EP2988072B1 - Luftzufuhrverfahren einer vertikalen klimaanlage - Google Patents

Luftzufuhrverfahren einer vertikalen klimaanlage Download PDF

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Publication number
EP2988072B1
EP2988072B1 EP14785039.0A EP14785039A EP2988072B1 EP 2988072 B1 EP2988072 B1 EP 2988072B1 EP 14785039 A EP14785039 A EP 14785039A EP 2988072 B1 EP2988072 B1 EP 2988072B1
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EP
European Patent Office
Prior art keywords
air
heat
exchanged
conditioner
annular
Prior art date
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Active
Application number
EP14785039.0A
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English (en)
French (fr)
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EP2988072A4 (de
EP2988072A1 (de
Inventor
Yongtao Wang
Yu Fu
Rongji XU
Litao JIAO
Jingjing Wang
Shipeng Yu
Mingjie Zhang
Junjun YUAN
Xiaogang Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Group Corp
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Group Corp
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Publication of EP2988072A1 publication Critical patent/EP2988072A1/de
Publication of EP2988072A4 publication Critical patent/EP2988072A4/de
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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/01—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station in which secondary air is induced by injector action of the primary air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor

Definitions

  • the present invention relates to the field of air conditioning technologies, and particularly to a vertical air-conditioner air supply method.
  • An air duct structure of a vertical air-conditioner on a current market generally consists of an air inlet, a centrifugal blower, an evaporator and an air outlet.
  • Indoor air enters the inside of the air-conditioner from air inlet, and after being accelerated by the centrifugal blower, the air enters the evaporator for heat exchange.
  • the air after heat exchange is blown from the air outlet to the indoor, thereby achieving the objective of air-conditioner air supply.
  • the existing vertical air-conditioner can only blow out the heat-exchanged air from the evaporator, the supplied air is not mild enough.
  • the temperature of the air blown out by the air-conditioner is low. The cool air with such low temperature directly blows on a user, making the user, especially an old person that chills, feel very uncomfortable.
  • CN 202 692 257 U discloses an air conditioner with a main body, wherein the main body is provided with an air suction hole, a space and an discharged main body which is arranged in the space; an opening part and an air outlet are arranged at the discharged main body; the opening part is provided with a discharging space; air is guided by the air outlet to discharge outside the space from the periphery of the opening part; the discharged main body comprises a first main body and a second main body; the first main body is provided with a discharging space; and the air outlet is jointly formed by the second main body and the first main body and is used for guiding air blowed from the main body to disperse towards the air outlet.
  • the air conditioner has the advantages of being capable of making the discharged main body look simple and cleanly keeping the discharge space.
  • the present invention provides a vertical air-conditioner air supply method, heat-exchanged air inside a air-conditioner and non-heat-exchanged air outside the air-conditioner are mixed according to a certain ratio to form mixed air to be blown out together, so that the air intake rate of the air-conditioner can be increased, indoor air circulation can be accelerated, and the air-conditioner is enabled to supply milder air, thereby making the user feel more comfortable and improving the user experience.
  • a vertical air-conditioner air supply method is provided, according to the method, an air-conditioner air supply apparatus is disposed in an internal air duct of an air-conditioner body, the air supply apparatus includes at least two air guiding bodies that are hollow and have front and rear openings, the rear opening of the air guiding body is an air inlet, the front opening of the air guiding body is an air outlet, the at least two air guiding bodies are arranged sequentially from front to rear, a through-duct which runs through from front to rear is formed in the middle, a heat-exchanged air duct is formed between two adjacent air guiding bodies, an air inlet of a rear-end air guiding body located at the rear end is a non-heat-exchanged air inlet of the air supply apparatus, an air outlet of a front-end air guiding body located at the front end is a mixed air outlet of the air supply apparatus, the vertical air-conditioner sends heat-ex
  • the flow rate of the non-heat-exchanged air is 0.15 to 0.35 times of the flow rate of the heat-exchanged air.
  • the air guiding body is an annular air guiding body
  • the heat-exchanged air duct is an annular heat-exchanged air duct.
  • the annular air guiding body is of a sheet-like structure, and multiple annular air guiding bodies are arranged sequentially from front to rear to form a nested cylindrical structure.
  • a radial section contour line of the annular air guiding body is a curve of a variable curvature radius.
  • the front-end air guiding body is a front-end annular air guiding body, and a minimum inner caliber of the front-end annular air guiding body is less than a minimum inner caliber of all other annular air guiding bodies.
  • the minimum inner caliber of the front-end annular air guiding body is not less than 0.95 times of the minimum inner caliber of all other annular air guiding bodies.
  • the air supply apparatus includes four annular air guiding bodies.
  • an inner caliber of the front-end annular air guiding body in the four annular air guiding bodies first gradually reduces and then gradually expands from an air inlet of the air guiding body to an air outlet of the air guiding body, and a minimum neck portion of the inner caliber is formed in middle, an annular heat-exchanged air duct is formed between the reduced part of the inner caliber of the front-end annular air guiding body and an annular air guiding body adjacent to the front-end annular air guiding body, and except the front-end annular air guiding body, an inner caliber of the other three annular air guiding bodies gradually reduces from an air inlet to an air outlet.
  • an air-conditioner air supply apparatus is disposed in an internal air duct of an air-conditioner body, the air supply apparatus includes a first air guiding body and a second air guiding body, the first air guiding body is hollow and has front and rear openings, the front opening of the first air guiding body is a mixed air outlet, the rear opening of the first air guiding body is an air inlet, the second air guiding body is hollow and has front and rear openings, the front opening of the second air guiding body is an air outlet, the rear opening of the second air guiding body is a non-heat-exchanged air inlet, the first air guiding body and the second air guiding body are arranged sequentially from front to rear, a through-duct which runs through from front to rear is formed in the middle, a heat-exchanged air duct is formed between the first air guiding body and the second air guiding body, the vertical air-conditioner sends heat
  • the flow rate of the non-heat-exchanged air is 0.15 to 0.35 times of the flow rate of the heat-exchanged air.
  • the air-conditioner air supply apparatus includes a first air guiding body and a second air guiding body.
  • the first air guiding body and the second air guiding body are both annular air guiding bodies, and the heat-exchanged air duct is an annular heat-exchanged air duct.
  • the first air guiding body at least partly gradually reduces from rear to front
  • the second air guiding body at least partly gradually reduces from rear to front
  • the first air guiding body and the second air guiding body are arranged sequentially from front to rear to form a nested cylindrical structure.
  • radial section contour lines of the first air guiding body and the second air guiding body are both a curve of a variable curvature radius.
  • the present invention has the following advantages and positive effects: by using the air-conditioner air supply method in the present invention, when heat-exchanged air inside the air-conditioner is blown out, non-heat-exchanged air outside the air-conditioner and in proportion to the flow rate of the heat-exchanged air is sucked under the negative pressure generated by flow of the heat-exchanged air, two parts of air form mixed air to be blown out simultaneously, the temperature of such mixed air conforms to the temperature needed by human body sensible comfort, and when such air is blown to a user, the user feels more comfortable, thereby improving the user experience.
  • part of external air that is not subjected to heat exchange is sucked under the negative pressure generated by the air supply apparatus, and becomes part of the air finally supplied from the air-conditioner, which increases the overall air intake rate of the air-conditioner, accelerates indoor air circulation, and further improves the overall uniformity of indoor air.
  • each structural component as mentioned below is defined in terms of the position of the structural component in the normal use state relative to the user; front or rear, when used to describe the positions at which multiple structural components are arranged, is also defined in terms of the position of an apparatus formed by the multiple structural components in the normal use state relative to the user.
  • heat-exchanged air refers to air that is from the inside of an air-conditioner and has been subjected to heat exchange by a heat exchanger
  • non-heat-exchanged air refers to air from the environmental space in which the air-conditioner is located, is relative to the heat-exchanged air, and is part of air that is not directly from the heat exchanger
  • mixed air refers to air formed by mixing the heat-exchanged air with the non-heat-exchanged air.
  • shape being annular refers an enclosed structure formed by an annular enclosure, and is not limited to being circular.
  • FIG. 1 is a main view of an embodiment of a vertical air-conditioner to which an air supply method of the present invention applies
  • FIG. 2 is a schematic structural local side-section view of the vertical air-conditioner.
  • the vertical air-conditioner of this embodiment includes an indoor unit, and the indoor unit includes a front panel 2, a rear panel 3, a left panel, a right panel, a top plate and a bottom plate (not marked in the figure) that constitute a housing of the air-conditioner.
  • the housing defines an internal air duct 4 of the air-conditioner.
  • a mixed air outlet 21 is formed on an upper part of the front panel 2
  • a non-heat-exchanged air inlet 31 is formed on an upper part of the rear panel 3 and at a position corresponding to the mixed air outlet 21 on the front panel 2.
  • a blower 5, a heat exchanger 6 and an air-conditioner air supply apparatus 1 are disposed from bottom to top in the internal air duct 4, and the blower 5 is arranged in such a manner that air from the internal air duct 4 of the air-conditioner is blown out from the mixed air outlet 21 on the front panel 2.
  • the air-conditioner air supply apparatus 1 includes four annular air guiding bodies, from front to rear respectively being a front-end annular air guiding body 11, a first middle annular air guiding body 13, a second middle annular air guiding body 14, and a rear-end annular air guiding body 12.
  • the four annular air guiding bodies are all of a sheet-like structure, and are arranged sequentially from front to rear to form a nested cylindrical structure.
  • Each annular air guiding body in the four annular air guiding bodies that are arranged sequentially from front to rear is a single component, and is formed independently.
  • the front-end annular air guiding body 11 located at the farthest front end is hollow and has front and rear two openings, respectively being a mixed air outlet 111 and an air inlet 112;
  • the first middle annular air guiding body 13 is hollow and has front and rear two openings, respectively being an air outlet 131 and an air inlet 132;
  • the second middle annular air guiding body 14 is hollow and has front and rear two openings, respectively being an air outlet 141 and an air inlet 142;
  • the rear-end annular air guiding body 12 located at the farthest rear end is hollow and has front and rear two openings, respectively being an air outlet 121 and a non-heat-exchanged air inlet 122.
  • the front-end annular air guiding body 11, the first middle annular air guiding body 13, the second middle annular air guiding body 14 and the rear-end annular air guiding body 12 are arranged sequentially from front to rear, and a through-duct 18 that runs through all the four annular air guiding bodies from front to rear is formed in the middle.
  • a first annular heat-exchanged air duct 15 is formed between the front-end annular air guiding body 11 and the first middle annular air guiding body 13; a second annular heat-exchanged air duct 16 is formed between the first middle annular air guiding body 13 and the second middle annular air guiding body 14; a third annular heat-exchanged air duct 17 is formed between the second middle annular air guiding body 14 and the rear-end annular air guiding body 12; and the internal air duct 4 in the indoor unit is connected to the through-duct 18 in the air-conditioner air supply apparatus 1 by using the three annular heat-exchanged air ducts.
  • the mixed air outlet 111 of the front-end annular air guiding body 11 being used as an air outlet of the entire air-conditioner air supply apparatus 1 is assembled in an enclosed manner with the mixed air outlet 21 on the front panel 2; and the non-heat-exchanged air inlet 122 in the rear-end annular air guiding body 12 being used as a non-heat-exchanged air inlet of the entire air-conditioner air supply apparatus 1 is assembled in an enclosed manner with the non-heat-exchanged air inlet 31 on the rear panel 3.
  • the vertical air-conditioner air supply method in this embodiment is as follows: When the air-conditioner operates, indoor air enters the inside of the air-conditioner, is accelerated by the blower 5, and enters the heat exchanger 6 for heat exchange.
  • the air speed of the heat-exchanged air blown out from the annular heat-exchanged air duct is increased, so that the surface pressure of the corresponding annular air guiding body decreases to form a negative pressure in the through-duct 18.
  • the non-heat-exchanged air Indoor air outside the air-conditioner is used as the non-heat-exchanged air. Under the negative pressure, the non-heat-exchanged air enters the through-duct 18 from the non-heat-exchanged air inlet 31 on the rear panel 3 and the non-heat-exchanged air inlet 122 of the rear-end annular air guiding body 12, and is mixed with the heat-exchanged air blown out from the annular heat-exchanged air duct to form mixed air, and then sent to the indoors.
  • the flow rate of the non-heat-exchanged air sucked from the non-heat-exchanged air inlet 122 is 0.05 to 0.5 times of the flow rate of the heat-exchanged air blown out from all annular heat-exchanged air ducts.
  • the flow rate of the non-heat-exchanged air is 0.15 to 0.35 times of the flow rate of the heat-exchanged air.
  • the mixed air sent out by using the method is mild, which makes the user feel more comfortable, thereby improving the comfort of the user.
  • part of external air that is not subjected to heat exchange is sucked under the negative pressure generated by the air supply apparatus 1, and becomes part of the air finally supplied from the air-conditioner, which increases the overall air intake rate of the air-conditioner, accelerates indoor air circulation, and further improves the overall uniformity of indoor air.
  • surfaces of the four annular air guiding bodies are all curved surfaces. That is, a radial section contour line of the annular air guiding body is a curve, and is preferably a curve of a variable curvature radius.
  • an inner caliber of the front-end annular air guiding body 11 first gradually reduces and then gradually expands in a direction from the air inlet 112 of the air guiding body to the air outlet of the air guiding body, that is, in a direction of the mixed air outlet 111, to form a reducing portion 113 and an expanding portion 114.
  • a transition point of the reducing portion 113 and the expanding portion 114 is a neck portion 115 of the front-end annular air guiding body 11, and the neck portion 115 is a minimum position for inner calibers at different positions on the front-end annular air guiding body 11.
  • the inner caliber of the air inlet 112 of the front-end annular air guiding body 11 is further greater than an inner caliber of the mixed air outlet 111 when being used as an air outlet.
  • the front-end annular air guiding body 11 is arranged to have a structure of having the expanding portion 114, so that a flaring flow guiding portion can be formed, smoothness of air flow can be increased, especially smooth flow of the mixed air.
  • the first heat-exchanged air duct 15 is formed by the reducing portion 113 of the front-end annular air guiding body 11 and the adjacent first middle annular air guiding body 13.
  • Inner calibers of the first middle annular air guiding body 13, the second middle annular air guiding body 14 and the rear-end annular air guiding body 12 all gradually reduce in a direction from an air inlet to an air outlet.
  • an inner caliber of the air inlet 132 is greater than an inner caliber of the air outlet 131
  • an inner caliber of the air inlet 142 is greater than an inner caliber of the air outlet 141
  • an inner caliber of the non-heat-exchanged air inlet 122 is greater than an inner caliber of the air outlet 121.
  • an inner caliber of the neck portion 115 of the front-end annular air guiding body 11 being the minimum inner caliber of the entire front-end annular air guiding body 11 is less than the minimum inner caliber of the other three annular air guiding bodies. That is, the inner caliber of the neck portion 115 is less than a minimum value of inner calibers of air outlets of the other three annular air guiding bodies.
  • the inner caliber described above refers to an inner perimeter at different positions of inner walls of the annular air guiding body.
  • the minimum inner caliber of the air-conditioner air supply apparatus 1 is located on the front-end annular air guiding body 11, and the front-end annular air guiding body 11 is located at the farthest front end of the entire air-conditioner air supply apparatus 1, when the air-conditioner air supply apparatus 1 is assembled into the indoor unit of the air-conditioner, as shown in the main view in FIG. 1 , the user can see only the expanding portion 114 and the neck portion 115 of the front-end annular air guiding body 11 from the front of the indoor unit, the other structure behind cannot be seen, and good appearance consistency is achieved, thereby improving visual feeling of the user.
  • the other structure of the air-conditioner air supply apparatus 1 except the expanding portion 114 and the neck portion 115 of the front-end annular air guiding body 11 may be arranged flexibly and arbitrarily according to actual needs, so as to improve entire air supply performance of the air-conditioner air supply apparatus 1.
  • the air-conditioner air supply apparatus 1 may be arranged to have a structure of having four annular air guiding bodies, so as to reduce a gap between adjacent annular air guiding bodies, that is, to make the annular heat-exchanged air ducts become narrower, which both improves an air supply speed of the heat-exchanged air and can also increase the negative pressure generated in the through-duct, so that relatively much non-heat-exchanged air is sucked in a case of low noise, an overall air supply rate is improved, and air supply uniformity of the air-conditioner air supply apparatus 1 in the circumferential direction can also be improved.
  • the inner caliber of the neck portion 115 is less than the minimum inner caliber of the other three annular air guiding bodies, the inner caliber of the neck portion 115 is not less than 0.95 times of the minimum inner caliber of the other three annular air guiding bodies.
  • the inner calibers of air outlets of the other three annular air guiding bodies except the front-end annular air guiding body 11 gradually reduce in a direction from the rear-end annular air guiding body 12 to the front-end annular air guiding body 11. That is, an inner caliber of the air outlet 141 of the second middle annular air guiding body 14 is less than that of the air outlet 121 of the rear-end annular air guiding body 12, and an inner caliber of the air outlet 131 of the first middle annular air guiding body 13 is less than that of the air outlet 141 of the second middle annular air guiding body 14.
  • the inner calibers of the three air outlets preferably gradually reduce according a reduction ratio of 2% to 5%.
  • the structure of the annular heat-exchanged air duct is of great importance for reducing air resistance, reducing pressure loss and noise, and therefore further affects the air blowing rate of the external non-heat-exchanged air sucked in by the air-conditioner air supply apparatus 1 and the temperature of the supplied mixed air, and the structure of the heat-exchanged air duct mainly depends on a relative position relationship of two adjacent annular air guiding bodies that form the air duct and the structure of the air guiding bodies.
  • the structure of the annular heat-exchanged air duct is as follows: Using the first annular heat-exchanged air duct 15 as an example, and as shown in the schematic structural radial section view in FIG. 5 , the air duct has an air outlet end 151 that is proximal to the through-duct of the air-conditioner air supply apparatus 1 and an air inlet end 152 that is distal from the through-duct, and the first annular heat-exchanged air duct 15 gradually reduces from the air inlet end 151 to the air outlet end 152.
