CN101749891A - Refrigerant compressor and freezing cycle device - Google Patents
Refrigerant compressor and freezing cycle device Download PDFInfo
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- CN101749891A CN101749891A CN200910008360A CN200910008360A CN101749891A CN 101749891 A CN101749891 A CN 101749891A CN 200910008360 A CN200910008360 A CN 200910008360A CN 200910008360 A CN200910008360 A CN 200910008360A CN 101749891 A CN101749891 A CN 101749891A
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- oil
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- refrigerator oil
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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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids 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
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids 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 both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids 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 both members having co-operating elements in spiral form where only one member is moving
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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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
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- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
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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
- F04C2240/40—Electric motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2223/00—Cellulosic materials, e.g. wood
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/902—Hermetically sealed motor pump unit
Abstract
An object of the invention is that, compared with the conventional refrigerant compressor, the acid value of a refrigerant oil of the refrigerant compressor and the refreezing cycle device using the same is prevented from increasing. The refrigerant sealed into the refrigerant compressor is R410A, R407 or R404A, and the refrigerant oil taking the polyol ester oil as a base oil and containing an alkyl glycidyl ester compound as an acid trap is used. The alkyl glycidyl ester compound has the structure represented by the following formula (1), wherein, R is independently a C4 to C12 alkyl.
Description
Technical field
The present invention relates in having used the domestic heat pump formula freeze cycle of HFC series coolant, guarantee that having used ester be that the refrigerator wet goods has the reliability under the water-disintegrable lubricated oil condition.
Background technology
That in the past, the cold-producing medium of family expenses room conditioning used is the R22 of HCFC system.But, consider that from the aspect of earth environment protection the cold-producing medium to HFC system not chloride in molecule changes.As its substitute, can enumerate the independent product of R32,125,134a or mix their R410A more than 2 kinds, R407C.But the HFC series coolant is because the polarized state of molecule is different with the cold-producing medium of HCFC system, and is therefore poor with the intermiscibility of in the past mineral oil, the oil return reduction in circulating.So, adopt following method, that is,, use artificial oils such as ester oil as refrigerator oil with essential solubility, oil return is guaranteed on the basic comprising ground that does not change freeze cycle.
But this refrigerator oil is water-disintegrable big, when in circulation moisture being arranged, will cause hydrolysis, is decomposed into raw fatty acid and alcohol.This raw fatty acid improves the value of the total acid number of refrigerator oil, consequently, causes the corrosive wear of sliding part.In addition, formed under the situation of fatty acid metal salts at raw fatty acid and metal reaction, can be attached to becomes the essential factor that circulation is stopped up in the circulation.
As its countermeasure, in patent documentation 1, disclose the method for in refrigerator oil, adding as the ring glycidyl ether compound of sour agent for capturing.In addition, in patent documentation 2, disclose the method for adding carbodiimide compound.In addition, in patent documentation 3, disclose as catching of the additive use of hydrocarbon (HC) cold-producing medium and belong to the method for the ethylene oxidic ester of epoxy based compound or glycidol ether etc. with the water content in oil of refrigerator oil or acid.
Though above-mentioned patent documentation 1 stability is high, yet owing to compare with the formation speed of the raw fatty acid that causes by hydrolysis etc., slower with the reactivity of acid, therefore can't catch aliphatic acid immediately.
Though above-mentioned patent documentation 2 and acid and water is reactive high, yet owing to consume immediately, though therefore big for the seizure effect of initial stage moisture, can't tackle a large amount of acid generation that causes by the thermal decomposition of refrigerator oil etc.
Though above-mentioned patent documentation 3 has been showed the use of epoxide etc. as sour agent for capturing, yet does not specify concrete material.In addition, be hydrocarbon as the cold-producing medium appointment.
Using as refrigerator oil under the situation of ester oil, the acid that generates because of hydrolysis etc. might cause the corrosive wear of sliding part, and the metal base that generates with metal reaction might cause that the action of motor-driven valve etc. is bad.
