KR200481165Y1

KR200481165Y1 - Float type steam trap

Info

Publication number: KR200481165Y1
Application number: KR2020150006538U
Authority: KR
Inventors: 백창기
Original assignee: 티에스케이 주식회사
Priority date: 2015-10-05
Filing date: 2015-10-05
Publication date: 2016-08-29

Abstract

The present invention relates to a steam trap, and more particularly, to a steam trap which includes a watertightly coupled cover having a space formed therein, and an inlet port through which steam is introduced into the space and an outlet through which condensed water is discharged, A body including a plate; A valve unit provided on the main plate for controlling opening and closing of the discharge port; And a protection means coupled to the main plate and configured at a corresponding position of the inlet so that the water hammer of the condensed water during the inflow of the steam and the condensed water through the inlet causes a blow to the sub- Which is advantageous in improving the durability of the steam trap by preventing the deformation of the steam trap.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a steam trap,

The present invention relates to a steam trap, and more particularly, to a steam trap which controls the valve portion by the movement of the valve to prevent discharge of steam while discharging only condensed water, To a steam trap to which a bulb protection means adapted to prevent being applied to an internal apparatus is applied.

Steam traps are generally used in heat exchangers and are a kind of automatic valve-like device designed to efficiently remove condensate generated by the condensation of steam in a drum or pipe and to prevent the leakage of 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.

In this method, the orifice of the gate is opened and closed by using a valve plug operated like a bell by moving the bell according to the level of the condensed water. In this method, since the bellows is moved according to the level of the condensed water, There is an advantage that the discharge amount is small.

However, in the case of the method using the ball, when the impact caused by the water hammer of the condensed water is applied to the ball, deformation of the ball, such as distortion of the ball, occurs, which causes loss of buoyancy of the ball, There is a problem.

Korean Patent No. 10-0635332

Accordingly, the present invention has been made to solve the above problems of the conventional art, and it is an object of the present invention to provide a steam trap which prevents steam from being blown and damaged by water hammer of condensed water during the inflow of steam and condensed water, It is an object of the present invention to provide a steam trap to which a buoy protection means is applied to improve the durability of the trap.

In order to solve the above-described problems, the steam trap to which the present invention is applied includes a watertight cover to which a space is formed, and an inlet and a condenser, which are disposed toward the cover, A main body including a main plate on which a discharge port for discharging is formed; A valve unit provided on the main plate for controlling opening and closing of the discharge port; And a protection unit coupled to the main plate and configured at a corresponding position of the inflow port.

The valve unit may include a bimetal fixed to the main plate. An operating piece hinged to the support plate fixed to the main plate through a hinge shaft and connected to the bimetal by an arm; A buoy formed at one end of the operating piece; And a ball valve which is disposed at the other end of the operation piece and rotates in both directions with respect to the hinge axis so that the operation piece opens and closes the discharge port.

For example, the operating piece is provided in a shape of a letter "A" connected to a lateral piece and a vertical piece, and the ball valve is fixed to the vertical piece and is oriented perpendicularly to the vertical piece.

Meanwhile, the protection means may include a circular protective plate spaced apart from the corresponding position of the inlet port. And an extension plate extending from both sides of the protection plate and fixed to the main plate, wherein the protection plate has a diameter equal to or larger than the diameter of the inlet.

As described above, the steam trap to which the buoy protection means according to the present invention is applied is provided with a protection means at a corresponding position of the inlet port, so that steam and condensed water flowing through the inlet port are blown to the buoy due to the water hammer of the condensed water So that the durability of the steam trap can be improved by preventing the outer shape from being deformed.

1 is a front view showing a steam trap according to the present invention;
2 is an exploded view of Fig.
3 is a cross-sectional view showing a valve portion which is a constitution of the present invention;
FIG. 4 is an exploded perspective view showing a steam trap according to the present invention; FIG.
5 is a view showing a protection means which is a constitution of the present invention;

In describing the present invention, the terms or words used in the present specification and claims are to be construed in accordance with the spirit of the present invention, on the basis that the inventor can properly define the concept of a term in order to best illustrate its own design It should be construed as meaning and concept consistent with the technical idea of.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a front view showing a steam trap according to the present invention, Fig. 2 is an exploded view of Fig. 1, and Fig. 3 is a sectional view showing a valve part constituting one embodiment of the present invention. 4 is a cutaway perspective view showing a steam trap according to the present invention, and Fig. 5 is a view showing a protection means which is a constitution of the present invention.

The present invention controls the valve unit 200 by the movement of the inlet port 230 so as to prevent condensed water from being discharged while discharging only condensed water. The present invention relates to a steam trap to which a water hammer is applied to prevent the steam trap from being hurt and broken, thereby improving the durability of the steam trap. Hereinafter, referring to FIGS. 1 and 2, A preferred embodiment of the steam trap according to the present invention will be described.

The steam trap to which the present invention is applied includes a main body 100, a valve unit 200, and a protection means 300.

The main body 100 includes a cover 110 and a main plate 120. The cover 110 has a space 112 formed therein and the main plate 120 is formed with a through- .

The main plate 120 is disposed toward the cover 110 and discharges condensed water collected in an inlet 130 and a space 112 for introducing steam (steam) and condensed water into the space 112, An outlet 140 is formed (see Fig. 4).

