the component factors and the interrelation of K are complex, and the structural complexity and the calculation complexity of K do not change the simple mathematical relationship that the heat exchange strength Q is in direct proportion to the outer wall area S and the inside-outside temperature difference Δ T of the outer wall.
In the traditional air conditioner installation project, a room fan coil is usually arranged at the deep part of a room relative to an outer wall, by taking the example of cooling operation under the standard working condition of an air conditioner in summer, the room fan coil arranged at the deep part of the room sucks room return air at about 27 ℃ to cool and dehumidify, then cold air flow at about 14 ℃ after cooling and dehumidifying passes through the upper space of the room and blows to the outer wall, and the cold air flow is blocked and reflected by the outer wall, flows back to the lower part of the room fan coil at the deep part of the room from the middle lower space of the room, is sucked again by the room fan coil to cool and dehumidify, and starts a new cycle of circulation; in the internal circulation process of the air conditioner, the process of blowing out and refluxing the cold air flow of the room fan coil is a process of gradually enlarging the air flow section, gradually attenuating the air flow speed and gradually increasing the temperature, and the temperature increase of the air flow mainly occurs in the process of refluxing the air flow from the outer wall to the suction inlet of the room fan coil.
If the ambient temperature is 32 ℃, the air outlet temperature of a traditional deep-arranged room fan coil during the refrigerating operation is 14 ℃, the temperature of air blown to the inner side of an outer wall and then vertically sinking is near 19 ℃, the temperature of return air is about 27 ℃, the indoor and outdoor temperature difference at the outer wall is 32-19 ═ 13 ℃, and then the indoor heat Q1 ═ KxS × (delta) T1 ═ 13 KxS is leaked from the outdoor environment through the outer wall.
The room fan coil innovation setting that this embodiment set up traditional deep is than the position of adjacent outer wall, creates the novel structural relation of air conditioner and building, and the indoor temperature field changes thereupon, and the inside and outside difference of temperature delta T changes thereupon in the outer wall to indoor outer heat exchange intensity Q and building energy consumption change thereupon.
The same environment temperature is 32 ℃, the same room structure is adopted, according to the embodiment, the air outlet temperature of a room fan coil arranged adjacent to an outer wall in the cooling operation is 14 ℃, the temperature of air flow blowing to the deep part of a room and then vertically sinking is near 19 ℃, the return air temperature of the outer wall is 25 ℃, the temperature of a fresh air inlet of the room fan coil is 27 ℃, the indoor and outdoor temperature difference of the outer wall is 32-25-7 ℃, and then the indoor heat Q2 leaking into the outdoor environment through the outer wall is KxS x T2-7 KxS; compared with the scene of arrangement at the deep part of the fan coil of the room under the structural relationship of the traditional air-conditioning building, the reduction range of the heat leaked into the room (Q1-Q2)/Q1 is (13-7)/13 is 46%.
5. Extreme performance-price ratio
If the bidirectional pipeline bidirectional flow fresh air standard of a public building is executed, the floor height of the house needs to be increased by 300mm to 3300mm to solve the problem of air supply and exhaust 2 sleeve pipeline space interference, the building area of the building is reduced by 10 percent, the loss of real estate development projects is directly caused, and the building has an intolerable weight for real estate enterprises; meanwhile, each house is additionally provided with 2 sets of pipeline pipe valves for air supply and exhaust, 1 fresh air module and 1 exhaust module, the equipment cost is 5080 yuan (2 sets of pipelines are multiplied by 1000 yuan/each set of pipelines, 12 air door air valves are multiplied by 140 yuan/one plus central control large screen 800 yuan + fresh air module 800 yuan + exhaust module 800 yuan), the installation cost is 2140 yuan (50% of the equipment cost of 2 sets of pipelines, 12 air door air valves, fresh air modules and exhaust modules), and the total amount is 7220 yuan.
The embodiment adopts a full-house bidirectional flow fresh air conditioning system, and is innovated based on 'transition energy saving', 'same-machine air conditioning', 'ductless air supply', 'gravitational slingshot' and 'central air duct air exhaust', so that the cost performance is extremely low: on the basis of a 130 square meter house type structure and a house type central air conditioning system, only 6 electric air doors of a fresh air opening of a room, 5 electric air valves of a return air pipe and 1 set of air exhaust pipelines are added, the equipment cost is increased by 3400 yuan (11 air door air valves multiplied by 140 yuan/800 yuan + 800 yuan of a central control large screen + 1000 yuan of an air exhaust fan air pipe), the equipment cost of the whole fresh air is increased by about 850 yuan (50% of the equipment cost of 5 electric air valves of the return air pipe and 1 set of air exhaust pipe fans), the equipment cost is increased by 4250 yuan in total, and a whole-house bidirectional flow fresh air conditioning system which has high quality and high efficiency and greatly saves space resources is obtained.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (17)
1. A bidirectional flow whole-house fresh air system with a toilet arranged in a room is used for a room group, wherein the room group comprises at least a first room with the toilet arranged therein and a public space communicated with the first room; the first room comprises a room body and a toilet communicated with the room body; its characterized in that, two-way flow whole house new trend system includes:
the fresh air module is arranged on the room group and used for sending outside fresh air into the public space;
the air exhaust module is arranged on the room group and used for sucking and exhausting the dirty air in the room group to the outside of the room group;
the room fresh air port is formed in the enclosing structure of the room body and used for sending fresh air of the public space into the room body;
the toilet ventilation opening is arranged on the enclosure structure of the toilet and used for discharging the dirty air in the room body into the toilet;
the toilet air return pipe is connected with the air exhaust module and used for exhausting the dirty air in the toilet out of the room group; the air return inlet of the toilet air return pipe is positioned in the toilet;
the relay fan is arranged in the room body, and the distance between the room fresh air port and the suction opening of the relay fan is smaller than the distance between the room fresh air port and the toilet ventilation opening;
when the first room fresh air replacement is operated, under the action of the relay fan, fresh air entering the room body from the room fresh air inlet enters the relay fan from the air suction port of the relay fan, is discharged from the air outlet of the relay fan at a high speed, so that air flowing and fresh air replacement in the room body are pushed, and dirty air in the room body enters the toilet from the toilet ventilation port and is discharged out of a room group through the toilet air return pipe and the air exhaust module in sequence.
