Flat total-heat heat exchange core body for fresh air ventilator

A fresh air ventilator and flat panel technology, which can be used in household heating, household heating, indirect heat exchangers, etc., can solve the problem of restricting the development and application of fresh air ventilators, cross-flow heat transfer is not as good as counter-flow, and restricts heat transfer Core efficiency and other issues, to achieve the effect of simple structure, lower thermal resistance of dirt, and less dirt

Inactive Publication Date: 2015-05-20
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the traditional fresh air ventilators use a plate-fin cross-flow heat exchange core with corrugated plates or zigzag support structures. Although the structure of the heat exchange core can be kept stable and the heat exchange time can be appropriately extended, the pressure loss is relatively low. The energy consumption of the fan is high, and the heat exchange form of the cross flow is far inferior to that of the counter flow. In addition, the traditional paper material also limits the improvement of the efficiency of the heat exchange core. Therefore, this type of heat exchange core has low heat exchange efficiency and resistance. Problems such as large pressure drop, large volume, and difficult maintenance limit the development and application of fresh air ventilators

Method used

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  • Flat total-heat heat exchange core body for fresh air ventilator
  • Flat total-heat heat exchange core body for fresh air ventilator
  • Flat total-heat heat exchange core body for fresh air ventilator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] See attached figure 1 , 2 , 3, a flat full-heat heat exchange core body for a fresh air ventilator, including a top plate 1, a bottom plate 5, and a heat exchange unit 3, and the heat exchange unit 3 is composed of a heat exchange film 4, a support frame 2, a rectifying plate 6, The deflector 7 is composed of the supporting frame 2 in a rectangular shape, the heat exchange membrane 4 is fixedly connected with the supporting frame 2 to form the bottom surface of the supporting frame 2, and an opening is provided at each diagonal position of the supporting frame 2 8. The openings 8 are respectively arranged on two parallel sides of the supporting frame 2, one of which is an air inlet, and the other opening is an air outlet;

[0042] Two rectifying plates 6 are arranged between the air inlet and the air outlet, the rectifying plates 6 are perpendicular to the heat exchange membrane 4, and the two ends are respectively parallel to the two sides of the supporting frame 2 wh...

Embodiment 2

[0052] See attached Figure 4 , in this embodiment, the rest of the structure is the same as in Embodiment 1, except that the surface of the rectifying plate is provided with 5 strip-shaped holes, and the strip-shaped holes are evenly arranged in the height direction of the rectifying plate, and the length of the strip-shaped holes is arranged on the surface of the rectifying plate. The direction is provided with a bar-shaped baffle perpendicular to the surface of the rectifying plate and whose number matches the bar-shaped hole. The height of the bar-shaped hole is 5mm, the width of the bar-shaped baffle is 5mm, and the length of the bar-shaped hole and the bar-shaped baffle same.

Embodiment 3

[0054] See attached Figure 4 , in this embodiment, the rest of the structure is the same as in Embodiment 1, except that the surface of the rectifying plate is provided with 8 square holes, the holes of the square holes are directed in the same direction, and are evenly arranged along the length direction of the rectifying plate. There are arc-shaped baffles whose number matches the square holes. The width of the square holes is 25mm, and the height is basically consistent with the height of the heat exchange unit. The arc-shaped baffles are arranged tangentially to the sides of the square holes. The arc diameter is 20mm and the arc center angle is 90°.

[0055] When assembling the present invention, firstly prepare the composite heat exchange film, and then cut it into several sheets according to the length and width of the flat total heat exchange core body for the fresh air ventilator, such as figure 2 As shown, then the support frame, rectifying plate, and deflector are...

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PUM

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Abstract

The invention discloses a flat total-heat heat exchange core body for a fresh air ventilator. The flat total-heat heat exchange core body comprises a top plate, a bottom plate, and heat exchange units. The flat total-heat heat exchange core body is characterized in that each heat exchange unit is composed of a heat exchange film, a supporting frame, a rectifying plate and a guide plate; each supporting frame is rectangular; each heat exchange film and each supporting frame are fixedly connected for forming a bottom surface of each supporting frame; an opening is arranged in each of diagonal positions of each supporting frame, two rectifying plates are arranged among the openings, and two ends of the rectifying plates are respectively and fixedly connected with two sides parallel to the supporting frame where the openings are located; each guide plate is arc-shaped, one end of each guide plate is fixedly connected with one sides of the openings, and the other end of each guide plate is fixedly connected with the rectifying plates; and at least two heat exchange units are arranged between the top plate and the bottom plate in a stacking mode, air inlets and air outlets of two adjacent heat exchange units are opposite in position, and the air inlets and the air outlets of two alternating heat exchange units are identical in position. The flat total-heat heat exchange core body is excellent in heat and mass transfer property, high in efficiency, small in resistance loss and size and low in cost, and be integrated inside buildings conveniently.

Description

technical field [0001] The invention relates to a flat total heat exchange core body for a fresh air ventilator. The invention belongs to the field of heat exchange equipment preparation. technical background [0002] Most of the traditional fresh air ventilators use a plate-fin cross-flow heat exchange core with corrugated plates or zigzag support structures. Although the structure of the heat exchange core can be kept stable and the heat exchange time can be appropriately extended, the pressure loss is relatively low. The energy consumption of the fan is high, and the heat exchange form of the cross flow is far inferior to that of the counter flow. In addition, the traditional paper material also limits the improvement of the efficiency of the heat exchange core. Therefore, this type of heat exchange core has low heat exchange efficiency and resistance. Problems such as large pressure drop, large volume, and difficult maintenance limit the development and application of f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F13/30F24F13/28F28D9/00F28F9/22F28F21/00
Inventor 段飞廖胜明曹小林饶政华谌盈盈
Owner CENT SOUTH UNIV
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