  • multiple inscribed circles between a surface of the reducing portion 113 and a surface of the first middle annular air guiding body 13 exist in the first annular heat-exchanged air duct 15 formed by the reducing portion 113 of the front-end annular air guiding body 11 and the first middle annular air guiding body 13, for example, inscribed circles 153, 154, 155 and 156, and the diameters of the inscribed circles gradually reduce in a direction from the air inlet end 151 to the air outlet end 152.
  • inscribed circles 153, 154, 155 and 156 for example, inscribed circles 153, 154, 155 and 156, and the diameters of the inscribed circles gradually reduce in a direction from the air inlet end 151 to the air outlet end 152.
  • the inscribed circles 153, 154, 155 and 156 are inscribed circles drawn sequentially from the air inlet end 151 to the air outlet end 152, and a diameter D1 of the inscribed circle 153, a diameter D2 of the inscribed circle 154, a diameter D3 of the inscribed circle 155 and a diameter D4 of the inscribed circle 156 satisfy the following relationship: D1>D2>D3>D4.
  • the air inlet end 151 changes air supply direction greatly in an up-down direction, and air supply direction change of the air outlet end 152 is relatively small.
  • a reduction ratio of the diameters of the inscribed circles is preferably non-proportional, and a reduction ratio of diameters of inscribed circles near to the air inlet end 151 is greater than a reduction ratio of diameters of inscribed circles near to the air outlet end 152.
  • the inscribed circle 153 is an air-inlet-end inscribed circle at the air inlet end 151
  • the inscribed circle 154 is an inscribed circle near to the inscribed circle 153
  • the inscribed circle 156 is an air-outlet-end inscribed circle at the air outlet end 152
  • the inscribed circle 155 is an inscribed circle near to the inscribed circle 156
  • the second annular heat-exchanged air duct 16 and the third annular heat-exchanged air duct 17 are also arranged according to the foregoing condition of the first annular heat-exchanged air duct 15.
  • the air-conditioner air supply apparatus 1 uses the heat-exchanged air duct of the foregoing structure, which not only benefits uniformity of air exhaust in the circumferential direction of the heat-exchanged air duct, but also can change the direction of the heat-exchanged air, so that the heat-exchanged air and the non-heat-exchanged air both are blown out along surfaces of the annular air guiding bodies, which effectively avoids that problems of speed reduction, noise and condensation occur because two parts of air meets and collides at the surfaces of the annular air guiding bodies in the through-duct.
  • FIG. 6 and FIG. 7 show another embodiment of a vertical air-conditioner to which an air supply method of the present invention applies.
  • FIG. 6 is a schematic structural side-section view of this embodiment
  • FIG. 7 is a schematic structural radial section view of an air-conditioner air supply apparatus in this embodiment.
  • a basic structure of the vertical air-conditioner in this embodiment is similar to that of the embodiment in FIG. 1 to FIG. 5 , and a difference is in the structure of the air-conditioner air supply apparatus.
  • an air-conditioner air supply apparatus 7 is disposed on an upper part of the vertical air-conditioner in this embodiment.
  • the air-conditioner air supply apparatus 7 includes two annular air guiding bodies, namely, a first air guiding body 71 and a second air guiding body 72.
  • the first annular air guiding body 71 is hollow and has front and rear openings, the front opening is a mixed air outlet 711, and the rear opening is an air inlet 712; and the second annular air guiding body 72 is hollow and has front and rear openings, the front opening is an air outlet 721, the rear opening is a non-heat-exchanged air inlet 722.
  • the two annular air guiding bodies are both of a sheet-like structure, and are arranged sequentially from front to rear to form a nested cylindrical structure.
  • a through-duct 74 which runs through the two annular air guiding bodies from front to rear is formed in the middle.
  • the first annular air guiding body 71 and the second annular air guiding body 72 are both single components, and are formed independently.
  • An annular heat-exchanged air duct 73 is formed between the first annular air guiding body 71 and the second annular air guiding body 72.
  • An internal air duct (referring to FIG. 2 ) in an indoor unit is connected to the through-duct 74 in the air-conditioner air supply apparatus 7 by using the annular heat-exchanged air duct 73.
  • surfaces of the first annular air guiding body 71 and the second annular air guiding body 72 are both curved surfaces. That is, radial section contour lines of the two annular air guiding bodies are both curves, and are preferably curves of a variable curvature radius. Moreover, as shown in FIG.
