KR200307402Y1 - Apparatus for leakage prevention of oil - Google Patents

Abstract

The present invention relates to a lubricating water leak prevention device that provides an appropriate amount of lubricating water to cool the frictional heat of the gland packing and the sleeve, and prevents the lubricating water from flowing around the machine. And a packing presser which is installed in a cylindrical shape to have a length that allows the sleeve to protect the rotational axis of the pump from the packing, and presses and fixes the grand packing, and to eliminate the gap between the sleeve and the packing presser. A retainer installed on an inner surface, an O-ring installed on an outer surface of the upper cylinder of the packing presser to eliminate a gap between the stepping box and an outer surface of the packing presser, and assembled by screwing on one outer surface of the packing presser; Lubrication to cool the frictional heat of the sleeve It consists of a drain tube for discharging the water.

Description

Apparatus for leakage prevention of oil

The present invention relates to a pump used in a nuclear power plant, and more particularly, to provide a suitable amount of lubricant to cool the friction heat of the gland packing and the sleeve, and to prevent the lubricant from flowing around the equipment. It is about.

Generally, a pump used in a nuclear power plant includes a casing and bearing housing constituting a body of a pump, a casing cover integrally assembled between the casing and a bearing housing to form an inflow chamber, and a pump inserted into an intermediate portion of the casing cover. A gland packing that prevents fluid from flowing out of the casing, a sleeve installed to prevent abrasion of the rotating shaft due to friction with the gland packing, a rotating shaft supported by a bearing inside the bearing housing to receive the driving force of the motor, and a rotating shaft An impeller integrally assembled at the end of the pump to suck and discharge water into the casing, a cup cup for initially supplying the pump to the inside of the pump, and a pipe pipe for preventing the pressure water inside the pump from running out during operation. With broker pipe plug to plug the broker pipe It is sex.

In addition, between the gland packing and the sleeve to cool the frictional heat and to prevent the flow of lubricant in the vicinity of the device as shown in Figure 1, the lubricant leakage preventing device 10 is installed.

The lubricating water leakage preventing device 10 includes a lantern ring 10-2 for supplying grand lubricating water to prevent frictional heat generated between the gland packing and the sleeve, and a large amount of grand lubrication from the lantern ring 10-2. It consists of a grand follower 10-4 which reduces the amount of lubricating water when water is generated.

Here, in order to reduce the amount of the grand lube water, the user tightens the grand follower 10-4 using a tool.

However, when the grand follower is frequently tightened to reduce the grand lubricating water, this causes the life of the grand sleeve to be shortened and the number of disassembly and maintenance of the pump increases, causing a lot of time and cost.

In particular, the pump using the gland packing uses almost all of the gland packing glands, and the gland gland gongs have a gap between the pump stuffing box and the sleeve, causing the gland lubricating water to leak out.

Therefore, the structural precision of the components themselves is poor, after maintenance work, the amount of grand lubricant is increased even after a short time, there is a problem that the maintenance quality is deteriorated and unnecessary maintenance time is caused by the frequent tightening of the gland packing gland.

In the case of a pump using seawater and corrosive substances, since water, sludge, salt and corrosive substances are contained in the lubricating water, the surrounding environment is contaminated, resulting in loss of maintenance labor due to cleaning. Increasing the corrosion of the equipment by the salt and corrosive substances, such as shortening the life of the equipment there was a problem that the economic losses occur.

Accordingly, the present invention has been proposed to solve the above problems according to the prior art, and an object of the present invention is to supply an appropriate amount of lubricant to cool the frictional heat of the gland packing and the sleeve, as well as to provide lubricant around the device. It is to provide a lubricating water leak prevention device to prevent the flow.

Features of the lubricant leakage preventing device according to the present invention for achieving the above object,

A gland packing, a rotating shaft, a stuffing box, and a gland follower assembled with bolts and nuts on the stuffing box, supplying lubricating water to cool the frictional heat of the gland packing and the sleeve, and lubricating water flows around the machine. In the pump with a lubricating water leak prevention device,

The lubricating water leak prevention device,

Packing presses 106 are installed in a cylindrical shape with a predetermined length so that the sleeve 108 protecting the rotation axis of the pump from the packing is inserted along one inner surface of the grand follower 104 and presses and fixes the grand packing 110. )Wow;

A retainer (112) installed on an inner surface of the packing pawl (106) to eliminate a gap between the sleeve (108) and the packing pawl (106);

An o-ring (114) installed on an outer surface of the upper cylinder of the packing stopper (106) to eliminate a gap between the stepping box (102) and the outside of the packing stopper (106);

It is composed of a drain tube 116 is screw-assembled on one outer surface of the packing stopper 106 to discharge the lubricating water for cooling the frictional heat of the retainer 112 and the sleeve 108.

