KR20200087392A - Venturi Nozzle Handle-Controlled Steam Trap - Google Patents

Abstract

The present invention relates to a venturi nozzle handle-controlled steam trap, and more specifically, to a venturi nozzle handle-controlled steam trap comprising a trap body (20), a foreign substances storage apparatus (30), a nozzle control apparatus (40), and a nozzle handle apparatus (50). When a user gives rotation to a hexagonal wrench shaft (53) integrated with a handle (54), a pressure control flow path (28) formed by the nozzle control apparatus (40) allows a control plug (42) to vertically move up and down along a screw surface placed inside a control nozzle (41) such that a conical unit (16) formed on an end of the control plug (42) opens and closes an inlet (25) placed on a lower side of the control nozzle (41) to increase and decrease the orifice area. Accordingly, a condensate flow rate control and pressure control flow path (28) are formed to have a structure for increasing and decreasing the condensate volume to control the condensate discharge volume, control the discharged pressure, and prevent steam from being discharged. In addition, when a screen net (31) for filtering foreign substances is damaged and torn by an iron unit mixed in the steam pipe or the like and the control nozzle (41) is blocked, the nozzle control apparatus (40) vertically moves upwards as much as possible and opens the control plug (42) to discharge the foreign substances blocking the screen net and thus, has a structure which does not need to replace the nozzle to clean the same.

Description

Venturi Nozzle Handle-Controlled Steam Trap

The present invention relates to a venturi nozzle handle control type steam trap, and more specifically, the trap body 20, foreign material storage device 30, nozzle control device 40, nozzle handle device 50 into four categories Classified;

The pressure regulating flow path 28 formed by the nozzle control device 40, when the user rotates the handle 54 and the hexagonal shaft 53 integral with the control plug 42, the control plug 42 is inside the control nozzle 41. Conical water flow by increasing and decreasing the orifice area by opening and closing the inlet 25 provided at the lower side of the control nozzle 41 while the vertically moving vertically and downwardly along the provided screw surface forms a conical shape 16 formed at the end of the control plug 42. The control and pressure control flow path 28 is formed to be provided in a structure that increases or decreases the amount of condensate, and is provided with a structure for controlling the discharge of condensate, controlling the discharge pressure, and preventing steam discharge;

In addition, the nozzle control device 40, when the screen mesh 31 is broken and torn by iron or the like mixed in the steam pipe, the screen mesh 31, which is a foreign substance strainer, is blocked when the control nozzle 41 is clogged, the control plug 42 It relates to a venturi nozzle handle-controlled steam trap, characterized in that it is provided in a structure that does not require replacement for cleaning of the nozzle by passing the blocked foreign matter through the vertical upward opening.

In steam boilers, production facilities, heat exchangers, steam piping facilities, etc., pipes that transport steam (steam) have a large temperature difference between the inside and outside of the transport pipe due to high temperature and high pressure steam. Condensate is generated in the transport pipe due to the temperature difference.

The condensate must be removed as it is the cause of the water hammer, which causes noise and vibration by striking the pipe while being transported to the steam pipe along with the steam along the steam path, and also reduces the thermal efficiency. To remove condensate, steam traps must be installed on steam traps.

The steam trap discharges the condensate from the steam pipe to the outside, and various techniques such as a disc method, a bimetal method, a bucket method, a ball float method, orifice method are used, and such a steam trap is regarded as a type of valve.

The disc type steam trap is also referred to as a thermal dynamic method, and when the condensate is high in the trap, the internal temperature is lowered by the disc, and when the pressure in the trap decreases, the disc rises and the condensed water by the heat balance is automatically discharged to the outside. Is how it works.

The bimetal type steam trap is a method in which bimetal in the trap uses two types of metals with different thermal expansion coefficients to bend due to temperature changes. When the internal temperature in the steam trap decreases, the bimetal acts to open the valve to discharge condensate. .

Bucket type steam traps are vulnerable in winter, when the trap is full of condensate, the bucket floats and opens the drain valve to drain the condensate.

The ball float steam trap is a method of discharging condensate to the outside using the difference in density between steam and condensate, and is vulnerable to freezing in winter.

