A fume collecting hood for exhausting oil fume in hotel canteen kitchen
By designing a smoke collecting hood for hotel canteen kitchens, using curved oil guide plates and oil guide fins for filtration and separation of oil smoke, combined with hot water flushing and fire extinguishing functions, the existing smoke collecting boxes are solved, and the effects of flexible installation, convenient cleaning and emergency fire extinguishing are achieved.
Patent Information
- Application Number
- CN202510025999.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-04-04
AI Technical Summary
The existing smoke-polluting box is filtered and separated through a filter, which leads to inconvenience in cleaning, prone to stubborn oil stains, and is prone to fire when in contact with the fire.
A smoke collecting hood for hotel canteen kitchens is designed, and the curved oil guide plates and oil guide fins are used to filter and separate the oil smoke. The oil accumulation space is easy to clean, and it is connected to the hot water and fire extinguishing tank through metal pipes to realize hot water flushing and emergency fire extinguishing.
It realizes flexibility in low-rise high-installation, the arc-shaped oil guide plate is easy to clean, the oil guide fins prevent oil smoke from dripping, and can achieve emergency fire extinguishing, reducing the risk of fire.
Smart Images

Figure CN119755688A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of oil fume purification, in particular to a fume collecting hood for exhausting oil fume used in a hotel canteen kitchen. Background Art
[0002] With the improvement of living standards, range hoods have gradually become one of the indispensable appliances in people's kitchens. Range hoods work on the principle of fluid dynamics, exhausting oil fumes through a fan installed inside the range hood, and using a smoke collection box to gather oil fumes and separate some grease particles.
[0003] Existing smoke collecting boxes generally filter and separate oil smoke through filters. This separation method is not convenient for cleaning the smoke collecting box and the filter, and is prone to the generation of stubborn oil stains. At the same time, the stubborn oil stains come into contact with fire, which is prone to fire risks. Summary of the invention
[0004] The problem to be solved by the present invention is to provide a smoke collecting hood for exhausting oil smoke for a hotel cafeteria kitchen, which solves the technical problem that the existing smoke collecting box generally filters and separates the oil smoke through a filter, this separation method is not convenient for cleaning the smoke collecting box and the filter, and stubborn oil stains are likely to be generated. At the same time, the stubborn oil stains come into contact with fire, which easily leads to the risk of fire.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions:
[0006] A fume collecting hood for exhausting oil smoke for a hotel cafeteria kitchen comprises a box body, wherein the box body comprises two front panels and a back panel arranged vertically and in parallel, an arc-shaped oil guide plate is installed at the bottom ends of the front panel and the back panel, a long strip of smoke exhaust port is opened on the top side of the arc-shaped oil guide plate, a first top panel and a second top panel are installed at the top ends of the front panel and the back panel, side panels are installed on both sides of the front panel, the back panel, the arc-shaped oil guide plate, the first top panel and the second top panel, oil accumulation space is arranged between the two ends of the arc-shaped oil guide plate and the front panel, the back panel and the side panels, oil guide fins are arranged on the bottom sides of the first top panel and the second top panel, metal pipes are installed through the first top panel and the second top panel, and the two metal pipes are distributed in a figure eight shape.
[0007] Preferably, the first top plate is symmetrically mounted with a first right-angle mounting block, and the first right-angle mounting block is connected to a steel wire rope connected to the ceiling via a hook.
[0008] Preferably, second right-angle mounting blocks are symmetrically mounted on the second top plate, and expansion screws penetrate the second right-angle mounting blocks and are mounted on the wall.
[0009] Preferably, the oil accumulation space is connected to the oil unloading nozzle, and a plug is installed on the oil unloading nozzle.
[0010] Preferably, the top end of the metal pipe is connected to a hot water pipe and a fire extinguishing water tank.
[0011] Preferably, any one of the front panel, the first top panel, the second top panel and the side panels is provided with a smoke exhaust hole.
[0012] Preferably, the specific operating steps of the built-in smoke collecting box are as follows:
[0013] Step 1: Connect the steel wire rope connected to the ceiling through the first right-angle mounting block through a hook, and install it to the wall through the second right-angle mounting block through expansion screws. Open a smoke exhaust hole on any one of the front panel, the first top panel, the second top panel, and the side panel and connect it to the smoke exhaust pipe;
[0014] Step 2: The oil smoke rises and is guided by the arc-shaped oil guide plate, enters the box from the exhaust port, and is discharged through the exhaust pipe. The oil in the oil smoke drips onto the top side of the arc-shaped oil guide plate through the oil guide fins, slides down along the top side of the arc-shaped oil guide plate, and is collected into the oil accumulation space. The plug is opened, and the drain pipe is connected to the oil discharge nozzle to discharge the waste oil.
[0015] Step 3: Rinse the inside of the box with hot water through a metal pipe. Water and oil will gather in the oil accumulation space and be discharged to the kitchen ditch through a sewage pipe to discharge the dirty oil and water. Add a degreasing agent to the hot water to clean stubborn oil stains. If the fire is too high and accidentally burns into the box, an emergency fire extinguishing function can be realized. The metal pipe is connected to the fire extinguishing water tank, and the fire extinguishing agent is sprayed out through the metal pipe to extinguish the fire.
[0016] The beneficial effects of the present invention are:
[0017] The built-in smoke collecting box can be installed at a low height, replacing the traditional installation method where the smoke collecting pipe needs to be connected above the smoke hood. Holes can be opened at different positions of the box to connect to the smoke exhaust pipe according to the site height.
[0018] The arc-shaped oil guide plate replaces the traditional grille oil net, which is easy to clean and does not need to be removed for soaking and cleaning. The arc-shaped oil guide plate can better gather smoke and guide the smoke into the long strip smoke exhaust port. The oil guide fins are set to prevent the smoke from dripping from the smoke exhaust port.
[0019] It is convenient to clean the inner compartment and can realize emergency fire extinguishing. Hot water is connected through the metal pipe to flush the inside of the box with hot water. Water and oil gather in the oil accumulation space. Open the plug and insert the sewage pipe to connect to the kitchen ditch drainage channel to discharge the dirty oil and water. Connect the metal pipe to the fire extinguishing water tank and spray the fire extinguishing agent through the metal pipe to realize fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0021] Figure 2 It is a cross-sectional view of the present invention.
[0022] Legend:
[0023] 1. Box body; 2. First right-angle mounting block; 3. Second right-angle mounting block; 4. Front face plate; 5. Back plate; 6. Curved oil guide plate; 7. Smoke exhaust port; 8. Oil accumulation space; 9. Oil discharge nozzle; 10. Plug; 11. First top plate; 12. Second top plate; 13. Oil guide fins; 14. Metal pipe; 15. Side plate. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0025] Specific examples are given below.
[0026] See also Figure 1 and Figure 2 A fume collecting hood for exhausting oil fume for a hotel canteen kitchen comprises a box body 1, which comprises two front panels 4 and a back panel 5 arranged vertically and in parallel, an arc-shaped oil guide plate 6 is installed at the bottom of the front panel 4 and the back panel 5, and a long strip-shaped smoke exhaust port 7 is opened on the top side of the arc-shaped oil guide plate 6, a first top panel 11 and a second top panel 12 are installed at the top of the front panel 4 and the back panel 5, and side panels 15 are installed on both sides of the front panel 4, the back panel 5, the arc-shaped oil guide plate 6, the first top panel 11 and the second top panel 12, and oil accumulation spaces 8 are arranged between the two ends of the arc-shaped oil guide plate 6 and the front panel 4, the back panel 5 and the side panels 15, oil guide fins 13 are arranged on the bottom sides of the first top panel 11 and the second top panel 12, and metal pipes 14 are installed through the first top panel 11 and the second top panel 12, and the two metal pipes 14 are distributed in an eight-shaped shape.
[0027] A first right-angle mounting block 2 is symmetrically mounted on the first top plate 11, and the first right-angle mounting block 2 is connected to the steel wire rope connected to the ceiling via a hook, a second right-angle mounting block 3 is symmetrically mounted on the second top plate 12, and expansion screws penetrate the second right-angle mounting block 3 and are mounted on the wall to achieve the installation of the box 1.
[0028] The oil accumulation space 8 is connected to the oil unloading nozzle 9, and a plug 10 is installed on the oil unloading nozzle 9. Opening the plug 10 facilitates connecting the oil unloading nozzle 9 to the sewage pipe, thereby discharging the internal waste oil or sewage generated by cleaning into the kitchen ditch drainage channel.
[0029] The top of the metal pipe 14 is connected to the hot water pipe and the fire extinguishing water tank. When the metal pipe 14 is connected to the hot water pipe, it is convenient to clean the inside of the box 1 with hot water. When the metal pipe 14 is connected to the fire extinguishing water tank, it is convenient to extinguish the fire inside the box 1 with a fire extinguishing agent.
[0030] Any one of the front panel 4, the first top panel 11, the second top panel 12 and the side panel 15 is provided with a smoke exhaust hole, so that the smoke exhaust hole is connected to the smoke exhaust pipe, and the smoke exhaust pipe is connected to the smoke exhaust fan.
[0031] The specific operation steps of the built-in smoke collection box are as follows:
[0032] Step 1: Connect the box body 1 to the ceiling through the first right-angle mounting block 2 with a steel wire rope through a hook, and install it to the wall through the second right-angle mounting block 3 with expansion screws, and open a smoke exhaust hole in any one of the front panel 4, the first top panel 11, the second top panel 12 and the side panel 15 to connect the smoke exhaust pipe;
[0033] Step 2: The oil smoke rises and is guided by the arc-shaped oil guide plate 6, enters the box body 1 from the exhaust port 7, and is discharged through the exhaust pipe. The oil in the oil smoke drips onto the top side of the arc-shaped oil guide plate 6 through the oil guide fins 13, slides down along the top side of the arc-shaped oil guide plate 6, and is collected into the oil accumulation space 8. The plug 10 is opened, and the drain pipe is connected to the oil discharge nozzle 9 to discharge the waste oil.
[0034] Step three: Use hot water to rinse the inside of the box body 1 through the metal pipe 14. Water and oil will gather in the oil accumulation space 8 and be discharged to the kitchen ditch drainage channel through the sewage pipe to discharge the dirty oil water. Add degreasing agent to the hot water to clean the stubborn oil stains. If the fire is too high and accidentally burns into the box body 1, an emergency fire extinguishing function can be realized. The metal pipe 14 is connected to the fire extinguishing water tank, and the fire extinguishing agent is sprayed through the metal pipe 14 to extinguish the fire.
[0035] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A fume hood for exhausting oil fume in a hotel canteen kitchen, characterized in that: The box body (1) comprises two front panels (4) and a back panel (5) arranged vertically and in parallel, the bottom ends of the front panel (4) and the back panel (5) are provided with an arc-shaped oil guide plate (6), the top side of the arc-shaped oil guide plate (6) is provided with a long strip-shaped smoke exhaust port (7), the top ends of the front panel (4) and the back panel (5) are provided with a first top panel (11) and a second top panel (12), the front panel (4), the back panel (5), the arc-shaped oil guide plate (6), the first top panel (11) and the second top panel (12) are provided with a first top panel (11) and a second top panel (12) Side plates (15) are installed on both sides of the plate (11) and the second top plate (12); oil accumulation spaces (8) are provided between the two ends of the arc-shaped oil guide plate (6) and the front face plate (4), the back plate (5) and the side plates (15); oil guide fins (13) are provided on the bottom sides of the first top plate (11) and the second top plate (12); metal tubes (14) are installed through the first top plate (11) and the second top plate (12), and the two metal tubes (14) are distributed in an eight-shaped shape.
2. The fume hood for exhausting oil fume in a hotel canteen kitchen according to claim 1, characterized in that: A first right-angle mounting block (2) is symmetrically mounted on the first top plate (11), and the first right-angle mounting block (2) is connected to a steel wire rope connected to the ceiling via a hook.
3. The fume hood for exhausting oil fume in a hotel canteen kitchen according to claim 2, characterized in that: A second right-angle mounting block (3) is symmetrically mounted on the second top plate (12), and expansion screws penetrate the second right-angle mounting block (3) and are mounted on the wall.
4. The fume hood for exhausting oil fume in a hotel canteen kitchen according to claim 3, characterized in that: The oil accumulation space (8) is connected to an oil discharge nozzle (9), and a plug (10) is installed on the oil discharge nozzle (9).
5. The fume hood for exhausting oil fume in a hotel canteen kitchen according to claim 4, characterized in that: The top end of the metal pipe (14) is connected to a hot water pipeline and a fire extinguishing water tank.
6. The fume hood for exhausting oil fume in a hotel canteen kitchen according to claim 5, characterized in that: Any one of the front panel (4), the first top panel (11), the second top panel (12) and the side panel (15) is provided with a smoke exhaust hole.
7. The fume hood for exhausting oil fume in a hotel canteen kitchen according to claim 6, characterized in that: The specific operation steps of the built-in smoke collection box are as follows: Step 1: The box body (1) is connected to the ceiling through the first right-angle mounting block (2) by a steel wire rope through a hook, and is installed to the wall through the second right-angle mounting block (3) by expansion screws, and any one of the front panel (4), the first top panel (11), the second top panel (12) and the side panel (15) is provided with a smoke exhaust hole and connected to the smoke exhaust pipe; Step 2: The oil smoke rises and is guided by the arc-shaped oil guide plate (6), enters the box body (1) from the exhaust port (7), and is discharged through the exhaust pipe. The oil in the oil smoke drips onto the top side of the arc-shaped oil guide plate (6) through the oil guide fins (13), slides down along the top side of the arc-shaped oil guide plate (6), and is collected in the oil accumulation space (8). The plug (10) is opened, and the drain pipe is connected to the oil discharge nozzle (9) to discharge the waste oil. Step 3: Use hot water to flush the inside of the box (1) through the metal pipe (14), and the water and oil will gather in the oil accumulation space (8), and then be discharged to the kitchen ditch drainage channel through the sewage pipe to discharge the dirty oil water. Add a degreasing agent to the hot water to clean the stubborn oil stains. If the fire is too high and accidentally burns into the box (1), an emergency fire extinguishing function can be realized. The metal pipe (14) is connected to the fire extinguishing water tank, and the fire extinguishing agent is sprayed out through the metal pipe (14) to extinguish the fire.