CN101133142A - Noise reduction additive - Google Patents

Noise reduction additive Download PDF

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Publication number
CN101133142A
CN101133142A CNA2006800071462A CN200680007146A CN101133142A CN 101133142 A CN101133142 A CN 101133142A CN A2006800071462 A CNA2006800071462 A CN A2006800071462A CN 200680007146 A CN200680007146 A CN 200680007146A CN 101133142 A CN101133142 A CN 101133142A
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China
Prior art keywords
compressor
additive
lubricant
noise
refrigeration system
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CNA2006800071462A
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Chinese (zh)
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CN101133142B (en
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S·博伊德
R·I·G·汤普森
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Lubrizol Corp
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Croda International PLC
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
    • C10M171/008—Lubricant compositions compatible with refrigerants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/283—Esters of polyhydroxy compounds
    • C10M2207/2835—Esters of polyhydroxy compounds used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/041—Triaryl phosphates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/02—Unspecified siloxanes; Silicones
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/09—Characteristics associated with water
    • C10N2020/097—Refrigerants
    • C10N2020/101—Containing Hydrofluorocarbons
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/18—Anti-foaming property
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/40—Low content or no content compositions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/30—Refrigerators lubricants or compressors lubricants

Abstract

Noise reduction in compressors used in refrigeration systems is achieved by introducing between 0.01% and 10% by weight of a phosphate ester additive to the compressor lubricant. The phosphate ester additive is of formula (I) wherein each R is independently alkyl, aryl or ring-substituted aryl. Preferred phosphate ester additives are ring-substituted aryl esters. Noise level reductions of at least 1dB at a frequency between 0 and 20KHz are achieved.

Description

Noise reduction additive
The present invention relates to phosphate ester additive and be used to reduce in the refrigerator compressor and the purposes of noise on every side, also relate to and reduce in the refrigerator compressor and the method for ambient noise by adding phosphate ester additive in the refrigeration lubricant in compressor.
At present, one of motivating force in the refrigerating industry is the manufacturing that the refrigeration system of energy efficiency is more arranged.This has caused having the generation of the refrigeration system of more efficient compressor, and its uses still less energy and running longer.Yet the undesirable side effect that energy efficiency improves is that compressor produces bigger noise.
Can produce the reduction that the foamy additive solves the refrigerator compressor noise by in refrigeration lubricant, adding in the past.It is believed that foam can reduce compressor noise to the propagation of compressor case by reducing vibration and noise.Yet the method for noise has very big shortcoming in this reduction compressor.
At first, the excessive generation foam of refrigeration lubricant can produce harmful effect to refrigeration system, for example aggravates carrying secretly of lubricant, enters outward in other parts of refrigeration system thereby this lubricant is transported to compressor.This can cause the compressor internal lubricant to lack, and this means that compressor is more easy to wear.And lubricant is carried secretly and is covered on the heat transfer surface of condenser, and this causes reduction heat passage in the refrigeration system.
Secondly, producing the most general additive of foamy in refrigeration lubricant is siliceous additive, and known these additives have shortcoming.For example, found that siliceous additive stops up the kapillary in the refrigeration system.Also find the siliceous powdered solid of additive thermolysis, this can hinder process of refrigeration.Therefore, for example, when compressor attached to the support of refrigeration system on the time must be carefully do not have residual lubricant and siliceous additive in this zone that will brazing.Also known siliceous additive hinders the painted process.
Triaryl phosphate be widely used as oil with synthetic base oil (base stock) hydraulic efficiency oil, tractor fluid and flyer turbine and piston engine lubricant in antiwear additive.Generally acknowledge when the content of triaryl phosphate is at most 2wt% in lubricant the most effectively, be preferably 1.5wt%.
Triaryl phosphate mainly is used as the component of flyer hydraulic efficiency oil or is used as the solvent of commercial run.Can avoid this phosphoric acid ester degraded to discharge in the application of phenol, they are as antiwear additive, and they also are used in the metal processing.
Find that surprisingly the phosphate ester additive that adds above-mentioned open type in the lubricant of refrigeration system compressor has reduced in the compressor and noise on every side and make that lubricant is minimum to bubble.And this phosphate ester additive is not siliceous.
Therefore, the invention provides the alkyl, aryl of 0.01-10wt%, in the application of phosphotriester in compressor lubricant of substituted aryl or aralkyl on the aromatic ring, with in the refrigeration system compressor and frequency on every side be that the noise of 0-20kHz reduces 1dB at least.
The present invention also provide with in the refrigeration system compressor and frequency on every side be that the noise of 0-20kHz reduces the method for 1dB at least, comprise the alkyl that adds 0.01-10wt% in the lubricant in compressor, aryl, the phosphotriester additive of substituted aryl or aralkyl on aromatic ring.
This refrigeration system comprises compressor, condenser, expansion gear and vaporizer.Liquid refrigerant evaporates in vaporizer to provide refrigeration system required cooling.This refrigerant gas is by compressor then, and it is compressed to condensing pressure there.For example water or air are condensed into liquid with this superheated condensing agent to use heat-eliminating medium in condenser.This liquid refrigerant reduces pressure by expansion valve and turns back in the vaporizer then.
Noise stems from from noise source and passes solid (compressor casing and pipeline), liquid (lubricant) and the transmission of gaseous media (refrigeration agent) to the energy of the different frequency of compression case, and producing pressure wave thus is noise.Compressor noise source interior and on every side comprises: the inhalation flow in the compressor that flow characteristics caused of refrigerant gas, and these flow characteristicss itself depend on the operational conditions of compressor; The noise that comes from the stirring of lubricant in compressor, this stirring be need to come in the mechanical part of compressor lubricant delivery lubricated; The lubricant that drips from compressor pump with from the compression case top and splash on the compressor base frame subsequently and compression case on lubricant; The motor that comes from compressor self; Also come from the opening and closing of outlet valve.The noise that comes from different noise sources has different frequencies, generally at 0.5-20kHz.For example for Maris DC compressor, inhalation flow is generally at 500Hz, and the stirring of lubricant in compressor is generally at 2.5kHz with drip and spatter generally 5 and 6.3kHz.
The phosphate ester additive that the present invention uses is the phosphotriester of the aryl or aralkyl of alkyl, aryl, (on aromatic ring) replacement, just molecular formula:
O＝P-[O-R] 3(I)
Wherein R independently is alkyl, aryl or cyclosubstituted aryl.
Especially, this phosphate ester additive can be trialkyl phosphates and preferably have molecular formula (II):
O＝P-[O-R 1] 3 (II)
Each R wherein 1Can be identical or different and be selected from alkyl, preferred 1-10 carbon atom with 1-20 carbon atom.Each R 1Can be saturated or unsaturated independently, preferred saturated, and can be independently straight chain or branching.
This phosphate ester additive can be triaryl or three (cyclosubstituted) aryl phosphate ester and preferably have molecular formula (III)
O＝P-[O-Ph(R 2) x] 3 (III)
Wherein Ph is a phenyl, and x is the integer of 0-5, when x＞0, and each R for each Ph group 2Be alkyl that can be identical or different and can be identical or different for each x.Each R 2The alkyl that preferably has 1-20 carbon atom, preferred 1-10 carbon atom, particularly 1-6 carbon atom.Each R 2Can be saturated or unsaturated independently, preferred saturated, and can be independently straight chain or branching.Preferably, x is the integer of 1-5, preferred 1-3 and, more preferably 1 or 2.
This phosphate ester additive can be three aralkyl phosphoric acid ester and preferably have molecular formula (IV)
O＝P-[0-R 3] 3 (IV)
Each R wherein 3Be independently selected from the defined R of above molecular formula (II) 1Group and above molecular formula (III) be defined-Ph (R 2) xGroup, condition are at least one R 3Group is R 1Group and at least one R 3Group is-Ph (R 2) xGroup.
Preferably, in the present invention the phosphate ester additive of Shi Yonging is the cyclosubstituted triaryl phosphate of molecular formula (III).The specific examples of suitable additive comprises the triphenyl of trimethylphenyl phosphoric acid ester, three (xylyl) phosphoric acid ester (trixylenyl phosphate), tri-isopropyl benzene base phosphoric acid ester, tert-butylation, preferred trimethylphenyl phosphoric acid ester.
The amount of additive in lubricant is 0.01-10wt%, preferred 0.1-7wt%, particularly 1-5wt%.
In the compressor and noise level on every side be lowered 1dB at least, preferred 1.5dB at least, more preferably 2dB at least.
In order to measure in the compressor and on every side noise level, this compressor is placed on the steel socket in the acoustical chamber.
Acoustical chamber through specialized designs to reduce background noise and vibration.It is built up by plasterboard and the fiberglass that is clipped in the two-layer plasterboard.Cover with open-cell foam materials on the inner plasterboard internal surface.This acoustical chamber self is placed on the rubber pad.Compressor is connected with support in the refrigeration system via vibrationless flexible pipe, and refrigeration system is in the outside of acoustical chamber, and can be placed in the independent room.The lubricant and the refrigeration agent that in system, add the adding phosphate ester additive of appropriate amount.Make this system operation several minutes so that noise level reaches steady state, as expected before the measurement noise level, noise level height when system starts.
The microphone (on average having 4-5 around compressor casing) that use is placed on different positions comes the measurement noise level, and value is averaged.The position of general microphone is positioned at directly over the compressor casing top one, the place ahead of compressor casing and each one at rear and in each side of compressor casing each one.For each compressor of accepting test, make microphone and compressor apart from optimization.Generally microphone is placed on from the position of compressor 5-50cm preferred 10-30cm.Microphone was connected with real-time fast Fourier transform (FFT) analyser, and it is recorded in the signal of each microphone point through 20 seconds period.This fft analysis instrument becomes noise-measuring value and frequency spectrum with conversion of signals in time.
The existence of additive causes the foaming of compressor internal lubricant minimum.By the preferred no more than 10mm of foam height that the lubricant that through 10 minutes the refrigerant gas bubbling is passed in measuring tube to contain the 0.01-10wt% phosphate ester additive is determined, more preferably no more than 5mm, no more than especially 4mm.
Set up refrigeration system with compressor as discussed above.This compressor also can have viewing window in its front, to measure the foam height when refrigeration system generation when compressor lubricant contains operation under the situation of phosphate ester additive.
When adding the phosphate ester additive of 0.01-10wt% in compressor lubricant, the foamy height of the viewing window by measuring the refrigeration system compressor front and this definite foam height preferably is not higher than 2.5mm is more preferably no higher than 2mm.
This compressor lubricant is selected from polyalkylene glycol, polyol ester, diester, carbonic ether, polyvingl ether, polyalphaolefin and alkylbenzene and their mixture.Preferred oil is mixture, polyvingl ether and the diester of polyol ester, polyol ester and alkylbenzene.Particularly preferred oil is the mixture of polyol ester or polyol ester and alkylbenzene.
Direct esterification method by standard prepares the polyol ester that is particularly suitable for the present invention's use from polyvalent alcohol and monocarboxylic acid.Also can prepare polyol ester by the transesterify route.At " Synthetic lubricants and high-performance functional fluids ", the 2nd version is edited by L.R Rudnick and R.L.Shubkin, has described this two kinds of routes in the 70-71 page or leaf.Particularly preferably be the polymerization route that does not use catalyzer.Especially preferably be selected from neopentyl glycol, TriMethylolPropane(TMP) and tetramethylolmethane and their dipolymer and trimeric alcohol and one or more and be selected from C straight chain and/or branching from one or more 5-C 18Acid, preferred C 5-C 18Acid and more preferably C 5-C 9The acid of acid prepares polyol ester.
The preferred polyhydric alcohols ester has at the 5cSt at least under 40 ℃ but is not more than the kinematic viscosity of the kinematic viscosity of 240cSt and the 1.5cSt at least under 100 ℃.
The preferred polyhydric alcohols ester has the pour point less than-30 ℃, is more preferably less than-40 ℃.The preferred polyhydric alcohols ester has the acid number less than 0.04mgKOH/g.The preferred polyhydric alcohols ester has the water-content less than 50ppm.The preferred polyhydric alcohols ester has the hydroxyl value less than 5mgKOH/g.The example of preferred polyhydric alcohols ester comprises the polyol ester in the EMKARATE  RL scope that can obtain from the Uniqema Ltd of firm of ICI.
Also comprise other lubricant additive that one or more have known effect according to compressor lubricant of the present invention, its content is the 0.0001-20wt% of lubricant weight, more preferably 0.01-10wt%, especially preferably 0.01-5wt%.Suitable additive comprises antioxidant, antiwear agents, extreme pressure agent, acid scavenger, stablizer, tensio-active agent, viscosity index improver, corrosion inhibitor, metal inactivator or passivator, lubrication modifier or oiliness improver and friction improver.
Refrigeration agent in the refrigeration system comprises Hydrochlorofluorocarbons (HCFC), hydrogen fluorohydrocarbon (HFC) aptly, contains at least a HFC, blend, carbonic acid gas or the ammonia of HCFC or the refrigeration agent of the two.Preferred this refrigeration agent does not contain any chlorine atom.Especially, this refrigerant gas is the blend of HFC or multiple HFC.Suitable HFC refrigerant gas comprises R-134a (1,1,1, the 2-Tetrafluoroethane), R-32 (methylene fluoride), R-125 (1,1,1,2,2-pentafluoride ethane), R-152a (1,1 C2H4F2 C2H4F2), R-143a (1,1, the 1-Halothane) and their mixture and R-400 and R-500 series.Also can be included in general findable other component in the refrigerant blend in the refrigerant gas.The hydrocarbon that these other components comprise hydrocarbon, particularly have a 1-6 carbon atom is propane, Trimethylmethane, butane, pentane and hexane for example, and fluorinated hydrocarbons and other refrigeration agent be carbonic acid gas for example.
Illustrate the present invention with following non-limiting example with for the reference of accompanying drawing, Fig. 1 is the synoptic diagram of test set of simply bubbling, and states among this embodiment 3 below.
For the following examples 1 and 2, following measurement noise level.Compressor is placed on the steel socket in the acoustical chamber.This acoustical chamber is that the length and width height of being made by plasterboard is the cubes of 1.5m, and has hermatic door.This acoustical chamber is built up by plasterboard, in the gypsum flaggy therebetween of two 0.64cm the thick fiberglass sheet of 2.54cm is arranged.The internal surface of inner gypsum flaggy covers with the thick open celled foam of 1.27cm.This acoustical chamber self is placed on the rubber pad.
Compressor is connected with support in the refrigeration system via vibrationless flexible pipe, and refrigeration system is on adjacent with it surface, the outside of acoustical chamber.With this refrigeration system emptying and 235g is contained in polyol ester lubricant " suction " compressor of phosphate ester additive of 5wt% of lubricant weight.The HFC134a refrigeration agent that in refrigeration system, adds 60g then.Allow system operation several minutes, generally at the most 30 minutes, so that noise level reaches steady state.
Use be placed on around the compressor casing 5 positions (be positioned at the compressor casing top directly over one, the place ahead of compressor casing and each one at rear and in each side of compressor casing each one) the 1.27cm microphone come the measurement noise level and value be averaged.Under each situation, microphone is apart from compressor casing 30mm.Microphone was connected with real-time fast Fourier transform (FFT) analyser, and it is recorded in the signal of each microphone point through 20 seconds period.This fft analysis instrument becomes noise-measuring value (dB) and frequency with conversion of signals in time.Then noise-measuring is averaged according to the microphone reading value of being got.
Embodiment 1
The compressor of Shi Yonging is a Samsung MK compressor in this embodiment.Following table 1 for example understand to be used frequency that this method the records noise level at 0-20kHz, and wherein compressor lubricant is available from the Emkarate of Uniqema TM RL10H polyol ester, it contain 5wt% according to phosphoric acid ester of the present invention.
Following table 2 for example understand to be used frequency that this method the records noise level at 350Hz-20kHz, and wherein compressor lubricant is available from the Emkarate of Uniqema RL 10H polyol ester, it contain 5wt% according to phosphoric acid ester of the present invention.
Under each situation, cause in the compressor and on every side noise has reduced 1dB at least according to the existence of phosphate ester additive of the present invention.
Table 1
Compressor lubricant The phosphate ester additive of the 5wt% of lubricant Noise level is in dB
Emkarate RL10H 72.6
Emkarate RL10H The trimethylphenyl phosphoric acid ester 68.8
Emkarate RL10H Durad 220 71.0
Emkarate RL10H Durad 220x 71.5
Table 2
Compressor lubricant The phosphate ester additive of the 5wt% of lubricant Noise level is in dB
Emkarate RL10H 43.0
Emkarate RL10H The trimethylphenyl phosphoric acid ester 40.7
Emkarate RL10H Durad 220 41.3
Emkarate RL10H Durad 220x 41.4
Durad The 220th, the triphenyl of isopropylation and Durad 220x is three (xylyl) phosphoric acid ester, and they are all available from FMC Corp..
Embodiment 2
Following table 3 for example understand to be used the level of the frequency of the compressor that this method records at the noise of 0-20kHz, and wherein compressor lubricant is the polyol ester that comes from Emkarate series, it contain 5wt% according to phosphoric acid ester series of the present invention.
Table 3
Compressor Compressor lubricant The phosphate ester additive of 5wt% Noise level is in dB
MarisDC Emkarate RL10H 70.6
Emkarate RL10H The trimethylphenyl phosphoric acid ester 68.9
Electrolux GQY Emkarate RL15H 63.0
Emkarate RL15H The trimethylphenyl phosphoric acid ester 58.8
Samsung Emkarate RL10H 72.9
Emkarate RL10H The trimethylphenyl phosphoric acid ester 69.6
Atlant75 Emkarate RL15H 71.5
Emkarate RL15H The trimethylphenyl phosphoric acid ester 69.0
Atlant 160 Emkarate RL15H 70.4
Emkarate RL15H The trimethylphenyl phosphoric acid ester 71.1
Tecumseh CAJ Emkarate RL32H 73.4
Emkarate RL32H The trimethylphenyl phosphoric acid ester 70.8
For the major part of dissimilar compressors, cause in the compressor and on every side noise level has reduced 1dB at least according to the existence of phosphate ester additive of the present invention.
Embodiment 3
Test the foam height of measuring in mm according to simple foaming.The device that is used for this foaming test is shown in Fig. 1.Water-bath (7) is set as 25 ℃.The jar (6) of 134a refrigeration agent is placed in the water-bath (7).The needle valve (5) of jar (6) is opened fully, and slowly open with spinner-type flowmeter (4) system's needle valve (5A) in succession up to the flow that reaches 1 liter/minute.This refrigeration agent is by sintered glass rod (3) then, and sintered glass rod (3) is suspended in the compressor lubricant that contains phosphate ester additive (1) of measuring cylinder (2) bottom 5cm.Refrigeration agent passed through sintered glass rod (3) bubbling 10 minutes.Record is in the foam water plane of mm, if frothy words.The results are shown in following table 4.
Table 4
Compressor lubricant Phosphate ester additive (weight %) Foam Foam height (mm)
Emkarate RL10H Trimethylphenyl phosphoric acid ester (0.01%) Not 0
Emkarate RL10H Trimethylphenyl phosphoric acid ester (0.1%) Not 0
Emkarate RL10H Trimethylphenyl phosphoric acid ester (1%) Not 0
Emkarate RL10H Trimethylphenyl phosphoric acid ester (5%) Be 2
Emkarate RL10H Trimethylphenyl phosphoric acid ester (10%) Be 3
Emkarate RL10H SynOAd 8478(0.01％) Not 0
Emkarate RL10H SynOAd 8478(0.1％) Not 0
Emkarate RL10H SynOAd 8478(1％) Not 0
Emkarate RL10H SynOAd 8478(5％) Be 1-2
Emkarate RL10H SynOAd 8478(10％) Be 2
SynOAd 8478 is available from the triphenyl of the tert-butylation of Akzo.
Table 5 has provided comparing result, and wherein lubricant additive is the siliceous foaming additive that is available commercially.
Table 5
Compressor lubricant Lubricant additive (weight) Foam Foam height (mm)
Emkarate RL10H LN(120ppm) Be 20-50
Emkarate RL10H LN(200ppm) Be 20-50
Emkarate RL10H LN(1％) Be At the most 30
Emkarate RL10H DC57(120ppm) Not 0
Emkarate RL10H DC57(200ppm) Not 0
Emkarate RL10H DC57(0.25％) Be 70
Emkarate RL10H DC57(1％) Be 70
LN is the polydimethylsiloxane of 50cSt, available from the Akrochem 50 of Akrochem/silchem.
DC57 is available from the polydimethylsiloxane of Dow and the multipolymer of polyoxyalkylene ether (polyether-modified polysiloxane).
Embodiment 4
Foam height as measurement refrigeration system as described in embodiment 1 and 2.Change the Samsung compressor so that the viewing window towards front bottom to be provided.Then this compressor is linked to each other with refrigeration system.With the refrigeration system emptying and 235g is contained in polyol ester lubricant " suction " compressor of lubricant additive.The HFC134a refrigeration agent that in refrigeration system, adds 60g then.Allow system operation several minutes, generally at the most 30 minutes, so that noise level reaches steady state.Measure foam height then at the viewing window place.The results are shown in table 6.
Table 6
Compressor lubricant Phosphate ester additive (weight %) Foam height (mm)
Emkarate RL10H 0
Emkarate RL10H Trimethylphenyl phosphoric acid ester (0.1%) 0
Emkarate RL10H Trimethylphenyl phosphoric acid ester (1%) 0
Emkarate RL10H Trimethylphenyl phosphoric acid ester (5%) 0
Emkarate RL10H Trimethylphenyl phosphoric acid ester (10%) 0
Emkarate RL10H Durad 220x(55) 0
Table 7 has provided comparing result, and wherein lubricant additive is the siliceous foaming additive that is available commercially.
Table 7
Compressor lubricant Correlated lubricant additive (weight) Foam height (mm)
Emkarate RL10H LN(120ppm) 0
Emkarate RL10H LN(250ppm) 5
Emkarate RL10H LN(1000ppm) 10
Known LN and DC 57 are used for compressor to reduce the compressor noise level as the foaming additive.General its addition is that 100ppm is to maximum 0.5%.
Data among the embodiment 3 and 4 show that clearly use can not cause refrigeration system is had the excessive foaming of harmful effect according to phosphate ester additive of the present invention.This harmful effect be the previous section of this specification sheets described those.

Claims (33)

  1. The purposes of phosphate ester additive in compressor lubricant of molecular formula 1.0.01-10wt% (I), with in the refrigeration system compressor and frequency on every side be that the noise of 0-20kHz reduces 1dB at least:
    O＝P-[O-R] 3 (I)
    Wherein each R is alkyl, aryl or cyclosubstituted aryl independently.
  2. 2. according to the purposes of phosphate ester additive in compressor lubricant of claim 1, wherein said additive is the trialkyl phosphates of molecular formula (II)
    O＝P-[O-R 1] 3 (II)
    Each R wherein 1Can be identical or different and be selected from alkyl, preferred 1-10 carbon atom with 1-20 carbon atom.
  3. 3. according to the purposes of phosphate ester additive in compressor lubricant of claim 2, each R wherein 1Be saturated or unsaturated independently, preferred saturated, and be independently straight chain or branching.
  4. 4. according to the purposes of phosphate ester additive in compressor lubricant of claim 1, wherein said additive is a triaryl phosphate, and wherein one or more aromatic rings randomly are substituted.
  5. 5. according to the purposes of phosphate ester additive in compressor lubricant of claim 4, wherein said additive has molecular formula (III):
    O＝P-[O-Ph(R 2) x] 3 (III)
    Wherein Ph is a phenyl, and x is the integer of 0-5, when x＞0, and each R for each Ph group 2Be alkyl that can be identical or different and can be identical or different for each x.
  6. 6. according to the purposes of phosphate ester additive in compressor lubricant of claim 5, each R wherein 2The alkyl that preferably has 1-20 carbon atom, preferred 1-10 carbon atom, particularly 1-6 carbon atom.
  7. 7. according to the purposes of phosphate ester additive in compressor lubricant of claim 6, each R wherein 2Be saturated or unsaturated independently, preferred saturated, and be independently straight chain or branching.
  8. 8. according to each the purposes of phosphate ester additive in compressor lubricant of claim 5-7, wherein x is the integer of 1-5, preferred 1-3 and, be more preferably 1 or 2.
  9. 9. according to the purposes of phosphate ester additive in compressor lubricant of claim 1, wherein said additive is three aralkyl phosphoric acid ester, and wherein one or more aromatic rings randomly are substituted.
  10. 10. according to the purposes of phosphate ester additive in compressor lubricant of claim 9, wherein said additive has molecular formula (IV)
    0＝P-[O-R 3] 3 (IV)
    Each R wherein 3Be independently selected from as claim 2 or 3 defined R of molecular formula (II) in each 1Group and above as claim 5-8 in each molecular formula (III) defined-Ph (R 2) xGroup, condition are at least one R 3Group is R 1Group and at least one R 3Group is-Ph (R 2) xGroup.
  11. 11. according to each the purposes of phosphate ester additive in compressor lubricant of claim 1 or claim 5-8, wherein said additive is selected from the triphenyl of trimethylphenyl phosphoric acid ester, three (xylyl) phosphoric acid ester, tri-isopropyl benzene base phosphoric acid ester, tert-butylation.
  12. 12. according to the purposes of phosphate ester additive in compressor lubricant of claim 11, wherein said lubricant is the trimethylphenyl phosphoric acid ester.
  13. 13. according to each the purposes of phosphate ester additive in compressor lubricant of aforementioned claim, the amount of wherein said additive in lubricant is 0.1-7wt%, preferred 1-5wt%.
  14. 14. according to each the purposes of phosphate ester additive in compressor lubricant of aforementioned claim, wherein with in the compressor and noise on every side reduce 1.5dB at least, more preferably 2dB at least.
  15. 15. with in the refrigeration system compressor and frequency on every side be that the noise of 0-20kHz reduces the method for 1dB at least, this method comprises the phosphate ester additive that adds 0.01-10wt% in the lubricant in compressor, its molecular formula is
    O＝P-[O-R] 3 (I)
    Wherein each R is alkyl, aryl or cyclosubstituted aryl independently of one another.
  16. 16. according in the reduction refrigeration system compressor of claim 15 and the method for noise on every side, wherein said additive is the trialkyl phosphates of molecular formula (II)
    O＝P-[O-R 1] 3 (II)
    Each R wherein 1Can be identical or different and be selected from alkyl, preferred 1-10 carbon atom with 1-20 carbon atom.
  17. 17. according in the reduction refrigeration system compressor of claim 16 and the method for noise on every side, wherein each R 1Be saturated or unsaturated independently, preferred saturated, and be independently straight chain or branching.
  18. 18. according in the reduction refrigeration system compressor of claim 15 and the method for noise on every side, wherein said additive is a triaryl phosphate, wherein one or more aromatic rings randomly are substituted.
  19. 19. according in the reduction refrigeration system compressor of claim 18 and the method for noise on every side, wherein said additive has molecular formula (III):
    O＝P-[O-Ph(R 2) x] 3 (III)
    Wherein Ph is a phenyl, x be 0-5 integer and, when x＞0, each R for each Ph group 2Be alkyl that can be identical or different and can be identical or different for each x.
  20. 20. according in the reduction refrigeration system compressor of claim 19 and the method for noise on every side, wherein each R 2The alkyl that preferably has 1-20 carbon atom, preferred 1-10 carbon atom, particularly 1-6 carbon atom.
  21. 21. according in the reduction refrigeration system compressor of claim 20 and the method for noise on every side, wherein each R 2Be saturated or unsaturated independently, preferred saturated, and be independently straight chain or branching.
  22. 22. according in each the reduction refrigeration system compressor of claim 19-21 and the method for noise on every side, wherein x is the integer of 1-5, preferred 1-3 and, be more preferably 1-2.
  23. 23. according in the reduction refrigeration system compressor of claim 15 and the method for noise on every side, wherein said additive is three aralkyl phosphoric acid ester, wherein one or more aromatic rings randomly are substituted.
  24. 24. according in the reduction refrigeration system compressor of claim 23 and the method for noise on every side, wherein said additive has molecular formula (IV)
    O＝P-[O-R 3] 3 (IV)
    Each R wherein 3Be independently selected from as claim 16 or 17 defined R of molecular formula (II) in each 1Group and above as claim 19-22 in each molecular formula (III) defined-Ph (R 2) xGroup, condition are at least one R 3Group is R 1Group and at least one R 3Group is-Ph (R 2) xGroup x
  25. 25. according in each the reduction refrigeration system compressor of claim 15 or claim 19-22 and the method for noise on every side, wherein said additive is selected from the triphenyl of trimethylphenyl phosphoric acid ester, three (xylyl) phosphoric acid ester, tri-isopropyl benzene base phosphoric acid ester, tert-butylation.
  26. 26. according in the reduction refrigeration system compressor of claim 25 and the method for noise on every side, wherein said lubricant is the trimethylphenyl phosphoric acid ester.
  27. 27. according in each the reduction refrigeration system compressor of claim 15-26 and the method for noise on every side, the amount of wherein said additive in lubricant is 0.1-7wt%, preferred 1-5wt%.
  28. 28. according in each the reduction refrigeration system compressor of claim 15-27 and the method for noise on every side, wherein with in the compressor and noise on every side reduce 1.5dB at least, more preferably 2dB at least.
  29. 29. comprise the refrigeration system of compressor, condenser, expansion gear and vaporizer, described system contain refrigeration agent, lubricant and 0.01-10wt% as each defined phosphate ester additive of claim 1-12, wherein in the operational process of described system, compare with the operation of the identical system that does not contain described phosphate ester additive, with in the compressor and frequency on every side be that the noise of 0-20kHz reduces 1dB at least.
  30. 30. according to the refrigeration system of claim 29, the amount of described additive in lubricant is 0.1-7wt%, preferred 1-5wt%.
  31. 31. according to the refrigeration system of claim 29 or 30, wherein in the operational process of described system, compare with the operation of the identical system that does not contain described phosphate ester additive, with in the compressor and noise on every side reduce 1.5dB at least, more preferably 2dB at least.
  32. 32. according to each the refrigeration system of claim 29-31, wherein said lubricant is the mixture of hydrogen fluorohydrocarbon or hydrogen fluorohydrocarbon.
  33. 33. according to each the refrigeration system of claim 29-32, wherein said lubricant is a polyol ester.
CN2006800071462A 2005-03-04 2006-02-24 Noise reduction additive Active CN101133142B (en)

Applications Claiming Priority (3)

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GB0504496.1 2005-03-04
GBGB0504496.1A GB0504496D0 (en) 2005-03-04 2005-03-04 Noise reduction additive
PCT/GB2006/000643 WO2006092560A1 (en) 2005-03-04 2006-02-24 Noise reduction additive

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CN105026536A (en) * 2013-03-15 2015-11-04 特灵国际有限公司 Lubricant defoaming additives and compositions

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EP2417196B1 (en) 2009-04-10 2016-06-01 Saint-gobain Performance Plastics Corporation Acoustic damping compositions
EP2417197B1 (en) 2009-04-10 2016-09-21 Saint-gobain Performance Plastics Corporation Acoustic damping composition having elastomeric particulate

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ES2074584T3 (en) * 1989-12-14 1995-09-16 Idemitsu Kosan Co USE OF A COMPOSITION OF REFRIGERATOR OIL FOR HYDROFLUOROCARBON REFRIGERANT.
DK0435253T3 (en) * 1989-12-28 1994-06-20 Nippon Oil Co Ltd Cooling oils for use with hydrogen-containing halogen carbon refrigerants
JP2904322B2 (en) * 1992-06-11 1999-06-14 日石三菱株式会社 Lubricating oil composition for hydraulic cylinder
JPH08157847A (en) * 1994-12-08 1996-06-18 Japan Energy Corp Lubricating oil composition for hfc fluorocarbon compressor, improvement of lubricating property of hfc fluorocarbon compressor and actuation fluid composition containing the same lubricating oil composition
US5711895A (en) * 1994-12-12 1998-01-27 Nippon Oil Co., Ltd. Fluid composition for use in a refrigerating machine in which the refrigerating machine oil is at least one hydrocarbon compound of a formula consisting of two phenyl groups joined through an alkylene or alkenylene group
JP2000297753A (en) * 1999-04-15 2000-10-24 Matsushita Refrig Co Ltd Sealed compressor
JP2002038174A (en) * 2000-07-24 2002-02-06 Nippon Mitsubishi Oil Corp Refrigerating machine oil composition

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Publication number Priority date Publication date Assignee Title
CN105026536A (en) * 2013-03-15 2015-11-04 特灵国际有限公司 Lubricant defoaming additives and compositions

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KR101343177B1 (en) 2013-12-19
EP1856233A1 (en) 2007-11-21
GB0504496D0 (en) 2005-04-13
ES2675733T3 (en) 2018-07-12
WO2006092560A1 (en) 2006-09-08
DK1856233T3 (en) 2018-08-27
CN101133142B (en) 2011-07-06
EP1856233B1 (en) 2018-05-16

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