CN107606721B - Multifunctional air treatment device for refrigerating in summer and preheating and humidifying air in winter - Google Patents
Multifunctional air treatment device for refrigerating in summer and preheating and humidifying air in winter Download PDFInfo
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- CN107606721B CN107606721B CN201711026989.3A CN201711026989A CN107606721B CN 107606721 B CN107606721 B CN 107606721B CN 201711026989 A CN201711026989 A CN 201711026989A CN 107606721 B CN107606721 B CN 107606721B
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Abstract
The invention relates to a multifunctional air treatment device for refrigerating in summer and preheating and humidifying air in winter, which comprises a plurality of heat exchange plates, wherein air channels formed by two adjacent heat exchange plates at intervals are alternately arranged according to a primary side air channel and a secondary side air channel, the heat exchange plates are sequentially divided into an outdoor air section, a spraying section and an indoor air section along the plate direction of the heat exchange plates, adjustable air boxes are respectively covered above the outdoor air section and the indoor air section, the two adjustable air boxes are provided with adjustable air valves for communicating with the outside air, movable baffle plates for cross sealing the space between the heat exchange plates at the top and the side of the outdoor air section and the indoor air section are also arranged on the outdoor air section and the indoor air section, a static pressure box is also arranged near the indoor side of the indoor air section, the top of the primary side air channel of the spraying section is sealed, water-absorbing fibers are arranged in the secondary side air channel, and a spraying chamber for spraying water to the secondary side air channel is also suspended above the indoor air section. Compared with the prior art, the invention can accurately regulate the temperature, has high wet bulb efficiency, good air humidifying effect, wide application range and the like.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to a multifunctional air treatment device for refrigerating in summer and preheating and humidifying air in winter.
Background
The scholarly Valeriy Maisotsenko in patent US 6581402B 2 discloses a device for cooling gas by using the heat of evaporation of water in the air. The device can cool any gas to near the dew point temperature of the air without the need for a compressor and refrigerant. Since then, the worldwide application of the above-mentioned devices has been increasingly studied and there is a corresponding product of dew point indirect evaporative coolers. Many of these products have already been put into use to reduce building energy consumption and reduce the damage of the ozone layer caused by the traditional refrigerant (freon), thus achieving the purpose of environmental protection. In China, most related products are still in a test stage, but large-scale use in actual engineering projects is not yet seen.
At present, due to structural design and material selection, a water film is not sufficiently formed in the refrigeration process of the existing dew point indirect evaporative cooler, so that working air flow cannot be sufficiently wetted, and the refrigeration effect of the existing dew point indirect evaporative cooler is reduced.
In addition, in the prior art, the dry channel and the wet channel are mostly connected by punching, on one hand, partial water molecules enter the dry channel from the wet channel, and the temperature of a wet bulb rises, so that the refrigerating effect is reduced. On the other hand, the limitation of the perforated structure results in that the flow rate ratio of the air flow of the dry and wet channels cannot be accurately controlled, so that the temperature regulation and adjustment capability is poor.
Meanwhile, the dew point indirect evaporative cooler can be used only in summer due to structural design, and does not have a function of performing heat exchange between outdoor and indoor air in winter to preheat outdoor cold air, thereby reducing heat load thereof. And at the same time, does not have the humidifying capacity.
Disclosure of Invention
The present invention aims at providing one multifunctional air treating device for cooling in summer and preheating and humidifying air in winter.
