KR20170003253A - Variable nozzle apparatus - Google Patents

Variable nozzle apparatus Download PDF

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Publication number
KR20170003253A
KR20170003253A KR1020150093667A KR20150093667A KR20170003253A KR 20170003253 A KR20170003253 A KR 20170003253A KR 1020150093667 A KR1020150093667 A KR 1020150093667A KR 20150093667 A KR20150093667 A KR 20150093667A KR 20170003253 A KR20170003253 A KR 20170003253A
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KR
South Korea
Prior art keywords
nozzle
injection
fluid
spray
holes
Prior art date
Application number
KR1020150093667A
Other languages
Korean (ko)
Inventor
김수용
Original Assignee
한국전력공사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국전력공사 filed Critical 한국전력공사
Priority to KR1020150093667A priority Critical patent/KR20170003253A/en
Publication of KR20170003253A publication Critical patent/KR20170003253A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays

Abstract

The present invention relates to a variable nozzle apparatus capable of spraying a fluid by selecting any one among a plurality of spray holes formed with different diameters. The variable nozzle apparatus includes a body which is connected to a fluid supply line and has a flow path in which the fluid moves inside, and a spray nozzle which has the plurality of spray holes and sprays the fluid by selectively connecting any one among the plurality of spray holes to the flow path of the body. According to this configuration, the fluid can be sprayed with desired hydraulic pressure by only the simple operation by preparing the spray nozzle with the plurality of spray holes with different diameters.

Description

[0001] VARIABLE NOZZLE APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a variable nozzle device, and more particularly, to a variable nozzle device capable of ejecting a fluid by selecting any one of a plurality of injection holes formed with different diameters.

Generally, a nozzle device is a device for suddenly reducing a cross-sectional area of a fluid flow path and ejecting a fluid, and is provided to perform cooling, cleaning, and the like of a target by jetting a high-pressure fluid.

One of the applications of such a nozzle device is to perform a cleaning operation for removing foreign matters in the insulator part at a certain time period because the insulation performance is deteriorated when foreign matter adheres to the insulator part of the ultra high voltage transmission line. In this case, High-pressure water is sprayed to remove foreign matter.

The transmission line generally has a transmission line for 154 kV and a transmission line for 345 kV, and different nozzles are used depending on the voltage of the transmission line. That is, the cleaning operation is performed by varying the pressure of the fluid sprayed according to the voltage of the transmission line.

1, a conventional high-pressure water injection device includes a body 20 connected to an external fluid supply line 10, and a high- The nozzle unit 30 is provided with a nozzle unit 30 formed to be capable of jetting and the jetting nozzles 40 and 50 are attached to and detached from the nozzle unit 30. In the case of working the 154 kV transmission line, An injection nozzle 40 having a diameter of 1.2 mm is used. When working on a transmission line for 345 kV, a spray nozzle 50 having a diameter of 2.0 mm is used as the injection hole 51.

Therefore, when working in a transmission line having a different voltage, it is necessary to replace the nozzle unit corresponding thereto, so that it takes a long time for replacement and there is a problem that the nozzle unit is lost when the replacement is performed.

An object of the present invention is to provide a variable nozzle device capable of spraying a fluid with a desired oil pressure by simply operating an injection nozzle having injection holes of different diameters .

According to an aspect of the present invention, there is provided a variable nozzle device comprising: a body connected to a fluid supply line and having a flow path for fluid flowing therein; And a spray nozzle having a plurality of spray holes and one of the plurality of spray holes selectively communicating with the flow path of the body to spray the fluid.

The injection nozzle may be rotated to be coupled to the body, and the plurality of injection holes may be arranged so that their centers do not interfere with each other along the circumferential direction of the reference circle.

The body may be formed such that a center of a cross section of a flow passage formed on a side where the injection nozzle is fastened is located on a circumference of a reference circle in which the center of the injection hole is disposed and the diameter of the flow passage is larger than the injection hole .

And a stopper disposed on the body and restricting movement of the injection nozzle when any one of the plurality of injection holes communicates with the flow path of the body.

Wherein the stopper includes: a moving member that is coupled to the body so as to slide; And an elastic member disposed between the body and the movable member and applying an elastic force to move the movable member to a support groove formed in the injection nozzle.

The support groove may be formed on the outer circumferential surface of the injection nozzle so as to be perpendicular to the straight line passing through the center axis of the injection nozzle and the centers of the plurality of injection holes.

The apparatus may further include a blocking support groove formed on an outer circumferential surface of the injection nozzle so as to be perpendicular to a straight line passing through a center axis of the injection nozzle and a center between one of the injection holes and the adjacent injection hole, When the movable member is inserted into the support groove for the fluid passage, the fluid passage may be closed and the fluid may not be injected.

In the injection nozzle, the plurality of injection holes may be formed to have different diameters.

The injection nozzle may further include an elastic pad provided on a surface that is in close contact with the body to prevent a fluid from flowing out to the outside and having a hole corresponding to the injection hole of the injection nozzle.

According to the present invention, there is provided an injection nozzle having a plurality of injection holes having different diameters, so that the fluid can be injected with a desired hydraulic pressure only by a simple operation.

1 is a schematic view of a high-pressure water injection device provided with a conventional nozzle unit,
2 is a perspective view schematically showing a variable nozzle device according to an embodiment of the present invention,
3 is an exploded perspective view schematically showing a variable nozzle device according to an embodiment of the present invention,
4 is a cross-sectional view schematically showing a variable nozzle device according to an embodiment of the present invention,
5 is a front view schematically showing a variable nozzle device according to an embodiment of the present invention.

In order to facilitate understanding of the features of the present invention, a variable nozzle device according to an embodiment of the present invention will be described in detail.

It should be noted that, in order to facilitate understanding of the embodiments described below, reference numerals are added to the constituent elements of each of the accompanying drawings, and the same constituent elements are denoted by the same reference symbols whenever possible . In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, a specific embodiment of the present invention will be described with reference to the accompanying drawings.

2 and 3 are a perspective view and an exploded perspective view schematically showing a variable nozzle apparatus according to an embodiment of the present invention, FIG. 4 is a sectional view schematically showing the variable nozzle apparatus, FIG. 5 is a cross- 1 is a front view schematically showing the device.

2 through 5, the variable nozzle apparatus according to the present invention includes a body 200 having a flow path 230 connected to a fluid supply line 300 and having a fluid flow therein, a plurality of injection holes 120, And a plurality of injection holes (120) formed in the body (200) and selectively communicating with the flow path (230) of the body (200) to inject the fluid.

The body 200 includes a nozzle coupling part 210 formed in a cylindrical shape and protruding to one side and inserted and fastened to the injection nozzle 100 and a fluid coupling part 300 protruding from the other side and fastened to the fluid supply line 300 And a line coupling part 220 for receiving a fluid from the outside.

A fluid passage 230 is formed in the body 200 to communicate fluid between the injection nozzle 100 and the fluid supply line 300. It is preferable that the flow path 230 is formed to be smaller in diameter from the line coupling part 220 side to the nozzle coupling part 210 side.

The injection nozzle 100 includes a nozzle body 110 having an E-shaped cross section, a plurality of injection holes 120 formed to pass through the center frame 111 of the nozzle body 110, The injection nozzle 100 is inserted into the groove 211 formed in the nozzle coupling part 210 of the body 200 to be fastened to the body 200 by expanding inward from the outer frame 112 of the body 200. [ Flange 140 is formed.

A nozzle coupling hole 211 is formed in the nozzle coupling portion 210 of the body 200 so as to be inserted inwardly in correspondence with the shape of the center frame 111 of the nozzle body 110. The nozzle coupling hole 211 The center frame 111 is inserted.

The outer frame 112 of the nozzle body 110 is divided into a plurality of portions, and is formed to have an elastic force. That is, when the injection nozzle 100 is inserted into the body 200, the support flange 140 formed on the outer frame 112 interferes with the nozzle coupling part 210 of the body 200, The support flange 140 is inserted into the groove 211 of the nozzle coupling part 210 so that the injection nozzle 100 is inserted into the body 200).

In addition, the center frame 111 of the nozzle body 110 may be provided with an elastic pad 150 to prevent fluid from flowing out to the outside. The elastic pad 150 is formed to be at least equal to or smaller than the size of the cross section of the center frame 111 and a hole corresponding to the injection hole 120 formed in the center frame 111 is formed. When the fluid moves from the fluid passage 230 of the body 200 to the injection hole 120 of the injection nozzle 100 by the elastic pad 150, the injection nozzle 100 and the body 200 It is possible to prevent the fluid from flowing out to the outside through the gap.

With such a configuration, the injection nozzle 100 can be detached from the body 200, and the injection nozzle 100 can be replaced if necessary.

The injection nozzle 100 is rotated to be coupled to the body 200. Therefore, when the injection nozzle 100 is rotated, any one of the plurality of injection holes 120 formed in the injection nozzle 100 is aligned with the flow path 230 formed in the body 200, .

The stopper 240 prevents the injection nozzle 100 from rotating when the injection hole 120 of the injection nozzle 100 and the center of the flow passage 230 of the body 200 coincide with each other, And may be provided on the body 200.

The stopper 240 is disposed between the body 200 and the moving member 241 and includes a moving member 241 engaged with the body 200 to slide on the body 200, And an elastic member 242 for applying an elastic force to move to the support groove 130 formed in the base 100.

Accordingly, the injection nozzle 100 is rotated so that the injection hole 120 and the flow path 230 are communicated with each other, and the elastic force of the elastic member 242 of the stopper 240 causes the moving member 241 to move, May be moved toward the injection nozzle 100 to be inserted into the support groove 130 of the injection nozzle 100 so as to prevent the injection nozzle 100 from rotating.

5, a plurality of injection holes 120 of the injection nozzle 100 are provided, and a plurality of the injection holes 120 are arranged such that the centers thereof do not interfere with each other along the circumferential direction of the reference circle C do.

The flow path 230 of the body 200 is formed so that the center of a cross section of the flow path 230 formed on the side where the injection nozzle 100 is fastened is connected to the center of the reference circle C in which the center of the injection hole 120 is disposed And the diameter of the flow passage 230 is larger than the diameter of the injection hole 120. [

The support groove 130 of the injection nozzle 100 may be formed to be perpendicular to the central axis of the injection nozzle 100 and the straight line passing through the centers of the plurality of injection holes 120, As shown in FIG. The support groove 130 may further be formed on an outer circumferential surface of the injection nozzle 100 so as to be perpendicular to a straight line passing through the center between the central axis of the injection nozzle 100 and the plurality of injection holes 120 .

For example, when the number of the injection holes 120 is two, the first injection holes 121 and the second injection holes 122 are arranged at the circumference of the reference circle C at an angle of 180 ° . The support groove 130 includes a first support groove 131 formed on the first injection hole 121 side and a second support groove 132 formed on the second injection hole 122 side, . A blocking support groove 133 may further be formed between the first injection hole 121 and the second injection hole 122. That is, the blocking support groove 133 is disposed at an angle of 90 ° with respect to the first support groove 131 and the second support groove 132.

In this configuration, when the moving member 241 of the stopper 240 is inserted into the first support groove 131 by rotating the injection nozzle 100, the first injection hole 121 is formed in the body 200, And the second injection hole 122 is formed in the body 200 when the moving member 241 of the stopper 240 is inserted into the second support groove 132. [ The flow channel 230 of the body 200 is closed when the moving member 241 of the stopper 240 is inserted into the blocking support groove 133 The fluid is not sprayed.

Here, the plurality of injection holes 120 of the injection nozzle 100 are formed to have different diameters. For example, the diameter of the first injection hole 121 may be 2.0 mm, and the diameter of the second injection hole 122 may be 1.2 mm. Needless to say, the number and diameter of the injection holes 120 are not limited thereto, and the injection nozzle 100 may be manufactured in accordance with the user's needs and used.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

100: injection nozzle 110: nozzle body
120: jet hole 130: support groove
150: elastic pad 200: body
210: nozzle fastening part 211: nozzle fastening hole
220: line fastening part 230:
240: stopper 241: movable member
242: elastic member 300: fluid supply line

Claims (9)

A body connected to the fluid supply line and having a flow path through which fluid flows; And
A spray nozzle having a plurality of spray holes and one of the plurality of spray holes selectively communicating with a flow path of the body to spray a fluid;
Wherein the nozzle unit comprises:
The method according to claim 1,
The spray nozzle
And the plurality of injection holes are arranged so that the centers thereof do not interfere with each other along the circumferential direction of the reference circle.
3. The method of claim 2,
The body,
Wherein a center of a cross section of a flow passage formed on a side where the injection nozzle is fastened is located on a circumference of a reference circle in which the center of the injection hole is disposed and the diameter of the flow passage is larger than the injection hole.
The method according to claim 1,
A stopper disposed in the body and restricting movement of the injection nozzle when any one of the plurality of injection holes communicates with the flow path of the body;
Further comprising: a nozzle for supplying air to said nozzle.
5. The method of claim 4,
The stopper
A moving member coupled to the body so as to slide; And
An elastic member disposed between the body and the movable member and applying an elastic force to move the movable member to a support groove formed in the injection nozzle;
And wherein the variable nozzle device comprises:
6. The method of claim 5,
The support groove
Wherein a plurality of nozzles are formed on the outer circumferential surface of the injection nozzle so as to be perpendicular to a straight line passing through the center axis of the injection nozzle and the centers of the plurality of injection holes.
The method according to claim 6,
And a blocking support groove formed on an outer circumferential surface of the injection nozzle so as to be perpendicular to a straight line passing through a center axis of the injection nozzle and a center between one of the injection holes and the adjacent injection hole,
Wherein when the movable member is inserted into the blocking support groove, the flow passage is closed and the fluid is not sprayed.
The method according to claim 1,
The spray nozzle
Wherein the plurality of injection holes are formed to have different diameters.
The method according to claim 1,
The spray nozzle
An elastic pad provided on a surface of the body that is in close contact with the body to prevent a fluid from flowing out to the outside and having a hole corresponding to the injection hole of the injection nozzle;
Further comprising: a nozzle for supplying air to said nozzle.

KR1020150093667A 2015-06-30 2015-06-30 Variable nozzle apparatus KR20170003253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150093667A KR20170003253A (en) 2015-06-30 2015-06-30 Variable nozzle apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150093667A KR20170003253A (en) 2015-06-30 2015-06-30 Variable nozzle apparatus

Publications (1)

Publication Number Publication Date
KR20170003253A true KR20170003253A (en) 2017-01-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150093667A KR20170003253A (en) 2015-06-30 2015-06-30 Variable nozzle apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220161862A (en) * 2021-05-31 2022-12-07 인하대학교 산학협력단 External mixing type two fluid nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220161862A (en) * 2021-05-31 2022-12-07 인하대학교 산학협력단 External mixing type two fluid nozzle

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