CN207907445U - A kind of control system for heat pump based on temperature curve - Google Patents
A kind of control system for heat pump based on temperature curve Download PDFInfo
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- CN207907445U CN207907445U CN201721670167.4U CN201721670167U CN207907445U CN 207907445 U CN207907445 U CN 207907445U CN 201721670167 U CN201721670167 U CN 201721670167U CN 207907445 U CN207907445 U CN 207907445U
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- temperature
- heat pump
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- water tank
- temperature sensor
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Abstract
The utility model provides a kind of control system for heat pump based on temperature curve, including：Heat pump, heat pump control device；The heat pump control device, including：Indoor temperature transmitter, outdoor temperature sensor, water tank temperature sensor, return water temperature sensor (25), central controller unit；The indoor temperature transmitter is set on indoor unit (6), the outdoor temperature sensor is set on outdoor unit (7), the return water temperature sensor (25) is set in the connecting pipe between water tank (5) and condenser (13), and the water tank temperature sensor is set in water tank (5)；The indoor temperature transmitter, outdoor temperature sensor, water tank temperature sensor, return water temperature sensor (25) are connected to central controller unit.The control system for heat pump of the utility model realizes the auto-controll operation of heat pump, easy to operate, solves general domestic consumer and operates with inconvenient difficulty.
Description
Technical field
The utility model is related to air conditioner controlling technology field, specially a kind of control system for heat pump based on temperature curve.
Background technology
Air source heat pump is widely promoted and applied under the overall situation of current energy-saving and emission-reduction, is national " coal changes electricity " political affairs
The preferred unit of plan.But after air source heat pump needs artificial sensing outside temperature, then artificial selection operating mode, not
Under same operating mode, it is also necessary to artificial setting return water temperature so that control system is complicated, for general domestic consumer,
It increases and operates with difficulty.
Application No. is 201220148179.1 Chinese patents, disclose a kind of integrated air-conditioning system of heat pump fresh air, such as Fig. 1
It is shown, with heat pump unit 1, fresh air unit 2 and control unit, there is heating and the two kinds of operating modes that freeze, but its pattern
Switching, the temperature control especially in each pattern can only be carried out by way of setting by hand, and the degree of automation is not high, uses
Inconvenience, there is an urgent need to be improved.
Utility model content
To solve the above problems, the utility model provides a kind of control system for heat pump based on temperature curve, realize
The auto-controll operation of heat pump, it is easy to operate, it solves general domestic consumer and operates with inconvenient difficulty.
For the realization technical purpose, the technical solution of the utility model is：A kind of heat pump control based on temperature curve
System, including：Heat pump, heat pump control device；
The heat pump, including：Condenser, evaporator, compressor；
The condenser, evaporator, compressor are connected by refrigerant tubing and are formed into a loop, and are connected outside the condenser
Water；The evaporator is set in outdoor unit, and the condenser and compressor, water tank are set in indoor unit；
The heat pump control device, including：Indoor temperature transmitter, water tank temperature sensor, returns at outdoor temperature sensor
Water temperature sensor, central controller unit；The indoor temperature transmitter is set on indoor unit, the outdoor temperature sensing
Device is set on outdoor unit, and the return water temperature sensor is set in the connecting pipe between water tank and condenser, the water
Case temperature sensor is set in water tank；The indoor temperature transmitter, water tank temperature sensor, returns at outdoor temperature sensor
Water temperature sensor is connected to central controller unit.
Further, switching value is arranged outside the central controller unit output unit is isolated and connects relay, for controlling
The working condition of compressor processed.
Further, pressure inverting unit is set outside the central controller unit and connects pressure acquisition unit, for adopting
Collect the working condition of compressor.
As the preferred of the utility model, keyboard is set outside the central controller unit, keyboard passes through keyboard scan list
Member is connected to central controller unit, for setting water tank；
Liquid crystal display is set outside the central controller unit, for the working condition for showing compressor, indoor room
Outer temperature, water tank temperature, return water temperature.
