CN108716793A - A kind of oil separation device and its heat pump system - Google Patents
A kind of oil separation device and its heat pump system Download PDFInfo
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- CN108716793A CN108716793A CN201810682858.9A CN201810682858A CN108716793A CN 108716793 A CN108716793 A CN 108716793A CN 201810682858 A CN201810682858 A CN 201810682858A CN 108716793 A CN108716793 A CN 108716793A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a kind of oil separation devices, the oil separation device is at least provided with three interfaces, the oil separation device includes the first oil eliminator, oil filter screen, First Heat Exchanger and first throttle device, First Heat Exchanger and oil filter screen are separately installed with inside first heat exchanging chamber of the first oil eliminator from top to bottom, one end of first heat exchanging chamber is communicated with first interface, it is communicated with second interface below oil filter screen, first heat exchanging chamber bottom of the first oil eliminator is equipped with oil return pipe, one end interface of the oil return pipe is arranged in the first heat exchanging chamber bottom, the input terminal and output end of first throttle device are respectively communicated with oil return pipe and First Heat Exchanger, the outside that the output end of First Heat Exchanger extends to the first oil eliminator is communicated with third interface.Oil separation device disclosed by the invention makes lubricating oil pass through oil return line to be transported to compressor, oil separation device reasonable design.
Description
Technical field
The present invention relates to heat-pump apparatus, more particularly to a kind of heat pump system with oil separation device.
Background technology
It is new that heat pump is that the device and the whole world of a kind of heat energy transfer by low level heat energy to high-order heat source receive much attention
Energy technology.Oil separation device is installed, effect is the lubricating oil in the high steam that refrigeration compressor is discharged in heat pump system
It is detached, to ensure that equipment safety is efficiently run.According to reducing air velocity and changing point oily principle of airflow direction, make
Elaioleucite in high steam is detached under the effect of gravity.But in the prior art, existing oil separation device is mounted on compression
The output high-pressure side of machine, in addition oil separation device oil return effect is not as ideal, it is necessary to be made to oil separation device and its heat pump system
Technological improvement.
Invention content
The technical problem to be solved in the present invention is to provide a kind of oil return systems well, improves heat pump system operating condition, height
The heat pump system with oil separation device of efficiency.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of oil separation device, the oil separation device at least provided with three interfaces, the oil separation device include the first oil eliminator,
Oil filter screen, First Heat Exchanger and first throttle device are pacified respectively from top to bottom inside the first heat exchanging chamber of the first oil eliminator
Equipped with First Heat Exchanger and oil filter screen, one end of the first heat exchanging chamber is communicated with first interface, connects below oil filter screen
It is connected with second interface, the first heat exchanging chamber bottom of the first oil eliminator is equipped with oil return pipe, and an end interface of the oil return pipe is set
It sets in the first heat exchanging chamber bottom, the input terminal and output end of first throttle device are respectively communicated with oil return pipe and First Heat Exchanger, and first
The outside that the output end of heat exchanger extends to the first oil eliminator is communicated with third interface.
Further, multi-heat exchanger is installed below first oil eliminator, multi-heat exchanger is also at least arranged
There are five interface, the 4th heat exchanger and the 5th heat exchanger are installed inside the second heat exchanging chamber of the multi-heat exchanger, the 4th changes
One end of hot device is connected to second interface, the other end extends to the outside of multi-heat exchanger and is communicated with the 6th interface, the 5th heat exchange
The outside that one end of device extends to multi-heat exchanger with the 4th orifice, the other end is communicated with the 5th interface, the second heat exchanging chamber
Both sides be respectively communicated with return air inlet and return air outlet.
Further, first oil eliminator and the multi-heat exchanger are monolithic construction.
Further, the first throttle device is capillary.
The invention also discloses a kind of heat pump systems with oil separation device, including compressor, four-way valve, the second heat exchange
Device, third heat exchanger and oil separation device；
For the oil separation device at least provided with three interfaces, the oil separation device includes the first oil eliminator, oil filter screen, the
One heat exchanger and first throttle device are separately installed with First Heat Exchanger inside the first heat exchanging chamber of the first oil eliminator from top to bottom
And oil filter screen, one end of the first heat exchanging chamber are communicated with first interface, second interface are communicated with below oil filter screen, the
First heat exchanging chamber bottom of one oil eliminator is equipped with oil return pipe, and an end interface of the oil return pipe is arranged at the first heat exchanging chamber bottom
Portion, the input terminal and output end of first throttle device are respectively communicated with oil return pipe and First Heat Exchanger, and the output end of First Heat Exchanger prolongs
The outside for reaching the first oil eliminator is communicated with third interface；
Four interfaces of the four-way valve are respectively communicated with the high-pressure side of compressor, the low-pressure side of compressor, the second heat exchanger
And third heat exchanger, the other end of second heat exchanger are connected to the input terminal of the first check valve, the output end of the first check valve
It is connected to first interface；The other end of the third heat exchanger is connected to the input terminal of the second check valve, the output end of the second check valve
It is connected to first interface；One end of second interface connection second choke, the other end of second choke are divided into two-way and are respectively communicated with
The input terminal of third check valve and the 4th check valve；The output end of third check valve and the 4th check valve be connected to the first check valve and
The input terminal of second check valve；Third interface is connected to the low-pressure side of compressor.
The invention also discloses one kind having the multiple heat exchange enthalpy increasing heat pump system of oil, including compressor, four-way valve, second
Heat exchanger, third heat exchanger and oil separation device；
For the oil separation device at least provided with three interfaces, the oil separation device includes the first oil eliminator, oil filter screen, the
One heat exchanger and first throttle device are separately installed with First Heat Exchanger inside the first heat exchanging chamber of the first oil eliminator from top to bottom
And oil filter screen, one end of the first heat exchanging chamber are communicated with first interface, connect below the first heat exchanging chamber of lower part of oil filter screen
It is connected with second interface, the first heat exchanging chamber bottom of the first oil eliminator is equipped with oil return pipe, and an end interface of the oil return pipe is set
The top in the first heat exchanging chamber bottom is set, the input terminal and output end of first throttle device are respectively communicated with oil return pipe and First Heat Exchanger
Another end interface of the oil return pipe is connected to First Heat Exchanger, and the output end of First Heat Exchanger extends to the first oil eliminator
Outside is communicated with third interface, and first throttle device is communicated between the oil return pipe and the First Heat Exchanger；
Multi-heat exchanger is installed, multi-heat exchanger also connects at least provided with five below first oil eliminator
Mouthful, the 4th heat exchanger and the 5th heat exchanger be installed inside the second heat exchanging chamber of the multi-heat exchanger, the one of the 4th heat exchanger
End is connected to second interface, the other end extends to the outside of multi-heat exchanger and is communicated with the 6th interface, one end of the 5th heat exchanger
The outside that multi-heat exchanger is extended to the 4th orifice, the other end is communicated with the 5th interface, the both sides point of the second heat exchanging chamber
It is not communicated with return air inlet and return air outlet；
Four interfaces of the four-way valve are respectively communicated with high-pressure side, return air inlet, the second heat exchanger and the third of compressor
Heat exchanger, the other end of second heat exchanger are connected to the input terminal of the first check valve, the output end connection of the first check valve the
One interface；The other end of the third heat exchanger is connected to the input terminal of the second check valve, the output end connection of the second check valve the
One interface；One end of second interface connection second choke, the other end of second choke are divided into two-way and are respectively communicated with third list
To valve and the input terminal of the 4th check valve；The output end of third check valve and the 4th check valve is connected to the first check valve and the second list
To the input terminal of valve；Third interface is connected to the low-pressure side of compressor.
Further, the 4th interface is connected to by solenoid valve with the high-pressure side of compressor, the 6th interface and
The input terminal of two flow controllers is connected to, and the 5th interface is connected to by third flow controller with first interface.
Further, the 4th flow controller and unloading valve have also been sequentially communicated between the return air outlet and second choke.
