GB2528314A - A heating supply arrangement - Google Patents

A heating supply arrangement Download PDF

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Publication number
GB2528314A
GB2528314A GB1412753.4A GB201412753A GB2528314A GB 2528314 A GB2528314 A GB 2528314A GB 201412753 A GB201412753 A GB 201412753A GB 2528314 A GB2528314 A GB 2528314A
Authority
GB
United Kingdom
Prior art keywords
fluid
heated
supply arrangement
area
flow
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.)
Withdrawn
Application number
GB1412753.4A
Other versions
GB201412753D0 (en
Inventor
Jan Oesterholm Hansen
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.)
SAV UNITED KINGDOM Ltd
Original Assignee
SAV UNITED KINGDOM Ltd
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 SAV UNITED KINGDOM Ltd filed Critical SAV UNITED KINGDOM Ltd
Priority to GB1412753.4A priority Critical patent/GB2528314A/en
Publication of GB201412753D0 publication Critical patent/GB201412753D0/en
Publication of GB2528314A publication Critical patent/GB2528314A/en
Withdrawn legal-status Critical Current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
    • 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
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
    • 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
    • F24D19/1048—Counting of energy consumption
    • 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
    • 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
    • F24D10/00—District heating systems
    • F24D10/003—Domestic delivery stations having a heat exchanger
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • 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]
    • Y02B30/17—District heating

Abstract

A heating arrangement 100 comprises a flow pipe 121 for providing fluid heated by a heat source 111 to an area to be heated and a return pipe 122 to return fluid from the area to the heat source 111. Temperature sensor 130 in the return pipe 122 controls a valve 133 so that the temperature or flow rate of the fluid is adjusted according to the temperature measured by sensor 130. The heat source 111 may be a heat exchanger with a primary heat circuit 110 and a secondary heat circuit 120 comprising flow pipe 121 and return pipe 122. The control valve 133 may be located in a return pipe 113 of the primary circuit 110. Energy output to the heated area may be measured by an energy meter 116 in the return pipe 113 of the primary circuit 110. The arrangement is particularly suitable for heating a living area of an apartment using water flowing through radiators or underfloor heating.

