CN216430068U - Communicating pipe structure, multistage compressor and air conditioner - Google Patents

Abstract

The utility model discloses a communicating pipe structure, multistage compressor and air conditioner, communicating pipe structure includes: and the communicating pipe is connected with the upper and lower compressors, at least one cooling liquid channel is arranged between the inner wall and the outer wall of the communicating pipe, and the outer wall is provided with a first heat dissipation structure. The utility model provides a communicating pipe structure adds the coolant liquid passageway between communicating pipe inner wall and outer wall and is used for leading to the coolant liquid and reduces high-pressure gas's temperature, and arrange the heat transfer area of radiating fin increase communicating pipe on the outer wall of communicating pipe, further reduce high-pressure gas's temperature, and be provided with the wind-force size that temperature sensor detected actual exhaust temperature and come control fan in the exit of communicating pipe, play whole cooling system to communicating pipe, to reducing compressor exhaust temperature, improve compressor operation efficiency, ensure that compressor operational reliability and life have great meaning.

Description

Communicating pipe structure, multistage compressor and air conditioner

Technical Field

The utility model relates to a compressor heat dissipation field especially relates to a communicating pipe structure, multistage compressor and air conditioner.

Background

At present, in industry, high pressure gas is used in various fields, such as military and civil life fields of machinery, medical treatment, electronics, chemical industry, petroleum and the like, and in order to obtain the high pressure gas, a multi-stage compressor is often adopted to compress the gas and gradually increase the pressure of the gas. In the case of a centrifugal compressor, the pressure and temperature of the gas in the compressor are raised after each compression of the gas, and an excessively high gas temperature leads to an excessively high discharge temperature of the compressor, which tends to shorten the service life of the compressor. Controlling the discharge temperature of the compressor to within a reasonable range is an important task in the development of compressors.

In the case of a centrifugal compressor, it is currently common to cool the gas to a temperature close to the original temperature by means of a heat exchanger, and then to perform secondary compression, and as the required pressure increases, the number of stages of the compressor increases. The existing heat exchanger mainly comprises an air cooling type and a water cooling type, wherein the air cooling type is that a plurality of fins are combined on a heat dissipation plate, the fins are used for expanding the area of the heat dissipation plate contacting with air, and therefore the heat of the heat dissipation plate is dissipated and exchanged into the air, and the cooling effect of heat exchange is achieved; the water cooling type is to inject a working fluid having a cooling effect, such as water or a refrigerant, into the heat dissipation plate or the heat pipe, and to take out heat of the heat dissipation plate or the heat dissipation pipe by the working fluid flowing through the heat dissipation plate or the heat dissipation pipe in a manner of contacting the inner wall, thereby achieving a heat dissipation effect. However, the heat exchange effect of the conventional air-cooled heat exchanger is inferior to that of the water-cooled heat exchanger, and the water-cooled heat exchanger only contacts with the heat dissipation plate or the wall surface inside the heat dissipation pipe when the working fluid flows, so the area of contact conduction flow cannot be effectively increased, and the heat dissipation effect of the heat exchange cannot be effectively further improved. In addition, most of the heat exchangers in the prior art are closed heat exchangers, high-temperature gas must exchange heat with an external cooling medium (air, water, or the like) through a pipe wall or a fin of a heat exchange pipeline, and for a multi-stage compressor, the low heat exchange rate of a heat exchange device increases the heat exchange area or cannot reduce the suction temperature of a secondary compressor, so that the compression efficiency of the compressor is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the too high technical problem of exhaust temperature of above-mentioned prior art compressor, provide a communicating pipe structure, multistage compressor and air conditioner.

The utility model adopts the technical proposal that:

the utility model provides a communicating pipe structure, multistage compressor and air conditioner, the communicating pipe structure includes: the compressor comprises a communicating pipe for connecting the upper and lower compressors, at least one cooling liquid channel is arranged between the inner wall and the outer wall of the communicating pipe, and a first heat dissipation structure is arranged on the outer wall.

In one embodiment, the inlet and the outlet of the coolant passage are respectively disposed at both ends of the communication pipe.

In an embodiment, the communicating pipe is provided with a plurality of straight cylindrical cooling liquid channels, and the cooling liquid channels are uniformly arranged along the circumferential direction of the communicating pipe at intervals.

In one embodiment, the first heat dissipation structure includes a plurality of heat dissipation fins.

In one embodiment, each of the heat dissipation fins extends from the inlet of the communication pipe to the outlet of the communication pipe, and the heat dissipation fins are arranged at even intervals in the circumferential direction of the communication pipe.

Furthermore, a second heat dissipation structure is further arranged on the outer wall.

In an embodiment, the second heat dissipation structure includes a fan and a bracket disposed on the outer wall for mounting the fan, and the air outlet of the fan faces the outer wall.

Furthermore, the outlet end of the communicating pipe is provided with a temperature sensor, and the temperature sensor is arranged on the inner wall.

A multistage compressor using the above-described communication pipe structure.

Air conditioner, use the above multistage compressor.

Compared with the prior art, the utility model provides a communicating pipe structure adds the coolant liquid passageway between communicating pipe inner wall and outer wall and is used for leading to the coolant liquid and reduce high-pressure gas's temperature, and arrange the heat transfer area of radiating fin increase communicating pipe on the outer wall of communicating pipe, further reduce high-pressure gas's temperature, and be provided with the wind-force size that temperature sensor detected actual exhaust temperature and come control fan in the exit of communicating pipe, play whole cooling system communicating pipe, to reducing compressor exhaust temperature, improve compressor operation efficiency, ensure that compressor operational reliability and life have great meaning.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural view of a communication pipe structure in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a communication tube structure according to an embodiment of the present invention;

1. a communicating pipe; 2. a coolant passage; 3. a heat dissipating fin; 4. a support; 5. a fan; 6. and a temperature sensor.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

High-pressure gas is used in various fields, such as military and civil life fields of machinery, medical treatment, electronics, chemical industry, petroleum and the like, and in order to obtain the high-pressure gas, a multi-stage compressor is often adopted to compress the gas and gradually increase the pressure of the gas. In the case of a centrifugal compressor, the pressure and temperature of the gas in the compressor are raised after each compression of the gas, and an excessively high gas temperature leads to an excessively high discharge temperature of the compressor, which tends to shorten the service life of the compressor. Controlling the discharge temperature of the compressor to within a reasonable range is an important task in the development of compressors. In the case of a centrifugal compressor, it is currently common to cool the gas to a temperature close to the original temperature by means of a heat exchanger, and then to perform secondary compression, and as the required pressure increases, the number of stages of the compressor increases. However, the heat exchange effect of the conventional air-cooled heat exchanger is inferior to that of the water-cooled heat exchanger, and the water-cooled heat exchanger only contacts with the heat dissipation plate or the wall surface of the inner side of the heat dissipation pipe when the working fluid flows, so the area of the contact conduction flow cannot be effectively increased, and the heat dissipation effect of the heat exchange cannot be effectively improved. In addition, most of the heat exchangers in the prior art are closed heat exchangers, high-temperature gas must exchange heat with an external cooling medium (air, water, or the like) through a tube wall or a fin of a heat exchange pipeline, and for a multi-stage compressor, the low heat exchange rate of a heat exchange device increases the heat exchange area or cannot reduce the suction temperature of a secondary compressor, so that the compression efficiency of the compressor is low.

In order to solve the technical problem that the exhaust temperature of compressor is too high among the prior art, the utility model provides a communicating pipe structure, include: and at least one cooling liquid channel is arranged between the inner wall and the outer wall of the communicating pipe, and the outer wall is provided with a first heat dissipation structure.

The utility model provides a communicating pipe structure lets high temperature high-pressure gas can take away the heat through the coolant liquid that flows in the coolant liquid passageway from the in-process that higher level compressor flows to subordinate's compressor, can also take away the heat through the heat radiation structure on the outer wall of communicating pipe, lets high-pressure gas can greatly reduced temperature when getting into subordinate's compressor, improves subordinate's compressor's efficiency.

The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and examples.

As shown in fig. 1-2, the utility model provides a communicating pipe structure includes a both ends open-ended column communicating pipe 1, and communicating pipe 1 is connected between the superior and inferior compressor, and the exhaust high temperature high-pressure gas of superior compressor gas vent pressurizes once more in flowing into subordinate compressor through communicating pipe. Be equipped with the cylindric coolant liquid passageway 2 of a plurality of straight cylinders between the inner wall of communicating pipe 1 and outer wall, the entry and the export of coolant liquid passageway 2 set up on the terminal surface at communicating pipe 1 both ends, and coolant liquid passageway 2 sets up along the even interval of the circumference of communicating pipe 1, and is wound into a circle. When high-temperature and high-pressure gas discharged by the upper-stage compressor passes through the communicating pipe, the cooling liquid circulating in the cooling liquid channel can take away the heat of the gas and reduce the temperature of the gas.

Further, in order to improve the heat dissipation efficiency of the communication pipe structure, a first heat dissipation structure is arranged on the outer wall of the communication pipe 1, the first heat dissipation structure comprises a plurality of heat dissipation fins 3 perpendicular to the outer wall, each heat dissipation fin extends from the inlet of the communication pipe 1 to the outlet of the communication pipe, and the heat dissipation fins 3 are evenly arranged along the circumferential direction of the communication pipe at intervals and wound into a circle.

Further, in order to improve the heat dissipation efficiency, a second heat dissipation structure is further arranged on the outer wall, the second heat dissipation structure comprises a fan 5 and a support 4 arranged on the outer wall and used for mounting the fan, and the fan 5 blows air towards the outer wall. Meanwhile, the temperature sensor 6 is arranged at the outlet end of the communicating pipe 1 and is arranged on the inner wall, so that the temperature of gas can be detected in real time, when the temperature is not reduced to the standard temperature, the air quantity of the fan is adjusted to accelerate the heat dissipation fins and the air to form convection, and more heat is taken away, and the gas temperature is reduced.

The utility model discloses still provide a multistage compressor, use the communicating pipe structural connection upper and lower level compressor that the above-mentioned provided.

The utility model discloses still provide an air conditioner, used the multistage compressor who has used the intercommunication tubular construction that the above-mentioned provided.

To sum up, the utility model provides a communicating pipe structure adds the coolant liquid passageway between communicating pipe inner wall and outer wall and is used for leading to the coolant liquid and reduce high-pressure gas's temperature, and arrange the heat transfer area of fin increase communicating pipe on the outer wall of communicating pipe, further reduce high-pressure gas's temperature, and be provided with the wind-force size that temperature sensor detected actual exhaust temperature and come control fan in the exit of communicating pipe, play whole cooling system communicating pipe, to reducing compressor exhaust temperature, improve compressor operation efficiency, ensure that compressor operational reliability and life have great meaning.

In other embodiments, the cooling liquid channel may not be a straight cylinder, for example, a spiral shape may be disposed between the inner wall and the outer wall to achieve the same effect, and the inlet and the outlet of the cooling liquid channel may be disposed on the outer wall of the communication pipe.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The communicating tube structure includes: the communicating pipe for connecting the upper and lower compressors is characterized in that at least one cooling liquid channel is arranged between the inner wall and the outer wall of the communicating pipe, and a first heat dissipation structure is arranged on the outer wall.

2. The feed-through tube structure according to claim 1, wherein an inlet and an outlet of the coolant passage are provided at both ends of the feed-through tube, respectively.

3. A communication pipe structure as defined in claim 2, wherein a plurality of straight cylindrical coolant passages are provided in said communication pipe, and said coolant passages are arranged at regular intervals in a circumferential direction of said communication pipe.

4. The feed-through tube structure according to claim 1, wherein the first heat dissipation structure includes a plurality of heat dissipation fins.

5. The communication pipe structure according to claim 4, wherein each of the heat dissipation fins extends from an inlet of the communication pipe to an outlet of the communication pipe, and a plurality of the heat dissipation fins are arranged at regular intervals in a circumferential direction of the communication pipe.

6. The feed-through tube structure of claim 1, wherein a second heat dissipation structure is further provided on the outer wall.

7. The communication pipe structure according to claim 6, wherein the second heat dissipation structure includes a fan and a bracket provided on the outer wall for mounting the fan, and an air outlet of the fan faces the outer wall.

8. The feed-through tube structure according to claim 1, wherein an outlet end of the feed-through tube is provided with a temperature sensor, the temperature sensor being provided on the inner wall.

9. Multistage compressor, characterized in that a connecting duct structure according to any of claims 1-8 is used.

10. An air conditioner characterized by using the multistage compressor of claim 9.

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