CN104769364B - Thermal balance unit and its control method and control device - Google Patents
Thermal balance unit and its control method and control device Download PDFInfo
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- CN104769364B CN104769364B CN201280076473.9A CN201280076473A CN104769364B CN 104769364 B CN104769364 B CN 104769364B CN 201280076473 A CN201280076473 A CN 201280076473A CN 104769364 B CN104769364 B CN 104769364B
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- 238000000034 method Methods 0.000 title claims description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 225
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000013461 design Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 9
- 238000013507 mapping Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000000875 corresponding effect Effects 0.000 description 17
- 230000008859 change Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000008400 supply water Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
A kind of thermal balance unit includes heat supplying pipeline and control device, and heat supplying pipeline includes user's water inlet pipe (1), user's return pipe (2) and bypass pipe (3)；Control device includes controller (6) and the temperature sensor being connected with controller (6) and the motor-driven valve (5) and water pump (4) that are arranged on heat supplying pipeline；The first end connection heating unit (S1) of user's water inlet pipe (1) and user's return pipe (2), the second end connection terminal user (S2)；The adjustment frequency of controller (6) adjustment motor-driven valve (5) aperture is equal to or more than the adjustment frequency that controller (6) adjusts water pump (4) rotating speed, whether controller (6) judges user's water inlet pipe (1) inflow temperature that temperature sensor detects with the temperature difference of the return water temperature of user's return pipe (2) in the temperature range of setting, control water pump increase rotating speed when such as higher than the upper limit of setting temperature range, control water pump reduction rotating speed during less than the lower limit for setting temperature range.
Description
Technical field
The present invention relates to heating system, more particularly to a kind of thermal balance unit and its control method and control device.
Background technology
Central heating system includes being used to produce the hot equipment such as the steam power plant of thermal source and heat is transported into terminal user
Heating network, thermal balance unit is generally installed on the heating network of terminal user front end.
As shown in figure 1, the mechanical structure portion for the thermal balance unit of heating system including one end is connected to heat supply list
First S1 (or thermal source, the heating network for example come out from steam power plant), the other end are connected to two of terminal user's S2 radiators
Heat supplying pipeline, one is user's water inlet pipe 1, and one is user's return pipe 2, is pacified between user's water inlet pipe 1 and user's return pipe 2
Equipped with bypass pipe 3, the referred to as close heating unit S1 in the left side of bypass pipe 3, the first side of thermal balance unit, bypass pipe 3 and its right side
It is the second side of thermal balance unit close to terminal user.
For user's water inlet pipe 1, user's water inlet can be divided into using the intersection point of user's water inlet pipe 1 and bypass pipe 3 as boundary
The first side of pipe 11 and the second side of user's water inlet pipe 12；Equally, can also user's return pipe 2 and side for user's return pipe 2
The intersection point of siphunculus 3 is boundary, is divided into the first side of user's return pipe 21 and the second side of user's return pipe 22.
As shown in figure 1, water pump 4 can be provided with user's water inlet pipe 1, user's return pipe 2 or bypass pipe 3, to provide
The circulation power that heating medium (hot water) flows in heat supplying pipeline.Check valve 7 is also equipped with bypass pipe 3, is entered in user
The first side of water pipe 11 or the first side of user's return pipe 21 are provided with motor-driven valve 5.The hot water for coming from heating unit is intake by user
The first side of pipe 11 is after the entrance terminal user S2 of the second side of user's water inlet pipe 12 radiator (not shown) radiating through user
The second side of return pipe 22 flows into the first side of user's return pipe 21, in the presence of check valve 7 and motor-driven valve 5, flows into user's backwater
Heating medium in the second side of pipe 22 can flow back to heating unit S1 through the first side of user's return pipe 21, can also through bypass pipe 3,
Terminal user S2 radiator is again flowed into behind the second side of user's water inlet pipe 12；Or the heat supply in the second side of user's return pipe 22
A part in medium flows back to heating unit S1, and another part again flows into terminal through bypass pipe 3, the second side of user's water inlet pipe 12
User S2 radiator, participates in circulation cooling.
However, traditional central heating has huge energy waste situation.The thermal loss of central heating is generally sent out
The raw heat supplying pipeline in thermal balance unit, the key factor for causing heat loss is that fluid power is uneven, and fluid power imbalance means
Low Temperature Difference (Δ T, i.e. inflow temperature and the return water temperature temperature difference) and high flow capacity in heating system, between heat supplying pipeline and environment
Heat exchange causes substantial amounts of thermal losses.
However, the thermal balance unit of the central heating of prior art, does not control effectively for above-mentioned situation.It is existing
The thermal balance unit allocation method of technology, only carries out flow constant control, or enter just for inflow temperature or return water temperature
Row adjustment, and efficient energy-saving can not be accomplished simultaneously and comfort level is improved.
The content of the invention
For problems of the prior art, it is an object of the invention to provide a kind of thermal balance machine set control device,
Efficient energy-saving can not be accomplished simultaneously and improve the technical problem of comfort level by solving the thermal balance machine set control device of prior art.
Another object of the present invention is to provide a kind of thermal balance unit allocation method, existing thermal balance unit control is solved
Method processed can not accomplish efficient energy-saving simultaneously and improve the technical problem of comfort level.
The present invention also aims to provide a kind of thermal balance unit with thermal balance machine set control device of the present invention.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of thermal balance machine set control device, the heat supplying pipeline of the thermal balance unit includes user's water inlet pipe, user and returned
The first end connection heating unit of water pipe and bypass pipe, user's water inlet pipe and user's return pipe, the connection of the second end is eventually
End subscriber；The thermal balance machine set control device includes controller and the temperature sensor being connected with the controller and set
Put motor-driven valve and water pump on the heat supplying pipeline；The controller includes sensor assembly, motor-driven valve control module and water
Pump control module：The sensor assembly, to receive temperature signal that the temperature sensor detected and send to described
Motor-driven valve control module and water pump control modules；The motor-driven valve control module, to control the aperture of the motor-driven valve to adjust,
The motor-driven valve is connected on user's water inlet pipe or user's return pipe, and the motor-driven valve control module adjusts the motor-driven valve
Inflow temperature to set water temperature of the aperture to adjust the side of user's water inlet pipe second in the range of；The water pump control modules, are used to
The adjustment of rotational speed of the water pump is controlled, to adjust the inflow temperature and user's backwater that the temperature sensor is detected
In the temperature difference of the return water temperature of pipe to setting temperature range.
