CN105332916A - Compressor, refrigeration system with same and control method - Google Patents
Compressor, refrigeration system with same and control method Download PDFInfo
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- CN105332916A CN105332916A CN201510925917.7A CN201510925917A CN105332916A CN 105332916 A CN105332916 A CN 105332916A CN 201510925917 A CN201510925917 A CN 201510925917A CN 105332916 A CN105332916 A CN 105332916A
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- Prior art keywords
- compressor
- cylinder
- receiving cavity
- slide plate
- oily passage
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/021—Control systems for the circulation of the lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/20—Flow
- F04C2270/205—Controlled or regulated
Abstract
The invention provides a compressor, a refrigeration system with the same and a control method. The compressor comprises a first air cylinder, a second air cylinder, a sliding piece and an oil passing passage, wherein the second air cylinder is communicated with the first air cylinder and provided with a sliding groove, and a containing cavity is formed in the sliding groove; the sliding piece is arranged in the containing cavity in a sliding mode; the oil passing passage is communicated with the containing cavity. The sliding piece has a first state for opening the oil passing passage and a second state for blocking the oil passing passage. When the sliding piece is in the first state, lubricating oil enters the containing cavity through the oil passing passage. The oil passing passage communicated with the containing cavity is arranged so that lubricating oil can enter the containing cavity, and the lubricating effect of the sliding piece and the inner wall of the containing cavity is effectively improved. Therefore, the work performance of the compressor is improved, and the service life of the compressor is prolonged. The problem of abrasion of an air cylinder of a compressor in the prior art is effectively solved.
Description
Technical field
The present invention relates to Compressor Technology field, in particular to a kind of compressor and refrigeration system and the controlling method with it.
Background technique
As shown in Figure 1 and Figure 2, variable volume compressor of the prior art, the common structure of the pump housing is for comprising master cylinder 20 ' and transfiguration cylinder 30 '.Transfiguration cylinder 30 ' optionally works or does not work, thus realizes the change of work discharge capacity, to adapt to the different burden requirement of refrigeration system, reaches energy-conservation object.A kind of pin 60 ' of existing transfiguration cylinder 30 ' and the switching mode of the first slide plate 33 ' are: the first slide plate 33 ', cylinder and the bearing 10 ' covering cylinder two ends form airtight receiving cavity 31 ' with dividing plate 50 ' etc. at the first slide plate 33 ' afterbody, and this airtight receiving cavity 31 ' alternative passes into high voltage/low voltage refrigeration agent.First slide plate 33 ' side is provided with pin locking/tripper, this device is made up of pin hole 121 ', pin 60 ', spring 61 ' etc., wherein pin 60 ' head communicates with above-mentioned airtight receiving cavity 31 ', pin 60 ' afterbody introduces low pressure refrigerant by low-pressure channel 71 ' 71 ', and is exerted oneself by the precompose that physical unit (as spring 61 ', magnet etc.) makes pin 60 ' have to the first slide plate 33 ' is close.
When above-mentioned airtight receiving cavity 31 ' accesses low pressure, the head of pin 60 ' and the afterbody pressure balance of pin 60 ', pin 60 ' is firmly lower to the first slide plate 33 ' at above-mentioned precompose, when the first slide plate 33 ' moves to certain position, pin 60 ' head projection snaps in groove corresponding to the first slide plate 33 ', thus locking first slide plate 33 '.Now, transfiguration cylinder 30 ' inner carrier and the first slide plate 33 ' depart from, and realize the unloading of transfiguration cylinder 30 '.When above-mentioned airtight receiving cavity 31 ' accesses high-pressure refrigerant, pin 60 ' head is high pressure, and afterbody is low pressure, and differential pressure action overcomes above-mentioned precompose firmly, and pin 60 ' departs from the first slide plate 33 ', thus unlocks the first slide plate 33 '.Transfiguration cylinder 30 ' inner carrier contacts with the first slide plate 33 ', realizes transfiguration cylinder 30 ' and normally compresses.Further, as shown in Figure 1 and Figure 2, drawing reference numeral 11 ' is clutch shaft bearing, and 12 ' is the second bearing, and 13 ' is bent axle, and 21 ' is the second slide plate, and 22 ' is the second roller, and 32 ' is the first roller, and 34 ' is closed cavity, and 35 ' manages for pressure switches.
