CN106196776A - Gas-liquid separator and there is its source pump - Google Patents
Gas-liquid separator and there is its source pump Download PDFInfo
- Publication number
- CN106196776A CN106196776A CN201610692238.4A CN201610692238A CN106196776A CN 106196776 A CN106196776 A CN 106196776A CN 201610692238 A CN201610692238 A CN 201610692238A CN 106196776 A CN106196776 A CN 106196776A
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- Prior art keywords
- inlet
- outlet pipe
- gas
- housing
- liquid separator
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Classifications
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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
-
- 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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of gas-liquid separator and there is its source pump, gas-liquid separator, including: housing, the first inlet/outlet pipe and the second inlet/outlet pipe.The inner chamber of housing includes disengagement chamber, and disengagement chamber forms the revolution cavity vertically extending with axis, and the bottom of housing is communicated with the oil return opening of disengagement chamber.First inlet/outlet pipe and second is imported and exported and is connected on housing, and first inlet/outlet pipe tangentially be connected to form connected entrance with disengagement chamber, second inlet/outlet pipe extend into interior intracavity from the top of housing, and the mouth of pipe stretching into inner chamber of the second inlet/outlet pipe is positioned at the lower section of connected entrance.Gas-liquid separator according to the present invention, liquid oil droplet is suitable to when separating flow into from the first inlet/outlet pipe in gas mixture, thus the purity of isolated gaseous coolant can be improved, be suitable to when the liquid refrigerants contained in gas-liquid mixture is more flow into from the second inlet/outlet pipe, thus can accelerate separating rate, and then gas-liquid separator is provided with multifunctional usage when reality is applied.
Description
Technical field
The present invention relates to heating-cooling equipment field, especially relate to a kind of gas-liquid separator and there is its heat pump machine
Group.
Background technology
Gas-liquid separator in heat pump, its second inlet/outlet pipe is generally U-shaped in cross-section, and gas-liquid mixture is from straight tube import
Entering, go out from U bank of tubes after carrying out gas-liquid separation, a small amount of liquid can together discharge U by the oil return opening of U pipe bottom and gas
Pipe, it is to avoid big quantity of fluid enters compressor.Traditional gas-liquid separator uses and there is also some shortcoming and defect, the most such as
Under:
A, source pump are when reverse cycle defrosting, and finned heat exchanger internal condensation has stockpiled substantial amounts of liquid refrigerants, defrosting
After end, refrigerant flow switches, and the liquid refrigerants stockpiled in a large number can enter in gas-liquid separator.When the amount of liquid refrigerants exceedes
During certain scope, liquid refrigerants can be directly entered U pipe import, causes compressor to suck a large amount of liquid refrigerants, serious liquid occurs
Hit phenomenon, compressor itself and refrigeration system can be caused bigger damage；
B, after compressor emergency shutdown, refrigerant migration, liquid refrigerants can be entered gas-liquid separator, and be entered by the oil return opening of U pipe
Enter inside U pipe.When the amount of liquid refrigerants is more than U pipe upper critical point, unit start can cause a large amount of liquid refrigerants to enter compression
, there is serious band liquid liquid hit phenomenon, compressor itself and refrigeration system can be caused bigger damage in machine；
C, for part Air-Cooled Heat Pump Unit, it is only necessary to unit exit defrosting or refrigeration mode transformation of ownership heat pattern run
Time, just use gas-liquid separator, enter defrosting and/or heating mode then avoids compression by other method when turning refrigeration mode operation
Machine absorbing gas belt liquid, is now not required to use gas-liquid separator, and this edema caused by disorder of QI is not suitable for such Air-Cooled Heat Pump Unit.
Summary of the invention
Present invention seek to address that technical problem present in prior art.To this end, it is desirable to provide a kind of gas-liquid is divided
From device, use this gas-liquid separator can avoid the occurrence of liquid hit phenomenon.
A kind of source pump with above-mentioned gas-liquid separator of offer is provided.
Gas-liquid separator according to embodiments of the present invention, including: housing, the inner chamber of described housing includes disengagement chamber, described
Disengagement chamber forms the revolution cavity vertically extending with axis, and the bottom of described housing is communicated with returning of described disengagement chamber
Hydraulic fluid port；First inlet/outlet pipe, described first inlet/outlet pipe connect on the housing, and described first inlet/outlet pipe tangentially with institute
State disengagement chamber to be connected to form connected entrance；Second inlet/outlet pipe, described second inlet/outlet pipe connects on the housing, and described the
Two inlet/outlet pipes extend into described interior intracavity from the top of described housing, the mouth of pipe position stretching into described inner chamber of described second inlet/outlet pipe
Lower section in described connected entrance.
Gas-liquid separator according to embodiments of the present invention, owing to its inner chamber includes the disengagement chamber of the turned cavities bodily form, and is arranged
First inlet/outlet pipe and the second inlet/outlet pipe, the first inlet/outlet pipe tangentially connects disengagement chamber, and the second inlet/outlet pipe stretch into inner chamber
The mouth of pipe is relatively low, and liquid oil droplet is suitable to when separating flow into from the first inlet/outlet pipe in gas mixture, thus can improve point
The purity of the gaseous coolant separated out, is suitable to when the liquid refrigerants contained in gas-liquid mixture is more flow into from the second inlet/outlet pipe,
Thus can accelerate separating rate, and then gas-liquid separator is provided with multifunctional usage when reality is applied.
