KR0138562Y1 - Injection device for on-line wet cleaing of compressors - Google Patents

Abstract

In the on-line wet cleaning sprayer of the compressor, the liquid detergent is sprayed via a nozzle into a flow passage flowing upstream of the compressor. The nozzle is installed on the casing wall of the compressor in such a way that it can be adjusted and maintained three-dimensionally by a ball joint and adjusted or even replaced during operation of the machine.

Description

On-line wet cleaning sprayer of compressor

The present invention is directed to a spray mechanism for on-line wet cleaning of a compressor, which can introduce a liquid detergent through a nozzle into a flow passage leading to the top of the compressor.

Conventionally used injection mechanisms have too little protection against damage that can be applied to the blade continuously. In general, such injection mechanisms are rebound nozzles, in which the connector inevitably goes relatively deep into the flow passage. Especially in transonic compressors, the disturbing elements at the compressor inlet are difficult to tolerate for technical reasons related to the flow. Potential risks associated with wing damage are due to two causes: On the one hand, the connector can be separated by resonance and impinge on the wing, and on the other hand, the connector can be corroded, for example by pitting. Can leave the position as a result. The mode of operation of this type of rebound nozzle is also quite unsatisfactory. The spraying of the detergent is not uniform depending on the size of the droplets, which causes partial vibrations on the blades. In addition, the coated wings are likely to corrode. Also, the nozzle output can be determined only by the pressure change, which will directly affect the droplet size.

As a result, the direction of nozzle classification can also change along the axis of the connector, which makes it impossible to adapt the nozzle classification to the current flow conditions individually.

The object of the present invention is, on the one hand, to adjust the injection power and the direction of injection, and on the other hand, to achieve the maximum protection of the compressor vanes from the parts of a separate mechanism under the force of the new type of the kind mentioned above. To provide one injection mechanism.

1 is a schematic longitudinal sectional view of the compressor inlet in the axial direction;

2 is a cross-sectional view of the adjustable injection mechanism installed.

Explanation of symbols on the main parts of the drawings

1: flow passage 2: atomization atomizer

3: ball-socket joint 4: wall

5: casing 6: shaft nut

7: Lock Washer 8: Clamping Nut

9: supply tube 10: connecting piece

According to the present invention the above object is achieved by constructing a nozzle with an atomizing atomizer which is installed on the casing wall of the compressor in a three-dimensional adjustable manner by a ball-socket joint.

The advantage of the present invention is that, thanks to the commercially available nozzles used for universal inserts, the operation of the compressor can be adjusted without affecting the operation of the output bridge compressor, as well as adjusting the direction and shape of the nozzle classification. It can be done during the process.

Hereinafter, with reference to the accompanying drawings with reference to the detailed description that can be seen the advantages of the present invention and can be fully understood. Compressor parts that are not critical to the present invention are omitted. The flow direction of the working medium is indicated by the arrow.

Referring to the drawings, the same parts are denoted by the same reference numerals in the various drawings, and four cases are shown in FIG. 1 as an example of the installation of the spray nozzle. Regardless of the shape of the selected compressor inlet, the number and position of the nozzles are selected such that the nozzles, on the one hand, act on the entire cross section of the flow passage, and on the other hand, are externally accessible. The medium to be sprayed is generally a mixture of commercially available concentrates and prepared water.

According to FIG. 2, this mixture is injected into the flow passage 1 via a molecular atomizer 2. This sprayer 2 is screwed into the ball-socket joint 3 and the nozzle orifice is almost flush with the ball surface. In the case shown, the firing cone is at an angle of about 90 degrees. This means that only the longitudinal axis of the sprayer needs to be installed at an angle of 45 ° with respect to the flow restriction wall 4 of the compressor casing to cover the wall area.

This case shown applies for example when injecting the mixture in the direction of flow of air flowing into the compressor. However, if you want to spray the mixture against the direction of flow of fresh air that is drawn in, simply rotate the ball-and-socket joint 90 ° to the position marked B.

In order to make these and other adjustments during machine operation, the ball-socket joint 3 is placed in a joint shell made in the casing 5. This casing, which passes through the compressor wall 4 and is preferably cylindrical in shape, is installed on a flanged base on the inside of the compressor wall. The joint shell is installed at this base. An inner thread and an outer thread are formed in the cylindrical portion of the casing 5 protruding from the outer surface of the compressor wall. Through the external thread, the casing is firmly screwed to the wall 4 by the lock washer 7 and the shaft nut 6. Through the internal thread the ball-socket joint 3 is pressed into the joint shell by the clamping nut 8 and held firmly in each position.

The atomizing atomizer 2 is connected to a feed tube 9, the other end of which is provided with a union piece 10 for receiving a flexible hose connection 11 (FIG. 1), for example. have. The axial length of the cylindrical portion of the casing 5 and the diameter of the feed tube match each other so that the feed tube 9 can be easily rotated 90 degrees in the drawing plane and in the plane perpendicular thereto. ) As a result, there is no restriction in adjusting the injection angle.

From the second road it can be seen that the part projecting into the flow passage of the compressor is minimal. This configuration makes it impossible for the part separated from the injection mechanism to pass into the wing. In addition, there is little risk that the injection mechanism will corrode or its parts will fall off with vibration. The parts in contact with the detergent in the spray mechanism are of course made of stainless steel.

The device of the present invention is characterized by the fact that it is extremely easy to maintain. This allows all service tasks such as cleaning, adjustments, inspections and repairs to be carried out when the machine is operating. This also applies to the actual exchange of atomizing atomizers when adjustments to the type or output of the nozzle classification are needed. It was found that it took about 15 minutes to change the nozzle unit.

Obviously, various modifications and variations of the present invention are possible under the above teachings. The invention is capable of implementation in the claims that differ from the one specifically described herein.

The present invention can perform all service operations such as cleaning, adjusting, inspecting and repairing during the operation of the machine, so that the adjustment of the direction and type of nozzle classification, as well as the operation of the compressor can be performed without affecting the operation of the compressor. It can be run during the operation and the maximum protection of the vane of the compressor from the parts of the instrument under pressure.

Claims (1)

Nozzle means for injecting a liquid detergent into a flow passage located upstream to an inlet of the compressor including a casing wall, and ball joint means movably mounted to the casing wall of the compressor, The nozzle means is an atomizing atomizer installed inside the ball joint means, the ball joint means, the three-dimensional adjustable so that the nozzle means therein can be adjusted in three dimensions of the compressor On-line wet cleaning jets.