CN210371234U

CN210371234U - Steam compressor for evaporator

Info

Publication number: CN210371234U
Application number: CN201921459600.9U
Authority: CN
Inventors: 龚晓锐; 尚维东
Original assignee: Dalian Tianfu Environmental Technology Co Ltd
Current assignee: Dalian Tianfu Environmental Technology Co Ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-04-21
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a vapor compressor for evaporator, including the compressor shaft, set up main blade rotor and guide rotor on the compressor shaft, main blade rotor periphery evenly is equipped with a plurality of main blades, guide rotor periphery evenly is equipped with a plurality of guide vanes, and guide rotor is located the below of main blade rotor, guide rotor lower part installs hemisphere millet cover, main blade periphery is equipped with a plurality of diffuser blades, the diffuser blade outside corresponds and is connected with the diffuser passageway, main blade and guide blade below are equipped with the main apron, the diffuser passageway is connected on the main apron upper portion, and main apron, guide rotor, main blade rotor and the guard shield of connecting compressor shaft upper portion form the compressor compression cavity; the guide blade of the utility model is axial flow type, the main blade is centrifugal type, and the guide blade has the obvious advantages of large steam quantity, low temperature rise, compact structure, less energy consumption, low noise, good plasticity and negative pressure operation; and the two-stage split design is adopted, so that the transportation, installation, maintenance and debugging costs are saved.

Description

Steam compressor for evaporator

Technical Field

The utility model relates to a compressor technical field, concretely relates to vapor compressor for evaporimeter.

Background

At present, all compressors used by domestic evaporators are centrifugal compressors manufactured based on a ternary theory, and most compressors are universal models of compressor manufacturers. The design of the compressor mostly adopts an aerodynamic model, and is different from the working environment used by the evaporator. The special design of large flow, low temperature rise, low energy consumption and negative pressure operation required by the evaporator process lacks pertinence and effectiveness. In addition, the prior domestic compressor for the evaporator has the problems of large volume, high noise, large installation occupied area and the like.

The gear box that patent application number (201310334649.2) centrifugal vapor compressor adopted causes transmission loss, and work efficiency is low, and adopts centrifugal three-dimensional flow blade, is not suitable for the operational environment that the evaporimeter required, and impeller main blade, minute blade and impeller are as an organic whole to be formed among the comparison document, and inconvenient transportation installation and maintenance are changed. Therefore, the problem to be solved is to design a vapor compressor which meets the process requirements of the evaporator and has the advantages of high flow rate, low temperature rise, low energy consumption and negative pressure operation.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a vapor compressor for evaporator.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a vapor compressor for evaporator, includes the compressor shaft, set up main blade rotor and the guide rotor on the compressor shaft, main blade rotor periphery evenly is equipped with a plurality of main blades, the guide rotor periphery evenly is equipped with a plurality of guide blades, and the guide rotor is located the below of main blade rotor, hemisphere millet cover is installed to guide rotor lower part, main blade periphery is equipped with a plurality of diffuser blades, the diffuser blade outside corresponds and is connected with the diffuser passageway, main blade and guide blade below are equipped with main apron, diffuser passageway is connected on main apron upper portion, and main apron, the guide rotor, main blade rotor and the guard shield of connecting compressor shaft upper portion form compressor compression cavity.

Specifically, the upper part of the compressor shaft is connected with a protective cover, and the inner side of the protective cover is connected with two ends of the diffuser channel.

Specifically, a steam inlet is formed among the main cover plate, the hemispherical grain cover and the guide rotor, and is divided by the hemispherical grain cover.

Specifically, the diffuser channel adopts an integrated 90-degree bend to form a steam outlet.

Specifically, the guide blades rotate in an axial flow mode, and the main blades rotate in a centrifugal mode.

Specifically, the main blade and the guide blade are arranged in a two-stage split type and independently, and the main blade and the guide blade, a main blade rotor and a guide rotor are made of different materials.

Specifically, the upper end of the compressor shaft is connected with a motor shaft.

The utility model discloses following beneficial effect has:

the steam compressor guide blade for the evaporator designed by the utility model is axial flow type, and the main blade is centrifugal type, so that the steam compressor has the remarkable advantages of large steam quantity, low temperature rise, compact structure, less energy consumption, low noise, good plasticity and negative pressure operation; the two-stage split design and the split installation design are adopted, so that the transportation, installation, basic maintenance and debugging costs are saved; the motor shaft is directly connected with the compressor shaft, so that transmission loss is saved, and efficiency is improved.

Drawings

Fig. 1 is a schematic view of a vapor compressor for an evaporator.

Fig. 2 is a bottom view of the vapor compressor for the evaporator.

In the figure: 1-a compressor shaft; 2-main blade rotor; 3-a main blade; 4-a shield; 5-guide vanes; 6-guiding the rotor; 7-hemispherical cereal cover; 8-a main cover plate; 9-diffuser vanes; 10-diffuser channel.

Detailed Description

The technical solution in the embodiments of the present invention will be described in further detail in the following clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, a vapor compressor for an evaporator comprises a compressor shaft 1, a main vane rotor 2 and a guide rotor 6 which are arranged on the compressor shaft 1, wherein a plurality of main vanes 3 are uniformly arranged on the periphery of the main vane rotor 2, a plurality of guide vanes 5 are uniformly arranged on the periphery of the guide rotor 6, the guide rotor 6 is positioned below the main vane rotor 2, a hemispherical valley cover 7 is arranged on the lower portion of the guide rotor 6, a plurality of diffuser vanes 9 are arranged on the periphery of the main vane 3, diffuser channels 10 are correspondingly connected to the outer sides of the diffuser vanes 9, a main cover plate 8 is arranged below the main vane 3 and the guide vanes 5, the diffuser channels 10 are connected to the upper portion of the main cover plate 8, and a compressor compression cavity is formed by the main cover plate 8, the guide rotor 6, the main vane rotor 2 and a shroud 4 connected to.

The upper part of the compressor shaft 1 is connected with a shield 4, and the inner side of the shield 4 is connected with two ends of a diffuser channel 10; a steam inlet is formed among the main cover plate 8, the hemispherical grain cover 7 and the guide rotor 6, and is divided by the hemispherical grain cover 7; the diffuser channel 10 adopts an integrated 90-degree bend to form a steam outlet; the guide vanes 5 adopt axial flow type rotation, and the main vanes 3 adopt centrifugal type rotation; the main blade 3 and the guide blade 5 are arranged separately and independently in a two-stage manner, and the main blade 3 and the guide blade 5 are made of different materials from the main blade rotor 2 and the guide rotor 6; the upper end of the compressor shaft 1 is connected with a motor shaft, so that transmission loss is saved, and efficiency is improved.

A steam power model is established on the product design of a steam compressor for an evaporator, thermodynamics and dynamics calculation software and working process simulation software thereof are applied, the calculation accuracy is improved, and the performance parameters of the machine under the actual working condition are predicted through a comprehensive simulation model, so that the success rate of machine development is improved, and the mechanical-electrical integration is strengthened. The whole design of the compressor adopts an axial flow and centrifugal combined structure, and the compressor is ensured to have larger steam volume under the working state of lower rotating speed and low temperature rise. The blades of the compressor adopt a two-stage split design, the guide blades and the main blades, the guide blades and the guide blade rotor, and the main blades and the main blade rotor are all designed and manufactured separately and can be assembled on site in a construction site.

When the compressor runs, under the action of rotation of the guide vanes 5, steam is divided by the hemispherical grain cover and uniformly enters the compressor from the periphery in an axial flow mode. The steam enters the main blades 3 after passing through the guide blades 5, and the pressure of the steam enters the diffuser passage 10 through the diffuser blades 9 under the centrifugal action of the main blades 3, and is discharged from the steam outlet of the diffuser passage 10 in the opposite direction to the steam inlet.

A method of operating a vapor compressor for an evaporator, comprising the steps of:

1) when the steam compressor operates, the motor drives the compressor shaft 1 through the motor shaft to enable the main blade rotor 2 and the guide rotor 6 to rotate;

2) steam is divided by the hemispherical grain cover 7 and enters from a steam inlet formed among the main cover plate 8, the hemispherical grain cover 7 and the guide rotor 6, and the guide blades 5 in a rotating state form an axial flow working principle, so that the steam uniformly enters a compressor compression cavity from the periphery;

3) then the steam passes through the main blades 3, and the pressure of the steam is improved under the centrifugal action of the main blades 3, so that the steam quickly enters the diffuser blades 9;

4) the diffuser vanes 9 rapidly diffuse and propel the steam into the diffuser channels 10, causing the steam to exit through the steam outlet in the opposite direction to the steam inlet.

The utility model discloses not be limited to above-mentioned embodiment, anybody should learn the structural change who makes under the teaching of the utility model, all with the utility model discloses have the same or close technical scheme, all fall into the utility model discloses an within the protection scope.

The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. The utility model provides a vapor compressor for evaporator, its characterized in that, including the compressor shaft, set up main blade rotor and the guide rotor on the compressor shaft, main blade rotor periphery evenly is equipped with a plurality of main blades, the guide rotor periphery evenly is equipped with a plurality of guide vanes, and the guide rotor is located the below of main blade rotor, the hemisphere millet cover is installed to guide rotor lower part, main blade periphery is equipped with a plurality of diffuser blades, the diffuser blade outside corresponds and is connected with the diffuser passageway, main blade and guide blade below are equipped with main apron, diffuser passageway is connected on main apron upper portion, and main apron, guide rotor, main blade rotor and the guard shield of connecting compressor shaft upper portion form compressor compression cavity.

2. A vapor compressor according to claim 1, wherein a shroud is attached to an upper portion of the compressor shaft, and an inner side of the shroud is connected to both ends of the diffuser passage.

3. The vapor compressor of claim 1, wherein the main cover plate, the hemispherical dome and the guide rotor form a vapor inlet therebetween and are branched off by the hemispherical dome.

4. The vapor compressor as set forth in claim 1, wherein said diffuser passage is formed as an integral 90 degree bend forming a vapor outlet.

5. The vapor compressor as set forth in claim 1, wherein said guide blades are rotated in an axial flow, and the main blades are rotated in a centrifugal flow.

6. The vapor compressor of claim 1, wherein the main blade and the guide blade are separately installed in two stages, and the main blade and the guide blade are made of different materials from those of the main blade rotor and the guide rotor.

7. The vapor compressor as set forth in claim 1, wherein said compressor shaft is connected at an upper end thereof to a motor shaft.