CN202052422U - Bellows fume purifier - Google Patents

Abstract

A bellows oil fume purifier capable of efficiently purifying oil fume in smoke oil gas is composed of a group of parallel bellows, and the number of parallel single bellows is at least two. It adopts clustered parallel bellows structure to divide and refine the flue gas, and divides the purification treatment unit into small units; at the same time, it combines separation and purification functions such as vortex separation, condensation and condensation, and surface adsorption and sedimentation to purify the oil fume with repeated circulation methods, and the purification efficiency is high. The link structure of periodic corrugation and diameter reduction of the bellows makes the flue gas generate a stable high-speed vortex at the corrugation and diameter reduction of the bellows. The entrainment effect of the vortex makes the non-air substances in the smoke gather at the center of the vortex, and continuously contacts, collides, sticks, and repeatedly squeezes and deforms in the vortex core. The mass particles settle in the depressions. Thereby, the purpose of removing oil fumes in the flue gas and cleaning the air is achieved.

Description

Bellows oil fume purifier

technical field

The utility model relates to a bellows oil fume purifier which is simple, easy to implement, low in cost and capable of efficiently purifying oil fume in oil fume.

Background technique

With the rapid development of urban social economy and the continuous improvement of people's living standards, the catering industry has developed rapidly, providing fast and convenient catering services for busy urbanites and making great contributions to economic prosperity. However, the pollution of cooking fumes to the living environment of surrounding residents is also increasing day by day, posing a great threat to the environment and the health of residents, and has become a hot spot of public complaints and an important factor affecting air quality.

Oil fume is a kind of aerosol, which is formed by aldehydes, ketones, alkanes, alkenes, polycyclic aromatic hydrocarbons and other components formed by volatilization, oxidation, cracking and hydrolysis of edible oil and food at high temperature and air medium. Dispersion system, the composition is extremely complex; the form includes three phases of gas, liquid and solid; the particle size is generally 0.1-10 μm; it has strong adhesion, permeability and toxicity.

At present, there are five types of oil fume purification equipment commonly used in China, including mechanical, filter, wet, electrostatic and composite oil fume purification equipment.

Mechanical purification is the use of inertial separation to purify oil fume. It is widely used because of its simple structure, small volume, small pressure drop and low cost. Range hoods for household use are a typical mechanical purification device. However, due to the complexity, heterogeneity, and particularity of physical properties of oil fume components, the purification efficiency of mechanical purification is not high. Therefore, the development of effective and reliable oil fume purification technology is of great significance to protect the environment and protect people's health.

Bellows is an elastic, thin-walled, corrugated reducing tube shell part with many continuous transverse corrugations. Its periodically variable diameter link structure makes it have good flexibility, bending, stretching and deformation properties, and can withstand heavy loads; it is usually used as a connecting pipe to overcome comprehensive displacement; or as a buffer; or a protective sleeve. It is cheap and widely used.

Contents of the invention

In order to effectively purify oil fume, the utility model adopts bellows to make an oil fume purifier. The oil fume purifier uses structural segmentation to refine the flue gas, and divides the purification processing unit into small units; in view of the low purification efficiency of the traditional one-time purification process, it uses repeated circulation methods to purify the oil fume. At the same time, combined with separation and purification functions such as vortex separation, condensation and condensation, surface adsorption and sedimentation, the compound purification efficiency is improved.

It uses the characteristics of the fluid to form a high-speed rotating vortex behind the obstacle or in the depression, so that the flue gas can generate a stable high-speed vortex at the corrugated pipe diameter reduction. Under the entrainment effect of the vortex, the non-air substances in the smoke gather at the center of the vortex, where they continuously contact, collide, and bond together. The mass particles settle in the depressions. Thereby, the purpose of removing oil fumes in the flue gas and cleaning the air is achieved. The link structure of the corrugated pipe periodically folds and changes the diameter, so that the above process is repeated, the soot is continuously removed, and the purification efficiency is greatly improved. The technical solution adopted by the utility model to solve its technical problems:

A bellows oil fume purifier, characterized in that: it is composed of a group of parallel bellows, the number of parallel single bellows is at least two; the parallel bellows are sleeved in the sleeve, and the sleeve is either a rubber tube or a corrugated tube. Tubes; parallel corrugated pipes are bound into bundles by wires, tapes, or wire ropes; the ends of parallel corrugated pipes are respectively installed on perforated shelves, flat plates, or curved plates; parallel corrugated pipes are coiled in containers Inside.

