CN115949613A - Axial balancer for fluid impeller - Google Patents
Axial balancer for fluid impeller Download PDFInfo
- Publication number
- CN115949613A CN115949613A CN202310003547.6A CN202310003547A CN115949613A CN 115949613 A CN115949613 A CN 115949613A CN 202310003547 A CN202310003547 A CN 202310003547A CN 115949613 A CN115949613 A CN 115949613A
- Authority
- CN
- China
- Prior art keywords
- valve body
- inlet
- groove
- balancer
- power cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- Y02E10/20—Hydro energy
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fluid impeller axial balancer, which comprises a valve body, a flow inlet assembly and a flow discharge assembly, wherein the valve body is provided with a plurality of flow inlet holes; connecting grooves are formed in the inner walls of the top and the bottom of the power cavity, sealing mechanisms are arranged in the two connecting grooves, and each sealing mechanism comprises a first sealing ring and a second sealing ring; the inflow assembly comprises a first power cavity inlet, a first inlet, a second inlet and a second power cavity inlet; the drainage assembly comprises a first outlet and a second outlet; the front and the back of the valve body are both provided with two groups of mounting mechanisms. The invention arranges the balancer between the double impellers through the design of the balancer, and eliminates partial axial force through the balancer, thus the design of adopting a magnetic suspension motor to drive the multistage multi-section high-pressure high-power compressor is more reliable, simultaneously the influence of the change of external factors on the balance of a rotor shaft system in the running process of the rotor shaft is reduced, the stability of the system is improved, and the impact of the axial force on a supporting element in the running process of the system is reduced.
Description
Technical Field
The invention relates to the field of impeller balancers, in particular to a fluid impeller axial balancer.
Background
In order to obtain higher pressure and power, and the efficiency and space utilization rate of motor equipment in a compressor adopting a magnetic suspension motor as a power source, designers often adopt a multi-section multi-stage design.
The output configuration of the magnetic suspension motor adopts a single-shaft double-impeller mode; because the axial direction and the size of the double-output impeller to the rotating shaft are different, the difference value of the double-output impeller is changed, and the size of the double-output impeller is related to the external environment factors and the mechanical characteristics of a single impeller; in addition, the magnetic suspension axial bearing is limited by the size of a shaft and the size of a motor, so that the rigidity coefficient and the damping coefficient of the axial bearing are lower than those of an oil suspension bearing, and the pressure ratio design and the flow design of a system are influenced.
Disclosure of Invention
The present invention is directed to a fluid impeller axial balancer to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a fluid impeller axial balancer comprising:
the valve comprises a valve body, wherein a power cavity is formed in the valve body, and a valve core is arranged in the power cavity;
the inflow assembly is arranged on one side, the bottom and the bottom of the valve body;
a drainage assembly disposed at another side of the valve body;
connecting grooves are formed in the inner walls of the top and the bottom of the power cavity, sealing mechanisms are arranged in the two connecting grooves and comprise first sealing rings and second sealing rings, the first sealing rings are sleeved on the tops of the valve cores and located in the connecting grooves in the tops, and the second sealing rings are sleeved on the bottoms of the valve cores and located in the connecting grooves in the bottoms;
the inflow assembly comprises a first power cavity inlet, a first inlet, a second inlet and a second power cavity inlet;
the drainage assembly comprises a first outlet and a second outlet;
the front and the back of valve body all are provided with two sets of installation mechanisms, installation mechanism includes connecting block and mounting panel.
Preferably, the inner walls of one side of the top and the bottom of the power cavity are respectively provided with a first feeding groove and a second feeding groove, and one ends of the first inlet and the second inlet are respectively inserted into the first feeding groove and the second feeding groove.
Preferably, the inner walls of the top and the bottom of the power cavity are provided with a first outlet through groove and a second outlet through groove respectively, and one ends of the first outlet and the second outlet are inserted into the first outlet through groove and the second outlet through groove respectively.
Preferably, the top of the valve body is sleeved with an upper valve cover, a second penetrating through groove is formed in the middle of the top end of the upper valve cover, one end of an inlet of a second power cavity is arranged in the second penetrating through groove in a penetrating mode, a lower protruding block is arranged at the bottom of the upper valve cover, and the lower protruding block is sleeved on the inner wall of the top of the power cavity.
