CN107560248A - Air-conditioning system and its control device and method - Google Patents
Air-conditioning system and its control device and method Download PDFInfo
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- CN107560248A CN107560248A CN201710731734.0A CN201710731734A CN107560248A CN 107560248 A CN107560248 A CN 107560248A CN 201710731734 A CN201710731734 A CN 201710731734A CN 107560248 A CN107560248 A CN 107560248A
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Abstract
The invention discloses a kind of air-conditioning system and its control device and method, described device includes：First on-off valve and/or the second on-off valve, one end of first on-off valve is connected with the gas returning port of compressor, the other end of first on-off valve is connected with restricting element and condenser respectively, one end of second on-off valve and the middle puff prot of compressor are connected, and the other end of the second on-off valve is connected with restricting element and condenser respectively；Temperature acquisition module, for obtaining the delivery temperature of compressor；Control module, during running with heating mode in air-conditioning system, the first on-off valve and/or the second on-off valve are carried out being turned on and off controlling according to the delivery temperature of compressor, so that the delivery temperature of compressor is in preset temperature range.Thus, the stability of system exhaust temperature can not only be maintained, the needs of when meeting system normal operation, ensures reliability service of the system in wide temperature range, while the service life of compressor can be improved.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of control device of air-conditioning system, one kind have the control
The air-conditioning system of device and a kind of control method of air-conditioning system.
Background technology
At present, air-source screw rod type heat pump machine unit is in low-temperature heating, because environment temperature is relatively low so that pressure of inspiration(Pi) compared with
Low, so that cold medium flux is less, and screw compressor motor is mainly cooled down by air-breathing, and now compressor is easy to out
Now cooling deficiency, delivery temperature rise.In addition, under bad working environments, compressor needs to unload, and the flow of such refrigerant can be more
Few, delivery temperature also may proceed to rise.When the excessive discharge temperature of compressor, the associated components of compressor can be made to accelerate always
Change, compressor lubrication system failure, reduce the service life of compressor.
In correlation technique, when the excessive discharge temperature of compressor, make compressor by increasing the aperture of expansion valve
Absorbing gas belt liquid, compression work is participated in by this partially liq, to reduce the delivery temperature of compressor.However, when suction side has gas
During liquid/gas separator, it is difficult to prove effective using aforesaid way, because liquid refrigerants can be come out by gas-liquid separator separates, stays in gas-liquid point
From in device so that liquid refrigerants cannot be introduced into compressor, so as to be unable to reach the purpose for the delivery temperature for reducing compressor.
The content of the invention
It is contemplated that at least solves one of technical problem in above-mentioned technology to a certain extent.
Therefore, the present invention first purpose be to propose a kind of control device of air-conditioning system, can not only maintain be
The stability for delivery temperature of uniting, the needs of when meeting system normal operation, ensure reliability service of the system in wide temperature range, together
When can improve the service life of compressor.
Second object of the present invention is to propose a kind of air-conditioning system.
Third object of the present invention is to propose a kind of control method of air-conditioning system.
Fourth object of the present invention is to propose a kind of computer-readable recording medium.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of control device of air-conditioning system, described
Air-conditioning system includes compressor, condenser, restricting element and the evaporator being sequentially connected, and the control device includes：First is logical
Disconnected valve and/or the second on-off valve, one end of first on-off valve are connected with the gas returning port of the compressor, first break-make
The other end of valve is connected with the restricting element and the condenser respectively, one end and the compressor of second on-off valve
Middle puff prot be connected, the other end of second on-off valve is connected with the restricting element and the condenser respectively；Temperature
Acquisition module is spent, the temperature acquisition module is used for the delivery temperature for obtaining the compressor；Control module, the control module
It is connected respectively with the temperature acquisition module, first on-off valve and/or second on-off valve, the control module is used for
During the air-conditioning system is run with heating mode, according to the delivery temperature of the compressor to first on-off valve
And/or second on-off valve carries out being turned on and off controlling, so that the delivery temperature of the compressor is in preset temperature model
In enclosing.
The control device of air-conditioning system according to embodiments of the present invention, by compressor gas returning port and restricting element it
Between the first on-off valve is set and/or the second on-off valve is set between the middle puff prot and restricting element of compressor, and in sky
During adjusting system is run with heating mode, the delivery temperature of compressor is obtained by temperature acquisition module, and passes through control
Module carries out being turned on and off controlling according to the delivery temperature of compressor to the first on-off valve and/or the second on-off valve, so that pressure
The delivery temperature of contracting machine is in preset temperature range.The device can not only maintain the stability of system exhaust temperature, meet
Demand during system normal operation, ensure reliability service of the system in wide temperature range, while the use longevity of compressor can be improved
Life.
