CN112922828A - Prevent pressure pulsation's vortex liquid pump - Google Patents
Prevent pressure pulsation's vortex liquid pump Download PDFInfo
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- CN112922828A CN112922828A CN202110249438.3A CN202110249438A CN112922828A CN 112922828 A CN112922828 A CN 112922828A CN 202110249438 A CN202110249438 A CN 202110249438A CN 112922828 A CN112922828 A CN 112922828A
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- 239000007788 liquid Substances 0.000 title claims abstract description 107
- 230000010349 pulsation Effects 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims description 59
- 238000000034 method Methods 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/02—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C2/025—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents the moving and the stationary member having co-operating elements in spiral form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0049—Equalization of pressure pulses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
Abstract
The application discloses prevent pressure pulsation's vortex liquid pump, its characterized in that: the vortex disc type vortex shedding device comprises a supporting shell (2), a fixed vortex disc (3), a movable vortex disc (4) and a fixed vortex disc end cover (7), wherein the fixed vortex disc (3) is fixedly arranged on the fixed vortex disc end cover (7), the movable vortex disc (4) is arranged in the supporting shell (2), the supporting shell (2) is matched with the fixed vortex disc end cover (7) to form a closed cavity, and the fixed vortex disc (3) and the movable vortex disc (4) are arranged in the closed cavity; the movable scroll (4) is connected with a power mechanism, the movable scroll (4) is driven by the power mechanism to rotate relative to the fixed scroll (3), and a crescent working cavity is formed between the fixed scroll (3) and the movable scroll (4). The invention has the advantages that: on the premise of keeping the simple structure of the vortex liquid pump, the pressure pulsation is eliminated, and the vibration of the vortex liquid pump caused by the pressure pulsation is reduced.
Description
Technical Field
The invention relates to a vortex liquid pump for preventing pressure pulsation, and belongs to the field of pump equipment.
Background
Under the drive of the crankshaft, the movable disc makes a non-autorotation translation around the center of the static disc by a fixed gyration radius, the crescent working cavity continuously moves towards the center, the volume of the crescent working cavity is continuously reduced, the pressure is continuously increased until the crescent working cavity is communicated with a liquid discharge port at the center, and liquid is discharged out of the pump body, so that the processes of sucking, extruding and discharging the liquid are realized.
Because of the inherent operating characteristics of the scroll pump, in a certain rotation angle of the scroll pump, because the volume of the formed crescent working cavity is reduced when the crescent working cavity is not communicated with the liquid discharge cavity, and in the certain rotation angle after the crescent working cavity is communicated with the liquid discharge cavity, the flow area between the crescent working cavity and the liquid discharge cavity is slowly increased, the amount of liquid to be discharged due to the reduction of the inner working cavity cannot be discharged in time, and the liquid is incompressible fluid, the pressure in the working cavity is obviously increased at the last stage of liquid suction and the initial stage of liquid discharge of the scroll pump, pressure pulsation is generated, machine vibration is caused, and the stability of the machine is seriously influenced, which is one of the main technical bottlenecks for limiting the development of the scroll pump. Therefore, the problem of pressure pulsation of the scroll pump must be properly solved.
There are two main schemes to solve the vibration problem that the pressure pulsation of scroll pump caused among the prior art:
the first scheme is as follows: a traditional method for solving the pressure pulsation of a scroll pump is to respectively process a similar semicircular pressure relief groove in the central areas of a movable scroll end cover and a fixed scroll end cover (see scroll compressor and other scroll machines, the Shisha university of Western Anhui traffic Humlin, Yuyonggi, Von Shi Ming, Shaanxi science and technology publisher, page 194) and the arc line part of the groove is still involute and is consistent with the outer side molded line of a matched scroll ring.
Scheme II: in view of the pressure pulsation problem, a solution is proposed by the scholars: the synchronous operation of a group of expansion type vortex pairs and a group of contraction type vortex pairs (patent publication number: CN 1641219A); a through hole group is arranged between the closed cavities of the two groups of vortex pairs for generating pressure pulsation, so that a positive main peak of the pressure pulsation generated by the contraction type vortex pair and a negative main peak of the pressure pulsation generated by the expansion type vortex pair can be mutually offset.
