CN204201993U - A kind of energy saving and environment friendly percussion flow enclosure - Google Patents

Abstract

The utility model provides an energy-saving and environment-friendly impinging flow fume exhaust hood, which comprises a fume collecting hood body, a lye control box, a water pump, a valve, a reaction box, an lye water supply pipe, and a lye return tank. The exhaust fan is installed at the outlet, the smoke collecting hood is connected to the smoke inlet of the reaction box through the smoke pipe, and the inside of the smoke pipe is provided with a diversion pipe. A water pump is set, a valve is set on the water outlet of the reaction box, and the inlet of the lye return tank is connected, a filter screen is installed at the inlet of the lye return tank, the outlet of the lye return tank is connected with the lye control box, the lye control box, The reaction box and the lye return tank form a loop. The utility model sprays the lye sprayed by the spraying filter tube in the reaction box into the discharged high-temperature oil fume in a large area, rapidly reduces the temperature of the oil fume, makes combustibles settle, and plays the role of flame retardancy and fire prevention , At the same time remove the harmful substances in the oil fume, avoid air pollution.

Description

An energy-saving and environment-friendly impinging flow exhaust hood

technical field

The utility model relates to a comprehensive treatment system for cooking fume in a restaurant, in particular to a shape-preserving cooking fume treatment device for effectively reducing harmful substances in cooking fume.

Background technique

In the kitchens of large restaurants and various food courts, in the fragrant atmosphere, you often encounter the choking smell of oil fumes, and the thick oil stains accumulated on the oil fume exhaust pipes not only damage the beauty of the city, but also have a great impact on air quality. The current restaurant oil fume treatment is limited to using oil fume to draw the smoke into the exhaust duct, and using a filter to physically adsorb larger oil droplets, so that most of the oil fume gas and tiny particles are discharged into the air through the flue. According to modern scientific research, kitchen fume is extremely harmful to human health, because there are a lot of carcinogens in the fume. A large amount of untreated kitchen fumes are directly discharged into the air, causing air pollution. In addition, due to the low efficiency of physical adsorption, this type of oil fume treatment requires a high-power motor for oil fume extraction, which consumes a lot of energy.

Utility model content

The purpose of this utility model is to provide an energy-saving and environment-friendly impinging flow fume exhaust hood, which uses the impinging flow to ensure rapid absorption of oil fume, and at the same time, saves energy and electricity, degrades most of the harmful substances in the kitchen oil fume, and reduces the temperature of the oil fume. Eliminate unsafe hidden dangers.

In order to achieve the above object, the utility model provides the following technical solutions:

An energy-saving and environment-friendly impinging flow fume exhaust hood, comprising a fume collecting hood, a lye control box, a water pump, a valve, a reaction box, an lye supply pipe, and a lye return tank, and the reaction box is provided with a water inlet, a water outlet, an inlet The smoke outlet and the smoke outlet, the smoke collecting hood is connected to the smoke inlet of the reaction box through the smoke pipe, the lye control box is connected to the water inlet of the reaction box through the lye water supply pipe, and the end of the water inlet of the reaction box is provided with a spray filter tube , a water pump is set on the lye upper water pipe, a valve is set on the water outlet of the reaction box, and the inlet of the lye return tank is connected through the water pipe, the outlet of the lye return tank is connected with the lye control box, the lye control box, the reaction box and The lye returns to the tank to form a loop.

Further, a deflector is also included, and the deflector is arranged inside the smoke pipe connecting the fume collecting hood and the reaction box, so that the oil fume can flow along the smoke pipe quickly.

Further, a filter screen is also included, and the filter screen is installed at the inlet of the lye return tank to filter the fixed residues in the reacted lye and improve the efficiency of its secondary use.

Further, an exhaust fan is also included, and the exhaust fan is arranged at the smoke outlet of the reaction box to accelerate the discharge of the treated oil fume and improve the oil smoke absorption capacity of the whole system.

