Detection device for concentration of oil smoke particulate matters

Abstract

The utility model provides an oil smoke particulate matter concentration detection device which comprises an outer rotating head, a main shell, a light sensor, an oil guide core and a through hole, the front side view cross section of a confluence hopper is of a conical structure, the upper end of the confluence hopper is provided with a group of bottom covers used for collecting detected oil smoke, and the lower end of the confluence hopper is provided with a plurality of through holes. The upper end of the bottom cover is provided with a group of main shells used for detecting oil fume air, a group of detection cavities are formed in the main shells, and a plurality of groups of light sensors used for detecting light heat dissipation change of oil fume particulate matter concentration are distributed in the main shells in an annular structure. Compared with the prior art, the oil fume detection device has the following beneficial effects that particulate matters in oil fume air in the detection cavity are irradiated by using the light sensor, so that the oil fume concentration is calculated by measuring the scattering change of the oil fume particles to light emitted by the light sensor; and meanwhile, the oil baffle layer can effectively limit the influence of a lampblack solidified body on the irradiation function of the light sensor.

Description

Technical Field

[0001] This utility model belongs to the field of oil fume concentration detection technology, and relates to a device for detecting the concentration of oil fume particulate matter. Background Technology

[0002] Existing technologies for detecting particulate matter concentration in cooking fumes have several drawbacks regarding the condensation and dripping of fumes. First, these methods often rely on optical or electrical principles, such as laser scattering or charge induction, to measure particulate concentration. However, when particulate matter in the fumes condenses and drips onto the sampling tube or sensor surface of the detector, it can distort the measurement results. This condensation and dripping phenomenon is mainly due to the condensation of grease components in the fumes at lower temperatures and the deposition of particulate matter on the pipe or sensor surface. Second, these condensed substances may clog the sampling tube, affecting gas flow and further impacting detection accuracy and response speed. Conventional solutions include regular cleaning and maintenance of the detection equipment. However, these methods have drawbacks: frequent maintenance increases operating costs and labor intensity, while heating elements, although preventing condensation, increase energy consumption and may affect the stability and lifespan of the detection equipment. Heating methods cannot completely solve all types of condensation problems, especially in high-concentration cooking fume environments, where rapid grease condensation can still affect detection results. Therefore, there is an urgent need for a device for detecting particulate matter concentration in cooking fumes to address these issues. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for detecting the concentration of particulate matter in oil fumes, and to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution: a device for detecting the concentration of particulate matter in oil fumes, comprising: an external rotating head and a through hole, wherein the confluence bucket has a conical structure in frontal cross-section, and the upper end of the confluence bucket is provided with a set of bottom covers for collecting the detected oil fumes;

[0005] The upper end of the bottom cover is provided with a set of main shells for detecting oil fume air. The main shell has a hollow structure inside and a set of detection chambers inside. The main shell has several sets of light sensors distributed in a ring structure inside for detecting changes in the concentration of oil fume particles by light heat dissipation.

[0006] The light sensor is embedded inside the main housing, and its light emission detection point is located inside the detection cavity. Each set of light sensors has an oil-blocking layer on both the upper and lower sides to prevent the introduction of fluid oil fume substances. The light sensor is preferably equipped with a related device with optical standard scattering plate function. It can use the light sensor to irradiate the oil fume air particles inside the detection cavity, and calculate the oil fume concentration by measuring the scattering change of the light emitted by the light sensor by the oil fume particles. At the same time, the oil-blocking layer can effectively limit the oil fume solidification and prevent it from affecting the irradiation function of the light sensor.

[0007] As a preferred embodiment, a set of fixing ears is provided on both the left and right sides of the bottom cover. Both sets of fixing ears are integral with the bottom cover. The upper end of each set of fixing ears corresponds to a set of side posts and is connected by bolts. The side posts are provided with a control cavity for providing power to several sets of light sensors and controlling the detection data.

[0008] In a preferred embodiment, the control cavity is equipped with a power supply component that provides power to several sets of light sensors and a microcontroller that controls the detection data of several sets of light sensors. A display screen for displaying the concentration of oil fume particles is embedded in the outer side of the side column.

[0009] In a preferred embodiment, the upper end of the main shell has a flange structure, and the upper end of the main shell is provided with a sealing gasket to prevent oil fume leakage. The upper end of the main shell is sealed to the external oil fume inlet pipe by means of a flange connection. The main shell with a flange structure can be sealed to the external oil fume duct, which can effectively prevent oil fume air from seeping out and external air from entering and mixing, thus affecting the test results.

[0010] In a preferred embodiment, the upper end of the detection chamber is provided with a set of filters to prevent the seepage of solidified oil in the fume air, and the outside of the confluence hopper is provided with four sets of evenly distributed external rotating heads, which are connected and fixed to the outside of the confluence hopper.

