WO2014075303A1 - 热平衡机组及其控制方法与控制装置 - Google Patents

热平衡机组及其控制方法与控制装置 Download PDF

Info

Publication number
WO2014075303A1
WO2014075303A1 PCT/CN2012/084777 CN2012084777W WO2014075303A1 WO 2014075303 A1 WO2014075303 A1 WO 2014075303A1 CN 2012084777 W CN2012084777 W CN 2012084777W WO 2014075303 A1 WO2014075303 A1 WO 2014075303A1
Authority
WO
WIPO (PCT)
Prior art keywords
adjustment
temperature
user
electric valve
opening degree
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/084777
Other languages
English (en)
French (fr)
Inventor
蒙让森⋅尼尔斯
顾群林
吴登昊
虞波
陈华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grundfos Holdings AS
Original Assignee
Grundfos Holdings AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grundfos Holdings AS filed Critical Grundfos Holdings AS
Priority to PCT/CN2012/084777 priority Critical patent/WO2014075303A1/zh
Priority to CN201280076473.9A priority patent/CN104769364B/zh
Priority to CN201320727574.XU priority patent/CN203586393U/zh
Priority to CN201320727677.6U priority patent/CN203586394U/zh
Publication of WO2014075303A1 publication Critical patent/WO2014075303A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the invention relates to a heating system, in particular to a heat balance unit and a control method and control device therefor. Background technique
  • the central heating system includes thermal equipment such as a thermal power plant for generating a heat source and a heating pipe network for delivering heat to the end user, and a heat balance unit is usually installed on the heating pipe network at the front end of the terminal user.
  • the mechanical structure of the heat balance unit for the heating system includes one end connected to the heating unit.
  • a bypass pipe 3 is installed between the user inlet pipe 1 and the user return pipe 2, and the left side of the bypass pipe 3 is adjacent to the heating unit S1, which is called the first side of the heat balance unit, and the bypass pipe 3 and its right side are close to the terminal.
  • the second side of the heat balance unit is the first side of the heat balance unit.
  • the intersection of the user inlet pipe 1 and the bypass pipe 3 can be defined as the first side 11 of the user inlet pipe and the second side 12 of the user inlet pipe; likewise, for the user return pipe 2 It may also be defined by the intersection of the user return pipe 2 and the bypass pipe 3, and is divided into a user return pipe first side 21 and a user return pipe second side 22.
  • a water pump 4 may be installed on the user inlet pipe 1, the user return pipe 2 or the bypass pipe 3 to provide a circulating power for the heat medium (hot water) to flow in the heat supply pipe.
  • a check valve 7 is also mounted on the bypass pipe 3, and an electric valve 5 is mounted on the first side 11 of the user inlet pipe or the first side 21 of the user return pipe.
  • the hot water from the heating unit is fed from the first side 11 of the user inlet pipe through the second side 12 of the user inlet pipe into the radiator of the end user S2 (not shown), and then flows into the user via the second side 22 of the user return pipe.
  • the radiator of the end user S2 may be flowed again through the bypass pipe 3 and the second side 12 of the user inlet pipe; or a part of the heating medium in the second side 22 of the user return pipe flows back to the heating unit S1, and the other part
  • the bypass pipe 3 and the second side 12 of the user inlet pipe flow again into the radiator of the end user S2 to participate in the circulating heat dissipation.
  • the heat loss of central heating usually occurs in the heating pipeline in the heat balance unit.
  • the important factor causing the heat loss is the hydraulic imbalance.
  • the hydraulic imbalance means the low temperature difference in the heating system ( ⁇ ⁇ , ie the inlet water temperature The temperature difference from the return water temperature) and the high flow rate, the heat exchange between the heat supply line and the environment causes a large amount of heat loss.
  • the prior art central heating heat balance unit does not effectively control the above situation.
  • the prior art method for controlling the heat balance unit only performs constant flow control, or only adjusts for the inlet water temperature or the return water temperature, and cannot simultaneously achieve energy saving and high comfort. Summary of the invention
  • an object of the present invention is to provide a heat balance unit control device that solves the technical problem that the prior art heat balance unit control device cannot simultaneously achieve energy saving and high efficiency.
  • Another object of the present invention is to provide a heat balance unit control method that solves the technical problem that the existing heat balance unit control method cannot simultaneously achieve energy saving and high efficiency.
  • the present invention adopts the following technical solutions:
  • a heat balance unit control device the heat supply line of the heat balance unit includes a user inlet pipe, a user return pipe and a bypass pipe, and the first end of the user inlet pipe and the user return pipe is connected to the heating unit, The two ends are connected to the end user;
  • the heat balance unit control device includes a controller and a temperature sensor connected to the controller, and an electric valve and a water pump disposed on the heating pipeline;
  • the controller includes a sensor module, and an electric motor a valve control module and a water pump control module: the sensor module is configured to receive a temperature signal detected by the temperature sensor and transmit the temperature signal to the electric valve control module and the water pump control module;
  • the electric valve control module is configured to control the The opening degree adjustment of the electric valve is connected to the user inlet pipe or the user return pipe, and the electric valve control module adjusts the opening degree of the electric valve to adjust the water inlet of the second side of the user inlet pipe
  • the temperature is within a set water temperature range;
  • the water pump control module is configured to control
  • the heat balance unit of the present invention has the heat balance unit control device of the present invention.
  • a heat balance unit control method the heat balance unit includes a heat supply line and a control device, the heat supply line includes a user inlet pipe, a user return pipe, and a bypass pipe;
  • the control device includes a controller and the a temperature sensor connected to the controller and an electric valve and a water pump disposed on the heating pipe; a first end of the user inlet pipe and the user return pipe is connected to the heating unit, and the second end is connected to the end user;
  • the electric valve is connected to the user inlet pipe or the user return pipe, and the controller adjusts the opening degree of the electric valve to adjust the inlet water temperature of the second side of the user inlet pipe to the set water temperature range;
  • the controller adjusts a rotational speed of the water pump to adjust a temperature difference between the water inlet temperature detected by the temperature sensor and a return water temperature of the user return pipe to a set temperature difference range.
  • the present invention is mainly directed to a hybrid circulation system having an automatic/manual/remote control mode, which can control not only the end user but also the end user.
  • the water supply temperature and can control the temperature difference returned from the user; at the same time, the temperature control range can be expanded to achieve the best energy saving effect.
  • the present invention proposes to combine the flow rate and the temperature control so that the water supply temperature changes with the outdoor temperature or the actual heat load demand, and the flow rate automatically changes with the temperature difference accordingly, one A more economical heat balance system is established between the heat source end and the customer end, and can meet the user's heat demand at a lower cost according to the outdoor temperature change.
  • the temperature difference ( ⁇ ) between the inlet and outlet temperatures of the heat balance unit is critical. If the temperature difference between the inlet and return temperatures increases, the same amount of heat can be converted to a lower flow.
  • Other benefits of the present invention for maximizing ⁇ are that the thermal power plant has a high overall fuel efficiency, high electrical efficiency, low pumping energy required during heat transfer, and reduced associated distribution losses.
  • Figure 1 is a schematic view of a prior art heat balancer unit
  • FIG. 2 is a schematic view showing a control method of a heat balance unit according to a first embodiment of the present invention
  • Figure 3 is a schematic view showing a control method of a heat balance unit according to a third embodiment of the present invention.
  • Figure 4 is a schematic view showing a control method of a heat balance unit according to a fourth embodiment of the present invention.
  • Figure 5 is a schematic view showing a control method of a heat balance unit according to a fifth embodiment of the present invention.
  • Fig. 6 is a schematic view of a heat balance unit control device according to an embodiment of the present invention. detailed description
  • the heat balance unit of the embodiment of the invention has the heat balance unit control device of the embodiment of the invention, and the heat balance unit control method of the embodiment of the invention is used for controlling the opening degree and the rotation speed.
  • the heat balance unit of each embodiment of the present invention may be used for heating control of one or several residential buildings.
  • Control method embodiment 1
  • the heat balance unit of the example includes a heating pipe and a control device, and the heating pipe includes a user inlet pipe 1, a user return pipe 2, and a bypass pipe 3.
  • the bypass pipe can be bypassed
  • the intersection of the tubes 3 is bounded and divided into a user inlet pipe first side 11 and a user inlet pipe second side 12, a user return pipe first side 21 and a user return pipe second side 22.
  • the first end of the user inlet pipe 1 and the user return pipe 2 is connected to the heating unit S1, and the second end is connected to the end user S2.
  • the control device comprises a controller 6, a temperature sensor, an electric valve 5 and a water pump 4.
  • the water pump 4 is preferably a variable frequency water pump, and the speed can be adjusted, for example, a Magna electronic pump (Magna) or a TPE electronic pump, and the frequency conversion component of the water pump 4 can be set in the water pump 4 body of the heating pipeline or can be set.
  • the water pump 4 can be either an integrated variable frequency water pump or a split type variable frequency water pump.
  • the temperature sensor is coupled to the controller 6, and returns the detected temperature data to the controller 6.
  • the temperature sensor includes an inlet water temperature sensor T2, a return water temperature sensor ⁇ 3, and an outdoor temperature sensor TO for detecting the inlet water temperature, the return water temperature, and the outdoor temperature, respectively.
  • the inlet water temperature sensor T2 is disposed on the second side 12 of the user inlet pipe
  • the return water temperature sensor T3 is disposed on the second side 22 of the user return pipe
  • the outdoor temperature sensor TO is disposed outdoors to detect the actual outdoor temperature.
  • the water pump 4 is connected to the user inlet pipe 1, specifically to the second side 12 of the user inlet pipe, and the control method of the heat balance unit of the first embodiment of the present invention is mainly embodied in the control device.
  • the rotational speed adjustment of the water pump 4 and the opening degree adjustment of the electric valve 5 are performed.
  • the relevant condition for adjusting the rotational speed of the water pump 4 of the present invention is the change in the temperature difference between the inlet water temperature and the return water temperature.
  • the electric valve 5 is provided in the user return pipe 2, specifically, on the first side 21 of the user return pipe, the condition for performing the opening degree adjustment is the change in the inlet water temperature detected by the inlet water temperature sensor T2.
  • the return water temperature sensor T3 is also possible to set the return water temperature sensor T3 on the first side 21 of the user return pipe to detect the return water temperature.
  • the above temperature difference change and the return water temperature change are adjusted after a set temperature difference range or a set inlet water temperature range is exceeded; and the adjustment is performed in two cases, one is over setting
  • the temperature difference range is set or the upper limit of the inlet water temperature range is set, and the other is lower than the set temperature difference range or the lower limit of the set inlet water temperature range.
