Ventilation system and method for air inlet and outlet passages of kitchen and toilet of residence

Abstract

The invention relates to a residential kitchen and toilet air inlet and exhaust passage ventilation system and ventilation method, and belongs to the technical field of smoke exhaust of residential building kitchens and toilets. According to the technical scheme, the device comprises at least one smoke exhaust duct and at least one air inlet duct, the smoke exhaust duct is provided with an exhaust port communicated with a kitchen and a toilet of a house, and the exhaust port is provided with an exhaust check valve; the air inlet channel is provided with an air inlet which is communicated with a kitchen and a bathroom of the residence, and the air inlet is provided with an air inlet check valve; the air inlet channel is communicated with air outside a house through an air inlet pipe, and air enters kitchens and toilets of the house through the air inlet pipe, the air inlet channel and the air inlet. The invention has the beneficial effects that the independent air inlet channel is added, so that outdoor air enters the kitchen and the bathroom of the residence, vacuum, smoke and odor mixing and floor drain odor returning caused by the use of an exhaust fan and a smoke exhaust ventilator are avoided, and the air in the kitchen and the bathroom is kept fresh.

Description

Technical Field

[0001] The invention relates to a ventilation system and a ventilation method for an air intake and exhaust duct of a residential kitchen and bathroom, belonging to the technical field of smoke exhaust in kitchens and bathrooms of residential buildings. Background Art

[0002] The exhaust duct of the kitchen and bathroom is also called ventilation duct, exhaust duct, exhaust duct, etc. A common problem of the exhaust duct in the prior art is the smell from the floor drain. The main reason for the smell from the floor drain is that the doors and windows of the kitchen and bathroom are relatively closed, resulting in poor exhaust. When using exhaust fans and range hoods, a vacuum will be formed in the kitchen and bathroom, causing the floor drain to smell. Summary of the invention

[0003] The purpose of the present invention is to provide a ventilation system and method for air intake and exhaust ducts in residential kitchens and bathrooms, which adds an independent air intake duct to allow outdoor air to enter the residential kitchen and bathroom, avoid the vacuum in the residential kitchen and bathroom caused by the use of exhaust fans and range hoods, prevent smoke and odor from entering, and prevent odor from coming back through the floor drain, thereby keeping the air in the kitchen and bathroom fresh, and solving the above-mentioned problems existing in the background technology.

[0004] The technical solution of the present invention is: A ventilation system for air intake and exhaust ducts in a residential kitchen and bathroom comprises at least one smoke exhaust duct and at least one air intake duct, wherein the smoke exhaust duct is provided with an exhaust port connected to the residential kitchen and bathroom, and an exhaust check valve is arranged on the exhaust port; the air intake duct is provided with an air inlet connected to the residential kitchen and bathroom, and an air inlet check valve is arranged on the air inlet; the air intake duct is connected to the air outside the residence through an air inlet pipe, and the air enters the residential kitchen and bathroom through the air inlet pipe, the air inlet duct and the air inlet port.

[0005] Furthermore, the air intake pipe is preset in the wall of the house, one end of the air intake pipe is connected to the air inlet duct, and the other end of the air intake pipe is connected to the air outside the house. It can be set at any position of the house, including the top, middle and bottom; the air intake pipe is provided with an air intake filter.

[0006] Furthermore, the air inlet duct is arranged in a multi-story residential building, and a plurality of transversely arranged sealed partition plates are provided in the air inlet duct to divide the air inlet duct into a plurality of independent spaces. The independent spaces contain the air inlet ducts of one or more floors of the residential building, and each independent space is provided with an air inlet pipe connected to the air outside the residential building.

[0007] Furthermore, a top sealing plate is arranged on the top of the air inlet duct at the top layer.

[0008] Furthermore, the smoke exhaust duct and the air intake duct are arranged in parallel, and share a same middle partition plate to separate the smoke exhaust duct and the air intake duct.

[0009] Furthermore, an air supply port is provided on the middle partition plate located at the bottom of the smoke exhaust duct and the air inlet duct, and a check valve is provided on the air supply port, and the check valve unidirectionally connects the bottom of the smoke exhaust duct and the air inlet duct.