  • an inner caliber of the first annular air guiding body 71 first gradually reduces and then gradually expands in a direction from the air inlet 712 of the air guiding body to the mixed air outlet 711 of the air guiding body, and an inner caliber of the second annular air guiding body 72 first gradually reduces and then gradually expands from the air inlet 722 of the air guiding body to the air outlet 721 of the air guiding body, so as to form a better structure that facilitates air guiding.
  • the vertical air-conditioner air supply method in this embodiment is similar to that of the embodiment in FIG. 1 , which is simply described as follows:
  • indoor air enters the inside of the air-conditioner, is accelerated by a blower, and enters a heat exchanger for heat exchange.
  • Heat-exchanged air after heat exchange is blown from the internal air duct to the air-conditioner air supply apparatus 7, enters the through-duct 74 through the annular heat-exchanged air duct 73, and is blown out from the mixed air outlet 711 on the first annular air guiding body 71 and a mixed air outlet on a front panel through the through-duct 74.
  • a negative pressure is formed in the through-duct 74, and indoor air outside the air-conditioner is used as the non-heat-exchanged air.
  • the non-heat-exchanged air enters the through-duct 74 from the non-heat-exchanged air inlet on the rear panel and the non-heat-exchanged air inlet 722 of the second annular air guiding body 72, and is mixed with the heat-exchanged air blown out from the annular heat-exchanged air duct 73 to form mixed air, and then sent to the indoors.
  • the flow rate of the non-heat-exchanged air sucked from the non-heat-exchanged air inlet 722 is 0.05 to 0.5 times of the flow rate of the heat-exchanged air blown out from the annular heat-exchanged air duct 73.
  • the flow rate of the non-heat-exchanged air is 0.15 to 0.35 times of the flow rate of the heat-exchanged air.
  • the mixed air sent out by using the method is mild, which makes the user feel more comfortable, thereby improving the comfort of the user.
  • part of external air that is not subjected to heat exchange is sucked under the negative pressure generated by the air supply apparatus 7, and becomes part of the air finally supplied from the air-conditioner, which increases the overall air intake rate of the air-conditioner, accelerates indoor air circulation, and further improves the overall uniformity of indoor air.
  • the flow rate of the heat-exchanged air and the flow rate of the non-heat-exchanged air may be detected by using air blowing rate tests, and the temperature of the heat-exchanged air and the temperature of the mixed air may be detected by temperature detection.
  • a specific detection process may be performed by using the following method: The mixed air outlet 111 in the air-conditioner air supply apparatus 1 or the mixed air outlet 711 in the air-conditioner air supply apparatus 7 are connected to a receiving room for use of the air blowing rate tests, the air flow rate blown from the mixed air outlet is detected by using the receiving room.
  • a specific detection process may be executed according to related detection standards, which is the prior art and is not described in detail herein. It should be noted that, if the non-heat-exchanged air inlet 31 on the rear panel 3 of the air-conditioner is blocked by using an air blocking panel, in this case, the air blowing rate blown from the mixed air outlet are entirely the flow rate of the heat-exchanged air, which is defined as the air blowing rate of the heat-exchanged air; if the air blocking panel is removed, as described above, the air-conditioner air supply apparatus also blows the non-heat-exchanged air outside the air-conditioner out from the mixed air outlet, that is, the air blowing rate blown from the mixed air outlet is a total rate of the heat-exchanged air and the non-heat-exchanged air, which is defined as the total air blowing rate.
  • the air blowing rate of the heat-exchanged air and the total air blowing rate can be easily obtained by using the receiving room.
  • a difference between the total air blowing rate and the air blowing rate of the heat-exchanged air that are obtained under a same condition is the flow rate of the non-heat-exchanged air sucked under the negative pressure, which is defined as the air blowing rate of the non-heat-exchanged air.
  • the same condition mentioned herein refers to a condition that the detection is performed in a same vertical air-conditioner and by using a same air-conditioner air supply apparatus, and a motor works at a same rotation speed.
  • Embodiment 1 of an air supply detection test A depth of an air-conditioner air supply apparatus from front to rear is 400mm (a thickness of an upper part of a housing of an air-conditioner is also 400 mm), and the air-conditioner is of 3 horse-powers (7200W).
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 1053m 3 /h, 1274m 3 /h, and 221m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.21 times of the air blowing rate of the heat-exchanged air.
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 982m 3 /h, 1178m 3 /h and 196m 3 /h respectively, and the air blowing rate of the non-heat-exchanged air is 0.20 times of the air blowing rate of the heat-exchanged air.
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 928m 3 /h, 1104m 3 /h and 176m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.19 times of the air blowing rate of the heat-exchanged air.
  • the temperature of the mixed air is about 19.5°C, the temperature of the mixed air better conforms to the temperature needed by human body sensible comfort.
  • Embodiment 2 of an air supply detection test A depth of an air-conditioner air supply apparatus from front to rear is 400mm (a thickness of an upper part of a housing of an air-conditioner is also 400 mm), and the air-conditioner is of 2 horse-powers (5000W).
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 982m 3 /h, 1178m 3 /h and 196m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.20 times of the air blowing rate of the heat-exchanged air.
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 928m 3 /h, 1104m 3 /h and 176m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.19 times of the air blowing rate of the heat-exchanged air.
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 864m 3 /h, 1016m 3 /h and 152m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.18 times of the air blowing rate of the heat-exchanged air.
  • the temperature of the mixed air is about 19°C, the temperature of the mixed air better conforms to the temperature needed by human body sensible comfort.
  • Embodiment 3 of an air supply detection test A depth of an air-conditioner air supply apparatus from front to rear is 260mm (a thickness of an upper part of a housing of an air-conditioner is also 260 mm), and the air-conditioner is of 3 horse-powers (7200W).
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 1005m 3 /h, 1331m 3 /h and 326m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.32 times of the air blowing rate of the heat-exchanged air.
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 951m 3 /h, 1236m 3 /h and 285m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.30 times of the air blowing rate of the heat-exchanged air.
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 898m 3 /h, 1158m 3 /h and 260m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.29 times of the air blowing rate of the heat-exchanged air.
  • the room temperature is about 30°C
  • the detected temperature of the heat-exchanged air is about 14°C
  • the temperature of the mixed air is about 20°C
  • the temperature of the mixed air better conforms to the temperature needed by human body sensible comfort.
  • Embodiment 4 of an air supply detection test A depth of an air-conditioner air supply apparatus from front to rear is 260mm (a thickness of an upper part of a housing of an air-conditioner is also 260 mm), and the air-conditioner is of 2 horse-powers (5000W).
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 951m 3 /h, 1236m 3 /h and 285m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.30 times of the air blowing rate of the heat-exchanged air.
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 898m 3 /h, 1158m 3 /h and 260m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.29 times of the air blowing rate of the heat-exchanged air.
  • the air blowing rate of the heat-exchanged air, the total air blowing rate and the air blowing rate of the non-heat-exchanged air are 836m 3 /h, 1070m 3 /h and 234m 3 /h respectively, the air blowing rate of the non-heat-exchanged air is 0.28 times of the air blowing rate of the heat-exchanged air.
  • the room temperature is about 30°C
  • the detected temperature of the heat-exchanged air is about 14°C
  • the temperature of the mixed air is about 20°C
  • the temperature of the mixed air better conforms to the temperature needed by human body sensible comfort.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Duct Arrangements (AREA)

Claims (9)

  1. Luftzufuhrverfahren für eine vertikale Klimaanlage, wobei verfahrensgemäß eine Klimaanlagen-Luftzufuhrvorrichtung (1) in einem inneren Luftkanal eines Klimaanlagengehäuses angeordnet ist, die Luftzufuhrvorrichtung wenigstens zwei Luftführungskörper (11, 12, 13, 14) umfasst, die hohl sind und eine vordere und eine hintere Öffnung aufweisen, die hintere Öffnung des Luftführungskörpers ein Lufteinlass ist, die vordere Öffnung des Luftführungskörpers ein Luftauslass ist, die wenigstens zwei Luftführungskörper von vorn nach hinten nacheinander angeordnet sind, ein durchgehender Kanal (18), der von vorn nach hinten hindurch verläuft, in der Mitte ausgebildet ist, ein Kanal für einem Wärmeaustausch unterzogene Luft (15, 16, 17) zwischen zwei benachbarten Luftführungskörpern ausgebildet ist, ein Lufteinlass eines Luftführungskörpers am hinteren Ende (12), der sich am hinteren Ende befindet, ein Einlass für keinem Wärmeaustausch unterzogene Luft (122) der Luftzufuhrvorrichtung ist, ein Luftauslass eines Luftführungskörpers am vorderen Ende (11), der sich am vorderen Ende befindet, ein Mischlufteinlass (21) der Luftzufuhrvorrichtung ist, die vertikale Klimaanlage im inneren Luftkanal einem Wärmeaustausch unterzogene Luft, die durch einen Wärmetauscher (6) einem Wärmeaustausch unterzogen wurde, vom Kanal für einem Wärmeaustausch unterzogene Luft zum durchgehenden Kanal sendet und keinem Wärmeaustausch unterzogene Luft außerhalb der vertikalen Klimaanlage vom Einlass für keinem Wärmeaustausch unterzogene Luft zum durchgehenden Kanal saugt und die einem Wärmeaustausch unterzogene Luft und die keinem Wärmeaustausch unterzogene Luft Mischluft bilden und dann zusammen aus dem Mischluftauslass durch den durchgehenden Kanal ausgeblasen werden,
    dadurch gekennzeichnet, dass
    jeder der Luftführungskörper (11, 12, 13, 14), die nacheinander von vorn nach hinten angeordnet sind, wobei der durchgehende Kanal (18), der von vorn nach hinten läuft, in der Mitte ausgebildet ist, und die auch den Kanal für einem Wärmeaustausch unterzogene Luft (15, 16, 17) zwischen benachbarten Luftführungskörpern bilden, ein einzelnes Bauteil ist und ein Durchsatz der keinem Wärmeaustausch unterzogenen Luft das 0,05- bis 0,5-Fache eines Durchsatzes der einem Wärmeaustausch unterzogenen Luft ist.
  2. Luftzufuhrverfahren für eine vertikale Klimaanlage nach Anspruch 1, wobei der Luftführungskörper ein ringförmiger Luftführungskörper (71, 72) ist und der Kanal für einem Wärmeaustausch unterzogene Luft ein ringförmiger Kanal für einem Wärmeaustausch unterzogene Luft (15, 16, 17) ist.
  3. Luftzufuhrverfahren für eine vertikale Klimaanlage nach Anspruch 2, wobei der ringförmige Luftführungskörper von hinten nach vorn wenigstens teilweise allmählich kleiner wird.
  4. Luftzufuhrverfahren für eine vertikale Klimaanlage nach Anspruch 3, wobei der ringförmige Luftführungskörper eine flächige Konstruktion hat und mehrere ringförmige Luftführungskörper (71, 72) nacheinander von vorn nach hinten zu einer geschachtelten zylindrischen Konstruktion angeordnet sind oder wobei eine Radialschnittumrisslinie des ringförmigen Luftführungskörpers eine Kurve mit veränderlichem Krümmungsradius ist.
  5. Luftzufuhrverfahren für eine vertikale Klimaanlage nach einem der Ansprüche 2 bis 4, wobei der Luftführungskörper am vorderen Ende ein ringförmiger Luftführungskörper am vorderen Ende (11) ist und ein Mindestinnendurchmesser des ringförmigen Luftführungskörpers am vorderen Ende kleiner als ein Mindestinnendurchmesser aller anderen ringförmigen Luftführungskörper (12, 13, 14) ist.
  6. Luftzufuhrverfahren für eine vertikale Klimaanlage nach Anspruch 5, wobei der Mindestinnendurchmesser des ringförmigen Luftführungskörpers am vorderen Ende nicht weniger als das 0,95-Fache des Mindestinnendurchmessers aller anderen ringförmigen Luftführungskörper ist.
  7. Luftzufuhrverfahren für eine vertikale Klimaanlage nach Anspruch 2, wobei die Luftzufuhrvorrichtung vier ringförmige Luftführungskörper umfasst.
  8. Luftzufuhrverfahren für eine vertikale Klimaanlage nach Anspruch 7, wobei ein Innendurchmesser des ringförmigen Luftführungskörpers am vorderen Ende in den vier ringförmigen Luftführungskörpern zunächst allmählich kleiner wird und sich dann allmählich von einem Lufteinlass des Luftführungskörpers zu einem Luftauslass des Luftführungskörpers aufweitet und ein minimaler Einzugsteil des Innendurchmessers in der Mitte ausgebildet ist, ein ringförmiger Kanal für einem Wärmeaustausch unterzogene Luft zwischen dem verkleinerten Teil des Innendurchmessers des ringförmigen Luftführungskörpers am vorderen Ende und einem mit dem ringförmigen Luftführungskörper am vorderen Ende benachbarten ringförmigen Luftführungskörper ausgebildet ist und, mit Ausnahme des ringförmigen Luftführungskörpers am vorderen Ende, ein Innendurchmesser der anderen drei ringförmigen Lüftungskörper von einem Lufteinlass zu einem Luftauslass allmählich kleiner wird.
  9. Verfahren zur vertikalen Klimaanlagen-Luftzufuhr nach Anspruch 1, wobei der Durchsatz der keinem Wärmeaustausch unterzogenen Luft das 0,15- bis 0,35-Fache des Durchsatzes der einem Wärmeaustausch unterzogenen Luft ist.
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CN104976684A (zh) * 2014-04-14 2015-10-14 中山市雅西环保科技有限公司 一种能卷吸气流的空调
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