CN105485823A - Fresh air ventilator and fresh air ventilator unit - Google Patents
Fresh air ventilator and fresh air ventilator unit Download PDFInfo
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- CN105485823A CN105485823A CN201410492186.7A CN201410492186A CN105485823A CN 105485823 A CN105485823 A CN 105485823A CN 201410492186 A CN201410492186 A CN 201410492186A CN 105485823 A CN105485823 A CN 105485823A
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- 230000008859 change Effects 0.000 claims abstract description 93
- 238000004146 energy storage Methods 0.000 claims abstract description 90
- 238000001914 filtration Methods 0.000 claims abstract description 49
- 238000011282 treatment Methods 0.000 claims abstract description 21
- 238000004887 air purification Methods 0.000 claims description 7
- 239000011232 storage material Substances 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005338 heat storage Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000004659 sterilization and disinfection Methods 0.000 description 1
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Abstract
The invention provides a fresh air ventilator and a fresh air ventilator group, the fresh air ventilator comprises: return air filtering device communicated with the inside of the building; the phase change energy storage device is communicated with the return air filtering device and exchanges heat with air entering the phase change energy storage device; one end of the air exhaust device is communicated with the phase change energy storage device, and the other end of the air exhaust device is communicated with the outside of the building; when the air exhaust device starts to operate, air inside the building enters the phase change energy storage device from the return air filtering device, and the air and the phase change energy storage device are subjected to heat exchange treatment and then are exhausted to the outside of the building from the air exhaust device; and when the air exhaust device stops running and the air pressure difference between the interior of the building and the exterior of the building is less than zero, the air outside the building enters the phase change energy storage device from the air inlet device, and the air and the phase change energy storage device perform heat exchange treatment and then enter the interior of the building from the return air filtering device.
Description
Technical Field
The invention relates to a fresh air ventilator unit, in particular to a fresh air ventilator and a fresh air ventilator unit.
Background
With the development of the society and the improvement of the living standard of people, people pay more attention to the indoor air quality, and fresh air is an important investigation index of the indoor air quality. The fresh air ventilator is designed and developed according to the principle that fresh air flowing field is formed indoors when air is supplied from one side of a closed room and air is induced from the other side of the closed room. It relies on mechanical air supply and draught to force the formation of new wind flow field in the system. Is a novel environment-friendly electric appliance which can keep indoor air clean and fresh all the time. The independent indoor air replacement and purification circulating system can input natural fresh air while removing indoor polluted air, and the fresh air input into the room is subjected to multiple treatments such as filtration, sterilization, heating, oxygenation and the like.
However, the introduction of fresh air into the room and the treatment of the fresh air to the indoor air state not only requires the consumption of large energy consumption, but also causes adverse effects to the room by directly introducing the fresh air under the condition of harsh outdoor air environment.
At present, the means for solving the problem is mainly to introduce fresh air indoors and recover partial exhaust waste heat simultaneously through air-air heat exchangers such as a static plate type or rotary fresh air heat recovery device and the like, so that the energy consumption of the fresh air is reduced.
Disclosure of Invention
The invention aims to provide a fresh air ventilator and a fresh air ventilator unit, which can recover part of exhaust waste heat while introducing fresh air indoors, and reduce the energy consumption of the fresh air.
In order to achieve the above object, an embodiment of the present invention provides a fresh air ventilator, including:
return air filtering device communicated with the inside of the building;
the phase change energy storage device is communicated with the return air filtering device and exchanges heat with air entering the phase change energy storage device;
one end of the air exhaust device is communicated with the phase change energy storage device, and the other end of the air exhaust device is communicated with the outside of the building;
when the air exhaust device starts to operate, air inside the building enters the phase change energy storage device from the return air filtering device, and the air and the phase change energy storage device are subjected to heat exchange treatment and then are exhausted to the outside of the building from the air exhaust device;
and when the air exhaust device stops running and the air pressure difference between the interior of the building and the exterior of the building is less than zero, the air outside the building enters the phase change energy storage device from the air inlet device, and the air and the phase change energy storage device perform heat exchange treatment and then enter the interior of the building from the return air filtering device.
Wherein, above-mentioned fresh air ventilator still includes:
and the control element is connected with the air exhaust device and controls the running state of the air exhaust device.
Wherein the control element comprises:
the air exhaust device comprises a fan control unit connected with the air exhaust device and a time controller connected with the fan control unit; after the air exhaust device operates for a first time period preset by the time controller, the fan control unit controls the air exhaust device to stop operating;
and after the air exhaust device stops operating for a second time period preset by the time controller, the fan control unit controls the air exhaust device to start operating.
The phase change energy storage device is made of a phase change energy storage material according to a preset packaging mode.
Wherein, return air filter equipment includes: the air conditioner comprises a first air port communicated with the interior of the building and a return air filtering unit covering the first air port; wherein,
after entering the first air port, the air inside the building enters the phase change energy storage device after being filtered by the return air filtering unit; or,
and after passing through the phase change energy storage device, air outside the building is firstly filtered by the return air filtering unit and then enters the interior of the building through the first air opening.
Wherein the air intake device comprises a second air port communicated with the outside of the building and a fresh air purification unit covering the second air port, wherein,
and after entering the second air port, the air outside the building enters the phase change energy storage device after being purified by the fresh air purification unit.
Wherein, the exhaust device is an exhaust fan.
The embodiment of the invention also provides a fresh air ventilator group, which comprises the fresh air ventilators which are arranged in pairs, wherein,
when the exhaust device of the first fresh air ventilator in each pair of fresh air ventilators starts to operate, air in the building enters the phase change energy storage device from the return air filtering device, and the air and the phase change energy storage device are subjected to heat exchange treatment and then are exhausted to the outside of the building from the exhaust device;
and when the air exhaust device of the second fresh air ventilator in each pair of fresh air ventilators stops operating and the air pressure difference between the inside of the building and the outside of the building is less than zero, the air outside the building enters the phase change energy storage device from the air inlet device, and the air and the phase change energy storage device perform heat exchange treatment and then enter the inside of the building from the return air filtering device.
The technical scheme of the invention at least has the following beneficial effects:
in the fresh air ventilator of the embodiment of the invention, the heat exchange between the phase change energy storage device and the air entering the phase change energy storage device is carried out to realize that part of exhaust waste heat is recovered while fresh air is introduced indoors, so that the energy consumption of the fresh air is reduced; meanwhile, the fresh air ventilation and heat recovery processes inside the building are completed through continuous switching and circulation of storage and discharge modes of the phase change energy storage device, the quality of air inside the building is guaranteed while energy consumption is reduced, and adverse effects on the indoor environment caused by the directly introduced fresh air under the severe outdoor environment are avoided.
Drawings
Fig. 1 is a schematic diagram showing a basic structure of a fresh air ventilator according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the air flow direction of the fresh air ventilator set in the winter heat storage mode and the summer heat storage mode according to the embodiment of the present invention;
fig. 3 is a schematic view showing the air flow direction of the fresh air ventilator unit in the winter cooling mode and the summer cooling mode according to the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
Aiming at the problems that the introduction of fresh air into a room in the prior art consumes large energy consumption and the direct introduction of the fresh air can cause adverse effects to the room when the outdoor environment is severe, the invention provides a fresh air ventilator and a fresh air ventilator set, wherein the heat exchange between a phase change energy storage device and air entering the phase change energy storage device is carried out to realize the purpose of recovering partial exhaust waste heat while introducing the fresh air into the room, so that the energy consumption of the fresh air is reduced; meanwhile, the fresh air ventilation and heat recovery processes inside the building are completed through continuous switching and circulation of storage and discharge modes of the phase change energy storage device, the quality of air inside the building is guaranteed while energy consumption is reduced, and adverse effects on the indoor environment caused by the directly introduced fresh air under the severe outdoor environment are avoided.
As shown in fig. 1, an embodiment of the present invention provides a fresh air ventilator, including:
a return air filtering device 1 communicated with the interior of the building;
the phase change energy storage device 2 is communicated with the return air filtering device 1, and the phase change energy storage device 2 exchanges heat with air entering the phase change energy storage device 2;
an air exhaust device 3 and an air intake device 4, wherein one end of the air exhaust device is communicated with the phase change energy storage device 2, and the other end of the air exhaust device is communicated with the outside of the building;
when the air exhaust device 3 starts to operate, air inside the building enters the phase change energy storage device 2 from the return air filtering device 1, and the air and the phase change energy storage device 2 are subjected to heat exchange treatment and then are exhausted to the outside of the building from the air exhaust device 3;
and when the air exhaust device 3 stops running and the air pressure difference between the interior of the building and the exterior of the building is less than zero, the air outside the building enters the phase change energy storage device 2 from the air inlet device 4, and the air and the phase change energy storage device 2 perform heat exchange treatment and then enter the interior of the building from the return air filtering device 1.
In the above embodiment of the present invention, the phase change energy storage device 2 exchanges heat with air, and is equivalent to a heat exchanger; specifically, for example, in the winter heating season, indoor hot air exchanges heat with the phase change energy storage device 2, that is, a part of heat is retained in the phase change energy storage device 2 and then is exhausted to the outside through the exhaust device 3; and outdoor cold wind carries out the heat exchange with phase change energy memory 2, and the heat that phase change energy memory 2 was stored is absorbed to cold wind promptly and heats the cold wind, and rethread return air filter equipment 1 gets into indoor.
In the embodiment of the invention, when the air in the building is exhausted to the outside of the building, the driving mode of the exhaust device 3 is adopted, namely the exhaust device is an exhaust fan, and the exhaust fan is started, so that the air in the building enters the fresh air ventilator of the invention from the return air filtering device 1; when the air outside the building is introduced into the building in the specific application, the negative pressure difference air inlet mode is adopted, namely when the air inside the building is discharged, the air pressure difference between the inside of the building and the outside of the building is smaller than 0, and the air outside the building can enter the fresh air ventilator in a natural air inlet mode; the utilization of the negative pressure difference air inlet mode reduces the arrangement of an air inlet machine and simplifies the structure of the fresh air ventilator.
It should be noted that the fan blades of the exhaust fan used in the present invention can exhaust air only in one direction, so that the negative pressure difference air intake method is required, but the present invention is also applicable to the embodiment of the present invention if the fan blades of the exhaust fan can exhaust air in different directions (i.e. exhaust air in two directions) in the subsequent production. For example, the exhaust fan exhausts air in a first direction, and indoor air is exhausted to the outside; the exhaust fan exhausts air towards the second direction, and outdoor air enters the room. Meanwhile, the fresh air ventilator provided with two exhaust fans (one for exhausting air and one for intake air) is not repeated herein.
In the above embodiment of the present invention, the fresh air ventilator further includes:
and a control element 5 connected to the air discharge device 3 and controlling the operation state of the air discharge device 3.
Specifically, the control element 5 includes:
a fan control unit connected with the air exhaust device 3, and a time controller connected with the fan control unit; after the air exhaust device 3 operates for a first time period preset by the time controller, the fan control unit controls the air exhaust device 3 to stop operating;
and after the air exhaust device 3 stops operating for a second time period preset by the time controller, the fan control unit controls the air exhaust device 3 to start operating.
In the above embodiment of the present invention, the control unit 5 includes a fan control unit for directly controlling the operation state of the exhaust device 3 and a time controller for presetting the operation time and the stop time of the exhaust device 3. The arrangement of the time controller enables the fresh air ventilator provided by the invention to be more intelligent and automatic, and meets the modernization requirements. The specific time duration of the first time period and the second time period can be set according to the air exhaust speed of the air exhaust device 3, the amount of stored energy of the phase change energy storage device 2, the heat release speed, the size of the interior of the building, and other factors, and is not limited to a fixed value, and is not limited to a specific value.
In a specific embodiment of the present invention, the phase change energy storage device 2 is made of a phase change energy storage material according to a predetermined packaging manner.
Specifically, the phase change energy storage material refers to a substance that changes physical properties with a change in temperature and can provide latent heat. The process of changing physical properties is called a phase change process, when the phase change energy storage material will absorb or release a large amount of latent heat. The predetermined packaging manner is preferably that air can smoothly pass through the phase change energy storage device 2, and the time for the air to absorb or release a part of heat is sufficient, and is not limited to a specific form.
In the above embodiment of the present invention, the return air filtering device 1 includes: the air conditioner comprises a first air port communicated with the interior of the building and a return air filtering unit covering the first air port; wherein,
after entering the first air port, the air inside the building enters the phase change energy storage device after being filtered by the return air filtering unit; or,
and after passing through the phase change energy storage device, air outside the building is firstly filtered by the return air filtering unit and then enters the interior of the building through the first air opening.
In a specific application of the present invention, the return air filtering device 1 includes a first air inlet and a return air filtering unit, wherein the return air filtering unit is a filtering device, such as a filter screen, a filter, etc. The arrangement of the return air filtering unit is to filter indoor exhaust air, so that impurities such as large particles in indoor air are prevented from entering the fresh air ventilator to damage elements such as a fan and control elements; meanwhile, the return air filtering unit also filters fresh air entering the room once, so that the purity of the fresh air entering the room is guaranteed.
In the above embodiment of the present invention, the air intake device 4 includes a second air port penetrating the outside of the building and a fresh air purification unit covering the second air port, wherein,
and after entering the second air port, the air outside the building enters the phase change energy storage device 2 after being purified by the fresh air purification unit.
In the embodiment of the invention, the air inlet device 4 comprises the second air opening and the fresh air evolution unit, air outside the building enters from the second air opening, and the fresh air purification unit filters and purifies the air and then enters the inside of the building, so that the cleanliness of the air entering the inside of the building is ensured, and the air quality of the air inside the building is improved.
In order to better achieve the above object, an embodiment of the present invention further provides a fresh air ventilator set, which is characterized by comprising the fresh air ventilators as described above arranged in pairs, wherein,
when the air exhaust device 3 of the first fresh air ventilator in each pair of fresh air ventilators starts to operate, air inside the building enters the phase change energy storage device 2 from the return air filtering device 1, and the air is subjected to heat exchange treatment with the phase change energy storage device 2 and then is exhausted to the outside of the building from the air exhaust device 3;
and when the air exhaust device 3 of the second fresh air ventilator in each pair of fresh air ventilators stops operating and the air pressure difference between the inside of the building and the outside of the building is less than zero, the air outside the building enters the phase change energy storage device 2 from the air inlet device 4, and the air enters the inside of the building from the return air filtering device 1 after being subjected to heat exchange treatment with the phase change energy storage device 2.
It should be noted that the fresh air ventilator unit provided by the present invention is a fresh air ventilator unit including the fresh air ventilators arranged in pairs, and all the embodiments and the advantageous effects of the fresh air ventilator described above are applicable to the fresh air ventilator unit.
As shown in fig. 2 and 3, the specific operation process of the fresh air ventilator unit provided by the invention has the following winter operation modes:
firstly, a first fresh air ventilator in the air conditioner is started through a control element 5, indoor high-temperature air firstly passes through a return air filtering device 1 and then passes through a phase change energy storage device 2, heat exchange is carried out between the indoor high-temperature air and the phase change energy storage device 2, heat is stored in the phase change energy storage device 2, and finally the indoor high-temperature air is exhausted outdoors through an exhaust device 3; meanwhile, the outdoor low-temperature fresh air firstly passes through an air inlet device 4 ' of a second fresh air ventilator, is purified and then passes through a phase change energy storage device 2 ', and at the moment, the phase change energy storage device 2 ' in a heat release state is used for preheating fresh air; the heated outdoor fresh air enters the room from the return air filtering device 1' in a natural air inlet mode.
After a predetermined operating time, the air outlet 3 of the first fresh air ventilator is automatically closed and the air outlet 3' of the second fresh air ventilator is automatically opened. Indoor high-temperature air firstly passes through the return air filtering device 1 'of the second fresh air ventilator, then passes through the phase change energy storage device 2', exchanges heat with the phase change energy storage device, stores heat in the phase change energy storage device 2 ', and finally is exhausted outdoors through the exhaust device 3'; meanwhile, the outdoor low-temperature fresh air passes through the air inlet device 4 of the first fresh air ventilator, is purified and then passes through the phase change energy storage device 2, and the phase change energy storage device 2 in a heat release state carries out preheating fresh air treatment; the heated outdoor fresh air enters the room from the return air filtering device 1 in a natural air inlet mode.
And then, continuously circulating to finish the continuous switching of the storage and discharge modes of the whole winter phase-change energy storage device and the purification treatment of fresh air.
As shown in fig. 2 and 3, the summer operation mode is as follows:
firstly, an exhaust device 3 of a third fresh air ventilator is started through a control element, indoor low-temperature air firstly passes through a return air filtering device 1 and then passes through a phase change energy storage device 2, heat exchange is carried out between the indoor low-temperature air and the phase change energy storage device 2, cold energy is stored in the phase change energy storage device 2, and finally the indoor low-temperature air is exhausted outdoors through the exhaust device 3; meanwhile, outdoor high-temperature fresh air firstly passes through an air inlet device 4 ' of a fourth fresh air ventilator, is purified and then passes through a phase change energy storage device 2 ', and at the moment, the phase change energy storage device 2 ' in a cooling state is subjected to fresh air precooling treatment; the cooled outdoor fresh air enters the room from the return air filtering device 1' in a natural air inlet mode.
After a predetermined operating time, the air outlet 3 of the third fresh air ventilator is automatically closed and the air outlet 3' of the fourth fresh air ventilator is automatically opened. Indoor low-temperature return air firstly passes through a return air filtering device 1 'of a fourth fresh air ventilator, then passes through a phase change energy storage device 2', exchanges heat with the indoor low-temperature return air, stores cold energy in the phase change energy storage device 2 ', and finally is exhausted outdoors through an exhaust device 3'; meanwhile, outdoor high-temperature fresh air firstly enters an air inlet device 4 of a third fresh air ventilator, and is subjected to fresh air precooling treatment through a phase change energy storage device 2 and the phase change energy storage device 2 in a cooling state after being purified; the cooled outdoor fresh air enters the room from the return air filtering device 1 in a natural air inlet mode.
