JPS60133246A - Smoke eliminator - Google Patents

Abstract

PURPOSE:To produce a washing liquid of a constantly fixed density and prevent the washing liquid from flowing back into service water, by a construction wherein a water receiver is provided on the lower side of a discharge port of a water pipe provided with a solenoid valve, and is connected to a discharge pipe for a pump through a check valve. CONSTITUTION:When the solenoid valve 27 provided in the water pipe 26 is opened, water flows out through the discharge port 31 into the water receiver 30 provided on the lower side of the port 31, and stays in a washing tank 25 after passing through a discharge port 37 opened into the interior of a main body 19 of the smoke eliminator. When a float 28 provided in the tank 25 reaches a predetermined level, a micro-switch 29 is opened to close the solenoid valve 27, thereby stopping the supply of water. For a predetermined period of time over which the valve 27 is opened, a solenoid valve 39 provided in a detergent tank 38 is also opened to supply a predetermined quantity of a detergent into the washing tank 25. When washing, the check valve 36 is closed by the pressure supplied by the pump 35, so that the washing liquid can not flow into the water receiver 30. After washing, the washing liquid is returned into the tank 25 by flowing along the inner walls.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a smoke evacuation device having a function of removing oil and fat contained in oil smoke and a function of cleaning the removed oil and fat.

Conventional Structure and Problems Conventionally, as a device for removing oil and fat from oil smoke, there is an impingement type smoke exhaust device shown in FIGS. 1 and 2, for example. In this system, the direction of the sucked oil smoke is bent by the baffle plate 1, and due to inertia force, it collides with the inner wall of the smoke exhaust device and the baffle plate 1, and is caused to adhere thereto. When cleaning the attached oil and fat,
First, when the solenoid valve 3 installed in the water pipe 2 is opened, the smoke evacuation device 4
Water flows out from a discharge port 6 provided in the smoke evacuation device 4 and collects in a cleaning tank 6 provided at the bottom of the smoke evacuation device 4. At the same time, check valve 7
The discharge pipe 9 and suction pipe 10 of the pump 8 are filled with water through the pump 8 . Then, the solenoid valve 12 of the cleaning tank 11 is opened for a certain period of time to send a fixed amount of detergent into the cleaning tank 6. When the cleaning tank 6 is filled with water, the float 13 floats and opens the microswitch 14, which closes the solenoid valve 3 and stops water supply. When cleaning, when the pump 8 is operated, the suction pipe 1o is filled with water, so the cleaning liquid is sucked up from the cleaning tank 6 and passed through the discharge pipe 9, without sucking air, to the cleaning nozzle 15. Cleaning liquid is injected from i6 and 17 onto the inner wall of the smoke exhaust device and the baffle plate 1 for cleaning. At that time, the check valve 7 is closed by the pump pressure, and the washing fI# liquid does not go to the water pipe 2.

After cleaning, the cleaning solution flows along the inner wall and returns to the cleaning tank 6. After cleaning for a certain period of time, the pump stops and the cleaning is completed. In the case of this conventional system, the discharge pipe 9 of the pump 8 is directly connected to the water pipe 2 via the check valve 7 in order to prime the pump 8, so the water is pumped by the water pressure. In addition to the suction pipe 10 and the discharge pipe 9, there is a cleaning nozzle 15. The piping 18 to '16.17 is also filled, and some of the water is injected from the cleaning nozzle 16 and 16.17. Therefore, the float 13 reaches a certain level and the microswitch 1
4 is opened and the solenoid valve 3 is closed, the water level rises from the point where the water accumulated in the piping 18 to the cleaning nozzles 16 to 17 flows out into the cleaning tank 6. Therefore, the cleaning tank 6
It is necessary to close the solenoid valve 3 in consideration of this water level.It is difficult to maintain a constant water level in the cleaning tank 6, and the concentration of the cleaning liquid is not constant, and if the concentration is low, sufficient cleaning power may not be obtained. Sometimes you can't get it.

