Automatic drain device for liquids

Abstract

The present invention relates to an automatic drain device for liquids, which has been improved so that liquid can be automatically discharged and can also be manually drained when necessary. The present invention comprises: a body (10) in which a water collection chamber (12) having an inverted conical inclined inner circumferential surface (12a) is provided, and an upper cap member (11) having a liquid inlet (13) is coupled to the upper end of the water collection chamber (12); an inverted conical buoyant valve member (20) which is installed inside the water collection chamber (12) so as to be movable in the vertical direction, which has a plurality of downwardly inclined ribs (23) and downflow passages (24) arranged at equal intervals around the circumference thereof, and which has a valve packing (25) protruding from the bottom central portion thereof; and a drain means (30) configured such that a liquid retention space (12b), which is provided below the buoyant valve member (20) in the lower portion of the water collection chamber (12), and a vertical drain hole (32) of a drain nipple (31), which is provided at the lower central portion of the liquid retention space (12b), are opened and closed by the valve packing (25), and a nipple shaft portion (34) of the drain nipple (31), which is biased downward by a compression spring (37), penetrates through a manual drain port (16) in a guide protrusion (15) of the body (10), such that the manual drain port (16) can be opened and closed by an opening / closing O-ring (35) on the nipple shaft portion (34) of the drain nipple (31).

Description

Automatic drain device for liquids

[0001] The present invention relates to an auto-drain device for liquids, and more specifically, to an improved auto-drain device for liquids that allows liquids to be discharged automatically while also being drained manually if necessary.

[0002]

[0003] The auto drain of Korean registered patent No. 10-2438299 was disclosed by the applicant.

[0004]

[0005] However, the aforementioned prior art is equipped with a liquid retention space between a buoyancy valve member that moves up and down in the collection chamber and a drain nipple, so if the factory operation is stopped and employees leave work in winter, the liquid in the liquid retention space freezes into ice if it is water, resulting in the loss of the auto-drain function the next day. Furthermore, since the ice must be melted to operate normally, a problem was caused in which significant effort and time were wasted.

[0006]

[0007] Furthermore, when foreign substances were present in the liquid retention space, not only was there a problem where the drain hole became clogged by the substances, but it also caused a very cumbersome and inconvenient issue requiring the entire auto-drain to be disassembled and reassembled to remove the substances.

[0008]

[0009] The purpose of the present invention is to provide an improved automatic drain device for liquids that allows liquids to be discharged automatically, while also allowing them to be drained manually if necessary.

[0010] Another objective of the present invention is to significantly improve product reliability by enabling the liquid accumulated in the lower part of the auto drain device to be drained manually as needed, thereby preventing the liquid remaining inside the auto drain device from freezing during winter and simultaneously facilitating the quick and easy removal of foreign substances.

[0011]

[0012] The present invention is characterized by comprising: a body configured to have a collection chamber having an inverted conical inclined inner surface and to have an upper cap member having a liquid inlet attached to the upper part of the collection chamber; and a buoyancy valve member in the shape of an inverted conical shape that is embedded so as to be movable in the vertical direction within the collection chamber, and includes a plurality of downward inclined ribs and a drop drainage channel provided at equal intervals in the direction of the circumferential surface, and a valve packing protruding from the lower center, wherein a liquid accumulation space formed in the lower part of the collection chamber on the lower side of the buoyancy valve member and a vertical drain hole of a drain nipple provided in the lower center of the liquid accumulation space are opened and closed by the valve packing, the nipple shaft of the drain nipple penetrates a manual drain hole provided in a guide protrusion of the body, and an opening / closing O-ring provided in the nipple shaft of the drain nipple is configured to open and close the manual drain hole.

[0013]

[0014] Another feature is that an opening / closing piece provided on the upper part of the drain nipple of the drainage means is detachably attached to an opening / closing groove provided on the upper body of the manual drain, and a manual guide member that moves guided by a guide protrusion is fastened to a fastening screw portion at the lower end of the nipple shaft, and a resilient spring supported at the lower end of the guide protrusion applies a resilient force to the manual guide member so that the opening / closing piece is in close contact with the opening / closing groove, and at the same time, the opening / closing O-ring is configured to be in close contact with the upper part of the manual drain.

[0015]

[0016] Another feature is that the diameter of the nipple shaft is configured to be relatively smaller than the diameter of the manual drain, so that the liquid in the liquid accumulation space can be discharged through the manual drain.

[0017]

[0018] The present invention has the effect of providing an auto-drain device for liquids that allows liquids to be discharged automatically, while also allowing them to be drained manually if necessary.

[0019]

[0020] Therefore, the present invention allows liquid accumulated at the bottom of the auto-drain device to be drained manually as needed. This prevents the liquid remaining inside the auto-drain device from freezing, thereby protecting the product from freezing, and also enables quick and easy removal of foreign substances, thus providing the effect of significantly improving product reliability.

[0021]

[0022] FIG. 1 is an overall perspective view of an auto drain device according to the present invention in a half-sectional state.

[0023] FIG. 2 is an overall cross-sectional view of the present invention,

[0024] FIG. 3 is an overall perspective view of a buoyancy valve member implemented according to the present invention.

[0025] FIG. 4 is a cross-sectional view along the Y-Y' line of FIG. 2,

[0026] FIG. 5 is a cross-sectional view illustrating a state of automatic drainage by the present invention,

[0027] FIG. 6 is a cross-sectional view illustrating the state of manual drainage by the present invention.

[0028]

[0029] The present invention is configured to have a body (10) configured to have a water collection chamber (12) having an inverted conical inclined inner surface (12a) and an upper cap member (11) having a liquid inlet (13) on the upper part of the water collection chamber (12), and to have an inverted conical buoyancy valve member (20) which is built so as to be movable in the vertical direction within the water collection chamber (12), has a plurality of downward inclined ribs (23) and a drop drainage channel (24) provided at equal intervals in the direction of the circumferential surface, and has a valve packing (25) protruding from the lower center, thereby having a liquid accumulation space (12b) formed in the lower part of the water collection chamber (12) on the lower side of the buoyancy valve member (20).

[0030]

[0031] In addition, a drainage means (30) is provided such that the vertical drain hole (32) of the drain nipple (31) provided at the lower central part of the liquid accumulation space (12b) is opened and closed by a valve packing (25), the nipple shaft portion (34) of the drain nipple (31) penetrates the manual drain port (16) provided on the guide protrusion (15) of the body (10), and the opening / closing O-ring (35) provided on the nipple shaft portion (34) of the drain nipple (31) can open and close the manual drain port (16), thereby enabling the liquid (W) in the liquid accumulation space (12b) to be automatically drained, and if necessary, the drain nipple (31), which receives the elasticity of the elastic spring (37) in the downward direction, is forcibly moved in the upward direction to automatically drain the liquid (W) in the liquid accumulation space (12b) through the manual drain port (16).

[0032]

[0033] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0034]

[0035] Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. These embodiments are provided to more fully explain the present invention to those with average knowledge in the art. Detailed descriptions of known functions and configurations that are deemed to unnecessarily obscure the essence of the present invention may be omitted.

[0036]

[0037] The present invention is broadly classified as shown in FIGS. 1 and 2 and is composed of a body (10) that is fastened so that an upper cap member (11) having a liquid inlet (13) on the upper part is placed over it, a buoyancy valve member (20) that is inserted into a water collection chamber (12) provided in the body (10) and installed to be movable in the up and down direction, a drainage means (30) provided at the bottom of the body (10) for draining liquid, and a safety cover member (40) that is placed over the outside of the body (10).

[0038]

[0039] The water collection chamber (12) of the body (10) is configured to have an inverted cone shape with a diameter that is wide at the top and narrows toward the bottom, thereby having an inverted cone-shaped inclined inner surface (12a).

[0040]

[0041] Accordingly, the present invention is preferably configured such that a buoyancy valve member (20) is inserted into the water collection chamber (12) of the body (10) and then an upper cap member (11) is fixed to the upper part of the body (10), and a rubber packing (14) is placed between the body (10) and the upper cap member (11) to prevent liquid leakage.

[0042]

[0043] It is preferable that the body (10) be made of a plastic material so that the buoyancy valve member (20) inside the water collection chamber (12) can be visually identified, and it is preferable that the upper cap member (11) be made of a metal material so that the deformation of the body (10) can be prevented as much as possible.

[0044]

[0045] It is preferable that the buoyancy valve member (20) be configured to have a buoyancy generating air chamber (21) inside and be fixed so that a sealing cap member (22) is placed over the upper part of the buoyancy generating air chamber (21), and it is preferable that the buoyancy valve member (20) be made of a plastic material with a specific gravity lower than that of water.

[0046]

[0047] Additionally, the buoyancy valve member (20) is configured in an inverted cone shape having a diameter that is wider at the top and narrows towards the bottom, and is configured to have a plurality of downward inclined ribs (23) protruding at equal intervals in a downward direction as shown in FIGS. 3 and 4 on the outer surface, so that each of the downward inclined ribs (23) has a drop drainage channel (24). That is, the downward inclined ribs (23) protrude parallel to each other in the up and down direction on the outer surface of the inverted cone shape of the buoyancy valve member (20).

[0048]

[0049] And as shown in FIG. 2, when the upper end of the drain nipple (31) of the drainage emergency measure means (30) is in contact with the inverted cone-shaped valve packing (25) provided at the lower center of the buoyancy valve member (20) and at the same time the buoyancy valve member (20) is completely moved downward, the inverted cone-shaped inclined inner surface (21a) of the water collection chamber (12) and the outer end of the downward inclined rib (23) of the buoyancy valve member (20) are configured to be completely aligned. In addition, in the above state, a liquid accumulation space (12b) is formed so that liquid (W) accumulates towards the lower side of the buoyancy valve member (20).

[0050]

[0051] Referring to FIG. 2, the present invention allows liquid to flow into the collection chamber (12) through the liquid inlet (13) and fall onto the upper surface of the buoyancy valve member (20), spreading out in all directions, and then flow downward through the drop drainage channel (24) on the outer surface of the buoyancy valve member (20).

[0052]

[0053] As the liquid flowing down along the drop drain (24) fills the liquid accumulation space (122) and gradually rises to the middle part of the upper drop drain (24), the buoyancy generated causes the buoyancy valve member (20) to move upward, thereby causing the valve packing (25) that was blocking the vertical drain hole (32) of the drain nipple (31) to move upward as shown in FIG. 5 and fall off the upper part of the drain nipple (31), thereby opening the vertical drain hole (32) and automatically discharging the liquid (W) in the liquid accumulation space (122) into the vertical drain hole (32).

[0054]

[0055] And as the liquid (W) is discharged, the liquid level in the liquid storage space (122) gradually decreases, and the buoyancy valve member (20) also gradually decreases, and as a result, the valve packing (25) of the buoyancy valve member (20) comes into close contact with the upper part of the drain nipple (31) as shown in FIG. 2, thereby blocking the vertical drain hole (32) and automatically stopping the discharge of the liquid (W).

[0056]

[0057] In addition, the present invention allows the buoyancy valve member (20) to move upward due to buoyancy, so that even if the vertical centerline (not shown) of the vertical drain hole (32) and the centerline (not shown) of the valve packing (25) do not align in a vertical state, as the liquid (W) is drained and the buoyancy valve member (20) moves downward, the downward sloping rib (23) comes into contact with the inverted conical inclined inner surface (21a) and gradually moves downward, so that the buoyancy valve member (20) gradually becomes upright in a vertical direction, and finally, as shown in FIG. 2, the downward sloping rib (23) settles in a state that aligns with the inverted conical inclined inner surface (21a), so that the vertical centerline of the vertical drain hole (32) and the centerline of the valve packing (25) automatically align in a vertical direction, thereby operating to shield the vertical drain hole (32) without malfunction.

[0058]

[0059] Accordingly, the present invention allows the liquid (W) to gradually flow into the liquid retention space (12b), causing the buoyancy valve member (20) to move upward due to buoyancy and, after drainage, move the buoyancy valve member (20) downward again to block the vertical drain hole (32), thereby allowing the liquid (W) to be automatically drained at any time.

[0060]

[0061] Meanwhile, as shown in FIGS. 1 and 2, the drainage means (30) is configured to have a guide protrusion (15) in the lower central part of the body (10) and a manual drain (16) inside, and to have an opening / closing groove (17) above the manual drain (16).

[0062]

[0063] In addition, the drain nipple (31) is configured to have an opening / closing piece (33) that can be detachably attached to the opening / closing groove (17) in the middle, and the lower part of the opening / closing piece (33) is configured to have a long nipple shaft (34) with a diameter relatively smaller than that of the manual drain (16), and the lower part of the opening / closing piece (33) is configured to have an opening / closing O-ring (35) installed so that the nipple shaft (34) passes through it. It is preferable that the opening / closing groove (17) and the opening / closing piece (33) that is detachably attached thereto be configured in a square shape, for example, as shown in FIG. 1, so that the drain nipple (31) cannot rotate and can only move in the up and down direction.

[0064]

[0065] Additionally, a manual guide member (36) having a guide groove (36a) into which a guide projection (15) is inserted is configured to be fastened to a fastening screw portion (34a) provided at the lower part of the nipple shaft portion (34), and a resilient spring (37) acting to provide elasticity in the direction of the manual guide member (36) is configured to be provided between the guide projection (15) and the manual guide member (36). Reference numeral 36b is a through hole through which liquid is discharged, and reference numeral 38 indicates a drain hose connector fastened to the lower part of the nipple shaft portion (34).

[0066]

[0067] Accordingly, as shown in FIGS. 2 and 5, when the liquid (W) is automatically drained into the vertical drain hole (32) by the buoyancy valve member (20) moving back and forth in the up and down direction, the elastic spring (36) presses the manual guide member (36) downward, thereby causing the opening / closing piece (33) to be inserted into the opening / closing groove (17) and in a state of close contact, and at the same time, the opening / closing O-ring (35) is in close contact with the upper part of the manual drain hole (16) and shielded, so that the liquid (W) in the liquid accumulation space (12b) is not drained through the manual drain hole (16).