Summary of the invention
So, the objective of the invention is to, compare with coolant compressor in the past, suppress coolant compressor and used the acid number of refrigerator oil of its freezing cycle device to rise, improve durability.
Described purpose of the present invention can utilize following coolant compressor to realize, it is to take in: in storing the closed container of refrigerator oil, have rotor and stator motor, be inlaid in described epitrochanterian rotating shaft, by the coolant compressor of this rotating shaft with the compression unit of described motor binding, wherein, the cold-producing medium that is sealing into this coolant compressor is R410A, R407C or R404A, uses the refrigerator oil that contains the alkyl glycidyl ester compounds with polyalcohol ester oil as base oil, as sour agent for capturing.
In addition, described alkyl glycidyl ester compounds has the structure of following formula (1) expression.
Wherein, in the described formula, R represents that independently carbon number is 4～12 alkyl.
According to the present invention, can improve coolant compressor and use the durability of its freezing cycle device.
Description of drawings
Fig. 1 is the profile of explanation hermetic type coolant compressor.
Fig. 2 is the freeze cycle pie graph of basic used for refrigerator.
Fig. 3 is the freeze cycle pie graph of basic use in refrigeration system.
Fig. 4 is the water-disintegrable result of the test when having added 1000ppm moisture.
Fig. 5 is the water-disintegrable result of the test when having added 2000ppm moisture.
Wherein,
1 casing
2 compressor sections
3 motor
4 rotation whirlpool dishes (scroll)
5 fixed eddy plates
6 frames
7 bent axles
8 Euclidean rings
9 suction leads
10 rotors
11 stators
12 eccentric parts
13 axis holes
14 refrigerator oils
14a acid agent for capturing
15 compressors
16 freezing machines
17 expansion mechanisms
18 evaporimeters
19 cross valves
The specific embodiment
Below, in suitably with reference to accompanying drawing, embodiments of the present invention are elaborated.Coolant compressor in the present embodiment and the freezing cycle device that used it be primarily characterized in that as described later, with hydrogen fluorohydrocarbon (hydrofluorocarbon) as cold-producing medium, with the polyol ester of regulation as refrigerator oil.Here after the freezing cycle device to the coolant compressor that used present embodiment describes, this coolant compressor is described.
In the accompanying drawing of institute's reference here, Fig. 1 is the profile of hermetic type coolant compressor.In the hermetic type coolant compressor, revolution mode, vortex mode, reciprocating manner etc. are arranged, use the example of the hermetic type coolant compressor of vortex mode to describe.Wherein, Scrawl compressor causes that owing to contacting with fixed eddy plate formation face as sliding part rotation whirlpool dish temperature rises, and seldom rises to the temperature that the high high performance sour agent for capturing of survival rate reacts fully with therefore being difficult to moment.In addition,, contact, cause easily that therefore the temperature of sliding part rises because impeller forms point with cylinder for the situation of rotary compressor.For the situation of reciprocating-type compressor, though the formation face contact of cylinder and piston portion, because the refrigerator oil viscosity is low, the therefore serious oil film that forms causes the heating of sliding part easily.
This coolant compressor has been taken in compressor section 2 and motor 3 in the airtight casing 1 of double as reservoir compartment.Compressor section 2 is to rotate whirlpool dish 4, fixed eddy plate 5, frame 6, bent axle 7, Euclidean ring 8 as the main composition element.On casing 1, be sealedly connected with the suction lead 9 that is communicated with outer loop as closed container.Motor is made of rotor 10 and stator 11, is embedded with the bent axle 7 of cast iron on rotor 10.Bent axle 7 has eccentric part 12, and at one end side is formed with the axis hole 13 of hollow form.
In addition, the peripheral part of frame 6 is fixed on the closed container 1, possesses the bearing of the rotation of bearing bent axle 7.Rotation whirlpool dish 4 is installed on the eccentric part 12 of bent axle 7 with rotating freely, (Japanese: be equipped with Euclidean ring 8 in the groove on the support anti-ラ ッ プ Side), rotation whirlpool dish rotation does not take place does not revolve round the sun groove on being located at frame 6 with being free to slide with the anti-lap side of being located at rotation whirlpool dish 4.
