CN218717721U

CN218717721U - Inlet guide vane adjusting mechanism of compressor for compressed gas energy storage

Info

Publication number: CN218717721U
Application number: CN202222693278.4U
Authority: CN
Inventors: 陶功新; 杨志; 覃小文; 范小平; 王高亮; 王鑫; 翟璇; 罗方; 王松; 王姗; 赵先波; 范立华; 唐军; 侯俊鹏; 靳亚峰; 陈志坤; 王娟丽; 李娟�
Original assignee: DEC Dongfang Turbine Co Ltd
Current assignee: DEC Dongfang Turbine Co Ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-03-24
Anticipated expiration: 2032-10-12

Abstract

The utility model discloses a compressed gas is stator adjustment mechanism that admits air of compressor for energy storage, including adjustable stator, drive assembly, crank, hinge subassembly, round pin axle subassembly and the carousel of rotation setting. The adjusting mechanism of the utility model is arranged outside the cylinder inlet cylinder, when the unit is needed, the turntable is driven by the servomotor, and the turntable drives the inlet guide vane to rotate by the hinge and the crank, thereby realizing the adjustment of the air input and the air inlet angle required by the unit operation; the inner and outer sealing of the cylinder is realized by adding sealing rings on a rotating shaft of a guide vane and a guide vane shaft sleeve; the guide vane angle measurement is realized by adding a pointer and a dial on the guide vane and a guide vane shaft sleeve.

Description

Inlet guide vane adjusting mechanism of compressor for compressed gas energy storage

Technical Field

The utility model relates to a compressor technical field specifically is a stator guiding vane adjustment mechanism admits air of compressor for compressed gas energy storage.

Background

The inlet guide vane adjusting mechanism (IGV) changes the inlet airflow angle of the impeller through the rotation of the inlet guide vane blade, so as to achieve the purpose of changing the energy head of unit gas and further adjusting the performance curve of the compressor.

When the operating conditions of the compressor change, such as one or more of intake pressure, exhaust temperature, exhaust pressure or exhaust volume changes, other parameters also change correspondingly so as to destroy the coordination balance relationship among the stages of the compressor until new balance is established, namely the compressor works under variable working conditions, so that the intake air quantity of the compressor needs to be adjusted to be suitable. Compressor efficiency is also reduced when the inlet airflow of the compressor fluctuates, resulting in poor inlet angles or turbulence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compressed gas is stator adjustment mechanism that admits air of compressor for energy storage for solve above-mentioned technical problem.

The purpose of the utility model can be realized by the following technical scheme:

a gas inlet guide vane adjusting mechanism of a compressor for compressed gas energy storage comprises an adjustable guide vane, a driving assembly, a crank, a hinge assembly, a pin shaft assembly and a turnplate which is rotationally arranged;

the output end of the driving assembly is connected with the rotary table, second pull rods are distributed on the rotary table in an annular array mode, one end of each second pull rod is installed on the rotary table through the pin shaft assembly, the other end of each second pull rod is connected with the crank through the hinge assembly, the second pull rods are rotatably connected with the pin shaft assemblies, the second pull rods are rotatably connected with the hinge assemblies, one end of each crank is rotatably connected with the hinge assemblies, the other end of each crank is rotatably connected with the adjustable guide vane, and the adjustable guide vane rotates on an air inlet cylinder of the compressor.

Preferably, the drive assembly comprises a first draw bar and a servomotor; the rotary table is rotatably installed in the compressor, a connecting block is arranged on the outer edge of the rotary table, one end of the first pull rod is rotatably connected with an output shaft of the servomotor, and the other end of the first pull rod is rotatably connected with the connecting block.

Preferably, the adjusting mechanism further comprises an actuator support, the servomotor is mounted at one end of the actuator support, the first pull rod is arranged in the actuator support, a limiting hole is formed below the actuator support in a communicating mode, and the connecting block slides in the limiting hole.

Preferably, the rotary connection part of the adjustable guide vane and the air inlet cylinder of the compressor is provided with a guide vane shaft sleeve, and the adjustable guide vane is in running fit with the guide vane shaft sleeve.

Preferably, the guide vane shaft sleeve is fixed on an inlet cylinder of the compressor through a bolt.

Preferably, the adjustable guide vane comprises a rotating shaft and guide vanes arranged in an inclined manner, the rotating shaft of the adjustable guide vane is in running fit with the guide vane shaft sleeve, and the guide vanes arranged in the inclined manner are located in an air inlet of an air inlet cylinder of the compressor.

Preferably, a guide vane shaft clamp is arranged on a rotating shaft of the adjustable guide vane, and the crank is located between the guide vane shaft sleeve and the guide vane shaft clamp.

Preferably, at least one sealing element is arranged at the matching clearance between the guide vane shaft sleeve and an inlet cylinder of the compressor.

Preferably, at least one sealing element is arranged at the matching gap between the guide vane shaft sleeve and the adjustable guide vane.

Preferably, the pivot tip of adjustable stator sets up the pointer, be provided with the calibrated scale on the stator shaft sleeve, the scale face of calibrated scale with pointer parallel arrangement.

The utility model has the advantages that:

1. the adjusting mechanism of the utility model is arranged outside the cylinder inlet cylinder, when the unit is needed, the turntable is driven by the servomotor, and the turntable drives the inlet guide vane to rotate by the hinge and the crank, thereby realizing the adjustment of the air input and the air inlet angle required by the unit operation;

2. the utility model adopts the mode of adding the sealing ring on the rotating shaft of the guide vane and the guide vane shaft sleeve to realize the internal and external sealing of the cylinder;

3. the utility model discloses an increase pointer and calibrated scale on stator and guide vane axle sleeve, realize the measurement to the stator angle.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

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

FIG. 3 is an enlarged schematic view of the structure of the present invention at A in FIG. 2;

fig. 4 is a schematic view of the transmission connection between the adjustable guide vane and the rotary table of the present invention.

In the figure: 1. adjustable guide vanes; 2. a seal member; 3. a guide vane shaft sleeve; 4. a dial scale; 5. a pointer; 6. a guide vane shaft clamp; 7. a crank; 8. a hinge assembly; 9. a pin assembly; 10. a turntable; 11. a first pull rod; 12. an actuator support; 13. a servomotor; 14. a second pull rod; 101. connecting blocks; 121. and a limiting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 3, an embodiment of the present invention provides an inlet guide vane adjusting mechanism of a compressor for storing energy of compressed gas, including an adjustable guide vane 1, a sealing element 2, a guide vane shaft sleeve 3, a dial 4, a pointer 5, a guide vane shaft clamp 6, a crank 7, a hinge assembly 8, a pin shaft assembly 9, a rotary table 10, a first pull rod 11, an actuator bracket 12, an oil-operated machine 13, and a second pull rod 14;

adjustable stator 1 comprises pivot and the guide vane that the slope set up, the one end at executor support 12 is installed to servomotor 13, first pull rod 11 is in executor support 12, the below intercommunication of executor support 12 is provided with spacing hole 121, carousel 10 rotates and installs on the compressor, the outward flange of carousel 10 is provided with connecting block 101, connecting block 101 and carousel 10 are integrated into one piece, the one end of first pull rod 11 is connected with the output shaft rotation of servomotor 13, the other end of first pull rod 11 rotates with connecting block 101 on carousel 10 and is connected, connecting block 101 slides in spacing hole 121, be used for axial spacing when rotating carousel 10, during operation the output of servomotor 13 promotes first pull rod 11, first pull rod 11 promotes connecting block 101 and rotates, and then drive carousel 10 rotates, the embodiment of the utility model provides an extension and retraction through the output shaft of servomotor 13, can effectual control carousel 10 clockwise rotation or anticlockwise rotation, thereby the subassembly that controls adjustable stator 1 installed on carousel 10 carries out the adaptability and rotates, reach the aperture size of control air inlet cylinder mouth, thereby control the air input, automatic control, be convenient for control and adjust.