And then, continuously circulating to finish the continuous switching of the storage and discharge modes of the whole summer phase change energy storage device and the purification treatment of fresh air.
The fresh air ventilator set provided by the invention can adopt various forms, can not occupy the suspended ceiling space of a building, can not be provided with an air conditioner room alone, and can realize the integrated design and construction of a building structure.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A fresh air ventilator, comprising:
return air filtering device communicated with the inside of the building;
the phase change energy storage device is communicated with the return air filtering device and exchanges heat with air entering the phase change energy storage device;
one end of the air exhaust device is communicated with the phase change energy storage device, and the other end of the air exhaust device is communicated with the outside of the building;
when the air exhaust device starts to operate, air inside the building enters the phase change energy storage device from the return air filtering device, and the air and the phase change energy storage device are subjected to heat exchange treatment and then are exhausted to the outside of the building from the air exhaust device;
and when the air exhaust device stops running and the air pressure difference between the interior of the building and the exterior of the building is less than zero, the air outside the building enters the phase change energy storage device from the air inlet device, and the air and the phase change energy storage device perform heat exchange treatment and then enter the interior of the building from the return air filtering device.
2. The fresh air ventilator according to claim 1, further comprising:
and the control element is connected with the air exhaust device and controls the running state of the air exhaust device.
3. The fresh air ventilator according to claim 2, wherein the control element comprises:
the air exhaust device comprises a fan control unit connected with the air exhaust device and a time controller connected with the fan control unit; after the air exhaust device operates for a first time period preset by the time controller, the fan control unit controls the air exhaust device to stop operating;
and after the air exhaust device stops operating for a second time period preset by the time controller, the fan control unit controls the air exhaust device to start operating.
4. The fresh air ventilator according to claim 1, wherein the phase change energy storage device is made of a phase change energy storage material in a predetermined packaging manner.
5. The fresh air ventilator according to claim 1, wherein the return air filtering device comprises: the air conditioner comprises a first air port communicated with the interior of the building and a return air filtering unit covering the first air port; wherein,
after entering the first air port, the air inside the building enters the phase change energy storage device after being filtered by the return air filtering unit; or,
and after passing through the phase change energy storage device, air outside the building is firstly filtered by the return air filtering unit and then enters the interior of the building through the first air opening.
6. The fresh air ventilator according to claim 1, wherein the air intake device comprises a second air opening communicating with the outside of the building and a fresh air purification unit covering the second air opening, wherein,
and after entering the second air port, the air outside the building enters the phase change energy storage device after being purified by the fresh air purification unit.
7. The fresh air ventilator of claim 1 wherein the exhaust device is an exhaust fan.
8. A fresh air ventilator unit comprising fresh air ventilators as claimed in any one of claims 1 to 7 arranged in pairs, wherein,
when the exhaust device of the first fresh air ventilator in each pair of fresh air ventilators starts to operate, air in the building enters the phase change energy storage device from the return air filtering device, and the air and the phase change energy storage device are subjected to heat exchange treatment and then are exhausted to the outside of the building from the exhaust device;
and when the air exhaust device of the second fresh air ventilator in each pair of fresh air ventilators stops operating and the air pressure difference between the inside of the building and the outside of the building is less than zero, the air outside the building enters the phase change energy storage device from the air inlet device, and the air and the phase change energy storage device perform heat exchange treatment and then enter the inside of the building from the return air filtering device.
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| CN201410492186.7A CN105485823A (en) | 2014-09-23 | 2014-09-23 | Fresh air ventilator and fresh air ventilator unit |
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| CN201410492186.7A CN105485823A (en) | 2014-09-23 | 2014-09-23 | Fresh air ventilator and fresh air ventilator unit |
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| CN107543274A (en) * | 2016-06-24 | 2018-01-05 | 帕赛波活力日本株式会社 | Air exchange system |
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| CN107763789B (en) * | 2017-11-17 | 2023-11-03 | 四川大学 | Total heat exchange fresh air system |
| DE102018100140B3 (en) | 2017-12-14 | 2019-03-28 | Institut Für Luft- Und Kältetechnik Gemeinnützige Gmbh | Ventilation system with heat storage |
| CN115095162A (en) * | 2022-06-22 | 2022-09-23 | 广东世纪建设工程有限公司 | Construction method of assembled energy-saving building |
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