Fresh air system suitable for canteen

Abstract

The utility model relates to a fresh air system suitable for a canteen, and relates to the technical field of ventilation systems, the fresh air system comprises a plurality of ventilation pipes mounted on a house body, and an exhaust fan and a preliminary filter screen are mounted on the side, close to the exterior of the house body, in each ventilation pipe; a honeycomb activated carbon block is arranged on the side, close to the interior of the house body, in the ventilation pipe, a limiting assembly used for limiting the position of the honeycomb activated carbon block in the ventilation pipe is arranged in the ventilation pipe, and an access hole is formed in the ventilation pipe. And a blocking plate and a fixing assembly used for fixedly connecting the blocking plate to the access hole are arranged at the access hole. The canteen ventilation system has the effect of reducing the influence of viscous oil smoke pollutants on the canteen ventilation system.

Description

Technical Field

[0001] The present application relates to the technical field of ventilation systems, and in particular to a fresh air system suitable for canteens. Background Art

[0002] Large enclosed places such as canteens are prone to problems such as polluted air and mixed odors due to the dense crowds. As a place where a large number of people gather to eat, the air quality of the canteen is crucial to the health of diners. As an air treatment device, the fresh air system has been widely used in various enclosed places to improve indoor air quality.

[0003] The fresh air system in the related art mainly introduces fresh air from the outside through ventilation ducts and exhaust fans, and sends it into the room after filtering and purification, while exhausting the dirty air in the room. However, there are many sticky pollutants such as cooking fumes in the air in the cafeteria. These sticky fume pollutants may adhere to the exhaust duct or exhaust fan, which is not only difficult to clean, affecting the normal ventilation efficiency of the ventilation duct, but also may emit odor after a long time, affecting the air quality in the cafeteria. Utility Model Content

[0004] In order to reduce the impact of sticky oil fume pollutants on the canteen ventilation system, the present application provides a fresh air system suitable for the canteen.

[0005] The present application provides a fresh air system suitable for a canteen using the following technical solutions:

[0006] A fresh air system suitable for a canteen comprises a plurality of ventilation ducts installed on a building body, an exhaust fan and a preliminary filter screen being installed on one side of the ventilation duct close to the outside of the building body, a honeycomb activated carbon block being installed on one side of the ventilation duct close to the inside of the building body, a limiting component being provided in the ventilation duct for limiting the position of the honeycomb activated carbon block in the ventilation duct, an inspection port being opened on the ventilation duct, a sealing plate and a fixing component for fixing the sealing plate to the inspection port.

[0007] By adopting the above technical solution, when ventilation is conducted inside the house body, large-diameter impurities entering the filter pipe can be blocked by the preliminary filter, and when the exhaust fan exhausts air to the outside of the house body, the honeycomb activated carbon block can be used to adsorb the sticky oil fume pollutants in the air before entering the exhaust fan, purify the gas, and regularly replace the honeycomb activated carbon through the inspection port, thereby maintaining the adsorption efficiency of the honeycomb activated carbon. This reduces the impact of sticky oil fume pollutants on the exhaust fan, and further reduces the impact of sticky oil fume pollutants on the canteen ventilation system.

[0008] Optionally, the ventilation pipe is arranged to be tilted downward on a side close to the exterior of the housing body.

[0009] By adopting the above technical solution, water flow or part of impurities in the ventilation pipe can be discharged along the inclined ventilation pipe, thereby reducing the possibility of water flow or part of impurities entering the house.

[0010] Optionally, the limiting assembly includes a plurality of limiting rods, the limiting rods are fixed in the ventilation pipe, and the honeycomb activated carbon block abuts against the limiting rods.

[0011] By adopting the above technical solution, the position of the honeycomb activated carbon block can be limited by the limit rod, thereby reducing the occurrence of collision between the honeycomb activated carbon block and the exhaust fan.

[0012] Optionally, the fixing assembly includes a plurality of fixing bolts, and the fixing bolts are threadedly connected to the sealing plate and the ventilation pipe at the same time.

[0013] By adopting the above technical solution, the rod of the fixing bolt can be separated from the ventilation pipe by rotating the fixing bolt, thereby realizing the removal of the blocking plate from the ventilation pipe.

[0014] Optionally, the honeycomb activated carbon block is provided in plurality and the plurality of honeycomb activated carbon blocks are arranged along the length direction of the ventilation pipe.

[0015] By adopting the above technical solution, the air containing impurities such as oil smoke can be adsorbed in sequence through multiple linearly arranged honeycomb activated carbon blocks, thereby improving the adsorption effect of the honeycomb activated carbon.

[0016] Optionally, a moving rod for moving the honeycomb activated carbon block is provided in the ventilation duct, the moving rod abuts against the honeycomb activated carbon block close to the side of the limiting rod, and a driving component for driving the moving rod to move toward the side of the inspection port is provided in the ventilation duct.

[0017] By adopting the above technical solution, when the inspection port is opened, the moving rod can be driven by the driving assembly to move toward the side of the inspection port, and then the moving rod will drive the honeycomb activated carbon block to move toward the side of the inspection port and be discharged from the ventilation duct through the inspection port.

[0018] Optionally, the driving assembly includes a driving rod, one end of which is fixedly connected to the moving rod, the driving rod is slidably connected to the inner wall of the ventilation pipe, and the other end of the moving rod is fixedly connected to a pull rope.

[0019] By adopting the above technical solution, the driving rod can be driven by the pull rope to move along the length direction of the ventilation pipe, and then the moving rod will drive the honeycomb activated carbon block to move to the side of the inspection port.

[0020] Optionally, a return spring is provided on a side of the driving rod away from the moving rod, one end of the return spring is fixedly connected to the inner wall of the ventilation pipe, and the other end of the return spring is fixedly connected to the driving rod.

[0021] By adopting the above technical solution, the driving rod can be reset by the reset spring, thereby facilitating the addition of new activated carbon into the ventilation pipe.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The honeycomb activated carbon block is used to adsorb the sticky fume pollutants in the air before entering the exhaust fan, purify the gas, reduce the impact of the sticky fume pollutants on the exhaust fan, and further reduce the impact of the sticky fume pollutants on the canteen ventilation system;

[0024] 2. By turning the fixing bolt, the rod of the fixing bolt is separated from the ventilation pipe, thereby realizing the removal of the blocking plate from the ventilation pipe;

[0025] 3. The air containing impurities such as oil smoke can be adsorbed in sequence through multiple linearly arranged honeycomb activated carbon blocks, thereby improving the adsorption effect of the honeycomb activated carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of an inspection port according to an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of the structure of the chute of an embodiment of the present application;

[0029] In the figure, 1. building body; 2. ventilation duct; 21. inspection port; 22. blocking plate; 23. fixing assembly; 231. fixing bolt; 24. slide; 3. exhaust fan; 4. preliminary filter; 5. honeycomb activated carbon block; 6. limit assembly; 61. limit rod; 7. moving rod; 8. driving assembly; 81. driving rod; 82. pull rope; 9. reset spring. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0031] The embodiment of the present application is: a fresh air system suitable for a canteen, referring to Figure 1 , including a plurality of ventilation pipes 2 installed on the side wall of the house body 1, the ventilation pipes 2 are arranged in a rectangular shape and the ventilation pipes 2 are arranged to be inclined downward on one side close to the outside of the house body 1.

[0032] Reference Figure 1 and Figure 2 An exhaust fan 3 and a preliminary filter 4 are installed on the side of the ventilation pipe 2 close to the outside of the house body 1, wherein the preliminary filter 4 is installed on the side of the exhaust fan 3 away from the inside of the house body 1. A honeycomb activated carbon block 5 is provided on the side of the ventilation pipe 2 close to the inside of the house body 1. The honeycomb activated carbon block 5 is arranged in multiple numbers and the multiple honeycomb activated carbon blocks 5 are arranged along the length direction of the ventilation pipe 2, and two adjacent honeycomb activated carbon blocks 5 abut against each other. The opening direction of the honeycomb holes on the honeycomb activated carbon block 5 is parallel to the length direction of the ventilation pipe 2.

[0033] A limiting assembly 6 for limiting the position of the honeycomb activated carbon block 5 in the ventilation pipe 2 is provided in the ventilation pipe 2. The limiting assembly 6 includes two limiting rods 61, which are fixedly connected in the ventilation pipe 2, and the limiting rods 61 are located between the fan and the honeycomb activated carbon block 5 on the side closest to the fan. The honeycomb activated carbon block 5 abuts against the limiting rods 61.

[0034] Reference Figure 2 and Figure 3 The ventilation pipe 2 is provided with an inspection port 21, which is located on the lower side wall of the ventilation pipe 2 and inside the house body 1. A blocking plate 22 is provided at the inspection port 21, and the blocking plate 22 is set in a rectangular parallelepiped shape. The blocking plate 22 is provided with a fixing component 23 for fixing the blocking plate 22 to the inspection port 21.

[0035] The fixing assembly 23 includes four fixing bolts 231, which are respectively located at the four corners of the blocking plate 22. The fixing bolts 231 are simultaneously threadedly connected to the blocking plate 22, and the rods of the fixing bolts 231 pass through the blocking plate 22 and are threadedly connected to the ventilation pipe 2.

[0036] Then, the fixing bolt 231 is rotated to make the rod of the fixing bolt 231 separate from the ventilation pipe 2 , thereby realizing the removal of the blocking plate 22 from the ventilation pipe 2 .