1 is a perspective view of a lubricant leak prevention apparatus according to the prior art,

Figure 2 is a perspective view of the lubricant leak preventing apparatus according to the present invention,

3 is a side cross-sectional view of the lubricant leak preventing apparatus of FIG.

4 is a cross-sectional view of the coupling between the lubricant leak prevention device and the pump stuffing box.

<Explanation of symbols for the main parts of the drawings>

100: lubricant leak prevention device

104: Grand Followers

106: packing presser

108: sleeve

110: grand packing

112: Retainer

114: O-ring

116: drain tube

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the lubricant leak prevention apparatus according to the present invention are as follows.

Figure 2 is a perspective view of the lubricant leak prevention apparatus according to the present invention, Figure 3 is a side cross-sectional view of the lubricant leak prevention apparatus of Figure 2, Figure 4 is a cross-sectional view of the combination of the lubricant leak prevention device and the pump stuffing box.

As shown in Figure 2 or 4, the lubricating water leak prevention device 100 according to the present invention is assembled with bolts and nuts to the stuffing box 102 installed inside the pump and pushes the packing press 106 to be described later It is installed in a cylindrical shape so that the gland follower 104 and the sleeve 108 which protects the rotation axis of the pump (not shown) from the packing along one inner surface of the gland follower 104 can be inserted. Packing gland 106 to press and fix the gland packing 110, and a retainer 112 installed on an inner surface of the packing gland 106 to eliminate a gap between the sleeve 108 and the packing gland 106. And an O-ring (114) installed on the outer surface of the upper cylinder of the packing stopper (106) to eliminate the gap between the stepping box (102) and the outer face of the packing stopper (106), and the packing stop (106). I'm on one side Assembled by the following formula, and is composed of the drain tube 116 for discharging the yunhwalsu period for cooling the frictional heat of the retainer 112 and the sleeve 108.

The assembly process and operation of the lubricating water leakage preventing device configured as described above are as follows.

First, after the grand follower 104 is positioned at a predetermined position, a sleeve 108 for protecting the rotational axis (not shown) of the pump from the packing is inserted and a packing press for pressing and fixing the grand packing 110 ( 106 is installed on one side of the grand follower 104.

In addition, a retainer 112 for removing a gap between the sleeve 108 and the packing stopper 106 is installed on the inner surface of the packing stopper 106.

On the other hand, the O-ring 114 to eliminate the gap between the stepping box 102 and the outer surface of the packing stopper 106 is installed on the outer cylinder outer surface of the packing stopper 106.

In addition, the drain tube 116 for discharging the lubricating water for cooling the frictional heat of the retainer 112 and the sleeve 108 is assembled to the outer surface of one side of the packing stopper 106 by a screw.

Thereafter, the gland follower 104 of the lubricating water leakage preventing device 100 is assembled to the stuffing box 102 installed inside the pump with bolts and nuts.

In addition, a line (not shown) is connected to drain grand lube water from the drain tube 116 to a desired place.

As described above, the lubricating water leakage preventing device according to the present invention can omit the packing presser tightening work that is performed routinely, and can keep the environment around the device clean, thereby preventing unnecessary maintenance manpower input due to the cleaning work. It has an effect.

In particular, since the main body of the device can be protected from moisture, salt and corrosive substances, it is possible to prevent the shortening of the life of the equipment caused by the corrosion of the device, thereby reducing economic losses.

Claims (1)

A gland packing, a rotating shaft, a stuffing box, and a gland follower assembled with bolts and nuts on the stuffing box, supplying lubricating water to cool the frictional heat of the gland packing and the sleeve, and lubricating water flows around the machine. In the pump with a lubricating water leak prevention device, The lubricating water leak prevention device, Packing presses 106 are installed in a cylindrical shape with a predetermined length so that the sleeve 108 protecting the rotation axis of the pump from the packing is inserted along one inner surface of the grand follower 104 and presses and fixes the grand packing 110. )Wow; A retainer (112) installed on an inner surface of the packing pawl (106) to eliminate a gap between the sleeve (108) and the packing pawl (106); An o-ring (114) installed on an outer surface of the upper cylinder of the packing stopper (106) to eliminate a gap between the stepping box (102) and the outside of the packing stopper (106); Lubricating water leakage prevention is characterized in that it is assembled by a screw thread on one outer surface of the packing stopper 106 and drain tube 116 for discharging the lubricating water for cooling the frictional heat of the retainer 112 and the sleeve 108 Device.