The purpose of the invention can be realized by the following technical scheme:
a multifunctional air treatment device for refrigerating in summer and preheating and humidifying air in winter comprises a plurality of heat exchange plates which are arranged at intervals and are sealed at the bottom, wherein air channels formed by two adjacent heat exchange plates at intervals are alternately arranged according to a primary side air channel and a secondary side air channel, the heat exchange plates are sequentially divided into an outdoor air section, a spraying section and an indoor air section along the plate direction of the heat exchange plates, adjustable air boxes communicated with the outdoor air section and the indoor air section are respectively covered above the outdoor air section and the indoor air section, adjustable air valves four and a first adjustable air valve communicated with the external air are respectively arranged on the adjustable air boxes of the outdoor air section and the indoor air section, movable baffles for cross sealing the heat exchange plate space between the top and the side of the outdoor air section and the indoor air section are further arranged on the indoor side of the indoor air section, a static pressure box communicated with the indoor side of the indoor air section is further arranged, a cavity in the static pressure box is further communicated with the indoor space and the indoor space through a second adjustable air valve and a third adjustable air valve, the top of the air channel of the spraying section is sealed at the top of the spraying section, water absorption is further arranged in the air channel of the primary side, and spraying fibers forming a water absorption layer are arranged on the spraying section above the secondary side of the spraying section.
Preferably, the secondary side air channel is internally provided with water-absorbing fibers and fins, wherein the water-absorbing fibers are attached to the wall surface of the heat exchange plate of the secondary side air channel, the fins are horizontally arranged between two opposite heat exchange plates of the secondary side air channel, and gaps are formed between partial edges of the fins and the water-absorbing fibers. The fins are arranged to mainly play a role in blocking water and gathering water, and guide water and the like to flow onto the water-absorbing fibers to form a water channel.
More preferably, the width of the gap between the rib edge and the water-absorbent fiber is 0.5 to 3mm.
Preferably, the primary air passage is divided into a plurality of small air passages by a partition member.
More preferably, the partition plate is a sine-shaped plate with wave crests and wave troughs respectively attached to the heat exchange plates, or a partition plate group arranged in parallel at intervals between the two heat exchange plates forming the primary side air passage.
Preferably, in the spraying section, the top of the primary side air channel is sealed by an inclined ridge. The effect of sealing the primary side air channel of the spraying section is achieved, and meanwhile, sprayed water can be guided to enter the wall surface of the heat exchange plate of the secondary side air channel.
More preferably, the inclination angle of the inclined edge is 45 degrees.
Preferably, a shunting hole is further formed at the joint of each of the outdoor air section and the indoor air section and the secondary side air channel of the spraying section. The air flow is guided to uniformly enter the secondary side air channel.
Preferably, the movable baffle comprises a horizontal part and a vertical part which are connected into an inverted L-shaped whole, wherein the horizontal part and the vertical part are both formed by baffles which are arranged in parallel at intervals and are used for sealing a primary side air channel or a secondary side air channel of the same part, and the baffles of the horizontal part and the vertical part are arranged in a staggered manner at intervals, so that the air channels which can be simultaneously sealed by the horizontal part and the vertical part are just opposite. Through the arrangement of the movable baffle and the adjustable air valve, the dry channel and the wet channel can be thoroughly separated, so that the reduction of the refrigeration efficiency caused by the diffusion of moisture from the wet channel to the dry channel is avoided.
More preferably, the width of the baffle is such that it completely encloses the primary-side air passage and the secondary-side air passage.
The air conditioning device of the invention has two working modes in summer and winter:
in summer, the first adjustable air valve is closed, and the third adjustable air valve is opened. The movable baffle moves left and right to summer, at the moment, a primary side air channel on the side portion of the indoor air section and the side portion of the outdoor air section are communicated with the static pressure box, a secondary side air channel is cut off from the static pressure box, the primary side air channel on the upper portion is closed with the adjustable air box, and the secondary side air channel and the adjustable air box are opened. The outdoor hot air exchanges heat with the refrigerating air in the secondary side air channel through the primary side air channel to prepare cold air to achieve the refrigerating purpose. The gas in the secondary side air channel comes from cold air wind in the static pressure tank, and becomes exhaust air after passing through the secondary side air channel and is discharged to the atmosphere. The outdoor hot air temperature is reduced and the absolute humidity is unchanged, so that the outdoor hot air has lower wet bulb temperature. When the water-absorbing fiber passes through the secondary air channel, the water of the water film on the water-absorbing fiber absorbs heat due to evaporation, so that the temperature of the water-absorbing fiber is reduced to the wet bulb temperature and exchanges heat with the outdoor hot air entering the primary air channel, and the temperature of the outdoor hot air is reduced to the sub-dew point temperature.