In addition, storage has refrigerator oil 14 in the bottom, and this refrigerator oil is supplied with to sliding part.In refrigerator oil 14, be added with sour agent for capturing 14a.That is, have the slit (diagram slightly) of the electromagnetic wire that is used to reel in the stator 11 in motor 3, in its surface, as well-known, by the dielectric film covering, the dielectric film in the present embodiment is that resin is made by ester.
The freeze cycle of representing basic used for refrigerator among Fig. 2 constitutes.In the freezing cycle device that is made of coolant compressor 15, condenser 16, expansion mechanism 17, evaporimeter 18, coolant compressor 15 sucks the refrigerant gas of low-temp low-pressures and compresses, the refrigerant gas of ejection HTHP and carrying to condenser 16.The refrigerant gas of carrying to condenser 16 becomes the refrigerant liquid of HTHP when its heat is discharged in air, carry to expansion mechanism 17.The refrigerant liquid that passes the HTHP of expansion mechanism 17 becomes the damp steam of low-temp low-pressure because of throttle effect, carries to evaporimeter 18.The cold-producing medium that has entered evaporimeter 18 evaporates from absorbing heat on every side, and the refrigerant gas that has flowed out the low-temp low-pressure of evaporimeter 18 is inhaled into compressor 15, below repeats identical circulation.
In this freeze cycle constitutes, in refrigerator etc., need the evaporator temperature (below 40 ℃) of low temperature.If use the refrigerator oil with the intermiscibility difference of cold-producing medium here, then in heat exchanger or expansion mechanism, will accumulate the refrigerator oil that has separated with cold-producing medium, to the oil return reduction of compressor 15.
The freeze cycle of representing basic use in refrigeration system among Fig. 3 constitutes.In the refrigerating plant that constitutes by coolant compressor 15, condenser 16, expansion mechanism 17, evaporimeter 18, cross valve 19, coolant compressor 15 sucks the refrigerant gas of low-temp low-pressure and compresses, the refrigerant gas of ejection HTHP and carrying to cross valve 19.Be transported to the refrigerant flow path of cold-producing medium in the cross valve 19 here, be transported to condenser here.So, cold-producing medium will with Fig. 2 in the same manner counterclockwise around.
The refrigerant gas that is sent to condenser 16 becomes the refrigerant liquid of HTHP when its heat is discharged in air, carry to expansion mechanism 17.The refrigerant liquid that passes the HTHP of expansion mechanism 17 becomes the damp steam of low-temp low-pressure because of throttle effect, carries to evaporimeter 18.The cold-producing medium that has entered evaporimeter 18 evaporates from absorbing heat on every side, and the refrigerant gas that has flowed out the low-temp low-pressure of evaporimeter 18 is inhaled into compressor 1, below repeats identical circulation.
Owing to will change refrigerant flow path by switching cross valve 19, that is to say, cold-producing medium and above-mentioned explanation on the contrary clockwise around, so condenser 16 and evaporimeter 18 can interchange reactions.
In this freeze cycle, in room conditioning etc., need the evaporator temperature (below 10 ℃) of moderate temperature.If use the refrigerator oil with the intermiscibility difference of cold-producing medium here, then in heat exchanger or expansion mechanism, will accumulate the refrigerator oil that has separated with cold-producing medium, to the oil return reduction of compressor 15.
This used cold-producing medium does not contain chlorine for hydrogen fluorohydrocarbon system in molecule, therefore can't expect the lubricity of cold-producing medium self, reduces the abrasion resistance of compressor.By using described refrigerator oil, can guarantee the lubricity of cold-producing medium/refrigerator oil mixed liquor.As described polyalcohol ester oil, preferably synthetic by the aliphatic acid of polyalcohol and 1 valency, good heat stability be subjected to resistance type.
For example, as polyalcohol, have:
Pentaerythrite,
Dipentaerythritol.
For example, have as the aliphatic acid of 1 valency:
Valeric acid,
Caproic acid,
Enanthic acid,
Sad,
2-Methyl Butyric Acid,
2 methyl valeric acid,
2 methyl caproic acid,
2 ethyl hexanoic acid,
Isooctyl acid,
3,5,5-tri-methyl hexanoic acid etc. can be made independent a kind of aliphatic acid or two or more fatty acid mixeds uses.
Particularly in refrigerator oil, be preferably selected from least a with the group of the ester oil of the aliphatic acid of formula (2), (3) or (4) expression that in molecule, has at least 2 ester bonds as base oil.
(R
1-CH
2)
2-C-(CH
2-O-CO-R
2)
2…(2)
In the formula (2), R
1Represent independently that respectively hydrogen atom or carbon number are 1～3 alkyl, R
2Represent independently that respectively carbon number is 5～12 alkyl.
(R
1-CH
2)-C-(CH
2-O-CO-R
2)
3…(3)
In the formula (3), R
1And R
2With described synonym.
C-(CH
2-O-CO-R
2)
4…(4)
In the formula (4), R
2With described synonym.
Used refrigerator oil viscosity in the refrigerating plant of Fig. 2, Fig. 3 or the air conditioner (utilizing JIS K2283 to measure) though according to the kind of compressor and difference, yet in scroll compressor the preferred 40～100mm of 40 ℃ viscosity
2The scope of/s.In viscosity less than 40mm
2Under the situation of/s, the refrigerator oil viscosity of having dissolved cold-producing medium will reduce, and can't keep the oil film of compressor inside fully, can not guarantee lubricity.In addition, can not guarantee the sealing of compression unit.On the contrary, if viscosity surpasses 100mm
2/ s, then mechanical loss such as viscous drag, frictional resistance increases, and compressor efficiency is reduced.
For sour agent for capturing, if, then can't seeing enough acid less than 0.1 quality %, its addition catches effect, if the opposite 1 quality % that surpasses then can not fully be dissolved in the refrigerator oil and separates out with alkyl glycidyl ester compounds.So, be preferably 0.1～1.0 quality % as addition.
In addition, for organic insulation used in the compressor electric motor, the heat-resisting rank of electric insulation is by electric insulation JEC-6147 (electric association electrical specification investigation standard specification) regulation.But, the situation of the organic insulation of using for the refrigerating and air conditioning machine, owing to using in the special environment such in cold-producing medium atmosphere, therefore except temperature, also must consider the distortion sex change that inhibition is caused by pressure, in addition owing to also can contact with the such organic property compound of cold-producing medium or refrigerator oil, therefore also must the consideration solvent resistance, anti-extractibility, heat chemistry mechanical stability, anti-cold-producing medium etc.Here said anti-cold-producing medium is meant fine fisssure for example (coverlay being given the fine snake abdomen shape crackle that will produce when impregnated in the cold-producing medium behind the stress), blister situations such as (bubbles of the coverlay that the cold-producing medium that is absorbed by coverlay causes because of warm water rises).Need use the insulating materials of heat-resisting rank (the B kind is more than 130 ℃) as the insulating materials of use in refrigeration system.
The most frequently used insulating materials is PET (PETG) in the compressor.As purposes, with the coil insulation of the iron core of Distributed Winding motor in use membrane material, in the cladding material of the egress line of the lashing wire of coil, motor, use fibrous PET.
As dielectric film in addition, can enumerate:
PPS (polyphenylene sulfide),
PEN (PEN),
PEEK (polyether-ether-ketone),
PI (polyimides),
PA (polyamide) etc.
In addition, in the major insulation cladding material of coil, use:
The THEIC modified poly ester,
Polyamide,
Polyamidoimide,
Polyesterimide,
Polyesteramide acid imide etc., the preferred dual coating copper cash that uses the bilayer coating of having implemented polyesterimide-amide imide.Do not have special problem even in described refrigerator oil, add defoamer, lubricity improver, antioxidant, metal inert agents etc. in the embodiments of the invention yet.
