CN219282090U

CN219282090U - Air compressor cooling system

Info

Publication number: CN219282090U
Application number: CN202222880451.1U
Authority: CN
Inventors: 王艳丽; 于永亮; 张宗海; 岳春林; 马振芳
Original assignee: Hebei Xinda Iron and Steel Group Co Ltd
Current assignee: Hebei Xinda Iron and Steel Group Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-06-30
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses an air compressor cooling system, which comprises an air compressor, a refrigerator, a filter and a plurality of coolers, wherein a plurality of compression chambers are arranged in the air compressor; wherein, the cold medium output end of the refrigerator is communicated with the cold medium supply line, and the cold medium input end of the refrigerator is communicated with the cold medium return line; a cooler is connected between two adjacent compression chambers, the cooler is simultaneously communicated with a cold medium supply line and a cold medium return line, and the filter is connected with an air inlet of the air compressor. The air compressor cooling system is characterized in that a cooler is connected between two adjacent compression chambers, the cooler is simultaneously communicated with a cold medium supply line and a cold medium return line to form a cooling loop, and the cooler reduces the temperature of gas once every time the compression chambers compress the gas, so that the temperature of the compressed gas is reduced, and the influence on the operation of subsequent equipment is avoided.

Description

Air compressor cooling system

Technical Field

The utility model relates to an air compressor cooling system, and belongs to the technical field of compressors.

Background

The air separation equipment is equipment which takes air as raw material, turns the air into liquid state by a compression circulation deep freezing method, then gradually separates and produces inert gases such as oxygen, nitrogen, argon and the like from the liquid air by rectification, and a compressor of the modern large-scale air separation equipment adopts a turbine compressor, and the basic working principle of the turbine compressor is that a working wheel (impeller) with blades arranged on a shaft rotates at high speed under the driving of a driving machine. The blades do work on the gas to enable the gas to obtain kinetic energy, and the kinetic energy is converted into pressure energy after diffusion flow, so that the pressure of the gas is improved, and meanwhile, the temperature of the gas is correspondingly improved. The final pressure required by the gas is obtained through multistage combination.

However, when the air compressor compresses air once, the temperature of the air will rise once, and the operation of the equipment is affected by the excessively high temperature of the air, but the cooling device of the current air compressor is only suitable for the air compressor which is compressed once and is not suitable for the turbine compressor, and because the air compressed by the air separation equipment is obtained from the atmosphere, but the geographical environments of all areas are different, the seasons are changed, the factors such as the difference between the early temperature and the late temperature exist in large differences, the temperature has great influence on the volume flow of the air at the inlet of the compressor, the operation condition of the compressor is more affected by the factors, the working condition is complex, and the compression energy consumption is increased, therefore, the design of an air compressor cooling system capable of cooling the air compressor for multiple times is needed.

Disclosure of Invention

Aiming at the technical problems, the utility model provides an air compressor cooling system capable of cooling compressed air for a plurality of times.

An air compressor cooling system comprises an air compressor, a refrigerator, a filter and a plurality of coolers, wherein a plurality of compression chambers are arranged in the air compressor;

wherein, the cold medium output end of the refrigerator is communicated with the cold medium supply line, and the cold medium input end of the refrigerator is communicated with the cold medium return line; a cooler is connected between two adjacent compression chambers, the cooler is simultaneously communicated with a cold medium supply line and a cold medium return line, and the filter is connected with an air inlet of the air compressor.

The technical scheme is further improved as follows: the cooler comprises an outer layer and an inner layer, one end of the inner layer of the cooler is communicated with a cold medium supply line, the other end of the inner layer of the cooler is communicated with a cold medium return line, one end of the outer layer of the cooler is communicated with an outlet of the compression chamber, and the other end of the outer layer of the cooler is communicated with an inlet of another compression chamber.

Further, a cooler is arranged in the filter.

Further, a first switching valve is provided between the inner layer and the cooling medium supply line.

Further, a second switch valve is arranged on an air outlet of the air compressor.

Further, a regulating valve is arranged between the air outlet of the air compressor and the second switch valve.

Further, a pressure detector and a temperature detector are arranged between the filter and the compression chamber.

Further, the cold medium supply line and the cold medium return line are both provided with pressure detection instruments.

