CN114383242A - Fresh air system - Google Patents
Fresh air system Download PDFInfo
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- CN114383242A CN114383242A CN202011127704.7A CN202011127704A CN114383242A CN 114383242 A CN114383242 A CN 114383242A CN 202011127704 A CN202011127704 A CN 202011127704A CN 114383242 A CN114383242 A CN 114383242A
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- air
- air duct
- humidity adjusting
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- fresh
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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
- F24F7/08—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 with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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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
- F24F13/20—Casings or covers
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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
- F24F13/28—Arrangement or mounting of filters
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
- Drying Of Gases (AREA)
Abstract
The invention relates to the technical field of fresh air, and particularly provides a fresh air system, which aims to solve the problems of influence of the existing fresh air system on indoor temperature and humidity regulation. The fresh air system comprises an air humidity adjusting device and a heat exchanger, wherein the air humidity adjusting device is selectively communicated with a first air channel, a second air channel, a third air channel and a fourth air channel so as to switch the operation mode of the fresh air system, and the heat exchanger spans the first air channel and the fourth air channel and is used for driving working media in the heat exchanger to circularly flow in the two air channels by utilizing the temperature difference of two internal air flows. The temperature difference between the indoor and the outdoor is large in winter, the partial heat exchanger in the first air channel serves as a condensation end, the partial heat exchanger in the fourth air channel serves as an evaporation end, working medium in the evaporation end absorbs heat and evaporates and then flows to the condensation end, heat is released and condensed at the condensation end, and outdoor low-temperature air enters the room from the indoor air supply outlet after being heated up in the process, so that the preheating effect on the outdoor air is achieved, and the purpose that the fresh air system only takes air and does not exchange heat is achieved.
Description
Technical Field
The invention belongs to the technical field of fresh air, and particularly provides a fresh air system.
Background
Along with the requirement of people on the indoor air quality is higher and higher, the simple air conditioning system can not meet the requirement of people on fresh air, so the fresh air system is more and more favored by people, especially in northern areas with poor air quality.
In the transition season, the utilization rate of the fresh air system is the highest, but the simple fresh air system can only carry out simple purification treatment on outdoor air, and when the indoor and outdoor temperature difference is large, the fresh air input from the outdoor can influence the indoor temperature. For example: in winter, outdoor low-temperature air is input into a room by a fresh air system, the indoor temperature cannot reach the target temperature set by a user all the time, and the air conditioner continuously refrigerates. Obviously, when the existing fresh air system is used, the air conditioning load is increased, energy waste is caused, and the indoor actual environment temperature cannot reach the expectation of a user, so that the user experience is poor.
Therefore, how to reduce the influence of the fresh air system on the indoor environment temperature is a technical problem to be considered by those skilled in the art.
Disclosure of Invention
In order to reduce the influence of the fresh air system on the indoor environment temperature, the invention provides a fresh air system on the one hand.
The fresh air system comprises a shell, the shell is divided into a first air channel, a second air channel, a third air channel and a fourth air channel which are mutually independent, and the shell is further provided with an outdoor air inlet communicated with the first air channel, an indoor air supply outlet communicated with the second air channel, an indoor air return inlet communicated with the third air channel and an outdoor air outlet communicated with the third air channel; the new trend system still includes: the air humidity adjusting device is selectively communicated with the first air duct, the second air duct, the third air duct and the fourth air duct so as to switch the operation mode of the fresh air system; and the heat exchanger spans the first air duct and the fourth air duct so as to drive working media in the heat exchanger to circularly flow in the first air duct and the fourth air duct by utilizing the temperature difference of air flows in the first air duct and the fourth air duct.
In a preferred embodiment of the fresh air system of the present invention, the heat exchanger is a heat pipe heat exchanger.
In a preferable embodiment of the above fresh air system of the present invention, the casing is divided into the first air duct, the second air duct, the third air duct, and the fourth air duct by a horizontal partition plate and a vertical partition plate, the horizontal partition plate includes a first sub-horizontal partition plate and a second sub-horizontal partition plate, and the heat exchanger is sandwiched by the first sub-horizontal partition plate and the second sub-horizontal partition plate so that the heat exchanger crosses the first air duct and the fourth air duct.
