Ventilation energy-saving system of green building

Abstract

The invention discloses a green building ventilation energy-saving system which comprises a heat exchange shell, an air inducing mechanism, a flow guide mechanism and a heat exchange mechanism, a bypass pipe is placed at the lower end of the heat exchange shell, a transition pipe is arranged on the right side of the heat exchange shell, the air inducing mechanism comprises an air cap, a filter screen, a connecting frame and an air baffle, and the air cap is arranged at the upper end of the transition pipe; according to the ventilation energy-saving system of the green building, the air cap capable of passively and accurately feeding air is arranged, and the ventilation energy-saving system is matched with a flow guide mechanism integrated with the air cap, so that building ventilation can be rapidly and efficiently carried out; according to the air conditioner, the filter element is convenient to maintain while the operation efficiency of the fan is reduced, meanwhile, the heat exchange core body can be lifted by the bearing plate to avoid falling, the heat exchange core body can be disassembled and assembled more thoroughly, and therefore maintenance is more thorough, and the situation that the heat exchange core body is not cleaned in place and the heat exchange efficiency is affected is avoided.

Description

Technical Field

[0001] This invention relates to the field of green building ventilation technology, specifically to a green building ventilation and energy-saving system. Background Technology

[0002] The core of green building is a concept that pursues harmonious coexistence between people, buildings, and nature. It aims to maximize resource conservation and environmental protection throughout the entire lifecycle of a building, from design and construction to use and even demolition, thereby creating healthy, comfortable, and efficient indoor spaces. Ventilation systems are an essential part of green buildings. Existing building ventilation systems typically consist of heat exchangers, supply and exhaust fans, and ventilation ducts. The supply and exhaust fans are located on the front and rear sides inside the heat exchanger, respectively. Both ends of the ventilation ducts are equipped with filters. The ventilation system draws in fresh outdoor air and delivers it indoors, then exhausts stale outdoor air, achieving... The building's ventilation system uses heat exchangers containing heat exchange modules, typically aluminum heat exchange cores. These cores are composed of stacked hollow heat exchange plates, each with corrugated plates to increase the heat exchange area. The overall shape is usually square, with each plate having openings on only two opposite sides. The openings of adjacent plates are staggered, forming an X-shaped flow channel. Fresh outdoor air and stale indoor air exchange heat through the heat exchange plates as they flow through the core. In summer, when outdoor air temperatures are high and indoor air is cooled by air conditioning, the outdoor air temperature drops significantly after heat exchange. In winter, the pressure on indoor air conditioning is reduced, while in winter the pressure is reduced. Some ventilation systems also have bypass ducts for use in spring and autumn when temperatures are suitable. In spring and autumn, the temperature difference between the inside and outside of the building is not significant. By switching the bypass duct through an electric diverter, the air does not need to flow through the heat exchanger, which can extend the service life of the heat exchanger. When traditional ventilation systems are working, they rely on the continuous operation of the supply fan to actively draw outdoor air from the air inlet, and then pass through the filter and heat exchanger to enter the room. This requires the fan to operate at high power. After adding the bypass duct, fans and filters need to be installed at both the bypass duct and the heat exchanger, requiring four sets of fans. The traditional heat exchanger system, including filters, is inconvenient to maintain. After prolonged use, contaminants easily accumulate on the surface of the heat exchange core, affecting both air quality and heat exchange efficiency, leading to low heat exchange efficiency and high indoor air conditioning pressure. Regular disassembly and maintenance are required, but this involves removing the heat exchange core from below for cleaning. The core is bolted to the heat exchanger; if not properly supported after loosening the bolts, it can detach, posing a safety hazard. Disassembly and cleaning can only be done by separating the core into individual heat exchange plates, which may not be thoroughly cleaned, further impacting subsequent heat exchange efficiency. Therefore, we propose a green building ventilation and energy-saving system. Summary of the Invention

[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a green building ventilation and energy-saving system. This system features a passively precise air intake hood, combined with an integrated airflow guiding mechanism, enabling rapid and efficient building ventilation. This reduces fan operating efficiency and facilitates filter maintenance. Furthermore, the heat exchange core is supported by a bearing plate to prevent detachment. The heat exchange core itself can be disassembled and reassembled more thoroughly, resulting in more complete maintenance and preventing inadequate cleaning that could affect heat exchange efficiency. This effectively solves the problems in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a ventilation and energy-saving system for green buildings, comprising a heat exchange shell, an air intake mechanism, a flow guiding mechanism, and a heat exchange mechanism; Heat exchange shell: A bypass pipe is placed at its lower end, and a transition pipe is provided on the right side of the heat exchange shell; Air intake mechanism: It includes a wind cap, a filter screen, a connecting frame and a wind baffle. The wind cap is set at the upper end of the transition pipe, the filter screen is set at the four corners of the middle of the outer surface of the wind cap, the connecting frame is rotatably connected to the middle of the inside of the wind cap, and the wind baffle is set on the front side of the outer surface of the connecting frame. The outer surface of the wind baffle is in contact with the inner wall of the wind cap. Flow guiding mechanism: It is located at the upper end of the heat exchange shell; Heat exchange mechanism: Located inside the heat exchange shell, it features a wind cap for passive and precise air intake. Combined with an integrated flow guiding mechanism, it enables rapid and efficient building ventilation, reducing fan operating efficiency and facilitating filter maintenance. Furthermore, the heat exchange core is supported by a bearing plate to prevent detachment. The heat exchange core itself can be disassembled and reassembled more thoroughly, allowing for more complete maintenance and preventing inadequate cleaning that could affect heat exchange efficiency.

[0005] Furthermore, the air intake mechanism also includes a motor, a protective shell, and a wind direction sensor. The motor is located at the upper middle of the wind cap, and its input end is electrically connected to the output end of an external controller. The lower end of the motor's output shaft is fixedly connected to the upper end of the connecting frame. The protective shell is located in the middle of the outer surface of the wind cap, and the motor is located inside the protective shell. The wind direction sensor is located in the upper middle of the protective shell and is bidirectionally electrically connected to the external controller, providing a driving effect for the deflection of the wind deflector. Combined with the wind direction detection of the wind direction sensor, precise passive air intake can be achieved.

[0006] Furthermore, the airflow guiding mechanism includes a filter housing, a filter element, a fan, and a maintenance plate. The filter housing is placed at the upper end of the heat exchange shell, the filter elements are all inserted into the inside right side of the filter housing, the fan is located inside the left side of the filter housing, the input end of the fan is electrically connected to the output end of an external controller, and the maintenance plate is located at the lower middle part of the filter housing, providing a basis for airflow guiding and filtration.

[0007] Furthermore, the airflow guiding mechanism also includes a three-way pipe, an electric diverter valve, and an airflow sensor. The three-way pipe is located on the left side of the filter housing, the electric diverter valve is located in the middle of the inside of the three-way pipe, the input end of the electric diverter valve is electrically connected to the output end of an external controller, and the airflow sensor is located at the front and rear ends of the left side of the inner wall of the three-way pipe. The airflow sensor is bidirectionally electrically connected to the external controller, providing a basis for air diversion and intake volume detection.

[0008] Furthermore, the heat exchange mechanism includes a fixed plate, a main plate, a secondary plate, bending strips, limiting heads, fixing rods, and fixing nuts. The fixed plates are respectively bolted to the front and rear sides of the center inside the heat exchange shell. The main plate and secondary plate are evenly distributed between the two fixed plates. The front end of the foremost secondary plate and the rear end of the last secondary plate are both attached to the side of the fixed plate near the center of the heat exchange shell. The front side of the main plate has evenly distributed bending strips. The rear ends of the secondary plates are attached to the front ends of the vertically adjacent main plate and bending strips. Limiting heads are provided at the four rear corners of the limiting heads. The main board has four limiting grooves at the front corners, and the outer surface of the limiting head is inserted into the inner wall of the longitudinally adjacent limiting groove. There are fixing rods between the four corners of the two fixing plates. The main board, sub-plate and bending strip form a heat exchange plate with grooves at the four corners. The inner wall of the groove is in contact with the outer surface of the longitudinally adjacent fixing rod. The fixing nuts are threaded to the front and rear sides of the outer surface of the fixing rod. The side of the fixing nut near the middle of the fixing rod is in contact with the side of the fixing plate away from the middle of the fixing rod, providing a basis for the quick assembly and disassembly of the heat exchange core itself.

[0009] Furthermore, the heat exchange mechanism also includes a collection assembly, which includes a connecting pipe, limiting posts, and limiting holes. A connecting pipe is provided between the four corners of the two fixed plates. The side of the connecting pipe near the middle of the heat exchange shell is attached to the adjacent end of the heat exchange plate. The limiting posts are respectively set on the left and right sides of the connecting pipe. The limiting holes are all opened at the four corners of the fixed plate near the middle of the heat exchange shell. The outer surface of the limiting posts is inserted into the inner wall of the longitudinally adjacent limiting holes, providing a basis for the connection and sealing of the heat exchange core and the heat exchange shell.

[0010] Furthermore, the collection assembly also includes a collection box and a solenoid valve. The lower middle part of the two connecting pipes below is provided with a collection groove. The collection box is set at the lower end of the collection groove. The solenoid valve is set at the lower end of the outer surface of the collection box. The input end of the solenoid valve is electrically connected to the output end of an external controller, providing a basis for the collection and discharge of condensate.

[0011] Furthermore, the heat exchange mechanism also includes a disassembly and assembly assembly, which includes a support plate, limiting protrusions, and telescopic slide rails. The support plate is slidably connected to the inside of the heat exchange shell. The limiting protrusions are respectively located on the left and right sides of the upper end of the support plate. The lower ends of the fixing plates are all in contact with the upper ends of the support plate. The left and right sides of the lower end of the fixing plate are provided with recesses. The inner walls of the recesses are all in contact with the upper ends of the outer surfaces of the vertically adjacent limiting protrusions. The telescopic slide rails are respectively located in the middle of the front and rear inner walls of the heat exchange shell. The lower ends of the telescopic slide rails are all fixedly connected to the upper ends of the vertically adjacent support plates, providing a basis for the placement and lifting of the heat exchange core.

[0012] Furthermore, the disassembly and assembly assembly also includes a deflection block, connecting rods, fixing posts, fixing holes, and a knob. The deflection block is rotatably connected to the inside center of the support plate, and the fixing posts are slidably connected to the front and rear sides inside the support plate. A connecting rod is provided between the deflection block and the fixing posts. The side of the connecting rod near the center of the support plate is rotatably connected to the side of the support plate away from the center of the support plate, and the side of the connecting rod away from the center of the support plate is rotatably connected to the middle part of the side of the fixing post near the center of the support plate. The fixing holes are respectively opened at the lower middle of the front and rear side walls of the heat exchange shell. The outer surface of the fixing post away from the center of the support plate is inserted into the inner wall of the vertically adjacent fixing hole. The knob is set at the lower end of the deflection block, providing a basis for fixing and releasing the heat exchange core, which can effectively prevent the heat exchange core from falling off during disassembly and assembly.