As the method for the acid seizure performance of confirming refrigerator oil, utilize sealed tube test to implement heat endurance and water-disintegrable evaluation.Used R410A as cold-producing medium, used polyalcohol ester oil, specifically, used the ester oil that is obstructed by the VG68 that constitutes as the pentaerythrite of alcohol, as the isooctyl acid of aliphatic acid/different n-nonanoic acid (50/50) as refrigerator oil.
In addition, implemented sealed tube test as the organic insulation evaluation in the compressor.Used R410A as cold-producing medium, used polyalcohol ester oil, specifically, used the ester oil that is obstructed by the VG68 that constitutes as the pentaerythrite of alcohol, as the isooctyl acid of aliphatic acid/different n-nonanoic acid (50/50) as refrigerator oil.Dielectric film has used the PET film of heat-resisting rank (130 ℃ of B kinds), has used the dual covering thread of polyesterimide-polyamidoimide as enamel covered wire.
Assessment item to insulating materials describes.For dielectric film, measured stretching strength retentivity and the elongation retention before and after the test.With conservation rate more than 50% as target.In addition, measured appearance change or pencil hardness variation, coiling characteristic, insulation breakdown voltage (JIS C3003), in anti-cold-producing medium, observed fine fisssure and blister for enamel covered wire.For these projects, before and after test, not to be changed to target.
[embodiment 1]
The result of the sealed tube test that expression is carried out as water-disintegrable evaluation in table 1 and the table 4.Refrigerator oil is a polyalcohol ester oil, specifically, has used the ester oil that is obstructed by the VG68 that constitutes as the pentaerythrite of alcohol, as the isooctyl acid of aliphatic acid/different n-nonanoic acid (50/50).As the sealed tube test condition, the iron, copper, the aluminium that in the glass tube of internal diameter 10 φ, add long 50mm as catalyst, seal after injecting 5g refrigerator oil, the R410A of 1g as cold-producing medium, after 14 days, 21 days, 28 days, the survival rate of oily color, acid number, additive, the outward appearance of catalyst etc. have been measured 150 ℃ of maximum heating.Moisture in the oil is made as 1000ppm.As the kind of sour agent for capturing,, the alkyl glycidyl ester (0.9 quality %) (formula 1) of present embodiment and 1 alicyclic epoxy compound (0.5 quality %) (formula 5) have as a comparative example been added respectively for unified epoxide equivalent.
Wherein, in the described formula, R represents that independently carbon number is 4～12 alkyl.
The acid number of the refrigerator oil after the test and the mensuration of additive according to be JIS K 2501 " petroleum product and lubricating oil-neutralization number test method ".For form and aspect according to be JIS K 2580 " petroleum product color test method ".The survival rate of additive is to utilize to carry out according to the method for JIS K 2501 " petroleum product and lubricating oil-neutralization number test method ".
The result who estimates is, is under the situation of 1000ppm at moisture, for the situation of embodiment 1, even also can't see the rising of acid number after heating in 28 days, and under the situation of comparative example 1, can see the rising up to the acid number of 0.05mgKOH/g after heating in 28 days.
If measure the survival rate of sour agent for capturing, although sour agent for capturing is also remaining 47% in the comparative example 1, yet acid number rises to 0.05mgKOH/g.Based on this situation as can be known, the reaction speed of acid seizure is unable to catch up with the formation speed of acid.The acid that is generated might cause the corrosion of sliding part, or generates metal base with metal reaction, and the valve obstruction is caused misoperation.
Table 1
Water-disintegrable result of the test (moisture 1000ppm)
[embodiment 2]
The change condition has been implemented the sealed tube test that carries out as water-disintegrable evaluation in the same manner with embodiment 1.Evaluation result is shown among table 2 and Fig. 5.Refrigerator oil is a polyalcohol ester oil, specifically, has used the ester oil that is obstructed by the VG68 that constitutes as the pentaerythrite of alcohol, as the isooctyl acid of aliphatic acid/different n-nonanoic acid (50/50).As the sealed tube test condition, the iron, copper, the aluminium that in the glass tube of internal diameter 10 φ, add long 50mm as catalyst, seal after injecting 5g refrigerator oil, the R410A of 1g as cold-producing medium, after 20 days, 40 days, the survival rate of oily color, acid number, additive, the outward appearance of catalyst etc. have been measured 150 ℃ of maximum heating.Moisture in the oil is made as 2000ppm.
The result who estimates is, at moisture is under the situation of 2000ppm, refrigerator oil for the embodiment 2 that has added the alkyl glycidyl ester, heating back acid number did not rise in 20 days, even also only stay in the so slight variation of 0.03mgKOH/g after the heating in 40 days, yet refrigerator oil for the comparative example 2 that has added the alicyclic epoxy compound, just begin to rise in the moment of heating in 20 days, be 0.04mgKOH/g, heated in the product at 40 days, can see the 1.13mgKOH/g significantly rising of acid number like this.
But if measure the survival rate of sour agent for capturing, then in the refrigerator oil of comparative example 2, the survival rate of sour agent for capturing is up to 67%, distinguishes that the reaction speed of sour agent for capturing is unable to catch up with the formation speed of aliphatic acid.
Table 2
Water-disintegrable result of the test (moisture 2000ppm)
[embodiment 3]
Expression is as the result of the oil resistant/sealed tube test that the cold-producing medium evaluation is carried out of dielectric film in the table 3.Refrigerator oil has used the polyalcohol ester oil of VG68.As the sealed tube test condition, in the glass tube of internal diameter 10 φ, be processed as the insulating materials of the dumbbell shape of long 50mm, wide 3mm as trial target, as refrigerator oil is polyalcohol ester oil, specifically, injecting the be obstructed ester oil of 5g by the VG68 that constitutes as the pentaerythrite of alcohol, as isooctyl acid/different n-nonanoic acid (50/50) of aliphatic acid; 0.5g seal behind the R410A as cold-producing medium,, measured the outward appearance, intensity of oily color, acid number, trial target etc. 130 ℃ of at most heating after 40 days.Moisture in the oil is made as 50ppm.As the kind of sour agent for capturing, added alkyl glycidyl ester (0.9 quality %).
The acid value measuring of the refrigerator oil after the test according to be JIS K 2501 " petroleum product and lubricating oil-neutralization number test method ".For form and aspect according to be JIS K 2580 " petroleum product color test method ".In addition, the hot strength of insulating materials is to utilize to carry out according to the method for JIS C 2111 " electrically-insulating paper test method ".
The result who estimates is not see the deterioration of refrigerator oil for form and aspect, acid number etc.Can confirm also that for insulating film material outward appearance, hot strength, flexibility etc. are not unusual.
This test method is an accelerated test, if be scaled actual working year number then be equivalent to more than 10 years.Because it is equal with product in the past, that is to say to think therefore that even the product displacement of product that will be in the past and embodiment, also not having influences.
Table 3
The oil resistant of PET film/cold-producing medium result of the test
[embodiment 4]
Expression is as the result of the oil resistant/sealed tube test that the cold-producing medium evaluation is carried out of enamel-covered wire in the table 4.Refrigerator oil is a polyalcohol ester oil, specifically, has used the ester oil that is obstructed by the VG68 that constitutes as the pentaerythrite of alcohol, as the isooctyl acid of aliphatic acid/different n-nonanoic acid (50/50).As the sealed tube test condition, in the glass tube of internal diameter 10 φ, add the twisted-pair feeder of long 18cm and the enamel-covered wire of 10cm as trial target, after injecting the polyalcohol ester oil of 5g as refrigerator oil, the R410A of 0.5g, seal as cold-producing medium, 150 ℃ of at most heating after 40 days, the outward appearance, coverlay intensity of oily color, acid number, trial target etc. have been measured.Moisture in the oil is made as 50ppm.As the kind of sour agent for capturing, added alkyl glycidyl ester (0.9 quality %).
