CN1979061A - Full-liquid type water-icing machine - Google Patents
Full-liquid type water-icing machine Download PDFInfo
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- CN1979061A CN1979061A CN 200510127633 CN200510127633A CN1979061A CN 1979061 A CN1979061 A CN 1979061A CN 200510127633 CN200510127633 CN 200510127633 CN 200510127633 A CN200510127633 A CN 200510127633A CN 1979061 A CN1979061 A CN 1979061A
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Abstract
The invention relates to a full-liquid ice water machine that includes compressor, oil separator, condenser, evaporator and oil level detector. The oil level detector is installed on compressor. When the height is lower than a certain value, assistant oil returns to compressor to assure the normal running of compressor. The machine would use at least one assistant oil returning pipe connecting between oil separator and compressor. An adjusting valve would be used to adjust the assistant oil returning quantity. And an electromagnetic valve is used to control feeding time of assistant oil returning. A flow quantity adjusting valve is installed in the machine to control the assistant oil returning quantity matched with pressure difference of compressor.
Description
Technical field
The invention relates to a kind of full-liquid type water-icing machine, particularly relevant for a kind of full-liquid type water-icing machine with automatic oil return control device.
Background technology
Day by day progressive along with science and technology, people are for the requirement of daily life comfortableness also day by day raising.The basic demand of comfortable living environment promptly is comfortable indoor temperature, so that people's physical efficiency is cosily worked and had a rest under such environment.In addition, also usually need the temperature that provides lower for the preservation of food with making.
Therefore, also day by day progress of the technology of refrigerating and air conditioning.For large-scale central air conditioning equipment, usually use the frozen water machine of forming by motor, compressor, heat exchanger and coolant expansion apparatus etc., with with after the frozen water cooling, send into pressure fan or air-conditioning box with air cooling-down by the ice water circulation system, cold wind is delivered to the place that needs cold air by airduct again.And frozen water machine power consumption generally also be whole central air conditioner system.So the efficient of frozen water machine just is the running efficiency of whole central air-conditioning of concerning.How to improve the operating efficiency of frozen water machine, can save the required energy effectively.
The frozen water machine can be divided into centrifugal, spiral, reciprocating type and scroll-type etc. if distinguish with the pattern of compressor.If then can be divided into water-cooled, ventilation type and transpiration-cooled etc. with the condenser differentiation.If then can be divided into direct-expansion type (direct expansion type) and full-liquid type (flooded type) or the like again as distinguishing with evaporimeter.
Wherein, the efficient of full-liquid type water-icing machine is better than the efficient of direct-expansion type frozen water machine, therefore becomes at present the preferable selection of the employed frozen water machine of central air-conditioning gradually.
Yet, full-liquid type water-icing machine is when running, because entering the refrigeration lubrication oil that mixes with refrigerant in the evaporimeter can't directly return compressor with gaseous coolant, therefore in order suitably to control oil return, the general jet pump (Jet Pump) that adopts carries out oil return, or the oil eliminator of merging is arranged with the control oil return.But adjust when excessive when recirculating oil quantity, will cause the refrigerant hot-gas bypass too much, so that system effectiveness is reduced.Otherwise, not enough if recirculating oil quantity is adjusted, will cause compressor to lose oil and the jumping machine.
Even if the recirculating oil quantity of traditional frozen water machine is suitably adjusted, make it under the situation of normal full load, have normal recirculating oil quantity.But, when load variations, also may cause the situation of oil return deficiency because pressure reduction diminishes.If right cooperation load variations and recirculating oil quantity is set at when big, to such an extent as to its will cause the refrigerant hot-gas bypass too much system effectiveness reduce, therefore energy resource consumption is increased.
This shows that above-mentioned existing full-liquid type water-icing machine obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that full-liquid type water-icing machine exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of full-liquid type water-icing machine of new structure, just become the current industry utmost point to need improved target.
Because the defective that above-mentioned existing full-liquid type water-icing machine exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of full-liquid type water-icing machine of new structure, can improve general existing full-liquid type water-icing machine, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
In above-mentioned background of invention, because the recirculating oil quantity of traditional frozen water machine often causes the situation of oil return deficiency when load variations.In order to cooperate load variations recirculating oil quantity is strengthened, then will cause the reduction of cooling effectiveness.
One of purpose of the present invention provides a kind of full-liquid type water-icing machine, and the oil level of its detecting compressor is normal with the oil level of guaranteeing compressor to provide auxiliary recirculating oil quantity via second oil return pipe, and then increases the cooling effectiveness of full-liquid type water-icing machine.
Another object of the present invention provides a kind of full-liquid type water-icing machine, by the height pressure reduction of detecting compressor, assists recirculating oil quantity so that compressor to be provided, and is normal with the oil level of guaranteeing compressor, and then increases the cooling effectiveness of full-liquid type water-icing machine.
Another purpose of the present invention provides a kind of full-liquid type water-icing machine, by the height pressure reduction and the oil level of detecting compressor, assists recirculating oil quantity so that compressor to be provided, and is normal with the oil level of guaranteeing compressor, and then increases the cooling effectiveness of full-liquid type water-icing machine.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of full-liquid type water-icing machine that the present invention proposes, it comprises at least: a compressor; One oil eliminator is connected in an outlet of this compressor; One condenser connects this oil eliminator; One evaporimeter is connected between this condenser and this compressor; And an oil level detector, be installed on this compressor, detecting an oil level of this compressor,, provide an auxiliary recirculating oil quantity to this compressor by this oil eliminator when this oil level detector detects this compressor when being lower than a predetermined oil level.
The object of the invention to solve the technical problems also adopts following technical measures further to realize.
Aforesaid full-liquid type water-icing machine, it more comprises: at least one first oil return pipe is connected between this oil eliminator and this compressor, to provide a recirculating oil quantity of being scheduled to this compressor; And at least one second oil return pipe, also be connected between this oil eliminator and this compressor, to provide this auxiliary recirculating oil quantity to this compressor.
Aforesaid full-liquid type water-icing machine, the first wherein above-mentioned oil return pipe more comprises: one first petroleum pipeline is connected between this oil eliminator and this compressor;
One first adjusts valve, is installed on this first petroleum pipeline, to adjust this first petroleum pipeline in this predetermined recirculating oil quantity; And one first magnetic valve, be installed on this first petroleum pipeline, controlling the open and close of this first petroleum pipeline, and this first magnetic valve also is in an opening after this full-liquid type water-icing machine is activated, to be provided this predetermined recirculating oil quantity to this compressor by this oil eliminator.
Aforesaid full-liquid type water-icing machine, wherein said second oil return pipe more comprises: one second petroleum pipeline is connected between this oil eliminator and this compressor;
One second adjusts valve, is installed on this second petroleum pipeline, should assist recirculating oil quantity to adjust; And one second magnetic valve, be installed on this second petroleum pipeline, to control the open and close of this second petroleum pipeline, and when this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, open this second magnetic valve, to provide this auxiliary recirculating oil quantity to this compressor via this second petroleum pipeline.
Aforesaid full-liquid type water-icing machine, wherein said second magnetic valve when this oil level that detects this compressor at this oil level detector is lower than this predetermined oil level, is opened a preset time so that this auxiliary recirculating oil quantity to be provided.
Aforesaid full-liquid type water-icing machine, wherein said preset time are about 10 to 30 seconds.
Aforesaid full-liquid type water-icing machine, it more comprises: at least one oil return pipe, be connected between this oil eliminator and this compressor, wherein, this oil return pipe more comprises an adjustable flow control valve, when this oil level that detects this compressor when this oil level detector was lower than this predetermined oil level, this adjustable flow control valve strengthened an aperture, with increase should auxiliary recirculating oil quantity to this compressor.
Aforesaid full-liquid type water-icing machine, wherein said adjustable flow control valve is opened a big preset time.
Aforesaid full-liquid type water-icing machine, wherein said preset time are about 10 to 30 seconds.
Aforesaid full-liquid type water-icing machine, it more comprises a programmable controller, according to a high pressure signal and a low pressure signal of this compressor, determines this aperture of this adjustable flow control valve.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to a kind of full-liquid type water-icing machine that the present invention proposes, it comprises at least: a compressor; One oil eliminator is connected in an outlet of this compressor; One condenser connects this oil eliminator; One evaporimeter is connected between this condenser and this compressor; One oil level detector is installed on this compressor, to detect an oil level of this compressor; At least one first oil return pipe is connected between this oil eliminator and this compressor, to provide a recirculating oil quantity of being scheduled to this compressor; And at least one second oil return pipe, also be connected between this oil eliminator and this compressor, wherein detect this compressor when being lower than a predetermined oil level when this oil level detector, provide an auxiliary recirculating oil quantity to this compressor by this oil eliminator.
The object of the invention to solve the technical problems also adopts following technical measures further to realize.
Aforesaid full-liquid type water-icing machine, wherein said first oil return pipe more comprises: one first petroleum pipeline is connected between this oil eliminator and this compressor; One first adjusts valve, is installed on this first petroleum pipeline, to adjust this first petroleum pipeline in this predetermined recirculating oil quantity; And one first magnetic valve, be installed on this first petroleum pipeline, controlling the open and close of this first petroleum pipeline, and this first magnetic valve also is in an opening after this full-liquid type water-icing machine is activated, to be provided this predetermined recirculating oil quantity to this compressor by this oil eliminator.
Aforesaid full-liquid type water-icing machine, wherein said second oil return pipe more comprises: one second petroleum pipeline is connected between this oil eliminator and this compressor; One second adjusts valve, is installed on this second petroleum pipeline, should assist recirculating oil quantity to adjust; And one second magnetic valve, be installed on this second petroleum pipeline, to control the open and close of this second petroleum pipeline, and when this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, open this second magnetic valve, to provide this auxiliary recirculating oil quantity to this compressor via this second petroleum pipeline.
Aforesaid full-liquid type water-icing machine, wherein said second magnetic valve when this oil level that detects this compressor at this oil level detector is lower than this predetermined oil level, is opened a preset time, so that this auxiliary recirculating oil quantity to be provided.
Aforesaid full-liquid type water-icing machine, wherein said preset time are about 10 to 30 seconds.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to a kind of full-liquid type water-icing machine that the present invention proposes, it comprises at least: a compressor; One high-pressure detector is installed on a high-pressure side of this compressor, to measure a high-voltage value of this compressor; One low pressure detector is installed on a low-pressure end of this compressor, to measure a low voltage value of this compressor; One oil eliminator is connected in this high-pressure side of this compressor; One condenser connects this oil eliminator; One evaporimeter is connected between this low-pressure end of this condenser and this compressor; At least one oil return pipe is connected between this low-pressure end of this oil eliminator and this compressor, to provide a recirculating oil quantity of being scheduled to this compressor; And an adjustable flow control valve, be installed on this oil return pipe, and, adjust an aperture of this adjustable flow control valve according to a difference of this high-voltage value and this low voltage value.
The object of the invention to solve the technical problems also adopts following technical measures further to realize.
Aforesaid full-liquid type water-icing machine, it more comprises an oil level detector, is installed on this compressor, to detect an oil level of this compressor, and when this oil level detector detects this compressor when being lower than a predetermined oil level, this oil return pipe more provides an auxiliary recirculating oil quantity to this compressor by this oil eliminator.
Aforesaid full-liquid type water-icing machine, when wherein this oil level that detects this compressor when this oil level detector was lower than this predetermined oil level, this adjustable flow control valve was opened a big preset time.
Aforesaid full-liquid type water-icing machine, wherein above-mentioned preset time are about 10 to 30 seconds.
Aforesaid full-liquid type water-icing machine, when wherein this oil level that detects this compressor when this oil level detector was higher than this predetermined oil level, this adjustable flow control valve was kept a predetermined aperture.
Aforesaid full-liquid type water-icing machine, it more comprises another oil return pipe, be connected between this oil eliminator and this compressor, when wherein this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, provide another auxiliary recirculating oil quantity to this compressor via this another oil return pipe.
Aforesaid full-liquid type water-icing machine, another wherein above-mentioned oil return pipe more comprises: another petroleum pipeline is connected between this oil eliminator and this compressor; One another adjust valve, be installed on this another petroleum pipeline, to adjust this another auxiliary recirculating oil quantity; And another magnetic valve, be installed on this another petroleum pipeline, to control the open and close of this another petroleum pipeline, and when this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, open this another magnetic valve, to provide this another auxiliary recirculating oil quantity via this another petroleum pipeline to this compressor.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, the present invention is a kind of full-liquid type water-icing machine, includes a compressor, an oil eliminator, a condenser, an evaporimeter and an oil level detector.Oil eliminator is connected in the outlet of compressor, and connects condenser, and evaporimeter is between condenser and compressor, to form this full-liquid type water-icing machine.Wherein, the oil level detector then is installed on the compressor, with the oil level of detecting compressor, when it is lower than a predetermined oil level, provides an auxiliary recirculating oil quantity to compressor via oil eliminator.
Wherein, full-liquid type water-icing machine more includes at least one first oil return pipe, to provide a recirculating oil quantity of being scheduled to compressor, more includes at least one second oil return pipe and also is connected between oil eliminator and the compressor, to provide auxiliary recirculating oil quantity to compressor.
Wherein, first oil return pipe utilizes one first to adjust valve adjusting above-mentioned predetermined recirculating oil quantity, and utilizes one first magnetic valve to control the open and close of first oil return pipe.After full-liquid type water-icing machine was activated, first magnetic valve was preferably and is in an opening, to provide above-mentioned predetermined recirculating oil quantity to compressor.
In addition, second oil return pipe then utilizes one second to adjust valve, adjusting above-mentioned auxiliary recirculating oil quantity, and utilizes one second magnetic valve, to control the open and close of second oil return pipe.When the oil level that detects compressor when the oil level detector was lower than predetermined oil level, second magnetic valve was opened, to provide above-mentioned auxiliary recirculating oil quantity to compressor.Wherein second magnetic valve is preferably and opens a preset time, for example is about 10 to 30 seconds.
Above-mentioned full-liquid type water-icing machine more can utilize an oil return pipe with adjustable flow control valve, is connected between oil eliminator and the compressor.When the oil level that detects compressor when the oil level detector was lower than predetermined oil level, adjustable flow control valve strengthened its aperture, to increase auxiliary recirculating oil quantity to compressor.Above-mentioned adjustable flow control valve is preferably out a big preset time, for example is about 10 to 30 seconds, to provide compressor required refrigeration lubrication oil fast.
Another aspect of full-liquid type water-icing machine of the present invention is to utilize high-pressure detector and the low pressure detector that is installed on compressor, measures the height pressure reduction of compressor, and adjusts an aperture of adjustable flow control valve according to height pressure reduction.And when the oil level of oil level detector detecting compressor is lower than a predetermined oil level, heighten the aperture of adjustable flow control valve, further to provide auxiliary recirculating oil quantity to compressor, be preferably adjustable flow control valve and open a big preset time, for example be about 10 to 30 seconds.Wherein, adjustable flow control valve also can detect at the oil level detector and keep a predetermined aperture when compressor oil level is higher than the above-mentioned oil level of being scheduled to.This full-liquid type water-icing machine more can comprise one second oil return pipe, to provide another auxiliary recirculating oil quantity to compressor.
Therefore, full-liquid type water-icing machine of the present invention can utilize the oil level of detecting compressor, to provide auxiliary recirculating oil quantity to compressor, normal with the oil level of guaranteeing compressor, can also arrange in pairs or groups and measure the height pressure reduction of compressor, to provide compressor required auxiliary recirculating oil quantity, normal with the oil level of guaranteeing compressor.Therefore, full-liquid type water-icing machine of the present invention can increase the cooling effectiveness of full-liquid type water-icing machine, and then improves the efficient of central air conditioner system, and prolongs the service life of full-liquid type water-icing machine simultaneously.
In sum, the full-liquid type water-icing machine of special construction of the present invention, it has above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, and more existing full-liquid type water-icing machine has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the first preferred embodiment schematic diagram for a full-liquid type water-icing machine of the present invention.
Fig. 2 is the second preferred embodiment schematic diagram for a full-liquid type water-icing machine of the present invention.
Fig. 3 is the auxiliary oil return control flow chart for the full-liquid type water-icing machine of first preferred embodiment of the present invention.
Fig. 4 is the oil return control flow chart for the full-liquid type water-icing machine of second preferred embodiment of the present invention.
100: full-liquid type water-icing machine 110: compressor
112: oil level detector 114: the programmable controller
120: oil eliminator 130: condenser
140: 150: the first oil return pipes of evaporimeter
152: magnetic valve 154: adjust valve
156: 160: the second oil return pipes of petroleum pipeline
162: magnetic valve 164: adjust valve
166: petroleum pipeline 170: jet pump
180: expansion valve
200: full-liquid type water-icing machine 210: compressor
212: oil level detector 214: the programmable controller
216: pressure detection device 218: the pressure detection device
220: oil eliminator 230: condenser
240: evaporimeter 250: oil return pipe
252: adjustable flow control valve 254: petroleum pipeline
270: jet pump 280: expansion valve
310～360: step 410～460: step
The specific embodiment
Full-liquid type water-icing machine of the present invention; be to utilize an oil return control device; with the oil level of detecting compressor and/or the height pressure reduction of compressor; so that suitably auxiliary recirculating oil quantity to be provided; and then guarantee the enough refrigeration lubrication oil that compressor operation is required, and effectively protect the stability of compressor operation, more can avoid the undesired jumping machine of compressor; sacrifice under the situation of frozen water machine cooling effectiveness not needing again simultaneously, guarantee recirculating oil quantity.Because the visual compressor load of recirculating oil quantity changes and initiatively adjusts, full-liquid type water-icing machine of the present invention under the situation of general fluctuating load, more can improve the cooling effectiveness of frozen water machine effectively.Below will and describe in detail and clearly demonstrate spirit of the present invention with diagram, as the person skilled in the art after understanding preferred embodiment of the present invention, when can be by the technology of teachings of the present invention, change and modification, it does not break away from spirit of the present invention and scope.
Consulting shown in Figure 1ly, is the first preferred embodiment schematic diagram for a full-liquid type water-icing machine of the present invention.As shown in FIG., full-liquid type water-icing machine 100 includes a compressor 110, an oil eliminator 120, a condenser 130, an evaporimeter 140 and an expansion valve 180.Compressor 110 more comprises the height of an oil level detector 112 with refrigeration lubrication oil in the detecting compressor 110, and this message is sent to a programmable controller (Programmable Logic Controller) 114.Simultaneously, an end of a jet pump 170 is connected in the high-pressure side of compressor 110, and the other end then is connected in the low-pressure end of compressor 110, so that the high liquid refrigerants of oil content in the evaporimeter 140 is drawn back compressor 110.And full-liquid type water-icing machine 100 of the present invention more utilizes first oil return pipe 150, with the compressor and freeze lubricating oil that oil eliminator 120 is separated, delivers to the inlet of compressor 110 via first oil return pipe 150.Wherein, first oil return pipe 150 includes petroleum pipeline 156, a magnetic valve 152 and is installed on it adjusts valve 154.The open and close of magnetic valve 152 controls first oil return pipe 150 are adjusted valve 154 and are then controlled recirculating oil quantity.Generally speaking, when full-liquid type water-icing machine 100 entrys into service, magnetic valve 152 is to be in a state of opening, and makes first oil return pipe 150 that a predetermined recirculating oil quantity is provided.
Full-liquid type water-icing machine 100 of the present invention more includes one second oil return pipe 160.Second oil return pipe 160 is made of a magnetic valve 162, an adjustment valve 164 and petroleum pipeline 166.One end of second oil return pipe 160 is connected in oil eliminator 120, and the other end then is connected in the inlet of compressor 110.Magnetic valve 162 is orders of accepting programmable controller 114, to be used for controlling the open and close of second oil return pipe 160, adjusts the auxiliary recirculating oil quantity size that valve 164 then is used for adjusting second oil return pipe 160.Generally speaking, when full-liquid type water-icing machine 100 entrys into service, magnetic valve 162 is to be in a closing state, adjusts valve 164 and then is set in a predetermined auxiliary oil return flow size, and, provide the number of compressor 110 auxiliary recirculating oil quantities with decision by the open and close of magnetic valve 162.
Consult Fig. 3 simultaneously, it is the auxiliary oil return control flow chart for the full-liquid type water-icing machine of first preferred embodiment.As shown in FIG., step 310 starts full-liquid type water-icing machine 100, and then whether step 320 utilizes the oil level of oil level detector 112 detecting compressors 110 not enough.If the compressor oil level deficiency then enters magnetic valve 162 1 preset times that step 330 is opened second oil return pipe 160, for example is 10 seconds to 30 seconds, with the auxiliary recirculating oil quantity that provides compressor 110 1 to be scheduled to.If compressor oil level is normal, then enter step 340, judge whether second oil return pipe 160 is unlocked.If second oil return pipe 160 is in a state of opening at present, then enter step 350 and judge whether auxiliary oil return program is finished, that is to say to arrive above-mentioned preset time whether, make compressor 110 obtain predetermined auxiliary recirculating oil quantity.If oil return this moment program is finished, then close second oil return pipe 360, shown in step 360.
Yet, if when step 340, judge that second oil return pipe 160 is not unlocked, perhaps judging when step 350 assists the oil return program not finish as yet, and after step 330 and step 360 are finished, next the auxiliary oil return control flow of full-liquid type water-icing machine of the present invention gets back to step 320, continues the detecting compressor oil level.
Therefore, full-liquid type water-icing machine 100 of the present invention can effectively avoid compressor oil level not enough so that make compressor jump the phenomenon of machine, can also effectively improve for fear of compressor oil level not enoughly and recirculating oil quantity is set at bigger, and then make the cooling effectiveness of frozen water machine thereby the problem of reduction.Full-liquid type water-icing machine 100 of the present invention is opened the recirculating oil quantity of first oil return pipe 150 to provide compressor one to be scheduled under general operational circumstances.When load change, then open the auxiliary recirculating oil quantity of second oil return pipe to provide compressor one to be scheduled to.Therefore, full-liquid type water-icing machine 100 of the present invention can effectively improve the cooling effectiveness of frozen water machine, more can prolong the service life of frozen water machine.
Consulting shown in Figure 2ly, is the second preferred embodiment schematic diagram of a full-liquid type water-icing machine of the present invention.As shown in FIG., full-liquid type water-icing machine 200 includes a compressor 210, an oil eliminator 220, a condenser 230, an evaporimeter 240 and an expansion valve 280.Compressor 210 comprises that more an oil level detector 212, a pressure detection device 216 are installed on the low-pressure end of compressor 210 and the high-pressure side that a pressure detection device 218 is installed on compressor 210.The low-pressure end pressure of the height of the refrigeration lubrication oil of oil level detector 212 detecting compressors 210, pressure detection device 216 detecting compressors 210, the high-pressure side pressure of 218 detecting compressors 210 of pressure detection device, it also is sent to a programmable controller 214 with the message of level height and height pressure.
One end of one jet pump 270 is connected in the high-pressure side of compressor 210, and the other end is connected in the low-pressure end of compressor 210, so that the high liquid refrigerants of oil content in the evaporimeter 240 is drawn back compressor 210.
Full-liquid type water-icing machine 200 of the present invention is to utilize an oil return pipe 250, with the compressor and freeze lubricating oil that oil eliminator 220 is separated, sends the inlet of compressor 210 back to.Wherein, oil return pipe 250 includes petroleum pipeline 254, and an adjustable flow control valve 252 is installed on it, with the size of recirculating oil quantity of control oil return pipe 250.The pressure differential at compressor 210 two ends that adjustable flow control valve 252 can be obtained according to programmable controller 214 is calculated and is got required aperture, providing compressor 210 required refrigeration lubrication oil, and then keeps the required refrigeration lubrication oil mass of compressor 210.
This full-liquid type water-icing machine 200 more can utilize the height of the refrigeration lubrication oil of an oil level detector 212 detecting compressors 210, to guarantee that oil level is in a predetermined height, when oil level is lower than this height, transfer the aperture of adjustable flow control valve 252 big, or moment transfer big, or even standard-sized sheet one preset time, so that a predetermined auxiliary recirculating oil quantity additionally to be provided.
Consulting shown in Figure 4ly simultaneously, is the auxiliary oil return control flow chart of the full-liquid type water-icing machine of second preferred embodiment.As shown in FIG., step 410 starts full-liquid type water-icing machine 200, and then step 420 is utilized pressure detection device 216 and the height pressure of pressure detection device 218 with measurement compressor 210, and this height force value is sent to programmable controller 214.Then, step 430 and step 440 are calculated height pressure reduction, and calculate the aperture of required adjustable flow control valve.Simultaneously, whether the full-liquid type water-icing machine 200 also oil level via oil level detector 212 monitoring compressors is not enough, shown in step 450.When oil level is not enough, enter step 460 aperture of adjustable flow control valve 252 is significantly improved, for example be out big 10-30 second, make compressor 210 obtain bigger auxiliary recirculating oil quantity at once.And, enter step 470 if when oil level is not enough, suitably adjust adjustable flow control valve 252 according to the adjustable flow control valve 252 required apertures that step 440 is calculated, so that compressor obtains preferable recirculating oil quantity.
Full-liquid type water-icing machine 200 of the present invention can utilization measured compressed machine high-low pressure, to calculate required recirculating oil quantity, and then control adjustable flow control valve and make recirculating oil quantity satisfy the demand of compressor load appositely, not only can avoid the phenomenon of the not enough jumping machine of compressor oil level, need not simultaneously excessively to heighten oil level, make the cooling effectiveness of full-liquid type water-icing machine of the present invention effectively improve.Cooperate the use of oil level detector, more can avoid because during undesired declines of compressor oil level, the undesired shutdown that is caused effectively promotes the service life of full-liquid type water-icing machine and the system effectiveness of integral body.
Wherein, the programmable controller of full-liquid type water-icing machine of the present invention can also be utilize a microcomputer controller (Micro-Processor Controller) with the control magnetic valve, control adjustable flow control valve and calculate the height pressure reduction etc. of compressor, it does not all break away from spirit of the present invention and scope.
Second embodiment of full-liquid type water-icing machine of the present invention also can utilize second oil return pipe of first embodiment to be mounted thereon, when oil level detector 212 detects the compressor oil level deficiency, start this second oil return pipe,, make the supply of quickening compressor refrigeration lubrication oil so that another auxiliary recirculating oil quantity to be provided.Simultaneously, full-liquid type water-icing machine of the present invention is the height pressure reduction of amount usable measured compressed machine also, adjust the recirculating oil quantity of first oil return pipe, utilize the oil level detector again when detecting the compressor oil level deficiency, start second oil return pipe, so that an auxiliary recirculating oil quantity to be provided, and then reach the required recirculating oil quantity of compressor.And the adjustable flow control valve of second embodiment also can be only when the oil level detector detects the oil level deficiency of compressor, result of calculation according to the programmable controller increases another auxiliary recirculating oil quantity, that is to say the aperture of adjusting adjustable flow control valve, to increase recirculating oil quantity, and when oil level is not enough, then keep adjustable flow control valve in a predetermined aperture, to keep compressor oil level at a suitable height.In addition, the quantity of first oil return pipe of the present invention and second oil return pipe all is not limited to one, and total oil return pipe quantity has more than and is limited to two, and the opening time of every oil return pipe can also be according to actual needs mismatch to some extent.
Full-liquid type water-icing machine of the present invention; utilize the oil level of detecting compressor; optionally to provide an auxiliary oil return to compressor; make the recirculating oil quantity that increases compressor; and then the stability and the security of protection compressor operation; can also arrange in pairs or groups the simultaneously height pressure reduction of utilization measured compressed machine to regulate the required recirculating oil quantity of compressor, makes the oil level of accurately controlling compressor be stable at a suitable height.Therefore, full-liquid type water-icing machine of the present invention can promote the cooling effectiveness of frozen water machine and the system effectiveness of central air-conditioning integral body effectively, reaching the purpose of energy savings, and improves simultaneously the service life of frozen water machine.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the structure that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (22)
1, a kind of full-liquid type water-icing machine is characterized in that it comprises at least:
One compressor;
One oil eliminator is connected in an outlet of this compressor;
One condenser connects this oil eliminator;
One evaporimeter is connected between this condenser and this compressor; And
One oil level detector is installed on this compressor, detecting an oil level of this compressor, when this oil level detector detects this compressor when being lower than a predetermined oil level, provides an auxiliary recirculating oil quantity to this compressor by this oil eliminator.
2, full-liquid type water-icing machine according to claim 1 is characterized in that it more comprises:
At least one first oil return pipe is connected between this oil eliminator and this compressor, to provide a recirculating oil quantity of being scheduled to this compressor; And
At least one second oil return pipe also is connected between this oil eliminator and this compressor, to provide this auxiliary recirculating oil quantity to this compressor.
3, full-liquid type water-icing machine according to claim 2 is characterized in that the first wherein above-mentioned oil return pipe more comprises:
One first petroleum pipeline is connected between this oil eliminator and this compressor;
One first adjusts valve, is installed on this first petroleum pipeline, to adjust this first petroleum pipeline in this predetermined recirculating oil quantity; And
One first magnetic valve, be installed on this first petroleum pipeline, controlling the open and close of this first petroleum pipeline, and this first magnetic valve also is in an opening after this full-liquid type water-icing machine is activated, to be provided this predetermined recirculating oil quantity to this compressor by this oil eliminator.
