CN1948868A - Air conditioner and its control method for the pressure equilibrium - Google Patents
Air conditioner and its control method for the pressure equilibrium Download PDFInfo
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- CN1948868A CN1948868A CNA2005101153039A CN200510115303A CN1948868A CN 1948868 A CN1948868 A CN 1948868A CN A2005101153039 A CNA2005101153039 A CN A2005101153039A CN 200510115303 A CN200510115303 A CN 200510115303A CN 1948868 A CN1948868 A CN 1948868A
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- producing medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0401—Refrigeration circuit bypassing means for the compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/07—Exceeding a certain pressure value in a refrigeration component or cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/027—Compressor control by controlling pressure
- F25B2600/0272—Compressor control by controlling pressure the suction pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2525—Pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/15—Power, e.g. by voltage or current
- F25B2700/151—Power, e.g. by voltage or current of the compressor motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The object of the invention is to realize the pressure balancing between the outdoor side of the air conditioner and the piping or between the high pressure side piping and the low pressure side piping to make the compressor work all right. In order to realize the aim, the air conditioner of the invention is characterized by including: a compressor for compressing the refrigerant, a pressure pipe for discharging the high pressure flowing refrigerant and an outdoor machine used in the low voltage tube to make the low voltage refrigerant sucked into the compressor flow; a first piping connecting the high pressure pipe and the indoor machine and a second piping connecting the low pressure pipe and the indoor machine; a bridge type apparatus disposed in the high pressure pipe for controlling the pressure equalizing between the first piping and the second piping; a control unit, for closing the bridge type apparatus when the compressor is operated and opening the bridge type apparatus when the compressor stops.
Description
Technical field
The present invention relates to a kind of air conditioner and pressure equilibrium control method thereof, relate in particular to for air conditioner with an above off-premises station, make between shared pipe arrangement that this above off-premises station links to each other with an above indoor set and the described off-premises station and realize pressure balance, thereby can make the air conditioner and the pressure equilibrium control method thereof of compressor trouble-free operation.
Background technology
Usually, air conditioner is to be used for compressed refrigerant,, supplies by the gaseous state cold-producing medium of HTHP the device of cold air or hot gas so that circulating to the interior space, constitute by off-premises station and indoor set, off-premises station is made up of the compressor of compressed refrigerant, or outdoor heat exchanger, the cooling fan of vaporized refrigerant and the outside expansion valve that is used for the swell refrigeration agent etc. condensing by heat exchange, and indoor set is made up of the indoor side heat exchanger of the indoor expansion valve that is used for the swell refrigeration agent, or vaporized refrigerant condensing by heat exchange and ventilating fan etc.
Describe below thisly not only can freeze, but also the course of work of the air conditioner that can heat.
When heating, the high-temperature high-pressure refrigerant that compressor is discharged is fed directly to indoor set and produces hot-air by heat exchanger condensing the time, and the cold-producing medium by described indoor side heat exchanger flow into off-premises station and expand by the outside expansion valve after flow into compressor once more by the outdoor heat exchanger evaporation.Before by described outside expansion valve, be arranged in parallel check valve and cold-producing medium control valve, described check valve can not make the cold-producing medium that flows back to off-premises station by and the cold-producing medium that flows to indoor set is passed through, thereby the cold-producing medium that flows back to off-premises station during described heating can be opened and flow into compressor by described expansion gear and heat exchanger successively along with described cold-producing medium control valve.
When refrigeration, by high-temperature high-pressure refrigerant that compressor compressed by the condensing indoor set that flow into of outdoor heat exchanger, indoor set expand by the indoor expansion valve and sharply reduce refrigerant pressure after by the indoor side heat exchanger evaporation generation cold air and by air draft.After the cold-producing medium of off-premises station by described compressor and outdoor heat exchanger is through the outside expansion valve, flow into indoor set by check valve.At this moment, described outside expansion valve does not play the effect of swell refrigeration agent, only plays that cold-producing medium is passed through.Therefore, during refrigeration and the cold-producing medium control valve that is in parallel of described check valve be closed always.The reason that so has check valve and cold-producing medium control valve is in order to prevent cold-producing medium to the off-premises station side inflow, and this off-premises station is for being in halted state when heating.
In addition, it is opposite each other with compressor is discharged when heating cold-producing medium loop direction to freeze, and the setting of this cold-producing medium direction is to realize by the cross valve that is arranged on the compressor discharge port side.
But when changing aforesaid loop direction repeatedly, the suction oral-lateral of compressor and discharge oral-lateral form pressure reduction.That is: the compressor discharge port side forms high pressure, forms low pressure and suck oral-lateral.Because bigger load takes place when causing starting compressor this pressure reduction, thereby compressor can not be worked smoothly, and because of the high pressure of compressor discharge port side, may produce also that compressor institute refrigerant compressed is not discharged from and the serious problems that flow backwards.
In order to address this is that, since when stop air conditioner by the user or when satisfying design temperature and stop air conditioner automatically compressor also stop thereupon, thereby by pass-over offset and the circuitous valve that is communicated with the compressor discharge port side and sucks oral-lateral is set, and eliminates and be formed on the compressor discharge port side and suck the formed pressure reduction of oral-lateral by opening described circuitous valve at the compressor stopping period.
But, when off-premises station is set to a plurality of and connects the piping length of these a plurality of off-premises stations and indoor set when longer, though perhaps off-premises station is one but owing to when the distance of indoor set far makes piping length longer, said method to reduce with the compressor be between the outdoor pusher side at center and the pipe arrangement or the pipe arrangement of stream high-pressure refrigerant and the pipe arrangement side that flows low pressure refrigerant between formed pressure reduction there is no positive effect, even and can reduce its pressure reduction, also need for a long time.
Especially when refrigeration, there is following problem: because the high-temperature high-pressure refrigerant that compressor is discharged passes through outside expansion valve and check valve after over-heat-exchanger, and the cold-producing medium control valve that is parallel to described check valve is closed always, thereby when air conditioner is out of service, even relax the pressure reduction of off-premises station inside by described circuitous valve, also can (check valve can not make cold-producing medium towards flowing in the other direction because of described check valve and described cold-producing medium control valve, and the cold-producing medium control valve is closed) make the pressure reduction between high-pressure side pipe arrangement and outdoor pusher side or the low-pressure side pipe arrangement be difficult for realizing balance, thereby when resetting compressor, not only the cold-producing medium of being discharged can not flow in pipe arrangement and may flow backwards because of pressure reduction, and is difficult to starting compressor to applying bigger load on the compressor.
Summary of the invention
The present invention proposes in order to solve aforesaid problem, and its purpose is to realize fast between the outdoor pusher side of air conditioner and the pipe arrangement or the pressure balance between high-pressure side pipe arrangement and the low-pressure side pipe arrangement, thereby compressor is worked smoothly.
To achieve these goals, air conditioner provided by the present invention is characterized in that comprising: have the compressor that is used for compressed refrigerant, be used for the high-voltage tube that high-pressure refrigerant that described compressor discharges flows and be used for being inhaled into the off-premises station of the low-voltage tube that the low pressure refrigerant of described compressor flows; First pipe arrangement and second pipe arrangement that is connected described low-voltage tube and indoor set that connect described high-voltage tube and indoor set; Be arranged at described high-voltage tube in order to control pressure balanced bridge-type device between described first pipe arrangement and described second pipe arrangement; Control part is used for closing described bridge-type device when described compressor is operation, and opens described bridge-type device when described compressor stops.
And, described off-premises station further comprises and is communicated with described compressor discharge port side and pass-over offset that sucks oral-lateral and the circuitous valve that is used to open and close described pass-over offset, and described control part is opened described circuitous valve for to close described circuitous valve when described compressor operating when described compressor stops.
And described bridge-type device is the cold-producing medium control valve that is used to control flow of refrigerant, and described cold-producing medium control valve is for to be opened in the given time when described compressor stops.
And described bridge-type device is to be used to control the outside expansion valve that cold-producing medium expands or circulates, and described outside expansion valve is for to be opened in the given time when described compressor stops.
And, described bridge-type device is the bridge valve that is used to open and close bridge pipe, this bridge pipe was controlled the outside expansion valve of cold-producing medium expansion or circulation and is communicated with described first pipe arrangement side and described compressor discharge port side for circuitous being used to, and described bridge valve is for to be opened in the given time when described compressor stops.
And described off-premises station has more than two.
In addition, the air conditioner pressure equilibrium control method provided by the present invention that proposes in order to solve the prior art problem, comprise compressor, be used for the high-voltage tube that high-pressure refrigerant that described compressor discharges flows and be used for to be inhaled into the off-premises station of the low-voltage tube that the low pressure refrigerant of described compressor flows, it is characterized in that comprising step: judge that whether described compressor is for stopping; When described compressor stops, then will being used for first pipe arrangement of the described high-voltage tube of control connection and indoor set and the pressure balanced bridge-type device that is connected between second pipe arrangement of described low-voltage tube and indoor set is opened; The circuitous valve that will be used to open and close the pass-over offset that connects described compressor discharge port side and suction oral-lateral is opened.
And described bridge-type device is the cold-producing medium control valve that is used to control flow of refrigerant, and described cold-producing medium control valve is for to be opened in the given time when described compressor stops.
And described bridge-type device is to be used to control the outside expansion valve that cold-producing medium expands or circulates, and described outside expansion valve is for to be opened in the given time when described compressor stops.
And, described bridge-type device is the bridge valve that is used to open and close bridge pipe, this bridge pipe was controlled the outside expansion valve of cold-producing medium expansion or circulation and is communicated with described first pipe arrangement side and described compressor discharge port side for circuitous being used to, and described bridge valve is for to be opened in the given time when described compressor stops.
And described off-premises station has more than two.
Description of drawings
Fig. 1 is simple air conditioner outdoor unit and the formation of pipe arrangement and the schematic diagram of representing according to first embodiment of the invention provided of cold-producing medium circulating path;
Fig. 2 is simple air conditioner outdoor unit and the formation of pipe arrangement and the schematic diagram of representing according to second embodiment of the invention provided of cold-producing medium circulating path;
Fig. 3 is simple air conditioner outdoor unit and the formation of pipe arrangement and the schematic diagram of representing according to third embodiment of the invention provided of cold-producing medium circulating path;
Fig. 4 is the flow chart of expression air conditioner pressure equilibrium control method provided by the present invention.
Main symbol description: 1 is off-premises station, and 2 is first pipe arrangement, and 3 is second pipe arrangement, and 4 is indoor set, 10 is compressor, and 11 is pass-over offset, and 12 are circuitous valve, and 13 is cross valve, 14 is heat exchanger, and 20 is high-voltage tube, and 21 is the outside expansion valve, 22 is check valve, and 23 is the cold-producing medium control valve, and 24 is bridge pipe, 25 is the bridge valve, and 30 is low-voltage tube, and 40 is the indoor expansion valve, 41 is indoor side heat exchanger, and 50 is the bridge-type device, and 60 is control part.
The specific embodiment
Below, the preferred embodiment of air conditioner that present invention will be described in detail with reference to the accompanying is provided and pressure equilibrium control method thereof.
Fig. 1 is simple air conditioner outdoor unit and the formation of pipe arrangement and the schematic diagram of representing according to first embodiment of the invention provided of cold-producing medium circulating path, Fig. 2 is simple air conditioner outdoor unit and the formation of pipe arrangement and the schematic diagram of representing according to second embodiment of the invention provided of cold-producing medium circulating path, Fig. 3 is for representing simply that according to air conditioner outdoor unit and the formation of pipe arrangement and the schematic diagram of cold-producing medium circulating path that third embodiment of the invention provided Fig. 4 is the flow chart of expression air conditioner pressure equilibrium control method provided by the present invention.
As shown in Figure 1 to Figure 3, the present invention is both applicable to the heat pump type air conditioner that can carry out refrigerating operaton and heating operation, also go for to carry out the air conditioner of refrigerating operaton, especially when make because the distance between off-premises station and the indoor set is far away piping length long or be provided with a plurality of off-premises stations and make and indoor set between piping length when longer, if when only being used to regulate the circuitous valve of compressor of outdoor unit circumferential pressure balance and realizing connecting the pipe arrangement of off-premises station and indoor set and the pressure balance between the off-premises station the needed time than the situation of length.
Fig. 1 to Fig. 3 is as according to an example of air conditioner provided by the present invention, and expression not only can have been carried out refrigerating operaton but also can carry out the heat pump type air conditioner of heating operation, and especially expression is provided with the air conditioner of two above off-premises stations.
The first embodiment of the present invention shown in Figure 1 comprises more than one off-premises station 1 and more than one indoor set 4, each off-premises station 1 be used to change when comprising the compressor 10 that is used for compressed refrigerant, freeze and heating the cold-producing medium loop direction cross valve 13, outdoor heat exchanger 14, by the swell refrigeration agent reduce pressure outside expansion valve 21, make cold-producing medium only by a direction by and the check valve 22 that can not pass through by rightabout, the cold-producing medium control valve 50 that is in parallel and controls flow of refrigerant with described check valve 22.And indoor set 4 comprises indoor expansion valve 40 and indoor side heat exchanger 41.
And off-premises station 1 comprises: be used for the mobile high-voltage tube 20 of high-pressure refrigerant that described compressor 10 is discharged during refrigerating operaton, promptly arrive the pipe arrangement that A is ordered from the C point through the B point; Be used for flowing into the mobile low-voltage tube 30 of low pressure refrigerant of compressor 10, promptly be connected to the pipe arrangement of compressor 10 through D ' and D point from the E point from indoor set 4.At this, described high-voltage tube 20 is to be used for the pipe arrangement that low pressure refrigerant flows during heating operation, and the mobile pipe arrangement of high-pressure refrigerant that described low-voltage tube 30 is discharged for being used for compressor 10.
And, according to air conditioner provided by the present invention, comprise first pipe arrangement 2 that connects described high-voltage tube 20 and indoor set 4 and second pipe arrangement 3 that is connected described low-voltage tube 30 and indoor set 4.
In addition, in the second embodiment of the invention shown in Figure 2, check valve 22 in the off-premises station 1 and 21 parallel connections of outside expansion valve, other structures are identical with the first embodiment of the invention of Fig. 1.
In addition, the bridge pipe 24 and the bridge valve 25 that is used to open and close this bridge pipe 24 of circuitous check valve 22 and outside expansion valve 21 is set in the off-premises station 1 in the third embodiment of the invention shown in Figure 3, other structures are identical with the first embodiment of the invention of Fig. 1.
Cold-producing medium control valve 23 in the aforesaid first embodiment of the invention, the outside expansion valve 21 among second embodiment and the bridge valve 25 among the 3rd embodiment all are examples of pressure balanced bridge-type device 50 between first pipe arrangement 2 when being used to control refrigerating operaton and second pipe arrangement 3.
Fig. 1 extremely the present invention shown in Figure 3 has the control part 60 that is used to control pressure equilibrium, but these control part 60 receiving and transmitting signal ground are connected with circuitous valve 12 and bridge-type device 50 (being for being bridge valve 25 among outside expansion valve 21, the 3rd embodiment among first embodiment among cold-producing medium control valve 23, second embodiment) with compressor 10 respectively.
The following describes according to air conditioner provided by the present invention and the course of work of pressure equilibrium control method and the circulating path of cold-producing medium.
Flow of refrigerant direction when representing to freeze with arrow among Fig. 1 to Fig. 3, and cold-producing medium flows by the opposite direction of diagram arrow when heating.At this, and suction oral-lateral, E point and the E ' of the outlet side of A point and A ' (A ") some expression first pipe arrangement 2 sides, B point expression heat exchanger 20, discharge oral-lateral, D point and D ' some expression compressor 10 of C point expression compressor 10 (E ") some expression second pipe arrangement 3 sides.
When heating operation, high-temperature high-pressure refrigerant that compressor 10 is discharged flow to E ' and E by cross valve 13 from E point through C point " point; flow into indoor set 4 and pass through indoor side heat exchanger 41 and indoor expansion valve 40 and become the cold-producing medium of normal temperature and pressure " point flows to the B point after flowing to the A point from and A at A ', this moment, outside expansion valve 21 and cold-producing medium control valve 23 were for often opening, thereby can make refrigerant flow direction B point (check valve 22 is set to only so that cold-producing medium leads to the A point from the B point, and also cannot flow to the B point from the A point).Refrigerant pressure by outside expansion valve 21 sharply reduces, and the cold-producing medium that B is ordered flow to and D point at D ' and is inhaled into compressor 10 by outdoor heat exchanger 14 and cross valve 13.
When refrigerating operaton, high-temperature high-pressure refrigerant that compressor 10 is discharged is condensing and flow to the A point with the state of normal temperature high voltage from the B point at outdoor heat exchanger 14 by cross valve 13 through the C point.At this moment, outside expansion valve and the bridge valve 25 of the cold-producing medium control valve 23 of Fig. 1, the outside expansion valve 21 of Fig. 2, Fig. 3 all are closed, and flow thereby make cold-producing medium pass through check valve 22.Cold-producing medium flow to and A at A ' from the A point " putting and flow into indoor set 4; and expand and make pressure become the cold-producing medium of low-temp low-pressure after sharply reducing in indoor side heat exchanger 41 evaporations at indoor expansion valve 40, then from and E at E ' ", and point flow to that E point also flow to D ' from the E point again is inhaled into compressor 10 with the D point.
If further specify described refrigerating operaton, then as shown in Figure 1 to Figure 3, not only making C point be connected to the high-voltage tube 20 that A orders by cold-producing medium circulation is high pressure conditions, and make and connect A point and and A at A ' that " first pipe arrangement 2 of point also is high pressure conditions; " second pipe arrangement 3 of point and E is a low-pressure state, and also is low-pressure state from the low-voltage tube 30 that E point process D point is connected to compressor 10 and connect and E at E '.
At this moment, indoor expansion valve 40 owing to indoor set 4 when compressor 10 stops is opened, thereby make flow of refrigerant, and make A ' (the A ") point of high pressure and the E ' of low pressure (the E ") pressure reduction between putting obtain balance thus, but because the length of first pipe arrangement 2 and second pipe arrangement 3 is very long, thereby it is unbalanced to produce pressure on the pipe arrangement, even therefore realize pressure balance at A ' (A ") point and E ' (E ") point, also is difficult to realize at short notice the pressure balance that A point and E are ordered.And 22 on described check valve plays and makes cold-producing medium lead to the effect that A is ordered from the B point, and does not play its effect of passing through in the opposite direction that makes, thereby A point and B point can not be interconnected when compressor 10 stops.Therefore, be communicated with A point and B point and C point to bridge-type device 50 shown in Figure 3, open the valve 12 that makes a circulation then, then also can realize pressure balance at short notice between A point and the E point so that C point, D point, D ' and E point are interconnected if open Fig. 1 this moment.
In addition, whether control part 60 receives from compressor 10 is the signal that stops, and described bridge-type device 50 is opened in the given time when compressor stops, to realize the pressure balance of pipe arrangement.
The following describes pressure equilibrium control method according to air conditioner provided by the present invention.
The schematic diagram of the air conditioner pressure equilibrium control method that Fig. 4 is provided for the foundation various embodiments of the present invention, if flow chart with reference to Fig. 4, when air conditioner stops owing to the user or reaches design temperature and reason such as quit work automatically when causing compressor to stop, control part judges that whether compressor is for stopping (100), if do not stop, then continue normal operation (101), if compressor for stopping, then being opened circuitous device (102).So, connected graph 1 is to A point shown in Figure 3, B point and C point.
In addition, control part judge compressor stop after whether through 1 minute (200), if through one minute, then open circuitous valve (201).So circuitous valve is all opened, then can be at Fig. 1 to A point shown in Figure 3, B point, C point, D point, D ' and E point realization pressure balance.
If through 3 minutes (300), then the bridge-type device is closed (301), and the valve that will make a circulation also cuts out (302) after compressor stops.At this moment, whether again control part judges compressor task (400), if from the beginning task more then carries out aforesaid control method more repeatedly.
Aforesaid foundation air conditioner provided by the present invention and pressure equilibrium control method thereof, by In realizing fast between outdoor pusher side and the pipe arrangement or the pressure between high-pressure side pipe arrangement and the low-pressure side pipe arrangement Dynamic balance, thus prevent the phenomenon that cold-producing medium that compressor discharges flows backwards, and can reduce compressor Load and make compressor normal operation.
Claims (11)
1, a kind of air conditioner is characterized in that comprising:
Have the compressor that is used for compressed refrigerant, be used for the high-voltage tube that high-pressure refrigerant that described compressor discharges flows and be used for to be inhaled into the off-premises station of the low-voltage tube that the low pressure refrigerant of described compressor flows;
First pipe arrangement and second pipe arrangement that is connected described low-voltage tube and indoor set that connect described high-voltage tube and indoor set;
What be arranged at described high-voltage tube is used to control pressure balanced bridge-type device between described first pipe arrangement and described second pipe arrangement;
Control part is used for closing described bridge-type device when described compressor is operation, and opens described bridge-type device when described compressor stops.
2, air conditioner according to claim 1, it is characterized in that described off-premises station further comprises pass-over offset that is communicated with described compressor discharge port side and sucks oral-lateral and the circuitous valve that is used to open and close described pass-over offset, and described control part is opened described circuitous valve for to close described circuitous valve when described compressor operating when described compressor stops.
3, air conditioner according to claim 1 and 2 it is characterized in that described bridge-type device is the cold-producing medium control valve that is used to control flow of refrigerant, and described cold-producing medium control valve is for to be opened in the given time when described compressor stops.
4, air conditioner according to claim 1 and 2 it is characterized in that described bridge-type device is to be used to control the outside expansion valve that cold-producing medium expands or circulates, and described outside expansion valve is for to be opened in the given time when described compressor stops.
5, air conditioner according to claim 1 and 2, it is characterized in that described bridge-type device is the bridge valve that is used to open and close bridge pipe, this bridge pipe was controlled the outside expansion valve of cold-producing medium expansion or circulation and is communicated with described first pipe arrangement side and described compressor discharge port side for circuitous being used to, and described bridge valve is for to be opened in the given time when described compressor stops.
6, air conditioner according to claim 1 and 2 is characterized in that described off-premises station has more than two.
7, the pressure equilibrium control method of air conditioner, comprise and have compressor, be used for the high-voltage tube that high-pressure refrigerant that described compressor discharges flows and be used for being inhaled into the off-premises station of the low-voltage tube that the low pressure refrigerant of described compressor flows, it is characterized in that comprising step:
Judge that whether described compressor is for stopping;
When described compressor stops, will being used for first pipe arrangement of the described high-voltage tube of control connection and indoor set and the pressure balanced bridge-type device that is connected between second pipe arrangement of described low-voltage tube and indoor set is opened;
The circuitous valve that will be used to open and close the pass-over offset that connects described compressor discharge port side and suction oral-lateral is opened.
8, method according to claim 7 it is characterized in that described bridge-type device is the cold-producing medium control valve that is used to control flow of refrigerant, and described cold-producing medium control valve is for to be opened in the given time when described compressor stops.
9, method according to claim 7 it is characterized in that described bridge-type device is to be used to control the outside expansion valve that cold-producing medium expands or circulates, and described outside expansion valve is for to be opened in the given time when described compressor stops.
10, method according to claim 7, it is characterized in that described bridge-type device is the bridge valve that is used to open and close bridge pipe, this bridge pipe was controlled the outside expansion valve of cold-producing medium expansion or circulation and is communicated with described first pipe arrangement side and described compressor discharge port side for circuitous being used to, and described bridge valve is for to be opened in the given time when described compressor stops.
11,, it is characterized in that described off-premises station has more than two according to the described method of claim 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050096781 | 2005-10-14 | ||
| KR1020050096781A KR101187709B1 (en) | 2005-10-14 | 2005-10-14 | Air conditioner and its control method for the pressure equilibrium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1948868A true CN1948868A (en) | 2007-04-18 |
| CN100436970C CN100436970C (en) | 2008-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101153039A Active CN100436970C (en) | 2005-10-14 | 2005-11-14 | Air conditioner and its control method for the pressure equilibrium |
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| KR (1) | KR101187709B1 (en) |
| CN (1) | CN100436970C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI468628B (en) * | 2011-11-21 | 2015-01-11 | Ind Tech Res Inst | Easy pipe arranging device, air conditioning equipment using the same and refrigerant leakage detecting method thereof |
| CN108469126A (en) * | 2013-01-31 | 2018-08-31 | 日立江森自控空调有限公司 | Outdoor unit and the freezing cycle device for using the outdoor unit |
| CN112178802A (en) * | 2020-09-30 | 2021-01-05 | 青岛海尔空调器有限总公司 | Method and device for determining installation position of air conditioner outdoor unit and air conditioner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102008718B1 (en) * | 2013-01-23 | 2019-08-09 | 엘지전자 주식회사 | An air conditioner and a control method the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2902853B2 (en) * | 1992-04-27 | 1999-06-07 | 三洋電機株式会社 | Air conditioner |
| JP3260681B2 (en) * | 1997-12-26 | 2002-02-25 | 三菱電機株式会社 | Air conditioner using non-azeotropic mixed refrigerant and operation control method of the air conditioner |
| KR100395920B1 (en) * | 2000-06-07 | 2003-08-27 | 삼성전자주식회사 | Control system for starting of air conditioner and control method thereof |
| JP2002340435A (en) * | 2001-05-16 | 2002-11-27 | Sanyo Electric Co Ltd | Air conditioner |
| KR20050017507A (en) * | 2003-08-14 | 2005-02-22 | 삼성전자주식회사 | Multi chamber type air conditioner and control method thereof |
| KR100560683B1 (en) * | 2003-08-18 | 2006-03-16 | 삼성전자주식회사 | Air conditioner and control method thereof |
| KR100889823B1 (en) * | 2003-09-04 | 2009-03-20 | 삼성전자주식회사 | Compressor Control Device, Air Conditioner And Control Method Thereof |
| KR20050060562A (en) * | 2003-12-16 | 2005-06-22 | Samsung Electronics Co Ltd | A multi-type air conditioning system |
-
2005
- 2005-10-14 KR KR1020050096781A patent/KR101187709B1/en active IP Right Grant
- 2005-11-14 CN CNB2005101153039A patent/CN100436970C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI468628B (en) * | 2011-11-21 | 2015-01-11 | Ind Tech Res Inst | Easy pipe arranging device, air conditioning equipment using the same and refrigerant leakage detecting method thereof |
| CN108469126A (en) * | 2013-01-31 | 2018-08-31 | 日立江森自控空调有限公司 | Outdoor unit and the freezing cycle device for using the outdoor unit |
| CN112178802A (en) * | 2020-09-30 | 2021-01-05 | 青岛海尔空调器有限总公司 | Method and device for determining installation position of air conditioner outdoor unit and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100436970C (en) | 2008-11-26 |
| KR101187709B1 (en) | 2012-10-04 |
| KR20070041060A (en) | 2007-04-18 |
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