CN107120842B - Supply control method for heat, for heat control device, for thermal control system and heating plant - Google Patents
Supply control method for heat, for heat control device, for thermal control system and heating plant Download PDFInfo
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- CN107120842B CN107120842B CN201710338364.4A CN201710338364A CN107120842B CN 107120842 B CN107120842 B CN 107120842B CN 201710338364 A CN201710338364 A CN 201710338364A CN 107120842 B CN107120842 B CN 107120842B
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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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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of supply control method for heat, for heat control device, for thermal control system and heating plant, be related to heat supply control field.The supply control method for heat includes: to shut down heating plant when the temperature of fluid outflow heating plant is higher than the shutdown temperature of heating plant；It can be the maximum temperature T that fluid tank provides before heating plant is shut downkWith the predetermined shutdown temperature T of fluid tankIfIt is compared, sets lesser temperature value to the shutdown temperature of fluid tank；Start heating plant according to the shutdown temperature of the fluid tank of setting.The present invention can reduce the frequent startup-shutdown of heating plant, improve the service life of heating plant.
Description
Technical field
The present invention relates to heat supply control field more particularly to a kind of supply control method for heat, for heat control device, for thermal control
System and heating plant.
Background technique
Teat pump boiler project installation level is irregular, and engineering pump capacity is less than normal sometimes, and heat pump unit, which is not achieved, to be made
With requiring, heat pump unit is often since leaving water temperature is excessively high and stoppage protection.There is water outlet overheating protection in previous heat pump unit
Control strategy is: when detecting that heat pump unit leaving water temperature is excessively high, heat pump unit carries out stoppage protection, when detecting that water temperature is full
It is switched on again after sufficient compressor start up condition, for example, starting heat pump unit work when detecting the leaving water temperature of heat pump unit lower than some value
Make.But aforesaid way be easy to cause the frequent startup-shutdown of heat pump unit, damages heat pump unit service life.
Summary of the invention
The invention solves a technical problem be to provide a kind of supply control method for heat, for heat control device, for thermal control
System processed and heating plant, can reduce the frequent startup-shutdown of heating plant, to improve the service life of heating plant.
According to an aspect of the present invention, a kind of supply control method for heat is proposed, comprising: high in the temperature of fluid outflow heating plant
When the shutdown temperature of heating plant, shut down heating plant；It can be the highest that fluid tank provides before heating plant is shut down
Temperature TkWith the predetermined shutdown temperature T of fluid tankIfIt is compared, sets lesser temperature value to the shutdown temperature of fluid tank；
Start heating plant according to the shutdown temperature of the fluid tank of setting.
Further, supply control method for heat further include: determine the temperature of fluid outflow heating plant before heating plant is shut down
Spend TOutThe temperature T of heating plant is flowed into fluidInto；According to TOutWith TIntoTemperature difference Δ T determine Tk。
Further, supply control method for heat further include: determine that heating plant can be fluid under specified fluid flow
The maximum temperature T that case providesmax, and under specified fluid flow fluid outflow and flow into heating plant temperature difference k；According to
ΔT、TmaxT is determined with kk。
Further, supply control method for heat further include: in TkMore than or equal to the minimum fluid temperature (F.T.) T of fluid tankIt is lowFeelings
Under condition, T is judgedIfWhether T is greater thank。
Further, supply control method for heat further include: in TkNo more than the minimum fluid temperature (F.T.) T of fluid tankIt is lowThe case where
Under, do not start heating plant, carries out alert process.
Further, fluid temperature (F.T.) in fluid tank is less than the shutdown temperature and predetermined temperature value of the fluid tank of setting
When temperature difference, start heating plant.
According to another aspect of the present invention, it is also proposed that a kind of for heat control device, comprising: shut down control unit, be used for
When the temperature that fluid flows out heating plant is higher than the shutdown temperature of heating plant, shut down heating plant；Temperature setting unit is used
The maximum temperature T that can be provided before shutting down heating plant for fluid tankkWith the predetermined shutdown temperature T of fluid tankIfCompared
Compared with setting lesser temperature value to the shutdown temperature of fluid tank；Starting up's unit, for stopping according to the fluid tank of setting
Machine temperature starts heating plant.
Further, this is for heat control device further include: heat supply temperature determination unit, before determining that heating plant is shut down
The temperature T of fluid outflow heating plantOutThe temperature T of heating plant is flowed into fluidInto, according to TOutWith TIntoTemperature difference Δ T determine
Tk。
Further, heat supply temperature determination unit is also used to determine that under specified fluid flow, heating plant can be fluid
The maximum temperature T that case providesmax, and under specified fluid flow fluid outflow and flow into heating plant temperature difference k, according to
ΔT、TmaxT is determined with kk。
Further, this is for heat control device further include: temperature judging unit, in TkMost more than or equal to fluid tank
Low fluid temperature (F.T.) TIt is lowIn the case where, judge TIfWhether T is greater thank。
Further, this is for heat control device further include: alert process unit, in TkIt is minimum no more than fluid tank
Fluid temperature (F.T.) TIt is lowIn the case where, carry out alert process, wherein heating plant remains shut off state.
Further, starting up's unit is less than the shutdown temperature of the fluid tank of setting for the fluid temperature (F.T.) in fluid tank
When degree and the temperature difference of predetermined temperature value, start heating plant.
According to another aspect of the present invention, it is also proposed that a kind of heating plant, including above-mentioned for heat control device.
According to another aspect of the present invention, it is also proposed that a kind of for heat control device, comprising: memory；And it is coupled to and deposits
The processor of reservoir, processor are configured as the method for example above-mentioned based on the instruction execution for being stored in memory.
According to another aspect of the present invention, it is also proposed that a kind of computer readable storage medium is stored thereon with computer journey
The step of sequence instruction, which realizes above-mentioned method when being executed by processor.
According to another aspect of the present invention, it is also proposed that a kind of for thermal control system, comprising: temperature sensor, for detecting
Fluid flows out the temperature of heating plant, fluid flows into one or more of temperature and temperature of fluid tank of heating plant；With
And controller, for executing such as above-mentioned method.
Compared with prior art, the present invention is higher than the shutdown temperature of heating plant in the temperature of fluid outflow heating plant
When, shut down heating plant, the maximum temperature and the predetermined of fluid tank that can be provided before heating plant is shut down for fluid tank are stopped
Machine temperature is compared, and sets lesser temperature value to the shutdown temperature of fluid tank, and the shutdown of the fluid tank according to setting
Temperature starts heating plant.It can postpone the opening time of heating plant, to reduce the frequent startup-shutdown of heating plant, improve
The service life of heating plant.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
The attached drawing for constituting part of specification describes the embodiment of the present invention, and together with the description for solving
Release the principle of the present invention.
The present invention can be more clearly understood according to following detailed description referring to attached drawing, in which:
Fig. 1 is the flow diagram of one embodiment of supply control method for heat of the present invention.
Fig. 2 is the flow diagram of another embodiment of supply control method for heat of the present invention.
Fig. 3 is the flow diagram of another embodiment of supply control method for heat of the present invention.
Fig. 4 is the flow diagram of the further embodiment of supply control method for heat of the present invention.
Fig. 5 is structural schematic diagram of the present invention for one embodiment of heat control device.
Fig. 6 is structural schematic diagram of the present invention for another embodiment of heat control device.
Fig. 7 is structural schematic diagram of the present invention for one embodiment of thermal control system.
Fig. 8 is structural schematic diagram of the present invention for another embodiment of heat control device.
Fig. 9 is structural schematic diagram of the present invention for the further embodiment of heat control device.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Fig. 1 is the flow diagram of one embodiment of supply control method for heat of the present invention.The supply control method for heat include with
Lower step:
Make heating plant when the temperature of fluid outflow heating plant is higher than the shutdown temperature of heating plant in step 110
It shuts down.Wherein, heating plant can be Teat pump boiler, electric furnace etc., and fluid can be water, oil etc..For example, working as Heat Pump
The leaving water temperature T of the heat pump unit of hydrophoneOutHigher than the shutdown temperature of heat pump unit, that is, it is higher than protection temperature threshold TPump stopsWhen, it should
Heat pump unit is set to carry out stoppage protection.
It can be the maximum temperature T that fluid tank provides in step 120, before heating plant is shut downkWith making a reservation for for fluid tank
Shutdown temperature TIfIt is compared, sets lesser temperature value to the shutdown temperature of fluid tank.Wherein the temperature of fluid tank is anti-
The temperature of fluid in fluid tank is reflected, fluid tank can be water tank, it will be understood by those of skill in the art that being with Teat pump boiler
Example, water tank location, heat pump unit water inlet, user's water supplying pipe etc., which is arranged in, in temperature sensor can reflect the temperature of water tank.
When the temperature of water tank reaches certain value, also shut down heat pump unit, the predetermined shutdown temperature of the water tank can be by user
Setting.
For example, the inflow temperature T of detection heat pump unit can be spaced to schedule in heat pump unit workIntoWith
Leaving water temperature TOut, can according to temperature difference Δ T so as to know the temperature difference Δ T of water outlet and water inlet before heat pump unit shutdown
To calculate the maximum temperature T that Teat pump boiler can be such that the water in water tank reachesk.The pre-set water tank shutdown temperature of user
For TIf, work as TIfGreater than TkWhen, it can be by the shutdown temperature T of water tankIfBeing modified to calculated Teat pump boiler can be such that water tank reaches
The maximum temperature T arrivedk。
In step 130, heating plant is started according to the shutdown temperature of the fluid tank of setting.Wherein, the stream in fluid tank
Temperature be less than setting fluid tank shutdown temperature and predetermined temperature value temperature difference when, start heating plant.For example, detection
Temperature T in water tankInspectionLess than (TkWhen Δ t), so that heat pump unit restarts work, wherein predetermined temperature value Δ t can
It to be arranged according to the actual situation, such as can be 1 DEG C, 2 DEG C, 3 DEG C, 5 DEG C etc..
In this embodiment, when the temperature of fluid outflow heating plant is higher than the shutdown temperature of heating plant, make heat supply
Device is shut down, and can be carried out before heating plant is shut down for the predetermined shutdown temperature for the maximum temperature and fluid tank that fluid tank provides
Compare, sets lesser temperature value to the shutdown temperature of fluid tank, and start according to the shutdown temperature of the fluid tank of setting and supply
Thermal.It can postpone the opening time of heating plant, to reduce the frequent startup-shutdown of heating plant, improve heating plant
Service life.
Fig. 2 is the flow diagram of another embodiment of supply control method for heat of the present invention.The supply control method for heat includes
Following steps:
Make heating plant when the temperature of fluid outflow heating plant is higher than the shutdown temperature of heating plant in step 210
It shuts down.
In step 220, the temperature T of fluid outflow heating plant before shutting down is determinedOutThe temperature of heating plant is flowed into fluid
TInto, according to TOutWith TIntoTemperature difference Δ T the maximum temperature T that can be provided for fluid tank before heating plant is shut down is providedk.Its
In, it can also be according to the temperature T of fluid outflow heating plant before shutting downOutThe temperature T of heating plant is flowed into fluidIntoTemperature difference
Δ T, heating plant can be the maximum temperature T that fluid tank provides under specified fluid flowmax, and in specified fluid flow
The temperature and fluid of lower fluid outflow heating plant and the temperature difference k for flowing into heating plant, to determine energy before heating plant shutdown
The maximum temperature T enough provided for fluid tankk.For example, Tk=Tmax-ΔT+k。
It can be maximum temperature T that fluid tank provides before heating plant shutdown in step 230kMore than or equal to fluid tank
Minimum fluid temperature (F.T.) TIt is lowIn the case where, judge the predetermined shutdown temperature T of fluid tankIfWhether be greater than can before heating plant is shut down
The maximum temperature T provided for fluid tankk.Wherein, the minimum fluid temperature (F.T.) T of fluid tankIt is lowIt can be acceptable minimum for user
Water temperature, the temperature are also by user setting.For example, working as the maximum temperature T that Teat pump boiler can be such that water tank reacheskIt is more than or equal to
User being capable of received minimum water temperature TIt is lowWhen, judge the water tank shutdown temperature T of user settingIfWhether being greater than Teat pump boiler can
The maximum temperature T for reaching water tankk；Wherein, as the maximum temperature T that Teat pump boiler can be such that water tank reacheskIt can less than user
Received minimum water temperature TIt is lowWhen, alert process, such as display failure exception are carried out, user is reminded to report for repairment.
In step 240, in TIfGreater than TkIn the case where, the shutdown temperature value of fluid tank is modified to Tk.I.e. in fluid tank
In the case that predetermined shutdown temperature can be the maximum temperature that fluid tank provides before shutting down greater than heating plant, by stopping for fluid tank
Machine temperature value is modified to the maximum temperature value T that can be provided before heating plant is shut down for fluid tankk.For example, when user sets in advance
The shutdown temperature T of fixed water tankIfIt can be the maximum temperature T that water tank provides before being shut down greater than heat pump unitkWhen, by the pre- of water tank
Determine shutdown temperature TIfIt is modified to the maximum temperature T that calculated heat pump unit can be such that the water in water tank reachesk；When user is preparatory
The predetermined shutdown temperature T of the water tank of settingIfIt can be the maximum temperature T that water tank provides before being shut down less than or equal to heat pump unitkWhen,
Then operated without amendment.
In step 250, the fluid temperature (F.T.) in fluid tank is less than the shutdown temperature and predetermined temperature of revised fluid tank
When the temperature difference of value, start heating plant.
For example, certain model Teat pump boiler is 50m in specified fluid flow (nameplate is nominal)3It can be provided under/h for water tank
Maximum temperature TmaxIt is 55 DEG C, k value is 5 DEG C, and wherein k is definite value；Under metered flow, heat pump unit Inlet and outlet water temperature difference T is 5
DEG C, the protection temperature T of heat pump unitPump stopsIt is 61 DEG C.The shutdown water temperature T of the pre-set water tank of userIfIt is 50 DEG C, user is minimum
Acceptable water temperature TIt is lowIt is 38 DEG C.After project installation, since pump selection is improper, pump capacity is small, and Δ T is up to 15 DEG C, leads
Pyrogenicity pump assembly leaving water temperature TOutGreater than 61 DEG C, heat pump unit is shut down at this time, the highest water temperature T of the available water tank of engineeringkFor
45 DEG C, due to T at this timekGreater than the acceptable water temperature T of userIt is low, and the shutdown temperature T of the water tank of user settingIfGreater than Tk,
Therefore user can be by the shutdown temperature T of water tankIfIt is modified to Tk.When dropping to T under water in water tankkWhen the temperature of Δ t, Δ t
For example 3 DEG C, that is, when the temperature for detecting water tank is 42 DEG C, heat pump unit booting.
In this embodiment, fluid tank can be more than or equal to before heating plant shutdown for the maximum temperature that fluid tank provides
Minimum fluid temperature (F.T.) in the case where, judge the predetermined shutdown temperature of fluid tank whether be greater than heating plant shut down before can for flow
The maximum temperature that body case provides；And it is greater than before heating plant is shut down in the predetermined shutdown temperature of fluid tank and can be provided for fluid tank
Maximum temperature in the case where, the shutdown temperature value of fluid tank, which is modified to before heating plant is shut down, to be provided for fluid tank
Maximum temperature value can give to the greatest extent user's heat supply, and can reduce under the premise of ensureing heating plant reliability
The frequent startup-shutdown of heating plant, improves the service life of heating plant.
Fig. 3 is the flow diagram of another embodiment of supply control method for heat of the present invention.Method includes the following steps:
Make heating plant when the temperature of fluid outflow heating plant is higher than the shutdown temperature of heating plant in step 310
It shuts down.
In step 320, judge before heating plant is shut down to be maximum temperature T that fluid tank provideskWhether it is more than or equal to
The minimum fluid temperature (F.T.) T of fluid tankIt is low, if so, thening follow the steps 330, otherwise, execute step 350.
The maximum temperature and the predetermined of fluid tank that can be provided in step 330, before heating plant is shut down for fluid tank are stopped
Machine temperature row compares, and sets lesser temperature value to the shutdown temperature of fluid tank.
In step 340, the fluid temperature (F.T.) in fluid tank is less than the shutdown temperature and predetermined temperature value of the fluid tank of setting
Temperature difference when, start heating plant.
In step 350, does not start heating plant and carry out alert process.For example, the minimum acceptable water temperature T of userIt is low
It is 38 DEG C, if the highest water temperature T of the available water tank of engineeringkIt is 45 DEG C, due to T at this timekLess than the acceptable water temperature of user
TIt is low, then can show failure exception, user is reminded to report for repairment.
In this embodiment, after stoppage protection occurs in heating plant, engineering heat supply situation is judged automatically, and carry out in time
Corresponding control can give to the greatest extent user's heat supply, when heating plant stops under the premise of ensureing heating plant reliability
When can be less than the minimum fluid temperature (F.T.) of fluid tank before machine for the maximum temperature that fluid tank provides, user can be reminded to report for repairment in time
Maintenance；And the frequent startup-shutdown that can reduce heating plant, improves the service life of heating plant.
The application will be further explained by taking the application of Teat pump boiler as an example below.It wherein, can in engineering equipment
To include Teat pump boiler, water tank, water pump, water pipe, pipeline valve member and connector etc..For example, as shown in figure 4, the heat supply controlling party
Method includes:
In step 410, the inflow temperature T of heat pump unit is recordedIntoWith leaving water temperature TOut。
In step 420, the leaving water temperature T of heat pump unit is judgedOutWhether protection temperature threshold T is higher thanPump stopsIf being higher than, hold
Otherwise row step 430 continues to execute step 410.For example, the type selecting when water pump is improper, cause the Inlet and outlet water of heat pump unit different
Chang Shi, TOutT may be greater thanPump stops。
In step 430, shut down heat pump unit.
In step 440, calculate heat pump unit goes out inflow temperature difference Δ T, wherein Δ T=TOut-TInto。
In step 450, calculating Teat pump boiler can be the highest water temperature T that water tank providesk, wherein it can be according to formula Tk
=TmaxIt can be the highest water temperature that water tank provides that Δ T+k, which calculates Teat pump boiler, wherein TmaxFor under metered flow, heat pump
The maximum temperature that water heater can be such that water tank reaches, the TmaxValue confirms in the Teat pump boiler design phase, is a known quantity,
It can be definite value, can also change with variation of ambient temperature, for example, being 5m in metered flow3/ h, when environment temperature is -20 DEG C
TmaxBe 55 DEG C, and environment temperature be 15 DEG C when, TmaxIt is 60 DEG C.K is the disengaging water temperature difference of heat pump unit under metered flow,
The k value confirms in the Teat pump boiler design phase, can be definite value, can also change with variation of ambient temperature.
In step 460, judge that Teat pump boiler can be highest water temperature T that water tank provideskWhether being more than or equal to user can
The minimum water temperature T receivedIt is low；If being less than, 470 are thened follow the steps, if it is greater than or equal to thening follow the steps 480.
In step 470, failure exception is shown, user is reminded to report for repairment, keep heat pump unit to be in shutdown status at this time.Example
Such as, user's water shortage is reminded, needs to safeguard water conservancy equipment etc. in time.For example, the minimum acceptable water temperature T of userIt is lowIt is 38
DEG C, if the highest water temperature T of the available water tank of engineeringkIt is 45 DEG C, due to T at this timekLess than the acceptable water temperature T of userIt is low,
It can then show failure exception, user is reminded to report for repairment.
In step 480, the shutdown temperature T of the pre-set water tank of user is judgedIfWhether being greater than Teat pump boiler can be
The highest water temperature T that water tank providesk, if more than thening follow the steps 490, otherwise, executing step 4100.
In step 490, the shutdown temperature T of water tank is correctedIfFor Tk.After engineering water route is repaired, water tank can be restored automatically
Shutdown temperature.
In step 4100, it can be the highest water temperature T that water tank provides that whether the temperature for detecting water tank, which is less than Teat pump boiler,k
4110 are thened follow the steps if being less than with the difference of predetermined temperature value Δ t, otherwise, executes step 4120.
In step 4110, start heat pump unit.In heat pump unit work, the Inlet and outlet water for monitoring heat pump unit can be continued
Temperature, so as to be shut down in time in the Inlet and outlet water exception of heat pump unit.
In step 4120, heat pump unit is kept to be in shutdown status.
In this embodiment, by detecting the inlet and outlet temperature of heat pump unit, when the leaving water temperature of heat pump unit is excessively high,
The shutdown temperature of amendment water tank in time ensures that heat pump unit provides the user with hot water to the full extent, and reduces heat pump machine
The start-stop unit frequency of group, improves the service life of heat pump unit.In addition, heat pump unit provide water tank highest water temperature without
When method meets user's minimum requirement, user is reminded to report maintenance for repairment in time.Therefore, this method can more be bonded the practical feelings of engineering
Condition provides best hot water temperature, greatly reinforces the adaptability of unit.
Fig. 5 is structural schematic diagram of the present invention for one embodiment of heat control device.This includes stopping for heat control device
Machine control unit 510, temperature setting unit 520 and starting up's unit 530.
Control unit 510 is shut down to be used for when the temperature of fluid outflow heating plant is higher than the shutdown temperature of heating plant,
Shut down heating plant.Wherein, heating plant can be Teat pump boiler, electric furnace etc., and fluid can be water, oil etc..Example
Such as, as the leaving water temperature T of the heat pump unit of Teat pump boilerOutHigher than the protection temperature threshold T of heat pump unitPump stopsWhen, it should make heat
Pump assembly carries out stoppage protection.
The maximum temperature T that temperature setting unit 520 can provide before being used to shut down heating plant for fluid tankkWith fluid
The predetermined shutdown temperature T of caseIfIt is compared, sets lesser temperature value to the shutdown temperature of fluid tank.Wherein fluid tank
Temperature is to reflect the temperature of fluid in fluid tank, and fluid tank can be water tank, it will be understood by those of skill in the art that with heat pump
For water heater, temperature sensor, which is arranged, can reflect water tank in water tank location, heat pump unit water inlet, user's water supplying pipe etc.
Temperature.When the temperature of water tank reaches certain value, also shut down heat pump unit, the predetermined shutdown temperature of the water tank can be with
By user setting.
It wherein, can be the maximum temperature T that fluid tank provides before heating plant is shut downkAccording to fluid outflow and stream before shutting down
Enter the temperature difference Δ T of heating plant to determine.In TIfGreater than TkIn the case where, i.e., it is greater than in the predetermined shutdown temperature of fluid tank and supplies
In the case where the maximum temperature that thermal can provide before shutting down for fluid tank, temperature setting unit 520 is by the shutdown of fluid tank
Temperature value is configured to allow for the maximum temperature value T that can be provided before thermal is shut down for fluid tankk。
Starting up's unit 530 is used to start heating plant according to the shutdown temperature of the fluid tank of setting.Wherein, in fluid
Fluid temperature (F.T.) in case be less than the fluid tank of setting shutdown temperature and predetermined temperature value temperature difference when, start heating plant.
For example, detecting the temperature T in water tankInspectionLess than (TkWhen Δ t), so that heat pump unit restarts work, wherein predetermined temperature
Angle value Δ t can be arranged according to the actual situation, such as can be 1 DEG C, 2 DEG C, 3 DEG C, 5 DEG C etc..
In this embodiment, when the temperature of fluid outflow heating plant is higher than the shutdown temperature of heating plant, make heat supply
Device is shut down, and can be carried out before heating plant is shut down for the predetermined shutdown temperature for the maximum temperature and fluid tank that fluid tank provides
Compare, sets lesser temperature value to the shutdown temperature of fluid tank, and start according to the shutdown temperature of the fluid tank of setting and supply
Thermal.It can postpone the opening time of heating plant, to reduce the frequent startup-shutdown of heating plant, improve heating plant
Service life.
Fig. 6 is structural schematic diagram of the present invention for another embodiment of heat control device.This includes for heat control device
Shut down control unit 610, heat supply temperature determination unit 620, temperature judging unit 630, temperature setting unit 640 and starting up
Unit 650.
Control unit 610 is shut down to be used for when the temperature of fluid outflow heating plant is higher than the shutdown temperature of heating plant,
Shut down heating plant.
Heat supply temperature determination unit 620 shuts down the temperature T of preceding fluid outflow heating plant for determiningOutIt flows into and supplies with fluid
The temperature T of thermalInto, according to TOutWith TIntoTemperature difference Δ T the highest that can be provided for fluid tank before heating plant is shut down is provided
Temperature Tk.Heat supply temperature determination unit 620 can also be according to the temperature of fluid outflow heating plant before shutting down in one embodiment
Spend TOutThe temperature T of heating plant is flowed into fluidIntoTemperature difference Δ T, heating plant can be fluid under specified fluid flow
The maximum temperature T that case providesmax, and under specified fluid flow fluid outflow and the temperature difference k that flows into heating plant, come true
The maximum temperature T that can be provided before heating plant is shut down for fluid tank is providedk.For example, Tk=Tmax-ΔT+k。
Temperature judging unit 630 is used in TkMore than or equal to the minimum fluid temperature (F.T.) T of fluid tankIt is lowIn the case where, judge TIf
Whether T is greater thank, i.e., can be more than or equal to the lowest stream of fluid tank for the maximum temperature that fluid tank provides before heating plant shutdown
In the case where temperature, judging whether the predetermined shutdown temperature of fluid tank is greater than before heating plant is shut down can provide for fluid tank
Maximum temperature.The minimum fluid temperature (F.T.) of fluid tank can be the acceptable minimum water temperature of user, which is also by user
Setting.
Temperature setting unit 640 is used in TIfGreater than TkIn the case where, the shutdown temperature value of fluid tank is modified to Tk.I.e.
It, will in the case where the predetermined shutdown temperature of fluid tank, which is greater than before heating plant is shut down, to be the maximum temperature that fluid tank provides
The predetermined shutdown temperature value of fluid tank is modified to the maximum temperature value that can be provided before heating plant is shut down for fluid tank.For example,
As the shutdown temperature T of the preset water tank of userIfIt can be the maximum temperature T that water tank provides before being shut down greater than heat pump unitk
When, by the predetermined shutdown temperature T of water tankIfIt is modified to the maximum temperature that calculated heat pump unit can be such that the water in water tank reaches
Tk；As the predetermined shutdown temperature T of the preset water tank of userIfIt can be provided before being shut down less than or equal to heat pump unit for water tank
Maximum temperature TkWhen, then it is operated without amendment.
Starting up's unit 650 in fluid tank fluid temperature (F.T.) be less than revised fluid tank shutdown temperature with
When the temperature difference of predetermined temperature value, start heating plant.
In this embodiment, fluid tank can be more than or equal to before heating plant shutdown for the maximum temperature that fluid tank provides
Minimum fluid temperature (F.T.) in the case where, judge the predetermined shutdown temperature of fluid tank whether be greater than heating plant shut down before can for flow
The maximum temperature that body case provides；And it is greater than before heating plant is shut down in the predetermined shutdown temperature of fluid tank and can be provided for fluid tank
Maximum temperature in the case where, by the predetermined shutdown temperature value of fluid tank be modified to heating plant shut down before can be mentioned for fluid tank
The maximum temperature value of confession can give to the greatest extent user's heat supply, and can under the premise of ensureing heating plant reliability
The frequent startup-shutdown for reducing heating plant, improves the service life of heating plant.
In another embodiment of the present invention, this can also include alert process unit 660 for heat control device,
In, alert process unit 660 is used for the maximum temperature T that can be provided before heating plant shutdown for fluid tankkNo more than fluid
The minimum fluid temperature (F.T.) T of caseIt is lowIn the case where, carry out alert process.For example, the minimum acceptable water temperature T of userIt is lowIt is 38 DEG C,
If the highest water temperature T of the available water tank of engineeringkIt is 45 DEG C, due to T at this timekLess than the acceptable water temperature T of userIt is low, then may be used
To show failure exception, user is reminded to report for repairment, keeps heating plant to be in shutdown status at this time.
In this embodiment, after stoppage protection occurs in heating plant, engineering heat supply situation is judged automatically, and carry out in time
Corresponding control can give to the greatest extent user's heat supply, when heating plant stops under the premise of ensureing heating plant reliability
When can be less than the minimum fluid temperature (F.T.) of fluid tank before machine for the maximum temperature that fluid tank provides, user can be reminded to report for repairment in time
Maintenance；And the frequent startup-shutdown that can reduce heating plant, improves the service life of heating plant.
In another embodiment of the present invention, a kind of heating plant includes in above-described embodiment for heat control device,
The heating plant can be Teat pump boiler, electric furnace etc..
In this embodiment, which can judge automatically engineering heat supply situation after there is stoppage protection, and and
Shi Jinhang is controlled accordingly, can give to the greatest extent user's heat supply, and energy under the premise of ensureing heating plant reliability
The frequent startup-shutdown for enough reducing heating plant, improves the service life of heating plant.
Fig. 7 is structural schematic diagram of the present invention for one embodiment of thermal control system.This includes temperature for thermal control system
Spend sensor 710 and controller 720.
Temperature sensor 710 is used to detect the fluid outflow temperature of heating plant, fluid flow into heating plant temperature or
The temperature of person's fluid tank.By taking Teat pump boiler as an example, which can be set the water outlet in heat pump unit, heat
The water inlet of pump assembly, the positions such as water tank box are respectively used to the leaving water temperature of detection heat pump unit, enter coolant-temperature gage and water tank
Temperature etc..Controller 720 can execute any one supply control method for heat being mentioned above.
This can reduce the frequent startup-shutdown of heating plant for thermal control system, improve the service life of heating plant；In
When the temperature that heating plant provides is unable to satisfy user's minimum requirement, user is reminded to report maintenance for repairment in time.In addition, the heat supply
Control system is more bonded engineering practice, can ensure unit heat supply to the full extent, greatly reinforces the adaptation energy of unit
Power.
Fig. 8 is structural schematic diagram of the present invention for another embodiment of heat control device.It include depositing for heat control device
Reservoir 810 and processor 820.Wherein: memory 810 can be disk, flash memory or other any non-volatile memory mediums.It deposits
Reservoir is used to store the instruction in embodiment corresponding to Fig. 1-4.Processor 820 is coupled to memory 810, can be used as one or
Multiple integrated circuits are implemented, such as microprocessor or microcontroller.The processor 820 is for executing the finger stored in memory
It enables.
It in one embodiment, can be as shown in figure 9, this includes memory 910 and processor for heat control device 900
920.Processor 920 is coupled to memory 910 by BUS bus 930.This can also be connect for heat control device 900 by storage
Mouthfuls 940 are connected to external memory 950 to call external data, can also be connected to by network interface 960 network or
The other computer system (not shown) of person.It no longer describes in detail herein.
In this embodiment, which can judge automatically engineering heat supply situation after there is stoppage protection, and and
Shi Jinhang is controlled accordingly, can give to the greatest extent user's heat supply, and energy under the premise of ensureing heating plant reliability
The frequent startup-shutdown for enough reducing heating plant, improves the service life of heating plant.
In another embodiment, a kind of computer readable storage medium, is stored thereon with computer program instructions, this refers to
The step of order realizes the method in embodiment corresponding to Fig. 1-4 when being executed by processor.It should be understood by those skilled in the art that,
The embodiment of the present invention can provide as method, apparatus or computer program product.Therefore, complete hardware reality can be used in the present invention
Apply the form of example, complete software embodiment or embodiment combining software and hardware aspects.Moreover, the present invention can be used one
It is a or it is multiple wherein include computer usable program code computer can with non-transient storage medium (including but not limited to
Magnetic disk storage, CD-ROM, optical memory etc.) on the form of computer program product implemented.
The present invention be referring to according to the method for the embodiment of the present invention, the flow chart of equipment (system) and computer program product
And/or block diagram describes.It should be understood that each process in flowchart and/or the block diagram can be realized by computer program instructions
And/or the combination of the process and/or box in box and flowchart and/or the block diagram.It can provide these computer programs to refer to
Enable the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to generate
One machine so that by the instruction that the processor of computer or other programmable data processing devices executes generate for realizing
The device for the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
So far, the present invention is described in detail.In order to avoid covering design of the invention, it is public that this field institute is not described
The some details known.Those skilled in the art as described above, completely it can be appreciated how implementing technology disclosed herein
Scheme.
Method and device of the invention may be achieved in many ways.For example, can by software, hardware, firmware or
Person's software, hardware, firmware any combination realize method and device of the invention.The step of for the method it is above-mentioned
Sequence is merely to be illustrated, and the step of method of the invention is not limited to sequence described in detail above, unless with other sides
Formula illustrates.In addition, in some embodiments, the present invention can be also embodied as recording program in the recording medium, these
Program includes for realizing machine readable instructions according to the method for the present invention.Thus, the present invention also covers storage for executing
The recording medium of program according to the method for the present invention.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that above example merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of supply control method for heat characterized by comprising
When the temperature of fluid outflow heating plant is higher than the shutdown temperature of the heating plant, shut down the heating plant；
The maximum temperature T that can be provided before heating plant shutdown for fluid tankkMore than or equal to the lowest stream of the fluid tank
Temperature TIt is lowIn the case where, by the TkWith the predetermined shutdown temperature T of the fluid tankIfIt is compared, by lesser temperature value
It is set as the shutdown temperature of the fluid tank；Wherein, Tk=Tmax- △ T+k, TmaxIt is described for hot charging under specified fluid flow
Setting can be the maximum temperature that the fluid tank provides, and k is that the fluid flows out and flow into the confession under specified fluid flow
The temperature difference of thermal, △ T are the temperature T that the fluid flows out the heating plant before the heating plant is shut downOutWith it is described
Fluid flows into the temperature T of the heating plantIntoTemperature difference；
Start the heating plant according to the shutdown temperature of the fluid tank of setting.
2. supply control method for heat according to claim 1, which is characterized in that further include:
In the TkNo more than the minimum fluid temperature (F.T.) T of the fluid tankIt is lowIn the case where, do not start the heating plant, and carry out
Alert process.
3. supply control method for heat according to claim 1 to 2, which is characterized in that the fluid temperature in the fluid tank
When spending the temperature difference of the shutdown temperature and predetermined temperature value that are less than the fluid tank being arranged, start the heating plant.
4. a kind of for heat control device characterized by comprising
Control unit is shut down, for making when the temperature of fluid outflow heating plant is higher than the shutdown temperature of the heating plant
The heating plant is shut down；
Its heat supply temperature determination unit, for according to formula Tk=Tmax- △ T+k determines that before the heating plant is shut down can be stream
The maximum temperature T that body case providesk, wherein TmaxIt can be that the fluid tank mentions for the heating plant described under specified fluid flow
The maximum temperature of confession, k are the temperature difference that the fluid flows out and flow into the heating plant under specified fluid flow, and △ T is
The fluid flows out the temperature T of the heating plant before the heating plant is shut downOutThe heating plant is flowed into the fluid
Temperature TIntoTemperature difference；
Temperature judging unit, for judging before the heating plant is shut down to be maximum temperature T that fluid tank provideskIt is whether big
In the minimum fluid temperature (F.T.) T for being equal to the fluid tankIt is low；
Temperature setting unit, in the TkMore than or equal to the TIt is lowIn the case where, can be before the heating plant is shut down
The maximum temperature T that fluid tank provideskWith the predetermined shutdown temperature T of the fluid tankIfIt is compared, lesser temperature value is arranged
For the shutdown temperature of the fluid tank；
Starting up's unit, the shutdown temperature for the fluid tank according to setting start the heating plant.
5. according to claim 4 for heat control device, which is characterized in that further include:
Alert process unit, in the TkNo more than the minimum fluid temperature (F.T.) T of the fluid tankIt is lowIn the case where, it alarms
Processing；
Wherein, the heating plant remains shut off state.
6. any described for heat control device according to claim 4-5, which is characterized in that starting up's unit is used for
Fluid temperature (F.T.) in the fluid tank be less than the fluid tank of setting shutdown temperature and predetermined temperature value temperature difference when, open
Move the heating plant.
7. a kind of heating plant, which is characterized in that any described for heat control device including claim 4-6.
8. a kind of for heat control device characterized by comprising
Memory；And
It is coupled to the processor of the memory, the processor is configured to based on the instruction execution for being stored in the memory
Method as described in any one of claims 1 to 3.
9. a kind of computer readable storage medium, is stored thereon with computer program instructions, real when which is executed by processor
The step of existing claims 1 to 3 described in any item methods.
10. a kind of for thermal control system characterized by comprising
Temperature sensor, for detecting the temperature of fluid outflow heating plant, the temperature and fluid tank of fluid inflow heating plant
One or more of temperature；And
Controller, for executing method as described in any one of claims 1 to 3.
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| CN201710338364.4A CN107120842B (en) | 2017-05-15 | 2017-05-15 | Supply control method for heat, for heat control device, for thermal control system and heating plant |
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| CN108196452B (en) * | 2018-01-05 | 2020-12-29 | 山西瑞光热电有限责任公司 | Heat supply unit optimal initial pressure operation control system and method based on heat balance |
| CN108507171B (en) * | 2018-03-15 | 2020-09-04 | 珠海格力电器股份有限公司 | Control method and device for heat pump water heater |
| CN110906435A (en) * | 2019-12-03 | 2020-03-24 | 陕西四季春清洁热源股份有限公司 | New energy-based non-interference geo-rock heat combined heat supply control system and method |
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| CN102997443A (en) * | 2012-11-26 | 2013-03-27 | 顺德职业技术学院 | Optimal control method for heat pump-gas water heater combination |
| CN103542534A (en) * | 2013-10-08 | 2014-01-29 | 广东美的暖通设备有限公司 | Control method and control device of heat-pump water heater and heat-pump water heater |
| CN104566996A (en) * | 2014-12-12 | 2015-04-29 | 广东美的暖通设备有限公司 | Control method and system for heat pump water heater |
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| EP3029540A1 (en) * | 2014-11-20 | 2016-06-08 | Bradford White Corporation | Thermostat, water heater including the thermostat, and method of controlling the temperature of water in a water tank of the water heater |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997443A (en) * | 2012-11-26 | 2013-03-27 | 顺德职业技术学院 | Optimal control method for heat pump-gas water heater combination |
| CN103542534A (en) * | 2013-10-08 | 2014-01-29 | 广东美的暖通设备有限公司 | Control method and control device of heat-pump water heater and heat-pump water heater |
| CN104566996A (en) * | 2014-12-12 | 2015-04-29 | 广东美的暖通设备有限公司 | Control method and system for heat pump water heater |
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