KR20170038212A - Ball Valve with Jetting Device - Google Patents

Ball Valve with Jetting Device Download PDF

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Publication number
KR20170038212A
KR20170038212A KR1020150137235A KR20150137235A KR20170038212A KR 20170038212 A KR20170038212 A KR 20170038212A KR 1020150137235 A KR1020150137235 A KR 1020150137235A KR 20150137235 A KR20150137235 A KR 20150137235A KR 20170038212 A KR20170038212 A KR 20170038212A
Authority
KR
South Korea
Prior art keywords
valve
valve body
ball
nozzle
injection
Prior art date
Application number
KR1020150137235A
Other languages
Korean (ko)
Inventor
황인순
Original Assignee
대우조선해양 주식회사
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 대우조선해양 주식회사 filed Critical 대우조선해양 주식회사
Priority to KR1020150137235A priority Critical patent/KR20170038212A/en
Publication of KR20170038212A publication Critical patent/KR20170038212A/en

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Classifications

    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • 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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details

Abstract

The present invention relates to a ball valve, in which a ball valve installed at the same place as an offshore plant construction is required to clean the inside of the valve periodically or whenever necessary, because foreign substances are deposited inside the valve body due to the use environment. So it takes a lot of maintenance time. According to an aspect of the present invention, there is provided an internal combustion engine comprising: an injection passage communicating with upper and lower internal spaces in a valve body; a fuel injection valve installed in the injection passage; a high pressure fluid injected from an external high- The discharge passage is formed in the lower internal space of the valve body so as to be discharged downward, so that the valve is not disassembled and assembled for cleaning the valve, and the valve can be quickly cleaned.

Description

[0001] Ball Valve with Jetting Device [0002]

The present invention relates to a ball valve, and more particularly, to a ball valve equipped with a high-pressure injector capable of removing sand and mud, which have large particles accumulated inside a ball valve device, without disassembling the valve.

Generally, a ball valve is installed in a chamber that communicates with two or more flow paths in order to open and close a flow path, and the ball operates to selectively open and close the flow path by rotation of the ball.

1 is a schematic sectional view of a general ball valve.

1, a ball 10 having a spherical surface formed with a central through hole 10a and a seat retainer 20 having an integrally formed seat ring 20a for sealing and contacting the ball 10 A valve body 30 in which the ball 10 is rotatably installed in the inner chamber, a closure 40 coupled to the left and right sides of the valve body 30 to form a flow path, A stem 50 fixed to the valve body 30 to support the rotation of the stem 50 and connected to an upper portion of the valve body 30, A rotary shaft 70 installed to support the rotation of the ball at a lower portion of the ball 10 and a rotary shaft 70 fixed to the valve body 30, And a rotary shaft supporting portion 80 for supporting the rotation of the rotary shaft.

In the ball valve thus configured, the flow path of the closure 40 coincides with the center pipe through-hole 10a of the ball 10, and the valve 10 is brought into the valve-opened state. By rotating the ball 10 through the stem 50, To open and close the ball valve.

As described above, the ball 10 is rotated inside the valve body 30 to open and close the flow passage. Depending on the use environment of the valve, foreign matter such as clay may flow into the valve body 30 during the operation period . If foreign substances are introduced and accumulated in this way, it will cause valve failure. Therefore, the valve is usually disassembled periodically and cleaned and reassembled.

However, in order to disassemble and assemble the valve, the valve can be disassembled only after stopping the apparatus provided with the valve and shutting off the flow path from the front and rear of the valve. Therefore, in order to clean the inside of the valve body, the flow path must be shut off or the facility must be shut down. Therefore, there is a problem in that the productivity is deteriorated due to the operation stoppage of the valve equipped with the valve. .

On the other hand, as a prior art, Japanese Utility Model JP2509790 discloses a structure for removing deposits deposited on a gap between a seat retainer and a ball in a ball valve.

The prior art is a structure that penetrates the valve body and the seat retainer and injects fluid between the seat ring and the ball to clean the valve body. That is, the prior art is a structure for cleaning by injecting a fluid between the seat ring and the ball at both side flow path sides of the valve.

However, in the ball valve, the foreign matter may flow into the space between the upper stem coupling portion of the ball and the valve body, and between the lower rotation shaft coupling portion of the ball and the valve body.

However, the prior art can not clean the foreign substances deposited in the space formed between the valve body and the upper and lower sides of the ball. Therefore, even if a foreign substance removing structure such as the prior art is provided, there is a problem that the valve must be disassembled, cleaned, and reassembled periodically.

Japanese Utility Model Registration Bulletin No. 2509790 (June, 1996)

The present invention relates to a ball valve equipped with a high-pressure injection device capable of cleaning a foreign matter accumulated inside a ball valve device installed in a high vibration, high corrosion, high pressure, high temperature, sand and mud environment like an offshore plant construction, .

