CN1782627A - Variable liquid storage tank structure of air conditioner - Google Patents
Variable liquid storage tank structure of air conditioner Download PDFInfo
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- CN1782627A CN1782627A CN 200410093642 CN200410093642A CN1782627A CN 1782627 A CN1782627 A CN 1782627A CN 200410093642 CN200410093642 CN 200410093642 CN 200410093642 A CN200410093642 A CN 200410093642A CN 1782627 A CN1782627 A CN 1782627A
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Abstract
The variable liquid storage tank structure of air conditioner includes one auxiliary liquid storage tank for sucked refrigerant and one main liquid storage tank for gas refrigerant after two phase separation. The auxiliary liquid storage tank has refrigerant sucking pipe for sucking refrigerant, and connecting pipe is set between the main liquid storage tank and the auxiliary liquid storage tank. The main liquid storage tank is provided with branched refrigerant outputting pipe for gas refrigerant and connected to the refrigerant compressor. The present invention has obviously raised performance and efficiency, simple structure and low cost.
Description
Technical field
The invention belongs to a kind of air conditioner unit, be specifically related to the variable liquid storage tank structure that a kind of compressor to compressed refrigerant more effectively separates and provide the air-conditioner of cold-producing medium.
Background technology
Usually, air-conditioner is behind the high temperature air in repeatedly the suction chamber, make itself and low-temperature refrigerant carry out heat exchange, and then output to indoor environment, lower the temperature for indoor environment thus or utilize opposite effect, cold/heating system for indoor environment heats up mainly is made of compressor-condenser-reboiler.And the air-conditioner of releasing has recently also possessed the contaminated air in the suction chamber except the changes in temperature function, through behind the filtration, purification again the air-cleaning function of output and the air that humidity is bigger become dry and comfortable air, output to the various additional functions of the dehumidification function etc. of indoor environment.Simultaneously, the air-conditioner package AC plant that is divided into detachable air conditioner that indoor set and off-premises station are set respectively and indoor set and off-premises station are set together.Recently, same family be provided with more than 2 air-conditioner or when office building etc. has possessed each room in the building of several offices air-conditioner has been set, the one-driven-several type air-conditioner of operated by rotary motion.This one-driven-several type air-conditioner is to have connected several indoor sets on an off-premises station, and is provided with several detachable air conditioners and has same effect.
As shown in Figure 1, 2, off-premises station 1 roughly is made of compressor 10, fluid reservoir 20 and outdoor heat converter 30.And indoor set 50 is made of indoor heat converter 60 and expansion valve 70.On an off-premises station 1 of one-driven-several type air-conditioner, connected several indoor sets 50, between off-premises station 1 and indoor set 50, be provided with high-voltage tube 80 with very high pressure and low-voltage tube 90 with lower pressure.Air-conditioner is when freezing, and the outdoor heat converter 30 of off-premises station 1 carries out the effect of condenser condensing for the gaseous refrigerant of the high temp/high pressure that compressor 10 transmits.The process condensed refrigerant becomes the gaseous refrigerant of low temperature/low pressure, inflow indoor heat exchanger 60 in the process by expansion valve 70.The cold-producing medium of inflow indoor heat exchanger 60 with the room air heat exchange time, 2 cold-producing mediums mutually that become that the gaseous refrigerant of low temperature/low pressure and liquid refrigerant constitute.This cold-producing medium by after the fluid reservoir 20, is delivered in the compressor 10 separately respectively once more, constitutes a circulation.Air-conditioner is being made when warm, and flowing of cold-producing medium is just in time opposite with above-mentioned process of refrigerastion with the effect of heat exchanger.Be that indoor heat converter 60 has and makes high-temperature high-pressure refrigerant and room air carry out the effect of the condenser of heat exchange, carry out the effect of the evaporimeter of heat exchange and outdoor heat converter 30 plays the cold-producing medium and the outdoor air that make its inner low-temp low-pressure.
Shown in Fig. 3-6, the chassis 2 of above the bottom of off-premises station 1 is provided with various components and parts being installed, 2 front is provided with the front panel 4 that constitutes the front outward appearance on the chassis.Front panel 4 is by front upper panel 4 ' that is arranged on upside and the front lower panel 4 that is arranged on downside " constitute.Front lower panel 4 " on catheter carriage 4 also is set " a.Being front lower panel 4 " definite part of lower end is cut open, and the part that is cut open is by catheter carriage 4 " a sealing, and catheter carriage 4 " a direct high pressure pipe 80 and low-voltage tube 90 communicate with indoor set 50.Upper panel 4 ' and front lower panel 4 in front " between be provided with central bracket, be used for guiding and install.Simultaneously, the upper end of upper panel 4 ' also is provided with upper bracket 6 ' in front, and electric machine stand 48 ' is set on upper bracket 6 '.End about front panel 4, promptly 2 front end left and right sides edges and corners are provided with the place ahead support 8 on the chassis, and the structure of the place ahead support 8 is longer up and down, supports front panel 4 and side grid 34.Be provided with compressor 10 on chassis 2, compressor is used for compressed refrigerant, makes it become high-temperature high-pressure state, is separately positioned on the left and right sides.The at the uniform velocity at the uniform velocity compressor 10 ' of running promptly is set on the right side, is provided with frequency-changeable compressor 10 in the left side ".
Be provided with oil eliminator 12 in the side of compressor 10, oil eliminator 12 separates fuel-displaced from the cold-producing medium that compressor 10 is got rid of, and it is recovered in the compressor 10.2 the central part on the chassis is promptly at the uniform velocity compressor 10 ' and frequency-changeable compressor 10 " between be provided with respectively and at the uniform velocity compressor 10 ' and frequency-changeable compressor 10 " fluid reservoir 20 that communicates.Fluid reservoir 20 stores isolate liquid refrigerant from cold-producing medium after, makes gaseous refrigerant flow into the inside of compressor 10 again.
As shown in Figure 5, frequency-changeable compressor 10 " be divided into to frequency-changeable compressor 10 " frequency-changeable compressor that cold-producing medium is provided is with fluid reservoir 20 " and the at the uniform velocity liquid-storage tank for compressor 20 ' of cold-producing medium is provided for compressor at the uniform velocity with compressor 10 '.At frequency-changeable compressor with fluid reservoir 20 " top be provided with frequency-changeable compressor efferent duct 20 " a, with frequency-changeable compressor with fluid reservoir 20 " inner gaseous refrigerant is exported to frequency-changeable compressor 10 ".Being provided with at the uniform velocity compressor efferent duct 20 ' a on the top of liquid-storage tank for compressor 20 ' at the uniform velocity, at the uniform velocity liquid-storage tank for compressor 20 " inner gaseous refrigerant exports at the uniform velocity compressor 10 '.Frequency-changeable compressor is with fluid reservoir 20 " and at the uniform velocity the top of liquid-storage tank for compressor 20 ' be provided with the gas balance pipe 20a that two devices are communicated, gaseous refrigerant is moved mutually after, in fluid reservoir 20 separately, keep the equilibrium of cold-producing medium; And below be provided with the liquid balance pipe 20b that two devices are communicated, liquid refrigerant is moved mutually after, in fluid reservoir 20 inner sustain equilibriums.Be provided with on the top of separately fluid reservoir 20 to frequency-changeable compressor with fluid reservoir 20 " provide gaseous state and the liquid 2 refrigerant suction pipe 20c of mix refrigerant mutually with liquid-storage tank for compressor 20 ' at the uniform velocity.Owing on each compressor 10, be provided with fluid reservoir 20 respectively, therefore when using several compressors, also can guarantee sufficient refrigerant amount, and according to the running of compressor 10, gaseous refrigerant is by being separately positioned on the fluid reservoir/the frequency-changeable compressor efferent duct 20 of below " a and at the uniform velocity compressor efferent duct 20 ' a be provided at the uniform velocity compressor 10 ' and frequency-changeable compressor 10 " inside.
Above compressor 10, be provided with control box 22.The inside of control box 22 has possessed the control element and the circuit board of the transformer that do not show among the figure, capacitor etc.Control box 22 adopts the cubic box-like structure of open at its front, also is provided with control in front and covers 22 ', closed interior.On the side on chassis 2 and rear end, be provided with outdoor heat converter 30.Outdoor heat converter 30 makes between inner cold-producing medium and the extraneous air and carries out heat exchange, and presses dress in pairs in the left and right sides.Promptly be provided with the left side outdoor heat converter 30 ' of " " type (from the top), be provided with the right side heat exchanger 30 of " " type (from the top) on the right side " in the left side.Near the inlet of outdoor heat converter 30, be provided with directs refrigerant and go into conduit assembly 32, and near outlet, be provided with air accumulator 33.
2 left-hand end and right-hand end are provided with side grid 34 on the chassis, and the rear end is provided with back grid 36.Grid 36 mounted in pairs in back are also corresponding with outdoor heat converter 30.Promptly by back, the left side grid 36 ' that is arranged on outdoor heat converter 30 ' rear, left side and be arranged on right side heat exchanger 30 " back, the right side grid 36 at rear " constitute.At back, left side grid 36 ' and back, right side grid 36 " between be provided with the back support 38 of fixing back grid 36, and 2 rear end left and right sides edge is provided with rear support 38 ' on the chassis.Top panel 40 constitutes the top outward appearance of off-premises stations 1, and top panel 40 adopts the four jiao flat boards corresponding with chassis 2, is provided with a pair of passage 40 ' in the left and right sides of central authorities.On passage 40 ', be provided with ring cover 42.Ring cover 42 adopts the drum type structure that projects upwards, and air is guided in the blowing fan 46 be discharged to the outside.Be provided with discharge grid 44 in the upper end of ring cover 42.Be provided with blowing fan 46 in ring cover 42 inside.Blowing fan 46 rotates under the driving of the fan electromotor 48 that is arranged at its underpart, has the effect of discharging inner air.Fan electromotor 48 be arranged on electric machine stand 48 ' above.
But, in the air conditioner liquid storage tank of prior art design as above, the guide-tube structure of fluid reservoir 20 inside is very complicated, cause cost to rise thus, and use frequency-changeable compressor 10 respectively " and compressor 10 ' at the uniform velocity, frequency-changeable compressor can take place with fluid reservoir 20 " and at the uniform velocity have the unbalanced phenomenon of pressure between the liquid-storage tank for compressor 20 '.
Summary of the invention
The present invention its objective is the unbalanced problem of pressure between the fluid reservoir that solves for the shortcoming that overcomes the prior art existence proposes, and improves the performance of fluid reservoir.Another object of the present invention is to make simplifying the structure of fluid reservoir, reduces manufacturing cost.After comprising the auxiliary fluid reservoir preserved after the draw refrigerant and separate cold-producing medium, air-conditioner variable liquid storage tank of the present invention discharges the main fluid reservoir of gaseous refrigerant.Possessed the refrigerant suction pipe of draw refrigerant on the auxiliary fluid reservoir, between main fluid reservoir and auxiliary fluid reservoir, be provided with the tube connector that two fluid reservoirs are communicated.Be provided with the cold-producing medium efferent duct of the gaseous refrigerant that separates in the main fluid reservoir of output on main fluid reservoir, the inlet of cold-producing medium efferent duct is arranged on the certain altitude of main fluid reservoir inside.The cold-producing medium efferent duct communicates with the compressor of compressed refrigerant respectively after the outer branches of main fluid reservoir.Air-conditioner variable liquid storage tank of the present invention has solved the unbalanced problem of pressure between the fluid reservoir, has improved the performance and the efficient of fluid reservoir, and inner structure is oversimplified more, makes and is more prone to, has reduced manufacturing cost.
Description of drawings
Fig. 1 is the installation diagram of the one-driven-several type air-conditioner of prior art;
Fig. 2 is the formation of one-driven-several type air-conditioner of prior art and the schematic diagram of flow of refrigerant;
Fig. 3 is the air-conditioner outdoor unit outward appearance oblique view of prior art;
Fig. 4 is the exploded perspective view of the air-conditioner outdoor unit structure of prior art;
Fig. 5 is the liquid storage tank structure section sketch of prior art;
Fig. 6 is the dismantle front elevation of the internal structure behind the front panel of the air-conditioner outdoor unit of prior art;
Fig. 7 is the state diagram that is provided with of one-driven-several type air-conditioner of the present invention;
Fig. 8 is that air-conditioner of the present invention is formed and flow of refrigerant process schematic diagram;
Fig. 9 is the detailed pie graph of air-conditioner outdoor unit of the present invention;
Figure 10 is the oblique view of air-conditioner outdoor unit outward appearance of the present invention;
Figure 11 is the exploded perspective view of air-conditioner outdoor unit internal structure of the present invention;
Figure 12 is an air conditioner chamber of the present invention fluid reservoir section structure sketch;
Figure 13 is the dismantle front elevation of the internal structure behind the front panel of one-driven-several type air-conditioner outdoor unit of the present invention.
Wherein:
100 off-premises stations, 102 outdoor magnetic valves
110 chassis, 112 front panels
114 front grids, 116 front upper carriages
120 compressors 120 ' are compressor at the uniform velocity
120 " frequency-changeable compressor 120 ' oil equalizing pipe temperature sensor
121 oil equalizing pipes, 123 oily recovery tubes
124 cross valves, 126 valve supporting seats
128 auxiliary valves, 130 subcoolers
130 " reverse dispatch tube 132 " main fluid reservoir
132 " auxiliary fluid reservoir 132a refrigerant suction pipe
134,134 " front carriage 136 central bracket
140 left side control boxes 140 " the right side control box
142 transformers, 144 capacitors
146 heat sinks 146 " heat abstractor
148 radiator fans, 150 dividing plates
152 gas ports, 154 air guides lid
160 top panels, 162 passages
164 ring covers, 166 output valves
170 Air Blast fans, 172 fan electromotors
174 electric machine stands, 180 outdoor heat converters
182 front heat exchangers, 184 back heat exchangers
186 drain pans, 188 side panels
190 back grids, 192 rear boards
194 back upper brackets, 196 posterior brackets
200 indoor sets, 202 indoor heat converters
204 expansion valves, 206 indoor electric magnet valves
210 common liquid pipes 210 " branch's liquid line
210 " outdoor liquid line 212 common flues
212 " branch's flue 212 " outdoor flue
The shared pipe of 214 high-low pressures
The specific embodiment
Followingly be elaborated with reference to the variable liquid storage tank structure of accompanying drawing to air-conditioner of the present invention:
Shown in Fig. 7,8, off-premises station 100 comprises at the uniform velocity compressor 120 ', frequency-changeable compressor 120 ", fluid reservoir 132, outdoor heat converter 180 and outdoor magnetic valve 102 etc.Indoor set 200 comprises indoor heat converter 202, expansion valve 204 etc.In the one-driven-several type air-conditioner, connect several indoor sets 200 in the off-premises station 100 more than one or two, between off-premises station 100 and indoor set 200, be provided with inner general pipe 210 of liquid and the inner general pipe 212 of gas that transmits gaseous refrigerant that transmits liquid refrigerant.Between plural off-premises station 100, be provided with the shared pipe 214 of the high-low pressure of keeping the cold-producing medium balance.
The inlet of the outdoor heat converter 180 on the shared pipe 214 of high-low pressure and the off-premises station 100 communicates, so that the cold-producing medium between the off-premises station 100 is kept balance.Simultaneously, cold-producing medium is flowed in the outdoor heat converter 180 of the obsolete off-premises station 100 in most off-premises stations 100, improved the heat exchange efficiency of whole system thus.And the shared pipe 214 of high-low pressure freezes according to air-conditioner or heats, and transmits the cold-producing medium of high pressure or low pressure.On indoor set 200, be provided with the inner branch's flue 212 ' that transmits branch's liquid line 210 ' of liquid refrigerant and transmit gaseous refrigerant, and this branch liquid line 210 ' and branch's flue 212 ' communicate with shared liquid line 210 and common gas pipe 212 respectively.
Several branch's liquid lines 210 ' and branch's flue 212 ' volume according to the indoor set 200 that is connected, the diameter that is adopted is also different.On off-premises station 100, be provided with the inner outdoor liquid line 210 that transmits liquid refrigerant " and the inner outdoor flue 212 that transmits gaseous refrigerant ", outdoor liquid line 210 " and outdoor flue 212 " communicate with common liquid line 210 and common flue 212.
Shown in Fig. 9-13, air-conditioner outdoor unit of the present invention comprises: the chassis 110 that constitutes the bottom is arranged on bottom, supports most device, and the front on chassis 110 is provided with the front panel 112 that constitutes the front lower outward appearance.The upside of plate 112 is provided with front grid 114 in front.After front grid 114 suck up outside air, make it pass through outdoor heat converter 180.The upside of grid 114 also is provided with front upper carriage 116 in front, is arranged on electric machine stand 174 leading sections on the front upper carriage 116.On chassis 110, be provided with compressor 120 ', 120 ", compressor 120 ', 120 " have compressed refrigerant and make its effect that becomes high-temperature high-pressure state, be separately positioned on the left and right sides on chassis 110.Be that at the uniform velocity compressor 120 ' is set on the relative right side, the left side is provided with frequency-changeable compressor 120 ", frequency-changeable compressor is the variable ratio frequency changer heat pump.
Be provided with cryogen injector 120a at compressor 120 entrance sides.Cryogen injector 120a, sprays cryogen and cools off when compressor reaches superheat state according to the working order of compressor 120, prevents that compressor is impaired, and the cold-producing medium that the preferably following outdoor heat converter 180 of the cold-producing medium that at this moment uses is discharged.At average rate compressor 120 ' and frequency-changeable compressor 120 " between oil equalizing pipe 121 is set, to connect average rate compressor 120 ' and frequency-changeable compressor 120 ".When if deficiency appears in a certain side compressor oil-supplying, additional from other compressor, prevent the damage of the compressor 120 of low on fuel.Compressor adopts the scroll compressor that noise is little, efficient is high, and particularly frequency-changeable compressor 120 " adopt the frequency-changing cyclone formula compressor of adjusting revolution according to load capacity.When causing load capacity not enough using a spot of indoor set 200, at first start frequency-changeable compressor 120 ", increase load capacity then gradually, when frequency-changeable compressor 120 " in the time of can't bearing, start at the uniform velocity compressor 120 '.
At compressor at the uniform velocity 120 ' and frequency-changeable compressor 120 " the exit be provided with the compressor temperature sensor (120 ' b, 120 " b) and the oil eliminator 122 of the temperature of the cold-producing medium that detects compressor output.Oil eliminator 122 separates fuel-displaced from the cold-producing medium that compressor 120 is discharged, and is recycled in the compressor 120.Be provided with check (non-return) valve 122 ' in the increase of the exit of oil eliminator 122, prevent the adverse current of cold-producing medium.I.e. at the uniform velocity compressor 120 ' or frequency-changeable compressor 120 " in, when having only some compressor starts, prevent that cold-producing medium from flowing into the inside of the compressor 120 that shuts down.Oil eliminator 122 utilizes conduit to be connected on the cross valve 124, cross valve 124 is when air-conditioner freezes or heat, switch the flow of refrigerant direction, the outlet of each port and compressor 120 (perhaps oil eliminator), the inlet of compressor 120 (perhaps fluid reservoir), outdoor heat converter 180 and indoor set 200 connect.At the uniform velocity compressor 120 ' and frequency-changeable compressor 120 " cold-producing medium of output after being brought together, flow in the cross valve 124, be provided with the high pressure sensor 124 ' of the pressure of the cold-producing medium that detects compressor output on the inlet of cross valve 124.Traverse cross valve 124 and be provided with heating pipe 125, heating pipe 125 effects are to flow directly into fluid reservoir 132 from the part of refrigerant that oil eliminator 122 flows into cross valve 124.Heating pipe 125 is in the compressor operation process, when being necessary to improve the pressure of the low pressure refrigerant that flows into fluid reservoir 132, make the high-pressure refrigerant of compressor outlet side directly be fed to compressor 120 inlets, the hot-blast valve 125 ' with bypath valve effect is set on heating pipe 125 opens and closes conduit.
