KR100311235B1 - Compressed air sealing and connecting device of valve - Google Patents

Abstract

The present invention relates to a sealing and connecting device (39) suitable for the connection of the valve 28 used to send the compressed air discharged from the storage tank 20 to the discharge pipe 34 of the dust collector bag house (39), A socket-to-tube connection with a first sealing material 48 which seals between the socket 46 and the tube 34, and formed on either of the socket or tube and the partition 36 of the bag house 39. The socket-tube portion of the device 39, including a second seal 42, which seals between the holes 44, is provided on either or both of the outlet side and the inlet side, thereby providing a number of valves typical of the precipitator. Sealing and connecting device for easy assembly into the bag house (39).

Description

Compressed air tightness and connecting device of valve

The present invention relates to a valve, in particular to a connection of the valve. More particularly, the present invention relates to a connecting device used to connect the valve to the compressed air supply unit and the induction unit side, and includes a sealing member formed of an elastic material and an inlet side and an outlet side duct so that the valve is connected to the duct. A connecting device comprising a means for coupling to a.

In particular, the presently well known field of application relates to a right-angle flow path diaphragm valve used in a valve of a reverse flow or reverse injection pellicle dust collector, in which the present invention is a right angle to the valve, ie the compressed air inlet side duct. A connecting or coupling device for connecting a connection between the two ducts to send the compressed air to the second duct is required for connecting to the second duct disposed in the.

The present invention is more widely used for 180 ° flow path valves and pistons than for the diaphragm type. The application of the present invention is shown in FIGS. 10 and 11 as an example for a particular dust collector and the details of these figures are described later.

In the dust collector, the conventional connecting device is provided with a connecting portion formed while the screw is inclined on the valve inlet side, and is provided with a cover type tightening nut fastener.

However, in the case of using the valve having a threaded inlet, first, in order to align the alignment of each member, first, if the screw is not tightened sufficiently, a pressure leakage occurs. There was a problem.

In addition, problems similar to those related to the alignment of the valve may be identified in FIGS. 10 and 12. However, FIG. 10 illustrates the use of the conventional dresser fastener shown in FIG. 12. When using a dresser type fastener, there is a problem in that the adjustment or accommodation width of a variable that may occur in manufacturing is larger than when a screw connector is used, and the fasteners are expensive.

Accordingly, the present invention provides a valve having a connecting device, the connecting device including a sealing member made of an elastic material that makes the connection or coupling with the duct more economical and simpler, thereby improving the problem of the conventional device. Has its purpose.

The present invention for achieving the above object, the first embodiment consists of a sealing and connecting device of the compressed air for connecting the valve provided with the inlet and outlet, the inlet is a compressed air main through the inlet pipe It is connected to the storage tank, the outlet portion is connected to the compressed air induction duct inserted into the chamber vertically through the hole in the chamber wall, while sealing between the outlet and the induction pipe of the valve including a socket and tube member And a second sealing means including a first sealing means and a sealing material having an annular and axially extending shape to seal the socket and the tube member in the gap hole of the chamber. Is deformed and has a rim for pressing the circumferential wall of the hole, the rim for which the outer periphery of the socket The inclined, radially and axially spreading lip portion of the lip portion is constructed to move axially on either member of the socket or tube to seal between the hole and the socket. The second embodiment of the present invention is composed of a valve having a compressed air flow path means, the compressed air flow path means of which the end of the flow path in a socket having a sealing material for the tube-socket gap, and the sealing material is a long hole. And a tip end portion of the cylindrical duct having an open tip in this hole is separably fitted, and a first sealing means is detachably fitted to an outer circumferential surface of the open tip of the duct so that the pipe and the socket are in axial relative motion. The first sealing means comprises a nose portion extending axially and radially from the open tip portion, the nose portion having an outwardly curved surface, the surface extending in the longitudinal direction. The inner wall of the hole abuts.

The third embodiment of the present invention consists of a valve having an outlet portion in which the passage ends in a socket having a long hole, in which the cylindrical pipe is fitted, while sealing a gap between the cylindrical pipe and the hole. It is provided with a sealing device for the tube-socket clearance, which comprises an elastic sealing material having an elongated tubular part, in which the tubular part fits on one end of the cylindrical pipe, and the valve is coupled to the flange It has a structure having an inlet portion including a ring.

1 is a cross-sectional view of a compressed air tightness and connecting device according to a first embodiment of the present invention for use in a diaphragm right angle valve.

Figure 2 is a cross-sectional view similar to Figure 1 showing a second embodiment of a connecting device according to the invention.

3 is a cross-sectional view of a partition sealing material which forms a part of the present invention.

4 is a cross-sectional view of the connecting device in a state in which the partition sealant shown in FIG. 3 seals a gap between the partition walls.

Figure 5 is a cross-sectional view of the elastic sealing material for the discharge pipe-socket gap forming part of the connecting device of the present invention.

FIG. 6 is a partial detail view of a seal for a discharge tube-socket gap that compensates for this variation even if a change occurs in the axial position during assembly or use of the present invention; FIG.

FIG. 7 is a view similar to FIG. 6, illustrating a state of accepting an inconsistency in angle; FIG.

8 is a cross-sectional view of a socket adapter with a screw formed at the tip as a second embodiment of the component of the present invention shown in FIGS. 1,2,6 and 7;

9 is a cross-sectional view of a socket-socket adapter, which is a second embodiment of the component of the invention shown in FIGS.

Figure 10 is a cross-sectional view of a conventional baghouse filter device shown to illustrate the scope of use of the present invention.

FIG. 11 is a plan view of the baghouse filter device shown to show how the connection device of the present invention is installed in relation to FIG.

12 is a cross-sectional view of a conventional connecting means that can be replaced with the connecting device of the present invention.

* Explanation of symbols for main parts of the drawings

20: main pipe 22: hole

24: inlet pipe 26: flange

28: valve 29: valve body

30: flange fastener 32: bolt

34 discharge pipe 36,38 partition wall

39: back house 40: closed end of the discharge tube

42: sealing material 44: hole

46: socket 48: discharge tube sealant

49 connection device according to the invention 50: bolt

52, 54: bracket 60: grip band

62: border 70: coronal part

72: stepped portion 74: protrusion

90: adapter 92: male

94: adapter 98: filter bag

100: upper space 102: dresser fastener

106: dresser fastener 108: motor

112: dresser fastener 114: nut

118 body

As shown in Fig. 1, the horizontal main pipe 20 is formed with a hole 22 facing upwards, and the hole 22 has a small vertical pipe (hereinafter referred to as an inlet pipe 24) having a short vertical length. Is connected to the end of the inlet pipe 24 is provided with a normal flange fastener (30). A right angle diaphragm valve 28 having a flange fastener 30 mating with the fastener 30 at the inlet side is connected to the inlet flange 26 by any suitable fastening means such as bolt 32. It is tightly fixed.

The valve 28 itself has the same structure as the conventional one in all respects except for the coupling of the connecting portion and the sealing member. In the present invention, the inlet pipe 24 and the compressed air outlet passage (hereinafter referred to as discharge pipe 34) at the same time, the compressed air coming out of the outlet side of the valve 28, for example, bag And a coupling device for assembly with the valve body 29 which guides into the filter elements contained in the vertical bulkheads 36 and 38 of the house 39.

The discharge pipe 34 must pass through the hole 44 formed in the vertical partition wall 36 of the bag house at a right angle and seal the air leakage generated between the holes 44. The discharge pipe 34 is blocked at the tip 40 away from the connection with the valve outlet.

The present invention, as shown in Fig. 1 showing the first embodiment, includes a seal 42 for a bag house-socket gap that seals between the hole 44 and the outer circumferential surface of the socket 46, It also includes a sealant 48 for socket-discharge tube clearance that seals between the opening end of the discharge tube 34 and the hole of the socket 46.

The above is described in detail in FIGS. 5 to 7.

The seals 42 and 48 and the connecting device 49 are mutually coupled so that one or both of the partitions 36 and 38 and the main pipe 20 or the socket 46 and the discharge are discharged due to an assembly mistake or during use. In order to accommodate the positional inaccuracy caused by the relative movement between the pipes (34) is to provide an advantage and convenience in assembling the bag house (39).

2 shows a modified form of the connecting device shown in FIG. 1, that is, a second embodiment. Here, the hole 44 formed in the vertical bulkhead 36 of the bag house has a smaller diameter than that shown in FIG. 1. This is so that the gap between the discharge pipe 34 and the hole 44 is similar to the gap between the socket 46 and the hole 44 shown in FIG.

However, if the hole 44 is made larger, the sealing material 42 may be suitably larger to fit the larger hole 44. The discharge tube 34 penetrates through the hole 44 and extends out of the bag house, thereby allowing the socket-tube assembly 49 to completely lie outside of the bag house. In this case, the bag house-discharge pipe gap sealing material 42 may be molded such that an inner diameter thereof is tightly coupled to the discharge pipe 34.

Alternatively, however, a cylindrical adapter bush (not shown) may be provided so that the sealing material 42 of one size may be suitable in either case of FIG. 1 or FIG. 2.

1 and 2, the discharge pipe 34 is mechanically connected to the baghouse partition 38 as a fastener, which is a bolt and a screw, such as a bolt through a hole drilled in each of the two brackets. The bracket 50 is one bracket 52 of the two brackets is fixed to the closed end 40 of the discharge pipe and the other bracket 54 is fixed to the bag house partition 38.

1 and 2 show a pair of flanged connections 26, 30 which are joined together by bolts 32 to connect the valve inlet to the inlet pipe 24, which is the valve 28. This is because the sliding slide horizontally to fit the discharge pipe 34 and if it does not fit, the position of the flanges (26, 30) can be corrected and then fastened to the bolt (32). This shows that the above-described assembly step is completed in the order of the bag house, the main pipe 20, the discharge pipe 34.

The pair of flanges shown in FIGS. 1 and 2 do not become the only type of connection that may be on the inlet side in the scope of the present invention and, if necessary, of a tube-socket that is exactly the same as or similar to the outlet connection. Connections can be applied.

In this case, first, the valve 28 is moved onto the inlet pipe 24, and then the discharge tube 34 is inserted into the socket while penetrating the hole 44, and the closed end 40 of the discharge tube 34 is closed. ) Is to be assembled in the order of fixing the partition 38.

As shown in FIG. 2, two partition seals 42 may be used, one of which supports the outer surface of the partition 36 and the other supports the inner surface.

The device can also be applied to the first embodiment of the invention shown in FIG. 1 and in any case can improve the level of sealing in the hole 44, in particular the hole 44 being more than shown. If it is larger, it has a big effect.

3 is an enlarged view of the molded partition wall seal 42 shown in FIGS. 1 and 2.

The sealing member 42 is provided with an annular grip band 60 at one end and an edge 62 extending in the radial direction at the other end and extending in the radial direction, and having two grip bands 60 and The rim 61 is separated by thin walled bends 64 at their centers.

The seal 42 is molded from an elastic material such as nitrile or other rubber or a polyurethane elastic material with moderate elasticity.

The two figures shown in FIG. 4 show the ability of the barrier sealant 42 to adhere the sealant 42 to the barrier 36 even when the barrier rib has an axial relative movement with respect to the socket 46, respectively. The relative motion is caused by the pressure fluctuations essentially occurring between the inside and outside of the bag house 39, and this pressure fluctuation is caused by both partitions 36 and 38 with respect to the position of the socket 46 and the valve 28. Relative inward and outward motion occurs.

It is also useful for catching small variations caused by inaccuracies on fabricated parts forming the finished bag house filter device. This can reduce the cost of high precision manufacturing and assembly by providing a tolerance for joining the devices.

