RU2302581C1 - Float chamber for oil system of natural gas heater - Google Patents

Abstract

FIELD: turbine compressor engineering.

SUBSTANCE: float chamber comprises housing provided with inlet and outlet branch pipes and receives the lever with float connected with the valving member made of a slide valve mounted in the outlet branch pipe with valve that cooperates with the float through the lever plank and spring loaded toward the opening. The float chamber is provided with slide secured to the float lever and interacting with the slide valve. The chamber housing receives the detachable locking member of the float (one or two) that keeps the float to be at a single position. The locking member of the float could be made of movable rod tightly mounted in the wall of the housing. The end of the locking member cooperates with the face of the float.

EFFECT: enhanced reliability.

1 cl, 4 dwg

Description

The invention relates to turbocompressor engineering, and in particular to devices for sealing systems of rotors of natural gas blowers.

Known float chamber of the oil system of a natural gas supercharger, comprising a housing with inlet and outlet nozzles, a lever with a float disposed in it, connected to a shut-off element made in the form of a spool mounted on the outlet nozzle with a valve interacting with the float through the lever bar and spring-loaded towards the opening (AS No. 1345004, z. No. 4030458 / 25-08, publ. 15.10.87,) - the invention is selected as a prototype.

The disadvantages of the known float chamber of the oil system of a natural gas supercharger are the difficulty of setting and adjusting the oil flow, the need for frequent over-adjustment.

An object of the invention is to eliminate these drawbacks, namely, providing ease of setup and adjustment of the camera, increasing its reliability.

The technical result is achieved in that in the float chamber of the oil system of the natural gas supercharger, comprising a housing with inlet and outlet nozzles and a lever with a float located therein, connected to a shut-off element made in the form of a spool mounted on the outlet nozzle with a valve interacting with the float according to the invention, the float chamber is provided with a slider mounted on the float lever, interacting with the spool, and in the housing A removable float lock (one or two) is installed that holds the float in one position.

The technical result is also achieved by the fact that according to the invention in the float chamber, the float retainer is made in the form of a movable rod, hermetically mounted in the wall of the housing and the end of which is in contact with the end of the float.

Figure 1 presents a General view of the float chamber in longitudinal section.

Figure 2 presents a view And on the slider of the lever float.

Figure 3 presents a longitudinal section BB of the lever with the slider.

Figure 4 presents the remote element B with a spool and a saddle.

The float chamber of the oil system of the natural gas supercharger on its housing 1 has a cover 2 with a stand 3 and a seat 4. On the axis 5 in the stand 3, a lever 6 with a float 7 is installed, a slider 8 is fixed on the lever 6 with screws 9 connected to a locking element made in in the form of a spool 10, blocking the hole 11 in the seat 4. A spring 12 is fixed on the cover 2, partially balancing the weight of the float 7. At the end of the outlet pipe 13 there is a ball valve 14, spring-loaded in the opening direction by spring 15 and equipped with a pusher 16, which can be installed with Tew interaction with the lever 6 via a bracket 17 at low pressure in the cavity of the float chamber.

For the supply of gas contaminated oil into the chamber has an inlet pipe 18. The pipe 19 is used to exhaust gas. A rod 20 is placed in the housing 1 of the float chamber, the end of which contacts the end of the float 7. The strap 17 is moved relative to the lever 6 by the nuts 21.

To monitor the oil level in the float chamber, a water meter tube 22 is used.

Installation of the float chamber near the supercharger is carried out by two brackets 23.

When removing the rod 20, the socket is drowned out by the plug 24, which is included in the set of the float chamber.

The float chamber is configured in the technological building 1, in which a window is made from above, providing access to the bar 17, the rod 20, the slider 8, the spring 12.

The float 7 together with the lever 6 by turning around the axis 5 is set to a horizontal position (parallel to the plane of the brackets 23), the rod 20 abuts against the end of the float 7. When the strap 17 is moved with the nut 21 along the lever 6 with the pusher 16, the spring 15 is compressed until the ball valve 14 closes. Second the nut 21 is used to control the position of the strap 17 on the lever 6. By moving along the lever 6 of the slider 8, the spool 10 is displaced along the end face of the seat 4 relative to the hole 11, providing in the selected position of the float 7 the flow outlet 11 of the saddle 4 overlaps 4 d 0.5 mm. The position of the slider 8 is fixed on the lever 6 with screws 9.

When filling the cavity of the technological building 1 to the calculated level, the rod 20 is diverted from the end of the float 7, the spring 12 partially compensates for the weight of the float 7. In this position, the ball valve 14 is closed, the spool 10 closes the flow opening 11 in the seat 4, while the oil level is visible on the water pipe 22.

Having installed the cover 2 in the standard housing 1 of the float chamber, the position of the float 7 is fixed by the rod 20.

In the assembled and adjusted form, the float chamber is transported to the compressor station supercharger, where it is bundled with the compressor (supercharger), an oil tank, after which the rod 20 is brought out of contact with the end of the float 7.

In this form, the float chamber in the absence of pressure and a low oil level in it eliminates the leakage of oil through the flow hole 11 of the seat 4 and its entry into the outlet pipe 13 from the ball valve 14.

The camera operates as follows. When oil and gas are supplied under pressure through the inlet pipe 18 into the chamber cavity, the ball valve 14 is closed by the differential pressure. As the oil level rises, the float 7 pops up, by means of the lever 6 and the slider 8 fixed on it, displaces the flat spool 10. This opens (partially) the hole 11 in the seat 4, the oil drains into the outlet pipe 13. The bar 17 moves away from the pusher 16, the spring 15 unable to open the ball valve 14, which is closed under the differential pressure in the chamber, the oil consumption is minimal, since only the spool 10 with the seat 4 is involved. The oil level is reduced, the float 7 is lowered, the spring 12 is pulled, the slider 8 moves the spool 10, to which covers the hole 11, the bar 17 abuts against the pusher 16, compresses the spring 15.

At low pressure in the float chamber, which happens at the starting conditions of the supercharger, and the oil level rises, which means that the float 7 together with the spool 10, the spring 15 also opens the ball valve 14.

At small pressure drops, both valves are involved in the oil drain, which ensures the required flow rate with a small bore in the seat under the spool.

With a decrease in oil level, lack of pressure, the ball valve 14 is closed by a float 7 through the strap 17 and the pusher 16, which eliminates the possibility of a breakthrough of the gas filling the supercharger.

In this position, the lever system, which includes a lever 6 with a float 7, a spool 10, a spring 12, a spring 15, is under the influence of the weight of the float 7 and in the transport position of the float chamber should be free from vibrational movements by the rod 20 by stopping the latter against the end of the float 7.

Thus, the convenience of tuning and adjusting the oil flow through the float chamber is ensured and its reliability is increased.

Claims (2)

1. The float chamber of the oil system of a natural gas supercharger, comprising a housing with an inlet and outlet nozzles and a lever with a float disposed therein, connected to a shut-off element made in the form of a spool mounted on the outlet nozzle with a valve interacting with the float through the lever bar and spring-loaded towards the opening, characterized in that the float chamber is equipped with a slider mounted on the lever of the float and interacting with the spool, while a removable pop lock is installed in the camera body avka (one or two) retaining the float in the chosen position. 2. The float chamber according to claim 1, characterized in that the float retainer is made in the form of a movable rod, hermetically mounted in the wall of the housing and the end of which contacts the end of the float.

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