In addition, the control device of the air-conditioning system proposed according to the above embodiment of the present invention can also have skill additional as follows
Art feature：
According to one embodiment of present invention, when the control device includes first on-off valve, the control mould
Root tuber carries out being turned on and off controlling according to the delivery temperature of the compressor to first on-off valve, including：If the row
Temperature degree is more than or equal to the first preset temperature, and the control module then controls first on-off valve to be in opening；If
The delivery temperature is less than the second preset temperature, and the control module then controls first on-off valve to be closed, its
In, second preset temperature is less than first preset temperature.
According to one embodiment of present invention, when the control device includes second on-off valve, the control mould
Root tuber carries out being turned on and off controlling according to the delivery temperature of the compressor to second on-off valve, including：If the row
Temperature degree is more than or equal to the 3rd preset temperature, and the control module then controls second on-off valve to be in opening；If
The delivery temperature is less than the 4th preset temperature, and the control module then controls second on-off valve to be closed, its
In, the 4th preset temperature is less than the 3rd preset temperature.
According to one embodiment of present invention, when the control module includes first on-off valve and second break-make
During valve, the control module is carried out according to the delivery temperature of the compressor to first on-off valve and second on-off valve
It is turned on and off controlling, including：Judge whether the delivery temperature is more than or equal to the 5th preset temperature；If the delivery temperature
More than or equal to the 5th preset temperature and it is less than the 6th preset temperature, the control module is then controlled at second on-off valve
In opening, and first on-off valve is controlled to be closed；If the delivery temperature is more than or equal to the described 6th
Preset temperature, the control module then control first on-off valve and second on-off valve to be in opening.
Further, when the control module includes first on-off valve and second on-off valve, the control
Module carries out being turned on and off controlling according to the delivery temperature of the compressor to first on-off valve and second on-off valve
System, in addition to：Judge whether the delivery temperature is less than the 7th preset temperature, it is pre- that the 7th preset temperature is less than the described 5th
If temperature；If the delivery temperature is less than the 7th preset temperature and is more than or equal to the 8th preset temperature, the control mould
Block then controls first on-off valve to be closed, and controls second on-off valve to be in opening；It is if described
Delivery temperature is less than the 8th preset temperature, and the control module then controls first on-off valve and second on-off valve
It is in closed mode.
To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of air-conditioning system, and it includes above-mentioned sky
The control device of adjusting system.
The air-conditioning system of the embodiment of the present invention, by the control device of above-mentioned air-conditioning system, system can not only be maintained
The stability of delivery temperature, the needs of when meeting system normal operation, ensure reliability service of the system in wide temperature range, simultaneously
The service life of compressor can be improved.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of control method of air-conditioning system, described
Air-conditioning system is logical including the compressor, condenser, restricting element and the evaporator that are sequentially connected and the first on-off valve and/or second
Disconnected valve, one end of first on-off valve are connected with the gas returning port of the compressor, the other end difference of first on-off valve
It is connected with the restricting element and the condenser, one end of second on-off valve and the middle puff prot phase of the compressor
Even, the other end of second on-off valve is connected with the restricting element and the condenser respectively, and the control method includes
Following steps：During the air-conditioning system is run with heating mode, the delivery temperature of the compressor is obtained；According to institute
The delivery temperature for stating compressor carries out being turned on and off controlling to first on-off valve and/or second on-off valve, so that
The delivery temperature of the compressor is in preset temperature range.
The control method of air-conditioning system according to embodiments of the present invention, in the process that air-conditioning system is run with heating mode
In, the delivery temperature of compressor is obtained, and the first on-off valve and/or the second on-off valve are carried out according to the delivery temperature of compressor
It is turned on and off controlling, so that the delivery temperature of compressor is in preset temperature range.This method can not only maintain system
The stability of delivery temperature, the needs of when meeting system normal operation, ensure reliability service of the system in wide temperature range, simultaneously
The service life of compressor can be improved.
In addition, the control method of the air-conditioning system proposed according to the above embodiment of the present invention can also have what is added as follows
Technical characteristic：
According to one embodiment of present invention, it is described according to institute when the air-conditioning system includes first on-off valve
The delivery temperature for stating compressor carries out being turned on and off controlling to first on-off valve, including：If the delivery temperature is big
In equal to the first preset temperature, then first on-off valve is controlled to be in opening；If the delivery temperature is less than second
Preset temperature, then first on-off valve is controlled to be closed, wherein, it is pre- that second preset temperature is less than described first
If temperature.