In the method for opening the pressure relief groove at a specific position according to the motion characteristic of the movable scroll disk, the groove shape is related to the involute, so that the difficulty is high in processing and designing the groove shape, and if the groove shape is not treated properly, the leakage is increased, and the efficiency of the pump is influenced; too small a groove depth will result in the liquid not being drained in time, while too large a groove depth will affect the stiffness of the end cap.
The method for arranging the through-flow hole group between the closed cavities of the group of synchronously operated expansion type vortex pairs and contraction type vortex pairs for generating pressure pulsation has too limited application field due to too complicated system structure, and is not suitable for single pump operation.
Disclosure of Invention
The technical scheme provided by the invention provides the vortex liquid pump capable of preventing pressure pulsation, so that the pressure pulsation is eliminated and the vibration of the vortex liquid pump caused by the pressure pulsation is reduced on the premise of keeping the simple structure of the vortex liquid pump.
In order to solve the technical problems, the invention adopts the technical scheme that the vortex liquid pump for preventing pressure pulsation comprises a support shell, a fixed vortex disc, a movable vortex disc and a fixed vortex disc end cover, wherein the fixed vortex disc is fixedly arranged on the fixed vortex disc end cover, the movable vortex disc is arranged in the support shell, the support shell and the fixed vortex disc end cover are matched to form a closed cavity, and the fixed vortex disc and the movable vortex disc are arranged in the closed cavity; the movable vortex plate and the fixed vortex plate are arranged at an angle of an angle and form a pair of crescent working cavities; the movable scroll is connected with a power mechanism, and the movable scroll is driven by the power mechanism to perform rotary motion relative to the fixed scroll; a liquid outlet is arranged in the middle of the fixed scroll end cover, and a liquid inlet is arranged on the supporting shell; and a pressure regulating structure for regulating the pressure of the crescent working cavity is arranged in the closed cavity.
Preferably, in the above vortex liquid pump for preventing pressure pulsation, the pressure regulating structure includes a circulation hole provided on an end cover of the fixed vortex disc, and the circulation hole is communicated with the crescent working chamber; the liquid outlet is connected with a liquid discharge pipeline, and the circulation hole is communicated with the liquid discharge pipeline.
Preferably, the circulation hole of the vortex liquid pump for preventing pressure pulsation includes a left circulation hole and a right circulation hole, and the left circulation hole and the right circulation hole are arranged on the end cover of the fixed vortex disc and are matched with the crescent working cavity; the left circulation hole and the right circulation hole are respectively connected with a pressure regulating pipeline and communicated with a liquid discharge pipeline through the pressure regulating pipeline.
Preferably, the pressure pulsation preventing vortex liquid pump is characterized in that the pressure regulating pipeline is provided with a one-way valve.
Preferably, the pressure regulating structure of the vortex liquid pump for preventing pressure pulsation comprises two pressure regulating through holes, and the two pressure regulating through holes are respectively arranged on the static vortex disc and the movable vortex disc.
Preferably, in the above vortex liquid pump for preventing pressure pulsation, the two pressure regulating through holes are respectively provided with a second check valve, and the second check valve does not interfere with the fixed vortex disc during the orbiting motion of the movable vortex disc relative to the fixed vortex disc.
Preferably, in the above scroll pump for preventing pressure pulsation, the pressure adjusting through hole provided in the fixed scroll is provided behind an inner engagement point between the fixed scroll and the movable scroll, so as to prevent the second check valve provided in the fixed scroll from interfering with the movable scroll.
