TW201917334A - Water heater circulation preheating system and controlling method therefor - Google Patents
Water heater circulation preheating system and controlling method therefor Download PDFInfo
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本發明涉及一種熱水器，尤其涉及一種具有預熱功能的熱水器循環預熱系統及其控制方法。 The invention relates to a water heater, in particular to a water heater circulating preheating system with preheating function and a control method thereof.
目前市售熱水器預熱回水系統，預熱完成的斷水方式皆利用泵停止運轉，使得水流停止方式斷水，此斷水方式管路還是導通，無法完全斷開，預熱完成的熱水還是有可能流入冷水管，造成水資源浪費。 At present, the water heater preheating and returning water system is commercially available, and the water shut-off method completed by the preheating is stopped by the pump, so that the water flow stop mode is broken, and the water cut mode pipeline is still turned on, and the hot water can be completely disconnected. It is still possible to flow into the cold water pipe, causing waste of water resources.
綜上所述，本發明人有感上述缺陷可改善，乃特潛心研究並配合學理的應用，終於提出一種設計合理且有效改善上述缺陷的本發明。 In summary, the present inventors have felt that the above-mentioned defects can be improved, and the present invention has been put forward with great interest in designing and coordinating the above-mentioned defects.
本發明所要解決的技術問題，在於提供一種熱水器循環預熱系統及其控制方法，只要水達到設定溫度，就切斷水使預熱回水系統停止運轉，達到熱水管與冷水管切斷導通功能，以避免預熱完成的熱水流入冷水管。 The technical problem to be solved by the present invention is to provide a water heater circulating preheating system and a control method thereof. As long as the water reaches a set temperature, the water is shut off to stop the preheating and returning water system, and the hot water pipe and the cold water pipe are cut off and turned on. To prevent the hot water from being warmed up into the cold water pipe.
為了解決上述的技術問題，本發明提供一種熱水器循環預熱系統，包括：熱水器；冷水管，該冷水管的一端連接於該熱水器， 該冷水管另連接於一冷水源；熱水管，該熱水管的一端連接於該熱水器；出水裝置，該出水裝置具有一冷水端及一熱水端，該出水裝置的冷水端連接於該冷水管的另一端，該出水裝置的熱水端連接於該熱水管的另一端；循環泵，該循環泵裝設於該冷水管上，能控制該循環泵運轉將冷水加壓讓冷水進入該熱水器進行預熱；連接管，該連接管的一端連接於該冷水管的另一端，該連接管的另一端連接於該熱水管的另一端；以及溫度感應斷水裝置，該溫度感應斷水裝置裝設於該連接管上，預熱中該溫度感應斷水裝置未達設定溫度時，該溫度感應斷水裝置為開路導通狀態持續循環預熱，該溫度感應斷水裝置已達預定溫度時，該溫度感應斷水裝置為斷路狀態切斷水流，使該循環泵停止運轉。 In order to solve the above technical problem, the present invention provides a water heater circulating preheating system, comprising: a water heater; a cold water pipe, one end of the cold water pipe is connected to the water heater, the cold water pipe is further connected to a cold water source; the hot water pipe, the hot water pipe One end of the water heater is connected to the water heater; the water outlet device has a cold water end and a hot water end, and the cold water end of the water discharge device is connected to the other end of the cold water pipe, and the hot water end of the water discharge device is connected to the hot water pipe The other end of the circulation pump is installed on the cold water pipe to control the operation of the circulating pump to pressurize cold water to allow cold water to enter the water heater for preheating; the connecting pipe has one end connected to the cold water pipe The other end of the connecting pipe is connected to the other end of the hot water pipe; and a temperature sensing water shutoff device is installed on the connecting pipe, and the temperature sensing water shutoff device is not preheated When the set temperature is reached, the temperature sensing water shutoff device is continuously cycled and preheated in an open state, and the temperature sensing water shutoff device has reached a predetermined temperature, the temperature sensing The water shutoff device cuts off the water flow in the open state, and stops the circulation pump.
為了解決上述技術問題，本發明還提供一種熱水器循環預熱系統的控制方法，包括步驟：提供一種熱水器循環預熱系統，包括熱水器、冷水管、熱水管、出水裝置、循環泵、連接管及溫度感應斷水裝置，該冷水管的一端連接於該熱水器，該冷水管另連接於一冷水源，該熱水管的一端連接於該熱水器，該出水裝置具有一冷水端及一熱水端，該出水裝置的冷水端連接於該冷水管的另一端，該出水裝置的熱水端連接於該熱水管的另一端，該循環泵裝設於該冷水管上，該連接管的一端連接於該冷水管的另一端，該連接管的另一端連接於該熱水管的另一端，該溫度感應斷水裝置裝設於該連接管上；判斷是否要進行預熱的操作，若不進行預熱的操作，則進行一般生活熱水使用的操作；若欲進行預熱的操作，則接著啟動該熱水器及該循環泵，將該冷水管及該熱水管中的冷水經由該連接管及該循環泵抽回該熱水器，以進行循環預熱的操作，並以該溫度感應斷水裝置進行溫度偵測，以判斷預熱中循環溫度是否已達設定溫度；若預熱中該溫度感應斷水裝置未達設定溫度，該溫度感應斷水裝置為開路導通狀態持續熱水循環預熱；若預熱中循環溫度已達設定溫度，該溫度感應斷水裝置 為斷路狀態，以切斷熱水，同時關閉該熱水器及該循環泵，以停止預熱循環。 In order to solve the above technical problem, the present invention also provides a control method for a water heater circulating preheating system, comprising the steps of: providing a water heater circulating preheating system, including a water heater, a cold water pipe, a hot water pipe, a water outlet device, a circulation pump, a connecting pipe and a temperature Inductive water shutoff device, one end of the cold water pipe is connected to the water heater, the cold water pipe is further connected to a cold water source, one end of the hot water pipe is connected to the water heater, the water discharge device has a cold water end and a hot water end, the water outlet The cold water end of the device is connected to the other end of the cold water pipe, and the hot water end of the water discharge device is connected to the other end of the hot water pipe. The circulating pump is installed on the cold water pipe, and one end of the connecting pipe is connected to the cold water pipe. The other end of the connecting pipe is connected to the other end of the hot water pipe, and the temperature sensing water shutoff device is installed on the connecting pipe; determining whether the preheating operation is to be performed, if the preheating operation is not performed, Then performing the operation of the general domestic hot water; if the preheating operation is to be performed, then the water heater and the circulation pump are started, the cold water pipe and the hot water are The cold water is pumped back to the water heater via the connecting pipe and the circulating pump to perform a cycle preheating operation, and the temperature sensing water shutoff device performs temperature detection to determine whether the circulating temperature in the preheating has reached a set temperature; If the temperature sensing water shutoff device does not reach the set temperature during the preheating, the temperature sensing water shutoff device is in an open state and continues to be hot water circulating preheating; if the circulating temperature in the preheating has reached a set temperature, the temperature sensing water shutoff device is The open circuit state is to cut off the hot water, and the water heater and the circulation pump are turned off to stop the preheating cycle.
本發明的有益效果： The beneficial effects of the invention:
本發明設置有循環泵、連接管及溫度感應斷水裝置，當啟動循環泵動作時，能將冷水管及熱水管中的冷水經由連接管及循環泵抽回熱水器，讓管路中冷水變為熱水後，再輸送至出水裝置，開啟出水裝置立即有熱水，以減少水資源的浪費。本發明在連接管上裝設有溫度感應斷水裝置，當啟動循環泵預熱，熱水管末端的溫度感應斷水裝置已達設定溫度時，該溫度感應斷水裝置會切斷水，停止循環預熱系統，此時該溫度感應斷水裝置為斷水狀態，預熱完成的熱水不會流入冷水管，以避免造成水資源浪費。 The invention is provided with a circulation pump, a connecting pipe and a temperature-sensing water-cutting device. When the circulating pump is activated, the cold water in the cold water pipe and the hot water pipe can be pumped back to the water heater through the connecting pipe and the circulation pump, so that the cold water in the pipeline becomes After the hot water is sent to the water outlet device, the water outlet device is turned on to immediately have hot water to reduce the waste of water resources. The invention is provided with a temperature-sensing water-cutting device on the connecting pipe. When the circulating pump is preheated and the temperature-sensing water-breaking device at the end of the hot water pipe has reached the set temperature, the temperature-sensing water-cutting device cuts off the water and stops the circulation. The preheating system, at this time, the temperature sensing water shutoff device is in a water cut state, and the hot water completed by the preheating does not flow into the cold water pipe to avoid waste of water resources.
為使能更進一步瞭解本發明的特徵及技術內容，請參閱以下有關本發明的詳細說明與附圖，然而附圖僅提供參考與說明用，並非用來對本發明加以限制者。 For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.
1‧‧‧熱水器 1‧‧‧Water heater
2‧‧‧冷水管 2‧‧‧ cold water pipes
3‧‧‧熱水管 3‧‧‧ hot water pipe
4‧‧‧出水裝置 4‧‧‧Water outlet
41‧‧‧冷水端 41‧‧‧ cold water end
42‧‧‧熱水端 42‧‧‧ hot water end
5‧‧‧循環泵 5‧‧‧Circulating pump
6‧‧‧連接管 6‧‧‧Connecting tube
7‧‧‧溫度感應斷水裝置 7‧‧‧Temperature sensing water shutoff device
71‧‧‧閥體 71‧‧‧ valve body
711‧‧‧入水口 711‧‧‧ water inlet
712‧‧‧出水口 712‧‧‧Water outlet
72‧‧‧閥芯 72‧‧‧Spool
73‧‧‧感溫元件 73‧‧‧ Temperature sensing element
74‧‧‧阻斷器 74‧‧‧Blocker
75‧‧‧推動元件 75‧‧‧Promoting components
8‧‧‧冷水源 8‧‧‧ cold water source
9‧‧‧逆止閥 9‧‧‧ check valve
圖1為本發明熱水器循環預熱系統的示意圖。 1 is a schematic view of a water heater circulating preheating system of the present invention.
圖2為本發明溫度感應斷水裝置的示意圖。 2 is a schematic view of a temperature sensing water shutoff device of the present invention.
圖3為本發明熱水器循環預熱系統的安裝示意圖。 3 is a schematic view showing the installation of the water heater circulating preheating system of the present invention.
圖4為本發明循環預熱系統的控制方法的流程圖。 4 is a flow chart of a control method of the cycle preheating system of the present invention.
圖5為本發明循環預熱系統的控制方法的流程圖(啟動流程)。 Fig. 5 is a flow chart (starting flow) of the control method of the circulating preheating system of the present invention.
圖6為本發明循環預熱系統的控制方法的流程圖(關閉流程)。 Figure 6 is a flow chart (closing process) of the control method of the circulating preheating system of the present invention.
請參閱圖1，本發明提供一種熱水器循環預熱系統，包括熱水器1、冷水管2、熱水管3、出水裝置4、循環泵5、連接管6及溫度感應斷水裝置7。 Referring to FIG. 1 , the present invention provides a water heater circulating preheating system, including a water heater 1, a cold water pipe 2, a hot water pipe 3, a water outlet device 4, a circulation pump 5, a connecting pipe 6, and a temperature sensing water shutoff device 7.
該熱水器1可為一瓦斯熱水器，該瓦斯熱水器的內部包含有風機、燃燒器及熱交換器(圖略)等，燃燒器可用以加熱熱交換器，使冷水可進入熱交換器進行熱交換，再行排出熱水使用，該熱水器1屬於現有技術，且本發明並不限制熱水器1的構造，故不再加以贅述。 The water heater 1 can be a gas-fired water heater, the interior of the gas-water heater includes a fan, a burner and a heat exchanger (not shown), and the burner can be used to heat the heat exchanger so that the cold water can enter the heat exchanger for heat exchange. The hot water is discharged again, and the water heater 1 belongs to the prior art, and the present invention does not limit the configuration of the water heater 1, and therefore will not be described again.
該冷水管2的一端連接於熱水器1(冷水進口)，且冷水管2另連接於一冷水源8，可通過冷水管2輸入冷水至熱水器1，使冷水可進入熱交換器1進行熱交換，再行排出熱水使用。該熱水管3的一端連接於熱水器1(熱水出口)，使熱水器1產生的熱水可通過熱水管3向外輸出。該循環泵5裝設於冷水管2上，可控制循環泵5運轉將冷水加壓讓冷水進入熱水器1進行預熱。 One end of the cold water pipe 2 is connected to the water heater 1 (cold water inlet), and the cold water pipe 2 is further connected to a cold water source 8. The cold water can be input into the water heater 1 through the cold water pipe 2, so that the cold water can enter the heat exchanger 1 for heat exchange. Use hot water again. One end of the hot water pipe 3 is connected to the water heater 1 (hot water outlet), so that the hot water generated by the water heater 1 can be output to the outside through the hot water pipe 3. The circulation pump 5 is installed on the cold water pipe 2, and can control the operation of the circulation pump 5 to pressurize the cold water to allow the cold water to enter the water heater 1 for preheating.
該出水裝置4連接於冷水管2及熱水管3的另一端，亦即出水裝置4具有一冷水端41及一熱水端42，出水裝置4的冷水端41連接於冷水管2的另一端，出水裝置4的熱水端42連接於熱水管3的另一端，可以經由冷水管2輸送冷水至出水裝置4，可以經由熱水管3輸送熱水至出水裝置4。該出水裝置4可為水龍頭或蓮蓬頭等裝置，出水裝置4可設置於流理台、浴室、淋浴設備或洗臉盆等處，用於輸出欲使用的水，出水裝置4的型式及構造並不限制，可因應需要而加以變化。 The water outlet device 4 is connected to the other end of the cold water pipe 2 and the hot water pipe 3, that is, the water outlet device 4 has a cold water end 41 and a hot water end 42, and the cold water end 41 of the water discharge device 4 is connected to the other end of the cold water pipe 2, The hot water end 42 of the water discharge device 4 is connected to the other end of the hot water pipe 3, and cold water can be sent to the water discharge device 4 via the cold water pipe 2, and the hot water can be sent to the water discharge device 4 via the hot water pipe 3. The water outlet device 4 can be a device such as a faucet or a shower head. The water outlet device 4 can be disposed at a flow table, a bathroom, a shower device or a washbasin to output water to be used. The type and structure of the water outlet device 4 are not limited. Can be changed as needed.
該連接管6設置於冷水管2及熱水管3之間，連接管6的一端連接於冷水管2的另一端，連接管6的另一端連接於熱水管3的另一端。該溫度感應斷水裝置7裝設於連接管6上，可使溫度感應斷水裝置7連通於熱水管3的末端。另於連接管6上可裝設一逆止閥9，該逆止閥9位於出水裝置4的熱水端42及溫度感應斷水裝置7之間，以避免冷水進入熱水管3。預熱中溫度感應斷水裝置7未達設定溫度時，溫度感應斷水裝置7為開路導通狀態持續循環預熱；當溫度感應斷水裝置7已達預定溫度時，溫度感應斷水裝置7為斷路狀態切斷水流，使循環泵5停止運轉。 The connecting pipe 6 is disposed between the cold water pipe 2 and the hot water pipe 3, one end of the connecting pipe 6 is connected to the other end of the cold water pipe 2, and the other end of the connecting pipe 6 is connected to the other end of the hot water pipe 3. The temperature sensing water shutoff device 7 is mounted on the connecting pipe 6, and the temperature sensing water shutoff device 7 can be connected to the end of the hot water pipe 3. Further, a check valve 9 can be installed on the connecting pipe 6, and the check valve 9 is located between the hot water end 42 of the water discharge device 4 and the temperature sensing water shutoff device 7 to prevent cold water from entering the hot water pipe 3. When the temperature sensing water shutoff device 7 does not reach the set temperature during the preheating, the temperature sensing water shutoff device 7 is continuously cycled and preheated in the open state; when the temperature sensing water shutoff device 7 has reached the predetermined temperature, the temperature sensing water shutoff device 7 is In the open state, the water flow is shut off, and the circulation pump 5 is stopped.