Preferably, the bottom of the valve body is sleeved with the lower valve cover, the middle part of the bottom end of the lower valve cover is clamped with the first penetrating groove, one end of the first power cavity inlet is penetrated and arranged in the first penetrating groove, the top of the lower valve cover is provided with the upper convex block, and the upper convex block is sleeved on the inner wall of the bottom of the power cavity.
Preferably, the avris on valve body top is encircleed and has been seted up a plurality of second screw thread and led to the groove, and is a plurality of the second screw thread is led to the inslot equal screw thread and is alternated and be connected with second hex head cap, and is a plurality of the second hex head cap is all rotated with the avris of last valve cap top and is alternated and be connected, and is a plurality of second hex head cap screw is with upper valve cap fixed connection at the top of valve body.
Preferably, the avris of valve body bottom is encircleed and has been seted up a plurality of first screw thread through groove, and is a plurality of the logical inslot equal screw thread of first screw thread alternates and is connected with first hex bolts, and is a plurality of first hex bolts all rotates with the avris of lower valve gap bottom and alternates and connects, and is a plurality of valve gap fixed connection will be in the bottom of valve body down.
Preferably, two storage chutes and four storage chutes are formed in the front and the back of the valve body, the one end of each connecting block is slidably inserted into the four storage chutes respectively, and the connecting block is provided with four rotating openings and four rotating openings respectively.
Preferably, accomodate the inner wall of spout top and bottom and all seted up the restriction spout, two all be provided with extrusion spring in the restriction spout, the top of connecting block and the equal fixedly connected with restriction slider in bottom two restriction slider respectively the sliding interlude is connected in two restriction spouts.
Preferably, the top and the equal fixedly connected with dwang in bottom of mounting panel, the inner wall of rotating mouthful top and bottom has all been seted up and has been connected logical groove, two the dwang rotates with two connection logical grooves respectively and alternates and connect, two connect the inner wall at logical groove middle part and all seted up the restriction annular, two the middle part of dwang all is overlapped and is equipped with the restriction lantern ring, two the restriction lantern ring rotates respectively and alternates and connect in two restriction annular.
The invention has the technical effects and advantages that:
(1) The invention arranges the balancer between the double impellers through the design of the balancer, and eliminates partial axial force through the balancer, thus the design of adopting a magnetic suspension motor to drive the multistage multi-section high-pressure high-power compressor is more reliable, simultaneously the influence of the change of external factors on the balance of a rotor shaft system in the operation process of the rotor shaft is reduced, the stability of the system is improved, the impact of the axial force on a supporting element in the operation process of the system is reduced, and the impeller is more stable in rotating use.
(2) The invention is military and only has the installation mechanism on the front and back of the balancer, so the balancer can be more conveniently installed between the two impeller sets by flexibly adjusting the position of the installation mechanism, and the balancer is more convenient to install and use.
Drawings
Fig. 1 is a schematic view of the overall structure of the balancer of the present invention.
Fig. 2 is a plan view showing the overall structure of the balancer of the present invention.
Fig. 3 is a sectional view showing the overall structure of the balancer of the present invention.
FIG. 4 is a cross-sectional view of the attachment of the mounting mechanism to the valve body of the present invention.
FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention.
Fig. 6 is a schematic diagram of the operation principle of the balancing system of the present invention.
In the figure: 1. an upper valve cover; 2. a valve body; 3. a valve core; 4. a first seal ring; 5. a first outlet; 6. a second outlet; 7. a first hex screw; 8. a first power chamber inlet; 9. a lower valve cover; 10. a first inlet; 11. a second inlet; 12. a second hex screw; 13. a second power chamber inlet; 14. a second seal ring; 15. connecting blocks; 1501. a limiting slide block; 1502. a compression spring; 16. mounting a plate; 1601. rotating the rod; 1602. the collar is restrained.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a first embodiment, the present invention provides a fluid impeller axial balancer as shown in fig. 1-5, for a magnetic levitation motor driven dual-impeller system, because an axial bearing of a magnetic levitation bearing is limited by a shaft size and a motor size, a stiffness coefficient and a damping coefficient of the axial bearing are lower than those of an oil levitation bearing, which affects a pressure ratio design and a flow design of the system, and through the design of the axial force balancer, a part of axial force is eliminated, so that it is possible to design a large pressure ratio and a large flow compressor for a magnetic levitation motor direct-driven dual-radial impeller; the method comprises the following steps:
the valve comprises a valve body 2, wherein a power cavity is formed in the valve body 2, and a valve core 3 is arranged in the power cavity;
the inflow assembly is arranged on one side, the bottom and the bottom of the valve body 2;
the drainage assembly is arranged on the other side of the valve body 2;
connecting grooves are formed in the inner walls of the top and the bottom of the power cavity, sealing mechanisms are arranged in the two connecting grooves and comprise a first sealing ring 4 and a second sealing ring 14, the first sealing ring 4 is sleeved on the top of the valve core 3 and is located in the connecting groove at the top, and the second sealing ring 14 is sleeved on the bottom of the valve core 3 and is located in the connecting groove at the bottom;
the connecting groove is for putting installation case 3 at power cavity card, simultaneously in order to avoid case 3 when playing the effect, because the gap of connecting groove causes case 3 operating condition's unstability, consequently sets up two sets of sealing mechanism and seals, establishes through the substep cover of first sealing washer 4 and second sealing washer 14 for case 3 can seal the inside that sets up at power cavity.