[0011] In a preferred embodiment, the confluence hopper has a hollow structure and a set of oil settling chambers inside. The lower end of the confluence hopper is provided with a set of oil seepage ports for collecting and discharging particulate matter inside the oil fume air.

[0012] In a preferred embodiment, the oil settling chamber is provided with a set of oil guide cores for directly guiding the oil fume air. The oil guide cores are cylindrical structures with several sets of through holes for the flow of oil fumes. By using the oil settling chamber and the oil guide cores, the oil fumes accumulated inside the device can be actively collected and guided by gravity, thereby preventing them from accumulating inside. At the same time, the multiple through holes can effectively expand the path of the oil fumes to prevent blockage inside.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows: by using a light sensor to irradiate the particulate matter inside the detection chamber of the oil fume air, the oil fume concentration is calculated by measuring the scattering change of the light emitted by the light sensor by the oil fume particles. At the same time, its oil-blocking layer can effectively limit the oil fume solidification from affecting the irradiation function of the light sensor. The main shell with a flange structure is sealed to the external oil fume duct, which effectively prevents the oil fume air from seeping out and the external air from entering and mixing, thus affecting the detection results. The oil settling chamber and oil guide core are used to actively collect and guide the oil fume accumulated inside the device by gravity, thereby preventing it from accumulating inside. At the same time, multiple through holes can effectively expand the path of the oil fume to prevent blockage inside. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front-view structural diagram of a device for detecting the concentration of particulate matter in cooking fumes according to the present invention.

[0016] Figure 2 This is a left-angled top view of the upper part of the main shell in a device for detecting the concentration of particulate matter in oil fumes according to the present invention.

[0017] Figure 3 This is a schematic diagram of the left side view of the internal structure of the main shell in a device for detecting the concentration of particulate matter in cooking fumes according to the present invention.

[0018] Figure 4 This is a top view of the front structure of the oil guide core in a device for detecting the concentration of particulate matter in oil fumes according to this utility model.

[0019] In the diagram: 100-external rotating head, 110-oil seepage port, 120-collecting hopper, 130-bottom cover, 140-main shell, 150-side column, 160-display screen, 170-top cover, 180-smoke guide chamber, 190-filter screen, 200-oil barrier layer, 210-light sensor, 220-oil guide core, 230-through hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 A device for detecting the concentration of particulate matter in cooking fumes includes: an external rotating head 100, a main shell 140, a light sensor 210, an oil guide core 220, and a through hole 230. The confluence hopper 120 has a conical cross-section when viewed from the front, and a set of bottom covers 130 for collecting the detected cooking fumes is provided at the upper end of the confluence hopper 120.

[0022] The bottom cover 130 has a set of main shell 140 for detecting oil fume air. The main shell 140 has a hollow structure inside and a set of detection chambers inside. The main shell 140 has several sets of light sensors 210 for detecting changes in the concentration of oil fume particles by light heat dissipation in a ring structure inside.

[0023] The light sensor 210 is embedded inside the main housing 140. Its light emission detection point is located inside the detection cavity. Each light sensor 210 has an oil-blocking layer 200 on both the upper and lower sides to prevent the introduction of fluid oil fumes. The light sensor 210 is preferably equipped with related equipment with optical standard plate function.

[0024] The bottom cover 130 has a set of fixing ears on both the left and right sides. Both sets of fixing ears are integral with the bottom cover 130. The upper end of each set of fixing ears corresponds to a set of side posts 150 and is connected by bolts. The side posts 150 have a control cavity inside for providing power to several sets of light sensors 210 and controlling the detection data.

[0025] The control cavity is equipped with a power supply component that provides power to several groups of light sensors 210 and a microcontroller that controls the detection data of several groups of light sensors 210. A display screen 160 for displaying the concentration of oil fume particles is embedded in the outer side of the side column 150.

[0026] The upper end of the main shell 140 has a flange structure, and the upper end of the main shell 140 is provided with a sealing gasket to prevent oil fume leakage. The upper end of the main shell 140 is sealed to the external oil fume inlet pipe by means of a flange connection.

[0027] The upper end of the detection chamber is equipped with a set of filter screens 190 to prevent the seepage of solidified oil in the fume air. The outer side of the confluence hopper 120 is equipped with four sets of evenly distributed external rotating heads 100, which are connected and fixed to the outer side of the confluence hopper 120.

[0028] The inside of the confluence hopper 120 is a hollow structure and has a set of oil settling chambers. At the lower end of the confluence hopper 120, there is a set of oil seepage ports 110 for collecting and discharging particulate matter inside the oil fume air.

[0029] The oil settling chamber is equipped with a set of oil guide cores 220 for directly guiding the oil fume air. The oil guide cores 220 are cylindrical structures and have several sets of through holes 230 for the flow of oil fumes inside.

[0030] Please see Figures 1-4 As the first embodiment of this utility model: First, the operator seals the external oil fume air duct to the top cover 170. Since the upper end of the main shell 140 has a flange structure and a sealing gasket to prevent oil fume leakage is provided at the upper end of the main shell 140, the upper end of the main shell 140 is sealed to the external oil fume inlet pipe in a flange connection manner. The top cover 170 with the flange structure can be used to seal the connection with the external oil fume duct, effectively preventing oil fume air leakage and external air from entering and mixing, thus affecting the detection results. Subsequently, after the oil fume air enters the smoke guiding chamber 180, the oil fume air particles inside the detection chamber are irradiated by the light sensor 210. The oil fume concentration is calculated by measuring the scattering change of the light emitted by the light sensor 210 by the oil fume particles. At the same time, the oil-blocking layer 200 can effectively limit the oil fume solidification from affecting the irradiation function of the light sensor 210, thereby ensuring accurate measurement results.

[0031] Please see Figures 1-4 As a second embodiment of this utility model: Based on the description in the above embodiments, further, when the oil fume air enters the bottom cover 130 and the confluence hopper 120 through the main shell 140, since the confluence hopper 120 has a conical cross-section when viewed from the front, and the upper end of the confluence hopper 120 is provided with a set of bottom covers 130 for collecting the detected oil fume, the conical structure of the confluence hopper 120 can collect the oil fume fluid products by gravity. At the same time, the oil settling chamber is provided with a set of oil guide cores 220 for directly guiding the oil fume air. The oil guide core 220 is a cylindrical structure, and several sets of through holes 230 for the flow of oil fume are opened inside. By using the oil settling chamber and the oil guide core 220, the oil fume accumulated inside the device can be actively collected and guided by gravity, thereby preventing accumulation inside. At the same time, the multiple through holes 230 can effectively expand the path of the oil fume to prevent blockage inside. Moreover, the operator can disassemble and clean without disassembling other structures, effectively improving the convenience of use.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the concentration of particulate matter in cooking fumes, comprising: The external rotating head (100), main shell (140), light sensor (210), oil guide core (220) and through hole (230) are characterized in that: the confluence hopper (120) has a conical structure in frontal cross-section, and the upper end of the confluence hopper (120) is provided with a bottom cover (130) for collecting the detected oil fumes. The bottom cover (130) is provided with a set of main shells (140) for detecting oil fume air. The main shell (140) has a hollow structure inside and a set of detection chambers inside. The main shell (140) has a ring structure with several sets of light sensors (210) for detecting changes in the concentration of oil fume particles by light heat dissipation. The light sensor (210) is embedded inside the main shell (140), and its light emission detection point is located inside the detection cavity. Each light sensor (210) has an oil-blocking layer (200) on both the upper and lower sides to prevent the introduction of fluid oil fume substances.

2. The device for detecting the concentration of particulate matter in cooking fumes according to claim 1, characterized in that: The bottom cover (130) is provided with a set of fixing ears on both the left and right sides. Both sets of fixing ears are integral with the bottom cover (130). The upper end of each set of fixing ears is connected to a set of side pillars (150) by bolts. The side pillars (150) are provided with a control cavity for providing power to several sets of light sensors (210) and controlling the detection data.

3. The device for detecting the concentration of particulate matter in cooking fumes according to claim 2, characterized in that: The control cavity is equipped with a power supply assembly that provides power to several sets of light sensors (210) and a microcontroller that controls the detection data of several sets of light sensors (210). A set of display screens (160) for displaying the concentration of oil fume particles is embedded in the outer side of the side column (150).

4. The device for detecting the concentration of particulate matter in cooking fumes according to claim 1, characterized in that: The upper end of the main shell (140) has a flange structure, and the upper end of the main shell (140) is provided with a sealing gasket to prevent oil fume leakage. The upper end of the main shell (140) is sealed to the external oil fume inlet pipe by means of a flange connection.

5. The device for detecting the concentration of particulate matter in cooking fumes according to claim 4, characterized in that: The upper end of the detection chamber is provided with a set of filter screens (190) to prevent the seepage of solidified oil in the fume air. The outside of the confluence bucket (120) is provided with four sets of evenly distributed external rotating heads (100), and the four sets of external rotating heads (100) are connected and fixed to the outside of the confluence bucket (120).

6. The device for detecting the concentration of particulate matter in cooking fumes according to claim 5, characterized in that: The inside of the confluence hopper (120) is a hollow structure and has a set of oil settling chambers. The lower end of the confluence hopper (120) is provided with a set of oil seepage ports (110) for collecting and discharging particulate matter inside the oil fume air.

7. The device for detecting the concentration of particulate matter in cooking fumes according to claim 6, characterized in that: The oil settling chamber is provided with a set of oil guide cores (220) for directly guiding the oil fume air. The oil guide cores (220) are cylindrical structures and have several sets of through holes (230) for the flow of oil fume inside.

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