In a preferred embodiment of the above fresh air system of the present invention, the first sub-transverse partition plate, the second sub-transverse partition plate and the vertical partition plate are all thermal insulation plates.
In a preferable embodiment of the fresh air system of the present invention, the air humidity adjusting device includes: an air humidity adjusting element rotatably coupled within the housing and partitioned into two air humidity adjusting parts for dehumidifying or humidifying an air flow flowing therethrough; a driving element for driving the humidity adjusting element to rotate relative to the housing, so that one of the two air humidity adjusting parts is communicated with the first air duct and the second air duct, and the other is communicated with the third air duct and the fourth air duct, or one is communicated with the second air duct and the third air duct, and the other is communicated with the first air duct and the fourth air duct; and two heating elements which are respectively arranged in the first air duct and the third air duct and are used for heating the air flow passing through the air humidity adjusting part in the adsorption state.
In a preferable embodiment of the above fresh air system of the present invention, the heat exchanger is located outside the heating element in the first air duct.
In a preferable embodiment of the fresh air system of the present invention, the humidity adjustment element includes: the number of the ring brackets is at least two, the ring brackets are arranged at intervals in sequence and are rotatably connected to the shell; a partition plate which passes through and is fixedly connected to each of the circular ring supports and partitions the circular ring supports into two accommodation spaces in which the air humidity adjustment parts are filled; the air humidity adjusting part includes: the base materials are connected to the circular ring support at intervals in sequence and fill each accommodating space; a desiccant laid on each layer of the base material to form the air humidity conditioning part.
In a preferred embodiment of the above fresh air system of the present invention, the substrate is specifically ceramic fiber paper or glass fiber paper.
In a preferred embodiment of the above fresh air system of the present invention, the heating element is an electric heating tube.
In a preferable embodiment of the fresh air system of the present invention, the fresh air system further includes a filter screen, and the filter screen is installed in the first air duct, and/or the filter screen is installed in the third air duct.
The fresh air system comprises a shell, wherein the shell is divided into a first air channel, a second air channel, a third air channel and a third air channel which are mutually independent, and the shell is also provided with an outdoor air inlet communicated with the first air channel, an indoor air supply outlet communicated with the second air channel, an indoor air return inlet communicated with the third air channel and an outdoor air outlet communicated with the third air channel; the fresh air system also comprises an air humidity adjusting device and a heat exchanger; the air humidity adjusting device is selectively communicated with the first air channel, the second air channel, the third air channel and the fourth air channel so as to switch the operation mode of the fresh air system; the heat exchanger crosses the first air duct and the fourth air duct and is used for driving working media in the heat exchanger to circularly flow in the first air duct and the fourth air duct by utilizing the temperature difference of air flows in the first air duct and the fourth air duct.
In winter, when the fresh air system is in the outer circulation dehumidification mode, outdoor low-temperature airflow enters the second air channel, because the difference between indoor and outdoor temperatures is large, part of the heat exchangers in the first air channel is used as a condensation end, part of the heat exchangers in the fourth air channel is used as an evaporation end, working media in the evaporation end absorb heat and evaporate and then flow to the condensation end, condensation is carried out at the condensation end, the outdoor low-temperature air enters the room from the indoor air supply outlet after being heated up due to heat in the process, the preheating effect is achieved on the outdoor air, the purpose that the fresh air system only takes a breath and does not exchange heat is achieved, the load of the air conditioner is reduced, energy waste is avoided, and user experience is improved.
Drawings
FIG. 1 is a schematic structural view of a particular embodiment of a fresh air system of the present invention;
fig. 2 is a schematic view of the heat exchanger of fig. 1.
