KR101790317B1 - Free Float Steam Trap - Google Patents
Free Float Steam Trap Download PDFInfo
- Publication number
- KR101790317B1 KR101790317B1 KR1020150148107A KR20150148107A KR101790317B1 KR 101790317 B1 KR101790317 B1 KR 101790317B1 KR 1020150148107 A KR1020150148107 A KR 1020150148107A KR 20150148107 A KR20150148107 A KR 20150148107A KR 101790317 B1 KR101790317 B1 KR 101790317B1
- Authority
- KR
- South Korea
- Prior art keywords
- float
- valve chamber
- steam trap
- condensed water
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- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/20—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by floats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
- F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
- F16T1/38—Component parts; Accessories
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Float Valves (AREA)
Abstract
The present invention relates to a free float steam trap (hereinafter, referred to as " free float steam trap ") which opens or closes an orifice by a float valve body of a ball type housed in a free state in a valve chamber, thereby automatically discharging only condensed water from a mixing system of steam and condensed water A free float steam trap according to an embodiment of the present invention includes an inlet for introducing steam and condensed water, a discharge port for discharging condensed water, a valve chamber formed between the inlet and the outlet, A valve body having an orifice communicating with a lower end of the valve chamber and having a connection port communicating with the discharge port at the other end thereof to guide the condensed water in the valve chamber to the discharge port; A spherical float installed in the valve chamber to float by the condensed water to open and close the orifice; And a supporting member having a screw shaft portion inserted and coupled to the bottom surface of the valve chamber and a support portion supporting the float in the form of a dome upwardly convex on the upper end of the screw shaft portion .
Description
[0001] The present invention relates to a free float steam trap, and more particularly, to a free float steam trap using a float valve body which is freely accommodated in a valve chamber using a difference in specific gravity between steam and condensed water, Thereby allowing only the condensate to be automatically discharged from the mixed system of steam and condensed water. The present invention relates to a free float steam trap.
Generally, a steam trap is a valve installed in a steam line such as a steam use equipment, a heat radiator for a heating or a heat exchanger for a process, a high temperature steam flows in the steam line of the steam using equipment, Is condensed to generate condensed water, which is used to efficiently remove the condensed water from the steam using equipment and prevent the leakage of the steam.
Conventional steam traps include a bimetal type, a bellows type, and a bubble type. In the bimetal method, the bimetal bending amount or size is changed according to the temperature change, so that the position of the valve plug, which is directly coupled with the bimetal or connected by the link, is moved to open and close the orifice formed in the gate In the case of bimetal, the shape changes according to the temperature. Therefore, if the rapid temperature change does not occur, the operating speed is limited. This slows down the opening / closing speed of the orifice formed in the gate and slows the discharge of condensed water. There are many disadvantages.
Although the bellows-type method may have a faster response speed than the bimetallic type, the bellows has a short lifetime due to the characteristics of the bellows. Therefore, there is a disadvantage in that frequent replacement is required, a scale is piled around the plug attached to the bellows, There is a problem that steam is leaked.
A method using a float floated by a fluid (free float steam trap) is a method of opening or closing a gate orifice by using a valve plug operated like a float due to the float being moved according to the level of the condensed water. The float is moved according to the water level of the steam, so that the response speed is fast and the flow rate of the steam is small.
These free float steam traps have a support that holds and holds the float inside the valve chamber. However, since the conventional stock floats constituted by the free float steam traps are integrally formed inside the valve chamber, precise post-processing is required to accurately manufacture the support base, which increases manufacturing cost.
Also, conventional free float steam traps can not accurately prevent the discharge port through which condensate is discharged unless the float is made into a complete sphere. That is, in the conventional float, two hemispherical parts having the same thickness are welded to each other to form a complete sphere. If the welded part is not smooth and precisely machined, the entire float can not be a perfect sphere, There is a problem in that the orifice can not be accurately opened or closed when it is supported by the support member.
However, since it is very difficult to precisely process the welded part of the float to produce a complete sphere, it is not manufactured in Korea but is imported from abroad.
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a valve apparatus for an internal combustion engine in which a support for supporting a float is coupled to a bottom surface of a valve chamber, Free float steam trap.
Another object of the present invention is to provide a free float steam trap capable of easily manufacturing a float in a complete sphere shape, thereby reducing manufacturing costs.
According to an aspect of the present invention, there is provided a free float steam trap comprising: an inlet for introducing steam and condensed water; a discharge port for discharging condensed water; a valve chamber formed between the inlet and the outlet; A valve body having an orifice communicating with a lower end of the chamber and having a connection port communicating with the discharge port at the other end thereof and guiding the condensed water of the valve chamber to the discharge port; A spherical float installed in the valve chamber to float by the condensed water to open and close the orifice; And a supporting member having a screw shaft portion inserted and coupled to the bottom surface of the valve chamber and a support portion supporting the float in the form of a dome upwardly convex on the upper end of the screw shaft portion .
According to another aspect of the present invention, there is provided a free float steam trap including an inlet for introducing steam and condensed water, a discharge port for discharging condensed water, a valve chamber formed between the inlet and the outlet, and an orifice communicating with the lower end of the valve chamber at one end And a guide passage communicating with the discharge port is formed at the other end to guide the condensed water of the valve chamber to the discharge port; A spherical float installed in the valve chamber to float by the condensed water to open and close the orifice; And a support member protruding from a bottom surface of the valve chamber and supporting the float, wherein the float is hollow and the lower portion is heavier than the upper portion.
According to one aspect of the present invention, the support portion formed on the upper portion of the support member has a rounded dome shape, so that when the float is seated on the support portion, the float can be inclined toward the orifice to accurately close the orifice, The state can be stably maintained.
In addition, when the support member is worn or damaged, the support member can be easily separated from the valve chamber and replaced with a new one, thereby facilitating maintenance.
According to another aspect of the present invention, if the lower part of the float is made heavier than the upper part and the lower part closes the orifice, only the lower float part of the float can be made into a smooth spherical surface, There is an effect that it is very easy to manufacture the float.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing a substantial part of a free float steam trap according to an embodiment of the present invention; FIG.
2 is a perspective view showing a float of the free float steam trap of FIG.
FIG. 3 and FIG. 4 are a vertical sectional view and a cutaway perspective view showing an embodiment of a float of the free float steam trap according to the present invention.
5 and 6 are a vertical sectional view and a cutaway perspective view showing another embodiment of the float of the free float steam trap according to the present invention.
7 is a perspective view illustrating an embodiment of a support member for a free float steam trap according to the present invention.
8A to 8C are a perspective view, a side view, and a plan view, respectively, of a support member of a free float steam trap according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a free float steam trap according to the present invention will be described in detail with reference to the accompanying drawings.
Referring to FIG. 1, a free float steam trap according to an embodiment of the present invention includes a
The
A guide passage (14) for guiding the condensed water in the valve chamber (13) to the discharge port (12) is formed at one side of the valve body (10). An
The
The
Also, the
When the
3 and 4, the thickness of the
Meanwhile, the
7, the
On the upper surface of the
When the supporting
The
Also, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims. And it is to be understood that such modified embodiments belong to the scope of protection of the present invention defined by the appended claims.
10: valve body 11: inlet
12: outlet 13: valve chamber
14:
15: valve seat 17:
20: float 21: upper float part
22: Lower float part 23: Weight weight
30: support member 31: screw shaft portion
32: Support portion 33: Tool insertion groove
Claims (17)
A spherical float 20 floatably installed in the valve chamber 13 by condensed water to open or close the orifice 14a while contacting or separating the valve seat 15;
A screw shaft 31 inserted and coupled to the bottom surface of the valve chamber 13 and a dome shaped as a convex curved surface on an upper end of the screw shaft 31, A support member 30 having a support 32 for supporting the float 20 in direct contact with the float 20 to contact the valve seat 15;
/ RTI >
The float 20 is welded to each other with the hemispherical upper float portion 21 and the semi-spherical lower float portion 22 being brought into contact with each other, and the thickness of the lower float portion 22 is joined to the upper float portion 22. [ (21) and the lower portion is heavier than the upper portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150148107A KR101790317B1 (en) | 2015-10-23 | 2015-10-23 | Free Float Steam Trap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150148107A KR101790317B1 (en) | 2015-10-23 | 2015-10-23 | Free Float Steam Trap |
Publications (2)
Publication Number | Publication Date |
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KR20170047702A KR20170047702A (en) | 2017-05-08 |
KR101790317B1 true KR101790317B1 (en) | 2017-10-25 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020150148107A KR101790317B1 (en) | 2015-10-23 | 2015-10-23 | Free Float Steam Trap |
Country Status (1)
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KR (1) | KR101790317B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020226279A1 (en) * | 2019-05-03 | 2020-11-12 | 주식회사 경동나비엔 | Condensate trap apparatus and buoyant body therefor |
KR102382166B1 (en) | 2020-11-06 | 2022-04-01 | 엄인기 | Drain valve assembly |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102581993B1 (en) * | 2022-07-28 | 2023-09-21 | 주식회사 일성 | Air shut-off device for vacuum strong self-priming pump |
CN116398801B (en) * | 2023-04-24 | 2023-09-15 | 嵊州市亿远科技有限公司 | Two-stage lever steam trap |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007285388A (en) * | 2006-04-14 | 2007-11-01 | Tlv Co Ltd | Steam trap |
JP2008202621A (en) | 2007-02-16 | 2008-09-04 | Tlv Co Ltd | Free float drain trap |
-
2015
- 2015-10-23 KR KR1020150148107A patent/KR101790317B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007285388A (en) * | 2006-04-14 | 2007-11-01 | Tlv Co Ltd | Steam trap |
JP2008202621A (en) | 2007-02-16 | 2008-09-04 | Tlv Co Ltd | Free float drain trap |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020226279A1 (en) * | 2019-05-03 | 2020-11-12 | 주식회사 경동나비엔 | Condensate trap apparatus and buoyant body therefor |
KR102382166B1 (en) | 2020-11-06 | 2022-04-01 | 엄인기 | Drain valve assembly |
Also Published As
Publication number | Publication date |
---|---|
KR20170047702A (en) | 2017-05-08 |
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