Air inlet guide vane for compressor

Abstract

The utility model relates to the technical field of air inlet guide vanes, in particular to an air inlet guide vane for a compressor, which comprises a mounting ring and an air inlet guide vane body. Air inlet guide vane bodies are installed in the installation ring at equal intervals in a surrounding mode, a positioning and supporting mechanism is arranged on the side edge of the buffering and protecting mechanism, and a filtering and dust preventing mechanism is arranged on the side edge of the positioning and supporting mechanism. The air inlet guide vane for the compressor has the advantages that when the air inlet guide vane for the compressor is used, the supporting ring is arranged on the side edge of the air inlet guide vane, and the two sets of arc-shaped blocking pieces are arranged at the staggered positions in the supporting ring; by means of the arc-shaped blocking piece, part of airflow cannot directly enter the device through the blocking effect of the arc-shaped blocking piece at the opening and closing moment of the device, the vibration phenomenon caused by airflow influence at the opening and closing moment of the device is effectively relieved on the basis that the airflow interaction amount at the opening and closing moment of the device is reduced, the overall structural design is simple, and the practical effect is good.

Description

Technical Field

[0001] This utility model relates to the field of air intake guide vane technology, and in particular to an air intake guide vane for a compressor. Background Technology

[0002] A compressor is a mechanical device primarily used to compress gas or air to higher pressures for storage, transmission, or use in specific industrial processes. Inlet guide vanes (also known as guide vanes or inlet guide vanes) are components in a gas compressor used to guide and regulate the airflow entering the compressor. They are typically located near the compressor inlet and can optimize compression efficiency and performance by changing the direction and speed of the airflow.

[0003] The patent "CN212838605U" discloses "an inlet guide vane for a centrifugal air compressor". This device uses a dustproof net and a Teflon non-stick layer. The dustproof net can intercept large dust particles from the outside and prevent them from being transported into the compressor by the inlet guide vane. The Teflon non-stick layer can reduce the amount of dust adhering to the fan blades, thereby reducing the frequency of manual cleaning. Because existing compressors experience pressure fluctuations due to sudden changes in gas flow during start-up and shutdown, which can cause vibrations, the above-mentioned device does not address this problem and its overall practical effect is somewhat unsatisfactory. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by proposing an intake guide vane for a compressor. This improves the problem that in existing compressors, pressure fluctuations caused by sudden changes in gas flow during start-up and shutdown can lead to vibrations, which over time can damage the normal operation of the device.

[0005] An intake guide vane for a compressor includes a mounting ring and an intake guide vane body; the intake guide vane body is mounted in a circumferential manner with equal spacing inside the mounting ring.

[0006] A buffer protection mechanism; the buffer protection mechanism includes a first support ring and an arc-shaped baffle. The first support ring is provided on the side of the mounting ring, and the arc-shaped baffle is provided at symmetrically staggered positions on the inner wall of the side of the first support ring.

[0007] The outer side wall of the mounting ring is connected to the first support ring via a flange assembly for installation.

[0008] The buffer protection mechanism is provided with a positioning support mechanism on its side, and the positioning support mechanism is provided with a filter and dust prevention mechanism on its side.

[0009] Preferably, the positioning support mechanism includes a second support ring, a limiting support ring, and a positioning T-block. The second support ring is installed on the outer side wall of the first support ring via a flange assembly. The limiting support ring is slidably installed on the inner side wall of the second support ring. The positioning T-blocks are symmetrically arranged on the outer side wall of the limiting support ring.

[0010] Preferably, the inner side wall of the second support ring is provided with two sets of positioning T-shaped grooves, the positioning T-shaped block and the positioning T-shaped groove are slidably installed, and a support spring is provided between the outer side wall of the positioning T-shaped block and the inner bottom wall of the positioning T-shaped groove.

[0011] Preferably, the dust-proof filtration mechanism includes a filter screen, and the filter screen is disposed inside the limiting support ring.

