CN113566348B - A full heat exchanger and new fan for new fan - Google Patents

A full heat exchanger and new fan for new fan Download PDF

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Publication number
CN113566348B
CN113566348B CN202110736242.7A CN202110736242A CN113566348B CN 113566348 B CN113566348 B CN 113566348B CN 202110736242 A CN202110736242 A CN 202110736242A CN 113566348 B CN113566348 B CN 113566348B
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China
Prior art keywords
fresh air
total heat
heat exchange
ventilation opening
exchange core
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CN202110736242.7A
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Chinese (zh)
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CN113566348A (en
Inventor
王洁
夏登枫
吴梦柏
戴九松
张旭东
郑军妹
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.)
Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Priority to CN202110736242.7A priority Critical patent/CN113566348B/en
Publication of CN113566348A publication Critical patent/CN113566348A/en
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • 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
    • 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
    • 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
    • F24F2013/205—Mounting a ventilator fan therein
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a total heat exchanger for a fresh air fan and the fresh air fan, wherein the total heat exchanger comprises a volute, a total heat exchange core, a first fan and a second fan; the total heat exchange core is arranged in the volute and corresponds to the first ventilation opening and the second ventilation opening, and is provided with an indoor air channel for conveying indoor air through the second ventilation opening and the first ventilation opening, and the side part of the total heat exchange core is provided with a fresh air channel for allowing fresh air to enter the volute; the first fan is used for exhausting indoor air to the outside through the second air vent, the indoor air duct and the first air vent; the second fan is used for enabling outdoor fresh air to enter the room through the first ventilation opening, the fresh air inlet, the fresh air duct, the volute and the fresh air outlet. The invention integrates the total heat exchange core body and the fan together, and the total heat exchange core body separates the indoor air channel and the fresh air channel, thereby reducing the whole volume, shortening the air exchange stroke and being beneficial to improving the air heat exchange efficiency.

