CN103673437A - Oil recovery device with cooling function and refrigerating system adopting oil recovery device - Google Patents
Oil recovery device with cooling function and refrigerating system adopting oil recovery device Download PDFInfo
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- CN103673437A CN103673437A CN201310751228.XA CN201310751228A CN103673437A CN 103673437 A CN103673437 A CN 103673437A CN 201310751228 A CN201310751228 A CN 201310751228A CN 103673437 A CN103673437 A CN 103673437A
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- oil
- refrigerant
- fuel tank
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- lubricating oil
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- 238000011084 recovery Methods 0.000 title claims abstract description 46
- 238000001816 cooling Methods 0.000 title abstract description 24
- 239000003507 refrigerant Substances 0.000 claims abstract description 129
- 239000003921 oil Substances 0.000 claims abstract description 124
- 239000010687 lubricating oil Substances 0.000 claims abstract description 68
- 230000001050 lubricating effect Effects 0.000 claims abstract description 10
- 239000002828 fuel tank Substances 0.000 claims description 54
- 230000006698 induction Effects 0.000 claims description 44
- 239000002826 coolant Substances 0.000 claims description 24
- 238000005057 refrigeration Methods 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 12
- 239000003208 petroleum Substances 0.000 claims description 12
- 238000010992 reflux Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 230000003434 inspiratory effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 239000012530 fluid Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 9
- 239000000306 component Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 239000004519 grease Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000010730 cutting oil Substances 0.000 description 3
- 239000010726 refrigerant oil Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention discloses an oil recovery device with a cooling function and a refrigerating system adopting the oil recovery device. Through a vertical heat exchange device, oil-rich refrigerants exchange heat with high-temperature lubricating oil in an oil tank, refrigerants in the oil-rich refrigerants absorb heat to become a gaseous state, the goal of separating the refrigerants from the lubricating oil is reached, further, the separated refrigerants and lubricating oil are respectively sent back to corresponding circulation loops, the recovery of the lubricating oil is realized, and the introduction of external heat sources and cooling media is not needed in the heat exchange process. Compared with the prior art, the oil recovery device and the refrigerating system have the advantages that the purity of the recovered lubricating oil is greatly improved, the recovery rate is improved, meanwhile, the goal of cooling the lubricating oil in the heat exchange process is also reached, the cooled lubricating oil can be reused for lubricating and cooling components to be lubricated, and the oil recovery and cooling cost is reduced.
Description
Technical field
The application relates to refrigeration technology field, relates in particular to a kind of refrigeration system that has the oil recovery apparatus of refrigerating function concurrently and apply it.
Background technology
In large-scale steam compressed handpiece Water Chilling Units, compressor is the core component of whole cooling cycle system, and it compresses gaseous coolant by rotary part; In compressor operation process, for the lubricating oil of the rotary part of lubricated, cooling compressor, usually can sneak into refrigerant, and for example, along with flowing of refrigerant finally accumulates in pressure lowest part in whole cooling cycle system, the evaporimeter in kind of refrigeration cycle.These sneak into the surface that lubricating oil in refrigerant is attached to heat-transfer pipe, have increased heat exchange thermal resistance, have weakened heat transfer effect; Make to be back to fuel tank simultaneously and reduce gradually for lubricated, cooling oil, finally cause whole system normally to work.
Prior art is directly recycled to fuel tank by induction apparatus by above-mentioned lubricating oil of sneaking in refrigerant conventionally.This induction apparatus comprises drive end, injection end and mixes end; When the drive source flowing at a high speed from drive end is flowed through induction apparatus, can cause local low pressure, oil is inhaled into from injection end with the fluid-mixing of refrigerant, and drive source fluid converges by mixing end and is back to fuel tank with the fluid-mixing of oil and refrigerant, completes oily recovery.Wherein, drive source adopts the high pressure refrigerant of exhaust outlet of compressor and the blending agent of mist of oil conventionally, and making to be recycled to refrigerant content in the lubricating oil in fuel tank further increases.
Above-mentioned oil recovery method causes a large amount of refrigerants to sneak into fuel tank, because oily the temperature inside the box is high, the refrigerant of sneaking into is constantly evaporated, the process of evaporation is brought a large amount of oil into refrigerant circulation circuit again, is even greater than the oil mass that is recycled to fuel tank by induction apparatus, still cannot avoid the minimizing of fuel tank fuel quantity.
Summary of the invention
In view of this, the application's object is to provide a kind of refrigeration system that has the oil recovery apparatus of refrigerating function concurrently and apply it, to solve existing oily way of recycling, easily make a large amount of refrigerants sneak into fuel tank and then lubricating oil is more easily brought into refrigerant circulation circuit, cannot really reach the problem that oil reclaims object.