In winter, two heat exchange and humidification modes exist.
The first method comprises the following steps: the first adjustable air valve is opened, and the third adjustable air valve is closed. The movable flap remains in the summer position. The outdoor cool air and the mixed indoor exhaust air pass through the primary side air passage and exchange heat with the indoor exhaust hot air in the secondary side air passage. When the hot air discharged from the room passes through the secondary side air channel, hot steam is sprayed into the secondary side air channel by using the spray chamber. At this time, the hot steam has two functions: 1. humidifying hot air discharged from an inner chamber of the secondary side air channel; 2. the hot air discharged from the inner chamber of the secondary air channel is heated and finally exchanges heat with the cold air outside the inner chamber of the primary air channel. The indoor exhaust air is divided into two parts after passing through the secondary side air passage, one part is used as exhaust gas to be discharged into the atmosphere, and the other part is mixed with outdoor cold air passing through the primary side air passage and enters the primary side air passage together.
And the second method comprises the following steps: the first adjustable air valve is opened, and the third adjustable air valve is closed. The movable baffle plate moves left and right to a winter position, at the moment, the upper part of the indoor air section is switched into a primary side air channel to be communicated with the adjustable air box, and the side part is switched into a secondary side air channel to be communicated with the static pressure box. The outdoor cold air enters the secondary side air channel and exchanges heat with indoor discharged hot air in the primary side air channel to become humidified preheated air and enter the room. And when the outdoor cold air passes through the secondary side air channel, hot steam is sprayed into the secondary side air channel by using the spray chamber. At this time, the hot steam has two functions: 1. humidifying cold air outside the inner chamber of the secondary side air channel; 2. and heating cold air outside the chamber in the secondary side air channel. The indoor discharge air is discharged to the atmosphere as exhaust air.
Compared with the prior art, the invention has the following advantages:
(1) And wet bulb efficiency is high: the water absorption fibers with high water absorption and high self-expansibility are adopted, so that a water film is fully formed during working, and the wet bulb efficiency of the dew point indirect evaporative cooler is improved, so that the refrigeration effect is enhanced.
(2) Accurately adjusting the temperature: by using the air volume adjusting valve, the flow of the working air flow for refrigeration can be accurately controlled, the ratio of the flow rate of the working air flow to the flow rate of the main air flow is controlled, and the accuracy of temperature adjustment is improved.
(3) Preheating cold air: the switching of the primary and secondary side channels is realized by adjusting the positions of the air door and the movable baffle plate, and the heat exchange between outdoor fresh air and indoor exhaust gas can be realized in winter to preheat outdoor cold air which is about to enter the room. Under the condition of meeting the fresh air, the comfort level of a user is improved, and the energy consumption is reduced.
(4) And air humidification: through the damper, the air can be humidified in winter, and the comfort level of a user can be improved.
(5) And the application range is wide: compared with the dew point indirect evaporative cooler which can only carry out refrigeration operation in summer, the dew point indirect evaporative cooler can still be suitable in winter because cold air can be preheated and humidified.