Description

Full heat exchanger for fresh air machine and fresh air machine
Technical Field
The invention relates to the technical field of fresh air systems, in particular to a total heat exchanger for a fresh air machine and the fresh air machine.
Background
The introduction of fresh air is a common method for improving the quality of indoor air, but the introduction of fresh air brings extra heat and humidity load to the indoor space, which increases the energy consumption of the air conditioner, so that partial heat and humidity can be recovered by adopting the form of indoor air exhaust and fresh air total heat exchange, thereby realizing the effect of energy saving.
The total heat exchanger is a device for realizing indoor air exhaust and outdoor fresh air total heat exchange, and the common total heat exchanger structure at present comprises a fresh air fan, an air exhaust fan, a total heat exchange core, a fresh air exhaust flow channel and the like. The fresh air fan and the exhaust fan both adopt centrifugal fans, the total heat exchange core body is formed by stacking multiple layers of total heat exchange membranes at intervals to form a fresh air and exhaust flow channel, and the whole form is cuboid or hexahedron. For example, in a chinese patent "a new air cleaner" with application number 201920524882.X, a similar total heat exchange core is used.
However, the existing total heat exchange core body is very large in size, occupies a large amount of space of the fresh air fan, and causes the fresh air fan to be large in size and cannot be small; in addition, a certain distance exists between the air blown out by the fan and entering the core body of the total heat exchanger, a plurality of corners exist in a flow channel, energy loss can be generated, air distribution in the core body of the total heat exchanger is uneven, and the total heat exchange efficiency is influenced.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a total heat exchanger for a fresh air machine, which integrates a fan and a total heat exchange core into a whole so as to reduce the whole volume, shorten the fresh air stroke and improve the fresh air fluency so as to improve the heat exchange efficiency, aiming at the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide a new wind turbine to which the total heat exchanger is applied, in view of the current state of the prior art.
The technical scheme adopted by the invention for solving at least one technical problem is as follows:
an enthalpy exchanger for a fresh air fan, comprising:
the volute is provided with a front cover plate, a rear cover plate and a surrounding plate, wherein the front cover plate and the rear cover plate are arranged at intervals in the front-back direction, the surrounding plate is enclosed between the edge of the front cover plate and the edge of the rear cover plate, a first ventilation opening is formed in the front cover plate, correspondingly, a second ventilation opening is formed in the rear cover plate, and a fresh air outlet is formed in the top of the volute;
the total heat exchange core body is arranged in the volute, corresponds to the first ventilation opening and the second ventilation opening, and is provided with an indoor air channel for conveying indoor air through the second ventilation opening and the first ventilation opening; the middle part of the total heat exchange core is provided with a fresh air inlet corresponding to the first vent, and the side part of the total heat exchange core is provided with a fresh air duct for fresh air to enter the volute;
the first fan is arranged on the rear side of the rear cover plate and used for exhausting indoor air to the outside through the second air vent, the indoor air duct and the first air vent; and
and the second fan is arranged in the volute and used for enabling outdoor fresh air to enter the room through the first vent, the fresh air inlet, the fresh air duct, the volute and the fresh air outlet.
Preferably, the total heat exchange core is shaped like a circular ring, and the indoor air duct includes a plurality of first vent holes penetrating in the axial direction of the total heat exchange core. The fresh air duct comprises a plurality of second ventilation holes which radially penetrate along the total heat exchange core body. And the inner walls of the first ventilation hole and the second ventilation hole are loaded with full heat exchange membrane materials for realizing heat exchange. Through the design, the annular structure of the total heat exchange core body is respectively provided with the axial first ventilation hole and the radial second ventilation hole, so that the air channel is separated, heat exchange is realized, the space is utilized to the maximum extent, and the integration of dual functions of heat exchange and air exchange is realized.
Preferably, the first vent holes and the second vent holes are arranged at intervals in the circumferential direction of the total heat exchange core. This structure is favorable to improving the heat transfer effect.
Preferably, the width of the first vent hole in the circumferential direction is gradually increased from the inside to the outside in the radial direction. This structure is favorable to improving the air-out effect, and then improves exchange efficiency.
Preferably, the total heat exchange core is inserted into the volute casing through the first ventilation opening, the rear end of the total heat exchange core abuts against the rear cover plate, and a lap edge capable of being overlapped on the outer edge of the front cover plate is formed at the edge of the front end face of the total heat exchange core. The structure is convenient to assemble, and avoids the problem of air mixing in the axial direction and the radial direction.
Preferably, the second fan include second motor, centrifugal impeller, the centrifugal impeller can locate the total heat exchange core inboard with rotating, the inner that second vent hole was pressed close to centrifugal impeller's outward flange arranges, the second motor is installed on the back shroud and is used for driving centrifugal impeller to rotate. This structure is advantageous for improving the exchange efficiency.
Preferably, the first fan includes a first motor and an axial-flow impeller, the first motor is mounted on the rear cover plate and arranged corresponding to the first motor, and the axial-flow impeller is connected to an output shaft of the first motor arranged towards the rear.
Preferably, a flow guide sleeve arranged corresponding to the second ventilation opening is arranged at the outer edge of the axial flow impeller. This structure is favorable to improving the discharge efficiency of indoor wind.
The utility model provides an use new fan that has above-mentioned full heat exchanger, includes the casing, full heat exchanger locates in the casing, it has the opening of connecting the new trend pipeline to open on the first lateral wall of casing, and this opening corresponds full heat exchanger's first vent is arranged, it has the indoor wind import of corresponding second vent to open on the casing second lateral wall, it has the gas outlet of corresponding new trend export to open on the casing roof.