The application has the advantages that:
according to the vortex liquid pump for preventing pressure pulsation, the pressure pulsation of the crescent working cavity during working is eliminated through the pressure regulating structure, and the overall vibration of the vortex liquid pump is reduced; the method specifically comprises the following steps: because the volume of the formed crescent working cavity starts to be reduced when the crescent working cavity is not communicated with the liquid discharge cavity, and the flow area between the crescent working cavity and the liquid discharge port is slowly increased in a certain corner after the crescent working cavity and the liquid discharge port are communicated, the liquid amount which needs to be discharged because the inner working cavity is reduced cannot be discharged in time, and the liquid is discharged through the left circulation hole and the right circulation hole and is decompressed to the crescent working cavity, so that the pressure pulsation is eliminated, and the vibration of the whole vortex liquid pump is reduced; compared with the first scheme in the background technology, the left circulation hole and the right circulation hole are not limited by the movement of the movable disc, the hole pattern is not required to be designed into an involute type, only the size of the hole is required to be reasonable, and the processing and the design are easier in comparison; compared with the second scheme in the background technology, the technical scheme of the application does not need to add an additional pair of expansion type vortex pairs which synchronously run with the expansion type vortex pairs, so that the complexity of the structure is reduced, and the universality of the application field is expanded;
according to the vortex liquid pump for preventing pressure pulsation, the liquid quantity to be discharged is discharged to the liquid discharge pipeline through the pressure regulating pipeline, in order to prevent the liquid in the liquid discharge pipeline from flowing back to the working cavity, the check valve is arranged on the pressure regulating pipeline to control the circulation of the liquid, and when the liquid pressure in the pipeline is slightly higher than the liquid discharge pressure, the check valve is automatically opened to discharge the liquid into the liquid discharge pipeline; the sizes of the left circulation hole, the right circulation hole and the pipe diameter of the pressure regulating pipeline can be designed according to the discharge capacity of the vortex liquid pump;
the vortex liquid pump for preventing pressure pulsation can be provided with pressure regulating through holes at corresponding positions of the static vortex disc and the movable vortex disc, and the two pressure regulating through holes are respectively provided with a one-way valve; because its volume just begins to reduce when the crescent working chamber that forms is not communicateed with the flowing back chamber to in certain corner behind crescent working chamber volume and the leakage fluid dram UNICOM, the flow area between the two slowly increases, can not in time discharge because of the interior working chamber reduces the liquid volume that needs the discharge, through the static vortex dish, move the pressure regulating through-hole of seting up on the vortex dish and in time discharge the liquid volume that needs the discharge in the crescent working chamber to the flowing back intracavity through check valve two, prevent to produce pressure pulsation, reduce the vibration of vortex liquid pump.
Drawings
FIG. 1 is a structural diagram of a vortex liquid pump for preventing pressure pulsation;
FIG. 2 is a schematic view of the internal structure of embodiment 1;
FIG. 3 is a schematic structural view of a pressure regulating line according to embodiment 1;
FIG. 4 is a view showing the structure of embodiment 1 with the support case removed;
FIG. 5 is a schematic view of the internal structure of embodiment 2;
FIG. 6 is a schematic structural view of a movable scroll according to embodiment 2;
fig. 7 is a schematic view of a fitting structure of the orbiting scroll and the fixed scroll according to embodiment 2.
Detailed Description
The technical features of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1-4, the present invention is a vortex liquid pump for preventing pressure pulsation, including a support housing 2, a fixed vortex disc 3, a movable vortex disc 4, and a fixed vortex disc end cover 7, wherein the fixed vortex disc 3 is fixedly disposed on the fixed vortex disc end cover 7, the movable vortex disc 4 is disposed in the support housing 2, the support housing 2 and the fixed vortex disc end cover 7 cooperate to form a closed cavity, and the fixed vortex disc 3 and the movable vortex disc 4 are disposed in the closed cavity; the movable scroll 4 and the fixed scroll 3 are arranged at a phase angle of 180 degrees to form a pair of crescent working cavities; the movable scroll 4 is connected with a power mechanism, and the movable scroll 4 is driven by the power mechanism to perform rotary motion relative to the fixed scroll 3; a liquid outlet 8 is arranged in the middle of the fixed scroll end cover 7, and a liquid inlet 1 is arranged on the support shell 2; and a pressure regulating structure for regulating the pressure of the crescent working cavity is arranged in the closed cavity. The pressure regulating structure comprises a circulation hole arranged on the end cover 7 of the fixed scroll, and the circulation hole is communicated with the crescent working cavity; the liquid outlet 8 is connected with a liquid discharge pipeline 11, and the circulation hole is communicated with the liquid discharge pipeline 11. The circulation holes comprise a left circulation hole 5 and a right circulation hole 6, and the left circulation hole 5 and the right circulation hole 6 are arranged on the fixed scroll end cover 7 and are matched with the crescent-shaped working cavity; the left circulation hole 5 and the right circulation hole 6 are respectively connected with a pressure regulating pipeline 9 and are communicated with a liquid discharge pipeline 11 through the pressure regulating pipeline 9. The pressure regulating pipeline 9 is provided with a one-way valve 10.
Pressure pulsation of the crescent working cavity during working is eliminated through the pressure regulating structure, and overall vibration of the vortex liquid pump is reduced; the method specifically comprises the following steps: because the volume of the formed crescent working cavity starts to be reduced when the crescent working cavity is not communicated with the liquid discharge cavity, and the flow area between the crescent working cavity and the liquid discharge port is slowly increased in a certain corner after the crescent working cavity and the liquid discharge port are communicated, the liquid amount which needs to be discharged because the inner working cavity is reduced cannot be discharged in time, the liquid is discharged through the left circulation hole 5 and the right circulation hole 6 and is decompressed to the crescent working cavity, and pressure pulsation is eliminated, so that the vibration of the whole vortex liquid pump is reduced; compared with the first scheme in the background technology, the left circulation hole 5 and the right circulation hole 6 are not limited by the movement of the movable disc, the hole pattern is not required to be designed into an involute type, only the reasonable size of the hole diameter is required to be ensured, and the processing and the design are easier in comparison; compared with the second scheme in the background technology, the technical scheme of the application does not need to add an additional pair of expansion type vortex pairs which synchronously run with the expansion type vortex pairs, so that the complexity of the structure is reduced, and the universality of the application field is expanded.
Because the liquid quantity to be discharged is discharged to the liquid discharge pipeline 11 through the pressure regulating pipeline 9, in order to prevent the liquid in the liquid discharge pipeline 11 from flowing back to the working cavity, the one-way valve 10 is arranged on the pressure regulating pipeline 9 to control the circulation of the liquid, when the pressure of the liquid in the pipeline is slightly higher than the liquid discharge pressure, the one-way valve 10 is automatically opened to discharge the liquid into the liquid discharge pipeline 11; the sizes of the apertures of the left circulation hole 5 and the right circulation hole 6 and the pipe diameter of the pressure regulating pipeline 9 can be designed according to the discharge capacity of the vortex pump.
Example 2
As shown in fig. 5-7, a vortex liquid pump for preventing pressure pulsation includes a support housing 2, a fixed scroll 3, a movable scroll 4, and a fixed scroll end cap 7, wherein the fixed scroll 3 is fixedly disposed on the fixed scroll end cap 7, the movable scroll 4 is disposed in the support housing 2, the support housing 2 and the fixed scroll end cap 7 cooperate to form a closed cavity, and the fixed scroll 3 and the movable scroll 4 are disposed in the closed cavity; the movable scroll 4 and the fixed scroll 3 are arranged at a phase angle of 180 degrees to form a pair of crescent working cavities; the movable scroll 4 is connected with a power mechanism, and the movable scroll 4 is driven by the power mechanism to perform rotary motion relative to the fixed scroll 3; a liquid outlet 8 is arranged in the middle of the fixed scroll end cover 7, and a liquid inlet 1 is arranged on the support shell 2; and a pressure regulating structure for regulating the pressure of the crescent working cavity is arranged in the closed cavity.
The pressure regulating structure of the pressure regulating structure comprises two pressure regulating through holes 12, and the two pressure regulating through holes 12 are respectively arranged on the static vortex disc 3 and the movable vortex disc 4.
The two pressure regulating through holes 12 are respectively provided with a second one-way valve 13, and the second one-way valve 13 does not interfere with the fixed scroll 3 in the process that the movable scroll 4 performs rotary motion relative to the fixed scroll 3.
The pressure regulating through hole 11 on the fixed scroll 3 is arranged behind an inner meshing point between the fixed scroll 3 and the movable scroll 4, and prevents the second check valve 13 arranged on the fixed scroll 3 from interfering with the movable scroll 4.
Example 3
A vortex liquid pump for preventing pressure pulsation comprises a support shell 2, a fixed vortex disc 3, a movable vortex disc 4 and a fixed vortex disc end cover 7, wherein the fixed vortex disc 3 is fixedly arranged on the fixed vortex disc end cover 7, the movable vortex disc 4 is arranged in the support shell 2, the support shell 2 and the fixed vortex disc end cover 7 are matched to form a closed cavity, and the fixed vortex disc 3 and the movable vortex disc 4 are arranged in the closed cavity; the movable scroll 4 and the fixed scroll 3 are arranged at a phase angle of 180 degrees to form a pair of crescent working cavities; the movable scroll 4 is connected with a power mechanism, and the movable scroll 4 is driven by the power mechanism to perform rotary motion relative to the fixed scroll 3; a liquid outlet 8 is arranged in the middle of the fixed scroll end cover 7, and a liquid inlet 1 is arranged on the support shell 2; and a pressure regulating structure for regulating the pressure of the crescent working cavity is arranged in the closed cavity.
The pressure regulating structure comprises two pressure regulating through holes 12 and a through hole arranged on the fixed scroll end cover 7; the circulation hole is communicated with the crescent working cavity; the liquid outlet 8 is connected with a liquid discharge pipeline 11, and the circulation hole is communicated with the liquid discharge pipeline 11. The circulation holes comprise a left circulation hole 5 and a right circulation hole 6, and the left circulation hole 5 and the right circulation hole 6 are arranged on the fixed scroll end cover 7 and are matched with the crescent-shaped working cavity; the left circulation hole 5 and the right circulation hole 6 are respectively connected with a pressure regulating pipeline 9 and are communicated with a liquid discharge pipeline 11 through the pressure regulating pipeline 9. The pressure regulating pipeline 9 is provided with a one-way valve 10.
The two pressure regulating through holes 12 are provided in the fixed scroll 3 and the movable scroll 4, respectively. The two pressure regulating through holes 12 are respectively provided with a second one-way valve 13, and the second one-way valve 13 does not interfere with the fixed scroll 3 in the process that the movable scroll 4 performs orbiting motion relative to the fixed scroll 3. The pressure regulating through hole 11 on the fixed scroll 3 is arranged behind an inner meshing point between the fixed scroll 3 and the movable scroll 4, and prevents the second check valve 13 arranged on the fixed scroll 3 from interfering with the movable scroll 4. In this embodiment, because the volume of the formed crescent working cavity starts to decrease when the crescent working cavity is not communicated with the liquid discharge cavity, and in a certain corner after the crescent working cavity is communicated with the liquid discharge cavity, the flow area between the crescent working cavity and the liquid discharge cavity is slowly increased, the liquid amount which needs to be discharged because the inner working cavity is reduced cannot be discharged in time, and the part of liquid is discharged through the left circulation hole 5, the right circulation hole 6 and the two pressure regulating through holes 12 and is decompressed to the crescent working cavity.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.
Claims (7)
1. A vortex liquid pump for preventing pressure pulsation is characterized in that: the vortex disc type vortex shedding device comprises a supporting shell (2), a fixed vortex disc (3), a movable vortex disc (4) and a fixed vortex disc end cover (7), wherein the fixed vortex disc (3) is fixedly arranged on the fixed vortex disc end cover (7), the movable vortex disc (4) is arranged in the supporting shell (2), the supporting shell (2) is matched with the fixed vortex disc end cover (7) to form a closed cavity, and the fixed vortex disc (3) and the movable vortex disc (4) are arranged in the closed cavity; the movable scroll (4) and the fixed scroll (3) are arranged at a phase angle of 180 degrees to form a pair of crescent working cavities; the movable scroll (4) is connected with a power mechanism, and the movable scroll (4) is driven by the power mechanism to rotate relative to the fixed scroll (3); a liquid outlet (8) is arranged in the middle of the fixed scroll end cover (7), and a liquid inlet (1) is arranged on the support shell (2); and a pressure regulating structure for regulating the pressure of the crescent working cavity is arranged in the closed cavity.
2. A vortex liquid pump for preventing pressure pulsation according to claim 1, wherein: the pressure regulating structure comprises a circulation hole arranged on the end cover (7) of the fixed scroll, and the circulation hole is communicated with the crescent working cavity; the liquid outlet (8) is connected with a liquid discharge pipeline (11), and the circulation hole is communicated with the liquid discharge pipeline (11).
3. A vortex liquid pump for preventing pressure pulsation according to claim 2, wherein: the circulation holes comprise a left circulation hole (5) and a right circulation hole (6), and the left circulation hole (5) and the right circulation hole (6) are arranged on the fixed scroll end cover (7) and are matched with the crescent working cavity; the left circulation hole (5) and the right circulation hole (6) are respectively connected with a pressure regulating pipeline (9) and are communicated with a liquid discharge pipeline (11) through the pressure regulating pipeline (9).
4. A vortex liquid pump for preventing pressure pulsation according to claim 3, wherein: the pressure regulating pipeline (9) is provided with a one-way valve (10).
5. A vortex liquid pump for preventing pressure pulsation according to claim 1, wherein: the pressure regulating structure of the pressure regulating structure comprises two pressure regulating through holes (12), and the two pressure regulating through holes (12) are respectively arranged on the static vortex disc (3) and the movable vortex disc (4).
6. A vortex liquid pump for preventing pressure pulsation according to claim 5, wherein: the two pressure regulating through holes (12) are respectively provided with a second one-way valve (13), and the second one-way valve (13) does not interfere with the fixed scroll (3) in the process that the movable scroll (4) performs rotary motion relative to the fixed scroll (3).
7. A vortex liquid pump for preventing pressure pulsation according to claim 6, wherein: the pressure regulating through hole (11) on the fixed scroll (3) is arranged behind an inner meshing point between the fixed scroll (3) and the movable scroll (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249438.3A CN112922828B (en) | 2021-03-08 | 2021-03-08 | Prevent pressure pulsation's vortex liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249438.3A CN112922828B (en) | 2021-03-08 | 2021-03-08 | Prevent pressure pulsation's vortex liquid pump |
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| Publication Number | Publication Date |
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| CN112922828A true CN112922828A (en) | 2021-06-08 |
| CN112922828B CN112922828B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110249438.3A Active CN112922828B (en) | 2021-03-08 | 2021-03-08 | Prevent pressure pulsation's vortex liquid pump |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3817664A (en) * | 1972-12-11 | 1974-06-18 | J Bennett | Rotary fluid pump or motor with intermeshed spiral walls |
| US4129405A (en) * | 1977-06-17 | 1978-12-12 | Arthur D. Little, Inc. | Scroll-type liquid pump with transfer passages in end plate |
| JPH05306688A (en) * | 1992-04-28 | 1993-11-19 | Mitsubishi Heavy Ind Ltd | Scroll type compressor |
| JP2000097173A (en) * | 1999-11-01 | 2000-04-04 | Daikin Ind Ltd | Scroll compressor |
| CN102207088A (en) * | 2005-09-01 | 2011-10-05 | 日立空调·家用电器株式会社 | Scroll fluid machine |
| CN102454603A (en) * | 2010-10-28 | 2012-05-16 | 日立空调·家用电器株式会社 | Scroll compressor |
| WO2020162394A1 (en) * | 2019-02-08 | 2020-08-13 | パナソニックＩｐマネジメント株式会社 | Scroll compressor |
-
2021
- 2021-03-08 CN CN202110249438.3A patent/CN112922828B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3817664A (en) * | 1972-12-11 | 1974-06-18 | J Bennett | Rotary fluid pump or motor with intermeshed spiral walls |
| US4129405A (en) * | 1977-06-17 | 1978-12-12 | Arthur D. Little, Inc. | Scroll-type liquid pump with transfer passages in end plate |
| JPH05306688A (en) * | 1992-04-28 | 1993-11-19 | Mitsubishi Heavy Ind Ltd | Scroll type compressor |
| JP2000097173A (en) * | 1999-11-01 | 2000-04-04 | Daikin Ind Ltd | Scroll compressor |
| CN102207088A (en) * | 2005-09-01 | 2011-10-05 | 日立空调·家用电器株式会社 | Scroll fluid machine |
| CN102454603A (en) * | 2010-10-28 | 2012-05-16 | 日立空调·家用电器株式会社 | Scroll compressor |
| WO2020162394A1 (en) * | 2019-02-08 | 2020-08-13 | パナソニックＩｐマネジメント株式会社 | Scroll compressor |
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| Publication number | Publication date |
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| CN112922828B (en) | 2023-03-14 |
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