Explosion-proof waterproof range hood

Abstract

The utility model discloses an explosion-proof waterproof range hood which comprises a purification box, a high-low voltage electric field area and a condensation assembly are arranged in the purification box, one end of the purification box is connected with a filter screen, the other end of the purification box is connected with a fan, and the condensation assembly is located between the filter screen and the high-low voltage electric field area and comprises an outer frame and a metal condensation filter screen located on the outer frame. The condensation filter screen comprises a plurality of filter holes, condensation plates are arranged on the two sides of the filter holes, first connecting plates and second connecting plates are arranged at the two ends of the two condensation plates correspondingly, the first connecting plates and the second connecting plates are located on the two sides of the ends of the condensation plates correspondingly, and the two condensation plates are parallel to each other and incline. Wherein the first connecting plate on one condensing plate is connected with the second connecting plate on the other condensing plate, the first connecting plate and the second connecting plate which are connected with each other at the same end are simultaneously connected with one condensing plate, water vapor in oil smoke is condensed after being in contact with the condensing plates, the condensing effect is good, and the service life is long.

Description

Technical Field

[0001] This utility model belongs to the technical field of oil fume purification equipment, and more specifically relates to an explosion-proof and water-proof oil fume hood. Background Technology

[0002] To meet emission standards, traditional commercial kitchen range hoods require high and low voltage electrical zones inside the hood. This is because external filters cannot filter all the oil fumes (large oil droplets and grease). The high and low voltage electrical zones are designed to separate a small portion of the oil fumes from the gas. The high voltage zone is mainly responsible for ionizing the oil fume particles. When oil fumes enter the high voltage zone, they are ionized into charged particles. When these charged oil fume particles enter the low voltage zone, they are adsorbed onto the electrode plates, achieving almost complete absorption of the oil fumes and ensuring that the filtered gas meets emission standards.

[0003] Since the high and low voltage electric fields are used to treat oil stains, if water vapor particles in the oil fumes enter the high and low voltage electric fields, it will affect the normal operation of the electric fields and also affect the service life of the fan. Therefore, it is necessary to install a water vapor removal device between the high and low voltage electric fields and the external filter plate. This generally includes installing a condensation component or using a spray method to remove water vapor particles from the oil fume gas.

[0004] However, most range hoods and fume purifiers currently use paper filters to remove moisture, and these filters are quite thick, resulting in a heavy weight. Furthermore, paper filters are prone to decay after absorbing moisture, leading to a short lifespan and high replacement costs due to frequent replacements. Additionally, wet paper filters are susceptible to mold growth in the gaps, which can affect food safety. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an explosion-proof and water-proof range hood that has a good condensation effect on oil fumes and a long service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof and water-proof range hood, comprising a purification box, wherein a high and low voltage electric field zone and a condensation assembly are provided inside the purification box, one end of the purification box is connected to a filter screen, and the other end is connected to a fan, the condensation assembly is located between the filter screen and the high and low voltage electric field zone, the condensation assembly includes an outer frame and a metal condensation filter screen located on the outer frame, the condensation filter screen includes a plurality of filter holes, and condensation plates are provided on both sides of the filter holes, and a first connecting plate and a second connecting plate are provided at both ends of the two condensation plates, and the first connecting plate and the second connecting plate are respectively located on both sides of the end of the condensation plate, the two condensation plates are parallel to each other and inclined, the first connecting plate on one condensation plate is connected to the second connecting plate on the other condensation plate, the first connecting plate and the second connecting plate connected to each other at the same end are simultaneously connected to a condensation plate, and the two condensation plates, the two first connecting plates and the two second connecting plates enclose and form filter holes.

[0007] Furthermore, the condensation filtering plane of the condensation filter is a plane composed of the sides of mutually parallel and inclined condensation plates, with the condensation plates forming an angle with the direction of airflow.

[0008] Furthermore, the first and second connecting plates are hinged to the condenser plate, and the size of the filter holes can be changed by rotating the first and second connecting plates.

[0009] Furthermore, the length of the condenser plate is greater than the length of the first connecting plate and the second connecting plate, and the width of the condenser plate is equal to the sum of the widths of the first connecting plate and the second connecting plate.

[0010] Furthermore, the condenser filter is made of aluminum.

[0011] Compared with the prior art, the beneficial effects of this utility model are: when the oil fumes filtered by the external oil fume filter of the range hood pass through the condenser filter, they condense into water droplets on the condenser plate after contacting the condenser plate which is inclined opposite to the airflow. The condensation effect is good and the service life is long. The inclined condenser plate reduces the obstruction of the airflow while ensuring effective contact with the airflow. At the same time, the water droplets at the condensation point on the condenser plate can drip down along the inclined condenser plate. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of the purification box in the explosion-proof and water-proof range hood of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the condenser filter in the explosion-proof and water-proof range hood of this utility model;

[0014] Figure 3 This is a schematic diagram of the condenser filter in the explosion-proof and water-proof range hood of this utility model from another perspective.

[0015] Figure 4 This is a schematic diagram showing the installation of the condenser filter in the explosion-proof and water-proof range hood of this utility model;

[0016] Figure 5 This is a schematic diagram of the condenser filter screen in the explosion-proof and water-proof range hood of this utility model before molding.

