A vane diffuser for a centrifugal compressor

Abstract

The utility model relates to the technical field of compressors, and in particular to a centrifugal compressor blade diffuser, comprising a main body and a fine-tuning diffuser disassembly assembly, the fine-tuning diffuser disassembly assembly comprising a disassembly plate, a rubber ring and a mounting plate, the disassembly plate is disassembly connected to the main body and is located below the main body, the rubber ring is disassembly connected to the main body and is located below the main body, and the rubber ring is arranged on the outer surface of the disassembly plate, the mounting plate is disassembly connected to the disassembly plate and is located below the disassembly plate, and by replacing the original structure with the fine-tuning diffuser disassembly assembly, the function of fine-tuning the blade body as a whole without disassembling the whole body is given, thereby effectively solving the problem that when it is necessary to change the installation method and the placement position of the outer blade body, the whole body needs to be disassembled, which prolongs the transformation period and reduces the transformation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a blade-type diffuser of a centrifugal compressor. Background Art

[0002] The diffuser is a major component of a centrifugal air compressor and is installed around the impeller of the compressor. The diffuser includes a diffuser disc, which is the base of the diffuser and is installed in the gear cavity of the air compressor. The end face opposite to the air inlet is the air guide face. The diffuser disc has a central circular hole, and a number of diffuser blades are evenly distributed on the circumference of the air guide face of the diffuser disc. A diffuser air duct is formed between adjacent diffuser blades. The diffuser will directly affect the performance of the compressor. The installation angle of the diffuser blades of the diffuser directly affects the pressure ratio and efficiency of the compressor. The conventional approach to changing the pressure ratio and efficiency of the diffuser is to replace the diffuser as a whole, which is not only costly but also has a long processing cycle.

[0003] Prior art, patent number (CN202120937259.4) mentions a split-blade diffuser for a centrifugal compressor including a diffuser disc and diffuser blades, a plurality of diffuser blades being evenly distributed on the circumference of the air guide surface of the diffuser disc, the diffuser disc including a base disc body, the air guide surface of the base disc body fixing the inner disc body, the air guide surface of the base disc body mounting the outer disc body through fasteners, the inner disc body and the outer disc body being concentric with the base disc body, the inner disc body and the outer disc body combining to form a planar disc structure with a central through hole; a plurality of inner disc bodies are evenly distributed on the circumference of the inner disc body, and outer disc bodies corresponding to the inner disc bodies are evenly distributed on the circumference of the outer disc body, the corresponding outer ends of the inner disc bodies are butt-jointed with the inner ends of the outer disc bodies to form the diffuser blades, the diffuser can change the angle of the diffuser blades by replacing some components, with low modification cost, short modification cycle and high efficiency.

[0004] In the prior art, the setting orientation of the clamping disc body and the outer plate body is changed, thereby effectively solving the problem of high cost and long processing cycle when replacing the diffuser. However, when it is necessary to change the installation method and the placement position of the outer plate body, the entire diffuser needs to be disassembled, which will extend the modification cycle and reduce the modification efficiency. Utility Model Content

[0005] The utility model aims to provide a centrifugal compressor blade diffuser, which solves the problem that when the installation method and the placement position of the outer blade body need to be changed, the entire diffuser needs to be disassembled, which prolongs the modification period and reduces the modification efficiency.

[0006] To achieve the above-mentioned purpose, the utility model adopts a centrifugal compressor blade diffuser, including a main body and a fine-tuning diffuser disassembly assembly, the fine-tuning diffuser disassembly assembly includes a disassembly plate, a rubber ring and a mounting plate, the disassembly plate is detachably connected to the main body and is located below the main body, the rubber ring is detachably connected to the main body and is located below the main body, and the rubber ring is arranged on the outer surface of the disassembly plate, and the mounting plate is detachably connected to the disassembly plate and is located below the disassembly plate.

[0007] Among them, the fine-tuning diffuser disassembly assembly also includes a mounting hole and a blade body, the mounting hole is fixedly connected to the mounting plate, the disassembly plate and the main body respectively, and is located inside the mounting plate, the disassembly plate and the main body, and the blade body is arranged inside the mounting hole.

[0008] Among them, the fine-tuning diffuser disassembly assembly also includes a snap-in groove and a snap-in block, the snap-in groove is fixedly connected to the blade body and is located inside the upper end of the blade body, the snap-in block is detachably connected to the snap-in groove and is located inside the snap-in groove, and the snap-in block is detachably connected to the main body and is located inside the main body.