Variable volume compressor of the prior art has following defect:
When needs transfiguration cylinder 30 ' normally runs, above-mentioned airtight receiving cavity 31 ' then passes into high-pressure refrigerant, and higher pressure refrigerant gas causes the refrigeration oil in airtight receiving cavity 31 ' to be discharged.And between the first slide plate 33 ' and cylinder chute and cylinder upper and lower cover plates 70 ', between all there is certain gap, cannot realize lubricant oil clearance seal, moreover refrigeration agent viscosity is far smaller than lubricant oil, clearance leakage speed is fast.Therefore, by the first slide plate 33 ' side clearance from airtight receiving cavity 31 ' to transfiguration cylinder 30 ', the refrigeration agent of low-pressure channel internal leakage by showed increased, cause transfiguration cylinder 30 ' performance to reduce.On the other hand, owing to lacking the lubrication of refrigeration oil, first slide plate 33 ' and chute, the first slide plate 33 ' and transfiguration cylinder 30 ', cover plate 70 ', between fretting wear aggravate, thus reliability when having had a strong impact on performance and the compressor stable operation of compressor.
Summary of the invention
Main purpose of the present invention is the refrigeration system and the controlling method that provide a kind of compressor and have it, to solve the problem of compresser cylinder wearing and tearing in prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of compressor, comprising: the first cylinder; Second cylinder, lead to the first cylinders, the second cylinder has chute, and chute has receiving cavity; Slide plate, is slidably disposed in receiving cavity; Logical oily passage, is connected with receiving cavity; Wherein, slide plate has the second state that oily passage is led in first state of opening logical oily passage and shutoff, and when slide plate is positioned at the first state, lubricant oil enters in receiving cavity by leading to oily passage.
Further, form closed cavity between one end of the roller away from the second cylinder of slide plate and the inwall of chute, logical oily passage has filler opening and oil outlet, and wherein, when slide plate is positioned at the first state, oil outlet is connected with closed cavity.
Further, the sidewall of closed cavity is provided with switching for the pressure passing into refrigeration agent of being connected with closed cavity manage.
Further, compressor also comprises: cylinder dividing plate, is arranged between the first cylinder and the second cylinder, and logical oily passage is opened in cylinder dividing plate; Wherein, the first cylinder is master cylinder, and the second cylinder is transfiguration cylinder.
Further, compressor also comprises: clutch shaft bearing, is arranged at the below of the second cylinder and connects with the second cylinders.
Further, compressor also comprises: pin receiving cavity, is penetratingly opened on clutch shaft bearing, pin receiving cavity has the first opening and the second opening, when slide plate is positioned at the first state, the first opening is connected with receiving cavity, and the second opening is connected with the low-pressure channel that compressor is arranged; Pin, is arranged in pin receiving cavity movably, and pin has the lockup state of locking slide plate and departs from the released state of slide plate.
Further, compressor also comprises cover plate, and cover plate is arranged at the below of clutch shaft bearing, and cover plate is provided with the low-pressure channel be connected with pin receiving cavity.
Further, compressor also comprises: cylinder dividing plate, be arranged between the first cylinder and the second cylinder, cylinder dividing plate and the second cylinders connect, logical oily channel setting is on the second cylinder, cylinder dividing plate and clutch shaft bearing, or logical oily passage 40 is arranged on any one or any two in the second cylinder, cylinder dividing plate and clutch shaft bearing.
Further, logical one end of oily passage is connected with the oil sump of compressor, and the other end of logical oily passage is connected with closed cavity.
According to another aspect of the present invention, provide a kind of compressor refrigeration system, comprise compressor, compressor be above-mentioned in compressor.
Further, compressor refrigeration system comprises: condenser, and the entry end of condenser switches pipe with the relief opening of compressor with the pressure of compressor respectively and is connected; Flow controller, the entry end of flow controller is connected with the outlet end of condenser; Vaporizer, the entry end of vaporizer is connected with the outlet end of flow controller, and the outlet end of vaporizer switches to manage with pressure respectively and is connected with the low-pressure channel of compressor; Liquid trap, one end of liquid trap is connected with compressor, and the other end of liquid trap is connected with the outlet end of vaporizer.
Further, compressor refrigeration system also comprises: the first valve, and the first valve is arranged at pressure and switches and manage on the pipeline that is connected with condenser; Second valve, has import and outlet, the import of the second valve be connected vaporizer and be connected with the first pipeline of liquid trap, outlet and the Bonding pressure of the second valve switch the second pipe of managing with the first valve and are connected.
According to a further aspect in the invention, provide a kind of controlling method of compressor refrigeration system, for controlling compressor refrigeration system, compressor refrigeration system be above-mentioned in compressor refrigeration system, controlling method comprises the control of the mode of operation of the second cylinder to compressor, and the control of mode of operation comprises the following steps:
Step S01: cut off the pipeline connected between receiving cavity and vaporizer, and be communicated with the pipeline between compressor and receiving cavity;
Step S02: form closed cavity between one end of the roller away from the second cylinder of slide plate and the inwall of chute, the high-pressure refrigerant of discharging from compressor is passed in closed cavity, reciprocatingly slide between a first state and a second state to make slide plate, when slide plate is positioned at the first state, lubricant oil enters closed cavity by logical oily passage.
Further, step S02 comprises: passed into by the low pressure refrigerant of discharging from vaporizer in pin receiving cavity, wherein, the clutch shaft bearing that pin receiving cavity is penetratingly opened in compressor is connected with receiving cavity.
Further, the control of the mode of operation of the second cylinder also comprises step S03: after the second cylinder is in normal mode of operation, and cut off the pipeline connected between compressor and receiving cavity, the second cylinder keeps mode of operation.
Further, step S01 comprises: switch pipeline connection between pipe by opening the first valve to make connection compressor and pressure, switches pipeline between pipe with vaporizer by closing the second valve to cut off Bonding pressure.
Further, controlling method also comprises the control of the unloading mode to the second cylinder, and unloading mode comprises the following steps:
Step S11: cut off the pipeline connected between compressor and receiving cavity, is communicated with the pipeline connected between receiving cavity and vaporizer;
Step S12: the low pressure refrigerant of discharging from vaporizer is passed in pin receiving cavity and receiving cavity to make pin by slide plate locking, now, logical oily passage plugging enters in receiving cavity to prevent lubricant oil by slide plate, wherein, pin receiving cavity be penetratingly opened in compressor clutch shaft bearing on and be connected with receiving cavity.
Further, comprising in step s 11: switch pipeline connection between pipe by opening the first valve to make connection compressor and pressure, switching pipeline between pipe with vaporizer by closing the second valve to cut off Bonding pressure.
Apply technological scheme of the present invention, provide a kind of compressor, this compressor comprises the first cylinder, the second cylinder and logical oily passage.Second cylinder and the first cylinders lead to, and the second cylinder has chute, and chute has receiving cavity.Wherein, the slide plate of compressor is slidably disposed in receiving cavity.Logical oily passage is connected with receiving cavity, and slide plate has the second state that oily passage is led in first state of opening logical oily passage and shutoff, and when slide plate is positioned at the first state, lubricant oil enters in receiving cavity by leading to oily passage.The logical oily passage be connected with receiving cavity is set, lubricant oil can be entered in receiving cavity, effectively raise the lubrication effect of slide plate and receiving cavity inwall.Thus improve the service behaviour of compressor, extend the working life of compressor.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows structural representation when compressor pump in prior art is in unloading mode;
Fig. 2 shows structural representation when compressor pump in prior art is in mode of operation;
Fig. 3 shows structural representation when compressor pump according to the present invention is in mode of operation;
Fig. 4 shows structural representation when compressor pump according to the present invention is in unloading mode; And
Fig. 5 shows the structural representation according to compressor refrigeration system of the present invention.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10 ', bearing; 11 ', clutch shaft bearing; 12 ', second bearing; 121 ', pin hole; 13 ', bent axle; 20 ', master cylinder; 21 ', second slide plate; 22 ', second roller; 30 ', transfiguration cylinder; 31 ', airtight receiving cavity; 32 ', first roller; 33 ', first slide plate; 34 ', closed cavity; 35 ', pressure switches pipe; 50 ', dividing plate; 60 ', pin; 70 ', cover plate; 71 ', low-pressure channel;
10, bearing; 11, clutch shaft bearing; 12, upper bearing (metal); 121, pin receiving cavity; 13, bent axle; 20, the first cylinder; 21, master cylinder slide plate; 22, master cylinder roller; 30, the second cylinder; 31, receiving cavity; 32, roller; 33, slide plate; 34, closed cavity; 35, pressure switches pipe; 40, logical oily passage; 41, filler opening; 42, oil outlet; 50, cylinder dividing plate; 60, pin; 70, cover plate; 71, low-pressure channel; 81, condenser; 82, flow controller; 83, vaporizer; 84, liquid trap; 91, the first valve; 92, the second valve; 100, compressor.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 3 and Figure 4, according to one embodiment of present invention, provide a kind of compressor, this compressor comprises the first cylinder 20, second cylinder 30 and logical oily passage 40.Second cylinder 30 is connected with the first cylinder 20, and the second cylinder 30 has chute, and chute has receiving cavity 31.Wherein, the slide plate 33 of compressor is slidably disposed in receiving cavity 31.Logical oily passage 40 is connected with receiving cavity 31, and slide plate 33 has the second state that oily passage 40 is led in first state of opening logical oily passage 40 and shutoff, and when slide plate 33 is positioned at the first state, lubricant oil enters in receiving cavity 31 by leading to oily passage 40.
In the present embodiment, the logical oily passage 40 be connected is set, lubricant oil can be entered in receiving cavity 31 with receiving cavity 31, effectively raise the lubrication effect of slide plate 33 and receiving cavity 31 inwall.Thus improve the service behaviour of compressor, extend the working life of compressor.In the present embodiment, owing to being provided with logical oily passage 40, making in receiving cavity 31, there is sufficient refrigeration lubrication oil, thus ensure that the compression performance of whole compressor, the sealing simultaneously also improving compressor inside is cold, effectively prevents the leakage problem of refrigeration agent.
Wherein, closed cavity 34 is formed between one end of the roller 32 away from the second cylinder 30 of slide plate 33 and the inwall of chute.As shown in Figure 3 and Figure 4, logical oily passage 40 has filler opening 41 and oil outlet 42, and wherein, when slide plate 33 is positioned at the first state, oil outlet 41 is connected with closed cavity 34.Here filler opening 41 and oil outlet 42 are relative to closed cavity 34, when compressor operating, refrigeration oil in the oil sump of compressor can enter logical oily passage 40 by the oil outlet 42 of logical oily passage 40, then flows out to closed cavity 34 from the filler opening 41 of logical oily passage 40.
The sidewall of closed cavity 34 is provided be connected with closed cavity 34 switch pipe 35 for the pressure passing into refrigeration agent, pressure switches pipe 35 in order to pass into pressurized gas or low-pressure gas, thus realizes the transfiguration cylinder transfiguration of compressor.
Further, compressor also comprises cylinder dividing plate 50.Cylinder dividing plate 50 is arranged between the first cylinder 20 and the second cylinder 30, and logical oily passage 40 is opened in cylinder dividing plate 50.Wherein, the first cylinder 20 is master cylinder, and the second cylinder 30 is transfiguration cylinder.Logical oily passage 40 is opened in cylinder dividing plate 50, ensure that logical oily passage 40 is not revealed in logical oily process, add the reliability of the logical oil of logical oily passage 40.
As shown in Figure 3 and Figure 4, master cylinder and transfiguration cylinder and other parts are set together to form compressor pump by bearing 10, and its middle (center) bearing 10 comprises upper bearing (metal) 12 and clutch shaft bearing 11, and master cylinder has master cylinder slide plate 21 and master cylinder roller 22.Wherein, bent axle 13 is also provided with between master cylinder and transfiguration cylinder.
Clutch shaft bearing 11 is arranged at the below of the second cylinder 30 and is connected with the second cylinder 30.The stability further increasing the pump housing is set like this.
Compressor in the present embodiment also comprises pin receiving cavity 121 and pin 60.Pin receiving cavity 121 is penetratingly opened on clutch shaft bearing 11, and pin receiving cavity 121 has the first opening and the second opening, and the first opening is connected with receiving cavity 31, and the second opening is connected with the low-pressure channel 71 of compressor.Pin 60 is arranged in pin receiving cavity 121 movably, and pin 60 has the lockup state of locking slide plate 33 and departs from the released state of slide plate 33.Be arranged so that compressor more easily realizes the mode of operation of transfiguration like this.
Also be provided with cover plate 70 in the below of clutch shaft bearing 11, cover plate 70 be provided with the low-pressure channel 71 be connected with pin receiving cavity 121.Such setting can pass into low pressure refrigerant easily to improve the performance of compressor.
In a second embodiment of the present invention, cylinder dividing plate 50 is provided with between the first cylinder 20 and the second cylinder 30.Cylinder dividing plate 50 is connected with the second cylinder 30, and logical oily passage 40 is arranged on the second cylinder 30 and cylinder dividing plate 50.Offer logical oily passage 40 at the second cylinder 30 with the joint of cylinder dividing plate 50, the difficulty of processing that can effectively reduce logical oily passage 40 is set like this, thus improves the manufacturing efficiency of compressor.Certainly, logical oily passage 40 also can only be arranged on the second cylinder 30, and logical oily passage 40 is connected with the closed cavity 34 of the second cylinder 30, then for providing lubricant oil when the second cylinder 30 works.In the present embodiment, the second cylinder 30 is transfiguration cylinder.
Logical oily passage 40 in the present embodiment comprises following several set-up mode:
1, logical oily passage 40 is only arranged in any one in the second cylinder 30, cylinder dividing plate 50, clutch shaft bearing 11 three.
2, logical oily passage 40 is arranged on the second cylinder 30, cylinder dividing plate 50 and clutch shaft bearing 11.
3, on any two that logical oily passage 40 is arranged in the second cylinder 30, cylinder dividing plate 50, clutch shaft bearing 11 three.
The length just determining logical oily passage 40 of above-mentioned different set-up mode, preferred set-up mode for logical oily passage 40 is arranged on cylinder dividing plate 50, effective like this difficulty when shortening length being set and reducing the logical oily passage 40 of processing of logical oily passage 40.
Closed cavity 34 passes into high-pressure refrigerant, now, and in pin receiving cavity 121, still keep passing into low pressure refrigerant, high-pressure refrigerant and low pressure refrigerant act on head and the afterbody of pin 60 respectively, pin 60 overcomes the spring force of pin afterbody, and the opposite direction of the downward slide plate 33 of pin 60 slides and departs from slide plate 33.Meanwhile, contact with the roller 32 of transfiguration cylinder under the effect of the high-pressure refrigerant of slide plate 33 in closed cavity 34, realize the mode of operation of transfiguration cylinder.When transfiguration cylinder operation, the refrigeration oil in compressor oil sump is by leading to the filler opening 41 of oily passage 40 to fuel feeding in closed cavity 34.Namely now, closed cavity 34 becomes open space, high pressure refrigerator oil in the casing of compressor enters closed cavity 34, both the oil film seal effect between slide plate 33 and the chute of cylinder, between pin 60 and pin receiving cavity 121 had been enhanced, which in turn improve lubrication effect when slide plate 33 moves, improve the performance of variable volume compressor and the reliability of compressor.
Above-mentioned slide plate 33 seals up above-mentioned filler opening 41 when moving to distance cylinder axis distalmost end, make the pressure in closed cavity 34 and the pressure balance in low-pressure channel 71, pin 60 upward sliding under the action of the spring, the head of pin 60 snaps in the groove of slide plate 33 correspondence, slide plate 33 and roller 32 depart from, and slide plate 33 is locked, transfiguration cylinder dallies, and realizes the unloading mode of transfiguration cylinder.When closed cavity 34 passes into high pressure, pin 60 unlocks, and slide plate 33 and roller 32 keep in touch, and transfiguration cylinder is mode of operation.
Under transfiguration cylinder working pattern, lubricant oil enters in closed cavity 34, and closed cavity 34 is now in evolution state, makes the side of the side of slide plate 33 and pin 60 realize oil film seal, decreases the leakage of refrigeration agent and lubricant oil.Improve the lubrication state of the side of slide plate 33, alleviate the fretting wear of slide plate 33, the performance effectively improving compressor closes reliability.
Because the side of slide plate 33 seals filler opening 41 completely, prevent the high pressure refrigeration oil in compressor case and refrigeration agent to leak to low-pressure channel 71, ensure that the efficiency of compressor under the unloading mode of transfiguration cylinder.
Compressor in above-described embodiment can also be used in compressor refrigeration system, namely according to the 3rd embodiment of the present invention, the invention provides a kind of compressor refrigeration system.This compressor refrigeration system comprises compressor 100.Compressor 100 is the compressor in above-described embodiment.Have the compressor refrigeration system of this compressor 100, the property that further can improve refrigeration system is cold.
Wherein, compressor refrigeration system comprises condenser 81, flow controller 82, vaporizer 83 and liquid trap 84.The entry end of condenser 81 switches pipe 35 with the relief opening of compressor 100 with the pressure of compressor 100 respectively and is connected.The entry end of flow controller 82 is connected with the outlet end of condenser 81.The entry end of vaporizer 83 is connected with the outlet end of flow controller 82, and the outlet end of vaporizer 83 switches pipe 35 respectively and is connected with the low-pressure channel 71 of compressor 100 with pressure.One end of liquid trap 84 is connected with compressor 100, and the other end of liquid trap 84 is connected with the outlet end of vaporizer 83.Arrange this refrigeration system to be effectively embodied as compressor 100 high-quality refrigeration agent is provided, thus improve compression performance and the practicability of compressor.
Compressor refrigeration system there is main road circulation loop, main road circulation loop controlling method comprises the following steps:
S01: passed in condenser 81 by the high-pressure refrigerant of discharging from compressor 100 and carry out heat exchange, high-pressure refrigerant becomes highly pressurised liquid;
S02: highly pressurised liquid is passed into successively in flow controller 82 and vaporizer 83 and lowly press through cold or two phase refrigerant to be formed;
S03: low pressure refrigerant passed into liquid trap 84 and enter in compressor 100, low pressure refrigerant forms high-pressure refrigerant after compressor 100 compresses.
In the present embodiment, compressor refrigeration system also comprises the first valve 91 and the second valve 92.First valve 91 is arranged at pressure and switches on the pipeline that is connected with condenser 81 of pipe 35.Second valve 92 has import and outlet, the import of the second valve 92 be connected vaporizer 83 and be connected with the first pipeline of liquid trap 84, outlet and the Bonding pressure of the second valve 92 switch pipe 35 and are connected with the second pipe of the first valve 91.By controlling the opening and closing of the first valve 91 and the second valve 92, can control compressor 100 effectively to the demand of various refrigeration agent.Further increasing performance and the compression efficiency of compressor.
According to a fourth embodiment of the invention, provide a kind of controlling method of compressor refrigeration system, for controlling compressor refrigeration system, compressor refrigeration system is the compressor refrigeration system in above-described embodiment, controlling method comprises the control of the mode of operation of the second cylinder 30 to compressor 100, and the control of mode of operation comprises the following steps:
Step S01: cut off the pipeline connected between receiving cavity 31 and vaporizer 83, and be communicated with the pipeline between compressor 100 and receiving cavity 31;
Step S02: form closed cavity 34 between one end of the roller 32 away from the second cylinder 30 of slide plate 33 and the inwall of chute, the high-pressure refrigerant of discharging from compressor 100 is passed in closed cavity 34, reciprocatingly slide between a first state and a second state to make slide plate 33, when slide plate 33 is positioned at the first state, lubricant oil is entered in closed cavity 34 by logical oily passage 40.
Wherein, step S01 comprises and switches pipeline connection between pipe 35 by opening the first valve 91 to make connection compressor 100 and pressure, switches pipeline between pipe 35 and vaporizer 83 by closing the second valve 92 to cut off Bonding pressure.Step S02 comprises and passes in pin receiving cavity 121 by the low pressure refrigerant of discharging from vaporizer 83, wherein, the clutch shaft bearing 11 that pin receiving cavity 121 is penetratingly opened in compressor 100 is connected with receiving cavity 31.
Above-mentioned said first state and the second state can be states residing when slide plate 33 moves to nearest apart from transfiguration cylinder axis and when slide plate 33 moves to apart from transfiguration cylinder axis farthest.
Further, after the second cylinder 30 is in normal mode of operation, cut off the pipeline connected between compressor 100 and receiving cavity 31, the second cylinder 30 keeps mode of operation.
After transfiguration cylinder operation mode handover success, get final product solenoid valve---the first valve 91 that closing control leads to pressurized gas, compressor still can keep transfiguration cylinder to be in mode of operation, therefore saves the power consumption of solenoid valve, improves the efficiency of refrigerant-cycle systems further.
In the present embodiment, also comprise the control that controlling method also comprises the unloading mode to the second cylinder 30, unloading mode comprises the following steps:
Step S11: cut off the pipeline connected between compressor 100 and receiving cavity 31, is communicated with the pipeline connected between receiving cavity 31 and vaporizer 83;
Step S12: the low pressure refrigerant of discharging from vaporizer 83 is passed in pin receiving cavity 121 and receiving cavity 31 to make pin 60 by slide plate 33 locking, now, the shutoff of logical oily passage 40 enters in receiving cavity 31 to prevent lubricant oil by slide plate 33, wherein, pin receiving cavity 121 be penetratingly opened in compressor 100 clutch shaft bearing 11 on and be connected with receiving cavity 31.
Wherein, comprising in step s 11: switch pipeline connection between pipe 35 by opening the first valve 91 to make connection compressor 100 and pressure, switching pipeline between pipe 35 and vaporizer 83 by closing the second valve 92 to cut off Bonding pressure.
Above-mentioned controlling method show only single control mode, and in fact, in the process of compressor operating, the second cylinder 30 i.e. mode of operation of transfiguration cylinder and the control of unloading mode, can realize conversion mutually.Namely the unlatching of the first valve 91 and the second valve 92 or closed with the unloading mode switching to transfiguration cylinder can be controlled when the transfiguration cylinder of compressor is in mode of operation.Specific as follows:
As shown in Figure 5, low-pressure channel 71 is connected with the low-pressure channel of vaporizer 83, and closed cavity 34 and pressure switch pipe 35 and is connected.When the first valve 91 is closed, the second valve 92 is opened, then compressor 100 is transfiguration cylinder unloading mode, and this kind of mode is applicable to the working environment freezed or heating capacity requirement is low.
When the first valve 91 is opened, the second valve 92 is closed, then compressor 100 switches to the mode of operation of transfiguration cylinder, and this kind of mode is applicable to the working environment freezed or heating capacity requirement is large.When transfiguration cylinder normally works after switching completes, closed cavity 34 can stop accessing high-pressure refrigerant, namely closes the first valve 91, still can ensure that transfiguration cylinder maintains normal mode of operation.Therefore, the refrigeration system applicability applying transfiguration cylinder compressor of the present invention is wider, compression efficiency is higher, the life-span is longer.
It should be noted that, " the first state " in the application refers to location status when oily passage 40 is led in the incomplete shutoff in side that slide plate 33 moves to slide plate 33, certainly, when slide plate 33 is in the first state, the side of slide plate 33, away from the filler opening 41 of logical oily passage 40, makes the filler opening 41 of logical oily passage 40 be in complete open state.
" the second state " refers to the opening that slide plate 33 moves to logical oily passage 40, and now the filler opening 41 of oily passage 40 blocks by the side of slide plate 33 completely completely.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
Apply technological scheme of the present invention, provide a kind of compressor, this compressor comprises the first cylinder, the second cylinder and logical oily passage.Second cylinder and the first cylinders lead to, and the second cylinder has chute, and chute has receiving cavity.Wherein, the slide plate of compressor is slidably disposed in receiving cavity.Logical oily passage is connected with receiving cavity, and slide plate has the second state that oily passage is led in first state of opening logical oily passage and shutoff, and when slide plate is positioned at the first state, lubricant oil enters in receiving cavity by leading to oily passage.The logical oily passage be connected with receiving cavity is set, lubricant oil can be entered in receiving cavity, effectively raise the lubrication effect of slide plate and receiving cavity inwall.Thus improve the service behaviour of compressor, extend the working life of compressor.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. a compressor, is characterized in that, comprising:
First cylinder (20);
Second cylinder (30), is connected with described first cylinder (20), and described second cylinder (30) has chute, and described chute has receiving cavity (31);
Slide plate (33), is slidably disposed in described receiving cavity (31);
Logical oily passage (40), is connected with described receiving cavity (31);
Wherein, described slide plate (33) have open described logical oily passage (40) the first state and shutoff described in the second state of logical oily passage (40), when described slide plate (33) is positioned at described first state, lubricant oil is entered in described receiving cavity (31) by described logical oily passage (40).
2. compressor according to claim 1, it is characterized in that, closed cavity (34) is formed between one end of the roller (32) away from described second cylinder (30) of described slide plate (33) and the inwall of described chute, described logical oily passage (40) has filler opening (41) and oil outlet (42), wherein, when described slide plate (33) is positioned at described first state, described oil outlet (41) is connected with described closed cavity (34).
3. compressor according to claim 2, is characterized in that, the sidewall of described closed cavity (34) is provided with switching for the pressure passing into refrigeration agent of being connected with described closed cavity (34) and manages (35).
4. compressor according to claim 1, is characterized in that, described compressor also comprises:
Cylinder dividing plate (50), is arranged between described first cylinder (20) and described second cylinder (30), and described logical oily passage (40) is opened in described cylinder dividing plate (50);
Wherein, described first cylinder (20) is master cylinder, and described second cylinder (30) is transfiguration cylinder.
5. compressor according to claim 1, is characterized in that, described compressor also comprises:
Clutch shaft bearing (11), is arranged at the below of described second cylinder (30) and is connected with described second cylinder (30).
6. compressor according to claim 5, is characterized in that, described compressor also comprises:
Pin receiving cavity (121), penetratingly be opened on described clutch shaft bearing (11), described pin receiving cavity (121) has the first opening and the second opening, when described slide plate (33) is positioned at described first state, described first opening is connected with described receiving cavity (31), and described second opening is connected with the low-pressure channel (71) that described compressor is arranged;
Pin (60), be arranged in described pin receiving cavity (121) movably, described pin (60) has the lockup state of slide plate described in locking (33) and departs from the released state of described slide plate (33).
7. compressor according to claim 6, it is characterized in that, described compressor also comprises cover plate (70), described cover plate (70) is arranged at the below of described clutch shaft bearing (11), and described cover plate (70) is provided with the described low-pressure channel (71) be connected with described pin receiving cavity (121).
8. compressor according to claim 5, is characterized in that, described compressor also comprises:
Cylinder dividing plate (50), be arranged between described first cylinder (20) and described second cylinder (30), described cylinder dividing plate (50) is connected with described second cylinder (30), described logical oily passage (40) is arranged on described second cylinder (30), described cylinder dividing plate (50) and described clutch shaft bearing (11), or
Described logical oily passage (40) is arranged on any one or any two in described second cylinder (30), described cylinder dividing plate (50) and described clutch shaft bearing (11).
9. compressor according to claim 2, it is characterized in that, one end of described logical oily passage (40) is connected with the oil sump of described compressor, and the other end of described logical oily passage (40) is connected with described closed cavity (34).
10. a compressor refrigeration system, comprises compressor (100), it is characterized in that, described compressor (100) is the compressor described in any one of claim 1 to 9.
11. compressor refrigeration systems according to claim 10, is characterized in that, described compressor refrigeration system comprises:
Condenser (81), the entry end of described condenser (81) switches with the relief opening of described compressor (100) and the pressure of described compressor (100) respectively manages (35) and is connected;
Flow controller (82), the entry end of described flow controller (82) is connected with the outlet end of described condenser (81);
Vaporizer (83), the entry end of described vaporizer (83) is connected with the outlet end of described flow controller (82), and the outlet end of described vaporizer (83) switches with described pressure respectively manages (35) and be connected with the low-pressure channel (71) of described compressor (100);
Liquid trap (84), one end of described liquid trap (84) is connected with described compressor (100), and the other end of described liquid trap (84) is connected with the outlet end of described vaporizer (83).
12. compressor refrigeration systems according to claim 11, is characterized in that, described compressor refrigeration system also comprises:
First valve (91), described first valve (91) is arranged at described pressure and switches on pipe (35) pipeline that is connected with described condenser (81);
Second valve (92), there is import and outlet, the import of described second valve (92) be connected first pipeline of described vaporizer (83) with described liquid trap (84) and be connected, the outlet of described second valve (92) be connected described pressure and switch and manage (35) and be connected with the second pipe of described first valve (91).
The controlling method of 13. 1 kinds of compressor refrigeration systems, for controlling compressor refrigeration system, it is characterized in that, described compressor refrigeration system is the compressor refrigeration system described in any one of claim 10 to 12, described controlling method comprises the control of the mode of operation of described second cylinder (30) to described compressor (100), and the control of described mode of operation comprises the following steps:
Step S01: cut off the pipeline connected between described receiving cavity (31) and vaporizer (83), and be communicated with the pipeline between described compressor (100) and described receiving cavity (31);
Step S02: form closed cavity (34) between one end of the roller (32) away from described second cylinder (30) of described slide plate (33) and the inwall of described chute, the high-pressure refrigerant of discharging from described compressor (100) is passed in described closed cavity (34), reciprocatingly slide between described first state and described second state to make described slide plate (33), when described slide plate (33) is positioned at described first state, described lubricant oil is entered in described closed cavity (34) by described logical oily passage (40).
The controlling method of 14. compressor refrigeration systems according to claim 13, is characterized in that, described step S02 comprises:
The low pressure refrigerant of discharging from described vaporizer (83) is passed in pin receiving cavity (121), wherein, described pin receiving cavity (121) to be penetratingly opened in the clutch shaft bearing (11) of described compressor (100) upper and be connected with described receiving cavity (31).
The controlling method of 15. compressor refrigeration systems according to claim 13, is characterized in that, the control of the described mode of operation of described second cylinder (30) also comprises:
Step S03: after described second cylinder (30) is in normal mode of operation, cut off the pipeline connected between described compressor (100) and described receiving cavity (31), described second cylinder (30) keeps described mode of operation.
The controlling method of 16. compressor refrigeration systems according to claim 13, it is characterized in that, described step S01 comprises: switch the pipeline connection of managing between (35) by opening the first valve (91) to make the described compressor of connection (100) and pressure, switches the pipeline of managing between (35) and vaporizer (83) by closing the second valve (92) to cut off Bonding pressure.
The controlling method of 17. compressor refrigeration systems according to claim 13, is characterized in that, described controlling method also comprises the control of the unloading mode to described second cylinder (30), and described unloading mode comprises the following steps:
Step S11: cut off the pipeline connected between described compressor (100) and described receiving cavity (31), is communicated with the pipeline connected between described receiving cavity (31) and vaporizer (83);
Step S12: the low pressure refrigerant of discharging from described vaporizer (83) is passed in pin receiving cavity (121) and described receiving cavity (31) to make pin (60) by described slide plate (33) locking, now, the shutoff of described logical oily passage (40) enters in described receiving cavity (31) to prevent described lubricant oil by described slide plate (33), wherein, described pin receiving cavity (121) to be penetratingly opened in the clutch shaft bearing (11) of described compressor (100) upper and be connected with described receiving cavity (31).
The controlling method of 18. compressor refrigeration systems according to claim 17, it is characterized in that, comprising at described step S11: switch the pipeline connection of managing between (35) by opening the first valve (91) to make the described compressor of connection (100) and pressure, switching the pipeline of managing between (35) and vaporizer (83) by closing the second valve (92) to cut off Bonding pressure.
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Effective date of registration: 20181127 Address after: No. six, Qianshan Jinji West Road, Zhuhai, Guangdong Province Applicant after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Applicant after: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. Address before: 519070 9 Building (Science and technology building) 789 Jinji Road, Qianshan, Zhuhai, Guangdong Applicant before: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. |