Wherein, the one-to-one correspondence between the names and reference numbers of the respective components in fig. 1 and 2 is as follows:
1, a shell body: 1a first air duct, 1b second air duct, 1c third air duct, 1d fourth air duct, 1j outdoor air inlet, 1p outdoor air outlet, 1s indoor air inlet, 1h indoor air return inlet, 11 vertical partition plates, 12 transverse partition plates and 2 air humidity adjusting elements: 20 ring supports, 21 partition plates, 22a first air humidity adjusting part, 22b second air humidity adjusting part, H1 first heating element, H2 second heating element, Fi indoor fan, Fo outdoor fan, Fr filter screen and EH heat exchanger.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
In the description of the present application, a "controller" may include hardware, software, or a combination of both. Accordingly, the method of the present invention can be implemented in software, or in a combination of software and hardware. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In order to facilitate understanding of the fresh air system of the present invention, the structure and the operation principle of the fresh air system are described in detail below with reference to fig. 1, and fig. 1 is a schematic structural diagram of a specific embodiment of the fresh air system of the present invention.
Referring to fig. 1, in the present embodiment, the fresh air system includes a housing 1, and the housing 1 is divided into a first air duct 1a, a second air duct 1b, a third air duct 1c, and a fourth air duct 1d, which are independent of each other.
In detail, the case 1 includes a cube frame, and a front panel, a rear panel, an inner panel, an outer panel, an upper panel, and a lower panel fixedly mounted on six planes of the cube frame, the front panel being hidden in fig. 1. It should be noted that the terms of orientation "inside and outside" used herein when describing the structure of the fresh air system are set with reference to a living room in which the fresh air system is installed, wherein the inside is located at or near the indoor side, and the outside is located at or near the outdoor side; the directional words "up, down, front and back" are set at the reader's perspective when viewing fig. 1, with the reader-facing side being the front, the reader-back side being the back, the upper side being the top, and the lower side being the bottom. It is to be understood that these directional terms are used merely for clarity in describing the structure of the fresh air system and are not limiting upon the scope of the present invention.
In more detail, the casing 1 is divided into a first air duct 1a, a second air duct 1b, a third air duct 1c and a fourth air duct 1d which are independent of each other by a vertical partition plate 11 and a horizontal partition plate 12. Preferably, in order to ensure that the air flows in the four air ducts do not exchange heat with each other, the vertical partition plate 11 and the horizontal partition plate 12 are both thermal insulation plates.
Further, with reference to fig. 1, an indoor air supply outlet 1s and an indoor air return inlet 1h are formed in an inner panel of the housing 1, the indoor air supply outlet 1s is communicated with the second air duct 1b, and the indoor air return inlet 1h is communicated with the third air duct 1 c; similarly, an outdoor air inlet 1j and an outdoor air outlet 1p are formed in an outer panel of the casing 1, the outdoor air inlet 1j is communicated with the first air duct 1a, and the outdoor air outlet 1p is communicated with the fourth air duct 1 d. Furthermore, line connections are fixedly connected at the four tuyeres at the outside of the housing 1 for connecting external lines.
The fresh air system further comprises an air humidity adjusting device which is arranged in the shell 1 and selectively communicated with the first air channel 1a, the second air channel 1b, the third air channel 1c and the fourth air channel 1d so as to switch the operation mode of the fresh air system.
In detail, with continued reference to fig. 1, the air humidity adjusting device includes an air humidity adjusting element 2 rotatably connected within a housing 1 and partitioned into a first air humidity adjusting part 22a and a second air humidity adjusting part 22b for dehumidifying or humidifying an air flow flowing therethrough, and specifically, both the first air humidity adjusting part 22a and the second air humidity adjusting part 22b can adsorb and absorb water vapor molecules in a normal temperature air flow to achieve a dehumidifying effect on the air flow or desorb and release water vapor molecules in a heated air flow to achieve a humidifying effect on the air flow.
In more detail, the air humidity adjustment element 2 comprises a ring support 20, a baffle 21, a substrate and a desiccant.
The ring support 20 can be formed by bending and welding plates, the number of the ring supports 20 is at least two, the rings are sequentially arranged at intervals, and the selection and processing technology of the ring support 20 is based on that a finished product can rotate and bear certain weight without deformation.
The partition 21 is a solid or hollow plate, and the partition 21 penetrates each of the ring supports 20 and is fixedly coupled to each of the ring supports 20 so as to partition the ring support 20 into two receiving spaces filled with the air humidity adjusting part. Preferably, the length of the partition 21 is close to the diameter of the circular ring support 20, so that the circular ring support 20 can be equally divided into two semicircular accommodating spaces.
