CN211975207U

CN211975207U - Sealing structure of cooling air outlet of silencer of closed generator

Info

Publication number: CN211975207U
Application number: CN202020567718.XU
Authority: CN
Inventors: 张学义
Original assignee: Chongqing Dinking Power Machinery Co ltd
Current assignee: Chongqing Dinking Power Machinery Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-11-20
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a seal structure of closed generator silencer cooling air exit, including silencer, generator housing and sealing washer, generator housing corresponds silencer position department and is provided with the cooling air exit, and it is protruding that the cooling air exit is provided with the round outward, the sealing washer sets up between generator housing and silencer, be provided with the recess on the sealing washer, the degree of depth of recess is less than bellied height, and the installation of realizing the sealing washer in the recess is inserted to the arch, is provided with the overlap joint lip of round towards the silencer slope along the circumference of sealing washer for prevent that the cooling air from revealing through the gap between generator housing and the silencer. The utility model discloses the terminal surface interference fit of preceding sealing washer is changed into side interference fit through setting up the overlap joint lip on the sealing washer for do not influence the appearance of complete machine again when satisfying sealed effect.

Description

Sealing structure of cooling air outlet of silencer of closed generator

Technical Field

The utility model belongs to the technical field of the generator, concretely relates to seal structure of closed generator silencer cooling air exit.

Background

The closed generator is closed relative to other generators, heat generated by the engine relative to other generator sets is not easy to dissipate in the power generation process, and if measures are not taken timely, the working performance and the service life of the engine are greatly influenced. Usually, an air duct is arranged to cool the generator, a cooling air inlet is generally arranged on the generator shell, and after the entering cold air cools the generator along the air duct, the cold air is changed into hot air with higher temperature, so as to ensure that the hot wind energy smoothly discharges the generator along the designed air duct instead of diffusing and disordering in the generator, and therefore, a sealing ring is arranged between a cooling air exhaust outlet, namely a silencer, and the generator shell.

In the prior art, as shown in fig. 1, an interference fit is formed between an end face of a seal ring and a generator housing and a silencer, and the seal ring is deformed to achieve a sealing effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses plan to provide a seal structure of closed generator silencer cooling air exit, the side interference fit who adopts the sealing washer realizes sealed, does not influence the appearance of complete machine again simultaneously.

Therefore, the utility model discloses the technical scheme who adopts does: the utility model provides a seal structure of closed generator silencer cooling air exit, includes silencer, generator housing and sealing washer, generator housing corresponds silencer position department and is provided with the cooling air exit, and the cooling air exit is provided with the round arch outward, the sealing washer sets up between generator housing and silencer, be provided with the recess on the sealing washer, the degree of depth of recess is less than bellied height, and the installation that realizes the sealing washer in the protruding recess that inserts is provided with the lap lip of round towards the silencer slope along the circumference of sealing washer for prevent that cooling air from revealing through the gap between generator housing and the silencer.

Preferably, the cooling air outlet is provided with criss-cross grids, each grid is provided with an air deflector inclining downwards, and the cooling air outlet is further provided with a circular hole for exhausting air from the exhaust hole of the silencer. The setting of cooling air exit is first add intensity, and second lets wind discharge under the direction slant of aviation baffle, reduces exhaust noise, and the setting of circular port is the discharge of the silencer waste gas of being convenient for.

More preferably, the sealing ring is made of silicon rubber, and the temperature of the silencer and the cooling air is too high to ensure the sealing performance, so that the silicon rubber with good temperature resistance is adopted.

Further preferably, a reinforcing rib is arranged on the side face of the generator shell, and a notch is arranged at the position where the sealing ring is in contact with the reinforcing rib, so that the sealing ring is prevented from interfering with the generator shell, and the appearance of the whole generator is influenced.

The utility model has the advantages that: compared with the prior art which realizes sealing by interference fit of the end face of the sealing ring, the sealing ring in the utility model is provided with the lap joint lip at the inner side of the groove, the sealing is realized by interference fit of the side face of the lap joint lip and the silencer, and the magnitude of the interference magnitude of the side face does not influence the sealing effect; meanwhile, the depth of the groove is lower than the height of the protrusion, so that the generator shell cannot deform after installation is completed.

Drawings

Fig. 1 is a schematic view of a conventional sealing structure.

Fig. 2 is a schematic view of the sealing structure of the present invention.

Fig. 3 is an enlarged view of I in fig. 2.

Fig. 4 is a schematic structural diagram of the seal ring.

Fig. 5 is a cross-sectional view taken along the line of fig. 4.

Fig. 6 is a schematic structural view of a generator housing.

Detailed Description

The invention will be further described by way of examples with reference to the accompanying drawings:

as shown in fig. 1-6, a sealing structure of a cooling air outlet of a silencer of a closed generator mainly comprises a silencer 1, a generator casing 2 and a sealing ring 3, wherein a cooling air outlet 2a is arranged at a position of the generator casing 2 corresponding to the silencer, a circle of protrusions 2b are arranged outside the cooling air outlet 2a, and the sealing ring 3 is arranged between the generator casing 2 and the silencer 1.

Be provided with recess 3a on the sealing washer 3, the degree of depth of recess 3a is less than protruding 2 b's height, and the installation of sealing washer 3 is realized to protruding 2b inserts in the recess 3a, is provided with the lap joint lip 3b of round towards the slope of silencer 1 along the circumference of sealing washer 3 for prevent that cooling air from revealing through the gap between generator housing 2 and silencer 1.

Preferably, criss-cross grids are arranged on the cooling air outlet 2a, each grid is provided with an air deflector a inclining downwards, exhaust noise is reduced, and the cooling air outlet 2a is also provided with a circular hole b for exhausting air from an exhaust hole of the silencer. The setting of cooling air exit 2a is the increase intensity firstly, secondly lets wind go into the wind channel along the direction of aviation baffle a to the slant, and the setting of circular port b is the discharge of the silencer waste gas of being convenient for.

Preferably, the sealing ring 3 is made of silicon rubber, and the temperature of the silencer 1 and the cooling air is too high, so that the silicon rubber with good temperature resistance is adopted to ensure the sealing property.

Preferably, the side surface of the generator housing 2 is provided with a reinforcing rib 2c, and a notch 3c is arranged at the contact position of the sealing ring 3 and the reinforcing rib 2c, so as to prevent the sealing ring 3 from interfering with the generator housing 2, thereby influencing the appearance of the whole generator.

Claims

1. The utility model provides a seal structure of closed generator silencer cooling air exit, includes silencer (1), generator housing (2) and sealing washer (3), generator housing (2) correspond silencer position department and are provided with cooling air exit (2a), and cooling air exit (2a) are provided with round arch (2b) outward, sealing washer (3) set up between generator housing (2) and silencer (1), its characterized in that: be provided with recess (3a) on sealing washer (3), the degree of depth of recess (3a) is less than the height of arch (2b), and the installation of sealing washer (3) is realized in arch (2b) inserts recess (3a), is provided with lap joint lip (3b) of round orientation silencer (1) slope along the circumference of sealing washer (3) for prevent that cooling air from revealing through the gap between generator housing (2) and silencer (1).

2. The sealing structure of the cooling exhaust outlet of the muffler of the enclosed generator as set forth in claim 1, wherein: the cooling air outlet (2a) is provided with criss-cross grids, each grid is provided with an air deflector (a) inclining downwards, and the cooling air outlet (2a) is also provided with a circular hole (b) for exhausting air from an exhaust hole of the silencer.

3. The sealing structure of the cooling exhaust outlet of the muffler of the enclosed generator as set forth in claim 1, wherein: the sealing ring (3) is made of silicon rubber.

4. The sealing structure of the cooling exhaust outlet of the muffler of the enclosed generator as set forth in claim 1, wherein: the side of the generator shell (2) is provided with a reinforcing rib (2c), and a notch (3c) is arranged at the position where the sealing ring (3) is contacted with the reinforcing rib (2 c).