CN208154726U - Earth source heat pump variable frequency energy-saving controller - Google Patents
Earth source heat pump variable frequency energy-saving controller Download PDFInfo
- Publication number
- CN208154726U CN208154726U CN201820643660.5U CN201820643660U CN208154726U CN 208154726 U CN208154726 U CN 208154726U CN 201820643660 U CN201820643660 U CN 201820643660U CN 208154726 U CN208154726 U CN 208154726U
- Authority
- CN
- China
- Prior art keywords
- heat pump
- temperature sensor
- source heat
- earth source
- water temperature
- 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
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Earth source heat pump variable frequency energy-saving controller, PID controller is connected through frequency converter with the output end of the compressor of earth source heat pump by frequency conversion voltage follower circuit, supply water temperature sensor, return water temperature sensor, motor speed sensor and environment temperature sensor are connected with PID controller respectively, supply water temperature sensor is arranged on the pipeline between submersible pump outlet hydrocyclone and the evaporator of earth source heat pump, return water temperature sensor is arranged on the export pipeline of the evaporator of earth source heat pump, motor speed sensor is arranged within the compressor, environment temperature sensor setting is indoors on blower.The utility model on existing geographical heat-pump apparatus by increasing PID controller and frequency converter, pass through the feedback of operational process motor speed, supply backwater temperature difference, ambient temperature data, realize the intelligent control to geographical operation of heat pump, effectively reduce earth source heat pump power consumption, earth source heat pump motor starting process will become steadily, to effectively prevent water hammer effect caused by ordinary motor.
Description
Technical field
The utility model relates to geothermal heat pump air-conditioner field of energy-saving technology, and in particular to a kind of earth source heat pump energy-saving and frequency-variable control
Device processed.
Background technique
Ground source heat pump technology category renewable energy utilization technology.Since earth source heat pump is that earth surface geothermal is utilized
Resource (usually less than 400 meters of depths) is used as Cooling and Heat Source, carries out the heating air-conditioner system of energy conversion.Shallow surface geothermal energy resources can
With referred to as can, refer to surface soil, underground water or river, absorb solar energy, geothermal energy and the low temperature position contained in lake
Thermal energy.Shallow surface is a huge solar thermal collector, has collected 47% solar energy, more annual than the mankind to utilize energy
500 times it is more, it not by region, resource etc. limit.
Existing ground source heat pump control system is unable to satisfy the inhomogeneities of air conditioner load variation, designs in heat pump air conditioner
Cheng Zhongwei guarantees atmospheric temperature is minimum, meets requirement in the maximum situation of calorific requirement, so designing by peak load
And there are surplus, can not reach at full capacity when usually using, so causing the waste of electric energy there are larger surplus；Water system
Flow, pressure are adjusted in system by throttle valve or regulating valve, there are larger restriction losses.A large amount of electric energy are not only wasted, but also
It may also result in the situation that operation of air conditioner significantly deviates rated designs, detrimental effect brought to system equipment；Existing ground source
The control of heat pump computer room is mostly that star triangle start controls ordinary motor water circulating pump, and starting current is usually 5-7 times of rated value, electricity
Machine carries out frequent start-stop under so big rush of current, generates electric arc to motor, contacts of contactor, air shape contact
Impact, also can bring certain impact to power grid.Bring water hammer effect causes very big damage to pipe network when motor directly initiates simultaneously
Evil, accelerates the fatigue damage of machine driving, bearing, valve, pipeline etc., especially after the length of service is longer, this is asked
Topic can be more prominent.
Utility model content
The utility model provides a kind of earth source heat pump variable frequency energy-saving controller, big to solve operation energy consumption existing for technology
The problem of with equipment fluctuation of service.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of earth source heat pump variable frequency energy-saving controller, including PID controller, frequency conversion voltage follower circuit, frequency converter, confession
Water temperature sensor, return water temperature sensor, motor speed sensor and environment temperature sensor, PID controller pass through frequency conversion
Voltage follower circuit is connected through frequency converter with the output end of the compressor of earth source heat pump, and supply water temperature sensor, return water temperature pass
Sensor, motor speed sensor and environment temperature sensor are connected with PID controller respectively, and the setting of supply water temperature sensor is latent
On pipeline between exit of pump hydrocyclone and the evaporator of earth source heat pump, return water temperature sensor is arranged in earth source heat pump
Evaporator export pipeline on, motor speed sensor is arranged within the compressor, environment temperature sensor setting wind indoors
On machine.
The utility model analyzes the parameter that ground-source heat pump system is affected, including motor speed, for return water temperature
Difference, frequency and voltage, environment temperature etc. of frequency converter output, by the careful measurement to on-site parameters, using data fitting and
The mathematical methods such as recurrence, specify the related law between system parameter；For non-linear, large time delay, can cooling and warming ground source
Heat pump system is suitable for the parameter association rule using fuzzy control, based on system, is analyzed it and built using fuzzy theory
The control parameter of PID controller is calculated in mould based on the feedback signal.When utility model device is run, immersible pump is by underground
Water is sent by hydrocyclone into the evaporator of earth source heat pump unit, and the return water after heat exchange is recycled back to ground well, ground source heat
Law level energy is converted to high-lying well by compressor in pump, provides heat source or cold source, operational process by indoor fan for user
Middle supply water temperature sensor, return water temperature sensor, motor speed sensor and environment temperature sensor respectively by supply water temperature,
Return water temperature, motor speed and ambient temperature data are sent into PID controller, PID controller is according to environment temperature and target temperature
It is poor to spend difference, motor speed and supply and return water temperature, corresponding variable-frequency electric is exported by control frequency conversion voltage follower circuit and is depressed into change
Frequency device, according to the frequency conversion voltage of input, frequency converter exports corresponding control frequency to compressor, compressor according to control frequency into
The adjusting of row revolving speed, and then change the capacity of compressor.
The utility model passes through operational process by increasing PID controller and frequency converter on existing geographical heat-pump apparatus
The feedback of motor speed, supply backwater temperature difference, ambient temperature data realizes the intelligent control to geographical operation of heat pump, effectively drops
Low earth source heat pump power consumption, earth source heat pump motor starting process will become steadily, to effectively prevent caused by ordinary motor
Water hammer effect extends the pipe network service life, saves the thus bring pipe network cost of repairs.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of utility model device.
1 immersible pump in figure, 2 hydrocyclones, 3 evaporators, 4 compressors, 5 condensers, 6 indoor fans, 7PID controller,
8 frequency conversion voltage follower circuits, 9 frequency converters, 10 supply water temperature sensors, 11 return water temperature sensors, 12 motor speed sensors,
13 environment temperature sensors.
Specific embodiment
As shown in the figure：A kind of earth source heat pump variable frequency energy-saving controller, including PID controller 7, frequency conversion voltage follower circuit
8, frequency converter 9, supply water temperature sensor 10, return water temperature sensor 11, motor speed sensor 12 and environment temperature sensor
13, PID controller 7 is connected through frequency converter 9 with the output end of the compressor 4 of earth source heat pump by frequency conversion voltage follower circuit 8, is supplied
Water temperature sensor, return water temperature sensor, motor speed sensor and environment temperature sensor respectively with PID controller phase
Even, supply water temperature sensor is arranged on the pipeline between 1 discharge swirl desander 2 of immersible pump and the evaporator 3 of earth source heat pump,
Return water temperature sensor is arranged on the export pipeline of evaporator 3 of earth source heat pump, and motor speed sensor is arranged in compressor
In, environment temperature sensor setting is indoors on blower 6.
The utility model analyzes the parameter that ground-source heat pump system is affected, including motor speed, for return water temperature
Difference, frequency and voltage, environment temperature etc. of frequency converter output, by the careful measurement to on-site parameters, using data fitting and
The mathematical methods such as recurrence, specify the related law between system parameter；For non-linear, large time delay, can cooling and warming ground source
Heat pump system is suitable for the parameter association rule using fuzzy control, based on system, is analyzed it and built using fuzzy theory
The control parameter of PID controller is calculated in mould based on the feedback signal.When utility model device is run, immersible pump is by underground
Water is sent by hydrocyclone into the evaporator of earth source heat pump unit, and the return water after heat exchange is recycled back to ground well, ground source heat
Law level energy is converted to high-lying well by evaporator 3, compressor 4 and condenser 5 in pump, provides heat by indoor fan for user
Source or cold source, supply water temperature sensor, return water temperature sensor, motor speed sensor and environment temperature sensing in operational process
Device respectively send supply water temperature, return water temperature, motor speed and ambient temperature data into PID controller, PID controller according to
Environment temperature and target temperature difference, motor speed and supply and return water temperature are poor, pass through control frequency conversion voltage follower circuit output pair
The variable-frequency electric answered is depressed into frequency converter, and according to the frequency conversion voltage of input, frequency converter exports corresponding control frequency to compressor, compression
Machine carries out the adjusting of revolving speed according to control frequency, and then changes the capacity of compressor.
Since the power of earth source heat pump is larger, power consumption is considerable, after Frequency Conversion Modification, most direct economic effect
Benefit is exactly to save a large amount of electric energy.With coastal high speed（Cangzhou section）For earth source heat pump motor used, earth source heat pump motor when work
Power is 18.5kW × 2=37kW, if its annual work 7 months, need to consume electric energy 7 months × 30 day × 24 hour ×
37kW=18.648 ten thousand degree of electricity reduces 15% according to power consumption after frequency conversion, then saves about 2.7972 ten thousand degree of electricity of electric energy every year, with
Every 1 yuan of degree electricity charge meter, then every year can be about 2.7972 ten thousand yuan of power cost saving.
After frequency control, earth source heat pump motor starting process will become steadily, to effectively prevent ordinary motor and lead
The water hammer effect of cause can effectively extend the pipe network service life, save the thus bring pipe network cost of repairs, manage broken maintenance cost every time
About 3.5 ten thousand yuan, as the service life of the equipment increases, if not changing electric motor starting state, the accident rate managed brokenly also can be by
Cumulative to add, maintenance cost will be a no small spending.
When earth source heat pump work is under Frequency Converter Control, the active power of consumption is reduced, the capacity of corresponding power supply unit
It can also reduce, such as supply transformer, thus can save construction cost, newly-built or reconstruction project relevant cost can be saved.
Claims (1)
1. a kind of earth source heat pump variable frequency energy-saving controller, it is characterized in that including PID controller, frequency conversion voltage follower circuit, becoming
Frequency device, supply water temperature sensor, return water temperature sensor, motor speed sensor and environment temperature sensor, PID controller are logical
It crosses frequency conversion voltage follower circuit and is connected through frequency converter with the output end of the compressor of earth source heat pump, supply water temperature sensor, return water
Temperature sensor, motor speed sensor and environment temperature sensor are connected with PID controller respectively, and supply water temperature sensor is set
It sets on the pipeline between submersible pump outlet hydrocyclone and the evaporator of earth source heat pump, return water temperature sensor is arranged on ground
On the export pipeline of the evaporator of source heat pump, motor speed sensor is arranged within the compressor, and environment temperature sensor setting exists
On indoor fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820643660.5U CN208154726U (en) | 2018-05-02 | 2018-05-02 | Earth source heat pump variable frequency energy-saving controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820643660.5U CN208154726U (en) | 2018-05-02 | 2018-05-02 | Earth source heat pump variable frequency energy-saving controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208154726U true CN208154726U (en) | 2018-11-27 |
Family
ID=64377318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820643660.5U Active CN208154726U (en) | 2018-05-02 | 2018-05-02 | Earth source heat pump variable frequency energy-saving controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208154726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353289A (en) * | 2021-12-21 | 2022-04-15 | 山东省煤田地质局第四勘探队 | Rock-soil heat exchanger circulating water pump control device and control method |
-
2018
- 2018-05-02 CN CN201820643660.5U patent/CN208154726U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353289A (en) * | 2021-12-21 | 2022-04-15 | 山东省煤田地质局第四勘探队 | Rock-soil heat exchanger circulating water pump control device and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103452824B (en) | Based on the energy saving in fans and pumps system of the minimum power algorithm of flow-power curve | |
| CN1293346C (en) | Energy-saving central air conditioning system | |
| CN103195698B (en) | Become the energy-saving control method that in water level water intake pumping station, water pump synchronous speed change regulates | |
| CN201255459Y (en) | Weather compensator | |
| CN104534627A (en) | Comprehensive efficiency control method of central air-conditioning cooling water system | |
| CN101556068A (en) | Constant pressure frequency conversion energy-saving control method of recycle pump in central air-conditioning system | |
| CN201014677Y (en) | Central air-conditioning intelligent group control device | |
| CN208154726U (en) | Earth source heat pump variable frequency energy-saving controller | |
| CN101922773A (en) | Changeable flow ground source heat pump unit system, controller and control method | |
| CN102570504A (en) | Frequency-conversion main power supply system for thermal power plant | |
| CN207004782U (en) | Environmental Power Plant circulating water energy-saving device | |
| CN202149568U (en) | Cold-hot water set and central air-conditioning system | |
| CN202032705U (en) | Novel intelligent ground source heat pump control system | |
| CN205261848U (en) | Central air conditioning's follow -up control power saving device | |
| CN203396028U (en) | Power-saving system of central air conditioner | |
| CN201476187U (en) | Dynamic energy saving system of central air-conditioning | |
| CN101363654B (en) | Power-saving device of central air-conditioning | |
| CN203964267U (en) | Central air-conditioning Auto-matching load energy conserving system | |
| CN206593269U (en) | A kind of frequency conversion power saving control device | |
| CN203024338U (en) | Energy-saving control device of central air conditioner and central air conditioner | |
| CN201322411Y (en) | Electricity-saving device for central air conditioner | |
| CN203771626U (en) | Central air conditioner control system based on PLC and frequency conversion technology | |
| CN203501386U (en) | Frequency conversion driving system of central air conditioner | |
| CN202707449U (en) | Pipeline constant-pressure conveying starting disk for liquid | |
| CN202209820U (en) | Flooded variable-flow underground water source heat pump unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |