JP3038880U - Drain scattering prevention device - Google Patents

Abstract

(57) [PROBLEMS] To provide a drain scattering prevention device having a simple structure for preventing scattering of drain generated from compressed air equipment of a compressor into the atmosphere. A drain generated from compressed air equipment such as an aftercooler 10, an air dryer 11, an air filter 12 and a receiver tank 13 which are connected to a compressor 9,
It is sent to the upper end of the conduit 1 which is erected in the drain storage tank 4 through the drain track 7, and is ejected from the discharge port 2 at the lower end thereof into the drain 5 which is stored in the drain storage tank 4. Therefore, the compressed air entrained with the drain becomes bubbles in the drain 5, rises in the drain 5 and is discharged to the atmosphere side, the mist of the drain is prevented, and scattering is surely prevented.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a drain scattering prevention device suitable for preventing scattering of mist generated by drain discharged from a compressed air device of a compressor and compressed air discharged together with the drain.

[0002]

[Prior art]

 As shown in FIG. 3, the compressed air of the compressor 9 is sent from the exhaust pipe 18 through the compressed air device 19 to the air use side by the air supply pipe 14 equipped with the opening / closing valve 15. On the other hand, the drain is discharged from the compressed air device 19 together with the compressed air. In the prior art, the drain containing compressed air (hereinafter referred to as “drain”) was released directly into the atmosphere or directly into a waterway. However, as shown in FIG. 3, a conventional type is one in which a compressed air device 19 is connected to a drive-controlled drain trap 7 (auto drain), and the drain from the drain trap 7 is introduced into the drain storage tank 4. It was also adopted in technology.

As shown in FIG. 3, the drain storage tank 4 has an inlet tank 20 on an upper side thereof, and an inlet pipe 21 provided in the inlet tank 20 is connected to a drain pipe 8 from a drain trap 7 to form an inlet. As an example, a drain is introduced into the tank 20 and the drain 5 is stored in the drain storage tank 4 via the guide pipe 22. An opening 24 that opens to the atmosphere side is formed above the inlet tank 20, and the opening 24 is provided with a sponge filter 25 and the like.

As one of the known techniques regarding the drain scattering prevention device, there is Japanese Utility Model Laid-Open No. 4-5208. In this device, a hook-shaped drain separating member (19) is provided in the drain discharge container (17), and the drain discharge container (17) discharges it from the discharge port (16) of the discharge pipe (15). It is designed to prevent the drain from scattering when receiving drain.

[0005]

[Problems to be solved by the device]

 In the conventional drain discharge device shown in FIG. 3, the drain discharged from the drain trap is discharged into the inlet tank 20 via the drain pipe 8 and the introduction pipe 21. Therefore, mist is generated in the inlet tank 20, and this may be scattered from the opening 24 to the atmosphere side. Therefore, although the sponge filter 25 is provided in the opening 24 as described above, it is difficult to completely prevent the mist from scattering. Further, the sponge filter 25 needs to be replaced from time to time, which makes maintenance difficult.

[0006] In the "Drain scattering prevention device" of Japanese Utility Model Laid-Open No. 4-5208, the drain is prevented from scattering by causing the drain to collide with the drain separation member (19), and there is a temporary effect. , It is difficult to completely prevent drainage.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a drain scattering prevention device having a simple structure and reliably preventing scattering of drain.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is intended to prevent the drainage of the drain temporarily stored in the drain storage tank from the compressed air equipment connected to the compressor via the drain trap during the discharge. A drain scattering prevention device of the above, in which a drain is installed at the bottom of the drain in the drain storage tank and a conduit exposing the upper end to the atmosphere side is provided, and the outlet of the drain trap and the upper end of the conduit are A drain splash prevention device that connects the The drain storage tank is characterized by being provided with an overflow pipe for maintaining a constant water level of the drain in the tank.

The drain discharged from the drain trap is introduced into the conduit from the upper end of the conduit provided in the drain storage tank, descends in the conduit, and is stored in the drain storage tank from the discharge port at the lower end of the conduit. It is released into the accumulated drain. Therefore, the mist becomes bubbles in the storage tank, is released to the atmosphere side, and the mist is completely prevented from scattering. In addition, an overflow pipe is attached to the drain storage tank in order to prevent adverse effects caused by overflow of the drain in the drain storage tank.

[0010]

[Embodiment of the invention]

 An embodiment of a drain scattering prevention device of the present invention will be described in detail below with reference to the drawings. As shown in FIG. 1, a compressed air device such as an aftercooler 10, an air dryer 11, an air filter 12 and a receiver tank 13 is sequentially connected to the compressor 9 via an exhaust pipe 8. The compressed air separated into oil and air in the receiver tank 13 is delivered to the air use side via an air delivery pipe 14 having an on-off valve 15.

On the other hand, a drain containing compressed air (hereinafter referred to as “drain”) is discharged from the compressed air equipment such as the aftercooler 10 through the drain guide pipe 16, and the drain from each of these compressed air equipment. Is introduced into the drain trap 7 via the drain pipe 17. The drain trap 7 is intermittently driven and controlled, and is discharged to the drain storage tank 4 side by a drain pipe 8 connected to the downstream side of the drain trap 7.

The drain storage tank 4 is composed of a container having an appropriate volume and having an opening at the top, and stores an appropriate amount of drain 5 therein. In this example, the conduit 1 is a hollow pipe standingly arranged in the drain storage tank 4, and an opening 3 is formed at the upper end and a discharge port 2 is formed at the lower end.

As shown in FIG. 1, the drain pipe 8 connected to the drain trap 7 rises upward from the drain trap 7 side, and its upper end is connected to the opening 3 at the upper end of the conduit 1. On the other hand, the discharge port 2 at the lower end of the conduit 1 is disposed so as to be submerged in the drain 5 in the drain storage tank 4.

The drain is discharged from each of the compressed air devices not only during the operation of the compressor 9 but also during the stop, and the drain is introduced into the drain storage tank 4 from the drain trap 7 through the drain pipe 8. As described above, since compressed air is mixed in the drain, mist is generated due to discharge of the drain, or in the case of this example, the drain pipe 8 is connected to the conduit 1, so the drain is discharged from the discharge port 2 Will be ejected into the drain 5 of the drain storage tank 4. Therefore, the mist becomes bubbles 23 and is not discharged to the atmosphere side in the form of mist. That is, the drain ejected from the discharge port 2 of the conduit 1 becomes a bubble 23 as shown in the figure and rises in the drain 5, and the compressed air in the drain is discharged from the surface of the drain 5 to the atmosphere side as a gas. It is only done. Therefore, unlike the prior art, the scattering of drain does not occur, and the generation of mist-like drain is completely prevented. As described above, according to the present invention, the effect of preventing the scattering of the drain can be enhanced by the extremely simple means of simply disposing the conduit 1 in the drain storage tank 4.

The amount of the drain 5 stored in the drain storage tank 5 gradually increases. Therefore, if the drain storage tank 4 is left as it is, there is a trouble in which the drain 5 flows out through the opening above the drain storage tank 4. In order to prevent this problem, an overflow pipe 6 is attached to the drain storage tank 4 as shown in FIG. As a result, the drain 5 in the drain storage tank 4, which has been stored at a certain level or higher, is discharged from the overflow pipe 6 and sent to the drain processing device (not shown). By providing the overflow pipe 6, the drain is stably bubbled in the drain storage tank 4, and the drain is reliably prevented from scattering.

Although the single hollow tube described above is used as the conduit 1, it is of course possible to use a plurality of tubes, and the discharge of the drain into the drain storage tank 4 is not limited to the discharge port 2. Absent. For example, a small hole may be formed on the lower end side of the conduit 1, and the drain may be ejected from the small hole into the drain 5 of the drain storage tank 4.

[0017]

[Effect of the invention]

 1) According to the drain scattering prevention device of the first aspect of the present invention, the drain generated from each compressed air device connected to the compressor is stored in the drain storage tank by the conduit via the drain trap. As it is released into the drain, the compressed air in the drain becomes bubbles and prevents the generation of mist. Therefore, the scattering of drainage as in the conventional technique is completely prevented. 2) According to the drain scattering prevention device of claim 2 of the present invention, since the overflow pipe is attached to the drain storage tank, the amount of drain accumulated in the drain storage tank is stabilized and the inside of the tank is stabilized. The bubbling of the drain in is stably performed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an overall schematic structure of an exhaust system of a compressor provided with a drain scattering prevention device of the present invention.

FIG. 2 is a partial configuration diagram showing a drain storage tank provided with an overflow pipe according to the present invention.

FIG. 3 is a configuration diagram showing an example of an overall schematic structure of an exhaust system of a conventional compressor.

[Explanation of symbols] 1 conduit 2 discharge port 3 opening 4 drain storage tank 5 drain 6 overflow pipe 7 drain trap 8 drain pipe 9 compressor 10 aftercooler 11 air dryer 12 air filter 13 receiver tank 14 air supply pipe 15 open / close valve 16 drain induction pipe 17 Drain pipe 18 Exhaust pipe 19 Compressed air equipment 23 Air bubbles

Claims (2)

[Utility model registration claims] 1. A drain scattering prevention device for preventing scattering during discharge of drain that is temporarily stored in a drain storage tank from a compressed air device connected to a compressor through a drain trap. A drain which is provided with a discharge port at a lower end and which has an upper end exposed to the atmosphere side, is disposed in the drain of the drain storage tank, and the outlet of the drain trap is connected to the upper end of the conduit. Anti-scattering device. 2. The drain scattering prevention device according to claim 1, wherein the drain storage tank is provided with an overflow pipe for maintaining a constant water level of the drain in the tank.