JPS5997447A - Hot water supplying device - Google Patents
Hot water supplying deviceInfo
- Publication number
- JPS5997447A JPS5997447A JP57207095A JP20709582A JPS5997447A JP S5997447 A JPS5997447 A JP S5997447A JP 57207095 A JP57207095 A JP 57207095A JP 20709582 A JP20709582 A JP 20709582A JP S5997447 A JPS5997447 A JP S5997447A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- heat
- temperature
- heater
- water
- 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.)
- Pending
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
- F24D17/00—Domestic hot-water supply systems
- F24D17/0036—Domestic hot-water supply systems with combination of different kinds of heating means
- F24D17/0063—Domestic hot-water supply systems with combination of different kinds of heating means solar energy and conventional heaters
- F24D17/0068—Domestic hot-water supply systems with combination of different kinds of heating means solar energy and conventional heaters with accumulation of the heated water
-
- 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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、太陽熱の集熱手段にヒートポンプを用いた給
湯装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water heater using a heat pump as a means for collecting solar heat.
従来例の構成とその問題点
従来太陽熱集熱装置としては、太陽熱温水器や強制循環
式のンーラシステムが一般的に知られている。しかしい
ずれも日射量により集熱量集熱温度が影響されることか
ら、他に熱源機が不可欠であり、給湯装置として機器費
、工事費等が高くなり経済性に問題がある。Conventional configurations and their problems Solar water heaters and forced circulation type Nura systems are generally known as conventional solar heat collectors. However, in both cases, the amount of heat collected and the temperature of the collected heat are affected by the amount of solar radiation, so an additional heat source device is indispensable, and as a water heater, equipment costs, construction costs, etc. are high, leading to problems in economic efficiency.
従来の太陽熱集熱装置のもつ欠点全解決するものとして
、ヒートポンプを太陽熱の集熱手段とする集熱装置を提
案している。すなわち第１図に示す如く、フィンチュー
ブ熱交換器からなる集熱板１、冷媒圧縮機２．凝縮器３
．膨張弁４を順次環状連結し冷媒集熱回路を構成すると
ともに貯湯槽６．水循環ボンダ６．水加熱器７ｆｔ環状
連結してなる水加熱回路を構成し、前記冷媒集熱回路の
凝縮器３と水加熱回路の水加熱器７を伝熱関係に保持し
、集熱装置を構成する。In order to solve all of the drawbacks of conventional solar heat collectors, we are proposing a heat collector that uses a heat pump as a means of collecting solar heat. That is, as shown in FIG. 1, a heat collecting plate 1 consisting of a fin-tube heat exchanger, a refrigerant compressor 2. Condenser 3
．． Expansion valves 4 are sequentially connected in a ring to form a refrigerant heat collection circuit, and a hot water storage tank 6. Water circulation bonder6. A water heating circuit is formed by connecting a 7ft water heater in a ring, and the condenser 3 of the refrigerant heat collection circuit and the water heater 7 of the water heating circuit are held in a heat transfer relationship to form a heat collection device.
上記集熱装置において、冷媒圧縮機２．水循環ポンプ６
を駆動することによシ、集熱作用を行なう。すなわち、
冷媒圧縮機２で圧縮された高温。In the heat collecting device, the refrigerant compressor 2. water circulation pump 6
By driving, the heat collecting action is performed. That is,
High temperature compressed by refrigerant compressor 2.
高圧の冷媒ガスは凝縮器３に流入する。凝縮器３に流入
した吐出冷媒ガスは伝熱関係にある水加熱器アを流動す
る給湯水に放熱し、凝縮液化した後膨張弁４に至り、
膨張弁４を通過する際断熱膨張し減圧され低温、低圧の
未蒸発冷媒となり、集熱器１に流入する。ここで低温、
低圧の未蒸発冷媒は太陽熱、大気熱より吸熱し順次蒸発
ガス化し、集熱器１金流出し再び圧縮機２に吸入される
サイクルを繰り返すのである。一方針湯槽６内の給湯水
は水循環ポンプ６の作用により水加熱器７に送水され、
該水加熱器７にて冷媒の凝縮熱により加熱され昇温し再
び貯湯槽５に環流する。High pressure refrigerant gas flows into the condenser 3. The discharged refrigerant gas that has flowed into the condenser 3 radiates heat to the hot water flowing through the water heater A, which is in a heat transfer relationship, and after being condensed and liquefied, reaches the expansion valve 4.
When passing through the expansion valve 4, the refrigerant expands adiabatically and is depressurized to become a low-temperature, low-pressure unevaporated refrigerant, which flows into the heat collector 1. Here the low temperature
The low-pressure unevaporated refrigerant absorbs heat from the sun and the atmosphere, becomes evaporated and gasified, flows out of the heat collector 1, and is sucked into the compressor 2 again, repeating the cycle. On the other hand, the hot water in the needle tank 6 is sent to the water heater 7 by the action of the water circulation pump 6.
The water is heated by the heat of condensation of the refrigerant in the water heater 7 to raise its temperature, and then flows back into the hot water storage tank 5 again.
上記の如く太陽熱の集熱手段にヒートポンプを用いるこ
とによシ、低温集熱が行なわれるため集熱効率が向上す
る。又日射のない雨天や曇天時にも集熱が可能であるこ
となどから、集熱量の増大が計れる。しかし、冬季外気
温が低下した場合には集熱器１表面への着側を生じ集熱
運転が出来ないことがある。このため貯湯槽６の出口に
補助熱源８を接続しなければならない。すなわち、給湯
負荷に対して大部分ヒートポンプによる集熱量にて対応
出来るが、わずかの不足熱量に対して太きな補助熱源を
設けなければならず、ランニングコストは節減できるが
機器コストが高くなる欠点が残る。As described above, by using a heat pump as a means for collecting solar heat, low-temperature heat collection is performed, so that heat collection efficiency is improved. Furthermore, since it is possible to collect heat even on rainy or cloudy days when there is no sunlight, the amount of heat collected can be increased. However, when the outside temperature drops in winter, the heat collector 1 may adhere to the surface of the heat collector 1, and the heat collecting operation may not be possible. For this reason, an auxiliary heat source 8 must be connected to the outlet of the hot water storage tank 6. In other words, most of the hot water supply load can be handled by the amount of heat collected by the heat pump, but a large auxiliary heat source must be provided for the slight shortage of heat, which reduces running costs but increases equipment costs. remains.
発明の目的
本発明は太陽熱の集熱手段にヒートポンプを用いるもの
において、様器コストの低減と、給湯器としての機能を
満足する経済効果の高い給湯器を得んとするものである
。OBJECTS OF THE INVENTION The present invention aims to provide a water heater that uses a heat pump as a means of collecting solar heat and is highly economically effective, reducing the cost of the water heater and satisfying the function as a water heater.
発明の構成
上記目的を達成するため本発明の特徴とするところは、
圧縮機、凝縮器、膨張弁、集熱器を順次環状連結してな
る冷媒集熱回路と、貯湯槽、水循環ポ／ブ、水加熱器を
順次環状連結してなる水加熱回路金偏え冷媒集熱回路の
凝縮器と水加熱回路の水加熱器を伝熱関係に保持してな
る集熱回路を構成するとともに、前記貯湯槽の上層部に
第１湯温サーモと 湯温サーモによシ作動する第１補助
ヒータを、下層部に第２湯温サーモと該第２湯温サーモ
と外気温サーモによシ作動する第２補助ヒークを設ける
。Structure of the Invention In order to achieve the above object, the present invention is characterized by:
A refrigerant heat collection circuit consisting of a compressor, a condenser, an expansion valve, and a heat collector sequentially connected in a ring, and a water heating circuit consisting of a hot water storage tank, a water circulation port, and a water heater sequentially connected in a ring. A heat collecting circuit is constituted by holding a condenser of the heat collecting circuit and a water heater of the water heating circuit in a heat transfer relationship, and a first hot water temperature thermostat and a hot water temperature thermostat are installed in the upper layer of the hot water storage tank. A first auxiliary heater that operates is provided with a second hot water temperature thermostat and a second auxiliary heat that is operated by the second hot water temperature thermometer and the outside temperature thermostat in the lower layer.
上記構成により、外気温が設定値より低くなった場合に
は、冷媒圧縮機を停止し、第２補助ヒータによるヒータ
加熱により設定湯温せで加熱する。With the above configuration, when the outside air temperature becomes lower than the set value, the refrigerant compressor is stopped and the second auxiliary heater heats the water at the set water temperature.
又、貯湯層の上層部は第１湯温サーモと第１補助ヒーク
により常に一定の湯温に加熱されるように制御される。Further, the upper layer of the hot water storage layer is controlled to be always heated to a constant hot water temperature by the first hot water temperature thermometer and the first auxiliary heat.
実施例の説明 本発明の実施例を第２図及び第３図に基づき説明する。Description of examples An embodiment of the present invention will be described based on FIGS. 2 and 3.
１１１−Ｉ集熱器でありフィンチューブ式熱交喚器よシ
構成されている。２は冷媒圧縮機である。It is a 111-I heat collector and is composed of a fin-tube heat exchanger. 2 is a refrigerant compressor.
３は凝縮器、４は膨張弁であり、前記集熱器１の入口側
に位置１該集熱器１の出口配管に固定された感温筒４′
の温度により冷媒流量全制御するのである。前記集熱器
１．圧縮機２．凝縮器３．膨張弁４は順次配管接続され
冷媒集熱回路を構成する。６は断熱された貯湯槽、６は
水循環ポンプ、７は水加熱器であり、これらは順次連結
され水加熱回路を構成する。そして前記冷媒集熱回路の
凝縮器３と水加熱回路の水加熱器７とは伝熱関係に保持
される。具体的には２重管熱交換器の如く、内管を凝縮
器３、外管を水加熱器７とすることにより達成する。９
は前記貯湯槽６の上層部に設けられた第１湯温サーモ、
１０は前記第１湯温サーモにより作動する第１補助ヒー
タである。１１は前記貯湯槽５の下層部に設けた第２湯
温サーモ、１２は前記第２湯温サーモ、１１と外気温サ
ーモ１３により作動する第２補助ヒータである。１４は
高圧スイッチである。１６は運転スイッチである。3 is a condenser, and 4 is an expansion valve, which is located on the inlet side of the heat collector 1. A temperature sensing cylinder 4' is fixed to the outlet pipe of the heat collector 1.
The refrigerant flow rate is fully controlled based on the temperature. The heat collector 1. Compressor 2. Condenser 3. The expansion valves 4 are sequentially connected via piping to form a refrigerant heat collection circuit. 6 is an insulated hot water storage tank, 6 is a water circulation pump, and 7 is a water heater, which are connected in sequence to form a water heating circuit. The condenser 3 of the refrigerant heat collection circuit and the water heater 7 of the water heating circuit are maintained in a heat transfer relationship. Specifically, this is achieved by using a double tube heat exchanger, with the inner tube serving as the condenser 3 and the outer tube serving as the water heater 7. 9
is a first hot water temperature thermometer provided in the upper part of the hot water storage tank 6;
10 is a first auxiliary heater operated by the first hot water temperature thermostat. 11 is a second hot water temperature thermostat provided in the lower part of the hot water storage tank 5; 12 is a second auxiliary heater operated by the second hot water thermostat 11 and the outside temperature thermostat 13; 14 is a high voltage switch. 16 is an operation switch.
次に本発明の詳細な説明する。運転スイッチ１６を投入
すると、外気温度が高い場合、外気温サーモ１３によジ
、冷媒圧縮機２及び水循環ポンプ６が作動する。これに
より冷媒圧縮機２で高温高圧に圧縮された冷媒ガスは凝
縮器３に流入し。Next, the present invention will be explained in detail. When the operation switch 16 is turned on, if the outside air temperature is high, the outside temperature thermostat 13 operates, and the refrigerant compressor 2 and water circulation pump 6 are activated. As a result, the refrigerant gas compressed to high temperature and high pressure by the refrigerant compressor 2 flows into the condenser 3.
伝熱関係にある水加熱器７を水循環ポンプ６の作用によ
シ流動する給湯水に放熱し、凝縮液化する。The water heater 7, which is in a heat transfer relationship, radiates heat to the flowing hot water by the action of the water circulation pump 6, and the water is condensed and liquefied.
次いで膨張弁４に至り、膨張弁４を通過する際断熱膨張
し減圧され、低温、低圧の未蒸発冷媒となり集熱器１に
流入する。集熱器１に流入した未蒸発冷媒は太陽熱、大
気熱より吸熱し、順次蒸発ガス化し、集熱器１を流出し
再び圧縮機２に流入し以下同様のサイクルを繰シ返すの
である。一方針湯槽５内の給湯水は水循環ポンプ６０作
用によシ水加熱器７に送水され冷媒の凝縮熱によシ加熱
昇温し、再び貯湯槽５に環流し、第２湯温サーモ１１が
設定温度に達すると冷媒圧縮機２ツ水循環ポンプ６を停
止する。The refrigerant then reaches the expansion valve 4, where it expands adiabatically and is depressurized as it passes through the expansion valve 4, becoming a low-temperature, low-pressure unevaporated refrigerant and flowing into the heat collector 1. The unevaporated refrigerant that has flowed into the heat collector 1 absorbs heat from the sun and the atmosphere, is sequentially evaporated and gasified, flows out of the heat collector 1, flows into the compressor 2 again, and repeats the same cycle. On the other hand, the hot water in the needle hot water tank 5 is sent to the water heater 7 by the action of the water circulation pump 60, heated and heated by the condensation heat of the refrigerant, and then returned to the hot water storage tank 5, where the second hot water temperature thermostat 11 is activated. When the set temperature is reached, the two refrigerant compressors and the water circulation pump 6 are stopped.
次に外気温度が低い場合には、外気温サーモ１３の作用
により第２補助ヒータ１２ＩＣ通電され、ヒータによる
加熱運転全行ない、前記同様第２湯温サーモ１１が設定
温度に達すると第２補助ヒーク１２を停止するのである
。Next, when the outside temperature is low, the second auxiliary heater 12IC is energized by the action of the outside temperature thermometer 13, and the heater performs the entire heating operation, and when the second hot water temperature thermometer 11 reaches the set temperature as described above, the second auxiliary heater 12IC is turned on. 12 will be stopped.
次に貯湯槽６の上層部に設けられた第１湯温サーモ９及
び第１補助ヒータ１０は、前記外気温サーモ１３ｖｃよ
る冷媒圧縮機２又は第２補助ヒーク１２による加熱運転
に関係なく貯湯槽５の上層部湯温か第１湯温サーモ９の
設定温度以下であれば通電され給湯水を加熱昇温させる
作用を行なうのである。Next, the first hot water temperature thermostat 9 and the first auxiliary heater 10 provided in the upper part of the hot water storage tank 6 are operated in the hot water storage tank regardless of the heating operation by the refrigerant compressor 2 or the second auxiliary heater 12 by the outside temperature thermostat 13vc. If the hot water temperature in the upper layer 5 is below the set temperature of the first hot water temperature thermometer 9, electricity is applied to heat and raise the temperature of the hot water.
以上説明の如く本発明によれば、外気温度が低く、ヒー
トポンプによる集熱運転が不可能な場合には、第２補助
ヒータ１２によるヒータ加熱運転によシ給湯熱量を確保
することが出来る。又、貯湯槽５の上層部に設けた第１
補助ヒータ１０により常に貯湯層上部の一定湯量を設定
温度に沸き上げておくことにより、給湯倉荷パターンに
応じた給湯特性を持たせることが出来る。これらは貯湯
槽に補助ヒータを付は加えることによシ達成出来ること
から、熱源機を別設する従来の給湯装置に比し機器コス
トの引き下げが可能とな９経済性を高めることが出来る
のである。As described above, according to the present invention, when the outside air temperature is low and heat collecting operation by the heat pump is impossible, the heat amount for hot water supply can be ensured by the heater heating operation by the second auxiliary heater 12. In addition, a first
By always boiling a constant amount of hot water in the upper part of the hot water storage layer to a set temperature using the auxiliary heater 10, hot water supply characteristics can be provided according to the hot water supply warehouse pattern. These can be achieved by attaching or adding an auxiliary heater to the hot water storage tank, making it possible to reduce equipment costs and increase economic efficiency compared to conventional water heaters that require a separate heat source. be.
発明の効果
本発明は、圧縮機、凝縮器、膨張弁、集熱器を順次環状
連結してなる冷媒集熱回路と、貯湯槽。Effects of the Invention The present invention provides a refrigerant heat collection circuit in which a compressor, a condenser, an expansion valve, and a heat collector are sequentially connected in a ring, and a hot water storage tank.
水循環ボング、水加熱器を順次連結してなる水加熱１１
路を備え、前記冷媒集熱回路の凝縮器と水加熱回路の水
加熱器を伝熱関係に保持し、集熱回路を構成するととも
に、前記貯湯槽の下層部に第２湯温サーモと該第２湯温
サーモと外気温サーモにより作動する第２補助ヒータを
、又貯湯槽の上層部に第１湯温サーモと 第１湯温サー
モにより作動する第１補助ヒータをそれぞれ設置するこ
とによｐｌ
外気温度が低い場合には、ヒートポンプによる集熱運転
を停止し、補助ヒータによる給湯水の加熱を行ない、給
湯負荷熱量を確保することができる。Water heating 11 consisting of a water circulation bong and a water heater connected in sequence
The condenser of the refrigerant heat collection circuit and the water heater of the water heating circuit are held in a heat transfer relationship to form a heat collection circuit, and a second hot water temperature thermostat is provided in the lower part of the hot water storage tank. By installing a second auxiliary heater operated by the second hot water temperature thermostat and the outside temperature thermostat, and by installing a first auxiliary heater operated by the first hot water temperature thermostat and the first hot water temperature thermostat in the upper part of the hot water tank, respectively. pl When the outside air temperature is low, the heat collecting operation by the heat pump is stopped, and the auxiliary heater heats the hot water supply, thereby making it possible to secure the hot water supply load heat amount.
貯湯槽上層部の一定湯量は常に一定の湯温に沸き上げら
れており、早朝の給湯負荷に対応出来、湯切れを生ずる
ことがない。The constant amount of hot water in the upper layer of the hot water storage tank is always heated to a constant temperature, so it can handle the early morning hot water supply load and never run out of hot water.
これらは貯湯槽に複数の補助ヒータを設置することによ
り達成出来るため、他に補助熱源を必要とする従来例に
比し、機器コス）ｔ−低減させることが出来、経済性を
高めることが出来る。These can be achieved by installing multiple auxiliary heaters in the hot water storage tank, so compared to conventional systems that require other auxiliary heat sources, equipment costs can be reduced and economical efficiency can be increased. .
第１図は従来の給湯回路図、第２図は本発明の給湯装置
構成図、第３図は運転制御回路図である。
１・・・・・・集熱器、２・・・・・・冷媒圧縮機、３
・・・・・・凝縮器％４・・・・・・膨張弁、４′・・
・・・・感温筒、６・・・・・・貯湯槽、６・・・・・
・水循環ポンプ、７・・・・・・水加熱器、９・・・・
・・第１湯温サーモ、１ｏ・・・・・・第１補助ヒータ
、１１・・・・・・第２湯温サーモ、１２・・・・・・
第２補助ヒータ、１３・・・・・・外気温サーモ、１４
・・・・・・圧力スイッチ、１６・・・・・・運転スイ
ッチ。FIG. 1 is a conventional hot water supply circuit diagram, FIG. 2 is a configuration diagram of a water heater according to the present invention, and FIG. 3 is an operation control circuit diagram. 1... Heat collector, 2... Refrigerant compressor, 3
...Condenser %4...Expansion valve, 4'...
...Temperature cylinder, 6...Hot water tank, 6...
・Water circulation pump, 7...Water heater, 9...
...First water temperature thermometer, 1o...First auxiliary heater, 11...Second water temperature thermometer, 12...
Second auxiliary heater, 13...Outside temperature thermostat, 14
...Pressure switch, 16...Operation switch.
Claims (1)
る冷媒集熱回路と、貯湯槽、水循環ポンプ曹水加熱器を
順次連結してなる水加熱回路を備え、前記冷媒集熱回路
の凝縮器と水加熱回路の水加熱器を伝熱関係に保持し集
熱装置ｅ［成し、前記貯湯槽の上層部に爾１湯温サーモ
と、二の湯温サーモにより作動する第１補助と−タを、
下層部に第２湯温サーモと一つ第２湯温サーモと外気温
サーモにより作動する第２補助ヒータを設けてなる給湯
装置。The refrigerant heat collection circuit includes a refrigerant heat collection circuit in which a compressor, a condenser, an expansion valve, and a heat collector are successively connected in an annular manner, and a water heating circuit in which a hot water storage tank, a water circulation pump, and a soda water heater are successively connected. The condenser of the circuit and the water heater of the water heating circuit are maintained in a heat transfer relationship, and a heat collecting device e [is formed. 1 auxiliary and -ta,
This water heater is provided with a second hot water temperature thermostat and a second auxiliary heater operated by the second hot water temperature thermostat and the outside temperature thermostat in the lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57207095A JPS5997447A (en) | 1982-11-25 | 1982-11-25 | Hot water supplying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57207095A JPS5997447A (en) | 1982-11-25 | 1982-11-25 | Hot water supplying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5997447A true JPS5997447A (en) | 1984-06-05 |
Family
ID=16534111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57207095A Pending JPS5997447A (en) | 1982-11-25 | 1982-11-25 | Hot water supplying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5997447A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506465A (en) * | 2011-09-29 | 2012-06-20 | 西安交通大学 | Composite solar hot water system with heat pumps |
| GB2550584A (en) * | 2016-05-23 | 2017-11-29 | The Greenline Renewables Ltd | Solar Heating System |
-
1982
- 1982-11-25 JP JP57207095A patent/JPS5997447A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506465A (en) * | 2011-09-29 | 2012-06-20 | 西安交通大学 | Composite solar hot water system with heat pumps |
| GB2550584A (en) * | 2016-05-23 | 2017-11-29 | The Greenline Renewables Ltd | Solar Heating System |
| GB2550584B (en) * | 2016-05-23 | 2020-01-01 | The Greenline Renewables Ltd | Solar Heating System |
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