According to one embodiment of present invention, it is described according to institute when the air-conditioning system includes second on-off valve
The delivery temperature for stating compressor carries out being turned on and off controlling to second on-off valve, including：If the delivery temperature is big
In equal to the 3rd preset temperature, then second on-off valve is controlled to be in opening；If the delivery temperature is less than the 4th
Preset temperature, then second on-off valve is controlled to be closed, wherein, it is pre- that the 4th preset temperature is less than the described 3rd
If temperature.
According to one embodiment of present invention, when the air-conditioning system includes first on-off valve and second break-make
During valve, the delivery temperature according to the compressor is opened or closed to first on-off valve and second on-off valve
Control is closed, including：Judge whether the delivery temperature is more than or equal to the 5th preset temperature；If the delivery temperature is more than or equal to
5th preset temperature and it is less than the 6th preset temperature, then controls second on-off valve to be in opening, and control institute
The first on-off valve is stated to be closed；If the delivery temperature is more than or equal to the 6th preset temperature, described in control
First on-off valve and second on-off valve are in opening.
Further, when the air-conditioning system includes first on-off valve and second on-off valve, the basis
The delivery temperature of the compressor carries out being turned on and off controlling to first on-off valve and second on-off valve, also wraps
Include：Judge whether the delivery temperature is less than the 7th preset temperature, the 7th preset temperature is less than the 5th preset temperature；
If the delivery temperature is less than the 7th preset temperature and is more than or equal to the 8th preset temperature, first break-make is controlled
Valve is closed, and controls second on-off valve to be in opening；If the delivery temperature is less than the described 8th
Preset temperature, then first on-off valve and second on-off valve is controlled to be in closed mode.
To reach above-mentioned purpose, fourth aspect present invention embodiment proposes a kind of computer-readable recording medium, and it has
Instruction therein is stored in, when executed, the air-conditioning system performs above-mentioned control method.
The computer-readable recording medium of the embodiment of the present invention, by performing the control method of above-mentioned air-conditioning system, not only
The stability of system exhaust temperature is able to maintain that, the needs of when meeting system normal operation, ensures system in wide temperature range
Reliability service, while the service life of compressor can be improved.
Brief description of the drawings
Fig. 1 is the structural representation of the control device of air-conditioning system according to embodiments of the present invention；
Fig. 2 is the structural representation of the control device of air-conditioning system according to an embodiment of the invention；
Fig. 3 is the structural representation of the control device of air-conditioning system in accordance with another embodiment of the present invention；
Fig. 4 is the flow chart of the control method of air-conditioning system according to an embodiment of the invention；And
Fig. 5 is the flow chart of the control method of air-conditioning system according to embodiments of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below in conjunction with the accompanying drawings come describe the embodiment of the present invention proposition air-conditioning system control device, there is the control device
Air-conditioning system, the control method of air-conditioning system and computer-readable recording medium.
Fig. 1 is the structural representation of the control device of air-conditioning system according to embodiments of the present invention.
In an embodiment of the present invention, as shown in figure 1, air-conditioning system may include compressor 01, the condenser being sequentially connected
02nd, restricting element 03 and evaporator 04.Wherein, when air-conditioning system is run with heating mode, compressor 01 is sucked from evaporator
The relatively low gaseous coolant of pressure, is compressed into the higher gaseous coolant of pressure, makes gas by the gaseous coolant of 04 lower pressure out
The volume of state refrigerant reduces, and pressure rise, is then fed into condenser 02, it is cold that the higher liquid of pressure is condensed into condenser 02
Matchmaker, after the throttling of restricting element 03, turn into the relatively low liquid refrigerants of pressure and enter evaporator 04, evaporation of being absorbed heat in evaporator 04
As the relatively low gaseous coolant of pressure, and the gas returning port of compressor 01 is back to, so as to complete heating circulation.
As shown in figure 1, the control device of the air-conditioning system may include：First on-off valve 10 and/or the second on-off valve 20, temperature
Spend acquisition module 30 and control module (not shown).
Wherein, one end of the first on-off valve 10 is connected with the gas returning port of compressor 01, the other end point of the first on-off valve 10
It is not connected with restricting element 03 and condenser 02, one end of the second on-off valve 20 and the middle puff prot of compressor 01 are connected, the
The other end of two on-off valves 20 is connected with restricting element 03 and condenser 02 respectively.Temperature acquisition module 30 is used to obtain compressor
01 delivery temperature.Control module is connected with temperature acquisition module 30, the first on-off valve 10 and/or the second on-off valve 20 respectively,
Control module is used for during air-conditioning system is run with heating mode, according to the delivery temperature of compressor 01 to the first break-make
The on-off valve 20 of valve 10 and/or second carries out being turned on and off controlling, so that the delivery temperature of compressor 01 is in preset temperature model
In enclosing.
