CN217107559U

CN217107559U - Integrated centrifugal compressor casing

Info

Publication number: CN217107559U
Application number: CN202220980655.XU
Authority: CN
Inventors: 李敏; 范存勇
Original assignee: Liaoning Telaizi Environmental Protection Equipment Manufacturing Co
Current assignee: Liaoning Telaizi Environmental Protection Equipment Manufacturing Co
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2022-08-02
Anticipated expiration: 2032-04-26

Abstract

The utility model discloses an integral type centrifugal compressor casing has solved the unstable problem of traditional compressor structural connection, and its technical scheme main points are: the casing is structure as an organic whole, the casing is provided with spiral case, gearbox and oil tank, the spiral case is located the gearbox side, is provided with the shaft hole of intercommunication between spiral case and the gearbox, the oil tank is located the gearbox bottom, and the oil tank is formed by gearbox bottom space, the gearbox top is provided with the oil pocket that is linked together with the gearbox, the spiral case is connected with air outlet channel, and air outlet channel and spiral case intercommunication have reached the purpose that increases compressor structural stability.

Description

Integrated centrifugal compressor casing

Technical Field

The utility model belongs to the technical field of the compressor, refer in particular to an integral type centrifugal compressor casing.

Background

Centrifugal compressors are widely used in various fields in reality, and high-speed centrifugal compressors are used as high-speed rotating equipment, and generally, a main motor drives a speed change gear box through a coupler, and then an impeller is directly driven by a high-speed shaft of the speed change gear box to do work.

However, the conventional volute is usually connected with the speed increasing box through bolts, for a compressor with a large flow rate and a high-temperature and high-pressure medium, the size of the volute is much larger than that of the gear box, the weight of the volute is heavier, and in addition, the thermal deformation of the volute is larger, so that the connection stability of the conventional connection mode is poor, and the connection stability between the volute and the gear box is damaged due to the fact that the flange is cracked or the bolts are broken due to the fact that the stress of the connection flange and the bolts of the gear box and the volute is too large.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a stable in structure's integral type centrifugal compressor casing.

The purpose of the utility model is realized like this: the utility model provides an integral type centrifugal compressor casing, includes the casing of casing, casing structure as an organic whole, the casing is provided with spiral case, gearbox and oil tank, the spiral case is located the gearbox side, is provided with the shaft hole of intercommunication between spiral case and the gearbox, the oil tank is located the gearbox bottom, and the oil tank is formed by gearbox bottom space, the gearbox top is provided with the oil pocket that is linked together with the gearbox, the spiral case is connected with air outlet channel, air outlet channel and spiral case intercommunication, the casing outside is provided with supplementary mount table.

Furthermore, supplementary mount table and casing structure as an organic whole, supplementary mount table distributes around the casing is outside.

Further, the side of the shaft hole in the gearbox is provided with a bearing bracket, and the bearing bracket and the shell are of an integrated structure.

Furthermore, the shaft hole is arranged at the center of the volute.

Furthermore, an oil filling hole is formed between the oil cavity and the gearbox, and an oil outlet hole is formed in the oil tank.

Further, the bottom of the volute is provided with a condensation discharge hole.

Compared with the prior art, the utility model outstanding and profitable technological effect is: the shell structure of the centrifugal compressor provided by the invention adopts an integrated design, namely the volute, the gearbox and the oil tank are integrated, so that the problem of risks of flange cracking or bolt fracture and the like caused by overlarge stress on a connecting flange and a bolt of the gearbox and the volute in the traditional split centrifugal compressor is solved, and the problems of large unit space layout, more processing procedures, poor sealing effect, complex assembly and maintenance and the like are solved in a phase-changing manner.

Meanwhile, the gearbox and the oil tank are designed to be in the same cavity, so that the shell is more reasonable in layout, compact in structure and smaller in overall weight, and is easier to assemble compared with a complex oil tank structure of a traditional centrifugal compressor.

Meanwhile, a plurality of auxiliary mounting platforms are arranged outside the shell, so that various parts, instrument parts, pipe fittings and other auxiliary devices can be flexibly arranged outside the shell, and the application range of the shell is widened.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a top view of the present invention.

In the figure: 1. a volute; 2. a gearbox; 3. an oil tank; 4. an air outlet channel; 5. a shaft hole; 6. an oil chamber; 7. an auxiliary mounting table; 8. a bearing bracket; 9. an oil filler hole; 10. and (4) removing condensation holes.

Detailed Description

In order to make the technical solution in the present invention better understood, the following description is made in conjunction with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solution in the embodiments of the present invention.

This embodiment provides an integral type centrifugal compressor casing, including the casing of casing, the casing structure as an organic whole, the casing is provided with spiral case 1, gearbox 2 and oil tank 3, spiral case 1 is located gearbox 2 side, is provided with the shaft hole 5 of intercommunication between spiral case 1 and the gearbox 2, shaft hole 5 is seted up in spiral case 1 central point and is put, spiral case 1 is used for the compressor to admit air, is provided with the impeller that is used for gas compression in the spiral case 1, is provided with the transmission shaft in the shaft hole 5, and axis of rotation one end is connected with the impeller, and the other end is connected with change gear, and change gear is located gearbox 2, and change gear is connected with driving motor.

The oil tank 3 of the utility model is positioned at the bottom of the gearbox 2, and the oil tank 3 is formed by the bottom space of the gearbox 2, and the oil tank 3 is used for collecting the lubricating oil dropping from the speed changing gear for the circulation of the lubricating oil; 2 tops of gearbox are provided with the oil pocket 6 that is linked together with gearbox 2, and oil pocket 6 is used for storing lubricating oil, and lubricating oil can lubricate rotary parts such as change-speed gear, transmission shaft and bearing, be provided with oil filler point 9 between oil pocket 6 and the gearbox 2, oil filler point 9 can carry out the oiling lubrication to the change-speed gear group in the gearbox 2, later lubricating oil falls into in the oil tank 3 of 2 bottoms of gearbox, the oil outlet has been seted up to oil tank 3, the inlet port has been seted up to oil pocket 6, through the oil pump intercommunication between oil outlet and the inlet port, realizes the circulation of lubricating oil.

The utility model discloses in, the casing outside is provided with supplementary mount table 7, and supplementary mount table 7 and casing structure as an organic whole, supplementary mount table 7 distribute around the casing is outside, can be according to on-the-spot actual conditions, nimble auxiliary device such as arranging various parts, appearance spare and pipe fitting, supplementary mount table 7 be provided with various auxiliary device matched with screw hole or joint seat isotructure, auxiliary device passes through bolt, joint or other conventional connected modes and is connected with supplementary mount table 7.

5 sides in shaft hole in gearbox 2 set up bearing bracket 8, bearing bracket 8 and casing structure as an organic whole, and shaft hole 5 is passed to transmission shaft one end, is connected with the impeller in spiral case 1, and the other end is fixed through bearing bracket 8, and bearing bracket 8 and shaft hole 5 all are connected with the transmission shaft through the bearing.

Furthermore, the volute 1 is connected with an air outlet channel 4, the air outlet channel 4 is communicated with the volute 1 and used for leading out compressed gas, and the bottom of the volute 1 is provided with a condensation discharge hole 10 which is used for leading out liquid solidified in the volute 1 in the compression process.

Claims

1. The utility model provides an integral type centrifugal compressor casing, includes the casing of casing, its characterized in that, the casing is structure as an organic whole, the casing is provided with spiral case (1), gearbox (2) and oil tank (3), spiral case (1) is located gearbox (2) side, is provided with shaft hole (5) of intercommunication between spiral case (1) and gearbox (2), oil tank (3) are located gearbox (2) bottom, and oil tank (3) are formed by gearbox (2) bottom space, gearbox (2) top is provided with oil pocket (6) that are linked together with gearbox (2), spiral case (1) are connected with air outlet channel (4), air outlet channel (4) and spiral case (1) intercommunication, the casing outside is provided with supplementary mount table (7).

2. The integrated centrifugal compressor casing according to claim 1, wherein the auxiliary mounting platforms (7) are integral with the casing, the auxiliary mounting platforms (7) being distributed around the outside of the casing.

3. The integrated centrifugal compressor casing according to claim 1, wherein a bearing bracket (8) is arranged on the side of the shaft hole (5) in the gearbox (2), and the bearing bracket (8) and the casing are of an integrated structure.

4. The integrated centrifugal compressor casing according to claim 1, wherein the shaft hole (5) is opened at a central position of the scroll casing (1).

5. The integrated centrifugal compressor casing according to claim 1, wherein an oil filling hole (9) is arranged between the oil chamber (6) and the gearbox (2), and an oil outlet hole is formed in the oil tank (3).

6. The integrated centrifugal compressor casing according to claim 1, wherein the volute (1) is provided with a drainage hole (10) at the bottom.