CN207230987U - A kind of air-conditioning system and air conditioner - Google Patents
A kind of air-conditioning system and air conditioner Download PDFInfo
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- CN207230987U CN207230987U CN201720943575.6U CN201720943575U CN207230987U CN 207230987 U CN207230987 U CN 207230987U CN 201720943575 U CN201720943575 U CN 201720943575U CN 207230987 U CN207230987 U CN 207230987U
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Abstract
The utility model provides a kind of air-conditioning system and air conditioner, and air-conditioning system includes rotor-type compressor, four-way valve, outdoor heat exchanger, indoor heat exchanger, No leakage heating power expansion valve, one-way throttle short tube, solenoid valve, indoor wind turbine and outside wind turbine.No leakage heating power expansion valve is turned in compressor operation, is then ended in compressor shutdown.No leakage heating power expansion valve and one-way throttle short tube are one-way throttle element.Solenoid valve is connected in parallel on the import and export of No leakage heating power expansion valve, or suction installed in rotor-type compressor, between exhaust outlet.With reference to the control program of the utility model solenoid valve can be made to be automatically turned in the several seconds before compressor start, after compressor start and just shut down when then remain turned-off.The utility model can make full use of the waste cold or waste heat in indoor heat exchanger during compressor shutdown, improve refrigerating efficiency, while the system high-low pressure before compressor start can be made fully to be balanced, and avoid compressor band pressure difference from starting.
Description
Technical field
Refrigeration and air-conditioning technical field is the utility model is related to, in particular to a kind of air-conditioning system and air conditioner.
Background technology
At present, in the related art, the refrigeration compressor that constant speed air-conditioning system uses works as interior due to being constant speed drive
Thermic load be less than compressor refrigerating capacity when, compressor must continuous start and stop, could so maintain indoor temperature substantially perseverance
Fixed, the frequent start-stop of compressor causes refrigerating efficiency of the refrigeration system in sub-load to reduce, and annual energy efficiency declines.Separately
On the one hand, since conventional air-conditioning system is used as restricting element using capillary, electric expansion valve, heating power expansion valve etc. mostly,
Due to these restricting elements in compressor shutdown without the ability complete switched off, when compressor is just out of service,
On high-tension side refrigerant will flow to low-pressure side rapidly by restricting element, make on high-tension side high temperature refrigerant and the low temperature of low-pressure side
Refrigerant mixes rapidly, and the high-low pressure of system quickly reaches the state of complete equipilibrium.Although the complete equipilibrium of high-low pressure has
It is again started up beneficial to compressor and (startup impact will not be produced), but have lost the refrigerating capacity or heating capacity of air-conditioning system.Example
As in cooling mode, when compressor is just shut down, the refrigerant in evaporator is still within the state of low-temp low-pressure, still has
Certain sweat cooling ability, the high-temperature high-pressure refrigerant balance if at this moment and in condenser, undoubtedly just have lost steaming
Send out refrigerating capacity possessed by this some refrigerant in device.Situation is similar in a heating mode, only at this moment loses
It is the heating capacity of the refrigerant in condenser.
Waste cold or waste heat during in order to make full use of compressor shutdown in indoor heat exchanger, further improve air-conditioning system
Annual energy efficiency, the pipeline between indoor heat exchanger and outdoor heat exchanger can be blocked, together in compressor shutdown
When keep indoor fan operating.At this time since the pipeline among indoor heat exchanger and outdoor heat exchanger is blocked, room
Refrigerant in the heat exchanger of outside cannot be mixed with the refrigerant in indoor heat exchanger immediately, the refrigeration in indoor heat exchanger
Agent in a period of time after compressor shutdown just still have supply waste cold (in cooling mode) or supply waste heat ability (
Under heating mode), so as to by the air circulation of indoor wind turbine, continue to indoor cooling or heat supply for a period of time.
Existing air-conditioning system, in compressor shutdown, makes the refrigerant of high and low pressure side block commonly used method, is
One fluid path solenoid valve of series connection between the outdoor heat exchanger and restricting element of refrigeration system.When the compressor is operating, fluid path
Solenoid valve is kept it turned on, systems stay refrigerating operaton；When compressor is out of service, fluid path solenoid valve is accordingly turned off, and is made at this time
Refrigerant line is cut off, and the low-temperature refrigerant in the side heat exchanger that can make to stay within continues to supply waste cold.Though such a method than
It is relatively simple, a variety of restricting elements, such as heating power expansion valve, capillary, restriction sleeve are adapted to, but since fluid path solenoid valve is pacified
On the main fluid path of refrigerant, the flow for flowing through solenoid valve valve port is larger, it is desirable to the valve body of solenoid valve must very it is big, and
Larger solenoid valve cost is higher so that the cost of whole air-conditioning system greatly increases.Further, since this method is to compress
Machine completely cuts through the pipeline between indoor external heat exchanger when shutting down, high and low pressure cannot be balanced, therefore in compressor again
During startup, larger startup will can be brought to impact to compressor, thus may be only available for the compression insensitive to switch DP
Machine (such as screw compressor with flexible scroll plate), and cannot be used for that staring torque is small, rotor to switch DP sensitivity
Formula compressor.For the air-conditioning system using rotor-type compressor, if during compressor shutdown should being made full use of
Waste cold or waste heat, and ensure the security that compressor is again started up, just have to make improvements prior art.
Utility model content
The utility model is intended at least solve one of technical problem present in the prior art or correlation technique.
For this reason, the first aspect of the utility model proposes a kind of air-conditioning system.
The second aspect of the utility model proposes a kind of air conditioner.
In view of this, the first aspect of the utility model provides a kind of air-conditioning system, including：Rotor-type compressor, four
Port valve, outdoor heat exchanger, No leakage heating power expansion valve, solenoid valve, one-way throttle short tube, indoor heat exchanger, outdoor crosswind
Machine and indoor wind turbine.Rotor-type compressor includes air inlet and exhaust outlet；The first interface of four-way valve is connected with exhaust outlet,
The second interface of four-way valve is connected with air inlet；One end of outdoor heat exchanger is connected with the 3rd interface of four-way valve；Nothing
One end of leakage heating power expansion valve is connected with the other end of outdoor heat exchanger；One end of indoor heat exchanger and No leakage heat
The other end of power expansion valve is connected, and the other end of indoor heat exchanger is connected with the 4th interface of four-way valve；Solenoid valve
Both ends are connected with outdoor heat exchanger and indoor heat exchanger respectively；One end of one-way throttle short tube and No leakage thermal expansion
One end of valve is connected, and the other end is connected with indoor heat exchanger.
Air-conditioning system provided by the utility model, by setting nothing between outdoor heat exchanger and indoor heat exchanger
Heating power expansion valve is leaked, normal throttling expansion can be played the role of when rotor-type compressor is run, and is compressed in rotator type
When machine is out of service, play the role of blocking the pipeline between indoor heat exchanger and outdoor heat exchanger.At air-conditioning system
When cooling operation mode, due to when rotor-type compressor is out of service, among indoor heat exchanger and outdoor heat exchanger
Pipeline be blocked, the high-temperature high-pressure refrigerant in outdoor heat exchanger cannot be immediately entered in indoor heat exchanger, indoor
Refrigerant in the heat exchanger of side, still in the relatively low state of temperature, still has from air in a period of time after compressor shutdown
The ability of middle heat absorption, therefore can still be continued within a certain period of time by the air circulation of indoor wind turbine to indoor cooling.When
Air-conditioning system is in as the same during reverse heating operation mode, and when rotor-type compressor is shut down, refrigerant, which is blocked, can then fill
Divide the waste heat using indoor heat exchanger.Making full use of for waste cold or waste heat, can effectively lift the refrigeration or system of air-conditioning system
The thermal efficiency so that annual energy efficiency greatly improves；And since compressor is when out of service, wind turbine remains to continue to supply cold
Wind or hot wind, make the shutdown of the imperceptible compressor of user, thus can lift the experience sense of user.Meanwhile by setting electricity
Magnet valve, within time several seconds before compressor start, first opens solenoid valve, outdoor heat exchanger and indoor heat exchanger are led
It is logical, the pressure differential between outdoor heat exchanger and indoor heat exchanger is reduced, rotor-type compressor band pressure difference is avoided and starts, carry
High the startup security of rotor-type compressor and the stability of air-conditioning system.Since solenoid valve is not arranged in the master of refrigerant
In circulation loop, but it is parallel relationship between No leakage heating power expansion valve, solenoid valve only opens number before compressor start
Second, closed after compressor start, therefore can effectively reduce the volume of solenoid valve, effectively reduce the cost of air-conditioning system.
The installation site of solenoid valve can have second scheme.Except above-mentioned two interfaces by solenoid valve are let out with nothing respectively
Beyond two interfaces of leakage thermodynamic valve are connected in parallel, two interfaces of solenoid valve can also be connected on rotor-type compressor respectively
Air entry and exhaust outlet between.
In any of the above-described technical solution, it is preferable that air-conditioning system further includes：Control device, control device and solenoid valve
It is connected, to control opening or closing for solenoid valve.
In the technical scheme, by setting control device to control solenoid valve so that solenoid valve is only before compressor start
Time several seconds in opened, and be automatically closed after compressor start, realize and solenoid valve is automatically controlled.
In any of the above-described technical solution, it is preferable that control device includes：The time relay, the control of the time relay
End is connected with the power supply of air-conditioning system, and the delay break contact of the time relay is connected with electromagnetic valve coil, time relay
The timing closing contact of device is connected with the power cord of compressor.
In the technical scheme, by the way that the control terminal of the time relay is connected with the power supply of air-conditioning system, the time after
The delay break contact of electric appliance is connected with electromagnetic valve coil, the timing closing contact of the time relay and the power cord of compressor
It is connected so that preparing to start compressor, when powering to compressor, triggered time relay starts, and the time relay prolongs
When break contact turn on, to solenoid valve power, solenoid valve conduction, so that outdoor heat exchanger is led with indoor heat exchanger
It is logical so that the pressure between outdoor heat exchanger and indoor heat exchanger gradually tends to balance state, at this time the time relay
Timing closing contact is to disconnect, and compressor does not start.After scheduled duration, outdoor heat exchanger and indoor heat exchanger
Between pressure differential reduce, the delay break contact of the time relay disconnects, and solenoid valve is closed, and the delay of the time relay is closed
Conjunction contact closes, compressor start, and the pressure of outdoor heat exchanger and indoor heat exchanger has already passed through balance, pressure differential at this time
It is smaller, it can effectively ensure that the startability of compressor.The start-up mode of this kind of compressor can be at the same time suitable for air-conditioning system
Refrigeration and heating mode.
In any of the above-described technical solution, it is preferable that control device further includes：Intermediate relay, the control of intermediate relay
End processed is connected with the timing closing contact of the time relay, and the normally opened contact of intermediate relay is connected with the power cord of compressor
Connect.
In the technical scheme, in the control line of the timing closing contact access intermediate relay of the time relay, will press
The normally opened contact of the power cord access intermediate relay of contracting machine, the timing closing contact control intermediate relay of the time relay
The closure of normally opened contact or disconnection, the timing closing contact of the time relay need not pass through larger current, you can realize centering
Between relay be controlled, and the maximum current that the intermediate relay of different model allows to pass through is also different, so only
It need to select the time relay being consistent with the operating current of compressor that the control to compressor can be achieved.By by time relay
The timing closing contact of device is connected by intermediate relay with the power cord of compressor, avoids the timing closing of the time relay
The maximum current that contact allows to pass through produces limitation to the power of compressor so that this kind of control mode is applicable to bigger work(
The compressor of rate, effectively improves the scope of application of air-conditioning system.
In any of the above-described technical solution, it is preferable that delay break contact and timing closing contact delay when grow up
In or equal to 1 second, and less than or equal to 60 seconds.
In the technical scheme, by the way that the duration of delay is arranged to 1 second to 60 seconds, ensuring effectively on the outside of balance cylinder
While pressure differential between heat exchanger and indoor heat exchanger, and the air-conditioning system available machine time will not be caused long and influence to use
The experience sense at family.
In any of the above-described technical solution, the outer balance pipe of No leakage heating power expansion valve and the other end of indoor heat exchanger
It is connected, the temperature sensing package of No leakage heating power expansion valve and the other end of indoor heat exchanger fit.No leakage heating power expansion valve
Only play one-way throttle, it can just play throttling only when refrigerant flows to indoor heat exchanger by outdoor heat exchanger and make
With, and when refrigerant when indoor heat exchanger flows to outdoor heat exchanger its not throttling action, only play circulation.
In any of the above-described technical solution, air-conditioning system further includes：One-way throttle short tube, one end of one-way throttle short tube with
Indoor heat exchanger is connected, and the other end is connected with No leakage heating power expansion valve.One-way throttle short tube also only has one-way throttle
Ability.When refrigerant flows to outdoor heat exchanger by indoor heat exchanger, one-way throttle short tube plays throttling action；Work as refrigerant
When flowing to indoor heat exchanger by outdoor heat exchanger, one-way throttle short tube does not play throttling action, and only circulation acts on.
The second aspect of the utility model provides a kind of air conditioner, including the air-conditioning as described in any of the above-described technical solution
System, therefore, the air conditioner have whole beneficial effects of the air-conditioning system described in any of the above-described technical solution.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 shows the structure diagram of the air-conditioning system of one embodiment according to the present utility model；
Fig. 2 shows the structure diagram of the air-conditioning system of another embodiment according to the present utility model；
Fig. 3 shows the schematic diagram of the control device of one embodiment according to the present utility model；
Fig. 4 shows the schematic diagram of another control device of one embodiment according to the present utility model.
Wherein, the correspondence between the reference numeral in Fig. 1 to Fig. 4 and component names is：
102 rotor-type compressors, 104 four-way valves, 106 outdoor heat exchangers, 108 indoor heat exchangers, 110 No leakages heat
Power expansion valve, 112 solenoid valves, 114 one-way throttle short tubes, 116 temperature sensing packages, 118 outer balance pipes, 120 outside wind turbines, Room 122
Inner side wind turbine, the delay break contact of 124 time relays, the control terminal of 126 time relays, 128 time relays prolong
When close contact, 130 electromagnetic valve coils, the normally opened contact of 132 intermediate relays, the control terminal of 134 intermediate relays.
Embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the case where there is no conflict, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
New to be implemented using other different from other modes described here, therefore, the scope of protection of the utility model is simultaneously
From the limitation of following public specific embodiment.
In the utility model first aspect embodiment, as shown in Figure 1, the utility model provides a kind of air-conditioning system,
Including：Rotor-type compressor 102, four-way valve 104, outdoor heat exchanger 106, No leakage heating power expansion valve 110, one-way throttle are short
Pipe 114, indoor heat exchanger 108, solenoid valve 112, outside wind turbine 120, indoor wind turbine 122.Rotor-type compressor 102 wraps
Include air inlet and exhaust outlet；The first interface of four-way valve 104 is connected with exhaust outlet, the second interface of four-way valve 104 and air inlet
Mouth is connected；One end of outdoor heat exchanger 106 is connected with the 3rd interface of four-way valve 104；No leakage heating power expansion valve 110
One end be connected with the other end of outdoor heat exchanger 106；One end of indoor heat exchanger 108 and No leakage heating power expansion valve
110 other end is connected, and the other end of indoor heat exchanger 108 is connected with the 4th interface of four-way valve 104；Solenoid valve
Both ends of 112 both ends respectively with 108 No leakage heating power expansion valve 110 of outdoor heat exchanger indoor heat exchanger are connected；Nothing
The outer balance pipe 118 of leakage heating power expansion valve 110 is connected with the other end of the second heat exchanger 108, No leakage heating power expansion valve
110 temperature sensing package 116 and the other end of the second heat exchanger 108 fit；One end of one-way throttle valve 114 and the second heat exchanger
108 are connected, and the other end is connected with No leakage heating power expansion valve 110.No leakage heating power expansion valve 110 only plays one-way throttle work
With it only can just play throttling action when refrigerant flows to indoor heat exchanger by outdoor heat exchanger, and work as refrigerant
When indoor heat exchanger flows to outdoor heat exchanger its not throttling action, only play circulation.One-way throttle valve 114 is also only
Play one-way throttle, when refrigerant flows to outdoor heat exchanger by indoor heat exchanger, one-way throttle short tube plays throttling and makees
With；It is on the contrary then do not play throttling action, only play circulation.
As an alternative embodiment of the utility model, as shown in Fig. 2, being to be connected at the both ends of solenoid valve 112 respectively
Between the air entry and exhaust outlet of rotor-type compressor 102, it is possible to achieve similar function in scheme shown in Fig. 1.
In one embodiment of the utility model, it is preferable that air-conditioning system further includes：Control device, control device with
Electromagnetic valve coil 130 is connected, to control the energization of electromagnetic valve coil 130 or power-off, and then control solenoid valve 112 opening or
Close.When electromagnetic valve coil 130 is powered, solenoid valve 112 turns on；When electromagnetic valve coil 130 powers off, solenoid valve 112 is closed.
In this embodiment, by setting control device to control electromagnetic valve coil 130 so that electromagnetic valve coil 130 only exists
Rotor-type compressor 102 is powered before starting, and is automatically powered off after the startup of rotor-type compressor 102, so as to fulfill to electricity
Magnet valve 112 automatically controls.
In one embodiment of the utility model, it is preferable that as shown in figure 3, control device includes：The time relay,
The control terminal 126 of the time relay is connected with the power supply of air-conditioning system, the delay break contact 124 and electromagnetism of the time relay
Valve coil 130 is connected, and the timing closing contact 128 of the time relay is connected with the power cord of rotor-type compressor 102.
In this embodiment, by the way that the control terminal 126 of the time relay is connected with the power supply of air-conditioning system, the time after
The delay break contact 124 of electric appliance is connected with electromagnetic valve coil 130, the timing closing contact 128 of the time relay and rotor
The power cord of formula compressor 102 is connected so that is preparing to start rotor-type compressor 102, is powering to rotor-type compressor 102
When, triggered time relay starts, and the delay break contact 124 of the time relay is turned on, powered to electromagnetic valve coil 130, electricity
Magnet valve 112 turns on.So that outdoor heat exchanger 106 is turned on indoor heat exchanger 108, outdoor heat exchanger 106 and indoor
Pressure between heat exchanger 108 gradually tends to balance state.The timing closing contact 128 of the time relay, which is in, at this time disconnects shape
State, rotor-type compressor 102 do not start.After scheduled duration, outdoor heat exchanger 106 and indoor heat exchanger 108 it
Between pressure differential reduce, the delay break contact 124 of the time relay disconnects, and electromagnetic valve coil 130 powers off, and solenoid valve 112 closes
Close, while the timing closing contact 128 of the time relay closes, rotor-type compressor 102 starts.Outdoor heat exchanger at this time
106 and the pressure of indoor heat exchanger 108 have already passed through balance, pressure differential is smaller, effectively ensures that opening for rotor-type compressor
Dynamic performance, the start-up mode of this kind of rotor-type compressor can be suitable for the refrigeration and heating mode of air-conditioning system at the same time.
In one embodiment of the utility model, it is preferable that as shown in figure 4, control device further includes：Middle relay
Device, the control terminal 134 of intermediate relay are connected with the timing closing contact 128 of the time relay, intermediate relay it is normally opened
Contact 132 is connected with the power cord of rotor-type compressor.
In this embodiment, the timing closing contact 128 of the time relay is accessed in the control line of intermediate relay, will be turned
The normally opened contact 132 of the power cord access intermediate relay of minor compressor, the timing closing contact 128 of the time relay controls
The closure of the normally opened contact 132 of intermediate relay or disconnection, the timing closing contact 128 of the time relay need not be by larger
Electric current, you can realization is controlled intermediate relay, and the intermediate relay of different model allows the maximum current passed through
And it is different, so intermediate relay i.e. achievable pair that need to only select the operating current with rotor-type compressor 102 to be consistent
The control of rotor-type compressor 102.By the way that the timing closing contact 128 of the time relay is passed through intermediate relay and rotator type
The power cord of compressor is connected, and avoids the maximum current that the timing closing contact 128 of the time relay allows to pass through to turning
The power of minor compressor 102 produces limitation so that this kind of control mode is applicable to more powerful rotor-type compressor, has
Improve to effect the scope of application of air-conditioning system.
In one embodiment of the utility model, it is preferable that delay break contact 124 and timing closing contact 128
Delay duration is greater than or equal to 1 second, and less than or equal to 60 seconds.
In this embodiment, by the way that the duration of delay is arranged to 1 second to 60 seconds, ensuring effectively to change on the outside of balance cylinder
While pressure differential between hot device 106 and indoor heat exchanger 108, and the air-conditioning system available machine time will not be caused long and shadow
Ring the experience sense of user.
Elaborate individually below for the operation principle of system under refrigeration mode and heating mode：
(1) refrigeration mode is run
(and combining Fig. 3) as shown in Figure 1, in cooling mode, when rotor-type compressor 102 is in operating status, electricity
Magnet valve coil 130 powers off, and solenoid valve 112 is closed, while outside wind turbine 120 is run, and indoor wind turbine 122 is transported
OK.The workflow of system is at this time：Refrigerant gas is after the compression of rotor-type compressor 102, pressure rise, by four-way valve
104 first interface, the 3rd interface, flow into outdoor heat exchanger 106.In outdoor heat exchanger 106, refrigerant gas condensation
Into the liquid of high temperature and pressure, and heat is released, liberated heat is taken away by the air of 120 forced convection of outside wind turbine.Refrigeration
Agent liquid throttles by No leakage heating power expansion valve 110, becomes the gas-liquid mixture of low pressure, then by one-way throttle short tube 114
(at this time without throttle effect), gets in side heat exchanger 108.Indoors in side heat exchanger 108, the refrigerant air-liquid mixing of two-phase
Thing evaporation endothermic.Indoor wind turbine 122 makes indoor air convection current flow through indoor heat exchanger 108, by indoor heat exchanger 108
Temperature reduces after heat absorption, becomes cold air, so as to indoor cooling.Refrigerant air-liquid mixture after evaporation becomes refrigerant gas
Body, this refrigerant gas then return to the air entry of compressor via the 4th interface of four-way valve 104, second interface, and again
Compressed, so moved in circles.In compressor operating, since rotor-type compressor 102 continuously exchanges heat toward outside
Refrigerant is conveyed in device 106 so that the pressure difference between outdoor heat exchanger 106 and indoor heat exchanger 108 is higher than No leakage warm
The starting differential pressure of power expansion valve 110, thus refrigerant can be flowed through from the spool of No leakage heating power expansion valve 110, can be produced
Raw throttle effect.
When rotor-type compressor 102 is out of service, outside wind turbine 120 stops running immediately, but indoor wind turbine 122
Continue to run with.At this time since rotor-type compressor 102 is out of service, between outdoor heat exchanger 106 and indoor heat exchanger 108
Pressure difference be not enough to overcome the starting differential pressure of No leakage heating power expansion valve 110, the valve port of No leakage heating power expansion valve 110 will be in
Completely closed state, so that high-temperature high-pressure refrigerant is limited in outdoor heat exchanger 106, the refrigerant of low-temp low-pressure is limited
System is indoors in side heat exchanger 108.But since the refrigerant in indoor heat exchanger 108 still keeps low temperature within a certain period of time,
Still there is the ability from room air heat absorption, thus can be continued by the air circulation of indoor wind turbine 122 to indoor cooling,
So as to improve the refrigerating efficiency of system, and lift the experience sense of user.
When rotor-type compressor 102 prepares to start again, the master controller of air-conditioning system sends enabling signal, solenoid valve
The delay break contact 124 of coil 130 passage time relay must be electric, and electromagnetic valve coil 130 produces electromagnetic force, makes solenoid valve
112 conductings, the high-pressure refrigerant in outdoor heat exchanger 106 will be bypassed to indoor heat exchanger 108 by solenoid valve 112 at this time
In, the pressure in outdoor heat exchanger 106 and indoor heat exchanger 108 will tend to balance.When high-low pressure equilibration time reaches
During the delay time of the time relay, the pressure difference between outdoor heat exchanger 106 and indoor heat exchanger 108 is reduced to rotator type
Pressure difference perhaps is filled in the startup of compressor 102.When time relay delay time then, the delay break contact 124 of the time relay
Disconnect, electromagnetic valve coil 130 powers off, and solenoid valve 112 is closed, and exits bypass state；The timing closing of the time relay is touched at the same time
The closure of point 128, rotor-type compressor 102 power on operation, reenter normal refrigerating state.
(2) heating mode is run
(and combining Fig. 3) as shown in Figure 1, in a heating mode, when rotor-type compressor 102 is in operating status, electricity
Magnet valve coil 130 powers off, and solenoid valve 112 is closed, while outside wind turbine 120 is run, and indoor wind turbine 122 is transported
OK.The workflow of system is at this time：Refrigerant gas is after the compression of rotor-type compressor 102, pressure rise, by four-way valve
104 first interface, the 4th interface, flow into indoor heat exchanger 108.Indoors in side heat exchanger 108, refrigerant gas condensation
Into the liquid of high temperature and pressure, while discharge heat.Indoor wind turbine 122 makes indoor air convection current flow through indoor heat exchanger
108,108 liberated heat of indoor heat exchanger is taken away, with to indoor heating.Condensed refrigerant liquid then passes through unidirectionally
114 reducing pressure by regulating flow of restriction sleeve, becomes the gas-liquid mixture of low pressure, then by No leakage heating power expansion valve 110 (at this time without throttling
Effect), into outdoor heat exchanger 106.In outdoor heat exchanger 106, the refrigerant air-liquid mixture evaporation of two-phase, absorbs
By the heat in the air of 120 forced convection of outside wind turbine.Refrigerant after evaporation completely becomes gas, this refrigerant gas
The air entry of compressor then is returned via the 3rd interface of four-way valve 104, second interface, and is compressed again, so circulation
Back and forth.
When rotor-type compressor 102 is out of service, outside wind turbine 120 stops running immediately, but indoor wind turbine 122
Continue to run with.At this time since compressor stops, the pressure difference between indoor heat exchanger 108 and outdoor heat exchanger 106 is not enough to
Overcome the starting differential pressure of No leakage heating power expansion valve 110, the valve port of No leakage heating power expansion valve 110, which will be in, completely closes shape
State, so that high-temperature high-pressure refrigerant is limited in indoor heat exchanger 108, outside is limited in by the refrigerant of low-temp low-pressure
In heat exchanger 106.Since the refrigerant in indoor heat exchanger 108 still keeps high temperature within a certain period of time, have to Interior Space
The ability of gas heating, thus can be continued by the air circulation of indoor wind turbine 122 to indoor heating, so as to improve system
Heating efficiency, and improve the experience sense of user.
When rotor-type compressor 102 prepares to start again, the master controller of air-conditioning system sends enabling signal, solenoid valve
The delay break contact 124 of coil 130 passage time relay must be electric, and electromagnetic valve coil 130 produces electromagnetic force, makes solenoid valve
112 conductings, the high-pressure refrigerant in indoor heat exchanger 108 will be bypassed to outdoor heat exchanger 106 by solenoid valve 112 at this time
In, the pressure in indoor heat exchanger 108 and outdoor heat exchanger 106 will tend to balance.When high-low pressure equilibration time reaches
During the delay time of the time relay, the pressure difference between indoor heat exchanger 108 and outdoor heat exchanger 106 is reduced to rotator type
Pressure difference perhaps is filled in the startup of compressor 102.When time relay delay time then, the delay break contact 124 of the time relay
Disconnect, electromagnetic valve coil 130 powers off, and solenoid valve 112 is closed, and exits bypass state；The timing closing of the time relay is touched at the same time
The closure of point 128, rotor-type compressor 102 power on operation, reenter normal heating state.
In alternative embodiment as shown in Figure 2, the both ends of solenoid valve 112 are connected on the suction of rotor-type compressor 102 respectively
Between gas port and exhaust outlet, high-low pressure equilibrium function as described above can be equally realized.In cooling mode, in rotator type
Before compressor 102 starts, turn on solenoid valve 112, the high-pressure refrigerant in outdoor heat exchanger 106 passes through four-way successively at this time
3rd interface of valve 104, the second interface of four-way valve 104, solenoid valve 112, the first interface of four-way valve 104, four-way valve 104
4th interface, flows into indoor heat exchanger 108, so as to fulfill the balance of high-low pressure；In a heating mode, compressed in rotator type
Before machine 102 starts, turn on solenoid valve 112, the high-pressure refrigerant in indoor heat exchanger 108 passes through four-way valve successively at this time
104 the 4th interface, the first interface of four-way valve 104, solenoid valve 112, the second interface of four-way valve 104, the of four-way valve 104
Three interfaces, into outdoor heat exchanger 106, so as to fulfill the balance of high-low pressure.
It can be seen from the above description that using technical solution described in the utility model, no matter in refrigeration and heating operation
Under pattern, it can realize and realize that high-low pressure is blocked when compressor is just shut down, to make full use of waste cold or waste heat；And compressing
When machine will start, and bypass release can be carried out in advance, compressor is avoided startup with pressure.Particularly suitable for switch DP ratio
Occasion more sensitive, staring torque is bigger, especially for rotor-type compressor.The control circuit letter of the utility model
It is single, it increase only a bypass solenoid valve and a time relay, it is not necessary to replace main control loop, the control of former air-conditioning system
Device hardware processed and control program, it is only necessary to by the timing closing contact series of the time relay on the startup circuit of compressor i.e.
Can, have the advantages that cost is low, applied widely.
In the second aspect embodiment of the utility model, the utility model provides a kind of air conditioner, including such as above-mentioned
Air-conditioning system described in any technical solution, therefore, the air conditioner have the air-conditioning system described in any of the above-described technical solution
Whole beneficial effects.
In the description of the utility model, term " connection ", " installation ", " fixation " etc. should all be interpreted broadly, for example,
" connection " can be fixedly connected or be detachably connected, or be integrally connected；It can be directly connected, can also lead to
Intermediary is crossed to be indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
In the description of the utility model, term " one embodiment ", " some embodiments ", " specific embodiment " etc. are retouched
State and mean that combining the particular features, structures, materials, or characteristics that the embodiment or example describe is contained in the utility model at least
In one embodiment or example.In the utility model, schematic expression of the above terms is not necessarily referring to identical reality
Apply example or example.Moreover, the particular features, structures, materials, or characteristics of description can in any one or more embodiments or
Combined in an appropriate manner in example.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (11)
- A kind of 1. air-conditioning system, it is characterised in that including：Rotor-type compressor, the compressor include air inlet and exhaust outlet；Four-way valve, the first interface of the four-way valve are connected with the exhaust outlet, the second interface of the four-way valve with it is described Air inlet is connected；Outdoor heat exchanger, one end of the outdoor heat exchanger are connected with the 3rd interface of the four-way valve；No leakage heating power expansion valve, one end of the No leakage heating power expansion valve are connected with the other end of the outdoor heat exchanger It is logical；Indoor heat exchanger, one end of the indoor heat exchanger are connected with the other end of the No leakage heating power expansion valve, The other end of the indoor heat exchanger is connected with the 4th interface of the four-way valve；One-way throttle short tube, the both ends of the one-way throttle short tube exchange heat with the No leakage heating power expansion valve and indoor respectively Device is connected；Solenoid valve；Outside wind turbine；Indoor wind turbine.
- 2. air-conditioning system according to claim 1, it is characterised in that the both ends of the solenoid valve respectively with No leakage heating power The both ends of expansion valve are connected, or the both ends air entry and rotor-type compressor with rotor-type compressor respectively of the solenoid valve Exhaust outlet be connected.
- 3. air-conditioning system according to claim 2, it is characterised in that solenoid valve is only pre- before rotor-type compressor startup Timing length is kept open, and when rotor-type compressor is run, and when rotor-type compressor is just shut down remains turned-off shape State.
- 4. air-conditioning system according to claim 1, it is characterised in that the No leakage heating power expansion valve is in compressor operating Shi Caineng is turned on, and is then ended when the compressor is stopped.
- 5. air-conditioning system according to claim 1, it is characterised in that the No leakage heating power expansion valve is in compressor operating When be one-way throttle element, its throttling action from outdoor heat exchanger flows to indoor heat exchanger only in refrigerant；Work as system Throttling action is not played during cryogen reverse flow then, only plays circulation.
- 6. air-conditioning system according to claim 1, it is characterised in that the one-way throttle short tube is one-way throttle element, Its throttling action from indoor heat exchanger flows to outdoor heat exchanger only in refrigerant；When refrigerant reverse flow then not Throttling action is played, only plays circulation.
- 7. air-conditioning system according to claim 2, it is characterised in that further include：Control device, the control device and institute State solenoid valve to be connected, to control opening or closing for the solenoid valve.
- 8. air-conditioning system according to claim 7, it is characterised in that the control device includes：The time relay, it is described The control terminal of the time relay is connected with the power supply of the air-conditioning system, the delay break contact of the time relay and institute State solenoid valve to be connected, the timing closing contact of the time relay is connected with the power cord of the compressor.
- 9. air-conditioning system according to claim 8, it is characterised in that the control device further includes：Intermediate relay, institute The control terminal of intermediate relay is stated with the timing closing contact of the time relay to be connected, the intermediate relay it is normally opened Contact is connected with the power cord of the compressor.
- 10. air-conditioning system according to claim 8, it is characterised in that the delay break contact and the timing closing The duration of the delay of contact is greater than or equal to 1 second, and less than or equal to 60 seconds.
- 11. a kind of air conditioner, it is characterised in that including the air-conditioning system as any one of claims 1 to 10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720943575.6U CN207230987U (en) | 2017-07-31 | 2017-07-31 | A kind of air-conditioning system and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720943575.6U CN207230987U (en) | 2017-07-31 | 2017-07-31 | A kind of air-conditioning system and air conditioner |
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| CN207230987U true CN207230987U (en) | 2018-04-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356006A (en) * | 2017-07-31 | 2017-11-17 | 广东美芝制冷设备有限公司 | A kind of air-conditioning system and air conditioner |
| WO2020220581A1 (en) * | 2019-04-28 | 2020-11-05 | 广东美芝精密制造有限公司 | Air conditioning system |
| CN112810644A (en) * | 2019-11-15 | 2021-05-18 | 中车唐山机车车辆有限公司 | Midway parking mode air conditioner control circuit, control method and system |
| CN114322369A (en) * | 2021-12-17 | 2022-04-12 | 深圳市深蓝电子股份有限公司 | Air source heat pump system, control method, computer device and storage medium |
-
2017
- 2017-07-31 CN CN201720943575.6U patent/CN207230987U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356006A (en) * | 2017-07-31 | 2017-11-17 | 广东美芝制冷设备有限公司 | A kind of air-conditioning system and air conditioner |
| CN107356006B (en) * | 2017-07-31 | 2022-11-25 | 广东美芝制冷设备有限公司 | Air conditioning system and air conditioner |
| WO2020220581A1 (en) * | 2019-04-28 | 2020-11-05 | 广东美芝精密制造有限公司 | Air conditioning system |
| CN112810644A (en) * | 2019-11-15 | 2021-05-18 | 中车唐山机车车辆有限公司 | Midway parking mode air conditioner control circuit, control method and system |
| CN112810644B (en) * | 2019-11-15 | 2022-07-26 | 中车唐山机车车辆有限公司 | Midway parking mode air conditioner control circuit, control method and system |
| CN114322369A (en) * | 2021-12-17 | 2022-04-12 | 深圳市深蓝电子股份有限公司 | Air source heat pump system, control method, computer device and storage medium |
| CN114322369B (en) * | 2021-12-17 | 2024-03-12 | 深圳市深蓝电子股份有限公司 | Air source heat pump system, control method, computer device, and storage medium |
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