WO2019174498A1

WO2019174498A1 - Magnetic suspension compressor flow regulating device

Info

Publication number: WO2019174498A1
Application number: PCT/CN2019/077067
Authority: WO
Inventors: 李永胜; 王维林; 杨琦; 张凤琴; 张辉; 郑伟
Original assignee: 山东天瑞重工有限公司
Priority date: 2018-03-15
Filing date: 2019-03-06
Publication date: 2019-09-19
Also published as: CN108302048A

Abstract

A magnetic suspension compressor flow regulating device, comprising a volute (1); the volute (1) is provided thereon with a flow regulating mechanism used for controlling the flow of a cold medium. The integration of the flow regulating mechanism and a refrigerant compressor is achieved, and the automatic control and regulation as well as the precise regulation of flow may be achieved, thus the phenomenon of leakage does not occur; the present invention solves the problem wherein the regulation of refrigerant flow in existing refrigerant compressors comprises performing regulation by means of regulating a shut-off valve mounted on a conveying pipe, requiring manual operation, being inconvenient to operate, leaking easily, and being inconvenient for remote control.

Description

Magnetic suspension compressor flow regulating device

The present application claims priority to Chinese Patent Application No. 201101212394.5, entitled "Magnetic Suspension Compressor Flow Regulating Device", filed on March 15, 2018, the entire contents of which is incorporated herein by reference. in.

Technical field

Embodiments of the present invention relate to, but are not limited to, the field of magnetic levitation technology, and in particular, to a magnetic levitation compressor flow regulating device used in a central air conditioner and a large refrigerator.

Background technique

Magnetic Suspension Refrigerant Compressor Working Principle: The magnetic suspension refrigerant compressor discharges the cold medium from the magnetic levitation compressor by high temperature and high pressure, enters the condenser, releases heat to the copper tube cooling water, condenses it into medium temperature and high pressure cold medium liquid, and then passes through the intercepting valve. The pressure is low temperature and low pressure liquid enters the evaporator, absorbs heat from the chilled water flowing through the copper tube in the evaporator casing, is vaporized into low temperature and low pressure gas, and is sucked into the compressor, and is subjected to secondary compression in the compressor to discharge high temperature and high pressure gas. Through this cycle, the purpose of cooling is finally achieved. The characteristics of the magnetic levitation compressor are: energy saving and high efficiency, low running noise and vibration, no lubrication circulation, and no special protection considerations for the grid design.

However, the adjustment of the refrigerant flow rate of the existing refrigerant compressor is adjusted by adjusting the shut-off valve installed on the conveying pipe. This adjustment mode requires manual operation, is inconvenient to operate, is prone to leakage, and is not convenient for remote control. In order to improve the existing deficiencies, it is necessary to develop a new type of adjustment control.

Summary of the invention

In view of the above problems, an object of the present application is to provide a magnetic levitation compressor flow regulating device. Specifically, the present application provides a magnetic levitation compressor flow regulating device that can regulate the flow rate of a cold medium into a compressor.

The application provides a magnetic levitation compressor flow regulating device, comprising a volute and a flow regulating mechanism, the flow regulating mechanism being disposed on the volute, wherein the flow regulating mechanism is configured to control the flow rate of the cold medium.

Wherein, the flow regulating mechanism comprises an air inlet guide vane outer casing, the air intake vane outer casing is connected with the volute casing, and a through hole is arranged in a middle portion of the air intake vane outer casing.

Wherein, a plurality of guide vanes are disposed in the through hole of the intake vane outer casing, and the guide vanes are used for controlling the flow rate of the compressed cold medium.

Wherein, one end of each of the guide vanes is fixedly mounted with a connecting rod, and the connecting rod is used to drive the guide vane to rotate.

Wherein each of the connecting rods is connected to one end of the joint bearing.

Wherein, one end of the joint bearing away from the connecting rod is rotatably connected with the worm wheel.

Wherein, the worm gear is coaxially mounted on the air intake guide vane housing.

Wherein, the worm wheel is connected with a servo motor through a worm drive.

Wherein, the longitudinal section of the air intake guide vane shell is U-shaped.