In the ball valve according to the present invention,

A seat retainer having a seat ring for sealing between the ball and the valve body is provided between the ball and the valve body, A ball valve for opening and closing a flow path by rotating a ball through a stem, wherein a stem for rotating the ball is coupled to an upper side of the ball, and a rotation axis for supporting the rotation of the ball is provided at a lower side of the ball,

An injection passage communicating with the upper internal space of the valve body through which the ball and the stem are coupled through the valve body to inject high-pressure fluid from the outside of the valve into the upper internal space;

A high pressure injector for injecting a high pressure fluid for cleaning the inside of the valve through the injection passage;

A nozzle device connected to the injection path and injecting a high-pressure fluid injected into the valve body upper internal space;

 And a discharge passage communicating with the lower internal space of the valve body through which the ball and the rotary shaft are coupled through the valve body and discharging the fluid injected through the injection passage to the outside of the valve.

The present invention is characterized in that a plurality of injection passages are formed, each of which is provided with a nozzle device.

A nozzle device installed in the injection passage,

A nozzle body having a hollow round shape and provided with a plurality of nozzles forward,

A nozzle tube extending to the rear of the nozzle body and inserted into the injection passage and drawn out to the outside of the valve body;

And a fastening adapter which is screwed to the tip of the nozzle tube drawn out to the outside of the valve body, fastening and fixing the nozzle device in the valve body, and a shutoff valve for opening and closing the nozzle device is installed and connected to the rear by a high pressure spraying device and a connection hose .

In addition, an O-ring for sealing between the nozzle body and the valve body is inserted into the recessed portion formed in the inner surface of the valve body, and a plurality of O-ring grooves are formed in the recessed portion, And a washer and an O-ring are inserted between the outer side surfaces of the valve body.

The discharge passage is connected to a discharge pipe, and the discharge pipe is provided with a shutoff valve.

According to the present invention, an injection passage is formed in an upper internal space of a valve body to inject a high-pressure fluid for cleaning from a high-pressure injector, and a discharge passage is formed in a lower internal space of the valve body to discharge the injected fluid and foreign substances. It is possible to clean the inside of the valve without disassembling the valve. In addition, the present invention can improve cleaning efficiency by forming a plurality of injection passages and injecting a high-pressure fluid from the respective directions into the interior. Further, in the present invention, a nozzle device may be installed in each injection passage, and a high-pressure fluid may be dispersed by the nozzle device so as to be dispersed into each of the internal parts. Accordingly, the present invention is capable of cleaning internal foreign matters without disassembling the valve, shortening the maintenance time, facilitating the workability, and shortening the valve operation stop time, thereby improving the productivity.

1 is a schematic cross-sectional view showing the configuration of a conventional ball valve.
2 is a schematic cross-sectional view showing the configuration of a ball valve equipped with a high-pressure injection device according to the present invention;
FIG. 3 is a schematic sectional view showing another embodiment of a ball valve equipped with a high-pressure injection device according to the present invention. FIG.
Fig. 4 illustrates an example of the installation of the injection passage and the nozzle device according to the present invention. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic sectional view of a ball valve having a high-pressure injection device according to the present invention, and FIG. 3 is a schematic sectional view of a ball valve having a high-pressure injection device according to the present invention.

In the ball valve according to the present invention,

A ball 10 having a through hole 10a formed therein is rotatably installed in a valve body 30 and a ball 10 is rotatably mounted on the ball 10, A seat retainer 20 having a seat ring 20a for sealing is provided between the valve body 30 and the valve body 30. A stem 50 for rotating the ball 10 is coupled to the upper side of the ball 10 And a rotating shaft 70 for supporting the rotation of the ball 10 is provided under the ball 10 so as to open and close the flow path by rotating the ball 10 through the stem 50.

The ball valve according to the present invention is characterized in that the upper internal space 101 of the valve body 30 through which the ball 10 and the stem 50 are coupled through the valve body 30, 10) and a rotary shaft (70) for supporting the rotation of the ball (10) are connected to the lower internal space (102) of the valve body (30) to inject high pressure fluid from the outside of the valve A passage 110;

A high pressure injection device 130 for injecting a high pressure fluid for cleaning the inside of the valve through the injection path 110;

A nozzle device 140 for injecting high-pressure fluid connected to the injection passage 110 in the upper inner space 101 and the lower inner space 102 of the valve body 30;

And a shutoff valve 121 communicating with the lower internal space 102 of the valve body 30 through the valve body 30 and discharging the fluid injected through the injection path 110 to the outside of the valve And a discharge passage (120).