[0012] Preferably, the filter screen plate has symmetrically arranged positioning blocks on its outer side wall, and the limiting support ring has two sets of positioning slots on its outer side wall, and the positioning blocks and positioning slots are engaged and installed together.

[0013] Preferably, the outer side wall of the positioning block is provided with a first threaded groove, and the outer side wall of the limiting support ring located at the positioning groove is provided with a second threaded groove. The first threaded groove and the second threaded groove are threadedly installed with the fastening bolt.

[0014] Preferably, the filter plate is configured as a porous plate structure.

[0015] The beneficial effects of the utility model are:

[0016] 1. When the intake guide vane for the compressor is in use, the design of setting a support ring on the side of the intake guide vane and setting two sets of arc-shaped baffles at staggered positions inside the support ring allows some airflow to be blocked from directly entering the device at the moment of opening and closing. This reduces the amount of airflow interaction at the moment of opening and closing and effectively mitigates the vibration caused by airflow at the moment of opening and closing. The overall structure design is simple and has good practical effect.

[0017] 2. The intake guide vane for the compressor, through the design of a filter plate at the air intake position using a mechanism, effectively isolates solid particulate impurities entrained in the gas outside the device, thus ensuring the cleanliness of the device's interior and guaranteeing its normal operation. Furthermore, the filter plate is designed for movable installation through the mechanism. When the gas side is severely blocked, the increased negative pressure inside the device will automatically pull it to the inside. With the help of a spring assembly, when the machine is turned off, the reaction force of the spring will cause the filter plate to vibrate momentarily, thereby effectively cleaning the impurities on the side of the filter plate. The overall structure is ingeniously designed and has good practical effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall exploded three-dimensional structure of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the buffer protection mechanism of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the positioning support mechanism of this utility model;

[0022] Figure 5 For the utility model Figure 4 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0023] Figure 6 This is a three-dimensional structural diagram of the dustproof filter mechanism of this utility model;

[0024] Figure 7 For the utility model Figure 6 The enlarged schematic diagram of the three-dimensional structure at point B in the middle.

[0025] In the diagram: 1. Mounting ring; 2. Inlet guide vane body; 3. Buffer protection mechanism; 301. First support ring; 302. Arc-shaped baffle; 4. Positioning support mechanism; 401. Second support ring; 402. Limiting support ring; 403. Positioning T-block; 404. Positioning T-slot; 405. Support spring; 5. Filter dustproof mechanism; 501. Filter screen; 502. Positioning block; 503. Positioning slot; 504. First threaded groove; 505. Second threaded groove; 506. Fastening bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] Please see Figure 1-7 The present invention provides an intake guide vane for a compressor, including an mounting ring 1 and an intake guide vane body 2; the intake guide vane body 2 is installed in a circumferential manner with equal spacing inside the mounting ring 1.

[0029] Please see Figure 1 , Figure 2 , Figure 3 The buffer protection mechanism 3 includes a first support ring 301 and an arc-shaped baffle 302. The first support ring 301 is provided on the side of the mounting ring 1, and the arc-shaped baffle 302 is provided at symmetrically staggered positions on the inner side wall of the first support ring 301.

[0030] The outer side wall of the mounting ring 1 is connected to the first support ring 301 via a flange assembly for installation.

[0031] The side of the buffer protection mechanism 3 is provided with a positioning support mechanism 4, and the side of the positioning support mechanism 4 is provided with a filter dustproof mechanism 5.

[0032] Specifically, the first support ring 301 here serves to position and install the arc-shaped baffle 302. The arc-shaped baffle 302 prevents some gas from directly entering the device during opening and closing by blocking the gas. This effectively reduces the vibration caused by the airflow impact during opening and closing.

[0033] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 The positioning support mechanism 4 includes a second support ring 401, a limiting support ring 402, and a positioning T-block 403. The second support ring 401 is installed on the outer side wall of the first support ring 301 by connecting it with a flange assembly. The limiting support ring 402 is slidably installed on the inner side wall of the second support ring 401. The positioning T-block 403 is symmetrically arranged on the outer side wall of the limiting support ring 402.

[0034] The inner side wall of the second support ring 401 is provided with two sets of positioning T-shaped grooves 404. The positioning T-shaped block 403 and the positioning T-shaped groove 404 are slidably installed. A support spring 405 is provided between the outer side wall of the positioning T-shaped block 403 and the inner bottom wall of the positioning T-shaped groove 404.

[0035] Specifically, when the filter screen 501 is severely clogged with dust on its side, the negative pressure of the device will automatically pull the filter screen 501, along with the limiting support ring 402, into the device. The movement of the limiting support ring 402 will then automatically drive the positioning T-block 403 to slide inside the positioning T-groove 404. At this time, the support spring 405 will be compressed by the positioning T-block 403. When the device is closed and the suction effect fails, the reaction force generated by the compression of the support spring 405 will automatically push the limiting support ring 402 to move in the opposite direction. As the limiting support ring 402 moves in the opposite direction, the resonance effect generated by the rebound of the support spring 405 will automatically shake off some of the dust accumulated on the side of the filter screen 501, thereby achieving the effect of automatic dust removal.

[0036] Please see Figure 1 , Figure 2 , Figure 6 , Figure 7 The dust filtering mechanism 5 includes a filter screen 501, and the filter screen 501 is provided inside the limiting support ring 402;

[0037] The filter plate 501 has symmetrically arranged positioning blocks 502 on its outer side wall, and the limiting support ring 402 has two sets of positioning slots 503 on its outer side wall. The positioning blocks 502 and the positioning slots 503 are engaged and installed together.

[0038] The outer side wall of the positioning block 502 is provided with a first threaded groove 504, and the outer side wall of the limiting support ring 402 located at the positioning groove 503 is provided with a second threaded groove 505. The first threaded groove 504 and the second threaded groove 505 are threadedly installed with the fastening bolt 506.

[0039] Filter plate 501 is configured as a porous plate structure;

[0040] Specifically, when the filter plate 501 needs to be removed from the side of the limiting support ring 402 for cleaning, simply unscrew the fastening bolt 506 completely from the inside of the first threaded groove 504, thereby changing the positioning block 502 from the locked state to the movable state. Then, simply remove the filter plate 501 together with the positioning block 502 from the side of the limiting support ring 402. When reinstalling after cleaning, first adjust the filter plate 501 to a suitable position and then push the positioning T-shaped block 403 on its side into the corresponding positioning T-shaped groove 404. When the positioning T-shaped block 403 moves to the bottom of the positioning T-shaped groove 404, the first threaded groove 504 and the second threaded groove 505 are in a corresponding fit. Then, simply pass the fastening bolt 506 through the first threaded groove 504 and screw it to the bottom of the second threaded groove 505 to complete the installation.

[0041] Working principle: The first support ring 301 here plays a positioning and installation role for the arc-shaped baffle 302. The arc-shaped baffle 302 makes the device open and close by blocking some gas and preventing it from directly entering the device, thus effectively reducing the vibration problem caused by the airflow impact when the device is opened and closed.

[0042] When the filter screen 501 is severely clogged with dust on its side, the negative pressure of the device will automatically pull the filter screen 501 and the limiting support ring 402 into the device. The movement of the limiting support ring 402 will automatically drive the positioning T-block 403 to slide inside the positioning T-groove 404. At this time, the support spring 405 is compressed by the positioning T-block 403. When the device is closed and the suction effect fails, the reaction force generated by the compression of the support spring 405 will automatically push the limiting support ring 402 to move in the opposite direction. As the limiting support ring 402 moves in the opposite direction and the resonance generated by the rebound of the support spring 405, some of the dust on the side of the filter screen 501 will be shaken off, thereby achieving the effect of automatic dust removal.

[0043] When the filter plate 501 needs to be removed from the side of the limiting support ring 402 for cleaning, simply unscrew the fastening bolt 506 completely from the inside of the first threaded groove 504, thereby changing the positioning block 502 from the locked state to the movable state. Then, simply remove the filter plate 501 together with the positioning block 502 from the side of the limiting support ring 402. When reinstalling after cleaning, first adjust the filter plate 501 to a suitable position and then push the positioning T-shaped block 403 on its side into the corresponding positioning T-shaped groove 404. When the positioning T-shaped block 403 moves to the bottom of the positioning T-shaped groove 404, the first threaded groove 504 and the second threaded groove 505 are in a corresponding fit. Then, simply pass the fastening bolt 506 through the first threaded groove 504 and screw it to the bottom of the second threaded groove 505 to complete the installation.

[0044] It should be noted that the aforementioned mounting ring 1, first support ring 301 and second support ring 401 are all installed via flange assembly. The specific flange docking installation method shall be operated in accordance with existing operating techniques. At the same time, the installation of the entire device to the side of the compressor shall be operated in accordance with existing operating standards. These are all existing conventional operating techniques and will not be described in detail here.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An inlet guide vane for a compressor, characterized in that, include Mounting ring (1) and intake guide vane body (2); the intake guide vane body (2) is installed in a circumferential manner with equal spacing inside the mounting ring (1); Buffer protection mechanism (3); The buffer protection mechanism (3) includes a first support ring (301) and an arc-shaped baffle (302). The first support ring (301) is provided on the side of the mounting ring (1), and the arc-shaped baffle (302) is provided at symmetrically staggered positions on the inner wall of the side of the first support ring (301). The outer side wall of the mounting ring (1) is connected to the first support ring (301) through a flange assembly; The buffer protection mechanism (3) is provided with a positioning support mechanism (4) on its side, and the positioning support mechanism (4) is provided with a filter dustproof mechanism (5) on its side.

2. The inlet guide vane for a compressor according to claim 1, characterized in that: The positioning support mechanism (4) includes a second support ring (401), a limiting support ring (402), and a positioning T-block (403). The second support ring (401) is installed on the outer side wall of the first support ring (301) by connecting with a flange assembly. The limiting support ring (402) is slidably installed on the inner side wall of the second support ring (401). The positioning T-block (403) is symmetrically arranged on the outer side wall of the limiting support ring (402).

3. The inlet guide vane for a compressor according to claim 2, characterized in that: The inner side wall of the second support ring (401) is provided with two sets of positioning T-shaped grooves (404). The positioning T-shaped block (403) and the positioning T-shaped groove (404) are slidably installed. A support spring (405) is provided between the outer side wall of the positioning T-shaped block (403) and the inner bottom wall of the positioning T-shaped groove (404).

4. An inlet guide vane for a compressor according to claim 2, characterized in that: The dust filtering mechanism (5) includes a filter plate (501), and the filter plate (501) is provided inside the limiting support ring (402).

5. An inlet guide vane for a compressor according to claim 4, characterized in that: The filter plate (501) has symmetrically arranged positioning blocks (502) on its outer side wall, and the limiting support ring (402) has two sets of positioning slots (503) on its outer side wall. The positioning blocks (502) and the positioning slots (503) are engaged and installed together.

6. An inlet guide vane for a compressor according to claim 5, characterized in that: The positioning block (502) has a first threaded groove (504) through the outer wall of its side, and the limiting support ring (402) has a second threaded groove (505) corresponding to the outer wall of its side at the position of the positioning groove (503). The first threaded groove (504) and the second threaded groove (505) are threadedly installed with the fastening bolt (506).

7. An inlet guide vane for a compressor according to claim 6, characterized in that: The filter plate (501) is configured as a porous plate structure.

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