Drawings
FIG. 1 is an external view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3-1 is a schematic cross-sectional view of a secondary side air passage of the present invention;
FIG. 3-2 is a schematic cross-sectional view of a secondary air passage of the present invention;
FIG. 4 is a schematic view of the primary side air passage of the present invention;
FIG. 5 is a schematic diagram of the movable shutter according to the present invention;
FIG. 6 is a schematic view of the operation of the apparatus of the present invention in summer;
FIG. 7 is a schematic view of a working process of the device of the present invention during winter;
FIG. 8 is a schematic view of another work flow of the apparatus of the present invention during winter;
in the figure, 1-a first adjustable air valve, 2-a second adjustable air valve, 3-a third adjustable air valve, 4-a fourth adjustable air valve, 5-a static pressure box, 6-a spray chamber, 7-a primary side air channel, 8-a secondary side air channel, 9-a heat exchange plate, 10-fins, 11-a movable baffle, 12-a diversion hole, 13-a water-absorbing fiber, 14-a baffle channel, 15-a rubber sealing element, 16-a water film, 17-a water channel, 18-a primary side sine-shaped air channel, 19-a primary side rectangular air channel, 20-an inclined ridge, 21-outdoor hot air, 22-cold air, 23-pre-cold air, 24-cold air, 25-summer exhaust air, 26-outdoor cold air, 27-humidified pre-outdoor cold air, 28-humidified pre-hot air, 29-indoor exhaust hot air, and 30-winter exhaust air.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
A multifunctional air processing device for refrigerating in summer and preheating and humidifying air in winter is structurally shown in figures 1 and 2 and comprises a plurality of heat exchange plates 9 which are arranged at intervals and are sealed at the bottoms, air channels formed by two adjacent heat exchange plates 9 at intervals are alternately arranged according to a primary side air channel 7 and a secondary side air channel 8, the heat exchange plates 9 are sequentially divided into an outdoor air section, a spraying section and an indoor air section along the plate direction, adjustable air boxes communicated with the outdoor air section and the indoor air section are respectively covered above the outdoor air section and the indoor air section, an adjustable air valve four 4 and an adjustable air valve one 1 communicated with the external air are respectively arranged on the adjustable air boxes of the outdoor air section and the indoor air section, movable baffles 11 enabling the air channels between the heat exchange plates 9 on the top and the side to be sealed in a cross mode are further arranged on the outdoor air section and the indoor air section, a static pressure box 5 communicated with the indoor air section is further arranged on the indoor side of the indoor air section, a cavity in the indoor air section is further communicated with an indoor space and a static pressure box 5 communicated with the indoor space through an adjustable air valve two 2 and an adjustable air valve three 3, a spraying channel 7 is further provided with a secondary side of the adjustable air channel 8, and a spraying channel 8 is further arranged above the secondary side of the spraying section, and a water absorption layer 6 is further arranged above the air channel 8, and a spraying section, and a spraying water absorption layer is further formed on the secondary side of the spraying chamber.
As a preferred embodiment of the present invention, as shown in fig. 3-2 and fig. 3-1, a secondary air channel 8 is provided with water-absorbent fibers 13 and ribs 10, wherein the water-absorbent fibers 13 are attached to the wall surfaces of the heat exchange plates 9 of the secondary air channel 8, and the ribs 10 are horizontally installed between the two opposite heat exchange plates 9 of the secondary air channel 8, and ensure that a gap is formed between part of the edges of the ribs 10 and the water-absorbent fibers 13. The fins 10 are provided mainly for the water blocking and collecting function, and guide water and the like to flow on the water-absorbent fibers 13 to form water channels 17.
More preferably, the width of the gap formed between the edge of the rib 10 and the water-absorbent fiber 13 is 0.5 to 3mm.
In a preferred embodiment of the present invention, the primary air passage 7 is divided into a plurality of small air passages by a partition member.
More preferably, as shown in fig. 4, the partition plate members are sine-shaped plate members having wave crests and wave troughs respectively attached to the heat exchange plates 9 (in this case, the corresponding primary side air passages 7 are the primary side sine-shaped air passages 18), or partition plate members arranged in parallel at intervals between two heat exchange plates 9 constituting the primary side air passages 7 (in this case, the corresponding primary side rectangular air passages 19).
In a preferred embodiment of the present invention, the top of the primary air channel 7 in the shower section is sealed with a chamfered edge 20. The effect of sealing the primary side air channel 7 of the spray section is achieved, and meanwhile, sprayed water can be guided to enter the wall surface of the heat exchange plate 9 of the secondary side air channel 8.
More preferably, the inclination angle of the inclined ridge 20 is 45 °.
As a preferred embodiment of the present invention, a diversion hole 12 is further provided at the interface of each of the outdoor air section and the indoor air section with the secondary side air channel 8 of the spray section. Leading the air flow uniformly into the secondary air passage 8.
As a preferred embodiment of the present invention, as shown in fig. 5, the movable baffle 11 includes a horizontal part and a vertical part connected as an inverted L-shaped whole, wherein the horizontal part and the vertical part are both formed by baffles arranged in parallel at intervals, and baffle channels 14 formed between the baffles are used for connecting the primary air channel 7 or the secondary air channel 8, so that the primary air channel 7 or the secondary air channel 8 of the same part can be sealed only by arranging the baffles at intervals with the baffle channels 14, and the baffles of the horizontal part and the vertical part are arranged at intervals with a staggered arrangement, so that the air channels which can be sealed by the horizontal part and the vertical part at the same time are opposite. Through the arrangement of the movable baffle plate 11 and the adjustable air valve, the dry channel and the wet channel can be thoroughly separated, so that the reduction of the refrigeration efficiency caused by the diffusion of moisture from the wet channel to the dry channel is avoided. The baffle may preferably employ a rubber seal 15.
More preferably, the width of the baffle is such that it completely encloses the primary air passage 7 and the secondary air passage 8.
The air conditioning device of the invention has two working modes of summer and winter:
in summer, as shown in fig. 6, the first adjustable air valve 1 is closed, and the third adjustable air valve 3 is opened. The movable baffle plate 11 moves left and right to the summer position, at the moment, the primary side air channel 7 on the side parts of the indoor air section and the outdoor air section is communicated with the static pressure box 5, the secondary side air channel 8 is disconnected with the static pressure box 5, the primary side air channel 7 on the upper part is closed with the adjustable air box, and the secondary side air channel 8 is opened with the adjustable air box. The outdoor hot air 21 exchanges heat with the refrigerating air 24 in the secondary air channel 8 through the primary air channel 7 to prepare cold air 22 for refrigerating. The pre-cooling air 23 in the secondary air passage 8 is derived from the cold air wind 22 in the plenum box 5, passes through the secondary air passage 8 and becomes summer exhaust air 25 to be discharged to the atmosphere. The outdoor hot air 21 has a lower wet bulb temperature since its temperature is lowered while its absolute humidity is unchanged. When it passes through the secondary air passage 8, the water on the water-absorbing fibers 13 absorbs heat due to evaporation of the water from the water film 16, so that it is lowered to the wet bulb temperature and exchanges heat with the hot outdoor air 21 entering the primary air passage 7, thereby lowering the temperature of the hot outdoor air 21 to the sub-dew point temperature.
In winter, two heat exchange and humidification modes exist.
The first method comprises the following steps: as shown in fig. 7, the adjustable air valve one 1 is opened and the adjustable air valve three 3 is closed. The movable barrier 11 remains in the summer position. The cool outdoor air 26 passes through the primary air passage 7 with the mixed indoor discharge air and exchanges heat with the indoor discharge hot air 29 in the secondary air passage 8. When the indoor hot exhaust air 29 passes through the secondary air passage 8, hot steam is injected into the secondary air passage 8 using the shower chamber 6. At this time, the hot steam has two functions: 1. humidifying hot air 29 discharged from the inner chamber of the secondary air channel 8; 2. the hot air 29 exhausted from the inner chamber of the secondary air channel 8 is heated and finally exchanges heat with the cold air 26 outside the inner chamber of the primary air channel 7. The indoor discharge air passes through the secondary air passage 8 and is divided into two parts, one part is discharged to the atmosphere as exhaust air, and the other part is mixed with the outdoor cool air 26 passing through the primary air passage 7 and enters the primary air passage 7 together.
