CN105422419A - Compressor and oil-return switching method - Google Patents
Compressor and oil-return switching method Download PDFInfo
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- CN105422419A CN105422419A CN201510819095.4A CN201510819095A CN105422419A CN 105422419 A CN105422419 A CN 105422419A CN 201510819095 A CN201510819095 A CN 201510819095A CN 105422419 A CN105422419 A CN 105422419A
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- Prior art keywords
- oil
- compressor
- pipe road
- equalizing pipe
- return
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0207—Lubrication with lubrication control systems
Abstract
The invention discloses a compressor and an oil-return switching method. The compressor comprises an oil return pipeline and an oil uniformizing pipeline. The inlet end of the oil uniformizing pipeline and the outlet end of the oil return pipeline are connected to a bottom oil pool of the compressor, the inlet end of the oil return pipeline is connected to an oil return port of an upper oil pool of the compressor, and a preset oil level is set in the bottom oil pool of the compressor. The compressor further comprises an oil way switching device connected with the oil uniformizing pipeline and the oil return pipeline, and the oil way switching device has an oil uniformizing state and an oil return state. The compressor is capable of quickly returning oil and quickly uniformizing oil, oil balancing time is greatly shortened, existing oil is fully utilized for being distributed between all compressors, the oiling amount is effectively reduced, and oil utilization cost is reduced.
Description
Technical field
The present invention relates to compressor field, particularly a kind of compressor, the invention still further relates to a kind of oil return switching method, particularly a kind of oil return switching method for compressor.
Background technique
Along with the fast development of multi-joint unit, the Large Copacity formed by multiple compressors and capacity adjustable air-conditioner set application area more and more wider.Multi-joint unit has that pipeline is long, drop is large and the feature such as elbow is many usually, compared with running with single compressor, in multi-joint unit, be easy to occur the oil-poor or poly-oily phenomenon of a certain compressor, in order to ensure that the lubricant oil in multiplex system in each compressor runs under the oil level of safety, multi-joint unit needs the Key technique problem solved to be exactly keep oily balancing technique reliable and stable between multiple compressors.
Existing comparatively ripe oily balancing technique adopts oil equalizing pipe structure, by connecting the oil equalizing pipe of oil sump bottom compressor exhaust pipe and compressor in compression case external body, lubricant oil in oil sump bottom the compressor of poly-for appearance oily phenomenon is drained in the liquid container of system by pressure reduction in time that rely on oil equalizing pipe two ends rate of flow of fluid difference to produce, preventing lubricant oil from assembling in a certain compressor causes other compressors oil-poor, realizes the oil balance in multiplex system.Although this technology structure is simple, but when compressor carries out oil equilibrium according to air-breathing oil return, if the inner oil return of compressor is slow or exhaust oil shortage ratio is high, will cause can not arriving at oil sump bottom compressor in time from the lubricant oil entrained by compressor air suction, whole system oil equilibrium time length and system now can be caused to need the problems such as oil filling amount is many, system oil equilibrium time is long means that the time that compressor may operate under oil starvation state is long, reduce the reliability of multi-joint unit, oil filling amount can increase the cost of multi-joint unit at most.
Summary of the invention
A kind of compressor and oil return switching method are provided in the embodiment of the present invention, the time that oily equilibrium time in prior art is long to solve, oil filling amount demand causes compressor may operate under oil starvation state more is long, and oil filling amount causes increasing the problems such as the cost of multi-joint unit more.
For achieving the above object, the invention provides a kind of compressor, comprise return line and oil equalizing pipe road, the entry end on oil equalizing pipe road is connected to the bottom oil sump being arranged in compressor, the entry end of return line is connected to the return opening of compressor top oil sump, in the bottom oil sump of compressor, have default oil level; Compressor also comprises the oil-way switching apparatus be all connected with oil equalizing pipe road and return line, when oil-way switching apparatus has that oil level is higher than default oil level in the oil sump of bottom, makes the oil return in return line flow to the equal oil condition on oil equalizing pipe road; And, when oil level is less than or equal to default oil level in the oil sump of bottom, make the oil return in return line flow to the oil return state of bottom oil sump.