For achieving the above object, the application provides following technical scheme:
Have an oil recovery apparatus for refrigerating function concurrently, be applied to a refrigeration system, described refrigeration system comprises compressor, condenser, expansion gear and evaporimeter; Described compressor, condenser, expansion gear and evaporimeter are connected to form refrigerant circulation circuit in turn by refrigerant pipeline; Described compressor is provided with a fuel tank that stores lubricating oil, and described fuel tank bottom arranges an oil-out, is provided with an oil pump in described fuel tank; Described oil pump is for pumping the lubricating oil of described fuel tank from the oil-out of described fuel tank; The described oil recovery apparatus that has refrigerating function concurrently comprises: separative element;
Described separative element comprises: Vertical Heat switch, flow line, petroleum pipeline, first drive pipeline and the first induction apparatus;
Described flow line runs through described Vertical Heat switch from top to bottom; The upper port of described flow line is connected to the oil-out of described fuel tank, and the lower port of described flow line is connected to respectively described first and drives one end of pipeline and one end of described petroleum pipeline;
The other end of described petroleum pipeline is connected to treats lubricating component;
The drive end of described the first induction apparatus is connected to the other end of described the first driving pipeline; The injection end of described the first induction apparatus is communicated with described refrigerant circulation circuit, to flow into low-temp low-pressure rich oil refrigerant; The mixing end of described the first induction apparatus is communicated with the inner chamber of described Vertical Heat switch;
Described Vertical Heat switch is for carrying out heat exchange by the HTHP lubricating oil in the low-temp low-pressure rich oil refrigerant of inflow and described flow line;
The bottom of described Vertical Heat switch is provided with an oil return opening; Described oil return opening is communicated with described fuel tank;
The top of described Vertical Heat switch is provided with refrigerant exit; Described refrigerant exit is communicated with described refrigerant circulation circuit.
Preferably, described in have the oil recovery apparatus of refrigerating function concurrently, also comprise oil return unit;
Described oil return unit comprises: the second induction apparatus, second drives pipeline and oil return pipeline;
One end of described the second driving pipeline is connected to the lower port of described flow line; The other end of described the second driving pipeline is connected to the drive end of described the second induction apparatus;
The injection of described the second induction apparatus is terminated at described oil return opening; The mixing end of described the second induction apparatus is communicated with described fuel tank by described oil return pipeline.
Preferably, described oil return unit also comprises float-controlled valve;
Described float-controlled valve is arranged at described Vertical Heat switch inside, described oil return opening place.
Preferably, described compressor is provided with the inlet guide vane that regulates inspiratory capacity size; The described oil recovery apparatus that has refrigerating function concurrently also comprises refrigerant reflux unit;
Described refrigerant reflux unit comprises refrigerant return pipe line;
One end of described refrigerant return pipe line is connected to described refrigerant exit, and the other end is connected to described inlet guide vane front end.
Preferably, described refrigerant reflux unit also comprises the first pressure sensor, the second pressure sensor, the first magnetic valve, the second magnetic valve and solenoid valve controller;
Described the first pressure sensor is arranged at the exit of described evaporimeter, for detection of the first pressure of the exit gaseous coolant of described evaporimeter;
Described the second pressure sensor is arranged at described Vertical Heat switch top, for detection of the second pressure of described Vertical Heat switch top gaseous coolant;
Described the first magnetic valve is arranged on the injection end and the pipeline between described refrigerant circulation circuit that is communicated with described the first induction apparatus;
Described the second magnetic valve is arranged on described refrigerant return pipe line;
Described solenoid valve controller is for when the difference of described the second pressure and described the first pressure is greater than the first setting value, control described the first closed electromagnetic valve, described the second magnetic valve unlatching, when the difference of described the second pressure and described the first pressure is less than the second setting value, control described the first magnetic valve unlatching, described the second closed electromagnetic valve; Wherein, described the first setting value is greater than described the second setting value.
Preferably, the injection end of described the first induction apparatus is communicated with by rich oil refrigerant export pipeline with described evaporimeter.
A refrigeration system, comprises compressor, condenser, expansion gear and evaporimeter; Described compressor, condenser, expansion gear and evaporimeter are connected to form refrigerant circulation circuit in turn by refrigerant pipeline; Described compressor is provided with a fuel tank that stores lubricating oil, and described fuel tank bottom arranges an oil-out, is provided with an oil pump in described fuel tank; Described oil pump is for pumping the lubricating oil of described fuel tank from the oil-out of described fuel tank; Also comprise the oil recovery apparatus that has refrigerating function concurrently described in above any one.
Preferably, described compressor comprises centrifugal compressor.
Preferably, described evaporimeter comprise following any: flooded evaporator and downward film evaporator.
From above-mentioned technical scheme, can find out, the application is by Vertical Heat switch, high temperature grease in rich oil refrigerant and fuel tank is carried out to heat exchange, after making the refrigerant heat absorption in rich oil refrigerant, evaporation becomes gaseous state, reached the object of separated refrigerant and lubricating oil, and then the refrigerant after separation and lubricating oil are returned to respectively to corresponding closed circuit, realized sneaking into the recovery of the lubricating oil in refrigerant; Above-mentioned heat exchanging process does not need to introduce outside thermal source and cooling medium, and with respect to prior art, the application has greatly reduced the cost that lubricating oil reclaims, and has improved the purity of the lubricating oil reclaiming, and has improved organic efficiency, has solved the problem of prior art.Simultaneously, the application is when realizing lubricating oil recovery by above-mentioned heat exchanging process, also reached the object of cutting oil, cooled lubricating oil can be reused for treats the lubricated, cooling of lubricating component, thereby be no longer necessary for and realize recycling of lubricating oil and lubricant oil cooling apparatus is set separately, greatly reduced lubricated oil cooled cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiment of the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The oil recovery apparatus that has refrigerating function concurrently that Fig. 1 provides for the embodiment of the present application one and the structural representation of applying its refrigeration system;
The oil recovery apparatus that has refrigerating function concurrently that Fig. 2 provides for the embodiment of the present application two and the structural representation of applying its refrigeration system.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Embodiment based in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the application's protection.
The embodiment of the present application discloses a kind of refrigeration system that has the oil recovery apparatus of refrigerating function concurrently and apply it, to solve existing oily way of recycling, easily make a large amount of refrigerants sneak into fuel tank and then lubricating oil is more easily brought into refrigerant circulation circuit, cannot really reach the problem that oil reclaims object.
With reference to Fig. 1, the oil recovery apparatus that has refrigerating function concurrently that the embodiment of the present application one provides, is applied to a refrigeration system.
Described refrigeration system comprises compressor 1, condenser 3, expansion gear 4 and evaporimeter 2; Compressor 1, condenser 3, expansion gear 4 and evaporimeter 2 are connected to form refrigerant circulation circuit in turn by refrigerant pipeline.The cyclic process of refrigerant in described refrigerant circulation circuit is as follows:
Gaseous coolant enters compressor 1 by evaporimeter 2, by compressor, is compressed, and temperature, pressure raise, and through pipeline 10, are expelled to condenser 3; The gaseous coolant of HTHP is cooled in condenser 3, is condensed into liquid state, through pipeline 30; When the liquid refrigerant of HTHP is flowed through expansion gear 4, pressure drop, part gasification heat absorption, is further cooled another part; Low temperature liquid refrigerant after being cooled enters evaporimeter 2 through pipeline 40; Low temperature liquid refrigerant in evaporimeter 2 with high temperature medium generation to be cooled heat exchange, make high temperature medium to be cooled be cooled, reach refrigeration object, simultaneously refrigerant is evaporated to gaseous state, through pipeline 20, is back to compressor 1.
Compressor 1 uses rotary part to compress gaseous coolant, and in High Rotation Speed, these rotary parts all need to be lubricated by lubricating oil cooling.Compressor 1 is provided with a fuel tank 19, to store the lubricating oil for the above-mentioned rotary part of lubrication; Fuel tank 19 bottoms arrange an oil-out 19a, are provided with an oil pump 18 in fuel tank 19; Under the effect of oil pump 18, the lubricating oil in fuel tank 19 pumps from the oil-out 19a of fuel tank 19, through pipeline, is delivered to above-mentioned rotary part.Gaseous coolant, when flowing through compressor 1, can be taken away parts of lubricating oil conventionally, forms rich oil refrigerant, in refrigerant circulation circuit, circulates.
The oil recovery apparatus that has refrigerating function concurrently that the embodiment of the present application one provides comprises separative element, for carrying out separated to the refrigerant of above-mentioned rich oil refrigerant with lubricating oil; Separative element comprises: Vertical Heat switch 5, flow line 12, petroleum pipeline 17, first drive pipeline 13a and the first induction apparatus 8a.
The drive end of the first induction apparatus 8a is connected to the other end of the first driving pipeline 13a; The injection end of the first induction apparatus 8a is communicated with described refrigerant circulation circuit, to flow into low-temp low-pressure rich oil refrigerant; The mixing end of the first induction apparatus 8a is communicated with the inner chamber of Vertical Heat switch 5.