And the second method comprises the following steps: as shown in fig. 8, the adjustable air valve one 1 is opened and the adjustable air valve three 3 is closed. The movable baffle plate 11 moves left and right to winter, at this time, the upper part of the indoor air section is switched into a primary side air channel 7 to be communicated with the adjustable air box, and the side part is switched into a secondary side air channel 8 to be communicated with the static pressure box 5. The outdoor cold air 26 enters the secondary air passage 8 to exchange heat with the indoor discharge hot air 29 in the primary air passage 7, and the humidified and preheated outdoor cold air 27 in the secondary air passage 8 finally becomes humidified and preheated air 28 to enter the indoor space. When the outdoor cold air 26 passes through the secondary air passage 8, hot steam is sprayed into the secondary air passage 8 using the shower chamber 6. At this time, the hot steam has two functions: 1. humidifying cold air 26 outside the chamber in the secondary air channel 8; 2. the secondary air channel 8 heats the cool air 26 outside the chamber. The indoor discharge hot air 29 is discharged to the atmosphere as exhaust air (winter discharge air 30).
Example 1
A multifunctional air processing device for refrigerating in summer and preheating and humidifying air in winter is disclosed, as shown in figure 1 and figure 2, and comprises a plurality of heat exchange plates 9 arranged at intervals and sealed at the bottoms, air channels formed by two adjacent heat exchange plates 9 at intervals are alternately arranged according to a primary side air channel 7 and a secondary side air channel 8, the heat exchange plates 9 are sequentially divided into an outdoor air section, a spraying section and an indoor air section along the plate direction, wherein adjustable air boxes communicated with the outdoor air section and the indoor air section are respectively covered at the bottoms above the outdoor air section and the indoor air section, adjustable air valves four 4 and an adjustable air valve one 1 communicated with the external air are respectively arranged on the adjustable air boxes of the outdoor air section and the indoor air section, movable baffles 11 enabling the air channels between the heat exchange plates 9 at the tops and the side parts to be sealed in a crossed manner are further arranged on the outdoor air section and the indoor air section, a static pressure box 5 communicated with the indoor air section is further arranged at the position close to the indoor side of the indoor air section, a cavity in the box 5 is further communicated with the indoor space and the adjustable air channels 7 through an adjustable air valve two adjustable air valves two 2 and a static pressure box 8, a spraying water film channel 13 is further arranged at the tops of the secondary side of the spraying section, and the spraying channel 8 is further sealed above the secondary side of the spraying section and the spraying chamber 6.
Referring to fig. 3-1 and 3-2, in the present embodiment, the secondary air channel 8 is provided with water-absorbing fibers 13 and ribs 10, wherein the water-absorbing fibers 13 are attached to the wall surfaces of the heat exchange plates 9 of the secondary air channel 8, and the ribs 10 are horizontally installed between two opposite heat exchange plates 9 of the secondary air channel 8, and ensure that a gap is formed between part of the edges of the ribs 10 and the water-absorbing fibers 13. The fins 10 are provided mainly for the water blocking and collecting function, and guide water and the like to flow on the water-absorbent fibers 13 to form water channels 17. The width of the gap formed by the edges of the fins 10 and the water-absorbent fibers 13 is 0.5 to 3mm. The gap width of the embodiment can be selected to be 0.5mm, 1mm, 1.5mm and 3mm according to actual needs.
Referring to fig. 4, the primary air channel 7 is divided into a plurality of small air channels by partition plates, and the partition plates are sinusoidal plates whose wave crests and wave troughs are respectively attached to the heat exchange plates 9 (at this time, the corresponding primary air channel 7 is a primary sinusoidal air channel 18), or partition plate groups arranged in parallel at intervals between two heat exchange plates 9 forming the primary air channel 7 (at this time, the corresponding primary rectangular air channel 19). In the spraying section, the top of the primary side air channel 7 is sealed by an inclined ridge 20 with an inclined angle of 45 degrees. The effect of sealing the primary side air channel 7 of the spray section is achieved, and meanwhile, sprayed water can be guided to enter the wall surface of the heat exchange plate 9 of the secondary side air channel 8.