Moreover, once cleaning is performed, the suction pipe 1° and the discharge pipe 9 of the pump 8 are filled with a cleaning liquid containing detergent. At that time, there was a problem that if the water supply was cut off while the solenoid valve 3 was open, the cleaning fluid in the discharge pipe 9 and the suction pipe 1O, as well as the cleaning tank 6, could flow back into the water pipe 2 and cause serious problems. .

Purpose of the Invention The present invention solves these conventional problems, and provides a drainage system that is excellent in terms of performance and safety, in that it is possible to always produce a cleaning solution with a constant concentration, and that small amounts of cleaning solution do not flow back into the tap water. It provides a smoke device.

Composition of the Invention The smoke evacuation device of the present invention includes a smoke evacuation fan provided on the upper part of the smoke evacuation device main body, and an interior wall of the smoke evacuation device main body.
k. A plurality of baffle plates, a plurality of cleaning nozzles for cleaning the baffle plates and the inner walls of the smoke evacuation device body, a cleaning pump that supplies cleaning liquid to the cleaning nozzles, and a cleaning pump provided at the bottom of the smoke evacuation device body. # It has a cleaning tank that stores all of the liquid, and in addition to supplying water to the cleaning tank, a water receiver is provided below the outlet of the water pipe with a solenoid valve in the middle, and the pump is pumped through the water receiver and the check valve. This is a system in which the discharge pipes of the pump are connected to each other to prevent water other than that required for priming the pump from being supplied to the piping route, and to prevent cleaning fluid from flowing back into the tap water even if the water supply is cut off. It is.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In Figs. 3 and 4, 19 is a smoke evacuation device body installed at a certain distance from the stove (not shown), with a smoke evacuation fan 2○ on the top, and an air intake port. 21
Air is sucked in through the 1" smoke device main body 19 and discharged from the exhaust port 22. Inside the smoke evacuation device main body 19, a plurality of baffle plates 23 and cleaning nozzles 24 are provided. A cleaning gun 25 for storing cleaning liquid is provided at the bottom of the main body 1. Reference numeral 26 is a water pipe, and a solenoid valve 27 is provided in the middle of the pipe, and a micro switch 29 is opened and closed by a float 28 in the cleaning tank 26. 3O is a water receptacle provided below the discharge port 31 of the water pipe 26, from which water flows from the cleaning tank 25 through the suction pipe 32, the discharge pipe 33, and the cleaning nozzle piping 34. The water receiver 3o is connected to a discharge pipe 33 of a pump 35 that supplies cleaning liquid to each cleaning nozzle 24 via a check valve 36.The water receiver 3o is connected to a discharge port 37 opened inside the smoke evacuation device main body 19. connected.

3B is a detergent tank, and 3 is a solenoid valve for feeding a fixed amount of detergent.

The operation in the above configuration will be explained. Spread onto the inner wall of the smoke evacuation device and the baffle plate 23 in the same manner as in the conventional example.

To describe the case of cleaning the adhered fat bones, when the solenoid valve 27 provided in the water pipe 26 is opened, water flows out from the discharge port 31 into the water receiver 30 provided below, and the smoke is further discharged. It collects in the cleaning tank 25 from the discharge port 37 opened inside the device main body 19.

At that time, a part of the water flows through the check valve 36 to the suction pipe 32 and discharge pipe 33 of the pump 35, and the water level of the discharge pipe 33 stops when it is aligned with the bottom of the water receiver 3O (cleaning nozzle). v
Water does not go to the pipe 34 of 24. All remaining water accumulates in the cleaning tank 25. When the float 28 in the cleaning tank 25 reaches a certain water level, the microswitch 29 opens and closes the electromagnetic valve 27 to stop water supply. Solenoid valve 2
Solenoid valve 3 of detergent tank 38 for a certain period of time while 7 is open.
9 is also opened to supply a fixed amount of detergent to the washing tank 25. When cleaning, when the pump 35 is operated, the suction pipe 32
Since the tank is filled with water, the cleaning liquid is sucked up from the cleaning tank 26 without sucking air, passes through the discharge pipe 33 and the cleaning nozzle piping 34, and is injected from the cleaning nozzle 24 onto the inner wall of the smoke evacuation device main body and the baffle plate 23. and clean it.