The present invention configured as above is suitable for installation in a high vibration, high corrosion, high pressure, high temperature, sand and mud environment during operation period like a ball valve installed in an offshore plant construction. In order to remove sand and mud with large particles accumulated in the offshore plant construction, the ball valve is disassembled, cleaned and reassembled according to regular maintenance and schedule. In order to perform such maintenance, the use of the valve is interrupted, so that the operation of the valve equipped with the valve is interrupted. Since the valve must be cleaned by disassembling and assembling, there is a disadvantage that it takes a long time.

Accordingly, the present invention provides a nozzle device 140 for injecting a fluid to be injected by forming an injection passage 110 communicating with the upper and lower inner spaces 101 and 102 of the valve body 30, 102 to form a discharge passage 120 communicating with the lower portion of the valve.

2, when the injection passage 110 and the nozzle unit 140 are provided so as to communicate with the upper internal space 101 of the valve body 30, the upper internal space 101 Since the fluid injected into the upper inner space 101 flows down and the sediments are removed in the lower inner space 102, the sediment can be removed from the lower inner space 102, May not be easy to remove.

3, the injection passage 110 and the nozzle unit 140 are installed in both the upper inner space 101 and the lower inner space 102 and are supplied from the high pressure injector 130 The high-pressure fluid is injected into the inner space to effectively remove the accumulated foreign matter.

A plurality of injection passages 110 are formed in the upper inner space 101 and the lower inner space 102 of the valve body 30 and are respectively provided with nozzle devices 140.

This is because, when one injection path 110 and the nozzle device 140 are installed, the direction in which the injection nozzle 140 is installed can easily remove the foreign matter deposited by the injection of the high-pressure fluid, Removal of foreign matter may not be easy. Accordingly, the plurality of injection passages 110 are formed and the nozzle devices 140 are coupled to each other, so that the fluid is sprayed in all directions in the internal space of the valve body 30, thereby effectively removing foreign matter .

In the case where the injection passage is formed only in the upper side internal space 10 and the nozzle device is provided and the injection passage and the injection nozzle are provided in both the upper and lower internal spaces 101 and 102, In the case where sediment foreign matter that can be cleaned by simply injecting fluid is generated, it is possible to install and operate a valve provided with an injection passage and a nozzle device only in the upper internal space 101, In the case where it is used in an environment in which sedimentation foreign matter can not be easily removed merely by discharging it, a valve having an injection path and a nozzle device may be installed in both the upper and lower inner spaces 101 and 102 to be able to stand out. Similarly, the case where only one injection passage and the nozzle device are provided and the case where a plurality of injection passages and a plurality of nozzle devices are provided can be selectively configured according to the use environment.

Meanwhile, the nozzle device 140 may be configured to be capable of jetting using a known rotary nozzle, and a nozzle having a simple jet hole may be used. The jet direction and the range may be effectively cleaned by the configuration of the nozzle Can be configured.

4 is a view illustrating an injection path and a nozzle device according to the present invention.

The nozzle device 140 installed in the injection path 110 may include:

A nozzle body 142 having a hollow round shape and provided with a plurality of nozzles 143 forwardly,

A nozzle tube 141 formed to extend rearward of the nozzle body 142 and inserted into the injection passage 110 and drawn out to the outside of the valve body 30;

A shutoff valve 111 which is screwed to the tip of the nozzle tube 140 drawn out of the valve body 30 to fasten and fix the nozzle unit 140 in the valve body 30 and to open and close the nozzle unit 140, And a fastening adapter 150 connected to the rear of the high pressure injection device 130 and the connection hose 131.

The nozzle device 140 may be configured such that the nozzle tube 141 of the nozzle device 140 installed inside the valve body 30 is drawn out to the outside of the valve body 30 to be fastened to the tip of the nozzle tube 141 The adapter (150) is provided with a shutoff valve (111), so that high pressure fluid can be injected only during internal cleaning for maintenance of the valve. That is, normally, the shutoff valve 111 is shut off and the valve is operated. If necessary, the connecting hose of the high-pressure spraying device 130 is connected to the fastening hole injector 150 and the shutoff valve 111 is opened, So as to perform internal cleaning. A shutoff valve 121 is also provided in the discharge pipe 122 connected to the discharge passage 102 communicated with the lower internal space 102 of the valve body 30 so as to maintain the shutoff state. It is possible to open only the case of internal cleaning to discharge the fluid injected for cleaning to the outside of the valve and sediment foreign matter mixed therewith.

A plurality of O-ring grooves 30a are formed on the inner surface of the valve body 30 to receive the nozzle body 142 and the nozzle body 142 and the valve body 30, And a washer 152 and an O-ring 151 are inserted between the coupling adapter 150 and the outer surface of the valve body 30. The O- That is, when the nozzle device 140 is installed in the injection path 110, a plurality of O-rings for sealing are installed and sealed.

