Energy-saving sealed heat-preservation noise-reduction air duct device

Abstract

The utility model relates to the field of air ducts, in particular to an energy-saving type sealed heat preservation and noise reduction air duct device which comprises a heat preservation pipe arranged on the outer layer, a noise reduction cotton layer arranged on the inner wall of the heat preservation pipe and a micropore noise reduction plate arranged at one end of the heat preservation pipe. The two ends of the heat preservation pipe are each provided with a micropore silencing plate. The heat preservation pipe is made of rubber and plastic materials. And the silencing cotton layer is adhered to the inner wall of the thermal insulation pipe. Two sliding rods are fixed to the inner side of the micropore silencing plate, and the two sliding rods are connected with an auxiliary micropore silencing plate. And the auxiliary microporous silencing plate is made of a metal material. And the microporous silencing plate is made of a metal material. The utility model can efficiently seal, preserve heat and reduce noise.

Description

Technical Field

[0001] The utility model relates to the field of air ducts, and more specifically to an energy-saving sealed heat-insulating and noise-reducing air duct device. Background Art

[0002] As the quality of life improves, green and healthy are not only reflected in people's eating, dressing and traveling, but also in the health and comfort of work and living places, which has become the goal pursued by more and more people from all walks of life. Passive low-energy houses have also become the new favorite in the construction industry.

[0003] The core concept of passive houses is health, comfort and energy saving. Health requires that the materials used are safe, and that the indoor air maintains constant temperature, humidity, oxygen, cleanliness and quietness. The most basic feature of passive houses is high sealing. Sealed living spaces require fresh air, and fresh air purification and dehumidification air handling units have become essential air handling equipment for passive houses.

[0004] Fresh air purification air handling units are different from ordinary air conditioning terminal equipment: they have higher filtration levels and dehumidification capacity requirements, and they also need to run quietly and consume low energy. High-efficiency filtration and high dehumidification requirements increase the internal resistance of the unit, directly affecting the power consumption and speed of the blower, and generating greater noise. High dehumidification requirements also determine that the air supply temperature of the unit is relatively low, which puts higher requirements on the insulation, cold bridge prevention and sealing performance of the box. To achieve the required air supply temperature point, while increasing the heat exchange area, it is also necessary to reduce the loss of effective energy of the unit. Reducing the internal resistance of the unit and reducing energy loss have become the key to successful development. Energy-saving sealed, heat-insulating and silencer air ducts have become important components for our unit development to achieve energy-saving and health indicators. Utility Model Content

[0005] The utility model provides an energy-saving sealed heat-insulating and noise-reducing air duct device, which can efficiently seal, insulate and reduce noise.

[0006] The technical solution adopted by the utility model to solve the above problems is:

[0007] An energy-saving sealed heat-insulating and sound-absorbing air duct device comprises a heat-insulating pipe arranged on the outer layer, a sound-absorbing cotton layer arranged on the inner wall of the heat-insulating pipe, and a microporous sound-absorbing plate arranged at one end of the heat-insulating pipe.

[0008] Both ends of the thermal insulation pipe are provided with microporous sound-absorbing plates.

[0009] The thermal insulation pipe is made of rubber and plastic.

[0010] The sound-absorbing cotton layer is glued to the inner wall of the thermal insulation pipe.

[0011] The microporous sound-absorbing plate is made of metal.

[0012] Two sliding rods are fixed on the inner side of the microporous sound-absorbing plate, and auxiliary microporous sound-absorbing plates are connected to the two sliding rods.

[0013] The auxiliary microporous sound-absorbing plate is made of metal.

[0014] A baffle is arranged at the end of the two slide bars away from the microporous muffler plate, and a spring is arranged between the auxiliary microporous muffler plate and the microporous muffler plate to make the auxiliary microporous muffler plate press against the baffle.

[0015] A central shaft is rotatably passed through the middle of the heat preservation pipe, an eccentric wheel is fixed at the lower end of the central shaft, and the eccentric wheel is slidably connected with two auxiliary microporous sound-absorbing plates.

[0016] A rotating ring is rotatably arranged on the eccentric wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the energy-saving sealed heat-insulating and noise-reducing air duct device;

[0018] Figure 2 A schematic diagram of the partial structure of an energy-saving sealed, heat-insulating and sound-absorbing air duct device Figure 1 ;

[0019] Figure 3 A schematic diagram of the partial structure of an energy-saving sealed, heat-insulating and sound-absorbing air duct device Figure 2 ;

[0020] Figure 4 for Figure 3 Schematic diagram of the local structure;

[0021] Figure 5 It is a structural schematic diagram of the eccentric wheel.

[0022] In the figure:

[0023] Insulation pipe 1; sound-absorbing cotton layer 2; microporous sound-absorbing board 3; sliding rod 4; auxiliary microporous sound-absorbing board 5; baffle 6; central shaft 7; eccentric wheel 8. DETAILED DESCRIPTION

[0024] like Figure 1-5 As shown, the embodiments of the utility model are described in detail:

[0025] The utility model provides an energy-saving sealed heat-insulating and silencing air duct device for a fresh air purification and dehumidification air handling unit. The device is located between the fan port of the fresh air purification and dehumidification air handling unit and the air outlet of the air handling unit, and is composed of three parts from the outside to the inside. The heat-insulating pipe 1 is a rubber-plastic heat-insulating board with a leather on the outside and a glue on the inside, the silencing cotton layer 2 is silencing cotton, and the microporous silencing board 3 is a microporous silencing metal board.

[0026] The insulation pipe 1 is a rubber-plastic insulation board on the outside of the sound-absorbing cotton. The outer side of the rubber-plastic insulation board has a leather, which has a good sealing effect on the air, preventing a small amount of leakage of the air flow in the air duct after passing through the sound-absorbing cotton. The inner adhesive of the rubber-plastic insulation board can be pasted with the sound-absorbing cotton to form a whole, and at the same time seal the gap between the entire air duct and the docking parts, reduce air leakage at the air duct interface, and play a role in strengthening the wrapping seal. The sound-absorbing cotton layer 2 forms a heat-insulating protection for the air duct while reducing the air flow noise, avoiding contact with the ambient air outside the air duct to produce condensation. The microporous sound-absorbing board 3 can reduce the noise of high-speed airflow through micropores. This three-layer composite sealed heat-insulating sound-absorbing air duct forms an efficient sealed heat-insulating noise reduction. It can effectively ensure the air supply volume, reduce the energy consumption of the blower, and play a vital role in keeping the unit clean and dry to prevent condensation outside the box.

[0027] At the same time, if Figure 1-5 As shown:

[0028] Two slide bars 4 are fixed on the inner side of the microporous sound-absorbing plate 3 , and auxiliary microporous sound-absorbing plates 5 are connected to the two slide bars 4 .

[0029] The auxiliary microporous sound-absorbing plate 5 is made of metal.

[0030] A baffle 6 is provided at the end of the two slide bars 4 away from the microporous silencer plate 3 , and a spring is provided between the auxiliary microporous silencer plate 5 and the microporous silencer plate 3 to make the auxiliary microporous silencer plate 5 press against the baffle 6 .

[0031] A central shaft 7 is rotatably passed through the middle of the insulation pipe 1 , an eccentric wheel 8 is fixed to the lower end of the central shaft 7 , and the eccentric wheel 8 is slidably connected to two auxiliary microporous silencer plates 5 .

[0032] Two auxiliary microporous silencer plates 5 are arranged inside the insulation pipe 1 to further silence the insulation pipe 1. At the same time, by starting the first motor installed on the insulation pipe 1, the eccentric wheel 8 is driven to rotate through the central shaft 7, thereby squeezing the auxiliary microporous silencer plates 5. A spring is arranged between the auxiliary microporous silencer plates 5 and the microporous silencer plates 3 to form the reciprocating movement of the auxiliary microporous silencer plates 5 on the two sliding rods 4, so that the position of the auxiliary microporous silencer plates 5 in the insulation pipe 1 is always in a moving state, thereby better silencing; moreover, by arranging the eccentric wheel 8 in the middle, the two auxiliary microporous silencer plates 5 can be driven to reciprocate at the same time, and the two auxiliary microporous silencer plates 5 can cooperate with the asynchronous reciprocating movement to further better silence the sound.

[0033] Furthermore, by rotating a rotating ring on the eccentric wheel 8, the rotating ring is brought into contact with the auxiliary microporous silencer plate 5, so that the eccentric wheel 8 drives the auxiliary microporous silencer plate 5 to reciprocate more smoothly.

Claims

1. An energy-saving sealed heat-insulating and noise-reducing air duct device, characterized in that: It comprises a heat preservation pipe (1) arranged on the outer layer, a sound-absorbing cotton layer (2) arranged on the inner wall of the heat preservation pipe (1), and a microporous sound-absorbing plate (3) arranged at one end of the heat preservation pipe (1); Both ends of the thermal insulation pipe (1) are provided with microporous sound-absorbing plates (3); Two sliding rods (4) are fixed on the inner side of the microporous sound-absorbing plate (3), and auxiliary microporous sound-absorbing plates (5) are connected to the two sliding rods (4); A baffle (6) is provided at the ends of the two sliding rods (4) away from the microporous sound-absorbing plate (3), and a spring is provided between the auxiliary microporous sound-absorbing plate (5) and the microporous sound-absorbing plate (3) so that the auxiliary microporous sound-absorbing plate (5) is pressed against the baffle (6); A central shaft (7) is rotatably passed through the middle of the thermal insulation pipe (1), an eccentric wheel (8) is fixed to the lower end of the central shaft (7), and the eccentric wheel (8) is slidably connected to two auxiliary microporous silencer plates (5).

2. The energy-saving sealed heat-insulating and noise-reducing air duct device according to claim 1, characterized in that: The thermal insulation pipe (1) is made of rubber and plastic.

3. The energy-saving sealed heat-insulating and sound-absorbing air duct device according to claim 1, characterized in that: The sound-absorbing cotton layer (2) is glued to the inner wall of the thermal insulation pipe (1).

4. The energy-saving sealed heat-insulating and sound-absorbing air duct device according to claim 1, characterized in that: The microporous sound-absorbing plate (3) is made of metal.

5. The energy-saving sealed heat-insulating and noise-reducing air duct device according to claim 1, characterized in that: The auxiliary microporous sound-absorbing plate (5) is made of metal.

6. The energy-saving sealed heat-insulating and noise-reducing air duct device according to claim 1, characterized in that: A rotating ring is rotatably arranged on the eccentric wheel (8).

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