CN221482262U - Balance pipe assembly of oilless ultrahigh-speed centrifugal compressor - Google Patents

Abstract

The utility model belongs to the technical field of centrifugal compressors, and particularly relates to an oilless ultrahigh-speed centrifugal compressor balance pipe assembly which comprises a balance pipe, wherein one end of the balance pipe is provided with an equipment connecting pipe, one end of the balance pipe is fixedly connected with a first flange plate, one end of the equipment connecting pipe is fixedly connected with a second flange plate, and the first flange plate is fixedly connected with the second flange plate through bolts. According to the balance pipe assembly, in the process of using the balance pipe assembly, after the first flange plate and the second flange plate are connected and fixed through the bolts, the first flange plate and the second flange plate can be subjected to secondary limiting and fixing by means of the matching of the arranged limiting blocks and the clamping blocks, and in the later stage, if the bolts connected with the first flange plate and the second flange plate are loosened, gas cannot leak from the joint of the first flange plate and the second flange plate.

Description

Balance pipe assembly of oilless ultrahigh-speed centrifugal compressor

Technical Field

The utility model relates to the technical field of centrifugal compressors, in particular to a balance pipe assembly of an oilless ultrahigh-speed centrifugal compressor.

Background

The compressor is a machine which increases the pressure of compressible fluid such as gas through mechanical work, the centrifugal compressor is one of them, it applies work to the gas through the rotation of the impeller, utilize centrifugal boosting effect and speed-reducing diffusion effect to convert the mechanical energy into the pressure energy of the gas, it mainly comprises two parts of rotor, stator, the rotor includes impeller, axle, balance hub, etc., the compressor is when using, because there is reaction force from high-pressure end of the compressor to the low-pressure end of the impeller by the compressed gas, namely axial thrust, in order to dispel the thrust, will use the balance tube as the gas flow path regulating the pressure difference of both sides of the balance hub of the centrifugal compressor at this moment, but in the course of using the compressor, one end of the balance tube will be fixed through flange communication with the high-pressure port of the centrifugal compressor, because the flange connected with the two is fixed through the bolt, and the centrifugal compressor will produce the vibration when using, the flange bolt will loosen because of the vibration after long-time, thus will cause the gas to leak from the high-pressure port of the balance tube and centrifugal compressor, therefore we have put forward a kind of oil-free compressor to solve the problem of the above-mentioned centrifugal compressor.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides an oilless ultrahigh-speed centrifugal compressor balance pipe assembly, which solves the problems in the prior art.

The utility model adopts the following technical scheme for realizing the purposes:

The utility model provides an oilless superhigh speed centrifugal compressor balance pipe subassembly, includes balance pipe, balance pipe's one end is provided with the equipment connecting pipe, balance pipe's one end intercommunication is fixed with first ring flange, equipment connecting pipe's one end intercommunication is fixed with the second ring flange, first ring flange passes through bolt fixed connection with the second ring flange, balance pipe's fixed surface has a supporting ring, a lateral wall of supporting ring is fixed with four springs, and four spring's one end is fixed with the removal ring, a lateral wall of removal ring is connected with four connecting rods through the round pin axle rotation, balance pipe's fixed surface has the deflector with connecting rod looks adaptation, a lateral wall sliding connection of deflector has four stoppers, the other end of connecting rod is connected with corresponding stopper rotation through the round pin axle respectively, all set up the draw-in groove on the stopper, the surface of first ring flange and second ring flange all is fixed with four fixture blocks with draw-in groove looks adaptation, the fixture block is pegged graft respectively in the inside of corresponding draw-in groove.

Further, four T-shaped grooves are formed in one side wall of the guide plate, and T-shaped blocks matched with the T-shaped grooves are fixed on one side wall of the limiting block.

Further, a screw rod is connected with the inside of a threaded hole formed in the side wall of the support ring in a threaded mode, and a knob is fixed at one end of the screw rod.

Further, a sinking groove is formed in one side wall of the first flange plate, and a sealing ring matched with the sinking groove is fixed on one side wall of the second flange plate.

Further, the springs are all made of stainless steel.

Compared with the prior art, the utility model provides the balance pipe assembly of the oilless ultrahigh-speed centrifugal compressor, which has the following beneficial effects:

According to the balance pipe assembly, in the process of using the balance pipe assembly, after the first flange plate and the second flange plate are connected and fixed through the bolts, the first flange plate and the second flange plate can be subjected to secondary limiting and fixing by means of the matching of the arranged limiting blocks and the clamping blocks, and in the later stage, if the bolts connected with the first flange plate and the second flange plate are loosened, gas cannot leak from the joint of the first flange plate and the second flange plate.

Drawings

FIG. 1 is a schematic view of a first view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a second perspective of the overall structure of the present utility model;

FIG. 3 is a schematic view of a first flange structure according to the present utility model;

FIG. 4 is a schematic view of a second flange structure according to the present utility model;

Fig. 5 is a schematic view of a stopper structure according to the present utility model.

In the figure: 1. balance the pipeline; 2. an equipment connecting pipe; 3. a first flange; 4. a second flange; 5. a support ring; 6. a spring; 7. a moving ring; 8. a connecting rod; 9. a guide plate; 10. a limiting block; 11. a clamping groove; 12. a clamping block; 13. a T-shaped groove; 14. a T-shaped block; 15. a screw rod; 16. a knob; 17. sinking grooves; 18. and (3) sealing rings.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1 and 2, an oilless ultra-high speed centrifugal compressor balance tube assembly according to an embodiment of the present utility model includes a balance tube 1, one end of the balance tube 1 is provided with a device connection tube 2, one end of the balance tube 1 is fixedly connected with a first flange 3, one end of the device connection tube 2 is fixedly connected with a second flange 4, the first flange 3 and the second flange 4 are fixedly connected through bolts, a support ring 5 is fixedly arranged on a surface of the balance tube 1, four springs 6 are fixedly arranged on a side wall of the support ring 5, a movable ring 7 is fixedly arranged at one end of the four springs 6, four connection rods 8 are rotatably connected to a side wall of the movable ring 7 through pins, a guide plate 9 adapted to the connection rods 8 is fixedly arranged on a surface of the balance tube 1, four limiting blocks 10 are slidably connected to a side wall of the guide plate 9, the other end of the connecting rod 8 is respectively connected with a corresponding limiting block 10 in a rotating way through a pin shaft, clamping grooves 11 are formed in the limiting blocks 10, four clamping blocks 12 matched with the clamping grooves 11 are fixed on the surfaces of the first flange 3 and the second flange 4, the clamping blocks 12 are respectively inserted into the corresponding clamping grooves 11, in the assembly process, one end of the equipment connecting pipe 2 is fixedly communicated with a high-pressure port of the centrifugal compressor, the balance pipeline 1 and the equipment connecting pipe 2 are fixedly communicated through bolts, at the moment, secondary limiting is performed through the limiting blocks 10 again, so that the later centrifugal compressor generates vibration, the joint of the two cannot be influenced, when the first flange 3 and the second flange 4 are required to be separated, the moving ring 7 can be pushed to move, and after the moving ring 7 moves, the four springs 6 at the moment can be in a stretched state, and remove the ring 7 and remove the back and can drive four stopper 10 reverse movements simultaneously under the effect of connecting rod 8, and the stopper 10 after removing then can remove the restriction to fixture block 12, just can separate the two after removing the bolt this moment, during the installation, repeat above-mentioned operation, then with first ring flange 3 with behind the second ring flange 4 through the bolt fastening, loosen and remove the ring 7, at this moment under the restoring force of spring 6, can make stopper 10 joint respectively on fixture block 12 to the realization is spacing fixed to the second of first ring flange 3 and second ring flange 4.

As shown in fig. 2 and 5, in some embodiments, four T-shaped grooves 13 are formed in a side wall of the guide plate 9, and T-shaped blocks 14 adapted to the T-shaped grooves 13 are fixed on a side wall of the limiting block 10, so that the limiting block 10 can be supported, and meanwhile, the limiting block is more stable in the sliding process.

As shown in fig. 1 and 2, in some embodiments, a screw rod 15 is screwed inside a threaded hole formed in a side wall of the support ring 5, one end of the screw rod 15 is fixed with a knob 16, and when the first flange 3 and the second flange 4 are detached, the moving ring 7 can be limited by using the screw rod 15, so that a worker can conveniently disassemble and assemble the moving ring.

As shown in fig. 3 and fig. 4, in some embodiments, a side wall of the first flange 3 is provided with a sink 17, and a side wall of the second flange 4 is fixed with a sealing ring 18 adapted to the sink 17, so that tightness of the first flange 3 and the second flange 4 after being attached can be enhanced, and leakage of gas is avoided.

As shown in fig. 1, in some embodiments, the springs 6 are made of stainless steel, and the stainless steel springs 6 have advantages of uniform elasticity, good fatigue resistance, good heat and corrosion resistance, and long service life.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. Balance pipe assembly of oilless ultra-high speed centrifugal compressor, including balance pipe (1), its characterized in that: the utility model discloses a balance pipe, including balance pipe (1), fixed connection, clamping groove (11) are all offered on stopper (10), fixed connection's (12) are in the fixed connection of fixed connection, fixed connection's (1) one end of balance pipe (1) is provided with equipment connecting pipe (2), the one end intercommunication of balance pipe (1) is fixed with first ring flange (3), the one end intercommunication of equipment connecting pipe (2) is fixed with second ring flange (4), first ring flange (3) and second ring flange (4) pass through bolt fixed connection, the fixed connection of surface of balance pipe (1) is provided with supporting ring (5), a side wall of supporting ring (5) is fixed with four springs (6), one end of four springs (6) is fixed with movable ring (7), a side wall of movable ring (7) is connected with four connecting rods (8) through the round pin axle rotation, the fixed connection of surface of balance pipe (1) is equipped with deflector (9) with four stopper (10), the other end of connecting rod (8) is respectively through round pin axle and corresponding stopper (10) rotation, clamping groove (11) are all connected with the inside clamping groove (12) of clamping ring (12).

2. An oil-free ultra-high speed centrifugal compressor balance tube assembly according to claim 1, wherein: four T-shaped grooves (13) are formed in one side wall of the guide plate (9), and T-shaped blocks (14) matched with the T-shaped grooves (13) are fixed on one side wall of the limiting block (10).

3. An oil-free ultra-high speed centrifugal compressor balance tube assembly according to claim 1, wherein: screw rods (15) are connected with the inner threads of threaded holes formed in the side walls of the supporting rings (5), and one ends of the screw rods (15) are fixed with knobs (16).

4. An oil-free ultra-high speed centrifugal compressor balance tube assembly according to claim 1, wherein: a sinking groove (17) is formed in one side wall of the first flange plate (3), and a sealing ring (18) matched with the sinking groove (17) is fixed on one side wall of the second flange plate (4).

5. An oil-free ultra-high speed centrifugal compressor balance tube assembly according to claim 1, wherein: the springs (6) are all made of stainless steel.