The base material is a sheet structure such as ceramic fiber paper or glass fiber paper, and is formed by arranging a plurality of partition plates 21 in parallel and stacking at intervals in sequence, two ends of the base material are fixedly connected with the two circular ring supports 20 respectively, and if a plurality of circular ring supports 20 are arranged in the middle, the base material penetrates through the circular ring supports 20 in the middle position. A desiccant is applied to the surface of each substrate, and the partition 21 partitions the ring frame 20 into a first air humidity adjusting part 22a and a second air humidity adjusting part 22b which are independent of each other and airtight. The partition 21 is made of an air-impermeable material to ensure that the air flow does not pass through the partition 21 and flow between the two air humidity adjustment parts.
Preferably, the desiccant may be any one of a silica gel desiccant, a molecular sieve desiccant, a zeolite desiccant, a MOF desiccant or a composite salt desiccant.
The air humidity adjusting element 2 further comprises two rotating bearings, the outer ring of one bearing is fixedly connected in the bearing hole of the front panel, the outer ring of the other bearing is fixedly connected in the bearing hole of the rear panel, the front end face and the rear end face of the partition plate 21 are fixedly connected with the rotating shafts, the partition plate 21 is fixedly connected with the inner rings of the two rotating bearings through the two rotating shafts respectively, and the central line of each circular ring support 20 is coincided with the two rotating shafts.
The air humidity adjusting device further comprises a driving element for driving the air humidity adjusting element 2 to rotate relative to the housing 1, so that one of the first air humidity adjusting part 22a and the second air humidity adjusting part 22b is communicated with the first air channel 1a and the second air channel 1b, and the other is communicated with the third air channel 1c and the fourth air channel 1d, or one of the first air humidity adjusting part 22a and the second air humidity adjusting part 22b is communicated with the second air channel 1b and the third air channel 1c, and the other is communicated with the first air channel 1a and the fourth air channel 1 d. The drive element may be mounted within the housing 1 or outside the housing 1, depending on the specific construction of the air humidity conditioning element 2. In this embodiment, the driving element is embodied as a stepping motor, and the power output shaft of the stepping motor is coaxially and fixedly connected with a rotating shaft of the partition plate 21, or is fixedly connected with an inner ring of a rotating bearing, as long as it is satisfied that the air humidity adjusting element 2 is driven to rotate around its rotating shaft relative to the housing 1.
Still further, with continued reference to fig. 1, the air humidity adjusting device further includes a first heating element H1 and a second heating element H2, and the first heating element H1 is disposed in the first air passage 1a, the second heating element H2 is disposed in the third air passage 1c, and the first heating element H1 and the second heating element H2 function to heat the air flowing to the first air humidity adjusting part 22a or the second air humidity adjusting part 22b in the desorption state, so that the first air humidity adjusting part 22a or the second air humidity adjusting part 22b can desorb and release its own water vapor molecules to prepare for the next dehumidification.
Preferably, the first heating element H1 and the second heating element H2 of the present embodiment are preferably electric heating tubes, because the electric heating tubes can rapidly heat the air around the electric heating tubes to a high temperature.
With continued reference to fig. 1, the present embodiment further includes a heat exchanger EH, which spans the first air duct 1a and the fourth air duct 1d, and is configured to drive the working medium therein to circulate in the first air duct 1a and the fourth air duct 1d by using the temperature difference between the air flows in the first air duct 1a and the fourth air duct 1d, so as to form an evaporation end and a condensation end.
In detail, the heat exchanger EH is specifically a heat pipe heat exchanger EH, and the working principle of the heat pipe heat exchanger EH is as follows: it includes that a layer of porous capillary wick is inlaid in the inner wall of a sealed high-vacuum tube or cylinder, and is full of liquid-phase working medium. The external heat source inputs heat at the evaporation section to evaporate and vaporize the working medium. The steam flows to the condensing section for condensation, and the released latent heat of vaporization is sent to the outside. The condensate is retracted into the liquid absorption core and flows back to the evaporation section under the action of capillary pressure, and the automatic circulation of the working medium is completed.
With continued reference to fig. 1 and 2, the diaphragm 12 includes a first sub-diaphragm and a second sub-diaphragm, and the heat exchanger EH is sandwiched therebetween by the first sub-diaphragm and the second sub-diaphragm, thereby forming a structure in which the heat exchanger EH spans the first air duct 1a and the fourth air duct 1 d. The first sub-diaphragm and the second sub-diaphragm are both heat insulation plates.
The relative position between the first air channel 1a, the second air channel 1b, the third air channel 1c and the fourth air channel 1d is adjusted according to the rotation of the air humidity adjusting element 2 relative to the shell 1, so that the two adjacent air channels in the first air channel 1a, the second air channel 1b, the third air channel 1c and the fourth air channel 1d can be selectively communicated.
The working principle of the fresh air system in the four operation modes is described in detail below.
External circulation dehumidification mode：
The controller controls the stepping motor to drive the air humidity adjusting element 2 to rotate relative to the shell 1 until the first air humidity adjusting part 22a of the air humidity adjusting element communicates with the first air channel 1a and the second air channel 1b, the second air humidity adjusting part 22b communicates with the third air channel 1c and the fourth air channel 1d, and the indoor fan Fi and the outdoor fan Fo are started. At this time, the outdoor air enters the first air duct 1a from the outdoor air inlet 1j under the action of the indoor fan Fi, when the outdoor air passes through the first air humidity adjusting part 22a, the first air humidity adjusting part 22a gradually reaches a saturated state by absorbing water vapor molecules therein to achieve dehumidification of the outdoor air, and the dehumidified outdoor air enters the room through the second air duct 1b and the indoor air supply outlet 1 s. After a certain time interval, the air humidity adjusting element is rotated by 180 degrees, the saturated first air humidity adjusting part 22a rotates to be communicated with the third air channel 1c and the fourth air channel 1d to enter a desorption state, meanwhile, the second air humidity adjusting part 22b rotates to be communicated with the first air channel 1a and the second air channel 1b to enter an adsorption state, and outdoor air entering the dehumidifier is continuously subjected to dehumidification. When the second heating element H2 is turned on, the indoor air enters the third air duct 1c from the indoor air return opening 1H and is heated by the second heating element H2 under the action of the outdoor fan Fo, and when the heated indoor air flows through the first air humidity adjusting part 22a in the desorption state, the first air humidity adjusting part 22a desorbs and releases water vapor molecules therein, and the indoor air humidity carrying the water vapor molecules increases and flows through the fourth air duct 1d, and finally is discharged out of the housing 1 from the outdoor air outlet 1 p. After a certain time period is set, the air humidity adjusting element periodically rotates at a rhythm of 180 degrees, so that continuous dehumidification is realized, and the time period can be selected within a range of 10-30 min.
Meanwhile, when the indoor environment temperature is far higher than the outdoor environment temperature, part of the heat exchangers EH located in the first air duct 1a serves as a condensation end, part of the heat exchangers EH located in the fourth air duct 1d serves as an evaporation end, working media in the evaporation end exchange heat with high-temperature air entering the shell from the indoor air return port 1h, the working media flow to the condensation end after being evaporated in a heat absorption mode, condensation is carried out at the condensation end, the outdoor low-temperature air enters the room from the indoor air supply port 1s after being preheated and warmed in the process, the outdoor air is preheated, the purpose that the fresh air system only takes a breath and does not exchange heat is achieved, the load of the air conditioner is reduced, energy waste is avoided, and user experience is improved.