As shown in the cutaway perspective view of FIG. 4, the main body 100 has an inlet pipe 131 and a discharge pipe 141. Steam and condensed water flowing through the inlet pipe 131 are connected to the inlet 130 And the condensed water discharged to the discharge port 140 is discharged through the discharge pipe 141 to the outside.

The valve unit 200 is formed in the main plate 120 and controls the opening and closing of the discharge port 140 so that air and gas existing in the space part 112 when the steam is initially introduced into the space part 112 When the temperature of the space portion 112 rises due to the high temperature steam, the discharge of the steam is blocked. When the condensed water is accumulated in the space portion 112, only the condensed water is discharged The valve unit 200 will be described in detail later.

The protection means 300 is coupled to the main plate 120 and is configured at a corresponding position of the inlet 130 so that when the steam and condensed water enter the space 112, ) Of the steam trap is prevented from being damaged and thereby the durability of the steam trap is improved.

5, the protection unit 300 includes a protection plate 310 and an extension plate 320. The protection plate 300 is fixed to the main plate 120 as shown in FIG.

Hereinafter, the protection means 300, which is a constitution of the present invention, will be described in more detail with reference to FIG.

The shield plate 310 is provided in a circular shape as shown in the drawing, and is spaced apart from the corresponding position of the inlet 130.

The extension plate 320 extends from both sides of the protection plate 310 and is fixed to the main plate 120 so that the protection plate 310 can be fixed in a state separated from the inlet 130 .

Hereinafter, a preferred embodiment of the valve unit 200, which is a constitution of the present invention with reference to FIGS. 2 to 3, will be described in more detail.

The valve unit 200 includes a bimetal 210, an actuating piece 220, a bore 230, and a ball valve 226.

The bimetal 210 is formed by superimposing two types of thin metals having different degrees of expansion and contraction according to a change in the thermal expansion coefficient, that is, a temperature. When the temperature is increased, the larger the thermal expansion coefficient is, Properties.

In this case, the bimetal 210 according to the present embodiment is fixed to the main plate 120. When the temperature of the bimetal 210 increases due to high temperature steam and condensed water introduced into the discharge port 140, 210 are bent downward in the drawing (FIG. 2).

2, the operation piece 220 is hinged to a supporter 224 fixed to the main plate 120 through a hinge shaft 225, and the arm 223 is hinged to the bimetal 210, As shown in FIG.

The valve 230 is formed at one end of the actuating piece 220 so that the valve 230 rises while the water level of the condensed water rises on the space portion 112.

The ball valve 226 is formed at the other end of the actuating piece 220. When the actuating piece 220 is rotated counterclockwise with respect to the hinge axis 225 on the basis of FIG. 4, The valve 226 closes the discharge port 140 and the ball valve 226 opens the discharge port 140 when the operation piece 220 rotates in the clockwise direction with respect to the hinge shaft 225 .

In this case, the operating piece 220 is provided in a shape of 'C' connecting the lateral piece 221 and the vertical piece 222, and the ball valve 226 is fixed to the vertical piece 222, So that the ball valve 226 and the discharge port 140 can be more firmly opened and closed as the operating piece 220 rotates.

When the bimetal 210 is bent toward the discharge port 140 due to the above-described structure, the operation piece 220 is pushed by the arm 223 as shown in FIG. 3, The valve 220 is rotated in the counterclockwise direction with respect to the hinge shaft 225 so that the ball valve 226 blocks the discharge port 140 to prevent the steam from leaking to the discharge port 140.

When the water level rises and the condensed water rises in the space 112, the operation unit 220 is rotated in a clockwise direction and the ball valve 230 226 can discharge the condensed water to the discharge port 140 by opening the discharge port 140. At this time, if the condensed water is discharged and the water level is lowered, And the discharge port 140 is closed through the ball valve 226, so that the discharge of steam can be blocked.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Accordingly, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be determined by the claims.

100: main body 110: cover
200: valve part 210: bimetal
220: Operational Manual 230: Subsection
300: Protection means 310: Shield plate
320: Extension plate

Claims

A main body including a watertightly coupled cover having a space formed therein and a main plate disposed toward the cover and having an inlet through which steam enters into the space and an outlet through which condensed water is discharged; A valve unit provided on the main plate for controlling opening and closing of the discharge port; And protective means coupled to the main plate and configured at a corresponding position of the inlet port,
A bimetal fixed to the main plate; An operating piece hinged to the support plate fixed to the main plate through a hinge shaft and connected to the bimetal by an arm; A buoy formed at one end of the operating piece; And a ball valve which is provided at the other end of the operation member and opens and closes the discharge port while the operation member is rotated in both directions with respect to the hinge axis,
The protective means being spaced apart from a corresponding position of the inlet port and preventing a blow to the valve by a water hammer when steam and condensed water are introduced through the inlet port; And an extension plate extending from both sides of the protection plate and fixed to the main plate, wherein the protection plate has a diameter equal to or larger than the diameter of the inlet, traps.

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The method according to claim 1,
The operating piece is provided in an "?&Quot; shape in which a lateral piece and a longitudinal piece are connected,
Wherein the ball valve is fixed to the vertical piece, and is configured to face a vertical direction to the vertical piece.

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