The beneficial effects of the utility model are:

1) Through the setting of the reaction box, the lye sprayed by the spray filter tube in the reaction box is sprayed in a large area in the discharged high-temperature oil fume, which quickly reduces the temperature of the oil fume, makes the combustibles settle, and plays a role in flame retardancy , to avoid the role of fire;

2) A large amount of harmful substances in the oil fume react chemically with the lye, produce salt and then precipitate, and the oily substances in the oil fume undergo a saponification reaction to form saponified substances, so that the harmful substances in the oil fume are removed, and then discharged after purification, avoiding air pollution;

3) The lye wastewater after the reaction is stored in the return tank and returned to the control box to realize secondary utilization;

4) The filter screen can filter the solid residue in the reacted lye, improve the efficiency of the secondary use of the lye, and at the same time, the filter screen can be taken out, and the separated solid residue can be taken out for waste utilization, especially after the reaction The saponified product can be used to make washing raw materials;

5) The exhaust fan is used to accelerate the discharge of oil fume after processing, improve the oil fume absorption capacity of the whole system, and save energy and electricity.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the internal structure of the reaction box in the utility model.

In the figure, 1. smoke collecting hood, 2. smoke pipe, 3. deflector, 4. reaction box, 5. smoke outlet, 6. lye upper water pipe, 7. water pump, 8. lye control box, 9. Alkaline return tank, 10. Spray filter pipe, 11. Valve, 5.1. Exhaust fan, 5.2. Filter screen.

Detailed ways

The following will clearly and completely describe the technical solution of the utility model in conjunction with the accompanying drawings of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the energy-saving and environment-friendly impinging flow fume exhaust hood provided by the utility model includes a fume collecting hood, a lye control box, a water pump, a valve, a reaction box, an lye upper water pipe, an lye return tank, and a reaction box A water inlet, a water outlet, a smoke inlet and a smoke outlet are arranged on the top, and an exhaust fan is arranged at the smoke outlet of the reaction box. The lye control box is connected to the water inlet of the reaction tank through the lye upper water pipe, the water pump is arranged on the lye upper water pipe, the valve is arranged on the water outlet of the reaction tank, and the inlet of the lye return tank is connected to the lye return tank through the water pipe. A filter screen is installed at the entrance of the reactor to filter the fixed residues in the reacted lye. The outlet of the lye return tank is connected with the lye control box, and the lye control box, the reaction box and the lye return tank form a loop.

The working principle of the utility model is as follows:

The cooking fume generated in the restaurant enters the device through the fume collecting hood, enters the reaction tank through the smoke pipe, and the lye in the lye control box is controlled by the water pump and enters the reaction tank through the lye upper water pipe through the water inlet of the reaction tank. The lye is sprayed out through the spray filter pipe of the reaction tank, and sprayed onto the oil fume entering the reaction tank. Make the gas-solid two-phase flow formed by the lye and the oil fume flow in opposite directions and collide with each other in the reaction box to form a collision flow to ensure the full reaction of the lye and the oil fume. After the reaction is completed, the exhaust fan is turned on to discharge the purified fume into the air. When the number of reactions is high, open the outlet valve of the reaction box, filter the lye wastewater through the filter, and then divert the lye back to the water tank, and then flow back through the lye return tank into the lye control box to realize the purification of oil fume , and secondary use of lye.

The above is only a specific embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto. Anyone familiar with the technical field can easily think of changes or changes within the technical scope disclosed by the utility model Replacement should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (4)

1. an energy saving and environment friendly percussion flow enclosure, it is characterized in that: comprise exhaust fume collecting hood body, alkali lye control cabinet, water pump, valve, reaction chamber, alkali lye upper hose, alkali lye return flume, described reaction chamber arranges water inlet, delivery port, enter mouth and outlet flue, described exhaust fume collecting hood body enters mouth by smoke pipe coupled reaction case, described alkali lye control cabinet is connected to the water inlet of reaction chamber by alkali lye upper hose, the water inlet end of described reaction chamber arranges spray filtering pipe, described alkali lye upper hose arranges water pump, the delivery port of described reaction chamber arranges valve, and the entrance of alkali lye return flume is connected by water pipe, the outlet of described alkali lye return flume is connected with alkali lye control cabinet, alkali lye control cabinet, reaction chamber and alkali lye return flume form a loop.

2. energy saving and environment friendly percussion flow enclosure according to claim 1, is characterized in that: also comprise deflector, and it is inner that described mozzle is arranged on the smoke pipe connecting exhaust fume collecting hood body and reaction chamber.

3. energy saving and environment friendly percussion flow enclosure according to claim 1, it is characterized in that: also comprise screen pack, described screen pack is arranged on the porch of alkali lye return flume.

4. energy saving and environment friendly percussion flow enclosure according to claim 1, it is characterized in that: also comprise exhaust blower, described exhaust blower is arranged on the outlet flue of reaction chamber.