CN1752612A - Air conditioner - Google Patents
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- CN1752612A CN1752612A CN 200410072119 CN200410072119A CN1752612A CN 1752612 A CN1752612 A CN 1752612A CN 200410072119 CN200410072119 CN 200410072119 CN 200410072119 A CN200410072119 A CN 200410072119A CN 1752612 A CN1752612 A CN 1752612A
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Abstract
The present invention provides an air conditioner. It includes the following several portions: storage tank, several compressors, oil separator, oil return pipe and oil-homogenizing pipe. Said invention also provides the concrete function and action of the above-mentioned every portion and their connection mode.
Description
Technical field
The present invention is the invention of relevant air-conditioner, and particularly relevant air-conditioner with a plurality of compressors is kept the air-conditioner of compressor internal lubrication oil mass.
Background technology
Air-conditioning is to carry out heat exchange with it with the low temperature refrigerant behind the interior hot-air of a kind of suction chamber, and heat-exchanged air is arranged to indoor equipment.Air-conditioning freezes to indoor by carrying out said process repeatedly, perhaps by carrying out the operation heating room air opposite with said process.Air-conditioning is made up of compressor-condenser-expansion valve-evaporimeter, forms a kind of loop.
The air-conditioning of additional functions such as air filtering function and dehumidification function has also appearred having on the market recently.This air-conditioning can filter behind outdoor suction room air, discharges clean air.After also can sucking humid air, dehumidify, discharge dry air.
As everyone knows, air-conditioning can be divided into a branch bodily form air-conditioning and a bodily form air-conditioning substantially.Divide the indoor set and the off-premises station of bodily form air-conditioning separate, and be arranged at indoor and outdoors respectively.The indoor set of one bodily form air-conditioning and off-premises station form one.
Recently, in one family, need to be provided with more than two air-conditioning or when having that every office all needs air-conditioning is set in the building of office between many, central air-conditioning is set usually.This central air-conditioning connects a plurality of indoor sets on an off-premises station, its effect is identical with the effect that a plurality of indoor sets are set.
Fig. 1 is provided with view for traditional central air-conditioning, and Fig. 2 is the block diagram of conventional central air conditioner structure and refrigerant flow regime.As shown in the figure, off-premises station 1 is made up of compressor 10, storage tank 20 and outdoor heat converter.Indoor set 50 is made up of indoor heat converter 60 and expansion valve 70 etc.
In this central air-conditioning, be connected with many indoor sets 50 on the off-premises station 1.Be provided with the lower low-voltage tube 90 of built-in pressure ratio higher high-voltage tube 80 and internal pressure between off-premises station 1 and the indoor set 50.
Air-conditioning with said structure, when freezing operation, the outdoor heat converter 30 of off-premises station 1 makes the HTHP gaseous coolant generation condensation of compressor 10 supplies as condenser working.When the refrigerant of condensation is flowed through expansion valve 70, be inflated into the gaseous state of low-temp low-pressure, flow to indoor heat converter 60.
Along with carrying out heat exchange with room air, the refrigerant of inflow indoor heat exchanger 60, the two-phase refrigerant that is transformed into the gas-liquid of low-temp low-pressure gradually and deposits, this refrigerant flow to compressor 10 after flowing through storage tank 20 again, finish a loop kind of refrigeration cycle of refrigerant thus.
Below, to air-conditioning heat the effect describe.The flow direction of refrigerant and the effect of the heat exchanger situation during with above-mentioned refrigeration is opposite.That is, the refrigerant of compressor 10 compression press storage tank 20-〉outdoor heat converter 60-〉expansion valve 70-〉order of outdoor heat converter 30 is mobile.
Here, indoor heat converter 60 makes and flows through its inner HTHP refrigerant and room air carries out heat exchange, plays the condenser effect.Outdoor heat converter 30 makes its inner low-temp low-pressure refrigerant and outdoor air carry out heat exchange, plays the evaporimeter effect.
Fig. 3 is conventional outdoor unit 1 schematic diagram to Fig. 6, and as shown in the figure, its below is formed with chassis 2, a plurality of parts are installed on the chassis 2, the front end on chassis 2 is provided with the front panel 4 that forms front appearance, and front panel 4 is by the positive lower panel 4 of the front upper panel 4 ' and the downside of upside " form.
Positive lower panel 4 " on, be provided with pipe arrangement support 4 " a.That is, positive lower panel 4 " the bottom be cut open a part, and with pipe arrangement support 4 " a sealing part of cutting.Pipe arrangement support 4 " setting of a guiding high-voltage tube 80 and low-voltage tube 90, they are communicated with indoor set 50.
Front upper panel 4 ' and positive lower panel 4 " between be provided with central bracket 6, its installation of leading.The upper end of front upper panel 4 ' also is provided with upper bracket 6 ', and upper bracket 6 ' goes up the front end of assembling motor seat 48 '.
The left and right sides side of front panel 4, promptly the front end left and right sides bight on chassis 2 is provided with preceding square bearer 8.Before square bearer 8 be provided with by above-below direction rectangularly, front panel 4 and side grid 34 are supported.
One side of compressor 10 is respectively equipped with separator 12, and separator 12 separates lubricating oil from the refrigerant that compressor 10 is discharged, reclaim to compressor 10.
Separator 12 has cylindrical housing (figure slightly), and shell (figure slightly) inside is provided with mesh screen (mesh) (figure slightly), and the upper and lower of mesh screen (figure slightly) is provided with upper plate (figure slightly) and the lower plate (figure slightly) that supports mesh screen (figure slightly).
When refrigerant that the bottom by shell flows into and lubricating oil flow through mesh screen, lubricating oil was trapped, and gaseous coolant is discharged from by the upper end of shell.The lubricating oil of being held back by mesh screen flows back to compressor 10 again by being formed on the oil return pipe 13 of separator 12 lower ends.
One end of oil return pipe 13 is provided with capillary 13a, capillary 13a and control irrelevant, keep all the time and hold, and prevent adverse current to separator 12 from a certain amount of lubricating oil of separator 12 supplies.
In addition, constant speed compressor 10 ' and variable speed compressor 10 " between, being provided with even oil pipe 15, even oil pipe 15 can make the fuel feeding of each compressor 10 even.Constant speed compressor 10 ' carries out work, variable speed compressor 10 " during low-frequency operation, need more lubricants capacity as constant speed compressor 10 ', then by even oil pipe 15, variable speed compressor 10 " lubricating oil draw use.
In addition, constant speed compressor 10 ' carries out work, variable speed compressor 10 " when high frequency moves, as variable speed compressor 10 " need more lubricants capacity, then, the lubricating oil of constant speed compressor 10 ' is drawn use by even oil pipe 15.
2 left side rearward end is provided with valve brace table 14 by certain altitude on the chassis.The upper end of valve brace table 14 is respectively equipped with and fills low temperature valve 16.
The central portion on chassis 2, that is, and constant speed compressor 10 ' and variable speed compressor 10 " between, be provided with storage tank 20.Storage tank 20 is held back liquid refrigerants, only allows gaseous coolant flow into compressor 10.
The upside of compressor 10 is provided with control cabinet 22.In the control cabinet 22, be provided with control assembly and circuit boards such as transformer and electric capacity, control cabinet 22 has the shape of the open cuboid carton in the place ahead, and its front is provided with control part cover 22 ', the closed interior space.
The side end on chassis 2 and rearward end are provided with outdoor heat converter 30.Outdoor heat converter 30 makes and is flowing in its inner refrigerant and extraneous air carries out heat exchange, is located at left and right sides in pairs.’
Promptly the left side is provided with " " shape (when overlooking) left side outdoor heat converter 30 ', and the right side is provided with " " shape right side heat exchanger 30 ".The inlet of outdoor heat converter 30 is provided with the body assembly 32 that the water conservancy diversion refrigerant flows into, and outlet is provided with receiver 33.
The left-hand end on chassis 2 and right-hand end are provided with side grid 34, and the rear end is provided with back side grid 36.The quantity of back side grid 36 is a pair of, and is corresponding with outdoor heat converter 30.That is, back side grid 36 is by the back side, the left side grid 36 ' and the right side heat exchanger 30 that are arranged on outdoor heat converter 30 ' rear, left side " back side, the right side grid 36 at rear " form.
Left side back side grid 36 ' and the back side, right side grid 36 " between be provided with the fixedly back side framework 38 of back side grid 36, the left and right sides bight, rear end of base 2 is formed with square bearer 38 ' afterwards respectively.
The end face outward appearance of off-premises station 1 is formed by top panel 40.Top panel 40 has the rectangular flat shape corresponding with chassis 2, and the left and right sides of the heart is formed with a pair of passage 40 ' therein.
The end face of passage 40 ' is provided with flow-guiding mouth 42, and flow-guiding mouth 42 has the drum that projects upwards, and the air that water conservancy diversion is discharged by blowing fan 46 flows.The top of flow-guiding mouth 42 is provided with discharges grid 44.
The inboard of flow-guiding mouth 42 is provided with blowing fan 46, and blowing fan 46 is rotated under fan motor 48 effects of bottom, works to discharge air, and fan motor 48 is arranged on the motor cabinet 48 '.
But, when the constant speed compressor 10 ' of conventional art air-conditioner outdoor unit 1 carries out work, variable speed compressor 10 " also during low-frequency operation, can make too much lubricating oil be fed to powerful constant speed compressor 10 '; at this moment, can make variable speed compressor 10 by even oil pipe 15 " lack lubricating oil.
That is, can not be by the running status of each compressor 10, balancedly supply lubricating oil makes the part compressor that the phenomenon of lubricating oil take place to lack, and then damages compressor 10, shortens the compressor life-span.
Summary of the invention
In order to address the above problem, purpose of the present invention is kept the equilibrium of the lubricants capacity of compressor chamber for a kind of compressor is provided, and prevents the deflection part compressor that lubricating oil is too much, and it is impaired to prevent to make compressor thus, improves the functional reliability of compressor.
To achieve these goals, the technical solution used in the present invention provides a kind of air-conditioner, the a plurality of compressors, the separator of from cold coal, isolating lubricating oil, oil return pipe and the even oil pipe that include storage tank that cold coal is separated, cold coal is compressed, wherein: the lower end of described separator is provided with the oil return pipe of isolated lubricating oil being guided into a plurality of compressors, is provided with to regulate its lubricating oil supply and make it the even oil pipe of balance between a plurality of compressors.
Described a plurality of compressor is to be made of with the variable speed compressor that can regulate rotating speed the constant speed compressor by certain rotating speed rotation.
Described oil return pipe is connected with separator and constant speed compressor, and described separator is connected with variable speed compressor again.
Described oil return pipe is connected with separator and variable speed compressor, and described separator is connected with constant speed compressor again.
One end of described oil return pipe is provided with the capillary of anti-adverse current.
One end of described even oil pipe is provided with the check valve of control lubricating oil one-way flow.
Effect of the present invention is to have in the air-conditioner that as above constitutes, the outlet of oil return pipe is communicated with the compressor of opposite side, after flowing to the compressor of opposite side from the isolated lubricating oil of separator, again by being communicated with even oil pipe at compressor chamber, stream send the lubricating oil that surpasses required part, make lubricating oil carry out the circulation of whole system inside, can keep the balance of the lubricating oil of each compressor chamber, prevent certain compressor of the too much deflection of cold coal, above-mentioned compressor can be prevented to damage thus, the reliability of above-mentioned compressor can be improved.
Even oil pipe makes lubricating oil carry out the integral body circulation, and make the lubricating oil of compressor chamber keep equilibrium, variable speed compressor and constant speed compressor are kept impartial lubricants capacity all the time thus, particularly variable speed compressor is kept balanced pasta all the time, and then under various service conditions, also can keep balanced pasta.Can prevent because of oil starvation, make compressor impaired, and then improve air-conditioner functional reliability and durability.
Description of drawings
Fig. 1 is provided with view for traditional central air-conditioning;
Fig. 2 is the block diagram of conventional central air conditioner structure and refrigerant flow regime;
Fig. 3 is the schematic appearance of traditional air-conditioner outdoor unit;
Fig. 4 is the decomposing schematic representation of traditional air-conditioner outdoor unit;
Fig. 5 is the even oil system schematic diagram of the air-conditioner of conventional art;
Fig. 6 is the internal structure front view behind the dismounting front panel of traditional air-conditioner outdoor unit;
Fig. 7 is provided with view for air-conditioning of the present invention;
Fig. 8 is the block diagram of central air-conditioning structure of the present invention and refrigerant flow regime;
Fig. 9 is an air-conditioner outdoor unit schematic appearance of the present invention;
Figure 10 is an air-conditioner outdoor unit pie graph of the present invention;
Figure 11 is an air-conditioner outdoor unit internal structure decomposing schematic representation of the present invention;
Figure 12 is the even oil system block diagram of air-conditioner of the present invention;
Figure 13 is the internal structure front view behind the air-conditioner dismounting front panel of the present invention.
Among the figure:
100: off-premises station 102: outdoor magnetic valve
110: chassis 112: front panel
114: front grid 116: the front upper support
120: constant speed compressor 120 ': variable speed compressor
120a: coolant injection device 121: even oil pipe
121a: check valve 123a: capillary
121 ': even oil pipe temperature sensor 122: separator
123: oil return pipe 124: cross valve
126: valve brace table 128: fill low temperature valve
130: supercooling machine 130 ': the loopback pipe
130 ' a: supercooling expansion valve 132: storage tank
134,134 ': front-side frame 136: central frame
140: left side control cabinet 140 ': the right side control cabinet
142: transformer 144: electric capacity
146: heater element plate 150: baffle plate
152: air conducting hole 154: the air conducting cover
160: top panel 162: passage
164: flow-guiding mouth 166: discharge grid
170: blowing fan 172: the fan motor
174: motor cabinet 180: outdoor heat converter
182: front heat exchanger 184: back side heat exchanger
186: drain pan 188: side panel
190: back side grid 192: back panel
194: upper rear portion support 196: the back square bearer
200: indoor set 210: common liquid pipe
210 ': branch's liquid pipe 210 ": outdoor liquid pipe
212: common tracheae 212 ': divide bronchus
212 ": outdoor tracheae 214: high-low pressure is managed jointly
146 ': radiating part 148: heat emission fan
202: indoor heat converter 204: expansion valve
206: the indoor electric magnet valve
The specific embodiment
Below, with reference to drawings and Examples air-conditioner of the present invention is elaborated.
Fig. 7 is provided with view for air-conditioning of the present invention, and Fig. 8 is the block diagram of central air-conditioning structure of the present invention and refrigerant flow regime.As shown in the figure, off-premises station 100 is by constant speed compressor 120, variable speed compressor 120 ', storage tank 132, outdoor heat converter 180 and outdoor magnetic valve 102 compositions such as (LEV abbreviate outdoor LEV below as).Indoor set 200 is by indoor heat converter 202, expansion valve 204 and indoor electric magnet valve 206 compositions such as (LEV abbreviate indoor LEV below as).
In the central air-conditioning, on one or more off-premises station 100, connecting a plurality of indoor sets 200.Be provided with between off-premises station 100 and the indoor set 200 as the common liquid pipe 210 of single pipe arrangement and as the common tracheae 212 of single pipe arrangement.The liquid refrigerants that circulating in the common liquid pipe 210, and common tracheae 220 internal circulations gaseous coolant.In order to keep the equilibrium of refrigerant, between the plural off-premises station 100, be provided with the common pipe 214 of the high-low pressure that is communicated with each off-premises station.
The common pipe 214 of high-low pressure is communicated with the inlet of each outdoor heat converter 180 of many off-premises stations 100, can keep off-premises station 100 refrigerant equilibrium each other.Thereby make same obsolete off-premises station 100 heat exchangers 180 that flow in many off-premises stations 100 of refrigerant, can improve the overall thermal exchange efficiency.The common pipe of high-low pressure 214 inside are by freezing or heat, circulation high pressure or low pressure refrigerant.
On the indoor set 200, be respectively equipped with the branch's liquid pipe 210 ' of circulation liquid refrigerants and the branch bronchus 212 ' of circulation gaseous coolant.This branch liquid pipe 210 ' and branch bronchus 212 ' are communicated with common liquid pipe 210 and common tracheae 212.
Many branch's liquid pipes 210 ' and divide the diameter of bronchus 212 ' have nothing in common with each other by indoor set 200 capacity that connect.By indoor LEV206,, regulate the cold coal supply of each indoor set 200.
Off-premises station 100 is formed with the outdoor liquid pipe 210 of circulation liquid refrigerants " and the outdoor tracheae 212 of the gaseous coolant that circulates ".This outdoor liquid pipe 210 " and outdoor tracheae 212 " be communicated with above-mentioned common liquid pipe 210 and common tracheae 212.
Fig. 9 is a central air-conditioning off-premises station structural representation of the present invention to Figure 13, and as shown in the figure, the chassis 110 that forms the bottom surface is arranged on bottom, supports various parts.The front end on this chassis 110 is provided with the front panel 112 that forms positive basifacial outward appearance.
The upside of front panel 112 is provided with front grid 114, sucks extraneous air by front grid 114, and allows air pass through outdoor heat converter 180.The upside of front grid 114 also is provided with front upper support 116.And the below of front upper support 116, the leading section of assembling motor seat 174.
The end face on chassis 110 is provided with compressor 120,120 '.Compressor 120,120 ' is compressed into high-temperature high-pressure state to refrigerant, and two or more are set respectively on demand.
Compressor 120,120 ' is separately positioned on the both sides of storage tank 132.That is, the right side is provided with the constant constant speed compressor of rotating speed 120, and the left side is provided with the variable speed compressor 120 ' as variable-ratio heat pump (Variable Speed Heat Pump).
Compressor 120,120 ' entrance side are provided with coolant injection device 120a.Coolant injection device 120a presses compressor 120,120 ' operation conditions, if superheating phenomenon then prevents the damage of compressor by the supply refrigerant.Refrigerant used herein is the refrigerant of discharging from following outdoor heat converter 180.
Between constant speed compressor 120 and the variable speed compressor 120 ', be provided with even oil pipe 121, be communicated with constant speed compressor 120 and variable speed compressor 120 '.
In addition, an end of even oil pipe 121 is provided with check valve 121a.Prevent the lubricating oil of variable speed compressor 120 ' thus, adverse current lacks lubricating oil as variable speed compressor to constant speed compressor 120, then the lubricating oil of constant speed compressor 120 is added to variable speed compressor 120 ', prevents from that lubricating oil lacks to bring damage.
Usually use the turbo-compressor of low noise efficient rate as compressor 120,120 ', variable speed compressor 120 ' is by bearing power, regulates the variable speed turbine compressor of its rotating speed.Use minority indoor set 200, under the low state of bearing power, at first can start variable speed compressor 120 '.If bearing power increases gradually, can't carry out required operation with variable speed compressor 120 ', then start constant speed compressor 120.
The outlet side of constant speed compressor 120 and variable speed compressor 120 ' is respectively equipped with compressor discharge temperature sensor 120b, 120 ' b and separator 122.Compressor discharge temperature sensor 120b, 120 ' b are used to detect compressor 120, the 120 ' refrigerant temperature of discharging.Separator 122 separates lubricating oil from above-mentioned compressor 120, the 120 ' refrigerant of discharging, compressor 120,120 ' is reclaimed.
That is, when compressor 120,120 ' work, can produce frictional heat, cause temperature to rise.Therefore, utilize the lubricating oil cooling compressor, the part in the lubricating oil can be discharged from by compressor 120,120 ' outlet with refrigerant, separator 122 the lubricating oil separation in the refrigerant after, make it pass through oil return pipe 123 and reclaim.
The outward appearance of separator 122 is formed by shell (figure slightly), and the inside of shell (figure slightly) is provided with mesh screen (figure slightly).The top and the bottom of mesh screen are provided with upper plate (figure slightly) and lower plate (figure slightly), support mesh screen.Separated by a certain interval downwards from lower plate, be provided with oily filter core (figure is slightly), the foreign matter in the lubricating oil is filtered.
The upper end of separator 122 is formed with the pipe arrangement of discharging the cold coal after separating, and the lower end is provided with the oil return pipe 123 of isolated lubricating oil being guided into opposite side compressor 120,120 '.
One end of oil return pipe 123 is formed with capillary 123a, no matter which kind of state of a control of capillary 123a remains from a certain amount of lubricating oil of separator 122 supplies, and prevents that the lubricating oil adverse current is to separator 122.
The outlet side of separator 122 also is provided with check valve 122 ', prevents the refluence of refrigerant.That is, when having only some in constant speed compressor 120 or the variable speed compressor 120 ' to carry out work, prevent that refrigerant from pouring in down a chimney to compressor 120, the 120 ' inside that is in halted state.
After the refrigerant that constant speed compressor 120 and variable speed compressor 120 ' are discharged is flowed to a position, flow to cross valve 124.The inlet of this cross valve 124 is provided with high pressure sensor 124 '.High pressure sensor 124 ' is used to detect compressor 120,120 ' the refrigerant pressure of discharging.
In addition, cross cross valve 124 and be provided with heating pipe 125.Under the effect of heating pipe 125, from the refrigerant of separator 122 inflow cross valves 124, some flows directly into storage tank 132.
When air-conditioning carries out work, improve the low pressure refrigerant pressure that flows into storage tank 132 if desired, then pass through heating pipe 125, directly feed to compressor 120,120 ' the high pressure refrigerant of compressor 120,120 ' discharge oral-lateral.Heating pipe 125 is provided with hot-blast valve 125 ', and hot-blast valve 125 ' is a kind of effluent valve.
The top first half central authorities on chassis 110 are provided with valve brace table 126, and valve brace table 126 is used for liquid pipe 210 outside the supported chamber ", outdoor tracheae 212 " and the common pipe 214 of high-low pressure.Service valve 128 also is located on the valve brace table 126.In addition, passed, be connected with off-premises station 100 by the pipe arrangement gateway 188 ' of the pipe arrangement 210,212,214 of valve brace table 126 supports by side panel 188.
On the last left side of face rearward end on chassis 110, be provided with supercooling machine 130, supercooling machine 130 is the refrigerant that carries out in the above-mentioned heat exchanger 180 after the heat exchange, further cooling, be arranged on outdoor liquid pipe 210 " the optional position, outdoor liquid pipe 210 " be connected the outlet side of outdoor heat converter 180.
Supercooling machine 130 is by dual pipe setting, outdoor liquid pipe 210 " be positioned at the inboard, its outside is formed with loopback pipe 130 '.Loopback pipe 130 ' forms from the outlet branch of supercooling machine 130.Loopback pipe 130 ' is provided with the supercooling expansion valve 130 ' a by the cooling refrigerant that expands.
At this moment, from the refrigerant that supercooling machine 130 is discharged, some flows into loopback pipe 130 ', and is cooled when flowing through supercooling expansion valve 130 ' a.During the refrigerant backflow supercooling machine 130 of cooling, inboard refrigerant is further cooled off.Backflow refrigerant from supercooling machine 130 flows out flows to storage tank 132 again, circulates.
The outlet of supercooling machine 130 is provided with liquid pipe temperature sensor 130a.The refrigerant that liquid pipe temperature sensor 130a discharges off-premises station 100 carries out temperature detection.The outlet of supercooling expansion valve 130 ' a is provided with supercooling inlet sensor 130 ' b, to flowing into the backflow refrigerant of supercooling machine 130, carries out temperature detection.On the loopback pipe 130 ' of the backflow refrigerant that the supercooling machine 130 that circulating is discharged, be provided with supercooling outlet sensor 130 ' c.
Flow through the refrigerant of outdoor heat converter 180, by the central portion circulation, its outside reverse circulated and is inflated the low temperature refrigerant that valve (figure slightly) expands, and refrigerant temperature is reduced more.
One side of supercooling machine 130, the i.e. outdoor liquid pipe 210 of the refrigerant guiding indoor set 200 that outdoor heat converter 180 is discharged " a side, be provided with drying machine 131.Drying machine 131 is removed circulation at outdoor liquid pipe 210 " the moisture that contains of refrigerant.
The central portion on chassis 110 promptly between constant speed compressor 120 and the variable speed compressor 120 ', is provided with storage tank 132.Storage tank 132 is held back liquid refrigerants, only allows gaseous coolant flow to compressor 120,120 '.
That is, from the refrigerant that indoor set 200 flows into, do not flash to the liquid refrigerants of gaseous state,, then can increase compressor 120,120 ' load and might bring compressor 120,120 ' damage if be fed directly to compressor 120,120 '.
Flow in the refrigerant of storage tank 132 inside, do not flash to the liquid refrigerants of gaseous state, its proportion can be greater than gaseous coolant.Therefore liquid refrigerants can be stored in the bottom of storage tank 132, has only gaseous coolant to flow into compressor 120,120 ' inside.In addition, the entrance side of storage tank 132 is respectively equipped with the suction pipe arrangement temperature sensor 132 ' and the low pressure sensor 132 that detects refrigerant pressure to the refrigerant detected temperatures that sucks ".
The front end both sides on chassis 110, square bearer 134,134 ' before being formed with respectively.Before square bearer 134,134 ', be formed on the front end on chassis 110 by above-below direction rectangularly.Be divided into left forward side framework 134 that is located at left-hand end and the right forward side framework 134 ' that is located at right-hand end.
