CN203785252U - Circulation type heat-pump water heater - Google Patents

Circulation type heat-pump water heater Download PDF

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Publication number
CN203785252U
CN203785252U CN201420112653.4U CN201420112653U CN203785252U CN 203785252 U CN203785252 U CN 203785252U CN 201420112653 U CN201420112653 U CN 201420112653U CN 203785252 U CN203785252 U CN 203785252U
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CN
China
Prior art keywords
water
temperature
main frame
valve
pipe
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Expired - Fee Related
Application number
CN201420112653.4U
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Chinese (zh)
Inventor
饶荣水
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.)
Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201420112653.4U priority Critical patent/CN203785252U/en
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Publication of CN203785252U publication Critical patent/CN203785252U/en
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Abstract

The utility model discloses a circulation type heat-pump water heater. The circulation type heat-pump water heater comprises a main unit, a water tank, a water inlet pipe, a water outlet pipe, a water return pipe and a control detection device, wherein both ends of the water inlet pipe are connected with the main unit and the water tank respectively; both ends of the water inlet pipe are connected with the main unit and the water tank respectively; the water inlet pipe and the water outlet pipe define a first circulation loop; the two ends of the water return pipe are connected with the water outlet pipe and the water inlet pipe respectively; a second circulation loop is defined among the water return pipe, a part of the water outlet pipe and a part of the water inlet pipe; the control detection device is used for detecting the temperature of water drained from the main unit, is connected to the first circulation loop and the second circulation loop, and controls one of the first circulation loop and the second circulation loop to be turned on according to a detection result. According to the circulation type heat-pump water heater, the temperature of the water entering into the water tank can be higher than the set water outlet temperature, so that the temperature fluctuation of the water in the water tank is reduced, and the using comfort of a user is improved.

Description

Circulating heat pump water heater
Technical field
The utility model relates to field of water heaters, especially relates to a kind of circulating heat pump water heater.
Background technology
Circulating heat pump water heater is because parts are fewer than directly-heated type Teat pump boiler, and system is simple, and cost is low, obtains more application.Circulating heat pump water heater exists pumping for water pump and draining feed-tank water temperature to bring larger fluctuation in actual use, even occurs, mixed hot water cold situation, having reduced the comfortableness using.
Utility model content
The utility model is intended to solve at least to a certain extent one of technical problem in correlation technique.For this reason, an object of the present utility model is to propose a kind of circulating heat pump water heater, has reduced the fluctuating temperature in water tank.
According to circulating heat pump water heater of the present utility model, comprising: main frame, described main frame has heat pump and controller; Water tank; Water inlet pipe, the two ends of described water inlet pipe are connected with described water tank with described main frame respectively; Outlet pipe, the two ends of described outlet pipe are connected with described water tank with described main frame respectively, and described water inlet pipe and described outlet pipe limit the first closed circuit; Return pipe, the two ends of described return pipe are connected with described water inlet pipe with described outlet pipe respectively, between a part for described return pipe, described outlet pipe, a part for described water inlet pipe, limit the second closed circuit; For detection of the control checkout gear of the temperature of the water of discharging from described main frame, described control checkout gear is connected to described the first closed circuit and described the second closed circuit, described control checkout gear according to one of them conducting in the first closed circuit described in testing result control and described the second closed circuit to make the water of discharging from described main frame flow into described water tank or flow back to described main frame.
According to circulating heat pump water heater of the present utility model, by being provided with the second closed circuit being communicated with main frame and controlling checkout gear, in the time controlling checkout gear and the temperature of water of discharging from main frame detected lower than water outlet design temperature, the water of discharging from main frame is expelled back into and in main frame, carries out circulating-heating, until the temperature of water of discharging from main frame is during higher than water outlet design temperature, the water of discharging from main frame just enters in water tank, thereby ensure that the temperature that enters into the water in water tank is all higher than water outlet design temperature, reduce the fluctuating temperature in water tank, promote user's comfort.
In addition, can also there is following additional technical characterictic according to the circulating heat pump water heater of the utility model above-described embodiment:
In embodiment more of the present utility model, described control checkout gear is mechanical type temperature control three-way valve, and described mechanical type temperature control three-way valve is located at the junction of described outlet pipe and described return pipe.
In other embodiment of the present utility model, described control checkout gear comprises: for detection of the first temperature-detecting device of the water temperature in described outlet pipe; Triple valve, described triple valve is located at the junction of described outlet pipe and described return pipe.
Preferably, described triple valve is electric T-shaped valve and is connected with described the first temperature-detecting device.
In some embodiment more of the present utility model, described control checkout gear comprises: for detection of the first temperature-detecting device of the water temperature in described outlet pipe; The first two-port valve, described the first two-port valve is located on described outlet pipe and between the junction and described water tank of described return pipe and described outlet pipe; The second two-port valve, described the second two-port valve is located on described return pipe.
Preferably, described the first two-port valve and described the second two-port valve are respectively electric two-way valve, and described the first two-port valve is connected with described the first temperature-detecting device respectively with described the second two-port valve.
Preferably, described the first temperature-detecting device is temperature sensor.
In further embodiment of the present utility model, circulating heat pump water heater also comprises water pump, and described water pump is located on described water inlet pipe.
Brief description of the drawings
Fig. 1 is according to the schematic diagram of the circulating heat pump water heater of an embodiment of the utility model;
Fig. 2 is according to the schematic diagram of the circulating heat pump water heater of another embodiment of the utility model;
Fig. 3 is according to the schematic diagram of the circulating heat pump water heater of another embodiment of the utility model.
Reference numeral:
Circulating heat pump water heater 100, main frame 1, water pump 2, the second temperature-detecting device 3,
Water tank 4, water inlet pipe 5, the first arm 51, the second arm 52, outlet pipe 6,
The 3rd arm 61, the 4th arm 62, mechanical type temperature control three-way valve 7, the first valve port a,
The second valve port b, the 3rd valve port c, the first temperature-detecting device 9, triple valve 10,
The 4th valve port d, the 5th valve port e, the 6th valve port f, the first two-port valve 11,
The second two-port valve 12, return pipe 8
Detailed description of the invention
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Describe according to the circulating heat pump water heater 100 of the utility model embodiment below with reference to Fig. 1-Fig. 3.
As shown in Figure 1-Figure 3, according to the circulating heat pump water heater 100 of the utility model embodiment, comprise: main frame 1, water tank 4, the first closed circuit, the second closed circuit and control checkout gear, wherein, main frame 1 has heat pump (scheming not shown) and controller (scheming not shown).Between water tank 4 and main frame 1, pass through the first closed circuit conducting.Particularly, extraneous water source is drained into cold water in water tank 4, now by the first closed circuit, water in water tank 4 can be drained in main frame 1 and heat, it is interior to make the water temperature in water tank 4 raise with cold water mix that hot water after heating also can be expelled back into water tank 4, and the hot water in water tank 4 can be discharged for user and be used.
The two ends of the second closed circuit are communicated with main frame 1 respectively, that is to say, are expelled back into and in main frame 1, are carried out circulating-heating by the second closed circuit from the water of main frame 1 interior discharge.Control checkout gear for detection of the temperature of the water of discharging from main frame 1 and judge whether to be greater than water outlet design temperature, and control checkout gear and be connected to the first closed circuit and the second closed circuit, control checkout gear and flow into water tank or flow back to main frame with the water that makes to discharge from main frame according to one of them conducting in testing result control the first closed circuit and the second closed circuit.That is to say, control checkout gear and can be used for detecting the temperature of the water of discharging from main frame 1 and the temperature detecting and water outlet design temperature being compared, and control conducting or the disconnection that checkout gear also can be used for controlling the first closed circuit and the second closed circuit.
Circulating heat pump water heater 100 also comprises: water inlet pipe 5, outlet pipe 6 and return pipe 8, wherein, the two ends of water inlet pipe 5 are connected with water tank 4 with main frame 1 respectively.The two ends of outlet pipe 6 are connected with water tank 4 with main frame 1 respectively, water inlet pipe 5 and outlet pipe 6 limit the first closed circuit, the water of now discharging from water tank 4 enters in main frame 1 and heats through water inlet pipe 5, and the hot water in main frame 1 after heating is drained in water tank 4 through outlet pipe 6.
The two ends of return pipe 8 are connected with water inlet pipe 5 with outlet pipe 6 respectively, and a part for return pipe 8, outlet pipe 6, a part for water inlet pipe 5 limit the second closed circuit.
More specifically, water inlet pipe 5 comprises the first arm 51 and the second arm 52, outlet pipe 6 comprises the 3rd arm 61 and the 4th arm 62, the first end of the first arm 51 is connected with main frame 1, the second end of the first arm 51 is connected with the first end of return pipe 8, the first end of the second arm 52 is connected with the first end of return pipe 8, and the second end of the second arm 52 is connected with water tank 4.The first end of the 3rd arm 61 is connected with main frame 1, the second end of the 3rd arm 61 is connected with the second end of return pipe 8, the first end of the 4th arm 62 is connected with the second end of return pipe 8, the second end of the 4th arm 62 is connected with water tank 4, that is to say, now the first arm 51, the second arm 52, the 3rd arm 61, the 4th arm 62 form the first closed circuit, and the first arm 51, return pipe 8 and the 3rd arm 61 form the second closed circuit.
Control checkout gear and be connected on the first closed circuit and the second closed circuit to control one of them conducting in the 3rd arm 61 and the 4th arm 62 and return pipe 8, and what control checkout gear detection is the water temperature in the 3rd arm 61.In the time controlling checkout gear and detect that water temperature in the 3rd arm 61 is lower than water outlet design temperature, control checkout gear control the 3rd arm 61 and return pipe 8 conductings to make the second closed circuit conducting.In the time controlling checkout gear and detect that water temperature in the 3rd arm 61 is higher than water outlet design temperature, control checkout gear control the 3rd arm 61 and the 4th arm 62 conductings to make the first closed circuit conducting.Thereby make the simple in structure of circulating heat pump water heater 100.
That is to say, when the temperature that the water of discharging from main frame 1 detected is during higher than water outlet design temperature, control checkout gear control the first closed circuit conducting and the second closed circuit and disconnect, the water of now discharging from main frame 1 is drained in water tank 4 through the first closed circuit.When the temperature that the water of discharging from main frame 1 detected is during lower than water outlet design temperature, control checkout gear control the second closed circuit conducting and the first closed circuit and disconnect, the water of now discharging from main frame 1 is expelled back into and in main frame 1, carries out circulating-heating until control temperature that checkout gear detects the water of discharging from main frame 1 higher than water outlet design temperature through the second closed circuit.Thereby ensure that the temperature that is drained into the water in water tank 4, higher than water outlet design temperature, has reduced stirring of water temperature in water tank 4.Wherein, it should be noted that, this water outlet design temperature can be the artificial value of setting, and can be also the temperature value of circulating heat pump water heater 100 self default.
Wherein, what also need to describe is, circulating heat pump water heater 100 also comprises the second temperature-detecting device 3, this second temperature-detecting device 3 is for detection of the water temperature in water tank 4, the second temperature-detecting device 3 is connected with the controller of main frame 1, the unlatching of the water temperature main control system 1 that controller detects according to the second temperature-detecting device 3 or close.
According to the circulating heat pump water heater 100 of the utility model embodiment, by being provided with the second closed circuit being communicated with main frame 1 and controlling checkout gear, in the time controlling temperature that checkout gear detects the water of discharging from main frame 1 lower than water outlet design temperature, the water of discharging from main frame 1 is expelled back into and in main frame 1, carries out circulating-heating, until the temperature of the water of discharging from main frame 1 is during higher than water outlet design temperature, the water of discharging from main frame 1 just enters in water tank 4, thereby ensure that the temperature that enters into the water in water tank 4 is all higher than water outlet design temperature, reduce the fluctuating temperature in water tank 4, promote user's comfort.
As shown in Figure 1-Figure 3, in embodiment more of the present utility model, in order to ensure the water in water tank 4 can be pumped in main frame 1 and to heat, circulating heat pump water heater 100 also comprises water pump 2, and water pump 2 is located on water inlet pipe 5.Wherein, in the example of Fig. 1-Fig. 3, water pump 2 is located on the first arm 51.
Describe according to structure and the operation principle of the circulating heat pump water heater 100 of three different embodiment of the utility model below with reference to Fig. 1-Fig. 3, wherein it should be noted that, the difference of the circulating heat pump water heater 100 of three following different embodiment is to control checkout gear, the first closed circuit of circulating heat pump water heater 100 is all identical with the formation of the second closed circuit, be the first arm 51, the second arm 52, the 3rd arm 61, the 4th arm 62 and form the first closed circuit, the first arm 51, return pipe 8 and the 3rd arm 61 form the second closed circuit.
Embodiment 1:
As shown in 1, in embodiment of the present utility model, controlling checkout gear is mechanical type temperature control three-way valve 7, and mechanical type temperature control three-way valve 7 is located at the junction of outlet pipe 6 and return pipe 8.Wherein, it should be noted that, structure and the operation principle etc. of mechanical type temperature control three-way valve 7 are prior art, are not just described in detail here.In concrete example of the present utility model, water outlet design temperature can regulate by the knob on mechanical type temperature control three-way valve 7.
Particularly, mechanical type temperature control three-way valve 7 comprises the first valve port a, the second valve port b and the 3rd valve port c, wherein the first valve port a is connected with the second end of the 3rd arm 61, the second valve port b is connected with the first end of the 4th arm 62, the 3rd valve port c is connected with the second end of return pipe 8, in the time that mechanical type temperature control three-way valve 7 is controlled the first valve port a and the second valve port b conducting, now thereby the 3rd arm 61 and the 4th arm 62 conductings make the first closed circuit conducting, in the time that mechanical type temperature control three-way valve 7 is controlled the first valve port a and the 3rd valve port c conducting, now the 3rd arm 61 and return pipe 8 conductings are to make the second closed circuit conducting.
When circulating heat pump water heater 100 is worked, water pump 2 draws water from water tank 4, water in water tank 4 enters in main frame 1 through water inlet pipe 5, the water entering in main frame 1 flows to the 3rd arm 61 after heating, if when the water temperature in the 3rd arm 61 is greater than water outlet design temperature, hot water from the 3rd arm 61 flow through mechanical type temperature control three-way valve 7 the first valve port a, the second valve port b and flow to water tank 4 through the 4th arm 62.If the leaving water temperature of main frame 1 is during lower than water outlet design temperature, current are through flow through the first valve port a, the 3rd valve port c of mechanical type temperature control three-way valve 7 directly get back to main frame 1 and carry out circulating-heating after water pump 2 circulation of the 3rd arm 61, until the leaving water temperature of main frame 1 is greater than after water outlet design temperature, hot water is just delivered directly to water tank 4.Because water outlet design temperature can be adjusted to water tank 4 water temperature difference apart from less, like this, less to the disturbance of water tank 4 when circulating heat pump water heater 100 is worked, the fluctuating temperature of water tank 4 is little, can promote water comfortableness.
Embodiment 2:
As shown in Figure 2, in embodiment of the present utility model, control checkout gear and comprise: for detection of the first temperature-detecting device 9 and the triple valve 10 of the water temperature in outlet pipe 6, triple valve 10 is located at the junction of outlet pipe 6 and return pipe 8.Now the first temperature-detecting device 9 is for detection of the water temperature in the 3rd arm 61.Preferably, the first temperature-detecting device 9 is temperature sensor.