  • the set temperature difference range or the set inlet water temperature range is formed by floating the center value of the set temperature difference and the set inlet water temperature value by ⁇ 0.1 to ⁇ 1, for example, setting the temperature difference center value and setting It is formed by setting ⁇ 30 or ⁇ 0.5 of the center temperature of the inlet water.
  • the set temperature difference center value and the set inlet water temperature center value are both related to the outdoor temperature.
  • the present invention is directed to the prior art that only the flow constant control is performed, or only for the water inlet.
  • the temperature or the return water temperature is adjusted to avoid the defects of energy saving and high efficiency at the same time.
  • the speed of the water pump 4 is adjusted according to the central value of the temperature difference between the corresponding inlet water temperature and the return water temperature.
  • the opening degree of the electric valve 5 is adjusted according to the corresponding center value of the return water temperature to adjust the flow rate in the heating pipe.
  • the above two correspondences may be stored by the controller in a corresponding relationship table or a corresponding relationship curve (function) obtained through a plurality of experiments in advance, and when the adjustment is made, the outdoor temperature transmitted by the outdoor temperature sensor TO is passed.
  • the manner in which the above correspondence table is searched or obtained by the corresponding relationship curve (function) is obtained. It is also possible to use a combination of look-up tables and calculations.
  • the case applicable in Table 1 is a case where the heating area is 7500 m 2 and the heat load is referred to as I m 2 .
  • the inlet water temperature of the first side 1 1 of the user inlet pipe is always controlled by external conditions, and since there is only one return water temperature sensor T3, the user returns the water pipe first.
  • the return water temperature in side 21 and the return water temperature in the second side 22 of the user return pipe are also considered equal. It can be seen from Table 1 that the temperature difference between the inlet water temperature and the return water temperature on the first side increases as the outdoor temperature increases, and the temperature difference between the inlet water temperature and the return water temperature on the second side is below 4 °C. It increases as the outdoor temperature increases.
  • the number of rows in the above lookup table is limited.
  • some outdoor temperature values may not be stored in the above lookup table.
  • the accuracy of Table 1 is taken as an example, and the outdoor temperature value is 2 ° C. -3 °C does not appear in Table 1, then the interpolation method can be used to determine the outdoor temperature value of 2 °C by one-time interpolation (ie linear interpolation) at 0 ° C and 4 ° C at both ends.
  • the inlet temperature of the second side is 64 ° C
  • the ⁇ t of the second side is 29.5 ° C
  • the inlet temperature of the second side corresponding to the outdoor temperature value -3 ° C is 66.5 ° C.
  • At 26 °C.
  • methods such as quadratic interpolation can also be used.
  • the controller 6 determines whether the inlet water temperature detected by the inlet water temperature sensor T2 is within the set inlet water temperature range in Table 1, if the detected inlet water temperature is higher than Setting the upper limit of the inlet water temperature range, the controller 6 controls the electric valve 5 to decrease the opening degree. If the detected inlet water temperature is lower than the lower limit of the set inlet water temperature range, the controller 6 controls the electric valve. 5 Increase the opening degree; the specific increase range can be determined by the actual situation.
  • the controller 6 determines whether the difference between the inlet water temperature detected by the inlet water temperature sensor T2 and the return water temperature detected by the return water temperature sensor T3 is set in Table 1. Within the temperature difference range, if the difference between the inlet water temperature and the return water temperature is higher than the upper limit of the set temperature difference range, the controller 6 controls the water pump 4 to increase the rotation speed; if the difference is lower than the lower limit of the set temperature difference range, the water pump 4 is controlled. Reduce the speed, the specific adjustment range is also determined by the specific circumstances.
  • the temperature detected by the temperature sensor is 75 °C
  • the return water temperature is 64 °C
  • the outdoor temperature is -16 °C
  • the temperature difference range and the return water temperature range take the center value ⁇ 0.3 as an example, due to the detected
  • the temperature difference is IC
  • the look-up table shows that the outdoor temperature is -16 °C corresponding to the set inlet temperature range of 73 °C ⁇ 0.3, the corresponding set temperature difference range is 13 °C ⁇ 0.3, therefore, due to detection
  • the incoming water temperature exceeds the upper limit of the set inlet water temperature, so the control electric valve 5 reduces the opening degree to lower the return water temperature, and since the detected temperature difference is lower than the lower limit of the set temperature difference range, the water pump 4 is controlled Reduce the speed to increase the temperature difference.
  • the inlet water temperature is related to the adjustment of the opening degree of the electric valve 5 and the rotation speed adjustment of the water pump 4, it is conceivable to increase the adjustment frequency of the opening degree adjustment of the electric valve 5 to improve the adjustment efficiency and increase the adjustment effect (or Said to be the control effect).
  • the controller 6 performs the adjustment of the opening degree adjustment.
  • the frequency is at least not lower than the adjustment frequency for adjusting the speed.
  • the adjustment frequency of the opening adjustment may be 1-3 times the adjustment frequency of the rotation speed adjustment, and the adjustment frequency of the opening adjustment is, for example, 0.2-1 times/minute, the rotation speed adjustment.
  • the adjustment frequency is, for example, 0.1 to 0.5 times/min.
  • the adjustment frequency of the opening adjustment is 0.2 times/min
  • the adjustment frequency of the rotation speed adjustment is 0.1 times/min.
  • the opening degree In the case of the same frequency, it is better to adjust the opening degree first, and then adjust the rotation speed; for example, if the adjustment frequency is 0.1 times/min (that is, the adjustment is performed once every 10 minutes), it can be adjusted before the rotation speed is adjusted. 0.5-2 minutes (preferably 1 minute) An opening adjustment is made to reduce the number of speed adjustments, save energy, and increase the stability of the heat balance unit.
  • the adjustment frequency of the opening degree adjustment may be greater than, equal to, or smaller than the adjustment frequency of the rotation speed adjustment.
  • the controller 6 can control the rotation speed of the water pump 4 and the opening degree of the electric valve 5 through a PID control mode, and the PID control parameter can pass through a human machine interface (Human Machine Interface, Referred to as HMI) Control or remote communication to modify.
  • HMI Human Machine Interface
  • the opening degree adjustment and the speed adjustment can also be closely related to each other, that is, based on the first embodiment, the electric valve 5 and the water pump 4 are jointly adjusted, that is, the water pump 4
  • the rotational speed adjusts the opening degree adjustment of the electric valve 5, and the opening degree of the electric valve 5 adjusts the rotational speed of the associated water pump 4.
  • the opening pre-adjustment can be performed before the "official” opening adjustment, and the opening pre-adjustment is performed before the "official” opening adjustment. Therefore, in each adjustment cycle, the steps of the opening adjustment, the rotational speed pre-adjustment, the rotational speed adjustment, and the opening pre-adjustment are sequentially performed, and the cycle is repeated.
  • the conditions for pre-adjusting the speed and pre-adjusting the opening are as follows. First, the pre-adjustment of the speed is judged as follows: 1. When the water pump 4 is in the steady state, that is, the detected temperature difference is within the set temperature difference range, When the pump 4 does not need to adjust the speed:
  • the pre-adjustment is adjusted to the positive (or the same direction) relative to the opening degree, and the pre-adjustment amplitude is 50% * the opening adjustment range.
  • the opening degree adjustment range is a ratio of the opening degree value that is increased or decreased this time to the maximum opening degree of the electric valve 5.
  • the forward and reverse directions mentioned here mean the same direction or opposite direction as the previous opening degree adjustment, and the direction is the same as the "opening degree increase" and the "speed increase speed", that is, if the electric valve 5 is opened
  • the degree is increased, the rotation speed of the water pump 4 is increased in the forward direction, and the rotation speed of the water pump 4 is decreased.
  • the rotation speed of the water pump 4 is decreased to be positive with respect to the opening degree.
  • the increase in the rotational speed of the water pump 4 is a pre-adjustment adjusted in the opposite direction to the opening degree. 2.
  • the forward speed is pre-adjusted, and the pre-adjustment amplitude is 50% of the degree of opening adjustment.
  • the ratio of the amplitude of the opening adjustment is converted into the speed adjustment ratio of the water pump.
  • the opening degree adjustment of the electric valve 5 and the rotation speed adjustment of the water pump 4 are performed in accordance with different adjustment frequencies.
  • the speed presetting and the opening presetting are increased, it is possible that: When the speed pre-tuning is completed, the pump may not need to be adjusted when it is in the "official" speed adjustment. Then, the opening degree of the electric valve 5 is normally adjusted (it may have reached the steady state, and the electric valve 5 does not need to be adjusted again), and the cycle is repeated.
  • the opening pre-adjustment is judged as follows.
  • the definition of forward and reverse is as follows: 1.
  • the electric valve is in steady state (ie, the inlet temperature of the second side 12 of the user inlet pipe is at the set water temperature)
  • the electric valve 5 does not need to be adjusted for opening):
  • the positive opening pre-adjustment is made, and the adjustment range is 50% * The speed adjustment range.
  • the magnitude of the speed adjustment is equal to the ratio of the amount of change in speed to the maximum speed of the pump 4.
  • the inlet water temperature of the second side of the user inlet pipe 12 is not within the set water temperature range, and the electric valve 5 needs to be adjusted in the positive opening degree according to the method of the first embodiment:
  • the positive opening pre-adjustment is made, and the adjustment range is 50% * The amplitude of the speed adjustment.
  • the inlet water temperature of the second side 12 of the user inlet pipe is within the set water temperature range.
  • the above 50% ratio is not limited to a specific value of 50%, and may be between 0 and 70%.
  • the position of the electric valve 5 and the water pump 4 on the heat supply pipe and the heat balance of the first embodiment of the present invention are compared with the first and second embodiments.
  • the unit control method is the same. The difference is that, in the embodiment, in addition to the outdoor temperature sensor T0, the inlet water temperature sensor ⁇ 2 and the return water temperature sensor ⁇ 3, the first inlet side 1 1 of the user inlet pipe is also provided with the inlet water temperature for detecting the position thereof. Inlet water temperature sensor Tl.
  • the advantage of setting the inlet water temperature sensor T1 is that it can monitor whether the inlet water temperature of the first side 11 of the user inlet pipe is maintained at a constant temperature at any time. If the inlet water temperature is found to change, the external condition change should be promptly eliminated. The influence of the inlet water temperature on this is to ensure the control accuracy of the control method of the heat balance unit of the present invention.
  • control device in this embodiment further includes a pressure sensor, and specifically includes a pressure sensor P1 disposed on the first side 1 1 of the user inlet pipe for detecting the water pressure of the inlet water at the position of the user, and is disposed in the user.
  • the advantage of setting the pressure sensor is that the water pressure in the heating pipeline can be monitored in real time. When an overpressure occurs, the pressure can be relieved manually or automatically to prevent the water pressure from being too high and affecting the normality of the heat balance unit. run.
  • control method of the heat balance unit according to the third embodiment of the present invention the opening degree adjustment, the adjustment frequency of the rotation speed adjustment, the adjustment process, and the like are the same as the heat balance unit control methods of the first and second embodiments, and will not be described again. .
  • the position of the water pump 4 on the heat supply pipe is the same as that of the heat balance unit according to the third embodiment of the present invention, but compared with the third embodiment.
  • the position of the electric valve 5 is different from that of the third embodiment, and the electric valve 5 is disposed on the first side 11 of the user inlet pipe.
  • the arrangement and action of the temperature sensor and the pressure sensor are the same as those of the third embodiment.
  • the detected temperature difference is still the temperature difference between the second side 12 of the user inlet pipe and the second side 22 of the user return pipe, and the adjustment frequency and adjustment process of the pump speed. And the like, which are the same as the heat balance unit control methods of the first and second embodiments, and will not be described again.
  • the relevant condition for adjusting the opening degree of the electric valve 5 is still the inlet water temperature sensor ⁇ 2.
  • the temperature difference considered when the rotational speed of the water pump 5 is adjusted is still the temperature difference between the second side 12 of the user inlet pipe and the second side 22 of the user return pipe. Therefore, in this embodiment, The relationship between the adjustment frequency of the opening degree adjustment and the adjustment frequency for performing the rotation speed adjustment is the same as that of the previous two embodiments.
  • the heat balance unit control method according to the fifth embodiment of the present invention is compared with the heat balance unit control method of the fourth embodiment, the position of the electric valve 5 on the heat supply line and the heat balance of the fourth embodiment of the present invention.
  • the unit control method is the same, but in the present embodiment, the position of the water pump 4 is different from that of the fourth embodiment, and the water pump 4 is disposed on the first side 21 of the user return pipe.
  • the arrangement and action of the temperature sensor and the pressure sensor are the same as those of the first embodiment.
  • the controller 6 performs the speed adjustment, although the position of the water pump 4 is changed, the detected temperature difference is still the temperature difference between the second side of the user inlet pipe and the second side of the user return pipe.
  • the adjustment frequency, the adjustment process, and the like of the pump speed adjustment are the same as those of the heat balance unit of the fourth embodiment, and will not be described again.
  • the water pump 4 in the control method of the heat balance unit of the present invention may be disposed on the second side 12 of the user inlet pipe or on the second side 22 of the user return pipe; and the electric valve 5 may be set.
  • the first side of the user inlet pipe 1 1 may also be disposed on the first side 21 of the user return pipe; and the return water temperature sensor may be disposed on the second side 22 of the user return pipe, or may be disposed on the first side of the user return pipe twenty one.
  • the heat balance unit control device of the embodiment of the present invention includes a controller 6 and a temperature sensor connected to the controller 6 and an electric valve 5 and a water pump 4 disposed on the heating pipeline;
  • the electric valve 5 is connected to the user inlet pipe first side 1 1 or the user return pipe first side 12, and the water pump 4 is connected to the user inlet pipe second side 12, the user return pipe second side 22 or the bypass pipe 3.
  • the controller 6 includes a sensor module 60, a remote communication module (or HMI module) 61, an electric valve control module 65, a water pump control module 64, and an adjustment period and frequency control module 66: wherein the remote communication module 61 can also be a human machine Interface (Human Machine Interface, HMI for short) module 61.
  • HMI Human Machine Interface
  • the sensor module 60 is configured to receive the temperature signal detected by the temperature sensor and transmit it to the electric valve control module 65 and the water pump control module 64 for performing opening degree adjustment and speed adjustment.
  • the temperature sensor includes an inflow temperature sensor T1 for detecting the inlet water temperature of the first inlet 1 1 of the user inlet pipe, and an inlet water temperature sensor 2 for detecting the inlet water temperature of the second side 12 of the user inlet pipe, for detecting The return water temperature sensor ⁇ 3 of the return water temperature of the second side 22 of the user return pipe and the outdoor temperature sensor ⁇ 0 for detecting the outdoor temperature.
  • the sensor module 60 can also receive a pressure signal sensed by the pressure sensor.
  • the pressure sensor includes a pressure sensor P1 disposed on the first side 11 of the user inlet pipe for detecting the water pressure of the inlet, and is disposed on the user inlet pipe second.
  • a pressure sensor ⁇ 2 of the side 12 for detecting the water pressure of the inlet water at the position thereof and a pressure sensor ⁇ 3 provided on the second side 22 of the user return pipe for detecting the return water pressure at the position thereof are provided.
  • the electric valve control module 65 includes an opening adjustment unit and an opening pre-adjustment unit.
  • the water pump control module 64 includes a rotation speed adjustment unit and a rotation speed pre-adjustment unit.
  • the rotation speed pre-adjustment unit adjusts the opening degree of the electric valve 5 according to the opening degree adjustment unit.
  • the temperature difference between the inlet water temperature and the return water temperature pre-adjusts the rotation speed of the water pump 4, and the opening degree pre-adjusting unit opens the opening degree of the electric valve 5 according to the inlet water temperature after the rotation speed adjustment unit adjusts the rotation speed of the water pump 4. Pre-adjustment.
  • the adjustment period and frequency control module 66 is connected to the remote communication module or the ⁇ module 61, the electric valve control module 65 and the water pump control module 64 to control the periodic adjustment of the opening degree of the electric valve 5 and the rotation speed of the water pump 4, each In the cycle, the opening degree adjustment unit performs the opening degree adjustment, the rotation speed pre-adjusting unit performs the rotation speed pre-adjustment, the rotation speed adjustment unit performs the rotation speed adjustment, and the opening degree pre-adjusting unit performs the opening degree pre-adjustment.
  • the adjustment period and frequency control module 66 is further configured to control the adjustment frequency of the electric valve control module 65 to adjust the opening degree of the electric valve 5 to be equal to or greater than the adjustment frequency of the water pump control module 64 to the rotation speed adjustment of the water pump 4, for example, the control opening degree adjustment.
  • the adjustment frequency is 1-3 times the adjustment frequency of the rotation speed adjustment, and this multiple can be modified by the remote communication module or the UI module 61.
  • the electric valve control module 65 is connected to the sensor module 60, the remote communication module or the cymbal module 61, and the adjustment period and frequency control module 66 for controlling the opening degree adjustment of the electric valve 5. Further, the electric valve control module 65 may include an input unit, a determination unit, a storage unit, a control unit, and an output unit.
  • the input unit receives the inflow temperature signal input by the sensor module 60 and transmits it to the judging unit during each of the opening degree adjustments;
  • the storage unit is configured to store the set influent temperature range and the temperature sensor detection a correspondence table of the correspondence relationship of the outdoor temperatures;
  • the determination unit determines whether the detected inlet water temperature is within a set inlet water temperature range by searching the correspondence table stored in the storage unit with respect to the inlet water temperature input by the input unit And sending the judgment result to the control unit;
  • the control unit receives the judgment result input by the judgment unit, and if the water inlet temperature is higher than the upper limit of the set inlet water temperature range, generating the control electric valve 5 to reduce the opening degree a control signal, if the inlet water temperature is lower than a lower limit of the set water temperature range, generating a control electric valve 5 to increase the opening degree
  • the control signal is output to the electric valve 5 via the output unit; the remote communication module or HMI module 61 can be used to remotely or locally modify the control parameters for PID control
  • the water pump control module 64 is connected to the sensor module 60, the remote communication module or the HMI module 61, and the adjustment period and frequency control module 66 for controlling the speed adjustment of the water pump 4. Further, similar to the electric valve control unit, the water pump control module 64 may include an input unit, a determination unit, a storage unit, a control unit, and an output unit.
  • the input unit receives the water inlet temperature signal and the return water temperature signal input by the sensor module 60 and transmits the signal to the determination unit; the storage unit is configured to store the temperature range indicating the set temperature difference and the temperature sensor.
  • the determination unit calculates a temperature difference between the inlet water temperature and the return water temperature input by the input unit, by searching for the storage unit Determining the correspondence table, determining whether the calculated temperature difference between the inlet water temperature and the return water temperature is within a set water temperature range, and transmitting the determination result to the control unit; the control unit receiving the judgment result input by the judgment unit, as described
  • the temperature difference between the water temperature and the return water temperature is higher than the upper limit of the set temperature difference range, and a control signal for controlling the increase of the rotational speed of the water pump 4 is generated, for example, the temperature difference between the inlet water temperature and the return water temperature is lower than the set temperature.
  • a control signal for controlling the water pump 4 to decrease the rotational speed is generated, and the generated control signal is outputted via the output list Output feed pump 4;
  • remote communication module or HMI module 61 may be used to modify the local or remote control parameters for the PID control of the pump 4.
  • the thermal balance unit control device of the embodiment of the invention may also have a remote communication module and an HMI module.
  • the invention mainly aims at a hybrid circulation system with automatic/manual/remote control mode, which can not only control the water supply temperature of the end user, but also control the temperature difference returned from the user; at the same time, the temperature control range can be expanded to achieve the best energy saving effect. .
  • the present invention proposes to combine the flow rate and the temperature control, so that the water supply temperature changes with the outdoor temperature or the actual heat load demand, and the flow rate automatically changes with the temperature difference accordingly, one A more economical heat balance system is established between the heat source end and the customer end, and can meet the user's heat demand at a lower cost according to the outdoor temperature change.
  • the temperature difference ( ⁇ ) between the inlet and outlet temperatures of the heat balance unit is critical. If the temperature difference between the inlet and return temperatures increases, the same amount of heat can be converted to a lower flow.
  • Other advantages of the present invention in maximizing ⁇ are that the thermal power plant has a high overall fuel efficiency, high electrical efficiency, low pumping energy required during heat transfer, and reduced associated distribution losses. Therefore, the present invention can be widely applied to fields such as central heating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

一种热平衡机组包括供热管路和控制装置，供热管路包括用户进水管（1）、用户回水管（2）和旁通管（3）；控制装置包括控制器（6）及与控制器（6）相连接的温度传感器以及设置在供热管路上的电动阀（5）和水泵（4）；用户进水管（1）和用户回水管（2）的第一端连接供热单元（S1），第二端连接终端用户（S2）；控制器（6）调整电动阀（5）开度的调整频率等于或大于控制器（6）调整水泵（4）转速的调整频率，控制器（6）判断温度传感器检测到的用户进水管（1）进水温度与用户回水管（2）的回水温度的温差是否在设定的温差范围内，如高于设定温差范围的上限时控制水泵增加转速，低于设定温度范围的下限时控制水泵降低转速。

Description

热平衡机组及其控制方法与控制装置 技术领域
本发明涉及供热系统， 尤其涉及一种热平衡机组及其控制方法与控制装置。 背景技术
集中供热系统包括用于产生热源的热电厂等热设备以及将热量输送到终端用户的供 热管网， 通常在终端用户前端的供热管网上安装有热平衡机组。
如图 1 所示， 用于供热系统的热平衡机组的机械结构部分包括一端连接于供热单元
S1 (或称热源， 例如自热电厂出来的供热管网） 、 另一端连接于终端用户 S2散热器的两 根供热管路， 一根为用户进水管 1， 一根为用户回水管 2， 在用户进水管 1与用户回水管 2 之间安装有旁通管 3， 旁通管 3左侧靠近供热单元 Sl， 称为热平衡机组的第一侧， 旁通管 3及其右侧靠近终端用户， 为热平衡机组的第二侧。
对于用户进水管 1来讲， 可以用户进水管 1与旁通管 3的交点为界， 划分为用户进水 管第一侧 11和用户进水管第二侧 12; 同样， 对于用户回水管 2来讲， 也可以用户回水管 2与旁通管 3的交点为界， 划分为用户回水管第一侧 21和用户回水管第二侧 22。
如图 1所示， 在用户进水管 1、 用户回水管 2或者旁通管 3上可安装有水泵 4， 以提 供供热介质 （热水） 在供热管路中流动的循环动力。 在旁通管 3上还安装有单向阀 7， 在 用户进水管第一侧 11或用户回水管第一侧 21安装有电动阀 5。 来自于供热单元的热水由 用户进水管第一侧 11经用户进水管第二侧 12进入终端用户 S2的散热器 （图中未示出） 散热后经用户回水管第二侧 22流入用户回水管第一侧 21， 在单向阀 7和电动阀 5的作用 下， 流入用户回水管第二侧 22 中的供热介质可以经用户回水管第一侧 21 流回供热单元 Sl， 也可以经旁通管 3、 用户进水管第二侧 12后再次流进终端用户 S2的散热器； 或者用 户回水管第二侧 22中的供热介质中的一部分流回供热单元 Sl， 另一部分经旁通管 3、 用 户进水管第二侧 12再次流进终端用户 S2的散热器， 参与循环散热。
然而， 传统的集中供热存在着巨大的能源浪费情况。 集中供热的热量损失通常发生在 热平衡机组中的供热管路， 造成热损失的重要因素是液力不平衡， 液力不平衡意味着供热 系统中低温差 （Δ Τ， 即进水温度与回水温度的温差） 和高流量， 供热管路与环境之间的 热交换造成了大量的热损耗。 然而， 现有技术的集中供热的热平衡机组， 并未针对上述情况进行有效控制。 现有技 术的热平衡机组控制方法， 只进行流量恒定控制， 或者只是针对进水温度或回水温度进行 调整， 而不能同时做到节能高效和提高舒适度。 发明内容
针对现有技术中存在的问题， 本发明的目的在于提供一种热平衡机组控制装置， 解决 现有技术的热平衡机组控制装置不能同时做到节能高效和提高舒适度的技术问题。
本发明的另一目的在于提供一种热平衡机组控制方法，解决现有的热平衡机组控制方 法不能同时做到节能高效和提高舒适度的技术问题。
本发明的目的还在于提供一种具有本发明热平衡机组控制装置的热平衡机组。
为实现上述目的， 本发明采用如下技术方案：
一种热平衡机组控制装置， 所述热平衡机组的供热管路包括用户进水管、用户回 水管和旁通管， 所述用户进水管和所述用户回水管的第一端连接供热单元， 第二端连 接终端用户；所述热平衡机组控制装置包括控制器及与所述控制器相连接的温度传感 器以及设置在所述供热管路上的电动阀和水泵； 所述控制器包括传感器模块、 电动阀 控制模块和水泵控制模块： 所述传感器模块， 用以接收所述温度传感器所检测的温度 信号并传送给所述电动阀控制模块和水泵控制模块； 所述电动阀控制模块， 用以控制 所述电动阀的开度调整， 所述电动阀连接在所述用户进水管或用户回水管上， 所述电 动阀控制模块调整所述电动阀的开度以调整用户进水管第二侧的进水温度至设定水 温范围内； 所述水泵控制模块， 用以控制所述水泵的转速调整， 以调整所述温度传感 器检测到的所述进水温度与所述用户回水管的回水温度的温差至设定温差范围内。
本发明的热平衡机组， 具有本发明的热平衡机组控制装置。
一种热平衡机组控制方法， 所述热平衡机组包括供热管路和控制装置， 所述供热 管路包括用户进水管、用户回水管和旁通管； 所述控制装置包括控制器及与所述控制 器相连接的温度传感器以及设置在所述供热管路上的电动阀和水泵；所述用户进水管 和所述用户回水管的第一端连接供热单元， 第二端连接终端用户； 所述电动阀， 连接 在所述用户进水管或用户回水管上，所述控制器调整所述电动阀的开度以调整用户进 水管第二侧的进水温度至设定水温范围内；所述控制器调整所述水泵的转速以调整所 述温度传感器检测到的所述进水温度与所述用户回水管的回水温度的温差至设定温 差范围内。 由上述技术方案可知，本发明的热平衡机组及其控制方法和控制装置的优点和积 极效果在于： 本发明主要致力于具有自动 /手动 /远程控制模式的混合循环系统， 其不 仅可以控制终端用户的供水温度， 而且可以控制从用户处返回的温差； 同时能够扩大 温度控制范围， 达到最佳节能效果。 为了减小热量损失， 节约循环水泵的电能， 本发 明提出将流量和温度控制联合起来，这样供水温度随着室外温度或实际的热负载需求 而变化， 同时流量相应地随着温差自动变化， 一个更经济的热平衡系统建立于热源端 与用户端之间， 能按照室外温度变化以较低的成本满足用户的热需求量。热平衡机组 进水温度和回水温度的温度差 （ΔΤ) 是至关重要的， 如果进水温度与回水温度之间 的温差增加的话， 相同的热量可以转化成比较低的流量。 本发明使 ΔΤ最大化的其他 好处在于， 热电厂的总燃油效率高、 电效率高、 热输送过程中所需的泵浦能量低， 降 低相关的配电损耗。
通过以下参照附图对优选实施例的说明， 本发明的上述以及其它目的、特征和优 点将更加明显。 附图说明
图 1是现有技术的热平衡机组的示意图；
图 2是本发明第一实施例的热平衡机组控制方法的示意图；
图 3是本发明第三实施例的热平衡机组控制方法的示意图；
图 4是本发明第四实施例的热平衡机组控制方法的示意图；
图 5是本发明第五实施例的热平衡机组控制方法的示意图；
图 6是本发明实施例的热平衡机组控制装置的示意图。 具体实施方式
下面将详细描述本发明的具体实施例。应当注意， 这里描述的实施例只用于举例 说明， 并不用于限制本发明。
本发明实施例的热平衡机组， 具有本发明实施例的热平衡机组控制装置， 采用本 发明实施例的热平衡机组控制方法进行开度与转速的控制。
本发明各实施例的热平衡机组， 可以是用于一座或几座居民楼的供热控制。 控制方法实施例 1
如图 2所示， 本发明第一实施例的热平衡机组控制方法， 其所应用的本发明实施 例的热平衡机组包括供热管路和控制装置， 所述供热管路包括用户进水管 1、 用户回 水管 2和旁通管 3， 对于用户进水管 1和用户回水管 2， 可以与旁通管 3的交点为界， 分别划分为用户进水管第一侧 11和用户进水管第二侧 12、 用户回水管第一侧 21和 用户回水管第二侧 22。 而用户进水管 1和用户回水管 2的第一端连接供热单元 Sl， 第二端连接终端用户 S2。而控制装置包括控制器 6、温度传感器、 电动阀 5和水泵 4。 水泵 4 优选的为变频水泵， 可以调节转速， 例如为马格纳电子泵 （Magna) 或 TPE 电子泵， 水泵 4的变频部件， 既可以设置在供热管路上的水泵 4本体内， 也可以设置 在控制器 6中， 因此水泵 4既可以为一体式变频水泵， 也可以是分体式变频水泵。
所述温度传感器， 连接于控制器 6， 向控制器 6回传所检测到的温度数据。 本实 施例中， 温度传感器包括进水温度传感器 T2、 回水温度传感器 Τ3和户外温度传感器 TO, 分别用于检测进水温度、 回水温度和户外温度。 其中， 进水温度传感器 T2设置 于用户进水管第二侧 12， 回水温度传感器 T3设置于用户回水管第二侧 22， 而户外 温度传感器 TO则设置于户外， 用于检测实际户外的温度。
本实施例中， 水泵 4连接在用户进水管 1上， 具体的说是连接在用户进水管第二 侧 12， 而本发明第一实施例的热平衡机组控制方法， 其控制装置的控制主要体现在 对水泵 4的转速调整和对电动阀 5的开度调整。而本发明对水泵 4的转速调整的相关 条件是进水温度和回水温度之间的温度差的变化。另外， 电动阀 5虽然设置在用户回 水管 2， 具体的说是在用户回水管第一侧 21， 但进行开度调整的相关条件是进水温度 传感器 T2所检测到的进水温度的变化。 当然， 也可以在用户回水管第一侧 21 设置 回水温度传感器 T3， 来检测回水温度。
而上述的温度差的变化和回水温度的变化，是在超出了一个设定温度差范围或设 定进水温度范围之后， 才进行调整； 并且分两种情况进行调整， 一种是超过设定温度 差范围或者设定进水温度范围的上限，另一种低于设定温度差范围或设定进水温度范 围的下限。而设定温度差范围或设定进水温度范围， 则是在设定温度差中心值和设定 进水温度中心值上下浮动 ± 0.1〜士 1而形成， 例如设定温度差中心值和设定进水温度 中心值的 ± 0.3或 ± 0.5而形成。
本发明实施例的热平衡机组控制方法，其设定温度差中心值和设定进水温度中心 值均与户外温度有关， 本发明就是鉴于现有技术中只进行流量恒定控制， 或者只是针 对进水温度或回水温度进行调整而不能同时做到节能高效和提高舒适度的缺陷，针对 不同户外温度，按照对应的进水温度和回水温度的温度差中心值来调整水泵 4的转速 以调节供热管路内的流速，按照对应的回水温度中心值来调整电动阀 5的开度以调节 供热管路内的流量。
上述的两个对应关系，可以由控制器存储的事先通过多次实验所获得的对应关系 表或者对应关系曲线 （函数） ， 在进行调整时， 对于户外温度传感器 TO所传来的户 外温度， 通过查找上述对应关系表的方式或者通过对应关系曲线（函数）来计算的方 式获得。 也可以采用查表与计算相结合的方式。
例如表 1所示的对应关系表。 表 1所适用的情况是供热面积为 7500m2， 热负荷 为謂 I m2的情形。
表 1
Figure imgf000007_0001
如表 1所示， 本实施例中， 首先通过外部条件， 控制用户进水管第一侧 1 1的进 水温度始终不变， 且由于回水温度传感器 T3只有一个， 因此， 用户回水管第一侧 21 中的回水温度和用户回水管第二侧 22中的回水温度也视为相等。 由表 1可知， 第一 侧的进水温度与回水温度的温度差随着户外温度的增加而增加，而第二侧的进水温度 与回水温度的温度差在 4 °C以下时是随着户外温度的增加而增加。
为了说明更清楚， 表 1中的行数较少、 字段较多， 但在控制器 6中， 只需要存储
"户外温度" 、 "第二侧的进水温度" 、 "第二侧的 At"等字段的查找表 （或曲线） 即可， 其中的 "第二侧的进水温度" ， 也即所要查找的设定进水温度中心值， 而 "第 二侧的 At" ， 则为所要查找的设定温度差范围的中心值。 检测到户外温度以后， 查 找该户外温度所对应的 "第二侧的 At" 和 "第二侧的进水温度" ， 来确定是否需要 调整。
当然， 上述的查找表的行数毕竟有限， 在进行查表时， 也许有些户外温度的数值 并未存储在上述的查找表中， 例如以表 1的精度为例， 户外温度值 2°C、 -3 °C未出现 在表 1 中， 则可通过插值的方法来由其两端的 0°C和 4°C通过一次方程插值 （即线性 插值）的方式来确定户外温度值 2°C所对应的第二侧的进水温度为 64°C， 第二侧的 Δ t为 29.5 °C， 户外温度值 -3 °C所对应的第二侧的进水温度为 66.5 °C， 第二侧的 At为 26°C。 为了提高精确度， 也可以采用二次插值等方法。
在具体进行电动阀 5的开度调整时， 控制器 6判断进水温度传感器 T2检测到的 进水温度是否在表 1中的设定进水温度范围内，如检测到的进水温度高于所述设定进 水温度范围的上限， 控制器 6控制电动阀 5减小开度， 如检测到的进水温度低于所述 设定进水温度范围的下限， 则控制器 6控制电动阀 5增大开度； 具体增大的幅度可由 实际情况确定。
在具体进行水泵 4的每一次转速调整时， 控制器 6判断进水温度传感器 T2检测 到的进水温度与回水温度传感器 T3检测到的回水温度的差值是否在表 1中的设定温 差范围内， 如进水温度与回水温度的差值高于设定温差范围的上限， 控制器 6控制所 述水泵 4增加转速； 如低于设定温差范围的下限， 控制所述水泵 4降低转速， 具体的 调整幅度也由具体情况确定。
以温度传感器检测到的进水温度为 75 °C、 回水温度为 64°C、 户外温度为 -16°C， 温度差范围和回水温度范围取中心值 ± 0.3为例， 由于检测到的温度差为 I C , 而查 表可知户外温度为 -16°C所对应的设定进水温度范围为 73 °C ± 0.3，对应的设定温度差 范围为 13 °C ± 0.3， 因此， 由于检测到的进水温度超过了设定进水温度的上限， 因此 控制电动阀 5减小开度来降低回水温度，由于检测到的温度差低于设定温度差范围的 下限， 因此控制水泵 4降低转速来提高温度差。
由于进水温度既相关于电动阀 5开度的调整，也相关于水泵 4的转速调整，因此， 可以考虑加大电动阀 5的开度调整的调整频率来提高调整效率， 增加调整效果（或者 说是控制效果） 。
因此， 本发明第一实施例的热平衡机组控制方法， 控制器 6进行开度调整的调整 频率至少是不低于进行转速调整的调整频率，例如开度调整的调整频率可以是转速调 整的调整频率的 1 -3倍数， 开度调整的调整频率例如为 0.2-1次 /分钟， 转速调整的调 整频率例如为 0.1-0.5次 /分钟， 优选的， 开度调整的调整频率为 0.2次 /分钟， 转速调 整的调整频率为 0.1次 /分钟。在频率相同的情况下， 最好是先进行开度调整， 再进行 转速调整； 例如调整频率都是 0.1次 /分钟 （也即 10分钟调整 1次） 的情况下， 则可 以在进行转速调整之前的 0.5-2分钟 （优选的为 1分钟） 进行一次开度调整， 以减少 转速调整的次数， 节约能源， 增加热平衡机组的稳定性。 但本发明并不局限于此， 开 度调整的调整频率可以大于、 等于或小于转速调整的调整频率。
在具体进行开度调整及转速调整时，控制器 6可以通过 PID控制方式控制所述水 泵 4 的转速与所述电动阀 5 的开度， 其 PID 控制参数可以通过人机接口 （Human Machine Interface， 简称 HMI ) 控制或远程通信进行修改。 控制方法实施例 2
本发明的热平衡机组的控制方法，其开度调整和转速调整之间也可以相互密切关 联， 也即在实施例 1的基础上， 对电动阀 5和水泵 4进行联合调节， 也即水泵 4的转 速调整相关电动阀 5的开度调整， 而电动阀 5的开度调整相关水泵 4的转速调整。
并且为了缩短热平衡机组内的混合循环系统达到稳态的时间， 可以在 "正式"的 开度调整之前进行开度预调， 而在 "正式"的开度调整之前进行开度预调。 因此， 在 每一调整周期内， 依次进行开度调整、 转速预调、 转速调整和开度预调的各个步骤， 循环往复。
而进行转速预调与开度预调的条件如下， 首先， 转速预调是根据如下进行判断： 1、 当水泵 4处在稳态中， 即检测到的温度差在设定温度差范围时， 水泵 4无需 进行转速调整时：
根据电动阀的开度调整， 做相对于开度调整为正向 （或称同向） 的预调， 预调的 幅度为 50% * 开度调整幅度。 开度调整幅度是本次所增加或减小的开度值与电动阀 5的最大开度的比值。 这里所说的正向和反向， 是指与前一次的开度调整的方向相同 或方向相反， 是以 "开度加大"与 "转速加快"为方向相同， 即如果电动阀 5的开度 增加， 则水泵 4的转速加大是正向， 水泵 4的转速减小是反向； 反之， 电动阀 5的开 度若减小， 则水泵 4的转速减小是相对于开度调整为正向的预调， 水泵 4的转速加大 是相对于开度调整为反向的预调。 2、 当检测到的温差不在设定温度差范围时， 水泵 4按照实施例 1的方法需做正 向调整时：
根据前一次的开度调整，做正向的转速预调， 预调的幅度为 50%的开度调整的幅 度。 此处， 是将开度调整的幅度比例， 转化为水泵的转速调节比例。
在实施例 1中，电动阀 5的开度调整和水泵 4的转速调整是遵照不同调整频率进 行的， 在本实施例中， 增加转速预调与开度预调之后， 有可能发生的是： 当转速预调 完成后， 水泵到了 "正式" 的转速调整的时候， 很可能不需要调节了。 然后电动阀 5 的开度再正常进行调节 （也可能已经达到稳态了， 电动阀 5暂时不需要再调节了） ， 往复循环。
3、 当检测到的温差不在设定温度差范围时， 水泵 4按照实施例 1的方法需做反 向调整时， 不做转速预调。
以上的各步骤中， 如果无需进行开度调整及开度预调， 则单独进行的转速调整及 转速预调。
同时， 开度预调节根据如下进行判断， 以下所说的正向反向的定义同上： 1、当电动阀处在稳态中（即用户进水管第二侧 12的进水温度在设定水温范围内， 电动阀 5无需进行开度调整） 时：
根据水泵 4的前一次转速调整， 做正向的开度预调， 调节的幅度为 50% * 转速 调整的幅度。 转速调整的幅度等于转速的改变量与水泵 4的最大转速的比值。
2、用户进水管第二侧 12的进水温度不在设定水温范围内， 电动阀 5按照实施例 1的方法需作正向的开度调整时：
根据水泵 4的转速调整， 做正向的开度预调， 调节的幅度为 50% * 转速调整的 幅度。
3、 用户进水管第二侧 12的进水温度在设定水温范围内， 电动阀 5按照实施例 1 的方法需做反向的开度调整时， 不做开度预调。
上述的所述 50%的比例， 并不局限于 50%的具体数值， 可在 0-70%之间。
控制方法实施例 3
如图 3所示，本发明第三实施例的热平衡机组控制方法，与第一、二实施例相比， 电动阀 5与水泵 4在供热管路上的位置与本发明第一实施例的热平衡机组控制方法相 同。 不同的是， 在本实施例中， 除户外温度传感器 T0、 进水温度传感器 Τ2和回水温 度传感器 Τ3外， 还在用户进水管第一侧 1 1 设置有检测其所在位置的进水温度的进 水温度传感器 Tl。
设置进水温度传感器 T1 的好处是， 可以随时监测用户进水管第一侧 11 的进水 温度是否随时保持在一恒定温度， 如果发现该处的进水温度发生变化， 则应该及时排 除外界条件变化对该处进水温度的影响，以保证本发明热平衡机组控制方法的控制准 确性。
同时， 本实施例中的控制装置还包括压力传感器， 具体而言， 包括设置于用户进 水管第一侧 1 1的用于检测其所在位置的进水水压的压力传感器 Pl、设置于用户进水 管第二侧 12的用于检测其所在位置的进水水压的压力传感器 Ρ2及设置在用户回水管 第二侧 22的用于检测其所在位置的回水水压的压力传感器 Ρ3。设置压力传感器的优 点在于， 可以实时监测供热管路内的水压情况， 当发生过压情况时， 可以通过手动或 者自动的方式进行卸压， 以防止水压过高而影响热平衡机组的正常运行。
除上述区别外， 本发明第三实施例的热平衡机组控制方法， 其开度调整、 转速调 整的调整频率、 调整过程等， 均与第一、 二实施例的热平衡机组控制方法相同， 不再 赘述。
控制方法实施例 4
如图 4所示， 本发明第四实施例的热平衡机组控制方法， 与第三实施例相比， 水 泵 4在供热管路上的位置与本发明第三实施例的热平衡机组控制方法相同，但在本实 施例中， 电动阀 5 的位置与第三实施例不同， 电动阀 5 是设置在用户进水管第一侧 1 1。
在本实施例中， 温度传感器与压力传感器的设置及作用与第三实施例相同。 在本实施例中， 控制器 6在进行转速调整时， 所检测的温度差仍然是用户进水管 第二侧 12与用户回水管第二侧 22的温度差， 对水泵转速的调整频率、 调整过程等， 均与第一、 二实施例的热平衡机组控制方法相同， 不再赘述。
与上述三实施例不同的是， 本实施例中， 由于电动阀 5是设置在用户进水管第一 侧 11上， 但进行电动阀 5 的开度调整的相关条件仍然是进水温度传感器 Τ2所检测 到的用户进水管第二侧 12的进水温度的变化。 水泵 5的转速调整时所考虑的温度差 仍然是用户进水管第二侧 12与用户回水管第二侧 22的温度差， 因此， 本实施例中， 对于开度调整的调整频率及其与进行转速调整的调整频率之间的关系，与前两实施例 相同。
控制方法实施例 5
如图 5所示， 本发明第五实施例的热平衡机组控制方法， 与第四实施例的热平衡 机组控制方法相比，电动阀 5在供热管路上的位置与本发明第四实施例的热平衡机组 控制方法相同， 但在本实施例中， 水泵 4的位置与第四实施例不同， 水泵 4是设置在 用户回水管第一侧 21。
在本实施例中， 温度传感器与压力传感器的设置及作用与第一实施例相同。 在本实施例中， 控制器 6在进行转速调整时， 虽然水泵 4设置的位置有所变化， 但所检测的温度差仍然是用户进水管第二侧与用户回水管第二侧的温度差，对水泵转 速调整的调整频率、 调整过程等， 均与第四实施例的热平衡机组控制方法相同， 不再 赘述。
本实施例中， 由于电动阀 5的位置没有变化， 因此对于开度调整的调整过程、 调 整频率及其与进行转速调整的调整频率之间的关系， 与第四实施例相同。
综合上述各实施例可知， 本发明热平衡机组控制方法中的水泵 4， 可以设置在用 户进水管第二侧 12， 也可以设置在用户回水管第二侧 22 ; 而电动阀 5， 则既可以设 置于用户进水管第一侧 1 1， 也可以设置在用户回水管第一侧 21 ; 而回水温度传感器， 则可以设置在用户回水管第二侧 22， 也可以设置在用户回水管第一侧 21。 控制装置实施例
如图 6所示， 本发明实施例的热平衡机组控制装置， 包括控制器 6及与所述控制 器 6相连接的温度传感器以及设置在所述供热管路上的电动阀 5和水泵 4 ; 具体的， 电动阀 5连接在用户进水管第一侧 1 1或者用户回水管第一侧 12， 而水泵 4连接于用 户进水管第二侧 12、 用户回水管第二侧 22或旁通管 3。 而其中的控制器 6包括传感 器模块 60、 远程通信模块 （或 HMI模块） 61、 电动阀控制模块 65、 水泵控制模块 64和调整周期及频率控制模块 66: 其中， 远程通信模块 61也可为人机接口 （Human Machine Interface, 简称 HMI) 模块 61。
传感器模块 60， 用以接收所述温度传感器所检测的温度信号， 并传送给电动阀 控制模块 65和水泵控制模块 64， 以用于进行开度调整与转速调整。 本实施例中， 所 述温度传感器包括用于检测用户进水管第一侧 1 1的进水温度的进水温度传感器 Tl、 用于检测用户进水管第二侧 12的进水温度的进水温度传感器 Τ2、用于检测用户回水 管第二侧 22 的回水温度的回水温度传感器 Τ3和用于检测户外温度的户外温度传感 器 Τ0。 传感器模块 60还可接收压力传感器所感知的压力信号， 压力传感器包括设置 于用户进水管第一侧 11的用于检测其所在位置的进水水压的压力传感器 Pl、设置于 用户进水管第二侧 12的用于检测其所在位置的进水水压的压力传感器 Ρ2及设置在用 户回水管第二侧 22的用于检测其所在位置的回水水压的压力传感器 Ρ3。
电动阀控制模块 65包括开度调整单元及开度预调单元，水泵控制模块 64包括转 速调整单元及转速预调单元，转速预调单元根据开度调整单元对电动阀 5进行开度调 整后的进水温度与回水温度的温差对水泵 4的转速进行转速预调，开度预调单元根据 转速调整单元对水泵 4进行转速调整后的进水温度对所述电动阀 5的开度进行开度预 调。
调整周期及频率控制模块 66， 连接于远程通信模块或 ΗΜΙ模块 61、 电动阀控制 模块 65和水泵控制模块 64， 以控制对电动阀 5的开度和水泵 4的转速进行周期性调 整， 每一所述周期内， 依次由开度调整单元进行开度调整、 转速预调单元进行转速预 调、 转速调整单元进行转速调整和开度预调单元进行开度预调。
同时， 调整周期及频率控制模块 66还用以控制电动阀控制模块 65 对电动阀 5 开度调整的调整频率等于或大于水泵控制模块 64对水泵 4转速调整的调整频率， 例 如控制开度调整的调整频率为转速调整的调整频率的 1-3倍，并且这个倍数可以通过 远程通信模块或 ΗΜΙ模块 61进行修改。
电动阀控制模块 65， 连接于传感器模块 60、 远程通信模块或 ΗΜΙ模块 61及调 整周期及频率控制模块 66， 用以控制所述电动阀 5 的开度调整。 进一步的， 电动阀 控制模块 65可以包括输入单元、 判断单元、 存储单元、 控制单元和输出单元。 在进 行每一次所述开度调整时， 输入单元接收传感器模块 60所输入的进水温度信号， 传 送给判断单元；存储单元用于存储表示所述设定进水温度范围与所述温度传感器检测 到的户外温度的对应关系的对应表； 判断单元就输入单元所输入的进水温度， 通过查 找存储单元所存储的所述对应表， 判断检测的进水温度是否在一设定进水温度范围 内， 并将判断结果发送给控制单元； 控制单元接收判断单元输入的判断结果， 如所述 进水温度高于所述设定进水温度范围的上限，则生成控制电动阀 5减小开度的控制信 号， 如所述进水温度低于所述设定水温范围的下限， 则生成控制电动阀 5增大开度的 控制信号， 并将所生成的控制信号经由输出单元输出给电动阀 5 ; 远程通信模块或 HMI模块 61可以用于远程或本地修改对于电动阀 5进行 PID控制的控制参数。
所述水泵控制模块 64， 连接于传感器模块 60、 远程通信模块或 HMI模块 61及 调整周期及频率控制模块 66， 用以控制所述水泵 4的转速调整。 进一步的， 与电动 阀控制单元类似的， 水泵控制模块 64可以包括输入单元、 判断单元、 存储单元、 控 制单元和输出单元。 在进行每一次所述转速调整时， 输入单元接收传感器模块 60所 输入的进水温度信号与回水温度信号， 传送给判断单元； 存储单元用于存储表示设定 温度差范围与所述温度传感器检测到的进水温度与回水温度的温度差的对应关系的 对应表； 判断单元计算所述输入单元输入的所述进水温度与回水温度的温度差， 通过 查找存储单元所存储的所述对应表，判断所计算的进水温度与回水温度的温度差是否 在一设定水温范围内， 并将判断结果发送给控制单元； 控制单元接收判断单元输入的 判断结果， 如所述进水温度与回水温度的温度差高于所述设定温度差范围的上限， 则 生成控制水泵 4增加转速的控制信号，如进水温度与回水温度的温度差低于所述设定 温度差范围的下限， 则生成控制水泵 4降低转速的控制信号， 并将所生成的控制信号 经由输出单元输出给水泵 4; 远程通信模块或 HMI模块 61可以用于远程或本地修改 对于水泵 4进行 PID控制的控制参数。
本发明实施例的热平衡机组控制装置， 也可以同时具有远程通信模块和 HMI模 块。
工业实用性
本发明主要致力于具有自动 /手动 /远程控制模式的混合循环系统， 其不仅可以控 制终端用户的供水温度， 而且可以控制从用户处返回的温差； 同时能够扩大温度控制 范围， 达到最佳节能效果。 为了减小热量损失， 节约循环泵的电能， 本发明提出将流 量和温度控制联合起来， 这样供水温度随着室外温度或实际的热负载需求而变化， 同 时流量相应地随着温差自动变化，一个更经济的热平衡系统建立于热源端与用户端之 间， 能按照室外温度变化以较低的成本满足用户的热需求量。热平衡机组进水温度和 回水温度的温度差 （ΔΤ) 是至关重要的， 如果进水温度与回水温度之间的温差增加 的话， 相同的热量可以转化成比较低的流量。 本发明使 ΔΤ最大化的其他好处在于， 热电厂的总燃油效率高、 电效率高、 热输送过程中所需的泵送能量低， 降低相关的配 电损耗。 因此， 本发明能够广泛地应用于集中供热等领域。

Claims

权利要求
1.一种热平衡机组控制装置， 所述热平衡机组的供热管路包括用户进水管（1) 、 用户回水管 （2) 和旁通管 （3) ， 所述用户进水管 （1) 和所述用户回水管 （2) 的 第一端连接供热单元 （S1) ， 第二端连接终端用户 （S2) ； 所述热平衡机组控制装 置包括控制器 （6) 及与所述控制器 （6) 相连接的温度传感器以及设置在所述供热 管路上的电动阀 （5) 和水泵 （4) ；
其特征在于：
所述控制器 （6) 包括传感器模块 （60) 、 电动阀控制模块 （65) 和水泵控制模 块 （64) ：
所述传感器模块 （60) ， 用以接收所述温度传感器所检测的温度信号并传送给 所述电动阀控制模块 （65) 和 /或水泵控制模块 （64) ；
所述电动阀控制模块 （65) ， 用以控制所述电动阀 （5) 的开度调整， 所述电动 阀（5)连接在所述用户进水管（1)或用户回水管（2)上， 所述电动阀控制模块（65) 调整所述电动阀 （5) 的开度以调整用户进水管 （1) 第二侧 （12) 的进水温度至设 定水温范围内；
所述水泵控制模块 （64) ， 用以控制所述水泵 （4) 的转速调整， 以调整所述温 度传感器检测到的所述进水温度与所述用户回水管 （2) 的回水温度的温差至设定温 差范围内。
2.如权利要求 1所述的热平衡机组控制装置， 其特征在于， 所述转速调整相关所 述电动阀的开度调整， 所述开度调整相关所述水泵的转速调整。
3.如权利要求 2所述的热平衡机组控制装置， 其特征在于， 所述电动阀控制模块 包括开度调整单元及开度预调单元， 所述水泵控制模块包括转速调整单元及转速预 调单元， 所述转速预调单元根据所述开度调整单元对所述电动阀进行开度调整后的 所述进水温度与所述回水温度的所述温差对所述水泵的转速进行转速预调， 所述开 度预调单元根据所述转速调整单元对所述水泵进行转速调整后的所述进水温度对所 述电动阀的开度进行开度预调。
4.如权利要求 3所述的热平衡机组控制装置， 其特征在于， 所述控制器还包括调 整周期及频率控制模块 （66) ， 以控制对所述电动阀的开度和所述水泵的转速进行 周期性调整， 每一所述周期内， 依次由开度调整单元进行开度调整、 转速预调单元 进行转速预调、 转速调整单元进行转速调整和开度预调单元进行开度预调。
5.如权利要求 1所述的热平衡机组控制装置， 其特征在于， 所述温度传感器包括 用于检测所述用户进水管（1)第二侧（12)的所述进水温度的进水温度传感器（T2) 和用于检测所述用户回水管 （2) 的所述回水温度的回水温度传感器 （T3) 。
6.如权利要求 5所述的热平衡机组控制装置， 其特征在于， 所述温度传感器还包 括用于检测户外温度的户外温度传感器 （TO) ， 所述设定温差范围与所述户外温度 传感器 （TO) 检测到的所述户外温度相对应， 所述设定进水温度范围与所述户外温 度传感器 （TO) 检测到的户外温度相对应。
7.如权利要求 1所述的热平衡机组控制装置， 其特征在于， 所述控制器 （6) 集 成于所述水泵 （4) 或所述电动阀 （5) 上。
8.如权利要求 1所述的热平衡机组控制装置， 其特征在于， 所述控制器 （6) 还 包括远程通信模块和 /或 HMI模块 （61) 。
9.如权利要求 6所述的热平衡机组控制装置， 其特征在于， 所述回水温度传感器 (T3) 设置于所述用户回水管第二侧 （22) 。
10.如权利要求 1所述的热平衡机组控制装置， 其特征在于， 所述水泵 （4) 设置 于所述用户进水管第二侧（12)，所述电动阀（5)设置于所述用户回水管第一侧（21)。
11.如权利要求 1所述的热平衡机组控制装置， 其特征在于， 所述电动阀 （5) 设 置于所述用户进水管第一侧（11)，所述水泵（4)设置于所述用户进水管第二侧（12)。
12.如权利要求 1所述的热平衡机组控制装置， 其特征在于， 所述水泵 （4)为一 体式或分体式变频水泵 （4) 。
13.如权利要求 1所述的热平衡机组控制装置， 其特征在于， 所述热平衡机组还 包括压力传感器， 所述压力传感器包括用于检测所述用户进水管第一侧 （11) 的进 水水压的第一压力传感器 （P1) 、 用于检测所述用户进水管第二侧 （12) 的第二进 水水压的第二压力传感器 （P2) 及用于检测所述用户回水管第二侧 （22) 的回水水 压的第三压力传感器 （P3) 。
14.一种热平衡机组， 其特征在于， 所述热平衡机组具有权利要求 1-13任一所述 的热平衡机组控制装置。
15.—种热平衡机组控制方法， 所述热平衡机组包括供热管路和控制装置， 所述 供热管路包括用户进水管 （1) 、 用户回水管 （2) 和旁通管 （3) ； 所述控制装置包 括控制器 （6) 及与所述控制器 （6) 相连接的温度传感器以及设置在所述供热管路 上的电动阀 （5) 和水泵 （4) ； 所述用户进水管 （1) 和所述用户回水管 （2) 的第 一端连接供热单元 （SI ) ， 第二端连接终端用户 （S2 ) ；
其特征在于：
所述电动阀 （5 ) ， 连接在所述用户进水管 （1 ) 或用户回水管 （2 ) 上， 所述控 制器 （6) 调整所述电动阀 （5 ) 的开度以调整用户进水管 （1 ) 第二侧 （12) 的进水 温度至设定水温范围内；
所述控制器 （6 ) 调整所述水泵 （4 ) 的转速以调整所述温度传感器检测到的所 述进水温度与所述用户回水管 （2 ) 的回水温度的温差至设定温差范围内。
16. 如权利要求 15所述的热平衡机组控制方法， 其特征在于， 所述水泵的转速 调整相关所述电动阀的开度调整， 所述电动阀的开度调整相关所述水泵的转速调整。
17.如权利要求 15所述的热平衡机组控制方法， 其特征在于， 对所述电动阀开度 的调整包括开度调整及开度预调， 对所述水泵转速的调整包括转速调整及转速预调， 其中控制器根据所述开度调整后的所述进水温度与所述回水温度的所述温差进行所 述转速预调， 根据所述转速调整后的所述进水温度进行所述开度预调。
18.如权利要求 17所述的热平衡机组控制方法， 其特征在于， 所述控制器对所述 电动阀的开度和所述水泵的转速进行周期性调整， 每一所述周期内， 依次进行开度 调整、 转速预调、 转速调整和开度预调。
19.如权利要求 17所述的热平衡机组控制方法， 其特征在于， 所述转速预调的幅 度为上一次所述开度调整的幅度的 0〜70%， 所述开度预调的幅度为上一次所述转速 调整的幅度的 0〜70%。
20.如权利要求 19所述的热平衡机组控制方法， 其特征在于， 在所述进水温度与 所述回水温度的所述温差不在设定温差范围内时， 如需进行相对于所述开度调整为 正向的所述转速调整， 则不进行所述转速预调。
21.如权利要求 20所述的热平衡机组控制方法， 其特征在于， 在所述进水温度不 在设定温差范围内时， 如需进行相对于所述转速调整为正向的所述开度调整， 则不 进行所述开度预调。
22.如权利要求 21所述的热平衡机组控制方法， 其特征在于， 所述温度传感器包 括用于检测户外温度的户外温度传感器 （TO ) ， 所述设定温差范围与所述户外温度 传感器 （TO ) 检测到的所述户外温度相对应， 所述设定进水温度范围与所述户外温 度传感器 （TO) 检测到的户外温度相对应。
23.如权利要求 15所述的热平衡机组控制方法， 其特征在于， 所述控制器 （6) 通过 PID控制方式控制所述水泵 （4 ) 的转速与所述电动阀 （5 ) 的开度。
24.如权利要求 23所述的热平衡机组控制方法， 其特征在于， 所述设定温差范围 的中心值通过查找所述户外温度与所述设定温度差范围中心值的对应关系表而获 得， 不在所述对应关系表中的户外温度的所述设定温差范围的中心值通过其上下相 邻户外温度值经过线性插值而获得。
25.如权利要求 24所述的热平衡机组控制方法， 其特征在于， 所述设定温差范围 为所述设定温差范围的中心值 ± 0.3或 ± 0.5。
PCT/CN2012/084777 2012-11-16 2012-11-16 热平衡机组及其控制方法与控制装置 Ceased WO2014075303A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2012/084777 WO2014075303A1 (zh) 2012-11-16 2012-11-16 热平衡机组及其控制方法与控制装置
CN201280076473.9A CN104769364B (zh) 2012-11-16 2012-11-16 热平衡机组及其控制方法与控制装置
CN201320727574.XU CN203586393U (zh) 2012-11-16 2013-11-15 热平衡机组及其控制装置
CN201320727677.6U CN203586394U (zh) 2012-11-16 2013-11-15 热平衡机组及其控制装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/084777 WO2014075303A1 (zh) 2012-11-16 2012-11-16 热平衡机组及其控制方法与控制装置

Publications (1)

Publication Number Publication Date
WO2014075303A1 true WO2014075303A1 (zh) 2014-05-22

Family

ID=50730520

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/084777 Ceased WO2014075303A1 (zh) 2012-11-16 2012-11-16 热平衡机组及其控制方法与控制装置

Country Status (2)

Country Link
CN (1) CN104769364B (zh)
WO (1) WO2014075303A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110173911A (zh) * 2019-06-27 2019-08-27 川田机械制造(上海)有限公司 新型冷水机
CN114992707A (zh) * 2019-05-06 2022-09-02 萨姆森控制设备（中国）有限公司 一种智能热力混水装置及控制方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109028250B (zh) * 2018-07-13 2023-10-31 珠海格力电器股份有限公司 用于控制供暖系统运行的控制方法
CN109737485A (zh) * 2018-12-15 2019-05-10 阿诗丹顿燃具有限公司 燃气式热水炉采暖系统及其控制装置和方法
CN112254352A (zh) * 2020-09-18 2021-01-22 华帝股份有限公司 一种用于壁挂炉的水泵排气方法
CN112286131B (zh) * 2020-10-23 2022-09-20 中国电子系统工程第二建设有限公司 一种mau控制系统及电子洁净厂房mau高精度控制方法
CN113606782B (zh) * 2021-07-30 2022-10-28 宁波奥克斯电气股份有限公司 一种热泵机组的变频控制方法、装置、存储介质及热泵机组
CN116839091B (zh) * 2023-05-15 2024-01-19 山东和同信息科技股份有限公司 一种基于深度学习的换热站自动控制参数设置方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09303861A (ja) * 1996-05-14 1997-11-28 Harman Co Ltd 給湯器
CN201072184Y (zh) * 2007-07-23 2008-06-11 北京金房暖通节能技术有限公司 分布式变频二级泵热水锅炉供热系统
CN101211169A (zh) * 2007-12-21 2008-07-02 哈尔滨工业大学 最小输送能耗的热源供热调节方法
CN201100704Y (zh) * 2007-09-30 2008-08-13 侯光林 智能化控制的节能供热系统
FR2963087A1 (fr) * 2010-07-26 2012-01-27 Vitherm Appareil de production d'eau chaude sanitaire et procede de fonctionnement d'un tel appareil
CN102759145A (zh) * 2012-07-27 2012-10-31 北京市旭广厦暖通节能设备有限责任公司 供暖系统流量平衡调节方法及流量平衡调节系统
US20120280052A1 (en) * 2010-03-05 2012-11-08 Mitsubishi Heavy Industries, Ltd. Hot-water heat pump and method of controlling the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09303861A (ja) * 1996-05-14 1997-11-28 Harman Co Ltd 給湯器
CN201072184Y (zh) * 2007-07-23 2008-06-11 北京金房暖通节能技术有限公司 分布式变频二级泵热水锅炉供热系统
CN201100704Y (zh) * 2007-09-30 2008-08-13 侯光林 智能化控制的节能供热系统
CN101211169A (zh) * 2007-12-21 2008-07-02 哈尔滨工业大学 最小输送能耗的热源供热调节方法
US20120280052A1 (en) * 2010-03-05 2012-11-08 Mitsubishi Heavy Industries, Ltd. Hot-water heat pump and method of controlling the same
FR2963087A1 (fr) * 2010-07-26 2012-01-27 Vitherm Appareil de production d'eau chaude sanitaire et procede de fonctionnement d'un tel appareil
CN102759145A (zh) * 2012-07-27 2012-10-31 北京市旭广厦暖通节能设备有限责任公司 供暖系统流量平衡调节方法及流量平衡调节系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114992707A (zh) * 2019-05-06 2022-09-02 萨姆森控制设备（中国）有限公司 一种智能热力混水装置及控制方法
CN110173911A (zh) * 2019-06-27 2019-08-27 川田机械制造(上海)有限公司 新型冷水机

Also Published As

Publication number Publication date
CN104769364A (zh) 2015-07-08
CN104769364B (zh) 2017-09-08

Similar Documents

Publication Publication Date Title
WO2014075303A1 (zh) 热平衡机组及其控制方法与控制装置
CN104105925B (zh) 用于调节在一个空间或一组多个空间中的空间温度的方法以及用于执行该方法的装置
JP2012189308A (ja) 省エネ中央集中式暖房及び給湯システム
CN204285773U (zh) 变频恒温型储水式电热水器
CN110736129A (zh) 一种城市供热管网智能平衡调控系统及方法
CN104633842A (zh) 供热和/或冷却系统的调节方法和用于该系统的配送装置
CN103851769B (zh) 一种热水系统的预感知加热方法及其热水系统
CN102353158A (zh) 用于热水器恒温的控制方法和控制装置
KR20120117355A (ko) 변유량 난방제어장치 및 그 방법
CN203586393U (zh) 热平衡机组及其控制装置
CN109654887A (zh) 一种循环水冷却系统及其自动控制方法
WO2013016883A1 (zh) 一种变流量循环式热泵热水器
CN106489106A (zh) 用于节能泵送应用的系统和流自适应无传感器泵送控制装置
CN110762601A (zh) 一种卫浴和采暖同步运行的壁挂炉及控制方法
CN203586394U (zh) 热平衡机组及其控制装置
CN112815389B (zh) 一种换热机组运行控制方法
CN106152521B (zh) 一种可自循环的循环装置及具有该循环装置的热水器
JP5152211B2 (ja) 給湯装置
GB2493222A (en) Water heating system for heating mains water using a thermal store
CN207279979U (zh) 一种电暖通锅炉
JP2009063262A (ja) ヒートポンプ式給湯機
CN205227694U (zh) 一种中央空调及其节能控制系统
CN110081509A (zh) 一种热水供热空调双温防冻调控机组及其控制方法
CN205225420U (zh) 一种新能源汽车冷却系统
CN212645082U (zh) 一种高低温液体循环系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12888413

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12888413

Country of ref document: EP

Kind code of ref document: A1