CN102052317A - Rotary compressor for HC (hydrocarbon) coolant and application thereof - Google Patents
Rotary compressor for HC (hydrocarbon) coolant and application thereof Download PDFInfo
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- CN102052317A CN102052317A CN2009101936516A CN200910193651A CN102052317A CN 102052317 A CN102052317 A CN 102052317A CN 2009101936516 A CN2009101936516 A CN 2009101936516A CN 200910193651 A CN200910193651 A CN 200910193651A CN 102052317 A CN102052317 A CN 102052317A
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- refrigerant
- rotary compressor
- refrigerator oil
- oil
- coolant
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Abstract
The invention discloses a rotary compressor for an HC (hydrocarbon) coolant and an application thereof. The rotary compressor for the HC coolant is characterized in that a seal housing which takes a high-pressure side as housing intrinsic pressure is internally provided with a motor part, a compressing mechanism part configured at the lower side of the motor part and refrigerator oil packaged in the seal housing; the compressing mechanism part driven by the motor part comprises a cylinder, a piston, a slip sheet, a crank shaft, a main bearing and a supplementary bearing, wherein the piston is revolved eccentrically in the cylinder; the tip of the slip sheet is slidably connected with the periphery of the piston; the crank shaft is driven by the motor part; and the main bearing and the supplementary bearing support the crank shaft; the temperature of the refrigerator oil is 0-80 DEG C, and the pressure is 0.1-2.5 MPa; the specific gravity of the refrigerator oil is greater than that of the condensed HC coolant, and the dissolvability of the refrigerator oil and the HC coolant is no more than 15%. The viscosity of the refrigerator oil at 40 DEG C is less than 80mm<2>/sec. The HC coolant is R290 or R600a. The rotary compressor for the HC coolant has the advantages that the manufacturing cost is low, the packaging quantity of the coolant is small, and the lubrication of each moving part of the compressor is good.
Description
Technical field
The present invention relates to a kind of rotary compressor, particularly a kind of HC refrigerant rotary compressor and application thereof.
Background technique
In recent years, in order to improve the earth environment problem of globalization, cut down the global warming higher refrigerant of value GWP of diving,, adopt that to replace hfc refrigerant, the global warming very little HC of value GWP that dives be refrigerant, advance as the research of R290 etc. as the use amount of R22 or R410A etc.But from the angle of Security, the coolant quantity that requires to enclose the system that comprises compressor wants a small amount of.
Summary of the invention
Purpose of the present invention aims to provide a kind of simple and reasonable, fabricating cost is low, refrigerant encapsulation amount is little and each moving element of compressor is lubricated good HC refrigerant with rotary compressor and application thereof, to overcome deficiency of the prior art.
A kind of HC refrigerant rotary compressor by this purpose design, in the seal casinghousing that the high pressure side is pressed in as housing, motor section is set, is configured in the compression mechanical part of motor section downside and encloses refrigerator oil in the seal casinghousing, by motor section compressor driven structure portion comprise cylinder, the slide slide plate that joins, the bent axle that is driven by motor section, main bearing and the supplementary bearing that supports bent axle of eccentric rotating piston, tip and piston periphery in cylinder, the temperature that it is characterized in that refrigerator oil is 0 ℃～80 ℃, and pressure is 0.1Mpa～2.5Mpa; The proportion of refrigerator oil is that the ratio of refrigerant is great than the HC of condensation, and with HC be that the dissolubility of refrigerant is less than or equal to 15%.
Described refrigerator oil is in the time of 40 ℃, and its viscosity is less than 80mm
2/ sec.
Described HC is that refrigerant is R290 or R600a.
A kind of HC refrigerant rotary compressor is characterized in that in the suction loop of described compression mechanical part, the cancellation liquid container.
A kind of HC refrigerant rotary compressor is characterized in that described supplementary bearing is provided with the slide plate oil supply hole, and the slide plate oil supply hole communicates with the vane slot that holds slide plate, is trapped in the slip surface of the refrigerator oil fuel feeding of seal casinghousing bottom to slide plate by slide plate oil supply hole handle.
The bottom of described bent axle is provided with an oil supply hole, and the perforate of axle oil supply hole is in the refrigerator oil that is arranged in the seal casinghousing bottom.
The bottom of described bent axle is provided with a fuel supply line, and an end of axle fuel supply line communicates with the axle oil supply hole, and the other end perforate of axle fuel supply line is in refrigerator oil.
A kind of HC refrigerant is characterized in that with the application of rotary compressor described rotary compressor carries in air conditioner or freezing machine.
The requirement that the latent very little HC of value GWP of use global warming is a refrigerant on rotary compressor is very high, because rotary compressor is the high pressure side, has just become problem so increase the refrigerant enclosed volume of freeze cycle.In order to solve this problem, can use than refrigerant than refrigerator oil great, difficult and the refrigerant dissolving, consequently, be stored in the bottom of seal casinghousing with the irrelevant refrigerator oil of operating condition, compression mechanical part is lubricated easily, and the HC refrigerant has only a very little part to be dissolved in the refrigerator oil, therefore, can reduce the coolant quantity of enclosing in the seal casinghousing.
The present invention minimizes the internal volume and the oil mass that are applied in the rotary compressor on air conditioner or the freezing machine, reduces the refrigerant enclosed volume of said system sum total, consequently can reduce the influence to greenhouse, and the global warming of refrigerant is dived, and GWP is very little for value.
The present invention has cut down the oil sealing amount in the rotary compressor housing, because easy fuel feeding is given compression mechanical part and can be reduced the refrigerant enclosed volume of system, so can improve the reliability of compressor and the Security that improves system, and, can also cancel the required liquid container of rotary compressor, it has the characteristics simple and reasonable, that fabricating cost is low.
Description of drawings
Fig. 1 is one embodiment of the invention sectional structure schematic representation.
Fig. 2 is the refrigerator oil among the present invention and the distribution map of refrigerant.
Among the figure: 1 is rotary compressor, and 2 is seal casinghousing, and 3 is discharge pipe, and 5 is condenser, 6 is vaporizer, and 7 is capillary tube, and 8 is the axle oil supply hole, and 12 is refrigerator oil, 13 is liquid container, and 14 is suction pipe, and 16 is liquid coolant, and 17 is eccentric shaft, 21 is compression mechanical part, and 22 is motor section, and 23 is cylinder, and 25 is main bearing, 26 is supplementary bearing, and 27 is bent axle, and 28 is piston, and 29 is slide plate, 45 is oil sump, and 51 is the slide plate oil supply hole, and 55 is the axle fuel supply line.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Referring to Fig. 1, this rotary compressor 1 is made of the compression mechanical part 21 that is installed in the motor section 22 in the seal casinghousing 2 and is configured in its underpart.
Compression mechanical part 21, by cylinder 23, in the cylinder compression chamber, make the rotating piston 28 of revolution, with synchronous, the reciprocating slide plate 29 of piston, join with bent axle 27 and the eccentric shaft 17 of eccentric drive piston 28, the sliding main bearing 25 and the supplementary bearing 26 that support bent axle 27 of closing constitutes.Each above component parts is configured in the screw assembling on main bearing 25 and the supplementary bearing 26 separately, finishes compression mechanical part 21.Finish the compression mechanical part 21 and the motor section 22 of assembling, be fixed in the seal casinghousing 2.After rotary compressor 1 is finished, hoard in the bottom of seal casinghousing 2, form oil sump 45 from the refrigerator oil 12 that discharge pipe 3 is enclosed.
Carry rotary compressor 1, enclosing HC is the freeze cycle of refrigerant, from the discharge pipe 3 of rotary compressor 1, connects condenser 5, capillary tube 7, vaporizer 6, suction pipe 14 in order successively, finishes freeze cycle.Generally speaking, produce liquid hammer in order to prevent rotary compressor from sucking liquid coolant, common configuration has liquid container 13 between vaporizer 6 and suction pipe 14, still, cancels liquid container in the present embodiment.
The bottom of bent axle 27 is provided with an oil supply hole 8, and an end of axle fuel supply line 55 communicates with axle oil supply hole 8, and the other end perforate of axle fuel supply line 55 is in oil sump 45.This fuel supply line 55 can be provided with as required, when the refrigerator oil 12 of the enough axles of the length of bent axle 27 oil supply hole 8 direct perforates in oil sump 45, can be omitted.After bent axle 27 revolutions, the refrigerator oil 12 in the oil sump 45 draws by axle oil supply hole 8, each slip surface, supplementary bearing 26 and the main bearing 25 of lubricated bent axle 27.From the periphery of eccentric shaft 17, fuel feeding is given the refrigerator oil 12 of piston 28 inside, via the gap up and down of piston 28, and the compression chamber of lubricated cylinder 23.
Meanwhile, the refrigerator oil 12 in the oil sump 45 is given the vane slot of cylinder 23 and the side slip face of slide plate 29 from slide plate oil supply hole 51 fuel feeding, and lubricated these places.By above explanation, finish the required whole lubrication systems of compression mechanical part 21.
The lubrication system of present embodiment has following feature: be opened on axle fuel supply line 55 and the slide plate oil supply hole 51 of oil sump 45 by configuration, even the oil mass of oil sump 45 or pasta are few again, and also can fuel feeding and lubricatedly give whole slide members.Therefore, can reduce the oil sealing amount of compressor significantly.
Referring to Fig. 2, showed that rotary compressor 1 is on-stream or stop in refrigerator oil 12 and liquid coolant 16 distributions.
When rotary compressor 1 was on-stream, low-pressure gas or low pressure liquid refrigerant via suction pipe 14 and cylinder 23, became pressurized gas from vaporizer 6, in the seal casinghousing 2 that spues.
In the present embodiment, the temperature of refrigerator oil 12 is 0 ℃～80 ℃, and pressure is 0.1Mpa～2.5Mpa; The proportion of the refrigerator oil 12 in above-mentioned scope is that the ratio of refrigerant is great than the HC of condensation, and with HC be that the dissolubility of refrigerant is less than or equal to 15%.That is to say that refrigerator oil 12 and HC are that the dissolubility maximum of refrigerant can reach 15%.
Therefore, the refrigerant that sucks cylinder 23 be gaseous state during, the temperature of the pressurized gas that spue from cylinder uprises, the refrigerant of seal casinghousing 2 inside is the state of gas.At this moment, when refrigerator oil 12 and refrigerant were immiscible, gas coolant can not be dissolved in the refrigerator oil 12, and just refrigerator oil 12 is trapped in the bottom of seal casinghousing 2.
But when refrigerator oil 12 mixed with refrigerant, according to the temperature of refrigerator oil 12 and the pressure of seal casinghousing 2, the refrigerator oil 12 that dissolves a part of gas was trapped in the bottom of seal casinghousing 2.On the other hand, when cylinder 23 sucked liquid coolants, the temperature of the pressurized gas that spue from cylinder 23 was low, and a part of gas coolant is dissolved in the refrigerator oil 12.As shown in Figure 2, the top delay of refrigerator oil 12 has liquid coolant 16.
In the present embodiment, in the temperature and pressure scope of above-mentioned appointment, the dissolving ratio maximum that is dissolved in the refrigerator oil 12 of the oil sump 45 that is trapped in seal casinghousing 2 bottoms can reach 15%, the viscosity of refrigerator oil 12 can descend hardly, and the slide member of compression mechanical part 21 inside can obtain lubricated fully.And undissolvable refrigerant can be trapped in the top of refrigerator oil 12, so can not influence the lubricated of slide member.
On the other hand, rotary compressor 1 is under the condition that stops for a long time, and a large amount of liquid coolants 16 can be trapped in the seal casinghousing 2.Even under such condition, because refrigerator oil 12 is trapped in the bottom, liquid coolant is trapped on the refrigerator oil 12, the fuel feeding obstacle of the compression mechanical part 21 that is produced in the time of therefore avoiding compressor start.
In order to give compression mechanical part 21, and dispose a fuel supply line 55 and slide plate oil supply hole 51, have the effect that can reduce oil sump 45 oil masses from the bottom fuel feeding of oil sump 45.After reducing oil mass, the coolant quantity that is dissolved in refrigerator oil 12 also can reduce.Therefore, the coolant quantity of enclosing seal casinghousing 2 also can tail off, thereby just can the required refrigerant enclosed volume of minimizing system.
By the effect and the effect irrelevant with the amount of the liquid coolant that is trapped in seal casinghousing 2, that the energy fuel feeding supplies with full-bodied refrigerator oil 12 for compression mechanical part 21 of above-mentioned minimizing refrigerant enclosed volume, just can cancel the use of required in the past liquid container 13.
Just as described above, the present invention is in the air conditioner or freezing machine of refrigerant at the HC that uses R290, R600a etc.:
(1) uses than the heavy refrigerator oil of above-mentioned refrigerant, can make refrigerator oil be trapped in the bottom of seal casinghousing.And, defining the solubility of refrigerant and refrigerator oil, maximum can only reach 15%, thus the decline of restriction refrigerator oil viscosity.Consequently, can guarantee to give good the lubricating of compression mechanical part.
(2) simultaneously, because limited the refrigerant meltage in the refrigerator oil, so the refrigerant enclosed volume in the energy minimizing system.And, reach minimum by making the required refrigerating machine oil mass of fuel feeding, thereby improve the effect that reduces the refrigerant enclosed volume.
(3), just can cancel and use liquid container by above-mentioned (1) and (2) complementary effect.
By above General, need not sacrifice the reliability of compressor, also can be the HC in the system that the refrigerant enclosed volume minimizes, thereby reach the purpose that improves Security further.
In sum, technology disclosed by the invention imports industry easily, and produces in batches easily.
Claims (8)
1. HC refrigerant rotary compressor, in the seal casinghousing (2) that the high pressure side is pressed in as housing, motor section (22) is set, be configured in the compression mechanical part (21) of motor section (22) downside and enclose the interior refrigerator oil (12) of seal casinghousing, portion comprises cylinder (23) by motor section compressor driven structure, eccentric rotating piston (28) in cylinder, the slide plate (29) that tip and piston periphery are slided and joined, the bent axle (27) that is driven by motor section, support the main bearing (25) and the supplementary bearing (26) of bent axle, the temperature that it is characterized in that refrigerator oil is 0 ℃～80 ℃, and pressure is 0.1Mpa～2.5Mpa; The proportion of refrigerator oil is that the ratio of refrigerant is great than the HC of condensation, and with HC be that the dissolubility of refrigerant is less than or equal to 15%.
2. HC refrigerant rotary compressor according to claim 1 is characterized in that described refrigerator oil (12) in the time of 40 ℃, and its viscosity is less than 80mm
2/ sec.
3. HC refrigerant rotary compressor according to claim 1 and 2 is characterized in that described HC is that refrigerant is R290 or R600a.
4. a HC refrigerant rotary compressor according to claim 1 is characterized in that in the suction loop of described compression mechanical part (21), cancellation liquid container (13).
5. HC refrigerant rotary compressor according to claim 1, it is characterized in that described supplementary bearing (26) is provided with slide plate oil supply hole (51), the slide plate oil supply hole communicates with the vane slot that holds slide plate (29), is trapped in the slip surface of refrigerator oil (12) fuel feeding of seal casinghousing (2) bottom to slide plate by slide plate oil supply hole handle.
6. HC refrigerant rotary compressor according to claim 5 is characterized in that the bottom of described bent axle (27) is provided with an oil supply hole (8), and the perforate of axle oil supply hole is in the refrigerator oil (12) that is arranged in seal casinghousing (2) bottom.
7. HC refrigerant rotary compressor according to claim 6, the bottom that it is characterized in that described bent axle (27) is provided with a fuel supply line (55), one end of axle fuel supply line communicates with axle oil supply hole (8), and the other end perforate of axle fuel supply line is in refrigerator oil (12).
8. the application of a HC refrigerant usefulness rotary compressor according to claim 1 is characterized in that described rotary compressor carries in air conditioner or freezing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101936516A CN102052317A (en) | 2009-10-30 | 2009-10-30 | Rotary compressor for HC (hydrocarbon) coolant and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101936516A CN102052317A (en) | 2009-10-30 | 2009-10-30 | Rotary compressor for HC (hydrocarbon) coolant and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102052317A true CN102052317A (en) | 2011-05-11 |
Family
ID=43956965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101936516A Pending CN102052317A (en) | 2009-10-30 | 2009-10-30 | Rotary compressor for HC (hydrocarbon) coolant and application thereof |
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| Country | Link |
|---|---|
| CN (1) | CN102052317A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388582A (en) * | 2012-05-11 | 2013-11-13 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN103994073A (en) * | 2014-05-22 | 2014-08-20 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN104373349A (en) * | 2014-11-07 | 2015-02-25 | 广东美芝制冷设备有限公司 | Rotary compressor and pump assembly thereof |
| CN104373354A (en) * | 2014-11-05 | 2015-02-25 | 合肥凌达压缩机有限公司 | Sliding vane compressor and lower flange thereof |
| CN105840508A (en) * | 2016-05-17 | 2016-08-10 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration circulation device comprising same |
-
2009
- 2009-10-30 CN CN2009101936516A patent/CN102052317A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388582A (en) * | 2012-05-11 | 2013-11-13 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN103994073A (en) * | 2014-05-22 | 2014-08-20 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN103994073B (en) * | 2014-05-22 | 2016-04-20 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN104373354A (en) * | 2014-11-05 | 2015-02-25 | 合肥凌达压缩机有限公司 | Sliding vane compressor and lower flange thereof |
| CN104373354B (en) * | 2014-11-05 | 2017-12-08 | 合肥凌达压缩机有限公司 | Slide vane compressor and its lower flange |
| CN104373349A (en) * | 2014-11-07 | 2015-02-25 | 广东美芝制冷设备有限公司 | Rotary compressor and pump assembly thereof |
| CN105840508A (en) * | 2016-05-17 | 2016-08-10 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigeration circulation device comprising same |
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Application publication date: 20110511 |