An external circulation humidification mode:
the controller controls the stepping motor to drive the air humidity adjusting element 2 to rotate relative to the shell 1 until the first air humidity adjusting part 22a of the air humidity adjusting element communicates with the first air channel 1a and the second air channel 1b, the second air humidity adjusting part 22b communicates with the third air channel 1c and the fourth air channel 1d, and the indoor fan Fi and the outdoor fan Fo are started. At this time, the indoor air enters the third air duct 1c from the indoor air return opening 1h under the action of the outdoor fan Fo, and when the indoor air passes through the second air humidity adjusting portion 22b, the second air humidity adjusting portion 22b absorbs water vapor molecules in the air and gradually reaches a saturated state from an adsorption state, and the indoor air loses the water vapor molecule humidity and is reduced, and finally is discharged out of the casing 1 from the outdoor air outlet 1 p. After a certain time interval, the humidity adjusting component is rotated by 180 degrees, the saturated second air humidity adjusting part 22b rotates to be communicated with the first air channel 1a and the second air channel 1b to enter a desorption state, and the first air humidity adjusting part 22a rotates to be communicated with the third air channel 1c and the fourth air channel 1d to enter an adsorption state. The first heating element H1 is turned on, outdoor air enters the first air duct 1a from the outdoor air inlet under the action of the indoor fan Fi and is heated by the first heating element H1, when the heated outdoor air flows through the second air humidity adjusting part 22b in a desorption state, the second air humidity adjusting part 22b desorbs and releases water vapor molecules to realize humidification of the outdoor air, and the humidified outdoor air flows through the second air duct 1b and finally enters the room from the indoor air supply outlet 1 s. After a certain time period is set, the humidity adjusting part periodically rotates at a rhythm of 180 degrees, so that continuous humidification is realized, and the time period can be selected within a range of 10-30 min.
An internal circulation dehumidification mode:
the controller controls the stepping motor to drive the air humidity adjusting element 2 to rotate relative to the shell 1 until the first air humidity adjusting part 22a of the air humidity adjusting element is communicated with the second air channel 1b and the third air channel 1c, the second air humidity adjusting part 22b is communicated with the first air channel 1a and the fourth air channel 1d, and the indoor fan Fi and the outdoor fan Fo are started. At this time, the indoor air enters the third air duct 1c from the indoor air return opening 1h, and when flowing through the first air humidity adjusting portion 22a, the first air humidity adjusting portion 22a gradually saturates from an adsorption state after adsorbing and absorbing water vapor molecules in the indoor air, so as to realize dehumidification of the indoor air, and the dehumidified indoor air passes through the second air duct 1b, and is finally discharged out of the housing 1 from the indoor air supply opening 1s and enters the room. After a certain time interval, the air humidity adjusting element is rotated by 180 degrees, the saturated first air humidity adjusting part 22a rotates to be communicated with the first air channel 1a and the fourth air channel 1d to enter a desorption state, and the saturated second air humidity adjusting part 22b rotates to be communicated with the second air channel 1b and the third air channel 1c to enter an adsorption state. When the first heating element H1 is turned on, outdoor air enters the first air duct 1a from the outdoor air inlet 1j and is heated by the first heating element H1, and when the heated outdoor air flows through the first air humidity adjusting part 22a in a desorption state, the air humidity adjusting part 22 desorbs and releases water vapor molecules therein, so that the humidity of the outdoor air carrying the water vapor molecules is increased, and the outdoor air with increased humidity flows through the fourth air duct 1d and is finally discharged out of the housing 1 from the outdoor air outlet 1 p. After a certain time period is set, the humidity adjusting part periodically rotates at a rhythm of 180 degrees, so that continuous dehumidification is realized, and the time period can be selected within a range of 10-30 min.
An internal circulation humidification mode:
the controller controls the stepping motor to drive the air humidity adjusting element 2 to rotate relative to the shell 1 until the first air humidity adjusting part 22a of the air humidity adjusting element is communicated with the second air channel 1b and the third air channel 1c, the second air humidity adjusting part 22a is communicated with the first air channel 1a and the fourth air channel 1d, and the indoor fan Fi and the outdoor fan Fo are started. At this time, the outdoor air enters the first air duct 1a from the outdoor air inlet 1j under the action of the outdoor fan Fo, and when the outdoor air passes through the second air humidity adjusting part 22b in the adsorption state, the second air humidity adjusting part 22b gradually saturates from the adsorption state to perform dehumidification processing on the outdoor air after absorbing water vapor molecules in the outdoor air, and the dehumidified outdoor air passes through the fourth air duct 1d and is finally discharged out of the casing 1 from the outdoor air outlet 1 p. After a certain time interval, the humidity adjusting part is rotated by 180 degrees, the saturated second air humidity adjusting part 22b is rotated to be communicated with the second air channel 1b and the third air channel 1c, the desorption state is achieved, and the first air humidity adjusting part 22a is rotated to be communicated with the first air channel 1a and the fourth air channel 1d, and the adsorption state is achieved. The second heating element H2 is turned on, the indoor air enters the third air channel 1c from the indoor air return opening 1H under the action of the indoor fan Fi and is heated, after heating, when the indoor air flows through the second air humidity adjusting part 22b in a desorption state, the second air humidity adjusting part 22b desorbs and releases water vapor molecules to realize humidification treatment on the indoor air, the indoor air after humidification treatment flows through the second air channel 1b, and finally flows out of the shell 1 from the indoor air supply opening 1s to enter the room. After a certain time period is set, the humidity adjusting part periodically rotates at a rhythm of 180 degrees, so that continuous humidification is realized, and the time period can be selected within a range of 10-30 min.