Preceding square bearer 134,134 ' is used to support front upper framework 116, front grid 114 and control cabinet 140,140 '.The central portion of left forward side framework 134 and right forward side framework 134 ' is formed with the central frame 136 on the left and right directions.
The rear lower of central frame 136 is provided with control cabinet 140,140 '.Control cabinet 140,140 ' is arranged in pairs in left and right sides.Promptly, control cabinet 140,140 ' is by left side control cabinet 140 that is arranged on the left side and the right side control cabinet 140 ' that is arranged on the right side, left side control cabinet 140 is fixed on the left forward side framework 134 by hinge 140a, and right side control cabinet 140 ' is fixed on the right forward side framework 134 ' by hinge 140 ' a.
Control cabinet 140,140 ' has the shape of the cuboid carton of front openings, and its place ahead is sealed by front panel 112.Left side control cabinet 140 is provided with the control assembly and the heater element plate 146 of transformer 142, electric capacity 144 in addition.
The back side of heater element plate 146 is provided with radiating part 146 ', and radiating part 146 ' is made up of fin.The upper end, the back side of left side control cabinet 140 is provided with heat emission fan 148.Heat emission fan 148 is made of axial flow fan.Heat emission fan 148 is upwards discharged after sucking air, accelerates the heat exchange of radiating part 146 ', cooling heating element plate 146.
Control cabinet 140,140 ' side are mounted respectively forwardly on the framework 134,134 ' by hinge 140a, 140 ' a, and hinge 140a, 140 ' a can be that the center is rotated forward with the rotating shaft.When needs carry out the maintenance of inner each parts, after control cabinet 140,140 ' rotated forward, carry out operation and get final product.
Central frame 136 is provided with baffle plate 150, baffle plate 150 is divided into upside space and lower side space to off-premises station 100 inner spaces, that is, compressor 120,120 ' and control cabinet 140, the 140 ' lower side space that waits and the upside space of outdoor heat converter 180 is set is set.
Identical with control cabinet 140,140 ', baffle plate 150 also is separately positioned on left and right sides.Baffle plate 150 is by horizontal part 150 ' and rake " form.Horizontal part 150 ' is formed on the rear of central frame 136, rake 150 " downward-sloping certain angle forms from the rear of horizontal part 150 '.
On the horizontal part 150 ' of the left side baffle plate 150 in the baffle plate 150, be formed with air conducting hole 152, and the upside in air conducting hole 152 is provided with air conducting cover 154.The place ahead and the top of air conducting cover 154 are in closed state, and its rear is in open state, and the air that the heat emission fan 148 of bottom blows, water conservancy diversion is to the rear.
The end face outward appearance of off-premises station 100 is formed by top panel 160, and top panel 160 has the rectangular flat structure, is formed on left and right sides in pairs.Top panel 160 is provided with passage 162.The edge of passage 162 forms cylindric flow-guiding mouth 164 after extending downwards.Flow-guiding mouth 164 is integrally formed on the top panel 160, is made for suitable by plastic material.
Flow-guiding mouth 164 has cylindrical shape, the air that blowing fan 170 blows, and outside water conservancy diversion.The upside of flow-guiding mouth 164 promptly on the passage 162, is provided with the circular row corresponding with passage 162 and goes out grid 166.
The inboard of flow-guiding mouth 164 is provided with blowing fan 170.Blowing fan 170 is driven by the fan motor 172 of its below, is used for air row upward.Externally under the effect of power supply, when being rotated, the blowing fan 170 that is fixed on fan motor 172 rotating shafts one end is rotated fan motor 172, air row upward.
Fan motor 172 is fixed by motor cabinet 174, and motor cabinet 174 is by the brace table 174 of rectangular flat shape fixed head 174 ' and support said fixing plate 174 ' " constitute.Brace table 174 " Cheng Shuan is formed on left and right sides.A pair of brace table 174 " central portion, fixed head 174 ' is installed.Brace table 174 " front-end and back-end be bent upwards, be separately fixed at front upper support 116 and upper rear portion support 194.
The bottom of top panel 160 is provided with outdoor heat converter 180, and outdoor heat converter 180 makes to flow through between inner refrigerant and the extraneous air and produces heat exchange.Be arranged in pairs in front and back.That is, outdoor heat converter 180 is by front heat exchanger 182 that is arranged on top panel 160 leading section downsides and the back side heat exchanger 184 that is arranged on top panel 160 rearward end downsides.
The Lower Half of front heat exchanger 182 is crooked backward, promptly, above-mentioned front heat exchanger 182 extends the vertical component effect 182 ' of certain-length downwards by the leading section from above-mentioned front panel 112 and is crooked backward from the lower end of above-mentioned vertical component effect 182 ', press the rake 182 that certain angle tilts " formation.
The inside of outdoor heat converter 180 is provided with the heat-exchanger temperature sensor 180a that detects heat exchanger temperature, and the outside of outdoor heat converter 180 is provided with the outdoor temperature sensor 180b that detects external temperature.
The lower end downside of outdoor heat converter 180 is provided with drain pan 186.Drain pan 186 is formed on the left and right directions rectangularly, after the condensed water of outdoor heat converter 180 generations is collected, discharges to the side.
The end face left-hand end and the right-hand end on chassis 110 are provided with side panel 188.Side panel 188 forms the side outward appearance of off-premises station 100.The front and back of its bottom are formed with pipe arrangement gateway 188 ' respectively.
The rear end on chassis 110 is provided with back side grid 190.The size of back side grid 190 is corresponding with back side heat exchanger 184.Change the downside of back side grid 190, be provided with back panel 192.
The upper end of back side grid 190 is formed with upper rear portion support 194 by left and right directions rectangularly.Upper rear portion support 194 is arranged on the front, upper end of back side grid 190, the brace table 174 of support motor seat 174 " rear end.
The back vertex angle part on chassis 110 is provided with back square bearer 196.Back square bearer 196 is located on the above-below direction rectangularly, supports back side grid 190, back panel 192 and top panel 160.
Below, with reference to accompanying drawing 8 to 13, the operation principle to central air-conditioning of the present invention is elaborated.
In the air-conditioning of the present invention, on an off-premises station 100, connect many indoor sets 200, can allow part or all indoor set 200 carry out work by user's selection.
When air-conditioning carried out work (refrigeration operation), outdoor LEV102 was open, and refrigerant flows between off-premises station 100 and indoor set 200.
At first, illustrate that the refrigerant in the off-premises station 100 flows.After the gaseous coolant of inflow off-premises station 200 flows through cross valve 124, flow to storage tank 132.The gaseous coolant that storage tank 132 is discharged flows to compressor 120,120 '.Feed to compressor 120,120 ' cold medium shortage or compressor 120,120 ' when overheated, by coolant injection device 120a supply refrigerant.
The refrigerant of compressor 120,120 ' compression is discharged to outlet, flows through separator 122.The lubricating oil that separator 122 separates in the refrigerant makes compressor 120,120 ' pass through oil return pipe 123 and reclaims.
That is, when compressor 120,120 ' compression refrigerant, can infiltrate parts of lubricating oil in the refrigerant.Lubricating oil is liquid, and refrigerant is a gaseous state.Therefore the separator 122 that can be used as a kind of gas-liquid separator separates.
In addition, connect under the effect of even oil pipe 121 of constant speed compressor 120 and variable speed compressor 120 ', both sides compressor 120,120 ' internal lubrication oil can be kept in balance.
During variable speed compressor 102 ' isolated operation, the lubricating oil of variable speed compressor 120 ', the i.e. lubricating oil that distributes by separator, flow into the suction side of constant speed compressor 120 by oil return pipe 123, the lubricating oil that surpasses aequum is delivered to variable speed compressor 120 ' by even oil pipe 121 stream again, guarantees that thus variable speed compressor 120 ' and constant speed compressor 120 keep suitable pasta.
Variable speed compressor 120 ' low-frequency operation, when constant speed compressor 120 also moves simultaneously, too much lubricating oil from constant speed compressor 120 discharges, deliver to variable speed compressor 120 ' by oil return pipe 123 streams, flow into the lubricating oil of variable speed compressor 120 ', by oil return pipe 123, stream is delivered to constant speed compressor 120 again.
At this moment, when the lubricants capacity of constant speed compressor 120 was on the high side, by even oil pipe 121, stream was delivered to variable speed compressor 120 ', keeps compressor 120 thus, the balance of the lubricating oil between 120 '.
In addition, the operation of variable speed compressor 120 ' high frequency, when constant speed compressor 120 also moved simultaneously, from the too much lubricating oil that variable speed compressor 120 ' is discharged, by oil return pipe 123, the suction that flow into constant speed compressor 120 was surveyed.In addition, when the lubricants capacity of inflow constant speed compressor 120 surpasses aequum, deliver to variable speed compressor 120 ', make compressor 120 thus, the pasta equalization of 120 ' inside by even oil pipe 121 streams.
In addition, be located at the check valve 121a of even oil pipe 121 1 ends,, control, prevent adverse current the lubricating oil that send by even oil pipe 121 streams.
By the cold coal of separator 122, through cross valve 124 inflow outdoor heat exchangers 180.Outdoor heat converter 180 plays condenser (during refrigeration), so cold coal and extraneous air carry out heat exchange, are cooled.By the cold coal of outdoor heat converter 180, during by supercooling machine 130, be further cooled.
Flow through the refrigerant of supercooling machine 130, flowing through is used to remove the drying machine 131 of refrigerant moisture, by common liquid pipe 210, flows into indoor set 200.In addition, flow through in compressor 120,120 ' the refrigerant, some also can flow into other off-premises stations 100 by the common pipe 214 of high-low pressure.
Be fed to the refrigerant of other off-premises stations 100, by the common pipe of high-low pressure 214 off-premises station 100 outdoor heat converters 180 that flow in stopping, allow the equilibrium that keep-ups pressure of whole refrigerant, and allow off-premises station 100 heat exchangers 180 in stopping also carry out to a certain degree heat exchange.
When by common liquid pipe 210 refrigerant being fed to indoor set 200, refrigerant is fed to each indoor set 200 respectively by each the branch's liquid pipe 210 ' from common liquid pipe 210 branches.Refrigerant reduces pressure under the effect of expansion valve 204, and carries out heat exchange in indoor heat converter 202.Here, indoor heat converter 202 plays evaporimeter, allows refrigerant become low-pressure gas by heat exchange.
From the refrigerant that indoor heat converter 202 is discharged, the branch bronchus 212 ' of flowing through collects in common tracheae 212, flows into off-premises station 100.Common tracheae 212 and outdoor tracheae 212 " flow into the refrigerant of off-premises station 100, flow to storage tank 132 by cross valve 124.
When heating operation, refrigerant by with the opposite direction of loop direction in the process of refrigerastion, circulate the indoor LEV206 of open chamber machine 200, and regulate coolant quantity by outdoor LEV102.
Below, the air flow condition to off-premises station describes.Along with connecting power supply, fan motor 172 carries out work, drives blowing fan 170.During blowing fan 170 rotations, extraneous air flows into by front grid 114 and back side grid 190.
Flow into the air of off-premises station 100 inside, when flowing through outdoor heat converter 180, carry out heat exchange.Here, when air-conditioning was worked as refrigeration machine, extraneous air absorbed heat from outdoor heat converter 180, becomes high temperature air.On the contrary, when air-conditioning was worked as the machine that heats, extraneous air was absorbed heats by outdoor heat converter 180, becomes Cryogenic air.
The air that flows through outdoor heat converter 180 is upwards blown out by force by blowing fan 170.At this moment, the discharge of flow-guiding mouth 164 diversion airs.
Right request scope of the present invention is not confined to the foregoing description.If have the personnel of industry ABC, then can in above-mentioned technical scope, can carry out a lot of changes.
Claims (6)
1, a kind of air-conditioner, the a plurality of compressors, the separator of from cold coal, isolating lubricating oil, oil return pipe and the even oil pipe that include storage tank that cold coal is separated, cold coal is compressed, it is characterized in that: the lower end of described separator (122) is provided with the oil return pipe (123) of isolated lubricating oil being guided into a plurality of compressors, is provided with to regulate its lubricating oil supply and make it the even oil pipe (121) of balance between a plurality of compressors.
2, air-conditioner according to claim 1 is characterized in that: described a plurality of compressors are by by the constant speed compressor (120) of certain rotating speed rotation and variable speed compressor (the 120 ') formation that can regulate rotating speed.
3, air-conditioner according to claim 2 is characterized in that: described oil return pipe (123) is connected with separator (122) and constant speed compressor (120), and described separator (122) is connected with variable speed compressor (120 ') again.
4, air-conditioner according to claim 2 is characterized in that: described oil return pipe (123) is connected with separator (122) and variable speed compressor (120 '), and described separator is connected with constant speed compressor (120) again.
5, according to claim 3 or 4 described air-conditioners, it is characterized in that: an end of described oil return pipe (123) is provided with the capillary (123a) of anti-adverse current.
6, air-conditioner according to claim 1 is characterized in that: an end of described even oil pipe (121) is provided with the check valve (121a) of control lubricating oil one-way flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410072119 CN1752612A (en) | 2004-09-24 | 2004-09-24 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410072119 CN1752612A (en) | 2004-09-24 | 2004-09-24 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1752612A true CN1752612A (en) | 2006-03-29 |
Family
ID=36679566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410072119 Pending CN1752612A (en) | 2004-09-24 | 2004-09-24 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1752612A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7775054B2 (en) | 2006-10-17 | 2010-08-17 | Lg Electronics Inc. | Air conditioner |
| CN103528141A (en) * | 2013-10-28 | 2014-01-22 | 深圳麦克维尔空调有限公司 | Split air conditioner and outdoor unit thereof |
| CN104848433A (en) * | 2014-02-14 | 2015-08-19 | 松下知识产权经营株式会社 | Outdoor Unit of Air-Conditioner |
| CN104848434A (en) * | 2014-02-14 | 2015-08-19 | 松下知识产权经营株式会社 | Outdoor Unit of Air Conditioner |
-
2004
- 2004-09-24 CN CN 200410072119 patent/CN1752612A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7775054B2 (en) | 2006-10-17 | 2010-08-17 | Lg Electronics Inc. | Air conditioner |
| CN103528141A (en) * | 2013-10-28 | 2014-01-22 | 深圳麦克维尔空调有限公司 | Split air conditioner and outdoor unit thereof |
| CN103528141B (en) * | 2013-10-28 | 2016-04-20 | 深圳麦克维尔空调有限公司 | A kind of split-type air conditioner and off-premises station thereof |
| CN104848433A (en) * | 2014-02-14 | 2015-08-19 | 松下知识产权经营株式会社 | Outdoor Unit of Air-Conditioner |
| CN104848434A (en) * | 2014-02-14 | 2015-08-19 | 松下知识产权经营株式会社 | Outdoor Unit of Air Conditioner |
| CN104848433B (en) * | 2014-02-14 | 2019-08-16 | 松下知识产权经营株式会社 | The outdoor unit of air conditioner |
| CN104848434B (en) * | 2014-02-14 | 2019-08-16 | 松下知识产权经营株式会社 | The outdoor unit of air conditioner |
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