[0037] A moving rod 7 for moving the honeycomb activated carbon block 5 is provided in the ventilation pipe 2, and the moving rod 7 is set in an E shape. The moving rod 7 abuts against the honeycomb activated carbon block 5 near the side of the limiting rod 61, and two moving rods 7 are provided and are respectively located on both sides of the honeycomb activated carbon block 5. A driving component 8 for driving the moving rod 7 to move toward the side of the inspection port 21 is provided in the ventilation pipe 2.

[0038] The driving assembly 8 includes a driving rod 81. A slide groove 24 is provided on the side wall of the ventilation pipe 2 opposite to the driving rod 81. The slide groove 24 is arranged along the length direction of the ventilation pipe 2. The driving rod 81 is slidably connected in the slide groove 24. One end of the driving rod 81 is fixedly connected to the moving rod 7, and the other end of the moving rod 7 is fixedly connected to a pull rope 82.

[0039] Therefore, when the inspection port 21 is opened, the driving rod 81 can be driven by the pull rope 82 to move along the length direction of the ventilation pipe 2, and the moving rod 7 drives the honeycomb activated carbon block 5 to move toward the side of the inspection port 21, so that multiple honeycomb activated carbon blocks 5 fall from the inspection port 21 in sequence. At the same time, in order to facilitate the re-addition of activated carbon into the ventilation pipe 2, a return spring 9 is provided on the side of the driving rod 81 away from the moving rod 7, one end of the return spring 9 is fixedly connected to the inner wall of the ventilation pipe 2, and the other end of the return spring 9 is fixedly connected to the driving rod 81. Under the action of the return spring 9, the driving rod 81 is kept in the side of the slide groove 24 away from the inspection port 21.

[0040] The implementation principle of the embodiment of the present application is: when the exhaust fan 3 exhausts air to the outside of the house body 1, the honeycomb activated carbon block 5 can adsorb the sticky oil fume pollutants in the air before entering the exhaust fan 3. When the honeycomb activated carbon block 5 needs to be replaced, the blocking plate 22 can be removed from the inspection port 21 by rotating the fixing bolt 231, and the driving rod 81 can be driven by the pull rope 82 to move along the length direction of the ventilation pipe 2, so that multiple honeycomb activated carbon blocks 5 fall from the inspection port 21 in turn, and then activated carbon is added to the ventilation pipe 2 again.

[0041] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fresh air system suitable for a canteen, comprising a plurality of ventilation pipes (2) installed on a building body (1), characterized in that: An exhaust fan (3) and a preliminary filter (4) are installed on one side of the ventilation pipe (2) close to the outside of the house body (1); a honeycomb activated carbon block (5) is provided on one side of the ventilation pipe (2) close to the inside of the house body (1); a limit assembly (6) for limiting the position of the honeycomb activated carbon block (5) in the ventilation pipe (2) is provided in the ventilation pipe (2); an inspection opening (21) for replacing the honeycomb activated carbon block (5) is provided on the ventilation pipe (2); a blocking plate (22) and a fixing assembly (23) for fixing the blocking plate (22) to the inspection opening (21) are provided at the inspection opening (21).

2. A fresh air system suitable for a canteen according to claim 1, characterized in that: The ventilation pipe (2) is arranged to be tilted downward on a side close to the outside of the house body (1).

3. A fresh air system suitable for a canteen according to claim 2, characterized in that: The limiting assembly (6) comprises a plurality of limiting rods (61), the limiting rods (61) being fixedly connected in the ventilation pipe (2), and the honeycomb activated carbon block (5) being in abutment with the limiting rods (61).

4. A fresh air system suitable for a canteen according to claim 1, characterized in that: The fixing assembly (23) comprises a plurality of fixing bolts (231), wherein the fixing bolts (231) are simultaneously threadedly connected to the blocking plate (22) and the ventilation pipe (2).

5. A fresh air system suitable for a canteen according to claim 3, characterized in that: The honeycomb activated carbon block (5) is arranged in plurality, and the plurality of honeycomb activated carbon blocks (5) are arranged along the length direction of the ventilation pipe (2).

6. A fresh air system suitable for a canteen according to claim 5, characterized in that: A moving rod (7) for moving the honeycomb activated carbon block (5) is provided in the ventilation pipe (2), the moving rod (7) abuts against the honeycomb activated carbon block (5) on the side close to the limiting rod (61), and a driving component (8) for driving the moving rod (7) to move toward the side of the inspection port (21) is provided in the ventilation pipe (2).

7. A fresh air system suitable for a canteen according to claim 6, characterized in that: The driving assembly (8) comprises a driving rod (81), one end of which is fixedly connected to the moving rod (7), the driving rod (81) is slidably connected to the inner wall of the ventilation pipe (2), and the other end of the moving rod (7) is fixedly connected to a pull rope (82).

8. A fresh air system suitable for a canteen according to claim 7, characterized in that: A return spring (9) is provided on the side of the driving rod (81) away from the moving rod (7); one end of the return spring (9) is fixedly connected to the inner wall of the ventilation pipe (2), and the other end of the return spring (9) is fixedly connected to the driving rod (81).

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