UV photolysis photo-oxidation air deodorization module for smoke-pipe-free range hood
The UV photolysis module with staggered air passages and UV lamps in wide sections addresses the issue of incomplete purification by extending smoke exposure time, enhancing the degradation of harmful gases and odors in smokeless range hoods.
Patent Information
- Application Number
- CN202421048840.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Existing UV photolysis modules in smokeless range hoods have insufficient purification time due to fast smoke passage, leading to incomplete degradation of harmful gases and odors.
The module incorporates a frame with staggered air passages of narrow and wide sections, slowing down smoke flow through baffles to extend purification time, and features UV lamps positioned in the wide sections for enhanced degradation.
The staggered airway design increases the time smoke spends in UV exposure, improving the purification of harmful gases and odors by ensuring thorough decomposition.
Smart Images
Figure CN222286846U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of range hoods, in particular to a UV photolysis and photo-oxygen air deodorization module for a smokeless range hood. Background Art
[0002] UV photolysis uses high-energy UV (ultraviolet) light to decompose substances and oxygen molecules in the air to produce free oxygen, i.e., active oxygen, which combines with oxygen molecules to produce ozone. High-energy ultraviolet rays and ozone are used to perform synergistic photolysis and oxidation on odorous gases, so that odorous gas substances are degraded and converted into low-molecular chemicals, water and carbon dioxide, and then discharged to the outside through the exhaust duct. Therefore, UV photolysis technology is widely used in existing smokeless duct range hoods. It is usually set behind the oil fume particle filtering device to purify residual harmful gases and odors.
[0003] The existing UV photolysis module used in smokeless range hoods usually has multiple UV front and rear lamps installed in parallel on a frame, and the smoke passes through the module from left to right. Since UV photolysis takes a certain amount of time, the speed at which smoke passes through the existing UV photolysis module is fast and the UV photolysis time is short, making it difficult to ensure that harmful gases and odors are completely purified. Utility Model Content
[0004] The utility model aims to provide a UV photolysis and photo-oxygen air deodorization module for smokeless range hoods, which slows down the flow rate of smoke when it enters a wide section from a narrow section through air passages with staggered widths in sequence, thereby improving the purification effect of the smoke through the UV lamps in the wide section.
[0005] The technical solution adopted by the utility model to solve the above problems is:
[0006] The UV photolysis and photo-oxygen air deodorization module for smokeless range hoods comprises a frame, a baffle and a UV lamp. A plurality of baffles are provided and are arranged side by side in the frame at equal intervals. An airway is formed between adjacent baffles. The airway comprises a narrow section and a wide section. The airway is arranged in a staggered manner from the front side to the back side of the frame in the form of narrow sections and wide sections. The UV lamp is vertically inserted in the wide section.
[0007] In the above technical solution, preferably, a ballast is provided at the upper end of the frame, a conductive contact is provided at the upper end of the UV lamp, the UV lamp is inserted into the frame and the upper end of the UV lamp is fixed to the upper side of the frame by screws.
[0008] In the above technical solution, preferably, a top cover is provided at the upper end of the frame, the top cover and the frame are connected and fixed by a plurality of movable buckles, and the upper ends of the ballast and the UV lamp are both located on the inner side of the top cover.
[0009] In the above technical solution, preferably, a strip-shaped fixing seat is provided at the bottom end of the frame, and the lower ends of a plurality of UV lamp tubes located in the same airway are all inserted into the same fixing seat.
[0010] In the above technical solution, preferably, a reflective coating is provided on the left and right sides of the baffle.
[0011] In the above technical solution, preferably, the cross-sections of the left and right sides of the baffle are arc surfaces with concave and convex portions alternating in sequence, the arc surfaces on both sides of the wide section are located on the same cylinder, and the vertical axis of the UV lamp tube coincides with the axis of the cylinder where the arc surfaces on both sides of the wide section are located.
