KR20020020119A - A device for sealing and cleaning the valve operated manually or automatically mounted gas pipe laying - Google Patents

Abstract

PURPOSE: A device for sealing and cleaning electrically and manually operated valves for a gas pipe is provided to confirm leakage of a gas by filling water between a pair of separated plates which are installed in valves and parallel to each other, and wash and remove impurities adhered to the inside of the valves. CONSTITUTION: In a device for sealing and washing valves(20) which are equipped with a pair of vertically movable separated plates and mounted on certain positions of a gas transferring pipe(10), the device for sealing and cleaning electrically and manually operated valves for a gas pipe comprises a water pipe(81) which receives a certain flow rate of water by operation of a switch valve(85a), and which is connected to a float valve built-in water storage tank(81); a vent pipe(82) having a certain elevation, and a steam pipe(83) having a switch valve(83a), wherein a separator(40) is mounted on a cover(24) of the valves(20) so as to seal or wash the valve(20) by connecting two pipes out of the water pipe, the vent pipe(82) and the steam pipe(83) to a space in the cover(24).

Description

A device for sealing and cleaning the valve operated manually or automatically mounted gas pipe laying}

The present invention relates to a sealing and cleaning device for electric and manual valves for gas piping, and more particularly, filling water between a pair of parallel diaphragms provided inside the valve to check whether the gas leaks. The present invention relates to a sealing and washing device for electric and manual valves for gas piping, which is capable of washing and removing impurities attached to the inside of the valve while preventing gas leakage by the water rod.

In general, a pipe for transferring coke oven gas generated in a steel mill, etc. has a device for blocking the transfer of gas to a predetermined place, and usually, the gas pipe is bent into a U-shape to fill water and insert a blind plate. Or a method using an electric or manual valve is adopted and used.

However, the first method has a problem in that the facility structure is complicated and it takes a lot of time to fill the entire U-shaped trap part and to drain the filled water. Since the part is formed in a flange shape and the blind plate must be directly inserted and removed by such a flange, the worker's work load is increased and the worker is very likely to cause gas poisoning accident. The third method is relatively easier to operate than the former method, but when used for a certain time, a large amount of impurities, such as tar, sulfur, and naphthalene, are attached to the inside, thereby degrading the operability of the valve. It causes the leakage of gas by degrading the opening and closing performance, and the risk of explosion accident is very high. To have.

In addition, the Republic of Korea Utility Model Registration No. 95-21595 disclosed recently has a function that can remove a large amount of impurities, such as tar, sulfur, naphthalene and dust attached to the inside to reduce the operability of the valve, but gas piping There was no way to check whether the electric and manual valves were completely closed, so that the structure was complicated by inserting a separate blind plate to prevent gas leakage.

The present invention has been made to solve such a conventional problem, the object is to fill the water between the parallel pair of diaphragm provided inside the valve to check whether the gas leaks and also the gas leak by such a water rod It is an object of the present invention to provide a sealing and cleaning device for electric and manual valves for gas piping, which is capable of washing and removing impurities attached to the inside of the valve in a state of preventing oil.

1 is an overall configuration diagram showing a gas pipe equipped with electric and manual valves with a sealing and cleaning device according to the present invention;

Figure 2 is a side cross-sectional view of Figure 1;

Figure 3 is an external perspective view showing the separator as a main part of the present invention as a whole;

Figure 4 is an exploded perspective view showing an exploded separator which is the main part of the present invention; to be.

Explanation of symbols on the main parts of the drawings

10: piping 20: valve

22: plate 24: cover

40: separator 42: coupling sphere

43: expansion pipe 44: lower body

44a, 44b, 44c: through hole 46: injection piping

46a: injection nozzle 48: suction pipe

50: rotating body 51, 52: through hole

54: power transmission shaft 60: upper body

60a, 60b, 60c: Through Hole 70: Rotating Handle

72: indicator hand 81: water pipe

82: vent piping 83: steam piping

84: water storage tank 83a, 85a: on-off valve

As a technical configuration for achieving the above object, the present invention is provided with a pair of diaphragm moving in the vertical direction, the device for sealing and cleaning the valve mounted in a predetermined position of the gas transfer pipe, by operating the on-off valve A water pipe having a predetermined flow rate and connected to a water storage tank having a built-in float valve; a vent pipe having a predetermined height; and a steam pipe having an opening / closing valve, wherein the water pipe, the vent pipe, and the steam pipe include: By providing a sealing and cleaning device for electric and manual valves for gas pipes, a separator is mounted on the cover of the valve to connect the dog to the space between the cover of the valve so as to seal or clean the valve. All.

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

1 is an overall configuration diagram showing a gas piping equipped with electric and manual valves with a sealing and cleaning device according to the present invention, and FIG. 2 is a side cross-sectional view of FIG. A manual valve 20 is provided, which has a pair of parallel diaphragms 22 for opening and closing the pipe 10. Of course, the detailed structure for operating the diaphragm 22 has been omitted, but it is configured to open the pipe 10 when the sliding and moving up and down by electric or manual direction and to block the pipe 10 when descending.

The valve 20 has a cover 24 for blocking internal components, including the diaphragm 22, which is adapted to open and close the pipe 10 from the outside, and in a predetermined position on the upper side of the cover 24. 30 is mounted.

The device 30 of the present invention has a separator 40 which penetrates the cover 24 and is coupled to a fitting 26 having a threaded portion.

The separator 40 will be described in more detail with reference to FIGS. 3 and 4, which have a coupler 42 which is coupled to the fitting 26 of the cover 24, the coupler 42 being Comprising a substantially piping shape, it has the expansion pipe part 43 at the edge part.

The lower body 44 is fitted into the expansion pipe 43 of the coupler 42 to be integrally fixed by welding or the like, and the lower body 44 is formed in a container shape so that its center forms an equilateral triangle at the bottom thereof. And three recessed holes 44a, 44b and 44c formed at the same distance from all of these through holes 44a, 44b and 44c. The injection hole 46 is mounted in the through hole 44a. In addition, the injection pipe 46 extends a predetermined length to the inside of the cover 24 through the coupling port 42, the suction pipe 48 mounted on the other through hole 44c is the injection pipe 46 ) In addition, the injection nozzle 46a is mounted inside the injection pipe 46, and the mounting position of the injection nozzle 46a is connected to the through hole 44a and the suction pipe 48 of the lower body 44. Is set to between.

The rotating body 50 is inserted into the lower body 44, and the rotating body 50 has two positions corresponding to the vertices of the equilateral triangle formed by the through holes 44a, 44b and 44c. Through holes 51 and 52 penetrating up and down in the upper and lower projections 53 are formed in the lower center of the projections 53 to be fitted into the grooves 45 of the lower body 44.

Of course, the outer surface of the rotating body 50 and the inner surface of the lower body 44 are each smoothly and precisely processed so that there are almost no gaps in the contact portions of the surfaces so that water or gas does not leak.

In addition, the power transmission shaft 54 is integrally formed in the upper center of the rotating body 50, the power transmission shaft 54 is formed to extend a predetermined length to the top.

The upper body 60 is mounted on the upper portion of the lower body 44, the upper body 60 is formed in the shape of the container upside down and its lower end is flanged to the upper end of the lower body 44 It is fixed.

Of course, the inner surface of the upper body 60 is also smoothly and precisely processed so that there is almost no gap in contact with the outer surface of the rotating body 50 so that water or gas does not leak.

Further, through holes 60a, 60b and 60c are formed in the upper body 60 at positions corresponding to the through holes 44a, 44b and 44c of the lower body 44, A through hole 61 into which the power transmission shaft 54 is fitted is formed.

In addition, a rotary knob 70 having an indicator needle 71 is provided at an end of the rotating body 50 protruding outward through the through hole 61 of the upper body 60. In this case, in order to prevent the rotary knob 70 from rotating relative to the power transmission shaft 54, a hole 72 having a rectangular cross section is formed in the center of the rotary knob 70, and this hole ( An end portion of the power transmission shaft 54 fitted into the 72 is also formed in a rectangular cross section having the same shape and size as the hole 72. Of course, it is preferable to mount the member 74 for preventing the rotation knob 70 from coming out of the power transmission shaft (54).

And, according to the position of the indicator needle 71 should be able to determine from which position the rotating body 50, which is good to mark a predetermined mark on the upper surface of the upper body (60).

1, the upper part corresponding to the through hole 44a of the lower body 44 connected to the injection pipe 46 among the through holes 60a, 60b and 60c of the upper body 60 as shown in FIG. A steam pipe 83 is connected to the through hole 60a of the body 60, and a through hole of the upper body 60 corresponding to the through hole 44c of the lower body 44 connected to the suction pipe 48. The through hole 60b of the upper body 60 is connected to the water pipe 81 and corresponds to the through hole 44b of the lower body 44 connected to the expansion pipe 43 of the coupler 42. Vent pipe 82 is connected to the. In addition, the vent pipe 82 extends a predetermined length to an upper portion thereof and has an end portion bent downward. The water pipe 81 has a water storage tank 84 having a float valve therein. It is connected to to receive the water from the water storage tank (84). In addition, the water storage tank 84 is supplied with water by a separate water pipe 85 having an on / off valve 85a, and the steam pipe 83 also has an on / off valve 83a. Of course, the steam pipe 83 is connected to a steam generating device not shown, and receives steam therefrom.

A method of sealing and cleaning the valve 20 mounted on the pipe 10 using the apparatus of the present invention having the above-described configuration will be described.

In a typical case in which gas is transferred through the pipe 10, that is, when the diaphragm 22 is raised, the through hole of the rotating body 50 is rotated by rotating the rotating handle 70 and rotating the rotating body 50 connected thereto. The positions 51 and 52 are not connected to any of the through holes 44a, 44b and 44c of the lower body 44 and the through holes 60a, 60b and 60c of the upper body 60. In this state, the flow of any fluid through the separator 40 is blocked.

The pipe 10 blocks the transfer of gas through, that is, when the diaphragm 22 descends to the state shown in Figs. 1 and 2, this is a predetermined time such as cleaning the inside of a blower or a collecting tower not shown. The transfer of gas is blocked by the purpose of, at this time, the sealing and cleaning of the valve 20 can be made through the separator 40 of the present invention.

First, in order to seal the valve 20, the rotary knob 70 is rotated so that the through holes 51 and 52 of the rotating body 50 are connected to the through holes 60b and 60c of the upper body 60. When it is made to coincide with the through holes 44b and 44c of the lower body 44, this means that the water pipe 81 is connected to the suction pipe 48, and the vent pipe 82 is connected to the expansion portion of the coupling hole 42 ( 43). This is because the water in the water storage tank 84 is supplied between the diaphragm 22, and thus the space between the diaphragm 22 is filled with water to prevent the gas from leaking. At the same time, the gas existing between the diaphragms 22 flows into the expansion pipe 43 of the coupler 42 and is thus discharged to the outside through the vent pipe 82.

At this time, the height of the vent pipe 82 is set to have a predetermined height in consideration of the gas pressure of the pipe 10 so that the water to the vent pipe 82 after all the gas between the diaphragm 22 is discharged to the outside. When the water is filled to an appropriate height, a float valve embedded in the water storage tank 84 operates to block the supply of water through the water pipe 81. Of course, when water leaks through the valve 20 mounted on the pipe 10, since the water is continuously supplied through the water storage tank 84, the gas of the pipe 10 does not leak to the outside. That is, when the above operation is performed while appropriately adjusting the opening degree of the opening / closing valve 85a provided in the water pipe 82 and replenishing a predetermined amount of water in the water storage tank 84, water leaks from the valve 20. If not, the water is filled up to a predetermined height of the belt pipe 82 and the water storage tank 84 is filled with water up to a predetermined height while the float valve installed in the water storage tank 84 operates to operate the water pipe 82. On the other hand, while the water supply from the valve 20 is kept off, the float valve installed in the water storage tank 84 is continuously opened or the closing and opening are repeated, so that the worker By checking, it is possible to determine whether the valve 20 is leaking.

Next, in order to clean the valve 20, the rotary knob 70 is rotated so that the through holes 51 and 52 of the rotating body 50 are the through holes 60a and 60b of the upper body 60. And the through holes 44a and 44b of the lower body 44, this causes the steam pipe 83 to be injected between the diaphragms 22 through the injection nozzle 46a, and the vent pipe 82 is engaged. It is connected to the expansion pipe 43 of the sphere 42. This is because the hot steam injected between the diaphragm 22 heats the inside of the valve 20 to melt foreign substances such as tar attached to the inside of the valve 20, and after the predetermined time of preheating is performed, the valve ( When the diaphragm 22 of the 20 is opened by a predetermined amount and the diaphragm 22 is not opened smoothly, the opening and closing valve 83a is operated to supply a larger amount of steam to the diaphragm 22. The foreign matter such as tar attached to the inside of the valve 20 is melted, and then the diaphragm 22 of the valve 20 is opened slightly further.

Then, the rotation knob 70 is sequentially rotated so that the through holes 51 and 52 of the rotating body 50 pass through the through holes 60a and 60c of the upper body 60 and the lower body 44. When coinciding with the holes 44a and 44c, the steam pipe 83 is supplied between the diaphragms 22 through the injection nozzle 46a and at the same time water is supplied between the diaphragms 22 through the suction pipe 48. will be. That is, the water supplied through the suction pipe 48 is injected into the valve 20 in a state of being mixed with the high temperature and high pressure steam that is injected from the injection nozzle 46a, such as tar, which is dissolved by the high temperature steam. The foreign matter is separated from the surface of the components inside the valve 20, so that the inside of the valve 20 can be cleaned.

According to the sealing and washing device of the electric and manual valves for gas piping according to the present invention as described above, the path for supplying water and the path and vent path for supplying steam to the interior of the valve, if necessary, Opening the path has the effect of filling the inside of the valve with water or cleaning the inside of the valve.

Claims (2)

In the device for sealing and cleaning the valve 20 which is equipped with a pair of diaphragms 22 moving up and down in a predetermined position of the gas transfer pipe 10, A water pipe 81 connected to a water storage tank 81 having a float valve and receiving a predetermined flow rate of water by operating the on / off valve 85a, a vent pipe 82 having a predetermined height, and an on / off valve ( A steam pipe 83 having a steam pipe 83a, and two of the water pipe 81, the vent pipe 82, and the steam pipe 83 communicate with a space between the cover 24 of the valve 20; And a separator (40) mounted on the cover (24) of the valve (20) to seal or clean the valve (20). 2. The valve according to claim 1, wherein the separator (40) has a through hole (44a) having an injection nozzle (46a) and a through hole (44c) having a suction pipe (48) directed toward the front side of the injection nozzle (46a). The through holes 44b connected to the inside of the valve 20 are equally spaced apart from each other so that the lower body 44 mounted on the cover 24 of the valve 20 and the through holes 44a correspond to the steam pipes ( A through hole 60a, 60b, 60c connected to the vent pipe 82, corresponding to the through hole 45b, and connected to the water pipe 81, corresponding to the through hole 45c0. The upper body 60 mounted on the lower body 44 and the inner body formed on the upper and lower bodies 44 and 60 so as to be rotated by the rotation knob 70 and the upper body when rotating. Two through-holes 51 and 52 for connecting two pairs of through-holes 60a, 60b and 60c of 60 and through-holes 44a, 44b and 44c of lower body 44. Having Sealing and washing device for electric and manual valves for gas piping, characterized in that consisting of a rotating body (50).