CN114165449A - Flange structure, compressor and air conditioner - Google Patents
Flange structure, compressor and air conditioner Download PDFInfo
- Publication number
- CN114165449A CN114165449A CN202111496323.0A CN202111496323A CN114165449A CN 114165449 A CN114165449 A CN 114165449A CN 202111496323 A CN202111496323 A CN 202111496323A CN 114165449 A CN114165449 A CN 114165449A
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- Prior art keywords
- flange
- groove
- flange body
- compressor
- flange structure
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- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a flange structure, a compressor and an air conditioner, wherein the flange structure comprises a flange body, the flange body is made of nodular cast iron or alloy materials, the flange body comprises a first surface and a second surface, a groove which is sunken from the first surface to the second surface is arranged on the flange body, an exhaust hole penetrating to the second surface is formed in the bottom of the groove, the distance between the bottom of the groove and the second surface is the axial minimum thickness H of the flange body, and H is not more than 1.7 mm. The flange body provided by the invention is made of nodular cast iron or alloy materials, so that the axial minimum thickness H of the flange body is not more than the existing 1.7mm, the use rigidity and the wear resistance of the flange body can be met, and the clearance volume of a flange exhaust port of the flange body is reduced, so that the clearance volume of the flange exhaust port is reduced to the maximum extent on the premise of ensuring the reliability and not increasing the exhaust resistance, and the energy efficiency of a compressor is greatly improved.
Description
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to a flange structure, a compressor and an air conditioner.
Background
The high efficiency is the most urgent requirement of the domestic rotor compressor in recent years, theoretical and experimental researches find that the structural clearance volume of the compressor has obvious influence on the performance, and the COP of the compressor can be effectively improved by reducing the structural clearance volume.
For a compressor with certain displacement, the clearance volume is formed by two volumes of an exhaust hole of a flange and an exhaust crescent groove of a cylinder.
The rotor compressor flange in the prior art generally adopts gray cast iron HT250, the minimum wall thickness of the flange is generally limited to more than 1.7mm on the premise of considering the deformation of a pump body, if the structural clearance volume is further reduced, only the exhaust caliber can be reduced, the cylinder beveling angle can be reduced, or the center distance of the edge of an exhaust port of a cylinder can be reduced, but the effective flow area of the exhaust port is necessarily reduced by the method, so that the exhaust resistance is increased, the optimal design of the exhaust resistance and the clearance volume is generally difficult to be considered simultaneously, and the performance improvement space for reducing the structural clearance volume by the method is very limited.
Therefore, a compressor is needed to be provided, which effectively reduces the structure clearance volume (flange exhaust port clearance volume) and greatly improves the energy efficiency of the compressor on the premise of ensuring reliability and not increasing exhaust resistance.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of effectively reducing the clearance volume of the flange exhaust port on the premise of ensuring the reliability and not increasing the exhaust resistance. Thereby providing a flange structure, compressor and air conditioner.
In order to solve the problems, the invention provides a flange structure which comprises a flange body, wherein the flange body is made of nodular cast iron or alloy materials, the flange body comprises a first surface and a second surface, a groove which is sunken from the first surface to the second surface is formed in the flange body, the distance between the bottom of the groove and the second surface is the axial minimum thickness H of the flange body, and H is not more than 1.7 mm.
In some embodiments, the grooves include a first groove and a second groove disposed at the bottom of the first groove, the bottom of the second groove has a thickness H from the second surface, the exhaust hole is disposed at the bottom of the second groove, the bottom of the second groove is provided with an arc-shaped boss around the exhaust hole, and the top of the arc-shaped boss has a dimension greater than the depth of the second groove from the bottom of the second groove.
In some embodiments, the ductile iron comprises QT650 and QT700, and the alloy material comprises 40Cr and 20 Cr.
In some embodiments, H is between 0.7mm and 1.6 mm.
In some embodiments, H is between 0.8mm and 1.5 mm.
In some embodiments, H is between 1.0mm and 1.4 mm.
In some embodiments, H has a value of 1.2 mm.
The invention also provides a compressor which comprises the flange structure.
In some embodiments, including cylinder and valve block, the flange sets up with the cylinder is fixed, and the second face is sealed with the cylinder and is laminated, and the laminating of valve block normal close sets up on the arc boss, and when the valve block was opened, the gas in the cylinder was discharged from the exhaust hole.
The invention also provides an air conditioner which comprises the compressor.
The flange structure provided by the invention has the following beneficial effects:
the invention provides a flange structure which comprises a flange body, wherein the flange body is made of nodular cast iron or alloy materials, the flange body comprises a first surface and a second surface, a groove which is sunken from the first surface to the second surface is formed in the flange body, an exhaust hole penetrating to the second surface is formed in the bottom of the groove, the distance between the bottom of the groove and the second surface is the axial minimum thickness H of the flange body, and H is not more than 1.7 mm. The flange body provided by the invention is made of nodular cast iron or alloy materials, so that the axial minimum thickness H of the flange body is not more than the existing 1.7mm, the use rigidity, the wear resistance and the wear resistance of the flange body can be met, and the clearance volume of a flange exhaust port of the flange body is reduced, so that the clearance volume of the flange exhaust port is reduced to the maximum extent on the premise of ensuring the reliability and not increasing the exhaust resistance, and the energy efficiency of a compressor is greatly improved.
On the other hand, the compressor and the air conditioner provided by the invention are manufactured based on the flange structure, and the beneficial effects of the compressor and the air conditioner refer to the beneficial effects of the flange structure, which are not described herein in detail.
Drawings
FIG. 1 is a schematic view of a rolling rotor compressor;
FIG. 2 is a schematic structural diagram of a flange structure according to an embodiment of the present invention;
FIG. 3 is a partial view of a flange configuration of an embodiment of the present invention;
FIG. 4 is a graph of performance versus reliability grinding for a prior art compressor and a compressor employing a flange configuration according to an embodiment of the present invention;
the reference numerals are represented as:
10. a flange body; 11. a first side; 12. a second face; 13. a groove; 131. a first groove; 132. a second groove; 14. an exhaust hole; 15. an arc-shaped boss; 20. a cylinder; 30. a valve plate; 42. a motor stator; 43. a motor rotor; 44. a roller; 45. a crankshaft; 46. and a lower flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
As shown in fig. 1 to 2, the compressor motor is composed of a motor stator 42 and a motor rotor 43, and the compressor pump body is composed of a flange body 10, a cylinder 20, a roller 44, a crankshaft 45, and a lower flange 46.
The structure clearance volume is composed of an air cylinder oblique notch volume and a flange exhaust port clearance, and the flange exhaust port clearance is main.
Flange exhaust port clearance V pi D2H/4, there are 2 ways to reduce the clearance volume V, one is to reduce the exhaust port inner diameter D, but at the same time to bring about an increase in exhaust resistance; secondly, the minimum thickness H of the part, provided with the exhaust hole 14, of the flange body 10 is reduced, the exhaust resistance is not influenced, and the risk of abnormal abrasion of an exhaust valve seat exists when the thickness is too small.
Generally, in consideration of welding manufacturability and compressor cost, the material of the flange body 10 is mostly HT250, and the minimum thickness of the flange body 10 is generally more than 1.8 mm.
The technical problem of effectively reducing the clearance volume of the flange exhaust port on the premise of ensuring reliability and not increasing exhaust resistance is solved.
Referring to fig. 1 to 4, the present invention provides a flange structure, which includes a flange body 10, wherein the flange body 10 is made of nodular cast iron or an alloy material, the flange body 10 includes a first surface 11 and a second surface 12, a groove 13 recessed from the first surface 11 to the second surface 12 is disposed on the flange body 10, a vent hole 14 penetrating to the second surface 12 is disposed at the bottom of the groove 13, a distance from the bottom of the groove 13 to the second surface 12 is a minimum axial thickness H of the flange body 10, and H is not greater than 1.7 mm.
The flange body 10 of this embodiment adopts nodular cast iron or alloy material to make and makes the axial minimum thickness H of flange body 10 be not more than current 1.7mm, also can satisfy the use rigidity and the wearability of flange body 10, has reduced the flange gas vent clearance volume of flange body 10 simultaneously to under the prerequisite of guaranteeing the reliability and not increasing the exhaust resistance, furthest reduces flange gas vent clearance volume, realize promoting by a wide margin of compressor efficiency.
In some embodiments, the groove 13 includes a first groove 131 and a second groove 132 disposed at the bottom of the first groove 131, the bottom of the second groove 132 has a thickness H from the second surface 12, the exhaust hole 14 is disposed at the bottom of the second groove 132, the bottom of the second groove 132 is provided with an arc-shaped boss 15 around the exhaust hole 14, and the top of the arc-shaped boss 15 has a dimension from the bottom of the second groove 132 greater than the depth of the second groove 132.
The flange body recess 13 of this embodiment includes first recess 131 and sets up the second recess 132 in first recess 131 bottom, the bottom of second recess 132 is H apart from the thickness of second face 12, exhaust hole 14 sets up the bottom at second recess 132, the bottom of second recess 132 is provided with arc boss 15 around exhaust hole 14, the top of arc boss 15 is greater than the degree of depth of second recess 132 apart from the size of the bottom of second recess 132, do not produce with the bottom of recess 13 and interfere when making valve block 30 normal close laminating set up on arc boss 15, make valve block 30 laminate more closely on arc boss 15.
In some embodiments, the ductile iron comprises QT650 and QT700, and the alloy material comprises 40Cr, 20 Cr. The flange body 10 of the embodiment is made of QT650, QT700, 40Cr, 20Cr, and the ductile cast iron has a tensile strength of 650MPa or more, such as QT650 and QT700, or a high-tensile-strength alloy steel material, such as 40Cr, with a tensile strength of greater than or equal to 810 MPa; the tensile strength of 20Cr is more than or equal to 835MPa, so that the conditions of rigidity and wear resistance of the flange body 10 are guaranteed, the clearance volume of the exhaust port of the flange is reduced to the maximum extent on the premise of guaranteeing reliability and not increasing exhaust resistance, and the energy efficiency of the compressor is greatly improved.
In some embodiments, the performance and reliability of the compressor can be both considered when H is between 0.7mm and 1.6 mm.
In some embodiments, H is between 0.8mm and 1.5mm, and the performance-to-cost ratio of the performance and the reliability of the compressor in the interval is better.
In some embodiments, H is between 1.0mm and 1.4mm, and the performance-to-cost ratio of the performance and the reliability of the compressor in the interval is further better.
In some embodiments, H has a value of 1.2 mm. The performance-price ratio of the performance and the reliability of the compressor is the optimal choice when the value of H is 1.2mm, the performance-price ratio of the compressor is the inflection point of the rate of increasing the performance of the compressor when the value of H is 1.2mm, and the reliability is in the high performance-price ratio interval at the moment.
The invention also provides a compressor which comprises the flange structure.
In some embodiments, including cylinder 20 and valve block 30, flange body 10 and cylinder 20 fixed setting, second face 12 and the sealed laminating of cylinder 20, valve block 30 normal close laminating sets up on arc boss 15, and when valve block 30 opened, the gas in the cylinder 20 was discharged from exhaust hole 14.
The invention also provides an air conditioner which comprises the compressor.
It is easily understood by those skilled in the art that the above-described modes can be freely combined and superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (10)
1. The flange structure is characterized by comprising a flange body (10), wherein the flange body (10) is made of nodular cast iron or an alloy material, the flange body (10) comprises a first surface (11) and a second surface (12), a groove (13) which is recessed from the first surface (11) to the second surface (12) is arranged on the flange body (10), an exhaust hole (14) which penetrates through the second surface (12) is formed in the bottom of the groove (13), the distance between the bottom of the groove (13) and the second surface (12) is the axial minimum thickness H of the flange body (10), and H is not more than 1.7 mm.
2. The flange structure according to claim 1, wherein the groove (13) comprises a first groove (131) and a second groove (132) provided at the bottom of the first groove (131), the thickness of the bottom of the second groove (132) from the second face (12) is H, the exhaust hole (14) is provided at the bottom of the second groove (132), the bottom of the second groove (132) is provided with an arc-shaped boss (15) surrounding the exhaust hole (14), and the dimension of the top of the arc-shaped boss (15) from the bottom of the second groove (132) is larger than the depth of the second groove (132).
3. The flange structure of claim 1, wherein the ductile iron comprises QT650 and QT700, and the alloy material comprises 40Cr and 20 Cr.
4. The flange structure of claim 1, wherein H is between 0.7mm and 1.6 mm.
5. The flange structure of claim 1, wherein H is between 0.8mm and 1.5 mm.
6. The flange structure of claim 1, wherein H is between 1.0mm and 1.4 mm.
7. A flange structure according to claim 1, characterized in that the value of H is 1.2 mm.
8. A compressor, characterized by comprising a flange structure according to any one of claims 1 to 7.
9. The compressor of claim 8, comprising a cylinder (20) and a valve plate (30), wherein the flange body (10) is fixedly arranged with the cylinder (20), the second surface (12) is in sealing fit with the cylinder (20), the valve plate (30) is in normally closed fit with the arc-shaped boss (15), and when the valve plate (30) is opened, gas in the cylinder (20) is exhausted from the exhaust hole (14).
10. An air conditioner characterized by comprising the compressor of claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496323.0A CN114165449A (en) | 2021-12-08 | 2021-12-08 | Flange structure, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496323.0A CN114165449A (en) | 2021-12-08 | 2021-12-08 | Flange structure, compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114165449A true CN114165449A (en) | 2022-03-11 |
Family
ID=80484754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111496323.0A Withdrawn CN114165449A (en) | 2021-12-08 | 2021-12-08 | Flange structure, compressor and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114165449A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118842A (en) * | 1994-04-28 | 1996-03-20 | 株式会社东芝 | Sealed compressor |
| CN104819126A (en) * | 2015-03-02 | 2015-08-05 | 广东美芝制冷设备有限公司 | Bearing for compressor, and preparation method as well as compressor and refrigeration equipment |
| CN112833014A (en) * | 2021-03-22 | 2021-05-25 | 广东美芝精密制造有限公司 | Main bearing, compressor, refrigeration equipment and production process |
| CN113623221A (en) * | 2021-09-23 | 2021-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing flange, rotary compressor and air conditioner |
-
2021
- 2021-12-08 CN CN202111496323.0A patent/CN114165449A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118842A (en) * | 1994-04-28 | 1996-03-20 | 株式会社东芝 | Sealed compressor |
| CN104819126A (en) * | 2015-03-02 | 2015-08-05 | 广东美芝制冷设备有限公司 | Bearing for compressor, and preparation method as well as compressor and refrigeration equipment |
| CN112833014A (en) * | 2021-03-22 | 2021-05-25 | 广东美芝精密制造有限公司 | Main bearing, compressor, refrigeration equipment and production process |
| CN113623221A (en) * | 2021-09-23 | 2021-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing flange, rotary compressor and air conditioner |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20220311 |