Step-by-step cooling structure of centrifugal compressor

Abstract

The utility model discloses a centrifugal compressor step-by-step cooling structure which comprises a centrifugal compressor body, a connecting sleeve is installed on the output side of the centrifugal compressor body in a sealed mode, and the end of the connecting sleeve is communicated with an exhaust fan and an air feeder respectively. A mounting plate is mounted on the lower portion, located on one side of the exhaust fan and the air feeder, of the centrifugal compressor body in an attached mode, a sliding plate is slidably mounted in the mounting plate, and a first cooling tank, a second cooling tank and a third cooling tank are sequentially mounted on the upper portion of the sliding plate in a clamped mode. The sliding plate is limited through the installed mounting plate, it is guaranteed that the sliding plate can slide, and the corrugated connecting sleeves installed at the tail ends of the two sets of connecting pipes and the sealing connecting pipes on the outer side of the sealing cover are installed in a sealed and inserted mode, so that the two sets of connecting pipes can be pulled out flexibly; and the first cooling tank, the second cooling tank and the third cooling tank can be pulled out to be cleaned and maintained, the step-by-step cooling effect of the device is improved, and the device is convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal compressor equipment, in particular to a step-by-step cooling structure for a centrifugal compressor. Background Art

[0002] Because gas temperature rises dramatically during compression, and the specific volume v of high-temperature gas is very large, compressor energy consumption increases dramatically while maintaining the same cooling capacity. To reduce compressor power consumption and improve cooling capacity, multi-stage compression refrigeration cycles have been proposed. Currently, the most widely used is a "two-stage compression and intermediate incomplete cooling refrigeration cycle" with a flash vapor separator (commonly known as an economizer).

[0003] According to the authorization announcement number CN 204532974 U, a centrifugal compressor with a recooling structure is disclosed. The centrifugal compressor with a recooling structure includes at least two stages of impellers, a diffuser, a return flow plate, and a return flow plate. A stage flow channel connecting adjacent impeller channels is formed between the diffuser, the return flow plate, and the return flow plate. A cooling channel is provided inside the diffuser, the return flow plate, and the return flow plate. The cooling channel includes a liquid inlet and a liquid outlet, respectively used for refrigerant to enter and discharge the cooling channel. By providing the cooling channel and introducing the refrigerant into the cooling channel, the refrigerant can exchange heat with the mixed gas in the stage flow channel, thereby reducing the heat of the mixed gas, that is, achieving recooling of the mixed gas, making secondary compression easier to perform, and reducing the energy consumption of the compressor. In addition, this structure does not change the streamline of the refrigerant gas in the stage flow channel, and will not increase resistance loss and additional power consumption.

[0004] The above device only has two stages of compression space during use, which makes the cooling effect of the device poor and the refrigeration cycle components cannot be easily cleaned during use. Therefore, a centrifugal compressor stage-by-stage cooling structure is now needed. Utility Model Content

[0005] The purpose of the present utility model is to provide a step-by-step cooling structure for a centrifugal compressor, which controls the use positions of the first cooling tank, the second cooling tank and the third cooling tank by setting a retractable sliding plate, facilitates their cleaning and maintenance, meets the continuity and efficiency of step-by-step cooling, and solves the technical problems mentioned in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a centrifugal compressor step-by-step cooling structure, comprising a centrifugal compressor body, wherein the output side of the centrifugal compressor body is sealed with a connecting sleeve, and ends of the connecting sleeve are connected to an exhaust fan and a supply fan respectively;

[0007] The centrifugal compressor body is located at the lower part of one side of the exhaust fan and the blower, and a mounting plate is installed in a close relationship therewith. A sliding plate is slidably installed inside the mounting plate, and the upper part of the sliding plate is sequentially clamped and installed with the first cooling tank, the second cooling tank and the third cooling tank;

[0008] The first cooling tank, the second cooling tank and the third cooling tank are installed in alternating communication, the exhaust fan is installed in communication with one end of the third cooling tank, and the air supply fan is installed in communication with one end of the cover.

[0009] Preferably, the exhaust fan and the air supply fan are respectively connected and installed with a group of connecting pipes, and a group of corrugated connecting sleeves are installed at the end of each group of connecting pipes.