Specifically, it is real-time by such as temperature sensor of temperature acquisition module 30 when air-conditioning system is run with heating mode
The delivery temperature T of compressor 01 is obtained, and judges whether the delivery temperature T of compressor 01 is in preset temperature by control module
In the range of, if it is, control compressor 01 is run with current state；If it is not, then T pairs of the delivery temperature according to compressor 01
First on-off valve 10 and/or the second on-off valve 20 carry out being turned on and off controlling, so that the delivery temperature T of compressor 01 is in pre-
If in temperature range.
According to one embodiment of present invention, as shown in Fig. 2 when control device includes the first on-off valve 10, mould is controlled
Root tuber carries out being turned on and off controlling according to the delivery temperature of compressor 01 to the first on-off valve 10, including：If delivery temperature is big
In equal to the first preset temperature, control module then controls the first on-off valve 10 to be in opening；If delivery temperature is less than the
Two preset temperatures, control module then control the first on-off valve 10 to be closed.Wherein, the second preset temperature T2 is less than first
Preset temperature T1, the first preset temperature T1 and the second preset temperature T2 can be demarcated according to actual conditions.
Specifically, when control device only includes the first on-off valve 10, compression is obtained by temperature acquisition module 30 in real time
The delivery temperature T of machine 01, if T ＜ T2, control module then controls the first on-off valve 10 to be closed, and protects compressor 01
Hold current state operating；If T >=T1, illustrate that the delivery temperature of compressor 01 is higher, control module will control the first break-make
Valve 10 is in opening, so that the liquid refrigerants of condenser 02 is flowed through after the first on-off valve 10 with being flowed from evaporator 04 in part
The gaseous coolant mixing gone out, the refrigerant for turning into gas-liquid mixture phase enter compressor 01, participate in the work of compressor 01, to reduce
The delivery temperature T of compressor 01, until during delivery temperature T ＜ T2, control module controls the first on-off valve 10 to be closed.
Therefore, the control device of air-conditioning system according to embodiments of the present invention, by control the first on-off valve unlatching or
Close, the stability of system exhaust temperature can not only be maintained, the needs of when meeting system normal operation, ensure system in wide temperature
The reliability service of scope is spent, while the service life of compressor can be improved.
According to another embodiment of the invention, as shown in figure 3, when control device includes the second on-off valve 20, control
Module carries out being turned on and off controlling according to the delivery temperature of compressor 01 to the second on-off valve 20, including：If delivery temperature
More than or equal to the 3rd preset temperature, control module then controls the second on-off valve 20 to be in opening；If delivery temperature is less than
4th preset temperature, control module then control the second on-off valve 20 to be closed.Wherein, the 4th preset temperature T4 is less than the
Three preset temperature T3, the 3rd preset temperature T3 and the 4th preset temperature T4 can be demarcated according to actual conditions.
Specifically, when control device only includes the second on-off valve 20, compression is obtained by temperature acquisition module 30 in real time
The delivery temperature T of machine 01, if T ＜ T4, control module then controls the second on-off valve 20 to be closed, and protects compressor 01
Hold current state operating；If T >=T3, illustrate that the delivery temperature of compressor 01 is higher, control module will control the second break-make
Valve 20 is in opening, so that the liquid refrigerants that condenser 02 is flowed through in part is directly entered compressor after the second on-off valve 20
01, the work of compressor 01 is participated in, to reduce the delivery temperature T of compressor 01, until during delivery temperature T ＜ T4, control module
The second on-off valve 20 is controlled to be closed.
Therefore, the control device of air-conditioning system according to embodiments of the present invention, by control the second on-off valve unlatching or
Close, the stability of system exhaust temperature can not only be maintained, the needs of when meeting system normal operation, ensure system in wide temperature
The reliability service of scope is spent, while the service life of compressor can be improved.
According to still another embodiment of the invention, as shown in figure 1, leading to when control module includes the first on-off valve 10 and second
During disconnected valve 20, control module first on-off valve 10 and the second on-off valve 20 are opened according to the delivery temperature of compressor 01 or
Closing control, including：Judge whether delivery temperature is more than or equal to the 5th preset temperature；It is pre- that if delivery temperature is more than or equal to the 5th
If temperature and being less than the 6th preset temperature, control module then controls the second on-off valve 20 to be in opening, and controls first logical
Disconnected valve 10 is closed；If delivery temperature is more than or equal to the 6th preset temperature, control module then controls the first on-off valve
10 and second on-off valve 20 be in opening.
Further, when control module includes the first on-off valve 10 and the second on-off valve 20, control module is according to compression
The delivery temperature of machine 01 carries out being turned on and off controlling to the first on-off valve 10 and the second on-off valve 20, in addition to：Judge exhaust
Whether temperature is less than the 7th preset temperature；If delivery temperature is less than the 7th preset temperature and is more than or equal to the 8th preset temperature,
Control module then controls the first on-off valve 10 to be closed, and controls the second on-off valve 20 to be in opening；If row
Temperature degree is less than the 8th preset temperature, and control module then controls the first on-off valve 10 and the second on-off valve 20 to be in closing shape
State.
Wherein, the 5th preset temperature T5 be open the temperature of the liquid refrigerants of the second on-off valve 20, the 7th preset temperature T7 is
The temperature of the liquid refrigerants of the first on-off valve 10 is opened, the 7th preset temperature T7 is less than the 5th preset temperature T5, the 5th preset temperature
T5, the 6th preset temperature T6, the 7th preset temperature T7 and the 8th preset temperature T8 can be demarcated according to actual conditions.It can manage
Solution, when refrigerant species difference, corresponding 5th preset temperature T5, the 6th preset temperature T6, the 7th preset temperature T7 and
8th preset temperature T8 is different, for example, when the species of refrigerant be R134a, the 5th preset temperature T5 can for 90 DEG C, it is the 6th pre-
If temperature T6 can be 95 DEG C, the 7th preset temperature T7 can be 85 DEG C, the 8th preset temperature T8 can be 75 DEG C.
Specifically, when control device includes the first on-off valve 10 and the second on-off valve 20 simultaneously, mould is obtained by temperature
Block 30 obtains the delivery temperature T of compressor 01 in real time, and it is judged.If T5 (such as 90 DEG C)≤T ＜ T6 (such as 95 DEG C),
Then illustrate that the delivery temperature T of compressor 01 is higher, now control module controls the second on-off valve 20 to be in opening, and controls
First on-off valve 10 is closed, so that the liquid refrigerants that condenser 02 is flowed through in part directly enters after the second on-off valve 20
Enter compressor 01, the work of compressor 01 is participated in, to reduce the delivery temperature T of compressor 01.
If T >=T6 (such as 95 DEG C), illustrates that the delivery temperature T of compressor 01 is too high, now control module control first
The on-off valve 20 of on-off valve 10 and second is in opening, so that the liquid refrigerants of condenser 02 is flowed through through the first break-make in part
Compressor 01 is directly entered after valve 10, at the same make part flow through the liquid refrigerants of condenser 02 after the second on-off valve 20 with from steaming
The gaseous coolant mixing that device 04 flows out is sent out, the refrigerant for turning into gas-liquid mixture phase enters compressor 01, participates in compressor 01 together
Work, quickly to reduce the delivery temperature T of compressor 01.
If T8 (such as 75 DEG C)≤T ＜ T7 (such as 85 DEG C), control module then controls the first on-off valve 10 to be closed,
And control the second on-off valve 20 to be in opening, so that the liquid refrigerants of condenser 02 is flowed through after the second on-off valve 20 in part
Compressor 01 is directly entered, participates in the work of compressor 01, to reduce the delivery temperature T of compressor 01, until T ＜ T8 (such as 75
DEG C), control module controls the first on-off valve 10 and the second on-off valve 20 to be in closed mode.
Further, as shown in figure 4, the control method of the air-conditioning system may include following steps：
S101, air-conditioning system are run with heating mode.
S102, the delivery temperature T of compressor is obtained in real time.
S103, judges whether delivery temperature T is more than or equal to the 5th preset temperature T5.If it is, perform step S104；If
It is no, return to step S102.
S104, as T5≤T ＜ T6, open the second on-off valve.
S105, judges whether delivery temperature T is more than or equal to the 6th preset temperature T6.If it is, perform step S106；If
It is no, perform step S109.
S106, open the first on-off valve.
S107, judges whether delivery temperature T is less than the 7th preset temperature T7.If it is, perform step S108；If not,
Return to step S105.
S108, as T8≤T ＜ T7, close the first on-off valve.
S109, judges whether delivery temperature T is less than the 8th preset temperature T8.If it is, perform step S110；If not,
Return to step S105.
S110, close the second on-off valve.
Therefore, the control device of air-conditioning system according to embodiments of the present invention, by controlling the first on-off valve and second to lead to
Being turned on and off for disconnected valve, can not only maintain the stability of system exhaust temperature, the needs of when meeting system normal operation, protect
Card system while can improve the service life of compressor in the reliability service of wide temperature range.
It is understood that in an embodiment of the present invention, the first on-off valve 10 and the second on-off valve 20 can also use
Electric expansion valve is replaced, and the aperture of electric expansion valve can also be now adjusted according to delivery temperature, so that compressor
Delivery temperature is in preset temperature range.
In summary, the control device of air-conditioning system according to embodiments of the present invention, by compressor gas returning port with
First on-off valve is set between restricting element and/or the second break-make is set between the middle puff prot and restricting element of compressor
Valve, and during air-conditioning system is run with heating mode, the delivery temperature of compressor is obtained by temperature acquisition module, and
The first on-off valve and/or the second on-off valve are carried out being turned on and off controlling according to the delivery temperature of compressor by control module
System, so that the delivery temperature of compressor is in preset temperature range.The device can not only maintain the steady of system exhaust temperature
It is qualitative, the needs of when meeting system normal operation, ensure reliability service of the system in wide temperature range, while compressor can be improved
Service life.
In addition, embodiments of the invention also proposed a kind of air-conditioning system, it includes the control dress of above-mentioned air-conditioning system
Put.
The air-conditioning system of the embodiment of the present invention, by the control device of above-mentioned air-conditioning system, system can not only be maintained
The stability of delivery temperature, the needs of when meeting system normal operation, ensure reliability service of the system in wide temperature range, simultaneously
The service life of compressor can be improved.
Fig. 5 is the flow chart of the control method of air-conditioning system according to embodiments of the present invention.
In an embodiment of the present invention, as shown in figure 1, air-conditioning system include be sequentially connected compressor 01, condenser 02,
Restricting element 03 and the on-off valve 10 of evaporator 04 and first and/or the second on-off valve 20, one end of the first on-off valve 10 and pressure
The gas returning port of contracting machine 01 is connected, and the other end of the first on-off valve 10 is connected with restricting element 03 and condenser 02 respectively, and second is logical
One end of disconnected valve 20 and the middle puff prot of compressor 01 are connected, the other end of the second on-off valve 20 respectively with restricting element 03 and
Condenser 02 is connected.
As shown in figure 5, the control method of the air-conditioning system may include following steps：
S1, during air-conditioning system is run with heating mode, obtain the delivery temperature of compressor.
S2, the first on-off valve and/or the second on-off valve are carried out being turned on and off controlling according to the delivery temperature of compressor,
So that the delivery temperature of compressor is in preset temperature range.
According to one embodiment of present invention, when air-conditioning system includes the first on-off valve, according to the exhaust temperature of compressor
Degree carries out being turned on and off controlling to the first on-off valve, including：If delivery temperature is more than or equal to the first preset temperature, control
First on-off valve is in opening；If delivery temperature is less than the second preset temperature, controls the first on-off valve to be in and close
State, wherein, the second preset temperature is less than the first preset temperature.
According to another embodiment of the invention, when air-conditioning system includes the second on-off valve, according to the exhaust of compressor
Temperature carries out being turned on and off controlling to the second on-off valve, including：If delivery temperature is more than or equal to the 3rd preset temperature, control
Make the second on-off valve and be in opening；If delivery temperature is less than the 4th preset temperature, controls the second on-off valve to be in and close
Closed state, wherein, the 4th preset temperature is less than the 3rd preset temperature.
According to still another embodiment of the invention, when air-conditioning system includes the first on-off valve and the second on-off valve, according to
The delivery temperature of compressor carries out being turned on and off controlling to the first on-off valve and the second on-off valve, including：Judge delivery temperature
Whether the 5th preset temperature is more than or equal to；If delivery temperature is more than or equal to the 5th preset temperature and is less than the 6th preset temperature,
Then control the second on-off valve to be in opening, and control the first on-off valve to be closed；If delivery temperature be more than etc.
In the 6th preset temperature, then the first on-off valve and the second on-off valve is controlled to be in opening.
Further, when air-conditioning system includes the first on-off valve and the second on-off valve, according to the delivery temperature of compressor
First on-off valve and the second on-off valve are carried out being turned on and off controlling, in addition to：It is pre- to judge whether delivery temperature is less than the 7th
If temperature, the 7th preset temperature is less than the 5th preset temperature；If delivery temperature is less than the 7th preset temperature and more than or equal to the
Eight preset temperatures, then control the first on-off valve to be closed, and control the second on-off valve to be in opening；If exhaust
Temperature is less than the 8th preset temperature, then controls the first on-off valve and the second on-off valve to be in closed mode.