The thermal balance unit of the present invention, the thermal balance machine set control device with the present invention.
A kind of thermal balance unit allocation method, the thermal balance unit includes heat supplying pipeline and control device, the heat supply
Pipeline includes user's water inlet pipe, user's return pipe and bypass pipe；The control device include controller and with the controller phase
The temperature sensor of connection and the motor-driven valve and water pump being arranged on the heat supplying pipeline；User's water inlet pipe and the use
The first end connection heating unit of family return pipe, the second end connection terminal user；The motor-driven valve, is connected to user's water inlet
On pipe or user's return pipe, what the controller adjusted the aperture of the motor-driven valve to adjust the side of user's water inlet pipe second enters water temperature
In the range of degree to set water temperature；The controller adjusts the rotating speed of the water pump to adjust the institute that the temperature sensor is detected
The temperature difference for stating inflow temperature and the return water temperature of user's return pipe is extremely set in temperature range.
As shown from the above technical solution, thermal balance unit of the invention and its control method and the advantage and product of control device
Pole effect is：Present invention is primarily directed to the mixture circulatory system with automatic/hand/distance control mode, it not only may be used
With the supply water temperature of control terminal user, and the temperature difference of the return at user can be controlled；Temperature control can be expanded simultaneously
Scope, reaches optimum energy-saving effect.In order to reduce thermal loss, save the electric energy of water circulating pump, the present invention propose flow and
Temperature control is joined together, and such supply water temperature changes with the thermal load demands of outdoor temperature or reality, while flow phase
Answer ground as the temperature difference changes automatically, a more economical heat balance system is built between heat source side and user terminal, can be according to room
Outer temperature change meets the heat demand amount of user with relatively low cost.The temperature difference of thermal balance unit inflow temperature and return water temperature
(Δ T) is vital, if the temperature difference increase between inflow temperature and return water temperature, and identical heat can be converted
Into than relatively low flow.The present invention is advantageous in that maximized other of Δ T, total fuel efficiency of steam power plant is high, electrical efficiency is high,
Pump energy needed for during heated conveying is low, reduces related distribution loss.
By description of a preferred embodiment referring to the drawings, above-mentioned and other purpose of the invention, feature and excellent
Point will be apparent from.
Brief description of the drawings
Fig. 1 is the schematic diagram of the thermal balance unit of prior art；
Fig. 2 is the schematic diagram of the thermal balance unit allocation method of first embodiment of the invention；
Fig. 3 is the schematic diagram of the thermal balance unit allocation method of third embodiment of the invention；
Fig. 4 is the schematic diagram of the thermal balance unit allocation method of fourth embodiment of the invention；
Fig. 5 is the schematic diagram of the thermal balance unit allocation method of fifth embodiment of the invention；
Fig. 6 is the schematic diagram of the thermal balance machine set control device of the embodiment of the present invention.
Embodiment
The specific embodiment of the present invention is described more fully below.It should be noted that the embodiments described herein is served only for citing
Illustrate, be not intended to limit the invention.
The thermal balance unit of the embodiment of the present invention, the thermal balance machine set control device with the embodiment of the present invention, using this
The thermal balance unit allocation method of inventive embodiments carries out the control of aperture and rotating speed.
The thermal balance unit of various embodiments of the present invention, can be the heat supply control for one or several residential building.
Control method embodiment 1
As shown in Fig. 2 the thermal balance unit allocation method of first embodiment of the invention, its embodiment of the present invention applied
Thermal balance unit include heat supplying pipeline and control device, the heat supplying pipeline include user's water inlet pipe 1, the and of user's return pipe 2
Bypass pipe 3, for user's water inlet pipe 1 and user's return pipe 2, can be boundary with the intersection point of bypass pipe 3, be respectively divided into user and enter
The first side of water pipe 11 and the second side of user's water inlet pipe 12, the first side of user's return pipe 21 and the second side of user's return pipe 22.And use
The first end connection heating unit S1 of family water inlet pipe 1 and user's return pipe 2, the second end connection terminal user S2.And control device
Including controller 6, temperature sensor, motor-driven valve 5 and water pump 4.Water pump 4 is preferably variable frequency pump, can adjust rotating speed, for example
For mug(unit of measure) nano-electron pump (Magna) or TPE electronic pumps, the frequency conversion part of water pump 4 can both be arranged on the water pump on heat supplying pipeline
In 4 bodies, it can also be arranged in controller 6, therefore water pump 4 both can be integral type variable frequency pump or split type
Variable frequency pump.
The temperature sensor, is connected to controller 6, and detected temperature data is returned to controller 6.The present embodiment
In, temperature sensor includes inflow temperature sensor T2, return water temperature sensor T3 and outdoor temperature sensors T0, is respectively used to
Detect inflow temperature, return water temperature and outdoor temperature.Wherein, inflow temperature sensor T2 is arranged at the side of user's water inlet pipe second
12, return water temperature sensor T3 is arranged at the second side of user's return pipe 22, and outdoor temperature sensors T0 is then arranged at open air, uses
In the actual outdoor temperature of detection.
In the present embodiment, water pump 4 is connected on user's water inlet pipe 1, is specifically connected to the side of user's water inlet pipe second
12, and the thermal balance unit allocation method of first embodiment of the invention, the control of its control device is mainly reflected in water pump 4
Adjustment of rotational speed and the aperture adjustment to motor-driven valve 5.And the present invention be to the correlated condition of the adjustment of rotational speed of water pump 4 inflow temperature and
The change of temperature difference between return water temperature.Although in addition, motor-driven valve 5 is arranged on user's return pipe 2, specifically in user
The first side of return pipe 21, but it is the inflow temperature detected by inflow temperature sensor T2 to carry out the correlated condition of aperture adjustment
Change.It is of course also possible to return water temperature sensor T3 be set in the first side of user's return pipe 21, to detect return water temperature.
And the change and the change of return water temperature of above-mentioned temperature difference, it is beyond the poor scope of design temperature or to set
Determine after inflow temperature scope, be just adjusted；And it is adjusted in two kinds of situation, one kind is to exceed the poor scope of design temperature
Or the upper limit of setting inflow temperature scope, another lower limit less than the poor scope of design temperature or setting inflow temperature scope.
And the poor scope of design temperature or setting inflow temperature scope, then it is in the poor central value of design temperature and setting inflow temperature central value
Fluctuate ± 0.1~± 1 and formed, the poor central value of such as design temperature and setting inflow temperature central value ± 0.3 or ±
0.5 and formed.
The thermal balance unit allocation method of the embodiment of the present invention, its design temperature difference central value and setting inflow temperature center
Value is relevant with outdoor temperature, and the present invention is exactly in view of only progress flow constant control, or just for entering in the prior art
Coolant-temperature gage or return water temperature be adjusted and can not at the same accomplish efficient energy-saving and improve comfort level defect, for different open airs
Temperature, according to the temperature difference central value of corresponding inflow temperature and return water temperature to adjust the rotating speed of water pump 4 to adjust heating tube
Flow velocity in road, the aperture of motor-driven valve 5 is adjusted according to corresponding return water temperature central value to adjust the flow in heat supplying pipeline.
Two above-mentioned corresponding relations, the prior corresponding relation obtained by many experiments that can be stored by controller
Table or corresponding relation curve (function), when being adjusted, the outdoor temperature transmitted for outdoor temperature sensors T0 leads to
Cross the mode of searching above-mentioned mapping table or obtained corresponding relation curve (function) by way of calculating.It can also adopt
The mode being combined with tabling look-up with calculating.
Mapping table for example shown in table 1.The situation that table 1 is applicable is that area of heat-supply service is 7500m2, thermic load is
80W/m2Situation.
Table 1
As shown in table 1, in the present embodiment, first by external condition, control the first side of user's water inlet pipe 11 enters water temperature
Degree is constant all the time, and due to return water temperature sensor T3 only one of which, therefore, the return water temperature in the first side of user's return pipe 21
It is also considered as with the return water temperature in the second side of user's return pipe 22 equal.As shown in Table 1, the inflow temperature of the first side and backwater temperature
The temperature difference of degree increases with the increase of outdoor temperature, and the inflow temperature of the second side and the temperature difference of return water temperature are at 4 DEG C
It is to increase with the increase of outdoor temperature when following.
In order to illustrate to become apparent from, line number in table 1 is less, field is more, but in controller 6, it is only necessary to store " outdoor
Temperature ", " inflow temperature of the second side ", " look-up table (or curve) of the field such as Δ t " of the second side, therein " second
The inflow temperature of side ", namely the setting inflow temperature central value to be searched, and " the Δ t " of the second side then to be searched
The central value of design temperature difference scope.Detect after outdoor temperature, search " the Δ t " of the second side corresponding to the outdoor temperature
" inflow temperature of the second side ", to determine the need for adjustment.
Certainly, the line number of above-mentioned look-up table is limited after all, when being tabled look-up, and perhaps the numerical value of some outdoor temperatures is simultaneously
It is not stored in above-mentioned look-up table, such as by taking the precision of table 1 as an example, 2 DEG C, -3 DEG C of outdoor temperature value is not appeared in table 1, then
Can the method for interpolation come by the 0 of its two ends DEG C and 4 DEG C by linear function interpolation (i.e. linear interpolation) by way of determine
The inflow temperature of the second side corresponding to 2 DEG C of outdoor temperature value is 64 DEG C, and the Δ t of the second side is 29.5 DEG C, outdoor temperature value -3
The inflow temperature of the second side corresponding to DEG C is 66.5 DEG C, and the Δ t of the second side is 26 DEG C.In order to improve accuracy, it can also adopt
With methods such as quadratic interpolations.
When specifically carrying out the aperture adjustment of motor-driven valve 5, controller 6 judges the water inlet that inflow temperature sensor T2 is detected
Whether temperature is in the range of the setting inflow temperature in table 1, if the inflow temperature detected is higher than the setting inflow temperature model
The upper limit enclosed, the control motor-driven valve 5 of controller 6 reduces aperture, the inflow temperature detected sets inflow temperature model less than as described in
The lower limit enclosed, then controller 6 control motor-driven valve 5 increase aperture；The amplitude specifically increased can be determined by actual conditions.
When specifically carrying out the adjustment of rotational speed each time of water pump 4, controller 6 judges what inflow temperature sensor T2 was detected
Whether the difference for the return water temperature that inflow temperature and return water temperature sensor T3 are detected in the setting temperature range in table 1,
Such as the upper limit of the difference higher than setting temperature range of inflow temperature and return water temperature, controller 6 controls the increase of water pump 4 to turn
Speed；Such as less than the lower limit of setting temperature range, the reduction of water pump 4 rotating speed is controlled, specific adjustment amplitude is also by concrete condition
It is determined that.
Using the inflow temperature that temperature sensor is detected be 75 DEG C, return water temperature be 64 DEG C, outdoor temperature as -16 DEG C, temperature
The poor scope of degree and return water temperature scope are taken exemplified by central value ± 0.3, because the temperature difference detected is 11 DEG C, and is tabled look-up and are understood family
Outer temperature is to set inflow temperature scope as 73 DEG C ± 0.3 corresponding to -16 DEG C, the poor scope of corresponding design temperature is 13 DEG C ±
0.3, therefore, because the inflow temperature detected has exceeded the upper limit of setting inflow temperature, therefore control motor-driven valve 5 reduces aperture
To reduce return water temperature, due to lower limit of the temperature difference less than the poor scope of design temperature detected, therefore the reduction of water pump 4 is controlled to turn
Speed improves temperature difference.
, therefore, can also relating to the adjustment of rotational speed of water pump 4 because inflow temperature had both been relevant to the adjustment of the aperture of motor-driven valve 5
Regulated efficiency is improved with the adjustment frequency for the aperture adjustment for considering to increase motor-driven valve 5, increase Adjustment effect (or perhaps control
Effect).
Therefore, the thermal balance unit allocation method of first embodiment of the invention, controller 6 carries out the adjustment frequency of aperture adjustment
Rate is at least being not less than the adjustment frequency for carrying out adjustment of rotational speed, and the adjustment frequency of such as aperture adjustment can be the tune of adjustment of rotational speed
The 1-3 multiples of whole frequency, the adjustment frequency of aperture adjustment is, for example, 0.2-1 beats/min, and the adjustment frequency of adjustment of rotational speed is, for example,
0.1-0.5 beats/min, it is preferred that the adjustment frequency of aperture adjustment is 0.2 beat/min, the adjustment frequency of adjustment of rotational speed is 0.1
Beat/min.In the case of frequency identical, aperture adjustment is preferably first carried out, then carry out adjustment of rotational speed；For example adjust frequency all
, then can be in the 0.5-2 minutes before carrying out adjustment of rotational speed in the case of being 0.1 beat/min (namely adjusting 1 time for 10 minutes)
(preferably 1 minute) carries out an aperture adjustment, to reduce the number of times of adjustment of rotational speed, saves the energy, increases thermal balance unit
Stability.But the invention is not limited in this, the adjustment frequency of aperture adjustment can be greater than, equal to or less than adjustment of rotational speed
Adjust frequency.
When specifically carrying out aperture adjustment and adjustment of rotational speed, controller 6 can control the water pump by pid control mode
The aperture of 4 rotating speed and the motor-driven valve 5, its pid control parameter can pass through man-machine interface (Human Machine
Interface, abbreviation HMI) control or telecommunication modify.
Control method embodiment 2
The control method of the thermal balance unit of the present invention, mutually can also be closed closely between the adjustment of its aperture and adjustment of rotational speed
Connection, namely on the basis of embodiment 1, it is related to motor-driven valve 5 and the progress joint regulation of water pump 4, namely the adjustment of rotational speed of water pump 4
Motor-driven valve 5 aperture adjustment, and the aperture of motor-driven valve 5 adjustment mutually cut out the pump 4 adjustment of rotational speed.
And, can opening " formal " in order to shorten the time that the mixture circulatory system in thermal balance unit reaches stable state
Progress aperture is presetting before degree adjustment, and it is presetting to carry out aperture before the aperture adjustment of " formal ".Therefore, in each adjustment week
In phase, aperture adjustment, presetting rotating speed, adjustment of rotational speed and each presetting step of aperture are carried out successively, is moved in circles.
And carry out that rotating speed is presetting as follows with the presetting condition of aperture, first, presetting rotating speed is that basis is carried out as follows judgement：
1st, when water pump 4 is in stable state, that is, the temperature difference detected is in the poor scope of design temperature, and water pump 4 is without carrying out
During adjustment of rotational speed：
Adjusted according to the aperture of motor-driven valve, do presetting, the presetting width that positive (or in the same direction) is adjusted to relative to aperture
Spend and adjust amplitude for 50%* apertures.Aperture adjustment amplitude is that the maximum of this opening value and motor-driven valve 5 that are increasedd or decreased is opened
The ratio of degree.Forward and reverse mentioned here, refer to previous aperture adjust direction it is identical or in opposite direction, be with
" aperture increasing " is that direction is identical with " faster rotational speed ", if the i.e. aperture increase of motor-driven valve 5, the rotating speed of water pump 4, which is increased, is
Forward direction, it is reverse that the rotating speed of water pump 4, which reduces,；Conversely, if the aperture of motor-driven valve 5 reduces, the rotating speed of water pump 4 reduce be relative to
Aperture is adjusted to positive presetting, and it is to be adjusted to reverse presetting relative to aperture that the rotating speed of water pump 4, which is increased,.
2nd, when the temperature difference detected is not in the poor scope of design temperature, water pump 4 need to do positive tune according to the method for embodiment 1
When whole：
Adjusted according to previous aperture, the rotating speed for doing forward direction is presetting, the width that the aperture that presetting amplitude is 50% is adjusted
Degree.Herein, it is the amplitude proportional that adjusts aperture, is converted into the rotational speed regulation ratio of water pump.
In embodiment 1, the aperture adjustment of motor-driven valve 5 and the adjustment of rotational speed of water pump 4 are carried out in accordance with different adjustment frequencies
, in the present embodiment, increase rotating speed it is presetting it is presetting with aperture after, it is possible to happens is that：After the completion of rotating speed is presetting, water
When pump has arrived the adjustment of rotational speed of " formal ", it is likely that need not have adjusted.Then the aperture of motor-driven valve 5 is normally carried out adjusting again
Save (stable state may also have been reached, motor-driven valve 5 need not temporarily have adjusted again), reciprocation cycle.
3rd, when the temperature difference detected is not in the poor scope of design temperature, water pump 4 need to do reverse tune according to the method for embodiment 1
When whole, rotating speed is not done presetting.
More than each step in, if aperture adjustment need not be carried out and aperture is presetting, the adjustment of rotational speed that individually carries out and
Rotating speed is presetting.
Meanwhile, aperture preconditioning is according to judgement is carried out as follows, and described Direct/Reverse is defined as above below：
1st, be in stable state when motor-driven valve (i.e. the inflow temperature of the second side of user's water inlet pipe 12 in the range of set water temperature,
Motor-driven valve 5 need not carry out aperture adjustment) when：
According to a preceding adjustment of rotational speed for water pump 4, the aperture for doing forward direction is presetting, and the amplitude of regulation is 50%* adjustment of rotational speed
Amplitude.The amplitude of adjustment of rotational speed is equal to the ratio of the knots modification of rotating speed and the maximum (top) speed of water pump 4.
