CN109209877B - Cylinder with air suction check structure, control method thereof and compressor - Google Patents
Cylinder with air suction check structure, control method thereof and compressor Download PDFInfo
- Publication number
- CN109209877B CN109209877B CN201811179573.XA CN201811179573A CN109209877B CN 109209877 B CN109209877 B CN 109209877B CN 201811179573 A CN201811179573 A CN 201811179573A CN 109209877 B CN109209877 B CN 109209877B
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- air
- cylinder
- air suction
- valve
- check
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
-
- 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
- F04C2240/10—Stators
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention relates to the technical field of rotary compressors, in particular to a cylinder with an air suction check structure, a control method of the cylinder and a compressor. The air cylinder comprises an air cylinder body, wherein an air suction hole is formed in the air cylinder body, the air cylinder further comprises a check valve assembly, the check valve assembly is arranged in the air suction hole, the check valve assembly acts along with air suction and air discharge of the air cylinder, the check valve assembly opens the air suction hole when the air cylinder sucks air, and the check valve assembly closes the air suction hole when the air cylinder discharges air. Compared with the prior art, the air cylinder with the air suction check structure, the control method thereof and the compressor have the advantages that the check valve component is arranged in the air suction hole, so that the air suction backflow problem of the double-slide-vane air cylinder structure is effectively prevented and avoided.
Description
Technical Field
The invention relates to the technical field of rotary compressors, in particular to a cylinder with an air suction check structure, a control method of the cylinder and a compressor.
Background
The general air suction structure adopted by the existing double-sliding-vane air cylinder generally comprises two air suction holes for sucking air to complete the same-suction and same-discharge structure of the two air suction holes and the air exhaust port, however, due to the particularity of the double-sliding-vane air cylinder structure, when the roller runs to the rightmost side, the compression cavity on the left side of the air cylinder has the largest volume, the air suction holes and the air exhaust port work simultaneously, and at the moment, the high-low pressure difference at the air suction and exhaust port can cause the phenomenon of air suction backflow, so that the energy consumption loss of the compressor is increased, and the energy efficiency of the compressor is reduced.
Therefore, how to reduce the backflow phenomenon of the double-slide cylinder so as to improve the working efficiency of the double-slide cylinder is a technical problem that needs to be solved by the skilled person at present.
In view of the above, the present inventors have developed a cylinder having an intake check structure, a control method thereof, and a compressor, which have resulted therefrom.
Disclosure of Invention
The invention provides a cylinder with an air suction check structure, a control method thereof and a compressor.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a double-sliding vane air cylinder with an air suction check structure comprises an air cylinder body, wherein an air suction hole is formed in the air cylinder body, the double-sliding vane air cylinder further comprises a check valve assembly, the check valve assembly is arranged in the air suction hole, the check valve assembly acts with air suction and air discharge of the air cylinder, the air suction hole is opened by the check valve assembly when the air cylinder sucks air, and the air suction hole is closed by the check valve assembly when the air cylinder discharges air.
Further, the check valve assembly comprises a valve plate arranged in the air suction hole, one side of the valve plate is a fixed end, the other side of the valve plate is a closed end swinging around the fixed end, and the closed end acts in the air suction hole along with the air suction and air discharge actions of the air cylinder to open and close the air suction hole.
Further, the check valve assembly further comprises a cylindrical valve, and the fixed end of the valve plate is connected to the cylindrical valve.
Further, the air suction hole is axially provided with a mounting groove, the cylindrical valve is arranged in the mounting groove, one side of the cylindrical valve connected with the fixed end of the valve plate is tightly connected with the inner wall of the mounting groove, and a gap is reserved between the other side of the cylindrical valve and the inner wall of the mounting groove.
Further, the valve block is provided with a cambered surface valve block which is attached to the outer wall of the cylinder valve, the valve block is attached to the cylinder valve when the air is inhaled by the cylinder to open the gap, and the valve block is separated from the cylinder valve when the air is inhaled by the cylinder to close the gap.
Further, the surface of the cylindrical valve connected with the fixed end of the valve plate is a plane.
Further, the check valve assembly further comprises a fastening device, and the valve plate fixing end is fixed on the cylindrical valve through the fastening device.
Further, the fastening device comprises a plurality of screws, a plurality of threaded holes are formed in the cylindrical valve, and the screws are matched with the threaded holes.
Further, two air suction holes are symmetrically formed in the cylinder body, and check valve assemblies are respectively arranged in the two air suction holes.
A control method of a double-slide vane cylinder with an air suction check structure is provided, and the control method is as follows:
when the air cylinder sucks air, the check valve component opens the air suction hole under the action of air to suck air,
when the cylinder row compresses and exhausts, the check valve component closes the air suction hole under the action of air, and the check valve component blocks the back flow of air suction.
A compressor comprises the double-sliding vane cylinder with the air suction check structure.
Compared with the prior art, the air cylinder with the air suction check structure, the control method and the compressor have the advantages that the check valve component is arranged in the air suction hole, so that the air suction backflow problem of the double-slide-vane air cylinder structure is effectively prevented and avoided.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural view of a valve plate according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a check valve assembly according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram of a second embodiment of the present invention;
FIG. 5 is a schematic view of a cylinder valve according to a second embodiment of the present invention;
fig. 6 is a schematic structural view of a check valve assembly according to a second embodiment of the present invention.
Detailed Description
The invention aims to provide a cylinder with an air suction check structure, which reduces the air suction backflow phenomenon of a double-slide-vane cylinder so as to improve the working efficiency of the double-slide-vane cylinder. Another core of the present invention is to provide a compressor having the above cylinder.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
First embodiment:
referring to fig. 1 to 3, this embodiment discloses a cylinder with air suction check structure, including cylinder body 1, gleitbretter 2, bent axle, roller 3, cylinder body 1 on symmetry set up two suction holes 11 and two exhaust holes 12, two suction holes 11 be 180 degrees distribution, two exhaust holes 12 be 180 degrees distribution, cylinder body 1 still set up cylinder inner chamber 13, cylinder inner chamber 13 locate the centre of cylinder body 1, be used as the main working chamber of cylinder, roller 3 locate on the bent axle, and roll in cylinder inner chamber 13 along with the bent axle motion.
Two slide vane grooves 14 are symmetrically formed in the cylinder body 1, the two slide vane grooves 14 are distributed at 180 degrees, and the slide vanes 2 are arranged in the slide vane grooves 14; the sliding vane 2 slides in the sliding vane groove 14, and the tail end of the sliding vane 2 always abuts against the roller 3.
The sliding vane 2 divides the inner cavity 13 of the cylinder into an air suction cavity 131, a working cavity 132 and an exhaust cavity 133, and the volumes of the air suction cavity 131, the working cavity 132 and the exhaust cavity 133 change along with the rolling of the roller 3; the air suction hole 11 is communicated with the air suction cavity 131, and the air discharge hole 12 is communicated with the air discharge cavity 133.
The air cylinder also comprises a check valve plate assembly 4, the check valve assembly 4 acts along with the air suction and the air discharge of the air cylinder, the check valve assembly 4 opens the air suction hole 11 when the air cylinder sucks air, and the check valve assembly 4 closes the air suction hole 11 when the air cylinder discharges air.
The check valve assembly 4 comprises a valve plate 41 arranged in the air suction hole, one side of the valve plate 41 is a fixed end, the other side of the valve plate 41 is a closed end swinging around the fixed end, and the closed end acts in the air suction hole 11 to open and close the air suction hole 11 along with the air suction and air discharge actions of the air cylinder.
The check valve assembly 4 further comprises a fastening device 42, and the fixed end of the valve plate is fixed on the side wall of the air suction hole through the fastening device 42.
The fastening device 42 comprises a plurality of screws, the valve plate 41 is provided with a plurality of threaded holes, the threaded holes are vertically arranged on the valve plate 41, the screws are matched with the threaded holes, and the screws fix the valve plate 41 on the side wall of the air suction hole.
The valve plate 41 is a valve plate with an arc surface, the valve plate 41 is pressed and swung when the air is sucked by the air cylinder to open the air suction hole, and the valve plate 41 is pressed and swung when the air is sucked by the air cylinder to close the gap in the air suction hole.
The control method for the double-sliding-vane air cylinder with the air suction check structure is also disclosed, and comprises the following steps of:
when the cylinder sucks air, the roller 3 is positioned at the rightmost side of the inner cavity 13 of the cylinder, at the moment, the volume of the air suction cavity 131 is maximum, the pressure in the air suction cavity 131 is minimum, and the check valve assembly 4 opens the air suction hole 11 under the action of air to suck air;
when the cylinder row compresses and exhausts, the roller 3 is positioned at the leftmost side of the cylinder inner cavity 13, at the moment, the volume of the air suction cavity 131 is minimum, the pressure in the air suction cavity 131 is maximum, the valve plate 41 of the check valve assembly 4 seals the air suction hole 11 under the action of the pressure, and the back flow of air suction is blocked.
As the check valve component 4 has smaller isolation surface during the air suction action, the air enters the air cylinder cavity 13 through the S-shaped curve after the air is sucked, and the air suction buffer is properly increased, so that the valve plate 41 is prevented from reversely abutting against the inner wall of the mounting groove 111 due to the formation of the pressure after the pressure in the air cylinder cavity 13 is too high, and the effectiveness of the valve plate 41 is lost due to deformation.
The compressor comprises the double-sliding vane air cylinder with the air suction check structure.
Specific embodiment II:
referring to fig. 4 to 6, a cylinder having an air suction check structure as in embodiment one, the check valve assembly 4 'further includes a cylinder valve 43, and the fixed end of the valve plate 41' is connected to the cylinder valve 43.
The air suction hole 11 is axially provided with a mounting groove 111, the cylindrical valve 43 is arranged in the mounting groove 111, one side of the cylindrical valve 43 connected with the fixed end of the valve plate 41' is tightly connected with the inner wall of the mounting groove 111, and a gap is reserved between the other side of the cylindrical valve 43 and the inner wall of the mounting groove 111.
The valve plate 41' is provided with a cambered surface valve plate which is attached to the outer wall of the cylinder valve 43, the valve plate 41' is attached to the cylinder valve 43 when the air is sucked to open the gap, and the valve plate 41' is separated from the cylinder valve 43 when the air is sucked to close the gap.
The surface of the cylindrical valve 43 connected with the fixed end of the valve plate 41' is a plane, the check valve assembly 4' further comprises a fastening device 42', and the fixed end of the valve plate 41' is fixed on the cylindrical valve 43 through the fastening device 42 '.
Compared with the prior art, the air cylinder with the air suction check structure, the control method thereof and the compressor have the advantages that the check valve component is arranged in the air suction hole, so that the air suction backflow problem of the double-slide-vane air cylinder structure is effectively prevented and avoided.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a two gleitbretter cylinders with check structure breathes in, includes the cylinder body, the cylinder body on seted up the suction port, its characterized in that: the check valve assembly is arranged in the air suction hole, the check valve assembly acts along with the air suction and the air discharge of the air cylinder, the check valve assembly opens the air suction hole when the air cylinder sucks air, and the check valve assembly closes the air suction hole when the air cylinder discharges air; the check valve assembly comprises a valve plate and a cylindrical valve which are arranged in the air suction hole, and the fixed end of the valve plate is connected to the cylindrical valve; the air suction hole is axially provided with a mounting groove, the cylindrical valve is arranged in the mounting groove, one side of the cylindrical valve connected with the fixed end of the valve plate is tightly connected with the inner wall of the mounting groove, and a gap is reserved between the other side of the cylindrical valve and the inner wall of the mounting groove; after the gas is sucked in, the gas enters the cylinder cavity through an S-curve shape.
2. The double slide cylinder with the suction check structure according to claim 1, wherein: one side of the valve plate is a fixed end, the other side of the valve plate is a closed end swinging around the fixed end, and the closed end acts in the air suction hole to open and close the air suction hole along with the air suction and exhaust actions of the air cylinder.
3. The double slide cylinder with the suction check structure according to claim 1, wherein: the valve block is provided with a cambered surface valve block which is attached to the outer wall of the cylinder valve, the valve block is attached to the cylinder valve when the cylinder sucks air to open the gap, and the valve block is separated from the cylinder valve and closes the gap when the cylinder exhausts air.
4. The double slide cylinder with the suction check structure according to claim 1, wherein: the surface of the cylindrical valve connected with the fixed end of the valve plate is a plane.
5. The double slide cylinder with the suction check structure according to claim 1 or 4, wherein: the check valve assembly further comprises a fastening device, and the valve plate fixing end is fixed on the cylindrical valve through the fastening device.
6. The double slide cylinder with suction check structure according to claim 5, wherein: the fastening device comprises a plurality of screws, a plurality of threaded holes are formed in the cylindrical valve, and the screws are matched with the threaded holes.
7. The double slide cylinder with suction check structure according to claim 1, wherein: two air suction holes are symmetrically formed in the cylinder body, and check valve assemblies are respectively arranged in the two air suction holes.
8. A control method of a double-slide vane cylinder with an air suction check structure, characterized in that the double-slide vane cylinder with the air suction check structure according to any one of claims 1 to 7 is controlled, and the method is as follows:
when the air cylinder sucks air, the check valve component opens the air suction hole under the action of air to suck air,
when the cylinder compresses and exhausts, the check valve component closes the air suction hole under the action of gas to block the air suction backflow.
9. A compressor, characterized in that: the compressor comprises the double-sliding vane air cylinder with the air suction check structure according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811179573.XA CN109209877B (en) | 2018-10-10 | 2018-10-10 | Cylinder with air suction check structure, control method thereof and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811179573.XA CN109209877B (en) | 2018-10-10 | 2018-10-10 | Cylinder with air suction check structure, control method thereof and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109209877A CN109209877A (en) | 2019-01-15 |
| CN109209877B true CN109209877B (en) | 2024-03-22 |
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ID=64983155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811179573.XA Active CN109209877B (en) | 2018-10-10 | 2018-10-10 | Cylinder with air suction check structure, control method thereof and compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN109209877B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2756386A1 (en) * | 1977-12-17 | 1979-06-28 | Bosch Gmbh Robert | Inlet valve for stepped piston compressor - is curved leaf spring contained in annular groove in wall of annular cylinder stage |
| JPS60182575U (en) * | 1984-05-16 | 1985-12-04 | 三菱電機株式会社 | Rotary compressor discharge valve |
| JPH06341388A (en) * | 1990-10-20 | 1994-12-13 | Robert Bosch Gmbh | Pressure valve |
| US5921273A (en) * | 1996-04-08 | 1999-07-13 | Zexel Corporation | Delivery valve assembly for compressor |
| CN201650746U (en) * | 2010-04-28 | 2010-11-24 | 广东美芝制冷设备有限公司 | Exhaust valve device of rotary compressor |
| CN105221420A (en) * | 2015-10-22 | 2016-01-06 | 珠海凌达压缩机有限公司 | Refrigerating system and single-cylinder double-sliding-piece compressor thereof |
| CN208934922U (en) * | 2018-10-10 | 2019-06-04 | 珠海凌达压缩机有限公司 | Air cylinder with air suction non-return structure and compressor |
-
2018
- 2018-10-10 CN CN201811179573.XA patent/CN109209877B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2756386A1 (en) * | 1977-12-17 | 1979-06-28 | Bosch Gmbh Robert | Inlet valve for stepped piston compressor - is curved leaf spring contained in annular groove in wall of annular cylinder stage |
| JPS60182575U (en) * | 1984-05-16 | 1985-12-04 | 三菱電機株式会社 | Rotary compressor discharge valve |
| JPH06341388A (en) * | 1990-10-20 | 1994-12-13 | Robert Bosch Gmbh | Pressure valve |
| US5921273A (en) * | 1996-04-08 | 1999-07-13 | Zexel Corporation | Delivery valve assembly for compressor |
| CN201650746U (en) * | 2010-04-28 | 2010-11-24 | 广东美芝制冷设备有限公司 | Exhaust valve device of rotary compressor |
| CN105221420A (en) * | 2015-10-22 | 2016-01-06 | 珠海凌达压缩机有限公司 | Refrigerating system and single-cylinder double-sliding-piece compressor thereof |
| CN208934922U (en) * | 2018-10-10 | 2019-06-04 | 珠海凌达压缩机有限公司 | Air cylinder with air suction non-return structure and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109209877A (en) | 2019-01-15 |
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