CN215256867U - Eccentric area water conservancy diversion muscle air entrainment nest room of centrifugal compressor - Google Patents
Eccentric area water conservancy diversion muscle air entrainment nest room of centrifugal compressor Download PDFInfo
- Publication number
- CN215256867U CN215256867U CN202121312546.2U CN202121312546U CN215256867U CN 215256867 U CN215256867 U CN 215256867U CN 202121312546 U CN202121312546 U CN 202121312546U CN 215256867 U CN215256867 U CN 215256867U
- Authority
- CN
- China
- Prior art keywords
- air
- eccentric
- chamber
- filling
- centrifugal compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An eccentric air-entrapping pit chamber with a flow guide rib for a centrifugal compressor comprises an air-entrapping opening partition plate, an upper shell and a lower shell. The method is characterized in that: (1) the upper clapboard of the air charging port is matched with the upper shell in a positioning way through a spigot, so that an air charging pit chamber at the upper half part is formed; (2) the lower partition plate of the air charging port is matched with the lower shell in a positioning way through a spigot so as to form a lower half air charging pit chamber; (3) an air inlet with a diversion rib is formed in the lower casing in an integrally cast eccentric manner; (4) the eccentric air-filling port with the flow guide rib, the upper half air-filling nest chamber and the lower half air-filling nest chamber form a complete air-filling through-flow nest chamber together. The utility model discloses simple structure is compact, has improved homogeneity, the stability in gas filling mouth gas flow field, has improved the efficiency of compressor.
Description
The technical field is as follows:
the utility model belongs to the technical field of centrifugal compressor, in particular to need the centrifugal compressor of middle air entrainment among the chemical industry technical field.
Background art:
in petrochemical enterprises, different chemical engineering processes require different air inlets and air exhausts of compressors, so that different air inlets and air exhausts of the compressors are required to be designed according to different process requirements, and the production efficiency and benefit maximization of companies are achieved by adopting different process requirements.
At present, most of centrifugal compressors used in petrochemical industry mainly have air inlet and air outlet, and the gas compressed by these compressors enters the compressor from the inlet, is pressurized by the rotor, and finally is discharged from the air outlet of the compressor and enters the downstream process pipeline.
In the centrifugal compressor, the main component is that the impeller of the compressor rotates at high speed to improve the kinetic energy of the gas, and the kinetic energy is decelerated in the diffuser to obtain static pressure energy, and then the static pressure energy passes through the curve and the reflux device to enter the next stage for continuous compression.
How to better meet the requirements of petrochemical processes, the compressor has wider operation range, more stable performance and higher efficiency, and is the aim pursued by technical personnel in the technical field.
The utility model has the following contents:
the utility model aims to improve the stability of the air current at the air inlet of the compressor and improve the efficiency when the single-cylinder multistage compressor is designed because the compressor needs interstage air entrainment for the process reason. According to theoretical and practical research, an eccentric air-entrapping nest chamber with a flow guide rib of a centrifugal compressor is designed, so that the problem is solved.
The utility model discloses an eccentric area water conservancy diversion muscle air entrainment nest room of centrifugal compressor, including air entrainment mouth baffle, upper casing, lower casing. The method is characterized in that:
(1) the upper clapboard of the air charging port is matched with the upper shell in a positioning way through a spigot, so that an air charging pit chamber at the upper half part is formed;
(2) the lower partition plate of the air charging port is matched with the lower shell in a positioning way through a spigot so as to form a lower half air charging pit chamber;
(3) an air inlet with a diversion rib is formed in the lower casing in an integrally cast eccentric manner;
(4) the eccentric air-filling port with the flow guide rib, the upper half air-filling nest chamber and the lower half air-filling nest chamber form a complete air-filling through-flow nest chamber together.
The utility model discloses an eccentric area water conservancy diversion muscle air entrainment nest room of centrifugal compressor, the water conservancy diversion muscle of its air entrainment mouth becomes 10 ~ 20 angles with vertical direction when getting into the air entrainment nest room. Therefore, the air flow can move centripetally when flowing into the air-entrapping nest chamber, and the air flow loss is reduced.
The utility model has the advantages and positive effects;
the utility model has simple and compact structure, and cancels the original non-eccentric air-entrapping nest chamber structure of the carbon dioxide compressor; the problem that the rotor supporting span is too long due to the non-eccentric gas filling port structure is solved, the rigidity of a rotor supporting system is improved, the stability of the rotor during high-speed operation is guaranteed, meanwhile, the structure is provided with the flow guide ribs, the uniformity and the stability of a gas flow field of the gas filling port are improved, and the efficiency of the compressor is improved.
Drawings
Fig. 1 is an overall cross-sectional view of a centrifugal compressor, and fig. 2 is a radial cross-sectional view of a gas-entraining pocket. In the two figures: 1 is an upper shell, 2 is an upper clapboard, 3 is a lower shell, and 4 is a lower clapboard.
The specific implementation mode is as follows:
the present invention will be further explained in detail with reference to the accompanying drawings.
According to the scheme shown in the figure 1, an upper shell and a lower shell and an upper air-entrapping port partition plate and a lower air-entrapping port partition plate are firstly processed, then the upper air-entrapping partition plate is matched with the upper shell through a positioning spigot, the lower air-entrapping partition plate is matched with the lower shell, and finally the upper shell and the lower shell are combined through bolts to form a complete air-entrapping port through-flow cell chamber.
The parameters of the oval outlet chamber of the centrifugal compressor according to the invention are further illustrated below by means of specific examples.