Description

A Heating Supply Arrangement
Background of the Invention
The present invention concerns a heating supply arrangement. More particularly, but not exclusively, this invention concerns a heating supply arrangement for supplying heated fluid to an area to be heated, wherein the heating supply arrangement comprises a fluid flow pipe for receiving the heated fluid from the heat source and supplying the heated fluid to the area to be heated, and a fluid return pipe for returning the fluid supplied by the fluid flow pipe from the area to be heated to the heat source. The invention also concerns a method of supplying heated fluid to an area to be heated.
Prior art heat supply arrangements often have a
temperature sensor on the fluid flow path and also a temperature sensor on a fluid return path of a primary circuit of a heat exchanger (heat source) . This means that manufacture, installation and maintenance of the heating supply arrangement could be relatively high.
The present invention seeks to mitigate the above-mentioned problems. Alternatively or additionally, the present invention seeks to provide an improved heating supply arrangement.
Summary of the Invention
The present invention provides, according to a first aspect, a heating supply arrangement for supplying heated fluid to an area to be heated, wherein the heating supply arrangement comprises a fluid flow pipe for receiving the heated fluid from the heat source and supplying the heated fluid to the area to be heated, and a fluid return pipe for returning the fluid supplied by the fluid flow pipe from the area to be heated to the heat source, wherein the fluid return pipe is provided with a temperature sensor to measure the temperature of the fluid in the fluid return pipe.
Having a temperature sensor on the fluid return pipe allows temperature sensors on the fluid flow pipe and on a fluid return pipe of a primary circuit to be removed. This saves money in terms of manufacture, installation and maintenance of the heating supply arrangement. In addition, having a temperature sensor on the fluid return path allows the temperature drop in the fluid pipes to be managed so as to maintain a suitable temperature drop. For example, the arrangement may work more efficiently at a temperature drop of 700. Also, such an arrangement flags up when valves (for example, on radiators) in the area (or areas) to be heated need to be balanced. This increases the efficiency of the arrangement.
Preferably, the heat source is a heat exchanger for receiving a heated fluid from a primary heat circuit and exchanging heat from the primary heat circuit with a secondary heat circuit, the secondary heat circuit comprising the fluid flow pipe and fluid return pipe. The heat exchanger and primary heat circuit may be part of the heating supply arrangement. The heat exchanger may exchange heat with a number of secondary heat circuits, each supplying heat to an area to be heated.
Alternatively, the heat source is a (direct connection) heating unit comprising heating pipework for supplying heated fluid from the heating pipework to the fluid flow pipe.
Preferably, the temperature sensor is connected to a valve controller for controlling flow through a flow valve, such that the temperature and/or flow rate of the heated fluid in the fluid flow pipe can be adjusted according to the temperature measured by the temperature sensor. Thus, the temperature of the area to be heated can be adjusted.
More preferably, the flow through the flow valve is controlled so as to keep the temperature measured by the temperature sensor substantially constant. Hence, the temperature of the area to be heated can be maintained at a suitable level, which may be set by a user. For example, flow through the flow valve could be controlled so as to maintain the temperature of the fluid in the fluid return path as 40 degrees Celsius. This may provide a temperature in the area to be heated of, for example, 18 degrees Celsius. If the temperature sensor detects a temperature above the desired level (here, 40 degrees Celsius) , the valve controller controls the flow valve to reduce the flow.
Preferably, the flow valve is located in the primary heat circuit. Hence, the valve controller controls the flow on the other side of the heat exchanger (heat source) to the area to be heated. In other words, the valve is on the other side of the heat exchanger (heat source) from the area to be heated.
More preferably, the flow valve is located on a fluid return pipe of the primary heat circuit (the pipe for returning the supplied heated fluid from the heat exchanger) Alternatively, the flow valve is located in the heating unit and controls the flow of heated fluid from the heating pipework to the fluid flow pipe.
Preferably, the heated fluid in the fluid flow pipe and fluid return pipe is water. The water may include additives of the type usually found in heating supply arrangements.
Preferably, the area to be heated is a private apartment, and more preferably a living area of the apartment. The primary heat circuit can be used to provide heated fluid to a number of private apartments or areas of apartments through the same or a number of heat sources.
Preferably, the area to be heated is heated by a radiator or underfloor heating in the area, which receives the heated fluid from the heat source.
The heating supply arrangement may include a similar second fluid flow pipe for also receiving heated fluid from the heat source and supplying the heated fluid to a second area to be heated, and a similar fluid return pipe for returning the fluid supplied by the second fluid flow pipe from the second area to be heated to the heat source. The second fluid return pipe may be provided with a second temperature senscr to measure the temperature of the fluid in the second fluid return pipe. Tn other words, the heating supply arrangement may include a second secondary circuit.
The flow valve may be controlled according to the temperature measured by both temperature sensors.
Preferably, the heating supply arrangement comprises an energy meter for measuring the energy outputted to the area to be heated. This allows a resident/owner of the area to be heated to be effectively charged for their energy usage.
More preferably, the energy meter is located in the primary heat circuit. The heat exchanger and primary heat circuit may be part of the heating supply arrangement.
Even more preferably, the energy meter is located on a fluid return pipe of the primary heat circuit.
According to a second aspect of the invention there is also provided a method of supplying heated fluid to an area to be heated, the method using a heating supply arrangement as described above.
According to a third aspect of the invention there is also provided a method of supplying heated fluid to an area to be heated, the method comprising the following steps providing a heating supply arrangement comprising a fluid flow pipe and a fluid return pipe, providing a temperature sensor on the fluid return pipe, receiving heated fluid from a heat source, in the fluid flow pipe, supplying heated fluid to the area to be heated, returning the supplied fluid to the heat source, and measuring the temperature of the fluid in the fluid return pipe.
Preferably, the method further comprises the steps of providing a valve controller for controlling flow through a flow valve, and controlling the flow through the flow valve according to the temperature measured.
It will of course be appreciated that features described in relation to one aspect of the present invention may be incorporated into other aspects of the present invention. For example, the method of the invention may incorporate any of the features described with reference to the apparatus of the invention and vice versa.
Description of the Drawings
Embodiments of the present invention will now be described by way of example only with reference to the accompanying schematic drawings of which: Figure 1 shows a schematic view of a heating supply arrangement according to a first embodiment of the invention; and Figure 2 shows a schematic view of a heating supply arrangement according to a second embodiment ol the invention.
Detailed Description
Figure 1 shows a schematic view of a heating supply arrangement 100 according to a first embodiment of the invention.
The heating supply arrangement 100 comprises a primary circuit 110 and a secondary circuit 120, each connected to opposite sides (primary and secondary) of a heat exchanger 111.
The primary circuit 110 comprises a fluid flow pipe 112 providing a heated fluid flow into the primary side of the heat exchanger 111. The primary circuit 110 also has a fluid return pipe 113 for returning fluid from the primary side of the heat exchanger 111. Each of the primary fluid pipes 112, 113 is provided with a ball valve 114, 115 respectively for cutting off flow when required. The primary fluid return pipe 113 is also provided with an energy meter 116 for measuring the energy used by the arrangement.
The secondary circuit 120 comprises a fluid flow pipe 121 for providing heated fluid flow from the secondary side of the heat exchanger 111 to an area to be heated, such as a -a-living room of a private apartment. The fluid in the secondary fluid flow pipe 121 has been heated by the heat exchanger 111. The seoondary oirouit 120 also has a fluid return pipe 122 for returning fluid from the area to be heated to the secondary side of the heat exohanger ill. The secondary fluid flow pipe 121 is provided with a ball valve 123 for outting off flow when required.
The seoondary fluid return pipe 122 is provided with a temperature sensor 130. The temperature sensor 130 is electrically connected by connection wire 131 to a valve controller 132. The valve controller is connected to a flow valve 133 on the primary fluid return pipe 113. The valve controller 132 controls the variable opening and closing of valve 133 to control the flow through it.
For example, if the temperature measured by the temperature sensor 130 is higher than desired (for example, higher than 40 degrees Celsius), the valve controller 132 will at least partially close the valve 133 to reduce the flow through it -i.e. the flow in the primary fluid return pipe 113. This reduces the flow through the heat exchanger 111 and therefore reduces the temperature of the fluid in the secondary fluid flow pipe 121 and therefore reduces the temperature of the area to be heated and the temperature in the secondary fluid return pipe 122.
The arrangement 100 is also provided with various other features and elements, such as safety release valves, drain valves, pressure sensors, air escape valves, expansion vessels, circulation pumps, strainers and pressure controllers, not shown. The arrangement 100 is also connected to a domestic hot water heat exchanger, which provides heated fluid into the primary fluid flow pipe 112 and receives return fluid from the primary fluid return pipe 113.
Figure 2 shows a schematic view of a heating supply arrangement 200 according to a second embodiment of the invention. This heating supply arrangement 200 is very similar to the heating supply arrangement 100 of the first embodiment and the same reference numerals will be used to refer to like elements, but with the leading "1" replaced by a leading "2".
The heating supply arrangement 200 comprises a primary circuit 210 and a secondary circuit 220, each connected to opposite sides (primary and secondary) of a heat exchanger 211.
The primary circuit 210 comprises a fluid flow pipe 212 providing a heated fluid flow into the primary side of the heat exchanger 211. The primary cirouit 210 also has a fluid return pipe 213 for returning fluid from the primary side of the heat exchanger 211. Each of the primary fluid pipes 212, 213 is provided with a ball valve 214, 215 respectively for cutting off flow when required. The primary fluid return pipe 213 is also provided with an energy meter 216 for measuring the energy used by the arrangement.
The secondary circuit 220 comprises a fluid flow pipe 221 for providing heated fluid flow from the secondary side -10 -of the heat exchanger 211 to an area to be heated, such as a living room of a private apartment. The fluid in the secondary fluid flow pipe 221 has been heated by the heat exchanger 211. The secondary circuIt 220 also has a fluid return pipe 222 for returning fluid from the area to be heated to the secondary side of the heat exchanger 211. The secondary fluid flow pipe 221 is provided with a ball valve 223 for cutting off flow when required. The secondary fluid flow pipe 221 is also provided with a first temperature sensor 234.
The secondary fluid return pipe 222 is provided with a second temperature sensor 230. The second temperature sensor 230 is electrically connected by connection wire 231 to a valve controller 232. The valve controller is connected to a flow valve 233 on the primary fluid return pipe 213. The valve controller 232 controls the variable opening and closing of valve 233 to control the flow through it.
For example, if the temperature measured by the second temperature sensor 230 is higher than desired (for example, higher than 40 degrees Celsius), the valve controller 232 will at least partially close the valve 233 to reduce the flow through it -i.e. the flow in the primary fluid return pipe 213. This reduces the flow through the heat exchanger 211 and therefore reduces the temperature of the fluid in the secondary fluid flow pipe 221 and therefore reduces the temperature of the area to be heated and the temperature in the secondary fluid return pipe 222.
-11 -In addition, as the temperature is also measured in the secondary fluid flow pipe 221 by the first temperature sensor 234, the temperature drop over the secondary circuit (i.e. because of the energy taken by the area to be heated) can be calculated. Hence, the arrangement can be analysed and optimised to achieve a desired temperature drop, for example, an ideal temperature drop (from an efficiency point of view) of 70%.
The arrangement 200 is also provided with various other features and elements, such as safety release valves, drain valves, pressure sensors, air escape valves, expansion vessels, circulation pumps, strainers and pressure controllers, not shown. The arrangement 200 is also connected to a domestic hot water heat exchanger, which provides heated fluid into the primary fluid flow pipe 212 and receives return fluid from the primary fluid return pipe 213.
Whilst the present invention has been described and illustrated with reference to particular embodiments, it will be appreciated by those of ordinary skill in the art that the invention lends itself to many different variations not specifically illustrated herein.
Where In the foregoing description, integers or
elements are mentioned which have known, obvious or foreseeable equivalents, then such equivalents are herein incorporated as if individually set forth. Reference should be made to the claims for determining the true scope of the present invention, which should be construed so as to -12 -encompass any such equivalents. It will also be appreciated by the reader that integers or features of the invention that are described as preferable, advantageous, convenient or the like are optional and do not limit the scope of the independent claims. Moreover, it is to be understood that such optional integers or features, whilst of possible benefit in some embodiments of the invention, may not be desirable, and may therefore be absent, in other embodiments.