And shunting holes 12 are further arranged at the joints of the outdoor air section and the indoor air section and the secondary side air channel 8 of the spraying section respectively. The air flow is guided uniformly into the secondary air passage 8.
Referring to fig. 5, the movable baffle 11 includes a horizontal portion and a vertical portion connected to form an inverted L-shaped whole, wherein the horizontal portion and the vertical portion are both formed by baffles arranged in parallel at intervals and used for sealing the primary air channel 7 or the secondary air channel 8 of the same portion, and the baffles of the horizontal portion and the vertical portion are arranged at intervals in a staggered manner, so that the air channels that can be sealed by the horizontal portion and the vertical portion at the same time are opposite. Through the arrangement of the movable baffle plate 11 and the adjustable air valve, the dry channel and the wet channel can be thoroughly separated, so that the reduction of the refrigeration efficiency caused by the diffusion of moisture from the wet channel to the dry channel is avoided. The width of the baffle is such that it completely encloses the primary air passage 7 and the secondary air passage 8.
The air conditioning device of the present embodiment has two operating modes in summer and winter:
in summer, referring to fig. 6, the first adjustable air valve 1 is closed, and the third adjustable air valve 3 is opened. The movable baffle 11 moves left and right to summer, at this time, the primary side air channel 7 on the side portions of the indoor air section and the outdoor air section is communicated with the static pressure box 5, the secondary side air channel 8 is cut off from the static pressure box 5, the primary side air channel 7 on the upper portion is closed with the adjustable air box, and the secondary side air channel 8 is opened with the adjustable air box. The outdoor hot air 21 exchanges heat with the refrigerating air 24 in the secondary air channel 8 through the primary air channel 7 to prepare cold air 22 for refrigerating. The pre-cooling air 23 in the secondary air passage 8 is derived from the cold air wind 22 in the plenum box 5, passes through the secondary air passage 8, and becomes summer exhaust air 25 to be discharged to the atmosphere. The outdoor hot air 21 has a lower wet bulb temperature since its temperature is lowered while its absolute humidity is unchanged. When it passes through the secondary air passage 8, the water on the water-absorbing fibers 13 absorbs heat due to evaporation of the water from the water film 16, so that it is lowered to the wet bulb temperature and exchanges heat with the hot outdoor air 21 entering the primary air passage 7, thereby lowering the temperature of the hot outdoor air 21 to the sub-dew point temperature.
In winter, two heat exchange and humidification modes exist.
The first method comprises the following steps: referring to fig. 7, the adjustable air valve I1 is opened, and the adjustable air valve III 3 is closed. The movable barrier 11 remains in the summer position. The cool outdoor air 26 and the mixed indoor exhaust air pass through the primary-side air passage 7 and exchange heat with the indoor exhaust hot air 29 in the secondary-side air passage 8. When the indoor hot exhaust air 29 passes through the secondary air passage 8, hot steam is injected into the secondary air passage 8 using the shower chamber 6. At this time, the hot steam has two functions: 1. humidifying hot air 29 discharged from the inner chamber of the secondary side air passage 8; 2. the hot air 29 exhausted from the inner chamber of the secondary air channel 8 is heated and finally exchanges heat with the cold air 26 outside the inner chamber of the primary air channel 7. The indoor discharge air passes through the secondary air passage 8 and is divided into two parts, one part is discharged to the atmosphere as exhaust air, and the other part is mixed with the outdoor cool air 26 passing through the primary air passage 7 and enters the primary air passage 7 together.
And the second method comprises the following steps: referring to fig. 8, the first adjustable air valve 1 is opened and the third adjustable air valve 3 is closed. The movable baffle plate 11 moves left and right to winter, at this time, the upper part of the indoor air section is switched into a primary side air channel 7 to be communicated with the adjustable air box, and the side part is switched into a secondary side air channel 8 to be communicated with the static pressure box 5. The outdoor cold air 26 enters the secondary air passage 8 to exchange heat with the indoor discharge hot air 29 in the primary air passage 7, and the humidified and preheated outdoor cold air 27 in the secondary air passage 8 finally becomes humidified and preheated air 28 to enter the indoor space. When the outdoor cold air 26 passes through the secondary air passage 8, hot steam is sprayed into the secondary air passage 8 using the shower chamber 6. At this time, the hot steam has two functions: 1. humidifying cold air 26 outside the chamber in the secondary air channel 8; 2. the secondary air passage 8 heats the cool air 26 outside the chamber. The indoor hot exhaust air 29 is discharged to the atmosphere as exhaust gas (winter exhaust air 30).
