Centrifugal compressor oil cooling sealing device
By designing a centrifugal compressor oil cooling sealing device, the combination of front and rear sealing mechanisms and air guide mechanisms is used to solve the problems of poor heat dissipation effect and high energy consumption of the compressor cooling method, achieving more efficient heat dissipation and power saving.
Patent Information
- Application Number
- CN202420072499.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The cooling methods of existing compressors have problems such as poor heat dissipation effect and high energy consumption, especially poor air-cooled heat dissipation effect and high oil-cooled energy consumption.
A centrifugal compressor oil cooling sealing device is designed to cool the radial magnetic levitation bearings in the drive motor through front and rear sealing mechanisms and air guide mechanisms. The heat dissipation effect of the air ducts arranged between metals is homogenized and heat dissipated, and the heat dissipation efficiency is improved. And save power consumption.
It achieves a more efficient heat dissipation effect, reduces the compressor temperature and cooling oil temperature, and reduces power consumption.
Smart Images
Figure CN222162999U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, in particular to an oil cooling sealing device for a centrifugal compressor. Background Art
[0002] A compressor is a device used to compress gas to a higher pressure. It is commonly used in industrial production and manufacturing processes, such as air-conditioning systems, refrigerators, car engines, and liquefied natural gas devices. According to different working principles, compressors can be divided into reciprocating compressors, screw compressors, and centrifugal compressors. Among them: reciprocating compressors are the most common type. They compress the gas through the up and down movement of the piston and discharge the compressed gas through the exhaust valve; screw compressors use two spiral rotors to compress the gas from low to high pressure; centrifugal compressors compress the gas through centrifugal force and are often used for the compression and transportation of high-pressure gas.
[0003] At present, the conventional cooling methods for compressors are air cooling and oil cooling, among which: air cooling is to cool the metal shell through the cooling fan at the drive motor; oil cooling is to cool the cooling oil circulating in the spacer by the oil cooler. However, the conventional cooling method of compressors still has the following shortcomings:
[0004] 1. The heat dissipation effect of air cooling is poor;
[0005] 2. Oil cooling consumes a lot of energy. Utility Model Content
[0006] In order to solve the technical problems existing in the background technology, the utility model provides a centrifugal compressor oil cooling sealing device to improve the heat dissipation efficiency and reduce energy consumption.
[0007] The technical solution adopted by the utility model is:
[0008] The centrifugal compressor oil cooling sealing device is used to cool the radial magnetic bearing inside the driving motor of the centrifugal compressor, comprising:
[0009] A front sealing mechanism, a connecting mechanism, and a rear sealing mechanism are sequentially sealed and connected from front to back;
[0010] The front sealing mechanism is used to cool the iron core of the front radial magnetic bearing;
[0011] An air guide mechanism is provided at the edge of the front portion of the rear sealing mechanism, and the two are used to cool the iron core of the rear radial magnetic suspension bearing;
[0012] The connecting mechanism is used to seal and connect the front sealing mechanism and the rear sealing mechanism.
[0013] Furthermore, the front sealing mechanism comprises:
[0014] A front bulkhead barrel is opened backwards, a front through-tube is coaxially arranged inside the front bulkhead barrel, a front oil inlet and a front oil outlet which are connected with the interior of the front bulkhead barrel are arranged outside the front bulkhead barrel, an outer wall of the front bulkhead barrel is provided with inwardly concave front air induction grooves, a plurality of front air induction grooves are arranged in a circular array along the central axis of the front bulkhead barrel, and a front through-hole group which is distributed in a circular array along the central axis of the front bulkhead barrel is penetrated through the barrel wall of the front bulkhead barrel.
