CN104748393B - Heat pump and its control method - Google Patents
Heat pump and its control method Download PDFInfo
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- CN104748393B CN104748393B CN201510075251.0A CN201510075251A CN104748393B CN 104748393 B CN104748393 B CN 104748393B CN 201510075251 A CN201510075251 A CN 201510075251A CN 104748393 B CN104748393 B CN 104748393B
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Abstract
The invention provides a kind of heat pump and its control method.The control method is used to control heat pump, including：After master controller receives starting-up signal, the duty parameter of water tank is detected, and judges whether to meet the first default compressor start up condition；If meeting, the duty parameter for the total stream being connected with water tank is detected, and judges whether to meet the second default compressor start up condition；If meeting, master controller sends power-on command to all sub-controllers；Each sub-controller detects the duty parameter of branch road corresponding thereto, and judges whether to meet the 3rd default compressor start up condition；If meeting, start and the source pump corresponding to the branch road.Control method provided by the invention, secondary judgement is carried out by master controller and sub-controller, the testing result of water tank duty parameter can be modified, to eliminate water tank duty parameter detection error, avoid source pump abnormal running, reduce influencing each other between source pump simultaneously, improve the reliability of source pump.
Description
Technical field
The present invention relates to heat pump field, more specifically, is related to a kind of control method for heat pump and one
Kind heat pump.
Background technology
For commercial heat pump system, according to the difference of water consumption, it is necessary to match the source pump of different heating ability,
When hot water demand's amount is especially big, the source pump of separate unit can not provide enough heating efficiencies, it is necessary to which more source pumps are entered
Row is used in parallel, and composition parallel system could meet requirement.For the heat pump including parallel heat pump unit,
Typically now it is to be controlled using water tank temperature sensor, if water temperature reduces, all Parallel sets are opened simultaneously.Due to heat
Multiple relatively independent source pumps in pumping system be present, be difficult to ensure that in actual use all source pumps be all
Run under the same conditions, each source pump service condition is different, and with a running, presumable source pump is to pacify
In gamut, but the source pump having is in non-security range of operation, if forcing all source pumps while running, each heat
Pump assembly can influence each other so that the source pump damage of non-security operation, in turn result in other source pump damage.
In addition, for commercial heat pump system, water tank needs in-site installation, and temperature sensor is equally also required to scene in water tank
Installation, in-site installation, which certainly exists, installs risk not in place, such as：Be likely to occur the installation site of water tank temperature sensor with
Manufactory's design position is inconsistent, temperature sensor does not carry out in good heat-insulated, water tank temperature sensor from installation in water tank
Position comes off, in water tank temperature sensor be damaged (temperature detection deviation is big) situations such as, cause water tank temperature detection abnormal,
The water temperature being unable in actual response water tank, cause water tank temperature to be higher than design load, cause source pump to be run beyond design safety
Scope is run, or causes unit frequent start-stop, ultimately causes unit damage.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.
Therefore, the purpose of one aspect of the present invention is, there is provided one kind can eliminate water tank temperature sensor detection error
Bring source pump over range operation and frequent start-stop problem and avoid source pump in parallel influence each other cause occur therefore
The control method of the heat pump of barrier.
The purpose of another aspect of the present invention is, there is provided a kind of heat pump.
To achieve the above object, the embodiment of one aspect of the present invention provides a kind of control method, for controlling heat
Pumping system, the heat pump include multiple source pumps, water tank, connecting line and control device, and the connecting line includes
Multiple branch roads being connected in parallel and total stream, multiple branch road both ends being connected in parallel respectively by total stream with it is described
The water inlet of water tank is connected with delivery port, and multiple source pumps and multiple branch roads are corresponding one by one, to described
Branch road is heated, and the control device includes master controller and multiple sub-controllers, multiple sub-controllers and multiple institutes
State source pump and correspond electrical connection；The control method comprises the following steps：The master controller receives starting-up signal
Afterwards, the duty parameter of the water tank is detected, and judges whether the duty parameter of the water tank meets the first default compressor start up condition；If
The duty parameter of the water tank meets the first default compressor start up condition, then whether the duty parameter of master controller detection total stream
Meet the second default compressor start up condition, if the duty parameter of total stream meets the second default compressor start up condition, the main control
Device sends power-on command to multiple sub-controllers；Each sub-controller detects the branch road corresponding thereto
Duty parameter, and judge whether the duty parameter of the branch road meets the 3rd default compressor start up condition；If the duty parameter symbol of the branch road
The described 3rd default compressor start up condition is closed, then is started and the source pump corresponding to the branch road.
In the control method for the heat pump that the above embodiment of the present invention provides, the duty parameter of water tank is detected first, if
The duty parameter of water tank meets the first default compressor start up condition, then master controller detects the duty parameter of total stream, if total stream
Duty parameter meets the second default compressor start up condition, then master controller sends power-on command, a certain sub-control system to all sub-control systems
After device receives power-on command, source pump corresponding thereto is not to start immediately, but is first determined whether and the sub-control system
Whether the duty parameter of branch road corresponding to device meets the 3rd default compressor start up condition, now corresponding with the sub-controller if meeting
Source pump start working, otherwise, source pump does not start.
In above-described embodiment, the duty parameter for having detected water tank and total stream meets the first and second default compressor start up condition
Afterwards, also need to be judged again, then just determine whether source pump starts, the process of secondary judgement, reduce because of water tank work
Condition parameter detecting is inaccurate (such as：The installation such as temperature sensor is bad or damage caused by) caused by each heat pump machine in heat pump
Group abnormal running.
Detect in addition, each source pump is corresponding sub-controller and judge the operating mode of corresponding branch road
After parameter meets the 3rd default compressor start up condition, just started, avoid each source pump and run under non-secure states；It is and each
Sub-controller is relatively independent, is judged respectively, the work of independent control source pump, is so in non-security in source pump
The operation of source pump can be stopped during state, the source pump damage of non-security operation is avoided, cause other source pump to damage
Bad the problem of, occurs.
In summary, secondary judgement is carried out by sub-controller, can be to the detection of water tank and/or the duty parameter of total stream
As a result it is modified, to eliminate water tank duty parameter detection error, so as to avoid causing source pump abnormal running, same to time-division
The setting of controller, reduce influencing each other between the source pump being arranged in parallel, improve heat pump and source pump
Reliability, extend its service life.
In addition, the control method that the above embodiment of the present invention provides also has following additional technical feature：
According to one embodiment of present invention, the duty parameter of the branch road includes：The temperature of water, flow, stream in branch road
Speed and/or hydraulic pressure.
According to one embodiment of present invention, after the sub-controller receives the power-on command, detection is corresponding thereto
Whether the temperature value of water is less than the first preset temperature value in the branch road answered, if so, then starting and the institute corresponding to the branch road
State source pump；If it is not, then continue to detect the temperature value of water in the branch road.
According to one embodiment of present invention, when the temperature value of water is higher than the second preset temperature value in the branch road, with this
The source pump is stopped corresponding to branch road, and conveys stopping signal to the master controller.
According to one embodiment of present invention, after sending the power-on command, if the master controller receive it is all
The stopping signal that the sub-controller is sent, then control the heat pump to be stopped.
According to one embodiment of present invention, the duty parameter of the water tank includes：The temperature of water in water tank, liquid level and/
Or flow velocity；The duty parameter of total stream includes：Temperature, flow velocity and/or the hydraulic pressure of water in total stream.
According to one embodiment of present invention, the duty parameter of the described detection water tank, and judge the water tank
Whether duty parameter meets the first default compressor start up condition, specifically includes following steps：The master controller receives the start
After signal, the temperature of water in the water tank is detected, if the temperature of water is less than the 3rd preset temperature value, the master in the water tank
Controller control is arranged on the pump working on total stream, otherwise continues to detect the temperature of water in the water tank.
According to one embodiment of present invention, the duty parameter of described detection total stream, and judge total stream
Whether the duty parameter on road meets the second default compressor start up condition, specifically includes following steps：After preset duration, if total stream
The flow velocity of interior water is higher than the first preset flow value, then the master controller sends the start to multiple sub-controllers and ordered
Order, otherwise, continue to detect the flow velocity of water in the temperature value of water and total stream in the water tank.
According to one embodiment of present invention, after sending the power-on command, if the master controller receive it is described total
The flow velocity of water is less than the second preset flow value in stream, then controls the heat pump to be stopped.
According to one embodiment of present invention, after sending the power-on command, if the master controller receives the water
The temperature value of water is higher than the 4th preset temperature value in case, then controls the heat pump to be stopped.
The embodiment of another aspect of the present invention provides a kind of heat pump, including：Multiple source pumps；Water
Case, thereon with water inlet and delivery port；Connecting line, the connecting line include water inlet manifold road, outfall sewer road, multiple
Branch road, after multiple branch circuit parallel connection connections, one end is connected by the water inlet manifold road with the water inlet, and the other end passes through institute
State outfall sewer road with the delivery port to be connected, multiple source pumps and multiple branch roads are corresponding one by one, to institute
Branch road is stated to be heated；And control device, including master controller, multiple sub-controllers, water tank detection means and pipeline detection dress
Put, multiple sub-controllers are corresponded with multiple source pumps and electrically connected, and the water tank detection means is arranged on institute
State on water tank, the pipeline detection device is arranged on the connecting line, and multiple described point of controller and the water
Boxes detecting device electrically connects with the master controller, the pipeline detection device and the master controller or the sub-control system
Device electrically connects.
In addition, the heat pump that the above embodiment of the present invention provides also has following additional technical feature：
According to one embodiment of present invention, the water tank detection means includes：The temperature inspection being arranged in the water tank
Survey element；The level sensing element being arranged on the water tank；And/or be arranged on the water tank the water inlet or it is described go out
Flow rate detection element at the mouth of a river.
According to one embodiment of present invention, the pipeline detection device includes the branch road being arranged on each branch road
Detection means, the branch road detection means include detector unit, flow detecting element, flow rate detection element and/or hydraulic pressure
Detecting element, the branch road detection means are corresponded with the sub-controller and electrically connected.
According to one embodiment of present invention, the pipeline detection device also includes total stream detection means, total stream
Road detection means includes：The temperature sensor being arranged on the outfall sewer road and/or the water inlet manifold road, the temperature
Sensor electrically connects with the master controller；And/or it is arranged on the outfall sewer road and/or the water inlet manifold road
Water flow rate sensor, the water flow rate sensor electrically connect with the master controller；And/or it is arranged on the outfall sewer road
And/or the hydraulic pressure sensor on the water inlet manifold road, the hydraulic pressure sensor electrically connect with the master controller.
According to one embodiment of present invention, the outfall sewer road or the water inlet manifold road are provided with pumping installations,
The pumping installations electrically connects with the master controller.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic flow sheet according to the control method of heat pump of the present invention；
Fig. 2 is the specific control flow schematic diagram that the control method of the heat pump according to Fig. 1 is controlled；
Fig. 3 is the structural representation of the heat pump according to one embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
By using other be different from it is described here in a manner of implement, therefore, protection scope of the present invention is not by following public tool
The limitation of body embodiment.
The control method and heat pump of heat pump according to some embodiments of the invention are described with reference to the accompanying drawings.
Some embodiments of the present invention provide a kind of control method, for controlling heat pump, wherein, the heat pump system
System includes multiple source pumps, water tank, connecting line and control device, and the connecting line includes multiple branch roads being connected in parallel
With total stream, multiple branch road both ends being connected in parallel pass through water inlet of the total stream with the water tank and water outlet respectively
Mouth is connected, and multiple source pumps and multiple branch roads are corresponding one by one, the branch road are heated, the control
Device processed includes master controller and multiple sub-controllers, and multiple sub-controllers correspond electricity with multiple source pumps
Connection.Multiple source pumps are corresponding one by one with multiple branch roads, and multiple sub-controllers correspond with multiple source pumps, because
This, source pump, branch road and sub-controller are corresponding one by one.
The control method comprises the following steps：
After the master controller receives starting-up signal, the duty parameter of the water tank is detected, and judges the water tank
Whether duty parameter meets the first default compressor start up condition；
If the duty parameter of the water tank meets the first default compressor start up condition, the master controller detects total stream
Duty parameter whether meet the second default compressor start up condition；
If the duty parameter of total stream meets the second default compressor start up condition, the master controller is to multiple sub-controls
Device processed sends power-on command；
Each sub-controller detects the duty parameter of the branch road corresponding thereto, and judges the work of the branch road
Whether condition parameter meets the 3rd default compressor start up condition；
If the duty parameter of the branch road meets the described 3rd default compressor start up condition, start with it is described corresponding to the branch road
Source pump.
In the control method for the heat pump that the above embodiment of the present invention provides, the duty parameter of water tank is detected first, if
The duty parameter of water tank meets the first default compressor start up condition, then whether the duty parameter of the total stream of main controller detection it is pre- meet second
If compressor start up condition, if the duty parameter of total stream meets the second default compressor start up condition, master controller is sent out to all sub-control systems
After sending power-on command, a certain sub-controller to receive power-on command, source pump corresponding thereto is not to start immediately, and
It is whether the duty parameter for first determining whether branch road corresponding with the sub-controller meets the 3rd default compressor start up condition, if meeting, this
When the source pump corresponding with the sub-controller start working, otherwise, source pump does not start.
In above-described embodiment, the duty parameter for having detected water tank and total stream meets the first and second default compressor start up condition
Afterwards, also need to be judged again, then just determine whether source pump starts, the process of secondary judgement, reduce because of water tank work
Condition parameter detecting is inaccurate (such as：The installation such as temperature sensor is bad or damage caused by) caused by each heat pump machine in heat pump
Group abnormal running.
Detect in addition, each source pump is corresponding sub-controller and judge the operating mode of corresponding branch road
After parameter meets the 3rd default compressor start up condition, just started, avoid each source pump and run under non-secure states；It is and each
Sub-controller is relatively independent, is judged respectively, the work of independent control source pump, is so in non-security in source pump
The operation of source pump can be stopped during state, the source pump damage of non-security operation is avoided, cause other source pump to damage
Bad the problem of, occurs.
In summary, secondary judgement is carried out by sub-controller, can be to the detection of water tank and/or the duty parameter of total stream
As a result it is modified, to eliminate water tank duty parameter detection error, so as to avoid causing source pump abnormal running, same to time-division
The setting of controller, reduce influencing each other between the source pump being arranged in parallel, improve heat pump and source pump
Reliability, extend its service life.
In some embodiments of the invention, the duty parameter of the water tank includes：The temperature of water in water tank, liquid level and/
Or flow velocity；The duty parameter of total stream includes：Temperature, flow velocity and/or the hydraulic pressure of water in total stream.
By the detection of the temperature of water in water tank, judge whether the water in water tank needs to be heated, and then determine whether
Need to send power-on command；By detecting the liquid level of water in water tank, judge whether there is water in water tank, to avoid dry combustion method phenomenon；
By detecting the temperature of water in total stream, to judge the water temperature authenticity in water tank, it is ensured that water temperature is not over default temperature
Scope；By detecting the flow velocity and/or hydraulic pressure of water in total stream, to ensure when source pump is run, water is in flowing shape
State, i.e. connecting line are without blocking, and pump working is normal, so that follow-up source pump heats to water.
In a specific example, the duty parameter of the described detection water tank, and judge the duty parameter of the water tank
Whether meet the first default compressor start up condition, specifically include following steps：
After the master controller receives the starting-up signal, the temperature of water in the water tank is detected, if in the water tank
The temperature of water is less than the 3rd preset temperature value, then the master controller detects the duty parameter of total stream.
In the examples described above, heat pump start after, first detect water tank in water temperature, if in water tank water temperature
Higher than the 4th preset temperature value, then show that now water temperature is higher, without being heated, then proceed to detect the temperature of water；Work as water
The temperature of water is less than the 3rd preset temperature value in case, then shows that now water temperature is relatively low, it is necessary to be heated, then master controller is examined
Survey after the duty parameter of total stream after meeting the second default compressor start up condition, power-on command is sent to all sub-controllers, treat point
After controller judges, you can start source pump, water is heated.
In another specific example, the duty parameter of the described detection water tank and total stream, and described in judgement
Whether the duty parameter of water tank and total stream meets the first default compressor start up condition and the second default compressor start up condition, specifically includes
Following steps：
The temperature of water in the water tank is detected, it is described if the temperature of water is less than the 3rd preset temperature value in the water tank
Main controller controls pump working, otherwise continue to detect the temperature of water in the water tank；
After preset duration, if the flow velocity of water is higher than the first preset flow value in total stream, the master controller to
Multiple sub-controllers send the power-on command, otherwise, continue to detect the temperature value of water in the water tank.
In the examples described above, heat pump start after, first detect water tank in water temperature, if in water tank water temperature
Higher than the 4th preset temperature value, then show that now water temperature is higher, without being heated, then proceed to detect the temperature of water；Work as water
The temperature of water is less than the 3rd preset temperature value in case, then shows that now water temperature is relatively low, it is necessary to heated, then, master controller
Control is arranged on starting mode of pump on total stream of connecting line, starting mode of pump for a period of time after, if in total stream water flow velocity
Reach the first preset flow value, then show connecting line it is unimpeded, without blocking, while also indicate that pump working is normal, fault-free, this
When master controller send power-on command to all sub-controller, otherwise master controller does not send power-on command.
Further, after sending the power-on command, if the flow velocity that the master controller receives water in total stream is low
In the second preset flow value, then the heat pump is controlled to be stopped.
When the flow velocity of water is less than the second preset flow value in total stream, show that connecting line is not smooth or pump working is different
Often, now main controller controls heat pump is stopped, i.e. all modules of heat pump are stopped.
In other embodiments of the present invention, the duty parameter of the branch road includes：The temperature of water in branch road, flow,
Flow velocity and/or hydraulic pressure.The temperature of water, flow, flow velocity and/or hydraulic pressure in detection branch, to ensure the clear and coherent smooth, nothing of current in branch road
Blockage problem occurs.
In a specific example, after the sub-controller receives the power-on command, corresponding thereto described is detected
Whether the temperature value of water is less than the first preset temperature value in branch road, if so, then starting and the heat pump machine corresponding to the branch road
Group；If it is not, then continue to detect the temperature value of water in the branch road.
In the examples described above, after all sub-controllers receive power-on command, each sub-controller detects respectively
Whether corresponding branch road meets compressor start up condition, then control source pump corresponding with the branch road startup whether.If branch road
The temperature value of the water of interior flowing is less than the first preset temperature value, shows that the branch road is working properly, then sub-controller just control with
The corresponding source pump work of the branch road, is heated to the water for flowing through the branch road；Otherwise, the branch road operation irregularity is shown,
Source pump does not work.
Further, when the temperature value of water is higher than the second preset temperature value in the branch road, the heat corresponding with the branch road
Pump assembly is stopped, and conveys stopping signal to the master controller.
When the temperature of the water flowed in branch road is too high, when being such as higher than the second preset temperature value, source pump also stops work
Make, otherwise, it is too high to may result in the temperature of source pump, causes source pump operation irregularity or service life to shorten, or
Person causes source pump to reduce the efficiency of heating surface of water, causes energy waste.
Further, after sending the power-on command, if the master controller receives all sub-controller hairs
The stopping signal sent, then control the heat pump to be stopped, that is, controls all parts to be stopped.
In addition, after sending the power-on command, if the temperature value that the master controller receives water in the water tank is higher than
4th preset temperature value, then the heat pump is controlled to be stopped.
Power-on command is sent, source pump heats to water, when the temperature of water in water tank rises to the 4th preset temperature
During value, show that the temperature of now water in water tank has reached requirement, then, main controller controls heat pump is stopped, that is, controls
All parts are made to be stopped.
The embodiment of another aspect of the present invention provides a kind of heat pump, including：Multiple source pumps, water tank 4, connection
Pipeline and control device.
Wherein, there is water inlet and delivery port on the water tank 4；
The connecting line includes water inlet manifold road, outfall sewer road, multiple branch roads, after multiple branch circuit parallel connection connections, one
End is connected by the water inlet manifold road with the water inlet, and the other end passes through the outfall sewer road and the delivery port phase
Connection, and multiple source pumps and multiple branch roads are corresponding one by one, and the branch road is heated；
The control device includes master controller 1, multiple sub-controllers, water tank detection means and pipeline detection device, more
The individual sub-controller is corresponded with multiple source pumps and electrically connected, and the water tank detection means is arranged on the water tank
On, the pipeline detection device is arranged on the connecting line, and multiple described point of controllers and water tank detection
Device electrically connects with the master controller 1, the pipeline detection device and the master controller or sub-controller electricity
Connection.
Further, the pipeline detection device includes the branch road detection means being arranged on each branch road, Duo Gesuo
Branch road detection means is stated to electrically connect with multiple sub-controllers one-to-one corresponding.
In the above-described embodiments, multiple source pumps are corresponding one by one with multiple branch roads, multiple sub-controllers and multiple heat
Pump assembly corresponds, and multiple branch road detection means and multiple sub-controllers correspond, therefore, source pump, branch road and point
Controller, branch road detection means are corresponding one by one.
After master controller receives starting-up signal, the duty parameter of water tank detection means detection water tank is controlled first, if
The duty parameter of water tank meets the first default compressor start up condition, then master controller detects the duty parameter of total stream, if total stream
Duty parameter meets the second default compressor start up condition, then master controller sends power-on command, a certain sub-control system to all sub-control systems
After device receives power-on command, the duty parameter that the control branch road detection means corresponding with the sub-controller detects the branch road is
No to meet the 3rd default compressor start up condition, if meeting, source pump now corresponding with the sub-controller is started working, otherwise,
Source pump does not start.
Double check is carried out by water tank detection means and branch road detection means, carried out by master controller and sub-controller
After dual judgement, just determine whether source pump starts, the process judged determined by branch road detection means and sub-controller can
The testing result of water tank detection means is modified, to eliminate the detection error of water tank detection means (such as：Water tank detection means
Caused by bad or damage is installed), so as to avoid causing source pump abnormal running, deterministic process, is greatly reduced twice
The probability that judgement or detection error occur, effectively prevent the generation of the non-security running situation of source pump, improves heat pump system
The reliability of system and source pump, extends its service life；The setting of each sub-controller and each branch road detection means simultaneously, reduce
Influencing each other between the source pump being arranged in parallel, ensure that the normal work of each source pump, while extend its use
Life-span.
In some embodiments of the invention, the water tank detection means includes：
The detector unit being arranged in the water tank；
The level sensing element being arranged on the water tank；And/or
It is arranged on the water inlet of the water tank or the flow rate detection element of the water outlet.
The temperature of water in water tank is detected by detector unit, judges whether the water in water tank needs to be heated, enters
And determine whether master controller needs to send power-on command；By the liquid level of water in level sensing element testing water tank, water is judged
Whether there is water in case, in order to avoid now master controller sends power-on command, cause the generation of dry combustion method phenomenon；Pass through flow rate detection element
The flow velocity of water in water tank is detected, to ensure that, when source pump is run, water is to be in flow regime, so that source pump is entered to water
Row circulating-heating.
In other embodiments of the present invention, the branch road detection means includes detector unit, flow detection member
Part, flow rate detection element and/or hydraulic pressure detecting element, pass through the temperature of water, flow, flow velocity in branch road detection means detection branch
And/or hydraulic pressure, to ensure that current are clear and coherent freely in branch road, occur without blockage problem.
Further, the pipeline detection device, which removes, includes branch road detection means, in addition to total stream detection means, described total
Stream detection means includes the water flow rate sensor being arranged on the outfall sewer road and/or the water inlet manifold road, described
Water flow rate sensor electrically connects with the master controller.
The flow velocity of water in outfall sewer road and/or water inlet manifold road is detected by water flow rate sensor, it is ensured that connecting line
It is happy, without blocking, while pump working is normal.
It should be noted that in outfall sewer road, water inlet manifold road, each branch road and water tank there is relation in the flow velocity of water, can
Other flow velocitys are obtained by the flow velocity of one of them indirectly, therefore, in order to save cost, simplify the structure of heat pump, can
By the water flow rate sensor for being arranged on water tank import and export, the water flow rate sensor being arranged on each branch road and to be arranged on water outlet total
Some in water flow rate sensor on pipeline, water inlet manifold road save.In example as shown in Figure 3, only on outfall sewer road
It is upper that a water flow switch 5 (one kind of water flow rate sensor, the flow velocity available for detection water) is set.
Certainly, total stream detection means can also include being arranged on the outfall sewer road and/or the water inlet is total
Hydraulic pressure sensor on pipeline, the hydraulic pressure sensor electrically connect with the master controller.It can equally be obtained by hydraulic pressure sensor
Know whether connecting line is smooth, whether normal without blocking, and pump working, specifically, if hydraulic pressure is excessive, show water pump just
Often, but pipeline has blocking, if hydraulic pressure is too small, shows pump working exception.
In some embodiments of the invention, the outfall sewer road or the water inlet manifold road are provided with pumping installations,
The pumping installations electrically connects with the master controller.Water pump can promote water to be circulated between water tank and connecting line, with
Just after the heating of source pump water, hot water can enter in water tank, for using.
With reference to Fig. 1 to Fig. 3, heat pump provided in an embodiment of the present invention and its control method are further illustrated.
Heat pump provided by the invention, as shown in figure 3, the mainly water tank detection means comprising water tank 4 and thereon, master control
The parts such as device 1 processed, sub-controller, pipeline detection device, Pipe Control Unit and the source pump that is arranged in parallel, Fig. 3
In, heat pump includes two source pumps, respectively source pump 2 and source pump 3.Wherein water tank detection means, pipeline inspection
Survey device, Pipe Control Unit, source pump, sub-controller all electrically connects that (in Fig. 3, dotted line represents to electrically connect with master controller
Relation), and a sub-controller is provided with a source pump, the judgement for the start and stop of this source pump；Master controller 1 is used for
Switching on and shutting down order outside receiving；Water tank detection means is used for the duty parameter for detecting water tank, it may include water temperature, water level, current
The one or more in parameter such as amount, in the heat pump shown in Fig. 3, water tank detection means includes being installed on inside water tank 4
Temperature sensor 7 (one kind of detector unit)；Pipe Control Unit may include water pump, pipeline shut-off kind valve body, water-carrying capacity
The one or more in the parts such as kind valve body are adjusted, specifically, in the heat pump shown in Fig. 3, Pipe Control Unit includes water
Pump 6；Pipeline detection device is used for signal piping systematic parameter, it may include one kind or several in the parameter such as water temperature, water-carrying capacity, hydraulic pressure
Kind, specifically, in the heat pump shown in Fig. 3, pipeline detection device includes the temperature sensor being arranged in source pump 2
20th, the temperature sensor 30 being arranged in source pump 3 and the water flow switch 5 being arranged on the total stream of water outlet.
It should be noted that master controller 1 can be a part for single module or source pump；Pipeline
Detection means can be mounted to outside source pump, can also be installed on inside source pump；The duty parameter of water tank can be with
By detecting the gain of parameter in water tank, the gain of parameter of detection water end (W.E.) can also be passed through.
Be controlled using the control method of heat pump provided by the invention, one particular flow sheet as shown in figure 1,
Wherein, preset compressor start up condition one can be the temperature correlated condition of water in water tank, water level correlated condition in water tank, current in water tank
Measure correlated condition or the combination of this several condition；Default compressor start up condition two can enter on the total stream of water or the total stream of water outlet
The combination of water temperature correlated condition, hydraulic pressure correlated condition, water-carrying capacity correlated condition or this several condition；Default compressor start up condition three can
To be the temperature correlated condition of water in each branch road, hydraulic pressure correlated condition, water-carrying capacity correlated condition or the combination of this several condition；
Wherein Pipe Control Unit is opened the preset time maintained and set by specific system matches.
Wherein, preset halt condition one can be the temperature correlated condition of water in water tank, water level correlated condition, water in water tank
The combination of water-carrying capacity correlated condition or this several condition in case；Default halt condition two can be total into the total stream of water or water outlet
Each source pump running status of water temperature correlated condition, hydraulic pressure correlated condition, water-carrying capacity correlated condition on stream or this is several
The combination of condition；Default halt condition three can be that the temperature correlated condition, hydraulic pressure correlated condition, water-carrying capacity of water in branch road are related
The combination of condition or this several condition.
In one embodiment,
Default compressor start up condition one：T7 (temperature of water in the water tank that temperature sensor 7 detects) 50 DEG C of ＜；
Default compressor start up condition two：Water flow switch closes；
Default compressor start up condition three：T20 (temperature with water in 2 corresponding branch road of source pump that temperature sensor 20 detects)
51 DEG C of T20 ＜, T30 (temperature with water in 3 corresponding branch road of source pump that temperature sensor 30 detects) 51 DEG C of ＜；
The preset time that Pipe Control Unit maintains after opening：60 seconds；
Default halt condition one：T7≥55℃；
Default halt condition two：Water flow switch is disconnected or source pump 2 and 3 is all shut down；
Default halt condition three：T20 >=60 DEG C, T30 >=60 DEG C；
Now, the outflow schematic diagram of the control method of heat pump is as shown in Figure 2.
In summary, the control method of heat pump and heat pump provided in an embodiment of the present invention, have following beneficial
Effect：
1) it is anon-normal to reduce the source pump caused by water tank detection means (such as temperature sensor) installation is bad or damages
Often operation：
Carry branch road detection means in each source pump, and the branch road detection means just installed in plant produced it is intact,
And enough protections have been carried out, and substantially will not be by external environment influence, for water tank detection means, confidence level is more
It is high.The branch road detection means that source pump by forming parallel system carries carries out second and judged, to water tank detection means
Testing result be modified, to eliminate the deviation of water tank detection means, so as to avoid causing source pump abnormal running, carry
The reliability of high source pump work, increases the service life.
2) influencing each other between reduction source pump in parallel：
After judging by master controller and send power-on command, the sub-controller inside parallel system in each source pump
Source pump entry condition judgement is carried out, when source pump is not suitable for opening, can be not turned on or out of service in time, effectively
Avoid the generation of source pump over range running situation, improve source pump reliability, which obviate between source pump mutually
Influence.
In the description of the invention, term " first ", " second " are only used for the purpose of description, and it is not intended that instruction or
Imply relative importance.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the present invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (14)
1. a kind of control method of heat pump, the heat pump includes multiple source pumps, water tank, connecting line and control
Device, the connecting line include multiple branch roads being connected in parallel and total stream, multiple branch road both ends being connected in parallel point
Be not connected by total stream with the water inlet and delivery port of the water tank, and multiple source pumps with it is multiple described
Branch road is corresponding one by one, and the branch road is heated, and the control device includes master controller and multiple sub-controllers, multiple
The sub-controller is corresponded with multiple source pumps and electrically connected；
Characterized in that, the control method comprises the following steps：
After the master controller receives starting-up signal, the duty parameter of the water tank is detected, and judges the operating mode of the water tank
Whether parameter meets the first default compressor start up condition；
If the duty parameter of the water tank meets the described first default compressor start up condition, the master controller detects total stream
Duty parameter, and judge whether the duty parameter of total stream meets the second default compressor start up condition；
If the duty parameter of total stream meets the described second default compressor start up condition, the master controller is to multiple sub-controls
Device processed sends power-on command；
Each sub-controller detects the duty parameter of the branch road corresponding thereto, and judges the operating mode ginseng of the branch road
Whether number meets the 3rd default compressor start up condition；
If the duty parameter of the branch road meets the described 3rd default compressor start up condition, start and the heat pump corresponding to the branch road
Unit.
2. control method according to claim 1, it is characterised in that
The duty parameter of the branch road includes：The temperature of water, flow, flow velocity and/or hydraulic pressure in the branch road.
3. control method according to claim 2, it is characterised in that
After the sub-controller receives the power-on command, detect water in the branch road corresponding thereto temperature value whether
Less than the first preset temperature value, if so, then starting and the source pump corresponding to the branch road；If it is not, then continue to detect institute
State the temperature value of water in branch road.
4. control method according to claim 3, it is characterised in that
When the temperature value of water is higher than the second preset temperature value in the branch road, the source pump corresponding with the branch road stops work
Make, and stopping signal is sent to the master controller.
5. control method according to claim 4, it is characterised in that
After sending the power-on command, if the master controller receives the shutdown letter that all sub-controllers are sent
Number, then control the heat pump to be stopped.
6. control method according to any one of claim 1 to 5, it is characterised in that
The duty parameter of the water tank includes：The temperature of water, liquid level and/or flow velocity in the water tank；
The duty parameter of total stream includes：Temperature, flow velocity and/or the hydraulic pressure of water in total stream.
7. control method according to claim 6, it is characterised in that
The duty parameter of the described detection water tank, and judge whether the duty parameter of the water tank meets the first default start
Condition, specifically include following steps：
After the master controller receives the starting-up signal, the temperature of water in the water tank is detected, if water in the water tank
Temperature is less than the 3rd preset temperature value, then the main controller controls pump working, otherwise continues to detect water in the water tank
Temperature.
8. control method according to claim 7, it is characterised in that
The duty parameter of described detection total stream, and judge whether the duty parameter of total stream meets second and preset
Compressor start up condition, specifically include following steps：
After preset duration, if the flow velocity of total stream water is higher than the first preset flow value, the master controller is to multiple institutes
State sub-controller and send the power-on command, otherwise, continue to detect the temperature of water and the always water in stream in the water tank
Flow velocity.
9. control method according to claim 8, it is characterised in that
After sending the power-on command, if the master controller receives the flow velocity of water in total stream less than the second default stream
Speed value, then control the heat pump to be stopped.
10. control method according to any one of claim 1 to 5, it is characterised in that
After sending the power-on command, if the master controller receives the temperature value of water in the water tank higher than the 4th default temperature
Angle value, then the heat pump is controlled to be stopped.
A kind of 11. heat pump, it is characterised in that including：
Multiple source pumps；
Water tank, thereon with water inlet and delivery port；
Connecting line, the connecting line include water inlet manifold road, outfall sewer road and multiple branch roads, multiple branch circuit parallel connection connections
Afterwards, one end is connected by the water inlet manifold road with the water inlet, the other end by the outfall sewer road with it is described go out
The mouth of a river is connected, and multiple source pumps and multiple branch roads are corresponding one by one, and the branch road is heated；With
Control device, including master controller, multiple sub-controllers, water tank detection means and pipeline detection device, multiple described points
Controller is corresponded with multiple source pumps and electrically connected, and the water tank detection means is arranged on the water tank, described
Pipeline detection device be arranged on the connecting line on, and multiple sub-controllers and the water tank detection means with it is described
Master controller electrically connects, and the pipeline detection device electrically connects with the master controller or the sub-controller；
The pipeline detection device includes the branch road detection means being arranged on each branch road, the branch road detection means bag
Include detector unit, flow detecting element, flow rate detection element and/or hydraulic pressure detecting element, the branch road detection means with
The sub-controller corresponds electrical connection.
12. heat pump according to claim 11, it is characterised in that the water tank detection means includes：
The detector unit being arranged in the water tank；
The level sensing element being arranged on the water tank；And/or
It is arranged on the water inlet of the water tank or the flow rate detection element of the water outlet.
13. heat pump according to claim 11, it is characterised in that
The pipeline detection device also includes total stream detection means, and total stream detection means includes：
The temperature sensor being arranged on the outfall sewer road and/or the water inlet manifold road, the temperature sensor and institute
State master controller electrical connection；And/or
The water flow rate sensor being arranged on the outfall sewer road and/or the water inlet manifold road, the water flow rate sensor
Electrically connected with the master controller；And/or
The hydraulic pressure sensor being arranged on the outfall sewer road and/or the water inlet manifold road, the hydraulic pressure sensor and institute
State master controller electrical connection.
14. the heat pump according to any one of claim 11 to 13, it is characterised in that
The outfall sewer road or the water inlet manifold road are provided with pumping installations, the pumping installations and master controller electricity
Connection.
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| CN201510075251.0A CN104748393B (en) | 2015-02-11 | 2015-02-11 | Heat pump and its control method |
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| CN201510075251.0A CN104748393B (en) | 2015-02-11 | 2015-02-11 | Heat pump and its control method |
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| CN104748393B true CN104748393B (en) | 2017-12-26 |
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| CN110940097B (en) * | 2019-12-16 | 2021-10-12 | 华帝股份有限公司 | Control method for self-adaptive starting ignition of gas water heater |
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| CN101118088A (en) * | 2007-07-31 | 2008-02-06 | 北京同方洁净技术有限公司 | Plural serial stage waterway single heating type heat pump water heating machine |
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| CN103322679A (en) * | 2013-05-23 | 2013-09-25 | 北川福德新能源股份有限公司 | High energy-saving environment-friendly air source water heater |
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| WO2005124221A1 (en) * | 2004-06-17 | 2005-12-29 | Quantum Energy Technologies Pty Limited | Heater for heating crude oil |
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|---|---|---|---|---|
| US4124177A (en) * | 1977-04-21 | 1978-11-07 | Timmerman Robert W | Heating system |
| CN101118088A (en) * | 2007-07-31 | 2008-02-06 | 北京同方洁净技术有限公司 | Plural serial stage waterway single heating type heat pump water heating machine |
| CN101280957A (en) * | 2008-04-18 | 2008-10-08 | 西安交通大学 | Parallelly-arranged double-circulating heat pump water heater |
| CN103032959A (en) * | 2011-10-08 | 2013-04-10 | 陈则韶 | Double-source heat pump water heater and double-source heat pump heat cascade hot water application all-in-one machine |
| CN103322679A (en) * | 2013-05-23 | 2013-09-25 | 北川福德新能源股份有限公司 | High energy-saving environment-friendly air source water heater |
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