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make modifications and alterations without departing from the scope of the present invention.
Claims (8)
1. A multifunctional air treatment device for refrigerating in summer and preheating and humidifying air in winter is characterized by comprising a plurality of heat exchange plates which are arranged at intervals and sealed at the bottoms, air channels formed by two adjacent heat exchange plates at intervals are alternately arranged according to a primary side air channel and a secondary side air channel, the heat exchange plates are sequentially divided into an outdoor air section, a spraying section and an indoor air section along the plate direction of the heat exchange plates, wherein adjustable air boxes communicated with the outdoor air section and the indoor air section are respectively covered at the bottoms of the outdoor air section and the indoor air section, adjustable air valves for communicating with the outdoor air and the indoor air section are respectively arranged on the adjustable air boxes of the outdoor air section and the indoor air section, movable baffles for alternately sealing the spaces between the heat exchange plates at the top and the side parts of the outdoor air section and the indoor air section, a static pressure box communicated with the indoor air section is further arranged near the indoor side of the indoor air section, a cavity in the static pressure box is also respectively communicated with the indoor space and the indoor space through the adjustable air valves, the air channels at the top of the spraying section are sealed at the top of the primary side air channel, fibers formed in the secondary side air channel, and fibers for forming a water absorption film are further arranged above the spraying section;
the secondary side air channel is internally provided with water-absorbing fibers and fins, wherein the water-absorbing fibers are attached to the wall surface of the heat exchange plate of the secondary side air channel, and the fins are horizontally arranged between two opposite heat exchange plates of the secondary side air channel and ensure that part of the edges of the fins form gaps with the water-absorbing fibers;
the primary side air channel is divided into a plurality of small air channels by adopting a partition plate.
2. The multi-functional air treatment device for refrigerating in summer and preheating and humidifying air in winter as claimed in claim 1, wherein the width of the gap formed by the rib edge and the water-absorbent fiber is 0.5-3 mm.
3. The multifunctional air treatment device for summer cooling and winter pre-heating and humidifying air as claimed in claim 1, wherein the partition plate is a sine-shaped plate with wave crests and wave troughs respectively attached to the heat exchange plates, or a partition plate set arranged in parallel and at intervals between two heat exchange plates constituting the primary side air passage.
4. The multi-functional air treatment device for refrigerating in summer and preheating and humidifying air in winter as claimed in claim 1, wherein in the spraying section, the top of the primary air channel is sealed by using an inclined ridge.
5. The multi-functional air treatment device for summer cooling and winter pre-heating of humidified air as claimed in claim 4, wherein the inclination angle of the inclined ridges is 45 °.
6. The multifunctional air processing device for refrigerating in summer and preheating and humidifying air in winter as claimed in claim 1, wherein a shunting hole is further provided at the interface of the outdoor air section and the indoor air section with the secondary side air channel of the spraying section respectively.
7. The multifunctional air treatment device for refrigerating in summer and preheating and humidifying air in winter as claimed in claim 1, wherein the movable baffle comprises a horizontal part and a vertical part which are connected into an inverted L-shaped whole, wherein the horizontal part and the vertical part are both formed by baffles arranged in parallel at intervals, and the baffles of the horizontal part and the vertical part are arranged in a staggered manner at intervals.
8. The multi-functional air treatment device for refrigerating in summer and preheating humidified air in winter as claimed in claim 7, wherein said baffle plate has a width such that it can completely enclose said primary air passage and said secondary air passage.
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