[0010] Furthermore, a hood is provided on the top of the smoke exhaust duct.

[0011] A ventilation method for an air intake and exhaust duct ventilation system for a kitchen and bathroom in a residence, wherein at least one smoke exhaust duct and at least one air intake duct are installed in the kitchen and bathroom in the residence, and the air intake duct and the smoke exhaust duct are both independent air ducts; an exhaust port is provided on the smoke exhaust duct to communicate with the kitchen and bathroom in the residence, and an exhaust check valve is provided on the exhaust port; an air intake port is provided on the air intake duct to communicate with the kitchen and bathroom in the residence, and an air intake check valve is provided on the air intake port; an independent air intake pipe is provided on the wall of the residence, and the air intake duct is connected with the air outside the residence through the air intake pipe, and air enters the kitchen and bathroom in the residence through the air intake pipe, the air intake duct and the air intake port, thereby destroying the vacuum generated in the kitchen and bathroom in the residence when an exhaust fan and a range hood are used, avoiding odor from a floor drain and smoke odor cross-talk, and keeping the air in the kitchen and bathroom in the residence fresh.

[0012] The beneficial effects of the present invention are as follows: an independent air inlet duct is added to allow outdoor air to enter the kitchen and bathroom of the residence, thereby avoiding vacuum in the kitchen and bathroom caused by the use of exhaust fans and range hoods, preventing smoke and odor from entering the kitchen and bathroom, and preventing odor from returning from the floor drain, thereby keeping the air in the kitchen and bathroom fresh. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of an assembly according to an embodiment of the present invention before installation; Figure 3 This is a schematic diagram of an assembly after installation according to an embodiment of the present invention; Figure 4 A cross-sectional view of the exhaust port and the air inlet of the assembly after installation of the embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of an assembly according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the top sealing plate according to an embodiment of the present invention; In the figure: assembly 1, smoke exhaust duct 2, air inlet duct 3, exhaust port 4, air inlet 5, sealing partition plate 6, air supply port 7, air inlet pipe 8, wall 9, air inlet filter 10, floor 11, hood 12, top sealing plate 13, middle partition plate 14, exhaust check valve 15, air inlet check valve 16, load-bearing angle 17, wall corner 19, anti-cracking mortar 20, rectangular tube 23, extended side one 24, extended side two 25, smoke exhaust duct through hole 26. DETAILED DESCRIPTION

[0014] The present invention is further described below by way of examples.

[0015] Refer to the attached Figure 1 and 5 A ventilation system for air intake and exhaust ducts in a residential kitchen and bathroom comprises at least one smoke exhaust duct 2 and at least one air intake duct 3. The smoke exhaust duct 2 is provided with an exhaust port 4 which is connected to the residential kitchen and bathroom, and an exhaust check valve 15 is arranged on the exhaust port 4; the air intake duct 3 is provided with an air intake port 5 which is connected to the residential kitchen and bathroom, and an air intake check valve 16 is arranged on the air intake port 5; the air intake duct 3 is connected to the air outside the residence through an air intake pipe 8, and the air enters the residential kitchen and bathroom through the air intake pipe 8, the air intake duct 3 and the air intake port 5, thereby destroying the vacuum generated in the residential kitchen and bathroom when using an exhaust fan and a range hood, avoiding odor from a floor drain and smoke odor, and keeping the air in the residential kitchen and bathroom fresh.

[0016] Refer to the attached Figure 4 The air intake pipe 8 is preset in the wall 9 of the house, one end of the air intake pipe 8 is connected to the air inlet duct 3, and the other end of the air intake pipe 8 is connected to the air outside the house. It can be set at any position of the house, including the top, middle and bottom; the air intake pipe 8 is provided with an air intake filter 10 to prevent mosquitoes or impurities from entering.

[0017] Refer to the attached Figure 1 The air inlet duct 3 is arranged in a multi-story residential building. A plurality of transversely arranged sealed partition plates 6 are provided in the air inlet duct 3 to divide the air inlet duct 3 into a plurality of independent spaces. The independent spaces include the air inlets of one or more floors of the residential building. Each independent space is provided with an air inlet pipe 8 to communicate with the air outside the residential building.