The acid value measuring of the refrigerator oil after the test according to be JIS K 2501 " petroleum product and lubricating oil-neutralization number test method ".For form and aspect according to be JIS K 2580 " petroleum product color test method ".In addition, the evaluation of enamel-covered wire is to utilize to carry out according to the method for JIS C 3003 " enamel-covered wire test method ", JIS C3202 " enamel-covered wire ".The result who estimates is not see the deterioration of refrigerator oil.For enamel covered wire, pencil hardness is 5H, and coiling characteristic aspect is even with self diameter coiling, also do not see be full of cracks etc. in coverlay, very good.Insulation breakdown voltage is also roughly equal with initial value, can confirm from outward appearance, does not produce fine fisssure or blister, can satisfy target.
This test method is an accelerated test, if be scaled actual working year number then be equivalent to more than 10 years.
Because it is equal with product in the past, that is to say to think therefore that even the product displacement of product that will be in the past and embodiment, also not having influences.
Table 4
The oil resistant of enamel-covered wire/cold-producing medium result of the test
[embodiment 5]
Carry on room conditioning having enclosed the screw compressor that is added with the polyalcohol ester oil of alkyl glycidyl ester compounds as sour agent for capturing, implemented 90 days real machine evaluation test.Added the R410A of 1600g as cold-producing medium, refrigerator oil is a polyalcohol ester oil, specifically, has enclosed the ester oil 460ml that is obstructed by the VG68 that constitutes as the pentaerythrite of alcohol, as isooctyl acid/different n-nonanoic acid (50/50) of aliphatic acid.Added the alkyl glycidyl ester of the present invention of 0.9 quality % as sour agent for capturing.Analyzed the refrigerator oil after refrigerator oil is tested, results verification does not have the rising of acid number, and additive is remaining more than 50%.Do not see unusually for motor insulation material yet.
The industrial possibility of utilizing
The present invention relates to use the compressor of hydrogen fluorohydrocarbon (HFC) cold-producing medium, also gone for having carried in the refrigerating plant, air-conditioning equipment of this compressor.
Claims (5)
1. coolant compressor, it is to take in: in storing the closed container of refrigerator oil, have rotor and stator motor, be inlaid in described epitrochanterian rotating shaft, by the coolant compressor of this rotating shaft with the compression unit of described motor binding, it is characterized in that
The cold-producing medium that is sealing into this coolant compressor is R410A, R407C or R404A,
Use with polyalcohol ester oil as base oil and contain the refrigerator oil of alkyl glycidyl ester compounds as sour agent for capturing.
2. freezing cycle device, it is to comprise compressor, condenser, expansion mechanism and evaporimeter at least and the freezing cycle device of refrigerant piping that they are connected, it is characterized in that,
Described compressor is made as the coolant compressor of claim 1.
3. freezing cycle device according to claim 2 is characterized in that, described alkyl glycidyl ester compounds has the structure of following formula (1) expression,
In the described formula, R represents that independently carbon number is 4～12 alkyl.
4. freezing cycle device according to claim 2 is characterized in that, is added with the described alkyl glycidyl ester compounds of 0.1～1.0 quality %.
5. coolant compressor according to claim 1 is characterized in that, used organic material is to reach the material that chemically can not suffer deterioration at physics in the described coolant compressor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-316345 | 2008-12-12 | ||
| JP2008316345A JP2010139171A (en) | 2008-12-12 | 2008-12-12 | Refrigerant compressor and refrigerating cycle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101749891A true CN101749891A (en) | 2010-06-23 |
Family
ID=42349447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910008360A Pending CN101749891A (en) | 2008-12-12 | 2009-02-26 | Refrigerant compressor and freezing cycle device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2010139171A (en) |
| KR (1) | KR20100068143A (en) |
| CN (1) | CN101749891A (en) |
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| CN104662476A (en) * | 2012-09-28 | 2015-05-27 | 富士胶片株式会社 | Photosensitive resin composition and production method for pattern using same |
| CN105658778A (en) * | 2013-10-02 | 2016-06-08 | 吉坤日矿日石能源株式会社 | Refrigerator oil composition and refrigerator |
| CN105907376A (en) * | 2010-12-20 | 2016-08-31 | 日立空调·家用电器株式会社 | Compressor for refrigeration and air-conditioning, and refrigerating and air-conditioning apparatus |
| CN109852456A (en) * | 2017-11-30 | 2019-06-07 | 中国海洋石油集团有限公司 | A kind of long drain period diesel engine oil composition |
| CN110272777A (en) * | 2018-03-13 | 2019-09-24 | Jxtg能源株式会社 | Refrigerator, the use of refrigerator oil and manufacturing method, the method for inhibiting oligomer dissolution, refrigerator oil, working fluid composition |
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| JP2015014395A (en) * | 2013-07-04 | 2015-01-22 | 日立アプライアンス株式会社 | Air conditioner |
| WO2017199516A1 (en) * | 2016-05-17 | 2017-11-23 | 三菱電機株式会社 | Refrigeration cycle device |
| CN110514415A (en) * | 2018-05-22 | 2019-11-29 | Tcl瑞智（惠州）制冷设备有限公司 | A kind of the Motor Components endurance testing device and method of compressor |
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| JPH08120288A (en) * | 1994-10-27 | 1996-05-14 | Hitachi Ltd | Refrigerator working medium and refrigerator using same |
| JPH08231972A (en) * | 1996-01-09 | 1996-09-10 | Hitachi Ltd | Refrigerating unit |
| JPH1037881A (en) * | 1996-07-22 | 1998-02-13 | Toshiba Corp | Rotary compressor |
| JPH11158478A (en) * | 1997-09-09 | 1999-06-15 | Hitachi Ltd | Refrigerator oil composition and refrigerating apparatus using the same |
| JP2005248773A (en) * | 2004-03-03 | 2005-09-15 | Hitachi Home & Life Solutions Inc | Refrigerating device and refrigerant compressor |
| JP2005283106A (en) * | 2005-03-16 | 2005-10-13 | Sanyo Electric Co Ltd | Refrigerating device |
| JP4855175B2 (en) * | 2006-08-04 | 2012-01-18 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricating oil composition for refrigerator |
| JP5462995B2 (en) * | 2007-03-27 | 2014-04-02 | Ｊｘ日鉱日石エネルギー株式会社 | Refrigerator oil and working fluid composition for refrigerator |
| WO2008120536A1 (en) * | 2007-03-29 | 2008-10-09 | Nippon Oil Corporation | Refrigerator oil composition and working fluid composition for refrigerating machine |
| CN106281575A (en) * | 2007-04-18 | 2017-01-04 | 出光兴产株式会社 | Lubricating oil composition for refrigerator and compressor using the same |
-
2008
- 2008-12-12 JP JP2008316345A patent/JP2010139171A/en active Pending
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2009
- 2009-02-13 KR KR1020090011664A patent/KR20100068143A/en not_active Application Discontinuation
- 2009-02-26 CN CN200910008360A patent/CN101749891A/en active Pending
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| CN105907376A (en) * | 2010-12-20 | 2016-08-31 | 日立空调·家用电器株式会社 | Compressor for refrigeration and air-conditioning, and refrigerating and air-conditioning apparatus |
| CN104662476A (en) * | 2012-09-28 | 2015-05-27 | 富士胶片株式会社 | Photosensitive resin composition and production method for pattern using same |
| CN104662476B (en) * | 2012-09-28 | 2019-04-23 | 富士胶片株式会社 | Photosensitive polymer combination, the manufacturing method of pattern, the manufacturing method of cured film, organic EL display device and liquid crystal display device |
| CN105658778A (en) * | 2013-10-02 | 2016-06-08 | 吉坤日矿日石能源株式会社 | Refrigerator oil composition and refrigerator |
| CN105658778B (en) * | 2013-10-02 | 2019-03-05 | 吉坤日矿日石能源株式会社 | Refrigerated machine oil composition, refrigerator |
| CN109852456A (en) * | 2017-11-30 | 2019-06-07 | 中国海洋石油集团有限公司 | A kind of long drain period diesel engine oil composition |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2010139171A (en) | 2010-06-24 |
| KR20100068143A (en) | 2010-06-22 |
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Application publication date: 20100623 |