[0010] Preferably, an inner groove is provided on the upper surface of the mounting plate, a clamping groove is provided inside the inner groove, sliding grooves are symmetrically provided on both sides of the inner groove, and two groups of limiting grooves are symmetrically provided on the outer side of the inner groove.

[0011] Preferably, two sets of mounting brackets are symmetrically bolted to the top of the sliding plate, and the first cooling tank, the second cooling tank and the third cooling tank are sequentially inserted into the grooves provided in the mounting brackets.

[0012] Preferably, two groups of moving wheels are installed at the bottom of the sliding plate corresponding to the two groups of limit grooves, a group of limit columns are installed at the corresponding slide grooves on both sides of the sliding plate, and a storage groove is opened at the bottom of the sliding plate corresponding to the card slot position. Several groups of support springs are fixedly installed inside the storage groove, and a card plate is fixedly installed at the end of the support spring.

[0013] Preferably, a group of covers are sealedly installed at both ends of the first cooling tank, the second cooling tank and the third cooling tank, and cooling pipes are installed through the outer ends of the covers. The covers on one side of the first cooling tank and the second cooling tank are sealed connected by a group of air supply pipes, and the other sides of the second cooling tank and the third cooling tank are sealed connected by another group of air supply pipes, and a group of shielding inner sleeves are respectively inserted and installed inside the openings at both ends of the air supply pipes.

[0014] Preferably, a cooling pipe is inserted into the first cooling tank, a temperature conducting plate is installed in the center of the cooling pipe, an overheating pipe is inserted into the second cooling tank, honeycomb holes are opened inside the overheating pipe, and a corrugated plate is inserted into the third cooling tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The sliding plate is limited by the installed mounting plate to ensure that the sliding plate can slide, and the corrugated connecting sleeves installed at the ends of the two sets of connecting pipes are sealed and plugged into the sealing pipes on the outside of the cover, so that the two sets of connecting pipes can be flexibly pulled out, so that the first cooling tank, the second cooling tank and the third cooling tank can be pulled out, which is convenient for cleaning and maintenance of the internal structures of the first cooling tank, the second cooling tank and the third cooling tank, improving the step-by-step cooling effect of the device and facilitating maintenance of the device.

[0017] 2. The first cooling tank, the second cooling tank and the third cooling tank are alternately connected through the air supply pipe so that the gas can be cooled step by step after being sent into the first cooling tank, the second cooling tank and the third cooling tank to meet the use requirements of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the mounting plate of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly of the air supply pipe installation structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly of the card board installation structure of the utility model;

[0022] Figure 5 This is a disassembled diagram of the cover installation structure of the utility model;

[0023] Figure 6 This is a disassembled diagram of the shielding inner sleeve installation structure of the utility model.

[0024] In the figure: 1. Centrifugal compressor body; 2. Connecting sleeve; 3. Exhaust fan; 4. Supply fan; 5. Connecting pipe; 6. Corrugated connecting sleeve; 7. Mounting plate; 8. Inner groove; 9. Clamping slot; 10. Slide slot; 11. Limiting slot; 12. Sliding plate; 13. Mounting frame; 14. Moving wheel; 15. Limiting column; 16. Storage slot; 17. Support spring; 18. Clamping plate; 19. First cooling tank; 20. Second cooling tank; 21. Third cooling tank; 22. Sealing cover; 23. Sealing connecting pipe; 24. Cooling pipe; 25. Heat conduction plate; 26. Over-temperature pipe; 27. Honeycomb hole; 28. Corrugated plate; 29. ​​Air supply pipe; 30. Shielding inner sleeve. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The utility model provides: a centrifugal compressor step-by-step cooling structure, such as Figures 1-6 As shown, it includes a centrifugal compressor body 1, a connecting sleeve 2 is sealed on the output side of the centrifugal compressor body 1, and the ends of the connecting sleeve 2 are connected and installed with an exhaust fan 3 and a blower 4 respectively; the centrifugal compressor body 1 is located on the lower part of one side of the exhaust fan 3 and the blower 4 and is fitted with a mounting plate 7, a sliding plate 12 is slidably installed inside the mounting plate 7, and the upper part of the sliding plate 12 is sequentially clamped and installed with a first cooling tank 19, a second cooling tank 20 and a third cooling tank 21; the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21 are installed alternately in connection, the exhaust fan 3 is connected and installed with one end of the third cooling tank 21, and the blower 4 is connected and installed with one end of the cover 22.

[0027] Preferably, the exhaust fan 3 and the supply fan 4 are respectively connected to each other and are installed with a group of connecting pipes 5, and a group of corrugated connecting sleeves 6 are installed at the end of each group of connecting pipes 5. The corrugated connecting sleeves 6 installed at the end of the connecting pipes 5 are sealed and plugged into the sealing pipe 23 on the outside of the cover 22, which can ensure that the connecting pipes 5 are separated from the sealing pipe 23 when the sliding plate 12 is pulled out, ensuring that the sliding plate 12 can be pulled out smoothly.

[0028] Furthermore, an inner groove 8 is provided on the upper surface of the mounting plate 7, a card groove 9 is provided inside the inner groove 8, sliding grooves 10 are symmetrically provided on both sides of the inner groove 8, and two groups of limiting grooves 11 are symmetrically provided on the outer sides of the inner groove 8. The inner groove 8 provided on the surface of the mounting plate 7 limits the sliding plate 12, and the card groove 9 provided inside the inner groove 8 cooperates with the card plate 18 at the bottom of the sliding plate 12 to fix the use position of the sliding plate 12, so that the use positions of the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21 are relatively fixed, ensuring that the two groups of connecting pipes 5 can be stably sealed and plugged with the corresponding side sealing pipes 23.

[0029] Furthermore, two sets of mounting brackets 13 are symmetrically bolted to the top of the sliding plate 12. The first cooling tank 19, the second cooling tank 20 and the third cooling tank 21 are sequentially inserted into the grooves opened by the mounting brackets 13. The mounting brackets 13 installed on the top of the sliding plate 12 enable the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21 to be plugged in sequentially. Since the mounting brackets 13 limit the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21, the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21 can be independently disassembled and replaced, thereby reducing the maintenance cost of the device.

[0030] It is worth noting that two groups of moving wheels 14 are installed at the bottom of the sliding plate 12 corresponding to the two groups of limiting grooves 11, and a group of limiting columns 15 are installed on both sides of the sliding plate 12 corresponding to the sliding grooves 10. A storage groove 16 is opened at the bottom of the sliding plate 12 corresponding to the position of the card slot 9, and several groups of supporting springs 17 are fixedly installed inside the storage groove 16. A card plate 18 is fixedly installed at the end of the support spring 17. The moving wheels 14 installed at the bottom of the sliding plate 12 cooperate with the mounting frames 13 installed on both sides of the sliding plate 12 to ensure the stability of the movement of the sliding plate 12. The storage groove 16 opened at the bottom of the sliding plate 12 accommodates the support springs 17 and the card plate 18, which can ensure that the card plate 18 is limited when the sliding plate 12 is pulled.

[0031] Specifically, a group of sealing covers 22 are respectively installed at both ends of the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21, and a cooling pipe 24 is installed through the outer end of the sealing cover 22. The sealing covers 22 on one side of the first cooling tank 19 and the second cooling tank 20 are sealed connected by a group of air supply pipes 29, and the other sides of the second cooling tank 20 and the third cooling tank 21 are sealed connected by another group of air supply pipes 29. A group of shielding inner sleeves 30 are respectively inserted and installed inside the openings of both ends of the air supply pipes 29. The sealing covers 22 and sealing pipes 23 installed on both sides of the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21 are used to seal the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21. At the same time, the air supply pipes 29 are installed to make the first cooling tank 19, the second cooling tank 20 and the third cooling tank 21 communicate with each other, so that the gas can be cooled step by step, and the shielding inner sleeve 30 inserted inside the air supply pipe 29 can prevent foreign matter from being sent out, thereby improving the safety of the device.

[0032] In addition, a cooling pipe 24 is inserted inside the first cooling tank 19, and a temperature conduction plate 25 is installed in the center of the cooling pipe 24. An overtemperature pipe 26 is inserted inside the second cooling tank 20, and a honeycomb hole 27 is opened inside the overtemperature pipe 26. A corrugated plate 28 is inserted inside the third cooling tank 21. The cooling pipe 24 inside the first cooling tank 19 can be used to place coolant to reduce the temperature of the temperature conduction plate 25, and the cooling treatment is completed when the gas passes through the temperature conduction plate 25. The overtemperature pipe 26 inside the second cooling tank 20 and the honeycomb hole 27 inside the overtemperature pipe 26 can further complete the cooling when the cold air continues to pass through, and cool the subsequent entering gas again to complete the cold cycle treatment. The corrugated plate 28 inside the third cooling tank 21 can increase the contact area with the gas, and continuously cool it down through the continuous entry of cold air, thereby completing the purpose of cooling the subsequent gas.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal compressor step-by-step cooling structure, characterized in that: It comprises a centrifugal compressor body (1), the output side of the centrifugal compressor body (1) is sealed with a connecting sleeve (2), and the ends of the connecting sleeve (2) are respectively connected and installed with an exhaust fan (3) and a blower (4); The centrifugal compressor body (1) is fitted with a mounting plate (7) at the lower part of one side of the exhaust fan (3) and the air supply fan (4), a sliding plate (12) is slidably mounted inside the mounting plate (7), and a first cooling tank (19), a second cooling tank (20) and a third cooling tank (21) are sequentially clamped and mounted on the upper part of the sliding plate (12); The first cooling tank (19), the second cooling tank (20) and the third cooling tank (21) are installed in an alternating manner, the exhaust fan (3) is installed in connection with one end of the third cooling tank (21), and the air supply fan (4) is installed in connection with one end of the sealing cover (22).

2. The centrifugal compressor step-by-step cooling structure according to claim 1, characterized in that: The exhaust fan (3) and the air supply fan (4) are respectively connected and installed with a group of connecting pipes (5), and a group of corrugated connecting sleeves (6) are installed at the end of each group of connecting pipes (5).

3. The centrifugal compressor step-by-step cooling structure according to claim 2, characterized in that: An inner groove (8) is provided on the upper surface of the mounting plate (7), a clamping groove (9) is provided inside the inner groove (8), sliding grooves (10) are symmetrically provided on both sides inside the inner groove (8), and two groups of limiting grooves (11) are symmetrically provided inside and outside the inner groove (8).

4. A centrifugal compressor step-by-step cooling structure according to claim 3, characterized in that: Two groups of mounting frames (13) are symmetrically bolted to the top of the sliding plate (12), and the first cooling tank (19), the second cooling tank (20) and the third cooling tank (21) are sequentially inserted into grooves provided in the mounting frames (13).

5. The centrifugal compressor step-by-step cooling structure according to claim 4, characterized in that: Two groups of moving wheels (14) are installed at the bottom of the sliding plate (12) corresponding to the two groups of limiting grooves (11), and a group of limiting columns (15) are installed at both sides of the sliding plate (12) corresponding to the sliding grooves (10). A storage groove (16) is opened at the bottom of the sliding plate (12) corresponding to the position of the card slot (9), and a plurality of groups of supporting springs (17) are fixedly installed inside the storage groove (16), and a card plate (18) is fixedly installed at the end of the supporting spring (17).

6. A centrifugal compressor step-by-step cooling structure according to claim 5, characterized in that: A group of sealing covers (22) are respectively installed at both ends of the first cooling tank (19), the second cooling tank (20) and the third cooling tank (21), and a cooling pipe (24) is installed through the outer end of the sealing cover (22). The sealing covers (22) on one side of the first cooling tank (19) and the second cooling tank (20) are sealed connected by a group of air supply pipes (29), and the other side of the second cooling tank (20) and the third cooling tank (21) are sealed connected by another group of air supply pipes (29). A group of shielding inner sleeves (30) are respectively installed inside the openings at both ends of the air supply pipes (29).

7. A centrifugal compressor step-by-step cooling structure according to claim 6, characterized in that: A cooling pipe (24) is inserted into the first cooling tank (19), a temperature conducting plate (25) is installed at the center of the cooling pipe (24), an over-temperature pipe (26) is inserted into the second cooling tank (20), a honeycomb hole (27) is opened inside the over-temperature pipe (26), and a corrugated plate (28) is inserted into the third cooling tank (21).

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