The structure type of the valve body 2 is composed of two parts, the top and the bottom of the valve body are both cylindrical structures, and the diameter of the bottom cylinder is 1.3-1.5 times of that of the top cylinder.
The inlet assembly comprises a first power cavity inlet 8, a first inlet 10, a second inlet 11 and a second power cavity inlet 13;
a first inlet through groove and a second inlet through groove are respectively formed in the inner walls of one side of the top and the bottom of the power cavity, and one ends of a first inlet 10 and a second inlet 11 are respectively inserted into the first inlet through groove and the second inlet through groove;
the inner wall of power chamber top and bottom opposite side has been seted up respectively that first play leads to the groove and the second goes out to lead to the groove, and the one end that first export 5 and second export 6 alternates respectively to set up at first play logical groove and the inside that the groove was led to the second play.
The drainage assembly comprises a first outlet 5 and a second outlet 6;
the end, far away from the valve body 2, of the first power cavity inlet 8, the first inlet 10, the second inlet 11, the second power cavity inlet 13, the first outlet 5 and the second outlet 6 is of a tubular structure, and the structure of the type can be used for conveniently connecting pipelines, so that the convenience of each port is improved when the external connection is carried out.
The front and the back of the valve body 2 are provided with two groups of mounting mechanisms, and each mounting mechanism comprises a connecting block 15 and a mounting plate 16;
the front side and the back side of the valve body 2 are both provided with two containing chutes, one ends of the four connecting blocks 15 are respectively connected in the four containing chutes in a sliding and penetrating manner, the front sides of the four connecting blocks 15 are both provided with rotating ports, and one ends of the four mounting plates 16 are respectively connected in the four rotating ports in a rotating and penetrating manner;
connecting block 15's width and thickness are accomodate the two-thirds of spout inner wall height and inner wall width, connecting block 15 can conveniently realize the pulling like this, restriction slider 1501 is connected with the cooperation of restriction spout, avoid connecting block 15 to break away from with valve body 2 completely when spuring, simultaneously through the design of being connected between restriction slider 1501 and the restriction spout, the pulling degree to connecting block 15 has carried out the restriction, also make connecting block 15 only can carry out horizontal pulling under the direction restriction simultaneously, the mounting hole has been seted up to the one end that connecting block 15 was kept away from to mounting panel 16, just so the design through the mounting hole can utilize mounting screw to connect fixedly.
Limiting sliding grooves are formed in the inner walls of the top end and the bottom end of each containing sliding groove, extrusion springs 1502 are arranged in the two limiting sliding grooves, and limiting sliding blocks 1501 are fixedly connected to the top end and the bottom end of each connecting block 15 respectively and are connected into the two limiting sliding grooves in a sliding and penetrating mode;
the top end and the bottom end of the mounting plate 16 are both fixedly connected with rotating rods 1601, connecting through grooves are formed in the inner walls of the top end and the bottom end of the rotating opening, the two rotating rods 1601 are respectively in rotating and inserting connection with the two connecting through grooves, limiting ring grooves are formed in the inner walls of the middle parts of the two connecting through grooves, limiting ring rings 1602 are sleeved in the middle parts of the two rotating rods 1601, and the two limiting ring rings 1602 are respectively in rotating and inserting connection in the two limiting ring grooves;
the contact surface of the limiting sleeve ring 1602 and the limiting ring groove is designed in a non-smooth mode, so that when the limiting sleeve ring 1602 rotates in the limiting ring groove, the simple mode can be positioned through rotation friction force, the mounting plate 16 cannot change the rotating position easily due to shaking after rotation, the position can be found conveniently after the rotation angle, and the mounting plate 16 is more convenient to mount.