4, full-liquid type water-icing machine according to claim 2 is characterized in that the second wherein above-mentioned oil return pipe more comprises:
One second petroleum pipeline is connected between this oil eliminator and this compressor;
One second adjusts valve, is installed on this second petroleum pipeline, should assist recirculating oil quantity to adjust; And
One second magnetic valve, be installed on this second petroleum pipeline, to control the open and close of this second petroleum pipeline, and when this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, open this second magnetic valve, to provide this auxiliary recirculating oil quantity to this compressor via this second petroleum pipeline.
5, full-liquid type water-icing machine according to claim 4 is characterized in that the second wherein above-mentioned magnetic valve, when this oil level that detects this compressor at this oil level detector is lower than this predetermined oil level, opens a preset time so that this auxiliary recirculating oil quantity to be provided.
6, full-liquid type water-icing machine according to claim 5 is characterized in that wherein above-mentioned preset time is about 10 to 30 seconds.
7, full-liquid type water-icing machine according to claim 1 is characterized in that more comprising:
At least one oil return pipe, be connected between this oil eliminator and this compressor, wherein, this oil return pipe more comprises an adjustable flow control valve, when this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, this adjustable flow control valve strengthens an aperture, should assist recirculating oil quantity to this compressor to increase.
8, full-liquid type water-icing machine according to claim 7 is characterized in that wherein above-mentioned adjustable flow control valve opens a big preset time.
9, full-liquid type water-icing machine according to claim 8 is characterized in that wherein above-mentioned preset time is about 10 to 30 seconds.
10, full-liquid type water-icing machine according to claim 7 is characterized in that it more comprises a programmable controller, according to a high pressure signal and a low pressure signal of this compressor, determines this aperture of this adjustable flow control valve.
11, a kind of full-liquid type water-icing machine is characterized in that it comprises at least:
One compressor;
One oil eliminator is connected in an outlet of this compressor;
One condenser connects this oil eliminator;
One evaporimeter is connected between this condenser and this compressor;
One oil level detector is installed on this compressor, to detect an oil level of this compressor;
At least one first oil return pipe is connected between this oil eliminator and this compressor, to provide a recirculating oil quantity of being scheduled to this compressor; And
At least one second oil return pipe also is connected between this oil eliminator and this compressor, wherein detects this compressor when being lower than a predetermined oil level when this oil level detector, provides an auxiliary recirculating oil quantity to this compressor by this oil eliminator.
12, full-liquid type water-icing machine according to claim 11 is characterized in that the first wherein above-mentioned oil return pipe more comprises:
One first petroleum pipeline is connected between this oil eliminator and this compressor;
One first adjusts valve, is installed on this first petroleum pipeline, to adjust this first petroleum pipeline in this predetermined recirculating oil quantity; And
One first magnetic valve, be installed on this first petroleum pipeline, controlling the open and close of this first petroleum pipeline, and this first magnetic valve also is in an opening after this full-liquid type water-icing machine is activated, to be provided this predetermined recirculating oil quantity to this compressor by this oil eliminator.
13, full-liquid type water-icing machine according to claim 11 is characterized in that the second wherein above-mentioned oil return pipe more comprises:
One second petroleum pipeline is connected between this oil eliminator and this compressor;
One second adjusts valve, is installed on this second petroleum pipeline, should assist recirculating oil quantity to adjust; And
One second magnetic valve, be installed on this second petroleum pipeline, to control the open and close of this second petroleum pipeline, and when this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, open this second magnetic valve, to provide this auxiliary recirculating oil quantity to this compressor via this second petroleum pipeline.
14, full-liquid type water-icing machine according to claim 13, it is characterized in that the second wherein above-mentioned magnetic valve, when this oil level that detects this compressor at this oil level detector is lower than this predetermined oil level, open a preset time, so that this auxiliary recirculating oil quantity to be provided.
15, full-liquid type water-icing machine according to claim 14 is characterized in that wherein above-mentioned preset time is about 10 to 30 seconds.
16, a kind of full-liquid type water-icing machine is characterized in that it comprises at least:
One compressor;
One high-pressure detector is installed on a high-pressure side of this compressor, to measure a high-voltage value of this compressor;
One low pressure detector is installed on a low-pressure end of this compressor, to measure a low voltage value of this compressor;
One oil eliminator is connected in this high-pressure side of this compressor;
One condenser connects this oil eliminator;
One evaporimeter is connected between this low-pressure end of this condenser and this compressor;
At least one oil return pipe is connected between this low-pressure end of this oil eliminator and this compressor, to provide a recirculating oil quantity of being scheduled to this compressor; And
One adjustable flow control valve is installed on this oil return pipe, and according to a difference of this high-voltage value and this low voltage value, adjusts an aperture of this adjustable flow control valve.
17, full-liquid type water-icing machine according to claim 16, it is characterized in that more comprising an oil level detector, be installed on this compressor, to detect an oil level of this compressor, and when this oil level detector detects this compressor when being lower than a predetermined oil level, this oil return pipe more provides an auxiliary recirculating oil quantity to this compressor by this oil eliminator.
18, full-liquid type water-icing machine according to claim 17 is characterized in that wherein this adjustable flow control valve is opened a big preset time when this oil level that this oil level detector detects this compressor is lower than this predetermined oil level.