The orifice method continuously discharges condensate through a small orifice hole in the nozzle, and the leakage of steam is very small, and it is very simple, so it does not generate noise and vibration, so it has a long service life. Since there is no need, there is a great advantage of economic effect.

In addition, the conventional orifice type steam trap has a problem that the nozzle can be cleaned and replaced only by disassembling the entire steam trap when cleaning or replacing the nozzle due to clogging caused by foreign matter in the nozzle provided therein.

In order to prevent clogging of the resulting nozzle, it has a feature that is not widely used as a problem in that various types of nozzles must be provided.

The present invention has been devised to solve this problem, and the pressure control flow path 28 formed by the nozzle control device 40 of the nozzle provided in the prior art orifice type steam trap is integrated with the handle 54 by the user. When the rotation of the hexagonal stove shaft 53 of the control plug 42 is vertically moved up and down along the screw surface provided inside the control nozzle 41, the cone shape formed at the end of the control plug 42 is 16 The opening and closing of the inlet 25 provided at the lower side of the control nozzle 41 increases and decreases the orifice area to form a condensate flow rate control and pressure control flow path 28, which is provided in a structure to increase and decrease the amount of condensate. Pressure control, steam discharge prevention, and also, the nozzle control device 40, the control screen (41) when the screen mesh (31) is broken and torn by iron or the like mixed in the steam piping, the screen mesh (31) It is an object of the present invention to provide a venturi nozzle handle-controlled steam trap, characterized in that the control plug 42 is provided with a structure that does not require replacement for cleaning of the nozzle by passing the blocked foreign matter through the vertical opening of the control plug 42 as much as possible.

In the venturi nozzle handle-controlled steam trap according to the present invention, the trap body 20 connected to the steam pipe has an octagonal shape with an external “t” shaped cylindrical shape 22 and a “t” shaped end of the body. (21) is provided with a round finish at the corners, and the branch opening (24) on which the screen net (31), which is a foreign material storage cylinder, is mounted, includes a trap body (20) provided as a hollow park cylinder (22) of an inclination angle; A screen net 31, a screen cap 32, a screen cap gasket 33, and a foreign material storage device 30 provided with a plug 34 for removing foreign matter; A nozzle control device 40 provided with a control nozzle 41, a control plug 42, and an anti-loosening dish washer 43; Nozzle control device (50); Nozzle control device (50) with nozzle cap (51), nozzle cap gasket (52), hexagonal wrench shaft (53), handle (54), spring washer (55), and hexagon nut (56) It is characterized in that the flow path is blocked by the nozzle handle device (40) and the discharge amount of condensate is provided to the user.

In the present invention, inside the trap body 20, the first flow passage 27 in which steam and condensate are mixed, and the second flow passage 29 in which condensate is discharged are in an inverted "∩" shape, and the outlet 26 is inclined. It is preferably formed is provided with a pressure control flow path (28) is smoothly operated to control the pressure of condensate discharge.

In the present invention, the pressure control flow path (28) formed by the nozzle control device (40) controls the control plug (42) when the user rotates the handle (54) and the hexagonal shaft (53) integral with the control nozzle (42). The conical shape 16 formed at the end of the control plug 42 while vertically moving up and down along the screw surface provided at the inside of the 41 opens and closes the inlet 25 provided at the lower side of the control nozzle 41 to orifice. It is preferable that the condensate flow rate control and the pressure regulating flow passage 28 are formed by increasing or decreasing the area to be provided with a structure to increase or decrease the amount of condensate.

In the present invention, the nozzle control device 40 controls when the control nozzle 41 is clogged when the screen network 31 is broken and torn by iron or the like mixed in the steam pipe when the screen network 31, which is a foreign substance filtering net, is blocked. It is preferable that the plug 42 is provided in a structure that does not require replacement for cleaning of the nozzle by vertically opening the plug 42 as much as possible to discharge the blocked foreign matter.

In the present invention, the outer side of the control nozzle 41 is provided with a hexagonal shape (13), the inside of the upper side is provided with a tab of the female thread (14), the lower side is provided with an inlet (25) of the orifice hole , It is preferable that the outlet 26 for discharging condensate in the horizontal direction in the middle of the inside is provided, and the outer threaded portion at the bottom of the trap body 20 is provided with a male screw 15.

In the present invention, the upper surface of the control plug (42) is provided with a hexagonal shape (13) of a hexagonal wrench head hole groove in a cylinder, and fitted with a hexagonal shape (13) protruding from the lower end of the hexagonal range (53). Preferably, the middle end is provided with a thread of the male screw 15 continuously provided, and a conical shape 16 formed at the end is provided to perform flow control and opening and closing functions of condensate.

In the present invention, the hexagonal handle shaft 53 of the nozzle handle device 50 is provided with a protruding hexagonal shape 13 at the lower end, and stops when it is vertically raised to the center hole of the nozzle cap 51 to prevent departure. And, the middle is preferably a male screw 15 is provided to fix the handle 54 on the top and the axis of the slide surface is formed.

In the present invention, it is preferable that the anti-loosening dish washer 43 is provided to prevent loosening of the control plug 42 when the user's condensate discharge flow rate is set.

In the present invention, the upper and lower outer circumferential surfaces of the screen cap gasket 33 and the nozzle cap gasket 52 are provided with a plurality of vortex triangular groove-shaped narrations 17 to increase the airtightness of the steam trap and to withstand high temperature and high pressure. It is preferably provided so that.

The venturi nozzle handle-controlled steam trap according to the present invention is a core technology in which the orifice, which is the condensate inlet 25, is opened and crossed by the nozzle control device 40 to achieve condensate to achieve natural discharge even with a small amount of condensate. There is an excellent effect that can minimize heat loss by blocking the steam discharge.

In addition, the nozzle control device 40 when the screen mesh 31 is broken and torn by iron or the like mixed in the steam pipe, the screen mesh 31, which is a foreign substance strainer, is blocked when the control nozzle 41 is clogged, the control plug 42 By opening up vertically as much as possible and passing blocked foreign substances through, there is no need to replace the nozzle for cleaning, which has an excellent effect of maximizing the maintenance and efficiency of the steam trap.

In addition, inside the trap body 20, the first flow path 27 in which steam and condensate are mixed and the second flow path 29 in which condensate is discharged are in an inverted “∩” shape, and the outlet 26 is formed at an inclination angle to pressure. The control flow passage 28 is provided, and the pressure control of the discharge of condensate is smooth, so that the reverse flow of condensate is prevented by the reverse flow of the “∩” shape.

In addition, the nozzle control device 40 of the present invention has an excellent effect by blocking the condensate discharge amount, discharge pressure, and steam discharge by the control nozzle 41 and the control plug 42 so that the user can easily control them.

1 is an isometric cross-sectional view of a use state showing a Venturi nozzle handle-controlled steam trap according to a first embodiment of the present invention.
Figure 2 is an enlarged isometric cross-sectional view of the main portion of the trap body 20 and components of Figure 1 disassembled.
3 is an isometric cross-sectional view showing a state of use and disassembly of the foreign material storage device 30 of FIG.
4 is an enlarged isometric cross-sectional view of a main portion of the nozzle control device 40 according to the second embodiment of the present invention.
5 is an enlarged isometric cross-sectional view of a main portion of the nozzle handle device 50 of the second embodiment according to the present invention.
Figure 6 is an isometric view of the use state showing the outer shape of the trap body (20).
Figure 7 is an isometric view showing the outer shape and use state of Figure 1;

The venturi nozzle handle-controlled steam trap according to the present invention will be described in detail below with reference to the drawings.

In the following description of the present invention, when a detailed description of related configurations may unnecessarily obscure the subject matter of the present invention, the detailed description is omitted.

In addition, terms to be described later are terms set in consideration of the technology in the present invention, which may vary according to the intention of a product producer, so its definition is determined based on the contents specified throughout this specification.

1 shows an isometric cross-sectional view of a use state showing a Venturi nozzle handle-controlled steam trap according to the present invention as a first embodiment,

FIG. 2 is an enlarged isometric cross-sectional view of the main portion of the trap body 20 and components of FIG. 1.