As preferably, oil-way switching apparatus also comprises solenoid valve, all oil end connecting tube and oil sump end connecting tube; The outlet end of return line is connected with the entrance of solenoid valve; The equal oil end first end of connecting tube exports with first of solenoid valve and is connected, and all the second end of oil end connecting tube is communicated with oil equalizing pipe road; The first end of oil sump end connecting tube and second of solenoid valve exports and is connected, and oil sump end connecting tube second end is communicated with bottom oil sump.
As preferably, in the bottom oil sump of compressor, be provided with fuel level sensor, fuel level sensor is arranged on the height of default oil level.
As preferably, the height presetting oil level is not less than the height of the entry end on oil equalizing pipe road.
As preferably, compressor also comprises the gas exhaust piping being positioned at compressor top, and the outlet end on oil equalizing pipe road is connected with gas exhaust piping.
As preferably, oil-way switching apparatus comprises liquid collecting tank; Liquid collecting tank is connected on oil equalizing pipe road, and is connected with oil equalizing pipe road by the entry end on oil equalizing pipe road; The upper end of liquid collecting tank is connected with return line, and the lower end of liquid collecting tank is communicated with bottom oil sump by liquid collecting tank return line.
As preferably, return line extends to the bottom of liquid collecting tank from the upper end of liquid collecting tank.
As preferably, the height of the entry end on oil equalizing pipe road is consistent with the height of the default oil level of oil sump.
As preferably, the diameter on the diameter < oil equalizing pipe road of the diameter < liquid collecting tank return line of the diameter=return line of the entry end on oil equalizing pipe road.
The present invention also provides the oil return switching method of the compressor in a kind of above-mentioned any one technological scheme, and oil return switching method comprises: when in the oil sump of bottom, oil level is higher than default oil level, makes the oil return in return line flow to oil equalizing pipe road to realize equal oil; And, when oil level is less than or equal to default oil level in the oil sump of bottom, make the oil return in return line flow to bottom oil sump to realize oil return.
The compressor that the present invention relates to and oil return switching method, quick oil return and quick all oil can be realized by arranging return line, oil equalizing pipe road and oil-way switching apparatus within the compressor, oily equilibrium time is significantly reduced, make full use of existing oil mass to distribute between each compressor, effective reduction oil filling amount, reduces and uses oily cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of compressor under quick all oil conditions that the present invention relates to;
Fig. 2 is the structural representation of compressor under quick oil return state that the present invention relates to;
Fig. 3 is that the another kind that the present invention relates to revolves the structural representation of compressor under quick all oil conditions;
Fig. 4 is the structural representation of another kind of compressor under quick oil return state that the present invention relates to;
Fig. 5 is the structural representation of the liquid collecting tank that the present invention relates to;
Fig. 6 is the fundamental diagram under quick all oil conditions of the liquid collecting tank that the present invention relates to;
Fig. 7 is the fundamental diagram under quick oil return state of the liquid collecting tank that the present invention relates to.
Description of reference numerals: 1, suction line; 2, compressor; 3, fuel level sensor; 4, oil sump; 5, all connecting tube held by oil; 6, solenoid valve; 7, oil equalizing pipe road; 8, return line; 9, gas exhaust piping; 10, liquid container; 11, liquid collecting tank; 12, liquid collecting tank return line; 13, lubricant oil; 51, oil sump end connecting tube; 71, the entry end on oil equalizing pipe road; 72, the outlet end on oil equalizing pipe road; 81, the entry end of return line.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Fig. 1 shows a kind of compressor 2, it comprises exterior line parts, these exterior line parts comprise suction line 1, gas exhaust piping 9, oil equalizing pipe road 7 and return line 8, wherein, suction line 1 is positioned at the top of compressor 2, gas exhaust piping 9 is positioned at the top of compressor 2, compressor 2 is connected with liquid container 10 by gas exhaust piping 9, the outlet end 72 on oil equalizing pipe road 7 is connected with gas exhaust piping 9, and the entry end 71 on oil equalizing pipe road 7 is connected to as the lower inlet on oil equalizing pipe road 7 and is arranged in compressor 2 and is vented cavity bottom oil sump 4; Return line 8 is connected to the return opening of compressor 2 top oil sump by its entry end 81, the outlet end of return line 8 is connected to bottom oil sump 4, in the described bottom oil sump 4 of described compressor, there is default oil level, can make like this to accumulate in and enter return line 8 for the lubricant oil lubricating each friction pair of the pump housing by the entry end 81 of return line 8 in the oil sump of compressor 2 top.
This compressor also comprises the oil-way switching apparatus be all connected with oil equalizing pipe road 7 and return line 8, when oil-way switching apparatus has that oil level is higher than default oil level in bottom oil sump 4, makes the oil return in return line 8 flow to the equal oil condition on oil equalizing pipe road 7; And, when oil level is less than or equal to default oil level in bottom oil sump 4, make the oil return in return line 8 flow to the oil return state of bottom oil sump 4.This oil-way switching apparatus comprises solenoid valve 6, all oil end connecting tube 5 and oil sump end connecting tube 51, wherein, the outlet end of return line 8 holds one end of connecting tube 5 to be connected with one end of oil sump end connecting tube 51 by solenoid valve 6 with all oily, wherein, the connected state of solenoid valve 6 pilot line, it is preferably three-way valve or three two three-way electromagnetic valves.In addition, the other end of equal oil end connecting tube 5 is connected with oil equalizing pipe road 7, the other end of oil sump end connecting tube 51 is connected to oil sump 4, the lubricant oil refluxed from oil equalizing pipe road 7 can be made like this to rely on solenoid valve 6 to control to be transported in oil equalizing pipe road 7 by all oily end connecting tube 5, also can be transported to bottom compressor 2 in oil sump 4 by bottom oil sump end connecting tube 51, realize the switching of oil return and equal oil condition, and the impact of oil return process not machine internal gas flow disturbance by compression, compressor oil return is rapid, decrease compressor air-discharging band oil mass simultaneously, make air-breathing oil return better effects if.In addition, fuel level sensor 3 is provided with in the bottom of compressor 2.Fuel level sensor 3 in this embodiment is used for arranging the level height monitoring oil sump 4 bottom compressor 2, and simultaneously by the level height of oil sump 4 bottom hydraulic compression machine 2, Controlling solenoid valve 6 commutates according to the signal of fuel level sensor 3.Wherein, top oil sump refers to that accumulation space is collected for the lubricant oil lubricating Pump Body Parts and bearing in compressor top, the current return circuit of this part oil sump lubricant oil is directly refluxed by outer tube, reduce the impact of compressor internal disturbance air-flow, make back-flow velocity faster compressor air-discharging band oil mass few.
For the position of the entry end 71 on oil equalizing pipe road 7, when bottom compressor 2, in oil sump 4, oil level did not have an entry end 71 on oil equalizing pipe road 7, relative to the rate of flow of fluid (exhaust flow rate) at outlet end 72 place on oil equalizing pipe road 7, the rate of flow of fluid at entry end 71 place on oil equalizing pipe road is approximately zero, according to Bernoulli's equation, because rate of flow of fluid difference causes hydrostatic pressure head different, the entry end 71 place hydrostatic pressure head on oil equalizing pipe road 7 is large, the outlet end 72 place static pressure head on oil equalizing pipe road 7 is little, therefore, pressure reduction is produced at two ends, oil equalizing pipe road 7, the principle of oil equalizing pipe work utilizes this pressure reduction to be transported in gas exhaust piping 9 by the lubricant oil at entry end 71 place higher than oil equalizing pipe road 7 just, prevent lubricant oil in oil sump 4 inner accumulated, avoid causing other compressor oil starvations in system, bottom compressor 2 during entry end 71 place of the level height of oil sump 4 lower than oil equalizing pipe road 7, lubricant oil in oil sump 4 now cannot enter gas exhaust piping 9 by oil equalizing pipe road 7, compressor 2 receives the lubricant oil from system by air-breathing oil return, rely on quick return line 8 to ensure in compressor 2, lubricant oil can not discharge compressor 2 by vent strip oil, can ensure that bottom compressor 2, oil sump 4 is in default oil level always so simultaneously.
The control of lubricating oil flow can be carried out by the oil level different according to oil sump 4 for adopting the exterior line parts of above-mentioned compressor 2, this control mainly comprises two kinds of working staties, as shown in Figure 1, particularly, in a kind of working state, when oil sump 4 oil level that fuel level sensor 3 is monitored is higher than setting oil level value, wherein, the setting value of oil sump 4 oil level should be not less than the height of the entry end 71 of oil equalizing pipe road 7 oil sump 4 bottom compressor 2.Fuel level sensor 3 by this signal feed back to solenoid valve 6, Controlling solenoid valve 6 commutates, now solenoid valve 6 cuts off the path between return line 8 and oil sump end connecting tube 51, open return line 8 and all oily path holding connecting tube 5, the lubricant oil refluxed from the oil sump of compressor 2 top is transported in liquid container 10 by return line 8, all oil end connecting tube 5, oil equalizing pipe road 7 and gas exhaust piping 9.Like this, when in compressor a certain in multicomputer system, oil sump oil level is higher than setting value, in this compressor oil sump, lubricant oil is transported in liquid container normally through oil equalizing pipe road, simultaneously, compared to compressor in the past, now again can not be back to bottom compressor be delivered directly to system liquid container in oil sump from the lubricant oil of compressor top oil sump backflow, this compressor be had to the effect of all oil fast, on the other hand the compressor of oil starvation be had to the effect of quick oil return.
Another working state of the present embodiment as shown in Figure 2, in another working state, when level height bottom compressor 2 in oil sump 4 is lower than setting oil level value, fuel level sensor 3 by this signal feed back to solenoid valve 6, Controlling solenoid valve 6 commutates, now the path between return line 8 and oil sump end connecting tube 51 opened by solenoid valve 6, cut off return line 8 and all oil hold the path between connecting tube 5, the lubricant oil refluxed from the oil sump of compressor 2 top to be directly back to bottom compressor 2 in oil sump 4 by return line 8, oil sump end connecting tube 51.Therefore, when in compressor a certain in system, oil sump oil level is lower than setting value, by the connected state of electromagnetic valve reflow pipe and connecting pipeline, pass through bottom return line 8, the direct quick backflow to compressor 2 of oil sump end connecting tube 51 from the lubricant oil of compressor top oil sump backflow, can in time by the oil mass of oil sump 4 bottom self backflow make up compressor 2, and be unlikely to, because compressor self backflow is slow or the reducing sharply of oil sump oil mass bottom the oily problem aggravation compressor such as many of vent strip, namely to cause oil starvation to endanger at short notice.
According to the level height of oil sump 4 bottom compressor 2, in time the lubricant oil refluxed by return line 8 can be transported to the place needed most like this.That is, when compressor 2 starts poly-oil, return line 8 is not communicated with oil sump 4, and be directly transported in system by oil equalizing pipe road 7, lubricant oil simultaneously bottom compressor 2 in oil sump 4 also discharges compressor 2 by oil equalizing pipe road 7 simultaneously, makes equal oily flow larger, realizes fast all oil; And when compressor 2 starts oil-poor, return line 8 is only communicated with oil sump 4 bottom compressor 2, all be transported to rapidly in oil sump 4 from the lubricant oil of compressor 2 top oil sump backflow, and the lubricant oil of bottom oil sump 4 now cannot be discharged by oil equalizing pipe road 7, ensure that oil sump 4 oil level can arrive rapidly default oil level.
Therefore, the level height that fuel level sensor 3 in embodiment as shown in Figure 1, 2 can set should be not less than the entry end 71 on the oil equalizing pipe road 7 of compressor, the level height design load of fuel level sensor 3 is higher, and all oil condition is late for the return line 8 of compressor 2, and oil return state early.
At such as Fig. 1, in embodiment shown in 2, the entry end 81 of return line 8 can be seal to access in the top oil sump of compressor 2 with the access of compressor 2 top oil sump, lubricant oil in the oil sump of compressor 2 top is not revealed when entry end 81 place by return line 8, this coupled condition can make the lubricant oil in the oil sump of compressor 2 top have the advantages that backflow efficiency is high and vent strip oil is few, entry end 81 place that also can be arranged in return line 8 offers oil leak hole by compressor 2 internal face, shunt after making the lubricant oil in the oil sump of top enter the entry end 81 of return line 8, a part continues through return line 8 and refluxes, another part flows down from oil leak hole along compressor 2 inwall, by clearance backflow between motor stator and compressor 2 inwall to the bottom oil sump 4 of compressor 2, this branching part lubricant oil is used for playing the effect of part cooling motor.
Fig. 3 shows another embodiment, the difference of itself and the first embodiment is, solenoid valve 6 in the first embodiment and fuel level sensor 3 is replaced by arranging outside liquid collecting tank 11, the structural type of liquid collecting tank 11 described here as shown in Figure 5, particularly, the upper end of liquid collecting tank 11 is connected to return line 8, and return line 8 is inserted into the bottom of liquid collecting tank 11 always; The lower end of liquid collecting tank 11 is communicated with oil sump 4 bottom compressor 2 by liquid collecting tank return line 12, for by oil sump 4 bottom the oil return in the middle of liquid collecting tank 11 to compressor 2; Liquid collecting tank 11 is arranged in oil equalizing pipe road 7, the entry end 71 on oil equalizing pipe road 7 is connected with oil equalizing pipe road 7, wherein, each pipeline caliber: d71 (diameter of the entry end 71 on oil equalizing pipe road 7)=d8 (diameter of return line 8) <d12 (diameter of liquid collecting tank return line 12) <d7 (diameter on oil equalizing pipe road 7), it is consistent that setting height(from bottom) and the oil sump 4 bottom compressor 2 of the entry end 71 on oil equalizing pipe road 7 preset level height.Lubricant level bottom compressor 2 in oil sump 4 is higher than the entry end 71 (lubricant oil start to be collected at bottom compressor 2 in oil sump 4) on oil equalizing pipe road 7, lubricant level height now in liquid collecting tank 11 is also higher than the height on oil equalizing pipe road 7, the lubricated oil sealing in one end on oil equalizing pipe road 7 closes, the other end is in high speed exhaust state, difference due to two ends airspeed causes two ends, oil equalizing pipe road 7 to form pressure reduction, liquid collecting tank 11 being communicated with lubricant oil unnecessary in oil sump 4 bottom compressor 2 under the effect of pressure reduction is transported in gas exhaust piping 9, until bottom compressor 2 level height of oil sump 4 lower than the entry end 71 on oil equalizing pipe road 7, now, lubricant oil in compressor 2 is not discharged by oil equalizing pipe road 7.As shown in Fig. 3 and Fig. 6 arrow, by adopting the equal oil/displacement configuration of the liquid collecting tank 11 of the present embodiment, when bottom compressor 2, the oil level of oil sump 4 is higher than default oil level, in oil equalizing pipe road 7 pressure reduction effect under, lubricant oil 13 bottom compressor 2 in oil sump 4 is inhaled into liquid collecting tank 11 by the entry end 71 on oil equalizing pipe road 7, liquid collecting tank return line 12, in the oil sump of compressor 2 top, the lubricant oil 13 of backflow enters liquid collecting tank 11 by return line 8, and the lubrication in final liquid collecting tank 11 is all discharged by oil equalizing pipe road 7.Like this, under the effect of two ends, oil equalizing pipe road 7 pressure reduction, the lubricant oil flowed into from oil sump 4 bottom compressor 2 and top oil sump in liquid collecting tank 11 is discharged compressor 2 in time, because the entry end 71 on oil equalizing pipe road 7 can have three road lubricant oil 13 to flow into path discharge by liquid collecting tank 11, add equal oil quality flow.
As Fig. 4 with as shown in Fig. 7 arrow, bottom compressor 2 during the entry end 71 of the oil level of oil sump 4 lower than oil equalizing pipe road 7, bottom compressor 2, first oil sump 4 disconnects with oil equalizing pipe road 7, lubricant oil in the oil sump 4 of bottom can not be discharged by oil equalizing pipe road 7, simultaneously, lubricant level height in liquid collecting tank 11 now also can be consistent lower than oil sump 4 oil level bottom oil equalizing pipe road 7 and compressor 2, the lubricant oil refluxed by return line 8 can not be discharged by oil equalizing pipe road 7, the lubricant oil of compressor 2 top oil sump backflow to be back to bottom compressor in oil sump by liquid collecting tank return line 12 bottom liquid collecting tank 11, like this, lubricant oil bottom compressor in oil sump and liquid collecting tank cannot enter oil equalizing pipe, and now can be back to oil sump bottom compressor in time by liquid collecting tank by the lubrication that reflow pipe refluxes, oil sump capacity bottom timely make up compressor.
The present invention also provides a kind of oil return switching method of aforementioned compressor, comprising: when in the oil sump of bottom, oil level is higher than default oil level, makes the oil return in return line flow to oil equalizing pipe road to realize equal oil; And, when oil level is less than or equal to default oil level in the oil sump of bottom, make the oil return in return line flow to bottom oil sump to realize oil return.
Embodiments of the invention are only the descriptions carried out the preferred embodiment of the present invention; not design of the present invention and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various modification that in related domain, engineers and technicians make technological scheme of the present invention and improvement; protection scope of the present invention all should be fallen into; the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (10)
1. a compressor, comprise return line (8) and oil equalizing pipe road (7), the entry end (71) of described oil equalizing pipe road (7) is connected to the bottom oil sump (4) being arranged in described compressor, the entry end (81) of described return line (8) is connected to the return opening of described compressor top oil sump, in described bottom oil sump (4) of described compressor, have default oil level; It is characterized in that,
Described compressor also comprises the oil-way switching apparatus be all connected with described oil equalizing pipe road (7) and described return line (8), when oil level is higher than described default oil level during described oil-way switching apparatus has in described bottom oil sump (4), the oil return in described return line (8) is made to flow to the equal oil condition of described oil equalizing pipe road (7); And, when oil level is less than or equal to described default oil level in described bottom oil sump (4), make the oil return in described return line (8) flow to the oil return state of described bottom oil sump (4).
2. compressor according to claim 1, is characterized in that, described oil-way switching apparatus also comprises solenoid valve (6), all oil end connecting tube (5) and oil sump end connecting tube (51);
The outlet end of described return line (8) is connected with the entrance of described solenoid valve (6);
The first end of described equal oil end connecting tube (5) exports with first of described solenoid valve (6) and is connected, and the second end of described equal oil end connecting tube (5) is communicated with described oil equalizing pipe road (7);
The first end of described oil sump end connecting tube (51) exports with second of described solenoid valve (6) and is connected, and described oil sump end connecting tube (51) second end is communicated with described bottom oil sump (4).
3. compressor according to claim 1 and 2, it is characterized in that, in described bottom oil sump (4) of described compressor, be provided with fuel level sensor (3), described fuel level sensor (3) is arranged on the height of described default oil level.
4. compressor according to claim 3, is characterized in that, the height of described default oil level is not less than the height of the entry end (71) of described oil equalizing pipe road (7).
5. compressor according to claim 4, it is characterized in that, described compressor also comprises the gas exhaust piping (9) being positioned at described compressor top, and the outlet end (72) of described oil equalizing pipe road (7) is connected with described gas exhaust piping (9).
6. compressor according to claim 1, is characterized in that, described oil-way switching apparatus comprises liquid collecting tank (11);
Described liquid collecting tank (11) is connected on described oil equalizing pipe road (7), and is connected with described oil equalizing pipe road (7) by the entry end (71) of described oil equalizing pipe road (7);
The upper end of described liquid collecting tank (11) is connected with described return line (8), and the lower end of described liquid collecting tank (11) is communicated with described bottom oil sump (4) by liquid collecting tank return line (12).
7. compressor according to claim 6, is characterized in that,
Described return line (8) extends to the bottom of described liquid collecting tank (11) from the upper end of described liquid collecting tank (11).
8. the compressor according to claim 6 or 7, is characterized in that, the height of the entry end (71) of described oil equalizing pipe road (7) is consistent with the height of the described default oil level of described oil sump (4).
9. compressor according to claim 8, it is characterized in that, the diameter on oil equalizing pipe road (7) described in the diameter < of liquid collecting tank return line (12) described in the diameter < of the diameter=described return line (8) of the entry end (71) of described oil equalizing pipe road (7).
10. the oil return switching method of the compressor according to any one of a claim 1 to 9, it is characterized in that, described oil return switching method comprises: when oil level is higher than described default oil level in described bottom oil sump (4), make the oil return in described return line (8) flow to described oil equalizing pipe road (7) to realize equal oil; And, when oil level is less than or equal to described default oil level in described bottom oil sump (4), make the oil return in described return line (8) flow to described bottom oil sump (4) to realize oil return.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819095.4A CN105422419B (en) | 2015-11-20 | 2015-11-20 | A kind of compressor and oil return switching method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510819095.4A CN105422419B (en) | 2015-11-20 | 2015-11-20 | A kind of compressor and oil return switching method |
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| Publication Number | Publication Date |
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| CN105422419A true CN105422419A (en) | 2016-03-23 |
| CN105422419B CN105422419B (en) | 2017-11-10 |
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| CN201510819095.4A Active CN105422419B (en) | 2015-11-20 | 2015-11-20 | A kind of compressor and oil return switching method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425140A (en) * | 2019-08-12 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor oil level component and rotor compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2616717Y (en) * | 2002-03-16 | 2004-05-19 | 张沈杰 | Compressor with oil balance tube |
| CN1637360A (en) * | 2003-12-25 | 2005-07-13 | 三星电子株式会社 | Oil equalizing method for multi-compressor |
| CN1697927A (en) * | 2003-04-14 | 2005-11-16 | 大金工业株式会社 | Enclosed compressor |
| JP2009150368A (en) * | 2007-12-22 | 2009-07-09 | Samsung Electronics Co Ltd | Oil equalizing mechanism |
| JP2011122556A (en) * | 2009-12-14 | 2011-06-23 | Mitsubishi Heavy Ind Ltd | Compressor |
| EP2484911A2 (en) * | 2011-02-08 | 2012-08-08 | Gardner Denver Oy | Method and equipment for controlling operating temperature of air compressor |
| CN205260257U (en) * | 2015-11-20 | 2016-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
-
2015
- 2015-11-20 CN CN201510819095.4A patent/CN105422419B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2616717Y (en) * | 2002-03-16 | 2004-05-19 | 张沈杰 | Compressor with oil balance tube |
| CN1697927A (en) * | 2003-04-14 | 2005-11-16 | 大金工业株式会社 | Enclosed compressor |
| CN1637360A (en) * | 2003-12-25 | 2005-07-13 | 三星电子株式会社 | Oil equalizing method for multi-compressor |
| JP2009150368A (en) * | 2007-12-22 | 2009-07-09 | Samsung Electronics Co Ltd | Oil equalizing mechanism |
| JP2011122556A (en) * | 2009-12-14 | 2011-06-23 | Mitsubishi Heavy Ind Ltd | Compressor |
| EP2484911A2 (en) * | 2011-02-08 | 2012-08-08 | Gardner Denver Oy | Method and equipment for controlling operating temperature of air compressor |
| CN205260257U (en) * | 2015-11-20 | 2016-05-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425140A (en) * | 2019-08-12 | 2019-11-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor oil level component and rotor compressor |
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| CN105422419B (en) | 2017-11-10 |
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