請參閱圖2，本實施例進一步揭示溫度感應斷水裝置7的具體結構，在本實施例中，該溫度感應斷水裝置7包含一閥體71、一閥芯72及一感溫元件73。該閥體71為一中空體，閥體71的兩側分別設有一入水口711及一出水口712，入水口711及出水口712與閥體71的內部相連通。該閥芯72可移動地設置於閥體71的內部，且閥芯72上設有一阻斷器74。該感溫元件73可為熱敏元件(如石蠟)，該感溫元件73設置於閥體71的內部，且感溫元件73連接於閥芯72，感溫元件73可接收溫度變化訊息而進行熱脹冷縮的動作，藉以推動閥芯72在閥體71的內部移動，使阻斷器74能控制入水口711及出水口712的開度。該閥體71的內部亦可設有一推動元件75(如彈性元件)，該推動元件75抵觸於閥芯72，能提供閥芯72復位的彈力。感溫元件73及推動元件75可為機械式控制，但不予以限制，例如也可為電子式控制。 Referring to FIG. 2, the embodiment further discloses a specific structure of the temperature sensing water shutoff device 7. In the embodiment, the temperature sensing water shutoff device 7 includes a valve body 71, a valve core 72 and a temperature sensing element 73. The valve body 71 is a hollow body, and a water inlet 711 and a water outlet 712 are respectively disposed on both sides of the valve body 71. The water inlet 711 and the water outlet 712 communicate with the inside of the valve body 71. The spool 72 is movably disposed inside the valve body 71, and a plug 74 is disposed on the spool 72. The temperature sensing element 73 can be a heat sensitive element (such as paraffin), the temperature sensing element 73 is disposed inside the valve body 71, and the temperature sensing element 73 is connected to the valve core 72, and the temperature sensing element 73 can receive the temperature change message. The action of thermal expansion and contraction causes the valve core 72 to move inside the valve body 71, so that the blocker 74 can control the opening degree of the water inlet 711 and the water outlet 712. The inner portion of the valve body 71 may also be provided with a pushing member 75 (such as a resilient member) that abuts against the spool 72 to provide an elastic force for resetting the spool 72. The temperature sensing element 73 and the urging element 75 can be mechanically controlled, but are not limited, and for example, can also be electronically controlled.
是以，可將水輸入該溫度感應斷水裝置7，當水溫未達設定溫度時，閥體71的入水口711及出水口712為開路。當感溫元件73量測到水溫高於設定溫度時，感溫元件73會連動阻斷器74阻斷閥體71的入水口711及出水口712。當感溫元件73量測到水溫低於設定溫度時，感溫元件73會連動阻斷器74打開閥體71的入水口711及出水口712。 Therefore, water can be input to the temperature sensing water shutoff device 7. When the water temperature does not reach the set temperature, the water inlet 711 and the water outlet 712 of the valve body 71 are open. When the temperature sensing element 73 measures that the water temperature is higher than the set temperature, the temperature sensing element 73 interlocks the blocker 74 to block the water inlet 711 and the water outlet 712 of the valve body 71. When the temperature sensing element 73 measures that the water temperature is lower than the set temperature, the temperature sensing element 73 interlocks the blocker 74 to open the water inlet 711 and the water outlet 712 of the valve body 71.
請參閱圖3，本實施例進一步揭示設有多個出水裝置4，該些出水裝置4可分別設置於浴室及廚房等處。 Referring to FIG. 3, the embodiment further discloses that a plurality of water outlet devices 4 are provided, and the water outlet devices 4 can be respectively disposed in a bathroom, a kitchen, or the like.
請參閱圖1及4，本實施例提供一種熱水器循環預熱系統的控制方法，包括步驟如下： 首先，提供一種如上所述的熱水器循環預熱系統，其包括熱水器1、冷水管2、熱水管3、出水裝置4、循環泵5、連接管6 及溫度感應斷水裝置7。由於該熱水器循環預熱系統與上述實施例相同，不再加以贅述。 1 and 4, this embodiment provides a control method for a water heater circulating preheating system, including the following steps: First, a water heater circulating preheating system as described above is provided, which includes a water heater 1, a cold water pipe 2, and a hot water pipe. 3. The water discharge device 4, the circulation pump 5, the connection pipe 6, and the temperature induction water shutoff device 7. Since the water heater circulating preheating system is the same as the above embodiment, it will not be described again.
接著，在待機的狀態下，判斷是否要進行預熱的操作，若不進行預熱的操作，則進行一般生活熱水使用的操作，亦即熱水器1依照原有的操作方式運作；若欲進行預熱的操作，則接著啟動熱水器1及循環泵5，將冷水管2及熱水管3中的冷水經由連接管6及循環泵5抽回熱水器1，以進行循環預熱的操作，並以溫度感應斷水裝置7進行溫度偵測，以判斷預熱中循環溫度是否已達設定溫度；若預熱中溫度感應斷水裝置7未達設定溫度，溫度感應斷水裝置7為開路導通狀態持續熱水循環預熱；若預熱中循環溫度已達設定溫度，該溫度感應斷水裝置7為斷路狀態，以切斷熱水，同時關閉熱水器1及循環泵5，以停止預熱循環。另，亦可通知使用者預熱完成，可開水使用。 Next, in the standby state, it is determined whether or not the preheating operation is to be performed. If the preheating operation is not performed, the operation of the general domestic hot water is performed, that is, the water heater 1 operates according to the original operation mode; In the preheating operation, the water heater 1 and the circulation pump 5 are then activated, and the cold water in the cold water pipe 2 and the hot water pipe 3 is pumped back to the water heater 1 via the connecting pipe 6 and the circulation pump 5 to perform the cycle preheating operation and the temperature. The induction water shutoff device 7 performs temperature detection to determine whether the circulating temperature in the preheating has reached the set temperature; if the temperature sensing water shutoff device 7 does not reach the set temperature during the preheating, the temperature sensing water shutoff device 7 is in an open state and continues to be hot. The water circulation is preheated; if the circulation temperature has reached the set temperature during the preheating, the temperature sensing water shutoff device 7 is in an open state to cut off the hot water, and the water heater 1 and the circulation pump 5 are turned off to stop the preheating cycle. In addition, the user can be notified that the preheating is completed and can be used for boiling water.
請參閱圖1及5，本實施例熱水器循環預熱的啟動流程，包括步驟如下：當欲開始預熱前，先進行預熱功能選擇的判斷，若選擇定時預熱功能，先進行預熱時間的設定，當到達設定時間時，啟動預熱功能命令，以控制循環泵5啟動；若選擇直接預熱功能，則直接啟動預熱功能命令，以控制循環泵5啟動；接著，進行熱水器1水流檢知，以判斷有無水流，若無水流則控制循環泵5停止，以停止預熱循環；若有水流則啟動熱水器1點火，再判斷熱水器1是否正常啟動，若是熱水器1正常啟動，則啟動預熱循環的操作，若是熱水器1未正常啟動，則控制循環泵5停止，以停止預熱循環。 Referring to FIG. 1 and FIG. 5, the startup process of the water heater circulating preheating in the embodiment includes the following steps: before starting the preheating, the preheating function selection is judged first, and if the timing preheating function is selected, the preheating time is first performed. The setting, when the set time is reached, the preheating function command is started to control the circulation pump 5 to start; if the direct warming function is selected, the preheating function command is directly started to control the circulation pump 5 to start; then, the water flow of the water heater 1 is performed. Check to determine that there is no water flow, if there is no water flow, control the circulation pump 5 to stop, to stop the preheating cycle; if there is water flow, start the water heater 1 to ignite, and then judge whether the water heater 1 starts normally, if the water heater 1 starts normally, then start the preheating In the operation of the thermal cycle, if the water heater 1 is not normally started, the circulation pump 5 is controlled to stop to stop the preheat cycle.