[0013] Furthermore, the heat exchange shell has connecting grooves on both the left and right sides, and flange joints are provided inside the connecting grooves to provide a basis for connecting the heat exchanger to external pipelines.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The ventilation and energy-saving system of this green building has the following advantages: 1. The wind direction sensor detects the outdoor natural wind direction, and then the motor drives the wind deflector to deflect so that the inner arc surface of the wind deflector is always facing the wind. This allows natural wind to be introduced into the ventilation duct, achieving passive air intake. This allows the air intake fan to operate normally with low power, thereby reducing the energy consumption of the air intake fan.

[0015] 2. The fan and filter element are integrated inside the filter housing. The ventilation duct is switched through a three-way pipe and an electric branch valve. The airflow of the heat exchanger ventilation and bypass pipe ventilation is guided by a set of fans and filter elements, which reduces the distribution of fans and filter elements and facilitates later maintenance.

[0016] 3. Throughout the maintenance process, the disassembly and assembly of the heat exchange core are supported by the bearing plate, which can effectively prevent the heat exchange core from falling off during disassembly and assembly. At the same time, the heat exchange core itself can be quickly and completely disassembled and assembled, and the bending strip can also be cleaned properly, which facilitates the maintenance of the heat exchange efficiency of the heat exchange core and avoids waste caused by insufficient heat exchange efficiency of the heat exchange core during subsequent ventilation and heat exchange. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic cross-sectional view of the air intake mechanism of the present invention; Figure 3 This is a schematic diagram of the structure of the wind deflector of the present invention; Figure 4 This is a schematic cross-sectional view of the flow guiding mechanism of the present invention; Figure 5 This is a schematic cross-sectional view of the heat exchange mechanism of the present invention; Figure 6 This is a schematic cross-sectional view of the disassembly and assembly components of the present invention; Figure 7 This is a schematic diagram of the disassembly and assembly components of the present invention; Figure 8 This is a schematic diagram of the structure of the fixing plate of the present invention; Figure 9 This is a schematic diagram of the structure of the components used in this invention; Figure 10 This is a schematic diagram of the structure of the bending strip of the present invention; Figure 11 This is a schematic diagram of the connecting groove of the present invention.

[0018] In the diagram: 1 Heat exchanger shell, 2 Bypass pipe, 3 Transition pipe, 4 Exhaust fan mechanism, 41 Air cap, 42 Filter screen, 43 Connecting frame, 44 Baffle plate, 45 Motor, 46 Protective shell, 47 Air direction sensor, 5 Flow guiding mechanism, 51 Filter shell, 52 Filter element, 53 Fan, 54 Inspection plate, 55 T-connector, 56 Electric branch damper, 57 Air volume sensor, 6 Heat exchanger mechanism, 61 Fixing plate, 62 Main board, 63 Sub-board, 6 4. Bending strip, 65. Limiting head, 66. Fixing rod, 67. Fixing nut, 68. Collection assembly, 681. Connecting pipe, 682. Limiting post, 683. Limiting hole, 684. Collection box, 685. Solenoid valve, 69. Disassembly assembly, 691. Bearing plate, 692. Limiting protrusion, 693. Telescopic slide rail, 694. Deflection block, 695. Connecting rod, 696. Fixing post, 697. Fixing hole, 698. Knob, 7. Connecting groove, 8. Flange joint. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-11 This embodiment provides a technical solution: a ventilation and energy-saving system for green buildings, including a heat exchange shell 1, an air intake mechanism 4, a flow guiding mechanism 5, and a heat exchange mechanism 6; Heat exchange shell 1: A bypass pipe 2 is placed at its lower end. A detachable base plate is provided at the lower end of the heat exchange shell 1. A transition pipe 3 is provided on the right side of the heat exchange shell 1. A water collection cavity is provided at the lower end of the outer surface of the transition pipe 3. The lower end of the water collection cavity can be connected to an external water pipe for rainwater discharge. A connecting groove 7 is provided on both the left and right sides of the heat exchange shell 1. A flange joint 8 is provided inside the connecting groove 7 to provide a basis for the connection between the heat exchanger and the external pipeline. Air intake mechanism 4: It includes a wind cap 41, a filter screen 42, a connecting frame 43 and a baffle plate 44. The wind cap 41 is set at the upper end of the transition pipe 3. The filter screen 42 is set at the four corners of the middle of the outer surface of the wind cap 41. When maintaining the ventilation pipeline, it is also necessary to clean the filter screen 42 to avoid the attachment of the material. The connecting frame 43 is rotatably connected to the middle of the inside of the wind cap 41. The baffle plate 44 is set on the front side of the outer surface of the connecting frame 43. The baffle plate 44 is semi-circular in shape, and the outer surface of the baffle plate 44 is in contact with the inner wall of the wind cap 41. Flow guiding mechanism 5: It is located at the upper end of heat exchange shell 1; Heat exchange mechanism 6: It is located inside the heat exchange shell 1 and is equipped with a wind cap 41 for passive and precise air intake. Together with the integrated flow guiding mechanism 5, it can quickly and efficiently ventilate the building, reduce the operating efficiency of the fan 53, and facilitate the maintenance of the filter element 52. At the same time, the heat exchange core can be supported by the support plate 691 to prevent it from falling off. The heat exchange core itself can be disassembled and assembled more thoroughly, thus maintaining it more thoroughly and avoiding the situation where the heat exchange core is not cleaned properly, which affects the heat exchange efficiency.

[0021] The wind-inducing mechanism 4 also includes a motor 45, a protective shell 46, and a wind direction sensor 47. The motor 45 is located at the middle of the upper end of the wind cap 41. The input end of the motor 45 is electrically connected to the output end of the external controller. The lower end of the output shaft of the motor 45 is fixedly connected to the upper end of the connecting frame 43. The protective shell 46 is located in the middle of the outer surface of the wind cap 41. The motor 45 is located inside the protective shell 46. The wind direction sensor 47 is located at the middle of the upper end of the protective shell 46. The wind direction sensor 47 is bidirectionally electrically connected to the external controller. The wind direction sensor 47 typically uses a wind vane to rotate with the wind direction to point to the direction of the wind. It drives the internal coding system through a mechanical shaft to convert the rotation into an electrical signal, thereby accurately measuring and outputting the corresponding wind direction angle value, providing a driving effect for the deflection of the wind deflector 44. With the wind direction detection of the wind direction sensor 47, accurate passive air intake can be achieved. The airflow guiding mechanism 5 includes a filter housing 51, a filter element 52, a fan 53, and a maintenance plate 54. The filter housing 51 is placed at the upper end of the heat exchange shell 1. The filter elements 52 are all inserted into the inside right side of the filter housing 51. The fan 53 is located inside the inside left side of the filter housing 51. The input end of the fan 53 is electrically connected to the output end of an external controller. The maintenance plate 54 is located at the lower middle of the filter housing 51. The left end of the maintenance plate 54 is rotatably connected to the lower left side of the filter housing 51, and the right side of the maintenance plate 54 is fixedly connected to the lower end of the filter housing 51 by maintenance bolts, allowing for disassembly and assembly. This provides a foundation for airflow guiding and filtration. The airflow guiding mechanism 5 also includes three... The system includes a three-way pipe 55, an electric diverter valve 56, and an airflow sensor 57. The three-way pipe 55 is located on the left side of the filter housing 51. The electric diverter valve 56 is located in the middle of the inside of the three-way pipe 55. The input end of the electric diverter valve 56 is electrically connected to the output end of an external controller. The electric diverter valve 56 connects or closes different ventilation pipes by changing the direction of the valve core. The airflow sensor 57 is located at the front and rear ends of the left side of the inner wall of the three-way pipe 55. The airflow sensor 57 is bidirectionally electrically connected to the external controller. The airflow sensor 57 is used to monitor the airflow of the ventilation pipes in real time, providing a basis for air diversion and intake volume detection.

[0022] The heat exchange mechanism 6 includes a fixed plate 61, a main plate 62, a secondary plate 63, bending strips 64, limiting heads 65, a fixing rod 66, and a fixing nut 67. The fixed plates 61 are respectively bolted to the front and rear sides of the center inside the heat exchange shell 1. The main plate 62 and secondary plate 63 are evenly distributed between the two fixed plates 61. The front end of the frontmost secondary plate 63 and the rear end of the rearmost secondary plate 63 are both attached to the side of the fixed plate 61 near the center of the heat exchange shell 1. The front side of the main plate 62 is provided with evenly distributed bending strips 64. The rear ends of the secondary plates 63 are attached to the front ends of the vertically adjacent main plate 62 and bending strips 64. The four rear corners of the limiting heads 65 are provided with limiting heads 65, and the four front corners of the main plate 62 are provided with limiting grooves. The outer surface of each plate is inserted into the inner wall of the longitudinally adjacent limiting groove. A fixing rod 66 is provided between the four corners of the two fixing plates 61. The main plate 62, the sub-plate 63 and the bending strip 64 form a heat exchange plate. The four corners of the plate are provided with grooves. The inner wall of the grooves is in contact with the outer surface of the longitudinally adjacent fixing rod 66. The fixing nuts 67 are threaded to the front and rear sides of the outer surface of the fixing rod 66 respectively. The side of the fixing nut 67 near the middle of the fixing rod 66 is in contact with the side of the fixing plate 61 away from the middle of the fixing rod 66. The fixing plate 61, the main plate 62, the sub-plate 63, the bending strip 64, the limiting head 65, the fixing rod 66 and the fixing nut 67 form a detachable heat exchange core, providing a basis for the quick assembly and disassembly of the heat exchange core itself. The heat exchange mechanism 6 also includes a collection assembly 68, which includes a connecting pipe 681, limiting posts 682, and limiting holes 683. Connecting pipes 681 are provided between the four corners of the two fixed plates 61. The side of the connecting pipe 681 closest to the middle of the heat exchange shell 1 is in contact with the adjacent end of the heat exchange plate. The side of the connecting pipe 681 furthest from the middle of the heat exchange shell 1 is connected to the longitudinally adjacent connecting groove 7. A rubber sealing ring is provided on the side of the connecting pipe 681 furthest from the middle of the heat exchange shell 1 for sealing during connection. The limiting posts 682 are respectively located on the left and right sides of the connecting pipe 681, and the limiting holes 683 are all located at the four corners of the fixed plate 61 closest to the middle of the heat exchange shell 1. The outer surface of the limiting post 682 is inserted into the inner wall of the longitudinally adjacent limiting hole 683, providing a basis for the connection and sealing of the heat exchange core and the heat exchange shell 1. The collection assembly 68 also includes a collection box 684 and a solenoid valve 685. The lower middle of the two connecting pipes 681 below is provided with a collection groove. The collection box 684 is located at the lower end of the collection groove. The solenoid valve 685 is located at the lower end of the outer surface of the collection box 684. The side of the solenoid valve 685 away from the middle of the heat exchange shell 1 can be connected to the external drain pipe for the discharge of condensate. The input end of the solenoid valve 685 is electrically connected to the output end of the external controller, providing a basis for the collection and discharge of condensate. The heat exchange mechanism 6 also includes a disassembly and assembly component 69, which includes a support plate 691, limiting protrusions 692, and telescopic slide rails 693. The support plate 691 is slidably connected to the middle of the interior of the heat exchange shell 1. The limiting protrusions 692 are respectively located on the left and right sides of the upper end of the support plate 691. The lower ends of the fixing plates 61 are all in contact with the upper ends of the support plate 691. The left and right sides of the lower end of the fixing plates 61 are provided with recesses. The inner walls of the recesses are all in contact with the upper ends of the outer surfaces of the vertically adjacent limiting protrusions 692. The telescopic slide rails 693 are respectively located in the middle of the front and rear inner walls of the heat exchange shell 1. The telescopic slide rails 693 are three-section telescopic rails commonly used in the prior art. The lower ends of the telescopic slide rails 693 are all fixedly connected to the upper ends of the vertically adjacent support plates 691, providing a foundation for the placement and lifting of the heat exchange core. The disassembly and assembly component 69 also includes a deflection block 694, a connecting rod 695, a fixing column 696, a fixing hole 697, and a knob 698. The deflector block 694 is rotatably connected to the middle of the inside of the support plate 691. The fixing posts 696 are slidably connected to the front and rear sides of the inside of the support plate 691. A connecting rod 695 is provided between the deflector block 694 and the fixing post 696. The side of the connecting rod 695 near the middle of the support plate 691 is rotatably connected to the side of the support plate 691 away from the middle of the support plate 691. The side of the connecting rod 695 away from the middle of the support plate 691 is rotatably connected to the middle of the side of the fixing post 696 near the middle of the support plate 691. Fixing holes 697 are respectively opened at the lower middle of the front and rear side walls of the heat exchange shell 1. The side of the outer surface of the fixing post 696 away from the middle of the support plate 691 is inserted into the inner wall of the vertically adjacent fixing hole 697. The knob 698 is set at the lower end of the deflector block 694. The lower end of the knob 698 is marked with an arrow, which provides a basis for fixing and releasing the heat exchange core and can effectively prevent the heat exchange core from falling off during disassembly and assembly.