2nd, the inflow temperature of the second side of user's water inlet pipe 12 is not in the range of set water temperature, and motor-driven valve 5 is according to embodiment 1
When method need to make the aperture adjustment of forward direction：
According to the adjustment of rotational speed of water pump 4, the aperture for doing forward direction is presetting, and the amplitude of regulation is the amplitude of 50%* adjustment of rotational speed.
3rd, the inflow temperature of the second side of user's water inlet pipe 12 is in the range of set water temperature, motor-driven valve 5 according to embodiment 1 side
When method need to do reverse aperture adjustment, aperture is not done presetting.
Described 50% above-mentioned ratio, it is not limited to 50% concrete numerical value, can be between 0-70%.
Control method embodiment 3
As shown in figure 3, the thermal balance unit allocation method of third embodiment of the invention, compared with first and second embodiment, electricity
Dynamic position of the valve 5 with water pump 4 on heat supplying pipeline is identical with the thermal balance unit allocation method of first embodiment of the invention.
Unlike, in the present embodiment, except outdoor temperature sensors T0, inflow temperature sensor T2 and return water temperature are passed
Outside sensor T3, the inflow temperature sensor for the inflow temperature for detecting its position is also provided with the first side of user's water inlet pipe 11
T1。
The benefit for setting inflow temperature sensor T1 is can to monitor the inflow temperature of the first side of user's water inlet pipe 11 at any time
Whether a steady temperature is maintained at any time, if it find that the inflow temperature at this changes, then should exclude extraneous bar in time
Part changes the influence to inflow temperature at this, to ensure the precise control of thermal balance unit allocation method of the present invention.
Meanwhile, the control device in the present embodiment also includes pressure sensor, specifically, including is arranged at user's water inlet
The first side of pipe 11 be used for detect its position water feeding pressure pressure sensor P1, be arranged at the side of user's water inlet pipe second
The pressure sensor P2 of 12 water feeding pressure for detecting its position and the use for being arranged on the second side of user's return pipe 22
In the pressure sensor P3 for the backwater hydraulic pressure for detecting its position.Set the advantage of pressure sensor to be, can supervise in real time
The water pressures surveyed in heat supplying pipeline, when occurring overpressure situation, manually or automatically mode can carry out release, with
Prevent hydraulic pressure too high and influence the normal operation of thermal balance unit.
In addition to above-mentioned difference, the thermal balance unit allocation method of third embodiment of the invention, the adjustment of its aperture, adjustment of rotational speed
Adjustment frequency, adjustment process etc., it is identical with the thermal balance unit allocation method of first and second embodiment, repeat no more.
Control method embodiment 4
As shown in figure 4, the thermal balance unit allocation method of fourth embodiment of the invention, compared with 3rd embodiment, water pump 4
Position on heat supplying pipeline is identical with the thermal balance unit allocation method of third embodiment of the invention, but in the present embodiment,
The position of motor-driven valve 5 is different from 3rd embodiment, and motor-driven valve 5 is provided in the first side of user's water inlet pipe 11.
In the present embodiment, temperature sensor is identical with 3rd embodiment with the setting and effect of pressure sensor.
In the present embodiment, controller 6 is when carrying out adjustment of rotational speed, and the temperature difference detected is still user's water inlet pipe the
The temperature difference of two sides 12 and the second side of user's return pipe 22, adjustment frequency, adjustment process to pump rotary speed etc., with first,
The thermal balance unit allocation method of two embodiments is identical, repeats no more.
From unlike above-mentioned three embodiment, in the present embodiment, because motor-driven valve 5 is provided in the side of user's water inlet pipe first
On 11, but it is still that the user detected by inflow temperature sensor T2 enters to carry out the correlated condition of the aperture adjustment of motor-driven valve 5
The change of the inflow temperature of the second side of water pipe 12.The temperature difference considered during the adjustment of rotational speed of water pump 5 is still user's water inlet pipe
The temperature difference of second side 12 and the second side of user's return pipe 22, therefore, in the present embodiment, the adjustment frequency that is adjusted for aperture and
It carries out adjustment of rotational speed adjustment frequency between relation, it is identical with preceding two embodiment.
Control method embodiment 5
As shown in figure 5, the thermal balance unit allocation method of fifth embodiment of the invention, the thermal balance machine with fourth embodiment
Group control method is compared, the thermal balance unit allocation side of position and fourth embodiment of the invention of the motor-driven valve 5 on heat supplying pipeline
Method is identical, but in the present embodiment, the position of water pump 4 is different from fourth embodiment, and water pump 4 is provided in user's return pipe first
Side 21.
In the present embodiment, temperature sensor is identical with first embodiment with the setting and effect of pressure sensor.
In the present embodiment, controller 6 is when carrying out adjustment of rotational speed, although the position that water pump 4 is set is varied from, but institute
The temperature difference of detection is still the temperature difference of the side of user's water inlet pipe second and the side of user's return pipe second, and pump rotary speed is adjusted
Frequency, adjustment process etc. are adjusted, it is identical with the thermal balance unit allocation method of fourth embodiment, repeat no more.
In the present embodiment, because the position of motor-driven valve 5 does not change, therefore for aperture adjust adjustment process, adjustment
Frequency and its relation between the adjustment frequency of progress adjustment of rotational speed are identical with fourth embodiment.
Each embodiment of summary understands that the water pump 4 in thermal balance unit allocation method of the present invention can be arranged on user
The second side of water inlet pipe 12, can also be arranged on the second side of user's return pipe 22；And motor-driven valve 5, then it can both be arranged at user and enter
The first side of water pipe 11, can also be arranged on the first side of user's return pipe 21；And return water temperature sensor, then it can be arranged on user
The second side of return pipe 22, can also be arranged on the first side of user's return pipe 21.
Control device embodiment
As shown in fig. 6, the thermal balance machine set control device of the embodiment of the present invention, including controller 6 and with the controller 6
The temperature sensor being connected and the motor-driven valve 5 and water pump 4 that are arranged on the heat supplying pipeline；Specifically, motor-driven valve 5 is connected
In the first side of user's water inlet pipe 11 or the first side of user's return pipe 12, and water pump 4 is connected to the second side of user's water inlet pipe 12, use
The second side of family return pipe 22 or bypass pipe 3.And controller 6 therein includes sensor assembly 60, remote communication module (or HMI
Module) 61, motor-driven valve control module 65, water pump control modules 64 and adjustment cycle and frequency control module 66：Wherein, it is long-range logical
Believe module 61 or man-machine interface (Human Machine Interface, abbreviation HMI) module 61.
Sensor assembly 60, to receive the temperature signal that the temperature sensor is detected, and sends electric valve control to
Molding block 65 and water pump control modules 64, for carrying out aperture adjustment and adjustment of rotational speed.In the present embodiment, the TEMP
Device includes the inflow temperature sensor T1 of the inflow temperature for detecting the first side of user's water inlet pipe 11, for detecting that user is intake
The inflow temperature sensor T2 of the inflow temperature of the second side of pipe 12, return water temperature for detecting the second side of user's return pipe 22
The return water temperature sensor T3 and outdoor temperature sensors T0 for detecting outdoor temperature.Sensor assembly 60 can also receive pressure
The pressure signal that sensor is perceived, pressure sensor includes being arranged at being used for where detecting its of the first side of user's water inlet pipe 11
The pressure sensor P1 of the water feeding pressure of position, be arranged at the second side of user's water inlet pipe 12 be used for detect entering for its position
The pressure sensor P2 of water hydraulic pressure and the backwater hydraulic pressure for being used to detect its position for being arranged on the second side of user's return pipe 22
Pressure sensor P3.
Motor-driven valve control module 65 includes aperture adjustment unit and the presetting unit of aperture, and water pump control modules 64 include rotating speed
Adjustment unit and the presetting unit of rotating speed, the presetting unit of rotating speed are carried out after aperture adjustment according to aperture adjustment unit to motor-driven valve 5
The temperature difference of inflow temperature and return water temperature is presetting to the rotating speed progress rotating speed of water pump 4, and the presetting unit of aperture is according to adjustment of rotational speed list
It is presetting to the aperture progress aperture of the motor-driven valve 5 that member carries out the inflow temperature after adjustment of rotational speed to water pump 4.
Adjustment cycle and frequency control module 66, are connected to remote communication module or HMI module 61, motor-driven valve control module
65 and water pump control modules 64, it is each described to control to carry out periodicity adjustment to the aperture of motor-driven valve 5 and the rotating speed of water pump 4
In cycle, aperture adjustment, the presetting unit of rotating speed are carried out by aperture adjustment unit successively and carry out that rotating speed is presetting, adjustment of rotational speed unit enters
It is presetting that row adjustment of rotational speed and the presetting unit of aperture carry out aperture.
Meanwhile, adjustment cycle and frequency control module 66 are also to control motor-driven valve control module 65 to the aperture of motor-driven valve 5
The adjustment frequency of adjustment is equal to or more than water pump control modules 64 to the adjustment frequency of the adjustment of rotational speed of water pump 4, for example, control aperture
The adjustment frequency of adjustment is 1-3 times of adjustment frequency of adjustment of rotational speed, and this multiple can by remote communication module or
HMI module 61 is modified.
Motor-driven valve control module 65, is connected to sensor assembly 60, remote communication module or HMI module 61 and adjustment cycle
And frequency control module 66, to control the aperture of the motor-driven valve 5 to adjust.Further, motor-driven valve control module 65 can be with
Including input block, judging unit, memory cell, control unit and output unit.When carrying out the aperture adjustment each time,
Input block receives the inflow temperature signal that sensor assembly 60 is inputted, and sends judging unit to；Memory cell is used to store
Represent the corresponding table of the corresponding relation for the outdoor temperature that the setting inflow temperature scope is detected with the temperature sensor；Sentence
The inflow temperature that disconnected unit is inputted with regard to input block, by searching the corresponding table that memory cell is stored, judges detection
Inflow temperature whether in the range of a setting inflow temperature, and will determine that result is sent to control unit；Control unit is received
The judged result of judging unit input, inflow temperature is higher than the upper limit of the setting inflow temperature scope, then generation control as described
Motor-driven valve 5 processed reduces the control signal of aperture, and inflow temperature is less than the lower limit of the set water temperature scope as described, then generation control
Motor-driven valve 5 processed increases the control signal of aperture, and the control signal generated is exported to motor-driven valve 5 via output unit；Far
Journey communication module or HMI module 61 can be used for remotely-or locally changing the control parameter for carrying out PID control for motor-driven valve 5.
The water pump control modules 64, are connected to sensor assembly 60, remote communication module or HMI module 61 and adjustment week
Phase and frequency control module 66, the adjustment of rotational speed to control the water pump 4.Further, with motor-driven valve control unit class seemingly
, water pump control modules 64 can include input block, judging unit, memory cell, control unit and output unit.Carrying out
Each time during the adjustment of rotational speed, input block receives the inflow temperature signal and return water temperature letter that sensor assembly 60 is inputted
Number, send judging unit to；Memory cell, which is used to store, represents what the poor scope of design temperature was detected with the temperature sensor
The corresponding table of the corresponding relation of the temperature difference of inflow temperature and return water temperature；Judging unit calculates the institute of the input block input
The temperature difference of inflow temperature and return water temperature is stated, by searching the corresponding table that memory cell is stored, judges what is calculated
The temperature difference of inflow temperature and return water temperature will determine that result is sent to control unit whether in the range of a set water temperature；
Control unit receives the judged result of judging unit input, and the temperature difference of inflow temperature and return water temperature is set higher than described as described
Determine the upper limit of temperature difference scope, then generation control water pump 4 increases the control signal of rotating speed, the temperature of such as inflow temperature and return water temperature
Degree difference is less than the lower limit of the poor scope of the design temperature, then generation control water pump 4 reduces the control signal of rotating speed, and will be generated
Control signal via output unit export feed pump 4；Remote communication module or HMI module 61 can be used for remotely-or locally repairing
Change the control parameter that PID control is carried out for water pump 4.
The thermal balance machine set control device of the embodiment of the present invention, can also have remote communication module and HMI module simultaneously.
Industrial applicibility
Present invention is primarily directed to the mixture circulatory system with automatic/hand/distance control mode, it can not only be controlled
The supply water temperature of terminal user processed, and the temperature difference of the return at user can be controlled；Temperature controlling range can be expanded simultaneously,
Reach optimum energy-saving effect.In order to reduce thermal loss, the electric energy of circulating pump is saved, the present invention is proposed flow and temperature control
Join together, such supply water temperature with outdoor temperature or reality thermal load demands and change, while flow correspondingly with
The temperature difference changes automatically, and a more economical heat balance system is built between heat source side and user terminal, can be become according to outdoor temperature
Change the heat demand amount that user is met with relatively low cost.The temperature difference (Δ T) of thermal balance unit inflow temperature and return water temperature is
Vital, if the temperature difference increase between inflow temperature and return water temperature, identical heat, which can be changed into, to be compared
Low flow.The present invention is advantageous in that maximized other of Δ T, and total fuel efficiency height of steam power plant, electrical efficiency are high, heated conveying
During needed for pumping energy it is low, reduce related distribution loss.Therefore, the present invention can be widely used in central heating
Deng field.
Claims (21)
1. a kind of thermal balance machine set control device, the heat supplying pipeline of the thermal balance unit includes user's water inlet pipe (1), user and returned
The first end connection heating unit of water pipe (2) and bypass pipe (3), user's water inlet pipe (1) and user's return pipe (2)
(S1), the second end connection terminal user (S2)；The thermal balance machine set control device include controller (6) and with the controller
(6) temperature sensor being connected and the motor-driven valve (5) and water pump (4) that are arranged on the heat supplying pipeline；It is characterized in that：
The controller (6) includes sensor assembly (60), motor-driven valve control module (65) and water pump control modules (64)；
The sensor assembly (60), to receive temperature signal that the temperature sensor detected and send to described electronic
Valve control module (65) and/or water pump control modules (64)；
The motor-driven valve control module (65), to control the aperture of the motor-driven valve (5) to adjust, motor-driven valve (5) connection
On user's water inlet pipe (1) or user's return pipe (2), the motor-driven valve control module (65) adjusts the motor-driven valve (5)
Inflow temperature to set water temperature of the aperture to adjust the side (12) of user's water inlet pipe (1) second in the range of；
The water pump control modules (64), the adjustment of rotational speed to control the water pump (4) is examined with adjusting the temperature sensor
The temperature difference of the inflow temperature measured and the return water temperature of user's return pipe (2) is extremely set in temperature range；
Wherein, the aperture adjustment of the related motor-driven valve of the adjustment of rotational speed, the aperture adjusts the rotating speed of the related water pump
Adjustment；
Wherein, the motor-driven valve control module includes aperture adjustment unit and the presetting unit of aperture, the water pump control modules bag
Adjustment of rotational speed unit and the presetting unit of rotating speed are included, the presetting unit of rotating speed is according to the aperture adjustment unit to the motor-driven valve
Carry out the inflow temperature after aperture adjustment and rotating speed is carried out to the rotating speed of the water pump with the temperature difference of the return water temperature
Presetting, the presetting unit of aperture enters water temperature according to being carried out to the water pump after adjustment of rotational speed the adjustment of rotational speed unit
The aperture progress aperture spent to the motor-driven valve is presetting.
2. thermal balance machine set control device as claimed in claim 1, it is characterised in that the controller also includes the adjustment cycle
And frequency control module (66), to control to carry out periodicity adjustment to the aperture of the motor-driven valve and the rotating speed of the water pump, often
In cycle described in one, aperture adjustment, the presetting unit of rotating speed are carried out by aperture adjustment unit successively and carry out that rotating speed is presetting, adjustment of rotational speed
Unit carries out adjustment of rotational speed and the presetting unit progress aperture of aperture is presetting.
3. thermal balance machine set control device as claimed in claim 1, it is characterised in that the temperature sensor includes being used to examine
Survey the inflow temperature sensor (T2) of the inflow temperature of the side (12) of user's water inlet pipe (1) second and described for detecting
The return water temperature sensor (T3) of the return water temperature of user's return pipe (2).
4. thermal balance machine set control device as claimed in claim 3, it is characterised in that the temperature sensor also includes being used for
The outdoor temperature sensors (T0) of outdoor temperature are detected, the setting temperature range is detected with the outdoor temperature sensors (T0)
The outdoor temperature arrived is corresponding, the family that the setting inflow temperature scope is detected with the outdoor temperature sensors (T0)
Outer temperature is corresponding.
5. thermal balance machine set control device as claimed in claim 1, it is characterised in that the controller (6) is integrated in described
On water pump (4) or the motor-driven valve (5).
6. thermal balance machine set control device as claimed in claim 1, it is characterised in that the controller (6) also includes long-range
Communication module and/or HMI module (61).
7. thermal balance machine set control device as claimed in claim 4, it is characterised in that the return water temperature sensor (T3) sets
It is placed in the side of user's return pipe second (22).
8. thermal balance machine set control device as claimed in claim 1, it is characterised in that the water pump (4) is arranged at the use
The side of family water inlet pipe second (12), the motor-driven valve (5) is arranged at the side of user's return pipe first (21).
9. thermal balance machine set control device as claimed in claim 1, it is characterised in that the motor-driven valve (5) is arranged at described
The side of user's water inlet pipe first (11), the water pump (4) is arranged at the side of user's water inlet pipe second (12).
10. thermal balance machine set control device as claimed in claim 1, it is characterised in that the water pump (4) is integral type or divided
Body formula variable frequency pump (4).
11. thermal balance machine set control device as claimed in claim 1, it is characterised in that the thermal balance unit also includes pressure
Force snesor, the pressure sensor includes being used to detect the first pressure of the water feeding pressure of the side of user's water inlet pipe first (11)
The second pressure sensor of force snesor (P1), the second water feeding pressure for detecting the side of user's water inlet pipe second (12)
(P2) and for the 3rd pressure sensor (P3) of the backwater hydraulic pressure for detecting the side of user's return pipe second (22).
12. a kind of thermal balance unit, it is characterised in that there is the thermal balance unit any described heat of claim 1-11 to put down
Weigh machine set control device.
13. a kind of thermal balance unit allocation method, the thermal balance unit includes heat supplying pipeline and control device, the heating tube
Road includes user's water inlet pipe (1), user's return pipe (2) and bypass pipe (3)；The control device include controller (6) and with institute
The motor-driven valve (5) and water pump (4) stated controller (6) temperature sensor being connected and be arranged on the heat supplying pipeline；Institute
State the first end connection heating unit (S1) of user's water inlet pipe (1) and user's return pipe (2), the second end connection terminal user
(S2)；
It is characterized in that：
The motor-driven valve (5), is connected on user's water inlet pipe (1) or user's return pipe (2), controller (6) adjustment
In the range of inflow temperature to set water temperature of the aperture of the motor-driven valve (5) to adjust the side (12) of user's water inlet pipe (1) second；
The controller (6) adjust the rotating speed of the water pump (4) with adjust the temperature sensor detect described in enter water temperature
The temperature difference of degree and the return water temperature of user's return pipe (2) is extremely set in temperature range；
Wherein, the aperture adjustment of the related motor-driven valve of the adjustment of rotational speed of the water pump, the aperture adjustment of the motor-driven valve is related
The adjustment of rotational speed of the water pump；
Wherein, the adjustment to the electronic valve opening includes aperture adjustment and aperture is presetting, to the adjustment bag of the pump rotary speed
Include adjustment of rotational speed and rotating speed is presetting, wherein controller is according to the inflow temperature and the return water temperature after aperture adjustment
The temperature difference carry out that the rotating speed is presetting, it is presetting to carry out the aperture according to the inflow temperature after the adjustment of rotational speed.
14. thermal balance unit allocation method as claimed in claim 13, it is characterised in that the controller is to the motor-driven valve
Aperture and the rotating speed of the water pump carry out periodicity adjustment, in each cycle, aperture adjustment, rotating speed are carried out successively pre-
Tune, adjustment of rotational speed and aperture are presetting.
15. thermal balance unit allocation method as claimed in claim 13, it is characterised in that the presetting amplitude of the rotating speed is upper
The 0~70% of the amplitude that once aperture is adjusted, the presetting amplitude of the aperture is the amplitude of the last adjustment of rotational speed
0~70%.
16. thermal balance unit allocation method as claimed in claim 13, it is characterised in that in the inflow temperature and described time
The temperature difference of coolant-temperature gage turns not when setting in temperature range as described in need to carry out being adjusted to forward direction relative to the aperture
Velocity modulation is whole, then presetting without the rotating speed.
17. thermal balance unit allocation method as claimed in claim 16, it is characterised in that in the inflow temperature not in setting
When in temperature range, it is positive aperture adjustment that need to such as carry out relative to the adjustment of rotational speed, then without the aperture
It is presetting.
18. thermal balance unit allocation method as claimed in claim 17, it is characterised in that the temperature sensor includes being used for
The outdoor temperature sensors (T0) of outdoor temperature are detected, the setting temperature range is detected with the outdoor temperature sensors (T0)
The outdoor temperature arrived is corresponding, the family that the setting inflow temperature scope is detected with the outdoor temperature sensors (T0)
Outer temperature is corresponding.
19. thermal balance unit allocation method as claimed in claim 13, it is characterised in that the controller (6) is controlled by PID
Mode processed controls the rotating speed of the water pump (4) and the aperture of the motor-driven valve (5).
20. thermal balance unit allocation method as claimed in claim 18, it is characterised in that the center of the setting temperature range
Value is obtained by searching the mapping table of the poor scope central value of the outdoor temperature and the design temperature, not described right
The central value of the setting temperature range of the outdoor temperature in relation table is answered to pass through line by its neighbouring outdoor temperature value
Property interpolation and obtain.
21. thermal balance unit allocation method as claimed in claim 20, it is characterised in that the temperature range that sets is described
Set central value ± 0.3 or ± 0.5 of temperature range.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2012/084777 WO2014075303A1 (en) | 2012-11-16 | 2012-11-16 | Thermal equilibrium set and control method and control apparatus thereof |
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| Publication Number | Publication Date |
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| CN104769364A CN104769364A (en) | 2015-07-08 |
| CN104769364B true CN104769364B (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201280076473.9A Active CN104769364B (en) | 2012-11-16 | 2012-11-16 | Thermal balance unit and its control method and control device |
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| CN (1) | CN104769364B (en) |
| WO (1) | WO2014075303A1 (en) |
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| CN109028250B (en) * | 2018-07-13 | 2023-10-31 | 珠海格力电器股份有限公司 | Control method for controlling operation of heating system |
| CN109737485A (en) * | 2018-12-15 | 2019-05-10 | 阿诗丹顿燃具有限公司 | Combustion type heating system of water heater and its control device and method |
| CN111895487A (en) * | 2019-05-06 | 2020-11-06 | 萨姆森控制设备（中国）有限公司 | Controller, control method, cloud platform and intelligent thermal water mixing device |
| CN110173911A (en) * | 2019-06-27 | 2019-08-27 | 川田机械制造(上海)有限公司 | Novel cooling-water machine |
| CN112254352A (en) * | 2020-09-18 | 2021-01-22 | 华帝股份有限公司 | Water pump exhaust method for wall-mounted boiler |
| CN112286131B (en) * | 2020-10-23 | 2022-09-20 | 中国电子系统工程第二建设有限公司 | MAU control system and high-precision control method for MAU of electronic clean workshop |
| CN113606782B (en) * | 2021-07-30 | 2022-10-28 | 宁波奥克斯电气股份有限公司 | Variable frequency control method and device of heat pump unit, storage medium and heat pump unit |
| CN116839091B (en) * | 2023-05-15 | 2024-01-19 | 山东和同信息科技股份有限公司 | Heat exchange station automatic control parameter setting method based on deep learning |
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| CN104769364A (en) | 2015-07-08 |
| WO2014075303A1 (en) | 2014-05-22 |
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