10: Ball 10a: Through hole
20: Seat retainer 20a: Seat ring
30: valve body 30a: O-ring groove
40: Closure 50: Stem
60: stem support portion 70:
80: rotating shaft supporting portion 110: injection passage
111: shut-off valve 120: exhaust passage
130: High pressure injection device 131: Connection hose
140: nozzle device 141: nozzle tube
142: nozzle body 143: nozzle
145, 151: O-ring 150: Fastening adapter
152: Washer

Claims (5)

A ball valve for opening and closing a flow path by rotating a ball (10) through a stem (50) coupled to the ball (10) by a ball (10)
An injection passage 110 communicating with the upper internal space 101 of the valve body 30 through which the ball 10 and the stem 50 are connected through the valve body 30;
A high pressure injection device 130 for injecting a high pressure fluid for cleaning the inside of the valve through the injection path 110;
A nozzle device 140 connected to the injection path 110 in the internal space of the valve body 30 to inject high-pressure fluid to be injected;
A shutoff valve 121 communicating with the lower internal space 102 of the valve body 30 through the valve body 30 and discharging the fluid injected through the nozzle unit 140 to the outside of the valve And a discharge passage (120).
The high-pressure injector according to claim 1,
Further comprising a nozzle device (140) connected to the injection passage (110) and the injection passage (102) in the lower internal space (102) of the valve body (30).
The ball valve as claimed in claim 1 or 2, wherein the ball valve equipped with the high-
Wherein a plurality of injection passages (110) are formed at different positions, and a nozzle device (140) is installed in each injection path (110).
The injection apparatus according to claim 1 or 2, wherein the nozzle device (140) installed in the injection path (110)
A nozzle body 142 having a hollow round shape and provided with a plurality of nozzles 143 forwardly,
A nozzle tube 141 formed to extend rearward of the nozzle body 142 and inserted into the injection passage 110 and drawn out to the outside of the valve body 30;
A shutoff valve 111 which is screwed to the tip of the nozzle tube 140 drawn out of the valve body 30 to fasten and fix the nozzle unit 140 in the valve body 30 and to open and close the nozzle unit 140, And a connection adapter (150) connected to the rear of the high pressure injection device (130) by a connection hose (131).
5. The ball valve according to claim 4, wherein the ball valve equipped with the high-
A plurality of O-ring grooves 30a are formed in an inner surface of the valve body 30 to receive the nozzle body 142 and a plurality of O-ring grooves 30a are formed in the recessed groove to define a gap between the nozzle body 142 and the valve body 30. [ And a washer 152 and an O-ring 151 are inserted between the coupling adapter 150 and the outer surface of the valve body 30. The O- Ball valve fitted.
KR1020150137235A 2015-09-30 2015-09-30 Ball Valve with Jetting Device KR20170038212A (en)

Priority Applications (1)

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KR1020150137235A KR20170038212A (en) 2015-09-30 2015-09-30 Ball Valve with Jetting Device

Applications Claiming Priority (1)

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KR1020150137235A KR20170038212A (en) 2015-09-30 2015-09-30 Ball Valve with Jetting Device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107178644A (en) * 2017-07-11 2017-09-19 四川苏克流体控制设备有限公司 Full coated tape purging anti-lock wear resistance ball valve
WO2018231934A1 (en) 2017-06-13 2018-12-20 Mogas Industries, Inc. Vortex flush ball valve and method
KR102053611B1 (en) * 2018-07-31 2019-12-09 동명대학교산학협력단 Washable ball valve with status measurement
CN114110204A (en) * 2021-12-01 2022-03-01 浙江中控技术股份有限公司 Control valve
US20220212237A1 (en) * 2021-01-04 2022-07-07 Saudi Arabian Oil Company Simultaneously unblocking multiple valve fittings

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2509790Y2 (en) 1990-02-05 1996-09-04 株式会社キッツ Ball valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2509790Y2 (en) 1990-02-05 1996-09-04 株式会社キッツ Ball valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018231934A1 (en) 2017-06-13 2018-12-20 Mogas Industries, Inc. Vortex flush ball valve and method
EP3638934A4 (en) * 2017-06-13 2021-03-17 Mogas Industries, Inc. Vortex flush ball valve and method
CN107178644A (en) * 2017-07-11 2017-09-19 四川苏克流体控制设备有限公司 Full coated tape purging anti-lock wear resistance ball valve
KR102053611B1 (en) * 2018-07-31 2019-12-09 동명대학교산학협력단 Washable ball valve with status measurement
US20220212237A1 (en) * 2021-01-04 2022-07-07 Saudi Arabian Oil Company Simultaneously unblocking multiple valve fittings
US11839908B2 (en) * 2021-01-04 2023-12-12 Saudi Arabian Oil Company Simultaneously unblocking multiple valve fittings
CN114110204A (en) * 2021-12-01 2022-03-01 浙江中控技术股份有限公司 Control valve

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