[0023] The working principle of the green building ventilation and energy-saving system provided by this invention is as follows: Before using the green building ventilation and energy-saving system, the equipment needs to be installed. The entire ventilation system needs to be installed inside the building ceiling for the sake of the building's overall aesthetics. There are two sets of bypass pipes 2 and flow guiding mechanisms 5. One set of bypass pipes 2 is used for bypass air intake, and the other set is used for bypass air exhaust. One set of flow guiding mechanisms 5 facilitates the filtration, reversal, and intake of outdoor air, and the other set is used for the exhaust, reversal, and intake of indoor air. During installation, the air intake mechanism 4 is set outdoors and connected to the side of the corresponding air intake flow guiding mechanism 5 near the filter element 52 through an external ventilation duct. The side of the exhaust flow guiding mechanism 5 near the filter element 52 is connected to the return air of each room through an external ventilation channel. The air inlet tee 55 is connected to the air intake bypass 2 via an external ventilation duct. The rear end of the air inlet tee 55 is connected to the front interface of the right-side flange joint 8 via an external ventilation duct. The rear interface of the left-side flange joint 8 is connected to the fresh air inlets of each room via an external ventilation duct. The right end of the air intake bypass 2 is also connected to the fresh air inlets of each room via an external ventilation duct. The rear end of the exhaust tee 55 is connected to the left end of the exhaust bypass 2 via an external ventilation duct. The front end of the exhaust tee 55 is connected to the front interface of the left-side flange joint 8 via an external ventilation duct. The right end of the exhaust bypass 2 is connected to the external exhaust pipe. With the flange joint 8 on the right side connected to the rear interface of the external exhaust pipe 2, the ventilation system is now installed and begins ventilation. The external controller controls the wind direction sensor 47 and the motor 45. The wind direction sensor 47 detects the outdoor wind direction and sends an electrical signal to the external controller. The external controller controls the output shaft of the motor 45 to rotate, driving the connecting frame 43 and the wind deflector 44 to rotate, ensuring that the inner arc surface of the wind deflector 44 is always facing the wind. At this time, the outdoor natural wind is blocked by the wind deflector 44 and enters the interior of the transition pipe 3, and then enters the interior of the filter housing 51 through the external ventilation duct. The air intake fan 53 operates, driving the airflow to move and reducing the pressure on the side of the filter element 52 closest to the fan 53. Natural wind can then pass smoothly through the filter element 52 and be blown by the fan. The air intake 53 accelerates into the three-way pipe 55. During this process, natural wind passively enters the air intake mechanism 4, rather than being simply drawn in by the fan 53. This allows the fan 53 to operate normally at low power. At this time, the valve cores of both electric branch valves 56 are in a backward deflection state. The air intake three-way pipe 55 is connected to the heat exchange shell 1. Fresh air enters from the lower right side of the interior of the heat exchange shell 1, then passes through the heat exchange core and exits from the upper left side of the interior of the heat exchange shell 1. It then passes through the external ventilation duct and enters each room of the building through the fresh air inlet. At the same time, the exhaust fan 53 also operates, drawing the stale air from each room into the exhaust filter shell 51 through the return air inlet. After being filtered by the corresponding filter element 52, the stale air...The exhaust fan 53 accelerates the airflow from the lower left front side of the heat exchange shell 1 into the heat exchange core, then passes through the heat exchange core and exits from the upper right rear side of the heat exchange shell 1, and finally exits outdoors through the external exhaust pipe 2. During this process, when the airflow passes through the heat exchange core, the bending strip 64 can delay the residence time of the airflow inside the heat exchange core by increasing the flow path. In winter, the indoor air is heated, and the warm indoor air will heat the surrounding main plate 62, secondary plate 63 and bending strip 64. Because the heat exchange plates are alternating between cold and hot air, the heat exchange plate carrying the cold outdoor air will be heated by the heat exchange plate carrying the warm indoor air, achieving heat absorption during air intake and heat release during air exhaust, thereby increasing the temperature of the fresh air and reducing the pressure on the indoor air conditioning. In summer, the inlet air temperature is high and the exhaust air temperature is low. During heat exchange through the heat exchange core, the inlet air releases heat and the exhaust air absorbs heat, thereby reducing the temperature of the fresh air and alleviating the pressure on the indoor air conditioning. When the airflow exchanges heat at the heat exchange core, condensate will be generated at the heat exchange plate. The condensate flows into the collection box 684 by its own gravity. The external controller periodically opens the solenoid valve 685 to discharge the condensate. When the indoor and outdoor temperatures are not much different in spring and autumn, in order to extend the service life of the heat exchanger, a bypass pipe is required for ventilation. The external controller controls the operation of the electric branch dampers 56. The valve cores of the two electric branch dampers 56 deflect forward. After being filtered by the air intake guide mechanism 5, the fresh air enters the air intake bypass pipe 2 from the air intake tee pipe 55 and then directly... Fresh air enters the room through the fresh air inlets of each room. Stale indoor air is drawn in from the return air inlet by the exhaust fan 53, then filtered by the exhaust air guide mechanism 5, and enters the exhaust bypass pipe 2 through the exhaust tee 55. Finally, it is discharged outdoors through the external exhaust pipe. Throughout the ventilation process, all airflow is filtered by the filter element 52. There are only two filter elements 52, located only inside the two filter housings 51. Their concentrated location makes maintenance easy; simply open the ceiling at the filter housing 51, loosen the maintenance bolts on the right side of the inspection plate 54, and tilt the inspection plate 54 downwards to open it. This exposes the lower ends of the filter element 52 and the fan 53, allowing the filter element 52 to be removed for replacement and the fan 53 to be disassembled for maintenance. To improve heat exchange efficiency, the heat exchange core also needs to be disassembled and maintained periodically. Open the ceiling at heat exchange shell 1 and remove the base plate below heat exchange shell 1. At this point, the fixing plate 61 is connected to heat exchange shell 1 by bolts. After loosening the four bolts, the entire heat exchange core is supported by the bearing plate 691 and will not fall off. At this time, the arrow markings below the knob 698 are distributed front and back, indicating that the bearing plate 691 is in a limited position. Rotate the knob 698 ninety degrees, so that the arrow markings are distributed left and right. With the rotation of the knob 698, the deflection block 694 also rotates, causing the two connecting rods 695 on the side closest to the middle of the bearing plate 691 to deflect outwards simultaneously. The length of the connecting rods 695 remains unchanged. After the side of the connecting rod 695 closest to the middle of the bearing plate 691 deflects...The side of connecting rod 695 away from the middle of the support plate 691 will move towards the middle of the support plate 691, thereby driving the corresponding fixing post 696 to move towards the middle of the support plate 691. The fixing post 696 is completely separated from the corresponding fixing hole 697. At this time, the support plate 691 loses its limit. There was a previous action of rotating knob 698, so the maintenance personnel are always in contact with the support plate 691. The support plate 691 will be slowly lowered by the maintenance personnel, and the heat exchange core and connecting pipe 681 will also move down. The side of the connecting pipe 681 away from the middle of the heat exchange core will separate from the corresponding connecting groove 7, and the telescopic slide rail 693 will also extend downward. When the telescopic slide rail 693 extends downward to its limit, the heat exchange core and connecting pipe 681 will move down outside the heat exchange shell 1. At this time, the heat exchange core and connecting pipe 681 will be lifted upward to separate the limiting protrusion 692 from the recess. Then, the heat exchange core and connecting pipe 681 will be removed from the support plate 691 to the left or right, completing the heat exchange core removal. The heat exchanger core itself is then dismantled. The eight fixing nuts 67 are loosened, and the fixing rods 66 are pulled out from the four corners of the heat exchanger core. The two fixing plates 61 lose their rigid connection, and the four corners of the heat exchanger plate lose their limiting effect. This allows for quick separation of the main plate 62, sub-plate 63, fixing plates 61, and connecting pipe 681, exposing the bending strip 64 for comprehensive maintenance and cleaning of the heat exchanger core. After maintenance and cleaning, the heat exchanger core needs to be reassembled. The limiting head 65 on the rear side of the sub-plate 63 is aligned with the limiting groove on the front side of the main plate 62, so that the main plate 62 and sub-plate 63 form a heat exchanger plate. The four fixing rods 66 are then inserted from the four corners of the rear fixing plate 61, and fixing nuts 67 are tightened on the rear surface of the fixing rods 66 to prevent them from falling off. The heat exchanger plate is then slid from the front side of the fixing rods 66 into the space between the four fixing rods 66, with adjacent heat exchanger plates offset at a 90-degree angle around their midpoints. Figure 9As shown, the outer surface of the fixing rod 66 fits against the longitudinally adjacent groove, forming an initial limit for the heat exchange plate. After all the heat exchange plates are installed in place, the limiting post 682 at the rear end of the connecting pipe 681 is aligned with the corresponding limiting hole 683, so that the rear limiting post 682 is inserted into the corresponding limiting hole 683. Then, the front fixing plate 61 is passed through the front side of the outer surface of the four fixing rods 66, so that the front limiting hole 683 and the front limiting post 682 are in an inserted state. Then, the front fixing nut 67 is tightened to fix the heat exchange plate and the connecting pipe 681 between the two fixing plates 61 to form a heat exchange core. Then, the heat exchange core is placed back on top of the support plate 691, so that the limiting protrusion 692 fits against the recess to prevent the heat exchange core from shifting left and right and falling off. Then, the support plate 691 is pushed up so that the support plate 691 and the heat exchange core enter the interior of the heat exchange shell 1, so that the connecting pipe 681 is reconnected to the corresponding connecting groove 7. Then, rotate knob 698 90 degrees so that the arrow markings below knob 698 are arranged in a front-to-back pattern. As knob 698 rotates, deflection block 694 drives connecting rod 695 and fixing column 696 to move outward simultaneously. Fixing column 696 inserts into the corresponding fixing hole 697, creating a limiting effect on the support plate 691 and the heat exchange core above it. Then, tighten the four bolts at the lower end of the outer surface of the heat exchange core in sequence to completely fix the heat exchange core in place. Then, close the base plate to complete the maintenance of the heat exchange core. During the entire maintenance process, the disassembly and assembly of the heat exchange core is supported by the support plate 691, which can effectively prevent the heat exchange core from falling off during disassembly and assembly. At the same time, the heat exchange core itself can be quickly and completely disassembled and assembled, so that the bending strip 64 can also be cleaned properly, which is conducive to maintaining the heat exchange efficiency of the heat exchange core and avoids waste caused by insufficient heat exchange efficiency of the heat exchange core during subsequent ventilation and heat exchange.

[0024] It is worth noting that the motor 45 disclosed in the above embodiments can be a UIM57 motor, the wind direction sensor 47 can be an FM-W-FX wind direction sensor, the electric branch valve 56 can be a YTQ941F-16C electric branch valve, the air volume sensor 57 can be a D7300 air volume sensor, and the solenoid valve 685 can be an SLP2-3H solenoid valve. The operation of the motor 45, wind direction sensor 47, electric branch valve 56, air volume sensor 57 and solenoid valve 685 by the external controller adopts the methods commonly used in the prior art.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A ventilation and energy-saving system for green buildings, characterized in that: It includes a heat exchange shell (1), an air induced draft mechanism (4), a flow guiding mechanism (5), and a heat exchange mechanism (6); Heat exchange shell (1): A bypass pipe (2) is placed at its lower end, and a transition pipe (3) is provided on the right side of the heat exchange shell (1). The air-driving mechanism (4) includes a wind cap (41), a filter screen (42), a connecting frame (43), and a baffle plate (44). The wind cap (41) is located at the upper end of the transition pipe (3). The filter screen (42) is located at the four corners of the middle of the outer surface of the wind cap (41). The connecting frame (43) is rotatably connected to the middle of the inside of the wind cap (41). The baffle plate (44) is located on the front side of the outer surface of the connecting frame (43). The outer surface of the baffle plate (44) is in contact with the inner wall of the wind cap (41). Flow guiding mechanism (5): It is located at the upper end of the heat exchange shell (1); Heat exchange mechanism (6): It is located inside the heat exchange shell (1).

2. The ventilation and energy-saving system for green buildings according to claim 1, characterized in that: The wind-guiding mechanism (4) also includes a motor (45), a protective shell (46), and a wind direction sensor (47). The motor (45) is located at the middle of the upper end of the wind cap (41). The input end of the motor (45) is electrically connected to the output end of the external controller. The lower end of the output shaft of the motor (45) is fixedly connected to the upper end of the connecting frame (43). The protective shell (46) is located in the middle of the outer surface of the wind cap (41). The motor (45) is located inside the protective shell (46). The wind direction sensor (47) is located in the middle of the upper end of the protective shell (46). The wind direction sensor (47) is bidirectionally electrically connected to the external controller.

3. The ventilation and energy-saving system for green buildings according to claim 1, characterized in that: The flow guiding mechanism (5) includes a filter shell (51), a filter element (52), a fan (53), and a maintenance plate (54). The filter shell (51) is placed at the upper end of the heat exchange shell (1). The filter elements (52) are all inserted into the inside right side of the filter shell (51). The fan (53) is located inside the left side of the filter shell (51). The input end of the fan (53) is electrically connected to the output end of an external controller. The maintenance plate (54) is located at the lower middle part of the filter shell (51).

4. The ventilation and energy-saving system for green buildings according to claim 3, characterized in that: The flow guiding mechanism (5) also includes a three-way pipe (55), an electric branch valve (56), and an air volume sensor (57). The three-way pipe (55) is located on the left side of the filter housing (51). The electric branch valve (56) is located in the middle of the inside of the three-way pipe (55). The input end of the electric branch valve (56) is electrically connected to the output end of the external controller. The air volume sensor (57) is located at the front and rear ends of the left side of the inner wall of the three-way pipe (55). The air volume sensor (57) is bidirectionally electrically connected to the external controller.

5. A ventilation and energy-saving system for green buildings according to claim 1, characterized in that: The heat exchange mechanism (6) includes a fixed plate (61), a main plate (62), a secondary plate (63), a bending strip (64), a limiting head (65), a fixing rod (66), and a fixing nut (67). The fixed plates (61) are respectively bolted to the front and rear sides of the middle of the heat exchange shell (1). The main plate (62) and the secondary plate (63) are evenly distributed between the two fixed plates (61). The front end of the frontmost secondary plate (63) and the rear end of the rearmost secondary plate (63) are attached to the side of the fixed plate (61) near the middle of the heat exchange shell (1). The front side of the main plate (62) is provided with evenly distributed bending strips (64). The rear ends of the secondary plates (63) are attached to the front ends of the vertically adjacent main plates (62) and bending strips (64). The four corners of the rear side of the limiting head (65) are provided with limiting heads (65), and the four corners of the front side of the main board (62) are provided with limiting grooves. The outer surface of the limiting head (65) is inserted into the inner wall of the longitudinally adjacent limiting groove. The four corners of the two fixing plates (61) are provided with fixing rods (66). The four corners of the heat exchange plate formed by the main board (62), the sub-plate (63) and the bending strip (64) are provided with grooves. The inner wall of the groove is in contact with the outer surface of the longitudinally adjacent fixing rod (66). The fixing nuts (67) are threaded to the front and rear sides of the outer surface of the fixing rod (66). The side of the fixing nut (67) near the middle of the fixing rod (66) is in contact with the side of the fixing plate (61) away from the middle of the fixing rod (66).

6. A ventilation and energy-saving system for green buildings according to claim 5, characterized in that: The heat exchange mechanism (6) also includes a collection component (68), which includes a connecting pipe (681), a limiting post (682), and a limiting hole (683). The connecting pipe (681) is provided between the four corners of the two fixed plates (61). The connecting pipe (681) is attached to the adjacent end of the heat exchange plate on the side near the middle of the heat exchange shell (1). The limiting post (682) is respectively set on the left and right sides of the connecting pipe (681). The limiting hole (683) is opened at the four corners of the fixed plate (61) near the middle of the heat exchange shell (1). The outer surface of the limiting post (682) is inserted into the inner wall of the longitudinally adjacent limiting hole (683).

7. A ventilation and energy-saving system for green buildings according to claim 6, characterized in that: The collection assembly (68) also includes a collection box (684) and a solenoid valve (685). The lower middle part of the two connecting pipes (681) below is provided with a collection groove. The collection box (684) is located at the lower end of the collection groove. The solenoid valve (685) is located at the lower end of the outer surface of the collection box (684). The input end of the solenoid valve (685) is electrically connected to the output end of an external controller.

8. A ventilation and energy-saving system for green buildings according to claim 5, characterized in that: The heat exchange mechanism (6) also includes a disassembly assembly (69), which includes a support plate (691), a limiting protrusion (692), and a telescopic slide rail (693). The support plate (691) is slidably connected to the middle of the interior of the heat exchange shell (1). The limiting protrusions (692) are respectively located on the left and right sides of the upper end of the support plate (691). The lower end of the fixing plate (61) is attached to the upper end of the support plate (691). The left and right sides of the lower end of the fixing plate (61) are provided with recesses. The inner wall of the recesses is attached to the upper end of the outer surface of the vertically adjacent limiting protrusions (692). The telescopic slide rail (693) is respectively located in the middle of the front and rear inner walls of the heat exchange shell (1). The lower end of the telescopic slide rail (693) is fixedly connected to the upper end of the vertically adjacent support plate (691).

9. A ventilation and energy-saving system for green buildings according to claim 8, characterized in that: The heat exchange mechanism (6) further includes a disassembly assembly (69), which includes a deflection block (694), a connecting rod (695), a fixing column (696), a fixing hole (697), and a knob (698). The deflection block (694) is rotatably connected to the middle of the inside of the support plate (691), and the fixing column (696) is slidably connected to the front and rear sides of the inside of the support plate (691). A connecting rod (695) is provided between the deflection block (694) and the fixing column (696), and the connecting rod (695) is close to the middle of the support plate (691). One side of the rod (695) is rotatably connected to the side of the support plate (691) away from the middle of the support plate (691). The side of the connecting rod (695) away from the middle of the support plate (691) is rotatably connected to the middle of the side of the fixing column (696) close to the middle of the support plate (691). The fixing holes (697) are respectively opened at the lower middle of the front and rear side walls of the heat exchange shell (1). The side of the outer surface of the fixing column (696) away from the middle of the support plate (691) is inserted into the inner wall of the vertically adjacent fixing hole (697). The knob (698) is set at the lower end of the deflection block (694).

10. A ventilation and energy-saving system for green buildings according to claim 1, characterized in that: The heat exchange shell (1) has connecting grooves (7) on both the left and right sides, and flange joints (8) are provided inside the connecting grooves (7).

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