It should be noted that the details not disclosed in the control method of the air-conditioning system of the embodiment of the present invention, refer to this
Details disclosed in the control device of the air-conditioning system of inventive embodiments, specific I will not elaborate.
The control method of air-conditioning system according to embodiments of the present invention, in the process that air-conditioning system is run with heating mode
In, the delivery temperature of compressor is obtained, and the first on-off valve and/or the second on-off valve are carried out according to the delivery temperature of compressor
It is turned on and off controlling, so that the delivery temperature of compressor is in preset temperature range.This method can not only maintain system
The stability of delivery temperature, the needs of when meeting system normal operation, ensure reliability service of the system in wide temperature range, simultaneously
The service life of compressor can be improved.
In addition, embodiments of the invention also proposed a kind of computer-readable recording medium, it is therein with being stored in
Instruction, when executed, air-conditioning system perform above-mentioned control method.
The computer-readable recording medium of the embodiment of the present invention, by performing the control method of above-mentioned air-conditioning system, not only
The stability of system exhaust temperature is able to maintain that, the needs of when meeting system normal operation, ensures system in wide temperature range
Reliability service, while the service life of compressor can be improved.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In addition, in the description of the invention, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ",
" on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " clockwise ", " inverse time
The orientation or position relationship of the instruction such as pin ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or position relationship,
Be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (12)
1. a kind of control device of air-conditioning system, it is characterised in that the air-conditioning system includes compressor, the condensation being sequentially connected
Device, restricting element and evaporator, the control device include：
First on-off valve and/or the second on-off valve, one end of first on-off valve are connected with the gas returning port of the compressor, institute
The other end for stating the first on-off valve is connected with the restricting element and the condenser respectively, one end of second on-off valve with
The middle puff prot of the compressor is connected, the other end of second on-off valve respectively with the restricting element and the condensation
Device is connected；
Temperature acquisition module, the temperature acquisition module are used for the delivery temperature for obtaining the compressor；
Control module, the control module are led to the temperature acquisition module, first on-off valve and/or described second respectively
Disconnected valve is connected, and the control module is used for during the air-conditioning system is run with heating mode, according to the compressor
Delivery temperature first on-off valve and/or second on-off valve are carried out being turned on and off controlling so that the compression
The delivery temperature of machine is in preset temperature range.
2. the control device of air-conditioning system as claimed in claim 1, it is characterised in that when the control device includes described the
During one on-off valve, the control module is turned on and off according to the delivery temperature of the compressor to first on-off valve
Control, including：
If the delivery temperature is more than or equal to the first preset temperature, the control module then controls first on-off valve to be in
Opening；
If the delivery temperature is less than the second preset temperature, the control module then controls first on-off valve to be in and closed
State, wherein, second preset temperature is less than first preset temperature.
3. the control device of air-conditioning system as claimed in claim 1, it is characterised in that when the control device includes described the
During two on-off valves, the control module is turned on and off according to the delivery temperature of the compressor to second on-off valve
Control, including：
If the delivery temperature is more than or equal to the 3rd preset temperature, the control module then controls second on-off valve to be in
Opening；
If the delivery temperature is less than the 4th preset temperature, the control module then controls second on-off valve to be in and closed
State, wherein, the 4th preset temperature is less than the 3rd preset temperature.
4. the control device of air-conditioning system as claimed in claim 1, it is characterised in that when the control module includes described the
When one on-off valve and second on-off valve, the control module is according to the delivery temperature of the compressor to first break-make
Valve and second on-off valve carry out being turned on and off controlling, including：
Judge whether the delivery temperature is more than or equal to the 5th preset temperature；
If the delivery temperature is more than or equal to the 5th preset temperature and is less than the 6th preset temperature, the control module is then
Control second on-off valve to be in opening, and control first on-off valve to be closed；
If the delivery temperature is more than or equal to the 6th preset temperature, the control module then controls first on-off valve
Opening is in second on-off valve.
5. the control device of air-conditioning system as claimed in claim 4, it is characterised in that when the control module includes described the
When one on-off valve and second on-off valve, the control module is according to the delivery temperature of the compressor to first break-make
Valve and second on-off valve carry out being turned on and off controlling, in addition to：
Judge whether the delivery temperature is less than the 7th preset temperature, the 7th preset temperature is less than the described 5th default temperature
Degree；
If the delivery temperature is less than the 7th preset temperature and is more than or equal to the 8th preset temperature, the control module is then
Control first on-off valve to be closed, and control second on-off valve to be in opening；
If the delivery temperature is less than the 8th preset temperature, the control module then controls first on-off valve and institute
State the second on-off valve and be in closed mode.