Therefore, the fresh air system is communicated with different air channels to form an internal circulation ventilation mode or an external circulation ventilation mode by rotating the air humidity adjusting element 2, and simultaneously, the condition for meeting the conversion from a desorption release state to an adsorption absorption state is provided for the fresh air system by matching with the electric heating pipe, so that the two air humidity adjusting parts of the fresh air system are converted between the adsorption state and the desorption state, and the dehumidification or humidification requirements under four different modes are met.
In addition, in order to reduce the influence of the heat radiation of the heating element in the first air duct 1a on the heat exchanger EH, in the embodiment, the heat exchanger EH is located inside the first air duct 1a and outside the heating element, so that the outdoor air firstly passes through the heat exchanger EH when entering the first air duct 1a, exchanges heat with the working medium in the heat exchanger EH, and then is heated by the heating element H.
With continued reference to fig. 1, the fresh air system further includes two filter screens Fr, one of the two filter screens Fr is installed in the first air duct 1a and used for filtering outdoor air in the external circulation dehumidification mode and the external circulation humidification mode, and the other filter screen Fr is installed in the fourth air duct 1d and used for filtering air entering the housing from the indoor air return port in the internal circulation dehumidification mode and the internal circulation humidification mode. It can be understood that the filter screen Fr may be installed only in the first air duct or only in the fourth air duct 1d in the fresh air system.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A fresh air system is characterized by comprising a shell, wherein the shell is divided into a first air channel, a second air channel, a third air channel and a fourth air channel which are mutually independent, and the shell is further provided with an outdoor air inlet communicated with the first air channel, an indoor air supply outlet communicated with the second air channel, an indoor air return inlet communicated with the third air channel and an outdoor air outlet communicated with the fourth air channel; the new trend system still includes:
the air humidity adjusting device is selectively communicated with the first air duct, the second air duct, the third air duct and the fourth air duct so as to switch the operation mode of the fresh air system;
and the heat exchanger crosses the first air duct and the fourth air duct so as to drive working media to circularly flow in the first air duct and the fourth air duct by utilizing the temperature difference of air flows in the first air duct and the fourth air duct.
2. The fresh air system as claimed in claim 1, wherein the heat exchanger is a heat pipe heat exchanger.
3. The fresh air system as claimed in claim 1, wherein the housing is divided into the first air duct, the second air duct, the third air duct and the fourth air duct by a horizontal partition plate and a vertical partition plate, the horizontal partition plate includes a first sub-horizontal partition plate and a second sub-horizontal partition plate, and the heat exchanger is sandwiched by the first sub-horizontal partition plate and the second sub-horizontal partition plate so as to cross the first air duct and the fourth air duct.
4. The fresh air system as claimed in claim 3, wherein the transverse partition and the vertical partition are both heat insulation plates.
5. The fresh air system as claimed in any one of claims 1 to 4, wherein the air humidity adjustment device comprises:
an air humidity adjusting element rotatably coupled within the housing and divided into two air humidity adjusting portions for dehumidifying or humidifying an air flow flowing therethrough;
a driving element for driving the humidity adjusting element to rotate relative to the housing, so that one of the two air humidity adjusting parts is communicated with the first air duct and the second air duct, and the other is communicated with the third air duct and the fourth air duct, or one is communicated with the second air duct and the third air duct, and the other is communicated with the first air duct and the fourth air duct;
and the two heating elements are respectively arranged in the first air duct and the third air duct and are used for heating the airflow flowing through the air humidity adjusting part in the desorption state.