The arrangement shown in the figures enables compensation for the positional differences of each hole 44 with respect to the main pipe 20 and is necessary because of the tolerances generated and the filter bag house 39 of the dust collector. Is economical in terms of the manufacturing method normally used for the assembly of the (); i.e. the parts are large sheet metal or metal plates which are manufactured almost without machining).

There may be significant variations in straightness and flatness due to the manufacturing process of the thin plates, metal plates and main pipes used in the bag house 39.

The valve 28 with the device according to the invention can significantly compensate for the unevenness of the flatness of the partition 36 through which the discharge tube 34 or the socket 46 penetrates.

FIG. 5 shows a seal 48 for a socket-discharge tube gap molded with a suitable elastomeric material, such as nitrile rubber, for example, which opens the discharge tube 34 (see also FIG. 4). An elongated tubular portion (70) formed tightly but slidingly over the outer diameter of the stage is included.

The hole of the sealing material 48 travels precisely with respect to the tight outer diameter of the discharge pipe 34, and as a result, is combined with the discharge pipe 34 to assemble, adjust or move when using the discharge pipe 34 associated with the socket 46. While the hole of the sealing material 48 maintains close adhesion.

At one end of the long tubular portion 70 is a stepped 72 formed to be bent inward to support the pipe wall of the open end of the discharge tube. The inwardly bent step 72 encounters a round cross-sectional protrusion 74 extending outward in the axial and radial directions so that the maximum diameter of the protrusion 74 is slightly smaller than the internal diameter of the socket 46 fitted therein. Gets bigger The protrusion 74 is flexible and can be held in the axial length direction of the inclined hole of the socket 46 by the protrusion 74 inserted into the socket 46 and bent inward less than its free diameter. . The protrusion 74 can be easily changed inward or outward to maintain the density.

When assembled to the socket 46 of the valve 28, the protrusion 74 supports the step or shoulder 80 (see Fig. 6) formed in the socket 46.

FIG. 6 is a diagram of the two half portions 34a and 34b of the discharge tube shown schematically, regardless of the axial movement of the discharge tube 34 connected to the inclined portion of the inner diameter of the socket 46. The ability of the sealant 48 for discharge tube-socket clearance to maintain a sealing contact is shown.

To facilitate socket manufacture, the outlet of the socket 46 is preferably made slightly inclined when the outlet of the valve 28 is made as an integral part of a casting or mold comprising the body portion of the valve 28.

In spite of the inclination of the socket, the socket 46 having an elastic force against the discharge tube seal 48 can be matched in a range of axial positions, as shown. In addition, the implementation of FIG. 6 makes it more economical to assemble and manufacture the baghouse filter.

7 shows a socket-discharge tube clearance sealant 48 having an error tolerance for angular misalignment, which facilitates assembly of the valve between the main pipe 20 and the discharge tube 34. It is a very useful structure to make, and the arrangement of components and structures is not accurate. The angle X is about 3 degrees.

Figure 8 shows an embodiment of one form of the invention, i.e. one end with a male thread 92 which deforms a conventional valve with a conventional female threaded outlet connection for use in the device according to the invention. The adapter portion 90 is shown. In this case, the socket 46 is similar to that shown in Figs. 1 and 2, the adapter 46 is coupled to the outlet threaded valve hole, and all other previously illustrated forms can be applied.

The adapter 90 is inserted into the hole formed in the valve inlet instead of the outlet hole or like the outlet hole, the coupling structure of the present invention can be applied to either or both of the inlet and outlet of the valve 28 according to the present invention. have.

Fig. 9 shows another embodiment of the present invention, in particular a flat tubular form on either or both inlets and outlets (not shown) respectively coupled to an integrally manufactured valve or inlet pipe or discharge tube. An adapter 94 that can be used for a valve having a is shown, which adapter 94 can be preferably applied to any device. Sockets 46a and 46b are provided at both ends of the adapter 94.

10 is an overall perspective view of an exemplary application of the bonding structure of the present invention in the manufacture of a bag house 39 including a dust filter bag 98.

As shown, the discharge tube 34 is connected in a conventional manner, and dresser fittings 102 penetrate the partition 36 of the upper space 100 forming a part of the bag house 39. In addition, the coupling structure to the valve inlet including the dresser fitting 106 is schematically shown.

FIG. 11 shows a plan view in a much reduced size of a bag house 39 of a representative dust collector in which dust bag filter bags 98 which act as filter elements in each row are shown in a much smaller size. The width and height are approximately 3m, and each row is supported by one discharge pipe 34 and a valve 28, respectively. It can be seen that a benefit can be gained from this connection device if the connection device having the size in the above description is provided with a highly resistant assembly so that it is resistant.

In addition, the wall thickness of the formed partition walls 36 and 38 of the bag house 39 is relatively thin (1/8 to 1/4 inch) of 3.5-6.4 mm (1/8-1/4 inch), and deviations from the plane face the manufacturing of the assemblies. This is a problem.

Likewise, the main pipe 20 has a diameter of 150-200 mm (6-8 inches) in the usual case, which may cause another problem if the straightness is poor.

The connecting device of the present invention can be very helpful in overcoming the deviation out of the plane, while the function of the rectangular valves 28 functions as a filter member provided inside the baghouse 39. Air pulses continue to be injected into the vertical strip supported by the dust collection filter bag 98, whereby the partition walls 36 and 38 of the baghouse 39 are compressed air pressure pulses to release dust out of the members. Under the influence of, it tends to bend inward and outward.

Since the sealing material 42 of the present invention (as shown in Fig. 4) has elastic restoring force in the axial direction, there is no problem even if the sealing material 42 is still bent.

A characteristic of the diaphragm valve 28 having a right-angle flow path is that it is easy and easy for the main pipe 20 to be accurately positioned on the partition 36 of the baghouse 39 by a relatively small bracket (not shown). Do.

On the contrary, the diaphragm valve 28, which is shifted by about 180 ° from the inlet and outlet holes, requires no complicated main pipe system, which can be more obstructive with respect to the adjacent baghouse 39 and the partition 36. The valve 28 is associated with a small offset at the position of the inlet pipe or the main pipe 22 with respect to the position of the discharge pipe 34 and the hole 44 provided in the partition 36 of the baghouse 39. Elbow fittings need to be added.

In addition, the other components shown in FIG. 11, that is, the air compressor 106, the motor 108, and the electric control pipe 110 (duct) supply a control signal to the valve.

12 shows a conventional coupling device is coupled with the dresser type compression nut. The inconveniences of the conventional device have been discussed at the beginning of the detailed description of the invention.

Reference numerals in FIG. 12 follow the front view and FIGS. 12A and 12B show dresser fasteners 112 on both sides.

12C and 12D, when the threaded nut 114 is tightened, the tapered rubber washer 116 is pushed into a groove formed in the body 118 of the mating fasteners 102 and 112, thereby fastening the fastener and the discharge pipe. Seal between (34).

12B and 12C show dresser fasteners 102 formed on only one side.

Claims (16)

(Three times correction) an inlet and an outlet part, the inlet part being connected to the main compressed air storage tank through the main pipe, and the outlet part is discharged through the hole of the baghouse bulkhead vertically and inserted into the baghouse; A compressed air seal and connecting device for use in connecting a valve to be connected, comprising: a first sealing means for sealing between an outlet and a discharge pipe of said valve, including a socket and a tube member, and extending in an annular and axial direction. And a second sealing means provided with a sealing material having an elastic shape to seal the hole formed in the partition wall of the baghouse, and the elastic sealing material deforms and presses the partition wall around the hole. And the edge is spread in the radial and axial directions at the part of clamping the outer circumference of the socket. Sajyeo, and that the clamping grip band is compressed, and the airtight connection device to move in axial direction on either side of the member of the socket or tube in order to seal between the bore and socket. (3 times correction) The compressed air tightness and connection device according to claim 1, wherein the valve is a right-angle inductive diaphragm valve. The compressed air airtight and connecting device according to claim 1, wherein the hole formed in the baghouse partition wall has a predetermined size so as to form a gap in one of the discharge pipe and the socket. The compressed air tightness and connecting device according to claim 1, wherein the first sealing means is installed at a valve inlet connected to the inlet pipe. The compressed air tightness and connecting device according to claim 1, wherein the connection at the valve inlet side is fastened by any one of a screwing type, a flange and a bolting type. A compressed air flow path means, the compressed air flow path means being terminated in a socket having a seal for the pipe-socket gap, the compressed air flow path means being closed, the seal having a long hole, the opening being a cylindrical duct having an open tip; The first end is detachably fitted, and the first sealing means is detachably fitted to the open end outer peripheral surface of the duct so that the pipe and the socket closely hold the front end of the duct during an axial relative movement. The sealing means includes an edge extending in the axial direction and the radius at the open tip, the edge being configured such that the outwardly curved surface is brought into contact with the inner wall formed with the hole extending in the longitudinal direction. And connecting devices. 2. The valve of claim 1, wherein the valve comprises at least one portion having a seal in the form of a socket into which the cylindrical pipe is fitted, wherein the cylindrical pipe is fitted in the socket, and the seal is of a first annular length. The first portion is fitted with an outer peripheral surface of one end of the cylindrical pipe, the cylindrical pipe having a grip for tightly sealing the first portion and the pipe, the grip being curved in cross section; And a rim extending in the axial direction and the radial direction, wherein the maximum diameter of the edge portion is larger than the hole diameter of the socket in a state where the grip portion is not compressed. 2. The tube-socket gap of claim 1, wherein the valve has an outlet at the end of the flow path in a socket having a long hole, the hole being fitted with a cylindrical pipe, and sealing a gap between the cylindrical pipe and the hole. A sealing device is provided, wherein the sealing device is a sealing material made of an elastic material having an elongated tubular portion, wherein one end of the cylindrical pipe is fitted in the tubular portion and has an inlet portion formed by a flange coupling. Compressed air tightness and connections. The method of claim 8, wherein the outlet portion is formed of a long socket, the socket has a cylindrical outer surface, the sealing material for the gap between the socket and the wall is fitted on the outer surface, the sealing material is deformed while the wall surface The cover portion is inclined to extend radially and axially from one end of the grip band of the sealant, and as the sealant moves while being in close contact with the outer surface of the socket, the socket And the sealing position is also adjusted according to the position of the socket through the gap hole of the wall disposed perpendicular to the central axis of the compressed air tightness and connection device. 10. The compressed air tightness and connection device according to claim 9, wherein the socket-wall clearance seal has an outlet socket for connecting a right-angle flow path diaphragm valve. (Twice correction) The compressed air tightness and connection device according to claim 11, wherein the valve is connected to a discharge pipe in the dust collector bag house. 10. The compressed air tightness and connecting device according to claim 9, wherein the sealant for the gap between the socket and the wall seals the gap between the outlet socket of the valve and the discharge pipe to which the socket is connected and the wall of the dust collector bag house. . 7. The compressed air according to claim 1, wherein the valve has a long tubular surface having at least one threaded portion formed on an outer circumferential surface of the socket portion, and coupled to the duct via a socket-screw adapter. Airtight and connecting devices. 14. The compressed air tightness and connection device according to claim 13, wherein at least one of said socket-to-screw adapters is engaged with at least one threaded portion formed in the body portion of said valve. 14. The compressed air tightness and connection arrangement according to claim 13, wherein the singer socket-to-screw adapter is coupled to the outlet side of the right-angle flow path diaphragm valve and the flange is coupled to the inlet side. 14. The compressed air tightness and connection arrangement according to claim 13, wherein the socket-to-screw adapter is coupled to the inlet side of the rectangular flow diaphragm valve and the flange is coupled to the outlet side.

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