[0017] Figure reference numerals: 1. Purification box; 2. High and low voltage electric field area; 3. Condensation assembly; 4. Condensation filter; 5. Filter hole; 6. Condensation plate; 7. First connecting plate; 8. Second connecting plate; 9. Metal sheet; 10. Gap; 11. Condensation filter plane. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0020] Reference Figures 1 to 5 The present invention will be further described below.

[0021] An explosion-proof and water-proof range hood includes a purification box 1, which contains a high and low voltage electric field zone 2 and a condensation assembly 3. One end of the purification box 1 is connected to a filter screen, and the other end is connected to a fan. The condensation assembly 3 is located between the filter screen and the high and low voltage electric field zone 2. The condensation assembly 3 includes an outer frame (not shown in the attached figure) and a metal condensation filter screen 4 located on the outer frame. The condensation filter screen 4 includes a plurality of filter holes 5. Condensation plates 6 are provided on both sides of the filter holes 5. A first connecting plate 7 and a second connecting plate 8 are provided at both ends of the two condensation plates 6, and the first connecting plate 7 and the second connecting plate 8 are respectively located on both sides of the end of the condensation plate 6. The two condensation plates 6 are parallel and inclined to each other. The first connecting plate 7 on one condensation plate 6 is connected to the second connecting plate 8 on the other condensation plate 6. The first connecting plate 7 and the second connecting plate 8 connected at the same end are simultaneously connected to one condensation plate 6. The two condensation plates 6, the two first connecting plates 7, and the two second connecting plates 8 enclose and form the filter holes 5.

[0022] Specifically, multiple layers of condensation filters 4 can be provided on the outer frame, and the filter holes 5 between adjacent condensation filters 4 are arranged in an alternating manner.

[0023] like Figure 3 and Figure 4 As shown, in this preferred embodiment, the condensation filter plane 11 of the condensation filter 4 is a plane composed of the sides of the mutually parallel and inclined condensation plates 6, and the condensation plates 6 form an angle with the direction of airflow.

[0024] like Figure 2 As shown, in this example, preferably, the first connecting plate 7 and the second connecting plate 8 are hinged to the condenser plate 6, and the size of the filter hole 5 can be changed by rotating the first connecting plate 7 and the second connecting plate 8.

[0025] Specifically, when multiple layers of condenser filters 4 are set, the filter holes 5 on two adjacent condenser filters 4 can be of different sizes. Specifically, the condenser filters 4 can be set with filter holes 5 decreasing in size along the gas flow direction.

[0026] like Figure 5 As shown, the specific manufacturing process of the condenser filter 4 is as follows: several rows of slits 10 are made on a thin metal plate 9 with good thermal conductivity and light weight, and adjacent rows of slits 10 are staggered. Then, the slits 10 are pulled open in the inclined direction of the metal plate 9 to form filter holes 5.

[0027] Specifically, in order to maintain the shape of the filter hole 5 after it is pulled open, indentations can be made on both sides of the gap 10 when the filter hole 5 is pulled open, so as to distinguish the condenser plate 6, the first connecting plate 7 and the second connecting plate 8 around the filter hole 5, and make the filter hole 5 hexagonal in the inclined direction, so that the filter hole 5 has good shape stability.

[0028] Specifically, the slit 10 can be cut by rolling a roller on a thin metal sheet 9.

[0029] like Figure 2 and Figure 3 As shown, in this example, preferably, the length of the condenser plate 6 is greater than the length of the first connecting plate 7 and the second connecting plate 8, and the width of the condenser plate 6 is equal to the sum of the widths of the first connecting plate 7 and the second connecting plate 8.

[0030] In this example, the condenser filter 4 is preferably made of aluminum.

[0031] like Figures 1 to 5 As shown, when the oil fumes filtered by the external oil fume filter of the range hood pass through the condenser filter 4, they come into contact with the condenser plate 6, which is inclined and opposite to the airflow, and water droplets are condensed on the condenser plate 6. The condensation effect is good and the service life is long.

[0032] Specifically, the inclined condenser plate 6 ensures effective contact with the airflow while reducing obstruction to the airflow, and at the same time, water droplets at the condensation point on the condenser plate 6 can drip downwards along the inclined condenser plate 6.

[0033] Specifically, the first connecting plate and the second connecting plate can also play a condensation role.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An explosion-proof and water-proof range hood, characterized by: The purification box is connected with a filter screen at one end and a fan at the other end, and the condensing assembly is located between the filter screen and the high-low voltage electric field area.

2. The explosion-proof and water-resistant extractor hood according to claim 1, characterized in that: The condensing filter screen comprises a plurality of filter holes, and both sides of each filter hole are provided with a condensing plate.

3. The explosion-proof, water-resistant extractor hood according to claim 2, characterized in that: The first connecting plate and the second connecting plate on one condensing plate are connected with the second connecting plate and the first connecting plate on the other condensing plate, respectively.

4. The explosion-proof, water-resistant extractor hood according to claim 3, characterized in that: The condensing filter screen is made of aluminum material.

5. The explosion-proof, water-resistant extractor hood according to claim 4, characterized in that: ​

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