Further, a pump body is provided on the cold medium supply line, and the cold medium supply line communicates with the cold medium return line.

The technical scheme can be seen that: the air compressor cooling system provided by the utility model is characterized in that a cooler is connected between two adjacent compression chambers, and the cooler is simultaneously communicated with a cold medium supply line and a cold medium return line so as to form a cooling loop, and the cooler reduces the temperature of gas once every time the compression chambers compress the gas, so that the temperature of the compressed gas is reduced, and the influence on the operation of subsequent equipment is avoided.

Meanwhile, the cooler is arranged in the filter, and air entering the compression chamber can be cooled, so that the volume of the air is reduced, and the flow of an air inlet of the air compressor is increased.

Meanwhile, a first switch valve is arranged between the inner layer of the cooler and the cold medium supply line, and when special conditions such as abnormality of the cooler are met in the actual use process, the corresponding cooler is closed by closing the corresponding first switch valve, so that the other coolers are prevented from being influenced, and the normal operation of the air compressor is maintained.

Drawings

For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an air compressor cooling system provided by the utility model.

Fig. 2 is a schematic structural diagram of another cooling system for an air compressor according to the present utility model.

In the figure, 1, a refrigerator; 2. a cold medium supply line; 3. a cold medium return line; 4. a filter; 5. an air compressor; 6. a compression chamber; 61. a first compression chamber; 62. a second compression chamber; 63. a third compression chamber; 64. a fourth compression chamber; 7. a first switching valve; 8. a cooler; 81. a fourth cooler; 82. a third cooler; 83. a second cooler; 84. a first cooler; 85. a cooler; 9. a pressure detecting instrument; 10. a temperature detector; 11. a regulating valve; 12. a second switching valve; 13. a pump body.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Referring to fig. 1, an air compressor cooling system includes an air compressor 5, a plurality of compression chambers 6 provided inside the air compressor 5, a refrigerator 1, a filter 4, and a plurality of coolers 8;

wherein, the cold medium output end of the refrigerator 1 is communicated with the cold medium supply line 2, and the cold medium input end of the refrigerator 1 is communicated with the cold medium return line 3; a cooler 8 is connected between two adjacent compression chambers 6, the cooler 8 communicates with the cooling medium supply line 2 and the cooling medium return line 3 at the same time, and the filter 4 is connected to an air inlet of the air compressor 5.

In this embodiment, the number of the compression chambers 6 is 4, the number of the coolers 8 is 3, the inlet of the first compression chamber 61 is communicated with the filter 4, the outlet of the first compression chamber 61 is communicated with the inlet of the first cooler 84, the outlet of the first cooler 84 is communicated with the inlet of the second compression chamber 63, the outlet of the second compression chamber 63 is communicated with the inlet of the second cooler 83, the outlet of the second cooler 83 is communicated with the inlet of the third compression chamber 62, the outlet of the third compression chamber 62 is communicated with the inlet of the third cooler 82, the outlet of the third cooler 82 is communicated with the inlet of the fourth compression chamber 64, the outlet of the fourth compression chamber 64 serves as a compressed gas outlet of the air compressor 5, the compressed air is compressed once by the compression chamber 6 every time the air enters the compression chamber 6, and the compressed air is cooled by the compression chamber 6.

The refrigerator 1 used in the embodiment is a lithium bromide refrigerator 1, and the lithium bromide refrigerator 1 is a relatively economical device for obtaining low-temperature cooling water, wherein working media are nontoxic, tasteless and free of explosion danger, and can utilize low-pressure steam, waste gas, waste heat, waste gas hot water and the like as power sources.

Referring to fig. 1, in other embodiments, the cooler 8 includes an outer layer and an inner layer, one end of the inner layer of the cooler 8 is connected to the cold medium supply line 2, the other end is connected to the cold medium return line 3, one end of the outer layer of the cooler 8 is connected to the outlet of the compression chamber 6, the other end is connected to the inlet of the other compression chamber 6, and the outer layer and the inner layer are each provided with a cavity, wherein the cavity is provided with an inlet and an outlet which are connected to the cavity, more specifically, the inner layer is disposed in the cavity of the outer layer, and the compressed gas in the outer layer exchanges heat with the cold medium in the inner layer.

Referring to fig. 1, in other embodiments, the cooler 85 is disposed in the filter 4, and in order to achieve better cooling effect in practical use, the cooler 85 in the filter 4 may not be disposed with an outer layer, but only with an inner layer, and the cooling medium in the inner layer exchanges heat with the air in the filter 4, so that the air entering the compression chamber 6 is cooled, thereby reducing the volume of the air and increasing the flow rate of the air inlet of the air compressor 5.

Referring to fig. 1, in other embodiments, a first switch valve 7 is disposed between the inner layer and the cooling medium supply line 2, and when a special situation such as an abnormality of the cooler 8 is encountered during actual use, the corresponding cooler 8 is closed by closing the corresponding first switch valve 7, so that the other coolers 8 are prevented from being affected, and normal operation of the air compressor 5 is maintained.

Referring to fig. 1, in other embodiments, a second switching valve 12 is provided on the air outlet of the air compressor 5, and the second switching valve 12 is used to close the air outlet of the air compressor 5.

Referring to fig. 1, in other embodiments, a regulating valve 11 is provided between the air outlet of the air compressor 5 and the second on-off valve 12, and the regulating valve 11 is used to regulate the pressure or flow of the gas output from the air compressor 5.

Referring to fig. 1, in other embodiments, pressure detecting instruments and temperature detecting instruments 10 are arranged between the filter 4 and the compression chamber 6, and pressure detecting instruments are arranged on the cold medium supply line 2 and the cold medium return line 3, and the pressure detecting instruments and the temperature detecting instruments 10 monitor the air pressure and the temperature of each position of the air compressor cooling system in real time so as to ensure the safety of the air compressor cooling system.

Referring to fig. 1, in other embodiments, a pump body 13 is provided on the cold medium supply line 2, the cold medium supply line 2 communicates with the cold medium return line 3, and in the extreme case where all the first switching valves 7 are closed, the cold medium supply line 2 and the cold medium return line 3 may form a loop,

to dredge the cooling medium and avoid damaging the refrigerator 1.

According to the air compressor cooling system provided by the utility model, the cooler 8 is connected between two adjacent compression chambers 6, and the cooler 8 is simultaneously communicated with the cold medium supply line 2 and the cold medium return line 3, so that a cooling loop is formed, and the temperature of gas is reduced once by the cooler 8 every time the gas is compressed in the compression chambers 6, so that the temperature of the compressed gas is reduced, and the influence on the operation of subsequent equipment is avoided.

The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.

Claims

1. An air compressor cooling system, includes air compressor, the inside a plurality of compression rooms that are equipped with of air compressor, its characterized in that: the refrigerator, the filter and a plurality of coolers are also included;

the refrigerating machine comprises a refrigerating machine, a refrigerating medium supply line, a refrigerating medium return line and a refrigerating medium return line, wherein the refrigerating medium output end of the refrigerating machine is communicated with the refrigerating medium supply line; and the cooler is connected between two adjacent compression chambers, is simultaneously communicated with the cold medium supply line and the cold medium return line, and is connected with an air inlet of the air compressor.

2. The air compressor cooling system of claim 1, wherein: the cooler comprises an outer layer and an inner layer, one end of the inner layer of the cooler is communicated with the cold medium supply line, the other end of the inner layer of the cooler is communicated with the cold medium return line, one end of the outer layer of the cooler is communicated with the outlet of the compression chamber, and the other end of the outer layer of the cooler is communicated with the inlet of the other compression chamber.

3. The air compressor cooling system of claim 1, wherein: a cooler is arranged in the filter.

4. The air compressor cooling system of claim 2, wherein: a first switch valve is arranged between the inner layer and the cold medium supply line.

5. The air compressor cooling system of claim 1, wherein: and a second switch valve is arranged on an air outlet of the air compressor.

6. The air compressor cooling system of claim 5, wherein: and a regulating valve is arranged between the air outlet of the air compressor and the second switch valve.

7. The air compressor cooling system of claim 1, wherein: and a pressure detector and a temperature detector are arranged between the filter and the compression chamber.

8. The air compressor cooling system of claim 7, wherein: and the cold medium supply line and the cold medium return line are both provided with pressure detection instruments.

9. The air compressor cooling system of claim 1, wherein: the cold medium supply line is provided with a pump body, and the cold medium supply line is communicated with the cold medium return line.