The beneficial effects of the utility model are：
1) control system for heat pump of the utility model does not need manual operation, according to indoor air temperature, automatically controls heating system
It is cold so that indoor air temperature maintains 20-26 DEG C of isoperibol.
2) control system for heat pump of the utility model does not need artificial perception outdoor temp under refrigeration or heating mode
The return water temperature of water tank is set again after degree, keeps away the intelligent domestic system realized truly.
To sum up, the control system for heat pump of the utility model realizes the auto-controll operation of heat pump, easy to operate, solves
General domestic consumer operates with inconvenient difficulty.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model heat pump；
Fig. 2 is the structural schematic diagram of the utility model outdoor unit；
Fig. 3 is the structural schematic diagram of the utility model indoor unit；
Fig. 4 is the utility model outdoor temperature and the versus temperature of return water temperature；
Fig. 5 is the flow chart of the utility model heat pump control method；
Fig. 6 is the circuit module schematic diagram of the heat pump control device of the utility model；
Fig. 7 is the module diagram of the control system for heat pump of the utility model.
Specific implementation mode
The technical solution of the utility model will be clearly and completely described below.
The embodiment of the utility model is as follows：A kind of heat pump control method based on temperature curve, as shown in Fig. 5, packet
Include following steps：
P1：Water tank temperature and heat pump operating mode rate-determining steps；
P2：The step of return water temperature being set according to outdoor temperature；
P3：According to the magnitude relationship of setting return water temperature value and measurement return water temperature value, pass through central controller unit, control
The step of heating pump interval work.
Further, the step P1 water tank temperatures and heat pump operating mode rate-determining steps include the following steps：
S1：Artificial setting water tank temperature value T1；
S2：The water tank temperature setting value T1 magnitude relationships in current water tank temperature value T2 and step S1 are measured, in current water
When box temperature angle value T2 is less than water tank temperature setting value T1, step S3 is carried out, otherwise carries out step S4；Meanwhile it is new as this practicality
A kind of preferred embodiment of type cannot reach user-defined water tank temperature setting value T1 in current water tank temperature value T2,
Especially when current water tank temperature value T2 is less than at least 5 DEG C of water tank temperature setting value T1, just progress step S3.
S3：Heat pump work is controlled by central controller unit, condenser 13 constantly radiates, into hot water model, makes
It obtains water tank temperature and is constantly increased to T1, to meet the needs of user is to water the temperature inside the box；
S4：Indoor temperature monitors, and selects heat pump to enter heating by central controller unit according to indoor temperature T3
One kind of pattern or refrigeration mode.
Further, the step S4 when temperature T3 is more than 26 DEG C indoors, is controlled by constantly detecting indoor temperature T3
Heat pump enters refrigeration mode；When temperature T3 is less than 18 DEG C indoors, control heat pump enters heating mode.It is carried out according to indoor temperature
Selection heating or refrigeration mode so that indoor temperature is maintained at 20-26 DEG C of suitable environment temperature, has reached and has automatically controlled, makes
With convenient purpose.
Further, it is according to the step of outdoor temperature control return water temperature in the step P2：Detect outdoor temperature T4, root
According to the temperature curve relationship of outdoor temperature T4 and return water temperature, return water temperature is set as T5.Outdoor temperature T4 and return water temperature
Temperature curve relationship is that indoor temperature is maintained at a temperature of 20-26 DEG C of suitable environment, with outdoor temp angle value and return water temperature
Value is what variable was tested.The control technology of temperature makes heat pump under heating or refrigeration mode so that compressor chamber
Every work, reach energy-efficient purpose.
Further, as shown in figure 4, the temperature curve relationship of the outdoor temperature T4 and return water temperature is：
Outdoor temperature be less than 0 DEG C when (line segment is 3.), return water temperature T5=k1*T4+25, wherein k1 value ranges be-
0.5~-0.8；Preferably, k1 may be selected to be -0.75.
Outdoor temperature be more than 20 DEG C, (line segment is 1.) return water temperature be T5=k2*T4+40, wherein k2 value ranges be-
0.5~-0.8；Preferably, k1 may be selected to be -0.75.
In outdoor temperature when between 0~20 DEG C (line segment is 2.), return water temperature T5 is constant to be set as 25 DEG C.
Further, according to the magnitude relationship of setting return water temperature value and measurement return water temperature value, control in the step P3
The step of heat pump interval works includes that heat pump interval works under heat pump interval job control step and refrigeration mode under heating mode
Rate-determining steps；
Heat pump interval job control step includes under the heating mode：
S5：Return water temperature T6 is measured,
S6：Judge the magnitude relationship of return water temperature T6 and the return water temperature setting value T5,
When return water temperature T6 is less than the return water temperature setting value T5, control heat pump work, otherwise heat pump is in standby
State or progress step P1 detect water tank temperature again, determine heat pump working condition；
Heat pump interval job control step includes under the refrigeration mode：
S7：Return water temperature T6 is measured,
S8：Judge the magnitude relationship of return water temperature T6 and the return water temperature setting value T5,
When return water temperature T6 is more than the return water temperature setting value T5, control heat pump work；
In the step S6, it is less than return water temperature setting value T5 time controls in return water temperature T6 and heats pump work.
Further, it in the step S6, when return water temperature T6 is more than at least 5 DEG C of the return water temperature setting value T5, carries out
Step P1 detects water tank temperature again, determines that heat pump is operated in hot water model, at least one of refrigeration mode, heating mode；
In the step S8, when return water temperature T6 is less than at least 5 DEG C of the return water temperature setting value T5, step P1 is carried out.
A kind of control system for heat pump based on temperature curve, including：Heat pump, heat pump control device；
The heat pump, including：Condenser 13, evaporator 16, compressor 11；
The condenser 13, evaporator 16, compressor 11 are connected by refrigerant tubing and are formed into a loop, and the condenser
Water tank 5 is connected outside 13；The evaporator 16 is set in outdoor unit 7, and the condenser 13 and compressor 11, water tank 5 are set to
In indoor unit 6；
The heat pump control device, including：Indoor temperature transmitter, water tank temperature sensor, returns at outdoor temperature sensor
Water temperature sensor 25, central controller unit；The indoor temperature transmitter is set on indoor unit 6, the outdoor temperature
Sensor is set on outdoor unit 7, and the return water temperature sensor 25 is set to the connecting pipe between water tank 5 and condenser 13
On, the water tank temperature sensor is set in water tank 5；The indoor temperature transmitter, outdoor temperature sensor, water tank temperature
Sensor, return water temperature sensor 25 are connected to central controller unit.
Condenser 13 connects water tank 5 by circulating pump 24.
Such as Fig. 1, shown in 2,3, the heat pump described in the utility model, including：Heat pump unit 1, fresh air unit 2 and control are single
Member.Heat pump unit 1 includes compressor 11, four-way valve 12, condenser 13, expansion valve 15 and the evaporator 16 connected with pipeline.Newly
Wind unit 2 includes for indoor discharge exhaust gas and the first heat exchanger 21 of outdoor introducing fresh air heat exchange, the second heat exchange
Device 22 and third heat exchanger 23.It is set between condenser 13 and expansion valve 15 there are one the 4th heat exchanger 14, condenser 13 flows
The cryogenic fluid gone out is divided into two branches, enters expansion valve 15 through the 4th heat exchanger 14 all the way, another way is through solenoid valve 17, swollen
Swollen valve 18 enters the 4th heat exchanger 14, subsequently into the third heat exchanger of fresh air unit, absorbs the waste heat in discharge exhaust gas
It is back to the steam inlet 19 of compressor 11 afterwards.The heat that condenser 13 discharges after current divider 3 via two-way is divided into, all the way
It exchanges heat into second heat exchanger 22 and the fresh air of outdoor introducing, another way is as heating output end 4.Evaporator 16 is equipped with
Fan 10, second heat exchanger and third heat exchanger are equipped with fan, and compressor 11 uses turbocompressor.
In a heating mode, by 11 compressed high pressure-temperature liquid refrigerant of compressor via becoming after condenser 13
High normal pressure and temperature liquid.Then it is divided into two parts：A part enters evaporator 16 after the 4th heat exchanger 14 and expansion valve 15,
It absorbs the heat in outdoor air and returns and enter compressor 11 through four-way valve 12.Another way enters through solenoid valve 17, expansion valve 18
4th heat exchanger, 14 further cooling refrigerant, more than in the absorption of third heat exchanger 23 exhaust gas in fresh air unit
The steam inlet 19 that compressor is back to after heat enters compression cycle.The heat discharged via condenser 13 is via current divider 3
After be divided into two-way, the refrigerant after heating all the way heats the fresh sky of input of new wind turbine via heat exchanger second heat exchanger 22
Gas, another way are then exported via current divider 3 as heating output end 4.Heating output end 4 can be connect with a current divider 25, be used
It is connect in hot water 5, floor heating device and/or radiator.
In cooling mode, the refrigerant that compressor 11 exports enters evaporator 16 via four-way valve 12 and (is used as at this time cold
Condenser use) and outdoor release heat, it (is evaporation at this time then to return to condenser 13 via expansion valve 15 and the 4th heat exchanger 14
Device) absorb heat after be back to compressor 11.In refrigeration mode, solenoid valve 17 is to close, so tonifying Qi increases break function and shielded
It covers.The fresh air of refrigerant cooling input realizes air conditioning function, while heating the closing of output end 4.When hot water heating starting, heat pump into
Enter heating mode, solenoid valve 17 is closed.Flow divider 3 closes the refrigerating circuit of new wind turbine, and opens heat hot water water tank.It is defrosting
Pattern is shown in that Fig. 2, the refrigerant that compressor 11 exports enter evaporator 16 (being at this time condenser use) and outdoor via four-way valve 12
Heat is discharged, after then returning to condenser 13 (being at this time evaporator) absorption heat via expansion valve 15 and the 4th heat exchanger 14
It is back to compressor 11.In defrosting mode, solenoid valve 17 is to close, so tonifying Qi increases break function and shielded.Current divider 3 simultaneously
It is placed in heating output end, the heat for absorbing hot water eliminates the frost of evaporator 16, and cooling system circuit is closed.
Further, output unit is isolated and connects relay as shown in fig. 6, switching value is arranged outside the central controller unit
Device, the working condition for controlling compressor 11.
Further, pressure inverting unit is set outside the central controller unit and connects pressure acquisition unit, for adopting
Collect the working condition of compressor 11.
As the preferred of the utility model, keyboard is set outside the central controller unit, keyboard passes through keyboard scan list
Member is connected to central controller unit, for setting water tank 5；
Liquid crystal display is set outside the central controller unit, working condition, interior for showing compressor 11
Outdoor temperature, water tank temperature, return water temperature.
Wherein indoor temperature transmitter, outdoor temperature sensor, water tank temperature sensor, return water temperature sensor are all made of
PT100 temperature sensors, and central processor unit is connected to by can buses, it is respectively measured for timing acquiring heat pump unit
The temperature value of point；The external 4-20mA or 0-5V standard signals provided by pressure transmitter of multichannel pressure acquisition unit, it is fixed to be used for
When acquisition, the high-pressure value of compressor and low pressure value；The switching value of the external heat pump unit of switching value isolation input unit
Signal is used for the on-off model that acquisition in real time reflects each critical component operating status of heat pump unit；Switching value isolation output is single
Member controls the electric components such as compressor, solenoid valve, wind turbine, water pump by relay；Key input unit (including keyboard and key
Disk scanning element) and man-machine interface of the liquid crystal display as controller；Power supply unit is filtered by the alternating current of 220V
Afterwards, after by transformer pressure-reducing and rectification, filtering and steady pressure treatment, the other unit power supplies of device in order to control.
As shown in fig. 7, control system for heat pump provided by the utility model, according to the control point of heat pump unit controller and
The temperature and pressure value detected is needed, and is combined with the strategy of temperature curve control and develops completely new automatic control mode, when
When system is opened, occur the selective various functions of main interface first.Various functions are roughly divided into parameter setting, and (such as system is set
Fixed, system time setting, password setting etc.) and two major class of parameter query (such as operational situation).There is phase again inside each major class
The more careful function setting or parameter setting answered.Password will be inputted by entering each level one choice in main interface, only
Password correctly can be just configured into next stage menu.There are one individual password settings to select in main interface simultaneously
, it is used for setting code or change password.Into after setting interface, the respective option is selected by upper lower key, after determining just
The parameter of various pieces when can carry out parameter setting or check system work.
For those of ordinary skill in the art, without departing from the concept of the present invention, may be used also
To make several modifications and improvements, these belong to the scope of protection of the utility model.
Claims (3)
1. a kind of control system for heat pump based on temperature curve, which is characterized in that including：Heat pump, heat pump control device；
The heat pump, including：Condenser (13), evaporator (16), compressor (11)；The condenser (13), evaporator (16),
Compressor (11) is connected by refrigerant tubing and is formed into a loop, and the condenser (13) connects water tank (5) outside；The evaporator
(16) it is set in outdoor unit (7), the condenser (13) and compressor (11), water tank (5) are set in indoor unit (6)；
The heat pump control device, including：Indoor temperature transmitter, outdoor temperature sensor, water tank temperature sensor, return water temperature
Spend sensor (25), central controller unit；The indoor temperature transmitter is set on indoor unit (6), the outdoor temperature
Sensor is set on outdoor unit (7), and the return water temperature sensor (25) is set between water tank (5) and condenser (13)
In connecting pipe, the water tank temperature sensor is set in water tank (5)；The indoor temperature transmitter, outdoor temperature sensing
Device, water tank temperature sensor, return water temperature sensor (25) are connected to central controller unit；
Switching value is arranged outside the central controller unit output unit is isolated and connects relay, for controlling compressor (11)
Working condition.
2. a kind of control system for heat pump based on temperature curve according to claim 1, which is characterized in that the center control
Pressure inverting unit is set outside device unit processed and connects pressure acquisition unit, the working condition for acquiring compressor (11).
3. a kind of control system for heat pump based on temperature curve according to claim 1, which is characterized in that the center control
Keyboard is set outside device unit processed, keyboard is connected to central controller unit by keyboard scan unit, for setting water tank (5)；
Liquid crystal display is set outside the central controller unit, for the working condition for showing compressor (11), indoor room
Outer temperature, water tank temperature, return water temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670167.4U CN207907445U (en) | 2017-12-05 | 2017-12-05 | A kind of control system for heat pump based on temperature curve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670167.4U CN207907445U (en) | 2017-12-05 | 2017-12-05 | A kind of control system for heat pump based on temperature curve |
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| Publication Number | Publication Date |
|---|---|
| CN207907445U true CN207907445U (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721670167.4U Expired - Fee Related CN207907445U (en) | 2017-12-05 | 2017-12-05 | A kind of control system for heat pump based on temperature curve |
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| CN (1) | CN207907445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816782A (en) * | 2017-12-05 | 2018-03-20 | 徐州海里奥特环境科技有限公司 | A kind of heat pump and control device and control method based on temperature curve |
| CN115451620A (en) * | 2022-09-26 | 2022-12-09 | 宁波奥克斯电气股份有限公司 | Control method of heat pump system and heat pump system |
-
2017
- 2017-12-05 CN CN201721670167.4U patent/CN207907445U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816782A (en) * | 2017-12-05 | 2018-03-20 | 徐州海里奥特环境科技有限公司 | A kind of heat pump and control device and control method based on temperature curve |
| CN115451620A (en) * | 2022-09-26 | 2022-12-09 | 宁波奥克斯电气股份有限公司 | Control method of heat pump system and heat pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20191205 |