[0012] Compared with the prior art, the utility model has the following advantages and effects:
[0013] The utility model forms an airway with front and rear widths staggered in sequence through a plurality of baffles. When smoke enters the airway from the front side of the frame, it first enters the narrow section and then the wide section. According to Bernoulli's principle, the flow rate of smoke will slow down after entering the wide section, thereby extending the time for smoke to pass through the wide section. Therefore, by arranging a UV lamp in the wide section, the smoke can have more sufficient time to be purified in the wide section, thereby improving the purification effect of harmful gases and odors in the smoke. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a front structural schematic diagram of a UV photolysis and photo-oxygen air deodorization module for a smokeless range hood according to an embodiment of the utility model.
[0015] Figure 2 yes Figure 1 Top view after the top cover is removed.
[0016] Figure 3 yes Figure 2 Schematic diagram of the internal structure of the middle frame and the direction of smoke flow.
[0017] Figure 4 yes Figure 1 Schematic diagram of the structure of a medium UV lamp.
[0018] Among them, there are a frame 1, a top cover 11, a movable buckle 12, a fixing seat 13, a baffle 2, a UV lamp tube 3, a conductive contact 31, an airway 4, a narrow section 41, a wide section 42, and a ballast 5. DETAILED DESCRIPTION
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.
[0020] See also Figure 1-Figure 4The UV photolysis and photo-oxygen air deodorization module for smokeless range hoods of this embodiment includes a frame 1, a baffle 2 and a UV lamp 3. The baffle 2 is provided with a plurality of baffles and is arranged side by side in the frame 1 at equal intervals. An airway 4 is formed between adjacent baffles 2. The airway 4 includes a narrow section 41 and a wide section 42. The airway 4 is staggered in sequence from the front side to the back side of the frame 1 with the narrow section 41 and the wide section 42, and the UV lamp 3 is vertically inserted in the wide section 42.
[0021] The utility model forms an airway 4 with front and rear widths staggered in sequence through a plurality of baffles 2. When smoke enters the airway 4 from the front side of the frame 1, it first enters the narrow section 41 and then enters the wide section 42. According to the Bernoulli principle, the flow velocity of the smoke will slow down after entering the wide section 42, thereby extending the time for the smoke to pass through the wide section 42. Therefore, by arranging the UV lamp 3 in the wide section 42, the smoke can have a relatively sufficient time to be purified in the wide section 42, thereby improving the purification effect of the odor of harmful gases in the smoke.
[0022] See also Figure 2 , Figure 4 A ballast 5 is disposed at the upper end of the frame 1, a conductive contact 31 is disposed at the upper end of the UV lamp tube 3, the UV lamp tube 3 is inserted into the frame 1 and the upper end of the UV lamp tube 3 is fixed to the upper side of the frame 1 by screws.
[0023] The ballast 5 is the core component of the UV lamp tube 3, and its function is to convert the unstable current provided by the power supply into a stable direct current, and at the same time provide a high-frequency pulse to make the UV lamp tube 3 work. The utility model inserts and fixes the UV lamp tube 3 on the frame 1, and at the same time makes the conductive contact 31 end of the UV lamp tube 3 and the ballast 5 located on the same side of the frame 1, thereby facilitating the wiring between the ballast 5 and the UV lamp tube 3; the UV lamp tube 3 is installed on the frame 1 by plugging and fixing with screws, which also makes it convenient to directly remove the screws from the frame 1 and replace the UV lamp tube 3 when the UV lamp tube 3 is damaged, thereby facilitating the later maintenance of the utility model.
[0024] See also Figure 1 , Figure 2 A top cover 11 is disposed at the upper end of the frame 1 , and the top cover 11 and the frame 1 are connected and fixed via a plurality of movable buckles 12 , and the upper ends of the ballast 5 and the UV lamp tube 3 are both located on the inner side of the top cover 11 .
[0025] The cover plate used to cover the ballast 5 on the existing UV photolysis module is usually fixed to the frame 1 by screws, which is inconvenient for later maintenance of the ballast 5 or the UV lamp 3. Therefore, in the utility model, the top cover 11 and the frame 1 are connected by a movable buckle 12, which has the advantage of easy disassembly and assembly, and is convenient for the later maintenance of the utility model.
[0026] See also Figure 1 , Figure 3 A strip-shaped fixing seat 13 is disposed at the bottom end of the frame 1 , and the lower ends of the plurality of UV lamp tubes 3 in the same air duct 4 are all inserted into the same fixing seat 13 .