A kind of 6. air-conditioning system, it is characterised in that the control dress including the air-conditioning system as any one of claim 1-5
Put.
7. a kind of control method of air-conditioning system, it is characterised in that the air-conditioning system includes compressor, the condensation being sequentially connected
Device, restricting element and evaporator and the first on-off valve and/or the second on-off valve, one end and the pressure of first on-off valve
The gas returning port of contracting machine is connected, and the other end of first on-off valve is connected with the restricting element and the condenser respectively, institute
State one end of the second on-off valve and the middle puff prot of the compressor be connected, the other end of second on-off valve respectively with institute
State restricting element with the condenser to be connected, the control method comprises the following steps：
During the air-conditioning system is run with heating mode, the delivery temperature of the compressor is obtained；
First on-off valve and/or second on-off valve are turned on and off according to the delivery temperature of the compressor
Control, so that the delivery temperature of the compressor is in preset temperature range.
8. the control method of air-conditioning system as claimed in claim 7, it is characterised in that when the air-conditioning system includes described the
During one on-off valve, the delivery temperature according to the compressor carries out being turned on and off controlling to first on-off valve, bag
Include：
If the delivery temperature is more than or equal to the first preset temperature, first on-off valve is controlled to be in opening；
If the delivery temperature is less than the second preset temperature, first on-off valve is controlled to be closed, wherein, institute
State the second preset temperature and be less than first preset temperature.
9. the control method of air-conditioning system as claimed in claim 7, it is characterised in that when the air-conditioning system includes described the
During two on-off valves, the delivery temperature according to the compressor carries out being turned on and off controlling to second on-off valve, bag
Include：
If the delivery temperature is more than or equal to the 3rd preset temperature, second on-off valve is controlled to be in opening；
If the delivery temperature is less than the 4th preset temperature, second on-off valve is controlled to be closed, wherein, institute
State the 4th preset temperature and be less than the 3rd preset temperature.
10. the control method of air-conditioning system as claimed in claim 7, it is characterised in that described in including when the air-conditioning system
When the first on-off valve and second on-off valve, the delivery temperature according to the compressor is to first on-off valve and institute
The second on-off valve is stated to carry out being turned on and off controlling, including：
Judge whether the delivery temperature is more than or equal to the 5th preset temperature；
If the delivery temperature is more than or equal to the 5th preset temperature and is less than the 6th preset temperature, described second is controlled
On-off valve is in opening, and controls first on-off valve to be closed；
If the delivery temperature is more than or equal to the 6th preset temperature, first on-off valve and described second is controlled to lead to
Disconnected valve is in opening.
11. the control method of air-conditioning system as claimed in claim 10, it is characterised in that described in including when the air-conditioning system
When the first on-off valve and second on-off valve, the delivery temperature according to the compressor is to first on-off valve and institute
The second on-off valve is stated to carry out being turned on and off controlling, in addition to：
Judge whether the delivery temperature is less than the 7th preset temperature, the 7th preset temperature is less than the described 5th default temperature
Degree；
If the delivery temperature is less than the 7th preset temperature and is more than or equal to the 8th preset temperature, described first is controlled
On-off valve is closed, and controls second on-off valve to be in opening；
If the delivery temperature is less than the 8th preset temperature, first on-off valve and second on-off valve are controlled
It is in closed mode.
12. a kind of computer-readable recording medium, it is characterised in that have and be stored in instruction therein, when the instruction is held
During row, the air-conditioning system performs the control method as any one of claim 7-11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710731734.0A CN107560248A (en) | 2017-08-23 | 2017-08-23 | Air-conditioning system and its control device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731734.0A CN107560248A (en) | 2017-08-23 | 2017-08-23 | Air-conditioning system and its control device and method |
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| CN107560248A true CN107560248A (en) | 2018-01-09 |
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| CN201710731734.0A Pending CN107560248A (en) | 2017-08-23 | 2017-08-23 | Air-conditioning system and its control device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098552A1 (en) * | 2019-11-21 | 2021-05-27 | 青岛海尔空调器有限总公司 | Heat pump type air-conditioning system and control method therefor |
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| JP2923133B2 (en) * | 1992-07-31 | 1999-07-26 | 三菱重工業株式会社 | Refrigeration equipment |
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