KR101969981B1 - Butterfly valve with means to identify and control position of disk - Google Patents

Abstract

The present invention relates to a butterfly valve having a disk position check and control function, capable of minimizing a risk to a worker when the worker is checking an opening degree. The present invention comprises: a valve body (100) including a valve flange (110) protruding from a side; a valve shaft (200) installed by having a part penetrating the valve flange (110) to be rotatable; a valve disk (300) axially combined with the valve shaft (200); a speed reducer (400) embedded to enable a part of the valve shaft (200) to be rotated by penetrating a speed reducer flange (410); an opening guide bar (500) fixed by penetrating the valve shaft (200) exposed in an operation space (S) between the valve flange (110) and the speed reducer flange (410); an open side stopper (600) leading the valve shaft (200) to stop rotating in an opening direction; and a closing side stopper (700) leading the valve shaft (200) to stop rotation in a closing direction.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a butterfly valve having a disk position confirmation and control function,

The present invention can confirm whether or not the valve disk is opened on the ground through application of a simple physical structure to the butterfly valve, so that the installation cost can be reduced and the opening can be checked through the physical operating structure, It can be used smoothly without any possibility of failure even in a very humid environmental structure due to the nature of the underground environment, and it is possible to check the opening on the ground, so as to minimize the environment exposed to dangerous situations To a butterfly valve.

Generally, a butterfly valve is installed on a passage through which a fluid, for example, water, oil or gas flows, and is used to open or close the flow of the fluid, and has a feature of occupying a smaller installation space than other valves.

Butterfly valves with these characteristics are classified as horizontal type and vertical type.

The horizontal butterfly valve provides a benefit of preventing the valve disc from sagging by the left and right bearings of the valve body because the valve disc rotates about a horizontal axis to the valve body to open and close the flow path.

The vertical butterfly valve has a structure in which the valve disc and the valve shaft are vertically coupled to each other. Since the bearing coupled to the upper and lower ends of the valve shaft of the valve only acts as a center, It is also possible to install in one space.

On the other hand, in order to confirm whether or not the butterfly valve embedded in the ground is opened, the manager removes the ground manhole communicating with the butterfly valve buried in the ground and directly descends to the ground to see whether the valve disk of the butterfly valve is opened or closed .

However, not only toxic gas exists around the butterfly valve buried in the ground, but also the amount of oxygen in the air in the manhole is also extremely low, often causing safety accidents.

Especially, in the case of Hwaseong City, Gyeonggi Province, an accident that a worker who went down to work underground to test operation of a water supply valve of an apartment complex was suffocated (Internet news reference: https: //www.sedaily.com/NewsView/1S205X6FGJ) , And the oxygen content in the manhole at this time was only 10%. In addition, where a large butterfly valve is used, the operator must ascend directly to the large butterfly valve to visually confirm the risk of a fall accident. Therefore, in the ground where various valves are buried, it is necessary to pay much attention during work.

In consideration of these circumstances, butterfly valves among the butterfly valves buried in the ground can be confirmed without checking the operator to ascertain whether the butterfly valves are open or not.

1 is a perspective view showing a butterfly valve provided with an opening check function.

As shown in the figure, the configuration of the butterfly valve provided with the opening check function includes an operation handle 1 for rotating the valve for opening and closing the valve, A connecting shaft 5 for transmitting rotational force from the speed reducer 2 to the valve disc 6 and a connecting shaft 5 for transmitting the rotational force from the speed reducer 2 to the valve disc 6, A valve disc 6 for opening and closing the valve by being rotated by a rotational force transmitted from the valve disc 5, a valve body 4 for installing the valve disc 6, A magnetic sensor 8 for sensing the magnetic force generated from the permanent magnet 7 and a magnetic sensor 8 connected to the magnetic sensor 8 to open and close the valve disc 6 To the indicator 3 for displaying the information consist of.

The operating relationship of the butterfly valve provided with the opening check function constituted as described above is as follows.

First, when the user rotates the manipulating handle 1, the rotational power is transmitted by the speed reducer 2 in the opposite direction and is transmitted to the valve disc 6 by the connecting shaft 5, Thereby opening and closing the valve.

When the valve disc 6 rotates and the valve is closed, the permanent magnet 7 installed on the valve disc 6 is positioned at the shortest distance from the magnetic sensor 8, so that the magnetic sensor 8 is positioned at the shortest distance from the permanent magnet 7 The indicator lamp 3 is turned on by sensing the magnetic force.

When the valve disc 6 rotates to open the valve, the permanent magnet 7 installed on the valve disc 6 is located at the longest distance from the magnetic sensor 8, As the magnetic force can not be detected, the indicator 3 is turned off.

As a result, the butterfly valve equipped with the opening check function can check the opening of the valve disk provided on the butterfly valve on the ground without the worker moving down to the ground. Therefore, And the like.

In spite of this advantage, the butterfly valve provided with the conventional opening check function detects the magnetism through the magnetic sensor and guides the lamp through the lighting of the lamp. Therefore, the butterfly valve requires a large installation cost, And the lamp is connected to the electric circuit so that the magnetic sensor and the lamp are electrically connected to each other. Therefore, due to the environmental characteristic of the underground environment where the butterfly valve is buried, .

Also, the butterfly valve is often used as a valve for regulating the amount of water because the opening and closing of the disc valve is easily controlled through the speed reducer 2.

For example, the butterfly valve used in the first stage of water treatment is used frequently in a specific interval (10% ~ 25% control) to regulate the flow of raw water, so that the component constituting the speed reducer 2 Partial wear of worm gears and worm gears is severe, requiring frequent repair or replacement.

At this time, in the butterfly valve having the conventional opening check function, the valve disk can not be fixed or controlled arbitrarily.

Accordingly, for repairing or maintenance of the speed reducer, the valve disk for opening and closing the flow path of the valve body must be fixed in a closed state.

Therefore, in the butterfly valve provided with the conventional opening check function, the pair of fixing bars are brought into contact with both sides of the valve disc in a state where the valve disc is closed in the flow path of the valve body, There is a problem that it takes a lot of time.

In particular, in the case of a vertical butterfly valve, the lower shaft of the disk is directed toward the ground, which makes the work more difficult.

KR 10-2010-0057335 A

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a butterfly valve having a butterfly valve having a disk position check and control function, To provide a fly valve.

Another object of the present invention is to provide a butterfly valve having a disk position checking and controlling function for easily fixing a valve disk for closing a flow path of a valve body through a screw connection when repairing or maintenance of the reducer.

In order to accomplish the present invention, the butterfly valve having the disk position checking and controlling function of the present invention is embedded in the ground of the side where the manhole is installed, and is provided with a flow path and a valve flange protruded on one side A valve body; A valve shaft horizontally installed on an upper portion of the valve body, the valve shaft being partially rotatably installed in the valve flange; A valve disc axially coupled to the valve shaft by opening and closing a flow path of the valve body; And a flange for a reduction gear disposed at a position facing the flange for the valve is provided at one side of the flange for the valve, and an operating space is formed between the valve flange and the flange for the reduction gear, A speed reducer in which a part of the valve shaft is rotatably housed through the operating space through the flange for the speed reducer; An opening or detachment guide which is disposed in an operating space between the valve flange and the reduction gear flange and is exposed to the outside and is fixed to the valve shaft exposed through an operating space between the valve flange and the reduction gear flange; Wherein the valve disc is rotatably mounted on the flange for the valve or when the valve disc is rotated to open the flow path of the valve body, An opening-side stopper for guiding the opening-side stopper; Wherein the valve shaft is installed in the valve flange or the flange for the reduction gear, and when the valve disc is rotated to close the flow path of the valve body, the valve guide fixed to the valve shaft is hooked, And a closing-side stopper for guiding the closing-side stopper.

Wherein the open stopper is configured to move in a direction in which the open / close stopper is brought into contact with the opening / non-contacting guide band in a released direction, And a side gap adjusting member.

