CN218151492U

CN218151492U - Anti-surge centrifugal air compressor

Info

Publication number: CN218151492U
Application number: CN202222068774.0U
Authority: CN
Inventors: 蒋文彬
Original assignee: Kaili Kairong Glass Co ltd
Current assignee: Kaili Kairong Glass Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2022-12-27
Anticipated expiration: 2032-08-08

Abstract

The utility model discloses an anti-surge centrifugal air compressor, including centrifugal air compressor main part, heat sink and supercharging device, the heat sink passes through supercharging device with the input of centrifugal air compressor main part is connected, the heat sink includes the cooling tube, the cooling tube is columniform double-deck pipe, just the inlayer of double-deck pipe is the heat conductor, the head and the tail both ends of cooling tube be provided with respectively with feed liquor pipe and the drain pipe of the intermediate layer intercommunication of cooling tube, the one end of cooling tube is the blind end, the other one end of cooling tube is for giving vent to anger the end, just give vent to anger the end with centrifugal air compressor main part intercommunication, the cooling tube is close to the intake pipe rather than the inner chamber intercommunication is seted up to the lateral wall of blind end, just the intake pipe with the center pin of cooling tube staggers mutually and to the end direction slope gives vent to anger. This surge-proof centrifugal air compressor can effectually prevent that centrifugal air compressor machine surge phenomenon from taking place to improve the life-span of air compressor machine.

Description

Anti-surge centrifugal air compressor

Technical Field

The utility model relates to a centrifugal air compressor machine, concretely relates to surge-proof centrifugal air compressor machine.

Background

The working principle of the centrifugal air compressor is as follows: when the impeller rotates at high speed, the gas is thrown into the diffuser behind the impeller under the action of centrifugal force, a vacuum zone is formed at the impeller, and at the moment, external fresh gas enters the impeller. The impeller is continuously rotated and gas is continuously sucked and thrown out, thereby maintaining continuous flow of gas.

Surging is a characteristic that a centrifugal air compressor often generates in the using process, and when the centrifugal air compressor generates surging, strong airflow disturbance causes the suspension precision of a rotating shaft to be poor, so that the risk of damaging the centrifugal machine exists under severe conditions. The centrifugal air compressor has many reasons, wherein, the reason is that the air pressure of the inlet air is lower and the temperature of the inlet air is higher, and how to prevent the air pressure of the inlet air from being lower and the temperature of the inlet air from being higher is one of effective ways for preventing the surging phenomenon of the centrifugal air compressor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the to-be-solved technical problem of the utility model is to provide an anti-surge centrifugal air compressor machine can effectually prevent that centrifugal air compressor machine surge phenomenon from taking place to improve air compressor machine's life-span.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides an anti-surge centrifugal air compressor, includes centrifugal air compressor main part, heat sink and supercharging device, the heat sink passes through supercharging device with the input of centrifugal air compressor main part is connected, the heat sink includes the cooling tube, the cooling tube is columniform double-layer tube, just the inlayer of double-layer tube is the heat conductor, the head and the tail both ends of cooling tube be provided with respectively with feed liquor pipe and the drain pipe of the intermediate layer intercommunication of cooling tube, the one end of cooling tube is the blind end, the other one end of cooling tube is for giving vent to anger the end, just give vent to anger the end with centrifugal air compressor main part intercommunication, the cooling tube is close to the lateral wall of blind end sets up the intake pipe rather than the inner chamber intercommunication, just the intake pipe with the center pin of cooling tube is wrong and to the end direction slope of giving vent to anger.

Further, the cooling device further comprises an inner pipe, the inner pipe is inserted into the cooling pipe, a containing cavity is formed between the inner pipe and the inner wall of the cooling pipe, the containing cavity is communicated with the supercharging device, a spirally coiled dividing piece is arranged on the outer wall of the inner pipe, the dividing piece divides the containing cavity into spiral channels, and the air inlet pipe is communicated with the head end of each spiral channel.

Furthermore, a filter screen is arranged in the spiral channel.

Further, the one end of inner tube is provided with the base, the base with the blind end threaded connection of cooling tube.

Further, the inner periphery of the interlayer of the cooling pipe is provided with a plurality of partition plates at intervals, the partition plates are parallel to the central shaft of the cooling pipe, the partition plates divide the interlayer of the double-layer pipe into flow channels which are communicated in sequence, and the liquid inlet pipe and the liquid outlet pipe are communicated with the head end and the tail end of each flow channel respectively.

The utility model has the advantages that:

when the surge-proof centrifugal air compressor is used, the cooling liquid is introduced into the interlayer of the cooling pipe through the liquid inlet pipe, then the gas inlet pipe of the cooling pipe is communicated with an external gas source, gas enters the cooling pipe through the gas inlet pipe, and when the gas flows out of the gas outlet end through the cooling pipe, the gas is cooled through the cooling liquid; in addition, because gas is the spiral forward motion along the inner wall of cooling tube, can also form the stirring effect to the air to make gas mixing, and then make all gas homoenergetic carry out the heat exchange with the coolant liquid, thereby improve the cooling effect.

And then, the cooled gas enters a supercharging device, and finally enters a centrifugal air compressor main body after the supercharging device is supercharged.

By adopting the anti-surge centrifugal air compressor, the gas entering the main body of the centrifugal air compressor can be pressurized and cooled, so that the surge phenomenon of the centrifugal air compressor can be effectively prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. The elements or parts are not necessarily drawn to scale in all figures.

Fig. 1 is a schematic view of an anti-surge centrifugal air compressor according to an embodiment of the present invention;

FIG. 2 is a schematic view of a cooling device in the anti-surge centrifugal air compressor shown in FIG. 1;

FIG. 3 is a schematic view of an inner tube of the surge-proof centrifugal air compressor shown in FIG. 1;

FIG. 4 is a schematic view of the arrangement of a partition plate in a sandwich of the surge-proof centrifugal air compressor shown in FIG. 1;

reference numerals are as follows:

100. a centrifugal air compressor main body; 200. a cooling device; 210. a cooling pipe; 211. an air outlet end; 212. an air inlet pipe; 213. an interlayer; 214. a liquid outlet pipe; 215. a liquid inlet pipe; 220. an inner tube; 221. cutting into pieces; 222. a filter screen; 223. a base; 230. a partition plate; 300. and a supercharging device.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 4, the present invention provides an anti-surge centrifugal air compressor, which includes a centrifugal air compressor main body 100, a cooling device 200 and a supercharging device 300. The cooling device 200 is connected with the input end of the centrifugal air compressor main body 100 through the pressurization device 300, and the cooling device 200 comprises a cooling pipe 210. Cooling tube 210 is columniform double-deck pipe, and the inlayer of double-deck pipe is the heat conductor, and the end to end both ends of cooling tube 210 are provided with feed liquor pipe 215 and drain pipe 214 with the intermediate layer intercommunication of cooling tube 210 respectively. One end of the cooling tube 210 is a closed end, the other end of the cooling tube 210 is an air outlet end 211, the air outlet end 211 is communicated with the centrifugal air compressor main body 100, an air inlet tube 212 communicated with an inner cavity of the cooling tube 210 is arranged on the side wall, close to the closed end, of the cooling tube 210, and the air inlet tube 212 and the cooling tube 210 are staggered and inclined towards the air outlet end 211.

When the cooling device is used, cooling liquid is introduced into the interlayer of the cooling pipe 210 through the liquid inlet pipe 215, then the gas inlet pipe 212 of the cooling pipe 210 is communicated with an external gas source, gas enters the cooling pipe 210 through the gas inlet pipe 212, and when the gas flows out from the gas outlet end 211 through the cooling pipe 210, the gas is cooled through the cooling liquid, meanwhile, as the gas inlet pipe 212 and the central shaft of the cooling pipe 210 are staggered and inclined towards the gas outlet end 211, after the gas enters the cooling pipe 210, the gas can move forwards in a spiral manner along the inner wall of the cooling pipe 210 and finally flows out from the gas outlet end 211, the retention time of the gas in the cooling pipe 210 can be increased, so that the heat exchange time of the gas and the cooling liquid is prolonged, and the cooling effect is improved; in addition, because gaseous spiral forward motion is done along the inner wall of cooling tube 210, can also form the stirring effect to the air to make gas mixing, and then make all gaseous homoenergetic carry out the heat exchange with the coolant liquid, thereby improve the cooling effect.

Subsequently, the cooled gas enters the supercharging device 300, and after supercharging by the supercharging device 300, finally enters the centrifugal air compressor main body 100.

By adopting the anti-surge centrifugal air compressor, the gas entering the centrifugal air compressor main body 100 can be pressurized and cooled, so that the surge phenomenon of the centrifugal air compressor can be effectively prevented.

In a preferred embodiment, the cooling device 200 further includes an inner tube 220. The inner pipe 220 is inserted in the cooling pipe 210. An accommodating cavity is formed between the inner wall of the inner pipe 220 and the inner wall of the cooling pipe 210 and is communicated with the supercharging device 300, a spirally coiled partition piece 221 is arranged on the outer wall of the inner pipe 220, the accommodating cavity is divided into spiral channels by the partition piece 221, and the air inlet pipe 212 is communicated with the head end of each spiral channel.

By means of the inner tube 220 and the partition pieces 221, all the gas can be forced to make a spiral motion, thereby further improving the cooling effect.

In a further embodiment, a filter screen 222 is disposed within the spiral channel. The filter is used for filtering impurities in the air, so that the inner pipe 220 net of the centrifugal air compressor can be effectively prevented from being blocked, and the anti-surge phenomenon can be further prevented. In practical applications, the Filter screen 222 may be a HEPA (High efficiency particulate air Filter) commonly used in the prior art, and the HEPA has a characteristic that air can pass through but fine particles cannot pass through. The HEPA mesh is made up of a continuous stack of sub-fiberglass membranes folded back and forth to form a corrugated mat for housing and supporting the filter media.

In a more preferred embodiment, one end of the inner tube 220 is provided with a base 223. The base 223 is threadedly coupled to the closed end of the cooling tube 210. Through with base 223 and blind end threaded connection, when not using at ordinary times, can dismantle inner tube 220 from cooling tube 210, clean filter screen 222, can improve the filter effect.

In this embodiment, a plurality of partition plates 230 are arranged in the interlayer of the cooling pipe 210 at intervals in the circumferential direction, the partition plates 230 are arranged in parallel with the central axis of the cooling pipe 210, the interlayer of the double-layer pipe is divided into flow channels which are sequentially communicated by the plurality of partition plates 230, and the liquid inlet pipe 215 and the liquid outlet pipe 214 are respectively communicated with the head end and the tail end of each flow channel.

When the cooling liquid flows into the flow channel, the cooling liquid can flow along the flow channel in a roundabout way, so that the cooling time is prolonged, and the cooling effect can be improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included in the scope of the claims and description of the present invention.

Claims

1. The utility model provides an anti-surge centrifugal air compressor, includes centrifugal air compressor main part, heat sink and supercharging device, its characterized in that, the heat sink passes through supercharging device with the input of centrifugal air compressor main part is connected, the heat sink includes the cooling tube, the cooling tube is columniform double-layer tube, just the inlayer of double-layer tube is the heat conductor, the head and the tail both ends of cooling tube be provided with respectively with feed liquor pipe and drain pipe of the intermediate layer intercommunication of cooling tube, the one end of cooling tube is the blind end, the other one end of cooling tube is for giving vent to anger the end, just give vent to anger the end with centrifugal air compressor main part intercommunication, the cooling tube is close to the intake pipe rather than the inner chamber intercommunication is seted up to the lateral wall of blind end, just the intake pipe with the center pin of cooling tube is wrong mutually and to the end direction slope gives vent to anger.

2. The surge-proof centrifugal air compressor as claimed in claim 1, wherein the temperature reducing device further comprises an inner tube, the inner tube is inserted into the temperature reducing tube, a receiving cavity is formed between the inner tube and an inner wall of the temperature reducing tube, the receiving cavity is communicated with the pressure boosting device, a spirally wound dividing piece is arranged on an outer wall of the inner tube, the dividing piece divides the receiving cavity into spiral channels, and the air inlet tube is communicated with a head end of the spiral channel.

3. The surge-preventing centrifugal air compressor as recited in claim 2 wherein a filter screen is disposed within said spiral passage.

4. The surge-preventing centrifugal air compressor as claimed in claim 3, wherein a base is provided at one end of the inner tube, and the base is screw-coupled to the closed end of the cooling tube.

5. The surge-proof centrifugal air compressor as claimed in claim 1, wherein a plurality of partition plates are arranged at intervals in the interlayer of the cooling pipe, the partition plates are parallel to the central axis of the cooling pipe, the partition plates divide the interlayer of the double-layer pipe into flow channels which are sequentially communicated, and the liquid inlet pipe and the liquid outlet pipe are respectively communicated with the head end and the tail end of the flow channels.