請參閱圖1及6，本實施例熱水器循環預熱的關閉流程，包括 步驟如下：在預熱循環中時，循環熱水經過溫度感應斷水裝置7，以判斷預熱中循環溫度是否到達設定溫度，若預熱中循環溫度未到達設定溫度，溫度感應斷水裝置7為開路導通狀態，持續熱水循環預熱；若預熱中循環溫度已達設定溫度，該溫度感應斷水裝置7為斷路狀態，以切斷熱水；接著，熱水器1水流檢知無水流，熱水器1切斷瓦斯停止運轉，並控制循環泵5停止。另，亦可通知使用者預熱完成，可開水使用。 Referring to FIG. 1 and FIG. 6 , the shutdown process of the water heater circulating preheating according to the embodiment includes the following steps: during the preheating cycle, the circulating hot water passes through the temperature sensing water shutoff device 7 to determine whether the circulating temperature in the preheating reaches the setting. Temperature, if the circulating temperature in the preheating does not reach the set temperature, the temperature sensing water shutoff device 7 is in an open state, and the hot water circulating is preheated; if the circulating temperature in the preheating has reached the set temperature, the temperature sensing water shutoff device 7 is The state of the circuit is cut off to cut off the hot water; then, the water flow of the water heater 1 detects the water flow, the water heater 1 shuts off the gas and stops the operation, and controls the circulation pump 5 to stop. In addition, the user can be notified that the preheating is completed and can be used for boiling water.
本發明設置有循環泵5、連接管6及溫度感應斷水裝置7，當啟動循環泵5動作時，能將冷水管2及熱水管3中的冷水經由連接管6及循環泵5抽回熱水器1，讓管路中冷水變為熱水後，再輸送至出水裝置4，開啟出水裝置4立即有熱水，以減少水資源的浪費。本發明主要在連接管6上裝設有溫度感應斷水裝置7，當啟動循環泵5預熱，熱水管3末端的溫度感應斷水裝置7已達設定溫度時，該溫度感應斷水裝置7會切斷水，停止循環預熱系統，此時該溫度感應斷水裝置7為斷水狀態，預熱完成的熱水不會流入冷水管2，以避免造成水資源浪費。 The present invention is provided with a circulation pump 5, a connecting pipe 6 and a temperature sensing water shutoff device 7. When the circulating pump 5 is activated, the cold water in the cold water pipe 2 and the hot water pipe 3 can be pumped back to the water heater via the connecting pipe 6 and the circulation pump 5. 1. After the cold water in the pipeline is changed to hot water, it is sent to the water outlet device 4, and the water outlet device 4 is turned on to immediately have hot water to reduce the waste of water resources. The invention mainly comprises a temperature-sensing water-breaking device 7 on the connecting pipe 6, and when the circulating pump 5 is preheated, and the temperature-sensing water-cutting device 7 at the end of the hot water pipe 3 has reached the set temperature, the temperature-sensing water-cutting device 7 The water will be shut off and the circulating preheating system will be stopped. At this time, the temperature sensing water shutoff device 7 is in a water cut state, and the hot water completed by the preheating does not flow into the cold water pipe 2 to avoid waste of water resources.
以上所述僅為本發明之優選實施例，非意欲侷限本發明的專利保護範圍，故凡是運用本發明說明書及附圖內容所作的等效變化，均同理皆包含於本發明的權利保護範圍內。 The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, equivalent changes made by using the description of the present invention and the contents of the drawings are all included in the scope of protection of the present invention. Inside.
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| JP2002071213A (en) * | 2000-06-14 | 2002-03-08 | Tokyo Gas Co Ltd | Feed water preheater for water heater, water heater, and front cover thereof |
| KR20130126299A (en) * | 2012-05-11 | 2013-11-20 | 주식회사 경동원 | Method for controlling hot water pre-heating of water heater according to hot water using pattern of user |
| EP2902714B1 (en) * | 2012-09-28 | 2019-10-23 | Mitsubishi Electric Corporation | Hot-water supply system |
| TWM530934U (en) * | 2016-07-12 | 2016-10-21 | Lien Yun Dev Co Ltd | Preheated water supply system |
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