Side stopper is moved in a direction in which the contact of the opening / non-contacting guide bar in contact with the closing-side stopper is canceled, and the closing stopper is closed so as to adjustably guide the contact- And a side gap adjusting member.

The butterfly valve having the disk position checking and controlling function of the present invention is characterized in that the opening / closing guide is provided on the valve flange or the flange for the speed reducer at a predetermined interval between the opening side stopper and the closing side stopper, And a maintenance fixing portion for guiding the fixing flange to be fixed to the flange for the speed reducer.

Wherein the maintenance fixing portion includes: a fixed relay hole formed through the opening / Wherein the opening / closing guide member is formed at a predetermined interval in the valve flange or the reduction gear flange, wherein the opening / detaining guide shaft axially coupled to the valve shaft is formed at a corresponding position of the fixed relay hole when rotating, Fixation holes; And a maintenance fixing member which is spirally coupled to the fixing hole via a fixed relay hole of the opening / closing guide.

In the butterfly valve having the disk position checking and control function of the present invention, it is possible to more easily identify the opening / closing guide bar located in the operating space between the valve flange and the flange for the reduction gear, And an identification reinforcing member for guiding the identification reinforcing member.

The identification reinforcing member is applied to at least one of the opening / closing guide, the open side stopper, and the closing side stopper, with either one of a luminous material, a fluorescent material and a phosphorescent material.

The present invention can confirm whether or not the valve disk is opened on the ground through application of a simple physical structure to the butterfly valve, so that the installation cost can be reduced and the opening can be checked through the physical operating structure, Due to the nature of the underground environment, it can be used smoothly without any possibility of failure even in a very humid environmental structure, and it is possible to check the opening on the ground, thereby minimizing the environment exposed to dangerous situations for operator confirmation.

Further, in the repair or maintenance work of the speed reducer of the butterfly valve, the valve disk which closes the flow path of the valve body is easily fixed by screwing, thereby reducing the work process time.

1 is a perspective view showing a butterfly valve having a general opening check function;
2 is a cross-sectional view of a butterfly valve having disk position checking and control functions of the present invention.
3 is a perspective view of a butterfly valve having disk position checking and control functions of the present invention.
4 is a schematic view showing a butterfly valve having a disk position checking and controlling function according to the present invention.
FIG. 5 is a longitudinal sectional view showing a substantial part of a butterfly valve having a disk position checking and controlling function according to the present invention. FIG.
FIG. 6 is a cross-sectional view showing a butterfly valve having a disc positioning and control function according to another embodiment of the present invention as a vertical butterfly valve. FIG.
FIG. 7 is a diagram illustrating a process of confirming whether a valve disk is opened through a manhole-facing space in a ground where a butterfly valve having a disk position checking and controlling function according to the present invention is embedded in the ground.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which: It is to be understood that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention

In the drawings, the elements are expressed in an exaggerated form or a simplified form in consideration of the convenience of understanding, etc. However, the scope of protection of the present invention should not be construed to be limited, and the same function The same reference numerals will be used whenever possible.

In addition, the terms used in the present invention are used only to illustrate the embodiments below, and are not intended to limit the present invention, but the singular expressions include plural expressions unless the context clearly indicates otherwise.

As shown in the figure, the butterfly valve having the disk position checking and control function of the present invention includes a valve body 100, a valve shaft 200, a valve disk 300, a speed reducer 400, an opening / An open-side stopper 600, and a closed-side stopper 700.

First, the valve body 100 is a tubular body embedded in the ground on the side where the manhole M is installed, the both sides of which are open, and a valve flange 110 protrudes on one side.

The valve shaft 200 is fixedly connected to the upper portion of the valve body 100 by means of axial coupling of a valve disc 300 to be described later so that the flow path of the valve body 100 is connected to a valve The valve shaft 200 has a structure in which a part of the valve shaft 200 is rotatably passed through the valve flange 110 and is exposed to the outside as a member that transmits rotational force when the disk 300 is opened or closed through rotation of the disk 300.

The valve disc 300 has a structure that opens and closes the flow path of the valve body 100 and is axially coupled to the valve shaft 200.

The speed reducer 400 is provided at one side with a reducer flange 410 disposed at a position facing the valve flange 110 and has a working space S between the valve flange 110 and the reducer flange 410, The valve body 100 is provided with an operating space S that is located at a position where the manhole M is removed and recognizable on the ground, Is a member that rotatably and guided partly through a portion of the reduction gear flange 410 through the operating space S,

The fixing connecting rods 120 are inserted between the valve flange 110 and the speed reducer flange 410 so as to form the working space S and the flange 110 for the valve and the flange 410 for the speed reducer And are fixedly connected along the edges.

The opening / closing guide 500 is disposed in an operating space S between the valve flange 110 and the speed reducer flange 410 and is exposed to the outside. The valve flange 110 and the speed reducer flange 410 And is fixed to the valve shaft 200 exposed through the working space S between the valve shaft 200 and the valve shaft 200. [

Here, the fixing between the opening guide 500 and the valve shaft 200 is such that fixing grooves are formed on the opening guide 500 and the valve shaft 200, respectively, and the opening / And the key 520 is fixed to the groove between the valve shafts 200.

The open side stopper 600 is installed on the valve flange 110 or the flange 410 for the speed reducer so that when the valve disc 300 rotates to open the flow path of the valve body 100, The guide shaft 500 is engaged to guide the valve shaft 200 so that the valve shaft 200 is no longer rotated in the opening direction.

On the other hand, the open stoppers 600 are moved in the direction in which the open / close stoppers 600 in contact with the open / close guide 500 are released, and the open stopper 600 and the open / Side gap regulating member 610 that adjustably guides the contact releasing gap between the first and second openings.

Here, the opening-side gap regulating member 610 is threaded on the outer peripheral surface to guide the open-side stopper 600 to adjust the contact-releasing gap through a screw connection.

Further, in the embodiment of the present invention, the open-side stopper 600 is described as being installed in the valve flange 110.

The stopper 700 is installed in the valve flange 110 or the flange 410 for the speed reducer so that when the valve disc 300 is rotated to close the flow path of the valve body 100, The guide shaft 500 is engaged to guide the valve shaft 200 so that the valve shaft 200 is no longer rotated in the closing direction.

The closing stopper 700 is also moved in the direction in which the opening / closing guide 500 is brought into contact with the closing stopper 700 so as to be released from the closing stopper 700 and the opening stopper 700 Side gap regulating member 710 that adjustably guides the contact releasing gap between the first and second openings.

Here, the closed-side gap regulating member 710 is threaded on the outer circumferential surface to guide the contact-releasing gap through the screw connection to the closing-side stopper 700.

In the embodiment of the present invention, the closing stopper 700 is provided in the valve flange 110.

On the other hand, the open side gap regulating member 610 and the closed side gap regulating member 710 of the present invention may be capable of manually rotating the reducer or the like on the valve disc upon replacement or repair.

That is, due to the high frequency of use of the speed reducer 400 in a specific section (10% to 25% inclination adjustment) to regulate the flow of raw water, the worn vane gear or the internal component of the reducer 400, When the worm gear is replaced, the opening / closing guide 500 is brought into contact with the opening stopper 600 or the closing stopper 700 so that the opening / Side gap adjusting member 610 or the closing-side gap adjusting member 710 provided in the opened-side stopper 600 or the closing-side stopper 700, (500) is moved to a fixed hole (111) of a desired one of fixing holes (111) forming a maintenance fixing part, which will be described later, at a desired position (partial opening position).

In addition, in the butterfly valve having the disk position checking and controlling function of the present invention, when the opening side gap adjusting member 610 or the closing side gap adjusting member 710 is moved to the desired position by spiraling, For maintenance, the valve disc 300, which closes the flow path of the valve body 100, should be fixed in a closed state.

