CN219535821U - Cold-loading device for large-scale wind motor gear box rotor - Google Patents
Cold-loading device for large-scale wind motor gear box rotor Download PDFInfo
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- CN219535821U CN219535821U CN202320872394.4U CN202320872394U CN219535821U CN 219535821 U CN219535821 U CN 219535821U CN 202320872394 U CN202320872394 U CN 202320872394U CN 219535821 U CN219535821 U CN 219535821U
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- partition board
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- movable partition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model provides a large-scale wind motor gear box rotor cold-loading device, which comprises: the device comprises a low-temperature incubator, a fan, a movable partition board, a temperature control temperature sensor, a defrosting temperature sensor and a unit shell; a fixed partition board is vertically arranged in the low-temperature insulation box, a plurality of square holes are formed in the fixed partition board, the interior of the low-temperature insulation box is divided into a refrigerating area and a freezing area by the fixed partition board, a sliding door is arranged at the upper part of the freezing area, and an evaporator is arranged in the refrigerating area; the fans are arranged at the upper part of the refrigerating area, and the part of the main shaft of each fan, which downwards passes through the top plate, is connected with a fan blade; the movable partition board is arranged on the fixed partition board in a sliding way, a plurality of square holes are formed in the movable partition board, and an air cylinder is arranged between one end of the movable partition board and the low-temperature insulation box; a refrigerating system and an electric control cabinet are arranged in the unit shell, the refrigerating system is connected with the evaporator through a refrigerant pipeline, and an operation panel is arranged on the control cabinet.
Description
Technical Field
The utility model relates to the field of gear box rotor cold-loading, in particular to a large-scale wind motor gear box rotor cold-loading device.
Background
The rotor weight of the large fan gear box is huge, the processing capacity under each production beat is 10 tons and above, and the large fan gear box needs to be assembled after refrigeration, so that the following problems are mainly solved at present: when the rotor is discharged and fetched, the external environment can largely flow into the refrigerating area, so that frosting is formed on the surface of the evaporator in the refrigerating area, heat exchange is affected, and if the evaporator is heated and defrosted during continuous production, the temperature in the refrigerating area is increased, and the assembly precision of the rotor of the gearbox is affected; 2. the cooling speed of the gearbox rotor is influenced because sufficient wind speed cannot be provided in the cold-pack working area, so that the cooling speed of the gearbox rotor is difficult to meet the production takt requirement.
Disclosure of Invention
In view of the above, it is an object of the present utility model to provide a large wind turbine gearbox rotor cold-fill device for overcoming or at least partially solving or alleviating the above problems.
The utility model provides a large-scale wind motor gear box rotor cold-loading device, which comprises:
the low-temperature incubator is vertically provided with a fixed partition board, a plurality of square holes are formed in the fixed partition board in order, the fixed partition board divides the interior of the low-temperature incubator into a refrigerating area and a freezing area, the upper part of the refrigerating area is a top plate, the upper part of the freezing area is provided with a sliding door, and an evaporator is arranged in the refrigerating area;
the fans are arranged on a top plate at the upper part of the refrigerating area, and the part of the main shaft of each fan, which downwards passes through the top plate, is connected with a fan blade;
the movable partition plate is arranged on the fixed partition plate in a sliding manner, a plurality of square holes are formed in the movable partition plate in an orderly manner, and an air cylinder is arranged between one end of the movable partition plate and the low-temperature insulation box;
the refrigerating system is connected with the evaporator through a refrigerant pipeline, and an operation panel is arranged on the control cabinet.
The utility model also has the following optional features.
Optionally, the refrigeration system is a secondary refrigeration system, and comprises a liquid storage tank, a primary compressor, a secondary compressor, a primary expansion valve, a secondary expansion valve, a primary oil separator, a secondary oil separator, a condenser fan, a plate heat exchanger and the evaporator.
Optionally, the upper edge and the lower edge of the movable partition plate are respectively provided with grooves with opposite openings, and the movable partition plate is slidably assembled between the upper groove and the lower groove of the fixed partition plate.
Optionally, a plurality of fixing pins are arranged in the upper groove and the lower groove of the fixing partition plate, and each fixing pin is provided with a rolling shaft.
According to the large-scale wind motor gear box rotor cold-loading device, the fixed partition plate and the movable partition plate are arranged in the low-temperature insulation box, and the sealing and the conduction of square holes on the fixed partition plate are realized by moving the movable partition plate, so that the isolation and the conduction between a refrigerating area and a freezing area are realized; when defrosting the evaporator in the refrigeration area, the refrigeration area is isolated from the freezing area, and heat generated by defrosting is prevented from entering the freezing area. When defrosting the freezing area, the communication between the freezing area and the refrigerating area is maintained. The large-scale wind motor gear box rotor cold-loading device can ensure that the temperature in a freezing area can not rise when an evaporator is defrosted, the cooling speed of the gear box rotor can not be influenced, and the production beat requirement of the gear box rotor can be met.
Drawings
FIG. 1 is a schematic diagram of a front cross-sectional structure of a large wind power gearbox rotor cold-loading device of the utility model;
FIG. 2 is a schematic top cross-sectional structural view of a large wind power gearbox rotor cold-loading device of the present utility model;
FIG. 3 is a schematic diagram of a left-hand cross-sectional structure of a large wind power gearbox rotor cold-loading device of the utility model;
fig. 4 is a schematic structural view of the fixed partition.
Fig. 5 is a schematic view of the structure of the movable partition.
Fig. 6 is a view of a door opening sensor installation position.
Fig. 7 is a refrigeration system diagram.
In the above figures: 1. an operation panel; 2. an electric control cabinet; 3. a unit housing; 4. square holes; 5. a blower; 6. a sliding door; 7. a door opening and closing handrail; 8. a sensor sensing block; 9. a fan blade; 10. the inner wall of the box body; 11. a movable partition; 12. a cylinder; 13. a temperature control temperature sensor; 14. a defrosting temperature sensor; 15. a low-temperature incubator; 16. a base; 17. a condenser; 18. fixing the partition board; 19. an evaporator; 20. a first stage compressor; 21. a secondary compressor; 22. a first expansion valve; 23. a secondary expansion valve; 24. a primary oil separator; 25. a second-stage oil separator; 26. a primary pressure gauge; 27. a second-stage pressure gauge; 28. a liquid storage tank; 29. a condenser fan; 30. a door opening sensor; 31. a plate heat exchanger; 32. a cylinder manhole; 33. a fixing pin; 34. a rolling shaft.
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
Example 1
Referring to fig. 1, 2, 3, 4, 5, 6 and 7, an embodiment of the present utility model provides a large-scale wind motor gearbox rotor cold-loading device, including: the low-temperature incubator 15, the fan 5, the movable partition 11, the temperature control temperature sensor 13, the defrosting temperature sensor 14 and the unit shell 3; the unit shell 3 and the low-temperature incubator 15 are arranged on a base 16 in parallel; a fixed partition plate 18 is vertically arranged in the low-temperature insulation box 15, a plurality of square holes 4 are formed in the fixed partition plate 18 in order, the fixed partition plate 18 divides the low-temperature insulation box 15 into a refrigerating area and a freezing area, the upper part of the refrigerating area is a top plate, the upper part of the freezing area is provided with a sliding door 6, and an evaporator 19 is arranged in the refrigerating area; the fans 5 are arranged on a top plate at the upper part of the refrigerating area, and the part of the main shaft of each fan 5, which downwards passes through the top plate, is connected with a fan blade 9; the movable partition plate 11 is arranged on the fixed partition plate 18 in a sliding manner, a plurality of square holes 4 are formed in the movable partition plate 11 in order, and an air cylinder 12 is arranged between one end of the movable partition plate 11 and the low-temperature insulation box 15; the temperature control temperature sensor 13 is arranged on the side wall of the low-temperature incubator 15, and the detection end of the temperature control temperature sensor extends into the freezing area and is close to the surface of the movable partition 11; the defrosting temperature sensor 14 is arranged on the side edge row of the low-temperature incubator 15, and the detection end of the defrosting temperature sensor extends into the refrigerating area; a refrigerating system and an electric control cabinet 2 are arranged in the unit shell 3, the refrigerating system is connected with the evaporator 19 through a refrigerant pipeline, and an operation panel 1 is arranged on the control cabinet 2.
The control cabinet 2 detects the temperature of the freezing area in the low-temperature incubator 15 through the temperature control temperature sensor 13, and detects the temperature of the freezing area and the surface of the evaporator 19 through the defrosting temperature sensor 14.
The door frame department of low temperature insulation can 15 adopts the rubber sealing strip to seal, and door frame electrified silk heats, prevents that the adhesive tape from hardening under the low temperature, improves sealing performance. The cylinder 12 is a cylinder. The movable partition 11 coincides with the square hole 4 in the fixed partition 18. The sliding door 6 is provided with a sensor sensing block 8, the low-temperature insulation box 15 is provided with a door opening sensor 30, and whether the sliding door 6 is completely opened can be judged by whether the door opening sensor 30 detects the sensor sensing block 8.
In order to improve the refrigeration efficiency of the evaporator 19, the control cabinet 2 controls the refrigeration system to defrost the evaporator 19. When the gearbox rotor is put into the low-temperature incubator 15, the sliding door 6 is opened, the door opening sensor 30 is triggered, the control cabinet 2 controls the air cylinder 12 to drag the movable partition 11 to move, the movable partition 11 and the fixed partition 18 are staggered, square holes 4 on the fixed partition 18 and the movable partition 11 are blocked, the fixed partition 18 and the movable partition 11 isolate a refrigerating area from a freezing area, the evaporator 19 is sealed in the refrigerating area, external air is difficult to directly enter the refrigerating area where the evaporator 19 is located, heat generated by defrosting at the evaporator 19 can be effectively prevented from flowing to the freezing area in the low-temperature incubator 15, the freezing area is not heated, and the influence on the freezing of the gearbox rotor is avoided.
When the refrigeration system works for a long time, the inner wall 10 of the box body of the low-temperature insulation box 15 is frosted in a large amount, which affects the cooling efficiency, so that the refrigeration system also needs to defrost the low-temperature insulation box 15 integrally. The integral defrosting is to defrost the equipment within the time of taking out the gearbox rotor from the refrigerated area of the cryostat 15 after the equipment is shut down. When the whole defrosting is performed, the square holes 4 on the movable partition plate 11 are overlapped with the square holes 4 on the fixed partition plate 18, the square holes 4 are communicated, after the evaporator 19 is used as a condenser and generates heat, hot air blown out by the fan blades 9 of the fan 5 enters a freezing area through the square holes 4 to defrost the whole inner wall 10 of the box body of the low-temperature heat insulation box 15.
Example 2
Referring to fig. 2 and 7, the refrigeration system is a two-stage refrigeration system including a liquid storage tank 28, a first-stage compressor 20, a second-stage compressor 21, a first-stage expansion valve 22, a second-stage expansion valve 23, a first-stage oil separator 24, a second-stage oil separator 25, a condenser 17, a condenser fan 29, a plate heat exchanger 31, and an evaporator 19, on the basis of embodiment 1.
The refrigeration system is divided into a high temperature part and a low temperature part, wherein the high temperature part uses medium temperature refrigerant, the low temperature part uses low temperature refrigerant, and each part is a complete monopole compression system. The evaporation of the refrigerant in the high temperature portion of the system is used to condense the refrigerant in the low temperature portion of the system, and only the refrigerant in the low temperature portion of the system is passed to the evaporator 19 to produce refrigeration. The high temperature part and the low temperature part are connected by a plate heat exchanger 31 as an evaporative condenser, which is both the evaporator of the high temperature part and the condenser of the low temperature part.
During operation, the refrigerant compressed by the first-stage compressor 20 enters the first-stage oil separator 24 through a pipeline, the refrigerant enters the condenser 17 from the outlet of the first-stage oil separator 24, the first-stage oil separator 24 can separate lubricating oil in high-pressure refrigerant steam discharged by the refrigeration compressor and then returns the lubricating oil to the first-stage compressor 20 through an oil return pipeline, so that the first-stage compressor 20 is ensured to operate safely and efficiently, the condenser 17 takes away heat of the high-temperature high-pressure refrigerant steam, the refrigerant steam is converted into liquid refrigerant, then enters the first-stage expansion valve 22 from the condenser 17, the liquid refrigerant with medium temperature and high pressure is throttled into low-temperature low-pressure refrigerant wet steam through the first-stage expansion valve 22 and enters the plate heat exchanger 31, the refrigerant wet steam absorbs heat in the plate heat exchanger 31 to achieve a refrigerating effect, meanwhile, the lower condensing temperature is maintained for a second-stage refrigeration cycle, the refrigerant steam is generally at about-30 ℃, and then the refrigerant steam returns to the air suction port of the first-stage compressor 20, and 1 working cycle of the first-stage refrigeration system is completed, and the reciprocating operation is completed.
The secondary compressor 21 enters the secondary oil separator 25 through a refrigerant pipeline, flows out of the secondary oil separator 25 and enters the condenser 17, the secondary oil separator 25 can separate lubricating oil in high-pressure refrigerant steam discharged by the refrigeration compressor and then returns to the secondary compressor 21 through an oil return pipeline, so that the safe and efficient operation of the secondary compressor 21 is ensured, the condenser 17 carries out primary cooling on heat of the high-temperature high-pressure refrigerant steam, the heat enters the plate heat exchanger 31 from the condenser 17, the refrigerant steam is secondarily condensed into medium-temperature high-pressure liquid refrigerant through the plate heat exchanger 31 and is led into the secondary expansion valve 23, the low-temperature and high-pressure liquid refrigerant is throttled into low-temperature and low-pressure refrigerant wet steam through the secondary expansion valve 23, then enters the evaporator 19, the low-temperature and low-pressure refrigerant wet steam absorbs heat in the evaporator 19 to achieve the refrigerating effect, cold air in the evaporator 19 is blown out through the fan 5, the temperature uniformity in the low-temperature insulation box 15 is ensured, at the moment, the low-temperature and low-pressure refrigerant wet steam forms high-pressure refrigerant steam, then the high-pressure refrigerant steam returns to the secondary compressor 21, the secondary refrigeration system completes one working cycle, and the reciprocating operation is performed in this way, so that the inside of the low-temperature insulation box 15 reaches lower working temperature.
Example 3
Referring to fig. 4 and 5, on the basis of embodiment 1, the upper and lower edges of the fixed partition 18 are provided with grooves with openings facing each other, respectively, and the movable partition 11 is slidably fitted between the upper and lower grooves of the fixed partition 18.
The movable partition 11 is slidably assembled in the grooves on the upper and lower edges of the fixed partition 18, so that the movable partition 11 is close to the fixed partition 18, gaps are reduced, and the sealing performance is improved.
Example 4
Referring to fig. 4 and 5, on the basis of embodiment 3, a plurality of fixing pins 33 are provided in the upper and lower recesses of the fixed partition 18, each fixing pin 33 is provided with a rolling shaft 34, and the upper and lower edges of the movable partition 11 are in rolling engagement with the rolling shaft 34.
The upper and lower edges of the movable partition plate 11 are only contacted with the rolling shaft 34, so that the upper and lower edges of the movable partition plate 11 and the fixed partition plate 18 are prevented from being frozen together, and the air cylinder overhaul holes 32 are formed in the joint of the movable partition plate 11 and the air cylinder 12, so that overhaul is facilitated.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims. The components and structures not specifically described in this embodiment are well known in the art and are not described in detail herein.
Claims (4)
1. A large wind motor gearbox rotor cold-fill device, comprising:
the low-temperature heat preservation box (15), a fixed partition board (18) is vertically arranged in the low-temperature heat preservation box (15), a plurality of square holes (4) are formed in the fixed partition board (18) in order, the fixed partition board (18) divides the low-temperature heat preservation box (15) into a refrigerating area and a freezing area, a sliding door (6) is arranged at the upper part of the freezing area, and an evaporator (19) is arranged in the refrigerating area;
the fans (5) are arranged on a top plate at the upper part of the refrigerating area, and a part of the main shaft of each fan (5) penetrating through the top plate downwards is connected with a fan blade (9);
the movable partition board (11), the movable partition board (11) is arranged on the fixed partition board (18) in a sliding manner, a plurality of square holes (4) are formed in the movable partition board (11) in order, and an air cylinder (12) is arranged between one end of the movable partition board (11) and the low-temperature insulation box (15);
the unit comprises a unit shell (3), wherein a refrigerating system and an electric control cabinet (2) are arranged in the unit shell (3), the refrigerating system is connected with an evaporator (19) through a refrigerant pipeline, and an operation panel (1) is arranged on the electric control cabinet (2).
2. The large wind motor gearbox rotor cold-charge device of claim 1, wherein the refrigeration system is a secondary refrigeration system comprising a liquid storage tank (28), a primary compressor (20), a secondary compressor (21), a primary expansion valve (22), a secondary expansion valve (23), a primary oil separator (24), a secondary oil separator (25), a condenser (17), a condenser fan (29), a plate heat exchanger (31), and the evaporator (19).
3. The cold assembling device for the large wind motor gearbox rotor according to claim 1, wherein the upper edge and the lower edge of the fixed partition plate (18) are respectively provided with grooves with opposite openings, and the movable partition plate (11) is slidably assembled between the upper groove and the lower groove of the fixed partition plate (18).
4. A large wind motor gearbox rotor cold-loading device according to claim 3, wherein a plurality of fixing pins (33) are arranged in the upper and lower grooves of the fixed partition plate (18), each fixing pin (33) is provided with a rolling shaft (34), and the upper and lower edges of the movable partition plate (11) are in rolling fit with the rolling shafts (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320872394.4U CN219535821U (en) | 2023-04-19 | 2023-04-19 | Cold-loading device for large-scale wind motor gear box rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320872394.4U CN219535821U (en) | 2023-04-19 | 2023-04-19 | Cold-loading device for large-scale wind motor gear box rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219535821U true CN219535821U (en) | 2023-08-15 |
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ID=87634360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320872394.4U Active CN219535821U (en) | 2023-04-19 | 2023-04-19 | Cold-loading device for large-scale wind motor gear box rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219535821U (en) |
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2023
- 2023-04-19 CN CN202320872394.4U patent/CN219535821U/en active Active
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