At that time, the check valve 36 closes due to the pressure of the pump and the water receiver 3
Cleaning liquid does not go to ○. After cleaning, the cleaning liquid flows along the inner wall and returns to the cleaning tank 25.

After cleaning for a certain period of time, the pump 36 stops and the cleaning is completed.

Next, other embodiments will be described. 6, 4o is a water receiver provided inside the smoke evacuation device main body 19 below the discharge 1'' 31 of the water pipe 26, from the cleaning tank 25 to the suction pipe 32, the discharge pipe 33, It is connected via a check valve 36 to a discharge pipe 33 of a pump 35 that supplies cleaning liquid to the cleaning nozzle (v24) through a pipe 34 of the cleaning nozzle.

The operation in the above configuration will be explained. When cleaning the smoke exhaust system 1 (1) to remove oil and fat that has collided with the inner wall or baffle plate 44, first open the solenoid valve 2 installed in the water pipe 26, and the inside of the smoke exhaust system main body 19 will be cleaned. Water flows out from the discharge port 31 opened at suction pipe 32
Flows into the I-stop 33, and the water level of the discharge pipe 33 reaches the water receiver 4.
When it becomes the same as the top surface of o, the water will overflow from the water receiver 4○ and will not flow out to the washing tank 26.

When the water in the cleaning tack 25 reaches a certain level, the float 28 opens the microswitch 29 and the solenoid valve 2
7 and the water supply stops. During a certain period of time when the solenoid valve 27 is open, the solenoid valve 39 of the detergent tank 26 is also opened to supply a fixed amount of detergent to the cleaning tank 25. The cleaning process is the same as in the embodiments shown in FIGS. 3 and 4.

Effects of the Invention: The smoke evacuation device of the present invention has the following excellent effects.

(1) At the same time when water is supplied to the wash p tank, the necessary priming water can be performed when starting the pump, and the priming claw can only enter the minimum necessary amount, and is independent of the water level of the wash aI tank. Therefore, the amount of water that accumulates in the cleaning tank is constant, and the concentration of detergent is always constant and there is no problem unless the concentration is thin and sufficient cleaning power is not obtained.

b)) Even if the water supply is cut off while the electromagnetic valve f is open, the water pipe and the discharge pipe are not connected, so the cleaning liquid will not flow back into the water pipe.

(3) In addition, in the case of the embodiment shown in Figs. 6 and 6, even if the car water receiver leaf U3D is clogged, it will not leak inside the smoke exhaust system and will not leak outside. Water does not stain the stove section installed below.

[Brief explanation of drawings]

Fig. 1 is a front view of a conventional smoke evacuation device, Fig. 2 is a sectional view of the same side, and Fig. 3 is a front view showing an embodiment of the smoke evacuation device of the present invention.
FIG. 4 is a sectional view of the same side, FIG. 5 is a top view showing another embodiment of the smoke exhaust device of the invention, and FIG. 6 is a sectional view of the same side. Smoke device main body, 20...Smoke exhaust fan, 23...Bassofuso board, 24...
31/z/”, 26...Cleaning tank, 3○, 4
0...Water receiver, 33...Discharge pipe, 36
...Pump, 36...Check valve. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2, □ Figure 4

Claims (2)

[Claims] (1) A smoke exhaust fan installed at the top of the smoke exhaust device body,
a plurality of baffle plates provided inside the smoke evacuation device main body;
The baffle plate and the inner wall 'ff of the smoke evacuation device body: a plurality of cleaning nozzles to be cleaned, a cleaning pump that supplies cleaning liquid to the cleaning nozzles, and a cleaning tank provided at the bottom of the smoke evacuation device body that stores the cleaning liquid. A water pipe that supplies water to the washing tank and has an electromagnetic valve in the middle has a water receptacle below the discharge port, and this water receptacle is connected to the discharge pipe of the pump via a check valve. Smoke evacuation device. (2) The smoke evacuation device according to claim 1, wherein the water pipe outlet and water receiver are provided inside the smoke evacuation device main body.