To this end, the opening / closing guide 500 is fixed to the valve flange 110 at predetermined intervals between the open-side stopper 600 provided on the valve flange 110 and the closed-side stopper 700 A maintenance fixing part is provided.

The detailed configuration of the maintenance fixing part provided is such that the fixed relay hole 510 formed through the opening guide 500 and the flange 110 for the valve are formed to pass through the valve shaft 200 (Not shown) is formed at a corresponding position of the fixed relay hole 510 when the opening / closing guide 500 is rotatably coupled to the fixed contact hole 500 and the fixed contact hole 500, And a maintenance fixing member 800 spirally coupled to the fixing hole 111 via the relay hole 510.

Accordingly, it is possible to easily fix the valve disk, which closes the flow path of the valve body, through screw connection when repairing or maintenance of the speed reducer of the butterfly valve of the present invention, Maintenance is possible, which not only provides safety but also shortens work process time.

In the foregoing, the butterfly valve having the disk position check and control function of the present invention has been described with the horizontal butterfly valve as the main body.

Therefore, the butterfly valve having the disk position checking and controlling function of the present invention can be applied to the vertical butterfly valve in the same configuration and operation, and the same reference numerals will be applied to clarify the present invention .

6, a vertical type butterfly valve is vertically coupled to a valve shaft 200 coupled to a valve disc 300 of a valve body 100, and vertically coupled to a vertically coupled valve shaft 200 A valve flange 110 and a speed reducer flange 410 of the speed reducer 400 are disposed and a working space S is formed between the valve flange 110 and the speed reducer flange 410 , The opening / non-returning guide 500 axially coupled to the valve shaft 200 is horizontally rotated to horizontally guide the opening / closing of the valve disc 300.

The process of confirming whether or not the operator opens the valve disk through the manhole cover space on the ground where the butterfly valve (exemplified as a horizontal type) having the disk position checking and controlling function of the present invention having the above-described configuration is embedded 7 will be mainly described as follows.

In order to confirm whether the valve disk 300, which is used to open or close the flow path of the valve body 100 on the ground where the butterfly valve having the disk position checking and control function of the present invention is embedded, is open or closed, It is only necessary to confirm whether the opening / closing guide 500 is in an open position or a closed position with the naked eye through the manhole cover space A in a state in which the guide hole 500 is removed.

As a result, when the valve disc is opened due to the unauthorized operation of the conventional valve disc, or when the valve disc is opened in a slightly opened state, the air is rapidly discharged to the air chamber as well as the leakage water. Can be prevented.

On the other hand, since the opening check means provided in the butterfly valve is located in the ground, it is easy to identify during the day when the sunlight is irradiated, but may be difficult to identify on a cloudy day or nighttime when weather conditions are poor.

In the butterfly valve having the disk position checking and controlling function of the present invention, the opening / closing guide 500 located in the working space S between the valve flange 110 and the gear reducer flange 410 is inserted into the manhole M) is removed from the ground, the identification reinforcing member is further provided.

As described above, the identification reinforcing member may be formed of any one of a luminous material, a fluorescent material, and a phosphorescent material 530, 620, and 720 that emits fluorescent light at night and in a dark place by absorbing natural light, 600 and the closing-side stopper 700, as shown in Fig.

Meanwhile, in the present invention, phosphorescent materials (530, 620, 720) among luminous materials, fluorescent materials and phosphorescent materials (530, 620, 720) applied to the identification reinforcing member are preferably applied.

That is, the phosphorescent material (530, 620, 720) absorbs and scatters the energy source of natural light and artificial light used in everyday life such as the sun, mercury lamp, fluorescent lamp and incandescent lamp, and emits fluorescence light in a dark place. This is because the brightness and light emission time is long and durability is strong, so absorption and emission of light are continuous.

More specifically, the phosphorescent materials 530, 620, and 720 absorb and accumulate light such as sunlight and phosphors, and it is possible to gradually emit and emit light in night or in a dark place without limitation.

Further, the phosphorescent materials 530, 620, and 720 do not include cadmium, lead, mercury, arsenic, chromium, and radioactive materials at all and are harmless to the human body.

100: valve body 110: flange for valve
111: Fixing ball 120: Fixing connecting rod
200: valve shaft 300: valve disc
400: Reducer 410: Reducer flange
500: Whether or not to open 510: Fixed relay
520: keys 530, 620, 720: phosphorescent material
600: opening side stopper 610: opening side gap adjusting member
700: a closing side stopper 710: a closing side gap adjusting member
800: Fixing member for maintenance M: Manhole
S: Working space

Claims (7)

A valve body 100 in which a flow path is formed and a flange 110 for a valve is protruded on one side;
A valve stem 200 horizontally installed on the valve body 100 and partially rotatably installed in the valve flange 110;
A valve disc (300) axially coupled to the valve stem (200) by opening / closing a flow path of the valve body (100);
A flange 410 for a speed reducer disposed at a position facing the valve flange 110 is provided at one side so that an operating space S is formed between the flange 110 for the valve and the flange 410 for the speed reducer. A part of the valve shaft 200 which is exposed through the valve flange 110 of the valve body 100 passes through the operating flange 410 through the operating space S, A speed reducer 400 incorporated therein;
The valve operating flange 110 is disposed in the operating space S between the valve flange 110 and the speed reducer flange 410 and is exposed to the outside. (500) which is fixed to the valve shaft (200) through the valve shaft (200) exposed to the valve seat (S);
The valve disc 300 is installed in the valve flange 110 or the speed reducer flange 410 and is fixed to the valve shaft 200 when the valve disc 300 is rotated to open the flow path of the valve body 100. [ An open side stopper 600 for guiding the valve shaft 200 so that the guide shaft 500 is not rotated any more in the opening direction;
The valve disc 300 is fixed to the valve shaft 200 when the valve disc 300 is rotated and the flow path of the valve body 100 is closed by being installed in the valve flange 110 or the reduction gear flange 410. [ Side stopper 700 for guiding the valve shaft 200 so that the valve shaft 200 is no longer rotated in the closing direction;
The opening and closing guide 500 is provided at a predetermined interval between the open side stopper 600 provided on the valve flange 110 or the reduction gear flange 410 and the closing side stopper 700 110) or a fixed portion for guiding the fixed gear to the reduction gear flange (410).
The method according to claim 1,
The open stopper 600 is moved in a direction in which the opening / closing stopper 600 contacting the opening / non-contacting guide bar 500 is released, and the open stoppers 600, And an open side gap regulating member (610) for adjustably guiding a contact release gap between the base (500) and the base (500).
The method according to claim 1,
Side stopper 700 is moved in a direction in which the contact of the opening / detaching guide 500 in contact with the closing-side stopper 700 is released, and the closing-side stopper 700, which is released from contact, And a closing side gap regulating member (710) for adjustably guiding a contact releasing gap between the base (500) and the back side gap regulating member (710).
delete The method according to claim 1,
The maintenance fixing portion includes:
A fixed relay hole (510) formed through the opening / detaching guide (500);
Wherein the opening / closing guide 500 is formed to pass through the valve flange 110 or the speed reducer flange 410 at predetermined intervals, and the opening / Fixing holes (111) formed at corresponding positions of the inner wall surface (510) and having screw grooves formed on the inner peripheral surface thereof;
And a maintenance fixing member (800) spirally coupled to the fixing hole (111) via a fixing relay hole (510) of the opening / Having a butterfly valve.
The method according to claim 1,
The opening and closing guide 500 located in the operating space S between the valve flange 110 and the decelerator flange 410 can be more easily identified on the ground where the manhole M is removed And a discriminating member for guiding the discrimination member to guide the discrimination member.
The method according to claim 6,
The identification reinforcing member may include at least one of a luminous material, a fluorescent material, and a phosphorescent material (530, 620, 720) disposed on at least one of the opening guide 500, the open stopper 600 and the closing stopper 700 Wherein the butterfly valve has a disk positioning and control function.

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