The bottom of Vertical Heat switch 5 is provided with an oil return opening 5a; Oil return opening 5a is communicated with fuel tank 19, with the pure lubricating oil that separation is obtained, returns to fuel tank 19.
The top of Vertical Heat switch 5 is provided with refrigerant exit 5b; Refrigerant exit 5b is communicated with described refrigerant circulation circuit, with the pure gaseous coolant that separation is obtained, returns to described refrigerant circulation circuit.
The course of work and the principle of the above-mentioned oil recovery apparatus that has refrigerating function concurrently are as follows:
Lubricating oil temperature after lubricated, cooling rotary part raises, under the effect of oil pump 18, by the oil-out 19a of fuel tank 19, pumped, enter flow line 12, now the temperature of lubricating oil, pressure are all higher.
The high-tension lubrication flow of oil that the first induction apparatus 8a be take from flow line 12 is drive source, and the low-temp low-pressure rich oil refrigerant in refrigerant circulation circuit is sucked from the injection end of the first induction apparatus 8a; After extreme pressure lubricant mixes with rich oil refrigerant, through the mixing end of the first induction apparatus 8a, export the inner chamber of Vertical Heat switch 5 to.
Because flow line 12 runs through the inner chamber of Vertical Heat switch 5, therefore when the high temperature grease pumping in fuel tank 19 is flowed through Vertical Heat switch 5 along flow line 12, with the low temperature rich oil refrigerant generation heat exchange in Vertical Heat switch 5 inner chambers; Due to the boiling point of the refrigerant boiling point far below lubricating oil, therefore after the heat absorption of low temperature rich oil refrigerant, first refrigerant wherein evaporates, and becomes gaseous state, thereby and lubricating oil separation; The pure gaseous coolant that separation obtains accumulates on the top of Vertical Heat switch 5, through refrigerant exit 5b, returns to refrigerant circulation circuit, and the pure lubricating oil that separation obtains accumulates on the bottom of Vertical Heat switch 5, through oil return opening 5a, returns to fuel tank 19.Meanwhile, by above-mentioned heat exchanging process, the high temperature grease in flow line 12 is cooled, and through petroleum pipeline 17, is delivered to and treats lubricating component, is lubricated, cooling to treat lubricating component.
From said structure and the course of work, the embodiment of the present application is by Vertical Heat switch, high temperature grease in rich oil refrigerant and fuel tank is carried out to heat exchange, after making the refrigerant heat absorption in rich oil refrigerant, evaporation becomes gaseous state, reached the object of separated refrigerant and lubricating oil, and then the refrigerant after separation and lubricating oil are returned to respectively to corresponding closed circuit, realized sneaking into the recovery of the lubricating oil in refrigerant; With respect to prior art, the embodiment of the present application has improved the purity of the lubricating oil reclaiming greatly, has improved organic efficiency, has solved the problem of prior art.
In addition, heat exchanging process in the embodiment of the present application is when realizing lubricating oil recovery, also reached the object of cutting oil, cooled lubricating oil can be reused for treats the lubricated, cooling of lubricating component, thereby be no longer necessary for, realize recycling of lubricating oil and lubricant oil cooling apparatus is set separately; The embodiment of the present application does not need to introduce outside thermal source and cooling medium, take rich oil refrigerant as cold fluid, carry out heat exchange from the lubricating oil of fuel tank as hot fluid, the byproduct of cold fluid and hot fluid the other side's heat exchange each other, realized energy rationally, effectively conversion, greatly reduced lubricating oil recovery, lubricated oil cooled cost.
Due to after lubricating oil sneaks in refrigerant, mostly accumulate in evaporimeter, therefore in the embodiment of the present application, preferably evaporimeter is the output point of rich oil refrigerant, the injection end of the first induction apparatus is communicated with by rich oil refrigerant export pipeline with evaporimeter, rich oil refrigerant flows out from evaporimeter, through rich oil refrigerant export pipeline, enters the first induction apparatus.
As shown in Figure 2, the embodiment of the present application two provides the another kind of oil recovery apparatus that has refrigerating function concurrently, and it at least comprises separative element and oil return unit.
Wherein, separative element comprises Vertical Heat switch 5, flow line 12, petroleum pipeline 17 and the first induction apparatus 8a; Concrete structure can be with reference to described in embodiment above, and special, the injection end of the first induction apparatus 8a is communicated with by rich oil refrigerant export pipeline 9 with evaporimeter 2.
Oil return unit comprises: the second induction apparatus 8b, second drives pipeline 13b and oil return pipeline 14.
Concrete, an end of the second driving pipeline 13b is connected to the lower port of flow line 12; The other end of the second driving pipeline 13b is connected to the drive end of the second induction apparatus 8b; The injection of the second induction apparatus 8b is terminated at the oil return opening 5a of Vertical Heat switch 5; The mixing end of the second induction apparatus 8b is communicated with fuel tank 19 by oil return pipeline 14.
Above-mentioned oil return unit is for being transmitted back to the separated pure lubricating oil obtaining of Vertical Heat switch 5 to fuel tank 19, and its principle is:
The high-tension lubrication flow of oil that the second induction apparatus 8b be take from flow line 12 is drive source, and the separated lubricating oil obtaining in Vertical Heat switch 5 is sucked from the injection end of the second induction apparatus 8b; After high-tension lubrication flow of oil mixes with the separated lubricating oil that obtains, through the mixing end of the second induction apparatus 8b, export fuel tank 19 to.
Further, as shown in Figure 2, above-mentioned oil return unit also comprises float-controlled valve 43; Float-controlled valve 43 is arranged at Vertical Heat switch 5 inside, oil return opening 5a place.The lubricants capacity accumulating in Vertical Heat switch 5 reach a certain amount of after, under buoyancy, float-controlled valve 43 is opened, lubricating oil is sucked by induction apparatus 8b; Along with accumulating lubricating oil, reduce, buoyancy reduces, and after being decreased to certain value, float-controlled valve 43 cuts out.
In addition, as shown in Figure 2, the porch of compressor 1 is provided with inlet guide vane 7, by regulating the aperture of inlet guide vane 7 can control the size of compressor air suction amount, thereby reaches the effect that regulates load.
The oil recovery apparatus that has refrigerating function concurrently that the embodiment of the present application provides also comprises refrigerant reflux unit, for the gaseous coolant that 5 separation of Vertical Heat switch are obtained, returns to refrigerant circulation circuit.Described refrigerant reflux unit at least comprises refrigerant return pipe line 11; One end of refrigerant return pipe line 11 is connected to the refrigerant exit 5b of Vertical Heat switch 5, and the other end is connected to the front end of inlet guide vane 7.
Gaseous coolant is inhaled into compressor 1 from evaporimeter 2 tops through pipeline 20, therefore the porch of compressor 1, the pressure of the front end of inlet guide vane 7 is lower than the pressure on evaporimeter 2 tops; And pressure in vertical heat-exchange device 5 depends on the refrigerant saturation pressure that rich oil refrigerant is corresponding with the heat exchange equilibrium temperature of high temperature grease, this refrigerant saturation pressure is much larger than the pressure of the front end of inlet guide vane 7, the pressure differential of the two impels the gaseous coolant in Vertical Heat switch 5 to be back to inlet guide vane 7 front ends along refrigerant return pipe line 11, with the gaseous coolant interflow sucking from evaporimeter 2 tops, continue to participate in cool cycles.
Further, for improving the heat exchanger effectiveness of Vertical Heat switch, refrigerant backflow is controlled more accurate, described refrigerant reflux unit also comprises the first pressure sensor 40a, the second pressure sensor 40b, the first magnetic valve 41, the second magnetic valve 42 and solenoid valve controller.
The first pressure sensor 40a is arranged at the top of evaporimeter 2, i.e. the exit of gaseous coolant, for detection of the first pressure P 1 of the exit gaseous coolant of described evaporimeter; The second pressure sensor 40b is arranged at Vertical Heat switch 5 tops, for detection of the second pressure P 2 of Vertical Heat switch 5 top gaseous coolants.
The first magnetic valve 41 is arranged on the injection end and the pipeline between described refrigerant circulation circuit that is communicated with the first induction apparatus 8a, on rich oil refrigerant export pipeline 9; The second magnetic valve 42 is arranged on refrigerant return pipe line 11.
The first pressure P 1 and the second pressure P 2 that described solenoid valve controller detects for receiving the first pressure sensor 40a and the second pressure sensor 40b, and according to P1 and P2 control the first magnetic valve 41 and the second magnetic valve 42 unlatching, close.
Concrete, when the difference of P1 and P2 is greater than the first setting value, described solenoid valve controller controls that the first magnetic valve 41 cuts out, the second magnetic valve 42 is opened, to reduce the pressure in Vertical Heat switch 5; When the difference of P1 and P2 is less than the second setting value, described solenoid valve controller is controlled the first magnetic valve 41 unlatchings, the second magnetic valve 42 cuts out, to increase the pressure in Vertical Heat switch 5, avoid because Vertical Heat switch 5 internal pressures are too low, cause gaseous coolant to reflux.Wherein, described the first setting value is greater than described the second setting value.
In practical application, the lubricating oil temperature obtaining through the heat exchange of Vertical Heat switch is enough to reach the cooling requirement for the treatment of lubricating component, can be directly used in and treat that profit changes the lubricated, cooling of parts.In particular cases, if the lubricating oil temperature obtaining through the heat exchange of Vertical Heat switch is still higher, cannot be directly used in and treats that profit changes the lubricated, cooling of parts, can on petroleum pipeline 17, arrange radiator cooler 16 carry out further cooling, as shown in Figure 2.Cooling medium, by flowing into from 6a, flows out from 6b after heat exchange, in typical case's application, adopts liquid refrigerants as the cooling medium in radiator cooler 16.In fact, the heat exchange amount of radiator cooler 16 is much smaller than Vertical Heat switch.
The oil recovery apparatus that has refrigerating function concurrently that the embodiment of the present application provides, application specifically can be: the cooling system being driven by vapor refrigeration compressor, or Motor Drive, employing Vapor Compression Refrigeration Cycle are applied to cold water (heat pump) unit of industry or business and similar applications, or the unit driving with engine (diesel engine or gas engine) or turbine engine (steam turbine or gas turbine).
Accordingly, the embodiment of the present application also provides a kind of refrigeration system, comprises compressor, condenser, expansion gear, evaporimeter, and the oil recovery apparatus that has refrigerating function concurrently described in above arbitrary embodiment.The oil recovery apparatus that has refrigerating function concurrently by this carries out heat exchange by the high temperature grease in the fuel tank of the rich oil refrigerant in the refrigerant circulation circuit of refrigeration system and compressor, after making the refrigerant heat absorption in rich oil refrigerant, evaporation becomes gaseous state, reached the object of separated refrigerant and lubricating oil, and then the refrigerant after separation and lubricating oil are returned to respectively to corresponding closed circuit, realized sneaking into the recovery of the lubricating oil in refrigerant; With respect to prior art, the embodiment of the present application has improved the purity of the lubricating oil reclaiming greatly, has improved organic efficiency, has solved the problem of prior art.Meanwhile, also reached the object of cutting oil by the heat exchanging process of above-mentioned oil recovery apparatus, cooled lubricating oil can be reused for treats the lubricated, cooling of lubricating component, thereby in refrigeration system, no longer needs to configure separately lubricant oil cooling apparatus; The embodiment of the present application does not need to introduce outside thermal source and cooling medium, take rich oil refrigerant as cold fluid, carry out heat exchange from the lubricating oil of fuel tank as hot fluid, the byproduct of cold fluid and hot fluid the other side's heat exchange each other, realized energy rationally, effectively conversion, greatly reduced lubricating oil recovery, lubricated oil cooled cost.
In the embodiment of the present application, described compressor is preferably centrifugal compressor, but is not limited only to this.
In the embodiment of the present application, the preferred flooded evaporator of described evaporimeter or downward film evaporator, but be not limited only to this.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the application.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can be in the situation that do not depart from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. have an oil recovery apparatus for refrigerating function concurrently, be applied to a refrigeration system, described refrigeration system comprises compressor, condenser, expansion gear and evaporimeter; Described compressor, condenser, expansion gear and evaporimeter are connected to form refrigerant circulation circuit in turn by refrigerant pipeline; Described compressor is provided with a fuel tank that stores lubricating oil, and described fuel tank bottom arranges an oil-out, is provided with an oil pump in described fuel tank; Described oil pump is for pumping the lubricating oil of described fuel tank from the oil-out of described fuel tank; It is characterized in that, described in have refrigerating function concurrently oil recovery apparatus comprise: separative element;
Described separative element comprises: Vertical Heat switch, flow line, petroleum pipeline, first drive pipeline and the first induction apparatus;
Described flow line runs through described Vertical Heat switch from top to bottom; The upper port of described flow line is connected to the oil-out of described fuel tank, and the lower port of described flow line is connected to respectively described first and drives one end of pipeline and one end of described petroleum pipeline;
The other end of described petroleum pipeline is connected to treats lubricating component;
The drive end of described the first induction apparatus is connected to the other end of described the first driving pipeline; The injection end of described the first induction apparatus is communicated with described refrigerant circulation circuit, to flow into low-temp low-pressure rich oil refrigerant; The mixing end of described the first induction apparatus is communicated with the inner chamber of described Vertical Heat switch;
Described Vertical Heat switch is for carrying out heat exchange by the HTHP lubricating oil in the low-temp low-pressure rich oil refrigerant of inflow and described flow line;
The bottom of described Vertical Heat switch is provided with an oil return opening; Described oil return opening is communicated with described fuel tank;
The top of described Vertical Heat switch is provided with refrigerant exit; Described refrigerant exit is communicated with described refrigerant circulation circuit.
