CN208365626U - A kind of heat pump heating frequency conversion system - Google Patents

A kind of heat pump heating frequency conversion system Download PDF

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Publication number
CN208365626U
CN208365626U CN201820458521.5U CN201820458521U CN208365626U CN 208365626 U CN208365626 U CN 208365626U CN 201820458521 U CN201820458521 U CN 201820458521U CN 208365626 U CN208365626 U CN 208365626U
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frequency
compressor
heat pump
less
temperature value
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闫志强
张会志
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Sanpu Sunlight Technology Co Ltd Beijing
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Sanpu Sunlight Technology Co Ltd Beijing
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Abstract

The utility model relates to a kind of heat pump heating frequency conversion system, which includes air source heat pump, user end, temperature sensor, water pump, frequency converter and controller;The air source heat pump outlet is connected in parallel one end of temperature control valve (TCV) and by-passing valve, the other end of the temperature control valve (TCV) connects the import of the user end, the temperature sensor of the return water temperature value for user end described in real-time detection is provided on the user end, one end of the outlet connecting balanced valve of the user end, the by-passing valve connect the air source heat pump import by the water pump with the other end of balanced valve;The controller is electrically connected the temperature control valve (TCV), temperature sensor and frequency converter, and the frequency converter is electrically connected the water pump, and the utility model can be widely applied in heat pump heating technical field.

Description

A kind of heat pump heating frequency conversion system
Technical field
The utility model is to belong to heat pump heating technical field about a kind of heat pump heating frequency conversion system.
Background technique
As shown in Figure 1, thermodynamic heating system is usually by coolant circulating system, water circulation system and heating terminal equipment group At, wherein heating terminal equipment preferably uses floor heating guard system and fan coil.
Thermodynamic heating system has the following characteristics that the inhomogeneities of 1) cooling and heating load variation is generally wanted in design selection Consider that thermodynamic heating system meets requirement in the minimum situation of atmospheric temperature and has certain design surplus, is heated Room enclosure structure, heat preservation situation, Heating Season time, annual meteorological condition are different, then the requirement of heating load is not yet Together, in this way, user is in usually heating, can not, without oepration at full load, so, heating system can exist biggish Design and operation surplus.For this purpose, frequency-changeable compressor can be used according to load variations situation to the host of thermodynamic heating system, it is right More hosts in parallel can be adjusted using automatic load and unloading, meanwhile, the water pump that thermodynamic heating system matches circulation also must Variable frequency adjustment must be carried out with host otherwise necessarily cause very big energy waste.2) the joint system of heating and refrigeration is generally used System, as shown in Fig. 2, however, the larger water pump guaranteed under cooling condition is typically chosen, in heating if only using a water pump When, it needs to adjust flow and pressure by adjusting throttle valve, this necessarily will cause the loss of electric flux, while also will cause heat It pumps heating system and significantly deviates rated designs situation at runtime.3) room cooling and heating load changes, and the fluctuation of room temperature is equal The components such as compressor, motor and contacts of contactor are caused to damage by the host high frequent start and stop that can make thermodynamic heating system Evil brings adverse effect to the operation of equipment long-term safety.
Summary of the invention
In view of the above problems, the object of the present invention is to provide one kind, and thermodynamic heating system can be made in optimum condition item The heat pump heating frequency conversion system of efficient operation under part and under different load.
To achieve the above object, the utility model takes following technical scheme: a kind of heat pump heating frequency conversion system, feature It is, which includes air source heat pump, user end, temperature sensor, water pump, frequency converter and control Device;The air source heat pump outlet is connected in parallel one end of temperature control valve (TCV) and by-passing valve, the other end of the temperature control valve (TCV) The import of the user end is connected, the return water temperature for user end described in real-time detection is provided on the user end The temperature sensor of value, one end of the outlet connecting balanced valve of the user end, the by-passing valve and balanced valve it is another One end connects the air source heat pump import by the water pump;The controller be electrically connected the temperature control valve (TCV), Temperature sensor and frequency converter, the frequency converter are electrically connected the water pump.
Preferably, which further includes compressor, and the import of the compressor connects the water pump Outlet, the outlet of the compressor connect the import of the air source heat pump.
Preferably, the frequency converter is electrically connected the compressor.
Preferably, the controller uses PLC controller.
Preferably, when winter heating, when indoor temperature value be greater than 19 DEG C, less than 20 DEG C when, the required frequency of the compressor Rate is 35Hz;When indoor temperature value is greater than 18 DEG C, less than 19 DEG C when, the required frequency of the compressor is 50Hz;Work as Indoor Temperature Angle value is greater than 17 DEG C, less than 18 DEG C when, the required frequency of the compressor is 65Hz;When indoor temperature value be greater than 16 DEG C, be less than At 17 DEG C, the required frequency of the compressor is 85Hz;When backwater temperature difference is less than 3 or 5 DEG C, the required frequency of the water pump is 40~45Hz;When backwater temperature difference is greater than 3 or 5 DEG C, the required frequency of the water pump is 50Hz.
Preferably, when cooling in summer, when indoor temperature value be greater than 26 DEG C, less than 27 DEG C when, the required frequency of the compressor Rate is 35Hz;When indoor temperature value is more than or equal to 27 DEG C, less than 28 DEG C when, the required frequency of the compressor is 50Hz;Work as room Interior temperature value is greater than 28 DEG C, less than 29 DEG C when, the required frequency of the compressor is 65Hz;When indoor temperature value be greater than 29 DEG C, When less than 30 DEG C, the required frequency of the compressor is 85Hz;When backwater temperature difference is less than 3 or 5 DEG C, the water pump it is required Frequency is 40~45Hz;When backwater temperature difference is greater than 3 or 5 DEG C, the required frequency of the water pump is 50Hz.
A kind of heat pump heating frequency conversion system, which is characterized in that the heat pump heating frequency conversion system includes air source heat pump, user End, temperature sensor, compressor, frequency converter and controller;The air source heat pump outlet is connected by the user end The compressor inlet is provided on the user end described in the return water temperature value for user end described in real-time detection Temperature sensor, the compressor outlet connect the air source heat pump import;The controller is electrically connected the temperature Sensor and frequency converter, the frequency converter are electrically connected the compressor.
Preferably, the controller uses PLC controller.
Preferably, when winter heating, when indoor temperature value is less than or equal to 25 DEG C, is greater than 24 DEG C, the institute of the compressor Needing frequency is 35Hz;When indoor temperature value is less than or equal to 26 DEG C, is greater than 25 DEG C, the required frequency of the compressor is 50Hz; When indoor temperature value is less than or equal to 27 DEG C, is greater than 26 DEG C, the required frequency of the compressor is 65Hz;When indoor temperature value is big When 27 DEG C, the required frequency of the compressor is 85Hz.
Preferably, when cooling in summer, when indoor temperature value is less than or equal to 25 DEG C, is greater than 24 DEG C, the institute of the compressor Needing frequency is 35Hz;When indoor temperature value is less than or equal to 26 DEG C, is greater than 25 DEG C, the required frequency of the compressor is 50Hz; When indoor temperature value is less than or equal to 27 DEG C, is greater than 26 DEG C, the required frequency of the compressor is 65Hz;When indoor temperature value is big When 27 DEG C, the required frequency of the compressor is 85Hz.
Because the utility model adopts the above technical scheme, it has the following advantages: 1, the utility model is passed using temperature Sensor, frequency converter and PLC controller so that air source heat pump generate heat it is substantially all apply user end refrigeration or In heating, compressor, water pump frequent start-stop will not be led to the problem of, heats or makes by the compressor control being connect with frequency converter Cooling capacity controls the water flow in thermodynamic heating system by the water pump connecting with frequency converter, is organically combined by the two and guarantee room Interior temperature and comfort level, solves the energy waste problem of winter heating.2, the utility model uses frequency converter, adopts in heat pump When warm frequency conversion system starting, impact will not be generated to power grid and kilowatt-hour meter, can be reduced and indoor other electric appliances that are used are done It disturbs, solves in Heating Season, once large area starts heating, due to voltage instability, or even cause air source heat pump normal The problem of use, realizes the high-power and high-effect of air source heat pump, after the starting of heat pump heating frequency conversion system, works as Indoor Temperature When spending lower, it can freeze or heat rapidly, comfortable temperature environment can be quickly obtained.3, it is adopted using the heat pump of the utility model Warm frequency conversion system so that air source heat pump connected to it can low-frequency start, starting current is low, and starting performance is good, is connected thereto The number of starts of compressor about can be reduced 1/10th or so of common invariable frequency compressor, the use of thermodynamic heating system Longer life expectancy can be widely applied in heat pump heating technical field.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of thermodynamic heating system in the prior art;
Fig. 2 is the structural schematic diagram of cold, warm two co-feeding systems in the prior art;
Fig. 3 is structural schematic diagram when using pump variable frequency control mode in the utility model heat pump heating frequency conversion system;
Fig. 4 is structure when using water pump and compressor variable frequency control mode in the utility model heat pump heating frequency conversion system Schematic diagram;
Fig. 5 is electric signal when the utility model heat pump heating frequency conversion system uses water pump and compressor variable frequency control mode Transmit schematic diagram;
Fig. 6 is to be controlled in the utility model heat pump heating frequency conversion system using PLC when water pump and compressor variable frequency control mode The control principle schematic diagram of device processed;
Fig. 7 is in the utility model heat pump heating frequency conversion system using frequency converter when water pump and compressor variable frequency control mode The frequency controlling curve figure of compressor when heating in winter;
Fig. 8 is in the utility model heat pump heating frequency conversion system using frequency converter when water pump and compressor variable frequency control mode The frequency controlling curve figure of compressor in cooling in summer;
Fig. 9 is structural representation when using compressor variable frequency control mode in the utility model heat pump heating frequency conversion system Figure;
Figure 10 is using frequency converter when compressor variable frequency control mode in the utility model heat pump heating frequency conversion system in the winter The frequency controlling curve figure of compressor when season heats;
Figure 11 is using frequency converter when compressor variable frequency control mode in the utility model heat pump heating frequency conversion system in the summer The frequency controlling curve figure of compressor when season freezes.
Specific embodiment
Come to carry out detailed description to the utility model below in conjunction with attached drawing.It should be appreciated, however, that attached drawing is provided only More fully understand the utility model, they should not be interpreted as limitations of the present invention.
Embodiment 1:
As shown in figure 3, heat pump heating frequency conversion system provided by the utility model includes air source heat pump 1, temperature control valve (TCV) 2, by-passing valve 3, user end 4, temperature sensor 5, balanced valve 6, water pump 7, frequency converter 8 and PLC (proportional integral differential) control Device 9.
Air source heat pump 1 exports the one end for being connected in parallel temperature control valve (TCV) 2 and by-passing valve 3, the other end of temperature control valve (TCV) 2 The import of user end 4 is connected, temperature sensor 5 is provided on user end 4, the outlet connecting balanced valve 6 of user end 4 The other end of one end, by-passing valve 3 and balanced valve 6 passes through water pump 7 and connects 1 import of air source heat pump, and temperature control valve (TCV) 2 is used for The temperature of user end 4 is adjusted, by-passing valve 3 in 1 maintenance and debugging of maintenance or air source heat pump of thermodynamic heating system for opening Open use, return water temperature value, that is, current indoor temperature value of the temperature sensor 5 for real-time detection user end 4, balanced valve 6 For finely tuning pressure and flow in heat pump heating frequency conversion system pipeline.
PLC controller 9 is electrically connected temperature control valve (TCV) 2, temperature sensor 5 and frequency converter 8, and frequency converter 8 is electrically connected water receiving Pump 7.
In a preferred embodiment, as shown in figure 4, heat pump heating frequency conversion system further includes compressor 10, compressor The outlet of 10 import connection water pump 7, the import of the outlet connection air source heat pump 1 of compressor 10.
In a preferred embodiment, frequency converter 8 is electrically connected compressor 10.
In a preferred embodiment, as shown in figure 5, being provided with parameter setting module in PLC controller 9, at data Manage module, frequency transformer control module and regulating valve control module.Parameter setting module is used to preset the temperature of user end 4 Value, which can be set according to practical season, and preset temperature value is sent to data processing module.Number It is used to carry out preset temperature value and the temperature value of 5 real-time detection of temperature sensor using PID control method according to processing module Compare, obtains meeting required frequency and temperature tune that 4 load variations of user end require water pump 7/ or water pump 7 and compressor 10 The aperture data of valve 2 are saved, and are sent to frequency transformer control module, wherein PID control method is the prior art, and detailed process exists This is not repeated.Frequency transformer control module is used for according to required frequency, adjusts water pump 7/ or water pump 7 and pressure by frequency converter 8 The frequency of contracting machine 10, so that water pump 7/ or water pump 7 and compressor 10 work according to required frequency, it is ensured that user end 4 is real When the energy-saving run state in high efficiency and optimization.Regulating valve control module is used for according to obtained temperature control valve (TCV) 2 The aperture of aperture data control temperature control valve (TCV) 2.
Using for the utility model heat pump heating frequency conversion system embodiment 1 is described in detail below by specific embodiment Journey:
When using water pump and compressor variable frequency control mode in embodiment 1
1) (winter, indoor heating temperature was generally 20 DEG C) when winter heating
As shown in fig. 6, the temperature sensor 5 on user end 4 is the monitoring work of room temperature in thermodynamic heating system The variation of temperature is sent to PLC controller 9 by temperature sensor 5 by tool, thermodynamic heating system, then by PLC controller 9 It is sent to frequency converter 8 after obtaining the required frequency of water pump 7 and compressor 10 according to preset temperature value, water is adjusted by frequency converter 8 The frequency of pump 7 and compressor 10, so that compressor 10 and water pump 7 are run according to required frequency, to change the heat of air source heat pump 1 Amount improves the frequency of water pump 7 and compressor 10, and then increase the heat of air source heat pump 1 when room temperature is lower, so that The heat exported to user end 3 increases;When room temperature is higher, the frequency of water pump 7 and compressor 10 is reduced, and then reduce The heat of air source heat pump 1, so that the heat of output to user end 3 is reduced.
Using the compressor variable frequency control mode of embodiment 1: as shown in fig. 7, being preset when indoor temperature value is less than or equal to Temperature value (20 DEG C) when, 10 low-frequency operation of water pump 7 and compressor, at this moment the running frequency of compressor 10 be 25Hz.Similarly, When indoor temperature value is greater than 19 DEG C, less than 20 DEG C when, the required frequency of compressor 10 is 35Hz;When indoor temperature value is greater than 18 DEG C, less than 19 DEG C when, the required frequency of compressor 10 is 50Hz;When indoor temperature value be greater than 17 DEG C, less than 18 DEG C when, compressor 10 required frequency is 65Hz;When indoor temperature value is greater than 16 DEG C, less than 17 DEG C when, the required frequency of compressor 10 is 85Hz.
Using the pump variable frequency control mode of embodiment 1: when room temperature meets requirement, temperature plateau, i.e. return water (depending on actual conditions, adjustable settings) when the temperature difference is less than 3 or 5 DEG C, the required frequency of water pump 7 is 40~45Hz, when Indoor Temperature not Steadily, i.e., (depending on actual conditions, adjustable settings) when confession, backwater temperature difference are greater than 3 or 5 DEG C, the required frequency of water pump 7 is 50Hz.
2) (room temperature of cooling in summer is generally 26 DEG C) when cooling in summer
The variation of temperature is sent to PLC controller 9 by temperature sensor 5 by thermodynamic heating system, then by PLC controller 9 the required frequency of water pump 7 and compressor 10 is obtained according to preset temperature value after be sent to frequency converter 8, adjusted by frequency converter 8 The frequency of water pump 7 and compressor 10, so that compressor 10 and water pump 7 are run according to required frequency, to change air source heat pump 1 Heat reduces the frequency of water pump 7 and compressor 10, and then reduce the heat of air source heat pump 1, makes when room temperature is lower It must export to the heat reduction of user end 3;When room temperature is higher, the frequency of water pump 7 and compressor 10, Jin Erzeng are improved Add the heat of air source heat pump 1, so that the heat of output to user end 3 increases.
Using the compressor variable frequency control mode of embodiment 1: as shown in figure 8, when indoor temperature value is less than or equal to preset When temperature value (26 DEG C), 10 low-frequency operation of water pump 7 and compressor, at this moment the working frequency of compressor 10 is 25Hz.Work as Indoor Temperature Angle value is greater than 26 DEG C, less than 27 DEG C when, the required frequency of compressor 10 is 35Hz;When indoor temperature value be more than or equal to 27 DEG C, it is small When 28 DEG C, the required frequency of compressor 10 is 50Hz;When indoor temperature value be greater than 28 DEG C, less than 29 DEG C when, compressor 10 Required frequency is 65Hz;When indoor temperature value is greater than 29 DEG C, less than 30 DEG C when, the required frequency of compressor 10 is 85Hz.
Using the pump variable frequency control mode of embodiment 1: when room temperature meets requirement, temperature plateau, that is, supplying, return (depending on actual conditions, adjustable settings) when water temperature difference is less than 3 or 5 DEG C, frequency converter 8 controls water pump 7 and transports between 40~45Hz Row, when Indoor Temperature is unstable, i.e., confession, backwater temperature difference are greater than 3 or 5 DEG C (depending on actual conditions, adjustable settings), frequency converter 8 is controlled Water pump 7 processed is run in 50Hz.
Embodiment 2:
The present embodiment and the structure of embodiment 1 are essentially identical, the difference is that the present embodiment removal temperature control valve (TCV) 2, By-passing valve 3 and balanced valve 6.As shown in figure 9, the outlet of air source heat pump 1 passes through 4 connect compressor of user end, 10 import, compression The outlet of machine 10 connection 1 import of air source heat pump, temperature sensor 5 are arranged on user end 4, are used for real-time detection user end The indoor temperature value of 4 return water temperature value, that is, current.
PLC controller 9 is electrically connected temperature sensor 5 and frequency converter 8, and frequency converter 8 is electrically connected compressor 10.
In a preferred embodiment, parameter setting module, data processing module and change are provided in PLC controller 9 Frequency device control module.Parameter setting module is used to preset the temperature value of user end 4, which can be according to practical season Section is set, and preset temperature value is sent to data processing module.Data processing module is used to use PID control Preset temperature value is compared by method with the temperature value of 5 real-time detection of temperature sensor, obtains meeting 4 load of user end Variation requires the required frequency of compressor 10, and is sent to frequency transformer control module, wherein and PID control method is the prior art, Detailed process does not repeat herein.Frequency transformer control module is used for according to required frequency, adjusts compressor 10 by frequency converter 8 Frequency so that compressor 10 works according to required frequency, it is ensured that user end 4 is in real time in high efficiency and optimization Energy-saving run state.
Using for the utility model heat pump heating frequency conversion system embodiment 2 is described in detail below by specific embodiment Journey:
1) (winter, indoor heating temperature was generally 18~20 DEG C) when winter heating
The variation of temperature is sent to PLC controller 9 by temperature sensor 5 by air source heat pump 1, and PLC controller 9 The required frequency variation of compressor 10 is obtained according to preset temperature value to change the heat of air source heat pump 1.When room temperature compared with When low, the frequency of compressor 10 is improved, and then increase the heat of air source heat pump 1, so that the heat of output to user end 3 increases Add;When room temperature is higher, the frequency of compressor 10 is reduced, and then reduce the heat of air source heat pump 1, so that output is extremely The heat of user end 3 is reduced.
As shown in Figure 10, when indoor temperature value is more than or equal to preset temperature value (20 DEG C), 10 low-frequency operation of compressor, Its running frequency is 25Hz, show that related data is the input work of compressor 10 when 10~30Hz changes by test of many times Rate is slowly increased, therefore combines the actual conditions of air source heat pump 1, and the required frequency of compressor 10 is 25Hz.Work as room temperature Value be less than set temperature (20 DEG C) when, according to experimental data, the required frequency of compressor 10 is as follows: when indoor temperature value be greater than etc. In 19 DEG C, less than 20 DEG C when, the required frequency of compressor 10 is 35Hz;When indoor temperature value is more than or equal to 18 DEG C, less than 19 DEG C When, the required frequency of compressor 10 is 50Hz;When indoor temperature value be more than or equal to 17 DEG C, less than 18 DEG C when, the institute of compressor 10 Needing frequency is 65Hz;When indoor temperature value is less than 17 DEG C, the required frequency of compressor 10 is 85Hz.
2) (cryogenic temperature of Summer Indoor is generally 24~26 DEG C) when cooling in summer
The variation of temperature is sent to PLC controller 9 by temperature sensor 5 by air source heat pump 1, and PLC controller 9 The required frequency variation of compressor 10 is obtained according to preset temperature value to change the heat of air source heat pump 1.When room temperature compared with When low, the frequency of compressor 10 is reduced, and then reduce the heat of air source heat pump 1, so that heat of the output to user end 3 subtracts It is few;When room temperature is higher, the frequency of compressor 10 is improved, and then increase the heat of air source heat pump 1, so that output is extremely The heat of user end 3 increases.
As shown in figure 11, when indoor temperature value is less than or equal to preset temperature value (24 DEG C), 10 low-frequency operation of compressor, Its running frequency is 25Hz: showing that related data is the input work of compressor 10 when 10~30Hz changes by test of many times Rate is slowly increased, therefore combines the actual conditions of air source heat pump 1, and the required frequency of compressor 10 is 25Hz.Work as room temperature Value be higher than set temperature (24 DEG C) when, according to experimental data, the required frequency of compressor 10 is as follows: when indoor temperature value be less than etc. In 25 DEG C, be greater than 24 DEG C when, the required frequency of compressor 10 is 35Hz;When indoor temperature value is less than or equal to 26 DEG C, greater than 25 DEG C When, the required frequency of compressor 10 is 50Hz;When indoor temperature value is less than or equal to 27 DEG C, is greater than 26 DEG C, the institute of compressor 10 Needing frequency is 65Hz;When indoor temperature value is greater than 27 DEG C, the required frequency of compressor 10 is 85Hz.
As shown in Fig. 7, Fig. 8, Figure 10 and Figure 11, frequency control mode in the utility model is illustrated in a manner of more intuitive The condition of setting, it can be seen that frequency is higher, and 10 revolving speed of compressor is higher, and actual output power is bigger;Frequency is lower, pressure 10 revolving speed of contracting machine is slower, and actual output power is smaller, and image is illustrated when variation of ambient temperature, and the frequency of compressor 10 becomes Change situation.
The various embodiments described above are merely to illustrate the utility model, wherein the structure of each component, connection type and manufacture craft Etc. may be changed, all equivalents and improvement carried out on the basis of technical solutions of the utility model, It should not exclude except the protection scope of the utility model.

Claims (10)

1. a kind of heat pump heating frequency conversion system, which is characterized in that the heat pump heating frequency conversion system includes air source heat pump, Yong Humo End, temperature sensor, water pump, frequency converter and controller;
The air source heat pump outlet is connected in parallel one end of temperature control valve (TCV) and by-passing valve, the other end of the temperature control valve (TCV) The import of the user end is connected, the return water temperature for user end described in real-time detection is provided on the user end The temperature sensor of value, one end of the outlet connecting balanced valve of the user end, the by-passing valve and balanced valve it is another One end connects the air source heat pump import by the water pump;
The controller is electrically connected the temperature control valve (TCV), temperature sensor and frequency converter, and the frequency converter is electrically connected institute State water pump.
2. a kind of heat pump heating frequency conversion system as described in claim 1, which is characterized in that the heat pump heating frequency conversion system also wraps Compressor is included, the import of the compressor connects the outlet of the water pump, and the outlet of the compressor connects the air-source heat The import of pump.
3. a kind of heat pump heating frequency conversion system as claimed in claim 2, which is characterized in that the frequency converter is electrically connected the pressure Contracting machine.
4. a kind of heat pump heating frequency conversion system as described in any one of claims 1 to 3, which is characterized in that the controller is adopted Use PLC controller.
5. a kind of heat pump heating frequency conversion system as claimed in claim 3, which is characterized in that when winter heating, work as room temperature Value is greater than 19 DEG C, less than 20 DEG C when, the required frequency of the compressor is 35Hz;When indoor temperature value is greater than 18 DEG C, less than 19 DEG C when, the required frequency of the compressor is 50Hz;When indoor temperature value be greater than 17 DEG C, less than 18 DEG C when, the compressor Required frequency is 65Hz;When indoor temperature value is greater than 16 DEG C, less than 17 DEG C when, the required frequency of the compressor is 85Hz;
When backwater temperature difference is less than 3 or 5 DEG C, the required frequency of the water pump is 40~45Hz;When backwater temperature difference is greater than 3 or 5 DEG C When, the required frequency of the water pump is 50Hz.
6. a kind of heat pump heating frequency conversion system as claimed in claim 3, which is characterized in that when cooling in summer, work as room temperature Value is greater than 26 DEG C, less than 27 DEG C when, the required frequency of the compressor is 35Hz;When indoor temperature value be more than or equal to 27 DEG C, it is small When 28 DEG C, the required frequency of the compressor is 50Hz;When indoor temperature value be greater than 28 DEG C, less than 29 DEG C when, the compression The required frequency of machine is 65Hz;When indoor temperature value be greater than 29 DEG C, less than 30 DEG C when, the required frequency of the compressor is 85Hz;
When backwater temperature difference is less than 3 or 5 DEG C, the required frequency of the water pump is 40~45Hz;When backwater temperature difference is greater than 3 or 5 DEG C When, the required frequency of the water pump is 50Hz.
7. a kind of heat pump heating frequency conversion system, which is characterized in that the heat pump heating frequency conversion system includes air source heat pump, Yong Humo End, temperature sensor, compressor, frequency converter and controller;
The air source heat pump outlet connects the compressor inlet by the user end, is provided on the user end The temperature sensor of return water temperature value for user end described in real-time detection, the compressor outlet connect the sky Air supply heat pump import;
The controller is electrically connected the temperature sensor and frequency converter, and the frequency converter is electrically connected the compressor.
8. a kind of heat pump heating frequency conversion system as claimed in claim 7, which is characterized in that the controller is controlled using PLC Device.
9. a kind of heat pump heating frequency conversion system as claimed in claim 7, which is characterized in that when winter heating, work as room temperature When value is less than or equal to 25 DEG C, is greater than 24 DEG C, the required frequency of the compressor is 35Hz;When indoor temperature value is less than or equal to 26 DEG C, when being greater than 25 DEG C, the required frequency of the compressor is 50Hz;When indoor temperature value is less than or equal to 27 DEG C, is greater than 26 DEG C, The required frequency of the compressor is 65Hz;When indoor temperature value is greater than 27 DEG C, the required frequency of the compressor is 85Hz.
10. a kind of heat pump heating frequency conversion system as claimed in claim 7, which is characterized in that when cooling in summer, work as room temperature When value is less than or equal to 25 DEG C, is greater than 24 DEG C, the required frequency of the compressor is 35Hz;When indoor temperature value is less than or equal to 26 DEG C, when being greater than 25 DEG C, the required frequency of the compressor is 50Hz;When indoor temperature value is less than or equal to 27 DEG C, is greater than 26 DEG C, The required frequency of the compressor is 65Hz;When indoor temperature value is greater than 27 DEG C, the required frequency of the compressor is 85Hz.
CN201820458521.5U 2018-04-03 2018-04-03 A kind of heat pump heating frequency conversion system Active CN208365626U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110686364A (en) * 2019-10-18 2020-01-14 广东美的暖通设备有限公司 Air conditioner control method and device and computer readable storage medium
CN111947227A (en) * 2020-08-19 2020-11-17 宁波奥克斯电气股份有限公司 Heat exchange control method and device for two-combined-supply system and two-combined-supply system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110686364A (en) * 2019-10-18 2020-01-14 广东美的暖通设备有限公司 Air conditioner control method and device and computer readable storage medium
CN111947227A (en) * 2020-08-19 2020-11-17 宁波奥克斯电气股份有限公司 Heat exchange control method and device for two-combined-supply system and two-combined-supply system

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