CN107166741A - Source pump and its anti-freeze control method - Google Patents
Source pump and its anti-freeze control method Download PDFInfo
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- CN107166741A CN107166741A CN201710465374.4A CN201710465374A CN107166741A CN 107166741 A CN107166741 A CN 107166741A CN 201710465374 A CN201710465374 A CN 201710465374A CN 107166741 A CN107166741 A CN 107166741A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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Abstract
The invention discloses a kind of source pump and its anti-freeze control method, source pump includes N number of module machine in parallel, and method comprises the following steps：Outdoor environment temperature is detected, and detects the water inlet temperature and outlet temperature of each module machine；When k-th of module machine is in holding state and judges that k-th of module machine needs anti-freeze to protect according to the intake-outlet temperature of outdoor environment temperature and k-th of module machine; the corresponding water pump of k-th of module machine and control valve is controlled to open; and after the first preset time, judge whether the intake-outlet temperature of k-th of module machine meets the first preparatory condition；If not meeting the first preparatory condition; then when k-th of module machine is in state good for use; the corresponding water pump of each module machine and control valve is controlled to be in opening; and k-th of module machine of startup is heated; so as to reduce because anti-freeze protect need and caused by unnecessary start and stop, and reduce the probability that some module machine hinders and is damaged by frost for some reason.
Description
Technical field
The present invention relates to heat pump water-heating machine technical field, the anti-freeze control method of more particularly to a kind of source pump and
A kind of source pump.
Background technology
For multiple module machines source pump in parallel, because load change may only have part of module when running in the winter time
Machine needs to start, and the module machine in stopped status has freezing risk when standby at low temperature, therefore source pump needs to carry out
Anti-freeze Preservation tactics.
Existing anti-freeze Preservation tactics are general by detecting turnover coolant-temperature gage, start when water temperature is less than certain value current
Module machine carries out anti-freeze protection, and this anti-freeze Preservation tactics are protected for each module machine itself, for being
The module machine of other in system does not shield.During using the anti-freeze Preservation tactics, system is on the one hand likely to result in unnecessary
Start and stop, on the other hand when have in parallel module machine module machine failure when, the module machine of failure can not be obtained effectively
, there is freezing risk in protection.
The content of the invention
It is contemplated that at least solving one of technical problem in above-mentioned technology to a certain extent.Therefore, the present invention
One purpose is the anti-freeze control method for proposing a kind of source pump, can effectively solve the problem that anti-freeze when multimode machine is in parallel
The problem of, reduce because anti-freeze protect need and caused by unnecessary start and stop, and reduce some module machine and hinder for some reason and be frozen
Bad probability.
It is another object of the present invention to propose a kind of source pump.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of anti-freeze control method of source pump,
The source pump includes N number of module machine in parallel, and the water inlet of each module machine is provided with water pump, the water outlet of each module machine
Mouth is provided with control valve, wherein, N is the integer more than or equal to 2, and the anti-freeze control method comprises the following steps：Sensing chamber
External environment temperature, and detect the water inlet temperature and outlet temperature of each module machine；When k-th of module machine in N number of module machine
In holding state and according to the water inlet temperature and outlet temperature of the outdoor environment temperature and k-th of module machine
When judging k-th of module machine and needing the anti-freeze to protect, the corresponding water pump of k-th of module machine and control valve is controlled to open
Open, and after the first preset time, judge whether the water inlet temperature and outlet temperature of k-th of module machine meet first
Preparatory condition, wherein, k=1,2,3 ..., N；If the water inlet temperature and outlet temperature of k-th of module machine are not met
First preparatory condition, then when k-th of module machine is in state good for use, control the corresponding water pump of each module machine and
Control valve is in opening, and starts k-th of module machine and heated.
According to one embodiment of present invention, when the outdoor environment temperature is less than the first preset temperature, if described
The water inlet temperature of k-th of module machine be less than the second preset temperature with the smaller value in outlet temperature and continue second it is default when
Between, then judge that k-th of module machine needs anti-freeze to protect.
According to one embodiment of present invention, when in the water inlet temperature and outlet temperature of k-th of module machine
When smaller value is more than three preset temperatures, judge that the water inlet temperature and outlet temperature of k-th of module machine meet first
Preparatory condition, and control the corresponding water pump of k-th of module machine and control valve to close.
According to one embodiment of present invention, after startup k-th of module machine is heated, N number of mould is also judged
Whether the water inlet temperature of block machine is more than the 4th preset temperature, and entering in N number of module machine with the smaller value in outlet temperature
When mouth of a river temperature is more than four preset temperatures with the smaller value in outlet temperature, the corresponding water pump of each module machine and control are controlled
Valve processed is closed, and controls k-th of module office to close.
According to one embodiment of present invention, when k-th of module machine is in malfunction, wherein, if k ≠ N,
Then when+1 module machine of kth is in state good for use, the corresponding water pump of each module machine and control valve is controlled to be in out
State is opened, and starts described+1 module machine of kth and is heated；If k=N, shape good for use is in the 1st module machine
During state, the corresponding water pump of each module machine and control valve is controlled to be in opening, and start the 1st module machine progress
Heat.
According to the specific example of the present invention, the first preset temperature is 2~8 DEG C, and second preset temperature is 5~10
DEG C, the 3rd preset temperature is 12~18 DEG C, and the 4th preset temperature is 15~25 DEG C, and first preset time is 1
~5 minutes, second preset time was 5~20 seconds.
The embodiment of the present invention also proposed a kind of computer-readable recording medium, and it, which has, is stored in instruction therein, when
When the instruction is performed, the source pump performs above-mentioned anti-freeze control method.
The anti-freeze control method of source pump according to embodiments of the present invention, by detecting outdoor environment temperature and inspection
Survey the water inlet temperature and outlet temperature of each module machine judge in N number of module machine in holding state module machine whether
Need to carry out anti-freeze protection, and when judging that k-th of module machine needs anti-freeze to protect, k-th of module machine of control is corresponding
Water pump and control valve are opened, to carry out anti-freeze protection to k-th of module machine, then by judging the after the first preset time
Whether the water inlet temperature and outlet temperature of k module machine meet the first preparatory condition to judge whether k-th of module machine is prevented
Freeze protection is completed, and when k-th of module machine also needs to anti-freeze protection, and in k-th of module machine in good for use
Control the corresponding water pump of each module machine and control valve to be in opening during state, and start k-th of module machine system
Heat, it is ensured that k-th of module machine realizes the protection of effective anti-freeze, and can effectively reduce because anti-freeze protect need and caused by
The unnecessary start and stop of unit, when efficiently solving the parallel connection of multimode machine the problem of anti-freeze, moreover it is possible to reduce some module machine
The probability for hindering for some reason and being damaged by frost, it is ensured that source pump safe and reliable operation.
To reach above-mentioned purpose, a kind of source pump that another aspect of the present invention embodiment is proposed, including：It is N number of in parallel
Module machine, the water inlet of each module machine is provided with water pump, and the delivery port of each module machine is provided with control valve, wherein, N is big
In the integer equal to 2；First temperature detecting module, for detecting outdoor environment temperature；Second temperature detection module, for detecting
The water inlet temperature and outlet temperature of each module machine；Control module, in N number of module machine k-th of module machine be in
Holding state and according to the water inlet temperature and outlet temperature of the outdoor environment temperature and k-th of module machine judge
When k-th of module machine needs the anti-freeze to protect, the corresponding water pump of k-th of module machine and control valve is controlled to open, and
Judge whether the water inlet temperature and outlet temperature of k-th of module machine meet the first default bar after the first preset time
Part, and in the water inlet temperature and outlet temperature of k-th of module machine the first preparatory condition is not met and described k-th
When module machine is in state good for use, the corresponding water pump of each module machine and control valve is controlled to be in opening, and open
Move k-th of module machine heated, wherein, k=1,2,3 ..., N.
According to one embodiment of present invention, when the outdoor environment temperature is less than the first preset temperature, if described
The water inlet temperature of k-th of module machine be less than the second preset temperature with the smaller value in outlet temperature and continue second it is default when
Between, the control module then judges that k-th of module machine needs anti-freeze to protect.
According to one embodiment of present invention, when in the water inlet temperature and outlet temperature of k-th of module machine
When smaller value is more than three preset temperatures, the control module judges the water inlet temperature and delivery port of k-th of module machine
Temperature meets the first preparatory condition, and controls the corresponding water pump of k-th of module machine and control valve to close.
According to one embodiment of present invention, after startup k-th of module machine is heated, the control module
It is additionally operable to judge whether the water inlet temperature of N number of module machine is more than the 4th preset temperature with the smaller value in outlet temperature, and
When the water inlet temperature of N number of module machine is more than four preset temperatures with the smaller value in outlet temperature, each module is controlled
The corresponding water pump of machine and control valve are closed, and control k-th of module office to close.
According to one embodiment of present invention, when k-th of module machine is in malfunction, wherein, if k ≠ N,
Then when+1 module machine of kth is in state good for use, the control module controls the corresponding water pump of each module machine and control
Valve processed is in opening, and starts described+1 module machine of kth and heated；If k=N, at the 1st module machine
When state good for use, the control module controls the corresponding water pump of each module machine and control valve to be in opening,
And start the 1st module machine and heated.
According to the specific example of the present invention, first preset temperature is 2~8 DEG C, and second preset temperature is 5
~10 DEG C, the 3rd preset temperature is 12~18 DEG C, and the 4th preset temperature is 15~25 DEG C, first preset time
For 1~5 minute, second preset time was 5~20 seconds.
Source pump according to embodiments of the present invention, detects outdoor environment temperature, and lead to by the first temperature detecting module
Cross water inlet temperature and outlet temperature that second temperature detection module detects each module machine, control module judges N number of mould
Whether the module machine in holding state needs to carry out anti-freeze protection in block machine, and is judging that it is antifreeze that k-th of module machine needs
During knot protection, the corresponding water pump of k-th of module machine of control and control valve are opened, to carry out anti-freeze protection to k-th of module machine,
Then by judging it is pre- whether the water inlet temperature and outlet temperature of k-th module machine meet first after the first preset time
If condition judges whether anti-freeze protection is completed for k-th module machine, and when k-th of module machine also needs to anti-freeze protection,
And control the corresponding water pump of each module machine and control valve to be in unlatching when k-th of module machine is in state good for use
State, and start k-th of module machine and heated, it is ensured that k-th of module machine realizes that effective anti-freeze is protected, and can be effective
Reduce because anti-freeze protect need and caused by the unnecessary start and stop of unit, efficiently solve multimode machine it is in parallel when anti-freeze
Problem, moreover it is possible to reduce the probability that some module machine hinders and is damaged by frost for some reason, it is ensured that source pump safe and reliable operation.
Brief description of the drawings
Fig. 1 is the system schematic of source pump according to an embodiment of the invention；
Fig. 2 is the flow chart of the anti-freeze control method of source pump according to embodiments of the present invention；
Fig. 3 is the flow chart of the anti-freeze control method of the source pump according to a specific embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
With reference to the accompanying drawings come describe the anti-freeze control method of source pump that proposes according to embodiments of the present invention and
Source pump.
In an embodiment of the present invention, as shown in figure 1, the source pump includes N number of module machine #1, #2, # in parallel
3rd ..., #n, the water inlet of each module machine is provided with water pump, i.e., respectively Pump_1, Pump_2, Pump_3 ..., Pump_n,
The delivery port of each module machine is provided with control valve such as electromagnetism two-port valve, and respectively SV_1, SV_2, SV_3 ..., SV_n,
Wherein, N is the integer more than or equal to 2.Also, N number of module machine #1, #2, #3 ..., #n be parallel-connected to end 100, Mei Gemo
The water inlet of block machine sets inflow temperature sensor, i.e., respectively Ti_1, Ti_2, Ti_3 ..., Ti_n, each module machine goes out
The mouth of a river set leaving water temperature sensors, i.e., respectively To_1, To_2, To_3 ..., To_n.
In one embodiment of the invention, as shown in Fig. 2 the anti-freeze control method of the source pump includes following step
Suddenly：
S1, detects outdoor environment temperature, and detect the water inlet temperature and outlet temperature of each module machine.
Specifically, in one embodiment of the invention, outdoor environment temperature T4 can be detected by outdoor temperature sensor,
Also, can be detected by the temperature sensor for the intake-outlet for being arranged on each module machine each module machine water inlet temperature and
Outlet temperature.
S2, when k-th of module machine is in holding state and according to outdoor environment temperature and k-th of mould in N number of module machine
When the water inlet temperature and outlet temperature of block machine judge that k-th of module machine needs the anti-freeze to protect, k-th of module machine pair is controlled
The water pump and control valve answered are opened, and after the first preset time, judge the water inlet temperature and delivery port temperature of k-th of module machine
Degree whether meet the first preparatory condition, wherein, k=1,2,3 ..., N.
According to one embodiment of present invention, when outdoor environment temperature T4 is less than the first preset temperature A, if k-th
The water inlet temperature of module machine is less than the second preset temperature B with the smaller value in outlet temperature and continues the second preset time
T2, then judge that k-th of module machine needs anti-freeze to protect.
Wherein, the first preset temperature A can be 2~8 DEG C, and the second preset temperature B can be 5~10 DEG C, second it is default when
Between t2 can be 5~20 seconds.
Also, in the example of the present invention, the first preset time t 1 can be 1~5 minute.
According to one embodiment of present invention, when k-th of module machine water inlet temperature with it is smaller in outlet temperature
When value is more than the 3rd preset temperature C, judge that the water inlet temperature and outlet temperature satisfaction first of k-th of module machine preset bar
Part, and control the corresponding water pump of k-th of module machine and control valve to close.
Wherein, the 3rd preset temperature C can be 12~18 DEG C.
It is understood that in an embodiment of the present invention, the first preset temperature A, the second preset temperature B, the 3rd preset
Temperature C and the first preset time t 1, the second preset time t 2 can enter rower according to the practical operation situation of source pump
It is fixed.
That is, in an embodiment of the present invention, when such as k-th module of any one module machine in N number of module machine
When machine is in holding state, can according to the water inlet temperature and outlet temperature of outdoor environment temperature and k-th module machine come
Judge whether k-th of module machine needs anti-freeze to protect, and when judging that k-th of module machine needs anti-freeze to protect, control kth
The corresponding water pump of individual module machine and control valve are opened, and anti-freeze protection is carried out to k-th of module machine to realize, and default first
After time, whether the smaller value in the water inlet temperature of k-th of module machine and outlet temperature judges k-th of module machine
Through completing anti-freeze protection, then the smaller value in the water inlet temperature and outlet temperature of k-th of module machine is more than the 3rd
During preset temperature, the water inlet temperature and outlet temperature satisfaction i.e. k-th module of the first preparatory condition of k-th of module machine are judged
Machine has completed anti-freeze protection, and the corresponding water pump of k-th of module machine of control and control valve are closed, and source pump exits anti-freeze
Control.
S3, if the water inlet temperature and outlet temperature of k-th module machine do not meet the first preparatory condition, in kth
When individual module machine is in state good for use, the corresponding water pump of each module machine and control valve is controlled to be in opening, and
Start k-th of module machine to be heated.
That is, the smaller value in the water inlet temperature and outlet temperature of k-th of module machine is less than or equal to the 3rd
During preset temperature, judge that the water inlet temperature and outlet temperature of k-th module machine do not meet i.e. k-th mould of the first preparatory condition
Block machine also needs anti-freeze to protect, and then when k-th of module machine is in state good for use, controls the water pump and control valve of whole
Open, and control k-th of module machine to be actuated for heating, realization proceeds anti-freeze control to k-th of module machine.
According to one embodiment of present invention, after k-th of module machine of startup is heated, N number of module machine is also judged
Water inlet temperature and outlet temperature in smaller value whether be more than the 4th preset temperature D, and in the water inlet of N number of module machine
When temperature is more than the 4th preset temperature D with the smaller value in outlet temperature, judge that k-th of module machine completes anti-freeze protection,
Then control the corresponding water pump of each module machine and control valve to close, and control k-th of module office to close so that source pump is moved back
Go out anti-freeze control.
Wherein, the 4th preset temperature D can be 15~25 DEG C, and the 4th preset temperature D is also according to source pump
Practical operation situation demarcated.
According to one embodiment of present invention, when k-th of module machine is in malfunction, wherein, if k ≠ N,
When+1 module machine of kth is in state good for use, the corresponding water pump of each module machine and control valve is controlled to be in opening shape
State, and start+1 module machine of kth and heated；If k=N, when the 1st module machine is in state good for use, control
Make the corresponding water pump of each module machine and control valve is in opening, and start the 1st module machine and heated.
That is, when k-th of module machine is in malfunction, next module machine can be controlled to be heated, come
Realization proceeds anti-freeze control to k-th of module machine, so that effectively reduce that some module machine hinders and be damaged by frost for some reason is general
Rate.
It should be noted that k is to recycle in a control program, i.e., when k-th of module machine is unavailable, for preventing
It is+1 module machine of kth to freeze the unit started, if+1 module machine of kth is also unavailable, starts+2 module machines of kth, such as
Fruit is still unavailable to last module machine N, then is searched for since first module machine, all units is traveled through, until finding one
Untill the module machine that platform can start.
Specifically, in one embodiment of the invention, as shown in figure 3, when k-th of module machine #k is in holding state
When, the anti-freeze control method of above-mentioned source pump comprises the following steps：
S11, judges whether outdoor environment temperature T4 is less than the first preset temperature A.If it is, performing step S12；If
It is no, return to step S11.
S12, whether the water inlet temperature and the smaller value in outlet temperature for judging k-th of module machine, which are less than second, is preset
Temperature B and continue the second preset time t 2, i.e. Min (To_k, Ti_k) ＜ B and duration t2If it is, performing step
S13；If not, return to step S12.
S13, opens the corresponding water pump P ump_k and control valve SV_k of k-th of module machine and continues the first preset time t 1.
S14, whether the water inlet temperature and the smaller value in outlet temperature for judging k-th of module machine, which are more than the 3rd, is preset
Temperature C, i.e. Min (To_k, Ti_k) ＞ CIf it is, performing step S15；If not, performing step S16.
S15, closes the corresponding water pump P ump_k and control valve SV_k of k-th of module machine, exits anti-freeze control.
S16, judges whether k-th of module machine #k can use.If it is, performing step S17；If not, performing step S20.
S17, controls the corresponding control valve of each module machine and water pump to be all turned on, that is, opens SV_1~SV_n, and start
Pump_1~Pump_n, and start k-th of module machine #k heated.
Whether S18, the water inlet temperature and the smaller value in outlet temperature for judging N number of module machine is more than the 4th default temperature
Spend D, i.e. Min (To_1~To_n, Ti_1~Ti_n) ＞ DIf it is, performing step S19；If not, return to step S18.
S19, closes SV_1~SV_n, and closes Pump_1~Pump_n, and closes k-th of module machine #k, exits anti-
Freeze control.
S20, if k ≠ N, makes k=k+1；If k=N, k=1 is made, step S16 is then back to, continuation judges kth
Whether individual module machine #k can use.Say, k is to recycle in a control program, i.e., when k-th of module machine is unavailable, use
The unit for carrying out antifreeze startup is+1 module machine of kth, if+1 module machine of kth is also unavailable, starts+2 modules of kth
Machine, if still unavailable to last module machine N, searches for since first module machine, all units is traveled through, until looking for
Untill the module that can a start machine.
In summary, in an embodiment of the present invention, all module machines of whole source pump are regard as an entirety system
System judges processing, can reduce because anti-freeze protect need and caused by the unnecessary start and stop of unit, and when k-th module machine
When needing the antifreeze but module machine in malfunction, it is also possible to use other available modules machines (can normally run) and help kth
Individual module machine is antifreeze, so as to reduce the probability that some module machine hinders and is damaged by frost for some reason.
The anti-freeze control method of source pump according to embodiments of the present invention, by detecting outdoor environment temperature and inspection
Survey the water inlet temperature and outlet temperature of each module machine judge in N number of module machine in holding state module machine whether
Need to carry out anti-freeze protection, and when judging that k-th of module machine needs anti-freeze to protect, k-th of module machine of control is corresponding
Water pump and control valve are opened, to carry out anti-freeze protection to k-th of module machine, then by judging the after the first preset time
Whether the water inlet temperature and outlet temperature of k module machine meet the first preparatory condition to judge whether k-th of module machine is prevented
Freeze protection is completed, and when k-th of module machine also needs to anti-freeze protection, and in k-th of module machine in good for use
Control the corresponding water pump of each module machine and control valve to be in opening during state, and start k-th of module machine system
Heat, it is ensured that k-th of module machine realizes the protection of effective anti-freeze, and can effectively reduce because anti-freeze protect need and caused by
The unnecessary start and stop of unit, when efficiently solving the parallel connection of multimode machine the problem of anti-freeze, in addition, when k-th of module machine needs
When the antifreeze but module machine is in malfunction, it is also possible to use other available modules machines (can normally run) and help k-th of mould
Block machine is antifreeze, so as to reduce the probability that some module machine hinders and is damaged by frost for some reason, it is ensured that source pump safe and reliable operation.
In addition, the embodiment of the present invention propose source pump include N number of module machine in parallel, the first temperature detecting module,
Second temperature detection module and control module.
Wherein, as shown in figure 1, the water inlet of each module machine is provided with water pump, i.e., respectively Pump_1, Pump_2,
Pump_3 ..., Pump_n, the delivery port of each module machine is provided with control valve such as electromagnetism two-port valve, and respectively SV_1,
SV_2, SV_3 ..., SV_n, wherein, N is integer more than or equal to 2.Also, N number of module machine #1, #2, #3 ..., #n parallel connection even
Be connected to end 100, the water inlet of each module machine sets inflow temperature sensor, i.e., respectively Ti_1, Ti_2, Ti_3 ...,
Ti_n, the delivery port of each module machine sets leaving water temperature sensors, i.e., respectively To_1, To_2, To_3 ..., To_n.
First temperature detecting module is used to detect outdoor environment temperature, for example, can detect outdoor by outdoor temperature sensor
Environment temperature T4；Second temperature detection module is used for the water inlet temperature and outlet temperature for detecting each module machine, for example may be used
The water inlet temperature and delivery port of each module machine are detected by the temperature sensor for the intake-outlet for being arranged on each module machine
Temperature.
Control module is used for k-th of module machine in N number of module machine and is in holding state and according to the outdoor environment temperature
The water inlet temperature and outlet temperature of degree and k-th of module machine judge that k-th of module machine needs anti-freeze to protect
During shield, control the corresponding water pump of k-th of module machine and control valve to open, and judge after the first preset time the kth
Whether the water inlet temperature and outlet temperature of individual module machine meet the first preparatory condition, and in k-th of module machine
When water inlet temperature and outlet temperature do not meet the first preparatory condition and k-th of module machine and are in state good for use,
Control the corresponding water pump of each module machine and control valve to be in opening, and start k-th of module machine to be heated,
Wherein, k=1,2,3 ..., N.
According to one embodiment of present invention, when the outdoor environment temperature is less than the first preset temperature, if described
The water inlet temperature of k-th of module machine be less than the second preset temperature with the smaller value in outlet temperature and continue second it is default when
Between, the control module then judges that k-th of module machine needs anti-freeze to protect.
According to one embodiment of present invention, when in the water inlet temperature and outlet temperature of k-th of module machine
When smaller value is more than three preset temperatures, the control module judges the water inlet temperature and delivery port of k-th of module machine
Temperature meets the first preparatory condition, and controls the corresponding water pump of k-th of module machine and control valve to close.
In one embodiment of the invention, after startup k-th of module machine is heated, the control module
It is additionally operable to judge whether the water inlet temperature of N number of module machine is more than the 4th preset temperature with the smaller value in outlet temperature, and
When the water inlet temperature of N number of module machine is more than four preset temperatures with the smaller value in outlet temperature, each module is controlled
The corresponding water pump of machine and control valve are closed, and control k-th of module office to close.
According to one embodiment of present invention, when k-th of module machine is in malfunction, wherein, if k ≠ N,
Then when+1 module machine of kth is in state good for use, the control module controls the corresponding water pump of each module machine and control
Valve processed is in opening, and starts described+1 module machine of kth and heated；If k=N, at the 1st module machine
When state good for use, the control module controls the corresponding water pump of each module machine and control valve to be in opening,
And start the 1st module machine and heated.
It should be noted that k is to recycle in a control program, i.e., when k-th of module machine is unavailable, for preventing
It is+1 module machine of kth to freeze the unit started, if+1 module machine of kth is also unavailable, starts+2 module machines of kth, such as
Fruit is still unavailable to last module machine N, then is searched for since first module machine, all units is traveled through, until finding one
Untill the module machine that platform can start.
Specifically, in the example of the present invention, first preset temperature is 2~8 DEG C, second preset temperature
For 5~10 DEG C, the 3rd preset temperature is 12~18 DEG C, and the 4th preset temperature is 15~25 DEG C, and described first presets
Time is 1~5 minute, and second preset time is 5~20 seconds.
Source pump according to embodiments of the present invention, detects outdoor environment temperature, and lead to by the first temperature detecting module
Cross water inlet temperature and outlet temperature that second temperature detection module detects each module machine, control module judges N number of mould
Whether the module machine in holding state needs to carry out anti-freeze protection in block machine, and is judging that it is antifreeze that k-th of module machine needs
During knot protection, the corresponding water pump of k-th of module machine of control and control valve are opened, to carry out anti-freeze protection to k-th of module machine,
Then by judging it is pre- whether the water inlet temperature and outlet temperature of k-th module machine meet first after the first preset time
If condition judges whether anti-freeze protection is completed for k-th module machine, and when k-th of module machine also needs to anti-freeze protection,
And control the corresponding water pump of each module machine and control valve to be in unlatching when k-th of module machine is in state good for use
State, and start k-th of module machine and heated, it is ensured that k-th of module machine realizes that effective anti-freeze is protected, and can be effective
Reduce because anti-freeze protect need and caused by the unnecessary start and stop of unit, efficiently solve multimode machine it is in parallel when anti-freeze
Problem, in addition, when k-th of module machine needs the antifreeze but module machine to be in malfunction, it is also possible to use other available moulds
Block machine (can normally run) helps k-th of module machine antifreeze, so as to reduce the probability that some module machine hinders and is damaged by frost for some reason, protects
Demonstrate,prove source pump safe and reliable operation.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include
Module, fragment or the portion of the code of one or more executable instructions for the step of realizing specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by shown or discussion suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In addition, in the description of the invention, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ",
" on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " clockwise ", " inverse time
The orientation or position relationship of the instruction such as pin ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or position relationship,
It is for only for ease of the description present invention and simplifies description, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (13)
1. the anti-freeze control method of a kind of source pump, it is characterised in that the source pump includes N number of module in parallel
Machine, the water inlet of each module machine is provided with water pump, and the delivery port of each module machine is provided with control valve, wherein, N be more than etc.
In 2 integer, the anti-freeze control method comprises the following steps：
Outdoor environment temperature is detected, and detects the water inlet temperature and outlet temperature of each module machine；
When k-th of module machine is in holding state and according to the outdoor environment temperature and k-th of mould in N number of module machine
When the water inlet temperature and outlet temperature of block machine judge that k-th of module machine needs the anti-freeze to protect, control described k-th
The corresponding water pump of module machine and control valve are opened, and after the first preset time, judge the water inlet temperature of k-th of module machine
Degree and outlet temperature whether meet the first preparatory condition, wherein, k=1,2,3 ..., N；
If the water inlet temperature and outlet temperature of k-th of module machine do not meet the first preparatory condition, in the kth
When individual module machine is in state good for use, the corresponding water pump of each module machine and control valve is controlled to be in opening, and
Start k-th of module machine to be heated.
2. the anti-freeze control method of source pump as claimed in claim 1, it is characterised in that when the outdoor environment temperature
During less than the first preset temperature, if the water inlet temperature of k-th of module machine is less than with the smaller value in outlet temperature
Second preset temperature and continue the second preset time, then judge that k-th of module machine needs anti-freeze to protect.
3. the anti-freeze control method of source pump as claimed in claim 1 or 2, it is characterised in that when k-th of module
When the water inlet temperature of machine is more than three preset temperatures with the smaller value in outlet temperature, k-th of module machine is judged
Water inlet temperature and outlet temperature meet the first preparatory condition, and control the corresponding water pump of k-th of module machine and control
Valve is closed.
4. the anti-freeze control method of source pump as claimed in claim 3, it is characterised in that starting k-th of mould
After block machine is heated, also judge whether the water inlet temperature of N number of module machine and the smaller value in outlet temperature are more than the
Four preset temperatures, and when the water inlet temperature of N number of module machine is more than four preset temperatures with the smaller value in outlet temperature,
Control the corresponding water pump of each module machine and control valve to close, and control k-th of module office to close.
5. the anti-freeze control method of source pump as claimed in claim 1, it is characterised in that when k-th of module machine
During in malfunction, wherein,
If k ≠ N, when+1 module machine of kth is in state good for use, the corresponding water pump of each module machine and control are controlled
Valve processed is in opening, and starts described+1 module machine of kth and heated；
If k=N, when the 1st module machine is in state good for use, the corresponding water pump of each module machine and control are controlled
Valve is in opening, and starts the 1st module machine and heated.
6. the anti-freeze control method of source pump as claimed in claim 4, it is characterised in that first preset temperature is
2~8 DEG C, second preset temperature is 5~10 DEG C, and the 3rd preset temperature is 12~18 DEG C, the 4th preset temperature
For 15~25 DEG C, first preset time is 1~5 minute, and second preset time is 5~20 seconds.
7. a kind of computer-readable recording medium, it is characterised in that with instruction therein is stored in, when the instruction is performed
When, the source pump performs the anti-freeze control method as any one of claim 1-6.
8. a kind of source pump, it is characterised in that including：
N number of module machine in parallel, the water inlet of each module machine is provided with water pump, and the delivery port of each module machine is provided with control
Valve, wherein, N is the integer more than or equal to 2；
First temperature detecting module, for detecting outdoor environment temperature；
Second temperature detection module, water inlet temperature and outlet temperature for detecting each module machine；
Control module, in N number of module machine k-th module machine be in holding state and according to the outdoor environment temperature with
And the water inlet temperature and outlet temperature of k-th of module machine are when judging that k-th of module machine needs the anti-freeze to protect,
Control the corresponding water pump of k-th of module machine and control valve to open, and judge after the first preset time k-th of module
Whether the water inlet temperature and outlet temperature of machine meet the first preparatory condition, and in the water inlet of k-th of module machine
When temperature and outlet temperature do not meet the first preparatory condition and k-th of module machine and be in state good for use, control is every
The corresponding water pump of individual module machine and control valve are in opening, and start k-th of module machine and heated, wherein, k
=1,2,3 ..., N.
9. source pump as claimed in claim 8, it is characterised in that when the outdoor environment temperature is less than the first preset temperature
When, if the water inlet temperature of k-th of module machine is less than the second preset temperature with the smaller value in outlet temperature and held
Continuous second preset time, the control module then judges that k-th of module machine needs anti-freeze to protect.
10. source pump as claimed in claim 8 or 9, it is characterised in that when the water inlet temperature of k-th of module machine
When being more than three preset temperatures with the smaller value in outlet temperature, the control module judges entering for k-th of module machine
Mouth of a river temperature and outlet temperature meet the first preparatory condition, and control the corresponding water pump of k-th of module machine and control valve
Close.
11. source pump as claimed in claim 10, it is characterised in that carry out heating it starting k-th of module machine
Afterwards, the control module is additionally operable to judge whether the water inlet temperature of N number of module machine is more than with the smaller value in outlet temperature
4th preset temperature, and smaller value in water inlet temperature and the outlet temperature of N number of module machine is more than the 4th preset temperature
When, control the corresponding water pump of each module machine and control valve to close, and control k-th of module office to close.
12. source pump as claimed in claim 8, it is characterised in that when k-th of module machine is in malfunction,
Wherein,
If k ≠ N, when+1 module machine of kth is in state good for use, the control module controls each module machine pair
The water pump and control valve answered are in opening, and start described+1 module machine of kth and heated；
If k=N, when the 1st module machine is in state good for use, the control module controls each module machine correspondence
Water pump and control valve be in opening, and start the 1st module machine and heated.
13. source pump as claimed in claim 11, it is characterised in that first preset temperature is 2~8 DEG C, described the
Two preset temperatures are 5~10 DEG C, and the 3rd preset temperature is 12~18 DEG C, and the 4th preset temperature is 15~25 DEG C, institute
It is 1~5 minute to state the first preset time, and second preset time is 5~20 seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710465374.4A CN107166741B (en) | 2017-06-19 | 2017-06-19 | Heat pump unit and its anti-freeze control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465374.4A CN107166741B (en) | 2017-06-19 | 2017-06-19 | Heat pump unit and its anti-freeze control method |
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| CN107166741A true CN107166741A (en) | 2017-09-15 |
| CN107166741B CN107166741B (en) | 2019-10-01 |
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| CN111237972A (en) * | 2020-01-19 | 2020-06-05 | 珠海格力电器股份有限公司 | Anti-freezing control method and device for generator and air conditioning unit |
| CN112594866A (en) * | 2020-12-31 | 2021-04-02 | 广东积微科技有限公司 | Anti-freezing control system and control method for multi-split hydraulic module |
| WO2021227365A1 (en) * | 2020-05-09 | 2021-11-18 | 艾默生环境优化技术(苏州)有限公司 | Anti-freezing protection method, anti-freezing protection system, and heat pump unit of water system |
| CN115076802A (en) * | 2022-07-26 | 2022-09-20 | 蘑菇物联技术（深圳）有限公司 | Cryogenic freeze protection method, computing device and medium for refrigeration system |
| CN115900134A (en) * | 2022-11-16 | 2023-04-04 | 珠海格力电器股份有限公司 | Multi-heat-pump module unit and anti-freezing control method thereof |
| CN115900134B (en) * | 2022-11-16 | 2024-06-04 | 珠海格力电器股份有限公司 | Multi-heat pump module unit and anti-freezing control method thereof |
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