[0027] When the UV lamp tube 3 is inserted into the frame body 1 from the upper side of the frame body 1, and the upper end of the UV lamp tube 3 is against the upper side surface of the frame body 1, the lower end of the UV lamp tube 3 is inserted into the fixing seat 13, so that the fixing seat 13 limits the lower end of the UV lamp tube 3, thereby improving the stability of the UV lamp tube 3 when the frame body 1 shakes, thereby reducing the probability of damage to the UV lamp tube 3, and the fixing seat 13 can also play a positioning role when installing the UV lamp tube 3, so that the UV lamp tube 3 is placed stably and it is convenient to screw on the screws to fix the UV lamp tube 3 on the frame body 1.
[0028] The left and right sides of the baffle 2 are provided with a reflective coating, so that most of the ultraviolet rays emitted by the UV lamp 3 can be reflected on the side of the baffle 2, reducing the absorption rate of the baffle 2 to ultraviolet rays, increasing the ultraviolet intensity in the airway 4, and thus improving the purification effect of harmful gases and odors.
[0029] See also Figure 3 The cross-sections of the left and right sides of the baffle 2 are arc surfaces with concave and convex portions alternating in sequence, the arc surfaces on both sides of the wide section 42 are located on the same cylinder, and the vertical axis of the UV lamp tube 3 coincides with the axis of the cylinder where the arc surfaces on both sides of the wide section 42 are located.
[0030] Part of the ultraviolet rays emitted by the UV lamp tube 3 can be projected onto the arc surfaces on both sides of the wide section 42 and reflected. Since the UV lamp tube 3 is located at the center of the arc surfaces on both sides of the wide section 42, most of the ultraviolet rays reflected by the arc surfaces on both sides of the wide section 42 will still be reflected back into the wide section 42, thereby increasing the intensity of the ultraviolet rays in the wide section 42. Since the flow rate of the flue gas in the wide section 42 is relatively slow, the higher intensity ultraviolet rays in the wide section 42 can purify the harmful gases and odors in the flue gas, thereby improving the purification effect of the utility model on the flue gas.
[0031] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.
Claims
1. UV photolysis and photo-oxygen air deodorization module for smokeless range hoods, characterized by: The invention comprises a frame, a baffle and a UV lamp. A plurality of baffles are provided and are arranged side by side at equal intervals in the frame. An airway is formed between adjacent baffles. The airway comprises a narrow section and a wide section. The airway is arranged alternately in sequence from the front side to the back side of the frame in the form of narrow sections and wide sections. The UV lamps are vertically inserted in the wide sections.
2. The UV photolysis and photo-oxygen air deodorization module for smokeless range hood according to claim 1 is characterized in that: The upper end of the frame is provided with a ballast, the upper end of the UV lamp is provided with a conductive contact, the UV lamp is inserted into the frame and the upper end of the UV lamp is fixed to the upper side of the frame by screws.
3. The UV photolysis and photo-oxygen air deodorization module for smokeless range hood according to claim 1, characterized in that: A top cover is arranged at the upper end of the frame, and the top cover and the frame are connected and fixed by a plurality of movable buckles, and the upper ends of the ballast and the UV lamp tube are both located on the inner side of the top cover.
4. The UV photolysis and photo-oxygen air deodorization module for smokeless range hood according to claim 1, characterized in that: A strip-shaped fixing seat is arranged at the bottom end of the frame body, and the lower ends of a plurality of UV lamp tubes in the same airway are all inserted into the same fixing seat.
5. The UV photolysis and photo-oxygen air deodorization module for smokeless range hood according to claim 1, characterized in that: The left and right sides of the baffle are provided with reflective coatings.
6. The UV photolysis and photo-oxygen air deodorization module for smokeless range hood according to claim 1, characterized in that: The cross-sections of the left and right sides of the baffle are arc surfaces with alternating concave and convex shapes, the arc surfaces on both sides of the wide section are located on the same cylinder, and the vertical axis of the UV lamp coincides with the axis of the cylinder where the arc surfaces on both sides of the wide section are located.