Particularly, triple valve 10 comprises the 4th valve port d, the 5th valve port e and the 6th valve port f, wherein the 4th valve port d is connected with the second end of the 3rd arm 61, the 5th valve port e is connected with the first end of the 4th arm 62, the 6th valve port f is connected with the second end of return pipe 8, when the water temperature detecting when the first temperature-detecting device 9 sets value higher than water outlet, triple valve 10 is controlled the 4th valve port d and the 5th valve port e conducting, thereby now the 3rd arm 61 and the 4th arm 62 conductings make the first closed circuit conducting.When the water temperature detecting when the first temperature-detecting device 9 sets value lower than water outlet, triple valve 10 is controlled the 4th valve port d and the 6th valve port f conducting, and now the 3rd arm 61 and return pipe 8 conductings are to make the second closed circuit conducting.
When circulating heat pump water heater 100 is worked, water pump 2 draws water from water tank 4, water in water tank 4 enters in main frame 1 through water inlet pipe 5, the water entering in main frame 1 flows to the 3rd arm 61 after heating, if when the water temperature in the 3rd arm 61 is greater than water outlet design temperature, hot water from the 3rd arm 61 flow through triple valve 10 the 4th valve port d, the 5th valve port e and flow to water tank 4 through the 4th arm 62.If the leaving water temperature of main frame 1 is during lower than water outlet design temperature, current are through flow through the 4th valve port d, the 6th valve port f of triple valve 10 directly get back to main frame 1 and carry out circulating-heating after water pump 2 circulation of the 3rd arm 61, until the leaving water temperature of main frame 1 is greater than after water outlet design temperature, hot water is just delivered directly to water tank 4.Because water outlet design temperature can be adjusted to water tank 4 water temperature difference apart from less, like this, less to the disturbance of water tank 4 when circulating heat pump water heater 100 is worked, water tank 4 fluctuating temperatures are little, can promote water comfortableness.
Preferably, triple valve 10 is electric T-shaped valve and is connected with the first temperature-detecting device 9.The result that now triple valve 10 can detect according to the first temperature-detecting device 9 commutates automatically.Thereby improve the automaticity of circulating heat pump water heater 100.
Embodiment 3:
As shown in Figure 3, in embodiment of the present utility model, control checkout gear comprises: for detection of the first temperature-detecting device 9, the first two-port valve 11 and second two-port valve 12 of the water temperature in outlet pipe 6, wherein, the first two-port valve 11 is located on outlet pipe 6 and between the junction and water tank 4 of return pipe 8 and outlet pipe 6.The second two-port valve 12 is located on return pipe 8.Particularly, the first temperature-detecting device 9 is for detection of the water temperature in the 3rd arm 61.The first two-port valve 11 is located at and on the 4th arm 62, is used to open or close the 4th arm 62, the second two-port valves 12 and is located at and on return pipe 8, is used to open or close return pipe 8.Preferably, the first temperature-detecting device 9 is temperature sensor.Wherein, it should be noted that, structure and the operation principle etc. of two-port valve are prior art, are not just described in detail here.
Particularly, the water temperature detecting when the first temperature-detecting device 9 is during higher than water outlet design temperature, the first two-port valve 11 is opened and the second two-port valve 12 cuts out, now the 3rd arm 61 and the 4th arm 62 conductings, make the first closed circuit conducting, the hot water of discharging from main frame 1 is directly drained in water tank 4.The water temperature detecting when the first temperature-detecting device 9 is during lower than water outlet design temperature, the first two-port valve 11 cuts out and the second two-port valve 12 is opened, now the 3rd arm 61 and return pipe 8 conductings, make the second closed circuit conducting, the hot water of discharging from main frame 1 is expelled back into and main frame 1, is carried out circulating-heating by return pipe 8 and the first arm 51, until the water temperature in the 3rd arm 61 is while being greater than water outlet design temperature, hot water just can be delivered directly in water tank 4.
Preferably, the first two-port valve 11 and the second two-port valve 12 are respectively electric two-way valve, and the first two-port valve 11 is connected with the first temperature-detecting device 9 respectively with the second two-port valve 12.The duty of the output control self that now the first two-port valve 11 and the second two-port valve 12 can detect according to the first temperature-detecting device 9, thus the automaticity of circulating heat pump water heater 100 improved.
Wherein, it should be noted that, the structure of controlling checkout gear is not limited to above-mentioned three kinds of embodiment, controls checkout gear and can be formed as structure arbitrarily, can make a conducting in the first closed circuit and the second closed circuit as long as ensure.
According to the circulating heat pump water heater 100 of the utility model embodiment, reduce stirring of water temperature in water tank 4, promote comfort.
In description of the present utility model, it will be appreciated that, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, specific features, structure, material or the feature of description can one or more embodiment in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiment that describe in this description or example and different embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, amendment, replacement and modification.

Claims (8)

1. a circulating heat pump water heater, is characterized in that, comprising:
Main frame, described main frame has heat pump and controller;
Water tank;
Water inlet pipe, the two ends of described water inlet pipe are connected with described water tank with described main frame respectively;
Outlet pipe, the two ends of described outlet pipe are connected with described water tank with described main frame respectively, and described water inlet pipe and described outlet pipe limit the first closed circuit;
Return pipe, the two ends of described return pipe are connected with described water inlet pipe with described outlet pipe respectively, between a part for described return pipe, described outlet pipe, a part for described water inlet pipe, limit the second closed circuit;
For detection of the control checkout gear of the temperature of the water of discharging from described main frame, described control checkout gear is connected to described the first closed circuit and described the second closed circuit, described control checkout gear according to one of them conducting in the first closed circuit described in testing result control and described the second closed circuit to make the water of discharging from described main frame flow into described water tank or flow back to described main frame.
2. circulating heat pump water heater according to claim 1, is characterized in that, described control checkout gear is mechanical type temperature control three-way valve, and described mechanical type temperature control three-way valve is located at the junction of described outlet pipe and described return pipe.
3. circulating heat pump water heater according to claim 1, is characterized in that, described control checkout gear comprises:
For detection of the first temperature-detecting device of the water temperature in described outlet pipe;
Triple valve, described triple valve is located at the junction of described outlet pipe and described return pipe.
4. circulating heat pump water heater according to claim 3, is characterized in that, described triple valve is electric T-shaped valve and is connected with described the first temperature-detecting device.
5. circulating heat pump water heater according to claim 1, is characterized in that, described control checkout gear comprises:
For detection of the first temperature-detecting device of the water temperature in described outlet pipe;
The first two-port valve, described the first two-port valve is located on described outlet pipe and between the junction and described water tank of described return pipe and described outlet pipe;
The second two-port valve, described the second two-port valve is located on described return pipe.
6. circulating heat pump water heater according to claim 5, it is characterized in that, described the first two-port valve and described the second two-port valve are respectively electric two-way valve, and described the first two-port valve is connected with described the first temperature-detecting device respectively with described the second two-port valve.
7. according to the circulating heat pump water heater described in claim 3 or 5, it is characterized in that, described the first temperature-detecting device is temperature sensor.
8. circulating heat pump water heater according to claim 1, is characterized in that, also comprises water pump, and described water pump is located on described water inlet pipe.
CN201420112653.4U 2014-03-12 2014-03-12 Circulation type heat-pump water heater Expired - Fee Related CN203785252U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420112653.4U CN203785252U (en) 2014-03-12 2014-03-12 Circulation type heat-pump water heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420112653.4U CN203785252U (en) 2014-03-12 2014-03-12 Circulation type heat-pump water heater

Publications (1)

Publication Number Publication Date
CN203785252U true CN203785252U (en) 2014-08-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104713244A (en) * 2015-03-16 2015-06-17 广东万和新电气股份有限公司 Water storage type gas water heater and sterilization method thereof
CN105627566A (en) * 2016-01-19 2016-06-01 国家电网公司 Automatic cold water return device of mechanical water heater
CN106247703A (en) * 2016-09-20 2016-12-21 珠海格力电器股份有限公司 A kind of heating/refrigerating system and control method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104713244A (en) * 2015-03-16 2015-06-17 广东万和新电气股份有限公司 Water storage type gas water heater and sterilization method thereof
CN105627566A (en) * 2016-01-19 2016-06-01 国家电网公司 Automatic cold water return device of mechanical water heater
CN105627566B (en) * 2016-01-19 2018-10-26 国家电网公司 Mechanical water heater cold water automatic backflow apparatus
CN106247703A (en) * 2016-09-20 2016-12-21 珠海格力电器股份有限公司 A kind of heating/refrigerating system and control method thereof

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Granted publication date: 20140820

CF01 Termination of patent right due to non-payment of annual fee