[0018] Refer to the attached Figure 1 and 6 A top sealing plate 13 is provided at the top of the air inlet duct 3 at the top layer.

[0019] Preferably, the smoke exhaust duct 2 and the air inlet duct 3 are arranged in parallel, and share a same middle partition plate 14 to separate the smoke exhaust duct 2 and the air inlet duct 3 .

[0020] Preferably, an air supply port 7 is provided on the middle partition plate 14 located at the bottom of the smoke exhaust duct 2 and the air inlet duct 3, and a check valve (not shown in the figure) is provided on the air supply port 7, which connects the bottom of the smoke exhaust duct 2 and the air inlet duct 3 in one direction.

[0021] In the embodiments, refer to the attached Figure 2 , 3, 4 and 5, the smoke exhaust duct 2 and the air inlet duct 3 are composed of a wall corner 19 and an assembly 1. The assembly 1 is composed of a rectangular tube 23, an extended side 1 24 and an extended side 25. The extended side 1 24 and the extended side 25 are respectively extended outward along two adjacent sides of the rectangular tube 23. The ends of the extended side 1 24 and the extended side 25 are respectively close to the two sides of the wall corner 19 and fixed by anti-cracking mortar 20. Preferably, a load-bearing angle 17 is set outside the ends of the extended side 1 24 and the extended side 25 to facilitate the application of the anti-cracking mortar 20. The rectangular tube 23 is the smoke exhaust duct 2, and the space enclosed between the rectangular tube 23 and the two sides of the wall corner 19 is the air inlet duct 3. The smoke exhaust duct 2 and the air inlet duct 3 are assembled using the wall corner 19 and the assembly 1, and the interface is well sealed to avoid smoke and air leakage, thereby improving the installation efficiency.

[0022] Refer to the attached Figure 1 The top of the smoke exhaust duct 2 extends out of the floor 11 and is provided with a hood 12, which is a well-known device in the art.

[0023] A ventilation method for an air intake and exhaust duct ventilation system for a residential kitchen and bathroom, wherein at least one smoke exhaust duct 2 and at least one air intake duct 3 are installed in the residential kitchen and bathroom, wherein the air intake duct 3 and the smoke exhaust duct 2 are both independent air ducts; an exhaust port 4 is provided on the smoke exhaust duct 2 to communicate with the residential kitchen and bathroom, and an exhaust check valve 15 is provided on the exhaust port 4; an air intake port 5 is provided on the air intake duct 3 to communicate with the residential kitchen and bathroom, and an air intake check valve 16 is provided on the air intake port 5; an independent air intake pipe 8 is provided on a wall 9 of the residential building, and the air intake duct 3 is connected with air outside the residential building through the air intake pipe 8, and air enters the residential kitchen and bathroom through the air intake pipe 8, the air intake duct 3 and the air intake port 5, thereby destroying the vacuum generated in the residential kitchen and bathroom when an exhaust fan and a range hood are used, avoiding odor from a floor drain and smoke odor cross-talk, and keeping the air in the residential kitchen and bathroom fresh.

[0024] An air supply port 7 is provided between the smoke exhaust duct 2 and the air inlet duct 3 on the first floor of the house. When the kitchen and bathroom are exhausted, air is supplied to the smoke exhaust duct 2 when negative pressure is formed in the smoke exhaust duct 2. The air supply port 7 is provided with a one-way check valve, which can only intake air into the smoke exhaust duct 2 but cannot return air to the air inlet duct 3. An air inlet pipe 8 is reserved on the wall 9 on the first floor of the house. An air inlet filter 10 is provided at the air inlet 5 of the air inlet pipe 8. Fresh air enters the air inlet duct 3 from the outside through the air inlet filter 10. When negative pressure vacuum is formed in the kitchen and bathroom, fresh air enters to avoid odor.

[0025] Refer to the attached Figure 1 , 6The top of the air inlet 3 on the top floor of the residential building is provided with a top sealing plate 13, and the air inlet 3 on the middle floor is divided into several independent spaces by a sealing partition plate 6 to prevent air from flowing up and down. The working principle is that when the kitchen and bathroom open the range hood or the exhaust fan and the range hood, air is taken in from the air inlet 5 to form ventilation, and the exhaust port 4 is provided with an exhaust check valve 15 that only exhausts but does not take in air, and the air inlet 5 is provided with an air intake check valve 16 that only takes in air but does not exhaust.

[0026] Refer to the attached Figure 6 The top sealing plate 13 has the same structure and shape as the sealing partition plates 6 of other layers. The top sealing plate 13 and the sealing partition plates 6 of other layers are both provided with smoke exhaust air duct through holes 26. The cross-sectional size of the smoke exhaust air duct through holes 26 is the same as the cross-sectional size of the smoke exhaust air duct 2, so as to keep the smoke exhaust air duct 2 unobstructed.

Claims

1. A ventilation system for air intake and exhaust ducts in a residential kitchen and bathroom, characterized by: The invention comprises at least one smoke exhaust duct (2) and at least one air inlet duct (3); the smoke exhaust duct (2) is provided with an exhaust port (4) connected to a kitchen or bathroom of a residence, and an exhaust check valve (15) is provided on the exhaust port (4); the air inlet duct (3) is provided with an air inlet (5) connected to a kitchen or bathroom of a residence, and an air inlet check valve (16) is provided on the air inlet duct (5); the air inlet duct (3) is connected to the air outside the residence through an air inlet pipe (8), and the air enters the kitchen or bathroom of the residence through the air inlet pipe (8), the air inlet duct (3) and the air inlet port (5).

2. A residential kitchen and bathroom air intake and exhaust duct ventilation system according to claim 1, characterized in that: The air intake pipe (8) is preset in a wall (9) of the residence, one end of the air intake pipe (8) is connected to the air intake duct (3), and the other end of the air intake pipe (8) is connected to the air outside the residence, and an air intake filter (10) is provided on the air intake pipe (8).

3. A residential kitchen and bathroom air intake and exhaust duct ventilation system according to claim 1 or 2, characterized in that: The air intake duct (3) is arranged in a multi-storey residential building. A plurality of transversely arranged sealed partition plates (6) are provided in the air intake duct (3) to divide the air intake duct (3) into a plurality of mutually independent spaces. The independent spaces contain the air intake ducts of one or more multi-storey residential buildings. Each independent space is provided with an air intake pipe (8) to communicate with air outside the residential building.

4. A residential kitchen and bathroom air intake and exhaust duct ventilation system according to claim 3, characterized in that: A top sealing plate (13) is provided at the top of the air inlet duct (3) located at the top layer.

5. A residential kitchen and bathroom air intake and exhaust duct ventilation system according to claim 1 or 2, characterized in that: The smoke exhaust duct (2) and the air intake duct (3) are arranged in parallel and share a common middle partition plate (14) to separate the smoke exhaust duct (2) and the air intake duct (3).

6. A residential kitchen and bathroom air intake and exhaust duct ventilation system according to claim 1 or 2, characterized in that: An air supply port (7) is provided on the middle partition plate (14) located at the bottom of the smoke exhaust duct (2) and the air intake duct (3), and a check valve is provided on the air supply port (7), which connects the bottom of the smoke exhaust duct (2) and the bottom of the air intake duct (3) in one direction.

7. A ventilation method for a ventilation system for an air intake and exhaust duct of a residential kitchen or bathroom as claimed in any one of claims 1 to 6, characterized in that: At least one smoke exhaust duct (2) and at least one air inlet duct (3) are installed in a residential kitchen or bathroom, and the air inlet duct (3) and the smoke exhaust duct (2) are both independent air ducts; an exhaust port (4) is provided on the smoke exhaust duct (2) and is connected to the residential kitchen or bathroom, and an exhaust check valve (15) is provided on the exhaust port (4); an air inlet (5) is provided on the air inlet duct (3) and is connected to the residential kitchen or bathroom, and an air inlet check valve (16) is provided on the air inlet duct (5); an independent air inlet pipe (8) is provided on the wall (9) of the residential building, and the air inlet duct (3) is connected to the air outside the residential building through the air inlet pipe (8), and the air enters the residential kitchen or bathroom through the air inlet pipe (8), the air inlet duct (3) and the air inlet (5).

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