CN112781130A - Energy-saving control method for delivery pump based on regional centralized cooling and heating system - Google Patents

Energy-saving control method for delivery pump based on regional centralized cooling and heating system Download PDF

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Publication number
CN112781130A
CN112781130A CN202011617309.7A CN202011617309A CN112781130A CN 112781130 A CN112781130 A CN 112781130A CN 202011617309 A CN202011617309 A CN 202011617309A CN 112781130 A CN112781130 A CN 112781130A
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China
Prior art keywords
heat exchange
user
pressure difference
primary side
value
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Pending
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CN202011617309.7A
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Chinese (zh)
Inventor
罗曙光
王朝晖
傅建平
徐剑
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Shenzhen Qianhai Energy Technology Development Co ltd
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Shenzhen Qianhai Energy Technology Development Co ltd
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Priority to CN202011617309.7A priority Critical patent/CN112781130A/en
Publication of CN112781130A publication Critical patent/CN112781130A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0003—Exclusively-fluid systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a transfer pump energy-saving control method based on a regional centralized cooling and heating system, which comprises the following steps: and detecting and recording the pressure difference value of the heat exchange medium of the input section and the output section of the primary side pipeline of the user heat exchange station as the actual pressure difference value of the user, calculating the minimum value of the actual pressure difference values of all the users, recording the minimum value as the actual minimum pressure difference value, and adjusting the operating frequency of the delivery pump to ensure that the actual minimum pressure difference value is equal to the designed pressure difference value of the primary side pipeline. The energy-saving control method for the delivery pump based on the regional centralized cooling and heating system can control the delivery pump to operate at a lower frequency under the condition of meeting the operation requirement of the system, and is beneficial to reducing the energy consumption of the delivery pump in the system, so that the energy consumption and the operation cost of the whole regional centralized cooling and heating system are reduced.

Description

Energy-saving control method for delivery pump based on regional centralized cooling and heating system
Technical Field
The invention relates to the technical field of control of cooling and heating systems, in particular to an energy-saving control method for a delivery pump based on a regional centralized cooling and heating system.
Background
The hydraulic working condition imbalance phenomenon of the centralized central air-conditioning system generally exists, for example, a regional centralized cooling and heating system is taken as an example, a master station transmits chilled water or hot water which is prepared in the master station in a centralized manner to surrounding buildings through a water pump, in the early design calculation, each building is calculated and distributed with fixed chilled water or hot water circulation flow, cooling or heating is carried out according to the design flow, and the indoor environment temperature in the building can meet the design requirement. However, in the actual operation process, when the system operates under the off-design daily load, the load of each user is changed in real time, and in order to ensure that each user has enough cold or heat, the transfer pump generally operates under the working condition of over-design flow, so that the cold source or the heat source transferred by the regional centralized cooling and heating system is not matched with the user demand, and the energy consumption and the operation cost of the system are greatly increased.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an energy-saving control method for a delivery pump based on a regional centralized cooling and heating system, which can effectively reduce the energy consumption of the delivery pump in the system, thereby reducing the energy consumption and the operating cost of the whole regional centralized cooling and heating system.
The invention discloses a transfer pump energy-saving control method based on a regional centralized cooling and heating system, which comprises the following steps: the primary side pipeline of the user heat exchange station comprises an input section and an output section, the pressure difference value between a primary side heat exchange medium of the input section and a primary side heat exchange medium of the output section is detected, and the pressure difference value of the primary side heat exchange medium of the input section and the pressure difference value of the primary side heat exchange medium of the output section are recorded as an actual pressure difference value of a user; collecting the user pressure difference values of all the user heat exchange stations, calculating the minimum value of all the user pressure difference values, and recording the minimum value of all the user pressure difference values as the actual minimum pressure difference value; and adjusting the operating frequency of the delivery pump to enable the actual minimum pressure difference value to be equal to the design pressure difference value of the primary side pipeline.
The energy-saving control method of the delivery pump based on the regional centralized cooling and heating system, provided by the embodiment of the invention, at least has the following beneficial effects: in the operation process of the system, the actual pressure difference value of a user of the primary side pipeline is ensured to be not less than the design pressure difference value of the primary side pipeline, when the actual minimum pressure difference value is equal to the design pressure difference value of the primary side pipeline, the user heat exchange station corresponding to the actual minimum pressure difference value just meets the design requirement, the operation frequency of the delivery pump at the moment is the minimum allowable operation frequency of the system, the operation energy consumption of the delivery pump is low, and the operation energy consumption and the operation cost of the whole system are also low.
According to some embodiments of the present invention, before detecting a pressure difference value between the primary side heat exchange medium of the input section and the primary side heat exchange medium of the output section, the static balance valve installed on the primary side piping is adjusted to equalize the resistances of the primary side piping of all the user heat exchange stations.
According to some embodiments of the invention, the means for adjusting the operating frequency of the delivery pump comprises: when the actual minimum differential pressure value is smaller than the design differential pressure value, increasing the operating frequency of the delivery pump until the actual minimum differential pressure value is equal to the design differential pressure value; and when the actual minimum differential pressure value is larger than the design differential pressure value, reducing the operating frequency of the delivery pump, wherein the actual minimum differential pressure value is equal to the design differential pressure value.
According to some embodiments of the invention, a heat exchange regulating valve is arranged in the primary side pipeline, and during the operation process of the user heat exchange station and after the static balance valve is adjusted, the opening of the heat exchange regulating valve is adjusted according to the requirement of the secondary side pipeline of the user heat exchange station, so as to change the heat exchange power of the user heat exchange station.
According to some embodiments of the present invention, a pressure sensor is disposed at the user heat exchange station, a first input end of the pressure sensor is connected to the input section of the primary side pipeline, a second input end of the pressure sensor is connected to the output section of the primary side pipeline, and a pressure difference value detected by the pressure sensor is recorded as the user actual pressure difference value.
According to some embodiments of the present invention, a user station controller is installed at each user heat exchange station, a master station controller is installed at the master station, the user station controller collects the detection data of the pressure sensor and transmits the detection data to the master station controller, and the master station controller processes the collected data to obtain the actual minimum differential pressure value and controls the operation of the delivery pump according to the processing result.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a system diagram of a district central cooling and heating system;
fig. 2 is a schematic view of the user heat exchange station of fig. 1.
Reference numerals: 101-a master station, 102-a user heat exchange station, 103-a delivery pump, 104-a liquid supply main pipe, 105-a liquid return main pipe, 106-a master station controller, 201-a heat exchanger, 202-an input section, 203-a heat exchange section, 204-an output section, 205-a secondary side pipeline, 206-a pressure sensor, 207-a static balance valve, 208-a heat exchange regulating valve and 209-a user controller.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The invention provides a conveying pump energy-saving control method based on a regional centralized cooling and heating system, and a regional centralized cooling and heating system applicable to the method is introduced below. Referring to fig. 1, the regional centralized cooling and heating system includes a main station 101, a plurality of user heat exchange stations 102, a delivery pump 103 and a delivery main, wherein the main station 101 is provided with one, the plurality of user heat exchange stations 102 are provided with a plurality of delivery main, the delivery main includes a liquid supply main 104 and a liquid return main 105, and the liquid supply main 104 and the liquid return main 105 are both connected with the main station 101.
The central station 101 includes a refrigerating unit or a heating unit (not shown), and the low-temperature or high-temperature primary side heat exchange medium prepared in the central station 101 is finally transferred to the user heat exchange station 102. Referring to fig. 1 and 2, the user heat exchange station 102 includes a heat exchanger 201, a primary side pipeline and a secondary side pipeline 205, the primary side pipeline and the secondary side pipeline 205 are both connected to the heat exchanger 201, a primary side heat exchange medium in the primary side pipeline can flow through the heat exchanger 201 and exchange heat with a secondary side heat exchange medium in the secondary side pipeline 205 which can also flow through the heat exchanger 201 (the secondary side pipeline 205 is connected to user terminal equipment, not shown in the figure). The primary side pipeline comprises an input section 202, a heat exchange section 203 and an output section 204 which are connected in sequence, wherein the input section 202 is connected with the liquid supply main pipe 104, and the output section 204 is connected with the liquid return main pipe 105. The primary side heat exchange medium prepared in the central station 101 flows to the primary side pipeline of each user heat exchange station 102 through the liquid supply main pipe 104 under the driving of the delivery pump 103, and after heat exchange of the primary side heat exchange medium in the heat exchanger 201 is completed, the primary side heat exchange medium flows back to the refrigerating unit or the heating unit in the central station 101 through the liquid return main pipe 105.
Referring to fig. 2, the user heat exchange station 102 includes a pressure sensor 206, the pressure sensor 206 includes a first input end and a second input end, the first input end is connected to the input section 202, the second input end is connected to the output section 204, and the pressure sensor 206 is configured to detect a pressure difference of the primary side heat exchange medium in the input section 202 and the output section 204 of the primary side pipeline. User heat exchange station 102 further includes a static balance valve 207 and a heat exchange regulating valve 208, where static balance valve 207 and heat exchange regulating valve 208 are both installed on the primary side pipeline, specifically, static balance valve 207 may be installed on input section 202, and heat exchange regulating valve 208 may be installed on output section 204. The static balance valve 207 is used for adjusting the static hydraulic imbalance of the system (the static hydraulic imbalance is inherent in the system), and the heat exchange adjusting valve 208 is used for adjusting the flow of the primary side heat exchange medium flowing through the heat exchanger 201, so as to change the heat exchange power of the heat exchanger 201.
The central station 101 comprises a central station controller 106, the user heat exchange stations 102 comprise user controllers 209, the user controllers 209 are connected with the pressure sensors 206, each user controller 209 is connected with the central station controller 106, and the central station controller 106 is connected with the delivery pumps 103. The user control 209 is capable of collecting the detection information of the pressure sensor 206 and transmitting the detection information to the station controller 106, and the station controller 106 processes all the collected information of the differential pressure values and controls the operation of the delivery pump 103 (for example, increases or decreases the operation frequency of the delivery pump 103) according to the processing result.
The invention provides a transfer pump energy-saving control method based on a regional centralized cooling and heating system, which comprises the following steps:
detecting a pressure difference value between the primary side heat exchange medium of the input section 202 and the primary side heat exchange medium of the output section 204, and recording the pressure difference value as a user actual pressure difference value;
collecting user actual differential pressure values of all user heat exchange stations 102, calculating the minimum value of the user actual differential pressure values, and recording the minimum value as an actual minimum differential pressure value;
the operating frequency of the transfer pump 103 is adjusted so that the actual minimum differential pressure value is equal to the design differential pressure value.
The control method will be explained in detail below. In the running process of the system, the actual pressure difference value of a user of the primary side pipeline is ensured to be not less than the designed pressure difference value of the primary side pipeline; when the actual differential pressure value of the user is smaller than the designed differential pressure value, the delivery pump 103 does not deliver enough primary side heat exchange medium to meet the requirement of the user heat exchange station 102; when the actual differential pressure value of the user is greater than the designed differential pressure value, the flow rate of the heat exchange medium delivered to user heat exchange station 102 is greater than the demand of user heat exchange station 102, and the energy consumption of delivery pump 103 is too high.
If the system has n user heat exchange stations 102, the actual pressure difference values of the primary side pipelines of the user heat exchange stations 102 are respectively recorded as Δ Py1、ΔPy2、……ΔPynLet the actual minimum differential pressure value be Δ PyminThen Δ Pymin＝min(ΔPy1、ΔPy2、……ΔPyn) The specific calculations may be performed by the station controller 106; of primary side lines of user heat exchange station 102The designed differential pressure values are all delta PsTherefore, it is necessary to adjust the operating frequency of the feed pump 103 so that Δ Pymin≥ΔPs. In the above control method, Δ P is adjusted by adjusting the operating frequency of the feed pump 103ymin＝ΔPs(ii) a When Δ Pymin＝ΔPsIn the process, the user heat exchange station 102 corresponding to the actual minimum differential pressure value just meets the operation requirement (in this case, the remaining user heat exchange stations 102 also necessarily meet the operation requirement of the system), the operation frequency of the delivery pump 103 at this time is the minimum allowable operation frequency of the system, the operation energy consumption of the delivery pump 103 is low, and the operation energy consumption and the operation cost of the whole system are also low.
When Δ Pymin<ΔPsAt this time, the transfer pump 103 does not transfer enough primary side heat exchange medium to meet the requirements of all the user heat exchange stations 102, and at this time, the operation frequency of the transfer pump 103 needs to be increased, so as to increase the flow rate of the primary side heat exchange medium transferred to the user heat exchange stations 102 until Δ Pymin＝ΔPs. When Δ Pymin>ΔPsAt this time, the flow rate of the heat exchange medium delivered to the user heat exchange station 102 is greater than the demand of the user heat exchange station 102, and at this time, the operation frequency of the delivery pump 103 needs to be reduced, so that the flow rate of the primary side heat exchange medium delivered to the user heat exchange station 102 by the delivery pump 103 is reduced until Δ Pymin＝ΔPs. When Δ Pymin＝ΔPsThen the current operating frequency of the delivery pump 103 is maintained.
It should be noted that the actual minimum differential pressure value mentioned in the present invention is equal to the design differential pressure value (i.e., Δ P)ymin＝ΔPs) It is not strictly limited to exact numerical equivalence thereof; in practical engineering applications, an error value, denoted as σ, may be set based on the designed differential pressure value, and when the actual minimum differential pressure value is within the error range, i.e., Δ Ps-σ≤ΔPymin≤ΔPsAt + σ, Δ P can be consideredymin＝ΔPs。
The valve opening of the static balancing valve 207 on the primary side piping of the customer heat exchange station 102 may be adjusted to allow the primary side piping of each customer heat exchange station 102 to be open before the actual differential pressure value of the customer on the primary side piping is detectedThe resistances of the paths are the same, so that the designed pressure difference values of the primary side pipelines of each user heat exchange station 102 are all delta Ps. The term "resistance of the primary-side pipe" as used herein means a resistance to which the primary-side heat exchange medium flows in the primary-side pipe.
In addition, during operation of user heat exchange station 102, the valve opening of heat exchange regulating valve 208 may be adjusted for the user's heat exchange needs. For example, the central station 101 supplies cold to the user heat exchange station 102, the primary side heat exchange medium is chilled water, and when the user needs more cold, the valve opening of the heat exchange regulating valve 208 can be increased, and the flow of the chilled water flowing through the heat exchanger 201 can be increased; on the contrary, when the user does not need excessive cold, the valve opening of the heat exchange regulating valve 208 can be reduced, and the flow rate of the chilled water flowing through the heat exchanger 201 can be reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims (6)

1. The energy-saving control method of the delivery pump based on the regional centralized cooling and heating system is characterized by comprising the following steps of:
the primary side pipeline of the user heat exchange station comprises an input section and an output section, the pressure difference value between the primary side heat exchange medium in the input section and the primary side heat exchange medium in the output section is detected, and the pressure difference value between the primary side heat exchange medium in the input section and the primary side heat exchange medium in the output section is recorded as the actual pressure difference value of a user;
collecting the user actual pressure difference values of all the user heat exchange stations, calculating the minimum value of all the user actual pressure difference values, and recording the minimum value of all the user actual pressure difference values as the actual minimum pressure difference value;
and adjusting the operating frequency of the delivery pump to enable the actual minimum pressure difference value to be equal to the design pressure difference value of the primary side pipeline.
2. The energy-saving control method for the transfer pump of the district-based centralized cooling and heating system according to claim 1, further comprising the steps of: before detecting the pressure difference value between the primary side heat exchange medium of the input section and the primary side heat exchange medium of the output section, adjusting a static balance valve arranged on the primary side pipeline to enable the resistance of all the primary side pipelines to be equal.
3. The energy-saving control method for the transfer pump of the district-based centralized cooling and heating system according to claim 1, wherein the manner of adjusting the operation frequency of the transfer pump comprises: when the actual minimum differential pressure value is smaller than the design differential pressure value, increasing the operating frequency of the delivery pump until the actual minimum differential pressure value is equal to the design differential pressure value; and when the actual minimum differential pressure value is larger than the design differential pressure value, reducing the operating frequency of the delivery pump until the actual minimum differential pressure value is equal to the design differential pressure value.
4. The energy-saving control method for the transfer pump of the district-based centralized cooling and heating system according to claim 2, further comprising the steps of: and a heat exchange regulating valve is arranged in the primary side pipeline, and the opening of the heat exchange regulating valve is regulated according to the requirement of the secondary side pipeline of the user heat exchange station in the operation process of the user heat exchange station after the static balance valve is regulated, so that the heat exchange power of the user heat exchange station is changed.
5. The energy-saving control method for the delivery pump of the district-based centralized cooling and heating system according to claim 1, wherein a pressure sensor is arranged in the user heat exchange station, a first input end of the pressure sensor is connected with the input section, a second input end of the pressure sensor is connected with the output section, and the pressure difference value detected by the pressure sensor is recorded as the user actual pressure difference value.
6. The energy-saving control method for the delivery pump based on the district centralized cooling and heating system of claim 5, wherein a user station controller is installed at each user heat exchange station, a master station controller is installed at a master station, the user station controller collects the detection data of the pressure sensor and transmits the detection data to the master station controller, the master station controller processes the collected data and calculates the actual minimum differential pressure value, and the master station controller controls the operation of the delivery pump according to the actual minimum differential pressure value and the designed differential pressure value.
CN202011617309.7A 2020-12-30 2020-12-30 Energy-saving control method for delivery pump based on regional centralized cooling and heating system Pending CN112781130A (en)

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CN202011617309.7A CN112781130A (en) 2020-12-30 2020-12-30 Energy-saving control method for delivery pump based on regional centralized cooling and heating system

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Application Number Priority Date Filing Date Title
CN202011617309.7A CN112781130A (en) 2020-12-30 2020-12-30 Energy-saving control method for delivery pump based on regional centralized cooling and heating system

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101354171A (en) * 2007-07-24 2009-01-28 株式会社山武 Water supply control system and method
CN107110397A (en) * 2014-10-22 2017-08-29 丹佛斯有限公司 The arrangement of heat exchanger valve, heating system and the method for operating heating system
CN109357314A (en) * 2018-10-17 2019-02-19 北京金房暖通节能技术股份有限公司 A kind of hydraulic equilibrium regulating system and adjusting method
CN109737497A (en) * 2019-03-06 2019-05-10 柳箭 Heat metering secondary network balance system based on the control of index circuit pressure difference
CN110925854A (en) * 2019-11-29 2020-03-27 润电能源科学技术有限公司 Flow regulation method and system for improving hydraulic imbalance of secondary heat supply network
CN111102645A (en) * 2019-12-18 2020-05-05 中节能唯绿（北京）科技股份有限公司 Heat balance control method for central heating system
CN111594903A (en) * 2020-05-28 2020-08-28 南京百源通能源技术有限公司 Hydraulic balance control system and hydraulic balance control method
WO2020249654A1 (en) * 2019-06-13 2020-12-17 E.On Sverige Ab Method and control server for controlling a district thermal energy distribution system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101354171A (en) * 2007-07-24 2009-01-28 株式会社山武 Water supply control system and method
CN107110397A (en) * 2014-10-22 2017-08-29 丹佛斯有限公司 The arrangement of heat exchanger valve, heating system and the method for operating heating system
CN109357314A (en) * 2018-10-17 2019-02-19 北京金房暖通节能技术股份有限公司 A kind of hydraulic equilibrium regulating system and adjusting method
CN109737497A (en) * 2019-03-06 2019-05-10 柳箭 Heat metering secondary network balance system based on the control of index circuit pressure difference
WO2020249654A1 (en) * 2019-06-13 2020-12-17 E.On Sverige Ab Method and control server for controlling a district thermal energy distribution system
CN110925854A (en) * 2019-11-29 2020-03-27 润电能源科学技术有限公司 Flow regulation method and system for improving hydraulic imbalance of secondary heat supply network
CN111102645A (en) * 2019-12-18 2020-05-05 中节能唯绿（北京）科技股份有限公司 Heat balance control method for central heating system
CN111594903A (en) * 2020-05-28 2020-08-28 南京百源通能源技术有限公司 Hydraulic balance control system and hydraulic balance control method

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