2. The bi-directional flow full house fresh air system of claim 1, wherein the fresh air module is disposed in the public space for directly sending fresh air from outside into the public space.
3. The bi-directional flow full house fresh air system with toilets inside a room as claimed in claim 1, wherein said room group further includes a second room, said second room being in communication with said common space;
the fresh air module is arranged in the second room, and a room air outlet is formed in the enclosure structure of the second room; when the air conditioner runs, the fresh air module firstly sends outside fresh air into the second room, and then the fresh air is sent into the public space through the room air outlet.
4. The bi-directional flow whole house fresh air system with the toilet arranged in the room as claimed in claim 2 or 3, wherein the fresh air module comprises an air inlet pressure boosting device, a header and a fresh air fan coil which are connected in sequence, the header is communicated with the air inlet pressure boosting device and the fresh air fan coil, and the air inlet pressure boosting device is communicated with the outside atmosphere; an air inlet fan is arranged in the air inlet boosting device; the fresh air fan coil is arranged on the outer wall of the public space or the second room or a position close to the outer wall.
5. The bi-directional flow whole house fresh air system of claim 4, wherein the header is provided with an air distribution hole plate, and the air distribution hole plate is located between the air inlet and the air outlet of the header.
6. The bi-directional flow whole house fresh air system with a toilet in a room of claim 1, wherein the exhaust module comprises a central air duct and an exhaust fan, and the toilet return air duct is connected with the central air duct; the central air pipe is connected with the air suction port of the air exhaust fan through at least one rear end air pipe, and the air outlet of the air exhaust fan is communicated with the outside atmosphere.
7. The bi-directional flow whole house fresh air system in a room with a toilet according to claim 1, wherein a room fan coil is arranged on or near the outer wall in the room body, and when the room fan coil circulates in the room, air in the room body enters the room fan coil from the air suction port of the room fan coil and is discharged into the room body through the air outlet of the room fan coil under the action of a fan of the room fan coil.
8. The bi-directional flow whole house fresh air system as claimed in claim 7, wherein the outlet of the room fan coil is provided with a horizontal guide plate for controlling the air outlet direction to swing left and right and a vertical guide plate for controlling the air outlet direction to swing up and down.
9. A bi-directional flow whole house fresh air system with a toilet in a room as claimed in claim 1, wherein the room fresh air opening is provided on a wall of the room body, a door head of the door of the room body or a door leaf of the door of the room body.
10. A bi-directional flow full house fresh air system with a toilet in a room as claimed in claim 9, wherein the toilet vent is provided on a wall of the toilet, a door head of the toilet door or a door leaf of the toilet door.
11. A bi-directional flow whole room fresh air system with a toilet in a room as claimed in claim 11, wherein the room fresh air opening is provided at an upper portion of a door leaf of the room door of the room body, and the toilet ventilation opening is provided at a lower portion of the door leaf of the toilet door.
12. The bi-directional flow whole house fresh air system for the toilet inside a room as claimed in claim 1, wherein the room fresh air port is provided with a first air door.
13. The bi-directional flow full house fresh air system of claim 12, wherein the first damper is an electric damper, and comprises an electric driving device and a sliding piece, the electric driving device is provided with a telescopic push rod, the sliding piece is connected with the push rod, and the electric driving device drives the sliding piece to open or close the fresh air opening of the room through the push rod.
14. The bi-directional flow full house fresh air system of claim 1, wherein the two sides of the fresh air inlet of the room are provided with first grilles, the first grilles comprise a plurality of first grilles which are arranged in parallel from top to bottom, and the first grilles are inclined from inside to outside from top to bottom.
15. The bi-directional flow whole house fresh air system in a room with a toilet according to claim 1, wherein the toilet vent is provided with a second air door.
16. The bi-directional flow full house fresh air system of claim 1, wherein the two sides of the ventilation opening of the toilet are provided with second grilles, the second grilles comprise a plurality of second grilles which are arranged in parallel from top to bottom, and the second grilles are inclined from inside to outside from top to bottom.
17. The bi-directional flow whole house fresh air system with the toilet arranged in the room as claimed in claim 1, wherein the relay fan, the air return opening of the toilet air return duct and the room fan coil are all arranged in the ceiling, and the air suction opening of the relay fan, the air return opening of the toilet air return duct and the air suction opening of the room fan coil are all arranged downwards.
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| CN202210613129.4A CN115095942A (en) | 2022-05-31 | 2022-05-31 | Bidirectional flow full-house fresh air system with toilet in room |
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