The top of the valve body 2 is sleeved with an upper valve cover 1, a second penetrating through groove is formed in the middle of the top end of the upper valve cover 1, one end of a second power cavity inlet 13 is penetrated and arranged in the second penetrating through groove, a lower convex block is arranged at the bottom of the upper valve cover 1, and the lower convex block is sleeved on the inner wall of the top of the power cavity;
the avris on 2 tops of valve body is encircleed and has been seted up a plurality of second screw and has been led to the groove, and a plurality of second screw lead to the inslot equal threaded interlude and be connected with second hex head cap 12, and a plurality of second hex head cap screws 12 all rotate with the avris on 1 top of last valve gap and alternate the connection, and a plurality of second hex head cap screws 12 will go up valve gap 1 fixed connection at the top of valve body 2.
The bottom of the valve body 2 is sleeved with a lower valve cover 9, the middle part of the bottom end of the lower valve cover 9 is clamped with a first inserting through groove, one end of a first power cavity inlet 8 is inserted into the first inserting through groove, the top of the lower valve cover 9 is provided with an upper convex block, and the upper convex block is sleeved on the inner wall of the bottom of the power cavity;
a plurality of first threaded through grooves are formed in the edge side of the bottom end of the valve body 2 in a surrounding mode, first hexagonal screws 7 are connected into the first threaded through grooves in a threaded penetrating mode, the first hexagonal screws 7 are connected with the edge side of the bottom end of the lower valve cover 9 in a rotating penetrating mode, and the lower valve cover 9 is fixedly connected to the bottom of the valve body 2 through the first hexagonal screws 7;
the upper valve cover 1 and the lower valve cover 9 respectively seal the power cavity from the top and the bottom, and according to the structural characteristics of the valve body 2, the diameter of the lower valve cover 9 is also 1.3-1.5 times of that of the upper valve cover 1, and the two valve covers are respectively fixedly connected to the top and the bottom of the valve body 2 through a plurality of second hexagonal screws 12 and a plurality of first hexagonal screws 7.
The installation principle is as follows: as shown in fig. 4 and 5, when the balancer is mounted by using the mounting mechanism, the connecting block 15 can be pulled towards the direction far away from the valve body 2 according to the position where the balancer is to be mounted, the connecting block 15 slides towards the direction far away from the valve body 2 in the accommodating chute after being stressed, meanwhile, the connected limiting slider 1501 is driven to synchronously slide in the corresponding limiting chute in the sliding process, meanwhile, the extrusion spring 1502 in the limiting chute is extruded in the sliding process of the limiting slider 1501, so that the extrusion spring 1502 gradually contracts after being stressed, and meanwhile, under the pushing of the restoring force of the extrusion spring 1502, the limiting slider 1501 drives the connecting block 15 to move towards the direction close to the valve body 2;
after the connecting block 15 is pulled, if the installation direction needs to be adjusted, at this time, only the mounting plate 16 needs to be rotated, the mounting plate 16 drives the connected rotating rod 1601 to synchronously rotate in the corresponding connecting through groove under rotation, and simultaneously, the rotating rod 1601 rotates to drive the connected limiting lantern ring 1602 to synchronously rotate in the corresponding limiting annular groove, so that simple and convenient positioning type rotation of the rotation angle is realized through the rotation friction force between the limiting lantern ring 1602 and the limiting annular groove;
thus, after the position adjustment is aligned, installation is possible by mounting screws passing through mounting holes in the mounting plate 16.
In a second embodiment, as shown in fig. 6, which is a schematic view of the operating principle of the balancing system of the present invention, the balancer according to the present invention is connected between two sets of impellers according to the diagram, and a restrictor is provided between the balancer and one set of impellers;
as shown in FIG. 6, the whole impeller system comprises a left impeller, a right impeller, a volute and gas which form a single independent system, the impeller and an impeller back plate form a relatively closed box, and the pressure P in the box △1 And P △2 Size and impeller inlet P in1 And P in2 Determining the axial force of the dual-output impeller system according to the geometric parameters of the impeller;
wherein the right impeller axial force of the system is as follows: f1= P △1 *S 1.2 -P in1 *S 1.1 Axial force of the left impeller of the system: f2= P △2 *S 2.2 -P in2 *S 2.1 (ii) a The influence of intake pressure variation is not considered (the intake pressure variation is small), and the total axial force F = F2-F1 of the system at the time;
the influence factor on the axial force F is P as can be seen from the calculation formula △1 And P △2 (other factors are geometric dimensioning values) And for P △ Value of (D) determining factor P out The installation clearance of the impeller, the size clearance of the arc-shaped seal, the current position of the balance valve and the like;
the geometric parameters of a key device balance valve in the balancer are designed according to the mechanical parameter pressure ratio of the double impellers, the areas (power parts) of left and right valve cores of the balance valve are designed according to the pressure ratio value, the areas of the valve cores are in inverse proportion to the pressure ratio, a valve core flow channel is conical, and the flow passing area and the equidirectional movement displacement are in a linear relation;
when P is present △1 And P △2 In the design value where the balance valve is in the center position, P is changed due to the change of the external load out2 Rising results in P △2 The valve core of the balance valve moves to the right while the valve core of the balance valve moves to the right; due to the fact that the valve core moves rightwards, the area of the valve core on the left side is increased in the rightwards moving process, the area of the valve core on the right side is reduced, the leakage amount of the box body on the left side is increased, and P is caused △1 Rise, P △2 Descending until a new balance position is reached, F1 rises, F2 descends, the axial force F reaches a new value which is lower than a design value, and the reverse is the same;
in order to reduce the impact of the position change of the balance valve and the vibration of the system, a throttling device is designed on a system pipeline to increase the damping of the system.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A fluid impeller axial balancer comprising:
the valve comprises a valve body (2), wherein a power cavity is formed in the valve body (2), and a valve core (3) is arranged in the power cavity;
the inflow assembly is arranged on one side, the bottom and the bottom of the valve body (2);
a drainage assembly arranged on the other side of the valve body (2);
the sealing device is characterized in that connecting grooves are formed in the inner walls of the top and the bottom of the power cavity, sealing mechanisms are arranged in the two connecting grooves and comprise a first sealing ring (4) and a second sealing ring (14), the first sealing ring (4) is sleeved on the top of the valve core (3) and is positioned in the connecting groove at the top, and the second sealing ring (14) is sleeved on the bottom of the valve core (3) and is positioned in the connecting groove at the bottom;
the inflow assembly comprises a first power cavity inlet (8), a first inlet (10), a second inlet (11) and a second power cavity inlet (13);
the drainage assembly comprising a first outlet (5) and a second outlet (6);
the front and the back of valve body (2) all are provided with two sets of installation mechanisms, installation mechanism includes connecting block (15) and mounting panel (16).
2. The fluid impeller axial balancer as claimed in claim 1, wherein the inner walls of the top and bottom sides of the power chamber are respectively provided with a first inlet slot and a second inlet slot, and one ends of the first inlet (10) and the second inlet (11) are respectively inserted into the first inlet slot and the second inlet slot.
3. The fluid impeller axial balancer as claimed in claim 1, wherein the inner wall of the other side of the top and bottom of the power chamber is respectively provided with a first outlet groove and a second outlet groove, and one end of the first outlet (5) and one end of the second outlet (6) are respectively inserted into the first outlet groove and the second outlet groove.
4. The fluid impeller axial balancer as claimed in claim 1, wherein the top of the valve body (2) is sleeved with an upper valve cover (1), a second penetrating groove is formed in the middle of the top end of the upper valve cover (1), one end of the second power cavity inlet (13) is penetrated and arranged in the second penetrating groove, a lower protruding block is arranged at the bottom of the upper valve cover (1), and the lower protruding block is sleeved on the inner wall of the top of the power cavity.
5. The fluid impeller axial balancer as claimed in claim 1, wherein a lower valve cover (9) is sleeved on the bottom of the valve body (2), a first penetrating through groove is formed in the middle of the bottom end of the lower valve cover (9), one end of the first power cavity inlet (8) is penetrated and arranged in the first penetrating through groove, an upper protruding block is arranged on the top of the lower valve cover (9), and the upper protruding block is sleeved on the inner wall of the bottom of the power cavity.
6. The fluid impeller axial balancer as claimed in claim 4, wherein the side of the top end of the valve body (2) is surrounded by a plurality of second threaded through grooves, a plurality of second threaded through grooves are connected with second hexagonal screws (12) in a threaded penetrating manner, the second hexagonal screws (12) are connected with the side of the top end of the upper valve cover (1) in a rotating penetrating manner, and the second hexagonal screws (12) fixedly connect the upper valve cover (1) to the top of the valve body (2).
7. A fluid impeller axial balancer as claimed in claim 5, wherein the side of the bottom of the valve body (2) is surrounded by a plurality of first threaded through slots, a plurality of first hexagonal screws (7) are threaded into the first threaded through slots, a plurality of first hexagonal screws (7) are rotatably threaded into the side of the bottom of the lower valve cover (9), and a plurality of first hexagonal screws (7) fixedly connect the lower valve cover (9) to the bottom of the valve body (2).
8. The fluid impeller axial balancer as claimed in claim 1, wherein the valve body (2) has two receiving slots on the front and back surfaces thereof, one end of each of the four connecting blocks (15) is slidably inserted into the four receiving slots, the front surfaces of the four connecting blocks (15) are provided with rotating ports, and one end of each of the four mounting plates (16) is rotatably inserted into the four rotating ports.
9. The axial balancer of fluid impeller according to claim 8, wherein the inner walls of the top end and the bottom end of the containing chute are provided with limiting chutes, the two limiting chutes are provided with extrusion springs (1502), the top end and the bottom end of the connecting block (15) are fixedly connected with limiting sliders (1501), and the two limiting sliders (1501) are respectively slidably inserted into the two limiting chutes.
10. The fluid impeller axial balancer as claimed in claim 8, wherein the top end and the bottom end of the mounting plate (16) are both fixedly connected with a rotating rod (1601), the inner walls of the top end and the bottom end of the rotating opening are both provided with a connecting through groove, two rotating rods (1601) are respectively rotatably and alternately connected with the two connecting through grooves, two limiting ring grooves are respectively provided on the inner walls in the middle of the connecting through grooves, a limiting ring (1602) is sleeved in the middle of each rotating rod (1601), and two limiting ring rings (1602) are respectively rotatably and alternately connected in the two limiting ring grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310003547.6A CN115949613A (en) | 2023-01-03 | 2023-01-03 | Axial balancer for fluid impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310003547.6A CN115949613A (en) | 2023-01-03 | 2023-01-03 | Axial balancer for fluid impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115949613A true CN115949613A (en) | 2023-04-11 |
Family
ID=87287525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310003547.6A Pending CN115949613A (en) | 2023-01-03 | 2023-01-03 | Axial balancer for fluid impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115949613A (en) |
-
2023
- 2023-01-03 CN CN202310003547.6A patent/CN115949613A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9657744B2 (en) | Midspan active magnetic bearing | |
| US9194395B2 (en) | Scroll refrigeration compressor with a delivery valve and a bypass valve | |
| CN101952598B (en) | Scroll compressor bodies with scroll tip seals and extended thrust region | |
| CN1288328C (en) | Porous restrictor for gas bearing | |
| US9461520B2 (en) | Cryogenic liquid rotary machinery | |
| CN101268281A (en) | Multi-stage compression system including variable speed motors | |
| CN106089632A (en) | A kind of oil-free lubrication Linearkompressor | |
| KR102233449B1 (en) | Device for counterbalancing axial load in centrifugal compressor | |
| CN202266509U (en) | Diffuser capable of adjusting width of flow channel for centrifugal compressor | |
| CN1272906A (en) | Multi-stage capacity control scroll compressor | |
| CN115949613A (en) | Axial balancer for fluid impeller | |
| JP2008529470A (en) | Torus-shaped motor system | |
| CN113188275A (en) | Electronic expansion valve capable of preventing thread from being stuck | |
| US6039549A (en) | Volute compressor | |
| CN103573619B (en) | Compressor with a compressor housing having a plurality of compressor blades | |
| CN116146504A (en) | Anti-surge air suspension centrifugal blower and processing technology thereof | |
| JP2015535056A (en) | Vane pump and method of operating the same | |
| US11549505B2 (en) | Minimum pressure valve and compressor comprising such a minimum pressure valve | |
| CN115306908A (en) | Eccentric rotary valve | |
| CN113187758B (en) | Impeller axial force counteracts and balancing unit | |
| CN112648165B (en) | Double-cylinder compressor | |
| CN110285224B (en) | Electronic flow regulating valve | |
| CA2410392A1 (en) | Reverse-running pump | |
| CN218377138U (en) | Piston assembly for Stirling refrigerator and Stirling refrigerator | |
| CN108506184A (en) | A kind of big stroke plunger pump of pulse free |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |