CN106801954B - A kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner - Google Patents
A kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner Download PDFInfo
- Publication number
- CN106801954B CN106801954B CN201710004881.8A CN201710004881A CN106801954B CN 106801954 B CN106801954 B CN 106801954B CN 201710004881 A CN201710004881 A CN 201710004881A CN 106801954 B CN106801954 B CN 106801954B
- Authority
- CN
- China
- Prior art keywords
- value
- pressure
- exhaust gas
- exiting exhaust
- upper limit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The embodiment of the present invention provides a kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner, is related to refrigeration technology field, can obtain respectively different compressors revolving speed or the corresponding exiting exhaust gas upper limit of pressure value of entrance exhaust pressure value when aeration valve opens or closes.The Gas-supplying enthalpy-increasing system includes: first pressure sensor, for detecting the exiting exhaust gas pressure value of Gas-supplying enthalpy-increasing system；Second pressure sensor, for detecting the entrance pressure of inspiration(Pi) force value of Gas-supplying enthalpy-increasing system；Control unit, for detecting the state of aeration valve and obtaining system parameter, and obtain exiting exhaust gas upper limit of pressure value corresponding with the state of aeration valve and system parameter, when exiting exhaust gas pressure value is greater than exiting exhaust gas upper limit of pressure value, compressor rotary speed is adjusted, so that exiting exhaust gas pressure value is less than or equal to exiting exhaust gas upper limit of pressure value；Wherein, the state of aeration valve includes opening state and closed state, and system parameter is entrance pressure of inspiration(Pi) force value or compressor rotary speed.
Description
Technical field
The present invention relates to Refrigeration Engineering technical field more particularly to a kind of Gas-supplying enthalpy-increasing systems and its control method, air-conditioning
Device.
Background technique
At work, if the environment temperature of its work is lower, evaporating pressure is lower (can also to be claimed Gas-supplying enthalpy-increasing system at present
For entrance pressure of inspiration(Pi)), if condensing pressure (alternatively referred to as exiting exhaust gas pressure) is higher simultaneously, it will lead to compressor in this way
Compression ratio (exiting exhaust gas pressure/entrance pressure of inspiration(Pi)) it is excessive.Wherein, the low motor that will lead to compressor of entrance pressure of inspiration(Pi)
Temperature increases.The compression ratio of compressor is excessively high in order to prevent, the compression ratio of meeting selectional restriction Gas-supplying enthalpy-increasing system, to avoid pressing
Contracting machine motor temperature is excessively high or compressor pressure it is excessively high caused by compressor damage.Due to compressor entrance pressure of inspiration(Pi) not
It is easy to change, thus usually generally will limit the exiting exhaust gas pressure of compressor, to reduce the compression ratio of compressor.
In the prior art, either according to compressor rotary speed, exiting exhaust gas pressure is obtained according further to entrance pressure of inspiration(Pi) value
Power limit range, due under tonifying Qi the valve opening state and closed state, the exiting exhaust gas pressure limits of compressor are
It is identical, thus this allows for Gas-supplying enthalpy-increasing system and cannot be guaranteed in aeration valve under opening state and closed state, compressor
The larger revolving speed of output can be corresponded to, and then declines the ability of system；Meanwhile it cannot guarantee that all operating ambient temperatures
Under the conditions of, the exiting exhaust gas pressure limit of compressor is in reasonable range, it is possible to cause compressor operating pressure is exceeded to lead
Cause compressor damage.
Summary of the invention
The embodiment of the present invention provides a kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner, can open in aeration valve
Or when closing, different compressors revolving speed or the corresponding exiting exhaust gas upper limit of pressure value of entrance exhaust pressure value are obtained respectively.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of Gas-supplying enthalpy-increasing system, including compressor, four-way valve, gas-liquid separator, tonifying Qi heat exchange
Device, aeration valve, further includes: the first pressure sensor of the compressor outlet side is set, and the first pressure sensor is used
In the exiting exhaust gas pressure value Th_Pd of detection Gas-supplying enthalpy-increasing system；The second pressure sensing of the suction port of compressor side is set
Device, the second pressure sensor are used to detect the entrance pressure of inspiration(Pi) force value Th_Ps of Gas-supplying enthalpy-increasing system；Control unit is used for
It detects the state of the aeration valve and obtains system parameter, and obtain corresponding with the state of the aeration valve and the system parameter
Exiting exhaust gas upper limit of pressure value, when the exiting exhaust gas pressure value Th_Pd be greater than the exiting exhaust gas upper limit of pressure value
When, compressor rotary speed is adjusted, so that the exiting exhaust gas pressure value Th_Pd is less than or equal to the exiting exhaust gas upper limit of pressure
Value；Wherein, the state of the aeration valve includes opening state and closed state, and the system parameter is entrance pressure of inspiration(Pi) force value
Th_Ps or compressor rotary speed N.
Second aspect provides a kind of air conditioner, which includes above-mentioned Gas-supplying enthalpy-increasing system.
The third aspect also provides a kind of control method of Gas-supplying enthalpy-increasing system, comprising: the outlet of detection Gas-supplying enthalpy-increasing system
Exhaust pressure value Th_Pd and system parameter, the system parameter are entrance pressure of inspiration(Pi) force value Th_Ps or compressor rotary speed N；Detection
The state of aeration valve, the state of the aeration valve include opening state and closed state；Obtain with the state of the aeration valve and
The corresponding exiting exhaust gas upper limit of pressure value of the system parameter, when the exiting exhaust gas pressure value Th_Pd is greater than the outlet
When the upper limit value of pressure at expulsion, compressor rotary speed is adjusted, so that the exiting exhaust gas pressure value Th_Pd goes out less than or equal to described in
The upper limit value of mouth pressure at expulsion.
The embodiment of the present invention provides a kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner, including first pressure sensing
Device, second pressure sensor and control unit, the Gas-supplying enthalpy-increasing system due to the embodiment of the present invention are obtaining exiting exhaust gas pressure
When the upper limit value of power, be obtained according to the state of aeration valve and system parameter it is corresponding with the state of aeration valve and system parameter
Exiting exhaust gas upper limit of pressure value, and when exiting exhaust gas pressure value Th_Pd is greater than exiting exhaust gas upper limit of pressure value, adjustment pressure
Contracting machine revolving speed N so that exiting exhaust gas pressure value Th_Pd is less than or equal to exiting exhaust gas upper limit of pressure value, thus may insure
Compressor under opening state and closed state, can export biggish revolving speed in aeration valve, improve Gas-supplying enthalpy-increasing system
Ability, and can prevent the exiting exhaust gas pressure value Th_Pd of compressor is excessive to cause compressor operating pressure exceeded and make to compress
Machine damage.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram for Gas-supplying enthalpy-increasing system that the prior art provides；
Fig. 2 is a kind of structural schematic diagram of Gas-supplying enthalpy-increasing system provided in an embodiment of the present invention；
Fig. 3 is a kind of control unit provided in an embodiment of the present invention according to aeration valve state and system parameter acquisition outlet row
The schematic diagram of the upper limit value of atmospheric pressure；
Fig. 4 is one kind provided in an embodiment of the present invention under tonifying Qi the valve opening state and closed state, exiting exhaust gas pressure
The relation curve of value and entrance exhaust pressure value；
Fig. 5 is one kind provided in an embodiment of the present invention under tonifying Qi the valve opening state and closed state, exiting exhaust gas pressure
The relation curve of value and compressor rotary speed；
Fig. 6 is a kind of flow diagram of the control method of Gas-supplying enthalpy-increasing system provided in an embodiment of the present invention.
Appended drawing reference:
1- compressor；2- four-way valve；3- indoor heat exchanger；4- throttle valve；5- outdoor heat exchanger；6- gas-liquid separator；7-
Refrigerant storage device；8- tonifying Qi heat exchanger；The first passage of 81- tonifying Qi heat exchanger；Second heat exchange of 82- tonifying Qi heat exchanger is logical
Road；9- aeration valve；10- first pressure sensor；11- second pressure sensor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The Gas-supplying enthalpy-increasing system of the embodiment of the present invention includes refrigerant circulation circuit and tonifying Qi circuit.Gas-supplying enthalpy-increasing system be
Increase tonifying Qi circuit in conventional refrigerant circulation circuit, to improve refrigerating capacity in refrigeration, reduces delivery temperature, mentioned in heating
High heating capacity.
As shown in Figure 1, refrigerant circulation circuit include head and the tail successively connect compressor 1, four-way valve 2, indoor heat exchanger 3,
Throttle valve 4, outdoor heat exchanger 5, four-way valve 2, gas-liquid separator 6.
Increase tonifying Qi circuit in refrigerant circulation circuit, tonifying Qi circuit include be connected to indoor heat exchanger 3 and throttle valve 4 it
Between tonifying Qi heat exchanger 8 and the aeration valve 9 that is connected between tonifying Qi heat exchanger 8 and throttle valve 4.Tonifying Qi heat exchanger 9 and compression
The gas supplementing opening of machine 1 is connected, and is used for 1 tonifying Qi of compressor.
Wherein, it can connect tonifying Qi heat exchanger 8 in tonifying Qi circuit, but be not limited to tonifying Qi heat exchanger 8, such as can be with
It is flash vessel, to this without limiting, as long as in refrigeration or heating tonifying Qi can be carried out to compressor 1.The present invention is said
Bright book attached drawing 1 illustrates the connection type of tonifying Qi heat exchanger by taking tonifying Qi heat exchanger 8 as an example, and the embodiment of the present invention is with tonifying Qi
For heat exchanger 8, the course of work of tonifying Qi heat exchanger 8 is described.
The flow process of refrigerant is described in detail below:
The flow process of refrigerant when refrigeration are as follows:
Main refrigerant circuit flow process are as follows: compressor 1 → four-way valve, 2 → outdoor heat exchanger, 5 → throttle valve, 4 → tonifying Qi heat exchange
First 6 → compressor of heat exchanger channels 81 → indoor heat exchanger, 3 → four-way valve, 2 → gas-liquid separator 2 of device 8；When carrying out tonifying Qi,
Aeration valve 9 is opened, tonifying Qi circuit refrigerant flow process are as follows: the second heat exchange of throttle valve 4 → aeration valve, 9 → tonifying Qi heat exchanger 8 is logical
The gas supplementing opening of 82 → compressor of road 1.When refrigeration tonifying Qi, gaseous coolant is directly entered the gas supplementing opening of compressor 1 by aeration valve 9,
Increasing the capacity of compressor 1, liquid refrigerants becomes low-pressure liquid refrigerant, continues through the first passage 81 of tonifying Qi heat exchanger 8,
The refrigeration of heat exchanger 3 is entered the room, continues to compress into compressor 1 after being evaporated to gaseous state.
The flow process of refrigerant when heating are as follows:
Main refrigerant circuit flowing are as follows: the first heat exchange of compressor 1 → four-way valve, 2 → indoor heat exchanger, 3 → tonifying Qi heat exchanger 8
Channel 81 → throttle valve, 4 → outdoor heat exchanger, 5 → four-way valve, 2 → gas-liquid separator, 6 → compressor 1；When carrying out tonifying Qi, tonifying Qi
Valve 9 is opened, tonifying Qi circuit refrigerant flow process are as follows: first heat exchanger channels 81 → aeration valve, 9 → tonifying Qi of tonifying Qi heat exchanger 8 exchanges heat
The gas supplementing opening of second 82 → compressor of heat exchanger channels 1 of device 8.When heating tonifying Qi, the high pressure gaseous refrigerant of the discharge of compressor 1
Heat exchanger 3 is entered the room by four-way valve 2, is condensed into liquid after exchanging heat with room air, and flow into tonifying Qi heat exchanger 8, is mended
Refrigerant is carried out gas-liquid separation by gas heat exchanger 8, and gaseous coolant flows directly into 1 gas supplementing opening of compressor, increases the exhaust of compressor 1
Amount, liquid refrigerants enters after outdoor heat exchanger 5 is evaporated to gaseous state to be continued to compress into compressor 1.
The embodiment of the present invention provides a kind of Gas-supplying enthalpy-increasing system, as shown in Fig. 2, changing including compressor 1, four-way valve 2, interior
It further include that setting is being compressed outside hot device 3, throttle valve 4, outdoor heat exchanger 5, gas-liquid separator 6, tonifying Qi heat exchanger 8 and aeration valve 9
The first pressure sensor 10 of 1 outlet side of machine, the second pressure sensor 11 and control unit that 1 entrance side of compressor is set
(not illustrated in Fig. 2).
First pressure sensor 10 is used to detect exiting exhaust gas pressure value (i.e. high-pressure value) Th_ of Gas-supplying enthalpy-increasing system
Pd；Second pressure sensor 11 is used to detect entrance pressure of inspiration(Pi) force value (i.e. low pressure value) Th_Ps of Gas-supplying enthalpy-increasing system；Control
Unit processed for detecting the state of aeration valve 9 and obtaining system parameter, and obtains the state and system parameter pair with aeration valve 9
The exiting exhaust gas upper limit of pressure value answered, when exiting exhaust gas pressure value Th_Pd is greater than exiting exhaust gas upper limit of pressure value, adjustment
1 revolving speed of compressor, so that exiting exhaust gas pressure value Th_Pd is less than or equal to exiting exhaust gas upper limit of pressure value；Wherein, aeration valve
9 state includes opening state and closed state, and system parameter is entrance pressure of inspiration(Pi) force value Th_Ps or compressor rotary speed N.
It should be noted that first, refrigerant storage device 7 can also be connected between indoor heat exchanger 3 and throttle valve 4.Its
In, refrigerant storage device 7 can be high-pressure reservoir, and the material of high-pressure reservoir can be stainless steel or copper etc., not do herein
It is specific to limit, as long as being able to bear certain pressure and to refrigerant and machine oil be corrosion-free or effect of dissolving each other.
Second, for throttle valve 4 and aeration valve 9 type without limiting, such as can be electric expansion valve.
Third, for first pressure sensor 10, second pressure sensor 11 specific setting position without limiting, the
One pressure sensor 10 can be set in 1 exit of compressor, the position near 1 exit of compressor also can be set, together
Reason second pressure sensor 11 can be set in 1 inlet of compressor, and the position near 1 inlet of compressor also can be set
It sets.
4th, for control unit type without limiting, the control unit in the embodiment of the present invention for example can be
MCU (Micro Control Unit, micro-control unit).
On this basis, for how to obtain exiting exhaust gas pressure corresponding with the state of aeration valve 9 and system parameter
Upper limit value can prestore after detecting the state of aeration valve 9 and obtaining system parameter according in control unit without limiting
Calculation corresponding with 9 state of aeration valve and system parameter exiting exhaust gas upper limit of pressure value is calculated.
5th, description of the invention attached drawing 3 illustrates control unit and is obtained according to the state and system parameter of aeration valve 9
The schematic diagram of corresponding exiting exhaust gas upper limit of pressure value.Wherein, system parameter is entrance pressure of inspiration(Pi) force value Th_Ps or compressor
Revolving speed N can be obtained according to the state and entrance pressure of inspiration(Pi) force value Th_Ps of aeration valve 9 in 9 opening state of aeration valve or closing
Under state, exiting exhaust gas upper limit of pressure value；It can also be obtained according to the state and compressor rotary speed N of aeration valve 9 in aeration valve
9 open or close under state, exiting exhaust gas upper limit of pressure value.
On this basis, exiting exhaust gas upper limit of pressure value corresponding with the state of aeration valve 9 and system parameter is obtained, when
When exiting exhaust gas pressure value Th_Pd is greater than exiting exhaust gas upper limit of pressure value, compressor rotary speed N is adjusted, so that exiting exhaust gas pressure
Force value Th_Pd is less than or is less than or equal to exiting exhaust gas upper limit of pressure value；When exiting exhaust gas pressure value Th_Pd is less than exiting exhaust gas
When upper limit of pressure value, then without being operated to Gas-supplying enthalpy-increasing system, i.e., without adjusting compressor rotary speed N；Work as exiting exhaust gas
When pressure value Th_Pd is equal to exiting exhaust gas upper limit of pressure value, adjustable 1 revolving speed of compressor, so that exiting exhaust gas pressure value
Th_Pd is less than or is less than or equal to exiting exhaust gas upper limit of pressure value, naturally it is also possible to uncomfortable whole compressor rotary speed N.
The embodiment of the present invention provides a kind of Gas-supplying enthalpy-increasing system, including first pressure sensor 10, second pressure sensor
11 and control unit since the Gas-supplying enthalpy-increasing system of the embodiment of the present invention is when obtaining exiting exhaust gas upper limit of pressure value be
Exiting exhaust gas pressure corresponding with the state of aeration valve 9 and system parameter is obtained according to the state of aeration valve 9 and system parameter
Upper limit value, and exiting exhaust gas pressure value Th_Pd be greater than exiting exhaust gas upper limit of pressure value when, adjust compressor rotary speed N, with
Make to export exhaust pressure value Th_Pd less than or equal to exiting exhaust gas upper limit of pressure value, thus may insure compressor 1 in tonifying Qi
Valve 9 can export biggish revolving speed under opening state and closed state, improve the ability of Gas-supplying enthalpy-increasing system, and can be with
Prevent the exiting exhaust gas pressure value Th_Pd of compressor 1 is excessive from causing 1 operating pressure of compressor exceeded and damaging compressor 1.
Optionally, when system parameter is entrance pressure of inspiration(Pi) force value Th_Ps, control unit is according to entrance pressure of inspiration(Pi) force value
The state of Th_Ps and aeration valve 9 obtains exiting exhaust gas upper limit of pressure value, specific as shown in table 1.
Table 1
Reference table 1 is then obtained when entrance pressure of inspiration(Pi) force value Th_Ps meets: P2≤Th_Ps < P1, and aeration valve 9 is closed
The upper limit value of outlet pressure at expulsion is a × Th_Ps+b, and a, b are constant；And/or when entrance pressure of inspiration(Pi) force value Th_Ps meets:
P2≤Th_Ps < P1, and when the opening of aeration valve 9, then obtaining exiting exhaust gas upper limit of pressure value is c × Th_Ps+d, and c, d are normal
Number；And/or when entrance pressure of inspiration(Pi) force value Th_Ps meets: Th_Ps >=P1, then obtaining exiting exhaust gas upper limit of pressure value is P3.
Wherein, P1 is the maximum permissible value of 1 exiting exhaust gas pressure of compressor and the maximum permissible value of 1 compression ratio of compressor
Ratio, when P2 is that compressor 1 operates normally, the minimum allowable value of entrance pressure of inspiration(Pi), when P3 is that compressor 1 operates normally, out
The maximum permissible value of mouth pressure at expulsion.
Herein, for each component and operation ring in the specific value or value range and Gas-supplying enthalpy-increasing system of P1, P2, P3
The factors such as border are related.The embodiment of the present invention is obtained to its specific value or value range and the specific value or value range
Take mode without limiting.
It is exemplary, if the cycle fluid (refrigerant) of Gas-supplying enthalpy-increasing system is R410A or R32, the value range of P1 are as follows:
0.2~1.4MPa；The value range of P2 are as follows: 0.2~1.4MPa；The value range of P3 are as follows: 0.5~4.7MPa.Further preferably
, P1 0.58MPa, P2 0.17MPa, P3 4.2Mpa.
It should be noted that when being that compressor 1 operates normally due to P2, the minimum allowable value of entrance pressure of inspiration(Pi), thus
As entrance pressure of inspiration(Pi) force value Th_Ps≤P2, compressor 1 has been not normally functioning, therefore for exiting exhaust gas pressure at this time
Upper limit value is without calculating.
Further, since P1 is the maximum allowable of maximum permissible value and 1 compression ratio of compressor of 1 exiting exhaust gas pressure of compressor
The ratio of value, thus as Th_Ps >=P1, in the case where compressor 1 operates normally, no matter exiting exhaust gas pressure value Th_Pd
To be how many, the compression ratio of compressor 1 within the scope of the limitation of 1 compression ratio of compressor, therefore at this time aeration valve 9 in opening state
Or under closed state, exiting exhaust gas upper pressure limit value is identical.
On this basis, the acquisition modes of the value for above-mentioned a, b, c, d or value range are without limiting, the present invention
Embodiment provides a kind of specific acquisition modes.
In the case where the other parameters of Gas-supplying enthalpy-increasing system are constant, under 9 opening state of aeration valve or closed state,
Within the scope of the minimum allowable value and maximum permissible value of entrance pressure of inspiration(Pi), change entrance pressure of inspiration(Pi) force value Th_Ps (entrance pressure of inspiration(Pi)
Force value Th_Ps includes at least P1, P2, P3), and record the corresponding exiting exhaust gas pressure value of each entrance pressure of inspiration(Pi) force value Th_Ps
Th_Pd.Under 9 opening state of aeration valve or closed state, production exports exhaust pressure value Th_Pd and entrance pressure of inspiration(Pi) respectively
The relation curve of value Th_Ps.As shown in figure 4, when curve A is represented under 9 closed state of aeration valve in Fig. 4, exiting exhaust gas pressure value
The relation curve of Th_Pd and entrance pressure of inspiration(Pi) force value Th_Ps, curve B represent 9 opening state of aeration valve, exiting exhaust gas pressure value
The relation curve of Th_Pd and entrance pressure of inspiration(Pi) force value Th_Ps.Within the scope of P1~P2, the linear relationship of available curve A
Formula, the slope of curve A are c, intercept d；Within the scope of P1~P2, the linear relation of available curve B, curve B's is oblique
Rate is a, and intercept b can obtain the value of one group of a, b, c, d in this way.Change any of other parameters, repeats above-mentioned
Process obtains the value of another group of a, b, c, d, and the value by obtaining multiple groups a, b, c, d can obtain the value of a, b, c, d
Range.It should be noted that the value of a, b, c, d or value range in order to ensure obtaining are accurate as much as possible, thus can be with
It exiting exhaust gas pressure value Th_Pd corresponding to entrance pressure of inspiration(Pi) force value Th_Ps should detect as much as possible.
Exemplary, if the cycle fluid (refrigerant) of Gas-supplying enthalpy-increasing system is R410A or R32, the value range of a is at this time
The value range of 0.04≤a≤0.12, b are 1.2≤b≤2.0, and the value range of c is 0.05≤c≤0.15, the value range of d
For 1.5≤d≤2.0.
The embodiment of the present invention can be accurately obtained aeration valve 9 in opening state according to entrance pressure of inspiration(Pi) force value Th_Ps
Or under closed state, the corresponding exiting exhaust gas upper limit of pressure value of different entrance pressure of inspiration(Pi) force value Th_Ps.
Optionally, when system parameter is compressor rotary speed N, control unit is according to the shape of compressor rotary speed N and aeration valve 9
State obtains exiting exhaust gas upper limit of pressure value, specific as shown in table 2.
Table 2
Reference table 2 then obtains exiting exhaust gas pressure when compressor rotary speed N meets: N1≤N < N2, and aeration valve 9 is closed
The upper limit value of power is e × N+f, and e, f are constant；And/or when compressor rotary speed N meets: N1≤N < N2, and aeration valve 9 is opened
When, then obtaining exiting exhaust gas upper limit of pressure value is g × N+h, and g, h are constant；And/or when compressor rotary speed N meets: N2≤N
When < N3, and when the closing of aeration valve 9, then obtaining exiting exhaust gas upper limit of pressure value is i × N+j, and i, j are constant；And/or when
Compressor rotary speed N meets: when N2≤N < N3, and when the opening of aeration valve 9, then obtaining exiting exhaust gas upper limit of pressure value is q, and q is
Constant；And/or when compressor rotary speed N meets: when N3≤N≤N4, then obtaining exiting exhaust gas upper limit of pressure value is k × N+m,
K, m is constant.
Wherein, N1 is the minimum allowable value of compressor rotary speed, and N2 is (q-h)/g, and N3 is (q-m)/k, and N4 turns for compressor
The maximum permissible value of speed.
It should be noted that N4 is the maximum allowable of compressor rotary speed due to the minimum allowable value that N1 is compressor rotary speed
Value, thus as compressor rotary speed N < N1 or compressor rotary speed N > N4, compressor 1 has been not normally functioning, therefore for this
When exiting exhaust gas upper limit of pressure value without analysis.
Herein, for each component and fortune in the specific value or value range and Gas-supplying enthalpy-increasing system of N1, N2, N3, N4
The factors such as row environment are related.The embodiment of the present invention is to its specific value or value range and the specific value or value range
Acquisition modes without limit.For most of Gas-supplying enthalpy-increasing system such as air-conditioning systems in the prior art, preferably
, N1 15rps, N2 30rps, N3 90rps, N4 120rps.
On this basis, the acquisition modes of the value for above-mentioned e, f, g, h, i, j, q, k, m or value range without
It limits, the embodiment of the present invention provides a kind of specific acquisition modes.
In the case where the other parameters of Gas-supplying enthalpy-increasing system are constant, under 9 opening state of aeration valve or closed state,
Within the scope of compressor rotary speed N maximum permissible value and minimum allowable value, changing compressor rotary speed N, (compressor rotary speed N is included at least
N1, N4), and detect the corresponding exiting exhaust gas pressure value Th_Pd of each compressor rotary speed N.In 9 opening state of aeration valve or closing
Under state, production exports the relation curve of exhaust pressure value Th_Pd and compressor rotary speed N respectively.As shown in figure 5, curve in Fig. 5
C is represented under tonifying Qi the valve opening state, the relation curve of exiting exhaust gas pressure value Th_Pd and compressor rotary speed N, and curve D, which is represented, to be mended
Under air valve closed state, the relation curve of exiting exhaust gas pressure value Th_Pd and compressor rotary speed N.For curve C, in N1~N2
In range, C1 sections of linear relation in available curve, C1 sections of slope is g, intercept h at this time, in N2~N3 range
It is interior, C2 sections of linear relation in available curve, since C2 sections are the lines parallel with horizontal axis in Fig. 5, C2 sections with the longitudinal axis
Intersection point is q, within the scope of N3~N4, obtains C3 sections in curve of linear relation, and C3 sections of slope is k at this time, and intercept is
m.For curve D, within the scope of N1~N2, D1 sections of linear relation in available curve, the slope at the end D1 is e at this time,
Intercept is f, and within the scope of N2~N3, D2 sections of linear relation in available curve, D2 sections of slope is i, intercept at this time
D3 sections in curve of linear relation is obtained within the scope of N3~N4 for j, D3 sections of slope is k, intercept m at this time.Due to
C3 sections are overlapped with D3 sections, thus can obtain k, m according to C3 sections, can also obtain k, m according to D3 sections.It, can based on above-mentioned
The value of one group of e, f, g, h, i, j, q, k, m are obtained, changes any of other parameters, repeats the above process, obtain another
Group e, f, g, h, i, j, q, k, m value, by obtain multiple groups e, f, g, h, i, j, q, k, m value can obtain e, f, g,
H, the value range of i, j, q, k, m.It should be noted that in order to ensure the obtained value of e, f, g, h, i, j, q, k, m or taking
It is accurate as much as possible to be worth range, thus can should be as much as possible to the corresponding exiting exhaust gas pressure value of different compressors revolving speed N
Th_Pd is detected.
Exemplary, if the cycle fluid (refrigerant) of Gas-supplying enthalpy-increasing system is R410A or R32, the value range of e is at this time
The value range of 0.04≤e≤0.12, f are 1.2≤f≤2.0, and the value range of g is 0.05≤g≤0.15, the value range of h
For 1.5≤h≤2, the value range of i is 0.05≤i≤0.12, and the value range of j is 3.5≤j≤4.2, the value range of k
It is 0.04≤m≤0.12 for -0.05≤k≤- 0.03, m value range, the value range of q is 4.15≤q≤4.7.
The embodiment of the present invention can be accurately obtained in 9 opening state of aeration valve according to compressor rotary speed N or close shape
Under state, the corresponding exiting exhaust gas upper limit of pressure value of different compressors revolving speed N.
In the above-described embodiments, Gas-supplying enthalpy-increasing system can be applied to refrigerator, also can be applied to air-conditioning, can also apply
In the refrigeration such as refrigerator and/or heating equipment, it is not specifically limited herein.
Based on above-mentioned Gas-supplying enthalpy-increasing system, the embodiment of the present invention provides a kind of air conditioner, which includes above-mentioned
Gas-supplying enthalpy-increasing system.
The embodiment of the present invention provides a kind of air conditioner, including first pressure sensor 10, second pressure sensor 11 and
Control unit, since the Gas-supplying enthalpy-increasing system in air conditioner of the embodiment of the present invention is when obtaining exiting exhaust gas upper limit of pressure value,
It is that exiting exhaust gas pressure corresponding with the state of aeration valve 9 and system parameter is obtained according to the state of aeration valve 9 and system parameter
The upper limit value of power, and when exiting exhaust gas pressure value Th_Pd is greater than exiting exhaust gas upper limit of pressure value, compressor rotary speed is adjusted,
So that exiting exhaust gas pressure value Th_Pd is less than or equal to exiting exhaust gas upper limit of pressure value, thus it may insure that compressor 1 is being mended
Air valve 9 can export biggish revolving speed under opening state and closed state, improve the ability of Gas-supplying enthalpy-increasing system, and can
With prevent the exiting exhaust gas pressure value Th_Pd of compressor 1 it is excessive cause 1 operating pressure of compressor exceeded and make compressor 1 damage.
The embodiment of the present invention also provides a kind of control method of Gas-supplying enthalpy-increasing system, as shown in Figure 6, comprising:
S100, the exiting exhaust gas pressure value Th_Pd and system parameter for detecting Gas-supplying enthalpy-increasing system, system parameter are entrance suction
Air pressure force value Th_Ps or compressor rotary speed N.
Wherein it is possible to detect using first pressure sensor to exiting exhaust gas pressure value Th_Pd, second pressure is utilized
Sensor detects entrance pressure of inspiration(Pi) force value Th_Ps.During adjusting compressor rotary speed N, in Gas-supplying enthalpy-increasing system
It can respective stored compressor rotary speed N adjusted.
S101, the state for detecting aeration valve 9, the state of aeration valve 9 includes opening state and closed state.
Herein, it can use the state of MCU detection aeration valve 9.
S102, acquisition exiting exhaust gas upper limit of pressure value corresponding with the state of aeration valve 9 and system parameter, when outlet is arranged
When air pressure force value Th_Pd is greater than exiting exhaust gas upper limit of pressure value, compressor rotary speed N is adjusted, so that exiting exhaust gas pressure value Th_
Pd is less than or equal to exiting exhaust gas upper limit of pressure value.
Herein, it can be obtained according to the state and entrance pressure of inspiration(Pi) force value Th_Ps of aeration valve 9 in 9 opening state of aeration valve
Or under closing, exiting exhaust gas upper limit of pressure value；It can also be obtained according to the state and compressor rotary speed N of aeration valve 9 in tonifying Qi
Under 9 opening state of valve or closed state, exiting exhaust gas upper limit of pressure value.
Wherein, exiting exhaust gas upper limit of pressure value corresponding with the state of aeration valve 9 and system parameter is obtained, when outlet is arranged
When air pressure force value Th_Pd is greater than exiting exhaust gas upper limit of pressure value, 1 revolving speed of compressor is adjusted, so that exiting exhaust gas pressure value Th_
Pd is less than or is less than or equal to exiting exhaust gas upper limit of pressure value；When exiting exhaust gas pressure value Th_Pd is less than exiting exhaust gas pressure
When upper limit value, then without being operated to Gas-supplying enthalpy-increasing system, i.e., without adjusting 1 revolving speed of compressor；When exiting exhaust gas pressure value
When Th_Pd is equal to exiting exhaust gas upper limit of pressure value, adjustable 1 revolving speed of compressor, so that exiting exhaust gas pressure value Th_Pd is small
It, can also be with uncomfortable whole 1 revolving speed of compressor in or less than or equal to exiting exhaust gas upper limit of pressure value.
The embodiment of the present invention provides a kind of control method of Gas-supplying enthalpy-increasing system, since the embodiment of the present invention is according to aeration valve
9 state and system parameter obtain exiting exhaust gas upper limit of pressure value corresponding with the state of aeration valve 9 and system parameter, and
When exiting exhaust gas pressure value Th_Pd is greater than exiting exhaust gas upper limit of pressure value, compressor rotary speed is adjusted, so that exiting exhaust gas pressure
Force value Th_Pd is less than or equal to exiting exhaust gas upper limit of pressure value, thus may insure compressor 1 in aeration valve 9 in open shape
Under state and closed state, biggish revolving speed can be exported, improves the ability of Gas-supplying enthalpy-increasing system, and compressor 1 can be prevented
Exiting exhaust gas pressure value Th_Pd it is excessive cause 1 operating pressure of compressor exceeded and make compressor 1 damage.
In order to obtain exiting exhaust gas upper limit of pressure value corresponding with the state of aeration valve 9 and system parameter, the present invention is real
Applying example may include following two concrete implementation mode:
Mode one
When system parameter is entrance pressure of inspiration(Pi) force value Th_Ps, when entrance pressure of inspiration(Pi) force value Th_Ps meets: P2≤Th_Ps
< P1, and when the closing of aeration valve 9, then obtaining exiting exhaust gas upper limit of pressure value is a × Th_Ps+b, and a, b are constant；And/or
When entrance pressure of inspiration(Pi) force value Th_Ps meets: P2≤Th_Ps < P1, and aeration valve 9 is opened, then 9 exiting exhaust gas pressure are obtained
Upper limit value is c × Th_Ps+d, and c, d are constant；Wherein, P1 is the maximum permissible value and compressor of 1 exiting exhaust gas pressure of compressor
The ratio of the maximum permissible value of compression ratio, when P2 is that compressor operates normally, the minimum allowable value of entrance pressure of inspiration(Pi).
Wherein, for each component and running environment in the specific value or value range and Gas-supplying enthalpy-increasing system of P1, P2
Etc. factors it is related.Acquisition of the embodiment of the present invention to its specific value or value range and the specific value or value range
Mode is without limiting.
Herein, the acquisition modes of the value for a, b, c, d or value range are without limiting.For example, can with it is above-mentioned
The mode for obtaining a, b, c, d is identical, and details are not described herein again.
Exemplary, if the cycle fluid (refrigerant) of Gas-supplying enthalpy-increasing system is R410A or R32, the value range of a is at this time
The value range of 0.04≤a≤0.12, b are 1.2≤b≤2.0, and the value range of c is 0.05≤c≤0.15, the value range of d
For 1.5≤d≤2.0.
Further, exiting exhaust gas upper limit of pressure value corresponding with the state of aeration valve 9 and system parameter is obtained, is also wrapped
Include: when entrance pressure of inspiration(Pi) force value Th_Ps meets: Th_Ps >=P1, then obtaining exiting exhaust gas upper limit of pressure value is P3；Wherein, P3
When being operated normally for compressor, the maximum permissible value of exiting exhaust gas pressure.
Wherein, in the specific value or value range of P3 and Gas-supplying enthalpy-increasing system each component and running environment etc. because
It is known as pass.Acquisition modes of the embodiment of the present invention to its specific value or value range and the specific value or value range
Without limiting.
The embodiment of the present invention can be accurately obtained aeration valve 9 in opening state according to entrance pressure of inspiration(Pi) force value Th_Ps
Or under closed state, the corresponding exiting exhaust gas upper limit of pressure value of different entrance pressure of inspiration(Pi) force value Th_Ps.
Preferably, if the cycle fluid of Gas-supplying enthalpy-increasing system is R410A or R32, the value range of P1 are as follows: 0.2~
1.4MPa；The value range of P2 are as follows: 0.2~1.4MPa；The value range of P3 are as follows: 0.5~4.7MPa.
Wherein, for existing most of air-conditioning systems, it is further preferred that P1 is 0.58MPa, P2 is
0.17MPa, P3 4.2Mpa.
Mode two
When system parameter is compressor rotary speed N, when compressor rotary speed N satisfaction: N1≤N < N2, and aeration valve 9 is closed
When, then obtaining exiting exhaust gas upper limit of pressure value is e × N+f, and e, f are constant；And/or when compressor rotary speed N meets: N1≤N
< N2, and when the opening of aeration valve 9, then obtaining exiting exhaust gas upper limit of pressure value is g × N+h, and g, h are constant；And/or work as pressure
Contracting machine revolving speed N meets: when N2≤N < N3, and when the closing of aeration valve 9, then obtaining 9 exiting exhaust gas upper limit of pressure values is i × N+
J, i, j are constant；And/or when compressor rotary speed N meets: when N2≤N < N3, and when the opening of aeration valve 9, then obtaining outlet row
The upper limit value of atmospheric pressure is q, and q is constant；Wherein, N1 is the minimum allowable value of compressor rotary speed, and N2 is (q-h)/g, and N3 is (q-
M)/k, k, m are constant.
Wherein, N1 is the minimum allowable value of compressor rotary speed, therefore as N < N1, compressor not can be carried out normal work,
Therefore for exiting exhaust gas upper limit of pressure value at this time without analysis.
Further, exiting exhaust gas upper limit of pressure value corresponding with the state of aeration valve 9 and system parameter is obtained, is also wrapped
Include: when compressor rotary speed N meets: when N3≤N≤N4, then obtaining exiting exhaust gas upper limit of pressure value is k × N+m；Wherein, N4 is
The maximum permissible value of compressor rotary speed.
Herein, the acquisition modes of the value for e, f, g, h, i, j, q, k, m or value range are without limiting.For example,
Can be identical with the mode of above-mentioned acquisition e, f, g, h, i, j, q, k, m, details are not described herein again.
Exemplary, if the cycle fluid (refrigerant) of Gas-supplying enthalpy-increasing system is R410A or R32, the value range of e is at this time
The value range of 0.04≤e≤0.12, f are 1.2≤f≤2.0, and the value range of g is 0.05≤g≤0.15, the value range of h
For 1.5≤h≤2, the value range of i is 0.05≤i≤0.12, and the value range of j is 3.5≤j≤4.2, the value range of k
It is 0.04≤m≤0.12 for -0.05≤k≤- 0.03, m value range, the value range of q is 4.15≤q≤4.7.
In addition, for each component and fortune in the specific value or value range and Gas-supplying enthalpy-increasing system of N1, N2, N3, N4
The factors such as row environment are related.The embodiment of the present invention is to its specific value or value range and the specific value or value range
Acquisition modes without limit.For most of air-conditioning systems in the prior art, it is preferred that N1 15rps, N2 are
30rps, N3 90rps, N4 120rps.
Wherein, due to the maximum permissible value that N4 is compressor rotary speed, as N > N4, compressor 1 not can be carried out at this time
It works normally, therefore for exiting exhaust gas upper limit of pressure value at this time without analysis.
The embodiment of the present invention can be accurately obtained in 9 opening state of aeration valve according to compressor rotary speed N or close shape
Under state, the corresponding exiting exhaust gas upper limit of pressure value of different compressors revolving speed N.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of Gas-supplying enthalpy-increasing system, including compressor, four-way valve, gas-liquid separator, tonifying Qi heat exchanger, aeration valve, feature
It is, further includes:
The first pressure sensor of the compressor outlet side is set, and the first pressure sensor is for detecting Gas-supplying enthalpy-increasing
The exiting exhaust gas pressure value Th_Pd of system；
The second pressure sensor of the suction port of compressor side is set, and the second pressure sensor is for detecting Gas-supplying enthalpy-increasing
The entrance pressure of inspiration(Pi) force value Th_Ps of system；
Control unit for detecting the state of the aeration valve and obtaining system parameter, and obtains the state with the aeration valve
Exiting exhaust gas upper limit of pressure value corresponding with the system parameter, when the exiting exhaust gas pressure value Th_Pd goes out greater than described in
When the upper limit value of mouth pressure at expulsion, compressor rotary speed is adjusted, so that the exiting exhaust gas pressure value Th_Pd is less than or equal to described
Exiting exhaust gas upper limit of pressure value；Wherein, the state of the aeration valve includes opening state and closed state, the system parameter
For entrance pressure of inspiration(Pi) force value Th_Ps or compressor rotary speed N；
When the system parameter is entrance pressure of inspiration(Pi) force value Th_Ps, described control unit is specifically used for:
When the entrance pressure of inspiration(Pi) force value Th_Ps meets: P2≤Th_Ps < P1, and the aeration valve is closed, then described in acquisition
Exiting exhaust gas upper limit of pressure value is a × Th_Ps+b, and a, b are constant；
And/or
When the entrance pressure of inspiration(Pi) force value Th_Ps meets: P2≤Th_Ps < P1, and the aeration valve is opened, then described in acquisition
Exiting exhaust gas upper limit of pressure value is c × Th_Ps+d, and c, d are constant；
And/or
When the entrance pressure of inspiration(Pi) force value Th_Ps meets: Th_Ps >=P1, then obtaining exiting exhaust gas upper limit of pressure value is P3；
Wherein, P1 is the ratio of the maximum permissible value of compressor outlet pressure at expulsion and the maximum permissible value of compressor pressure ratios,
When P2 is that compressor operates normally, the minimum allowable value of entrance pressure of inspiration(Pi), when P3 is that compressor operates normally, exiting exhaust gas pressure
The maximum permissible value of power.
2. Gas-supplying enthalpy-increasing system according to claim 1, which is characterized in that the system parameter be compressor rotary speed N
When, described control unit is specifically used for
When the compressor rotary speed N meets: N1≤N < N2, and the aeration valve is closed, then the exiting exhaust gas pressure is obtained
Upper limit value be e × N+f, e, f be constant；And/or when the compressor rotary speed N meets: N1≤N < N2, and the aeration valve
When opening, then obtaining the exiting exhaust gas upper limit of pressure value is g × N+h, and g, h are constant；
And/or
When the compressor rotary speed N meets: when N2≤N < N3, and when aeration valve closing, then obtaining the exiting exhaust gas pressure
The upper limit value of power is i × N+j, and i, j are constant；And/or when the compressor rotary speed N meets: when N2≤N < N3, and the benefit
When air valve is opened, then obtaining the exiting exhaust gas upper limit of pressure value is q, and q is constant；
And/or
When the compressor rotary speed N meets: when N3≤N≤N4, then obtaining the exiting exhaust gas upper limit of pressure value is k × N+m,
K, m is constant；
Wherein, N1 is the minimum allowable value of compressor rotary speed, and N2 is (q-h)/g, and N3 is (q-m)/k, and N4 is compressor rotary speed
Maximum permissible value.
3. a kind of air conditioner, which is characterized in that including the described in any item Gas-supplying enthalpy-increasing systems of claim 1-2.
4. a kind of control method of Gas-supplying enthalpy-increasing system characterized by comprising
The exiting exhaust gas pressure value Th_Pd and system parameter of Gas-supplying enthalpy-increasing system are detected, the system parameter is entrance pressure of inspiration(Pi)
Force value Th_Ps or compressor rotary speed N；
The state of aeration valve is detected, the state of the aeration valve includes opening state and closed state；
Exiting exhaust gas upper limit of pressure value corresponding with the state of the aeration valve and the system parameter is obtained, when the outlet
When exhaust pressure value Th_Pd is greater than the exiting exhaust gas upper limit of pressure value, compressor rotary speed is adjusted, so that the exiting exhaust gas
Pressure value Th_Pd is less than or equal to the exiting exhaust gas upper limit of pressure value；
When the system parameter is entrance pressure of inspiration(Pi) force value Th_Ps, state and the system of the acquisition with the aeration valve
The corresponding exiting exhaust gas upper limit of pressure value of parameter of uniting, specifically includes:
When the entrance pressure of inspiration(Pi) force value Th_Ps meets: P2≤Th_Ps < P1, and the aeration valve is closed, then described in acquisition
Exiting exhaust gas upper limit of pressure value is a × Th_Ps+b, and a, b are constant；
And/or
When the entrance pressure of inspiration(Pi) force value Th_Ps meets: P2≤Th_Ps < P1, and the aeration valve is opened, then described in acquisition
Exiting exhaust gas upper limit of pressure value is c × Th_Ps+d, and c, d are constant；
Wherein, P1 is the ratio of the maximum permissible value of compressor outlet pressure at expulsion and the maximum permissible value of compressor pressure ratios,
When P2 is that compressor operates normally, the minimum allowable value of entrance pressure of inspiration(Pi).
5. control method according to claim 4, which is characterized in that the acquisition and the state of the aeration valve and described
The corresponding exiting exhaust gas upper limit of pressure value of system parameter, further includes:
When the entrance pressure of inspiration(Pi) force value Th_Ps meets: Th_Ps >=P1, then obtaining exiting exhaust gas upper limit of pressure value is P3；
Wherein, when P3 is that compressor operates normally, the maximum permissible value of exiting exhaust gas pressure.
6. control method according to claim 5, which is characterized in that if the cycle fluid of the Gas-supplying enthalpy-increasing system is
The value range of R410A or R32, P1 are as follows: 0.2-1.4MPa；The value range of P2 are as follows: 0.2-1.4MPa；The value range of P3
Are as follows: 0.5-4.7MPa.
7. control method according to claim 4, which is characterized in that when the system parameter is compressor rotary speed N, institute
It states and obtains exiting exhaust gas upper limit of pressure value corresponding with the state of the aeration valve and the system parameter, specifically include:
When the compressor rotary speed N meets: N1≤N < N2, and the aeration valve is closed, then the exiting exhaust gas pressure is obtained
Upper limit value be e × N+f, e, f be constant；And/or when the compressor rotary speed N meets: N1≤N < N2, and the aeration valve
When opening, then obtaining the exiting exhaust gas upper limit of pressure value is g × N+h, and g, h are constant；
And/or
When the compressor rotary speed N meets: when N2≤N < N3, and when aeration valve closing, then obtaining the exiting exhaust gas pressure
The upper limit value of power is i × N+j, and i, j are constant；And/or when the compressor rotary speed N meets: when N2≤N < N3, and the benefit
When air valve is opened, then obtaining the exiting exhaust gas upper limit of pressure value is q, and q is constant；
Wherein, N1 is the minimum allowable value of compressor rotary speed, and N2 is (q-h)/g, and N3 is (q-m)/k, and k, m are constant.
8. control method according to claim 7, which is characterized in that the acquisition and the state of the aeration valve and described
The corresponding exiting exhaust gas upper limit of pressure value of system parameter, further includes:
When the compressor rotary speed N meets: when N3≤N≤N4, then obtaining the exiting exhaust gas upper limit of pressure value is k × N+m；
Wherein, N4 is the maximum permissible value of compressor rotary speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004881.8A CN106801954B (en) | 2017-01-04 | 2017-01-04 | A kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004881.8A CN106801954B (en) | 2017-01-04 | 2017-01-04 | A kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106801954A CN106801954A (en) | 2017-06-06 |
| CN106801954B true CN106801954B (en) | 2019-07-23 |
Family
ID=58985315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710004881.8A Active CN106801954B (en) | 2017-01-04 | 2017-01-04 | A kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106801954B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107883625B (en) * | 2017-11-18 | 2020-08-25 | 山东阿尔普尔节能装备有限公司 | Low-temperature heat pump air-supplementing enthalpy-increasing compression ratio control method |
| CN109099610B (en) * | 2018-09-07 | 2021-10-08 | 青岛海信日立空调系统有限公司 | Air-supplementing enthalpy-increasing refrigerating system, air conditioner and air conditioner control method |
| CN109442637A (en) * | 2018-11-19 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of Gas-supplying enthalpy-increasing system and its control method |
| FR3091562B1 (en) * | 2019-01-09 | 2021-07-02 | Valeo Systemes Thermiques | Control method of an electric air conditioning compressor and air conditioning system implementing such a control method |
| CN112113373B (en) * | 2019-06-21 | 2022-05-13 | 浙江盾安机电科技有限公司 | Control method of air conditioning system |
| CN114870238A (en) * | 2022-04-25 | 2022-08-09 | 浙江宜格企业管理集团有限公司 | Pressure control method and system for leading-in beauty instrument |
| CN115202196B (en) * | 2022-09-13 | 2022-12-02 | 北京世纪隆博科技有限责任公司 | Pressure split-range control method and system, storage medium and processor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512153A (en) * | 2013-07-16 | 2014-01-15 | 广东美芝制冷设备有限公司 | Air-conditioning system with enthalpy increased through vapor injection and control method thereof |
| CN104421139A (en) * | 2013-08-22 | 2015-03-18 | 珠海格力电器股份有限公司 | Operation control method and device for compressor |
| CN105588358A (en) * | 2014-11-13 | 2016-05-18 | 海信（山东）空调有限公司 | Air supplementing and enthalpy increasing air conditioner system and air conditioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008273220A (en) * | 2007-04-06 | 2008-11-13 | Sanden Corp | Cooling device for vehicle |
| JP2008309364A (en) * | 2007-06-12 | 2008-12-25 | Toyo Eng Works Ltd | Heat pump type air conditioning device |
-
2017
- 2017-01-04 CN CN201710004881.8A patent/CN106801954B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512153A (en) * | 2013-07-16 | 2014-01-15 | 广东美芝制冷设备有限公司 | Air-conditioning system with enthalpy increased through vapor injection and control method thereof |
| CN104421139A (en) * | 2013-08-22 | 2015-03-18 | 珠海格力电器股份有限公司 | Operation control method and device for compressor |
| CN105588358A (en) * | 2014-11-13 | 2016-05-18 | 海信（山东）空调有限公司 | Air supplementing and enthalpy increasing air conditioner system and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106801954A (en) | 2017-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106801954B (en) | A kind of Gas-supplying enthalpy-increasing system and its control method, air conditioner | |
| CN114838532B (en) | Heat exchanger and air conditioner | |
| CN108131858B (en) | A kind of heat pump air conditioning system and its control method | |
| EP3101369B1 (en) | Heat recovery variable-frequency multi-split heat pump system and control method thereof | |
| CN106500391B (en) | A kind of heat exchange cycle system and its control method and air-conditioning | |
| CN106382701A (en) | Multiple-on-line air conditioner as well as outdoor unit thereof, control method thereof and control device thereof | |
| US10088206B2 (en) | Air-conditioning apparatus | |
| CN104048366B (en) | Air conditioner, outdoor unit of air conditioner, heating air supplementing method and refrigeration air supplementing method | |
| EP2009369B1 (en) | A heat pump air condition system, and the steam jet system and the control method thereof | |
| CN109373533A (en) | Adjusting method, regulating device, multi-line system and computer readable storage medium | |
| CN105627612B (en) | The refrigeration control method of outdoor unit refrigerant pipe-line system, air conditioner and air conditioner | |
| US20180259218A1 (en) | Air conditioning system | |
| CN109373545A (en) | Adjusting method, regulating device, multi-line system and computer readable storage medium | |
| CN106595105A (en) | Air conditioner | |
| CN104896793A (en) | Air conditioning hot water heater system | |
| CN104764115B (en) | Multiple on-line system | |
| CN105180527A (en) | Air-conditioning and water-heating system and control method | |
| CN106642790A (en) | Air-conditioning system and control method | |
| CN104949375B (en) | Air-conditioning system and its refrigerant adjustment control method | |
| CN104879950A (en) | Air conditioner all-in-one machine system and control method thereof | |
| CN105627613B (en) | The outdoor unit and air conditioner of air conditioner | |
| CN105546736A (en) | Method for solving accumulated liquid of indoor heat exchanger of multi-split air conditioner during heating | |
| CN104748432B (en) | multiple on-line system | |
| CN215571358U (en) | Compound refrigerating system with natural cooling function | |
| CN205825482U (en) | Air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 266100 Zhuzhou Road, Laoshan District, Qingdao, Shandong Province, No. 151 Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd. Address before: 266736 Hisense Road 1, South Village Town, Pingdu City, Qingdao, Shandong Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |