A whole-house fresh air system integrating air supply and exhaust modules

Abstract

The present invention discloses an integrated whole-house fresh air system with air supply and exhaust modules, comprising: an air supply and exhaust module, which is arranged on a wall of a public space or one of the rooms; the air supply and exhaust module comprises an exhaust chamber and an air inlet chamber, the air inlet chamber connects the public space / room with the outside of a room group, and the exhaust chamber connects with the outside of the room group; branch air inlets are arranged on each room to realize the connection between each of the rooms and the public space; a main exhaust duct is connected with the exhaust chamber, and the main exhaust duct is also connected with each room through a return air duct; under the action of a first fan, outside fresh air directly enters the public space through the air inlet chamber or enters the public space through a room with an air inlet chamber; positive pressure is formed in the public space, so that fresh air enters each room through the branch air inlet, replaces the dirty air in the room, and then under the suction action of a second fan, the dirty air is discharged through the return air duct, the main exhaust duct, and the exhaust chamber.

Description

Technical Field

[0001] The present invention relates to the technical field of air exchange system design, and in particular to a whole-house fresh air system with integrated air supply and exhaust modules. Background Art

[0002] Thousands of years ago, humans walked out of caves and entered artificial spaces such as "houses". However, in houses, the breathing and excretion of humans and animals, the diffusion of gas and oil smoke during cooking, and the volatilization of benzene and aldehyde components in various artificial materials cause indoor air pollution, which seriously threatens the physical and mental health of residents. The introduction of fresh air into houses and the effect of fresh air replacement have become important issues for residential health.

[0003] In recent years, some real estate companies and owners have tried to use the method of arranging fan ducts, such as Figure 1 As shown, forcing fresh air from outside into the room and directing the dirty air from the room to the outside has achieved great results; Figure 1 In the figure, the hollow arrows and solid arrows represent the introduction of fresh air into the house and the exhaust of polluted air from the house, respectively. This is a two-way flow fresh air replacement solution.

[0004] However, the large-scale use of the two-way fresh air system of the supply and exhaust duct combination in the above buildings and houses has three problems:

[0005] First, the decoration is complicated and costly. These tortuous, dark and humid air conditioning ducts are not only complicated to install, but also need to be covered and decorated to improve the visual effect. In addition, the indoor ceiling needs to be installed to cover the inlet and outlet of the fresh air and return air ducts, making the fresh air system the highest item in the building decoration cost.

[0006] Second, new health problems arise. During the operation and shutdown of the fresh air system, a large amount of dust that cannot be removed accumulates in the air duct and in the decorative interlayer between the air duct and the covering air duct, breeding bacteria and mold, and providing a breeding ground for mosquitoes, flies, bedbugs, cockroaches and even rats. In particular, the dust, microorganisms, bedbug and cockroach feces accumulated in the air supply duct (fresh air duct) are blown into the indoor space with the fresh air, bringing new and serious indoor health and hygiene problems.

[0007] Third, the fresh air replacement effect is poor---such as Figure 2As shown, in the traditional fresh air system, the fresh air inlet and the dirty air outlet of each room are set on the suspended ceiling under the ceiling of the room. Although the design and construction pay attention to the staggered installation in the horizontal direction of the suspended ceiling, the fresh air inlet and the dirty air outlet cannot be staggered in the vertical direction, that is, the height direction; since the speed of the fresh air added by the fresh air inlet is usually around 2m / s, the downward dynamic pressure head is very small, a part of the fresh air flow does not sink deeply to participate in the fresh air replacement, but finds the path with the shortest distance and minimum resistance between the fresh air inlet and the dirty air outlet, and goes straight to the outlet along the suspended ceiling surface, causing the fresh air airflow to short-circuit, wasting fresh air resources, and the fresh air replacement effect is poor. Summary of the invention

[0008] Aiming at the three major problems of the traditional fresh air system in the background technology, namely, the complex decoration cost, the secondary pollution caused by the air supply pipe, and the poor fresh air replacement effect, the present invention provides a whole-house fresh air system integrating air supply and exhaust modules, which is applied to a room group, wherein the room group includes a plurality of rooms and a public space connected to each room; the characteristic of the whole-house fresh air system integrating air supply and exhaust modules is that it includes:

[0009] An air supply and exhaust module is arranged on the wall of the public space or one of the rooms; the air supply and exhaust module comprises an exhaust cavity and an air inlet cavity, the air inlet cavity is connected with the public space / the room and the outside of the room group, and the exhaust cavity is connected with the outside of the room group;

[0010] A separate air inlet is provided in each of the rooms to achieve the connection between each of the rooms and the public space;

[0011] A main exhaust duct is connected to the exhaust cavity, and the main exhaust duct is also connected to each of the rooms through the room return ducts;

[0012] Under the action of the first fan, fresh air from the outside enters the public space directly through the air inlet cavity or enters the public space through a room provided with an air inlet cavity; positive pressure is formed in the public space, so that fresh air enters each of the rooms through the branch air inlets, and replaces the dirty air in the room, and the dirty air is then discharged through the room return air duct, the main exhaust duct, and the exhaust cavity under the suction action of the second fan.

[0013] Preferably, an opening is provided on the wall of the public space or one of the rooms, and the air inlet cavity and the air exhaust cavity are provided together in the opening; wherein,

[0014] The air inlet cavity and the air exhaust cavity are both located on the outer wall of the public space or one of the rooms;

[0015] Alternatively, the air inlet cavity is located on an inner wall of the public space or one of the rooms, and the air exhaust cavity is located on an outer wall of the public space or one of the rooms.

[0016] Preferably, dampers are provided in both the air inlet cavity and the air exhaust cavity.

[0017] Preferably, a two-in-one air supply module is provided in the air inlet cavity and / or the branch air inlet, and the two-in-one air supply module includes a heat exchange channel, an air inlet channel and a return air channel;

[0018] One end of the air inlet channel is connected to the outside of the room group or to the branch air inlet, and the other end is connected to the heat exchange channel;

[0019] One end of the return air channel is connected to the room / the public space, and the other end is connected to the heat exchange channel;

[0020] A control damper is provided at the connection point between the air inlet channel and the heat exchange channel, and at the connection point between the air return channel and the heat exchange channel;

[0021] A heat exchanger is provided in the heat exchange channel, the first fan is arranged on one side of the heat exchanger, and the heat exchanger is also connected to a circulation unit for providing heat exchange medium therefor.

[0022] Preferably, the control damper comprises:

[0023] A fixed orifice plate having a plurality of sequentially arranged ventilation areas disposed thereon;

[0024] A sliding orifice plate, wherein the sliding orifice plate is overlapped with the fixed orifice plate, and air distribution ports are arranged at positions corresponding to the ventilation areas on the sliding orifice plate and the fixed orifice plate, and the air distribution ports can cover the ventilation areas;

[0025] The driving device is used to push the sliding orifice plate to move relative to the fixed orifice plate. During the relative movement, the overlapping part of each ventilation area and the air distribution port changes, thereby realizing the switching of the ventilation area and the adjustment of the air flow.

[0026] Preferably, the outlet of the heat exchange channel and the inlet of the return air channel are arranged vertically.

[0027] Preferably, the outlet of the heat exchange channel is composed of a circular arc-shaped air outlet surface and a vertical air outlet surface.

[0028] Preferably, the branch air inlet is arranged above the door frame of the room.

[0029] Preferably, the room has a vertically extending hollow wall column in the wall on one side close to the public space connected thereto, the hollow wall column directly constitutes the return air duct, one end of the hollow wall column close to the ground is connected to the room, and the other end is connected to the main exhaust duct.

[0030] Preferably, a fresh air pre-processing module for filtering the fresh air is also provided in the air inlet chamber.

[0031] Preferably, the circulation unit includes an external heat exchanger, a compressor, and a throttle valve, and the internal heat exchanger, the external heat exchanger, the throttle valve, and the compressor are cyclically connected to form a circulation channel for the circulation of heat exchange medium.

[0032] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0033] 1. Reduce the workload of opening holes in the exterior wall, installation, and the occupation of indoor space resources by fresh air system equipment

[0034] The present invention only opens one hole on the outer wall, and only sets one equipment platform outside the wall, and integrates the air supply module and the exhaust module of the whole-house fresh air system onto the platform, thereby reducing the workload of on-site installation and improving the visual effect of the building facade;

[0035] 2. Eliminate secondary pollution of air supply pipe

[0036] During the operation and shutdown of the traditional two-way flow residential fresh air system, a large amount of dust that cannot be removed accumulates in the supply and exhaust ducts and in the decorative interlayer between the ducts and the covering ducts, breeding bacteria and mold, and providing a breeding ground for mosquitoes, flies, bedbugs, cockroaches and even rats. In particular, the inner wall of the air supply duct (fresh air duct) is prone to condensation, and the attached wet dust becomes a culture medium for bacteria and microorganisms, generating new secondary pollution. The bacteria, microorganisms, bedbug and cockroach feces accumulated in the air supply duct are blown into the indoor space with the fresh air during fresh air replacement, bringing new serious secondary pollution problems.

[0037] The present invention uses a two-in-one air supply module on the upper part of the room door frame as a means of regulating the fresh air flow in the room, uses passages and rooms that need to replace fresh air as air ducts, cancels all fresh air supply pipes and corresponding concealing decorations of the traditional residential fresh air system, and eliminates the problem of secondary pollution of the air supply pipes.

[0038] 3. Improve the fresh air replacement effect

[0039] The fresh air supply vents and dirty air exhaust vents of traditional houses are both set on the ceiling under the room ceiling. Since the speed of the fresh air supplied by the air supply vents is usually around 2m / s, the downward dynamic pressure head is very small. A part of the fresh air flow does not sink deeply to participate in the fresh air replacement, but finds the path with the least resistance and the shortest distance between the fresh air positive pressure air supply vents and the dirty air negative pressure air exhaust vents, and goes straight to the exhaust vents along the ceiling surface, causing a part of the fresh air flow to short-circuit, wasting fresh air resources. At the same time, a large area of ​​ventilation blind spots is created at the bottom and four corners of the room, resulting in poor fresh air replacement effect;

[0040] The two-in-one air supply module of the present invention conveys high-position fresh air to the room, and the high-position fresh air pours down from above the door head to the main space of the room, compressing the dirty air to make a composite movement of vertical descent and horizontal translation from top to bottom and from the outer wall to the bottom of the door, and gathers to the return air outlet at the bottom of the return air duct of the room in a negative pressure state, and is sucked into the main exhaust duct in a negative pressure state, and is discharged to the outdoors by the fan of the main exhaust outlet; the present invention adopts an airflow pattern of high delivery and low exhaust of the fresh air flow, which fundamentally changes the problem of fresh air short-circuiting in the traditional fresh air system in which the room inlet and outlet are on the same ceiling plane, resulting in part of the fresh air being unable to sink deeply to replace the dirty air, but finding the shortest distance and minimum resistance from the positive pressure air supply outlet to go straight to the negative pressure exhaust outlet, thereby improving the fresh air replacement effect.

[0041] 4. Reduce the cost of residential fresh air system

[0042] The traditional residential two-way flow whole-house fresh air system is equipped with two sets of air inlet and exhaust main lines and air supply and exhaust ducts in and out of each room, constructing a meridian-shaped whole-house pipe system, using positive pressure to send fresh air to each room and using negative pressure to suck out the dirty air in each room; these tortuous air supply and exhaust ducts, including main lines and room air supply and exhaust ducts, are not only complicated to install, but also need to be covered and decorated after installation to improve the visual effect, and the indoor ceiling needs to be suspended to cover the fresh air and return air ducts and air inlets and outlets, making the fresh air system the highest item in the building decoration cost;

[0043] The present invention uses public spaces and rooms that need to replace fresh air as air ducts, eliminates all fresh air supply ducts of the traditional fresh air system and the corresponding decorations to cover the air ducts and air inlets and outlets, greatly reduces the material usage and on-site installation workload of the whole-house fresh air system, and thus greatly reduces the decoration cost.

[0044] 5. Save indoor space resources

[0045] The present invention also combines the power devices of the fresh air and the circulating air flow in the room, sharing a set of two-in-one air supply modules, and transports high-level fresh air and / or internal circulation air conditioning outlet air to the room by switching between the fresh air inlet damper before the air suction port of the fan and the internal circulation air conditioning return damper; the power devices of the fresh air and the circulating air flow in the room are combined, which not only saves equipment resources such as fans and air ducts, but also saves precious indoor space resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and other features and advantages of the present invention will be more clearly understood through the following detailed description in conjunction with the accompanying drawings, in which:

[0047] Figure 1 This is a schematic diagram of the ventilation system in the existing room group;

[0048] Figure 2 This is a schematic diagram of the fresh air short circuit of the ventilation system in the existing house;

[0049] Figure 3 This is a schematic diagram of the whole-house fresh air system integrating air supply and exhaust modules in Example 1;

[0050] Figure 4 This is a schematic diagram of the air supply and exhaust module in Example 1 in the fresh air state;

[0051] Figure 5 This is a schematic diagram of the air supply and exhaust module in Example 1 in the internal circulation state;

[0052] Figure 6 This is a schematic diagram of the principle of controlling the damper in Example 1;

[0053] Figure 7 This is a schematic diagram of the structure of the control damper in Example 1;

[0054] Figure 8 This is a schematic diagram of the whole-house fresh air system integrating air supply and exhaust modules in Example 2. DETAILED DESCRIPTION

[0055] The present invention will be described in more detail below with reference to the accompanying drawings showing embodiments of the present invention. However, the present invention may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are set forth in order to achieve a full and complete disclosure and to enable those skilled in the art to fully understand the scope of the present invention. In these drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity.

[0056] The present invention provides an integrated whole-house fresh air system with air supply and exhaust modules, which is applied to a room group, wherein the room group includes multiple rooms and a public space connected to each room; the integrated whole-house fresh air system with air supply and exhaust modules includes: an air supply and exhaust module, which is arranged in the public space or in one of the rooms; the air supply and exhaust module includes an exhaust chamber and an air inlet chamber, the air inlet chamber connects the public space / room with the outside of the room group, and the exhaust chamber connects with the outside of the room group; branch air inlets are arranged in each room to realize the connection between each room and the public space; a main exhaust duct is connected to the exhaust chamber, and the main exhaust duct is also connected to each of the rooms through the room return ducts.

[0057] When it is necessary to replace fresh air in each room in the room group, start the first fan and the second fan; under the action of the first fan, the outside fresh air directly enters the public space through the air inlet cavity or enters the public space through the room with the air inlet cavity; positive pressure is formed in the public space, so that the fresh air enters each room through the branch air inlet, replaces the dirty air in the room, and then under the suction action of the second fan, the dirty air is discharged through the room return air duct, the main exhaust duct, and the exhaust cavity, thereby completing the function of fresh air replacement.

[0058] In which, an opening is provided on the wall of the public space or one of the rooms, and the air inlet chamber and the air exhaust chamber are arranged together in the opening; in which, the air inlet chamber and the air exhaust chamber are both located on the outer wall of the public space or one of the rooms; or, the air inlet chamber is located on the inner wall of the public space or one of the rooms, and the air exhaust chamber is located on the outer wall of the public space or one of the rooms.

[0059] Among them, the air supply and exhaust module can be set in the public space. In this case, the outside fresh air directly enters the public space through the air supply and exhaust module, and then enters each room through the branch air inlet on each room for fresh air replacement;

[0060] Alternatively, the air supply and exhaust module can also be set on the outer wall of one of the rooms, so that the fresh air from the outside first enters the room, and then enters the public space from the door or air outlet of the room; after the fresh air enters the public space, it enters each room through the branch air inlets on the room for fresh air replacement.

[0061] As mentioned above, the setting positions of the air supply and exhaust modules can be adjusted according to specific circumstances and are not limited here.

[0062] The whole-house fresh air system with integrated air supply and exhaust modules provided by the present invention is suitable for various types of housing systems. The room group can be a residence or a combination of functional units in a building, such as residential houses, office buildings, hotels and other places, without limitation here; the room group includes multiple rooms and a public space connected to the rooms, wherein the public space can be a hall connecting the room group or a passage connecting the rooms.

[0063] The whole-house fresh air system with integrated air supply and exhaust modules provided by the present invention uses a fan as a power source to introduce outdoor fresh air into the room and exhaust the indoor dirty air to the outside, thereby implementing whole-house fresh air replacement, which has the following beneficial effects:

[0064] 1. Reduce the workload of opening holes in the exterior wall, installation, and the occupation of indoor space resources by fresh air system equipment

[0065] Specifically, the present invention only opens one hole on the outer wall, and only sets one equipment platform outside the wall, and integrates the air supply module and the exhaust module of the whole-house fresh air system onto the platform, thereby reducing the workload of on-site installation and improving the visual effect of the building facade;

[0066] 2. Eliminate secondary pollution of air supply pipe

[0067] The traditional house fresh air system needs to set up air inlet ducts and air outlet ducts connecting the outdoor environment with the rooms. The ducts are tortuous, which is not only complicated to install and costly, but also affects the appearance. The present invention cancels the setting of the air inlet duct, thereby greatly simplifying the entire fresh air replacement system, which is conducive to reducing costs and avoiding affecting the appearance.

[0068] Moreover, during the operation and shutdown stages of traditional house fresh air systems, a large amount of difficult-to-remove dust will accumulate in the inlet and outlet air ducts, which is easy to breed bacteria and mildew, and also provides a breeding ground for mosquitoes, flies, bedbugs, cockroaches and even mice. In particular, the dust, microorganisms, bedbug and cockroach feces, etc. accumulated in the air supply duct (fresh air duct) are blown into the indoor space with the fresh air during operation, bringing new serious secondary pollution health and sanitation problems for the room. The present invention uses the public space / room that needs to replace the fresh air as the air duct, replaces the air supply duct with the room, cancels the air supply duct of the traditional residential fresh air system, and completely eliminates the new health and sanitation problems for the room caused by the secondary pollution caused by the dust, bacteria, microorganisms, bedbug and cockroach feces accumulated in the air supply duct (fresh air duct) when the fresh air is blown into the indoor space when the fresh air is running.

[0069] The following is a further description of specific embodiments:

[0070] Example 1

[0071] Reference Figure 3-5This embodiment provides a whole-house fresh air system integrating air supply and exhaust modules, and specifically describes it by taking a residential building as an example of a room group.

[0072] In this embodiment, the room group includes a passage 2 (public space) and a plurality of rooms 1 connected to the passage 2. The plurality of rooms may specifically include a study, a bedroom, a living room, etc. In this embodiment, the passage 2 is used as the public space.

[0073] In this embodiment, the air supply and exhaust module 3 is arranged on the outer wall of one of the rooms (for example, a study), and a platform 8 is arranged on the outer wall. The air supply and exhaust module 3 is installed on the platform 8. At the same time, an opening is opened on the outer wall corresponding to the air supply and exhaust module 3 to allow the exhaust cavity and the air inlet cavity in the air supply and exhaust module 3 to extend into the room. The air inlet cavity is connected with the room, and the exhaust cavity is connected with the main exhaust duct passing through the room.

[0074] In this embodiment, a first fan 404 is disposed in the air inlet cavity, a second fan 302 is disposed in the air exhaust cavity 301 , and a damper 303 is disposed in the air exhaust cavity 301 for controlling the opening and closing of the air exhaust cavity 301 .

[0075] In this embodiment, a two-in-one air supply module is also provided in the air inlet cavity and / or the branch air inlet, which is used to realize the two-in-one functions of fresh air replacement and internal heat exchange circulation in the whole house or each room.

[0076] Specifically, the two-in-one air supply module 4 includes a heat exchange channel 401 , an air inlet channel 402 and an air return channel 403 .

[0077] When the two-in-one air supply module 4 is arranged in the air inlet cavity, one end of the air inlet channel 402 is connected to the outside of the room group, and the other end is connected to the heat exchange channel 401, and one end of the return air channel 403 is connected to the room corresponding to the air inlet cavity, and the other end is connected to the heat exchange channel 401. When the two-in-one air supply module 4 is arranged on the branch air inlet in each room, one end of the air inlet channel 402 is connected to the public space (channel 2), and the other end is connected to the heat exchange channel 401, and one end of the return air channel 403 is connected to the room corresponding to the branch air inlet, and the other end is connected to the heat exchange channel 401. A heat exchanger 405 is arranged in the heat exchange channel 402, and a first fan 404 is arranged on one side of the heat exchanger 405. The heat exchanger 405 is also connected to a circulation unit that provides heat exchange medium for it.

[0078] In this embodiment, when the two-in-one air supply module 4 is arranged at the room air inlet, the outlet connected to the room by the heat exchange channel 401 is arranged near the top of the room; the wall of the room close to the public space connected thereto has a vertically extending hollow wall column, which directly constitutes the room return air duct 5, and the room return air duct 5 is arranged near the bottom of the room at the inlet connected to the room, and the other end is connected to the main exhaust duct outside the room. This embodiment realizes the airflow pattern of high supply and low exhaust of the fresh air flow in the room through the above arrangement, which fundamentally changes the problem of fresh air short-circuiting in the traditional fresh air system where the room air inlet / outlet are located at the same ceiling plane, resulting in part of the fresh air not being able to sink to the bottom but finding the minimum resistance and shortest distance from the positive pressure air inlet to the negative pressure exhaust outlet.

[0079] Furthermore, the outlet of the heat exchange channel is composed of a circular arc-shaped air outlet surface and a straight air outlet surface; the purpose of such a setting is to ensure that the air output from the heat exchange channel can be fully diffused.

[0080] Furthermore, the air inlet and the two-in-one air supply module 4 are arranged above the door frame of the room. This embodiment fully exploits the advantages of the door as a control node for the entry and exit of people and objects in the room, the space before and after the door is not blocked by furniture and objects, and the passage before and after the door is conducive to airflow. The two-in-one air supply module 4 on the upper part of the door frame is used as a means of regulating the fresh air flow, and the passage and the room that needs to replace the fresh air are used as the air duct. Most of the air ducts of the traditional residential fresh air system, including all the fresh air supply ducts, and the corresponding ceiling decoration that conceals the air ducts are cancelled. Of course, in other embodiments, the air inlet and the two-in-one air supply module 4 may not be arranged above the door frame of the room, and can be adjusted according to the specific situation, which is not limited here.

[0081] In this embodiment, control dampers are respectively provided at the connection point between the air inlet channel 402 and the heat exchange channel 401 , and at the connection point between the return air channel 403 and the heat exchange channel 401 .

[0082] In this embodiment, combined with Figure 4 and Figure 7 A first control damper 701 is provided at the connection point between the air inlet channel 402 and the heat exchange channel 401 , and a second control damper 702 is provided at the connection point between the air return channel 403 and the heat exchange channel 401 .

[0083] Specifically, refer to Figure 6-7The first control damper includes a first fixed orifice plate, a first sliding orifice plate and a driving device, wherein a plurality of first ventilation areas arranged in sequence are arranged on the first fixed orifice plate; the first sliding orifice plate is overlapped with the first fixed orifice plate, and first air distribution ports are arranged at positions on the first sliding orifice plate corresponding to the first ventilation areas on the first fixed orifice plate, and the first air distribution ports can cover the first ventilation areas; the driving device is used to push the first sliding orifice plate to move relative to the first fixed orifice plate, and during the relative movement, the overlapping parts of the first ventilation areas and the first air distribution ports change, thereby realizing the switching of the first ventilation areas and the adjustment of the air flow, thereby realizing the switching or flow adjustment between the air inlet channel and the heat exchange channel.

[0084] The second control damper includes a second fixed orifice plate, a second sliding orifice plate and a driving device, wherein the second fixed orifice plate is provided with a plurality of second ventilation areas arranged in sequence; the second sliding orifice plate is overlapped with the second fixed orifice plate, and second air distribution ports are provided at positions on the second sliding orifice plate corresponding to each second ventilation area on the second fixed orifice plate, and the second air distribution ports can cover the second ventilation areas; the driving device is used to push the second sliding orifice plate to move relative to the second fixed orifice plate, and during the relative movement, the overlapping parts of each second ventilation area and the second air distribution ports change, thereby realizing the switching of the second ventilation area and the adjustment of the air flow, thereby realizing the switching or flow adjustment between the return air channel and the heat exchange channel.

[0085] Among them, a plurality of first ventilation areas / second ventilation areas are evenly distributed along the horizontal or vertical intervals of the first fixed orifice plate / the second fixed orifice plate, and a plurality of first air distribution ports / second air distribution ports are evenly distributed along the horizontal or vertical intervals of the first sliding orifice plate / the second sliding orifice plate; and the first ventilation area / the second ventilation area has the same shape and size as the first air distribution ports / the second air distribution ports; and the moving direction of the first sliding orifice plate / the second sliding orifice plate is along the arrangement direction of the first ventilation area / the second ventilation area and the first air distribution ports / the second air distribution ports.

[0086] Among them, the spacing between adjacent first ventilation areas / second ventilation areas is equal to the spacing between adjacent first air distribution outlets / second air distribution outlets; the distance between adjacent first air distribution outlets / second air distribution outlets is greater than or equal to the size of the adjacent first ventilation areas / second ventilation areas in the moving direction between the first fixed orifice plate / second fixed orifice plate and the first sliding orifice plate / second sliding orifice plate.

[0087] Further, such as Figure 7 As shown in the figure, in this embodiment, the air inlet channel 402 is arranged opposite to the heat exchange channel 401, and the return air channel 403 is arranged perpendicular to the heat exchange channel 401 and the air inlet channel 402 and is connected to both of them at the same time; in this embodiment, the first control damper and the second control damper are arranged in parallel, and share a driving device 703, which drives the first sliding orifice plate of the first control damper and the second sliding orifice plate of the second control damper to move together.

[0088] Furthermore, the first ventilation area on the first fixed orifice plate on the first control damper is staggered with the second ventilation area on the second fixed orifice plate on the second control damper; the first air distribution area on the first sliding orifice plate on the first control damper is opposite to the second air distribution area on the second sliding orifice plate on the second control damper.

[0089] The driving device 703 pushes the first sliding orifice plate and the second sliding orifice plate to move together. When the first ventilation area completely overlaps with the first air distribution outlet, the second ventilation area does not overlap with the second air distribution outlet at all, thereby realizing the opening of the first control damper 701 and the closing of the second control damper 702; when the first ventilation area does not overlap with the first air distribution outlet at all, the second ventilation area completely overlaps with the second air distribution outlet, thereby realizing the closing of the first control damper 701 and the opening of the second control damper 702; when the first ventilation area partially overlaps with the first air distribution outlet, the second ventilation area partially overlaps with the second air distribution outlet, thereby realizing the opening of the first control damper 701 and the opening of the second control damper 702.

[0090] In this embodiment, according to the opposite phase relationship between the fresh air damper and the internal circulation return air damper, and the design of the ventilation area and the air distribution area above, the opening of the two dampers is adjusted by the driving device to realize three operation modes: independent operation of fresh air replacement, independent operation of internal circulation air conditioning, and parallel operation of fresh air replacement and internal circulation. It has a simple structure, ingenious design, and simple operation.

[0091] Of course, in other embodiments, the first control damper and the second control damper may also be equipped with a driving device and a driving device respectively, which can be adjusted according to specific circumstances and are not limited here.

[0092] In this embodiment, the outlet of the heat exchange channel 401 and the inlet of the return air channel 403 are arranged vertically. Of course, in other embodiments, the outlet of the heat exchange channel 401 and the inlet of the return air channel 403 can also be arranged left and right, which can be adjusted according to specific circumstances and is not limited here.

[0093] In this embodiment, the circulation unit includes an external heat exchanger, a compressor, and a throttle valve. The heat exchanger 404, the external heat exchanger, the throttle valve, and the compressor are cyclically connected to form a circulation channel for the circulation of heat exchange medium.

[0094] Among them, the circulation unit can use water to output the outdoor air-conditioning unit, or can use refrigerant to output the outdoor air-conditioning unit. There is no limitation here, as long as the group can provide heat exchange medium for the heat exchanger;

[0095] When the output water of the circulation unit is the heat exchange medium, the air-conditioning outdoor unit includes an outdoor air-conditioning unit that generates hot water / cold water. The outdoor air-conditioning unit is connected to a water distributor in a circulation manner, and a valve is also provided on the circulation line; the heat exchangers in each room are respectively connected to the water distributor in a circulation manner to obtain the hot water / cold water in the water distributor for circulation heat exchange.

[0096] When the air-conditioning outdoor unit uses refrigerant as the heat exchange medium, the air-conditioning outdoor unit includes an external heat exchanger, a compressor, and a throttle valve. The indoor heat exchanger, the external heat exchanger, the throttle valve, and the compressor are cyclically connected to form a circulation channel for the circulation of the refrigerant.

[0097] In this embodiment, the air inlet channel 402 located in the air inlet cavity is also provided with a filter device 406 at its inlet communicating with the external environment.

[0098] The working principle of the whole-house fresh air system with integrated air supply and exhaust modules provided in this embodiment is further described below:

[0099] 1. Fresh air replacement independent operation mode

[0100] like Figure 4 When the air pollution level in the room exceeds the limit, the damper 303 is opened, the first fan 404 and the second fan 303 are started, and in each two-in-one air supply module 4, the first control damper 701 between the air inlet channel 402 and the heat exchange channel 401 is opened, the second control damper 702 between the return air channel 403 and the heat exchange channel 401 is closed, and the heat exchanger 405 is closed; the outside fresh air enters the study from the air inlet channel 402 and the heat exchange channel 401 in the air inlet cavity, and then enters the public space channel 2, and then enters each room from the air inlet channel 402 and the heat exchange channel 401 of the two-in-one air supply module 4 on the door frame of each room, pouring down, pressing the dirty air to gather at the bottom of the door, and entering the bottom air intake of the room return air duct. After being sucked in by the negative pressure total exhaust duct 6, it is discharged to the outdoors from the exhaust cavity under the action of the second fan 302.

[0101] 2. Internal circulation air conditioning independent operation mode

[0102] like Figure 5 As shown in , when the air temperature in the room deviates from the set value,

[0103] Close the damper 303, close the second fan 303, open each first fan 404, and in each two-in-one air supply module 4, close the first control damper 701 between the air inlet channel 402 and the heat exchange channel 401, open the second control damper 702 between the return air channel 403 and the heat exchange channel 401, and the heat exchanger 405 works; under the action of the first fan 404, the air in the room enters the return air channel 403, and then enters the heat exchange channel 401, flows through the heat exchanger 405 to be cooled and dehumidified (or heated and heated), and then is transported back to the room, thereby realizing circulating air conditioning in the room.

[0104] The room fresh air system with two-in-one fresh air replacement and internal circulation provided in this embodiment has the following advantages:

[0105] 1. Reduce the workload of opening holes in the exterior wall, installation, and the occupation of indoor space resources by fresh air system equipment

[0106] In this embodiment, only one hole is opened on the outer wall, and only one equipment platform is set outside the wall. The air supply module and the exhaust module of the whole-house fresh air system are integrated on this platform, which reduces the workload of on-site installation and improves the visual effect of the building facade.

[0107] 2. Eliminate secondary pollution of air supply pipe

[0108] During the operation and shutdown of the traditional two-way flow residential fresh air system, a large amount of dust that cannot be removed accumulates in the supply and exhaust ducts and in the decorative interlayer between the ducts and the covering ducts, breeding bacteria and mold, and providing a breeding ground for mosquitoes, flies, bedbugs, cockroaches and even rats. In particular, the inner wall of the air supply duct (fresh air duct) is prone to condensation, and the attached wet dust becomes a culture medium for bacteria and microorganisms, generating new secondary pollution. The bacteria, microorganisms, bedbug and cockroach feces accumulated in the air supply duct are blown into the indoor space with the fresh air during fresh air replacement, bringing new serious secondary pollution problems.

[0109] This embodiment uses the two-in-one air supply module on the upper part of the door frame as a means of regulating the fresh air flow, uses the passages and rooms that need to replace fresh air as air ducts, eliminates all fresh air supply ducts and corresponding concealing decorations of the traditional residential fresh air system, and eliminates the problem of secondary pollution of the air supply ducts.

[0110] 3. Improve the fresh air replacement effect

[0111] The fresh air supply vents and dirty air exhaust vents of traditional houses are both set on the ceiling under the room ceiling. Since the speed of the fresh air supplied by the air supply vents is usually around 2m / s, the downward dynamic pressure head is very small. A part of the fresh air flow does not sink deeply to participate in the fresh air replacement, but finds the path with the least resistance and the shortest distance between the fresh air positive pressure air supply vents and the dirty air negative pressure air exhaust vents, and goes straight to the exhaust vents along the ceiling surface, causing a part of the fresh air flow to short-circuit, wasting fresh air resources. At the same time, a large area of ​​ventilation blind spots is created at the bottom and four corners of the room, resulting in poor fresh air replacement effect;

[0112] The two-in-one air supply module of this embodiment conveys high-position fresh air to the room, and the high-position fresh air pours down from above the door head to the main space of the room, forcing the dirty air to make a compound movement of vertical descent and horizontal translation from top to bottom and from the outer wall to the bottom of the door, and gathers at the return air outlet at the bottom of the return air duct of the room which is in a negative pressure state, and is sucked into the main exhaust duct in the negative pressure state and discharged to the outdoors by the fan of the main exhaust outlet; this embodiment adopts an airflow pattern of high delivery and low exhaust of the fresh air flow, which fundamentally changes the problem of fresh air short-circuiting in the traditional fresh air system where the room inlet and outlet are on the same ceiling plane, resulting in part of the fresh air not being able to sink deeply, but finding the shortest distance and minimum resistance from the positive pressure supply outlet to go straight to the negative pressure exhaust outlet, thereby improving the fresh air replacement effect.

[0113] 4. Reduce the cost of residential fresh air system

[0114] The traditional residential two-way flow whole-house fresh air system is equipped with two sets of air inlet and exhaust main lines and air supply and exhaust ducts in and out of each room, constructing a meridian-shaped whole-house pipe system, using positive pressure to send fresh air to each room and using negative pressure to suck out the dirty air in each room; these tortuous air supply and exhaust ducts, including main lines and room air supply and exhaust ducts, are not only complicated to install, but also need to be covered and decorated after installation to improve the visual effect, and the indoor ceiling needs to be suspended to cover the fresh air and return air ducts and air inlets and outlets, making the fresh air system the highest item in the building decoration cost;

[0115] This embodiment uses passages and rooms that need to replace fresh air as air ducts, eliminates all fresh air supply ducts of the traditional fresh air system and the corresponding decorations to cover the air ducts and air inlets and outlets, greatly reduces the material usage and on-site installation workload of the whole-house fresh air system, and thus greatly reduces the decoration cost.

[0116] 5. Save indoor space resources

[0117] This embodiment also combines the power devices of the fresh air and the circulating air flow in the room, sharing a set of two-in-one air supply modules, and delivering high-level fresh air and / or internal circulation air conditioning outlet air to the room by switching between the fresh air inlet damper before the air suction port of the fan and the internal circulation air conditioning return damper; the power devices of the fresh air and the circulating air flow in the room are combined, which not only saves equipment resources such as fans and air ducts, but also saves precious indoor space resources.

[0118] Example 2

[0119] Reference Figure 8 This embodiment is an adjustment based on embodiment 1.

[0120] In this embodiment, a case where the room group is a public building (such as an office building, a hotel, etc.) is taken as an example for specific description.

[0121] In this embodiment, the room group includes a passage 2 and a plurality of rooms 1 distributed on both sides of the passage 2 . In this embodiment, the air supply and exhaust module is arranged on the outer wall at one end of the passage 2 .

[0122] The other structures of the whole-house fresh air system with integrated air supply and exhaust modules in this embodiment can refer to the description in Example 1 and will not be repeated here.

[0123] Those skilled in the art will appreciate that the present invention can be implemented in many other specific forms without departing from its own spirit or scope. Although the implementation cases of the present invention have been described, it should be understood that the present invention should not be limited to these embodiments, and those skilled in the art can make changes and modifications within the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A whole-house fresh air system with integrated air supply and exhaust modules, applied to a room group, wherein the room group includes a plurality of rooms and a public space connected to each room; characterized in that: The whole-house fresh air system with integrated air supply and exhaust modules comprises: An air supply and exhaust module is arranged on the wall of the public space or one of the rooms; the air supply and exhaust module includes an exhaust cavity and an air inlet cavity, the air inlet cavity is connected with the public space / the room and the outside of the room group, and the air exhaust cavity is connected with the outside of the room group; a first fan is arranged in the air inlet cavity, and a second fan is arranged in the air exhaust cavity; A separate air inlet is provided in each of the rooms to achieve the connection between each of the rooms and the public space; A main exhaust duct is connected to the exhaust cavity, and the main exhaust duct is also connected to each of the rooms through the room return ducts; Under the action of the first fan, fresh air from the outside enters the public space directly through the air inlet cavity or enters the public space through a room provided with an air inlet cavity; a positive pressure is formed in the public space, so that fresh air enters each of the rooms through the branch air inlets, and replaces the dirty air in the room, and the dirty air is then discharged through the room return air duct, the main exhaust duct, and the exhaust cavity under the suction action of the second fan; A two-in-one air supply module is arranged in the air inlet cavity and / or the sub-air inlet, and the two-in-one air supply module includes a heat exchange channel, an air inlet channel and a return air channel; One end of the air inlet channel is connected to the outside of the room group or to the branch air inlet, and the other end is connected to the heat exchange channel; One end of the return air channel is connected to the room / the public space, and the other end is connected to the heat exchange channel; A control damper is provided at the connection point between the air inlet channel and the heat exchange channel, and at the connection point between the air return channel and the heat exchange channel; An internal heat exchanger is arranged in the heat exchange channel, the first fan is arranged on one side of the internal heat exchanger, and the internal heat exchanger is also connected to a circulation unit for providing heat exchange medium therefor.

2. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1 is characterized in that: An opening is provided on the wall of the public space or one of the rooms, and the air inlet cavity and the air exhaust cavity are arranged together in the opening; wherein, The air inlet cavity and the air exhaust cavity are both located on the outer wall of the public space or one of the rooms.

3. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1 is characterized in that: Air doors are arranged in the air inlet cavity and the air exhaust cavity.

4. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1 is characterized in that: The control damper comprises: A fixed orifice plate having a plurality of sequentially arranged ventilation areas disposed thereon; A sliding orifice plate, wherein the sliding orifice plate is overlapped with the fixed orifice plate, and air distribution ports are arranged at positions corresponding to the ventilation areas on the sliding orifice plate and the fixed orifice plate, and the air distribution ports can cover the ventilation areas; The driving device is used to push the sliding orifice plate to move relative to the fixed orifice plate. During the relative movement, the overlapping part of each ventilation area and the air distribution port changes, thereby realizing the switching of the ventilation area and the adjustment of the air flow.

5. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1 is characterized in that: The outlet of the heat exchange channel and the inlet of the return air channel are arranged up and down.

6. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1 or 5, characterized in that: The outlet of the heat exchange channel is composed of an arc-shaped air outlet surface and a vertical air outlet surface.

7. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1 is characterized in that: The branch air inlet is arranged above the door frame of the room.

8. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1, characterized in that: The room has a vertically extending hollow wall column in the wall on one side close to the public space connected thereto. The hollow wall column directly constitutes the return air duct. One end of the hollow wall column close to the ground is connected to the room, and the other end is connected to the main exhaust duct.

9. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1, characterized in that: The air inlet chamber is also provided with a fresh air pre-processing module for filtering the fresh air.

10. The whole-house fresh air system with integrated air supply and exhaust modules according to claim 1, characterized in that: The circulation unit comprises an external heat exchanger, a compressor, and a throttle valve. The internal heat exchanger, the external heat exchanger, the throttle valve, and the compressor are cyclically connected to form a circulation channel for the circulation of heat exchange medium.

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