Using above-mentioned technical proposal, since three interfaces on the oil separation device are respectively connected to use in heat pump system, the
One interface and second interface cooperation are installed as main refrigerant conveying loop, and the on oil filter screen, oil return pipe and oil return pipe
Two interfaces are oil return line, and the refrigerant of major loop is sent to by first interface inside the first heat exchanging chamber, due in the first heat exchanging chamber
The heat exchange of First Heat Exchanger acts on, and the refrigerant cooling in the first heat exchanging chamber is conducive to the separation of lubricating oil and refrigerant, makes lubricating oil
It is transported to compressor, oil separation device reasonable design by oil return line.In addition, oil separation device apply it is reasonable for structure in heat pump system,
The oil circuit recycling lubricating oil of First Heat Exchanger heat pump system in oil return apparatus is more abundant, makes heat pump system operation more
Add stabilization.
Description of the drawings
Fig. 1 is the structural schematic diagram of the oil separation device of the present invention；
Fig. 2 is the structural schematic diagram of the heat pump system with oil separation device of the present invention；
Fig. 3 is that the oil separation device of the present invention is equipped with the improved structure schematic diagram of multi-heat exchanger；
Fig. 4 is the present invention with the multiple heat exchange enthalpy increasing heat pump system structure diagram of oil.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.In addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Figure 1, a kind of oil separation device disclosed by the invention, the oil separation device is at least provided with three interfaces A, B, C, oil
Separating device includes the first oil eliminator 18, oil filter screen 31, First Heat Exchanger 21 and first throttle device 19, the first oil eliminator
It is separately installed with First Heat Exchanger 21 and oil filter screen 31 inside 18 the first heat exchanging chamber from top to bottom, the one of the first heat exchanging chamber
End is communicated with first interface A, and the lower section of oil filter screen 31 is communicated with second interface B, the first heat exchange of the first oil eliminator 18
Bottom of chamber portion is equipped with oil return pipe 6, and an end interface of oil return pipe 6 is arranged in the first heat exchanging chamber bottom, the input of first throttle device 19
End and output end are respectively communicated with oil return pipe 6 and First Heat Exchanger 21, and the output end of First Heat Exchanger 21 extends to the first oil separation
The outside of device 18 is communicated with third interface C.The major loop of refrigerant, which is transported to by first interface A inside the first heat exchanging chamber, passes through oil
Filter screen 31 is divided to filter, lubricating oil is pooled to the bottom of the first heat exchanging chamber, and the pipeline where second interface B extend into the first heat exchange
In chamber, ports of the second interface B in the first heat exchanging chamber opens up between the bottom of oil filter screen 31 and the first heat exchanging chamber
Gap 2/3rds at, ports of the second interface B in the first heat exchanging chamber be higher than lubricating oil liquid level.
Since three interfaces on the oil separation device are respectively connected to use in heat pump system, first interface A and second interface
B cooperations are installed as main refrigerant conveying loop, and the second interface B on oil filter screen 23, oil return pipe 6 and oil return pipe 6 is back
The refrigerant of oil circuit, major loop is sent to by first interface A inside the first heat exchanging chamber, since the bottom high-pressure in the first heat exchanging chamber is cold
Matchmaker and oil mixture are mutually exchanged by the lower First Heat Exchanger 21 of the effect of first throttle device 19 with the refrigerant in the first heat exchanging chamber
Heat makes it further condense cooling, is conducive to the separation of lubricating oil and refrigerant, ensures compressor oil return and improves evaporator efficiency,
Oil separation device reasonable design.
In addition, on the basis of above-mentioned oil separation device, which is improved further, as shown in figure 3, first
The lower section of oil eliminator 18 is equipped with multi-heat exchanger 30, multi-heat exchanger 30 also at least provided with five interfaces D, E, F, G, H,
4th heat exchanger 23 and the 5th heat exchanger 24 be installed inside second heat exchanging chamber of multi-heat exchanger 30, the one of the 4th heat exchanger 23
End is connected to second interface B, the other end extends to the outside of multi-heat exchanger 30 and is communicated with the 6th interface F, the 5th heat exchanger 24
One end be connected to the 4th interface D, the other end extends to the outside of multi-heat exchanger 30 and is communicated with the 5th interface E, the second heat exchange
The both sides of chamber have been respectively communicated with return air inlet H and return air outlet G.Above-mentioned improvement system further changes high temperature and pressure refrigerant evaporation
Heat, evaporation effect is more preferable after making throttling, while with return-air low temperature refrigerant heat exchange, improving refrigerant suction temperature, increasing enthalpy again
Value.In order to keep heat transfer effect between the first oil eliminator 18 and multi-heat exchanger 30 more direct, the first oil eliminator 18 and more
Weight heat exchanger 30 is monolithic construction, i.e., connection isolation, which uses, between the first oil eliminator 18 and multi-heat exchanger 30 only has one piece
Shell, conduction heat is more direct, and heat exchange is more efficient.
In addition, in order to make First Heat Exchanger 21 effectively cooling refrigerant and oil mixture, oil return in the first heat exchanging chamber
First throttle device 19 is communicated between pipe 6 and First Heat Exchanger 21, in order to not influence the operating mode of heat pump system major loop, first segment
Flow capillary of the device 19 using pipe with small pipe diameter.
As shown in Fig. 2, a kind of heat pump system with oil separation device disclosed by the invention, including compressor 1, four-way valve 2,
Second heat exchanger 3, third heat exchanger 11 and oil separation device；
For the oil separation device at least provided with three interfaces A, B, C, oil separation device includes the first oil eliminator 18, oil filter screen
31, First Heat Exchanger 21 and first throttle device 19 are installed respectively from top to bottom inside first heat exchanging chamber of the first oil eliminator 18
There are First Heat Exchanger 21 and an oil filter screen 31, one end of the first heat exchanging chamber is communicated with first interface A, under oil filter screen 31
Side is communicated with second interface B, and the first heat exchanging chamber bottom of the first oil eliminator 18 is equipped with oil return pipe 6, a termination of oil return pipe 6
Mouth setting is respectively communicated with the heat exchange of oil return pipe 6 and first in the first heat exchanging chamber bottom, the input terminal and output end of first throttle device 19
Device 21, the outside that the output end of First Heat Exchanger 21 extends to the first oil eliminator 18 are communicated with third interface C；
Four interfaces of four-way valve 2 are respectively communicated with the high-pressure side of compressor 1, the low-pressure side of compressor 1, the second heat exchanger 3
And third heat exchanger 11, the other end of the second heat exchanger 3 are connected to the input terminal of the first check valve 4, the output end of the first check valve 4
It is connected to first interface A；The other end of third heat exchanger 11 is connected to the input terminal of the second check valve 14, the output of the second check valve 14
End connection first interface A；One end of second interface B connection second choke 9, the other end of second choke 9 are divided into two-way point
Not Lian Tong third check valve 10 and the 4th check valve 15 input terminal；The output end of third check valve 10 and the 4th check valve 15 connects
The input terminal of logical first check valve 4 and the second check valve 14；Third interface C is connected to the low-pressure side of compressor 1.Oil separation device
The oil circuit of First Heat Exchanger heat pump system reasonable for structure in heat pump system, in oil return apparatus is applied to recycle lubricating oil more
Add fully, heat pump system operation is made more to stablize.
The operation principle of above-mentioned heat pump system is as follows：
When heat pump system is in water heating or air conditioner refrigerating, the refrigerant flow direction of main loop is：Compressor 1 →
2 → the second heat exchanger of four-way valve, 34 → first interface of the check valve of (water heating) → first A → second interface B → second choke 9
11 2 → compressor of (air conditioner refrigerating) → four-way valve 1 of → third 10 → third of check valve heat exchanger.
When heat pump system is in water heating or air conditioner refrigerating, lubricating oil mixing refrigerant enters oil dress from first interface A
It postpones, lubricating oil realizes oily separation by oil filter screen 31, and the refrigerant mixture of lubricating oil or lubricating oil is flowed through from oil return pipe 6
First throttle device 19 enters the effect of 21 internal-external heat exchange of First Heat Exchanger after reducing pressure by regulating flow, to entering first from first interface A
The refrigerant of heat exchanging chamber further cools down, so as to improve refrigerant operating mode.
When heat pump system is in air-conditioning heating, the refrigerant flow direction of main loop is：1 → four-way valve of compressor 2 →
14 → the first interface of (air-conditioning heating) → second check valve of third heat exchanger 11 A → second interface B → second choke 9 → 4th
15 → the second 3 → four-way valve of heat exchanger, 2 → compressor 1 of check valve.
When heat pump system is in air-conditioning heating, lubricating oil mixing refrigerant is after first interface A enters oil separation device, lubricating oil
Oily separation is realized by oil filter screen 31, and the refrigerant mixture of lubricating oil or lubricating oil flows through first throttle device from oil return pipe 6
19, the effect of 21 internal-external heat exchange of First Heat Exchanger is entered after reducing pressure by regulating flow, to entering the cold of the first heat exchanging chamber from first interface A
Matchmaker further cools down, so as to improve refrigerant operating mode.
As shown in figure 4, the invention also discloses one kind have the multiple heat exchange enthalpy increasing heat pump system of oil, including compressor 1,
Four-way valve 2, the second heat exchanger 3, third heat exchanger 11 and oil separation device；
For the oil separation device at least provided with three interfaces A, B, C, oil separation device includes the first oil eliminator 18, oil filter screen
31, First Heat Exchanger 21 and first throttle device 19 are installed respectively from top to bottom inside first heat exchanging chamber of the first oil eliminator 18
There are First Heat Exchanger 21 and an oil filter screen 31, one end of the first heat exchanging chamber is communicated with first interface A, under oil filter screen 31
It is communicated with second interface B below the first heat exchanging chamber of portion, the first heat exchanging chamber bottom of the first oil eliminator 18 is equipped with oil return pipe 6,
The top in the first heat exchanging chamber bottom, input terminal and the output end difference of first throttle device 19 is arranged in one end interface of oil return pipe 6
Another end interface of connection oil return pipe 6 and 21 oil return pipe 6 of First Heat Exchanger is connected to First Heat Exchanger 21, First Heat Exchanger 21
The outside that output end extends to the first oil eliminator 18 is communicated with third interface C, is connected between oil return pipe 6 and First Heat Exchanger 21
There is first throttle device 19；
The lower section of first oil eliminator 18 is equipped with multi-heat exchanger 30, and multi-heat exchanger 30 also connects at least provided with five
Mouthful D, E, F, G, H, are equipped with the 4th heat exchanger 23 and the 5th heat exchanger 24 inside the second heat exchanging chamber of multi-heat exchanger 30, and the 4th
One end of heat exchanger 23 is connected to second interface B, the other end extends to the outside of multi-heat exchanger 30 and is communicated with the 6th interface F,
One end of 5th heat exchanger 24 is connected to the 4th interface D, the other end extends to the outside of multi-heat exchanger 30 and is communicated with the 5th and connects
Mouth E, the both sides of the second heat exchanging chamber have been respectively communicated with return air inlet H and return air outlet G；
Four interfaces of four-way valve 2 are respectively communicated with the high-pressure side of compressor 1, return air inlet H, the second heat exchanger 3 and third
Heat exchanger 11, the other end of the second heat exchanger 3 are connected to the input terminal of the first check valve 4, the output end connection of the first check valve 4 the
One interface A；The other end of third heat exchanger 11 is connected to the input terminal of the second check valve 14, the output end connection of the second check valve 14
First interface A；One end of second interface B connection second choke 9, the other end of second choke 9 are divided into two-way and are respectively communicated with
The input terminal of third check valve 10 and the 4th check valve 15；The output end of third check valve 10 and the 4th check valve 15 connection first
The input terminal of check valve 4 and the second check valve 14；Third interface C is connected to the low-pressure side of compressor 1.
Above-mentioned is having the excellent of the separation conducive to lubricating oil and refrigerant with the multiple heat exchange enthalpy increasing heat pump system of oil
Point is outer, installs the oil separation device with the multiple heat exchange of oil and further high temperature and pressure refrigerant evaporation is exchanged heat, evaporated after making throttling
Effect is more preferable, while with return-air low temperature refrigerant heat exchange, improving refrigerant suction temperature, increasing enthalpy again.
In addition, the 4th interface D is connected to by solenoid valve 25 with the high-pressure side of compressor, the 6th interface F and second choke 9
Input terminal connection, the 5th interface E is connected to by third flow controller 29 with first interface A, and under worst cold case, solenoid valve 25 is beaten
It opens, the bypassed exhaust gas high temperature and high pressure gas of compressor 1 enters multiple heat exchange in multi-heat exchanger 30, is handed over return-air low temperature refrigerant heat
It changes, evaporation three times increases enthalpy.
It has also been sequentially communicated between return air outlet G and second choke 9 with the multiple heat exchange enthalpy increasing heat pump system of oil
4th flow controller 17 and unloading valve 16 when compressor 1 is in superhigh temperature load operation, pass through the 4th from what return air outlet G was exported
Refrigerant cooling, decompression are played the role of being depressured load down again by unloading valve 16 after flow controller 17 throttles.
The above-mentioned operation principle with the multiple heat exchange enthalpy increasing heat pump system of oil is as follows：
When heat pump system is in water heating or air conditioner refrigerating, the refrigerant flow direction of main loop is：Compressor 1 →
2 → the second heat exchanger of four-way valve, 34 → first interface of the check valve of (the water heating) → first A → heat exchangers 23 of second interface B → the 4th
11 2 → the compression of (air conditioner refrigerating) → four-way valve of → the six interface F → second choke 9 → third, 10 → third of check valve heat exchanger
Machine 1.
When heat pump system is in water heating or air conditioner refrigerating, lubricating oil mixing refrigerant enters oil dress from first interface A
It postpones, lubricating oil realizes oily separation by oil filter screen 31, and the refrigerant mixture of lubricating oil or lubricating oil is flowed through from oil return pipe 6
First throttle device 19 enters the effect of 21 internal-external heat exchange of First Heat Exchanger after reducing pressure by regulating flow, to entering first from first interface A
The refrigerant of heat exchanging chamber further cools down, so as to improve refrigerant operating mode.
When heat pump system is in air-conditioning heating, the refrigerant flow direction of main loop is：1 → four-way valve of compressor 2 →
11 → the second 14 → first interface of check valve A of third heat exchanger → 23 → the six interface F → the of the heat exchangers of second interface B → the 4th
Two 9 → the 4th check valves of flow controller, 15 → the second 3 → four-way valve of heat exchanger, 2 → compressor 1.
When heat pump system is in air-conditioning heating, lubricating oil mixing refrigerant is after first interface A enters oil separation device, lubricating oil
Oily separation is realized by oil filter screen 31, and the refrigerant mixture of lubricating oil or lubricating oil flows through first throttle device from oil return pipe 6
19, the effect of 21 internal-external heat exchange of First Heat Exchanger is entered after reducing pressure by regulating flow, to entering the cold of the first heat exchanging chamber from first interface A
Matchmaker further cools down, so as to improve refrigerant operating mode.
Worst cold case return-air increasing enthalpy circuit：1 → solenoid valve of compressor 25 → the 4th, the 24 → thirds of heat exchanger of interface D → the 5th
29 → first interface of flow controller A.The circuit is under worst cold case, and bypassed exhaust gas pressure high temperature hot gas enters the from compressor 1
With return-air low temperature refrigerant heat exchange in two separators 30, repeatedly evaporation raising system enthalpy is carried out.
Embodiments of the present invention are explained in detail above in association with attached drawing, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (8)
1. a kind of oil separation device, it is characterised in that：The oil separation device is at least provided with three interfaces (A, B, C), the oil separation device
Including the first oil eliminator (18), oil filter screen (31), First Heat Exchanger (21) and first throttle device (19), the first oil separation
First Heat Exchanger (21) and oil filter screen (31) are separately installed with inside first heat exchanging chamber of device (18) from top to bottom, first changes
One end of hot chamber is communicated with first interface (A), and second interface (B), the first oil separation are communicated with below oil filter screen (31)
First heat exchanging chamber bottom of device (18) is equipped with oil return pipe (6), and an end interface of the oil return pipe (6) is arranged in the first heat exchanging chamber
Bottom, the input terminal and output end of first throttle device (19) are respectively communicated with oil return pipe (6) and First Heat Exchanger (21), the first heat exchange
The outside that the output end of device (21) extends to the first oil eliminator (18) is communicated with third interface (C).
2. oil separation device according to claim 1, it is characterised in that：It is equipped with below first oil eliminator (18)
Multi-heat exchanger (30), multi-heat exchanger (30) is also at least provided with five interfaces (D, E, F, G, H), the multi-heat exchanger
(30) the 4th heat exchanger (23) and the 5th heat exchanger (24), one end of the 4th heat exchanger (23) are installed inside the second heat exchanging chamber
It is connected to second interface (B), the other end extends to the outside of multi-heat exchanger (30) and is communicated with the 6th interface (F), the 5th heat exchange
One end of device (24) is connected to the 4th interface (D), the other end extends to the outside of multi-heat exchanger (30) and is communicated with the 5th interface
(E), the both sides of the second heat exchanging chamber have been respectively communicated with return air inlet (H) and return air outlet (G).
3. oil separation device according to claim 2, it is characterised in that：It first oil eliminator (18) and described multiple changes
Hot device (30) is monolithic construction.
4. oil separation device according to claim 1, it is characterised in that：The first throttle device (19) is capillary.
5. a kind of heat pump system with oil separation device, it is characterised in that：Including compressor (1), four-way valve (2), the second heat exchange
Device (3), third heat exchanger (11) and oil separation device；
For the oil separation device at least provided with three interfaces (A, B, C), the oil separation device includes the first oil eliminator (18), oil mistake
Strainer (31), First Heat Exchanger (21) and first throttle device (19), by upper inside the first heat exchanging chamber of the first oil eliminator (18)
It is separately installed with First Heat Exchanger (21) under and oil filter screen (31), one end of the first heat exchanging chamber are communicated with first interface
(A), second interface (B), the first heat exchanging chamber bottom peace of the first oil eliminator (18) are communicated with below oil filter screen (31)
Equipped with oil return pipe (6), the setting of an end interface of the oil return pipe (6) in the first heat exchanging chamber bottom, first throttle device (19) it is defeated
Enter end and output end is respectively communicated with oil return pipe (6) and First Heat Exchanger (21), the output end of First Heat Exchanger (21) extends to
The outside of one oil eliminator (18) is communicated with third interface (C)；
Four interfaces of the four-way valve (2) are respectively communicated with the high-pressure side of compressor (1), the low-pressure side of compressor (1), second change
Hot device (3) and third heat exchanger (11), the other end of second heat exchanger (3) are connected to the input terminal of the first check valve (4), the
The output end connection first interface (A) of one check valve (4)；The other end of the third heat exchanger (11) is connected to the second check valve
(14) input terminal, the output end connection first interface (A) of the second check valve (14)；Second interface (B) is connected to second choke
(9) other end of one end, second choke (9) is divided into two-way and is respectively communicated with third check valve (10) and the 4th check valve (15)
Input terminal；The output end of third check valve (10) and the 4th check valve (15) is connected to the first check valve (4) and the second check valve
(14) input terminal；Third interface (C) is connected to the low-pressure side of compressor (1).
6. one kind having the multiple heat exchange enthalpy increasing heat pump system of oil, it is characterised in that：Including compressor (1), four-way valve (2),
Two heat exchangers (3), third heat exchanger (11) and oil separation device；
For the oil separation device at least provided with three interfaces (A, B, C), the oil separation device includes the first oil eliminator (18), oil mistake
Strainer (31), First Heat Exchanger (21) and first throttle device (19), by upper inside the first heat exchanging chamber of the first oil eliminator (18)
It is separately installed with First Heat Exchanger (21) under and oil filter screen (31), one end of the first heat exchanging chamber are communicated with first interface
(A), it is communicated with second interface (B) below lower part the first heat exchanging chamber of oil filter screen (31), the of the first oil eliminator (18)
One heat exchanging chamber bottom is equipped with oil return pipe (6), and an end interface of the oil return pipe (6) is arranged in the upper of the first heat exchanging chamber bottom
Side, the input terminal and output end of first throttle device (19) are respectively communicated with oil return pipe (6) and First Heat Exchanger (21) described oil return pipe
(6) another end interface is connected to First Heat Exchanger (21), and the output end of First Heat Exchanger (21) extends to the first oil eliminator
(18) outside is communicated with third interface (C), and first segment is communicated between the oil return pipe (6) and the First Heat Exchanger (21)
Flow device (19)；
Multi-heat exchanger (30) is installed below first oil eliminator (18), multi-heat exchanger (30) also at least provided with
Five interfaces (D, E, F, G, H), be equipped with inside the second heat exchanging chamber of the multi-heat exchanger (30) the 4th heat exchanger (23) and
5th heat exchanger (24), one end of the 4th heat exchanger (23) is connected to second interface (B), the other end extends to multi-heat exchanger
(30) outside is communicated with the 6th interface (F), and one end of the 5th heat exchanger (24) is connected to the 4th interface (D), the other end extends
It is communicated with the 5th interface (E) to the outside of multi-heat exchanger (30), the both sides of the second heat exchanging chamber have been respectively communicated with return air inlet (H)
And return air outlet (G)；
Four interfaces of the four-way valve (2) are respectively communicated with the high-pressure side of compressor (1), return air inlet (H), the second heat exchanger
(3) and third heat exchanger (11), the other end of second heat exchanger (3) are connected to the input terminal of the first check valve (4), and first is single
To the output end of valve (4) connection first interface (A)；The other end of the third heat exchanger (11) is connected to the second check valve (14)
Input terminal, the output end connection first interface (A) of the second check valve (14)；Second interface (B) is connected to the one of second choke (9)
It holds, the other end of second choke (9) is divided into the input that two-way is respectively communicated with third check valve (10) and the 4th check valve (15)
End；The output end of third check valve (10) and the 4th check valve (15) is connected to the first check valve (4) and the second check valve (14)
Input terminal；Third interface (C) is connected to the low-pressure side of compressor (1).
7. according to claim 6 have the multiple heat exchange enthalpy increasing heat pump system of oil, it is characterised in that：4th interface
(D) it is connected to the high-pressure side of compressor by solenoid valve (25), the input terminal of the 6th interface (F) and second choke (9)
Connection, the 5th interface (E) are connected to by third flow controller (29) with first interface (A).
8. according to claim 6 have the multiple heat exchange enthalpy increasing heat pump system of oil, it is characterised in that：The return air outlet
(G) and between second choke (9) the 4th flow controller (17) and unloading valve (16) have also been sequentially communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682858.9A CN108716793B (en) | 2018-06-27 | 2018-06-27 | Oil content device and heat pump system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682858.9A CN108716793B (en) | 2018-06-27 | 2018-06-27 | Oil content device and heat pump system thereof |
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| CN108716793A true CN108716793A (en) | 2018-10-30 |
| CN108716793B CN108716793B (en) | 2023-09-08 |
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| CN201810682858.9A Active CN108716793B (en) | 2018-06-27 | 2018-06-27 | Oil content device and heat pump system thereof |
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| CN108716793B (en) | 2023-09-08 |
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