JPS6042532A - Exhaust device of smoke - Google Patents

Abstract

PURPOSE:To enable to wash far effectively, by so constituting the titled device that an exhaust fan is operated after a liquid film of a detergent has formed on an inner wall of a main body. CONSTITUTION:When an operating switch 11 is turned ON, a pump is operated for several seconds, to begin with, a detergent liquid is spouted out from a spray nozzle 4 and a thin detergent liquid film is formed on an inner wall surface of a main body 1. When the pump is suspended, exhaust of smoke is begun next by revolving an exhaust fan 5. Air containing fat content is entered into the main body 1 through a suction port 6 and a flow is contracted and accelerated by buffle plates 2a, 2b, 2c through inertia force of which fat content collides with and adheres to the inner wall surface of the main body 1. It becomes that the fat content is sticked on a detergent film as the detergent liquid film has formed already on the inner wall surface, and it is a little that particulates of the fat adheres directly to the inner wall surface as part of the inner wall surface is turned into a state wherein it is covered with a surfactant. Simultaneously with suspension of the exhaust fan 5 the pump is operated for scores of seconds, the detergent liquid is spouted from the spray nozzle 4 and the particles of the fat adhering to the inner wall surface is washed.

Description

DETAILED DESCRIPTION OF THE INVENTION The industrial application field of the present invention relates to a smoke evacuation device having a collision type oil smoke removal function and a cleaning function for this oil smoke removal section.

Conventional configuration and its problems As a smoke exhaust system for places that generate oil smoke containing a large amount of oil and fat, such as commercial kitchens, the exhaust flow sucked in from the intake air is condensed and accelerated with a baffle plate. A so-called grease extractor is effective because it uses inertia to cause the oil and fat in the exhaust gas to collide with the wall inside the main body and remove it, and then to clean the adhering oil and fat by spraying hot water containing detergent from a spray nozzle installed inside the main body. It's been used a lot lately. This grease extractor constantly cleans the grease adhering to the internal walls of the main body, so there is no accumulation of grease, and even if a pan containing oil overheats and ignites, the fire will pass through the duct and spread to other places. It is highly unlikely that it will move. However, with the conventional structure, washing is done with a large amount of hot water and detergent, which requires a hot water storage tank, long piping, a large pump, etc., making the device large and expensive, making it unsuitable for household smoke exhaust systems. was there.

OBJECT OF THE INVENTION The object of the invention is to eliminate such problems, make the conventional structure more compact, and provide a highly efficient smoke evacuation device suitable for household use, which enables more effective cleaning. be.

Structure of the Invention The smoke evacuation device of the present invention includes a main body equipped with a water supply vibrator equipped with a plurality of baffle plates and a plurality of spray nozzles inside, an exhaust fan in two parts, a detergent liquid in the bottom, and a water pipe in the front. It consists of a pump communicating with the main body, and a control circuit k that performs turogram control of the exhaust fan and the pump.Before starting the exhaust fan, the pump is operated for a predetermined period of time to inject detergent liquid onto the inner wall of the main body to form a detergent liquid film. After the exhaust fan is stopped, the pontoon is operated for a predetermined period of time to inject detergent liquid onto the inner walls of the main body for cleaning.During smoke exhaust operation, the exhaust fan is operated after forming a detergent liquid film on the inner walls of the main body. The control circuit uses a control circuit to clean the trapped oil particles after the air fan stops.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure and FIG. 2, 1 is the smoke evacuation device.

Inside the main body, there are baffle plates 2a, 2b, 20 (!:, a water supply vibrator 3 that supplies detergent liquid to the spray nozzle 4, an exhaust fan 5 and an exhaust port 9 on the top, and an intake port 6 on the lower front. A smoke guide plate 7 is installed above each.8
is the detergent liquid reservoir. A box 10 containing a pump and a control circuit is installed on the side of the main body 1. The pump communicates with the water supply vibe 3. 11 is an operation switch for the control circuit, and 12 is a pilot lamp.

The structure of the present invention has been described above, and its operation will be explained next. As shown in FIG. 4, when the operation switch 11 is turned on, the pump is first operated for several seconds (T1) and the spray nozzle 4 is turned on.
More detergent liquid is ejected, and a thin film of detergent liquid is formed on the inner wall surface of the main body 1. When the pump, which has been operated for several seconds (T1), stops, the exhaust fan 5 then turns to start exhausting smoke. Air containing oil and fat enters the main body 1 from the intake l] 6, and passes through the baffle plate 2.
a, 2b.

2C accelerates the contraction flow 1, and the inertia causes the oil and fat to collide and adhere to the inner wall of the main body 1. However, since a film of detergent liquid has already been formed on the inner wall surface, the oil and fat will adhere to the detergent liquid film-1-, and some of it will be covered with the surfactant and the oil and fat will be removed. Particles rarely adhere directly to the inner wall surface. When the operation switch 11 is turned off, the pump is operated for several tens of seconds at the same time that the four cylinders and one air fan 5 are adjusted to the correct size, and the detergent liquid is jetted out from the spray nozzle 4 to clean the oil particles attached to the inner wall surface. Saruru. Next, the second operation will be explained using the block diagram shown in FIG. Pump 15 and 5 exhaust fans each controlled by 1 power control circuit 12a, 12b 7
7-, the power system (goods) circuits 12a and 12b are operated by the operation switch 11. Power supply 13 and 5 via grogram timer 14
11- It is tied. When the operation switch 11 is turned on, the Floclad timer 14 is activated, the power control circuit 12 & is activated, and the pump 15 is operated for several seconds (T,), and the detergent liquid is injected from the nozzle 4 and the inside of the main body 1 is rr, +. The detergent solution can be removed. After a few seconds (T1), when the pump 15 turns 1, the power sterilization circuit 12b operates and the +Jl air fan 5 turns -)
The smoke begins to emit smoke. As described above, the oil and fat in the exhaust gas collides with and adheres to the detergent solution coating 11' by the i mechanism. When the operation switch 11 is turned off, ・Program timer 1
4, the power control circuit 2a is activated and the pump 15 is operated for several seconds (T2), thereby cleaning the oil particles adhering to the inner wall surface. Normally, smoke evacuation devices are often made of stainless steel plates, but if the stainless steel plate is coated with oil and fat, and if it is exposed to heat or left for a long time, its adhesion will increase, making it extremely difficult to clean. However, according to this embodiment, as soon as the operation switch 11 is turned off, the pump 5 rotates for several tens of seconds, and the oil particles adhering to the detergent solution film inside the main body are easily washed away with the detergent solution from the spray nozzle 4. .

Effects of the Invention As described in -1-, the present invention uses a control circuit for the exhaust fan and water supply pump to operate the pumps for several seconds before starting the exhaust fan and for several tens of seconds after the exhaust fan stops, thereby reducing the amount of air sucked in. The oil particles inside are the detergent liquid film formed on the inner wall of the main body + 1! ¥, 1. Since it adheres to l- by collision, cleaning can be carried out effectively in a very short period of time.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of one embodiment of the present invention, FIG. 2 is a sectional view of the same side, FIG. 3 is a block diagram of a control circuit, and FIG. 4 is an operation timing diagram of a switch, a pump, and a fan. 1...Main body, 2N, 2b, 20...Panful board. 3...Water supply pipe, 4...Spray nozzle, 6
...Exhaust fan, 8...Detergent liquid reservoir, 16.
···pump. Name of agent: Patent attorney Toshio Nakao and one other person Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A main body including a water supply pipe equipped with a plurality of baffle plates and a plurality of spray nozzles inside, an exhaust fan disposed at the top, a detergent liquid reservoir at the bottom, a pump communicating with the water supply pipe, and the exhaust fan and pump. The control circuit operates the pump for a predetermined period of time before starting the exhaust fan to inject detergent liquid onto the inner wall of the main body to form a detergent liquid film, and after the exhaust fan is stopped, A smoke evacuation device configured to operate a bonno for a predetermined period of time and spray detergent liquid onto the inner wall of the main body to clean it.