JPH06280747A - Turbid liquid automatic discharging device - Google Patents

Abstract

PURPOSE:To provide a turbid liquid automatic discharging device which is designed to prevent the occurrence of a trouble and facilitate maintenance and inspection. CONSTITUTION:A take-out pipe 47 is connected to the upper part of a container 41 to contain turbid liquid D and turbid liquid D in a state to be mixed with air is injected in a container 41 therefthrough. Means 61-67 to measure an amount of a content of a liquid component Dw of the turbid liquid D are installed in the container 41. The liquid level of the liquid component Dw separated within the container 41 is measured thereby. A means to measure the liquid level is connected to a control means to control opening and closing of a discharge valve 73 and discharge of the liquid component Dw. When the liquid level of the liquid component Dw contained in the container 41 is adjusted to a given position, a signal is outputted to the control means. Thus, the control means is operated to open a discharge valve 73 and close the discharge valve 73 according to a received signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turbid liquid discharge device for discharging a turbid liquid containing a mixture of a gas and a liquid generated in a compressed air facility that circulates compressed air. The present invention relates to a turbid liquid discharge device that discharges only liquid of a mixed turbid liquid.

[0002]

2. Description of the Related Art Conventionally, in compressed air equipment and the like, generally, a large number of air traps are attached to a carrier pipe for carrying compressed air so that unnecessary liquids (drain and drain) which are present together with a gas such as air are formed. Sometimes called). FIG. 5 is a perspective view showing an example of a commonly used air trap, and FIG. 6 is a sectional view thereof. As shown, this air trap 11
It has a turbid liquid inlet 13 into which the turbid liquid flows in, and a turbid liquid outlet 15 from which the turbid liquid is discharged. Among them, the turbid liquid inlet 13 is a filter equipped with a filtration filter 17 for removing dust and the like. It leads to the accommodation room 19. The filter storage chamber 19 communicates with the opening / closing valve storage chamber 23 that stores the opening / closing valve 21 through the communication hole 25, and the opening / closing valve storage chamber 23 communicates with the turbid liquid discharge port 15.

The communication hole 25 is opened in a tapered shape toward the inside of the on-off valve accommodating chamber 23, and the on-off valve 19 which can be moved in close contact with and separated from the tapered communication hole 25 is opened and closed. It is housed in the valve housing chamber 23. In addition,
The on-off valve 19 is engaged with the tip of a handle 27 that is screwed into the main body of the air trap 11 so as to move back and forth. By turning the handle 27, the on-off valve 19 comes into close contact with and separates from the communication hole 25. There is.

A hollow passage 29 is formed in the on-off valve 19 so as to be in close contact with the communication hole 25 and communicates with the communication hole 25. The hollow passage 29 is formed in a space 31 formed inside the on-off valve 19. It is in communication. Further, as shown in the drawing, the hollow passage 29 is opened in the valve seat surface 35 with which the disc valve 33 accommodated in the space 31 is in close contact, and the disc valve 33 is in the direction in which the disc valve 33 is in close contact with the valve seat surface 35. Is urged by. Therefore, when the handle 27 is moved forward and the on-off valve 19 is in close contact with the communication hole 25, the pressure on the turbid liquid inlet 13 side becomes higher than the biasing pressure of the disc valve 33, and the disc valve 33 opens. Only when the turbid liquid is discharged, the turbid liquid is automatically flowed to the turbid liquid discharge port 15 side and discharged. Further, by turning the handle 27 and moving the on-off valve 19 backward, the inflow side and the discharge side can be communicated with each other regardless of the pressure state on the turbid liquid inlet 13 side.

[0005]

However, in the conventional air trap, the turbid liquid containing air is discharged one by one, and the blowing sound is loud enough to exceed 100 horns. . Further, when discharging the turbid liquid, gas, that is, air is also discharged at the same time, and the discharge amount reaches about 6 to 7 Nm ³ per hour in one air trap. Therefore,
Air must be supplied to maintain the pressure inside the compressed air equipment. Furthermore, when the turbid liquid is discharged, the turbid liquid that may contain oil may be scattered around. In addition to this, the conventional air trap has many failures such as being blown out and not being opened on the contrary, which requires a lot of time for maintenance and inspection.

The invention made in view of the above problems completely eliminates noise at the time of discharge and wasteful discharge of air,
It is another object of the present invention to provide an automatic turbid liquid discharge device which prevents foreign matters from entering and simplifies the structure to eliminate failures and facilitate maintenance and inspection.

[0007]

In order to achieve the above object, the present invention collects and discharges a turbid liquid containing a mixture of gas and liquid generated in a compressed air facility in which compressed air is circulated and used. A turbid liquid discharge device, which is connected to the compressed air facility to a container that stores a turbid liquid that is a mixture of gas and liquid generated in the compressed air facility, and the pressure inside the container and the compression A pressure equalizing pipe for adjusting the pressure in the air equipment is connected, and the container is provided with a container amount measuring means for measuring the amount of the liquid turbid liquid contained in the container and connected to the container. The turbid liquid discharge valve for discharging the liquid turbid liquid in the container is connected with an opening / closing means for controlling the opening / closing of the turbid liquid discharge valve according to the measurement result of the contained amount measuring means. This is an automatic turbid liquid discharging device.

[0008]

The turbid liquid, which is a mixture of gas and liquid generated in the compressed air facility, is fed into the container for containing the turbid liquid,
Be accommodated. In the container, the turbid liquid sent in a mixed state of gas and liquid is separated into gas and liquid. The content measuring means installed in the container measures the amount of the turbid liquid. The liquid component contained in the container is discharged to the outside of the turbid liquid discharge device through the turbid liquid discharge valve connected to the container, and the turbid liquid discharge valve is opened and closed by opening and closing the valve. Means are attached. The opening / closing means has a control means connected to the storage amount measuring means, and the control means controls the turbid liquid discharge valve according to the storage amount of the liquid in the container measured by the storage amount measuring means. Open and close. Further, a pressure equalizing pipe leading to a compressed air facility is connected to the turbid liquid container. Therefore, a certain amount of gas is accommodated in the container, and when the pressure of the gas becomes equal to or higher than the pressure of the gas in the compressed air facility, the gas in the container is sent back to the compressed air facility through the pressure equalizing pipe.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a state in which the turbid liquid automatic discharge device of the present invention is attached to an air cooler which is one of compressed air facilities. As shown in the figure, the turbid liquid automatic discharge device of the present embodiment has a turbid liquid container 41 for temporarily storing the turbid liquid D. This container 41 has a so-called H shape in which the side walls of two cylindrical containers 43 and 45 are communicated with each other, and one cylindrical container 43 is connected to an aftercooler device 49 of an air cooler via a turbid liquid extraction pipe 47. Connected. Therefore, the air sent into the aftercooler device 49 from the air supply pipe 51 is cooled, and the turbid liquid D generated at this time passes through the take-out pipe 47 and is stored in the container 41.
Poured into. Thus, once the turbid liquid D is stored in the container, even if a foreign matter is mixed in the turbid liquid D, it can be deposited in the container 41. The take-out pipe 47 for sending the turbid liquid D to the container 41 has a portion consisting of a vinyl hose 53 on the way, so that the inflow state of the turbid liquid D can be seen. Further container 41
Is connected to the air delivery pipe 57 of the aftercooler 49 via the pressure equalizing pipe 55a, and by opening a valve 59 attached in the middle of the pressure equalizing pipe 55, the pressure inside the container 41 and the air delivery pipe 57 are connected. The pressure can be balanced. Therefore, the air sent into the container 41 through the take-out pipe 47 can be returned to the air cooler again. The other cylindrical container 45 is connected to an aftercooler 49b indicated by a chain double-dashed line in FIG. 1 via a take-out pipe 47b for the turbid liquid D or a pressure equalizing pipe 55b.

Further, as shown in FIG. 1, the means for measuring the storage amount mounted in the container 41 has a bar member 61 extending in the vertical direction and mounted.
Three float switches 63, 65, 67, which are first, second, and third from the bottom, are attached to 1. The movement range of each of the float switches 63, 65, 67 is limited by a partition, and two or more float switches move up and down at the same time regardless of the level of the liquid surface of the liquid component Dw of the turbid liquid D. There is no such thing. The float switch may be attached in any manner as long as the malfunction of the float switch can be reliably prevented.

As shown, the other cylindrical container 4
A drain pipe 69 is connected to the lower part of the container 5,
The liquid component Dw inside is discharged from the discharge port 71 to the outside. A discharge valve 73 having an electromagnetic valve installed therein is attached to the discharge pipe 69.
An opening / closing means for controlling the opening / closing of the discharge valve 73 is connected to the. Further, the opening / closing means has a control means (not shown) which receives the ON / OFF operation signal of the float switch of the accommodation amount measuring means and opens / closes the discharge valve based on this signal. This control means is normally the second float switch 65.
The discharge valve 73 is opened when a signal indicating that the first float switch 63 has moved to the upper part within the movement range is received, and the discharge valve 73 is closed when the first float switch 63 moves to the lower part within the movement range. ing. The discharge pipe 69
An orifice 75 and a strainer 77 are attached to this, so that the desired discharging speed can be adjusted and the discharging operation can be performed smoothly and surely.

Next, the operation of discharging the turbid liquid generated in the aftercooler 49 by the automatic turbid liquid discharging device of this embodiment will be described in order. As shown in FIG. 2A, when the amount of the liquid component Dw contained in the container 41 is small, that is, when the liquid surface level is low, the float switches 63, 65, 67 mounted in the container 41. All three have moved to the lowest position. At this time, the discharge valve 73 attached to the discharge pipe 69 is in the closed state under the control of the control means, and therefore the liquid component Dw is not discharged. On the other hand, the turbid liquid D generated in the aftercooler 49 flows through the take-out pipe 47 in a state of being mixed with the compressed air, and then is poured into the container 41. In this way, when the cloudy liquid D mixed with the compressed air is poured into the container 41, the liquid level in the container rises and the second float switch 65 moves upward. When the second float switch 65 moves to the position shown in FIG. 2B, that is, the uppermost part, it sends a signal to the control means, and the control means receiving this signal is in the closed state of the discharge valve. 73 is opened. When the discharge valve 73 is opened, the liquid component Dw in the container 41 is discharged from the discharge port 71, and the liquid level of the liquid component Dw in the container 41 decreases. When the discharge of the liquid component Dw progresses and the first float switch 63 moves to the lowermost part within the movement range, the first float switch 63
A signal is sent from the float switch 63 to the control means, and the discharge valve 73 in the open state is closed. Thereafter, such an operation is repeated to automatically discharge the liquid component Dw.

Further, for some reason, even if the liquid level of the liquid component Dw reaches a predetermined level, the second float switch 65 does not operate normally, and the second float switch 65 does not operate normally.
If no signal is sent from the control means to the control means, the discharge valve 73
Does not open and the liquid level rises further. When the liquid level of the liquid component Dw thus raised is located within the floating range of the third float switch 67, the third float switch 67 rises as the liquid level rises. Then, as shown in FIG. 3, when the third float switch 67 moves to the uppermost part, a signal is sent from the third float switch 67 to the control means, and a patrol lamp (see FIG. 4) for warning the abnormality of the device is turned on. To be done. When a device abnormality occurs in this way, a warning is given, so that a failure can be dealt with quickly. At the same time when the patrol lamp is turned on, the discharge valve 73 may be opened to discharge the liquid component Dw from the container 41.

As a control means for realizing the above-described operation, for example, sequence control as shown in the sequence diagram of FIG. 4 can be cited. In this sequence diagram, the first float switch 63 is F1, the second float switch 65 is F2, and the third float switch 67.
Is shown as F3 and the drain valve 73 for the liquid component Dw is shown as EB. An electromagnetic valve that opens the discharge valve 73 is indicated by R1, and an electromagnetic valve that closes it by R2. The discharge control of the liquid component Dw may be performed using a means other than the sequence control.

[0015]

As described above, according to the present invention, the structure of the turbid liquid discharging device can be simplified to reduce failures, and reliable operation can be performed, so that the reliability is further improved. When discharging the turbid liquid, air is not discharged and noise is not generated. Further, the conventional treatment of several disk traps can be handled by one turbid liquid automatic discharging device of the present invention.

[Brief description of drawings]

FIG. 1 is an external view showing an embodiment of an automatic turbid liquid discharging device of the present invention.

FIG. 2 is a side view showing an operating state.

FIG. 3 is a side view showing an operating state.

FIG. 4 is a circuit diagram showing a sequence diagram which is a position embodiment of the control means.

FIG. 5 is a perspective view showing a conventional air trap.

FIG. 6 is a side sectional view showing a conventional air trap.

[Explanation of symbols]

41 ... container 47 ... turbid liquid extraction pipe
55 ... Pressure equalizing pipe 63 ... First float switch 65 ... Second float switch 67 ... Third float switch 69 ... Discharge pipe
71 ... Discharge port 73 ... Discharge valve D ... Suspended liquid
Dw ... Liquid component

Claims (1)

[Claims] 1. A turbid liquid discharge device for collecting and discharging a turbid liquid which is a mixture of gas and liquid generated in a compressed air facility for circulating compressed air, and which is generated in the compressed air facility. A container for containing a cloudy liquid in which a gas and a liquid are mixed, is connected to the compressed air facility, and is connected to a pressure equalizing pipe for adjusting the pressure in the container and the pressure in the compressed air facility, A container amount measuring means for measuring the amount of the liquid turbid liquid contained in the container is attached to the container, and the container is connected to the container to discharge the liquid turbid liquid in the container. The turbid liquid discharge valve is connected to an opening / closing means for controlling opening / closing of the turbid liquid discharge valve according to a measurement result of the contained amount measuring means.