6 is an isometric view of the use state showing the outer shape of the trap body 20,

7 is an isometric view showing the outer shape and use state of FIG.

1 to 2, the first embodiment of the venturi nozzle handle-controlled steam trap according to the present invention is a trap body 20, a foreign material storage device 30, a nozzle control device 40, a nozzle handle device ( 50).

The trap body 20 of FIGS. 6 and 7 is provided with a cylindrical shape 22 having an “t” shaped outer center portion, an inlet and a condensate discharge pipe 12 and a screen cap 32 of the steam pipe 11, and The "t" shaped torso end of the nozzle cap 51 is equipped with an octagonal shape 21 that is convenient for disassembly and assembly of the tool, and is provided with a round finish at the corners, and the screen net 31, which is a foreign substance storage container, is mounted. Mechanism 24 is characterized in that it is provided with a structure that facilitates the removal of foreign substances in the hollow cylinder 22 of the inclination angle.

The trap body 20 of FIG. 6 and FIG. 7 and the lower screen cap 32 and the upper nozzle cap 51, which are fastening parts, are provided by forming round corners in the “hexagonal protruding shape 13”, and are trapped with a spanner tool. It is characterized by quick design and safety in workability from various angles when installing and disassembling and assembling the body and piping.

In the center of the outside of the trap body 20 of FIGS. 6 and 7, 25A, arrow direction, and SWP900 (abbreviation for Steam Working Process 900 Pound) are marked, and at the outer bottom of the branch outlet 24, which is a foreign substance storage container. Engraved characters are equipped with KS (Korea Steam).

The inner threaded portion of the trap body 20 that is fastened to the screen cap 32 and the nozzle cap 51 of FIGS. 1 and 2 is provided with a small pitch on the female screw 14 to increase the sealing pressure.

The inner threaded portion of the trap body 20 fastened to the inlet of the steam pipe 11 and the condensate discharge pipe 12 of FIGS. 1 and 2 is a conventional taper screw (PT, NPT) or according to a user's request of the female thread 14 It is a socket type and can be changed according to user requirements.

The nozzle fixing part 23 of the trap body 20 that is fastened to the control nozzle 41 of FIGS. 1 and 2 is provided as a tab of the female screw 14, so that the nozzle control device 40 is detachable. do.

Inside the trap body 20 of FIGS. 1 and 2, the first flow path 27 in which steam and condensate are mixed and the second flow path 29 in which condensate is discharged are in an inverted “∩” shape and the outlet 26 has an inclination angle It is formed of a pressure control flow path 28 is provided to have a smooth structure to control the pressure of condensate discharge.

The trap body 20 is connected to the condensate discharge pipe 12 on the right side, and is operated in an open state without the condensate discharge pipe 12 in a place with a small amount of condensate.

3 is an isometric cross-sectional view showing a use state and an exploded state of the foreign material storage device 30 of FIG. 1.

The components of the foreign substance storage device 30 shown in FIG. 3 are composed of a screen net 31, a screen cap 32, a screen cap gasket 33, and a plug 34 for removing foreign substances.

The foreign substance storage device 30 is the inlet 25 of the mixed steam and condensate of the trap body 20 is connected to the steam pipe 110, the trap formed in a cylindrical shape in the diagonal direction inside the trunk 20 (24) is provided, the screen net 31 of the filtration net is installed in the center of the branch, and the screen cap 32 and the plug 34 together with the screen cap gasket 33 under the branch 24 are provided in the trap body ( 20) to be mounted and sealed to form the foreign material storage device 30.

The plug 34 of FIG. 3 is provided to facilitate separation of foreign matter by opening it using a spanner tool or the like for maintenance, when the amount of condensate discharge is small due to the full of foreign matter in the foreign matter storage device 30, The plug 34 is equipped with an opening/closing valve according to a buyer's request, so that it can be used for modification.

The screen screen 31, which is a screen for filtering foreign matter in FIG. 3, is made of a stainless material for preventing rust, and the screen screen 31 having a high density (mesh) to prevent foreign matter including fine particles from passing through the nozzle control device 40 is provided. ).

