Variable frequency UV smoke hood

Abstract

The utility model provides a variable frequency UV smoke cover relates to kitchen utensil field. This variable frequency UV smoke cover, including the air draught storehouse, fresh air storehouse, lighting group, left side board, right side board and hoist channel steel, the air draught storehouse includes lighting component, filter screen, light barrier and air draught flange, the fresh air storehouse includes fresh air diffusion board, air curtain machine, electrical sub -control box, fresh air flange and electric air valve executor. This variable frequency UV smoke cover can adjust the running speed of fan motor in real time, truly achieves "distributes according to needs", solves almost all pain points of fixed frequency smoke cover, A, the energy -conserving effect is remarkable, greatly reduces operating cost, through the temperature sensor installed on the smoke cover, system real -time monitoring exhaust demand. When the oil fume is big, high -speed operation, oil fume hour is automatically reduced to low speed, usually can realize 30% 50% of the power saving rate, B, noise level is reduced greatly, improves the working environment, when the kitchen is idle, fan low -speed operation, noise is reduced significantly, creates a more quiet, more comfortable working environment for the chef.

Description

Technical Field

[0001] This utility model relates to the field of kitchenware technology, specifically to a frequency conversion UV fume hood. Background Technology

[0002] Existing UV fume hoods operate in conjunction with fixed-frequency exhaust fans and cannot automatically adjust according to the actual working conditions of the kitchen (such as the amount of oil fumes generated), which has the following drawbacks:

[0003] A. High energy consumption and huge operating costs

[0004] To ensure effective smoke extraction during peak hours (such as stir-frying and deep-frying), the fan power must be designed to meet maximum demand. However, during off-peak hours (such as food preparation, stewing, and cleaning), the amount of oil fumes is very small, yet the fan still runs at full speed, resulting in a huge waste of electricity.

[0005] B. Extremely noisy and harsh working environment

[0006] The constant operation of the fan at full speed generates continuous high-decibel noise, which negatively impacts the health (such as hearing and mood) of kitchen staff and makes communication between the front and back of house difficult.

[0007] C. Excessive sampling

[0008] When the kitchen is operating at low load, strong suction can lead to excessive exhaust. This can draw away a large amount of air conditioning or heating from the restaurant, resulting in secondary energy waste and creating a strong draft in the kitchen, making the chefs feel uncomfortable.

[0009] D. High mechanical impact affects equipment lifespan.

[0010] A fixed-frequency motor experiences a large current surge during startup, which can damage both the power grid and the motor itself.

[0011] The fan is constantly running at its highest speed, causing faster wear on mechanical components such as bearings and shortening its overall service life.

[0012] E. Lack of intelligent features, inconvenient management

[0013] It cannot be integrated with fire protection systems, air conditioning systems, etc., making it difficult to achieve modern smart kitchen management.

[0014] To address the aforementioned issues and keep pace with the major trend of energy conservation and environmental protection, we have launched the intelligent variable frequency UV fume hood. Utility Model Content

[0015] The purpose of this invention is to provide a variable frequency UV fume hood that solves the problems mentioned in the background art.

[0016] Technical solution

[0017] To achieve the above objectives, this utility model is implemented through the following technical solution: a variable frequency UV fume hood, comprising an exhaust chamber, a fresh air chamber, a lighting assembly, a left side plate, a right side plate, and a hoisting channel steel. The exhaust chamber includes a lighting assembly, an oil filter, a light-blocking plate, and an exhaust flange. The fresh air chamber includes a fresh air diffuser, an air curtain machine, an electrical control box, a fresh air flange, and an electric air valve actuator.

[0018] Furthermore, the ventilation chamber is equipped with a wind pressure unit.

[0019] Furthermore, a junction box is installed on the fresh air chamber.

[0020] Furthermore, a temperature probe is installed on the lighting assembly.

[0021] Furthermore, the junction box is connected to a control box, which includes a touch screen, switch buttons, emergency stop button, PLC, circuit breaker, fuse, contactor, and relay. It is a device for controlling the start and stop of the fume hood and air handling unit, and provides various parameter setting functions.

[0022] This invention provides a variable frequency UV fume hood. It has the following beneficial effects:

[0023] This variable frequency UV fume hood can adjust the operating speed of the fan motor in real time, truly achieving "on-demand allocation" and solving almost all the pain points of fixed frequency fume hoods. A. It has a significant energy-saving effect, greatly reducing operating costs. Through the temperature sensor installed on the fume hood, the system monitors the smoke exhaust demand in real time. A. High-speed operation when there is heavy oil fumes, and automatic reduction to low speed when there is less oil fumes, typically achieving a 30%-50% energy saving rate. B. Significantly reduced noise level, improving the working environment. When the kitchen is not busy, the fan runs at low speed, significantly reducing noise and creating a quieter and more comfortable working environment for chefs. C. Superior smoke extraction effect, improving environmental comfort. Avoiding excessive extraction, effectively maintaining the negative pressure balance in the kitchen and dining area, saving air conditioning energy consumption, and preventing the unnecessary extraction of cold / hot air, thus improving indoor environmental comfort. D. Soft start and soft stop, extending equipment life. Smooth start: The frequency converter allows the motor to start slowly, reducing current surges, being grid-friendly, and protecting the motor. Reduced mechanical wear: The fan does not run at its highest speed most of the time, greatly reducing wear on mechanical parts, effectively extending the overall life of the fan and motor, and reducing maintenance costs. E. Intelligent and automated, facilitating integrated management. Providing a 485 communication interface, it can be easily linked with fire protection systems and even connected to building automation systems to achieve intelligent and refined management of kitchen equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the control box of this utility model.

[0026] The components include: 1. Exhaust chamber, 2. Fresh air chamber, 3. Lighting assembly, 4. Left side panel, 5. Right side panel, 6. Lifting channel steel, 7. Air pressure assembly, 8. Fresh air flange, 9. Electric air valve actuator, 10. Junction box, 11. Exhaust flange, 12. Temperature probe, and 13. Lighting assembly. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] like Figure 1-2As shown, this utility model embodiment provides a variable frequency UV fume hood, including an exhaust chamber 1, a fresh air chamber 2, a lighting assembly 3, a left side plate 4, a right side plate 5, and a hoisting channel steel 6. The left side plate 4 and right side plate 5 are located at opposite ends of the fume hood, stabilizing the main structure and providing a side air curtain function to prevent oil fumes from overflowing. An air pressure assembly 7 is installed on the exhaust chamber 1, a junction box 10 is installed on the fresh air chamber 2, and a temperature probe 12 is installed on the lighting assembly 3. A control box is connected to the junction box 10. The control box includes a touch screen, switch buttons, an emergency stop button, a PLC, a circuit breaker, a fuse, a contactor, and a relay. It is a device for controlling the start and stop of the fume hood and the fan cabinet, and provides various parameter setting functions. The exhaust chamber 1 includes... The lighting assembly 13, oil filter screen, light shield, and exhaust flange 11, and the fresh air chamber 2 include a fresh air diffuser, air curtain machine, electrical control box, fresh air flange 8, and electric air valve actuator 9. The fresh air chamber 2 provides fresh air to the kitchen and balances the kitchen air pressure. First, fix the exhaust chamber 1 to the left side plate 4 and the right side plate 5 with screws. Then connect the lighting assembly 3 to the exhaust chamber 1, the left side plate 4, and the right side plate 5. Then install the fresh air chamber 2. Finally, install the hoisting channel steel 6. After the entire fume hood is hoisted, install the UV lamp tube, oil filter screen, light shield, and other accessories. Each module is produced independently first, with reserved docking holes and welding nuts. Depending on the situation, you can choose to assemble the whole unit in the factory and then ship it, or ship each module separately to the site for final assembly.

[0032] Working Principle: The variable frequency UV fume hood integrates the UV fume hood, exhaust fan, and make-up air fan for coordinated control. Temperature probe 12 collects the operating status of the stove below the fume hood, and the signal is transmitted via the control box to the frequency converter and electric air valve actuator 9. This automatically adjusts the speed of the air handling unit motor and the valve opening, achieving a balance between the fume hood's exhaust effect and the air handling unit's operation. Simultaneously, the air pressure group 7 monitors the fume hood's operating status to control the start and stop of the UV module. For example, a 10-meter-long fume hood has 10 exhaust vents corresponding to 10 burners below. When only one burner is lit, the fume hood only opens one or two vents above the burner, and the air handling unit operates at only 15-20% of its normal frequency. The make-up air fan's frequency is synchronized with the exhaust fan's frequency. Pressing the start button on the control box illuminates the touchscreen, and the air handling unit and UV system automatically operate according to the stove's operating status. The UV components, lighting components 13, air handling unit operating status, energy-saving statistics, and alarm information can be controlled and monitored on the touchscreen.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable frequency UV fume hood, comprising an exhaust chamber (1), a fresh air chamber (2), a lighting assembly (3), a left side panel (4), a right side panel (5), and a hoisting channel steel (6), characterized in that: The exhaust chamber (1) includes a lighting assembly (13), an oil filter screen, a light shield and an exhaust flange (11), and the fresh air chamber (2) includes a fresh air diffuser, an air curtain machine, an electrical control box, a fresh air flange (8) and an electric air valve actuator (9).

2. The variable frequency UV fume hood according to claim 1, characterized in that: The ventilation chamber (1) is equipped with a wind pressure unit (7).

3. The variable frequency UV fume hood according to claim 1, characterized in that: A junction box (10) is installed on the fresh air chamber (2).

4. The variable frequency UV fume hood according to claim 1, characterized in that: A temperature probe (12) is installed on the lighting group (3).

5. The variable frequency UV fume hood according to claim 1, characterized in that: The junction box (10) is connected to a control box, which includes a touch screen, switch buttons, emergency stop button, PLC, circuit breaker, fuse, contactor, and relay. It is a device for controlling the start and stop of the fume hood and air handling unit, and provides various parameter setting functions.

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