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KR-20260000591-U - HEAT RECOVERY AIR HANDLING UNIT

KR20260000591UKR 20260000591 UKR20260000591 UKR 20260000591UKR-20260000591-U

Abstract

The present invention relates to ventilation equipment, particularly a heat recovery ventilation device, which can be installed in residential and special-purpose buildings. According to the design, a heat recovery ventilation device has been created that ensures a high level of heat exchange efficiency and high air exchange performance. This device comprises an inner module, an outer module, a central module with a plate heat recovery unit, fans, an inlet chamber of the exhaust duct, an outlet chamber of the exhaust duct, an inlet chamber of the intake duct, an outlet chamber of the intake duct, and partitions between the inlet and outlet chambers of the exhaust and intake ducts, respectively. Here, a counterflow or crossflow type heat recovery unit is used as the plate heat recovery unit, and the fans create opposing airflows. One fan may be located in the intake chamber of the intake duct and the other in the exhaust chamber of the exhaust duct; one fan may be in the exhaust chamber and the other in the intake chamber; one fan may be in the exhaust chamber and the other in the intake chamber; or one fan may be in the intake chamber and the other in the exhaust chamber. This device also includes a condensate removal system.

Inventors

  • 클라피셰브스키 올렉산드르 스타니슬라보비치
  • 쵸미크 아나톨리 미하일로비치
  • 키슈추크 빅토르 파블로비치

Assignees

  • 리미티드 라이어빌리티 컴퍼니 벤틸레이션 시스템즈

Dates

Publication Date
20260507
Application Date
20251017
Priority Date
20241029

Claims (15)

  1. The heat recovery ventilation device (1) comprises, respectively, an inner module (2); an outer module (4); a central module (3) having a plate heat recovery unit (5); fans (11) (26); an inlet chamber (6) of an exhaust duct; an outlet chamber (7) of an exhaust duct; an inlet chamber (8) of an intake duct; an outlet chamber (9) of an intake duct; and a partition (10) between the inlet and outlet chambers of the exhaust and intake ducts. The above plate heat recovery unit (5) is a counter-flow or cross-flow type heat recovery unit, and The above fans (11)(26) form opposing airflows, The above fan (11) is located in the inlet chamber (8) of the intake duct and the above fan (26) is located in the outlet chamber (7) of the exhaust duct, The above fan (26) is located in the inlet chamber (6) of the exhaust duct and the above fan (11) is located in the outlet chamber (9) of the intake duct, The above fan (26) is located in the inlet chamber (6) of the exhaust duct and the above fan (11) is located in the inlet chamber (8) of the intake duct, A heat recovery ventilation device (1) comprising a fan (11) located in the outlet chamber (9) of the intake duct and a fan (26) located in the outlet chamber (7) of the exhaust duct, and further comprising a condensate removal system.
  2. A heat recovery ventilation device (1) according to claim 1, wherein the fans (11)(26) are combined into a fan module (20).
  3. A heat recovery ventilation device according to claim 1, wherein the inlet chamber (8) of the intake duct includes a heater (14) for preheating air.
  4. A heat recovery ventilation device according to claim 1, wherein the exhaust chamber (9) of the intake duct includes a heater (15) for post-heating the air.
  5. A heat recovery ventilation device according to claim 1, wherein the fans (11)(26) have a mechanical damper (12) and/or a gravity valve (13).
  6. A heat recovery ventilation device according to claim 1, wherein the housing of the central module (3) has an external thermal insulation shell (17).
  7. A heat recovery ventilation device according to claim 1, wherein the condensate removal system comprises a tank (19) for collecting condensate and a channel (18) for removing condensate to the outside of the heat recovery ventilation device (1).
  8. A heat recovery ventilation device according to claim 1, wherein the condensate removal system includes a channel (18) for removing condensate to the outside of the heat recovery ventilation device (1).
  9. A heat recovery ventilation device according to claim 1, wherein the condensate removal system includes a pump (28) that removes condensate to the outside of the heat recovery ventilation device (1).
  10. A heat recovery ventilation device according to claim 1, wherein the condensate removal system comprises a pump (28) and a channel (18) for removing condensate to the outside of the heat recovery ventilation device (1).
  11. A heat recovery ventilation device according to claim 1, wherein the condensate removal system comprises a container (19) having an ultrasonic evaporator (27).
  12. A heat recovery ventilation device (1) according to claim 1, wherein filters (16) are installed in the inlet chamber (6) of the exhaust duct and the inlet chamber (8) of the intake duct.
  13. A heat recovery ventilation device according to claim 1, wherein the inner module (2) has an inner damper (23) and/or inner intake (21) and inner exhaust (22) grilles, and the outer module (4) has outer intake (24) and outer exhaust (25) grilles.
  14. A heat recovery ventilation device according to claim 1, wherein the outer module (4) has outer dampers (29) and/or outer intake (24) and outer exhaust (25) grilles, and the inner module (2) has inner intake (21) and inner exhaust (22) grilles.
  15. A heat recovery ventilation device according to claim 1, wherein the fan (11) and/or fan (26) are positioned at an angle with respect to the conditional axis of symmetry of the heat recovery ventilation device (1).

Description

Heat Recovery Air Handling Unit The present invention relates to ventilation equipment, particularly a heat recovery ventilation device, which can be installed in residential and special-purpose buildings. At the current level of technology, various technical solutions, forms, and structures designed for natural ventilation in residential and commercial buildings have been disclosed. Efforts to find optimal ventilation system solutions are motivated by the goal of designing buildings in a way that ensures maximum energy efficiency. However, increasing a building's energy efficiency factor proportionally reduces the natural self-regulating function of the indoor climate. In other words, significant indoor air dryness occurs in such buildings due to the use of central heating, the operation of numerous household appliances, and other modern technological factors. This ultimately creates conditions favorable for the development of allergic diseases and respiratory complications or illnesses. In spring and summer, energy-efficient buildings fail to effectively remove excessive moisture, hindering natural air circulation within the building and thus creating conditions favorable for the growth of mold and harmful microorganisms. The above statements have long been known. Therefore, many developed countries recommend frequent ventilation of buildings by medical institutions. Most countries implement regulations governing air exchange systems. Ventilation is primarily achieved by opening windows to enable natural air circulation within a building. However, ventilation solely through opening windows causes significant inconvenience. In particular, open windows make rooms considerably colder in winter due to their surface area, and cause overheating in summer. Consequently, this leads to substantial energy consumption required to maintain acceptable and comfortable working and living conditions. Therefore, continuous efforts are being made to develop and improve ventilation systems. A known heat recovery ventilation device [Ukrainian Patent No. 146223 F24F7/00, F28F13/14, January 27, 2021] comprises a heat recovery unit having an air duct, a fan, and a heat exchanger, which are interconnected and installed on the wall between the outer and inner surfaces of a room. Two straight concentric cylinders are installed in the opening between the outer and inner surfaces of the room, and an I-shaped (in cross-section) corrugated heat exchanger is fixed to the outer surface of the inner cylinder between them. Additionally, an outer fan and an inner fan are installed on the inner surfaces of the cylinders so as to face each other. The device opening is fitted with corresponding outer and inner covers, and the inner cover has an internal air exhaust slot with an air supply grille and an air diffuser. The outer cover further has a condensate exhaust opening extending beyond the plane of the outer wall surface, an air intake grille, and a corresponding grille for internal air exhaust. A disadvantage of this heat recovery ventilation system is its low air heat exchange efficiency. As air passes along the heat exchange surface of the corrugated heat exchanger, the presence of cuts in the heat exchanger troughs reduces the heat exchange area. This low level of air exchange performance is caused by the unbalanced airflow within the device. Another disadvantage is the lack of resistance to wind loads. Since the external module is open, it does not provide wind protection for the exhaust duct and poses a risk of the device freezing at sub-zero temperatures. It is structurally impossible to install full-scale heater and filter elements, and since the power supply is located in the room module, additional heating is consequently not provided by the heat recovery unit. The design of the heat exchanger causes excessive condensation and leads to the possibility of the unit freezing. A known heat recovery ventilation device [Invention Application No. EP4417886A1 F24F12/00; F24F7/08; F28D21/00; F28F9/02; August 21, 2024] is designed to be installed on the exterior wall of a building. The device comprises an internal module and an adjacent heat exchange module, the heat exchange module being composed of a cylindrical corrugated heat exchanger having a plurality of heat exchange air channels arranged along the axis of symmetry of the heat exchanger. These air channels have the same cross-section and are adjacent to each other to form a continuous corrugated volume of heat exchange segments. A first separator plate and a second separator plate are provided to separate and direct exhaust and supply air flows in opposite directions within the heat exchange air duct. The first and second separator plates are attached to both end faces of the heat exchanger and are installed along the axis of symmetry of the heat exchanger. A first fan and a second fan are installed with housings, respectively, adjacent to the first and second separator plates and