The upper and lower outer circumferential surfaces of the screen cap gasket 33 and the nozzle cap gasket 52 of FIGS. 3 and 5 and the outer circumferential surface of the cylinder formed with the threaded portion of the plug 34 are coated with a silicone sealing agent for high temperature, and the screen cap. (32) and the plug (34) is mounted on the trap body (20) with the maximum torque and is fixed to be mounted and sealed with the maximum torque so as not to leak at high temperatures and high pressures.

The upper and lower outer circumferential surfaces of the screen cap gasket 33 and the nozzle cap gasket 52 of FIGS. 3 and 5 are provided with a plurality of swirl triangular groove-shaped narrations 17 to increase the airtightness of the steam trap and to withstand high temperature and high pressure. It is provided to be.

The outer shapes of the screen cap 32 and the nozzle cap 51 of FIGS. 3, 5, and 7 are provided with a round finish at the corners of the hexagonal shape 13 for easy material supply, and are fastened with the trap body 20 The outer threaded portion is provided with a small pitch on the male screw 15 to increase the sealing pressure of the trap body.

Figure 4 shows an enlarged isometric cross-sectional view of a main portion of the nozzle control device 40 of the second embodiment according to the present invention.

Figure 4 is a nozzle control device 40 of the second embodiment according to the present invention is provided with a control nozzle 41, a control plug 42, an anti-loosening dish washer 43.

The nozzle control device 40 of FIG. 4 is a control plug 42 when the control nozzle 41 is clogged when the screen network 31 is damaged and torn due to iron or the like mixed in the steam pipe. ) It is characterized in that it is equipped with a structure that does not require replacement for cleaning of the nozzle by passing the discharged clogged foreign matter by vertically opening it to the maximum.

The pressure control flow path 28 formed by the nozzle control device 40 of FIG. 4 controls the control plug 42 when the user rotates the handle 54 and the hexagonal shaft 53 integral with the control nozzle 41. Conical shape 16 formed at the end of the control plug 42 while vertically moving up and down along the screw surface provided inside the opening and closing of the inlet 25 provided at the lower side of the control nozzle 41 increases or decreases the orifice area. It is characterized in that it has a structure to increase and decrease the amount of condensate by forming a condensate flow rate control and pressure control flow path 28, and is provided with a structure to prevent condensate discharge, discharge pressure control, and steam discharge.

The outer side of the control nozzle 41 is provided with a hexagonal shape 13, the inside of the upper side is provided with a tab of the female thread 14, and the inside of the lower side is provided with an inlet 25 of an orifice hole, and the inner middle horizontal A discharge port 26 for discharging condensate in the direction is provided, and the outer threaded portion at the bottom of the trap body 20 is formed with a male screw 15.

The upper surface of the control plug (42) is provided with a hexagonal shape (13) of a hexagonal wrench head hole groove in a cylinder, and is fitted with a hexagonal shape (13) protruding at the bottom of the hexagonal shaft (53). The thread of the male thread 15 is continuously provided, and a conical shape 16 formed at the end is provided to perform flow control and opening and closing functions of condensate.

The anti-loosening dish washer 43 serves to prevent loosening of the control plug 42 when the user's condensate discharge flow rate is set.

Since the nozzle control device 40 can be finely adjusted by increasing or decreasing the orifice area of the control nozzle inlet by the user, the discharge and discharge pressure of the condensate can be finely controlled to prevent the discharge of steam due to excessive discharge. Can.

5 is an enlarged isometric cross-sectional view of an enlarged main portion of the nozzle handle device 50 of the second embodiment according to the present invention.

5 is a nozzle handle device 50 of the second embodiment according to the present invention is a nozzle cap 51, a nozzle cap gasket 52, a hexagonal stove shaft 53, a handle 54, a spring washer 55, a hexagon It consists of a nut (56).

The hexagon handle shaft 53 of the nozzle handle device 50 is provided with a protruding hexagonal shape 13 at the bottom, stops when vertically rising into the center hole of the nozzle cap 51 to prevent departure, and stops slide A male screw 15 is provided to form the shaft of the surface and to fix the handle 54 at the top.

The center of the nozzle cap 51 is provided with a hollow hole, the slide contact is made when the hexagonal shaft 53 rises and falls.

On the top of the handle 54, engraved letters are provided with VTG, KS, O, C, open and cross arrow directions.

What has been described above is to present one embodiment for explaining the venturi nozzle handle control type steam trap according to the present invention,

A person having ordinary knowledge in the field to which the present invention pertains may vary variously within the scope of the present invention to the extent possible to practice the requirements of the present invention claimed in the claims.

Claims (5)

The present invention is provided in four categories: trap body (20), foreign substance storage device (30), nozzle control device (40), and nozzle handle device (50);
The center of the trap body 20 has a concentric cylinder 22 in the shape of a “t”, and a branch 24 of an inclined angle at which the screen network 31 is mounted is provided as a hollow cone 22; The left and right ends, and the upper and lower ends where the parts are disassembled and assembled, are formed at the "8-angle protruding shape 21" at the edge of a fine round;
The foreign substance storage device 30 is provided with a screen net 31, a screen cap 32, a screen cap gasket 33, and a plug 34 for removing foreign substances;
The nozzle control device 40 is provided with a control nozzle 41, a control plug 42, and an anti-loosening dish washer 43;
The nozzle handle device 50 is provided with a nozzle cap 51, a nozzle cap gasket 52, a hexagon range 53, a handle 54, a spring washer 55, a hexagon nut 56;, trap body (20) The lower screen cap 32 and the upper nozzle cap 51, which are fastening parts, are provided by forming round corners in the “hexagonal protruding shape 13”, installing a trap body and piping with a spanner tool and disassembling the parts. It is characterized by emphasizing a sense of design and safety with high workability at various angles when assembling;
Inside the trap body 20, the first flow passage 27 in which steam and condensate are mixed and the second flow passage 29 in which condensate is discharged are in an inverted “∩” shape, and the outlet 26 is formed at an inclined angle to control pressure. The flow path 28 is provided, and the pressure control of discharge of condensate is provided in a smooth structure.
The pressure regulating flow path 28 formed by the nozzle control device 40, when the user rotates the handle 54 and the hexagonal shaft 53 integral with the control plug 42, the control plug 42 is inside the control nozzle 41. Conical water flow rate by increasing or decreasing the orifice area by opening and closing the inlet 25 provided at the lower side of the control nozzle 41 while the vertical movement of the control plug 42 along the provided screw surface moves vertically. Venturi nozzle handle-controlled steam trap having a structure in which a regulating and pressure regulating flow passage 28 is formed to increase or decrease the amount of condensate.
According to claim 1,
The outer side of the control nozzle 41 is provided with a hexagonal shape 13, the inside of the upper side is provided with a tab of the female thread 14, and the inside of the lower side is provided with an inlet 25 of an orifice hole, and a horizontal direction in the middle of the inside. Venturi nozzle handle-controlled steam trap, characterized in that the outlet 26 for discharging condensate is provided, and the outer threaded portion of the lower end coupled with the trap body 20 is provided with a male screw 15.
According to claim 1,
The upper surface of the control plug 42 is provided with a hexagonal shape 13 of a hexagonal head hole groove in a cylinder, and is fitted to the hexagonal shape 13 protruding from the lower end of the hexagonal shaft 53, and the middle stop is Venturi nozzle handle-controlled steam traps, which are continuously provided with the threads of the male screw (15) and are provided with a conical shape (16) formed at the end to perform flow control and opening and closing functions of condensate.
According to claim 1,
The hexagonal handle shaft 53 of the nozzle handle device 50 is provided with a hexagonal shape 13 protruding from the bottom, stops when it is vertically raised to the center hole of the nozzle cap 51 to prevent departure, and stops the slide surface Venturi nozzle handle-controlled steam trap, characterized in that the shaft is formed and a male screw (15) is provided to fix the handle (54) at the top.
According to claim 1,
The upper and lower outer circumferential surfaces of the screen cap gasket 33 and the nozzle cap gasket 52 are provided with a plurality of vortex triangular groove-shaped serrations 17 to increase the airtightness of the steam trap and to be able to withstand high temperature and high pressure. Venturi nozzle handle-controlled steam trap.

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