Example 1 eccentric ribbed aerated cell of a carbon-two refrigeration compressor
In the embodiment, an eccentric air-entrapping nest chamber with a flow guide rib of a carbon dioxide refrigeration compressor of a catalytic cracking upgrading project is adopted, a partition plate is in a casting form, and the material is ZG08Cr18Ni 9; the centrifugal compressor used for the eccentric aeration cell chamber with the diversion ribs has the stage number of 7, an air pumping and filling port is arranged between stages, the diversion ribs form an angle of 10 degrees with the vertical direction when entering the aeration cell chamber, the inlet temperature is 43.1 ℃, and the final outlet temperature is 76.3 ℃.
Example 2 eccentric area water conservancy diversion muscle air entrainment nest room of propylene compressor
The embodiment is an eccentric air-entrapping nest chamber with guide ribs for a propylene refrigeration compressor of a catalytic cracking upgrading project, wherein a partition plate is cast and is made of ZG 230-450; the centrifugal compressor used for the eccentric aeration cell chamber with the diversion ribs has the stage number of 6, the diversion ribs form an angle of 15 degrees with the vertical direction when entering the aeration cell chamber, the inlet temperature is minus 34.2 ℃, and the final outlet temperature is 73 ℃.
Example 3 eccentric ribbed aerated cells for alkylation project refrigeration compressors
In the embodiment, the eccentric aerated nest chamber with the guide ribs of the refrigeration compressor of the alkylation project adopts a casting form for a partition plate, and the material is ZG 230-450; the centrifugal compressor used for the eccentric aerated nest chamber with the diversion ribs has the stage number of 5, the diversion ribs form an angle of 20 degrees with the vertical direction when entering the aerated nest chamber, the inlet temperature is minus 2.3 ℃, and the final outlet temperature is 71.2 ℃.
The above embodiments are only design schemes proposed according to different use conditions of different users, and after signing a corresponding security agreement with the user, the schemes provide a prototype for the user to try out a special case which obtains a satisfactory effect, so that more embodiments can be listed as well
The present invention is not limited to the above embodiment, and to those skilled in the art, the form of the present invention can be changed or modified correspondingly, all changes and modifications within the spirit and principle of the present invention should be regarded as including the present invention within the authority.
Claims (2)
1. An eccentric air-entrapping pit chamber with a flow guide rib of a centrifugal compressor comprises an air-entrapping opening partition plate, an upper shell and a lower shell; the method is characterized in that:
the upper clapboard of the air charging port is matched with the upper shell in a positioning way through a spigot, so that an air charging pit chamber at the upper half part is formed;
the lower partition plate of the air charging port is matched with the lower shell in a positioning way through a spigot so as to form a lower half air charging pit chamber;
an air inlet with a diversion rib is formed in the lower casing in an integrally cast eccentric manner;
the eccentric air-filling port with the flow guide rib, the upper half air-filling nest chamber and the lower half air-filling nest chamber form a complete air-filling through-flow nest chamber together.
2. The eccentric aerated cell with the guide ribs of the centrifugal compressor according to claim 1, wherein the guide ribs of the aerated port form an angle of 10-20 degrees with the vertical direction when entering the aerated cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121312546.2U CN215256867U (en) | 2021-06-11 | 2021-06-11 | Eccentric area water conservancy diversion muscle air entrainment nest room of centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121312546.2U CN215256867U (en) | 2021-06-11 | 2021-06-11 | Eccentric area water conservancy diversion muscle air entrainment nest room of centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215256867U true CN215256867U (en) | 2021-12-21 |
Family
ID=79479192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121312546.2U Active CN215256867U (en) | 2021-06-11 | 2021-06-11 | Eccentric area water conservancy diversion muscle air entrainment nest room of centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215256867U (en) |
-
2021
- 2021-06-11 CN CN202121312546.2U patent/CN215256867U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109268295A (en) | A kind of two-stage air compression system with diameter axial direction diffuser | |
| CN1944962A (en) | Steam turbine exhaust diffuser | |
| CN209212609U (en) | A kind of two-stage air compression system with diameter axial direction diffuser | |
| CN112259762A (en) | Fuel cell cathode humidifying system | |
| CN215256867U (en) | Eccentric area water conservancy diversion muscle air entrainment nest room of centrifugal compressor | |
| CN201827150U (en) | Flow guiding structure at impeller inlet of multistage centrifugal blower or multistage centrifugal compressor | |
| CN212383902U (en) | Cyclone dust collector | |
| CN213845338U (en) | Fuel cell cathode humidifying system | |
| CN2769572Y (en) | Single-axle cantilever multistage centrifugal compressor | |
| CN211116811U (en) | Intake distortion restraint device and centrifugal compressor with same | |
| CN207454396U (en) | A kind of circumfluence structure of vehicle turbocharger | |
| CN206368831U (en) | VPSA atm number centrifugal vacuum pumps | |
| CN203146425U (en) | Water pump with fluid director | |
| CN109869330A (en) | A kind of two-stage dynamoelectric compressor | |
| CN204299955U (en) | A kind of integrated form hot and cold water recycle pump | |
| JP2018123819A (en) | Flow body compressor and electric generator utilizing flow torque of spiral revolution flow body | |
| CN210371340U (en) | Casing part of double-stage centrifugal ventilator with impeller inlets arranged oppositely | |
| CN106593899A (en) | VPSA large-capacity centrifugal vacuum pump | |
| CN208168983U (en) | A kind of centrifugal gas power turbine | |
| CN113202820A (en) | Air cooling and sealing system of fuel cell air compressor | |
| CN219509883U (en) | Axial-flow turbine air inlet structure | |
| WO2020019800A1 (en) | Multi-flow rate blower | |
| CN202348779U (en) | Centrifugal oxygen-enrichment gas compressor | |
| CN102400960A (en) | Centrifugal oxygen-enriched air compressor and application thereof | |
| CN110878768A (en) | Vaned diffuser structure with variable inlet vane angle type guide vanes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |