JPS62294828A - Smoke discharging device - Google Patents

Abstract

PURPOSE:To prevent a cleaning liquid flowing down an internal wall from being splashed out of a main body of a device under the operation of a blower just after a completion of cleaning step by a method wherein, a time limiting means is provided for assuring a specified time delay until the blower is started to operate after a pump for injecting the cleaning liquid from a cleaning nozzle is stopped. CONSTITUTION:When a cleaning is performed for a specified period of time through timer means in a microcomputer 11, a pump 5 is stopped, an informing means such as a lamp is turned OFF with a delay time in which neither the pump 5 nor the blower 8 is operated for a specified period of time through a time limiting means in the computer 11 and through a time limiting means in the computer 11 and then a cleaning step is complete. When a discharging button is depressed while the pump 5 is being driven, the pump 5 is stopped and after a time delay in which neither the pump 5 nor the blower 8 is operated, a discharging switch 12 is closed and then the blower 8 is driven. Therefore, even if the blower is started to operate, the cleaning liquid may not be mixed in the discharging air being induced by the blower.

Description

DETAILED DESCRIPTION OF THE INVENTION 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a smoke evacuation device having a function of separating fats and oils from oil smoke and a function of separating removed fats and oils.

2. Description of the Related Art As shown in FIGS. 3 and 4, this type of smoke evacuation device is provided with a cleaning liquid reservoir 3 equipped with a heater 2 at the bottom of a main body 1 of the smoke evacuation device, and a cleaning nozzle 4 disposed inside. The cleaning liquid reservoir 3 and the cleaning nozzle 47 were connected through a pump 5 and a piping path. Further, a blower 8 is provided above the smoke evacuation device main body 1 to draw in oil smoke from an intake lower directly above the cleaning liquid reservoir 3, and inside the smoke evacuation device main body 1 through which the oil smoke passes, there is a flow of oil smoke. Baffle plates 9 are provided alternately to forcibly bend.

Problems to be Solved by the Invention Conventional smoke exhaust devices are installed above cooking stoves in general household kitchens to exhaust oil smoke etc. generated during cooking to the outside.First, we will explain the oil and fat separation function. Then, the blower 8 sucks the oily smoke from the intake lower into the smoke evacuation device body 1, and the flow of the sucked oily smoke is forcibly bent by the baffle plate 9. The oil and fat particles in the oil smoke try to move straight due to their inertia, collide with the baffle plate 9 and the internal wall, and become attached. Next, this adhered oil and fat is sucked up by driving the pump 6 to remove the cleaning liquid stored in the cleaning liquid reservoir 3, and is transferred to the cleaning nozzle 4 through the piping path 6.
Cleaning is performed by spraying water onto the baffle plate 9 and internal walls. The cleaning liquid flows down the inner wall, returns to the cleaning liquid reservoir 3, is sucked up again by the pump 5, and is ejected from the cleaning nozzle 4.

In this way, a certain amount of cleaning liquid is circulated and used for cleaning.

After a certain period of time has elapsed, the pump 6 is stopped and the cleaning process is completed.

However, when the blower 8 happens to be activated immediately after the cleaning process, the cleaning liquid still flowing down the internal wall is carried by the wind and blown into the exhaust duct outside the smoke evacuation device main body 1 and outdoors, and from the joints of the exhaust duct, etc. There were problems such as the cleaning fluid leaking and the cleaning fluid staining the wall facing the outdoor exhaust port.

The present invention solves these problems and aims to prevent the blower from being driven immediately after the cleaning process and the cleaning liquid flowing down the internal wall from being blown to the outside of the smoke evacuation device main body.

Means for Solving the Problem In order to solve this problem, the present invention is provided with a time limit means for ensuring a certain delay time until the blower is started after the pump that sprays the cleaning liquid from the cleaning nozzle is stopped.

Effects According to the present invention, the blower is started after a certain period of time after the pump is stopped. Therefore, during that time, the cleaning liquid present on the inner wall of the smoke evacuation device body has flowed down to the cleaning liquid reservoir, and therefore, even if the blower is started, the cleaning liquid will not get mixed into the exhaust air induced by it. It is something that will disappear.

However, since the basic structure of this device is the same as that of the conventional example, FIGS. 3 and 4 and their explanations will be referred to.

In Figures 1 and 2, when the time set once a day arrives or the cleaning button (not shown) is pressed, the cleaning switch 1o is closed, the cleaning process starts, and the lamp (not shown) etc. The notification means notifies that the cleaning process is in progress, and the pump 5 is driven, and the cleaning liquid stored in the cleaning liquid reservoir 3 is sucked up and sprayed from the cleaning nozzle 4 through the piping path 6 onto the baffle plate 9 and the internal wall. and then clean it. Then, when cleaning is performed for a certain period of time by means of a timer in the microcomputer 11, the pump 6 is stopped, and by means of a timer in the microcomputer 11, the pump 5 and the blower 8 are
The notification means such as a lamp is turned off after a delay time during which it is not activated.
It is turned off and the cleaning process ends. Further, if the exhaust button (not shown) is pressed while the pump 5 is running, the pump 5 will stop, and after a delay period in which neither the pump 5 nor the blower 8 operates for a certain period of time due to the timer of the microcomputer 11, the lamp etc. After the notification means is turned off, exhaust switch 1
2 is closed and the blower 8 is driven.

As a result, oily smoke is sucked into the smoke evacuation device main body 1 through the intake lower, and after the oil and fat in the smoke is separated by the baffle plate 9, clean air is exhausted to the exhaust duct outside the smoke evacuation device main body 1 and outdoors. . When the exhaust button is released, the exhaust switch 12 is opened, the storage means of the microcomputer 11 recognizes that the cleaning process has been interrupted, and the cleaning switch 10 is closed again to restart the cleaning process. Thereafter, the series of cleaning steps described above are performed, and then the cleaning step is completed.

In addition, in the above embodiment, a circuit using a microcomputer was used as an example to perform a series of operations, but the control circuit is not particularly limited.In short, the blower is operated for a certain period of time after the pump is stopped. It is only necessary to provide a delay time to prevent this from occurring, and to provide a means for notifying that the cleaning process is in progress, including this delay time.

Effects of the Invention As is clear from the above embodiments, the smoke evacuation device of the present invention provides a delay time before the blower is activated even if the exhaust button is pressed during or immediately after the cleaning process. After the pump stops, the cleaning liquid ejected from the cleaning nozzle returns to the cleaning liquid reservoir, and then the blower is activated.The cleaning liquid flowing down the internal wall of the smoke exhaust system is carried by the wind and goes into the exhaust duct. This has the effect of eliminating all problems such as the cleaning liquid being blown outdoors, leaking from the joints of the exhaust duct, and staining the wall facing the outdoor exhaust port with the cleaning liquid.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing one embodiment of the present invention, FIG. 2 is a flow chart of the same, FIG. 3 is a sectional view showing the structure of the smoke evacuation device, and FIG. 4 is a partial side sectional view of the same. 1...Fume exhaust device main body, 3...Cleaning liquid reservoir, 4...Cleaning nozzle, 5...Pump, 8...Blower , 9... Oil and fat separator (baffle plate), 11... Timing means (microcomputer). Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 !・-・Disparagement Book 3・・・Cleaning Solution Reservoir 4・−Cleaning Nose 2

Claims (1)

[Claims] a cleaning liquid reservoir provided below the smoke evacuation device main body for storing a cleaning liquid; a pump configured to eject the cleaning liquid from the cleaning liquid reservoir from a cleaning nozzle disposed inside the smoke evacuation device main body;
It is equipped with a blower that sucks oily smoke into the smoke evacuation device and exhausts it outside, and an oil separator that removes oil and fat from the sucked oily smoke.The blower also operates for a certain period of time after the pump that sprays cleaning liquid from the cleaning nozzle is stopped. A smoke evacuation device equipped with a time limit means to set a delay time during which the smoke is not activated.