6. The fresh air system of claim 5 wherein the heat exchanger is outside the heating element within the first air duct.
7. The fresh air system as claimed in claim 5, wherein the humidity adjustment element comprises:
the number of the ring brackets is at least two, the ring brackets are arranged at intervals in sequence and are rotatably connected to the shell;
a partition plate which passes through and is fixedly connected to each of the circular ring supports and partitions the circular ring supports into two accommodation spaces in which the air humidity adjustment parts are filled; the air humidity adjusting part includes:
the base materials are connected to the circular ring support at intervals in sequence and fill each accommodating space;
a desiccant laid on each layer of the base material to form the air humidity conditioning part.
8. The fresh air system as claimed in claim 6, wherein the substrate is in particular a ceramic fiber paper or a glass fiber paper.
9. The fresh air system as claimed in claim 5, wherein the heating element is in particular an electric heating tube.
10. The fresh air system as claimed in any one of claims 1 to 4, further comprising a filter screen mounted within the first duct and/or at the indoor return vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127704.7A CN114383242B (en) | 2020-10-20 | 2020-10-20 | Fresh air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127704.7A CN114383242B (en) | 2020-10-20 | 2020-10-20 | Fresh air system |
Publications (2)
| Publication Number | Publication Date |
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| CN114383242A true CN114383242A (en) | 2022-04-22 |
| CN114383242B CN114383242B (en) | 2023-03-31 |
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| CN202011127704.7A Active CN114383242B (en) | 2020-10-20 | 2020-10-20 | Fresh air system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115218326A (en) * | 2022-08-29 | 2022-10-21 | 重庆海润绿色科技集团有限公司 | Intelligent digital energy-saving fresh air ventilation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61164623A (en) * | 1985-01-11 | 1986-07-25 | Matsushita Electric Works Ltd | Dehumidifier |
| KR20040009599A (en) * | 2002-07-24 | 2004-01-31 | 김영하 | Air Conditioning Device And Air Conditioning Method Thereof |
| JP2005241065A (en) * | 2004-02-25 | 2005-09-08 | Seibu Giken Co Ltd | Dehumidifying air conditioner |
| KR100611645B1 (en) * | 2005-05-26 | 2006-08-28 | 경원대학교 산학협력단 | Desiccant cooling system using desiccant rotor and heat pipe |
| CN109186015A (en) * | 2018-08-13 | 2019-01-11 | 珠海格力电器股份有限公司 | The control method of air-conditioning system and air-conditioning system |
-
2020
- 2020-10-20 CN CN202011127704.7A patent/CN114383242B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61164623A (en) * | 1985-01-11 | 1986-07-25 | Matsushita Electric Works Ltd | Dehumidifier |
| KR20040009599A (en) * | 2002-07-24 | 2004-01-31 | 김영하 | Air Conditioning Device And Air Conditioning Method Thereof |
| JP2005241065A (en) * | 2004-02-25 | 2005-09-08 | Seibu Giken Co Ltd | Dehumidifying air conditioner |
| KR100611645B1 (en) * | 2005-05-26 | 2006-08-28 | 경원대학교 산학협력단 | Desiccant cooling system using desiccant rotor and heat pipe |
| CN109186015A (en) * | 2018-08-13 | 2019-01-11 | 珠海格力电器股份有限公司 | The control method of air-conditioning system and air-conditioning system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115218326A (en) * | 2022-08-29 | 2022-10-21 | 重庆海润绿色科技集团有限公司 | Intelligent digital energy-saving fresh air ventilation device |
| CN115218326B (en) * | 2022-08-29 | 2023-12-01 | 重庆海润绿色科技集团有限公司 | Intelligent digital energy-saving fresh air ventilator |
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| Publication number | Publication date |
|---|---|
| CN114383242B (en) | 2023-03-31 |
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