In certain embodiments, the pipeline section height stretching into described inner chamber of described second inlet/outlet pipe is more than or equal to described inner chamber
Maximum inner diameter.
In certain embodiments, described housing is formed as prismatic pipe.So structure of gas-liquid separator is relatively simple,
Processing cost is relatively low.
Specifically, the pipeline section stretching into described inner chamber of described second inlet/outlet pipe is formed as the pipe coaxial with described housing.
Second inlet/outlet pipe is coaxially disposed with housing, is conducive to guiding the gas mixture flowed into for the helical movement, it is ensured that gas-liquid separation
Effect.
In certain embodiments, described connected entrance is arranged adjacent to the top of described housing.Thus, gas-liquid separator can be avoided
Interior liquid flows out from the first inlet/outlet pipe, when gas mixture passes in and out bank of tubes from the first inlet/outlet pipe inflow and gaseous coolant from second
When going out, the purity of gaseous coolant can be improved.
In certain embodiments, the central axis of described first inlet/outlet pipe and the axis perpendicular of described housing.Thus have
It is beneficial to gas mixture and tangentially flows into gas-liquid separator.
In certain embodiments, described housing, described first inlet/outlet pipe and described second inlet/outlet pipe are respectively straight tube.Gas-liquid
Separator is easily worked manufacture.
In certain embodiments, described first inlet/outlet pipe and described second inlet/outlet pipe are respectively welded and are connected to described housing
On.Thus improve structure of gas liquid separator connection reliability and sealing.
In certain embodiments, when coolant flows in described housing from described first inlet/outlet pipe, the flow velocity of described coolant
More than or equal to 8m/s.When gas mixture flows into gas-liquid separator from the first inlet/outlet pipe, it is ensured that gas mixture can fill
Divide and be centrifuged screw, it is ensured that gas-liquid separation effect.
Source pump according to embodiments of the present invention, including according to the gas-liquid separator described in the above embodiment of the present invention.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Substantially with easy to understand, wherein:
Fig. 1 is the structural representation of gas-liquid separator according to embodiments of the present invention；
Fig. 2 is the schematic top plan view of gas-liquid separator according to embodiments of the present invention；
Fig. 3 is the structural representation of source pump according to embodiments of the present invention.
Reference:
Source pump 100,
Compressor 1, air vent 11, gas returning port 12,
Outdoor heat exchanger 2, blower fan 21,
Target heat exchanger 3, shell the 31, first coolant interface the 311, second coolant interface the 312, the 3rd coolant interface 313, enter
The mouth of a river 314, outlet 315,
Restricting element 4,
Commutation assembly the 6, first valve port A, the second valve port B, the 3rd valve port C, the 4th valve port D,
Gas-liquid separator 7, housing 71, inner chamber 710, disengagement chamber 701, oil return opening the 702, first inlet/outlet pipe 72, connected entrance
721, the second inlet/outlet pipe 73, oil return pipe 74,
First check valve the 81, second check valve 82,
Control valve 9.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to Fig. 1-Fig. 2, gas-liquid separator 7 according to embodiments of the present invention is described.
Gas-liquid separator 7 according to embodiments of the present invention, as depicted in figs. 1 and 2, including: housing the 71, first inlet/outlet pipe 72
With the second inlet/outlet pipe 73.
The inner chamber 710 of housing 71 includes that disengagement chamber 701, disengagement chamber 701 form the revolution vertically extending with axis
Cavity, the bottom of housing 71 is communicated with the oil return opening 702 of disengagement chamber 701.First inlet/outlet pipe 72 and the second inlet/outlet pipe 73 connect
On housing 71, the first inlet/outlet pipe 72 tangentially is connected to be formed connected entrance 721, the second inlet/outlet pipe with disengagement chamber 701
73 extend in inner chamber 710 from the top of housing 71, and the mouth of pipe stretching into inner chamber 710 of the second inlet/outlet pipe 73 is positioned at connected entrance 721
Lower section.
Specifically, gas-liquid separator 7, for the gaseous coolant in coolant mixture and liquid refrigerants being isolated, is separated
Gaseous coolant and liquid refrigerants flow to different parts or make different disposal.Coolant mixture also can be mixed with the oil such as lubricating oil
Class material, oily substance can be isolated to reclaim or improve the purity of coolant from mixture by gas-liquid separator 7.
It is understood that have employed in the refrigeration having or the heating combined equipment of gas-liquid separator, when device is at full capacity
When operation or few band liquid run, coolant may be taken away the oil in compressor oil groove, and bearing has oil starvation to damage risk.When in coolant
During a large amount of band liquid, it is likely to result in screw rod hydraulic compression, causing the generation high temperature that rubs between screw rod and compressor housing between screw rod to seize.
Therefore this device is necessary to arrange gas-liquid separator, gas-liquid mixture is sufficiently separated, to ensure the peace of compressor
Row for the national games.
Here, housing 71 connects the first inlet/outlet pipe 72 and the second inlet/outlet pipe 73, shows that gas-liquid separator 7 in use may be used
Having two kinds of circulation styles, i.e. gas mixture and both can flow into gas-liquid separator 7 from the first inlet/outlet pipe 72, gas mixture is also
Gas-liquid separator 7 can be flowed into from the second inlet/outlet pipe 73.Gas is carried out when gas mixture flows into inner chamber 710 from the first inlet/outlet pipe 72
When liquid separates, isolated gaseous coolant is discharged from the second inlet/outlet pipe 73；When gas-liquid mixture is in the second inlet/outlet pipe 73 flows into
When chamber 710 carries out gas-liquid separation, isolated gaseous coolant is discharged from the first inlet/outlet pipe 72.
Wherein, owing to the first inlet/outlet pipe 72 is tangentially connected with the disengagement chamber 701 of housing 71, and disengagement chamber 701
Form the revolution cavity vertically extending with axis, when gas mixture flows into gas-liquid separator 7 from the first inlet/outlet pipe 72
Time, can tangentially collide disengagement chamber 701 inwall, mixture is made by constraint and the action of gravity of disengagement chamber 701 inwall
Screw.Under the influence of centrifugal force, in gas mixture, oil particles constantly clashes into the inwall of disengagement chamber 701, and sticks to
On the inwall of disengagement chamber 701, oil particles and drop flow downward and collect in bottom the inner chamber 710 of gas-liquid separator 7, collect
Liquid refrigerants and oily substance can be from oil return opening 702 drainage gas-liquid separators 7.And remaining gas part, after rotating several weeks
Can be discharged by the second inlet/outlet pipe 73.
When gas-liquid mixture flows into gas-liquid separator 7 from the second inlet/outlet pipe 73, liquid refrigerants and oils thing in mixture
Matter falls to the bottom of inner chamber 710 under gravity, and gaseous coolant can be discharged from the first inlet/outlet pipe 72 after floating up.
The mouth of pipe stretching into inner chamber 710 due to the second inlet/outlet pipe 73 is less than the height of connected entrance 721, therefore in inner chamber 710
The liquid refrigerants amount of accumulation only arrives a certain amount of, and the liquid level of liquid refrigerants just can rise at connected entrance 721 and from even
Discharge at port 721.Therefore when design, connected entrance 721 is arranged higher, be avoided that isolated liquid refrigerants mixes again
Enter in gaseous coolant.
Being appreciated that by described above under two kinds of circulation styles of gas-liquid separator 7, the motion of gas mixture is different,
Gas-liquid separation effect is the most different.Two kinds of circulation styles are applicable to apply in different situations, can reach different function mesh
's.
Specifically, owing to the mouth of pipe stretching into inner chamber 710 of the second inlet/outlet pipe 73 is less than the height of connected entrance 721, therefore
When having a large amount of liquid refrigerants in the mixture entering gas-liquid separator 7, mixture is suitable to flow into from the second inlet/outlet pipe 73.Flow into
Coolant in liquid refrigerants can hurtle down to inner chamber 710, gas-liquid separation speed is fast.
When the lubricating oil being mixed in needing the gaseous coolant to flowing separates, now gas mixture can be from first
Inlet/outlet pipe 72 enters disengagement chamber 701 with higher flow velocity, and the fluid oil that in gas mixture, quality is bigger drops in centrifugal action
Lower shock housing 71, effectively reduces the oil content in coolant.
Gas-liquid separator 7 the most according to embodiments of the present invention, owing to its inner chamber 710 includes the disengagement chamber of the turned cavities bodily form
701, and be provided with the first inlet/outlet pipe 72 and the second inlet/outlet pipe 73, the first inlet/outlet pipe 72 tangentially connects disengagement chamber 701, and second
The mouth of pipe stretching into inner chamber 710 of inlet/outlet pipe 73 is relatively low, and liquid oil droplet is suitable to from first when separating in gas mixture
Inlet/outlet pipe 72 flows into, thus can improve the purity of isolated gaseous coolant, when the liquid refrigerants contained in gas-liquid mixture relatively
Be suitable to time many flow into from the second inlet/outlet pipe 73, thus separating rate can be accelerated, and then gas-liquid separator 7 has when reality is applied
Multifunctional usage.
The multifunctional usage that gas-liquid separator 7 reaches in refrigerating and heating systems will be described below source pump 100
Time further illustrate, repeat no more here.
In certain embodiments, as it is shown in figure 1, housing 71 is formed as prismatic pipe, housing 71 prolongs along the vertical direction
Stretch.So structure of gas-liquid separator 7 is relatively simple, and processing cost is relatively low.
Specifically, as it is shown in figure 1, the pipeline section stretching into inner chamber 710 of the second inlet/outlet pipe 73 is formed as coaxial with housing 71
Pipe.It is appreciated that gas mixture is along disengagement chamber 701 when gas mixture flows into inner chamber 710 from the first inlet/outlet pipe 72
Inwall is for the helical movement, is coaxially disposed with housing 71 by the second inlet/outlet pipe 73, is conducive to guiding the gas mixture flowed into make spiral shell
Rotation motion, it is ensured that gas-liquid separation effect.
Alternatively, as it is shown in figure 1, the second inlet/outlet pipe 73 is formed as straight tube, the second inlet/outlet pipe 73 is vertically extending.
Further, as depicted in figs. 1 and 2, housing the 71, first inlet/outlet pipe 72 and the second inlet/outlet pipe 73 are respectively formed as directly
Pipe, so, gas-liquid separator 7 is easily worked manufacture.
In certain embodiments, the central axis of the first inlet/outlet pipe 72 and the axis perpendicular of housing 71, thus be conducive to
Gas mixture tangentially flows into gas-liquid separator 7.
In certain embodiments, as it is shown in figure 1, the pipeline section height L stretching into inner chamber 710 of the second inlet/outlet pipe 73 is more than or equal to
The maximum inner diameter D of inner chamber 710.Second inlet/outlet pipe 73 arranges longer, is conducive to flowing from the second inlet/outlet pipe 73 when gas-liquid mixture
Fashionable, mixture quickly drops down onto bottom.
Specifically, connected entrance 721 is arranged adjacent to the top of housing 71.It is understood that due to the second inlet/outlet pipe 73 from
Top stretches in inner chamber 710, and in inner chamber 710, isolated liquid refrigerants is difficult to discharge from the second inlet/outlet pipe 73.And due to
One inlet/outlet pipe 72 is tangentially connected on housing 71, is therefore arranged adjacent to the top of housing 71 by connected entrance 721, can avoid gas
Liquid in liquid/gas separator 7 flows out from the first inlet/outlet pipe 72, when gas mixture flows into and gaseous coolant from the first inlet/outlet pipe 72
When the second inlet/outlet pipe 73 is discharged, the purity of gaseous coolant can be improved.
In the example of fig. 1, connected entrance 721 adjacent to the top of housing 71 arrange, the second inlet/outlet pipe 73 stretch into inner chamber 710
Pipeline section height L more than or equal to the maximum inner diameter D of inner chamber 710.So, connected entrance 721 and the mouth of pipe distance of the second inlet/outlet pipe 73
Can fully pull open, it is ensured that from first inlet/outlet pipe 72 flow into gas mixture can the most for the helical movement after, isolated gaseous state
Coolant is discharged from the second inlet/outlet pipe 73 again.
In certain embodiments, the first inlet/outlet pipe 72 and the second inlet/outlet pipe 73 are respectively welded and are connected on housing 71, thus
Improve gas-liquid separator 7 structure connection reliability and sealing.
In certain embodiments, when coolant flows in housing 71 from the first inlet/outlet pipe 72, the flow velocity of coolant is more than or equal to
8m/s, so, when gas mixture flows into gas-liquid separator 7 from the first inlet/outlet pipe 72, it is ensured that gas mixture can fill
Divide and be centrifuged screw, it is ensured that gas-liquid separation effect.
In a concrete example, as depicted in figs. 1 and 2, gas-liquid separator 7 includes: the first inlet/outlet pipe 72, second passes in and out
Pipe 73, housing 71 and oil return pipe 74.
Housing 71 is steel plate, the sealing container of steel pipe processing welding composition, and housing 71 is cylindrical structure.
First inlet/outlet pipe 72 is weldingly connected with housing 71, and is positioned at the tangential direction of Cylinder Shell 71, the second inlet/outlet pipe
73 are weldingly connected with housing 71.Oil return pipe 74 is positioned at bottom housing 71, and be connected internal with housing 71 of oil return pipe 74 communicates, and oil return
Pipe 74 is connected at the oil return opening 702 of housing 71.
The pipeline that oil return pipe 74 is steel pipe or other metal material is made, oil return pipe 74 connects bottom housing 71.
The pipeline that first inlet/outlet pipe 72 is steel pipe or other metal material is made, it is close that the first inlet/outlet pipe 72 is positioned at housing 71
The position at top, only could cross the first inlet/outlet pipe 72 when the liquid in housing 71 close to liquid when being full of and flow out.First turnover
The welding position of pipe 72 and housing 71 is at housing 71 tangential direction, the first inlet/outlet pipe 72 centrage and housing 71 central axis.
First inlet/outlet pipe 72 diameter, by calculating, makes exhaust flow rate control at more than 8m/s.
The pipeline that second inlet/outlet pipe 73 is steel pipe or other metal material is made, the second inlet/outlet pipe 73 and Cylinder Shell 71
With one heart, the second inlet/outlet pipe 73 insert that the part of housing 71 is housing 71 diameter more than 1 times.
When gas-liquid separator 7 is applied in refrigeration or heating combined equipment, gas-liquid separator 7 is positioned over the fin of device and changes
Between hot device and cross valve, cross valve and the first inlet/outlet pipe 72 connect, and finned heat exchanger and the second inlet/outlet pipe 73 connect.Refrigeration fortune
During row, the high-temperature oil gas mixture that compressor 1 is discharged tangentially enters gas-liquid by the first inlet/outlet pipe 72 with certain flow velocity and divides
From device 7, gas mixture is spinned motion in housing 71, and under the influence of centrifugal force, oil particles constantly clashes into housing 71, and
Stick on housing 71.Enter finned heat exchanger by the second inlet/outlet pipe 73 after gas rotating a few week to condense, the lubrication after separation
Oil flows to container bottom under gravity, is discharged by oil return pipe 74.
Defrosting is exited when switching to heating operation, and a large amount of coolant of finned heat exchanger enters gas-liquid by the second inlet/outlet pipe 73 and divides
From device 7, after gaseous state separates with liquid refrigerants, gaseous coolant returns to cross valve by the first inlet/outlet pipe 72, the lubricating oil after separation
Discharged by oil return pipe 74 with liquid refrigerants.Oil return pipe 74 diameter is unsuitable excessive, to prevent a large amount of band liquid.
In this example, gas-liquid separator 7 has plurality of advantages, and first, this gas-liquid separator 7 is substantial amounts of when exiting defrosting
Gas-liquid mixed coolant sufficiently separates, it is to avoid compressor 1 band liquid runs.Secondly, during refrigerating operaton, to compressor 1 row
The high-temperature oil gas mixture gone out carries out secondary oil separation, it is ensured that enters oil content in the coolant in circulation extremely low, is greatly improved
The heat exchange efficiency of heat exchanger, it is possible to decrease heat exchanger materials uses, lifting device refrigerating capacity and efficiency.
For being further appreciated by the operation principle of multifunctional gas-liquid separator 7, application is described according to this referring to Fig. 1-Fig. 3
A kind of source pump 100 of the gas-liquid separator 7 of inventive embodiments.
Source pump 100 according to embodiments of the present invention, as it is shown on figure 3, include: compressor 1, commutation assembly 6, target are changed
Hot device 3, outdoor heat exchanger 2, restricting element 4 and gas-liquid separator 7.
Compressor 1 has air vent 11 and gas returning port 12, and compressor 1 is for pressing the coolant that gas returning port 12 flows into
Contracting, forms High Temperature High Pressure cold media gas after coolant compression and discharges from air vent 11.
Commutation assembly 6 is provided with the first valve port A, the second valve port B, the 3rd valve port C and the 4th valve port D, the first valve port A and the 3rd
One of them connection in valve port C and the 4th valve port D, another in the second valve port B and the 3rd valve port C and the 4th valve port D connects
Logical, the first valve port A connects with air vent 11, and the second valve port B connects with gas returning port 12.It is to say, commutation assembly 6 has two kinds
Conducting state, a kind of conducting state is the first valve port A and the 3rd valve port C turns on and the second valve port B and the 4th valve port D conducting, separately
A kind of conducting state is the first valve port A and the 4th valve port D turns on and the second valve port B and the 3rd valve port C conducting.
Preferably due to the application technology that cross valve is in air-conditioning equipment is the most ripe, and the volume of cross valve is little, cost
Relatively low, the commutation function of cross valve is stable, reliable, and therefore cross valve selected by commutation assembly 6.Certainly, the structure of commutation assembly 6 can
Being not limited to this, commutation assembly 6 can be also the valve member in parallel, in series by multiple control valves disclosed in prior art.
One end of target heat exchanger 3 is connected with the 4th valve port D, and one end of outdoor heat exchanger 2 is connected with the 3rd valve port C, joint
Fluid element 4 is connected in series between target heat exchanger 3 and outdoor heat exchanger 2.
Alternatively, outdoor heat exchanger 2 can be air-cooled heat exchanger, and source pump 100 is Air-Cooled Heat Pump Unit 100.Outdoor
Heat exchanger 2 is alternatively water-cooled heat exchanger, is not especially limited here.It addition, restricting element 4 also should be interpreted broadly, throttling
As long as element 4 can reduce the air pressure of the gaseous coolant passed through.Alternatively, restricting element 4 can be electric expansion valve or electronic
Valve, electromagnetic valve or the combinative structure of above-mentioned valve body.
Gas-liquid separator 7 is connected in series between commutation assembly 6 and outdoor heat exchanger 2, and gas-liquid separator 7 includes: housing
71, the first inlet/outlet pipe 72 and the second inlet/outlet pipe 73, the inner chamber 710 of housing 71 includes that disengagement chamber 701, disengagement chamber 701 are formed with axle
The revolution cavity that line is vertically extending, the bottom of housing 71 is communicated with the oil return opening 702 of disengagement chamber 701, the first turnover
Pipe 72 and the second inlet/outlet pipe 73 are connected on housing 71, and the first inlet/outlet pipe 72 is tangentially connected with disengagement chamber 701 with shape
Becoming connected entrance 721, the second inlet/outlet pipe 73 extend in inner chamber 710 from the top of housing 71, and in the stretching into of the second inlet/outlet pipe 73
The mouth of pipe in chamber 710 is positioned at the lower section of connected entrance 721, and wherein, the first inlet/outlet pipe 72 is connected with the 3rd valve port C, the second inlet/outlet pipe 73
It is connected with outdoor heat exchanger 2.
Specifically, as it is shown on figure 3, compressor 1, commutation assembly 6, outdoor heat exchanger 2, target heat exchanger 3 and restricting element 4
Limit for the kind of refrigeration cycle path of the coolant that circulates and heat circulating path, i.e. source pump 100 has refrigeration and heats
Function.
When source pump 100 needs to carry out refrigeration work, now the first valve port A and the 3rd valve port C of commutation assembly 6 is even
Logical, the second valve port B and the 4th valve port D connection.
It is flowed into gas-liquid from the high pressure gaseous coolant of air vent 11 discharge of compressor 1 by the first inlet/outlet pipe 72 to divide
In device 7, the gaseous coolant after gas-liquid separation is flowed in outdoor heat exchanger 2 from the second inlet/outlet pipe 73, in outdoor heat exchanger 2
High Temperature High Pressure coolant carries out heat exchange to be formed as the liquid refrigerants of middle temperature high pressure, from the coolant of outdoor heat exchanger 2 discharge with extraneous
Expanding into gas-liquid mixture phase through restricting element 4, the coolant of this gas-liquid mixture phase enters in target heat exchanger 3, to steam
Send out heat absorption and target heat exchanger 3 is freezed.Coolant heat absorption evaporation forms gaseous coolant, and gaseous coolant is from the gas returning port of compressor 1
12 flow back in compressor 1, complete kind of refrigeration cycle.
When source pump 100 needs to carry out heating work, now the first valve port A and the 4th valve port D of commutation assembly 6 is even
Logical, the second valve port B and the 3rd valve port C connection.
Sequentially entering target heat exchanger 3 from the coolant of the High Temperature High Pressure of air vent 11 discharge of compressor 1, coolant is put
Heat condensation forms the liquid refrigerants of middle temperature high pressure.Liquid refrigerants flows to restricting element 4 and throttles, and the coolant after throttling flows into outdoor and changes
The heat absorption evaporation of hot device 2, the coolant of outdoor heat exchanger 2 flows into from the second inlet/outlet pipe 73 and carries out gas-liquid separation gas-liquid separator 7, point
The gaseous coolant separated out flows back to compressor 1 eventually through commutation assembly 6.
By foregoing description it can be seen that when source pump 100 is freezed, gas-liquid separator 7 is positioned at the high pressure of system
Side, it is ensured that entering the flow velocity of gas mixture in gas-liquid separator 7, gas-liquid separator 7 improves the gas draining into outdoor heat exchanger 2
The purity of state coolant.
And when source pump 100 is converted to heating operation by refrigerating operaton, the gas-liquid mixed flowed out from outdoor heat exchanger 2
Containing a large amount of liquid refrigerants in thing, too much liquid refrigerants can cause the liquid hammer to compressor 1, and therefore arranging gas-liquid separator 7 has
It is beneficial to retain a large amount of liquid refrigerants, protects compressor 1.
In a word, source pump 100 according to embodiments of the present invention, by setting between commutation assembly 6 and outdoor heat exchanger 2
Put the gas-liquid separator 7 of the embodiment of the present invention, thus oily component efficiency when unit freezes can be improved, solve unit and exit defrosting
Or the band liquid problem during operation of refrigeration mode transformation of ownership heat pattern, reduce step down side loss, promote unit refrigerating capacity and efficiency.
It is understood that for some Air-Cooled Heat Pump Unit, it is only necessary to exit defrosting or the refrigeration mode transformation of ownership at unit
Just use gas-liquid separator 7 when heat pattern is run, enter defrosting and/or heating mode uses other method when turning refrigeration mode operation
Avoid compressor air suction band liquid.Such gas-liquid separator 7 is arranged between finned heat exchanger and four-way change-over valve, so exists
During refrigerating operaton, gas-liquid separator 7 is positioned at high-pressure side, and low-pressure side, without gas-liquid separator 7, decreases the damage of unit low-pressure side
Lose, promote unit refrigerating capacity and efficiency.
In certain embodiments, as it is shown on figure 3, target heat exchanger 3 is water-side heat, it is cold that water-side heat has first
Matchmaker's interface the 311, second coolant interface 312 and the 3rd coolant interface 313, the first coolant interface 311 connects with the 4th valve port D, the
Two coolant interfaces 312 are connected with restricting element 4 respectively with the 3rd coolant interface 313.
Specifically, source pump 100 also includes: the first check valve 81 and the second check valve 82, the first check valve 81 is located at
So that coolant is located at joint to water-side heat one-way flow, the second check valve 82 between restricting element 4 and the second coolant interface 312
So that coolant is to restricting element 4 one-way flow between fluid element 4 and the 3rd coolant interface 313.
In a specific embodiment, water-side heat includes: shell 31 and heat exchanger tube, limits chamber in shell 31,
The first coolant interface the 311, second coolant interface 312 and the 3rd coolant interface 313, shell 31 of chamber it is communicated with on shell 31
On be additionally provided with water inlet 314 and outlet 315, heat exchanger tube is located in shell 31, heat exchanger tube respectively with water inlet 314 and outlet
315 are connected.
Wherein, according to the characteristic of shell-and-tube heat exchanger, the second coolant interface 312 is located at shell 31 top, and the second coolant connects
Mouth 312 is gas-liquid mixed state refrigerant inlet, and the 3rd coolant interface 313 is located at bottom shell 31, and the 3rd coolant interface 313 is liquid
Refrigerant exit.
Water-side heat is used for connecting the outlet 315 of user's heat exchanger, the entrance of user's heat exchanger and water-side heat
Connection, the outlet of user's heat exchanger connects with the water inlet 314 of water-side heat, and water pump is connected to water-side heat and changes with user
Between hot device, water pump water in driving user's heat exchanger is circulated flowing with the water in water-side heat, thus by water
In the heat exchanger of side, the cold of coolant transfers to user's requisite space.
In certain embodiments, as it is shown on figure 3, gas returning port 12 phase of the oil return opening 702 of gas-liquid separator 7 and compressor 1
Even, so, after rationally arranging oil return opening 702, gas-liquid separator 7 separates through fluid, can be passed through by isolated lubricating oil
Oil return opening 702 feeds back in compressor 1.It is the simplest that oil return is so set.
Specifically, as it is shown on figure 3, be connected between the oil return opening 702 of gas-liquid separator 7 and the gas returning port 12 of compressor 1 and have
Control valve 9, thus improve the controllability of oil return.
Alternatively, control valve 9 is electromagnetic valve.
Referring to Fig. 3, the structure and working principle of source pump 100 in one concrete example is described.
This source pump 100 has two kinds of operational modes, includes nine critical pieces.Critical piece is respectively the heat exchange of water side
Device, two check valves, compressor 1, electric expansion valve, finned heat exchanger, blower fan 21, cross valve, electromagnetic valve, multifunctional gas-liquids divide
From device 7.
Detailed description of the invention:
During unit operation refrigeration, circulation process is: compressor 1 → cross valve → multifunctional gas-liquid separator 7 → fin changes
Hot device → electric expansion valve → water-side heat → cross valve → compressor 1.When unit operation heats, circulation process is: compression
Machine 1 → cross valve → water-side heat → electric expansion valve → finned heat exchanger → multifunctional gas-liquid separator 7 → cross valve →
Compressor 1.
The main operational principle of native system is: multifunctional gas-liquid separator 7 is positioned over the finned heat exchanger of source pump 100
And between cross valve.(working by kind of refrigeration cycle flow process) when defrosting or refrigerating operaton, the high temperature refrigerant that compressor 1 aerofluxus comes leads to
Crossing multifunctional gas-liquid separator 7 and enter finned heat exchanger defrosting, the lubricating oil after separation returns to muffler by capillary tube.Defrosting
Exiting when switching to heating operation (by heating circulation process work), a large amount of liquid refrigerants of finned heat exchanger passes through multifunctional gas-liquid
Separator 7, after gaseous state separates with liquid refrigerants, returns to cross valve, and lubricating oil and liquid refrigerants after separation are returned by capillary tube
To muffler.
Helical-lobe compressor 1 is because of its intrinsic structure and construction features, and when few band liquid, coolant may be compressor 1 oil groove
In oil take away, bearing have oil starvation damage risk；During a large amount of band liquid, be likely to result in screw rod hydraulic compression, make between screw rod screw rod with
Between compressor housing, friction generation high temperature seizes.When exiting defrosting, the multifunctional gas-liquid separator 7 in this gas system is in a large number
Gas-liquid mixed coolant sufficiently separate, ensured the safe operation of compressor 1.During refrigerating operaton, in cold preparation
Lubricating oil carries out secondary separation, it is ensured that the normal oil return of unit.And while realizing both the above function, the system of simplifying sets
Meter, improves efficiency and the refrigerating capacity of unit.
Source pump 100 according to embodiments of the present invention, merges secondary oil separator with gas-liquid separator 7, simplifies
System designs, and brings the benefit of following several aspect:
1) reduction heats high-pressure side loss, promotes unit and heats efficiency.
In the source pump of the present invention, during heating operation, coolant is discharged from water-side heat bottom, there is not oil return and asks
Topic.Compressor 1 needs not move through oil and grades other parts, and high side pressure loss reduces, and pressure at expulsion reduces, under units consumption
Fall.
2) reduce refrigeration step down side loss, promote unit refrigerating capacity and efficiency.
In the source pump of the present invention, it is only necessary to when unit exits defrosting or refrigeration mode transformation of ownership heat pattern runs
Use gas-liquid separator 7, enter defrosting and/or heating mode turns when refrigeration mode runs with making its method avoid compressor 1 to inhale
Gas carrying liquid.Multifunctional gas-liquid separator 7 is arranged between finned heat exchanger and cross valve, when refrigerating operaton, gas-liquid separation
Device 7 is positioned at high-pressure side, and low-pressure side, without gas-liquid separator 7, decreases the loss of unit low-pressure side, promote unit refrigerating capacity and
Efficiency.
3) oily component efficiency during unit refrigerating operaton is promoted
The full liquid of this Air-Cooled Heat Pump Unit 100 employing or falling-film heat exchanger, because of heat exchanger structure particularity, in refrigeration fortune
During row, heat exchanger oil return has difficulties.Native system still divides function with secondary oil when refrigeration, promotes oil component efficiency further,
Reduce lubricating oil as far as possible and enter vaporizer.
In describing the invention, it is to be understood that term " " center ", " length ", " highly ", " on ", D score, " perpendicular
Directly ", orientation or the position relationship of the instruction such as " level ", " top ", " end ", " interior ", " outward ", " axially " is based on side shown in the drawings
Position or position relationship, be for only for ease of and describe the present invention and simplify description rather than instruction or the device of hint indication or unit
Part must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.
In describing the invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ",
" fix " and should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be machinery
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two elements
Internal connection or the interaction relationship of two elements.For the ordinary skill in the art, can be with concrete condition
Understand above-mentioned term concrete meaning in the present invention.
In the description of this specification, the description of reference term " embodiment ", " example " etc. mean to combine this embodiment or
Specific features, structure, material or feature that example describes are contained at least one embodiment or the example of the present invention.At this
In description, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, description concrete
Feature, structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
These embodiments can be carried out multiple change in the case of departing from the principle of the present invention and objective, revise, replace and modification, this
The scope of invention is limited by claim and equivalent thereof.
Claims (10)
1. a gas-liquid separator, it is characterised in that including:
Housing, the inner chamber of described housing includes disengagement chamber, and described disengagement chamber forms the turned cavities vertically extending with axis
Body, the bottom of described housing is communicated with the oil return opening of described disengagement chamber；
First inlet/outlet pipe, described first inlet/outlet pipe connect on the housing, and described first inlet/outlet pipe tangentially with institute
State disengagement chamber to be connected to form connected entrance；
Second inlet/outlet pipe, described second inlet/outlet pipe connects on the housing, and described second inlet/outlet pipe is from the top of described housing
End extend into described interior intracavity, and the mouth of pipe stretching into described inner chamber of described second inlet/outlet pipe is positioned at the lower section of described connected entrance.
Gas-liquid separator the most according to claim 1, it is characterised in that described second inlet/outlet pipe stretch into described inner chamber
Pipeline section height is more than or equal to the maximum inner diameter of described inner chamber.
Gas-liquid separator the most according to claim 1, it is characterised in that described housing is formed as prismatic pipe.
Gas-liquid separator the most according to claim 3, it is characterised in that described second inlet/outlet pipe stretch into described inner chamber
Pipeline section is formed as the pipe coaxial with described housing.
Gas-liquid separator the most according to claim 1, it is characterised in that described connected entrance sets adjacent to the top of described housing
Put.
Gas-liquid separator the most according to claim 1, it is characterised in that the central axis of described first inlet/outlet pipe is with described
The axis perpendicular of housing.
Gas-liquid separator the most according to claim 1, it is characterised in that described housing, described first inlet/outlet pipe and described
Second inlet/outlet pipe is respectively straight tube.
Gas-liquid separator the most according to claim 1, it is characterised in that described first inlet/outlet pipe and described second inlet/outlet pipe
It is respectively welded connection on the housing.
Gas-liquid separator the most according to claim 1, it is characterised in that when coolant flows into described from described first inlet/outlet pipe
Time in housing, the flow velocity of described coolant is more than or equal to 8m/s.
10. a source pump, it is characterised in that include according to the gas-liquid separator according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692238.4A CN106196776A (en) | 2016-08-19 | 2016-08-19 | Gas-liquid separator and there is its source pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692238.4A CN106196776A (en) | 2016-08-19 | 2016-08-19 | Gas-liquid separator and there is its source pump |
Publications (1)
| Publication Number | Publication Date |
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| CN106196776A true CN106196776A (en) | 2016-12-07 |
Family
ID=57523050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610692238.4A Pending CN106196776A (en) | 2016-08-19 | 2016-08-19 | Gas-liquid separator and there is its source pump |
Country Status (1)
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| CN107525313A (en) * | 2017-07-28 | 2017-12-29 | 广东美芝制冷设备有限公司 | Flash vessel and there is its air-conditioning system |
| WO2019053444A1 (en) * | 2017-09-18 | 2019-03-21 | J & E Hall Limited | Oil separator |
| CN110050164A (en) * | 2016-12-05 | 2019-07-23 | 富士通将军股份有限公司 | Gas-liquid separator and the air-conditioning device for having the gas-liquid separator |
| CN111692784A (en) * | 2019-03-15 | 2020-09-22 | 浙江三花智能控制股份有限公司 | Gas-liquid separator |
| CN112484180A (en) * | 2019-09-11 | 2021-03-12 | 广东美的白色家电技术创新中心有限公司 | Air conditioner |
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Application publication date: 20161207 |