[0015] Furthermore, the rear sealing mechanism comprises:
[0016] A rear bulkhead barrel is arranged with an opening facing forward, a rear through-tube is arranged coaxially inside the rear bulkhead barrel, a rear oil inlet and a rear oil outlet which are connected with the interior of the rear bulkhead barrel are arranged outside the rear bulkhead barrel, an inwardly concave rear air induction groove is arranged on the outer wall of the rear bulkhead barrel, a plurality of rear air induction grooves are arranged in a circular array along the central axis of the rear bulkhead barrel, and are staggered with the front air induction grooves, a rear through hole group which is distributed in a circular array along the central axis of the rear bulkhead barrel is penetrated through the barrel wall of the rear bulkhead barrel, and slots for inserting connecting mechanisms are arranged on the rear bulkhead barrel on both sides of the rear air induction groove.
[0017] Furthermore, the closed end of the front bulkhead is aligned with the rear end of the iron core of the front radial magnetic bearing;
[0018] The closed end of the rear bulkhead is aligned with the front end of the iron core of the rear radial magnetic bearing.
[0019] Furthermore, the front oil inlet and the front oil outlet extend tangentially into the front bulkhead;
[0020] The rear oil inlet and the rear oil outlet extend tangentially into the rear partition barrel.
[0021] Furthermore, the front oil inlet, the front oil outlet, the rear oil inlet, and the rear oil outlet are connected to a cooling oil circulation device.
[0022] Furthermore, a front sealing sub-opening is provided at the rear end edge of the front threading tube;
[0023] A rear sealing sub-opening is arranged at the rear edge of the rear end of the rear threading tube;
[0024] The front sealing sub-opening and the rear sealing sub-opening are in sealing contact with each other.
[0025] Furthermore, the connecting mechanism comprises:
[0026] A sealing clamp is provided on a connecting plate at the openings of the front and rear bulkheads, and extension plates are respectively protruding from the front and rear ends of the connecting plate, and the extension plates are sealably inserted into the openings of the front and rear bulkheads, and a through hole is penetrated through the center of the connecting plate, and the through hole is used to seal and accommodate the front and rear through tubes, a front inclined plate is protruding from the front edge of the connecting plate, and the front inclined plate is inserted into the front air duct, and a rear inclined plate is protruding from the rear edge of the connecting plate, and the rear inclined plate is inserted into the rear air duct, and a central through hole group distributed in a circular array along its central axis is penetrated through the connecting plate, and the central through hole group is coaxially connected with the front through hole group and the rear through hole group, respectively.
[0027] Furthermore, the front inclined plates and the rear inclined plates are provided in a plurality of groups in a circular array distributed along the central axis of the connecting plate;
[0028] The front inclined plates and the rear inclined plates are arranged alternately.
[0029] Furthermore, the air guide mechanism comprises:
[0030] The protruding cover is arranged on the air guide groove outside the front part of the rear air guide groove, and the air guide groove is arranged in a "Π" shape. The front end of the air guide groove is abutted with the rear end of the connecting plate, and the rear end of the air guide groove is inclinedly provided with an air guide inclined plate extending into the rear air guide groove, and the parallel walls on both sides of the air guide groove are provided with plug plates extending backwards, and the plug plates are inserted in the slots.
[0031] The advantages of the centrifugal compressor oil cooling sealing device of the utility model are:
[0032] 1. The front and rear sealing ports and perforations cooperate with each other to ensure the sealing between the front and rear tubes;
[0033] 2. Reduce the temperature of the compressor through heat conduction between metals; reduce the temperature of the cooling oil through the motor cooling fan and save electricity consumption;
[0034] 3. The staggered front and rear air ducts and air guide mechanisms can even out the heat dissipation effect and improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] In order to more clearly illustrate the specific implementation of the utility model, the drawings required in the specific implementation are briefly introduced below. The drawings in the following description are implementations of the utility model.
[0036] Figure 1 It is a general three-dimensional schematic diagram of a centrifugal compressor oil cooling sealing device provided by an example of the utility model;
[0037] Figure 2 It is a three-dimensional schematic diagram of the front sealing mechanism of the centrifugal compressor oil cooling sealing device provided by the utility model example;
[0038] Figure 3 It is a three-dimensional schematic diagram of the connection mechanism of the centrifugal compressor oil cooling sealing device provided by the utility model example;
[0039] Figure 4 The utility model provides a three-dimensional assembly diagram of a rear sealing mechanism and an air guide mechanism of an oil cooling sealing device for a centrifugal compressor.
[0040] In the figure:
[0041] 1. Front sealing mechanism,
[0042] 10. Front bulkhead, 11. Front through-tube, 12. Front oil port, 13. Front oil outlet, 14. Front sealing sub-port, 15. Front air duct, 16. Front through-hole group,
[0043] 2. Connecting mechanism,
[0044] 20. Connecting plate, 21. Extending plate, 22. Perforation, 23. Front inclined plate, 24. Rear inclined plate, 25. Middle through hole group,
[0045] 3. Rear sealing mechanism,
[0046] 30, rear partition barrel, 31, rear through-tube, 32, rear oil inlet, 33, rear oil outlet, 34, rear sealing sub-port, 35, rear air inlet slot, 36, rear through-hole group, 37, slot,
[0047] 4. Air guide mechanism,
[0048] 40. air guide slot, 41. air guide inclined plate, 42. plug plate. DETAILED DESCRIPTION
[0049] In order to more clearly and explicitly illustrate the specific implementation purpose and implementation method of the utility model, the technical solution of the utility model will be fully described below. The described embodiment is a part of the embodiment of the utility model, not all the embodiments. Without making creative work, all other embodiments based on the embodiment described in the utility model belong to the protection scope of the utility model.
[0050] The utility model centrifugal compressor oil cooling sealing device is used to cool the radial magnetic suspension bearing inside the driving motor of the centrifugal compressor. Figure 1 As shown, including:
[0051] A front sealing mechanism 1, a connecting mechanism 2, and a rear sealing mechanism 3 are sequentially sealed and connected from front to rear.
[0052] The front sealing mechanism 1 is used to cool the iron core of the front radial magnetic bearing. Figure 2 As shown, including:
[0053] A front bulkhead barrel 10 is arranged with its opening facing backward, and the closed end of the front bulkhead barrel 10 is positively fitted with the rear end of the iron core of the front radial magnetic bearing; a front through-tube 11 is coaxially arranged inside the front bulkhead barrel 10, and a front sealing sub-port 14 is arranged at the rear end edge of the front through-tube 11; a front oil port 12 and a front oil outlet 13 connected with the interior of the front bulkhead barrel 10 are arranged outside the front bulkhead barrel 10, and the front oil port 12 and the front oil outlet 13 extend tangentially into the front bulkhead barrel 10 and are connected to the cooling oil circulation equipment; an inner concave front air induction groove 15 is arranged on the outer wall of the front bulkhead barrel 10, and a plurality of front air induction grooves 15 are arranged in a circular array along the central axis of the front bulkhead barrel 10, and a front through hole group 16 distributed in a circular array along the central axis of the front bulkhead barrel 10 is penetrated through the barrel wall of the front bulkhead barrel 10.
[0054] The rear sealing mechanism 3 is used to cool the iron core of the rear radial magnetic bearing. Figure 4 As shown, including:
[0055] A rear bulkhead 30 is provided with an opening forward, and a closed end of the rear bulkhead 30 is in direct contact with the front end of the iron core of the rear radial magnetic bearing; a rear through-tube 31 is coaxially provided inside the rear bulkhead 30, and a rear sealing sub-port 34 is provided at the rear end edge of the rear through-tube 31, and the rear sealing sub-port 34 is in sealing contact with the front sealing sub-port 14; a rear oil inlet 32 and a rear oil outlet 33 are provided outside the rear bulkhead 30 and are connected with the interior thereof, and the rear oil inlet 32 and the rear oil outlet 33 are tangentially It extends into the rear partition barrel 30 and is connected to the cooling oil circulation equipment; the outer wall of the rear partition barrel 30 is provided with an inwardly concave rear air induction groove 35, and the rear air induction groove 35 is provided with a plurality of groups in a circular array along the central axis of the rear partition barrel 30, and is staggered with the front air induction groove 15, and the barrel wall of the rear partition barrel 30 is penetrated by a rear through hole group 36 distributed in a circular array along its central axis, and the rear partition barrel 30 on both sides of the rear air induction groove 35 is provided with a slot 37 for inserting the connecting mechanism 2.