The utility model has the beneficial effects of simple operation, high efficiency and reliability, and good cleaning effect. Therefore, the long exhaust pipe of the range hood can be removed in the family, and the building does not need to specially design the main flue for oil fume exhaust. , The catering industry also completely eliminates the troubles of lampblack, purifies the air, and beautifies the environment.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a partial sectional view of the utility model installed in the container

Figure 2 is a cross-sectional structure diagram of the corrugated pipe along the axis

In the figure: 1. Parallel bellows 2. Large-diameter rubber hose 3. Bellows wall 4. Air channel 5. Bellows annular protrusion 6. Bellows annular depression 7. Air inlet 8. Air outlet 9. T-shaped joint 10. Oil collection box 11. Container 12. Cover plate

Detailed ways

In the embodiment shown in Figure 1, several parallel corrugated pipes (1) are installed in the inner hole of the large-diameter rubber hose (2), and the large-diameter rubber hose (2) is packaged into a bundle, placed in the container in a circle, and the lower end passes through the T-shaped joint. (9) is connected with the air inlet (7), the upper end is connected with the air outlet (8), and one end of the T-shaped joint (9) is connected with the oil collecting box (10).

Since the corrugated pipe is a thin-walled corrugated variable-diameter shell part with multiple transverse corrugations, the inner concave corrugated pipe wall forms an annular protrusion in the hole, and the outer convex corrugated pipe wall forms an annular depression in the hole. Arranged alternately along the axis and distributed in parallel.

The flue gas is first divided into several parts by the bundled parallel bellows, and then flows into the corresponding bellows respectively.

When the moving smoke enters the pipe and encounters an annular raised obstacle, a migratory flow will be generated in the depression behind the annular raised, forming a vortex. The greater the flue gas flow rate, the faster the speed of the vortex. The vortex with small size and high speed entrains the non-air substances in the smoke to the center of the vortex. Because the vortex in the depression is not scoured by the high-speed fluid on the flow channel, it is not easy to break and fall off, has good stability and lasts for a long time. The more stable the vortex is, the longer it exists, and the higher the density of the non-air matter gathered in the vortex core is, the more favorable it is for the aggregated matter to grow. Under the action of the vortex, colloidal particles, oil fume particles, water vapor, and carbon dust particles with great viscous contact, collide, and bond continuously in the vortex nucleus. After repeated extrusion, deformation, and condensation, their quality and size become more and more Large, and finally settle in the depression with large mass particles. The axial dimensions of the corrugated protrusions and corrugated depressions of the corrugated pipe are very small, and the ring-shaped protrusions and ring-shaped depressions formed by a series of folds along the pipe axis make the flue gas pass through numerous stable small vortexes, rolling countless times. Inhale and separate the non-air substances in the oil fume. The longer the length of the bellows, the more the number of protrusions and depressions, the more small eddies are generated, the more times the oil fume is separated, the more sufficient the separation, and the better the purification effect. The number of vortexes generated by the parallel bellows will be an integer multiple of that of a single bellows, the separation will be more significant, and the cleaning effect will be better. The number of parallel corrugated pipes is large, the hole diameter is small, the oil fume is divided and refined, and the contact with the protrusion is sufficient. As the number of purification objects is reduced and the size is small, the soot substances in it can be fully removed after repeated vortex cycle separation and purification, and the purification is thorough, and finally the clean gas that no longer contains soot substances is discharged.

On the other hand, the corrugated protrusions and depressions of the bellows effectively increase the surface area in the hole, and the heat dissipation area is large. Oil fume, oil mist and water vapor are rapidly cooled in the chamber, and when the particles with strong adhesion and thermal motion collide with the pipe wall and contact with each other, the energy is lost rapidly, and they will adhere to and settle on the pipe wall. Air separation to achieve purification effect.

If the bundled parallel corrugated pipes are rotated in a container with refrigeration function or coolant, the flue gas will be cooled rapidly below the "dew point" of the soot substance, and the soot will condense into liquid droplets on the hole wall and be separated from the gas to achieve Purification purpose.

Claims (5)

1. A bellows oil fume purifier, characterized in that: it consists of a group of parallel bellows, and the number of parallel single bellows is at least 2. 2. The bellows oil fume purifier according to claim 1, characterized in that: the parallel bellows are sleeved in a sleeve, and the sleeve is either a rubber hose or a bellows. 3. The bellows oil fume purifier according to claim 1, characterized in that: the ends of the parallel bellows are respectively installed on a perforated shelf, or a flat plate, or an arc-shaped plate. 4. The bellows oil fume purifier according to claim 1, characterized in that: the parallel bellows are bound into bundles by metal wires, adhesive tapes, or wire ropes. 5. The bellows oil fume purifier according to claim 1, characterized in that: the parallel bellows are coiled in the container.

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