Wherein each of the guide vanes is a fan-shaped structure.

The beneficial effects of the present application include: the magnetic levitation compressor flow regulating device provided by the present application realizes the integration of the flow regulating mechanism and the refrigerant compressor by setting the flow regulating mechanism, and the adjustment can realize automatic control and precise adjustment of the flow rate. There is no leakage phenomenon, and the adjustment of the refrigerant flow rate of the existing refrigerant compressor is adjusted by adjusting the shut-off valve installed on the conveying pipeline, which requires manual operation, is inconvenient to operate, is prone to leakage, and is not convenient for remote control. The problem.

DRAWINGS

The accompanying drawings, which are incorporated in FIG In the drawings, like reference numerals are used to refer to the like. The drawings in the following description are some embodiments of the present application, and not all embodiments. Other figures may be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic structural view of a magnetic levitation device in an embodiment;

2 is a schematic view showing the structure of a magnetic levitation device in an embodiment.

detailed description

The technical solutions in the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the embodiments of the present invention. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The magnetic levitation compressor flow regulating device according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Embodiments of the present invention provide a magnetic levitation compressor flow regulating device. FIG. 1 and FIG. 2 are schematic structural views of a magnetic levitation compressor flow regulating device according to an embodiment. Referring to FIG. 1 and FIG. The adjusting device comprises a volute 1 , and the volute 1 is provided with a flow regulating mechanism for controlling the flow rate of the cold medium.

The flow regulating mechanism includes an intake guide vane casing 43 having a through hole in the middle and a U-shaped longitudinal section, and the intake vane casing 43 is integrally coupled to the volute 1 by bolts.

The annular array of the inner wall of the inlet guide vane 43 adjacent to the volute 1 has a plurality of guide vanes 3 for controlling the flow rate of the compressed cold medium, and each of the guide vanes 3 has a sector structure, each The guide vanes 3 are rotated to adjust their area along the direction of the wind flow, thereby achieving control of the flow rate of the cold medium.

One end of each of the guide vanes 3 is integrally connected with a rotating shaft in a direction of its rotation axis, and each of the guide vanes 3 is rotatably mounted on the intake vane casing 43 through a corresponding rotating shaft, the intake vane casing 43 is fixedly mounted on the volute 1.

A central aperture W2 is formed between the adjacent two guide vanes 3 and the corresponding inner wall of the inlet guide vane casing 43.

The inner wall of the U-shaped structure on the intake vane casing 43 near the guide vane 3 is the outer circle W1 of the intake vane casing.

Each of the rotating shafts respectively passes through the intake vane shell 43 to a certain distance outside the outer circle W1 of the inlet guide vane outer casing and is fixedly mounted with the connecting rod 31, and each rotating shaft is fixedly connected to the connecting rod 31 respectively. At the position of one end, the rotation of the link 31 drives the guide vane 3 to rotate through the rotating shaft.

The position of the upper end surface of each of the links 31 away from the corresponding rotating shaft is respectively connected to the joint bearing 33 through the hexagon bolt 32, and a hole is formed in each of the joint bearings 33 at a position where the hexagon bolt 32 is engaged.

The axes of each of the hexagon bolts 32 are respectively parallel to the axes of the respective guide vanes 3.

A guide shaft 35 is rotatably connected to a second end of each of the joint bearings 33 away from the connecting rod 31. A hole is also formed in each of the joint bearings 33 at a position matching the corresponding guide shaft 35, and each guide shaft 35 is provided. They are fixedly mounted on the worm disk 38, respectively.

The worm wheel 38 is coaxially mounted on the outer circumference W1 of the intake guide vane casing away from the volute 1. The worm wheel 38 rotates to move the joint bearing 33, and the joint bearing 33 moves to drive the link 31 to rotate.

The annular array on the worm wheel 38 has a plurality of deep groove ball bearings 41 in contact with the outer circle W1 of the inlet guide vane casing, and the outer rings of each deep groove ball bearing 41 are respectively outside the outer casing of the inlet guide vane The circle W1 is in contact with each other, and the axis of each deep groove ball bearing 41 is parallel to the axis of the worm wheel 38, respectively.

Each of the deep groove ball bearings 41 is coaxially mounted with a bearing fixing shaft 42, and one end of each of the bearing fixing shafts 42 is fixedly mounted on the worm disk 38, respectively.

A worm 37 is rotatably coupled to the worm wheel 38. The two ends of the worm 37 are fixedly mounted on the inlet guide vane casing 43 by symmetrically disposed seat bearings 36, respectively.

The worm 37 is connected to the servo motor 40 via a coupling drive. The servo motor 40 is fixedly mounted on the volute 1 and the servo motor 40 is provided with a motor driver 39.

A reducing tube 2 is coaxially fitted to an end of the intake vane housing 43 remote from the volute 1 .

In use, when the flow regulating mechanism is in operation, the worm 37 is driven to rotate by the servo motor 40, the worm 37 drives the turbine disk 38 to rotate, and the turbine disk 38 rotates through the joint bearing 33 to push the link 31 to rotate around the axis of the guide vane 3 while diverting The blade 3 is also rotated such that the guide vanes 3 mounted in the central bore of the inlet guide vane casing 43 are rotated at different angles to adjust the size of the central orifice W2 to adjust the flow rate.

The above description may be implemented individually or in combination in various ways, and these modifications are within the scope of the embodiments of the present invention.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. Furthermore, the terms "comprise," "comprise," or "comprising" or "comprising" or "comprising" or "the" Or it also includes elements that are inherent to such an item or device. An element defined by the phrase "comprising", without further limitation, does not exclude the presence of additional identical elements in the item or device including the element.

The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to be limiting, and the present application is only described in detail with reference to the preferred embodiments. A person skilled in the art should understand that the technical solutions of the present application can be modified or equivalent, without departing from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

Industrial applicability

In the embodiment of the invention, the flow regulating mechanism is realized, the integration of the flow regulating mechanism and the refrigerant compressor is realized, the adjustment can realize the automatic control, the flow rate is precisely adjusted, the leakage phenomenon does not occur, and the existing refrigerant compressor is solved. The adjustment of the cold medium mass flow rate is adjusted by adjusting the shut-off valve installed on the conveying pipe, which requires manual operation, is inconvenient to operate, is prone to leakage, and is inconvenient to realize remote control.

Claims

A magnetic levitation compressor flow regulating device comprising a volute (1) and a flow regulating mechanism, the flow regulating mechanism being disposed on the volute (1), the flow regulating mechanism Control the flow of cold medium.
A magnetic levitation compressor flow regulating device according to claim 1, wherein

The flow regulating mechanism includes an intake vane housing (43), the intake vane housing (43) is coupled to the volute (1), and a through hole is disposed in a middle portion of the intake vane housing (43).
A magnetic levitation compressor flow regulating device according to claim 2, wherein

A plurality of guide vanes (3) are disposed in the through holes of the intake vane casing (43), and the guide vanes (3) are used to control the flow rate of the compressed cold medium.
A magnetic levitation compressor flow regulating device according to claim 3, wherein

One end of each of the guide vanes (3) is fixedly mounted with a connecting rod (31) for driving the guiding vane (3) to rotate.
A magnetic levitation compressor flow regulating device according to claim 4, wherein

Each of the links (31) is coupled to one end of a joint bearing (33).
A magnetic levitation compressor flow regulating device according to claim 5, wherein

One end of the joint bearing (33) remote from the connecting rod (31) is rotatably coupled to the worm wheel (38).
The magnetic levitation compressor flow regulating device according to any one of claims 6 to 6, wherein

The worm gear disc (38) is coaxially mounted on the inlet guide vane housing (43).
A magnetic levitation compressor flow regulating device according to claim 7, wherein

The worm wheel (38) is connected to a servo motor (40) via a worm (37).
A magnetic levitation compressor flow regulating device according to claims 2-8, wherein

The longitudinal direction of the intake vane casing (43) is U-shaped.
The magnetic levitation compressor flow regulating device according to any one of claims 1 to 9, wherein each of said guide vanes (3) has a sector structure.