2. the oil recovery apparatus that has refrigerating function concurrently according to claim 1, is characterized in that, also comprises oil return unit;
Described oil return unit comprises: the second induction apparatus, second drives pipeline and oil return pipeline;
One end of described the second driving pipeline is connected to the lower port of described flow line; The other end of described the second driving pipeline is connected to the drive end of described the second induction apparatus;
The injection of described the second induction apparatus is terminated at described oil return opening; The mixing end of described the second induction apparatus is communicated with described fuel tank by described oil return pipeline.
3. the oil recovery apparatus that has refrigerating function concurrently according to claim 2, is characterized in that, described oil return unit also comprises float-controlled valve;
Described float-controlled valve is arranged at described Vertical Heat switch inside, described oil return opening place.
4. the oil recovery apparatus that has refrigerating function concurrently according to claim 1, is characterized in that, described compressor is provided with the inlet guide vane that regulates inspiratory capacity size; The described oil recovery apparatus that has refrigerating function concurrently also comprises refrigerant reflux unit;
Described refrigerant reflux unit comprises refrigerant return pipe line;
One end of described refrigerant return pipe line is connected to described refrigerant exit, and the other end is connected to described inlet guide vane front end.
5. the oil recovery apparatus that has refrigerating function concurrently according to claim 4, is characterized in that, described refrigerant reflux unit also comprises the first pressure sensor, the second pressure sensor, the first magnetic valve, the second magnetic valve and solenoid valve controller;
Described the first pressure sensor is arranged at the exit of described evaporimeter, for detection of the first pressure of the exit gaseous coolant of described evaporimeter;
Described the second pressure sensor is arranged at described Vertical Heat switch top, for detection of the second pressure of described Vertical Heat switch top gaseous coolant;
Described the first magnetic valve is arranged on the injection end and the pipeline between described refrigerant circulation circuit that is communicated with described the first induction apparatus;
Described the second magnetic valve is arranged on described refrigerant return pipe line;
Described solenoid valve controller is for when the difference of described the second pressure and described the first pressure is greater than the first setting value, control described the first closed electromagnetic valve, described the second magnetic valve unlatching, when the difference of described the second pressure and described the first pressure is less than the second setting value, control described the first magnetic valve unlatching, described the second closed electromagnetic valve; Wherein, described the first setting value is greater than described the second setting value.
6. according to the oil recovery apparatus that has refrigerating function concurrently described in claim 1～5 any one, it is characterized in that, the injection end of described the first induction apparatus is communicated with by rich oil refrigerant export pipeline with described evaporimeter.
7. a refrigeration system, comprises compressor, condenser, expansion gear and evaporimeter; Described compressor, condenser, expansion gear and evaporimeter are connected to form refrigerant circulation circuit in turn by refrigerant pipeline; Described compressor is provided with a fuel tank that stores lubricating oil, and described fuel tank bottom arranges an oil-out, is provided with an oil pump in described fuel tank; Described oil pump is for pumping the lubricating oil of described fuel tank from the oil-out of described fuel tank; It is characterized in that, also comprise the oil recovery apparatus that has refrigerating function concurrently as described in claim 1～6 any one.
8. refrigeration system according to claim 7, is characterized in that, described compressor comprises centrifugal compressor.
9. refrigeration system according to claim 7, is characterized in that, described evaporimeter comprise following any: flooded evaporator and downward film evaporator.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266419A (en) * | 2014-10-25 | 2015-01-07 | 哈尔滨兴旺制冷设备有限责任公司 | Injection streaming cooling oil separator and method for cooling oil and separating oil |
| CN105115197A (en) * | 2015-08-18 | 2015-12-02 | 松下压缩机(大连)有限公司 | Compressor lubricating oil cooling system and control method thereof |
| CN106440538A (en) * | 2016-10-21 | 2017-02-22 | 珠海格力电器股份有限公司 | Flooded evaporator oil return system and water-cooled air conditioning unit adopting flooded evaporator oil return system |
| CN108317759A (en) * | 2018-01-09 | 2018-07-24 | 重庆美的通用制冷设备有限公司 | Refrigeration unit |
| CN108954916A (en) * | 2018-06-15 | 2018-12-07 | 重庆美的通用制冷设备有限公司 | Water cooler and its method for controlling oil return |
| CN110986428A (en) * | 2019-12-18 | 2020-04-10 | 珠海格力电器股份有限公司 | Novel oil return system capable of purifying refrigerant, centrifugal unit and control method of centrifugal unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5027606A (en) * | 1988-05-27 | 1991-07-02 | Cpi Engineering Services, Inc. | Rotary displacement compression heat transfer systems incorporating highly fluorinated refrigerant-synthetic oil lubricant compositions |
| CN1289895A (en) * | 1999-09-27 | 2001-04-04 | 开利公司 | Lubricating system of helical-lobe compressor for oil distiller |
| US6233967B1 (en) * | 1999-12-03 | 2001-05-22 | American Standard International Inc. | Refrigeration chiller oil recovery employing high pressure oil as eductor motive fluid |
| US20040003608A1 (en) * | 2002-07-08 | 2004-01-08 | Hirotsugu Takeuchi | Ejector cycle |
| CN101737331A (en) * | 2008-11-10 | 2010-06-16 | 上海日立电器有限公司 | Integral structure of liquid reservoir and oil separator of compressor |
| US20130186128A1 (en) * | 2010-03-05 | 2013-07-25 | Lg Electronics Inc. | Chiller |
| CN203657303U (en) * | 2013-12-31 | 2014-06-18 | 烟台荏原空调设备有限公司 | Oil recovery device with cooling function and refrigerating system applying same |
-
2013
- 2013-12-31 CN CN201310751228.XA patent/CN103673437B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5027606A (en) * | 1988-05-27 | 1991-07-02 | Cpi Engineering Services, Inc. | Rotary displacement compression heat transfer systems incorporating highly fluorinated refrigerant-synthetic oil lubricant compositions |
| CN1289895A (en) * | 1999-09-27 | 2001-04-04 | 开利公司 | Lubricating system of helical-lobe compressor for oil distiller |
| US6233967B1 (en) * | 1999-12-03 | 2001-05-22 | American Standard International Inc. | Refrigeration chiller oil recovery employing high pressure oil as eductor motive fluid |
| US20040003608A1 (en) * | 2002-07-08 | 2004-01-08 | Hirotsugu Takeuchi | Ejector cycle |
| CN101737331A (en) * | 2008-11-10 | 2010-06-16 | 上海日立电器有限公司 | Integral structure of liquid reservoir and oil separator of compressor |
| US20130186128A1 (en) * | 2010-03-05 | 2013-07-25 | Lg Electronics Inc. | Chiller |
| CN203657303U (en) * | 2013-12-31 | 2014-06-18 | 烟台荏原空调设备有限公司 | Oil recovery device with cooling function and refrigerating system applying same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266419A (en) * | 2014-10-25 | 2015-01-07 | 哈尔滨兴旺制冷设备有限责任公司 | Injection streaming cooling oil separator and method for cooling oil and separating oil |
| CN104266419B (en) * | 2014-10-25 | 2019-01-25 | 哈尔滨兴旺制冷设备有限责任公司 | Jetting type cooling oil oil eliminator and cooling oil separate oily method |
| CN105115197A (en) * | 2015-08-18 | 2015-12-02 | 松下压缩机(大连)有限公司 | Compressor lubricating oil cooling system and control method thereof |
| CN106440538A (en) * | 2016-10-21 | 2017-02-22 | 珠海格力电器股份有限公司 | Flooded evaporator oil return system and water-cooled air conditioning unit adopting flooded evaporator oil return system |
| CN108317759A (en) * | 2018-01-09 | 2018-07-24 | 重庆美的通用制冷设备有限公司 | Refrigeration unit |
| CN108954916A (en) * | 2018-06-15 | 2018-12-07 | 重庆美的通用制冷设备有限公司 | Water cooler and its method for controlling oil return |
| CN110986428A (en) * | 2019-12-18 | 2020-04-10 | 珠海格力电器股份有限公司 | Novel oil return system capable of purifying refrigerant, centrifugal unit and control method of centrifugal unit |
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|---|---|
| CN103673437B (en) | 2016-01-06 |
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Address after: Yongda road in Shandong city of Yantai province Fushan hi tech Industrial Zone No. 720 Co-patentee after: Ebara Refrigeration Equipment Patentee after: Ebara (Chinese) Co. Ltd and cooling system Address before: Yongda road 265500 Shandong province Yantai Fushan hi tech Industrial Zone No. 720 Co-patentee before: Ebara Refrigeration Equipment Patentee before: Renyuan Air Conditioner Equipment Co., Ltd., Yantai City |