CN205423207U - Symmetrical arrangement centrifugal compressor - Google Patents

Abstract

The utility model discloses a symmetrical arrangement centrifugal compressor, including action wheel, follow driving wheel and two coolers, the both sides of action wheel and follow driving wheel all have the gear shaft of outside extension, install the impeller on the gear shaft, the impeller includes impeller hub, impeller hub is last be equipped with a plurality of with impeller hub center be centre of a circle circular arrangement's first blade and second blade, interval arrangement between first blade and the second blade, and a blade length who begins to arrange from first blade of first blade all is lighter than the length of arranging in the second blade at this first blade rear, all is equipped with gas feed and gas outlet on first blade and the second blade, and gas exports through gas feed process impeller inside outflow gas. The utility model discloses with impeller symmetrical arrangement in action wheel both sides to obtain desired tolerance of user and pressure. The utility model discloses increased flow on limited space layout to reduce process time, thereby improved the efficiency of impeller, reduce the processing charges.

Description

Symmetrically arranged centrifugal compressors

technical field

The utility model belongs to the technical field of compressors, in particular to a symmetrically arranged centrifugal compressor.

Background technique

Centrifugal compressors generally use a large gear to drive several pinion shafts. One or both ends of each shaft are equipped with a first-stage impeller. Patent Publication No. CN104847675A discloses a centrifugal compressor, comprising: a casing, on which a first suction port and a first discharge port communicated with each other are formed, and a second suction port and a first discharge port communicated with each other are formed. The second exhaust port, the first exhaust port is selectively communicated with the second suction port; the first compression assembly, the first compression assembly is arranged in the housing and located in the first suction port Between the gas port and the first exhaust port, used to compress the gas flowing into the housing from the first suction port and discharge it through the first exhaust port; the second compression assembly, the The second compression assembly is arranged in the housing and is located between the second suction port and the second exhaust port, for the gas flowing into the housing from the second suction port Compressed and discharged through the second exhaust port; the motor is arranged in the casing and connected with the first compression assembly and the second compression assembly respectively, so as to drive the first compression assembly and/or the second compression assembly; and an adjustment device, the adjustment device is provided between the first suction port and the first compression assembly and/or the second suction port and the between the second compression components. However, this centrifugal compressor is suitable for low-pressure compressors with small flow rates. For large-flow compressors, the centrifugal compressor has limited space, so a larger type of compressor can be used to meet user requirements. Larger types of compressors have larger volumes. The price is high.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a centrifugal compressor with high impeller utilization rate and increased flow in a limited space arrangement to solve this problem.

For this reason, the utility model adopts the following technical solutions: symmetrically arrange the centrifugal compressor, including a driving wheel, a driven wheel and two coolers, the driving wheel and the driven wheel form a conveying rotation circuit through a belt sleeve, and the driving wheel There are gear shafts extending outwards on both sides of the driven wheel and the driven wheel, and the impellers are installed on the gear shafts;

The impeller includes an impeller hub, the impeller hub is provided with a plurality of first blades and second blades arranged around the center of the impeller hub, the first blades and the second blades are arranged at intervals, and the first blades and the second blades are arranged at intervals. The second blades are arranged clockwise or counterclockwise starting from the first blade of the first blade, and the length of the first blade arranged from the first blade of the first blade is shorter than the second blade arranged behind the first blade The length of the first blade and the second blade are provided with a gas inlet and a gas outlet, and the gas flows out of the gas outlet through the gas inlet through the interior of the impeller;

The air outlets of the impellers on the same side of the driving wheel are respectively connected to the air inlets of the coolers, the air outlets of the cooler are connected to the air inlets of the impellers on the other side of the driving wheel, and all the air outlets of the impellers on this side pass through the exhaust The trachea is discharged uniformly.

Using the utility model can achieve the following beneficial effects: the utility model arranges the impellers symmetrically on both sides of the driving wheel, so as to obtain the gas volume and pressure required by the user. The utility model increases the flow rate in a limited space arrangement and reduces the processing time, thereby improving the efficiency of the impeller and reducing the processing cost. The ternary airfoil type provided by the utility model is 20-30% smaller in volume and 20-25% lower in price than the compressor of the first model.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Figure 2 is a schematic structural view of the impeller.

detailed description

Specific embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

Embodiment: As shown in Figures 1 to 2, the utility model includes a driving wheel, a driven wheel and two coolers 1. The driving wheel and the driven wheel form a conveying rotation circuit through a belt suit, and both sides of the driving wheel and the driven wheel are It has a gear shaft extending outward, and the impeller 6 is installed on the gear shaft;

The impeller 6 comprises an impeller hub, and the impeller hub is provided with a plurality of first blades 7 and second blades 8 arranged around the center of the impeller hub, the first blades 7 and the second blades 8 are arranged at intervals, and the first The blades 7 and the second blades 8 are arranged clockwise or counterclockwise starting from the first blade of the first blade 7, and the length of the first blades 7 arranged from the first blade of the first blade 7 is less than that arranged at the first blade. The length of the second blade 8 behind the first blade, the first blade 7 and the second blade 8 are provided with a gas inlet and a gas outlet, and the gas flows out of the gas outlet through the gas inlet through the inside of the impeller;

Wherein the impeller air outlet 2 on the same side of the driving wheel is respectively connected with the air inlet of the cooler. The impeller air inlet 3 is connected, and all the impeller air outlets on this side are uniformly discharged through the exhaust pipe 5.

Further, all the blades are bent into a curved shape.

Preferably, the number of the first blades 7 and the number of the second blades 8 is 6 pieces.

In the utility model, the impellers are symmetrically arranged on both sides of the driving wheel, so as to obtain the gas volume and pressure required by the user. The utility model increases the flow rate in a limited space arrangement and reduces the processing time, thereby improving the efficiency of the impeller and reducing the processing cost. The ternary airfoil type provided by the utility model is 20-30% smaller in volume and 20-25% lower in price than the compressor of the first model.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. Symmetrically arranged centrifugal compressor, characterized in that: the symmetrically arranged centrifugal compressor includes a driving wheel, a driven wheel and two coolers (1), and the driving wheel and driven wheel form a conveying rotation circuit through a belt set , both sides of the driving wheel and the driven wheel have gear shafts extending outward, and the impeller (6) is installed on the gear shaft; The impeller (6) includes an impeller hub, and the impeller hub is provided with a plurality of first blades (7) and second blades (8) arranged around the center of the impeller hub, and the first blades (7) and The second blades (8) are arranged at intervals, the first blades (7) and the second blades (8) are arranged clockwise or counterclockwise starting from the first blade (7) of the first blade (7), starting from the first blade (7) The length of the first blade (7) of the first blade of a blade (7) is less than the length of the second blade (8) arranged behind the first blade, the first blade (7) and the second blade ( 8) There are gas inlets and gas outlets on the top, and the gas flows out of the gas outlet through the gas inlet and through the inside of the impeller; Wherein the impeller air outlet (2) on the same side of the driving wheel is respectively connected to the air inlet of the cooler, the air outlet of the cooler (1) is connected to the impeller air inlet (3) on the other side of the driving wheel, All impeller outlets on this side are discharged uniformly through the exhaust pipe (5). 2. The centrifugal compressor with symmetrical arrangement according to claim 1, characterized in that all the blades are curved to form a curved shape. 3. The centrifugal compressor with symmetrical arrangement according to claim 1, characterized in that: the number of the first blades (7) and the second blades (8) are both 6 pieces.