Claims (14)

  1. -13 -Claims 1. A heating supply arrangement for supplying heated fluid to an area to be heated, wherein the heating supply arrangement comprises: -a fluid flow pipe for receiving the heated fluid from the heat source and supplying the heated fluid to the area to be heated, and -a fluid return pipe for returning the fluid supplied by the fluid flow pipe from the area to be heated to the heat source, wherein the fluid return pipe is provided with a temperature sensor to measure the temperature of the fluid in the fluid return pipe, and wherein the temperature sensor is connected to a valve controller for controlling flow through a flow valve, such that the temperature and/or flow rate of the heated fluid in the fluid flow pipe can be adjusted according to the temperature measured by the temperature sensor.
  2. 2. A heating supply arrangement as claimed in claim 1, wherein the heat source is a heat exchanger for receiving a heated fluid from a primary heat circuit and exchanging heat from the primary heat circuit with a secondary heat circuit, the secondary heat circuit comprising the fluid flow pipe and fluid return pipe.
  3. 3. A heating supply arrangement as claimed in claim 2, wherein the flow valve is located in the primary heat circuit.
    -14 -
  4. 4. A heating supply arrangement as claimed in claim 3, wherein the flow valve is located on a fluid return pipe of the primary heat circuit.
  5. 5. A heating supply arrangement as claimed in any preceding claim, wherein the flow through the flow valve is controlled so as to keep the temperature measured by the temperature sensor substantially constant.
  6. 6. A heating supply arrangement as claimed in any preceding claim, wherein the heated fluid in the fluid flow pipe and fluid return pipe is water.
  7. 7. A heating supply arrangement as claimed in any preceding claim, wherein the area to be heated is a private apartment, and preferably a living area of the apartment.
  8. 8. A heating supply arrangement as claimed in any preceding claim, wherein the area to be heated is heated by a radiator or underfloor heating in the area, which receives the heated fluid from the heat source.
  9. 9. A heating supply arrangement as claimed in any preceding claim, wherein the heating supply arrangement comprises an energy meter for measuring the energy outputted to the area to be heated.
  10. 10. A heating supply arrangement as claimed in claim 9, when dependent on claim 2, wherein the energy meter is located in the primary heat circuit.
    -15 -
  11. 11. A heating supply arrangement as claimed in claim 10, wherein the energy meter is located on a fluid return pipe of the primary heat circuit.
  12. 12. A method of supplying heated fluid to an area to be heated, the method using a heating supply arrangement according to any of claims 1 to 11.
  13. 13. A method of supplying heated fluid to an area to be heated, the method comprising the following steps: -providing a heating supply arrangement comprising a fluid flow pipe and a fluid return pipe, -providing a temperature sensor on the fluid return pipe, -providing a valve controller for controlling flow through a flow valve, -receiving heated fluid from a heat source, in the fluid flow pipe, -supplying heated fluid to the area to be heated, -returning the supplied fluid to the heat source, -measuring the temperature of the fluid in the fluid return pipe, and -controlling the flow through the flow valve according to the temperature measured.
  14. 14. A heating supply arrangement or a method of supplying heated fluid to an area to be heated, substantially as herein described with reference to the accompanying drawings.
GB1412753.4A 2014-07-17 2014-07-17 A heating supply arrangement Withdrawn GB2528314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1412753.4A GB2528314A (en) 2014-07-17 2014-07-17 A heating supply arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1412753.4A GB2528314A (en) 2014-07-17 2014-07-17 A heating supply arrangement

Publications (2)

Publication Number Publication Date
GB201412753D0 GB201412753D0 (en) 2014-09-03
GB2528314A true GB2528314A (en) 2016-01-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1412753.4A Withdrawn GB2528314A (en) 2014-07-17 2014-07-17 A heating supply arrangement

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105757785A (en) * 2016-04-27 2016-07-13 苏州东剑智能科技有限公司 Heating pipe network operation monitoring device
CN110736129A (en) * 2019-10-24 2020-01-31 北京金房暖通节能技术股份有限公司 Intelligent balance regulation and control system and method for urban heat supply pipe networks

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189614A1 (en) * 1984-12-24 1986-08-06 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Apparatus and method for adjusting a central heating installation
DE19749623A1 (en) * 1996-11-11 1998-05-14 Rettig Laempoe Oy Control unit for central heating radiator with liquid circulation
WO2003023288A1 (en) * 2001-09-11 2003-03-20 Danfoss A/S Central heating installation
WO2009072759A2 (en) * 2007-12-04 2009-06-11 Kyungdong Network Co., Ltd. Method for controlling heating system
WO2009099046A1 (en) * 2008-02-04 2009-08-13 Daikin Industries, Ltd. Heating and hot water supply device
US20100276502A1 (en) * 2006-02-17 2010-11-04 Heat Energy & Associated Technology Limited Method And Apparatus For Commissioning And Balancing A Wet Central Heating System
WO2012013941A2 (en) * 2010-07-30 2012-02-02 Gregory Hall Central heating system
US20140284391A1 (en) * 2011-11-28 2014-09-25 Belimo Holding Ag Method for regulating the room temperature in a room or in a group comprising multiple rooms, and apparatus for carrying out the method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189614A1 (en) * 1984-12-24 1986-08-06 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Apparatus and method for adjusting a central heating installation
DE19749623A1 (en) * 1996-11-11 1998-05-14 Rettig Laempoe Oy Control unit for central heating radiator with liquid circulation
WO2003023288A1 (en) * 2001-09-11 2003-03-20 Danfoss A/S Central heating installation
US20100276502A1 (en) * 2006-02-17 2010-11-04 Heat Energy & Associated Technology Limited Method And Apparatus For Commissioning And Balancing A Wet Central Heating System
WO2009072759A2 (en) * 2007-12-04 2009-06-11 Kyungdong Network Co., Ltd. Method for controlling heating system
WO2009099046A1 (en) * 2008-02-04 2009-08-13 Daikin Industries, Ltd. Heating and hot water supply device
WO2012013941A2 (en) * 2010-07-30 2012-02-02 Gregory Hall Central heating system
US20140284391A1 (en) * 2011-11-28 2014-09-25 Belimo Holding Ag Method for regulating the room temperature in a room or in a group comprising multiple rooms, and apparatus for carrying out the method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105757785A (en) * 2016-04-27 2016-07-13 苏州东剑智能科技有限公司 Heating pipe network operation monitoring device
CN110736129A (en) * 2019-10-24 2020-01-31 北京金房暖通节能技术股份有限公司 Intelligent balance regulation and control system and method for urban heat supply pipe networks
CN110736129B (en) * 2019-10-24 2021-06-18 北京金房暖通节能技术股份有限公司 Intelligent balance regulation and control system and method for urban heat supply pipe network

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