Be provided with valve supporting seat 126 on the first half middle position on chassis 110.Valve supporting seat 126 have support and guide outdoor liquid line 210 ", outdoor flue 212 ", the effect of the shared pipe 214 of high-low pressure, and auxiliary valve 128 is arranged on here equally.After drawing by the conduit gateway 188 ' of side panel 188, the conduit 210,212,214 that is supported by valve supporting seat 126 is connected on the off-premises station 100.On left side of face rear end on the chassis 110, be provided with subcooler 130.Subcooler 130 has the effect of having carried out the cold-producing medium of heat exchange in the further cooling chamber outer heat-exchanger 180, is arranged on the outdoor liquid line 210 of junction chamber outer heat-exchanger 180 outlet sides " the optional position on.Subcooler 130 adopts double-sleeve structure, promptly outdoor liquid line 210 " be arranged on the inboard, reverse dispatch tube 130 ' is arranged on outer the survey.From the reverse dispatch tube of the outlet of subcooler 130 130 ' beginning branch, and be provided with on this reverse dispatch tube 130 ', to its supercooling expansion valve 130 ' a that cools off by the swell refrigeration agent.
The part of refrigerant that subcooler 130 is discharged flows in the reverse dispatch tube 130 ', cool off in the process through supercooling expansion valve 130 ' a, and cooled cold-producing medium carries out adverse current on subcooler 130, further the inboard cold-producing medium of cooling.Flowing into fluid reservoir 132 inside once more from the adverse current cold-producing medium of subcooler 130 output circulates.In the outlet of subcooler 130, be provided with the liquid line temperature sensor 130a of the temperature of the cold-producing medium that detects off-premises station 100 outputs, supercooling inlet sensor 130 ' b is set in the outlet of supercooling expansion valve 130 ' a, is used to detect the temperature of the adverse current cold-producing medium that flows into subcooler 130.The reverse dispatch tube 130 ' inside of transmitting the adverse current cold-producing medium of subcooler 130 discharges is provided with supercooling outlet sensor 130 ' c.Cold-producing medium by outdoor heat converter 180 flows at central part, in its outside then to the low-temperature refrigerant that transmits in the other direction after expanding by expansion valve (not shown), thereby further reduced the temperature of cold-producing medium.Side at subcooler 130, be the outdoor liquid line 210 that the cold-producing medium of outdoor heat converter 180 output guides to indoor set 200 inside " the side be provided with drier 131, drier 131 has the outdoor liquid line 210 " effect of the moisture that comprises in the inner cold-producing medium of removing.The central part on chassis 110 is promptly at the uniform velocity compressor 120 ' and frequency-changeable compressor 120 " between be provided with fluid reservoir 132.Fluid reservoir 132 comprises the auxiliary fluid reservoir 132 of store refrigerant " with draw/separate back provides gaseous refrigerant to compressor main fluid reservoir 132 ' for the cold-producing medium that stores.At auxiliary fluid reservoir 132 " top insert and be used to draw the 2 refrigerant suction pipe 132a of cold-producing medium mutually that form by liquid and gaseous refrigerant, and connect main fluid reservoir 132 ' and auxiliary fluid reservoir 132 " tube connector 132b be arranged on the top of fluid reservoir 132.
On the top of main fluid reservoir 132 ', cold-producing medium efferent duct 132c has been inserted on the certain altitude of main fluid reservoir 132c inside.Cold-producing medium efferent duct 132c has the gaseous refrigerant of drawing main fluid reservoir 132 ' inner separation, provides it to compressor.Cold-producing medium efferent duct 132c gives at the uniform velocity compressor 120 ' and frequency-changeable compressor 120 after the outer branches of main fluid reservoir 132 ' " cold-producing medium is provided.After each fluid reservoir 132 filters out liquid refrigerant, gaseous refrigerant is exported to compressor, and from the cold-producing medium that indoor set 200 flows into, be not evaporated to the liquid refrigerant of gaseous state, if gaseous refrigerant flows directly into compressor 120 inside, then can increase the load that cold-producing medium is become the compressor 120 of high temp/high pressure state, finally damage compressor 120.Flow in the cold-producing medium of fluid reservoir 132 inside, therefore the cold-producing medium that does not have to evaporate and keep liquid state is stored in the bottom of fluid reservoir 132, and has only gaseous refrigerant inflow compressor 120 inside on top because gaseous refrigerant is heavier relatively.Entrance side at fluid reservoir 132 is provided with suction lead temperature sensor 132d that detects the refrigerant temperature that sucks and the low pressure sensor 132 that detects refrigerant pressure ".
On the front end both sides on chassis 110, be provided with the place ahead support 134,134 ' respectively.The place ahead support 134,134 ' is 110 front end on the chassis, and its structure is longer up and down, is divided into left forward side support 134 that is arranged on the left side and the right forward side support 134 ' that is arranged on right-hand end.The main effect of the place ahead support 134,134 ' is to support front upper carriage 116, front grid 114 and control box 140,140 '.Forwardly on the central part of left side brackets 134 and right forward side support 134 ' to the left and right direction central bracket 136 is set.Below central bracket 136, be provided with control box 140,140 '.Control box be arranged on the left and right sides constitute a pair of.Promptly be divided into left side control box 140 that is arranged on the left side and the right side control box 140 ' that is arranged on the right side.Left side control box 140 utilizes hinge 140a to be fixed on the left forward side support 134, and right side control box 140 ' utilizes hinge 140 ' a to be fixed on the right forward side support 134 '.
Control box 140,140 ' adopts the cubic flask structure of front openings, and the place ahead is by front panel 112 sealings.Control element and heat sinks 146 such as transformer 142, capacitor 144 are set on left side control box 140.Formed the radiating part 146 ' that constitutes by fin in the back of heat sink 146.Upper end, back at left side control box 140 is provided with radiator fan 148, the radiator fan 148 general cross flow fans that adopt.When upwards discharging behind the radiator fan 148 absorption air, promoted the heat exchange of radiating part 146 ', thus cooling heat dissipation plate 146.Control box 140,140 ' side is owing to utilize hinge 140a, 140 ' a to be arranged on the place ahead support 134,134 ', and therefore with hinge 140a, 140 ' a is axially preceding the rotation.Thus, when inner member need carry out after-sale service, can rotate control box 140 forward, 140 ', carry out operation.
Baffle plate 150 is set on central bracket 136.Baffle plate 150 is divided into upside space and lower side space with the inside of off-premises station 100.That is, divide downside that compressor 120 and controller 140,140 ' are set and the upside that outdoor heat converter 180 is set.Dividing plate 150 and control box 140,140 ' equally are separately positioned on the left and right sides of central bracket 136.Dividing plate 150 is by the horizontal part 150 ' that forms backward from central bracket 136 with from the rake 150 of the downward-sloping certain angle in rear end of horizontal part 150 ' " constitute.In dividing plate 150, formed gas port 152 on the horizontal part 150 ' of left side baffle plate 150, be provided with air guide lid 154 at the upside of gas port 152.The place ahead of air guide lid 154 and top sealing, the rear opening, the air that the radiator fan that is arranged on the below is forced to send guides to the rear.
Top panel 160 constitutes the top outward appearance of off-premises station 100.Top panel 160 adopts quadrilateral structure, and its left and right sides is provided with in pairs.Formed passage 162 on the plate 160 in the above, the peripheral ring cover 164 that extends back formation cylinder type downwards of passage 162.Ring cover 164 is formed whole formation with top panel 160, preferably adopts plastic production.Ring cover 164 adopts cylinder type, guides the air that blowing fan 170 is forced to send into outside.At the upside of ring cover 164, promptly be provided with the output grid 166 of the circle corresponding on the passage 162 with passage 162.Be provided with blowing fan 170 in ring cover 164 inboards.Blowing fan 170 rotates under the driving that is arranged at the fan electromotor 172 below it, and the air of inside is upwards discharged.Be that fan electromotor 172 externally rotates under the effect of power supply, the blowing fan 170 that is fixed in the rotating shaft begins rotation, upwards discharges air.Fan electromotor 172 is fixed on the motor cabinet 174.Motor cabinet 174 is by the bracing frame 174 of tetragonal fixed head 174 ' and support fixation plate 174 ' " constitute.Bracing frame 174 " be arranged on left and right sides, form a pair of, and this a pair of bracing frame 174 " central part fixed head 174 ' has been installed.Bracing frame 174 " front-end and back-end be bent upwards, be separately fixed on front upper carriage 116 and the back upper bracket 194.
The bottom of plate 160 is provided with outdoor heat converter 180 in the above, and the effect of outdoor heat converter 180 is to make its inner cold-producing medium and extraneous air carry out heat exchange, and side before and after being arranged on constitutes a pair of.That is, be divided into front heat exchanger 182 that is arranged on top panel 160 front end downsides and the back heat exchanger 184 that is arranged on top panel 160 rear end downsides.The Lower Half of front heat exchanger 182 is crooked backward.That is, the Lower Half of front heat exchanger 182 is by the rake 182 that extends vertical component effect 182 ' that certain length forms from the front end of front panel 112 downwards and backward tilt at an angle and extend from the lower end of vertical component effect 182 ' " constitute.Rake 182 " the lower end and the lower end of back heat exchanger 184 close mutually, and maintain a certain distance between the lower end of outdoor heat converter 180 and the chassis 110.Side at outdoor heat converter 180 also is provided with the conduit assembly 180 ' that the cold-producing medium that compressor 120 is provided is distributed to various piece.
Be provided with the heat-exchanger temperature sensor 180a of the temperature that detects heat exchanger in the inside of outdoor heat converter 180, on the outside, be provided with the outdoor temperature sensor 180b that detects external temperature.Downside is provided with drain pan 186 in the lower end of outdoor heat converter 180.Longer about the structure of drain pan 186, behind the condensed water that generates on the collecting chamber outer heat-exchanger 180, discharge to the side.Be provided with side panel 188 on left-hand end on chassis 110 and the right-hand end.Side panel 188 has constituted the side outward appearance of off-premises station 100, is provided with conduit access hole 188 ' on the fore-and-aft direction of lower end respectively.100 rear end is provided with back grid 190 on the chassis.The size of back grid 190 is corresponding with back heat exchanger 184, and the downside of grid 190 is provided with rear board 192 in the back.The back upper bracket of growing about the upper end of grid 190 is provided with in the back 194.Back upper bracket 194 is arranged on the front, upper end of back grid 190, the bracing frame 174 of support motor seat 174 " the rear end.Be provided with rear support 196 on angle, 110 rear end, chassis, the structure of rear support 196 is longer up and down, supports back grid 190, rear board 192 and top panel 160.
Below, with reference to accompanying drawing 8-13 the course of work and the effect of multi-split air conditioner of the present invention are described:
In the air-conditioner of the present invention's design, be provided with a plurality of indoor sets 200 on the off-premises station 100, according to user's selection, a part or all indoor sets 200 start simultaneously.After air-conditioner started (cooling operation), outdoor magnetic valve 102 was opened, and cold-producing medium flows between off-premises station 100 and indoor set 200.At first, flow of refrigerant process in the indoor set 100 is as follows: after the gaseous refrigerant process cross valve 124 that indoor set 200 flows into,, move in the main fluid reservoir 132 ' after " inside; be full of auxiliary fluid reservoir 132 " by the auxiliary fluid reservoir 132 of refrigerant suction pipe 132a inflow by tube connector 132b.
After compressor 120 starts, draw the cold-producing medium in the main fluid reservoir 132 ', and the gaseous refrigerant of at this moment main fluid reservoir 132 inside flows into compressor 120 inside by cold-producing medium efferent duct 132c.When lack of refrigerant that offers compressor 120 or compressor 120 generation superheating phenomenons, the refrigerant injection device 120a provide cold-producing medium.After cold-producing medium after the compressor compresses is discharged by outlet through oil eliminator 122.In oil eliminator 122, isolate the lubricating oil in the cold-producing medium, be recovered in the compressor 120 by oily recovery tube 123.During compressor 120 compressed refrigerants, lubricating oil will be included in the cold-producing medium, and lubricating oil is liquid, and cold-producing medium is a gas, therefore separates on the oil eliminator 122 that carries out gas-liquid separation.Connecting compressor at the uniform velocity 120 ' and frequency-changeable compressor 120 " the effect of oil equalizing pipe 121 under, the lubricating oil of both sides compressor 120 inside is kept equilibrium.The cold-producing medium that has passed through oil eliminator 122 has passed through in cross valve 124 inflow outdoor heat exchangers 180.Because outdoor heat converter 180 plays the effect of condenser (refrigeration mode) this moment, thus cold-producing medium by with the heat exchange liquefy of extraneous air.Passed through cold-producing medium further cooling after process subcooler 130 of outdoor heat converter 180.The cold-producing medium that has passed through subcooler 130 enters indoor set 200 inside by common liquid pipe 210 after removing the moisture that comprises through drier 131.Simultaneously, flow in other the off-premises station 100 by the shared pipe 214 of high-low pressure by the part of refrigerant in the cold-producing medium of compressor 120.
The cold-producing medium that is provided to other off-premises stations 100 by the shared pipe 214 of high-low pressure flows in the outdoor heat converter 180 of the off-premises station 100 that shuts down, and also utilizes the outdoor heat converter 180 of the off-premises station 100 that shuts down to carry out certain heat exchange when whole refrigerant pressure is kept in balance.When cold-producing medium is provided to indoor set 200 by common liquid pipe 210, in each indoor set 200 from the liquid line 210` of the branch input running of common liquid pipe 210 branches.Cold-producing medium carries out heat exchange on indoor heat converter 202 after decompression on the expansion valve 204.Indoor heat converter 202 plays the effect of evaporimeter, so cold-producing medium becomes low-pressure gas through heat exchange.The cold-producing medium that indoor heat converter 202 is discharged gathers after the public flue 212 through branch's flue 212 ', flows into off-premises station 100.By common gas pipe 212 and outdoor flue 212 " flow into the cold-producing medium of indoor set 100 through cross valve 124, by the auxiliary fluid reservoir 132 of refrigerant suction pipe 132a inflow " inside.At auxiliary fluid reservoir 132 " in preserve the cold-producing medium that indoor set transmits; and by being arranged on auxiliary fluid reservoir 132 " the tube connector 132b and main fluid reservoir 132 ' the inner cold-producing medium efferent duct 132c on top filtered the liquid refrigerant that has little time to evaporate, and therefore has only the inside of gaseous refrigerant inflow compressor 120.Through above-mentioned process, finish a circulation.
When heating running, the flow path of cold-producing medium is opposite fully with above-mentioned process of refrigerastion, utilizes outdoor magnetic valve 102 to adjust refrigerant amount.Air flow process in the off-premises station 100 is as follows: along with applying power supply, fan electromotor 172 starts rear drive blowing fan 170, and after blowing fan 170 rotations, air outside flows into inner by front grid 114 and back grid 190.The air that flows into off-premises station 100 inside under the effect of blowing fan 170, being forced to property deliver to the top, at this moment ring cover 164 guiding air flows.
Effect with reference to the variable liquid storage tank in the detailed explanation embodiment of the invention of accompanying drawing 12: off-premises station carried out after the heat exchange by gaseous state and liquid refrigerant form 2 mutually cold-producing medium flow to auxiliary fluid reservoir 132 by refrigerant suction pipe 132a " inside, be stored in auxiliary fluid reservoir 132 thus " inside.Gaseous refrigerant is by connecting auxiliary fluid reservoir 132 " and the tube connector 132b of main fluid reservoir 132 ' flow to main fluid reservoir 132 ', and by being arranged on cold-producing medium efferent duct 132c inflow compressor 120 inside on the inner certain altitude of main fluid reservoir 132 '.At this moment, cold-producing medium efferent duct 132c connects frequency-changeable compressor 120 after the outer branches of main fluid reservoir 132 ' " and compressor 120 ' at the uniform velocity, and cold-producing medium inflow compressor 120 inside thus.The heavier liquid refrigerant of weight in the 2 phase cold-producing mediums accumulates in auxiliary fluid reservoir 132 " bottom, naturally and understandably carried out gas-liquid separation thus, when compressor 120 rotations, the cold-producing medium of fluid reservoir 132 inside is sucked into compressor 120 inside.Under the effect of the suction that produces when the rotation of compressor 120, the cold-producing medium of appropriate amount enters the inside of compressor 120.That is, when compressor 120 rotations are quick, draw the more cold-producing medium of volume, and when the rotation of compressor 120 is slow, draw a spot of cold-producing medium, therefore can adjust refrigerant amount automatically.The embodiment that scope of the present invention is not limited to, the technical staff in affiliated technical field can carry out various changes on basis of the present invention.
The air-conditioner variable liquid storage tank of the present invention's design makes the internal structure of fluid reservoir simpler, and utilizes unitary catheter to constitute the cold-producing medium efferent duct that offers compressor from fluid reservoir, carries out branch then, leads to each compressor.Any one compressor start can provide gaseous refrigerant rapidly, and because the conduit of main fluid reservoir output is a unitary catheter, even therefore and between the auxiliary fluid reservoir the unbalanced phenomenon of pressure occurs, also can not influence the running of compressor.Because auxiliary fluid reservoir also plays the effect of store refrigerant, directly cold-producing medium is offered compressor by main fluid reservoir, so compressor also can be brought into play best performance.
And, accelerated the flow of refrigerant speed of cold-producing medium efferent duct, make the oil supply of compressor smooth more thus, improved the oily rate of recovery.Reduced the conduit that constitutes whole fluid reservoir, internal structure is oversimplified more, so operation is convenient, has reduced manufacturing cost.Because the minimizing of inner conduit has also reduced the workload of welding.Promptly for necessary refrigerant flow is provided to system, when using several fluid reservoirs, also oversimplified the conduit of the cold-producing medium that offers compressor, therefore under the situation of the constancy of volume of whole fluid reservoir, can be according to the variation of compressor power output, cold-producing medium is provided more accurately and effectively, has improved the efficient of air handling system.
Claims (6)
1, a kind of variable liquid storage tank of air-conditioner, the central part that is included in chassis (110) is promptly at frequency-changeable compressor (120 ") with fluid reservoir (132) at the uniform velocity is set between the compressor (120 '); it is characterized in that: described fluid reservoir (132) is divided into auxiliary fluid reservoir (132 ") and main fluid reservoir (132 '), and described auxiliary fluid reservoir (132 ") is the auxiliary fluid reservoir preserved after the draw refrigerant (132 "); Described main fluid reservoir (132 ') is the main fluid reservoir (132 ') of discharging gaseous refrigerant behind the separation 2 phase cold-producing mediums.
2, the variable liquid storage tank of air-conditioner according to claim 1 is characterized in that: auxiliary fluid reservoir (132 ") is provided with the refrigerant suction pipe (132a) of draw refrigerant.
3, the variable liquid storage tank of air-conditioner according to claim 1 is characterized in that: be provided with the tube connector (132b) that is interconnected between main fluid reservoir (132 ') and auxiliary fluid reservoir (132 ").
4, the variable liquid storage tank of air-conditioner according to claim 1 is characterized in that: the cold-producing medium efferent duct (132c) that is provided with the gaseous refrigerant that separates in the main fluid reservoir of output (132 ') on main fluid reservoir (132 ').
5, according to the variable liquid storage tank of claim 1 or 4 described air-conditioners, it is characterized in that: the inlet of cold-producing medium efferent duct (132c) is arranged on the inner certain altitude of main fluid reservoir (132 ').
6, the variable liquid storage tank of air-conditioner according to claim 5 is characterized in that: cold-producing medium efferent duct (132c) is communicated with the compressor of compressed refrigerant (120 ', 120 ") respectively after the outer branches of main fluid reservoir (132 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093642 CN1782627A (en) | 2004-11-29 | 2004-11-29 | Variable liquid storage tank structure of air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093642 CN1782627A (en) | 2004-11-29 | 2004-11-29 | Variable liquid storage tank structure of air conditioner |
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| CN1782627A true CN1782627A (en) | 2006-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045626A (en) * | 2022-12-27 | 2023-05-02 | 安徽欧瑞达电器科技有限公司 | Directly-heated air source heat pump dryer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045626A (en) * | 2022-12-27 | 2023-05-02 | 安徽欧瑞达电器科技有限公司 | Directly-heated air source heat pump dryer |
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