Compared with the prior art, the invention has the advantages that: the invention integrates the total heat exchange core body and the fan together, and the indoor air channel and the fresh air channel are separated by the total heat exchange core body, thereby reducing the whole volume, greatly shortening the air exchange stroke and being beneficial to improving the air fluency and the heat exchange efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a total heat exchanger according to an embodiment of the present invention;
FIG. 2 is a schematic view of the back structure of FIG. 1;
FIG. 3 is a cross-sectional view of an enthalpy exchanger according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a total heat exchange core in an embodiment of the invention; a
FIG. 5 is a cross-sectional view of an all heat exchange core in an embodiment of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 5;
fig. 7 is a schematic view of an installation structure of a new fan in the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 7, the total heat exchanger of the present embodiment is used in a fresh air machine, and includes a volute 1, a total heat exchange core 2, a first fan 3, and a second fan 4.
The volute 1 comprises a front cover plate 11, a rear cover plate 12 and a surrounding plate 13, wherein the front cover plate 11 and the rear cover plate 12 are arranged at intervals in a front-back mode, the surrounding plate 13 surrounds the edge of the front cover plate 11 and the edge of the rear cover plate 12, a first ventilation opening 111 is formed in the front cover plate 11, correspondingly, a second ventilation opening 121 is formed in the rear cover plate 12, and a fresh air outlet 14 is formed in the top of the volute 1. The total heat exchange core 2 is arranged in the volute 1 and corresponds to the first ventilation opening 111 and the second ventilation opening 121, and is provided with an indoor air duct 10 for conveying indoor air through the second ventilation opening 121 and the first ventilation opening 111; the middle part of the total heat exchange core body 2 is provided with a fresh air inlet 21 corresponding to the first ventilation opening 111, and the side part is provided with a fresh air duct 20 for fresh air to enter the volute 1. The first fan 3 is disposed at the rear side of the rear cover 12, and is used for exhausting indoor air to the outside through the second air vent 121, the indoor air duct 10, and the first air vent 111. The second fan 4 is disposed in the volute 1 and is used for making outdoor fresh air enter the room through the first ventilation opening 111, the fresh air inlet 21, the fresh air duct 20, the volute 1 and the fresh air outlet 14.
The total heat exchange core 2 of the present embodiment is formed in an annular shape, and the indoor air duct 10 includes a plurality of first ventilation holes 101 penetrating in the axial direction of the total heat exchange core 2. The fresh air duct 20 includes a plurality of second ventilation holes 201 penetrating in the radial direction of the total heat exchange core 2. All load on first ventilation hole 101, the second ventilation hole 201 inner wall has full heat exchange membrane material for realize the heat transfer. Through the design, the annular structure of the total heat exchange core body 2 is respectively provided with the axial first ventilation hole 101 and the radial second ventilation hole 201, so that the air channel is separated, heat exchange is realized, the space is utilized to the maximum extent, and the integration of double functions of heat exchange and air exchange is realized.
Above-mentioned first ventilation hole 101 and second ventilation hole 201 are arranged at the interval on total heat exchange core 2 circumference, and this structure is favorable to improving the heat transfer effect. First ventilation hole 101 is along radially increasing gradually from inside to outside in ascending width in circumference, and this structure is favorable to improving the air-out effect, and then improves exchange efficiency.
For the convenience of assembly, the total heat exchange core 2 is inserted into the spiral case 1 through the first ventilation opening 111, and the rear end of the total heat exchange core 2 abuts against the rear cover plate 12, and a joint edge 22 capable of being overlapped on the outer edge of the front cover plate 11 is formed at the edge of the front end surface of the total heat exchange core 2. The structure is convenient to assemble, and avoids the problem of mixed wind in the axial direction and the radial direction.
The second fan 4 of the present embodiment includes a second motor 41, a centrifugal impeller 42, the centrifugal impeller 42 is rotatably disposed inside the total heat exchange core 2, an outer edge of the centrifugal impeller 42 is disposed adjacent to an inner end of the second ventilation hole 201, and the second motor 41 is mounted on the rear cover plate 12 and is used for driving the centrifugal impeller 42 to rotate. The first fan 3 includes a first motor 31 and an axial-flow impeller 32, the first motor 31 is mounted on the rear cover plate 12 and is disposed corresponding to the first motor 31, and the axial-flow impeller 32 is connected to an output shaft of the first motor 31 disposed toward the rear. The outer edge of the axial flow impeller 32 is provided with a flow guide sleeve 33 arranged corresponding to the second ventilation opening 121, which is beneficial to improving the discharge efficiency of indoor air.
It should be noted that, the first motor and the second motor of the present embodiment may also be an integrated structure, that is, one driving source is provided, and the driving source has dual driving shafts, which are respectively used as power output shafts of the first motor and the second motor.
The new fan with the above-mentioned total heat exchanger applied in this embodiment includes a casing 5, the casing 5 is hung on a wall 6, the total heat exchanger is disposed in the casing 5, an opening 51 connected with the fresh air pipeline 7 is opened on a first side wall of the casing 5, the opening 51 is arranged corresponding to a first ventilation opening 111 of the total heat exchanger, an indoor air inlet 52 corresponding to a second ventilation opening 121 is opened on a second side wall of the casing 5, and an air outlet 53 corresponding to a fresh air outlet 14 is opened on a top wall of the casing 5.
This embodiment is in the same place total heat exchange core 2 and fan integration, separates indoor wind channel 10 and new trend wind channel 20 through total heat exchange core 2 to reduce whole volume, shortened the exchange stroke of wind greatly, be favorable to improving the smoothness degree and the heat exchange efficiency of wind.
Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity.

Claims (7)

1. A total heat exchanger for a fresh air machine, comprising:
the volute (1) is provided with a front cover plate (11) and a rear cover plate (12) which are arranged at intervals in the front-rear direction, and a surrounding plate (13) which surrounds the edge of the front cover plate (11) and the edge of the rear cover plate (12), the front cover plate (11) is provided with a first ventilation opening (111), correspondingly, the rear cover plate (12) is provided with a second ventilation opening (121), and the top of the volute (1) is provided with a fresh air outlet (14);
the total heat exchange core body (2) is arranged in the volute (1), arranged corresponding to the first ventilation opening (111) and the second ventilation opening (121), and provided with an indoor air channel (10) for conveying indoor air through the second ventilation opening (121) and the first ventilation opening (111); the middle part of the total heat exchange core body (2) is provided with a fresh air inlet (21) corresponding to the first ventilation opening (111), and the side part of the total heat exchange core body is provided with a fresh air duct (20) for fresh air to enter the volute (1);
the first fan (3) is arranged on the rear side of the rear cover plate (12) and used for discharging indoor air to the outside through the second ventilation opening (121), the indoor air duct (10) and the first ventilation opening (111); and
the second fan (4) is arranged in the volute (1) and is used for enabling outdoor fresh air to enter the indoor space through the first ventilation opening (111), the fresh air inlet (21), the fresh air duct (20), the volute (1) and the fresh air outlet (14);
the full heat exchange core (2) is shaped like a circular ring, and the indoor air duct (10) comprises a plurality of first ventilation holes (101) which axially penetrate through the full heat exchange core (2);
the fresh air duct (20) comprises a plurality of second ventilation holes (201) which penetrate through the full heat exchange core body (2) in the radial direction;
the first ventilation holes (101) and the second ventilation holes (201) are arranged at intervals in the circumferential direction of the total heat exchange core body (2).
2. The total heat exchanger for a fresh air machine according to claim 1, wherein: the width of the first vent hole (101) in the circumferential direction is gradually increased from the inside to the outside in the radial direction.
3. The total heat exchanger for a fresh air machine according to claim 1 or 2, wherein: the full heat exchange core (2) passes through the first ventilation opening (111) and is inserted in the volute (1) and the rear end of the full heat exchange core is abutted against the rear cover plate (12), and the edge of the front end face of the full heat exchange core (2) is provided with a lap joint (22) which can be overlapped at the outer edge of the front cover plate (11).
4. The total heat exchanger for a fresh air machine according to claim 1 or 2, wherein: second fan (4) include second motor (41), centrifugal impeller (42) can locate full heat exchange core (2) inboard with rotating, the inner of second venthole (201) is pressed close to the outward flange of centrifugal impeller (42) arranges, second motor (41) are installed on back shroud (12) and are used for driving centrifugal impeller (42) to rotate.
5. The total heat exchanger for a fresh air machine according to claim 4, wherein: the first fan (3) comprises a first motor (31) and an axial flow impeller (32), the first motor (31) is installed on the rear cover plate (12) and arranged corresponding to the first motor (31), and the axial flow impeller (32) is connected to an output shaft of the first motor (31) and arranged towards the rear.
6. The total heat exchanger for a fresh air machine of claim 5, wherein: and a flow guide sleeve (33) arranged corresponding to the second ventilation opening (121) is arranged at the outer edge of the axial-flow impeller (32).
7. A new fan using the total heat exchanger according to any one of claims 1 to 6, comprising a housing (5), characterized in that: the total heat exchanger is arranged in a shell (5), an opening (51) connected with a fresh air pipeline (7) is formed in a first side wall of the shell (5), the opening (51) corresponds to a first ventilation opening (111) of the total heat exchanger and is arranged, an indoor air inlet (52) corresponding to a second ventilation opening (121) is formed in a second side wall of the shell (5), and an air outlet (53) corresponding to a fresh air outlet (14) is formed in the top wall of the shell (5).
CN202110736242.7A 2021-06-30 2021-06-30 A full heat exchanger and new fan for new fan Active CN113566348B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110736242.7A CN113566348B (en) 2021-06-30 2021-06-30 A full heat exchanger and new fan for new fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110736242.7A CN113566348B (en) 2021-06-30 2021-06-30 A full heat exchanger and new fan for new fan

Publications (2)

Publication Number Publication Date
CN113566348A CN113566348A (en) 2021-10-29
CN113566348B true CN113566348B (en) 2022-10-21

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3051215B1 (en) * 2014-08-29 2018-07-18 Qingdao Haier Air Conditioner Gen Corp., Ltd. Wall-mounted air conditioner indoor unit
CN106642640B (en) * 2015-10-28 2019-07-05 青岛海尔空调电子有限公司 Full-heat-exchange equipment
CN106642498B (en) * 2015-10-28 2019-07-02 青岛海尔空调电子有限公司 Full-heat-exchange equipment
CN206637804U (en) * 2017-03-29 2017-11-14 华北理工大学 A kind of tubular type Total heat exchange core body
CN210740638U (en) * 2019-08-02 2020-06-12 武汉世纪欧亚孵化器有限公司 Fresh air total heat exchanger

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