[0056] The connecting mechanism 2 is used to seal the front sealing mechanism 1 and the rear sealing mechanism 3. Figure 2 As shown, including:
[0057] The sealing clamp is provided at the connection plate 20 at the opening of the front partition barrel 10 and the rear partition barrel 30. The front and rear ends of the connection plate 20 are respectively provided with extension plates 21. The extension plates 21 are sealed and inserted into the openings of the front partition barrel 10 and the rear partition barrel 30. A through hole 22 is provided through the center of the connection plate 20. The through hole 22 is used to seal and accommodate the front tube 11 and the rear tube 31. A front inclined plate 23 is provided at the front edge of the connection plate 20. The front inclined plate 23 is arranged in a circular array along the central axis of the connection plate 20. There are multiple groups of them distributed and arranged in the front air inlet groove 15, and a rear inclined plate 24 is protruding at the rear end edge of the connecting plate 20. There are multiple groups of rear inclined plates 24 distributed in a circular array along the central axis of the connecting plate 20, and the rear inclined plates 24 are inserted in the rear air inlet groove 35, and the front inclined plates 23 and the rear inclined plates 24 are staggered. The connecting plate 20 is penetrated by a middle through hole group 25 distributed in a circular array along its central axis, and the middle through hole group 25 is coaxially connected with the front through hole group 16 and the rear through hole group 36 respectively.
[0058] The slot 37 is provided with an air guide mechanism 4, which is used to improve the heat dissipation effect of the rear sealing mechanism 3. Figure 4 As shown, including:
[0059] The protruding cover is provided on the air guide groove 40 outside the front part of the rear air guide groove 35, and the air guide groove 40 is arranged in a "Π" shape. The front end of the air guide groove 40 abuts against the rear end of the connecting plate 20, and the rear end of the air guide groove 40 is inclinedly provided with an air guide inclined plate 41 extending into the rear air guide groove 35, and the parallel walls on both sides of the air guide groove 40 are provided with plug plates 42 extending backwards, and the plug plates 42 are inserted into the slots 37.
[0060] Based on the above, the embodiment of the centrifugal compressor oil cooling seal device of the utility model is inspired. Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. Centrifugal compressor oil cooling sealing device, characterized in that: Used to cool the radial magnetic bearing inside the drive motor of a centrifugal compressor, including: A front sealing mechanism (1), a connecting mechanism (2), and a rear sealing mechanism (3) are sequentially sealed and connected from front to back; The front sealing mechanism (1) is used to cool the iron core of the front radial magnetic suspension bearing; An air guide mechanism (4) is provided at the front edge of the rear sealing mechanism (3), and the two are used to cool the iron core of the rear radial magnetic suspension bearing; The connecting mechanism (2) is used to seal the front sealing mechanism (1) and the rear sealing mechanism (3).
2. The centrifugal compressor oil cooling sealing device according to claim 1, characterized in that: The front sealing mechanism (1) comprises: A front bulkhead barrel (10) is arranged with its opening facing backwards, a front through-tube (11) is coaxially arranged inside the front bulkhead barrel (10), a front oil inlet (12) and a front oil outlet (13) which are connected to the interior of the front bulkhead barrel (10) are arranged outside the front bulkhead barrel (10), an outer wall of the front bulkhead barrel (10) is provided with an inwardly concave front air induction groove (15), a plurality of groups of the front air induction grooves (15) are arranged in a circular array along the central axis of the front bulkhead barrel (10), and a front through hole group (16) which is arranged in a circular array along the central axis of the front bulkhead barrel (10) is penetrated through the barrel wall of the front bulkhead barrel (10).
3. The centrifugal compressor oil cooling sealing device according to claim 2, characterized in that: The rear sealing mechanism (3) comprises: A rear bulkhead (30) is opened forward, a rear through tube (31) is coaxially arranged inside the rear bulkhead (30), a rear oil inlet (32) and a rear oil outlet (33) are arranged outside the rear bulkhead (30) and are communicated with the interior thereof, an inwardly concave rear air induction groove (35) is arranged on the outer wall of the rear bulkhead (30), a plurality of groups of the rear air induction grooves (35) are arranged in a circular array along the central axis of the rear bulkhead (30), and are staggered with the front air induction grooves (15), a rear through hole group (36) is arranged in a circular array along the central axis of the rear bulkhead (30), and slots (37) for inserting a connecting mechanism (2) are arranged on the barrel wall of the rear bulkhead (30) on both sides of the rear air induction groove (35).
4. The centrifugal compressor oil cooling sealing device according to claim 3, characterized in that: The closed end of the front bulkhead (10) is in contact with the rear end of the iron core of the front radial magnetic bearing; The closed end of the rear partition barrel (30) is aligned with the front end of the iron core of the rear radial magnetic suspension bearing.
5. The centrifugal compressor oil cooling sealing device according to claim 3, characterized in that: The front oil inlet (12) and the front oil outlet (13) extend tangentially into the front bulkhead (10); The rear oil inlet (32) and the rear oil outlet (33) extend tangentially into the rear partition barrel (30).
6. The centrifugal compressor oil cooling sealing device according to claim 5, characterized in that: The front oil inlet (12), the front oil outlet (13), the rear oil inlet (32), and the rear oil outlet (33) are connected to a cooling oil circulation device.
7. The centrifugal compressor oil cooling sealing device according to claim 3, characterized in that: A front sealing sub-opening (14) is provided at the rear end edge of the front threading tube (11); A rear sealing sub-opening (34) is provided at the rear end edge of the rear threading tube (31); The front sealing sub-opening (14) and the rear sealing sub-opening (34) are in sealing contact with each other.
8. The centrifugal compressor oil cooling sealing device according to claim 7, characterized in that: The connecting mechanism (2) comprises: A sealing clamp is provided at a connection plate (20) at the opening of the front partition barrel (10) and the rear partition barrel (30), and an extension plate (21) is respectively provided at the front and rear ends of the connection plate (20), and the extension plate (21) is sealed and inserted into the opening of the front partition barrel (10) and the rear partition barrel (30). A through hole (22) is provided through the center of the connection plate (20), and the through hole (22) is used to seal and accommodate the front through tube (11) and the rear through tube (31). The front end of the connection plate (20) A front inclined plate (23) is protrudingly provided at the edge, and the front inclined plate (23) is inserted into the front air inlet groove (15). A rear inclined plate (24) is protrudingly provided at the rear edge of the connecting plate (20), and the rear inclined plate (24) is inserted into the rear air inlet groove (35). A middle through hole group (25) distributed in a circular array along the central axis of the connecting plate (20) is penetrated by the connecting plate (20), and the middle through hole group (25) is coaxially connected with the front through hole group (16) and the rear through hole group (36).
9. The centrifugal compressor oil cooling sealing device according to claim 8, characterized in that: The front inclined plates (23) and the rear inclined plates (24) are arranged in a plurality of groups in a circular array distributed along the central axis of the connecting plate (20); The front inclined plates (23) and the rear inclined plates (24) are arranged alternately.
10. The centrifugal compressor oil cooling sealing device according to claim 8, characterized in that: The air guide mechanism (4) comprises: The protruding cover is provided on an air guide groove (40) outside the front part of the rear air guide groove (35), the air guide groove (40) is provided in a "Π" shape, the front end of the air guide groove (40) is in contact with the rear end of the connection plate (20), the rear end of the air guide groove (40) is obliquely provided with an air guide inclined plate (41) extending into the rear air guide groove (35), and plug plates (42) extending backward are provided at parallel walls on both sides of the air guide groove (40), and the plug plates (42) are inserted into the slots (37).