[0009] Among them, the fine-tuning diffuser disassembly assembly also includes a rotation groove and a boost groove, the rotation groove is fixedly connected to the clamping block and is located inside the upper end of the clamping block, and the boost groove is disassembledly connected to the disassembly disk and is located below the inside of the disassembly disk.

[0010] Among them, the centrifugal compressor blade diffuser also includes a fixing ring, a mounting groove and a protective cover, the fixing ring is detachably connected to the main body and is located above the main body, the mounting groove is fixedly connected to the fixing ring and is located above the interior of the fixing ring, the protective cover is slidably connected to the fixing ring and is located above the fixing ring, and the protective cover is arranged inside the mounting groove.

[0011] The utility model discloses a centrifugal compressor blade diffuser, comprising a main body and a fine-tuning diffuser disassembly assembly, wherein the fine-tuning diffuser disassembly assembly comprises a disassembly plate, a rubber ring and a mounting plate, wherein the disassembly plate is disassembly connected to the main body and is located below the main body, the rubber ring is disassembly connected to the main body and is located below the main body, and the rubber ring is arranged on the outer surface of the disassembly plate, and the mounting plate is disassembly connected to the disassembly plate and is located below the disassembly plate. Since the original structure is replaced with the fine-tuning diffuser disassembly assembly, the function of fine-tuning the blade body without disassembling the entire body is given, thereby effectively solving the problem that the entire body needs to be disassembled when the installation method and the placement position of the outer blade body need to be changed, which prolongs the transformation period and reduces the transformation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0014] Figure 2 It is an overall bottom view of the first embodiment of the utility model.

[0015] Figure 3 It is an overall side view of the first embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0017] 101-main body, 102-disassembly plate, 103-rubber pad, 104-installation plate, 105-installation hole, 106-blade body, 107-clamping groove, 108-clamping block, 109-rotation groove, 110-boosting groove, 201-fixing ring, 202-placement groove, 203-protective cover. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] First embodiment

[0020] See also Figure 1 to Figure 3 , Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is a bottom view of the first embodiment of the utility model. Figure 3 It is an overall side view of the first embodiment of the utility model.

[0021] The utility model provides a centrifugal compressor blade diffuser, including a main body 101 and a fine-tuning diffuser disassembly assembly, wherein the fine-tuning diffuser disassembly assembly includes a disassembly plate 102, a rubber ring, a mounting plate 104, a mounting hole 105, a blade body 106, a snap groove 107, a snap block 108, a rotation groove 109 and a supercharging groove 110. The above-mentioned solution solves the problem that when the installation method and the placement position of the outer sheet body need to be changed, the entire body needs to be disassembled, which prolongs the modification cycle and reduces the modification efficiency. It can be understood that the above-mentioned solution can be used when the installation method and the placement position of the outer sheet body need to be changed. When the blade body 106 is adjusted, the rotating groove 109 will be clamped with a flat-blade screwdriver, thereby rotating the locking block 108, thereby driving the blade body 106, thereby effectively adjusting the blade body 106, and at the same time, the rotating groove 109 will effectively display the current rotation angle of the blade body 106 to the staff in real time, thereby retaining the original beneficial effects while actively and effectively solving the problem that when the installation method and the placement position of the outer sheet need to be changed, the whole needs to be disassembled, which will extend the transformation period and reduce the transformation efficiency.

[0022] According to the present specific embodiment, the disassembly disk 102 is detachably connected to the main body 101 and is located below the main body 101, the rubber ring is detachably connected to the main body 101 and is located below the main body 101, and the rubber ring is arranged on the outer surface of the disassembly disk 102, the mounting disk 104 is detachably connected to the disassembly disk 102 and is located below the disassembly disk 102, the disassembly disk 102 is the main functional structural component that gives the whole a freely detachable function, and the rubber ring is the main auxiliary component that protects the main body 101 and the disassembly disk 102.

[0023] Among them, the mounting hole 105 is fixedly connected to the mounting plate 104, the disassembly plate 102 and the main body 101 respectively, and is located inside the mounting plate 104, the disassembly plate 102 and the main body 101. The blade body 106 is arranged inside the mounting hole 105, and the mounting hole 105 is the main place for placing the blade body 106.

[0024] Secondly, the snap-fit ​​groove 107 is fixedly connected to the blade body 106 and is located inside the upper end of the blade body 106, the snap-fit ​​block 108 is detachably connected to the snap-fit ​​groove 107 and is located inside the snap-fit ​​groove 107, and the snap-fit ​​block 108 is detachably connected to the main body 101 and is located inside the main body 101, and the snap-fit ​​groove 107 and the snap-fit ​​block 108 are auxiliary structural components for placing the blade body 106 at a height between the main body 101 and the mounting plate 104.

[0025] At the same time, the rotating groove 109 is fixedly connected to the locking block 108 and is located inside the upper end of the locking block 108. The boosting groove 110 is detachably connected to the disassembly disk 102 and is located below the inside of the disassembly disk 102. The rotating groove 109 is a functional structural cavity that rotates the locking block 108 to drive the blade body 106, thereby effectively adjusting the blade body 106. At the same time, the rotating groove 109 will effectively display the current rotation angle of the blade body 106 to the staff in real time.

[0026] When the blade body 106 needs to be adjusted during use of the utility model, the rotating groove 109 is clamped with a flat-blade screwdriver, thereby rotating the engaging block 108, thereby driving the blade body 106, thereby effectively adjusting the blade body 106, and at the same time the rotating groove 109 will effectively display the current rotation angle of the blade body 106 to the staff in real time, thereby actively and effectively solving the problem of prolonging the transformation period and reducing the transformation efficiency due to the need to disassemble the entire body when changing the installation method and the placement position of the outer sheet body.

[0027] Second embodiment

[0028] See also Figure 4 , Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model.

[0029] On the basis of the first embodiment, a centrifugal compressor blade diffuser of the utility model further includes a fixing ring 201 , a mounting groove 202 and a protection cover 203 .

[0030] According to this specific embodiment, the fixing ring 201 is detachably connected to the main body 101 and is located above the main body 101. The mounting groove 202 is fixedly connected to the fixing ring 201 and is located above the interior of the fixing ring 201. The protective cover 203 is slidably connected to the fixing ring 201 and is located above the fixing ring 201. The protective cover 203 is arranged inside the mounting groove 202. When not in use, the protective cover 203 will effectively protect the top of the main body 101 and the locking block 108. During high-speed operation, since the protective cover 203 is slidably connected to the fixing ring 201, the wear of the protective cover 203 during use will be effectively reduced.

[0031] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A centrifugal compressor vane diffuser, comprising a main body, characterized in that: It also includes a fine-tuning diffuser disassembly assembly, which includes a disassembly plate, a rubber ring and a mounting plate. The disassembly plate is detachably connected to the main body and is located below the main body. The rubber ring is detachably connected to the main body and is located below the main body. The rubber ring is arranged on the outer surface of the disassembly plate. The mounting plate is detachably connected to the disassembly plate and is located below the disassembly plate.

2. The centrifugal compressor vane diffuser according to claim 1, characterized in that: The fine-tuning diffuser disassembly assembly also includes a mounting hole and a blade body. The mounting hole is fixedly connected to the mounting plate, the disassembly plate and the main body respectively and is located inside the mounting plate, the disassembly plate and the main body. The blade body is arranged inside the mounting hole.

3. The centrifugal compressor vane diffuser according to claim 2, characterized in that: The fine-tuning diffuser disassembly assembly also includes a snap-in groove and a snap-in block, wherein the snap-in groove is fixedly connected to the blade body and is located inside the upper end of the blade body, the snap-in block is detachably connected to the snap-in groove and is located inside the snap-in groove, and the snap-in block is detachably connected to the main body and is located inside the main body.

4. The centrifugal compressor vane diffuser according to claim 3, characterized in that: The fine-tuning diffuser disassembly assembly also includes a rotation groove and a boost groove. The rotation groove is fixedly connected to the clamping block and is located inside the upper end of the clamping block. The boost groove is disassembledly connected to the disassembly disk and is located below the inside of the disassembly disk.

5. The centrifugal compressor vane diffuser according to claim 4, characterized in that: The centrifugal compressor blade diffuser also includes a fixing ring, a mounting groove and a protective cover. The fixing ring is detachably connected to the main body and is located above the main body. The mounting groove is fixedly connected to the fixing ring and is located above the interior of the fixing ring. The protective cover is slidably connected to the fixing ring and is located above the fixing ring, and the protective cover is arranged inside the mounting groove.

Images