[0068]

[0069] Meanwhile, if the nipple shaft (34) is pushed upward as needed as shown in FIG. 6, the elastic spring (37) is compressed and the opening / closing piece (33) and the opening / closing O-ring (35) move upward, causing the liquid (W) in the liquid accumulation space (12b) to be discharged to the outside through the opening / closing groove (17) and the manual drain (16).

[0070]

[0071] Meanwhile, it is preferable to make the body (10) and the safety cover member (40) transparent plastic so that the liquid (W) in the liquid storage space (12b) can be visually checked to see if it has been completely drained to the outside through the manual drain (16), but it is also possible to check whether it has been drained even when the liquid is no longer discharged from the manual drain (16).

[0072]

[0073] Therefore, when the liquid (W) in the liquid accumulation space (12b) is completely drained, the pressure applied by the finger to the nipple shaft (34) is released. As the manual guide member (36) and the drain nipple (31) move downward due to the elasticity of the spring (37), the opening / closing piece (33) is inserted into the opening / closing groove (17) and comes into close contact. At the same time, the opening / closing O-ring (35) comes into close contact with the upper part of the manual drain (16) to block it, thereby blocking the liquid (W) in the liquid accumulation space (12b) from being drained through the manual drain (16).

[0074]

[0075] Therefore, in the present invention, for example, when factory operation is stopped during winter or when there is a need to remove foreign matter from the liquid (W) in the liquid accumulation space (12b), the liquid (W) can be quickly and easily discharged through the manual drain (16) by simply manually pressing the nipple shaft (34) upward.

[0076]

[0077] The present invention is not necessarily limited to what is illustrated and described in the drawings, and since it may be modified and implemented in various ways by those skilled in the art to which the invention pertains, it is obvious that it should be broadly protected as long as it does not deviate significantly from the scope of the claims.

[0078]

[0079] The present invention relates to an automatic drain device for liquids that allows liquids to be discharged automatically, but can also be drained manually if necessary. In this device, a buoyancy valve member (20) is moved up and down in the collection chamber (12) of the body (10) so that the valve packing (25) opens and closes the vertical drain hole (32) of the drain nipple (31), thereby allowing the liquid (W) in the liquid accumulation space (12b) to be automatically drained. Meanwhile, if necessary, the drain nipple (31), which receives the elasticity of the elastic spring (37) in the downward direction, is manually moved upward to allow the liquid (W) in the liquid accumulation space (12b) to be manually drained through the manual drain (16). It can be used in facilities where steam pipes or compressed air pipes are installed, by being installed at the bottom of an air pipe line or an air separator, to drain steam condensate or condensate separated by compressed air.

Claims

1. A body (10) configured to have a water collection chamber (12) having an inverted conical inclined inner surface (12a), and an upper cap member (11) having a liquid inlet (13) on the upper part of the water collection chamber (12) and fastened thereto; It includes an inverted cone-shaped buoyancy valve member (20) that is built to be movable in the vertical direction within the above water collection chamber (12), has a plurality of downward inclined ribs (23) and drop drainage channels (24) provided at equal intervals in the circumferential direction, and has a valve packing (25) protruding from the lower center; A liquid accumulation space (12b) formed in the lower part of the water collection chamber (12) on the lower side of the buoyancy valve member (20); and A liquid auto-drain device characterized by comprising a drainage means (30) configured such that a vertical drain hole (32) of a drain nipple (31) provided at the lower central part of the liquid accumulation space (12b) is opened and closed by a valve packing (25), a nipple shaft portion (34) of the drain nipple (31) penetrates a manual drain hole (16) provided in a guide protrusion (15) of the body (10), and an opening / closing O-ring (35) provided in the nipple shaft portion (34) of the drain nipple (31) can open and close the manual drain hole (16).

2. In Paragraph 1, A liquid auto-drain device characterized by the fact that an opening / closing piece (33) provided on the upper part of the drainage nipple (31) of the above-mentioned drainage means (30) is detachably attached to an opening / closing groove (17) provided on the upper body (10) of the manual drain (16), and a manual guide member (36) that moves guided by a guide protrusion (15) is fastened to a fastening screw portion (34a) at the lower end of the nipple shaft portion (34), and a resilient spring (37) supported at the lower end of the guide protrusion (15) is configured to impart resilient force to the manual guide member (36) so that the opening / closing piece (33) is in close contact with the opening / closing groove (17) and at the same time, the opening / closing O-ring (35) can be in close contact with the upper part of the manual drain (16).

3. In Paragraph 1, A liquid auto-drain device characterized by being configured such that the diameter of the nipple shaft portion (34) is relatively smaller than the diameter of the manual drain (16), so that the liquid (W) in the liquid accumulation space portion (12b) can be discharged through the manual drain (16).

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