Second pull rods 14 are distributed on the rotary table 10 in an annular array manner, one ends of the second pull rods 14 are mounted on the rotary table 10 through pin shaft assemblies 9, the other ends of the second pull rods 14 are connected with the crank 7 through hinge assemblies 8, shaft holes (namely shaft holes connected with the pin shaft assemblies 9) at one ends of the second pull rods 14 distributed in an annular array manner are located on the same outer diameter circle with the same axis of the rotary table 10, the second pull rods 14 are rotatably connected with the pin shaft assemblies 9, the second pull rods 14 are rotatably connected with the hinge assemblies 8, as shown in fig. 4, one ends of the crank 7 are rotatably connected with the hinge assemblies 8, the other ends of the crank 7 are rotatably connected with the adjustable guide vanes 1, the adjustable guide vanes 1 are rotatably arranged on an air inlet cylinder of the compressor, the rotary table 10 rotates to drive the second pull rods 14 to rotate, the second pull rods 14 further drive the crank 7 to rotate through the hinge assemblies 8, the adjustable guide vanes 1 connected with the crank 7 rotate around the axis of the crank, so as to adjust the inclination angles of the guide vanes on the adjustable guide vanes 1, gaps between the adjacent guide vanes distributed in an array manner are reduced or increased, and the air inflow is controlled.

In the rotation process of the adjustable guide vane 1 and the air inlet cylinder of the compressor, the risk of oil leakage or air leakage exists, in the embodiment of the utility model, a guide vane shaft sleeve 3 is arranged at the rotation connection part of the adjustable guide vane 1 and the air inlet cylinder of the compressor, the guide vane shaft sleeve 3 is fixedly installed through bolts,

the pivot and the stator axle sleeve 3 normal running fit of adjustable stator 1, the guide vane that the slope set up is in the air inlet of the air inlet cylinder of compressor, and setting up through stator axle sleeve 3 can effectual reduction friction, improves the life of adjustable stator 1. The crank 7 is arranged at one end of the guide vane shaft sleeve 3 and is limited by the guide vane shaft clamp 6, so that the problem that the crank 7 falls off when in work is avoided.

At least one sealing element 2 is arranged at the matching clearance between the guide vane shaft sleeve 3 and the air inlet cylinder of the compressor, at least one sealing element 2 is arranged at the matching clearance between the guide vane shaft sleeve 3 and the adjustable guide vane 1, the arrangement of the sealing element 2 can effectively reduce the gas entering from the air inlet cylinder opening of the compressor into the I GV transmission assembly side, and meanwhile, various types of oil at the IGV transmission side can be effectively prevented from entering the air inlet cylinder opening, so that good sealing performance is kept.

In order to observe the rotation angle (influencing the opening degree of an air inlet cylinder port) of the adjustable guide vane 1 more intuitively, a pointer 5 is arranged at the end part of a rotating shaft of the adjustable guide vane 1, a dial 4 is arranged on a guide vane shaft sleeve 3 (scale values can be directly read from the outside of a compressor), a scale surface of the dial 4 is arranged in parallel with the pointer 5, it needs to be described that the dial 4 can also be connected to other parts fixedly connected with the guide vane shaft sleeve 3, after the adjustable guide vane 1 rotates, the pointer 5 rotates along with the same angle, further deflection is formed on the dial 4, the initial deflection value is subtracted from the final deflection value of the dial 4 to obtain the rotation angle of the adjustable guide vane 1, the opening degree of the air inlet cylinder can be obtained according to the opening degree relation corresponding to the rotation angle, and therefore the air inlet amount can be estimated.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A gas inlet guide vane adjusting mechanism of a compressor for compressed gas energy storage is characterized by comprising an adjustable guide vane (1), a driving assembly, a crank (7), a hinge assembly (8), a pin shaft assembly (9) and a turnplate (10) which is rotationally arranged;

the output end of the driving assembly is connected with the rotary table (10), second pull rods (14) are distributed on the rotary table (10) in an annular array mode, one ends of the second pull rods (14) are installed on the rotary table (10) through the pin shaft assemblies (9), the other ends of the second pull rods (14) are connected with the crank (7) through the hinge assemblies (8), the second pull rods (14) are rotatably connected with the pin shaft assemblies (9), the second pull rods (14) are rotatably connected with the hinge assemblies (8), one ends of the crank (7) are rotatably connected with the hinge assemblies (8), the other ends of the crank (7) are rotatably connected with the adjustable guide vanes (1), and the adjustable guide vanes (1) rotate on an air inlet cylinder of the compressor.

2. A mechanism for adjusting the inlet guide vanes of a compressor for storing energy of compressed gas according to claim 1, characterized in that said driving assembly comprises a first tie rod (11) and an oil motor (13); the rotary table is characterized in that the rotary table (10) is rotatably installed in the compressor, a connecting block (101) is arranged on the outer edge of the rotary table (10), one end of a first pull rod (11) is rotatably connected with an output shaft of the servomotor (13), and the other end of the first pull rod (11) is rotatably connected with the connecting block (101).

3. The inlet guide vane adjusting mechanism of a compressed gas energy storage compressor as claimed in claim 2, characterized in that the adjusting mechanism further comprises an actuator bracket (12), the oil-operated machine (13) is installed at one end of the actuator bracket (12), the first pull rod (11) is arranged in the actuator bracket (12), a limiting hole (121) is arranged below the actuator bracket (12) in a communicating manner, and the connecting block (101) slides in the limiting hole (121).

4. The inlet guide vane adjusting mechanism of a compressor for storing energy of compressed gas as claimed in claim 1, wherein a guide vane shaft sleeve (3) is disposed at a rotational connection between the adjustable guide vane (1) and an inlet cylinder of the compressor, and the adjustable guide vane (1) is rotationally matched with the guide vane shaft sleeve (3).

5. A guide vane inlet regulating mechanism of a compressor for compressed gas energy storage according to claim 4, characterized in that the guide vane shaft sleeve (3) is fixed on the inlet cylinder of the compressor by bolts.

6. The inlet guide vane adjusting mechanism of a compressor for compressed gas energy storage according to claim 4, wherein the adjustable guide vane (1) comprises a rotating shaft and an inclined guide vane, the rotating shaft of the adjustable guide vane (1) is rotatably matched with the guide vane shaft sleeve (3), and the inclined guide vane is located in an air inlet of an inlet cylinder of the compressor.

7. The inlet guide vane adjusting mechanism of a compressor for storing energy of compressed gas as claimed in claim 4, wherein a guide vane shaft clamp (6) is arranged on a rotating shaft of the adjustable guide vane (1), and the crank (7) is located between the guide vane shaft sleeve (3) and the guide vane shaft clamp (6).

8. A guide vane inlet regulating mechanism of a compressor for compressed gas energy storage according to any of claims 4-7, characterized in that at least one sealing element (2) is arranged at the matching clearance of the guide vane shaft sleeve (3) and the inlet cylinder of the compressor.

9. A guide vane adjusting mechanism for a compressor used in compressed gas energy storage according to any of claims 4-7, characterized in that at least one sealing member (2) is provided at the fitting clearance of the guide vane shaft sleeve (3) and the adjustable guide vane (1).

10. The inlet guide vane adjusting mechanism of a compressor for storing energy of compressed gas according to any one of claims 4-7, wherein a pointer (5) is disposed at the end of the rotating shaft of the adjustable guide vane (1), a dial (4) is disposed on the guide vane shaft sleeve (3), and the scale surface of the dial (4) is disposed in parallel with the pointer (5).