19, full-liquid type water-icing machine according to claim 18 is characterized in that wherein above-mentioned preset time is about 10 to 30 seconds.
20, full-liquid type water-icing machine according to claim 17 is characterized in that wherein this adjustable flow control valve is kept a predetermined aperture when this oil level that this oil level detector detects this compressor is higher than this predetermined oil level.
21, full-liquid type water-icing machine according to claim 17, it is characterized in that it more comprises another oil return pipe, be connected between this oil eliminator and this compressor, when wherein this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, provide another auxiliary recirculating oil quantity to this compressor via this another oil return pipe.
22, full-liquid type water-icing machine according to claim 21 is characterized in that another wherein above-mentioned oil return pipe more comprises:
One another petroleum pipeline is connected between this oil eliminator and this compressor;
One another adjust valve, be installed on this another petroleum pipeline, to adjust this another auxiliary recirculating oil quantity; And
One another magnetic valve, be installed on this another petroleum pipeline, to control the open and close of this another petroleum pipeline, and when this oil level that detects this compressor when this oil level detector is lower than this predetermined oil level, open this another magnetic valve, to provide this another auxiliary recirculating oil quantity via this another petroleum pipeline to this compressor.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB200510127633XA CN100476324C (en) | 2005-12-06 | 2005-12-06 | Full-liquid type water-icing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510127633XA CN100476324C (en) | 2005-12-06 | 2005-12-06 | Full-liquid type water-icing machine |
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| CN1979061A true CN1979061A (en) | 2007-06-13 |
| CN100476324C CN100476324C (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200510127633XA Active CN100476324C (en) | 2005-12-06 | 2005-12-06 | Full-liquid type water-icing machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865553A (en) * | 2010-05-21 | 2010-10-20 | 北京中科华誉能源技术发展有限责任公司 | Flooded water source heat pump system with parallel scroll compressor |
| CN103994604A (en) * | 2014-06-04 | 2014-08-20 | 唐玉敏 | Heat utilization system with oil-gas separation device |
| CN104236168A (en) * | 2014-07-10 | 2014-12-24 | 广东美的集团芜湖制冷设备有限公司 | Oil return control method and oil return control system for compressor system |
| CN109312969A (en) * | 2016-06-24 | 2019-02-05 | 丹佛斯有限公司 | A method of the pressure and oil level in oily receiver for controlling vapor compression system |
| CN109489293A (en) * | 2018-10-11 | 2019-03-19 | 珠海格力电器股份有限公司 | Air-conditioning system |
| CN112629076A (en) * | 2020-12-24 | 2021-04-09 | 格力电器（武汉）有限公司 | Oil return system, air conditioner and control method of oil return system |
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| CN113465230A (en) * | 2021-06-28 | 2021-10-01 | 青岛海尔空调电子有限公司 | Oil return control method for refrigeration system and refrigeration system |
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| CN101865553A (en) * | 2010-05-21 | 2010-10-20 | 北京中科华誉能源技术发展有限责任公司 | Flooded water source heat pump system with parallel scroll compressor |
| CN103994604A (en) * | 2014-06-04 | 2014-08-20 | 唐玉敏 | Heat utilization system with oil-gas separation device |
| CN103994604B (en) * | 2014-06-04 | 2016-03-16 | 唐玉敏 | A kind of heat utilization system with gas and oil separating plant |
| CN104236168A (en) * | 2014-07-10 | 2014-12-24 | 广东美的集团芜湖制冷设备有限公司 | Oil return control method and oil return control system for compressor system |
| CN109312969A (en) * | 2016-06-24 | 2019-02-05 | 丹佛斯有限公司 | A method of the pressure and oil level in oily receiver for controlling vapor compression system |
| CN109489293A (en) * | 2018-10-11 | 2019-03-19 | 珠海格力电器股份有限公司 | Air-conditioning system |
| CN112629076A (en) * | 2020-12-24 | 2021-04-09 | 格力电器（武汉）有限公司 | Oil return system, air conditioner and control method of oil return system |
| CN112629076B (en) * | 2020-12-24 | 2022-03-04 | 格力电器（武汉）有限公司 | Oil return system, air conditioner and control method of oil return system |
| CN113465231A (en) * | 2021-06-28 | 2021-10-01 | 青岛海尔空调电子有限公司 | Oil separator, oil return system and refrigerating system |
| CN113465230A (en) * | 2021-06-28 | 2021-10-01 | 青岛海尔空调电子有限公司 | Oil return control method for refrigeration system and refrigeration system |
| CN113465231B (en) * | 2021-06-28 | 2023-07-18 | 青岛海尔空调电子有限公司 | Oil separator, oil return system and refrigerating system |
| CN114353359A (en) * | 2021-12-20 | 2022-04-15 | 青岛海尔空调电子有限公司 | Air conditioner oil return control method |
| CN114353359B (en) * | 2021-12-20 | 2023-11-24 | 青岛海尔空调电子有限公司 | Air conditioner oil return control method |
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| CN100476324C (en) | 2009-04-08 |
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